JP2018172041A - Door installation line - Google Patents

Abstract

[PROBLEMS] To reduce the cost and space of a door fitting line. It simplifies the design of the door fitting line, shortens the lead time at start-up, and facilitates layout changes. The arrangement of doors can be easily changed for each area. A door fitting line includes a door removal area 10 for removing a door from a vehicle body B and attaching the door to a carrier jig 60, a first storage area 20 for stocking the door, and a fitting area 30 for assembling various parts to the door. The second storage area 40 stocks the doors assembled with various parts, and the door attachment area 50 for removing the doors assembled with various parts from the carrier jig 60 and attaching them to the vehicle body B. A frame base 70 on which the carrier jig 60 can be mounted is provided in each area 10-50. A transfer robot 80 for transferring doors between the frame bases 70 in the respective areas 10 to 50 is provided. [Selection] Figure 4

Description

  The present invention relates to a door equipping line in which various parts are assembled to a door removed from a vehicle body and attached to the vehicle body again in an automobile assembly process.

  In an automobile assembly process, a door is removed from a vehicle body, various parts are assembled to each other while the vehicle body and the door are conveyed by different paths, and then the door is attached to the vehicle body again. In this case, the assembly facility is provided with a vehicle body assembly line for assembling various components while conveying the vehicle body, and a door fitting line for assembling various components while conveying the door.

  In order to avoid interference with the vehicle body assembly line, a door hanger conveyor that conveys the door in a suspended state is often employed for the door outfitting line. For example, in Patent Document 1 below, a door removal area for removing a door from a vehicle body, an outfitting work area for assembling various parts while the door is conveyed by a hanger conveyor, and door attachment for attaching a door assembled with various parts to the vehicle body A door fitting line with an area is shown.

JP 2010-214577 A

  In the door fitting line, it is necessary to stock all the doors removed from the car body on the line. Thus, in order to convey a large number of doors with a hanger conveyor, a large number of carriers traveling along the rail are required. Since each carrier is a relatively expensive one having a trolley (pulley) and a drive unit, the installation cost increases by providing a large number of such carriers.

  Further, in the door equipping line, since the rails of the hanger conveyor run through each area, it is not easy to design the rails so as to satisfy the conditions required for all areas. In particular, in the door fitting line described above, lifting devices are provided in the door removal area and the door mounting area respectively. However, since such a lifting device cannot be easily moved once installed, Need to be carefully considered. As described above, since the conventional door equipping line takes time to design, the lead time at the start-up of the equipment becomes long, and the layout change after the operation of the equipment is not easy.

  For example, instead of the lifting device as described above, it is conceivable to raise and lower the carrier on which the door is mounted by providing an inclined rail on the hanger conveyor. However, such an inclined rail has to have a gentle angle in order to run the carrier, and the length of the inclined rail required to move up and down by a predetermined height becomes long, requiring a large installation space.

  Further, in the above door fitting line, the optimal arrangement of doors may differ depending on the area. For example, there may be a case where the door arrangement in which the door removed from the vehicle body is easily mounted on the carrier in the door removal area is different from the door arrangement in which the outfitting work is easily performed in the outfitting work area. However, in a door hanger line using a conventional hanger conveyor, since a plurality of doors are mounted in a predetermined arrangement on a single carrier, it is not possible to change the arrangement of the doors on the carrier during the conveyance. It's not easy. In order to change the arrangement of the door once mounted on the carrier, it is necessary to provide ancillary equipment (rotating equipment, etc.) for that purpose, which increases the equipment cost and requires space for installing such equipment. Become.

  The present invention aims to solve various problems in the conventional door fitting line using the above-described hanger conveyor. Specifically, the door fitting line is reduced in cost and space. To facilitate the design of the door fitting line, reduce the lead time at start-up, facilitate the layout change, and make it possible to easily change the door arrangement for each area. Objective.

  In order to solve the above problems, the present invention provides a door removal area for removing a door from a vehicle body and mounting it on a carrier jig, a storage area for stocking the door, an outfitting area for assembling various parts to the door, A door mounting line having a door mounting area for removing the door assembled with parts from the carrier jig and attaching the door to the vehicle body, and each area is provided with a frame base on which the carrier jig can be mounted, Provided is a door equipping line provided with a transfer robot for transferring the carrier jig between the frame bases in the area.

