Stator welding equipment

Abstract

The invention discloses a stator welding device, which comprises a workbench, a multi-axis moving component, a positioning component and a welding component; the multi-axis moving component is arranged on the workbench; the positioning component is arranged on the workbench, and the positioning component is used to clamp a plurality of stacked stator punching sheets, and make the plurality of stator punching sheets coaxial; the welding component is arranged on the multi-axis moving component, and is used for the welding component to weld the plurality of stacked stator punching sheets. Compared with the manual welding method, the stator welding device of the invention has high welding efficiency, improves production efficiency, and accurately positions the plurality of stacked stator punching sheets, thereby preventing the plurality of stacked stator punching sheets from axially offsetting during welding, and ensuring the quality of the stator.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a stator welding device. Background Art

[0002] The disc-shaped split stator is formed by welding a plurality of stator punching sheets together after being axially attached. Generally, the plurality of stator punching sheets are welded together along the axial direction on the outer walls of the plurality of stator punching sheets to form a whole.

[0003] The existing disc-shaped split stator is generally welded by manual welding, which is inefficient and difficult to ensure the quality of the stator. Summary of the invention

[0004] The purpose of the present invention is to provide a stator welding device, aiming to solve the technical problems of low efficiency and difficulty in ensuring the quality of the stator by existing manual welding.

[0005] In order to solve the above problem, according to one aspect of the present application, an embodiment of the present invention provides a stator welding device, the stator welding device comprising:

[0006] Workbench;

[0007] A multi-axis moving component is arranged on the workbench;

[0008] A positioning assembly is arranged on the workbench and is used to clamp a plurality of stacked stator punching sheets and make the plurality of stator punching sheets coaxial;

[0009] The welding assembly is arranged on the multi-axis moving assembly and is used for welding a plurality of stacked stator punching sheets.

[0010] In some embodiments, the positioning assembly includes a first tubular member, a second tubular member, a first columnar member, and a first telescopic module, the second tubular member is disposed on the workbench, one end of the second tubular member away from the workbench is configured with a first chamfer, the first chamfer is inserted into one end of the first tubular member, the first columnar member has a second chamfer inserted into the other end of the first tubular member, the first telescopic module is connected to the workbench, and the first telescopic portion of the first telescopic module is connected to the first columnar member;

[0011] Among them, the first tubular member is provided with a plurality of first grooves axially penetrating to one axial end of the first tubular member and a plurality of second grooves axially penetrating to the other axial end of the first tubular member, the plurality of first grooves and the plurality of second grooves are alternately distributed in the circumferential direction of the first tubular member, and the first tubular member is penetrated into the inner holes of a plurality of stacked stator punching sheets.

[0012] In some embodiments, the mouths at both axial ends of the first tubular member are configured with third chamfers.

[0013] In some embodiments, the stator welding equipment also includes a driving assembly, and the driving assembly and the first telescopic module are both arranged on a side of the workbench away from the first tubular member, the first telescopic portion passes through the workbench and is connected to the first columnar member, a first gear is arranged on the driving shaft of the driving assembly, and a second gear meshing with the first gear is arranged on the first telescopic portion.

[0014] In some embodiments, the positioning assembly further includes a rotating shaft and two semicircular buckling parts, the rotating shaft is disposed on the workbench, one circumferential end of the two semicircular buckling parts are connected to the rotating shaft, and both can rotate around the rotating shaft, and the two semicircular buckling parts are coaxial with the first tubular member when buckled;

[0015] Wherein, the two semicircular buckling parts are both configured with a plurality of avoidance grooves extending along the axial direction.

[0016] In some embodiments, the positioning assembly also includes two vertical plates and two second telescopic modules, the two vertical plates are arranged on the workbench, the two second telescopic modules are respectively arranged on the two vertical plates, the second telescopic portion of any one of the two second telescopic modules is connected to any one of the two semicircular fasteners, and the second telescopic portion of the other one of the two second telescopic modules is connected to the other of the two semicircular fasteners.

[0017] In some embodiments, the multi-axis moving assembly includes a bracket, a third telescopic module and a first fixed plate, the bracket is arranged on the workbench, the third telescopic module is arranged on the bracket, the welding assembly is connected to the first fixed plate, the third telescopic part of the third telescopic module is connected to the first fixed plate, and the telescopic direction of the third telescopic part is parallel to the axial direction of the stator punching sheet.

