Stator base welding device

By designing limit, clamping and lifting components, the problem of low accuracy of the butt of the cover and shell in the stator base welding device is solved, and efficient stator base welding is achieved.

CN223185841UActive Publication Date: 2025-08-05SUZHOU YASHENG PLASTIC CO LTD
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Patent Information

Application Number
CN202422358326.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-08-05
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The existing stator stand welding devices lack calibration components, resulting in low accuracy when the stator stand housing is connected to the cover, affecting product processing quality.

Method used

A stator base welding device including limiting components, clamping components, lifting components and welding components is designed. The stator base housing is fixed through limiting components, the clamping components clamp the cover, and the stator base housing height is adjusted by pushing cylinders and lifting components to ensure that the cover is accurately buttted with the stator base housing, and finally the welding components are welded.

Benefits of technology

It improves the accuracy and efficiency of stator base welding and ensures the welding quality of the product.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223185841U_ABST
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Abstract

The utility model discloses a stator frame welding device, which belongs to the technical field of stator frame processing and comprises a base, stand columns are arranged at four corners of the bottom end of the base, a mounting block is fixedly mounted at the bottom end of the base, a placing plate is arranged above the base, a mounting groove is formed in the top end of the placing plate, and a limiting component is arranged at the top end of the placing plate. A lifting groove is formed in the top end of the mounting block, a lifting assembly is arranged between the containing plate and the mounting block, and mounting plates are fixedly mounted on the two sides of the base. According to the utility model, the limiting assembly is arranged to limit and fix the stator base shell, the clamping assembly is used to clamp the cover, then the pushing cylinder is used to drive the cover to move towards the stator base shell, and the lifting assembly is arranged to adjust the height of the stator base shell. And accurate butt joint of the machine cover and the stator base shell is facilitated, and the welding efficiency of equipment can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of stator frame processing, and more specifically, to a stator frame welding device. Background Technique

[0002] A stator frame is a component that supports the stator core or core assembly and the stator winding, and is welded by end covers, annular middle partitions, outer cover plates, ventilation ducts, support members, etc. through a welding device.

[0003] Some existing stator frame welding devices do not have a calibration component, and some components may need to be manually supported for welding. For example, when the stator frame housing is docked with the end covers at both ends, it needs to be manually aligned and fitted, and then welded by the welding device. In this way, the fitting accuracy during the welding of the end covers is relatively low, which may affect the subsequent use of the stator frame and reduce the processing quality of the product. Therefore, in order to solve the above problems, we propose a stator frame welding device. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides a stator frame welding device, and adopts the following technical scheme:

[0005] A stator frame welding device includes a base. Columns are provided at the four corners of the bottom end of the base. An installation block is fixedly installed at the bottom end of the base. A placement plate is provided above the base. An installation groove is opened at the top end of the placement plate. A limiting component is provided at the top end of the placement plate. A lifting groove is opened at the top end of the installation block. A lifting component is provided between the placement plate and the installation block. Installation plates are fixedly installed on both sides of the base. The cross-sections of the two installation plates are both in the shape of "L". Pushing cylinders are provided inside the vertical sections of the two installation plates. Clamping components are provided at the ends of the piston shafts of the two pushing cylinders;

[0006] A support plate is fixedly installed on one side of the base. The cross-section of the support plate is in the shape of an inverted "L". A support box is fixedly installed at the bottom end of the horizontal section of the support plate. A welding component is provided inside the support box.

[0007] By adopting the above technical scheme, when the device is in use, the staff places the stator frame housing on the placement plate, and then operates the limiting component to clamp and fix the stator frame housing, which is beneficial to maintaining the stability of the placement of the stator frame housing. After the stator frame housing is clamped, the staff fixes the top cover through the clamping component, and then drives the top cover on the same side to move towards the opposite side of the stator frame housing through the pushing cylinder, and can drive the placement plate to lift the stator frame housing through the lifting component, so as to facilitate the accurate fitting of the opposite side of the top cover and the stator frame housing, which is beneficial to improving the welding quality of the product. When the top cover and the stator frame housing are fitted, the welding component operates to weld the product.

