Numerical control machine tool hydraulic grabbing mechanism for machining

By introducing a closed-loop control system with pressure sensors and a fixed-focus lens into the hydraulic gripping mechanism of CNC machine tools, the problem of difficult clamping force monitoring has been solved, enabling precise gripping and protection of workpieces, and improving gripping stability and production efficiency.

CN224310175UActive Publication Date: 2026-06-02SUZHOU DESHUO INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU DESHUO INTELLIGENT TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing hydraulic gripping mechanisms for CNC machine tools lack a closed-loop control system with pressure sensors and controllers, making it impossible to monitor and control the clamping force in real time. This results in excessive or insufficient clamping force, affecting the stability of gripping and the safety of the workpiece.

Method used

A closed-loop control system using pressure sensors and controllers is employed, combined with a fixed-focus lens for workpiece image acquisition and position calculation. The workpiece is clamped by a hydraulic cylinder driven by a clamping block, and a rubber anti-slip pad is used to increase friction. The clamping force is monitored in real time to prevent excessive clamping force from causing workpiece deformation or damage.

Benefits of technology

It improves the accuracy and success rate of hydraulic gripping, ensures the safety of workpieces, avoids workpiece deformation or damage caused by excessive clamping force, and improves the efficiency of automated production.

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    Figure CN224310175U_ABST
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Abstract

The utility model relates to numerical control machine tool technical field especially relates to a numerical control machine tool hydraulic grabbing mechanism for machining, including numerical control machine tool, numerical control machine tool side wall fixedly connected with base, base upper end fixedly connected with mechanical arm, support, support side wall slidingly connected with two clamping blocks, support both sides all fixedly connected with hydraulic cylinder, hydraulic cylinder output end and clamping block side wall fixedly connected, the notched corner of clamping block side wall is provided with, the inside slidingly connected with movable plate of notched corner, support side wall inside fixedly connected with fixed focus lens, through pressure sensor real -time monitoring clamping force, when reaching setting threshold value, controller immediately stops hydraulic cylinder operation, avoids clamping force too big and leads to work piece deformation or damage, and the antiskid pad of rubber material not only improves the friction between movable plate and work piece, but also can effectively avoid the scratch or injury to work piece surface in clamping process.
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