A welding device for motor brackets

Abstract

The application relates to the field of welding technology, in particular to a welding device for a motor support, and relates to the field of laser welding technology, which comprises a laser welding machine main body, a connecting frame and a welding gun, the bottom of the side surface of the laser welding machine main body is fixedly provided with the connecting frame, the front side surface of the connecting frame is provided with a horizontal frame, the top of the horizontal frame is fixedly provided with a middle rod, the top of the middle rod is provided with a power-assisted welding assembly for assisting workers to weld compensators along an annular track or a straight-line track, and the power-assisted welding assembly comprises a positioning ring, a guide ring and a horizontal rod. The power-assisted welding assembly is arranged on the side surface of the laser welding equipment, the core components of the power-assisted welding assembly are the guide ring and the horizontal rod, an annular track guide or a straight-line track guide structure for the laser welding gun is formed, the worker can stably move the laser welding gun along the annular track or the straight-line track by hand, the feeling of weight bearing and arm fatigue during operation of the worker is effectively reduced, and the labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and in particular to a welding device for motor brackets. Background Technology

[0002] A laser welding machine is a portable laser processing device that uses a high-energy-density laser beam as a heat source to achieve rapid welding of metal materials in a non-contact manner. Its core components include the welding equipment and a handheld welding gun. During operation, the laser is focused on the surface of the workpiece, and the material is locally melted and a high-quality weld is formed through precise temperature control. Compared with traditional welding technology, handheld laser welding has advantages such as a small heat-affected zone, less deformation, and a beautiful weld. It is also flexible to operate. When welding motor housings, workers need to weld the motor housings along a circular or straight trajectory.

[0003] In existing technologies, when welding motor housings using laser welding machines, workers mostly use handheld laser welding torches to weld along circular or straight paths. This relies heavily on manual control of the welding path, speed, and angle, resulting in high labor intensity. Workers holding the torch for extended periods are not only physically demanding but also prone to fatigue, affecting the stability and continuity of the operation, and consequently impacting welding efficiency. Furthermore, due to the significant influence of human factors, it is difficult to ensure that the welding torch remains on the ideal trajectory and posture throughout the welding process, leading to problems such as weld misalignment, uneven welding, insufficient penetration, or overheating. Consequently, the welding quality cannot be effectively guaranteed. Automated laser welding equipment, on the other hand, has a complex structure and high equipment cost, offering no advantages in the research, development, trial production, or small-batch customization of motor housings. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the existing technology of welding compensators using handheld laser welding machines. In most cases, workers hold a laser welding torch along a circular or linear trajectory, heavily relying on manual control of the welding path, speed, and angle. This process is labor-intensive, and prolonged torch operation is not only strenuous but also prone to fatigue, affecting the stability and continuity of the operation, thus impacting welding efficiency. Furthermore, due to significant human factors, it is difficult to ensure that the welding torch remains on the ideal trajectory and posture during the welding process, easily leading to problems such as weld misalignment, uneven welding, insufficient penetration, or overheating, resulting in unreliable welding quality. Therefore, this invention proposes a welding device for motor brackets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A welding device for a motor bracket includes a laser welding machine body, a connecting frame, and a welding torch. The connecting frame is fixedly installed on the bottom side of the laser welding machine body. A horizontal frame is installed on the front side of the connecting frame. A central rod is fixedly installed at the top center of the horizontal frame. An auxiliary welding component is installed at the top of the central rod to assist workers in welding compensators along a circular or straight track. The auxiliary welding component includes a positioning ring, a guide ring, and a horizontal rod. A transverse block is movably inserted into the horizontal rod. The welding torch is fixed at the bottom of the transverse block by a quick-fixing component. The horizontal frame is equipped with auxiliary welding components and auxiliary centering components for rapid concentricity of the compensator on both sides. The auxiliary centering components include a centering cone, a vertical rod, and a bidirectional screw. A U-shaped rod is fixedly installed on the outer wall of the positioning ring and the guide ring. A mounting base is movably inserted between the positioning ring and the guide ring. A central groove is provided on the front side of the mounting base. A traveling component that drives the horizontal rod to move in a circle along the positioning ring is provided inside the central groove. The traveling component includes a ring gear, a traveling gear, and a drive motor. A switching interlocking component is provided at the top of the central groove. The switching interlocking component ensures that the welding torch can only weld along a straight line or a circular trajectory at a certain time. The switching interlocking component includes a horizontal folding frame, a common horizontal bar, and a damping component. The damping component, controlled by the switching interlocking component, limits the horizontal movement block to any horizontal position.

