Fixed welding tool module and clamping welding system

Abstract

The utility model provides a kind of fixed welding tool module and clamping welding system, fixed welding tool module includes for fixed welding one clamping mechanism and fixed welding two clamping mechanism;Fixed welding one clamping mechanism includes fixed welding drive mechanism, and the drive end of fixed welding drive mechanism is set fixed welding clamping piece;Fixed welding two clamping mechanism includes the support bracket of setting support end face, and the positioning slot is set in the concave of support end face upper side;Support bracket both sides are set clamping drive mechanism, and both sides clamping drive mechanism drive connection lateral clamping block;Fixed welding clamping piece is located above positioning slot, and the angle included angle between the clamping movable direction of fixed welding clamping piece and the opening direction of positioning slot has angle included angle. By the direction relationship of angle included angle access setting, make fixed welding tool module can be adapted to a kind of pipeline workpiece and first end component carry out clamping and attach;And realized the pressure joint of the pipeline workpiece of welded first end component and second end component between two and positioning.

Description

Technical Field

[0001] This utility model relates to a positioning and clamping tooling module, specifically, to a fixed welding tooling module and a clamping welding system. Background Technology

[0002] In existing technologies, for welding applications of pipe workpieces with curvature, the clamping and positioning structure of the clamping application is fixed, and at least three sets of clamping and positioning structures need to be set in order to adapt to the curvature of the workpiece. The structure is costly and inconvenient to use.

[0003] For welding of pipe workpieces, based on the connection between the circumferential pipe diameter port and the external structure, at least two sets of welding points are required to ensure welding stability. In the application of fixed clamping and positioning structures, the welding gun assembly with a single operation requires manual welding of two sets of welding points, which is quite complicated.

[0004] For pipe workpieces that require fitting and welding connections between end components, existing technologies require multi-station operations. After welding the pipe workpiece to one end component, the workpiece is removed and moved to another station for welding to the other end component. This requires setting up two sets of welding equipment and two workstations, resulting in high equipment application costs. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fixed welding fixture module and a clamping welding system.

[0006] A fixed welding fixture module includes a fixed welding clamping mechanism for clamping and positioning a first end component and a fixed welding clamping mechanism for clamping and positioning a second end component. The fixed welding clamping mechanism includes a fixed welding drive mechanism, and a fixed welding snap-fit ​​is provided at the drive end of the fixed welding drive mechanism. The fixed welding snap-fit ​​is adapted to snap-fit ​​the first end component. The fixed welding clamping mechanism includes a support bracket with a support end face. A positioning groove is provided inwardly on the upper side of the support end face. Clamping drive mechanisms are provided on both sides of the support bracket. The clamping drive mechanisms on both sides drive and connect to lateral clamping blocks. The lateral clamping blocks on both sides are arranged facing each other and corresponding to the positioning groove. An arc-shaped clamping recess is provided on the facing side of the lateral clamping blocks on both sides. The fixed welding snap-fit ​​is located above the positioning groove, and there is an angle between the snap-fit ​​movement direction of the fixed welding snap-fit ​​and the opening direction of the positioning groove.

[0007] Furthermore, it includes a vertically extending fixed welding bracket, a movable rod movably connected to the fixed welding bracket, and a fixed welding snap-fit ​​connected to one end of the movable rod; the first end member is provided with a mounting hole for cooperating with an external structure, the fixed welding snap-fit ​​is provided with a snap-fit ​​plate for supporting contact with the bottom surface of the first end member, and the snap-fit ​​plate extends forward to provide a snap-fit ​​cone adapted to pass through the mounting hole.

[0008] Furthermore, a protective grille is provided between the positioning groove and the clamping drive mechanisms on both sides, and a grille interface is provided on the upper side of the protective grille corresponding to the positioning groove.

[0009] Furthermore, it also includes a clamping bracket, wherein the fixed welding clamping mechanism one and the fixed welding clamping mechanism two are integrated on the clamping bracket, and the clamping bracket is provided with handles on both sides.

[0010] Furthermore, the angle is set within the range of 60 degrees to 120 degrees.

[0011] Furthermore, the included angle is set to 80 degrees.

