Abstract: The punch press of the present invention is capable selecting three tracks of the punch tool by the standard and low-priced cylinder device, and the supporting strength of the cylinder device can be obtained sufficiently. The tool setting station with punch tool 4 is provided in a plurality in the periphery direction in the turret 3A that is rotatable around the center of the periphery. At least one of the tool setting stations is arranged with three punch tools in the turret diameter direction. The ram 11 comprises the ram main body 14 capable of elevating and descending, and the striker 15 which is provided transferable in the diameter direction at the lower part of the ram main body. The punch press comprises the link member 19 which is connected rotatable in both directions to the striker 15, and two cylinder devices 21A, 21B of which the piston rods 20A, 20B are connected rotatable to both ends of the link member.

Abstract: Adjustable length punch assemblies are disclosed. An adjustable length punch assembly in accordance with present invention may be used with a punch press including a tool holder adapted to receive punch assembly and a ram adapted to move longitudinally along a ram axis. An adjustable length punch assembly in accordance with present invention preferably includes a punch body assembly disposed in threading engagement with a drive body assembly having a surface adapted to be struck by ram of punch press. length of punch assembly may be adjusted by rotating of one body relative to other body. adjustable length punch assembly preferably includes a lock mechanism for selectively preventing rotation of the punch body assembly relative to the drive body assembly. lock mechanism preferably comprises a lock shaft coupled to one of bodies and a lock key slidingly coupled to other of bodies such that lock key slides along a lock key path.

Abstract: A feeding apparatus of a moved body includes: a base; a rotatable long ball screw extending in a longitudinal direction of the base; a nut member engaged with the long ball screw; a moved body mounted to the nut member; a pair of drive shafts arranged in parallel to the long ball screw and being provided with a ball screw; driving and transmitting members connecting both outer end portions of each of the drive shafts to both ends of the long ball screw; drive motors connected to both inner end portions of each of the drive shafts; and an intermediate support supporting the long ball screw and each of the drive shafts. The intermediate support is provided with a nut member which is engaged with the ball screw. Therefore, the intermediate support is moved in a longitudinal direction by rotation of the long ball screw.

Abstract: A punching machine comprising at least one punching head including a support body having a first end delimiting a peripheral shoulder, a second end, and at least two parallel seats being angularly spaced from one another and extending through said support body from said first end to said second end; a punching tool holder slibably mounted in at least one of said seats; a multiplicity of removable resilient means angularly spaced from one another, each having a first end resting on said peripheral shoulder and a second end facing away from said peripheral shoulder; an annular cap member arranged in front and spaced from said peripheral shoulder and designed to abut against said second end of said resilient means; a rotor member mounted for rotation on said annular cap member and having an inner face thereof facing towards said punching tool holder; a sliding member projecting from said inner face and arranged to slide onto said punching tool holder when said rotor member rotates; and driving means designed to

Abstract: A punch press for machining a plate-shaped workpiece by cooperation of an upper metal mold mounted on an upper turret and a lower metal mold mounted on a lower turret. The upper turret and the lower turret are rotationally driven. A plurality of lower metal molds are provided corresponding to a selected one of the upper metal molds, and the workpiece is machined after selection of one lower metal mold from among the plurality of lower metal molds.

Abstract: The object of the present invention is to provide a turret punch press capable of discharging easily the small article work sheet cut off from the material work sheet, without employing a subhead separately from the punch driving mechanism. The punch press comprises a work sheet outlet 12 for discharging small article work sheet cut off from the material work sheet in the punch processing, employed in the lower turret 4. Moreover, a shooter 13 connected to the work sheet outlet 12 is employed in a main body frame 1.

Abstract: A quick-extraction punch-holder adaptor for converting punching machines from a single-punch to a multiple-punch configuration, connectable to a conventional turret of a punching machine, comprises a cylindrical body crossed by a plurality of punch accommodation receptacles, a selection device rotatably mounted at the end of the cylindrical body and provided, at a lower face, with a tooth for contact with the head of each selected punch and elastic elements, circumferentially interposed between the selection device and the cylindrical body, and being loadable by compression to contrast the active stroke and produce the return of the punches.

