JP7016758B2 - Sub-harness assembly system - Google Patents

Description

The present invention relates to a sub-harness assembly system.

Conventionally, there is a sub-harness assembly system that assembles a sub-harness that constitutes a part of a wire harness used in a vehicle. In the sub-harness assembly system, the sub-harness before the assembly is completed is transported from the carry-in area to the assembly workbench, and the worker attaches the assembly parts to the sub-harness before the assembly is completed on the assembly workbench. The assembly of the sub-harness is completed, and the sub-harness after the assembly is completed is transported to the carry-out area again by the transport device. Here, in order to transport the sub-harness before the assembly completion by the transport device, the sub-harness before the assembly completion is carried into the transport device in the carry-in area, that is, the sub-harness before the assembly completion is transported so as to be in a state where the transport device can transport the sub-harness. The sub-harness before the assembly is completed will be attached to the device.

As a method of attaching the sub-harness before the assembly is completed to the transport device, a worker may perform it (see Patent Document 1). It is also conceivable that the transport device automatically grips one end of the sub-harness (see Patent Document 2).

Japanese Unexamined Patent Publication No. 2014-116120 Japanese Unexamined Patent Publication No. 2010-287369

When the worker does it, he / she must wait until the worker can attach the sub-harness before the assembly is completed to the transport device, and there is a problem that the efficiency of the sub-harness assembly work is reduced. .. When the transport device automatically grips one end of the sub-harness, the transport device grips one end of the long sub-harness and is assembled from the transport device to the assembly workbench. When a worker carries an unfinished sub-harness, it is difficult for the worker to simply grasp one end of the sub-harness and carry the sub-harness to the assembly workbench, resulting in the other sub-harness. The sub-harness will be assembled and carried to the workbench by grasping the part. Therefore, there is a problem that the workability when the worker assembles the sub-harness and carries it to the workbench is low.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sub-harness assembly system capable of improving work efficiency and work ease at least.

In order to achieve the above object, the sub-harness assembly system according to the present invention is arranged on at least two rollers having parallel rotation axes and two rollers thereof, which are arranged apart from each other in the transport direction of the sub-harness before the assembly is completed. The endless chain member to be wound, the transport drive device for rotating at least one of the two rollers, and the endless chain member attached to the endless chain member at equal intervals and attached to the endless chain member. A transport device having a plurality of transport hooks in which an object located below the chain member moves in the transport direction and a tip portion protrudes in the transport direction, and a direction orthogonal to the transport direction with respect to the transport device. An assembly work table provided in one or more, a guide member for guiding the sub-harness to a carry-in position for hooking on the transfer hook, a moving mechanism for moving the sub-harness caught on the guide member to the carry-in position, and the above-mentioned. A carry-in drive device for driving the movement mechanism in synchronization with the movement of the endless chain member is provided, and the guide member is the sub-harness at the carry-in position when viewed from the vertical direction. The intermediate portion of the tip portion overlaps the track of the tip portion, and when viewed from the horizontal direction, the intermediate portion is located above the track of the tip portion at the carry-in position.

The sub-harness assembly system according to the present invention can at least improve work efficiency and workability.

FIG. 1 is a diagram showing a schematic configuration example of a sub-harness assembly system according to an embodiment. FIG. 2 is a diagram showing a configuration example of the sub-harness assembly system according to the embodiment. FIG. 3 is a diagram showing a carry-in device according to an embodiment. FIG. 4 is a diagram showing a carry-in device according to an embodiment. FIG. 5 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 6 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 7 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 8 is an operation explanatory view of the return device in the embodiment. FIG. 9 is an operation explanatory view of the return device in the embodiment. FIG. 10 is an operation explanatory view of the return device in the embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