  As described above, the present invention does not provide a hanger conveyor for longitudinally cutting each area as in the prior art, but mounts and conveys a carrier jig on the door and can mount the carrier jig on each area. The carrier jig was transferred between the frame bases in each area. Thereby, since the expensive carrier provided in the hanger conveyor becomes unnecessary, cost reduction is achieved. Moreover, since each area can be designed independently, the design of each area becomes easy.

  In this case, if a dedicated transfer device is provided in order to transfer the carrier jig (door) between the frame bases in each area, it is necessary to carefully consider the installation location in the same manner as the lifting device described above. Therefore, there is a possibility that the design time of the door equipping line will become longer. Therefore, in the present invention, the transfer between the frame bases in each area is performed by the robot. Even after the transfer robot is installed, it can be easily adjusted delicately with the frame base by changing the setting (teaching) of the hand of the transfer robot. The design time of the door lining line can be shortened. As described above, the design of each area is performed independently, and the door transfer line between each area is moved by a robot, which simplifies the design of the door fitting line. The time can be shortened and the layout can be easily changed after the equipment is operated.

  In addition, even if it is necessary to raise and lower the door between each area, it can be raised and lowered by the transfer robot, eliminating the need for conventional large lifting devices and long inclined rails, thus reducing cost and space. Figured.

  In addition, the transfer robot can easily change the arrangement of the doors in each area by transferring the doors between the frame bases in each area. The doors can be arranged in an arrangement suitable for the work.

  By the way, when the conventional hanger conveyor is applied to the above-mentioned storage area and outfitting area, rails are provided that run vertically through these areas, and the door is conveyed by a carrier that runs on the rails. In this case, since the transport means (carrier) in each area is common, the door transport means cannot be different for each area.

  On the other hand, by providing a frame base in each area as described above, and transporting the frame base provided in the storage area and the outfitting area along a predetermined path, the frame base and the means for transporting the door mounted thereon Therefore, the frame base and the door can be transported by transport means suitable for each area.

  Specifically, for example, when a door is transported by a hanger conveyor as in the prior art in the outfitting area, the worker needs to perform the outfitting work while walking with the transported door, so workability is poor. Also, a carrier that is suspended and held by a hanger conveyor is often equipped with a plurality of doors. However, if an outfitting operation is performed on one of the plurality of doors, the entire carrier is shaken. As a result, the outfitting workability of other doors deteriorates. Furthermore, in the outfitting area, in order to prevent erroneous assembly of components, it is necessary to transport a component box containing the components in synchronization with a door to which the components are assembled, and it is necessary to take measures for this purpose.

  Therefore, in the outfitting area, a frame base is provided on the pallet, and the worker performs outfitting work on the pallet, so that the worker can perform outfitting work while moving with the door on the pallet. It becomes easier to work. In addition, since the frame base on which the door is mounted is fixed to the pallet, the suspended carrier like the hanger conveyor does not shake during the outfitting operation, so that the outfitting operation is facilitated. Furthermore, the component box can be arranged near the door only by mounting the component box to be assembled to the door mounted on the pallet on the pallet.

  On the other hand, in the storage area, a large pallet on which an operator can ride is not necessary as described above. Therefore, the frame base is transported by a cart having a minimum size and function necessary for transporting the frame base and the door. Thus, further cost reduction and space saving can be achieved.

  As described above, in the storage area, a frame base is provided on a plurality of carriages transported along a predetermined route, and in the outfitting area, a frame base is provided on a plurality of pallets transported along a predetermined route, When the worker performs the outfitting work on the pallet, the frame base can be transported in a state suitable for these areas.

  In the above case, in the storage area, the pitch of the carriage is preferably as small as possible in order to increase the density of the doors. On the other hand, in the outfitting area, it is necessary to secure a certain pallet pitch (pallet size) to secure a work space. Therefore, by making the pitch of the carriage in the storage area smaller than the pitch of the pallet in the outfit area, the frame stage can be transported at a pitch suitable for each area.

  As described above, in the door fitting line according to the present invention, the carrier jig is mounted on the door and transported, and the frame base on which the carrier jig can be mounted is provided in each area, and the carrier between the frame bases in each area. The jig was transferred by a robot. Thereby, since the conventional hanger conveyor becomes unnecessary, cost reduction and space saving are achieved. In addition, since the design of the door equipping line is facilitated, the lead time at the start-up can be shortened, and the layout change can be facilitated. Furthermore, since the arrangement of the doors can be easily changed for each area without providing any additional facilities, workability in each area is improved.