[0008] Furthermore, the limiting component includes two second support blocks slidably installed in the installation groove. A double-shaft cylinder is fixedly installed in the middle part of the installation groove. The two piston shaft ends of the double-shaft cylinder are respectively fixedly connected to the opposite sides of the second support blocks on the same side. Installation rods are fixedly installed at the tops of the two second support blocks. Clamping rings are fixedly installed on the opposite sides of the two installation rods. Roller shafts distributed in an arc array are rotatably installed on the inner sides of the two clamping rings.

[0009] By adopting the above technical solution, after the stator frame housing is placed on the top of the placement plate, the double-shaft cylinder is driven to drive the two second support blocks to slide in the installation groove. The second support blocks synchronously move the installation rods and clamping rings on the same side. Through the cooperation of the two clamping rings, the stator frame housing can be clamped and limited, which is beneficial to maintaining the stability of the placement of the stator frame housing. Since the two clamping rings are arc-shaped, it is convenient to clamp and fix stator frame housings of different sizes.

[0010] Furthermore, the lifting component includes a lifting block slidably installed in the lifting groove. The top of the lifting block is slidably installed with a base and is fixedly connected to the bottom end of the placement plate. The inner wall of the bottom end of the lifting groove is rotatably installed with a lifting screw rod. A thread groove matching the lifting screw rod is opened at the bottom end of the lifting block. A driven gear is fixedly sleeved on the side wall of the lower section of the lifting screw rod. A third reduction motor is fixedly installed on the inner wall of the bottom end of the lifting groove. A driving gear is fixedly sleeved on the side wall of the output shaft of the third reduction motor. The driving gear and the driven gear are meshed.

[0011] By adopting the above technical solution, after the stator frame housing is clamped, the third reduction motor is driven to drive the driving gear to rotate. The driving gear drives the driven gear to rotate. The driven gear drives the lifting screw rod to rotate. The lifting screw rod drives the lifting block to slide in the lifting groove. The lifting block drives the placement plate and the stator frame housing to be lifted and lowered synchronously, so as to adjust the height of the stator frame housing, which is convenient for the accurate docking of the stator frame housing and the top cover and is convenient for subsequent welding.

[0012] Furthermore, sliding blocks are fixedly installed on both sides of the lower section of the lifting block. Sliding grooves matching the sliding blocks on the same side are opened on the inner wall of the lifting groove. Support frames are fixedly installed on both sides of the upper section of the lifting block. The tops of the two support frames are fixedly connected to the bottom end of the placement plate. Grooves matching the support frames are opened at the top end of the base.

[0013] By adopting the above technical solution, when the lifting block is lifted and lowered, the lifting block moves the sliding blocks to slide in the sliding grooves on the same side. Through the cooperation of the sliding blocks and the sliding grooves, it is beneficial to maintain the stability of the lifting and lowering of the lifting block and helps to prevent the lifting block from disengaging from the lifting groove. And there are support frames between the lifting block and the placement plate, which can play a role in supporting and stabilizing the placement plate.

[0014] Further, the clamping component includes mounting boxes fixedly installed at the end of the piston shaft of the pushing air cylinder. Second reduction motors are fixedly installed in both of the mounting boxes. Rotating rods are fixedly installed at the ends of the output shafts of the two second reduction motors. The opposite ends of the two rotating rods penetrate through the mounting boxes of the same group. Three-jaw chucks are fixedly installed at the opposite ends of the two rotating rods.

[0015] By adopting the above technical solution, the staff fixes the top cover through the three-jaw chuck, and then drives the mounting box, the three-jaw chuck and the top cover on the same side to move synchronously through the pushing air cylinder, so that the side of the top cover opposite to the stator frame housing fits, and then welding can be carried out. When the equipment welds the product, the second reduction motor drives the rotating rod and the three-jaw chuck on the same side to rotate synchronously, thereby playing a role in driving the top cover and the stator frame housing to rotate, facilitating the welding of the docking part of the product by the equipment, and being beneficial to improving the welding efficiency of the equipment.

[0016] Further, mounting discs are fixedly sleeved on the side walls of the ends where the two rotating rods penetrate through the mounting boxes on the same side. Annular grooves are opened on the opposite sides of the two mounting boxes. A plurality of stabilizing blocks distributed in an annular array are rotatably installed in both of the annular grooves. The stabilizing blocks of the same group are fixedly connected to the opposite sides of the mounting discs on the same side away from the pushing air cylinder on the same side.