[Embodiment]
First, the sub-harness assembly system in the embodiment will be described. FIG. 1 is a diagram showing a schematic configuration example of a sub-harness assembly system according to an embodiment. FIG. 2 is a diagram showing a configuration example of the sub-harness assembly system according to the embodiment. FIG. 3 is a diagram showing a carry-in device according to an embodiment. FIG. 4 is a diagram showing a carry-in device according to an embodiment. FIG. 5 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 6 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 7 is an operation explanatory diagram of the take-out device according to the embodiment. FIG. 8 is an operation explanatory view of the return device in the embodiment. FIG. 9 is an operation explanatory view of the return device in the embodiment. FIG. 10 is an operation explanatory view of the return device in the embodiment. Note that FIG. 1 is a view of the sub-harness assembly system 1 viewed from the left side in the width direction, and is a diagram in which the assembly workbench 4, the take-out device 6, and the return device 7 are omitted. FIG. 2 is a view of the sub-harness assembly system 1 viewed from the downward direction in the vertical direction. Here, the X direction in each figure is the longitudinal direction of the sub-harness assembly system in the present embodiment, X1 is the transport direction, and X2 is the non-transport direction opposite to the transport direction. The Y direction is the width direction of the sub-harness assembly system, which is orthogonal to the transport direction, the Y1 direction is the left direction, and the Y2 direction is the right direction. The Z direction is the vertical direction of the sub-harness assembly system, which is orthogonal to the transport direction and the width direction, the Z1 direction is the upward direction, and the Z2 direction is the downward direction and the supply direction.

As shown in FIGS. 1 and 2, the sub-harness assembly system 1 in the present embodiment assembles a sub-harness 100 that constitutes a part or all of the wire harness. After the assembly is completed, the sub-harness 100 attaches a plurality of assembly parts such as connectors and exterior parts (corrugated tubes, protectors, tapes, binding bands, binding bands with clips) to wiring materials such as a plurality of electric wires. It was assembled by that. The sub-harness assembly system 1 is a post-process of the entire assembly process of the sub-harness 100, for example, for a pre-process of assembling connectors or the like to both ends of a wiring material such as a plurality of electric wires. , Used in the process of assembling exterior parts to wiring materials such as multiple electric wires to which connectors are assembled. That is, in the sub-harness 100 before the assembly is completed, the sub-harness 100 has connectors and the like attached to both ends of the wiring material such as a plurality of electric wires, and the intermediate portion 101 thereof excludes only the wiring material or the wiring material and the connector. It will be formed of small assembly parts. The sub-harness assembly system 1 includes a transfer device 2, a carry-in device 3, an assembly workbench 4, a control device 5, a take-out device 6, and a return device 7.

The transport device 2 transports the sub-harness 100 before the assembly is completed in the transport direction. The carry-in area IA is set at one end of the transport device 2 in the transport direction, and the carry-out area OA is set at the other end. As shown in FIGS. 1 and 2, the transfer device 2 has two rollers 21 and 22, an endless chain member 23, a transfer drive device 24, and a plurality of transfer hooks 25.

The two rollers 21 and 22 move the endless chain member 23 by rotating. The two rollers 21 and 22 are arranged so as to be separated from each other in the transport direction and their rotation axes are parallel to each other. In the two rollers 21 and 22 in the present embodiment, the width direction is the rotation axis, the roller 21 is the main roller, and the roller 22 is the driven roller. The two rollers 21 and 22 are rotatably supported around a rotation axis by a bearing member (not shown), and the bearing member is fixed to a floor (not shown) where the sub-harness assembly system 1 is installed. Since the two rollers 21 and 22 move the endless chain member 23 by rotating, the two rollers 21 and 22 transmit a rotational force to the endless chain member 23 by friction or mechanical holding.

The endless chain member 23 is wound around two rollers 21 and 22, and is moved by the rotation of each roller 21 and 22 to move the attached transfer hook 25. The endless chain member 23 is, for example, a chain or an elastically deformable belt. The endless chain member 23 in the present embodiment is formed into an oval shape when viewed from the width direction by being wound around the rollers 21 and 22.

The transport drive device 24 rotates at least one of the two rollers 21 and 22. The transport drive device 24 in the present embodiment rotates the roller 21, which is the main roller, and is an actuator such as a motor, for example. By driving the transport drive device 24, the roller 21 is rotated so that the lower portion of the endless chain member 23 moves in the transport direction. The transport drive device 24 is electrically connected to the control device 5, and the moving speed of the sub-harness 100 in the transport direction by the transport drive device 24 is controlled by the control device 5.

