JPS5929464B2 - Parallel production type car body assembly equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a parallel production type vehicle body assembly device, more specifically, a plurality of vehicle types and vehicle types (sedans, hard tops, pans, etc. within one vehicle type are referred to as a vehicle type, and the concept is that a vehicle type is a vehicle type. Define as a higher concept.

) relates to a parallel production type vehicle body assembly device that can assemble. Currently, from the perspective of capital investment, attempts are being made to implement parallel production, which involves assembling multiple car types and models on one line.

Generally, there are three types of one car type: sedan, hardtop, and pan, and each has a partially different shape, so if you try to assemble multiple (n number) car types on one line, the car body 3Xn compatibility is also required for jigs for positioning parts, welding equipment, etc. It is also recognized that the precision of the car body is extremely important as it affects the quality of the car itself. In particular, the accuracy when molding the box structure of the car body, that is, when welding the floor, side body, cowl assembly, and rear waist to form the box structure, affects the accuracy of the car body. For this reason, U.S. Patent No. 3,288,978 and Japanese Patent Publication No. 53-21,542 are known as car body assembly devices that assemble car bodies with precision, but these are intended to assemble a single car type, and do not require parallel production. is not taken into account. The first aspect of this invention is to provide a parallel production type vehicle body assembly device that is capable of assembling vehicle bodies compatible with a plurality of vehicle types and models, and the second aspect of the present invention is to improve the accuracy of the vehicle body as a box at the same time as assembly. The present invention provides a parallel production type vehicle body assembly device that enables parallel production.

This invention will be explained below based on the drawings. 1 to 19 are diagrams showing a first embodiment of the present invention.

First, to explain the configuration, in Figs. 1, 2, and 3, 1 is a floor surface, and above the floor surface 1 is a floor conveying means that primarily conveys the floor F in the direction of the arrow by reciprocating. A shuttle bar 12 is provided. Note that finger 1, which receives the floor of shuttlecock 12, has been omitted. Side body assembly mechanisms 10 are installed on the floor surface 1 on both sides of the shuttle bar 12, respectively. As shown in detail in FIGS. 4 and 5, each side body assembly mechanism 10 has a flat base 11 provided on the floor 1, and on this base 11 there are two shuttle bars mounted parallel to each other. A slide stand 12 is installed as three rails extending perpendicularly to the top. A slide plate 13 is fixed on each slide table 12, and a slide leg 15 fixed to the lower surface of a frame 14 so as to face each slide table 12 is slidably supported on each slide plate 13. 16 is a motor installed on the base 11, and the output shaft 17 of this motor 16 and the base 1
It is connected to an input shaft 19 of a reduction gear 18 installed on the gear 1 by a coupling 20.

21 and 22 are two pairs of bearings, and these bearings 21 and 2
2 is connected to the output shaft 2 of the reducer 18 via a coupling 23.
A rotary shaft 2 parallel to the shuttle bar 2 connected to the
5 is rotatably supported, and this rotating shaft 25 is rotated by the operation of a motor 16.

Reference numeral 26 denotes a pair of pinions fixed to the rotating shaft 25. These pinions 26 mesh with a pair of racks 27 extending perpendicularly to the shuttle bar 2 attached to the lower surface of the frame 14, and when the pinion 26 rotates, Frame 14 includes slide plater 3 and slide legs 15
It approaches and separates from the shuttle bar 12 while making sliding contact with the shuttle bar 2.

Reference numeral 28 indicates two pairs of shock absorbers 1 installed on the base 11, and these shock absorbers 28 are arranged at the forward limit where the frame 14 is closest to the shuttle bar 12 and at the backward limit where the frame 14 is farthest from the shuttle bar 12. A pair of stoppers 28a fixed to the lower surface of the frame 14 at the end
This contact reduces the impact when the frame 14 stops at its forward and backward limit.

Reference numeral 29 denotes a pair of locking devices installed on the base 11, and these locking devices 29 lock when the claw 29a engages with the claw 29b of the frame 14 and the frame 14 is at the forward limit.
Lock the frame 14 to the base 11.

Support frames 30 and 31 are attached to the front and rear ends of the frame 14, respectively, and bearings 32 and 3 are mounted on each support frame 30 and 31.
3 is fixed. Coaxial rotating shafts 34 and 35 are rotatably supported by the bearings 32 and 33, respectively. A rotating base 45 as a jig base is provided between the support frames 30 and 31.
This rotating base 45 has a pair of parallel base plates 46, 47 and these base plates 46, 47.
It is comprised of a rectangular frame 48 located between and connecting the opposing peripheral edges to each other. Couplings 49, 50 are fixed to the front and rear ends of the rectangular frame 48, respectively, and the inner ends of the rotating shafts 34, 35 are fixed to these couplings 49, 50, respectively. Therefore, the rotating base 45 includes the frame 14, the supporting frames 30, 31, the rotating shafts 34, 35, and the bearings 3.
It is rotatably supported via 2 and 33. The frame 14 and the support frames 30 and 31 constitute a movable support body 51 as a whole. An air motor 55 is attached to the support frame 31 via a bracket 54, and this air motor 55 is connected to a reduction gear 56 installed on the bracket 54. The output shaft 57 of the reduction gear 56 and the outer end of the rotating shaft 35 are coupled via a coupling 58. Therefore, when the air motor 55 operates,
The rotation of this output shaft 57 is controlled by the coupling 58 and the rotating shaft 35.
, are transmitted to the rotating base 45 via the coupling ring 50, causing the rotating base 45 to rotate around the axes of the rotating shafts 34 and 35. As shown in detail in FIG. 4, the rotating base 45 has two positions: a first position where the base plate 46 faces the shuttle bar 12, and a first position where the rotating base 45 rotates 180 degrees from this first position so that the base plate 47 faces the shuttle bar 2. Second to do
This rotation is performed when the frame 14 is at the retracting limit in order to avoid interference with surrounding equipment such as a welding robot. Two pairs of stopper plates 65 are provided on the upper and lower surfaces of the front and rear ends of the rotation base 45, respectively.
66 is attached, and these stopper plates 65, 66
One of these stopper plates 65 is placed on the frame 14 directly below the
, 66 are attached to abuttable shock absorbers 67, 68. The buffer bodies 67 and 68 are connected to cases 69 and 70,
It consists of rubbers 71 and 72 supported by cases 69 and 70, and when the rotating base 45 rotates from the first position to the second position or from the second position to the first position, By abutting the tips of the stopper plates 65 and 66, respectively, the impact when the rotation base 45 stops rotating is alleviated. Two pairs of lock blocks 73 and 74 are fixed to the upper and lower portions of the front and rear end surfaces of the rotating base 45, respectively. Numerals 80 and 81 are locking means attached to the supports 30 and 31, respectively, for positioning and locking the rotating base 45 in the first or second position.
, 81 are each support frame 30, 31 as shown in detail in FIG.
A cylinder 83 is swingably supported on the bracket 82 via a pin 84.

The tip of the piston rod 85 of the cylinder 83 is connected to one end of a first link 86 via a pin 87, and the other end of the first link 86 is connected to a second link 89 connected to the bracket 82 via a pin 88 with a pin 90. are connected via. 91 has one end connected to the bracket 82 via a pin 92,
The other end is a third link connected to the center of the first link 86 via a pin 93.

The first link between this third link 91 and pins 90 and 93
The link 86 constitutes a toggle link. A plate 94 is fixed to the tip of the second link 89, and this plate 94 locks the lock blocks 73, 74 when the cylinder 83 is actuated and its piston rod 85 protrudes.
touches one side of the Reference numeral 95 denotes a stopper block attached to each support frame 30, 31, and a lock block 73,
74 is held, the rotation base 45 is positioned and rotated.

