Auxiliary clamp for motor welding maintenance
By combining modular fixtures with integrated slider and slide rail designs and independent preheating sliders, the adaptability and temperature difference issues of traditional motor welding fixtures are solved, enabling efficient and reliable multi-variety, small-batch production and improved welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional motor welding fixtures cannot adapt to flexible production of multiple varieties and small batches, and there is a risk of deformation and cracking caused by welding temperature differences.
The modular, detachable clamping system integrates a slider and clamping rail design, combined with an independently movable preheating slider and transmission components, to achieve localized dynamic preheating and continuous rotary clamping.
It improves the adaptability and reliability of the fixture, reduces welding temperature differences, lowers the risk of deformation and cracking, and enhances production efficiency and equipment lifespan.
Smart Images
Figure CN121733141A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of motor welding technology, specifically to an auxiliary fixture for motor welding and repair. Background Technology
[0002] In the field of motor manufacturing, the end rings and guide bars of rotors (such as squirrel-cage rotors) are typically connected by welding. The quality of the welding directly affects the performance and reliability of the motor. Currently, specialized welding fixtures are commonly used in this process to hold and rotate the rotor.
[0003] Traditional fixtures are designed for fixed, dedicated machines. Changing the rotor model requires replacing the entire tooling, which is time-consuming and cannot meet the needs of flexible production with multiple varieties and small batches. Moreover, if the integral fixture is damaged in any part, repair or replacement is extremely inconvenient and affects the entire welding process. Traditional preheating is usually carried out before welding begins, with the goal of bringing the workpiece locally or entirely to a preset minimum preheating temperature. After reaching the temperature, the preheating equipment can be removed or turned off before welding. The preheating area is relatively fixed, and the whole preheating is static. During the welding process, the preheating temperature of the unwelded areas gradually decreases, resulting in different welding temperature differences at each welding position. This greatly increases the risk of deformation and cracks in the weld due to different temperature differences. Summary of the Invention
[0004] To address the aforementioned problems in the prior art, this invention provides an auxiliary fixture for motor welding and repair, which has the advantages of modular and detachable clamping.
[0005] To achieve the above objectives, the present invention provides the following technical solution: including a base, on which a side plate and a clamp slide rail are provided, at least one detachable clamp integrated slider is provided in the clamp slide rail, a preheating slider is movably provided on the side plate, and a clamping component, a limiting component and a transmission component are provided on the clamp integrated slider; The clamping assembly includes a clamping claw, a clamping rotating ring, and an electromagnet. The upper side of the clamping integrated slider has a notch, and the clamping claw fills this notch and is movably connected to the clamping integrated slider to form a clamping position. The clamping rotating ring is rotatably disposed within this clamping position. The clamping rotating ring is divided into two symmetrical parts, which are located in the clamping integrated slider and the clamping claw, respectively. Each of the clamping rings has a slot on its outer end face. The electromagnet corresponds to this slot. The electromagnet has a movable magnetic block inside. One end of the magnetic block is fixed with a locking spring, and the other end is engaged in the slot of the clamping ring.
[0006] Preferably, a plurality of rollers are rotatably mounted on the inner wall of the clamping position, each roller abutting against the end face of the clamping ring to reduce friction, and the entire clamping ring rotates within the merged clamping position. An anti-slip pad is fixedly mounted on the inner wall of the clamping ring.
[0007] Preferably, an electric cylinder is also fixedly installed inside the integrated slider of the clamp, and an electric cylinder rod is slidably connected inside the electric cylinder. One end of the electric cylinder rod is fixed on the clamping jaw to control the opening and closing of the clamping jaw.
[0008] Preferably, the limiting component includes a limiting block that slides on the bottom edge of the integrated clamp slider. The bottom of the limiting block is provided with at least two limiting teeth. A push block is fixed on the outer end face of the limiting block. A limiting spring is also fixedly installed between the inner wall of the limiting block and the inner wall of the integrated clamp slider.
