Clamping tool for reducing the end height of welded ends of a flat wire stator

Abstract

The present application relates to positioning tool technical field, specifically relates to a kind of clamping tool for reducing the end height of flat wire stator welding end, including support chassis, the bottom of support chassis is symmetrically fixedly installed with extension cavity, the inside of extension cavity is slidably inserted with the lever, the bottom end of support chassis is symmetrically fixedly installed with guide column, support chassis top end is fixedly installed with support disc, the top of support disc is rotatably installed with welding positioning chuck and partition disc, and welding positioning chuck is located above partition disc, and the side end of welding positioning chuck and partition disc is fixedly installed with displacement slider, the both ends of support chassis are threadedly inserted with positioning bolt, the bottom end of support disc is slidably installed with flat wire stator, and the top of flat wire stator is fixedly installed with copper wire to be welded.By the setting of welding positioning chuck, partition disc, support device, positioning device and control device, the purposes of short pin wire welding and copper wire to be welded and welding tool fast and accurate alignment splicing are realized.

Description

Technical Field

[0001] This invention relates to the field of positioning tooling technology, specifically a clamping tooling for reducing the height of the welding end of a flat wire stator. Background Technology

[0002] Flat wire stator refers to a motor stator made of flat conductors (flat wires) with rectangular cross-section. It is an important technological direction for modern high-performance motors, and is widely used, especially in drive motors for new energy vehicles.

[0003] Clamping fixtures play a crucial role in the manufacturing process of flat wire stators, directly affecting the stator's forming accuracy, insulation performance, and the final motor performance. They ensure the stability of the stator core and flat wire windings during processing, preventing displacement or deformation, improving the consistency of the flat wire arrangement within the stator slots, and reducing performance deviations caused by misalignment. Clamping fixtures for flat wire stators are core equipment in high-quality motor manufacturing; their high precision and stability significantly improve production efficiency, product yield, and motor performance. As flat wire motors develop towards higher power densities, advanced technologies such as intelligent adaptive fixtures and digital twin debugging will further optimize the efficiency of clamping fixtures.

[0004] Currently, since the pins at the ends of flat wire motors all need to be welded, a certain straight section of the pin needs to be retained during welding for clamping by the welding fixture. Traditional flat wire welding fixtures use two clamping discs to clamp the pins. To ensure the strength of the clamping discs, the thickness of a single clamping disc must be at least 2mm, and the clamping height of the copper wire required for the two clamping discs must be at least 4mm. With the trend of miniaturization and high efficiency of flat wire motors, traditional welding fixtures cannot meet the requirements of short pin welding processes. At the same time, because the welding work relies on manual alignment and the inner hole angle of the fixture, it is impossible to achieve rapid and accurate alignment and splicing of the copper wire to be welded with the welding fixture. Therefore, an improved device is needed to address the above problems. Summary of the Invention

[0005] To address the problems in the prior art, the present invention provides a clamping fixture for reducing the height of the welding end of a flat wire stator.

[0006] The technical solution adopted by this invention to solve its technical problem is: a clamping fixture for reducing the height of the welding end of a flat wire stator, comprising a support base, an extension cavity symmetrically fixedly installed at the bottom of the support base, a toggle rod slidably inserted into the interior of the extension cavity, guide columns symmetrically fixedly installed at the bottom end of the support base, a support plate fixedly installed at the top end of the support base, a welding positioning chuck and a separator plate rotatably installed at the top end of the support plate, the welding positioning chuck being located above the separator plate, displacement sliders fixedly installed at the side ends of the welding positioning chuck and the separator plate, positioning bolts threaded into both ends of the support base, a flat wire stator slidably installed at the bottom end of the support plate, and a copper wire to be welded fixedly installed at the top end of the flat wire stator.

[0007] Specifically, a support device is slidably sleeved on the outer ring of the support base, and an adjustment device is slidably sleeved on both ends of the support device. A positioning device is fixedly installed on the top of both ends of the adjustment device.

[0008] Specifically, the support device includes a connecting back plate, a guide collar, a support ring, a guide roller, and a support extension arm. The support extension arm is symmetrically and rotatably installed inside the support ring. The guide roller is rotatably installed at the bottom of the support extension arm. The connecting back plate is fixedly installed at both ends of the support ring. The guide collar is symmetrically and fixedly installed on the side of the connecting back plate away from the support ring.

