Abstract
Cylindrical grinding is an important way to form the external shape error of the crank journal, and the accuracy consistency directly affects the interchangeability of products. To study the accuracy consistency of crank journal, a dynamic model of the grinding wheel-crankshaft grinding system based on Timoshenko beam is established, and the grinding transition process simulation algorithm with iterative convergence of grinding force-transient grinding amount cycle adapted to the model is proposed, which realizes the simulation of the roundness of the crank journal coupled with the process parameters of the grinding system. Aiming at the grinding position of each crank journal, the grinding roundness of five crank journals is simulated, respectively. On this basis, the crank journal roundness consistency prediction model is established, and the effectiveness of the prediction model is verified by field experiments. Finally, the influence of grinding parameters on the consistency of the roundness of crank journal is studied. The research conclusion can provide a reference for the grinding accuracy consistency design of this type of crank journal.
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Funding
This work was financially supported by the National Natural Science Foundation of China (Grant No. 51575173) and the Science and Technology Major Project-Advanced NC Machine Tools &Basic Manufacturing Equipment (Grant No. 2016ZX04003001).
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Zeng, X., Xiong, W., Ye, H. et al. Research on roundness error consistency model for crank journal cylindrical grinding. Int J Adv Manuf Technol 120, 3705–3717 (2022). https://doi.org/10.1007/s00170-022-08738-8
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DOI: https://doi.org/10.1007/s00170-022-08738-8