JP2018187719A - Edge processing tool, and laser punch compound machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an edge processing tool which can maintain smooth rotation of a ball for a long period of time by suppressing generation of rotation failure of the ball caused by foreign matter generated in processing a cut edge.SOLUTION: An edge processing tool 1 includes a ball 11 which contacts with and crushes a cut edge E generated in cutting a plate-like workpiece W in laser processing, a ball support body 12 which rotatably supports the ball 11, and a suction hole 14 which is arranged in a periphery of the ball 11 and sucks foreign matter X.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an edge processing tool and a laser / punch combined machine.

  When a plate-shaped workpiece is thermally cut by laser light, a cutting edge is generated. Such a cutting edge may have a sharp shape. Further, in the vicinity of the cutting edge on the lower surface side of the workpiece, there may be a burr such as a so-called dross, which is a solidified slag generated during the thermal cutting process. Such a cutting edge becomes an obstacle when another member is overlapped, and there is a possibility that the processing accuracy may be lowered in a later process. Therefore, an edge process is performed to round the corner of the cutting edge and remove burrs. There is a need. For this reason, using an edge processing tool that supports the ball rotatably, the cutting edge is sandwiched between the upper and lower balls, and the ball is moved along the cutting edge to crush the cutting edge with the lower ball to remove burrs. There has been proposed a removal method (see, for example, Patent Document 1).

JP 2014-226687 A

  When the cutting edge is processed by the edge processing tool described in Patent Document 1, foreign matter is generated from burrs or the like, and the generated foreign matter may fall from the cutting edge and adhere to the edge processing tool. In addition, an oxide film may be formed on the cutting edge depending on the conditions of the thermal cutting process. When the cutting edge is processed with the above-described ball, a part of the oxide film formed on the cutting edge is peeled off and dropped. May adhere to processing tools. If foreign matter such as a dropped burr or an oxide film enters the gap between the ball and the ball support, the rotation of the ball may be hindered and the burr may not be removed smoothly. Further, if the edge processing tool is continuously used in a state where the ball is in a poor rotation, the edge processing tool may be adversely affected.

  In view of the circumstances as described above, the present invention suppresses the occurrence of defective rotation of the ball due to foreign matters generated when the cut edge is processed, and enables edge processing capable of maintaining smooth rotation of the ball over a long period of time. The purpose is to provide tools.

  An edge processing tool according to the present invention is provided with a ball that contacts and crushes a cutting edge generated when a plate-like workpiece is cut by laser processing, a ball support that rotatably supports the ball, and a periphery of the ball. A suction hole for sucking foreign matter generated by crushing the edge with a ball.

  In the edge processing tool, a plurality of suction holes may be provided along a concentric circle centered on the ball. The edge processing tool may include a tool body that holds a ball support, and the suction hole may be provided in the vicinity of the ball support in the tool body. In the edge processing tool, the tool body may include a recess around the ball support, and the suction hole may be provided in the recess.

  A laser / punch combined machine according to the present invention includes a laser head that irradiates a laser beam to process a workpiece, a processing tool that is sent out by the punch head to process the workpiece, and transfers the workpiece to the laser head or the processing tool. The above-mentioned edge processing tool is used as a processing tool.

  According to the edge processing tool and the laser / punch combined machine according to the present invention, the foreign matter generated by the processing of the cutting edge after the laser processing is sucked by the suction hole, so that the foreign matter is prevented from adhering to or near the ball. can do. Thereby, since the smooth rotation of the ball is maintained, the edge processing tool can be used continuously for a long time. In addition, since the edge processing tool can be used for a long time, the edge processing efficiency and the work processing efficiency can be improved.

  In addition, when a plurality of suction holes are provided along a concentric circle centered on the ball, the suction holes are efficiently arranged in the vicinity of the ball, so that foreign matters generated during the processing of the cutting edge can be effectively sucked. it can. In addition, when the tool body for holding the ball support is provided and the suction hole is provided in the vicinity of the ball support in the tool body, since the suction hole is provided in the tool body, the ball support is replaced with respect to the tool body. Even in this case, a suction hole can be arranged in the vicinity of the ball. In addition, when the tool body has a recess around the ball support and the suction hole is provided in the recess, the foreign matter dropped from the cutting edge is received by the recess, so the foreign matter is efficiently removed by the suction hole provided in the recess. Can be aspirated.

