JP2001063648A - Body assembly equipment - Google Patents

Abstract

(57) [Summary] A jig for holding a side panel combined with a floor is mounted on an upper inner side surface of a gantry 7 disposed outside a vehicle body assembly station ST2. Fixed frame 1 provided below the side
In the case where a plurality of welding robots 11 for welding and connecting the side panels to the floor are mounted movably back and forth, maintenance workability of the welding robot 11 is improved. SOLUTION: The gantry 7 has a lower length 71 in the front-rear direction of the lower part 71 as compared with the length of the upper part 70 in which the jig is mounted.
It is formed in the shape of a letter and secures an empty space reaching the fixed frame 10 in front of and behind the lower part 71. Fixed frame 1 at the front and rear of fixed frame 10 facing the empty space
Welding robots 11 on 0
Perform maintenance work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body assembling apparatus for assembling an automobile body by welding left and right side panels to a floor.

[0002]

2. Description of the Related Art Conventionally, as this kind of body assembling apparatus, as shown in Japanese Patent Publication No. Sho 63-53073, a jig is mounted on a mount disposed on each of right and left outer portions of a body assembling station. The left and right side panels are held by a jig in a state of being combined with the floor of the vehicle body, and in this state, the side panels are welded and connected to the floor to assemble the vehicle body.

In this apparatus, a plurality of welding guns are mounted on a jig, and the side panels are welded to the floor by means of these welding guns. If expensive jigs equipped with guns are prepared for each model, equipment costs increase.

[0004] Therefore, on each of the left and right sides of the vehicle body assembling station, a fixed frame that is longitudinally located below the jig is disposed, and a plurality of welding robots are mounted on the fixed frame so as to be movable back and forth. It has been considered that the side panels are welded to the floor by these welding robots so that the welding gun does not have to be mounted on the jig.

[0005]

SUMMARY OF THE INVENTION
It is formed in a rectangular shape that is long in the front-rear direction with the same length in the front-rear direction of the upper part and the lower part in the front-rear direction, on which the jig is mounted. Hide in the shadow of. For this reason, maintenance work such as dressing of the electrode tip of the welding gun mounted on the welding robot is performed by an operator entering the space between the fixed frame and the gantry,
Since this space is fairly narrow, workability is poor, and the burden on the operator becomes heavy, and the work takes time, which is a problem in improving productivity.

In view of the above, it is an object of the present invention to provide a vehicle body assembling apparatus capable of improving workability of maintenance work of a welding robot.

[0007]

Means for Solving the Problems In order to solve the above problems,
The present invention mounts a jig on a gantry arranged on each of the left and right outer portions of the vehicle body assembling station, and holds the left and right side panels of the vehicle body in combination with the floor of the vehicle body by the jig. A body assembling apparatus for assembling an automobile body by welding and connecting each side panel to a floor in a state, and a longitudinally fixed frame located below a jig is arranged on each of left and right sides of a body assembly station. In this fixed frame, a plurality of welding robots for welding each side panel to the floor are mounted so as to be able to move back and forth. It is formed in a T-shape with a reduced length in the direction, and an empty space reaching the fixed frame is secured in front of and behind the lower part of the gantry.

According to the present invention, the welding robot on the fixed frame is gathered at the front and rear portions of the fixed frame facing the empty space at the lower front of the gantry and the empty space at the lower rear of the gantry. Maintenance work for all welding robots can be performed with good workability. Thus, the burden on the operator during the maintenance work is reduced and the work time is shortened, so that productivity can be improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a floor W1, a roof W2, a dashboard upper W3, and a rear tray W shown in FIG.
An embodiment in which the present invention is applied to a vehicle body assembling apparatus for assembling an automobile body W by welding left and right side panels W5 and W5 to the vehicle body W will be described.

