JP2012232313A - Laser beam machining apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser beam machining apparatus capable of improving an operating efficiency by eliminating the time required for movement between the carrying-in and carrying-out units, and of simultaneously confirming and taking in the operating conditions in the carrying-in and carrying-out units.SOLUTION: The laser beam machining apparatus comprises: a laser beam machine; a carrying-in section composed of a carrying-in side stacker for stacking workpieces before processing, the adsorption pad frames with provided adsorption pads and of the same number as the workpieces and the carrying-in side workpiece-placing tables temporarily holding the workpiece and having the number of pieces less by one than the workpieces; and a carrying-out section composed of a carrying-in side stacker for stacking workpieces after processing, the adsorption pad frames that are the same as the above, and the carrying-out side workpiece-placing tables that are the same as the above. The carrying-in and carrying-out sections are vertically disposed, and the carrying-in side and carrying-out side stackers are aligned in one direction to the laser beam machine.

Description

  The present invention includes a laser processing machine having a table for placing a plurality of workpieces and a plurality of laser irradiation units, and a loading / unloading device for loading / unloading the workpieces onto / from the table. The present invention relates to a laser processing apparatus that carries in, processes, and carries out.

  When laser processing multiple workpieces such as printed circuit boards at the same time, conventional laser processing equipment includes a laser processing machine body, a single workpiece supply side stocker, a single workpiece discharge stocker, and a workpiece temporarily. A supply-side moving device and a discharge-side moving device having a workpiece mounting table that holds the workpiece, and when supplying a plurality of workpieces simultaneously, processing them simultaneously, and discharging them simultaneously, the workpiece is placed on the workpiece mounting table. It is known that the apparatus installation area is reduced by temporarily holding the supply stocker and the discharge stocker (Patent Document 1).

JP 2005-297007 A

  However, in the technique of Patent Document 1, the work carry-in device and the carry-out device are arranged on both sides of the main body of the laser processing machine, and the worker moves to the carry-out device to perform the collection work after the work is performed by supplying the work with the carry-in device. Work efficiency has been reduced. On the other hand, since the carry-in device and the carry-out device are separately arranged, it is difficult to simultaneously confirm and grasp the work status of the carry-in device and the carry-out device during workpiece processing.

  The object of the present invention is to solve the above-mentioned problems, improve the work efficiency by eliminating the movement time between the carry-in device and the carry-out device, and can confirm and grasp the work status in the carry-in device and the carry-out device at the same time. To provide an apparatus.

  In order to solve the above problems, the present invention provides an XY that can freely move a plurality of workpieces arranged side by side in the X direction, which is a uniaxial direction on a horizontal plane, in the X direction and the Y direction perpendicular to the X direction on the horizontal plane. A laser processing machine having a table, a bed on which the XY table is placed, and the same number of laser units as the plurality of workpieces arranged in the X direction above the plurality of workpieces; A loading-side stocker for loading workpieces, the same number of suction pad frames as the plurality of workpieces provided with suction pads, and a number of loading-side workpieces that are temporarily held by the workpiece and are one less than the plurality of workpieces A loading unit composed of a table, a carry-out side stocker for loading the processed workpiece, and the same number of suction pad frames as the plurality of workpieces provided with suction pads; An unloading unit configured to temporarily hold a workpiece and the number of unloading-side work platforms that is one less than the plurality of workpieces, and the loading unit and the unloading unit are arranged vertically. The carry-in side stocker and the carry-out side stocker are arranged in one direction with respect to the laser processing machine.

  According to the present invention, the carry-in part and the carry-out part are arranged one above the other, and the carry-in side stocker and the carry-out side stocker are arranged side by side with respect to the laser processing machine, so that the operator between the carry-in part and the carry-out part Work time can be improved by eliminating travel time, and the work status at the loading and unloading sections can be confirmed and grasped simultaneously.

1 is an overall configuration diagram of a laser processing apparatus according to the present invention. It is a figure explaining the laser beam machine concerning the present invention. It is a flowchart showing the whole process of the laser processing which concerns on this invention. It is a flowchart showing the workpiece carrying-in process which concerns on this invention. It is a flowchart showing the laser processing process which concerns on this invention. It is a flowchart showing the workpiece carrying-out process which concerns on this invention. It is a figure showing the position of the workpiece | work and suction pad at the time of the workpiece | work delivery concerning this invention. (A) is a front view, (b) is a plan view. It is a figure showing the position of the workpiece | work at the time of the laser processing which concerns on this invention. It is a figure showing the position of the workpiece | work and suction pad at the time of the workpiece | work carrying out based on this invention. (A) is a front view, (b) is a plan view.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram of a laser processing apparatus according to an embodiment of the present invention. In the figure, a laser processing apparatus includes a laser processing machine 101 that laser-processes holes and grooves in a work 105, and a carry-in / out apparatus 102 that supplies an unprocessed work 105 to the laser processing machine 101 and discharges the processed work 105. And. The laser beam machine 101 includes an XY table 106 that can move a plurality of (two in the drawing) workpieces 105 mounted in the X direction (left and right direction with respect to the paper surface) and the Y direction (perpendicular direction with respect to the paper surface). A vacuum suction table (not shown) that is fixed on the XY table 106 and sucks or releases the workpiece, and a plurality (two in the drawing) of laser units 104a and laser units 104b that irradiate the workpiece 105 with laser light. A portal column 103 provided with a laser unit 104a and a laser unit 104b, a bed 107 provided with an XY table 106, and a control device 119 for controlling the laser processing machine 101 and a carry-in / out device 102 described later. Become.