It is a perspective view of a door fitting line. (A) is a side view of the carrier jig, and (B) is a front view thereof. (A) is a side view of a frame base, (B) is the front view. It is a top view of a door removal area and a 1st storage area. It is a top view of an outfitting area. It is a top view of a 2nd storage area. It is a top view of a door attachment area.

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

  The automobile assembly facility shown in FIG. 1 includes a vehicle body assembly line L for assembling various components to the vehicle body B, and a door fitting line for assembling various components to the door removed from the vehicle body B and reassembling the vehicle body B.

  The door outfitting line includes a door removal area 10 for removing the door from the vehicle body B conveyed through the vehicle body assembly line L, a first storage area 20 for stocking the door, an outfitting area 30 for assembling various parts to the door, and various parts. The second storage area 40 stocks the assembled doors, and the door mounting area 50 for reattaching the doors assembled with various parts to the vehicle body B transported on the vehicle body assembly line L. The door fitting line of the present embodiment is provided across a plurality of floors. In the illustrated example, the first storage area 20, the outfitting area 30, and the second storage area 40 are provided on different floors. Specifically, the door removal area 10 is on the fourth floor (partially on the third floor), the first storage Area 20 is provided on the fourth floor, outfitting area 30 is provided on the third floor, second storage area 40 is provided on the second floor, and door installation area 50 is provided on the first floor.

  The door removed from the vehicle body B is transported while being mounted on the carrier jig 60. As shown in FIG. 2, the carrier jig 60 includes a frame 61, a support portion 62 provided at a lower portion of the frame 61, a conveyance pin hole 63 into which a pin 81 of a transfer robot 80 described later is inserted, A mounting pin hole 64 into which a pin 73 of the frame base 70 to be described later is inserted, and clamp portions 65 a and 65 b provided on the upper portion of the frame 61 are provided. In the illustrated example, a pair of conveyance pin holes 63 are provided at both ends of the frame 61 in the width direction {left and right direction in FIG. 2A}, and a pair of placement pin holes 64 are provided at both ends of the frame 61 in the width direction. Provided. The transport pin hole 63 and the placement pin hole 64 are provided apart in the vertical direction. For example, the placement pin hole 64 is provided below the transport pin hole 63. The door D is mounted on the carrier jig 60 by placing the lower portion of the door D on the support portion 62 and clamping the upper portion of the door D from both sides in the width direction by the clamp portions 65a and 65b. In the illustrated example, one clamp portion 65a is fixed to the frame 61, and the other clamp portion 65b is slidable in the width direction {see the arrow in FIG. 2A}. In a state where one edge of the door D is fitted in a concave groove (not shown) of one clamp part 65a, the other clamp part 65b is slid to place the other edge of the door D in the concave groove (not shown). By fitting, the door D is clamped by the clamp portions 65a and 65b.

  In each of the areas 10 to 50, a frame base 70 on which the carrier jig 60 can be mounted is provided. As shown in FIG. 3, the frame base 70 includes a frame 71, a support portion 72 provided at a lower portion of the frame 71, and a pin 73 protruding upward. In the illustrated example, a pair of pins 73 protrude upward from both ends of the width direction of the frame 71 (the left-right direction in FIG. 3A). The pitch (interval in the width direction) of the pair of pins 73 coincides with the pitch of the pair of mounting pin holes 64 of the carrier jig 60. The carrier jig 60 is inserted into the mounting pin hole 64 of the carrier jig 60 and the lower part of the carrier jig 60 is placed on the support portion 72, so that the carrier jig 60 is mounted on the frame base 70. Mounted on. In the illustrated example, in a state where the carrier jig 60 is mounted on the frame base 70, the carrier jig 60 is not in contact with the base 74 of the pin 73 of the frame base 70, and the carrier jig 60 is positioned in the height direction. Is performed by the support 72.

  A transfer robot 80 for transferring the carrier jig 60 between the frame bases 70 provided in the respective areas 10 to 50 is provided in the door outfitting line (for example, transfer of the door removal area 10 shown in FIG. 4). (See robot 80A). The transfer robot 80 is provided with a hand 82 having a pair of pins 81. The hand 82 can be placed in an arbitrary posture at an arbitrary three-dimensional position by an arm (not shown). The pitch of the pair of pins 81 coincides with the pitch of the conveying pin holes 63 (see FIG. 2) of the carrier jig 60. By inserting the pin 81 of the hand 82 of the transfer robot 80 into the conveyance pin hole 63 of the carrier jig 60 from below and raising the hand 82, the carrier jig 60 can be lifted and conveyed. Although the transfer robot 80 provided in each area has a different number of carrier jigs 60 that can be mounted, the basic structure for mounting the carrier jig 60 is the same. Below, in order to distinguish each transfer robot 80, description is advanced by attaching | subjecting the code | symbol of 80A, 80B ....

