JP2006187776A - Method and machine for working sheet shape workpiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a machine for working sheet shape workpieces, by which method a series of working operations from the positioning of the workpieces on the working position in the machine for working sheet shape workpieces until the taking-out of the workpieces after working can be efficiently performed. <P>SOLUTION: In the method for working the sheet shape workpieces, an optional quadrant among the first, second, third, and fourth quadrants partitioned by an X axis X1 and a Y axis Y1 passing the working position 7 of the machine 1 for working the sheet shape workpieces is determined as a working start quadrant. The working operation is started from the position in the neighborhood of the working position 7 for the workpiece W positioned in the working start quadrant. When the workpiece W is taken out by moving the workpiece W to a workpiece taking-out quadrant other than the working start quadrant, the portion in the neighborhood of the working position 7 for the workpiece W in the state that the workpiece W has been positioned in the workpiece taking-out quadrant is finally worked. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a plate material processing machine such as a turret punch press, a composite processing machine that performs laser processing and punching processing, and a processing method of a plate-like workpiece by the plate material processing machine, and more specifically, processing in a plate material processing machine. The present invention relates to a processing method and a plate material processing machine capable of efficiently carrying out a work after processing from positioning of the work with respect to a position.

Conventionally, a plate-shaped workpiece is loaded into a turret punch press as an example of a plate processing machine, positioned at the origin position, and then moved to the processing position on the plate processing machine in the X-axis and Y-axis directions. There is known a configuration in which a workpiece is processed and then the workpiece is unloaded (for example, Patent Document 1).
JP-A-7-125812

  The plate material processing machine 1 such as the turret punch press described in Patent Document 1 includes a frame 3 as schematically shown in a plan view in FIG. 4. The frame 3 includes a plurality of punches and dies. The upper and lower turrets 5 provided with are rotatably provided. The turret 5 can be freely positioned by indexing a punch and die for processing the plate-like workpiece W to the processing position 7.

  Further, the frame 3 is provided with a fixed table 9 that supports the workpiece W, and is supported by guide rails 11 on both sides of the fixed table 9 in the left-right direction (X-axis direction). Left and right moving tables 13 that are movable in the Y-axis direction) are provided. The left and right moving tables 13 are integrally connected by a carriage base 15 that is long in the X-axis direction (left-right direction). A Y-axis motor 17 for rotating the ball screw mechanism to move the carriage base 15 and the moving table 13 in the Y-axis direction is mounted on the frame 3.

  The carriage base 15 is provided with a carriage 21 having a plurality of work clamps 19 capable of clamping the work W so as to be movable in the X-axis direction. An X-axis motor 23 for rotating the ball screw mechanism to move the carriage 21 in the X-axis direction is mounted on the carriage base 15. Further, the carriage base 15 is provided with a positioning pin 25 provided so as to be able to protrude and retract with respect to the upper surface of the moving table 13 and a workpiece drawing device for abutting the workpiece W against the workpiece clamp 19 to position the workpiece W at the origin. 27 is provided. A workpiece unloading device 29 for unloading the processed workpiece is disposed on one side of the plate material processing machine 1 in the X-axis direction.

  With the above configuration, conventionally, after the carriage base 15 is positioned at the reference position (origin position) in the Y-axis direction, after the workpiece W is moved horizontally from the adjacent auxiliary table 31 to the moving table 13, Then, the positioning pin 25 is protruded, and then the workpiece W is brought into contact with the positioning pin 25 and the workpiece clamp 19 by the workpiece drawing device 27, thereby positioning the workpiece W at the origin. Thereafter, after the workpiece W is clamped by the workpiece clamp 19, the X-axis motor 23 and the Y-axis motor 17 are rotationally controlled to move and position the workpiece W in the X-axis and Y-axis directions with respect to the machining position 7. The processing is performed.

  Therefore, in the configuration as described above, when the quadrangular workpiece W is positioned at the origin position, the workpiece origin position and the machining position 7 of the plate material processing machine 1 are positioned opposite to each other in the diagonal direction of the workpiece W. Thus, there are problems such as a long moving distance for moving the work position of the workpiece W to the machining position, a machining tact time, and a burden on the NC due to complicated internal processing of the NC.

