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公开(公告)号：US5004378A
公开(公告)日：1991-04-02
申请号：US353696
申请日：1989-05-18
申请人： Tatsuo Arai , Katsumi Haga
发明人： Tatsuo Arai , Katsumi Haga
IPC分类号： B23B27/16
CPC分类号： B23B27/1662 , B23B2205/08 , Y10T407/227 , Y10T407/2276 , Y10T407/228 , Y10T407/2282
摘要： The present invention concerns to a clamped cutting tool used in the metalworking field. The clamped cutting tool includes a tool-holder, a shim member placed on the tool-holder, a cutting insert placed on the shim member, and a locking pin held in engagement with the tool-holder for clamping the cutting insert. The tool-holder includes a forward end portion having an insert receving recess formed therein, the recess having a bottom wall and at least one side wall extending upwardly from the bottom wall, the bottom wall including a pin-receiving hole of a circular cross-section formed therein so as to extend downwardly. The shim member has a bore of a circular cross-section formed therethrough, the shim member being disposed on the bottom wall of the recess in such a manner that the bore communicates with and is concentric to the hole of the tool-holder. The cutting insert has an aperture of a circular cross-section formed therethrough, the insert being disposed on the shim member in such a manner that the aperture communicates with the bore of the shim member.
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公开(公告)号：US4687383A
公开(公告)日：1987-08-18
申请号：US845866
申请日：1986-03-28
申请人： Hiroshi Shimomura , Tatsuo Arai
发明人： Hiroshi Shimomura , Tatsuo Arai
CPC分类号： B23C5/2278 , B23C5/207 , B23C2200/0416 , B23C2200/0422 , B23C2200/201 , Y10T407/1922 , Y10T407/1932 , Y10T407/1938 , Y10T407/23 , Y10T407/27
摘要： An insert rotary cutter incldues a cutter body having an axis of rotation therethrough. The cutter body has a plurality of pockets formed in one end thereof in circumferentially distributed relation. A plurality of support members are attached respectively to the pockets. Each of the support members has a recess being open radially and axially outwardly of the cutter body. A plurality of polygonal cutter inserts are positioned respectively in the recesses. The recesses have a depth of one third to two thirds of a thickness of the cutter insert. A plurality of clamp wedges respectively clamp the cutter inserts to the cutter body through the support members.
摘要翻译： 插入式旋转刀具包括具有通过其旋转的轴线的刀具主体。 刀体具有在其一端形成为周向分布关系的多个袋。 多个支撑构件分别附接到凹穴。 每个支撑构件具有沿切割器本体的径向和轴向外侧开口的凹部。 多个多边形切削刀片分别位于凹槽中。 凹槽具有切削刀片的厚度的三分之一至三分之二的深度。 多个夹紧楔分别通过支撑构件将刀具插入件夹紧到切割器本体。
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公开(公告)号：US4308584A
公开(公告)日：1981-12-29
申请号：US102784
申请日：1979-12-12
申请人： Tatsuo Arai
发明人： Tatsuo Arai
摘要： A method and apparatus for controlling a manipulator by establishing polynomials obtained, as the functions of two sets of command values, the one set representing the position and the other set representing the direction respectively of the manipulator hand, by approximating the values of angles of rotation prescribed for the drive mechanisms of the manipulator and the arm of the manipulator, subjecting the aforementioned polynomials to an arithmetic operation in electronic circuitry by use of the aforementioned objective-command values in conjunction with the coefficients of the aforementioned polynomials established in advance by calculation and thereby deriving angular magnitudes for the separate drive mechanisms of the manipulator and controlling the operation of the drive mechanisms based on the angular magnitudes.
