Lower die for a bending machine
US6644091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/0209
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A lower die (10) for a bending machine includes a support member (40) and a work member (60), manufactured separately. The support member defines a longitudinal groove (44) in an upper surface thereof, a pair of longitudinal V-shaped slots (48) in opposite side walls thereof, and a plurality of screw holes (42) in a bottom surface thereof. A pair of shoulders (46) is formed on opposite sides of the groove. The work member comprises a position portion (66) for being accommodated in the groove, a pair of projections (68, 70) for abutting against the shoulders, and an upper wedge-shaped groove (72) for shaping a workpiece. The lower die is secured on a die shoe (20 or 20′) by screws (12) which extend through the die shoe and engage with the screw holes, or by engagement of the V-shaped slots with V-shaped protrusions (29′) of the die shoe (20′).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.