Positioning device for bearing machining
By setting pre-fixing jaws and pre-fixing rods on the chuck jaws, the bearing rings are pre-fixed using the spring force, which solves the problem of cumbersome conventional chuck operation and improves the fixing efficiency and operational continuity of bearing machining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN BITUO PRECISION MASCH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
The conventional chuck clamping of bearing rings is cumbersome, and the single-handed operation of the wrench has low continuity, which can lead to bearing slippage or displacement.
The chuck employs a pre-fixed claw and pre-fixed rod structure, utilizing the spring force to pre-fix the bearing ring on the chuck jaws, facilitating quick fixation by both hands during chuck operation.
It improves the fixing efficiency and operational consistency of bearing rings, reduces the risk of bearing slippage or displacement, and simplifies the operation process.
Smart Images
Figure CN224464530U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing processing technology, and in particular relates to a positioning device for bearing processing. Background Technology
[0002] Positioning equipment for bearing machining is a special tooling or machine tool accessory used to ensure the positional accuracy and clamping stability of the workpiece during the machining of bearing components (such as inner ring, outer ring, rolling elements, cage, etc.). It uses a chuck to clamp the bearing ring and is used to fix the inner or outer ring of the bearing in turning, grinding and other processes.
[0003] After the bearing ring is placed on the chuck, the bearing is prone to slippage or displacement when operating the chuck. It requires one hand to operate and the other hand to rotate the wrench to clamp the bearing ring. The single-handed operation of the wrench has a relatively low continuity, which makes the operation of clamping the bearing ring with a conventional chuck quite troublesome.
[0004] Therefore, we propose a positioning device for bearing processing to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to solve the problem that the conventional chuck clamping of bearing rings is cumbersome, and to propose a positioning device for bearing processing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A positioning device for bearing machining includes a chuck. A pre-fixing jaw is slidably mounted on the jaws of the chuck. A first spring is mounted at the root of the pre-fixing jaw, and the root of the first spring is mounted on one of the jaws of the chuck. A pre-fixing rod is slidably mounted on one of the jaws, and a second spring is provided at the root of the pre-fixing rod, which is mounted on one of the jaws of the chuck. When machining the outer circumference of a target bearing ring, the target bearing ring is placed over the pre-fixing jaw, or over the pre-fixing rod and the jaws of the chuck. The elastic force of the first spring acts on the pre-fixing jaw, providing elastic support within the target bearing ring. Alternatively, the elastic force of the second spring acts on the pre-fixing rod, providing elastic force within the bearing ring. This pre-fixes the target bearing ring onto the pre-fixing jaw or the pre-fixing rod, allowing for convenient, hands-free operation of the chuck to quickly fix the target bearing ring.
[0008] Preferably, the pre-fixing claw includes a first sliding rod, one end of which is fixedly connected to a first sliding sleeve. The first sliding sleeve and the first sliding rod are slidably mounted on the jaws of the chuck. The first spring is inserted into the first sliding sleeve, and a guide claw is fixedly connected to the end of the first sliding rod facing away from the first sliding sleeve. When the target bearing ring is fitted onto the pre-fixing claw, the guide claw guides the target bearing ring to fit over the first sliding rod, causing the inner wall of the target bearing ring to contract inward. This allows the first sliding rod to overcome the elastic force of the first spring and adapt to the inner diameter of the target bearing ring, facilitating the pre-fixation of the target bearing ring.
[0009] Preferably, the first spring includes a first spring body, one end of which is fixedly connected to a first bolt. The chuck is slidably inserted into a first sliding sleeve, the first spring body contacts a first sliding rod, and the first bolt is threaded into the chuck's jaws. The first spring body provides an outward elastic force to the first sliding rod, facilitating the pre-fixed jaws to maintain their extended position.
[0010] Preferably, the pre-fixing rod includes a second sliding rod, one end of which is fixedly connected to a second sliding sleeve. The second sliding rod and the second sliding sleeve are slidably installed in one of the jaws of the chuck, and the second spring is movably inserted into the second sliding sleeve. The target bearing ring is placed over the second sliding rod, and then the target bearing ring is pulled, causing the target bearing ring to drive the second sliding rod to retract into the jaw of the chuck. The remaining inner wall of the target bearing ring is then placed over the remaining jaws of the chuck, facilitating the pre-fixing of larger bearing rings.
