Multi-tooled depression milling machine

摘要

The disclosure explains machines to provide for forming depression using multiple cutting tools. The cutting tools may operate in a simultaneous cycling mode, where the cutting tools form depressions at the same time, or in an alternating cycling mode where the cutting tools form depressions at unique periods during operation. The individual cutting tools may make plunge cuts, near plunge cuts, or mill through cuts. Regulation of the cutting cycles of each cutting tool may be controlled using a direct transfer, as exampled by cam wheels, or using an indirect transfer, as exampled by electronic measurement of travel of the milling machine. A determination of the proper spacing between adjacent cutting tools is dependant upon the type of cycling mode, the total cutting tool count and a measurement of the separation spacing between adjacent depressions. Blocking selectively prevents implementation of select cutting cycles to allow installation of series either having true continuous installation or having skip patterns incorporated therein.