Again in FIGS. 4 and 5, when the base plate 46 is located at the first position, the upper and lower parts of the base plate 46, that is, one side of the rotating base 45, are fitted with a plurality of predetermined jigs for, for example, A-car type. 100 and 101 are provided. Each fixture 100 holds the upper part of the side body 1B, and has a bracket 102 fixed to the base plate 46. This bracket mouth 02
As shown in detail in FIG. 7, the center portion of an arm 104 is rotatably supported at the tip of the arm 104 via a pin 103.
This arm 104 is rotated by a motor (not shown) and is positioned and locked at a predetermined position. A clamp base 107 having a guide surface 106 is rotatably supported at one end of the arm 104. Further, a cylinder 108 is swingably supported at one end of the arm 104, and the tip of a piston rod 109 of this cylinder 108 is connected to the clamp base 107. When the cylinder 108 is operated, the clamp base 10
7 rotates. The cylinder 11 is attached to the clamp base 107.
0 is swingably supported, and the clamp claw 111 is rotatably supported. The tip of the piston rod 112 of the cylinder 110 is connected to a clamp pawl 111, and when the cylinder 110 operates, the clamp pawl 111 moves between a clamp position where the upper part of the side body B is clamped together with the guide surface 106, and an unclamp position. ,
can be taken. The aforementioned clamp base 107,
The cylinders 108, 7110 and the gangway pawl 111 as a whole constitute a jig member 113 that receives, for example, a side body of an A-type sedan. A jig member 114 having the same structure as the jig member 113 is provided at the other end of the arm 104, and this jig member 114 receives, for example, a side body for a hard top of the A-car type. These jig members 113 and 114 are formed so that the shapes of their clamp claws 111 and guide surfaces 106 match the corresponding side bodies. Further, these jig members 113 and 114 are switched by rotating the arm 104 by 180 degrees. Each of the fixtures 101 holds the lower part of the side body 1B, and has a bracket 120 fixed to the base plate 46. A central portion of an arm 122 is rotatably supported at the tip of this bracket 120 via a pin 121. This arm 122 is rotated by a motor (not shown) and is positioned and locked at a predetermined position.
A guide surface 123 is formed at one end of the arm 122, and a pair of cylinders 124 and 125 are swingably supported. A pair of clamp claws 126 and 127 are rotatably supported at one end of the arm 122, and these clamp claws 126 and 127 are connected to the cylinders 124 and 1.
The tips of piston rods 128 and 129 of 25 are connected to each other, and when the cylinders 124 and 125 operate, the clamp claws 126 and 127 rotate, and the side body 1B
It can take a clamp position where the lower part of the holder is clamped and an unclamp position.

The aforementioned cylinders 124, 125 and unclamp claw 12
6, 127 as a whole constitutes a jig member 130 for receiving, for example, a side body for an A-car type sedan. Arm 12
A jig member 131 having the same structure as the jig member 130 is provided at the other end of the jig member 130, and this jig member 131 receives, for example, a side body for an A-type hard top. These jig members 130 and 131 are formed so that the shapes of clamp claws 126 and 127 match the corresponding side bodies. Further, these jig members 130 and 131 are switched by rotating the arm 122 by 180 degrees. At the top and bottom of the base plate 47 when it is in the second position, that is, on the other side of the rotating base 45, there are a plurality of fixtures (corresponding to the fixture 100 shown in the figure) for, for example, the B car type. ) and a fixture 135 are provided. Each fixture 135 has the same dimensions and clamp claw shape as the fixtures 100 and 101.
Since the structure is the same except that it is modified to fit the vehicle type, detailed explanation will be omitted. As shown in FIG. 2, a receiving post 161 as a positioning means is provided on the floor surface 1 below the shuttle bar 2 between the side body and the assembly mechanism 10.
The receiving post 161 has a plurality of cylinders 162 erected on the floor 1, as shown in detail in FIG. A horizontal plate 164 is fixed to the tips of the piston rods 163 of these cylinders 162, and a plurality of brackets 1 are attached to both edges of the plate 164, which are spaced apart from each other.
65 are erected. A holder 167 is rotatably supported on the upper part of each bracket 165 via a pin 166. The holder 167 has a pair of arms 168 and 169 spaced apart from each other by 90 degrees. The arm 168 is, for example, A
The arm 169 supports the floor F for vehicle type B from below, and the arm 169 supports the floor F for vehicle type B from below. A cylinder 170 is swingably supported by each bracket 165, and the tip of a piston rod 171 of this cylinder 170 is connected to a holder 167.

Then, due to the operation of the cylinder 170, the arm 168,
169 positions are switched. Although only one side of the shuttle bar 2 is shown in FIGS. 2 and 3, a pair of outer vertical columns 191 are erected on both sides of the shuttle bar 2, and these outer vertical columns 191 and the shuttle bar 2 are connected to each other. 2 and a pair of inner vertical columns 19 respectively.
2 are erected.

A pair of side bolsters 193 connect the central portions of the outer vertical columns 191 facing each other with the shuttle bar 2 in between, and are respectively fixed to the upper ends of the facing inner vertical columns 192.
93 has two pairs of front and rear bolsters 194 and an outer vertical column 19.
1.

Vertical posts 195 are placed on each side bolster 193.
The upper ends of these vertical posts 195 and the upper ends of the outer vertical columns 191 are connected by side beams 196. Further, the upper ends of the outer vertical columns 191 are bridged by outer front and rear beams 197, and the upper ends of the vertical posts 195 are bridged by inner front and rear beams 198. The aforementioned outer and inner vertical columns 191, 19
2. The side bolsters 193, front and rear bolsters 194, vertical posts 195, side beams 196, and outer and inner front and rear beams 197 and 198 constitute a machine frame 199 as a whole. A pair of side body assembly mechanisms 10 are mounted on the machine frame 199.
A pair of side body carrying means 211 are attached correspondingly. Each side body carrying means 211 is the ninth,
As shown in detail in FIG. 10, beams 212 are connected to the side bolsters 193 and parallel to the front and rear bolsters 194.
A beam 213 is connected to the outer front and rear bolsters 194 and parallel to the side bolsters 193, and the tips of these beams 212 and 213 are connected to each other.
A pair of support beams 214 and 215 bridging between the outer and inner front and rear beams 197 and 198 are each provided with a bracket 21.
6 and 217 are fixed, and the upper ends of a pair of vertical guide posts 218 and 219 whose lower ends are fixed to the connecting portions of the beams 212 and 213 are fixed. Bearings 220, 221 are fixed on the brackets 216, 217, and a rotating shaft 224 has a pair of sprocket wheels 222, 223 attached to the bearings 220, 221.
is rotatably supported. An air motor 226 is attached to the support beam 215 via a bracket 225, and an output shaft 227 of this air motor 226 is connected to a rotating shaft 224 via a coupling 228.
26 rotates the rotating shaft 224. A horizontal rectangular frame 231 is provided between the guide posts 218 and 219, and vertical guide frames 232 and 233 are attached to the front and rear ends of this rectangular frame 231, respectively. Guide frame 232,
Guide rollers 234 and 2 are provided at the upper and lower ends of the guide posts 233 and roll on the inner surfaces and both side surfaces of the guide posts 218 and 219.
35 are rotatably supported. The rectangular frame 231 and the guide frames 232, 233 constitute a lifting platform 236 as a whole. Sprocket wheels 239 and 240 are rotatably supported at the lower ends of the guide posts 218 and 219 via brackets 237 and 238, respectively, and between these sprocket wheels 239 and 240 and the sprocket wheels 222 and 223. Endless chains 241 and 242 are stretched between the two. A lifting platform 23 is located in the middle of these chains 241 and 242.
6, and as a result, when the chains 241 and 242 run due to the operation of the air motor 226, the lifting platform 236
moves up and down while being guided by guide posts 218 and 219. On the lower surface of the rectangular frame 231, a pair of guide rails 251 and 252 parallel to the side bolster 193 are attached to the bracket 2.
53, 254. A horizontal moving table 255 is arranged below the guide rails 251 and 252, and this moving table 255 has brackets 256 and 257.
It has rollers 258, 259 that are attached through the guide rails 251, 252 and roll on the upper, lower and side surfaces of the guide rails 251, 252, and can run along the guide rails 251, 252 by these rollers 258, 259. be. An air motor 260 is attached to the lower surface of the outer end of the rectangular frame 231, and a sprocket wheel 262 is attached to its output shaft 261. In addition, the rectangular frame 231
A sprocket wheel 264 is rotatably supported on the lower surface of the inner end of the sprocket via a bracket 263, and this sprocket wheel 264 and the sprocket wheel 262
An endless chain 265 is spanned between.
The middle of this chain 265 is connected to the moving table 255, and when the air motor 260 is operated and the chain 265 travels, the moving table 255 is connected to the guide rails 251, 2.
The robot approaches and moves away from the shuttle bar 12 while being guided by the shuttle bar 52. A cylinder 267 is swingably supported on the movable base 255 via a bracket 266, and the tip of a piston rod 268 of this cylinder 267 is connected to a hanger claw 269 that is swingably supported on the movable base 255.
67 causes the hanger claw 269 to hook onto or detach from the side body 1B. In FIG. 2, 281 is a hanger provided above the shuttle bar 12, and a side body 1B is hooked onto an arm 282 of this hanger 281. Then, this side body 1B is attached to the side body 1 assembly mechanism 10 by the hanger 281.
It is transported to a predetermined position in between. The explanation so far has been about the side body assembly mechanism 10 provided on the left side of the shuttle bar 12 in FIG. Since it is the same as the assembly mechanism 10, illustration and detailed explanation will be omitted. Furthermore, as shown in FIG. 2, there are a plurality of brackets 29 on the floor surface 1 between the inner vertical columns 192.
A side body support 292 is provided at the upper end of each bracket 291. Each side body one receiver 2
92 is the bracket 2 as shown in detail in FIGS. 11 and 12.
91 has a support block 294 that is swingably supported via a pin 293, and a cylinder 2 that is swingably supported by the bracket 291 is attached to the support block 294.
The tips of 95 piston rods 296 are connected.
The plate 2 is connected to the support block 294 via a pin 297.
08 is swingably supported, and this plate 298 has a
Receiving seats 299, 300 for car type and B car type are attached. Reference numeral 301 denotes a switching cylinder that is swingably supported by the support block 294. The tip of the piston rod 302 of this cylinder 301 is connected to the plate 298, and when the cylinder 301 operates, the switching cylinder
8 swings, and the receiving seats 299 and 300 are switched.

