JP2562703Y2 - Vehicle suspension assembly device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension assembling device for a vehicle.

[0002]

2. Description of the Related Art As one of the methods for assembling a lower part including a suspension device from a lower side of a vehicle body, for example, a vehicle is mounted on a pallet as disclosed in JP-A-1-22339. There is known a method of assembling the lower part on the vehicle body side by covering the lower part with the vehicle body from above.

[0003] In this case, if the suspension device is of a strut type in particular, it is necessary to hold the strut in an upright state and to assemble it in the suspension tower of the vehicle body. Conventionally, a clamp head for clamping and holding the strut is generally provided.

On the other hand, when the lower part is placed on the pallet, the suspension device is in a free state in the vertical direction. Therefore, it is necessary to provide a support device for appropriately supporting and holding the suspension device. Along with
Further, in this support device, mounting bolts to the ceiling surface of the suspension tower are arranged at the upper end of the strut so as to protrude upward, and the mounting bolts are attached to the suspension tower side when assembling the vehicle body. Since the amount by which the strut is pushed down by the vehicle body differs depending on whether or not the strut is accurately positioned with respect to the provided bolt insertion hole, a mechanism capable of coping with such a change in the strut pushing amount is provided. Is required. For this reason, for example, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Application Laid-Open Publication No. H11-260, it has been proposed to provide an air cylinder disposed on the pallet side in a state of being constantly urged upward, and to constitute the above-described support device.

[0005]

However, since the clamp head in the conventional suspension assembling apparatus is usually configured to have only a function of simply clamping the strut, for example, the assembly of a vehicle body is performed. If the strut is pushed down due to the weight of the vehicle body during the attaching work, an excessive load is input to the clamp head, and particularly when the clamping force is strong, the clamp head or the strut is deformed, and the clamping force is reduced. If it was weak, slippage could occur between the two cars, causing damage to them.

Therefore, the present invention is to prevent the deformation and damage from occurring by configuring the clamp head so as to integrally follow the displacement of the strut, and also to prevent the occurrence of damage during unclamping. The present invention has been made to provide a vehicle suspension assembling apparatus capable of simultaneously preventing the above.

[0007]

According to the present invention, as a specific means for solving the above-mentioned problem, a vehicle body is put on a lower part including a suspension device having struts mounted on a pallet from above. In the suspension assembling device for a vehicle, wherein the suspension device is assembled in a suspension tower of the vehicle body, a suspension support device for elastically supporting the suspension device is disposed on the pallet, while a suspension support device is provided on a side of the pallet. A clamp head having a clamper for clamping the strut of the suspension device in an upright state, a balance cylinder for supporting the clamp head in a state where the clamp head is constantly urged upward; and Brakes for locking in position Is characterized in that a suspension assembly jig and a device.

[0008]

According to the present invention, the following effects can be obtained by adopting such a configuration. That is, the suspension device mounted on the pallet is held in a state of being elastically supported by the suspension support device arranged on the pallet side.

The strut of this suspension device is
It is clamped and held upright by a clamp head of a suspension assembling jig arranged on the side of the pallet. In this case, the clamper is in a state of being lifted upward by the balance cylinder, and the brake device is in an open state.

In this state, the vehicle body located above the pallet descends so as to cover the lower part from above, and the lower part is assembled from the lower surface side of the vehicle body 31. That is, the strut of the suspension device is inserted into the suspension tower on the vehicle body side from below and assembled there. In addition, the vehicle body is supported by an appropriate vehicle body receiving device at a position where the upper end of the strut abuts on the ceiling surface of the suspension tower, and the descent is stopped.

In this case, when the mounting bolt provided at the upper end of the strut is inserted into the bolt insertion hole on the suspension tower side (ie, when the strut is properly positioned), the strut of the vehicle body 31 Although the amount of pushing down is small, if this positioning is inappropriate and the mounting bolt is in contact with the ceiling surface of the suspension tower and stretches, the strut is pushed down by the length of the mounting bolt. Become. Then, such depression of the strut is permitted by a suspension supporting device that supports the strut.

When the strut is pushed down in accordance with the lowering operation of the vehicle body, the clamp head that clamps the strut is pushed down integrally with the strut while compressing the balance cylinder that supports the strut. Therefore, the clamp head is not subjected to excessive force, and there is no slip between the clamp head and the strut as when the clamp head is fixedly arranged. Deformation or damage of the head or strut is reliably prevented.

