JPS5921827B2 - Automotive body assembly equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to an assembly apparatus for an automobile body.

An example of conventional automobile body assembly equipment is the
The one described in Japanese Patent No. 3-21542 is known.

This device consists of a moving frame that is supported by a traveling frame so that it can be raised and lowered, a pair of clampers that are supported horizontally at the bottom of the moving frame and can each hold one side body, and a cylinder that moves the clampers toward and away from each other. a pair of jig sides that are installed below the moving frame and move around a pivot; a guide device, a manipulator device, and a welding multi-gun that are attached to each jig side to receive and position the side bodies; It is equipped with a conveyor device that is installed between the food sides to carry in the floor, and an autoloader for the cowl top assembly and par shell shelf.

To position the side body on the floor using this device, lower the moving frame while holding the side body with the clamper, separate the clampers from each other using the cylinder, and then move the side body away from the clamper. After passing the receiver to the jig side, the jig side is raised and positioned on the floor.

On the other hand, the cowl top assembly and par shell shelf are positioned by rotational movement from the lateral direction.

However, in such conventional assembly equipment,
Since the clamper is supported at the bottom of the moving frame, the gap between the moving frame and the floor becomes narrow when the moving frame is lowered to its lowering limit, and the welding of each part, especially the cowl top assembly and par shell shelf, becomes narrower. It was necessary to attach the multi gun for 1 to the side of the jig.

For this reason, the jig side becomes heavy, and as a result, there is a problem in that a large power drive source is required to swing the jig side.

Another problem is that there are restrictions on where we can weld;
One.

This invention was made by focusing on the above-mentioned problem, and includes installing a machine frame on both sides of a positioning means for positioning the floor, and also having a side body assembly mechanism in which the side body is received from the banger on the machine frame. To solve the above-mentioned problem by attaching a movable side body carrying means to the banger and forming a wide space between the banger and the positioning means, and arranging the welding means attached to the machine frame in this space. With the goal.

This invention will be explained below based on the drawings.

1 to 19 are diagrams showing an embodiment of the present invention.

First, to explain the configuration, in Fig. 1.2.3, 1 is a floor surface, and above this floor surface 1 is a floor conveying means that primarily conveys the floor F in the direction of the arrow by reciprocating. A shuttleper 2 is provided.

Note that the fingers that receive the floor of the shuttleper 2 are not shown.

Side body assembly mechanisms 10 are installed on the floor surface 1 on both sides of the shuttleper 2, 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 shuttle bars 2 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 input shaft 19 of the reducer 18 installed on the base 11 are connected by a coupling 20.

21 and 22 are two pairs of bearings, and these bearings 21, 2
2 is connected to the output shaft 2 of the reducer 18 via the coupling 23.
Rotating shaft 2 parallel to shuttleper 2 connected to 4
5 is rotatably supported, and this rotating shaft 25 is rotated by the operation of a motor 16.

A pair of pinions 26 are fixed to the rotating shaft 25, and these pinions 26 mesh with a pair of racks 27 extending perpendicularly to the shuttleper 2 attached to the lower surface of the frame 14, so that the pinion 26 rotates. Then, the frame 14 moves toward and away from the shuttleper 2 while bringing the slide plate 13 and slide leg 15 into sliding contact.

Reference numeral 28 denotes two pairs of shock absorbers installed on the base 11, and these shock absorbers 28 are arranged at the forward limit where the frame 14 is closest to the shuttleper 2 and at the backward limit where the frame 14 is farthest from the shuttleper 2. A pair of stoppers 28 fixed to the lower surface of the odor frame 14
By abutting the frame 14, the impact when the frame 14 is stopped at its forward and backward limit is alleviated.

Reference numeral 29 denotes a pair of locking devices installed on the base 11, and the claws 29a of these locking devices 29 are connected to the frame L/-m i4.
When the frame 14 is at its forward movement limit, the frame 14 is locked 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 of the support frames 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, and this rotating base 45 is connected to a pair of parallel base plates 46 and 47, and these base plates 46.
47 and a rectangular frame 4 that connects the opposing peripheral edges to each other.
It consists of 8.

Couplings 49°5 are provided at the front and rear ends of the rectangular frame 48, respectively.
0 is fixed, and the inner ends of the rotating shafts 34 and 35 are fixed to these couplings 49 and 50, respectively.

Therefore, the rotation base 45 includes the frame 14, the support frame 30,
31 via rotary shafts 34, 35 and bearings 32, 33 so as to be rotatable.

Said frame 14 and support frame 30.31 together constitute a movable support 51.

