JPS626879A - Vehicle body assembly line for automobile - Google Patents

Abstract

PURPOSE:To establish a vehicle assembly means for a mixed several kind vehicle-model assembly line system, by providing a positioning device incorporating a body side circulating storage mechanism for rotatably and slidably supporting a support fixture having a body side locking section with more than two faces. CONSTITUTION:A vehicle body assembly line has a temporarily tapping station 2 and an additionally tapping station which are arranged in the mentioned order along a conveyer path for a tacked vehicle body 3, and is provided with a skid 11 for transferring a pretacked underbody 1 to the temporarily tapping station 2 and for delivering the tacked vehicle body 3 from this station to the additionally taping station. This skid 11 is driven by a drive device 5. In order to deliver a body side 6 to an assembling position on the temporarily tapping stations 2, there is provided a circulating storage mechanism 9 for rotatably and slidably supporting a support fixture 8. Further, the conveyer paths for the underbody 1 and the body side 6 are selectively changed in accordance with kinds of vehicle models.

Description

[Detailed Description of the Invention] The present invention relates to an automobile body assembly line,
More specifically, the present invention relates to a multi-car body assembly line that can be used not only to assemble car body models of the same type derived from a single car body model, but also to assemble car body models of other types.

The known automobile body assembly line is laid out in such a way that it can accommodate only a single body model and slightly different derivatives of that body model.

(As sales competition intensifies in the four-car market, in order to quickly respond to the diverse needs of consumers, only a single body model and similar body models derived from it are needed.) A car body assembly line that can be applied to a variety of vehicles is insufficient, and it is necessary to use a car body assembly line that can handle multiple car model mixed flow systems that can handle complete changes and partial changes in car body models such as full model changes. However, conventional car body assembly lines are configured only for Chinese car body models and their derivative models, and when there is a switch to the basic car body model due to a model change, etc., the car body assembly line is The layout itself had to be changed significantly.In other words, the number of car body models that can be used on a conventional car body assembly line is severely limited, and as a result, it is difficult to quickly respond to the diverse needs of consumers. It was extremely difficult to establish a production system that could do so.

The main object of the present invention is to provide a multi-model mixed-flow type automobile body assembly line that can be shared by a plurality of vehicle body models and can solve the above-mentioned problems observed in conventional body assembly lines. It is in.

In view of such an object, the present invention provides an automobile body assembly line in which a tacking station and an additional tacking station are sequentially arranged along a transfer route of the vehicle body. Attach the previous underbody (1) to the temporary taping station (2)
For tacking, move the car body (3) to the tacking station (
The driving device (5) for the skid (11) that sends out the skid (11) from 2) to the additional hitting station (4) and the body side (6) to the assembly position on the temporary hitting station (2),
A support (8) having body side locking parts (7) on two or more sides is rotatable in a plane (S) substantially perpendicular to the transfer direction (L) of the underbody (1), and the underbody (1) on the horizontal guide surface (H) that is substantially parallel to the transfer direction (L) of the underbody ('1).
An automobile comprising a positioning and sliding device (lO) which is also equipped with a circulation storage mechanism (9) of a body side (6) that is slidably supported in a direction (T) substantially orthogonal to L). The gist is a car body assembly line.

The underbody (2) mounted on the style skid (11)
) and the body side (6) locked on the support (8).
) by selectively changing the transfer route depending on the type of car body model, it is possible to introduce not only a single car body model and similar car body models derived from it, but also new car body assembly lines due to full model changes etc. It is possible to configure a multi-car body assembly line with high production efficiency even for completely different car body models and their derivative models.

FIG. 1 is a front view of a car body assembly line according to the present invention,
FIG. 2 is a side view thereof. As seen in these drawings, an automobile body assembly line is constructed by sequentially arranging a tacking station (2) and an additional tacking station (4) along the transport route of the car body (3). There is. The underbody (1) before tacking is carried to the tacking station (2) while being mounted on the skid (11), and at the tacking station, the body side (6),
Vehicle body components such as the cowl, roof, and rear shelf are temporarily welded, and the temporary welded parts are sent to an additional welding station (4) as a vehicle body (3). Here, the means for feeding the underbody (1) to the tacking station controller (2) and the means for tacking the vehicle body (3) to the additional tacking station (
4), the skid (11) is commonly used as a means for sending the vehicle to the car body assembly line, so the vehicle body assembly line is equipped with a skid drive device ( 5) is provided. On the other hand, the underbody (1) sent to the temporary welding station (2) has its relative position with the vehicle body components such as the body side (6), cowl, roof, and rear shelf prior to the start of temporary welding. Needs to be adjusted accurately. For this reason, temporary taping station (2)
The skid drive device (5) in the skid (11
) and a parallel link mechanism (16) that causes the skid conveyance roller (12) to move up and down by means of a positioning stopper (13) and an L-shape bar (15) that swings around a pivot (14) as the center of rotation. is attached.

