Groove pressing device for battery case

The utility model discloses a groove pressing device for a battery case, comprising a frame, wherein a rotary seat is movably arranged on one side of the frame; electromagnet is arranged within the rotary seat; a propping device moving straight in the direction of a connection line with the rotary seat is arranged on the other side of the frame; a rotary positioning block is movably arranged at the top of the propping device; positioning grooves matched with batteries are formed on the end faces of the rotary positioning block and on the end faces of the rotary seat in opposition to the rotary positioning block, respectively; and a groove pressing cutter moving in the vertical direction is arranged above the rotary seat on the frame. In addition, a feed bin is arranged on the frame; a feed channel is arranged at the bottom of the feed bin; and a pushing block is movably arranged under the feed channel on the frame. The propping device comprises a cylinder arranged on the frame and a holder arranged at the top