An air motor 5 is connected to the support frame 31 via a bracket 54.
5 is attached, 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, this output shaft 5
7 is transmitted to the rotation base 45 via the coupling 58, the rotation shaft 35, and the coupling 50, and rotates the rotation base 45 around the axes of the rotation 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 shuttleper 2, and a first position where the rotating base 45 rotates 180 degrees from this first position so that the base plate 47 faces the shuttleper 2. a second position,
This rotation is performed when the frame 14 is at the retract limit in order to avoid interference with surrounding equipment such as a welding robot.

Two pairs of stopper plates 65 and 66 are attached to the upper and lower surfaces of the front and rear ends of the rotating base 45, respectively, and on the frame 14 directly below these stopper plates 65 and 66, there are plates that correspond to the tips of these stopper plates 65 and 66. Shock absorber 67
．． 68 is installed.

The shock absorbers 67 and 68 are connected to the case 69°70 and the case 69.
The rotating base 45 is rotated from the first position to the second position on these rubbers 7L72.
When the rotating base 45 rotates to the first position or from the second position to the first position, the tips of the stopper plates 65 and 66 come into contact with each other, thereby alleviating the impact when the rotating base 45 stops rotating.

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.

so and si are locking means attached to the support frames 30 and 31, respectively, for positioning and locking the rotating base 45 in the first or second position. It has a bracket 82 fixed to the outer surface of the support frames 30 and 31, and this bracket 82
A cylinder 83 is swingably supported 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 this first link 86 is connected to a second link 89 connected to the bracket 82 via a pin 88. 90.

A third link 91 has one end connected to the bracket 82 via a pin 92 and the other end connected to the center of the first link 86 via a pin 93.

The first link between this third link 91 and pin 90.93
The link 86 constitutes a toggle link.

A plate 94 is fixed to the tip of the second link 89, and when the cylinder 83 is operated and its piston rod 85 protrudes, the plate 94 is attached to the lock block 89.
3, 74 on one side.

Reference numeral 95 denotes a stopper block attached to each support frame 30, 31, and lock blocks 73 and 74 are held between this stopper block 95 and plate 94, whereby the rotation base 45 is positioned and locked.

Again in FIGS. 4 and 5, there are fixtures as a plurality of predetermined jigs for the A car type, for example, on the upper and lower parts of the base rate 46 when it is located at the first position, that is, on one side of the rotating base 45. -100 and 101 are provided.

Each fixture 100 is for holding the upper part of the side body B, and has a bracket I-102 fixed to the base plate 1/46.

As shown in detail in FIG. 7, a central portion of an anim 104 is rotatably supported at the tip of this bracket 1tJ2 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 piston rod 10 of this cylinder 108 is
The tip of 9 is connected to the clamp base 107, and the clamp base 107 rotates when the cylinder 108 operates.

A cylinder 110 is swingably supported on the clamp base 107, and a clamp claw 111 is rotatably supported.

The tip of the piston rod 112 of the cylinder 110 is connected to a clamp claw 111, and when the cylinder 110 is operated, the clamp claw 111 is at a clamping position where the upper part of the side body B is clamped together with the guide surface 106;
It can take the unclamped position.

The aforementioned clamp base 107, cylinder 108°11
0, the clamp claw 111 as a whole constitutes a jig member 113 that receives, for example, a side body for an A-car 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 an A-car type hardtop.

These jig members 11'3L and 114 are formed so that the shapes of their clamp claws 111 and guide surfaces 106 match the corresponding guide bodies.

Furthermore, these jig members 113 and 114 are attached to the arm 104.
It is switched by rotating 180 degrees.

Each of the fixtures 101 is for holding the lower part of the side body B, 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, 125 are swingably supported.

126 and 127 are a pair of clamp claws rotatably supported at one end of the arm 122, and these clamp claws 1
The tips of piston rods 128° and 129 of the cylinders 124 and 125 are respectively connected to 26 and 127, and when the cylinders 124 and 125 operate, the clamp claws 126 and 127 rotate to clamp the lower part of the side body B. It can take a clamp position and an unclamp position.

The aforementioned cylinders 124, 125 and unclamp claw 12
6, 127 as a whole constitutes a jig member 130 that receives, for example, a side body for an A-car type sedan.

A jig member 131 having the same structure as the jig member 130 is provided at the other end of the arm 122, and this jig member 131 receives, for example, a side body for an A-car type hardtop.

These jig members 130 and 131 are formed so that the shapes of the clamp claws 126 and 127 match the corresponding side bodies.

