Different devices have different performance advantages, and the gauge reference ball inspection is no exception. The reference ball inspection of the inspection tool is used to inspect the accuracy of the parts and should have sufficient accuracy. However, there are errors in the design, manufacture and use of the reference ball inspection of the gage. In order to ensure the measurement accuracy of the measuring tool, these errors should be limited, generally accounting for 10% of the tolerance of the measured piece is appropriate.

The tool should have sufficient measurement efficiency. Under the premise of meeting the measurement accuracy and measurement efficiency, the structure of the inspection tool should be as simple as possible. The design of the inspection tool should not only ensure the product quality, but also reduce the manufacturing cost of the inspection tool, reduce the quantity and quality of the inspection personnel, and reduce the labor intensity of the inspection personnel. All design drawings should have a 1:1 size with the entity, and the size can accurately select materials, guide plates, pins, chucks, etc., and the use environment of the inspection tool should be considered to ensure that the reference ball inspection of the inspection tool maintains its proper function within the validity period of the current production . At the production site of parts, online testing is realized through inspection tools. To this end, it is necessary to accurately install the part on the inspection tool, and then inspect the surface and surroundings of the part by visual inspection, measuring platform, caliper, etc.

The reference ball inspection of the inspection tool is mainly composed of positioning, clamping, measurement and assistance. The correctness of the structural design of the inspection fixture and the guarantee of the measurement accuracy largely depend on the correct selection of the measurement reference plane. The function of the positioning device is to keep a certain position between the measuring reference plane of the tested part and the measuring device, so as to ensure the rationality and stability of the measurement. The clamping device of the reference ball inspection of the inspection tool is to ensure the reliability of the positioning of the tested part. Clamping should be based on the principle that the positioning is not damaged and the parts are not deformed. Commonly used are lever type, eccentric type, bolt type and pneumatic type. The choice of measuring device is mainly based on the accuracy requirements of the measured parts and the quantity index of the measuring device.