A positioning and machining device suitable for thin-walled cylindrical parts

By employing an internal and external collaborative support structure and a flexible contact design, the deformation problem of thin-walled cylindrical parts under external pressure for positioning was solved, achieving stable positioning and high-precision machining, and improving the convenience and efficiency of multi-specification production.

CN224407342UActive Publication Date: 2026-06-26XINGWEN COUNTY VOCATIONAL & TECHNICAL SCHOOL SICHUAN PROVINCE +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGWEN COUNTY VOCATIONAL & TECHNICAL SCHOOL SICHUAN PROVINCE
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, thin-walled cylindrical parts are prone to deformation or damage due to pressure concentration when positioned by applying pressure to the outer wall, which cannot meet the requirements for stable clamping.

Method used

An internal and external coordinated support structure is adopted. The outer peripheral positioning component and the inner support positioning component form opposing positioning constraints at the same radial position of the thin-walled cylindrical part. Combined with the four-point contact support of the support component and the flexible contact of the inner expansion plate, the contact stress is evenly distributed.

Benefits of technology

It significantly reduces the risk of deformation of thin-walled cylindrical parts due to unilateral pressure, improves machining accuracy and quality, and enhances the convenience of changeover and operational efficiency in multi-specification production.

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Abstract

The utility model discloses a positioning machining device suitable for thin -walled cylinder class spare, the utility model relates to mechanical engineering and manufacturing technical field, scheme includes: a positioning machining device suitable for thin -walled cylinder class spare, include: base, support subassembly, support subassembly installs on the base, and support subassembly is used for providing support to thin -walled cylinder class spare, peripheral location subassembly, peripheral location subassembly installs on the base, and peripheral location subassembly arranges along the outside of support subassembly, inner support location subassembly, inner support location subassembly installs on the base, and inner support location subassembly arranges along the inside of support subassembly, wherein, peripheral location subassembly and inner support location subassembly form the opposite positioning constraint in the same radial position of thin -walled cylinder class spare, to realize the positioning clamping of cooperation, can improve the positioning mode to thin -walled cylinder class spare through the inside and outside cooperative support structure, and reduce the deformation risk that the outer wall pressurization leads to.
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