Honing method with cross-grinding for gear wheels

Patent metadata

Field	Value
Publication number	US-12138701-B2
Application number	US-201716322590-A
Country	US
Kind code	B2
Filing date	Jul 10, 2017
Priority date	Aug 3, 2016
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A method for creating a surface structure on a gear wheel in a honing process, in which at least one honing tool is moved along the gear wheel in a first direction using a first crossed axes angle, and in which, subsequently, the at least one honing tool is moved along the gear wheel in a second direction, opposite to the first direction, using a second crossed axes angle, and in which the first crossed axes angle and the second crossed axes angle are chosen such that first scoring marks produced when the at least one honing tool is moved in the first direction on a surface of the gear wheel at least partially intersect, at a given angle, respective second scoring marks produced when the at least one honing tool is moved in the second direction on the surface of the gear wheel.

First claim

The invention claimed is:

1. A method for creating a surface structure on a gear wheel in a honing process, comprising:
at least one honing tool is moved along the gear wheel in a first direction using a first crossed axes angle, wherein the at least one honing tool is moved along the gear wheel in a second direction, opposite to the first direction, using a second crossed axes angle, wherein the first crossed axes angle and the second crossed axes angle are chosen such that first scoring marks produced when the at least one honing tool is moved in the first direction on a surface of the gear wheel at least partially intersect, at a given angle, respective second scoring marks produced when the at least one honing tool is moved in the second direction on the surface of the gear wheel;
wherein each of the first scoring marks provided at the first crossed axes angle and the second scoring marks provided at the second crossed axes angle intersects an axis extending transversely from a center point of the gear wheel, said axis separating a left half of the gear wheel from a right half of the gear wheel;
wherein each of the first scoring marks extends from a side-left edge of the gear wheel on the left half to a top of the gear wheel on the right half; and
wherein each of the second scoring marks extends from a right edge of the gear wheel on the right half to the top of the gear wheel on the left half.

2. The method as claimed in claim 1 , wherein a gear honing process is chosen as the honing process.

3. The method as claimed in claim 1 , wherein a power honing arrangement is used to move the honing tool along the gear wheel.

4. The method as claimed in claim 1 , wherein the at least one honing tool is designed as a honing ring and is moved radially along the gear wheel.

5. The method as claimed in claim 1 , wherein a cross-grinding is generated on the gear wheel.

6. The method as claimed in claim 1 , wherein the scoring marks are created on an internal toothing or an external toothing of the gear wheel.

7. A gear wheel, comprising:
respective teeth of the gear wheel have a surface structure with a number of first scoring marks and a number of second scoring marks, and wherein the number of first scoring marks intersects the number of second scoring marks, at least partly, at a given angle;
wherein each of the first scoring marks provided at a first crossed axes angle and the second scoring marks provided at a second crossed axes angle intersects an axis extending transversely from a center point of the gear wheel, said axis separating a left half of the gear wheel from a right half of the gear wheel;
wherein each of the first scoring marks extends from a left edge of the gear wheel on the left half to a top of the gear wheel on the right half; and
wherein each of the second scoring marks extends from a right edge of the gear wheel on the right half to the top of the gear wheel on the left half.

8. The gear wheel as claimed in claim 7 , wherein the number of first scoring marks and the number of second scoring marks are arranged in a cross-grinding or cross-hatching pattern.

9. A honing machine for the power honing of a gear wheel, comprising:
at least one honing tool and a controller, wherein the controller moves the at least one honing tool in a first direction along the gear wheel, and wherein the controller moves the at least one honing tool in a second direction, opposite to the first direction, along the gear wheel, and wherein the controller adjusts a crossed axes angle between the gear wheel and the at least one honing tool in dependence on a current direction of movement, such that, when the at least one honing tool is moved in the first direction, scoring marks created on a surface of the gear wheel at least partly intersect, at a given angle, respective scoring marks produced on the surface of the gear wheel during a movement of the at least one honing tool in the second direction;
wherein each of the first scoring marks provided at the first crossed axes angle and the second scoring marks provided at the second crossed axes angle intersects an axis extending transversely from a center point of the gear wheel, said axis separating a left half of the gear wheel from a right half of the gear wheel;
wherein each of the first scoring marks extends from a left edge of the gear wheel on the left half to a top of the gear wheel on the right half; and
wherein each of the second scoring marks extends from a right edge of the gear wheel on the right half to the top of the gear wheel on the left half.

Assignees

• Audi Ag

Inventors

• Heilmann Markus
• Buratowski Philipp

Classifications

• B23F19/05

  Honing gear teeth · CPC title

• B23F5/163

  the tool and workpiece being in crossed axis arrangement, e.g. skiving, i.e. "Waelzschaelen" · CPC title

• B23F21/03

  Honing tools · CPC title

• B23F19/057 Primary

  by making use of a tool in the shape of an internal gear · CPC title