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51. 发明授权

US5272643A Press brake with crown adjustment and movable table adjustment calculate from first and second die contiguous position 失效
标题翻译：带有凸轮调节和活动台调整的压力制动器从第一和第二模具连续位置进行计算
公开(公告)号：US5272643A
公开(公告)日：1993-12-21
申请号：US674349
申请日：1991-04-29
申请人： Shigeru Tokai
发明人： Shigeru Tokai
IPC分类号： B21D5/02 , B30B15/00 , B30B15/18 , B30B15/26 , G06F15/46
CPC分类号： B21D5/0272 , B21D5/02 , B30B15/007 , B30B15/26
摘要： An apparatus for controlling a press brake is advantageously employable for a press brake for which a high operational efficiency and a high working accuracy are required. In response to inputting of working conditions inclusive of a target bending angle for a plate, the apparatus calculates displacement of a load active on a stationary table and a movable table, automatically calculates a quantity of crowning to be adjusted based on results derived from the foregoing calculation and then calculates the present position assumed by the movable in additional consideration of the quantity of crowning to be adjusted, based on results derived from the aforementioned calculations. The press brake accurately bends the plate based on the thus derived quantity of crowing to be adjusted and the present position assumed by the movable table without an occurrence of malfunction of so-called intermediate opening of the bent plate.
摘要翻译： PCT No.PCT / JP90 / 01105 Sec。 371日期：1991年4月29日 102（e）日期1991年4月29日PCT提交1990年8月30日PCT公布。公开号WO91 / 03333 1991年3月21日。用于控制压制机的设备有利地用于需要高操作效率和高加工精度的压制机。响应于输入包括板的目标弯曲角度的工作条件，该装置计算在静止台和可移动台上的活动载荷的位移，根据从上述得到的结果自动计算要调整的隆起量计算，然后根据上述计算得出的结果，计算可移动量假定的当前位置，另外考虑到要调整的隆起量。按压制动器基于由此导致的待调节的挤压量和由可移动台假设的当前位置而精确地弯曲板，而不会发生所谓的弯曲板的所谓的中间开口的故障。

52. 发明授权

US5043111A Process and apparatus for the manfuacture of dimensionally accurate die-formed parts 失效
标题翻译：用于尺寸精确的模具零件的制造工艺和装置
公开(公告)号：US5043111A
公开(公告)日：1991-08-27
申请号：US537568
申请日：1990-06-14
申请人： Gerd Hinzmann , Norbert Nies , Siegfried Radewahn
发明人： Gerd Hinzmann , Norbert Nies , Siegfried Radewahn
IPC分类号： B30B15/18 , B22F3/02 , B30B11/00 , B30B11/02
CPC分类号： B22F3/02 , B30B11/005 , B22F2999/00
摘要： A plurality of rams in a pressing machine are movable into and out of a predetermined position to compress power material and shape a die-formed part. The rams are advanced to a pre-selected spaced relationship to form a desired configuration of the die-formed part. Strain gauges are mounted on each ram to detect during the pressing operation elastic deformation, altering the dimension of the ram and the shape of the die-formed part. In response to detected elastic deformation, the strain gauges transmit a signal through a controller to a readout device for recording the magnitude of ram deformation. Thereafter, the press drive mechanism is actuated to move the rams to compensate for the change in dimension of the rams so that the rams are repositioned to maintain the desired spaced relationship for a predetermined configuration of the die-formed part.
摘要翻译：压制机中的多个柱塞可移动进出预定位置以压缩动力材料并成形模具部件。柱塞前进到预先选择的间隔关系以形成模具形成部件的期望构造。应变计安装在每个压头上，以在压制操作期间检测弹性变形，改变冲头的尺寸和模具形成部件的形状。响应于检测到的弹性变形，应变计通过控制器将信号传输到读出装置，用于记录压头变形的大小。此后，致动推动机构以移动公柱以补偿柱塞的尺寸变化，从而重新定位柱塞以保持模具形成部件的预定构造所需的间隔关系。

