Back-pulling double-claw multi-degree-of-freedom limiting positioning tool

By designing a pull-back double-jaw multi-degree-of-freedom limiting and positioning fixture, multi-degree-of-freedom limiting is achieved by utilizing structures such as limiting grooves, clamping seats, and inclined surfaces. This solves the problems of difficult positioning and poor accuracy in traditional clamping methods, and improves the machining efficiency and accuracy of tapered parts such as shaft forks.

CN224488432UActive Publication Date: 2026-07-14ANHUI KANGNI PRECISION MECHANICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI KANGNI PRECISION MECHANICS CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional machine tool clamping methods cannot achieve rapid positioning and clamping of tapered parts such as shaft forks in mass production, resulting in low machining accuracy and low efficiency.

Method used

Design a pull-back double-jaw multi-degree-of-freedom limiting and positioning fixture, including a pull-back chuck, a clamping block, a first positioning seat, a second positioning seat, and a conical positioning block. Multi-degree-of-freedom limiting is achieved through structures such as limiting grooves, clamping seats, square through grooves, and inclined surfaces. The clamping and positioning are achieved by adjusting the degree of contact of the conical surface with shims.

Benefits of technology

It achieves high-precision and rapid positioning and clamping, improves processing efficiency and product competitiveness, and meets the processing requirements of high-precision products.

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Abstract

The utility model discloses a kind of rear pull type double-claw multi-degree-of-freedom limit positioning tool, including rear pull type chuck, two clamping blocks, first locating seat, second locating seat and two conical surface locating blocks;Limiting groove is opened at rear pull type chuck central position, two clamping seats are symmetrically set with limiting groove as center, two clamping blocks are respectively fixed on clamping seat, by first locating seat, second locating seat and conical surface locating block, product part is positioned in middle, cooperate clamping block clamping product part, limit product part and move rotation in axial, longitudinal direction, realize the limit of multi-degree-of-freedom, guarantee the reliable fast of positioning, by gasket adjust the gap between second locating seat and first locating seat, the gap between second locating seat and conical surface locating block, and then adjust the conical surface adhesion degree of product part to carry out clamping and positioning, ensure in middle positioning.
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