Automatic welding fixture for automobile anti-collision beam

Abstract

The invention relates to the technical field of automobile anti-collision beam welding, and discloses an automatic welding jig for automobile anti-collision beams, comprising a base plate, a welding frame is arranged above the base plate, an anti-collision beam body is arranged between the base plate and the welding frame, a driving structure is arranged at the bottom of the base plate, a placing base is arranged on the base plate, the welding frame is located on the placing base, the anti-collision beam body is located on the placing base, a welding movable frame is arranged on the placing base, two automatic welders are arranged on the welding movable frame, and a correction frame is arranged in the placing base. Compared with the prior art, the invention has the beneficial effect that an automatic welder is arranged on the welding movable frame and driven by the driving structure, so that when the welding movable frame moves, the automatic welder can automatically weld the automobile anti-collision beam. Since the invention can be targeted at a specific automobile anti-collision beam, the production cost of the automobile anti-collision beam can be reduced while ensuring accurate welding of the automobile anti-collision beam.

Description

Technical Field

[0001] The invention relates to the technical field of automobile anti-collision beam welding, and in particular to an automatic welding jig for automobile anti-collision beams. Background Art

[0002] The automatic welding fixture of automobile anti-collision beam refers to an automated device or tool specially used for welding automobile anti-collision beam. Its main function is to achieve precise control and execution of the welding process of automobile anti-collision beam through automation.

[0003] The automatic welding fixture for automobile anti-collision beams is mainly composed of the following parts:

[0004] 1. Welding gun: This is the most important part of the automatic welding fixture. Its main function is to provide a stable and accurate welding source. The welding gun usually consists of one or more welding gun heads, a wire feeding mechanism, a gas supply system, etc.

[0005] 2. Clamp: Mainly used to fix the anti-collision beam of the car to facilitate the welding gun to perform precise welding;

[0006] 3. Sensor: used to detect the position and angle of the welding gun and the car's anti-collision beam to ensure the accuracy of the welding process;

[0007] 4. Control system: used to control the movement of the welding gun to ensure the stability and accuracy of the welding process;

[0008] When the automatic welding jig of the automobile anti-collision beam in the prior art is used to weld the automobile anti-collision beam, a mechanical arm is usually used to drive the welding gun to make periodic movements to achieve automatic or semi-automatic welding of the automobile anti-collision beam. However, when the mechanical arm drives the welding gun to weld the automobile anti-collision beam, each connecting gap of the automobile anti-collision beam is usually welded in turn, which is inefficient compared to welding all the gaps of the automobile anti-collision beam at the same time. In addition, the use of a mechanical arm as a drive leads to a high production cost due to the high precision requirements of the mechanical arm, which in turn increases the production cost of the automobile anti-collision beam. The use of a low-cost but low-precision mechanical arm will cause inaccurate welding of the automobile anti-collision beam. Summary of the invention

[0009] In order to solve the above-mentioned problems, the present invention proposes an automatic welding jig for an automobile anti-collision beam.

[0010] An automatic welding jig for an automobile anti-collision beam comprises a bottom plate, a welding frame is arranged above the bottom plate, a plurality of anti-collision beam bodies are arranged between the bottom plate and the welding frame, a driving structure is arranged at the bottom of the bottom plate, a placing base is arranged on the bottom plate, the welding frame is located on the placing base, the anti-collision beam body is located on the placing base, a welding movable frame is arranged on the placing base, two automatic welders capable of welding the anti-collision beam body are arranged on the welding movable frame, a correction frame capable of correcting the anti-collision beam body is arranged in the placing base, and the correction frame and the welding movable frame are arranged alternately;

[0011] The placing base comprises a base body, a bottom ring is provided at the bottom of the base body, two sliding grooves are provided at the side ends of the bottom ring, and two top slots are provided on the two sliding slots, and the top slots pass through the upper end surface of the base body;

[0012] The correction frame includes a center ring, which is located inside the bottom ring, and a plurality of fixed support rods are provided at both ends of the side end surface of the center ring, and sliding bottom plates are fixedly provided at the ends of the fixed support rods on both sides, and the sliding bottom plates are located in the sliding through grooves and the sliding bottom plates and the sliding through grooves are slidably connected, and two correction plates are provided on the top of the two sliding bottom plates, and the correction plates are located in the top slots and the correction plates and the top slots are slidably connected;

