Invention Grant
- Patent Title: Device for limiting the advance during a drilling operation
- Patent Title (中): 用于在钻孔操作期间限制进给的装置
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Application No.: US12085610Application Date: 2006-12-21
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Publication No.: US08684639B2Publication Date: 2014-04-01
- Inventor: Mathias Kruse , Rolf Clausen , Thomas Goohsen , Wolfgang Hintze
- Applicant: Mathias Kruse , Rolf Clausen , Thomas Goohsen , Wolfgang Hintze
- Applicant Address: DE Hamburg
- Assignee: Airbus Deutschland GmbH
- Current Assignee: Airbus Deutschland GmbH
- Current Assignee Address: DE Hamburg
- Agency: Jenkins, Wilson, Taylor & Hunt. P.A.
- Priority: DE102005061190 20051221
- International Application: PCT/EP2006/070070 WO 20061221
- International Announcement: WO2007/071757 WO 20070628
- Main IPC: B23B47/34
- IPC: B23B47/34

Abstract:
In a device for limiting the advance during a drilling operation, which can be used in conjunction with a hand drill or with an automatic manufacturing machine, the device comprising a housing with a stop cage and a spindle mounted rotatably and axially displaceably in the housing, and a stop which is adjustable in the axial direction being arranged for limiting the advance, the invention consists in that the stop cage (2a) comprises a pin fixed to the housing for breaking the chips, with a housing-side end and a free end, in such a way that it extends approximately parallel and directly adjacent to the workpiece surface and approximately radially from the outside towards the drilling tool in such a way that its free end almost touches the countersink. Damage to the surface of workpieces is prevented by the invention, so that corresponding refinishing is avoided. Moreover, the removal of the coiled chips from the drilling tool previously necessary after each drilling cycle is dispensed with.
Public/Granted literature
- US20090304467A1 Device for Limiting the Advance During a Drilling Operation Public/Granted day:2009-12-10
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