Hemming machine
    1.
    发明授权
    Hemming machine 失效
    起重机

    公开(公告)号:US5746083A

    公开(公告)日:1998-05-05

    申请号:US693320

    申请日:1996-10-07

    IPC分类号: B21D19/08 B21D39/02

    CPC分类号: B21D39/021 Y10T29/53791

    摘要: A hemming machine adapted to externally and internally hem a sheet metal fabrication comprising an anvil which itself is apertured so as to register with an aperture in the metal fabrication which is to be internally hemmed, wherein additional hemming apparatus is provided mounted at the upper end of a drive, and support means is located below and protruding up through the opening in the anvil so as to protrude the opening in the fabrication, further comprising a hemming tool displaceable vertically and horizontally having a chamfered lower leading edge, a slidable block carrying the tool at one end, drive means for positioning the slide vertically, and further drive means for positioning the block within the slide for positioning the tool horizontally, a second anvil resiliently displaceable and engaging the underside of the tool or normally raise the latter relative to its lowermost position, and wherein the upper surface of the block is adapted to withstand an impact force and transmit same to the tool to force the tool in a downward direction until the tool and block bottom on stop means. A method of internal and external hemming is also disclosed.

    摘要翻译: PCT No.PCT / GB95 / 00288 Sec。 371日期1996年10月7日第 102(e)日期1996年10月7日PCT提交1995年2月13日PCT公布。 出版物WO95 / 21710 日期1995年8月17日一种适用于外部和内部边缘的折边机,该金属板制造包括砧座,该砧座本身具有孔径,以便与内部卷边的金属制造中的孔对准,其中安装有额外的折边装置 在驱动器的上端,并且支撑装置位于下方并通过砧座中的开口突出,以便在制造中突出开口,还包括可垂直和水平地移位的折边工具,其具有倒角的下前缘, 在一端承载工具的可滑动块,用于垂直定位滑块的驱动装置,以及用于将块定位在滑动件内以用于水平定位工具的另外的驱动装置,可弹性移位并接合工具下侧的第二砧座, 后者相对于其最低位置,并且其中块的上表面适于承受冲击 ct力并将其传送到工具,以迫使刀具向下,直到刀具和挡块底部停止。 还公开了一种内外折叠方法。

    Hemming machine
    2.
    发明授权
    Hemming machine 失效
    起重机

    公开(公告)号:US5740691A

    公开(公告)日:1998-04-21

    申请号:US687503

    申请日:1996-07-29

    IPC分类号: B21D19/08 B21D39/02

    CPC分类号: B21D39/021 Y10T29/53791

    摘要: A press is described for prehemming and final hemming the internal periphery of an aperture in sheet material received on an anvil (10) on which the sheet material (12) is held down so that the upturned edge (14) of the aperture which is to be hemmed is substantially in alignment with the edge of the opening in the anvil (10). A composite hemming tool (40, 42) is provided adapted to perform prehemming and final hemming and carried b a tool carrier (36, 38). Drive means (24, 26) protrudes up from the press through the opening in the anvil so that a lower inclined leading edge (44, 46) of the tool substantially registers with the upturned edge (14) to be hemmed. The drive means operates so as to force the tool first of all towards the edge so as to bend the upturned edge over until it is bent through substantially 90 degrees from its upstanding position and thereafter to move in a generally downward direction so as to compress the downturned ege. A method of hemming is also described based on this machine.

    摘要翻译: PCT No.PCT / GB95 / 00289 Sec。 371日期:1996年7月29日 102(e)日期1996年7月29日PCT提交1995年2月13日PCT公布。 公开号WO95 / 21711 日期1995年8月17日描述了一种用于预浸和最终折边的片材材料(12)的砧座(10)上容纳的片材的孔的内周边, 要被卷绕的孔径基本上与砧座(10)中的开口的边缘对准。 提供一种复合折边工具(40,42),其适于执行预制和最终折边,并承载工具托架(36,38)。 驱动装置(24,26)从压力机通过砧座中的开口向上突出,使得工具的下倾斜前缘(44,46)基本上与向上翻转的边缘(14)对准而被卷绕。 驱动装置的作用是首先将工具朝向边缘强制,以便将向上翻转的边缘向上弯曲,直到其从其直立位置弯曲大致90度,然后沿大致向下的方向移动,以便压缩 经济衰退 还基于该机器描述了折边的方法。