[0013] The welding mobile frame includes a center block, the center block is located above the base body, center support rods are provided on both sides of the side end surface of the center block, end support rods are provided on both sides of the center support rod, an arc-shaped top plate is fixedly provided at the end of the end support rod and the end of the center support rod, an arc-shaped side plate is provided below the outer end of the arc-shaped top plate, protruding blocks are provided at the bottom of both ends of the arc-shaped top plate, the top of the arc-shaped side plate and the arc-shaped top plate are connected by the protruding blocks, automatic welding devices are provided at the top of both ends of the arc-shaped top plate, a fixing ring is provided at the bottom of the end of the end support rod, and auxiliary edges are provided at the top and side ends of the fixing ring and the ends of the arc-shaped side plates and the arc-shaped top plate;

[0014] The output end of the driving structure is connected to the center ring and the center block and drives the correction frame and the welding movable frame to rotate;

[0015] The driving structure comprises a motor, the motor is fixed to the bottom of the bottom plate by a fixing seat, a turntable is provided at the end of the motor, a turnblock is provided at the bottom of the turntable, a turnbar is provided under the turnbar, a slide groove is provided in the turnbar, the turnblock is located in the slide groove and is slidably connected between the slide grooves, a transmission rod is provided at the top of the turnbar, the transmission rod passes through the bottom plate and is rotatably connected between the bottom plate, the transmission rod is fixedly connected to the center ring, and the top of the transmission rod is fixedly connected to the center block;

[0016] The anti-collision beam body includes a side clamp, an upper clamp is provided on the top of the side clamp, a lower clamp is provided on the bottom of the side clamp, the side clamp is located between the fixing ring and the arc-shaped side plate, the lower clamp is located on the base body and the lower clamp is located between two correction plates, and the correction plate and the lower clamp are slidably connected.

[0017] As an improvement, the automatic welding device includes a fixed plate, which is fixed on the arc-shaped top plate and is located at the end of the arc-shaped top plate. A transfer block is provided on the fixed plate, and a gas pipe 2 is provided on the transfer block. Welding guns 1, 2, 3 and 4 are respectively provided on the end faces of both sides of the transfer block. Welding guns 1 and 2 are fixed by fixed block 1, and welding guns 3 and 4 are fixed by fixed blocks 2 and 3. Welding heads are provided at the ends of welding guns 1, 2, 3 and 4.

[0018] As an improvement, the welding frame includes several support plates, several of the support plates are evenly fixed on the upper end of the base body, several of the support plates are provided with a frame plate on the top, a welding machine control box is fixedly provided on the frame plate, a control knob is provided on the top of the welding machine control box, a display screen is provided on one side of the control knob, heat dissipation nets are provided at both sides of the welding machine control box, a jack is provided between the two heat dissipation nets, and several gas pipes 1 are provided at the bottom of the welding machine control box, the gas pipe 1 passes through the frame plate and several gas pipes 1 are connected one by one with several gas pipes 2.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the present invention is an automatic welding fixture for automobile anti-collision beams, which has the following beneficial effects:

[0020] 1. An automatic welder is arranged on the welding mobile frame and driven by the driving structure, so that when the welding mobile frame moves, the automatic welder can automatically weld the automobile anti-collision beam, so that the production cost of the automobile anti-collision beam can be reduced while ensuring the accurate welding of the automobile anti-collision beam;

[0021] 2. By staggeredly arranging the correction frame and the welding mobile frame, when the automatic welder on the welding mobile frame is welding a group of anti-collision beam bodies, the correction frame can also fix the anti-collision beam body to prevent the anti-collision beam body from sliding during welding, which greatly improves the stability of the anti-collision beam body during welding and prevents the occurrence of wrong welding and missed welding;

[0022] 3. An automatic welder is provided, so that the present invention can weld each gap of the automobile anti-collision beam at the same time, greatly improving the production efficiency of the automobile anti-collision beam;