Abstract: A modular conversion unit for converting punching machines from single-punch to multiple-punch comprises an upper main cylindrical magazine rotatably supported by a turret of the punching machine and provided with a plurality of radial seats for accommodating corresponding upper secondary cylindrical magazines, supporting a preset number of punches surmounted by corresponding hammer elements fitted so as to rotate, a corresponding lower main cylindrical die-holder magazine accommodated so as to rotate synchronously and in alignment with said upper cylindrical magazine in a hollow seat formed in a worktable of the punching machine and provided with a corresponding number of radial seats for lower secondary die-holders vertically aligned with the upper secondary magazines, each die-holder being provided with a plurality of dies whose number is equal to the number of the punches.

Abstract: A self-aligning multi-tool for use in a punch press having a ram. The multi-tool includes a housing carrying a striker and a magazine bearing a plurality of circumferentially spaced tools and rotatable with respect to the housing so as to bring a single desired tool into alignment with the striker. The housing has a striking surface adapted to be engaged by the ram of a punch press and configured to rotationally lock to the ram when correctly rotationally aligned therewith to prevent the housing from rotating as the magazine is rotated. The housing is provided with at least one alignment pin having a tapered cam surface and positioned such that the ram will contact and cam against the tapered cam surface of the pin as the ram approaches the striking surface if the machine ram and the striking surface are rotationally mis-aligned so as to urge the housing to rotate into correct alignment with the ram to enable rotational locking therebetween.

Abstract: A punch press includes a pair of disc-shaped tool holders rotatably mounted on supporting portions, one of the holders carrying a plurality of punch tools, and the other holder carrying a plurality of die tools which cooperate with the punch tools in order to punch a workpiece. A striker is attached to a vertically movable ram, wherein the striker is movable to a position into which desired punch and die tools attached to the pair of tool holders are indexed in order to change direction of the tools by rotating the pair of tool holders.

Abstract: A rotary die-cutter having a planetary configuration for die-cutting paper products such as corrugated and solid-fiber paper board includes a frame in which is mounted a rotatable turret assembly. Rotatably attached to the turret assembly is a first die-cutting cylinder, a second die-cutting cylinder, and an anvil. Various tools or forms are detachably mounted to the exterior of the first and second die-cutting cylinders to cut, score, or crease paper box packaging materials. Each die-cutting cylinder is either in an operational position or a set-up position depending on the orientation of the turret assembly. In order to change the tools or forms of a die-cutting cylinder, the turret assembly is rotated such that the operational die-cutting cylinder moves to the set-up position, while the die-cutting cylinder in the set-up position simultaneously moves to the operational position.

Abstract: A ball screw spline shaft 41 is driven for rotation by a drive motor 53 provided at least on one end thereof. When a feeder ball nut 61 moves in response to the rotation of the ball screw spline shaft 41 from one end of the ball screw spline shaft 41 toward the other end, intermediate supports 65 on both sides thereof travel in the same direction at a lower speed on a support guide 67 and the ball screw spline shaft 41. As a result, the intermediate supports 65 on both sides are located in positions around the middle of the distances between the feeder ball nut and both of the ends and moves while supporting the ball screw spline shaft 41. This increases the critical speed of the ball screw spline shaft 41 to increase the speed of rotation of the ball screw spline shaft 41.

Abstract: In a turret punch press (1) which rotates and indexes an upper turret (5) and a lower turret (7), positions a desired punch and die from a plurality of punches (P) and a plurality of dies (D) to a processing position (25), and performs a punching process in cooperation with the punch and the die, in the case that a core of the die with respect to the punch is offset at a time of replacing the die or after a long time use, since a hole (133) for a bolt (135) fastening a die holder (129) to the lower turret (7) is great, the bolt (135) is loosened so as to adjust a position of the die holder (129) with respect to the lower turret (7).

Abstract: The machine comprises a work surface on which sheet metal rests, a fixed structure which supports the work surface, a work station provided with a hammer movable along a vertical axis to punch the sheet metal, punch units defined by a first holder and a punch tool, and die units defined by a second holder and a die tool. The machine includes a first rotatable table which carries the punch units and which transfers a punch unit to the work station, and a second rotatable table which carries the die units and which transfers a die unit to the work station. It includes a first structure for centering the punch unit with respect to the axis by securing the first holder to the fixed structure and means for centering the die unit with respect to the axis by securing the second holder to the fixed structure, excluding the tables from this securing which are therefore not affected by the mechanical stresses generated during punching, which are transmitted by the centering structure directly to the fixed structure.

