CN210132187U - Assembly fixture for welding instrument panel main pipe beam mounting support - Google Patents

Abstract

The utility model relates to an assembly anchor clamps for welding panel board is responsible for roof beam installing support, including the base, the left branch of the main centre gripping frock of clamping main pipe roof beam, clamping central integrated ware left side and right side installing support on the base presss from both sides tight frock, clamping instrument board installing support and bracket divide the right branch of pressing from both sides tight frock, clamping air conditioner installing support and controlling the bracket to press from both sides tight frock. The utility model discloses can realize that the clamping to bracket about central integrated ware left and right installing support, instrument board installing support and bracket, air conditioner installing support reaches is fixed on the panel board main tubular beams, and single tight frock of clamp can compress tightly a plurality of work pieces simultaneously, is favorable to simplifying overall structure, avoids the clamping to interfere, shortens time, improves clamping efficiency, has the clamping good reliability, stability is high, easy operation have a bit.

Description

Assembly fixture for welding instrument panel main pipe beam mounting support

Technical Field

The utility model relates to an automobile parts production technical field, specific assembly anchor clamps that are used for welding panel board to be responsible for roof beam installing support that says so.

Background

The instrument panel framework is used as an important automobile part, a main pipe beam is provided with a plurality of mounting brackets, and the mounting brackets are required to be clamped and fixed respectively before welding operation. However, the space on the main pipe beam is limited, the welding part is irregular and generally has a plurality of curved surface structures, so that the clamping difficulty is greatly increased, each mounting bracket is provided with an independent clamp, the overall structure of the clamp is complex, clamping interference is easy to occur, the clamping time is prolonged, the clamping efficiency is greatly reduced, and welding operation of the instrument panel framework is not facilitated. In addition, chinese patent No. 201620964296.3 discloses an instrument panel skeleton anchor clamps, but this anchor clamps simple structure, and the location accuracy is poor, appears becoming flexible easily, can't realize being responsible for each installing support on the roof beam and fix a position the clamp tightly. Therefore, a clamping device capable of accurately clamping and positioning each mounting bracket on the main tubular beam is urgently needed.

Disclosure of Invention

In order to avoid and solve the technical problem, the utility model provides an assembly anchor clamps for welding panel board is responsible for roof beam installing support.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

the assembly fixture comprises a base, wherein a main clamping tool for clamping a main pipe beam, a left branch clamping tool for clamping a left middle mounting bracket, a left branch clamping tool for clamping a right middle mounting bracket, a middle branch clamping tool for clamping an instrument panel mounting bracket and a bracket, and a right branch clamping tool for clamping an air conditioner mounting bracket and a left bracket and a right bracket are arranged on the base.

Further, the left sub-clamping tool comprises a first support, a second support, a third support and a fourth support; the first support is connected with a first inclined pushing cylinder acting in an inclined upward direction, and an L-shaped lower pressing block for supporting the mounting bracket in the central integrator is arranged at the output end of the first inclined pushing cylinder; the top of the second support is provided with a first cushion block, the right end of the second support is provided with a first push-up cylinder, the output end of the first push-up cylinder is connected with a first swing arm, the bottom of the first swing arm is fixedly provided with a first upper pressing block corresponding to the first cushion block, the left side of the first swing arm is fixedly provided with a second upper pressing block for pressing a right mounting bracket of the central integrator, the right side of the first swing arm is fixedly provided with a third upper pressing block corresponding to the L-shaped lower pressing block, the second support is fixedly provided with a second push-up cylinder, and the output end of the second push-up cylinder is connected with a first lower pressing block corresponding to the second upper pressing block and a second lower pressing block for supporting the left mounting bracket of the central integrator; a second swing arm is hinged to the third support, a third push-up cylinder hinged to the second swing arm is rotatably connected to the third support, and a fourth upper pressing block corresponding to the second lower pressing block is arranged at the tail end of the second swing arm; the fourth support is hinged with a V-shaped swing arm and is rotatably connected with a fourth push-up cylinder hinged with the V-shaped swing arm, and the tail end of the V-shaped swing arm is provided with a first positioning pin corresponding to the L-shaped lower pressing block.

Furthermore, the middle dividing and clamping tool comprises a first sub-tool for clamping the instrument panel mounting bracket and a second sub-tool for clamping the bracket.

