A positioning device for piston machining

By combining a vertical moving component and a lifting component with a pressure detection component in the positioning device, the problem of the piston processing positioning device in the prior art being unable to automatically adjust is solved, realizing automatic adaptation and precise positioning during the piston processing process, and improving processing efficiency and accuracy.

CN224274133UActive Publication Date: 2026-05-26ZHUJI BOHUI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUJI BOHUI AUTO PARTS CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing piston machining positioning devices cannot automatically adjust according to piston specifications, resulting in the need for manual adjustment of fixtures or replacement of tooling, which cannot meet the precise positioning requirements of pistons of different specifications.

Method used

The positioning device, which combines a vertical moving component, a lifting component, and a pressure detection component, adjusts the placement plate and the fixed plate by driving the lead screw and sliding sleeve with a servo motor. Combined with a hydraulic push rod and a displacement sensor, it automatically adjusts the piston position to maintain horizontal alignment.

Benefits of technology

This technology enables piston processing without manual adjustment of the fixture, automatically adapting to pistons of different specifications, improving positioning accuracy and processing efficiency, and avoiding piston damage or shaking caused by improper clamping force.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224274133U_ABST
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Abstract

This utility model discloses a positioning device for piston machining, including a mounting base, a vertical moving component on the top of the mounting base, a placement plate on the top of the mounting base via the vertical moving component, a lifting component on the top of the mounting base, and a moving plate on the top of the mounting base via the lifting component. A pressure detection component is installed inside the moving plate. The vertical moving component can move the placement plate upwards, and the lifting component, via the pressure detection component, can move a fixed plate upwards. The lifting component detects the distance the fixed plate moves upwards, allowing the placement plate and fixed plate to be adjusted according to the piston specifications and clamping the piston. This ensures the piston is horizontally aligned with the machining head, avoiding the need for manual adjustment of the fixture or replacement of tooling when the piston radius changes. This facilitates adjustment according to piston specifications, making the positioning device more convenient to use.
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