Dynamic spindle rotation precision detection device

Abstract

The invention discloses a dynamic spindle rotation precision detection device, and relates to the precision measurement field. A plurality of eddy current sensors are arranged, with axes orthogonal to each other, in a radial direction of a spindle detection mandrel, to obtain a run-out displacement signal in a corresponding radial direction of the detection mandrel. A fixing sleeve is passed through by several fastening screws and locked and fixed along an axial direction of a spindle outer cover. The fixing sleeve covers the spindle outer cover and is locked and fixed for supporting and fixing the eddy current sensors and a reflection type photoelectric sensor. The eddy current sensors and the reflection type photoelectric sensor are connected to an embedded system device which conducts analysis on collected radial run-out data, wherein the eddy current sensors and the reflection type photoelectric sensor present a non-contact state with a detection point of the spindle detection mandrel. The problems that a conventional contact detection device can neither measure the radial run-out of the spindle at a high speed rotating state nor detect the rotation precision of the spindle at an absolute position are solved, and structural design data are provided for improving the spindle dynamic precision.

Description

technical field [0001] The invention relates to the field of precision measurement, in particular to a dynamic spindle rotation precision detection device. Background technique [0002] The traditional detection of the radial runout of the spindle generally adopts contact measurement, such as a dial gauge or an inductive micrometer on a flat and smooth rotating annular reference surface, and the radial runout measurement is performed when the spindle is rotating at an extremely low speed. When the spindle is running at a certain speed, it is generally impossible to read the detection data correctly when it exceeds tens of revolutions per minute. When the spindle rotates at a higher speed, the vibration frequency of the measuring head is accelerated, coupled with the additional jitter effect caused by motion friction, the visual value of the instrument has no meaning to read. Therefore, the existing traditional detection technology can only detect the radial runout of the sp...

AI Technical Summary

Problems solved by technology

The deviation of high dynamic motion accuracy directly affects the machining accuracy of parts

[0004] Existing non-contact high dynamic displacement detection devices are basically composed of separate functional components or parts plus computer stacking. Generally, special software is needed to complete the detection and analysis tasks. Moreover, the construction cost of the entire detection system is high, and the connection is relatively cumbersome. The detection operation process is complicated

Therefore, under normal circumstances, due to the lack of accurate, comprehensive and fine rotation accuracy data of the spindle under high dynamic working conditions, it is not conducive to the dynamic technical analysis and R & D and manufacturing of high-precision high-speed spindles

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