A bearing clamping fixture for a six-sided grinder
By designing a bearing clamping fixture for a six-sided grinder, and utilizing the cooperation of limiting grooves and limiting posts, the centering and left-right limiting of the bearing outer ring is achieved, solving the problem of unstable bearing fixation in the existing technology and improving grinding accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG JINGCHENG MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-26
AI Technical Summary
Existing bearing clamping fixtures lack lateral limiting effect when fixing the outer ring of the bearing, resulting in low grinding accuracy.
A bearing clamping fixture for a six-sided grinder was designed, including a clamping mechanism. Through the cooperation of the limiting groove and the limiting post, the bearing outer ring is centered and clamped and limited to the left and right. The limiting plate driven by the motor moves the limiting groove and the limiting post synchronously to achieve stable fixation of the bearing outer ring.
This improved the fixing accuracy of the bearing outer ring, avoiding incomplete fixing in the left and right directions, and enhancing the accuracy of subsequent grinding.
Smart Images
Figure CN224274617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing manufacturing technology, specifically a bearing clamping fixture for a six-sided grinder. Background Technology
[0002] A bearing is a mechanical component whose main function is to support rotating mechanical parts, reduce the coefficient of friction during movement, and ensure rotational accuracy. Bearings are widely used in various mechanical equipment to help the shafts in these devices rotate smoothly. Based on the different frictional properties of the moving elements, bearings can be divided into two main categories: rolling bearings and sliding bearings. Rolling bearings generally consist of four parts: an outer ring, an inner ring, rolling elements, and a cage. To better connect the bearing to the mechanical equipment, the outer surface of the bearing's outer ring often needs to be precision ground using a grinding machine. Since the outer ring of the bearing is circular, a bearing clamping fixture is needed to fix the outer ring during precision grinding. Existing bearing clamping fixtures mostly use… The centering clamping mechanism secures the outer ring of the bearing. During operation, the motor drives the four jaws to move outward synchronously through the limiting mechanism until all four jaws contact the inner wall of the bearing outer ring, thus limiting the outer ring and securing it. Traditional bearing clamping fixtures use centering clamping to secure the outer ring, with the four jaws limiting the outer ring by contacting its inner wall. While this prevents the outer ring from moving forward, backward, up, or down, it lacks lateral limiting, which can lead to incomplete lateral fixation and affect subsequent grinding accuracy. Therefore, we propose a bearing clamping fixture for a six-sided grinder. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a bearing clamping fixture for a six-sided grinder. It is equipped with a clamping mechanism that can be adjusted according to the actual situation. While centering and clamping the outer ring of the bearing, it can also limit the left and right sides of the outer ring of the bearing, avoiding the situation where the outer ring of the bearing is not fixed in the left and right directions, thereby improving the subsequent grinding accuracy and effectively solving the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a bearing clamping fixture for a six-sided grinder, comprising a mounting base and a clamping mechanism;
[0005] Mounting base: Each of its outer surface right side is provided with a sliding groove, and the inner right side of the mounting base is rotatably connected to a limit plate;
[0006] Clamping mechanism: It includes a limiting groove 1, limiting posts, a movable sleeve, a top plate, a spring, and a clamping assembly. The limiting groove 1 is opened on the right side of the outer surface of the limiting plate. The limiting posts are slidably connected to the inside of the sliding groove 2. The inner ends of the limiting posts are fitted with the inner walls of the adjacent limiting groove 1. The movable sleeve is slidably connected to the right side of the outer surface of the mounting base. The outer ends of the four limiting posts are fixedly connected to the inner walls of the movable sleeve. The top plate is set at the right end of the movable sleeve. A spring is provided between the right end of the limiting post and the inside of the sliding groove 2 to provide a basis for fixing the bearing outer ring in the left and right directions. The clamping assembly is set on the inside right side of the mounting base and is equipped with a clamping mechanism that can be adjusted according to the actual situation. While centering and clamping the bearing outer ring, it can also form a limiting effect on the left and right sides of the bearing outer ring, avoiding the situation where the bearing outer ring is not fixed in the left and right directions, thereby improving the subsequent grinding accuracy.
[0007] Furthermore, the clamping assembly includes a second limiting groove and a fixing post. The second limiting groove is opened in the middle right side of the limiting plate. The middle right side of the mounting base is provided with a first sliding groove. The fixing post is slidably connected to the inside of the first sliding groove. The left side of the outer surface of the fixing post is slidably connected to the inner wall of the second limiting groove that is laterally adjacent to it, which can form a centering clamping effect to fix the outer ring of the bearing.
[0008] Furthermore, the clamping assembly also includes studs and fixing plates. The studs are all threadedly connected to the middle right side of the inside of the fixing post, and the fixing plates are all located at the right end of the studs. They can be adjusted according to actual conditions to accommodate bearing outer rings of different sizes.
