JP5913995B2 - Punch / laser combined processing equipment - Google Patents

Description

  The present invention relates to a punch / laser combined processing apparatus capable of performing both punching and laser processing, and more particularly to a technique for shortening the time required for exchanging a die used for punching.

  Conventionally, a punch / laser combined processing apparatus (hereinafter abbreviated as “combined processing apparatus”) that performs punching and laser processing with a single apparatus has been used (for example, see Patent Document 1). In the combined machining apparatus, the workpiece to be supplied can be operated according to a preset program, the workpiece can be punched by a punching machine, and laser processing can be performed by a laser processing machine. The processing order may be laser processing first and then punch processing.

  In such a complex machining apparatus, in order to punch a workpiece to be supplied, it is necessary to appropriately replace the dies mounted on the upper and lower turrets according to the machining program. Of the molds mounted on the buffer turret (a turret for temporarily storing molds), a mold used for punching is set on the turret using an exchange.

  However, since such a mold exchanging operation is performed in a state where the apparatus is stopped, there arises a problem that the total processing time becomes long. Therefore, it has been proposed to reduce the total processing time by exchanging the mold used for punching during laser processing (that is, while the apparatus is in operation). However, when a die is attached to the turret, it is necessary to insert and remove the shot pin (extraction and insertion operation). When the shot pin is inserted and removed during laser processing, large vibrations occur during insertion and removal (especially during insertion). Will occur and affect laser processing.

  Specifically, since the laser head is affected by vibration caused by shot pin insertion / extraction, problems such as unevenness in the cross section of the workpiece may occur.

JP 2009-18334 A

  As described above, in the conventional punch / laser combined processing apparatus, in order to shorten the total processing time, it has been proposed to replace the mold attached to the turret during the laser processing. . However, when shot pin insertion / extraction is performed at the time of die replacement, a large vibration is transmitted to the laser head or the workpiece due to the vibration generated at this time, resulting in a problem that the accuracy of laser processing is lowered. Was.

  The present invention has been made in order to solve such a conventional problem, and the object of the present invention is to automatically change the mold during laser processing without reducing the accuracy of laser processing, An object of the present invention is to provide a combined punch / laser processing apparatus capable of shortening the processing time.

  In order to achieve the above object, the invention described in claim 1 of the present application is directed to a punch / laser combined machining apparatus that performs both punching and laser machining, wherein a die used for the punching is positioned at a desired position in the turret. A mold automatic changer to be automatically mounted on the machine, a shot pin insertion / extraction means for inserting / removing a shot pin for fixing a turret when the mold is changed by the automatic mold changer, and the mold at the time of laser processing by the laser processing machine And a control means for allowing the shot pin insertion / removal operation by the shot pin insertion / removal means when the laser beam output is stopped by the laser processing machine, while performing die replacement by the automatic mold changer. .

  According to a second aspect of the present invention, when the laser processing is executed by the current processing program based on a plurality of processing programs executed continuously, the control means performs punch processing by the next processing program. The automatic die changer is controlled so that a die to be used is mounted on the turret.

  In the invention according to claim 3, when the laser beam is output by the laser processing machine, the control unit waits until the laser beam output stops, and then stops the laser beam output to insert and remove the shot pin, Thereafter, the stop of the laser beam output is released.

In the invention according to claim 4, when the laser beam is output by the laser processing machine, the control means waits until the laser beam output stops, and then interlocks all the axes of the apparatus to insert and remove the shot pin. And after that, the interlock is released.

  In the combined punch / laser processing apparatus according to the present invention, when the laser processing is performed, the die used for the punch processing is replaced, so that the entire processing time can be shortened. The shot pin insertion / removal operation for fixing the turret is performed when the output of the laser beam is stopped, so that it is not affected by the vibration caused by the insertion / removal of the shot pin. The occurrence of problems such as unevenness in the cross section can be avoided.

It is a side view which shows the structure of the punch laser composite processing apparatus which concerns on one Embodiment of this invention. It is a top view which shows the structure of the punch laser combined processing apparatus which concerns on one Embodiment of this invention. It is explanatory drawing which shows the structure of the shot pin mechanism part used with the punch laser complex processing apparatus which concerns on one Embodiment of this invention. 1 is a block diagram showing an electrical configuration of a combined punch / laser processing apparatus according to an embodiment of the present invention. It is a flowchart which shows the operation | movement of a metal mold | die exchange process of the punch laser composite processing apparatus which concerns on one Embodiment of this invention. It is a flowchart which shows operation | movement of the metal mold | die exchange process during a process of the punch laser composite processing apparatus which concerns on one Embodiment of this invention. It is a flowchart which shows the other example of operation | movement of the metal mold | die exchange process during a process of the punch laser composite processing apparatus which concerns on one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are explanatory views showing a configuration of a combined punch / laser processing apparatus according to an embodiment of the present invention, wherein FIG. 1 is a side view and FIG. 2 is a plan view. In the following description, for the sake of clarity, the left side in FIG. 1 is referred to as the rear, the right side is referred to as the front, the lower side in FIG. 2 is referred to as the front, and the upper side is referred to as the rear.

