Enhanced motor riveting piece fixing structure

Abstract

The utility model provides an enhanced motor riveting piece fixing structure which comprises a rivet, the head end of the rivet is located in a fixing groove formed in a front magnetism isolating plate, the tail end of the rivet is located in a fixing groove formed in a rear magnetism isolating plate, the tail end of the rivet is symmetrically connected with a bending part, the inner surface of the bending part is fixedly connected with an auxiliary block, and the auxiliary block is fixedly connected with the rivet. A locking hole is formed in the inclined face of the auxiliary block, a locking assembly fixedly connected with the surface of the fixing plate is fixedly connected into the locking hole, a positioning hole is correspondingly formed in the surface of the punching sheet relative to the position of the rivet, positioning blocks are symmetrically connected to the inner side face of the positioning hole, and a positioning groove is correspondingly formed in the surface of the rivet relative to the position of the positioning block. According to the utility model, through the cooperation of the bending part, the auxiliary block, the locking assembly and the fixing plate, the fixing effect of the rivet on the punching sheet can be effectively enhanced, the stability of the fixed punching sheet is enhanced, and the situation that the fixing structure of the rivet is accidentally removed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely relates to a reinforced motor rivet fixing structure. BACKGROUND

[0002] The motor rivet fixing structure can also be called a motor stator or rotor punching sheet tightly stable riveting structure. This structure is mainly used to ensure the tight connection between the motor stator or rotor punching sheet, thereby improving the overall performance and reliability of the motor. The working principle of the motor rivet fixing structure is usually to insert a rivet into the pre-designed hole of the punching sheet, and then deform the rivet through external force (such as pressure or impact force), thereby firmly connecting the punching sheets together. However, the rivet is usually cylindrical, and then during the embedding process of the first two groups of rivets, the stacked punching sheets are prone to corresponding positional deviation between them, thereby causing the pre-set holes on the surface of the punching sheet to be misaligned, making it difficult for the rivet to be smoothly embedded, reducing the fixing efficiency of the punching sheet. At the same time, the deformation fixing structure of the rivet itself is relatively simple, making the rivet deformation part prone to resetting, thereby reducing the stability of the punching sheet fixed connection. SUMMARY

[0003] In order to overcome the defects existing in the prior art, the present application provides a reinforced motor rivet fixing structure to solve the problems raised in the background art.

[0004] To achieve the above purpose, a reinforced motor rivet fixing structure is provided, which comprises: a rivet, the punching sheet is fixedly connected between the front and rear magnetic separation plates through the rivet, the leading end of the rivet is located in the fixed groove of the front magnetic separation plate, the trailing end of the rivet is located in the fixed groove of the rear magnetic separation plate, the trailing end of the rivet is symmetrically connected to the bending part, the inner surface of the bending part is fixedly connected to the auxiliary block, the locking hole is formed at the inclined surface of the auxiliary block, the locking assembly fixedly connected to the surface of the fixed plate is fixedly connected in the locking hole, and the positioning hole corresponding to the position of the rivet relative to the surface of the punching sheet is formed, the positioning block is symmetrically connected to the inner side of the positioning hole, and the positioning groove corresponding to the position of the rivet relative to the positioning block is formed on the surface of the rivet.

[0005] Preferably, the rivet is in overall cylindrical structure, the shaft cross section of the leading end of the rivet is in T-shaped structure, eight groups of bending parts are fixedly connected to the end surface of the trailing end of the rivet along the circumference at equal intervals, and the bending part is in rectangular structure.

[0006] Preferably, the auxiliary block is fixedly connected to the end of the inner side of the bending part away from the rivet, and the auxiliary block is in right-angled trapezoidal structure, the locking hole formed at the inclined surface of the auxiliary block is in shaft cross section in Chinese character shape, and the side surface of the locking hole protruding outward in the middle is in spherical structure.

[0007] Preferably, the positioning holes of the punch piece are circumferentially surrounded by eight groups of fixedly connected positioning blocks at equal intervals, the eight groups of positioning blocks are square structures, the positioning grooves of the outer arc surface of the rivet are long strip structures, and the positioning grooves and the bending parts are distributed in a staggered manner.

[0008] Preferably, the fixing plate is a circular truncated cone structure as a whole, the inclined surface of the fixing plate and the inclined surface of the auxiliary block are parallel to each other, the outer diameter of the fixing plate is equal to the diameter of the opening of the fixing groove, and the position of the inclined surface of the fixing plate corresponds to the connection of the locking assembly relative to the locking hole.

[0009] Preferably, the locking assembly is composed of a positioning column, a bending plate and an embedded block, the positioning column and the embedded block are both cylindrical structures, the positioning column and the embedded block are matched with the size of the opening of the locking hole, the embedded block is fixedly connected with a stop rod on the side close to the positioning column, the stop rod is a cylindrical structure, and the embedded block and the stop rod combined together form a T-shaped structure in the axial section.