  Further, since the work drawing device 27 is provided, the work W cannot be carried onto the moving table 13 from above, and an extra area (for example, the auxiliary table 31) for horizontally moving the work W is required. There are problems such as.

  Further, in the conventional plate material processing machine 1, as shown in FIG. 5, the ball screw 33 for moving the carriage base 15 in the Y-axis direction is rotatable at a position higher than the carriage base 15 via a bearing 35. It is supported by. Then, a ball nut (not shown) provided on a nut support portion 37 erected at the longitudinal center of the carriage base 15 is movably screwed to the ball screw 33.

  Therefore, if the Y-axis motor 17 is rotated to rapidly move or stop the carriage base 15 in the Y-axis direction, the carriage base 15 is deflected in the Y-axis direction as shown in FIG. There is a problem that it is easy to produce. Further, when the carriage base 15 is moved at a high speed, as shown in FIG. 6B, the lower side tends to be delayed with respect to the upper portion of the carriage base 15 and sometimes a galling phenomenon occurs with the guide rail. There is also. Furthermore, if the ball screw 33 is lengthened to increase the movement distance of the carriage base 15 in the Y-axis direction, there is a problem that the Y-axis motor 17 is increased in size and vibrations are easily induced in the ball screw 33.

  The present invention has been made in view of various problems in the conventional plate processing machine as described above, and moves the plate-shaped workpiece in the X-axis and Y-axis directions by the workpiece movement positioning device with respect to the processing position in the plate processing machine. A machining method for positioning and machining a workpiece, wherein any quadrant of the first, second, third, and fourth quadrants defined by the X and Y axes passing through the machining position is defined as a machining start quadrant. When a workpiece positioned in the machining start quadrant starts machining from a position close to the machining position and moves to a workpiece unloading quadrant other than the machining start quadrant, the workpiece is unloaded and positioned to the workpiece unloading quadrant. In this case, the vicinity of the position close to the processing position of the workpiece is processed last.

  In the plate workpiece processing method, the next workpiece is prepared in the upper space of the machining start quadrant before the workpiece movement positioning device returns to the machining start quadrant.

  A processing method for processing a workpiece by moving and positioning a plate-shaped workpiece in the X-axis and Y-axis directions by a workpiece movement positioning device with respect to a processing position in a plate material processing machine, wherein the X-axis passes through the processing position. , Any quadrant of the first, second, third, and fourth quadrants defined by the Y-axis is set as the machining start quadrant, and the workpiece located in the machining start quadrant can be raised and lowered with respect to the work table upper surface of the plate material processing machine. The workpiece movement positioning device moves and contacts the positioning pins in the X-axis direction and Y-axis direction provided to the workpiece to perform origin positioning, and then the workpiece is clamped by the workpiece clamp provided in the workpiece movement positioning device. The machining of the workpiece is started by moving in the X-axis and Y-axis directions.

  In the plate workpiece processing method, the origin position when the workpiece origin positioning is performed and the machining position coincide with each other.

  A plate material provided with a work table that supports a plate-shaped workpiece, a machining position for machining the workpiece, and a workpiece movement positioning device that moves and positions the workpiece in the X-axis and Y-axis directions with respect to the machining position. In a processing machine, a positioning pin for positioning the workpiece in the X-axis direction and the Y-axis direction at a position on the X-axis line and the Y-axis line passing through the processing position or in the vicinity of the X-axis line and the Y-axis line. It is characterized in that it is provided so as to freely move in and out of the line.

  In the plate material processing machine, a work preparation device for preparing a next work is provided in an upper space of a region where the work is brought into contact with the positioning pin to perform positioning.

  Further, in the plate material processing machine, the configuration in which the carriage base provided in the workpiece movement positioning device is moved in the Y-axis direction includes a pair of ball screws that are long in the Y-axis direction and parallel to each other at a lower position of the work table. A ball nut that is rotatably engaged with each of the ball screws is integrated with a rotor provided in a motor that is integrally mounted on the carriage base, and prevents fine movement of the carriage base in the X-axis direction. And a guide rail for guiding in the Y-axis direction.

