JP2000053044A - Vehicle body front component assembly equipment - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] To assemble a front component in a single station. SOLUTION: A set jig 1 is provided with support means for a front side frame W1, support means for a front wheel house, support means for a bulkhead, and support means for a dashboard lower W4. The support means can be switched between a predetermined assembly position and a position in which the support means has fallen forward by the movement of the frame 131, and the support means can be similarly switched by the movement of the frame. When performing the work setting work, the support means is switched to the set position, the bulkhead and the dashboard lower W4 are set, and when the set jig is moved forward, the support means is set at the set position and the front side frame and the front wheel house are moved. Next, the bulkhead and the dashboard lower are welded to the front side member at the mounting position of the support means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling front left and right front side members by welding and connecting front left and right front side frames and left and right front wheel houses. The present invention relates to a front component assembling apparatus for assembling a front component of a vehicle body by welding and connecting a bulkhead and a dashboard lower to a part and a rear end, respectively.

[0002]

2. Description of the Related Art Conventionally, as this kind of assembling apparatus, a set station and a set station are disclosed in Japanese Patent Publication No. 7-14553.
A first assembly station in which welding robots are arranged on both left and right sides, a second assembly station in which welding jigs and a pair of front and rear assembly jigs for a bulkhead and a dashboard are arranged, a set station, and a first station. A set jig that can reciprocate with the assembling station; and a ceiling-hanging transfer means that can reciprocate with the first and second assembling stations. After setting the frame and the front wheel house, the set jig is moved to the first assembly station, and the welding side connects the front side frame and the front wheel house by welding.
The left and right front side members thus assembled are conveyed to the second assembling station by the conveying means, set on the welding jig, and both the bulkhead and the dashboard lower set on the front and rear mounting jigs in advance. The front and rear ends of the left and right front side members are joined by the movement of the attachment jig, and the bulkhead and dashboard lower are welded to the left and right front side members by the welding gun on the welding jig. It is known to assemble front components.

[0003]

In the above-mentioned prior art, a large space is required due to the arrangement of the first and second assembling stations, and the front side member assembled at the first assembling station is required. Means for transporting the product to the second assembling station is required, which increases equipment costs. Further, when changing the model, it is necessary to exchange a set jig, a welding jig, and an assembling jig. There is a problem that the setup work at the time of change takes time.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a front component assembling apparatus which is space-saving, has low equipment costs, does not require much time for setup work when changing models, and has excellent productivity. That is the task.

[0005]

Means for Solving the Problems In order to solve the above problems,
According to the present invention, the left and right front side frames and the left and right front wheel houses are welded and joined to assemble the left and right front side members, and the front and rear end portions of the left and right front side members are formed. In a device for assembling a front component of a vehicle body by welding and connecting a bulkhead and a dashboard lower, respectively, the apparatus is reciprocated between a set station, an assembly station in which welding robots are arranged on both right and left sides, and a set station and an assembly station. The set jig is provided with a pair of left and right side frame support means for positioning and supporting the left and right front side frames, and the left and right front wheel houses on each front side frame. Left, which is positioned and supported so that the wheel houses are joined A pair of wheel house supporting means, an assembling position where the bulkhead is positioned and supported from the front side, and the bulkhead is joined to the front ends of the front side members on the left and right sides, and in front of the assembling position. Bulkhead support means movable to the set-down position, assembling for positioning and supporting the dashboard lower from the front side, and joining the dashboard lower to the rear ends of the left and right front side members Position, and a dashboard supporting means movable to a set position above and behind the assembling position. When the set jig is moved back to the set station, the bulkhead supporting means and the dashboard supporting means are provided. Are switched to the set positions, respectively, and the support means for each side frame, the support means for each wheel house, the support means for the bulkhead, and the dashboard The front side frames on the left and right sides, the front wheel houses on the left and right sides, the bulkhead, and the dashboard lower can be set freely on the support means for the arm and the bulkhead when the set jig is moved to the assembly station. While holding the support means for the dashboard and the support means for the dashboard at the respective set positions, the front side frames on the left and right sides and the front wheel houses on the left and right sides are welded together by a welding robot, and the front side members on the left and right sides. And then
The support means for the bulkhead and the support means for the dashboard are respectively switched to the assembling positions, and the bulkhead and the dashboard lower are welded to the front end and the rear end of the front side members on the left and right sides by a welding robot. To assemble the front components.

