A housing attachment welding device and welding process

Abstract

The application relates to the technical field of axle housing accessory welding, and provides an axle housing accessory welding device and a welding process, which comprise an axle housing body and further comprise a clamping assembly arranged on the outer surface of the axle housing body, the clamping assembly comprises two lifting rods connected to the outer surface of the axle housing body, one end of each of the two lifting rods is provided with a sealing ring I, and two liquid storage pipes I are arranged on the outer surfaces of the two sealing rings I respectively. When the device is used, the sealing ring II and the telescopic rod in the liquid storage pipe II are pushed to move, the telescopic rod moves to make the clamping block and the pressure sensor move towards the axle housing body, when the pressure sensor closely abuts against the outer surface of the axle housing body, the control valve is closed to prevent the liquid in the liquid storage pipe I from flowing back to the connecting pipe and the liquid storage pipe II, the stability of the clamping block in clamping and fixing the axle housing body is further improved, and the axle housing body is prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of bridge housing accessory welding technology, and in particular to a bridge housing accessory welding device and welding process. Background Technology

[0002] Welding of axle housing accessories is a key process in the production of automotive drive axle housings. It refers to the process of connecting the axle housing body with various functional accessories through welding to form a complete drive axle housing assembly. The drive axle housing is a core component of the automotive transmission system, which plays a role in supporting the wheels, transmitting torque, and bearing the weight of the vehicle body. The welding quality of its accessories directly affects the assembly accuracy of the drive axle and the driving safety of the entire vehicle.

[0003] Patent application number CN202510827459.7 describes in its specification that "This invention belongs to the field of bridge housing manufacturing technology, specifically relating to a bridge housing accessory welding device and welding process. The bridge housing includes a bridge housing body and multiple accessories welded to the bridge housing body. The welding device includes a welding table, a clamping mechanism set on the welding table for clamping the bridge housing body, a support frame set on the welding table, a positioning mechanism movably set on the support frame above the clamping mechanism for fixing the accessories, a movable seat set on the support frame for mounting the positioning mechanism, a lateral moving mechanism for driving the movable seat to move laterally, and a lifting moving mechanism for driving the positioning mechanism to move vertically. The positioning mechanism includes a mounting base connected to the lifting moving mechanism, a positioning disk rotatably set on the mounting base, multiple positioning fixtures circumferentially distributed on the positioning disk, and a rotating component set on the mounting base connected to and driving the positioning disk to rotate. By setting the positioning disk in conjunction with multiple mounting rods to integrate the positioning tube fixtures for welding multiple accessories, the structure is simple and the operation is convenient."

[0004] While existing technical solutions have the advantages mentioned above, they also have disadvantages: during the welding of axle housing accessories, they need to be fixed to improve the quality of the welding effect. However, existing technologies lack direct reference data on the forces acting on the axle housing during fixing. This results in the axle housing surface being easily damaged when the fixing force is too large, and loosening during welding when the fixing force is too small, affecting the welding effect. Therefore, there is an urgent need for a welding device and welding process for axle housing accessories to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problem in the prior art that when welding bridge housing accessories, it is necessary to fix them to improve the quality of the welding effect. However, the prior art does not have direct reference data on the force on the bridge housing when fixing it. This leads to the problem that when the force fixing the bridge housing is too large, it is easy to damage the surface of the bridge housing. When the force fixing the bridge housing is too small, it is easy to loosen during the welding work, which affects the welding effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bridge housing accessory welding device and welding process, comprising: a bridge housing body, and further comprising:

[0007] A clamping assembly is disposed on the outer surface of the bridge housing body, the clamping assembly comprising:

[0008] Two lifting rods are connected to the outer surface of the axle housing body, and a sealing ring is installed at one end of each lifting rod;

[0009] Two liquid storage tubes are respectively disposed on the outer surface of the two sealing rings, and two connecting pipes are installed at one end of each of the two liquid storage tubes.

[0010] Two sets of valve bodies are respectively connected to one end of the two connecting pipes, and the other end of each set of valve bodies is provided with a liquid storage pipe.

[0011] Two sets of telescopic rods are respectively installed on the inner walls of the two sets of liquid storage tubes, and a clamping block is provided at the other end of each set of telescopic rods;

[0012] The adapter component is disposed on the outside of the bridge housing body;

[0013] The rotating assembly is located outside the axle housing body.

[0014] Preferably, the clamping assembly includes:

[0015] Two sets of pressure sensors are respectively installed on the inner walls of the two sets of clamping blocks. The outer surfaces of the two sets of pressure sensors are respectively connected to both ends of the bridge housing body. Both ends of the bridge housing body are provided with upper steel leaf spring seats and both ends of the bridge housing body are installed with lower steel leaf spring seats.