[0018] In some embodiments, the multi-axis moving assembly includes a fourth telescopic module and a second fixed plate, the fourth telescopic module is arranged on the first fixed plate, the welding assembly is connected to the second fixed plate, the fourth telescopic portion of the fourth telescopic module is connected to the second fixed plate, and the telescopic direction of the fourth telescopic portion is parallel to the first radial direction of the stator punching plate; and / or,

[0019] The first fixing plate is slidably matched with the bracket.

[0020] In some embodiments, the multi-axis moving assembly includes a fifth telescopic module and a third fixed plate, the fifth telescopic module is arranged on the second fixed plate, the welding assembly is connected to the third fixed plate, the fifth telescopic portion of the fifth telescopic module is connected to the third fixed plate, and the telescopic direction of the fifth telescopic portion is parallel to the second radial direction of the stator punching sheet; and / or,

[0021] The second fixing plate is slidably matched with the first fixing plate.

[0022] In some embodiments, the first radial direction is perpendicular to the second radial direction; and / or,

[0023] The third fixing plate is slidably matched with the second fixing plate; and / or,

[0024] The welding assembly includes a welding head and a fourth fixing plate, the fourth fixing plate is rotatably connected to the third fixing plate, the fourth fixing plate is provided with an arc groove coaxial with the rotation axis of the third fixing plate, and a locking piece connected to the third fixing plate is penetrated in the arc groove.

[0025] Compared with the prior art, the stator welding equipment of the present invention has at least the following beneficial effects:

[0026] The embodiment of the present invention discloses a stator welding device, which includes a workbench, a multi-axis moving component, a positioning component and a welding component; the multi-axis moving component is arranged on the workbench; the positioning component is arranged on the workbench, and the positioning component is used to clamp a plurality of stacked stator punching sheets, and make the plurality of stator punching sheets coaxial; the welding component is arranged on the multi-axis moving component, and is used for the welding component to weld the plurality of stacked stator punching sheets, before welding, the plurality of stacked stator punching sheets are first clamped by the positioning component, and the plurality of stator punching sheets are made coaxial, and the position of the welding component is adjusted by the multi-axis moving component, so that the welding component Move to the position for welding multiple stator punchings, and then weld the outer walls of the multiple stacked stator punchings along the axial direction of the stator punchings through the welding assembly. During welding, the welding assembly is driven by the multi-axis moving assembly to complete the welding along the axial direction of the stator punchings. The welding of multiple circumferential positions of the stator punchings is also achieved by driving the welding assembly through the multi-axis moving assembly. Compared with the manual welding method, the stator welding equipment of the present invention has high welding efficiency and improved production efficiency. At the same time, it can accurately position the multiple stacked stator punchings, prevent axial displacement of the multiple stacked stator punchings during welding, and ensure the quality of the stator.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0029] Figure 1 A schematic structural diagram of a stator welding device provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 A cross-sectional view of a positioning assembly of a stator welding device provided by an embodiment of the present invention;

[0032] Figure 4 A schematic structural diagram of a semicircular fastening member of a stator welding device provided in an embodiment of the present invention;

[0033] Figure 5 A schematic structural diagram of a first tubular member of a stator welding device provided in an embodiment of the present invention;

[0034] Figure 6 A schematic structural diagram of a second tubular member of a stator welding device provided in an embodiment of the present invention;

[0035] Figure 7 A schematic structural diagram of a first columnar member of a stator welding device provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Workbench;

[0038] 21. first tubular member; 211. first groove; 212. second groove; 213. third chamfer; 22. second tubular member; 221. first chamfer; 23. first columnar member; 231. second chamfer; 24. first telescopic module; 241. first telescopic part; 242. second gear; 25. rotating shaft; 26. semicircular buckle; 261. avoidance groove; 27. vertical plate; 28. second telescopic module; 281. second telescopic part;

[0039] 31. driving assembly; 311. first gear;

[0040] 41. bracket; 42. third telescopic module; 43. first fixed plate; 44. fourth telescopic module; 45. second fixed plate; 46. fifth telescopic module; 47. third fixed plate;

[0041] 51. welding head; 52. fourth fixing plate; 521. arc groove;

[0042] 6. Stator punching. DETAILED DESCRIPTION

[0043] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0044] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Example 1

[0047] like Figure 1-7 As shown, an embodiment of the present invention provides a stator welding device, the stator welding device comprising:

[0048] Workbench 1;

[0049] A multi-axis moving component is arranged on the workbench 1;

[0050] A positioning assembly is disposed on the workbench 1 and is used to clamp a plurality of stacked stator punching sheets 6 and make the plurality of stator punching sheets 6 coaxial;

[0051] The welding assembly is arranged on the multi-axis moving assembly and is used for welding the plurality of stacked stator punching sheets 6 .

