Finish turning clamp for inner shell of thin-wall motor

Abstract

The utility model relates to a thin-wall motor inner shell finish turning clamp which comprises a base, a plurality of positioning grooves are formed in the upper surface of the base, positioning blocks are fixedly connected into the positioning grooves, a plurality of pressing structures are fixedly connected to the edge of the upper surface of the base, and the pressing structures and the positioning grooves are arranged in a staggered mode. A positioning ring is fixedly connected to the center of the upper surface of the base, a plurality of connecting blocks are integrally formed at the edge of the lower surface of the positioning ring, a groove is formed in the center of the lower surface of each connecting block, and the positioning blocks are located in the grooves; according to the utility model, redundant debugging steps are not needed, positioning operation can be realized by directly inserting the convex ring below the motor shell into the positioning ring, and compared with a traditional positioning debugging mode, the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture devices, and specifically relates to a precision turning fixture for the inner shell of a thin-walled motor. Background Art

[0002] During the turning process of the inner shell of a thin-walled motor, the last step requires precision turning. When processing, the inner shell of the thin-walled motor needs to be clamped by a fixture. In order to avoid deformation and vibration of the workpiece during processing, it is necessary to clamp and adjust the clamping position of the workpiece multiple times, which consumes a lot of time and results in low processing efficiency. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a precision turning fixture for the inner shell of a thin-walled motor to solve the traditional problems.

[0004] A precision turning fixture for the inner shell of a thin-walled motor of the utility model includes a base. A plurality of positioning grooves are opened on the upper surface of the base. Positioning blocks are fixedly connected in the positioning grooves. A plurality of pressing structures are fixedly connected to the edge of the upper surface of the base. The pressing structures and the positioning grooves are arranged in an alternating manner. A positioning ring is fixedly connected to the central position of the upper surface of the base. A plurality of connecting blocks are integrally formed at the edge of the lower surface of the positioning ring. A groove is opened at the center of the lower surface of the connecting block. The positioning block is located inside the groove.

[0005] As a further improvement of the utility model, the pressing structure includes a fixing plate. A first connection hole is opened in the middle of the fixing plate. A first screw hole is opened on the upper surface of the base corresponding to the first connection hole. A first bolt is arranged between the first connection hole and the first screw hole.

[0006] As a further improvement of the utility model, a fixing sleeve is fixedly connected to one side of the fixing plate. A screw rod is fixedly inserted inside the fixing sleeve. The top end of the screw rod passes through the upper surface of the fixing sleeve and is inserted with a pressing block. A pressing nut is arranged at the position of the screw rod above the pressing block.

[0007] As a further improvement of the utility model, a gap is left between two adjacent connecting blocks. The fixing plate is located in this gap.

[0008] As a further improvement of the utility model, a plurality of second connection holes are opened on the upper surface of the positioning ring. A second screw hole is opened on the upper surface of the base corresponding to the second connection hole. A second bolt is arranged between the second screw hole and the second connection hole.

[0009] As a further improvement of the utility model, the lower surface of the pressing block is located above the upper surface of the positioning ring.

[0010] As a further improvement of the present utility model, limiting blocks are integrally formed on both side surfaces of the positioning block, limiting grooves are opened at positions on both sides of the inner wall of the positioning groove corresponding to the limiting blocks, and the limiting blocks are inserted into the limiting grooves.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By arranging a positioning ring above the base in the present utility model, the upper surface of the positioning ring can support the flange of the motor housing, enabling the motor housing to be placed on the upper surface of the positioning ring, and the inner wall of the positioning ring can fit with the outer wall of the convex ring at the lower end of the flange, realizing precise positioning of the installation position of the motor housing on the device. Without redundant debugging steps, the convex ring below the motor housing can be directly inserted into the positioning ring to complete the positioning operation. Compared with the traditional positioning and debugging method, the working efficiency is greatly improved.