[0006] Optionally, the two ends of the bidirectional screw are rotatably connected to the two ends of the horizontal frame. The outer wall of the bidirectional screw is symmetrically provided with external threads in opposite directions. A vertical rod is screwed into the symmetrical threads on the outer wall of the bidirectional screw. A centering cone is fixedly provided at the top of the vertical rod. The horizontal center line of the centering cone coincides with the center line of the positioning ring and the guide ring.

[0007] Optionally, the mounting base is provided with a top guide shoulder at the top and a bottom guide shoulder is fixedly provided on one side of the mounting base. The bottom of the top guide shoulder is attached to the outer wall of the positioning ring and the guide ring, and the top of the bottom guide shoulder is attached to the inner wall of the positioning ring.

[0008] Optionally, the quick-fix assembly includes a vertical frame, a limiting screw, and a locking handle. The top of the vertical frame is fixedly connected to the bottom of the horizontal moving block, and the limiting screw is fixedly provided on the side of the welding gun housing. The locking handle is screwed into the vertical frame after the limiting screw passes through it.

[0009] Optionally, the side of the transverse block is fixedly provided with a top horizontal shoulder and a bottom horizontal shoulder, and the side of the horizontal rod is provided with a top horizontal groove and a bottom horizontal groove in the vertical direction. The top horizontal shoulder and the bottom horizontal shoulder are sequentially inserted into the top horizontal groove and the bottom horizontal groove, respectively, and the height of the top horizontal shoulder is less than the height of the top horizontal groove.

[0010] Optionally, a support block is symmetrically fixedly provided at the bottom of the central groove, and a limiting worm gear is rotatably connected to the top of the two support blocks. A locking turbine is stably engaged at the bottom of the limiting worm gear. The center position of the side of the locking turbine is fixedly connected to one end of a horizontal column. A traveling gear is fixedly provided at the other end of the horizontal column after passing through the mounting base. Annular teeth are equidistantly provided on the inner wall of the guide ring, and the annular teeth mesh with the traveling gear.

[0011] Optionally, an inverted U-shaped rod is fixedly installed on the top of the horizontal folding frame. The top of the inverted U-shaped rod is rotatably connected to the bottom of the switching screw. The outer wall of the switching screw is threaded into the top of the mounting base. A drive motor is fixedly installed on the top of the horizontal folding frame. A drive gear is fixedly installed at the output end of the drive motor. A driven gear is stably meshed on the top of the drive gear. The driven gear is fixedly connected to one end of the limiting worm gear.

[0012] Optionally, a bottom crossbar is fixedly provided at the bottom of the horizontal folding frame, and vertical bars are symmetrically fixedly provided at the bottom of the bottom crossbar. The mounting base has an avoidance groove at the bottom of the avoidance groove, and the vertical bars are fixedly provided at the top of the common crossbar after passing through the avoidance groove.

[0013] Optionally, the damping assembly includes a vertical column, a lifting nut, and a damping block. The side of the transverse block has an installation groove, the vertical column is movably inserted into the installation groove, an installation ring is fixedly provided at the bottom of the vertical column, a damping block is fixedly provided on the outer wall of the top of the vertical column, a lifting groove is provided at the top of the common crossbar, and a damping groove is provided at the top of the horizontal bar.

