摘要
随着机械工业的发展,作为工作母机的各类机床得到了广泛的应用,而这些机床的自动化和精密程度却有很大差异。在欧美、日本等国家里,他们的机床数控化程度都相对比较高,但在我国国内的机床大约有90%多还处于老式的继电器控制下。由于继电器控制的机床有耗材、耗能、故障率高的缺陷,从而浪费了很多的人力、物力和财力。如果说把这些机床全部都更新换代,那样会需要很大一笔资金,就目前情况上来说是不现实的,所以就有人开始尝试从控制部分的改造方面来下手,将它们的性能提升一个档次,更可以解决它的一些弊端。
基于以上情况,我选择了用PLC来完成T6113卧式镗床的电气控制部分这个题目,目的是使机床能快速响应动作,灵活可靠的完成生产任务,而故障率要相应降低。PLC以内部的逻辑触点代替了继电器的机械触点,来控制机床的动作,逻辑触点与机械触点相比动作时间大大缩短,连接快而可靠,还有就是它的寿命比机械触点有很大幅度的增长,可达到几百万次到千万次。
经过设计并作了实物的演示,结果证明了设计的成功。
关键词:继电器 故障率 逻辑触点
Abstract
Was each kind of tool machine of the machine tool to get an extensive application along with the development of the machine industry, but the automation and precise degree of these tool machines contain very big difference. In the Europe and America, Japanese etc. nation, their tool machine number controls to turn degree all opposite higher, but at our country the local tool machine has 90% about to still be placed in old style much of after electric appliances control under. In order to hasing already consumed a material, consume an ability and breaking down high blemish of rate after the tool machine of the electric appliances control, waste a lot of man powers, material resource and financial power thus. If say that all renewing these tool machines changes generation, will need so very greatly one fee for writing gold, the circumstance comes up to say to be not realistic currently, so start try for someone to start from the reformation aspect of the control part, promote their function a file time, can even solve some of its irregularities. 〖毕业设计(论文)咨询QQ:306826066〗
According to the above circumstance, I chose to use parts of this topics of the electricity control that the PLC completes the T6113 lie type beds, the purpose makes the tool machine be able to respond to action quickly, the vivid and dependable completion production mission, but break down a rate and correspond to lower. The PLC touched to order to replace by the logic of the inner part after the machine of the electric appliances touch a point, control the action of the tool machine, the logic touches to order to touch with machine to order to compare action time to shorten consumedly, conjunction quick but credibility, also have to be its life span ratio machine to touch to order to have a very significant growth, can attain several million times arrive the ten million time.
Through design and made real object to play to show, success proven a design as a result.
Keyword: After electric appliances Breakdown rate The logic touches to order
选题的目的和意义
由于现代加工技术的日益提高,对加工机床特别是工作母机的要求也越来越高,由此人们也将注意力集中到机床上来,数控技术是计算机技术、信息技术、现代控制技术等发展的产物,他的出现极大的推动了制造业的进步。机床的控制系统的优劣与机床的加工精度息息相关,特别是PLC广泛应用于控制领域后,已经显现出它的优越性。可编程控制器PLC已广泛应用于各行各业的自动控制。在机械加工领域,机床的控制上更显示出其优点。由于镗床的运动很多、控制逻辑复杂、相互连锁繁多,采用传统的继电器控制时,需要的继电器多、接线复杂,因此故障多维修困难,费工费时,不仅加大了维修成本,而且影响设备的功效。采用PLC控制可使接线大为简化,不但安装十分方便而且工作可靠、降低了故障率、减小了维修量、提高了功效。 〖资料来源: 毕业设计(论文)网〗
T6113卧式镗床主要结构
镗床是一种精密加工机床,主要用于加工精密圆柱孔,这些孔的轴线往往要求严格地平行或垂直。相互间的距离也要求很准确,镗床本身刚性好,其可动部分在导轨上活动间隙很小,而且有附加支撑。
卧式镗床用于加工各种复杂大型工件,如箱体零件、机床等,是一种功能很大的机床。除了镗孔外,还可以进行钻、扩、绞孔以及车削内外螺纹,用丝锥攻螺纹,车外圆柱面和端面。
〖毕业设计(论文)咨询QQ:306826066〗
目录 20000字
摘要……………………………………………………………………Ⅰ 〖毕业设计(论文)咨询QQ:306826066〗
Abstract………………………………………………………………Ⅱ
第1章 绪论………………………………………………………… 1
1.1 选题的目的和意义…………………………………………1
1.2 关于课题的一些介绍和讨论………………………………1
1.3 电气控制技术的发展………………………………………2
1.4 PLC的发展史及特点………………………………………4
〖资料来源:毕业设计(论文)网 WWW.〗
〖资料来源: 毕业设计(论文)网〗
〖资料来源:毕业设计(论文)网 5 6 D O C.C O M〗
PLC(34)电气控制(2)T6113(1)卧式镗床(1)机电一体(1)
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