Abstract: A device for converting punch changing in punching machines from manual to quick and automatic comprises: a stator element, which can be inserted in a corresponding and conventional seat provided in the machine and supports a plurality of punches which are arranged vertically in a circular pattern and can slide in corresponding hollow seats; a rotor element, which can be rotated by corresponding elements coaxially inside the stator and is eccentrically provided with a pusher which can be aligned, through gradual rotations of the rotor element, so as to be coaxially vertical above each one of the punches; the rotor element can also be moved vertically by an extent inside the stator, in contrast with elastic elements and guided by stem-like elements which are rigidly coupled to the stator element.

Abstract: Pin insertion holes 25, and 26 are adjustable relative to each other and are arranged such that one is on a die holder 6 which is mounted on an alignment plate 7 of a lower turret 2 and the other one is on the alignment plate 7 itself. A mounting pin 11 is inserted through the die holder 6 and through both pin insertion holes 25, 26. This mounting pin 11 is capable of increasing and decreasing in diameter when inserted in the pin insertion holes 25, 26. The mounting pin 11 is charged with a pressure medium 22 such as oil or the like and this diameter increase is carried out by the pressurization of the pressure medium 22 by the screwing of a pressure application screw 23 or the like.

Abstract: The invention provides a tool which can be used with a punch press. On such tool includes a marking punch which has a recess; a marking punch magazine having a channel in which the marking punch is received and an external surface having a transverse groove therein which is in communication with the channel; a striker which strikes the marking punch to move the marking punch from its rest position to its marking position; and a resiliently compressible body received in the transverse groove of the magazine and in the recess in the marking punch. This compressible body desirably is compressed between the magazine and the marking punch when the marking punch is in its marking position, but resiliently biases the marking punch towards its rest position. The invention also provides a method of marking a workpiece, which method can employ such a tool.

Abstract: A press machine is provided to reliably reposition a workpiece without causing it to become offset. The press machine includes a punch tool for punching a workpiece and a workpiece gripping section for gripping and moving a workpiece on a table. The workpiece gripping section repositions the workpiece. A control facilities stops the punch tool while it is penetrating the workpiece during the punching operation. In this stopped condition, the control facilities causes the workpiece griping section to perform a repositioning operation. During the repositioning operation, the control facilities selects a punch tool with a shape other than a perfect circle to fix the workpiece.

Abstract: A new type of multi-chopper for cutting strands or ribbon shaped material such as strands of glass fibers, and a method of using this chopper, is disclosed. The chopper has at least two chopper assemblies on a rotating frame. When one chopper assembly needs repair, the frame is rotated which brings a rebuilt or repaired chopper assembly into operating position quickly and also brings the assembly needing repair into a position where it can be worked on while the other chopper is operating resulting in much reduced downtime. The frame of the chopper can rotate around a vertical or horizontal line, or around a line passing through two opposite corners of a frame.

Abstract: A machine for punching sheet metal includes a counterpunch holder unit including a supporting disk mounted for rotation about a main axis and supporting a number of counterpunch holder assemblies, each including a respective counterpunch. Each counterpunch holder assembly includes a main body secured to the supporting disk. Each main body includes a seat, which extends coaxially with the main body axis which is parallel to the main axis. Each counterpunch holder assembly further includes an extracting body housed in an axially-movable manner inside the seat to support the bottom of the respective counterpunch. A positive actuating assembly moves the extracting body axially to extract the counterpunch from the respective seat.

Abstract: An adjustable punch assembly is provided for use at an indexable punching station in a turret punch press. The overall length of the punch assembly may be adjusted using a motor and pulley system that is also used for indexing the punch tool. Further, the punch assembly includes a quick disconnect connection between the punch driver and the punch tip that facilitates the changing of the punch tip.

Abstract: A drive device, for rotating a machine tool table, includes an armature, of a linear electric motor, located tangentially along the whole lateral surface of a circular table. The armature is connected by its own lateral surface to the table. An inductor, of the linear electric motor, is located substantially facing at least a part of the armature.

