Welding tool for automobile part machining

Abstract

The invention relates to the technical field of welding tools, and discloses a welding tool for automobile part machining, which comprises a welding table, an industrial camera and a welding gun are mounted above the welding table, opposite sliding plates are slidably mounted on the upper end surface of the welding table, and opposite sliding rods are fixedly mounted on the upper end surfaces of the sliding plates; rotating discs are rotatably mounted between the two sliding rods, sleeve rods are fixedly mounted on the side walls, close to each other, of the two rotating discs, and limiting assemblies used for clamping the pipes are arranged on the side walls, away from the sleeve rods, of the rotating discs; a sliding frame is fixedly installed on the upper end face of the sliding plate, and a rotating assembly used for driving the rotating disc to rotate is arranged on one side wall of the sliding frame. The upper end face of the welding table is provided with opposite moving assemblies used for driving the corresponding sliding plates to slide. By means of the structure, after the pipelines are clamped and limited on the sleeve rods and the two pipelines are in butt joint, accurate blowing cleaning can be conducted, and impurities are effectively prevented from being attached to the welding positions of the pipelines.

Description

Technical Field

[0001] This invention relates to the field of welding tooling technology, and more specifically, to a welding tooling for processing automotive parts. Background Technology

[0002] In the production and processing of automotive parts, the welding connection of pipe components is an extremely common process. The welding quality directly affects the overall assembly accuracy and safety of the vehicle. Before welding, the pipe welding end is prone to adhering to impurities such as metal shavings, oil, and dust generated during the production process. These impurities can seriously damage the stability of the weld pool, leading to defects such as slag inclusions, porosity, and incomplete penetration in the weld. Therefore, the pipe welding end must be strictly cleaned. Currently, the industry generally adopts a segmented operation mode for the pre-welding cleaning and subsequent welding operations of automotive pipe components. First, at a dedicated cleaning station, impurities at the pipe welding end are cleaned by grinding, wiping, or solvent cleaning. After cleaning, the pipe is transported to the welding station by manual handling or a simple transfer device. The pipe is then positioned and clamped with the help of welding fixtures before welding operations are carried out. However, during the process of transporting the cleaned pipes to the welding fixture, they will inevitably come into contact with impurities from the transport tools, operators' hands, or the workshop environment again. This causes metal shavings, dust, and other contaminants to re-attach to the pipe welding ends. These secondary contaminants are difficult to detect and remove in time, and will directly affect the weld formation quality and mechanical properties during the welding process, reduce the weld connection strength between the two pipes, and increase the risk of failure in the use of automotive parts. Summary of the Invention

[0003] The purpose of this invention is to provide a welding fixture for processing automotive parts, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A welding fixture for processing automotive parts includes a welding table, an industrial camera and a welding gun mounted on the top of the welding table, opposing sliding plates slidably mounted on the upper end face of the welding table, opposing sliding rods fixedly mounted on the upper end face of the sliding plates, a rotating disk rotatably mounted between the two sliding rods, sleeve rods fixedly mounted on the side walls of the two rotating disks that are close to each other, and a limiting component for clamping the tube on the side wall of the rotating disk away from the sleeve rod. A sliding frame is fixedly installed on the upper end face of the sliding plate, and a rotating component for driving the rotating disk to rotate is provided on one side wall of the sliding frame; The upper surface of the welding station is equipped with a moving component for driving the sliding plate to slide. The welding table has a slot, a filter screen is fixedly installed at the opening of the slot, a fan is fixedly installed inside the slot, a first air outlet is opened on one side wall of the slot, a second air outlet is opened on the other side wall of the slot, and an opening and closing component for opening and closing the slot is provided inside the slot. A rotating tube is rotatably mounted on the upper end face of the welding table. An exhaust box is fixedly mounted on the end of the rotating tube. Multiple exhaust holes are opened on one side wall of the exhaust box. A mounting plate is slidably mounted on the upper end face of the welding table. A reciprocating assembly for driving the rotating tube to continuously rise and fall is provided on the upper end face of the mounting plate. Above the mounting plate is an adjustment assembly for driving the rotating tube to rotate; The upper surface of the welding station is equipped with a displacement assembly for driving the mounting plate to move.

[0005] Preferably, the side wall of the rotating disk has multiple rotating grooves that penetrate the rotating disk, and multiple limiting plates are fixedly installed on the side wall of the rotating disk away from the sleeve rod. A limiting rod is fixedly installed between two limiting plates, and a sliding plate is slidably sleeved between two limiting rods. Multiple sliding rods with one end penetrating the rotating groove are fixedly installed on the side wall of the sliding plate facing the rotating disk, and an arc-shaped plate is installed at the penetrating end of the sliding rod. The limiting assembly includes two rotating seats fixedly installed on one side wall of the rotating disk, and a threaded rod is rotatably installed between the two rotating seats. The threaded rod is threaded through the two sliding plates.

[0006] Preferably, a rotating shaft for the threaded rod to pass through is fixedly installed on the side wall of the rotating disk away from the sleeve rod, and a first gear is fixedly sleeved on the end of the rotating shaft; The rotating assembly includes a first motor fixedly mounted on one side wall of the sliding frame, and a second gear meshing with a first gear is fixedly mounted on the output shaft of the first motor.

[0007] Preferably, a sliding groove is provided on the lower end face of the sliding plate, a corresponding fixed shaft is rotatably mounted on the upper end face of the welding table, a fixed plate is fixedly sleeved on the outer side wall of the fixed shaft, a fixed rod is fixedly installed on the upper end face of the fixed plate near the edge, and a first synchronous wheel is fixedly sleeved on the outer side wall of the fixed shaft. The moving assembly includes two round shafts rotatably mounted on the upper surface of the welding table. A second synchronous pulley is fixedly sleeved on the outer wall of the two round shafts. A synchronous belt is sleeved between the first and second synchronous pulleys. A third gear is fixedly sleeved on the outer wall of the round shafts. A first electric push rod is fixedly mounted on the upper surface of the welding table. A first rack that meshes with the third gear is fixedly mounted on the output shaft of the first electric push rod.

[0008] Preferably, a groove is provided on the side wall opposite the slot, with one end penetrating the welding table. An opening and closing plate with both ends inserted into the corresponding groove is placed in the slot. A bent opening and closing rod with one end inserted into the welding table is fixedly installed on the lower end face of the opening and closing plate. The opening and closing assembly includes a second motor fixedly installed on one side wall of the welding table. The output shaft of the second motor is fixedly mounted with a drive rod, and one end of the drive rod is threaded into the opening and closing rod.

