公开(公告)号：US6123341A

公开(公告)日：2000-09-26

申请号：US34367

申请日：1998-03-04

申请人： Masaru Oki ,  Muneki Hiraoka

发明人： Masaru Oki ,  Muneki Hiraoka

IPC分类号： B23B31/16 ,  B23B31/177 ,  B23B31/30 ,  B23B5/22

CPC分类号： B23B31/16287 ,  B23B31/16254 ,  B23B31/16275 ,  Y10T279/1291 ,  Y10T279/22 ,  Y10T279/26 ,  Y10T279/29

摘要： A chuck assembly which can chuck thin and brittle workpieces that differ widely in size with high accuracy and reliability without warping them. The chuck assembly includes a tubular chuck body having three first cylinders and a plurality of second cylinders arranged along a circumference in a plane perpendicular to the axis of the chuck body at equal angular intervals. The cylinders have pistons adapted to protrude under oil pressure. The three first cylinders are also arranged at equal angular intervals. The chuck assembly further includes a pressure-biasing means for applying, independently of the oil pressure, pressure to the pistons of the first cylinders against a workpiece, so that the piston are less likely to be retracted by the reaction force from the workpiece. That is, this chuck assembly has a self-centering function.

摘要翻译： 一种卡盘组件，其可以夹紧具有高精度和可靠性的尺寸不同的薄而脆的工件，而不会使它们翘曲。 卡盘组件包括具有三个第一气缸和多个第二气缸的管状卡盘体，多个第二气缸以相等的角度间隔沿垂直于卡盘体的轴线的平面沿圆周布置。 气缸具有适于在油压下突出的活塞。 三个第一气缸也以相等的角度间隔布置。 卡盘组件还包括压力偏置装置，用于独立于油压，将压力施加到第一气缸的活塞抵靠工件，使得活塞不太可能通过来自工件的反作用力而缩回。 也就是说，该卡盘组件具有自定心功能。

公开(公告)号：US06394467B1

公开(公告)日：2002-05-28

申请号：US09588199

申请日：2000-06-06

申请人： Masaru Oki ,  Muneki Hiraoka

发明人： Masaru Oki ,  Muneki Hiraoka

IPC分类号： B23B31163

CPC分类号： B23B31/1253 ,  Y10T279/18 ,  Y10T279/33

摘要： A retractable chuck has a housing adapted to be fastened to a spindle of a lathe, a plurality of shafts mounted in the housing and having proximate ends near the lathe adapted to be coupled to a drawbar of the lathe, and jaws each fastened to one of the shafts. The shafts are formed with a guide groove and guide pins fixed to the housing are received in one of the guide grooves. Each of the grooves has a first portion extending parallel to the central axis of the respective shaft, and a second portion extending obliquely with respect to the central axis of the shaft from one end of the first portion near the lathe toward the proximate end of the chuck. This makes it possible to clamp a stepped workpiece.

摘要翻译： 可伸缩卡盘具有适于紧固到车床的心轴的壳体，安装在壳体中的多个轴，并且具有适于联接到车床的牵引杆的靠近车床的近端，以及夹紧件 轴。 轴形成有引导槽，并且固定到壳体的引导销被容纳在一个引导槽中。 每个凹槽具有平行于相应轴的中心轴线延伸的第一部分，以及相对于轴的中心轴线倾斜地延伸的第二部分，该第二部分从车床的第一部分的一端朝向车床的近端延伸 卡盘 这使得夹紧阶梯式工件成为可能。

公开(公告)号：US20120319364A1

公开(公告)日：2012-12-20

申请号：US13581327

申请日：2011-02-10

申请人： Masaru Oki ,  Muneki Hiraoka

发明人： Masaru Oki ,  Muneki Hiraoka

IPC分类号： B23B31/30

CPC分类号： B23B31/16287 ,  B23B31/1207 ,  B23B2215/08 ,  B23B2231/22 ,  Y10T279/1021

摘要： A chuck assembly for a light alloy wheel is used with a lathe for machining a workpiece, and includes: a chuck body fixed to be coaxial with a lathe spindle; a flexible power chuck including radially extending first second cylinder chambers located on first and second sectional surfaces, respectively, of the chuck body perpendicular to a chuck body axis along outer peripheries of the first and second sectional surfaces, respectively, and pistons received in the first and second cylinder chambers, the pistons being moveable by fluid pressure to grip the inner surface of the rim member in a compensating manner; and a retracting chuck to grip and center the hub mounting portion, and then pull the disk portion to press against a reference surface of the chuck body, whereby the lathe can machine an entire radially outer surface of the rim member.

摘要翻译： 一种用于轻合金车轮的卡盘组件与用于加工工件的车床一起使用，并且包括：固定成与车床主轴同轴的卡盘体; 柔性动力卡盘，包括分别位于卡盘主体的第一和第二截面上的径向延伸的第一第二气缸室，其分别沿着第一和第二截面的外周垂直于夹盘主体轴线，并且活塞接收在第一和第二截面 和第二气缸室，所述活塞可通过流体压力移动，以补偿方式夹紧所述轮辋构件的内表面; 以及夹紧并使轮毂安装部中心的缩回卡盘，然后拉动盘部以压靠卡盘主体的基准面，由此车床可以加工轮缘构件的整个径向外表面。

公开(公告)号：US4833955A

公开(公告)日：1989-05-30

申请号：US124022

申请日：1987-11-23

申请人： Masaru Oki ,  Muneki Hiraoka

发明人： Masaru Oki ,  Muneki Hiraoka

IPC分类号： B23B31/16 ,  B23Q3/12

CPC分类号： B23B31/16 ,  B23Q3/12 ,  Y10T279/19 ,  Y10T82/2552

摘要： A chuck mounting arrangement includes a chuck mounting unit fixed to the head of a spindle of a lathe and having a plurality of jaws and a scroll plate for radialy moving the jaws inwardly and outwardly. A power chuck selected from various types is inserted into the chuck mounting unit so that its adaptor will be clamped by the jaws. The scroll plate is then turned manually to move the jaws inwardly into engagement with the recessed portion formed at the rear of the adaptor. Thus the power chuck is fastened to the spindle. A drawbar mounted in the hollow spindle is provided at its front end with a joint member having its front end splitted into a plurality of joint pieces which are adapted to spread open when moving forward with their own resilience and to be pushed inwardly by a clamping sleeve provided therearound when being retracted. When the power chuck is fixed to the spindle by the chuck mounting unit, the joint pieces grip a chuck control shaft projecting from the rear end of the power chuck. The drawbar is then retracted to pull therewith the control shaft, thus moving the chuck jaws linked with the control shaft inwardly to hold firmly the work to be machined.

摘要翻译： 卡盘安装装置包括固定到车床的主轴头部的卡盘安装单元，并且具有多个夹爪和用于向内和向外径向移动夹爪的涡旋板。 从各种类型选择的动力卡盘插入卡盘安装单元中，使其适配器将被夹爪夹紧。 然后手动旋转涡旋板以将夹爪向内移动，以与形成在适配器后部的凹部接合。 因此，动力卡盘固定在主轴上。 安装在中空心轴上的牵引杆在其前端设置有接头构件，该接头构件的前端分开成多个接头件，该多个接头件适于当以其自身的弹性向前移动并且通过夹紧套筒向内推动时展开 在收回时提供。 当通过卡盘安装单元将动力卡盘固定到主轴上时，接合件夹紧从动力卡盘的后端突出的卡盘控制轴。 然后将牵引杆缩回以与其一起拉动控制轴，从而将与控制轴连接的卡盘爪向内移动以牢固地保持待加工的工件。