[0009] Preferably, the transmission assembly includes a driven wheel set, a transmission wheel set, and a driving wheel set, all of which are rotatably mounted inside the integrated slider of the clamp. One side of the driven wheel set engages with the clamping swivel ring, and part of the driving wheel set is exposed.
[0010] Preferably, the driven wheel assembly and the clamping swivel are in frictional engagement or meshing, and the width of the portion of the driven wheel assembly that engages with the clamping swivel is greater than the width of the clamping swivel groove.
[0011] Preferably, a speed-regulating motor and a long gear are rotatably mounted inside the clamp slide rail. The speed-regulating motor and the long gear are fixed together, and the long gear meshes with the exposed portion of the drive gear assembly.
[0012] Preferably, the clamp slide rail is further provided with a through clamp slide channel, and the upper end face of the clamp slide rail is provided with a plurality of limiting racks. The clamp integrated slider slides in the clamp slide channel, and the limiting component cooperates with the limiting racks.
[0013] Preferably, a top cover is fixed to the top of the side plate, and a slide rod is fixedly installed between its side walls, with the preheating slider slidably mounted on the slide rod.
[0014] Preferably, the slide bar is square and matches the preheating slider. A heater is slidably disposed inside the preheating slider. A heating head is fixed on the end face of the heater. An adjusting rod is fixed on the outer periphery of the heater and extends to the outside. The adjusting rod slides inside the preheating slider.
[0015] Compared with the prior art, the present invention provides an auxiliary fixture for motor welding and repair, which has the following advantages: 1. This auxiliary fixture for motor welding and repair features a pluggable and sliding design integrating sliders and fixture rails. Users can freely determine the number of sliders and their specific installation positions based on the rotor length, diameter, and welding position. On the one hand, when changing product models, there is no need to disassemble or replace the entire tooling; simply rearrange or replace the sliders of the corresponding size. This reduces changeover time from several hours to just a few minutes, greatly adapting to the flexible production needs of multi-variety, small-batch production. On the other hand, the sliders become standard modules, allowing for quick and easy replacement when damaged, simplifying maintenance and improving the overall reliability and service life of the equipment.
[0016] 2. This auxiliary fixture for motor welding and repair, through the setting of an independently movable preheating slider, in conjunction with a rotating rotor, achieves local dynamic preheating of the welding area, so that the welding temperature of all welding points is basically the same and the temperature difference is minimal. This can minimize deformation and internal stress caused by uneven heating, and also reduce the temperature difference between the welding area and the base material, significantly reducing the risk of thermal stress, welding deformation and cold cracking.
[0017] 3. This auxiliary fixture for motor welding and repair provides continuous rotational power and electricity to the slider by integrating a long gear and wiring rail inside the slide rail, ensuring uninterrupted power and electricity transmission. By setting up a clamping ring, electromagnet block and electric cylinder, it solves the problem that the clamping mechanism in common rotary fixtures may interfere with the opening and closing mechanism and get stuck after stopping at any angle. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the base sidewall of the present invention; Figure 3 This is a schematic diagram of the integrated slider structure of the clamp of the present invention; Figure 4 This is a schematic diagram of the half-section structure of the integrated slider of the clamp of the present invention; Figure 5 This is a schematic diagram of the half-section structure of the integrated slider of the clamp of the present invention; Figure 6 This is a schematic diagram of the transmission component structure of the present invention; Figure 7 This is a schematic diagram of the clamping swivel structure of the present invention; Figure 8 This is a schematic diagram of the preheating slider structure of the present invention.
