Flat wire stator welding end ring cutting head tooling

Abstract

This invention relates to the field of motor stator manufacturing technology, specifically a cutting head tooling for circumferential cutting of the welding end of flat wire stators. It includes a first cutter, a second cutter, a positioning pin, a hanging plate, a reducer base, a gear retaining ring, a gear, a reducer, a motor, a gasket, a rotating gear ring, an angle adjustment block, a cutting base, a rotating sleeve, a moving cutter holder, a rotating sleeve cover plate, a fixing hole, a positioning post, a fixed cutter disc, and a fixing bracket. In this invention, the motor, controlled by the reducer, drives the gear to rotate, thereby driving the rotating gear ring to rotate. The power output is stable with minimal speed fluctuation. The cutting base and rotating sleeve are double-fixed using a snap-fit ​​connection and positioning pin, offsetting the circumferential cutting torque and preventing cutter disc deformation. An electric push rod drives the squeezing and moving retaining ring, and a buffer squeezing spring and pressure sensor provide real-time feedback on the clamping force to avoid overpressure damage to the stator. The motor controls the rotation of the auxiliary clamping plate to adapt to stators of different sizes. Mirror-symmetrical clamping and limiting retaining rings ensure the stator is centered and fixed, eliminating cutting skew.

Description

Technical Field

[0001] This invention relates to the field of motor stator manufacturing technology, specifically to a cutting head tool for circumferential cutting of the welding end of flat wire stators. Background Technology

[0002] In the production of flat wire stators, the traditional stator assembly uses the U-PIN process. However, with technological advancements, the U-mini-PIN ultra-low soldering process is now employed. The main difference lies in the significant reduction in the length of the straight section in the U-mini-PIN process. This improvement effectively reduces costs and increases conductivity. However, due to the shortened straight section, the original processing equipment's process route is no longer suitable: the production line needs to add welding fixtures that move with the stator assembly; the B-end cutting and lead wire cutting equipment needs to be adapted to the stator assembly with welding fixtures for processing; and the B-end welding machine needs to eliminate its automatic clamping function and be replaced with an assembly with built-in welding fixtures. Due to structural limitations, existing equipment cannot meet the requirements of the new process. Specifically, it is difficult to accurately control the height of the straight section at end B and the size of the lead wire after the cut, which easily leads to problems such as copper wire tilting, exposed copper, extrusion deformation, and damage to the rounded corners. It cannot facilitate the accurate and convenient cutting of copper wires at the stator welding end. After the straight section is shortened, the size of the traditional cutting disc is limited, which easily deforms and leads to insufficient cutting accuracy. Copper wire is prone to tilting, exposed copper, and extrusion deformation of the rounded corners during cutting. It cannot adapt to the stator transfer requirements with welding fixtures, affecting the automation continuity of the production line. Therefore, it is urgent to design a new circumferential cutting head fixture to solve the above problems. Summary of the Invention

