Research on Pneumatic Measurement of Edge Morphology Based on TRIZ Theory
The functional edges on the parts have the functions such as improving the mechanical strength,enhancing wear resistance,and preventing loosening,which play an important role in ensuring the normal operation of mechanical equipment.The shape of the edges has a significant impact on the performance of the parts,so measuring the shape of the edges is crucial.In conventional measurement methods,improving measurement accuracy and causing edge damage constitute a pair of technical contradictions.This article proposes a pneumatic measurement method for edge morphology using the contradiction matrix and innovation principle in TRIZ theory.This method calculates the rectangular orifice area formed by the slit probe and the measured edge through the air pressure in the pressure chamber,and then obtains the morphology of the measured edge.A prototype device for measuring the edge of the inner ring groove is designed based on the TRIZ solution.The experimental results show that the aerodynamic measurement method for edge morphology proposed in this paper has high measurement accuracy and there is no damage to the edges,which are of great significance for improving the manufacturing quality of mechanical parts.
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