A clamping device for bearing machining

Abstract

The utility model relates to bearing processing technical field, and disclose a kind of clamping device for bearing processing, including base and first support box, the top of base is provided with adjusting assembly, the top of base is provided with driving assembly, inner ring clamping assembly is set to the inner wall of first support box, the inner ring clamping assembly includes the first drive motor slidingly connected in the inner wall of first support box, the utility model can be with inner ring itself as positioning datum by setting inner ring clamping assembly, avoid the influence of outer circle blank error to machining accuracy, reduce inner ring and outer circle axis line deviation, ensure inner ring axis line and lathe main shaft coaxial degree, and can adapt to the bearing of different axial height, realize the stepless regulation of radial dimension, avoid the problem that bearing is deformed due to only clamping outer ring, uneven stress, unilateral force application, and it is easy to make processing error cumulative influence final accuracy.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, specifically a clamping device for bearing processing. Background Technology

[0002] As a core component of mechanical systems, the machining accuracy of bearings directly affects the performance and lifespan of the main machine. In key processes such as grinding and turning of bearing rings, the technical level of the clamping device plays a decisive role in machining quality, efficiency, and cost.

[0003] The machining of bearing rings requires the workpiece's centerline or end face as a reference. The clamping device ensures that the machining tool and the reference surface maintain a constant relative relationship by fixing the workpiece position, thus avoiding dimensional errors caused by workpiece offset. Therefore, a clamping device is needed. However, traditional clamping devices only clamp the outer ring, resulting in uneven force. Applying force on one side causes the bearing to deform, and it is easy for machining errors to accumulate, affecting the final accuracy. This causes the bearing to lose the stability of the positioning reference and its resistance to deformation, further reducing the bearing's pass rate and increasing costs. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device for bearing processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clamping device for bearing processing, comprising a base and a first support box, wherein an adjustment component is provided on the top of the base, and a drive component is provided on the top of the base; An inner ring clamping assembly is disposed on the inner wall of the first support box. The inner ring clamping assembly includes a first drive motor slidably connected to the inner wall of the first support box. A first transmission shaft is fixedly connected to the output end of the first drive motor. A spiral frame is fixedly connected to the outer side of the first transmission shaft. A fixing frame is fixedly connected to one end of the first transmission shaft. A connecting column is slidably connected to the inner wall of the spiral groove of the spiral frame. An arc-shaped abutment is fixedly connected to the outer wall of the connecting column. The outer wall of the arc-shaped abutment is slidably connected to the inner wall of the fixing frame.

[0006] Preferably, the adjustment assembly includes a support plate fixedly connected to the bottom of the first drive motor, and the inner wall of the first support box is provided with a sliding groove, wherein the outer wall of the support plate is slidably connected to the inner wall of the sliding groove.

[0007] Preferably, the adjusting assembly further includes a first lead screw threaded to the inner wall of the receiving plate, a handle fixedly connected to the top of the first lead screw, a second support box fixedly connected to the top of the base, the first lead screw being rotatably connected to the inner wall of the second support box, and the first lead screw being rotatably connected to the top of the base.

[0008] Preferably, a support frame is fixedly connected to the top of the base, a fixing column is fixedly connected to the inner wall of the support frame, and a guide groove is provided on the inner wall of the support frame.

[0009] Preferably, the drive assembly includes a second drive motor fixed to the top of the base, the output end of the second drive motor is fixedly connected to a rotating shaft, a first bevel gear is fixedly connected to the outer side of the rotating shaft, a second bevel gear meshes with the outer side of the first bevel gear, and a second transmission shaft is fixed to the inner wall of the second bevel gear.

[0010] Preferably, the inner wall of the support frame is fixed with a fixing plate, the outer wall of the fixing plate is fixedly connected to one end of the fixing column, the inner wall of the fixing plate is rotatably connected to the outer wall of the second transmission shaft, one end of the second transmission shaft is fixedly connected with a first transmission gear, and the outer side of the first transmission gear is meshed with a second transmission gear.

[0011] Preferably, a second lead screw is fixedly connected to the inner wall of the second transmission gear, and a support plate is threadedly connected to the outer wall of the second lead screw. The outer wall of the support plate is slidably connected to the inner wall of the guide groove.