The transport hook 25 transports the sub-harness 100 in the transport direction. The transport hook 25 in the present embodiment hooks the intermediate portion 101 of the sub-harness 100. The transport hooks 25 are attached to the endless chain member 23 at equal intervals. The transport hook 25 is attached to the outside of the endless chain member 23 with respect to the endless chain member 23. That is, the transfer hook 25 located below the endless chain member 23 moves in the transfer direction. The transport hook 25 has a tip portion 25a formed at the outer end portion of the endless chain member 23. The tip portion 25a is formed so as to project in the transport direction when the transport hook 25 is located below the endless chain member 23. The tip portion 25a in the present embodiment is not parallel to the transport direction, and is formed so that the end portion on the transport direction side is located above the end portion on the non-transport direction side. As a result, the sub-harness 100 that moves in the transport direction by being caught by the transport hook 25 is prevented from coming off the transport hook 25 by moving the tip portion 25a in the transport direction. Here, the transport hook 25 is rotatably supported with respect to the endless chain member 23 with the width direction as the rotation axis, and when it is located below the endless chain member 23, it rotates toward the transport direction. This is regulated by a restricting member (not shown), and an urging force rotating in the transport direction acts on the urging member (not shown). That is, when the transport hook 25 is located below the endless chain member 23, even if it is rotated in the non-transport direction by an external force, if the external force does not act, the transport hook 25 is regulated by the regulating member by the urging force. It will rotate to the position in the transport direction. The regulating member regulates the rotation in the transport direction at a position where the transport hook 25 is parallel to the vertical direction.

The carry-in device 3 is installed in the carry-in area IA in the carry-in device 2, and carries in the sub-harness 100 to the carry-in device 2. As shown in FIGS. 3 and 4, the carry-in device 3 in the present embodiment hooks the intermediate portion 101 of the sub-harness 100 when the transfer hook 25 moves in the transfer direction and is positioned at the carry-in position HI. , Is carried into the transport device 2. The carry-in device 3 has a guide member 31, a moving mechanism 32, and a carry-in drive device 33.

The guide member 31 guides the sub-harness 100 to the carry-in position HI in which the sub-harness 100 is hooked on the transport hook 25. Two guide members 31 in the present embodiment are formed so as to be separated from each other in the width direction. That is, when the sub-harness 100 is hooked on the pair of guide members 31, the intermediate portion 101 of the sub-harness 100 is located in the gap between the pair of guide members 31 when viewed from above and below. The guide member 31 is formed in a rod shape, has a flat portion 31a and an inclined portion 31b, and is fixed to the floor of the installation location of the sub-harness assembly system 1. The flat portion 31a is formed parallel to the transport direction. The inclined portion 31b is connected to the non-transporting direction side end portion of the flat portion 31a, and is formed upward as it goes toward the non-transporting direction side. The inclination angle of the inclined portion 31b with respect to the transport direction is set so that when the sub-harness 100 is hooked on each inclined portion 31b of the pair of guide members 31, the inclined portion 31b can move toward the flat portion 31a by its own weight. .. Here, as shown in FIG. 4, the guide member 31 has the tip of the transport hook 25 in which the intermediate portion 101 of the sub-harness 100 caught on the flat portion 31a is at the carry-in position HI when viewed from the vertical direction. The portion 25a is arranged with respect to the transport device 2 so as to overlap the track T1 (the track formed by the movement of the endless chain member 23 by the rotation of the rollers 21 and 22). Further, as shown in FIG. 3, the guide member 31 is located above the track T1 of the tip portion 25a of the transport hook 25 in the carry-in position HI when viewed from the horizontal direction and the width direction. It is arranged with respect to the transport device 2. Therefore, when the transport hook 25 is located at the carry-in position HI, the tip portion 25a is located between the pair of guide members 31, and the tip portion 25a is the upper end of the guide member 31 when viewed from the width direction. It is located below the part.

The moving mechanism 32 moves the sub-harness 100 on the guide member 31 to the carry-in position HI. The moving mechanism 32 in the present embodiment moves the sub-harness 100 on the inclined portion 31b to the flat portion 31a (carry-in position HI). The moving mechanism 32 is a pin that is movably supported in the vertical direction with respect to a hole (not shown) formed on the upper side of the inclined portion 31b of the guide member 31. When the moving mechanism 32 is located in the upper position, it protrudes upward from the guide member 31, and when it is located in the lower position, it is pulled into the inside of the guide member 31. A plurality of moving mechanisms 32 are formed at equal intervals on the inclined portions 31b of the two guide members 31, respectively, and when viewed from the width direction, the position formed on one guide member 31 and the other guide member 31. It is the same as the position where it is formed. That is, a plurality of sets of moving mechanisms 32 are formed in the pair of guide members 31 in the longitudinal direction. One set of moving mechanisms 32 moves synchronously in the vertical direction by one carrying-in drive device 33. When the moving mechanism 32 of each set is located at the upper position, the sub-harness 100 located on the non-transporting direction side of the moving mechanism 32 cannot move toward the flat portion 31a due to its own weight due to the moving mechanism 32. On the other hand, when the moving mechanism 32 of each set is located at the lower position, the sub-harness 100 located on the non-transporting direction side of the moving mechanism 32 can move toward the flat portion 31a by its own weight.

