Visual wrench for fixing round head bolt

The invention provides a visual wrench for fixing a round head bolt, comprising: a horizontal telescopic pipe, one end of which is connected with a visual wrench main body and is used for changing the length of the visual wrench in the horizontal direction; one end of the vertical telescopic pipe is connected with the other end of the horizontal telescopic pipe, and the vertical telescopic pipe is used for changing the length of the visual wrench in the vertical direction; the camera is mounted at the other end of the vertical telescopic tube and is used for acquiring an image in front of the rigid magnetic head; the rigid magnetic head and the camera are symmetrically mounted at the other end of the vertical telescopic pipe, and the rigid magnetic head is used for pressing the bolt head of the round head bolt; the fastening assembly is independently arranged and used for pressing and fixing the round head bolt after the round head bolt is positioned; the bearing plate is arranged on the upper portion of the