JP5883359B2 - Work processing and conveyance system - Google Patents

Description

  The present invention relates to a work processing / conveying system, and in particular, a workpiece is loaded on a processing pallet and loaded into a cutting machine, and the processed workpiece is unloaded from the cutting machine, separated from the processing pallet, and collected on a product pallet. The present invention relates to a workpiece processing and conveying system.

  2. Description of the Related Art Conventionally, as a kind of automatic warehouse, there is known an apparatus that automates processing of a workpiece in a processing machine such as a laser processing machine and loading / unloading of the workpiece related to the processing. In such a workpiece processing loading / unloading device, for example, a processing pallet on which a workpiece is set is loaded into a processing machine, and a processing pallet on which a processed workpiece that has been processed by the processing machine is set is unloaded. It has been known.

  For example, in patent document 1, an example of such a carrying in / out apparatus is described. In this carry-in / carry-out apparatus, the workpiece | work (W) mounted in the process pallet (5) placed in the board | plate material supply / carry-out station (S2) is adsorbed and hold | maintained by the adsorption | suction means (37) (refer FIG. 5, FIG. 6). . In this state, the processed workpiece (W ′) carried on the processing table (19) from the processing station (S1) to the plate material supply / unloading station (S2) is moved to the product pallet retreat station (S3) side by the fork (51). The workpiece (W) of the suction means (37) is placed on the processing table (19) while being temporarily retracted (see FIGS. 8 and 9). Thereafter, after the processing table (19) is conveyed to the processing station (S1), the fork (51) is advanced to the plate material supply / unloading station (S2) (see FIG. 10) and supported by the fork (51) by the suction means (37). The processed workpiece (W ′) is held, the fork (51) is returned to the product pallet retracting station (S3) (see FIGS. 11 and 12), and the travel lifter (35) is moved from the product pallet retracting station (S3). It carries in to a board | plate material supply carrying-out station (S2).

  Then, the hydraulic jack of the traveling lifter (35) is raised and the processed workpiece (W ′) held by the suction means (37) is placed on the product accumulation pallet (7) of the traveling lifter (35) (the relevant (See FIG. 12 of Document 1). Further, the hydraulic jack of the traveling lifter (35) is lowered and the lifter is conveyed to the product pallet evacuation station (S3).

JP 2001-113392 A

  However, in the apparatus described in Patent Document 1, as described above, a plurality of product workpieces are loaded in order to collect the processed workpiece (W ′) from the processing machine after completion of the processing and carry it out to the outside. The lifter cart (35) holding the product accumulation pallet (7) is moved from the product pallet evacuation station (S3) to the plate material supply / unload station (S2) (see FIG. 10 of Patent Document 1), and the lifter cart ( 35) is raised to the suction holding height of the processed workpiece (W ′) by a hydraulic jack, and the processed workpiece (W ′) is received from the suction means 39 (see FIGS. 11 and 12 of Patent Document 1).

  Here, since the product pallet (7) held by the lifter carriage (35) is loaded with a plurality of workpieces, its weight reaches a high weight of about several tons. High-cost equipment such as the above hydraulic jack suitable for holding and transporting the heavy product pallet (7) is required.

  Furthermore, in the apparatus described in Patent Document 1, in the plate material supply / unloading station (S2), supply of the pallet (5) on which the workpiece (W) is set to the processing machine and processing of the processed workpiece (W ′) are performed. It is necessary to carry out both. Therefore, the processed workpiece (W ′) that has been processed and transferred to the plate material supply / unload station (S2) is held by the suction means (38) in a state in which it is retracted outside the plate material supply / unload station by the fork (51). Since the material workpiece (W) to be processed next needs to be set on the processing table (19) (see FIGS. 7 to 9), the material workpiece (W) is supplied to the processing machine. Therefore, the so-called tact time is increased and the efficient operation of the system may be hindered.

  This invention is made | formed in view of such a situation, The objective is to provide the workpiece processing conveyance system which can aim at high efficiency, suppressing installation cost.