[0014] Optionally, the damping block is located at the bottom of the damping groove, and the vertical column passes through the damping groove and the lifting groove in sequence and is threaded with a lifting nut, the diameter of which is larger than the width of the lifting groove.

[0015] Compared with the prior art, the present invention has the following advantages: 1. This invention provides a welding assistance component on the side of the laser welding equipment. The core components of the welding assistance component are a guide ring and a horizontal bar, which form a circular or linear trajectory guiding structure for the laser welding gun. The worker can hold the laser welding gun and move it stably along the circular or linear trajectory, effectively reducing the worker's burden and arm fatigue, and reducing labor intensity. Secondly, the guiding structure can stably limit the movement path of the welding gun, making the welding trajectory more precise and avoiding weld deviation and uneven penetration. Thirdly, even workers with insufficient operating experience can achieve high-quality welding with the help of this structure, improving weld consistency and appearance quality.

[0016] 2. This invention includes a walking component between the guide ring and the positioning ring. This walking component controls the handheld laser welding torch to move stably along a circular trajectory. A horizontal bar assists the welding torch in moving stably along the circular trajectory. A switching interlocking component is located between the walking component and the horizontal bar. This interlocking component ensures that the welding torch can only weld along a straight or circular trajectory at any given time. This prevents the welding torch from moving along a straight trajectory due to incorrect operation while moving along a circular trajectory, or vice versa. It effectively prevents the welding torch from deviating from its intended path due to misjudgment or hand slippage during actual operation, thus avoiding problems such as weld misalignment, breakage, and repeated fusion. This interlocking mechanism greatly improves the fault tolerance and safety of operation, making it especially suitable for inexperienced operators and reducing human error. Furthermore, this structure does not require complex electronic control; path switching control is achieved solely through mechanical interlocking, resulting in high reliability, low maintenance costs, and adaptability to various welding conditions.

[0017] 3. One of the core components of the switching interlock assembly of the present invention is a damping component. The damping component is used to control the horizontal position of the transverse block of the fixed welding torch. The switching interlock assembly controls the damping component with certain characteristics. When the entire auxiliary welding assembly drives the welding torch to perform circular trajectory welding, no matter what horizontal position the transverse block is in, the switching interlock assembly can immediately lock the transverse block with the welding torch at that horizontal position through the purely mechanical damping component. This reduces the threshold for operators to operate the switching interlock assembly. Workers do not need to move to the horizontal position of the transverse block to lock it, simplifying the operation process and improving welding efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A.

[0020] Figure 3 for Figure 1 Another perspective structural diagram.

[0021] Figure 4 This is a structural diagram of the horizontal bar and its connecting parts.

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B.

[0023] Figure 6 This is a schematic diagram of the structure of the circular track and its connecting parts.

[0024] Figure 7 This is a structural diagram of the mounting base and its connecting parts.

[0025] Figure 8 for Figure 7 Another perspective structural diagram.

[0026] Figure 9 This is a structural diagram of the welding torch and its connecting parts.

[0027] Figure 10 This is a structural diagram of the transverse block and its connecting parts.

[0028] Figure 11 This is a structural diagram of the horizontal folding frame and its connecting parts.

[0029] Figure 12 This is a structural diagram of the horizontal bar and the mounting base.