[0011] Preferably, the end of the second slide rod facing away from the second slide sleeve has anti-slip grooves. The anti-slip grooves increase the friction between the second slide rod and the target bearing ring.
[0012] Preferably, the second spring includes a second bolt, which is threaded onto one of the jaws of the chuck. One end of the second bolt is fixedly connected to a second spring body, which slides within a second sliding sleeve and contacts a second sliding rod. The elastic force of the second spring body acts on the second sliding rod, facilitating the retention of the pre-fixed rod in the extended state.
[0013] In summary, the technical effects and advantages of this utility model are as follows:
[0014] 1. When machining the outer circumference of the target bearing ring, place the target bearing ring over the pre-fixed jaw, or place the target bearing ring over the jaws of the pre-fixed rod and the chuck. Use the elastic force of the first spring to act on the pre-fixed jaw, so that the pre-fixed jaw is elastically supported inside the target bearing ring. Alternatively, use the elastic force of the second spring to act on the pre-fixed rod, so that the elastic force of the pre-fixed rod acts inside the bearing ring, so that the target bearing ring is pre-fixed on the pre-fixed jaw or pre-fixed rod. This allows for easy, hands-free operation of the chuck to quickly fix the target bearing ring.
[0015] 2. When fitting the target bearing ring onto the pre-fixing claw, the guide claw guides the target bearing ring to fit outside the first slide rod, causing the inner wall of the target bearing ring to contract inward. This allows the first slide rod to overcome the elastic force of the first spring and adapt to the inner diameter of the target bearing ring, facilitating the pre-fixation of the target bearing ring.
[0016] 3. Place the target bearing ring over the second slide bar, then pull the target bearing ring so that it causes the second slide bar to retract into the jaws of the chuck. Place the remaining inner wall of the target bearing ring onto the jaws of the remaining chucks to facilitate the pre-fixing of larger bearing rings. Attached Figure Description
[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 pre-fixed claw structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the first spring structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the pre-fixed rod structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the second spring structure of this utility model.
[0022] In the diagram: 1. Chuck; 2. Pre-fixing claw; 3. First spring; 4. Pre-fixing rod; 5. Second spring; 21. First sliding rod; 22. First sliding sleeve; 23. Guide claw; 31. First spring body; 32. First bolt; 41. Second sliding rod; 42. Second sliding sleeve; 51. Second bolt; 52. Second spring body. Detailed Implementation
[0023] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.
[0024] like Figure 1 As shown, a positioning device for bearing processing includes a chuck 1. A pre-fixed jaw 2 is slidably mounted on the jaws of the chuck 1. A first spring 3 is mounted at the root of the pre-fixed jaw 2. The root of the first spring 3 is mounted on the jaws of the chuck 1. A pre-fixed rod 4 is slidably mounted on one of the jaws. A second spring 5 is provided at the root of the pre-fixed rod 4. The second spring 5 is mounted on one of the jaws of the chuck 1.
[0025] like Figure 1 and 2As shown, the pre-fixing claw 2 includes a first sliding rod 21, one end of which is fixedly connected to a first sliding sleeve 22. The first sliding sleeve 22 and the first sliding rod 21 are slidably mounted on the jaws of the chuck 1. A first spring 3 is inserted inside the first sliding sleeve 22. A guide claw 23 is fixedly connected to the end of the first sliding rod 21 facing away from the first sliding sleeve 22. When the target bearing ring is fitted onto the pre-fixing claw 2, the guide claw 23 guides the target bearing ring to fit over the first sliding rod 21, causing the inner wall of the target bearing ring to contract inward, so that the first sliding rod 21 overcomes the elastic force of the first spring 3 and adapts to the inner diameter of the target bearing ring.
[0026] like Figure 1 and 3 As shown, the first spring 3 includes a first spring body 31, one end of which is fixedly connected to a first bolt 32. The chuck 1 is slidably inserted into the first sliding sleeve 22. The first spring body 31 contacts the first sliding rod 21, and the first bolt 32 is threaded into the jaws of the chuck 1. The first spring body 31 provides an outward elastic force to the first sliding rod 21, keeping the pre-fixed jaw 2 extended.