[0013] 2. By installing a plurality of pressing structures on the base in the present utility model, in cooperation with the fixed sleeve, screw, pressing block, and nut arranged in the pressing structure, when the motor housing is stably placed on the upper surface of the positioning ring, the pressing block can be used to press and fix the upper surface of the flange by tightening the nut, ensuring that the motor housing does not shake during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0015] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

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

[0017] Figure 3 is a schematic connection relationship diagram of the positioning ring and the connecting block of the present utility model;

[0018] Figure 4 is a schematic connection relationship diagram of the clamping structure and the base of the present utility model;

[0019] Figure 5 is a schematic front sectional structure diagram when the motor housing is pressed by the present utility model;

[0020] Figure 6 is a schematic three-dimensional structure diagram of the inner housing of the existing motor;

[0021] Figure 7 is a schematic three-dimensional structure diagram when the inner housing of the motor is pressed by the present utility model.

[0022] In the figure: 1. Base; 2. Positioning groove; 3. First screw hole; 4. Second screw hole; 5. Fixed plate; 6. First connection hole; 7. Fixed sleeve; 8. Screw; 9. Pressing block; 10. Pressing nut; 11. Positioning block; 12. Positioning ring; 13. Connecting block; 14. Second connection hole; 15. Groove; 16. Gap; 17. Motor housing; 18. Flange end; 19. Convex ring. Specific embodiments

[0023] The following will disclose multiple embodiments of the present invention with reference to the drawings. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present invention. That is to say, in some embodiments of the present invention, these physical details are unnecessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0024] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the present technology, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present technology can be understood according to specific circumstances.

[0026] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0027] Please refer to Figure 1-7 , a precision turning fixture for the inner housing of a thin-walled motor of the present invention, includes a base 1. A plurality of positioning grooves 2 are provided on the upper surface of the base 1. A positioning block 11 is fixedly connected in the positioning groove 2. A plurality of pressing structures are fixedly connected to the edge of the upper surface of the base 1. A positioning ring 12 is fixedly connected to the central position of the upper surface of the base 1.

[0028] In a preferred embodiment, the number of the above-mentioned positioning grooves 2 is three, and the three positioning grooves 2 are annularly and equidistantly distributed on the upper surface of the base 1. The number of the pressing structures is also three, and the three pressing structures are also annularly and equidistantly distributed on the upper surface of the base 1 and are staggered with the positioning grooves 2.

[0029] Specifically, the pressing structure includes a fixing plate 5. A first connection hole 6 is opened in the middle of the fixing plate 5. A first screw hole 3 is opened on the upper surface of the base 1 at a position corresponding to the first connection hole 6. A first bolt is arranged between the first connection hole 6 and the first screw hole 3. One side of the fixing plate 5 is fixedly connected with a fixed sleeve 7. A screw rod 8 is fixedly inserted into the inside of the fixed sleeve 7. The top end of the screw rod 8 passes through the upper surface of the fixed sleeve 7 and is inserted with a pressing block 9. A pressing nut 10 is arranged at the position of the screw rod 8 above the pressing block 9. The lower surface of the pressing block 9 is above the upper surface of the positioning ring 12.

[0030] Please refer to Figure 6 , the existing inner housing of the motor mainly includes a motor housing 17, a flange end 18 and a convex ring 19. The flange end 18 is located at a position close to the end of the motor housing 17, and the convex ring 19 is located below the flange end 18.

[0031] In summary, when using this device to clamp and fix the inner housing of the motor, first turn each pressing block 9 to the side position, then turn the flange end 18 of the motor housing 17 downward, and insert the convex ring 19 at the lower end of the motor housing 17 into the positioning ring 12, so that the outer edge of the convex ring 19 fits against the inner wall of the positioning ring 12. At this time, the lower surface of the flange end 18 is placed on the upper surface of the positioning ring 12 and cannot move horizontally anymore;

[0032] Then the staff turns each pressing block 9 to the upper surface of the flange end 18, and then tightens the nuts above each pressing block 9, so that the pressing block 9 presses the flange end 18, and the positioning and clamping of the inner housing of the motor can be completed.