As shown in FIGS. 1 and 2, the vehicle body assembling apparatus is composed of a straight line extending in the front-rear direction in which a set station ST1, a vehicle body assembling station ST2, and a payout station ST3 are arranged in this order from the upstream side. . On the line, a pair of left and right guide rails 1, 1 is laid over the entire length of the line.
A set carriage 2 that reciprocates between the set station ST1 and the vehicle body assembly station ST2, and a payout carriage 3 that reciprocates between the vehicle body assembly station ST2 and the payout station ST3 are mounted thereon. And
Floor W on set trolley 2 at set station
1. The roof W2, the dashboard upper W3, the rear tray W4, and the left and right side panels W5 are set in a front-facing position such that the front of the vehicle body faces the front of the line.
To the vehicle body assembly station ST2, where the left and right side panels W5, W5 are welded to the floor W1, the roof W2, the dashboard upper W3, and the rear tray W4 by welding, and the vehicle body W thus assembled is dispensed. Delivery station ST by cart 3
3, and the vehicle body W is carried out from the station ST3 to the additional line by a transport device (not shown).

A pair of first set robots 4 and 4 for a side panel W5 are arranged on the left and right outer portions of the set station ST1, and furthermore, the set station S
The second set robot 5 for the roof W2 and the rear tray W4 is arranged on one of the left and right outer sides of the end on the vehicle body rear side (line rear side) of T1, and the set station ST1
The third set robot 6 for the dashboard upper W3 is provided on one of the left and right outer portions of the front end of the vehicle body (front of the line).
Has been arranged. When the set trolley 2 is returned to the set station ST1, the floor W1 is set on the set trolley 2 from behind the line by a transfer device (not shown), and the first to third set robots 4, 5, 5 are set.
At 6, the side panel W5, the rear tray W4, the roof W5, and the dashboard upper W3 are set.

As shown in FIG. 3, each of the set robots 4, 5, and 6 has a turntable 4a, 5 that can turn around a vertical axis.
a, 6a, first robot arms 4b, 5b, 6b swingably connected to the swivel table, and second robot arms 4c, 5c, swingably connected to the tip of the first robot arm.
6c and a six-axis articulated robot having three-axis wrists 4d, 5d, and 6d connected to the tip of the second robot arm.

The wrist 4 as the operating end of the first set robot 4
d is provided with a side panel holder 4e.
The side panel W5 carried into an appropriate supply position such as around the arrangement portion of the first set robot 4 or above the set station ST1 is held by the side panel holder 4e, and placed on the set carriage 2 by the first set robot 4. The side panel W5 is set.

The wrist 6 which is the operating end of the third set robot 6
A dashboard upper holder 6e is attached to d, and the dashboard upper W3 carried into an appropriate supply position around the arrangement portion of the third set robot 6 is held by the dashboard upper holder 6e. , Set cart 2
The dashboard upper W is set by the third set robot 6 at a predetermined set position between the left and right side panels W5, W5 set by the pair of first set robots 4, 4 on the left and right.
3 is set.

The wrist 5 as the operating end of the second set robot 5
A roof holder 5e for holding the roof W2 is attached to d. Then, the rear tray W4 is positioned on the rear side of the roof holder 5e at an end of the roof holder 5e near the front end of the roof W2, and the lower surface of the rear tray W4 is positioned on the roof W2.
The rear tray holder 5f for holding the rear tray facing forward is attached. Then, after the roof W2 and the rear tray W4 carried into appropriate supply positions around the arrangement portion of the second set robot 5 are held by the roof holder 5e and the rear tray holder 5f, respectively, first, As shown in FIG. 4 (A), the roof holder 5e is set in an upright position in which the rear tray holder 5f faces downward, and in this state, the rear tray W4 is set on the set carriage 2 on the left and right side panels W.
5, set at a predetermined set position between the rear upper edges of W5. At this time, the roof W2 stands up at a position offset behind the rear tray W4 in the vehicle body (rearward of the line), and the rear tray W4 can be set without causing interference of the roof W2 with the side panel W5. Next, the posture of the roof holder 5e is changed to a horizontal posture as shown in FIG.
The roof W2 is set between the upper edges. Thus, the second
By performing the setting work of the rear tray W4 and the roof W2 by the set robot 5, the number of robots used can be reduced, and the equipment cost can be reduced.

