Anchor clamps of hollow shaft welding usefulness

The utility model relates to an anchor clamps of hollow shaft welding usefulness, the both ends of I shape support frame are equipped with the supporting disk respectively, the equipartition has three forked tail guide slot on the terminal surface of left and right sides supporting disk, all inlay on each forked tail guide slot to be equipped with and to follow the gliding quadrant block of guide slot, three fan -shaped slider form of every side have the hole of cone angle, join in marriage in the hole and be equipped with the associated circular cone and carve the piece, first lead screw passes the screw thread that the right side circular cone carved on a last through -hole and the I shape support frame and joins in marriage soon, and the left end of first lead screw is carved the piece with the left side circular cone and is linked to each other, the second lead screw passes the right side circular cone and carves the piece, and an axial positioning is carved on the second lead screw to the right side circular cone, the second lead screw is joined in marriage with the screw thread on the I shape support frame soon, the rotary motion of lead screw drives the circular cone and carves an axial linear motion, the axial linear motion that the piece was carved to the circular cone makes the quadrant block follow the radial motion on the guide slot, outer disc of quadrant block and the internal face generate pressure of treating the welding piece, realize pressing from both sides tightly, be applicable to the clamping location of different hollow shafts.