[0030] In the diagram: 1. Connecting frame; 2. Laser welding machine body; 3. Horizontal bar; 4. Common crossbar; 41. Lifting groove; 5. Centering cone; 6. Vertical bar; 7. Bidirectional screw; 8. Horizontal frame; 9. Intermediate bar; 10. Top horizontal groove; 11. Bottom horizontal groove; 12. Positioning ring; 13. Guide ring; 131. Ring tooth; 14. U-shaped bar; 15. Top guide shoulder; 16. Switching screw; 17. Mounting base; 171. Center groove; 172. Clearance groove; 173. Vertical groove; 18. Drive motor; 181. Drive gear; 19. 20. Bottom guide shoulder; 201. Limiting worm gear; 202. Driven gear; 21. Locking worm; 22. Support block; 23. Horizontal column; 24. Traveling gear; 25. Welding torch; 251. Limiting screw; 26. Vertical frame; 27. Locking grip; 28. Lifting nut; 29. ​​Damping block; 30. Lateral block; 300. Mounting groove; 301. Bottom horizontal shoulder; 302. Top horizontal shoulder; 31. Mounting ring; 32. Vertical column; 33. Inverted U-shaped rod; 34. Horizontal folding frame; 35. Bottom horizontal bar; 351. Vertical bar; 36. Damping groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Reference Figures 1-12A welding device for a motor bracket includes a laser welding machine body 2, a connecting frame 1, and a welding torch 25. The connecting frame 1 is fixedly installed on the bottom side of the laser welding machine body 2. The laser welding machine body 2 and the welding torch 25 are mature devices in the prior art, so they are not disclosed in this application. A horizontal frame 8 is provided on the front side of the connecting frame 1. A middle rod 9 is fixedly installed at the top middle position of the horizontal frame 8. An auxiliary welding component is provided on the top of the middle rod 9 to assist workers in welding compensators along a circular track or a straight track. The auxiliary welding component includes a positioning ring 12, a guide ring 13, and a horizontal rod 3. A transverse moving block 30 is inserted into the horizontal rod 3 in a horizontal direction. The bottom of the transverse moving block 30 is fixed to the welding torch 25 by a quick-fixing component.

[0034] The quick-fix assembly includes a vertical frame 26, a limiting screw 251, and a locking handle 27. The top of the vertical frame 26 is fixedly connected to the bottom of the horizontal moving block 30. The limiting screw 251 is fixedly installed on the side of the welding torch 25 housing. After the limiting screw 251 passes through the vertical frame 26, the locking handle 27 is screwed into it. The width of the locking handle 27 is greater than the width of the vertical frame 26. The welding torch 25 can be moved down along the vertical frame 26 by an appropriate distance to finally adjust the geometric center position of the end of the welding torch 25 with the guide ring 13 and the centering ring 12.

[0035] The horizontal frame 8 has auxiliary welding components and auxiliary centering components for quick concentricity of the compensator on both sides. The auxiliary centering components include a centering cone 5, a vertical rod 6, and a bidirectional screw 7. The two ends of the bidirectional screw 7 are rotatably connected to the two ends of the horizontal frame 8. The outer wall of the bidirectional screw 7 has symmetrical external threads in opposite directions. The vertical rod 6 is screwed into the symmetrical threads on the outer wall of the bidirectional screw 7. The centering cone 5 is fixedly installed at the top of the vertical rod 6. The horizontal center line of the centering cone 5 coincides with the center line of the positioning ring 12 and the guide ring 13. The end of the bidirectional screw 7 is generally fixed with a rocker wheel to facilitate the rotation of the bidirectional screw 7. The centering cone 5 is a truncated cone with one end wider than the other. The narrow ends of the two centering cones 5 are opposite each other. The two compensator pipes are respectively fitted onto the outer wall of the centering cone 5. After the bidirectional screw 7 is rotated to drive the two compensator pipes to come closer to each other and fit together, the two compensator pipes will automatically become concentric with the positioning ring 12 and the guide ring 13.

[0036] A U-shaped rod 14 is fixedly installed on the outer wall of the positioning ring 12 and the guide ring 13. A mounting base 17 is movably inserted between the positioning ring 12 and the guide ring 13. A gap is left between the positioning ring 12 and the guide ring 13 to provide sufficient space for the installation of the mounting base 17. A top guide shoulder 15 is provided on the top of the mounting base 17, and a bottom guide shoulder 19 is fixedly provided on one side of the mounting base 17. The bottom of the top guide shoulder 15 is attached to the outer wall of the positioning ring 12 and the guide ring 13, and the top of the bottom guide shoulder 19 is attached to the inner wall of the positioning ring 12. The top of the bottom guide shoulder 19 is an arc-shaped surface, and the bottom of the top guide shoulder 15 is also an arc-shaped surface. The bottom guide shoulder 19 and the top guide shoulder 15 assist the mounting base 17 in moving along the circular trajectory formed by the gap between the positioning ring 12 and the guide ring 13.