[0003] To address the problems in the prior art, this invention provides a tooling for circumferential cutting of the welding end of a flat wire stator.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a flat wire stator welding end circumferential cutting head fixture, comprising a first cutter, a second cutter, a positioning pin, a hanging plate, a reducer base, a gear retaining ring, a gear, a reducer, a motor, a gasket, a rotating gear ring, an angle adjusting block, a cutting base, a rotating sleeve, a movable cutter holder, a rotating sleeve cover plate, a fixing hole, a positioning pin, a fixed cutter disc, and a fixed bracket. The reducer is connected to the front end of the motor, the reducer base is disposed at the upper end of the reducer, the gear retaining ring is disposed in the middle of the reducer base, the gear is rotatably mounted inside the gear retaining ring by the hanging plate and the gasket, the cutting base is disposed inside the gear, the rotating sleeve is rotatably engaged inside the cutting base, the angle adjusting block is fixedly mounted on the side end of the cutting base, the upper end of the rotating gear ring is secured to the bottom end of the rotating sleeve by the positioning pin, the movable cutter holder is engaged inside the rotating sleeve, the fixed bracket is fixedly mounted inside the movable cutter holder, and the first cutter and the second cutter are fixedly mounted on the fixed bracket. The rotating sleeve cover plate is fixedly installed on the cutting base through fixing holes and bolts. The positioning pins are evenly fixed on the rotating sleeve cover plate. The fixed blade disc is fixedly installed in the middle of the rotating sleeve cover plate. After the stator is flipped, the copper wire at the welding end is inserted into the interior of the fixed blade disc. Then the motor is started. The motor is reduced in speed by the reducer and drives the gear to rotate at a uniform and stable speed. The rotating gear can drive the rotating gear ring to rotate synchronously. The rotating gear ring can drive the fixedly connected rotating sleeve to rotate stably inside the cutting base. Since the moving blade holder is fixedly connected to the rotating sleeve, the rotating sleeve can drive the moving blade holder to rotate synchronously. The rotating moving blade holder can drive the internal fixed bracket and the first and second cutting blades fixedly installed on the fixed bracket to rotate between the rotating sleeve cover plate and the cutting base. This allows the copper wire inserted by the fixed blade disc into the rotating sleeve cover plate and the cutting base to be quickly circumcised by the high-speed rotating first and second cutting blades. The first and second cutting blades can adapt to different types of copper wires in different positions to complete the circumcising process.

[0005] Preferably, the rotating sleeve, the moving blade holder, the first cutter, and the second cutter are all located inside the rotating sleeve cover and the cutting base, with the first cutter and the second cutter located below the fixed blade disc.

[0006] Preferably, the fixed blade disc has a guide groove array at its center that matches the shape of the copper wire. The groove depth is 3-5mm, and the groove width is 0.05-0.1mm larger than the diameter of the copper wire to prevent squeezing. The groove wall is plated with a hard chrome layer to reduce friction. A limit post is set at the bottom of the groove to control the insertion depth of the copper wire, ensuring that the height of the straight section is uniformly 4±0.1mm. The first cutter is a V-shaped blade with an angle of 60°, used to cut the main copper wire. The second cutter is a rounded blade with an R angle of 0.2mm, specifically used to protect the rounded corner of the lead wire. Both are made of hard alloy and are fixed to the fixed bracket (21) by adjustable screws. The angle adjustment range is ±5°. An anti-torsion keyway is provided between the rotating sleeve and the moving blade holder. The key is 8mm wide and 5mm deep to eliminate the radial runout of the cutter.

[0007] Preferably, the fixed blade disc is provided with a first auxiliary clamping limiting device and a second auxiliary clamping limiting device on the side opposite to the rotating gear ring.

[0008] Preferably, the first auxiliary clamping limiting device and the second auxiliary clamping limiting device have the same structure, and the first auxiliary clamping limiting device and the second auxiliary clamping limiting device are arranged in a mirror-symmetrical manner.

[0009] Preferably, the second auxiliary clamping and limiting device includes a buffer compression spring, a compression moving retaining ring, a clamping and limiting retaining ring, a fixed mounting hole, a track plate, a fixed mounting bracket, and an electric push rod. The fixed mounting bracket is fixedly installed at the end of the track plate, and the electric push rod is fixedly installed on the fixed mounting bracket. The fixed mounting hole is evenly opened through both sides of the inner end of the track plate. The compression moving retaining ring is slidably engaged with the track plate. The front end of the electric push rod is fixedly connected to the middle of the outer end of the compression moving retaining ring. The buffer compression spring is evenly fixedly installed inside the side end of the compression moving retaining ring opposite to the electric push rod. The clamping and limiting retaining ring is fixedly installed inside the side of the compression moving retaining ring opposite to the electric push rod by means of the buffer compression spring.

