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1. 发明专利

JPS58120450A TABLE CONTROL METHOD OF MACHINE TOOL 失效
公开(公告)号：JPS58120450A
公开(公告)日：1983-07-18
申请号：JP21393881
申请日：1981-12-29
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI
IPC分类号： B23Q15/00 , G05B19/18 , G05B19/19
摘要： PURPOSE:To control each motor with a single control command when tables are driven as an integral unit, by connectably forming the plural tables and correcting the shifting between driving currents of the motors driving each table. CONSTITUTION:In case of connectively driving tables 4a, 4b, the both tables are connected by a connecting means 9 to output a control pulse PC1 of each motor 3a, 3b from a selector circuit 13. While a characteristic difference between the motors 3a, 3b and response characteristic differenc between servo systems are caught as the shifting of a driving current of each motor and displayed as an output of a correction circuit 10. Further a speed deviation signal is additionally considered to obtain a correction signal and input to a speed control circuit 2b, and the motors 3a, 3b are controlled so as to obtain a zero difference between their driving currents. In this way, applied torque to the both motors 3a,3b is equalized also the driving current is equalized thus the tables 4a, 4b can be smoothly moved as an integral unit.

2. 发明专利

JPS5862707A NUMERICAL CONTROL SYSTEM 失效
公开(公告)号：JPS5862707A
公开(公告)日：1983-04-14
申请号：JP16124181
申请日：1981-10-09
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , AMAMIYA YOUICHI , KAWAMURA HIDEAKI
IPC分类号： G05D3/00 , G05B19/25 , G05B19/41 , G05B19/4103 , H02P5/50 , H02P5/52
摘要： PURPOSE:To perform accurate synchronizing operation, by providing a position control system in addition to a speed control system of a numerical control system synchronizingly operating >=2 motors and controlling the axial speed of each motor with a pulse obtained with pulse distribution. CONSTITUTION:An NC command data is read from a tape 11, a numerical control section 12 sets speed references VS, VW, VB to a distributor 12a and outputs distribution pulses PS, PW, PB. The pulse output command pulses PS', PW', PB with acceleration/deceleration circuits 13-15b, they are stored in an error register of position control circuits 13-15b, they are stored in an error register of position control circuits 13-15f via operation circuits 13-15e to generate speed reference voltages VSC, VWC and VBC. Motors 13-15a are controlled with speed control circuits 13-15h. Position control circuits 13-15f are controlled with position feedback circuits PFS, PFW, PFB and the speed control circuits 13-15h are controlled with speed feedback circuits VFS, VFW, and VFB so that the position and speed error can be zeroed. Thus, accurate synchronizing operation can be done with good response.

3. 发明专利

JPS5862702A NUMERICAL CONTROLLING METHOD 失效
公开(公告)号：JPS5862702A
公开(公告)日：1983-04-14
申请号：JP16124281
申请日：1981-10-09
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI , MIYATA MITSUTO
IPC分类号： G05B9/02 , G05B19/4067 , G05B19/414
摘要： PURPOSE:To quickly process failures, by immediately interrupting processing and saving the program during the execution of a processing program if a failure takes place, and returning to the original program again after the end of processing for the failure. CONSTITUTION:An input control circuit ICT reads out a program of a main memory NCM normally and gives an output to a decoder DEC, and when a tool broken signal TLBS is inputted to said circuit ICT and an operation control circuit OPCN via a power supply circuit PWC, a pulse distribution stop signal PDI is outputted to a pulse distributor PDC, the circuit ICT stops the readout of a memory NCM to read out a subprogram in response to the TLBS from a sub-memory UMM to an OPCN via a DEC, and a data memory DMM is saved to a save memory SMM, allowing to replace a tool with a subprogram. After the replacement of a tool, the data memory DMM is read out from the save memory SMM and the execution of the stopped main program is restarted. Thus, the processing of failures can be performed quickly.

