公开(公告)号：US20240207922A1

公开(公告)日：2024-06-27

申请号：US18558199

申请日：2022-03-23

申请人： GFM GmbH

发明人： Gottfried Blaimschein ,  Robert Koppensteiner

IPC分类号： B21J7/14 ,  B21J1/04 ,  B21J7/28 ,  B21J9/12 ,  B21J9/18

CPC分类号： B21J7/14 ,  B21J1/04 ,  B21J7/28 ,  B21J9/12 ,  B21J9/18

摘要： A method for hot forming of a cast forging ingot uses a forging device with radially guided forging dies of which each have two die parts, which can be radially moved relative to each other and of which the inner die part bearing a forging tool is drive-connected, using a hydraulic cylinder, to the other, outer die part, which can be driven using an eccentric drive. In order to provide advantageous forging conditions, the forging ingot is formed under heat, first using the forging dies driven by the eccentric drive, in near-surface forge processing with a degree of deformation which is above the critical degree of deformation and which excludes the formation of cracks, and then, with the outer die parts stopped, with the aid of the inner die parts driven by the hydraulic cylinders, in forge pressing with a bite ratio of >0.5.

公开(公告)号：US20210016343A1

公开(公告)日：2021-01-21

申请号：US16322402

申请日：2018-06-14

申请人： Lianhua ZHANG ,  Hui ZHANG

发明人： Lianhua ZHANG ,  Hui ZHANG

IPC分类号： B21J9/12 ,  F15B11/072

摘要： Provided is a high-efficiency transmission free forging hydraulic press and an operation method thereof. The high-efficiency transmission free forging hydraulic press includes: a hydraulic cylinder, a hydraulic pump, and a pressurization energy storage apparatus. By providing two pressurization energy storage apparatuses between the hydraulic pump and the hydraulic cylinder of the high-efficiency transmission free forging hydraulic press, under the effect of a control system, the two pressurization energy storage apparatuses can alternately provide isobaric pressure oil or pressure oil having undergone pressurization to the hydraulic cylinder of the free forging hydraulic press, such that when the hydraulic pump operates in a status with a relatively low pressure, the hydraulic cylinder in the free forging hydraulic press can constantly obtain the isobaric pressure oil or the pressurization pressure oil, achieving the object of storage of surplus energy and high-efficiency transmission of the hydraulic press.

公开(公告)号：US20200180010A1

公开(公告)日：2020-06-11

申请号：US16793958

申请日：2020-02-18

申请人： CELL IMPACT AB

发明人： Anders IVARSON ,  Erika HENRIKSSON ,  Alem BULJUBASIC

IPC分类号： B21J9/20 ,  B30B15/16 ,  B21J13/02 ,  B21J13/06 ,  B21J9/12

摘要： A method of processing a material by use of high kinetic energy comprises a piston driven from a start position by a hydraulic system pressure by a drive chamber, by only one stroke, to transfer high kinetic energy to a blank/tool to be processed, whereafter there is a risk that a rebound of the piston will occur, so a step is taken in connection with said stroke performed, to prevent said piston from making a rebound with an essential content of kinetic energy to avoid negative effects as a result, whereafter the piston is returned to said start position by means of a second chamber, wherein a valve means closes the driving connection between the system pressure and the piston, the valve means is controlled by a pilot valve controlling the entire striking progress, and the second chamber is pressurized with the system pressure during the entire striking progress.

公开(公告)号：US20190217373A1

公开(公告)日：2019-07-18

申请号：US16092871

申请日：2017-03-31

申请人： SMS group GmbH

发明人： Karsten BUSCH ,  Paul-Josef NIESCHWIETZ ,  Frederik KNAUF

IPC分类号： B21J9/12 ,  F15B15/14 ,  F15B11/02

CPC分类号： B21J9/12 ,  F15B11/022 ,  F15B11/036 ,  F15B15/1428 ,  F15B15/1447 ,  F15B2211/428 ,  F15B2211/7055 ,  F15B2211/75 ,  F15B2211/775

摘要： A hydraulic cylinder comprising a cylinder, a piston element movably guided in the cylinder in a working direction and comprising an active surface, and a first opening for feeding a fluid into a cylinder chamber by the active surface. A working pressure of the fluid acting on the active surface drives the piston element in the working direction. The active surface includes a first partial surface and at least one second partial surface, the cylinder chamber being divided into a first sub chamber with the first opening by the first active surface and a second partial surface with a second opening by the second partial surface, and the partial surfaces are hydraulically separated from each other at least in a selectable operating mode.

