| 摘要 |
An operating head for automatic machine tools, which includes a fork fitted on a support having various degrees of freedom; a mechanism for the numerical control of rotation of the fork around its axis; a support for a chuck, being fitted up on said fork and rotatably relative to it around an axis which is orthogonal to the former, under a numerical control; a shaft coaxial with the axis of rotation of the support for the chuck and connected, by the use of bevel gears, at one end to devices for the transmission of motion and, at its other end, to the shaft of the chuck wherein devices are provided for allowing change of the angular position of both the fork and support for the chuck, keeping the tool in contact with the piece to be machined. |