[0023] 4. A driving structure is set to drive the welding movable frame and the correction frame to work, so that when the motor is started, the rotating block drives the rotating rod to swing back and forth through the connection with the slide slot, so that the rotating rod can make the welding movable frame and the correction frame reciprocate to achieve periodic welding of the two sets of anti-collision beam bodies. Compared with using a reversing motor to drive the welding movable frame and the correction frame to reciprocate, it has the advantage of reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The isometric view of the present invention Figure 1 ;

[0025] Figure 2 The isometric view of the present invention Figure 2 ;

[0026] Figure 3 This is the explosion diagram of the present invention. Figure 1 ;

[0027] Figure 4 This is the explosion diagram of the present invention. Figure 2 ;

[0028] Figure 5 It is a partial schematic diagram of the present invention;

[0029] Figure 6 The welding movable frame of the present invention is schematically shown in FIG. Figure 1 ;

[0030] Figure 7 The welding movable frame of the present invention is schematically shown in FIG. Figure 2 ;

[0031] Figure 8 is a schematic diagram of the correction frame of the present invention;

[0032] Fig. 9 Schematic diagram of the anti-collision beam body of the present invention;

[0033] Fig.10 It is a schematic diagram of the automatic welding device of the present invention;

[0034] Fig.11 The driving structure of the present invention is shown in FIG. Figure 1 ;

[0035] Fig.12 This is a schematic diagram of the welding frame of the present invention Figure 1 ;

[0036] Fig.13 This is a schematic diagram of the welding frame of the present invention Figure 2 ;

[0037] Fig.14 The present invention Figure 7 A is an enlarged schematic diagram;

[0038] Fig.15 The driving structure of the present invention is shown in FIG. Figure 2 .

[0039] As shown in the figure: 1. Place the base; 101. Base body; 102. Bottom ring; 103. Sliding groove; 104. Top slot; 2. Welding rack; 201. Support plate; 202. Rack plate; 203. Electric welding machine control box; 204. Control knob; 205. Display screen; 206. Heat dissipation net; 207. Socket; 208. Gas pipe 1; 3. Welding mobile rack; 301. Center block; 302. End support rod; 303. Arc top plate; 304. Arc side plate; 305. Center support rod; 306. Fixed ring; 307. Auxiliary wheel; 308. Auxiliary edge; 4. Automatic welding device; 401. Fixed plate; 402. Adapter block; 403, gas pipe 2; 404, welding gun 1; 405, welding gun 2; 406, fixed block 1; 407, welding gun 3; 408, welding gun 4; 409, fixed block 2; 410, fixed block 3; 411, welding head; 5, correction frame; 501, center circle; 502, fixed support rod; 503, sliding base plate; 504, correction plate; 6, driving structure; 601, motor; 602, fixed seat; 603, turntable; 604, rotating block; 605, rotating rod; 606, slide groove; 607, transmission rod; 7, bottom plate; 8, anti-collision beam body; 801, side closing plate; 802, lower closing plate; 803, upper closing plate. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings, an automatic welding fixture for an automobile anti-collision beam:

[0041] Combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 :

[0042] An automatic welding jig for an automobile anti-collision beam comprises a bottom plate 7, a welding frame 2 is arranged above the bottom plate 7, an anti-collision beam body 8 is arranged between the bottom plate 7 and the welding frame 2, a driving structure 6 is arranged at the bottom of the bottom plate 7, a placement base 1 is arranged on the bottom plate 7, the welding frame 2 is located on the placement base 1, the anti-collision beam body 8 is located on the placement base 1, a welding mobile frame 3 is arranged on the placement base 1, two automatic welders 4 are arranged on the welding mobile frame 3, and a correction frame 5 is arranged inside the placement base 1;

[0043] The anti-collision beam body 8 in the present invention is a specific arc shape. If it is necessary to weld anti-collision beams of other specifications, it is necessary to change the structure and shape of the present invention. The anti-collision beam body 8 can be placed on the placement base 1 for easy welding. The welding mobile frame 3 can drive the automatic welder 4 to rotate around the anti-collision beam body 8 to weld the anti-collision beam body 8. The correction frame 5 can correct the anti-collision beam body 8 to make the welding of the anti-collision beam body 8 more accurate.