[0010] Preferably, an auxiliary clamping plate is rotatably mounted on the upper middle part of the compression moving circlip, and a motor is fixedly mounted on one side of the upper middle part of the compression moving circlip, and the driving end of the motor is fixedly connected to the outer side of the bottom end of the auxiliary clamping plate.

[0011] Preferably, the track plate has a sliding locking plate inside, and the end of the sliding locking plate opposite to the fixed mounting frame is fixedly connected to the compression moving locking ring.

[0012] Preferably, the upper end of the auxiliary clamping plate is arranged in an arc-shaped and smooth manner, and a pressure sensor is fixedly installed between the end of the buffer compression spring away from the clamping limit ring and the compression moving ring.

[0013] Preferably, both the compression moving retaining ring and the clamping limiting retaining ring are semi-circular in shape.

[0014] This invention has at least the following beneficial effects:

[0015] I. In this invention, the motor drives the gear to rotate via a reducer, which in turn drives the rotating gear ring to rotate. The power output is stable with minimal speed fluctuation. The cutting base and rotating sleeve are double-fixed using a snap-fit ​​and positioning pin, offsetting the circumferential cutting torque and preventing blade deformation. An electric push rod drives the compression and movement of the retaining ring. A buffer compression spring and pressure sensor provide real-time feedback on the clamping force, preventing overpressure damage to the stator. The motor controls the rotation of the auxiliary clamping plate to adapt to stators of different sizes, improving versatility. Mirror-symmetrical clamping and limiting retaining rings ensure the stator is centered and fixed, eliminating cutting skew. The first and second cutters can cut different parts at different positions. The copper wire is adapted for circumferential cutting, making this fixture compatible with the U-mini-PIN ultra-low soldering process. It enables the transfer processing of flat wire stators with soldering fixtures without requiring large-scale modifications to existing production lines. Through precise mechanical structure design and transmission control, the height of the straight section at the B end after cutting can be stably controlled at around 4mm. The lead wire size can be flexibly adjusted according to customer requirements, resulting in high processing accuracy. The optimized guide groove of the fixed blade and the cutting edge design effectively prevent copper wire tilting and copper exposure during processing, and ensure that the copper wire's rounded corners are intact without extrusion deformation, significantly improving product quality.

[0016] II. This invention addresses the pain points of the U-mini-PIN process. Traditional U-PIN cutting discs, due to their long straight sections, cannot meet the precision requirement of shortening the straight section to 4mm in the U-mini-PIN process. This fixture addresses these issues by reconstructing the cutting disc structure, such as adjusting the force reference and designing thickness partitions, to adapt to ultra-low soldering processes. The fixture design supports direct transfer processing of stators with welding fixtures without disassembling the fixtures, seamlessly connecting to the automated production line process. This avoids downtime and modifications caused by fixture compatibility issues with traditional equipment. The height of the straight section at the B end is stably controlled at around 4mm, and the lead wire length can be customized as needed. Through the precise cooperation between the fixed cutting disc and the moving cutting seat, the alignment error between the cutting blade and the copper wire is ensured. The optimized guide groove design, namely the reduced entry size of the fixed cutting disc and the cutting blade edge shape, ensures no offset during copper wire cutting. A buffered cutting rotating sleeve is used for uniform speed transmission to avoid extrusion deformation.

[0017] Third, this invention can fully clamp and fix stators of different outer diameters to complete the circumferential cutting process, making the circumferential cutting process stable and precise, and ensuring accurate positioning of the copper wires. The fixing and mounting holes in the first and second auxiliary clamping and limiting devices allow the first and second auxiliary clamping and limiting devices to be fixed in designated positions for use. The first and second auxiliary clamping and limiting devices can assist in clamping and limiting the inverted stator, making the insertion of the copper wires at the stator welding end into the stator die and throughout the circumferential cutting process more secure and stable. When the inverted stator position is activated, the first auxiliary clamping and limiting device is activated simultaneously. The electric push rods in the first and second auxiliary clamping and limiting devices drive the mirror-symmetrically distributed compression moving rings to move stably forward along the track plate using sliding plates. This allows the mirror-symmetrically distributed clamping and limiting rings to secure the clamps that fit the outer end of the stator. The compression pressure sensor detects the compression force value through a buffer compression spring to determine whether the compression limiting is in place, ensuring sufficient clamping and fixing without damaging the stator. Activating the auxiliary clamping plate causes the symmetrically arranged auxiliary clamping plates to rotate, compressing and limiting both sides of the stator, providing auxiliary positioning and support, ensuring the stator is fully fixed, and making the copper wire circumferential cutting more precise. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the main body disassembly structure in this invention;

