A bridge shell welding device for axle processing

Abstract

A bridge shell welding device for vehicle axle processing relates to the technical field of metal welding equipment, comprising a horizontally arranged welding workbench, a U-shaped support frame is arranged below the welding workbench, the upper ends of the U-shaped support frame are fixedly connected to the lower surface of the welding workbench, and the welding workbench is respectively provided with a flip clamping assembly, a sliding welding assembly, a rotating welding assembly and a material transfer assembly. The present invention solves the problems that when welding equipment in traditional technology is used for assembly welding of vehicle axle bridge shells, the diversity of welding parts and positions leads to inconvenience in clamping, the single welding method is difficult to adapt to various forms of welding, different welding parts are prone to interference during welding, and the welding of the bridge shell is inconvenient.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding equipment, and in particular to a bridge housing welding device for vehicle axle processing. Background Art

[0002] The axle housing is the assembly base for the main reducer, differential, half shaft, wheel and other parts in the automobile axle. Its main function is to support and protect the main reducer, differential and half shaft, etc. The drive axle housing is divided into three types according to the structural form: integral type, separable type and combined type.

[0003] Specifically, according to different manufacturing processes, the integral bridge housing can be divided into three categories: cast integral bridge housing, steel plate stamping and welding bridge housing and steel tube expansion type. Among them, the steel plate stamping and welding integral bridge housing is also called the punching and welding bridge housing. Its main components are two upper and lower symmetrical half shells. Each half shell is made of steel plate as raw material and is processed by stamping. The two half shells are then welded together, and the bridge housing rear cover, main reducer housing (or rear cover) and spring support are welded in turn to form an integral bridge housing. The punching and welding bridge housing is light in weight and has high production efficiency, which is suitable for mass production.

[0004] From the production process, the punching and welding bridge shell mainly includes the stamping and forming of the half shell and the welding and assembly of the two half shells and other parts. Specifically, in the welding process, the particularity of the half shell of the axle in its own shape and welding position and the diversity of welding parts often lead to a series of problems when using existing equipment for the welding and forming of the punching and welding bridge shell, including:

[0005] 1. The diversity of welding parts and the particularity of welding locations lead to inconvenient clamping.

[0006] 2. The single welding method makes it difficult to achieve adaptive welding processing for different welding parts on one device.

[0007] 3. When performing different types of welding processes on different welding parts, welding mechanism interference is likely to occur.

[0008] 4. After welding is completed, multiple welded parts are converted from a separate state to an integrated state, which can easily lead to difficulties in unloading and removing parts.

[0009] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0010] In view of the defects in the prior art, the present invention provides a bridge shell welding device for axle processing, which is used to solve the problems that when the welding equipment in the traditional technology is used for the assembly and welding of the bridge shell of the vehicle axle, the diversity of welding parts and positions makes clamping inconvenient, the single welding method is difficult to adapt to various forms of welding, different welding parts are prone to interference during the welding process, and the welded bridge shell is inconvenient to cut.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] A bridge shell welding device for axle processing comprises a horizontally arranged welding workbench, a U-shaped support frame is provided below the welding workbench, the upper ends of the U-shaped support frame are fixedly connected to the lower surface of the welding workbench, and the welding workbench is respectively provided with a flip clamping assembly, a sliding welding assembly, a rotating welding assembly and a material transfer assembly.

[0013] As an optimized solution, a flip installation opening is opened on the longitudinal side end face of the welding workbench, and the flip clamping assembly includes a square flip frame rotatably arranged in the flip installation opening, and the two ends of the square flip frame are respectively rotatably installed on the transverse inner wall of the flip installation opening.

[0014] As an optimized solution, a flip drive motor is fixedly connected to the lateral outer end surface of the welding workbench, and the output shaft end of the flip drive motor extends into the flip mounting opening and is fixedly connected to the lateral side end surface of the square flip frame.

