Stator welding tool

Abstract

The utility model discloses a stator welding tool which comprises the components of a terminal positioning assembly which comprises a positioning plate, a stator busbar carrier plate and a fixed pressing sheet; the positioning plate is provided with a first positioning part which is positioned with a stator product, the stator busbar carrying plate is connected to the positioning plate, the stator busbar carrying plate is provided with a plurality of first connecting holes, the fixed pressing sheet detachably abuts against the stator busbar carrying plate, the bottom of the fixed pressing sheet extends downwards to be provided with a plurality of first positioning pins, and the first positioning pins are connected with the stator busbar carrying plate. The first connecting rods extend downwards into the corresponding first connecting holes; and the adjusting assembly comprises a base and a plurality of clamping pieces arranged on the base, the base is provided with a second positioning part which is positioned with the stator product and / or the positioning plate, and each clamping piece comprises a pushing part and an acting part which drives the pushing part to radially displace. The stator busbar welding tool can effectively solve the problem of circumferential dislocation, ensures radial closing and attaching, facilitates subsequent welding, is better in welding quality, and corrects and shapes a plurality of outer ends and an overall structure of a stator busbar.

Description

Technical Field

[0001] The utility model relates to the field of stator welding tool technology, in particular to a stator welding tool, which is mainly used for welding the end of a stator flat copper wire and a stator busbar. Background Art

[0002] When welding the ends of the stator's flat copper wires to the stator busbar, first place the stator busbar (also known as BUSBAR) on top of the stator product, and make the multiple welding parts of the stator busbar correspond to the ends of the stator's flat copper wires before welding them.

[0003] CN 110695579 A discloses a welding fixture structure for connecting a motor armature with a BUSBAR, comprising an arc-shaped connecting base and a locking plate. The connecting base is detachably provided with a first fastener extending from its outer side wall to the outside of its inner side wall for connecting the connecting base to the motor armature. A support platform is provided on the top surface of the connecting base. A positioning pin corresponding to a positioning hole on the BUSBAR is detachably provided on the support platform. The locking plate is detachably connected to the connecting base via a second fastener. A pressure plate gap of the locking plate is provided on the support platform, and a group of through holes corresponding to the positioning pins and a through hole for each pair of flat copper wires to be welded of the motor armature and the BUSBAR are formed on the support platform. During use, the following steps are included: S1. Manually place the connection base on top of the motor armature, align the first fastener with the vertical slot on the motor armature through the notch, and rotate the first fastener so that its front end fits into the vertical slot and rests against the bottom of the slot, thereby securing the connection base to the motor armature. S2. Insert two locating pins into the two pin holes on the support platform, place the BUSBAR on the support platform, and insert the locating pins on the support platform into the two locating holes of the BUSBAR to initially position the BUSBAR. S3, insert the insert of the locking plate into the right area of ​​the arc-shaped hole on the connecting base, and insert each pair of flat copper wires of the motor armature and BUSBAR into a through hole, then rotate the locking plate counterclockwise. The rotation of the locking plate can drive the BUSBAR to move slightly relative to the positioning pin, thereby moving the flat copper wire of the BUSBAR toward the flat copper wire of the motor armature. When the connecting hole on the insert is coaxial with the second fastener, rotate the two second fasteners to fix the locking plate to the connecting base. At this time, the motor armature and each pair of flat copper wires of the BUSBAR are in contact.

