设计简介
摘
随着生产力水平的发展，数控技术越来越广泛的应用于各个领域。而数控磨床更是发展中的重中之重，需求量扩大，我们必须全身心研究并设计出利于加工生产的数控磨床。
本次 设计的题目是数控凸轮轴磨床旋转转台设计。通过对磨床旋转转台的设计，使我在步入社会之前，不仅能够大体了解凸轮轴磨床旋转转台的大体功用，而且能够掌握机械设计的方法和步骤。
数控凸轮轴旋转转台是一种可以实现圆周进给和分度运动的工作台，它常被使用于磨床和数控加工中心上，可提高加工效率，完成更多的工艺，它主要由原动力、齿轮传动、蜗杆传动、工作台等部分组成，并可进行间隙消除和蜗轮加紧，是一种很实用的加工工具。本课题主要介绍了它的原理和机械结构的设计，并对以上部分运用AUTOCAD做图。
数控凸轮轴旋转转台的设计，首先，进行总体方案设计，传动方案采用齿轮传动和蜗杆传动；然后进行各零件的设计与校核，蜗杆与轴采用整体式结构；蜗轮与工作台采用螺钉连接；工作台的平衡通过止推轴承来保证；箱体由箱座、箱盖和顶盖组成，其中箱体上设计了圆台和加强筋；最后，对各零件进行装配。
关键词：数控凸轮轴旋转转台；箱体；结构；设计；蜗杆；齿轮
ABSTRACT
With the development of productivity, numerical control technology is becoming more and more widely used in various fields.The CNC grinding machine is the most important in the development, the demand is enlarged, we must study the whole body and design the numerical control grinding machine which is favorable for the processing..
The graduation design is the problem of CNC camshaft grinder rotating table design. By of grinding machine for rotating the turntable design, make me before stepping into the society, not only to general understanding of camshaft grinder rotary turntable general function, but also can master the methods and steps of mechanical design.
CNC cam shaft for rotating the turntable is a circular feed and indexing movement worktable can be realized. It is often used in grinding machine and CNC machining centers, improve processing efficiency, more technology, which is mainly composed of a driving force, gear transmission, worm drive, such as working platforms and space for worm elimination and step up, is a very useful tool for processing. This paper mainly introduces its principle and mechanical structure design, and the above parts of the use of AUTOCAD chart.
CNC camshaft rotating the turntable design, first of all, for the overall program design, transmission scheme by gear transmission and worm transmission; then the parts of the design and checking, worm shaft and by integral structure; worm gear and work table adopts screw connection; the balance of the worktable through the thrust bearing to ensure; box is composed of a box seat, a box cover and the cover, which box design for circular and reinforcing ribs. Finally, the parts assembly.
Keywords: CNC rotary table; box; structure; design; worm; gear
随着生产力水平的发展，数控技术越来越广泛的应用于各个领域。而数控磨床更是发展中的重中之重，需求量扩大，我们必须全身心研究并设计出利于加工生产的数控磨床。
本次 设计的题目是数控凸轮轴磨床旋转转台设计。通过对磨床旋转转台的设计，使我在步入社会之前，不仅能够大体了解凸轮轴磨床旋转转台的大体功用，而且能够掌握机械设计的方法和步骤。
数控凸轮轴旋转转台是一种可以实现圆周进给和分度运动的工作台，它常被使用于磨床和数控加工中心上，可提高加工效率，完成更多的工艺，它主要由原动力、齿轮传动、蜗杆传动、工作台等部分组成，并可进行间隙消除和蜗轮加紧，是一种很实用的加工工具。本课题主要介绍了它的原理和机械结构的设计，并对以上部分运用AUTOCAD做图。
数控凸轮轴旋转转台的设计，首先，进行总体方案设计，传动方案采用齿轮传动和蜗杆传动；然后进行各零件的设计与校核，蜗杆与轴采用整体式结构；蜗轮与工作台采用螺钉连接；工作台的平衡通过止推轴承来保证；箱体由箱座、箱盖和顶盖组成，其中箱体上设计了圆台和加强筋；最后，对各零件进行装配。
关键词：数控凸轮轴旋转转台；箱体；结构；设计；蜗杆；齿轮
ABSTRACT
With the development of productivity, numerical control technology is becoming more and more widely used in various fields.The CNC grinding machine is the most important in the development, the demand is enlarged, we must study the whole body and design the numerical control grinding machine which is favorable for the processing..
The graduation design is the problem of CNC camshaft grinder rotating table design. By of grinding machine for rotating the turntable design, make me before stepping into the society, not only to general understanding of camshaft grinder rotary turntable general function, but also can master the methods and steps of mechanical design.
