Angularly Adjustable Cutter Head Patents (Class 409/201)
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Publication number: 20110194906Abstract: A machine tool has a tool holder mounted to a platform, and a plurality of legs for connecting the platform to a workpiece. Each leg has joint systems which allow each leg to rotate relative to the platform and the workpiece and are also actuatable to alter the inter-joint distance. By alterations in the inter-joint distances of the legs the position and orientation of the tool holder relative to the workpiece is controllable. Each leg also has an attachment foot for removably attaching the leg to the workpiece. The provision of separate attachment feet avoids the need for a dedicated base for the machine tool so that it can be used in-situ and in confined and obstructed working environments.Type: ApplicationFiled: August 31, 2009Publication date: August 11, 2011Applicants: ROLLS-ROYCE PLC, ROLLS-ROYCE POWER ENGINEERINGInventors: John M. Allen, Dragos A. Axinte, Ralph G. Anderson, James R. Fortune, Paul R. Roberts
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Patent number: 7975355Abstract: A device includes pivoting elements enabling the drilling axis (A6) of the drilling tool (35) to be pivoted (PIV) about the axis of orientation, and elements for adjusting the angular position of the drilling tool (35) about the axis of orientation. It also includes first mobility members enabling relative mobility of the drilling tool (35) in relation to the lens to be drilled (L), or vice-versa, according to a first degree of mobility (ESC) which is distinct from the pivoting of the drilling axis of the drilling tool (35) about the axis of orientation. The elements for adjustment are configured so as to control the pivoting of the drilling axis (A6) of the drilling tool (35) about the axis of orientation, in favor of the first degree of relative mobility of the drilling tool (35) in relation to the lens (L) that is to be drilled.Type: GrantFiled: August 4, 2005Date of Patent: July 12, 2011Assignee: Essilor International (Compagnie d'Optique)Inventors: Michel Nauche, Jean-Michel Bargot
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Patent number: 7938602Abstract: In a three degrees of freedom parallel mechanism, a spindle head is carried by first and second movable support members to be movable along a Z-axis and to be pivotable along each of A and B-axes. The spindle head is jointed through three rods to drive sliders which are movable along three parallel linear guides secured stationarily. For jointing, there are employed spherical joints and universal joints. Kinematic parameters used in converting each command position of the movable body to target operational positions for three actuators of the Z, A and B-axes are compensated based on inversely converted command positions and inversely converted actually measured positions which have been gathered with the spindle head being located at positions of a suitable number, so that the kinematic parameters can be updated to those newest.Type: GrantFiled: March 19, 2007Date of Patent: May 10, 2011Assignee: JTEKT CorporationInventor: Hiromichi Ota
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Publication number: 20110076108Abstract: A swivel spindle head with gear device driven by multiple torque motors is disclosed, which comprises: a tool spindle, having a first shaft and a second shaft being radially disposed at two opposite sides of the tool spindle while sharing a common axial line; a plurality of torque motors, radially disposed at a side of the tool spindle; and a reduction gear set, radially disposed at a side of the tool spindle opposite to the plural torque motors, composed of a plurality of driving gears and a driven gear; wherein the amount of the plural driving gears is the same as that of the plural torque motors while enabling each of the plural driving gears to connect with a rotor shaft of its corresponding torque motor, and the same time, connecting the driven gear on the second shaft of the tool spindle.Type: ApplicationFiled: November 11, 2009Publication date: March 31, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chin-Mou Hsu, Ching-Yuan Lin, En-Sheng Chang, Shih-Yen Chung
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Patent number: 7909551Abstract: An apparatus and method for shaving the inside of barrels. The invention relates to reconditioning used wine barrels by shaving the inside surface to a predetermined depth, ready for re-crozering, toasting, and re-use. Conventional shaving methods typically involve routing the internal surface by hand, but this technique is problematic in that it is a very slow process, the quality of the wood is often adversely affected, and there is no way of ensuring that the surface will be shaved to the same depth across the entire surface. The resultant internal dimensions of the barrel are not reflective, relatively, of the original barrel surface. The invention includes a scanning device to scan the internal dimensions of the barrel, and a cutting device to shave the internal surface to a predetermined depth relative to the scanned internal dimensions and where the scanning device and the cutting device may be supported by different robotic arms.Type: GrantFiled: July 6, 2010Date of Patent: March 22, 2011Assignee: Southern Cross Cooperage Pty LtdInventor: Breck Waterman