[0004] The above technical solution is applicable to motor armatures and BUSBAR flat copper wires arranged circumferentially, and the bonding direction is circumferential, making it unsuitable for situations requiring radial bonding. Furthermore, while this technical solution achieves circumferential bonding, if the motor armature and BUSBAR flat copper wires are radially misaligned (i.e., not aligned), simply inserting each pair of flat copper wires into a single through-hole will not resolve the misalignment. Misalignment between pairs of flat copper wires reduces the bonding area and weakens the weld stability. Furthermore, in the above technical solution, the three outer ends of the BUSBAR are suspended. If any deformation occurs, correction after welding the motor armature and BUSBAR flat copper wires can be performed, which can negatively impact the weld.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a stator welding tool, which effectively solves the problem of circumferential misalignment, and at the same time enables the welding part of the stator bus and the end of the stator flat copper wire to be radially close and fit together, which is convenient for subsequent welding and has better welding quality. In addition, the multiple outer ends and the overall structure of the stator bus are corrected and shaped, which is conducive to improving the quality of the stator product.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A stator welding tool, comprising:

[0009] A terminal positioning assembly; the terminal positioning assembly includes a positioning plate, a stator busbar carrier plate, and a fixed pressing piece; the positioning plate is provided with a first positioning portion that is positioned relative to the stator product, the stator busbar carrier plate is connected to the positioning plate, the stator busbar carrier plate is provided with a plurality of first connection holes, the fixed pressing piece is detachably pressed against the stator busbar carrier plate, and a plurality of first positioning pins are provided on the bottom of the fixed pressing piece to extend downwardly into the corresponding first connection holes;

[0010] Adjustment assembly; the adjustment assembly includes a base and several clamping parts arranged on the base, the base is provided with a second positioning part that is positioned with the stator product and / or the positioning plate, and the clamping part includes a push part and an action part that drives the radial displacement of the push part.

[0011] As a preferred solution, a magnet is provided on the fixed pressing plate, and the magnet attracts the stator busbar carrier plate, so that multiple outer ends of the stator busbar are pressed between the fixed pressing plate and the stator busbar carrier plate.

[0012] As a preferred solution, one end of the stator busbar carrier is hinged to one end of the positioning plate, and the stator busbar carrier can rotate around the Z axis relative to the hinge. The other end of the stator busbar carrier is provided with a hook, and the other end of the positioning plate is provided with an elastic fastener, and the elastic fastener forms an unlockable lock on the hook.

[0013] As a preferred solution, the base is provided with an avoidance groove for the end of the flat copper wire of the stator to be exposed upward, and the clamping members are respectively arranged on the inner and outer sides of the avoidance groove, the pushing portion of the inner clamping member is set to push radially outward, and the pushing portion of the outer clamping member is set to push radially inward.

[0014] As a preferred solution, the push portions of the inner and outer clamping members of a portion are arranged radially opposite to each other, and the push portions of the inner and outer clamping members of another portion are arranged circumferentially staggered with each other.

[0015] As a preferred solution, the end of the pushing portion has a clamping groove open toward the pushing direction, the pushing portion has a left clamping arm and a right clamping arm located on the left and right sides of the clamping groove, and the bottom end of the clamping groove has a pushing surface.

[0016] As a preferred solution, a limit block and a guide block are provided on the base, a limit hole is provided in the limit block and radially passes through both ends of the limit block, and a guide hole is provided in the guide block and radially passes through both ends of the guide block, and the limit hole block and the guide hole are radially opposite to each other;

[0017] The clamping member includes a screw, a sliding block and a push piece, the rod portion of the screw is provided with an external thread and a limiting boss, the nut of the screw serves as the acting part, the rod portion passes through the limiting hole, the limiting block is limited between the nut portion of the screw and the limiting boss, the nut portion is exposed to the outside of the limiting block, the external thread is provided on the side of the limiting boss away from the nut, one radial end of the sliding block is provided with an internal thread, one radial end of the push piece is connected to the other radial end of the sliding block, and the pushing portion is provided at the other radial end of the push piece, the external thread of the rod portion and the internal thread of the sliding block form a threaded connection, so that: when the nut is rotated, the sliding block is displaced radially, and the push piece is displaced radially along with it.

[0018] As a preferred solution, the first positioning portion includes a plurality of second positioning pins downwardly arranged at the bottom of the positioning plate and adapted to extend into positioning holes of the stator product.

