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US 5,681,208 AGranted
Method and apparatus for grinding a crankshaft
OwnerErwin Junkerinventor
Life of this patent
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Abstract
An apparatus for grinding particularly a crankshaft is proposed, the apparatus having a workpiece headstock and a tailstock with, in each case, a bearing, which is disposed in the extension of the crankshaft axis and is intended to accommodate the crankshaft at its axial end points. Moreover, the workpiece headstock and the tailstock each have a spike, in which the crankshaft is mounted and fixed free of axial pressure.
Claims12
A method for grinding a crankshaft, comprising the steps of:
- clamping the crankshaft at respective opposing ends using clamping spikes of the workpiece headstock and tailstock of a grinding machine, where said clamping spike independently clamp said respective opposing ends by use of radial forces such that said crankshaft is substantially free of axial compressive forces;
- and
- grinding all bearings, lifting bearings, flanges, crankpins and end surfaces of the crankshaft using at least two grinding disks while said crankshaft remains clamped as by said clamping spikes.
An apparatus for grinding a crankshaft, the apparatus comprising:
- a workpiece headstock and a tailstock;
- the workpiece headstock and tailstock each having a spike for engaging a centering borehole at each end of the crankshaft;
- and
- said workpiece headstock and tailstock each including clamping means for clamping the crankshaft between the workpiece headstock and tailstock while applying axial tension to said crankshaft.
1 more element
Dependencies are inferred from the claim text.