[0009] Preferably, a bent mounting bracket is fixedly installed on the upper end face of the mounting plate, and opposite inserts are fixedly installed on the upper end face of the mounting plate. A fixed tube is rotatably installed at the end of the rotating tube away from the air outlet box. A fixed cylinder is fixedly sleeved on the outer side wall of the fixed tube. Multiple bent rods are fixedly installed on the outer side wall of the fixed cylinder. One end of the bent rod is inserted into the corresponding insert. A horizontal plate is fixedly installed between two bent rods. A vertical rod with its upper end penetrating the mounting bracket is fixedly installed on the upper end face of the horizontal plate. A round block is fixedly installed at the penetrating end of the vertical rod. A spring for pushing the horizontal plate downward is sleeved on the outer side wall of the vertical rod. A vertical plate is fixedly installed on the lower end face of the horizontal plate. A lifting plate is fixedly installed between two vertical plates. The reciprocating assembly includes a lifting frame fixedly mounted on the upper surface of the mounting plate, a third motor fixedly mounted on one side wall of the lifting frame, and a push rod fixedly mounted on the output shaft of the third motor.

[0010] Preferably, a positioning plate is placed on the lower end face of the lifting plate, and a positioning groove is opened on the lower end face of the positioning plate. One end of the positioning plate is bent upward to form a positioning part. A positioning rod that is opposite to and penetrates the corresponding vertical plate is fixedly installed on the side wall of the positioning part facing the vertical plate. A second electric push rod that is opposite to and connected to the positioning part is fixedly installed on the upper end face of the lifting plate.

[0011] Preferably, a locking block is fixedly installed on the outer wall of the rotating tube, a connecting tube is rotatably installed on the outer wall of the fixed cylinder, a connecting ring is fixedly installed at the end of the connecting tube, a slot for the locking block to be inserted is opened on the inner wall of the connecting ring, a connecting plate is fixedly installed on the outer wall of the connecting ring, and a connecting groove penetrating the connecting plate is opened on the outer wall of the connecting plate. The adjustment assembly includes a base plate located above the mounting plate. A base rod is fixedly mounted on the upper end face of the base plate and is connected to the bending rod. A base frame is provided on the upper end face of the base plate. A convex shaft is rotatably mounted on one side wall of the base frame. A connecting plate is fixedly sleeved on the outer side wall of the convex shaft. A connecting rod with one end passing through a connecting groove is fixedly mounted on one side wall of the connecting plate. A fourth gear is fixedly sleeved on the outer side wall of the convex shaft. A third electric push rod is fixedly mounted on the side wall of the base frame. A second rack that meshes with the fourth gear is fixedly mounted on the output shaft of the third electric push rod. A drive component for driving the base frame to lift and lower is provided at the upper end of the base plate.

[0012] Preferably, a vertical plate is fixedly installed on the upper end face of the base plate, and a vertical block is fixedly installed on the side wall of the vertical plate facing the base frame and is inserted into the base frame. The driving component includes a lifting rod rotatably mounted on the upper end face of the base plate, the lifting rod being threaded through the base frame, and a fourth motor for driving the lifting rod to rotate being fixedly mounted on the lower end face of the base frame.

[0013] Preferably, the displacement assembly includes a support frame fixedly installed on one side wall of the welding table. A fourth electric push rod is fixedly installed on the upper end face of the support frame. A hinge block is fixedly installed on the output shaft of the fourth electric push rod. Hinges are hinged to both ends of the hinge block. The lower end of the hinge rod is hinged to the upper end face of the mounting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, after the pipe is fitted onto the sleeve rod and clamped and limited, the weld end can be cleaned by precise air blowing through the air outlet box without the need for transportation. The airflow is ejected through multiple sets of exhaust holes, and with the reciprocating lifting and rotation adjustment, it can thoroughly remove metal debris, dust and other impurities. After the pipe is connected, the weld can be cleaned again by blowing air to avoid defects such as slag inclusions and porosity in the weld caused by secondary pollution, which significantly improves the weld formation quality and mechanical properties and reduces the risk of failure in automotive parts.

[0015] 2. In this invention, the limiting component clamps the pipe by rotating the threaded rod. The first electric push rod of the moving component drives the first rack to move, which in turn drives the third gear, the round shaft, and the second synchronous pulley to rotate. Through synchronous belt transmission, the first synchronous pulley drives the fixed shaft and the fixed disk to rotate. The fixed rod, in conjunction with the sliding groove, pushes the sliding plate to move precisely, achieving pipe docking. During welding, the first motor drives the rotating disk to rotate the pipe synchronously through gear meshing. The fifth electric push rod drives the welding torch to move down for welding. The entire process is seamless. Compared with the traditional manual cleaning, handling, and positioning mode, it significantly shortens the process time, reduces labor intensity, and significantly improves production efficiency, making it suitable for mass production needs.

[0016] 3. In this invention, the rotating disk rotates in conjunction with the sliding rod through a T-shaped mounting groove. The first motor drives the second gear to mesh with the first gear, thereby driving the rotating shaft and the rotating disk to rotate smoothly. This ensures that there is no shaking during the rotation of the pipeline, allowing the welding torch to weld the joints evenly, effectively improving the welding assembly accuracy and connection stability, and ensuring the safety of automotive parts.

[0017] 4. In this invention, the fourth electric push rod of the displacement component can drive the mounting plate to move the air outlet box precisely to the pipe gap or above the weld. The third motor of the reciprocating component drives the push rod to rotate, lifting the lifting plate and cooperating with the spring to reset, realizing the continuous lifting and lowering of the air outlet box, and comprehensively cleaning different height positions of the pipe end face. The adjustment component drives the second rack to mesh with the fourth gear through the third electric push rod, driving the cam shaft, connecting plate and connecting rod to swing. In conjunction with the fourth motor driving the lifting rod to adjust the height of the base frame, the rotating pipe and the air outlet box can be rotated, flexibly switching the direction of the exhaust hole. It can clean the pipe end face and also perform circumferential cleaning of the weld, with strong versatility.

[0018] 5. In this invention, the industrial camera can acquire real-time image information such as welding arc, molten pool morphology, temperature distribution, and weld formation process, facilitating timely adjustment of welding parameters and ensuring stable welding quality. Welding fumes can interfere with detection. At this time, the solenoid valve of the second vent is closed, the second motor of the opening and closing assembly drives the drive rod to rotate, which in turn moves the opening and closing rod and the opening and closing plate, releasing the closure of the slot. The fan switches to suction mode, drawing the fumes into the slot, through the corrugated pipe, rotating pipe, and vent box, into the guide box, and then out through the guide pipe. This not only avoids the fumes affecting the detection accuracy of the industrial camera but also improves the workshop working environment and reduces the health hazards of fumes to operators. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a welding fixture for processing automotive parts according to the present invention.

