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Numerical control rotary table comprehensive performance detection system and reliability test method

A technology of rotary table and comprehensive performance, which is applied in the field of comprehensive performance detection system and reliability test of CNC rotary table, can solve the problem of single detection of performance parameters of CNC rotary table, less reliability test research, and influence on CNC rotary table. performance parameters reliability test accuracy and validity

Active Publication Date: 2019-11-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are still relatively few researches on the reliability test of key functional components of CNC machine tools in my country, and there is no clear and perfect reliability test method and specification for CNC rotary table as a guide; at the same time, the detection of performance parameters of CNC rotary table It is also relatively single, and most of them are static characteristic measurements. There is a lack of in-depth understanding of the dynamic characteristics of the CNC rotary table under simulated actual working conditions, which seriously affects the evaluation of the performance parameters of the CNC rotary table and the accuracy and reliability of the reliability test. effectiveness

Method used

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  • Numerical control rotary table comprehensive performance detection system and reliability test method
  • Numerical control rotary table comprehensive performance detection system and reliability test method
  • Numerical control rotary table comprehensive performance detection system and reliability test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] Example 1 A comprehensive performance testing system for a CNC rotary table

[0129] see Figure 1 to Figure 9 As shown, the present invention is a comprehensive performance detection system of a numerically controlled rotary table, which includes: a noise detection part 2, a positioning detection part 3, a vibration detection part 4, an oil pressure detection part 5, a turntable motor voltage detection part 6, a turntable motor current Detection part 7, signal processing unit:

[0130] The signal processing unit includes: a signal amplifier 81, a signal acquisition and output device 82, and an upper server 83; the signal amplifier 81 is connected to the signal acquisition and output device 82 through a cable; the signal acquisition and output device 82 is connected to the upper server 83 through a cable .

[0131] The noise detection part 2 includes: a noise sensor 21, a first magnetic base 22;

[0132] The connecting rod of the noise sensor 21 is fixedly connected ...

Embodiment 2

[0165] Embodiment 2 A detection method for a comprehensive performance detection system of a numerically controlled rotary table

[0166] A detection method for a comprehensive performance detection system of a numerically controlled rotary workbench, which is to detect comprehensive performance parameters of a numerically controlled rotary workbench; Cutting force loading part 14, control part;

[0167] The numerically controlled rotary table 12, the simulated bearing part 13, and the cutting force loading part 14 are fixed on the ground iron 11; the control part is fixed on the side of the ground iron;

[0168] The control part includes: a first control part 15, a second control part 16, a third control part 17;

[0169] The associated second control part 16 is fixed on the upper end of the first control part 15 ; the first control part 15 is fixed on the rear end of the third control part 17 .

[0170] see Figure 1 to Figure 9 Shown; a detection method for the comprehen...

Embodiment 3

[0189] Example 3 Reliability Test Method of CNC Rotary Worktable

[0190] see Figure 9 As shown, a reliability test method of CNC rotary table; it is a method based on the original CNC rotary table reliability test bed and the above-mentioned comprehensive performance detection system. The reliability test preparation conditions and reliability evaluation are determined. Index, determination of sampling quantity and test time, comprehensive performance test of CNC rotary table, reliability test of CNC rotary table, comprehensive performance test of CNC rotary table, fault judgment, data recording, data processing and reliability modeling. ;

[0191] The steps of a reliability test method for a numerically controlled rotary table are as follows:

[0192] 1. Reliability Test Preparation Conditions

[0193] The preparation conditions for the reliability test of CNC rotary table include four requirements: test environment, test sample, test device and test personnel;

[0194...

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Abstract

The invention discloses a numerical control rotary table comprehensive performance detection system and a reliability test method. The system comprises a noise detection portion, a positioning detection portion, a vibration detection portion, an oil pressure detection portion, a rotary table motor voltage detection portion, a rotary table motor current detection portion and a signal processing unit. The invention also discloses a numerical control rotary table reliability test method, which is based on an original numerical control rotary table reliability test bench and the comprehensive performance detection system above, and is formed by the following steps: determination of product reliability evaluation indexes, determination of sampling quantity and test time, reliability test of a numerical control rotary table, failure judgment and data recording, data processing and reliability modeling and the like. The system can detect comprehensive performance parameters, such as oil pressure, noise, vibration, positioning accuracy and repeated positioning accuracy, rotary table motor current and voltage, of the numerical control rotary table; and the method can carry out reliability test under simulation of actual working conditions.

Description

technical field [0001] The invention belongs to the field of physical measuring instruments; in particular, it relates to a comprehensive performance detection system and a reliability test method of a numerical control rotary workbench. Background technique [0002] As an important basic equipment of modern manufacturing technology, the development trend of high speed, high precision and modularization of CNC machine tools is becoming more and more obvious. At present, there is still a large gap between domestic CNC machine tools and foreign advanced levels in terms of reliability level, processing accuracy, and processing dynamic performance, which has become a technical bottleneck for industrial development. Monopoly and market erosion are extremely disadvantageous. The CNC rotary table is one of the core functional components of the CNC machine tool. Its accuracy retention, anti-vibration performance and reliability level under actual processing conditions directly affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01R31/00
CPCG01M99/004G01M99/005G01M99/007G01R31/00
Inventor 何佳龙赵新跃王继利朱晓翠王伟李国发杨兆军陈传海王彦鹍罗巍
Owner JILIN UNIV