Including Tool-holding Clamp And Clamp Actuator Patents (Class 408/197)
  • Patent number: 11253930
    Abstract: Tool system 1 comprising a tool holder 2 that has an insert seat 17 for receiving a cutting insert 6, and comprising a clamping element 4 that has an opening 26 for receiving a clamping means 15, an interface 30 being arranged between the tool holder 2 and the clamping element 4, and channels for the purpose of cooling by means of a fluid being arranged in the tool holder 2 and the clamping element 4, and a sealing means 31 being arranged in the region of the interface 30.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: February 22, 2022
    Assignee: CERAMTEC GMBH
    Inventors: Uwe Henzler, Michael Nitsche
  • Patent number: 9308587
    Abstract: A cutting tool for boring including a cutting insert fixed at a front end of a bar-shaped holder. The holder includes a cutting surface-sided chip pocket that is concave with respect to the outer circumferential surface of the holder, the cutting edge end of the cutting insert protruding from the outer circumferential surface of the holder, and the cutting surface-sided chip pocket having a bottom surface facing the portion of outer circumferential surface where the cutting edge overhangs. Further, an cutting edge-sided chip pocket is formed at the portion of outer circumferential surface where the cutting edge overhangs such that the edge of the portion of outer circumferential surface where the cutting edge overhangs is concave with respect to the outer circumferential surface of the holder, on the bottom of the cutting surface-sided chip pocket when viewed from the cutting surface.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 12, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Shusuke Kitagawa, Kenji Isobe
  • Patent number: 8840344
    Abstract: An adjustable hole cutter for cutting a hole with a predetermined diameter in sheet or panel material includes a blade holder that moves along a track or slot to alter a diameter of the cut hole; a blade arc adjuster coupled to the blade holder; and one or more replaceable blade segments coupled to the blade holder.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 23, 2014
    Inventor: Bruce Winter Stenman
  • Publication number: 20140193219
    Abstract: A rotary cutting tool, in particular a drill or milling cutter for heavy-duty cutting applications, is provided, said rotary cutting tool having at least one cutting edge and a shank having a free end. The shank has in its circumferential surface a groove for receiving a pull-out prevention element, wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end. Also provided is a tool unit for a rotary cutting tool.
    Type: Application
    Filed: December 28, 2013
    Publication date: July 10, 2014
    Applicant: Kennametal Inc.
    Inventor: Josef K. Herud
  • Patent number: 8747034
    Abstract: The boring head has a tool body (2, 38), to which two cutter holders (3, 4; 22, 23) arranged offset from one another by 180° are fastened. The cutter holders (3, 4; 22, 23) are mounted on a clamping surface (11, 26) in a slidable manner for radially adjusting the cutters (5). The clamping surface (11, 26) has a first partial clamping surface (11a, 26a) for the one cutter holder (3, 4; 22, 23) and a second partial clamping surface (11b, 26b) for the other cutter holder (3, 4; 22, 23). These two partial clamping surfaces (11a, 11b; 26a, 26b) are offset in the axial direction by a certain extent. The two cutter holders (3, 4; 22, 23) have different heights with respect to the cutters (5) in accordance with this extent and in addition can be optionally fastened to and radially adjusted on the first partial clamping surface (11a, 26a) or the second partial clamping surface (11b, 26b). The boring head permits the conventional roughing work and is especially stable while being produced at a low cost.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 10, 2014
    Assignee: Heinz Kaiser AG
    Inventors: Rudolf Stadelmann, Gottlieb Abderhalden, Ralph Stadelmann
  • Publication number: 20140017020
