公开(公告)号：US5303512A

公开(公告)日：1994-04-19

申请号：US902822

申请日：1992-06-23

Applicant: Toshio Tsujiuchi ,  Tomoyasu Imai ,  Norio Ohta ,  Yukio Oda ,  Ryohei Mukai ,  Hisashi Nakamura ,  Takayuki Yoshimi

Inventor： Toshio Tsujiuchi ,  Tomoyasu Imai ,  Norio Ohta ,  Yukio Oda ,  Ryohei Mukai ,  Hisashi Nakamura ,  Takayuki Yoshimi

IPC: B24B1/00 ,  B24B5/01 ,  B24B5/04 ,  B24B49/03 ,  B24B49/04 ,  B24B49/16

CPC classification number: B24B1/00 ,  B24B49/03 ,  B24B49/04 ,  B24B5/01 ,  B24B5/04

Abstract: A method and apparatus for grinding a cylindrical surface of a workpiece by a traverse movement of a grinding wheel having a relatively narrow grinding surface. To improve the cylindricity of cylindrical surface, the traverse grinding is divided into a rough traverse grinding and a finish traverse grinding. In the rough traverse grinding, a traverse girding is carried out with a large depth of cut which would causes a deterioration of the cylindricity at one end of the cylindrical surface. In the finish traverse grinding, a traverse girding is carried out with a small depth of cut to improve the cylindricity. In another embodiment, one of grinding conditions such as the traverse speed of the grinding wheel, the rotational speed of the workpiece and the peripheral speed of the grinding wheel is changed when the grinding wheel approaches an end of the cylindrical surface at which the traverse grinding ends so as to make the grinding force constant, thereby improving the cylindricity of the cylindrical surface. In other embodiments, the position of the wheel head is compensated based upon the measured diameter of the cylindrical surface so that the entire area of the cylindrical surface has a desired diameter. This compensation also improves the cylindricity of the cylindrical surface.

Abstract translation: 一种用于通过具有相对窄的研磨表面的砂轮的横移来研磨工件的圆柱形表面的方法和装置。 为了提高圆柱面的圆柱度，横向磨削分为粗加工磨削和精加工磨削。 在粗加工研磨中，以大的切割深度进行横向加工，这将导致圆柱形表面的一端的圆柱度的劣化。 在精加工磨削中，以较小的切削深度进行横向加工以提高圆柱度。 在另一个实施例中，当研磨轮接近圆形表面的端部时，磨削条件（诸如砂轮的横动速度），工件的转速和砂轮的圆周速度之一变化， 使磨削力保持恒定，从而提高圆筒面的圆筒度。 在其他实施例中，基于圆柱形表面的测量直径来补偿轮头的位置，使得圆柱形表面的整个区域具有期望的直径。 该补偿也提高了圆柱面的圆柱度。

公开(公告)号：US4873793A

公开(公告)日：1989-10-17

申请号：US92689

申请日：1987-09-03

Applicant: Hiroaki Asano ,  Toshio Tsujiuchi ,  Takao Yoneda ,  Nobuhiro Ishihara ,  Toshio Maruyama ,  Norio Ohta

Inventor： Hiroaki Asano ,  Toshio Tsujiuchi ,  Takao Yoneda ,  Nobuhiro Ishihara ,  Toshio Maruyama ,  Norio Ohta

IPC: G05B19/18 ,  G05B19/23

CPC classification number: G05B19/232 ,  G05B19/184 ,  G05B2219/41177 ,  G05B2219/41186 ,  G05B2219/50057 ,  G05B2219/50211

Abstract: A numerically controlled machine tool for machining a non-circular workpiece according to profile data. The servomotor drive unit of the machine tool includes a frequency voltage converter which outputs a velocity compensation signal proportional to the frequency of position command pulses in the servomotor drive units. A position error signal is modulated by the velocity compensation signal. The numerical controller of the machine tool can measure the position error and phase error, and can compensate for these errors. The numerical controller operates according to ideal profile data and measures the actual position change of a tool slide corresponding to the angle position change of a main spindle. Then, the numerical controller calculates the position error and phase error depending on the actual position change and ideal profile data, and produces execution profile data which are compensated for position error. During machining operation, the numerical controller offsets the rear out position of the execution profile data by the calculated phase error so as to eliminate the phase error.

