Stator assembling jig

Abstract

The utility model relates to the technical field of motors, and particularly discloses a stator assembling jig which comprises a bottom plate, a positioning lower die is fixedly installed on the upper end face of the bottom plate, a fixing groove used for installing an end cover assembly is formed in the upper end face of the positioning lower die, an L-shaped adjusting support is arranged on one side of the positioning lower die, the L-shaped adjusting support comprises a vertical plate and a transverse plate, the transverse plate is slidably installed on the upper end face of the bottom plate, the vertical plate is arranged at the end, close to the positioning lower die, of the transverse plate, a backrest is slidably arranged on the side, close to the positioning lower die, of the vertical plate, and an arc-shaped clamping groove used for limiting the position of the stator assembly is formed in the side wall of the backrest. According to the stator assembling jig, positioning lower dies and backrests of different specifications can be replaced, compatibility of sizes of multi-specification end cover assemblies and stator assemblies is achieved, by changing the positions of the backrests and adjusting the concentricity of the end cover assemblies and the stator assemblies, the press-fitting perpendicularity is ensured, stator assembly shaft offset damage during press-fitting is avoided, and the press-fitting efficiency is improved. And the assembly precision and the product reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a stator assembly jig. Background Technique

[0002] The pendulum wheel motor is a precision drive device with a pendulum wheel type rotor structure, which has the characteristics of high efficiency and low vibration. It is widely used in the fields of automation equipment and precision instruments. The assembly of its stator assembly needs to press-fit the stator assembly and the end cover through a high-precision positioning jig. However, in the process of assembling the stator assembly of the existing pendulum wheel motor products, due to the lack of an effective guiding structure for the stator assembly, the phenomenon of shaft offset of the stator assembly is likely to occur during press-fitting, resulting in bearing damage, leading to the attenuation of the motor life and abnormal noise during operation.

[0003] Therefore, there is an urgent need for a stator assembly jig that can be compatible with multiple specifications of end covers and stator sizes and has high assembly accuracy. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a stator assembly jig. By replacing positioning lower dies and backrests of different specifications, the compatibility of the sizes of multiple specifications of end cover assemblies and stator assemblies is realized. By changing the position of the backrest, the concentricity of the end cover assembly and the stator assembly is adjusted to ensure the verticality of press-fitting, avoid damage to the stator assembly shaft offset during press-fitting, improve the assembly accuracy and product reliability, ensure the yield rate, and solve the problems proposed in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] A stator assembly jig, comprising: a bottom plate, on the upper end surface of the bottom plate, a positioning lower die is fixedly installed. On the upper end surface of the positioning lower die, a fixed groove for installing an end cover assembly is opened, and an L-shaped adjusting bracket is arranged on one side of the positioning lower die. The L-shaped adjusting bracket includes a vertical plate and a horizontal plate. Among them, the horizontal plate is slidably installed on the upper end surface of the bottom plate, the vertical plate is arranged at one end of the horizontal plate close to the positioning lower die, a backrest is slidably arranged on the side of the vertical plate close to the positioning lower die, and an arc-shaped card slot for defining the position of the stator assembly is opened on the side wall of the backrest. The arc-shaped card slot and the fixed groove are on the same central axis, and a first locking bolt and a second locking bolt are respectively arranged on the side of the vertical plate away from the positioning lower die and the upper end surface of the horizontal plate. The first locking bolt and the second locking bolt respectively penetrate through the vertical plate and the horizontal plate and are threadedly installed inside the backrest and the bottom plate.

[0007] Preferably, the number of the positioning lower dies and the backrests are both several, and the fixed grooves on the upper end surfaces of several positioning lower dies and the arc-shaped card slots on the side walls of several backrests are respectively adapted to the models of the end cover assemblies and the stator assemblies.

[0008] Preferably, universal positioning posts are arranged inside the lower positioning die. An empty slot for receiving the shaft of the stator assembly is provided at the central position of the universal positioning post. The empty slot and the arc-shaped card slot are on the same central axis.

[0009] Preferably, two third threaded holes are symmetrically distributed on the side wall of the backrest close to the vertical plate. Vertical through slots are provided at the positions on the side wall of the L-shaped adjusting bracket corresponding to the third threaded holes. The first locking bolt passes through the vertical through slot and is threadedly installed inside the third threaded hole, and the first locking bolt can slide inside the vertical through slot.

[0010] Preferably, two first threaded holes are symmetrically distributed on one side of the upper end of the bottom plate and located at the position of the lower positioning die. Horizontal through slots are provided at the positions on the end face of the cross plate corresponding to the first threaded holes. The second locking bolt passes through the horizontal through slot and is threadedly installed inside the first threaded hole, and the second locking bolt can slide inside the horizontal through slot.