    Abstract: The disclosure relates to a die stock comprising: an annular holder having a plurality of receiving grooves; a plurality of cutting inserts; and one fixture per cutting insert for axially fixing the respective cutting insert in one of the plurality of receiving grooves. The plurality of receiving grooves are provided on an inner periphery of the annular holder and run in an axial direction parallel to a central longitudinal axis of the annular holder. Each of the plurality of receiving grooves has a receiving groove profile for receiving one of the plurality of cutting inserts. Each cutting insert is received within a respective one of the receiving grooves and comprises at least one cutting edge that is arranged on a cutting surface that faces toward the central longitudinal axis of the annular holder, wherein each cutting insert comprises a holding profile that is arranged on a holding surface opposite the cutting surface.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 16, 2014
    Inventor: MATTHIAS LUIK
  • Patent number: 8413548
    Abstract: A grasping device comprising a grasping assembly coupled to a shaft adapted to fit into a drill chuck is described. Embodiments of the grasping device are capable of grasping objects such as a screw head, a bolt head, a hex nut, a wing nut, a hook, or other irregularly shaped objects, so that such objects can be turned by an electric drill, lathe, or similar machine tool.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: April 9, 2013
    Inventors: Debbie Redmond, Charlie Redmond
  • Patent number: 8079787
    Abstract: A hole saw includes an arbor, a saw blade assembly having a saw blade and an adapter connected with the saw blade and provided with a protrusion received in an indentation of the arbor, a lid movably mounted on a body portion of the arbor and movable relative to the arbor between a first position where second coupling portions of the adapter are blocked by a block portion of the lid and coupled to first coupling portions of the arbor such that the saw blade assembly can't be rotatable relative to the arbor, and a second position where the second coupling portions of the adapter are staggered with the block portion and uncoupled from the first coupling portions of the arbor through the rotation of the saw blade assembly. Thus, the hole saw has the advantages of reducing vibration in use and convenience in assembly and disassembly works.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: December 20, 2011
    Assignee: K & W Tools Co., Ltd.
    Inventor: Walley Chao
  • Patent number: 7811033
    Abstract: A non-pneumatic system for use with a workpiece is described. A clamp assembly having a clamp pad is secured to the cabinet. An electrically operated tool is movably secured to the cabinet. The tool has a remote switch which when activated in turn activates the tool. A lever (e.g., a handle) is operatively coupled to the clamp assembly and the tool. When the lever is manually moved, the remote switch is activated and the clamp pad moves towards the work surface. Preferably, the tool also moves towards the work surface opening by manually moving the lever. For example, the tool utilized in this non-pneumatic system may be a drill or saw.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: October 12, 2010
    Assignee: Allen IP, Incorporated
    Inventors: Craig A. Sommerfeld, Scott L. Clark
  • Patent number: 7641424
    Abstract: A non-pneumatic clamp and drilling system with a cabinet having a work surface with a drill bit opening. A fence rests on the work surface to guide a side surface of a workpiece. A clamp is secured to the cabinet. The clamp includes clamp pad positioned above the work surface. A drill with a collet is movably secured to the cabinet beneath and at an acute angle to the work surface. The collet can hold a drill bit such that the longitudinal axis of the drill bit is parallel to the acute angle. A handle is operatively coupled to the clamp and the drill to simultaneously move the drill collet along the longitudinal axis and move the clamp pad. By manually moving the handle, the workpiece can be secured by the clamp pad and fence when the drill collet moves toward the drill bit opening in the work surface.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: January 5, 2010
    Assignee: Allen IP, Incorporated
    Inventors: Craig A. Sommerfeld, Scott L. Clark
  • Patent number: 7585139
    Abstract: The boring tool has a tool body (2) on which a tool carrier (10) is mounted in a radially adjustable manner. A setting member (42) serves to set the boring diameter. A drive mechanism converts a rotation of the setting member (42) into a displacement of the tool carrier (10). The drive mechanism has a differential spindle (13) which converts a rotation of a graduated disk (26) into a displacement of the tool carrier (10) for the fine setting of the boring diameter. The differential spindle (13) is mounted in a bore (51) of the tool carrier (10) and extends at right angles to the rotation axis (A).