公开(公告)号：US4706415A

公开(公告)日：1987-11-17

申请号：US878799

申请日：1986-06-26

Applicant: Hiroshi Okada ,  Toshio Tsujiuchi ,  Tadashi Ogasawara

Inventor： Hiroshi Okada ,  Toshio Tsujiuchi ,  Tadashi Ogasawara

IPC: B23Q5/34 ,  B23Q1/00 ,  B23Q5/22 ,  G05B19/408 ,  B24B49/00

CPC classification number: B23Q1/0009 ,  G05B19/408 ,  G05B2219/24158 ,  G05B2219/35459 ,  Y10S82/905 ,  Y10T82/2502

Abstract: An operator's panel for a numerical controller of a grinding machine comprises a main frame of a generally box shape, which is carried on a front portion of a bed of the grinding machine for pivotal movement about a horizontal axis. A manual pulse generator for supplying the numerical controller with pulse signals is mounted in the main frame, and a manual feed handle is secured to an input shaft of the pulse generator. A mechanism is further provided for locking the main frame at such an angular position as desired by an operator of the grinding machine.

Abstract translation: 用于磨床的数值控制器的操作面板包括大致箱形的主框架，该主框架承载在磨床的床的前部，用于围绕水平轴线枢转运动。 手动脉冲发生器用于向数字控制器提供脉冲信号，安装在主机架上，手动进给手柄固定在脉冲发生器的输入轴上。 还提供了一种用于将主框架锁定在研磨机的操作者所期望的如此角度的位置处的机构。

公开(公告)号：US4700483A

公开(公告)日：1987-10-20

申请号：US857161

申请日：1986-04-29

Applicant: Toshio Tsujiuchi ,  Yasuo Niino

Inventor： Toshio Tsujiuchi ,  Yasuo Niino

IPC: B23Q17/22 ,  B24B47/22 ,  G01B3/00 ,  G01B21/02 ,  G01B11/02

CPC classification number: B23Q17/22 ,  B24B47/22 ,  G01B3/002

Abstract: A device for detecting the position of a wheel head of a grinding machine is provided with a housing secured to the wheel head and a support rod secured at its opposite ends to a stationary base in parallel relation with the moving direction of the wheel head. The support rod passes through the housing at a pair of holes formed on opposite end walls of the housing. A linear scale is secured to the housing within the housing, and a scanning unit is fixed on the support rod within said housing for reading scale gratings on the linear scale when the housing is moved bodily with the wheel head relative to the support rod.

Abstract translation: 用于检测研磨机的轮头位置的装置设置有固定到轮头的壳体和在其相对端固定到固定基座的支撑杆，该固定基部与轮头的移动方向平行。 支撑杆通过形成在壳体的相对端壁上的一对孔穿过壳体。 线性刻度固定在外壳内的外壳上，扫描单元固定在所述壳体内的支撑杆上，用于当外壳与轮头相对于支撑杆身体移动时，在线性刻度上读取刻度格栅。

公开(公告)号：US3945692A

公开(公告)日：1976-03-23

申请号：US515329

申请日：1974-10-16

Applicant: Toshio Tsujiuchi

Inventor： Toshio Tsujiuchi

IPC: F16C39/04 ,  F16C32/06 ,  F16C29/00

CPC classification number: F16C32/0659

Abstract: A high rigidity fluid bearing adapted to rotatably support a rotary shaft on a stationary base and a method for manufacturing the same. The fluid bearing is provided with a bearing bushing which includes a plurality of fluid pockets spaced apart in the circumferential direction, a land portion surrounding the fluid pockets, throttles connected respectively to the fluid pockets, and a raised land formed in each of the fluid pockets. On the bearing bushing, a deformable portion is formed around the raised land. The bearing bushing is urged and fixed to an arbor inserted therein and having a diameter smaller than that of the bore thereof at one end of each raised land so as to form a wedge-shape clearance between the raised land and the arbor. The outer periphery of the bearing bushing fixed to the arbor is machined to a true or proper circle. After removed from the arbor, the bearing bushing is fitted to the stationary base. Each raised land is then arranged so as to protrude toward the outer periphery of the rotary shaft, inserted to the bearing bushing beyond the surface of the land portion to thereby form the wedge-shape clearance to bring a high rigidity to the fluid bearing.