[0015] As an optimized solution, a support and positioning seat is telescopically provided on each lateral inner side wall of the square turning frame, and the support and positioning seat is a U-shaped seat with an upward opening. Two symmetrical arc-shaped clamping plates are telescopically provided on each longitudinal inner side wall of the square turning frame.

[0016] As an optimized solution, a laterally extending sliding limit opening is provided on the upper surface of the welding workbench, and the sliding limit opening is arranged on one side of the flip mounting opening. The sliding welding assembly includes a sliding vertical plate, and the lower end of the sliding vertical plate is slidably clamped in the sliding limit opening. A longitudinal electric-controlled telescopic cylinder is fixed to the upper part of the sliding vertical plate, and a sliding welding gun is fixed to the telescopic end of the electric-controlled telescopic cylinder.

[0017] As an optimized solution, a lateral movable seat is provided on the outer side of the flip mounting port, and two transversely symmetrical displacement telescopic cylinders are fixedly connected to the longitudinal outer end face of the welding workbench, and the telescopic ends of the displacement telescopic cylinders are fixedly connected to the longitudinal inner end face of the lateral movable seat.

[0018] As an optimized solution, a mounting groove is provided on the longitudinal outer end surface of the lateral movable seat, and the rotary welding assembly includes a rotary drive motor, which is fixedly connected to the inner groove surface of the mounting groove. The end of the output shaft of the rotary drive motor passes through the lateral movable seat and is fixedly connected to a circular turntable, and a positioning base is fixedly connected to one side of the outer end surface of the circular turntable, and a rotary welding gun is fixedly provided on the positioning base.

[0019] As an optimized solution, a horizontal telescopic cylinder is fixedly connected to the center of the outer end surface of the circular turntable, and a magnetic card holder is fixedly connected to the telescopic end of the horizontal telescopic cylinder.

[0020] As an optimized solution, a motor mounting opening is fixedly connected to the transverse outer end face of the welding workbench, a sliding drive motor is fixedly installed in the motor mounting opening, the output shaft end of the sliding drive motor extends into the sliding limit opening and is fixedly connected to a horizontal drive threaded rod, and the drive threaded rod passes through the sliding vertical plate and is threadedly connected thereto.

[0021] As an optimized solution, the material transfer assembly includes a top support seat arranged directly below the square turning frame, the top support seat is a transversely extending square seat, and the size of the top support seat is smaller than the inner opening size of the square turning frame.

[0022] As an optimized solution, two symmetrical vertical telescopic cylinders are fixedly connected to the upper surface of the U-shaped support frame in the transverse direction, and the upper telescopic end of each vertical telescopic cylinder is respectively fixedly connected to the lower surface of the top support seat.

[0023] As an optimized solution, the material transfer assembly also includes two symmetrically arranged and laterally extended conveying splints, two symmetrical conveying rollers are rotatably arranged between the two conveying splints, the two conveying rollers are arranged on both sides of the conveying splints, and a conveyor belt is sleeved between the two conveying rollers.

[0024] As an optimized solution, a conveying drive motor is fixedly connected to the longitudinal outer end surface of one of the conveying splints, and the output shaft end of the conveying drive motor passes through the conveying splint and is fixedly connected to the side end surface of one of the conveying rollers.

[0025] As an optimized solution, a steering drive motor is fixedly connected to the lower surface of the welding workbench, and the steering drive motor is arranged between the flip mounting port and the conveyor belt. The end of the output shaft of the steering drive motor passes upward through the welding workbench and is fixedly connected to a disc steering seat. A lifting and telescopic cylinder is fixedly connected to the center of the upper surface of the disc steering seat, and the upper telescopic end of the lifting and telescopic cylinder is fixedly connected to a square positioning seat.