[0044] Combined with Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.14 , Fig.15 :

[0045] The automatic welding device 4 includes a fixing plate 401, which is fixed on the arc-shaped top plate 303 and is located at the end of the arc-shaped top plate 303. A transfer block 402 is provided on the fixing plate 401, and a gas pipe 2 403 is provided on the transfer block 402. Welding guns 1 404, 2 405, 3 407 and 4 408 are respectively provided on the end faces on both sides of the transfer block 402. The welding guns 1 404 and 2 405 are fixed by a fixing block 1 406, and the welding guns 3 407 and 4 408 are fixed by a fixing block 2 409 and a fixing block 3 410. The ends of the welding guns 1 404, 2 405, 3 407 and 4 408 are all provided with welding heads 411;

[0046] The placing base 1 comprises a base body 101, a bottom ring 102 is provided at the bottom of the base body 101, two sliding grooves 103 are provided at the side ends of the bottom ring 102, and two top slots 104 are provided on the two sliding slots 103, and the top slots 104 pass through the upper end surface of the base body 101;

[0047] The correction frame 5 includes a center ring 501, which is located inside the bottom ring 102. A plurality of fixed support rods 502 are provided at both ends of the side end surface of the center ring 501. The ends of the fixed support rods 502 on both sides are fixed with sliding bottom plates 503. The sliding bottom plates 503 are located in the sliding grooves 103 and the sliding bottom plates 503 are slidably connected to the sliding grooves 103. Two correction plates 504 are provided on the top of the two sliding bottom plates 503. The correction plates 504 are located in the top slots 104 and the correction plates 504 are slidably connected to the top slots 104.

[0048] The welding mobile frame 3 includes a center block 301, which is located above the base body 101. Center support rods 305 are provided on both sides of the side end surface of the center block 301. End support rods 302 are provided on both sides of the center support rod 305. An arc-shaped top plate 303 is fixedly provided at the end of the end support rod 302 and the end of the center support rod 305. An arc-shaped side plate 304 is provided below the outer end of the arc-shaped top plate 303. Protruding blocks are provided at the bottom of both ends of the arc-shaped top plate 303. The top of the arc-shaped side plate 304 is connected to the arc-shaped top plate 303 by a protruding block. Automatic welders 4 are provided at the top of both ends of the arc-shaped top plate 303. A fixing ring 306 is provided at the bottom of the end of the end support rod 302. Auxiliary edges 308 are provided at the top and side ends of the fixing ring 306 and the ends of the arc-shaped side plate 304 and the arc-shaped top plate 303.

[0049] The anti-collision beam body 8 includes a side plywood 801, an upper plywood 803 is provided on the top of the side plywood 801, a lower plywood 802 is provided on the bottom of the side plywood 801, the side plywood 801 is located between the fixing ring 306 and the arc-shaped side plate 304, the lower plywood 802 is located on the base body 101 and the lower plywood 802 is located between the two correcting plates 504, and the correcting plates 504 are slidably connected to the lower plywood 802;

[0050] The driving structure 6 includes a motor 601, the motor 601 is fixed to the bottom of the bottom plate 7 by a fixing seat 602, a turntable 603 is provided at the end of the motor 601, a turntable 603 is provided at the bottom of the turntable 603, a turntable 604 is provided under the turntable 603, a turntable rod 605 is provided under the turntable 603, a slide groove 606 is provided in the turntable 605, the turntable 604 is located in the slide groove 606 and is slidably connected between the slide groove 606, a transmission rod 607 is provided on the top of the turntable 605, the transmission rod 607 passes through the bottom plate 7 and is rotatably connected between the bottom plate 7, the transmission rod 607 is fixedly connected to the center circle 501, and the top of the transmission rod 607 is fixedly connected to the center block 301;

