Tube-bending machine
US4380917A · kind A · utility
13Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1981 |
| Grant date | Apr 26, 1983 |
| Priority date | — |
| Expiry date | Feb 5, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D9/073
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention relates to a tube-bending machine, which is so constructed that force detection means to detect a force acting in the axial direction of a mandrel under a tube-bending operation is disposed on the mandrel of tube-bending means so as to sense bending conditions such as a lubrication condition of an inner surface of a tube being bent and a mandrel position, and further that fluctuations from predetermined bending conditions, of the bending conditions during the tube-bending operation are detected and corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.