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Grinder sandwheel dynamic-balancing detection-control system

A technology of measurement and control system and dynamic balance, which is applied in the field of signal control and mechanical processing, can solve the problems of measurement error, long signal processing time, limited command function and operation speed, etc., and achieve the effect of improving measurement accuracy and suppressing interference ability

Inactive Publication Date: 2005-02-09
LUOYANG BEARING SCI & TECH CO LTD
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Problems solved by technology

[0002] In July 2000, "Development and Application of On-Site Balance Detector", written by Xu Congyu, was published on domestic science and technology. However, due to the use of ordinary single-chip microcomputer, its instruction function and operation speed are limited, and the signal processing time is long. This method is suitable for the measurement of stable vibration signals.
Furthermore, the measurement signal is averaged. This method is more suitable for measuring general vibration signals that change periodically, but it will bring certain measurement errors to fast-changing vibration signals.

Method used

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  • Grinder sandwheel dynamic-balancing detection-control system
  • Grinder sandwheel dynamic-balancing detection-control system
  • Grinder sandwheel dynamic-balancing detection-control system

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Embodiment Construction

[0017] The present invention uses a digital signal processor to perform wave-isolation sampling and wave-isolation processing on the signal during the automatic balancing process of the grinding wheel, and extracts the fundamental wave component through discrete Fourier transform calculations to obtain accurate amplitude and phase of the fundamental wave signal. To suppress the interference of other noises, the measurement accuracy of the measurement and control unit depends on digital signal processing. The signal needs to be amplified and anti-aliasing processing; wave-isolated sampling and wave-isolated processing, the sampling sine wave is a signal with the same frequency as the grinding wheel shaft generated by the unbalanced amount of the grinding wheel. Carry out discrete sampling in the previous wave, and the number of sampling points depends on the control of the sampling interval of A / D conversion; the sampling control period is provided by the phase-locked frequency ...

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Abstract

A test and control system for a grinder stone wheel dynamic balance uses a digital signal special process chip to sample and process vibration signals in interwave in the process of the grinder stone wheel automatic balance to extract fundamental wave component by discrete Fourier transform computation to get accurate crest and phase of fundamental signals and suppress other interference of noise to judge if PWM signal will be provided to two bridge motor special integrated controller after analyzing and processing the being tested signal to drive the balanced print drive gear of the stone wheel to realize the dynamic balance of the stone wheel.

Description

Technical field: [0001] The invention relates to the technical field of mechanical processing and the technical field of signal control, in particular to a dynamic balance measurement and control system of a grinding wheel of a grinding machine. Background technique: [0002] In July 2000, "Development and Application of On-Site Balance Detector" published by Xu Congyu on domestic science and technology. Its technical characteristics are as follows: it adopts the method of sampling several points in a signal wave, and then performs digital analysis and processing. However, due to the use of an ordinary single-chip microcomputer, its command function and operation speed are limited, and the signal processing time is long. This method is suitable for the measurement of stable vibration signals. It is not suitable for the control of non-stationary vibration signals such as the automatic balance of grinding wheels; in the third issue of Volume 19 in 2000, Ou Haitao published "In...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B55/00G01M1/16G01M1/32G01M1/38
Inventor 高冰苏健钟小滨张卫军
Owner LUOYANG BEARING SCI & TECH CO LTD
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