End face supporting structure for machining large-curvature spherical base face of rolling body
By designing a stepped end-face support structure to expand the contact area, the problems of wear and unstable positioning in the machining of large curvature spherical base surfaces were solved, thereby improving product quality and efficiency.
Patent Information
- Application Number
- CN202422777632.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Existing end-face support structures are prone to wear when machining large-curvature spherical base surfaces, leading to unstable positioning, affecting product quality and increasing scrap rate, and are also costly and have low processing efficiency.
The stepped end-face support structure, consisting of small and large cylinders, is adopted. The contact area is expanded by a 1:2 ratio design, transforming it into surface-to-surface contact, which reduces wear and improves positioning stability.
It improves the stability of product processing and the tooling lifecycle, reduces the frequency of tooling replacement, enhances product quality and production efficiency, and reduces enterprise costs.
Smart Images
Figure CN223506961U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of roller processing and manufacturing technology, specifically relating to an end face support structure for processing the large curvature spherical base surface of rolling elements. Background Technology
[0002] The grinding principle of spherical base surface grinding equipment is based on the rotation of the pressure roller to drive the product's follower. The pressure roller, end face support, and horizontal support restrict five degrees of freedom in three directions to position the product. Currently, the end face support is mainly used for processing products with small curvature of rolling elements. Its mechanical principle utilizes point contact. This contact method results in preferential wear at higher points, leading to faster wear of the end face support during processing, and a gradual loss of positioning accuracy after wear. When used for processing products with large curvature, the contact between the end face support and the spherical base surface becomes an approximate point-to-surface contact. Because the curvature of the spherical base surface is too large, it can be approximated as a plane, and the end face support as a point, forming a point-to-surface contact. This causes the product to swing up and down in the Z-axis direction of the spatial coordinate during processing and positioning. This results in unstable grinding of the product center, leading to out-of-tolerance curvature and central concavity in the pattern. When such problems occur, they affect product quality, increase scrap rate, reduce product fit-up rate, increase production costs, and reduce processing efficiency. Summary of the Invention
[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to propose an end-face support structure for machining the large curvature spherical base surface of rolling elements.
[0004] To achieve the above objectives, this utility model adopts the following technical solution:
[0005] An end-face support structure for machining the base surface of a large curvature sphere of a rolling element is disclosed. The end-face support structure consists of two cylinders with different diameters, namely a small cylinder and a large cylinder. The small cylinder and the large cylinder are integrally formed in a stepped structure. The height ratio of the small cylinder to the large cylinder is 1:2. The upper surface of the small cylinder is a convex surface for contacting the product. The small surface of the small cylinder is a reference surface for contacting the machine tool.
[0006] The small cylinder and the large cylinder have interconnected threaded holes at their centers for connection to the machine tool.
[0007] The small cylinder has a tight through hole.
[0008] This invention proposes an end-face support structure for machining the large curvature ball base surface of rolling elements. The entire structure is machined into a stepped end-face support by two different radius sections at a 1:2 ratio, transforming point contact into a near-surface contact, increasing the contact area, reducing wear on the end-face support during machining, lowering costs, avoiding frequent tooling changes, and ensuring product positioning stability. This approach ensures both product machining stability and extends the tooling's service life during machining.
[0009] After structural optimization, the types of products that can be processed have been expanded, enabling the processing of products with large curvature spherical base surfaces.
[0010] After structural optimization, product quality is improved, waste is reduced, product matching rate is increased, resulting in reduced production costs and improved processing efficiency for enterprises. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] In the diagram: 1. Small cylinder, 2. Large cylinder, 3. Threaded hole, 4. Through hole. Detailed Implementation
[0013] The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
[0014] like Figure 1 As shown, an end-face support structure for machining the large curvature spherical base surface of rolling elements is provided. The end-face support structure consists of two cylinders with different diameters, namely a small cylinder 1 and a large cylinder 2. The small cylinder 1 and the large cylinder 2 are integrally formed in a stepped structure. The height ratio of the small cylinder 1 and the large cylinder 2 is 1:2. The upper surface of the small cylinder 1 is a convex surface for contacting the product. The small surface of the small cylinder serves as a reference surface for contacting the machine tool, transforming point contact into a similar surface-to-surface contact, increasing the contact area, reducing wear of the end-face support during machining, reducing costs, and avoiding frequent tooling changes.
[0015] The small cylinder 1 and the large cylinder 1 have interconnected threaded holes 3 at their centers for connection with the machine tool.
[0016] The small cylinder 1 has a tight through hole 4.
Claims
1. An end-face support structure for machining the large curvature spherical base surface of rolling elements, characterized in that: The end-face support structure consists of two cylinders with different diameters, namely a small cylinder and a large cylinder; the small cylinder and the large cylinder are integrally formed in a stepped structure; the height ratio of the small cylinder and the large cylinder is 1:2; the upper surface of the small cylinder is a convex surface for contacting the product; the small surface of the small cylinder is a reference surface for contacting the machine tool.
2. The end-face support structure for machining the large curvature spherical base surface of a rolling element as described in claim 1, characterized in that: The small cylinder and the large cylinder have interconnected threaded holes at their centers for connection to the machine tool.
3. The end-face support structure for machining the large curvature spherical base surface of a rolling element as described in claim 1, characterized in that: The small cylinder has a tight through hole.