Diameter adjustment oriented balancing system
AssigneeParlec, Inc.
InventorsKlaus Lohner, Thomas Tando
Life of this patent
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Abstract
A diameter adjustment oriented balancing system is disclosed for use with small diameter rotary boring heads. The diameter adjustment oriented balancing system includes a rotary boring head with a radially movable tool carrier. The rotary boring head designed to receive a number of removable counterweights in one or more slots precisely aligned in the axis of radial movement of the tool carrier. The diameter adjustment oriented balancing system further comprises a series of boring bars which are designed to be perfectly balanced such that the combination of the rotary boring head and cutting tool holder is perfectly balanced when the center of the cutting tool holder is located at the center of the rotational axis of the rotary boring head.
Claims20
A rotary boring head comprising:
- a rotating body;
- a radially movable tool carrier within the rotating body designed to accommodate a tool holder;
- a precision spindle connected to the radially movable tool carrier;
- a spindle adapter connected to the rotating body;
- one or more slots located on the rotating body aligned in the axis of radial motion of the tool carrier wherein the one or more slots are designed to accommodate a number of selectively removable counterweights.
A cutting tool holder comprising:
- a nose;
- a shaft which is removably connected to the nose;
- and
- a counterweight on the nose;
- wherein said counterweight is designed to perfectly mass balance the cutting tool holder in all directions.
A diameter adjustment oriented balancing system comprising:
- a rotary boring head with a rotating body which includes a radially movable tool carrier designed to accommodate a tool holder;
- one or more slots located on the rotating body aligned in the axis of radial motion of the tool carrier wherein the one or more slots are designed to accommodate a number of selectively removable counterweights;
- a number of selectively removable counterweights;
- and
- a number of mass balanced tool cutting tool holders;
- wherein said counterweights are selectively removable to accommodate for unbalances resulting from radial adjustment of the tool carrier and cutting tool holder.
A method of balancing a small diameter rotary boring head comprising:
- selecting a mass balanced cutting tool holder;
- placing the cutting tool holder in a radially movable tool carrier in a rotating body which is part of the rotary boring head;
- balancing the rotary boring head;
- radially adjusting the tool carrier to achieve a specific boring diameter;
- and
- selectively adding or removing counterweights to balance the rotary boring head.
Dependencies are inferred from the claim text.