WO1991000556A1 - Dispositif de commande numerique - Google Patents
Dispositif de commande numerique Download PDFInfo
- Publication number
- WO1991000556A1 WO1991000556A1 PCT/JP1990/000670 JP9000670W WO9100556A1 WO 1991000556 A1 WO1991000556 A1 WO 1991000556A1 JP 9000670 W JP9000670 W JP 9000670W WO 9100556 A1 WO9100556 A1 WO 9100556A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dead center
- command value
- chopping
- axis
- top dead
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40937—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of machining or material parameters, pocket machining
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36091—Modification, override as function of conditions, distance
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36256—Define upper lower limit of reciprocating machining, chopping
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45161—Grinding machine
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/49—Nc machine tool, till multiple
- G05B2219/49382—Movement reciprocating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present invention relates to a numerical controller for controlling a chopping operation of a tool such as a grinder, and more particularly to a numerical controller capable of changing a bottom dead center and a top dead center.
- FIG. 3 is a diagram showing an example of the tubing process.
- the cycle between the bottom dead center Z £ and the top dead center Z u is moved up and down in several cycles per second, Then move the X and Y axes to grind the side surface 1 1a, li.
- the bottom dead center and top dead center were previously set by limit switches, etc., but recently, a numerical controller has been connected and can be set by a program. Can be changed according to the shape of the peak. From the program, for example, the bottom dead center position, the top dead center position, and the feeding speed of the shoving are commanded. In some cases, a shoving width is commanded instead of the top dead center position.
- Fig. 4 is a graph showing the chopping operation at the time of program command, the vertical axis is the Z-axis coordinate, and the vertical axis is the time.
- the Z axis is rapidly traversed to the coordinate value Zr of the reference point.
- chopping is started at fixed time intervals with the bottom dead center Zi1 and top dead center Zu1 specified by the program as target values.
- the commanded feed speed is accelerated / decelerated with a predetermined time constant, and there is also a delay in the servo circuit.
- the robot moves toward the next top dead center or bottom dead center, and the actual travel distance is insufficient.
- the numerical controller measures the difference between the coordinate value commanded by the program and the actual position of the ⁇ axis, and corrects this shortfall. That is, after the start of shoving, a command value obtained by adding a predetermined correction amount to the command value of the bottom dead center and the command value of the top dead center commanded by the program is commanded to the servo circuit. Then, when this correction amount is gradually increased, the shortage will be L1, L2, L3,
- the coordinates are input by operating a program or MDI.
- the numerical controller cancels the current servo correction, measures the shortfall with respect to the newly instructed coordinate values, and starts servo correction accordingly.
- the present invention has been made in view of such a point, and an object of the present invention is to provide a numerical control device capable of easily changing a bottom dead center and a top dead center in a short time.
- a command value output means that can output a predetermined command value manually, and a bottom dead center of a chopping axis specified by a program Command value calculation means for performing a required correction operation on the command value of the upper dead center and the command value of the top dead center, and superimposing and outputting the predetermined command values, respectively; and outputting from the command value calculation means.
- a shaft control means for controlling the chopping shaft based on the respective command values thus obtained.
- FIG. 1 is a block diagram showing the configuration of a numerical controller according to one embodiment of the present invention
- FIG. 2 is a graph showing a chopping operation by the numerical controller according to one embodiment of the present invention
- Fig. 3 shows an example of the chobbing process.
- FIG. 4 is a graph showing the chopping operation of the conventional numerical controller.
- FIG. 1 is a block diagram showing a configuration of a numerical controller (CNC) according to one embodiment of the present invention.
- a command Q of the shoving width is input to a program command value calculation circuit 2 from a program 1.
- the program command value calculation circuit 2 the program command value Z £ at the bottom dead center and the program command at the top dead center based on the command Q and a predetermined coordinate value set in advance, the Z axis which is the shoving axis. Calculate the value Z u.
- the correction value calculation circuit 3 extracts the maximum value and the minimum value of the Z-axis coordinate value Zp detected by the position detector 8 described later, compares them with the program command values Z ⁇ and Zu, and compares them. The difference is calculated, and correction values ⁇ Z ⁇ and ⁇ Zu proportional to the difference are output. However, when the correction values Z ⁇ and ⁇ Zu decrease below the set value, the values are held.
- the shoving command calculation circuit 4 has a program command value Z ⁇ and The correction command values ⁇ and Z uc are obtained by adding the correction values ⁇ Z i and ⁇ ⁇ u to Z u, respectively. Also, the command value of the command F of the feed speed commanded by the program 1 should be set so that the number of times of jibbing per unit time does not change even when the correction values ⁇ Z ⁇ and ⁇ Zu are added. Calculate the feed speed Fc increased by a predetermined amount. Then, the correction command values Z £ c and Z uc and the feed rate F c are output as the movement command C z.
