Automatic positioning tool for motor front cover machining center

Abstract

The utility model relates to the technical field of motor machining equipment, and discloses an automatic positioning tool for a motor front cover machining center, which comprises a workbench, a supporting part, a center positioning assembly and a pressing assembly. Wherein the supporting part is arranged at the top of the workbench, the supporting part supports the edge of the front cover of the motor and forms a containing space together with the workbench, and the center positioning assembly is arranged at the top of the workbench, located in the middle of the containing space and used for positioning a bearing hole of the front cover of the motor. The pressing assembly is arranged on the workbench and used for pressing the motor front cover on the supporting part. Through mutual cooperation of the center positioning assembly and the pressing assembly, the motor front cover is automatically positioned from the middle to the side face, manual operation is not needed, the positioning time is short, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electric motor processing equipment, specifically to an automatic positioning fixture for an electric motor front cover processing center. Background Technology

[0002] The front cover of an electric motor is a crucial component, installed at the front end of the motor. It typically includes a cover body, bearing holes within the cover body, and multiple lugs on the sides of the cover body. Its purpose is to protect the internal components of the motor, preventing dust, moisture, and other impurities from entering the motor and ensuring its normal operation. The machining precision of the front cover directly affects the performance and quality of the motor. In traditional manufacturing processes, the positioning and fixing of the electric motor front cover usually relies on manual operation, resulting in low efficiency and inconsistent precision. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the purpose of this utility model is to provide an automatic positioning fixture for a motor front cover machining center.

[0004] The automatic positioning fixture for a motor front cover machining center described in this utility model includes:

[0005] Workbench;

[0006] A support portion is disposed on the top of the workbench, the support portion supports the edge of the front cover of the motor and together with the workbench forms an accommodating space;

[0007] A central positioning component is disposed on the top of the workbench and located in the middle of the accommodating space, and is used to position the bearing hole of the motor front cover;

[0008] A clamping assembly is disposed on the worktable and is used to press the front cover of the motor onto the support.

[0009] Preferably, the center positioning component includes a first linear drive unit disposed at the bottom of the workbench, a tapered tie rod connected to the output shaft of the first linear drive unit, and an outer support member disposed at the top of the workbench. The tapered tie rod is sleeved inside the outer support member. When the tapered tie rod moves, it can drive the outer support member to open outward and thus tighten the bearing hole of the motor front cover for positioning.

[0010] Preferably, the external support includes a base plate disposed on the top of the workbench, a plurality of elastic plates disposed on the base plate, and a plurality of tensioning edges disposed on the plurality of elastic plates. The base plate has a through hole in the middle for the tapered tie rod to pass through. The plurality of elastic plates are arranged axially along the through hole. The upper part of the plurality of elastic plates is bent outward to form an inclined conical surface. The inclined conical surface fits into the conical surface of the tapered tie rod.

[0011] Preferably, the base plate, the plurality of elastic sheets, and the plurality of tensioning edges are integrally formed.

[0012] Preferably, there are two clamping components, which are arranged opposite to each other on both sides of the worktable.

[0013] Preferably, the clamping assembly includes a first mounting base, a second linear drive unit disposed on the first mounting base, and a pressure rod disposed on the output shaft of the second linear drive unit.

[0014] Preferably, it further includes a side positioning component, the side positioning component including a second mounting base, a third linear drive unit disposed on the second mounting base, and a positioning block disposed on the output shaft of the third linear drive unit, the third linear drive unit being used to drive the positioning block to move toward the side of the front cover of the motor.

[0015] Preferably, the side of the positioning block is provided with a positioning groove that matches the ear plate of the front cover of the motor.

[0016] Preferably, a buffer pad is provided on the inner sidewall of the positioning groove.

[0017] Preferably, the workbench includes a top plate and two legs symmetrically arranged at the bottom of the top plate.

[0018] The automatic positioning fixture for the motor front cover machining center described in this utility model has the advantage that, through the cooperation of the center positioning component and the clamping component, the motor front cover is automatically positioned from the middle to the side without manual operation, resulting in accurate positioning and less time, thus improving production efficiency and product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic positioning fixture for the motor front cover machining center described in this utility model;

[0020] Figure 2 This is a schematic diagram of the automatic positioning fixture for the motor front cover machining center and the installation of the motor front cover according to this utility model;

[0021] Figure 3 This is a cross-sectional view of the automatic positioning fixture for the machining center of the electric motor front cover described in this utility model;

[0022] Figure 4 This is a schematic diagram of the external support structure described in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1 workbench, 11 top plates, 12 legs;

[0025] 2. Support section;

[0026] 3. Center positioning component, 31. First linear drive unit, 32. Conical tie rod, 33. External support, 331. Base plate, 332. Elastic sheet, 333. Tightening edge;

[0027] 4 clamping assembly, 41 first mounting base, 42 second linear drive unit, 43 pressure rod;

