JPH0511939Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a vehicle body member assembly and conveyance device for positioning and coupling a plurality of element parts for constructing a vehicle body member.

<Prior art> For example, in the process of integrally joining multiple element parts by welding, such as manufacturing the body structure of an automobile,
By separating the stage for positioning each element part from the stage for welding and joining the positioned parts, and transporting the element parts from the positioning stage to the welding stage using a cart equipped with a positioning jig, Generally, a method is adopted in which positioning work and welding work can be performed simultaneously in parallel.

However, according to the above-mentioned method, multiple jig carts are required to position the element parts and transfer them to the welding stage, and furthermore, it is necessary to use a plurality of jig carts to position the element parts and transfer them to the welding stage. Since it has to be moved back and forth, there is a disadvantage that the device becomes larger and more complex.

In order to improve such inconveniences, the present applicant has provided setting jigs of roughly the same type for both the positioning stage and the welding stage in Japanese Patent Application Laid-Open No. 57-7387, and has made them movable and movable up and down. We have proposed an assembly and conveyance device that uses a transfer jig configured to transfer parts from a positioning stage to a welding stage.

<Problems to be solved by the invention> By the way, for a member having a relatively wide surface, such as a vehicle floor panel, it is necessary to use a setting jig and a setting jig so that the component support parts do not interfere with each other. However, for members that have an elongated shape parallel to the path of the transfer jig, it is possible to arrange the component support parts of both jigs on the same straight line. This has the disadvantage of causing mutual interference between the two jigs.

In view of the disadvantages of the prior art, the main object of the present invention is to provide an improved vehicle body member assembly and conveyance device that can be adapted to elongated members along the conveyance direction.

<Means for Solving the Problems> According to the present invention, the present invention provides a preset stage for positioning the relative positions of a plurality of element parts for configuring a vehicle body member, and a A vehicle body member assembly and conveyance device includes a combination stage that integrally connects the component parts to each other, and a transfer device that transfers the element parts from the preset stage to the combination stage. a first jig provided on the transfer device, and a second jig provided on the transfer device, and the support portions of the element parts of both the first and second jigs are arranged so that the supporting portions of the component parts are generally alternately adjacent to each other. The arm members, which are provided on the horizontal arm member formed in a comb-teeth shape and include the support portions provided on both the first and second jigs, are placed in a position where they do not interfere with each other in the vertical direction. These first and second
This is achieved by providing a vehicle body member assembly and conveyance device characterized in that at least one of the two jigs is provided with a lifting means.

<Function> In this way, for example, if the arm member is provided in a comb-like shape in a direction crossing the transfer direction, the supporting parts of both the first and second jigs can be attached to the comb-like part. can be passed through each other in the vertical direction.
Therefore, even if the support parts of the element parts are provided on the same straight line on the transfer route, by giving a difference in the height direction between the positions of the support parts of both the first and second jigs. Therefore, mutual interference can be avoided.

<Embodiments> The present invention will now be described in detail with reference to specific embodiments with reference to the accompanying drawings.

FIG. 1 shows the layout of a vehicle floor member assembly device to which the present invention is applied.

This device is for automatically assembling reinforcing members that are installed along the longitudinal direction of the vehicle on the back of the rear floor panel, and manually sets multiple members dumped on the line side in a predetermined positional relationship. It consists of a preset stage 1 for welding together a plurality of members positioned on the preset stage 1. A guide rail 3 is laid between the stages 1 and 2, and a traveling cart 4 is provided on the guide rail 3 for reciprocating between the stages 1 and 2 by itself.

The joining stage 2 is provided with a spot welding machine and a workpiece delivery device (not shown).
After the workpieces placed on the carriage 4 and transferred are welded together, they are transferred to the next process.

Furthermore, a transverse rail 5 is provided adjacent to the end of the guide rail 3 on the opposite side to the coupling stage 2 and extends in a direction perpendicular to the guide rail 3 . A traversing lift 6 is installed on the traversing rail 5, which is used when exchanging a jig to be described later.

As shown in FIGS. 2 and 3, a pair of lifter devices 7 are provided on the preset stage 1 at opposing positions with the guide rail 3 in between. The lifter device 7 vertically raises and lowers a table 7b provided at the top by driving an X-shaped link 7a, and has a preset jig as a first jig configured to be detachable. The tool 8 is fixed to the upper surface of the table 7b by clamp devices 9 provided at front and rear positions of the table 7b.

The traveling trolley 4 is driven by a hydraulic motor 10 so as to be able to freely travel on the guide rail 3, and has guide bars 11 erected at the front and rear positions.
and a linear sliding actuator 1 arranged in the center.
It is equipped with a table 13 that is driven up and down at 2. A locate pin 15 having a built-in locking device 14 is provided on the table 13, and a setting jig 16 as a second jig configured to be detachable is fixed to the upper surface of the table 13. has been done.

