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In the process of product testing, if it is found that the test data of the same program or the same part during multiple tests are greatly different, the output is inconsistent, or it is different from the actual assembly situation, it needs to be checked and analyzed from several aspects. Here are the main points.

In the modern manufacturing industry, CMM is increasingly used in the production process, making the goal and key of product quality gradually change from final inspection to manufacturing process control.

When using the coordinate measuring machine for measurement, if the measurement deviation is too large, then please follow the following method to solve the problem.

The working process of a CMM generally includes preparation, select measurement program, set measurement parameters, data processing, data processing, follow-up processing.

There are many kinds of CMM probes, mainly divided into fixed, manual rotation, manual rotation automatic indexing, automatic rotation automatic indexing and general detection system.

CMM focuses on geometric measurements in three-dimensional space, while profilometers focus on surface profile and roughness. CMM are suitable for a wider range of industrial applications, while profilometers are more focused on surface characteristic analysis. 

At this glorious moment, we jointly celebrate the 75th anniversary of the founding of the People’s Republic of China. 

The systematic error of a coordinate measuring machine (CMM) refers to the systematic deviation caused by factors such as the design, manufacturing, installation and use of the equipment itself during the measurement process. These errors are generally predictable and consistent when measurements are repeated under the same conditions. 

The dimensional deviation is the algebraic difference of the dimensions minus their nominal dimensions, which can be divided into actual deviation and limit deviation.

The industry has made great progress since the 1960s. With the rise of industrial production machinery, automobiles, aerospace and electronics industries, the development and production of various complex objects require advanced detection technology and instruments, which are reflected in the three coordinate measuring machine and three-dimensional measurement technology came into being, and have been rapidly developed and improved.

The scanning measurement is different from the trigger measurement, the measuring machine will bear the inertial load during the whole process, and the dynamic performance is more important than the static performance. Inertial load causes deformation of measuring machine structure, which is difficult to predict.