JP6813271B2 - Work transfer system and work processing method - Google Patents

Description

Embodiments of the present invention relate to a work transfer system and a work processing method.

In order to machine a work (object to be machined) with a machine tool, it is necessary to transport the work to the table of the machine tool and set it. Therefore, conventionally, a supply device for transporting and setting a work to a machine tool and a transport device for the work have been proposed (see, for example, Patent Document 1, Patent Document 2 and Patent Document 3).

For example, in Patent Document 1, a plurality of plate-shaped workpieces are stored in an upright state in a work stocker having a support frame as a framework, and an upright work received from the work stocker by a work delivery device provided with a rotating arm is stored. Described is a flat plate work feeder capable of moving the work closer to the table of a laser machine and then leveling the work.

Further, Patent Document 1 also describes, as another example, an example in which a rotating arm is provided on the work stocker so that the work stocker can travel. Specifically, the plate-shaped work loaded in the horizontal direction is transferred from the general-purpose stocker onto the rotating arm of the work stocker by a suction cup transfer machine, and after the work is erected by the rotating arm, the work stocker itself Described is a flat plate work supply device capable of transporting a work toward a work delivery device to a laser machine while supporting the work in an upright state by traveling.

In this example, it is also described that the work after the processing by the laser processing machine is transferred again by the movable work stocker and sent to a processed stocker different from the general-purpose stocker for sending the unprocessed work. Therefore, it is explained that the processed work can be sent from the movable work stocker to the processed stocker, and at the same time, the unprocessed work can be supplied from the general-purpose stocker to the movable work stocker.

On the other hand, Patent Document 2 discloses a technique for mounting and transporting a work transport pallet having versatility by providing a grip portion that opens and closes according to the shape of the work on a transport path such as a conveyor. There is. In addition, a structure has been proposed in which the work is erected on the work transfer pallet in order to perform work such as visual inspection.

On the other hand, in Patent Document 3, the work transported along the main transport path by the conveyor is moved to the processing area by the work transport carriage, automatic welding is performed by the articulated welding robot, and then the work transport carriage is used again on the conveyor. The technology for returning and carrying out is disclosed.

Japanese Unexamined Patent Publication No. 7-81726 Japanese Unexamined Patent Publication No. 2008-012649 Japanese Unexamined Patent Publication No. 2003-072940

When processing a large number of workpieces on a production line, it is important to promptly supply the workpieces to the processing machine to shorten the construction period of the product or semi-finished product while improving the operating rate of the processing machine. This also applies when manufacturing a wide variety of products or semi-finished products.

Therefore, an object of the present invention is to enable more efficient supply of a wide variety of workpieces to a processing machine.

The work transfer system according to the embodiment of the present invention includes a work delivery device and an evacuation station. The work delivery device sends out the work before machining held by the frame, which is carried in from the transport carriage, toward the machining machine side, and receives the work after machining held by the frame from the machining machine side. .. The evacuation station receives the processed work held by the frame from the work delivery device, and carries out the frame after the work has been removed toward the work delivery device . The work delivery device receives the frame after the work is removed from the evacuation station, and is held at the same position as the position for carrying out the work held by the frame before processing to the work delivery device. It is configured to carry out the frame after the work is removed toward the arriving transport trolley or another transport trolley.

Further, the work processing method according to the embodiment of the present invention includes a step of carrying in the work before machining held by the frame from the transport trolley and sending it toward the processing machine side by using the work transfer system described above . The step of manufacturing a product or a semi-finished product as the work after processing by processing the work with the processing machine, and the work after processing held by the frame by using the work transfer system are described. receiving from the processing machine side is unloaded into the retracted station, a step of removing the workpiece after the processing from the frame in the retracted station, the same as the position for unloading the workpiece before processing that is held by the frame towards conveyance carriage arriving at the position, the frame after the workpiece is removed, and a step of carrying out using the workpiece transport system.

The perspective view which shows the schematic structure of the work transfer system which concerns on 1st Embodiment of this invention. The front view which shows the detailed configuration example of the work delivery device and work transfer carriage shown in FIG. The figure explaining the method of raising and lowering a work by the work delivery device shown in FIG. The figure explaining the method of raising and lowering a work by the work delivery device shown in FIG. The figure explaining the method of raising and lowering a work by the work delivery device shown in FIG. The figure which shows the transport state of the work using the work transfer system shown in FIG. The figure which shows the transport state of the work using the work transfer system shown in FIG. The perspective view which shows the structure of the work transfer system which concerns on 2nd Embodiment of this invention.