As a means for solving the above-mentioned problems, a workpiece processing and conveying system for a cutting machine according to claim 1 includes a processing station having a processing machine for processing a material work, a processing pallet on which a material work to be carried into the processing machine is mounted, A workpiece processing / conveying system comprising: a pallet unloading / unloading station for waiting for a processing pallet loaded with a processed work unloaded from the processing machine; and a processed work collecting means for collecting the processed work from the pallet unloading / unloading station. In the system, the pallet loading / unloading station has a loading / unloading device on which a processing pallet loaded with a workpiece is transferred and placed, and the loading / unloading device loads the workpiece on the machining station. Carrying in the processing pallet and carrying out the processing pallet loaded with the processed workpiece The machined workpiece collecting means includes a workpiece separator holder for holding a machined workpiece mounted on the processing pallet in the pallet loading and unloading station is separated from the machining pallet, the pallet loading and unloading station the workpiece separating carrier A workpiece separation holding body advancing / retreating means for moving the workpiece separation holding body up and down, and a workpiece separation holding body lifting / lowering means for moving the workpiece separation holding body up and down, and separating the workpiece while the processed workpiece is held by the workpiece separation holding body The holding body is moved up and down by the workpiece separation holding body lifting / lowering means, and the processed workpiece held by the workpiece separation holding body is lowered to a predetermined product workpiece storage section configured above the pallet loading / unloading station. Features.

  According to the system of the present invention, the workpiece is separated from the machining pallet using the workpiece separation holder from the pallet loading / unloading station, and the workpiece separation holder holds the processed workpiece. The workpiece separation holder is moved up and down by the separation holder lifting means to move to the product workpiece storage unit, and the processed workpiece is lowered. In other words, since only the processed workpiece is separated and held and transported to the workpiece storage unit, the processed workpiece is converted into a product without using a facility for carrying out a heavy product accumulation pallet with a plurality of processed workpieces. Since it can be accumulated in the work storage unit, the equipment can be simplified.

  Further, in the present system, the processed workpiece is transported to the product workpiece storage unit by the workpiece separation holder lifting / lowering means while the processed workpiece is retreated from the pallet loading / unloading station by the workpiece separation holder advancing / retreating means. It becomes. Accordingly, since the transfer is performed away from the pallet carry-in / out station, the work to carry the processed workpiece to the product work storage unit and the pallet carry-in / out station to transport the workpiece to the processing machine are performed. The processing pallet setting operation can be performed without interfering with each other, contributing to the efficiency of the entire system.

  Moreover, the invention according to claim 2 is the workpiece processing and conveying system according to claim 1, wherein the workpiece separation holding body supports the processed workpiece from below, and the processed workpiece is removed from the processing pallet. It is a fork to be taken out. That is, the workpiece separation holder can be constructed with a fork having a simple configuration.

On the other hand, the speed of the fork can be easily adjusted up and down and forward and backward, making it easy to adjust the time it takes to transfer the processed workpiece from the pallet loading / unloading station to the workpiece storage unit. Can be easily adjusted in accordance with the processing time in the processing machine, which contributes to the achievement of efficient system operation.

  Further, the invention described in claim 3 is the workpiece processing / conveying system described in claim 1 or 2, wherein the workpiece separation holding body separates and holds the processed workpieces one by one.

  According to this, when the workpiece separation holder is transported from the pallet loading / unloading station to the workpiece storage unit, it is only necessary to hold the weight of one workpiece. Therefore, it is not necessary to make the work separation holding body strong enough to withstand high weight, or to make the work separation holding up-and-down moving means and the work separation holding body advance / retreat means so as to withstand the conveyance of heavy objects. Therefore, the equipment cost can be reduced.

Furthermore, the invention according to claim 4 is the workpiece processing and conveying system according to any one of claims 1 to 3, wherein the processing pallet on which the processed workpiece is mounted is placed at a predetermined position of the pallet loading / unloading station . A processing pallet retracting means for temporarily retracting from the pallet loading / unloading station to the pallet loading / unloading station, and a processing pallet supplying means for supplying a pallet loaded with workpieces to the pallet loading / unloading station machining pallet retracted substantially simultaneously by means, the have the line supply to the predetermined position of the processing pallet supplying means by processing the pallet, the supply path of the machining pallet raw workpiece is mounted, said by the machined workpiece collecting means a vertical moving path of the said product workpiece storage unit of the machined workpiece is not different from each other interfere And wherein the door.

  In this way, while the processed workpiece is mounted on the processing pallet from the pallet loading / unloading station, the processing pallet retracting means temporarily retracts and the pallet loaded with the unprocessed material is moved to the pallet unloading station by the processing pallet supply means. Thus, before the processed workpiece is collected from the pallet loading / unloading station by the workpiece separation holder, the next workpiece can be fed to the pallet loading / unloading station to be sent to the processing machine. Therefore, while the material workpiece is being processed by the processing machine, the processed workpiece can be transported to the workpiece storage unit, and the transfer time of the processed workpiece to the workpiece storage unit is efficient as the workpiece processing time. Can be used well. Therefore, it contributes to further reduction of the tact time, and the efficiency of the system can be further improved.