[0020] Figure 2 This is a schematic diagram of a half-section of the welding station in this invention.

[0021] Figure 3 This is a schematic diagram of a half-section of the rotating disk in this invention.

[0022] Figure 4 This is a schematic diagram of the structure of the first rack and the third gear in this invention.

[0023] Figure 5 This is a schematic diagram of the structure of the first and second synchronous pulleys in this invention.

[0024] Figure 6 This is a schematic diagram of the structure of the fixed disk in this invention.

[0025] Figure 7 This is a schematic diagram of the rotating shaft and sliding plate in this invention.

[0026] Figure 8 This is a schematic diagram of the slide bar and arc plate in this invention.

[0027] Figure 9 This is a schematic diagram of the structure of the second gear in this invention.

[0028] Figure 10 This is a schematic diagram of the support frame in this invention.

[0029] Figure 11 This is a schematic diagram of the mounting plate in this invention.

[0030] Figure 12 This is a schematic diagram of the structure of the horizontal plate and spring in this invention.

[0031] Figure 13 This is a schematic diagram of the third motor and push rod in this invention.

[0032] Figure 14 This is a schematic diagram of the structure of the fourth gear and the fourth rack in this invention.

[0033] Figure 15 This is an exploded structural diagram of the base frame and base plate in this invention.

[0034] Figure 16 This is a half-sectional schematic diagram of the fixed tube and fixed cylinder in this invention.

[0035] The meanings of the labels in the diagram are as follows: 10. Welding table; 11. Rotary disk; 12. Fixed disk; 13. Support frame; 14. Positioning frame; 15. Industrial camera; 16. Connecting frame; 17. Welding torch; 18. Filter screen; 19. Guide rod; 20. Sliding plate; 21. Sliding rod; 22. Arc plate; 23. Fan; 24. Opening and closing plate; 25. Opening and closing rod; 26. Drive rod; 28. Second motor; 29. ​​Sliding frame; 30. First motor; 31. Slide plate; 32. Limiting rod; 33. Limiting plate; 34. First rack; 35. Guide block; 36. First electric push rod; 37. Third gear; 38. Synchronous belt; 39. First synchronous pulley; 40. Second synchronous pulley. 41. Wheel; 42. Fixed rod; 43. Sliding groove; 44. Rotating shaft; 45. First gear; 46. Threaded rod; 47. Rotating seat; 48. Nut; 49. Slide rod; 50. Second gear; 51. Bellows; 52. Fixed tube; 53. Hinge block; 54. Locking rod; 55. Fourth electric push rod; 56. Bracket; 57. Rotating tube; 58. Guide box; 59. Guide tube; 60. Hinge rod; 61. Mounting plate; 62. Mounting bracket; 63. Vertical rod; 64. Insert cylinder; 65. Bending rod; 66. Lifting plate; 67. Positioning plate; 68. Second electric push rod; 69. Positioning rod; 70. Vertical plate; 71. Spring; 72. Round block; 74. Lifting frame; 75. Fixed cylinder; 76. Horizontal plate; 77. Third motor; 78. Push rod; 79. Locking block; 80. Connecting ring; 81. Connecting plate; 82. Connecting plate; 83. Connecting rod; 84. Fourth gear; 85. Third electric push rod; 86. Second rack; 87. Lifting rod; 88. Fourth motor; 89. Base rod; 90. Base frame; 91. Vertical block; 92. Connecting pipe; 93. Base plate; 94. Fifth electric push rod. Detailed Implementation

[0036] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0037] The following is in conjunction with the appendix Figures 1-16 This embodiment will be described in further detail.

[0038] A welding fixture for processing automotive parts in this embodiment includes a welding table 10. An industrial camera 15 and a welding torch 17 are mounted on the top of the welding table 10. Opposite sliding plates 20 are slidably mounted on the upper end surface of the welding table 10. Opposite sliding rods 21 are fixedly mounted on the upper end surface of the sliding plates 20. A rotating disk 11 is rotatably mounted between the two sliding rods 21. A sleeve rod for sleeved tubes is fixedly mounted on the side wall of the two rotating disks 11 that are close to each other. A limiting component for clamping the tube is provided on the side wall of the rotating disk 11 away from the sleeve rod. A sliding frame 29 is fixedly installed on the upper end face of the sliding plate 20, and a rotating component for driving the rotating disk 11 to rotate is provided on one side wall of the sliding frame 29. The upper surface of the welding table 10 is provided with a moving component that is opposite to and used to drive the corresponding sliding plate 20 to slide. The welding table 10 has an upward-facing slot, a filter screen 18 is fixedly installed at the opening of the slot, a fan 23 is fixedly installed inside the slot, a first air outlet hole is opened on one side wall of the slot and a second air outlet hole is opened on the other side wall of the slot and an opening and closing component is provided inside the slot for opening and closing the slot. A rotating tube 57 connected to the first vent hole is rotatably mounted on the upper end face of the welding table 10. A vent box is fixedly mounted on the end of the rotating tube 57. Multiple vent holes are opened on one side wall of the vent box. A mounting plate 61 is slidably mounted on the upper end face of the welding table 10. A reciprocating assembly for driving the rotating tube 57 to continuously rise and fall is provided on the upper end face of the mounting plate 61. Above the mounting plate 61 is an adjustment assembly for driving the rotating tube 57 to rotate; The upper surface of the welding table 10 is provided with a displacement component for driving the mounting plate 61 to move.