[0017] By adopting the above technical solution, due to the arrangement of the mounting disc on the side wall of the rotating rod, when the rotating rod rotates, the rotating rod drives the mounting disc to rotate synchronously, and the mounting disc drives the stabilizing blocks of the same group to slide in the annular groove on the same side. Through the cooperation of the stabilizing blocks and the annular groove, it is beneficial to maintain the stability of the rotation of the three-jaw chuck.

[0018] Further, the welding component includes a double-threaded screw rod rotatably installed in the support box. Two symmetrically distributed first support blocks are sleeved on the side wall of the double-threaded screw rod. The bottom ends of the two first support blocks slide through the support box. Expansion rods are fixedly installed at the bottom ends of the two first support blocks. Welding torches are arranged at the ends of the two expansion rods. A protection box is fixedly installed on one side of the support box. A first reduction motor is fixedly installed in the protection box. One end of the double-threaded screw rod penetrates through the protection box and is fixedly connected to the end of the output shaft of the first reduction motor. Limit blocks are fixedly installed on both sides of the two first support blocks. Limit grooves matching the limit blocks on the same side are opened on the inner wall of the support box.

[0019] By adopting the above technical solution, after the top cover is precisely fitted with the stator frame housing, the double-threaded screw rod is driven to rotate by the first reduction motor. The double-threaded screw rod drives two first support blocks to slide in the support box. The first support block moves the telescopic rod and the welding torch on the same side synchronously, thereby playing a role in adjusting the distance between the two welding torches, facilitating the movement of the welding torch above the joint of the top cover and the stator frame housing. Subsequently, the welding torch is driven to move downward by the telescopic rod, and thus the welding function can be achieved. Through the cooperation of structures such as the first reduction motor, the double-threaded screw rod, and the first support block, it is convenient for the equipment to weld products of different sizes.

[0020] In summary, the utility model includes the following beneficial technical effects:

[0021] (1) In the utility model, through the setting of the limiting component, it plays a role in limiting and fixing the stator frame housing. And the machine cover is clamped by the clamping component. Subsequently, the machine cover is driven to move towards the stator frame housing by the pushing cylinder. And through the setting of the lifting component, it can play a role in adjusting the height of the stator frame housing, facilitating the precise docking of the machine cover and the stator frame housing, and being conducive to improving the welding efficiency of the equipment.

[0022] (2) In the utility model, through the setting of the welding component, it plays a role in welding products. And the double-threaded screw rod is driven to rotate by the first reduction motor, thereby driving two first support blocks to move in the support box, and further playing a role in adjusting the distance between the two welding torches, facilitating the welding of products of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a stator frame welding device;

[0024] Figure 2 is the utility model Figure 1 the enlarged view of A therein;

[0025] Figure 3 is a sectional view of the utility model;

[0026] Figure 4 is the utility model Figure 3 the enlarged view of B therein;

[0027] Figure 5 is the utility model Figure 3 the enlarged view of C therein;

[0028] Figure 6 is an exploded view of the limiting component in the utility model.

[0029] Description of the reference numerals in the drawings:

[0030] 1. Base; 2. Mounting plate; 3. Pushing cylinder; 4. Installation box; 5. Three-jaw chuck; 6. Support plate; 7. Protection box; 8. Support box; 9. Telescopic rod; 10. Welding torch; 11. Mounting rod; 12. Placing plate; 13. Lifting block; 14. Mounting block; 15. Clamping ring; 16. First reduction motor; 17. Double-threaded screw rod; 18. First support block; 19. Second reduction motor; 20. Installation groove; 21. Second support block; 22. Double-shaft cylinder; 23. Lifting groove; 24. Third reduction motor; 25. Driving gear; 26. Lifting screw rod; 27. Driven gear; 28. Rotating rod; 29. Mounting disc. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] The following will further describe the present invention in detail with reference to the Figures 1-6 accompanying drawings.