[0026] As an optimized solution, a horizontal extension telescopic cylinder is fixedly connected to the lateral outer end face of the square positioning seat, the telescopic end of the extension telescopic cylinder is fixedly connected to a square displacement seat, the upper surface of the square displacement seat is fixedly connected to a prismatic clamping seat, each side end face of the prismatic clamping seat is respectively fixedly connected to a clamping telescopic cylinder, and the telescopic end of each clamping telescopic cylinder is respectively fixedly connected to a cylindrical clamping claw.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The sliding welding assembly and the rotating welding assembly provided in the present invention can be used for different welding parts and different forms of welding processes respectively, thereby effectively improving the adaptability of welding, so that when welding the axle housing of a vehicle axle, it is not necessary to frequently switch it between multiple devices, thereby improving the welding process efficiency; further, the sliding welding assembly is arranged above the welding workbench, and the rotating welding assembly is arranged on the side of the welding workbench. The two groups of welding assemblies can cooperate with each other and do not interfere with each other during their respective welding processes.

[0029] The sliding welding assembly provided in the present invention includes a sliding vertical plate, which can slide horizontally along the sliding limit opening under the drive of the sliding drive motor and the driving threaded rod to achieve continuous feeding during the linear welding process; further, a longitudinal electrically-controlled telescopic cylinder is fixed on the sliding vertical plate, and a sliding welding gun is fixedly connected to the telescopic end of the electrically-controlled telescopic cylinder. The sliding welding gun can be used to perform linear welding on the joint of the two axle half shells, and the linear welding position can be adjusted by controlling the extension and contraction of the electrically-controlled telescopic cylinder to achieve combined welding of multiple different welding parts.

[0030] The rotary welding assembly provided in the present invention comprises a lateral movable seat, a rotary drive motor is fixedly connected to the longitudinal outer end face of the lateral movable seat, a circular turntable is fixedly connected to the end of the output shaft of the rotary drive motor, a positioning base is fixedly connected to the side end face of the circular turntable, a rotary welding gun is fixed on the positioning base, the circular turntable is driven to rotate by the rotary drive motor, and the circumferential welding and fixing between the axle housing and the main reducer housing (or rear cover) can be achieved by using the rotary welding gun. During the welding process, the rotary welding position can be adjusted by controlling the telescopic displacement cylinder to achieve welding feed; further, a magnetic suction holder is telescopically provided at the center of the side end face of the circular turntable, and the magnetic suction holder can magnetically adsorb and clamp the main reducer housing (or rear cover) to be welded.

[0031] The flip clamping assembly provided in the present invention can adaptively clamp the bridge shell components during the bridge shell welding process. Specifically, the flip clamping assembly includes a square flip frame, which is rotatably installed in the flip installation port of the welding workbench. The square flip frame can be flipped around the axis under the control of the flip drive motor, so as to realize the processing switching of different welding parts during the welding process; during the welding process, the two axle half shells to be welded are first clamped onto the two supporting positioning seats from above, and then the two axle half shells are clamped and positioned from both sides by using the arc clamping plate, and the square flip seat is driven to rotate by the flip drive motor. On the one hand, after the single-side linear welding of the axle half shell is completed, the surface can be flipped over to perform linear welding on the other side; on the other hand, after the linear welding is completed, the square flip frame can be controlled to rotate to the vertical direction to perform rotational welding processing from the side.

[0032] The material transfer assembly provided in the present invention can realize the transfer and material transfer of the entire bridge shell after the axle shell welding is completed. Specifically, after the bridge shell parts are welded into an integrated bridge shell, the bridge shell can be pushed upward as a whole by controlling the extension of the vertical telescopic cylinder to drive the top support seat to rise, and then the square displacement seat is moved to the top of the axle shell by starting the steering drive motor, and the bridge shell is telescopically grasped by four groups of clamping claws; then the grasped bridge shell is transferred to the conveyor belt, and the welded axle shell is horizontally conveyed and transferred through the circular rolling of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0034] Figure 1 A half-section schematic diagram of the internal structure of each component in the present invention in a top view;

[0035] Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the main viewing direction;

[0036] Figure 3 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the right side viewing direction;

[0037] Figure 4 It is a schematic diagram of the external overall structure of each component in the present invention when viewed from the left side;

[0038] Figure 5 It is a schematic diagram of the overall structure of the rotary welding assembly in the present invention in the main viewing direction;

[0039] Figure 6It is a schematic diagram of the external overall structure of the present invention in a top view;

[0040] Figure 7 It is a schematic diagram of the external overall structure of the present invention in the main viewing direction.