[0039] In this embodiment, when welding two pipes is required, the two pipes are respectively fitted onto corresponding sleeve rods. Then, the limiting component on the rotating disk 11 clamps and limits the pipes on the sleeve rods, thus achieving the installation of the pipes on the sleeve rods. At this time, the moving component drives the two sliding plates 20 to move closer to each other. The movement of the two sliding plates 20 drives the two rotating disks 11 to move via the sliding rod 21. The movement of the two rotating disks 11 drives the two pipes to move closer to each other via the sleeve rods. When the two pipes move closer to each other and a certain gap is formed between them, the displacement component drives the mounting plate 61 to move on the welding table 10. When the mounting plate 61 moves towards the pipe, the movement of the mounting plate 61 can drive the rotating tube 57 towards the pipe. As the rotating pipe 57 moves to the space between the two pipes, the fan 23 starts working. Outside air enters the slot through the second air outlet, and the air in the slot is blown by the fan 23 towards the first air outlet. At this time, the airflow from the first air outlet enters the rotating pipe 57, then enters the air outlet box and is discharged through the exhaust port. This discharged airflow cleans the end face of one of the pipes, blowing off dust or particles. While cleaning the pipe end face, the reciprocating assembly drives the rotating pipe 57 to continuously rise and fall. The rising and falling of the rotating pipe 57 causes the air outlet box to continuously rise and fall, allowing the airflow discharged from the air outlet box to clean dust or particles at different locations on the pipe end face. The cleaning process begins. After cleaning one end face of a pipe, the rotating tube 57 is driven to rotate by the adjusting component. The rotating tube 57 drives the vent box to rotate. When the vent hole on the vent box faces the end face of the other pipe, the end face of the other pipe can be cleaned using the same steps. After cleaning the end faces of both pipes, the displacement component drives the mounting plate 61 to move the rotating tube 57 away from the pipes, so that the vent box is not located between the two pipes. At this time, the moving component drives the two sliding plates 20 to move, so that the sliding plates 20 can drive the pipes to move via the sleeve rod. When the end faces of the two pipes are in contact, the reciprocating component drives the rotating tube 57 to move upward to a certain height and maintains the height after the upward movement. In this operation, the displacement component drives the mounting plate 61 to move, positioning the air outlet box on the rotating tube 57 above the two pipes. Then, the adjusting component drives the rotating tube 57 to rotate, causing the air outlet box to rotate so that its exhaust holes face the two pipes. The airflow from the exhaust holes cleans the welded joints of the two pipes, blowing away dust and particles. While cleaning the welded joints, the rotating component drives the rotating disk 11 to rotate continuously. Because the limiting component limits the pipes to the corresponding sleeve rods, when the rotating disk 11 drives the sleeve rods to rotate, the sleeve rods can drive the corresponding pipes to rotate. When both pipes rotate...The airflow from the vent can clean dust or particles from different areas of the weld. After cleaning, the displacement component drives the rotating tube 57 to move, ensuring that the air outlet box on the rotating tube 57 is not directly above the pipe. Once the pipes are cleaned, the welding torch 17 can weld the joint between the two pipes. When the welding torch 17 is welding the pipes, the rotating component will drive the two pipes to rotate synchronously, so that the welding torch 17 can weld the joint between the two pipes evenly. When the welding torch 17 is welding, the industrial camera 15 above the welding table 10 will detect the welding effect of the pipes in real time and collect image information such as the shape of the electric arc, the molten pool, the temperature distribution, and the weld formation process. The second vent is equipped with a solenoid valve. When the welding torch 17 welds the pipe, it will generate smoke. This smoke will affect the use of the industrial camera 15. To avoid this, the solenoid valve closes the second vent. At the same time, the opening and closing component releases the closure of the groove. At this time, the fan 23 will start to draw air into the groove opening, so that the welding smoke will enter the groove and be discharged through the rotating pipe 57 and the vent box, thus preventing the smoke from drifting toward the industrial camera 15 and affecting its use. Among them, the filter screen 18 protects the opening from falling into the opening when it is opened; When the welding of the two pipes is completed, the rotating component releases the drive of the rotating disk 11, the limiting component releases the clamping limit on the pipe, and then the moving component drives the two sliding plates 20 to move away from each other. At this time, the worker can remove the welded pipe from between the two sleeve rods. Compared with the existing ones, this type of welding fixture for processing automotive parts can perform precise air blowing cleaning after the pipe is clamped and limited on the sleeve rod and after the two pipes are connected, effectively preventing impurities from adhering to the pipe welding joint and ensuring the welding effect. The rotating disk 11 has a T-shaped cross-section, and the side wall of the sliding rod 21 has a T-shaped mounting groove. By inserting the edge of the rotating disk 11 into the corresponding mounting groove, the rotating disk 11 can be rotated between the two sliding rods 21.

[0040] In this embodiment, the side wall of the rotating disk 11 is provided with a plurality of rotating grooves that penetrate the rotating disk 11. A plurality of limiting plates 33 are fixedly installed on the side wall of the rotating disk 11 away from the sleeve rod. A limiting rod 32 is fixedly installed between two limiting plates 33. A sliding plate 31 is slidably sleeved between two limiting rods 32. A plurality of sliding rods 48 with one end penetrating the rotating groove are fixedly installed on the side wall of the sliding plate 31 facing the rotating disk 11. An arc plate 22 is installed at the penetrating end of the sliding rod 48. The limiting assembly includes two rotating seats 46 fixedly installed on one side wall of the rotating disk 11, and a threaded rod 45 is rotatably installed between the two rotating seats 46. The threaded rod 45 is threaded through the two sliding plates 31.

[0041] In this embodiment, the rotating groove is vertically arranged, and the limiting rod 32 is installed on the side wall of the rotating disk 11 through the limiting plate 33. The two ends of the threaded rod 45 are rotatably installed in the corresponding rotating seat 46 through bearings. The two limiting rods 32 limit the sliding plate 31. When the threaded rod 45 rotates, the threaded rod 45 can drive the two sliding plates 31 to move closer or further away from each other. When the two sliding plates 31 move closer to each other, the sliding plate 31 can drive the sliding rod 48 to move along the height of the rotating groove. That is, the sliding rod 48 drives the arc plate 22 to move towards the pipe on the sleeve rod. When the arc plate 22 is pressed against the side wall of the pipe, the arc plate 22 clamps and limits the pipe on the sleeve rod. When the threaded rod 45 drives the two sliding plates 31 to move away from each other, the sliding plate 31 can drive the arc plate 22 away from the pipe on the sleeve rod through the sliding rod 48. At this time, the arc plate 22 releases the clamping and limiting of the pipe. Both ends of the threaded rod 45 pass through the rotating seat 46, and a handle is fixedly installed at each of the through ends of the threaded rod 45, which facilitates the rotation of the threaded rod 45. The threaded rod 45 has a nut 47 threadedly fitted at its through end. When the arc plate 22 clamps and limits the pipe, the nut 47 on the threaded rod 45 is rotated to make the nut 47 abut against the side wall of the rotating seat 46, thereby preventing the threaded rod 45 from rotating erroneously and causing the arc plate 22 to release the clamping and limiting of the pipe. When the nut 47 is rotated to release the abutment between the nut 47 and the side wall of the rotating seat 46, the limiting of the threaded rod 45 is released. At this time, the threaded rod 45 can be easily driven to rotate by turning the hand.

[0042] In this embodiment, a rotating shaft 43 for the threaded rod 45 to pass through is fixedly installed on the side wall of the rotating disk 11 away from the sleeve rod, and a first gear 44 is fixedly sleeved at the end of the rotating shaft 43. The rotating assembly includes a first motor 30 fixedly mounted on one side wall of the sliding frame 29, and a second gear 49 that meshes with a first gear 44 is fixedly mounted on the output shaft of the first motor 30.