[0016] Two sets of sealing rings are respectively connected to the outer surfaces of the two sets of telescopic rods, wherein the outer surfaces of the two sets of sealing rings are respectively set on the inner walls of the two sets of liquid storage tubes.

[0017] The technical effect of adopting the above-mentioned further solution is that the setting of the pressure sensor makes it easier to obtain the clamping force of the clamping block on the surface of the bridge housing body, which helps to stop the increase of the clamping force when the appropriate force is reached, thus protecting the bridge housing body.

[0018] Preferably, the clamping assembly further includes:

[0019] Two fixing blocks are respectively connected to the inner walls of the two liquid storage tubes, wherein the outer surfaces of the two fixing blocks are respectively in contact with the outer surfaces of the two lifting rods;

[0020] Two sets of fixing blocks are respectively installed on the inner walls of the two sets of liquid storage tubes, and the outer surfaces of the two sets of fixing blocks are respectively in contact with the outer surfaces of the two sets of telescopic rods;

[0021] Two mounting frames are respectively disposed on the outer surfaces of the two sets of liquid storage tubes 2, and the outer surfaces of the two mounting frames are respectively mounted on the outer surfaces of the two liquid storage tubes 1; two elastic members are connected to the outer surfaces of the two mounting frames.

[0022] The technical effect of adopting the above-mentioned further solution is that the setting of the fixing block one makes it easier to prevent the sealing ring one from moving to the bottom of the liquid storage tube one, thereby avoiding blocking the position where the connecting tube and the liquid storage tube one are connected. The setting of the fixing block two is also to avoid blocking the position where the connecting tube and the liquid storage tube two are connected.

[0023] Preferably, the clamping assembly further includes:

[0024] Two limiting grooves are respectively set on the outer surfaces of the two mounting frames. The inner walls of the two limiting grooves are each connected to two sets of rotating wheels, and the outer surfaces of the two sets of rotating wheels are respectively installed on the inner walls of the two sets of clamping blocks.

[0025] Two sets of universal balls are respectively connected to the outer surfaces of the two sets of clamping blocks, and the balls of the two sets of universal balls are respectively mounted on the outer surfaces of the two mounting frames, and the outer surfaces of the two sets of clamping blocks are respectively mounted on the other ends of the two sets of elastic members.

[0026] The technical effect of adopting the above-mentioned further solution is that the rotating wheel is rotatably connected to the limiting groove, which facilitates the improvement of the flexibility of the rotating wheel moving on the limiting groove.

[0027] Preferably, the rotating assembly includes:

[0028] Two rotating rods are respectively installed on the outer surfaces of the two mounting frames, and each of the two rotating rods is provided with a movable frame at the other end.

[0029] The technical advantages of adopting the above-mentioned further solutions are: the rotating rod is fixedly connected to the mounting frame, which facilitates the enhancement of the stability of the rotating rod driving the mounting frame to rotate; the rotating rod and the moving frame are installed through bearings, which facilitates the improvement of the flexibility of the rotating rod when rotating.

[0030] Preferably, the rotating assembly further includes:

[0031] A worm gear is sleeved on the outer surface of one of the rotating rods, and a worm is connected to the outer surface of the worm gear, the two ends of which are disposed on the inner wall of one of the movable frames;

[0032] A servo motor is disposed on the outer surface of one of the moving frames, wherein the output end of the servo motor is connected to one end of the worm gear.

[0033] The technical effect of adopting the above-mentioned further solution is that the servo motor is fixed on the moving frame, which facilitates the enhancement of the stability of the servo motor.

[0034] Preferably, the adapter component includes:

[0035] A bidirectional threaded rod is disposed on the inner wall of the two movable frames, wherein both ends of the bidirectional threaded rod are connected to a base.

[0036] The technical effect of adopting the above-mentioned further solution is that the two-way threaded rod is threadedly connected to the moving frame, which facilitates the improvement of the stability of the moving frame to move linearly when the two-way threaded rod rotates.

[0037] Preferably, the adapter component further includes:

[0038] Servo motor 2 is mounted on the outer surface of the base, and the output end of servo motor 2 is connected to one end of a bidirectional threaded rod;

[0039] Multiple limiting rods are connected to the outer surface of the base, wherein the outer surface of the multiple limiting rods is provided with two sets of universal balls, and the outer surfaces of the two sets of universal balls are respectively installed on the outer surfaces of two movable frames;

[0040] Two T-shaped bars are respectively set on the outer surface of the two movable frames, and each of the outer surfaces of the two T-shaped bars is connected to a mounting block.