[0012] Preferably, a fixing box is fixedly connected to the bottom of the support plate, and a positive and negative threaded rod is rotatably connected to the inner wall of the fixing box, with a handle fixedly connected to one end of the positive and negative threaded rod.

[0013] Preferably, the inner wall of the fixing box is provided with a sliding groove, the outer wall of the positive and negative threaded rod is threaded with a sliding plate, the outer side of the sliding plate is slidably connected to the inner wall of the sliding groove, and the bottom of the sliding plate is fixedly connected with a clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting an inner ring clamping component, can use the inner ring itself as a positioning reference, avoiding the influence of outer circle blank errors on machining accuracy, reducing the offset between the inner ring and outer circle axes, ensuring the coaxiality of the inner ring axis with the machine tool spindle, and can adapt to bearings with different axial heights, realizing stepless adjustment of radial dimensions. It avoids the problem of uneven force due to clamping only the outer ring, causing bearing deformation due to unilateral force application, and easily causing the accumulation of machining errors to affect the final accuracy, thus increasing the stability of the bearing positioning reference and its resistance to deformation. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a clamping device for bearing processing provided by this utility model; Figure 2 A schematic diagram of the first support box and adjustment assembly provided by this utility model; Figure 3 for Figure 2A magnified structural diagram at point A shown in the figure; Figure 4 for Figure 2 A magnified structural diagram of point B shown in the figure; Figure 5 A schematic diagram of the fixing plate and the first transmission gear provided by this utility model; Figure 6 This is a schematic diagram of the sliding plate and gripper structure provided by this utility model.

[0016] In the diagram: 1. Base; 2. First support box; 3. Inner ring clamping assembly; 301. First drive motor; 302. First transmission shaft; 303. Screw frame; 304. Fixing frame; 305. Connecting column; 306. Arc-shaped abutment; 4. Adjustment assembly; 401. Support plate; 402. Slide groove; 403. First lead screw; 404. Handle; 405. Second support box; 5. Support frame; 6. Fixing column; 7. Drive assembly; 701. Second drive motor; 702. Rotating shaft; 703. First bevel gear; 704. Second bevel gear; 705. Second transmission shaft; 8. Fixing plate; 9. First transmission gear; 10. Second transmission gear; 11. Second lead screw; 12. Guide groove; 13. Support plate; 14. Fixing box; 15. Positive and negative threaded rod; 16. Handle; 17. Sliding plate; 18. Sliding groove; 19. Gripper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 As shown, a clamping device for bearing processing includes a base 1 and a first support box 2. An adjustment component 4 and a drive component 7 are provided on the top of the base 1. The base 1 serves as the basic support structure for the entire clamping device, providing installation positions for other components, ensuring the overall stability and rigidity of the device, bearing various forces generated during processing, dispersing processing forces, and preventing the device from shaking or shifting. The first support box 2 provides installation space and support for the inner ring clamping component 3, protects part of the structure of the inner ring clamping component 3, and plays a certain positioning and guiding role in the clamping operation of the bearing inner ring.

[0019] The inner ring clamping assembly 3 is disposed on the inner wall of the first support box 2. The inner ring clamping assembly 3 includes a first drive motor 301 slidably connected to the inner wall of the first support box 2. The output end of the first drive motor 301 is fixedly connected to a first transmission shaft 302. A screw frame 303 is fixedly connected to the outer side of the first transmission shaft 302. A fixing frame 304 is fixedly connected to one end of the first transmission shaft 302. A connecting post 305 is slidably connected to the inner wall of the spiral groove of the screw frame 303. An arc-shaped abutment 306 is fixedly connected to the outer wall of the connecting post 305. The outer wall of the arc-shaped abutment 306 is slidably connected to the inner wall of the fixing frame 304. A drive motor 301 provides power to the inner ring clamping assembly 3, driving the first transmission shaft 302 to rotate and transmitting the rotational motion to the screw carrier 303. The spiral groove on the screw carrier 303 has a specific pitch and lead. When it rotates, the connecting post 305 slides in the spiral groove. Due to the spiral shape of the spiral groove, the connecting post 305 produces a linear motion along the radial direction of the screw carrier 303. The fixing frame 304 ensures the stability of the first transmission shaft 302 during rotation, preventing it from axial movement or radial runout, and ensuring the accuracy of the clamping action. The connecting post 305 drives the arc-shaped abutment plate 306 to move linearly.