  According to the workpiece processing / conveying system according to the present invention, since only the processed workpiece is transferred from the processing pallet on which the processed workpiece transferred to the pallet loading / unloading station is set to the workpiece storage unit, Equipment for carrying out the product accumulation pallet is not required, and the simplification is achieved. Therefore, the system construction cost can be reduced.

  In this system, since the processed workpiece is transferred to the workpiece storage unit away from the pallet loading / unloading station, the processed workpiece is transferred to the product workpiece storage unit and the workpiece is processed. The processing pallet setting operation to the pallet carry-in / out station for transporting to the machine can be performed without interfering with each other, and the efficiency of the entire system can be improved.

It is a schematic side view of the workpiece processing and conveying system according to the present embodiment. It is a schematic front view of the laser processing machine in a workpiece | work processing conveyance system. It is a schematic plan view of a workpiece processing conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system. It is a figure explaining operation | movement of a workpiece | work process conveyance system.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG.1 and FIG.2 is explanatory drawing of the workpiece processing conveyance system which concerns on this Embodiment. FIG. 1 is a schematic side view of the workpiece processing / conveying system according to the present embodiment. FIG. 2 is a schematic plan view of the workpiece processing / conveying system.

  As shown in the figure, the workpiece processing / conveying system 10 includes a laser processing station S1 having a laser processing machine for processing a plate-shaped material workpiece W ′ such as a sheet metal, and is adjacent to the laser processing machine. A storage shelf 14P for storing the pallet 13 and the product pallet 15 and a stocker 16 having a pallet carry-in / out station S2 are installed. In addition, this stocker 16 is comprised as a frame-shaped body which has the rack part of several steps of planar view substantially rectangular shape.

  A laser processing machine (not shown) is disposed in the laser processing station S1. The laser processing machine has various configurations for performing laser processing on a material workpiece carried in a state set on a processing pallet. As the laser processing machine, various types such as a three-axis laser processing machine can be used.

  The processing machine targeted by the workpiece processing and conveying system according to the present invention can be used in various ways capable of processing a workpiece workpiece set on a processing pallet instead of the laser processing machine in the above-described embodiment. A processing machine can be used.

  The processing pallet 13 is formed in a substantially rectangular shape in plan view, and includes a skid plate (not shown) in which a large number of skids (sword mountains) are arranged at appropriate intervals so as to set the material workpiece W ′. Engagement pieces 13a and 13b for engaging a lifter lifter tracker 43 and a tracker standby stand tracker 56, which will be described later, are provided at both ends of the processing pallet 13 in the Y-axis direction in the figure.

  The processing pallet 13 is unloaded by the processing pallet loading / unloading device 22 that travels between the pallet loading / unloading station S2 and the laser processing station S1 in the stocker 16 in a state where the material workpiece W ′ and the processed workpiece W are set. Is entered. The processing pallet carry-in / out device 22 is configured to travel on a track 27 laid between the stations S1 and S2. The plan view size of the processing pallet loading / unloading device 22 is substantially the same as or slightly larger than the processing pallet 13 of the stocker 16, and reciprocates between both stations (S1, S2) of the processing pallet loading / unloading device 22. Is performed under the control of an NC controller (not shown).

  On the other hand, the pallet carry-in / out station S2 of the stocker 16 has a suction means 39 in which suction pads 37 such as vacuum pads or magnets are arranged in a lattice structure on a frame structure 38, and a plurality of material workpieces arranged below the suction means 39. A workpiece loading pallet guide rail 40 for setting the material workpiece loading pallet 19 loaded with W ′, and an in-shelf fixed lifting device 30 which is arranged further below the processing pallet setting guide rail 40 and lifts the processing pallet 13. Have. In the present embodiment, the material workpiece loading pallet 19 has the same configuration as the product accumulation pallet 15. Thus, by trying to make the form of a pallet common, the increase in the cost concerning manufacture of multiple types of pallets can be suppressed. When the pallet is used as the material work loading pallet 19, the pole 62 is removed, and when the pallet is used as the product accumulation pallet 15, the pole 62 is attached. Can be changed.

