公开(公告)号：US4826393A

公开(公告)日：1989-05-02

申请号：US83692

申请日：1987-08-07

申请人： Masaharu Miki

发明人： Masaharu Miki

IPC分类号： F04D19/04 ,  F01D1/36

CPC分类号： F04D19/046

摘要： A turbo-molecular pump comprises three distinct stages corresponding to three distinct gas flow regions. The first stage comprises a plurality of stages of alternately arranged rotor blades and stator blades, and operates in a molecular flow region wherein the gas pressure is less than 10.sup.-3 torr. The second stage comprises a first helical groove formed either on the circumference of the rotor or on the circumference of the stator. The second stage is disposed downstream of the first stage and operates in a transition flow region wherein the gas pressure is from 10.sup.-3 to 1 torr. The third stage comprises second and third helical grooves formed respectively on the circumference of the rotor and stator. The third stage is disposed downstream of the second stage and operates in a viscous flow region wherein the gas pressure is greater than 1 torr. An adequate pump compression ratio can be obtained from the ultra-high vacuum region to the low vacuum region so as to significantly widen the pump operation region.

公开(公告)号：US4697994A

公开(公告)日：1987-10-06

申请号：US684126

申请日：1984-12-20

申请人： Tadao Ishizawa ,  Hirofumi Kotaka ,  Masami Kakinuma

发明人： Tadao Ishizawa ,  Hirofumi Kotaka ,  Masami Kakinuma

IPC分类号： F04C23/00 ,  B25J9/00 ,  F04C18/344 ,  F04C25/02

CPC分类号： F04C18/3446

摘要： A multistage discharge type rotary vacuum pump comprises a rotor rotably mounted within a cylinder chamber and dividing the cylinder chamber into first stage and second stage working chambers. A plurality of radially extending vanes are slidably mounted in the rotor in angularly spaced relation, and the vanes undergo radial sliding movement during rotation of the rotor such that the vane tips maintain sliding contact with the cylinder chamber. Each working chamber has an inlet port at the upstream side thereof for admitting exhaust gas evacuated from a confined space during use of the pump, and an outlet port at the downstream side thereof for discharging the exhaust gas which has been compressed in the working chamber in response to rotation of the rotor. The outlet port of the first stage working chamber communicates through a discharge valve with a storage chamber, and the storage chamber communicates through a pressure-responsive discharge valve with the inlet port of the second stage working chamber. The exhaust gas which is discharged from the first stage working chamber is stored in the storage chamber and whenever the gas pressure reaches a predetermined value, the pressure-responsive discharge valve opens to admit the compressed exhaust gas through the inlet port into the second stage working chamber. Such a construction enables miniaturization of the pump structure, a reduction in the driving force for rotationally driving the rotor, and an increased exhaust efficiency of the pump.

摘要翻译： 多级排放式旋转真空泵包括可转动地安装在气缸室内并将气缸室分成第一级和第二级工作室的转子。 多个径向延伸的叶片以角度间隔的关系可滑动地安装在转子中，并且叶片在转子旋转期间经历径向滑动运动，使得叶片尖端保持与气缸室的滑动接触。 每个工作室在其上游侧具有入口，用于允许在使用泵期间从密闭空间排出的废气，以及在其下游侧的出口，用于排出在工作室中被压缩的废气 响应于转子的旋转。 第一级工作室的出口通过具有储存室的排出阀连通，并且储存室通过压力响应性排出阀与第二级工作室的入口连通。 从第一级工作室排出的排气被储存在储存室中，并且每当气体压力达到预定值时，压力响应性排出阀打开，从而将压缩废气通过入口进入第二级工作 房间。 这种结构使得泵结构能够小型化，用于旋转驱动转子的驱动力的降低以及泵的排气效率提高。

公开(公告)号：US4688354A

公开(公告)日：1987-08-25

申请号：US890496

申请日：1986-07-25

申请人： Tetsuya Nagata ,  Osamu Ohashi

发明人： Tetsuya Nagata ,  Osamu Ohashi

IPC分类号： B24B47/02 ,  B23Q1/68 ,  B23Q5/34 ,  B24B5/06 ,  B24B47/04 ,  G05B19/23 ,  B24B49/00

CPC分类号： G05B19/23 ,  B23Q1/68 ,  B23Q5/341 ,  B24B47/04 ,  G05B2219/49287 ,  Y10T74/1667

摘要： A grinder wheel table feed apparatus which converts a rotation of the table driving motor into a reciprocation movement of the grinder wheel table through a ball-screw mechanism and exerts a traverse movement to the table between a stand-by position and a working position. Additionally, a device of the invention converts a rotation of a reciprocation axle drive motor into a reciprocal movement of said table through an eccentric cam, and it also exerts an oscillation operation to the table in its working position. A drive control means of said eccentric cam is comprised of an encoder operable to read a rotation position of the reciprocal axle drive motor and to control same through a control device so as to be effective to stop the eccentric cam at a predetermined angle.