[0052] In this embodiment, the stator welding equipment includes a workbench 1, a multi-axis moving component, a positioning component and a welding component; the multi-axis moving component is arranged on the workbench 1; the positioning component is arranged on the workbench 1, and the positioning component is used to clamp a plurality of stacked stator punching sheets 6, and make the plurality of stator punching sheets 6 coaxial; the welding component is arranged on the multi-axis moving component, and is used for the welding component to weld the plurality of stacked stator punching sheets 6. Before welding, the plurality of stacked stator punching sheets 6 are first clamped by the positioning component, and the plurality of stator punching sheets 6 are made coaxial, and the position of the welding component is adjusted by the multi-axis moving component, so that the welding component is moved to the plurality of stacked stator punching sheets 6. The welding positions of the stator punching sheets 6 are determined, and then the outer walls of the multiple stacked stator punching sheets 6 are welded along the axial direction of the stator punching sheets 6 by the welding assembly. During welding, the welding assembly is driven by the multi-axis moving assembly along the axial direction of the stator punching sheets 6 to complete the welding. The welding of multiple circumferential positions of the stator punching sheets 6 is also achieved by driving the welding assembly by the multi-axis moving assembly. Compared with the manual welding method, the stator welding equipment of this embodiment has high welding efficiency and improved production efficiency. At the same time, the multiple stacked stator punching sheets 6 are accurately positioned to prevent axial displacement of the multiple stacked stator punching sheets 6 during welding, thereby ensuring the quality of the stator.

[0053] In some embodiments, the positioning assembly includes a first tubular member 21, a second tubular member 22, a first columnar member 23 and a first telescopic module 24, the second tubular member 22 is disposed on the workbench 1, one end of the second tubular member 22 away from the workbench 1 is configured with a first chamfer 221, the first chamfer 221 is inserted into one end of the first tubular member 21, the first columnar member 23 has a second chamfer 231 inserted into the other end of the first tubular member 21, the first telescopic module 24 is connected to the workbench 1, and the first telescopic portion 241 of the first telescopic module 24 is connected to the first columnar member 23;

[0054] Among them, the first tubular member 21 is provided with a plurality of first grooves 211 axially penetrating to one axial end of the first tubular member 21 and a plurality of second grooves 212 axially penetrating to the other axial end of the first tubular member 21. The plurality of first grooves 211 and the plurality of second grooves 212 are alternately distributed in the circumferential direction of the first tubular member 21, and the first tubular member 21 is penetrated into the inner holes of a plurality of stacked stator punching sheets 6.

[0055] In this embodiment, the first telescopic portion 241 of the first telescopic module 24 drives the first columnar member 23 toward the second tubular member 22, and the first chamfer 221 of the second tubular member 22 and the second chamfer 231 of the first columnar member 23 increase the width of the first slot 211 and the second slot 212 of the first tubular member 21, thereby increasing the outer diameter of the first tubular member 21, thereby fixing the stator punching sheet 6 on the first tubular member 21, and ensuring that the multiple stacked stator punching sheets 6 are coaxial, thereby achieving accurate positioning of the multiple stacked stator punching sheets 6, preventing axial displacement of the multiple stacked stator punching sheets 6 during welding, and ensuring the quality of the stator.

[0056] The first chamfer 221 and the second chamfer 231 have the same structure.

[0057] In some embodiments, the mouths of both axial ends of the first tubular member 21 are configured with third chamfers 213 .

[0058] In this embodiment, the third chamfers 213 are constructed at the mouths of the first tubular member 21 at both axial ends, respectively cooperating with the first chamfers 221 and the second chamfers 231, so that the outer diameter of the first tubular member 21 becomes larger, thereby fixing the stator punchings 6 on the first tubular member 21, and ensuring that the multiple stacked stator punchings 6 are coaxial, thereby achieving accurate positioning of the multiple stacked stator punchings 6, preventing axial displacement of the multiple stacked stator punchings 6 during welding, and ensuring the quality of the stator.

