Cutting by use of rotating axially moving tool – With product handling or receiving means
Patent
1990-08-27
1991-07-23
Bishop, Steven C.
Cutting by use of rotating axially moving tool
With product handling or receiving means
408 56, 408 72B, 408241B, 409137, B23B 4734
Patent
active
050339176
ABSTRACT:
There is provided by this invention a chip extraction apparatus for extracting chip swarf from a workpiece for collection in an external vacuum source. The chip extraction apparatus is comprised of a nosepiece assembly which houses a spring/atmospheric pressure actuated piston for providing telescopic capabilities to a drill bushing. The drill bushing contains an air inlet port for allowing air to be drawn into the interior fo the drill bushing where it will mix with chip swarf. The air application assists chip flow and contributes to efficient vacuum withdrawal of chip swarf from the drill flutes into the vaccum chamber of the nosepiece assembly. The chip swarf is eventually expelled through a vacuum port in the nosepiece assembly to the external vacuum source. Alternative drill bushing configurations are disclosed to provide consistent chip extraction rates for different material requirements and cutting tool types. Additionally, a means for introducing coolant/lubricant or pressurized air to, and removing coolant/lubricant or pressurized air from, the surface of the workpiece is disclosed. The chip extraction apparatus is disclosed in the context of both a portable drill used in conjunction will drill plates and a handheld drill in which the nosepiece assembly is eliminated, but the chip extraction capability is retained.
REFERENCES:
patent: 994430 (1911-06-01), Tunks
patent: 2339324 (1944-01-01), Fischer
patent: 4209069 (1980-06-01), Smith
Luebbert William K.
McGlasson John R.
Bishop Steven C.
Courson Timothy H.
Gosnell Guy R.
Hudson, Jr. Benjamin
McDonnell Douglas Corporation
LandOfFree
Chip extraction apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chip extraction apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chip extraction apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-429457