Apparatus for preventing invasion of cutting liquid in...

Details Apparatus for preventing invasion of cutting liquid in... Apparatus for preventing invasion of cutting liquid in...

B - Operations, Transporting

23

Q

29/2

B23Q 11/02 (2006.01) B23Q 1/00 (2006.01) B23Q 11/00 (2006.01) B23Q 11/08 (2006.01)

Patent

CA 1257083

ABSTRACT OF THE DISCLOSURE This invention provides in a replaceable head type machine tool which comprises a driving unit which is movable to advance and retreat in relation to a workpiece set table, such that upon an advance movement of the driving unit a working head selected to be at a front position of the driving unit can be coupled therewith and further advanced towards the set table, and a workpiece on the set table can be worked on by a tool at the forward end of a tool spindle provided on the working head, an apparatus for preventing the ingress of cutting liquid comprising an accumulator tank for pressure fluid mounted on the working head and connected by piping to a spindle housing on the working head so that pressure fluid discharged from the tank is jetted forwards through the interior of the housing from an in- sertion gap around the tool spindle at a forward end of the spindle housing, a pressure fluid supply opening in the driving unit connected to a pressure fluid source, and a connecting opening in the working head arranged to be connected to the supply opening at the time of the coupling thereof with the driving unit so that pressure fluid discharged from the con- necting opening can flow into the accumulator tank.

506914

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