[0019] As a preferred solution, the second positioning portion includes a plurality of second positioning pins downwardly arranged at the bottom of the base. Accordingly, the positioning plate is provided with reserved holes, and the second positioning pins extend downwardly into the reserved holes of the positioning plate to form positioning.

[0020] As a preferred solution, guide bevels and shaping straight surfaces are provided on the inner sides of the left clamping arm and the right clamping arm, and the guide bevels extend obliquely toward the middle of the clamping groove along the depth direction of the clamping groove, so that a gradually smaller guide correction opening is formed between the guide bevels of the left clamping arm and the right clamping arm, and the shaping straight surface is connected to the inner end of the guide bevel, and a shaping opening is formed between the shaping straight surfaces of the left clamping arm and the right clamping arm.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly achieved through the arrangement of a terminal positioning assembly and an adjustment assembly. The terminal positioning assembly includes a positioning plate, a stator bus carrier plate and a fixed pressure piece. The terminal positioning assembly can position the stator bus. The adjustment assembly includes a base and a plurality of clamping members arranged on the base. The adjustment action part drives the radial displacement of the push part to adjust and correct the welding part of the stator bus and the end of the flat copper wire of the stator, solve the problem of circumferential misalignment, and at the same time make them radially close to each other for easy subsequent welding, so that the welding quality of the welding part of the stator bus and the end of the flat copper wire of the stator is better, and the multiple outer ends and the overall structure of the stator bus are corrected and shaped, which is beneficial to improving the quality of the stator product.

[0022] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of a stator welding tool according to an embodiment of the present invention;

[0024] Figure 2 This is a perspective view of a terminal positioning assembly according to an embodiment of the present utility model;

[0025] Figure 3 This is a perspective view of the terminal positioning assembly according to an embodiment of the present invention from another angle;

[0026] Figure 4 It is a side view of the terminal positioning assembly of an embodiment of the present utility model;

[0027] Figure 5 This is an exploded view of a terminal positioning assembly according to an embodiment of the present utility model;

[0028] Figure 6is a partial cross-sectional view of a terminal positioning assembly according to an embodiment of the present invention (showing multiple outer ends of a stator busbar);

[0029] Figure 7 is a perspective view of an adjustment assembly according to an embodiment of the present invention;

[0030] Figure 8 is an exploded view of an adjustment assembly according to an embodiment of the present invention;

[0031] Figure 9 This is an exploded view of the stator product positioning fixture, terminal positioning assembly, and adjustment assembly of an embodiment of the present utility model;

[0032] Figure 10 This is a diagram illustrating the application status of the stator product positioning fixture, terminal positioning assembly, and adjustment assembly of an embodiment of the present utility model;

[0033] Figure 11 yes Figure 10 A partial enlarged view of point A in the middle.

[0034] Description of the accompanying symbols: terminal positioning assembly 100, positioning plate 101, stator busbar carrier 102, fixing pressure piece 103, hook 104, elastic fastener 105, pad 106, first connecting hole 107, first positioning pin 108, pin 1081, screw 1082, magnet 109, first positioning portion 1011, adjustment assembly 200, base 201, avoidance groove 2011, clamping member 202, second positioning portion 203, Clamping groove 204, left clamping arm 2041, right clamping arm 2042, push surface 2043, limit block 205, guide block 206, limit hole 2051, guide hole 2061, screw 2021, sliding block 2022, push piece 2023, stator product 300, end 301 of flat copper wire, outer end 400 of stator busbar, through hole 401, welding portion 400' of stator busbar, stator product positioning fixture 500. DETAILED DESCRIPTION

[0035] Please refer to Figures 1 to 11 As shown, it shows the specific structure of an embodiment of the present utility model.