53. 发明授权

US4934230A Die stamping system 失效
标题翻译：冲压系统
公开(公告)号：US4934230A
公开(公告)日：1990-06-19
申请号：US235957
申请日：1988-08-24
申请人： Bernard J. Wallis
发明人： Bernard J. Wallis
IPC分类号： B21D28/24 , B21D28/16 , B21D45/00 , B30B15/18
CPC分类号： B21D45/00 , B21D28/16 , Y10T83/2122 , Y10T83/2133 , Y10T83/2153
摘要： A die stamping system includes opposed die members which clamp a metal workpiece to be shaped, cut or pierced after which the die members are moved away from one another and a part is subsequently ejected wherein the ejector is controlled for a selected delay time by a plurality of cylinder assemblies mounted in a manifold so that they are connected to a source of inert gas such as nitrogen under high pressure and to a source of hydraulic pressure. Each cylinder assembly includes a piston associated with and exposed to the nitrogen in the manifold. The cylinder assemblies are connected to a single hydraulic valve which has associated therewith an accumulator and which is operated simultaneously to actuate the cylinders. The hydraulic lines to the cylinders are provided in the manifold.

54. 发明授权

US4922716A Throttled exhaust outlet to reservoir for reducing noise resulting from release hydraulic pressure surges 失效
标题翻译：节流排气口用于储存，用于减少因释放液压冲击而产生的噪音
公开(公告)号：US4922716A
公开(公告)日：1990-05-08
申请号：US143649
申请日：1988-01-13
申请人： Robert L. Suffridge
发明人： Robert L. Suffridge
IPC分类号： B22D17/26 , B29C45/67 , B30B15/00 , B30B15/16 , B30B15/18 , F15B21/04
CPC分类号： F15B21/008 , B30B15/186 , Y10T137/86372
摘要： A method and apparatus for reducing the intensity of the sound that accompanies a rapid decompression in a pressurized hydraulic system such as that of an injection molding machine. The apparatus includes a reduced area valve that interconnects the high pressure system with a low pressure system, with the valve connected with a tubular muffler so that high pressure fluid is initially released through the valve and into the muffler. The muffler includes a plurality of spaced apertures that face a rigid structural surface so that the high pressure fluid passing through the muffler issues from the several apertures and impinges on the rigid structure to dissipate the pressure shock accompanying decompression, and thereby modulate the intensity of the sound of decompression.

55. 发明授权

US4909061A Drawing tool 失效
标题翻译：绘图工具
公开(公告)号：US4909061A
公开(公告)日：1990-03-20
申请号：US321773
申请日：1989-03-10
申请人： Erhardt Reitter , Karl Hehl , Herbert Kraibuhler
发明人： Erhardt Reitter , Karl Hehl , Herbert Kraibuhler
IPC分类号： B21D24/00 , B21D24/04 , B21D24/08 , B21D24/10 , B21D24/14 , B30B1/34 , B30B15/18
CPC分类号： B21D24/14
摘要： The drawing tool comprises a hydraulic element for deriving from the movement of the blank holder a simultaneous, oppositely directed movement of the drawing punch. The hydraulic element comprises a centrally disposed working piston, an annular piston, which surrounds that working piston, and a cylinder, which surrounds the annular piston. The working piston and the annular piston are adapted to be supplied with pressure fluid from first and second cylinder chambers which are hydraulically separated from each other and which are adapted to communicate with each other under the control of at least two alternative flow paths, which differ in hydraulic design so that they cause pressure changes on different pressure levels to be effected in the second cylinder chamber. A pressure detector detects the pressure of the fluid in the cylinder chambers and enables an alternative flow path in response to a rise of the pressure above a predetermined limit. As a result, a low-cost, compact tool has been provided, which can be used to make even parts which can be drawn only with great difficulty owing to their desired final shape and/or the material from which they are made.
摘要翻译：绘图工具包括一个液压元件，用于从坯料夹持器的运动中导出拉伸冲头的同时相对定向的运动。液压元件包括居中设置的工作活塞，围绕该工作活塞的环形活塞和围绕环形活塞的气缸。工作活塞和环形活塞适于被供应来自第一和第二气缸室的压力流体，这些压力流体彼此液压地分离，并且适于在至少两个可选流动路径的控制下彼此连通在液压设计中，使得它们在第二气缸室中实现不同压力水平的压力变化。压力检测器检测气缸室中的流体的压力，并且能够响应于高于预定极限的压力升高来实现替代流路。结果，提供了一种低成本，紧凑的工具，其可用于制造均匀的零件，其可以由于其期望的最终形状和/或其制造的材料而难以拉伸。