It is sectional drawing which shows the edge processing tool which concerns on 1st Embodiment. It is a perspective view which shows a lower tool. (A) And (B) is a figure which shows a cutting | disconnection edge, (A) is a top view, (B) is sectional drawing. It is sectional drawing which shows the conventional edge processing tool. (A) to (C) are diagrams showing the operation of the edge processing tool. It is a side view of the laser punch composite machine which concerns on 2nd Embodiment. FIG. 7 is a top view of the laser / punch combined machine of FIG. 6. It is a perspective view which shows the other example of an edge processing tool. It is a perspective view which shows the other example of an edge processing tool.

  Hereinafter, embodiments will be described with reference to the drawings. In the following drawings, directions in the drawings will be described using an XYZ coordinate system. In this XYZ coordinate system, the vertical direction is the Z direction, and the horizontal direction is the X direction and the Y direction. For each of the X direction, the Y direction, and the Z direction, the side of the arrow is appropriately referred to as a + side (eg, + X side), and the opposite side is referred to as a − side (eg, −X side).

[First embodiment]
FIG. 1 is a cross-sectional view showing an edge processing tool according to the first embodiment. FIG. 2 is a perspective view showing the lower edge processing tool. The edge processing tool 1 of this embodiment includes an upper tool 2 and a lower tool 3. The edge processing tool 1 is a tool used for processing a cutting edge E generated when a plate-like workpiece W is cut by laser processing. The edge processing tool 1 is provided in the laser punch composite machine LP. The laser punch composite machine LP will be described in a second embodiment.

  First, the cutting edge E will be described. 3A and 3B are diagrams showing cutting edges. FIG. 3A is a top view. FIG. 3B is a cross-sectional view. When the workpiece W is thermally cut by laser light, as shown in FIG. 3A, the metal material is removed and processed into a slit shape, and a cutting edge E is generated along the processed portion. The width L1 of the slit is about 0.2 to 0.3 mm. As shown in FIG. 3B, the cutting edge E may have a sharp shape at the upper end U and the lower end L thereof. Further, as shown in FIG. 3 (B), a burr B such as a protrusion generally called dross, which is formed by solidifying slag generated during thermal cutting, is formed at or near the lower end L of the cutting edge E. It may occur. The dross is generated on the lower surface side of the workpiece W at the cutting edge E because the workpiece W is melted in the thermal cutting process and the melted material is blown downward from the upper portion of the workpiece W with the assist gas. This is because slag tends to accumulate. Since such a cutting edge E is not preferable as described above, it is necessary to perform a process of rounding the cutting edge E after the laser processing and to perform a process of removing burrs. The edge processing tool 1 of this embodiment can crush the upper end U and the lower end L of the cutting edge E into a smooth shape. At this time, the burr B can also be removed (FIG. 5 ( C)). In this specification, the removal of the burrs B means that the burrs B are at least reduced or eliminated.

  Returning to the description of FIG. 1, the upper tool 2 includes a tool body 4, a ball 5, and a ball support 6 that rotatably supports the ball 5. The upper tool 2 is disposed on the upper surface side (+ Z side) of the workpiece W and is used for processing the upper end portion L (see FIG. 3B) of the cutting edge E. The upper tool 2 is used by being mounted on a tool holder (tool holder) of a processing apparatus such as a tool holder 30a (see FIG. 6) of the laser / punch combined machine LP, for example. The shape of the tool body 4 is set to a shape that can be mounted on the tool holding portion of the processing apparatus. The tool body 4 of this embodiment is cylindrical. The tool body 4 holds a ball support 6. The tool body 4 detachably holds the ball support 6. As a result, the ball support 6 can be exchanged. The ball 5 and the ball support 6 are constituted by free bearings. The ball 5 is a steel ball, for example. The ball support 6 is disposed at the lower end 4 a of the tool body 4. The ball support 6 has a cylindrical outer shape. The ball support 6 supports the ball 5 so as to be rotatable in all directions by holding the upper portion of the ball 5 via a plurality of balls 7. The ball 5 and the ball support 6 are disposed in the center portion of the tool body 4 when viewed from below. The ball support 6 is arranged on the tool body 4 so that the ball 5 protrudes downward from the lower end 4 a of the tool body 4. When the edge processing tool 1 is used for processing the cutting edge E, the ball 5 comes into contact with the upper end U (see FIG. 3B) of the cutting edge E and crushes the upper end U of the cutting edge E, so that the ball 5 is smooth. Can be. The diameter of the ball 5 is set larger than the width L1 of the cutting edge E (see FIG. 3A).