On the other hand, when the vehicle body descends to a certain position, its downward movement is stopped, and accordingly, the strut also stops. At this lowermost position of the vehicle body, the brake device operates to hold the balance cylinder at that position. In this state, the clamp head is unclamped to release the suspension assembly jig from the vehicle body.
In this case, since the balance cylinder is held by the brake device, the balance cylinder does not extend at the same time as the clamp head is unclamped, and the clamp head does not collide with the strut and damage the strut. The unclamping operation of the clamp head is also performed smoothly and reliably.

[0014]

Therefore, according to the suspension assembling device for a vehicle of the present invention, the clamp head supporting the strut can be moved in accordance with the movement of the strut when the suspension device is assembled to the vehicle body. As a result, it is possible to reliably prevent an excessive force from being applied to the suspension mounting jig or to cause slippage, thereby preventing deformation or damage of the suspension mounting jig or the strut. Thus, the assembling work can be surely performed, and the effect of contributing to the improvement of the durability of the suspension assembling apparatus can be obtained.

Further, since the balance cylinder supporting the clamp head is locked as it is at the lowest position of the vehicle body by the brake device,
It is possible to prevent damage to struts and the like due to careless extension of the balance cylinder, and to further enhance the protection of struts and the like by using a movable clamp head. The effect is also obtained.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a suspension assembling apparatus for a vehicle according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings. FIG. 1A shows a suspension assembling apparatus for a vehicle according to an embodiment of the present invention. Have been. This suspension assembling apparatus includes, in addition to the engine 33 and the fuel tank 34, the respective axle devices 39, 39,... For the front and rear wheels, and the respective suspension devices arranged corresponding to the respective axle devices 39, 39,. The lower parts of the pallet 20, which are successively tact-conveyed, are positioned on the lower parts of the vehicle 40, 40,... It is for assembling from the side. In particular,
The vehicle body 31 is attached to a lower part placed on the pallet 20 so as to be lowered from above and cover the lower part. The two are not combined and fastened and fixed, but only the work of positioning and combining them in a predetermined state is performed, and the positioning correction and the final fastening work are performed in a subsequent fastening process).

In this case, the problem is that the strut 41 of the suspension device 40 is accurately fitted and assembled to a suspension tower (not shown) on the vehicle body 31 side. That is, although the suspension device 40 is arranged corresponding to the axle device 39, the suspension device 40 is free in the vertical direction before being assembled to the vehicle body, and the strut 41 of the suspension device 40 is also tilted in the falling direction. Is in a free state. For this reason, when assembling, it is necessary to support and position the suspension device 40 together with the axle device 39 from below, and to hold the strut 41 at a predetermined standing position. Further, the strut 41
Receives a force that is pushed downward during assembly on the vehicle body side, so it is necessary to allow the downward movement.

Under such circumstances, first, as shown in FIGS. 1A and 2, four sets of suspension support devices 50 each including an air cylinder 51 and a guide rod 52 are arranged on the pallet 20 side. Each of the suspension support devices 50 supports the axle arm 45 of the axle device 39 from below, and when a force of a certain value or more is applied, the air cylinder 51 can reduce its downward movement by reducing the displacement. Like that.
FIG. 1B shows the axle device 39 and the suspension device 4 in a free state by the suspension support device 50.
0 is shown, and in this case, the air cylinder 51 is in an extended state. On the other hand, FIG. 2 shows a state in which the axle device 39 and the suspension device 40 are pushed down with the downward movement of the vehicle body 31, and in this case, the air cylinder 51 is in a state of being appropriately reduced. .

Second, in order to hold the strut 41 of the suspension device 40 in an upright state, suspension assembling jigs Z, Z,. Has been arranged.
In particular, in this embodiment, by applying the present invention, the suspension assembling jig Z not only supports the strut 41 but also supports the strut 41.
To be able to move following the downward displacement. Hereinafter, the structure and operation of the suspension assembly jig Z will be described with reference to FIGS. 1A to 3.

