JP2955045B2 - Pallet loading / unloading device for processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet loading / unloading device for a processing machine, which enables a pallet supporting a work on a table of a processing machine such as a laser processing machine to be taken in and out of a pallet stocker.

[0002]

2. Description of the Related Art Conventionally, an automatic warehouse has been known as a stocker for storing pallets supporting materials or products. The automatic warehouse and a processing machine such as a laser processing machine are arranged with a certain distance therebetween. Therefore, when the material is taken out from the automatic warehouse and processed by the processing machine, the material is temporarily transported from the automatic warehouse to the processing machine via the loading device. At present, products processed by a processing machine are transported to an automatic warehouse via an unloading device.

[0003]

As described above, in the prior art, between the stocker and the processing machine,
Loading and unloading equipment is required when loading materials or products, and it is necessary to intervene, so this time is equivalent to the time to transport materials from the stocker to the processing machine and the time to transport products from the processing machine to the stocker. It takes a long time, and there is a problem in saving space.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the invention according to claim 1 is directed to an elevator in front of a pallet stocker having a plurality of shelves capable of storing pallets supporting materials or products. Pallet loading / unloading device for a processing machine comprising a pallet loading / unloading device capable of vertically moving a pallet in and out of the shelf with respect to the shelf. A support arm is provided, left and right guide members that support the pallet and guide in the front-rear direction are provided on the left and right support arms, and the left and right guide members are
The left and right support arms are provided so as to be movable in a direction in which the left and right support arms protrude and retract from the opposed inner surfaces.

According to a second aspect of the present invention, in the pallet loading / unloading device according to the first aspect, a plurality of pallet stockers are arranged adjacent to each other in the left-right direction, and the pallet stockers can move up and down in front of the left and right pallet stockers. The left and right elevators provided in the above are integrally connected so that they can be moved up and down by a common elevating device.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3. 1, 2 and 3, a laser processing machine 1 as a processing machine is disposed on a floor surface, and a material is provided on the left rear side (the upper left side in FIG. 1) of the laser processing apparatus 1. A pallet stocker 5 having a plurality of stages of shelves 3 capable of storing pallets P for supporting W and products G is arranged.

First, the configuration of the laser beam machine 1 will be specifically described. The laser beam machine 1 has a box-shaped base 7 extending on the floor in the X-axis direction (left-right direction).
Is provided. Guide rails 9 extending in the X-axis direction are laid on both sides of the base 7 in the Y-axis direction. The guide rail 9 includes a plurality of guide members 11.
The table 13 is provided movably in the X-axis direction by a drive motor (not shown).

On this table 13, a rectangular pallet P supporting a material W is placed, and this pallet P is clamped and unclamped by a plurality of clamp members 15 provided on the right side of the table 13 in FIG. It is supposed to be. Since the work clamp member 15 has a known structure, a detailed description thereof will be omitted. As shown in FIG. 1, for example, four guide rollers 17 are rotatably supported on both sides of the pallet P in the X-axis direction.

By driving the drive motor (not shown) according to the above configuration, the pallet P supporting the material W is
13 which is clamped by a clamp member 15
Is smoothly moved in the X-axis direction while being guided by the guide rail 9 via the guide member 11.

As shown in FIG. 3, a chip conveyor 19 is provided in the base 7, and a movable scrap box 21 is arranged below the chip conveyor 19 on the left side in FIG. I have.

A column 23 is erected near the center of the base 7 in the X-axis direction, and a cantilevered support frame 25 is provided on the column 23 in a Y-axis direction (front-back direction).
It is provided to be stretched. Support blocks 27R and 27L extending in the Y-axis direction are provided on both sides in the X-axis direction in the lower portion of the support frame 25. A guide rail 29 is provided on each of the support blocks 27R and 27L.
R, 29L are provided, and this guide member 29R,
29L is provided with a Y moving body 31 movable in the Y axis direction.

With the above configuration, the Y-axis moving body 31 is smoothly moved in the Y-axis direction via the plurality of guide rails 29R and 29L by a drive motor (not shown) through, for example, a transmission device of a ball screw and a nut member. Will be.

