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System for measuring and analyzing digital-controlled machine-tool dynamic characteristic

A dynamic characteristic, CNC machine tool technology, applied in the testing of machine/structural components, metal processing equipment, metal processing machinery parts, etc., can solve the problems of economic loss, low CNC processing efficiency, and restricting the development of the national defense industry.

Inactive Publication Date: 2007-09-05
BEIHANG UNIV
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Problems solved by technology

In order to improve the development level of our country's weapons and equipment, our country has introduced a large number of numerical control equipment, but the role played by these equipment is only a fraction of that of foreign countries
The low efficiency of CNC machining has become a common problem, which not only seriously restricts the development of my country's national defense industry, but also causes huge economic losses and waste of resources
[0003] One of the main reasons for the low level of CNC machining application technology is: the lack of CNC process parameters and their selection and optimization methods

Method used

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  • System for measuring and analyzing digital-controlled machine-tool dynamic characteristic
  • System for measuring and analyzing digital-controlled machine-tool dynamic characteristic
  • System for measuring and analyzing digital-controlled machine-tool dynamic characteristic

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Embodiment Construction

[0066] The present invention is a kind of numerically controlled machine tool machining dynamic characteristic test and analysis system, and the experimental test method is the single-point excitation single-point response method, please refer to shown in Figure 21, the accelerometer is installed on the cutter tip of the milling cutter, and the force hammer 2 is in the numerical control The other side of the machine tool tool 1 excites the CNC machine tool tool 1, and two charge signals are obtained from the hammer 2 and the accelerometer, and the charge amplifier 4 and the data collector 7 reach the memory of the computer 11, and the software reads the signal from the memory of the computer 11. Output and display the data, save it as a text file format, and perform FFT analysis, transfer letter analysis, and modal analysis on the measured data. The hardware and software cooperate to obtain the frequency response function (FRF) file and all modal parameters of "machine tool-too...

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Abstract

A test and analysis system of digital machine process-dynamics character comprises hardware prepared as arranging acceleration transducer at tail end of cutter, connecting hammer and said transducer to electric charge amplifier being connected to data collector and carrying out data transmission with computer by said collector; and software formed by man-machine interactive boundary and module of data collection, data play-back, hammering test, transmission function analysis, parameter identification, noise test and analysis.

Description

(1) Technical field: [0001] The invention relates to a testing and analysis system (DynaCut) for the machining dynamics characteristics of a numerical control machine tool, specifically relates to the research on the machining dynamics properties of a numerical control machine tool, and belongs to the technical field of numerical control machining. (two) background technology: [0002] In recent years, the proportion of CNC machining in China's machining industry has become more and more important, and it has become an irreversible trend for CNC machining to replace ordinary machining. In order to improve the development level of our country's weapons and equipment, our country has introduced a large number of numerical control equipment, but the role played by these equipment is only a fraction of that of foreign countries. The low efficiency of CNC machining has become a common problem, which not only seriously restricts the development of my country's national defense ind...

Claims

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Application Information

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IPC IPC(8): G01M19/00G01D21/00B23Q17/00G01M99/00
Inventor 刘强金晓亮
Owner BEIHANG UNIV
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