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: September 8, 2009
    Assignee: Heinz Kaiser AG
    Inventors: Rudolf Stadelmann, Ralph Stadelmann, Ernst Hänggi
  • Publication number: 20090038450
    Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Inventors: Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
  • Publication number: 20080112768
    Abstract: A tool-in-tool device driven by a single power spindle performs multiple operations on a workpiece. The device includes a first tool holder for holding a tool such as a drill, and a second tool holder surrounding mounted on the first tool holder. The second tool holder may hold a second tool such as clamp for clamping the drill to the workpiece, a guide bushing for guiding the drill and a chip breaker for breaking workpiece chips generated by a drilling operation. Multiple interchangeable bushings allow matching the bushing to the size of the drill.
    Type: Application
    Filed: June 28, 2007
    Publication date: May 15, 2008
    Inventors: Mike P. Matlack, Kurt A. Burton
  • Patent number: 7156588
    Abstract: A cutting head for a rotating cutting tool for metal cutting operations. The cutting head has an axially adjustable cartridge which is an integral single piece. A slit divides the cartridge into a clamping portion and a main body portion, the clamping portion being resiliently connected to the main body portion. An insert pocket for retaining a cutting insert is formed by a widening of the slit so that the cutting insert is securely retained in the insert pocket between the main body portion and the clamping portion.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: January 2, 2007
    Assignee: Iscar Ltd.
    Inventors: Moshe Elbaz, Henri Shahin
  • Patent number: 7140616
    Abstract: The invention relates to a sealing device which is provided with an annular circumferential groove in a preceding sealing washer and having a sealing body disposed in the groove. The width and depth of the groove are larger than the cross-section of the sealing body so that the sealing body can be axially moved in the groove and may be forced against the wall of the groove and the tool shank by inner pressure provided, for example, by a coolant.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: November 28, 2006
    Assignee: Rego-Fix AG
    Inventor: Ernst Gerber
  • Patent number: 7031802
    Abstract: A method for semi-autonomous operation of a robotic device in a room. In the method, one or more goal points are set and the distances between the robotic device and the one or more goal points are determined. A first one of the one or more goal points is selected and the robotic device is maneuvered to travel to the first one of the one or more goal points.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: April 18, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cullen E. Bash, Chandrakant D. Patel, Ratnesh K. Sharma
  • Patent number: 6843621
    Abstract: A tapered reamer is disclosed. The reamer is used to make a tapered opening in a cylinder used in a crossing gate repair kit. A straight reamer is also disclosed.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: January 18, 2005
    Inventor: Wayne Board Burnette
  • Patent number: 6533506
    Abstract: A hollow milling tool which is adjustable through a wide range of cutting diameters while maintaining a constant radial rake angle, constant axial rake angle, constant axial clearance angle, and a constant radial clearance angle. The tool includes at least one slot, and preferably three or more slots, disposed at a negative axial rake angle with respect to the centerline of the tool for receiving and mounting a cutting member. Each slot intersects the front axial face of the tool at a location ahead of a plane including the centerline of the tool. A cutting member is a holder for a formed carbide cutter insert. The insert is mounted in the holder such that the forward face of the insert forms an angle with the forward surface of the insert holder which is at least equal and opposite to the negative axial rake angle of the slot so that the face of the insert has either zero or positive axial rake.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: March 18, 2003
    Assignee: Genesee Manufacturing Company, Inc
    Inventor: Kevin E. Hite
  • Patent number: 6254319
    Abstract: The invention relates to a friction and sinking cutting tool comprising a base member (2) to which a cutting blade (20) is exchangeably clampingly fixed by means of a clamping screw and which is adjustable in terms of its radial position by an adjusting member (40) through the intermediary of an adjusting means (30). The adjusting means (30) is a cutting blade carrier extending into a recess in the base member, and the adjusting member (40) is a differential screw which is in threaded engagement with the adjusting means. Alternatively, the adjusting means (30) can be a cutting blade carrier extending into a recess of the base member and the adjusting member (40) can be a ball member or clamping member which has automatic shape fitting engagement with a complementary recess in the adjusting means such that a movement of the adjustment member causes a movement of the cutting blade (20) in the same direction.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: July 3, 2001