Furthermore, these jig members 130 and 131 are attached to the arm 122.
It is switched by rotating 180 degrees.

At the top and bottom of the base plate 47, that is, the other side of the rotating base 45 when it is in the second position, there are a plurality of fixtures (corresponding to the fixture 100 shown) for, for example, the B car type. (not shown) and fixture 135 are provided.

Each fixture 135 is connected to the fixture 100,
The structure is the same as No. 101 except that the dimensions and the shape of the clamp claw are modified to fit the B car type.
Detailed explanation will be omitted.

As shown in FIG. 2, a post 161 is installed as a positioning means on the floor surface 1 below the shuttleper 2 between the side body assembly mechanisms 10.
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 tip of the piston rod 163 of these cylinders 162.
A plurality of brackets 165 are erected at both edges of the bracket 165 and spaced apart from each other.

A holder 167 is rotatably supported at the top of each bracket 165 via a pin 166.
has a pair of arms 168, 169 spaced 90 degrees apart.

The arm 168 supports, for example, a floor F for a car type A from below, and the arm 169 supports, for example, a floor F for a car type B from below.

A cylinder 170 is swingably supported by each bracket 165, and the piston rod 1 of this cylinder 170 is
The tip of 71 is connected to holder 16'7.

By operating the cylinder 170, the positions of the arms 168 and 169 are switched.

Although only one side of the shuttleper 2 is shown in FIGS. 2 and 3, a pair of outer vertical columns 191 are erected on both sides of the shuttleper 2, and these outer vertical columns 191 and the shuttleper A pair of inner vertical columns 192 are also erected between the two.

Reference numeral 193 designates a pair of side bolsters that connect the central portions of the opposing outer vertical columns 191 with the shuttleper 2 in between, and are respectively fixed to the upper ends of the opposing 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 19L192, side bolsters 193, front and rear bolsters 194, vertical posts 19
5. Side beam 196 and outer and inner front and rear beams 1
97 and 198 constitute a machine frame 199 as a whole.

A pair of side body loading means 211 are attached to the machine frame 199 in correspondence with the pair of side body assembly mechanisms 10.

As shown in detail in FIGS. 9 and 10, each side body carrying means 211 has a beam 212 connected to the side bolster 193 and parallel to the front and rear bolsters 194, and a beam 212 connected to the outer front and rear bolsters 194 and parallel to the side bolster 193. 213 and these beams 212, 21
The tips of 3 are connected to each other.

A pair of support beams 214 and 215 bridging between the outer and inner front and rear beams 19γ and 198 are provided with brackets 21, respectively.
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 the rotating shaft 2 has a pair of sprocket wheels 222, 223 attached to the bearings 220, 221.
24 is rotatably supported.

An air motor 226 is attached to the support beam 215 via a bracket 225 , and an output shaft 227 of the air motor 226 is connected to a rotating shaft 224 via a coupling 228 .
The rotating shaft 22 is operated by the air motor 226 connected to the rotating shaft 22.
4 rotates.

A horizontal rectangular frame 231 is placed between the guide posts 218 and 219.
are provided, and vertical guide frames 232 and 233 are attached to the front and rear ends of this rectangular frame 231, respectively.

The guide posts 2 are installed at the upper and lower ends of the guide frames 232 and 233.
Guide rollers 234 and 235 rolling on the inner surfaces and both side surfaces of the rollers 18 and 219 are rotatably supported, respectively.

The rectangular frame 231 and the guide frames 232, 2i3 constitute a lifting platform 236 as a whole.

Sprocket wheels 239 and 240 are rotatably supported at the lower ends of the guide points 1218 and 219 via brackets 237 and 238, respectively, and an endless wheel is provided between these sprocket wheels 239 and 240 and the sprocket wheels 222 and 223. chain 2412
42 each have been handed over.

In the middle of these chains 241 and 242 is a lifting platform 236
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 the guide posts 218 and 219.

A pair of guide rails 251 and 252 parallel to the side bolster 193 are attached to the bracket 253 on the lower surface of the rectangular frame 231.
, 254.

Below the guide rails 251, 252 is a horizontal moving platform 2.
55 is arranged, and this movable table 255 is connected to the bracket 25.
6,257 and the guide rail 251,
Rollers 258 rolling on the top, bottom and sides of 252
, 259, and can run along guide rails 251, 252 by means of these rollers 258, 259.

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.

Further, an air motor 260 is attached to the lower surface of the inner end of the rectangular frame 231.