The carry-in drive device 33 drives the moving mechanism 32. The carry-in drive device 33 is driven in synchronization with the drive of the transfer drive device 24. The carry-in drive device 33 in the present embodiment is an actuator such as a compressed air supply device that moves a pin, which is a moving mechanism 32, between an upper position and a lower position. The carry-in drive device 33 drives the moving mechanism 32 based on the position of a specific transport hook 25 on which the sub-harness 100 is hooked. In the carry-in drive device 33, after the transport hook 25 immediately before the specific transport hook 25 (the transport hook 25 on the transport direction side of the specific transport hook 25) has passed through the carry-in position HI, the specific transport hook 25 Of the plurality of sets of moving mechanisms 32, one set of moving mechanisms 32 located at the end on the transport direction side is moved from the upper position to the lower position before the hook is located at the carry-in position HI. The carry-in drive device 33 is electrically connected to the control device 5, and the drive of each set of moving mechanisms 32 is controlled by the control device 5. For synchronization of the carry-in drive device 33 with respect to the transfer drive device 24, the control device 5 may detect the rotation speed of the transfer drive device 24 and calculate the current position of each transfer hook 25, or the endless chain member 23 may be used. A sensor for detecting movement may be attached to the transport device 2 and the movement may be performed based on the output from the sensor.

As shown in FIG. 2, the assembly workbench 4 is an assembly workbench in which a worker 200 performs work on a sub-harness 100 before completion of assembly, which is conveyed by a transfer device 2. The assembly workbench 4 in the present embodiment is an assembly workbench in which the worker 200 assembles the exterior parts to the sub-harness 100 before the assembly is completed to complete the sub-harness 100. One or more assembly workbenches 4 are provided with respect to the transport device 2 in a direction orthogonal to the transport direction. The assembly workbench 4 in the present embodiment is separated from the transport device 2 in the transport direction on the left side in the width direction of the three units 4A, 4C, 4E, and is separated in the transport direction on the right side. A total of 5 units, 4B and 4D, are installed. Here, the transport hook 25 of the transport device 2 is associated with each of the assembly workbenches 4A to 4E, and when one transport hook 25 is for the assembly workbench 4A, the transport hook 25 is not for the assembly workbench 4A. The adjacent transport hooks 25 on the transport direction side correspond to the assembly workbench 4B, and the adjacent transport hooks 25 on the non-transport direction side of the transport hook 25 with respect to the assembly workbench 4B correspond to the assembly workbench 4C. The adjacent transport hooks 25 correspond to the assembly workbench 4D on the non-transportation direction side of the transport hook 25 with respect to the assembly workbench 4D, and the adjacent transport hooks 25 correspond to the assembly workbench 4E on the non-transportation direction side of the transport hook 25 with respect to the assembly workbench 4D. do. In the transport device 2, when the transport hooks 25 corresponding to the assembly workbenches 4A to 4E are set as one set, a plurality of sets of transport hooks 25 are attached to the endless chain member 23. The assembly workbenches 4A to 4E and the corresponding transport hooks 25 are color-coded in different colors to improve the recognition of the worker 200.

As shown in FIGS. 2, 5 to 7, the take-out device 6 takes out the sub-harness 100 conveyed by the transfer device 2. The take-out device 6 corresponds to each of the assembly workbenches 4A to 4E, and is arranged between the transfer device 2 and the assembly workbench 4A to 4E, respectively. In the take-out device 6 in the present embodiment, the specific transfer hook 25 moves the sub-harness 100 hooked on the specific transfer hook 25 corresponding to the assembly workbench 4A to 4E corresponding to the take-out device 6 in the transfer direction. It is taken out in a state. The take-out device 6 has a moving hook 61, a take-out drive device 62, and a base 63.

