A positioning jig for a large bending member

By designing a positioning fixture for large bending parts, and using a combination of a lower template and an upper pressure plate for segmented clamping and a cylinder-driven clamping mechanism, the displacement and deformation problems of traditional fixtures when positioning large bending parts are solved, thereby improving processing accuracy and consistency and reducing rework costs.

CN224526854UActive Publication Date: 2026-07-21ZHONGSHAN MINGYA ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN MINGYA ELECTRONICS CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional fixtures are prone to displacement and deformation when positioning large-bend parts, resulting in unstable machining accuracy, affecting surface treatment quality and increasing rework costs.

Method used

Design a positioning fixture for large bending parts. The fixture uses a lower template and an upper pressure plate to clamp the bending part, the handle part and the outer surface of the workpiece in sections. The clamping mechanism is driven by a cylinder and the top sleeve and fastening bolts are used to maintain stability and prevent displacement and loosening during the processing.

Benefits of technology

It achieves stable positioning of complex three-dimensional structures, improves processing accuracy and consistency, reduces the time cost of manual adjustment, and ensures the quality of surface treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a positioning clamp for a large bending part, which comprises a lower die plate for segmentally clamping the bending part, the handle part and the appearance surface of the large bending part, a lower die base arranged at the lower end of the lower die plate, a gas cylinder for clamping the lower die plate and the upper pressing plate, the gas cylinder is provided with a top sleeve which can be screwed into a fastening bolt, and the top sleeve and the fastening bolt at least penetrate the lower die plate and the upper pressing plate, so that stable positioning of a complex three-dimensional structure is realized, and surface treatment errors caused by displacement or vibration in subsequent processing such as polishing, polishing and wire drawing are effectively avoided.
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