Outboard motor and method of manufacturing shaft for outboard motor
US-2020130801-A1 · Apr 30, 2020 · US
Machine tool
US8967925B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8967925-B2 |
| Application number | US-201113218776-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 26, 2011 |
| Priority date | Nov 11, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A machine tool re-machines a workpiece after positioning drive motors, a hob and the workpiece by stopping the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. For this purpose, a drive control section recognizes, based on the rotational-speed ratio of the drive motor corresponding to the hob and the hob and/or the rotational-speed ratio of the drive motor corresponding to the workpiece to the workpiece, and detection signals from detection sensors detecting that the rotational positions of the drive motors are at their respective zero positions, detections signals when the rotational positions of the drive motors and the rotational positions of the hob and the workpiece correspond to their respective zero positions, and stops the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions.
First claim
Opening claim text (preview).
What is claimed is: 1. A machine tool for performing gear cutting on a workpiece with a hob, comprising: a first holding member for holding the hob; a second holding member for holding the workpiece; first drive means having a first drive motor for rotating the hob held by the first holding member about its axis; second drive means having a second drive motor for rotating the workpiece held by the second holding member about its axis; first detecting means transmitting a f…
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Classifications
Operations & Transport · mapped topic
- B23F5/22Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8967925B2 cover?
- A machine tool re-machines a workpiece after positioning drive motors, a hob and the workpiece by stopping the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. For this purpose, a drive control section recognizes, based on the rotational-speed ratio of the drive motor corresponding to the hob and the hob …
- Who is the assignee on this patent?
- Tsuchimochi Koji, Dmg Mori Seiki Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23F5/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 03 2015 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).