[0036] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0037] A stator welding tool, used for welding the ends of a motor stator's flat copper wire to a stator busbar, comprises a terminal positioning assembly 100 and an adjustment assembly 200. The terminal positioning assembly 100, also referred to as the terminal tool, is mounted on a stator product 300 to secure the subsequently installed stator busbar (also referred to as a BUSBAR terminal). The adjustment assembly 200 adjusts and corrects the stator busbar and the ends of the stator's flat copper wire, preventing misalignment and ensuring a tighter fit for easier welding, thereby improving welding quality and yield.

[0038] Specifically:

[0039] The terminal positioning assembly 100 includes a positioning plate 101, a stator busbar carrier plate 102 and a fixing pressing piece 103;

[0040] The positioning plate 101 is provided with a first positioning portion for positioning with the stator product. The first positioning portion can be integrally connected to the positioning plate 101, or can be an additional assembly accessory as the first positioning portion 1011. For example, a pin structure (defined as a second positioning pin, which can adopt the same structure as the first positioning pin) is installed on the positioning plate 101. The positioning plate 101 is generally arc-shaped, such as a major arc. The stator busbar carrier plate 102 is connected to the positioning plate 101. One end of the stator busbar carrier plate 102 can be hinged to one arc-shaped end of the positioning plate 101. The stator busbar carrier plate 102 can rotate relative to the hinge (rotate around the Z axis). The other end of the stator busbar carrier plate 102 is provided with a hook portion 104. Correspondingly, an elastic fastener 105 is provided at the other arc-shaped end of the positioning plate 101. The elastic fastener 105 is used to lock the hook portion 104.

[0041] The bottom of the positioning plate 101 and the stator busbar carrier plate 102 are respectively connected with a plurality of pads 106 to facilitate abutment and positioning with the tops of the plurality of support columns of the tray. The pads 106 are detachable and their material and shape can be flexibly set;

[0042] The stator busbar carrier plate 102 is provided with a plurality of first connection holes 107, and the plurality of first connection holes 107 are arranged side by side at intervals, which are arranged corresponding to the outer ends 400 of the stator busbar. Usually, multiple outer ends of the stator busbar are reserved with through holes 401, and the bottom of the fixed pressing plate 103 is provided with a plurality of first positioning pins 108 extending downward, which are used to extend downward into the corresponding through holes and the first connection holes 107 to achieve positioning of multiple outer ends (for example, three) of the stator busbar. The first positioning pins 108 can be integrally connected to the fixed pressing plate 103, or can be additional assembled accessories as the first positioning pins 108. In comparison, the method of additionally assembling accessories makes the structure of the fixed pressing plate 103 easier to process, and the accessories are optional and replaceable, which is more flexible. In this embodiment, the fixed pressing plate 103 The first positioning pin 108 on the pressing plate 103 is installed on the fixed pressing plate 103, and the first positioning pin 108 includes a pin 1081 and a screw 1082. The lower end of the pin is designed to be in the shape of a bullet head for easy insertion. The upper end of the pin has a step on the outside, and the upper end of the pin has an internal threaded hole on the inside. A plurality of second connecting holes are provided on the fixed pressing plate 103, and the plurality of second connecting holes are arranged side by side and are aligned with the plurality of first connecting holes 107 one by one. The upper end of the pin extends into the corresponding second connecting hole, and the step is against the bottom surface of the fixed pressing plate 103. The screw is threadedly connected to the internal threaded hole of the pin from top to bottom, and the cap of the screw is pressed against the top surface of the fixed pressing plate 103. At this point, the first positioning pin 108 is fixedly installed on the fixed pressing plate 103;

[0043] Furthermore, a magnet 109 is provided on the fixed pressing plate 103 (for example, a magnet is provided at the bottom of the fixed pressing plate 103 ), and the stator busbar carrier plate 102 is attracted by the magnet 109 , so that multiple outer ends of the stator busbar are pressed between the fixed pressing plate 103 and the stator busbar carrier plate 102 .