[0019] In the diagram: 10. Base; 11. Side plate; 12. Clamp slide rail; 121. Clamp slide; 122. Limiting rack; 13. Top cover; 14. Slide rod; 15. Speed-regulating motor; 16. Long gear; 20. Clamp integrated slider; 21. Clamping claw; 22. Electric cylinder; 221. Electric cylinder rod; 23. Limiting block; 231. Limiting tooth; 232. Push block; 233. Limiting spring; 24. Clamping swivel; 241. Anti-slip pad; 25. Electromagnet; 251. Magnetic block; 26. Driven wheel assembly; 27. Transmission wheel assembly; 28. Driven wheel assembly; 29. Roller; 30. Preheating slider; 31. Heater; 311. Heating head; 312. Adjusting rod. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] like Figures 1-8 As shown, the device includes a base 10, a side plate 11, and a clamping slide rail 12. At least one detachable clamping integrated slider 20 is housed within the clamping slide rail 12, and a wiring track for power supply is also provided within the clamping slide rail 12. A preheating slider 30 is movably mounted on the side plate 11. The clamping integrated slider 20 is equipped with a clamping assembly, a limiting assembly, and a transmission assembly. The bottom of the clamping integrated slider 20 is L-shaped, and a power-connecting slider is mounted on it, which is electrically connected to the wiring track inside the clamping slide rail 12, i.e., to the existing track socket. The integrated clamp slide rail 12 not only provides power to the internal components of the integrated clamp slide rail 20, but also supports the integrated clamp slide rail 20. The speed-regulating motor 15 and the long gear 16 are rotatably installed inside the clamp slide rail 12. The speed-regulating motor 15 and the long gear 16 are fixed together. The clamp slide rail 12 also has a through clamp slide 121. Several limiting racks 122 are provided on the upper end face of the clamp slide rail 12. The integrated clamp slide rail 20 slides in the clamp slide 121. The limiting components cooperate with the limiting racks 122 to limit the integrated clamp slide rail 20.
[0022] A top cover 13 is fixed to the top of the side plate 11. A smoke absorber can be integrated on the top cover 13 to absorb welding fumes and prevent smoke from obstructing the user's view. A slide rod 14 is fixedly installed between its side walls. The preheating slider 30 is slidably installed on the slide rod 14. The slide rod 14 is square and matches the preheating slider 30, so that the preheating slider 30 is always on the same plane as the rotating part inside the integrated slider 20 of the fixture, and the preheating slider 30 only slides and does not rotate. A heater 31 is slidably installed inside the preheating slider 30. A heating head 311 is fixed on the end face of the heater 31. The center line of the heater 31 is on the same plane as the center axis of the clamping position described below. An adjusting rod 312 is fixed to the outer periphery of the heater 31. The adjusting rod 312 slides inside the preheating slider 30. The heating head 311 is located behind the rotor after installation. The distance between the heating head 311 and the rotor is adjusted by the adjusting rod 312. The position of the preheating slider 30 is adjusted by moving it. The heating head 311 on the heater 31 can be heated by electromagnetic, resistance, or microwave methods, which can heat the area near the welding point of the rotor. By preheating the welding point in advance, the risk of deformation and cold cracking due to excessive temperature rise during welding can be effectively avoided. Therefore, preheating by the preheating slider 30 reduces the temperature difference between the welding area and the surrounding base material, that is, it reduces the temperature gradient between the high-temperature welding area and the cold metal. By increasing the initial temperature of the entire workpiece (or local area), the instantaneous thermal stress generated during welding and the residual stress remaining after welding are greatly reduced, avoiding large deformation of the rotor. The preheating temperature needs to be set and adjusted according to the rotor material. For aluminum rotors, it is usually 300-450℃ on the preheating slider; for copper, it is 450-600℃; and for steel, it varies from 150-400℃ depending on the carbon equivalent.
[0023] The clamping assembly includes a clamping claw 21, a clamping rotating ring 24, and an electromagnet 25. The integrated clamping slider 20 has a notch on its upper side, which the clamping claw 21 fills to form a clamping position. The clamping rotating ring 24 is rotatably positioned within this clamping position. The clamping rotating ring 24 is divided into two symmetrical parts, located respectively within the integrated clamping slider 20 and the clamping claw 21. Each clamping rotating ring 24 has a slot on its outer end face, corresponding to the electromagnet 25. The electromagnet 25 contains a movable magnetic locking block 2. 51. One end of the magnetic locking block 251 is fixed to the locking spring, and the other end is locked into the slot of the clamping ring 24. Through the cooperation of the magnetic locking block 251 and the slot, the position of the clamping ring 24 can be locked, preventing the clamping ring 24 from getting stuck between the integrated slider 20 and the clamping claw 21 after rotation, which would affect the normal opening of the clamping position. The clamping action of the rotor can be completed by the two clamping rings 24. At the same time, after the clamping is completed, it will not affect the rotation of the rotor. The entire integrated slider 20 can be used alone or in combination.