The moving hook 61 takes out the sub-harness 100 caught on the transport hook 25 from the transport device 2. The moving hook 61 is formed in a rod shape and has a rotation axis in the vertical direction. The moving hook 61 is rotatably supported with respect to the base 63. The base 63 is fixed to the floor at the installation site of the sub-harness assembly system 1. The moving hook 61 has an arm portion 61a, a protruding portion 61b, and a regulating portion 61c. The arm portion 61a is formed so as to extend in the horizontal direction from the upward side end portion of the main body portion of the moving hook 61. A protruding portion 61b is formed at the radial outer end of the arm portion 61a. The protruding portion 61b is a portion on which the intermediate portion 101 of the sub-harness 100 caught on the transport hook 25 is placed. The protruding portion 61b is formed so as to protrude to the right in the width direction at the standby position, to the left of the width direction at the take-out position, and to protrude in the transport direction when the extending direction of the arm portion 61a is parallel to the width direction. Has been done. The regulating portion 61c prevents the sub-harness 100 caught on the moving hook 61 from falling from the moving hook 61. The regulating portion 61c is formed so as to project upward from the protruding portion 61b. The restricting portion 61c in the present embodiment is an upward side end portion of the main body portion of the moving hook 61. Here, as shown in FIG. 5, the moving hook 61 is formed by the orbit T2 (rotational orbit) of the protrusion 61b formed by the rotation of the moving hook 61 and the conveying hook 25 when viewed from the vertical direction. Of the sub-harnesses 100 to be transported, the sub-harness 100 is formed so as to at least partially overlap with the track T3 of the intermediate portion 101. Further, the moving hook 61 is formed so that the protruding portion 61b of the sub-harness 100 conveyed by the conveying hook 25 is located below the intermediate portion 101 when viewed from the horizontal direction and the width direction. There is.

The take-out drive device 62 rotates the moving hook 61 with respect to the base 63. The take-out drive device 62 in the present embodiment rotates the moving hook 61 so that the transport direction is included in the tangential direction of the track T2 of the protrusion 61b. The take-out drive device 62 is an actuator such as a motor. The take-out drive device 62 rotates the moving hook 61 between the standby position and the take-out position. Here, the standby position is a position where the arm portion 61a is parallel to the transport direction and the protruding portion 61b is on the non-transport direction side, and the take-out position is a position where the arm portion 61a is parallel to the transport direction and protrudes. The position is such that the portion 61b is on the transport direction side. The take-out drive device 62 rotates the moving hook 61 in the standby position in a direction approaching the transport device 2 to move it to the take-out position. As shown in FIG. 5, the take-out drive device 62 is a transport hook 25 (on the transport direction side of the specific transport hook 25) immediately before the specific transport hook 25 corresponding to the assembly workbench 4 to which the take-out device 6 corresponds. The moving hook 61 is rotated from the standby position after the transport hook 25) of the above has passed in front of the moving hook 61 and before the specific transport hook 25 faces the moving hook 61 in the width direction. In particular, as shown in FIG. 6, the take-out drive device 62 rotates the arm portion 61a so as to be parallel to the width direction before the specific transfer hook 25 faces the moving hook 61 in the width direction. The take-out drive device 62 is electrically connected to the control device 5, and the rotation start timing, rotation speed, and the like of the moving hook 61 are controlled by the control device 5. For synchronization of the take-out drive device 62 with respect to the movement of the endless chain member 23, the control device 5 may detect the rotation speed of the transfer drive device 24 and calculate the current position of each transfer hook 25, or the endless chain member. A sensor for detecting the movement of the 23 may be attached to the transport device 2 and performed based on the output from the sensor.

As shown in FIGS. 2 and 8 to 10, the return device 7 returns the sub-harness 100 worked on the assembly workbench 4 to the transfer device 2. The return device 7 corresponds to each of the assembly workbenches 4A to 4E, and is arranged between the transfer device 2 and the assembly workbench 4A to 4E, respectively. In the return device 7 of the present embodiment, the sub-harness 100 is moved to the specific transfer hook 25 corresponding to the assembly workbench 4A to 4E corresponding to the return device 7, and the specific transfer hook 25 is moving in the transfer direction. It is something that can be hooked up with. The return device 7 includes a base 71, a fixing member 72, a mounting member 73, and a return drive device 74.