  The lower tool 3 includes a tool body 10, a ball 11, a ball support 12, a recess 13, and a suction hole 14 (see FIG. 1). The lower tool 3 is disposed on the lower surface side (−Z side) of the workpiece W and is used for processing the lower end portion L (see FIG. 3B) of the cutting edge E. The lower tool 3 is used by being mounted on a tool holder (tool holder) of a processing apparatus such as a tool holder 30b (see FIG. 6) of the laser / punch combined machine LP, for example. The tool body 10 is set to a shape that can be attached to the tool holding portion of the processing apparatus. The tool body 10 of this embodiment is cylindrical (refer FIG. 2). The tool body 10 holds a ball support 12. The tool body 10 detachably holds the ball support 12. Thereby, the ball support 12 can be replaced. The ball 11 and the ball support 12 are constituted by free bearings. The ball 11 is, for example, a steel ball. The ball support 12 is disposed on the upper end portion 10a of the tool body 10 (see FIG. 2). The ball support 12 has a cylindrical outer shape. The ball support 12 supports the ball 11 rotatably in all directions by holding the lower portion of the ball 11 via a plurality of balls 16 at the upper end 12a. The ball 11 and the ball support 12 are disposed in the central portion of the tool body 10 when viewed from above. The ball support 12 is disposed on the tool body 10 so that the ball 11 protrudes upward from the upper end portion 10 a of the tool body 10. When the edge processing tool 1 is used for processing the cutting edge E, the ball 11 comes into contact with the lower end L of the cutting edge E (see FIG. 3B) and crushes the lower end L of the cutting edge E to make it smooth. Can be. The diameter of the ball 11 is set larger than the width L1 of the cutting edge E (see FIG. 3A). The diameter of the ball 11 is set smaller than the diameter of the ball 5. The diameters of the balls 5 and 11 can be arbitrarily set as long as they are larger than the width L1 of the cutting edge E (see FIG. 3A). For example, the diameter of the ball 11 may be the same as that of the ball 5 or may be set larger than the diameter of the ball 5.

  Here, edge processing by a conventional edge processing tool will be described. FIG. 4 is a sectional view showing a conventional edge processing tool. The conventional edge processing tool ET includes an upper tool 2 and a lower tool 3A. The upper tool 2 is the same as the upper tool 2 of FIG. The lower tool 3A includes a tool body 10A, a ball 11A, and a ball support 12A that rotatably supports the ball 11A. The edge processing tool ET brings the ball 5 of the upper tool 2 and the ball 11A of the lower tool 3A into contact with the cutting edge E and presses the upper end U and lower end L (see FIG. 3B) of the cutting edge E. It is a tool that smoothes the upper end U and lower end L of the cutting edge E by crushing.

  The inventor of the present application conducted research in order to improve the edge processing tool ET, and obtained the following knowledge. For example, when the cutting edge E is processed by the edge processing tool ET, the foreign matter X is generated, and the generated foreign matter X may fall from the cutting edge E and adhere to the edge processing tool ET. In addition, an oxide film may be formed depending on the conditions of the thermal cutting process, and when the cutting edge E is processed, a part of the oxide film may be peeled off and may adhere to the edge processing tool 1. If the fallen foreign matter X enters the gap between the ball 11A and the ball support 12A, the rotation of the ball 11A may be hindered and the burr B may not be removed smoothly. Further, if the edge processing tool is continuously used while the ball 11A is in a rotation failure state, the edge processing tool may be adversely affected. Among the foreign matter X, the foreign matter X derived from the oxide film may be in a fine powder form, and may easily enter between the ball support 12A and the ball 11A, and may have the above-described adverse effects.

  Therefore, the inventor of the present application provides a mechanism for removing the foreign matter X generated by crushing the cutting edge E with the ball 11 in the edge processing tool 1 (lower tool 3) of the present embodiment. The bad influence by is suppressed. As shown in FIG. 2, a recess 13 is provided in the upper end portion 10 a of the tool body 10 of the lower tool 3. The recess 13 can receive and accommodate the foreign matter X dropped from the cutting edge E. The concave portion 13 is constituted by a wall portion 10c provided along the circular outer edge of the inclined surface 10d (inclined portion) of the ball support 12, the upper surface 10b of the tool body 10, and the upper end portion 10a of the tool body 10 ( (See FIG. 2). As shown in FIG. 1, the upper end portion 12a (see FIG. 2) of the ball support 12 has a trapezoidal cross section in the XZ plane. As shown in FIG. 2, the ball support 12 has an inclined surface 12 c that is inclined in a direction away from the center of the ball support C as it goes downward from above. Further, the wall portion 10 c of the tool body 10 has a shape protruding upward from the upper surface 10 b of the tool body 10. The wall portion 10c has an inclined surface 12c (inclined portion) that is inclined in a direction approaching the center of the tool body 10 from the upper side to the lower side. When the concave portion 13 has the inclined surface 10d or the inclined surface 12c as described above, the foreign matter X can be guided to the upper surface 10b of the tool body, which is the bottom of the concave portion 13, and can be easily collected (accommodated).