  As shown in FIGS. 1 and 2, a punch / laser combined processing apparatus (hereinafter abbreviated as “combined processing apparatus”) 100 according to this embodiment is configured to move a workpiece W placed on a side table 29 to an X axis, And a body frame 3 in which the lower frame 5 and the upper frame 7 are integrated by the front and rear columns 9, which are appropriately moved in the Y-axis direction (see FIG. 2) to punch and laser-process the workpiece W. (Refer to FIG. 1).

  An upper turret 15 is provided on the upper frame 7 between the lower frame 5 and the upper frame 7 at the rear in FIG. 1, and a lower turret 19 is provided at a position facing the upper turret 15 of the lower frame 5. . A plurality of punches 13 are mounted on the upper turret 15, and a plurality of dies 17 are mounted on the lower turret 19 (hereinafter, the punch and the die may be collectively referred to as a mold). An interval through which the workpiece W can pass is provided between the lower turret 19 and the lower turret 19.

  In addition, a striker 21 that can be moved up and down by a driving means 23 such as a crank mechanism or a hydraulic cylinder is provided at an appropriate position of the upper frame 7 above the upper turret 15. Then, by punching the punch 13 with the striker 21 while the workpiece W is set at a desired position, the workpiece W can be punched by the cooperation of the punch 13 and the die 17.

  Further, on the sides of the upper turret 15 and the lower turret 19, a buffer turret 71 for storing the punch 13 attached to each turret 15, 19 and the die 17 is provided. Between the buffer turret 71, an automatic mold changer 72 is provided.

  The automatic die changer 72 is a device for automatically exchanging the die (punch, die) attached to the buffer turret 71 and the die attached to each turret 15, 19. , 19 can be taken out and replaced with another mold prepared in the buffer turret 71.

  Further, on the sides of the upper turret 15 and the lower turret 19, shot pin mechanisms for inserting and removing shot pins 78 and 79 (see FIG. 3 to be described later) for fixing the upper turret 15 and the lower turret 19 are provided. 81 is provided to fix the turrets 15 and 19 at a desired angle. Details of the shot pin mechanism 81 will be described later.

  As shown in FIG. 2, a center table 25 that supports the lower surface of the work W is provided on the lower frame 5 on the front side of each turret 15, 19. 29 is provided. The side table 29 is provided with a plurality of work clamps 39 for fixing the work W, and the work clamps 39 are connected to an X-axis carriage 41. The X-axis carriage 41 is connected to a nut 47 that is screwed into the X-axis feed screw 45. Therefore, by rotating the X-axis drive motor 43, the X-axis feed screw 45 can be rotated to move the nut 47 in the X-axis direction. As a result, the workpiece W can be moved in the X-axis direction. it can.

  Further, a Y-axis carriage 37 for moving the entire side table 29 in the Y-axis direction is provided in front of the side table 29, and further, a Y-axis feed screw 51 is directed toward the front and rear direction of the center table 25. Is provided. An output shaft of a Y-axis drive motor 53 is connected to the tip of the Y-axis feed screw 51, and a nut member 52 is screwed to the Y-axis feed screw 51. The nut member 52 is fixed to the Y-axis carriage 37.

  Accordingly, by rotating the Y-axis drive motor 53, the Y-axis feed screw 51 rotates, so that the Y-axis carriage 37 connected to the nut member 52 moves in the Y-axis direction. That is, by rotating the Y-axis drive motor 53, the workpiece W placed on the side table 29 can be moved in the Y-axis direction.

  Further, a laser head feed screw 59 is provided above the center table 25 in the front-rear direction of the center table 25, and the tip of the laser head feed screw 59 is connected to the output shaft of the laser head drive motor 65. It is connected. A laser head 69 is screwed to the laser head feed screw 59. Therefore, by rotating the laser head drive motor 65, the laser head feed screw 59 can be rotated, and as a result, the laser head 69 can be moved in the Y-axis direction.