4. 发明专利

JPS5835607A NUMERICAL CONTROLLING SYSTEM 失效
公开(公告)号：JPS5835607A
公开(公告)日：1983-03-02
申请号：JP13477481
申请日：1981-08-27
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI , SASAKI TAKAO
IPC分类号： B23Q15/00 , G05B19/416
摘要： PURPOSE:To generate easily a numerical control tape, by clamping the actual feed speed with an upper limit speed when a feed speed higher than the upper limit feed speed is commanded. CONSTITUTION:An upper limit speed VL for linear cut and an upper limit speed VC for arc cut are inputted to a comparison selecting circuit 102a of a controlling part 102. When a command speed Vi is read, the circuit 102a compares it with the upper limit speed VL or VC. As a result, if Vi

5. 发明专利

JPS58177252A TURNING CONTROL METHOD 失效
公开(公告)号：JPS58177252A
公开(公告)日：1983-10-17
申请号：JP5702682
申请日：1982-04-06
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI
IPC分类号： B23Q15/22 , B23Q15/013 , G05B19/18
摘要： PURPOSE:To correct the servo delay in synchronous feeding and thereby perform an efficient thread cutting, by changing the revolving speed of the spindle at the coarse and finish processing phases in the thread cutting process and by making correction of the cutter position at the time of starting accordingly. CONSTITUTION:When thread is to be cut on a work WK, a higher processing efficiency will be obtained if the revolving speed of the work WK is different between the coarse and finish phases. Because the synchronous servo motion of the cutter in the Z direction has different servo delays dL and dS according to the feed speed fL, fS, a proceeding of the thread cutting without special consideration will yield a double thread and lower the accuracy. The positions of cutter's tip can be put identical between the coarse and finish phases by making correction of the cutter position at the time of starting (position in the direction of Z or Q axis) in accordance with the feed speed fL, fS. Thus thread cutting in high precision can be made at a high efficiency.

6. 发明专利

JPS5880706A NUMERICAL CONTROL SYSTEM 失效
公开(公告)号：JPS5880706A
公开(公告)日：1983-05-14
申请号：JP17926081
申请日：1981-11-09
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI
IPC分类号： G05D3/12 , G05B11/32 , G05B19/414
摘要： PURPOSE:To control plural control shafts by means of a servomotor and a servocontrol circuit, by providing a servomotor and a servocontrol circuit to each control shaft and then giving a control command from a position command part. CONSTITUTION:The servocontrol circuits 213-215 of X, Y and Z shafts are provided to the X, Y and Z shafts of a machine tool respectively. At the same time, a servocontrol circuit 216 common to U and W shafts is provided to the circuit 216. Then pulse train acceleration/deceleration circuits 210U and 210W are connected to the circuit 216 via a changeover switch 218. This switch 218 is controlled with the output of a U/W switching control circuit 219 which uses a command given from a manual control circuit 219 which uses a command given from a manual control board 205 as an input. The U and W shafts are switched by a motor 217UW. Thus the constitution is simplified for a numerical controller of a machine tool.

7. 发明专利

JPS5824905A NUMERICAL CONTROLLING SYSTEM 失效
公开(公告)号：JPS5824905A
公开(公告)日：1983-02-15
申请号：JP12376181
申请日：1981-08-07
申请人： FUJITSU FANUC LTD
发明人： KAWAMURA HIDEAKI , ARAMAKI HITOSHI
IPC分类号： G05B19/42 , G05B19/408 , G05B19/4155
摘要： PURPOSE:To improve the working efficiency of a numerical controller, by performing write processing of a command program to an internal memory and read of numerical control data in parallel. CONSTITUTION:Numerical control NC data of one block are read out from a paper tape 101 by driving a paper tape reader 102 and inputted to a processing section 104. The processing section 104 writes this data to an internal memory 103 for NC processing. If the NC data is, e.g. a numerical data representing a position, a pulse distribution circuit 105 outputs distribution pulses Xp,Yp and Zp based on the input value, drives a motor of each axis with servo circuits 106X- 106Z, positionings a tool and moves it in accordance with a command path. When the circuit 105 is finished for the pulse distributing calculation, a distribution completion signal comes to the processing section 104, then the section 104 writes the command program to the internal memory 103 and performs the read of the NC data of the next block to the reader 102.