By holding the support means for the bulkhead and the support means for the dashboard at the set position, the bulkhead and the dashboard lower are separated from the front and rear of the front side frame and the front wheel house, and The welding robot can also access the joints near the front end and the rear end of the frame and the front wheel house without being disturbed by the bulkhead and the dashboard lower, and can weld these joints. Thus, even if the bulkhead and the dashboard lower are set on the set jig in addition to the front side frame and the front wheel house, there is no problem in assembling the front side member.

As a result, the assembly of the front side members and the assembly of the front components can be performed in a single assembly station, so that space can be saved.
The transport means for the front side member is not required, and the equipment cost is reduced. Further, when changing the model, it is only necessary to replace the set jig, so that the setup work at the time of changing the model is not troublesome.

Further, since the support means for the bulkhead is in the lying posture at the set position, the bulkhead is supported by the support means for the bulkhead at the set position in the open space in front of the front side frame and the front wheel house. It can be set from above without causing interference with these front side frames and the like. In addition, since the dashboard support means is for positioning and supporting the dashboard lower from the front side, the dashboard lower means is provided with the dashboard lower at the set position behind the front side frame and the front wheel house. Can be set from behind without causing interference with these front side frames and the like in the open space. Thus, the work of setting the bulkhead and the dashboard lower is also facilitated.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an apparatus for assembling a front component W of a vehicle body shown in FIG. 12 will be described below. The front component W is composed of a pair of left and right front side frames W1, a pair of left and right front wheel houses W2, a front bulkhead 3, and a rear dashboard lower 4. In the illustrated embodiment, a cross member W5 is provided which is connected to the laterally inwardly projecting portions of the rear ends of the left and right front side frames W1 and W1 so as to increase the rigidity of the front component W.

[0010] The assembling apparatus for the front component W is as follows.
As shown in FIGS. 1 and 2, the set station ST1
And an assembly station ST2 in front of the set station ST1 and the assembly station ST.
2 is provided with a temporary setting set jig 1 which can reciprocate, and a reciprocating additional set jig 2 which is reciprocally movable at an assembly station ST2 and a standby place ST3 in front of the assembly station ST2. A plurality of components constituting the front component W, that is,
Cross member W5 and left and right front side frames W
1, W1 and left and right front wheel houses W2, W2
, The bulkhead W3, and the dashboard lower W4, and then, the tacking set jig 1 is set as shown in FIG.
As shown in the figure, the front component W is moved to the assembly station ST2, and a plurality of components on the temporary setting jig 1 are tack-welded by the welding robots 3 arranged on the right and left sides of the assembly station ST2. Then, the front component W is lifted from the temporary setting jig 1 by the transfer machine 5 mounted on the stand 4 on the standby place ST3, and in this state, the temporary setting jig 1 is moved to the set station ST1. While moving, the additional jig 2 is moved from the standby location ST3 to the assembly station S.
Moving to T2, the additional component set jig 2, as shown in FIG. 2B, the front component W is transferred by the transfer machine 5, and in this state, the front component W is further driven by the welding robot 3. Welding is performed, and finally the front component W is lifted up from the additional jig 2 by the transfer machine 5 and paid out to the next step, thereby completing one assembly cycle of the front component W.

The additional setting jig 2 is mounted on a guide rail 6 laid between the set station ST1 and the standby station ST3, and is reciprocated by the cylinder 7 between the assembly station ST2 and the standby station ST3. . On the other hand, the setting jig 1 for tacking is fixed on a carriage 8 mounted on the guide rail 6 by a clamp device 8a, and a pinion on an output shaft meshing with a rack 6a juxtaposed to the guide rail 6 is provided. (Not shown) is mounted on the carriage 8, and the carriage 8 reciprocates the temporary setting jig 1 between the set station ST1 and the assembly station ST2. The set jig 1 for tacking is wider than the cart 8 and has wheels 1 on both left and right sides thereof.
a is attached. And set station S
At T1, the wheel 1a is positioned outside the guide rail 6.
Is provided with a lifting rail 9 which is raised and lowered by a cylinder 9a, and a rearwardly extending replacement rail 10 which is aligned with the lifting position is provided on the lifting rail 9 to provide a clamping device 8a.
By raising the elevating cylinder 9 while unclamping the, the temporary setting jig 1 is pushed up from the carriage 8, and the temporary mounting set jig 1 can be exchanged for another model via the exchange rail 10. Like that.