As shown in FIGS. 1, 2 and 5, fixed bases 7a are provided on the left and right outer portions of the vehicle body assembling station ST2.
It is movable in the horizontal direction along the upper guide rail 7b, and the working position in the horizontal direction (the position in the right half of FIG. 5) and the standby position in the horizontal direction (the right half portion in FIG. 5) via the feed screw 7d by the motor 7c. A jig for positioning and holding the side panel W5 on the upper frame 70 fixed to the upper part of the gantry 7 and extending in the front-rear direction. 8 is mounted in an inward posture facing inward in the lateral direction. In the vehicle body assembling station ST2, a plurality of positioning pins 9a which are fitted into a plurality of positioning holes formed on the lower surface of the set cart 2 are erected, and the elevator 9 is moved up and down by a motor 9b via a rack and pinion mechanism 9c. 9 are provided. Then, after moving the set cart 2 to the body assembling station ST2, the set cart 2 is positioned by lifting the elevating platform 9 and lifted from the guide rail 1. In this state, the gantry 7 is moved to the working position and set. The jig 8 receives the side panels W5 on the trolley 2 in combination with the floor W1, the roof W2, the dashboard upper W3, and the rear tray W4.

On each of the left and right sides of the vehicle body assembling station ST2, a fixed frame 10 which is located below the jig 8 and is long in the front-rear direction is arranged. 70, four welding robots 11 and 12 are mounted, respectively, and the side panel W5 held by the jig 8 is welded to the floor W1 by the welding robot 11 mounted on the fixed frame 10, and the side panel W5 is placed on the upper side. The roof W2, the dashboard upper W3, and the rear tray W4 are welded to each other by the welding robot 12 mounted on the frame 70.

Each of the welding robots 11 and 12 includes a guide rail 10 fixed to a fixed frame 10 or an upper frame 70.
The robot bodies 11a and 12a are movable in the front-rear direction along a and 70a, the first robot arms 11b and 12b are swingably connected to the robot body, and are swingably connected to the distal end of the first robot arm. 2nd robot arm 1
1c, 12c and a 6-axis robot having three-axis wrists 11d, 12d connected to the tip of the second robot arm. The welding gun G attached to the wrists 11d, 12d is connected to a side panel W5 and a floor. The spot welding is performed by moving to each predetermined hitting point for connecting with another vehicle body component such as W1.

The pedestal 7 is formed in a T-shape in which the length of the lower portion 71 in the front-rear direction is shorter than the length of the upper frame 70 in the front-rear direction. You have enough free space to reach. Thus, by gathering the welding robots 11 on the fixed frame 10 at the front and rear portions of the fixed frame 10 facing these empty spaces, the tip dressing of the welding gun G is performed on all the welding robots 11 on the fixed frame 10. Such maintenance work can be performed in an empty space with good workability.

As shown in FIG. 6, the set cart 2 has
Four pairs of front and rear floor support members 20 ₁ , 20 ₂ , 2 each for positioning and supporting the floor W 1 at four front and rear positions.
0 _3, 20 ₄ and, members 21 _1-receiving two pairs of side sill around the respective left and right pair that receives the bonding portion serving as the door sill of the floor W1 and each of the side panels W5 before and after two places, 21
₂ and a pair of left and right side panel pressing members 22 ₁ , 22 ₂ for pressing the left and right side panels W5, W5 from outside in the lateral direction with the front pillar portion and the rear wheel house portion. Left and right side panels W5 and W5 by the side panel pressing members 22 ₁ and 22 _2.
To the floor W1 and both side panels W
The roof W2, the dashboard upper W3, and the rear tray W4 are sandwiched between 5, W5.