  Further, in the plate material processing machine, the workpiece movement positioning device includes a plurality of workpiece clamps that are movable in the X-axis direction individually or in synchronization with a carriage base that is movable in the Y-axis direction. The clamp includes a ball nut that is rotatably engaged with a ball screw long in the X-axis direction provided in the carriage base, and a rotor provided in a motor that is integrally attached to each work clamp. It is characterized by being.

  Further, in the plate material processing machine, a tool unit including a plurality of tools is provided in an upper space on the workpiece movement positioning device side in the Y-axis direction with respect to the processing position, and each tool included in the tool unit is provided with: The indexing positioning is provided without being unevenly distributed in the X-axis direction with respect to the machining position.

  According to the present invention, after the positioning of the origin of the plate-like workpiece, the machining is started from the vicinity of the machining position in the plate material processing machine of the workpiece, and the workpiece when the workpiece is positioned at the unloading position, Since the vicinity of the position close to the processing position is processed last, the workpiece is processed in the process of moving the workpiece from the origin positioning area to the workpiece unloading area, so that the workpiece can be processed efficiently. is there.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components having the same functions as those of the above-described conventional plate material processing machine are denoted by the same reference numerals, and redundant description is omitted. To do.

  Referring to FIGS. 1 and 2, the plate material processing machine 1 according to the present embodiment can freely rotate the upper and lower turrets 5 having a plurality of punches and dies to the frame 3 in the same manner as the conventional plate material processing machine described above. It is illustrated by a turret punch press that is mounted on the head. However, the plate material processing machine 1 is not limited to the turret punch press, and includes a laser processing machine, a composite processing machine in which the laser processing machine and the punch press are combined, and the like.

  The frame 3 of the plate material processing machine 1 is integrally provided with a fixed table 9 that supports the workpiece W to be processed at the processing position 7 in the plate material processing machine 1 and in the front-rear direction (Y-axis direction). A left and right movable table 13 is provided. The left and right moving tables 13 are integrally connected via a carriage base 15 that is long in the X-axis direction (left-right direction). That is, the moving table 13 and the carriage base 15 are integrated.

  In order to move the moving table 13 and the carriage base 15 in the Y-axis direction, a pair of left and right ball screw mechanisms are provided. More specifically, left and right ball screws 43 that are long in the Y-axis direction are provided on a support frame 41 that is integrally provided below the frame 3 below the moving table 13. The part is supported via a bracket 45. Ball nuts 47 are rotatably engaged with the ball screws 43, and each ball nut 47 is integrated with a rotatable rotor of a hollow motor 49 attached to the lower surface of the moving table 13 or the carriage base 15. Is provided.

  The hollow motor 49 has a rotatable rotor formed in a cylindrical shape, and the ball screw 43 passes through the rotor. The ball nut 47 screwed into the ball screw 43 and the rotor are integrated. Therefore, the left and right moving tables 13 and the carriage base 15 can be moved in the Y-axis direction by synchronously rotating the left and right hollow motors 49. In order to detect the movement position of the carriage base 15 in the Y-axis direction, the hollow motor 49 is provided with a position detector such as a rotary encoder.

  A long ball screw 51 is attached to the carriage base 15 in the left-right direction (X-axis direction). That is, the carriage base 15 is provided with ball screws 51 whose left and right ends are supported via brackets 53. A plurality (at least three or more) work clamps 55 are movably supported by the ball screws 51. ing. More specifically, the ball screw 51 passes through a cylindrical rotor in a hollow motor 57 similar to the hollow motor 49 described above, and a ball nut screwed to the ball screw 51 is provided integrally with the rotor. is there. The work clamp 55 is attached to the hollow motor 57.

  Therefore, each work clamp 55 can be moved in the same direction at the same speed by rotating each hollow motor 57 provided in each work clamp 55 in synchronization with the control of the control device. Further, each work clamp 55 can be individually moved by individually controlling and rotating the hollow motor 57 of each work clamp 55. The hollow motor 57 is provided with a position detector such as a rotary encoder that detects the movement position of the work clamp 55.