8. 发明专利

JPS56168223A NUMERICAL VALUE CONTROL SYSTEM 失效
公开(公告)号：JPS56168223A
公开(公告)日：1981-12-24
申请号：JP7099780
申请日：1980-05-28
申请人： FUJITSU FANUC LTD
发明人： NAGAMINE AKIRA , KAWAMURA HIDEAKI , MIYATA MITSUTO
IPC分类号： G05B19/4155 , G05B19/18 , G05B19/414
摘要： PURPOSE:To offer CNC which is in confirmity with a user's demand, by registering plural user macro-instructions in advance. CONSTITUTION:Each user macro-instruction in a user macro-instruction tape 22 to which one or plural user macro-instructions are punched is constituted of a macro- instruction symbol name and a macro-instruction which is using a variable code. Also, as for an instruction tape 21, a user macro-call-instruction is programmed in addition to a usual instruction, a prescribed user macro-instruction is called optionally, and the processing is executed in accordance with the relevant user macro-instruction. Plural user macro-instructions which is read by a tape reader 23 are stored in a macro-instruction registering memory 24. A discriminating circuit 25 selects a processing part of the next stage and sends it out, depending on whether information which is read is a user macro-instruction or a usual instruction. A variable memory 28 stores a corresponding relation of a system variable code and a variable value corresponding to said code, and so on, so that they are referred from both a usual processing part 26 and a user macro-instruction processing part 27.

9. 发明专利

JPS58175003A COMMAND SYSTEM OF NUMERICAL CONTROL 失效
公开(公告)号：JPS58175003A
公开(公告)日：1983-10-14
申请号：JP5771482
申请日：1982-04-07
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI , MIYATA MITSUTO
IPC分类号： G05B19/18 , G05B19/408
摘要： PURPOSE:To attain easy extension of the G code and easy storage and rewrite processing corresponding to functions, by describing a numeral and a code after an alphabet G additionally in the G code data. CONSTITUTION:NC data read from a paper tape 101 at a tape reader 102 are inputted to a control unit 103 and processed based on the control program stored in an ROM104. When the NC data are function instruction of M, S, T, the instruction is outputted to a machine 201 via a power panel 105 immediately and when the instruction is position command data, incremented values DELTAX, DELTAY and DELTAZ are operated and inputted to a pulse distributor 106. When the code is the G code, it is stored in a G code memory 107, where one-bit is assigned to one G code. When a prescribed G code is commanded, the corresponding bit goes to 1 and a G code being modal to the inputted G code goes to 0.

10. 发明专利

JPS58120449A TABLE CONTROL METHOD OF MACHINE TOOL 失效
公开(公告)号：JPS58120449A
公开(公告)日：1983-07-18
申请号：JP21393781
申请日：1981-12-29
申请人： FUJITSU FANUC LTD
发明人： NOZAWA RIYOUICHIROU , KAWAMURA HIDEAKI
IPC分类号： B23Q15/00 , B23Q5/00 , G05B19/19
摘要： PURPOSE:To perform interlocking and independent driving of tables, by plurally providing the tables, motors, driver circuits and position detectors, connectably forming the plural tables and correcting the shifting between the plural motors from a difference between position detecting signals. CONSTITUTION:When a work can not be mounted to a single of table, tables 4a, 4b are connected by a connecting means 9, and a selector circuit 13 is operated by a simultaneous drive command SDC to output a distributive pulse PC1 controlling motors 3a, 3b. While a difference between feedback pulses FF1, FP2 calculated by an arithmetic circuit 10 is input to a corrector circuit 11, and a correction pulse CP in accordance with the difference is added to the pulse PC1 to synchronously rotate the motor 3b with the motor 3a. In this way, position shifting on the basis of a difference of characteristics between the motors 3a, 3b and a difference of response characteristics between servo control systems can be corrected to enable the driving of the tables 4a, 4b as an integral unit.

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