Automobile part welding equipment and method

The welding equipment, composed of a clamping adjustment unit, an internal telescopic unit, and an external folding unit, solves the problem of insufficient adjustment freedom in existing welding equipment, realizes efficient welding of complex structures, and improves welding quality and efficiency.

CN121551923APending Publication Date: 2026-02-24CHONGQING YIHENG AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511874008.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

The adjustment freedom of existing automotive parts welding equipment is limited to three-dimensional translation and single-axis rotation, making it difficult to accurately align with welding stations of complex structures, resulting in poor welding quality stability and low pass rate.

Method used

The welding equipment, composed of a clamping adjustment unit, an internal telescopic unit, and an external folding unit, combined with a miniature welding gun and an external welding gun, enables multi-angle and multi-degree-of-freedom welding adjustment, including internal telescopic and external folding, to adapt to complex structures.

Benefits of technology

It improves the adaptability and efficiency of welding, reduces welding quality defects, and significantly improves welding quality and pass rate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121551923A_ABST
    Figure CN121551923A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of automobile part welding, in particular to automobile part welding equipment and method. The automobile part welding equipment comprises a clamping adjusting unit and a welding assembly; the welding assembly comprises a mounting cylinder, an internal telescopic unit, a micro welding gun, three external folding units and three external welding guns, and the micro welding gun is moved into the automobile part for welding of inner wall gaps; an external folding unit is started, and an external welding gun moves around the automobile part; an external welding gun is started to comprehensively weld the exterior of the automobile part; therefore, gaps in the inner walls of the automobile parts are welded through the micro welding gun with the interior capable of being telescopically adjusted, the external welding gun with the exterior capable of being folded and adjusted is matched, the adaptation degree of welding and the automobile parts is remarkably improved, welding of the automobile parts of a complex structure can be completed, and frequent adjustment of the automobile parts is not needed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of automotive parts welding technology, and in particular to an automotive parts welding equipment and method. Background Technology

[0002] Currently, in the production and processing of automotive parts, different parts need to be spliced ​​together and welded to form complete automotive parts. Since there are many parts required for automobiles, and many of them have complex structures, it is necessary to adjust the spliced ​​parts at multiple angles, such as lifting, moving laterally, and rotating, during the welding process.

[0003] In the aforementioned prior art, the degree of freedom of adjustment is usually limited to basic three-dimensional translation and single-axis rotation, which is not flexible enough and has a limited range of posture adaptation. When facing hidden gaps in the internal butt joints of automotive parts or tricky welding angles of irregular structures, the existing adjustment methods are difficult to make the welding gun accurately align with the welding station, which makes the welded joint prone to quality defects such as incomplete penetration, slag inclusion, and porosity, resulting in poor welding quality stability and low pass rate of automotive parts. Summary of the Invention

[0004] The purpose of this invention is to provide a welding equipment and method for automotive parts, which solves the problem that the adjustment freedom in the prior art is usually limited to basic three-dimensional translation and single-axis rotation, resulting in insufficient adjustment flexibility and limited posture adaptation range. When facing hidden gaps in the internal butt joints of automotive parts or tricky welding angles of irregular structures, the existing adjustment method is difficult to make the welding torch accurately align with the welding station, which leads to quality defects such as incomplete penetration, slag inclusion, and porosity in the welded joint, resulting in poor welding quality stability and low pass rate of automotive parts.

[0005] To achieve the above objectives, the present invention provides an automotive parts welding device, including a clamping and adjusting unit and a welding assembly; The welding assembly includes a mounting cylinder, an internal telescopic unit, a miniature welding gun, three external folding units, and three external welding guns. The mounting cylinder is disposed on one side of the clamping and adjusting unit. The internal telescopic unit is disposed inside the mounting cylinder. The miniature welding gun is disposed on the internal telescopic unit. The three external folding units are sequentially disposed outside the mounting cylinder. The three external welding guns are respectively disposed on the corresponding external folding units.

[0006] The internal telescopic unit includes an internal telescopic rod, two electric actuators, a ring drive mechanism, two ring sliders, two internal telescopic components, and an internal folding mechanism. The two internal telescopic components are symmetrically arranged on the inner wall of the mounting cylinder. The output ends of the two internal telescopic components are provided with the ring drive mechanism. The two ring sliders are disposed on the ring drive mechanism. The internal telescopic rod is placed between the two ring sliders. One end of each of the two electric actuators is rotatably connected to the corresponding ring slider. The output ends of both electric actuators are rotatably connected to the internal telescopic rod.

