Auxiliary tooling for motor magnetic shoe assembly

Abstract

The utility model belongs to the technical field of motor manufacturing equipment, and in particular, relates to an auxiliary tooling for assembling motor magnetic shoes. An auxiliary tooling for assembling motor magnetic shoes, including a central bracket, the central bracket is provided with a plurality of extensions extending radially and outwardly, the plurality of extensions are arranged in a ring-shaped uniform interval with the central bracket as the center, the extension is provided with an axially extending positioning plate at a position deviating from the central bracket, and a space for positioning the magnetic shoe is formed between two adjacent positioning plates, the radial outer side wall of the positioning plate is an arc surface and is used to contact and cooperate with the inner wall of the stator; each of the extensions is provided with an axially extending positioning protrusion at the radial outer side of the positioning plate, the positioning protrusion is used to be inserted into the screw hole of the stator housing, and the positioning protrusion and the positioning plate are both located on the same axial side of the extension. The utility model has the advantage of ensuring uniform performance of motor products of the same model.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor manufacturing equipment, and in particular relates to an auxiliary tooling for assembling motor magnetic shoes. Background Art

[0002] Magnetic tiles are key components in motors, mainly used to generate magnetic fields. The magnetic field distribution inside the motor directly determines the performance and operating efficiency of the motor.

[0003] A Chinese patent with application number 202021244935.1 discloses an auxiliary tooling for installing a motor stator magnetic tile, including a positioning bracket, the positioning bracket including a bracket body, the bracket body is cylindrical, and a plurality of positioning key teeth are arranged on the outer peripheral wall of the bracket body. The positioning key teeth are arranged at equal intervals along the circumferential direction of the bracket body, and a positioning space for fixing the stator magnetic tile is formed between adjacent positioning key teeth.

[0004] Although the positioning bracket of the above scheme can ensure uniform gaps between adjacent magnetic tiles when positioning the magnetic tiles, it is difficult to ensure that the installation positions of the magnetic tiles in each motor stator are the same, resulting in certain differences in magnetic field distribution of motors of the same model produced, resulting in different performance and operating efficiency of each motor, making it difficult to ensure uniform performance of motor products of the same model. Utility Model Content

[0005] The utility model aims to provide an auxiliary tool for assembling motor magnetic shoes, which can ensure the uniform performance of motor products of the same model.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary tooling for assembling motor magnetic shoes, including a center bracket, the center bracket is provided with a plurality of extension parts extending radially and outwardly, the plurality of extension parts are centered on the center bracket and are evenly spaced in a ring, the extension parts are provided with axially extending positioning plates deviating from the center bracket, and a space for positioning the magnetic shoes is formed between two adjacent positioning plates, the radial outer side wall of the positioning plate is an arc surface and is used to contact and cooperate with the inner wall of the stator; each of the extension parts is provided with an axially extending positioning protrusion at the radial outer side of the positioning plate, the positioning protrusion is used to be inserted into the screw hole of the stator housing, and the positioning protrusion and the positioning plate are both located on the same axial side of the extension part.

[0007] When installing the magnetic tile, the operator first places the tooling on the top of the stator housing, aligns the positioning protrusion with the screw hole on the end face of the positioning housing, and then places the tooling downward so that the positioning protrusion is inserted into the screw hole, and the radial outer wall of the positioning plate is in contact with the circumferential inner wall of the stator. The operator then sticks the magnetic tile between two adjacent positioning plates to complete the assembly between the magnetic tile and the stator.

[0008] The positioning plates and the positioning protrusions are also arranged in a circular shape with the central support as the center and at even intervals.

[0009] This solution provides a positioning protrusion, which is inserted into the screw hole of the stator housing. At the same time, the positioning plate and the positioning protrusion are both arranged on the same extension portion. Therefore, when the magnetic tile is fixed to the stator, there is a corresponding angular relationship between the magnetic tile and the screw hole of the stator housing, so that the position of the magnetic tile on the circumferential inner wall of the stator can be determined, thereby making the difference in magnetic field distribution in the stators of motors of the same model smaller, thereby ensuring that the performance of motor products of the same model is uniform.

[0010] Preferably, the positioning protrusion and the extension portion are detachably fixed.

[0011] Different positioning protrusions can be replaced to adapt to threaded holes with different apertures, making the device more versatile.

