TK42200数控镗铣床增加刀库的改造

摘要

In order to solve the TK42200 NC boring and milling machine to realize the automatic tool change, will increase in Machine Tool Retrofit techniques applied to the NC machine tool function expan-sion. Analysis of the method to control the tool change, proposed by NC and PLC combined control method of tool change, design the fixed cycle and the PLC control program NC changer. After debugging tool li-brary transformation can reliably tool change, tool change and product processing of experiment, the experi-mental results show that:the tool changing high repeat precision, the product quality, reducing the labor in-tensity of operators, by modifying the system variables to repair tool table the knife has the advantages of simple operation.%为了解决TK42200数控镗铣床实现自动换刀的问题，将在机床上增加刀库的改造技术应用到数控机床功能扩展中。开展了换刀控制方法的分析，提出了NC和PLC相结合共同控制换刀的方法，设计了NC换刀固定循环程序和PLC控制程序。刀库改造调试后能够稳定可靠地换刀，进行换刀和产品加工的实验，实验结果表明：换刀重复精度高，产品质量合格，减轻了操作人员劳动强度，通过修改系统变量来修复刀具表使刀库操作简单了。