公开(公告)号：US06601856B2

公开(公告)日：2003-08-05

申请号：US09951075

申请日：2001-09-13

申请人： Erwin Bohler

发明人： Erwin Bohler

IPC分类号： B23B3130

CPC分类号： B23Q11/121 ,  B23B31/16216 ,  B23B2250/12 ,  B23Q1/38 ,  B23Q11/122 ,  Y10T279/12 ,  Y10T279/1291 ,  Y10T279/19

摘要： Moving parts of the chuck are enclosed in a sealed cavity which is provided with a circulating lubrication. The power which drives its flow is derived from the force needed for opening and shutting the tongs of the chuck. In a chuck with hydraulically actuated jaws, this power is delivered by the pressure differences that occur between different parts of the hydraulic circuit actuating the jaws of the chuck and the hydraulic liquid acts also as lubricant.

公开(公告)号：US06182977B2

公开(公告)日：2001-02-06

申请号：US09308495

申请日：1999-07-16

申请人： Hans-Michael Weller

发明人： Hans-Michael Weller

IPC分类号： B23B3130

CPC分类号： B25B5/065 ,  B25B5/147 ,  Y10T279/1024 ,  Y10T279/1029 ,  Y10T279/1216 ,  Y10T403/22

摘要： The clamping apparatus (10) has a clamping ring (13) of an elastomer, which has a U-shaped cross section. The clamping ring (13) is seated in a recess (15) in a holding device (12) having parallel side walls. The recess (50) can be connected via a connecting line (18) to a hydraulic or pneumatic pressure source. The outside of the web part (21) of the U-profile acts as a clamping surface (24). Embedded in the area of this clamping surface is a number of clamping elements (27) made of a material of higher strength, in which at least that envelope line which faces away from the clamping surface (24) is exposed. The clamping elements (27) have the same axial extent as the clamping ring (13). One of the side walls of the recess (15) is formed by a clamping part (31), which is part of a clamping device (36) and is guided axially displaceably on the holding device (12) and is sealed off with respect to the latter by means of a circumferential seal element (34). The clamping part (31) is coupled to a power drive (36) which acts in the axial direction. The clamping apparatus (10) is considered both for external clamping and for the internal clamping of a workpiece.

摘要翻译： 夹紧装置（10）具有弹性体的夹紧环（13），其具有U形横截面。 夹紧环（13）位于具有平行侧壁的保持装置（12）中的凹部（15）中。 凹部（50）可经由连接管线（18）连接到液压或气动压力源。 U形轮廓的腹板部分（21）的外侧作为夹紧表面（24）。 嵌入在该夹紧表面的区域中的是由较高强度的材料制成的多个夹紧元件（27），其中至少离开夹紧表面（24）的包络线被暴露。 夹紧元件（27）具有与夹紧环（13）相同的轴向延伸。 凹部（15）的侧壁之一由夹持部（31）形成，夹持部（31）是夹持装置（36）的一部分，并且在保持装置（12）上被轴向移动地引导并相对于 后者通过周向密封元件（34）。 夹紧部件（31）联接到沿轴向作用的动力驱动器（36）。 夹紧装置（10）被认为是用于外部夹紧和用于工件的内部夹紧。

公开(公告)号：US06270084B1

公开(公告)日：2001-08-07

申请号：US09094808

申请日：1998-06-15

申请人： Oleg Tabachenko ,  Roman Gelfman

发明人： Oleg Tabachenko ,  Roman Gelfman

IPC分类号： B23B3130

CPC分类号： B23B31/16254 ,  Y10T279/12 ,  Y10T279/1208 ,  Y10T279/1224 ,  Y10T279/1291

摘要： A rotary chuck having a chuck body supporting a plurality of clamping jaws for movement between open and closed positions and defining a cylindrical piston chamber containing an axially movable double acting piston coupled to a jaw actuator. A plurality of springs contained within the piston chamber apply biasing force to the piston in one axial direction to urge the jaws toward closed positions. An incrementally adjustable pneumatic control system is operable to apply pressure to the piston in opposition to the springs to reduce the resultant clamping force applied by the jaws in closed position. The control system is also operable to act in consort with the springs to increase the resultant clamping force applied by the jaws in closed position.