[0007] The annular drive mechanism includes an annular groove, two annular drive motors, and two annular drive wheels. The annular groove is located at the output ends of the two internal telescopic components. Both annular sliders are slidably connected to the annular groove. The two annular drive motors are respectively located on the corresponding annular sliders. The output ends of the annular drive motors are fixedly connected to the annular drive wheels. The annular drive wheels are in contact with the inner wall of the annular groove.

[0008] The internal folding mechanism includes an internal folding plate, an internal folding drive component, an internal rotating plate, and an internal rotation drive component. The internal folding plate is rotatably connected to the internal telescopic rod through the internal folding drive component, and the internal rotating plate is rotatably connected to the internal folding plate through the internal rotation drive component.

[0009] The external folding unit includes an external support base, an external rotating plate, an external rotating drive component, an external folding drive component, an arc-shaped slide rail, and an arc-shaped drive mechanism. The external support base is fixedly connected to the outside of the mounting cylinder. The external rotating drive component is disposed inside the external support base. The output end of the external rotating drive component is fixedly connected to the external rotating plate. The arc-shaped slide rail is rotatably connected to the top of the external rotating plate through the external folding drive component. The arc-shaped drive mechanism is disposed inside the arc-shaped slide rail.

[0010] The arc-shaped drive mechanism includes an arc-shaped slider, two arc-shaped drive components, and two arc-shaped drive wheels. The arc-shaped slider is slidably connected to the arc-shaped slide rail. The two arc-shaped drive components are disposed at one end of the arc-shaped slider, and the output ends of the two arc-shaped drive components are fixedly connected to the arc-shaped drive wheels. The arc-shaped slide rail has an arc-shaped groove, and the arc-shaped groove is adapted to the arc-shaped drive wheels.

[0011] The arc-shaped drive mechanism further includes two external welding telescopic components and an external telescopic plate. The two external welding telescopic components are disposed inside the arc-shaped slider, and the output ends of the two external welding telescopic components are fixedly connected to the external telescopic plate. The external welding gun is disposed on the external telescopic plate.

[0012] The welding assembly further includes three folding mounting brackets and three unfolding support mechanisms. The three unfolding support mechanisms are sequentially arranged on the outside of the mounting cylinder, and the three folding mounting brackets are sequentially arranged at one end of the mounting cylinder. The unfolding support mechanism includes a support drive component and a support block. The support drive component is disposed outside the mounting cylinder. The output end of the support drive component is fixedly connected to the support block. The support block and the arc-shaped slide rail abut against each other.

[0013] The clamping adjustment unit includes a placement frame, two clamping components, two clamping plates, two flipping components, and two flipping plates. The placement frame is located on one side of the mounting cylinder. The two clamping components are symmetrically arranged on both sides of the placement frame. The output ends of the two clamping components are respectively fixedly connected to the corresponding clamping plates. The two flipping components are respectively located on the corresponding clamping plates, and the output ends of the two flipping components are respectively fixedly connected to the corresponding flipping plates.

[0014] The present invention also provides a welding method for automotive parts, using the aforementioned automotive parts welding equipment, comprising the following steps: The clamping adjustment unit clamps the automotive parts; By fixing the mounting cylinder, the welding equipment is installed on one side of the automotive part; The internal telescopic unit is activated to move the miniature welding gun inside the automotive part to weld the inner wall gaps; The external folding unit is activated, moving the external welding gun around the automotive component; The external welding gun is activated to perform comprehensive welding on the exterior of the automotive parts.

[0015] This invention discloses a welding device and method for automotive parts. The clamping and adjusting unit clamps the automotive parts; the welding device is installed on one side of the automotive parts by fixing the mounting cylinder; the internal telescopic unit is activated to move the miniature welding gun inside the automotive parts for welding the inner wall gaps; the external folding unit is activated to move the external welding gun around the automotive parts; the external welding gun is activated to perform full-scale welding on the exterior of the automotive parts. Thus, by using the internally telescopically adjustable miniature welding gun to weld the gaps on the inner wall of the automotive parts, combined with the externally foldable and adjustable external welding gun, the adaptability of welding to automotive parts is significantly improved. This enables the welding of automotive parts with complex structures without requiring frequent adjustments to the automotive parts, significantly improving welding efficiency and yield. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a structural schematic diagram of the automotive parts welding equipment of the present invention.

[0018] Figure 2 This is a cross-sectional view of the automotive parts welding equipment of the present invention.