The work transfer system and the work processing method according to the embodiment of the present invention will be described with reference to the accompanying drawings.

(First Embodiment)
(Configuration and function)
FIG. 1 is a perspective view showing a schematic configuration of a work transfer system according to a first embodiment of the present invention, and FIG. 2 is a front view showing a detailed configuration example of a work delivery device and a work transfer carriage shown in FIG. is there.

The work transfer system 1 is a system that delivers the work W held by the frame F to the processing machine 2. The work transfer system 1 can be composed of a transfer carriage 3, a work delivery device 4, a work transfer carriage 5, an evacuation station 6, and a carry-out carriage 7.

Specific examples of the processing machine 2 to be delivered the work W include surface treatment equipment such as shot peening equipment, blast processing equipment or solvent treatment equipment, machine tools for machining such as machining centers and milling machines, and assembly of auto riveters and the like. Examples include molding equipment such as equipment, autoclaving equipment and press machines.

The work W to be delivered to the processing machine 2 is delivered to the processing machine 2 while being held by the frame F. Therefore, even when the work W is of various types and has various shapes, by holding the work W in the frame F having at least a part having a common structure, the work W can be transported by the common transport carriage 3. It will be possible. In addition, it can be easily set on the processing machine 2. That is, the components of the work transfer system 1 including the transfer carriage 3 and the processing machine 2 can be configured to hold the frame F. Further, since the work W is delivered to the processing machine 2 while being held by the frame F, it is not necessary to remove the work W from the frame F prior to processing the work W in the processing machine 2.

The transport carriage 3 transports the work W held by the frame F before machining by the machining machine 2 from the jig or table side in the previous process of the work W toward the work delivery device 4, while the work W is removed. It is a trolley for transporting the frame F after being made toward a jig or a table.

That is, when the work W is individually held by the frame F, it is necessary to return the frame F to the supply source of the work W, unlike the case where only the work W is conveyed. Therefore, the transport carriage 3 not only conveys the work W before processing held by the frame F from the supply source of the work W toward the processing machine 2, but also after the work W after processing is removed. The frame F is configured to be conveyed toward the supply source of the work W. As a result, it is possible to transport the work W before machining held by the frame F and the frame F after the workpiece W after machining is removed by the common transport carriage 3.

In the illustrated example, the work W is an aircraft wing structure with reinforcing parts such as stringers attached to the panel. The pre-process of processing by the processing machine 2 is an assembly process of attaching reinforcing parts such as stringers to the panel. Therefore, the transport carriage 3 reciprocates between the work delivery device 4 on the processing machine 2 side and the assembly jig 8 of the work W. Therefore, when a plurality of assembly jigs 8 are installed, the plurality of transport carriages 3 may be reciprocated between the plurality of assembly jigs 8 and the work delivery device 4.

Further, when the work W is transferred from the assembly jig 8 to the transport carriage 3 after the assembly process of the work W, the work W is held by the frame F so that the work of attaching the work W to the frame F becomes unnecessary. The assembly jig 8 is designed so that the work W can be assembled. That is, the assembly jig 8 also has a structure for holding the frame F.

When the assembly jig 8 has a structure for holding the frame F, the assembly jig 8 itself may be transported by the transport carriage 3. If the assembly jig 8 itself is transported by the transport carriage 3, the work for transferring the work W from the assembly jig 8 to the transport carriage 3 can be eliminated.

However, in general, the assembly jig 8 is required to have rigidity in order to ensure positioning accuracy. Therefore, the assembly jig 8 for assembling the large work W is heavy. In such a case, if the work W is transferred from the assembly jig 8 to the transport carriage 3, the weight of the transport carriage 3 can be reduced.

Further, when a large work W such as an aircraft wing structure is to be transported, it is necessary to transport the work W in an upright state so that the height of the work W does not become the minimum. It is preferable from the viewpoint of reducing the size and the traveling space of the transport carriage 3. As a specific example, in the case of a plate-shaped work W such as an aircraft wing structure, it is necessary to carry the work W in an upright state so that the thickness direction of the work W is approximately horizontal. This leads to a reduction in the size of the trolley 3 and the transport space.