The base 71 supports the fixing member 72. The base 71 in the present embodiment has the fixing member 72 up to a position where the intermediate portion 101 of the sub-harness 100 mounted on the mounting member 73 attached to the fixing member 72 overlaps the track T1 of the tip portion 25a of the transport hook 25. It supports it so that it can be moved. The base 71 movably supports the mounting member 73 from the standby position to the return position in the width direction. The base 71 is fixed to the floor of the installation location of the sub-harness assembly system 1.

The fixing member 72 is to which the mounting member 73 is attached.

The mounting member 73 mounts the sub-harness 100. Two mounting members 73 in the present embodiment are formed so as to be separated from each other in the width direction. That is, when the sub-harness 100 is mounted on the pair of mounting members 73, that is, when the sub-harness 100 is hooked, the intermediate portion 101 of the sub-harness 100 is placed in the gap between the pair of mounting members 73 when viewed from above and below. It will be located. The mounting member 73 is formed in a rod shape and is fixed to the fixing member 72 in parallel with the transport direction. Here, as shown in FIG. 9, in the mounting member 73, when viewed from the vertical direction, the intermediate portion 101 of the sub-harness 100 mounted on the mounting member 73 at the return position is the tip of the transport hook 25. It is formed so as to overlap the orbit T1 of the portion 25a. Further, the mounting member 73 is formed so that the tip portion 25a of the transport hook 25 is located below the intermediate portion 101 of the mounted sub-harness 100 when viewed from the horizontal direction and the width direction. There is.

The return drive device 74 moves the mounting member 73 with respect to the base 71. The return drive device 74 in the present embodiment moves the intermediate portion 101 of the sub-harness 100 mounted on the mounting member 73 to a position overlapping the track T1 of the tip portion 25a of the transport hook 25. The return drive device 74 is an actuator such as a motor. The return drive device 74 moves the mounting member 73 between the standby position and the return position. Here, the standby position is the position where the mounting member 73 is on the assembly workbench 4 side in the width direction, and the return position is the gap between the pair of mounting members 73 when viewed from the vertical direction. It is a position that overlaps with the track T1 of the tip portion 25a of the transport hook 25. As shown in FIG. 9, the return drive device 74 has a transfer hook 25 (on the transfer direction side of the specific transfer hook 25) immediately before the specific transfer hook 25 corresponding to the assembly workbench 4 to which the return device 7 corresponds. The mounting member 73 is moved from the standby position to the return position after the transport hook 25) of the above has passed in front of the mounting member 73 and before the specific transport hook 25 faces the mounting member 73 in the width direction. .. The return drive device 74 is electrically connected to the control device 5, and the movement start timing, movement speed, and the like of the mounting member 73 are controlled by the control device 5. For synchronization of the return drive device 74 with respect to the transfer drive device 24, the control device 5 may detect the rotation speed of the transfer drive device 24 to calculate the current position of each transfer hook 25, or the endless chain member 23 may be used. A sensor for detecting movement may be attached to the transport device 2 and the movement may be performed based on the output from the sensor.