  The upper end portion 10a of the tool body 10 is provided with a suction hole 14 for sucking the foreign matter X. The suction hole 14 is provided around the ball 11. A plurality of suction holes 14 are provided along a concentric circle with the ball 11 as the center. The suction hole 14 is circular when viewed from above. In the present embodiment, seven suction holes 14 are provided at equal intervals along a concentric circle centered on the ball 11. The suction hole 14 is provided in the vicinity of the ball support 12. The suction hole 14 is provided on the upper surface 10 b of the tool body 10. The suction hole 14 penetrates the tool body 10 and is connected to a suction device via a pipe or the like. The suction hole 14 sucks and removes the foreign matter X by a suction force by a suction device (not shown). The foreign matter X sucked into the suction hole 14 is collected in a predetermined storage location. Thereby, the foreign material X can be processed easily.

  By the way, in the processing of the cutting edge E by the ball 11, the foreign matter X is easily accumulated in the vicinity of the periphery of the ball 11 and the ball support 12. In the lower tool 3 of the present embodiment, since the suction holes 14 are provided around the ball 11, the foreign matter X around the ball 11 can be sucked effectively. Thereby, it can suppress that the foreign material X adheres to the ball | bowl 11 or the ball | bowl 11 vicinity. Moreover, since the smooth rotation of the ball | bowl 11 is maintained by this, the edge processing tool 1 can be used continuously for a long period of time. Moreover, since the edge processing tool 1 can be used for a long time, the processing efficiency of the cutting edge E and the processing efficiency of the workpiece W can be improved. In the lower tool 3 of the present embodiment, a plurality of suction holes 14 are provided along a concentric circle with the ball 11 as the center. In this case, since the suction hole 14 is efficiently arranged in the vicinity of the ball, the foreign matter X generated during the processing of the cutting edge E can be sucked effectively. Further, the lower tool 3 of this embodiment includes a tool body 10 that holds the ball support 12, and a suction hole 14 is provided in the tool body 10 in the vicinity of the ball support 12. In this case, since the suction hole 14 is provided in the tool body 10, the suction hole 14 can be disposed in the vicinity of the ball 11 even when the ball support 12 is replaced with respect to the tool body 10. In the lower tool 3 of this embodiment, the tool body 10 includes a recess 13 around the ball support 12, and the suction hole 14 is provided in the recess 13. In this case, since the foreign matter X that has fallen from the cutting edge E is received by the concave portion 13, the foreign matter X can be efficiently sucked by the suction hole 14 provided in the concave portion 13.

  Next, the operation of the edge processing tool 1 will be described. FIGS. 5A to 5C are diagrams illustrating the operation of the edge processing tool 1. When the edge processing tool 1 is used for edge processing, as shown in FIG. 5A, the upper tool 2 and the lower tool 3 are respectively transferred to the workpiece transfer unit 23 (see FIG. 5) of the laser / punch combined machine LP. 6) and the like, the workpiece W is positioned and positioned immediately above and immediately below the cutting edge E portion to be processed. Next, in the edge processing tool 1, the upper tool 2 and the lower tool 3 are respectively a punch head 22 (see FIG. 6) of the laser / punch combined machine LP, and an elevating mechanism (not shown) for moving the lower tool 3 up and down. ) And the like, the ball 5 of the upper tool 2 comes into contact with the upper end portion of the cutting edge E and crushes the upper end portion of the cutting edge E, and the ball 11 of the lower tool 3 moves to the lower end of the cutting edge E. Contact the part and crush the lower end part of the cutting edge E. Thereby, the burrs B near the cutting edge E are also removed. Then, with the cutting edge E sandwiched between the ball 5 of the upper tool 2 and the ball 11 of the lower tool 3, the workpiece W such as the punch head 22 (see FIG. 6) of the laser / punch composite machine LP is driven. By moving the workpiece W so as to correspond to the position of the cutting edge E, the above processing is continuously performed on all the cutting edges E. If the cutting edge E is not a continuous shape, the upper tool 2 and the lower tool 3 move to a position away from the workpiece W shown in FIG. 5A, and then the process shown in FIG. 5B again. Are arranged immediately above and immediately below the portion of the cutting edge E to be processed, and the processing of the cutting edge E is performed. By the above process, the cutting edge E has a smooth shape at the upper end U and the lower end L as shown in FIG. 5C, and the burr B at the lower end L of the cutting edge E is removed. (This processing is referred to as “edge processing” or “cut edge processing”). During the edge processing, as described above, the foreign matter X derived from the burrs B and the oxide film is generated. The lower tool 3 of the present embodiment can suck and remove the foreign matter X from the suction hole 14 by suction of a suction device (not shown) during edge processing. Thereby, the lower tool 3 of the present embodiment can perform the edge processing of the cutting edge E while suppressing the adverse effect of the foreign matter X described above.