[0043] In this embodiment, when the output shaft of the first motor 30 drives the second gear 49 to rotate, the second gear 49 can drive the first gear 44 to rotate, and the first gear 44 drives the rotating shaft 43 to rotate, that is, the rotating shaft 43 drives the rotating disk 11 to rotate.

[0044] In this embodiment, multiple guide seats are fixedly installed on the upper end face of the welding table 10, and a guide rod 19 that penetrates the sliding plate 20 is fixedly installed between two guide seats. A sliding groove 42 is opened on the lower end face of the sliding plate 20. Opposite fixed shafts are rotatably installed on the upper end face of the welding table 10. A fixed plate 12 is fixedly sleeved on the outer side wall of the fixed shaft. A fixed rod 41 is fixedly installed on the upper end face of the fixed plate 12 near the edge. A first synchronous wheel 39 is fixedly sleeved on the outer side wall of the fixed shaft. The moving assembly includes two round shafts rotatably mounted on the upper surface of the welding table 10. A second synchronous pulley 40 is fixedly sleeved on the outer side wall of the two round shafts. A synchronous belt 38 is sleeved between the first synchronous pulley 39 and the second synchronous pulley 40. A third gear 37 is fixedly sleeved on the outer side wall of the round shafts. A first electric push rod 36 is fixedly mounted on the upper surface of the welding table 10. A first rack 34 that meshes with the third gear 37 is fixedly mounted on the output shaft of the first electric push rod 36.

[0045] In this embodiment, the guide rod 19 is mounted on the upper surface of the welding table 10 via the guide seat. The sliding groove 42 is arranged along the length direction of the sliding plate 20. The fixed shaft is rotatably mounted on the welding table 10 via the bearing. The round shaft is rotatably mounted inside the welding table 10 via the bearing. When the first electric push rod 36 drives the first rack 34 to move, the moving first rack 34 can drive the third gear 37 to rotate. The rotation of the third gear 37 can drive the round shaft to rotate. The round shaft drives the second synchronous wheel 40 to rotate. The second synchronous wheel 40 drives the first synchronous wheel 39 to rotate via the synchronous belt 38. The first synchronous wheel 39 drives the fixed shaft to rotate. The rotation of the fixed shaft drives the fixed disk 12 to rotate. Since the guide rod 19 limits the sliding plate 20, when the fixed disk 12 rotates and drives the fixed rod 41 to move, the fixed rod 41, through its cooperation with the sliding groove 42, can drive the sliding plate 20 away from or close to the first electric push rod 36. The upper surface of the welding table 10 is fixedly equipped with a corresponding guide block 35. The upper end of the guide block 35 is inserted into the corresponding first rack 34. The guide block 35 limits the movement of the first rack 34, making the movement of the first rack 34 more stable.

[0046] In this embodiment, a groove is provided on the side wall opposite the slot, with one end penetrating the welding table 10. An opening and closing plate 24 with both ends inserted into the corresponding groove is placed in the slot. A bent opening and closing rod 25 with one end inserted into the welding table 10 is fixedly installed on the lower end surface of the opening and closing plate 24. The opening and closing assembly includes a second motor 28 fixedly installed on one side wall of the welding table 10. The output shaft of the second motor 28 is fixedly installed with a drive rod 26, and one end of the drive rod 26 is threaded into the opening and closing rod 25.

[0047] In this embodiment, the groove limits the opening and closing plate 24, thus limiting the opening and closing rod 25 as well. When the second motor 28 drives the drive rod 26 to rotate, the drive rod 26 can drive the opening and closing rod 25 to move. When the opening and closing rod 25 moves away from the drive rod 26, the drive rod 26 moves and drives the opening and closing plate 24 away from the drive rod 26. At this time, the opening and closing plate 24 releases the closure of the slot. When the drive rod 26 drives the opening and closing rod 25 to move toward the drive rod 26, the opening and closing rod 25 drives the opening and closing plate 24 to move toward the drive rod 26. At this time, the opening and closing plate 24 closes the opening of the slot.

[0048] In this embodiment, a bent mounting bracket 62 is fixedly installed on the upper end face of the mounting plate 61, and opposite inserts 64 are fixedly installed on the upper end face of the mounting plate 61. A fixed tube 51 is rotatably installed at the end of the rotating tube 57 away from the air outlet box. A fixed cylinder 75 is fixedly sleeved on the outer side wall of the fixed tube 51. Multiple bent rods 65 are fixedly installed on the outer side wall of the fixed cylinder 75. One end of the bent rod 65 is inserted into the corresponding insert 64. A horizontal plate 76 is fixedly installed between two bent rods 65. A vertical rod 63 with its upper end penetrating the mounting bracket 62 is fixedly installed on the upper end face of the horizontal plate 76. A round block 72 is fixedly installed at the penetrating end of the vertical rod 63. A spring 71 for pushing the horizontal plate 76 downward is sleeved on the outer side wall of the vertical rod 63. A vertical plate 70 is fixedly installed on the lower end face of the horizontal plate 76. A lifting plate 66 is fixedly installed between two vertical plates 70. The reciprocating assembly includes a lifting frame 74 fixedly mounted on the upper end face of the mounting plate 61, a third motor 77 fixedly mounted on one side wall of the lifting frame 74, and a push rod 78 fixedly mounted on the output shaft of the third motor 77.

[0049] In this embodiment, the fixed tube 51 and the rotating tube 57 are connected by a bearing. The lower end of the bent rod 65 is inserted into the insert 64 to realize the lifting and lowering installation of the fixed tube 75 above the mounting plate 61. That is, the fixed tube 51 and the rotating tube 57 are installed. The spring 71 always applies downward pressure to the horizontal plate 76, so that the lifting plate 66 and the rotating tube 57 connected to it are in the initial position to be lifted. When the third motor 77 drives the push rod 78 to rotate, the push rod 78 will move toward the lifting plate 66 and contact the lower surface. As the push rod 78 continues to rotate, it will lift the lifting plate 66, thereby driving the horizontal plate 76 to move upward against the force of the spring 71 through the vertical plate 70. The upward movement of the horizontal plate 76 is transmitted to the rotating tube 57 through the bent rod 65 and the fixed tube 75, so that it moves upward synchronously. When the push rod 78 rotates through a certain angle, it begins to move away from the lifting plate 66. The spring 71 then releases its stored force, pushing the horizontal plate 76 downward, thereby driving the entire transmission chain and the rotating tube 57 to reset. Through the continuous cycle of this process, the rotating tube 57 can achieve stable and repetitive up-and-down reciprocating motion. Among them, the downward movement of the horizontal plate 76 will cause the vertical rod 63 to move downward. The circular block 72 on the vertical rod 63 will limit the downward movement of the vertical rod 63, thereby preventing the horizontal plate 76 from causing the vertical rod 63 to move downward too much. One end of the fixed pipe 51 is fixedly installed with a corrugated pipe 50. One end of the corrugated pipe 50 is fixedly connected to the side wall of the welding table 10 and is connected to the first vent hole.

