| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal plate bending processing apparatus in which a degree of freedom in curvature of possible bending processing is high.SOLUTION: A bending processing apparatus 10 includes a metal mold 18 and two under rolls 12, 14, and performs bending processing by pressing the metal mold 18 to a metal plate 16 supported by the two under rolls 12, 14. The metal mold 18 presses an arc-shaped part 28 having an arc plane 28a with a rotating shaft as the center to the metal plate 16, and thereby the metal plate 16 can be bent as arc-shaped. And, as the metal mold 18 includes a reinforcing member 30 extending in a radius direction to the opposite side of the arc-shaped part 28 against the rotating shaft, stiffness of the metal mold 18 can be secured by the reinforcing member 30. Namely, the radius of the arc plane 28a in the arc-shaped part 28 can be made small and a bending of a small curvature can be formed to the metal plate 16. |
