Shaft machining positioning tool

Abstract

The utility model discloses a shaft machining and positioning tool, which relates to the technical field of shaft machining and positioning and comprises a base, a first clamping and positioning component and a second clamping and positioning component are arranged on the base, and the second clamping and positioning component is slidably arranged relative to the first clamping and positioning component. The first clamping and positioning assembly and the second clamping and positioning assembly each comprise a supporting plate, a first cavity is formed in each supporting plate, a rotating disc is rotationally connected into each first cavity, two clamping blocks sliding relatively are arranged in each second cavity, and the outer wall of one side, in the axis direction, of each rotating disc is sleeved with a first gear ring. The two supporting plates are each provided with three locking assemblies, the three locking assemblies are arranged on the sides, close to the first gear ring, of the supporting plates in the axis direction of the first cavity, each locking assembly comprises a second gear ring, a gear of the second gear ring is meshed with a gear of the first gear ring, and a cylinder is rotationally connected to an inner ring of the second gear ring. The device can improve the accuracy and stability of shaft machining and positioning.

Description

Technical Field

[0001] This utility model relates to the field of shaft machining positioning technology, specifically a shaft machining positioning fixture. Background Technology

[0002] A shaft is a cylindrical object that passes through the middle of a bearing, wheel, or gear, although some are square. A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is generally a metal rod, and different sections can have different diameters. Parts that rotate in a machine are mounted on the shaft. When machining a shaft, tooling is needed to fix it in place. Some shafts have holes or grooves, and during machining, the holes or grooves are used as reference points for corresponding machining.

[0003] The authorization announcement number CN217530602U discloses a positioning fixture for shaft machining, including a base. The bottom of the base is fixedly connected to four sets of hydraulic telescopic rods, and the top of the four sets of hydraulic telescopic rods is fixedly connected to a top plate. A motor and a stabilizing plate are fixedly connected to both sides of the top plate, respectively. The output shaft of the motor is fixedly connected to a lead screw, and the outer wall of the lead screw is threaded with two sets of sliding seats. The top of each set of sliding seats is fixedly connected to a clamping ring, and the inner side of each set of clamping rings is fixedly connected to a rubber pad.

[0004] Although this device can perform the function of center positioning and clamping of the shaft, it cannot rotate and adjust the shaft, nor can it position and clamp shafts of different lengths and diameters. Therefore, it is necessary to design a shaft machining positioning fixture that can improve the accuracy and stability of shaft machining positioning. Utility Model Content

[0005] The purpose of this utility model is to provide a shaft machining positioning fixture to address the shortcomings of existing technologies and solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a shaft machining positioning fixture, including a base, on which a clamping positioning component one and a clamping positioning component two are provided. The clamping positioning component two is slidably disposed relative to the clamping positioning component one. Both the clamping positioning component one and the clamping positioning component two include a support plate. A cavity one is opened on the support plate. A turntable is rotatably connected in the cavity one. Two relatively sliding clamping blocks are disposed in the cavity two. A gear ring one is sleeved on one outer wall of the turntable along the axial direction. Three locking components are provided on both support plates. The three locking components are disposed on the side of the support plate along the axial direction of the cavity one, close to the gear ring one. Each locking component includes a gear ring two. The gear of the gear ring two meshes with the gear of the gear ring one. A cylinder is rotatably connected to the inner ring of the gear ring two. The cylinder is fixedly connected to the support plate. Several electromagnetic blocks are embedded on the outer circumferential surface of the cylinder that contacts the gear ring two.

[0007] This utility model further illustrates that two hydraulic telescopic cylinders are provided on the side of each of the two clamping blocks that are far apart from each other. The two hydraulic telescopic cylinders are arranged on both sides of the clamping block along the height direction of the cavity two. The fixed ends of the two hydraulic telescopic cylinders are fixedly connected to the inner wall of the cavity two, and the output ends of the two hydraulic telescopic cylinders are fixedly connected to the clamping block.