[0024] Several rollers 29 are rotatably mounted on the inner wall of the clamping position. Each roller 29 abuts against the end face of the clamping ring 24 to reduce friction. The entire clamping ring 24 rotates within the combined clamping position. An anti-slip pad 241 is fixedly installed on the inner wall of the clamping ring 24. A limiting groove (not shown) is provided inside the clamping position, which cooperates with the clamping ring 24 to ensure that the clamping ring 24 rotates only within the clamping position, thereby limiting the movement of the clamping ring 24.
[0025] An electric cylinder 22 is also fixedly installed inside the integrated slider 20 of the clamp. An electric cylinder rod 221 is slidably connected inside the electric cylinder 22. One end of the electric cylinder rod 221 is fixed to the clamping jaw 21 to control the opening and closing of the clamping jaw 21. The electric cylinder 22 is in the extended state under normal conditions and in the retracted state under energized conditions. That is, by setting a large capacitor in the circuit of the electric cylinder 22, the power stored in the capacitor after the power is turned off is just enough to make the electric cylinder rod 221 drive the clamping jaw 21 to gradually extend fully. Alternatively, a spring is integrated inside the electric cylinder 22. Under energized conditions, the electric cylinder rod 221 retracts to compress the spring. Under de-energized conditions, the electric cylinder rod 221 is gradually ejected by the spring.
[0026] The limiting component includes a limiting block 23, which slides on the bottom edge of the integrated clamp slider 20. The bottom of the limiting block 23 is provided with at least two limiting teeth 231. A push block 232 is fixed on the outer end face of the limiting block 23. A limiting spring 233 is also fixedly installed between the inner wall of the limiting block 23 and the inner wall of the integrated clamp slider 20. The limiting teeth 231 cooperate with the limiting rack 122 to limit the position of the integrated clamp slider 20. Pushing the push block 232 upward can adjust the position of the integrated clamp slider 20.
[0027] The transmission assembly includes a driven wheel set 26, a transmission wheel set 27, and a driving wheel set 28, all three of which are rotatably mounted inside the integrated clamp slider 20. One side of the driven wheel set 26 engages with the clamping ring 24, while a portion of the driving wheel set 28 is exposed. The long gear 16 meshes with the exposed portion of the driving wheel set 28, allowing the integrated clamp slider 20 to engage with the long gear 16 at any position on the clamp slide rail 12 without interrupting power transmission. A certain amount of friction exists within the entire transmission assembly or the speed-regulating motor 15, preventing the clamping ring 24 from rotating under normal or minimal external force. The operator rotates it using external force. When the clamping ring 24 is driven by the motor, it can rotate to prevent the rotor from rotating on its own during the welding process after the rotor is clamped, which would lead to welding failure. The driven wheel assembly 26 and the clamping ring 24 are in friction fit or meshing, and the width of the part of the driven wheel assembly 26 that mates with the clamping ring 24 is greater than the width of the groove of the clamping ring 24. It is preferably a friction fit, which can prevent the motor from burning out if the clamping ring 24 gets stuck. The width of part of the driven wheel assembly 26 is greater than that of the clamping ring 24, which can ensure that the clamping ring 24 is always in contact with the clamping ring 24 and there will be no disconnection.
