A pin ejection device

CN224274017UActive Publication Date: 2026-05-26GEZHOUBA ZHONGXIANG CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GEZHOUBA ZHONGXIANG CEMENT CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing pin ejection devices struggle to achieve precise alignment between the pin and the ejection shaft, and the rigid pushing structure of traditional devices easily leads to workpiece damage.

Method used

A laser emitter is used to achieve precise alignment between the pin and the ejector shaft, and a spring is used to buffer the impact force during the ejection process. A flexible clamping structure is designed to protect the workpiece.

Benefits of technology

It improved the success rate of pin ejection, reduced equipment failure rate and part damage rate, and enhanced disassembly efficiency and workpiece protection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224274017U_ABST
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Abstract

This utility model belongs to the field of pin machining technology, and provides a pin ejection device. The ejection device includes an ejection seat, with an ejection cylinder and a clamping seat respectively located above and below the ejection seat. The drive shaft of the ejection cylinder is equipped with an ejection shaft. The clamping seat includes a clamping seat and a base arranged above and below. A pair of guide rods are slidably arranged on the base. The bottom of the guide rods is limited and installed below the base. A support plate is provided on the top of the guide rods. A spring spring is provided on the guide rods between the support plate and the base. A locking screw is provided on the clamping seat opposite the support plate. An auxiliary component is provided on the ejection seat directly below the ejection shaft. First, the workpiece is placed on the base, and the position of the workpiece is adjusted so that the ejection shaft and the pin are aligned vertically. Then, the locking screw is rotated to fix the workpiece. Finally, the ejection cylinder is activated, and the ejection cylinder drives the ejection shaft to move downward, smoothly ejecting the pin from the workpiece.
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