The support member 20 ₁ to 20 ₄ floor is composed of a pin-like member which is fitted into a hole formed in the floor W1. Here, the floor supporting member 20 ₂ supporting the floor W1 at the front end of the passenger compartment portion is immobile with respect to the set bogie 2 is erected on a fixed frame 23 on the set bogie 2, the remaining floor Support members 21 ₁ , 20 ₃ , 20
Reference numeral ₄ denotes a cross-axis unit 24 having a three-axis structure that allows the position to be adjusted in the front-rear, left-right, and up-and-down directions so as to cope with a change in vehicle type. Cross table unit 2
Reference numeral 4 denotes a pair of left and right third tables 24c, 2 which are provided on the first table 24a which moves back and forth and which are vertically moved on the second table 24b.
Those formed by mounting 4c, are erected each floor support member 20 _1, 20 _3, 20 ₄ on the third table 24c.

Each side sill receiving member 21 ₁ , 21 ₂ is also
In order to cope with changes in the vehicle type, the position can be adjusted vertically and vertically. That is, the lift frame 26 is raised and lowered via the screw mechanism 26b feed the motor 26a on the movable frame 25 to move back and forth is provided, is attached to this lifting frame 26 receives for each side panel member 21 _1, 21 _2. Moreover, members 21 _1, 21 ₂ receive for each side sill is attached to the elevator frame 26 so as to be swung in the vertical direction via a toggle link mechanism 21b by demonstrating as the cylinder 21a in FIG. The shaded region in FIG. 7 is an interference area for said welding robots 11 when welding robots 11 on the stationary frame 10 is in the welding operation, member 21 ₁ receives for each side panel, 21 ₂ downward by swinging, and to draw the retracted position shown in phantom in FIG. 7 which does not cause interference with the welding robot 11 of the side sill for receiving members 21 _1, 21 ₂ in the welding operation.

A pair of left and right first side panel pressing members 2 for pressing the front pillar portion of the side panel W5.
2 _1, 22 _1, as shown in FIGS. 8 and 9, the laterally movable left and right pair of slide frame 22 ₁ a, 22 ₁ a, respectively, are relief operation in the longitudinal direction in the cylinder 22 ₁ b It is installed as follows. The two slide frames 22 ₁ a are moved synchronously inward and outward in the lateral direction by a pair of left and right feed screws 22 ₁ c, 22 ₁ c which are synchronously driven via a belt by a motor (not shown). . Thus, with both the first side panel pressing members 21 ₁ and 21 ₁ standing upright, the two slide frames 2
2 ₁ a, 22 ₁ a to the left and right side panels W5, W5 by moving laterally inward can be pressed laterally outwardly. The first side panel pressing member 22 ₁
The slide frame 22 ₁ a is moved to the laterally inner end position shown by the imaginary line in FIG. 8 in a state where the slide frame 22 ₁ a is laid down in front of the vehicle body (front of the line), whereby the first side panel pressing member 22 ₁ is moved.
Is drawn into the retreat position where no interference occurs with the welding robot 11 during the welding operation.