[0020] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 3 This is a top view of the main body in this invention;

[0022] Figure 4 This is a cross-sectional view of the main body in this invention;

[0023] Figure 5 This is a schematic diagram of the upper structure of the rotating gear ring in this invention;

[0024] Figure 6 This is a schematic diagram of the beveled rotating gear ring and rotating sleeve of the present invention;

[0025] Figure 7 This is a schematic diagram of the bottom structure of the fixed cutter head in this invention;

[0026] Figure 8 This is a schematic diagram of the fixed tool disc structure in this invention;

[0027] Figure 9This is a schematic diagram of the auxiliary clamping and limiting device in the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the second auxiliary clamping and limiting device in this invention.

[0029] In the diagram: 2. First cutter; 3. Second cutter; 4. Positioning pin; 5. Hanging plate; 6. Reducer base; 7. Gear retaining ring; 8. Gear; 9. Reducer; 10. Motor; 11. Shim; 12. Rotating gear ring; 13. Angle adjustment block; 14. Cutting base; 15. Rotating sleeve; 16. Moving cutter holder; 17. Rotating sleeve cover plate; 18. Fixing hole; 19. Positioning pin; 20. Fixed cutter disc; 21. Fixed card seat; 22. First auxiliary clamping limit device; 23. Second auxiliary clamping limit device; 24. Sliding card plate; 25. Motor; 26. Auxiliary clamping plate; 27. Buffer compression spring; 28. Compression moving retaining ring; 29. ​​Pressure sensor; 30. Clamping limit retaining ring; 31. Fixed mounting hole; 32. Track plate; 33. Fixed mounting bracket; 34. Electric push rod. Detailed Implementation

[0030] 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.

[0031] Example 1

[0032] like Figure 1-8As shown, the flat wire stator welding end circumferential cutting head tooling of the present invention includes a first cutter 2, a second cutter 3, a positioning pin 4, a hanging plate 5, a reducer base 6, a gear retaining ring 7, a gear 8, a reducer 9, a motor 10, a gasket 11, a rotating gear ring 12, an angle adjusting block 13, a cutting base 14, a rotating sleeve 15, a moving blade holder 16, a rotating sleeve cover plate 17, a fixing hole 18, a positioning pin 19, a fixed blade disc 20, and a fixing bracket 21. The reducer 9 is connected to the front end of the motor 10, the reducer base 6 is located at the upper end of the reducer 9, the gear retaining ring 7 is located in the middle of the reducer base 6, the gear 8 is rotatably mounted inside the gear retaining ring 7 by the hanging plate 5 and the gasket 11, the cutting base 14 is located inside the gear 8, and the rotating sleeve 15 is rotatably engaged with the cutting base 14. Inside, the angle adjustment block 13 is fixedly installed on the side of the cutting base 14. The upper end of the rotating gear ring 12 is fastened to the bottom end of the rotating sleeve 15 through the positioning pin 4. The moving blade holder 16 is fastened inside the rotating sleeve 15. The fixed bracket 21 is fixedly installed inside the moving blade holder 16. The first cutter 2 and the second cutter 3 are fixedly installed on the fixed bracket 21. The rotating sleeve cover plate 17 is fixedly installed on the cutting base 14 through the fixing hole 18 and bolts. The positioning pins 19 are evenly fastened on the rotating sleeve cover plate 17. The fixed blade disc 20 is fixedly installed in the middle of the rotating sleeve cover plate 17. The rotating sleeve 15, the moving blade holder 16, the first cutter 2 and the second cutter 3 are all located inside the rotating sleeve cover plate 17 and the cutting base 14. The first cutter 2 and the second cutter 3 are located below the fixed blade disc 20.