A drive unit (not shown) moves the Z-axis moving body 33 in the Z-axis direction (up and down direction) via a ball screw and a nut member, for example. An A-axis rotating body 3 is provided below the Z-axis moving body 33.
5 is provided so as to be rotated in the A-axis direction (around the axis of the Z-axis moving body 33), and is provided below the A-axis rotating body 35 in the B-axis direction (perpendicular to the A-axis rotating body 35). It is provided so as to be rotated about the axis. In addition, a laser nozzle 39 is mounted below the B-axis rotator 37.

Therefore, the laser nozzle 39 has an X-axis, a Y-axis.
As the material W is moved and rotated with respect to five axes in the directions of the axis, the Z-axis, the A-axis, and the B-axis, the three-dimensional laser processing is performed on the material W having a three-dimensional shape (three-dimensional shape). Has become.

A laser oscillator 41 is arranged on the side (right side in FIG. 1) of the column 23. A laser beam oscillated by the laser oscillator 41 is emitted from a laser nozzle 39 via a plurality of bend mirrors. The material W is subjected to laser processing.

An NC device 43 for variously controlling the laser processing apparatus 1 is disposed on the front side (lower side in FIG. 1) of substantially the center of the base 7. Further, one end of a suction duct 45 is inserted into the base 7 where laser processing is performed, and the other end of the suction duct 45 is connected to a suction box 47. In addition, the base 7
A case 49 for storing remaining materials and small products is provided in the lower part of the box.

Left and right side frames 51R, 51 framed with the pallet stocker 5 are provided on the rear side of the base 7 on the left side (the upper side in FIG. 1 and the right side in FIG. 2).
L are erected, and the side frames 51R and 51R
An upper frame 51U is connected to an upper portion between the upper frame L and the upper frame 51L. A plurality of shelves 3 are provided at appropriate intervals in the Z-axis direction inside the side frames 51R and 51L. Each of the shelves 3 supports a material W or a product G and has a plurality of shelves on the outside. A pallet P rotatably supporting the guide roller 17 is supported and housed so as to be able to move in and out in the front-rear direction.

A support beam 53 is connected to a substantially central portion of the upper frame 51U.
As shown in FIG. 1, support brackets 55 are provided before and after. This rear support bracket 55
A gear box 57 is attached to the gear box 57, and a drive motor 59 is linked to the gear box 57.
The gear box 57 has a rotatable wire drum 61.
Is supported.

As shown in FIG. 3, a pulley 65 is rotatably supported at a front corner of each of the side frames 51R and 51L via a bracket 63.
One ends of wires 67 and 69 are attached to the wire drum 61, and the other ends of the wires 67 and 69 are provided with a pallet loading / unloading device that allows the pallet P to be moved in and out of the shelf 3 in the front-rear direction. An elevator 71 is mounted.

With the above configuration, when the drive motor 59 as an elevator elevating device is driven, the wire drum 61 is rotated via the gear box 57. When the wire drum 61 is rotated, the wires 67 and 69 are wound around the wire drum 61, and thereby the elevator 71 is rotated.
Is raised. When the drive motor 59 is rotated in the reverse direction, the wires 67 and 69 are returned from the wire drum 61, and the elevator 71 is lowered.

Referring to FIG. 4 in addition to FIGS. 1 to 3, the elevator 71 includes a support frame 73 extending in the X-axis direction (left-right direction). Support blocks 75R, 75 on rear
L are integrated, and the support blocks 75R, 75
Rollers 77R and 77L with grooves are rotatably supported on L.

Further, support blocks 79R, 7 extending in the Z-axis direction are provided at the lower portions on both sides of the support frame 73.
9L are integrated, and the support blocks 79R, 7R
The grooved rollers 81R and 81L, which are the same as the grooved rollers 77R and 77L, are rotatably supported on 9L. The grooved rollers 77R and 81R;
When the elevator 71 is moved up and down, the elevator 71 is guided by the front supports of the side frames 51R and 51L to move the elevator 71 in the Z-axis direction (vertical direction).
Will be moved smoothly.

The support blocks 79R, 79L have left and right support arms 83R, extending in the Y-axis direction (front-rear direction).
One end of 83L is integrated. This support arm 83
As shown in FIG. 4, sprockets 85R, 85L; 87R, 87L are rotatably supported in front and rear of the R, 83L in the Y-axis direction so as to constitute a pallet access device. And 87R; 8
Chains 89R and 89L are wound around 5L and 87L, respectively. At the tip of these chains 89R and 89L,
Pin 91R as an engaging member engageable disengaged trough P _G formed at the tip portion of the pallet P, 91L is mounted.

