Research On Automatic Tool Change(ATC)and Control Of Horizontal Machining Center Based On FANUC System

The Automatic tool change system of the horizontal machining center(ATC)is an important part of understanding the automatic processing of horizontal machining.Because of the knife storage capacity,large processing range,high degree of automation,and high processing efficiency,it is favored by all walks of life.This paper using the chain knife horizontal machining center as an example,based on FANUC CNC system,using PMC program control tool change system,will address the following:(1)To learn the development status-both-domestic and overseas of the knife,the basic control principle and structure of FANUC NC system,and PMC programming methods.(2)Introduce the structure and working principles of the knife storage,in deeper analysis of the basic knowledge of the knife storage,and the basic knowledge of the PMC programming design.(3)According to the working principle of the knife design of the hydraulic control system and electrical control system.The interface circuit of I/O electric control mainly includes the main circuit,control circuit,PMC and the knife control principle diagram.(4)In accordance with the cutting tool exchange process of designing the PMC control programming of knife storage.That includes knife selection and cutting tool two part exchange.Selecting knives is the process of selection and carrying of the target cutting tool.Cutting tool exchange is the process of cutting tool and spindle tool exchange followed by the return of the old cutting tool to the knife storage.If the knife storage has any malfunction,it will damage the hardware or cutting tool or even cause a collision.Knife storage alarm procedures have been designed to protect in order to avoid any dangerous accidents.(5)Describe in detail the knife storage control parameters,and setting,and debugging methods,Including how to restore function after manual debugging desynchronized the knife storage,the operation method of the knife number data table,the macro program programming and debugging methods of the exchange cutting tool.Through the installation and debugging process,the target expectation was achieved,and the horizontal machining center can be delivered to the user.