硬质合金刀具螺旋槽缓进给磨削力研究

中国机械工程 ›› 2014, Vol. 25 ›› Issue (9): 1153-1158.

硬质合金刀具螺旋槽缓进给磨削力研究

宋铁军;周志雄;李伟;任莹晖

湖南大学,长沙,410082

出版日期:2014-05-10 发布日期:2014-05-15
基金资助:
国家科技重大专项（2012ZX04003041）

Research on Grinding Forces of Creep Feed Grinding Cemented Carbide Tool Helical Grooves

Song Tiejun;Zhou Zhixiong;Li Wei;Ren Yinghui

Hunan University,Changsha,410082

Online:2014-05-10 Published:2014-05-15
Supported by:
National Science and Technology Major Project ( No. 2012ZX04003041)

摘要/Abstract

摘要：

用离散化方法将砂轮看作是由一组不同直径的单位厚度薄片组成的,分析了硬质合金刀具螺旋槽缓进给成形磨削的磨削力;基于工件轴向磨削力和力矩建立了一个表征砂轮锐利程度的磨削力比数学模型。通过建立的测力系统测量了螺旋槽缓进给磨削过程中轴向磨削力和力矩,并对其信号进行了分析。在理论和实验的基础上获得了两种磨削参数下的磨削力比。研究结果表明,磨削力比可作为硬质合金刀具螺旋槽缓进给磨削过程的评价参数。

关键词: 缓进给磨削, 螺旋槽, 磨削力比, 硬质合金刀具

Abstract:

The grinding forces of creep feed grinding cemented carbide tool helical groove were analyzed by grinding wheel discretization method that the grinding wheel was regarded as composion of different elementary discs. Based on the grinding forces and torques of creep feed grinding cemented carbide tool helical groove, a mathematical model of grinding force ratio was established to describe the blunting of the diamond grains. The accurate signals of the grinding forces and torques were achieved by setting up a measurement system. The grinding force ratio was analyzed based on the mathematical model and the experimental data. The results show that the grinding force ratio can be used for grinding process evaluation.

Key words: creep feed grinding, helical groove, grinding force ratio, carbide cemented tool

中图分类号:

TG58
TG71

宋铁军, 周志雄, 李伟, 任莹晖. 硬质合金刀具螺旋槽缓进给磨削力研究[J]. 中国机械工程, 2014, 25(9): 1153-1158.

Song Tiejun, Zhou Zhixiong, Li Wei, Ren Yinghui. Research on Grinding Forces of Creep Feed Grinding Cemented Carbide Tool Helical Grooves[J]. China Mechanical Engineering, 2014, 25(9): 1153-1158.

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