A closing tool for self-locking nuts

By designing a self-locking nut closing fixture, and utilizing the rotation of the support and limiting components and the guidance of the hydraulic cylinder, the automatic unloading and centralized storage of the self-locking nuts are achieved, solving the problem of poor closing efficiency in the existing technology and improving processing efficiency and quality.

CN224444400UActive Publication Date: 2026-07-03GUIZHOU DONGTI PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU DONGTI PRECISION MFG CO LTD
Filing Date
2025-06-12
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing self-locking nut closing tooling is inefficient during continuous closing processes, and the self-locking nut is not easy to remove quickly, which affects processing efficiency.

Method used

A self-locking nut closing fixture was designed, including a housing, a pressure ring, a rotating column, and a connecting plate. The self-locking nut is automatically unloaded by rotating the support and limiting component. Combined with the guiding design of the hydraulic cylinder and sliding rod, the pressure ring is aligned with the support and limiting component, and the closed self-locking nut is collected in a collection box.

Benefits of technology

It improves the efficiency of self-locking nut finishing, reduces manual operation processes, ensures processing quality, and facilitates subsequent processing or packaging.

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Abstract

This utility model discloses a finishing fixture for a self-locking nut, comprising a housing and a pressure ring. The pressure ring is located above the housing, and a finishing groove is formed at the bottom of the pressure ring. A rotating column is rotatably connected between the inner walls of the two sides of the housing via bearings. A connecting plate is fixedly connected to the outer surface of the rotating column, and multiple support and limiting components are provided on the outer surface of the connecting plate. Each support and limiting component includes a support block, which is fixedly connected to the outer surface of the connecting plate. A support seat is fixedly connected to the upper surface of the support block. This utility model, through the rotatable design of the connecting plate, allows the self-locking nut to fall along the guide of the support and limiting components when the support and limiting components rotate below the rotating column, directly unloading the nut. This avoids the need for operators to remove the finished self-locking nut, reduces the processing steps, speeds up the finishing process, and facilitates operation.
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