[0012] A clamping welding system includes: a frame, on which a welding module and a detachable pre-welding fixture module and a fixed welding fixture module are mounted; the pre-welding fixture module includes a pre-welding first clamping mechanism for clamping one end of a pipe workpiece and a pre-welding second clamping mechanism for clamping and positioning a first end component pre-welded to the other end of the pipe workpiece; the welding module is disposed to the side corresponding to the pre-welding second clamping mechanism or the fixed welding second clamping mechanism.

[0013] Furthermore, the pre-welding clamping mechanism includes a pre-welding clamping member for clamping one end of the pipe workpiece, and a pre-welding driving mechanism for driving the pre-welding clamping member to move closer to or away from the pipe workpiece; the pre-welding clamping mechanism includes a support groove adapted to be fitted with the first end member; the pre-welding clamping member is located above the support groove, and the clamping movement direction of the pre-welding clamping member has an angle with the opening orientation of the support groove.

[0014] Furthermore, the pre-welded clamping mechanism includes a support base, on the upper side of which a support groove is provided. When the first end component is installed in the support groove, the upper side of the first end component is flush with the upper end face of the support base. The support base has pressing clamping portions on both sides, each including a pressing clamping block and a pressing drive device. The pressing drive device drives the pressing clamping block toward the junction of the support groove and the upper end face of the support base to perform a pressing drive movement.

[0015] Furthermore, the welding module includes a first welding torch assembly, which includes a first welding torch section connected to a first welding drive mechanism. The first welding drive mechanism drives the first welding torch section to perform spot welding at the junction of the positioned pipe workpiece and the first end component. The first welding drive mechanism includes a vertically arranged welding bracket, which is rotatably connected to a welding drive cylinder. The drive end of the welding drive cylinder is connected to a welding torch clamping member for clamping and positioning the first welding torch section. A guide mechanism for driving guidance is connected between the welding drive cylinder and the welding torch clamping member. The welding module also includes a second welding torch assembly, with the welding ends of the first and second welding torch assemblies symmetrically arranged relative to the pre-welding clamping mechanism or the fixed-welding clamping mechanism.

[0016] The beneficial effects of this utility model are as follows:

[0017] By setting the access direction relationship with the included angle, the fixed welding fixture module of this utility model can be adapted to clamp and assemble a pipe workpiece with an angular curvature and a first end component welded to the pipe workpiece; and under the positioning and clamping of the first end component and the pushing application of the fixed welding drive mechanism, the pipe workpiece with the first end component welded and the second end component are positioned by pressing and fitting, which meets the requirements of clamping and welding pipe workpieces with two end components in the clamping and welding system for pre-welding application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the structural assembly application of the first process of the clamping and welding system of this utility model;

[0019] Figure 2 This is a schematic diagram of the structural configuration of the first welding torch assembly of this utility model;

[0020] Figure 3 This is a schematic diagram showing the structural setup of the pre-welding fixture module of this utility model;

[0021] Figure 4 This is a schematic diagram of the structural setup of the fixed welding fixture module of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] Frame 1, pre-welding fixture module 11, clamping bracket 111, gripping handle 112, fixed welding fixture module 12.

[0024] 2. Pre-welded clamping mechanism; 21. Pre-welded snap-fit ​​component; 22. Pre-welded drive mechanism; 23. Positioning bracket; 231. Limiting plate; 232. Limiting groove; 233. Movable rod; 234. Limiting ring; 235. Limiting rod; 236. Elastic component.

[0025] Pre-welded clamping mechanism 3, support base 30, support groove 31, pressing clamping part 32, pressing clamping block 321, pressing drive device 322, linkage bracket 323, linkage component 234.

[0026] Fixed welding clamping mechanism 4, fixed welding snap-fit ​​component 41, snap-fit ​​plate 411, snap-fit ​​cone 412, fixed welding drive mechanism 42, bracket body 421, push rod 422.

[0027] 5. Fixed welding clamping mechanism; 51. Support bracket; 52. Positioning groove; 53. Clamping drive mechanism; 54. Lateral clamping block; 541. Clamping recess; 55. Protective grille.

[0028] Welding module 6, first welding torch assembly 61, first welding torch section 611, first welding drive mechanism 612, welding bracket 613, arc-shaped hole 6131, welding drive cylinder 614, welding torch clamp 615, guide mechanism 616, second welding torch assembly 62.

[0029] Pipe workpiece 7, first end component 71, mounting hole 711, second end component 72. Detailed Implementation

[0030] To make the technical solution, purpose and advantages of this utility model clearer, the following explanation is given in conjunction with the accompanying drawings and embodiments.