Sprockets 93R, 93L are rotatably supported on the support blocks 79R, 79L.
The sprockets 93R and 93L have shafts 95R and 95L.
The other sprockets 97R and 97L are rotatably supported via the sprockets 97R and 97L.
L is meshed with the chains 89R and 89L.

A rotatable shaft 99 extending in the X-axis direction is operatively connected to a drive motor (not shown) via a transmission member in the support frame 73. Sprockets 101R and 101L are provided on both sides of the shaft 99. Is supported. The sprockets 101R and 101L and the sprockets 93R and 93L have chains 103R and 1R, respectively.
03L is wound.

With the above configuration, when a drive motor (not shown) as a pallet loading / unloading device is driven, the shaft 99 is rotated via the transmission member. By rotating this shaft 99, the sprockets 101R, 101R
L, chain 103R, 103L, sprocket 93R,
Chain 89R, 89L via 93L, 97R, 97L
Is driven in the Y-axis direction (front-back direction). Chain 89R,
When 89L rotates in the Y-axis direction, for example, in the rightward direction in FIG.
1R, 91L is also moved in the same direction, the pin 91R, 91L together enters the trough P _G of the pallet P, further pallet P by for moving traveling as indicated by the arrows in FIG. 4 in the Y-axis direction of the left Will be moved. When the chains 89R and 89L are rotated and driven in the opposite directions, the pallet P is moved rightward in the direction opposite to the arrow direction.

A plurality of pins 105 project downward from appropriate positions of the support arms 83R and 83L. The pins 105 are attached to holes 109 formed at one end of a link 107, respectively. At the other end of the link 107, a pin 111 protruding upward is mounted in a hole 115 formed in a roller guide member 113 extending in the Y-axis direction as a pallet supporting portion for supporting the roller 17 provided on the pallet P. I have.

The roller guide member 113 is provided so as to be switchable so that it can be moved in and out of the support arm 83L in the left-right direction by the operation of the link 107. For example, as shown in FIG. 5, the bracket 117 is extended to the left of the front link 107 of the links 107 to integrate the bracket 117, and the bracket 117 has an elongated hole 1
19 are formed.

On the other hand, a fluid cylinder 123 is attached to the side surface of the support arm 83L via, for example, a bracket 121, and a distal end of a piston rod 125 mounted on the fluid cylinder 123 is vertically moved via a connecting member 127. A rod 129 extending in the direction is attached. Moreover, the tip of the rod 129 is inserted into an elongated hole 119 formed in the bracket 117.

When the fluid cylinder 123 is operated and the piston rod 125 is contracted as shown by the arrow in FIG.
7 rotates about the pin 105 as a fulcrum, and the roller guide member 113 moves rightward from the state shown in FIG. 5, that is, moves in a direction protruding from the opposed inner surfaces of the left and right support arms 83L and 83R, The roller 17 of the pallet P is supported on the roller guide member 113. The roller guide member 11 in the state shown in FIG.
Reference numeral 3 denotes an unsupported state in which the right and left support arms 83L and 83R are moved in a direction of immersion into the opposed inner side surfaces, and do not support the roller 17 of the pallet P and release the support. Is what it is.

The switching of the roller guide member 113 between the support state in which the roller 17 of the pallet P is supported and the unsupported state in which the roller guide member 113 is released by moving the parallel link 107 into and out of the support arm 83L has been described. Support arm 8
The switching mechanism by taking the roller guide member 113 in and out of the 3R is the same, and a detailed description is omitted. The mechanism for taking the roller guide member 113 in and out is not limited to the above-described mechanism, and another mechanism may be used.

With the above configuration, the material W stored in the multi-stage shelf 3 of the pallet stocker 5 is carried out to the laser processing machine 1 as a processing machine, and the material W is processed by the laser processing machine 1.
A series of operations for storing a product G obtained by performing, for example, three-dimensional processing on the shelf 3 of the pallet stocker 5 will be described.