[0020] The adjustment assembly 4 includes a receiving plate 401 fixedly connected to the bottom of the first drive motor 301. The inner wall of the first support box 2 is provided with a sliding groove 402. The outer wall of the receiving plate 401 is slidably connected to the inner wall of the sliding groove 402. The receiving plate 401 converts the rotational motion of the first lead screw 403 into the linear motion of the first drive motor 301, thereby realizing the vertical position adjustment of the inner ring clamping assembly 3 to adapt to the processing of bearings of different sizes. The sliding groove 402 provides a guiding function for the movement of the receiving plate 401, ensuring that the receiving plate 401 moves linearly in the vertical direction, preventing it from shifting or shaking during the movement, and improving the accuracy of the position adjustment.

[0021] The adjusting assembly 4 also includes a first lead screw 403 threadedly connected to the inner wall of the receiving plate 401. A handle 404 is fixedly connected to the top of the first lead screw 403, and a second support box 405 is fixedly connected to the top of the base 1. The first lead screw 403 is rotatably connected to the inner wall of the second support box 405 and to the top of the base 1. The receiving plate 401 serves as the power transmission and motion conversion element of the adjusting assembly 4. The rotational motion drives the receiving plate 401 to move, thereby achieving precise adjustment of the height of the inner ring clamping assembly 3. The handle 404 facilitates manual rotation of the first lead screw 403 by the operator, providing an interface for manual operation. The first lead screw 403 provides support and fixation, and the second support box 405 ensures the stability of the first lead screw 403 during rotation, preventing it from bending or deforming, and ensuring the normal operation of the adjusting assembly 4.

[0022] A support frame 5 is fixedly connected to the top of the base 1, and a fixing column 6 is fixedly connected to the inner wall of the support frame 5. A guide groove 12 is opened on the inner wall of the support frame 5. The support frame 5 forms the upper structural frame of the device, ensuring the relative positional relationship between the components and the overall stability of the device. The fixing column 6 and the fixing plate 8 cooperate to further enhance the structural stability of the support frame 5 and provide additional support points for the fixing plate 8.

[0023] The drive assembly 7 includes a second drive motor 701 fixed to the top of the base 1. A rotating shaft 702 is fixedly connected to the output end of the second drive motor 701. A first bevel gear 703 is fixedly connected to the outer side of the rotating shaft 702. A second bevel gear 704 meshes with the outer side of the first bevel gear 703. A second transmission shaft 705 is fixed to the inner wall of the second bevel gear 704. The second drive motor 701 provides power to the entire drive assembly 7, driving the rotating shaft 702 to rotate, thereby driving the first bevel gear 703 to rotate. It is the core power source for the device to achieve automated movement. The rotational motion of the second drive motor 701 is stably transmitted to the first bevel gear 703 through a rigid connection, ensuring the synchronization and accuracy of the motion. The first bevel gear 703 utilizes the tooth structure of the bevel gear. When the first bevel gear 703 rotates, its teeth mesh with the teeth of the second bevel gear 704. Through the interaction force between the gears, the rotational direction is changed by 90 degrees, while power is transmitted. The second transmission shaft 705 stably transmits the rotational motion of the second bevel gear 704 to the first transmission gear 9 through a rigid connection, ensuring the continuity and accuracy of the motion.