[0008] The present invention further describes that a circular hole is provided on the support plate, and a gear is provided on the side of the circular hole close to the gear ring along the axial direction. The gear is concentric with the circular hole, the gear is rotatably connected to the support plate, and the gear meshes with the gear ring.

[0009] The present invention further explains that a shaft hole is provided at the center of the gear one, a rotating shaft is inserted through the shaft hole, the inner wall of the shaft hole is in direct contact with the outer wall of the rotating shaft, and the rotating shaft passes through the circular hole one but is not in direct contact with the circular hole one.

[0010] The present invention further describes that both ends of the rotating shaft along the axial direction are rotatably connected to fixed blocks, the fixed blocks are fixedly connected to the base, one end of the rotating shaft along the axial direction passes through the fixed block and is provided with a drive motor, the fixed end of the drive motor is fixedly connected to the base, and the output end of the drive motor is concentrically fixedly connected to the rotating shaft.

[0011] The present invention further describes that the shaft hole of the first gear of the clamping and positioning component one is fixedly connected to the rotating shaft, the shaft hole of the first gear of the clamping and positioning component two is slidably connected to the rotating shaft, a limit groove is formed in the inner wall of the shaft hole of the first gear of the clamping and positioning component two, a limit strip is fixedly connected to the rotating shaft, and the limit strip is slidably connected to the limit groove.

[0012] The present invention further explains that a slider is fixedly connected to the support base of the second clamping and positioning component near the base, and a groove is provided on the base corresponding to the slider, and the slider cooperates with the groove.

[0013] This utility model further illustrates that the support plate of the second clamping and positioning component has a threaded hole, and a lead screw passes through the threaded hole. The lead screw is threadedly connected to the threaded hole. One end of the lead screw along the axial direction is rotatably connected to the support plate of the first clamping and positioning component. The end of the lead screw along the axial direction away from the first clamping and positioning component is rotatably connected to a connecting block. The connecting block is fixedly connected to the base. A second drive motor is provided on the side of the connecting block away from the lead screw. The fixed end of the second drive motor is fixedly connected to the base. The end of the lead screw along the axial direction away from the first clamping and positioning component passes through the connecting block and is fixedly connected to the output end of the second drive motor.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model, by setting a clamping and positioning component one and a sliding clamping and positioning component two, can position and clamp shafts of different lengths.

[0015] By setting clamping blocks to position and clamp shafts of different diameters, and by setting a rotatable turntable to rotate and adjust the shaft's positioning, stability and accuracy of shaft positioning and clamping are achieved. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the two-part disassembled structure of the clamping and positioning component of this utility model;

[0019] Figure 3 This is a schematic diagram of the relevant structure of the lead screw of this utility model;

[0020] In the diagram: 1. Base; 2. Clamping and positioning component one; 3. Clamping and positioning component two; 4. Support plate; 5. Cavity one; 6. Turntable; 7. Cavity two; 8. Clamping block; 9. Hydraulic telescopic cylinder; 10. Gear ring one; 11. Circular hole one; 12. Gear one; 13. Shaft hole; 14. Rotating shaft; 15. Fixing block; 16. Drive motor one; 17. Limiting groove; 18. Limiting strip; 19. Slider; 20. Slide groove one; 21. Threaded hole; 22. Lead screw; 23. Connecting block; 24. Drive motor two; 25. Locking component; 26. Gear ring two; 27. Cylinder; 28. Slide groove two. Detailed Implementation

[0021] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-3 The present invention provides a technical solution: a shaft machining positioning fixture, including a base 1, on which a clamping positioning component 2 and a clamping positioning component 3 are provided, the clamping positioning component 3 being slidably disposed relative to the clamping positioning component 2.

[0023] Both clamping and positioning component 1 2 and clamping and positioning component 2 3 include a support plate 4. The support plate 4 is vertically arranged and has a cavity 1 5. The cavity 1 5 is cylindrical 27. A turntable 6 is rotatably connected inside the cavity 1 5. A cavity 2 7 is opened at the center of the turntable 6. Two relative sliding clamping blocks 8 are arranged inside the cavity 2 7. The clamping blocks 8 are "V" shaped clamping blocks.