  As shown in FIG. 4, in the door removal area 10, a plurality of temporary placement stands 11 a to 11 j fixed to the floor surface, a plurality of transfer robots 80 </ b> A to 80 </ b> F, and a platform 13 on which an operator removes the door. And are provided. In FIG. 4, temporary tables 11d, 11e, 11i, and 11j provided on the fourth floor (the same floor as the first storage area 20) are indicated by solid lines, and are temporarily provided on the third floor (the same floor as the fitting area 30). The stands 11a, 11b, 11c, 11f, 11g, and 11h are indicated by dotted lines.

  Temporary placement stands 11a-11j are provided with a plurality of frame stands 70, respectively. In the present embodiment, the temporary tables 11a, 11b, 11c, 11f, 11g, and 11h each include two frame tables 70, and the temporary tables 11d, 11e, 11i, and 11j each include one frame table 70.

  In the illustrated example, the hands 82 of the transfer robots 80A, 80B, 80E, and 80F are provided with two sets of pins 81, and two carrier jigs 60 (for example, a front door carrier jig 60 and a rear door carrier jig 60). The carrier jig 60) can be transported simultaneously. On the other hand, a pair of pins 81 is provided on the hands 82 of the transfer robots 80C and 80D, and the carrier jig 60 can be conveyed one by one.

  The first storage area 20 is provided with a plurality of carriages 21 that are conveyed in a closed loop along a predetermined route. Each carriage 21 is provided with a plurality (four in the illustrated example) of frame stands 70. Each carriage 21 can run on, for example, a rail provided on the floor, and is driven by an appropriate driving means. A drive means is not specifically limited, For example, the trolley | bogie 21 can be driven by drive parts, such as a motor provided in each trolley | bogie 21, or drive parts, such as a roller provided in the installation side. Alternatively, the carriage 21 may be driven by other driving means such as a chain conveyor.

  As shown in FIG. 5, in the outfitting area 30, a plurality of pallets 31 that are conveyed in a closed loop along a predetermined path, an assembly base 32 provided on the pallet 31, and a plurality of transfer robots 80 </ b> G. ~ 80J, and temporary table 33a, 33b fixed to the floor. The pallet 31 is conveyed by appropriate conveying means such as rails and rollers. The assembly base 32 and the temporary placement bases 33a and 33b are each provided with a plurality (four in the illustrated example) of frame bases 70. On the pallet 31, a parts box 34 in which parts to be assembled to the door on the pallet 31 are housed is mounted. The hands 82 of the transfer robots 80G and 80H are provided with two sets of pins 81, and two carrier jigs 60 (for example, left and right front door carrier jigs 60 or left and right rear door carriers). The jig 60) can be transported simultaneously. On the other hand, the hands 82 of the transfer robots 80I and 80J are provided with four sets of pins 81 and can simultaneously transport four carrier jigs 60 (for example, the left and right front door and rear door carrier jigs 60). It is said.

  As shown in FIG. 6, in the second storage area 40, a plurality of carriages 41 conveyed in a closed loop along a predetermined route, a plurality of temporary placement stands 42a and 42b fixed to the floor, and a plurality of Transfer robots 80K and 80L are provided. Each carriage 41 is provided with a plurality (four in the illustrated example) of frame stands 70. Since the example of the drive means of each trolley | bogie 41 is the same as the trolley | bogie 21 of the 1st storage area 20, description is abbreviate | omitted. Each temporary mounting table 42a, 42b includes a plurality (two in the illustrated example) of frame tables 70. Two sets of pins 81 are provided on the hands 82 of the transfer robots 80K and 80L, and two carrier jigs 60 (for example, the front door carrier jig 60 and the rear door carrier jig 60) are provided. Conveyance is possible at the same time.