摘要翻译： 研磨轮台进给装置，其通过滚珠丝杠机构将台式驱动电动机的旋转转换成研磨轮台的往复运动，并且在待机位置和工作位置之间进行横向运动。 此外，本发明的装置通过偏心凸轮将往复式轴驱动电动机的旋转转换成所述工作台的往复运动，并且还在工作台的工作位置对工作台进行振荡操作。 所述偏心凸轮的驱动控制装置包括可操作以读取往复驱动马达的旋转位置并通过控制装置控制其的编码器，以有效地将偏心凸轮停止在预定角度。

公开(公告)号：US4471577A

公开(公告)日：1984-09-18

申请号：US337102

申请日：1982-01-05

申请人： Isao Ogawa ,  Masaki Sato ,  Nobuo Morita ,  Takeshi Kobayashi

发明人： Isao Ogawa ,  Masaki Sato ,  Nobuo Morita ,  Takeshi Kobayashi

IPC分类号： B24B5/10 ,  B24B7/10

CPC分类号： B24B5/10

摘要： A double spindle grinding machine has a pair of grinding spindles mounted on feed tables for performing two independent grinding operations. A pair of work spindles for holding workpieces to be ground are rotatably mounted on a supporting frame which undergoes angular displacement in forward and reverse directions through an arc of 180.degree. to alternately position the workpieces held by the two spindles opposite alternate ones of the two grinding spindles. A swing shaft is connected to the supporting frame and is alternately driven in forward and reverse directions to displace the supporting frame to extreme forward and reverse positions so as to alternately position the workpieces in opposed relation to alternate ones of the grinding spindles. A clamping device coacts with the supporting frame to releasably clamp the frame in either extreme position, and the clamping device includes a pair of vertically slidable clamp rods connected through a linkage to a reciprocal fluid motor which effects upward and downward movement of the clamp rods between unclamping and clamping positions. A clamp block is secured to each clamp rod and coacts with a clamp member secured to the supporting frame to releasably clamp the frame in the extreme forward and reverse positions in response to actuation of the fluid motor to drive the clamp rods to the clamping positions.

摘要翻译： 双轴研磨机具有安装在进料台上的一对研磨主轴，用于进行两次独立的研磨操作。 用于保持待研磨工件的一对工作轴可旋转地安装在支撑框架上，该支撑框架在180度的弧度上沿着前后方向进行角位移，以交替地将由两个主轴保持的工件相对于两个研磨中的相互替代 心轴。 摆动轴连接到支撑框架，交替地沿前后方向驱动，以将支撑框架移动到最前进和倒退的位置，以便将工件交替地与相互交替的研磨主轴相对置。 夹紧装置与支撑框架共同作用以将框架可释放地夹紧在任一极限位置，并且夹紧装置包括一对垂直滑动的夹紧杆，其通过联动装置连接到往复流体马达，其将夹紧杆的向上和向下运动 松开和夹紧位置。 夹紧块被固定到每个夹紧杆并与固定到支撑框架上的夹紧构件共同作用，以响应于流体马达的致动将夹具杆可释放地夹紧在极端正向和反向位置以驱动夹紧位置。

公开(公告)号：US4265054A

公开(公告)日：1981-05-05

申请号：US869428

申请日：1978-01-16

申请人： Shohei Ito

发明人： Shohei Ito

IPC分类号： B24B5/10 ,  B24B5/06

CPC分类号： B24B5/10

摘要： An internal grinding machine having two grinding wheel spindles each of which has a grinding wheel for grinding a part of the inner or end surfaces of a workpiece. The workpiece is ground by both the wheels while it is held in a work spindle. The machine includes a wheel carrier assembly comprising a first wheel carrier table slidable in a direction on the machine base and being provided with a dressing infeed mechanism and an infeeding mechanism for the wheel spindle which is to grind the taper or face of the workpiece, and a second wheel carrier table slidable in a proper direction on the first wheel carrier table and having the grinding wheel spindles adjustably mounted thereon. The machine further includes a shift-infeed table having the work spindle thereon. The shift infeed is provided with a dressing infeed mechanism and an infeeding mechanism for the other wheel spindle.