[0059] In some embodiments, the stator welding equipment also includes a driving component 31, and the driving component 31 and the first telescopic module 24 are both arranged on a side of the workbench 1 away from the first tubular member 21, the first telescopic portion 241 passes through the workbench 1 and is connected to the first columnar member 23, a first gear 311 is arranged on the driving shaft of the driving component 31, and a second gear 242 meshing with the first gear 311 is arranged on the first telescopic portion 241.

[0060] In this embodiment, the driving shaft of the driving assembly 31 drives the first gear 311, the second gear 242, and the second gear 242 of the first telescopic portion 241 in sequence, and then drives the first columnar member 23 to rotate, so that the second chamfer 231 of the first columnar member 23 and the third chamfer 213 of the first tubular member 21 can rotate relative to each other, which is convenient for pulling the first columnar member 23 into the first tubular member 21, so that the outer diameter of the first tubular member 21 becomes larger, thereby fixing the stator punching sheet 6 on the first tubular member 21, and being able to ensure that the multiple stacked stator punching sheets 6 are coaxial, thereby achieving accurate positioning of the multiple stacked stator punching sheets 6, preventing the multiple stacked stator punching sheets 6 from axial displacement during welding, and ensuring the quality of the stator.

[0061] In some embodiments, the positioning assembly further includes a rotating shaft 25 and two semicircular buckling members 26, wherein the rotating shaft 25 is disposed on the workbench 1, and one circumferential end of the two semicircular buckling members 26 is connected to the rotating shaft 25 and can rotate around the rotating shaft 25, and the two semicircular buckling members 26 are coaxial with the first tubular member 21 when buckled;

[0062] Wherein, the two semicircular buckling parts 26 are both configured with a plurality of avoidance grooves 261 extending along the axial direction.

[0063] In this embodiment, the multiple stacked stator punching sheets 6 can be clamped and disassembled by rotating the two semicircular snap-fitting parts 26 around the rotating shaft 25, which is convenient for the installation and disassembly of the stator punching sheets 6. At the same time, the two semicircular snap-fitting parts 26 can further position the multiple stacked stator punching sheets 6 to ensure that the multiple stacked stator punching sheets 6 are coaxial, thereby achieving accurate positioning of the multiple stacked stator punching sheets 6, preventing axial displacement of the multiple stacked stator punching sheets 6 during welding, and ensuring the quality of the stator.

[0064] By configuring a plurality of avoidance grooves 261 extending in the axial direction on both semicircular buckling parts 26 , the welding assembly extends into the avoidance grooves 261 to weld the plurality of stacked stator punching sheets 6 .

[0065] In some embodiments, the positioning assembly also includes two vertical plates 27 and two second telescopic modules 28, the two vertical plates 27 are arranged on the workbench 1, and the two second telescopic modules 28 are respectively arranged on the two vertical plates 27, and the second telescopic part 281 of any second telescopic module 28 of the two second telescopic modules 28 is connected to any semicircular fastening part 26 of the two semicircular fastening parts 26, and the second telescopic part 281 of the other second telescopic module 28 of the two second telescopic modules 28 is connected to the other semicircular fastening part 26 of the two semicircular fastening parts 26.

[0066] In this embodiment, by telescoping the second telescopic parts 281 of the two second telescopic modules 28, the two semicircular snap-fitting parts 26 can rotate around the rotating shaft 25 to clamp and disassemble the multiple stacked stator punchings 6, preventing the semicircular snap-fitting parts 26 from being loosely locked during clamping, ensuring the accurate positioning of the multiple stacked stator punchings 6 by the two semicircular snap-fitting parts 26, preventing the multiple stacked stator punchings 6 from axial displacement during welding, and ensuring the quality of the stator.

[0067] In some embodiments, the multi-axis moving assembly includes a bracket 41, a third telescopic module 42 and a first fixed plate 43, the bracket 41 is arranged on the workbench 1, the third telescopic module 42 is arranged on the bracket 41, the welding assembly is connected to the first fixed plate 43, the third telescopic part of the third telescopic module 42 is connected to the first fixed plate 43, and the telescopic direction of the third telescopic part is parallel to the axial direction of the stator punching sheet 6.

[0068] In this embodiment, the first fixing plate 43 is driven by the extension and retraction of the third extension portion of the third extension module 42 , thereby driving the welding assembly to move along the axial direction of the stator punching sheet 6 , thereby achieving welding of a plurality of stacked stator punching sheets 6 .