[0012] Preferably, the central bracket includes a fixing plate, a plurality of fixing grooves are provided on the fixing plate, the plurality of fixing grooves are evenly spaced in a ring shape on the fixing plate, and the locking member passes through the plurality of fixing grooves and is threadedly engaged with the extension portion.

[0013] A plurality of fixing grooves are provided on the fixing plate, and the locking piece passes through the fixing groove and is threadedly matched with the extension part, so that the number of extension parts and the angle between the extension parts can be adjusted, so as to be suitable for the assembly requirements between different numbers of magnetic tiles and stators. In addition, the fixing plate between the extension part and the central bracket can be detachably fixed, so that extension parts of different sizes can be replaced to use stators of different sizes and the positioning of magnetic steel. The fixing grooves can be hole-shaped one by one, and each hole has a special angle, and the fixing grooves can also be arc-shaped grooves.

[0014] Preferably, the extension portion includes a narrow section and a wide section extending in the radial direction from the radial inside to the radial outside, the narrow section is provided with an internal threaded hole and is threadedly matched with the locking piece, and the wide section is provided with the positioning plate.

[0015] The narrow section cooperates with the locking piece thread, thereby reducing the volume and avoiding interference between the extension parts.

[0016] Preferably, the circumferential inner edge cross-section of each fixing groove is arc-shaped and extends along the circumferential direction of the central support.

[0017] It is convenient for operators to adjust the angle between adjacent extension parts, and the fixing groove is set as an arc-shaped groove, so the adjustment angle range is wider.

[0018] Preferably, the fixing groove includes a first fixing groove and a second fixing groove, the first fixing groove and the second fixing groove correspond to each other one by one, the length of the second fixing groove is greater than the length of the first fixing groove, and the second fixing groove is located radially outside the first fixing groove.

[0019] The two fixing grooves can prevent the extension portion from rotating after being fixed by the locking member.

[0020] Preferably, the symmetry axes of the first fixing groove and the second fixing groove are arranged to coincide with each other.

[0021] The first fixing groove and the second fixing groove are both arc-shaped. When the symmetry axes of the two coincide with each other, the extending portion can be adjusted in a larger angle range.

[0022] Preferably, an axially extending cylindrical positioning rod is provided at the center of the fixing plate, and the radial inner side surface of the extension portion is an arc surface and contacts and cooperates with the circumferential outer wall of the positioning rod.

[0023] The radial inner side surface of the extension portion is an arc surface and contacts and cooperates with the circumferential outer wall of the positioning rod, further increasing the positioning accuracy of the extension portion and avoiding the extension portion from being offset, thereby ensuring uniform spacing between the magnetic steels.

[0024] The utility model has the advantage of ensuring that the performance of motor products of the same model is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of the utility model from another perspective.

[0027] Figure 3 It is a schematic diagram of the structure of the utility model when in use.

[0028] Figure numbers: 1, extension; 11, wide section; 12, narrow section; 2, positioning plate; 3, positioning protrusion; 4, fixing plate; 41, positioning rod; 51, first fixing groove; 52, second fixing groove; 6, locking piece; 100, stator housing; 101, screw hole; 200, magnetic tile. DETAILED DESCRIPTION

[0029] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2As shown, this embodiment discloses an auxiliary tooling for assembling motor magnetic shoes, including a central support, the central support including a circular fixing plate 4, and an axially extending positioning rod 41 is provided at the center of the fixing plate 4. The central support is provided with four extensions 1 extending radially outward, and the four extensions 1 are arranged in a circular shape with the center of the central support as the center and are evenly spaced.

[0031] like Figure 1 and Figure 2 As shown, the fixing plate 4 is provided with four annular fixing grooves evenly spaced apart, each fixing groove passes through the fixing plate 4 up and down, and the circumferential inner edge of the fixing groove is arc-shaped and extends along the circumferential direction of the fixing plate 4, and the fixing grooves include a first fixing groove 51 and a second fixing groove 52 corresponding to each other, the second fixing groove 52 is located radially outside the first fixing groove 51, and the length of the second fixing groove 52 is greater than the length of the first fixing groove 51, and the symmetry axes of the first fixing groove 51 and the second fixing groove 52 are arranged to coincide. The extension portion 1 includes a narrow section 12 and a wide section 11 from the radial inside to the radial outside, the radial inner side wall of the narrow section 12 is an arc surface and contacts and cooperates with the circumferential outer wall of the positioning rod 41, and the narrow section 12 is provided with two internal threaded holes spaced apart in the radial direction, and the locking member 6 passes through the first fixing groove 51 and the second fixing groove 52 and is threadedly matched with the two internal threaded holes on the narrow section 12, thereby fixing the extension portion 1 on the fixing plate 4.