[0011] Preferably, a positioning slot is provided at the bottom of the lower positioning die. A positioning convex shaft is provided on the upper end face of the bottom plate. The positioning convex shaft is inserted into the positioning slot to limit the position of the lower positioning die.

[0012] Preferably, a second threaded hole is provided at the bottom of the positioning convex shaft. A fixing bolt is provided at the position corresponding to the second threaded hole below the bottom plate. The fixing bolt passes through the bottom plate and is threadedly installed inside the second threaded hole.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] By providing the lower positioning die and the backrest, the lower positioning die and the backrest are replaced according to the sizes of the end cover assembly and the stator assembly. The end cover assembly and the stator assembly are respectively installed in the fixed groove on the upper end face of the lower positioning die and the arc-shaped card slot on the side wall of the backrest, so as to realize the compatibility of the sizes of multiple specifications of end cover assemblies and stator assemblies.

[0015] By providing the L-shaped adjusting bracket, the L-shaped adjusting bracket is moved on the bottom plate according to the change of the size of the stator assembly, so as to change the positions of the backrest and the stator assembly installed in the arc-shaped card slot on the inner side of the backrest, adjust the concentricity of the end cover assembly and the stator assembly, ensure the verticality of press-fitting, avoid the offset damage of the shaft of the stator assembly during press-fitting, improve the assembly accuracy and product reliability, and ensure the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0017] Figure 1 A three-dimensional schematic diagram of a stator assembly jig according to an embodiment of the present utility model;

[0018] Figure 2 A disassembled schematic diagram of a backrest, an L-shaped adjustment bracket and a bottom plate according to an embodiment of the present utility model;

[0019] Figure 3 A bottom schematic diagram of a positioning convex shaft according to an embodiment of the present utility model;

[0020] Figure 4 A disassembled schematic diagram of a positioning convex shaft and a bottom plate according to an embodiment of the present utility model;

[0021] Figure 5 An installation schematic diagram of an end cover assembly and a stator assembly according to an embodiment of the present utility model;

[0022] Figure 6 A press-fitting schematic diagram of a stator assembly according to an embodiment of the present utility model.

[0023] In the figure: 1. Bottom plate; 101. First threaded hole; 11. Positioning convex shaft; 111. Second threaded hole; 12. Fixed bolt; 2. Positioning lower die; 201. Fixed groove; 202. Positioning slot; 21. Universal positioning post; 211. Empty groove; 3. L-shaped adjustment bracket; 31. Vertical plate; 311. Vertical through groove; 32. Horizontal plate; 321. Horizontal through groove; 33. First locking bolt; 34. Second locking bolt; 4. Backrest; 401. Arc-shaped card slot; 402. Third threaded hole. Detailed implementation manners

[0024] Combined with Figures 1 - 6 As shown in the figure, in this embodiment, a stator assembly jig includes: a bottom plate 1, a positioning lower die 2 is fixedly installed on the upper end surface of the bottom plate 1, and a fixed groove 201 for installing an end cover assembly is opened on the upper end surface of the positioning lower die 2; the end cover assembly is snap-fitted and installed in the fixed groove 201, and the positioning lower die 2 holds and limits the position of the end cover assembly to prevent the end cover assembly from shifting, thereby realizing the positioning of the end cover assembly.

[0025] In this embodiment, an L-shaped adjusting bracket 3 is arranged on one side of the positioning lower die 2. The L-shaped adjusting bracket 3 includes a vertical plate 31 and a horizontal plate 32. Among them, the horizontal plate 32 is slidably installed on the upper end surface of the bottom plate 1, and the vertical plate 31 is arranged at one end of the horizontal plate 32 close to the positioning lower die 2. A backrest 4 is slidably arranged on the side of the vertical plate 31 close to the positioning lower die 2. An arc-shaped clamping groove 401 for defining the position of the stator assembly is formed on the side wall of the backrest 4. The arc-shaped clamping groove 401 and the fixed groove 201 are on the same central axis; driving the L-shaped adjusting bracket 3 to displace on the upper end surface of the bottom plate 1 changes the position of the backrest 4 on the side wall of the vertical plate 31 and the stator assembly installed in the arc-shaped clamping groove 401 on the inner side of the backrest 4, adjusts the concentricity of the end cover assembly and the stator assembly, and ensures the pressing perpendicularity.

