Part Assembly Process Design Based on Tolerance and Motion Accuracy
In the modern manufacturing industry,the part assembly process has an important impact on product performance and reliability.However,due to the unavoidable errors and deviations in the manufacturing and processing of parts,difficulties and unde-sirable phenomena,such as jamming and loosening,may occur in the assembly process.In this study,through the tolerance analysis of the parts manufacturing and assembly process,combined with the kinematics and dynamics principles,a process design method with comprehensive consideration of tolerance and motion accuracy is proposed.The research results show that the crankshaft mount-ing hole size tolerance has the greatest influence on assembly,contributing 23.92％.After optimisation,the error of tie rod motion trajectory is from-0.032 mm to+0.023 mm,which meets the 91.45％accuracy requirement.By considering the process design method of tolerance and motion accuracy,it makes the fit between parts more accurate,which reduces the defective phenomena in the assembly process,and this research has a good application prospect in improving the assembly accuracy and efficiency.
万方数据
维普