A pair of left and right second side panel pressing members 2 for pressing the rear wheel house portion of the side panel W5
2 _2, 22 _2, as shown in FIGS. 10 and 11, so that may address model change position adjustment in the longitudinal direction, is mounted on the movable frame 27 to move back and forth. On the movable frame 27, a pair of left and right slide frames 22 ₂ a, 22 ₂ a movably in the lateral direction are provided offset in the front-rear direction.
Is mounted so as to be undulating lateral movement by 2 ₂ a in the pressing member 22 ₂ for each of the second side panel cylinder 22 ₂ b. On the movable frame 27, both slide frames 22 ₂ a, 22 ₂
a pair of front and rear feed screws 22 ₂ c, 22 ₂
c is supported by a shaft, and both feed screws 22 ₂ c, 22 ₂ c are connected at one end thereof via a gear 22 ₂ d, and one feed screw 22 ₂ c is mounted on a movable frame 27 by a motor 22 ₂ e. , The two slide frames 22 ₂ a, 22 ₂ a are synchronously moved inward and outward in the lateral direction. Thus, both the second side panel pressing members 22 ₂ , 2
2 ₂ both slide frames in a state of being erected 22 ₂ a, 22 ₂ a
Is moved inward in the horizontal direction, the left and right side panels W5 and W5 can be pressed from the outside in the horizontal direction. The pressing member 22 ₂ for each of the second side panel cylinder 2
It is configured to expand and contract at 2 ₂ f. Then, the slide frame 22 ₂ a is moved inward in the horizontal direction while the second side panel pressing member 22 ₂ is laid down laterally outward, and the second side panel pressing member 22 ₂ is contracted. Accordingly, no interference with the welding robot 11 during the welding operation the pressing member 22 ₂ for the second side panel 10
Is retracted to the retreat position indicated by a virtual line.

Thus, at the body assembling station ST2, the side panel W5 on the set cart 2 is moved to the floor W1.
After it received in the jig 5 with the other vehicle body components and the like, immediately be started welding operation by the welding robot 1, member 21 ₁ receives a side sill, 21 ₂ and a side panel pressing member 22 _1, 22 ₂ As described above, the set carriage 2 can be moved back to the set station ST1 without causing interference with the welding robot 11. Therefore, the welding work at the body assembling station ST2 is performed at the set station ST1 of the set cart 1.
Can be started without waiting for the return to, and the cycle time can be reduced.

By the way, the jig 8 mounted on the gantry 7 is dedicated for each vehicle type, and it is necessary to replace the jig 8 when changing the vehicle type. Therefore, a jig exchanging device 13 is arranged adjacent to the front of the gantry 7 on each of the left and right outer portions of the payout station ST3, and the jig 8 can be exchanged between the gantry 7 and the jig exchanging device 13. .

A support frame 72 for the jig 8 is provided on the upper frame 70 of the gantry 7.
As shown in FIG. 14, a plurality of roller units 73 as upper and lower guide members, which are engaged with a pair of upper and lower guide rails 8a, 8a, which are attached to the back side of the jig 8 and are vertically opposed, are attached. The jig 8 is supported by the support frame 72 via the guide rails 8a, 8a and the roller unit 73 so as to be movable in the front-rear direction while keeping the inward posture.

The support frame 72 is formed by a pair of front and rear guide bars 72 with respect to the upper frame 70 by a cylinder 72a.
It is supported so as to be able to freely contact and separate in the lateral direction via b and 72b. The upper frame 70 is provided with a vertical positioning member 74 and a front-rear positioning member 75, and when the support frame 72 is pulled toward the upper frame 70, the vertical positioning provided on the back surface of the jig 8 is provided. The engagement member 8b for positioning and the positioning engagement member 8c for positioning in the front-rear direction engage with the corresponding positioning members 74 and 75, respectively, so that the jig 8 is positioned with respect to the upper frame 70 in the vertical direction and the front-rear direction. I have to. The jig 8 is further clamped on the upper frame 70 so that the back surface thereof is in close contact with a receiving seat 76 serving as a horizontal positioning reference fixed to the upper frame 70.
A clamp member 77 having a swing type clamp rod 77a is provided. Thus, by pulling the support frame 72 toward the upper frame 70 and operating the clamp member 77, the jig 8 is fixed to the upper frame 70 in a three-dimensionally positioned state.

As shown in FIGS. 15 and 16, the jig changing device 13 includes a rotating body 131 rotatably supported on a base 130 so as to be rotatable around an axis in the front-rear direction. Rotating body 131
A circular wheel 131a is fixed to the front end of
A motor 131d having a sprocket 131c on an output shaft meshing with a chain 131b wound around the outer periphery of the wheel 131a is mounted on the base 130 so that the rotating body 131 can be rotated by the motor 131d.