[0031] like Figures 1 to 4 As shown, the present invention provides a clamping and welding system for clamping and positioning a pipe workpiece 7 and a first end member 71 and a second end member 72 that are used for welding at both ends of the pipe workpiece 7, and then performing a welding operation to achieve the joining of the pipe workpiece 7 with the two end members.

[0032] The clamping welding system includes a frame 1, on which a welding module 6 and a detachable pre-welding fixture module 11 and a fixed welding fixture module 12 are mounted. The pre-welding fixture module 11 includes a pre-welding clamping mechanism 2 for clamping one end of a pipe workpiece 7 and a pre-welding clamping mechanism 3 for clamping and positioning a first end member 71 pre-welded to the other end of the pipe workpiece 7. The fixed welding fixture module 12 includes a fixed welding clamping mechanism 4 for clamping and positioning the first end member 71 and a fixed welding clamping mechanism 5 for clamping and positioning a second end member 72 pre-welded to one end of the pipe workpiece 7. The welding module 6 includes a first welding gun assembly 61 and a second welding gun assembly 62 disposed beside the pre-welding clamping mechanism 3 or the fixed welding clamping mechanism 5.

[0033] In actual welding applications, the pre-welding fixture module 11 is first installed on the frame 1 as the first step. Under the clamping of the pre-welding clamping mechanism 2 and the pre-welding clamping mechanism 3, the pipe workpiece 7 and the first end component 71 are clamped and positioned for pre-welding. Then, the first welding gun assembly 61 and the second welding gun assembly 62 are driven to perform two-point welding at the connection position between the pipe workpiece 7 and the first end component 71, thus completing the welding connection between the pipe workpiece 7 and the first end component 71.

[0034] Subsequently, the welded pipe workpiece 7 and the first end component 71 are disassembled from the pre-welding fixture module 11, and the pre-welding fixture module 11 is removed from the frame 1. The fixed welding fixture module 12 replaces the pre-welding fixture module 11 and is mounted on the frame 1, which is the second process. The welded pipe workpiece 7 and the first end component 71 are positioned and mounted to the fixed welding clamping mechanism 4, and the second end component 72 is clamped by the fixed welding clamping mechanism 5, so that the unwelded end of the welded pipe workpiece 7 aligns with the position of the second end component 72. The fixed welding clamping mechanism 4 and the fixed welding clamping mechanism 5 perform pre-welding positioning of the pipe workpiece 7 and the second end component 72. Then, the first welding gun assembly 61 and the second welding gun assembly 62 are driven to perform two-point welding at the connection position between the pipe workpiece 7 and the second end component 72, thus completing the welded connection between the pipe workpiece 7 and the second end component 72.

[0035] The pre-welding fixture module 11 and the fixed welding fixture module 12 are used alternately (the first process and the second process alternate) to clamp and weld the pipe workpiece 7, the first end component 71 and the second end component 72, so as to realize the assembly line production of a pipe workpiece 7 with end components at both ends.

[0036] For a welding application of a pipe workpiece 7 with curvature, the pre-welding fixture module 11 (a combination structure of pre-welding clamping mechanism 2 and pre-welding clamping mechanism 3) is configured with the following cooperation relationship:

[0037] The pre-welding clamping mechanism 2 includes a pre-welding clamping member 21 for clamping one end of the pipe workpiece 7 and a pre-welding driving mechanism 22 for driving the pre-welding clamping member 21 to move closer to or away from the pipe workpiece 7; the pre-welding clamping mechanism 3 includes a support groove 31 adapted to be installed with the first end member 71; the pre-welding clamping member 21 is located above the support groove 31, and there is an angle between the clamping and insertion direction of the pre-welding clamping member 21 and the opening direction of the support groove 31.

[0038] With the angle of contact set, a pipe workpiece 7 with an angular curvature is adapted. Driven by the pre-welding drive mechanism 22, the pre-welding snap-fit ​​part 21 is pressed against one end of the pipe workpiece 7, while the other end of the pipe workpiece 7 is connected and positioned with the first end component 71, realizing the overall assembly and positioning of the pipe workpiece 7 and the first end component 71 on the pre-welding fixture module 11. The angle of contact is set within the range of 60 degrees to 120 degrees based on the curvature range of the pipe workpiece 7. In this embodiment, the applied angle is set to 80 degrees.

