Machine tool
US-2017326700-A1 · Nov 16, 2017 · US
Processing method
US9700984B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9700984-B2 |
| Application number | US-201514933242-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 5, 2015 |
| Priority date | Sep 17, 2010 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A method of processing a crowned portion of a roller includes disposing first and second feed drums so as to extend parallel to each other, each of the first and second feed drums having an outer periphery formed with respective spirally extending threaded guide surfaces, the first and second feed drums being driven to rotate to transport the roller from a first location towards a second location through between the first and second feed drums, and successively processing the crowned portion of the roller, by means of a through feed processing with the use of a grinding stone. The threaded guide surface of one of the first and second feed drums is formed so that an angle of inclination of an outer peripheral surface of the roller relative to a processing surface of the grinding stone is varied in dependence on a roller passing position of the feed drum.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of processing a crowned portion of a roller, comprising: disposing first and second feed drums so as to extend parallel to each other, each of the first and second feed drums having an outer periphery formed with respective spirally extending threaded guide surfaces; driving the first and second feed drums to rotate about respective central axes to transport the roller, the roller being held in rolling contact with the threaded guide surfaces opposed to each other from a first location towards a second location through between the first and second feed drums; and successively processing the crowned portion of the roller passing through between the first and second feed drums, by means of a through feed processing with the use of a grinding stone, in which the threaded guide surface of one of the first and second feed drums is divided by collared convolutions from the neighboring peripheral portions, and the divided threaded guide surface is formed so that an angle of inclination of an outer peripheral surface of the roller relative to a processing surface of the grinding stone is varied in dependence on a roller passing position of the feed drum.
Assignees
Inventors
Classifications
for mass articles · CPC title
for grinding races, e.g. roller races · CPC title
- B24B5/04Primary
for grinding cylindrical surfaces externally (grinding combined cylindrical and conical surfaces B24B5/14) · CPC title
- F16C33/366Primary
Tapered rollers, i.e. rollers generally shaped as truncated cones · CPC title
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Frequently asked questions
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- What does patent US9700984B2 cover?
- A method of processing a crowned portion of a roller includes disposing first and second feed drums so as to extend parallel to each other, each of the first and second feed drums having an outer periphery formed with respective spirally extending threaded guide surfaces, the first and second feed drums being driven to rotate to transport the roller from a first location towards a second locati…
- Who is the assignee on this patent?
- Ntn Toyo Bearing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B24B5/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).