Machine tool spindle operation state monitoring device

By installing a locking mechanism and a vibration sensor on the outside of the machine tool spindle, the problem of low accuracy in traditional monitoring is solved, and high-precision monitoring and fault early warning of spindle vibration are achieved.

CN121733338APending Publication Date: 2026-03-27SUZHOU XUANBAO TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional machine tool spindle operation status monitoring suffers from low vibration monitoring accuracy and cannot effectively detect slight spindle vibrations because vibration sensors cannot be directly installed on the high-speed rotating spindle.

Method used

A machine tool spindle operation status monitoring device was designed. The locking mechanism is sleeved on the outside of the machine tool spindle body through the installation mechanism. Vibration is transmitted by the inner and outer rings of the bearing and monitored in conjunction with a vibration sensor. Data acquisition and processing are carried out by combining photoelectric temperature sensor and photoelectric speed sensor.

Benefits of technology

It improves the accuracy of spindle vibration monitoring, enabling timely detection of minor vibrations and ensuring normal machine tool operation and fault warning.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121733338A_ABST
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Abstract

The invention provides a machine tool spindle running state monitoring device which comprises a numerical control machine tool assembly and a mounting mechanism, and the numerical control machine tool assembly comprises a machine tool body, a machining table, a machine tool spindle body and a spindle connecting frame; the machining table is installed at the bottom of the inner side wall of the machine tool body. The locking mechanism is arranged on the outer side of the machine tool spindle body in a sleeving mode through the mounting mechanism, and then the locking mechanism is connected with the machine tool spindle body, so that the working machine tool spindle body drives the bearing inner ring to rotate at the same time, and when the machine tool spindle body vibrates, vibration is conducted through the bearing inner ring and the bearing outer ring; the vibration sensor is arranged on the bearing inner ring and is matched with the vibration sensor to collect vibration data, so that the vibration sensor can be matched with the bearing inner ring and the bearing outer ring to monitor vibration generated when the main shaft works, the monitoring and detecting precision is improved, slight shaking of the main shaft can be monitored, and faults can be found and processed in time.
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