Small plate stone machining device

The utility model relates to the field of stone machining equipment, in particular to a small plate stone machining device which comprises a U-shaped support capable of moving longitudinally and transversely along with a numerical control machine tool and three drill bits capable of being coaxially fixed to the opposite faces of the support, the first drill bit is used for drilling a pre-drilled hole, and the third drill bit is used for expanding a conical hole in the bottom face of a decorative face. The second drill bit is used for finally cutting finished decorative holes. According to the scheme, the problem that an existing stone trepanning machining device can generate large impact force at the moment of stone cutting and penetrating, and edge breakage of stone is caused is solved. 本申请涉及石材加工设备领域，具体公开了小板块石材加工装置，其包括可随数控机床纵横移动的U型支架，支架相对面可同轴固定的三种钻头，其中第一钻头用于开出预开孔，第三钻头用于对装饰面底面扩锥形孔，第二钻头用于最终切割出成品装饰孔。本方案解决了现有石材开孔加工装置在石材切割穿透瞬时会产生较大冲击力，造成石材崩边的问题。