Therefore, as shown in the drawing, the transport carriage 3 can be configured to transport the work W and the frame F in an upright state. The same applies to the frame F after the work W after processing has been removed. Further, in consideration of the workability of the assembly work, the assembly jig 8 is also designed to hold the work W and the frame F in an upright state. Therefore, it is not necessary to erect the work W and the frame F in order to transfer the assembled work W and the frame F from the assembly jig 8 to the transport carriage 3.

When transporting the work W and the frame F in an upright state, as shown in the figure, a support cart 3A for holding the work W and the frame F in an upright state is provided on the traveling mechanism 3B. 3 can be configured. A clamp 3C is attached to the support column frame 3A. Therefore, the upper end of the substantially rectangular frame F in the standing state can be held by the clamp 3C. Further, the traveling mechanism 3B is provided with a roller, a crawler type conveyor, or the like so that the frame F holding the work W can be slid on the traveling mechanism 3B from the inside of the support column frame 3A toward the work delivery device 4. You may do so.

Any automatic guided vehicle (AGV: Automated Guided Vehicle) can be used for the traveling mechanism 3B. As a specific example, an AGV in which a magnetic tape is attached to a traveling path and the magnetic tape is detected by a sensor to travel may be adopted as the traveling mechanism 3B. Alternatively, an AGV operated by an operator with a controller may be adopted as the traveling mechanism 3B. Of course, if the work W is lightweight, a non-electric trolley of a type pushed by an operator may be adopted as the traveling mechanism 3B.

The work delivery device 4 sends the work W held by the frame F before machining, which is carried in from the transport carriage 3, toward the machining machine 2, while the work W held by the frame F after machining is sent to the machining machine. It is a device that receives from the 2 side and sends it to the evacuation station 6. Further, the work delivery device 4 is configured to receive the frame F after the work W has been removed from the evacuation station 6 and carry it out toward the transport carriage 3. In other words, the evacuation station 6 is configured to carry out the frame F after the work W has been removed toward the transport carriage 3 through the work delivery device 4. The frame F after the work W has been removed may be carried out from the evacuation station 6 toward the transport carriage 3 without passing through the work delivery device 4.

Depending on the processing machine 2, it may be necessary to tilt and feed the work W held by the frame F in the upright state. For example, in the case of processing in which a force is applied to the plate-shaped work W, the plate-shaped work W is tilted horizontally or diagonally and set on the table in order to stably hold the work W. It may be preferable to do so.

In such a case, the work delivery device 4 receives the work W before machining held by the frame F from the transport carriage 3 in an upright state, and holds the work W before machining by the frame F in a state of being held by the frame F. It is configured so that it can be tilted in a direction different from the standing direction and sent toward the processing machine 2 side, while the work W after machining held by the frame F can be received from the processing machine 2 side and returned to the standing state. Will be done. That is, the work delivery device 4 is provided with a function as a work tilting device for tilting the work W held by the frame F.

It is preferable to raise and lower the work W via the frame F from the viewpoint of raising and lowering the work W of various types with a common structure. That is, it is preferable that the work delivery device 4 is configured so that the frame F holding the work W can be tilted up and down. Therefore, the frame F holding the work W can be tilted by using an arbitrary mechanism.

For example, the frame F can be supported by two or more L-shaped arms so that the L-shaped arms can be raised and lowered. Alternatively, the rotation axis F1 can be provided on the frame F so that the frame F holding the work W can be raised and lowered by the work delivery device 4. In that case, the work delivery device 4 can be configured to rotate the rotation axis F1 of the frame F.

Any structure can be adopted for the mechanism for rotating the rotation axis F1 of the frame F. For example, the frame F may be tilted by an electric rotation mechanism that rotates the rotation shaft F1 of the frame F. In that case, after the frame F is carried into the work delivery device 4, the frame F can be rotated in the tilting direction by a chuck that sandwiches and adds the rotation shaft F1 of the frame F and a rotation mechanism that rotates the chuck. ..