公开(公告)号：US20170312810A1

公开(公告)日：2017-11-02

申请号：US15524101

申请日：2015-10-29

申请人： JAPAN AEROFORGE, LTD.

发明人： Hiroaki KUWANO ,  Shinya ISHIGAI

IPC分类号： B21J9/12 ,  B30B1/34 ,  B30B15/16 ,  B30B15/22

摘要： A hydraulic forging press machine and a control method, whereby surging of the forging load or dead zones where the forging speed goes to zero is suppressed, and forging is performed with high precision throughout a wider range than the prior art, from low to high load. Pressure cylinders have a main pressure cylinder configured so working fluid is supplied during forging, and secondary pressure cylinders are configured so supplying and stopping of the supply of working fluid thereto are switched in response to the forging load, head-side hydraulic chambers of the secondary pressure cylinders being connected to a head-side hydraulic chamber of the main pressure cylinder via electromagnetic switching valves. Only the main pressure cylinder is used until the forging load exceeds a set load, and the number of secondary pressure cylinders used is sequentially increased as the forging load increases after the forging load exceeds the set load.

公开(公告)号：US20150321244A1

公开(公告)日：2015-11-12

申请号：US14708371

申请日：2015-05-11

申请人： SMS Meer GmbH

发明人： Walter TOTH ,  Johannes Rolf ,  Heinz Kannen ,  Peter Stenger

IPC分类号： B21J9/12 ,  B21J9/02 ,  B21J5/02

CPC分类号： B21J9/12 ,  B21J5/02 ,  B21J5/025 ,  B21J9/022

摘要： A forging press for rotationally asymmetrical parts by warm or hot forming has a stationary press table, a vertically shiftable press ram above the press table, vertically delimiting with the press table a working space, and vertically displaceable between from an upper open position into a lower closed position. An upper part is carried by the ram in the space, and an upper die in the space is in turn carried on the upper part. A lower part sits on the table in the space and below the upper part and carries a lower die in the space and fittable with the upper die in the closed position. A first closing apparatus outside the space bears vertically on one of the dies, and a second closing apparatus outside the space bears vertically via the first closing apparatus on the one die.

摘要翻译： 用于热成形或热成型的旋转不对称部件的锻压机具有固定的压床，压板上方的可垂直移动的压力机压头，在压床上垂直地限定工作空间，并且可在上打开位置之间垂直移动 关闭位置。 上部由冲头在空间中承载，空间中的上模依次在上部承载。 下部位于空间中的桌子上方并且在上部的下方，并且在该空间中承载下模，并且在上模处于关​​闭位置。 空间外的第一关闭装置在其中一个模具上垂直地支撑，并且空间外部的第二关闭装置经由第一关闭装置在一个模具上竖直地承载。

公开(公告)号：US20150042072A1

公开(公告)日：2015-02-12

申请号：US14457026

申请日：2014-08-11

申请人： 792716 Ontario Inc.

发明人： Kevin Kelly

IPC分类号： B21K7/12 ,  B60D1/52 ,  B21J13/03 ,  B21J9/12 ,  B21J5/02

CPC分类号： B60D1/52 ,  B21K21/12

摘要： A die is adapted for forming a cold forged receiver hitch that includes an integral cold forged smooth reinforcing flange at an upper end. The die includes a top plate and a bottom plate spaced apart from the top plate along a plate axis that is perpendicular to the surfaces of the top and bottom plates. The top plate includes two transversely spaced-apart jambs within which the top plate is slidably mounted, an actuation system configured to move the top plate relative to the bottom plate along the plate axis. The bottom plate supports a bottom support plate to which a stationary mandrel is secured and an assembly of two transversely spaced-apart split cams, the split cams being transversely spaced from the stationary mandrel by a distance that is greater than the thickness of the tube out of which the receiver hitch is to be cold forged.

摘要翻译： 模具适于形成在上端包括整体式冷锻的平滑加强凸缘的冷锻接收器钩。 模具包括顶板和底板，其与顶板沿着垂直于顶板和底板的表面的板轴线间隔开。 顶板包括两个横向间隔开的侧板，顶板可滑动地安装在其中，构造成沿板板轴线相对于底板移动顶板的致动系统。 底板支撑底部支撑板，固定的心轴固定到底部支撑板上，以及两个横向间隔开的分离凸轮的组件，分离凸轮与固定心轴横向隔开一定距离，该距离大于管出口的厚度 其中接收器挂钩将被冷锻。