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Patent number: 7909550Abstract: A swivel spindle head with gear device driven by multiple torque motors is disclosed, which comprises: a tool spindle, having a first shaft and a second shaft being radially disposed at two opposite sides of the tool spindle while sharing a common axial line; a plurality of torque motors, radially disposed at a side of the tool spindle; and a reduction gear set, radially disposed at a side of the tool spindle opposite to the plural torque motors, composed of a plurality of driving gears and a driven gear; wherein the amount of the plural driving gears is the same as that of the plural torque motors while enabling each of the plural driving gears to connect with a rotor shaft of its corresponding torque motor, and the same time, connecting the driven gear on the second shaft of the tool spindle.Type: GrantFiled: November 11, 2009Date of Patent: March 22, 2011Assignee: Industrial Technology Research InstituteInventors: Chin-Mou Hsu, Ching-Yuan Lin, En-Sheng Chang, Shih-Yen Chung
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Patent number: 7891920Abstract: To provide a spindle device and a machining center, in which spindle replacement can be carried out in an extremely short time, downtime during maintenance is short, and productivity is high. In a spindle device 20, there are provided wirings 41, 42 extended from a spindle 30 and wired to support arms via a bracket 21, and joint components 74, each provided at a position a predetermined length extended from extended parts for the wirings 41, 42, are accommodated within the bracket 21.Type: GrantFiled: October 31, 2007Date of Patent: February 22, 2011Assignees: NSK Ltd., Tsudakoma Corp.Inventors: Hiroki Yoneyama, Yoshifumi Inagaki, Osamu Iwasaki, Yoshinori Tatsuda
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Patent number: 7857558Abstract: A milling machine (1) for the machining of large components includes a milling head (9) which includes a support beam (8) which is movable along a longitudinal axis (Z); a pivot body (14) which is supported and guided by the support beam (8) by way of a curved guide arrangement (36) so as to be pivotable about a first pivot axis (B) which extends normal to the longitudinal axis (Z) and a motor milling spindle (11) which is supported on the pivot body (14) so as to be pivotable about a second pivot axis (A) which extends normal to the first pivot axis (B). The rotation of the pivot body (14) and of the milling spindle (11) is controlled by drive arrangements (37, 50) assigned to the pivot axis (A, B). The curved guide arrangement (36) includes guide carriages (34) attached to them support beam (8) and a circular arc segment-shaped guide track (32) which is attached to the pivot body (14) and which provide for pivot range about the first pivot axis (B) of at least 180.degree..Type: GrantFiled: August 21, 2007Date of Patent: December 28, 2010Assignee: F. Zimmerman GmbHInventor: Rudiger Schrott
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Patent number: 7832496Abstract: A deep-hole boring machine (100) includes a base (11) to be fitted to an upper face of a floor, a pillar (14), a fixing mechanism (40), a guide member (15), a rotary tool (17), a tool rotation driving section (16), a rising/descending mechanism (50), a guide base (60) and a tool guide mechanism (30). The deep-hole boring machine 100 can be used to bore a vertical hole or an inclined hole in a concrete in a construction site.Type: GrantFiled: March 19, 2008Date of Patent: November 16, 2010Assignee: Goei Co., Ltd.Inventor: Tomomi Nakayabu
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Patent number: 7823632Abstract: A methodology and apparatus for cutting shape(s) or profile(s) through well tubular(s), or for completely circumferentially severing through multiple tubulars, including all tubing, pipe, casing, liners, cement, other material encountered in tubular annuli. This rigless apparatus utilizes a computer-controlled, downhole robotic three-axis rotary mill to effectively generate a shape(s) or profile(s) through, or to completely sever in a 360 degree horizontal plane wells with multiple, nested strings of tubulars whether the tubulars are concentrically aligned or eccentrically aligned. This is useful for well abandonment and decommissioning where complete severance is necessitated and explosives are prohibited, or in situations requiring a precise window or other shape to be cut through a single tubular or plurality of tubulars.Type: GrantFiled: August 13, 2009Date of Patent: November 2, 2010Assignee: Completion Technologies, Inc.Inventors: Wesley Mark McAfee, Mark Franklin Alley
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Patent number: 7793564Abstract: A parallel mechanism which has a holding bracket; a movable platform; and three branch joint assemblies of the same structure that are spatially arranged symmetrically about an axis disposed between the holding bracket and the movable platform. Each branch joint assembly has a connecting rod, a linear guide, a driving device and a carriage. The linear guide and the driving device both are secured on the connecting rod. One end of the connecting rod is connected with the movable platform through a hinge having three rotational degrees of freedom. The carriage and the linear guide are connected with each other by a sliding joint, and the carriage is connected with the holding bracket by a hinge having one rotational degree of freedom.Type: GrantFiled: January 25, 2007Date of Patent: September 14, 2010Assignee: Tianjin UniversityInventors: Tian Huang, Haitao Liu
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Patent number: 7771146Abstract: The present invention relates to an apparatus and method for shaving the inside of barrels. In particular, the present invention relates to reconditioning used wine barrels by shaving the inside surface to a predetermined depth, ready for re-crozering, toasting, and re-use. Conventional shaving methods typically involve routing the internal surface by hand, but this technique is problematic in that it is a very slow process, the quality of the wood is often adversely affected, and there is no way of ensuring that the surface will be shaved to the same depth across the entire surface. Therefore, the resultant internal dimensions of the barrel are not reflective, relatively, of the original barrel surface. The apparatus of the present invention includes a scanning device adapted to scan the internal dimensions of the barrel, and a cutting device adapted to shave the internal surface to a predetermined depth relative to the scanned internal dimensions.Type: GrantFiled: November 14, 2008Date of Patent: August 10, 2010Assignee: Southern Cross Cooperage Pty LtdInventor: Breck Waterman