Further, the first sub-tool comprises a twelfth support and a fifth support; a second oblique pushing cylinder acting in an oblique upward direction is fixed on the twelfth support, a third lower pressing block for supporting the instrument panel bracket is fixed at the output end of the second oblique pushing cylinder, and baffles are fixed on the left side and the right side of the third lower pressing block; and a fifth push-up cylinder is fixed on the fifth support, the output end of the fifth push-up cylinder is connected with an extension arm plate, and the extension arm plate is connected with a V-shaped upper pressing block corresponding to the third lower pressing block.

Further, the second sub-tool comprises a sixth support, a fourth lower pressing block and a fifth lower pressing block which are used for supporting the instrument board mounting support are fixed on the sixth support, a third inclined pushing cylinder is fixed on the front side of the sixth support, the output end of the third inclined pushing cylinder is connected with a Y-shaped lower pressing block and a second positioning pin which are used for limiting the dislocation of the instrument board mounting support, a fifth upper pressing block is arranged above the Y-shaped lower pressing block, the fifth upper pressing block is connected with a third swing arm hinged to the sixth support, and the third swing arm is hinged to a fourth inclined pushing cylinder which is rotatably connected to the sixth support.

Furthermore, the right branch clamping tool comprises a first branch tool for clamping the left bracket and the right bracket and a second branch tool for clamping the air conditioner mounting bracket.

Furthermore, the first sub-tool comprises a seventh support, a sixth lower pressing block and a seventh lower pressing block which are fixed on the seventh support, a fourth swing arm hinged on the seventh support, a sixth upward pushing cylinder rotatably connected to the seventh support and hinged with the fourth swing arm, a sixth upper pressing block and a seventh upper pressing block which are fixed at the tail end of the fourth swing arm, a long rod fixed on the seventh support and used for limiting the air conditioner mounting bracket, a seventh upward pushing cylinder fixed on the seventh support, and a third positioning pin which is connected with the output end of the seventh upward pushing cylinder and is close to the seventh lower pressing block.

Furthermore, the second sub-tool comprises an eighth support, a second cushion block fixed on the eighth support, a first limit column and a second limit column which are fixed on the eighth support and form a U-shaped opening, a pressing block positioned above the second cushion block, an eighth push-up cylinder of which the output end is connected with the pressing block and fixed on the eighth support, a top block connected with the pressing block and supporting the right bracket, a ninth support, a fifth swing arm hinged to the ninth support, a ninth push-up cylinder rotatably connected to the ninth support and hinged to the fifth swing arm, an inclined pressing block fixed at the tail end of the fifth swing arm and corresponding to the top block, a first flat stop block fixed on the ninth support, a tenth support, a sixth swing arm hinged to the tenth support, a tenth push-up cylinder rotatably connected to the tenth support and hinged to the sixth swing arm, an inclined lower pressing block fixed at the top of the sixth swing arm, and a second flat stop block arranged at right angle to the first flat stop block, The pressing device comprises a seventh swing arm hinged to the ninth support, an eleventh push-up cylinder rotatably connected to the ninth support and connected with the seventh swing arm, and an eighth upper pressing block fixed at the tail end of the seventh swing arm and corresponding to the inclined surface lower pressing block.

Further, the main clamping tool comprises an eleventh support, a third cushion block fixed on the eleventh support, a third limiting column and a fourth limiting column which are fixed on the eleventh support and form a U-shaped opening, a pressing block located above the third cushion block, a twelfth push-up cylinder of which the output end is connected with the pressing block and fixed on the eleventh support, a switching seat fixed on the eleventh support, a fifth push-up cylinder fixed on the switching seat and acting in an inclined direction, and a mounting plate connected with the output end of the fifth push-up cylinder, wherein a fourth positioning pin, a first supporting block and a second supporting block which are supported at the bottom of the main pipe beam are fixed on the mounting plate, and a fifth positioning pin is fixed on the second supporting block.

