Method for producing a moulded body comprising a hub and device for carrying out the method
US11020784B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 27, 2017 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2250/0023
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for producing a molded body of particularly steel, and including a hub and a bell-shaped lower part axially connected thereto, in which an inner contour is made in the lower part by non-cutting forming in a convex region. The inner contour includes of ball tracks and cage paths that are concave in the axial direction and arranged in a peripherally alternating manner, for receiving rolling bodies, the cage paths being shallower than the ball tracks. The hub is formed from a rotating round blank and reducing the thickness thereof using at least one pressure roller. The flat region of the round blank that radially connects to the hub is pressed onto contour segments of a rotating first inner contour tool, partially forming the inner contour using at least one axially and radially moving pressure roller to form a preform of the lower part. The fixed preform is pressed against contour segments of a second inner contour tool by a die of partial dies, fully forming the cage paths and ball tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.