摘要翻译： 一种用于通过建立多项式来控制操纵器的方法和装置，作为两组命令值的函数，通过近似旋转角度的值来表示代表位置的一组，表示机械手的方向的另一组 规定为机械手的驱动机构和操纵器的臂，使用前述目标指令值结合前述通过计算建立的多项式的系数对上述多项式进行电子电路中的算术运算，以及 从而导出用于机械手的单独的驱动机构的角度大小并且基于角度量来控制驱动机构的操作。
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公开(公告)号：US5807031A
公开(公告)日：1998-09-15
申请号：US610583
申请日：1996-03-07
申请人： Tatsuo Arai , Takayoshi Saito , Yoshihiko Kimura
发明人： Tatsuo Arai , Takayoshi Saito , Yoshihiko Kimura
CPC分类号： B23C5/202 , B23C2200/085 , B23C2200/125 , B23C2200/326 , B23C2200/361 , Y10T407/23 , Y10T407/235 , Y10T407/24 , Y10T407/245
摘要： The invention is designed to improve a cutting performance and a spiral chip discharging ability. Main cutting edges 16 and auxiliary cutting edges 18 are formed along the respective sides of an upper surface 14 of a negative throw-away tip 12 and along side of bevelled corners, respectively. A rake face 22 of each main cutting edge 16 is gradually inclined toward a lower surface of the tip 12 by an angle of inclination .beta. along the extension of the main cutting edge 16 away from its adjacent auxiliary cutting edge 18 and by a rake angle .alpha. (>.beta.) along a direction perpendicular to the main cutting edge 16. The tip 12 is mounted on a cutter 9 as a rotatable cutting tool so as to discharge spiral chips during cutting. To this end, the tip 12 is mounted such that an axial rake angle, a corner angle, an angle of inclination, and a true rake angle are set in a range of -4.degree. to -10.degree., a range of 25.degree. to 60.degree., a range of 0.degree. or larger, and a range of -20.degree. to -5.degree., respectively.
摘要翻译： 本发明旨在提高切割性能和螺旋切屑放电能力。 主切削刃16和辅助切削刃18分别沿着偏斜刀片12的上表面14的相应侧面和斜边的侧面分别形成。 每个主切削刃16的前刀面22朝着尖端12的下表面逐渐倾斜，沿着主切削刃16的延伸远离其相邻辅助切削刃18的倾斜角β和倾角α （>β）。尖端12安装在作为可旋转切削工具的切割器9上，以便在切割期间排出螺旋切屑。 为此，尖端12被安装成使得轴向前角，角角，倾角和真正前角设置在-4°至-10°的范围内，范围为25°至 60度，0度以上的范围，-20〜-5度的范围。
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公开(公告)号：US5526716A
公开(公告)日：1996-06-18
申请号：US274726
申请日：1994-08-05
申请人： Tatsuo Arai , Takayoshi Saito
发明人： Tatsuo Arai , Takayoshi Saito
CPC分类号： C23C30/00 , C23C8/00 , Y10T407/116 , Y10T407/1904 , Y10T407/1906 , Y10T407/1908 , Y10T407/27
摘要： A cutting tool is disclosed which includes a tool body having a mounting portion to be secured to a machine tool and having a plurality of insert receiving recesses formed therein. A plurality of cutting inserts are releasably attached to the insert receiving recesses, respectively. The tool body has a nitrided hard layer formed on a surface thereof. Furthermore, a clamp member used in the tool preferably has an abutment surface to be held in abutting contact with the insert or other parts and a chip-contacting surface with which cutting chips produced during cutting operation are brought into contact. The chip-contacting surface is defined by a nitriding hard layer formed on a precision-cast unglazed surface, and has a surface which is left without finish-working. Furthermore, a method for producing a cutting tool which includes a tapped hole formed therein and having an inner surface defining an unnitrided portion is disclosed. In this method, a plug is first threaded into the tapped hole. Subsequently, the tool body is subjected to nitriding treatment to form a hard layer on the surface of the tool body, and the plug is subsequently removed from the tool body.
摘要翻译： 公开了一种切削工具，其包括具有固定到机床上并具有形成在其中的多个刀片容纳凹部的安装部分的工具主体。 多个切削刀片分别可释放地附接到刀片容纳凹槽。 工具主体在其表面上形成有氮化的硬质层。 此外，在工具中使用的夹紧构件优选地具有与插入件或其他部件保持抵接的抵接表面和与切割操作期间产生的切屑的切屑接触表面接触。 芯片接触表面由形成在精密铸造的无釉面上的氮化硬质层限定，并且具有没有完成加工的表面。 此外，公开了一种用于制造切削工具的方法，该切削工具包括形成在其中的螺纹孔并且具有限定了不穿透部分的内表面。 在该方法中，首先将螺栓拧入螺纹孔中。 随后，将工具主体进行氮化处理，以在工具主体的表面上形成硬质层，然后将该插头从工具主体中取出。
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公开(公告)号：US5501656A
公开(公告)日：1996-03-26
申请号：US296470
申请日：1994-08-26
申请人： Keiko Homma , Tatsuo Arai
发明人： Keiko Homma , Tatsuo Arai
CPC分类号： A61H1/02 , A61H1/0274
摘要： An apparatus for supporting arm movement is provided that is structurally light and simple, does not cause patients to feel restrained, is capable of controlling arm movements with a large degree of freedom and can effectively help patients to make everyday arm movements under their own volition, and to perform functional exercises.