FIGS. 3 to 6 show the temporary setting jig 1.
As shown in the left and right front side frames W1, W1
Left and right front wheel houses W, a pair of left and right side frame support means 11 for positioning and supporting
2, a pair of left and right wheel house support means 12, 12 for positioning and supporting W2, a bulkhead support means 13 for positioning and supporting the bulkhead W3, and a dashboard lower W4 for positioning and supporting. A dashboard supporting means 14 and a cross member supporting means 15 for positioning and supporting the cross member W5 are provided.

The side frame support means 11 comprises two front and rear positioning pins 110, 111 which are fitted into the front end side hole W1a and the rear end side hole W1b of the bottom wall of the front side frame W1 from below. Front side frame W1
, A work receiver 113 for receiving a laterally outwardly extending portion of the rear end of the front side frame W1, and a clamp for clamping the front side frame W1 from above in the vicinity of the positioning pin 110. It comprises a member 114 and a clamp member 115 for clamping the rear flange of the overhanging portion from above to the work receiver 113.

The wheel house support means 12 comprises two front and rear positioning pins 120, 121 which are fitted into the front end side hole W2a and the rear end side hole W2b of the side wall portion of the front wheel house W2 from the inside in the lateral direction. A positioning pin 122 fitted from below into a damper mounting hole W2c on the rear upper surface of the front wheel house W2; and a pair of clamp members 123, 123 for clamping two front and rear portions of an upper edge of a side wall portion of the front wheel house W2. And supports the front wheel house W2 so as to be joined to the front side frame W1 supported by the side frame support means 11 in a required positional relationship. Clamp members 123, 12
3 is attached to the upper end of a swing frame 124 that can be tilted inward in the horizontal direction with the lower end shaft 124b as a fulcrum by a cylinder 124a, as shown in FIGS.
The positioning pin 120 is attached to the cylinder 12
It is mounted so as to be able to advance and retreat laterally outward through the line 0a. In addition, the positioning pins 122 are provided on the support columns 1 erected on the jig body.
The two cylinders 122 are attached to the upper end of a piston rod of a cylinder 122d attached to an elevating frame 122c supported by the cylinder 122b so as to be able to move up and down.
A large stroke up / down movement is provided at b and 122d. The positioning pin 122 is provided with a phase determining pin 122e that fits into one of the bolt insertion holes W2d around the damper mounting hole W2c. The positioning pin 121 is attached to the support column 122a via the cylinder 121a so as to be able to advance and retreat laterally outward.

The bulkhead supporting means 13 includes an assembling position for joining the bulkhead W3 to the front ends of the left and right front side members assembled by welding the front side frame W1 and the front wheel house W2. It is movably provided in a set position in which it falls down in front of the attachment position. In the present embodiment, the cylinder 130a
On the slide frame 130 moved back and forth along the guide bar 130b by the
A swing frame 131 that is raised and lowered with the fulcrum 1b as a fulcrum,
Various support members for positioning and supporting the bulkhead W3 from the front side are attached to the swing frame 131 to constitute the bulkhead support means 13, and the swing frame 131 is raised to move the slide frame 130 backward. The bulkhead supporting means 13 is switched to the assembling position by moving, and the slide frame 130 is moved forward from this assembling position to cause the swing frame 131 to fall forward, thereby allowing the bulkhead supporting means 1 to fall.
3 is switched to the set position.