  The suction means 39 is provided so that the suction pad 37 can be moved up and down by a lifting device (not shown) so that the material workpiece W ′ and the processed workpiece W can be sucked and held. In addition, each suction pad 37 is configured to be individually controllable, and an efficient suction is performed by using the suction pad 37 at a position corresponding to the shape of the material work in an irregular material work other than a substantially rectangular shape. It is also possible.

  The in-shelf fixed elevating device 30 is configured to be movable up and down so as to take a predetermined ascending state and a descending state, and ascends the processing pallet 13 placed in accordance with the ascending state and the descending state, respectively. And descend.

  Then, on the left side of the stocker 16 in FIG. 1 (positive side in the Y-axis direction), the processing pallet 13, the material work loading pallet 19, and the product stacking pallet 15 from the pallet carry-in / out station S <b> 2 and the work storage unit 60 described later are provided. A pallet transport lifter 41 that can be inserted and removed is provided.

  The pallet transport lifter 41 is provided so as to be movable up and down along the stocker 16 standing direction and fixed at an arbitrary height position by driving means such as a winch (not shown). Is provided with a self-propelled lifter tracker 43 detachably attached to the processing pallet 13, the material work loading pallet, and the product accumulation pallet 15 so as to be movable in the Y-axis direction (left and right direction in FIG. 1) along the guide rail. .

  On the other hand, a pallet stand 53 for temporarily waiting for the processing pallet 13 in the pallet carry-in / out station S2 is provided adjacent to the lower position of the stocker 16 on the right side in FIG. ing. The pallet stand 53 is a self-propelled stand-by that can be engaged with the processing pallet 13 in order to remove and insert the processing pallet 13 supported by the in-shelf fixed lifting device 30 in the pallet carry-in / out station S2. A platform tracker 56 is provided.

  Further, in the present embodiment, a fork lifter 47 is provided for separating and recovering the workpiece W that has been processed from the processing pallet 13 and collecting it in the workpiece storage unit 60.

  The fork lifter 47 includes a fork 51 that separates and holds a processed workpiece W mounted on the processing pallet 13 that is in a raised state by the in-frame fixed lifting device 30 at the pallet carry-in / out station S2, and the fork 51 Drive slide means 51a for moving the fork 51 back and forth to the pallet loading / unloading station S2 and a lifting device 47a for moving the fork 51 up and down along the pallet loading / unloading station S2.

  Specifically, the fork lifter 47 is moved substantially along the side portion of the stocker 16 by the workpiece separating / holding means lifting / lowering means 47a at the height position of the substantially processing pallet loading / unloading device 22 in the pallet loading / unloading station S2 (symbol (C) in the figure). ) To a height position (reference numeral (D) in FIG. 21) in the workpiece storage unit 60, and can be moved up and down at least and can be positioned. Further, the fork 51 is configured to enter the pallet carry-in / out station S2 and the work storage unit 60 at the forward movement position by the driving slide means 51a, and to retreat from there at the backward movement position.

  In addition, the fork 51 has a plurality of teeth provided with a width that fits between the skids (not shown) of the processing pallet 13 and is shifted by a half pitch with respect to the arrangement pitch of the skids.

  Further, the tooth length of the fork 51 is substantially equal to the length of the processing pallet 13 in the Y-axis direction. When the fork 51 is retracted from the pallet loading / unloading station S2 or the workpiece storage unit 60, the fork 51 Can be detached from the processing pallet 13.

  On the other hand, in the present embodiment, the rack portion above the pallet carry-in / out station S2 of the stocker 16 is a workpiece storage unit for storing the processed workpiece (product workpiece) conveyed by the fork lifter 47 as described above. 60. The product storage pallet 15 is disposed in the work storage unit 60, and processing is performed from the fork 51 in the vicinity of one side portion (the installation side of the fork lifter 47) in the Y-axis direction in the flat portion of the product storage pallet. A pole 62 that assists in the work of lowering the finished workpiece W is arranged in parallel with a predetermined gap along the back side of the drawing (the X-axis direction in FIG. 2). In the present embodiment, the gap of the pole 62 is adjusted so that the teeth of the fork 51 enter between them.

  Specifically, when the processed workpiece W is lowered from the fork 51, the fork lifter 47 is lowered while the fork 51 holds the processed workpiece W above the pole 62 (in the Z direction in the drawing). When the fork 51 is moved backward with the position of the pole 62 lower than the height of the pole 62, the processed workpiece W is supported by the pole 62 and is restrained by the product stacking pallet 15, so that only the fork 51 can be pulled out.