[0033] The fixed cutter head 20 has a guide groove array at its center that matches the shape of the copper wire. The groove depth is 3-5mm and the groove width is 0.05-0.1mm larger than the diameter of the copper wire to prevent extrusion. The groove wall is plated with a hard chrome layer to reduce friction. A limit post is set at the bottom of the groove to control the insertion depth of the copper wire and ensure that the height of the straight section is uniformly 4±0.1mm. The first cutter 2 has a V-shaped cutting edge with an angle of 60° and is used to cut the main copper wire. The second cutter 3 has a rounded cutting edge with an R angle of 0.2mm and is specifically used to protect the rounded corner of the lead wire. Both are made of hard alloy and are fixed to the fixed bracket 21 by adjustable screws. The angle adjustment range is ±5°. An anti-torsion keyway is provided between the rotating sleeve 15 and the moving cutter seat 16. The key is 8mm wide and 5mm deep to eliminate radial runout of the cutter.

[0034] The working principle of Example 1 is as follows: After the stator is flipped, the copper wire at the welding end is inserted into the interior of the fixed blade disc 20. Then, the motor 10 is started. The motor 10 is reduced in speed by the reducer 9 and drives the gear 8 to rotate at a uniform and stable speed. The rotating gear 8 can drive the rotating gear ring 12 to rotate synchronously. The rotating gear ring 12 can drive the fixed rotating sleeve 15 to rotate stably inside the cutting base 14. Since the moving blade holder 16 is fixedly connected to the rotating sleeve 15, the rotating sleeve 15 can drive the moving blade holder 16 to rotate synchronously. The rotating moving blade holder 16 can drive the internal fixed bracket 21, and the first cutter 2 and the second cutter 3 fixedly installed on the fixed bracket 21 to rotate between the rotating sleeve cover plate 17 and the cutting base 14, so that the copper wire inserted from the fixed blade disc 20 into the interior of the rotating sleeve cover plate 17 and the cutting base 14 is quickly cut by high-speed rotation. The high-speed rotating first cutter 2 and second cutter 3 perform circumferential cutting, and can adapt to different types of copper wires at different positions to complete the circumferential cutting process. This makes the fixture compatible with the U-mini-PIN ultra-low soldering process, enabling the transfer processing of flat wire stators with welding fixtures without large-scale modification of the original production line. Through precise mechanical structure design and transmission control, the height of the straight section at the B end after cutting can be stably controlled at about 4mm. The lead wire size can be flexibly adjusted according to customer requirements, with high processing accuracy. The optimized guide groove of the fixed blade plate and the cutting edge design effectively avoid copper wire tilting and copper exposure during processing, and ensure that the copper wire has intact rounded corners without extrusion deformation, significantly improving product quality. The transmission system of motor 10 and reducer 9 provides stable power and high cutting efficiency, meeting the needs of mass production.

