Abstract: With the advent of numerically controlled machine tools, the demand has grown for some means to support this equipment. There has been growing need to have an apparatus that can do faster first piece inspection and many times, 100% dimensional inspection. The Coordinate Measuring Machine (CMM) plays a vital role in the mechanization of the inspection process. Some of the CMMs can even be used as layout machines before machining and for checking feature locations after machining. Coordinate measuring machines are relatively recent developments in measurement technology. Basically, they consist of a platform on which the work piece being measured is placed and moved linearly or rotated. A probe attached to a head capable of lateral and vertical movements records all measurements. Coordinate measuring machines are also called measuring machines. They are versatile in their capability to record measurement of complex profiles with high sensitivity (0.25 m) and speed. In this unit, we will discuss the principle and the working of a Coordinate Measuring Machine (CMM).
Keywords: Tramming, Stylus, Axial length measuring accuracy, Probe, DMIS.
Title: COORDINATE MEASURING MACHINE (CMM)
Author: Rohit Raju Nikam
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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