Research Of Permanent Magnetic Mill Working Principle And Application

Drum-type permanent magnetic mill is able to process the surface ofcomplex small part. It has broken through the bottleneck of the traditional machiningmethod, which is surface polishing equipment that can achieve efficient, accurate,mechanized machining to complex small parts. With the development ofmanufacturing industry, the quality of surface of complex small parts has been moreand more important in many fields. It is difficult for the traditional machiningmethods to complete the surface polishing of complex small parts. But drum-typepermanent magnetic mill can solve the "incurable diseases". Studying the principle ofdrum-type permanent magnetic mill, and reasonably to improve the polishingefficiency is very necessary.When drum-type permanent magnetic mill is working, its internal permanentmagnetic field of magnet combined with the rotation of the rotating device, whichform rotational magnetic field can make a lot of small tools-magnetic needle to dorevolution and rotation, it can make needle collision with the work pieces so that theycan achieve the goal of improve surface quality of parts. In addition to the advantagesof improving the quality of the surface of small complex parts, drum-type permanentmagnetic mill has easy control, easy operation, small noise, no pollution and so on. Atpresent, the study of drum-type permanent magnetic mill is relatively little, thereforethis thesis mainly has the following a research content: The research about the theoryof permanent magnetic field; The research of working principle and polishingmechanism of drum-type permanent magnetic mill, it is analyzes the magnetic needlemovement during equipment operation and finds that the main factors influencing thepolishing efficiency. Research on the influence of poles distribution to magneticneedle movement, and design the best way of magnetic poles distribution; Designingrational mechanical structure and producing the required parts before assemble themso that realize the best way of magnetic poles distribution; By experiments verifyingthe modified equipment can process longer work piece and larger work piece whichoriginal equipment can not do; Use modified drum-type permanent magnetic mill todo a lot of experimental so that researching the influence of motor frequency, dosageof needle, dosage of mixture on the polishing efficiency. The thesis has an importantguiding effect to the application and upgrade of drum-type permanent magnetic mill.