Next, the operation of the sub-harness assembly system 1 in this embodiment will be described. First, a case where the sub-harness 100 is carried into the carrying device 2 by the carrying device 3 will be described. The worker 200 determines which assembly workbench 4A to 4E the specific transfer hook 25 corresponds to, and carries in the sub-harness 100 corresponding to the work performed by each assembly workbench 4A to 4E. Hook on the guide member 31 of. At this time, the moving mechanism 32 is located at the upper position and is not guided by the flat portion 31a of the guide member 31. Here, the plurality of sets of moving mechanisms 32 are driven by the carry-in drive device 33 so that the sub-harness 100 is located between the moving mechanisms 32 of each set. Therefore, the guide member 31 is in a state in which the sub-harnesses 100 hooked on the specific transport hook 25 are arranged in order in advance. Next, the carry-in drive device 33 moves a set of moving mechanisms 32 at the end on the transport direction side from the upper position to the lower position based on the position of the specific transport hook 25. As a result, the sub-harness 100 corresponding to the specific transport hook 25 whose movement is restricted is moved to the flat portion 31a by the set of movement mechanisms 32 at the end on the transport direction side, and moves to the carry-in position HI. At this time, the specific transport hook 25 has not moved to the carry-in position HI. Next, when the specific transport hook 25 moves in the transport direction and moves to the carry-in position HI, the tip portion 25a enters the lower side of the intermediate portion 101 of the sub-harness 100. Next, when the specific transport hook 25 further moves in the transport direction, the sub-harness 100 moves in the transport direction with respect to the guide member 31 in a state where the intermediate portion 101 of the sub-harness 100 is caught by the specific transport hook 25. , The state of being caught in the guide member 31 is released. As a result, the sub-harness 100 is caught by the transport hook 25 and is moved in the transport direction by the transport device 2. The carry-in drive device 33 moves a set of moving mechanisms 32 at the end in the transport direction from a lower position to an upper position, and is adjacent to a set of moving mechanisms 32 at the end in the transport direction on the non-transport direction side. A set of moving mechanisms 32 is moved from the upper position to the lower position. As a result, the sub-harness 100 whose movement is restricted by a set of moving mechanisms 32 at the end in the transport direction and a set of moving mechanisms 32 adjacent to each other on the non-transport direction side moves in the transport direction, and the end on the transport direction side. Movement is restricted by a set of moving mechanisms 32 of the unit. The carry-in drive device 33 repeats the above operation, moves each of the sub-harnesses 100 arranged in order in the guide member 31 in the transport direction, and regulates the movement by a set of moving mechanisms 32 adjacent to each other on the transport direction side.

Next, a case where the sub-harness 100 is taken out from the transport device 2 to the assembly workbench 4 will be described. The take-out drive device 62 rotates the moving hook 61 from the standby position to the take-out position based on the position of the specific transfer hook 25 on which the sub-harness 100 to be taken out is hooked. As a result, as shown in FIG. 5, the protruding portion 61b located at the standby position rotates along the track T2 and enters the lower side of the intermediate portion 101 of the sub-harness 100 caught on the specific transport hook 25. Next, when the moving hook 61 further rotates toward the take-out position, the moving hook 61 rotates faster than the specific transport hook 25 moves in the transport direction, so that the intermediate portion 101 of the sub-harness 100 rotates as a restricting portion. The sub-harness 100 moves in the transport direction with respect to the transport hook 25 in a state of being in contact with the 61c and caught on the protruding portion 61b, and as shown in FIG. 6, the state of being caught on the transport hook 25 is released. Next, when the moving hook 61 further rotates toward the taking-out position, the moving hook 61 rotates to the taking-out position with the sub-harness 100 caught on the protrusion 61b as shown in FIG. 7. As a result, the sub-harness 100 is taken out from the transport device 2 and moved to the assembly workbench 4 by the take-out device 6.

Next, a case where the sub-harness 100 whose work has been performed on the assembly workbench 4 is returned to the transfer device 2 will be described. First, the worker 200 places the sub-harness 100, which has been worked on the assembly workbench 4, on the mounting member 73 located at the standby position. At this time, the worker 200 hooks the sub-harness 100 on the mounting member 73 so that the intermediate portion 101 of the sub-harness 100 is caught over the pair of mounting members 73. Next, the return drive device 74 moves the mounting member 73 from the standby position to the return position based on the position of the specific transfer hook 25 that hooks the sub-harness 100 to be returned. As a result, as shown in FIG. 8, the mounting member 73 located at the standby position moves to the transport device 2 side in the width direction, and as shown in FIG. 9, the sub-harness 100 is hooked on the mounting member 73. The intermediate portion 101 of the above faces a specific transport hook 25 in the transport direction. At this time, since the specific transport hook 25 does not face the mounting member 73 in the width direction, it is located on the non-transporting direction side with respect to the mounting member 73 at the return position. Next, when the specific transport hook 25 moves in the transport direction, the specific transport hook 25 enters the lower side of the intermediate portion 101 of the sub-harness 100 that is caught on the mounting member 73. Next, when the specific transfer hook 25 further moves in the transfer direction, the sub-harness 100 is mounted in a state where the intermediate portion 101 of the sub-harness 100 comes into contact with the specific transfer hook 25 and is caught by the specific transfer hook 25. It moves in the transport direction with respect to the mounting member 73, and as shown in FIG. 10, the state of being caught on the mounting member 73 is released. As a result, the sub-harness 100 is moved from the assembly workbench 4 to the transport device 2 by the return device 7, and is transported again by the transport device 2.

