A shaft surface knurling device for a motor shaft

Abstract

The utility model discloses an axial knurling device for a motor shaft, comprising a base, a moving block and a mounting plate are arranged on the top of the base, a through hole for rotating the motor shaft body is opened inside the mounting plate, a connecting block is arranged on the side wall of the mounting plate, a front clamping device is arranged on the top of the connecting block, a supporting plate is arranged on the top of the moving block, a knurling assembly and an electric push rod are arranged on the top of the supporting plate, a rear clamping assembly is arranged on the telescopic end of the electric push rod, and the rear clamping assembly comprises a U-shaped frame, through which the other end of the motor shaft body can be placed inside the U-shaped frame, and then the positioning screw is rotated to drive the limit block and the second clamping block to move, so that the other end of the motor shaft body can be clamped, so as to avoid shaking and deviation of the motor shaft body during knurling, and then the rollers inside the U-shaped frame and the second clamping block can be used to make the motor shaft body more smooth when rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shaft processing devices, in particular to a shaft surface knurling device for a motor shaft. Background Art

[0002] The knurling process is a mechanical process for rolling patterns on the handles or other working surfaces of metal products. It is mainly used for anti-slip. At present, the knurling process is also commonly used in the production of motor shafts. The motor shaft is knurled to form a knurled shaft, which facilitates the connection between the motor shaft and nesting components.

[0003] A Chinese patent (publication number CN218228474U) discloses a shaft surface knurling device for motor shaft processing, including a base, a motor shaft body and a clamping part, wherein the clamping part includes: a rotating disk: two accommodating plates are fixed on one side of the outer wall; a positive and negative threaded rod: it is movably connected between the two accommodating plates; a guide rod: it is fixed between the two accommodating plates by a pin, and the outer wall of the guide rod slides to connect with two rectangular seats; a bent pipe: it is welded to the outer wall of the top of the rectangular seat, and a U-shaped frame is welded on the outer wall of one side of the bent pipe. The utility model can make the two U-shaped frames move simultaneously in opposite directions by rotating the positive and negative threaded rods, so that the motor shaft bodies with different outer diameters can be clamped and fixed by the clamping roller, thereby ensuring the stability of the motor shaft body during the knurling process, and the motor shaft body can be driven to rotate by the drive motor, so that the knurling wheel can be used to knurl different positions of the outer wall of the motor shaft body.

[0004] The above-mentioned device utilizes a hydraulic cylinder and a knurling wheel to perform knurling on the motor shaft body. However, when in use, the device only clamps one end of the motor shaft body, while the other end is not supported or clamped. When the hydraulic cylinder is working, it drives the knurling wheel to squeeze the surface of the motor shaft body, which can easily cause the motor shaft body to shake and deviate during knurling, resulting in the inability to complete the knurling process. Utility Model Content

[0005] In view of the above problems, a motor shaft surface knurling device is provided. The other end of the motor shaft body can be placed inside the U-shaped frame, and then the positioning screw is rotated to drive the limit block and the second clamping block to move, so as to clamp the other end of the motor shaft body to prevent the motor shaft body from shaking and deflecting during knurling. Then, the U-shaped frame and the rollers inside the second clamping block can be used to make the motor shaft body smoother when rotating.

[0006] In order to solve the problems of the prior art, the utility model provides a knurling device for the shaft surface of a motor, comprising a base, a moving block and a mounting plate are arranged on the top of the base, a through hole for rotating the motor shaft body is opened inside the mounting plate, a connecting block is arranged on the side wall of the mounting plate, a front clamping device is arranged on the top of the connecting block, a supporting plate is arranged on the top of the moving block, a knurling assembly and an electric push rod are arranged on the top of the supporting plate, a rear clamping assembly is arranged at the telescopic end of the electric push rod, the rear clamping assembly comprises a U-shaped frame, a fixing block is arranged at the opening of the U-shaped frame, a threaded hole for installing a positioning screw is opened inside the fixing block, a limiting block is arranged at the bottom of the positioning screw through a bearing, and a second clamping block is arranged at the bottom of the limiting block.

[0007] Preferably, a limiting groove for the limiting block to move is provided inside the U-shaped frame.

[0008] Preferably, the knurling assembly comprises a cylinder, the telescopic portion of the cylinder is provided with a U-shaped frame, and a knurling wheel is rotatably provided inside the U-shaped frame.

[0009] Preferably, a mounting groove for installing an adjusting screw is provided on the surface of the base, a driving motor is provided on the side wall of the base, the output shaft of the driving motor is connected to the adjusting screw through a coupling, and a threaded hole matching the adjusting screw is provided at the bottom of the moving block.

