Boring tool
AssigneeSandvik Intellectual Property AB
InventorRobin Karlsson
Life of this patent
Estimating the term…
Abstract
A boring tool includes a tool body rotatable around a central rotation axis. A slider member is arranged movably inside the tool body along a path extending transversely to the rotation axis. An insert pocket is associated with the slider member to move therewith and configured to receive a cutting insert with a cutting edge and which projects from the tool body transversely to the rotation axis. A motor member is connected to the slider member and controllable to move the slider member transversely to the rotation axis for changing the distance of the cutting edge to the rotation axis. The motor member is arranged inside the tool body together with the slider member in a cutting part of the tool body at a front end thereof. The motor member is arranged in parallel with the transversal extension of the slider member along said path.
Claims7
A boring tool comprising:
- a tool body including a front end and a rear end, between which a central rotation axis extends around and which the tool body is rotatable in a direction of rotation;
- a hollow slider member arranged movably inside the tool body along a path extending transversely to said central rotation axis;
- an insert pocket associated with the slider member to move therewith and configured to receive a cutting insert to be secured therein by a fastening member, which cutting insert has a cutting edge that projects from the tool body transversely to said central rotation axis;
- a motor arranged inside a hollow screw having an external thread in engagement with an inner thread of a member fixed to the slider member and controllable to move the slider member transversely to said central rotation axis for changing a distance between the cutting edge of the cutting insert and said central rotation axis and by this distance the radius to be created in a hole of a workpiece when bored by rotation of the tool body, wherein the motor is configured to rotate said screw so as to move the slider member along said path;
- and
- a control unit configured to control the motor to move the slider member, wherein the motor is arranged inside the tool body together with the slider member in a cutting part of the tool body at said front end, and that the motor is arranged in parallel with said transversal extension of the slider member along said path.
Dependencies are inferred from the claim text.