Patent ID: 9511420
Filing Date: 2016-12-06
CPC Classification: B23B,Y10T

Claim Text:
1. A rotary head tool is a self-propelled rotary tool SPRT operable for machining that is round cutting involving hard turning, said rotary head tool characterized in that it comprises: (a) a tool fixture having a hole therein; (b) a tool support incorporating an upper portion and a lower portion, said tool support being insertable within the hole in the tool fixture so that the upper portion of the tool support extends above the tool fixture and the lower portion of the tool support extends below the tool fixture when the tool support is inserted within the hole in the tool fixture; (c) a bearing having a hole therein of a size to receive the lower portion of the tool support that extends below the tool fixture, said bearing being held in place encompassing the lower portion of the tool support by one or more washers and a threaded nut engageable with threading formed in the lower portion of the tool support; (d) a first bearing having a hole therein of a size to encompass the tool support, said first bearing being insertable within the hole in the tool fixture while encompassing the tool support; (e) a second bearing having a hole therein of a size to encompass the tool support, said second bearing having a wider diameter than the hole in the tool fixture, and said second bearing being positionable between the first bearing and the upper portion of the tool support; and (f) an insert incorporating a cutting edge being insertable within an indentation formed in a top edge of the upper portion of the tool support, said indentation having a threaded section cut therein to extend below the insert when said insert is inserted within the indentation, said insert having a hole with a threaded inner wall cut therein and being attached to the tool support by a threaded screw fitted within the hole in the insert and connected to the threaded section of the indentation; and wherein the insert fitted within the indentation is positioned at an angle in relation to the tool fixture, said angle being pre-determined to achieve optimum cutting performance.