Spindle for a ball screw and method for producing same
US-10486273-B2 · Nov 26, 2019 · US
Spindle nut, threaded drive, and method for manufacturing a spindle nut
US11326674B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11326674-B2 |
| Application number | US-201716095739-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 28, 2017 |
| Priority date | May 25, 2016 |
| Publication date | May 10, 2022 |
| Grant date | May 10, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Methods for producing a spindle nut, and spindle nuts produced by such methods are disclosed. The method for producing a spindle nut may include producing a blank which has a sleeve portion and a cylindrical outer surface by non-cutting shaping from sheet metal; and forming a thread provided for cooperation with a threaded spindle in the blank by non-cutting shaping, while maintaining the cylindrical outer surface of the sleeve portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a spindle nut, the method comprising: producing a blank which has a sleeve portion and a cylindrical outer surface by non-cutting shaping from sheet metal wherein, a radially outwardly pointing flange is integrally formed on one end face of the blank and a radially inwardly directed rim is integrally formed on the opposite end face; forming a thread provided for cooperation with a threaded spindle in the blank by non-cutting shaping, while maintaining the cylindrical outer surface of the sleeve portion. 2. The method as claimed in claim 1 , wherein the sleeve portion is formed by deep drawing or extrusion and the thread is formed by thread grooving. 3. The method as claimed in claim 1 , wherein a wall thickness of the flange and a wall thickness of the rim deviates from a mean wall thickness (W) of the sleeve portion by no more than 15%. 4. A spindle nut, comprising a sleeve portion with a cylindrical outer surface and a threaded inner surface, a radially outwardly pointing flange integrally formed on a first end face of the sleeve portion, and a radially inwardly directed rim integrally formed on a second end face of the sleeve portion opposite the first end face, wherein a depth of threads of the threaded inner surface is at least 20% and at most 50% of a mean wall thickness of the sleeve portion. 5. The spindle nut as claimed in claim 4 , wherein the mean wall thickness is less than a quarter of a radius of the sleeve portion. 6. A screw drive comprising a spindle nut as claimed in claim 4 and a threaded spindle cooperating with this spindle nut. 7. The screw drive as claimed in claim 6 , wherein it is a non-returning ball screw drive. 8. The screw drive as claimed in claim 6 , wherein it is a ball screw drive with a single or external recirculation system.
Assignees
Inventors
Classifications
- F16H25/22Primary
with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members · CPC title
- F16H25/2204Primary
with balls · CPC title
- F16H25/24Primary
Elements essential to such mechanisms, e.g. screws, nuts (F16H25/22 takes precedence) · CPC title
internal screw-threads · CPC title
nuts or like thread-engaging members · CPC title
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Frequently asked questions
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- What does patent US11326674B2 cover?
- Methods for producing a spindle nut, and spindle nuts produced by such methods are disclosed. The method for producing a spindle nut may include producing a blank which has a sleeve portion and a cylindrical outer surface by non-cutting shaping from sheet metal; and forming a thread provided for cooperation with a threaded spindle in the blank by non-cutting shaping, while maintaining the cylin…
- Who is the assignee on this patent?
- Schaeffler Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification F16H25/22. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue May 10 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).