[0009] Specifically, the positioning device includes a connecting base rod, a movable groove, a supporting cavity, a partition, a return spring, a displacement slide plate, a limiting key, a movable guide rod, a positioning shaft, and an extension end plate. The connecting base rod is symmetrically fixedly installed at the top of the supporting cavity. The movable groove is symmetrically opened at the top of the supporting cavity and is located inside the connecting base rod. The partition plate is fixedly installed at one end inside the supporting cavity. The movable guide rod is symmetrically slidably inserted into the other end inside the supporting cavity. The displacement slide plate is fixedly installed at the end of the movable guide rod near the partition. The return spring is symmetrically fixedly installed between the partition and the displacement slide plate. The limiting key is fixedly installed at the end of the movable guide rod away from the displacement slide plate. The extension end plate is symmetrically fixedly installed at the top of the displacement slide plate. The positioning shaft is rotatably installed at the top of both ends of the extension end plate.

[0010] Specifically, the control device includes a first vertical frame, a support base, a plastic gasket, a second vertical frame, a synchronous base, a displacement sleeve, and a placement groove. The second vertical frame is symmetrically fixedly installed on both sides of the support base, and the first vertical frame is symmetrically fixedly installed at both ends of the support base. The displacement sleeve is slidably sleeved on the outer ring of the first vertical frame. The synchronous base is symmetrically rotatably installed on both sides of the displacement sleeve. The placement groove is opened at the bottom of the support base, and the plastic gasket is fixedly installed at the center of the bottom end of the placement groove.

[0011] Specifically, the connecting base rod is fixedly installed on the top of the side end of the second vertical frame, the end of the synchronous base frame away from the displacement sliding sleeve is rotatably installed on the positioning shaft, and the extension end plate is slidably inserted into the interior of the movable groove.

[0012] Specifically, the guide collar is slidably sleeved on the outer ring of the second vertical frame, and the support base is fixedly installed between the two support extension arms.

[0013] Specifically, a rotating ring is fixedly installed at the top of the support extension arm, and an arc groove is opened in the inner ring of the support ring. A positioning groove that matches the rotating ring is opened at the top of the arc groove. The bottom of the side end of the limiting key away from the movable guide rod and the top of the side end of the guide collar away from the support ring are both inclined at 45°.

[0014] Specifically, the guide collar has a square hole inside, the bottom end of the guide roller contacts the bottom of the arc groove of the inner ring of the support ring, the support ring and the placement groove are on the same axis, and the plastic gasket is vertically aligned with the support base.

[0015] Specifically, the four corners of the displacement sleeve are provided with sleeve holes that are adapted to the first vertical frame, and the bottom end of the support extension arm is fixedly installed with an extension wing plate, and the extension wing plate is connected to the support base frame.

[0016] The beneficial effects of this invention are:

[0017] First, this invention uses the rotation of positioning bolts to drive the displacement slider to move, so that the welding positioning chuck and the separator can restrict and position the copper wire to be welded. At the same time, by placing the top of the welding positioning chuck at the root of the copper wire to be welded, the remaining welding allowance of the copper wire to be welded can be increased. Furthermore, by setting the extension cavity and the actuating rod, the entire support base can be restricted to the top of the flat wire stator, so that the entire support base can be sleeved on the support plate for welding the copper wire to be welded, thus completing the welding of shorter pin wires.

[0018] Second, the present invention allows the guide collar to slide on the second vertical frame, facilitating the vertical docking of the support base with the flat wire stator. Simultaneously, the support extension arm can rotate inside the support ring, allowing the support base to rotate at a certain angle to contact the flat wire stator, thus improving the docking flexibility between the support base and the support plate. Furthermore, when the support base is not in use, the guide collar can contact the limiting key to position the support ring, allowing the support base to be suspended at the top, facilitating the installation of the flat wire stator into the placement slot, and completing the rapid docking and assembly of the support base. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0021] Figure 2 This is a schematic diagram illustrating the cooperation between the welding positioning chuck and the separator plate in this invention;

[0022] Figure 3 This is a schematic diagram illustrating the cooperation between the welding positioning chuck and the separator plate in this invention;

[0023] Figure 4 This is a schematic diagram of the main body disassembly structure in this invention;

[0024] Figure 5 This is a frontal perspective three-dimensional structural diagram of the second embodiment of the supporting base frame in this invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the support device from the front view in this invention;

[0026] Figure 7 This is a partial cross-sectional schematic diagram of the positioning device in this invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the control device from the front view in this invention.