[0041] The technical advantage of adopting the above-mentioned further solution is that the T-shaped strip and the movable frame are slidably installed, which facilitates the improvement of the stability of the T-shaped strip moving linearly within the mounting block.

[0042] Preferably, the adapter component further includes:

[0043] Two suction tubes are respectively installed on the inner walls of the two mounting blocks, wherein the movement of the two suction tubes is connected to a conical cover;

[0044] Two filter blocks are respectively connected to the other end of the two suction pipes, and each of the other ends of the filter blocks is equipped with a blow-out pipe, and the inner wall of each of the two blow-out pipes is equipped with a fan.

[0045] The technical advantages of adopting the above-mentioned further solutions are: the suction pipe is fixedly installed with the mounting block, which facilitates the enhancement of the stability between the suction pipe and the mounting block; the filter block is fixedly connected with the suction pipe, which facilitates the enhancement of the stability of the filter block; and the fan is fixedly installed on the inner wall of the blow-out pipe, which facilitates the improvement of the stability of the fan during operation.

[0046] The present invention also provides a welding process for bridge housing accessories, the process being as follows:

[0047] S1. Control servo motor two to drive the bidirectional threaded rod to rotate clockwise, thereby driving the two moving frames, rotating rod, mounting frame and clamping block to move relative to each other. After the distance between the two sets of clamping blocks is adapted to the length of the bridge housing body, control servo motor two to stop working.

[0048] S2. Place the axle housing body, two upper leaf spring seats, and two lower leaf spring seats between the two sets of clamping blocks. Use the weight of the axle housing body itself to force the lifting rod to descend. At this time, the two valve bodies are in the open state. When the lifting rod moves, it drives the sealing ring one to push the liquid inside the liquid storage tube one through the connecting pipe into the liquid storage tube two. This, in turn, pushes the sealing ring two and the telescopic rod inside the liquid storage tube two to move. When the telescopic rod moves, the clamping block and the pressure sensor move towards the axle housing body. When the pressure sensor and the clamping block are in close contact with the outer surface of the axle housing body, the control valve body is closed. When the clamping block moves, the elastic element deforms.

[0049] S3. After the welding of the upper steel plate spring seat and the external spring is completed, control the servo motor to work clockwise. When the servo motor works, the worm, worm wheel and rotating rod will rotate. When the rotating rod rotates, the mounting frame, clamping block and bridge housing body will rotate, thereby flipping the lower steel plate spring seat 90°. When the welding work starts, control the fan to work. The fan will draw in the air from the filter block and the suction pipe and then discharge it from the blow-out pipe, so that one end of the conical cover will generate a negative pressure effect, which will then draw in the welding fumes and filter them by the filter block.

[0050] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0051] 1. When in use, the present invention pushes the sealing ring 2 and the telescopic rod in the storage tube 2 to move. When the telescopic rod moves, the clamping block and the pressure sensor move towards the axle housing body. When the pressure sensor and the clamping block are in close contact with the outer surface of the axle housing body, the control valve closes to prevent the liquid in the storage tube 1 from flowing back to the connecting pipe and the storage tube 2. This helps to further improve the stability of the clamping block in clamping and fixing the axle housing body, while preventing damage to the axle housing body.

[0052] 2. In use, this invention drives two movable frames, a rotating rod, a mounting frame, and a clamping block to move relative to each other. Once the distance between the two sets of clamping blocks matches the length of the axle housing body, the second servo motor stops working. When the movable frames move, they drive the second universal ball to slide on the limit rod, which helps reduce friction, extend service life, and is suitable for axle housing bodies of different sizes, thus expanding the applicability of this invention. When the mounting frame rotates, it drives the clamping block, the axle housing body, and another rotating rod to rotate, thereby flipping the axle housing body. This facilitates welding work at different positions on the surface of the axle housing body, simplifies the workflow, and improves work efficiency.

[0053] 3. When using this invention, the mounting block and T-shaped strip are moved at the start of welding work so that the conical cover is close to the welding position. Then, the fan is controlled to work at the start of welding work. The fan draws in the air from the filter block and the suction pipe and then discharges it from the blow-out pipe, so that one end of the conical cover generates a negative pressure effect, which in turn draws in the welding fumes, which are then adsorbed and filtered by the activated carbon inside the filter block, which helps to avoid fumes polluting the working environment. Attached Figure Description

[0054] Figure 1 A schematic diagram of a bridge housing accessory welding device and welding process provided by the present invention;

[0055] Figure 2 A bottom view of the axle housing body structure, which is a welding device and welding process for axle housing accessories provided by the present invention.

[0056] Figure 3 A top view of the bridge shell body structure, which is a welding device and welding process for bridge shell accessories provided by the present invention.