    Inventors: Andreas Maier, Wilfried Eble
  • Patent number: 6183174
    Abstract: On a tool body at least one bit carrier is mounted capable of sliding. Clamping means are provided for clamping the bit carrier against a clamp plate of the tool body. A catch plate of the tool body operates with a corresponding catch plate of the bit carrier for transmission of torque. The tool body at a distance from its catch plate has a slanted outer wedge surface against which the a slanted wedge surface of the bit carrier is clamped. The wedge surface of the tool body exerts a radial clamping force on the bit carrier which clamps the catch plate surface of the bit carrier radially against the catch plate surface of the tool body.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: February 6, 2001
    Assignee: Heinz Kaiser AG
    Inventors: Heinz Kaiser, Deiter Pape
  • Patent number: 5961259
    Abstract: A rotatable machine tool such as a precision boring tool has a head (2) that is detachably mounted on a shank type driving element (3). The head carries a removable cutting tip (9) and includes a bearing point (8) that wedgingly seats within a transverse slideway (7) in driving element (3). A slide (11), which is mounted in through bore (20) in head (2), has a male member (10) attached thereto which passes through a slot (24) extending between the bore (20) and an end face (19) of the head (2). Male member (10) is received within a bore (12) in driving element (3). A clamping screw (13) in drive element (3) interacts with male member (10) to cam it inwardly thereby clamping head (2) in position on drive element (3). The head (2) is transversely adjustable within slideway (7) by loosening screw (13) and adjusting opposed screws (32, 33) in head (2) which act on male member (10).
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: October 5, 1999
    Inventor: Karl Ziegler
  • Patent number: 5906458
    Abstract: An adjustable reamer includes a securing portion, a shank, a guide members, at least one cutting insert, an adjustment device for adjusting the insert, and a clamp for clamping the insert. The clamp is releasable from the shank. A first place of contact is created between the clamp and the shank, and a second place of contact is created between the clamp and the cutting insert. An angle between the first and second places of contact in relation to the rotational axis of the reamer is at least, preferably larger than
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: May 25, 1999
    Assignee: Seco Tools AB
    Inventor: Simon Planche
  • Patent number: 5810518
    Abstract: A metal cutting insert is directly mounted on a support surface formed either by an insert holder, or by a shim interposed between the insert and insert holder. The insert includes a bottom surface having grooves and planar surface portions disposed between the grooves. The support surface includes ribs which fit into respective grooves of the insert. Some of the planar surface portions of the insert bear against a planar, rib-free portion of the support surface.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: September 22, 1998
    Assignee: Sandvik AB
    Inventors: Jorgen Wiman, Lennart Bystrom
  • Patent number: 5769577
    Abstract: An improvement to the art of interchangeable spinning machine tool holders has a horizontal disengagement mechanism. A dove tail assembly is used on a spinning receiver and a drilling tool holder combination. In operation a drill press can remain in position above a workpiece. Then the dove tail can be loosened and the drilling tool holder exchanged with another. When the dove tail is tightened the new drilling tool holder is in the proper machining position.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: June 23, 1998
    Assignee: Lawrence O. Boddy
    Inventor: Lawrence O. Boddy
  • Patent number: 5330297
    Abstract: A boring tool comprises a body having, at a free end thereof, two insert holders which are radially adjustable by displacement relative to a groove defined by two opposing boundary surfaces and accommodating two elongate guide lugs on the insert holders. The groove merges, at opposite, parallel edges, into first support surfaces, which are each inclined relative to the tool axis, in a preferred embodiment in a rearward-outward direction from the edge so as to form an acute-angled wedge-shaped portion of material between each of the first support surfaces and a respective groove-defining surface. The support surfaces are each adapted to cooperate with similar, second support surfaces on the holders, the other support surfaces are similarly inclined, more specifically relative to boundary surfaces of the guide lugs, at substantially the same acute angle as the angle between cooperating surfaces of the wedge-shaped portions of the tool body.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: July 19, 1994
    Assignee: Sandvik AB
    Inventor: Sven Engstrand
  • Patent number: 5024566