[0033] In some other embodiments, a plurality of connecting blocks 13 are integrally formed at the edge of the lower surface of the positioning ring 12. A groove 15 is opened in the center of the lower surface of the connecting block 13. The positioning block 11 is located inside the groove 15. The distance between adjacent two connecting blocks 13 is equal and there is a gap 16 left. The fixing plate 5 is located in the gap 16.

[0034] By means of the groove 15 opened on the lower surface of the connecting block 13 and the gap 16 left between adjacent two connecting blocks 13, the positioning block 11 and the fixing plate 5 can be respectively inserted into the groove 15 and the gap 16, so that the positioning ring 12 can be flatly installed on the upper surface of the base 1.

[0035] In some other embodiments, a plurality of second connection holes 14 are formed in the upper surface of the positioning ring 12, and second screw holes 4 are formed in the upper surface of the base 1 at positions corresponding to the second connection holes 14. A second bolt is provided between the second screw holes 4 and the second connection holes 14.

[0036] By means of the second connection holes 14 provided on the positioning ring 12 and in cooperation with the second screw holes 4 provided on the upper surface of the base 1, it is convenient for the staff to disassemble and install the positioning ring 12 and facilitate the replacement of positioning rings 12 of different models.

[0037] In some other embodiments, limiting blocks are integrally formed on both side surfaces of the positioning block 11, and limiting grooves are formed on both sides of the inner wall of the positioning groove 2 at positions corresponding to the limiting blocks. The limiting blocks are inserted into the interiors of the limiting grooves, which facilitates the installation of the positioning block 11.

[0038] The above are only the embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A precision turning fixture for the inner housing of a thin-walled motor, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a plurality of positioning grooves (2), and positioning blocks (11) are fixedly connected in the positioning grooves (2). A plurality of pressing structures are fixedly connected to the edge of the upper surface of the base (1), and the pressing structures are arranged in a staggered manner with the positioning grooves (2). A positioning ring (12) is fixedly connected to the central position of the upper surface of the base (1). A plurality of connecting blocks (13) are integrally formed at the edge of the lower surface of the positioning ring (12). A groove (15) is formed in the center of the lower surface of the connecting block (13), and the positioning block (11) is located inside the groove (15).

2. The precision turning fixture for the thin-wall motor inner housing according to claim 1, wherein: The pressing structure includes a fixing plate (5). A first connection hole (6) is formed in the middle of the fixing plate (5). A first screw hole (3) is formed in the upper surface of the base (1) corresponding to the first connection hole (6). A first bolt is arranged between the first connection hole (6) and the first screw hole (3).

3. A precision turning fixture for the inner housing of a thin-walled motor according to claim 2, characterized in that: A fixing sleeve (7) is fixedly connected to one side of the fixing plate (5). A screw rod (8) is fixedly inserted into the fixing sleeve (7). The top end of the screw rod (8) passes through the upper surface of the fixing sleeve (7) and is inserted with a pressing block (9). A pressing nut (10) is arranged at the position of the screw rod (8) above the pressing block (9).

4. A precision turning fixture for the inner housing of a thin-walled motor according to claim 2, characterized in that: A gap (16) is left between two adjacent connecting blocks (13), and the fixing plate (5) is located in the gap (16).

5. A precision turning fixture for the inner housing of a thin-walled motor according to claim 1, characterized in that: A plurality of second connection holes (14) are formed in the upper surface of the positioning ring (12). A second screw hole (4) is formed in the upper surface of the base (1) corresponding to the second connection hole (14). A second bolt is arranged between the second screw hole (4) and the second connection hole (14).

6. A precision turning fixture for the inner housing of a thin-walled motor according to claim 3, characterized in that: The lower surface of the pressing block (9) is located above the upper surface of the positioning ring (12).

7. A precision turning fixture for the inner housing of a thin-walled motor according to claim 1, characterized in that: Limiting blocks are integrally formed on both side surfaces of the positioning block (11). Limiting grooves are formed at positions on both sides of the inner wall of the positioning groove (2) corresponding to the limiting blocks, and the limiting blocks are inserted into the limiting grooves.

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