[0057] Figure 4 A bottom view of the base structure of a bridge housing accessory welding device and welding process provided by the present invention;

[0058] Figure 5 A partial side view of a welding device and welding process for a bridge housing accessory provided by the present invention;

[0059] Figure 6 A partial cross-sectional view of a bridge housing accessory welding device and welding process provided by the present invention;

[0060] Figure 7 This invention provides a welding device and welding process for bridge housing accessories. Figure 6 Enlarged view of point A;

[0061] Figure 8 This invention provides a welding device and welding process for bridge housing accessories. Figure 4 Enlarged view of point B.

[0062] Legend:

[0063] 1. Bridge housing body; 2. Upper leaf spring seat; 3. Lower leaf spring seat; 4. Base; 401. Limiting rod; 402. Universal ball joint (II); 5. Mounting frame; 501. Rotating rod; 502. Worm gear; 503. Worm; 504. Servo motor (I); 505. Elastic element; 506. Clamping block; 507. Pressure sensor; 508. Liquid storage tube (II); 509. Valve body; 510. Connecting pipe; 511. Liquid storage tube (I); 512. 513. Telescopic rod; 514. Sealing ring II; 515. Fixing block II; 516. Fixing block I; 517. Lifting rod; 518. Sealing ring I; 519. Limiting groove; 520. Rotating wheel; 521. Universal ball I; 6. Moving frame; 701. Mounting block; 702. Suction pipe; 703. Conical cover; 704. Filter block; 705. T-shaped strip; 706. Blowout pipe; 8. Bidirectional threaded rod; 9. Fan; 10. Servo motor II. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] Example 1, such as Figure 1-8 As shown, the present invention provides a technical solution: a bridge housing accessory welding device, comprising: a bridge housing body 1 and a clamping assembly.

[0066] The clamping assembly includes two lifting rods 516. The outer surfaces of the two lifting rods 516 are movably connected to the outer surface of the bridge housing body 1. A sealing ring 517 is fixedly installed at one end of each of the two lifting rods 516. A liquid storage tube 511 is slidably installed on the outer surface of each of the two sealing rings 517. Two connecting pipes 510 are fixedly installed at one end of each of the two sets of connecting pipes 510. A valve body 509 is fixedly connected to one end of each of the two sets of valve bodies 509. A second liquid storage tube 508 is fixedly installed at the other end of each of the two sets of liquid storage tubes 508. Telescopic rods 512 are slidably installed on both walls. Clamping blocks 506 are fixedly installed at the other end of both sets of telescopic rods 512. When the lifting rod 516 is pressed back into the liquid storage tube 1 511, it drives the sealing ring 1 517 to move downward. When the sealing ring 1 517 moves, it pushes the liquid inside the liquid storage tube 1 511 into the connecting pipe 510. At this time, the valve body 509 is in the open state. The liquid inside the connecting pipe 510 enters the liquid storage tube 2 508 after passing through the valve body 509. The liquid pushes the telescopic rods 512 inside the liquid storage tube 2 508 to move linearly.

[0067] It should be noted that pressure sensors 507 are fixedly embedded in the inner walls of both sets of clamping blocks 506. The outer surfaces of the two sets of pressure sensors 507 are movably connected to both ends of the bridge housing body 1. Upper steel leaf spring seats 2 are fixedly installed at both ends of the bridge housing body 1, and lower steel leaf spring seats 3 are fixedly installed at both ends of the bridge housing body 1. Sealing rings 513 are fixedly fitted on the outer surfaces of both sets of telescopic rods 512. The outer surfaces of the two sets of sealing rings 513 are slidably installed on the inner walls of the two sets of liquid storage tubes 508. The liquid entering the liquid storage tubes 508... It will push the sealing ring 513, telescopic rod 512, clamping block 506 and pressure sensor 507 to move linearly. After the pressure sensor 507 comes into contact with the bridge housing body 1, it will feed back pressure data to the external PLC controller to determine the clamping force and avoid excessive clamping force that will deform the bridge housing body 1. After the clamping force reaches the target, the control valve 509 will be closed to prevent the liquid in the first liquid storage pipe 511 from flowing back to the connecting pipe 510 and the second liquid storage pipe 508, which will help to further improve the stability of the clamping block 506 in clamping and fixing the bridge housing body 1.

[0068] In addition, fixing blocks 515 are fixedly installed on the inner walls of the two liquid storage tubes 511, and the outer surfaces of the two fixing blocks 515 are in contact with the outer surfaces of the two lifting rods 516 respectively. Fixing blocks 514 are fixedly installed on the inner walls of the two sets of liquid storage tubes 508, and the outer surfaces of the two sets of fixing blocks 514 are in contact with the outer surfaces of the two sets of telescopic rods 512 respectively. Mounting frames 5 are fixedly installed on the outer surfaces of the two sets of liquid storage tubes 508, and the outer surfaces of the two mounting frames 5 are fixedly installed on the outer surfaces of the two liquid storage tubes 511 respectively. Two elastic elements 505 are fixedly connected to the outer surfaces of the two mounting frames 5, and the mounting frames 5 are used to raise the installation position of the liquid storage tubes 511 and 508.