    Abstract: A selective drill bit attachment for a standard portable electric drill is provided and includes a housing for carrying a plurality of different sized drill bits in which one of the drill bits can be selected and manually extended into an operable position so as to be used by a standard portable electric drill. In a modification a locking mechanism is utilized to hold the selective drill bit stationary to the housing.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: June 18, 1991
    Inventors: Guy F. Ippolito, George Spector
  • Patent number: 4954024
    Abstract: A precision boring tool for the machining of inner faces of bores with at least one cutting plate, supported by a bracing claw, is disclosed. The cutting plate (2) is tilted versus the plane running through the cutting edge (11) of the cutting plate (2) and the longitudinal axis (17) of the precision boring tool (1). Thus, the bracing claw (3) can be disposed such that it does not protrude into the chip space (4).
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: September 4, 1990
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Haberle
  • Patent number: 4850757
    Abstract: A rotary cutting tool including an elongated generally cylindrical holder having a recess into which is fitted a disposable cutting insert. The insert is held in place by a clamping member which bears against a surface of the insert and which is attached to the holder by a clamping screw. Radial adjustment of the insert can be effected by adjusting screws which have camming surfaces which bear against a corresponding camming surface of the insert. In axial cross section, the axis of each adjustment screw is parallel to the axis of the clamping screw and to a horizontal axis of the holder, and an axis of the insert is at an angle relative to a vertical axis of the holder.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: July 25, 1989
    Assignee: GTE Valenite Corporation
    Inventor: Daniel R. Stashko
  • Patent number: 4820091
    Abstract: A rotary cutting tool and method for use of the cutting tool for forming complementary wavy joint surfaces in the edges of panels to be mounted in adjacent relationship to each other such as panels of sheet material used for counters, sink tops, stove tops, wall panels and the like. The uniform wave form cutting edge of the cutting tool is used to form complemetary wavy surfaces in adjacent adjoining surfaces so that a single tool can form both of the edges to be joined with the resultant edges guiding the planar surfaces of the panels into alignment with each other.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: April 11, 1989
    Inventor: John T. Koski
  • Patent number: 4770571
    Abstract: A drill comprises a holder (1) and a cutting member in the form of a pair of discs (2,3). Each disc (2,3) has at least five facets (11,12) arranged along its periphery and symmetrically with respect to its center line (13, 14), the discs (2, 3) being mounted in such a manner that angles (.phi.) of inclination of their facets (11, 12) with respect to an axis (4) of the holder (1) are equal to one another.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: September 13, 1988
    Inventor: Gennady Y. Potemkin
  • Patent number: 4710073
    Abstract: The present invention is directed to a boring head tool apparatus. A new method of making the tool as well as structure which allows use of the indicated method and leads to several advantages combine to overcome problems of the art to increase boring accuracy to at least 0.0001 inch. The tool includes a slide which is moved with respect to the body of a primary member using a differential screw technique. The differential screw is located within the dovetail, while the tensioning screw is located beneath the dovetail.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: December 1, 1987
    Assignee: Infinity Boring Tool Company
    Inventor: Richard L. Peterson
  • Patent number: 4662254
    Abstract: Quick change cutting tool block clamp wherein planar mounting faces of adapter base and tool holder faces are located and retained in compressive engagement through linear interengagement of transverse semi-dovetail key surfaces under pressure established by a spaced pivoted clamping dog mechanism spanning the engagement faces. Clamping retention is entirely accomplished by means immediately adjacent the interface of the planar surfaces leaving the outer surfaces of the tool holder open and free of clamp actuating projections.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 5, 1987
    Assignee: GTE Valeron Corporation
    Inventors: Kenneth G. Noggle, Lee Reiterman
  • Patent number: 4632609
    Abstract: To achieve reliable fastening of a toothed cutter carrier on the toothed bearing surface of a tool body, and to achieve favorable force ratios, in a rotary cutting tool, in particular a drilling head, the tooth formation of the bearing surface is constructed in a sawtooth shape with steep tooth flanks and inclined tooth flanks, the steep tooth flanks being disposed substantially on that side of the teeth which is orientated towards the cutting element of the cutter carrier. The tooth formation on the cutter carrier is constructed so that it is substantially similar to the tooth formation of the bearing surface for interengagement therewith.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: December 30, 1986
    Assignee: J. Kuhn GmbH & Co. Prazisionswerkzeug K.G.