On the swing frame 131, as the support member,
Holes W3a, W3 at both left and right ends of the front surface of bulkhead W3
a pair of left and right positioning pins 132, 132
A pair of left and right work holders 133 and 133 for pressing the left and right ends of the upper frame W3b of the bulkhead W3, and a pair of left and right work guides engaged with the inner edges of the left and right vertical frames W3c and W3c of the bulkhead W3. 134, 134, a work receiver 135 for receiving the lower frame W3d of the bulkhead W3, and two left and right workpiece receivers 1 for the lower frame W3d of the bulkhead W3.
35 and a pair of right and left clamp members 13 to be clamped between
6,136 are provided. Each work clamp 133
The cylinder is positioned between an operating position where the upper frame W3b is pressed (a lower position with the swing frame 131 standing) and a retracted position where the upper frame W3b is released (the upper position with the swing frame 131 standing). A switching operation is performed at 133a, and a positioning pin 133b that fits into a hole W3e near the end of the upper frame W3b is vertically provided on each work holder 133. Further, the work receiver 135 is also provided with an operating position for supporting the lower frame 3d at a fixed position (an upper position with the swing frame 131 standing up) and a retracted position for separating from the lower frame 3d (the swing frame 1).
31 with the cylinder 31 upright).
The switching operation is performed at a.

The dashboard support means 14 is movably provided at an assembling position where the dashboard lower W4 is joined to the rear ends of the left and right front side members, and at a setting position above and behind the assembling position. ing. In the present embodiment, as shown in FIG. 9, a main slide frame 140 is provided which is advanced and retracted obliquely forward and downward and obliquely rearward and upward along a guide bar 140b which is inclined upward and backward by a cylinder 140a.
On the slide frame 140, a swing frame 14 that can be tilted forward with a shaft 141b at the lower end as a fulcrum by a cylinder 141a.
And a cylinder 142 on the swing frame 141.
a sub-slide frame 142 which is moved back and forth along the guide bar 142b by a, and various support members for positioning and supporting the dashboard lower W4 from the front side are attached to the main slide frame 140 and the sub-slide frame 142, and The board support means 14 is constituted. And
The swing frame 141 is raised and the sub-slide frame 14
By moving the main slide frame 140 forward and downward with the second slide position 2 as the rear position, the dashboard support means 14 is switched to the assembly position.
The dashboard support means 14 is switched to the set position by moving the rearward and upward movement of the sub-slide frame 142 from the assembly position, and the swing frame 1 is moved.
By inclining the front 41, the dashboard support means 14 is switched to a retracted position separated from the dashboard lower W4.

The main slide frame 140 is provided with a work receiver 143 for receiving the center of the lower edge of the dashboard lower W4 as the support member, and the sub slide frame 142 is provided with a dash support as the support member. Left and right 2 that fit into left and right holes W4a, W4b of board lower W4
Positioning pins 144 and 145, and a clamp member 146 for clamping the center of the upper edge of the dashboard lower W4.
Are provided.

The cross member support means 15 includes a pair of left and right positioning pins 150, 150 fitted into two left and right holes W5a, W5a in the bottom wall of the cross member W5, and two left and right positions of the cross member 5. Left and right 1 to clamp from above
It is composed of a pair of clamp members 151 and 151.

The tacking set jig 1 further includes a dashboard restraint for restraining the lower edge of the dashboard lower W4 in a state where the dashboard lower W4 is joined to the rear ends of the left and right front side members. Means 16 are provided. The restraining means 16 includes a dashboard lower W4.
Left and right front side frames W
1, a pair of right and left clamp members 16 to be clamped on W1
0, 160, and the center of the lower edge of the dashboard lower W4 is pushed forward by the cylinder 161a.
and a work presser 161 that moves forward and backward along the line b.

The positioning pins other than the positioning pins 110 of the supporting means 11 for the side frame and the positioning pins 150 of the supporting means 15 for the cross member among the positioning pins are clamping claws for clamping the edge of each hole. It is configured with