摘要翻译： 一种具有两个砂轮主轴的内磨床，每个砂轮主轴具有用于研磨工件的内表面或端表面的一部分的砂轮。 工件在被保持在工作主轴中时由两个车轮磨削。 该机器包括轮架组件，其包括可在机器基座上沿方向滑动的第一轮承载台，并且设置有用于磨削工件的锥形或面的用于车轮主轴的修整进料机构和进料机构，以及 第二轮承载台，其可在第一车轮承载台上沿适当方向滑动并且可调节地安装在其上的砂轮主轴。 该机器还包括在其上具有工作主轴的换档进给台。 换档进给设有用于另一个车轮主轴的修整进给机构和进给机构。

公开(公告)号：US6030326A

公开(公告)日：2000-02-29

申请号：US90229

申请日：1998-06-04

申请人： Masayuki Azuma ,  Tadashi Adachi

发明人： Masayuki Azuma ,  Tadashi Adachi

IPC分类号： B27B5/30 ,  B27B5/32 ,  B28D5/00 ,  B28D5/02 ,  B23Q3/157

CPC分类号： B28D5/0058 ,  B23Q3/15526 ,  B23Q3/15766 ,  B27B5/30 ,  B27B5/32 ,  B28D5/022 ,  Y10T483/1733 ,  Y10T483/1736 ,  Y10T483/1755 ,  Y10T83/9379

摘要： An automatic blade changing system of a dicing machine uses a blade which is fixed to an auxiliary stopper member provided with a thread which is engaged with a thread of a spindle. The automatic blade changing system consists of two blade holding means which hold the blade to which the stopper member is fixed and rotate the blade relatively to the spindle in the state wherein the blade is forced to the spindle, a blade accommodating means which accommodates a blade to replace the blade, a moving means for moving the blade holding means between the end of the spindle and the blade accommodating means.

摘要翻译： 切割机的自动切刀切换系统使用固定在辅助止挡部件上的刀片，该辅助止动部件具有与主轴的螺纹接合的螺纹。 自动刀片更换系统由两个刀片保持装置组成，刀片保持装置将刀片保持固定到止动件上并在叶片被迫向主轴的状态下相对于主轴旋转刀片容纳装置， 以更换刀片，用于使刀片保持装置在主轴的端部和刀片容纳装置之间移动的移动装置。

公开(公告)号：US5988075A

公开(公告)日：1999-11-23

申请号：US894111

申请日：1997-08-12

申请人： Shigehiro Arai ,  Javad Akbari

发明人： Shigehiro Arai ,  Javad Akbari

IPC分类号： B23Q1/52 ,  A47B85/00

CPC分类号： B23Q1/52

摘要： A swiveling table apparatus comprises a base and a table main body disposed on the base and mounted for swiveling movement about a swivel axis. A driving mechanism includes a servo motor for generating a driving power to swivel the table main body about the swivel axis. A power transmission mechanism transmits the driving power of the servo motor to the table main body.

摘要翻译： PCT No.PCT / JP95 / 01921 Sec。 371日期：1997年8月12日 102（e）日期1997年8月12日PCT提交1995年9月25日PCT公布。 公开号WO96 / 24461 日期1996年8月15日旋转台装置包括基座和设置在基座上的桌子主体，其安装成围绕旋转轴线旋转运动。 驱动机构包括用于产生驱动力的伺服电动机，以使台主体围绕旋转轴线旋转。 动力传递机构将伺服马达的驱动力传递到台主体。

公开(公告)号：US5984501A

公开(公告)日：1999-11-16

申请号：US823213

申请日：1997-03-24

申请人： Katsura Tomotaki ,  Shinichi Nomura ,  Heung Chul Shin

发明人： Katsura Tomotaki ,  Shinichi Nomura ,  Heung Chul Shin

IPC分类号： B23Q5/28 ,  B23Q16/00 ,  G05D3/00 ,  H01L21/68 ,  H01L41/09

CPC分类号： H02N2/021 ,  H02N2/06

摘要： A positioning system comprises a feeding mechanism having three or more feeding units disposed in a moving direction of a moving body. Each of the feeding units has first and second moving elements for clamping and unclamping the moving body, feeding the moving body in the moving direction from an initial position to a target position, and returning the moving body to the initial position. A memory device stores preselected phase and amplitude values of the first and second moving elements. A calculating device calculates phase and amplitude command values for the first and second moving elements based on the phase and amplitude values stored in the memory device. An output device outputs driving command values to the first and second moving elements based on the calculation result of the calculating device. A control device controls the feeding units to clamp the moving body by all of the feeding units after the moving body has been moved to the target position.