  As already understood from the above description, the workpiece W can be moved and positioned in the X-axis direction by rotating each hollow motor 57 synchronously in a state where the workpiece W is clamped by each workpiece clamp 55. Further, by rotating the left and right hollow motors 49 synchronously, the workpiece W can be moved and positioned in the Y-axis direction via the carriage base 15. Accordingly, the carriage base 15, the hollow motor 49, the work clamp 55, and the hollow motor 57 constitute a work movement positioning device that moves and positions the work W in the X-axis direction and the Y-axis direction. The position detector that detects the position of the carriage base 15 in the Y-axis direction may be configured such that a linear scale is provided in parallel to the ball screw 43.

  As described above, guide means is provided for guiding the moving table 13 and the carriage base 15 in the Y-axis direction when moving in the Y-axis direction. More specifically, a precision guide rail 59 and a plurality of guide rails 61 provided in parallel with the ball screw 43 are provided on the support frame 41. The precision guide rail 59 is composed of, for example, a linear motion bearing or the like, and has a function of guiding the carriage base 15 and the like in the Y-axis direction while restricting fine movement of the carriage base 15 and the like in the X-axis direction. Is. The guide rail 61 has a function of movably supporting the carriage base 15 and the like via a roller 63 provided on the carriage base 15 and the like.

  With the above configuration, when the moving table 13 and the carriage base 15 are moved in the Y-axis direction, the fine movement of the moving table 13 and the carriage base 15 in the X-axis direction can be restricted, and accurate movement and positioning are performed. It is something that can be done.

  Before the workpiece W is clamped by the workpiece clamp 55 and the workpiece W is moved and positioned with respect to the machining position 7, an origin positioning means for positioning the workpiece W at the origin position in the X and Y directions includes the plate material processing machine. 1 is provided. More specifically, as shown in FIG. 1, a plurality of Y-axis positioning pins 65 for performing reference positioning (origin positioning) of the workpiece W in the Y-axis direction are provided on the upper surface of the fixed table 9 (the workpiece W is moved in the X and Y directions). (Pass line when moving horizontally).

  Each Y-axis positioning pin 65 is arranged on a straight line in the X-axis direction. Each Y-axis positioning pin 65 is a lifting actuator (not shown) such as an air cylinder or a solenoid provided on the lower side of the fixed table 9. ) Is moved up and down with respect to the pass line of the workpiece W. The plurality of Y-axis positioning pins 65 are provided with workpiece detection sensors such as contact sensors that detect contact and contact of the workpiece W to be positioned when protruding from the pass line.

  The Y-axis positioning pin 65 has a configuration in which an individual lifting actuator is individually provided to move up and down selectively in accordance with the dimensions of the workpiece W, and a plurality of Y-axis positioning pins are provided by one lifting actuator. 65 can be configured to move up and down.

  Further, an X-axis positioning pin 67 for positioning the origin of the workpiece W in the X-axis direction is provided so as to be able to protrude and retract with respect to the upper surface (pass line) of the fixed table 9, similarly to the Y-axis positioning pin 65. The X-axis positioning pin 67 is also provided with a workpiece detection sensor that detects contact of the workpiece W. Instead of the X-axis positioning pin 67, for example, a non-contact type sensor can be used, for example, when the work W blocks the thin light beam, the origin position of the work W in the X-axis direction is set.

  With the above-described configuration, the workpiece W is brought into contact with the Y-axis positioning pin 65 to perform Y-direction origin positioning, and the workpiece W is brought into contact with the X-axis positioning pin 67 to perform X-direction origin positioning. It is positioned at the origin position in the X and Y directions. Here, a straight line X1 in the X direction passing through the machining position 7 and a straight line X2 in the X-axis direction connecting the contact portions where the plurality of Y-axis positioning pins 65 contact the workpiece W, and in FIG. Although the positions are shifted and illustrated, it is desirable that the straight lines X1 and X2 coincide with each other. Further, it is desirable that the Y-axis direction straight line Y1 passing through the machining position 7 and the Y-axis direction straight line Y2 passing through the abutting portion where the X-axis positioning pin 67 abuts the workpiece W are coincident with each other.