[0009] Furthermore, each of the first limiting grooves is inclined to the left with the end closest to the limiting post as the center, and each of the second limiting grooves is inclined inward with the end closest to the fixed post as the center, providing a basis for the movement of the limiting post and the fixed post.
[0010] Furthermore, the clamping mechanism also includes a motor, which is located on the inside left side of the mounting base. The input end of the motor is electrically connected to the output end of the microcontroller, and the right end of the motor's output shaft is fixedly connected to the left end of the limiting plate, providing a stable drive for fixing the bearing outer ring.
[0011] Furthermore, the outer surface of the mounting base has evenly distributed mounting holes on the left side to facilitate fixed connection with the spindle of the grinding machine.
[0012] Furthermore, it also includes a microcontroller, which is placed at the lower end of the mounting base. The input terminal of the microcontroller is electrically connected to an external power supply to provide control for fixing the outer ring of the bearing.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The bearing clamping fixture of this six-sided grinder has the following advantages:
[0014] By rotating the fixing plate, the position of the fixing plate can be changed to accommodate bearing outer rings of different sizes. By rotating the limiting plate, the limiting groove one and the limiting groove two move synchronously. The compression of the limiting groove one and the limiting groove two causes the fixing post to move inward while the top plate moves to the right. This achieves centering and clamping while limiting the left and right directions of the bearing outer ring, avoiding the situation where the bearing outer ring is not fixed in the left and right directions, thereby improving the subsequent grinding accuracy. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic cross-sectional view of the clamping mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the movable sleeve of this utility model;
[0018] Figure 4 This is a schematic diagram of the limiting disc structure of this utility model.
[0019] In the diagram: 1 Mounting base, 2 Slide groove one, 3 Slide groove two, 4 Limiting plate, 5 Clamping mechanism, 51 Limiting groove one, 52 Limiting post, 53 Moving sleeve, 54 Top piece, 55 Spring, 56 Clamping assembly, 561 Limiting groove two, 562 Fixing post, 563 Stud, 564 Fixing piece, 57 Motor, 6 Microcontroller. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 This embodiment provides a technical solution: a bearing clamping fixture for a six-sided grinder, including a mounting base 1 and a clamping mechanism 5;
[0022] Mounting base 1: The right side of its outer surface is provided with a sliding groove 3. The right side of the inner surface of mounting base 1 is rotatably connected to a limit plate 4. The left side of the outer surface of mounting base 1 is provided with evenly distributed mounting holes, which can be connected to the spindle of the grinding machine by external bolts, so as to facilitate the fixed connection with the spindle of the grinding machine. It also includes a microcontroller 6, which is placed at the lower end of mounting base 1. The input end of microcontroller 6 is electrically connected to an external power supply to provide control for the fixing of the bearing outer ring.
[0023] Clamping mechanism 5: It includes a limiting groove 51, limiting posts 52, a movable sleeve 53, a top plate 54, a spring 55, and a clamping assembly 56. The limiting grooves 51 are all located on the right side of the outer surface of the limiting plate 4. The limiting posts 52 are all slidably connected to the inside of the sliding groove 3. The inner ends of the limiting posts 52 are fitted with the inner walls of the laterally adjacent limiting grooves 51. The movable sleeve 53 is slidably connected to the right side of the outer surface of the mounting base 1. The width of the movable sleeve 53 is greater than the length of the sliding groove 3, allowing surface impurities to enter the sliding groove 3. The outer ends of the four limiting posts 52 are fixedly connected to the inner walls of the movable sleeves 53. The top plates 54 are all located at the right end of the movable sleeves 53. 1. A clearance groove is provided at the right end of the top plate 54, which is laterally adjacent to it. The top plate 54 can be retracted into the clearance groove. A spring 55 is provided between the right end of the limiting post 52 and the inside of the second slide groove 3. The spring 55 provides a basis for the leftward movement of the top plate 54 and for the left-right fixation of the bearing outer ring. The clamping assembly 56 is located on the right side inside the mounting base 1. The clamping assembly 56 includes a second limiting groove 561 and a fixing post 562. The second limiting groove 561 is located in the middle of the right side of the limiting plate 4. A slide groove 2 is provided in the middle of the right side inside the mounting base 1. The fixing post 562 is slidably connected to the inside of the slide groove 2. The left side of the outer surface of the fixing post 562 is slidably connected to the inner wall of the laterally adjacent second limiting groove 561. The inner wall of the slide groove 2 is connected to the fixing post 562. Each column 562 is equipped with a stackable dust cover. When the fixed column 562 moves outward, the dust cover away from the center of the limiting plate 4 retracts, while the dust cover near the center of the limiting plate 4 unfolds. This prevents impurities from entering the interior of the limiting groove 561 and creates a centering clamping effect to fix the outer ring of the bearing. The clamping assembly 56 also includes studs 563 and fixing plates 564. The studs 563 are all threaded to the middle right side of the interior of the fixed column 562. The fixing plates 564 are all located at the right end of the studs 563. Each right end of the fixed column 562 is equipped with a stackable bellows, which are all fitted onto the outer surface of the studs 563. Each right end of the bellows is equipped with a connecting ring, the outer surface of which is rotatably connected to the interior of the laterally adjacent fixing plate 564. When the column is rotated and fixed... When the fixed plate 564 is in place, the connecting ring ensures that the bellows will not twist due to the rotation of the fixed plate 564. When the fixed plate 564 moves to the left, it squeezes the connecting ring, causing the bellows to contract. When the fixed plate 564 moves to the right, it pulls the connecting ring, causing the bellows to expand. This prevents the external environment from affecting the stud 563. It can be adjusted according to the actual situation to accommodate bearing outer rings of different sizes. The limiting grooves 51 are all inclined to the left with the end closest to the limiting post 52 as the center. The end of the left side wall of the limiting groove 51 closest to the limiting post 52 is close to the right end of the limiting plate 4, and the end of the left side wall of the limiting groove 51 furthest from the limiting post 52 is far from the right end of the limiting plate 4. Therefore, the left side wall of the limiting groove 51 is in an inclined state. Figure 4As shown, at this time, the limiting post 52 is squeezed by the left side wall of the limiting groove 51, causing the moving sleeve 53 and the top piece 54 to extend to the right. When the limiting plate 4 rotates backward to release the bearing outer ring, the limiting groove 51 also rotates backward. Due to the left side wall of the limiting groove 51 tilting to the left, combined with the elastic deformation of the spring 55 and the limiting of the sliding groove 3, when the limiting groove 51 moves, the outer surface of the corresponding limiting post 52 will always be in contact with the left side wall of the limiting groove 51, thereby realizing the automatic leftward movement of the moving sleeve 53 and the top piece 54. Similarly, when the limiting post 52 moves, the outer surface of the corresponding limiting post 52 will always be in contact with the left side wall of the limiting groove 51, thus realizing the automatic leftward movement of the moving sleeve 53 and the top piece 54. When the positioning plate 4 rotates forward to fix the outer ring of the bearing, the limiting post 52 moves from left to right due to the pressure of the left side wall of the limiting groove 51, causing the moving sleeve 53 and the top piece 54 to extend to the right. The limiting grooves 561 are all inclined inward with the end closest to the fixed post 562 as the center. The end of the limiting groove 561 closest to the fixed post 562 is close to the outer surface of the limiting plate 4, and the end of the limiting groove 561 furthest from the fixed post 562 is far from the outer surface of the limiting plate 4. The distance between the surfaces minus the distance between the end of the limiting groove 561 near the fixed post 562 and the outer surface of the limiting plate 4 is the stroke of the fixed post 562. Limited by the sliding groove 2, when the limiting plate 4 rotates backward, the four fixed posts 562 move inward, releasing the bearing outer ring. When the limiting plate 4 rotates forward, the four fixed posts 562 move outward, and the outer surface of the fixed posts 562 contacts the inner wall of the bearing outer ring, thus fixing the bearing outer ring. This provides a basis for the movement of the limiting posts 52 and the fixed posts 562. The clamping mechanism 5 also includes an electric... The motor 57 is located inside the mounting base 1 on the left side. The input end of the motor 57 is electrically connected to the output end of the microcontroller 6. The right end of the output shaft of the motor 57 is fixedly connected to the left end of the limiting plate 4, providing a stable drive for fixing the bearing outer ring. A clamping mechanism 5 is provided, which can be adjusted according to the actual situation. While fixing the bearing outer ring by centering and clamping, it can also form a limiting effect on the left and right sides of the bearing outer ring, avoiding the situation where the bearing outer ring is not fixed in the left and right directions, thereby improving the subsequent grinding accuracy.
