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1. 发明申请

WO1987005839A1 SYSTEM FOR CONTROLLING THE TAPPING OPERATION 审中-公开
标题翻译：控制操作的系统
公开(公告)号：WO1987005839A1
公开(公告)日：1987-10-08
申请号：PCT/JP1987000182
申请日：1987-03-25
申请人： FANUC LTD , IWAGAYA, Takashi
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/16 , G05B19/186 , G05B2219/41255 , G05B2219/45216 , G05B2219/50216 , G05B2219/50226 , Y10T408/165 , Y10T408/172 , Y10T408/175 , Y10T408/23
摘要： A system for controlling the tapping operation in which the turning of tap is effected by a digital spindle motor (1) in synchronism with the drive of tap in the axial direction by a servo motor (2) for tapping operation of high accuracy and high reliability. A speed instruction is supplied from a position control means (4) to a digital control circuit (5) which drives a spindle motor, the speed instruction being based upon a distribution pulse from an interpolation circuit (3a) which performs linear interpolation depending upon the pitch of a screw that is to be machined and upon a feedback signal that represents the rotational position of the spindle motor. The distribution pulse is further supplied to a servo circuit (12) for the servo motor from the interpolation circuit. Therefore, the two motors are driven in synchronism with each other. In one embodiment, the tapping operation is effected according to a fixed cycle in which the two motors are turned forward and reverse repeatedly to reciprocate the tap. In another embodiment, a switching means (7) to supply the distribution pulse and the feedback signal intermittently is provided in order to selectively perform the tapping operation.

2. 发明申请

WO1988003451A1 TAPPING CONTROLLER 审中-公开
标题翻译：皮带控制器
公开(公告)号：WO1988003451A1
公开(公告)日：1988-05-19
申请号：PCT/JP1987000878
申请日：1987-11-11
申请人： FANUC LTD , KAWAMURA, Hideaki , SASAKI, Takao
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/16 , G05B19/186 , G05B2219/43107 , G05B2219/45216
摘要： A tapping controller for effecting the tapping by turning a main spindle and moving a Z spindle in synchronism with each other by distributing the pulses. The controller has a time constant-determining means (2) for determining a time constant in accordance with the speed of the main spindle. The time constant is determined by the time constant-determining means (2) from an instructed speed of the main spindle and is given to acceleration/deceleration control circuits (10, 20) to effect the tapping. The time constant is selected in accordance with the revolving speed of the main spindle. When the main spindle is revolving at a high speed, a large time constant is selected to prevent overshooting. When the main spindle is revolving at a low speed, a small time constant is selected to effect the machining at high speeds.

3. 发明申请

WO1990014192A1 CONTROL DEVICE FOR TAPPING 审中-公开
标题翻译：控制装置
公开(公告)号：WO1990014192A1
公开(公告)日：1990-11-29
申请号：PCT/JP1990000603
申请日：1990-05-11
申请人： FANUC LTD , KAKU, Masahiro , KONO, Shinichi , FUKUKURA, Masaaki
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/18 , G05B19/186 , G05B2219/45216 , Y10T29/5114 , Y10T408/165 , Y10T408/17
摘要： This invention relates to a control device that can drive a compound lathe capable of tapping on the edge surface of a rotating work. This control device (100) is provided with first and second control circuits (110, 120) that control the rotation of first and second main shafts (10, 20) respectively loaded with a work (60) and a tapper (70). When tapping is to be started, after performing control of position loop according to the deviation (ε) between the position feedback signals (PCC1, PCC2) relating to each of both main shafts and controlling the rotations of both main shafts to the same speed, the second control circuit rotates the second main shaft faster than the first main shaft by a tapping speed according to the deviation (ε) between the sum of the tapping speed command (Vc) and the feedback signal (PCC1) from a high order control device (40) and the feedback signal (PCC2), as well as moves the second main shaft in the shaft direction at a speed determined according to the tapping speed and the tapping pitch, and performs the tapping on the edge surface of the rotating work. After the tapping is finished, the second main shaft is reversely rotated and moved backward to separate the tapper from the work.