  As described above, when the straight lines X1 and X2 coincide with each other and the straight lines Y1 and Y2 coincide with each other, the two orthogonal sides of the workpiece W are brought into contact with the Y-axis positioning pin 65 and the X-axis positioning pin 67. At this time, the origin position of the workpiece W coincides with the machining position 7 of the plate material processing machine 1. Thus, since the origin position of the workpiece W and the machining position of the plate material processing machine 1 coincide with each other, the moving distance of the workpiece W can be shortened, the machining efficiency can be improved, and the burden on the NC can be reduced. High-speed machining is possible.

  As described above, it is desirable that the origin position of the workpiece W and the machining position 7 of the plate material processing machine 1 coincide with each other, but they do not necessarily coincide with each other. Is offset in the X and Y axis directions, the origin position of the workpiece W and the machining position 7 are in a close positional relationship, and it is only necessary to correct the offset, thereby reducing the burden on the NC. It will be.

  Further, in the plate material processing machine 1, the lower surface of the upper frame (relative to the processing position 7) between the processing position 7 and the carriage base 15 located at a position close to the processing position 7 and at the origin position in the Y-axis direction. In the upper space on the workpiece movement positioning device side in the Y-axis direction, a tool unit 71 having a plurality of machining tools 69 aligned in the X-axis direction, such as a laser machining head and a tapping unit, is arranged in the X-axis direction. It is provided so that it can be moved and positioned.

  Although detailed configuration of the mounting state of the tool unit 71 to the frame is omitted, the tool unit 71 is movably supported by a guide member in the X-axis direction provided on the lower surface of the upper frame, The movement and positioning of the tool unit 71 in the X-axis direction is performed by the operation of an actuator (not shown) such as a fluid pressure cylinder such as an air cylinder or a direct acting solenoid. When the tool unit 71 is moved in the X-axis direction by the operation of the actuator to position each machining tool 69, each machining tool 69 is positioned on a straight line Y1 passing through the machining position 7. In other words, each machining tool 69 is positioned at the same position as the machining position 7 and the coordinate position in the X-axis direction.

  Therefore, the machining program for machining the workpiece W by each machining tool 69 provided in the tool unit 71 is a machining program in which the offset amount in the Y-axis direction of each machining tool 69 with respect to the machining position 7 is corrected. A machining program for machining the workpiece W by the machining tool 69 can be easily created.

  By the way, in the above description, the case where the tool unit 71 is linearly moved and positioned in the X-axis direction has been illustrated, but the moving direction of the tool unit 71 is not limited to the X-axis direction, and may be any direction. is there. Furthermore, the tool unit 71 can be configured to rotate horizontally around a certain fulcrum. In this case, a plurality of processing tools 69 may be arranged on an arc having the same diameter. That is, various configurations can be adopted as the configuration in which the tool unit 71 is provided.

  In order to carry the plate-like workpiece W into the plate material processing machine 1, a work loading device 73 is arranged on one side of the plate material processing machine 1 in the X axis direction, and the other side in the X axis direction. A work unloading device 75 for unloading the processed work W is arranged on the side.

  More specifically, in the four quadrants defined by the straight line X1 in the X-axis direction passing through the machining position 7 and the straight line Y1 in the Y-axis direction in the plate material processing machine 1, as described above, the origin positioning of the workpiece W is performed. If the quadrant to perform the operation is the first quadrant, the origin positioning quadrant, the workpiece carry-in quadrant or the machining start quadrant, and the second quadrant, the third quadrant, and the fourth quadrant in the counterclockwise direction, the workpiece carry-in device 73 has a machining start quadrant. The work unloading device 75 is disposed in the third quadrant. In this case, since the workpiece unloading device 75 is arranged corresponding to the workpiece unloading quadrant for unloading the workpiece W after processing, the third quadrant is the workpiece unloading quadrant.