  Next, operation | movement of the workpiece processing conveyance system 10 of the said structure is demonstrated, referring FIGS. 3-23. The workpiece processing and conveying system 10 according to the present embodiment is performed by repeating the following steps S101 to S116.

  In the following, the processing pallet 13-1 on which the material workpiece W′1 is set is conveyed to the processing machine of the processing station S1 by the carry-in / out device 22, that is, the material workpiece W′1 is processed in the processing machine. A state in the middle of being performed will be described as an initial state (see FIG. 3).

  In the initial state, the material workpiece loading pallet 19 is set in the pallet carry-in / out station S2 in a state where a plurality of material workpieces are loaded, and one material workpiece W is removed from the material workpiece loading pallet 19 by the suction means 39. In this state, '2' is held. In addition, at the position below the material workpiece loading pallet 19 at the pallet loading / unloading station S2, the in-shelf fixed lifting device 30 is in the raised state, and an empty processing pallet 13-2 on which no workpiece is set is fixed in the shelf. It is arrange | positioned at the raising / lowering apparatus 30, and the standby stand tracker 56 is engaging with the process pallet 13-2 in the advance position. Further, the pallet transfer lifter 41 is set at the height position B, and the lifter tracker 43 is set at a standby position for moving the material work loading pallet 19.

  First, in step S101, the lifter tracker 43 at the standby position shown in FIG. 3 is engaged with the workpiece work pallet 19 as the forward position, and the workpiece workpiece pallet 19 is moved to the lifter tracker 43 as shown in FIG. Is moved onto the pallet transport lifter 41 (see arrow (1) in the figure).

(Loading process)
In step S102, as shown in FIG. 5, the material workpiece W′2 adsorbed by the adsorbing means 39 is loaded onto the processing pallet 13-2 set on the in-shelf fixed lifting device 30 (arrow in FIG. 5). (See (2)).

  In step S103, as shown in FIG. 6, the processing pallet 13-2 on which the material workpiece W′2 is set is transported to the workpiece standby base 53 by the standby base tracker 56 (arrow (3) in FIG. 6). At this time, the suction means 39 is simultaneously returned to the original height position (arrow (4) in FIG. 6).

  In step S104, as shown in FIG. 7, the material work loading pallet 19 held on the pallet transfer lifter 41 is transferred to the pallet transfer / in / out station S2 by the lifter tracker 43 and set (see arrow (5) in FIG. 7). ), The suction means 39 is lowered to hold the material work W′3 set on the uppermost part of the material work loading pallet 19, and in this state, the suction means 39 is raised and returned to the original position (arrow (FIG. 7)). 6)).

  In step S105, as shown in FIG. 8, the lifter tracker 43 is disengaged from the material work stacking pallet 19 and the lifter tracker 43 is retracted to the standby position (see arrow (7) in FIG. 8). The lifter 41 is lowered to the height position C (see arrow (8) in FIG. 8).

(Pallet change process)
In step S106, as shown in FIG. 9, the in-shelf fixed lifting device 30 is slightly lowered (see arrow (9) in FIG. 9). Then, in this state, the processed workpiece W1 that has been processed by the laser processing machine is unloaded to the pallet unloading / unloading station S2 by the unloading / unloading device 22 together with the processing pallet 13-1 on which it is set (reference numeral (FIG. 9)). 10)).

  In step S107, as shown in FIG. 10, the processing pallet 13-1 is slightly raised by the in-shelf fixed lifting device 30 (see arrow (11) in FIG. 10). Further, in this state, the lifter tracker 43 of the pallet transport lifter 41 is moved forward and engaged with the processing pallet 13-1 (see arrow (12) in FIG. 10).

  In step S108, as shown in FIG. 11, the processing pallet 13-1 is moved onto the pallet transfer lifter 41 by the lifter tracker 43 (see arrow (13) in FIG. 11), and at the same time, the material is moved by the standby tracker 56. The processing pallet 13-2 on which the workpiece W′2 is set is moved onto the shelf lifting / lowering device 30 in the pallet carry-in / out station S2 (arrow (14) in FIG. 11).

