Faceting device for engraving machine

The utility model discloses a faceting device for an engraving machine. The faceting device comprises an angle rotation control device, an angle rotation speed reducer, a coupling, a faceting shaft rotating tool bit device, a faceting shaft control device, a faceting tool and a faceting shaft. Wherein the angle rotation control device comprises an angle rotating shaft which is used for simultaneously driving the faceting shaft control device and the faceting shaft rotating tool bit device to perform 360-degree arbitrary angle conversion and positioning, and the angle rotating shaft is controlled to rotate through a driving motor; the faceting shaft rotating tool bit device is connected with the faceting tool to control the faceting tool to rotate, and the faceting shaft control device is connected with the faceting shaft to control the faceting shaft to rotate; the angle rotation control device is driven by a speed reducer and a coupling, and the faceting shaft rotating tool bit device is driven and converted