[0028] Working principle: During use, the integrated clamp slider 20 can be inserted into the clamp slide rail 12. During insertion, the limiting block 23 needs to be pushed upward. After the integrated clamp slider 20 moves to the designated position, the limiting block 23 is released, so that the limiting block 23 is locked on the limiting rack 122, thus completing the limiting of the integrated clamp slider 20 and preventing it from sliding. The long gear 16 is a long gear. During the insertion of the integrated clamp slider 20, its driving wheel set 28 is always meshed with the long gear 16. When it is necessary to weld the middle part of the motor rotor, two integrated clamp sliders 20 can be inserted, located at the left and right ends of the rotor respectively, so that the middle part can be welded. When it is necessary to weld the two sides of the rotor, two integrated clamp sliders 20 can be inserted, located at the middle of the rotor and one side end respectively. When a long rotor needs to be welded, multiple integrated clamp sliders can be inserted. Inserting one or more integrated clamping sliders 20 provides multi-point support, preventing deformation of the rotor after welding and heating. Therefore, through the above process, it can be seen that by setting the integrated clamping sliders 20, users can customize the number and position of the integrated clamping sliders 20 according to the type, length, and welding position of the motor rotor. This allows the same clamping system to adapt to rotors of various specifications and welding positions, eliminating the need for frequent replacement of dedicated clamps. When changing welding positions, simply moving the integrated clamping sliders 20 directly on the equipment is sufficient, shortening product changeover time. Furthermore, the clamping positions on the integrated clamping sliders 20 vary in size, allowing for matching the corresponding integrated clamping slider 20 according to the rotor diameter. This modular setup not only improves adaptability but also achieves precise, efficient, reliable, and easily maintainable flexible clamping through standardization and modularization.
[0029] Then, after the integrated clamp slider 20 moves to the corresponding position, the motor rotor is placed in the clamping position. At this time, the clamp slide rail 12 is energized, and the electric cylinders 22 of all the integrated clamp sliders 20 inserted into the clamp slide rail 12 are energized. The electric cylinder rod 221 is activated to drive the clamping claws 21 to retract. The rotor is clamped by the clamping claws 21 and the integrated clamp sliders 20. At this time, the rotor and the integrated clamp sliders 20 must be of the same model, that is, the clamping claws 21 are fully retracted, so that the clamping rings 24 form a complete circle. At the same time as the clamp slide rail 12 is energized, the electromagnet 25 is also energized, and the magnetic card block 251 is disengaged from the slot of the clamping rings 24. At this time, neither of the clamping rings 24 is restricted. When it is necessary to rotate the rotor, the speed-regulating motor 15 can be started to drive the long gear 16 to rotate. Rotating wheel 6 drives the drive wheel assembly 28 to rotate, which in turn drives the driven wheel assembly 26 to rotate via the transmission wheel assembly 27. The rotation of the driven wheel assembly 26 drives the clamping ring 24 to rotate, thereby driving the rotor to rotate. At this time, the components on the rotor can be welded in a ring. By adjusting the speed of the speed-regulating motor 15, the rotation speed of the rotor can be controlled. There is no need for manual 180° rotation for welding. During the continuous rotation of the rotor, workers can perform continuous welding through laser welding or other methods. That is, the equipment can be connected to an automation system, and after adjusting the position of the welding gun, automatic welding can be performed without manual intervention. Alternatively, after manual welding, the speed-regulating motor 15 can be started to rotate the rotor 180° before welding. There is no need for the complicated process of disassembling, adjusting and reinstalling the rotor, which greatly increases the welding efficiency.
[0030] Before welding, manually adjust the preheating slider 30 to the welding point, pull out the heater 31, and bring the heating head 311 close to the welding point. Then, start the speed-regulating motor 15 to rotate the rotor, and the heater 31 will also start to heat the welding point of the rotor. After it reaches the preheating condition, the welding gun can be manually or controlled by the equipment to perform welding. At the same time, keep the rotor rotating. The speed of the rotor rotation can be adjusted appropriately to cooperate with the welding. This process can greatly reduce the temperature difference generated during welding. Alternatively, after installing the rotor and adjusting the position of the preheating slider 30, the equipment can be placed in a sealed chamber and automated welding can be performed with the cooperation of other equipment. Keep the heater 31 working continuously to avoid the risk of cracking due to excessive rotor temperature rise.