[0039] In a preferred embodiment, the pre-welding drive mechanism 22 is configured as follows: the pre-welding drive mechanism 22 includes a vertically arranged positioning bracket 23, a limiting plate 231 on the positioning bracket 23, and a limiting groove 232 on the limiting plate 231; a movable rod 233 is threaded through the positioning bracket 23, one end of the movable rod 233 is connected to the pre-welding snap-fit ​​component 21, and the other end of the movable rod 233 is rotatably connected to a limiting ring 234 in a positioning configuration; a limiting rod 235 extends outward from the outer periphery of the limiting ring 234, and an elastic member 236 connects the limiting ring 234 and the positioning bracket 23. The angle between the extending direction of the movable rod 233 and the opening orientation of the supporting groove 31 is 80 degrees.

[0040] The user can hold the limiting rod 235 and push the movable rod 233 forward (towards the pipe workpiece 7) in conjunction with the pre-welded clamping piece 21. Then, when the movable rod 233 is pushed forward to the limiting groove 232, the limiting rod 235 is rotated and locked into the limiting groove 232, thus completing the ejection and effective positioning of the pre-welded clamping piece 21. At this point, the elastic member 236 possesses elastic potential energy. When it is necessary to disassemble the welded pipe workpiece 7, the limiting rod 235 is rotated out of the limiting groove 232. Under the action of elastic potential energy, the movable rod 233, in conjunction with the pre-welded clamping piece 21, retracts, releasing the clamping restriction on the pipe workpiece 7.

[0041] For a first end member 71 structure with a plate-shaped strip and a through hole at the end of the pipe workpiece 7, the pre-welded clamping mechanism 3 is configured as follows: it includes a support base 30, and a support groove 31 is provided on the upper side of the support base 30. When the first end member 71 is installed in the support groove 31, the upper side of the first end member 71 is flush with the upper end face of the support base 30. The support base 30 is provided with pressing clamping parts 32 on both sides. The pressing clamping parts 32 include pressing clamping blocks 321 and pressing driving devices 322. The pressing driving devices 322 are adapted to drive the pressing clamping blocks 321 to perform pressing driving movement toward the position where the support groove 31 and the upper end face of the support base 30 intersect.

[0042] The downward driving device 322 includes a downward linear driving cylinder fixedly mounted on the support base, with the driving end of the downward linear driving cylinder facing vertically upward; a linkage bracket 323 is provided between the driving end of the downward linear driving cylinder and the support groove 31; the downward clamping block 321 extends elongatedly, including a downward end and a driving end, with one end of the linkage member 234 connected to the upper side of the linkage bracket 323 by a rotating shaft, and the other end of the linkage member 234 connected to the middle position of the downward clamping block 321 by a rotating shaft, the driving end of the downward linear driving cylinder being connected to the driving end of the downward clamping block 321, and the downward end of the downward clamping block 321 facing the support groove 31.

[0043] The first end member 71 is inserted into the support groove 31, and its through-hole is used to connect to the cylindrical end of the pipe workpiece 7 to achieve basic connection and positioning. With the pre-welded snap-fit ​​part 21 positioned and supported by the pipe workpiece 7, the connection position between the pipe workpiece 7 and the first end member 71 is also relatively positioned. Then, the downward clamping part 32 is driven, causing the downward clamping block 321 to press down and clamp the first end member 71 on both sides, thus completing the overall clamping and positioning application of the pipe workpiece 7 and the first end member 71. Preparation for welding is then complete.

[0044] The first welding torch assembly 61 and the second welding torch assembly 62 can adopt the same structural configuration. Taking the structure of the first welding torch assembly 61 as an example, its application includes a first welding torch part 611, which is connected to a first welding drive mechanism 612. The first welding drive mechanism 612 drives the first welding torch part 611 to perform fixed-point welding at the junction position of the positioned and connected pipe workpiece 7 and the first end member 71. The first welding drive mechanism 612 includes a vertically arranged welding bracket 613, which is rotatably connected to a welding drive cylinder 614. The drive end of the welding drive cylinder 614 is connected to a welding torch clamping member 615 for clamping and positioning the first welding torch part 611. A guide mechanism 616 for driving guidance is connected between the welding drive cylinder 614 and the welding torch clamping member 615.

