| 摘要 |
A first hemming mold unit ( 20 ) and a second hemming mold unit ( 30 ), are installed in a single pressing machine. The first hemming mold unit ( 20 ) performs partial bending of an edge ( 95 ) of a workpiece ( 93; 96 ). The workpiece ( 93; 96 ), having undergone the partial bending, is transferred to the second hemming mold unit ( 30 ), the second hemming mold unit ( 30 ) performs remaining necessary bending of the edge of the workpiece ( 93; 96 ). Here, predetermined bending of the edge ( 95 ) of the workpiece ( 93; 96 ) can be completed within the single pressing machine only by downward movement of upper molds ( 24, 34 ) of the first and second hemming mold units ( 20, 30 ), without having to use a cam and cam driver. |