[0028] In the diagram: 1-Welding positioning chuck, 2-Copper wire to be welded, 3-Supporting plate, 4-Flat wire stator, 5-Displacement slider, 6-Positioning bolt, 7-Separator plate, 8-Guide column, 9-Actuating rod, 10-Extension cavity, 11-Supporting base frame, 12-Supporting device, 13-Positioning device, 14-Control device, 15-Connecting back plate, 16-Guide collar, 17-Supporting ring, 18-Guide roller, 19-Supporting extension arm, 20-Connecting base rod, 21-Modular groove, 22-Supporting cavity, 23-Partition plate, 24-Reset spring, 25-Displacement sliding plate, 26-Limiting key, 27-Modular guide rod, 28-Positioning shaft, 29-Extension end plate, 30-First vertical frame, 31-Supporting base, 32-Plastic gasket, 33-Second vertical frame, 34-Synchronous base frame, 35-Displacement sliding sleeve, 36-Placement groove. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] The invention will be further described below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a clamping fixture for reducing the height of the welding end of a flat wire stator according to the present invention includes a support base 11. An extension cavity 10 is symmetrically fixedly installed at the bottom of the support base 11. A toggle rod 9 is slidably inserted into the interior of the extension cavity 10. Guide columns 8 are symmetrically fixedly installed at the bottom end of the support base 11. A support plate 3 is fixedly installed at the top end of the support base 11. A welding positioning chuck 1 and a partition plate 7 are rotatably installed at the top end of the support plate 3, with the welding positioning chuck 1 located above the partition plate 7. Displacement sliders 5 are fixedly installed at the side ends of the welding positioning chuck 1 and the partition plate 7. Positioning bolts 6 are threaded into both ends of the support base 11. A flat wire stator 4 is slidably installed at the bottom end of the support plate 3. A copper wire 2 to be welded is fixedly installed at the top end of the flat wire stator 4.

[0033] The working principle of Example 1 is as follows: In use, the flat wire stator 4 is first placed and installed in the designated area until the copper wire 2 to be welded is vertically upward. Then, the support plate 3 is moved downward as a whole. Because the welding positioning chuck 1 and the separator plate 7 have wire holes inside, when the support plate 3 moves downward, the wire holes inside the welding positioning chuck 1 and the separator plate 7 can slide onto the outer ring of the copper wire 2 to be welded. Then, the displacement slider 5 connected to the separator plate 7 can be rotated, thereby driving the separator plate 7 to rotate. Because the separator plate 7 has an inclined groove inside, and the actuating rod 9 is located inside the inclined groove, the spring inside the extension cavity 10 constantly presses the actuating rod 9 inward, so that the actuating rod 9 can always be in a compressed state. Then, when the separator plate 7 rotates, the inclined side with the slope in the inclined groove can... Moving the lever 9 away from the extension cavity 10, the lever 9 is pressed by the spring inside the extension cavity 10 until it contacts the outer surface of the flat wire stator 4. This causes the wire hole inside the separator 7 to press one side of the copper wire 2 to be welded, while the lever 9 is fastened to the outer ring of the flat wire stator 4. Then, the displacement slider 5 installed on the side of the welding positioning chuck 1 is rotated, so that the wire hole in the welding positioning chuck 1 can move to contact the other side of the copper wire 2 to be welded, completing the work of restricting the copper wire 2 to be welded. Furthermore, by turning the positioning bolt 6 until it contacts the displacement slider 5, the phenomenon of the displacement slider 5 shifting again can be avoided. At the same time, by having the top of the welding positioning chuck 1 located at the root of the copper wire 2 to be welded, the remaining welding area of ​​the copper wire 2 to be welded can be expanded, improving the welding efficiency of the copper wire 2 to be welded.

[0034] Example 2

[0035] Based on Example 1, such as Figure 5As shown, a support device 12 is slidably sleeved on the outer ring of the support base 11, and an adjustment device 14 is slidably sleeved on both ends of the support device 12. A positioning device 13 is fixedly installed on the top of both ends of the adjustment device 14.

[0036] like Figure 6 The support device 12 includes a connecting back plate 15, a guide collar 16, a support ring 17, a guide roller 18, and a support extension arm 19. The support extension arm 19 is symmetrically and rotatably installed inside the support ring 17. The guide roller 18 is rotatably installed at the bottom of the support extension arm 19. The connecting back plate 15 is fixedly installed at both ends of the support ring 17. The guide collar 16 is symmetrically and fixedly installed on the side end of the connecting back plate 15 away from the support ring 17. The guide collar 16 is slidably sleeved on the outer ring of the second vertical frame 33, so that the support ring 17 can move vertically along a straight line, improving the docking accuracy between the support ring 17 and the flat wire stator 4.