公开(公告)号：US5678446A

公开(公告)日：1997-10-21

申请号：US538051

申请日：1995-10-02

申请人： Shoji Futamura ,  Chikara Murata

发明人： Shoji Futamura ,  Chikara Murata

IPC分类号： B21D22/20 ,  B21D43/05 ,  B21D22/02 ,  B21J9/12

CPC分类号： B21D43/05 ,  B21D22/206

摘要： An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals of mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

摘要翻译： 具有这样的结构的分度进给加工系统，其中，在其上装有多个加工工具的盒体的主体上的多个加工单元可拆卸地安装，其间隔为mP（m为给定正整数，P为工件 - 进给间距）对应于多个加工过程; 通过加工单元在工件的分度进给间距处依次执行加工处理，其中用于驱动加工装置的驱动装置设置在包括任何加工单元的盒中。

公开(公告)号：US5282374A

公开(公告)日：1994-02-01

申请号：US949500

申请日：1992-10-26

申请人： Shinji Kojima ,  Hisakazu Mizota ,  Toshitane Matsukawa ,  Toshio Fujimura ,  Kouichi Kushida ,  Yoshio Yoshimoto ,  Noriaki Inoue

发明人： Shinji Kojima ,  Hisakazu Mizota ,  Toshitane Matsukawa ,  Toshio Fujimura ,  Kouichi Kushida ,  Yoshio Yoshimoto ,  Noriaki Inoue

IPC分类号： B21B15/00 ,  B22D11/12 ,  B21J1/02 ,  B21J9/12 ,  B21J9/18

CPC分类号： B22D11/1206 ,  B21B15/0035

摘要： According to the present invention, in case of continuously forging a cast strand in its final solidification region, in order to forge the cast strand with uniform reduction amounts on front and rear sides of the strand notwithstanding the cast strand is wrapped or floated during movement of the cast strand being drawn from molds, the head end oil chamber and the rod end oil chamber of each of positioning cylinders for adjusting the positions of anvils are connected by means of hydraulic oil passages having a selector valve, and further the hydraulic oil passages connected to the head end oil chambers of the positioning cylinders are connected to each other by means of a first bypass line.

摘要翻译： PCT No.PCT / JP92 / 00207 Sec。 371日期：1992年10月26日 102（e）日期1992年10月26日PCT提交1992年2月26日PCT公布。 公开号WO92 / 14567 日本1992年9月3日。根据本发明，在连续锻造其最终凝固区域中的铸造线材的情况下，为了在钢绞线的前侧和后侧均匀地锻造铸造股线，尽管铸造股线 在从模具拉出的铸造线的运动期间被包裹或浮动，用于调节砧座位置的每个定位缸的头端油室和杆端油室通过具有选择阀的液压油通道连接， 并且进一步通过连接到定位气缸的头端油室的液压油通道通过第一旁通管线相互连接。

公开(公告)号：US4977773A

公开(公告)日：1990-12-18

申请号：US403489

申请日：1989-09-06

申请人： Yoshiki Mito ,  Minoru Sueda ,  Hiroshi Shiota ,  Shozo Tashiro

发明人： Yoshiki Mito ,  Minoru Sueda ,  Hiroshi Shiota ,  Shozo Tashiro

IPC分类号： B21J5/02 ,  B21J9/12 ,  B21J9/20 ,  B21J13/02

CPC分类号： B21J9/20 ,  B21J5/02 ,  B21J9/12

摘要： A double action die set for closed forging to be equipped in a reciprocating press consisting of a stationary base and a slide. Each die is equipped with one set of a metal mold and a punch. A stationary side die is fixedly secured to the stationary base, while a movable side die is fixedly secured to the slide. Each one of the stationary side die and the movable side die comprises therein a metal mold supporting outer piston of hollow shape, a punch supporting inner piston slidably engaged with a hollow space in the outer piston, and a common oil chamber for supporting the outer piston and the inner piston with a same hydraulic pressure.According to this invention such advantages as to reduce the height of the die set and to move the pressurized oil only within the same oil chambers can be obtained.

摘要翻译： 一种用于封闭锻造的双作用模具组装在由固定基座和滑块组成的往复式压力机中。 每个模具都配有一套金属模具和冲头。 固定侧模具固定地固定到固定基座，而可移动侧模具固定地固定到滑块。 固定侧模具和可动侧模具中的每一个包括支撑中空形状的外活塞的金属模具，与外活塞中的中空空间可滑动地接合的冲头支撑内活塞，以及用于支撑外活塞的公共油室 和具有相同液压压力的内活塞。 根据本发明，可以获得这样的优点，即减小模具的高度并且仅在相同的油室内移动加压油。