[0037] The front side of the mounting base 17 is provided with a central groove 171. Inside the central groove 171 is a traveling component that drives the horizontal bar 3 to move in a circular motion along the positioning ring 12. The traveling component includes a ring gear 131, a traveling gear 24, and a drive motor 18. The top of the central groove 171 is provided with a switching interlock component. The switching interlock component ensures that the welding torch 25 can only weld along a straight line or a circular trajectory at a certain time. The switching interlock component includes a horizontal folding frame 34, a common horizontal bar 4, and a damping component. The damping component, controlled by the switching interlock component, limits the horizontal movement block 30 to any horizontal position.

[0038] The transverse block 30 has a top transverse shoulder 302 and a bottom transverse shoulder 301 fixedly installed on its side. The horizontal bar 3 has a top transverse groove 10 and a bottom transverse groove 11 opened vertically on its side. The top transverse shoulder 302 and the bottom transverse shoulder 301 are inserted into the top transverse groove 10 and the bottom transverse groove 11 in sequence. The height of the top transverse shoulder 302 is less than the height of the top transverse groove 10. The bottom of the central groove 171 is symmetrically fixedly provided with support blocks 22. The tops of the two support blocks 22 are rotatably connected to a limiting worm gear 20. The bottom of the limiting worm gear 20 is stable. A locking turbine 21 is engaged, and the center of the side of the locking turbine 21 is fixedly connected to one end of the horizontal column 23. The other end of the horizontal column 23 passes through the mounting base 17 and is fixedly mounted with a traveling gear 24. The inner wall of the guide ring 13 is provided with ring teeth 131 at equal intervals. The ring teeth 131 mesh with the traveling gear 24. When the limiting worm 20 is not subjected to external force, the limiting worm 20 and the locking turbine 21 cooperate to use the traveling gear 24 and the ring teeth 131 to lock the entire mounting base 17 at any position of the guide ring 13.

[0039] A U-shaped rod 33 is fixedly installed on the top of the horizontal folding frame 34. The top of the U-shaped rod 33 is rotatably connected to the bottom of the switching screw 16. The outer wall of the switching screw 16 is screwed into the top of the mounting base 17. A rocker wheel is also provided on the top of the switching screw 16. A drive motor 18 is fixedly installed on the top of the horizontal folding frame 34. A drive gear 181 is fixedly installed at the output end of the drive motor 18. A driven gear 201 is stably meshed on the top of the drive gear 181. The driven gear 201 is fixedly connected to one end of the limiting worm gear 20.

[0040] A bottom horizontal bar 35 is fixedly installed at the bottom of the horizontal folding frame 34. Vertical bars 351 are symmetrically fixedly installed at the bottom of the bottom horizontal bar 35. The mounting base 17 has a clearance groove 172 at the bottom of the clearance groove 172. The vertical bars 351 pass through the clearance groove 172 and are fixedly installed at the top of the common horizontal bar 4. In order not to obstruct the common horizontal bar 4 from approaching or moving away from the mounting base 17, a vertical groove 173 is reserved on the side of the mounting base 17.

[0041] The damping assembly includes a vertical column 32, a lifting nut 28, and a damping block 29. The side of the transverse block 30 has an installation groove 300. The vertical column 32 is movably inserted into the installation groove 300. An installation ring 31 is fixedly installed at the bottom of the vertical column 32. A damping block 29 is fixedly installed on the outer wall of the top of the vertical column 32. A lifting groove 41 is opened at the top of the common crossbar 4. A damping groove 36 is opened at the top of the horizontal bar 3. The damping block 29 is located at the bottom of the damping groove 36. The top of the damping block 29 and the bottom of the damping groove 36 are both provided with a frosted surface. The vertical column 32 passes through the damping groove 36 and the lifting groove 41 in sequence and is then threaded with a lifting nut 28. The diameter of the lifting nut 28 is larger than the width of the lifting groove 41.

