Rotary cutting tool with internal balancing feature
AssigneeKennametal Inc.
InventorsRuy Frota de Souza Filho, Sebastian Schleicher
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool has a central, longitudinal axis. One or more internal balancing features are disposed within a cavity of the rotary cutting tool. Each internal balancing feature includes a balancing mass suspended within the cavity by a spring-like element, and an adjusting screw for effecting radial movement of the balancing mass. Each internal balancing feature can be integrally-formed with the rotary cutting tool using a 3-D printing technique. The rotary cutting tool can be any rotary cutting tool, such as a milling cutter, a boring bar, and the like. The internal balancing features are arranged at predetermined locations within the rotary cutting tool to enable static and/or dynamic balancing of the rotary cutting tool.
Claims23
A rotary cutting tool having a central, longitudinal axis, comprising:
- a first toolholder;
- a first internal balancing feature disposed within a cavity of the first toolholder, the first internal balancing feature comprising a balancing mass suspended within the cavity by a spring-like element, and an adjusting screw for effecting radial movement of the balancing mass;
- and
- a second internal balancing feature disposed at a predetermined angular distance with respect to the first internal balancing feature and in a same plane as the first internal balancing feature, the plane being substantially perpendicular to the central, longitudinal axis of the rotary cutting tool,
- wherein the first and second balancing features comprise a combined set of balancing features that enables static balancing of the rotary cutting tool.
A rotary cutting tool having a central, longitudinal axis, comprising:
- a first toolholder;
- a second toolholder attached to the first toolholder;
- and
- a first internal balancing feature disposed within a cavity of one of the first and second toolholders, the first internal balancing feature comprising a balancing mass suspended within a cavity by a spring-like element, and an adjusting screw for effecting radial movement of the balancing mass;
- and
- a second internal balancing feature disposed at a predetermined angular distance with respect to the first internal balancing feature and in a same plane as the first internal balancing feature, the plane being substantially perpendicular to the central, longitudinal axis of the rotary cutting tool,
- wherein the first and second balancing features comprise a combined set of balancing features that enables static balancing of the rotary cutting tool.
A rotary cutting tool having a central, longitudinal axis, comprising:
- a first toolholder;
- a second toolholder attached to the first toolholder by an intermediate toolholder and
- a first internal balancing feature disposed within a cavity of one of the first, second and intermediate toolholders, the first internal balancing feature comprising a balancing mass suspended within a cavity by a spring-like element, and an adjusting screw for effecting radial movement of the balancing mass;
- and
- a second internal balancing feature disposed at a predetermined angular distance with respect to the first internal balancing feature and in a same plane as the first internal balancing feature, the plane being substantially perpendicular to the central, longitudinal axis of the rotary cutting tool,
- wherein the first and second balancing features comprise a combined set of balancing features that enables static balancing of the rotary cutting tool.
Dependencies are inferred from the claim text.