[0051] Before placing the anti-collision beam body 8 on the base body 101, the side panels 801, the upper panels 803 and the lower panels 802 of the anti-collision beam body 8 need to be butt-jointed and fixed by spot welding, so that the side panels 801 and the upper panels 803 and the lower panels 802 are relatively stable, and the anti-collision beam body 8 is placed on the base body 101. At this time, the two correction plates 504 on the correction frame 5 can surround the lower panel 802 so that the anti-collision beam body 8 is accurately placed;

[0052] Start the motor 601, the motor 601 drives the turntable 603 to rotate, the turntable 603 moves in the slide groove 606 through the turn block 604 to drive the turn rod 605 to reciprocate, when the turn block 604 is closest to the transmission rod 607 and the turn rod 605 is located directly below the center of the turntable, when the turn block 604 moves from the closest to the transmission rod 607 to the farthest, the turn rod 605 will rotate in one direction and then rotate in the opposite direction after the turn rod 605 rotates in place, when the turn rod 605 rotates in one direction, the turn rod 605 drives the transmission rod 607 to rotate, the transmission rod 607 drives the center ring 501 and the center block 301 to rotate, the center ring 501 drives the sliding bottom plate 503 to slide in the sliding through groove 103 through the fixed support rod 502, and the sliding bottom plate 503 drives the correction plate 504 to rotate in the top slot 104;

[0053] When the motor 601 drives the center block 301 to rotate, the center block 301 drives the arc top plate 303 to rotate through the end support rods 302 and the center support rods 305, and the arc top plate 303 drives the arc side plate 304 to rotate, and the electric welding machine control box 203 is started at the same time. When the automatic welder 4 rotates following the welding mobile frame 3, the two automatic welders 4 work with the automatic welder 4 that turns to the front. When the welding mobile frame 3 rotates from the welded anti-collision beam body 8 to the unwelded anti-collision beam body 8, the welding gun 1 404, the welding gun 2 405, the welding gun 3 407 and the welding gun 4 408 can weld the four gaps of the anti-collision beam body 8 at the same time, which greatly improves the welding efficiency of the anti-collision beam body 8.

[0054] After the automatic welding device 4 finishes welding, the welding movable frame 3 rotates to its position, and the correction plate 504 rotates to the initial position of the welding movable frame 3. If this is the initial operation of the present invention, the unwelded anti-collision beam body 8 can be directly placed on the two correction plates 504. If the present invention is in operation, the welded anti-collision beam body 8 must be removed after the correction plate 504 rotates, and then the unwelded anti-collision beam body 8 can be placed on the two correction plates 504.

[0055] When the welding mobile frame 3 rotates, the auxiliary edges 308 provided on the fixing ring 306, the arc-shaped top plate 303 and the arc-shaped side plates 304 can facilitate the anti-collision beam body 8 to enter the gap between the fixing ring 306, the arc-shaped top plate 303 and the arc-shaped side plates 304. The fixing ring 306 and the arc-shaped side plates 304 are both provided with auxiliary wheels 307, so that the welding mobile frame 3 can be inserted into the anti-collision beam body 8 more smoothly, thereby preventing the anti-collision beam body 8 from sliding and affecting the subsequent welding work;

[0056] When welding is completed, the motor 601 is started to reverse and continue to perform the above work. When the motor 601 is reversed, another automatic welder 4 starts to work. When the welding of the current anti-collision beam body 8 is completed, the previous anti-collision beam body 8 can be replaced.

[0057] Combined with Fig.12 , Fig.13 :

[0058] The welding frame 2 includes a plurality of support plates 201, and the plurality of support plates 201 are evenly fixed on the upper end of the base body 101. A frame plate 202 is provided on the top of the plurality of support plates 201, and a welding machine control box 203 is fixed on the frame plate 202. A control knob 204 is provided on the top of the welding machine control box 203, and a display screen 205 is provided on one side of the control knob 204. Heat dissipation nets 206 are provided at both sides of the welding machine control box 203, and a jack 207 is provided between two heat dissipation nets 206. A plurality of gas pipes 208 are provided at the bottom of the welding machine control box 203, and the gas pipes 208 pass through the frame plate 202, and the plurality of gas pipes 208 are connected one by one with the plurality of gas pipes 2 403.

