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公开(公告)号：US08333100B2
公开(公告)日：2012-12-18
申请号：US12905527
申请日：2010-10-15
IPC分类号： B21J11/00
CPC分类号： B21D28/265 , B21D35/00 , Y10T83/04 , Y10T83/6484
摘要： A press machine able to press-work a strip-shaped material during which it can prevent the strip-shaped material from moving or warping or can prevent the strip-shaped material from partially cracking and a processing method using that press machine. A multi-process press machine provided with a drive source M, a camshaft 1 driven by the drive source M and having a plurality of independent first cams 1a, 1b, and 1c and second cams 1h, 1i, and 1j, a plurality of die sets each comprised of a pair of a punch 2 and a die 3 connected with the first cam, a material holding member 7 pressing the strip-shaped material W against the die 3 when connecting with and pressing the second cam, and a base 5 supporting the dies.
摘要翻译： 一种能够压制条状材料的压制机，在该压力机中可以防止带状材料移动或翘曲，或者可以防止条形材料部分破裂，以及使用该压力机的加工方法。 具有驱动源M，由驱动源M驱动并具有多个独立的第一凸轮1a，1b和1c以及第二凸轮1h，1i和1j的多个冲压机，多个模具 每个由一对冲头2和与第一凸轮连接的模具3组成，当与第二凸轮连接并按压第二凸轮时将材料保持构件7按压在模具3上的材料保持构件7和支撑 死亡。
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公开(公告)号：US5625948A
公开(公告)日：1997-05-06
申请号：US631211
申请日：1996-04-12
申请人： Yoshitaka Kuroda , Makoto Ito , Nobuyuki Morikawa , Ryoiti Izumi , Kenji Ogura
发明人： Yoshitaka Kuroda , Makoto Ito , Nobuyuki Morikawa , Ryoiti Izumi , Kenji Ogura
CPC分类号： B21D17/025 , B21C37/28 , B21D7/00 , Y10T29/49444
摘要： According to the present invention, in the first process, a pipe end of a long pipe is bent with a radius of curvature which is larger than a minimum radius of curvature to form a large R portion. That is to say, bending with a large radius of curvature (R) is performed to form a large R portion in a region in which cracking or excessive reduction of plate thickness of the bend outer-side portion, or buckling of the bend inner-side portion does not occur. Subsequently, in the second process, the pipe is bent with a small radius of curvature form a small R portion by pressing a pipe-end portion of the pipe from a pipe-end direction while fixedly holding the bend side wall of the pipe. In this way, it is possible to obtain an R-minimum elbow configuration irrespective of magnitude of an amount of elongation of material and further without special equipment or mechanisms, by minor modification of present equipment.
摘要翻译： 根据本发明，在第一种方法中，长管的管端弯曲曲率半径大于最小曲率半径以形成较大的R部分。 也就是说，在弯曲外侧部分的板厚度的破裂或过度减小或弯曲内侧部分的弯曲的区域中，执行具有大的曲率半径（R）的弯曲以形成大的R部分， 侧面部分不发生。 随后，在第二工序中，通过在固定保持管的弯曲侧壁的同时从管端方向挤压管的管端部，将管弯曲成小曲率半形状，形成小的R部。 以这种方式，通过对本设备的微小修改，可以获得R最小弯头构造，而不考虑材料的伸长量的大小，并且没有特殊设备或机构。
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公开(公告)号：US4982970A
公开(公告)日：1991-01-08
申请号：US218856
申请日：1988-07-14
IPC分类号： B23B31/16 , B23B31/167
CPC分类号： B23B31/16279 , Y10T279/1973 , Y10T279/1986
摘要： Disclosed is a claw unit with paired separably connected claw elements, which comprises a chuck body, a master jaw, a top jaw, position-limiting members, a locking member, and an engaging member. When the engaging member is rotated, the locking member which is in engagement with the engaging member is retreated into the master jaw from a front surface thereof. Thereafter, the top jaw is forced into the front surface of the master jaw. When the top jaw has been thus brought into engagement with the position-limiting members and further into contact with the front surface of the master jaw, the top jaw is moved somewhat in a radial direction of the chuck body. When, in this state, the engaging member is rotated, the locking member which has been elastically urged is allowed to rush into a positioning hole of the top jaw to lock the top jaw. Thus, the top jaw is made integral with the master jaw. When it is desired to demound the top jaw from the master jaw, the engaging member is rotated so as to permit the locking member to be retreated into the master jaw.
摘要翻译： 公开了具有成对的可分离连接的爪元件的爪单元，其包括卡盘主体，主夹爪，顶爪，位置限制构件，锁定构件和接合构件。 当接合构件旋转时，与接合构件接合的锁定构件从其前表面退回到主钳口中。 此后，上颚被迫进入主颚的前表面。 当顶颚已经与位置限制部件接合并且进一步与主颚的前表面接触时，顶颚在卡盘体的径向方向上稍微移动。 当在该状态下接合构件旋转时，被弹性推动的锁定构件被允许冲入顶部夹爪的定位孔以锁定顶部夹爪。 因此，顶颚与主颚构成一体。 当需要从主颚部弄脏顶颚时，接合构件被旋转以允许锁定构件被退回到主颚中。
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