  The work carry-in device 73 functions to carry the work W into the upper space of the machining start quadrant and place it on the tables 9 and 13. The frame 77 in the work carry-in device 73 includes the plate material. A long guide member 79 extending in the X-axis direction is provided above the processing start quadrant (first quadrant) of the processing machine 1. The guide member 79 is provided with a sliding member 81 so as to be movable, and a vertical movement actuator 83 such as a fluid pressure cylinder is attached to the lower portion of the sliding member 81.

  Then, the workpiece W loaded on the upper surface of the material table 91 is attracted (magnetically attached) to the lower surface of the elevating frame 87 provided at the lower part of the vertical movement rod 85 such as a piston rod that can move up and down in the vertical movement actuator 83. A plurality of work holding members 89 such as a free vacuum pad or a magnet are provided. In addition, since this kind of workpiece carrying-in apparatus 73 is well-known, the detailed description about the structure of the workpiece carrying-in apparatus 73 is abbreviate | omitted.

  With the above configuration, in the work carry-in device 73, the uppermost work W loaded on the material table 91 is held and lifted by the work holding member 89, and then the first quadrant (working start) in the plate material processing machine 1. The workpiece W can be carried into the upper space of the quadrant. Accordingly, even when the workpiece W is being machined in the plate material processing machine 1, the workpiece W to be machined next is moved to the upper part of the machining start quadrant without causing interference with the workpiece being machined or the workpiece clamp 55. It can be prepared in advance in the space.

  The workpiece unloading device 75 serves to unload the workpiece after being processed by the plate material processing machine 1, and the guide member 95 in the X-axis direction provided in the frame body frame 93 of the workpiece unloading device 75. A workpiece carry-out clamp 97 that is movable along In addition, since this kind of workpiece carrying-out apparatus 75 is well-known, the detailed description about the structure of the workpiece carrying-out apparatus 75 is abbreviate | omitted.

  In the configuration as described above, as shown in FIG. 1, the carriage base 15 is positioned at the origin position, which is the initial position in the Y-axis direction, and the plurality of work clamps 55 are in the position of the first quadrant. X from the origin position that is the initial position of each work clamp 55 in the X-axis direction (for example, the position in which each work clamp 55 is moved leftward in FIG. When the workpiece W moves in the axial direction and is positioned at an appropriate interval in advance, the workpiece W is loaded into the first quadrant (machining start quadrant) by the workpiece carry-in device 73 and placed on the tables 9 and 13 in the plate material processing machine 1. Then, the workpiece W is disposed between the workpiece clamp 55 and the Y-axis positioning pin 65. Therefore, when the hollow motor 49 for Y-axis is driven and the workpiece W is pressed and moved in the direction of the Y-axis positioning pin 65 by the workpiece clamp 55 provided in the carriage base 15, The workpiece W is positioned at the origin position (reference position) in the Y-axis direction.

  Thereafter, the workpiece W is clamped by a plurality of workpiece clamps 55, and the X-axis hollow motor 57 provided in each workpiece clamp 55 is synchronously rotated to move the workpiece W in the direction of the X-axis positioning pin 67 and come into contact therewith. The workpiece W is positioned at the origin position (reference position) in the X-axis direction.

  As described above, when the workpiece W is moved in the X-axis and Y-axis directions and the origin is positioned by contacting the X-axis positioning pin 67 and the Y-axis positioning pin 65, the origin position of the workpiece W is set to the plate material processing machine 1. The position near the machining position 7 or the position coincident with the machining position 7. Therefore, when the machining of the workpiece W is started from a position close to the origin position of the workpiece W, the machining of the workpiece W can be started while keeping the moving distance of the workpiece W small.

  Then, the workpiece W is moved and positioned in the X-axis and Y-axis directions to process the workpiece W, and when the workpiece W is largely moved to the workpiece unloading quadrant (third quadrant), that is, the workpiece W is positioned in the workpiece unloading quadrant. When the workpiece W is processed at the last position near the processing position, the workpiece W can be moved and positioned efficiently from a series of processing of the workpiece W to the workpiece unloading quadrant. Thus, the machining efficiency of the workpiece W can be improved.

