丝杠冷滚打变形力影响因素研究

摘要/Abstract

摘要：

为研究丝杠冷滚打成形过程中滚打轮半径、滚打轮圆角半径和打入量与变形力之间的关系，在丝杠冷滚打成形原理的基础上建立了有限元仿真模型。通过仿真获得单次滚打以及多次滚打成形过程中，变形力随滚打轮半径、滚打轮圆角半径和打入量的变化规律；设计了正交试验，研究打入量、滚打轴转速、滚打轮厚度及工件转速4个因素对变形力的影响规律。在自行设计的冷滚打成形丝杠设备上进行实验，测得变形力的变化趋势与仿真结果基本一致，验证了有限元仿真模型的正确性。

关键词: 丝杠, 冷滚打, 滚打轮, 变形力, 仿真

Abstract: A finite element simulation model was established on the basis of the cold roll-beating forming principles of the leadscrew to study the relationship among the radius of the rolling wheel, the fillet radius of the rolling wheel, the amount of beating, and the deformation forces. The single and multiple rolling forming processes were obtained through simulation and obtaining of the deformation force varying laws with the radius of the rolling wheel, the fillet radius of the rolling wheel and the amount of beating. Through the orthogonal test, the influence laws of the amount of beating, the rotational speed of the rolling shaft, the thickness of the rolling wheel and the rotational speed of the workpiece on deformation forces were studied. The change trend of the measured forming forces was basically consistent with the simulation results, and the correctness of the finite element simulation model was verified by the experiments which were carried out on the self-designed cold roll-beating forming leadscrew equipment.

Key words: leadscrew； cold roll-beating, rolling wheel, forming force, simulation

中图分类号:

TG331

李玉玺1,2;李言1;崔莅沐1;苗志鸿1. 丝杠冷滚打变形力影响因素研究[J]. 中国机械工程.

LI Yuxi1,2;LI Yan1;CUI Limu1;MIAO Zhihong1. Research on Influence Factors of Cold Roll-beating Forming Forces of Leadscrews[J]. China Mechanical Engineering.

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