[0026] In this embodiment, the number of the positioning lower dies 2 and the backrests 4 are both several. The fixed grooves 201 on the upper end surfaces of several positioning lower dies 2 and the arc-shaped clamping grooves 401 on the side walls of several backrests 4 are respectively adapted to the models of the end cover assembly and the stator assembly; the positioning lower dies 2 and the backrests 4 are replaced according to the sizes of the end cover assembly and the stator assembly, and the end cover assembly and the stator assembly are respectively installed in the fixed grooves 201 on the upper end surfaces of the positioning lower dies 2 and the arc-shaped clamping grooves 401 on the side walls of the backrests 4 to realize the compatibility of the sizes of multi-specification end cover assemblies and stator assemblies.

[0027] In this embodiment, a universal positioning post 21 is arranged inside the positioning lower die 2. An empty groove 211 for receiving the shaft of the stator assembly is formed at the central position of the universal positioning post 21. The empty groove 211 and the arc-shaped clamping groove 401 are on the same central axis; when the stator assembly is pressed, the universal positioning post 21 receives the downwardly pressed shaft of the stator assembly in the empty groove 211, preventing the shaft of the stator assembly from interfering with the universal positioning post 21 and the positioning lower die 2, preventing damage to the shaft of the stator assembly, and realizing the protection of the shaft of the stator assembly.

[0028] In this embodiment, two third threaded holes 402 are symmetrically distributed on the side wall of the backrest 4 close to the vertical plate 31. At the position corresponding to the third threaded hole 402 on the side wall of the L-shaped adjusting bracket 3, a vertical through groove 311 is provided. The first locking bolt 33 passes through the vertical through groove 311 and is threadedly installed inside the third threaded hole 402, and the first locking bolt 33 can slide inside the vertical through groove 311. The backrest 4 on the side wall of the sliding vertical plate 31 drives the stator assembly installed in the arc-shaped card slot 401 on its side wall to move up and down, making the stator assembly shaft contact the end cover assembly, adjusting the contact position between the stator assembly shaft and the end cover assembly, ensuring the pressing accuracy of the stator assembly, and preventing the stator assembly shaft from being offset and damaged during pressing. Moreover, during the process of moving the backrest 4, the first locking bolt 33 slides in the vertical through groove 311 and will not interfere with the vertical plate 31, ensuring the movement of the backrest 4. After the position adjustment of the backrest 4 is completed, the first locking bolt 33 is installed in the third threaded hole 402, and the nut of the first locking bolt 33 is pressed against the side wall of the vertical plate 31 to increase the friction between the backrest 4 and the vertical plate 31, preventing the stator assembly from falling off due to the displacement of the backrest 4 during pressing and ensuring the progress of the pressing work.

[0029] In this embodiment, two first threaded holes 101 are symmetrically distributed on the upper end of the bottom plate 1 on one side of the positioning lower die 2. At the position corresponding to the first threaded hole 101 on the end face of the cross plate 32, a horizontal through groove 321 is provided. The second locking bolt 34 passes through the horizontal through groove 321 and is threadedly installed inside the first threaded hole 101, and the second locking bolt 34 can slide inside the horizontal through groove 321. By sliding the L-shaped adjusting bracket 3 on the upper end face of the bottom plate 1 through the cross plate 32, the position of the backrest 4 on the side wall of the vertical plate 31 and the stator assembly installed in the arc-shaped card slot 401 inside the backrest 4 is changed, and the concentricity is adjusted according to the contact position between the stator assembly shaft and the end cover assembly, improving the pressing accuracy.

[0030] In this embodiment, a positioning slot 202 is provided at the bottom of the positioning lower die 2, and a positioning convex shaft 11 is provided on the upper end face of the bottom plate 1. The positioning convex shaft 11 is inserted into the positioning slot 202 to limit the position of the positioning lower die 2; the positioning lower die 2 is installed by means of insertion, realizing the rapid disassembly and assembly of the positioning lower die 2 and facilitating the replacement of positioning lower dies 2 of different specifications.

[0031] In this embodiment, a second threaded hole 111 is formed at the bottom of the positioning convex shaft 11. A fixing bolt 12 is arranged at a position corresponding to the second threaded hole 111 below the bottom plate 1. The fixing bolt 12 penetrates through the bottom plate 1 and is threadedly installed inside the second threaded hole 111. A concave cavity is formed at the bottom of the bottom plate 1, and the fixing bolt 12 is arranged inside the concave cavity. The positioning convex shaft 11 is fixed to the upper end surface of the bottom plate 1 by the fixing bolt 12, which facilitates the installation of the lower die 2. Moreover, the nut of the fixing bolt 12 is located inside the concave cavity and does not protrude from the bottom plate 1, which can ensure the smoothness of the bottom plate 1.