[0059] The welding frame 2 is a prior art and will not be described in detail in the present invention.

[0060] When workers use the present invention to weld the anti-collision beam of an automobile:

[0061] Before placing the anti-collision beam body 8 on the base body 101, the side panels 801, the upper panels 803 and the lower panels 802 of the anti-collision beam body 8 need to be butt-jointed and fixed by spot welding, and the anti-collision beam body 8 is placed on the base body 101. At this time, the two correction plates 504 on the correction frame 5 can surround the lower panels 802 so that the anti-collision beam body 8 can be accurately placed;

[0062] The start-up drives the transmission rod 607 to rotate, and the transmission rod 607 drives the center ring 501 to drive the sliding bottom plate 503 to slide in the sliding groove 103 through the fixed support rod 502. When rotating, the correction plate 504 can rotate from a welded anti-collision beam body 8 to the next set of unwelded anti-collision beam bodies 8;

[0063] The welding movable frame 3 and the correction frame 5 are staggered to form a ring, and the correction frame 5 is located in front of the welding movable frame 3. The motor 601 drives the welding movable frame 3 and the correction frame 5 to rotate at the same time. The anti-collision beam body 8 is first corrected by the correction frame 5, and then welded by the automatic welder 4. The two stations can be operated at the same time to improve production efficiency.

[0064] Since the correction frame and the welding movable frame are arranged alternately, when the automatic welding device on the welding movable frame is welding a group of anti-collision beam bodies, the correction frame can also fix the anti-collision beam body, that is, when the automatic welding device starts to weld the anti-collision beam body, the anti-collision beam body of the correction frame is not separated at this time, and when the automatic welding device completes or is about to complete welding the anti-collision beam body, the correction frame is separated from the anti-collision beam body at this time, so when the anti-collision beam body is welded, the correction frame can prevent the anti-collision beam body from sliding, which can effectively avoid the occurrence of wrong welding and missed welding;

[0065] The auxiliary edges 308 provided on the fixing ring 306, the arc-shaped top plate 303 and the arc-shaped side plate 304 can facilitate the anti-collision beam body 8 to enter into the gap between the fixing ring 306, the arc-shaped top plate 303 and the arc-shaped side plate 304;

[0066] After the automatic welder 4 finishes welding, the motor 601 is started again to continue working. The motor 601 will drive the rotating rod 605 to rotate in the opposite direction. When the rotating rod 605 rotates in the opposite direction, another automatic welder 4 will work to perform subsequent welding or work. When the welding of the current anti-collision beam body 8 is completed, the previous anti-collision beam body 8 can be replaced.