[0027] like Figure 1 and 4 As shown, the pre-fixed rod 4 includes a second sliding rod 41, one end of which is fixedly connected to a second sliding sleeve 42. The second sliding rod 41 and the second sliding sleeve 42 are slidably installed in one of the jaws of the chuck 1, and the second spring 5 is movably inserted into the second sliding sleeve 42. The target bearing ring is placed on the outside of the second sliding rod 41, and then the target bearing ring is pulled, causing the target bearing ring to drive the second sliding rod 41 to retract into the jaw of the chuck 1, and the remaining inner wall of the target bearing ring is placed on the remaining jaws of the chuck 1.
[0028] like Figure 4 As shown, the end of the second slide rod 41 facing away from the second slide sleeve 42 has anti-slip grooves. The anti-slip grooves increase the friction between the second slide rod 41 and the target bearing ring.
[0029] like Figure 1 and 5 As shown, the second spring 5 includes a second bolt 51, which is threaded onto one of the jaws of the chuck 1. One end of the second bolt 51 is fixedly connected to a second spring body 52, which slides within the second sliding sleeve 42 and contacts the second sliding rod 41. The elastic force of the second spring body 52 acts on the second sliding rod 41, keeping the pre-fixed rod 4 in an extended state.
[0030] Working principle: When machining the outer circumference of the target bearing ring, the target bearing ring is placed on the pre-fixed claw 2, or the target bearing is placed on the jaws of the pre-fixed rod 4 and the chuck 1. The elastic force of the first spring 3 acts on the pre-fixed claw 2, so that the pre-fixed claw 2 is elastically supported inside the target bearing ring. Alternatively, the elastic force of the second spring 5 acts on the pre-fixed rod 4, so that the elastic force of the pre-fixed rod 4 acts on the bearing ring, so that the target bearing ring is pre-fixed on the pre-fixed claw 2 or the pre-fixed rod 4.
[0031] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.
[0032] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.
Claims
1. A positioning apparatus for bearing machining, comprising a chuck (1), characterized in that: A pre-fixed claw (2) is slidably mounted on the jaws of the chuck (1). A first spring (3) is mounted at the root of the pre-fixed claw (2). The root of the first spring (3) is mounted on the jaws of the chuck (1). A pre-fixed rod (4) is slidably mounted on one of the jaws. A second spring (5) is provided at the root of the pre-fixed rod (4). The second spring (5) is mounted on one of the jaws of the chuck (1).
2. A positioning apparatus for bearing machining according to claim 1, characterized in that: The pre-fixed claw (2) includes a first slide rod (21), one end of which is fixedly connected to a first slide sleeve (22). The first slide sleeve (22) and the first slide rod (21) are slidably mounted on the jaws of the chuck (1). The first spring (3) is inserted into the first slide sleeve (22). The end of the first slide rod (21) facing away from the first slide sleeve (22) is fixedly connected to a guide claw (23).
3. The positioning device for bearing processing according to claim 2, characterized in that: The first spring (3) includes a first spring body (31), one end of which is fixedly connected to a first bolt (32). The chuck (1) is slidably inserted into the first sliding sleeve (22). The first spring body (31) is in contact with the first sliding rod (21). The first bolt (32) is threadedly installed in the jaws of the chuck (1).
4. The positioning device for bearing processing according to claim 1, characterized in that: The pre-fixed rod (4) includes a second slide rod (41), one end of which is fixedly connected to a second slide sleeve (42). The second slide rod (41) and the second slide sleeve (42) are slidably installed in one of the jaws of the chuck (1), and the second spring (5) is movably inserted into the second slide sleeve (42).
5. A positioning device for bearing processing according to claim 4, characterized in that: The second slide rod (41) has anti-slip texture on the end facing away from the second slide sleeve (42).
6. A positioning device for bearing processing according to claim 4, characterized in that: The second spring (5) includes a second bolt (51), which is threaded onto one of the jaws of the chuck (1). One end of the second bolt (51) is fixedly connected to a second spring body (52), which slides inside a second sliding sleeve (42) and contacts a second sliding rod (41).