PRESS MACHINE AND PRESSING METHOD

摘要

A press machine includes a lower die having a step portion for forming a bent portion on a side surface, a pad portion supported by a spring and disposed adjacent to the lower die in the horizontal direction, being movable upward and downward, an upper die disposed opposing the pad portion in the vertical direction, and a regulation portion. When the upper die moves downward and presses a steel plate between the upper die and the pad portion to form a bent portion in an edge portion of the steel plate, the regulation portion moves together with the upper die and regulates the motion of the edge portion of the steel plate protruding from the lower die in the horizontal direction, thereby preventing a wrinkle from forming in the edge portion of the steel plate.

主权项

1. A press machine comprising:
a lower die having a step portion on a side surface thereof; a pad portion supported by a spring and disposed adjacent to the lower die in a horizontal direction, the pad portion being movable upward and downward in a vertical direction; an upper die disposed opposing the pad portion in the vertical direction; and a regulation portion movable together with the upper die upward and downward in the vertical direction, wherein the upper die and the pad portion are configured to hold a steel plate therebetween, the lower die is configured to form a bent portion at an edge portion of the steel plate held between the upper die and the pad portion, when the upper die and the regulation portion move downward, and the regulation portion is configured to regulate a movement of the edge portion of the steel plate protruding from the lower die in the horizontal direction, when the bent portion is formed.