硬质合金插齿刀设计及有限元分析论文.doc

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本科生毕业设计
硬质合金插齿刀设计及有限元分析
The Design and FEA Of Carbide Cutter
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指导教师
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二〇一一年六月
摘要
传统插齿刀的前刀面为锥面或平面,而采用硬质合金材料的插齿刀存在构形精度和抗崩刃能力之间相互制约的弊端。在加工一定数量的工件后,插齿刀会出现微崩刃和侧刃顶部的急剧磨损现象。因此,有必要分析插齿加工时插齿刀的应力、应变以及危险点的分布。
本文根据插齿刀的构形方法,在CATIA环境下建立插齿刀参数化实体模型,重点完成了对复杂曲面的建模。并将实体模型导入CATIA有限元分析模块对侧刃进行插齿主切削力静态分析。从而得知插齿切削力对硬齿面硬质合金插齿刀的磨损和崩刃影响较小,在主切削力作用下刀尖部位为危险点,齿根部位为次危险点。分析结果为继续研究硬质合金插齿刀奠定了理论基础。同时,为了加工应用,利用AutoCAD软件绘制了二维工程图纸。
关键词:硬质合金插齿刀 CATIA实体建模有限元分析
Abstract
The traditional shaper cutter’s rake face is taper surface or flat. The use of carbide material leads a drawback that the shaper cutter’s configuration accuracy and ability of anti-chipping restricts each other. After machined a certain number of jobs, micro chipping will appears and the top of side edge will wear rapidly. Therefore, it is necessary to analyze the distribution of shaper cutter’s stress, strain and dangerous point.
This article according to the shaper cutter’s configuration method, established its parametric solid models in the CATIA environment, focus on pletion of the modeling plex surface. And import solid models into CATIA finite element analysis module for the static analysis of the main cutting force. At last we got the result that the main cutting force has little effect on carbide shaper cutter’s wear and chipping. Under the action of main cutting force the corner is dangerous point, the tooth roots part is the minor dangerous point. The analysis results laid a theoretical foundation of further study of carbide shaper cutter. Meanwhile, for practical application, used AutoCAD software to draw two-dimensional engineering drawings.
Keywords: Carbide material; Shaper cutter; CATIA solid modeling; Finite element analysis
目录
摘要 1
Abstract 2
目录 3
第1章绪论 1
硬齿面插齿技术概述 1
插齿技术在齿轮加工中的地位 1
硬齿面插齿技术的国内外发展现状 1
插齿刀技术的发展 3
涂层技术的开发应用 3
3
(X0)max的限制因素 4
(X0)min 的限制因素 4
本课题研究的主要内容 4
第2章硬质合金插齿刀的建模 6
硬质面插齿刀的构形