设计简介
中文摘要
数控机床加工工艺与普通机床加工工艺在原则上基本相同，但数控加工的整个过程是自动进行的。数控加工的工序内容比普通机床的加工的工序内容复杂。这是因为数控机床价格昂贵，若只加工简单的工序，在经济上不合算，所以在数控机床上通常安排较复杂的工序，甚至是在通用机床上难以完成的那些工序。数控机床加工程序的编制比普通机床工艺规程编制复杂。这是因为在普通机床的加工工艺中不必考虑的问题，如工序内工步的安排、对刀点、换刀点及走刀路线的确定等问题，在数控加工时，这一切都无例外地都变成了固定的程序内容，正由于这个特点，促使对加工程序的正确性和合理性要求极高，不能有丝毫的差错，否则加工不出合格的零件。
关键词：轴类零件；数控车削；工艺设计
Abstract
Numerical control machine processing technology and common machine processing technology in the same basic in principle, but the whole process of nc machining is automatic. Nc machining process of the content of the machine tool than normal processing process content complex. This is because the numerical control machine tool is expensive, if only simple processing of working procedure, in economic not worthwhile, so on the nc machine more complex process is arranged normally, even in general in machine tool of the difficult to complete the process. Numerical control machine tool than regular programming machine process planning of complex. This is because in the processing technology of the conventional machine tools in need not consider of problems, such as the arrangement of the steps in the process of work, the cutting point, change the tools point and go to determine the knife route, in the numerical control processing, it all without exception to all become fixed program content, and because of this
feature, for the processing procedures to the correctness and rationality of the highly demanding, there can be no mistake, or processing not qualified parts.
Keywords: axial parts; The numerical control turning; Process design
目 录
中文摘要 1
Abstract 2
1 芯轴类零件概述 3
1.1国内外数控发展概况 3
1.2数控技术发展趋势 3
1.2.1 性能发展方向 3
1.2.2 功能发展方向 4
1.2.3 体系结构的发展 5
1.3 智能化新一代PCNC数控系统 6
2 工艺方案分析 7
2.1 零件图 7
2.2工艺设计及零件图分析 8
2.21 工艺设计 8
2.22 零件工艺分析 8
2.3确定加工方法 8
2.4 确定加工方案 9
3 工件的装夹 9
3.1定位基准的选择 9
3.2定位基准选择的原则 9
3.3装夹方式的选择 10
3.4数控车床常用装夹方式 10
4 刀具及切削用量 10
4.1选择数控刀具的原则 10
4.2选择数控车削用刀具 11
4.3设置对刀点和换刀点 11
4.4确定切削用量 12
5 此典型轴类零件加工 13
5.1 轴类零件加工的工艺分析 13
5.2 典型轴类零件加工工艺 15
5.3 程序的编制 18
致谢词 24
参考文献 25
数控机床加工工艺与普通机床加工工艺在原则上基本相同，但数控加工的整个过程是自动进行的。数控加工的工序内容比普通机床的加工的工序内容复杂。这是因为数控机床价格昂贵，若只加工简单的工序，在经济上不合算，所以在数控机床上通常安排较复杂的工序，甚至是在通用机床上难以完成的那些工序。数控机床加工程序的编制比普通机床工艺规程编制复杂。这是因为在普通机床的加工工艺中不必考虑的问题，如工序内工步的安排、对刀点、换刀点及走刀路线的确定等问题，在数控加工时，这一切都无例外地都变成了固定的程序内容，正由于这个特点，促使对加工程序的正确性和合理性要求极高，不能有丝毫的差错，否则加工不出合格的零件。
关键词：轴类零件；数控车削；工艺设计
Abstract
Numerical control machine processing technology and common machine processing technology in the same basic in principle, but the whole process of nc machining is automatic. Nc machining process of the content of the machine tool than normal processing process content complex. This is because the numerical control machine tool is expensive, if only simple processing of working procedure, in economic not worthwhile, so on the nc machine more complex process is arranged normally, even in general in machine tool of the difficult to complete the process. Numerical control machine tool than regular programming machine process planning of complex. This is because in the processing technology of the conventional machine tools in need not consider of problems, such as the arrangement of the steps in the process of work, the cutting point, change the tools point and go to determine the knife route, in the numerical control processing, it all without exception to all become fixed program content, and because of this
feature, for the processing procedures to the correctness and rationality of the highly demanding, there can be no mistake, or processing not qualified parts.
Keywords: axial parts; The numerical control turning; Process design
目 录
中文摘要 1
Abstract 2
1 芯轴类零件概述 3
1.1国内外数控发展概况 3
1.2数控技术发展趋势 3
1.2.1 性能发展方向 3
1.2.2 功能发展方向 4
1.2.3 体系结构的发展 5
1.3 智能化新一代PCNC数控系统 6
2 工艺方案分析 7
2.1 零件图 7
2.2工艺设计及零件图分析 8
2.21 工艺设计 8
2.22 零件工艺分析 8
2.3确定加工方法 8
2.4 确定加工方案 9
3 工件的装夹 9
3.1定位基准的选择 9
3.2定位基准选择的原则 9
3.3装夹方式的选择 10
3.4数控车床常用装夹方式 10
4 刀具及切削用量 10
4.1选择数控刀具的原则 10
4.2选择数控车削用刀具 11
4.3设置对刀点和换刀点 11
4.4确定切削用量 12
5 此典型轴类零件加工 13
5.1 轴类零件加工的工艺分析 13
5.2 典型轴类零件加工工艺 15
5.3 程序的编制 18
致谢词 24
参考文献 25