The utility model has the advantages that: the utility model discloses can realize that the clamping to bracket about central integrated ware left and right installing support, instrument board installing support and bracket, air conditioner installing support reaches is fixed on the panel board main tubular beams, and single tight frock of clamp can compress tightly a plurality of work pieces simultaneously, is favorable to simplifying overall structure, avoids the clamping to interfere, shortens time, improves clamping efficiency, has the clamping good reliability, stability is high, easy operation have a bit.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of the middle left-hand clamping tool of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of the middle left-hand clamping tool of the present invention;

FIG. 4 is a schematic view of a left sub-clamping tool clamping a left, middle and right mounting bracket of a central integrator;

fig. 5 is a schematic view of a three-dimensional structure of the middle-split clamping tool of the present invention;

fig. 6 is a schematic view of a three-dimensional structure of the middle-split clamping tool of the present invention;

FIG. 7 is a schematic perspective view of a Y-shaped lower pressing block in the middle-split clamping tool;

FIG. 8 is a schematic view of a center split clamping tool clamping instrument panel mounting bracket and a bracket;

fig. 9 is a schematic perspective view of the middle right part clamping tool of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at I;

FIG. 11 is a partial schematic view of a right-hand sub-clamping fixture clamping a left bracket;

fig. 12 is a schematic perspective view of the middle-right branch clamping tool of the present invention;

FIG. 13 is an enlarged view of a portion of FIG. 12 at II;

FIG. 14 is a schematic diagram of a right bracket clamped by an inclined pressing block and a top block in the right part clamping tool;

fig. 15 is a schematic perspective view of the main clamping tool of the present invention;

fig. 16 is a schematic perspective view of the instrument panel main tubular beam and the mounting brackets.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.

As shown in fig. 1 to 16, an assembly fixture for welding a main pipe beam mounting bracket of an instrument panel comprises a base 1, wherein a main clamping tool 2 for clamping a main pipe beam 6, a left sub-clamping tool 3 for clamping a left middle mounting bracket, a left sub-clamping tool 3 for clamping a right middle mounting bracket, a middle sub-clamping tool 4 for clamping an instrument panel mounting bracket 63 and a bracket, a clamping air conditioner mounting bracket 66 and a right sub-clamping tool 5 for clamping a left bracket and a right bracket are arranged on the base 1.

The left sub-clamping tool 3 comprises a first support 31, a second support 32, a third support 33 and a fourth support 34; the first support 31 is connected with a first inclined pushing cylinder 311 acting in an inclined upward direction, and the output end of the first inclined pushing cylinder 311 is provided with an L-shaped lower pressing block 312 for supporting the mounting bracket 61 in the central integrator; a first cushion block 321 is arranged at the top of the second support 32, a first push-up cylinder 322 is arranged at the right end of the second support 32, the output end of the first push-up cylinder 322 is connected with a first swing arm 323, a first upper pressing block 324 corresponding to the first cushion block 321 is fixed at the bottom of the first swing arm 323, a second upper pressing block 325 for pressing the right mounting bracket 62 of the central integrator is fixed at the left side of the first swing arm 323, a third upper pressing block 326 corresponding to the L-shaped lower pressing block 312 is fixed at the right side of the first swing arm 323, a second push-up cylinder 327 is fixed on the second support 32, and the output end of the second push-up cylinder 327 is connected with a first lower pressing block 328 corresponding to the second upper pressing block 325 and a second lower pressing block 329 for supporting the left mounting bracket 63 of the central integrator; a second swing arm 331 is hinged to the third support 33, a third push-up cylinder 332 hinged to the second swing arm 331 is rotatably connected to the third support, and a fourth upper pressing block 333 corresponding to the second lower pressing block 329 is arranged at the tail end of the second swing arm 331; a V-shaped swing arm 341 is hinged to the fourth support 34, a fourth push-up cylinder 342 hinged to the V-shaped swing arm 341 is rotatably connected to the fourth support, and a first positioning pin 343 corresponding to the L-shaped lower pressing block 312 is arranged at the end of the V-shaped swing arm 341. By adopting the scheme, the main pipe beam 6 is supported on the first cushion block 321, the central integrator right mounting bracket 62 is placed on the first lower pressing block 328, the first inclined pushing cylinder 311 pushes the L-shaped lower pressing block 312 upwards in an inclined manner, the central integrator middle mounting bracket 61 is placed on the first inclined pushing cylinder 311, after the first upward pushing cylinder 322 is started, the swing arm 323 rotates downwards, the first upper pressing block 324 presses the main pipe beam 6, the second upper pressing block 325 presses the central integrator right mounting bracket 62, the third upper pressing block 326 presses the central integrator middle mounting bracket 61, the pressing and fixing of three positions on the instrument panel are realized, and the clamping efficiency is improved; secondly, the left mounting bracket 63 of the central integrator is placed on a second lower pressing block 329, a fourth push-up cylinder 342 drives a V-shaped swing arm 341 to turn downwards, a first positioning pin 343 positions the left mounting bracket 63 of the central integrator to realize position alignment, then a third push-up cylinder 332 pushes a second swing arm 331 to turn over, so that a fourth upper pressing block 333 compresses the left mounting bracket 63 of the central integrator, and therefore the left, middle and right mounting brackets of the central integrator are compressed and fixed through the left-branch clamping tool 3 and are matched with each other everywhere, clamping time is greatly shortened, and efficiency is improved.

