The invention discloses a
sapphire crystal etching and
polishing compound
machine tool. The
machine tool comprises a stand, a vertical rotating arm, a main shaft
system, a motor, a carrying disc and a negative pressure mechanism; a loading / unloading
station, a rough
polishing station, an
etching station and a finish
polishing station are peripherally arranged on the top surface of the stand at intervals; a
cantilever is fixed at the upper part of the vertical rotating arm; the main shaft
system can move up and down corresponding to the
cantilever; the motor and the carrying disc are both connected to the main shaft
system, and the motor is in transmission connection with the carrying disc to drive the carrying disc to rotate; a sucking hole is formed in the carrying disc; the negative pressure mechanism is communicated with the sucking hole; the vertical rotating arm is arranged on the axis in the
peripheral direction, and can rotate around the axis; and the vertical rotating arm rotates to respectively shift the carrying disc to the loading / unloading station, the rough polishing station, the
etching station and the finish polishing station for corresponding
processing. The
machine tool has the following advantages: the
machine tool can perform the loading, etching, polishing and unloading compound
processing for
sapphire crystals, can quickly obtain ultrasmooth
crystal surfaces without damage, and greatly improves the
processing efficiency of the
sapphire crystals.