Method of grinding gears
View Patent ↗A method of grinding the tooth slots of a workpiece with a freshly dressed grinding wheel wherein dual-machining of tooth slots is eliminated. The method comprises grinding the first few slots of a gear at a corrected depth amount which accounts for the rapid wear and other conditions of the freshly dressed grinding wheel wherein for a first number of tooth slots (e.g. 1, 2, 3 or more), the grinding wheel is fed-in relative to the workpiece by the corrected depth amount.
1. A method of grinding a gear with a freshly-dressed grinding wheel, said gear having a plurality of tooth slots, said method comprising:
grinding each of said plurality of tooth slots,
wherein for an initial number of said plurality of tooth slots ground, inclusive of a first slot ground, the grinding wheel is fed into each of said tooth slots of said initial number by a respective correction amount so as to compensate for material removal effects of said grinding wheel due to said grinding wheel being freshly-dressed,
wherein none of said plurality of tooth slots are reground.
2. The method of claim 1 wherein a tooth slot immediately subsequent to said initial number is ground with no correction amount.
3. The method of claim 2 further comprising grinding the remainder of said plurality of tooth slots wherein the grinding of each remaining tooth slot includes a compensation amount for each respective remaining tooth slots based upon normal continual wear of the grinding wheel.
4. The method of claim 1 wherein said initial number is 1, 2 or 3.
5. The method of claim 1 wherein said grinding wheel is a cup-shaped grinding wheel.
6. The method of claim 1 wherein said grinding wheel is a disc-shaped grinding wheel.
7. The method of claim 1 wherein said gear is a bevel gear.
8. The method of claim 1 wherein said gear is a cylindrical gear.
9. The method of claim 1 wherein said respective correction amount for each of said tooth slots of said initial number is determined from a master ground workpiece.
10. The method of claim 1 wherein said respective correction amount for each of said tooth slots of said initial number is determined mathematically based on characteristics of grinding wheel material and gear geometry and material.