[0069] As examples, in this embodiment, limit grooves 518 are formed on the outer surfaces of both mounting frames 5. Two sets of rotating wheels 519 are movably connected to the inner walls of both limit grooves 518. The outer surfaces of the two sets of rotating wheels 519 are rotatably mounted on the inner walls of the two sets of clamping blocks 506. Universal balls 520 are fixedly connected to the outer surfaces of both sets of clamping blocks 506. The balls of the two sets of universal balls 520 are movably mounted on the outer surfaces of the two mounting frames 5. The outer surfaces of the two sets of clamping blocks 506 are fixedly mounted on the other ends of the two sets of elastic members 505. The clamping blocks 506 are positioned in a straight... When the line moves, it drives the rotating wheel 519 to rotate in the limiting groove 518, and also drives the universal ball 520 to rotate on the surface of the mounting frame 5, which helps to reduce friction and extend service life. After the welding work is completed, the valve body 509 is opened and the bridge housing body 1 is lifted upward. The elastic force of the elastic element 505 pulls the clamping block 506, telescopic rod 512, rotating wheel 519, universal ball 520 and sealing ring 513 to move linearly, so that the telescopic rod 512 retracts into the liquid storage tube 508, thereby allowing the lifting rod 516 to extend from the liquid storage tube 511.

[0070] In this embodiment, the axle housing body 1, two upper leaf spring seats 2, and two lower leaf spring seats 3 are placed between two sets of clamping blocks 506. The weight of the axle housing body 1 forces the lifting rod 516 to descend. At this time, the two valve bodies 509 are in the open state. When the lifting rod 516 moves, it drives the sealing ring 1 517 to push the liquid inside the liquid storage tube 1 511 through the connecting pipe 510 into the liquid storage tube 2 508. This, in turn, pushes the sealing ring 2 513 and the telescopic rod 512 inside the liquid storage tube 2 508 to move. When the telescopic rod 512 moves, the clamping block 506 and the pressure sensor 507 move towards the axle housing body 1. When the pressure sensor 507 and the clamping block 506 are in close contact with the outer surface of the axle housing body 1, the control valve body 509 is closed. When the clamping block 506 moves, the elastic element 505 deforms.

[0071] Example 2, as Figure 1-8 As shown, the present invention provides a technical solution: a bridge housing accessory welding device, comprising: a rotating assembly.

[0072] It should be noted that the rotating assembly includes two rotating rods 501. One end of each rotating rod 501 is fixedly installed on the outer surface of the two mounting frames 5. The other end of each rotating rod 501 is mounted on a movable frame 6 via a bearing. When the two rotating rods 501 rotate inside the movable frame 6, they drive the two mounting frames 5 to rotate.

[0073] As an example, in this embodiment, a worm gear 502 is fixedly sleeved on the outer surface of one of the rotating rods 501, and a worm 503 is meshed with the outer surface of the worm gear 502. The two ends of the worm 503 are set on the inner wall of one of the movable frames 6 through bearings. When the worm 503 rotates, it drives the worm gear 502 and one of the rotating rods 501 to rotate.

[0074] In addition, a servo motor 504 is fixedly mounted on the outer surface of one of the movable frames 6. The output end of the servo motor 504 is fixedly connected to one end of the worm gear 503. When the servo motor 504 is working, it drives the worm gear 503 to rotate.

[0075] In this embodiment, when the servo motor 504 is working, it drives the worm gear 503, worm wheel 502, one of the rotating rods 501, and the mounting frame 5 to rotate. When the mounting frame 5 rotates, it drives the clamping block 506, the bridge housing body 1, and the other rotating rod 501 to rotate, thereby flipping the bridge housing body 1.

[0076] Example 3, as Figure 1-8 As shown, the present invention provides a technical solution: a bridge housing accessory welding device, comprising: an adapter component.

[0077] The adapter component includes a bidirectional threaded rod 8, the two ends of which are threaded to the inner walls of two movable frames 6. The two ends of the bidirectional threaded rod 8 are connected to the base 4 through bearings. When the bidirectional threaded rod 8 rotates in the base 4, it drives the movable frames 6 to perform relative and opposite movements.