[0024] The cavity 27 has two corresponding grooves 28 on both sides of the clamping block 8 along the height direction, and the clamping block 8 slides in the groove 28.

[0025] Two hydraulic telescopic cylinders 9 are provided on the side of the two clamping blocks 8 that are far apart from each other. The two hydraulic telescopic cylinders 9 are horizontally arranged and are arranged on both sides of the clamping block 8 along the height direction of the cavity 2 7.

[0026] The fixed ends of the two hydraulic telescopic cylinders 9 are fixedly connected to the inner wall of the cavity 7, and the output ends of the two hydraulic telescopic cylinders 9 are fixedly connected to the clamping block 8. Thus, the clamping block 8 is driven to slide relative to each other by the hydraulic telescopic cylinders 9, thereby clamping and positioning the shaft inserted between the two clamping blocks 8.

[0027] A gear ring 10 is fitted on one side of the outer wall of the turntable 6 along the axial direction. A circular hole 11 is also provided on the support plate 4. A gear 12 is provided on the side of the circular hole 11 close to the gear ring 10 along the axial direction. The gear 12 is concentric with the circular hole 11. The gear 12 is rotatably connected to the support plate 4 and meshes with the gear ring 10.

[0028] A shaft hole 13 is provided at the center of gear 12, and a rotating shaft 14 is inserted through the shaft hole 13. The inner wall of the shaft hole 13 is in direct contact with the outer wall of the rotating shaft 14. The rotating shaft 14 passes through the round hole 11 but is not in direct contact with the round hole 11.

[0029] Both ends of the rotating shaft 14 along the axial direction are rotatably connected to the fixing blocks 15. The fixing blocks 15 are fixedly connected to the base 1. One end of the rotating shaft 14 along the axial direction passes through the fixing block 15 and is provided with a drive motor 16. The fixed end of the drive motor 16 is fixedly connected to the base 1. The output end of the drive motor 16 is concentrically fixedly connected to the rotating shaft 14, thereby driving the rotating shaft 14 to rotate through the drive motor 16. Furthermore, the gear transmission of the gear 12 and the gear ring 10 drives the turntable 6 to rotate, thereby causing the clamped shaft to rotate and completing the rotational positioning of the shaft.

[0030] Among them, the shaft hole 13 of the gear 12 of the clamping and positioning component 2 is fixedly connected to the rotating shaft 14, and the shaft hole 13 of the gear 12 of the clamping and positioning component 3 is slidably connected to the rotating shaft 14.

[0031] Among them, the inner wall of the shaft hole 13 of the gear 12 of the clamping and positioning component 2 3 is provided with a limiting groove 17, and a limiting strip 18 is fixedly connected to the rotating shaft 14. The limiting strip 18 is slidably connected to the limiting groove 17, and the limiting strip 18 cooperates with the limiting groove 17, thereby controlling the movement of the clamping and positioning component 2 3 according to the length of the shaft, thereby adjusting the distance between the clamping and positioning component 2 3 and the clamping and positioning component 2 2, and clamping and positioning shafts of different lengths.

[0032] A slider 19 is fixedly connected to the support base of the clamping and positioning component 2 3 on the side near the base 1. The slider 19 is dovetail shaped. The base 1 has a groove 20 corresponding to the slider 19. The slider 19 and the groove 20 cooperate to make the support base of the clamping and positioning component 2 3 slide along the groove 20.

[0033] The support plate 4 of the clamping and positioning component 2 3 has a threaded hole 21, and a lead screw 22 passes through the threaded hole 21. The lead screw 22 is threadedly connected to the threaded hole 21. One end of the lead screw 22 along the axial direction is rotatably connected to the support plate 4 of the clamping and positioning component 2. The end of the lead screw 22 away from the clamping and positioning component 2 along the axial direction is rotatably connected to a connecting block 23. The connecting block 23 is fixedly connected to the base 1. A drive motor 24 is provided on the side of the connecting block 23 away from the lead screw 22. The fixed end of the drive motor 24 is fixedly connected to the base 1. The end of the lead screw 22 away from the clamping and positioning component 2 along the axial direction passes through the connecting block 23 and is fixedly connected to the output end of the drive motor 24. Thus, the support plate 4 of the clamping and positioning component 2 3 is driven to move along the slide groove 20 by the drive motor 24.

