A tooling for machining thin-walled bearing rings

Abstract

This invention provides a machining fixture for thin-walled bearing rings, including a base with an inner support ring on one side and an adjustment mechanism mounted on the base. The inner support ring includes several support segments, each with a deformation groove at its root. The adjustment mechanism includes an adjustment rod with a rotatable limit seat mounted on one end of the rod extending into the inner support ring. A support block is mounted on the limit seat. The position of the support block is adjusted by the adjustment rod to simultaneously open each support segment, thereby allowing each support segment to simultaneously support the inner wall of the thin-walled bearing ring workpiece. This invention features a reasonable structural design. In application, the thin-walled bearing ring workpiece is first fitted onto the outside of the inner support ring. Then, the adjustment mechanism tensions each support segment of the inner support ring, utilizing the support segments to support the inner wall of the workpiece, maintaining structural stability. During machining, deformation is less likely to occur, improving product machining accuracy and ensuring a high yield rate.

Description

Technical Field

[0001] This invention belongs to the technical field of bearing ring products, and in particular relates to a tooling for machining thin-walled bearing rings. Background Technology

[0002] Thin-walled bearing rings are annular rings primarily used to support and position the moving parts of bearings, such as rolling elements or sliding elements. Their structure is made of a single material with thin walls to accommodate different types of bearings and installation requirements. Their structural principle includes positioning and fixing, reducing friction and wear, transmitting loads, and improving bearing performance. Through mating with a shaft or housing, thin-walled bearing rings ensure the bearing's position is fixed, preventing misalignment or wobble, while providing a good support surface, reducing friction and wear, and transmitting the load on the bearing. However, thin-walled bearing rings are difficult to clamp and fix during manufacturing and are prone to deformation, making it difficult to guarantee machining accuracy. Therefore, it is necessary to improve existing tooling. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a tooling for machining thin-walled bearing rings.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A machining fixture for thin-walled bearing rings includes a base, an inner support ring on one side of the base, and an adjustment mechanism mounted on the base. The inner support ring includes several support plates, each with a deformation groove at its root. The adjustment mechanism includes an adjustment rod, one end of which extends into the inner support ring and is rotatably mounted with a limiting seat. A support block is mounted on the limiting seat. The position of the support block is adjusted by the adjustment rod to simultaneously open each support plate, thereby allowing each support plate to simultaneously support the inner wall of the thin-walled bearing ring workpiece.

[0006] Furthermore, the adjusting rod is a screw screw that is threaded onto the base, and the adjusting rod is arranged axially along the inner support ring.

[0007] Furthermore, the axis of the adjusting rod coincides with the axis of the inner support ring.

[0008] Furthermore, the wall thickness of each supporting petal gradually decreases from its root to its tip.

[0009] Furthermore, the inner diameter of the inner support ring gradually increases from the root to the tip of the support ring.

[0010] Furthermore, each support piece is evenly distributed around the axis of the adjusting rod.

[0011] Furthermore, an adjustment cap is provided at the end of the adjustment rod that is different from the inner support ring.

[0012] Furthermore, the adjustment cap is provided with anti-slip texture.

[0013] Furthermore, the inner support ring includes 3-5 support petals.

[0014] Compared with existing technologies, the present invention has the following advantages:

[0015] The present invention has a reasonable structural design. When applied, the thin-walled bearing ring workpiece is first fitted onto the outside of the inner support ring. Then, the support plates of the inner support ring are tensioned by the adjustment mechanism. The support plates of the inner support ring provide support to the inner wall of the workpiece, keeping the workpiece structure stable. During the machining process, it is not easy to deform, which can improve the product machining accuracy and ensure the pass rate. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure created by this invention;

[0018] Figure 2 A three-dimensional structural schematic diagram created for this invention;

[0019] Figure 3 A structural cross-sectional view created for this invention;

[0020] Figure 4 for Figure 3 A schematic diagram after removing the adjustment mechanism;

[0021] Figure 5 This is a schematic diagram of the adjusting rod portion in this invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Base; 2-Inner support ring; 3-Adjustment mechanism; 4-Support plate; 5-Deformation groove; 6-Adjustment rod; 7-Limit seat; 8-Support block; 9-Adjustment cap; 10-Anti-slip texture; 11-Raised texture; 12-Milled plane. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, 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, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] A tooling for machining thin-walled bearing rings, such as Figures 1 to 5 As shown, the fixture includes a base 1, an inner support ring 2 on one side of the base, and several support plates 4. Each support plate has a deformation groove 5 at its root. An adjustment mechanism 3 for adjusting the tension of the support plates is installed on the base. For example, the base is a plate-like structure, with the axis of the inner support ring perpendicular to the plate-like base surface. To facilitate clamping and fixing the fixture, in an optional embodiment, several milled planes 12 are provided on the outer circumferential surface of the base.