[0078] It should be noted that a servo motor 10 is fixedly installed on the outer surface of the base 4. The output end of the servo motor 10 is fixedly connected to one end of the bidirectional threaded rod 8. Multiple limit rods 401 are fixedly connected to the outer surface of the base 4. Two sets of universal balls 402 are movably arranged on the outer surface of the multiple limit rods 401. The outer surfaces of the two sets of universal balls 402 are respectively fixedly installed on the outer surfaces of the two movable frames 6. When the movable frame 6 moves, it drives the universal balls 402 to slide on the limit rods 401, which helps to reduce friction and extend service life.

[0079] In addition, T-shaped bars 704 are slidably installed on the outer surfaces of the two movable frames 6, and mounting blocks 7 are fixedly connected to the outer surfaces of the two T-shaped bars 704. The movable mounting blocks 7 drive the T-shaped bars 704 to move linearly on the top of the movable frame 6.

[0080] As examples, in this embodiment, the inner walls of both mounting blocks 7 are fixedly connected to suction pipes 701, and the movement of the two suction pipes 701 is fixedly connected to conical covers 702.

[0081] A filter block 703 is fixedly installed at the other end of each of the two suction pipes 701, and an exhaust pipe 705 is fixedly installed at the other end of each of the two filter blocks 703. A fan 9 is installed on the inner wall of each of the two exhaust pipes 705. When the mounting block 7 moves, it drives the suction pipe 701, the conical cover 702, the filter block 703, the exhaust pipe 705 and the fan 9 to move, so as to avoid obstacles when the mounting frame 5 rotates. At the same time, the conical cover 702 can be moved to the vicinity of the welding position.

[0082] In this embodiment, when the welding work begins, the mounting block 7 and the T-shaped strip 704 are moved so that the conical cover 702 is close to the welding position. Then, when the welding work begins, the fan 9 is controlled to work. The fan 9 draws in the air from the filter block 703 and the suction pipe 701 and then discharges it from the blow-out pipe 705, so that one end of the conical cover 702 generates a negative pressure effect, thereby drawing in the welding fumes, which are then adsorbed and filtered by the activated carbon inside the filter block 703.

[0083] The welding process for a bridge housing accessory according to an embodiment of this application is as follows:

[0084] S1. Control the servo motor 2 10 to drive the bidirectional threaded rod 8 to rotate clockwise, thereby driving the two moving frames 6, rotating rod 501, mounting frame 5 and clamping block 506 to move relative to each other. After the distance between the two sets of clamping blocks 506 is adapted to the length of the bridge housing body 1, control the servo motor 2 10 to stop working.

[0085] S2. Place the axle housing body 1, two upper leaf spring seats 2, and two lower leaf spring seats 3 between the two sets of clamping blocks 506. Use the weight of the axle housing body 1 to force the lifting rod 516 to descend. At this time, the two valve bodies 509 are in the open state. When the lifting rod 516 moves, it drives the sealing ring 1 517 to push the liquid inside the liquid storage tube 1 511 through the connecting pipe 510 into the liquid storage tube 2 508. This, in turn, pushes the sealing ring 2 513 and the telescopic rod 512 inside the liquid storage tube 2 508 to move. When the telescopic rod 512 moves, the clamping block 506 and the pressure sensor 507 move towards the axle housing body 1. When the pressure sensor 507 and the clamping block 506 are in close contact with the outer surface of the axle housing body 1, the control valve body 509 is closed. When the clamping block 506 moves, the elastic element 505 deforms.

[0086] S3. After the welding of the upper steel plate spring seat 2 and the external spring is completed, control the servo motor 504 to work clockwise. When the servo motor 504 works, the worm 503, worm wheel 502 and rotating rod 501 will rotate. When the rotating rod 501 rotates, the mounting frame 5, clamping block 506 and bridge housing body 1 will rotate, thereby flipping the lower steel plate spring seat 3 90 degrees. When the welding work starts, control the fan 9 to work. The fan 9 will draw in the air in the filter block 703 and the suction pipe 701 and then discharge it from the blow-out pipe 705, so that one end of the conical cover 702 will generate a negative pressure effect, thereby drawing in the welding fumes, which will then be absorbed and filtered by the filter block 703.

