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Tester and testing method for numerically-controlled machine tool virtual transmission chain

A technology of CNC machine tools and testing methods, applied in the directions of instruments, simulators, program control, etc., can solve the problems of difficulty in use, difficulty in evaluating the performance of virtual transmission chains, and high testing costs

Active Publication Date: 2015-05-27
XI AN JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some test instruments on the market can obtain the information of the end of the servo shaft through external sensors to analyze the characteristics of the transmission chain, they only perform corresponding time-frequency analysis on single-axis signals to extract fault characteristics, and the installation of test instruments is complicated and difficult to use. , High testing cost and other disadvantages
The above problems have brought great difficulties to the virtual transmission chain performance test evaluation

Method used

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  • Tester and testing method for numerically-controlled machine tool virtual transmission chain
  • Tester and testing method for numerically-controlled machine tool virtual transmission chain
  • Tester and testing method for numerically-controlled machine tool virtual transmission chain

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] see figure 1 , a virtual transmission chain tester for CNC machine tools. The present invention adopts the built-in sensor signal sampling principle, obtains the feedback signal between the numerical control equipment (industrial equipment) and the control system through a three-way way, and introduces the separated signal into the control system without affecting the control system. To the acquisition system to achieve the purpose of obtaining the signal. The virtual transmission chain tester is divided into a test hardware system and a test software system, including a portable computer, a signal acquisition card, a signal connection line, and test software. The portable computer communicates with the acquisition card to obtain data; the input end of the signal acquisition card is connected to the signal connection line, and the output end of the signal acqu...

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Abstract

The invention discloses a tester and a testing method for a numerically-controlled machine tool virtual transmission chain. The tester comprises a portable computer, a signal collecting card, a signal connection line and tester software. Feedback signals of all servo shaft grating rulers and a coder of the numerically-controlled machine tool are collected with the tester; fluctuation of a virtual transmission ratio and fluctuation of the position of a shaft C are calculated; time-frequency analysis is performed on all shaft signals with the testing software; evaluation is performed on the performance of the numerically-controlled machine tool virtual transmission chain by synthesizing an analyzed result. The tester and testing method for the numerically-controlled machine tool virtual transmission chain is convenient to carry out, low in test cost, strong and practical in function and capable of providing means which is convenient and fast to adopt for the performance test and the fault diagnosis of the numerically-controlled machine tool virtual transmission chain.

Description

technical field [0001] The invention relates to the field of testing of numerically controlled machine tools, in particular to a tester and a testing method for a virtual transmission chain of a numerically controlled machine tool. Background technique [0002] With the development of gear machine tools towards high speed, high precision and high efficiency, the traditional mechanical transmission chain is no longer suitable for the requirements of new machine tools for processing and assembly accuracy and difficulty, transmission accuracy and transmission speed, etc., resulting in a new transmission mode , that is, electronic transmission, this digital-based multi-motor coordination transmission control process, the so-called virtual transmission chain. [0003] The virtual transmission chain is more and more widely used, but it also brings new problems. Because the inline transmission mode is adopted between the servo axes, a new transmission error is generated, that is, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4062
Inventor 梅雪松赵飞陶涛范胜乾姜歌东
Owner XI AN JIAOTONG UNIV
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