| 摘要 |
The invention relates to apparatus for bending a flange (5) against a workpiece (4). A bending tool (6) is mounted on a tool holder (7) connected to a stand (1) by a linkage mechanism (8-13). The stand carries the workpiece (4) and a drive arrangement (15-24) for the tool holder (7). The linkage mechanism includes parallel carrier links (8, 11), one end of which is pivotally mounted on the tool holder (7). The other end of the first carrier link (8) is mounted on a fixed pin (10) which carries one end of a connecting link (14), the other end of which is connected to the second carrier link (11). A drive element (15, 17) is connected to the second carrier link (11) for moving the tool holder (7). A camming device (25) operates a cam follower (27) on the first carrier link (8) projecting away from the tool holder (7). |