Abstract translation: 适用于将旋转轴可旋转地支撑在固定基座上的高刚性流体轴承及其制造方法。 流体轴承设置有轴承衬套，其包括在圆周方向上间隔开的多个流体袋，围绕流体袋的平台部分，分别连接到流体袋的节流阀，以及形成在每个流体袋中的凸起部分 。 在轴承衬套上，围绕升高的陆部形成可变形部分。 轴承衬套被推压并固定到插入其中的心轴上，并且其直径小于每个凸起部分的一端处的孔的直径，以便在凸起部分和心轴之间形成楔形间隙。 固定到心轴的轴承衬套的外周被加工成真正或正确的圆。 从心轴上取下后，轴承衬套安装在固定底座上。 然后将每个凸起的凸起布置成朝向旋转轴的外周突出，并插入轴承衬套超过陆部的表面，从而形成楔形间隙，以使流体轴承具有高刚性。

公开(公告)号：US4967515A

公开(公告)日：1990-11-06

申请号：US381974

申请日：1989-07-19

Applicant: Toshio Tsujiuchi ,  Norio Ohta ,  Masatomo Yoshimura

Inventor： Toshio Tsujiuchi ,  Norio Ohta ,  Masatomo Yoshimura

IPC: B24B47/25 ,  B24B47/22 ,  G05B19/416

CPC classification number: G05B19/4166 ,  G05B2219/37405 ,  G05B2219/41177 ,  G05B2219/45161

Abstract: A numerical control grinding machine, in which rough grinding and finish grinding wheels are used to machine a workpiece into a predetermined shape. A sensor detects the finish grinding wheel contacting the workpiece surface when shifting from the rough grinding to finish grinding operations and determines its position. The numerical controller of the grinding machine calculates the difference between actual and theoretical sizes of the workpiece and completion of the rough grinding operation based on the finish grinding wheel position. After that, the controller compensates the rough grinding wheel position in the next machining cycle for the difference calculated by the controller.

公开(公告)号：US4711054A

公开(公告)日：1987-12-08

申请号：US924777

申请日：1986-10-30

Applicant: Toshio Tsujiuchi ,  Yoshinori Shinmura ,  Yukio Oda

Inventor： Toshio Tsujiuchi ,  Yoshinori Shinmura ,  Yukio Oda

IPC: B24B5/04 ,  B24B47/20 ,  B24B49/00 ,  G05B19/416 ,  B24B49/02

CPC classification number: G05B19/4166 ,  B24B41/065 ,  B24B5/04

Abstract: In a numerical control grinding machine using a grinding wheel made of cubic boron nitride, a computerized numerical controller controls the infeed movement of a wheel head to effect a rough grinding and a first fine grinding on a rotating cylindrical workpiece by the grinding wheel and to halt the first fine grinding in response to a sizing signal from a sizing device which measures the diameter of the workpiece being ground. At the halt of the first fine grinding, the numerical controller advances rest jaws to press the workpiece upon the grinding wheel until another sizing signal is issued from the sizing device. Until the number of the workpieces ground after each truing operation reaches a predetermined number, the numerical controller increase the infeed rate of the grinding wheel in each of the rough and first fine grindings toward a desired infeed rate on a step-by-step basis. Further, the numerical controller diminishes a set size which determines the time point to issue the first-mentioned sizing signal from the sizing device, toward a desired set size on a step-by-step basis with the increases in number of the workpiece ground after each truing.

Abstract translation: 在使用由立方氮化硼制成的砂轮的数控磨床中，计算机化数值控制器控制砂轮头的进料运动，以通过砂轮对旋转的圆柱形工件进行粗磨和第一次细磨，并停止 响应于来自测量被研磨的工件的直径的施胶装置的施胶信号的第一次细研磨。 在第一次精细磨削停止时，数字控制器前进静止爪，将工件压在砂轮上，直到从定型装置发出另一个尺寸信号。 在每次修整操作达到预定数量之后研磨的工件数量之前，数值控制器将粗磨和第一细磨中的每个粗磨中的砂轮的进料速率逐步地朝着期望的进给速度增加。 此外，数字控制器减小设定的尺寸，该设定尺寸决定了从尺寸调节装置发出首先提到的尺寸信号的时间点，随着工件接地数量的增加而逐步地朝向期望的设定尺寸 每个修饰。

公开(公告)号：US4497140A

公开(公告)日：1985-02-05

申请号：US403509

申请日：1982-07-12

Applicant: Tsuyoshi Koide ,  Toshio Maruyama ,  Toshio Tsujiuchi

Inventor： Tsuyoshi Koide ,  Toshio Maruyama ,  Toshio Tsujiuchi

IPC: B24B19/09 ,  B24B19/12 ,  B24B17/02

CPC classification number: B24B19/12

Abstract: A cam grinding machine for grinding a cam in accordance with the profile of a master cam (6). The machine is equipped with an apparatus for substantially compensating lift error of the cam due to grinding wheel wear, said apparatus being provided with a planetary gear mechanism (30) so as to change a large diameter roller (22) contacting the master cam (6) into a small diameter roller (23) when the grinding wheel diameter is reduced.

