Arc copper forming device

The invention discloses an arc copper forming device. The arc copper forming device comprises an upper mold and a lower mold; the upper mold is a groove-shaped structure with an arched cross section; the lower mold includes two sliding modules with L-shaped cross sections, a fixed module and a base; the fixed module is fixed on the base; the sliding modules are respectively positioned on two sides of the fixed module; the upper mold is reversely buckled at the top ends of the sliding modules; an elastic device is arranged between the base and the sliding modules; one end of the elastic device is fixedly connected with the upper surface of the base, and the other end of the elastic device is fixedly connected with the bottom surfaces of the sliding modules; and the cross section of the fixed module is an isosceles arc with narrow top and wide bottom. The arc copper forming device is simple in structure and uniform in pressure on liquid copper; produced arc copper is uniform in quality; and the arc copper formi