[0034] Each of the two support plates 4 is provided with three locking components 25, which are located on the side of the support plate 4 near the gear ring 10 along the axis of the cavity 5.

[0035] The locking assembly 25 includes a second gear ring 26, the gears of which mesh with the gears of the first gear ring 10. The inner ring of the second gear ring 26 is rotatably connected to a cylinder 27, which is fixedly connected to the support plate 4. Several electromagnetic blocks are embedded on the outer circumferential surface of the cylinder 27 that contacts the second gear ring 26. The electromagnetic blocks are evenly distributed in a circle with the axis of the cylinder 27 as the center. The electromagnetic blocks are fixed on the cylinder 27 to magnetically fix the second gear ring 26.

[0036] When the shaft needs to be rotated and positioned, drive motor 16 is started. Drive motor 16 drives turntable 6 to rotate through gear transmission. During the rotation, the electromagnetic block is turned off, and gear ring 26 rotates with gear ring 10. After the rotation and positioning of the shaft is completed, drive motor 16 stops rotating and the electromagnetic block is energized to generate magnetic attraction. This causes the electromagnetic block to magnetically attract and fix gear ring 26, preventing it from rotating. This further restricts and fixes gear ring 10, and then locks and fixes turntable 6, thereby improving the stability after the shaft is rotated and positioned.

[0037] In this embodiment, according to the required length of the positioning shaft, the drive motor 24 is started, thereby driving the support plate 4 of the clamping positioning component 2 3 to slide relative to the clamping positioning component 2 along the slide groove 20, and adjusting the distance between the support plate 4 and the clamping positioning component 2.

[0038] Then, the shaft is inserted between the clamping blocks 8 of clamping and positioning component 1 2 and clamping and positioning component 2 3. At the same time, the output ends of the hydraulic telescopic cylinders 9 of clamping and positioning component 1 2 and clamping and positioning component 2 3 are extended, so that the two sets of clamping blocks 8 on clamping and positioning component 1 2 and clamping and positioning component 2 3 clamp the shaft on both sides along the axial direction, thereby achieving the effect of radial positioning and clamping of shafts of different diameters.

[0039] After radial clamping and positioning of the shaft, the drive motor 16 is started according to the position of the hole or groove on the shaft. The drive motor 16 drives the turntable 6 to rotate through gear transmission, so that the hole or groove on the shaft is rotated to a specific position to facilitate subsequent processing. Then the drive motor 16 is stopped, and the electromagnetic block is energized to generate magnetic attraction, so that the electromagnetic block magnetically attracts and fixes the gear ring 26. The gear ring 26 cannot rotate, and the gear ring 10 is further restricted and fixed. Then the turntable 6 is locked and fixed to improve the stability of the shaft after rotational positioning, thereby realizing the rotational positioning of the shaft.

[0040] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 limitations on this utility model.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shaft machining positioning fixture, characterized in that: Includes a base (1), on which a clamping and positioning component one (2) and a clamping and positioning component two (3) are provided. The clamping and positioning component two (3) is slidably disposed relative to the clamping and positioning component one (2). Both the clamping and positioning component one (2) and the clamping and positioning component two (3) include a support plate (4). A cavity one (5) is opened on the support plate (4). A turntable (6) is rotatably connected in the cavity one (5). A cavity two (7) is opened at the center of the turntable (6). Two relative sliding clamping blocks (8) are provided in the cavity two (7). The outer wall of one side of the turntable (6) along the axial direction is fitted with Gear ring one (10), and three locking components (25) are provided on both of the support plates (4). The three locking components (25) are located on the side of the support plate (4) close to gear ring one (10) along the axis of cavity one (5). The locking component (25) includes gear ring two (26). The gear of gear ring two (26) meshes with the gear of gear ring one (10). The inner ring of gear ring two (26) is rotatably connected to a cylinder (27). The cylinder (27) is fixedly connected to the support plate (4). Several electromagnetic blocks are embedded on the outer circumferential surface of the cylinder (27) that contacts gear ring two (26).