[0041] In the figure: 1-welding workbench, 2-U-shaped support frame, 3-flip installation port, 4-square flip frame, 5-flip drive motor, 6-support positioning seat, 7-arc clamping plate, 8-sliding limit port, 9-sliding vertical plate, 10-electrically controlled telescopic cylinder, 11-sliding welding gun, 12-motor installation port, 13-sliding drive motor, 14-driving threaded rod, 15-lateral moving seat, 16-displacement telescopic cylinder, 17-installation groove, 18-rotation drive motor, 19-circular turntable , 20-positioning base, 21-rotating welding gun, 22-horizontal telescopic cylinder, 23-magnetic card seat, 24-top support seat, 25-vertical telescopic cylinder, 26-conveying splint, 27-conveying roller, 28-conveying belt, 29-conveying drive motor, 30-steering drive motor, 31-disc steering seat, 32-lifting telescopic cylinder, 33-square positioning seat, 34-extension telescopic cylinder, 35-square displacement seat, 36-prismatic clamping seat, 37-clamping telescopic cylinder, 38-clamping claw. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0043] like Figures 1 to 7 As shown, a bridge shell welding device for vehicle axle processing includes a horizontally arranged welding workbench 1, a U-shaped support frame 2 is provided below the welding workbench 1, the upper two ends of the U-shaped support frame 2 are fixedly connected to the lower surface of the welding workbench 1, and the welding workbench 1 is respectively provided with a flip clamping assembly, a sliding welding assembly, a rotating welding assembly and a material transfer assembly.

[0044] A flip installation opening 3 is opened on the longitudinal side end surface of the welding workbench 1, and the flip clamping assembly includes a square flip frame 4 rotatably arranged in the flip installation opening 3, and both ends of the square flip frame 4 are rotatably installed on the transverse inner side walls of the flip installation opening 3 respectively.

[0045] A turning drive motor 5 is fixedly connected to the transverse outer end surface of the welding workbench 1 , and the output shaft end of the turning drive motor 5 extends into the turning installation opening 3 and is fixedly connected to the transverse side end surface of the square turning frame 4 .

[0046] A supporting and positioning seat 6 is telescopically provided on each lateral inner side wall of the square turning frame 4 . The supporting and positioning seat 6 is a U-shaped seat with an opening facing upward. Two symmetrical arc-shaped clamping plates 7 are telescopically provided on each longitudinal inner side wall of the square turning frame 4 .

[0047] A laterally extending sliding limit opening 8 is provided on the upper surface of the welding workbench 1, and the sliding limit opening 8 is provided on one side of the flip mounting opening 3. The sliding welding assembly includes a sliding vertical plate 9, and the lower end of the sliding vertical plate 9 is slidably mounted in the sliding limit opening 8. A longitudinal electrically-controlled telescopic cylinder 10 is fixed to the upper part of the sliding vertical plate 9, and a sliding welding gun 11 is fixed to the telescopic end of the electrically-controlled telescopic cylinder 10.

[0048] A motor mounting opening 12 is fixedly connected to the transverse outer end surface of the welding workbench 1, and a sliding drive motor 13 is fixedly installed in the motor mounting opening 12. The output shaft end of the sliding drive motor 13 extends into the sliding limit opening 8 and is fixedly connected to a horizontal driving threaded rod 14. The driving threaded rod 14 passes through the sliding vertical plate 9 and is threadedly connected thereto.