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Patent number: 7726919Abstract: A machine tool includes a driver, a tool holder, and a locking device in the form of, for example, an alignment collar. In use, the machine tool carries a tool, such as a surface refinishing bit, which may be lowered into a workpiece bore, such as a cylinder head valve seat, and subsequently rotated by a machine spindle for resurfacing the bore. The machine tool receives a pilot shaft placed in a reference bore associated with the workpiece bore. The pilot shaft functions to ensure general alignment of the machine tool cutting axis and the refinishing surface.Type: GrantFiled: February 1, 2006Date of Patent: June 1, 2010Assignee: Rottler Manufacturing Inc.Inventors: Donald Brooks Rottler, Anthony R C Usher, Ranjit (Robin) Chera, Andrew Rottler
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Patent number: 7721410Abstract: The invention relates to a machine tool (1) comprising a machine tower (2) which can be displaced in a linear manner along a straight track (13), a tool head (4) which is arranged on the machine tower (2) and a tool (5) which is used to process work pieces. A first mounting device (25) is arranged on a first side of the straight track (13) and a second mounting device (26) is arranged on the other side of the straight track (13) which is opposite the first side. The tool head (4) can be positioned in such a manner that it can selectively process a first work piece in the first mounting device (25) or a second work piece in the second mounting device (26). Initially, the first work piece is mounted in the first mounting device for processing, and the tool head is positioned in such a manner that the first work piece can be processed. During processing, the second work piece is mounted in the second mounting device.Type: GrantFiled: May 25, 2004Date of Patent: May 25, 2010Assignee: Gudel Group AGInventors: Hans Ulrich Kurt, Rudolf Heid, Herbert Wirz
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Patent number: 7707705Abstract: Metallic guide elements having a functional area are made from profiled blanks by hot forming the profiled blanks and subsequently milling in a high speed milling cutter system the profiled blanks by a position-controlled milling cutter head with milling disks of a great diameter, wherein in the step of hot forming the profiled blanks are matched with regard to a cross-sectional mass distribution of the profiled blanks, respectively, to the subsequent step of milling such that by a partial cutting removal in the areas of the profiled blanks that become the functional area of the guide element narrow dimensional tolerances are produced. The material flow of the profiled blanks within the high-speed milling cutter system is controlled autonomously by an integrated stacking device that has manipulators and turning stations.Type: GrantFiled: November 25, 2005Date of Patent: May 4, 2010Assignee: Hoesch Schwerter Profile GmbHInventors: Lothar Pleugel, Ingo Strege, Olaf Frigge, Dietmar Bretzke
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Patent number: 7657984Abstract: A robot positioned welding tip dresser assembly includes a pivot arm pivotally mountable on a welding gun apparatus. The pivot arm is pivotal about a pivot point. A welding tip dresser is mounted on a distal end of the pivot arm. A first retaining tab extends from the pivot arm. The first retaining tab includes an opening extending therethrough. At least one positioning mechanism is disposed relative to the pivot point and is cooperable with the first retaining tab to retain the pivot arm in one of a home position and a working position. The first retaining tab is engagable by end-of-arm tooling of a robot. The end-of-arm tooling is operable to release the positioning mechanism, and movement of the robot moves the pivot arm between the home and working positions.Type: GrantFiled: June 17, 2008Date of Patent: February 9, 2010Assignee: Hirotec America, Inc.Inventors: Brian Hopkins, Melissa Wilkins
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Publication number: 20100030367Abstract: A machine tool with a main positioning device for positioning a main support element in a translational linear direction within a main region of displacement is provided. A main machining device and an accessory machining device are arranged on the main support element. The machining devices have pivoting devices for pivoting the machining heads in a rotatory basic pivoting direction. Every accessory pivoting device is connected to the main support element via a respective supplementary accessory positioning device for positioning the respective accessory machining head in the translational linear direction relative to the main support element within a respective supplementary accessory region of displacement.Type: ApplicationFiled: October 19, 2007Publication date: February 4, 2010Inventor: Eberhard Zentgraf