In the work setting work at the set station ST1, first, the cross member W5 is placed on the cross member supporting means 15 by the positioning pins 150, 150.
After positioning and setting, the clamp members 151, 1
51, the cross member W5 is clamped, and then the front side frame W1 is mounted on the side frame support means 11 on each of the left and right sides with the positioning pins 110, 111 and the work receiver 1.
After positioning and setting with the positions 12 and 113, the front side frame W1 is clamped by the clamp members 114 and 115. Next, the swing frame 124 of the wheel house support means 120 is raised, and the positioning pins 12
0, 121 is advanced laterally outward, the front wheel house W2 is positioned by the positioning pins 120, 121 and set on the front side frame W1, and then the positioning pins 122 are moved upward to the damper mounting holes W2c. The front wheel house W2 is clamped by the clamp members 123, 123 in this state. Also,
The bulkhead W3 is positioned and set on the bulkhead supporting means 13 at the set position by the positioning pins 132, 132, the work guides 134, 134 and the work receiver 135 previously switched to the operating position, and then the clamp member 136 is set. , 136, the lower frame W3d of the bulkhead W3 is clamped, the work holders 133, 133 are switched to the operating position, and the upper frame W3b of the bulkhead W3 is inserted into the hole 3We.
Is pressed while the positioning pin 133b is fitted to it. Furthermore, the dashboard support means 14 located at the set position
The dashboard lower W4 is positioned and set by the work receiver 143 and the positioning pins 144 and 145, and the dashboard lower W4 is clamped by the clamp member 146. Here, in the open space in front of the front side frame W1 and the front wheel house W2, the bulkhead W3 is supported from above by the bulkhead supporting means 13 held in the set position in an upright position. It can be set without causing interference with the wheel house W2, and the dashboard lower W4 is attached to the front side frame W1.
And in the open space behind the front wheel house W2, the dashboard support means 14 held in the rearward posture standing upright at the set position receives the front side frame W1 and the front wheel house W2 from behind.
Can be set without causing interference with the bulkhead W3 and the dashboard lower W4 can be easily set.

When the work setting work is completed and the setting jig 1 for temporary attachment is moved to the assembly station ST2,
First, the front side frame W1 on each of the left and right sides and the front wheel house W2 on each of the left and right sides are set by the welding robot 3.
And the front side members on the left and right sides are assembled by welding. At this time, the support means 13 and 14 for the bulkhead and the dashboard are held at the respective set positions, and the welding robot 3 is connected to the front side frame W1 without being disturbed by the bulkhead W3 and the dashboard lower W4. The access point to the front wheel house W2 can be accessed.

When the assembly of the front side member is completed, the support means 1 for the bulkhead and the dashboard is provided.
3 and 14 are switched to the respective assembling positions, and the bulkhead W3 and the dashboard lower W4 are joined to the front end and the rear end of the left and right front side members, respectively.
By the operation of the dashboard restraining means 16, the lower edge of the dashboard lower W4 is restrained. In this state, the welding robot 3 uses the bulkhead W3 and the dashboard lower W4.
Are temporarily attached and welded to the left and right front side members to assemble the front component W.

When the tack welding is completed, the front component W is lifted from the tacking set jig 1 by the transfer machine 5 as described above, and transferred to the additional set jig 2.
The additional welding of the front component W is performed.

The transfer machine 5 is composed of a robot having a gripping means 50 for gripping the front component W attached to an operation end. As shown in FIGS. 10 and 11, the holding means 50 is provided with the hole W3e of the upper frame W3b of the bulkhead W3.
The pair of left and right positioning pins 51, 51 fitted into the inner hole W3f from above and the upper frame W3b do not interfere with the work holder 133 of the bulkhead supporting means 13 provided on the temporary setting jig 1. A pair of right and left clamp members 52, 52 which are clamped so as to be scooped upward at the position, and the cross member W5 is scooped upward at a central portion which does not interfere with the cross member support means 15 of the temporary setting set jig 1. And a clamp member 53 for clamping in such a manner.

When transferring the front component W, first, the gripping means 50 is lowered onto the temporary setting jig 1 in the assembling station ST2, and the front component W is moved by the positioning pins 51 and the clamp members 52, 53. Position and grip W. next,
Positioning pins 120 and 121 of wheel house supporting means 12 of temporary setting set jig 1 are retreated inward in the lateral direction, and swing frame 124 is inclined inward in the lateral direction with clamp member 123 unclamped, Further, by moving the positioning pin 122 downward, the support means 12 for the wheel house is moved.
Are separated from the front wheel house W2, and the work holder 133 and the work receiver 135 of the bulkhead supporting means 13 are switched to their respective retracted positions, and the bulkhead supporting means is unclamped with the clamp means 136. 13 was switched to the set position to disengage from the bulkhead W3, the restraint of the dashboard lower W4 by the dashboard restraining means 16 was released, and the clamp member 146 of the dashboard supporting means 14 was unclamped. In this state, the support means 14 is switched to the retracted position to be disengaged from the dashboard lower W4, and the clamp member 115 of the front side frame support means 11 and the clamp member 151 of the cross member support means 15 are unclamped. And the front component W Support means 11 to 15 and the restraining means 16
To be lifted without interfering with the front component W.
Is lifted from the temporary setting jig 1. Next, the temporary setting set jig 1 is moved back from the assembly station ST2 to the set station ST1, and the temporary setting set jig 1 is returned.
Restart the next workset work to. At the same time, the additional jig 2 is moved from the standby location ST3 to the assembling station ST2, and the gripping means 50 is lowered to transfer the front component W to the additional jig 2.