[0037] like Figure 7 The positioning device 13 includes a connecting base rod 20, a movable groove 21, a support cavity 22, a partition plate 23, a return spring 24, a displacement slide plate 25, a limiting key 26, a movable guide rod 27, a positioning shaft 28, and an extension end plate 29. The connecting base rod 20 is symmetrically fixedly installed at the top of the support cavity 22. The movable groove 21 is symmetrically opened at the top of the support cavity 22, and the movable groove 21 is located inside the connecting base rod 20. The partition plate 23 is fixedly installed inside one end of the support cavity 22. The movable guide rod 27 is symmetrically slidably inserted into the support cavity 22. Inside the cavity 22, at the other end, the displacement slide plate 25 is fixedly installed on the end of the movable guide rod 27 near the partition plate 23. The return spring 24 is symmetrically fixedly installed between the partition plate 23 and the displacement slide plate 25. The limiting key 26 is fixedly installed on the end of the movable guide rod 27 away from the displacement slide plate 25. The extension end plate 29 is symmetrically fixedly installed on the top of the displacement slide plate 25. The positioning shaft 28 is rotatably installed on the top of both ends of the extension end plate 29. The elasticity of the return spring 24 can drive the limiting key 26 to reset when it is not under pressure.

[0038] like Figure 8 The control device 14 includes a first vertical frame 30, a support base 31, a plastic gasket 32, a second vertical frame 33, a synchronous base 34, a displacement sleeve 35, and a placement groove 36. The second vertical frame 33 is symmetrically fixedly installed on both sides of the support base 31, and the first vertical frame 30 is symmetrically fixedly installed at both ends of the support base 31. The displacement sleeve 35 is slidably sleeved on the outer ring of the first vertical frame 30. The synchronous base 34 is symmetrically rotated and installed on both sides of the displacement sleeve 35. The placement groove 36 is opened at the bottom of the support base 31. The plastic gasket 32 ​​is fixedly installed at the center of the bottom end of the placement groove 36. The two ends of the synchronous base 34 are respectively rotated and installed on the displacement sleeve 35 and the positioning shaft 28, so that the displacement sleeve 35 can drive the extension end plate 29 to move back to the original position when it moves up and down.

[0039] The connecting base rod 20 is fixedly installed on the top side of the second vertical frame 33. The end of the synchronous base frame 34 away from the displacement sliding sleeve 35 is rotatably installed on the positioning shaft rod 28. The extension end plate 29 is slidably inserted into the inside of the movable groove 21. The guide collar 16 is slidably sleeved on the outer ring of the second vertical frame 33. The support base frame 11 is fixedly installed between the two support extension arms 19. A rotating ring is fixedly installed at the top of the support extension arm 19. The inner ring of the support ring 17 has an arc groove, and the top of the arc groove has a positioning groove that matches the rotating ring. The limiting key 26 is on the back. The bottom of the side end of the movable guide rod 27 and the top of the side end of the guide collar 16 away from the support ring 17 are both inclined at 45°. The guide collar 16 has a square hole inside. The bottom end of the guide roller 18 contacts the bottom of the arc groove of the inner ring of the support ring 17. The support ring 17 and the placement groove 36 are on the same axis. The plastic gasket 32 ​​is vertically aligned with the support base 11. The four corners of the displacement sleeve 35 have sleeve holes that are compatible with the first vertical frame 30. The bottom end of the support extension arm 19 is fixedly installed with an extension wing plate, and the extension wing plate is connected to the support base 11.