However, when the total weight of the work W and the frame F is large, a very large amount of power is required to raise and lower the work W and the frame F. Therefore, a simple structure that uses gravity to raise and lower the work W and the frame F with a small amount of power can be adopted. Specifically, the frame F is rotatably supported by the rotation axis F1 provided above the center of gravity positions of the work W and the frame F in the upright state, while pushing out below the center of gravity positions of the work W and the frame F. By lowering the rotating shaft F1 in the supported state, the work W and the frame F can be tilted with a small amount of power.

In that case, as illustrated in FIG. 2, the work delivery device 4 can be composed of a support mechanism 10, a rotation assist mechanism 11, an elevating mechanism 12, a roller 13, and a lock mechanism 14.

The support mechanism 10 is a mechanism for rotatably supporting the rotation shaft F1 provided above the positions of the centers of gravity of the work W and the frame F. The support mechanism 10 can be composed of a block 10B provided with a groove 10A for supporting the rotation shaft F1 of the frame F.

In the example shown in FIG. 2, two grooves 10A are provided in the block 10B in the thickness direction of the work W and the frame F having a substantially plate-like structure. That is, any groove 10A can be selected in order to support the rotation axis F1 of the frame F. On the other hand, as in the case where the work W is a wing structure in which a stringer is attached to a panel, the work W is generally plate-shaped, but the position of the center of gravity in the thickness direction is not at the center in the thickness direction of the plate-shaped component. In this case, the rotation axis F1 can be provided at a position shifted from the center position in the thickness direction of the frame F in the upright state according to the positions of the centers of gravity of the work W and the frame F.

Then, by rotatably supporting the rotating shaft F1 with the groove 10A corresponding to the position of the rotating shaft F1 shifted from the center of the frame F, the work W and the frame F can be erected substantially in the vertical direction. Of course, when the position of the center of gravity of the work W is near the center in the thickness direction of the work W, the block 10B provided with the single groove 10A rotatably supports the rotation shaft F1 provided at the center of the frame F. Can be done.

The rotation assist mechanism 11 is a mechanism for pushing out and supporting the work W and the frame F rotatably supported by the support mechanism 10 below the position of the center of gravity of the work W and the frame F. The rotation assist mechanism 11 can be composed of an arm 11B provided with a roller 11A, a moving mechanism 11C for moving the arm 11B forward and backward toward the frame F in an upright state, and a guide mechanism 11D. On the other hand, the bearing F2 can be provided at the position of the frame F below the center of gravity of the work W and the frame F. The guide mechanism 11D is composed of rails, grooves, blocks, or the like for rolling the bearing F2 provided below the frame F in the substantially horizontal direction.

The elevating mechanism 12 is a mechanism for elevating and lowering the support mechanism 3. The elevating mechanism 12 can be configured by providing a mechanism for linear movement such as a ball screw or a rack and pinion on a support frame 12A.

The roller 13 is provided to slide a substantially rectangular frame F to which the work W is attached in the width direction of the frame F. Therefore, the roller 13 is arranged at a position where it contacts the lower surface of the frame F.

The lock mechanism 14 is a mechanism for preventing an unintended tipping over of a substantially rectangular frame F to which the work W is attached. For example, when the frame F is placed on the roller 13, the four corners of the frame F are sandwiched, and when the frame F is raised, the locking mechanism 14 is locked by the contact plate 14A arranged at a position where the frame F is not in contact with the frame F. Can be configured. As a result, when the frame F is placed on the roller 13, the frame F is locked and the frame F can be prevented from tipping over. On the other hand, when the frame F is raised, it becomes an unlocked state. Therefore, the frame F can be raised and lowered.

3 to 5 are views for explaining a method of raising and lowering the work W by the work delivery device 4 shown in FIG.

With the block 10B of the support mechanism 10 lowered to a position lower than the roller 13, the work W and the frame F in the upright state can be carried inside the support frame 12A while sliding using the roller 13. At this time, since the four corners of the frame F are sandwiched between the contact plates 14A of the lock mechanism 14, the work W and the frame F can be erected in the vertical direction. Next, when the block 10B is raised by the elevating mechanism 12, the rotation shaft F1 of the frame F can be supported by the groove 10A of the block 10B as shown in FIG.

