有哪些信誉好的足球投注网站- 1、本文档共34页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
毕业论文（设计）
题目：车床Z向进给数控改造
校区(函授站)：
专 业
班 级
学 号：
学生姓名：
导师姓名：
起止时间：
毕业论文（设计）任务书
学生姓名 指导教师 职称
校区(函授站) 专业 机电一体化
题目 车床Z向进给数控改造
任务与要求
1．完成一台机床工作台的数控改造；要求工作台能实现点位(或连续)控制；
2．改造部分进给伺服系统一个坐标轴的机械装配图一张（A1）；
3．计算机I/O接口、驱动电路等电路原理设计图一张（A1）；
4．设计说明书8000字左右（前言，控制系统总体方案的分析及框图，机械部分设计计算，机构设计说明，硬件电路设计说明，技术经济分析，结束语，参考文献，后记，附录）；
5. 选步进电机为驱动电机，脉冲当量取0.01mm/step；
6. 旋转——移动的转换用滚动丝杠；
7. 能用键盘输入命令，控制工作台；能实时显示工作台当前运动位置；有超越边界报警，并停止运动。
原始数据：
1. 工作台（或刀架）重G=180N；
2．工作台行程L=0～300mm；
3．工作台最大移动速度Vmax=3m/min；
工作台工作进给速度Vmax=1m/min；
4．切削分力：FX=420 N，FY= 1100N，FZ=1660 N；
5．工作台尺寸：300×550mm2；
6．各传动部件的设计寿命15000～48000h。
开始日期 完成日期
目录
概述···············································································1
总体设计方案的拟订··················································5
总体方案确定································································5
经济型数控车床总体方案框图··················································6
车床进给伺服系统机械部分设计计算······························7
选择脉冲当量·······························································7
计算切削力·································································7
滚珠丝杠螺母副的计算和选型·················································7
2.3.1 计算进给牵引力Fm··························································7
2.3.2 计算最大动负载C···························································7
2.3.3 滚珠丝杠螺母副的选型·······················································8
2.3.4 传动效率计算·······························································8
2.3.5 刚度验算···································································8
2.3.6 稳定性校核·································································9
2.3.7 滚珠丝杠副几何参数·························································9
2.4 齿轮传动比计算······························································10
2.5 步进电机的计算和选型························································10
2.5.1 初选步进电机··························································
文档评论（0）