The Mechanical Design Of Vertical Metal Band Saw Machine And The Study On Its Controlling System

The sawing and cutting is the absolutely necessary working procedure in the mechanical manufacturing. The metal band-sawing machine is mainly used to saw and cut the metal material including round material, profiled bar and lump bar etc. The metal band-sawing machine have the virtue of saving energy, high efficiency and saving material, which is the perfect metal material severing equipment for big, medium and small enterprise. It includes horizontal and upright, the latter have many virtue including the good opening, compact structure and convenient operation etc. The same sawing diameter saw can cut more big dimension and more convenient operation than the horizontal, which adapt to Chinese producing scale and condition. The purpose of the research is to design a upright metal band-sawing machine, which can saw and cut any kind of the metal and nonmetal material below 180 millimeter. The method of the research is based on the Mechanical & Electrical Integration .The disposal of machinery part and the structural design should firstly adapt to the request of central ,secondly is designed the special structure to be satisfied with the process . People often base on the windows operating system ,utilize PC and PLC to control and manage the metal band-sawing machine , and adopt the relevant mechanical structure ,which may not only carry out the purpose of auto-processing and enhance the processing precision of the metal band-sawing machine but also adapt to the CIMS system of enterprise and the auto-processing request of modern enterprise .If people use PC as the pigging and PLC as the hypogyny and soft control interface , the computer may automatically inspect and control the process of sawing and cutting .The sawing strip adopts the universe to control the transducer speed .The sawing frame achieves the adjusting speed purpose through the electronic current adjustment of the output .We obtain the length precision of sawing and cutting from the optical grating measurement feedback .The clamping of the feeding blank and the saw cutting are completed by hydraulic pressure system, so is the feed of sawing frame and the feeding movement of the blank . The feeding guide of the sawing frame is the middle guide with down guide, it is also rolling guide ,which pledged the equability and agility of the movement. The speed of the sawing strip, the feeding speed of the sawing frame and the feeding pressure of the sawing strip are the main parameter of the mechanical dynamics, which decide the saw cutting precision and the service of the sawing strip. Beside ,we analyze and study the strain of the sawing strip .The matching value of the mechanic parameter depends on the saw-cited material .The matching value of the mechanic parameter of different material is optimized through the data which is recorded as history.It's controlling interface designed by VB, which provided the serial port widget : Mscomm.. It is used to provide serial port communication for application .The cutting data is analyzed and managed by Microsoft Access database management system.. The mechanical design and the study of controlling system part of the upright metal band-sawing machine enhance the saw cutting precision ,it can operate without supervision while reduced the labor intensity and raise the working efficiency ,it meet the needs of the total numerical control and network trend as well as possessed highly application and dissemination value.