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Patent number: 7566193Abstract: The invention relates to a tool head for moving a tool (6) having a plurality of mobile shafts (2, 4, 5, 8, 11) which allow to move the tool (6) linearly and rotationally. The invention also relates to a combination drive (10) for driving a shaft by means of which the shaft (11) driven by the combination drive (10) can perform a linear and rotational movement and to the use of a combination drive (10) for driving a shaft (11) of a tool head for moving a tool, the shaft (11) driven by the combination drive (10) being capable of performing a linear and a rotational movement. The invention finally relates to a method for movement control. The invention provides a tool head that allows very high dynamics of movement of the tool.Type: GrantFiled: August 9, 2007Date of Patent: July 28, 2009Assignee: Siemens AktiengesellschaftInventors: Ali Haj-Fraj, Jens Hamann, Uwe Ladra, Hans-Peter Tröndle
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Publication number: 20090162160Abstract: The subject-matter of the invention is a machining unit for a milling and drilling machine, comprising a spindle housing (1) which is supported on a machine part and can be moved in a longitudinal direction, a milling head (5) mounted on the face end of the spindle housing (1), a work spindle (6) supported in the milling head (5) and comprising an electric drive motor, and an energy and working stock supply to the milling head (5) formed of bunched lines and cables. The bunched lines and cables for the energy and working stock supply are disposed inside the spindle housing (1) in the shape of a string (25) and introduced into the milling head (5) via a rotary transmission leadthrough (8) on the face.Type: ApplicationFiled: December 8, 2008Publication date: June 25, 2009Applicant: DECKEL MAHO PFRONTEN GMBHInventors: Karl Lechleiter, Hans Gronbach, Alfred Geissler
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Publication number: 20090136312Abstract: The invention relates to a turning center which comprises a machine frame, a first workpiece spindle unit having a first workpiece spindle, a second workpiece spindle unit, which is disposed on the machine frame and having a second workpiece spindle, at least one tool carrier unit, which is disposed on the machine frame and on which at least one tool for machining a workpiece held in the workpiece spindle units is disposed, and a working space, in which workpieces held in the workpiece spindle units can be machined with the tool. The aim of the invention is to provide a turning center which is compact as possible while allowing extensive turning and/or milling applications, and also ensures highest possible machining accuracy.Type: ApplicationFiled: November 26, 2008Publication date: May 28, 2009Applicant: Index-Werke GmbH & Co. KG Hahn & TesskyInventor: Walter Grossmann
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Publication number: 20090123246Abstract: A moving section of a parallel mechanism is fed having two freedoms. A first moving section base is screw-engaged with a first feed screw shaft, and a second moving section base is screw-engaged with a second feed screw shaft. A spindle head is pivotably connected by a support shaft to the first moving section base. A coupling shaft at an extreme end of an extension lever extending downward from the spindle head is rotatably coupled to a guided piece on a slant linear guide provided on the second moving section base and is coupled to the second moving section base. Thereby, a tilt function maintaining advantages of a tandem drive and being high in rigidity is realized without increasing control axes beyond the number of axes corresponding to tandem axes.Type: ApplicationFiled: June 15, 2007Publication date: May 14, 2009Applicant: JTEKT CORPORATIONInventor: Takashi Matsui
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Patent number: 7506424Abstract: A rotary tool-equipped tool rest is provided, including a movable member made to move frontwardly when a turret is clamped with respect to a non-swiveling housing after swiveling and indexing. Then, a phase determining pin provided in the turret is made to project and engage with the non-swiveling housing. Further, a coupling mechanism to clamp the turret with respect to the non-swiveling housing has three coupling members.Type: GrantFiled: October 5, 2007Date of Patent: March 24, 2009Assignee: Okuma CorporationInventors: Shinya Neo, Tsutomu Osaki, Takahiko Shozusawa
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Patent number: 7475469Abstract: A process of producing profiled tracks for joint parts is provided, wherein a cutting tool acts on the workpiece, a workpiece machining being performed with the cutting tool during the relative forward movement between workpiece and tool, and a workpiece machining being performed with the same cutting tool during the return movement following the forward movement.Type: GrantFiled: August 17, 2006Date of Patent: January 13, 2009Assignees: Ex-Cell-O GmbH, GKN Driveline International GmbHInventors: Markus Stanik, Willi Schnitzler, Udo Rothenbuecher, Uwe Runow
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Patent number: 7470095Abstract: A milling head (16) for a milling machine (1) arranged for machining large-size workpieces comprises a fork 18, which is rotatably arranged around a first axis (C) and demonstrates a pair of fork arms (21, 22), which are separated from one another, a spindle device (23), which is arranged between the fork arms and rotatable around a second axis A, a first torque motor (42), which is coupled to the fork 18 for directly driving and controlling of the rotation of the fork around the first axis (C), and a second torque motor (57) for driving and controlling the rotation of the spindle around the second axis (A), said second torque motor being coupled to the spindle device (23) by means of a one-stage toothed gearing (61), which is mechanically clamped free of backlash. The configuration according to the invention is arranged to achieve high torque with high dynamic stiffness and small interference contour of the milling head (16).Type: GrantFiled: September 11, 2006Date of Patent: December 30, 2008Assignee: F. Zimmerman GmbHInventor: Bernhard Brunemann