[0042] The specific implementation steps and principles of this invention are as follows: According to actual needs, the compensator pipes to be welded at both ends are manually passed through the positioning ring 12 and the guide ring 13. Finally, the bidirectional screw 7 is rotated to drive the two centering cones 5 to move closer to each other. Finally, the compensator pipes at both ends are concentrically held and connected. The auxiliary handle 27 is loosened and the vertical frame 26 is pulled down an appropriate distance. Finally, the auxiliary handle 27 is tightened and the end of the welding torch 25 is brought close to the center of the positioning ring 12 and the guide ring 13 at an appropriate position.

[0043] When the entire assisted welding assembly requires the welding torch 25 to weld along a circular trajectory, the switching screw 16 is manually rotated. The switching screw 16 drives the horizontal folding frame 34 to move upward along the central groove 171. At this time, the drive gear 181 meshes with the driven gear 24. The horizontal folding frame 34 drives the common horizontal bar 4 to move upward through the vertical rod 351. The common horizontal bar 4 drives the vertical column 32 to move upward through the lifting nut 28, causing the damping block 29 to fit against the bottom of the damping groove 36. At this time, the horizontal moving block 30 cannot move horizontally along the horizontal rod 3. The drive motor 18 is started. The drive motor 18 drives the horizontal column 23 to rotate through the drive gear 181, the driven gear 24, the locking worm 21, and the limiting worm 20. The traveling gear 24 at the end of the horizontal column 23 rotates along the ring tooth 131.

[0044] When the welding torch 25 needs to travel along a straight path in the entire assisted welding assembly, the switching screw 16 is manually rotated in the opposite direction. The switching screw 16 drives the horizontal folding frame 34 to move down, and the drive gear 181 separates from the driven gear 201. At this time, the damping, with the cooperation of the limiting worm gear 20 and the locking worm 21, limits the entire mounting base 17 to a suitable position on the outer wall of the guide ring 13. The lifting nut 28 drives the vertical column 32 to move down, and the damping block 29 no longer adheres to the bottom of the damping groove 36. At this time, the horizontal moving block 30 can move freely in the horizontal direction of the horizontal bar 3. The worker holds the welding torch 25 and walks along the straight path restricted by the horizontal bar 3 to weld.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for an electric motor bracket, comprising a laser welding machine body, a connecting frame, and a welding torch, characterized in that, A connecting frame is fixedly installed on the bottom side of the main body of the laser welding machine. A horizontal frame is installed on the front side of the connecting frame. A middle rod is fixedly installed at the top center of the horizontal frame. An auxiliary welding component is installed on the top of the middle rod to assist workers in welding compensators along a circular or straight track. The auxiliary welding component includes a positioning ring, a guide ring, and a horizontal rod. A transverse block is inserted into the horizontal rod in a horizontal direction. The bottom of the transverse block is fixed to the welding gun by a quick-fix component. The horizontal frame is equipped with auxiliary welding components and auxiliary centering components for rapid concentricity of the compensator on both sides. The auxiliary centering components include a centering cone, a vertical rod, and a bidirectional screw. A U-shaped rod is fixedly installed on the outer wall of the positioning ring and the guide ring. A mounting base is movably inserted between the positioning ring and the guide ring. A central groove is provided on the front side of the mounting base. A traveling component that drives the horizontal rod to move in a circle along the positioning ring is provided inside the central groove. The traveling component includes a ring gear, a traveling gear, and a drive motor. A switching interlocking component is provided at the top of the central groove. The switching interlocking component ensures that the welding torch can only weld along a straight line or a circular trajectory at a certain time. The switching interlocking component includes a horizontal folding frame, a common horizontal bar, and a damping component. The damping component, controlled by the switching interlocking component, limits the horizontal movement block to any horizontal position.