The workpiece 17 is formed by press-forming a steel plate into a channel shape, and has a central portion 17a and both end portions 17b, 17.
c is formed by dividing. These mutual joints are made to overlap appropriately, and are integrated by joining the lap parts with spot welding. It has an elongated shape so that it can be extended along the line.

A preset jig 8 fixed on the table 7b of the lifter device 7 has a plurality of arms 18 extending in a direction generally perpendicular to the traveling axis of the moving trolley 4. Support parts 19 corresponding to the cross-sectional shape of the work 17 are formed on the free end sides of these arms 18, and the positional dimensions of these support parts 19 correspond to the completed shape of the divided work 17. It is determined.

The setting jig 16 fixed on the table 13 of the movable cart 4 has a plurality of arms 20 extending in a direction facing the arms 18 of the presetting jig 8. Support parts 21 similar to those of the preset jig 8 are formed at the free ends of these arms 20, and each of these support parts 21 is equipped with a clamp whose upper open part is closed by pneumatic drive. A device 22 is provided.

The arms 18 and 20 of these preset and set jigs 8 and 16 do not interfere with each other when the traveling carriage 4 is on the preset stage 1, and each part 17a to 17 of the workpiece 17 that is divided into parts is
The relative positions of the arms 18 and 20 are determined so as to maintain the completed shape of the arms 18 and 20, and as shown in FIG.
They are arranged like the teeth of a comb.

Next, the operation of the above embodiment will be explained.

First, in a state where the setting jig 16, that is, the traveling cart 4 is not on the preset stage 1, each part 17a to 17a of the work 17 is placed in the support part 19 of the preset jig 8.
17c is placed by the operator, and the lifter device 7 is raised. Next, the table 13 of the traveling carriage 4 is lowered, and the traveling carriage 4 is brought into the preset stage 1 with the clamp device 22 of the setting jig 16 opened. At this time, the height positions of both arms 18 and 20 are determined so that they do not interfere with each other (FIG. 3).

Next, when the preset jig 8 is lowered, since the positional relationship of the support parts 19 and 21 of both arms 18 and 20 is determined in correspondence with each other, the setting jig 16 is moved from the support part 19 of the preset jig 8 to the set jig 16. The workpiece 17 is transferred to the support section 21 of. At this time, locate pins 23 provided at key points of the setting jig 16
(Fig. 4) fits into the locating hole on the workpiece 17 side,
Each part 17a to 17c is positioned. Further, the clamping device 22 is closed to fix the workpiece 17, and at the same time, the setting jig 16 is raised (FIG. 3).
In this state, preset jig 8 and set jig 1
There is no longer any interference between the carriage 4 and the carriage 6, and the carriage 4 is now ready to run.

When the traveling cart 4 moves toward the joining stage 2, the preset stage 1 becomes empty, and while the workpieces 17 on the setting jig 16 are being welded and joined on the joining stage 2, no workpieces are placed on the presetting jig 8. 17 can be placed.

Thereafter, the above-described cycle is repeated.

<Effect of the invention> As described above, according to the invention, even a member having an elongated shape parallel to the moving direction of the jig cart can be smoothly transferred between the set stage and the coupling stage. can. Therefore, productivity can be improved without complicating the equipment, and the effect is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a layout diagram of the main parts of the device of the present invention. Second
The figure is a side view of the device of the present invention. FIG. 3 is also a front view. FIG. 4 is also a plan view. 1... Preset stage, 2... Connection stage, 3... Guide rail, 4... Traveling trolley, 5...
... Traverse rail, 6 ... Traverse lift, 7 ... Lifter device, 7a ... X-shaped link, 7b ... Table, 8 ... Preset jig, 9 ... Clamp device, 10 ... Hydraulic motor, 11 ... ...guide bar,
12... Linear sliding actuator, 13... Table, 14... Locking device, 15... Locating pin, 16... Setting jig, 17... Work, 17
a~17c...part, 18...arm, 19...
Supporting part, 20... Arm, 21... Supporting part, 22
... Clamp device, 23 ... Locate pin.

Claims (1)

[Scope of claim for utility model registration] A preset stage for positioning the relative positions of a plurality of elemental parts constituting a vehicle body member;
A vehicle body member assembly and conveyance device comprising: a coupling stage for integrally coupling the positioned element parts; and a transfer device for transferring the element parts from the preset stage to the coupling stage, The device includes a first jig provided on the preset stage and a second jig provided on the transfer device, and the supporting portions of the element parts of both the first and second jigs are generally staggered. are provided on horizontal arm members formed in a comb-like shape so as to be adjacent to each other, and the arm members including the support portions provided on both the first and second jigs interfere with each other in the vertical direction. Lifting means is provided on at least one of the first and second jigs in order to vertically displace one of the jigs between a lower position and a higher position compared to the other when the jigs are not in use. A vehicle body member assembly and conveyance device characterized in that: