Bearing inner ring machining clamp
By designing a machining fixture with a moving shaft and multiple clamps, the problem of inner wall crushing during the bearing inner ring in the prior art is solved, and higher machining accuracy and assembly reliability are achieved.
Patent Information
- Application Number
- CN202421314300.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When existing machining fixtures process the inner ring of the bearing, they can easily cause internal wall compression and affect the later assembly accuracy.
A machining fixture including a clamp seat, a moving shaft and a plurality of clamp blocks is designed to drive the clamp block to clamp the inner ring of the bearing through the moving shaft to prevent the clamp block from directly contacting the inner wall.
It effectively avoids crushing the inner wall of the bearing inner ring by the clamp, and improves processing accuracy and reliability of later assembly.
Smart Images
Figure CN222511557U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bearing inner ring processing, and particularly relates to a bearing inner ring processing fixture. Background Art
[0002] The inner ring of the bearing needs to be processed during production, and a processing fixture is needed to clamp it during processing, so the inner ring of the Biman bearing is displaced.
[0003] When the existing processing fixture processes the inner ring, it is usually first clamped radially using a three-jaw chuck or a clamping block. At this time, the three-jaw chuck or the clamping block will cause pressure damage to the inner wall of the bearing inner ring, thereby affecting the subsequent assembly of the bearing inner ring and further affecting the installation accuracy of the bearing. Utility Model Content
[0004] The utility model aims to provide a bearing inner ring processing fixture to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing inner ring processing fixture, comprising: a clamping seat and a movable shaft telescopically installed on the clamping seat, a plurality of clamping blocks are distributed in a circular array along the axis on the outer wall of the movable shaft, and the plurality of clamping blocks can be inserted into the movable shaft, a bearing inner ring body is sleeved on the movable shaft, and a clamping space for clamping the bearing inner ring body is formed between the plurality of clamping blocks and the clamping seat.
[0006] Preferably, a plurality of mounting grooves are provided in a circular array on the outer wall of the movable shaft, one end of each of the plurality of clamping blocks is movably inserted in the corresponding mounting groove, and a spring for pushing the clamping block out is installed in each of the mounting grooves.
[0007] Preferably, a guide rod is installed in the installation groove along the moving direction of the clamp block, the clamp block is provided with a mounting hole sleeved on the guide rod, and the spring is sleeved on the guide rod.
[0008] Preferably, a pressing rod for bringing multiple clamps into the installation groove is also installed on the movable shaft, and a pressing groove is provided at the end of the movable shaft away from the clamp seat, and one end of the pressing rod is at least partially inserted in the pressing groove. A pull rope connected to the pressing rod is installed in each of the installation holes, and each of the guide rods is penetrated by a through hole for accommodating the corresponding pull rope.
[0009] Preferably, a driving mechanism is installed on a side of the clamping seat away from the moving shaft, and the driving mechanism is used to drive the moving shaft to move in an axial direction.
[0010] Preferably, the driving mechanism includes a rotating part, the clamp seat is provided with an installation bin for accommodating the movable shaft, one end of the rotating part is rotatably installed in the installation bin, a guide block is welded on the inner wall of the installation bin, a guide groove for accommodating the guide block is provided on the outer wall of the movable shaft along the axial direction, and one end of the movable shaft is provided with a threaded hole for accommodating the rotating part.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] (1) The utility model adds multiple clamping blocks and a movable shaft. The movable shaft can drive the multiple clamping blocks to approach the inner ring body of the bearing, so that the inner ring body of the bearing is clamped on the clamping seat by the multiple clamping blocks, thereby realizing that the equipment clamps the end of the inner ring body of the bearing by the multiple clamping blocks, thereby preventing the clamping blocks from causing damage to the inner wall.
[0013] (2) The utility model adds a mounting groove and a spring, through which the clamp block can be telescopically installed on the movable shaft. When the clamp block is retracted into the mounting groove, the inner ring body of the bearing is conveniently located in the clamping space. When one end of the clamp block extends out of the mounting groove, the inner ring body of the bearing can be clamped by the clamp block.
[0014] (3) The utility model adds a pressing rod and multiple pull ropes. When the pressing rod is pressed, the multiple pull ropes facilitate the multiple clamping blocks to enter the installation groove at the same time. At this time, the restriction of the clamping blocks on the inner ring body of the bearing is released, making it easier for the inner ring body of the bearing to separate from the moving shaft.