  As described above, when the workpiece W is being processed by moving the workpiece W in the X and Y axis directions, the workpiece carry-in device 73 sets a new workpiece W to be processed next as shown in FIG. It can be carried in advance and prepared in the upper space of the machining start quadrant. Therefore, as described above, when the workpiece W that has been processed is moved to the workpiece unloading quadrant and the workpiece W is clamped and unloaded by the workpiece unloading clamp 97 of the workpiece unloading device 75, the carriage base 15 and each workpiece clamp 55 Is returned to the initial position, the workpiece W can be placed on the tables 9 and 13 of the plate material processing machine 1 simultaneously.

  As already understood, according to the present embodiment, a series of operations of loading the workpiece W into the plate material processing machine 1, positioning the workpiece W at the origin, starting machining the workpiece W, and moving and positioning the workpiece W to the unloading position are performed. This can be performed efficiently without waste, and the machining efficiency of the workpiece W can be improved. Then, the work W is carried in because the work W prepared in advance in the upper space of the machining start quadrant is placed on the tables 9 and 13 in the plate material processing machine 1 by the work preparation device (work loading device). The time from the end of processing of the workpiece W to the start of processing of the next workpiece can be shortened, and the efficiency can be improved.

  Further, in the configuration according to the embodiment, the moving table 13 and the carriage base 15 are moved in the Y-axis direction by a pair of left and right ball screw mechanisms provided below the moving table 13. Can be used effectively. The ball screw mechanism has a configuration in which a ball nut 47 screwed to a ball screw 43 provided long in the Y-axis direction is integrated with a cylindrical rotor provided in the hollow motor 49. Even with a configuration that is long in the Y-axis direction, the ball screw 43 is less vibrated and can be moved at high speed by rotating the hollow motor 49 at high speed. Further, the hollow motor 49 can be reduced in size.

  As described above, when the moving table 13 and the carriage base 15 are moved in the Y-axis direction, the carriage base 15 and the like are guided by the precision guide rail 59 and are in a state where fine movement in the X-axis direction is restricted. 15 or the like can be positioned with high accuracy.

  Further, the plurality of workpiece clamps 55 are supported individually and synchronously through a hollow motor 57 integrally provided with a ball nut in the X-axis direction ball screw 51 provided in the carriage base 15. Therefore, the interval adjustment of the work clamp 55 corresponding to the dimension of the work W can be easily performed. Further, when machining the work position of the workpiece W, when there is a possibility that the machining tool and the workpiece clamp 55 may interfere with each other, the clamping of the workpiece W by the workpiece clamp 55 which may cause the interference is released. It can be easily moved to an arbitrary position, and the dead zone of the workpiece W can be eliminated.

  Furthermore, when changing the clamping position of the workpiece W by the plurality of workpiece clamps 55, the other workpiece clamps 55 are moved in the X-axis direction in a state where the workpiece W is clamped by at least two desired workpiece clamps 55, By repeatedly exchanging the workpiece clamp that clamps the workpiece W and the workpiece clamp that moves in the X-axis direction, the clamping position of the workpiece W by the plurality of workpiece clamps 55 is set, for example, on one end side of the workpiece W in the X-axis direction. The position can be changed to the position on the other end side in the X-axis direction, and a workpiece that is long in the left-right direction (X-axis direction) can be sequentially processed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory plan view schematically and schematically showing a plate material processing machine according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is front explanatory drawing which showed notionally and schematically the board | plate material processing machine which concerns on embodiment of this invention. It is a schematic plane explanatory drawing which shows carrying out of the workpiece | work after a process by a board | plate material processing machine, and the preparation state of the following workpiece | work. It is a schematic plane explanatory view showing an example of a conventional plate material processing machine. It is a schematic side view showing an example of a conventional plate material processing machine. It is explanatory drawing of the problem in the conventional board | plate material processing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Board | plate material processing machine 3 Frame 7 Processing position 9 Fixed table 13 Moving table 15 Carriage base 17 Y-axis motor 19,55 Work clamp 23 X-axis motor 25 Positioning pin 27 Work drawing device 43,51 Ball screw 47 Ball nut 49,57 Hollow motor 59 Precision Guide Rail 65 Y-axis Positioning Pin 67 X-axis Positioning Pin 71 Tool Unit 73 Work Loading Device 75 Work Loading Device