[0045] The welding bracket 613 is connected to the welding drive cylinder 614 by a rotating shaft, and the welding bracket 613 has an arc-shaped hole 6131 around the rotating shaft. The welding drive cylinder 614 extends a limiting connector into the arc-shaped hole 6131 to form a rotation limit. The guiding mechanism 616 includes a guide rail disposed on the welding drive cylinder 614, and the welding torch holder 615 is provided with a guide slider to be slidably connected to the guide rail. The welding torch holder 615 clamps the first welding torch part 611 by means of adjustable clamping blocks on both sides, so that the welding end of the first welding torch part 611 faces the welding position of the pipe workpiece 7 and the corresponding end component. Under the drive of the welding drive cylinder 614, spot welding is achieved.

[0046] To facilitate the disassembly and relocation of the pre-welding fixture module 11 and the fixed welding fixture module 12, the corresponding fixture module structure also includes a clamping bracket 111. Taking the fixed welding fixture module 12 as an example, the fixed welding first clamping mechanism 4 and the fixed welding second clamping mechanism 5 are integrated on the clamping bracket 111, and the clamping bracket 111 is provided with grip handles 112 on both sides for gripping and relocating the fixture module.

[0047] As a preferred structural implementation, the fixed welding fixture module 12 is configured as follows:

[0048] On the clamping bracket 111, a fixed welding clamping mechanism 4 and a fixed welding clamping mechanism 5 are provided. The fixed welding clamping mechanism 4 and the fixed welding clamping mechanism 5 are arranged in the same position as the pre-welding clamping mechanism 2 and the pre-welding clamping mechanism 3 to adapt to the welding positioning of the workpiece. Preferably, the fixed welding clamping mechanism 4 adopts a structural arrangement similar to that of the pre-welding clamping mechanism 2, and a corresponding fixed welding drive mechanism 42 is provided. The fixed welding drive mechanism 42 includes a vertically arranged support body 421 and a push rod 422 passing through it. By manually pushing and pulling the push rod 422, the corresponding clamping structure is activated to clamp the workpiece. The fixed welding clamping mechanism 4 is connected to one end of the push rod 222 by a fixed welding snap-fit ​​part 41. The first end member 71 is provided with a mounting hole 711 for cooperating with an external structure. The fixed welding snap-fit ​​part 41 is provided with a snap-fit ​​plate 411 for supporting contact with the bottom surface of the first end member 71. The fixed welding snap-fit ​​part 41 extends forward with a snap-fit ​​cone 412 to fit through the mounting hole 711, thereby realizing the fitting snap-fit ​​of the first end member 71.

[0049] The fixed welding clamping mechanism 5 includes a centrally located support bracket 51. The support bracket 51 has a support end face on its upper side, and a cylindrical positioning groove 52 is recessed on the upper side of the support end face. The second end member 72 is configured as a sleeve-shaped structure adapted to fit the outer side of the end of the pipe workpiece 7. During clamping, the pipe workpiece 7 is sleeved onto the sleeve-shaped second end member 72, and the second end member 72 is inserted into the positioning groove 52. Clamping drive mechanisms 53 are located on both sides of the support bracket 51. Each clamping drive mechanism 53 includes a clamping drive cylinder. The two clamping drive mechanisms 53 are connected to lateral clamping blocks 54. The two lateral clamping blocks 54 are positioned facing each other, corresponding to the upper position of the positioning groove 52. Arc-shaped clamping recesses 541 are provided on the facing side of the two lateral clamping blocks 54. Under driving clamping, the two lateral clamping blocks 54 use the clamping recesses 541 to position and clamp the periphery of the second end member 72.

[0050] To prevent operators from being pinched by the clamping block 54, in a preferred embodiment, a protective grille 55 is provided between the positioning groove 52 and the clamping drive mechanisms 53 on both sides, and a grille interface 551 is provided on the upper side of the protective grille 55 corresponding to the positioning groove 52.