First, the drive motor 59 is driven to rotate the wire drum 61 to raise the elevator 71 via the wires 67 and 69, and the shelves 3 in which the material W to be processed is stored by the NC device 43. When the elevator 71 is selected in advance, the elevator 71 is stopped and positioned at the position of the selected shelf 3. During this time, when the fluid cylinder 123 is operated, the parallel link 107 is rotated, and the roller guide member 113 is projected to the inside of the support arms 83R and 83L so as to support the roller 17 of the pallet P.

Next, when the shaft 99 is rotated by a drive motor (not shown) as a pallet loading / unloading device, the chains 89R and 89L are moved, for example, clockwise as shown in FIG. recess P _G to pin 91R level of included pallet P, 91L is engaged engagement enter from below. In this state, the chain 89R, when allowed to move in the same direction 89L, is supported on an elevator 71 pallet P of the roller 17 is resting on the roller guide member 113, the pin 91R in the mobile terminal, 91L from the recess P _G Exit downward. In this state, when the elevator 71 is lowered to the lower end position and stopped, and the parallel link 107 is rotated in the opposite direction, the state shown in FIG.
, The pallet P supporting the material W is moved onto the table 13 and the table 13
The pallet P is moved to a predetermined position in the axial direction, and the pallet P is clamped on the table 13 by the clamp member 15.

Next, the table 13 on which the pallet P is clamped by the clamp member 15 is appropriately moved in the X-axis direction, and the laser nozzle 39 is moved and rotated in the Y-axis, Z-axis, A-axis and B-axis directions. By causing the laser beam oscillated by the laser oscillator 41 to
By irradiating the material W from 9, the material W is subjected to three-dimensional laser processing.

When the laser processing of the material W is completed, the table 13 is moved to the original position in the X-axis direction and stopped and positioned below the elevator 71. Elevator 7
1 to the lower end position, and the parallel link 1
When 07 is rotated, the roller guide member 113 is moved inside the support arms 83R and 83L, and the roller 17 of the pallet P supporting the product G processed on the roller guide member 113 is supported.

Next, thien 89R, pins and above the 89L and allowed travel and move in the opposite direction 91R, engage from down again trough P _G of the pallet P 91L. In this state, the elevator 71 is raised to stop at the position of the empty shelf 3 to be positioned, and the chains 91R and 91L are moved in the same direction to move the rollers 1 of the pallet P.
7 moves on the roller guide member 113 becomes a receiving state Noriutsuri on the shelf 3, moving the moving end, the pin 91R, the product G is removed downward 91L from trough P _G of the pallet P The supported pallet P is stored in the shelf 3.

By repeating the above operation, the material W stored in the shelf 3 is successively laser-processed by the laser processing machine 1 to obtain a product G, which is stored in the shelf 3.

As described above, the material W stored in the shelf 3 of the pallet stocker 5 is unloaded and laser-processed by the laser processing machine 1, and the laser-processed product G is stored in the shelf 3 of the pallet stocker 5. If you do, elevator 7
1 is moved up and down, and the elevator 71 is provided with a roller guide member 113 serving as a pallet support portion so as to be switchable between a support state in which the pallet P is supported and an unsupported state in which the pallet P is released. The material W or the product G can be directly carried in and out between the pallet stocker 5 and the laser processing machine 1 without the need for a loading and unloading device. Therefore, the loading and unloading time can be shortened as compared with the conventional case, and can be automatically performed.

Next, a second embodiment of the present invention will be described with reference to FIGS. 6, 7, 8 and 9. 6, 7, and 8
9 and FIG. 9, the configuration and operation of the laser beam machine 1 are almost the same as those of the first embodiment described above.
The same parts are denoted by the same reference numerals, and description thereof will be omitted. Only different points will be described.

That is, the column 23 is erected on the front side (lower side in FIG. 6) near the center of the base 7,
The NC device 43 is arranged on the right side of the column 23, and the laser oscillator 41 is arranged on the left side of the column 23. The other configuration is the same as that of the first embodiment, and the description is omitted.

The pallet stocker 5 is disposed behind the base 7 in the first embodiment. However, in the second embodiment, the pallet stocker 5 is disposed adjacent to the left and right rear sides of the base 7. 5R and 5L are arranged. That is, the pallet stockers 5R and 5L are provided with left and right side frames 51R and 51L, respectively.
The side frames 51R, 51
An upper frame 51U is connected to an upper portion between the upper frame L and the upper frame 51L. The support frame 13 is provided above and below the left side frame 51R and the right side frame 51L.
1,133. Further, a plurality of shelves 3 are provided at appropriate intervals in the Z-axis direction inside each of the site frames 51R and 51L. Each of the shelves 3 supports a material W or a product G, and has a plurality of shelves on the outside. The pallet P which rotatably supports the guide roller 17 is supported and stored.

