Combination drilling and skiving tool
Patent
·
OSTI ID:7273176
This patent describes a combination drilling and skiving tool including a longitudinally extending hollow skiving sleeve slidably and concentrically mounted on a right-handed twist drill. Dogs or pawls provided on the internal periphery of the skiving sleeve engage with the helical grooves of the drill. During a clockwise rotation of the tool, the drill moves downwardly and the sleeve translates upwardly, so that the drill performs a drilling operation on a workpiece. On the other hand, the drill moves upwardly and the sleeve translates downwardly, when the tool is rotated in a counter-clockwise direction, and the sleeve performs a skiving operation. The drilling and skiving operations are separate, independent and exclusive of each other.
- Assignee:
- US Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4869625
- Application Number:
- PPN: US 7251485A
- OSTI ID:
- 7273176
- Country of Publication:
- United States
- Language:
- English
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