Positioning reference device for mounting shuttle guide rails of computer flat knitting machine

The utility model discloses a positioning reference device for mounting shuttle guide rails of a computer flat knitting machine and belongs to a fixture clamp for assembling the computer flat knitting machine. The computer flat knitting machine comprises a needle bed base. The positioning reference device for mounting the shuttle guide rail comprises a needle bed base matching center frame and a shuttle guide rail parallel distance limiting arm, wherein the left side of the needle bed base matching center frame extends to form a left needle bed mounting surface matching arm, and the right side of the needle bed base matching center frame extends to form a right needle bed mounting surface matching arm; the surface of one side, which faces a left needle bed mounting surface, of the left needle bed mounting surface matching arm is matched with the left needle bed mounting surface, and the surface of one side, which faces a right needle bed mounting surface, of the right needle bed mounting surface matching arm is matched with the right needle bed mounting surface; the upper end of the shuttle guide rail parallel distance limiting arm forms a shuttle guide rail centering gauge, and the lower end of the shuttle guide rail parallel distance limiting arm is fixed in the center of the needle bed base matching center frame. According to the positioning reference device, a parallel distance between adjacent shuttle guide rails is guaranteed, so that the mounting precision of the shuttle guide rails is guaranteed, and steady motion of shuttles on the shuttle guide rails is also guaranteed.