In FIG. 13, the inner vertical columns 192 are bridged by a plurality of beams 311, and the side bolsters 192 are bridged by a plurality of beams 311.
93 are also bridged by a plurality of beams 312.
A receiving block 313 is fixed to the lower surface of each beam 312, and a guide rod 314 parallel to the side bolster 193 bridges the gap between the receiving block 313 and the beam 311. A simple welding robot 315 serving as a welding means is slidably supported on each guide rod 314, and each welding robot 315 has a welding gun 316.
In order to avoid complexity, one of the welding robots 315 is shown in the drawing by a solid line, and the others are shown by imaginary lines or omitted.
Each welding robot 315 is connected to the tip of a piston rod 318 of a moving cylinder 317 connected to a beam 311, and when this cylinder 317 is operated, the welding robot 315 is guided by a guide rod 314 and moves. Control of each welding robot is carried out in accordance with the car type and type, and information on the car type and type can be obtained from the central control room of the assembly line or by detecting the car type and type. In FIG. 3, 331 is a cowl assembly carrying means, and this cowl assembly carrying means 33
1 is a side bolster 193 attached to the front and rear bolsters 194 on the outside and inside, as shown in detail in FIGS. 14 and 15.
The chain 3 is supported by a rail 332 parallel to the
A movable platform 33 that moves along a rail 332 by a
It has 4.

A vertical cylinder 335 is fixed downward to the movable table 334, and a frame 338 is attached to the tip of a piston rod 336 of this cylinder 335. 339 is frame 33
The guide rods 339 are a pair of guide rods 339 erected on the 8th axis, and these guide rods 339 pass through the moving 1Z moving base 334.

A horizontal cylinder 340 is attached to the frame 338, and a fork 342 is fixed to the tip of a piston rod 341 of this cylinder 340. 343 is Folk 34
2, and this guide rod 34
3 passes through the frame 338.

A rotating plate 344 is rotatably supported by the fork 342, and this rotating plate 344 is rotated by a motor 345 fixed to the fork 342. Two pairs of brackets 346 are fixed to one side of the rotating plate 344, and a cylinder 347 is supported on each of these brackets 346 so as to be freely swingable. Reference numeral 348 denotes a clamp pawl that is swingably supported by each bracket 346. The tip of a piston rod 349 of a cylinder 347 is connected to this clamp pawl 348, and when the cylinder 347 is operated, the clamp pawl 348 moves to the tip of the bracket 346. The cowl assembly C is held between the two surfaces.

The aforementioned bracket 346, cylinder 347, and clamp claw 348 collectively constitute a holding member 350 that holds, for example, a cowl assembly C of an A-car type. A holding member 351 having the same structure as the holding member 350 is provided on the other side of the rotary plate 344, and this holding member 351 holds, for example, a cowl assembly for a B car type. And these holding members 350, 35
Reference numeral 1 constitutes a cowl assembly support that is switched by rotating a rotary plate 344 by 180 degrees by the operation of a motor 345. In Figure 3, 371
is a rear waist carrying means, and this rear waist carrying means 371 moves a moving platform 373 provided between a pair of curved rails 372 attached to a side bolster 193, as shown in FIGS. have.

A pair of brackets 374 are attached to the upper surface of the moving table 373, and each bracket 374 has a rotating shaft 376 having rollers 375 that roll on rails 372 on both sides.
is held rotatably. 377 is bracket 37
The rotation of this motor 371 is transmitted to the rotating shaft 376 via gears 378a and 378b.

Further, a pair of brackets 379 are attached to the upper surface of the moving table 373, and these brackets 379 have a rotating shaft 3 having a lip 380 that rolls on the rail 372 on both sides.
81 is rotatably supported. Then, the moving table 37
3 moves along the rail 372 by rotation of a motor 377. A vertical cylinder 382 is fixed to the movable table 373, and a fork 384 is attached to the tip of a piston rod 383 of the cylinder 382. 385 is a pair of guide rods installed on the fork 384,
These guide rods 385 pass through the carriage 373.

A rotary plate 386 is rotatably supported by the fork 384, and this rotary plate 386 is rotated by a motor 387 attached to the fork 384. Two pairs of brackets 388 are fixed to one side of the rotating plate 386, and each bracket 388 has a guide surface 389 at its tip.
has. A cylinder 390 and a clamp claw 391 are swingably supported on each bracket 388, and a piston rod 392 of each cylinder 390 is supported on each clamp claw 391.
The tips of the two are connected. When the cylinder 390 operates, the clamp claw 391 clamps the rear waist R between the clamp claw 391 and the guide surface 389. The aforementioned bracket 388, cylinder 390, and clamp claw 391 collectively constitute a holding member 393 that holds the rear waist R for, for example, an A-type vehicle. A holding member 394 having the same structure as the holding member 393 is provided on the other side of the rotating plate 386, and this holding member 394 holds, for example, the rear waist of a B car type. These holding members 393 and 394 constitute a rear waist support that is switched by rotating the rotary plate 386 by 180 degrees through the operation of the motor 387. In FIG. 3, 411 is a rear upper panel carrying means, and this rear upper panel carrying means 411 is the 18th, 1st
As shown in FIG. 9, it has a frame 412 installed on the floor 1 between the bases 11, and a vertical cylinder 413 is fixed to this frame 412.

An elevating plate 415 is attached to the tip of the piston rod 414 of this cylinder 413, and a pair of guide rods 41 passing through the frame 412 are attached to the elevating plate 415.
6 is installed. A bracket 417 is attached to the upper surface of the lifting plate 415.
A rotation block 419 is rotatably connected to 17 via a pin 418. A bracket 420 is fixed to the rotation block 419, and the tip of a piston rod 423 of a cylinder 422, which is swingably supported by a bracket 421 attached to an elevating plate 415, is connected to the bracket 420, and the cylinder 422 is operated. By doing so, the rotation block 419 rotates 90 degrees around the pin 418.
Rotate degrees. A rotary table 424 is rotatably supported on the rotary block 419, and this rotary table 424 is connected to the rotary block 419.
It is rotated by a motor 425 attached to 19.
A pair of cylinders 426 are swingably supported at one end of the rotary table 424, and a guide surface 427 is formed on the upper surface of the one end side of the rotary table 424. A clamp pawl 428 is swingably supported at one end of the rotary table 424, and the tip of a piston rod 429 of the cylinder 426 is connected to the clamp pawl 428. And cylinder 42
6 is operated, the rear upper panel U is held between the clamp claw 428 and the guide surface 427. The aforementioned cylinder 426, clamp claw 428, and guide surface 427
As a whole constitutes a holding member 430 that holds a rear upper panel U for, for example, a car type A. A holding member 431 having a structure similar to that of the holding member 430 is also provided on the other end side of the rotary table 424, and this holding member 431 holds, for example, a rear upper panel for a B car type. These holding members 430 and 431 are attached to the motor 4.
25 constitutes a rear upper panel support that can be switched by rotating the rotary table 424 by 180 degrees. Next, the operation of the first embodiment of the present invention will be explained.

First, when the floor F placed on the shuttle bar 12 and the rear upper panel U are being conveyed in the direction of the arrow in FIG. 1 by the forward movement of the shuttle bar 12, the following occurs.

The side body 1B is transported by the hanger 281 and stopped between the movable tables 255. At this time, the side body B is hooked onto the arm 282 of the hanger 281 and hangs down therefrom as shown in FIG. Moreover, at this time, the elevating table 236 is stopped at the highest position. next,
Air motor 260 is operated to rotate output shaft 261 and sprocket wheel 262. This results in chain 26
5 runs, and the moving platform 255 moves along the guide rails 251, 25.
2 to approach the hanger 281. Then, when the moving table 255 moves to a predetermined position, it stops moving. Next, the cylinder 267 is actuated to cause the piston rod 268 to protrude. As a result, the hanger claw 269 swings counterclockwise in FIG.
The side body 1B is caught by the hanger claw 269 and detached from the arm 282 of the hanger 281. In this way, the side body B is moved from the hanger 281 to the moving table 255.
will be handed over to. At this time, the side body 1B hangs down from the hanger claw 269 due to its own weight. Next, the air motor 260 is operated to rotate the output shaft 261 and sprocket wheel 262 in the opposite direction to that described above. As a result, the chain 265 runs, and the moving table 255 moves away from the hanger 281 while supporting the side body 1B while being guided by the guide rails 251 and 252. Then, the moving table 255 is placed at a predetermined position (the position shown by the solid line in FIG. 9).
When it moves, it stops moving. Next, the air motor 226 is operated to rotate its output shaft 227. The output shaft 227 is rotated by a coupling 228 and a rotating shaft 224.
, are transmitted to the chains 241, 242 via the sprocket wheels 222, 223, and the chains 241, 242
run. By running chains 241 and 242,
The elevating table 236 descends while being guided by the guide posts 218 and 219. At this time, the side body 1B is supported by the moving table 255. Next, the shuttle bar 2 moves to its forward limit and stops its movement. As a result, the floor F is carried between the side body assembling mechanisms 10. At this time, the elevating table 236 also reaches a predetermined height and stops its descent. The piston rod 296 of the piston rod 296 protrudes, and as a result, the plate 298 stands upright as shown by the solid line in FIG. is adjusted. Next, the cylinder 162 of the receiving post 161 is operated, and its piston rod 163 is projected. As a result, the plate 164 is raised, and the arm 168 moves up the floor F, which was placed on the shuttle bar 12. The frame 14 of each side body assembling mechanism 10 is located at the retract limit as shown in FIG. The motor 16 of the attachment mechanism 10 is activated and the output shaft 17 rotates.The rotation of the output shaft 17 is transmitted to the pinion 26 fixed to the rotating shaft 25, causing the pinion 26 to rotate.The rotational movement of the pinion 26 is easy. 27, it is converted into linear motion.As a result,
The frame 14 includes a slide plate 13 and slide legs 15
approach the floor F above the shuttle bar 12 while making sliding contact with the In addition, rear upper panel carrying means 411
is the piston rod 414 of the cylinder 413, 422
, 423 are both retracted and are in the state shown in FIG. Simultaneously with the operation of the cylinder 162 of the receiving post 161, the cylinder 4 of the rear upper panel carrying means 411
13 is also activated, causing its piston rod 414 to protrude. Therefore, the rotary table 424 rises, and the rear upper panel U on the shuttle bar 12 moves onto the guide surface 427.
Next, actuate the cylinder 426 to release its piston rod 42.
9 is projected, the clamp claw 428 is swung, and the rear upper panel U is held between the clamp claw 428 and the guide surface 427. When the rotary table 424 rises to a predetermined height, the operation of the cylinder 413 is stopped. Said frame 1
4 advances to a predetermined position, that is, a position where the fixtures 100, 101 of the rotating base 45 can grip the side body B, the motor 16 stops and the frame 14 temporarily stops. Next, the cylinder 108 is actuated to retract the piston rod 109 and the clamp base 107 is swung to the position shown by the solid line in FIG.
0 to project the piston rod 112 and swing the clamp claw 111 from the unclamp position to the clamp position (the position shown by the solid line in FIG. 7). As a result, the clamp claw 111 clamps the upper part of the side body 1B together with the guide surface 106. At this time, the upper outer surface of the side body B comes into contact with the guide surface 106 of the clamp base 107 and is precisely positioned and fixed. At the same time, the cylinder 124,
125 also operates to project piston rods 128, 129 and swing clamp claws 126, 127 from the unclamp position to the clamp position. As a result, clamp claw 1
26 and 127 sandwich the lower part of the side body 1B. At this time, the lower outer surface of the side body B comes into contact with the guide surface 123 of the arm 122 and is precisely positioned and fixed. In short,
The cylinder 267 is actuated to retract the piston rod 268 and the hanger claw 269 is released from the side body 1B. In this way, the side body 1B is transferred from the moving table 255 to the fixtures 100 and 101. Next, the cylinder 295 of the side body receiver 292 is activated, and its piston rod 296 is retracted. As a result, the support block 294, plate 298, and seats 299, 300 swing together around pin 293 to the position shown in phantom lines in FIG. As a result, as will be described later, even if the frame 14 moves further forward, the side body support 292
Since it is located in the space between the frame 14 and the fixture 101, it does not interfere with the side body assembly mechanism 10. Next, in order to avoid interference between the rotating base 45 and the side body loading means 211, the air motor 226 is operated to rotate its output shaft 227 in the opposite direction to that described above. As a result, the chains 241 and 242 travel, and the lifting platform 236 rises to its original position while being guided by the guide posts 218 and 219. Next, the motor 16 of each side body assembly mechanism 10 is operated again to move the frame 14 forward. While the frame 14 is moving forward again, the movable table 334 of the cowl assembly carrying means 331 holds the cowl assembly C between its clamp claw 348 and bracket 346 and moves it onto the rail 332 with the traveling chain 333. It moves to a predetermined position, that is, a position directly above the floor F. On the other hand, rear waist carrying means 3
The moving table 373 of 71 moves along the rail 372 to a predetermined position, that is, a position directly above the floor F, by the rotation of the motor 377 while holding the rear waist R between its clamp claw 391 and the guide surface 389 of the bracket 388. I'll come. Floor F is the arm 168 of the receiving post 161
When the cylinder 162 is raised to a predetermined height and positioned at a predetermined position while being supported from below by the cylinder 162, the operation of the cylinder 162 is stopped. At this time, the shuttle bar 12 is retreated to its original position. Also, at this time, the frame 14 reaches its forward limit and the operation of the motor 16 is stopped. At this time,
The stoppers 28a of the frame 14 come into contact with the shock absorbers 28, respectively, to cushion the shock when the frame 14 is stopped. Next, the locking device 29 locks the frame 1.
4 is locked to the base 11 at the forward limit. At this time, the side body 1B held by the fixtures 100 and 101 is positioned and set at a normal position with respect to the floor F. Next, the cylinder 422 of the rear upper panel carrying means 411 is operated, and the rotation block 419 and the rotation table 424 are rotated 90 degrees counterclockwise in FIG. 18 around the pin 418.
Rotate the rotation block 419 upright. As a result, the rear upper panel U is positioned and set at a normal position with respect to the floor F side body 1B. The cylinder 3 of the cowl assembly carrying means 331 has reached the predetermined position.
40 is actuated simultaneously with the actuation of the cylinder 422,
The piston rod 341 protrudes. Therefore, the rotary plate 344 holding the cowl assembly C approaches the floor F, and the cowl assembly C moves to the position shown by the imaginary line in FIG. Cylinder 335 is then actuated and its piston rod 336 protrudes. As a result, the cowl assembly C is lowered and positioned at the normal position with respect to the floor F1 side body B as shown by the imaginary line in FIG. Furthermore, the cylinder 382 of the rear waist carrying means 371 that has reached a predetermined position operates simultaneously with the operation of the cylinder 335, and its piston rod 383 protrudes. As a result, the rear waist R is lowered and positioned at a normal position relative to the floor F1 and the side body B. Next, the welding robot 315 spot-welds the floor F1, side body B1, rear upper panel U1, rear mount R, and cowl assembly C at a plurality of predetermined locations to temporarily join them together. In this way, when the installation of the side body B1 rear upper panel U, rear waist R, and cowl assembly C to the floor F is completed, the cylinders 108, 110, 124,
125 to protrude the piston rod 109 and retract the piston rods 112, 128, 129, and swing the clamp claws 111, 126, 127 from the clamp position to the unclamp position.
1, 126 and 127 are released from being held against the side body 1B. In addition, the cylinders 426, 390, 347 of the rear upper panel carrying means 411, the rear waist carrying means 371, and the cowl assembly carrying means 331 are also operated to retract their piston rods 429, 392, 349, and the rear upper panel carrying means 371 and cowl assembly carrying means 331 are operated. Clamp claws 428, 3 for panel U1 rear waist R and cowl assembly C
91 and 348 are released. Next, the cylinders 413 and 422 of the rear upper panel carrying means 411
is activated, the piston rods 414 and 423 are retracted, and the rotating block 419 and rotating table 424 return to their original positions. At the same time, the cylinder 382 of the rear waist carrying means 371 is actuated to retract the piston rod 383, and the motor 377 is also operated, so that the rear waist carrying means 371 returns to the standby position for receiving the rear waist R. On the other hand, the cylinders 335 and 340 of the cowl assembly carrying means 331 also operate, and the piston rod 336
, 341 are retracted, the chain 333 runs in the opposite direction to that described above, and the cowl assembly carrying means 331 returns to the standby position for receiving the cowl assembly C. Further, the motor 16 of each side body assembly mechanism 10 also rotates in the opposite direction to that described above, and the frame 14 returns to the backward limit shown by the solid line in FIG. 4. Next, the cylinder 162 of the receiving post 161 is operated to retract its piston rod 163, and the floor F is transferred onto the shuttle bar 12. Next, the shuttle bar 12 moves forward and carries out the installed floor F to the next stage, while carrying a new floor F between the side body assembly mechanisms 10. At this time, the cylinder 295 of the side body receiver 292 operates, and its piston rod 296 protrudes, and the plate 298 and the receiver seat 29
9,300 stand upright. As a result, the strike plate 299,3
00 returns to the standby position for receiving side body 1B. By repeating the above cycle, the side body 1B, rear upper panel U, and rear waist R1 are placed on the floor F of car type A.
I am going to install the cowl assembly C.
When a car-shaped floor is brought in, a set of side bodies is transferred from one for car type A to one for car type B based on a signal from the car type detection means installed in front of this device or a signal from the computer in the central control room. Switching of the fixture of the attaching mechanism 10, switching of the holding members 430, 431 of the rear upper panel carrying means 411, rear waist carrying means 371
Without switching the holding members 393, 394 of the cow. The holding members 350, 351 of the Lua assembly carrying means 331, the arms 168, 169 of the receiving post 161, and the receiving seats 299, 300 of the side body receiver 292 are changed.