The additional set jig 2 serves as a support member for a front component and has the holes W1a, W1 on the front end side and the rear end side of the bottom wall of the front side frame W1.
Two positioning pins 20 and 21 are provided on the left and right, respectively. By the way, the front component W which has been merely tack-welded is easily deformed due to insufficient strength. If the front component W is supported only by the additional jig 2, deformation of the front component W during additional welding is prevented. In order to ensure assembly accuracy,
It is necessary to provide not only the positioning pins 20 and 21 but also various work receivers and clamp members on the additional set jig 2 to firmly support the front component W. However, this causes a problem that the cost of the additional set jig 2 increases.

Therefore, in this embodiment, as shown in FIG. 2B, the front component W can be firmly supported only by providing the positioning pins 20 and 21 on the additional set jig 2 as described above. While holding the component W with the holding means 50 of the transfer machine 5, the component W is sandwiched between the additional jig 2 and the welding robot 3 in this state.
In this way, additional welding of the front component W is performed. According to this, the front component W is supported not only by the positioning pins 20 and 21 of the additional jig 2 but also by the positioning pins 51 of the gripping means 50 and the clamp members 52 and 53 during the additional welding.
Deterioration of assembly accuracy due to deformation of the front component W is prevented. Further, when the gripping means 50 is lowered onto the additional jig 2, additional welding can be started without retreating the gripping means 50 upward, and the loss time required for the retreat operation of the gripping means 50 is reduced. Thus, the assembly cycle time of the front component W can be shortened.

By the way, an additional assembling station, in which the additional set jig 2 is arranged, is provided separately from the assembling station ST2, and the transfer component 5 conveys the front component W to the additional assembling station to perform additional punching. It is conceivable that the transfer is carried out to the set jig 2. However, in this case, it is necessary to largely move the transfer machine 5. This increases the cost of equipment, increases the space required, and requires a welding robot to be arranged at the assembling station for overstrike.

On the other hand, in the present embodiment, the set jig 2 for additional driving of the front component W simply moves the gripping means 50 of the transfer machine 5 up and down on the assembly station ST2.
Can be transferred to the front component W at the time of transfer.
Can be effectively prevented, and since the same welding robot 3 can be used in the same assembling station ST2 to perform tacking and additional punching, space can be saved and equipment costs can be reduced. Can also be advantageous.

As described above, the front component W
Next, the gripping means 50 is lifted to lift the front component W from the additional jig 2, and the operation of the transfer machine 5 moves the gripping means 50 to a conveyor (see FIG. (Not shown), and the front component W is paid out to the next process by disposing the front component W to the next step. However, by performing the additional welding while holding the front component W with the holding means 50 as described above,
There is no need to re-grip the front component W during the payout operation, and the efficiency of the payout operation is improved.

When the front component W is lifted from the additional set jig 2 as described above, the additional set jig 2 is moved back from the assembling station ST2 to the standby position ST3, and the work is performed during the previous additional welding. The temporary setting jig 1 having completed the setting operation is moved from the set station ST1 to the assembling station ST2, and the above operation is repeated to continuously assemble the front component W.

[0034]

As is apparent from the above description, according to the present invention, the steps of assembling the front side frame by welding and joining the front side frame and the front wheel house, the bulkhead and the dashboard lower on the front side frame. And the process of assembling the front components by welding and joining can be performed at the same assembly station using the same welding robot, which saves space and equipment costs, and requires only replacement of set jigs. Since it is possible to deal with the change of the model of the front component, the setup work at the time of the model change does not require much work, and the productivity is improved. In addition, it is necessary to set the bulkhead and the dashboard lower in addition to the front side frame and the front wheel house on the set jig. Can be set without fear of interfering with the setting, and the setting workability does not deteriorate.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of the device of the present invention.