摘要翻译： 一种旋转卡盘，其具有支撑多个夹爪的卡盘体，用于在打开和关闭位置之间运动，并且限定圆柱形活塞室，其包含联接到爪致动器的可轴向移动的双作用活塞。 容纳在活塞室内的多个弹簧在一个轴向方向上向活塞施加偏压力，以将夹爪推向关闭位置。 增量可调的气动控制系统可操作以与弹簧相对地施加压力到活塞，以减小钳口在闭合位置施加的合成力。 控制系统还可操作地与弹簧配合起作用，以增加夹爪在闭合位置施加的合成力。

公开(公告)号：US06241258B1

公开(公告)日：2001-06-05

申请号：US09425960

申请日：1999-10-25

申请人： Jacques Roussel

发明人： Jacques Roussel

IPC分类号： B23B3130

CPC分类号： B23B31/302 ,  Y10T279/1208 ,  Y10T279/21

摘要： A method is disclosed of controlling a hydraulic chuck of a rotary machine tool, the chuck clamping a workpiece to be machined and being actuated by a double-acting clamping/unclamping actuator. A clamping pressure controlled in accordance with a clamping pressure set point is applied to at least one chamber of the actuator and the clamping pressure is maintained in the corresponding chamber if the control pressure upstream of the actuator suddenly falls due to a malfunction. The clamping pressure is controlled by a closed loop and is modified in the chamber to disable the aforementioned maintaining of the pressure for a predetermined time period in response to an operator request to modify the clamping force applied to the workpiece. The disabling is being at least equal to the time necessary for the control system to stabilize.

摘要翻译： 公开了一种控制旋转机床的液压卡盘的方法，夹具夹紧待加工的工件并由双作用夹紧/松开致动器致动。 根据夹紧压力设定点控制的夹紧压力被施加到致动器的至少一个腔室，并且如果致动器上游的控制压力由于故障而突然下降，则夹紧压力保持在相应的腔室中。 夹紧压力由闭环控制，并且在腔室中被修改，以响应于操作者要求改变施加到工件上的夹紧力而使压力保持在预定时间段内。 禁用至少等于控制系统稳定所需的时间。

公开(公告)号：US06460862B1

公开(公告)日：2002-10-08

申请号：US09678148

申请日：2000-10-03

申请人： Tokichi Shimizu

发明人： Tokichi Shimizu

IPC分类号： B23B3130

CPC分类号： B23B31/16287 ,  B23B31/16029 ,  B23B31/16108 ,  Y10T279/1291 ,  Y10T279/25

摘要： There is provided a chuck having four radial jaw grooves, two pairs of opposed jaws movably provided in the grooves, a first rotary vane actuator for actuating one pair of the opposed jaws, and a second rotary actuator for actuating the other pair of the opposed jaws, an inlet for admitting fluid into chambers of the actuators, and an outlet for discharging fluid from the chambers. The first and second vane actuators are opearated by the fluid admitted from the one inlet such that the two pairs of opposed jaws are differentially actuated by said first and second rotary vane actuators. The first rotary vane actuator includes a first pressure chamber and the second rotary vane actuator includes a second pressure chamber, in which the first and second pressure chambers are in fluid communication via at least one fluid-conducting path.

摘要翻译： 提供了一种具有四个径向钳口槽的卡盘，两个可移动地设置在槽中的相对的夹爪，用于致动一对相对的夹爪的第一旋转叶片致动器，以及用于致动另一对相对的钳口的第二旋转致动器 用于将流体引入致动器的腔室的入口和用于从腔室排出流体的出口。 第一和第二叶片致动器由从一个入口允许的流体打开，使得两对相对的夹爪由所述第一和第二旋转叶片致动器差分致动。 第一旋转叶片致动器包括第一压力室，并且第二旋转叶片致动器包括第二压力室，其中第一和第二压力室经由至少一个流体传导路径流体连通。

公开(公告)号：US06311987B1

公开(公告)日：2001-11-06

申请号：US09380542

申请日：1999-12-03

申请人： Erkki Rinne ,  Lauri Toikka

发明人： Erkki Rinne ,  Lauri Toikka

IPC分类号： B23B3130

CPC分类号： B23B31/30 ,  B23B31/22 ,  B23B31/305 ,  Y10T279/1029 ,  Y10T279/1216 ,  Y10T403/22 ,  Y10T409/30952

摘要： An arrangement for a hydraulically operated tool holder has a pressurizing system for operating a clamping device for a tool or workpiece. The pressurizing system comprises a movable operating element for pressure generation whereby the movement of the operating element causes a movement of a guideway which has an inclined or end or bend surface with respect to its direction of movement. The guideway coacts with the actuator rolling or sliding at the surface thereof whereby the movement resulting from the movement of the guideway is transmitted to at least one pressure transfer piston in a pressure cylinder. The pressure transfer piston comprises at least one support part for the actuator and a lip seal and coacts with the clamping device.

