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编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第PAGE31页共NUMPAGES31页第PAGE\*MERGEFORMAT31页共NUMPAGES\*MERGEFORMAT31页目录总体方案确定.......................................41.1、C6132工艺范围...................................41.2、设计任务.........................................41.3、总体方案.........................................41.3.1、进给系统改造.................................41.3.2、伺服系统改造.................................51.3.3、导轨改造.....................................61.3.4、控制系统改造.................................61.3.5、系统框图.....................................62、机械部分改造........................................62.1、C6132普通车床的改造.............................62.2、切削力的计算....................................62.2.1、主切削力....................................72.2.2、进给力与背吃刀力.............................72.2.3、工作载荷....................................72.3、滚珠丝杠的计算及选型.............................82.3.1、丝杠转速....................................82.3.2、承载能力计算.................................82.3.3、计算额定载荷.................................92.3.4、滚珠丝杠螺母选型............................102.3.5、压杆稳定性校核..............................112.3.6、刚度演算...................................122.3.7、传动效率...................................122.3.8、临界转速...................................122.3.9、最大转速...................................132.3.10、压弯临界转速...............................132.3.11、预紧力....................................132.3.12、丝杠与导轨间接触变性.......................142.4、减速齿轮的计算.................................142.5、步进电机的计算及选型............................162.5.1、反应式步进电机特性..........................172.5.2、步进电机选型考虑因素........................182.5.3、步进电机初选................................192.5.4、步进电机校核................................202.6、导轨的选型......................................24数控部分硬件电路设计..............................243.1、硬件电路组成...................................243.2、中央处理器选择.................................223.3、存储器的扩展及选型.............................233.4、其他电路设计..............................