The middle dividing clamping tool 4 comprises a first sub-tool for clamping the instrument panel mounting bracket and a second sub-tool for clamping the bracket.

The first sub-tool comprises a twelfth support 41 and a fifth support 42; a second oblique pushing cylinder 411 acting obliquely upwards is fixed on the twelfth support 41, a third lower pressing block 412 for supporting the instrument panel bracket 64 is fixed at the output end of the second oblique pushing cylinder 411, and baffles 413 are fixed on the left side and the right side of the third lower pressing block 412; a fifth push-up cylinder 421 is fixed on the fifth support 42, an output end of the fifth push-up cylinder 421 is connected with an extension arm plate 422, and the extension arm plate 422 is connected with a V-shaped upper pressing block 423 corresponding to the third lower pressing block 412. By adopting the scheme, the second oblique pushing cylinder 411 pushes the third lower pressing block 412 to move upwards in an oblique manner, so that the position can be adjusted, the instrument panel bracket 64 is placed on the third lower pressing block 412 and is abutted against the outer side of the instrument panel bracket 64 through the baffle 413, on one hand, the limitation is carried out, on the other hand, the instrument panel bracket 64 can be prevented from deforming during high-temperature welding, and the welding quality is ensured; the fifth push-up cylinder 421 drives the extension arm plate 422 to swing downward, so that the V-shaped upper pressing block 423 presses the instrument panel bracket 64.

The second sub-tool comprises a sixth support 43, a fourth lower pressing block 431 and a fifth lower pressing block 432 for supporting the instrument panel mounting bracket 65 are fixed on the sixth support 43, a third inclined pushing cylinder 433 is fixed on the front side of the sixth support 43, the output end of the third inclined pushing cylinder 433 is connected with a Y-shaped lower pressing block 434 and a second positioning pin 435 for limiting the dislocation of the instrument panel mounting bracket 65, a fifth upper pressing block 436 is arranged above the Y-shaped lower pressing block 434, the fifth upper pressing block 436 is connected with a third swing arm 437 hinged to the sixth support 43, and the third swing arm 437 is hinged with a fourth inclined pushing cylinder 438 which is rotatably connected to the sixth support 43. Adopt this scheme, place instrument board installing support 65 on No. four pushing down block 431 and No. five pushing down block 432, third oblique push cylinder 433 drives No. two locating pins 435 and finds instrument board installing support 65's position, it supports to lean on instrument board installing support 65 to drive Y shape pushing down block 434 simultaneously and carries on spacingly, guarantee to have higher clamping stability, rethread fourth oblique push cylinder 438 promotes No. three swing arms 437 swings, make No. five upper pressing block 436 compress tightly instrument board installing support 65, fix.

The right branch clamping tool 5 comprises a first branch tool for clamping a left bracket and a right bracket and a second branch tool for clamping an air conditioner mounting bracket.

