3-PHASE CRANKSHAFT MACHINING

The present invention relates to a method and an apparatus for the finish-machining of the bearing diameters, particularly the main bearing diameters and of the adjoining cheek side surfaces on crankshafts and similar workpieces in a single chucking. In order that this machining can be carried out r...

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Bibliographic Details
Main Authors SCHROD; HANS, VOSS; WOLF-DIETRICH
Format Patent
LanguageEnglish
Published 07.01.1992
Subjects
BORING
BROACHING
COMBINED OPERATIONS
FILING
LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MILLING
OTHER WORKING OF METAL
PERFORMING OPERATIONS
PLANING
SAWING
SCRAPING
SHEARING
SLOTTING
TRANSPORTING
TURNING
UNIVERSAL MACHINE TOOLS
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Summary:The present invention relates to a method and an apparatus for the finish-machining of the bearing diameters, particularly the main bearing diameters and of the adjoining cheek side surfaces on crankshafts and similar workpieces in a single chucking. In order that this machining can be carried out rapidly and nevertheless with a high quality of production, the following method steps are carried out, one after the other: milling of the cheek side surfaces to nominal size up to the bearing diameter; turning of the bearing diameter down to a small oversize; turning-broaching of the bearing diameters to nominal size in order to obtain a good quality surface, and possibly turning/turning-broaching of recesses, clearance cuts and undercuts in the region of the bearings.
Bibliography:Application Number: US19900581513