| 摘要 |
The invention relates to a device, rotating and with variable diameter, for the inner machining of pieces. In one embodiment, the device includes a fixing body, a rotating support generally in the shape of a cup suited to house a tool carrier spindle and set it in rotation, and a mechanism for the radial translation of the tool carrier spindle in the cup-shaped rotating support. The tool carrier spindle is housed in the cup-shaped support and translates in a radial direction with respect to the axis of the cup-shaped support. The cup-shaped rotating support rotates around its own axis and is preferably set in rotation by a stepping or variable-speed electric motor controlled via PLC.
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