专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4873793A Numerically controlled machine tool 失效
标题翻译：数控机床
公开(公告)号：US4873793A
公开(公告)日：1989-10-17
申请号：US92689
申请日：1987-09-03
申请人： Hiroaki Asano , Toshio Tsujiuchi , Takao Yoneda , Nobuhiro Ishihara , Toshio Maruyama , Norio Ohta
发明人： Hiroaki Asano , Toshio Tsujiuchi , Takao Yoneda , Nobuhiro Ishihara , Toshio Maruyama , Norio Ohta
IPC分类号： G05B19/18 , G05B19/23
CPC分类号： G05B19/232 , G05B19/184 , G05B2219/41177 , G05B2219/41186 , G05B2219/50057 , G05B2219/50211
摘要： 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.

2. 发明授权

US4490946A Grinding wheel feeder in grinding machines 失效
标题翻译：研磨机砂轮给料机
公开(公告)号：US4490946A
公开(公告)日：1985-01-01
申请号：US453830
申请日：1982-12-28
申请人： Toshio Tsujiuchi , Takao Yoneda , Norio Ohta
发明人： Toshio Tsujiuchi , Takao Yoneda , Norio Ohta
IPC分类号： B24B47/22 , B24B47/25 , B24B49/18 , B24B51/00 , G05B19/18 , B24B49/04
CPC分类号： B24B49/18
摘要： Wear on the dressing tool is derived from an amount of movement that a grinding wheel is advanced until issuance of a signal from a sizing device for correcting data on the radius of the grinding wheel. The data on the radius of the grinding wheel is thus indicative of an actual radius of the grinding wheel regardless of a variation in the grinding wheel radius due to the wear of a dressing tool. Accordingly, the grinding surface of the grinding wheel can be exactly positioned at a grinding start position after the grinding wheel has been returned to its original position upon power supply failure, emergency machine shutdown or the like, so that any unwanted interference between the grinding wheel and a workpiece can be avoided.
摘要翻译：修整工具上的磨损源自砂轮前进的运动量，直到发出来自尺寸调整装置的信号，以校正磨轮半径上的数据。砂轮半径的数据因此表示砂轮的实际半径，而不管由于修整工具的磨损造成砂轮半径的变化。因此，在砂轮在电源故障，应急机器停机等之后已经返回到原来的位置之后，磨轮的研磨面可以精确地定位在研磨开始位置，使得砂轮之间的任何不期望的干涉并且可以避免工件。

3. 发明授权

US4570387A Centerless grinding machine 失效
标题翻译：无心磨床
公开(公告)号：US4570387A
公开(公告)日：1986-02-18
申请号：US607213
申请日：1984-05-04
申请人： Kunihiko Unno , Toshio Tsujiuchi , Norio Ohta
发明人： Kunihiko Unno , Toshio Tsujiuchi , Norio Ohta
IPC分类号： B24B5/18 , B24B5/22 , B24B49/18 , B24B49/04
CPC分类号： B24B49/183 , B24B5/22
摘要： In a centerless grinding machine, a work blade for rotatably carrying a workpiece is movable by a blade feed device in a direction normal to a first line extending across the axes of grinding and regulating wheels. Present diameters of the wheels, a desired finish diameter of the workpiece and a predetermined value representing the sine of a center height angle are stored in a data memory. The center height angle is represented by the sum of angles which a second line extending across the axes of the grinding wheel and the workpiece and a third line extending across the axes of the regulating wheel and the workpiece respectively make relative to the first line when the workpiece is finished to the desired finish diameter. When each of the wheels is dressed, a data rewriting circuit replaces the diameter of each wheel being stored in the data memory with a new diameter after such dressing. Based upon those data being stored in the data memory, a calculation circuit calculates a center height position at which the axis of the workpiece with the desired finish diameter is to be located for maintaining the center height angle constant independently of the variations in diameters of the wheels. The blade feed device positions the work blade to the calculated center height position so that the center height angle can be maintained constant.
摘要翻译：在无心研磨机中，用于可旋转地承载工件的工作刀片可以通过刀片进给装置沿垂直于穿过研磨和调节轮的轴线延伸的第一线的方向移动。车轮的现有直径，工件的期望成品直径和表示中心高度角的正弦的预定值存储在数据存储器中。中心高度角由两角度之和表示，第二条线延伸穿过砂轮和工件的轴线，并且横跨调节轮和工件的轴线延伸的第三条线分别相对于第一条线条形成工件完成到所需的最终直径。当每个车轮被修整时，数据重写电路在这样的修整之后用新的直径代替存储在数据存储器中的每个车轮的直径。基于存储在数据存储器中的数据，计算电路计算中心高度位置，在该中心高度位置处，具有期望的精加工直径的工件的轴线将被定位，以保持中心高度角恒定，而与直径的变化无关车轮。刀片进给装置将工作刀片定位到计算的中心高度位置，使得中心高度角度可以保持恒定。

