Stator shaping tool

Abstract

The utility model discloses a stator shaping tool. The stator shaping tool sequentially comprises a shaping die assembly, a presser foot assembly, a supporting frame, a connecting shaft, an upper bottom die and a lower bottom die from top to bottom. The shaping die assembly is composed of a shaping die and a mounting cover surrounding the shaping die. The bottom end of the connecting shaft is installed in an installation hole in the center of the upper bottom die, the extending end of the connecting shaft is sleeved with a supporting frame, and the upper portion of the supporting frame abuts against the sizing die. The presser foot assembly is assembled on the mounting cover, and a shaping space of the coil inserting stator is formed between the outer surface of the shaping die and the inner wall surface of the presser foot assembly; by improving the motor tool, a stator screw hole is effectively avoided, and the motor quality is improved.

Description

Technical Field

[0001] The utility model relates to a stator shaping tool. Background Art

[0002] The stator is the stationary part of the motor or generator. During the production process, the stator bars need to be inserted into the stator slots of the generator and fixed.

[0003] After the wire is embedded in the stator, a minimum creepage distance from the enameled wire to the stator core or the mounting screw is required; however, the current stator embedding has the following problems: due to the wire embedding stator mold, the screw holes on the stator cannot be avoided, resulting in the screws not being assembled in place, which can easily lead to problems such as motor leakage in the subsequent process. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a stator shaping tool that can avoid screw holes.

[0005] The technical solution to realize the utility model is as follows

[0006] A stator shaping tool comprises, from top to bottom, a shaping die assembly, a presser foot assembly, a support frame, a connecting shaft, an upper bottom die and a lower bottom die; the shaping die assembly consists of a shaping die and a mounting cover surrounding the shaping die; the bottom end of the connecting shaft is mounted in a mounting hole in the center of the upper bottom die, the protruding end of the connecting shaft is sleeved with a support frame, and the upper part of the support frame abuts against the shaping die; the presser foot assembly is assembled on the mounting cover, and a shaping space for an embedded wire stator is formed between the outer surface of the shaping die and the inner wall surface of the presser foot assembly.

[0007] A plurality of slots are evenly distributed on the side wall surface of the installation cover.

[0008] At least two guide holes are evenly distributed on the bottom surface of the installation cover, and the upper bottom mold is provided with guide columns used in conjunction with the guide holes, and the guide columns correspond to the guide holes one by one.

[0009] The support frame is in a cross shape, and an insertion space for the presser foot to be inserted is formed between the legs of the two support frames. The presser foot is rotatably mounted on the support frames on both sides through a rotating shaft.

[0010] The presser foot assembly includes a plurality of presser feet, and the presser feet correspond to the slots one by one; the presser foot is formed into a "C" shape by an upper transverse section, a lower transverse section and a vertical section connecting the two transverse sections, the upper transverse section of the presser foot is inserted into the corresponding slot, and the lower transverse section of the presser foot is inserted into the corresponding insertion space.

[0011] The upper and lower bottom molds are spliced ​​together, and the upper bottom mold is also provided with an adjustment component.

[0012] The adjustment component includes an adjustment spring; an annular groove is provided in the center of the upper bottom mold, and the adjustment spring is sleeved in the annular groove. One end of the adjustment spring abuts against the annular groove, and the other end abuts against the support frame.

[0013] The lower transverse section extends outward to form an extension section, and an adjusting screw is arranged on the upper bottom mold below the extension section.

[0014] The above technical solution is adopted. 1. By improving the motor tooling, the stator screw holes are effectively avoided, the motor quality is improved, and the national standard ≥3mm safety distance is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the shaping mold assembly of the utility model;

[0018] In the accompanying drawings, 1 is a shaping mold assembly, 2 is a presser foot assembly, 3 is a support frame, 4 is a connecting shaft, 5 is an upper bottom mold, 6 is a lower bottom mold, 7 is a shaping mold, 8 is a mounting cover, 9 is a shaping space, 10 is a slot, 11 is a wire groove, 12 is a guide column, 13 is a presser foot, 14 is an upper horizontal section, 15 is a lower horizontal section, 16 is a vertical section, 17 is an adjusting spring, 18 is an adjusting screw, and 20 is a rotating shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A stator shaping tool comprises, from top to bottom, a shaping die assembly 1, a presser foot assembly 2, a support frame 3, a connecting shaft 4, an upper bottom die 5 and a lower bottom die 6; the shaping die assembly consists of a shaping die 7 and a mounting cover 8 surrounding the shaping die, the shaping die is placed in the center of the inverted mounting cover, and the shaping die and the mounting cover are integrally formed; the bottom end of the connecting shaft is mounted in a mounting hole in the center of the upper bottom die, the protruding end of the connecting shaft is sleeved with a support frame, and the upper part of the support frame abuts against the shaping die; the presser foot assembly is assembled on the mounting cover, and a shaping space 9 for an embedded wire stator is formed between the outer surface of the shaping die and the inner wall surface of the presser foot assembly. During shaping, the wire-embedded stator rotates the shaping mold through the elastic force of the spring, puts the wire-embedded stator into the mold, and presses down the wire-embedded stator in the shaping space by the press machine. The downward movement of the stator drives the shaping mold downward, causing the presser foot to rotate toward the shaping space, thereby shaping the wire-embedded stator in place. Since the active presser foot is used to shape the wire-embedded stator, it can not only be shaped in place, but also effectively avoid the screw holes on the wire-embedded stator. When the shaping mold is suspended, the shaping mold presser foot is in an outward-bounced state, and the presser foot is in a contracted state when the shaping is in place.