First, to switch the fixture of the side body assembly mechanism 10, when the frame 14 is at the backward limit, the cylinder 83 of each locking means 80, 81 is actuated to retract its piston rod 85, and the locking block is activated. The stopper block 95 and the plate 94 are released from being held by the plates 73 and 74. Next, the air motor 55 is operated to rotate the rotating base 45 from the first position around the axes of the rotating shafts 34 and 35. At this time, since the frame 14 is located at the backward limit, the rotating base 45 does not interfere with surrounding equipment such as the welding robot. Rotating base 45
When it rotates 180 degrees and reaches the second position, the tips of the stopper plates 65, 66 touch the rubbers 71, 7 of the buffers 67, 68.
2, and the rotation of the rotating base 45 stops. At this time, the impact when the rotating base 45 stops rotating is alleviated by the rubbers 71 and 72. Next, each locking means 80, 81 again
The cylinder 83 is actuated to cause the piston rod 85 to protrude. As a result, the stopper plotter 95 clamps the lock blocks 73 and 74 together with the plate 94.
Rotation base 45 is restricted to rotate at the second position. In this way, the base plate 47 to which the fixture 135 for the B car type is attached faces the shuttle bar 12, and the base plate 46 to which the A car type fixtures 100, 101 are attached faces the opposite side of the shuttle bar 12.
In addition, the holding member 4 of the rear upper panel carrying means 411
Switching between 30 and 431 is performed by operating the motor 425 and rotating the rotary table 424 by 180 degrees. In addition, the holding members 393 and 394 of the rear waist carrying means 371 are switched by operating the motor 387 and rotating the rotating plate 386.
The holding members 350, 351 of the cowl assembly carrying means 331 are rotated 180 degrees.
(by moving the 3 motors 345 and rotating the rotating plate 34)
This is done by rotating 4 by 180 degrees. The arms 168 and 169 of the receiving post 161 are switched between the cylinder 1
70 to project the piston rod 171 and rotate the holder 167 around the pin 166 by 90 degrees. Receiver seat 299 of side body receiver 292,
Switching of the cylinder 300 is performed by operating the cylinder 301 and swinging the plate 298. The operation after switching to the B vehicle type in this manner is the same as described above.
Additionally, if the vehicle type is changed from a sedan to a hardtop or from a hardtop to a sedan while assembling the A or B car type, the holding member 430 of the rear upper panel carrying means 411 will , 431. Holding members 393, 394 of rear waist carrying means 371, holding members 350, 351 of cowl assembly carrying means 331
Since it is not necessary to change the arms 168, 169 of the receiving post 161 and the receiving seats 299, 300 of the side body holder 292, only the jig members of the side body 1 assembling mechanism 10 are changed.

That is, the arms 104 and 122 are moved by the motor to 18
Rotates 0 degrees and moves from jig members 100 and 101 to jig member 11
4,131. In this embodiment, the rotating base 45 is rotated to accommodate changes in the vehicle type, and the arms 104 and 122 are rotated to accommodate changes in the vehicle type. The rotation of the arms 104 and 122 may correspond to a change in the vehicle type.Furthermore, the rotation of the arms 104 and 122 may correspond to a change in car type from the sedan type of the A car type to the hard top type of the B car type, for example, by the rotation of the rotation base 45. , it may be adapted to correspond to changes from the hard top system of car type A to the hard top system of car type B, and from the hard top system of car type B to the sedan type of car type B.

20 to 28 are diagrams showing a second embodiment of the present invention.

First, to explain the structure, in FIGS. 20, 21, and 22, 601 is a base, and above the base 601 is a shuttle bar as a floor conveyance means that reciprocates to convey the floor F in the direction of the arrow. 1 602 is provided. Side body assembly mechanisms 603 are installed on the bases 601 on both sides of the shuttle bar 602, respectively. Each side body assembly mechanism 603 has a machine frame 604,
This machine frame 604 has four vertical columns 605 erected on the base 601 and three columns connecting the outer vertical columns 605.
One stage of front and rear bolsters 606 connecting the upper ends of the stages and the inner vertical columns 605;
It is composed of a book side bolster 607.
As shown in FIG. 23, stoppers 608 and 609 are provided at the lower end of the inner vertical column 605, respectively. 23, 24, and 25, reference numerals 621 and 622 indicate a pair of support blocks disposed on the base 601, and these support blocks 621 and 622 have shafts 623 and 624 as axes. support arm 625,
626 is swingably supported. 627 is a pivot base as a movable support, and this pivot base 62
7 is fixed to the support arms 625, 626.

A balance cylinder 631 is swingably supported by a bracket 632 fixed to a base 601 via a pin 633, and the tip of a piston rod 634 of this balance cylinder 631 is attached to a bracket 635 fixed to a pivot base 627. They are connected via a pin 636.

This balance cylinder 631 is connected to the pivot base 6
27 gives the pivot base 627 a force that almost balances the rocking force due to its own weight. The pivot base 627 has a pair of pillars 637 and 638 erected at its front and rear ends. Brackets 639 and 640 are fixed to the inner vertical columns 605, respectively, and these brackets 63
9 and 640 respectively support one driving cylinder 641 and 642 so as to be swingable. 1 drive cylinder each 641
, 642, and a pair of links 647, 648, 64 are fixed to the tips of the piston rods 643, 644, respectively.
The lower ends of 9,650 are rotatably connected to each other. The upper ends of the links 647 and 649 are connected to the stopper 608.
, 609, and the links 648, 650
The upper end (1) is rotatably connected to a stopper 651, 652 fixed to the upper end of each pillar 637, 638.The link 647, 648,649,6
50 changes between the position shown by the solid line and the position shown by the imaginary line in FIG.
and the expanded position 0 shown by the imaginary line. 661 is a bracket installed on the base 601, and this bracket 661 includes a stopper plate 662 that comes into contact with the pivot base 627 when it is in the upright position S to restrict the swinging of the pivot base 627. , a stopper plate 663 that comes into contact with the pivot base 627 to restrict the swinging of the pivot base 627 when the pivot base 627 is in the expanded position 0 is fixed.

Further, when the pivot base 627 is in the upright position S', the stoppers 651 are attached to the stoppers 608 and 609.
, 652 come into contact. In this way, the pivot base 627
When is in the upright position S, the swing is restricted at a total of four points, allowing precise positioning. Pillar 637, 63
Bearings 671 and 672 are fixed to the upper ends of 8, respectively.
These bearings 671, 672 have coaxial rotating shafts 673,
674 are each rotatably supported. 675 is a rotating base as a jig base provided between the pillars 637, 638, and this rotating base 675 is located between a pair of parallel base plates 676, 677 and these base plates 676, 677. It is composed of rectangular frames 678 that connect lines to each other.