[0044] The adjustment assembly 200 includes a base 201 and a plurality of clamping members 202 disposed on the base 201; the base 201 can be a single component or assembled from multiple components;

[0045] The base 201 is provided with a second positioning portion 203 for positioning with the stator product and / or the positioning plate 101. The second positioning portion 203 may be integrally connected to the base 201, or may be an additional assembly component serving as the first positioning portion, for example, by installing a pin structure (defined as a third positioning pin, which may have the same structure as the first positioning pin 108) on the base 201. In this embodiment, the third positioning pin is inserted into a reserved hole in the positioning plate 101 to achieve positioning, effectively using the positioning plate 101 to position the base 201 relative to the stator product.

[0046] The clamping member 202 includes a push portion and an action portion that drives the push portion to move radially forward and backward. The base 201 is provided with a relief groove 2011 for the ends of the stator's flat copper wires to be exposed upward. The relief groove 2011 is generally C-shaped to accommodate the exposure of multiple ends of the stator's flat copper wires. The clamping members 202 are respectively arranged inside and outside the relief groove 2011. The push portion of the inner clamping member 202 is radially outward, while the push portion of the outer clamping member 202 is radially inward. In this embodiment, the pushing portions of the inner and outer clamping members 202 of a part are arranged radially opposite to each other, and the pushing portions of the inner and outer clamping members 202 of another part are circumferentially staggered with each other. In this way, different pushing requirements of the ends of the flat copper wires of the stator and the welding portions of the stator bus are met. In actual use, some need to be pushed outward, some need to be pushed inward, and some need to be pushed both inward and outward at the same time to ensure that the positions of the ends of the flat copper wires of the stator and the welding portions of the stator bus can be corrected and fitted to facilitate subsequent welding. The end of the push portion has a clamping groove 204 open in the push direction, and the push portion has a left clamping arm 2041 and a right clamping arm 2042 located on the left and right sides of the clamping groove 204, and the bottom end of the clamping groove 204 has a push surface 2043. Usually, the clamping groove 204 is set through the top and bottom, so that the clamping groove 204 is used to prevent misalignment correction and clamping; the inner sides of the left clamping arm 2041 and the right clamping arm 2042 are provided with a guide slope C1 and a shaping straight surface C2, and the guide The guide bevel extends obliquely along the depth direction of the clamping groove toward the middle of the groove, so that a gradually smaller guide correction opening D1 is formed between the guide bevels C1 of the left clamping arm 2041 and the right clamping arm 2042, and the shaping straight surface is connected to the inner end of the guide bevel, and a shaping opening D2 is formed between the shaping straight surfaces C2 of the left clamping arm and the right clamping arm; for the case where the pushing parts of the inner and outer clamping members 202 are radially opposite to each other, the two clamping grooves 204 of the inner and outer clamping members 202 are staggered up and down.

[0047] like Figure 8 As shown, the base 201 is provided with a limit block 205 and a guide block 206. The limit block 205 is provided with a limit hole 2051 that radially passes through both ends of the limit block 205, and the guide block 206 is provided with a guide hole 2061 that radially passes through both ends of the guide block 206. The limit hole 2051 and the guide hole 2061 are arranged radially opposite each other. The clamping member 202 includes a screw rod 2021, a sliding block 2022, and a push piece 2023. The rod portion of the screw rod 2021 is provided with an external thread 1 and a limit boss 2. The rod portion passes through the limit hole 2051. The limit block 205 is limited between the nut portion 3 of the screw rod 2021 and the limit boss 2. The nut portion 3 is exposed outside the limit block 205, and the external thread 1 is provided on the side of the limit boss 2 away from the nut 3. The sliding block 2022 is provided with an internal thread 4 at one radial end. The push piece 2023 is generally Y-shaped. One radial end of the push piece 2023 is connected (e.g., detachably connected) to the other radial end of the sliding block 2022. More than one push piece 2023 can be connected to the same sliding block 2022. The external thread 1 of the rod and the internal thread 4 of the sliding block 2022 form a threaded connection, so that when the nut 3 (the nut has a hexagonal inner hole for inserting a tool for rotation) is rotated, because the screw rod 2021 cannot move radially, the external thread of the rod acts on the internal thread 4 of the sliding block 2022, causing the sliding block 2022 to move radially, and the push piece 2023 to move radially along with it. It can be seen that in this embodiment, the nut 3 of the screw rod 2021 serves as the active portion, and the push portion is provided at the other radial end of the push piece 2023.