[0021] A plurality of slots 10 are evenly distributed on the side wall of the mounting cover, and a wire slot 11 is provided between two adjacent slots for easy wiring, so that the presser foot can be inserted into the slot for use.

[0022] At least two guide holes are evenly distributed on the bottom surface of the installation cover, and the upper bottom mold is provided with guide columns 12 used in conjunction with the guide holes, and the guide columns correspond to the guide holes one by one.

[0023] The support frame is cross-shaped, and an insertion space for the presser foot 13 to be inserted is formed between the legs of the two support frames. The presser foot is rotatably mounted on the corresponding support frames on both sides through a rotating shaft 20, and the presser foot can rotate around the rotating shaft. The presser foot is rotatably mounted in the insertion space through the rotating shaft.

[0024] The presser foot assembly includes a plurality of presser feet, and the presser feet correspond to the slots one by one; the presser foot is formed into a "C" shape by an upper transverse section 14, a lower transverse section 15 and a vertical section 16 connecting the two transverse sections, the upper transverse section of the presser foot is inserted into the corresponding slot, and the lower transverse section of the presser foot is inserted into the corresponding insertion space.

[0025] The upper and lower bottom molds are spliced ​​together, and the upper bottom mold is also provided with an adjustment component.

[0026] The adjusting assembly includes an adjusting spring 17; an annular groove is provided in the center of the upper bottom mold, and the adjusting spring is sleeved in the annular groove, one end of the adjusting spring abuts against the annular groove, and the other end abuts against the support frame. The shaping mold is rotated empty by the spring.

[0027] The lower transverse section extends outward to form an extension section, and the upper bottom mold below the extension section is provided with an adjusting screw 18. By adjusting the height of the screw, the position of the presser foot in the slot after rotation is indirectly adjusted to adjust the shaping space, and the shaping size of the stator screw hole is adjusted due to the change of the shaping space.

Claims

1. A stator shaping tool, characterized in that: From top to bottom, it includes a shaping mold assembly, a presser foot assembly, a support frame, a connecting shaft, an upper bottom mold and a lower bottom mold; the shaping mold assembly consists of a shaping mold and a mounting cover surrounding the shaping mold; the bottom end of the connecting shaft is installed in the mounting hole in the center of the upper bottom mold, and the protruding end of the connecting shaft is covered with a support frame, and the top of the support frame abuts against the shaping mold; the presser foot assembly is assembled on the mounting cover, and a shaping space for the embedded wire stator is formed between the outer surface of the shaping mold and the inner wall surface of the presser foot assembly.

2. A stator shaping tool according to claim 1, characterized in that: A plurality of slots are evenly distributed on the side wall surface of the installation cover.

3. A stator shaping tool according to claim 2, characterized in that: At least two guide holes are evenly distributed on the bottom surface of the installation cover, and the upper bottom mold is provided with guide columns used in conjunction with the guide holes, and the guide columns correspond to the guide holes one by one.

4. A stator shaping tool according to claim 1, characterized in that: The support frame is in a cross shape, and an insertion space for the presser foot to be inserted is formed between the legs of the two support frames. The presser foot is rotatably mounted on the support frames on both sides through a rotating shaft.

5. A stator shaping tool according to claim 2, characterized in that: The presser foot assembly includes a plurality of presser feet, and the presser feet correspond to the slots one by one; the presser foot is formed into a "C" shape by an upper transverse section, a lower transverse section and a vertical section connecting the two transverse sections, the upper transverse section of the presser foot is inserted into the corresponding slot, and the lower transverse section of the presser foot is inserted into the corresponding insertion space.

6. A stator shaping tool according to claim 1, characterized in that: The upper bottom mold and the lower bottom mold are spliced ​​together, and the upper bottom mold is also provided with an adjustment component.

7. A stator shaping tool according to claim 6, characterized in that: The adjustment component includes an adjustment spring; an annular groove is provided in the center of the upper bottom mold, and the adjustment spring is sleeved in the annular groove. One end of the adjustment spring abuts against the annular groove, and the other end abuts against the support frame.

8. The stator shaping tool according to claim 5, characterized in that: The lower transverse section extends outward to form an extension section, and an adjusting screw is arranged on the upper bottom mold below the extension section.

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