In addition, a bracket 263 is provided on the lower surface of the inner end of the rectangular frame 231.
A sprocket wheel 264 is rotatably supported through the sprocket wheel 264, and an endless chain 265 is passed between the sprocket wheel 264 and the sprocket wheel 262.

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 moved to the guide rail 251.2.
The robot approaches and moves away from the shuttleper 2 while being guided by the shuttlecock 52.

The cylinder 2 is connected to the movable table 255 via a bracket 266.
67 is swingably supported, and the tip of the piston rod 268 of this cylinder 267 is connected to a banger pawl 269 that is swingably supported by the moving table 255.
By the operation of , this banger pawl 269 hooks the side body B and comes off from it.

In FIG. 2, 281 is a banger provided above the shuttleper 2, and an arm 282 of this banger 281
Side body B is hooked to each.

Then, this side body B is carried by the banger 281 between the side body assembly mechanisms 10 to a predetermined position directly above the post 161.

The explanation so far has been about the side body assembly mechanism 10 provided on the left side of the shuttleper 2 in FIG. Since it is the same as the assembly mechanism 10, illustration and detailed explanation will be omitted.

Further, as shown in FIG. 2, a plurality of brackets 291 are erected on the floor surface 1 between the inner vertical columns 192, and a side body receiver 292 is provided at the upper end of each bracket 291.

As shown in detail in FIG. 11.12, each side body receiver 292 has a support block 294 that is swingably supported at the upper end of the bracket 291 via a pin 293. The tip of a piston rod 296 of a cylinder 295 that is swingably supported is connected to the cylinder 295 .

The plate 2 is connected to the support block 294 via a pin 297.
98 is swingably supported, and this plate 298 has a
Seats 299 and 300 are attached to the supports for the car type and B car type.

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 a plate 298, and when the cylinder 301 is operated, the plate 298 swings and the receiver is moved. Switching between the positions 299° and 300 is performed.

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 block 313 is fixed to the lower surface of each beam 312, and the block 313 and the beam 311 are bridged by a guide rod 314 parallel to the side bolster 193.

A simple welding robot 315 as a welding means is slidably supported on the machine frame 199 via the guide rod 314, and each welding robot 315 is equipped with a welding gun. It has 316.

In addition, in order to avoid complexity in the drawing, one of the welding robots 315 is shown with a solid line, and the others are shown with 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 the beam 311, and when this cylinder 317 operates, the welding robot 315 is guided by the guide rod 314 and moves.

Control of each welding robot is performed according to the table type and car type, and information on the table type and car type is obtained from the central control room of the assembly line or by detecting the table type and car type.

In FIG. 3, 331 is a cowl assembly carrying means, and this cowl assembly carrying means 331 is parallel to the side bolsters 193 attached to the front and rear bolsters 194 on the outside and inside, as shown in detail in FIG. 14.15. It has a moving platform 334 supported by a rail 332 and moved along the rail 332 by a running chain 333.

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.

Reference numeral 339 denotes a pair of guide rods erected on the frame 338, and these guide rods 339 pass through the movable table 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 a guide rod fixed to the frame 342, and this guide rod 343 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.

There are two pairs of brackets l-3 on one side of the rotating plate 344.
46 are fixed, and cylinders 347 are swingably supported by these brackets 346, respectively.

Reference numeral 348 denotes a clamp claw that is swingably supported by each bracket 346, and this clamp claw 348 has a cylinder 3.
The ends of the piston rods 349 of 47 are connected, and the cylinder 347 is operated, so that the clamp claws 348 clamp the cowl assembly C between themselves and the end surface of the bracket 346.

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.

The holding member 350 is also attached to the other side of the rotary play 1-344.
A holding member 351 having a similar configuration is provided,
This holding member 351 holds, for example, a cowl assembly for a B car type.

These holding members 350 and 351 are attached to the motor 34.
5, the rotating plate 344 rotates 180 degrees, thereby switching.

In FIG. 3, 371 is a rear waist carrying means, and this rear waist carrying means 371 is installed between a pair of curved rails 372 attached to the side bolster 193, as shown in FIGS. It has a movable table 373.

A pair of brackets 374 are attached to the upper surface of the moving table 373, and these brackets 374 have rotating shafts 376 having rollers 375 that roll on rails 372 on both sides.
is held rotatably.

377 is a motor attached to the bracket 314, and the rotation of this motor 377 is caused by gears 378a and 378.
b to the rotation shaft 376.

In addition, a pair of brackets 379 are provided on the top surface of the moving table 373.
are attached to these brackets 379, and rotary shafts 381 having rollers 380 rolling on rails 372 on both sides are rotatably supported.

