An Online Dynamic Balance Measurement and Control System for High Precision Machining Spindle

Abstract

The invention discloses an online dynamic balance measurement and control system of a high-precision machining spindle. The online dynamic balance measurement and control system comprises a signal conditioning circuit, a signal acquisition circuit, a DSP circuit, a human-computer interaction terminal, a single-chip microcomputer control circuit, a dynamic balance control terminal and a signal detection circuit, wherein the dynamic balance control terminal is used for controlling dynamic balance of the spindle, and the signal detection circuit is used for detecting a spindle displacement signal, an acceleration signal and a temperature signal of the position required by a user; the output end of the signal detection circuit is connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is connected with the input end of the signal acquisition circuit, the control end of the signal acquisition circuit is connected with the human-computer interaction terminal, the DSP circuit is connected with the signal acquisition circuit, the human-computer interaction terminal is connected with the DSP circuit and the single-chip microcomputer control circuit, and the output end of the single-chip microcomputer control circuit is connected with the input end of the dynamic balance control terminal. The online dynamic balance measurement and control system can perform online dynamic balance measurement and control on the machining spindle visually, accurately and quickly.

Description

Technical field [0001] The invention belongs to the technical field of spindle high-speed dynamic balance, and relates to an online dynamic balance measurement and control system for high-precision machining spindles. Background technique [0002] The development direction of modern machining is high-speed, high-precision, and high-efficiency. The high-speed of machine tools has become the current development trend of machine tools. This trend puts forward higher requirements for machine tools, and the spindle is the core component of machine tools to a large extent Determines the processing performance of the machine tool. In the actual processing engineering, due to the influence of factors such as manufacturing error, material unevenness and installation error, the spindle must have an imbalance. Unbalance usually leads to spindle vibration, which is particularly obvious on high-speed machine tools. Excessive spindle vibration will directly affect machining accuracy, and at t...

AI Technical Summary

Problems solved by technology

[0004] First of all, the structure of the traditional system is relatively concentrated. Usually, only a single processing chip is used to complete the detection, control and data calculation and processing functions of the spindle running state. , slow response speed and many other deficiencies, when testing the dynamic characteristics of the spindle, if the spindle speed is high, the relative recognition accuracy of the system will be reduced when the operating frequency of the system is fixed throughout the cycle, and the system will be in the process of data processing. In the process, other functions must be performed at the same time, which leads to a long system running time, and the traditional system cannot be used to achieve accurate performance testing and dynamic balance control of the spindle dynamic balance; and the system management is complicated, and it is not easy to optimize each function separately. And the stability is not high, as long as there is a problem in one functional link, it will lead to the collapse of the entire system;

[0005] Secondly, the existing spindle dynamic balance measurement and control system is not equipped with an external data communication interface, and cannot exchange data with other equipment such as the CNC system. It is an isolated system that cannot be used in conjunction with other equipment or systems, and human-computer interaction The ability is poor, and real-time command input and result display cannot be performed during the running process. The operation is complicated and not intuitive enough

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