Abstract: To watch the condition of tools mounted on a turret punch press and an automatic tool changing unit, a control device performs a simulation of a punch processing on the basis of an NC program for the turret punch press. On the basis of the simulation, the control device calculate the number of times for which each tool mounted on the punch press performs punchings in the workpiece during the punch processing. From the number of times, the control device determine the abrasion loss of the tools mounted on the punch press and the automatic tool changing unit. The control device is also adapted to store a length by which a tool is shortened by a grinding processing to be made in a tool to sharpen the same.

Abstract: To store tall loads on a pallet (P) supported by the pallet retaining shelves (R) of a shelf frame (3), irrespective of a pitch dimension between the pallet supporting shelf crosspieces (13), the pallet carry-in management system includes: a pallet presence/absence state management section (57) for managing pallet presence or absence status of the respective pallet retaining shelves (R); a vertically continuous vacant shelf management section (59) for managing a position and the number of stages of the vacant pallet retaining shelves (R) on which no pallets are carried-in vertically continuously, on the basis of management information transmitted by the pallet presence/absence state management section; and a maximum allowable load height calculating section (61) for calculating an maximum allowable height of loads to be mounted on the vacant pallet retaining shelves (R), on the basis of the position and number of stages of the vacant pallet retaining shelf information transmitted by the vertically continuous

Abstract: A clamp device for securing a bending press punch on its punch holder, the clamp device being capable of securing punches having a straight, or flat, contacting surface and those having a groove on the contacting surface. The clamp device comprises a plurality of spring members each secured about a bolt; an upper punch clamp plate member having a punch contacting surface; and a lower flanged punch clamp plate member having a punch contacting surface. The spring members provide the force necessary to return the upper punch clamp plate member to a position wherein a portion thereof is within the groove when the grooved punch is used. When the flat surface punch is utilized, the punch contacting surface portion of the lower punch clamp plate member and the punch contacting surface of the upper punch clamp plate member are positioned against the contacting surface of the punch thus providing solid surface contact when either punch design is utilized.

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: A bar transporting device for transporting bars into and out of a bar processing machine (63) which processes bars (B) of different shapes and dimensions. The bar transporting device (1) includes a shelf frame (7) provided with vertically arranged pallet shelves (5) onto which pallets (3) loaded with bars (B) are to be removably stored, a vertically movable elevating device (21) provided at one end of the shelf frame (7) and adapted to transport the pallets (3) into and out of the shelf frame (7) and transport the pallets (3) between the shelf frame (7) and a bar feeding position (71), and a bar forwarding device (77) for transporting the bars (B) between the pallet (3) removed from the shelf frame (7) and positioned at the bar feeding position (71) by the elevating device (21), and the bar processing machine (63).

Abstract: A punching die includes a punch body and a punch head provided for an upper portion of the punch body. The punch head is struck by a striker. The punching die further includes a punch guide disposed at a lower portion of the punch body, a retainer collar disposed over the punch guide and fitted to the punch body, a stripping spring interposed between the punch head and the retainer collar, and an elastically deformable damping member being interposed between an upper surface of the punch guide and a lower surface of the retainer collar.

Abstract: In a work table apparatus for a plate material processing machine, a group of work supporting belts each extending in a work feed direction and divided in the direction perpendicular to the work feed direction are arranged so as to form a work table surface separated into front and rear support portions on both sides of a plate material processing section, and the work supporting belts are driven in the work feed direction in synchronism with the movement of the plate material to be processed. Therefore, no relative displacement is produced between the work support portions of the work supporting belts and the plate material to be processed. Thus, punched products of small size can be supported securely without damaging the microjoint portions of the processed products, scratching the plate material, and producing sound noise.

Abstract: A device for removing sawdust adhering to a saw blade of a sawing machine, comprising a cleaning instrument supported by a supporting member attachable to a saw blade housing in which the saw blade is mounted and adapted to move relative to the saw blade, and a device for adjusting an overlap between the cleaning instrument and the saw blade so that the overlap can be maintained always at a suitable value.

Abstract: A bar storage apparatus comprises: a shelf frame (19) provided with a plurality of pallet accommodating shelves (17) each for movably accommodating a pallet (15) on which a plurality of bars are mounted; an elevator device (23) disposed on one side of the shelf frame so as to be movable up and down and provided with a traverser (21) for moving each pallet into and from each of the pallet accommodating shelves; and a bar supplying device (25) for supplying a bar, mounted on the pallet moved from the pallet accommodating shelf and further located at a predetermined position by the elevator device, to a bar processing machine (3). The bar storage apparatus can store a great number of bars of various kinds and various dimensions, select any required bars from a great number of bars, and supply the selected bars to a bar processing machine easily and quickly.