[0035] Please refer to Figures 1-6, a stator frame welding device, including a base 1. Columns are provided at the four corners of the bottom end of the base 1. An installation block 14 is fixedly installed at the bottom end of the base 1. Above the base 1, there is a placement plate 12. An installation groove 20 is opened at the top end of the placement plate 12. A limiting component is provided at the top end of the placement plate 12. The limiting component includes two second support blocks 21 slidably installed in the installation groove 20. In the middle part of the installation groove 20, a double-shaft cylinder 22 is fixedly installed. The two piston shaft ends of the double-shaft cylinder 22 are respectively fixedly connected to the opposite sides of the second support blocks 21 on the same side. Installation rods 11 are fixedly installed at the top ends of the two second support blocks 21. Clamping rings 15 are fixedly installed on the opposite sides of the two installation rods 11. Rollers distributed in an arc array are rotatably installed on the inner sides of the two clamping rings 15. When the device is in use, the staff places the stator frame housing on the placement plate 12. Subsequently, the double-shaft cylinder 22 is used to drive the two second support blocks 21 to slide in the installation groove 20. The second support blocks 21 carry the installation rods 11 and the clamping rings 15 on the same side to move synchronously. Through the cooperation of the two clamping rings 15, the function of clamping and limiting the stator frame housing can be achieved, which is beneficial to maintaining the stability of the placement of the stator frame housing. By arranging the two clamping rings 15 in an arc shape, it is convenient to clamp and fix stator frame housings of different sizes.

[0036] A lifting groove 23 is opened at the top end of the installation block 14. A lifting component is provided between the placement plate 12 and the installation block 14. The lifting component includes a lifting block 13 slidably installed in the lifting groove 23. The top end of the lifting block 13 is slidably installed on the base 1 and is fixedly connected to the bottom end of the placement plate 12. A lifting screw 26 is rotatably installed on the inner wall of the bottom end of the lifting groove 23. A screw groove matching the lifting screw 26 is opened at the bottom end of the lifting block 13. A driven gear 27 is fixedly sleeved on the side wall of the lower section of the lifting screw 26. A third reduction motor 24 is fixedly installed on the inner wall of the bottom end of the lifting groove 23. A driving gear 25 is fixedly sleeved on the output shaft side wall of the third reduction motor 24. The driving gear 25 and the driven gear 27 are meshed. After the stator frame housing is clamped, the third reduction motor 24 is used to drive the driving gear 25 to rotate. The driving gear 25 drives the driven gear 27 to rotate. The driven gear 27 drives the lifting screw 26 to rotate. The lifting screw 26 drives the lifting block 13 to slide in the lifting groove 23. The lifting block 13 drives the placement plate 12 and the stator frame housing to lift synchronously, so as to achieve the function of adjusting the height of the stator frame housing, which is convenient for the precise docking of the stator frame housing and the top cover and is convenient for subsequent welding.

[0037] Sliders are fixedly installed on both sides of the lower segment of the lifting block 13. Sliding grooves matching the sliders on the same side are formed on the inner wall of the lifting groove 23. Support frames are fixedly installed on both sides of the upper segment of the lifting block 13. The tops of the two support frames are fixedly connected to the bottom end of the placement plate 12. Grooves matching the support frames are formed at the top of the base 1. When the lifting block 13 moves up and down, the lifting block 13 carries the sliders to slide in the sliding grooves on the same side. Through the cooperation of the sliders and the sliding grooves, it is beneficial to maintain the stability of the lifting of the lifting block 13 and helps to prevent the lifting block 13 from disengaging from the lifting groove 23. Moreover, a support frame is provided between the lifting block 13 and the placement plate 12, which can play a role in supporting and stabilizing the placement plate 12.

[0038] Installation plates 2 are fixedly installed on both sides of the base 1. The cross-sections of the two installation plates 2 are both in the shape of "L". Pushing cylinders 3 are provided on the inner sides of the vertical segments of the two installation plates 2. Clamping components are provided at the ends of the piston shafts of the two pushing cylinders 3. The clamping component includes an installation box 4 fixedly installed at the end of the piston shaft of the pushing cylinder 3. Second reduction motors 19 are fixedly installed in the two installation boxes 4. Rotating rods 28 are fixedly installed at the ends of the output shafts of the two second reduction motors 19. The opposite ends of the two rotating rods 28 penetrate through the installation box 4 of the same group. Three-jaw chucks 5 are fixedly installed at the opposite ends of the two rotating rods 28. The staff top cover is fixed by the three-jaw chuck 5. Subsequently, the pushing cylinder 3 is used to drive the installation box 4, the three-jaw chuck 5 and the top cover on the same side to move synchronously, so that the side of the top cover opposite to the stator frame housing fits. Then welding can be carried out. When the equipment welds the product, the second reduction motor 19 is used to drive the rotating rod 28 and the three-jaw chuck 5 on the same side to rotate synchronously, thereby playing a role in driving the top cover and the stator frame housing to rotate, facilitating the welding of the docking part of the product by the equipment, and being beneficial to improving the welding efficiency of the equipment. A roller is rotatably installed inside the clamping ring 15, which is convenient for the rotation of the stator frame housing.