摘要翻译： 用于液压操作的工具夹具的装置具有用于操作用于工具或工件的夹紧装置的加压系统。 加压系统包括用于压力产生的可移动操作元件，由此操作元件的移动导致相对于其移动方向具有倾斜或端部或弯曲表面的导轨的移动。 导轨与致动器在其表面滚动或滑动共同作用，由此导轨移动所产生的运动被传递到压力缸中的至少一个压力传递活塞。 压力传递活塞包括用于致动器的至少一个支撑部件和唇形密封件并与夹紧装置共同作用。

公开(公告)号：US06834539B2

公开(公告)日：2004-12-28

申请号：US10065385

申请日：2002-10-11

申请人： Bernd Hans Faigle

发明人： Bernd Hans Faigle

IPC分类号： B23B3130

CPC分类号： B23Q17/003 ,  Y10T279/1208

摘要： A rotary machine element has at least one functional part performing movements into stop positions, which stop positions are nominal stop positions or mechanical terminal stop positions and are functionally correlated. At least one position sensor is provided for detecting individual actual position values of the stop positions independently from one another. At least one position sensor is located in a control path between the at least one functional part and an NC control. The control path is active in positions between the nominal stop positions; the mechanical terminal stop positions; or the nominal stop positions and the mechanical terminal stop positions. Based on acquired actual position values of the at least one functional part, the speed and acceleration of the at least one functional part are determined by NC-control.

摘要翻译： 旋转机械元件具有至少一个功能部件，其执行运动到停止位置，停止位置是标称停止位置或机械终端停止位置，并且在功能上相关。 提供至少一个位置传感器用于独立地检测停止位置的各个实际位置值。 至少一个位置传感器位于至少一个功能部件和NC控制器之间的控制路径中。 控制路径在标称停止位置之间的位置有效; 机械终端停止位置; 或标称停止位置和机械终端停止位置。 基于获取的至少一个功能部件的实际位置值，通过NC控制来确定至少一个功能部件的速度和加速度。

公开(公告)号：US06767018B1

公开(公告)日：2004-07-27

申请号：US10064567

申请日：2002-07-26

申请人： Arthur S. Daniels ,  James Pham ,  Ernest L. Baker

发明人： Arthur S. Daniels ,  James Pham ,  Ernest L. Baker

IPC分类号： B23B3130

CPC分类号： F42B1/036 ,  B23Q3/18 ,  B25B11/005 ,  B25B11/007 ,  Y10T82/266 ,  Y10T279/11 ,  Y10T279/3487

摘要： A machinable datum for use in a vacuum fixture is disclosed. The vacuum fixture comprises: a cylindrical stationary mandrel portion having a central cavity therethrough, and comprising: a first end mountable to a machine tool, such as a lathe; a second end terminating in a contact datum intended for contact with a workpiece; and, vacuum means capable of introducing a vacuum into a space between said contact datum and said workpiece; a cylindrical plunger portion residing within said central cavity of said cylindrical stationary mandrel portion, said cylindrical plunger portion comprising: a first end approximately coextensive with said first end of said stationary mandrel portion, comprising a biasing spring; a plunger comprising a cylindrical plunger residing within said central cavity of said cylindrical stationary mandrel portion, and biased away from said first end of said stationary mandrel portion by said biasing spring; and, a second end terminating in a contact datum intended for contact with a workpiece; and wherein at least one of said contact datums are comprised of an easily machinable material which can be shaped to facilitate contact with a workpiece.