The first sub-assembly comprises a seventh support 51, a sixth lower pressing block 511 and a seventh lower pressing block 512 which are fixed on the seventh support 51, a fourth swing arm 513 which is hinged on the seventh support 51, a sixth push-up cylinder 514 which is rotatably connected with the seventh support 51 and is hinged with the fourth swing arm 513, a sixth push-up block 515 and a seventh push-up block 516 which are fixed at the tail end of the fourth swing arm 513, a long rod 517 which is fixed on the seventh support 51 and used for limiting the air conditioner mounting bracket 66, a seventh push-up cylinder 518 which is fixed on the seventh support 51, and a third positioning pin 519 which is connected with the output end of the seventh push-up cylinder 518 and is close to the seventh lower pressing block 512. Adopt this scheme, place air conditioner installing support 66 on No. six lower briquetting 511 and No. seven lower briquetting 512 to carry on spacingly through stock 517, sixth push-up cylinder 514 promotes No. four swing arms 513 and overturns downwards, compresses tightly air conditioner installing support 66 through last briquetting 515 and No. seven last briquetting 516 on it, realizes that the clamping is fixed, and No. three locating pin 519 then is arranged in inserting air conditioner installing support 66 and fixes a position, adopts two a minute frock to ensure that air conditioner installing support 66 clamping is reliable, stable.

The second sub-assembly comprises an eighth support 52, a second cushion block 521 fixed on the eighth support 52, a first limit column 522 and a second limit column 523 which are fixed on the eighth support 52 and form a U-shaped opening, a pressing block 524 positioned above the second cushion block 521, an eighth push-up cylinder 525 the output end of which is connected with the pressing block 524 and is fixed on the eighth support 52, a top block 526 which is connected with the pressing block 524 and supports the right bracket 67, a ninth support 53, a fifth swing arm 531 hinged to the ninth support 53, a ninth push-up cylinder 532 which is rotatably connected to the ninth support 53 and is hinged to the fifth swing arm 531, an inclined pressing block 533 which is fixed at the tail end of the fifth swing arm and corresponds to the top block 526, a first flat blocking block 534 fixed on the ninth support 53, a tenth support 54, a sixth swing arm 541 hinged to the tenth support 54, a tenth push-up cylinder 542 which is rotatably connected to the tenth support 54 and is hinged to the sixth swing arm 541, An inclined plane lower pressing block 543 fixed at the top of the sixth swing arm 541, a second horizontal stop 544 arranged at a right angle to the first horizontal stop 534, a seventh swing arm 535 hinged to the ninth support 53, an eleventh push-up cylinder 536 rotatably connected to the ninth support 53 and connected to the seventh swing arm 535, and an eighth upper pressing block 537 fixed at the end of the seventh swing arm 535 and corresponding to the inclined plane lower pressing block 543. By adopting the scheme, firstly, the main pipe beam 6 is placed on the second cushion block 521, the U-shaped opening formed by the first limiting column 522 and the second limiting column 523 can prevent the main pipe beam 6 from moving along the direction vertical to the axis of the main pipe beam 6, the eighth push-up cylinder 525 pulls down the pressing block 524 to press the main pipe beam 6, meanwhile, the top block 526 connected with the pressing block 524 can be abutted against the curved surface of the right bracket 67, the clamping efficiency is improved, the ninth push-up cylinder 532 drives the fifth swing arm 531 to swing downwards, so that the inclined pressing block 533 is adapted to the inclined plane at the top of the right bracket 67, and the pressing and fixing are ensured; the left bracket 68 is abutted against the first flat stop block 534, the tenth push-up cylinder 542 drives the sixth swing arm 541 to swing downwards, the second flat stop block 544 on the tenth push-up cylinder and the first flat stop block 534 position the left bracket 68 together, the inclined plane pressing block 543 supports the upper end portion of the left bracket 68, and finally the eleventh push-up cylinder 536 drives the seventh swing arm 535 to swing downwards, so that the eighth push-up block 537 compresses the left bracket 68, the irregular curved surface structure of the left bracket 68 and the welding requirement of inclination can be met, and the clamping stability is ensured.

The main clamping tool 2 comprises an eleventh support 21, a third cushion block 22 fixed on the eleventh support 21, a third limiting column 23 and a fourth limiting column 24 which are fixed on the eleventh support 21 and form a U-shaped opening, a pressing block 25 positioned above the third cushion block 22, a twelfth push-up cylinder 26 of which the output end is connected with the pressing block 25 and fixed on the eleventh support 21, an adapter 27 fixed on the eleventh support 21, a fifth oblique push cylinder 28 fixed on the adapter 27 and acting in an oblique upward direction, and a mounting plate 29 connected with the output end of the fifth oblique push cylinder 28, wherein a fourth positioning pin 291, a first supporting block 292 and a second supporting block 293 supported at the bottom of the main pipe beam 6 are fixed on the mounting plate 29, and a fifth positioning pin 294 is fixed on the second supporting block 293. By adopting the scheme, the main pipe beam 6 is placed on the third cushion block 22 and is positioned in the U-shaped opening formed by the third limiting column 23 and the fourth limiting column 24, the main pipe beam 6 can be prevented from moving in a direction perpendicular to the axis of the main pipe beam 6, and the twelfth push-up cylinder 26 drives the pressing block 25 to move downwards to press and fix the main pipe beam 6; and the lower end part of the main pipe beam 6 can be supported on the first supporting block 292 and the second supporting block 293, and the dislocation along the axial direction of the main pipe beam 6 is limited by the fifth positioning pin 294 and the fourth positioning pin 291, so that the clamping and positioning are reliable and stable. In addition, the left branch clamping tool 3 and the right branch clamping tool 5 also realize the compression positioning of the main pipe beam 6.

