Press brake control device, press brake control method, tool, and data structure of tool information
US11801545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Aug 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49304
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
When a sheet metal is sandwiched between a punch held by a punch holder and a die held by a die holder to bend the sheet metal at a set bending angle by moving the punch toward the die, a stroke calculation unit calculates a stroke of the punch for bending the sheet metal at the bending angle in consideration of a spring back amount of the bent sheet metal. A bending load calculation unit calculates a bending load required to bend the sheet metal at the bending angle. A punch deflection amount calculation unit calculates a punch deflection amount according to the bending load. A punch holder deflection amount calculation unit calculates a punch holder deflection amount according to the bending load. A depth value calculation unit calculates a depth value by adding at least the punch deflection amount and the punch holder deflection amount to the stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.