4. 发明授权

US4963805A Numerical control apparatus for machining non-circular workpieces 失效
标题翻译：用于加工非圆形工件的数控机床
公开(公告)号：US4963805A
公开(公告)日：1990-10-16
申请号：US310521
申请日：1989-02-14
申请人： Ikuo Suzuki , Takao Yoneda , Toshio Tsujiuchi , Naoki Arimoto
发明人： Ikuo Suzuki , Takao Yoneda , Toshio Tsujiuchi , Naoki Arimoto
IPC分类号： B24B19/12 , B24B5/42 , G05B19/18 , G05B19/4103
CPC分类号： B24B5/42 , G05B19/184
摘要： A numerical control apparatus for machining non-circular workpieces such as a cam and the like has been disclosed. The cam and the like are used in changing the operation from rotational to linear motion. In designing the shape of the cam and the like, lift data prescribing the relationship between the rotational and linear motions is used. The lift data is given by the position sequence on the linear motion corresponding to a number of discrete rotational angles. Also, the tolerance of the positions is given from a functional aspect. The lift data is converted into profile data prescribing the shape of the cam and the like after being smoothed within the tolerance by a regression analysis, and machining of the non-circular workpieces is effected according to the profile data.

5. 发明授权

US5303512A Method and apparatus for grinding a cylindrical surface of a workpiece by traverse grinding 失效
标题翻译：用于通过横向研磨研磨工件的圆柱形表面的方法和装置
公开(公告)号：US5303512A
公开(公告)日：1994-04-19
申请号：US902822
申请日：1992-06-23
申请人： Toshio Tsujiuchi , Tomoyasu Imai , Norio Ohta , Yukio Oda , Ryohei Mukai , Hisashi Nakamura , Takayuki Yoshimi
发明人： Toshio Tsujiuchi , Tomoyasu Imai , Norio Ohta , Yukio Oda , Ryohei Mukai , Hisashi Nakamura , Takayuki Yoshimi
IPC分类号： B24B1/00 , B24B5/01 , B24B5/04 , B24B49/03 , B24B49/04 , B24B49/16
CPC分类号： B24B1/00 , B24B49/03 , B24B49/04 , B24B5/01 , B24B5/04
摘要： 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.
摘要翻译：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。

6. 发明授权

US4967515A Numerically controlled grinding machine 失效
标题翻译：数控磨床
公开(公告)号：US4967515A
公开(公告)日：1990-11-06
申请号：US381974
申请日：1989-07-19
申请人： Toshio Tsujiuchi , Norio Ohta , Masatomo Yoshimura
发明人： Toshio Tsujiuchi , Norio Ohta , Masatomo Yoshimura
IPC分类号： B24B47/25 , B24B47/22 , G05B19/416
CPC分类号： G05B19/4166 , G05B2219/37405 , G05B2219/41177 , G05B2219/45161
摘要： 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.