2A is a side view of the apparatus viewed from the line II-II in FIG. 1 in a state where a setting jig for tacking is inserted into an assembly station, and FIG. 2B is a side view of the apparatus during additional welding.

FIG. 3 is a plan view of a temporary setting jig.

FIG. 4 is a side view of the setting jig for tacking as viewed from the direction of arrow IV in FIG. 3;

FIG. 5 is a front view of the temporary setting jig viewed from the direction of arrow V in FIG. 3;

6 is a rear view of the setting jig for tacking as viewed from the direction of arrow VI in FIG. 3;

7 is a front view of the support means for the wheel house as viewed from the direction of arrow VII in FIG. 3;

8 is a side view as viewed from the direction of arrow VIII in FIG. 7;

FIG. 9 is a side view of the dashboard support means viewed from the direction of arrow IX in FIG. 3;

FIG. 10 is a plan view of a holding unit of the transfer machine.

11 is a side view as viewed from the direction of arrow XI in FIG. 10;

FIG. 12 is an exploded perspective view of a front component.

[Explanation of symbols]

W Front component W1 Front side frame W2 Front wheel house W3 Bulkhead W4 Dashboard lower ST1 Set station ST2 Assembly station 1 Temporary set jig (set jig) 3 Welding robot 11 Side frame support means 12 Wheel house support Means 13 Support means for bulkhead 14 Support means for dashboard

Continuation of the front page (72) Inventor Koichi Maekawa 1-10-1, Shinsayama, Sayama City, Saitama Prefecture Inside Honda Engineering Co., Ltd. (72) Inventor Junichi Sakamoto 1-10-1, Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Stock In-house (72) Inventor Isamu Ishizaki 1-10-1 Shinsayama, Sayama-shi, Saitama Honda Engineering Co., Ltd. F-term (reference) 3C030 CC01 DA01 DA17 DA26 DA27 DA32 DA37 3D114 AA04 AA11 BA03 DA01 DA17 EA03 FA09 GA08

Claims (1)

[Claims] The left and right front side frames and the left and right front wheel houses are welded together to assemble the left and right front side members, and the front and rear ends of the left and right front side members are connected to each other. For assembling the front components of the vehicle body by welding and connecting the bulkhead and the dashboard lower to each other, reciprocating between the set station, the assembly station where welding robots are arranged on both left and right sides, and the set station and assembly station The set jig is provided with a pair of left and right side frame support means for positioning and supporting the left and right front side frames, and the left and right front wheel houses on each front side frame. Position and support the front wheel house so that it joins. A pair of left and right wheel house support means, an assembly position where the bulkhead is positioned and supported from the front side, and the bulkhead is joined to the front ends of the front side members on both the left and right sides, and a front of the assembly position. A bulkhead supporting means movable to a set position in which the dashboard lowers, and a dashboard lower positioned and supported from the front side, and a dashboard lower joined to the rear ends of the left and right front side members. A supporting means for the dashboard which is movable between a setting position and a set position above and behind the assembling position, and when the set jig is returned to the set station, the support means for the bulkhead and the support for the dashboard are provided. The means are switched to the set position, and the supporting means for each side frame, the supporting means for each wheel house, the supporting means for the bulkhead, and the dash The front side frames on the left and right sides, the front wheel houses on the left and right sides, the bulkhead, and the dashboard lower can be set freely on the board support means. When the set jig is moved to the assembly station, the bulkhead While holding the support means for the dashboard and the support means for the dashboard at the respective set positions, the front side frames on the left and right sides and the front wheel houses on the left and right sides are welded together by a welding robot, and the front side members on the left and right sides. Then, the support means for the bulkhead and the support means for the dashboard are respectively switched to the assembling positions, and the bulkhead and the dashboard are respectively mounted on the front end and the rear end of the front side members on the left and right sides by the welding robot. A vehicle characterized by assembling a front component by welding and joining a lower part. Front component assembly apparatus.