[0032] like Figures 1 to 3 As shown, the wide section 11 is provided with an axially extending positioning plate 2, and the radially outer side wall and the radially inner side wall of the positioning plate 2 are both arc surfaces, and the radially outer side wall of the positioning plate 2 is used to contact and cooperate with the inner wall of the stator. The wide section 11 of the extension portion 1 is provided with an axially extending positioning protrusion 3 on the radially outer side away from the positioning plate 2, and one end of the positioning protrusion 3 is threadedly engaged with the wide section 11, and the positioning protrusion 3 is used to extend into the screw hole 101 of the stator housing 100, and the positioning protrusion 3 and the positioning plate 2 are both located on the same axial side.

[0033] During the use of this tooling, the position of each extension 1 is first corrected by standard parts, so that the angle relationship between two adjacent extensions 1 meets the requirements. The corrected tooling is placed on the top of the stator, so that the positioning protrusion 3 can be aligned with the screw hole 101 on the axial end face of the stator housing 100, and then the entire tooling is lowered to the axial end face of the stator housing 100, so that the positioning protrusion 3 is inserted into the screw hole 101, and at the same time, the radial outer wall of the positioning plate 2 is in contact with the inner wall of the stator. Then the operator places the magnetic steel 200 coated with glue between two adjacent positioning plates 2 and sticks it to the inner wall of the stator.

Claims

1. An auxiliary tooling for assembling motor magnetic shoes, comprising a central support, the central support is provided with a plurality of extensions extending radially and outwardly, the plurality of extensions are arranged in a circular shape with the central support as the center and at even intervals, characterized in that: An axially extending positioning plate is provided at the extension portion deviating from the center bracket, and a space for positioning the magnetic tile is formed between two adjacent positioning plates. The radial outer side wall of the positioning plate is an arc surface and is used to contact and cooperate with the inner wall of the stator; each extension portion is provided with an axially extending positioning protrusion at the radial outer side of the positioning plate, and the positioning protrusion is used to be inserted into the screw hole of the stator housing, and the positioning protrusion and the positioning plate are both located on the same axial side of the extension portion.

2. The auxiliary tooling for assembling motor magnetic shoe according to claim 1 is characterized in that: The positioning protrusion and the extension portion are detachably fixed.

3. The auxiliary tooling for assembling motor magnetic shoe according to claim 1 is characterized in that: The central support comprises a fixing plate, a plurality of fixing grooves are arranged on the fixing plate, the fixing grooves are evenly spaced in a ring shape on the fixing plate, and the locking member passes through the fixing grooves and is threadedly engaged with the extension portion.

4. The auxiliary tooling for assembling motor magnetic shoe according to claim 3 is characterized in that: The extension portion includes a narrow section and a wide section extending in the radial direction from the radial inside to the radial outside, the narrow section is provided with an internal threaded hole and is threadedly matched with the locking piece, and the wide section is provided with the positioning plate.

5. The auxiliary tooling for assembling motor magnetic shoe according to claim 3 is characterized in that: The circumferential inner edge cross section of each fixing groove is arc-shaped and extends along the circumferential direction of the central support.

6. The auxiliary tooling for assembling motor magnetic shoe according to claim 5, characterized in that: The fixing groove includes a first fixing groove and a second fixing groove, the first fixing groove and the second fixing groove correspond to each other, the length of the second fixing groove is greater than the length of the first fixing groove, and the second fixing groove is located radially outside the first fixing groove.

7. The auxiliary tooling for assembling motor magnetic shoe according to claim 6, characterized in that: The symmetry axes of the first fixing groove and the second fixing groove are arranged to coincide with each other.

8. The auxiliary tooling for assembling motor magnetic shoe according to any one of claims 3 to 7, characterized in that: An axially extending cylindrical positioning rod is provided at the center of the fixing plate, and the radial inner side surface of the extension portion is an arc surface and contacts and cooperates with the circumferential outer wall of the positioning rod.

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