2024年5月17日发(作者：董宣)
T68卧式镗床电气控制的PLC设计改造
摘 要
本课题探讨了T68型卧是式镗床的PLC改造控制系统的实现方案。根据
实际需要和市场的需求，选择了以三菱公司的可编程控制器作为控制方案。
镗床是冷加工中使用比较普遍的设备它主要用于加工精度、光洁度要求
较高的孔以及各孔间的距离要求较为精确的零件（如一些箱体零件），属于精密机
床
[19]
。主要用于加工工件上的精密圆柱孔。这些孔的轴心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。其原控制电路为继电器控制，接触触点多、
线路复杂、故障多、操作人员维修任务较大，为了克服以上缺点，降低设备故障
率，提高设备使用效率，针对这种情况，我们用PLC控制改造其继电器控制电路。
通过对T68型卧式镗床工作原理的分析，设计出PLC改造系统的控制电路，
对系统的输入、输出点进行统计，共有24个输入点，24个输出点，输入输出都是
开关量
[20]
。选用日本三菱公司生产的FX2N-48MR可编程序控制器，分配PLC的
I/O地址，设计PLC外围电路，确定PLC的I/O接线图。根据镗床的控制要求和
特点，列出逻辑代数表达式，采用逻辑设计方法进行梯形图设计。最终达到了系
统改造的要求，并且运行效果良好。
关键词： 可编程控制器， T68镗床， 梯形图， 改造
英文题目
ABSTRACT
T68 HORIZONTAL BORING MACHINE PLC
ELECTRICAL DESIGN CONTROLLED
TRANSFORMATION
ABSTRACT
T68 of the topics discussedis the type Horizontal Boring Machine transformation
of the PLC program control system. According to actual needs and the needs of the
market, Mitsubishi has chosen the company's programmable logic controller as a
control.
Boring is the more common use of cold working of the equipment it is mainly used
for precision machining, finish the hole and the higher the distance between the holes
require a more precise parts (such as some of tank parts), are precision machine tool.
Mainly used for precision machining of cylindrical workpieces on the hole. Axis line of
these holes tend to demand strict parallel or perpendicular to the distance between each
other also requires very accurate. Its original control circuit for the relay control,
contact-contact and more complex circuits, fault and more the operator a larger
maintenance tasks, in order to overcome the shortcomings of the above, reducing the
failure rate of equipment to improve efficiency in the use of the equipment, in view of
this situation, we to transform their use of PLC control relay control circuit.
T68 through horizontal boring machine working principle of the analysis, design of
PLC control circuit transformation system, the system input and output points to
statistics, a total of 24 input, 24 output points are input and output switch. Japan's
Mitsubishi company selected the FX2N-48MR PLC, the distribution of PLC's I / O
addresses, the design of peripheral circuits PLC, PLC to determine the I / O wiring
diagram. Boring machine control in accordance with the requirements and
2024年5月17日发(作者：董宣)
T68卧式镗床电气控制的PLC设计改造
摘 要
本课题探讨了T68型卧是式镗床的PLC改造控制系统的实现方案。根据
实际需要和市场的需求，选择了以三菱公司的可编程控制器作为控制方案。
镗床是冷加工中使用比较普遍的设备它主要用于加工精度、光洁度要求
较高的孔以及各孔间的距离要求较为精确的零件（如一些箱体零件），属于精密机
床
[19]
。主要用于加工工件上的精密圆柱孔。这些孔的轴心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。其原控制电路为继电器控制，接触触点多、
线路复杂、故障多、操作人员维修任务较大，为了克服以上缺点，降低设备故障
率，提高设备使用效率，针对这种情况，我们用PLC控制改造其继电器控制电路。
通过对T68型卧式镗床工作原理的分析，设计出PLC改造系统的控制电路，
对系统的输入、输出点进行统计，共有24个输入点，24个输出点，输入输出都是
开关量
[20]
。选用日本三菱公司生产的FX2N-48MR可编程序控制器，分配PLC的
I/O地址，设计PLC外围电路，确定PLC的I/O接线图。根据镗床的控制要求和
特点，列出逻辑代数表达式，采用逻辑设计方法进行梯形图设计。最终达到了系
统改造的要求，并且运行效果良好。
关键词： 可编程控制器， T68镗床， 梯形图， 改造
英文题目
ABSTRACT
T68 HORIZONTAL BORING MACHINE PLC
ELECTRICAL DESIGN CONTROLLED
TRANSFORMATION
ABSTRACT
T68 of the topics discussedis the type Horizontal Boring Machine transformation
of the PLC program control system. According to actual needs and the needs of the
market, Mitsubishi has chosen the company's programmable logic controller as a
control.
Boring is the more common use of cold working of the equipment it is mainly used
for precision machining, finish the hole and the higher the distance between the holes
require a more precise parts (such as some of tank parts), are precision machine tool.
Mainly used for precision machining of cylindrical workpieces on the hole. Axis line of
these holes tend to demand strict parallel or perpendicular to the distance between each
other also requires very accurate. Its original control circuit for the relay control,
contact-contact and more complex circuits, fault and more the operator a larger
maintenance tasks, in order to overcome the shortcomings of the above, reducing the
failure rate of equipment to improve efficiency in the use of the equipment, in view of
this situation, we to transform their use of PLC control relay control circuit.
T68 through horizontal boring machine working principle of the analysis, design of
PLC control circuit transformation system, the system input and output points to
statistics, a total of 24 input, 24 output points are input and output switch. Japan's
Mitsubishi company selected the FX2N-48MR PLC, the distribution of PLC's I / O
addresses, the design of peripheral circuits PLC, PLC to determine the I / O wiring
diagram. Boring machine control in accordance with the requirements and