An automatic electrode tube changing and locking mechanism for electrical discharge drilling

By designing a locking mechanism for the shaft bearing mounting seat and guide rod cylinder in the EDM drilling machine, and utilizing the cooperation of the locking spring and the spring, the problem of insecure locking in the existing technology is solved, achieving a more efficient locking effect and extending the service life of the equipment.

CN224273602UActive Publication Date: 2026-05-26CHENZHOU JUMENG CNC MACHINE TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENZHOU JUMENG CNC MACHINE TOOL CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing EDM drilling machines are limited by the hardness of metal materials when machining small holes, which makes it impossible for the locking mechanism to effectively guarantee quality and service life.

Method used

The locking mechanism consists of a rotating shaft bearing mounting seat, a guide rod cylinder, a locking nozzle lifting sleeve, and a spring. Through the cooperation of the locking nozzle spring seat and the spring, the copper tube is locked, enhancing the locking effect.

Benefits of technology

It improves the locking effect, ensures the normal operation of the equipment, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224273602U_ABST
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Abstract

This utility model discloses an automatic electrode changing nozzle locking mechanism for EDM drilling, including a rotating shaft bearing mounting base B and a spring. The left side of the rotating shaft bearing mounting base B is provided with a guide rod cylinder mounting base. The rotating shaft bearing mounting base B has two guide rod cylinders. A cylinder connecting plate is connected to the bottom of the rotating shaft bearing mounting base B. A rotary lifting sliding bearing is movably connected to the bottom of the cylinder connecting plate. A steel pipe rotating shaft is movably connected to the rotary lifting sliding bearing. A locking nozzle lifting sleeve is movably connected to the steel pipe rotating shaft. A manual grip wheel is fitted on the steel pipe rotating shaft. This utility model uses two springs for locking, increasing the locking effect and further ensuring the normal operation of the equipment.
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