Machine cutting flutter on-line intelligent control system

An intelligent control system and flutter technology, applied in non-rotational vibration suppression, manufacturing tools, metal processing machinery parts, etc., can solve the difficulties in the mathematical model of the cutting processing system, the inability to control cutting stability online, and the inability to eliminate chatter phenomena And other issues

Inactive Publication Date: 2004-07-28
BEIJING UNIV OF TECH
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Problems solved by technology

However, due to the complexity of the cutting processing system, it is very difficult to establish an accurate mathematical model of the system. At the same time, the serious lag of the respon...

Method used

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  • Machine cutting flutter on-line intelligent control system
  • Machine cutting flutter on-line intelligent control system
  • Machine cutting flutter on-line intelligent control system

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Embodiment Construction

[0062] The present invention can be used in boring machining. Because boring is inner hole processing, the boring bar is generally designed as a slender cantilever beam structure, which has poor rigidity and is prone to bending deformation under force, and chatter is often unavoidable when subjected to dynamic cutting forces. In order to overcome the weakness that the rigidity of the boring bar cannot be fundamentally improved, the present invention adds a smart material——electrorheological material to its structural design. By applying an electric field to the electrorheological material, the overall dynamic characteristics of the boring bar can be changed online, combined with flutter The online prediction technology adjusts the dynamic characteristics of the boring bar online according to the sensor signal to avoid the occurrence of chatter.

[0063] In this embodiment, the system is based on Figure 4 Assembled according to conventional technology, the accessories used an...

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Abstract

The present invention relates to an on-line intelligent control system for inhibiting cutting flutter of machine tool. On-line regulation of dynamic characteristics of machining system is implemented by utilizing mechanical structure containing electro-rheologic material. The method designs an intelligent boring rod whose dynamic characteristics can be quickly regulated on-line by using electro-rheologic material in the boring and cutting system. When the different electric field intensities from zero change to 2000 V/mm can be applied on the electro-rheological material, it can make the original frequency of the boring rod have the change range of 30 Hz. It can be used for quickly on-line regulating dynamic characteristics of boring-cutting system to ensure maching quality and efficiency.

Description

[0001] The on-line intelligent control system for machine tool cutting chatter of the present invention is a divisional application of an application entitled "Online Intelligent Control Method and System for Machine Tool Cutting Chatter", the application date of this case: November 19, 2001, application number : 01144486.x. technical field [0002] The on-line intelligent control method and system of machine tool cutting chatter belong to the field of mechanical manufacturing automation and intelligent manufacturing, mainly to ensure the processing stability of metal cutting processing, avoid self-excited vibration and chatter during processing, and ensure the quality of processed parts and cutting tools. life. This technology is suitable for precision flexible manufacturing and processing systems with a high degree of automation, and can be widely used in industries such as aviation, aerospace and automobiles that require precision machining. Background technique [0003]...

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Application Information

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IPC IPC(8): B23Q11/00F16F15/03
Inventor 王民费仁元
Owner BEIJING UNIV OF TECH
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