Couplings 679 are provided at the front and rear ends of the rectangular frame 678, respectively.
, 680 are fixed, and these coupling rings 679, 6
The inner ends of the rotating shafts 673 and 674 are respectively fixed to 80. Therefore, the rotation base 675 is
73, 674, and are rotatably supported by the upper ends of the pillars 637, 638 of the pivot base 627 via bearings 671, 672. An air motor 702 is attached to the upper end of the pillar 637 via a bracket 701.
The output shaft 703 of this air motor 702 and the rotating shaft 67
It is coupled to the outer end of No. 3 via a coupling ring 704. Therefore, when the air motor 702 operates and its output shaft 703 rotates, the rotation of the output shaft 703 is transmitted to the rotation base 675 via the coupling 704 rotation shaft 673 and the coupling 679, and the rotation base 675 rotates the rotation shaft 673, 674 axis. Pillar 63
As shown in detail in FIG. 25, a rotary switching type electrical connector 706 is attached to the connector 8 via a bracket 705.
The outer end of the rotating shaft 674 is inserted into the electrical connector 706, and the electrical connection is switched by rotating the rotating shaft 674. 707 is a bearing 612 and an electrical connector 706
This is a rotary valve disposed on a rotating shaft 674 between the

Said electrical connector 706 and rotary valve 707
The electrical power and air supplied to the required locations are switched through wiring and piping (not shown) that pass through the rotating shaft 674 and reach the inside of the rotating base 675. By the way, the above air motor 7
Air pressure is supplied to the rotary base 67 as described above.
The rotation shaft 673 can be further penetrated through the piping leading to the interior of the rotary shaft 673, and the process can be carried out through this piping. The rotating base 675 is the second
As shown in detail in FIG. 4, the base plate 676 is in a first position facing the shuttle bar 602, and the rotating base 675 is rotated 180 degrees from this first position to the base plate 6.
77 rotates between a second position facing the shuttle bar 602, and this rotation is performed when the pivot base 627 moves to the expanded position 0 in order to avoid interference with surrounding equipment such as a simple welding robot, which will be described later. This is done when you are located in Pillar 6
At the upper end of 37, 638 are cylinders 723, 7 which are operated by pneumatic or hydraulic pressure via brackets 721, 722.
24 are attached to each. 725, 726 are guides attached to the brackets 721, 722, and the guides 725 have the cylinders 723, 724 attached thereto.
Lock pins 729 and 730 attached to the tips of piston rods 727 and 728, respectively, are slidably inserted.

Lock sleeves 731 are provided at both lower corners of the base plate 677 when the rotating base 675 is in the first position.
, 732 are fixed, respectively, and each locking sleeve 731
, 732 are formed with holes 733 into which the lock pins 729, 730 are inserted. Lock pins 729, 730 are installed in these lock sleeves 731, 732.
By inserting the rotation base 675, the rotation base 675 is positioned and locked at the first position. On the other hand, the rotating base 6 is placed in the second position.
Lock sleeves 735 and 736 are respectively fixed to both lower corners of the base plate 676 when the lock pins 75 are positioned, and holes 737 into which the lock pins 729 and 730 are inserted are formed in each of the lock sleeves 735 and 736. . By inserting the lock pins 729 and 730 into these lock sleeves 735 and 736,
Rotating base 675 is positioned and locked in the second position.
base plate 676 when located in the first position;
That is, as shown in FIG. 24, fixtures 751 and 752 are provided as a plurality of predetermined jigs for the A-car type at the upper and lower portions of one side of the rotating base 675. Each fixture 751 clamps the upper part of the side body 1B, and has a bracket 753 fixed to a base plate 676. A clamp base 756 having a guide surface 755 is rotatably supported on the bracket 753. The bracket 753 also has a cylinder 7.
57 is swingably supported, and the tip of a piston rod 758 of this cylinder 757 is connected to the ramp base 756, and when the cylinder 757 operates, the clamp base 756 rotates. clamp base 756
A cylinder 759 is swingably supported, and a clamp claw 760 is rotatably supported. The tip of the piston rod 761 of the cylinder 759 has a clamp claw 76
0, and by operating the cylinder 759, the ramp claw 760 can take a ramp position where the upper part of the side body 1B is clamped together with the guide surface 755, and an unclamping position. Each of the fixtures 752 holds the lower part of the side body 1B, and includes a guide bracket 763 having a guide surface 762 fixed to a base plate 676. A pair of cylinders 764 and 765 are swingably attached to the guide bracket 763. Supported. Reference numerals 766 and 767 designate a pair of gangway claws on which the guide bracket 763 is rotatably supported, and the tips of the piston rods 768 and 769 of the cylinders 764 and 765 are connected to these gangway claws 766 and 767, respectively. , 765 are operated, the clamp claws 766, 767 are rotated, and can take a clamp position where they clamp the lower part of the side body 1B and an unwrapping position.

base plate 677 when located in the second position;
That is, a plurality of fixtures for the B car type (corresponding to the fixture 751, not shown) and a fixture 768 are provided at the upper and lower parts of the other side of the rotating base 675. Each fixture 768 has the same structure as the fixtures 751 and 752 except that the dimensions and the shape of the clamp claw are modified to fit the B car type, so a detailed explanation will be omitted. A column 781 is erected on the base 601, and a support 782 is fixed on the column 781. A plurality of simple welding robots 783 are arranged on the support stand 782 as a plurality of welding means for welding the side part of the floor F and the side body 1B, and each welding robot 783 is a 24th welding robot.
As shown in the figure, it has a welding gun 784. On the other hand, the 21st
The support beam 7 is at the same height as the lower front and rear bolsters 606 that span between the inner vertical columns 605 as shown in the figure.
A plurality of simple welding robots 786 are attached to 85 as welding means for welding the side portion of the floor F and the side body B, and each welding robot 786 has a welding gun 787. In addition, welding robot 7 is included in the drawing to prevent complexity.
83 and 786 are each shown with solid lines, and the others are shown with imaginary lines showing only part of their outlines. 21st, 22nd, 26th,
In FIG. 27, a pair of beams 801 parallel to side bolsters 607 are fixed to middle and lower front and rear bolsters 606 that connect a pair of vertical columns 605 on the outside. In addition, front and rear bolsters 60 are provided in the middle and lower side bolsters 607 that connect the pair of vertical columns 605 on the front side and the pair of vertical columns 605 on the rear side, respectively.
Beams 802 parallel to 6 are fixed, and the tips of these beams 802 and the tips of the beams 801 are connected to each other. Reference numerals 803 and 804 denote a pair of vertical guide posts provided within the machine frame 604, and the lower end portions of each guide post 803 and 804 are fixed to the connecting portions of the beams 801 and 802.