[0035] Example 2

[0036] Based on Example 1, such as Figure 9-10As shown, a first auxiliary clamping limiting device 22 and a second auxiliary clamping limiting device 23 are provided on the side of the fixed cutter head 20 opposite to the rotating gear ring 12. The first auxiliary clamping limiting device 22 and the second auxiliary clamping limiting device 23 have the same structure and are arranged in a mirror-symmetrical manner. The second auxiliary clamping limiting device 23 includes a buffer compression spring 27, a compression moving retaining ring 28, a clamping limiting retaining ring 30, a fixed mounting hole 31, a track plate 32, a fixed mounting bracket 33, and an electric push rod 34. The fixed mounting bracket 33 is fixedly installed at the end of the track plate 32, and the electric push rod 34 is fixedly installed on the fixed mounting bracket 33. The fixed mounting hole 31 is evenly opened through both sides of the inner end of the track plate 32. The compression moving retaining ring 28 is slidably engaged with the track plate 32. The front end of the electric push rod 34 is fixedly connected to the middle of the outer end of the compression moving retaining ring 28. The compression springs 27 are evenly and fixedly installed inside the side end of the compression moving ring 28 away from the electric push rod 34. The clamping and limiting ring 30 is fixedly installed inside the side of the compression moving ring 28 away from the electric push rod 34 by the buffer compression springs 27. An auxiliary clamping plate 26 is rotatably installed in the middle of the upper end of the compression moving ring 28. A motor 25 is fixedly installed on one side of the middle of the upper end of the compression moving ring 28, and the driving end of the motor 25 is fixedly connected to the outer side of the bottom end of the auxiliary clamping plate 26. A sliding clamping plate 24 is slidably engaged inside the track plate 32, and the end of the sliding clamping plate 24 away from the fixed mounting bracket 33 is fixedly connected to the compression moving ring 28. The upper end of the auxiliary clamping plate 26 is arc-shaped and smooth. A pressure sensor 29 is fixedly installed between the end of the buffer compression spring 27 away from the clamping and limiting ring 30 and the compression moving ring 28. Both the compression moving ring 28 and the clamping and limiting ring 30 are semi-circular.

[0037] In implementing this embodiment, the fixing holes 31 provided in the first auxiliary clamping limiting device 22 and the second auxiliary clamping limiting device 23 allow the first auxiliary clamping limiting device 22 and the second auxiliary clamping limiting device 23 to be fixedly installed in designated positions for use. The first auxiliary clamping limiting device 22 and the second auxiliary clamping limiting device 23 can effectively clamp and limit the inverted stator, making the insertion of the copper wire at the stator welding end into the stator die 20 and throughout the circumferential cutting process more secure and stable. When the inverted stator position is activated, the electric pushers in the first auxiliary clamping limiting device 22 and the second auxiliary clamping limiting device 23 are simultaneously started. The rod 34, via the electric push rod 34, can drive the mirror-symmetrically distributed compression moving rings 28 to move stably forward along the track plate 32 using the sliding plate 24. This allows the mirror-symmetrically distributed clamping and limiting rings 30 to clamp and secure the outer end of the stator. The compression pressure value is detected by the buffer compression spring 27 and the compression pressure sensor 29 to determine whether the compression limit is in place. This ensures sufficient clamping and fixation without damaging the stator. The auxiliary clamping plate 26 is activated, causing the symmetrically arranged auxiliary clamping plate 26 to rotate and compress and limit both sides of the stator, providing auxiliary positioning support and ensuring that the stator is fully fixed, making the copper wire circumferential cutting more precise.

[0038] 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. A flat wire stator welding end circumferential cutting head fixture, comprising a first cutter (2), a second cutter (3), a positioning pin (4), a hanging plate (5), a reducer base (6), a gear retaining ring (7), a gear (8), a reducer (9), a motor (10), a gasket (11), a rotating gear ring (12), an angle adjusting block (13), a cutting base (14), a rotating sleeve (15), a moving cutter holder (16), a rotating sleeve cover plate (17), a fixing hole (18), a positioning pin (19), a fixed cutter disc (20), and a fixing bracket (21), characterized in that: The reducer (9) is connected to the front end of the motor (10). The reducer base (6) is located at the upper end of the reducer (9). The gear retaining ring (7) is located in the middle of the reducer base (6). The gear (8) is rotatably mounted inside the gear retaining ring (7) by means of a hanging plate (5) and a shim (11). The cutting base (14) is located inside the gear (8). The rotating sleeve (15) is rotatably engaged inside the cutting base (14). The angle adjusting block (13) is fixedly mounted on the side end of the cutting base (14). The upper end of the rotating gear ring (12) is connected to the fixed end of the gear (9). The positioning pin (4) is fixedly connected to the bottom end of the rotating sleeve (15), the moving blade holder (16) is engaged inside the rotating sleeve (15), the fixed holder (21) is fixedly installed inside the moving blade holder (16), the first cutter (2) and the second cutter (3) are fixedly installed on the fixed holder (21), the rotating sleeve cover plate (17) is fixedly installed on the cutting base (14) through the fixing hole (18) and bolts, the positioning pin (19) is evenly engaged on the rotating sleeve cover plate (17), and the fixed blade disc (20) is fixedly installed in the middle of the rotating sleeve cover plate (17).