56. 发明授权

US4656862A Press machine 失效
标题翻译：压机
公开(公告)号：US4656862A
公开(公告)日：1987-04-14
申请号：US792529
申请日：1985-10-29
申请人： Tsuneo Kogure , Yuji Tsuchiyama , Tadashi Amano , Hideaki Takahashi , Katsuji Sekita , Ichio Akami
发明人： Tsuneo Kogure , Yuji Tsuchiyama , Tadashi Amano , Hideaki Takahashi , Katsuji Sekita , Ichio Akami
IPC分类号： B21D5/02 , B30B15/18 , B30B15/20 , B21J7/46 , F16K31/02
CPC分类号： B21D5/02 , B30B15/18 , B30B15/20
摘要： The present invention relates to a press machine that has a vertically movable ram for supporting upper or lower bending tools, said ram being integrally provided with an operation member, and a position determining member having an adjustable position located at a suitable point on said press machine such that when the operation member on the ram contacts the position determining member, the vertical movement of the ram is stopped. The press machine further includes a screw mechanism that is screw-coupled to the position determining member and is movable in an axial direction, a pulse motor drive unit which turns the threaded bolt, and a manual pulse generator for operating the pulse motor from a remote location.
摘要翻译：本发明涉及一种具有用于支撑上或下弯曲工具的可升降活塞的冲压机，所述冲头一体地设置有操作构件，以及位置确定构件，该位置确定构件具有位于所述压力机上的适当位置的位置确定构件使得当冲头上的操作构件接触位置确定构件时，停止冲头的垂直运动。压力机还包括螺纹连接到位置确定部件并可沿轴向运动的螺钉机构，旋转螺栓的脉冲马达驱动单元和用于从远程操作脉冲马达的手动脉冲发生器位置。

57. 发明授权

US4531901A Crosshead and bolster spacing control for servo controlled press 失效
标题翻译：伺服控制压力机的十字头和摇摆间距控制
公开(公告)号：US4531901A
公开(公告)日：1985-07-30
申请号：US608716
申请日：1984-05-10
申请人： Dennis H. Andersen
发明人： Dennis H. Andersen
IPC分类号： B30B15/18 , B30B11/00
CPC分类号： B30B15/18
摘要： A transducer arrangement provides a feedback signal which indicates the position of a first part relative to a base and when a second movable part is positioned adjacent the first part the transducer provides a signal indicating the spacing between the two parts. Specifically the transducer provides for spacing control between the two halves of a mold mounted in a press wherein a crosshead moves a substantial distance and carries one part of the mold (the upper half) relative to the lower mold part. Hydraulic actuators act on the lower part of the mold to provide the molding force when the mold parts are close together. The transducer is mounted in a housing and arranged to provide a signal used for controlling the hydraulic actuators to control the spacing of the two molds parts until the mold parts are separated a known amount, after which the hydraulic actuators are controlled by sensing the spacing of one mold half relative to the base of the press.
摘要翻译：换能器布置提供反馈信号，其指示第一部分相对于基座的位置，并且当第二可移动部件邻近第一部分定位时，换能器提供指示两个部分之间的间隔的信号。具体地，换能器提供在安装在压力机中的模具的两半之间的间隔控制，其中十字头相对于下模具部分移动相当长的距离并承载模具的一部分（上半部）。当模具部件靠近在一起时，液压致动器作用在模具的下部以提供模制力。传感器安装在壳体中并且布置成提供用于控制液压致动器的信号以控制两个模具部件的间隔，直到模具部件被分离已知的量，然后通过感测液压致动器的间距来控制液压致动器一个模具相对于压机的底部。

