Circularity measuring device and tip end member quality judging method
A technology for measuring terminals and measuring devices, which is applied in the direction of measuring devices, mechanical measuring devices, and mechanical devices, etc., can solve the problems of low measurement efficiency and achieve the effects of improving measurement accuracy, improving operability and efficiency
Inactive Publication Date: 2008-12-10
TOKYO SEIMITSU
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Problems solved by technology
However, center adjustment is an operation and work that takes time, and there is a problem that the efficiency of measurement is low.
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[0040] The following describes the true roundness measuring device of the embodiment of the present invention, the true roundness measuring device of the embodiment has the same as figure 1 The shown conventional roundness measuring device has a similar basic structure, but the correction processing in the arithmetic processing unit 15 is different. In other words, the software for operating the computer constituting the calculation processing unit 15 is different. Hereinafter, the contents of the correction processing will be described.
[0041] Figure 5 and Image 6 It is a drawing explaining the correction processing of the roundness measuring device according to the first embodiment of the present invention.
[0042] First, in the correction process of the first embodiment, the radius r and the eccentricity E of the terminal 11 are measured using the radius R of the workpiece W. The radius R of the workpiece W and the radius r of the measurement terminal 11 use previous...
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It is possible to realize a circularity measuring device having an improved measuring accuracy when eccentricity is improved. The circularity measuring device includes: a table (1) for mounting an object; a tip end member (11) having a spherical tip end which can be displaced in a first plane containing a rotation axis of the table and displaced in contact with a surface of an object to be measured; measurement members (12-14) for detecting a displacement of the tip end and outputting measurement data; and a process control unit (15) for processing the measurement data. The process control unit corrects a shift of the contact position between the surface of the object to be measured and the tip end member in the first plane caused by eccentricity between the center of the object to be measured and the rotation center of the table for calculating the circularity. The process control unit calculates a shift of in the direction vertical to the first plane of the contact position caused by eccentricity and corrects the shift of the contact position in the first plane caused by the calculated shift, thereby calculating the circularity.
Description
technical field [0001] The present invention relates to a true-roundness measuring device and a method for judging the quality of the measuring terminals used therein, and in particular to a true-roundness measuring device for correcting the eccentricity of the central axis of a workpiece relative to a rotation axis, calculating the true-roundness, and using eccentricity to judge and measure How the terminal is good or bad. Background technique [0002] The roundness measuring device loads the measured object (workpiece) with a circular cross section such as a cylinder on a rotatable stage, makes the measuring terminal contact the surface of the workpiece, and measures and detects the roundness generated by the rotation of the workpiece. Measure the displacement of the terminal to measure the shape of the circular cross section. [0003] figure 1 It is a drawing showing the basic configuration of the roundness measuring device. As shown in the figure, the roundness measur...
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IPC IPC(8): G01B5/20
CPCG01B5/201G01B21/045
Inventor 榎本雅人沢藤进
Owner TOKYO SEIMITSU