[0069] In some embodiments, the multi-axis moving assembly includes a fourth telescopic module 44 and a second fixed plate 45, the fourth telescopic module 44 is arranged on the first fixed plate 43, the welding assembly is connected to the second fixed plate 45, the fourth telescopic part of the fourth telescopic module 44 is connected to the second fixed plate 45, and the telescopic direction of the fourth telescopic part is parallel to the first radial direction of the stator punching sheet 6.

[0070] In this embodiment, the second fixed plate 45 is driven to move along the first radial direction of the stator punching sheet 6 by the fourth telescopic portion of the fourth telescopic module 44, thereby realizing multi-directional movement of the welding assembly, expanding the movement range of the welding assembly, and improving the use range of the stator welding equipment.

[0071] In some embodiments, the first fixing plate 43 and the bracket 41 are slidably matched to improve the stability of the movement of the multi-axis moving assembly, prevent the welding assembly from shaking, and improve the welding quality.

[0072] In some embodiments, the multi-axis moving assembly includes a fifth telescopic module 46 and a third fixed plate 47, the fifth telescopic module 46 is arranged on the second fixed plate 45, the welding assembly is connected to the third fixed plate 47, the fifth telescopic part of the fifth telescopic module 46 is connected to the third fixed plate 47, and the telescopic direction of the fifth telescopic part is parallel to the second radial direction of the stator punching sheet 6.

[0073] In this embodiment, the third fixed plate 47 is driven to move along the second radial direction of the stator punching sheet 6 by the fifth telescopic portion of the fifth telescopic module 46, thereby realizing multi-directional movement of the welding assembly, expanding the movement range of the welding assembly, and improving the use range of the stator welding equipment.

[0074] In some embodiments, the sliding cooperation between the second fixing plate 45 and the first fixing plate 43 can improve the stability of the movement of the multi-axis moving assembly, prevent the welding assembly from shaking, and improve the welding quality.

[0075] In some embodiments, the first radial direction is perpendicular to the second radial direction, so that the third telescopic module 42, the fourth telescopic module 44, and the fifth telescopic module 46 cooperate with each other to realize the up and down, front and back, left and right movement of the welding assembly, thereby expanding the movement range of the welding assembly and improving the use range of the stator welding equipment.

[0076] In some embodiments, the sliding cooperation between the third fixing plate 47 and the second fixing plate 45 can improve the stability of the movement of the multi-axis moving assembly, prevent the welding assembly from shaking, and improve the welding quality.

[0077] In some embodiments, the welding assembly includes a welding head 51 and a fourth fixed plate 52, wherein the fourth fixed plate 52 is rotatably connected to the third fixed plate 47, and the fourth fixed plate 52 is provided with an arc groove 521 coaxial with the rotation axis of the third fixed plate 47, and a locking member connected to the third fixed plate 47 is penetrated in the arc groove 521.

[0078] In this embodiment, the fourth fixing plate 52 is rotatably connected to the third fixing plate 47, and an arc groove 521 coaxial with the rotation axis of the third fixing plate 47 is provided on the fourth fixing plate 52, and a locking piece connected to the third fixing plate 47 is passed through the arc groove 521. The angle between the welding head 51 and the axis of the stator punching sheet 6 can be adjusted by loosening the locking piece and rotating the fourth fixing plate 52, so that the welding range of the welding assembly is expanded, thereby improving the application range of the stator welding equipment.

[0079] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0080] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A stator welding device, characterized in that: The stator welding equipment comprises: Workbench (1); A multi-axis moving component is arranged on the workbench (1); A positioning assembly is arranged on the workbench (1) and is used to clamp a plurality of stacked stator punching sheets (6) and make the plurality of stator punching sheets (6) coaxial; A welding assembly is arranged on the multi-axis moving assembly and is used for welding a plurality of stacked stator punching sheets (6).