Abstract: A single die raising device is arranged on a turret for raising a die used for forming so that such die-raising device does not become an obstruction when the work is delivered. Apparatus is described in which each of a plurality of form dies (5) arranged on a lower turret (2) can be raised. A die-raising device (16) that raises the die (5) from below the lower turret (2) is arranged so as to be utilized in one place, for example, in the punch position (P), of the rotation path (L) of the die (5) by rotation of the lower turret (2). A projecting part (29a) that projects lower than the lower surface of the lower turret (2) is arranged on each die (5). The die raising device (16) comprises a retracting member (17) which is able to retract horizontally and has a horizontal surface (17b) and a slanting surface (17a) which can lift up the projecting part (29a) of the die (5), and an actuator (18).

Abstract: Two drive motors (9L, 9R) are provided on both sides of the ball screw (5), and the ball screw is driven by these two drive motors simultaneously. Therefore, the ball nut (17) attached to the worktable and in mesh with the ball screw (5) can be moved reciprocatingly to move and locate the worktable (15) on which workpiece (W) is clamped. Since the ball screw can be rotated by the two drive motors together, even if a ball screw of large lead is used, the maximum rotational speed and the maximum acceleration can be both increased, so that the workpiece can be located in position in a short time. In addition, since the torsional stress and strain generated in the ball screw can be both reduced, the locating precision can be further improved.

Abstract: A slitting line includes a slitter, an uncoiler, and a thread sled between the slitter and the uncoiler for peeling material off of a coil of strip material and guiding it into the slitting arbors. The thread sled is displaceable transversely with respect to the material pass line from an active position within the material pass line to an inactive position displaced from the material pass line. When the thread sled is displaced into the inactive position, a substitute pair of slitting arbors that have been retooled may be rotated in a generally horizontal plane into an active position in the material pass line to perform a slitting operation. This thread sled is then displaced back into its active position in the material pass line, where it unpeels material from a coil supported on the uncoiler and guides the leading edge of the material into the retooled slitting arbors.

Abstract: A multiple tool is disclosed wherein during a punching process by a predetermined punch, a workpiece is not damaged by other punches not used therein. A multiple tool is mounted on a rotatable holder (7) supported in a freely rotatably driven manner on a holder body (3) such as an upper turret. The multiple tool includes a punch holder (231), and a plurality of punches (241) supported in a vertically movable manner on the punch holder, and a striker plate (261) provided in the punch holder (231) in a rotatable and vertically movable manner relative to the punch holder (231).

Abstract: The turret punch press has a body frame (3); a ram (51) for striking a punch (41) to punch out work (W) in cooperation with a die (35); an upper turret (39) rotatably mounted on the body frame and having a plurality of punches (41), any desired punch being selectively located at a punch area (A1); and a lower turret (33) also rotatably mounted on the body frame and having a plurality of dies (35), any desired die mated with the desired punch being selectively located at the same punch area (A1). In particular, the upper turret (39) is formed smaller in diameter than the lower turret (33), and further the upper turret (39) is dislocated eccentrically from the lower turret (33) toward the punch area (A1) to provide an open die exchange area (A2) over a part of the lower turret (33). Or else, the upper turret (39) is formed with a cutout portion (53) to provide an open die exchange area (A2) over a part of the lower turret (33) when the upper turret is disposed concentrically on the upper turret (39).

Abstract: To adapt a punch press to cut work blanks, a cutting mechanism having a freely rotating cutting wheel is provided to a first support of the punch press while a corresponding die having a groove for mating with the cutting wheel is provided to a second support of the punch press. To operate, the cutting wheel is moved toward the die a given distance such that the cutting edge of the cutting wheel slidably mates with the cutting edge of the groove of the die to effect cutting of the workpiece. By synchronously rotating both the cutting wheel and the die to different orientations while maintaining their respective cutting edges aligned and in sliding contact with each other, by moving a worksheet relative to the cutter wheel and die, a multidirectional cut path may be effected on the worksheet.

