Research on the Vibration Properties of Hob Spindle for CNC Gear Hobbing Machine

doi:10.3901/JME.2017.01.130

Abstract

Abstract: In order to explore the hob cutting vibration characteristics of computer numerical control (CNC) gear hobbing machine, According to the machine tool structure, process parameters and Euler-Bernoulli beam vibration theory was established the hob spindle X direction of vibration response function model, the vibration test is carried out, the vibration frequency and X direction vibration acceleration and displacement curve of the hob spindle are obtained. Compared the theoretical results of calculation with the practical experimental values of the maximum amplitude of the vibration acceleration and displacement of the hob spindles, the relative error of the results are all lower than 5%. It shows that the theory and the experimental results are in good agreement, which proves the correctness of the theory model of the vibration response function model of the hob spindle of this type of gear hobbing machines. And From the test data analysis, it is known that this research has guiding significance to the spindle structure and processing parameter selection and the optimization, and the prediction of the machining error about gear hobbing machines, It can provide experience reference and reference value for the other series gear hobbing machines of the hob spindle of the vibration characteristic theory and experiment research, and also lay a theoretical and experimental foundation work for the further research on vibration characteristics of gear hobbling machine in future.

Key words: hob spindle, model, test, vibration, gear hobbing machine

LI Xianguang, YANG Yong. Research on the Vibration Properties of Hob Spindle for CNC Gear Hobbing Machine[J]. Journal of Mechanical Engineering, 2017, 53(1): 130-139.

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