| 摘要 |
To enable forming a negative angle with deep bending and forming a high-quality panel, a negative-angle press-working die (1) includes an elevatable pad (3) fixed to an upper die (2), a slide cam (4) supported slidable laterally on the upper die (2) or a lower die (14) and having a bending blade (4c), a rotary cam (5) rotatable about a rotational center (5c) having a bending part (5a) which forms a negative-angle portion on a workpiece (12) and a cam surface (5b) abutting on the slide cam (4), an elevatable slide body (7) disposed under the pad (3) rotatably together with the rotary cam (5) and having a hold part (7a) provided at an upper portion on a bending part side of the rotary cam (5) and constituting a part of a male die for workpiece forming, a drive unit (6) that rotates the rotary cam (5) to a workpiece working position, and a slide drive unit (8) that slides the slide body (7) in an up and down direction.
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