[0024] A fixing plate 8 is fixed to the inner wall of the support frame 5. The outer wall of the fixing plate 8 is fixedly connected to one end of the fixing column 6. The inner wall of the fixing plate 8 is rotatably connected to the outer wall of the second transmission shaft 705. A first transmission gear 9 is fixedly connected to one end of the second transmission shaft 705. A second transmission gear 10 meshes with the outer side of the first transmission gear 9. The fixing plate 8 provides support and fixation for the second transmission shaft 705, ensuring the stability of the second transmission shaft 705 during rotation. At the same time, it provides an installation position for the first transmission gear 9, ensuring the normal operation of the gear transmission. The first transmission gear 9 utilizes the tooth structure of the gear. When the first transmission gear 9 rotates, its teeth mesh with the teeth of the second transmission gear 10. Through the interaction force between the gears, the rotational motion is transmitted to the second transmission gear 10, thereby driving the second lead screw 11 to rotate.

[0025] The inner wall of the second transmission gear 10 is fixedly connected to a second lead screw 11, and the outer wall of the second lead screw 11 is threadedly connected to a support plate 13. The outer wall of the support plate 13 is slidably connected to the inner wall of the guide groove 12. When the second lead screw 11 rotates, the support plate 13 threadedly connected to it will move along the axial direction of the second lead screw 11 under the action of the thread. By controlling the rotation direction of the second lead screw 11, the moving distance of the support plate 13 can be precisely controlled. The guide groove 12 provides guidance for the movement of the support plate 13, ensuring that the support plate 13 moves linearly in the horizontal direction. The support plate 13 provides support for the fixed box 14, ensuring the stability of the fixed box 14 during the movement.

[0026] A fixed box 14 is fixedly connected to the bottom of the support plate 13. A positive and negative threaded rod 15 is rotatably connected to the inner wall of the fixed box 14. A handle 16 is fixedly connected to one end of the positive and negative threaded rod 15. The fixed box 14 provides installation space and support for the positive and negative threaded rod 15 and the sliding plate 17, protects the internal structure, and serves as the installation base for the gripper 19, enabling relative movement of the gripper 19. This allows for the clamping of bearings of different diameters. The handle 16 allows the operator to manually rotate the positive and negative threaded rod 15.

[0027] The inner wall of the fixed box 14 is provided with a sliding groove 18. The outer wall of the positive and negative threaded rod 15 is threadedly connected to a sliding plate 17. The outer side of the sliding plate 17 is slidably connected to the inner wall of the sliding groove 18. A gripper 19 is fixedly connected to the bottom of the sliding plate 17. The sliding groove 18 provides guidance for the movement of the sliding plate 17, ensuring that the sliding plate 17 moves linearly in the horizontal direction, preventing it from deviating or wobbling during movement, and improving the accuracy of the gripper 19's movement. The sliding plate 17 connects the positive and negative threaded rod 15 and the gripper 19, converting the rotational movement of the positive and negative threaded rod 15 into the linear movement of the gripper 19, thereby realizing the lateral adjustment of the gripper 19. It should be noted that, as Figure 2 and Figure 5 As shown, the top of the support frame 5 also has a set of structures similar to those described above. By rotating the positive and negative threaded rods 15, the grippers 19 are controlled to move away from or closer to each other, so as to achieve the function of positioning and clamping bearings of different diameters. The difference is that the other set of structures is fixed on the top of the support frame 5 and does not rise with the second screw 11.