[0019] Figure 3 This is the invention Figure 2 A sectional view along line AA.

[0020] Figure 4 This is the invention Figure 2 BB line section view.

[0021] Figure 5 This is the invention Figure 2 Enlarged view of the local structure at point C.

[0022] Figure 6 This is a schematic diagram of the mounting cylinder of the present invention.

[0023] Figure 7 This is a diagram of the internal structure of the mounting cylinder of the present invention.

[0024] Figure 8 This is a flowchart of the steps of the welding method for automotive parts of the present invention.

[0025] 1- Mounting cylinder, 2- Miniature welding gun, 3- External welding gun, 4- Internal telescopic rod, 5- Electric push rod, 6- Annular slider, 7- Internal telescopic component, 8- Annular groove, 9- Annular drive motor, 10- Annular drive wheel, 11- Internal folding plate, 12- Internal folding drive component, 13- Internal rotating plate, 14- Internal rotating drive component, 15- External support base, 16- External rotating plate, 17- External rotating drive component, 18- External folding drive component, 19- Arc-shaped slide rail, 20- Arc-shaped slider, 21- Arc-shaped drive component, 22- Arc-shaped drive wheel, 23- Arc-shaped slide groove, 24- External welding telescopic component, 25- External telescopic plate, 26- Folding mounting frame, 27- Support drive component, 28- Support block, 29- Mounting frame, 30- Clamping component, 31- Clamping plate, 32- Flipping component, 33- Flipping plate. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] Please see Figures 1 to 7 The present invention provides a welding equipment for automotive parts, including a clamping and adjusting unit and a welding assembly; The welding assembly includes a mounting cylinder 1, an internal telescopic unit, a miniature welding gun 2, three external folding units, and three external welding guns 3. The mounting cylinder 1 is disposed on one side of the clamping and adjusting unit. The internal telescopic unit is disposed inside the mounting cylinder 1. The miniature welding gun 2 is disposed on the internal telescopic unit. The three external folding units are sequentially disposed outside the mounting cylinder 1. The three external welding guns 3 are respectively disposed on the corresponding external folding units.

[0028] In this embodiment, the clamping and adjusting unit clamps the automotive parts; by fixing the mounting cylinder 1, the welding equipment is installed on one side of the automotive parts; the internal telescopic unit is activated, moving the miniature welding gun 2 inside the automotive parts to weld the inner wall gaps; the external folding unit is activated, moving the external welding gun 3 around the automotive parts; the external welding gun 3 is activated, performing full-scale welding on the exterior of the automotive parts; thus, by using the internally telescopically adjustable miniature welding gun 2 to weld the gaps on the inner wall of the automotive parts, combined with the externally foldable and adjustable external welding gun 3, the adaptability of welding to automotive parts is significantly improved, enabling the welding of automotive parts with complex structures without the need for frequent adjustments to the automotive parts, significantly improving welding efficiency and yield.

[0029] Furthermore, the internal telescopic unit includes an internal telescopic rod 4, two electric actuators 5, a ring drive mechanism, two ring sliders 6, two internal telescopic components 7, and an internal folding mechanism. The two internal telescopic components 7 are symmetrically arranged on the inner wall of the mounting cylinder 1. The output ends of the two internal telescopic components 7 are provided with the ring drive mechanism. The two ring sliders 6 are disposed on the ring drive mechanism. The internal telescopic rod 4 is placed between the two ring sliders 6. One end of each of the two electric actuators 5 is rotatably connected to the corresponding ring slider 6. The output ends of both electric actuators 5 are rotatably connected to the internal telescopic rod 4.

[0030] In this embodiment, the internal telescopic component 7 is an electric slide rail. After activation, it drives the internal telescopic rod 4 to extend, thereby driving the miniature welding gun 2 to extend into the interior of the automotive parts. At the same time, the internal folding mechanism can drive the miniature welding gun 2 to fold and adjust, further improving the adjustability of internal gap welding. After folding and adjusting, the miniature welding gun 2 can also be activated by the annular drive mechanism to drive the annular slider 6, causing the internal telescopic rod 4 and the miniature welding gun 2 to rotate and adjust their angles, thereby achieving the effect of switching the folding direction.

[0031] Furthermore, the annular drive mechanism includes an annular groove 8, two annular drive motors 9, and two annular drive wheels 10. The annular groove 8 is disposed at the output ends of the two internal telescopic components 7. The two annular sliders 6 are slidably connected to the annular groove 8. The two annular drive motors 9 are respectively disposed on the corresponding annular sliders 6. The output ends of the annular drive motors 9 are fixedly connected to the annular drive wheels 10. The annular drive wheels 10 are in contact with the inner wall of the annular groove 8.