[0050] In this embodiment, a positioning plate 67 is placed on the lower end face of the lifting plate 66. A positioning groove is opened on the lower end face of the positioning plate 67. One end of the positioning plate 67 is bent upward to form a positioning part. A positioning rod 69 that is opposite to and penetrates the corresponding vertical plate 70 is fixedly installed on the side wall of the positioning part facing the vertical plate 70. A second electric push rod 68 that is opposite to and connected to the positioning part is fixedly installed on the upper end face of the lifting plate 66.

[0051] In this embodiment, the positioning rod 69 on the positioning part passes through the vertical plate 70 to realize the installation of the positioning plate 67 on the lower end face of the lifting plate 66. When it is necessary to raise the rotating tube 57 and keep it in the upper position, the positioning plate 67 is first pushed horizontally to the top of the push rod 78 by the second electric push rod 68. Then the third motor 77 is started to make the push rod 78 rotate and push the positioning plate 67 upward. After the positioning plate 67 is pushed, it drives the lifting plate 66, the horizontal plate 76, the bending rod 65 and the fixed cylinder 75 to rise, so that the rotating tube 57 moves upward synchronously. When the push rod 78 reaches the highest point with the rotation, its end just fits into the positioning groove of the positioning plate 67. At this time, the rotating tube 57 can maintain the state after moving upward. When the lock needs to be released, the positioning plate 67 is pulled horizontally away from the push rod 78 by the second electric push rod 68, and the end of the push rod 78 is dislodged from the positioning groove. At this time, the rotating tube 57 can be restored to its initial position.

[0052] In this embodiment, a locking block 79 is fixedly installed on the outer side wall of the rotating tube 57, a connecting tube 92 is rotatably installed on the outer side wall of the fixed cylinder 75, a connecting ring 80 is fixedly installed at the end of the connecting tube 92, a slot for the locking block 79 to be inserted is opened on the inner side wall of the connecting ring 80, a connecting plate 81 is fixedly installed on the outer side wall of the connecting ring 80, and a connecting groove penetrating the connecting plate 81 is opened on the outer side wall of the connecting plate 81. The adjustment assembly includes a base plate 93 located above the mounting plate 61. A base rod 89, which is opposite to and connected to the bending rod 65, is fixedly installed on the upper end surface of the base plate 93. A base frame 90 is provided on the upper end surface of the base plate 93. A convex shaft is rotatably installed on one side wall of the base frame 90. A connecting plate 82 is fixedly sleeved on the outer side wall of the convex shaft. A connecting rod 83 with one end passing through a connecting groove is fixedly installed on one side wall of the connecting plate 82. A fourth gear 84 is fixedly sleeved on the outer side wall of the convex shaft. A third electric push rod 85 is fixedly installed on the side wall of the base frame 90. A second rack 86 that meshes with the fourth gear 84 is fixedly installed on the output shaft of the third electric push rod 85. A drive component for driving the base frame 90 to lift and lower is provided at the upper end of the base plate 93.

[0053] In this embodiment, the connecting groove is arranged along the length of the connecting plate 81. The base plate 93 is installed above the mounting plate 61 via the base rod 89 connected to the bent rod 65. The connecting pipe 92 is connected to the outer wall of the fixed cylinder 75 via a bearing. The cam shaft is rotatably mounted on the side wall of the base frame 90 via a bearing. When the exhaust hole faces the pipe, the second rack 86 is moved by the third electric push rod 85. The movement of the second rack 86 can drive the fourth gear 84 on the cam shaft to rotate, that is, the fourth gear 84 drives the cam shaft to rotate. The rotation of the cam shaft can drive the connecting plate 82 to swing. The swing of the connecting plate 82 can move the connecting rod 83. The connecting rod 83, through its cooperation with the connecting groove, can move the connecting plate. 81 moves along the circumference of the connecting ring 80, that is, the connecting plate 81 drives the connecting ring 80 to rotate. The rotation of the connecting ring 80, through the cooperation of the locking block 79 and the locking groove, enables the rotating tube 57 to rotate. That is, the rotating tube 57 drives the exhaust hole on the air outlet box to rotate towards the end face of the pipe. When the third electric push rod 85 stops working, the exhaust hole on the air outlet box cannot face the end face of the pipe. At this time, the base frame 90 is driven to move upward through the driving component. The upward movement of the base frame 90 is driven by the protruding rod, the connecting plate 82 and the connecting rod 83. The upward movement of the connecting rod 83 drives the connecting plate 81 to rotate. The connecting plate 81 then drives the rotating tube 57 to rotate through the connecting ring 80, so that the exhaust hole on the air outlet box can face the end face of the pipe. When it is necessary to drive the exhaust port toward the pipe, the drive unit drives the base frame 90 to move down to the initial position. Then, the second rack 86 is driven to move by the third electric push rod 85. The second rack 86 pushes the fourth gear 84 to drive the connecting plate 82 to a vertical state. At this time, the exhaust port is facing the pipe.

[0054] In this embodiment, a vertical plate is fixedly installed on the upper end face of the base plate 93, and a vertical block 91 is fixedly installed on the side wall of the vertical plate facing the base frame 90 and is inserted into the base frame 90. The driving component includes a lifting rod 87 rotatably mounted on the upper end face of the base plate 93. The lifting rod 87 is threaded through the base frame 90. A fourth motor 88 for driving the lifting rod 87 to rotate is fixedly mounted on the lower end face of the base frame 90.

[0055] In this embodiment, the base frame 90 is limited by the upright block 91, and the lifting rod 87 is rotatably mounted on the base plate 93 through the bearing. When the fourth motor 88 drives the lifting rod 87 to rotate, the lifting rod 87 can drive the base frame 90 to rise and fall.

[0056] In this embodiment, the displacement component includes a support frame 13 fixedly installed on one side wall of the welding table 10. A fourth electric push rod 54 is fixedly installed on the upper end surface of the support frame 13. A hinge block 52 is fixedly installed on the output shaft of the fourth electric push rod 54. Hinges 60 are hinged to both ends of the hinge block 52. The lower end of the hinge rod 60 is hinged to the upper end surface of the mounting plate 61.

