| 摘要 |
PURPOSE: A grinder using a magnetic field is provided to improve the efficiency of grinding by preventing abrasives from being stuck to workpiece even when the workpiece are magnetic bodies. CONSTITUTION: Permanent magnets(11,12) are installed at a magnetic field generating unit(10), and generate a north pole magnetic field and a south pole magnetic field, respectively. A magnetic field position changing unit(20) rotates the magnetic field generating unit, and repeatedly changes the position of the north pole magnetic field and south pole magnetic field. A grinding container(50) contains abrasives(40) and workpiece(30). The magnetic field generated by the magnetic field generating unit is applied to the inside of the grinding container. A container placing unit is located at the upper part of the magnetic field position changing unit.
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