[0067] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. An automatic welding jig for an automobile anti-collision beam, comprising a bottom plate (7), a welding frame (2) being provided above the bottom plate (7), and a plurality of anti-collision beam bodies (8) being provided between the bottom plate (7) and the welding frame (2), wherein: A driving structure (6) is provided at the bottom of the base plate (7), a placement base (1) is provided on the base plate (7), the welding frame (2) is located on the placement base (1), the anti-collision beam body (8) is located on the placement base (1), a welding movable frame (3) is provided on the placement base (1), two automatic welders (4) capable of welding the anti-collision beam body (8) are provided on the welding movable frame (3), a correction frame (5) capable of correcting the anti-collision beam body (8) is provided in the placement base (1), and the correction frame (5) and the welding movable frame (3) are arranged in an alternating manner; The placement base (1) comprises a base body (101), a bottom ring (102) is provided at the bottom of the base body (101), two sliding grooves (103) are provided at the side ends of the bottom ring (102), and two top slots (104) are provided on the two sliding slots (103), and the top slots (104) pass through the upper end surface of the base body (101); The correction frame (5) comprises a center ring (501), the center ring (501) is located inside the bottom ring (102), a plurality of fixed support rods (502) are provided at both ends of the side end surface of the center ring (501), sliding bottom plates (503) are fixedly provided at the ends of the fixed support rods (502) on both sides, the sliding bottom plates (503) are located in the sliding groove (103), and the sliding bottom plates (503) and the sliding groove (103) are slidably connected, and two correction plates (504) are provided on the top of the two sliding bottom plates (503), the correction plates (504) are located in the top slots (104), and the correction plates (504) and the top slots (104) are slidably connected; The welding mobile frame (3) comprises a central block (301), the central block (301) being located above the base body (101), central support rods (305) being provided at both sides of the side end surface of the central block (301), end support rods (302) being provided at both sides of the central support rod (305), arc-shaped top plates (303) being fixedly provided at the ends of the end support rods (302) and the central support rod (305), and arc-shaped side plates (303) being provided at the lower part of the outer ends of the arc-shaped top plate (303). 04), the bottom of both ends of the arc-shaped top plate (303) are provided with protruding blocks, the top of the arc-shaped side plate (304) is connected to the arc-shaped top plate (303) by the protruding blocks, the top of both ends of the arc-shaped top plate (303) are provided with automatic welding devices (4), the bottom of the end of the end support rod (302) is provided with a fixing ring (306), the top and side ends of the fixing ring (306) and the ends of the arc-shaped side plate (304) and the arc-shaped top plate (303) are provided with auxiliary edges (308); The output end of the driving structure (6) is connected to the center ring (501) and the center block (301) and drives the correction frame (5) and the welding movable frame (3) to rotate; The driving structure (6) comprises a motor (601), wherein the motor (601) is fixed to the bottom of the base plate (7) by a fixing seat (602), a turntable (603) is provided at the end of the motor (601), a turntable (604) is provided at the bottom of the turntable (603), a turnbar (605) is provided under the turntable (603), a slide groove (606) is provided in the turnbar (605), the turntable (604) is located in the slide groove (606) and is slidably connected to the slide groove (606), a transmission rod (607) is provided at the top of the turnbar (605), the transmission rod (607) passes through the base plate (7) and is rotatably connected to the base plate (7), the transmission rod (607) is fixedly connected to the center ring (501), and the top of the transmission rod (607) is fixedly connected to the center block (301); The anti-collision beam body (8) comprises a side joint plate (801), an upper joint plate (803) is provided on the top of the side joint plate (801), a lower joint plate (802) is provided on the bottom of the side joint plate (801), the side joint plate (801) is located between the fixing ring (306) and the arc-shaped side plate (304), the lower joint plate (802) is located on the base body (101) and the lower joint plate (802) is located between two correction plates (504), and the correction plates (504) and the lower joint plate (802) are slidably connected.

2. The automatic welding jig for automobile anti-collision beam according to claim 1 is characterized in that: The automatic welding device (4) comprises a fixing plate (401), the fixing plate (401) being fixed on the arc-shaped top plate (303) and the fixing plate (401) being located at the end of the arc-shaped top plate (303), a transfer block (402) being provided on the fixing plate (401), a gas delivery pipe 2 (403) being provided on the transfer block (402), and welding gun 1 (404) and welding gun 2 (403) being provided on the end surfaces on both sides of the transfer block (402). 5) and welding gun three (407) and welding gun four (408), the welding gun one (404) and welding gun two (405) are fixed by a fixing block one (406), the welding gun three (407) and welding gun four (408) are fixed by a fixing block two (409) and a fixing block three (410), and the ends of the welding gun one (404), welding gun two (405), welding gun three (407) and welding gun four (408) are all provided with welding heads (411).

3. The automatic welding jig for automobile anti-collision beam according to claim 2 is characterized in that: The welding frame (2) comprises a plurality of support plates (201), the plurality of support plates (201) being evenly fixed to the upper end of the base body (101), a frame plate (202) being provided on the top of the plurality of support plates (201), a welding machine control box (203) being fixedly provided on the frame plate (202), a control knob (204) being provided on the top of the welding machine control box (203), a display screen (205) being provided on one side of the control knob (204), heat dissipation nets (206) being provided at both sides of the welding machine control box (203), a socket (207) being provided between two heat dissipation nets (206), a plurality of gas supply pipes (208) being provided at the bottom of the welding machine control box (203), the gas supply pipes (208) passing through the frame plate (202) and the plurality of gas supply pipes (208) being connected one by one with the plurality of gas supply pipes (403).

Images