Automatic stacking device for test pieces

The utility model discloses an automatic test piece stacking device which comprises a frame body and a driving mechanism, and a first belt wheel and a second belt wheel are rotationally arranged at the top of the frame body; a first conveying belt is wound between the first belt wheel and the second belt wheel; a guide rail and a position sensor are arranged close to the side edge of the first conveyor belt; a first reciprocating driving mechanism is fixed on the guide rail; the first reciprocating driving mechanism comprises a first driving end, the first driving end is arranged downwards, asliding block is connected to the first driving end, the guide rail is sleeved with the sliding block in a sliding mode, a second reciprocating driving mechanism is fixed to the lower side of the sliding block, the second reciprocating driving mechanism comprises a second driving end, and a tile support is detachably installed at the second driving end; the driving mechanism is in transmission fitwith the first belt wheel