[0057] In this embodiment, when the fourth electric push rod 54 drives the hinge block 52 to move downward, the hinge block 52 can push the mounting plate 61 closer to the pipe through the hinge rod 60. When the fourth electric push rod 54 drives the hinge block 52 to move upward, the hinge block 52 can pull the mounting plate 61 away from the pipe through the hinge rod 60. Among them, the support frame 13 is fixedly installed with a locking rod 53 that is opposite to and penetrates the hinge block 52 on the side wall facing the hinge block 52. The locking rod 53 limits the lifting and lowering of the hinge block 52, so that the lifting and lowering of the hinge block 52 is relatively stable. Among them, the upper end face of the welding table 10 is fixedly installed with opposite snap-fit ​​plates. One end of the two snap-fit ​​plates is snapped into the mounting plate 61. The snap-fit ​​plates limit the movement of the mounting plate 61, making the movement of the mounting plate 61 more stable. The hinge block 52 has hinge shafts fixedly installed at both ends. The upper end of the hinge rod 60 is sleeved on the corresponding hinge shaft through a bearing. The upper end face of the mounting plate 61 has a hinge seat that is opposite to and allows the lower end of the corresponding hinge rod 60 to be inserted. A rod that passes through the corresponding hinge rod 60 is fixedly installed in the hinge seat, so as to realize the hinge connection between the two ends of the hinge rod 60 and the hinge block 52 and the mounting plate 61.

[0058] In this embodiment, a positioning frame 14 is fixedly installed on the upper end face of the support frame 13, and an industrial camera 15 is fixedly installed on the positioning frame 14. A bracket 56 is fixedly installed on the side wall of the positioning frame 14 away from the support frame 13. A fifth electric push rod 94 is fixedly installed on the upper end face of the bracket 56. A connecting frame 16 is fixedly installed in the output of the fifth electric push rod 94. The connecting frame 16 is fixedly connected to the welding gun 17, so that the fifth electric push rod 94 can drive the connecting frame 16 to move. When the connecting frame 16 drives the welding gun 17 to approach the pipe, the pipe can be welded. When the connecting frame 16 drives the welding gun 17 away from the pipe, the welding of the pipe is released. The support frame 13 is fixedly equipped with a guide box 58, and the gas box is fixedly equipped with a guide tube 59. When the welding torch 17 welds the pipe, the side wall of the gas box is tightly fitted with the side wall of the guide box 58, so that the exhaust hole on the gas box faces the guide box 58. This allows the smoke in the gas box to flow into the guide box 58 through the exhaust hole. The smoke in the guide box 58 is then guided to other places through the guide tube 59, preventing the smoke from lingering on the welding table 10 and affecting the use of the industrial camera 15.

[0059] In actual use, during operation, the two pipes are first fitted onto the sleeves of the rotating disk 11. Rotating the threaded rod 45 drives the arc-shaped plate 22 to clamp the pipes, completing the positioning. The moving assembly is then activated, driving the fixed disk 12 to rotate via the first synchronous wheel 39, the second synchronous wheel 40, and the synchronous belt 38. The fixed rod 41, in conjunction with the sliding groove 42, pushes the sliding plate 20 closer, creating a preset gap between the two pipe ends. The displacement assembly drives the mounting plate 61 to move, sending the air outlet box to the gap between the two pipes. The fan 23 starts, and airflow enters the air outlet box through the second air outlet, the groove, and the first air outlet, exiting through the exhaust port. The reciprocating assembly drives the air outlet box to rise and fall, thoroughly cleaning impurities from the pipe ends and adjusting... The component drives the exhaust box to rotate, completing the cleaning of the other pipe end face. After cleaning, the exhaust box moves away from the gap, the two pipe end faces are in contact, the exhaust box rises above the welding point, the rotating component drives the pipe to rotate synchronously, and the airflow cooperates with the rotation to clean the impurities at the welding point. Then the welding torch 17 moves down to weld, and the industrial camera 15 monitors parameters such as arc and molten pool in real time to ensure welding uniformity. The smoke generated by welding will interfere with the detection. At this time, the solenoid valve closes the second exhaust port, the opening and closing component opens the slot, the fan 23 switches to the suction mode, the smoke is sucked into the slot, and discharged through the exhaust box, guide box 58 and guide tube 59. After welding is completed, the limit component loosens the clamp, the moving component drives the sliding plate 20 to separate, and the finished product can be taken out.

[0060] In summary, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. A welding fixture for processing automotive parts, comprising a welding table (10), an industrial camera (15) and a welding torch (17) mounted above the welding table (10), characterized in that: The upper end face of the welding table (10) is slidably mounted with opposing sliding plates (20), and the upper end face of the sliding plates (20) is fixedly mounted with opposing sliding rods (21). A rotating disk (11) is rotatably mounted between the two sliding rods (21). A sleeve rod is fixedly mounted on the side wall of the two rotating disks (11) that are close to each other. A limiting component for clamping the pipe is provided on the side wall of the rotating disk (11) away from the sleeve rod. A sliding frame (29) is fixedly installed on the upper end face of the sliding plate (20), and a rotating component for driving the rotating disk (11) to rotate is provided on one side wall of the sliding frame (29); The upper end face of the welding table (10) is provided with a moving component for driving the sliding plate (20) to slide; The welding table (10) has a slot, a filter screen (18) is fixedly installed at the opening of the slot, a fan (23) is fixedly installed in the slot, a first air outlet is opened on one side wall of the slot, a second air outlet is opened on the other side wall of the slot, and an opening and closing component for opening and closing the slot is provided in the slot. A rotating tube (57) is rotatably mounted on the upper end face of the welding table (10). An exhaust box is fixedly mounted on the end of the rotating tube (57). Multiple exhaust holes are opened on one side wall of the exhaust box. An installation plate (61) is slidably mounted on the upper end face of the welding table (10). A reciprocating assembly for driving the rotating tube (57) to continuously rise and fall is provided on the upper end face of the installation plate (61). An adjustment assembly for driving the rotating tube (57) to rotate is also provided above the mounting plate (61); The upper surface of the welding table (10) is provided with a displacement component for driving the mounting plate (61) to move.

2. The welding fixture for processing automotive parts according to claim 1, characterized in that: The side wall of the rotating disk (11) is provided with multiple rotating grooves that penetrate the rotating disk (11). Multiple limiting plates (33) are fixedly installed on the side wall of the rotating disk (11) away from the sleeve rod. A limiting rod (32) is fixedly installed between two limiting plates (33). A sliding plate (31) is slidably sleeved between two limiting rods (32). Multiple sliding rods (48) with one end penetrating the rotating groove are fixedly installed on the side wall of the sliding plate (31) facing the rotating disk (11). An arc plate (22) is installed at the penetrating end of the sliding rod (48). The limiting assembly includes two rotating seats (46) fixedly installed on one side wall of the rotating disk (11), and a threaded rod (45) is rotatably installed between the two rotating seats (46). The threaded rod (45) is threaded through the two sliding plates (31).

