Screw driving protection device for mobile phone assembly

The utility model discloses a screw driving protection device for mobile phone assembly. The device comprises a base and a positioning seat, the positioning seat is connected to the middle position ofthe upper end of the base through a bolt; the side edge of the upper end of the base is in threaded connection with a guide column located on the outer side of the positioning base. A sliding block is slidably connected to the middle of the guide column. According to the utility model, the positioning seat is used for placing a mobile phone part needing to be screwed and assembled; a guide columnwith a sliding block is installed on the side edge of the upper end of the base. Cover plate for cooperative connection, the cover plate is used for shielding other parts of the mobile phone; other parts are prevented from being damaged during screwing; the air cylinder drives the sliding block to move downwards along the guide column; the sliding block is pressed on a mobile phone part needing screw driving operation, me