[0024] The working principle of the bearing clamping fixture for a six-sided grinder provided by this utility model is as follows: When performing fine grinding of the bearing outer ring, first fix the mounting seat 1 on the spindle of the grinder through the mounting holes. Then, adjust according to the width of the bearing outer ring, and rotate the four fixing plates 564 by the same number of turns. As the fixing plates 564 rotate, the studs 563 also rotate and move to the left until the fixing plates 564 move to the appropriate position, and the bearing outer ring is placed between the four fixing posts 562. At this time, the four fixing posts 562 are in an inward contraction state, and the top plate 54 is also in a contraction state located at the right end of the inner side of the mounting seat 1. The microcontroller 6 controls the motor 57 to reverse, and the output shaft of the motor 57 drives the limiting plate 4 to rotate. The limiting groove 561 presses the left end of the outer surface of the fixing post 562, driving the four fixing posts 562 to move outward synchronously until the outer surfaces of the four fixing posts 562 are all in contact with the inner wall of the bearing outer ring. At this time, the bearing outer ring is fixed. As the limiting disc 4 rotates, the limiting groove 51 presses the four limiting posts 52 to the right, and the moving sleeve 53 and the top plate 54 also move to the right simultaneously. The spring 55 contracts under force, and the top plate 54 pushes the bearing outer ring to the right until the right end of the bearing outer ring is in contact with the left end of the fixing plate 564. During this process, through the previous adjustment of the fixing plate 564, while the fixing posts 562 are in contact with the bearing outer ring, the top plate 54 also pushes the bearing outer ring to the right until it is in contact with the fixing plate 564. While achieving centering and clamping, it also limits the left and right directions of the bearing outer ring. Then, the fine grinding of the bearing outer ring can be carried out. After the fine grinding is completed, the microcontroller 6 controls the motor 57 to rotate forward. The second limiting groove 561 squeezes the fixed column 562, causing the four fixed columns 562 to move inward. The first limiting groove 51 also returns to its original position. The limiting column 52 is no longer under force, and the spring 55 rebounds, causing the moving sleeve 53 and the top plate to move to the left. The bearing outer ring is no longer restricted and can be quickly removed.
[0025] It is worth noting that the microcontroller 6 disclosed in the above embodiments is an STM8L051F3P6TR microcontroller, and the motor 57 is a 2BLD10-24GN-20S motor. The microcontroller 6 controls the operation of the motor 57 using methods commonly used in the prior art.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A bearing clamping fixture for a six-sided grinder, characterized in that: Includes a mounting base (1) and a clamping mechanism (5); Mounting base (1): The right side of its outer surface is provided with a sliding groove (3), and the right side of the inner side of the mounting base (1) is rotatably connected to a limiting plate (4); Clamping mechanism (5): It includes a limiting groove (51), a limiting post (52), a movable sleeve (53), a top piece (54), a spring (55), and a clamping assembly (56). The limiting groove (51) is opened on the right side of the outer surface of the limiting plate (4). The limiting posts (52) are slidably connected to the inside of the sliding groove (3). The inner ends of the limiting posts (52) are fitted with the inner walls of the adjacent limiting grooves (51). The movable sleeve (53) is slidably connected to the right side of the outer surface of the mounting base (1). The outer ends of the four limiting posts (52) are fixedly connected to the inner walls of the movable sleeve (53). The top piece (54) is set at the right end of the movable sleeve (53). A spring (55) is provided between the right end of the limiting post (52) and the inside of the sliding groove (3). The clamping assembly (56) is set on the right side of the inside of the mounting base (1).
2. The bearing clamping fixture for a six-sided grinder according to claim 1, characterized in that: It also includes a microcontroller (6), which is placed at the lower end of the mounting base (1), and the input terminal of the microcontroller (6) is electrically connected to an external power supply.
3. The bearing clamping fixture for a six-sided grinder according to claim 1, characterized in that: The clamping assembly (56) includes a second limiting groove (561) and a fixing post (562). The second limiting groove (561) is located in the middle right side of the limiting plate (4). The middle right side of the mounting base (1) is provided with a first sliding groove (2). The fixing post (562) is slidably connected to the inside of the first sliding groove (2). The left side of the outer surface of the fixing post (562) is slidably connected to the inner wall of the second limiting groove (561) that is laterally adjacent.
4. The bearing clamping fixture for a six-sided grinder according to claim 3, characterized in that: The clamping assembly (56) further includes studs (563) and fixing plates (564). The studs (563) are all threaded to the middle of the right side inside the fixing post (562), and the fixing plates (564) are all located at the right end of the studs (563).
5. The bearing clamping fixture for a six-sided grinder according to claim 3, characterized in that: The first limiting groove (51) is inclined to the left with the end closest to the limiting post (52) as the center, and the second limiting groove (561) is inclined inward with the end closest to the fixed post (562) as the center.
6. The bearing clamping fixture for a six-sided grinder according to claim 2, characterized in that: The clamping mechanism (5) also includes a motor (57), which is located on the inside left side of the mounting base (1). The input end of the motor (57) is electrically connected to the output end of the microcontroller (6), and the right end of the output shaft of the motor (57) is fixedly connected to the left end of the limiting plate (4).
7. The bearing clamping fixture for a six-sided grinder according to claim 1, characterized in that: The mounting base (1) has uniformly distributed mounting holes on its outer left side.