3. The welding fixture for processing automotive parts according to claim 2, characterized in that: A rotating shaft (43) for threaded rod (45) to pass through is fixedly installed on the side wall away from the sleeve of the rotating disk (11), and a first gear (44) is fixedly sleeved at the end of the rotating shaft (43). The rotating assembly includes a first motor (30) fixedly mounted on one side wall of the sliding frame (29), and the output shaft of the first motor (30) is fixedly mounted with a second gear (49) that meshes with the first gear (44).

4. The welding fixture for processing automotive parts according to claim 1, characterized in that: A sliding groove (42) is provided on the lower end face of the sliding plate (20), and a corresponding fixed shaft is rotatably installed on the upper end face of the welding table (10). A fixed plate (12) is fixedly sleeved on the outer side wall of the fixed shaft. A fixed rod (41) is fixedly installed on the upper end face of the fixed plate (12) near the edge. A first synchronous wheel (39) is fixedly sleeved on the outer side wall of the fixed shaft. The moving assembly includes two round shafts rotatably mounted on the upper surface of the welding table (10). A second synchronous wheel (40) is fixedly sleeved on the outer side wall of the two round shafts. A synchronous belt (38) is sleeved between the first synchronous wheel (39) and the second synchronous wheel (40). A third gear (37) is fixedly sleeved on the outer side wall of the round shafts. A first electric push rod (36) is fixedly mounted on the upper surface of the welding table (10). A first rack (34) that meshes with the third gear (37) is fixedly mounted on the output shaft of the first electric push rod (36).

5. The welding fixture for processing automotive parts according to claim 1, characterized in that: A groove is provided on the side wall opposite the slot, with one end penetrating the welding table (10). A hinged plate (24) with both ends inserted into the corresponding groove is placed in the slot. A bent hinged rod (25) with one end inserted into the welding table (10) is fixedly installed on the lower end face of the hinged plate (24). The opening and closing assembly includes a second motor (28) fixedly installed on one side wall of the welding table (10). The output shaft of the second motor (28) is fixedly installed with a drive rod (26). One end of the drive rod (26) is threaded into the opening and closing rod (25).

6. The welding fixture for processing automotive parts according to claim 1, characterized in that: A bent mounting bracket (62) is fixedly installed on the upper end face of the mounting plate (61). A corresponding insert (64) is fixedly installed on the upper end face of the mounting plate (61). A fixed tube (51) is rotatably installed at the end of the rotating tube (57) away from the air outlet box. A fixed sleeve (75) is fixedly sleeved on the outer wall of the fixed tube (51). Multiple bent rods (65) are fixedly installed on the outer wall of the fixed sleeve (75). One end of the bent rod (65) is inserted into the corresponding insert (64). A horizontal plate (76) is fixedly installed between two bent rods (65). A vertical rod (63) with its upper end penetrating the mounting bracket (62) is fixedly installed on the upper end of the horizontal plate (76). A round block (72) is fixedly installed at the penetrating end of the vertical rod (63). A spring (71) for pushing the horizontal plate (76) down is sleeved on the outer wall of the vertical rod (63). A vertical plate (70) is fixedly installed on the lower end of the horizontal plate (76). A lifting plate (66) is fixedly installed between the two vertical plates (70). The reciprocating assembly includes a lifting frame (74) fixedly installed on the upper end face of the mounting plate (61), a third motor (77) fixedly installed on one side wall of the lifting frame (74), and a push rod (78) fixedly installed on the output shaft of the third motor (77).

7. The welding fixture for processing automotive parts according to claim 6, characterized in that: A positioning plate (67) is placed on the lower end face of the lifting plate (66). A positioning groove is opened on the lower end face of the positioning plate (67). One end of the positioning plate (67) is bent upward to form a positioning part. A positioning rod (69) that is opposite to and penetrates the corresponding vertical plate (70) is fixedly installed on the side wall of the positioning part facing the vertical plate (70). A second electric push rod (68) that is opposite to and connected to the positioning part is fixedly installed on the upper end face of the lifting plate (66).

8. A welding fixture for processing automotive parts according to claim 6, characterized in that: A locking block (79) is fixedly installed on the outer side wall of the rotating tube (57), and a connecting tube (92) is rotatably installed on the outer side wall of the fixed cylinder (75). A connecting ring (80) is fixedly installed at the end of the connecting tube (92). A slot for the locking block (79) to be inserted is opened on the inner side wall of the connecting ring (80). A connecting plate (81) is fixedly installed on the outer side wall of the connecting ring (80). A connecting groove penetrating the connecting plate (81) is opened on the outer side wall of the connecting plate (81). The adjustment assembly includes a base plate (93) located above the mounting plate (61). A base rod (89) is fixedly installed on the upper end face of the base plate (93) and is connected to the bending rod (65). A base frame (90) is provided on the upper end face of the base plate (93). A convex shaft is rotatably installed on one side wall of the base frame (90). A connecting plate (82) is fixedly sleeved on the outer side wall of the convex shaft. A connecting rod (83) with one end passing through the connecting groove is fixedly installed on one side wall of the connecting plate (82). A fourth gear (84) is fixedly sleeved on the outer side wall of the convex shaft. A third electric push rod (85) is fixedly installed on the side wall of the base frame (90). A second rack (86) that meshes with the fourth gear (84) is fixedly installed on the output shaft of the third electric push rod (85). A drive component for driving the base frame (90) to lift is provided at the upper end of the base plate (93).

9. A welding fixture for processing automotive parts according to claim 8, characterized in that: A vertical plate is fixedly installed on the upper end face of the base plate (93), and a vertical block (91) is fixedly installed on the side wall of the vertical plate facing the base frame (90) and inserted into the base frame (90). The driving component includes a lifting rod (87) rotatably mounted on the upper end face of the base plate (93), the lifting rod (87) being threaded through the base frame (90), and a fourth motor (88) for driving the lifting rod (87) to rotate is fixedly mounted on the lower end face of the base frame (90).

10. A welding fixture for processing automotive parts according to claim 1, characterized in that: The displacement assembly includes a support frame (13) fixedly installed on one side wall of the welding table (10). A fourth electric push rod (54) is fixedly installed on the upper end face of the support frame (13). A hinge block (52) is fixedly installed on the output shaft of the fourth electric push rod (54). A hinge rod (60) is hinged to both ends of the hinge block (52). The lower end of the hinge rod (60) is hinged to the upper end face of the mounting plate (61).

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