As described above, in the sub-harness assembly system 1 of the present embodiment, when the guide member 31 is viewed from the vertical direction, the intermediate portion 101 of the sub-harness 100 at the carry-in position HI is a position where the intermediate portion 101 of the sub-harness 100 overlaps the trajectory of the tip portion 25a. Moreover, when viewed from the horizontal direction, the sub-harness 100 is located above the track of the tip portion 25a in the carry-in position HI. Therefore, when the sub-harness 100 is guided to the carry-in position HI by the guide member 31, the tip of the transport hook 25 is guided. As the portion 25a enters the lower side of the intermediate portion 101 and the transport hook 25 moves in the transport direction, the intermediate portion 101 of the sub-harness 100 is caught by the transport hook 25. Therefore, since the sub-harness 100 before the assembly is completed is automatically attached to the transfer device 2, the sub-harness 100 is transferred as compared with the case where the worker 200 attaches the sub-harness 100 to the transfer device 2. Since the work of attaching to the device 2 can be eliminated, the work efficiency can be improved. Further, the sub-harness 100 is moved in the transport direction by the transport hook 25 with the intermediate portion 101 caught. Therefore, as compared with the case where one end of the sub-harness 100 is gripped and transported, the transport area in the vertical direction can be narrowed when viewed from the transport direction, so that the sub-harness assembly system 1 is installed. Space can be reduced. Further, when moving the sub-harness 100 from the transport device 2 to the assembly workbench 4, in the present embodiment, when moving the sub-harness 100 from the take-out device 6 to the assembly workbench 4, or when moving the sub-harness 100 from the assembly workbench 4. When moving the sub-harness 100 to 2, in the present embodiment, when the sub-harness 100 is moved from the assembly workbench 4 to the return device 7, the intermediate portion 101 of the sub-harness 100 that is caught is transferred to the worker 200. On the other hand, since it is the closest portion, the worker 200 can easily move by simply grasping the intermediate portion 101, so that the workability can be improved.

The sub-harness assembly system 1 in the present embodiment includes a return device 7, but the present invention is not limited to this, and the return device 7 may be omitted. In this case, the sub-harness 100 worked on the assembly workbench 4 is not returned to the transfer device 2, but is put into a BOX for collecting the completed sub-harness 100 from the worker 200, or carried into another process. Will be.

The sub-harness assembly system 1 in the present embodiment is intended for the sub-harness 100 before completion, but is not limited to this, and is used for a sub-harness after completion or a wire harness in which a plurality of sub-harnesses are assembled. You may.

1 Sub-harness assembly system 2 Transport device 21, 22 Roller 23 Endless chain member 24 Transport drive device 25 Transport hook 25a Tip 3 Carry-in device 31 Guide member 32 Movement mechanism 33 Carry-in drive device 4, 4A-4E Assembly workbench 5 Control device 6 Extraction device 61 Moving hook 62 Extraction drive device 7 Return device 71 Base 72 Fixing member 73 Mounting member 74 Return drive device 100 Sub-harness 101 Intermediate part 200 Worker T1 to T3 Track

Claims (1)

At least two rollers that are spaced apart in the transport direction of the sub-harness before assembly and whose axes of rotation are parallel,
An endless chain member wound around the two rollers,
A transport drive device that rotates at least one of the two rollers,
A plurality of those attached to the endless chain member at equal intervals and attached to the endless chain member, those located below the endless chain member move in the transport direction, and the tip portion protrudes in the transport direction. Transport hook and
With a transport device,
An assembly workbench provided with respect to the transport device in a direction orthogonal to the transport direction, and an assembly workbench.
A guide member that guides the sub-harness to a carry-in position where the sub-harness is hooked on the transport hook, and
A moving mechanism that moves the sub-harness caught on the guide member to the carry-in position, and
A carry-in drive device that drives the movement mechanism in synchronization with the movement of the endless chain member,
With a carry-in device,
Equipped with
The guide member is at a position where the intermediate portion of the sub-harness at the carry-in position overlaps the trajectory of the tip portion when viewed from the vertical direction, and when viewed from the horizontal direction, the guide member is said at the carry-in position. Located above the orbit of the tip,
A sub-harness assembly system featuring that.

Images