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Publication number: 20080267727Abstract: A rotary motion cutting tool having an axis of rotation for cutting at least a portion of the spherical surface on an internal surface of a workpiece includes a rotary slide, a rotary actuator, and an actuating plate with a rotary surface machined therein. The rotary slide is rotatably supported with respect to a rotary axis extending generally perpendicular to the axis of rotation of the rotary motion cutting tool. The rotary actuator is rotatably supported with respect to the rotary slide for rotation about a rotary actuator support axis spaced radially from, and generally parallel with, the rotary axis of the rotary slide. The actuating plate is driven in reciprocal movement along the axis of rotation for interaction with the rotary actuator. Reciprocal movement of the actuating plate translates through the rotary surface and rotary actuator into rotary movement of the rotary slide through an arc about the rotary axis.Type: ApplicationFiled: April 26, 2007Publication date: October 30, 2008Applicant: JOINT PRODUCTION TECHNOLOGY, INC.Inventors: John R. Wirtanen, Robert B. Peuterbaugh
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Patent number: 7424773Abstract: An eyeglass lens processing apparatus includes: a hole forming portion that includes a hole forming tool which forms a hole for attaching a rimless frame in an eyeglass lens; and breakage detector that detects whether or not the hole forming tool is broken.Type: GrantFiled: August 31, 2005Date of Patent: September 16, 2008Assignee: Nidek Co., Ltd.Inventors: Hirokatsu Obayashi, Motoshi Tanaka
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Publication number: 20080193242Abstract: The invention concerns a device (10) for machining slab-shaped or cylindrical workpieces (70) which are provided with cutting teeth (S), with a machine base (12), a machining device (14) which can be displaced relative to the machine base (12), and a workpiece positioning device (16) which can be displaced relative to the machine base (12), the machining device (14) including a machining bridge (18) which can be displaced relative to the machine base (12) linearly along a first spatial axis (Y1) and a machining arm (20) which can be displaced relative to the machining bridge (18) linearly along a second spatial axis (X1), a machining unit (26) with a machining tool (28) being carried on the machining arm (20) so that it can swivel around a swivelling axis (E1), the swivelling axis (E1) substantially running orthogonally to a plane which is spanned by the first and second spatial axes (Y1, X1), the workpiece positioning device (16) also having a bearing slide (32) which can be displaced relative to the machineType: ApplicationFiled: April 25, 2006Publication date: August 14, 2008Inventors: Stefan Brand, Peter Bailer, Norbert Bailer, Siegfried Veil
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Patent number: 7390152Abstract: A milling head particularly useful for cutting sharp interior corners in a workpiece, includes a rotary shaft coupleable to the rotary drive of a milling machine so as to be rotatable about the shaft longitudinal axis; and a conical cutter member coupled to the rotary shaft so as to be rotated thereby about a rotary axis at an angle with respect to the shaft longitudinal axis. Preferably, the conical cutter member defines a cone angle of 70 degrees, and its rotary axis is 55 degrees with respect to the longitudinal axis of the shaft. The conical cutter member is disposed within a case and is aligned with an opening in the case, such that the external surface of the case, engageable with the workpiece, is effective to align the conical cutter member with respect to the surface of the workpiece to be milled, and to enable the conical cutter member to cut sharp internal corners in all three dimensions.Type: GrantFiled: February 10, 2006Date of Patent: June 24, 2008Assignees: G.R.G. Patents Ltd.Inventors: Gershon Harif, Josef Gurievich
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Patent number: 7384224Abstract: A multi-axis machine tool presents a gantry positioned over a bed equipped with a machining station in which to position a workpiece, a moving beam associated slidably with the gantry, aligned on a horizontal direction and translatable in a vertical direction, a carriage associated slidably with the moving beam and traversable in the horizontal direction, and a tool holder mounted to the carriage. The tool holder is mounted direct to the carriage, making no use of quills or telescopic arms, with freedom to rotate relative to the carriage about two positioning axes.Type: GrantFiled: June 29, 2007Date of Patent: June 10, 2008Assignee: JOBS S.p.A.Inventor: Maurizio Stefano Ferrari
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Patent number: 7354227Abstract: A production line for carrying out machining and cleaning operations on rectangular frameworks, is provided. Elongate plastic frame members are welded together in a welding machine, thereby forming two rectangular frameworks located one above the other. These are moved to a framework processing machine along separate predetermined paths with the first path being located above the second path. The paths are provided by horizontally extending guide arrangements on the machine which has a power tool for carrying out machining operations, this tool being supported by a transporting mechanism capable of moving the tool both horizontally and vertically. Machining steps are carried out on the two frame works while they are held one above the other. The frameworks are moved to a weld cleaning machine along respective upper and lower paths for further processing operations.Type: GrantFiled: May 20, 2004Date of Patent: April 8, 2008Assignee: Pro-Line Automation Systems Ltd.Inventors: Vinode Ramnauth, Leon Gimelshtein
