International Classification:
F16H 3508
Abstract:
The use of boring heads, normally used to machine accurate sized holes, as adjustable throw eccentric shafts. Boring head shanks are removed and replaced with bearing supported shafts, or otherwise attached to a rotatable energy source. Bearings are mounted to the boring head slides either directly, or by means of an adapter, or bearing journal. By selecting a suitable boring head, the adjustment may be made when the machine is at rest, or when running, manually or automatically. By fitting stepper motors or servo motors to boring heads which are manually adjustable while running, the adjustment may be controlled by a numerical control or computer control. When modified accordingly, boring heads are suitable adjustable eccentrics or crank shafts, and can be incorporated into various machine designs, providing an economical, readily available, and very accurate machine member.