[0040] In implementing this embodiment, the flat wire stator 4 can be placed inside the placement groove 36, and installed at the bottom of the placement groove 36 by the plastic gasket 32, so as to avoid the phenomenon of slippage at the bottom of the flat wire stator 4 when placed inside the placement groove 36. Then, the displacement sleeve 35 can be pressed down. When the displacement sleeve 35 moves downward, it can drive the synchronous base frame 34 to move to the side. The synchronous base frame 34 is rotated and sleeved on the positioning shaft 28, so that when the displacement sleeve 35 moves downward, the synchronous base frame 34 can squeeze the extension end plate 29 to move away from the limiting key 26. At this time, when the extension end plate 29 moves, it can drive the displacement slide plate 25 to move simultaneously, so that the movable guide rod 27 can drive the limiting key 26 to move, so that the limiting key 26 The top end can be moved out from the bottom end of the guide collar 16. At this time, the support ring 17 can move downward and slide onto the outer ring of the second vertical frame 33 through the guide collar 16, so that the support ring 17 can be supported to move downward in a straight line. Subsequently, when the wire hole inside the separator plate 7 is not aligned with the copper wire 2 to be welded, the support extension arm 19 is rotatably installed inside the support ring 17, so that the support base frame 11 can be rotated and adjusted. Moreover, the rotation ring at the top of the support extension arm 19 is in the positioning groove at the top of the arc groove inside the support ring 17, so that the support extension arm 19 can be supported to rotate along the inner ring of the support ring 17. At the same time, the rotation efficiency of the support extension arm 19 can be improved by the setting of the guide roller 18. Subsequently, when the wire hole inside the separator plate 7 rotates to be aligned with the copper wire 2 to be welded, the support extension arm 19 can be supported to rotate along the inner ring of the support ring 17. When aligning the copper wires 2, the support base 11 can continue to move downwards until the wire hole inside the separator 7 slides onto the outer ring of the copper wire 2 to be welded, completing the precise docking of the separator 7 and the copper wire 2. When the welding of the copper wire 2 is completed and the support base 11 is no longer needed, the support ring 17 can be pulled upwards as a whole until the welding positioning chuck 1 and the separator 7 are separated from the copper wire 2 to be welded. The top of the side end of the guide collar 16 and the bottom of the side end of the limiting key 26 are both inclined at 45°, which improves the smoothness of contact between the guide collar 16 and the limiting key 26. Subsequently, when the guide collar 16 moves upwards to contact the limiting key 26, it can squeeze the limiting key 26 to move closer to the partition 23. When the guide collar 16 has completely passed the limiting key 26, the elasticity of the return spring 24 will cause the limiting key 26 to reset, so that the top of the limiting key 26 can be located below the guide collar 16, supporting the support ring 17 to be suspended at the top, which facilitates the subsequent placement of the flat wire stator 4 into the placement slot 36. When the limiting key 26 is displaced, the extension end plate 29 moves inside the movable slot 21, so that the limiting key 26 can move in a straight line, completing the reset support work of the support ring 17. In use, the support ring 17 supports the extension arm 19 to rotate and adjust inside, so that the wire hole inside the welding positioning chuck 1 and the separator 7 can be rotated to align with the copper wire 2 to be welded. At the same time, when the displacement sleeve 35 is pressed,The synchronous base frame 34 can compress the extension end plate 29 to move closer to the partition plate 23, causing the limiting key 26 to misalign with the guide collar 16, releasing the guide collar 16, facilitating the downward sliding of the support ring 17. Furthermore, after releasing the support ring 17, the elasticity of the return spring 24 will cause the displacement slide plate 25 to quickly return to its original position, allowing the movable guide rod 27 to move the limiting key 26 back to its original position. This allows the limiting key 26 to fit against the surface of the second vertical frame 33, facilitating contact between the guide collar 16 and the limiting key 26 when the guide collar 16 moves upward. Simultaneously, the combination of the plastic gasket 32 ​​and the placement groove 36 facilitates the placement of the flat wire stator 4 inside the support chassis 31, improving the stability of the copper wire 2 during welding.

