US 4,798,505 A · Process and apparatus for removal of dust and chip material at the machining station of a machine tool

Abstract

On the tool spindle of a machine tool, a hollow ring is mounted on the headstock or on the sleeve flange thereof and is provided on its underside with an annular clearance forming an endless ring nozzle. A pressurized fluid is introduced into the channel of the hollow ring and passes out of the annular clearance in the form of a closed fluid curtain, so that a closed space surrounding the machining station is formed. So as to obtain a permanent seal with the fluid curtain, an annular element comprising a deflecting ring, a filter ring and a straightening ring is built into the annular channel and as a result the latter is subdivided into an upper and a lower partial ring channel. The suspended dust formed during the machining of a workpiece is held back by the fluid curtain, but the machining point is still visible and unimpeded access is possible.

Claims10

Dependent claims

Apparatus for removing dust and chips from the working point of a machine tool having a spindle, said apparatus comprising:

first and second hollow annular channels concentrically disposed in adjacent relationship about the spindle, said channels sharing a common wall portion, said first and second channels respectively constitute first and second hollow horizontal rings, the first ring being an outer ring and having an outer wall, the second ring being an inner ring and having an inner wall, said common wall portion defining an inner wall for the first ring and an outer wall for the second ring, each ring having a corresponding separate annual clearance defining a corresponding endless nozzle whereby there are two nozzles, and
means for introducing a pressurized fluid into both channels, said fluid being discharged from each nozzle as a separate closed fluid curtain which is substantially cylindrical with entrained dust and chips whereby two concentric spaced apart curtains are discharged.

Dependencies are inferred from the claim text.

Process and apparatus for removal of dust and chip material at the machining station of a machine tool

Life of this patent

Process and apparatus for removal of dust and chip material at the machining station of a machine tool

Life of this patent

Abstract

Claims10