  In step S109, as shown in FIG. 12, when the processing pallet 13-2 is slightly lowered by the in-shelf fixed lifting device 30 (see arrow (15) in FIG. 12), the processing pallet 13-2 is unloaded from the processing pallet. It is placed on the insertion device 22 and the engagement state with the standby base tracker 56 is released. Then, in this state, the processing pallet 13-2 is conveyed to the laser processing machine by the processing pallet carry-in / out device 22 (see reference numeral (16) in FIG. 12). At this time, the standby table tracker 56 is moved backward so as to be positioned at the standby position on the pallet standby table 53 closer to the stocker 16 so that the processing pallet can be smoothly moved again (FIG. 12). No. (17))).

(Unloading process)
In step S110, as shown in FIG. 13, the in-shelf fixed lifting device 30 is raised (see arrow (18) in FIG. 13), and the processing pallet 13-1 on which the processed workpiece W1 on the pallet transport lifter 41 is set. Is moved onto the fixed lifting device 30 in the shelf by the lifter tracker 43 (see arrow (19) in FIG. 13).

  In step S111, as shown in FIG. 14, the fork lifter 47 above the work stand 53 is lowered to the height position (C) (see arrow (20) in FIG. 14). Further, the lifter tracker 43 is disengaged from the processing pallet 13-1 and moved to a standby position on the pallet transport lifter 41 (see arrow (21) in FIG. 14).

  In step S112, as shown in FIG. 15, the in-shelf fixed lifting device 30 is slightly lowered (see arrow (22) in FIG. 15), and the standby base tracker 56 is returned from the standby position to the initial position (engagement position) ( (See arrow (23) in FIG. 15).

In step S113, as shown in FIG. 16, the in-shelf fixed lifting device 30 is slightly raised (see arrow (24) in FIG. 16), and the processing pallet 13-1 and the standby platform tracker 56 are engaged.

  In step S114, as shown in FIG. 17, the fork 51 is moved forward into the pallet carry-in / out station S2 by the fork drive means 51a (see arrow (25) in FIG. 17) and placed on the in-shelf fixed lifting device 30. It is inserted into the gap of the skid (not shown) of the processed pallet 13-1.

  In step S115, as shown in FIG. 18, the fork 51 is slightly raised (see arrow (26) in FIG. 18). As a result, the fork 51 protrudes upward from the gap of the skid, the processed workpiece W1 is supported from below, separated from the processing pallet 13-1, and placed on the fork 51.

  In step S116, as shown in FIG. 19, the fork 51 is moved backward by the fork drive means 51a in the state where the processed workpiece W1 is placed on the fork 51 as described above (see arrow (27) in FIG. 19). As a result, the processed workpiece W1 is unloaded from the pallet loading / unloading station S2. On the other hand, the pallet transport lifter 41 is raised to the height position (B) (see arrow (28) in FIG. 19).

  In step S117, as shown in FIG. 20, the fork lifter 47 is raised to the product integration height position (D) (see arrow (29) in FIG. 20).

  In step S118, as shown in FIG. 21, the fork 51 is advanced into the work storage unit 60 of the stocker 16 with the fork lifter 47 in the product accumulation height position (D) (arrow (30) in FIG. 21). reference).

  In step S119, as shown in FIG. 22, the fork 51 is located in the work storage unit 60 at a position lower than the upper end height position (E) of the pole 62 of the product stacking pallet 15, particularly the position closest to the product stacking pallet 15. The fork lifter 47 is lowered as shown (see arrow (31) in FIG. 22). In this state, the teeth of the fork 51 enter between the plurality of poles 62 formed at both ends in the Y-axis direction.

  In step S120, as shown in FIG. 23, in the above state, the fork 51 is moved backward by the fork drive means 51a (arrow (32) in FIG. 23). In this retreating process, the processed workpiece W1 is in contact with a plurality of standing poles 62 and the movement is hindered, so that it does not move with the fork 51 but remains on the product stacking pallet 15 and there. Will be stored.

  In addition, the raising process (arrow (28) in FIG. 19) to the height position (B) of the pallet transport lifter 41 performed in step S116 is not particularly limited to being performed in step S116. What is necessary is just to make it carry out in any process from S116 to step S120.

  By repeatedly performing the above steps S101 to S120 according to the number of workpieces W ′ to be machined, the workpiece machining / conveying system 10 according to the present embodiment operates.

  Note that, as described above, when the workpiece stacking pallet 19 loaded with a plurality of workpieces W is loaded or unloaded, or when the processed workpieces W stacked on the product stacking pallet 15 reach a predetermined amount, Carrying in / out for replacement can be performed using any apparatus, but it is particularly preferable to use the pallet transport lifter 41. Specific embodiments thereof can be appropriately executed by those skilled in the art.