摘要翻译： 定位系统包括具有沿移动体的移动方向设置的三个或更多个进给单元的进给机构。 每个馈送单元具有用于夹紧和松开移动体的第一和第二移动元件，将移动体沿着移动方向从初始位置馈送到目标位置，并将移动体返回到初始位置。 存储器件存储第一和第二移动元件的预选相位和振幅值。 计算装置基于存储在存储装置中的相位和幅度值来计算第一和第二移动元件的相位和幅度指令值。 输出装置基于计算装置的计算结果向第一和第二移动元件输出驱动指令值。 在移动体移动到目标位置之后，控制装置控制进给单元将所有进给单元夹紧移动体。

公开(公告)号：US5980192A

公开(公告)日：1999-11-09

申请号：US57989

申请日：1993-05-05

申请人： Shigehiro Arai

发明人： Shigehiro Arai

IPC分类号： B23Q5/40 ,  B23Q5/44 ,  B65G35/00

CPC分类号： B23Q5/408

摘要： A table feeder apparatus comprises a base, a feed screw rotatably supported on the base and a motor for rotating the feed screw about a feed axis. A feed nut is mounted on the feed screw and a block is mounted integrally with the feed nut. A table is disposed on the block for movement along the feed axis. In one aspect, a slide mechanism is disposed between the block and the table. The slide mechanism is slidable in at least one of a horizontal direction and a vertical direction transverse to the feed axis. During movement of the table, the slide mechanism slides to absorb a force applied to the feed nut, tending to displace the block and table in a direction transverse to the feed axis, to prevent the applied force from being transmitted to the table. In another aspect, the table is provided with an opening in which a table portion is removably fitted. Removal of the table portion facilitates maintenance of the slide mechanism without requiring the entire table feeder structure to be dismantled.

摘要翻译： 桌子进给装置包括基座，可旋转地支撑在基座上的进给螺杆和用于围绕进给轴线旋转进给螺杆的马达。 进料螺母安装在进料螺杆上，一个块与进料螺母一体安装。 一个工作台设置在块体上，用于沿进给轴线移动。 在一个方面，滑块机构设置在块和台之间。 滑动机构能够在横向于进给轴的水平方向和垂直方向中的至少一个中滑动。 在工作台移动期间，滑动机构滑动以吸收施加到进给螺母的力，倾向于在横向于进给轴线的方向上移动块和台，以防止施加的力传递到工作台。 在另一方面，桌子设置有开口，桌子部分可拆卸地安装在该开口中。 拆卸工作台部件有助于维护滑动机构，而不需要拆卸整个工作台进给器结构。

公开(公告)号：US5880549A

公开(公告)日：1999-03-09

申请号：US750167

申请日：1997-01-16

申请人： Akira Chiba ,  Tadashi Fukao ,  Chikara Michioka

发明人： Akira Chiba ,  Tadashi Fukao ,  Chikara Michioka

IPC分类号： H02K3/28 ,  H02K7/09 ,  H02K19/10 ,  H02K29/00 ,  H02P25/08 ,  H02K19/06

CPC分类号： H02P25/08 ,  F16C32/0444 ,  F16C32/0497 ,  H02K19/103 ,  H02K7/09 ,  H02K3/28

摘要： This invention relates to a switched reluctance rotator according to which a rotor can be rotated at a high speed without generating electromagnetic vibration at a rotating shaft and in which a current for generating of torque and a current for generating a radial force are passed through windings on the protruding poles of the stator or a winding for generating torque, and a winding for generating a radial force are wound on the protruding poles of the stator.

摘要翻译： PCT No.PCT / JP96 / 00860 Sec。 371日期1997年1月16日 102（e）日期1997年1月16日PCT 1996年3月29日PCT公布。 WO96 / 35257 PCT出版物 日本特开1996年11月7日本发明涉及一种开关磁阻转子，其中转子可以高速旋转而不会在旋转轴上产生电磁振动，并且其中产生用于产生转矩的电流和用于产生径向力的电流 通过定子的突出极上的绕组或用于产生转矩的绕组，并且用于产生径向力的绕组缠绕在定子的突出极上。