[0049] A lateral moving seat 15 is provided on the outer side of the flip installation opening 3 , and two transversely symmetrical displacement telescopic cylinders 16 are fixedly connected to the longitudinal outer end surface of the welding workbench 1 , and the telescopic ends of the displacement telescopic cylinders 16 are fixedly connected to the longitudinal inner end surface of the lateral moving seat 15 .

[0050] A mounting groove 17 is provided on the longitudinal outer end surface of the lateral moving seat 15, and the rotary welding assembly includes a rotary drive motor 18, which is fixedly connected to the inner groove surface of the mounting groove 17. The end of the output shaft of the rotary drive motor 18 passes through the lateral moving seat 15 and is fixedly connected to a circular turntable 19. A positioning base 20 is fixedly connected to one side of the outer end surface of the circular turntable 19, and a rotary welding gun 21 is fixedly provided on the positioning base 20.

[0051] A horizontal telescopic cylinder 22 is fixedly connected to the center of the outer end surface of the circular turntable 19 , and a magnetic card holder 23 is fixedly connected to the telescopic end of the horizontal telescopic cylinder 22 .

[0052] The material transfer assembly includes a top support seat 24 arranged directly below the square turning frame 4. The top support seat 24 is a square seat extending laterally, and the size of the top support seat 24 is smaller than the inner opening size of the square turning frame 4.

[0053] Two symmetrical vertical telescopic cylinders 25 are fixedly connected to the upper surface of the U-shaped support frame 2 in the transverse direction, and the upper telescopic end of each vertical telescopic cylinder 25 is fixedly connected to the lower surface of the top support seat 24 respectively.

[0054] The material transfer assembly also includes two symmetrically arranged, laterally extending conveying splints 26 , between which two symmetrical conveying rollers 27 are rotatably arranged, and the two conveying rollers 27 are arranged on both sides of the conveying splints 26 , and between which a conveying belt 28 is sleeved.

[0055] A conveying drive motor 29 is fixedly connected to the longitudinal outer end surface of one of the conveying clamping plates 26 . The end of the output shaft of the conveying drive motor 29 passes through the conveying clamping plate 26 and is fixedly connected to the side end surface of one of the conveying rollers 27 .

[0056] A steering drive motor 30 is fixedly connected to the lower surface of the welding workbench 1, and the steering drive motor 30 is arranged between the flip mounting port 3 and the conveyor belt 28. The end of the output shaft of the steering drive motor 30 passes upward through the welding workbench 1 and is fixedly connected to a disc steering seat 31. A lifting and telescopic cylinder 32 is fixedly connected to the center of the upper surface of the disc steering seat 31, and the upper telescopic end of the lifting and telescopic cylinder 32 is fixedly connected to a square positioning seat 33.

[0057] A horizontal extension and telescopic cylinder 34 is fixedly connected to the lateral outer end face of the square positioning seat 33, and a square displacement seat 35 is fixedly connected to the telescopic end of the extension and telescopic cylinder 34. A prismatic clamping seat 36 is fixedly connected to the upper surface of the square displacement seat 35, and a clamping and telescopic cylinder 37 is fixedly connected to each side end face of the prismatic clamping seat 36, and a cylindrical clamping claw 38 is fixedly connected to the telescopic end of each clamping and telescopic cylinder 37.