Further, when the block 10B is raised by the elevating mechanism 12, the work W and the frame F are raised, and the four corners of the frame F are separated from the contact plate 14A of the lock mechanism 14. As a result, the work W and the frame F are rotatably supported by the block 10B about the rotation axis F1.

Next, the moving mechanism 11C of the rotation assisting mechanism 11 can be driven to move the arm 11B toward the frame F. Then, by pushing out the roller 11A attached to the tip of the arm 11B while contacting the frame F, the work W and the frame F are rotated by a predetermined angle about the rotation axis F1 as illustrated in FIG. be able to. Therefore, the bearing F2 provided below the frame F moves above the guide mechanism 11D in an arcuate locus.

Next, when the block 10B is lowered by the elevating mechanism 12, the bearing F2 provided below the frame F moves while rolling in the horizontal direction along the guide mechanism 11D, as illustrated in FIG. As a result, the work W and the frame F gradually rotate about the rotation axis F1 in the direction of tilting.

On the other hand, the moving mechanism 11C of the rotation assisting mechanism 11 can be driven to move the arm 11B around the rotation axis F1 of the frame F to the opposite side of the bearing F2. Therefore, when the block 10B is further lowered by the elevating mechanism 12, as illustrated in FIG. 5, the frame F is a roller attached to the tip of the arm 11B on the side opposite to the bearing F2 about the rotation shaft F1. Supported by 11A. That is, the frame F is supported by bearings F2 and rollers 11A on both sides of the rotating shaft F1.

As a result, the work W and the frame F are tilted so that the height direction in the upright state is substantially horizontal. Then, when the block 10B is further lowered by the elevating mechanism 12, the rotation shaft F1 of the frame F is separated from the groove 10A of the block 10B, and the block 10B can be retracted. When the work W and the frame F are to stand up from the tilted state, the operation opposite to the tilting operation may be performed. Further, by bringing the arm 11B into contact with the frame F from the opposite direction, the work W and the frame F can be tilted in the opposite direction.

Instead of supporting the bearing F2 of the frame F by the guide mechanism 11D, the frame F may be supported by the arm 11B. In that case, it is appropriate to provide the rotation assist mechanism 11 with a component for supporting the frame F on the opposite side of the rotation shaft F1.

A work transfer cart 5 can be arranged between the work delivery device 4 and the processing machine 2 as needed. In the example shown in FIGS. 2 to 5, the work transfer trolley 5 capable of raising and lowering the table 5A by the lifting device 5B such as a scissor lift and traveling by the traveling device 5C such as wheels is processed with the work delivery device 4. It is provided between the machine 2 and the machine 2.

Therefore, if the work remounting carriage 5 is moved below the work W and the frame F in the collapsed state and then the table 5A is raised by the elevating device 5B, the work supported by the arm 11B and the guide mechanism 11D is supported. W and frame F can be scooped up on table 5A. That is, the work W and the frame F can be transferred from the work delivery device 4 to the work transfer carriage 5.

When the work W and the frame F are placed on the table 5A of the work remounting trolley 5, the work remounting trolley 5 can be moved toward the processing machine 2. Then, the work W and the frame F can be delivered from the work remounting carriage 5 to the processing machine 2. If necessary, a necessary device such as a device for scooping up the work W and the frame F can be provided between the work remounting carriage 5 and the processing machine 2.

The evacuation station 6 is a station for receiving the work W after processing held by the frame F from the work delivery device 4, and sending the frame F after the work W after processing is removed to the work delivery device 4. is there. That is, the work W can be removed from the frame F at the evacuation station 6. The work W may be removed from the frame F automatically by a dedicated device, or may be performed by an operator.

When the work W and the frame F are returned to the upright state in the work delivery device 4, the work W and the frame F are carried out to the evacuation station 6 in the upright state. In that case, the evacuation station 6 can also be composed of a roller or a conveyor for moving the frame F in the upright state while supporting it on the lower surface, and a support column frame provided with a clamp for holding the frame F.

The unloading trolley 7 is a trolley for carrying out the processed work W removed from the frame F at the evacuation station 6 toward a stocker, equipment for the next process, or the like. When the work W is large, the carry-out carriage 7 can also be configured so that the work W can be transported in an upright state.