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Patent number: 7343656Abstract: A CNC machine for automatically re-indexing and machining multiple faces of a workpiece includes a traditional three-axis CNC machine and a gripper tool. A bar stock defining a first and at least a second workpiece is loaded within a first and a second vice on the table such that the first workpiece is disposed within the first vice and at least a portion of the second workpiece is disposed within the first and the second workpiece. The CNC machine machines the first face of the workpiece within the first vice. Next, the CNC machine grasps the first workpiece using the gripper tool removably disposed within the spindle. The first workpiece is re-indexed and is loaded into a third vice disposed on the table and the next face of the first workpiece is machined. A support rack is preferably used to support a portion of the bar stock overhanging the table.Type: GrantFiled: March 5, 2004Date of Patent: March 18, 2008Assignee: George Gordon Associates, Inc.Inventors: Donald R. Belanger, David M. Lorenzo, Ronald L. Downing
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Patent number: 7334313Abstract: Numeric control bore for boring an eyeglass lens and corresponding method. The bore comprises a bedplate (1), attachment device (3) for the lens (5), rotation device (9) for the lens (5) according to a first axis (7) (first degree of freedom), and a support column (11) with a head (15), wherein the attachment device (3) and the support column (11) can be moved between each other (second degree of freedom). The support column (11) has a first end linked to the bedplate (1) being capable of rotating about a second end (third degree of freedom) and the head (15) is linked to the column (11) by translation structure (fourth degree of freedom). The apparatus only has these four degrees of freedom in order to fix the relative position between the head (15) and the lens (5).Type: GrantFiled: April 19, 2005Date of Patent: February 26, 2008Assignee: Indo Internacional, S.A.Inventors: Santiago Albert Seseña, Sergio Fructuoso González, Carlos Pérez Ribera
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Patent number: 7334304Abstract: In order to improve a machine tool for machining a workpiece by a relative movement between the workpiece and a tool, comprising a first receiving device for the workpiece or the tool, a compound slide system with a second receiving device for the tool or the workpiece and comprising a drive device for moving the second receiving device in relation to the first receiving device, which drive device acts at at least two spaced-apart points of application by at least three drive struts extending parallel to at least two different directions and each with a pivot joint, and with which drive device the at least two points of application can be positioned by means of the at least three drive struts, in such a way that exact positioning of the second slide element can be achieved by structural measures, it is proposed that four drive struts of invariant length, each with a pivot joint, act on the slide element, each of which struts is pivotally connected to a guiding slide, which is guided in a linearly movable mannType: GrantFiled: August 23, 2006Date of Patent: February 26, 2008Assignee: Index-Werke GmbH & Co. KG Hahn TesskyInventor: Walter Grossmann
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Patent number: 7331740Abstract: An apparatus having a mounting body, a support having a first end and a second end. The first end of the support being pivotally secured to the mounting body for pivotal movement about a substantially horizontal primary pivot axis. A rail grooming head mounted to the second end of the support.Type: GrantFiled: February 15, 2007Date of Patent: February 19, 2008Inventor: David S. Fenton
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Patent number: 7318693Abstract: The invention relates to a device for machining workpieces, especially for chip removing machining. The device includes a spindle which is mounted on a first end of a pivoting arm in such a way that it can be linearly displaced in a direction parallel to the rotation axis of the spindle, and a console on which the pivoting arm is mounted by its second end in such a way that it can rotate about an axis parallel to the rotation axis of the spindle. The console can be displaced in a direction which is perpendicular to the displacement direction of the spindle in all of the pivoting positions of the pivoting arm.Type: GrantFiled: May 21, 2003Date of Patent: January 15, 2008Assignee: Alfing Kessler Sondermaschinen GmbHInventors: Stefan Hansch, Peter Bielitza
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Publication number: 20080003073Abstract: A multi-axis machine tool presents a gantry positioned over a bed equipped with a machining station in which to position a workpiece, a moving beam associated slidably with the gantry, aligned on a horizontal direction and translatable in a vertical direction, a carriage associated slidably with the moving beam and traversable in the horizontal direction, and a tool holder mounted to the carriage. The tool holder is mounted direct to the carriage, making no use of quills or telescopic arms, with freedom to rotate relative to the carriage about two positioning axes.Type: ApplicationFiled: June 29, 2007Publication date: January 3, 2008Inventor: Maurizio Stefano Ferrari