[0058] When the present invention is in use: first, the two support and positioning seats 6 are respectively controlled to telescopically move to a specific feeding clamping position, and at the same time, the displacement telescopic cylinder 16 is controlled to extend, and the two axle half shells are clamped onto the two support and positioning seats 6, and at the same time, the main reducer housing (or rear cover) is adsorbed and installed on the magnetic suction clamping seat 23; the four arc-shaped clamping plates 7 are respectively controlled to extend, and the two axle half shells are pressed and fixed from both sides, and the support and positioning seats 6 are controlled to retract to their original positions to avoid the welding parts; the sliding drive motor 13 is started, and the sliding drive motor 13 drives the driving threaded rod 14 to rotate, and then drives the sliding vertical plate 9 to slide horizontally along the sliding limit opening 8, At the same time, the electric telescopic cylinder 10 is controlled to extend, the working position of the sliding welding gun 11 is adjusted, and the sliding welding gun 11 is used to perform linear welding on the butt joints of the two axle half shells; the flip drive motor 5 is started, and the flip drive motor 5 drives the square flip frame 4 to flip from a horizontal state to a vertical state; the displacement telescopic cylinder 16 is controlled to shorten, so that the lateral moving seat 15 moves closer to the welding workbench 1, and the main reducer housing (or rear cover) can be pressed tightly on the welded axle housing, and the main reducer housing (or rear cover) and the axle housing are first spot-welded and fixed by using the rotating welding gun 21, and then the horizontal telescopic cylinder 22 is controlled to shorten, and the rotating drive is started. The motor 18 is driven to rotate to drive the circular turntable 19, and the connecting part of the main reducer housing (or rear cover) and the bridge housing is circumferentially welded by using the rotating welding gun 21; after welding, the flipping drive motor 5 is started again to rotate the square flip frame 4 from a vertical state to a vertical state, and the vertical telescopic cylinder 25 is controlled to extend, and the top support seat 24 is driven to rise to abut against the lower surface of the bridge housing, and the arc-shaped clamping plate 7 is controlled to retract, and the clamping of the bridge housing components is released, and the square positioning seat 33 is controlled to continue to rise, and the welded axle housing is pushed upward out of the square flip frame 4; the steering drive motor 30 is started, and the steering drive motor 30 drives the disc steering seat 31 to rotate, and at the same time controls the extension telescopic cylinder 34 to extend, moves the square displacement seat 35 to the top of the axle housing, controls the lifting telescopic cylinder 32 to shorten, and at the same time controls the clamping telescopic cylinder 37 to shorten, and uses four groups of clamping claws 38 to grab the axle housing; starts the steering drive motor 30 again, and the steering drive motor 30 drives the disc steering seat 31 to rotate, and transfers the grabbed axle housing to the conveyor belt 28; starts the conveying drive motor 29, and the conveying drive motor 29 drives the conveying roller 27 to rotate, and then drives the conveyor belt 28 to roll in a circle, so as to transport the welded axle housing horizontally.