A pair of support beams 805 and 806 bridging the upper front and rear bolsters 606 are provided with brackets 807 and 80, respectively.
8 is fixed, and the guide post 803
, 804 are fixed at their upper ends. Each bracket 807
, 808 are fixed to bearings 809, 810, and a rotating shaft 813 to which a pair of sprocket wheels 811, 812 are attached is rotatably supported by these bearings 809, 810. An air motor 815 is attached to the support beam 806 via a bracket 814, and the output shaft 816 of this air motor 815 is connected to a coupling 817.
The rotary shaft 813 is connected to the rotary shaft 813 through the air motor 815, and the rotary shaft 813 is rotated by the operation of the air motor 815. Guide post 803
, 804 is provided with a horizontal rectangular frame 831, and vertical guide frames 832, 804 are provided at the front and rear ends of this rectangular frame 831, respectively.
833 is installed. Guide rollers 834 and 835 that roll on the inner surfaces and both side surfaces of the guide posts 803 and 804 are rotatably supported at the upper and lower ends of the guide frames 832 and 833, respectively. The rectangular frame 831 and the guide frames 832, 833 constitute a lifting platform 836 as a whole. Sprocket wheels 839, 840 are rotatably supported at the lower ends of the guide posts 803, 804 via brackets 837, 838, respectively, and between these sprocket wheels 839, 840 and the sprocket wheels 811, 812. Endless chains 841 and 842 are stretched between the two. The middle portions of these chains 841 and 842 are connected to a lifting platform 836, and as a result, when the chains 841 and 842 travel due to the operation of the air motor 815, the lifting platform 836 moves up and down while being guided by the guide posts 803 and 804. A pair of guide rails 851 and 852 parallel to the side bolster 607 are attached to brackets 853 and 85 on the lower surface of the rectangular frame 831.
It is attached via 4. guide rail 851,
A horizontal moving table 855 is arranged below 852, and rollers 858, 859 that roll on the upper, lower and side surfaces of the guide rails 851, 852 are rotatably mounted on this moving table 855 via brackets 856, 857. is supported by An air motor 86 is installed on the lower surface of the outer end of the rectangular frame 831.
0 is fixed, and a sprocket wheel 862 is attached to the output shaft 861 of this air motor 860.
Additionally, a bracket 863 is provided on the lower surface of the inner end of the rectangular frame 831.
A sprocket wheel 864 is rotatably supported through the sprocket wheel 864, and an endless chain 865 is stretched between the sprocket wheel 864 and the sprocket wheel 862. A midway portion of this chain 865 is connected to the movable table 855, and as the air motor 860 is operated and the chain 865 travels, the movable table 855 approaches and moves away from the shuttle bar 602 while being guided by guide rails 851 and 852. A cylinder 882 is swingably supported on the moving base 855 via a bracket 881, and the tip of a piston rod 883 of this cylinder 882 is connected to a hanger claw 884 that is swingably supported on the moving base 855.
By the operation of the cylinder 882, the hanger claw 884 hooks the side body 1B or detaches from it. A cylinder 886 is swingably supported at the lower end of a bracket 885 attached to the lower surface of the moving table 855, and the tip of a piston rod 887 of this cylinder 886 is connected to a pusher block 888 that is swingably supported by the bracket 885. By the operation of the cylinder 886, the pusher block 888 pushes the outer surface of the side body 1B hooked on the hanger claw 884, causing the side body 1B to swing as shown in FIG. 27. This pusher block 888 has a cylinder 88 as shown in FIG.
9 is swingably supported, and the tip of a piston rod 890 of this cylinder 889 is connected to a clamp claw 891 swingably supported by a pusher block 888. When the cylinder 889 is operated, this clamp claw 891 is moved together with the pusher block 888 to the side body. Clamp or unclamp B. The aforementioned guide post 80
3,804, the elevating table 836 and the movable table 855 constitute a side body loading means 892 as a whole. Reference numeral 901 is a hanger provided above the shuttle bar 602, and a side body 1B is hooked onto the arm 902 of this hanger 901.

Then, this side body B is conveyed by the hanger 901 to a predetermined position between the side body assembling mechanisms 603. The foregoing explanation is based on the shuttle bar 60 in FIG.
Regarding the side body assembly mechanism 603 provided on the left side of the shuttle bar 1 602, the structure of the side body assembly mechanism 603 provided on the right side of the shuttle bar 1 602 is also similar to this side body assembly mechanism 603, so it is not shown in the figure. and detailed explanation will be omitted. In addition, similar to the first embodiment, the apparatus of this embodiment also includes a receiving post and a cowl assembly as positioning means for lifting and positioning the generally received floor F from the shuttle bar 602 at a predetermined position. A cowl assembly carrying means for carrying the cowl assembly and positioning it on the side body 1B positioned on the floor F, and a rear waist carrying means for carrying the rear waist and positioning it on the side body 1B positioned on the floor F are provided. Since this is just a configuration, illustration and detailed explanation will be omitted.
Next, the operation of the second embodiment of the present invention will be explained. First, as the shuttle bar 602 moves forward, the shuttle bar 602
When the floor F placed on the floor F is being conveyed in the direction of the arrow, the following occurs. The side body B is conveyed by the hanger 901 and stopped between the movable tables 855. At this time, the side body B is hooked onto the arm 902 of the hanger 901 and hangs down therefrom as shown in FIG. 27. Moreover, at this time, the elevating table 836 is stopped at the highest position. Next, the air motor 860 is operated to rotate the output shaft 861 and sprocket wheel 862. As a result, the chain 865 runs, and the moving table 85
5 moves closer to the hanger 901 while being guided by the guardrails 851 and 852. And moving platform 8
55 stops moving when it moves to a predetermined position.
Next, cylinder 882 is actuated to cause piston rod 883 to protrude. As a result, the hanger claw 884 swings counterclockwise in FIG. 27, and the side body B is caught by the hanger claw 884 and separated from the arm 902 of the hanger 901. In this way, the side body 1B is transferred from the hanger 901 to the moving table 855. At this time,
The side body B (hangs down from the hanger claw 884 due to its own weight). Next, the cylinder 886 is actuated to protrude the piston rod 887. As a result, the pusher block 888 swings counterclockwise in FIG. Press the outer surface of the side body 1B hooked on the claw 884 and swing it counterclockwise.As a result, the side body 1B swings from its hanging state to a predetermined angle around the upper end. Then, actuate the cylinder 889 to project the piston rod 890. As a result, the clamp claw 891 swings, and the clamp claw 891 and pusher block 888 clamp and lock the side body 1B.Next, The air motor 860 is operated and the output shaft 8
61 sprocket wheel 862 is rotated in the opposite direction to that described above. As a result, the chain 865 runs, and the moving table 855 moves away from the hanger 901 while supporting the inclined side body 1B while being guided by the guide rails 851 and 852. When the movable table 855 moves to a predetermined position (the position indicated by the solid line in FIG. 27), it stops moving. Next, the air motor 815 is operated to rotate its output shaft 816. The rotation of the output shaft 816 is transmitted to the chains 841, 842 via the coupling 817, the rotary shaft 813, and the sprocket wheels 811, 812, causing the chains 841, 842 to travel. chain 8
41 and 842, the lifting platform 836 descends while being guided by the guide posts 803 and 804. At this time, the side body 1B is supported by the movable table 855 while being tilted. When the shuttle bar 602 moves to its forward limit and stops to transport the floor F to a predetermined position, the elevating table 836 also reaches a predetermined height and the elevating table 836 stops. At this time, the side body B is located immediately in front of the rotation base 675. Next, as in the first embodiment, the receiving post is placed on the floor F.
from the shuttle bar 602 and lift it to a predetermined position. Next, the shuttle bar 602 retreats to its original position. Further, at this time, the pivot base 627 is located at the expanded position 0, as shown by the imaginary line in FIG. That is, the piston rod 6 of the 1 drive cylinder 641, 642
43,644 protrudes, links 647,648,649
, 650 are located at the positions indicated by imaginary lines (see FIG. 24).
Therefore, the pivot base 627 supports the shafts 623, 62.
4, and its bottom surface is in contact with a stopper plate 663. Next, Fixture 7
51 cylinder 757 is operated and the piston rod 758
The clamp base 756 is retracted to swing the clamp base 756 to the position shown by the solid line in FIG.
is swung from the unclamp position to the clamp position (the position shown by the solid line in FIG. 24). As a result, gangway claw 7
60 (the upper part of the side body 1B is held together with the guide surface 755. At this time, the upper outer surface of the side body 1B comes into contact with the guide surface 755 of the gangway base 756 and is precisely positioned and fixed. At the same time, the cylinders 764, 76
5 also operates to project the piston rods 768, 769 and swing the clamp claws 766, 767 from the unclamp position to the clamp position. As a result, the clamp claw 766
, 767 sandwich the lower part of the side body 1B. At this time, the lower outer surface of the side body 1B is connected to the guide bracket 763.
It comes into contact with the guide surface 762 and is precisely positioned and fixed.
Next, actuate the cylinder 882 to move the piston rod 883.
is retracted to remove the hanger claw 884 from the side body 1B. At the same time, cylinder 886 is actuated to retract piston rod 887 and pusher block 888 is activated.
Rotate clockwise to return to the original position. At the same time, the cylinder 889 is operated to move the piston rod 8.
90 and swings the clamp claw 891 to release the lock of the side body 1B. In this way, the side body 1B is moved from the moving table 855 to the fixtures 751, 752.
will be handed over to. Thereafter, the air motor 815 is operated to rotate its output shaft 816 in the opposite direction to that described above. As a result, the chains 841 and 842 travel, and the lifting platform 836 rises to its original position while being guided by the guide posts 803 and 804. Next, the piston rods 643 and 644 of the first drive cylinders 641 and 642 are retracted synchronously. As a result, the links 647, 648, and 649650 move from the positions shown by phantom lines in FIG. 24 to the positions shown by solid lines.
As a result, the pivot base 627 is connected to the shafts 623, 62.
4 as the center, it swings clockwise from the expanded position 0 shown by the imaginary line in FIG. 24 to the upright position S. When the pivot base 627 swings to the standing position S, the pivot base 627 comes into contact with the stopper plate 662, and the stopper plate 662
51 and 652 come into contact with stoppers 608 and 609.
In this way, since the rocking rule is established at a total of four points, the standing position S is precisely positioned. As a result, the side body B is correctly set on the floor F. Next, the first
As in the embodiment, the cowl assembly and rear waist are carried in by the cowl assembly carrying means and rear waist carrying means and positioned on the side body 1B positioned on the floor F. Next, welding robot 783,
786, the floor F1 side body, B1 cowl assembly, and rear waist, which are positioned respectively, are spot welded at a plurality of predetermined locations and temporarily joined. After completing the installation of side body 1B cowl assembly I barrier waist to floor F in this way, next
Operate the cylinders 757 and 759 to remove the piston rod 7.
58,761 to protrude and retract, gangway pawl 760
Release the grip on the side body 1B. At the same time, the cylinders 764 and 765 are operated to retract the piston rods 768 and 769, and the clamp claws 766 and 767 are retracted.
is swung from the clamp position to the unclamp position, and the grip of the clamp claws 766, 767 on the side body 1B is released. On the other hand, the cowl assembly carrying means and the rear waist carrying means also release the cowl assembly and rear waist from being held. Next, the receiving post delivers the floor F to the shuttle bus 602. After that, side body B1
The floor F to which the cowl assembly and rear waist are attached is carried out to the next process by the advancement of the shuttle bar 602. Next, the drive cylinders 641 and 642 are actuated to synchronously project the piston rods 643 and 644, thereby moving the links 647, 648, 649, and 650 from the positions shown in solid lines in FIG. 24 to the positions shown in phantom lines. As a result, the pivot base 627 swings counterclockwise around the shafts 623 and 624 from the upright position S shown by solid lines in FIG. 24 to the expanded position 0. At the same time, the cowl assembly carrying means and the rear waist carrying means are returned to the standby position for receiving the cowl assembly I8 rear waist. By repeating the above cycle, side bodies B, etc. are installed on the floor F of car type A. However, when the floor of car type B is brought in, the information from the car type detection means installed in front of this device is The fixtures are switched in the following manner by signals or signals from a computer in the central control room.

