Mechanical arm for mining

The invention provides a mechanical arm for mining. The mechanical arm comprises a mining machine body, crawler wheels, a control mechanism, a driving mechanism, a mining mechanism and a separating mechanism. The two sets of crawler wheels are symmetrically installed on the left side and the right side of the mining machine body, the control mechanism is installed at the top end of the mining machine body, the driving mechanism is installed on the right side of the mining machine body, the mining mechanism is installed on the driving mechanism, and the separating mechanism is installed at thebottom end of the mining mechanism. Outward turning plates are arranged, when a first grabbing arm drives the outward turning plates to be inserted into an ore bed, certain downward pressure is generated to the first grabbing arm through a third hydraulic telescopic rod, the hardness of the ore bed is different from that of a rock block, the bottom ends of the two outward turning plates are arc-shaped when the two outward