Incidentally, the suspension device 40 is shown in FIG.
As shown in FIG. 2B and FIG. 2, a suspension head 43 having a strut 41 of a predetermined length and a suspension spring 42, and having a suspension head 43 positioned and abutted on a ceiling surface of a suspension tower on the vehicle body 31 side is provided at an upper end thereof. And a plurality of mounting bolts 44 are arranged. In the suspension device 40, the lower end of the strut 41 is fixed to the axle device 39 side.

FIG. 1A shows the suspension assembly jig Z.
As shown in the figure, a predetermined height is set with respect to the base 1 arranged on the side of the traveling rail 21 of the pallet 20 and movable in the front-rear and left-right directions (the directions of arrows AB and CD). And a clamp head X is attached to the upper part of the support 2 via a support height adjusting means 3 so as to be movable in the vertical direction (the direction of arrow EF).

The clamp head X has a support bracket 4 connected to the support height adjusting means 3. As shown in FIGS. 1B to 3, a balance cylinder 5 constantly urged in the extending direction is fixed to the support bracket 4 with its rod 5 a facing upward. An arm member 8 is fixed to the distal end so as to extend in the horizontal direction. The arm member 8 is always positioned at the ascending position by the balance cylinder 5, and forcibly reduces the balance cylinder 5 against the urging force when a downward force is applied from the vehicle body 31 side. It can be descended at.
The vertical movement of the arm member 8 in this case is guided by a guide rod 6 arranged in parallel with the balance cylinder 5.

Further, the arm member 8 includes a pair of right and left clamp claws 11, 11, and a clamper 10 which is selectively clamped or unclamped by the expansion and contraction operation of the clamp air cylinder 9 substantially opens and closes. It is arranged to extend forward in a state set in the horizontal direction. The clamper 10 is provided with the strut 4
1 is clamped from its side.

On the other hand, the balance cylinder 5 is provided with a brake device 7. This brake device 7
This is a brake device capable of pinching and holding or releasing the rod 5a of the balance cylinder 5 by introducing and discharging air pressure. The structure of the brake device is publicly known, and a description thereof will be omitted. The operation of the brake device 7 is controlled in accordance with the lowered position of the vehicle body 31. Specifically, the brake device 7 is always opened,
When 1 reaches its lowermost position, this is detected and fastening operation is performed to hold the balance cylinder 5 at the telescopic position at that time. The release from the fastening operation state is performed, for example, when the base 1 retreats in the direction of arrow B.

Next, the operation of assembling the lower part to the vehicle body 31 using the suspension assembling apparatus of the vehicle equipped with the suspension assembling jigs Z, Z,.

First, each suspension assembly jig Z
1B, as shown in FIG. 1B, the brake device 7 is released, the balance cylinder 5 is fully extended, and the clamper 10 is lifted to the highest position, and waits rearward.

On the other hand, the pallet 20 on which the lower parts are positioned and mounted and the vehicle body 31 suspended and supported by the vehicle hanger device 30 are respectively conveyed to predetermined positions on the respective suspension mounting jigs Z, Z,. And it is stopped temporarily here. In this state, the suspension support devices 50, 50,... Of the pallet 20 support the axle devices 39 and the suspension devices 40, respectively, in an extended state (see FIG. 1B).

When the pallet 20 stops, each of the suspension mounting jigs Z, Z,.
Then, the intermediate position of the strut 41 of the suspension device 40 is clamped by the clamper 10 (the state shown in FIG. 1B). In this case, the balance cylinder 5
Is fully extended, the vertical position adjustment between the clamper 10 and the strut 41 is performed by the support height adjusting means 3 provided on the column 2 side, and the horizontal position adjustment is performed as described above. The adjustment is performed by adjusting the movement of the base 1 in the direction of the arrow CD.

When the struts 41 of each suspension device 40 are clamped in a predetermined standing state by the clampers 10 of the suspension assembly jigs Z, Z,... The device 30 is lowered, and the lower body part is assembled to the lower body part in a manner of covering the lower body part with the lower body part. In this case, each of the struts 41, 41,.
Each is inserted into the corresponding suspension tower (not shown) of the vehicle body 31 from below, and the upper end thereof is brought into contact with the ceiling surface of the suspension tower.

In this case, as long as the height position when the upper end of the strut 41 contacts the ceiling surface of the suspension tower does not coincide with the lowest position of the vehicle body 31, the strut 41 is Due to the weight on the side, the air cylinder 51 descends while compressing it.
In addition, the descending amount of the strut 41 is small when the mounting bolt 44 provided on the suspension head 43 is inserted into the bolt insertion hole on the suspension tower side, and is large when the mounting bolt 44 is not inserted. In any case, the strut 41 is still pressed down.