[0028] Working principle: When the bearing needs to be clamped, the inner ring of the bearing is inserted into the arc-shaped abutment plate 306. By rotating the handle 404, the first lead screw 403 is driven. Under the action of the thread, the receiving plate 401 moves along the axial direction of the first lead screw 403, driving the first drive motor 301 to move, so that the outer ring of the bearing is in contact with the surface of the clamp 19 on the top of the support frame 5. Then, the second drive motor 701 is started to rotate forward, driving the rotating shaft 702 to rotate, which in turn drives the first bevel gear 703 to rotate. The first bevel gear 703 meshes with the second bevel gear 704, changing the direction of force transmission while rotating. Then, the second bevel gear 704 drives the second transmission shaft 7 05. The rotational motion of the second bevel gear 704 is stably transmitted to the first transmission gear 9 through a rigid connection. The first transmission gear 9 then meshes with the second transmission gear 10, changing the direction of the force again, thereby driving the second lead screw 11 to rotate, causing the support plate 13 to descend, which in turn causes the gripper 19 to descend and cooperate with another set to clamp the outer ring of the bearing. At the same time, the first drive motor 301 starts, driving the first transmission shaft 302 to rotate, which in turn drives the screw frame 303 to rotate, causing the connecting column 305 to slide in the spiral groove in the screw frame 303, which is converted into the linear movement of the arc-shaped abutment plate 306 in the fixed frame 304, thereby achieving the clamping of the inner ring of the bearing.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for bearing machining comprising a base (1) and a first support box (2), characterized in that, Also includes: An adjustment component (4) is disposed on the top of the base (1), and a drive component (7) is disposed on the top of the base (1). An inner ring clamping assembly (3) is disposed on the inner wall of the first support box (2). The inner ring clamping assembly (3) includes a first drive motor (301) slidably connected to the inner wall of the first support box (2). The output end of the first drive motor (301) is fixedly connected to a first transmission shaft (302). A spiral frame (303) is fixedly connected to the outer side of the first transmission shaft (302). A fixing frame (304) is fixedly connected to one end of the first transmission shaft (302). A connecting column (305) is slidably connected to the inner wall of the spiral groove of the spiral frame (303). An arc-shaped abutment (306) is fixedly connected to the outer wall of the connecting column (305). The outer wall of the arc-shaped abutment (306) is slidably connected to the inner wall of the fixing frame (304).

2. A clamping device for bearing machining according to claim 1, characterized in that: The adjustment component (4) includes a support plate (401) fixedly connected to the bottom of the first drive motor (301), and a groove (402) is provided on the inner wall of the first support box (2). The outer wall of the support plate (401) is slidably connected to the inner wall of the groove (402).

3. A clamping device for bearing machining according to claim 2, characterized in that: The adjustment assembly (4) further includes a first lead screw (403) threaded to the inner wall of the receiving plate (401), a handle (404) fixedly connected to the top of the first lead screw (403), a second support box (405) fixedly connected to the top of the base (1), the first lead screw (403) being rotatably connected to the inner wall of the second support box (405), and the first lead screw (403) being rotatably connected to the top of the base (1).

4. A clamping device for bearing machining according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a support frame (5), and the inner wall of the support frame (5) is fixedly connected to a fixing column (6). The inner wall of the support frame (5) is provided with a guide groove (12).

5. A clamping device for bearing machining according to claim 1, characterized in that: The drive assembly (7) includes a second drive motor (701) fixed to the top of the base (1). The output end of the second drive motor (701) is fixedly connected to a rotating shaft (702). A first bevel gear (703) is fixedly connected to the outside of the rotating shaft (702). A second bevel gear (704) meshes with the outside of the first bevel gear (703). A second transmission shaft (705) is fixed to the inner wall of the second bevel gear (704).

6. A clamping device for bearing machining according to claim 4, characterized in that: The inner wall of the support frame (5) is fixed with a fixing plate (8), the outer wall of the fixing plate (8) is fixedly connected to one end of the fixing column (6), the inner wall of the fixing plate (8) is rotatably connected to the outer wall of the second transmission shaft (705), one end of the second transmission shaft (705) is fixedly connected with a first transmission gear (9), and the outer side of the first transmission gear (9) is meshed with a second transmission gear (10).

7. A clamping device for bearing machining according to claim 6, characterized in that: The inner wall of the second transmission gear (10) is fixedly connected to a second lead screw (11), and the outer wall of the second lead screw (11) is threadedly connected to a support plate (13). The outer wall of the support plate (13) is slidably connected to the inner wall of the guide groove (12).

8. A clamping device for bearing machining according to claim 7, characterized in that: The bottom of the support plate (13) is fixedly connected to a fixed box (14), and the inner wall of the fixed box (14) is rotatably connected to a threaded rod (15). One end of the threaded rod (15) is fixedly connected to a handle (16).

9. A clamping device for bearing machining according to claim 8, characterized in that: The inner wall of the fixed box (14) is provided with a sliding groove (18), and the outer wall of the positive and negative threaded rod (15) is threaded with a sliding plate (17). The outer side of the sliding plate (17) is slidably connected to the inner wall of the sliding groove (18), and the bottom of the sliding plate (17) is fixedly connected with a clamp (19).

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