发明授权
- 专利标题: Pressing machine with die cushion device
- 专利标题(中): 压模机带模具缓冲装置
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申请号: US11794935申请日: 2006-01-12
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公开(公告)号: US07958765B2公开(公告)日: 2011-06-14
- 发明人: Kiyokazu Baba , Hiroaki Honma , Masahide Sunata , Hajime Yoshida , Hirohide Satou
- 申请人: Kiyokazu Baba , Hiroaki Honma , Masahide Sunata , Hajime Yoshida , Hirohide Satou
- 申请人地址: JP Tokyo JP Tokyo
- 专利权人: Komatsu Ltd.,Komatsu Industries Corp.
- 当前专利权人: Komatsu Ltd.,Komatsu Industries Corp.
- 当前专利权人地址: JP Tokyo JP Tokyo
- 代理机构: Holtz, Holtz, Goodman & Chick, PC
- 优先权: JP2005-006794 20050113
- 国际申请: PCT/JP2006/300289 WO 20060112
- 国际公布: WO2006/075659 WO 20060720
- 主分类号: B21D22/00
- IPC分类号: B21D22/00 ; B21J9/18 ; B30B1/32
摘要:
A pressing machine 1 includes: a bed 6 on which a die-cushion device 10 is provided; and a bolster 51 provided on the bed 6. The bed 6 has an inner space 61 in which a die-cushion pad 13 of the die-cushion device 10 is lifted up and down. A supporting portion 63 penetrating the die-cushion pad 13 in a lifting direction and supporting a lower surface of the bolster 51 via a carrier 52 is provided in the inner space 61. With this arrangement, since the bolster 51 is supported by the supporting portion 63, the bolster 51 can be prevented from being flexed during a press forming operation, whereby a highly accurate press forming operation can be realized. In addition, since the supporting portion 63 penetrates the die-cushion pad 13, unlike conventional arrangements, the die-cushion pad 13 does not need to be divided, whereby a complication of the arrangement can be avoided.
公开/授权文献
- US20080141751A1 Pressing Machine with Die Cushion Device 公开/授权日:2008-06-19
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