摘要翻译： 公开了一种用于真空夹具的可加工基准。 所述真空固定装置包括：圆柱形固定心轴部分，其具有穿过其的中心空腔，并且包括：可安装到诸如车床的机床的第一端; 终止于用于与工件接触的接触基准的第二端; 以及能够将真空引入所述接触基准和所述工件之间的空间的真空装置; 圆柱形柱塞部分位于所述圆柱形固定心轴部分的所述中心空腔内，所述圆柱形柱塞部分包括：与所述固定心轴部分的所述第一端大致共同延伸的第一端，包括偏置弹簧; 柱塞，其包括位于所述圆柱形固定心轴部分的所述中心空腔内的圆柱形柱塞，并且通过所述偏置弹簧偏离所述固定心轴部分的所述第一端; 以及终止于用于与工件接触的接触基准的第二端; 并且其中所述接触基准中的至少一个由易于加工的材料构成，其可被成形为便于与工件接触。

公开(公告)号：US06530578B1

公开(公告)日：2003-03-11

申请号：US09647337

申请日：2000-09-29

申请人： Bo Karl Ragnar Svensson

发明人： Bo Karl Ragnar Svensson

IPC分类号： B23B3130

CPC分类号： B23B31/18 ,  B25B5/087 ,  B25J15/0206 ,  Y10T279/1291 ,  Y10T279/18

摘要： The present invention relates to an arrangement (1) for gripping and holding or releasing a material (M), such as material held in a lathe chuck. The arrangement includes a piston-cylinder assembly (2) and a plurality of material gripping and holding or releasing elements, so-called gripping element arrangements (3). The gripping elements are movable between two positions, an open position and a closed position, in response to movements of the piston-cylinder assembly (2). The cylinder-part (22) of the piston-cylinder assembly (2) includes a circular groove (22a) for co-action with rolling support surfaces (12c) associated with said gripping element arrangement (3). The arrangement also includes a separate gripping member (50) which can be readily fitted to the free end-part (3a) of the gripping element (3′) and readily removed therefrom.

摘要翻译： 本发明涉及一种夹持和保持材料（M）的装置（1），例如保持在车床卡盘中的材料。 该装置包括活塞 - 气缸组件（2）和多个材料夹紧和保持或释放元件，即所谓的夹紧元件装置（3）。 夹紧元件可响应于活塞 - 气缸组件（2）的运动在两个位置（打开位置和关闭位置）之间移动。 活塞 - 气缸组件（2）的气缸部分（22）包括用于与与所述夹紧元件装置（3）相关联的滚动支撑表面（12c）协同作用的圆形凹槽（22a）。 该装置还包括可以容易地装配到抓握元件（3'）的自由端部（3a）并容易从其移除的单独的夹持构件（50）。

公开(公告)号：US06467775B1

公开(公告)日：2002-10-22

申请号：US09577536

申请日：2000-05-24

申请人： Otto Denzinger

发明人： Otto Denzinger

IPC分类号： B23B3130

CPC分类号： B23B31/16212 ,  B23B31/16216 ,  B23B31/16229 ,  Y10T279/1033 ,  Y10T279/1071 ,  Y10T279/1291 ,  Y10T279/1961 ,  Y10T279/25

摘要： A clamping device for objects, has a housing, at least two clamping jaws which is radially displaceably guided relative to a longitudinal central axis, actuating elements associated with the clamping jaws for actuating the latter, clamping pistons displaceable in a cylinder chamber and acted for clamping of the clamping jaws by a pressure medium under pressure at least in one working direction, the actuating element being in operative communication with the clamping piston at least in a working position, at least one central adjusting device displaceably arranged in the housing and acting on the actuating elements, abutment means including an abutment for each of the actuating element against which each of the actuating elements can abut, the actuating elements being formed as angular levers which are turnably held in the housing and engage at one end with associated one of the clamping pistons and on the other hand with an associated one of the clamping jaws.

摘要翻译： 一种用于物体的夹紧装置，具有壳体，至少两个夹钳，其相对于纵向中心轴线径向移动地被引导，与夹爪相关联的致动元件用于致动该夹爪，用于夹紧可在缸室中移动并用于夹紧的活塞 通过压力介质在压力下至少在一个工作方向上的所述夹爪，所述致动元件至少在工作位置与所述夹紧活塞操作连通，所述至少一个中心调节装置可移动地布置在所述壳体中并作用在所述 致动元件，邻接装置包括用于每个致动元件的每个致动元件可邻接的抵靠件，致动元件形成为可转动地保持在壳体中的角度杆，并且在一端与相关联的一个夹紧 另一方面与相关联的一个夹爪。