The rotating body 131 is composed of a frame framed in a rectangular shape which is long in the front-rear direction. A stock frame 132 for the jig 8 is attached to both sides of the rotating body 131, and the rotating body 131 is rotated. Any one of the two stock frames 132, 132 can be freely selected in the laterally inner replacement position.
Each stock frame 132 is provided with a plurality of roller units 133 as upper and lower guide members with which a pair of upper and lower guide rails 8a, 8a of the jig 8 are engaged. It is supported by the stock frame 132 via the guide rails 8a, 8a and the roller unit 133 so as to be movable in the front-rear direction.

When the gantry 7 is moved to the standby position and the support frame 72 is separated inward in the horizontal direction from the upper frame 70, the stock position existing at the exchange position with the roller unit 73 on the support frame 72 is set at the exchange position. The roller unit 133 on the frame 132 is set to be aligned on a straight line in the front-rear direction, and thus the stock frame 1 selected at the replacement position is set.
The jig 8 is placed between the roller unit 13 and the support frame 72.
The guide can be transferred while maintaining the inward posture by being guided by the third and third members.

The stock frame 132 is provided with a release mechanism 134 for reducing the distance between the upper and lower roller units 133 and 133 to release each roller unit 133 from each guide rail 8a. Thus, another jig 8 can be mounted on the stock frame 132 by disengaging the guide rail 8a and the roller unit 133.
The release mechanism 134 is a rail 1 fixed to the stock frame 132.
A pair of upper and lower slide plates 134b, 1 supported by 34a
34b and a cylinder 134 for moving the two slide plates 134b, 134b toward and away from each other via a toggle link 134c.
d, on both slide plates 134b, 134b,
The upper and lower roller units 133 and 133 are attached, respectively, so that the distance between the upper and lower roller units 133 and 133 is reduced by the approach operation of the two slide plates 134b and 134b.

The base 130 is further provided with a transport mechanism 135 for transporting the jig 8 in the front-rear direction between the stock frame 132 and the support frame 72 at the replacement position. The transport mechanism 135 is provided with a hook 135c which can be engaged with a hook 8d hanging down from the front end of the jig 8 on a traveling body 135b supported on a guide rail 135a on the base 130 so as to be movable back and forth.
Is mounted so as to be raised and lowered by the cylinder 135d. A motor 135g having a sprocket 135f on an output shaft meshing with a chain 135e fixed to the base 130 is mounted on the traveling body 135, and the traveling body 135 is moved by the motor 135g to guide rails 135.
Self-run along a.

The rotating body 131 has a pair of stoppers 136 and 136 at the front end corresponding to the pair of stock frames 132 and 132, and a pair of clamp members opened and closed by the cylinder 137a at the rear end. 137, 137 are provided so that the jig 8 supported by each stock frame 132 can be sandwiched between each stopper 136 by each clamp member 137.

When the jig is replaced, the gantry 7 is moved to the standby position, the clamp member 77 is unclamped, and then the support frame 72 is separated from the upper frame 70 inward in the horizontal direction, so that the support frame 72 is moved in the vertical and horizontal directions. Positioning engagement members 8b, 8c
Are disengaged from the corresponding positioning members 74 and 75, and the traveling body 135b is moved backward to erect the hook 135c, and the used jig 8 supported by the support frame 72 is moved.
The hook 135c is engaged with the hook 8d. next,
The traveling body 135b is moved forward, and the used jig 8 is moved from the support frame 72 to one of the stock frames 132 at the replacement position.
Transfer to When the transfer is completed, the clamp member 137 for the one stock frame 132 is closed, the hook 135c is lowered, and then the rotating body 131 is rotated to support the jig 8 for the next vehicle type. Is selected as the exchange position. Next, hook 1
The hook 35c is engaged with the hook portion 8d of the jig 8 supported by the other stock frame 132 while the clamp 35c for the other stock frame 132 is opened. Next, the traveling body 135b is moved rearward to transfer the jig 8 for the next vehicle type from the other stock frame 132 to the support frame 72. Next, the support frame 72 is drawn toward the upper frame 70 and the clamp member is pulled. The jig 8 is clamped at 77, and the jig exchange is completed. After the jig replacement is completed, the traveling body 1 is held in a state where the hook 135c is turned down.
35b is moved forward, and waits at this position until the next jig replacement.