  As described above, the edge processing tool 1 of the present embodiment sucks the foreign matter X generated by the processing of the cutting edge E after the laser processing through the suction hole 14, so that the foreign matter X adheres to the ball 11 or the vicinity of the ball 11. Can be suppressed. Thereby, since the smooth rotation of the ball | bowl 11 is maintained, the edge processing tool 1 can be used continuously for a long period of time. Further, since the edge processing tool 1 can be used for a long time, the edge processing efficiency and further the work efficiency of the workpiece W can be improved.

[Second Embodiment]
In the present embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified. 6 and 7 are views showing a laser / punch combined machine according to the second embodiment, FIG. 6 is a side view, and FIG. 7 is a top view. FIG. 6 shows an example in which the upper tool 2 and the lower tool 3 are arranged at the punching position P2. In FIG. 6, the fixed table 32 a, the movable table 32 b, the guide rail 34, and the like are partially omitted.

  The laser / punch combined machine LP of the present embodiment includes a laser head 21 that processes a workpiece W by irradiating laser light, a processing tool T that is sent out by the punch head 22 and processes the workpiece W, and the laser head 21 or processing. It has the workpiece transfer part 23 which transfers a workpiece | work with respect to the tool T, and the control part 24 which controls operation | movement of each part, As the processing tool T, the edge processing tool 1 (upper tool 2, lower tool) of 1st Embodiment is used. 3) is used (see FIG. 6).

  The laser / punch complex machine LP includes a laser processing unit LA that performs laser processing such as thermal cutting processing on the workpiece W by the laser head 21, and a punch processing unit P that performs punch processing on the workpiece W by the processing tool T. , And perform laser processing and punch processing on the workpiece W (see FIG. 6). The laser / punch complex machine LP performs laser processing at the laser processing position P1, and performs punch processing at the punch processing position P2 (see FIG. 7). The workpiece W is positioned at the laser processing position P1 or the punching position P2 by the workpiece transfer unit 23. The laser processing position P1 and the punch processing position P2 are fixed.

  The laser processing portion LA is disposed at a laser processing position P1 set at the front end portion on the + Y side of the upper frame portion 26a of the C-shaped frame 26 as viewed from the −X side, and is a laser that irradiates laser light downward. A head 21 is provided. The laser head 21 is connected to a laser oscillator (not shown) installed on a floor surface away from the frame 26 via a transmission path (not shown) such as an optical fiber for guiding laser light from the laser oscillator to the laser head 21. Connected. The laser processing unit LA is controlled by the control unit 24 and outputs laser light having a predetermined output from the laser head 21 to the workpiece W, thereby performing laser processing on the workpiece W. When the laser beam is emitted from the laser head 21, the laser processing unit LA simultaneously jets the assist gas downward and blows the melt of the workpiece W by the laser beam to the lower side of the workpiece W. I do.

  The punching portion P is disposed on the −Y side of the laser processing portion LA. The punching portion P includes upper and lower turrets 28a and 28b provided on the upper frame portion 26a and the lower frame portion 26b of the frame 26. The upper and lower turrets 28a, 28b are supported so as to be rotatable about vertical axes that are concentric with each other. The upper and lower turrets 28a and 28b are rotated by driving of a driving device (not shown). The rotation of the upper and lower turrets 28a and 28b is controlled by the control unit 24, respectively.

  The upper and lower turrets 28a and 28b are provided with tool holders 30a and 30b that can hold a plurality of processing tools T for processing the workpiece W, respectively. The processing tool T of the present embodiment is a plurality of upper and lower molds for punching or forming, the upper tool 2 and the lower tool 3 of the first embodiment. The upper and lower tool holders 30a and 30b are arranged side by side in the circumferential direction in the upper and lower turrets 28a and 28b, respectively. The upper tool holder 30a arranges the machining tool T above the workpiece W with the machining surface facing downward. The lower tool holder 30b arranges the processing tool T below the workpiece W with the processing surface facing upward. The lower tool 3 can be moved up and down by an elevating mechanism (not shown) that moves the lower tool 3 up and down. An arbitrary mechanism can be used as the lifting mechanism. For example, the lower mold lifting / lowering means described in Patent Document 1 or an actuator may be used.

  Each of the upper tool 2 and the lower tool 3 may be provided, or a plurality of tools having different ball sizes may be provided. Further, whether or not the upper tool 2 is provided is arbitrary.