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 punching die includes a punch body, a punch driver secured to the punch body, and a punch head provided on an upper portion of the punch driver for movement relative to the punch driver when the punch head is struck by a striker. The punch die further includes a punch guide fitted into the punch body, a stripper plate disposed at a lower portion of the punch guide, a stripping spring interposed between the punch guide and a flange portion of the punch driver, and an elastically deformable damping member interposed between an upper surface of the punch driver and a lower surface of the punch head.

Abstract: The low noise punch tool (17) of this invention includes an upper surface pad (51) formed of a low noise material and disposed on an upper surface of a punch head (37) to be struck by a striker (25) of a punch press. Further, an elastic member (55) formed of a low noise material is interposed between the punch head (37) and a punch guide (43), and a ring (53) formed of a low noise material is interposed between the punch body (39, 41) and the punch guide (43). The low noise punch tool (17) includes a lower surface pad (63) formed of a low noise material and attached to a lower surface of a stripper plate (45) provided at a lower end of the punch guide (43). The low noise material may be urethane. Yet further, the cutting edge (41a) provided at the lower end of the punch body (41) has preferably a shearing angle. This punch tool is advantageous in that the noises of the punch tool during punching is significantly reduced, and the structure thereof is simple.

Abstract: In an upper tool, a stripper plate (35) is disposed movably up and down at a lower end portion (13a) of a punch guide (13) for housing a punch (27) also movably up and down, via a shock damping member (33). Further, the shock damping member (33) is formed into an annular body disposed so as to enclose an annular gap (X) formed between the lower end portion (13a) of the punch guide (13) and the upper surface (65) of the stripper plate (35). The upper tool can reduce noise sound generated during punching processing, and further prevent chips produced during punching processing from adhering onto the workpiece and the shock damping member, thus protecting the workpiece from being scratched by the chips and further improving the life time of the shock damping member.

Abstract: A metal sheet processing apparatus for replacing dies with one another and for positioning a plate material in longitudinal directions. The metal sheet processing apparatus includes left and right side frames (3L, 3R), upper (5) and lower (7) tables supported by the side frames, one of the upper and lower tables serving as a vertically movable ram, and dies (17,19) disposed in a processing zone between the upper and lower tables (5, 7), for processing a plate material (W). A back gauge unit (41) is moved and positioned in longitudinal directions to position in the longitudinal directions the metal sheet (W) to be processed by the dies (17, 19). A die storage section (37) is defined behind the upper table (5). Part of the back gauge unit (41) is vertically movable and capable of supporting and replacing the dies (17, 19) between the die storage section (37) and the processing zone.

Abstract: A bandsaw machine which has a sawhead assembly in which a flexible endless bandsaw blade is trained around a pair of bandsaw blade wheels to cut a workpiece, with the blade being guided by a guide arm, includes a guide member on the guide arm, for holding the bandsaw blade in a vertical orientation by pushing the bandsaw blade from both sides. A rolling member is mounted on the sawhead assembly and is free to push a side surface of the bandsaw blade with a predetermined force so as to prevent vibration of the blade.

Abstract: A bending machine having an upper punch containing portion, or beam, and a lower die containing portion, or beam, is modified by incorporating a controlled expandable pressure device whereby the pressure applied to a work material is uniformly distributed throughout the surface of the material. In a first embodiment, the device is mounted in the upper and lower machine portions; in a second embodiment, the device is mounted only in the upper machine portion; in a third embodiment, the device is mounted only in the lower machine portion; and in a fourth embodiment, segmented devices are mounted in the upper machine portion and a single, elongated device is mounted in the lower machine portion.

Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an X-axis (groove forming direction); a Z-axis slider supported by the X-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.

Abstract: A transmission coupling for manipulator head includes a support body (50) connected to the manipulator head (4), an intermediate transmission member (76) slidable on the support body (50) along a first line (C), and an attachment member (28) slidable on the intermediate member (76) along a second line (B) perpendicular to the first line. The attachment member can pivot relative to the support body (50) about at least two mutually-perpendicular axes substantially parallel to the plane defined by the first and second lines. The present invention also relates to a rapid attachment device for an interchangeable tool for a manipulator head (104) including a base body (106) connected to the manipulator head and a generating device for providing a force for retaining the tool (102).

Abstract: A retrofit auto-indexing system for a turret punch press is described in which a predetermined location is provided to which both the upper and lower turrets of a non-indexing turret punch press are rotated. Upper and lower punching tools are mounted respectively in the upper and lower turrets in such a manner so as to be rotated simultaneously, using a single servomotor, to a desired angle. The auto-indexing system is controlled using a microcomputer which is connected to receive the numerical control programmed data, determine whether the code it is receiving relates to the auto-indexing function and, when it does, institute the instructed auto-indexing function. Otherwise, the microcomputer passes the numerical control programmed data directly to a minicomputer which operates the turret punch press in a known manner.