[0010] Preferably, the front clamping device includes a hydraulic rod, which is arranged at the bottom of the connecting block, and a lower pressure block is arranged at the telescopic end of the hydraulic rod, and a connecting rod is symmetrically rotated at the bottom of the lower pressure block, and an L-shaped pressure rod is rotatably arranged at one end of the connecting rod, and a first clamping block is arranged at one end of the L-shaped pressure rod.

[0011] Preferably, telescopic rods are symmetrically arranged at the bottom of the connecting block, and the telescopic ends of the telescopic rods are connected to the L-shaped pressure rods.

[0012] Preferably, a ball bearing is arranged inside the first clamping block, and a roller is arranged inside the second clamping block and the U-shaped frame.

[0013] Preferably, the motor shaft body is driven by a servo motor.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The other end of the motor shaft body can be placed inside the U-shaped frame, and then the positioning screw is rotated to drive the limit block and the second clamping block to move, so as to clamp the other end of the motor shaft body to prevent the motor shaft body from shaking and deflecting during knurling. Then, the roller inside the U-shaped frame and the second clamping block can make the motor shaft body rotate more smoothly.

[0016] 2. The telescopic end of the hydraulic rod moves downward, driving the lower pressure block to move, and also driving the two L-shaped pressure rods to move inward or outward at the same time. The front end of the motor shaft body can be limited by the two first clamping blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The invention is a schematic diagram of the overall structure of a shaft surface knurling device for a motor shaft.

[0018] Figure 2 The present invention is a schematic diagram of the structure of a motor shaft surface knurling device viewed from above.

[0019] Figure 3 The present invention is a schematic structural diagram of a front clamping device in a shaft surface knurling device of a motor shaft.

[0020] Figure 4 The present invention is a schematic diagram of the enlarged structure of point A in the shaft surface knurling device of a motor shaft.

[0021] Figure 5 The present invention is a structural schematic diagram of a knurling assembly in a shaft surface knurling device of a motor shaft.

[0022] Figure 6 The present invention is a schematic structural diagram of a rear clamping component in a shaft surface knurling device of a motor shaft.

[0023] The numbers in the figure are: 1. base; 2. drive motor; 3. support plate; 4. motor shaft body; 5. U-shaped frame; 6. mounting plate; 7. adjusting screw; 8. connecting block; 9. cylinder; 10. L-shaped pressure rod; 11. hydraulic rod; 12. lower pressure block; 13. connecting rod; 14. telescopic rod; 15. first clamping block; 16. ball bearing; 17. electric push rod; 18. moving block; 19. U-shaped frame; 20. knurled wheel; 21. limit block; 22. positioning screw; 23. fixing block; 24. roller; 25. second clamping block. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figures 1 to 6 As shown, the utility model provides:

[0026] A motor shaft surface knurling device comprises a base 1, a moving block 18 and a mounting plate 6 are arranged on the top of the base 1, a through hole for allowing a motor shaft body 4 to rotate is provided inside the mounting plate 6, a connecting block 8 is provided on the side wall of the mounting plate 6, a front clamping device is provided on the top of the connecting block 8, a support plate 3 is provided on the top of the moving block 18, a knurling assembly and an electric push rod 17 are provided on the top of the support plate 3, a rear clamping assembly is provided at the telescopic end of the electric push rod 17, the rear clamping assembly comprises a U-shaped frame 5, a fixing block 23 is provided at the opening of the U-shaped frame 5, a threaded hole for installing a positioning screw 22 is provided inside the fixing block 23, a limiting block 21 is provided at the bottom of the positioning screw 22 through a bearing, and a second clamping block 25 is provided at the bottom of the limiting block 21.

[0027] The other end of the motor shaft body 4 can be placed inside the U-shaped frame 5, and then the positioning screw 22 is rotated to drive the limit block 21 and the second clamping block 25 to move, so as to clamp the other end of the motor shaft body 4 to prevent the motor shaft body 4 from shaking and deflecting during knurling.

[0028] like Figure 6 As shown, a limiting groove is provided inside the U-shaped frame 5 for the limiting block 21 to move.

[0029] The limiting groove is used to prevent the limiting block 21 from being displaced during the movement.

[0030] like Figure 5 As shown, the knurling assembly includes a cylinder 9, a U-shaped frame 19 is arranged for telescopic operation of the cylinder 9, and a knurling wheel 20 is arranged for rotation inside the U-shaped frame 19.

[0031] The outer wall of the motor shaft body 4 can be knurled by the knurling wheel 20 .

[0032] like Figure 1 As shown, a mounting groove for installing the adjusting screw 7 is provided on the surface of the base 1, a driving motor 2 is provided on the side wall of the base 1, the output shaft of the driving motor 2 is connected to the adjusting screw 7 through a coupling, and a threaded hole adapted to the adjusting screw 7 is provided at the bottom of the moving block 18.