[0031] After welding, the power of heater 31 is gradually reduced to decrease the rotor welding temperature gradient. This prevents excessive temperature drop from causing the rotor metal structure to form hard and brittle phases (such as coarse martensite and bainite), significantly reducing the material's toughness (impact toughness decreases), making the rotor prone to brittle fracture during operation. After the rotor temperature drops to a safe level, the speed-regulating motor 15 is de-energized to stop the rotor's rotation. Then, the clamp slide rail 12 is de-energized. At this time, the electromagnet 25 is de-energized, and the magnetic clamp block 251 abuts against the clamping ring 24 under the elastic force of the clamping spring. At this time, the seam between the two clamping rings 24 and the seam between the clamping claw 21 and the clamp integrated slider 20 are aligned. Because the seams are not aligned, the magnetic locking block 251 cannot be locked in the slot of the clamping ring 24. After the speed-regulating motor 15 stops rotating, inertia will cause the clamping ring 24 to continue rotating until the slot of the clamping ring 24 is aligned with the magnetic locking block 251. At this time, under the push of the locking spring, the magnetic locking block 251 can be locked in the slot of the clamping ring 24, restricting the clamping ring 24 from continuing to rotate. Then, the gap of the clamping ring 24 is aligned with the gap between the clamping claw 21 and the clamping integrated slider 20, which will not affect the clamping slide rail 12. After the power is cut off, the electric cylinder 22 starts to push out the clamping claw 21, opening the clamping position. Then the position of the clamping integrated slider 20 can be adjusted or the rotor can be removed.
[0032] When the inertia of the rotating clamping ring 24 fails to align its slot with the magnetic block 251, the single clamping ring 24 is simultaneously located within the clamping jaw 21 and the integrated clamping slider 20. The misalignment of these gaps restricts the opening of the clamping jaw 21. Since the clamping ring 24 is arc-shaped, its friction is low due to the contact with the roller 29. The force of the electric cylinder 22 can pull the clamping ring 24 to rotate until the gap between the clamping rings 24 aligns with the magnetic block 251. When the gap between the gripper 21 and the integrated slider 20 is aligned, the magnetic block 251 will also enter the slot of the gripping ring 24 to restrict the gripping ring 24, so that the gripper 21 opens the gripping position. Even if jamming occurs, the rotor can be manually rotated to align the slot of the gripping ring 24 with the magnetic block 251. Therefore, the gap of the gripping ring 24 will not get stuck between the gripper 21 and the integrated slider 20 after the clamping slide rail 12 is de-energized.
[0033] In summary, this auxiliary fixture for motor welding and repair, through its pluggable and sliding design integrating the slider 20 and the fixture slide rail 12, allows users to freely determine the number of sliders (single-point, two-point, or multi-point support) and their specific installation positions based on the rotor length, diameter, and welding position. On one hand, when changing product models, there is no need to disassemble or replace the entire fixture; only the sliders of the corresponding size need to be rearranged or replaced, reducing changeover time from several hours to just a few minutes. This greatly adapts to the flexible production needs of multi-variety, small-batch production. On the other hand, the sliders become standard modules, allowing for quick and individual replacement after damage. The design is easy to replace and maintain, improving the overall reliability and service life of the equipment. The integrated long gear and wiring rail provide continuous rotational power and electricity to the slider, ensuring uninterrupted power transmission. The independently movable preheating slider slides along the welding path, enabling localized preheating of the welding area, reducing the temperature difference between the welding area and the base material, and significantly lowering the risk of thermal stress, welding deformation, and cold cracking. The use of a clamping ring, electromagnet block, and electric cylinder solves the common problem in rotary fixtures where the clamping mechanism may interfere with the opening and closing mechanism and become stuck after stopping at any angle.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An auxiliary fixture for welding and repairing motors, comprising a base (10), wherein a side plate (11) and a fixture slide rail (12) are provided on the base (10), wherein at least one detachable fixture integrated slider (20) is provided inside the fixture slide rail (12), and a preheating slider (30) is movably provided on the side plate (11), characterized in that: The integrated slider (20) of the clamp is provided with a clamping component, a limiting component and a transmission component; The clamping assembly includes a clamping claw (21), a clamping rotating ring (24), and an electromagnet (25). The clamping integrated slider (20) has a notch on its upper side. The clamping claw (21) fills the notch and is movably connected to the clamping integrated slider (20) to form a clamping position. The clamping rotating ring (24) is rotatably disposed in this clamping position. The clamping rotating ring (24) is divided into two symmetrical parts, which are located in the clamping integrated slider (20) and the clamping claw (21), respectively. Each of the clamping rings (24) has a slot on its outer end face. The electromagnet (25) corresponds to this slot. The electromagnet (25) has a movable magnetic block (251) inside. One end of the magnetic block (251) is fixed with a locking spring, and the other end is engaged in the slot of the clamping ring (24).