[0039] Installation discs 29 are fixedly sleeved on the side walls of the ends of the two rotating rods 28 penetrating through the installation box 4 on the same side. Annular grooves are formed on the opposite sides of the two installation boxes 4. A plurality of stabilizing blocks distributed in an annular array are rotatably installed in the two annular grooves. The sides of the stabilizing blocks in the same group away from the pushing cylinder 3 on the same side are fixedly connected to the opposite sides of the installation disc 29 on the same side. Through the setting of the installation disc 29 on the side wall of the rotating rod 28, when the rotating rod 28 rotates, the rotating rod 28 carries the installation disc 29 to rotate synchronously. The installation disc 29 carries the stabilizing blocks in the same group to slide in the annular groove on the same side. Through the cooperation of the stabilizing blocks and the annular groove, it is beneficial to maintain the stability of the rotation of the three-jaw chuck 5.

[0040] On one side of the base 1, a support plate 6 is fixedly installed. The cross-section of the support plate 6 is in an inverted "L" shape. At the bottom end of the horizontal section of the support plate 6, a support box 8 is fixedly installed. A welding assembly is arranged inside the support box 8. The welding assembly includes a double-threaded screw rod 17 rotatably installed inside the support box 8. Two symmetrically distributed first support blocks 18 are sleeved on the side wall of the double-threaded screw rod 17. The bottom ends of the two first support blocks 18 both slide through the support box 8. The bottom ends of the two first support blocks 18 are both fixedly installed with telescopic rods 9. Welding torches 10 are arranged at the ends of the two telescopic rods 9. A protective box 7 is fixedly installed on one side of the support box 8. A first reduction motor 16 is fixedly installed inside the protective box 7. One end of the double-threaded screw rod 17 penetrates through the protective box 7 and is fixedly connected to the end of the output shaft of the first reduction motor 16. Limit blocks are fixedly installed on both sides of the two first support blocks 18. Limit grooves matching the limit blocks on the same side are opened on the inner wall of the support box 8.

[0041] After the top cover is precisely fitted with the stator frame housing, the first reduction motor 16 is driven to drive the double-threaded screw rod 17 to rotate. The double-threaded screw rod 17 drives the two first support blocks 18 to slide inside the support box 8. The first support blocks 18 carry the telescopic rods 9 and the welding torches 10 on the same side to move synchronously, thereby playing a role in adjusting the distance between the two welding torches 10, facilitating the movement of the welding torches 10 above the joint of the top cover and the stator frame housing. Subsequently, the welding torches 10 are driven to move downward by the telescopic rods 9, and the welding function can be achieved. Through the cooperation of structures such as the first reduction motor 16, the double-threaded screw rod 17, and the first support blocks 18, it is convenient for the equipment to weld products of different sizes.

[0042] The implementation principle of the embodiment of the present utility model is as follows: When the equipment is in use, the staff places the stator frame housing on the placing plate 12, and then through the operation of the limiting component, the stator frame housing is clamped and fixed, which is beneficial to maintaining the stability of the placement of the stator frame housing. After the stator frame housing is clamped, the staff fixes the top cover through the clamping component, and then drives the top cover on the same side to move towards the opposite side of the stator frame housing by the pushing cylinder 3, and the placing plate 12 can be driven to lift and lower the stator frame housing through the lifting component, thereby facilitating the precise fitting of the opposite side of the top cover and the stator frame housing, which is beneficial to improving the welding quality of the product. After the top cover is fitted with the stator frame housing, through the operation of the welding assembly, the product can be welded.