    Inventor: Frank Johne
  • Patent number: 4621958
    Abstract: A boring block and tool holder is disclosed having an opening therein. The block is made of a thick rectangular plate having inserts set into its front corners and inclined surfaces adjacent its rear edge forming a noncircular tang part having two rearwardly facing shoulders adjacent the tang portion which is received in a slot in a boring bar. The shape of the slot is complimentary to the shape of the tang part of the block. A tapered hole through the tang aligns with a tapered hole in the boring bar and the tapered hole in the block receives a taper pin which forces the block rearward bringing the block into firm rigid relationship with the end of the bar thereby clamping the block in positive rigid relation to the bar. The block has more strength than previous blocks because the block is thicker below the cutting inserts and there is more metal below the cutting insert, yet it can use the same bar and same slot width as rectangular blocks.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: November 11, 1986
    Inventor: Harry R. Ewing
  • Patent number: 4595320
    Abstract: The head of this boring tool carries two bit holders, which can be radially adjusted to different cutting widths by tooth systems provided on sloping faces of the head and/or bit holder. To ensure that there is still reciprocal supporting of the bit holders even in the outermost adjustment range thereof, cams are provided for extending the supporting surfaces. As an alternative to or in addition to this measure, the spacing between the front end face of the head and the surface of the bit holder parallel thereto is made so small that when high cutting forces occur these surfaces are supported on one another before the elastic deformation range of the bit holders is exceeded.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: June 17, 1986
    Assignee: Urma AG
    Inventors: Willy Berner, Hans Berger, Kurt Boller
  • Patent number: 4566828
    Abstract: A cutting tool is disclosed, particularly a ball track milling cutter, comprising a tool holder in which a turnover cutting disc is received that includes four cutting edges of circular arc segment shape. The cutting disc is received in a slot dividing the tool holder into two clamping jaws and is adapted to be clamped in position by a clamping screw which extends diametrically and passes through the cutting disc in the area of an opening. In addition to the clamping screw a thrust piece is provided to press the cutting disc with two cutting flanks axially against abutment faces at the bottom of the slot.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: January 28, 1986
    Assignee: Gottlieb Guhring
    Inventor: Josef Reinauer
  • Patent number: 4551044
    Abstract: In the radially adjustable tool head there is provided a radially adjustable slide serving to accommodate a cutting tool. The slide is arranged to slide on a spindle insert at guiding members containing guiding or guide surfaces which slide in pairs upon each other. To positively retain the slide on the spindle insert springs are arranged in such a manner and with a pre-bias such that the guiding surfaces are pressed against each other. Also, structure is provided to interrupt, when desired, the transmission of the pre-bias to the guiding surfaces.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: November 5, 1985
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG
    Inventor: Robert Schultschik
  • Patent number: 4547103
    Abstract: The boring tool has an insert upon which one or two boring heads are slidably guided along a swallowtail track. For fixing the boring heads in position, set screws are provided which are adapted to bear against the clamping surfaces of the insert. To preclude radial sliding of the boring heads, even when the set screws are only partially tightened, the clamping surfaces are inclined relative to the longitudinal axis of the insert, and the spacing of the clamping surfaces from the longitudinal axis increases toward the ends of the insert.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: October 15, 1985
    Assignee: Heinz Kaiser AG
    Inventors: Dieter Pape, Hans Woerz
  • Patent number: 4545711
    Abstract: A milling tool for cutting internally of a bore by means of replaceable bits. The tool comprises an elongate bar member an end portion of which includes a pair of axially outer portions which extend radially outwardly from a central portion and are disposed on respectively opposite sides of the rotational axis. A pair of clamping members are detachably attached to the bar member on respectively opposite sides of the rotational axis and have axially outer portions which together with the axially outer portions of the bar member form an axially outer surface of the tool. The axially outer portions of the bar member and the clamping members cooperate to form four slots in the tool axially outer surface for clamping engagement of radially extending bits.
