车床改造6410

摘要 (2)

Abstract (3)

绪论………………………………………………………………………………………

2数控车床 (2)

2.1数控车床的组成原理及其分类 (2)

2.1.数控车床的组成及其工作原理 (2)

2.1.2数控车床的分类 (4)

2.2数控车床的工作过程 (4)

第二章CA6140车床进给伺服系统机械部分设计计算 (8)

2.1进给伺服系统机械部分的改造方案 (8)

2.2进给伺服机构机械部分的设计计算 (9)

2.3滚珠丝杠螺母副的计算和选型、校核 (9)

2.4纵向及横向滚珠丝杠副几何参数 (14)

2.5齿轮传动比计算 (15)

7．安装调整中应注意的问题 (31)

7.1滚珠丝杠副的特点 (31)

7.2滚珠丝杠螺母副的选择 (32)

7.3滚珠丝杠螺母副的调整 (32)

7.4联轴器的安装 (32)

7.5主轴脉冲发生器的安装第三章C A6140车床进给部分电机的选择 (16)

3.1纵向进给步进电机计算 (16)

3.2横向进给步进电机计算 (1)

第四章C A6140车床刀架部分的改造 (23)

4.1刀架的选用 (23)

总结 (25)

参考文献 (26)

致谢………………………………………………………………………………………

摘要

随着科学技术的不断发展和完善，电力电子技术、微电子技术及现代控制理论的发展，机械控制加工方面也有了很大的突破，由原来的人力到纯机械控制部件到今天的以微机为中心的自动控制系统，可谓有了一个质的变化。普通机床的出现节省了不少人力劳动，同时也减少了工作时间，由于科技的不断进步，普车的加工精度，加工质量，以及加工零件的复杂性都已不能满足市场的需求，就出现了数控机床，弥补了普通机床的不足。数控机床完全由计算机控制，人只需要往计算机内输入程序，装卸工件，开关机器，既节省了时间又节省了人力还保证了加工零件的质量，因此被广泛应用。由于经济的不断发展，人们的要求也在不断提高，数控机床系统也需要做进一步的改进。本文主要对数控车床的刀架以及数控工作台进行了系统设计，通过采用自动回转刀架提高了工件加工效率，减少了多次安装所引起的加工误差，实现了一次装夹完成多工序加工。

关键词：自动控制；数控机床；改进；自动回转刀架

Abstract

With the continuous development of science and technology, power electronics technology, microelectronic technology and the development of modern control theory, mechanical control processing has been a major breakthrough from the human to the purely mechanical control components to today's PC-centric to automatic control system can be described as a qualitative change. The emergence of general machine tools save a lot of human labor, but also a reduction of working hours, because of technological advances in the machining accuracy Pu cars, processing quality, as well as the complexity of the processing components have been unable to meet the needs of the market,there are NC The emergence of machine tools, made up

for theinadequacy of general machine tools. CNC machine tools entirely by a computer to control, people just go to the computer input procedures, loading and unloading the workpiece, switch machines, saving time and saving human also guarantees the quality of machining parts, it is widely used. Because of the continuous development of the economy, people's requirements are also constantly improve, numerical control machine tool system also needs to make further improvements. This paper mainly on the turret CNC lathe and a CNC table system design, through the use of automatic rotation of the workpiece processing tool carrier improve efficiency and reduce the installation caused by a number of processing errors, achieve a clamping completed many processes processing.

Keywords:automatic control; NC machine tool; improved; automatic rotary tool holder

第一章：绪论

1毕业设计的目的

毕业设计是培养我们理论联系实际，解决生产实际问题能力的重要步骤，它系统的检验了我们是否合格的毕业生、它通过对机床数控系统设计总体法案的拟定，进给伺服系统机械部分的结构设计，计算控制系统硬件电路的设计以及数控加工、程序的编制，是我们综合运用所学的机械，电子和微机的知识进行一次机电结合的全面训练，从而培养了我们具有加工编程能力，初步设计计算的能力以及分析和处理生产中所遇到的机电方面技术问题的能力。

2毕业设计的内容：

1、微机数控系统总体设计方案的拟定：

（1）系统运动方式的确定

（2）伺服系统的选择

（3）执行机构传动方式的确定