The body side (6) is selected in advance by a management computer (not shown) connected to the body assembly line to match the type and model of the underbody (1) to be delivered to the temporary stamping station (2). It is sent out to a relative position on the tacking station (2) in a state in which it is taut. As a selective feeding means for the body side (6), a prismatic support (8) having two or more body side locking parts (7) is installed in the temporary setting station (2) to transfer the underbody (1). Rotatably supported around the pivot (17) in a plane (same plane as the paper surface S in FIG. 1) that is substantially orthogonal to the direction (indicated by arrows with reference symbols in FIG. 2) has been done. The support (8) also supports the support bracket (18) of the pivot (17) on a horizontal guide surface (H) substantially parallel to the transport direction (L) of the underbody (1).
) is supported so as to be slidable in a direction substantially perpendicular to the transport direction (L) of the underbody (1) (indicated by an arrow with reference symbol T in FIG. 1). By combining the rotational movement mechanism and the linear sliding movement mechanism, a positioning slide device (10) equipped with a body side (6) circulation storage mechanism (9) is provided on the left and right sides of the temporary punching station (2). is formed. In the illustrated embodiment, the four body side locking surfaces (7) of the square columnar support (8) have different types of body side (6).
) are installed on each side, and the skid (1
1) When a suitable body side (6) is selected by the management computer according to the model of the underbody (1) carried into the temporary stamping station (2) while being mounted on the underbody (1), the supporting tool ( 8) sends out the body side (6) to the assembly position U by using the rotational movement around the pivot (17) and the linear sliding movement of the support bracket (1B), and lowers the acid body side (6) under the Body (1)
to engage.

In addition, as shown in FIG. 1, the vehicle body assembly line according to the present invention includes a conveyor hanger device (]9) on the body side (6).
A hanger device (20) for transporting vehicle body components such as the roof, cowl, and rear shelf is provided so that the vehicle body components can be transported from a pool provided outside the system to the tacking station (2). It is composed of On the other hand, on both the left and right sides of the temporary welding station (2), a plurality of temporary welding robots (2L) are arranged according to a conventional method.

The tacking carried out from the tacking station (2) by activating the skid drive value R (5) is transferred to the car body (3) at the subsequent re-tapping station (4) in order to improve the assembly strength. Additional welding is performed.

As can be understood from the above explanation, the automobile body assembly line according to the present invention uses a management computer installed in the vehicle body assembly line to select an underbody from a plurality of vehicle body models. , the body side, the roof, the cowl, and other vehicle body components are supplied to the tacking station in a temporally and positionally synchronized state. Therefore, according to the present invention, it is possible to establish a means for assembling a vehicle body in a multi-vehicle type mixed flow system, which has been thought to be impossible until now.

The vehicle body assembly line according to the present invention is configured to selectively supply a specific body side corresponding to the type of underbody to an assembly position on a tacking station using a dedicated support provided in advance in a pool. Therefore, the idle time before and after the temporary hammering process is reduced, and the flexibility of the vehicle body component conveyance means and the additional hammering process can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a front view of a vehicle body assembly rack f according to the present invention, and FIG. 2 is a side view thereof. (1") - Underbody, (2) - Temporary fixing station, (3L - Temporary fixing is done on the vehicle body, (4) - Additional stamping station, (5) - Skid drive device, (6) - Body side , (7)--Body side locking part, (8)
- Support, (9) - Circulating storage O1 structure on the body side,
(10) - Positioning and sliding device.

Claims (1)

[Claims] (1) An automobile body assembly line in which a tacking station and an additional tacking station are sequentially arranged along the transfer route for tacking car bodies, in which the underbody before tacking is sent to the tacking station, and tacking is done. A skid drive device that sends the car body from the tacking station to the re-tapping station, and a support device that has body side locking parts on two or more sides in order to send the body side to the assembly position on the tacking station are installed in the underbody transfer direction. circulation of the body side supported to be rotatable in a plane substantially perpendicular to the underbody, and slidable in a direction substantially perpendicular to the underbody transport direction on a horizontal guide surface substantially parallel to the underbody transport direction; An automobile body assembly line comprising a positioning and sliding device with a storage mechanism.