What factors affect the static error of the coordinate measuring machine?

What factors affect the static error of the coordinate measuring machine? Published: 2019-10-23 Source: http://www.microaccuracy.com/ Although the coordinate measuring machine is a high-precision measuring device, it is easy to Cause various measurement errors, what factors affect the static error of the coordinate measuring machine? The measurement of industrial production design has high measurement accuracy requirements for the coordinate measuring machine. Any error should be avoided as much as possible. The static error of the coordinate measuring machine is mainly caused by the following aspects: 1. Due to structural parts (such as The geometric errors caused by the limited accuracy of the guide rail and measuring system are determined by the manufacturing accuracy of these structural parts and the adjustment accuracy during installation and maintenance. 2. The errors related to the finite stiffness of the mechanical parts of the coordinate measuring machine are mainly caused by the weight of the moving parts. These errors are determined by the stiffness, weight and their configuration of the structural parts. 3. Thermal errors, such as the expansion and bending of the guide rail caused by a single temperature change and temperature gradient. These errors are determined by the machine structure, material characteristics and temperature distribution of the coordinate measuring machine, and are affected by external heat sources (such as ambient temperature) and internal heat sources. (Such as driving device). 4. The error between the probe and the accessories mainly includes the change in the radius of the probe tip caused by the replacement of the probe, the extension of the extension rod, and the addition of other accessories, and the anisotropy error of the probe when it is touched in different directions and positions. Errors caused by the rotation of the indexing table, etc. The above are several factors that cause the static error of the coordinate measuring machine. As long as the measurement and use process is operated correctly and used in a suitable environment, regular maintenance of the coordinate measuring machine can effectively reduce the error to ensure the normality of the equipment. Circumstances, currently MiaoJi can provide a variety of high-precision coordinate measuring machines and one-button measuring instruments!