The utility model provides an anchor clamps for processing four arris cone type uncoiler drum, includes location clamp, main aspects connection pad, main aspects positioning disk, tip positioning disk and external diameter clamp that mutual independence and cooperation were used. During the use, follow introversive outer suit in proper order on four arris cone type uncoiler drum main shafts with main aspects positioning disk, location clamp and main aspects connection pad to become whole through bolted connection, with the minor diameter end of tip positioning disk suit at four arris cone type uncoiler drum main shafts to link firmly with the tip of sector plate among the four arris cone type uncoiler drum, external diameter clamp suit is at four arris cone type uncoiler drum 's outer peripheral surface to apply the packing force to the surface of four group's sector plates respectively through the bolt. The utility model discloses fully consider the small removal in the four arris cone type uncoiler drum processing, utilize these anchor clamps fix the back, make four arris cone type uncoiler drum all the time for the rigid body in the course of working, do not have each to small removal, messenger processingquality is reliable and stable.