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US 4,838,136 AGranted
Rotary tool for outer working of rotation-symmetrical workpieces
AssigneeNapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
InventorsDieter Kress, Friedrich Haberle
Life of this patent
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Abstract
A rotary tool for outer working of rotation-symmetrical workpieces has a cutting head formed as a hollow body having a side wall and a groove, a cutting device arranged in the groove of the side wall, and a guide for a workpiece, provided at an inner side of the cutting head at least in the region of the cutting device.
Claims21
A rotary tool for outer working of rotation-symmetrical workpieces, comprising
- a cutting head formed as a hollow body having a side wall and a groove and rotatable in a predetermined direction;
- cutting means having a predetermined length and arranged in said groove of said side wall;
- and
- a guide for a workpiece, provided at an inner side of said cutting head at least in the region of said cutting means, wherein said guide is formed as a sleeve provided in said side wall of said cutting head and connected with said cutting head and wherein said guide extends over the whole length of said cutting means and wherein the guide has a first inner radius in an angular region which is located after said cutting means when advancing in the direction of the rotation, and a second inner radius in a remaining region, said first inner radius being greater than said second inner radius.
1 more element
A rotary tool for outer working of rotation-symmetrical workpieces, comprising
- a cutting head formed as a hollow body having a side wall and a groove;
- cutting means, including a cutting plate (8), arranged in said side wall;
- and
- a guide for a workpiece, provided at an inner side of said cutting head at least in the region of said cutting means, wherein the guide (12) is formed as a sleeve embedded in the side wall (5) of the cutting head (1), where said guide (12) is connected with the side wall and extends over the entire length of the cutting plate (8), and where the inner radius of the guide is larger in a first region, than in a remaining second region of the guide, which first region extends over a sector of 30 degrees and is disposed after the tool of the cutting plate (8) in the direction of rotation.
1 more element
Dependencies are inferred from the claim text.