一种多工位复合自动钻床的设计  

Design of a multiple station combined automatic drilling machine

作　　者：李益东[1] 严思杰[1] 廖黎波[2] 杨自建 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074 [2]华中科技大学土木工程与力学学院,湖北武汉430074 [3]宁波赛维思机械有限公司,浙江宁波315135

出　　处：《机电工程》2012年第12期1419-1422,共4页Journal of Mechanical & Electrical Engineering

摘　　要：针对圆孔和螺纹孔加工中的多次装夹定位引起的误差和效率问题,设计研究了多工位复合自动钻床。采用了台达ES2系列可编程逻辑控制器(PLC)作为控制系统的核心控制器,以驱动并控制交流伺服系统和变频调速系统;控制系统采用了基于MODBUS-RTU协议的RS485通讯网络,并建立了高速稳定的通讯网络系统;采用人机界面(HMI)实现了参数设置和状态监控;设计了4种不同刀具,可实现多种加工工序的整合。实际运行结果显示:该钻床刀具的最大定位误差为0.1 mm,刀具重复定位误差为0.02 mm,所加工的螺纹孔正常,机床整体运行较稳定,能够满足用户基本加工要求。Aiming at the processing errors and efficiency problems caused by multiple clamping positioning which exists in machining of a circular hole and threaded hole, a project for the design and research of multiple station combined automatic drilling machine was established. DVP-ES2 programmable logic controller （PLC）was used as the core controller of the control system in order to control the AC servo system and the frequency control system. RS485 communication network based on MODBUS-RTU protocol was designed to create a high-speed and stable communication network system. Human machine interface（HMI）was used to set parameters and monitor status. Four tools were designed for the combination of different manufacturing procedures. The operation results show that the maximum positioning error of tools has 0.1 mm, the repeated positioning error of tools has 0.02 mm, the threaded holes processed by this drilling machine are normal, this drilling machine runs stably and can meet the basic processing requirements.

关 键 词：多工位复合自动钻床 MODBUS—RTU 交流伺服控制 PLC 

分 类 号：TG52[金属学及工艺—金属切削加工及机床] TH122[机械工程—机械设计及理论]