7. 发明授权

US4956946A Numerically controlled grinding machine 失效
标题翻译：数控磨床
公开(公告)号：US4956946A
公开(公告)日：1990-09-18
申请号：US322300
申请日：1989-03-13
申请人： Toshio Tsujiuchi , Norio Ohta , Masatomo Yoshimura
发明人： Toshio Tsujiuchi , Norio Ohta , Masatomo Yoshimura
IPC分类号： B24B47/22 , B24B19/12 , B24B49/02 , B24B49/16 , B24B51/00 , G05B19/416
CPC分类号： B24B51/00 , B24B49/16 , G05B19/4163 , G05B2219/35525 , G05B2219/37285 , G05B2219/41177 , G05B2219/45161
摘要： A numerically controlled internal grinding machine for grinding a workpiece by a rough grinding operation with a rough grinding wheel and a finish grinding operation with a finish grinding wheel. The grinding machine detects the load power of a motor which drives the finish grinding wheel in order to determine a compensation value to enable subsequent compensation due to wear of the rough grinding wheel. In the successive rough grinding operation, the relative position of the workpiece is compensated for according to the determined compensation value, so that the diameter of the workpiece after the rough grinding operation is maintained at a desired constant value regardless of the wear of the rough grinding wheel.
摘要翻译：一种数控内磨床，用于通过粗磨砂轮进行粗磨和精磨砂轮的精磨操作来研磨工件。研磨机检测驱动精磨轮的电机的负载功率，以便确定补偿值，以便能够由于粗磨轮的磨损而进行后续补偿。在连续粗磨操作中，根据确定的补偿值补偿工件的相对位置，使得粗磨后的工件直径保持在所需的常数值，而与粗磨的磨损无关轮。

8. 发明授权

US4122635A Grinding machine with a truing device 失效
标题翻译：研磨机具有修整装置
公开(公告)号：US4122635A
公开(公告)日：1978-10-31
申请号：US841106
申请日：1977-10-11
申请人： Hiroaki Asano , Toshio Tsujiuchi
发明人： Hiroaki Asano , Toshio Tsujiuchi
IPC分类号： B24B49/18
CPC分类号： B24B49/18
摘要： 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.
摘要翻译：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。

9. 发明授权

US4497140A Cam grinding machine 失效
标题翻译：凸轮磨床
公开(公告)号：US4497140A
公开(公告)日：1985-02-05
申请号：US403509
申请日：1982-07-12
申请人： Tsuyoshi Koide , Toshio Maruyama , Toshio Tsujiuchi
发明人： Tsuyoshi Koide , Toshio Maruyama , Toshio Tsujiuchi
IPC分类号： B24B19/09 , B24B19/12 , B24B17/02
CPC分类号： B24B19/12
摘要： 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.
摘要翻译： 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）。

10. 发明授权

US4235218A Truing and dressing apparatus for grinding wheels 失效
标题翻译：砂轮修整和修整设备
公开(公告)号：US4235218A
公开(公告)日：1980-11-25
申请号：US8172
申请日：1979-01-31
申请人： Wataru Iida , Toshio Tsujiuchi
发明人： Wataru Iida , Toshio Tsujiuchi
IPC分类号： B24B53/00 , B24B53/07 , B24B53/14
CPC分类号： B24B53/07 , B24B53/00
摘要： An apparatus for truing and dressing a grinding wheel made of cubic boron nitride is provided. A support head supporting a truing wheel and another support head supporting a dressing roll are separately and independently arranged on a wheel support of a grinding machine. The truing wheel is rotated in the same direction as is the grinding wheel so as to true the grinding wheel in an up-cut manner, and the dressing roll is rotated in a direction opposite to that of the grinding wheel so as to dress the grinding wheel in a down-cut manner. The dressing roll is fed toward the grinding wheel to be ground thereby and then returned a predetermined amount away from the grinding wheel prior to a truing operation.
摘要翻译：提供了一种用于修整和修整由立方氮化硼制成的砂轮的设备。支撑修整轮的支撑头和支撑修整辊的另一个支撑头分别且独立地布置在研磨机的轮支撑件上。修整轮沿与砂轮相同的方向旋转，以便以上切的方式使砂轮成真，并且修整辊沿与砂轮的方向相反的方向旋转，从而使研磨轮下降的方式。修整辊朝研磨轮进给，从而被磨削，然后在修整操作之前从磨轮返回预定量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式