CNC cam shaft for rotating the turntable is a circular feed and indexing movement worktable can be realized. It is often used in grinding machine and CNC machining centers, improve processing efficiency, more technology, which is mainly composed of a driving force, gear transmission, worm drive, such as working platforms and space for worm elimination and step up, is a very useful tool for processing. This paper mainly introduces its principle and mechanical structure design, and the above parts of the use of AUTOCAD chart.
CNC camshaft rotating the turntable design, first of all, for the overall program design, transmission scheme by gear transmission and worm transmission; then the parts of the design and checking, worm shaft and by integral structure; worm gear and work table adopts screw connection; the balance of the worktable through the thrust bearing to ensure; box is composed of a box seat, a box cover and the cover, which box design for circular and reinforcing ribs. Finally, the parts assembly.
Keywords: CNC rotary table; box; structure; design; worm; gear
目 录
第一章 绪论 1
1.1 课题的学术背景及理论与实际意义 1
1.2 课题研究的目的与意义 1
1.3 课题研究的方法与主要创新点 1
1.4 课题研究的主要内容 2
1.5 研究项目的发展趋势 2
1.6 数控技术发展趋势 2
1.6.1 性能发展方向 2
1.6.2 功能发展方向 3
1.6.3 体系结构的发展 4
1.6.4 智能化新一代PCNC数控系统 5
第二章 数控凸轮轴旋转转台的设计准则及原理与应用 5
2.1 数控凸轮轴旋转转台的设计准则 5
2.2 数控凸轮轴磨床旋转转台的工作原理 6
2.3 数控凸轮轴磨床旋转转台的主要组成部分 7
2.4 数控凸轮轴磨床旋转转台的主要设计参数 9
第三章 数控旋转转台的结构设计 9
3.1 传动方案传动时应满足的要求 9
3.1.1 传动方案及其分析 10
3.1.2 电动机的选择 12
3.2 电液脉冲马达的选择及运动参数的计算 15
3.3 确定电机转速 16
第四章 主要零部件的设计 17
4.1 齿轮传动的设计 17
4.1.1 选择齿轮传动的类型 17
4.1.2选择材料 17
4.1.3 按齿面接触疲劳强度设计 18
4.2 蜗轮及蜗杆的选用与校核 21
4.2.1 选择蜗杆传动类型 22
4.2.2 选择材料 22
第一章 绪论 1
1.1 课题的学术背景及理论与实际意义 1
1.2 课题研究的目的与意义 1
1.3 课题研究的方法与主要创新点 1
1.4 课题研究的主要内容 2
1.5 研究项目的发展趋势 2
1.6 数控技术发展趋势 2
1.6.1 性能发展方向 2
1.6.2 功能发展方向 3
1.6.3 体系结构的发展 4
1.6.4 智能化新一代PCNC数控系统 5
第二章 数控凸轮轴旋转转台的设计准则及原理与应用 5
2.1 数控凸轮轴旋转转台的设计准则 5
2.2 数控凸轮轴磨床旋转转台的工作原理 6
2.3 数控凸轮轴磨床旋转转台的主要组成部分 7
2.4 数控凸轮轴磨床旋转转台的主要设计参数 9
第三章 数控旋转转台的结构设计 9
3.1 传动方案传动时应满足的要求 9
3.1.1 传动方案及其分析 10
3.1.2 电动机的选择 12
3.2 电液脉冲马达的选择及运动参数的计算 15
3.3 确定电机转速 16
第四章 主要零部件的设计 17
4.1 齿轮传动的设计 17
4.1.1 选择齿轮传动的类型 17
4.1.2选择材料 17
4.1.3 按齿面接触疲劳强度设计 18
4.2 蜗轮及蜗杆的选用与校核 21
4.2.1 选择蜗杆传动类型 22
4.2.2 选择材料 22
4.2.3 按齿面接触疲劳强度设计 22
4.3 蜗杆与蜗轮的主要参数与几何尺寸 23
4.3.1 蜗杆 23
4.3.2 蜗轮 24
4.3.3 校核蜗轮齿根弯曲疲劳强度 25
4.4 轴承的选用 26
4.4.1 轴承的游隙及轴上零件的调配 27
4.4.2 滚动轴承的配合 27
4.4.3 滚动轴承的润滑 27
4.4.4 滚动轴承的密封装置 27
4.4.5 验算轴承寿命 29
4.4.6 轴1的校核与计算 29
4.4.7 蜗杆上开轴2的结构设计 34
第五章 结 论 38
参考文献 39
总结与致谢 40