  Further, a laser oscillator 67 is provided in front of the main body frame 3, and the laser beam LB irradiated from the vent mirror BM provided in the laser oscillator 67 is sent to the laser head 69. Therefore, by controlling the laser head driving motor 65, the laser head 69 can be moved in the Y-axis direction, and the X-axis driving motor 43 can be operated to move the workpiece W in the X-axis direction. The workpiece W can be laser processed in a two-dimensional direction.

  Next, a shot pin driving mechanism that inserts and removes shot pins into the upper turret 15 and the lower turret 19 will be described.

  FIG. 3 is an explanatory diagram showing the configuration of the shot pin drive mechanism. As shown in the figure, the shot pin drive mechanism includes an air introduction port 75 and an air discharge port 76, and controls the supply and discharge of air to fix the shot pin 78 and the mold for fixing during processing. The replacement shot pin 79 is inserted and removed. That is, when punching is performed using the punch 13 and the die 17 mounted on the upper turret 15 and the lower turret 19, the shot pin 78 is inserted into the insertion hole 80 at a position where each turret 15, 19 has a desired angle. By inserting, the turrets 15 and 19 are fixed.

  Further, when exchanging the dies mounted on the turrets 15 and 19, the molds are removed in a state in which the shot pins 78 for fixing at the time of machining are removed and the turrets 15 and 19 are moved to the die exchanging positions. A replacement shot pin 79 is inserted into the insertion hole 82. Thus, by using the respective shot pins 78 and 79, the turrets 15 and 19 can be firmly fixed at the time of punching and die replacement.

  FIG. 4 is a block diagram showing an electrical configuration of the combined punch / laser processing apparatus 100 according to the present embodiment. As shown in the figure, a combined machining apparatus 100 according to this embodiment includes a shot pin mechanism unit (shot pin insertion / extraction means) 81 that controls insertion / extraction of shot pins 78 and 79, a laser oscillator 67, and an automatic die changer 72. And a program creation device 92 for creating a machining program by the combined machining device 100.

  Next, the procedure of the die exchange process of the punch / laser combined machining apparatus 100 according to this embodiment configured as described above will be described with reference to the flowcharts shown in FIGS. First, in step S <b> 11 of FIG. 5, the control device 91 shown in FIG. 4 acquires the machining program and mold information transferred from the program creation device 92.

  In step S12, the control device 91 starts processing. In step S <b> 13, the control device 91 determines whether there is a mold that needs to be replaced among the molds attached to the upper turret 15 and the lower turret 19. If there is no need to replace the mold (NO in step S13), a standby state is entered.

  On the other hand, if it is necessary to replace the mold (YES in step S13), it is determined whether or not the mold is a mold used in the current program. If the mold is to be used in the current program (YES in step S14), in step S17, the control device 91 starts a mold replacement process. In other words, the control device 91 outputs an exchange command signal to the automatic mold exchanging device 72 and controls the necessary molds to be mounted on the upper turret 15 and the lower turret 19. This processing is executed when both punching and laser processing are stopped.

  If it is not the mold used in the current program (NO in step S14), it is determined whether or not the present is the laser processing mode. If it is not in the laser processing mode (NO in step S15), it waits until it enters the laser processing mode. That is, the fact that it is not in the laser processing mode is the punching mode, so that the die cannot be exchanged, and a standby state is set.

  On the other hand, when the laser processing mode is set (YES in step S15), in step S16, the control device 91 executes a die change process during processing. Next, in step S18, the mold exchanging process is terminated.

  Next, the in-process mold exchanging process described in step S16 will be described with reference to the flowchart shown in FIG. First, in step S21, the control device 91 performs the insertion / extraction operation of the shot pins 78 and 79 by the processing of the following steps in accordance with the die replacement processing.

  In step S <b> 22, the control device 91 determines whether or not the laser head 69 is outputting a laser beam. If the laser beam is being output, the controller 91 stands by in this state. If the laser beam is not being output, the control device 91 puts the laser beam into an output waiting state in step S23. That is, even when the output timing of the laser beam comes, this laser beam is awaiting output.

  In step S <b> 24, the control device 91 performs an insertion / extraction operation for the shot pins 78 and 79. In this process, the shot pins 78 and 79 shown in FIG. 3 are inserted or removed, and the die replacement is continued.

  In step S25, the control device 91 cancels the laser beam output waiting. That is, the laser beam output is permitted. Thereafter, in step S26, the control device 91 resumes laser processing. Thereafter, this process is terminated.

  Thus, since the insertion / extraction operation of the shot pins 78, 79 is executed when the laser processing is stopped, it is possible to prevent the laser processing from being affected by the vibration generated during the insertion / extraction operation of the shot pins 78, 79.