2. The flat wire stator welding end circumferential cutting head tooling according to claim 1, characterized in that: The rotating sleeve (15), the moving blade holder (16), the first cutter (2) and the second cutter (3) are all located inside the rotating sleeve cover plate (17) and the cutting base (14), with the first cutter (2) and the second cutter (3) located below the fixed blade disc (20).

3. The flat wire stator welding end circumferential cutting head tooling according to claim 2, characterized in that: The fixed blade disc (20) is provided with a first auxiliary clamping limit device (22) and a second auxiliary clamping limit device (23) on the side opposite to the rotating gear ring (12).

4. The flat wire stator welding end circumferential cutting head tooling according to claim 3, characterized in that: The first auxiliary clamping limiting device (22) and the second auxiliary clamping limiting device (23) have the same structure, and the first auxiliary clamping limiting device (22) and the second auxiliary clamping limiting device (23) are arranged in a mirror-symmetrical manner.

5. The flat wire stator welding end circumferential cutting head tooling according to claim 4, characterized in that: The second auxiliary clamping and limiting device (23) includes a buffer compression spring (27), a compression moving retaining ring (28), a clamping and limiting retaining ring (30), a fixed mounting hole (31), a track plate (32), a fixed mounting bracket (33), and an electric push rod (34). The fixed mounting bracket (33) is fixedly installed at the end of the track plate (32), and the electric push rod (34) is fixedly installed on the fixed mounting bracket (33). The fixed mounting hole (31) is evenly opened through the inner end of the track plate (32). On one side, the compression moving ring (28) is slidably engaged on the track plate (32), the front end of the electric push rod (34) is fixedly connected to the middle of the outer end of the compression moving ring (28), the buffer compression spring (27) is evenly fixedly installed inside the side end of the compression moving ring (28) away from the electric push rod (34), and the clamping limiting ring (30) is fixedly installed inside the side of the compression moving ring (28) away from the electric push rod (34) by the buffer compression spring (27).

6. The flat wire stator welding end circumferential cutting head tooling according to claim 5, characterized in that: An auxiliary clamping plate (26) is rotatably mounted on the upper middle part of the compression moving circlip (28), and a motor (25) is fixedly mounted on one side of the upper middle part of the compression moving circlip (28), and the driving end of the motor (25) is fixedly connected to the outer side of the bottom end of the auxiliary clamping plate (26).

7. The flat wire stator welding end circumferential cutting head tooling according to claim 6, characterized in that: The track plate (32) is internally slidably connected to a sliding plate (24), and the end of the sliding plate (24) facing away from the fixed mounting bracket (33) is fixedly connected to the compression moving retaining ring (28).

8. The flat wire stator welding end circumferential cutting head tooling according to claim 7, characterized in that: The upper end of the auxiliary clamping plate (26) is arranged in an arc-shaped and smooth manner.

9. The flat wire stator welding end circumferential cutting head tooling according to claim 8, characterized in that: A pressure sensor (29) is fixedly installed between the end of the buffer compression spring (27) away from the clamping limit ring (30) and the compression moving ring (28).

10. The flat wire stator welding end circumferential cutting head tooling according to claim 9, characterized in that: Both the compression moving retaining ring (28) and the clamping limiting retaining ring (30) are semi-circular in shape.

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