[0043] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A stator frame welding device, comprising a base (1), characterized in that: The four corners of the bottom of the base (1) are provided with columns, the bottom of the base (1) is fixedly installed with a mounting block (14), a placement plate (12) is provided above the base (1), the top of the placement plate (12) is provided with a mounting groove (20), the top of the placement plate (12) is provided with a limit assembly, the top of the mounting block (14) is provided with a lifting groove (23), a lifting assembly is provided between the placement plate (12) and the mounting block (14), mounting plates (2) are fixedly installed on both sides of the base (1), the cross sections of the two mounting plates (2) are both "L"-shaped, the inner sides of the vertical sections of the two mounting plates (2) are provided with a pushing cylinder (3), and the piston shaft ends of the two pushing cylinders (3) are provided with a clamping assembly; A support plate (6) is fixedly mounted on one side of the base (1); the cross section of the support plate (6) is in an inverted "L" shape; a support box (8) is fixedly mounted on the bottom end of the horizontal section of the support plate (6); a welding assembly is provided in the support box (8).

2. The stator frame welding device according to claim 1, characterized in that: The limiting assembly includes two second support blocks (21) slidably mounted in the mounting groove (20), a dual-axis cylinder (22) is fixedly mounted in the middle portion of the mounting groove (20), and the ends of the two piston shafts of the dual-axis cylinder (22) are respectively fixedly connected to the opposite sides of the second support block (21) on the same side, a mounting rod (11) is fixedly mounted on the top of the two second support blocks (21), and a clamping ring (15) is fixedly mounted on the opposite sides of the two mounting rods (11), and rollers distributed in an arc array are rotatably mounted on the inner sides of the two clamping rings (15).

3. The stator frame welding device according to claim 1, characterized in that: The lifting assembly comprises a lifting block (13) slidably mounted in a lifting slot (23); a base (1) is slidably mounted on the top of the lifting block (13) and fixedly connected to the bottom of the placement plate (12); a lifting screw (26) is rotatably mounted on the inner wall of the bottom end of the lifting slot (23); a screw groove matching the lifting screw (26) is provided at the bottom end of the lifting block (13); a driven gear (27) is fixedly mounted on the side wall of the lower section of the lifting screw (26); a third reduction motor (24) is fixedly mounted on the inner wall of the bottom end of the lifting slot (23); a driving gear (25) is fixedly mounted on the side wall of the output shaft of the third reduction motor (24); and the driving gear (25) is meshed with the driven gear (27).

4. The stator frame welding device according to claim 3, characterized in that: Slide blocks are fixedly mounted on both sides of the lower section of the lifting block (13); a sliding groove matching the slide blocks on the same side is provided on the inner wall of the lifting groove (23); support frames are fixedly mounted on both sides of the upper section of the lifting block (13); the top ends of the two support frames are fixedly connected to the bottom end of the placement plate (12); and a groove matching the support frames is provided on the top end of the base (1).

5. The stator frame welding device according to claim 1, characterized in that: The clamping assembly comprises a mounting box (4) fixedly mounted on the end of the piston shaft of the pushing cylinder (3), a second reduction motor (19) being fixedly mounted in each of the two mounting boxes (4), a rotating rod (28) being fixedly mounted on the end of the output shaft of each of the two second reduction motors (19), opposite ends of the two rotating rods (28) passing through the mounting box (4) of the same group, and a three-jaw chuck (5) being fixedly mounted on the opposite ends of the two rotating rods (28).

6. The stator frame welding device according to claim 5, characterized in that: The two rotating rods (28) pass through the side wall of one end of the installation box (4) on the same side and are fixedly sleeved with a mounting plate (29). An annular groove is provided on the opposite side of the two installation boxes (4). A plurality of stabilizing blocks distributed in an annular array are rotatably installed in the two annular grooves. The side of the stabilizing blocks in the same group away from the pushing cylinder (3) on the same side is fixedly connected to the side opposite to the mounting plate (29) on the same side.

7. The stator frame welding device according to claim 1, characterized in that: The welding assembly includes a double-thread screw (17) rotatably mounted in a support box (8), the side wall of the double-thread screw (17) is sleeved with two symmetrically distributed first support blocks (18), the bottom ends of the two first support blocks (18) are slidably passed through the support box (8), the bottom ends of the two first support blocks (18) are fixedly mounted with telescopic rods (9), and the ends of the two telescopic rods (9) are provided with welding guns (10), a protective box (7) is fixedly mounted on one side of the support box (8), a first reduction motor (16) is fixedly mounted in the protective box (7), one end of the double-thread screw (17) passes through the protective box (7) and is fixedly connected to the end of the output shaft of the first reduction motor (16), and limiting blocks are fixedly mounted on both sides of the two first support blocks (18), and a limiting groove matching the limiting block on the same side is opened on the inner wall of the support box (8).