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Patent number: 7293340Abstract: This invention discloses a direct drive spindle assembly including a main fork formed by a base and a parallel pair of spaced fork arms and rotated about a first rotational axis. Moreover, the direct drive spindle assembly includes a first drive established by a hollow housing, a first motor stator and a first motor rotor, wherein the first motor rotor coupled with the base of the main fork drives the main fork to rotate about the first rotational axis. Furthermore, the direct drive spindle assembly includes a second drive contained in a room between the fork arms of the main fork and established by a second motor stator concentric with a second rotational axis, a second motor rotor and a rotor transmission ring, wherein the second rotational axis is perpendicular to the first rotational axis and the second motor stator is coupled with the fork arms of the main fork. In addition, the direct drive spindle assembly includes a spindle box having an orthogonal cross structure.Type: GrantFiled: March 15, 2007Date of Patent: November 13, 2007Assignee: Roundtop Machinery Industries Co., LtdInventors: Hsiang-Yuan Tsao, Chun-Chieh Lin
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Publication number: 20070248428Abstract: In a three degrees of freedom parallel mechanism, a spindle head is carried by first and second movable support members to be movable along a Z-axis and to be pivotable along each of A and B-axes. The spindle head is jointed through three rods to drive sliders which are movable along three parallel linear guides secured stationarily. For jointing, there are employed spherical joints and universal joints. Kinematic parameters used in converting each command position of the movable body to target operational positions for three actuators of the Z, A and B-axes are compensated based on inversely converted command positions and inversely converted actually measured positions which have been gathered with the spindle head being located at positions of a suitable number, so that the kinematic parameters can be updated to those newest.Type: ApplicationFiled: March 19, 2007Publication date: October 25, 2007Applicant: JTEKT CorporationInventor: Hiromichi Ota
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Patent number: 7281306Abstract: A machine tool includes a tool spindle head for supporting a first side of a hob via an arbor, a turret, and a tool supporting unit including a movable section and a fixed section. The fixed section is fixedly mounted to the turret and slidably supporting the movable section. The movable section includes a support member for rotatably supporting a second side of the hob. The movable section further includes a first holding member holding the support member rotatably, second holding members holding the first holding member rotatably about an axis which extends perpendicularly to the rotation axis of the support member, and a slide member provided along the second holding members and fitted to a slide guide formed at the fixed section. When the tool supporting unit is positioned at a predetermined tool holding position, the movable section is capable of advancing and retreating in the Y-axis direction.Type: GrantFiled: March 9, 2005Date of Patent: October 16, 2007Assignee: Mori Seiki Co., Ltd.Inventor: Toshio Ueda
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Patent number: 7261502Abstract: Described herein is a nNumeric-control machine (1) comprising: a flatbed (2) provided with a horizontal working surface (3), on which a workpiece (4) is to be positioned; a machining head (5) which is able to move in space above the working surface (3), and a supporting structure (6), which is designed to support and displace the machining head (5) in space above the working surface (3), the supporting structure (6) consisting of: a floating platform (7) mounted so that it can move above the working surface (3), a series of articulated supporting arms (8) designed to support the floating platform (7) above the working surface (3) on opposite sides of the platform itself, and members for moving (13, 14) capable of displacing upon command and independently the articulated arms (8), each articulated arm (8) being designed to connect the flatbed (2) of the machine with the overlying floating platform (7).Type: GrantFiled: June 30, 2004Date of Patent: August 28, 2007Assignee: O.M.V. Officine Meccaniche Venete S.r.l.Inventor: Franco Pasquetto
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Patent number: 7261503Abstract: In a multi-axis machine tool comprising a slide way aligned on a longitudinal axis, a traveling column coupled via one end with the slide way, an arm mounted slidably to the column and traversable at least in a first direction normal to the longitudinal axis of the slide way, and a machining head carried by the arm, the material used for the arm is one typified by low thermal expansion.Type: GrantFiled: January 17, 2006Date of Patent: August 28, 2007Assignee: JOBS S.p.A.Inventors: Stefano Motta, Sandro Foletti
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Patent number: 7185412Abstract: A multi-axis, computerized numerically-controlled (CNC) toolhead positioning device with six degrees of freedom of movement while utilizing only five axes of movement, comprising a rotating workpiece mount assembly (28) and a rotating gantry (64) with a mounted toolhead assembly base (80). Perpendicular rotational axes about a mounted workpiece (26) provide the capability to perform specific toolhead operations on the arcuate surface of the workpiece (26), subject to the type of mounted toolhead assembly. The computer (120) uses CNC software to integrate operator instructions, machining operations, and the sequence of operations into an automatic and coherent machining package.Type: GrantFiled: May 2, 2005Date of Patent: March 6, 2007Assignee: Precision Spherical Corp.Inventors: William Arthur Penick, Robert Allen Fomey