  In the workpiece processing / conveying system 10 of the present embodiment related to the above-described configuration and operating state, the processed workpiece W is separated and held from the processing pallet 13 using the fork 51 from the pallet loading / unloading station S2, and the fork 51 is further processed. In a state where the finished workpiece is held, the fork unit 51 moves the workpiece up and down to the product workpiece storage unit 60, and lowers the processed workpiece onto the product accumulation pallet 15 in the product workpiece storage unit 60.

  Accordingly, the work can be accumulated in the product work storage unit 60 without using a device such as a lifter cart for carrying out the processed work W mounted on the product pallet in a high weight state as in the prior art. In addition, the equipment can be simplified and the cost can be reduced. In particular, the fork 51 of the fork lifter 47 collects the processed workpieces W one by one from the pallet loading / unloading station S2 and transports them to the workpiece storage unit 60. For example, a heavy load such as a hydraulic jack is conveyed. Since it is not necessary to use a device for doing so, the equipment cost can be simplified.

  Further, in the present system 10, the processed workpiece W is transferred to the product workpiece storage unit 60 by the fork lifter 47 in a state where the processed workpiece W is moved from the pallet loading / unloading station S2 by the fork 51, that is, a workpiece standby state. This is performed at a position above the table 53. Therefore, since the conveyance is performed away from the inside of the pallet carry-in / out station S2, the pallet for conveying the processed workpiece W to the product workpiece storage unit 60 and conveying the material workpiece W to the processing machine. The process of setting the processing pallet to the carry-in / out station S2 can be performed without interfering with each other, contributing to the efficiency of the entire system.

  That is, in the workpiece processing and conveying system 10 according to the present embodiment, the fork lifter 47 including the fork 51 is provided in the stocker 16 so that the configuration of the equipment can be simplified and the set of the processing pallet 13 is set. It has a great feature in that an increase in tact time due to interference between work and unloading work of the processed work W1 can be prevented.

  Further, in the present embodiment, the pallet 13-1 loaded with the processed workpiece W1 is temporarily retracted from the pallet carry-in / out station S2 by the lifter tracker 43 of the pallet transport lifter 41, and at the same time, The pallet 13-2 carrying the material workpiece W′2 is set to the pallet carry-in / out station S2 by the standby platform tracker 56 (see FIGS. 11 and 12).

  Accordingly, before the processed workpiece W1 is collected from the pallet carry-in / out station S2 by the fork 51, the processing pallet 13- in which the material workpiece W′2 is set in order to send the next material workpiece W′2 to the processing machine. 2 can be supplied to the pallet carry-in / out station S2.

  Thereby, while the workpiece W′2 is being processed by the processing machine, the processed workpiece W1 is collected by the fork 51 and the processed workpiece W1 is transported to the workpiece storage unit 60 by the fork lifter 47. The time of each process can be used efficiently. Therefore, the tact time can be further reduced.

  Furthermore, in the present embodiment, the work storage unit 60 is provided above the same planar position as the pallet carry-in / out station S2 in the stocker 16. Thereby, space saving of the whole system is realized.

  In particular, the present embodiment is characterized in that the processed workpieces W are stacked one by one on the product stacking pallet 15 placed in the workpiece storage unit 60 by the fork 51 and the fork lifter 47 having the same. is there. That is, as a result, a large amount of equipment can be obtained without configuring a high-cost equipment such as a lifter cart that holds and holds a product accumulation pallet in which a plurality of product works (machined works) are accumulated. Cost reduction will be realized.

  In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary of invention. For example, the form and arrangement of the stocker 16, the pallet transport lifter 41, and the workpiece standby unit 53 can be changed as appropriate. For example, in the above-described embodiment, a place for collecting the processing pallet 13 in which the material workpiece W ′ is newly set in the stocker 16 is provided and supplied to the pallet carry-in / out station S2 as necessary. You may make it give a variation in the operation | movement aspect of the said system 10. FIG.