[0032] In this embodiment, after the annular drive motor 9 is started, it drives the annular drive wheel 10 to rotate. The annular drive wheel 10 contacts the inner wall of the annular groove 8, thereby driving the annular slider 6 to move inside the annular groove 8, so that the internal telescopic rod 4 and the miniature welding gun 2 can be rotated and adjusted.

[0033] Furthermore, the internal folding mechanism includes an internal folding plate 11, an internal folding drive component 12, an internal rotating plate 13, and an internal rotating drive component 14. The internal folding plate 11 is rotatably connected to the internal telescopic rod 4 through the internal folding drive component 12, and the internal rotating plate 13 is rotatably connected to the internal folding plate 11 through the internal rotating drive component 14.

[0034] In this embodiment, both the internal folding drive component 12 and the internal rotation drive component 14 are self-locking motors. First, the internal folding drive component 12 is started, which can drive the internal folding plate 11 to fold and initially adjust the angle of the micro welding gun 2. Then, the internal rotation drive component 14 is started, which drives the internal rotating plate 13 to rotate, thereby further adjusting the angle of the micro welding gun 2.

[0035] Furthermore, the external folding unit includes an external support base 15, an external rotating plate 16, an external rotating drive component 17, an external folding drive component 18, an arc-shaped slide rail 19, and an arc-shaped drive mechanism. The external support base 15 is fixedly connected to the outside of the mounting cylinder 1. The external rotating drive component 17 is disposed inside the external support base 15. The output end of the external rotating drive component 17 is fixedly connected to the external rotating plate 16. The arc-shaped slide rail 19 is rotatably connected to the top of the external rotating plate 16 through the external folding drive component 18. The arc-shaped drive mechanism is disposed inside the arc-shaped slide rail 19.

[0036] In this embodiment, the external support base 15 supports the external rotation drive component 17. Both the external rotation drive component 17 and the external folding drive component 18 are self-locking motors. First, the external rotation drive component 17 is started, driving the external rotating plate 16 to rotate, which can adjust the angle of the arc-shaped slide rail 19, thereby adjusting the position of the miniature welding gun 2. The external folding drive component 18 can also be started, driving the arc-shaped slide rail 19 to fold and unfold, further adjusting the position of the miniature welding gun 2. Finally, through the arc-shaped drive mechanism, the external welding gun 3 can be driven to move along the arc-shaped slide rail 19. With the aforementioned rotation and folding adjustments, the welding range can be significantly improved, enhancing the adaptability to irregularly shaped automotive parts.

[0037] Furthermore, the arc-shaped drive mechanism includes an arc-shaped slider 20, two arc-shaped drive components 21, and two arc-shaped drive wheels 22. The arc-shaped slider 20 is slidably connected to the arc-shaped slide rail 19. The two arc-shaped drive components 21 are disposed at one end of the arc-shaped slider 20, and the output ends of the two arc-shaped drive components 21 are fixedly connected to the arc-shaped drive wheels 22. The arc-shaped slide rail 19 has an arc-shaped groove 23, and the arc-shaped groove 23 is adapted to the arc-shaped drive wheels 22.

[0038] In this embodiment, the arc-shaped drive component 21 is a self-locking motor. After starting, it drives the arc-shaped drive wheel 22 to rotate. The arc-shaped drive wheel 22 contacts the inner wall of the arc-shaped slide groove 23, thereby driving the arc-shaped slider 20 to move, so that the external welding gun 3 can slide to adjust its position.

[0039] Furthermore, the arc-shaped drive mechanism also includes two external welding telescopic components 24 and an external telescopic plate 25. The two external welding telescopic components 24 are disposed inside the arc-shaped slider 20, and the output ends of the two external welding telescopic components 24 are fixedly connected to the external telescopic plate 25. The external welding gun 3 is disposed on the external telescopic plate 25.

[0040] In this embodiment, the external welding telescopic component 24 is a self-locking cylinder. After activation, it can drive the external telescopic plate 25 to extend and retract, thereby driving the external welding gun 3 to adjust the distance between itself and the automotive parts.

