With the continuous development of automobile inspection technology, especially the development of automobile industry in recent years, gauge reference blocks are more and more popular in the manufacturing industry attention. As an emerging high value-added industry in the manufacturing industry, it has shown good development prospects.

The main purpose of the reference block of the gauge is to solve the problem of interchangeability and matching of parts, and gauges are very useful. It can be said that all walks of life are inseparable from regulations. The most widely used are the automobile industry and the aviation industry. At General, there is a pair of gauges for almost every part. As long as the goods pass the limit, there is no doubt that they are generally loaded.

In the past, mold products made many inspection tools. It is conceivable that it is almost impossible to hang them outside for maintenance at such a high altitude without inspection tools. If it is on the automobile production line, the entire production line will be shut down because one part cannot be installed, so it is very necessary to control the quality of each part.

The reference block of the automobile inspection tool is the wind vane of the automobile market.

Gauge reference block is a special inspection equipment used to measure and evaluate the size and quality of parts. At the parts production site, the online detection of parts is realized through the inspection tool. Therefore, it is necessary to accurately install the part on the inspection tool, and then check the contour and periphery of the part by visual inspection or measuring gauge or caliper. It is also possible to visually inspect the holes of different natures on the part and the connection position between the parts by checking the pin or visual inspection to ensure that the quality status of the part can be quickly judged during trial production and production. In this case, by visual inspection or measurement, the deviation between the peripheral size, shape area and relative position of the part outline and the theoretical value of the fixture directly processed by CAD/CAM can be judged.

For some extremely important functional dimensions on the part, numerical inspection can also be carried out with the inspection tool. Usually, the precise coordinate value of the reference block of the inspection tool based on the body coordinate system cannot be directly obtained by the inspection tool, but can only be obtained by placing the part on the inspection tool and measuring it with a three-coordinate measuring machine. The structural design of modern gages takes into account that it can be used as a measuring bracket. However, when the online detection function and measurement support function of the fixture cannot be satisfied at the same time, the online detection function of the reference block of the gage should be satisfied first.