[0048] Next, the use process of the stator welding tool of this embodiment is introduced:

[0049] The stator product is placed on a pallet (designated as a stator positioning fixture 500) and transported along the production line. Once in place, a lifting device (such as a lifting cylinder) lifts the pallet and the stator product into place.

[0050] In this state,

[0051] First, manually insert the terminal positioning assembly 100 (including the positioning plate 101, the stator busbar carrier plate 102, and the fixed pressure plate 103) into the top of the stator product. The positioning plate 101 and the stator product are positioned, and the stator busbar carrier plate 102 is located on the periphery of the area where the ends 301 of the flat copper wires of the stator product are located.

[0052] Then, the stator busbar is manually placed on the stator product so that the welding portion 400' of the stator busbar is aligned with the end portion 301 of the rectangular copper wire of the stator product 300. Furthermore, the outer ends of the stator busbar are positioned on the stator busbar carrier plate 102, and the through holes are aligned with the corresponding first connection holes 107.

[0053] Then, the fixing pressing plate 103 is assembled on top of the multiple outer ends of the stator busbar. The multiple first positioning pins 108 extend downward into the corresponding through holes 401 and the first connecting holes 107 to achieve the positioning of the multiple outer ends of the stator busbar. In addition, the magnets 109 on the fixing pressing plate 103 attract the stator busbar carrier plate 102, so that the multiple outer ends of the stator busbar are pressed between the fixing pressing plate 103 and the stator busbar carrier plate 102.

[0054] Then, the adjustment assembly 200 is manually placed on top of the stator product. The second positioning portion 203 of the base 201 is positioned in the reserved hole on the positioning plate 101. The plurality of clamping pieces 202 correspond to the welding portion of the stator busbar and the end of the stator's flat copper wire one by one.

[0055] Finally, the action part is manually adjusted to drive the push part to move radially, so as to adjust and correct the welding part of the stator busbar and the end of the stator flat copper wire, solve the circumferential misalignment problem, and make them close together in the radial direction;

[0056] This state facilitates subsequent welding, so that the welding quality of the stator busbar welding parts and the ends of the stator flat copper wires is better, and the multiple outer ends and the overall structure of the stator busbar are corrected and shaped, which is beneficial to improving the quality of the stator product.

[0057] The design focus of the present invention is that it is mainly through the arrangement of a terminal positioning component 100 and an adjustment component 200. The terminal positioning component 100 includes a positioning plate 101, a stator busbar carrier plate 102 and a fixed pressure piece 103. The terminal positioning component 100 can position the stator busbar. The adjustment component 200 includes a base 201 and a plurality of clamping members 202 arranged on the base 201. The adjustment action part drives the radial displacement of the pushing part to adjust and correct the welding part of the stator busbar and the end of the stator flat copper wire, solve the circumferential misalignment problem, and at the same time make them radially close and fit together, which is convenient for subsequent welding, so that the welding quality of the stator busbar welding part and the end of the stator flat copper wire is better, and the multiple outer ends and the overall structure of the stator busbar are corrected and shaped, which is beneficial to improving the quality of the stator product.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stator welding tool, characterized in that: Includes: A terminal positioning assembly; the terminal positioning assembly includes a positioning plate, a stator busbar carrier plate, and a fixed pressing piece; the positioning plate is provided with a first positioning portion that is positioned relative to the stator product, the stator busbar carrier plate is connected to the positioning plate, the stator busbar carrier plate is provided with a plurality of first connection holes, the fixed pressing piece is detachably pressed against the stator busbar carrier plate, and a plurality of first positioning pins are provided on the bottom of the fixed pressing piece to extend downwardly into the corresponding first connection holes; Adjust components; The adjustment assembly includes a base and several clamping members arranged on the base, the base is provided with a second positioning portion that is positioned with the stator product and / or the positioning plate, and the clamping member includes a push portion and an action portion that drives the push portion to radially displace.