摘要翻译： 提供了一种支撑手臂运动的装置，结构简单，不会使患者感到束缚，能够以较大的自由度控制手臂运动，并可有效地帮助患者在自己的意愿下进行日常的手臂运动， 并进行功能锻炼。
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公开(公告)号：US5484031A
公开(公告)日：1996-01-16
申请号：US314284
申请日：1994-09-30
申请人： Noriho Koyachi , Hironori Adachi , Tatsuo Arai
发明人： Noriho Koyachi , Hironori Adachi , Tatsuo Arai
IPC分类号： B25J5/00 , B25J13/00 , B25J15/00 , B62D57/032 , B62D57/02
CPC分类号： B62D57/032
摘要： A leg structure for a walking robot includes first and second input links rotatably attached to a robot body, a connecting link connected with the second input link at a point whose position can be varied, and an output link connected at one end with the distal end of the connecting link and connected at an intermediate point thereof with the first input link. When the leg structure is to be converted for use as an arm mechanism, the connecting link and the output link are passed beyond the singular point where they lie on a straight line, whereby the angle between the connecting link and the output link moves through the 180.degree. boundary between the leg and arm operating states and the driving mode of the output link is changed from low speed and high torque to high speed and low torque.
摘要翻译： 用于行走机器人的腿结构包括可旋转地附接到机器人主体的第一和第二输入连杆，在位置可以改变的点处与第二输入连杆连接的连接杆，以及一端与远端连接的输出连杆 并且在其中间点处与第一输入链路连接。 当腿部结构被转换为用作臂机构时，连接链路和输出链路超过它们位于直线上的奇异点，由此连接链路和输出链路之间的角度通过 腿与臂操作状态之间的180°边界和输出连杆的驱动模式从低速和高扭矩改变为高速和低扭矩。
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公开(公告)号：US5476357A
公开(公告)日：1995-12-19
申请号：US217870
申请日：1994-03-25
申请人： Tatsuo Arai
发明人： Tatsuo Arai
IPC分类号： B25J7/00 , B25J15/08 , B25J17/02 , H01L21/027
CPC分类号： B25J7/00 , B25J15/08 , B25J17/0216 , Y10T74/20354
摘要： A micromanipulator comprises a pair of hand modules each of which includes a circular base plate with three connection points, an end-effector consisting of a circular moving plate and a finger attached to the moving plate, the moving plate being disposed above the base plate and having three connection points offset 60 degrees from those of the base plate, six metal links disposed between the base plate and the moving plate, six actuators provided on the six metal links for extending and contracting them, six first metal wire members connected between one end of the six metal links and the three connection points of the base plate so that two wire members are connected with each connection point of the base plate to be inclined in opposite directions, and six second metal wire members connected between the other end of the metal links and the three connection points of the moving plate so that two wire members are connected with each connection point of the moving plate to be inclined in opposite directions.
摘要翻译： 一种显微操纵器包括一对手模块，每个手模块包括具有三个连接点的圆形底板，由圆形移动板和附接到移动板的手指组成的末端执行器，移动板设置在基板上方， 具有与基板偏离60度的三个连接点，设置在基板和移动板之间的六个金属连接件，设置在六个金属连接件上的六个致动器，用于延伸和收缩它们，六个第一金属线构件连接在一端 的六个金属连杆和基板的三个连接点，使得两个线构件与基板的每个连接点连接以相反方向倾斜，并且六个第二金属线构件连接在金属的另一端之间 连杆和移动板的三个连接点，使得两个线构件与移动板的每个连接点连接以倾斜 在相反的方向
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公开(公告)号：US5460464A
公开(公告)日：1995-10-24
申请号：US58940
申请日：1993-05-07
申请人： Tatsuo Arai , Takayoshi Saito
发明人： Tatsuo Arai , Takayoshi Saito
CPC分类号： B23C5/109 , B23C5/202 , B23C2200/085 , B23C2200/125 , Y10T407/235 , Y10T407/245
摘要： A cutting insert has a polygonal plate-like insert body defined by a front face, a back face, and a plurality of side faces lying between the front and back faces. A nose portion is defined by one of the corners of the front face. At least one cutting edge extends immediately from the nose portion. The cutting edge is defined by one of a pair of intersections of the front face with an adjacent pair of side faces sandwiching the nose portion therebetween. The front face includes an inclined surface sloping toward the back face in a direction away from the nose portion, causing each of the pair of intersections to incline toward the back face in a direction away from the nose portion. A breaker is formed on the inclined surface along the intersection of the inclined surface with a side face. The breaker has an inner surface for defining a rake surface portion more positively inclined to the corresponding cutting edge than that defined by the other area of the front face. The front face may be of a tetragonal shape with a pair of inclined surfaces that impart a V-shaped contour when viewed along a diagonal line interconnecting the corners of the front face other than those defining a diagonally-opposite pair of nose portions. A breaker on such an inclined surface may have a trough line inclined to a corresponding cutting edge. The insert body includes side faces each sloping along the thickness of the insert body at different angles between various regions of the side face, these regions corresponding to various locations of the front face where there are or are not inclined surfaces and where there are or are not corresponding cutting edges.