[0041] Furthermore, the welding assembly also includes three folding mounting brackets 26 and three unfolding support mechanisms. The three unfolding support mechanisms are sequentially arranged on the outside of the mounting cylinder 1, and the three folding mounting brackets are sequentially arranged at one end of the mounting cylinder 1. The unfolding support mechanism includes a support drive component 27 and a support block 28. The support drive component 27 is disposed outside the mounting cylinder 1. The output end of the support drive component 27 is fixedly connected to the support block 28. The support block 28 abuts against the arc-shaped slide rail 19.

[0042] In this embodiment, the unfolding support mechanism supports the unfolded arc-shaped slide rail 19 to improve stability, and the folding mounting bracket 26 can support the folded arc-shaped slide rail 19 when it is not in use; the support driving component 27 is a self-locking cylinder, which drives the support block 28 to move upward and contact the arc-shaped slide rail 19 after activation, thus providing support.

[0043] Furthermore, the clamping adjustment unit includes a placement frame 29, two clamping components 30, two clamping plates 31, two flipping components 32, and two flipping plates 33. The placement frame 29 is disposed on one side of the mounting cylinder 1, and the two clamping components 30 are symmetrically disposed on both sides of the placement frame 29. The output ends of the two clamping components 30 are respectively fixedly connected to the corresponding clamping plates 31. The two flipping components 32 are respectively disposed on the corresponding clamping plates 31, and the output ends of the two flipping components 32 are respectively fixedly connected to the corresponding flipping plates 33.

[0044] In this embodiment, the clamping component 30 is a self-locking cylinder, and the flipping component 32 is a self-locking motor. First, the mounting frame 29 is fixed to a wall or support. Then, the clamping component 30 drives the clamping plate 31 to move, thereby clamping the automotive parts. At this time, the flipping component 32 is activated, driving the flipping plate 33 to rotate. The flipping plate 33 causes the automotive parts to be flipped and adjusted to different positions for welding. In addition, the mounting frame 29 is also provided with a lifting slide rail. By activating the lifting slide rail, the mounting frame 29 can be raised and lowered to further adjust the position of the automotive parts. With the external welding gun 3 and the miniature welding gun 2, welding dead angles can be significantly reduced, and no manual intervention is required.

[0045] When using the automotive parts welding equipment of this embodiment, the clamping adjustment unit clamps the automotive parts; by fixing the mounting cylinder 1, the welding equipment is installed on one side of the automotive parts; the internal telescopic unit is activated, moving the miniature welding gun 2 to the inside of the automotive parts to weld the inner wall gaps; the external folding unit is activated, moving the external welding gun 3 around the automotive parts; the external welding gun 3 is activated, performing full-area welding on the outside of the automotive parts; With the above-described structure, the micro welding gun 2, which is internally telescopically adjustable, is used to weld the gaps on the inner wall of automotive parts. Combined with the externally foldable and adjustable welding gun 3, the compatibility between welding and automotive parts is significantly improved. It can complete the welding of automotive parts with complex structures without the need for frequent adjustments to the automotive parts, thus significantly improving welding efficiency and pass rate.

[0046] Please see Figure 8 The present invention also provides a welding method for automotive parts, comprising the following steps: S1: The clamping adjustment unit clamps the automotive parts; S2: By fixing the mounting cylinder 1, the welding equipment is installed on one side of the automotive parts; S3: The internal telescopic unit is activated, moving the miniature welding gun 2 to the interior of the automotive parts to weld the inner wall gaps; S4: The external folding unit is activated, moving the external welding gun 3 around the automotive parts; S5: The external welding gun 3 is activated to perform comprehensive welding on the exterior of the automotive parts.

[0047] The clamping and adjusting unit clamps the automotive parts; the welding equipment is installed on one side of the automotive parts by fixing the mounting cylinder 1; the internal telescopic unit is activated to move the miniature welding gun 2 inside the automotive parts to weld the inner wall gaps; the external folding unit is activated to move the external welding gun 3 around the automotive parts; the external welding gun 3 is activated to perform full-body welding on the exterior of the automotive parts.

[0048] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A welding equipment for automotive parts, comprising a clamping and adjusting unit, characterized in that, It also includes welding components; The welding assembly includes a mounting cylinder, an internal telescopic unit, a miniature welding gun, three external folding units, and three external welding guns. The mounting cylinder is disposed on one side of the clamping and adjusting unit. The internal telescopic unit is disposed inside the mounting cylinder. The miniature welding gun is disposed on the internal telescopic unit. The three external folding units are sequentially disposed outside the mounting cylinder. The three external welding guns are respectively disposed on the corresponding external folding units.

