基本信息:
- 专利标题： PRESS BRAKE CROWNING METHOD USING FORCE-INCREASING MECHANISM, AND PRESS BRAKE
- 申请号：EP17763132.2 申请日：2017-03-03
- 公开(公告)号：EP3427854A1 公开(公告)日：2019-01-16
- 发明人： SUZUKI Taishi , AOKI Makoto
- 申请人： Amada Holdings Co., Ltd.
- 申请人地址： 200 Ishida Isehara-shi, Kanagawa 259-1196 JP
- 专利权人： Amada Holdings Co., Ltd.
- 当前专利权人： Amada Holdings Co., Ltd.
- 当前专利权人地址： 200 Ishida Isehara-shi, Kanagawa 259-1196 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2016047798 20160311; JP2017000111 20170104
- 国际公布： WO2017154792 20170914
- 主分类号： B21D5/02
- IPC分类号： B21D5/02 ; B30B15/24
摘要：
Provided are a crowning method and a press brake wherein, when crowning with a lower table is performed, the crowning is performed while rotating eccentric shafts using a force-increasing mechanism. In this press brake crowning method a front plate 11 and a back plate 13 are provided respectively at the front and back of a lower table 5, which is supported by left and right side frames 3L and 3R in a press brake 1, and crowning is performed while rotating eccentric shafts 23, which are provided in the lower table 5 with intervals therebetween in the left-right directions. A force-increasing mechanism 41 is provided between each eccentric shaft 23 and an actuator 31 for rotating each eccentric shaft 23, the output of the actuator 31 is increased by the force-increasing mechanism 41 and is transmitted to each eccentric shaft 23, and each eccentric shaft 23 is rotated, thereby performing crowning.
公开/授权文献:
- EP3427854B1 PRESS BRAKE USING FORCE-INCREASING MECHANISM 公开/授权日：2021-06-16
IPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21D | 金属板或管、棒或型材的基本无切削加工或处理；冲压 |
| ------B21D5/00 | 沿直线弯曲金属板，如形成简单曲线形 |
| --------B21D5/02 | .在不用夹紧装置的压弯机上 |