The moving table 313 is moved along the rail 372 by rotation of the 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 this cylinder 382.

Reference numeral 385 denotes a pair of guide rods erected on the fork 384, and these guide rods 385 pass through the movable table 373.

A rotating plate 386 is rotatably supported by the fork 384, and this rotating plate 386 is rotated by a motor 387 attached to the fork 384.

Two pairs of brackets 38 are provided on one side of the rotating plate 386.
8 is fixed, and each bracket 388 has a guide surface 389 at its tip.

A cylinder 390 and a clamp claw 391 are swingably supported on each bracket 388, and the tip of a piston rod 392 of each cylinder 390 is connected to each clamp claw 391.

When the cylinder 390 operates, the clamp claw 391 clamps the rear waist R with the guide surface 389.

The bracket 38 translation cylinder 390 and the clamp claw 391 as a whole 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, a rear waist for a B car type.

These holding members 393 and 394 are attached to the motor 38.
Switching is performed by rotating the rotary plate 386 months 80 degrees by the operation of 7.

In FIG. 3, 411 is a rear upper panel carrying means, and this rear upper panel carrying means 411 is the first
As shown in Figure 8.19, 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 elevating plate 415, and a rotating block 419 is rotatably connected to the bracket 417 via a pin 418.

A bracket 420 is fixed to the rotation block 419,
The tip of a piston rod 423 of a cylinder 422 that is swingably supported by a bracket 421 attached to an elevating plate 415 is connected to this bracket 420.
When the cylinder 422 operates, the rotation block 41
9 rotates 90 degrees around pin 418.

A rotary table 424 is rotatably supported on the rotary block 419, and this rotary table 424 is rotated by a motor 425 attached to the rotary block 419.

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 claw 428 is swingably supported at one end of the rotary table 424, and the cylinder 4 is attached to the clamp claw 428.
The tips of 26 piston rods 429 are connected.

Then, as the cylinder 426 operates, the rear upper panel U is clamped between the clamp claw 428 and the guide surface 427.

The aforementioned cylinder 426, clamp claw 42 and guide surface 4
The reference numeral 27 as a whole constitutes a holding member 430 that holds the rear upper panel U for, for example, the A car type.

A holding member 431 having the same structure as the holding member 430 is 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 42.
5, the rotating table 424 rotates 180 degrees, thereby switching.

Next, the operation of one embodiment of the present invention will be explained.

First, when the floor F placed on the shuttleper 2 and the rear upper panel U are being conveyed in the direction of the arrow in FIG. 1 due to the forward movement of the shuttleper 2, the following occurs.

The side body B is conveyed by the banger 281 and stopped between the movable tables 255.

At this time, the side body B is the arm 282 of the banger 281.
It is hooked onto the wall and hangs down from it as shown in Figure 2.

Moreover, at this time, the elevating table 236 is stopped at the highest position.

Next, the air motor 260 is operated to rotate the output shaft 261 and the sprocket wheel 262.

As a result, the chain 265 runs, and the movable platform 255 is guided by the guide rails 251 and 252 while the banger 2
Move closer to 81.

Then, when the moving table 255 moves to a predetermined position, it stops moving.

Next, the cylinder 267 is operated and the piston rod 268 is activated.
make it stand out.

As a result, the banger pawl 269 swings counterclockwise in FIG. 19, and the side body B is caught by the banger pawl 269 and separated from the arm 282 of the banger 281.

In this way, the side bore B is transferred from the banger 281 to the moving table 255.

At this time, the side body B hangs down from the banger claw 269 due to its own weight.

Next, the air mower 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 movable platform 255 supports the side body B while supporting the guide rail 2SL252.
The robot moves away from the banger 281 while being guided by.

When the moving table 255 moves to a predetermined position (the position indicated by the solid line in FIG. 9), it stops moving.

Next, the air motor 226 is operated to rotate its output shaft 227.

The output shaft 227 is rotated by the coupling 228 and the rotating shaft 22.
4. Transmitted to the chains 241, 242 via the sprocket wheels 222, 223, and the chains 241, 24
Run 2.

As the chains 241 and 242 run, the lifting platform 236 descends while being guided by the guide posts 218 and 219.

This box and side body B are supported by a moving table 255.

Next, the shuttleper 2 moves to its forward limit and stops moving.

Thereby, the floor F is carried between the side body assembly mechanisms 10.

At this time, the elevating table 236 also reaches a predetermined height and stops descending.

At this time, the piston rod 296 of the cylinder 295 of the side body receiver 292 protrudes, and as a result, the plate 298 stands upright as shown by the solid line in FIG.