[0041] 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 clamping fixture for reducing the height of the welding end of a flat wire stator, comprising a support base (11), characterized in that: The bottom of the support base (11) is symmetrically fixedly equipped with an extension cavity (10), and a lever (9) is slidably inserted into the interior of the extension cavity (10). The bottom end of the support base (11) is symmetrically fixedly equipped with a guide column (8). The top end of the support base (11) is fixedly equipped with a support plate (3). The top end of the support plate (3) is rotatably equipped with a welding positioning chuck (1) and a partition plate (7), and the welding positioning chuck (1) is located above the partition plate (7). The side ends of the welding positioning chuck (1) and the partition plate (7) are fixedly equipped with displacement sliders (5). The two ends of the support base (11) are threaded with positioning bolts (6). The bottom end of the support plate (3) is slidably equipped with a flat wire stator (4). The top end of the flat wire stator (4) is fixedly equipped with a copper wire (2) to be welded. The top end of the welding positioning chuck is located at the root of the copper wire to be welded. The outer ring of the support base (11) is slidably sleeved with a support device (12), and the two ends of the support device (12) are slidably sleeved with an adjustment device (14). The top of the two ends of the adjustment device (14) is fixedly installed with a positioning device (13). The support device (12) includes a connecting back plate (15), a guide collar (16), a support ring (17), a guide roller (18), and a support extension arm (19). The support extension arm (19) is symmetrically and rotatably installed inside the support ring (17). The guide roller (18) is rotatably installed at the bottom of the support extension arm (19). The connecting back plate (15) is fixedly installed at both ends of the support ring (17). The guide collar (16) is symmetrically and fixedly installed on the side of the connecting back plate (15) away from the support ring (17). The positioning device (13) includes a connecting base rod (20), a movable groove (21), a supporting cavity (22), a partition plate (23), a return spring (24), a displacement slide plate (25), a limiting key (26), a movable guide rod (27), a positioning shaft rod (28), and an extension end plate (29). The connecting base rod (20) is symmetrically fixedly installed at the top of the supporting cavity (22). The movable groove (21) is symmetrically opened at the top of the supporting cavity (22), and the movable groove (21) is located inside the connecting base rod (20). The partition plate (23) is fixedly installed inside the supporting cavity (22). At one end of the part, the movable guide rod (27) is symmetrically slidably inserted into the interior of the support cavity (22). At the other end, the displacement slide plate (25) is fixedly installed at one end of the movable guide rod (27) near the partition plate (23). The reset spring (24) is symmetrically fixedly installed between the partition plate (23) and the displacement slide plate (25). The limiting key (26) is fixedly installed at one end of the movable guide rod (27) away from the displacement slide plate (25). The extension end plate (29) is symmetrically fixedly installed at the top of the displacement slide plate (25). The positioning shaft rod (28) is rotatably installed at the top of both ends of the extension end plate (29). The control device (14) includes a first vertical frame (30), a support base (31), a plastic gasket (32), a second vertical frame (33), a synchronous base frame (34), a displacement sleeve (35), and a placement groove (36). The second vertical frame (33) is symmetrically fixedly installed on both sides of the support base (31), and the first vertical frame (30) is symmetrically fixedly installed at both ends of the support base (31). The displacement sleeve (35) is slidably sleeved on the outer ring of the first vertical frame (30). The synchronous base frame (34) is symmetrically rotated and installed on both sides of the displacement sleeve (35). The placement groove (36) is opened at the bottom of the support base (31), and the plastic gasket (32) is fixedly installed at the center of the bottom end of the placement groove (36).

2. The clamping fixture for reducing the height of the welding end of a flat wire stator according to claim 1, characterized in that: The connecting base rod (20) is fixedly installed on the top of the side end of the second vertical frame (33), the end of the synchronous base frame (34) away from the displacement sleeve (35) is rotatably installed on the positioning shaft rod (28), and the extension end plate (29) is slidably inserted into the interior of the movable groove (21).

3. The clamping fixture for reducing the height of the welding end of a flat wire stator according to claim 2, characterized in that: The guide collar (16) is slidably sleeved on the outer ring of the second vertical frame (33), and the support base frame (11) is fixedly installed between the two support extension arms (19).

4. The clamping fixture for reducing the height of the welding end of a flat wire stator according to claim 3, characterized in that: The top of the support extension arm (19) is fixedly installed with a rotating ring, and the inner ring of the support ring (17) is provided with an arc groove. The top of the arc groove is provided with a positioning groove that matches the rotating ring. The bottom of the side end of the limiting key (26) away from the movable guide rod (27) and the top of the side end of the guide collar (16) away from the support ring (17) are both inclined at 45°.

5. A clamping fixture for reducing the height of the welding end of a flat wire stator according to claim 4, characterized in that: The guide collar (16) has a square hole inside. The bottom end of the guide roller (18) contacts the bottom of the arc groove of the inner ring of the support ring (17). The support ring (17) and the placement groove (36) are on the same axis. The plastic pad (32) is vertically aligned with the support base (11).

6. A clamping fixture for reducing the height of the welding end of a flat wire stator according to claim 5, characterized in that: The displacement sleeve (35) has sleeve holes at its four corners that are compatible with the first vertical frame (30). The bottom end of the support extension arm (19) is fixedly installed with an extension wing plate, and the extension wing plate is connected to the support base frame (11).

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