[0010] Preferably, four groups of bending plates are fixedly connected at equal intervals on the edge of the side of the embedded block close to the positioning column, the four groups of bending plates are all rectangular structures, the side of the bending plate close to the stop rod is an arc surface structure, and the length of the bending plate is greater than the axial length of the stop rod.

[0011] Compared with the prior art, the utility model has the beneficial effects that: through the cooperation of the positioning block and the positioning groove, the positioning and limiting of the punch piece can be realized after the first group of rivets is embedded in the positioning hole of the punch piece, thereby the problem of position deviation of the stacked punch piece due to rotation in the subsequent rivet embedding process can be avoided, the fixing efficiency of the punch piece is improved, meanwhile, through the cooperation of the bending part, the auxiliary block, the locking assembly and the fixing plate, the fixing structure can realize double fixing, so that the fixing effect of the rivet on the punch piece is enhanced, and the probability of accidental release of the rivet is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of the utility model embodiment.

[0013] Figure 2 It is a punch piece front view schematic diagram of the utility model embodiment.

[0014] Figure 3 It is a rivet and fixing plate partially split schematic diagram of the utility model embodiment.

[0015] Figure 4 It is a Figure 1 enlarged schematic diagram of A of the utility model embodiment.

[0016] In the figure: 1, front magnetic plate; 2, punching piece; 3, rivet; 4, rear magnetic plate; 5, bending part; 6, auxiliary block; 7, locking assembly; 8, fixed plate; 9, fixed groove; 10, positioning block; 11, positioning hole; 12, positioning column; 13, bending plate; 14, stop rod; 15, fitting block; 16, positioning groove. DETAILED DESCRIPTION

[0017] Referring to Figures 1 to 4 As shown in the figure, the utility model provides a reinforced motor rivet fixing structure, include: rivet 3, the front magnetic plate 1 and the rear magnetic plate 4 are fixedly connected punching piece 2 through rivet 3, the first end of rivet 3 is located in the fixed groove 9 that the front magnetic plate 1 has set up, and the tail end of rivet 3 is located in the fixed groove 9 that the rear magnetic plate 4 has set up, and the tail end of rivet 3 is connected bending part 5 symmetrically, the inner surface of bending part 5 is fixedly connected auxiliary block 6, and the locking hole is set up in the inclined surface of auxiliary block 6, and the locking assembly 7 fixedly connected on the surface of fixed plate 8 is fixedly connected in the locking hole, and the position corresponding rivet 3 of punching piece 2 surface is set up positioning hole 11, and the inside surface of positioning hole 11 is connected positioning block 10 symmetrically, and the position corresponding positioning block 10 of rivet 3 surface is set up positioning groove 16.

[0018] In the embodiment, the stacked stator or rotor punching piece 2 is placed between the front magnetic plate 1 and the rear magnetic plate 4, so that the fixed groove 9 and the positioning groove 16 are communicated with each other, the tail end of the rivet 3 is sequentially inserted through the fixed groove 9 of the front magnetic plate 1, the positioning groove 16 of the punching piece 2 and the fixed groove 9 of the rear magnetic plate 4, and the preliminary positioning of the punching piece 2 is completed, wherein the positioning block 10 in the positioning groove 16 is slidingly connected in the positioning groove 16 formed on the surface of the rivet 3, then the bending part 5 at the tail end of the rivet 3 is punched by a conical punch (not shown in the figure), and the inclined surface of the punch can reduce the outward bending of the bending part 5 through the auxiliary block 6, so that the bending part 5 can form an L-shaped structure in the fixed groove 9 formed in the rear magnetic plate 4, and the preliminary fixing of the punching piece 2 by the rivet 3 is completed, the locking assembly 7 on the surface of the fixed plate 8 and the locking hole on the surface of the auxiliary block 6 are one-to-one corresponding, the fitting block 15 in the locking assembly 7 is embedded in the locking hole through the fixed plate 8, when the fitting block 15 abuts against the bottom of the locking hole and the fixed plate 8 continues to push the positioning column 12 to move, the bending plate 13 symmetrically connected between the fitting block 15 and the positioning column 12 will be bent under stress, and then the bending plate 13 can form a C-shaped structure in the outer convex groove of the locking hole, so that the fixed connection of the auxiliary block 6 and the locking assembly 7 is completed, the riveting and fixing effect of the punching piece 2 by the rivet 3 is further enhanced, and the fixing quality of the punching piece 2 during the operation of the motor is ensured.