Therefore, the lower end of the side body B is fixed on the seat 299, and the attitude of the side body B is adjusted.

Next, the cylinder 162 of the receiver post l-161 is operated, and its piston rod 163 is projected.

As a result, the plate 164 rises, and the arm 168 lifts up the floor F placed on the shuttleper 2 while supporting it from below.

On the other hand, the frame 14 of each side body assembly mechanism 10 is located at the retracting limit as shown in FIG.

Simultaneously with the operation of the cylinder 162 of the post 161, the motor 16 of each side body assembly mechanism 10 is operated, and the output shaft 17 is rotated.

This rotation of the output shaft 17 is transmitted to a pinion 26 fixed to the rotating shaft 25, causing the pinion 26 to rotate.

This rotational movement of the pinion 26 is converted into linear movement by the rack 27.

As a result, the frame 14 approaches the floor F on the shuttleper 2 while bringing the slide plate 13 and slide leg 15 into sliding contact.

Further, the rear upper panel carrying means 411 is in a state as shown in FIG. 18, with the piston rods 414 and 423 of the cylinders 413 and 422 both being retracted.

When the cylinder 162 of the post 161 operates, the cylinder 413 of the rear upper panel carrying means 411 also operates, causing the piston rod 414 thereof to protrude.

Therefore, the rotary table 424 rises, and the rear upper panel U on the shuttleper 2 moves onto the guide surface 427.

Next, the cylinder 426 is actuated so that its piston rod 42
9 is protruded, the clamp claw 428 is swung, and the rear upper panel U is held between the clamp claw 428 and the guide surface 421.

When the rotary table 424 rises to a predetermined height, the cylinder 41
Stop the operation of 3.

When the frame 14 is in a predetermined position, that is, the rotating base 4
When the fixtures 100 and 101 of No. 5 move forward to a position where they can hold 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. It is swung 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 B 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 cylinders 124 and 125 are activated to project the piston rods 128 and 129, and the clamp claws 126 and
127 from the unclamp position to the clamp position.

As a result, the clamp claws 126 and 127 are attached to the side body B.
Grasp the bottom of the.

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.

Next, actuate the cylinder 267 so that the piston rod 268
Retract the banger claw 269 from side body B.
to leave.

In this way, the side body B 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, the plate 29, and the seats 299, 300 are integrally mounted around the pin 293.
It swings to the position shown by the imaginary line in Figure 2.

As a result, as will be described later, even if the frame 14 moves further forward, the side body receiver 292 will be located in the space between the frame 14 and the fixture 101, and will not interfere with the side body assembly mechanism 10.

Next, in order to avoid interference between the rotating base 45 and the side body carrying means 211, the air morph 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 run, and the lifting platform 2
36 rises to the original position while being guided by guide posts l-218 and 219.

Next, again, the motor 16 of each side body assembly mechanism 10
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 moves its clamp claw 3
Cowl assembly C between 48 and bracket 346
While holding it in place, the running chain 333 moves it along the rail 332 to a predetermined position, that is, a position directly above the floor F.

On the other hand, the movable table 373 of the rear waist carrying means 371 has its clamp claw 391 and the guide surface 388 of the bracket 388.
Hold the rear waist R between the motor 377 and the motor 377.
As a result of the rotation, it moves along the rail 372 to a predetermined position, that is, to a position directly above the floor F.

When the floor F is raised to a predetermined height while being supported from below by the arm 168 of the post 161 and positioned at a predetermined position, the operation of the cylinder 162 is stopped.

At this time, the shuttleper 2 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 stopper 28a of the frame 14 comes into contact with the shock absorber 28, thereby alleviating the impact when the frame 14 is stopped.

Next, the frame 14 is locked to the base 11 at the forward limit by the locking device 29.

At this time, the side body B held by the fixtures 100 and 101 is positioned and set at a normal position with respect to the floor F.

Next, the cylinder 4 of the rear upper panel carrying means 411
22, the rotation block 419 and the rotation table 424 can be rotated 90 degrees counterclockwise in FIG. 18 about the pin 418, and the rotation block 419 is made to stand upright.

As a result, the rear upper panel U is positioned and set at a normal position with respect to the floor F and side body B.

Cowl assembly carrying means 33 that has reached the predetermined position
The first cylinder 340 is activated at the same time as the cylinders 42 and 2, and its piston rod 341 protrudes.

Therefore, the rotary plate 344 holding the cowl assembly C approaches the floor F, and the cowl assembly IJC moves to the position shown by the imaginary line in FIG. 3.

