THROUGH COOLANT ADAPTOR FOR USE ON HOLLOW SPINDLE MACHINE TOOLS

摘要

The present invention relates to an adaptor 10, 20 and a connection device 30 for fixing a tool 2 to an arbor 100 of a hollow spindle machine. The adaptor 10 comprises an inlet opening 13 at a first part 11 of the adaptor 10, the inlet opening 13 being connectable to the central passage way 101 of the arbor 100; at least one outlet opening 14 at a second part 12 of the adaptor 10, the second part 12 radially protruding over the first part 11 and being adapted for holding the tool (2); a connection means 15 for fixing the adaptor 10 to the arbor 100; and a fluid distribution passage way 16 connecting the inlet opening 13 with the at least one outlet opening 14 so that the coolant is supplied to the tool 2 via the at least one outlet opening 14 of the adaptor 10.