[0019] As a preferred embodiment, the rivet 3 is in a cylindrical structure as a whole, the shaft section of the first end of the rivet 3 is in a T-shaped structure, and eight sets of bending parts 5 are fixedly connected around the end face of the tail end of the rivet 3 at equal intervals in a circumferential direction, and the bending parts 5 are in a rectangular structure.

[0020] In the embodiment, as shown in Figure 1 and Figure 4 , the bending part 5 is arranged so that the rivet 3 tail end can be fixedly connected in the fixed groove 9 opened in the rear magnetic plate 4 after being punched, thereby enhancing the fixing effect of the punching sheet 2.

[0021] As a preferred embodiment, the inside surface of the bending part 5 is fixedly connected with the auxiliary block 6 away from the rivet 3, and the auxiliary block 6 is in a right-angled trapezoidal structure, and the locking hole opened in the inclined surface of the auxiliary block 6 is in a Chinese character-shaped cross section, and the side surface of the locking hole protruding outward in the middle is in a spherical structure.

[0022] In the embodiment, as shown in Figure 3 and Figure 4 , the inclined surface structure of the auxiliary block 6 can improve the bending effect of the bending part 5 during the punching process, and the structure of the locking hole can assist in enhancing the clamping effect after the locking assembly 7 is embedded, thereby enhancing the riveting and fixing effect of the rivet 3 on the punching sheet 2.

[0023] As a preferred embodiment, the positioning hole 11 opened in the punching sheet 2 is fixedly connected with eight groups of positioning blocks 10 at equal intervals in the circumferential direction, and the eight groups of positioning blocks 10 are in a square structure, and the positioning groove 16 opened in the outer arc surface of the rivet 3 is in a long strip-shaped structure, and the positioning groove 16 and the bending part 5 are in a staggered distribution.

[0024] In the embodiment, as shown in Figure 2 and Figure 3 , the size of the positioning block 10 and the positioning groove 16 is matched, thereby assisting in enhancing the positioning effect of the rivet 3 on the punching sheet 2, avoiding the problem that the stacked punching sheet 2 can still rotate after being embedded with the first group of rivets 3, thereby improving the embedding efficiency of the subsequent rivets 3.

[0025] As a preferred embodiment, the fixed plate 8 is in a circular truncated cone structure as a whole, the inclined surface of the fixed plate 8 and the inclined surface of the auxiliary block 6 are parallel to each other, the outer diameter of the fixed plate 8 is equal to the diameter of the opening of the fixed groove 9, and the inclined surface of the fixed plate 8 corresponds to the connection of the locking assembly 7 relative to the position of the locking hole.

[0026] In the embodiment, as shown in Figure 3 and Figure 4 , the structure of the fixed plate 8 can further flatten the bending part 5 of the rivet 3 tail end in the fixed groove 9, and can also assist in closing the opening end of the fixed groove 9, thereby reducing the probability of sharp edges in the motor, and can also assist in enhancing the riveting and fixing effect of the rivet 3 on the punching sheet 2.

[0027] As a preferred implementation, the locking assembly 7 is composed of the positioning column 12, the curved plate 13 and the embedded block 15, wherein the positioning column 12 and the embedded block 15 are both in cylindrical structure, and the positioning column 12 and the embedded block 15 are both matched with the size of the locking hole opening, and the embedded block 15 is fixedly connected with the stop rod 14 on the side close to the positioning column 12, and the stop rod 14 is in cylindrical structure, and the embedded block 15 and the stop rod 14 are combined together to form a T-shaped structure in axial section.

[0028] In the embodiment, the positioning column 12 and the embedded block 15 are matched with the size of the locking hole, thereby assisting in enhancing the stability of the locking assembly 7 after being embedded and clamped, and the stop rod 14 is arranged to effectively limit the change of the spacing between the embedded block 15 and the positioning column 12, thereby ensuring that the curved plate 13 can be normally bent, and enhancing the clamping and fixing effect of the locking assembly 7 in the locking hole. Figure 3 Figure 4 In the embodiment, the positioning column 12 and the embedded block 15 are matched with the size of the locking hole, thereby assisting in enhancing the stability of the locking assembly 7 after being embedded and clamped, and the stop rod 14 is arranged to effectively limit the change of the spacing between the embedded block 15 and the positioning column 12, thereby ensuring that the curved plate 13 can be normally bent, and enhancing the clamping and fixing effect of the locking assembly 7 in the locking hole.

[0029] As a preferred implementation, the embedded block 15 is fixedly connected with four groups of curved plates 13 at the edge of the side close to the positioning column 12 in a circumferential direction at equal intervals, and the four groups of curved plates 13 are all in rectangular structure, and the side close to the stop rod 14 of the curved plate 13 is in arc surface structure, and the length of the curved plate 13 is greater than the axial length of the stop rod 14.