(Operation and action)
Next, a work transfer method and a work processing method using the work transfer system 1 will be described. Here, a case where the wing structure of an aircraft in which a stringer is attached to a panel is sequentially mass-produced by the processing machine 2 as a work W will be described. 6 and 7 are diagrams showing a transport state of the work W using the work transport system 1 shown in FIG.

First, the assembly jig 8 assembles the first work WA before machining by the machining machine 2. For example, the panel previously held by the first frame FA is fixed to the assembly jig 8. Alternatively, the first frame FA is fixed to the assembly jig 8, and the panel is attached to the first frame FA fixed to the assembly jig 8. Then, the stringer is attached to the panel by using the assembly jig 8.

When the assembly process of the first work WA is completed, the first work WA is transferred from the assembly jig 8 to the transport carriage 3 together with the first frame FA. When the first work WA and the first frame FA are mounted on the transport carriage 3, the transport carriage 3 travels from the assembly jig 8 toward the work delivery device 4 on the processing machine 2 side. When the transport carriage 3 arrives at a position adjacent to the work delivery device 4, the first work WA before processing held by the first frame FA is carried out from the transport carriage 3 to the work delivery device 4. When the first work WA and the first frame FA are carried out from the transport carriage 3, the transport carriage 3 can be returned to the assembly jig 8.

On the other hand, the work delivery device 4 carries in the first work WA before processing held by the first frame FA from the transport carriage 3. Then, the work delivery device 4 knocks down the first work WA before machining held by the first frame FA and sends it toward the machining machine 2. That is, the first work WA and the first frame FA are transferred from the work delivery device 4 to the work transfer carriage 5, and the first work WA and the first frame mounted on the work transfer carriage 5. The FA is transferred to the processing machine 2 by the traveling of the work remounting carriage 5.

On the other hand, the first work WA and the first frame FA are held by the second frame FB by using the assembly jig 8 after being carried out or another assembly jig 8 for the second work WB. 2 work WBs can be assembled. When the assembly process of the second work WB is completed, the second work WB and the second frame FB are transferred from the assembly jig 8 to the transport carriage 3, and the second work WB and the second work WB and the second work WB are moved by traveling the transport carriage 3. Frame FB can be transferred to a position adjacent to the work delivery device 4.

As a result, as illustrated in FIG. 1, while the first work WA and the first frame FA are set in the processing machine 2, the transport carriage 3 is stopped at a position adjacent to the work delivery device 4. The second work WB and the second frame FB can be made to stand by.

Next, the first work WA is machined in the processing machine 2. As a specific example, if the processing machine 2 is an auto riveter, the wing structure with the stringer attached to the panel is studded. Thereby, the first product or the semi-finished product can be manufactured as the first work WA after processing. When the processing of the first work WA is completed, the processed first work WA held by the first frame FA is sent from the processing machine 2 side to the work delivery device 4 by using the work transfer carriage 5. ..

Then, the work delivery device 4 receives the first work WA after processing held by the first frame FA from the processing machine 2 side and stands up. Then, the work delivery device 4 sends the first frame FA and the first work WA in the upright state to the evacuation station 6 to evacuate. At the evacuation station 6, the first work WA after processing is removed from the first frame FA. The processed first work WA removed from the first frame FA is carried out by the carry-out carriage 7 toward the stocker, equipment for the next process, and the like.

On the other hand, as illustrated in FIG. 6, another second work WB before machining held by another second frame FB while at least the first frame FA is retracted at the evacuation station 6. Can be sent out toward the processing machine 2. That is, the work delivery device 4 receives the second work WB and the second frame FB that have been waiting from the transport carriage 3 and knocks them down, and uses the work transfer carriage 5 to use the work transfer carriage 5 to receive the second work WB and the second frame FB. Frame FB is sent out toward the processing machine 2. Therefore, after the first frame FA and the first work WA after processing are sent from the work delivery device 4 to the evacuation station 6, the processing of the second work WB can be started immediately.

On the other hand, as illustrated in FIG. 7, the first frame FA after the first work WA after processing is removed at the evacuation station 6 is the second frame FA after processing held by the second frame FB. Before the work WB of 2 is sent out from the processing machine 2, it is carried out to the transport carriage 3. That is, the first frame FA is carried out from the evacuation station 6 to the transport carriage 3 via the work delivery device 4. Therefore, the transport carriage 3 for carrying the second work WB and the second frame FB into the processing machine 2 can also be used as the transport carriage 3 for carrying out the first frame FA.