[0087] Working principle: When in use, an external power supply is connected, and the servo motor 10 drives the bidirectional threaded rod 8 to rotate clockwise, thereby causing the two moving frames 6, rotating rod 501, mounting frame 5, and clamping block 506 to move relative to each other. After the distance between the two sets of clamping blocks 506 is adapted to the length of the bridge housing body 1, the servo motor 10 stops working. When the moving frame 6 moves, it drives the universal ball 402 to slide on the limit rod 401, which helps to reduce friction, extend service life, and is beneficial for adapting to bridge housing bodies 1 of different sizes, thus providing the scope of application of this invention. Two upper leaf spring seats 2 and two lower leaf spring seats 3 are placed between two sets of clamping blocks 506. The weight of the bridge housing body 1 forces the lifting rod 516 to descend. At this time, the two valve bodies 509 are in the open state. When the lifting rod 516 moves, it drives the sealing ring 1 517 to push the liquid inside the liquid storage tube 1 511 through the connecting pipe 510 into the liquid storage tube 2 508. This, in turn, pushes the sealing ring 2 513 and the telescopic rod 512 inside the liquid storage tube 2 508 to move. When the telescopic rod 512 moves, the clamping block 506 and the pressure sensor 507 move towards the bridge housing body 1. When the clamping block 506 is in close contact with the outer surface of the bridge housing body 1, the control valve 509 closes to prevent the liquid in the first liquid storage pipe 511 from flowing back to the connecting pipe 510 and the second liquid storage pipe 508. This helps to further improve the stability of the clamping block 506 in clamping and fixing the bridge housing body 1, while preventing damage to the bridge housing body 1. When the first servo motor 504 is working, it drives the worm gear 503, worm wheel 502, one of the rotating rods 501, and the mounting frame 5 to rotate. When the mounting frame 5 rotates, it drives the clamping block 506, the bridge housing body 1, and the other rotating rod 501 to rotate, thereby clamping the bridge housing body 1. Flipping the device facilitates welding at different locations on the surface of the bridge housing 1, simplifying the workflow and improving efficiency. At the start of welding, the mounting block 7 and T-shaped strip 704 are moved so that the conical cover 702 is close to the welding position. Then, at the start of welding, the fan 9 is controlled to operate. The fan 9 draws in air from the filter block 703 and the suction pipe 701 and then discharges it from the blow-out pipe 705, creating a negative pressure effect at one end of the conical cover 702. This allows the welding fumes to enter and be adsorbed and filtered by the activated carbon inside the filter block 703, which helps to prevent the fumes from polluting the working environment.

[0088] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A welding device for bridge housing accessories, comprising: The bridge shell body (1) is characterized in that it further includes: A clamping assembly is disposed on the outer surface of the bridge housing body (1), the clamping assembly comprising: Two lifting rods (516) are connected to the outer surface of the bridge housing body (1), wherein a sealing ring (517) is installed at one end of the two lifting rods (516). Two liquid storage tubes (511) are respectively disposed on the outer surface of the two sealing rings (517), and two connecting tubes (510) are installed at one end of each of the two liquid storage tubes (511). Two sets of valve bodies (509) are respectively connected to one end of the two connecting pipes (510), wherein the other end of the two sets of valve bodies (509) is provided with a liquid storage pipe (508). Two sets of telescopic rods (512) are respectively installed on the inner walls of the two sets of liquid storage tubes (508), and a clamping block (506) is provided at the other end of each set of telescopic rods (512). The clamping assembly includes: Two sets of pressure sensors (507) are respectively installed on the inner walls of the two sets of clamping blocks (506). The outer surfaces of the two sets of pressure sensors (507) are respectively connected to the two ends of the bridge housing body (1). Both ends of the bridge housing body (1) are provided with upper steel plate spring seats (2) and both ends of the bridge housing body (1) are installed with lower steel plate spring seats (3). Two sets of sealing rings (513) are respectively connected to the outer surfaces of the two sets of telescopic rods (512), wherein the outer surfaces of the two sets of sealing rings (513) are respectively set on the inner walls of the two sets of liquid storage tubes (508).

2. The bridge housing accessory welding device according to claim 1, characterized in that: The clamping assembly further includes: Two fixing blocks (515) are respectively connected to the inner walls of the two liquid storage tubes (511), wherein the outer surfaces of the two fixing blocks (515) are respectively in contact with the outer surfaces of the two lifting rods (516); Two sets of fixing blocks (514) are respectively installed on the inner walls of the two sets of liquid storage tubes (508), and the outer surfaces of the two sets of fixing blocks (514) are respectively in contact with the outer surfaces of the two sets of telescopic rods (512); Two mounting frames (5) are respectively set on the outer surface of the two sets of liquid storage tubes (508), and the outer surfaces of the two mounting frames (5) are respectively installed on the outer surfaces of the two liquid storage tubes (511); the outer surfaces of the two mounting frames (5) are each connected to two elastic members (505).