2. The stator welding tool according to claim 1, characterized in that A magnet is provided on the fixed pressing plate, and the magnet attracts the stator busbar carrier plate so that multiple outer ends of the stator busbar are pressed between the fixed pressing plate and the stator busbar carrier plate.

3. The stator welding tool according to claim 1, characterized in that One end of the stator busbar carrier is hinged to one end of the positioning plate, and the stator busbar carrier can rotate around the Z axis relative to the hinge. The other end of the stator busbar carrier is provided with a hook, and the other end of the positioning plate is provided with an elastic fastener, and the elastic fastener forms an unlockable lock on the hook.

4. The stator welding tool according to claim 1, characterized in that The base is provided with an avoidance groove for the end of the stator's flat copper wire to be exposed upward, and the clamping parts are respectively arranged on the inside and outside of the avoidance groove. The pushing part of the inner clamping part is set to push radially outward, while the pushing part of the outer clamping part is set to push radially inward.

5. The stator welding tool according to claim 4, characterized in that The pushing portions of the inner and outer clamping members of one part are arranged radially opposite to each other, and the pushing portions of the inner and outer clamping members of another part are arranged circumferentially staggered with each other.

6. The stator welding tool according to claim 1, 4 or 5, characterized in that The end of the pushing portion has a clamping groove open toward the pushing direction, the pushing portion has a left clamping arm and a right clamping arm located on the left and right sides of the clamping groove, and the bottom end of the clamping groove has a pushing surface.

7. The stator welding tool according to claim 6, characterized in that A limit block and a guide block are provided on the base, a limit hole is provided in the limit block and radially passes through both ends of the limit block, and a guide hole is provided in the guide block and radially passes through both ends of the guide block, and the limit hole block and the guide hole are radially opposite to each other; The clamping member includes a screw, a sliding block and a push piece, the rod portion of the screw is provided with an external thread and a limiting boss, the nut of the screw serves as the acting part, the rod portion passes through the limiting hole, the limiting block is limited between the nut portion of the screw and the limiting boss, the nut portion is exposed to the outside of the limiting block, the external thread is provided on the side of the limiting boss away from the nut, one radial end of the sliding block is provided with an internal thread, one radial end of the push piece is connected to the other radial end of the sliding block, and the pushing portion is provided at the other radial end of the push piece, the external thread of the rod portion and the internal thread of the sliding block form a threaded connection, so that: when the nut is rotated, the sliding block is displaced radially, and the push piece is displaced radially along with it.

8. The stator welding tool according to claim 1, characterized in that The first positioning portion includes a plurality of second positioning pins arranged downward at the bottom of the positioning plate and used to extend into the positioning holes of the stator product.

9. The stator welding tool according to claim 1, characterized in that The second positioning portion includes a plurality of second positioning pins arranged downwardly at the bottom of the base. Accordingly, the positioning plate has reserved holes, and the second positioning pins extend downward into the reserved holes of the positioning plate to form positioning.

10. The stator welding tool according to claim 6, characterized in that , guide inclined surfaces and shaping straight surfaces are set on the inner sides of the left clamping arm and the right clamping arm, and the guide inclined surfaces extend obliquely toward the middle of the groove along the depth direction of the clamping groove, so that a gradually smaller guide correction opening is formed between the guide inclined surfaces of the left clamping arm and the right clamping arm, and the shaping straight surface is connected to the inner end of the guide inclined surface, and a shaping opening is formed between the shaping straight surfaces of the left clamping arm and the right clamping arm.

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