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The acceptance test is to judge whether the gear is qualified after the end of the gear processing (final inspection). For this reason, the comprehensive index test should be preferred, which can reflect the comprehensive result of mutual compensation of various machining errors, and the comprehensive error item (especially the tangential comprehensive error) ) It is intuitive, accurate and reliable. The purpose of process inspection is to analyze and reveal the error caused by the process factors and adjust the cutting process to control and improve the precision of the process system (machine tool, tool, process installation, etc.). Therefore, it is more appropriate to use a single index to reveal the gear. Installation eccentricity, inspection △ Fw can reflect the tangential error caused by the eccentricity of the machine tool worm gear to the gear. Because △F′′i detection is convenient and rapid, all tests can be performed, and △Fw only needs to be sampled.
The batch selection inspection team for gear production must consider the production volume of the gears. For a large number of mass-produced gears, Caesar air compressors should use a comprehensive inspection program to purchase specially-inspected instruments and devices, which not only ensures product quality, improves inspection efficiency, but also reduces production costs, such as continuous measurement. For the error assessment index, the tangential integrated error and the radial comprehensive error should be selected instead of â–³Fp and â–³Fr, because â–³Fp is measured on the tooth pitch circle or near the tooth pitch, â–³Fr is The probe is double-sidedly contacted in the middle of the tooth height in the tooth groove and measured one by one in the range of the gear. It is obvious that their measurement is discontinuous, intermittent, limited, and not very simple. Therefore, they are not suitable. Gears for mass production. If a single-piece small-scale production of gears is to be comprehensively tested, it is necessary to equip high-precision measuring gears, which is uneconomical. Therefore, it is advisable to use a single indicator to test with a universal measuring tool.