| 摘要 |
A roller hemming head (10) comprises an upper head portion (20) having a flange (22) for connection to the wrist (14) of a robot (R) or other supporting movable equipment. The head (10) further comprises a lower head portion (24) carrying one or more hemming rollers (26, 27). The hemming rollers are freely rotatably mounted on a roller-carrying unit (40) which is connected to the lower portion (24) of the head with the interposition of a quick-connection device (50) which rigidly and removably connects the roller-carrying unit (40) to the head lower portion (24). The quick-connection device (50) comprises spring means (54) tending to hold the device in a connection condition, and an actuating member (52) adapted to be moved against the action of the spring means (54), for releasing the connection. The actuating member (52) is adapted to be operated by an engagement member (60) provided at a fixed station (S) adjacent to the robot (R) or adjacent to a movable equipment supporting the head. The engagement member is adapted to be received within a cooperating seat of the head. Therefore, the quick-connection device of the hemming head enables quick replacement of the entire structure of the roller-carrying unit (40) and does not require the provision on the robot (R) or the movable equipment supporting the head of cables and/or supply hoses for controlling the quick-connection device (50). |