  As shown in FIG. 7, in the door attachment area 50, transfer robots 80M and 80N provided on the gantry 51, transfer robots 80O to 80R provided on the floor surface, and each transfer robot 80O. Temporary placement stands 54a to 54d, 55a to 55d, and 56a to 56d provided around -80R are provided. A pair of pins 81 are provided on the hands 82 of the transfer robots 80M to 80R so that the carrier jigs 60 can be conveyed one by one. Each temporary placing table 54a to 54d, 55a to 55d, and 56a to 56d includes a single frame table 70, respectively.

  Hereinafter, each process of said door fitting line is demonstrated in detail.

  As shown in FIG. 4, an empty carrier jig 60 mounted on the frame base 70 of the carriage 21 in the first storage area 20 is provided on the third floor (lower floor) by the transfer robot 80A in the door removal area 10. Two units are transferred onto the frame table 70 of the temporary table 11a (see arrow A1).

  Next, the transfer robot 80B uses the two empty carrier jigs 60 (the right front door and the right rear door) mounted on the temporary placement table 11a on the third floor for the temporary placement table for the right door provided on the third floor. The other two units (the left front door and the left rear door) are transferred to 11c on the left door temporary mounting table 11b provided on the third floor (see arrow A2).

  Next, the transfer robot 80C transfers empty carrier jigs 60 mounted on the left door temporary table 11b to the left door temporary tables 11d and 11i on the frame 13 one by one (arrows). A3). Similarly, the transfer robot 80D transfers the empty carrier jig 60 mounted on the right door temporary table 11c to the right door temporary tables 11e and 11j on the frame 13 one by one (arrow). (See A4).

  Next, an operator on the gantry 13 removes the left rear door and the left front door from the vehicle body B conveyed by the hanger conveyor, and the carrier jig 60 mounted on the temporary placement bases 11d and 11i for the left door on the gantry 13. Attach to. Similarly, another worker removes the right rear door and the right front door from the vehicle body B, and attaches them to the carrier jig 60 mounted on the temporary placement bases 11e and 11j for the right door on the gantry 13. In the following, the carrier jig 60 on which the door before component mounting is mounted is referred to as an “real carrier jig 60 ′”, and is indicated by a rectangle with one diagonal line drawn in the drawing.

  Next, the transfer robot 80C transfers the actual carrier jig 60 'mounted on the temporary placement table 11d, 11i for the left door on the gantry 13 to the temporary placement table 11f provided on the third floor (arrow A5). reference). Similarly, the transfer robot 80D transfers the actual carrier jig 60 ′ mounted on the temporary table 11e, 11j for the right door on the gantry 13 to the temporary table 11g provided on the third floor (arrow A6). reference).

  Next, the transfer robot 80E transfers the actual carrier jig 60 'of the temporary tables 11f and 11g provided on the third floor to the temporary table 11h provided on the third floor (see arrow A7). Thereafter, the transfer robot 80F transfers the actual carrier jig 60 'mounted on the temporary table 11h to the frame table 70 of the carriage 21 in the first storage area 20 (see arrow A8). As described above, a plurality of doors removed from the vehicle body B (in the illustrated example, a total of four doors including left and right front doors and rear doors) are collectively mounted on one carriage 21.

  In the first storage area 20, the carriage 21 on which the actual carrier jig 60 ′ is mounted is conveyed along a closed loop path. When the carriage 21 is conveyed to a predetermined position, the actual carrier jig 60 ′ mounted on the carriage 21 is mounted on the pallet 31 by the transfer robots 80G and 80H in the outfitting area 30 shown in FIG. (See arrow B1 in FIGS. 4 and 5). Then, various parts are assembled to the door of the actual carrier jig 60 ′ on the assembly base 32 fixed to the pallet 31 by an operator on the pallet 31 while the pallet 31 is being transported. When all the parts are assembled to the door on the pallet 31, the outfitting work is completed. Note that the carrier jig 60 on which the doors on which parts are mounted are mounted is referred to as an “real carrier jig 60”, and is indicated by a rectangle with two diagonal lines drawn in the drawing.

  When the pallet 31 is transported to a predetermined position, the actual carrier jig 60 ″ mounted on each frame base 70 of the assembly base 32 on the pallet 31 is transferred to the temporary mounting base 33a by the transfer robot 80I. (See arrow C1.) Then, the actual carrier jig 60 ″ mounted on the temporary table 33a is transferred to the temporary table 42a of the second storage area 40 by the transfer robot 80K of the second storage area 40 shown in FIG. Transferred (see arrow D1 in FIGS. 5 and 6).