  Thus, in the combined punch and laser processing apparatus 100 according to the present embodiment, when there is a mold to be used immediately, the apparatus is stopped and the mold is exchanged, and a mold that is not used immediately (for example, For the mold to be used in the next program), the mold is exchanged when the laser processing is executed, and the shot pins 78 and 79 are inserted and removed when the output of the laser beam is stopped. Therefore, it is possible to prevent the occurrence of troubles such as the occurrence of non-uniformity on the laser-processed surface due to vibration generated during the insertion and removal operations of the shot pins 78 and 79.

  Further, since the mold can be exchanged during the laser processing, the total processing time can be shortened.

  Next, a modified example of the in-process mold exchanging process shown in step S16 of FIG. 5 will be described with reference to the flowchart shown in FIG. In the above-described embodiment, when laser beam irradiation is stopped during laser processing, the laser irradiation is stopped and the shot pins 78 and 79 are inserted / extracted. When the irradiation is stopped, all the axes are interlocked (the entire apparatus is stopped), and the insertion / extraction operation of the shot pins 78 and 79 is executed.

  In step S31 shown in FIG. 7, the control device 91 executes the insertion and removal operations of the shot pins 78 and 79 by the processing of the following steps in accordance with the die replacement processing.

  In step S <b> 32, the control device 91 determines whether the laser beam is being output from the laser head 69. If the laser beam is being output, the controller 91 stands by in this state. If the laser beam is not being output, the control device 91 interlocks all the axes of the entire device in step S33. Thereby, all the machining operations are temporarily stopped.

  In step S34, the control device 91 executes the insertion / extraction operation of the shot pins 78, 79, and continues the die replacement. In this processing, the operation of inserting or extracting each shot pin 78, 79 shown in FIG. 3 is executed.

  In step S35, the control device 91 releases the interlocks of all axes. Thereafter, in step S36, the control device 91 resumes laser processing. Thereafter, this process is terminated.

  Thus, in the punch / laser combined machining apparatus 100 according to the modification, when the shot pins 78 and 79 are inserted / removed, the entire apparatus is interlocked, so that the shot pins 78 and 79 are inserted / removed. Therefore, it is possible to avoid the influence of vibration caused by the above, and it is possible to reliably perform laser processing.

  The punch / laser combined machining apparatus of the present invention has been described based on the illustrated embodiment. However, the present invention is not limited to this, and the configuration of each part is of an arbitrary configuration having the same function. Can be replaced.

  The present invention can be used to avoid the influence of vibration that occurs when a shot pin is inserted and removed during die replacement.

3 body frame 5 lower frame 7 upper frame 9 column 13 punch 15 upper turret 17 die 19 lower turret 21 striker 23 drive means 25 center table 29 side table 37 Y-axis carriage 39 work clamp 41 X-axis carriage 43 X-axis drive motor 45 X Axis feed screw 47 Nut 51 Y-axis feed screw 52 Nut member 53 Y-axis drive motor 59 Laser head feed screw 65 Laser head drive motor 67 Laser oscillator 69 Laser head 71 Buffer turret 72 Automatic die changer 74 Shot pin drive mechanism 75 Air Introduction port 76 Air discharge port 78, 79 Shot pin 80, 82 Insertion hole 81 Shot pin mechanism 91 Control device 92 Program creation device 100 Punch / laser composite processing device

Claims (4)

In a punch / laser combined processing apparatus that performs both punching and laser processing,
A mold automatic changer that automatically mounts a mold used for the punching at a desired position in the turret;
Shot pin insertion / extraction means for performing an insertion / extraction operation of a shot pin for fixing the turret when the mold is changed by the automatic die changer
When performing laser processing by the laser processing machine, allow the mold automatic replacement machine to perform die replacement, and permit the shot pin insertion / extraction operation by the shot pin insertion / extraction means when the laser processing machine stops outputting the laser beam. Control means to
A combined punch and laser processing apparatus.   The control means is based on a plurality of processing programs executed continuously, and when the laser processing is executed by the current processing program, a die used for punch processing by the next processing program is mounted on the turret. The punch / laser combined processing apparatus according to claim 1, wherein the automatic die changer is controlled.   When the laser beam is output by the laser processing machine, the control unit waits until the laser beam output stops, then stops the laser beam output, inserts and removes the shot pin, and then cancels the stop of the laser beam output. The punch / laser combined machining apparatus according to claim 1, wherein the punch / laser combined machining apparatus is provided. When the laser beam is output by the laser processing machine, the control means waits until the laser beam output stops, then interlocks all the axes of the device, inserts and removes the shot pin, and then releases the interlock The punch / laser combined machining apparatus according to claim 1, wherein the punch / laser combined machining apparatus is provided.

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