[0015] (4) The utility model can drive the movable shaft to move axially on the clamping seat through the additional rotating member, guide block and guide groove, thereby facilitating the clamping block to be clamped on the inner ring body of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front view of the utility model;
[0017] Figure 2 It is a top view of the utility model;
[0018] Figure 3 It is a cross-sectional view of the utility model;
[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0020] In the figure: 1. rotating part; 2. clamping seat; 3. bearing inner ring body; 4. moving shaft; 5. pressing rod; 6. clamping block; 7. mounting groove; 8. pressing groove; 9. mounting hole; 10. threaded hole; 11. mounting compartment; 12. guide groove; 13. guide block; 14. pull rope; 15. through hole; 16. guide rod; 17. spring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] refer to Figure 1 As shown, the utility model provides a bearing inner ring processing fixture, including: a clamping seat 2 and a movable shaft 4 telescopically installed on the clamping seat 2, a plurality of clamping blocks 6 are distributed in a circular array along the axis on the outer wall of the movable shaft 4, and the plurality of clamping blocks 6 can be inserted into the movable shaft 4, a bearing inner ring body 3 is sleeved on the movable shaft 4, and a clamping space for clamping the bearing inner ring body 3 is formed between the plurality of clamping blocks 6 and the clamping seat 2.
[0023] As mentioned above, when using the clamping seat 2, movable shaft 4, multiple clamping blocks 6 and bearing inner ring body 3 provided by the utility model, the multiple clamping blocks 6 are pressed into the movable shaft 4, and the bearing inner ring body 3 is sleeved on the movable shaft 4, and the bearing inner ring body 3 is moved through the multiple clamping blocks 6, so that the bearing inner ring body 3 is in the clamping space. At this time, one end of the multiple clamping blocks 6 is all outside the movable shaft 4, and the movable shaft 4 is moved to one side of the clamping seat 2, thereby driving the multiple clamping blocks 6 to abut against the bearing inner ring body 3. At this time, the multiple clamping blocks 6 abut against the outer wall of the bearing inner ring body 3, and will not cause pressure damage to the inner wall of the bearing inner ring body 3.
[0024] In the present utility model, combined with Figure 3-4 As shown, the outer wall of the movable shaft 4 of this embodiment is also provided with a plurality of mounting grooves 7 in a circular array, one end of each of the plurality of clamping blocks 6 is movably inserted in the corresponding mounting groove 7, and each mounting groove 7 is provided with a spring 17 for pushing the clamping block 6 out.
[0025] As mentioned above, when using the mounting groove 7 and the spring 17 provided by the utility model, the clamping block 6 can be conveniently embedded and installed on the movable shaft 4 through the mounting groove 7. The depth of the mounting groove 7 is greater than the length of the clamping block 6. The clamping block 6 can enter the mounting groove 7 as a whole. The clamping block 6 is at least partially located on the outside of the movable shaft 4 due to the elastic force of the spring 17, so that the inner ring body 3 of the bearing can be clamped by the clamping block 6.
[0026] Further, in order to guide the spring 17, refer to Figure 4As shown, a guide rod 16 is installed in the installation groove 7 along the moving direction of the clamp block 6, and a mounting hole 9 is provided on the clamp block 6 to be sleeved on the guide rod 16, and a spring 17 is sleeved on the guide rod 16. The spring 17 is guided by the guide rod 16, so that the elastic force of the spring 17 can be applied to the clamp block 6. At the same time, the spring 17 is protected by the guide rod 16 to increase the service life of the spring 17. In addition, the clamp block 6 can be sleeved on the guide rod 16 through the mounting hole 9, so that the spring 17 can be compressed by the clamp block 6.
[0027] In the present utility model, combined with Figure 1-3 As shown, a pressing rod 5 for bringing multiple clamping blocks 6 into the mounting groove 7 is also installed on the movable shaft 4 of this embodiment, and a pressing groove 8 is provided at the end of the movable shaft 4 away from the clamping seat 2, and one end of the pressing rod 5 is at least partially inserted into the pressing groove 8, and a pull rope 14 connected to the pressing rod 5 is installed in each mounting hole 9, and a through hole 15 for accommodating the corresponding pull rope 14 to pass through is opened on each guide rod 16.
[0028] As mentioned above, when using the pressing rod 5 provided by the utility model, the pressing rod 5 is moved and installed in the axial direction of the movable shaft 4 through the pressing groove 8. The pressing rod 5 is respectively connected to the multiple clamping blocks 6 through multiple pull ropes 14. When the pressing rod 5 is pressed, the pressing rod 5 moves downward in the pressing groove 8. At this time, the multiple clamping blocks 6 are driven by the pull rope 14 to enter the installation groove 7 at the same time, thereby releasing the restriction of the clamping blocks 6 on the bearing inner ring body 3, making it convenient to take the bearing inner ring body 3 out of the movable shaft 4 or put it on the movable shaft 4.