2. The auxiliary fixture for motor welding and repair according to claim 1, characterized in that: The inner wall of the clamping position is rotatably mounted with several rollers (29), each roller (29) abutting against the end face of the clamping ring (24) to reduce friction. The entire clamping ring (24) rotates within the merged clamping position. The inner wall of the clamping ring (24) is fixedly mounted with an anti-slip pad (241).
3. The auxiliary fixture for motor welding and repair according to claim 1, characterized in that: An electric cylinder (22) is also fixedly installed inside the integrated slider (20) of the clamp. An electric cylinder rod (221) is slidably connected inside the electric cylinder (22). One end of the electric cylinder rod (221) is fixed on the clamping claw (21) to control the opening and closing of the clamping claw (21).
4. The auxiliary fixture for motor welding and repair according to claim 1, characterized in that: The limiting component includes a limiting block (23), which slides on the bottom edge of the fixture integrated slider (20). The bottom of the limiting block (23) is provided with at least two limiting teeth (231). A push block (232) is fixed on the outer end face of the limiting block (23). A limiting spring (233) is also fixedly installed between the inner wall of the limiting block (23) and the inner wall of the fixture integrated slider (20).
5. An auxiliary fixture for motor welding and repair according to claim 1, characterized in that: The transmission assembly includes a driven wheel set (26), a transmission wheel set (27), and a driving wheel set (28), all of which are rotatably mounted inside the clamp integrated slider (20). One side of the driven wheel set (26) is engaged with the clamping swivel (24), and part of the driving wheel set (28) is exposed.
6. An auxiliary fixture for motor welding and repair according to claim 5, characterized in that: The driven wheel assembly (26) and the clamping ring (24) are in frictional engagement or meshing, and the width of the part of the driven wheel assembly (26) that engages with the clamping ring (24) is greater than the width of the groove of the clamping ring (24).
7. An auxiliary fixture for motor welding and repair according to claim 5, characterized in that: A speed-regulating motor (15) and a long gear (16) are rotatably installed inside the clamp slide rail (12). The speed-regulating motor (15) and the long gear (16) are fixed together, and the long gear (16) meshes with the exposed part of the drive wheel assembly (28).
8. An auxiliary fixture for motor welding and repair according to claim 1, characterized in that: The clamp slide rail (12) is also provided with a through clamp slide rail (121), and a number of limiting racks (122) are provided on the upper end face of the clamp slide rail (12). The clamp integrated slider (20) slides in the clamp slide rail (21), and the limiting component cooperates with the limiting racks (22).
9. An auxiliary fixture for motor welding and repair according to claim 1, characterized in that: The top of the side plate (11) is fixed with a cover (13), and a slide rod (14) is fixedly installed between its side walls. The preheating slider (30) is slidably installed on the slide rod (14).
10. An auxiliary fixture for motor welding and repair according to claim 9, characterized in that: The slide bar (14) is square and matches the preheating slider (30). A heater (31) is slidably disposed inside the preheating slider (30). A heating head (311) is fixed on the end face of the heater (31). An adjusting rod (312) is fixed on the outer periphery of the heater (31). The adjusting rod (312) extends to the outside and slides inside the preheating slider (30).