During the use, can realize pressing fixedly to being responsible for roof beam 6, and to central integrator left installing support 62, central integrator in installing support 61, the right installing support 63 of central integrator compress tightly fixedly, to instrument board installing support 65, the fixing of compressing tightly of bracket 64, to air conditioner installing support 66, left bracket 68, right bracket 67, realize welding jobs.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides an assembly anchor clamps for welding panel board is responsible for roof beam installing support, includes base (1), its characterized in that: the air conditioner integrated device is characterized in that a main clamping tool (2) for clamping a main pipe beam (6), a left branch clamping tool (3) for clamping a left middle mounting bracket, a left branch clamping tool (4) for clamping a left middle mounting bracket, a right branch clamping tool (5) for clamping an air conditioner mounting bracket (66) and a left bracket and a right bracket of a central integrated device, a middle branch clamping tool (65) and a bracket are arranged on the base (1).

2. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 1, wherein: the left sub-clamping tool (3) comprises a first support (31), a second support (32), a third support (33) and a fourth support (34); the first support (31) is connected with a first inclined pushing cylinder (311) acting in an inclined upward direction, and an L-shaped lower pressing block (312) for supporting the mounting bracket (61) in the central integrator is arranged at the output end of the first inclined pushing cylinder (311); a first cushion block (321) is arranged at the top of the second support (32), a first push-up cylinder (322) is arranged at the right end of the second support, the output end of the first push-up cylinder (322) is connected with a first swing arm (323), a first upper pressing block (324) corresponding to the first cushion block (321) is fixed at the bottom of the first swing arm (323), a second upper pressing block (325) pressing the right mounting bracket (62) of the central integrator is fixed at the left side of the first swing arm, a third upper pressing block (326) corresponding to the L-shaped lower pressing block (312) is fixed at the right side of the first swing arm, a second push-up cylinder (327) is fixed on the second support (32), and the output end of the second push-up cylinder (327) is connected with a first lower pressing block (328) corresponding to the second upper pressing block (325) and a second lower pressing block (329) supporting the left mounting bracket (63) of the central integrator; a second swing arm (331) is hinged to the third support (33), a third push-up cylinder (332) hinged to the second swing arm (331) is rotatably connected to the third support, and a fourth upper pressing block (333) corresponding to the second lower pressing block (329) is arranged at the tail end of the second swing arm (331); the fourth support (34) is hinged with a V-shaped swing arm (341) and is rotatably connected with a fourth push-up cylinder (342) hinged with the V-shaped swing arm (341), and the tail end of the V-shaped swing arm (341) is provided with a first positioning pin (343) corresponding to the L-shaped lower pressing block (312).

3. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 1, wherein: the middle dividing clamping tool (4) comprises a first sub-tool for clamping the instrument panel mounting bracket and a second sub-tool for clamping the bracket.

4. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 3, wherein: the first sub-tool comprises a twelfth support seat (41) and a fifth support seat (42); a second oblique pushing cylinder (411) acting in an oblique upward direction is fixed on the twelfth support (41), a third lower pressing block (412) for supporting the instrument panel bracket (64) is fixed at the output end of the second oblique pushing cylinder (411), and baffles (413) are fixed on the left side and the right side of the third lower pressing block (412); a fifth push-up cylinder (421) is fixed on the fifth support (42), the output end of the fifth push-up cylinder (421) is connected with an extension arm plate (422), and the extension arm plate (422) is connected with a V-shaped upper pressing block (423) corresponding to the third lower pressing block (412).

5. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 3, wherein: the second sub-tool comprises a sixth support (43), a fourth lower pressing block (431) and a fifth lower pressing block (432) which support an instrument panel mounting support (65) are fixed on the sixth support (43), a third inclined pushing cylinder (433) is fixed on the front side of the sixth support (43), the output end of the third inclined pushing cylinder (433) is connected with a Y-shaped lower pressing block (434) and a second positioning pin (435) which limit the dislocation of the instrument panel mounting support (65), a fifth upper pressing block (436) is arranged above the Y-shaped lower pressing block (434), the fifth upper pressing block (436) is connected with a third swinging arm (437) hinged on the sixth support (43), and the third swinging arm (437) is hinged with a fourth inclined pushing cylinder (438) which is rotatably connected on the sixth support (43).

6. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 1, wherein: the right branch clamping tool (5) comprises a first branch tool for clamping a left bracket and a right bracket and a second branch tool for clamping an air conditioner mounting bracket.

7. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 6, wherein: the first sub-tool comprises a seventh support (51), a sixth lower pressing block (511) and a seventh lower pressing block (512) which are fixed on the seventh support (51), a fourth swing arm (513) which is hinged to the seventh support (51), a sixth push-up cylinder (514) which is rotatably connected to the seventh support (51) and is hinged to the fourth swing arm (513), a sixth upper pressing block (515) and a seventh upper pressing block (516) which are fixed at the tail end of the fourth swing arm (513), a long rod (517) which is fixed on the seventh support (51) and used for limiting an air conditioner mounting support (66), a seventh push-up cylinder (518) which is fixed on the seventh support (51), and a third positioning pin (519) which is connected with the output end of the seventh push-up cylinder (518) and is close to the seventh lower pressing block (512).

8. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 6, wherein: the second sub-assembly comprises an eighth support (52), a second cushion block (521) fixed on the eighth support (52), a first limiting column (522) and a second limiting column (523) which are fixed on the eighth support (52) and form a U-shaped opening, a pressing block (524) positioned above the second cushion block (521), an eighth push-up cylinder (525) of which the output end is connected with the pressing block (524) and fixed on the eighth support (52), a jacking block (526) connected with the pressing block (524) and supporting a right bracket (67), a ninth support (53), a fifth swing arm (531) hinged on the ninth support (53), a ninth push-up cylinder (532) rotatably connected with the ninth support (53) and hinged with the fifth swing arm (531), a diagonal pressing block (533) fixed at the tail end of the fifth swing arm (531) and corresponding to the jacking block (526), a first flat stop block (534) fixed on the ninth support (53), and a second stop block (534) fixed on the ninth support (53), The device comprises a tenth support (54), a sixth swing arm (541) hinged to the tenth support (54), a tenth push-up cylinder (542) rotatably connected to the tenth support (54) and hinged to the sixth swing arm (541), an inclined lower pressing block (543) fixed to the top of the sixth swing arm (541), a second flat stopper (544) arranged at a right angle to the first flat stopper (534), a seventh swing arm (535) hinged to the ninth support (53), an eleventh push-up cylinder (536) rotatably connected to the ninth support (53) and connected to the seventh swing arm (535), and an eighth push-up block (537) fixed to the end of the seventh swing arm (535) and corresponding to the inclined lower pressing block (543).

9. The assembly fixture for welding an instrument panel main tube beam mounting bracket of claim 1, wherein: the main clamping tool (2) comprises an eleventh support (21), a third cushion block (22) fixed on the eleventh support (21), a third limiting column (23) and a fourth limiting column (24) which are fixed on the eleventh support (21) and form a U-shaped opening, a pressing block (25) positioned above the third cushion block (22), a twelfth push-up cylinder (26) of which the output end is connected with the pressing block (25) and fixed on the eleventh support (21), an adapter (27) fixed on the eleventh support (21), a fifth oblique push cylinder (28) fixed on the adapter (27) and acting in an oblique upward direction, and a mounting plate (29) connected with the output end of the fifth oblique push cylinder (28), a fourth positioning pin (291), a first supporting block (292) and a second supporting block (293) which are supported at the bottom of the main pipe beam are fixed on the mounting plate (29), and a fifth positioning pin (294) is fixed on the second supporting block (293).

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