A support beam 53 extending in the front-rear direction is connected to a substantially central portion of the support frame 131.
A support bracket 55 is provided before and after the support beam 53 as shown in FIG. A gear box 57 is attached to the rear support bracket 55, and a drive motor 59 is linked to the gear box 57. A rotatable wire drum 61 is supported on the gear box 57.

At the front corner of the side frame 51R of the right pallet stocker 5R and the side frame 51L of the left pallet stocker 5L, a pulley 65 is rotatable via a bracket 63 as shown in FIG. It is supported. One ends of wires 67 and 69 are attached to the wire drum 61, and the other ends of the wires 67 and 69 are attached to an elevator 71. One end of the wire 68 is attached to the wire drum 61, and the other end of the wire 68 is connected to the elevator 7.
1 is attached to a substantially central portion.

With the above configuration, when the drive motor 59 is driven, the wire drum 61
Is rotated. When this wire drum 61 is rotated,
The elevator 71 is raised by winding the wires 67, 68, 69 around the wire drum 61. When the drive motor 59 is rotated in the reverse direction, the wires 67, 68, and 69 are returned from the wire drum 61, and the elevator 71 is lowered.

Referring to FIG. 10 in addition to FIGS. 6 to 8, the elevator 71 is provided with a support frame 73 extending in the X-axis direction. Support block 75R,
75L are integrated, and this support block 75R,
Rollers 77R and 77L with grooves are rotatably supported on 75L.

Further, support blocks 79R and 79L extending in the Z-axis direction are integrated with the support frame 73 and lower portions on both sides of the central portion. The support blocks 79R and 79L at the central portion are provided with the grooves. Roller 7
The same grooved rollers 81R and 81L as those 7R and 77L are rotatably supported. The grooved rollers 77R and 81R;
77L and 81L are attached to face each other at 90 degrees, and when the elevator 71 is moved up and down, the elevator 71 is guided by the front supports of the side frames 51R and 51L so that the elevator 71 moves smoothly.

On both sides of the support frame 73, brackets 13 are provided below support blocks 135R and 135L.
7R and 137L are attached, and this bracket 1
37R and 137L rotatably support a pair of guide rollers 139R and 139L that are guided to the front corners of the side frame 51R of the right pallet stocker 5R and the side frame 51L of the left pallet stocker 5L.
Therefore, the pair of guide rollers 139R and 139L serve as a guide when the elevator 71 is moved up and down.

The support blocks 79 on both sides and the central part
R and 79L have support arms 83R extending in the Y-axis direction.
One end of 83L is integrated. Each of these support arms 8
The roller guide member 113 is already provided in 3R and 83L as shown in FIG.
The roller guide member 113 is mounted in a structure as shown in FIG.
Since they are provided so as to be switchable so as to be put in and taken out by the parallel link 107 and have almost the same operation, the same components are denoted by the same reference numerals and description thereof is omitted. Pallet P
The structure and operation of the pallets supported by the roller guide member 113 and carried in and out of the shelves 3 at each stage in the pallet stockers 5R and 5L are substantially the same as those in FIGS. Description is omitted.

With the above configuration, for example, the material W stored in the plurality of shelves 3 of the pallet stockers 5R and 5L is carried out to the laser processing machine 1 as a processing machine, and the material W is processed by the laser processing machine 1 into, for example, three-dimensional processing. A series of operations for accommodating the product G obtained by the above operation on the shelf 3 of the pallet stockers 5R and 5L will be described.

First, the drive motor 59 is driven to rotate the wire drum 61 to raise the elevator 71 via the wires 67, 68, 69. For example, the right pallet stocker in which the material W to be processed is stored is stored. When the 5R shelf 3 is selected in advance by the NC device 43, the elevator 71 is stopped and positioned at the position of the selected shelf 3. During this time, when the fluid cylinder 123 on the pallet stocker 5R side is operated, the parallel link 10
7 rotates and the roller guide member 113 is
The rollers 17 of the pallet P, which protrude inside the R and 83L, are supported.

