Clamp special for waist and nose machining

The utility model discloses a clamp special for waist and nose machining. The clamp comprises a clamp support, a clamping piece and an adjustable bolt, wherein the clamp support is arranged on a worktable of a sewing machine; the clamping piece is arranged in the middle of the side face of the clamp support and consists of a right clamping piece and a left clamping piece which are symmetrically arranged so as to form a clamping groove; the clamping groove is aligned to a sewing presser foot of a machine head of the sewing machine; an elongated slot is formed on the clamping piece; and according to the adjustable bolt arranged in the elongated slot, the clamping piece moves along the elongated slot so as to change the size of the clamping groove. According to the clamp, the lining process is saved, the manual labor is saved, and the energy waste is reduced; and moreover, the waist nose and the lining can be simultaneously machined due to the clamp, the production efficiency is greatly improved.