Title:
WORKPIECE PRODUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/004222
Kind Code:
A1
Abstract:
This workpiece production apparatus comprises a stationary mold (10) and a movable mold (20). The stationary mold (10) comprises a stationary mold body (10a) and a die (11). The movable mold (20) comprises: a movable mold body (20a); a forming punch (21); a punching punch (22), a first pressing member (30); and a second pressing member (40) having a higher rigidity than the first pressing member (30). The workpiece production apparatus is configured to sequentially perform, by bringing the movable mold (20) close to the stationary mold (10), preforming a sheet material, punching a workpiece out of the sheet material, and final molding on the workpiece by causing a tip (42) of the second pressing member (40) to press the forming punch (21) in conjunction with compressive deformation of the first pressing member (30).
Inventors:
HIRATA KAZUYUKI (JP)
Application Number:
PCT/JP2021/020553
Publication Date:
January 06, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
TOYOTA BOSHOKU KK (JP)
International Classes:
B21D22/02; B21D22/30
Domestic Patent References:
| WO2014196277A1 | 2014-12-11 |
Foreign References:
| JPH08117880A | 1996-05-14 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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