Automobile rockshaft laser marking machine with identification device

The invention provides an automobile rockshaft laser marking machine with an identification device. A laser generator is arranged on the upper part of a frame. An automobile rockshaft fixture is arranged below a laser head on the frame, and provided with V-shaped groove bolsters that are located on left and right sides of a platform surface of the frame. A positioning pin is arranged at the bottom of each V-shaped groove in the left bolster. A pneumatic hold-down device is arranged at a right end of the frame, and provided with a cylinder. A pressure head sleeves a piston rod of the cylinder, and a helical compression spring is arranged between the pressure head and an upper end of the piston rod. An air hole is formed in the bottom of each V-shaped groove in the right bolster; an orifice, at one end of the bottom of the corresponding V-shaped groove, of each air hole is provided with an O-shaped rubber sealing ring; and an air inlet is formed at the other ends of the air holes. The air hole is formed in the bottom of each V-shaped groove in the right bolster of the automobile rockshaft fixture of the automobile rockshaft laser marking machine; the orifice, at one end of the bottom of the corresponding V-shaped groove, of each air hole is provided with the O-shaped rubber sealing ring, and the air inlet is formed at the other ends of the air holes; further, the bottoms of the V-shaped grooves of such a structure are combined with a compressed air system to form the identification device for automobile rockshafts. In use, automobile rockshafts having a difference in oil outlet can be identified, thereby preventing mistaken laser marking.