The cylinder 335 is then actuated and its piston rod 3
36 stands out.

As a result, the cowl assembly C is lowered and the floor F1 is lowered.
It is positioned and set to the normal position with respect to the side body B as shown by the imaginary line in FIG.

In addition, the rear waist carrying means 37 has reached the predetermined position.
One cylinder 382 operates simultaneously with the operation of the cylinder 335, and its piston rod 383 protrudes.

Therefore, the rear waist R is lowered and is positioned and set at a normal position with respect to the floor F1 and the side body B.

Next, the welding robot 315 moves the floor F1, side body B1, rear upper panel U1, rear waist R,
The cowl assemblies 'Jc are spot welded at a plurality of predetermined locations to temporarily join them together.

In this way, when the installation of the side body B, rear upper panel U1, rear waist R1 cowl assembly C to the floor F is completed, the cylinder 108,
110, 124, 125 to operate the piston rod 10.
9 protrudes and the piston rods 112, 128
, 129, and clamp claws 111, 126, 12.
7 from the clamp position to the unclamp position, and the side body B of the clamp claws 111, 126, 127
Release the hold on.

Further, 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,
Clamp claws for rear upper panel U, IJ waist R and cowl assembly C 428°391
．． 348 are released.

Next, the cylinder 4 of the rear upper panel carrying means 411
13.422 is activated and its piston rod 414°42
3 retracts, rotating block 419 and rotating table 424
returns to its original position.

At the same time, the cylinder 3 of the Suya West carrying means 371
82 is activated and the piston rod 383 is retracted, and at the same time, the motor 377 is activated and the rear waist carrying means 37 is activated.
1 returns to the standby position to receive the rear waist R.

On the other hand, the cylinder 3 of the cowl assembly carrying means 331
35, 340 are also activated and their piston rods 336, 3
41 is retracted, the chain 333 runs in the opposite direction to that described above, and the cowl assembly loading means 331 returns to the standby position for receiving the cowl assembly 'Jc.

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 retraction limit shown by the solid line in FIG. 4.

The receiver then operates the cylinder 162 of the post 161 to retract its piston rod 163 and transfer the floor F onto the shuttleper 2.

Next, the shuttleper 2 moves forward and transports the installed floor F to the next stage, while also transporting the installed floor F to the next stage.
is carried between the side body assembly mechanisms 10.

At this time, the cylinder 295 of the side body receiver 292 is operated and its piston rod 296 protrudes, and the plate 298 and the receiver seats 299, 300 stand upright.

As a result, the receiver seats 299 and 300 return to their standby positions for receiving the side body B.

By repeating the above cycle, the side body B1, rear upper panel U, and rear waist R1 cowl assembly C are installed on the floor F of car type A. However, when the floor of car type B is brought in, this equipment is installed. The fixture of the side body assembly mechanism 10 is switched from the A-type to the B-type by a signal from a table-type detection means installed in the front or a signal from a computer in the central control room, and the holding member of the rear upper panel loading means 411 is switched. Switching between 430 and 431, rear waist loading means 3
71, the holding members 350 and 351 of the cowl assembly carrying means 331, the arms 168 and 169 of the post 161, and the side body receiver 292 and the seats 299 and 300. It is done.

First, regarding switching of the fixture of the side body assembly mechanism 10, when the frame 14 is located at the backward limit, the cylinder 83 of each locking means 80, 81 is actuated to retract its piston rod 85, and the lock block 7
Stopper block 95 and plate 9 for 3.74
Release the hold with 4.

Next, the air motor 55 is operated to move the rotary base 45 to the first position.
From the position, it is rotated around the axis of the rotation shaft 34, 35.

At this time, the frame 14 is at the backward limit, so
The rotating base 45 does not interfere with surrounding equipment such as welding robots.

When the rotating base 45 rotates 180 degrees and reaches the second position, the tip of the stopper plate 65.66 touches the buffer body 67.68.
The rotating base 45 stops rotating.

At this time, the impact when the rotation pace stops at 45 rotations is alleviated by the rubbers 71 and 72.

Next, the cylinders 83 of the locking means so and si are operated again to cause the piston rods 85 thereof to protrude.

As a result, the stopper block 95 and the plate 94 clamp the lock blocks 73 and 74, and the rotation of the rotation base 45 is restricted to the second position.

In this way, the base plate 47 to which the fixture 135 for the B car type is attached faces the shuttleper 2, and the base plate 46 to which the A car type fixtures ioo and io1 are attached faces the opposite side of the shuttleper 2.

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.