[0028] 5. Side positioning assembly, 51. Second mounting base, 52. Third linear drive unit, 53. Positioning block, 531. Positioning groove. Detailed Implementation

[0029] like Figure 1-4 As shown, the automatic positioning fixture for the motor front cover machining center disclosed in this embodiment includes a worktable 1, a support 2, a center positioning component 3, and a clamping component 4. The support 2 is disposed on the top of the worktable 1, supporting the edge of the motor front cover and forming an accommodating space together with the worktable 1. The center positioning component 3 is disposed on the top of the worktable 1 and located in the center of the accommodating space, used to position the bearing holes of the motor front cover. The clamping component 4 is disposed on the worktable 1 and used to clamp the motor front cover onto the support 2.

[0030] In this embodiment, the automatic positioning fixture for the motor front cover machining center is used by first placing the motor front cover on the support 2, at which point the bearing hole is aligned with the center positioning component 3. Then, the clamping component 4 is activated to press down and clamp the motor front cover. The center positioning component 3 then positions the bearing hole of the motor front cover, achieving automatic centering and ensuring the concentricity of the bearing hole. After positioning, the motor front cover can be directly machined. The entire process requires no manual positioning, is simple to operate, highly automated, and improves production efficiency and product quality. This achieves automatic centering and ensures the concentricity of the workpiece's shape and inner hole.

[0031] In this embodiment, the workbench 1 includes a top plate 11 and two legs 12 symmetrically arranged at the bottom of the top plate 11. The support part 2 and the center positioning component 3 are both mounted on the top plate 11. The legs 12 support the top plate to facilitate installation and to provide a certain height for the top plate 11, which facilitates the installation of the first linear drive part 32 of the center positioning component 3. The support part 2 is a support ring with the same diameter as the front cover of the motor, and the support ring has a certain thickness to support the edge of the front cover of the motor.

[0032] Please refer to Figures 1-3 The center positioning component 3 includes a first linear drive unit 31 located at the bottom of the worktable 1, a tapered pull rod 32 connected to the output shaft of the first linear drive unit 31, and an outer support member 33 located at the top of the worktable 1. The tapered pull rod 32 is fitted inside the outer support member 33. When the tapered pull rod 32 moves, it can drive the outer support member 33 to open outwards and thus tighten the bearing hole of the motor front cover for positioning. In this embodiment, the center line of the tapered pull rod 32 is collinear with the center line of the bearing hole, and the tapered pull rod 32 extends upwards out of the bearing hole with its tapered surface facing downwards. During positioning, the bearing hole can be directly fitted onto the tapered pull rod 31, and then the first linear drive unit 31 can be activated to drive the tapered pull rod 32 downwards and thus open the outer support member 33, causing the outer support member 33 to open outwards and tighten the bearing hole, thereby positioning the motor front cover. The operation is simple and quick.

[0033] Please refer to Figure 4 The outer support 33 includes a base plate 331 mounted on the top of the workbench 1, multiple elastic plates 332 mounted on the base plate 331, and multiple tensioning edges 333 mounted on the multiple elastic plates 332. The base plate 331 has a through hole in its center for the tapered tie rod 32 to pass through. The multiple elastic plates 332 are axially arranged along the through hole, and the upper parts of the multiple elastic plates 332 are bent outwards to form a sloping conical surface, which fits into the conical surface of the tapered tie rod 32. When the tapered tie rod 32 moves downwards, the two conical surfaces press against each other, causing the multiple elastic plates 332 to expand outwards, and the tensioning edges 333 to press against the edge of the bearing hole to position the front cover of the motor. When positioning is not required, the first linear drive unit 31 drives the tapered tie rod 32 upwards until the two conical surfaces disengage, at which point the elastic plates 332 return to their original position under their own elasticity. Preferably, the base plate 331, multiple elastic sheets 332, and multiple supporting edges 333 are integrally formed. This integrally formed structure has no splicing points or connections, reducing weak points caused by welding or bolt connections, resulting in higher overall strength and making it less prone to loosening or deformation during long-term use, thus improving stability. Furthermore, the base plate 331 has multiple through holes, and the top plate 11 has multiple threaded holes. The through holes and threaded holes are opposite each other; during fixing, screws are passed through the through holes and corresponding threaded holes to secure the outer support member 33.

[0034] In this embodiment, two clamping components 4 are provided, which are arranged opposite each other on both sides of the worktable 1, thereby improving the stability of the motor front cover positioning. Specifically, the clamping component 4 includes a first mounting base 41, a second linear drive unit 42 disposed on the first mounting base 41, and a pressure rod 43 disposed on the output shaft of the second linear drive unit 42. When clamping is required, the second linear drive unit 42 drives the pressure rod 43 to move downward to clamp the edge of the motor front cover, making the operation simple and convenient.