  The processing tools T held by the tool holders 30a and 30b are respectively configured so that the upper and lower turrets 28a and 28b are rotated in the circumferential direction by driving of a driving device (not shown), so that the processing tool T used for punching is changed. It is arranged at the punching position P2.

  In the upper turret 28a, the processing tool T arranged at the punching position P2 is sent downward from the tool holder 30a by the punch head 22. The punch head 22 is supported on the upper frame portion 26a by a guide member (not shown) so as to be lifted and lowered by driving a driving device (not shown) such as a ram.

  The punching section P drives the punch head 22 downward to send the processing tool T of the upper turret 28a disposed at the punching position P2 downward, so that the processing tool T of the upper turret 28a and the lower Punching is performed by sandwiching the workpiece W from above and below with the machining tool T of the turret 28b.

  The workpiece W is supported from below by the fixed table 32a and the movable table 32b (see FIG. 7). The fixed table 32a and the movable table 32b are each provided with a free ball or a brush on the upper surface. The fixed table 32a and the movable table 32b respectively support the workpiece W so as to be movable (slidable) in the horizontal direction (X direction, Y direction) on the upper surface.

  The fixed table 32a is disposed between the upper and lower turrets 28a and 28b. The length in the Y direction of the fixed table 32a is set from the end in the −Y direction of the upper and lower turrets 28a and 28b to the end in the + Y direction of the movable region of the work holder 23c shown in FIG. The movable table 32b is disposed on the + X side and the −X side of the fixed table 32a. The movable table 32b is supported so as to be movable in the Y direction by a guide rail 34 provided in the Y direction below the carriage 23a.

  The workpiece transfer unit 23 transfers the workpiece W in the horizontal direction (X direction, Y direction). The workpiece transfer unit 23 includes a carriage 23a that moves in the Y direction, and a cross slide 23b that is provided on the −Y side of the carriage 23a and moves in the X direction with respect to the carriage 23a. The cross slide 23b is provided with a plurality of work holders 23c for holding the + Y side end of the work W on the −Y side.

  The carriage 23a and the movable table 32b are moved in the Y direction along the guide rail 34 by a driving device (not shown). The cross slide 23b is moved in the X direction with respect to the carriage 23a by a driving device (not shown). The workpiece transfer unit 23 moves the carriage W in the X direction by moving the carriage 23a in the Y direction and the cross slide 23b in the X direction with respect to the carriage 23a while holding the workpiece W with the workpiece holder 23c. Move in the Y direction (horizontal direction).

  The control unit 24 includes a central processing unit (CPU), a main memory, and a storage device such as a hard disk. The storage device stores programs and the like necessary for various controls. For example, the control unit 24 rotates the upper and lower turrets 28a and 28b, raises and lowers the lower tool 3, drives the punch head 22, outputs the laser of the laser head 21, drives the work transfer unit 23, drives the movable table 32b, and the like. Each operation of each part of the laser / punch complex machine LP is controlled. For example, the control unit 24 performs edge processing for crushing the cutting edge E with the edge processing tool 1 (the upper tool 2 and the lower tool 3) in the punch processing unit P with respect to the workpiece W after laser processing in the laser processing unit LA. Is executed. The control unit 24 causes the edge processing to be performed on the workpiece W after laser processing and before punching. This edge processing may be executed by a user's manual operation.

  Next, the operation of the laser / punch combined machine LP will be described. First, the workpiece W is carried into the laser / punch combined machine LP. The workpiece W is placed on the fixed table 32a and the movable table 32b when being carried into the laser / punch combined machine LP. Subsequently, the + Y side end of the workpiece W is gripped by the workpiece holder 23c.

  Subsequently, the carriage 23a and the cross slide 23b of the workpiece transfer unit 23 transfer the workpiece W in the horizontal direction under the control of the control unit 24, and place (position) the machining location of the workpiece W at the laser machining position P1. Subsequently, under the control of the control unit 24, the laser processing unit LA irradiates the workpiece W with laser processing such as cutting processing by irradiating laser light with a predetermined output from the laser head 21.

  The control unit 24 repeatedly performs the workpiece W transfer by the workpiece transfer unit 23 and the laser machining operation of the workpiece W by the laser head 21 based on the machining program (NC data) stored in advance in the storage device. Run. As a result, the workpiece W is subjected to laser processing.

  Subsequently, under the control of the control unit 24, edge processing of the cutting edge E generated by laser processing is performed. The edge processing of the cutting edge E is performed based on a machining program. First, the carriage 23a and the cross slide 23b of the workpiece transfer unit 23 transfer the workpiece W in the horizontal direction under the control of the control unit 24, and perform edge processing at the cutting edge E as shown in FIG. The position is arranged (positioned) at the punching position P2.