Next, the shafts 99 are rotated by a drive motor (not shown), whereby the chains 89R and 8R are rotated.
If the allowed to travel and move with as example in the clockwise direction shown in FIG. 4 9 L, similarly to the above pin recess P _G of the pallet P, which is housed in the shelf 3 91R, 91L is engaged engagement enter, then the pallet P The roller 17 is the roller guide member 1
13 and supported on an elevator 71. In this state, when the elevator 71 is lowered to the lower end position and stopped, and the parallel link 107 is rotated in the opposite direction, the state shown in FIG.
, The pallet P supporting the material W moves onto the right side of the table 13 and the table 1
3 is moved to a predetermined position in the X-axis direction, and the clamp member 1 is moved.
In step 5, the pallet P is clamped on the table 13.

Next, the table 13 on which the pallet P is clamped by the clamp member 15 is appropriately moved in the X-axis direction, and the laser nozzle 39 is moved and rotated in the Y-axis, Z-axis, A-axis and B-axis directions. By causing the laser beam oscillated by the laser oscillator 41 to
By irradiating the material W from 9, the material W is subjected to three-dimensional laser processing.

While performing the three-dimensional laser processing on the material W, the elevator 71 is raised to control the NC device 43 from the material W stored in the plurality of shelves 3 in the left pallet stocker 5L. Then, the material W to be processed next is selected, and the elevator 71 is stopped and positioned on the shelf 3 of the pallet P supporting the selected material W. Then, the pallet P supporting the material W is carried out from the shelf 3 to the elevator 71. At this time, the guide roller member 1
13 is supported by the rotation of the parallel link 107, so that the pallet P supporting the material W is supported on the roller guide member 113. Next, the elevator 71 is lowered and stopped at a position slightly higher than the lower end.

The material W processed by the laser processing machine 1
Is completed, the table 13 is moved to the original position in the X-axis direction, and stopped and positioned below the elevator 71 on the right pallet stocker 5R side.
While lowering the elevator 71 to the lower end position,
When the parallel link 107 is rotated, the roller guide member 113 is moved inside the support arms 83R and 83L, and the roller 17 of the pallet P supporting the product G processed on the roller guide member 113 is supported.

Next, similarly to the above chain 89R, pin 91R are caused to travel and move to 89L, to engage the 91L to trough P _G of the pallet P. The pallet P supporting the material W supported on the elevator 71 on the left pallet stocker 5L side is detached from the elevator 71 by placing the guide roller member 113 in an unsupported state and placed on the left side of the table 13. Is placed. In this state, the elevator 17 is raised to stop at the position of the empty shelf 3 and positioned, and the chains 91R and 91L are moved in the same manner as described above, so that the roller 17 of the pallet P moves on the roller guide member 113. and, if the state of being housed Noriutsuri on the shelf 3, the pin 91R, the trough P _G is removed it is in the pallet P which supports the product G of 91L palette P is to be housed in the rack 3. Table 1 during this time
The material W placed on the left side of 3 is subjected to laser processing by the laser processing machine 1. Then, while the material W is being subjected to the laser processing, the material W is put on the elevator 71 from the shelf 3 of the pallet stocker 5R on the right and waits.

By repeating the above operation, the laser beam machine 1 sequentially performs laser processing on the materials W stored in the left and right pallet stockers 5R and 5L on the shelves 3 to obtain a product G. 3 will be stored.

As described above, the left and right pallet stockers 5
The material W stored in the R, 5L shelves 3 is carried out and laser-processed by the laser processing machine 1, and the laser-processed product G is transferred to the left and right pallet stockers 5R, 5L on the shelves 3R, 5L.
In this case, the elevator 71 is moved up and down, and the elevator 71 is provided with a roller guide member 113 serving as a pallet supporting portion, which can be switched between a supporting state for supporting the pallet P and an unsupporting state for releasing the pallet P. Since it is provided, the material W or the product G can be directly carried in and out between the left and right pallet stockers 5R and 5L and the laser processing machine 1 without requiring a conventional loading and unloading device. Therefore, the second embodiment has the same effect as the first embodiment, and
Further, since the laser processing can be performed continuously without temporarily stopping the laser processing machine 1 than in the first embodiment, the operation rate of the laser processing machine 1 can be further increased, and the productivity can be improved. Can be.

