How to correctly select the coordinate system of a coordinate measuring machine?

How to correctly select the coordinate system of a coordinate measuring machine? Publish time: 2019-12-18 Source: https://www.microaccuracy.com/ During the use of a three-coordinate measuring machine, the choice of coordinate system has a great influence on the final measurement results, and the establishment of a correct coordinate system Can improve the accuracy of measurement, how to use a coordinate measuring machine to select the coordinate system correctly? The choice of the coordinate system cannot be ignored. When using a three-coordinate measuring machine for measurement, carefully study the drawings and the measured part, and try to understand the processing and use of the product, which is more helpful to the judgment and choice of the coordinate system: 1. When using a coordinate measuring machine to select a coordinate system, the first thing you need to consider is the use of the measured part. The position used as the reference of the coordinate system should be the same as the fixed position of the product part during assembly, so that it is more conducive to discrimination Deviation of product parts. 2. In the three-coordinate measurement, when testing the parts under test that are not strict or not obvious in positioning benchmarks, such as special inspection tools, try to choose those elements that can cover a larger area as the reference surface and line as much as possible. To ensure that the error value of the measurement result of each part of the measured part is less affected by the coordinate system. 3. While meeting the above conditions, it is also necessary to consider the design reference and processing reference of the tested part. Consistency with the design reference is conducive to size comparison, and consistency with the processing reference is conducive to adjustment when deviations occur, so as to ensure the coordinates There is no deviation in the selection of the department. The above is the coordinate system selection method shared by Miaoji Technology. Accurate measurement can bring benefits to the enterprise. CMM has gradually become an indispensable equipment in the industrial field. As a professional manufacturer of precision measuring equipment in China, Miaoji Technology can currently provide a variety of high-quality three-coordinate measuring machines, one-button measuring instruments and other precision measuring equipment!