Also, the holding members 393, 3 of the rear waist carrying means 3γ1
The switching of 94 is performed by operating the motor 387 and rotating the rotary plate 386 by 180 degrees, and
The holding members 350 and 351 of the cowl assembly carrying means 331 are switched by operating the motor 345 and rotating the rotary plate 344 by 180 degrees.

Switching the arms 168 and 169 of the post 161 is as follows:
This is done by operating the cylinder 170 to project the piston rod 171 and rotating the holder 167 around the pin 166 by 90 degrees.

Switching between the seats 299 and 300 of the side body receiver 292 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, when the vehicle type is changed from a sedan type to a hardtop type or from a hardtop type to a sedan type during the assembly of the A car type or the B car type, generally the holding member 430 of the rear upper panel carrying means 411. 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 switch the arms 168, 169 of the post 161 as the receivers, and the seats 299, 300 as the receivers of the side body receiver 292, only the jig members of the side body assembly mechanism 10 are switched.

In other words, arm io4,122 is morphed into 18
Rotates 0 degrees and moves from jig members 100 and 101 to jig member 11
Switch to 4°131.

In this embodiment, the table shape can be changed by rotating the rotating base 45, and the arms 104, 12 can be changed.
The arm 10 can be changed by rotating the rotating base 45.
For example, the rotation of the arms 104, 122 may correspond to a change in table type, and furthermore, the rotation of the arms 104, 122 may correspond to a change from the sedan type of car type A to the hard top type of car type B, for example, by rotation of the rotation base 45. Accordingly, it may be possible to correspond to a change from a hardtop type of car type A to a hardtop type of car type B, or from a hardtop type of car type B to a sedan type of car type B.

In addition, in this embodiment, the side body assembly mechanism 1
Although the side body B was brought closer to the floor F by moving the frame 14 of 0 along the rail-shaped slide base 12, it is possible to swing the side body B with the lower end as the center of swing as the side body assembly mechanism. The side body may be brought closer to the floor by using a jig side that can be used and standing up the jig side.

As explained above, according to the present invention, a machine frame is installed on each side of the means for positioning the floor, and the side body is movable on the machine frame to be removed from the banger and transferred to the side body assembly mechanism. Since the side body carrying means is attached, a wide space can be formed between the banger and the positioning means.

As a result, the welding means can be attached to the fixed machine frame using this space.

Therefore, it is only necessary to apply a driving force to the side body assembly mechanism to move the assembly mechanism, and the drive source does not need to have a large power.

Moreover, the large space allows for the installation of welding robots, further increasing the efficiency of car body assembly.

[Brief explanation of the drawing]

1 to 19 show one embodiment of the present invention, FIG. 1 is a schematic plan view thereof, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1,
Figure 3 is a view from the ■-■ arrow in Figure 2, Figure 4 is a side view of the side body assembly mechanism, Figure 5 is a front view of the side body assembly mechanism, and Figure 6 is the Vl of Figure 5. -W sectional view, Figure 7 is an enlarged side view near the fixture, Figure 8 is a side view of the receiver near the post, Figure 9 is a side view of the side body loading means, and Figure 10 is the side body loading means. Figure 11 is a side view of the side body receiver, Figure 12 is the X in Figure 11.
11-■ arrow view, Figure 13 is a side view near the welding robot, Figure 14 is a front view of the cowl assembly carrying means, Figure 15 is a xv-xv arrow view in Figure 14, and Figure 16 is a rear view. The front view of the waist carrying means, Figure 17 is the X in Figure 16.
18 is a front view of the rear upper panel carrying means, and FIG. 19 is a view taken along the xu-xix arrows in FIG. 18. F...Floor, 2...Floor conveyance means, 161...Positioning means, B...Side body, 281...Banger, 199・・・
... Machine frame, 211 ... Side body loading means, 10 ... Side body assembly mechanism, 315.
...Welding means.

Claims (1)

[Claims] 1. A floor transport means for transporting a floor, a positioning means for positioning the transported floor, and a banger for transporting a pair of side bodies up to just above the positioning means;
A machine frame is installed on each side of the positioning means, and the machine frame is movably attached to the machine frame, and after receiving each side bote from the banger, it is separated from the banger and then lowered to a predetermined height on the side of the positioning means. After receiving the side body from the side body carrying means installed on both sides of the side body carrying means and the positioning means and lowered to a predetermined height, approaching the floor positioned by the positioning means and positioning the side body with respect to the floor. a side body assembly mechanism for carrying in and positioning at least one of the cowl assembly and the rear waist on the floor and the side body; and a welding means for welding the parts.