    Type: Grant
    Filed: March 9, 1982
    Date of Patent: October 8, 1985
    Assignee: The Babcock & Wilcox Company
    Inventor: Jimmy B. Dooley
  • Patent number: 4533285
    Abstract: An attachment for use with a tool having a cutting surface on one end of a bar consists of a collar that has an opening corresponding substantially to the cross-sectional configuration of the bar and is frictionally supported thereon in any angular or axially-orientation. The collar has a support opening which receives a cutter insert that has its inner end supported on an abutment and is releasably retained within the support opening by a recessed fastener.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: August 6, 1985
    Assignee: Everede Tool Company
    Inventor: Charles A. Jorgensen
  • Patent number: 4507027
    Abstract: An adjustable boring head tool holder including a boring bar and a bar holder where securement of the boring bar to the bar holder is accomplished with a slot and key combination and a cam clamp. To add rigidity to the tool holder, a hold down clamp may be used which has a foot that fits over a flange of the bar and pulls the flange against the housing of the bar holder.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: March 26, 1985
    Inventors: Thomas Adamson, Armand J. Schmaltz
  • Patent number: 4486131
    Abstract: The turning tool has a disc-shaped base element 1 connectable to the spindle of a lathe and four toolholders 6, 7, each with one or more cutting plate supports 12, adjustable radially relative to the rotary axis (D-D), clampable with an adjusting screw 25, and carrying a cutting plate 23. The base element 1 has a housing bore parallel to the axis (D-D) of rotation to receive a cylindrical shank 5 of each toolholder 6 or 7. Each toolholder 6, 7 has an axial adjusting screw 14 screwable parallel to the rotary axis D-D. A pin 8 in the shank 5 cooperates with an axial groove 9 and is fixed by means of a screw 10 cooperating with a recess 11 in the pin 8 to clamp the shank 5 in the adjusted axial position. Different cutting plate supports 12a, 12b and 12c can be used to enable a variety of machining operations to be carried out.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: December 4, 1984
    Assignee: Komet Stahlhalter-und Werkzeugfabrik, Robert Breuning, GmbH
    Inventor: Otto Eckle
  • Patent number: 4437802
    Abstract: A boring tool having a detachable cutting blade, and, more particularly a gun drill for boring holes to extremely exacting tolerances.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: March 20, 1984
    Inventor: John J. Hall, Jr.