Claims

1. A bridge housing welding device for axle processing, characterized in that: It comprises a horizontally arranged welding workbench (1), a U-shaped support frame (2) is provided below the welding workbench (1), both ends of the upper part of the U-shaped support frame (2) are fixedly connected to the lower surface of the welding workbench (1), and the welding workbench (1) is respectively provided with a flip clamping assembly, a sliding welding assembly, a rotating welding assembly and a material transfer assembly; A flip installation opening (3) is provided on a longitudinal side end surface of the welding workbench (1), and the flip clamping assembly comprises a square flip frame (4) rotatably arranged in the flip installation opening (3), and two ends of the square flip frame (4) are respectively rotatably mounted on the transverse inner side walls of the flip installation opening (3); A turning drive motor (5) is fixedly connected to the lateral outer end surface of the welding workbench (1), and the output shaft end of the turning drive motor (5) extends into the turning installation opening (3) and is fixedly connected to the lateral side end surface of the square turning frame (4); A supporting and positioning seat (6) is telescopically provided on each lateral inner side wall of the square turning frame (4), the supporting and positioning seat (6) being a U-shaped seat with an opening facing upward, and two symmetrical arc-shaped clamping plates (7) are telescopically provided on each longitudinal inner side wall of the square turning frame (4); The upper surface of the welding workbench (1) is provided with a sliding limit opening (8) extending transversely, the sliding limit opening (8) being arranged on one side of the flip installation opening (3), the sliding welding assembly comprising a sliding vertical plate (9), the lower end of the sliding vertical plate (9) being slidably mounted in the sliding limit opening (8), a longitudinal electric-controlled telescopic cylinder (10) being fixed to the upper part of the sliding vertical plate (9), and a sliding welding gun (11) being fixedly connected to the telescopic end of the electric-controlled telescopic cylinder (10); A lateral movable seat (15) is provided on the outer side of the flip installation opening (3); two transversely symmetrical displacement telescopic cylinders (16) are fixedly connected to the longitudinal outer end surface of the welding workbench (1); and the telescopic ends of the displacement telescopic cylinders (16) are fixedly connected to the longitudinal inner end surface of the lateral movable seat (15); The longitudinal outer end surface of the lateral movable seat (15) is provided with a mounting groove (17); the rotary welding assembly comprises a rotary drive motor (18); the rotary drive motor (18) is fixedly connected to the inner groove surface of the mounting groove (17); the output shaft end of the rotary drive motor (18) passes through the lateral movable seat (15) and is fixedly connected to a circular rotating disk (19); a positioning base (20) is fixedly connected to one side of the outer end surface of the circular rotating disk (19); and a rotary welding gun (21) is fixedly provided on the positioning base (20); A horizontal telescopic cylinder (22) is fixedly connected to the center of the outer end surface of the circular turntable (19), and a magnetic card holder (23) is fixedly connected to the telescopic end of the horizontal telescopic cylinder (22); The material transfer assembly comprises a top support seat (24) arranged directly below the square turning frame (4); the top support seat (24) is a square seat extending laterally, and the size of the top support seat (24) is smaller than the inner opening size of the square turning frame (4); Two symmetrical vertical telescopic cylinders (25) are fixedly connected to the upper surface of the U-shaped support frame (2) in the transverse direction, and the upper telescopic end of each vertical telescopic cylinder (25) is respectively fixedly connected to the lower surface of the top support seat (24); A steering drive motor (30) is fixedly connected to the lower surface of the welding workbench (1); the output shaft end of the steering drive motor (30) passes through the welding workbench (1) upward and is fixedly connected to a disc steering seat (31); a lifting and telescopic cylinder (32) is fixedly connected to the center of the upper surface of the disc steering seat (31); and the upper telescopic end of the lifting and telescopic cylinder (32) is fixedly connected to a square positioning seat (33); A horizontal extension and telescopic cylinder (34) is fixedly connected to the transverse outer end surface of the square positioning seat (33); a telescopic end of the extension and telescopic cylinder (34) is fixedly connected to a square displacement seat (35); a prism clamping seat (36) is fixedly connected to the upper surface of the square displacement seat (35); a clamping and telescopic cylinder (37) is fixedly connected to each side end surface of the prism clamping seat (36); and a columnar clamping claw (38) is fixedly connected to the telescopic end of each clamping and telescopic cylinder (37).

2. The axle housing welding device for axle processing according to claim 1, characterized in that: A motor mounting opening (12) is fixedly connected to the transverse outer end surface of the welding workbench (1), a sliding drive motor (13) is fixedly installed in the motor mounting opening (12), the output shaft end of the sliding drive motor (13) extends into the sliding limit opening (8) and is fixedly connected to a horizontal driving threaded rod (14), and the driving threaded rod (14) passes through the sliding vertical plate (9) and is threadedly connected thereto.

3. The axle housing welding device for axle processing according to claim 1, characterized in that: The material transfer assembly further comprises two symmetrically arranged and laterally extending conveying clamps (26), two symmetrical conveying rollers (27) are rotatably arranged between the two conveying clamps (26), the two conveying rollers (27) are arranged on both sides of the conveying clamps (26), and a conveyor belt (28) is sleeved between the two conveying rollers (27).

4. The axle housing welding device for axle processing according to claim 3, characterized in that: A conveying drive motor (29) is fixedly connected to the longitudinal outer end surface of one of the conveying clamps (26), and the output shaft end of the conveying drive motor (29) passes through the conveying clamp (26) and is fixedly connected to the side end surface of one of the conveying rollers (27).

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