| C620机床的数控改造 简介： 摘 要 机床数控化改造可以加工出传统机床加工不出来的曲线、曲面等复杂的零件。数控机床比传统机床有以下突出的优越性，由于计算机可以瞬时准确地计算出每个坐标轴瞬时应该运动的运动量，因此可以复 摘 要 机床数控化改造可以加工出传统机床加工不出来的曲线、曲面等复杂的零件。数控机床比传统机床有以下突出的优越性，由于计算机可以瞬时准确地计算出每个坐标轴瞬时应该运动的运动量，因此可以复合成复杂的曲线或曲面；可以实现加工的自动化，而且是柔性自动化，从而效率可比传统机床提高3～7倍；由于计算机有记忆和存储能力，可以将输入的程序记住和存储下来，然后按程序规定的顺序自动去执行；加工零件的精度高，尺寸分散度小，使装配容易，不再需要"修配"；可实现多工序的集中，减少零件 在机床间的频繁搬运；拥有自动报警、自动监控、自动补偿等多种自律功能，因而可实现长时间无人看管加工。 数控机床，在设计上要达到：有高的静动态刚度；运动副之间的摩擦系数小，传动无间隙；功率大；便于操作和维修。机床数控改造时应尽量达到上述要求。不能认为将数控装置与普通机床连接在一起就达到了数控机床的要求，还应对主要部件进行相应的改造使其达到一定的设计要求，才能获得预期的改造目的。 机床数控改造主要步骤：改造前的技术准备，原机床的全面保养，保留的电气部分最佳化调整，原系统的拆除必须对照原图纸，仔细进行，及时在图纸上作出标记，防止遗漏或过拆(局部改造情况下)。根据新系统设计图纸，合理进行新系统配置，包括箱体固定、面板安放、线路走向和固定、调整元器件位置、密封及必要装饰等。最后进行调试。 关键词：车床改造 数控化 Abstract Numerical control lathe have following outstanding superiority than traditional lathe include:Can process out complicated parts, such as the curve coming out in traditional machine tooling, curved surface,etc;Because computer have superb operation ability is can instantaneous to calculate out each coordinate axis instantaneous amount of exercise that should move accurate, So can compound into the complicated curve or curved surface ;Can realize automation that process is and flexible automation, so efficiency constant traditional lathe raises by 3-7 times;Because the computer has memory and stores ability ,Can carry out automatically according to the order that the procedure stipulates,so realize automation;Processing precision of part high, size disperse degree light, make and assemble easy, No longer need to" repair the damaged parts of a machine and supply replacements";Can realize the concentration of many processes,have many kinds of self-containment functions,such as autoalarm, controlling, automatic compensation automatically,etc;Therefore can realize that nobody guards and processes for a long time. A new numerical control lathe , should reach in the design: There is high quiet dynamic rigidity ; The coefficient of friction between the vice sport is little, the transmission has no interval ; The power is large; Easy to operate and maintenance. Lathe numerical control should try one's best and reach and require while being above-mentioned when the transformation. Can't think and link numerical control device and ordinary lathe together and reach numerical control request of lathe, Also should carry on to main part corresponding transformation enable their's reaching certain designing requirement, Purpose of transforming that could be expected The numerical control of lathe transforms the key step: The technology of the transformation is prepared, Whether the technology before transforming made adequate preparation , is determining to a great extent whether the transformation could achieve success . Technology plans to include; Overall maintenance of the original lathe; Electric best to take and change part that keep; To remove and must contrast the art of work paper original system, go on carefully, make marks at the drawing in time, Prevent omitting or pass and dismantle( under the situation of transforming of part). According to the new system design drawing, carry on the new system disposition rationally, Including case body regular, panel lay, circuit move towards and be regular, adjust components and parts position, seal and not essential to decorate etc.At last debugging it. key words：numberical control;lathe reform; </DIV>
<DIV class=Section3 style="LAYOUT-GRID: 15.6pt none">目 录 第1章 绪论. 1 1．1 数控机床的产生与发展过程. 1 1．1．1 计算机促进了数控机床的发展. 1 1．1．2 数控机床的产生与发展过程. 1 1．2 数控机床的工作原理. 2 1．3 数控机床的组成. 2 1．4 经济型数控机床的特点以及主要功能. 3 1．4．1 经济型数控机床的特点. 3 1．4．2 经济型数控车床的主要功能. 4 第2章 开放式数控系统. 5 2．1 开放式数控系统概述. 5 2．1．1 开放式数控系统产生的历史背景. 5 2．2 开放式数控系统的特征. 5 2．3 我国开放式数控系统的发展概况. 6 2．3．1 中华I型数控系统. 6 2．3．2 华中I型数控系统. 9 2．3．3 航天数控系统平台. 10 2．3．4 蓝天系列CNC系统. 11 2．3．5 10T CNC系统. 14 第3章 C620机床的数控化改造的典型机械部件. 16 3．1 概述. 16 3．2 电液脉冲液压马达. 17 3．2．1 电液脉冲液压马达的一般特性. 17 3．2．2 电液脉冲液压马达的主要性能要求. 18 3．3 主轴脉冲发生器. 19 3．4 滚珠丝杠螺母副. 20 3．5 自动回转刀架. 21 第4章 C620的数控化改造. 23 4．1 改造要求. 23 4．2 总体方案确定. 23 4．3 机械部分改造设计与计算. 24 4．3．1 纵向进给系统的设计计算. 24 4．3．2 横向进给系统的设计计算. 30 4．4 车床改造的结构特点. 35 4．4．1 车床进给系统. 35 4．4．2 主轴脉冲发生器. 37 4．4．3 安装自动回转刀架. 37 4．5 安装调整中应注意的问题.. 39 第5章 C620车型车床改造数控系统选型设计. 40 5．1 数控系统的选型. 40 5．1．1 FANUC 0-C系列. 40 5．1．2 FANUC 0i系列. 41 5．2 数控机床的伺服系统. 42 5．2．1 确定伺服进给系统的数学模型. 43 5．2．2 典型零件的数控编程举例. 44 结 论. 46 致 谢. 49 参考文献. 50 备 注. 51 | 