Abstract translation: PCT No.PCT / JP82 / 00082 Sec。 371日期1982年7月12日 102（e）日期1982年7月12日PCT提交1982年3月27日PCT公布。 出版物WO82 / 03592 日期：1982年10月28日。一种用于根据主凸轮（6）的轮廓研磨凸轮的凸轮磨床。 该机器配备有用于基本上补偿由于砂轮磨损引起的凸轮升力误差的装置，所述装置设置有行星齿轮机构（30），以便改变与主凸轮（6）接触的大直径辊（22） ）当砂轮直径减小时成小直径辊（23）。

公开(公告)号：US4262454A

公开(公告)日：1981-04-21

申请号：US44654

申请日：1979-06-01

Applicant: Wataru Iida ,  Toshio Tsujiuchi ,  Shintaro Ishikawa

Inventor： Wataru Iida ,  Toshio Tsujiuchi ,  Shintaro Ishikawa

IPC: B24B19/12

CPC classification number: B24B19/125 ,  Y10T409/305824

Abstract: A workpiece rotational speed controller having a pulse counter responsive to a pulse signal generated from a pulse generator for indicating the actual angular position of a cam shaft during grinding on a cam grinding machine and a comparator for comparing a count value of the counter with any one of set values which are set in a plurality of digital switches to designate respective speed change positions. A region detection counter is further provided, which counts any coincidence signal from the comparator so as to enable a command voltage generator to apply to a servomotor for cam shaft drive a command voltage that changes step by step in correspondence to the region detection counter output. This counter output is also applied to a gate circuit, which is thus enabled to selectively apply the set values of the digital switches to the comparator.

Abstract translation: 一种工件转速控制器，其具有响应于脉冲发生器产生的脉冲信号的脉冲计数器，用于在凸轮磨床上研磨期间指示凸轮轴的实际角度位置，以及用于将计数器的计数值与任一个 设置在多个数字开关中以设定各个变速位置的设定值。 进一步提供区域检测计数器，其对来自比较器的任何符合信号进行计数，以便能够使指令电压发生器向伺服马达施加凸轮轴驱动，该指令电压相应于区域检测计数器输出逐步改变。 该计数器输出也被施加到门电路，从而能够选择性地将数字开关的设定值应用于比较器。

公开(公告)号：US4122635A

公开(公告)日：1978-10-31

申请号：US841106

申请日：1977-10-11

Applicant: Hiroaki Asano ,  Toshio Tsujiuchi

Inventor： Hiroaki Asano ,  Toshio Tsujiuchi

IPC: B24B49/18

CPC classification number: B24B49/18

Abstract: A grinding machine, having a wheel carrier with a rotatable cubic boron nitride grinding wheel mounted on a bed. The wheel carrier is slidable with respect to a work support device and a truing device, which are selectively opposed to the grinding wheel through movement of a traverse table. Feed and feed control devices are provided to feed the wheel carrier from a transient original position to an advanced position in a grinding operation. A detecting device is further provided to detect an absolute original position of the wheel carrier. The feed control device is arranged such that, whenever a truing instruction is supplied, the wheel carrier is retracted to the absoluted original position and then, is advanced therefrom to a truing position incremented by a predetermined truing infeed amount from the advanced position.

Abstract translation: 一种磨床，具有安装在床上的具有可旋转立方氮化硼砂轮的轮架。 轮架可相对于工件支撑装置和修整装置滑动，该装置通过横动台的移动而选择性地与砂轮相对。 进给和进给控制装置被设置成在研磨操作中将轮架从暂时原始位置馈送到前进位置。 进一步提供检测装置以检测车轮承载件的绝对原始位置。 进给控制装置被布置成使得每当提供修整指令时，轮架被缩回到绝对的原始位置，然后从其前进到从提前位置增加预定的修整进给量的修整位置。