Convenient spare part frock clamp who changes

The utility model discloses a convenient spare part frock clamp who changes, which comprises a housin, the piece is kept out in casing top welding, keeps out the piece for the cavity structure, and keeps out a piece side surface and offered the through -hole, and it has the pole to keep out an inner wall bottom welding, and first guide block has been cup jointed in the outer activity of pole, andfirst guide block one side rotation axis is connected with the pole, and the one end swing joint of pole has the shielding plate, and the shielding plate part stretch into keep out the piece in, the welding of casing top surface has the fixed block, and the welding of fixed block one side has the spring, and weld spring one side has the movable block, the movable block bottom is seted up porosely,the welding of shells inner wall bottom has the pole, and the second guide block has been cup jointed in the pole outside, and second guide block one side is connected with the pole through the rotation axis, and the fastenin