摘要翻译： 切削刀片具有由前表面，后表面和位于前表面和后表面之间的多个侧面限定的多边形板状插入体。 鼻部由前表面的一个角限定。 至少一个切割刃从鼻部立即延伸。 切割刃由前表面与相邻的一对侧面的一对相交中的一个夹着前端部分之间的一个限定。 前表面包括在远离鼻部的方向上朝向后表面倾斜的倾斜表面，使得该对交点中的每一个在远离鼻部的方向上朝向背面倾斜。 沿着倾斜面与侧面的交点形成在倾斜面上的断路器。 断路器具有用于限定前表面部分的内表面，该前表面部分比正面的另一区域限定的相对于切削刃更积极地倾斜。 前表面可以是具有一对倾斜表面的四边形形状，当沿着互连除了正面的角部的对角线之外，赋予V形轮廓，而不是限定对角线对的鼻部部分。 在这种倾斜表面上的断路器可以具有相对于相应切割刃倾斜的槽线。 插入体包括侧面，每个侧面沿着插入体的厚度在侧面的各个区域之间以不同的角度倾斜，这些区域对应于正面的不同位置，其中存在或不是倾斜表面，并且在那里 不对应的切削刃。
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公开(公告)号：US5352067A
公开(公告)日：1994-10-04
申请号：US69417
申请日：1993-06-01
申请人： Tatsuo Arai , Takayoshi Saito
发明人： Tatsuo Arai , Takayoshi Saito
CPC分类号： C23C30/00 , C23C8/00 , Y10T407/116 , Y10T407/1904 , Y10T407/1906 , Y10T407/1908 , Y10T407/27
摘要： A cutting tool is disclosed which includes a tool body having a mounting portion to be secured to a machine tool and having a plurality of insert receiving recesses formed therein. A plurality of cutting inserts are releasably attached to the insert receiving recesses, respectively. The tool body has a nitrided hard layer formed on a surface thereof. Furthermore, a clamp member used in the tool preferably has an abutment surface to be held in abutting contact with the insert or other parts and a chip-contacting surface with which cutting chips produced during cutting operation are brought into contact. The chip-contacting surface is defined by a nitriding hard layer formed on a precision-cast unglazed surface, and has a surface which is left without finish-working. Furthermore, a method for producing a cutting tool which includes a tapped hole formed therein and having an inner surface defining an unnitrided portion is disclosed. In this method, a plug is first threaded into the tapped hole. Subsequently, the tool body is subjected to nitriding treatment to form a hard layer on the surface of the tool body, and the plug is subsequently removed from the tool body.
摘要翻译： 公开了一种切削工具，其包括具有固定到机床上并具有形成在其中的多个刀片容纳凹部的安装部分的工具主体。 多个切削刀片分别可释放地附接到刀片容纳凹槽。 工具主体在其表面上形成有氮化的硬质层。 此外，在工具中使用的夹紧构件优选地具有与插入件或其他部件保持抵接的抵接表面和与切割操作期间产生的切屑的切屑接触表面接触。 芯片接触表面由形成在精密铸造的无釉面上的氮化硬质层限定，并且具有没有完成加工的表面。 此外，公开了一种用于制造切削工具的方法，该切削工具包括形成在其中的螺纹孔并且具有限定了不穿透部分的内表面。 在该方法中，首先将螺栓拧入螺纹孔中。 随后，将工具主体进行氮化处理，以在工具主体的表面上形成硬质层，然后将该插头从工具主体中取出。
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