3. The bridge housing accessory welding device according to claim 2, characterized in that: The clamping assembly further includes: Two limiting grooves (518) are respectively set on the outer surface of the two mounting frames (5). The inner walls of the two limiting grooves (518) are connected to two sets of rotating wheels (519). The outer surfaces of the two sets of rotating wheels (519) are respectively installed on the inner walls of the two sets of clamping blocks (506). Two sets of universal balls (520) are respectively connected to the outer surfaces of the two sets of clamping blocks (506), and the balls of the two sets of universal balls (520) are respectively installed on the outer surfaces of the two mounting frames (5), and the outer surfaces of the two sets of clamping blocks (506) are respectively installed on the other end of the two sets of elastic members (505).

4. The bridge housing accessory welding device according to claim 3, characterized in that: Also includes: A rotating assembly is disposed outside the bridge housing body (1), the rotating assembly comprising: Two rotating rods (501) are respectively installed on the outer surfaces of the two mounting frames (5), wherein the other end of each of the two rotating rods (501) is provided with a movable frame (6).

5. The bridge housing accessory welding device according to claim 4, characterized in that: The rotating assembly also includes: A worm gear (502) is sleeved on the outer surface of one of the rotating rods (501), and a worm (503) is connected to the outer surface of the worm gear (502), with both ends of the worm (503) disposed on the inner wall of one of the movable frames (6); A servo motor (504) is disposed on the outer surface of one of the moving frames (6), wherein the output end of the servo motor (504) is connected to one end of the worm gear (503).

6. The bridge housing accessory welding device according to claim 5, characterized in that: Also includes: An adapter component is disposed outside the bridge housing body (1), the adapter component comprising: A bidirectional threaded rod (8) is disposed on the inner wall of the two movable frames (6), wherein the two ends of the bidirectional threaded rod (8) are connected to a base (4).

7. The bridge housing accessory welding device according to claim 6, characterized in that: The adapter components also include: Servo motor 2 (10) is mounted on the outer surface of the base (4), and the output end of servo motor 2 (10) is connected to one end of the bidirectional threaded rod (8); Multiple limiting rods (401) are connected to the outer surface of the base (4). Two sets of universal balls (402) are provided on the outer surface of the multiple limiting rods (401). The outer surfaces of the two sets of universal balls (402) are respectively installed on the outer surfaces of the two movable frames (6). Two T-shaped bars (704) are respectively disposed on the outer surfaces of the two movable frames (6), and mounting blocks (7) are connected to the outer surfaces of the two T-shaped bars (704).

8. The bridge housing accessory welding device according to claim 7, characterized in that: The adapter components also include: Two suction tubes (701) are respectively installed on the inner walls of the two mounting blocks (7), wherein the movement of the two suction tubes (701) is connected to a conical cover (702). Two filter blocks (703) are respectively connected to the other end of the two suction pipes (701), and each of the other ends of the two filter blocks (703) is equipped with a blow-out pipe (705), and the inner wall of each of the two blow-out pipes (705) is equipped with a fan (9).

9. A welding process for an axle housing accessory, comprising the steps described in claim 8: S1. Control servo motor 2 (10) to drive bidirectional threaded rod (8) to rotate clockwise, thereby driving two moving frames (6), rotating rod (501), mounting frame (5) and clamping block (506) to move relative to each other. After the distance between the two sets of clamping blocks (506) is matched with the length of the bridge housing body (1), control servo motor 2 (10) to stop working. S2. Place the bridge housing body (1), two upper leaf spring seats (2), and two lower leaf spring seats (3) between the two sets of clamping blocks (506). Use the weight of the bridge housing body (1) to force the lifting rod (516) to descend. At this time, the two valve bodies (509) are in the open state. When the lifting rod (516) moves, it drives the sealing ring one (517) to push the liquid inside the liquid storage tube one (511) through the connecting pipe (510) into the liquid storage tube two (508). The sealing ring 2 (513) and telescopic rod (512) inside the liquid storage tube 2 (508) are moved. When the telescopic rod (512) moves, the clamping block (506) and pressure sensor (507) move towards the bridge housing body (1). When the pressure sensor (507) and clamping block (506) are in close contact with the outer surface of the bridge housing body (1), the control valve body (509) is closed. When the clamping block (506) moves, the elastic element (505) deforms. S3. After the welding of the upper steel plate spring seat (2) and the external spring is completed, control the servo motor (504) to work clockwise. When the servo motor (504) works, the worm (503), worm wheel (502), and rotating rod (501) will rotate. When the rotating rod (501) rotates, the mounting frame (5), clamping block (506), and bridge housing body (1) will rotate, thereby turning the lower steel plate spring seat (3) 90 degrees. When the welding work starts, control the fan (9) to work. The fan (9) will draw in the air in the filter block (703) and the suction pipe (701) and then discharge it from the blow-out pipe (705), so that one end of the cone cover (702) will generate a negative pressure effect, thereby drawing in the welding fumes, which will then be adsorbed and filtered by the filter block (703).

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