  On the other hand, the carry-in / out device 102 includes a carry-in unit and a carry-out unit. The carry-in unit lifts the suction pad frame 111a and the suction pad frame 111b provided with a plurality of suction pads 112 for sucking or releasing the workpiece 105, the lifter 110a for raising and lowering the suction pad frame 111a, and the suction pad frame 111b. Lifter 110b for lowering, slider 109 with lifter 110a and lifter 110b fixed to the bottom surface, loading-side guide rail 108 for pointing to slider 109, and loading-side mounting table for temporarily holding workpiece 105 113a and a loading-side stocker 115 that is movable in the vertical direction on an upper and lower table 114a on which a plurality of workpieces 105 are loaded. The lifters 110a and 110b can be raised and lowered independently. The carry-out unit raises the suction pad frame 111c and the suction pad frame 111d provided with a plurality of suction pads 112 for sucking or releasing the workpiece 105, the lifter 110c for raising and lowering the suction pad frame 111c, and the suction pad frame 111d. Lifter 110d for lowering, slider 117 with lifter 110c and lifter 110d fixed to the side surface, loading-side guide rail 116 that points to slider 117, and loading-side mounting table that temporarily holds workpiece 105 113b, and an unloading side stocker 118 that can move up and down on an upper and lower table 114b on which a plurality of workpieces 105 are loaded. Since the guide rail 108 can transport a heavy object of a maximum of 20 kg, the slider 109 having two sets of suction pad frames and lifters (for example, a total weight of about 6 kg) can be held in a cantilever manner and is movable in the X direction. Accordingly, the guide rail 108 can be made shorter than the case where the slider 117 is held by both ends of the guide rail 116, so that the workpiece 105 that has been processed is moved up the side of the loading portion, and then the unloading side workpiece mounting table 113b and It can be moved to the carry-out side stocker 118.

  The carry-in / out device 102 has a carry-in section and a carry-out section arranged one above the other, and a carry-in stocker 115 and a carry-out stocker 118 are arranged in one direction with respect to the laser processing machine 101. Therefore, it is possible to improve the work efficiency by eliminating the movement time of the worker between the carry-in part and the carry-out part, and to confirm and grasp the work status in the carry-in part and the carry-out part at the same time.

  In addition, when the carrying-in stocker 115 and the carrying-out stocker 118 are common and the stocker is single, the workpiece 105 is not processed unless it is placed on the single stocker by the number of workpieces 105 processed at a time by the laser processing machine 101. Since the processed workpiece 105 is loaded on the workpiece 105, the processed workpiece 105 must be separated from the unprocessed workpiece 105 and taken out from a single stocker. On the other hand, in general, in order to process one or more workpieces 105 that are processed at a time by the laser processing machine 101, it is necessary to place and extract the workpieces 105 on a single stocker a plurality of times. Therefore, the work efficiency of the worker has been reduced. In the present invention, since the carry-in side stocker 115 and the carry-out side stocker 118 are provided separately, it is possible to place one lot of the work 105 on the carry-in side stocker 115 and take out from the carry-out side stocker 118 once. it can. Further, since the loading-side stocker 115 and the unloading-side stocker 118 are provided separately, the processed workpiece 105 is taken out from the unloading-side stocker 118 during the loading process of the unprocessed workpiece 105 to the XY table 106, and the processed workpiece 105 is processed. The workpiece 105 can be placed on the loading-side stocker 118 during the unloading process from the XY table 106. However, work efficiency can be improved.

  FIG. 2 is a diagram for explaining a laser processing machine according to an embodiment of the present invention. The laser unit 104a includes a mirror 204a, a pair of galvano scanners 205a and an fθ lens 206a, and the laser unit 104b includes a mirror 204b and a pair of galvano scanners 205b and an fθ lens 206b. The laser light output from the laser oscillator 201 is alternately changed in optical path by the acousto-optic device 202 and is incident on the galvano scanner 205a via the mirrors 203a and 204a, and is incident on the galvano scanner 205b via the mirrors 203b and 204b. . Then, the workpiece 105 is positioned in the XY direction by the galvano scanners 205a and 205b, passes through the fθ lens 206a or the fθ lens 206b, and processes the workpiece 105 respectively.

  3 to 6 are flowcharts showing operations according to the present invention, which are programmed in the control device 119.

  In FIG. 3, first, the workpiece 105 to be transferred to the carrying-in process is placed on the XY table 106 (step S <b> 301). Next, the process shifts to the machining step and the workpiece 105 is laser machined (step S302), and then the machined workpiece 105 is carried out to the collection side substrate stocker 123 (step S303). Thereafter, if there is a workpiece 105 to be processed next, the carry-in operation is repeated again, and the series of operations according to the present invention is terminated when there is no workpiece 105 to be processed (step S304).

