A high concentricity ring forming die

By adopting a rigid positioning structure between the lower die and the base in the ring forming mold, the deformation error caused by die wobbling is solved, concentricity and stability are improved, maintenance costs are reduced, and it is suitable for mass production.

CN224487398UActive Publication Date: 2026-07-14ZHEJIANG RUIHONG ELECTRICAL LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RUIHONG ELECTRICAL LTD
Filing Date
2025-07-31
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing ring forming dies, the lack of a fixed structure between the die and the punch leads to shaking and tilting during processing, resulting in deformation errors, poor concentricity, and easy damage to the O-ring, resulting in high maintenance costs.

Method used

The combination structure of the lower mold and the base is adopted. The outer wall of the ring-shaped workpiece is close to the inner wall of the lower mold, and the inner wall is close to the outer wall of the base for rigid positioning. The upper mold is moved down to limit the position, ensuring that the inner and outer walls of the workpiece are positioned at the same time and avoiding deformation of the elastic element.

Benefits of technology

It improves the concentricity and stability of ring-shaped workpieces, reduces the possibility of deformation and displacement, simplifies the operation process, reduces maintenance costs, and is suitable for mass production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224487398U_ABST
    Figure CN224487398U_ABST
Patent Text Reader

Abstract

The utility model relates to mould processing technical field especially relates to a kind of high concentricity ring forming die. Including: lower mould, the base being arranged in the inside of lower mould and the upper die being arranged in the top of base, to be processed annular workpiece is installed between the base and the lower mould, the outer wall of annular workpiece is arranged in close proximity to the inner wall of lower mould, the inner wall of annular workpiece is arranged in close proximity to the outer wall of base, the upper die continuously moves down until its lower end surface is butted on the upper end surface of annular workpiece.The utility model provides a kind of high concentricity ring forming die with good stability, product precision is high and quality is good, low in cost, simple structure and easy to disassemble and assemble and other advantages.
Need to check novelty before this filing date? Find Prior Art