  At the same time as or before the transfer of the workpiece W by the workpiece transfer unit 23 described above, the control unit 24 drives the upper and lower turrets 28a and 28b to place the upper tool 2 and the lower tool 3 at the punching position P2. .

  Subsequently, the control unit 24 lowers the punch head 22, sends the upper tool 2 downward from the tool holder 30a of the upper turret 28a, and contacts the upper end U of the cutting edge E of the workpiece W. Moreover, the control part 24 raises the lower tool 3 with an raising / lowering mechanism (not shown), and makes it contact the lower end part L of the cutting edge E of the workpiece | work W). As a result, the cutting edge E of the workpiece W is sandwiched between the ball 5 of the upper tool 2 and the ball 11 of the lower tool 3 as shown in FIG. 5B, and as shown in FIG. The cutting edge E is crushed, and the upper end U and the lower end L (see FIG. 3C) of the cutting edge E become smooth.

  Subsequently, the carriage 23a and the cross slide 23b of the work transfer unit 23 are controlled by the control unit 24 in the state where the cutting edge E is sandwiched between the ball 5 of the upper tool 2 and the ball 11 of the lower tool 3. The workpiece W is transferred along the cutting edge E. Thereby, the edge process of the cutting edge E formed continuously is performed.

  When the cutting edge E is discontinuous, the control unit 24 raises the punch head 22 to raise the upper tool 2, and lowers the lower tool 3 by an elevating mechanism (not shown) to remove the workpiece W from the workpiece W. The ball 5 of the upper tool 2 and the ball 11 of the lower tool 3 are retracted. Subsequently, the control unit 24 transfers the workpiece W by the workpiece transfer unit 23, arranges (positions) a position where edge processing is performed next at the punching position P2, and the ball 5 of the upper tool 2 and the lower tool 3 are positioned. The workpiece transfer section 23 transfers the workpiece W along the cutting edge E in this state. Thereby, the edge process of the cutting edge E formed discontinuously is performed.

  The laser / punch complex machine LP performs edge processing on the entire cutting edge E by repeating the above operation. Thereby, in all of the cutting edges E, the cutting edge E is crushed as shown in FIG. 5C, and the upper end U and the lower end L of the cutting edge E (see FIG. 3C) become smooth, Burr B is removed.

  During this edge processing, the foreign matter X is generated as described above and falls to the lower tool 3, but the foreign matter X is removed from the suction hole 14 by suction of a suction device (not shown), and the foreign matter X is removed. Thereby, the laser punch composite machine LP of the present embodiment can perform the edge processing of the cutting edge E while suppressing the adverse effect of the foreign matter X described above. For example, it is possible to suppress the foreign matter X from adhering to the ball 11 or the vicinity of the ball 11. For example, since the smooth rotation of the ball 11 is maintained, the edge processing tool 1 can be used continuously for a long period of time. Further, for example, since the edge processing tool 1 can be used for a long time, the edge processing efficiency and further the work efficiency of the workpiece W can be improved.

  The foreign matter X sucked into the suction hole 14 is collected in a predetermined storage location (storage container) (not shown). Thereby, the foreign material X can be processed easily. The timing of suction by the suction device is not limited to the above timing, and can be set to any timing. For example, the suction by the suction device may be started before the edge processing or after the edge processing. For example, it is not necessary to crush the cutting edge E in the edge processing. For example, after processing the cutting edge E a plurality of times with the edge processing tool 1, the foreign matter X may be sucked together.

  After the above edge processing, punching is performed in the punching portion P. This machining is performed based on a machining program. First, the carriage 23a and the cross slide 23b of the workpiece transfer unit 23 transfer (i.e., move) the workpiece W in the horizontal direction under the control of the control unit 24, and place (position) the position to be processed at the punching position P2. Simultaneously with or before the transfer of the workpiece W by the workpiece transfer unit 23, the control unit 24 rotationally drives the upper and lower turrets 28a, 28b, selects the processing tool T used for processing, and places it at the punching position P2. . Subsequently, the control unit 24 lowers the punch head 22 and feeds the processing tool T downward from the tool holder 30a of the upper turret 28a, thereby sandwiching the workpiece W by the processing tools T of the upper and lower turrets 28a and 28b. Processing is performed on the workpiece W. By repeating this operation, the workpiece W is punched.

  After the above punching, the workpiece W may be transferred to the outside by another transfer device or the like, or laser processing may be performed again by the laser processing unit LA.