Abstract: The turret punch press has a body frame (3); a ram (51) for striking a punch (41) to punch out work (W) in cooperation with a die (35); an upper turret (39) rotatably mounted on the body frame and having a plurality of punches (41), any desired punch being selectively located at a punch area (A1); and a lower turret (33) also rotatably mounted on the body frame and having a plurality of dies (35), any desired die mated with the desired punch being selectively located at the same punch area (A1). In particular, the upper turret (39) is formed smaller in diameter than the lower turret (33), and further the upper turret (39) is dislocated eccentrically from the lower turret (33) toward the punch area (A1) to provide an open die exchange area (A2) over a part of the lower turret (33). Or else, the upper turret (39) is formed with a cutout portion (53) to provide an open die exchange area (A2) over a part of the lower turret (33) when the upper turret is disposed concentrically on the upper turret (39).

Abstract: A pneumatic marking tool (35,123) is attached to one of the punch mounting holes (9) of the upper turret disk (3) of a punch press. When the punching striker (13) is moved down to its lower dead point, compressed air is supplied from a compressed air supply unit (103) to the marking tool to move the marking stylus (49, 129) up and down repeatedly at a high speed. At the same time, the work (W) is moved in a two-dimensional way by the Y- and X-axis work driving mechanisms (27, 29) of the punch press, in synchronism with the repetitive marking stylus motion, to engrave characters and/or symbols as a form of gathered dots all under control of the numerical control unit (33). Therefore, it is possible to mark or engrave any required characters and/or symbols without occupying a number of punch mounting stations of the upper turret disk and without the use of any punch press of high punching frequency, thus eliminating the laborious setting work required whenever the plate thickness of the work changes.

Abstract: Method and Apparatus for economically providing an automatic tool changing capability to a numerically controlled punch press, without the addition of servo drives dedicated to the tool changer. The punch press has a back rail carrying work clamps and positionable along an X axis for positioning the workpiece along that axis. The punch and die assembly is carried in a work head which is servo driven along a Y axis, so that the pair of servos accomplish X, Y positioning with respect to the workpiece. A plurality of tool cartridges are carried on the back rail. To accomplish a tool change operation, the X axis servo is indexed to bring a selected tool holder to a tool change position, and the remaining positioning for making the tool exchange (either into an empty cartridge or from a full cartridge) is accomplished by Y positioning of the tool head, without the need to alter the workpiece Y position or index an auxiliary mechanism for a tool change operation.

Abstract: The turret punch press has a body frame (3); a ram (51) for striking a punch (41) to punch out work (W) in cooperation with a die (35); an upper turret (39) rotatably mounted on the body frame and having a plurality of punches (41), any desired punch being selectively located at a punch area (A1); and a lower turret (33) also rotatably mounted on the body frame and having a plurality of dies (35), any desired die mated with the desired punch being selectively located at the same punch area (A1). In particular, the upper turret (39) is formed smaller in diameter than the lower turret (33), and further the upper turret (39) is dislocated eccentrically from the lower turret (33) toward the punch area (A1) to provide an open die exchange area (A2) over a part of the lower turret (33). Or else, the upper turret (39) is formed with a cutout portion (53) to provide an open die exchange area (A2) over a part of the lower turret (33) when the upper turret is disposed concentrically on the upper turret (39).

Abstract: A machine for machining sheet metal and presenting:a multiple-tool assembly fitted with a number of tools arranged in a ring about a vertical axis;a multiple-die assembly fitted with a number of dies arranged in a ring about a vertical axis;a work station presenting a hammer movable along a vertical axis; anda carriage for moving the sheet.The main characteristic of the present invention is that the work station presents a strikerfor transmitting to the work tool the pressure exerted by the hammer; and a device for rotating the work tool about is longitudinal axis.

Abstract: In a turret punch press 1 provided with an upper rotatable turret 5 having a plurality of punches P and a lower rotatable turret 7 having a plurality of dies D, a diameter of the lower turret 7 is determined to be larger than that of the upper turret 5; rotational centers of the upper and lower turrets 5 and 7 are determined to be eccentric from each other; and on a line obtained by connecting the two rotational centers of both the upper and lower turrets when seen on a plane, a position at which the upper and lower turrets 5 and 7 are overlapped upon each other is determined to be a punching position 21 and positions remotely opposite to the punching position 21 and at which the upper and lower turrets 5 and 7 are separated from each other are determined to be indexing positions 61 at which the angular positions of the punch P and the die D can be both indexed.