The transport carriage 3 on which the first frame FA is mounted can travel to a position adjacent to the assembly jig 8 and carry out the first frame FA to the assembly jig 8 for assembling the next work W. .. Alternatively, the first frame FA may be transported and stored in the stocker of the frame F.

Further, when it is necessary to process another work W by the processing machine 2, the unprocessed work W held by the frame F on the transport carriage 3 or another transport carriage 3 that has conveyed the first frame FA. Can be placed and transferred to a position adjacent to the work delivery device 4. Then, after the second work WB after machining held by the second frame FB is sent out from the machining machine 2 and sent to the evacuation station 6, the unprocessed work W is promptly sent out to the machining machine 2. Processing can be started.

The second work WB after processing is also removed from the second frame FB at the evacuation station 6, and is carried out by the carry-out carriage 7 toward the stocker, equipment for the next process, and the like. The second frame FB after the second work WB after processing is removed is carried out to the transport carriage 3 via the work delivery device 4 in the same manner as the first frame FA. Then, the second frame FB is transferred to the assembly jig 8 or the stocker of the frame F by the transport carriage 3.

That is, in the work transfer system 1, the work transfer method, and the work processing method as described above, the work W held by the frame F is conveyed to the processing machine 2 by the transfer carriage 3, and is processed while being held by the frame F. The work W after the work W is removed from the frame F at the evacuation station 6 and carried out, while the frame F after the work W is removed is carried again by the transport carriage 3.

(effect)
Therefore, according to the work transfer system 1, the work transfer method, and the work processing method, even a wide variety of work W can be processed by a common jig or processing machine 2. That is, even if the shapes of the work W are different, by holding the work W in the frame F having a common structure, it is possible to process with a common jig or processing machine 2.

Moreover, the processed work W can be removed from the frame F at the evacuation station 6 which is not on the carry-in route of the work W to the processing machine 2. Therefore, the work of removing the work W after processing from the frame F does not hinder the carrying of another work W into the processing machine 2. As a result, after the machining of one work W is completed, the next work W in the machining waiting state can be immediately sent to the machining machine 2 and set.

Further, since the frame F after the work W is removed is transported by the transport carriage 3 again, a dedicated transport carriage for an empty frame is unnecessary. That is, the frame F after the work W has been removed can be returned to the original position by the common transport carriage 3.

Further, if the work W is transported in an upright state and is configured to be tilted by the work delivery device 4 when the work W is delivered to the processing machine 2, the required transport space can be reduced even for a large work W. can do. In particular, if the work W can be removed from the frame F in the standing state, the work space for removing the work W from the frame F can be narrowed.

Further, the work using a crane for transporting the work W becomes unnecessary. In particular, by automating the driving of rollers and conveyors and the running of the transport carriage 3, it is possible to automate the continuous processing of a plurality of workpieces W.

(Second Embodiment)
FIG. 8 is a perspective view showing a configuration of a work transfer system according to a second embodiment of the present invention.

The work transfer system 1A according to the second embodiment shown in FIG. 8 is different from the work transfer system 1 according to the first embodiment in that the standby station 20 is provided on the side where the work W is carried into the work delivery device 4. To do. Since the other configurations and operations of the work transfer system 1A in the second embodiment are not substantially different from those of the work transfer system 1 in the first embodiment, the same configuration or the corresponding configurations are designated by the same reference numerals. The explanation is omitted.

In the work transfer system 1A according to the second embodiment, the standby station 20 is provided on the side where the work W is carried into the work delivery device 4. The standby station 20 is a station for waiting the work W before processing, which is held by the frame F and is carried in from the transport carriage 3. Therefore, the work delivery device 4 receives the work W before machining held by the frame F from the standby station 20, while waiting for the frame F after the work W after machining by the machining machine 2 is removed. It is configured to be sent to the station 20.

That is, in the work transfer system 1A in the second embodiment, the station for temporarily installing the frame F to which the work W is attached is provided on the side of carrying the work W into the work delivery device 4 and the work delivery device 4. It is provided on both sides of the work W to be carried out from.