2. The stator welding equipment according to claim 1, characterized in that: The positioning assembly comprises a first tubular member (21), a second tubular member (22), a first columnar member (23) and a first telescopic module (24); the second tubular member (22) is arranged on the workbench (1); an end of the second tubular member (22) away from the workbench (1) is configured with a first chamfer (221); the first chamfer (221) is inserted into one end of the first tubular member (21); the first columnar member (23) has a second chamfer (231) inserted into the other end of the first tubular member (21); the first telescopic module (24) is connected to the workbench (1); and a first telescopic portion (241) of the first telescopic module (24) is connected to the first columnar member (23); The first tubular member (21) is provided with a plurality of first grooves (211) axially extending to one axial end of the first tubular member (21) and a plurality of second grooves (212) axially extending to the other axial end of the first tubular member (21), the plurality of first grooves (211) and the plurality of second grooves (212) being alternately distributed in the circumferential direction of the first tubular member (21), and the first tubular member (21) is inserted into the inner holes of a plurality of stacked stator punching sheets (6).

3. The stator welding equipment according to claim 2, characterized in that: The mouths at both axial ends of the first tubular member (21) are both configured with third chamfers (213).

4. The stator welding equipment according to claim 2, characterized in that: The stator welding equipment further comprises a driving assembly (31); the driving assembly (31) and the first telescopic module (24) are both arranged on a side of the workbench (1) away from the first tubular member (21); a first gear (311) is arranged on a driving shaft of the driving assembly (31); and a second gear (242) meshing with the first gear (311) is arranged on the first telescopic portion (241).

5. The stator welding equipment according to claim 2, characterized in that: The positioning assembly further comprises a rotating shaft (25) and two semicircular buckling parts (26), wherein the rotating shaft (25) is arranged on the workbench (1), one circumferential end of the two semicircular buckling parts (26) is connected to the rotating shaft (25), and both are capable of rotating around the rotating shaft (25), and when the two semicircular buckling parts (26) are buckled, they are coaxial with the first tubular part (21); Wherein, the two semicircular buckling parts (26) are both configured with a plurality of avoidance grooves (261) extending along the axial direction.

6. The stator welding equipment according to claim 5, characterized in that: The positioning assembly further comprises two vertical plates (27) and two second telescopic modules (28); the two vertical plates (27) are arranged on the workbench (1); the two second telescopic modules (28) are respectively arranged on the two vertical plates (27); the second telescopic portion (281) of any second telescopic module (28) of the two second telescopic modules (28) is connected to any semicircular fastening member (26) of the two semicircular fastening members (26); the second telescopic portion (281) of the other second telescopic module (28) of the two second telescopic modules (28) is connected to the other semicircular fastening member (26) of the two semicircular fastening members (26).

7. The stator welding equipment according to claim 1, characterized in that: The multi-axis moving assembly comprises a bracket (41), a third telescopic module (42) and a first fixed plate (43); the bracket (41) is arranged on the workbench (1); the third telescopic module (42) is arranged on the bracket (41); the welding assembly is connected to the first fixed plate (43); the third telescopic part of the third telescopic module (42) is connected to the first fixed plate (43); and the telescopic direction of the third telescopic part is parallel to the axial direction of the stator punching sheet (6).

8. The stator welding equipment according to claim 7, characterized in that: The multi-axis moving assembly comprises a fourth telescopic module (44) and a second fixed plate (45), the fourth telescopic module (44) is arranged on the first fixed plate (43), the welding assembly is connected to the second fixed plate (45), a fourth telescopic portion of the fourth telescopic module (44) is connected to the second fixed plate (45), and a telescopic direction of the fourth telescopic portion is parallel to a first radial direction of the stator punching sheet (6); and / or, The first fixing plate (43) is slidably matched with the bracket (41).

9. The stator welding equipment according to claim 8, characterized in that: The multi-axis moving assembly comprises a fifth telescopic module (46) and a third fixed plate (47), the fifth telescopic module (46) is arranged on the second fixed plate (45), the welding assembly is connected to the third fixed plate (47), a fifth telescopic portion of the fifth telescopic module (46) is connected to the third fixed plate (47), and a telescopic direction of the fifth telescopic portion is parallel to a second radial direction of the stator punching sheet (6); and / or, The second fixing plate (45) is slidably matched with the first fixing plate (43).

10. The stator welding equipment according to claim 9, characterized in that: The first radial direction is perpendicular to the second radial direction; and / or, The third fixing plate (47) is slidably matched with the second fixing plate (45); and / or, The welding assembly comprises a welding head (51) and a fourth fixing plate (52), wherein the fourth fixing plate (52) is rotatably connected to the third fixing plate (47), and the fourth fixing plate (52) is provided with an arc groove (521) coaxial with the rotation axis of the third fixing plate (47), and a locking member connected to the third fixing plate (47) is penetrated in the arc groove (521).

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