2. The automotive parts welding equipment as described in claim 1, characterized in that, The internal telescopic unit includes an internal telescopic rod, two electric actuators, a ring drive mechanism, two ring sliders, two internal telescopic components, and an internal folding mechanism. The two internal telescopic components are symmetrically arranged on the inner wall of the mounting cylinder. The output ends of the two internal telescopic components are provided with the ring drive mechanism. The two ring sliders are disposed on the ring drive mechanism. The internal telescopic rod is placed between the two ring sliders. One end of each of the two electric actuators is rotatably connected to the corresponding ring slider. The output ends of both electric actuators are rotatably connected to the internal telescopic rod.

3. The automotive parts welding equipment as described in claim 2, characterized in that, The annular drive mechanism includes an annular groove, two annular drive motors, and two annular drive wheels. The annular groove is located at the output ends of the two internal telescopic components. Both annular sliders are slidably connected to the annular groove. The two annular drive motors are respectively located on the corresponding annular sliders. The output ends of the annular drive motors are fixedly connected to the annular drive wheels. The annular drive wheels are in contact with the inner wall of the annular groove.

4. The automotive parts welding equipment as described in claim 3, characterized in that, The internal folding mechanism includes an internal folding plate, an internal folding drive component, an internal rotating plate, and an internal rotating drive component. The internal folding plate is rotatably connected to the internal telescopic rod through the internal folding drive component, and the internal rotating plate is rotatably connected to the internal folding plate through the internal rotating drive component.

5. The automotive parts welding equipment as described in claim 4, characterized in that, The external folding unit includes an external support base, an external rotating plate, an external rotating drive component, an external folding drive component, an arc-shaped slide rail, and an arc-shaped drive mechanism. The external support base is fixedly connected to the outside of the mounting cylinder. The external rotating drive component is disposed inside the external support base. The output end of the external rotating drive component is fixedly connected to the external rotating plate. The arc-shaped slide rail is rotatably connected to the top of the external rotating plate through the external folding drive component. The arc-shaped drive mechanism is disposed inside the arc-shaped slide rail.

6. The automotive parts welding equipment as described in claim 5, characterized in that, The arc-shaped drive mechanism includes an arc-shaped slider, two arc-shaped drive components, and two arc-shaped drive wheels. The arc-shaped slider is slidably connected to the arc-shaped slide rail. The two arc-shaped drive components are disposed at one end of the arc-shaped slider, and the output ends of the two arc-shaped drive components are fixedly connected to the arc-shaped drive wheels. The arc-shaped slide rail has an arc-shaped groove, and the arc-shaped groove is adapted to the arc-shaped drive wheels.

7. The automotive parts welding equipment as described in claim 6, characterized in that, The arc-shaped drive mechanism also includes two external welding telescopic components and an external telescopic plate. The two external welding telescopic components are disposed inside the arc-shaped slider, and the output ends of the two external welding telescopic components are fixedly connected to the external telescopic plate. The external welding gun is disposed on the external telescopic plate.

8. The automotive parts welding equipment as described in claim 7, characterized in that, The welding assembly also includes three folding mounting brackets and three unfolding support mechanisms. The three unfolding support mechanisms are sequentially arranged on the outside of the mounting cylinder, and the three folding mounting brackets are sequentially arranged at one end of the mounting cylinder. The unfolding support mechanism includes a support drive component and a support block. The support drive component is disposed outside the mounting cylinder. The output end of the support drive component is fixedly connected to the support block. The support block and the arc-shaped slide rail abut against each other.

9. The automotive parts welding equipment as described in claim 8, characterized in that, The clamping adjustment unit includes a placement frame, two clamping components, two clamping plates, two flipping components, and two flipping plates. The placement frame is disposed on one side of the mounting cylinder, and the two clamping components are symmetrically disposed on both sides of the placement frame. The output ends of the two clamping components are respectively fixedly connected to the corresponding clamping plates. The two flipping components are respectively disposed on the corresponding clamping plates, and the output ends of the two flipping components are respectively fixedly connected to the corresponding flipping plates.

10. A method for welding automotive parts, using the automotive parts welding equipment as described in claim 9, characterized in that, Includes the following steps: The clamping adjustment unit clamps the automotive parts; By fixing the mounting cylinder, the welding equipment is installed on one side of the automotive part; The internal telescopic unit is activated to move the miniature welding gun inside the automotive part for welding the inner wall gaps; The external folding unit is activated, moving the external welding gun around the automotive component; The external welding gun is activated to perform comprehensive welding on the exterior of the automotive parts.