  In the second storage area 40, the actual carrier jig 60 "mounted on the temporary table 42a is transferred to the frame table 70 on the carriage 41 which is conveyed in a closed loop along a predetermined path by the transfer robot 80L. When the carriage 41 is transported to a predetermined position, the actual carrier jig 60 "mounted on the carriage 41 is transferred by the transfer robots 80M and 80N in the door attachment area 50 shown in FIG. Then, it is transferred to the temporary mounting bases 54a to 54d in the door mounting area 50 (see arrow E1 in FIGS. 6 and 7).

  Then, the transfer robots 80O to 80R transfer the actual carrier jigs 60 ″ mounted on the temporary placement tables 54a to 54d to the temporary placement tables 55a to 55d (see arrow E2). The installed door of the actual carrier jig 60 ″ of ~ 55d is removed from the carrier jig 60 and assembled to the vehicle body B conveyed on the vehicle body assembly line L. In the illustrated example, a right rear door is mounted on the temporary table 55a, a right front door is mounted on the temporary table 55b, a left rear door is mounted on the temporary table 55c, and a left front door is mounted on the temporary table 55d. Each door is assembled to the vehicle body B.

  The empty carrier jig 60 mounted on the temporary placement tables 55a to 55d is transferred to the temporary placement tables 56a to 56d by the transfer robots 80O to 80R (see arrow E3). Then, the empty carrier jig 60 mounted on the temporary placement tables 56a to 56d is transferred to the frame table 70 of the carriage 41 in the second storage area 40 shown in FIG. 6 by the transfer robots 80M and 80N (FIG. 6). 6 and arrow D2 in FIG. 7). When the carriage 41 is transported to a predetermined position, the empty carrier jig 60 mounted on the carriage 41 is transferred to the temporary table 42b by the transfer robot 80L (see arrow D3). The empty carrier jig 60 mounted on the temporary table 42b is transferred to the temporary table 33b in the outfitting area 30 shown in FIG. 5 by the transfer robot 80K (see arrow C2 in FIGS. 5 and 6). Further, the empty carrier jig 60 mounted on the temporary table 33b is transferred to the frame table 70 on the carriage 21 in the first storage area 20 shown in FIG. 4 by the transfer robot 80J (FIGS. 4 and 4). (See arrow B2 in FIG. 5). When the carriage 21 is transported to a predetermined position near the door removal area 10, an empty carrier jig 60 mounted on the carriage 21 is temporarily placed in the door removal area 10 by the transfer robot 80 </ b> A in the door removal area 10. 11a. By repeating the above, door removal, outfitting, and attachment are sequentially performed.

  The flow of the carrier jig 60 conveyed by the above door fitting line is indicated by arrows in FIG. In FIG. 1, the flow of the carrier jig (actual carrier jigs 60 ′, 60 ″) to which the door is attached is indicated by a solid arrow, and the flow of the empty carrier jig 60 is indicated by a dotted arrow.

  In the above door equipping line, the doors are not conveyed by the hanger conveyor, but the frame base 70 is provided in each area 10-50, and the carrier jig 60 is transferred between the frame bases 70 in each area 10-50. . Thereby, since the expensive carrier provided in the hanger conveyor becomes unnecessary, cost reduction is achieved. Moreover, since each area 10-50 can be designed independently, compared with the case where the hanger conveyor which cuts each area vertically is provided, the design of each area 10-50 is facilitated.

  Further, by transferring the door (carrier jig 60) between the frame bases 70 in the respective areas 10 to 50 by the transfer robot 80, the transfer robot 80 is installed even after the transfer robot 80 is installed in the equipment. By changing the teaching, the delivery of the carrier jig 60 between the frame base 70 and the hand 82 can be adjusted. Accordingly, since the accuracy of the installation location of the transfer robot is relaxed, the design (determination of the placement location of the transfer robot) is facilitated.

  Moreover, in this embodiment, since the door fitting line is provided ranging over several floors, it is necessary to raise / lower the carrier jig | tool 60 between the frame stands 70 provided in a different floor. Even in this case, since the carrier jig 60 can be moved up and down by the transfer robot 80, a conventional large lifting device and a long inclined rail become unnecessary, and cost reduction and space saving can be achieved.