Abstract: An automated workpiece rotation is accomplished by clamping the workpiece, to the lower turret of a turret punch press in the press carriage grippers and rotating the turret 180.degree. to reorient an oversized workpiece in order to enable completion of a punching program on the workpiece. The turret is positively located in each rotated position, and the degree of tilt of the rotated sheet in the press carriage grippers is determined by edge detectors.

Abstract: A punch press having a rear address configuration is described in which a forward facing carriage cross slide is mounted within the throat space of a punch press main frame and an auxiliary turret frame mounts the punch and die rotary turrets separately from the main punch frame, avoiding the need to prevent turret misalignment by main frame deflection during punching. Separate turret modules also allow matching different turret configurations to various punch press configurations. A turret module having different diameter independently driven upper and lower turrets is also disclosed, allowing a greater number of dies than punches to be stored to allow any several dies to be mated with a particular punch for proper punching with various materials.

Abstract: A method for controlling punch strokes of a punch press machine includes the step of performing a first punching operation with a punching tool wherein a sheet of material is in a first preselected position. A second punching operation is then initiated with the punching tool at a variable hover height before the sheet of material reaches a second preselected position. The variable hover height of the punching tool is determined by the distance between the first and second punching operations. If the sheet reaches a predetermined in-position zone before the punching tool reaches maximum hover height, the ram changes direction moving downward. The punch reaches the material just prior to the work piece coming to a stop thereupon performing the next punching operation.

Abstract: In order to change punches and dies on upper and lower turrets during punching operation on a workpiece, a turret punch press includes a plurality of rotatable holder frames each supporting the upper and lower turret. Thus, when a first set of upper and lower turrets supported on a first holder frames is located in a working region under a striker for a punching operation, a second set of upper and lower turrets supported on a second holder frame is located in a position outside the working region, whereby a punch and die supported on the second set of the turrets can be changed for another punch and die during punching operation. In the preferable embodiment, the holder frame is removably supported on a main frame of the turret punch press, whereby the holder frame can be changed for another holder frame during punching operation.

Abstract: A marking tool assembly includes a plurality of marking punches for stamping alpha/numeric indicia into a workpiece. The punches are adapted to be indexed selectively to an active punching position beneath a striker which causes one of the punches to stamp the workpiece during the downstroke of the tool, the remaining punches resting idly on the workpiece. A stripper ring holds the striker rotationally stationary and also prevents rotation of a retaining ring for permitting up and down sliding of the punches in a holder and for guiding the punches to the active punching position.

Abstract: In order to change punches and dies on upper and lower turrets during punching operation on a workpiece, a turret punch press includes a plurality of rotatable holder frames each supporting the upper and lower turret. Thus, when a first set of upper and lower turrets supported on a first holder frames is located in a working region under a striker for a punching operation, a second set of upper and lower turrets supported on a second holder frame is located in a position outside the working region, whereby a punch and die supported on the second set of the turrets can be changed for another punch and die during punching operation. In the preferable embodiment, the holder frame is removably supported on a main frame of the turret punch press, whereby the holder frame can be changed for another holder frame during punching operation.

Abstract: A turret punch press includes rotatable upper and lower turrets, a striker which is vertically movable for striking a punch, a plate positioning device for moving and positioning, in the X and Y directions, a plate workpiece supported on a work table, and a tool changing device, wherein a punch holder magazine and a die holder magazine supporting respectively a punch and a die to be installed on the upper turret and the lower turret to replace the punch and die in use, are provided adjacent to the upper and lower turrets. The punch changing position on the upper turret is below the punch holder magazine, and the die changing position on the lower turret is above the die holder magazine. The tool changing device is positioned on a vertical line between the punch and die changing positions so that the punches and dies can be changed by a direct linear operation.

Abstract: A turret punch press (1) includes an upper turret (5) for holding punches (P) and a lower turret (7) for holding dies (D). The diameter of the lower turret (7) is larger than that of the upper turret (5) so that a punch exchange position (61) and a die exchange position (61), which are opposite to a punching position (21), are separated away from each other. This arrangement enables the die to be exchanged from above the same, expands the freedom of designing of dies, improves workability, and realizes an automatic die exchange in an automatic index station.

Abstract: A turret punch press and a die set exchange device for the press are disclosed. The punch press includes a turret carrying die sets in die set attaching areas, and a die set exchanging device having a plurality of housings on a carriage, which moves horizontally between the turret and a die storage section to take out and charge die sets with the turret and the die set storage section to exchange the die sets for the next use.