The present invention is not limited to the embodiment described above, but can be embodied in other modes by making appropriate changes. In this embodiment, the laser processing machine 1 for three-dimensional processing has been described as a processing machine.
A laser processing machine for two-dimensional processing, or another processing machine such as a plasma processing machine may be used.

The pallet stocker 5 (5R, 5L)
The mechanism for carrying in and out the material W or the product G between the elevator and the elevator 71 may be a mechanism for hooking the pallet P with a hook or the like and taking it in and out. Furthermore, the example in which the parallel link 107 is rotated to provide the guide roller member 113 so as to be freely switchable between the supported state and the unsupported state of the pallet P has been described, but a mechanism using a rack and pinion, a ball screw and a nut member, or the like may be used. You may do it.

[0062]

As can be understood from the above description of the embodiments, in short, in the invention according to claim 1,
The left and right support arms 83L and 83R of the elevator 71 provided to be movable up and down on the front side of the pallet stocker 5 are provided with left and right guide members 113 for guiding and supporting the pallet P in the front-rear direction. ,
The left and right support arms 83L and 83R are provided so as to be movable in the direction of protruding and retracting with respect to the inner surfaces facing each other.

Therefore, when the guide member 113 is moved in the protruding direction, the pallet P can be supported by the elevator 71 and moved up and down.
When the guide member 11 is moved in the direction of immersion,
Since the support of the pallet P by the pallet 3 is released, the pallet P can be directly placed on the table of the processing machine from the elevator 71. The pallet on the table can be directly supported by the elevator 71 by the reverse operation.

Therefore, a conventional loading device,
The unloading device can be omitted, and the configuration can be simplified and the space can be saved.

In the configuration according to the second aspect, the left and right pallet stockers are provided with elevators respectively, and the left and right elevators are integrally moved so that the elevators can be moved up and down by a common lifting / lowering operating device. Since they are connected, the structure for moving the elevator up and down can be made simpler, and pallets can be alternately carried in and out of the left and right pallet stockers, so that the processing efficiency can be improved. .

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a right side view as viewed from the right side in FIG.

FIG. 3 is a front view of FIG.

FIG. 4 is a perspective view of a vertically movable elevator.

FIG. 5 is a perspective view showing an example of a switching mechanism for taking in and out a roller guide member supported by the elevator.

FIG. 6 is a plan view of another embodiment embodying the present invention.

FIG. 7 is a left side view as viewed from the left side in FIG. 6;

FIG. 8 is a front view of FIG.

FIG. 9 is a front view showing only a laser processing machine portion.

FIG. 10 is a perspective view showing a perspective view of the elevator shown in FIG. 6;

[Explanation of symbols]

 Reference Signs List 1 laser processing machine (processing machine) 3 shelf 5, 5R, 5L pallet stocker 13 table 39 laser nozzle 71 elevator 107 link 113 roller guide member (pallet support section) 117 bracket 123 fluid cylinder 129 rod P pallet W material G product

Claims (2)

(57) [Claims] 1. An elevator (71) is provided at the front side of a pallet stocker (5) having a plurality of shelves (3) capable of accommodating a pallet (P) supporting a material or a product so as to be vertically movable. 71) In a pallet loading / unloading device for a processing machine provided with a pallet loading / unloading device capable of moving a pallet (P) in and out of the shelf (3) in the front-back direction, the pallet (P) is stretched in the front-back direction to the elevator (71). Left and right support arms (83L, 83R) are provided, and left and right guide members (113) that support the pallet (P) and guide the pallet (P) in the front-rear direction are connected to the left and right support arms (83L, 83R).
83R), and the left and right guide members (113) are
A pallet loading / unloading device for a processing machine, wherein the pallet loading / unloading device is provided so as to be movable in a direction in which the left and right support arms (83L, 83R) protrude and retract from opposed inner surfaces. 2. The pallet loading / unloading device according to claim 1, wherein a plurality of pallet stockers (5L, 5R) are arranged adjacent to each other in the left-right direction, and a front side of each of the left and right pallet stockers (5L, 5R). A pallet loading / unloading device for a processing machine, wherein the left and right elevators provided to be vertically movable are integrally connected to each other so as to be vertically moved by a common lifting / lowering operation device.