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US 4,976,572 AGranted
Method and automatic machine for machining coiled stock
OwnerHarold Habeggerinventor
Life of this patent
Estimating the term…
Abstract
The automatic machine works on coiled stock to produce a series of workpieces. It comprises a spindle arranged to turn around its axis, but only somewhat more than through an angle of 360.degree., between two fixed angular limits. The tools consist of shaped milling cutters or grinding wheels which machine surfaces of revolutions on the workpieces.
Claims3
A method of machining workpieces out of a thread-like stock which has been wound up into a coil from one end to provide a free end portion at the other end, said method comprising the steps of:
- unwinding from said coil said free end portion and an adjacent length of said coiled stock corresponding to a distance at which a machine for machining said workpieces is located apart from said coil and any device associated therewith for straightening said coiled stock;
- introducing said free end portion of said coil into said machine, said machine having at least one rotating and shaped milling cutter or grinding wheel;
- moving said milling cutter or grinding wheel in a direction substantially perpendicular to the axis of said free end portion so that said milling cutter or grinding wheel engages said free end portion;
- and,
- causing said free end portion to turn about its axis between two limits set apart through an angle of at least 360.degree. while said milling cutter or grinding wheel is engaged with said free end portion and said free end portion is integral with said coiled stock;
- said adjacent length of unwound stock being sufficient to prevent said turning from damaging said stock.
3 more elements
Dependencies are inferred from the claim text.