Claims (9)

  A machining method for machining a workpiece by moving and positioning a plate-like workpiece in the X-axis and Y-axis directions by a workpiece movement positioning device with respect to a machining position in a plate material processing machine, wherein the X-axis and Y pass through the machining position. An arbitrary quadrant of the first, second, third, and fourth quadrants defined by the axis is set as a machining start quadrant, and machining is started from a position near the machining position of the workpiece positioned in the machining start quadrant, When moving a workpiece to a workpiece unloading quadrant other than the machining start quadrant and unloading the workpiece, the vicinity of the position close to the machining position of the workpiece when positioned in the workpiece unloading quadrant is processed last. Processing method for plate workpiece.   2. The plate workpiece processing method according to claim 1, wherein a next workpiece is prepared in an upper space of the machining start quadrant before the workpiece movement positioning device returns to the machining start quadrant. Machining method for workpieces.   A machining method for machining a workpiece by moving and positioning a plate-like workpiece in the X-axis and Y-axis directions by a workpiece movement positioning device with respect to a machining position in a plate material processing machine, wherein the X-axis and Y pass through the machining position. Arbitrary quadrant of the first, second, third, and fourth quadrants defined by the axes is set as the machining start quadrant, and the workpiece positioned in the machining start quadrant is provided so as to be freely raised and lowered with respect to the upper surface of the work table in the plate material processing machine. After moving and contacting the positioning pins in the X-axis direction and Y-axis direction by the workpiece movement positioning device to perform origin positioning, the workpiece is clamped by the workpiece clamp provided in the workpiece movement positioning device, and the workpiece is X-axis , A processing method for a plate-shaped workpiece characterized by starting the processing of the workpiece by moving in the Y-axis direction.   The plate workpiece processing method according to claim 3, wherein an origin position when the workpiece origin is positioned and the machining position coincide with each other.   A plate material processing machine comprising a work table that supports a plate-shaped workpiece, a machining position for machining the workpiece, and a workpiece movement positioning device that moves and positions the workpiece in the X-axis and Y-axis directions with respect to the machining position. , A positioning pin for positioning the workpiece in the X-axis direction and the Y-axis direction on the X-axis line and the Y-axis line passing through the machining position or a position close to the X-axis line and the Y-axis line is provided on the workpiece pass line. A plate material processing machine characterized in that it can be moved up and down.   6. The plate material processing machine according to claim 5, further comprising a workpiece preparation device that prepares a next workpiece in an upper space of a region where the workpiece is brought into contact with the positioning pin to perform positioning.   The plate material processing machine according to claim 5 or 6, wherein the carriage base provided in the workpiece movement positioning device is moved in the Y-axis direction so as to be long in the Y-axis direction and parallel to each other at a lower position of the work table. A ball nut that is rotatably engaged with each of the ball screws is integrated with a rotor provided in a motor that is integrally attached to the carriage base, and the X axis of the carriage base A plate material processing machine comprising a guide rail for preventing fine movement in the direction and guiding in the Y-axis direction.   8. The plate material processing machine according to claim 5, wherein the workpiece movement positioning device moves a plurality of workpiece clamps in the X-axis direction individually or in synchronization with a carriage base that is movable in the Y-axis direction. Each work clamp is freely provided, and each of the work clamps includes a ball nut that is rotatably engaged with a ball screw long in the X-axis direction provided in the carriage base, and a rotor provided in a motor that is integrally attached to each work clamp. Is a plate material processing machine characterized by being integrated with.   The plate material processing machine according to claim 5, 6, 7 or 8, further comprising a tool unit including a plurality of tools in an upper space on the workpiece movement positioning device side in the Y-axis direction with respect to the processing position, A plate material processing machine comprising: each tool provided in a tool unit, which can be indexed and positioned without being unevenly distributed in the X-axis direction with respect to the processing position.

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