Therefore, before the first work WA after processing held by the first frame FA is sent out from the processing machine 2, the second work WA before processing held by the second frame FA is carried on the transport carriage. It can be carried in from 3 and kept on standby at the standby station 20. Further, after the first frame FA after the first work WA has been removed is carried out to the transport carriage 3, the second work WA after processing held by the second frame FA is released from the processing machine 2. Before being sent out, another work W before processing, which is held by another frame F, can be carried in from the transport carriage 3 and made to stand by at the standby station 20.

Compared to the structure for delivering the work W and the frame F between the transportable carriage 3 and the work delivery device 4, the work W and the frame are between the standby station 20 and the work delivery device 4. The structure for delivering F is simple. For example, mechanisms such as rollers and conveyors provided in the standby station 20 and the work delivery device 4 can be linearly connected. Therefore, in the second embodiment, the unprocessed work W can be more smoothly supplied to the processing machine 2. Further, it is possible to facilitate the automation of the delivery of the work W between the standby station 20 and the work delivery device 4.

(Other embodiments)
Although the specific embodiments have been described above, the described embodiments are merely examples and do not limit the scope of the invention. The novel methods and devices described herein can be embodied in a variety of other modes. In addition, various omissions, substitutions and changes can be made in the methods and devices described herein without departing from the gist of the invention. The appended claims and their equivalents include such various modalities and variations as incorporated in the scope and gist of the invention.

1,1A ... Work transfer system, 2 ... Processing machine, 3 ... Transfer trolley, 3A ... Support frame, 3B ... Travel mechanism, 3C ... Clamp, 4 ... Work delivery device, 5 ... Work transfer trolley, 5A ... Table, 5B ... Elevating device, 5C ... Traveling device, 6 ... Evacuation station, 7 ... Carrying trolley, 8 ... Assembly jig, 10 ... Support mechanism, 10A ... Groove, 10B ... Block, 11 ... Rotation assisting mechanism, 11A ... Roller, 11B ... Arm, 11C ... movement mechanism, 11D ... guide mechanism, 12 ... elevating mechanism, 12A ... support frame, 13 ... roller, 14 ... lock mechanism, 14A ... contact plate, 20 ... standby station, F, FA, FB ... frame, F1 ... Rotating shaft, F2 ... Bearing, W, WA, WB ... Work

Claims (5)

A work delivery device that delivers the pre-machined workpiece held by the frame from the transport carriage toward the machining machine, while receiving the post-machining workpiece held by the frame from the machining machine side.
An evacuation station that receives the processed work held by the frame from the work delivery device, and carries out the frame after the work has been removed toward the work delivery device.
With
The work delivery device receives the frame after the work is removed from the evacuation station, and is held at the same position as the position for carrying out the work held by the frame before processing to the work delivery device. A work transfer system configured to carry out the frame after the work has been removed toward the arriving transport trolley or another transport trolley. The work held by the frame before processing is conveyed from the jig or table side in the previous process of the work toward the work delivery device, while the frame after the work is removed is transferred to the frame. The work transfer system according to claim 1, further comprising a transfer carriage for transporting the jig or the table. Further provided with a standby station for waiting for the work before processing, which is held by the frame and carried from the transport carriage.
The work transfer system according to claim 1 or 2, wherein the work delivery device is configured to receive the work held by the frame before processing from the standby station. The work transfer system according to any one of claims 1 to 3 , further comprising a carry-out carriage for carrying out the processed work removed from the frame at the evacuation station. By using the workpiece transport system according to any one of claims 1 to 4, comprising the steps of: by carrying the workpiece before processing that is held by the frame from the transport carriage feeding toward the working machine side,
A step of manufacturing a product or a semi-finished product as the work after processing by processing the work with the processing machine.
By using the work transfer system, receiving said workpiece after said held machining in the frame from the working machine side is unloaded into the retracted station, the workpiece after the processing from the frame in the retracted station Steps to remove and
Towards conveyance carriage arriving at the same position as the position for unloading the workpiece before processing that is held by the frame, the frame after the workpiece has been removed, out by using the workpiece transport system Steps to do and
Work processing method having.

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