[0029] As a specific structural design, the adjustment mechanism includes an adjustment rod 6. One end of the adjustment rod extends into the inner support ring and is rotatably mounted on a limiting seat 7. A support block 8 is installed on the limiting seat. The position of the support block is adjusted by the adjustment rod to simultaneously open each support piece, thereby enabling each support piece to simultaneously support the inner wall of the thin-walled bearing ring workpiece.

[0030] The adjusting rod is a threaded rod screwed onto the base, and the adjusting rod is arranged axially along the inner support ring. Preferably, the axis of the adjusting rod coincides with the axis of the inner support ring. Support blocks are evenly distributed around the adjusting rod (the limiting seat). When the adjusting rod is screwed on, each support piece can be tensioned simultaneously, thereby ensuring that each support piece simultaneously supports the inner wall of the thin-walled bearing ring and avoids workpiece deformation. An adjusting cap 9 is provided at the end of the adjusting rod that is not connected to the inner support ring. To facilitate screwing on the adjusting rod, anti-slip grooves 10 are provided on the adjusting cap.

[0031] As the support plates are gradually tightened by the support blocks, the deformation grooves, acting as the weakest points of the support plates, allow the support plates to deform at these groove locations, thus meeting the requirement of clamping the workpiece from within. The wall thickness of each support plate gradually decreases from its root to its tip. The inner diameter of the inner support ring gradually increases from its root to its tip. By turning the adjusting rod, the support blocks are moved from the tip to the root of the inner support ring, thereby gradually opening up each support plate. Typically, the support plates are evenly distributed around the axis of the adjusting rod. For example, the inner support ring includes 3-5 support plates.

[0032] In an optional embodiment, each support plate tip has a contact portion at its free end, and the outer wall of the contact portion has several raised grooves 11, the length direction of each raised groove being consistent with the axial direction of the support ring. When each support plate is opened, the contact portion of the support plate directly contacts the inner wall of the thin-walled bearing ring, improving the stability of the workpiece and tooling connection and ensuring machining accuracy.

[0033] The present invention has a reasonable structural design. When applied, the thin-walled bearing ring workpiece is first fitted onto the outside of the inner support ring. Then, the support plates of the inner support ring are tensioned by the adjustment mechanism. The support plates of the inner support ring provide support to the inner wall of the workpiece, keeping the workpiece structure stable. During the machining process, it is not easy to deform, which can improve the product machining accuracy and ensure the pass rate.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for machining thin-walled bearing rings, characterized in that: The device includes a base, an inner support ring on one side of the base, and an adjustment mechanism installed on the base. The inner support ring includes several support plates, each with a deformation groove at its root. The adjustment mechanism includes an adjustment rod, one end of which is inserted into the inner support ring and rotatably mounted on a limit seat. A support block is installed on the limit seat. The position of the support block is adjusted by the adjustment rod to simultaneously open each support plate, thereby allowing each support plate to simultaneously support the inner wall of the thin-walled bearing ring workpiece.

2. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: The adjusting rod is a screw that is threaded onto the base, and the adjusting rod is arranged axially along the inner support ring.

3. The tooling for machining thin-walled bearing rings according to claim 2, characterized in that: The axis of the adjusting rod coincides with the axis of the inner support ring.

4. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: The wall thickness of each supporting lobe gradually decreases from its root to its tip.

5. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: The inner diameter of the inner support ring gradually increases from the root to the tip.

6. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: Each support piece is evenly distributed around the axis of the adjusting rod.

7. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: An adjustment cap is provided at the end of the adjustment rod that is different from the inner support ring.

8. The tooling for machining thin-walled bearing rings according to claim 7, characterized in that: The adjustment cap has anti-slip texture.

9. The tooling for machining thin-walled bearing rings according to claim 1, characterized in that: The inner support ring includes 3-5 support petals.

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