2. The shaft machining positioning fixture according to claim 1, characterized in that: Two hydraulic telescopic cylinders (9) are provided on the side of each of the two clamping blocks (8) that are far apart from each other. The two hydraulic telescopic cylinders (9) are arranged on both sides of the clamping block (8) along the height direction of the cavity two (7). The fixed ends of the two hydraulic telescopic cylinders (9) are fixedly connected to the inner wall of the cavity two (7), and the output ends of the two hydraulic telescopic cylinders (9) are fixedly connected to the clamping block (8).

3. The shaft machining positioning fixture according to claim 2, characterized in that: The support plate (4) has a circular hole (11) and a gear (12) is provided on the side of the circular hole (11) close to the gear ring (10) along the axial direction. The gear (12) is concentric with the circular hole (11) and is rotatably connected to the support plate (4). The gear (12) meshes with the gear ring (10).

4. The shaft machining positioning fixture according to claim 3, characterized in that: A shaft hole (13) is provided at the center of the gear (12), and a rotating shaft (14) is inserted through the shaft hole (13). The inner wall of the shaft hole (13) is in direct contact with the outer wall of the rotating shaft (14). The rotating shaft (14) passes through the circular hole (11) and is not in direct contact with the circular hole (11).

5. The shaft machining positioning fixture according to claim 4, characterized in that: The rotating shaft (14) is rotatably connected to two fixed blocks (15) at both ends along the axial direction. The fixed blocks (15) are fixedly connected to the base (1). One end of the rotating shaft (14) along the axial direction passes through the fixed block (15) and is provided with a drive motor (16). The fixed end of the drive motor (16) is fixedly connected to the base (1), and the output end of the drive motor (16) is concentrically fixedly connected to the rotating shaft (14).

6. The shaft machining positioning fixture according to claim 5, characterized in that: The shaft hole (13) of the gear one (12) of the clamping and positioning component one (2) is fixedly connected to the rotating shaft (14). The shaft hole (13) of the gear one (12) of the clamping and positioning component two (3) is slidably connected to the rotating shaft (14). A limiting groove (17) is opened on the inner wall of the shaft hole (13) of the gear one (12) of the clamping and positioning component two (3). A limiting strip (18) is fixedly connected on the rotating shaft (14). The limiting strip (18) is slidably connected to the limiting groove (17).

7. A shaft machining positioning fixture according to claim 6, characterized in that: The support base of the clamping and positioning component 2 (3) is fixedly connected to a slider (19) on the side near the base (1). The base (1) has a groove (20) corresponding to the slider (19), and the slider (19) cooperates with the groove (20).

8. A shaft machining positioning fixture according to claim 7, characterized in that: The support plate (4) of the clamping and positioning component 2 (3) is provided with a threaded hole (21). A lead screw (22) is inserted into the threaded hole (21). The lead screw (22) is threadedly connected to the threaded hole (21). One end of the lead screw (22) along the axial direction is rotatably connected to the support plate (4) of the clamping and positioning component 1 (2). A connecting block (23) is rotatably connected to the end of the lead screw (22) away from the clamping and positioning component 1 (2) along the axial direction. The connecting block (23) is fixedly connected to the base (1). A drive motor 2 (24) is provided on the side of the connecting block (23) away from the lead screw (22). The fixed end of the drive motor 2 (24) is fixedly connected to the base (1). The end of the lead screw (22) away from the clamping and positioning component 1 (2) along the axial direction passes through the connecting block (23) and is fixedly connected to the output end of the drive motor 2 (24).

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