4. 发明申请

WO1990001388A1 DEVICE FOR CONFIRMING THE TAP OPERATION IN THE RIGID TAPPING 审中-公开
标题翻译：用于确认刚性皮带中的TAP操作的装置
公开(公告)号：WO1990001388A1
公开(公告)日：1990-02-22
申请号：PCT/JP1989000747
申请日：1989-07-27
申请人： FANUC LTD , NAKAMURA, Kosei , NUMAI, Kazuhisa
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/16 , G05B19/186 , G05B19/4062 , G05B2219/34457 , G05B2219/42268 , G05B2219/45216 , G05B2219/50234 , Y10T408/16
摘要： The female threading operation is carried out by driving a tap (14) using a built-in main shaft motor (12) which directly drives the tap (14) without using transmission mechanism and using another motor (22) moves the tap together with the main shaft motor (12) in the lengthwise direction (Z) of the tap. The two motors (12, 22) are controlled for their rotation in synchronism with each other, and a difference operation unit (32) always monitors the difference between an instructed speed of revolution sent from a synchronism control unit (36) to the built-in main shaft motor (12) and a practical speed of revolution of the built-in main shaft motor detected by a revolution detector (16). When the difference becomes greater than a predetermined value, a light-emitting diode (40) or the like produces an alarm. Therefore, the female threading operation is carried out at high speeds maintaining high threading precision, and percent defective is decreased.

5. 发明申请

WO1985003468A1 TAPPING METHOD 审中-公开
标题翻译：剥皮方法
公开(公告)号：WO1985003468A1
公开(公告)日：1985-08-15
申请号：PCT/JP1985000044
申请日：1985-02-04
申请人： FANUC LTD , KIYA, Nobuyuki , YOSHINO, Motoaki
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： G05B19/186 , G05B2219/45216 , G05B2219/50225 , G05B2219/50226 , Y10T408/17
摘要： A tapping method for machining threads of a work piece by moving a tapping tool (4) to a slave position (Pe) in synchronization with the rotation of a spindle, and then inverting the spindle and drawing the tool (4) from the work synchronously with the rotation of the spindle, which method comprises the steps of (a) moving and positioning the spindle, i.e., the tapping tool (4) from the initial point (Pi) to the approach point (Pr) in the direction of depth (the Z-axis) while normally rotating the tool (4) at a constant speed, (b) then starting a distributed pulse calculation by using a pulse having a frequency proportional to the pitch of the screw and the rotating speed of the spindle to machining threads while moving the tapping tool with the pulse distributed toward the target position (Pe), (c) outputting a spindle inverting command to invert the spindle without stopping the distributed pulse calculation even if the tapping tool has arrived at the target position (Pe), moving the tapping tool in the direction of depth with the distributed pulse during normal rotation of the spindle byinertial rotation synchronously with the rotation of the spindle, (e) raising the tapping tool (4) with the distributed pulse to the approach point (Pr) after the spindle has been inverted by the piston (Pm) to finish the pulse distributed calculation after reaching the approach point (Pr).

6. 发明申请

WO1982001336A1 THREADING CONTROL SYSTEM 审中-公开
标题翻译：螺纹控制系统
公开(公告)号：WO1982001336A1
公开(公告)日：1982-04-29
申请号：PCT/JP1981000288
申请日：1981-10-16
申请人： FUJITSU FANUC LTD , FUKUYAMA HIROMI , ISOBE SHINICHI
发明人： FUJITSU FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/16 , G05B19/186 , G05B2219/45216 , Y10T82/25 , Y10T408/172
摘要： Systeme de controle pour le taraudage a l'aide d'une machine a commande numerique, dans lequel les filets mal formes dus a la vibration de l'alimentation provoquee par le moteur d'alimentation et la profondeur irreguliere du taraudage provoquee par l'inertie d'un systeme a broche rotative, sont evites; et dans lequel la procedure d'instructions est simplifiee. Un taraud (13) est retenu de facon amovible dans la direction de la broche. Alors que la broche (3) tourne normalement, son mouvement de revolution est transmis au taraud (13) lorsque le deplacement du taraud se trouve dans une plage determinee. Lorsque le mouvement du taraud sort des limites de la plage consideree, le mouvement de revolution de la broche (3) n'est pas transmis au taraud (13). Lorsque la broche (13) est animee d'un mouvement de rotation inverse, un organe de transmission (4) est monte sur la broche de facon a transmettre le mouvement de revolution de la broche (3) au taraud (13). Lors du taraudage, le taraud est initialement introduit par le moteur d'alimentation, mais le taraudage n'est effectue que grace a la force d'avancement du taraud (13) qui est anime d'un mouvement de rotation sous l'action du mouvement de revolution de la broche (3). La sequence de taraudage est commandee par un bloc de donnees d'instructions.

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