Abstract: In a method of tool selection control for a punching press machine equipped with a multi-tool holder, a tool selection instruction (1) consisting of 4-digit T codes such as (T1101) associated with a first punch tool (42a) of the multi-holder (42) is read from a machining program. A holder designation code (T11XX) for designating the multi-tool holder is provided to a magazine (4), based on the upper two digits of the T code, and is converted to a target rotation position of the magazine by a first angle parameter (2). A tool designation code (TXXO1) for designating a first punch tool fitted to the designated multi-tool holder, which consists of the lower two bits of the T code, is converted to a target rotation position of the designated multi-tool holder by a second angle parameter (3).

Abstract: In a combined processing machine provided with a punching press mechanism and a laser head, a detector such as an electric micrometer is mounted on a cross slide provided for moving a workpiece on a work table with the aid of a work piece holder. The detector is made to come into contact with the rear face of the upper turret and subsequently with the laser head and measures the deviation of the punching position and the laser processing position.

Abstract: The present invention provides a stroke operation mechanism which is incorporated in a single-structure press machine so that various types of stroke operations can easily be generated on the slide side, and a control method for controlling the stroke operation mechanism so as to cause the mechanism to exhibit various types of stroke operations. The press machine stroke operation mechanism has a driving system having a feed screw member disposed on a plane in parallel therewith, at least one pair of nut members screwed on the screw member and moved by rotation of the screw member so as to separate from and approach to each other, and a servomotor for supplying torques for normal and reverse rotations to the screw member; and a slide system having a slide member supported below the screw member at right angles therewith so as to be vertically slidable, and a transmission bar member having an upper end axially connected to the nut members and a lower end axially connected to the slide member.

Abstract: A method for restoring the alignment of the apertures of the upper and lower turrets of a punch press machine includes the steps of determining the radial and angular misalignment, if any, of an individual turret aperture relative to a reference axis such as, for example, the axis of rotation of the turrets. Any angular misalignment of a turret aperture relative to the reference axis is corrected by re-positioning the respective index pin assembly which maintains the turret in a predetermined angular position. Any radial misalignment of the turret aperture is corrected by a re-boring procedure in which a cutting tool supported on a boring bar is advanced through the turret at the area of the respective aperture to re-bore the aperture to a new, enlarged diameter with the walls of the aperture being concentric with an axis at the desired radial spacing from the reference axis.

Abstract: An air powered milling tool supported in the upper turret of a turret punch press is cycled simultaneously with a hydraulically- or mechanically-powered punch press ram in a multiple-stage cycle to perform a milling operation on a sheet material workpiece retained between the upper and lower turrets of the punch press. The air-powered tool, which includes a punch head in coaxial alignment with a guide sleeve, drives an end mill which is contained within and is coaxially extendible through the guide sleeve toward the workpiece to perform a machining operation thereon. Hold-down bearings disposed at the end of the guide sleeve engage with the workpiece at a local region thereof. A spring-biased lifter disposed in the upper turret is engagable with the guide sleeve. In operation, the punch press striker impacts the punch head of the milling tool, urging the milling tool and air motor in the direction of the sheet material.

Abstract: A tool changing apparatus for changing the punches and dies on a turret punch press is disclosed, wherein a carriage device provided with a upper rotatable disk on which a plurality of punches is removably supported, and a lower rotatable disk on which a die holders supporting a plurality of dies is removably supported, is positioned at the side of the turret punch press. A punch mounting/dismounting device is further provided for dismounting a punch from and mounting a punch on the upper rotatable disk and for dismounting a punch from and mounting a punch on an upper turret disk on the turret punch press. The punch mounting/dismounting device is adapted to transport the punch between the upper rotatable disk and the upper turret disk. A die mounting/dismounting device is yet further provided for moving the die holder back and forth between a lower turret disk on the turret punch press, and the lower rotatable disk.

Abstract: A punch tool selection and orienting arrangement is disclosed in which a multiple tool holder and a rotary ram are separately driven to select and orient a single punch tool beneath the rotary ram for a punching operation. The rotary ram is also described as performing the tool selection process in disclosed embodiments in which a nonrotating tool carrier is used.