[0030] In the embodiment, the arc groove structure of the curved plate 13 is arranged, so that the locking assembly 7 can be smoothly clamped in the locking hole, and then the rivet 3 can be double-riveted and fixed to the punching sheet 2 through the cooperation of the fixed plate 8 and the locking assembly 7, thereby enhancing the fixing effect of the punching sheet 2. Figure 3 Figure 4 In the embodiment, the arc groove structure of the curved plate 13 is arranged, so that the locking assembly 7 can be smoothly clamped in the locking hole, and then the rivet 3 can be double-riveted and fixed to the punching sheet 2 through the cooperation of the fixed plate 8 and the locking assembly 7, thereby enhancing the fixing effect of the punching sheet 2.

[0031] The enhanced motor rivet fixing structure can effectively enhance the fixing effect of the rivet 3 on the punching sheet 2, enhance the stability of the fixed punching sheet 2, avoid the accidental release of the fixing structure of the rivet 3, and thereby enhance the motor rivet fixing effect.​​

Claims

1. An enhanced motor rivet tab securement structure, comprising: Rivets (3), the front magnetic plate (1) and the rear magnetic plate (4) are fixedly connected to the punching sheet (2) through the rivets (3), characterized in that: the head end of the rivet (3) is located in the fixed groove (9) opened in the front magnetic plate (1), and the tail end of the rivet (3) is located in the fixed groove (9) opened in the rear magnetic plate (4), and the tail end of the rivet (3) is symmetrically connected to the bent part (5), the inner surface of the bent part (5) is fixedly connected to the auxiliary block (6), and the locking hole is opened at the inclined surface of the auxiliary block (6), and the locking assembly (7) fixedly connected to the surface of the fixed plate (8) is fixedly connected in the locking hole, and the position corresponding to the rivet (3) on the surface of the punching sheet (2) is provided with the positioning hole (11), the inside of the positioning hole (11) is symmetrically connected to the positioning block (10), and the position corresponding to the positioning block (10) on the surface of the rivet (3) is provided with the positioning groove (16).

2. The enhanced motor rivet fixation structure of claim 1, wherein, The rivet (3) is in a cylindrical structure, the shaft section of the head end of the rivet (3) is in a T-shaped structure, and eight groups of bent parts (5) are fixedly connected to the end face of the tail end of the rivet (3) along the circumference at equal intervals, and the bent part (5) is in a rectangular structure.

3. The enhanced motor rivet fixation structure of claim 1, wherein, The end of the inner side of the bent part (5) away from the rivet (3) is fixedly connected to the auxiliary block (6), and the auxiliary block (6) is in a right trapezoidal structure, and the locking hole opened at the inclined surface of the auxiliary block (6) is in a Chinese character-shaped structure, and the side of the locking hole protruding outward in the middle is in a spherical structure.

4. The enhanced motor rivet fixation structure of claim 1, wherein, The positioning hole (11) opened in the punching sheet (2) is fixedly connected to eight groups of positioning blocks (10) along the circumference at equal intervals, and the eight groups of positioning blocks (10) are all in a square structure, and the positioning groove (16) opened in the outer arc surface of the rivet (3) is in a long strip-shaped structure, and the positioning groove (16) and the bent part (5) are distributed in a staggered manner.

5. The enhanced motor rivet fixation structure of claim 1, wherein, The fixed plate (8) is in a circular truncated cone structure, the inclined surface of the fixed plate (8) and the inclined surface of the auxiliary block (6) are parallel to each other, the outer diameter of the fixed plate (8) is equal to the diameter of the opening of the fixed groove (9), and the locking assembly (7) is connected to the position corresponding to the locking hole on the inclined surface of the fixed plate (8).

6. The enhanced motor rivet fixation structure of claim 1, wherein, The locking assembly (7) is composed of a positioning column (12), a curved plate (13) and an embedded block (15), the positioning column (12) and the embedded block (15) are both in a cylindrical structure, the positioning column (12) and the embedded block (15) are matched with the size of the opening of the locking hole, the stop rod (14) is fixedly connected to the side of the surface of the embedded block (15) close to the positioning column (12), the stop rod (14) is in a cylindrical structure, and the embedded block (15) and the stop rod (14) combined together are in a T-shaped structure in the shaft section.

7. The enhanced motor rivet fixation structure of claim 6, wherein, The edge of the side of the embedded block (15) close to the positioning column (12) is fixedly connected to four groups of curved plates (13) along the circumference at equal intervals, the four groups of curved plates (13) are all in a rectangular structure, the side of the curved plate (13) close to the stop rod (14) is in an arc surface structure, and the length of the curved plate (13) is greater than the axial length of the stop rod (14).

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