[0032] The stator assembly jig proposed in this application replaces the positioning lower die 2 and the backrest 4 according to the sizes of the end cover assembly and the stator assembly. The end cover assembly and the stator assembly are respectively installed in the fixed groove 201 on the upper end surface of the positioning lower die 2 and the arc-shaped clamping groove 401 on the side wall of the backrest 4, realizing the compatibility of the sizes of multiple specifications of end cover assemblies and stator assemblies. Then, according to the change in the size of the stator assembly, the L-shaped adjusting bracket 3 is moved on the bottom plate 1 to change the positions of the backrest 4 on the side wall of the vertical plate 31 and the stator assembly installed in the arc-shaped clamping groove 401 on the inner side of the backrest 4, adjusting the concentricity of the end cover assembly and the stator assembly, ensuring the press-fitting perpendicularity, avoiding damage to the stator assembly shaft due to offset during press-fitting, improving the assembly accuracy and product reliability, and ensuring the qualified rate.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A stator assembly jig, comprising: Bottom plate (1), characterized in that a positioning lower die (2) is fixedly installed on the upper end surface of the bottom plate (1), a fixing groove (201) for installing an end cover assembly is formed on the upper end surface of the positioning lower die (2), and an L-shaped adjusting bracket (3) is arranged on one side of the positioning lower die (2). The L-shaped adjusting bracket (3) includes a vertical plate (31) and a horizontal plate (32). Among them, the horizontal plate (32) is slidably installed on the upper end surface of the bottom plate (1), the vertical plate (31) is arranged at one end of the horizontal plate (32) close to the positioning lower die (2), a backrest (4) is slidably arranged on one side of the vertical plate (31) close to the positioning lower die (2), an arc-shaped card slot (401) for defining the position of the stator assembly is formed on the side wall of the backrest (4), the arc-shaped card slot (401) and the fixing groove (201) are on the same central axis, and a first locking bolt (33) and a second locking bolt (34) are respectively arranged on the side of the vertical plate (31) far from the positioning lower die (2) and the upper end surface of the horizontal plate (32). The first locking bolt (33) and the second locking bolt (34) respectively penetrate through the vertical plate (31) and the horizontal plate (32) and are threadedly installed inside the backrest (4) and the bottom plate (1).

2. The stator assembly jig according to claim 1, wherein The number of the positioning lower die (2) and the backrest (4) is several. The fixing grooves (201) on the upper end surfaces of several positioning lower dies (2) and the arc-shaped card slots (401) on the side walls of several backrests (4) are respectively adapted to the models of the end cover assembly and the stator assembly.

3. The stator assembly jig according to claim 1, characterized in that, A universal positioning post (21) is arranged inside the positioning lower die (2), an empty slot (211) for receiving the shaft of the stator assembly is formed at the central position of the universal positioning post (21), and the empty slot (211) and the arc-shaped card slot (401) are on the same central axis.

4. A stator assembly jig according to claim 1, characterized in that Two third threaded holes (402) distributed symmetrically are formed on the side wall of the backrest (4) close to the vertical plate (31). A vertical through groove (311) is formed at the position of the side wall of the L-shaped adjusting bracket (3) corresponding to the third threaded hole (402). The first locking bolt (33) penetrates through the vertical through groove (311) and is threadedly installed inside the third threaded hole (402), and the first locking bolt (33) can slide inside the vertical through groove (311).

5. The stator assembly jig according to claim 1, characterized in that, Two first threaded holes (101) distributed symmetrically are formed on the upper end of the bottom plate (1) on one side of the positioning lower die (2). A horizontal through groove (321) is formed at the position of the end face of the horizontal plate (32) corresponding to the first threaded hole (101). The second locking bolt (34) penetrates through the horizontal through groove (321) and is threadedly installed inside the first threaded hole (101), and the second locking bolt (34) can slide inside the horizontal through groove (321).

6. The stator assembling jig according to claim 1, wherein, A positioning slot (202) is formed at the bottom of the positioning lower die (2), and a positioning convex shaft (11) is provided on the upper end surface of the bottom plate (1). The positioning convex shaft (11) is inserted into the positioning slot (202) to limit the position of the positioning lower die (2).

7. The stator assembly jig according to claim 6, characterized in that, A second threaded hole (111) is formed at the bottom of the positioning convex shaft (11). A fixing bolt (12) is provided at a position corresponding to the second threaded hole (111) below the bottom plate (1). The fixing bolt (12) penetrates through the bottom plate (1) and is threadedly installed in the second threaded hole (111).

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