| 摘要 |
PURPOSE:To calculate shape accuracy of dimensions, squareness, etc., of an object to be measured with high efficiency and good accuracy by holding the object to be measured freely attachably or detachably by a holding mechanism and bringing plural probes into contact freely touchably or separably with measuring points of the object to be measured. CONSTITUTION:The titled measuring instrument is constituted of a displacement detection part 1 to measure the quantities of displacement of plural parts at the same time, an arithmetic and control part, etc. When the object 4 to be measured is first mounted on a pedestal 5, air cylinders 8 and 9 are actuated by a signal from the arithmetic and control part and piston parts 8a and 9a abut on the object 4 to be measured and press it by these parts. Next, in the same way, the probes 10a-13a are turned in an arrow theta direction and come into contact with the measuring points 4b-4e of the object to be measured. Then, displacement signals of the respective measuring points 4b-4e are outputted from electric micrometers 10-13 and converted into digital signals in order by an electronic switch and inputted into the arithmetic and control part. The arithmetic and control part compares the working errors calculated by the inputted signals with the standard values of the dimensions and the shape accuracy and decides the quality and displays the result on a display part.
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