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Patent number: 7182557Abstract: An apparatus having a mounting body, a support having a first end and a second end. The first end of the support being pivotally secured to the mounting body for pivotal movement about a substantially horizontal primary pivot axis. A rail grooming head mounted to the second end of the support.Type: GrantFiled: November 16, 2005Date of Patent: February 27, 2007Inventor: David S. Fenton
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Patent number: 7137763Abstract: A pneumatically driven deburring device having a housing and a pneumatic motor mounted therein which is adapted to receive and drive a deburring tool. A pivot bearing is mounted within the housing adjacent the pneumatic motor. A motor support is held within the pivot bearing and extends therefrom where the motor support connects to the pneumatic motor. An air inlet is disposed adjacent the pivot bearing and is communicatively connected thereto. Air for driving the pneumatic motor is directed through the air inlet, and through a hollow portion of the motor support to where air is directed into the pneumatic motor. Because the motor support is supported or contained within the pivot bearing, it follows that the motor support articulates with the pivot bearing and hence the pneumatic motor moves with the articulating motor support.Type: GrantFiled: August 12, 2004Date of Patent: November 21, 2006Assignee: ATI Industrial Automation, Inc.Inventor: Douglas K. Lawson
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Patent number: 7134173Abstract: A spindle head for a universal milling machine having a housing rotatably mounted on a machine part and a work spindle mounted axially parallel in the housing. A second spindle unit adjustable about two axes is disposed on the rear side of the housing.Type: GrantFiled: March 11, 2003Date of Patent: November 14, 2006Assignee: Deckel Maho Pfronten GmbHInventors: Walter Gstir, Peter Haas
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Patent number: 7128506Abstract: A toolhead intended for a multi-axis machine tool incorporates a tool-holder rotatable about the tool axis and attached to the spindle of a spindlehead, also a stop cage element mounted slidably to the tool-holder, which is furnished with a collar presenting an active surface set transversely to the tool axis and offered to the surface of a workpiece. The stop cage element alternates between a first operating position in which the active surface of the collar is located forward of a countersink portion presented by the tool, considered in relation to the feed direction of the spindlehead as it approaches the surface of the work, and a second operating position in which the countersink portion will be located forward of the active surface, at least in part. The axial position of the stop cage element relative to the tool-holder is monitored continuously by a sensing system.Type: GrantFiled: January 5, 2004Date of Patent: October 31, 2006Assignee: Jobs S.p.A.Inventors: Maurizio Ferrari, Bruno Schiavi
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Patent number: 7097399Abstract: A cutting machine includes linear electrical actuation for controlling linear reciprocating movement of a spindle and cutting tool. The cutting machine is suited for gear shaping cutting operations and the like. Linear electrical actuation may be used to control position of a hydraulic valve within the spindle, which controls hydraulic actuation and linear movement of the spindle. Linear electrical actuation may also be used to pivot the spindle to relieve the cutting and/or during the cutting stroke for gear crowning operations. A rotary actuator is also disclosed as incorporated into the pivoting saddle of such a cutting machine.Type: GrantFiled: August 20, 2004Date of Patent: August 29, 2006Assignee: Bourn & Koch, Inc.Inventors: Bob Winfough, Loyd L. Koch, Wayne Densmore
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Patent number: 7093334Abstract: A machining unit has a spindle-carrier structure, which can be oriented around a vertical axis.Type: GrantFiled: August 11, 2004Date of Patent: August 22, 2006Assignee: Comau SPAInventor: Marco Sobrito
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Patent number: 7083368Abstract: A machine having X- and Y-axis linear moving axes and a pivot axis B for rotationally pivoting a pivot member having a tool arranged at a distal end thereof about an axis parallel to a Z axis is controlled. A moving command obtained by a command program commanded by a position expressed by X, Y, and Z in a three-dimensional orthogonal coordinate system is subjected to an interpolation process to calculate amounts of interpolation movement (?X, ?Y, and ?Z) of the respective orthogonal axes. An amount of rotation ?? of the pivot axis required for moving the tool by the amount of movement ?Y in the Y-axis direction is calculated. An amount of correction movement ?x for canceling the movement in the X-axis direction caused by the rotation ?? of the pivot axis B is calculated. Values (?X+?x), ??, and ?Z are outputted to the X axis, the pivot axis B, and the Z axis, respectively.Type: GrantFiled: August 19, 2004Date of Patent: August 1, 2006Assignee: Fanuc LTDInventors: Tomomi Nakazato, Hitoshi Matsuura
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Patent number: 7037052Abstract: A column (4) is provided with a hanging jig (holding mechanism) (50) for holding an unclamping apparatus (30) and a spindle head (15) is made to be able to move in an up and down direction by itself by removing a bolt (43) in a state of hanging to hold the unclamping apparatus (30) by the hanging jig (50).Type: GrantFiled: August 7, 2003Date of Patent: May 2, 2006Assignee: Mori Seiki Co., Ltd.Inventor: Tatsuya Yamamoto