[0029] In the present utility model, combined with Figure 1 and Figure 3 As shown, a driving mechanism is also installed on the side of the clamping seat 2 of this embodiment away from the moving shaft 4, and the driving mechanism is used to drive the moving shaft 4 to move in the axial direction.
[0030] Combination Figure 3 As shown, the driving mechanism includes a rotating member 1, a mounting chamber 11 for accommodating a movable shaft 4 is provided on a clamping seat 2, one end of the rotating member 1 is rotatably installed in the mounting chamber 11, a guide block 13 is welded on the inner wall of the mounting chamber 11, a guide groove 12 for accommodating the guide block 13 is provided on the outer wall of the movable shaft 4 along the axial direction, and a threaded hole 10 for accommodating the rotating member 1 is provided at one end of the movable shaft 4.
[0031] As mentioned above, when using the driving mechanism provided by the utility model, one end of the rotating member 1 in the driving mechanism is rotatably installed in the installation bin 11. In the installation bin 11, the movable shaft 4 can only move axially in the installation bin 11 through the guide block 13 and the guide groove 12. One end of the rotating member 1 is a threaded section. When the rotating member 1 rotates, the movable shaft 4 can be driven to reciprocate in the installation bin 11 through the threaded section and the threaded hole 10. When the movable shaft 4 moves toward one side of the clamp seat 2, it is convenient to drive multiple clamp blocks 6 to clamp on the bearing inner ring body 3. When the movable shaft 4 moves to the side away from the clamp seat 2, it is convenient to drive multiple clamp blocks 6 away from the bearing inner ring body 3.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bearing inner ring machining fixture, characterized in that: include: A clamping seat (2) and a movable shaft (4) telescopically mounted on the clamping seat (2); a plurality of clamping blocks (6) are distributed in a circular array along the axis on the outer wall of the movable shaft (4); and the plurality of clamping blocks (6) can be inserted into the movable shaft (4); a bearing inner ring body (3) is sleeved on the movable shaft (4); and a clamping space for clamping the bearing inner ring body (3) is formed between the plurality of clamping blocks (6) and the clamping seat (2).
2. A bearing inner ring machining fixture according to claim 1, characterized in that: The outer wall of the movable shaft (4) is also provided with a plurality of mounting grooves (7) in a circular array, one end of each of the plurality of clamping blocks (6) is movably inserted into the corresponding mounting groove (7), and each of the mounting grooves (7) is provided with a spring (17) for pushing the clamping block (6) out.
3. A bearing inner ring machining fixture according to claim 2, characterized in that: A guide rod (16) is installed in the installation groove (7) along the moving direction of the clamping block (6), a mounting hole (9) is provided on the clamping block (6) and is sleeved on the guide rod (16), and the spring (17) is sleeved on the guide rod (16).
4. A bearing inner ring machining fixture according to claim 3, characterized in that: A pressing rod (5) for bringing a plurality of clamping blocks (6) into the mounting groove (7) is also installed on the movable shaft (4); a pressing groove (8) is provided at one end of the movable shaft (4) away from the clamping seat (2); at least a portion of one end of the pressing rod (5) is inserted into the pressing groove (8); a pull rope (14) connected to the pressing rod (5) is installed in each of the mounting holes (9); and a through hole (15) for accommodating the corresponding pull rope (14) is provided on each of the guide rods (16).
5. The bearing inner ring machining fixture according to claim 1, characterized in that: A driving mechanism is also installed on the side of the clamping seat (2) facing away from the moving shaft (4), and the driving mechanism is used to drive the moving shaft (4) to move in the axial direction.
6. A bearing inner ring machining fixture according to claim 5, characterized in that: The driving mechanism comprises a rotating member (1), a mounting chamber (11) for accommodating a movable shaft (4) is provided on the clamping seat (2), one end of the rotating member (1) is rotatably mounted in the mounting chamber (11), a guide block (13) is welded on the inner wall of the mounting chamber (11), a guide groove (12) for accommodating the guide block (13) is provided on the outer wall of the movable shaft (4) along the axial direction, and a threaded hole (10) for accommodating the rotating member (1) is provided at one end of the movable shaft (4).