2. The welding device for a motor bracket according to claim 1, characterized in that, The two ends of the bidirectional screw are rotatably connected to the two ends of the horizontal frame. The outer wall of the bidirectional screw is symmetrically provided with external threads in opposite directions. A vertical rod is screwed into the symmetrical threads on the outer wall of the bidirectional screw. A centering cone is fixedly provided at the top of the vertical rod. The horizontal center line of the centering cone coincides with the center line of the positioning ring and the guide ring.

3. The welding device for a motor bracket according to claim 1, characterized in that, The mounting base is provided with a top guide shoulder at the top and a bottom guide shoulder is fixedly provided on one side of the mounting base. The bottom of the top guide shoulder is attached to the outer wall of the positioning ring and the guide ring, and the top of the bottom guide shoulder is attached to the inner wall of the positioning ring.

4. The welding device for a motor bracket according to claim 1, characterized in that, The quick-fix assembly includes a vertical frame, a limiting screw, and a locking handle. The top of the vertical frame is fixedly connected to the bottom of the horizontal moving block. The limiting screw is fixedly provided on the side of the welding gun housing. The locking handle is screwed into the vertical frame after the limiting screw passes through it.

5. The welding device for a motor bracket according to claim 1, characterized in that, The side of the transverse block is fixedly provided with a top horizontal shoulder and a bottom horizontal shoulder in sequence. The side of the horizontal bar is provided with a top horizontal groove and a bottom horizontal groove in sequence along the vertical direction. The top horizontal shoulder and the bottom horizontal shoulder are inserted into the top horizontal groove and the bottom horizontal groove in sequence. The height of the top horizontal shoulder is less than the height of the top horizontal groove.

6. The welding device for a motor bracket according to claim 1, characterized in that, The bottom of the central groove is symmetrically fixed with support blocks. The top of the two support blocks is rotatably connected to a limiting worm gear. The bottom of the limiting worm gear is stably engaged with a locking turbine. The center position of the side of the locking turbine is fixedly connected to one end of a horizontal column. The other end of the horizontal column passes through the mounting base and is fixedly equipped with a traveling gear. The inner wall of the guide ring is equidistantly provided with ring teeth, which mesh with the traveling gear.

7. The welding device for a motor bracket according to claim 6, characterized in that, A U-shaped rod is fixedly installed on the top of the horizontal folding frame. The top of the U-shaped rod is rotatably connected to the bottom of the switching screw. The outer wall of the switching screw is threaded into the top of the mounting base. A drive motor is fixedly installed on the top of the horizontal folding frame. A drive gear is fixedly installed at the output end of the drive motor. A driven gear is stably meshed on the top of the drive gear. The driven gear is fixedly connected to one end of the limiting worm gear.

8. The welding device for a motor bracket according to claim 6, characterized in that, A bottom crossbar is fixedly installed at the bottom of the horizontal folding frame, and vertical bars are symmetrically fixedly installed at the bottom of the bottom crossbar. The mounting base has an clearance groove at the bottom of the clearance groove, and the vertical bars pass through the clearance groove and are fixedly installed at the top of the common crossbar.

9. A welding device for a motor bracket according to claim 8, characterized in that, The damping assembly includes a vertical column, a lifting nut, and a damping block. The side of the transverse block has an installation groove, the vertical column is movably inserted into the installation groove, an installation ring is fixedly installed at the bottom of the vertical column, and a damping block is fixedly installed on the outer wall of the top of the vertical column. The top of the common crossbar has a lifting groove, and the top of the horizontal bar has a damping groove.

10. A welding device for a motor bracket according to claim 9, characterized in that, The damping block is located at the bottom of the damping groove. The vertical column passes through the damping groove and the lifting groove in sequence and is then threaded with a lifting nut. The diameter of the lifting nut is larger than the width of the lifting groove.

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