毕业论文 t619镗床电气控制系统.doc

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毕业论文 t619镗床电气控制系统,摘要现代机器向着高速度高效率高精度方向的发展,对机器制造业也提出了新的要求:机器零件的精度越来越高。同时,结构也日趋复杂,特别是箱体零件具有孔系多的特点,它的加工除了本身又尺寸精度的要求外,还有形状精度和孔系之间相对位置精度的要求。镗床主要用于加工精确的孔和各孔间的距离要求较为精确的零件。目前国内使用镗床90%都是使用...
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摘 要
现代机器向着高速度高效率高精度方向的发展,对机器制造业也提出了新的要求:机器零件的精度越来越高。同时,结构也日趋复杂,特别是箱体零件具有孔系多的特点,它的加工除了本身又尺寸精度的要求外,还有形状精度和孔系之间相对位置精度的要求。
镗床主要用于加工精确的孔和各孔间的距离要求较为精确的零件。目前国内使用镗床90%都是使用继电器-接触器传统的控制方式,这种方式使机械震动噪声大,接线复杂,维修工作量大。
孔加工一般可在钻床、车床、镗床、拉床、内圆磨床上进行,有些工件也在镗床上加工。镗床加工的特点是:主运动由刀具作旋转来完成,而进给运动是由主轴或工作台的移动来达到,并且可以通过镗床工作台的三个方向移动,很方便、准确地调整切削刀具与工件的相对位置。因此在镗床上进行钻孔、铰孔和镗孔也是一种重要的加工方法。
T619镗床传统的继电器接触器控制系统存在着复杂性、故障率高、维护工作量大、可靠性差、灵活性差等缺点;给生产与维护带来诸多不便,严重地影响生产。采用可编程序控制器 对T619镗床传统的电气控制系统进行改造,在实际生产线上有着明显的效率,这也使整个生产系统带来推动的力量。单片机对T619镗床电气控制系统的改造设计,提高了T619镗床电气控制系统的可靠性和抗干扰能力。

关键字:镗床 单片机 改造
ABSTRACT
The development of modern high-efficiency high accuracy direction of the machine facing high speed degree also put forward a new request to the machine manufacturing industry:The accuracy of the machine parts is more and more high.In the meantime, the structure is also gradually complicated, especially the box body spare parts have bore to fasten many characteristicses, it of process in addition to oneself again the request of size accuracy outside returns the request of opposite position accuracy that visible form accuracy and bore fasten.
The Tang bed mainly useds for bore and the distance of each bore which processes a precision to request more accurate spare parts.Currently local usage Tang bed all of 90%s be usages after the electric appliances-contact the machine traditional control method, this kind of way makes the machine vibrate a Zao voice greatly and connect line complications, maintain a work to have great capacity.
The bore processes generally can in drill the bed, lather, Tang bed, pull the bed, circle grinding machine up carry on, some work piece also processes on the Tang bed.The characteristics that the Tang bed process is:Lord sport is make by the knife to revolve to complete, but enter is attain by the ambulation of the principal axis or the work pedestal for sport, and can pass the Tang bed work pedestal of three direction ambulation, very convenient, accurately the adjustment slice to pare knife to have and the opposite position of work piece.Therefore Be on the Tang bed carry on drill a hole, Jiao bore and Tang bore are importantly also 1 kind to process a method.
The T619 Tang bed traditionally exists complexity, breakdown rate after the electric appliances contact machine control system Gao, maintenance the work have great capacity, credibility bad, vivid bad etc. weakness;Bring production and maintenance many inconvenience, seriously the influence produce.Adopt programmable preface controller to carry on a reformation to the traditional electricity control system of the T619 Tang bed, at actual produce on-line have an obvious efficiency, this also makes the whole production system bring the strength of push.Single slice reformation design of machine to the electricity control of the T619 Tang bed system, raised the T619 Tang bed electricity a control system of credibility and anti- interference ability
目 录
摘 要 1
ABSTRACT 2
绪 论 5
第一章 T619机床的用途、主要结构和运动 6
第一节 机床的电力拖动方式 8
第二节 T619型卧式镗床运动对电气控制电路的要求 8
第三节 控制电路的分析 8
1、主轴电动机M1的电路分析 8
2、电动机M2的电路分析 9
第四节 主电路的分析 10
第五节 联锁保护环节的分析 10
第三章 T619镗床电气控制系统的单片机改造 10
第一节 单片机原理概述 10
第二节 单片机的应用系统 11
第三节 AT89C51简介 12
第四节 T619镗床单片机控制程序设计 15
1.工作原理 15
2.控制程序 17
参考文献 29
附录A 30
总结 31