Self-centering jaw for clamping copper alloy terminal protection wire clamp

The utility model relates to a self-centering jaw for clamping a copper alloy terminal protection wire clamp, and the jaw comprises first jaws which are symmetrically disposed at two sides of a wire clamp body; the second jaws are symmetrically arranged on the other two sides of the wire clamp body; the inner wall of the first jaw is a plane attached to the side wall of the wire clamp body; the inner wall of the second jaw is a first inclined wall and a second inclined wall which are attached to the side wall of the wire clamp body. The first inclined wall and the second inclined wall are symmetrically arranged; vertical first groove bodies for accommodating ridge strips on the side walls of the wire clamp body are formed in the first inclined wall and the second inclined wall; the inner wall of the second jaw is provided with the first inclined plane, the second inclined plane and the first groove body, in the clamping process, the side wall of the wire clamp body can move along the first inclined plane or t