  As described above, the laser / punch combined machine LP of the present embodiment sucks the foreign matter X generated by the edge processing of the cutting edge E after the laser processing through the suction hole 14, so that the foreign matter X near the ball 11 or the ball 11. Can be prevented from adhering. Thereby, since the smooth rotation of the ball | bowl 11 is maintained, the edge processing tool 1 can be used continuously for a long period of time. Further, since the edge processing tool 1 can be used for a long time, the edge processing efficiency and further the work efficiency of the workpiece W can be improved.

  Further, since the laser / punch combined machine LP of the present embodiment includes the control unit 24 that executes a process of crushing the cutting edge E of the workpiece W after laser processing, the processing of the cutting edge E of the workpiece W after laser processing is performed. It can be done efficiently. Further, the laser / punch complex machine LP of the present embodiment performs the edge processing on the workpiece W after the laser processing and before the punch processing. In this case, since the burr B generated at the cutting edge E after the laser processing is removed, it is possible to suppress the deterioration of punching accuracy caused by the burr B.

  Further, since the laser / punch combined machine LP of this embodiment includes the upper and lower turrets 30a and 30b for holding and selecting the processing tool T, the processing tool T can be held and selected efficiently.

  The technical scope of the present invention is not limited to the aspects described in the above-described embodiments. One or more of the requirements described in the above embodiments and the like may be omitted. In addition, the requirements described in the above-described embodiments and the like can be combined as appropriate. In addition, as long as it is permitted by law, the disclosure of all documents cited in the above-described embodiments and the like is incorporated as a part of the description of the text.

  For example, the edge processing tool 1 described above is an example, and other forms may be used. For example, the edge processing tool 1 only needs to include at least the lower tool 3. For example, the edge processing tool 1 may not include the upper tool 2. When the edge processing tool 1 includes only the lower tool 3, the lower tool 3 may be used for processing the upper end of the cutting edge E. Further, the upper tool 2 may include a suction hole for sucking the foreign matter X like the lower tool 3.

  Further, for example, the suction hole 14 is an example of the above-described example, and may be in another form. For example, the size, shape, number, and position of the suction holes 14 can be set arbitrarily. 8 and 9 are perspective views showing other examples of the edge processing tool 1, respectively. For example, the number of the suction holes 14 may not be seven as described above, but may be 1 to 6 or 8 or more. For example, twelve suction holes 14 may be provided at equal intervals along a concentric circle centered on the ball 11 as shown in FIG. 8, or as shown in FIG. Two pieces of the ball 11 may be provided around 12). Further, for example, the shape of the suction hole 14 may not be circular, and may be, for example, a rectangular shape (including a square) or a C shape as viewed from above as shown in FIG. Further, the position of the suction hole 14 may not be the upper surface 10b of the tool body 10, but may be the wall portion 10c of the tool body 10.

  Further, the edge processing tool 1 described above may be used as a processing tool of a processing apparatus such as a punch press. Even in the processing apparatus provided with the edge processing tool 1, the foreign matter X generated by the processing of the cutting edge E after laser processing is sucked by the suction hole 14, so that the foreign matter X is prevented from adhering to the ball 11 or the vicinity of the ball 11. be able to. Thereby, since the smooth rotation of the ball | bowl 11 is maintained, the edge processing tool 1 can be used continuously for a long period of time. Further, since the edge processing tool 1 can be used for a long time, the edge processing efficiency and further the work efficiency of the workpiece W can be improved.

1 ... Edge processing tool 3 ... Lower tool (edge processing tool)
W ... Work E ... Cutting edge X ... Foreign matter B ... Burr 10 ... Tool body 11 ... Ball (lower tool)
12 ... Ball support (lower tool)
13 ... Concave 14 ... Suction hole LP ... Laser / punch combined machine T ... Processing tool 21 ... Laser head 22 ... Punch head 23 ... Work transfer section

Claims (5)

A ball to be crushed in contact with a cutting edge generated when cutting a plate-like workpiece by laser processing; a ball support for rotatably supporting the ball;
A suction hole provided around the ball for sucking foreign matter generated by crushing the cutting edge with the ball;
An edge processing tool comprising:   The edge processing tool according to claim 1, wherein a plurality of the suction holes are provided along a concentric circle centered on the ball. A tool body for holding the ball support;
The edge processing tool according to claim 1, wherein the suction hole is provided in the vicinity of the ball support in the tool body. The tool body includes a recess around the ball support,
The edge processing tool according to claim 3, wherein the suction hole is provided in the recess. A laser head for processing the workpiece by irradiating a laser beam;
A processing tool for processing the workpiece by being sent out by a punch head;
A laser / punch combined machine having a workpiece transfer section for transferring the workpiece to the laser head or the processing tool,
A laser / punch combined machine in which the edge processing tool according to any one of claims 1 to 4 is used as the processing tool.

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