As described above, when the strut 41 is pushed down, the clamper 10 which clamps the intermediate position of the strut 41 receives the lower power of the strut 41 and pushes down the balance cylinder 5 while compressing and lowering the balance cylinder 5 integrally therewith. I do. Therefore, no excessive force is applied to the clamper 10 irrespective of the lowering of the strut 41, and no slippage occurs between the clamper 10 and the strut 41. Therefore, deformation or damage of the clamper 10 or the strut 41 is prevented beforehand and surely.

When the vehicle body 31 reaches the preset lowest descent position, further lowering of the vehicle body 31 is stopped (specifically, the vehicle body 31 is supported by a vehicle body receiving member provided on the pallet 20 side). ), The brake device 7 is actuated in response to the vehicle body 31 reaching the lowest position, and locks and holds the balance cylinder 5 at the current telescopic position.

The balance cylinder 5 is operated by the brake device 7.
Is locked, the clamper 10 is unclamped, and the clamper 10 is released from the strut 41 side. In this state, the base 1 is retracted rearward, and the brake device 7 is released at the retracted position, and the clamper 10 is moved by the balance cylinder 5.
To the up position again to prepare for the next suspension assembly work.

In this case, in this embodiment,
When the vehicle body 31 reaches the lowermost position, the balance cylinder 5 is locked by the brake device 7 and the clamper 10 is unclamped after that. For example, the clamper 10 is not locked while the balance cylinder 5 is not locked. When the clamp cylinder is unclamped, the balance cylinder 5 suddenly expands at the same time as the unclamping, so that the clamper 10 collides with the suspension spring 42 above the strut 41 and damages the suspension spring 42. Is prevented.

As a synergistic effect between the locking operation of the balance cylinder 5 by the brake device 7 and the lowering operation of the clamper 10 due to the expansion and contraction of the balance cylinder 5 as described above, the clamper 10 and, consequently, the suspension assembling jig. Prevention of deformation and damage of the tool Z or the strut 41 can be further ensured.

The vehicle body 31 in which the lower parts have been assembled
Is transported to the next fastening step while being placed on the pallet 20, where it is integrally fastened and fixed. Above,
Suspension assembly work is completed.

[Brief description of the drawings]

FIG. 1A is a perspective view of a main part of an assembly line of a vehicle including a suspension assembly device according to an embodiment of the present invention.

FIG. 1B is a side view of a main part of the suspension assembling apparatus shown in FIG. 1A.

FIG. 2 is a state change diagram of FIG. 1B.

FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2;

[Explanation of symbols]

1 is a base, 2 is a column, 3 is a support height adjusting means, 4 is a support bracket, 5 is a balance cylinder, 6 is a guide rod, 7 is a brake device, 8 is an arm member, 9 is a clamp air cylinder, 10 Is a clamper, 11 is a clamp claw, 20 is a pallet, 21 is a running rail, 30 is a vehicle hanger device, 31 is a vehicle body, 33 is an engine, 34 is a fuel tank, 39 is an axle device, 40 is a hanger, 41 is a strut, 42 Is a suspension spring, 43 is a suspension head, 44 is a mounting bolt, 45 is an axle arm, 50 is a suspension support device, 51 is an air cylinder, 52 is a guide rod, and 53 is a support.

Continuation of the front page (72) Inventor Yoshitomi Inagaki 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (56) References JP-A 1-229783 (JP, A)

Claims (1)

(57) [Scope of request for utility model registration] 1. A suspension for a vehicle in which a vehicle body is mounted on a lower part including a suspension apparatus having struts mounted on a pallet from above, and the suspension apparatus is assembled in a suspension tower of the vehicle body. An assembling device, wherein a suspension support device that elastically supports the suspension device is disposed on the pallet, and a clamper that clamps a strut of the suspension device in an upright state is provided on a side of the pallet. A suspension assembly comprising a clamp head, a balance cylinder that constantly supports the clamp head in an upwardly biased state, and a brake device that can lock the operation of the balance cylinder at the lowest position of the vehicle body A vehicle characterized by disposing a jig Suspension assembly equipment.