A frock for arc welding robot

The utility model discloses a frock for arc welding robot, including base, automatic hold -down mechanism, fixed cover and manual hold -down mechanism, the base includes U -shaped frame and mounting panel, gu the mounting panel install in the right part in the U -shaped space of U -shaped frame, automatic hold -down mechanism includes mount, motor, compresses tightly the arm, band pulley no. 1, band pulley no. 2 and belt, mount fixed mounting in the rear portion of U -shaped frame right -hand member, motor fixed mounting in the lower part of mount front end, the right -hand member transmission that compresses tightly the arm install in the upper portion of mount front end, band pulley no. 1 and band pulley no. 2 respectively with the motor with compress tightly the arm transmission and connect, band pulley no. 1 all is located with band pulley no. 2 the rear end face of mount, band pulley no. 1 passes through with band pulley no. 2 belt transmission connects, the problem of current anchor clamps can not fast