First, when the pivot base 627 is at the expanded position 0, the cylinders 723 and 724 are actuated to retract the piston rods 727 and 728, and the lock pins 729 and 730 are retracted.
is pulled out from the lock sleeves 731, 732, and the rotation restriction of the rotation base 675 is released. Next, the air motor 70
2 to rotate the rotating base 675 from the first position around the axes of the rotating shafts 673 and 674 via the coupling ring 704, the rotating shaft 673, and the coupling ring 679. At this time, the rotation arc of the rotation base 6r5 becomes a circle shown by the imaginary line in FIG. 21, but since the pivot base 627 is located at the expanded position 0, it does not interfere with surrounding equipment such as the welding robot. When the rotating base 675 rotates 180 degrees and reaches the second position, the air motor 702 stops operating and the rotating base 675 also stops rotating. Next, cylinder 7
23,724 and piston rod 727,728
and insert lock pins 729 and 730 into lock sleeves 735 and 736, respectively. As a result, rotation of the rotation base 675 is restricted to the second position. In this way, the base plate 677 to which the B vehicle type fixture 768 is attached faces the shuttle bar 602, and the base plate 676 to which the A vehicle type fixtures 751, 752 are attached faces the opposite side of the shuttle bar 602. And, Fixture 7 for this B car type
At step 68, the side bodies B and the like are attached to the floor F in the same manner as described above. In addition, it goes without saying that in cases where there are differences such as a sedan type and a hardtop type (well, if the shape of each fixture is taken into account, it can be handled in the same manner as before.

When switching between the A car type and B single type fixtures due to the reversal of the rotary base 675, the rotary valve 707 and the rotary connector 706 are linked to the reversal, and the air pressure that was previously supplied to the A car type fixtures 751 and 752 is changed. The piping and wiring can be automatically switched to supply electric power to the B vehicle type fixture 768, and there is no need to redo the piping and wiring when changing the fixture. In the first and second embodiments described above, the side body B is received with the rotating base 45, 675 standing substantially upright or tilted, but the rotating base 45, 675 is placed substantially horizontally to receive the side body 1 held substantially horizontally. You can do it like this.

In addition, in the first and second embodiments described above, the rotating bases 45 and 675 were plate-shaped, and fixtures for receiving the side bodies were provided on one side and the other side, respectively, but the rotating base was shaped like a triangular prism. , quadrangular prism shape...
A fixture for receiving the side body may be provided on each side of the rotary base. As described above, according to the present invention, a plurality of vehicle types and types can be assembled on one line. Also, by assembling and welding the floor, side body, cowl assembly, and rear waist at the same time, the precision of the car body as a box can be achieved at the same time.

[Brief explanation of the drawing]

1 to 19 show a first embodiment of the present invention, FIG. 1 is a schematic plan view thereof, FIG. 2 is a sectional view taken along the - arrow in FIG. Figure 4 is a side view of the side body assembly mechanism, Figure 5 is a front view of the side body assembly mechanism,
6 is a sectional view taken in the direction of the arrow in FIG. 5, FIG. 7 is an enlarged side view near the fixture, FIG. 8 is a side view near the receiving post, FIG. 9 is a side view of the side body carrying means, and FIG. 11 is a side view of the side body holder, and FIG.
Figure 3 is a side view of the vicinity of the welding robot, Figure 14 is a front view of the cowl assembly carrying means, and Figure 15 is the X in Figure 14.
V-XV arrow view, Figure 16 is a front view of the rear waist carrying means, Figure 17 is a XMF-X arrow view in Figure 16, Figure 18
The figure is a front view of the rear upper panel carrying means, FIG. 19 is a view taken along arrows XIX-XlX in FIG. 18, FIGS. 20 to 28 show a second embodiment of the present invention, and FIG. 21 is a sectional view taken along the line XXI-XXI in FIG. 20, FIG. 22 is a sectional view taken along the line XlXf-X in FIG. 21, FIG. 23 is a front view of the side body assembly mechanism, and FIG. Also, Fig. 24 is a sectional view taken along the XMV-XXlV arrow, Fig. 25 is a partially enlarged front view of the side body assembly mechanism, Fig. 26 is a front view of the side body carrying means, and Fig. 27 is the XXMF of Fig. 26. -XX
The cross-sectional view shown in the arrow direction, FIG. 28 is taken from XXlX-XlXI in FIG. 27.
It is a sectional view taken along the IX arrow. 2,602...Floor conveyance means, 45,675
...Jig base, 51,627...Movable support, 100,101,135,751,752,
768... Predetermined jig, 161... Positioning means, 211, 892... Side body carrying means, 331... Cowl assembly carrying means, 371・・・・・・Rear waist carrying means, 41
1... Rear upper panel carrying means, 315,
783,786... Welding means.

Claims (1)

[Scope of Claims] 1. A floor conveying means for carrying in a floor, a floor positioning means for positioning the carried floor, a side body carrying means for carrying in paired side bodies for each specification, and a plurality of surfaces. a base having a predetermined jig attached thereto to receive a side body of a predetermined specification on each side, and supporting the jig base so as to be rotatable and positionable so that the jig base is rotatably and positionably supported, and the jig base is rotatably and positionably supported. A parallel production type vehicle body assembly device comprising a side body positioning means having a movable support for moving and positioning a side body held on a jig, and a welding means for welding a floor and a side body. . 2. The parallel production type vehicle body assembly apparatus according to claim 1, wherein the jig is comprised of a plurality of jig members that can be switched according to a predetermined side body. 3. A floor conveying means for carrying in a floor, a floor positioning means for positioning the carried floor, a side body carrying means for carrying in paired side bodies for each specification, and a floor conveying means for carrying in a floor, and a side body carrying means for carrying in pairs of side bodies for each specification, and a jig base to which a predetermined jig for receiving a side body of predetermined specifications is attached; the jig base is rotatably and positionably supported and held by the jig toward the positioned floor; a side body positioning means having a movable support for moving and positioning the side body, and a cowl assembly support for switchably supporting cowl assemblies having different specifications, and supported by the cowl assembly support. The cowl assembly is carried in and the positioned floor is placed;
A cowl assembly carrying means for positioning on the side body, and a rear waist support for switchably supporting rear waists of different specifications, and the rear waist supported by the rear waist support is carried in to the positioned floor. A parallel production type vehicle body assembly apparatus comprising: a rear waist carrying means for positioning the side body, and a welding means for welding the positioned floor, side body, cowl assembly, and rear waist. 4. The parallel production type vehicle body assembly apparatus according to claim 3, wherein the jig is comprised of a plurality of jig members that can be switched according to a predetermined side body.