In the above-described embodiment, the stock frames 132 are provided on two surfaces around the rotating body 131. However, the rotating body 131 is formed in a prism shape having a triangular or square cross section, and three rotating bodies 131 It is also possible to provide the stock frame 132 described above.

Further, in the above embodiment, the welding robot 12 for welding the upper part of the vehicle body is mounted on the upper frame 70 of the gantry 7, but the fixed frames are arranged above the left and right sides of the vehicle body assembly station ST2. Alternatively, a plurality of welding robots may be suspended from the fixed frame, and the upper part of the vehicle body may be welded by these welding robots.

[0038]

As is apparent from the above description, according to the present invention, maintenance work of all welding robots on the fixed frame can be performed with good workability in an empty space, and the maintenance work can be performed by the worker. The burden is reduced and the working time is shortened, and the productivity is improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a vehicle body assembling apparatus to which the present invention is applied.

FIG. 2 is a side view of the vehicle body assembling apparatus as viewed from the direction of arrow II in FIG. 1;

FIG. 3 is a front view of the set station as viewed from the line III-III in FIG. 2;

FIG. 4A is a side view showing a state where the rear tray is set by the second set robot, and FIG. 4B is a side view showing a state where the roof is set by the second set robot.

FIG. 5 is a front view of the vehicle body assembling station as viewed from the line VV in FIG. 2;

FIG. 6 is a perspective view of a set cart.

7 is a front view of the side sill receiving member as viewed from the line VII-VII in FIG. 6;

8 is a front view of the first side panel pressing member as viewed from the line VIII-VIII in FIG. 6;

FIG. 9 is a left side view of FIG. 8;

10 is a front view of the second side panel pressing member viewed from the line XX in FIG. 6;

FIG. 11 is a plan view of a second side panel pressing member.

FIG. 12 is a side view of the upper part of the gantry viewed from the inside in the lateral direction.

13 is a plan view cut along the line XIII-XIII of FIG. 12;

14 is an enlarged sectional view taken along line XIV-XIV of FIG.

FIG. 15 is a side view of the jig changing device as viewed from the inside in the lateral direction.

16 is a sectional view taken along line XVI-XVI of FIG.

FIG. 17 is a perspective view showing a vehicle body constituent member.

[Explanation of symbols]

W1 floor W5 side panel ST2 body assembly station 7 gantry 70 upper frame (upper part of gantry) 71 lower part of gantry 8 jig 10 fixed frame 11 welding robot

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Teiji Miwa 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Masashi Koike 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Hong (72) Inventor Nagahisa Kitamura 1-1-10, Shinsayama, Sayama-shi, Saitama F-term (reference) 3D114 AA11 AA20 BA01 CA06 DA12 DA17 EA03 EA04 FA06 FA09 GA06

Claims (1)

[Claims] 1. A jig is mounted on a gantry arranged on each of left and right outer portions of a vehicle body assembling station, and left and right side panels of the vehicle body are held in a state combined with the floor of the vehicle body by the jig. A body assembling apparatus for assembling an automobile body by welding and connecting each side panel to a floor in this state. A left and right longitudinal frame located below a jig is provided on each of the left and right sides of the body assembly station. A plurality of welding robots that weld each side panel to the floor are mounted on this fixed frame so that it can move back and forth. A vehicle body assembling device, which is formed in a T-shape with a reduced length in the front-rear direction, and secures an empty space reaching a fixed frame in front and rear of a lower portion of a gantry.