[0035] The automatic positioning fixture for the motor front cover machining center in this embodiment also includes a side positioning component 5. The side positioning component 5 includes a second mounting base 51, a third linear drive unit 52 mounted on the second mounting base 51, and a positioning block 53 mounted on the output shaft of the third linear drive unit 52. The third linear drive unit 52 drives the positioning block 53 to move towards the side of the motor front cover. In practical use, the third linear drive unit 52 drives the positioning block 53 to approach the side of the motor front cover, thereby positioning the clamping direction of the motor front cover to be processed, facilitating subsequent processing. The side of the positioning block 53 is provided with a positioning groove 531 that matches the ear plate of the motor front cover. When different clamping directions are required, the positioning groove 531 can be matched with different ear plates. By fitting the positioning groove 531 against the ear plate, the positioning stability is further improved. The inner wall of the positioning groove 531 is provided with a buffer pad, which converts the hard friction between the positioning block 53 and the ear plate into soft friction, reducing damage to the motor front cover caused by the positioning block 53. Of course, buffer pads can be installed on the pressure rod 43 and the tensioning edge 333 to further ensure the integrity of the motor front cover and prevent scratches. The buffer pads can be rubber pads.

[0036] In summary, the automatic positioning fixture for the motor front cover machining center in this embodiment automatically positions the motor front cover from the middle to the side through the cooperation of the center positioning component 3 and the clamping component 4. No manual operation is required, the positioning is accurate and time is short, thus improving production efficiency and product quality.

[0037] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. An automatic positioning fixture for a machining center of an electric motor front cover, characterized in that, include: Workbench (1); Support (2), the support (2) is disposed on the top of the workbench (1), the support (2) supports the edge of the front cover of the motor and together with the workbench (1) forms an accommodating space; A center positioning component (3) is disposed on the top of the workbench (1) and located in the middle of the accommodating space, for positioning the bearing hole of the motor front cover; A clamping assembly (4) is disposed on the workbench (1) and is used to clamp the front cover of the motor onto the support (2).

2. The automatic positioning fixture for the motor front cover machining center according to claim 1, characterized in that, The center positioning component (3) includes a first linear drive unit (31) disposed at the bottom of the workbench (1), a tapered pull rod (32) connected to the output shaft of the first linear drive unit (31), and an outer support member (33) disposed at the top of the workbench (1). The tapered pull rod (32) is sleeved inside the outer support member (33). When the tapered pull rod (32) moves, it can drive the outer support member (33) to open outward and then tighten the bearing hole of the motor front cover for positioning.

3. The automatic positioning fixture for the motor front cover machining center according to claim 2, characterized in that, The external support member (33) includes a base plate (331) disposed on the top of the workbench (1), a plurality of elastic plates (332) disposed on the base plate (331), and a plurality of tensioning edges (333) disposed on the plurality of elastic plates (332). The base plate (331) has a through hole in the middle for the tapered tie rod (32) to pass through. The plurality of elastic plates (332) are arranged axially along the through hole. The upper part of the plurality of elastic plates (332) is bent outward to form an inclined conical surface. The inclined conical surface and the conical surface of the tapered tie rod (32) fit together.

4. The automatic positioning fixture for the motor front cover machining center according to claim 3, characterized in that, The base plate (331), the plurality of elastic sheets (332), and the plurality of supporting edges (333) are integrally formed.

5. The automatic positioning fixture for the motor front cover machining center according to claim 1, characterized in that, Two clamping components (4) are provided, and the two clamping components (4) are arranged opposite to each other on both sides of the worktable (1).

6. The automatic positioning fixture for the motor front cover machining center according to claim 1, characterized in that, The clamping assembly (4) includes a first mounting base (41), a second linear drive unit (42) disposed on the first mounting base (41), and a pressure rod (43) disposed on the output shaft of the second linear drive unit (42).

7. The automatic positioning fixture for the machining center of the electric motor front cover according to any one of claims 1-6, characterized in that, It also includes a side positioning component (5), which includes a second mounting base (51), a third linear drive unit (52) disposed on the second mounting base (51), and a positioning block (53) disposed on the output shaft of the third linear drive unit (52). The third linear drive unit (52) is used to drive the positioning block (53) to move toward the side of the front cover of the motor.

8. The automatic positioning fixture for the motor front cover machining center according to claim 7, characterized in that, The side of the positioning block (53) is provided with a positioning groove (531) that matches the ear plate of the front cover of the motor.

9. The automatic positioning fixture for the machining center of the electric motor front cover according to claim 8, characterized in that, A buffer pad is provided on the inner side wall of the positioning groove (531).

10. The automatic positioning fixture for the machining center of the electric motor front cover according to any one of claims 1-6, characterized in that, The workbench (1) includes a top plate (11) and two legs (12) symmetrically arranged at the bottom of the top plate (11).

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