| 摘要 |
PURPOSE: An apparatus for grinding the inside of a mold is provided to uniformly grind an inner surface by controlling a height of a workpiece. CONSTITUTION: An apparatus for grinding the inside of a mold comprises a first plate(100), a support unit(200), a grinding unit(300), a lifting unit(400), a second plate(500), and a reciprocating unit(600). A workpiece is settled on the first plate. The support unit prevents the workpiece from becoming separated by pressing an upper part of the workpiece. The grinding unit comprises a grinding shaft(310) and a first driving motor(320). A grindstone(311) is mounted to one end of the grinding shaft. The grindstone is inserted into the inner surface of the workpiece, and grinds the inner surface. The first driving motor forward and reversely rotates the grinding shaft. The lifting unit is settled on the second plate, and lifts the grinding unit. The reciprocating unit moves the grinding unit. |