  Next, details of the carrying-in process will be described with reference to FIGS. 4 and 7. FIG. 4 is a flowchart showing the loading process, FIG. 7A is a front view when the work 105 is loaded and placed on the XY table 106, and FIG. 7B is a plan view. In step S401, the upper and lower tables 114a are raised (step S401). Thereafter, the suction pad frame 111b is lowered to suck the workpiece 105 (step S402), and is lifted to move above the loading-side workpiece mounting table 113a (step S403), and is lowered to be on the loading-side workpiece mounting table 113a. The workpiece 105 is placed (step S404), and the workpiece 105 is raised and moved above the loading-side stocker 115 (step S405). The suction pad frame 111a and the suction pad frame 111b are lowered, the workpiece 105 placed on the loading-side workpiece mounting table 113a is placed on the suction pad frame 111a, and the workpiece 105 loaded on the loading-side stocker 115 is placed on the suction pad frame 111b. , Each is adsorbed (step S406). The suction pad frame 111a and the suction pad frame 111b are lifted and then moved to the upper position of the XY table 106 (step S407). After being lowered and placed on the XY table 106, the workpiece 105 is lifted again and then started to be carried in. The position is moved (step S408), and the carry-in operation is terminated.

  FIG. 5 is a flowchart showing the machining process, and FIG. 8 is a plan view when the workpiece 105 is moved to the machining position. The XY table is driven to move the workpiece 105 to the machining position (step S501). Next, laser machining of the workpiece 105 is started (step S502), and after machining is finished (step S503), the XY table 106 is driven to move the workpiece 105 to the carry-out position (step S508), and the machining operation is finished.

  The carry-out operation will be described with reference to FIGS. FIG. 6 is a flowchart showing the unloading process, FIG. 9A is a front view when the work 105 is attracted to the suction pads 111c and 111d, and FIG. 9B is a plan view. The suction pad frame 111c and the suction pad frame 111d are moved above the workpiece 105 (step S601), lowered to suck the workpiece 105 and then lifted (step S602), and the suction pad frame 111c is moved to the unloading side workpiece mounting table 113b. The suction pad frame 111d is moved upward above the carry-out side stocker 118, and then lowered to place the work on the carry-out side work placing table 113b and the carry-out side stocker 118 (step S603). Thereafter, the suction pad frame 111c and the suction pad frame 111d are raised, the suction pad frame 111d is moved above the carry-out side work mounting table 113b, and then lowered to suck the work 105 (step S604). Then, the workpiece 105 is lowered and then moved down to place the workpiece 105 on the carry-out side stocker 118 (step S605), and after being raised, moved to the unloading start position (step S609) and carried out. Exit.

  In the above embodiment, the carry-in part is arranged on the side close to the laser processing machine 101 in the X direction, and the carry-out part is arranged on the far side, but the side close to the laser processing machine 101 is the carry-out part and the far side is the carry-out part. You may switch the control object of the said carrying-in process and a carrying-out process.

  In addition, it has been described that two workpieces 105 are processed at the same time. However, the number of suction pad frames and laser units is the same as the number of workpieces 105, and the number of workpiece mounting bases is one less than that of workpieces 105. 105 can be processed.

  It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible, and all technical matters included in the technical idea described in the scope of claims are the subject of the present invention.

DESCRIPTION OF SYMBOLS 101 Laser processing machine 102 Carry-in / out apparatus 103 Portal column 104a, 104b Laser unit 105 Work 106 XY table 107 Bed 108,116 Guide rail 109,117 Slider 110a, 110b, 110c, 110d Lifter 111a, 111b, 111c, 111d Adsorption pad Frame 112 Suction pad 113a Loading-side workpiece mounting table 113b Loading-side workpiece mounting table 114a, 114b Upper and lower tables
115 Loading side stocker 118 Loading side stocker

Claims (1)

An XY table on which a plurality of workpieces arranged side by side in the X direction, which is a uniaxial direction on a horizontal plane, is movable in the X direction and a Y direction perpendicular to the X direction on the horizontal plane, and the XY table are placed A laser beam machine having a bed and the same number of laser units as the plurality of workpieces arranged in the X direction above the plurality of workpieces;
A loading-side stocker for loading workpieces before processing, the same number of suction pad frames as the plurality of workpieces provided with suction pads, and a number of workpieces that are temporarily held and one less than the plurality of workpieces. A loading part composed of a side workpiece mounting table;
An unloading side stocker for loading workpieces after processing, the same number of suction pad frames as the plurality of workpieces provided with suction pads, and a number of workpieces that are temporarily held by the workpiece and one less than the plurality of workpieces A side work placing table, and a carry-out unit composed of:
The carry-in part and the carry-out part are arranged up and down,
The laser processing apparatus, wherein the carry-in side stocker and the carry-out side stocker are arranged in one direction with respect to the laser processing machine.

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