Shear nail welding and clamping device

The utility model discloses a shear nail welding and clamping device, and belongs to the field of clamping devices, the shear nail welding and clamping device comprises two supporting frames, connecting columns are fixed to the opposite inner side faces of the supporting frames, the connecting columns are sleeved with first sleeves, the first sleeves are rotatably connected with the connecting columns, moving rods are inserted into the first sleeves, and the moving rods are in threaded connection with the first sleeves; a clamping plate is fixed to the side, away from the connecting column, of the moving rod, and a limiting piece used for limiting rotation of the moving rod along with the first sleeve is arranged on the connecting column. The device has the effect that the situation that arms of workers are burnt due to the fact that the temperature of a welding head of an electric welding machine is high when shear nails are welded to galvanized steel sheets is reduced. 本申请公开了一种剪力钉焊接夹持装置，属于夹持装置的领域，其包括两个支撑架，支