  • Patent number: 4423989
    Abstract: A machine tool assembly formed as a shaft member having a cutter head assembly at an end thereof includes a pair of juxtaposed jaws defining a slot therebetween within which there is received a rotatable cutting tool. A T-shaped insert provided in the slot defines abutment surfaces for supporting and guiding the rotatable cutting tool, the T-shaped insert having a projection engaging into a transverse groove formed on the periphery of the rotatable cutting tool and a leg engaging into an axial bore of the shaft member, the leg abutting against a round key member located within a radial bore and adjustably engaged by a screw.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: January 3, 1984
    Assignee: Mapal Fabrik fu/ r Pra/ zisionswerkzeuge Dr. Kress AG
    Inventors: Dieter Kress, Friedrich Ha/ berle
  • Patent number: 4382726
    Abstract: The invention relates to a boring tool for producing stepped bores. The boring tool comprises a shaft having at least one longitudinally extending dovetail groove which is adapted to receive one or more tool holders forming a trapezoidal prismatic block. Each tool holder has clamping means for adjustably fixing a tool holder in a dovetail groove and has a continuous bore extending between two parallel lateral surfaces thereof. A rod-like cutting plate holder fits displaceably into the bore and is adjustably locked by locking means in the tool holder. The cutting plate holder has clamping means adapted to hold a cutting plate. A radial distance of each of the cutting plates from the axis of the boring tool and the longitudinal positions of the cutting plates may be adjusted to the desired positions, so that a stepped bore can be formed in one drilling operation.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: May 10, 1983
    Assignee: Jud AG
    Inventor: Bruno Jud
  • Patent number: 4279550
    Abstract: The cutting head of a boring tool has a cylindrically arcuate face about the axis of rotation and a radially and axially open groove for release of cooling fluid and chip removal. A single cutting plate is releasably recessed in one wall of the groove and a clamping jaw in the other wall in abutting engagement with the blade whose edge has a primary cutting portion axially projecting from an end portion of the cutting head and a secondary cutting portion radially projecting from the arcuate carrier face.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: July 21, 1981
    Assignee: MAPAL Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Haberle
  • Patent number: 4247233
    Abstract: A micro-adjustable boring bar with an interchangeable head and cartridge utilizing a micro-adjustable key and a stationary key with an adjustment screw mounted independently on a boring bar, and a replaceable and interchangeable head having a recess for the adjustable key and a slot for the stationary key, the slots in both the boring bar and the head being open ended for easy machining.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: January 27, 1981
    Assignee: Fansteel Inc.
    Inventor: Rolf H. Kraemer
  • Patent number: 4240770
    Abstract: A floating knife of a boring tool for machining the inner surfaces of cylinders, has a cutter member and a support element arranged on both sides of the floating knife. The support elements are arranged for cooperation with the respective cutter member. The support elements are arranged behind the cutter member as viewed in the feed advance direction. The support surface of the support element is spaced behind the cutter member in the floating direction of the floating knife by a spacing corresponding to the extent of the allowable yielding of the cutter member in the radial direction, whereby the cutter member is able to machine the inner surface of a cylinder even if the latter has cross-apertures in its wall because the support member limits the radial floating of the knife to a safe extent.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: December 23, 1980
    Assignee: W. Hegenscheidt Gesellschaft mbH
    Inventor: Garrj Berstein
  • Patent number: 4229128
    Abstract: An adjustable boring bar with a boring head which can be locked, released, readily adjusted radially, removed from the basic bar, replaced in the same position of adjustment and relocked. The boring bar has a self-contained locking device and adjustable index block which cooperate to permit quick disassembly and replacement.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: October 21, 1980
    Assignee: Fansteel Inc.
    Inventor: Marvin M. Heisner
  • Patent number: 4227841
    Abstract: A boring bar whose body has an inclined end surface on one free end thereof against which an elongate cutting member is positioned. The inclined end surface has a recess extending inwardly therefrom in which a yoke member is positioned, the yoke member having a portion extending outwardly beyond the inclined end surface and perpendicular thereto and surroundingly engaging the cutting member, and a screw or other suitable securing element cooperates with the yoke member for applying an inward force thereto in a direction perpendicular to the inclined end surface for clampingly securing the cutting member firmly against the inclined end surface of the body.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: October 14, 1980
    Inventor: Donald L. Hoover