58. 发明授权

US4489578A Slide stop position control apparatus of a press 失效
标题翻译：压机的滑动停止位置控制装置
公开(公告)号：US4489578A
公开(公告)日：1984-12-25
申请号：US561815
申请日：1983-12-15
申请人： Shunichi Nagai , Kazuo Hiramura
发明人： Shunichi Nagai , Kazuo Hiramura
IPC分类号： B21D5/02 , B30B15/00 , B30B15/06 , B30B15/14 , B30B15/18 , F16P3/14 , B21B37/08
CPC分类号： B30B15/18 , F16P3/14 , F16P3/144
摘要： A slide stop position control apparatus of a press machine which can automatically effect slide stop position adjustment when the die and/or the punch are changed. The apparatus comprises a first detector for detecting the tip of the punch and a second detector for detecting an upper end of the die when the slide is moved towards the die. The first detector is mounted to a die base and the second detector is mounted to the slide and each detector includes a light emitter and a light receiver. A slide position detector is also provided and all of the detectors are connected to a control unit for controlling a drive unit for the slide.
摘要翻译：一种冲压机的滑动停止位置控制装置，其可以在模具和/或冲头改变时自动实现滑动停止位置调整。该装置包括用于检测冲头的尖端的第一检测器和用于当滑动件朝向模具移动时检测模具的上端的第二检测器。第一检测器安装在管芯基座上，第二检测器安装在载玻片上，每个检测器包括光发射器和光接收器。还提供了一个滑动位置检测器，并且所有检测器都连接到控制单元，用于控制滑块的驱动单元。

59. 发明授权

US4384517A Full tonnage stop for hydraulic presses 失效
标题翻译：液压机全量程停机
公开(公告)号：US4384517A
公开(公告)日：1983-05-24
申请号：US267903
申请日：1981-05-28
申请人： Edwin A. Spanke
发明人： Edwin A. Spanke
IPC分类号： B30B15/18 , B21J9/12 , B21J13/04 , B30B1/32 , B30B15/04 , B30B15/06 , B30B15/28
CPC分类号： B30B15/041 , B30B15/28
摘要： The drive cylinder component of a hydraulic press is reciprocable relative to a fixed ram to drive the press slide toward the press bed for the performance of work on a workpiece between the slide and bed. The cylinder component is provided with an integral radially outwardly extending flange about the periphery thereof at the open end of the cylinder, and the press frame is provided with a stop plate surrounding the cylinder and disposed in the path of the flange so as to be engaged thereby as the cylinder approaches its lowermost position with respect to the press bed. The stop plate and flange are adapted to take a full press tonnage load. The flange also supports guide components engaging gibbing on the press frame for guidance and support of the cylinder and thus the slide during reciprocation thereof.
摘要翻译：液压机的驱动气缸部件相对于固定的压头往复移动，以将压力机滑块朝向压床驱动，以便在滑台和床之间的工件上进行加工。气缸部件在气缸的开口端处围绕其圆周设置有一体的径向向外延伸的凸缘，并且压力机架设置有围绕气缸的止动板，并设置在凸缘的路径中以便接合从而当气缸相对于压床接近其最低位置时。挡板和法兰适用于全压载重负载。凸缘还支撑引导部件，该引导部件与压力机框架上的旋转接合，用于引导和支撑气缸，从而在滑动件的往复运动期间滑动。

60. 发明授权

US4174801A Hollow core panel insert installation device 失效
标题翻译：中空芯板插入式安装装置
公开(公告)号：US4174801A
公开(公告)日：1979-11-20
申请号：US932255
申请日：1978-08-09
申请人： Charles L. Holland , Steven S. Hardy
发明人： Charles L. Holland , Steven S. Hardy
IPC分类号： B23P19/02 , B30B15/18 , B21D47/04
CPC分类号： B30B15/18 , B23P19/02 , Y10T29/53078
摘要： A device for limiting the travel of an arbor press when pressing inserts into a panel. Two insert halves are pressed into a panel from opposite sides by means of an upper and lower anvil. The press movement is stopped by the device when a specified gap between the insert head and the exterior surface of the panel is obtained, compensating for any variations in the panel thickness.
摘要翻译：一种用于在将插入件压入面板时限制心轴压机的移动的装置。通过上砧和下砧将两个插入半部从相对侧压入面板。当获得插入头和面板的外表面之间的指定间隙时，通过该装置阻止按压运动，补偿面板厚度的任何变化。

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