Knurling machine and the like
US4873856A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21H7/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for deforming the surface of a cylindrical metal portion of a workpiece at and adjacent its end includes a rotating disk having radially extending slots. Slide members having roller deforming tools rotatably journalled at one end are positioned in a respective slot with the tool disposed radially inwardly, the tools having axes of rotation parallel to the axis of rotation of the disk. A follower member is fastened to the other end of the slide member and extends outwardly from the slot beyond the circumference of the disk. The disk is mounted within an annular shell having a tapered internal cam surface varying in diameter in the axial direction. The shell is mounted for rotation with the disk but axially moveable relative to the disk. Abutment members are positioned behind the rear surface of the shell and is driven axially to force the shell to move in the axial direction to drive the followers and thus the tools radially inwardly against the surface of the workpiece which is clamped along the axis of the disk by a power driven vise. When the force applied to the abutment member is reversed springs between the disk and the shell return the shell to the initial position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.