Compensation process capable of increasing machine precision of numerical-controlled lathe and magnetic striction compensation mechanism

A technology of machining accuracy and compensation mechanism, applied in metal processing machinery parts, metal processing, metal processing equipment and other directions, can solve the problems of high cost, high price, unsuitable mechanism of action, etc., to suppress chatter, improve processing accuracy, Overcome the effects of technical sophistication
CN101337330AActive Publication Date: 2009-01-07JIANGSU HAIJIAN +1
0 Cites 30 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU HAIJIAN
Publication Date
2009-01-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a compensation method for enhancing the machining accuracy of a numerical control machine tool and a magnetostrictive compensation mechanism, in particular to a method for compensating the accuracy of the numerical control machine tool through combined feed and a modularized accuracy compensation mechanism. The method comprises the following steps: aiming to the machine tool, because of a geometrical error formed by a plurality of factors such as manufacture, abrasion, etc., feed errors in a full-stroke range are measured by a dual-frequency laser interferometer; the modularized compensation mechanism is driven to produce the corresponding displacement compensation quantity through power amplification after an error signal is pretreated; the micro-displacement feed is performed in cooperation with the macro displacement feed, so as to correct the accuracy of the machine tool. High-frequency vibration signals are superposed as a drive compensation mechanism for driving the voltage to perform vibration cutting, thereby effectively inhibiting a flutter phenomenon caused by friction during cutting, and enhancing the machining accuracy. An LVDT inductive displacement transducer is mounted at the tail end of an elastic micro-displacement mechanism for position feedback regulation; furthermore, the closed-loop control is formed through real-time control operation in a DSP chip to realize precise positioning.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The patent of the present invention relates to a method for improving machining accuracy of machine tools through compound feed and a modular error compensation device. Specifically, it relates to a method for compensating machine tool errors through micro-displacement compensation and vibration cutting generated by giant magnetostrictive actuators. And a method and a device for improving the machining accuracy of a machine tool. Background technique

[0002] In the research and development process of precision and ultra-precision machining technology, precision and ultra-precision machine tools play a decisive role. The accuracy of traditional ultra-precision machine tools is mainly achieved by the accuracy of the reference components of the machine tool. However, it is very difficult to improve the machining accuracy by continuing to improve the accuracy of ultra-precision machine tool components, and some errors in machining are difficult to elimina...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More