  In the present embodiment, the processed workpiece W is transferred from the pallet loading / unloading station S2 to the workpiece storage unit 60 by the fork 51 and the fork lifter 47 provided with the fork 51. However, such a transfer is performed. The configuration for this is not limited to the fork 51 and the fork lifter 47, and any configuration can be used as long as the effects of the present invention are achieved. However, on the other hand, by transporting the processed workpiece W by the fork 51 and the fork lifter 47 provided with the fork 51, the equipment can be simplified, and the speed of the fork 51 can be easily moved up and down and moved forward and backward. Therefore, it is easy to adjust the time until the processed workpiece W is transferred from the pallet loading / unloading station S2 to the workpiece storage unit 60. As a result, the transfer time is matched with the processing time of the material workpiece W ′. It can be adjusted and contributes to the achievement of efficient system operation.

  Furthermore, for example, a pallet placing shelf may be set at a position opposite to the laser processing station S1 (a right side position of the pallet carry-in / out station S2 in FIG. 2) in the pallet carry-in / out station S2. Thereby, for example, the pallet can be removed from the pallet carry-in / out station S2 depending on the situation between the processes of steps S101 to S120, and the smooth progress of the process can be promoted. Also, a plurality of types of pallets may be installed on the pallet placement shelf so that a desired pallet can be selected according to the type of workpiece.

  Further, instead of the pallet placing shelf, a table on which a pallet can be placed may be provided. By providing a platform on which a pallet can be placed in this way, the pallet can be carried in and out on a platform where the lifters 41, 47, etc. are not placed and there is no obstacle on the top, It is possible to easily set the work on the pallet according to the situation.

DESCRIPTION OF SYMBOLS 10 Work processing conveyance system 12 Laser processing machine 13 Processing pallet 15 Product accumulation pallet 16 Stocker 19 Material workpiece loading pallet 22 Unloading / unloading device 27 Pallet traveling track 39 Adsorption means 41 Pallet conveyance lifter (processing pallet retracting means)
43 Tracker (processing pallet evacuation means)
47 Fork lifter (machined workpiece collection means, workpiece separation holder advance / retreat means,
Work separation holder lifting and lowering means)
47a Fork elevating device (work separating holder elevating means)
51 Fork (work separation holder)
51a Fork drive means (work separation holding body advance / retreat means)
53 Pallet stand (processing pallet supply means)
S1 Laser processing station S2 Pallet loading / unloading station

Claims (4)

A processing station having a processing machine for processing a material workpiece, a processing pallet loaded with a material work to be carried into the processing machine, and a pallet loading / unloading station for waiting for a processing pallet loaded with a processed workpiece unloaded from the processing machine And a workpiece processing / conveying system having a processed workpiece recovery means for recovering the processed workpiece from the pallet loading / unloading station,
The pallet loading / unloading station has a loading / unloading device on which a processing pallet loaded with material workpieces is transported and placed, and the loading / unloading device is connected to the processing station of a machining pallet loaded with material workpieces. Carrying in and unloading the processing pallet loaded with the processed workpiece,
The processed workpiece collection means includes:
A workpiece separation holder for separating and holding a processed workpiece mounted on a processing pallet at the pallet loading / unloading station, and a workpiece separation holder for moving the workpiece separation holding body forward and backward to the pallet loading / unloading station. Means, and a workpiece separation holder lifting and lowering means for moving the workpiece separation holder up and down,
In a state where the processed workpiece is held by the workpiece separation holding body, the workpiece separation holding body is moved up and down by the workpiece separation holding body lifting / lowering means, and a predetermined product workpiece storage configured at an upper position of the pallet loading / unloading station A workpiece processing / conveying system, wherein the processed workpiece held by the workpiece separation holder is lowered to a part. The workpiece separation holder is
The workpiece processing and conveying system according to claim 1, wherein the workpiece processing and conveying system is a fork that supports the processed workpiece from below and takes out the processed workpiece from the processing pallet. The workpiece separation holder is
The workpiece processing and conveying system according to claim 1, wherein the processed workpieces are separated and held one by one. Processing pallet retracting means for temporarily retracting a processing pallet carrying the processed workpiece from a predetermined position of the pallet transporting / unloading station to the outside of the pallet transporting / unloading station ;
Processing pallet supply means for supplying a pallet loaded with material workpieces to the pallet loading / unloading station,
The machining pallet saving means processing palette retracted substantially simultaneously by, had the row supplied to a predetermined position of the processing pallet by the machining pallet supply means,
The supply path of the processing pallet on which the workpiece is mounted and the up-and-down movement path of the processed workpiece to the product workpiece storage unit by the processed workpiece collection means are different from each other and do not interfere with each other. Work processing conveyance system given in any 1 paragraph of -3.

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