  Moreover, in said door fitting line, it conveys in the state which gathered four doors removed from one vehicle body B. FIG. At this time, in each area 10-50, the optimal arrangement | positioning of four doors may differ. For example, in the door removal area 10, an arrangement in which a worker removes the door from the vehicle body B can be easily mounted on the carrier jig 60 (an arrangement in which the flow line becomes short), and in the outfitting area 30, the door on the pallet 31. There are cases where the arrangement of doors for easy assembly of parts is different. In this case, in the door removal area 10, four doors are arranged in an arrangement that facilitates door removal work, and the door is removed from the door removal area 10 to the first storage area 20 or installed from the first storage area 20. At the time of transfer to the area 30, the arrangement of the four doors can be rearranged and arranged so as to facilitate the outfitting work when set on the pallet 31 in the outfitting area 30.

  Similarly, the door arrangement suitable for the outfitting area 30 may be different from the door arrangement suitable for the door mounting area 50. In this case, four doors arranged in an arrangement suitable for the outfitting area 30 are transferred from the outfitting area 30 to the second storage area 40 or transferred from the second storage area 40 to the door mounting area 50. They can sometimes be rearranged to provide an arrangement suitable for the door mounting area 50.

  In the first storage area 20, the outfitting area 30, and the second storage area 40, the frame base 70 is transported by transport means suitable for each area. Specifically, in the first storage area 20 and the second storage area 40, the assembly work or the like of the parts is not performed on the door, so that the first storage area 20 and the second storage area 40 have the minimum size and function (driving force) necessary for transporting the door. The frame base 70 is conveyed by the carriages 21 and 41. Thereby, the cost of the conveyance means in the 1st and 2nd storage areas 20 and 40 is reduced. In addition, since the pitch between the carriages 21 and 41 can be reduced, the door density in the storage areas 20 and 40 can be increased to save space.

  On the other hand, in the outfitting area 30, the frame base 70 is conveyed by a pallet 31 that is large enough for an operator to ride. In this case, since the worker on the pallet 31 performs the outfitting work, it is not necessary for the worker to perform the outfitting work while walking with the door to be conveyed, so that workability is improved. In addition, since the frame base 70 is fixed to the pallet 31 that is stably transported on the floor surface, the frame base 70 can be used even when performing the outfitting work on a plurality of doors mounted on the frame base 70 at the same time. It does not shake and can prevent deterioration of workability. Furthermore, by placing on the pallet 31 a parts box 34 on which parts to be assembled to the door on the pallet 31 are mounted, the door and the parts to be assembled can be easily and synchronously conveyed. In addition, since the size of the pallet 31 is ensured by increasing the pitch of the pallet 31, a sufficient work space and an arrangement space for the parts box 34 are secured around the assembly base 32 on the pallet 31. Can do.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the case where the first storage area 20, the outfitting area 30, the second storage area 40, and the door mounting area 50 are provided on different floors is shown, but any or all of these are the same. You may apply this invention to the door equipment line provided in the floor. Further, the first storage area 20 or the second storage area 40 may be omitted. In this case, the carrier jig 60 is transferred by the transfer robot 80 from the door removal area 10 to the fitting area 30 or from the fitting area 30 to the door mounting area 50.

DESCRIPTION OF SYMBOLS 10 Door removal area 11a-11h Temporary table 20 1st storage area 21 Car 30 Outfitting area 31 Pallet 32 Assembly table 33a, 33b Temporary table 34 Parts box 40 2nd storage area 41 Car 42a, 42b Temporary table 50 Door attachment area 54a -54d, 55a-55d, 56a-56d Temporary table 60 Carrier jig 60 'Actual carrier jig (carrier jig on which pre-fitting door is mounted)
60 "real carrier jig (carrier jig with pre-equipped door)
70 Frame base 80 (80A-80R) Transfer robot B Car body L Car body assembly line

Claims (3)

A door removal area for removing the door from the vehicle body and mounting it on the carrier jig, a storage area for stocking the door, an outfitting area for assembling various parts to the door, and the door having the various parts assembled for the carrier jig. A door fitting line having a door attachment area that is attached to the vehicle body by removing from the door,
In each area, a frame base on which the carrier jig can be mounted is provided.
A door equipping line provided with a transfer robot for transferring the carrier jig between the frame bases in each area.   The door equipment line according to claim 1, wherein the frame bases provided in the storage area and the equipment area are conveyed along a predetermined path.   3. The door fitting line according to claim 2, wherein the frame table conveying means in the storage area is different from the frame table conveying means in the fitting area.

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