[0051] The above description is only a preferred embodiment of the present utility model. For those skilled in the art, modifications can still be made to the embodiments without departing from the implementation principle of the present utility model, and the corresponding modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fixed welding fixture module, characterized in that, The device includes a fixed welding clamping mechanism for clamping and positioning a first end component and a fixed welding clamping mechanism for clamping and positioning a second end component. The fixed welding clamping mechanism includes a fixed welding drive mechanism, and a fixed welding snap-fit ​​is provided at the drive end of the fixed welding drive mechanism. The fixed welding snap-fit ​​is adapted to snap-fit ​​the first end component. The fixed welding clamping mechanism includes a support bracket with a support end face. A positioning groove is provided inwardly on the upper side of the support end face. Clamping drive mechanisms are provided on both sides of the support bracket. The clamping drive mechanisms on both sides drive and connect to lateral clamping blocks. The lateral clamping blocks on both sides are arranged facing each other and corresponding to the positioning groove. An arc-shaped clamping recess is provided on the facing side of the lateral clamping blocks on both sides. The fixed welding snap-fit ​​is located above the positioning groove, and there is an angle between the snap-fit ​​movement direction of the fixed welding snap-fit ​​and the opening direction of the positioning groove.

2. The fixed welding fixture module as described in claim 1, characterized in that, The device includes a vertically extending fixed welding bracket, a movable rod movably connected to the fixed welding bracket, and a fixed welding snap-fit ​​connected to one end of the movable rod; the first end member is provided with a mounting hole for cooperating with an external structure, the fixed welding snap-fit ​​is provided with a snap-fit ​​plate for supporting contact with the bottom surface of the first end member, and the snap-fit ​​plate extends forward to provide a snap-fit ​​cone adapted to pass through the mounting hole.

3. The fixed welding fixture module as described in claim 1, characterized in that, A protective grille is provided between the positioning groove and the clamping drive mechanisms on both sides, and a grille interface is provided on the upper side of the protective grille corresponding to the positioning groove.

4. The fixed welding fixture module as described in claim 1, characterized in that, It also includes a clamping bracket, on which the fixed welding clamping mechanism one and the fixed welding clamping mechanism two are integrated, and grip handles are provided on both sides of the clamping bracket.

5. The fixed welding fixture module as described in any one of claims 1 to 4, characterized in that, The angle setting ranges from 60 degrees to 120 degrees.

6. The fixed welding fixture module as described in claim 5, characterized in that, The included angle is set to 80 degrees.

7. A clamping welding system, characterized in that, include: A frame, on which a welding module and a detachable pre-welding fixture module and a fixed welding fixture module as described in any one of claims 1 to 6 are provided; The pre-welding fixture module includes a pre-welding clamping mechanism for clamping one end of the pipe workpiece and a pre-welding clamping mechanism for clamping and positioning a first end component pre-welded to the other end of the pipe workpiece. The welding module is set to the side of the pre-welding clamping mechanism or the fixed welding clamping mechanism.

8. The clamping welding system as described in claim 7, characterized in that, The pre-welding clamping mechanism includes a pre-welding clamping member for clamping one end of the pipe workpiece and a pre-welding driving mechanism for driving the pre-welding clamping member to move closer to or away from the pipe workpiece; the pre-welding clamping mechanism includes a support groove adapted to be fitted with the first end component; the pre-welding clamping member is located above the support groove, and the clamping movement direction of the pre-welding clamping member has an angle with the opening orientation of the support groove.

9. The clamping welding system as described in claim 8, characterized in that, The pre-welded clamping mechanism includes a support base with a support groove on its upper side. When the first end component is installed in the support groove, the upper side of the first end component is flush with the upper end face of the support base. The support base has pressing clamping parts on both sides, each pressing clamping part including a pressing clamping block and a pressing drive device. The pressing drive device drives the pressing clamping block toward the junction of the support groove and the upper end face of the support base to perform a pressing drive movement.

10. The clamping welding system as described in claim 9, characterized in that, The welding module includes a first welding torch assembly, which includes a first welding torch section connected to a first welding drive mechanism. The first welding drive mechanism drives the first welding torch section to perform spot welding at the junction of the positioned pipe workpiece and the first end component. The first welding drive mechanism includes a vertically arranged welding bracket, which is rotatably connected to a welding drive cylinder. The drive end of the welding drive cylinder is connected to a welding torch clamping component for clamping and positioning the first welding torch section. A guide mechanism for driving guidance is connected between the welding drive cylinder and the welding torch clamping component. The welding module also includes a second welding torch assembly, with the welding ends of the first and second welding torch assemblies symmetrically arranged relative to the pre-welding clamping mechanism or the fixed-welding clamping mechanism.

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