[0033] The position of the moving block 18 can be adjusted by using the driving motor 2 in cooperation with the driving motor 2, so that the knurling work on the motor shaft body 4 of different lengths can be performed conveniently.

[0034] like Figure 3 As shown, the front clamping device includes a hydraulic rod 11, which is arranged at the bottom of the connecting block 8. A lower pressure block 12 is arranged at the telescopic end of the hydraulic rod 11, and a connecting rod 13 is symmetrically rotated at the bottom of the lower pressure block 12. An L-shaped pressure rod 10 is rotatably arranged at one end of the connecting rod 13, and a first clamping block 15 is arranged at one end of the L-shaped pressure rod 10.

[0035] The telescopic end of the hydraulic rod 11 moves downward, driving the lower pressing block 12 to move, and also driving the two L-shaped pressing rods 10 to move inward or outward at the same time. The front end of the motor shaft body 4 can be limited by the two first clamping blocks 15.

[0036] like Figure 3 As shown, telescopic rods 14 are symmetrically arranged at the bottom of the connecting block 8 , and the telescopic ends of the telescopic rods 14 are connected to the L-shaped pressure rods 10 .

[0037] The telescopic rod 14 makes the L-shaped pressure rod 10 more stable when moving.

[0038] like Figure 4 and Figure 6 As shown, a ball 16 is disposed inside the first clamping block 15 , and a roller 24 is disposed inside both the second clamping block 25 and the U-shaped frame 5 .

[0039] The ball bearing 16 and the roller 24 can make the motor shaft body 4 rotate more smoothly.

[0040] like Figure 1 As shown, the motor shaft body 4 is driven by a servo motor.

[0041] The servo motor can be used to drive the motor shaft body 4 to rotate, making it easier for the knurling wheel 20 to work.

[0042] The above embodiments only express a motor shaft knurling device or several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A motor shaft surface knurling device, characterized in that: The invention comprises a base (1), wherein a moving block (18) and a mounting plate (6) are arranged on the top of the base (1), a through hole for allowing a motor shaft body (4) to rotate is provided inside the mounting plate (6), a connecting block (8) is provided on the side wall of the mounting plate (6), a front clamping device is provided on the top of the connecting block (8), a supporting plate (3) is provided on the top of the moving block (18), a knurling assembly and an electric push rod (17) are provided on the top of the supporting plate (3), a rear clamping assembly is provided at the telescopic end of the electric push rod (17), the rear clamping assembly comprises a U-shaped frame (5), a fixing block (23) is provided at the opening of the U-shaped frame (5), a threaded hole for mounting a positioning screw (22) is provided inside the fixing block (23), a limiting block (21) is provided at the bottom of the positioning screw (22) through a bearing, and a second clamping block (25) is provided at the bottom of the limiting block (21).

2. The motor shaft surface knurling device according to claim 1, characterized in that: The U-shaped frame (5) is provided with a limiting groove inside for the limiting block (21) to move.

3. The motor shaft surface knurling device according to claim 2, characterized in that: The knurling assembly comprises a cylinder (9), the cylinder (9) is telescopically provided with a U-shaped frame (19), and a knurling wheel (20) is rotatably provided inside the U-shaped frame (19).

4. The motor shaft knurling device according to claim 1, characterized in that: The surface of the base (1) is provided with a mounting groove for mounting an adjusting screw (7); a driving motor (2) is provided on a side wall of the base (1); an output shaft of the driving motor (2) is connected to the adjusting screw (7) via a coupling; and a threaded hole matching the adjusting screw (7) is provided at the bottom of the moving block (18).

5. The motor shaft knurling device according to claim 1, characterized in that: The front clamping device comprises a hydraulic rod (11), wherein the hydraulic rod (11) is arranged at the bottom of the connecting block (8), a lower pressing block (12) is arranged at the telescopic end of the hydraulic rod (11), a connecting rod (13) is symmetrically rotatably arranged at the bottom of the lower pressing block (12), an L-shaped pressing rod (10) is rotatably arranged at one end of the connecting rod (13), and a first clamping block (15) is arranged at one end of the L-shaped pressing rod (10).

6. The motor shaft surface knurling device according to claim 1, characterized in that: Telescopic rods (14) are symmetrically arranged at the bottom of the connection block (8), and the telescopic ends of the telescopic rods (14) are connected to the L-shaped pressure rod (10).

7. The motor shaft surface knurling device according to claim 5, characterized in that: A ball bearing (16) is arranged inside the first clamping block (15), and a roller (24) is arranged inside the second clamping block (25) and the U-shaped frame (5).

8. The motor shaft surface knurling device according to claim 7, characterized in that: The motor shaft body (4) is driven by a servo motor.

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