- the shoving command calculation circuit 4 monitors the correction values ⁇ Z ⁇ and ⁇ Z u, and when these are both reduced below the set values and the values are held, the servo correction is completed. As a result, the interruption to the correction command values Zic and Zuc is enabled. Then, when a predetermined pulse is input from the manual pulse generator 5, the command value Zi corresponding to this pulse number is superimposed on the correction command values Z ⁇ c and Zuc, respectively.
- the Z-axis control circuit 6 drives the servomotor 7 based on the movement command Cz to move the Z-axis.
- the position detector 8 detects the position of the Z axis, and inputs the coordinate value Zp to the correction value calculation circuit 3 described above.
- the X command and the Y command are input from the program 1 to the X axis control circuit 16 and the Y axis control circuit 26, and the X axis and the Y axis are controlled via the servo motors 17 and 27.
- FIG. 2 is a graph showing the chopping operation by the numerical controller described above.
- the vertical axis is the Z-axis coordinate
- the horizontal axis is time.
- the Z axis is rapidly traversed to the coordinate value Zr of the reference point, and then the program command values Z ⁇ 1 and Zu1 are set as target values.
- the feed speed of the jumping is accelerated / decelerated with a predetermined time constant, and there is a delay in the servo circuit. Therefore, the actual movement distance is insufficient by L1 in the first cycle.
- the numerical controller measures the difference between the program command values Z £ 1 and Z u 1 and the actual coordinate values of the bottom dead center and top dead center of the Z axis, and performs servo correction. Is L2, L3,
- a predetermined pulse is continuously input from the manual pulse generator, and this pulse is superimposed on the command value at any time. Chiobbing is performed while changing the point and the top dead center.
- the bottom dead center and the top dead center are changed by superimposing the pulse from the manual pulse generator on the current command value, so that, for example, the operator adjusts to the actual machining state.
- the bottom dead center and top dead center can be easily fine-tuned, improving operability.
- the servo delay correction is not canceled when the bottom dead center and the top dead center are changed, high-precision chopping can always be performed with a specified chopping width.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Geometry (AREA)
- Numerical Control (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910700231A KR920701883A (ko) | 1989-06-29 | 1990-05-23 | 수치 제어 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1167893A JPH0331906A (ja) | 1989-06-29 | 1989-06-29 | 数値制御装置 |
JP1/167893 | 1989-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991000556A1 true WO1991000556A1 (fr) | 1991-01-10 |
Family
ID=15858019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/000670 WO1991000556A1 (fr) | 1989-06-29 | 1990-05-23 | Dispositif de commande numerique |
Country Status (6)
Country | Link |
---|---|
US (1) | US5172040A (ja) |
EP (1) | EP0431177A1 (ja) |
JP (1) | JPH0331906A (ja) |
KR (1) | KR920701883A (ja) |
CA (1) | CA2033994A1 (ja) |
WO (1) | WO1991000556A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09137781A (ja) * | 1995-11-15 | 1997-05-27 | Matsushita Refrig Co Ltd | 振動型圧縮機 |
DE102005015317B4 (de) * | 2005-04-01 | 2007-02-01 | Siemens Ag | Verfahren und Steuereinrichtung zur gezielten Reaktion bei einem Kontakt zwischen einem Maschinenelement einer Maschine mit einem Gegenstand |
JP4673326B2 (ja) * | 2007-01-11 | 2011-04-20 | オークマ株式会社 | 回転軸の位置制御装置 |
CN101887250B (zh) * | 2009-05-12 | 2012-05-30 | 鸿富锦精密工业(深圳)有限公司 | Cnc工具机控制装置 |
JP4728422B2 (ja) | 2009-12-09 | 2011-07-20 | ファナック株式会社 | 高速揺動動作を高精度化するサーボ制御システム |
JP6333793B2 (ja) | 2015-11-17 | 2018-05-30 | ファナック株式会社 | 揺動幅手動調整機能を有する数値制御装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58117007A (ja) * | 1981-12-30 | 1983-07-12 | Yamazaki Mazak Corp | 数値制御旋盤における割り込み制御方法 |
JPS63314603A (ja) * | 1987-06-17 | 1988-12-22 | Fanuc Ltd | 数値制御装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4279013A (en) * | 1979-10-31 | 1981-07-14 | The Valeron Corporation | Machine process controller |
JPS57164305A (en) * | 1981-04-01 | 1982-10-08 | Fanuc Ltd | Numerical control processing system |
US4509126A (en) * | 1982-06-09 | 1985-04-02 | Amca International Corporation | Adaptive control for machine tools |
JPS61190607A (ja) * | 1985-02-18 | 1986-08-25 | Toyoda Mach Works Ltd | 異常停止機能を備えた数値制御工作機械 |
US4723219A (en) * | 1985-06-21 | 1988-02-02 | Amca International Corporation | Programmed path for automatic tool retraction and return responsive to degradation threshold |
JPS6294247A (ja) * | 1985-10-17 | 1987-04-30 | Toyoda Mach Works Ltd | 途中停止機能を備えた数値制御工作機械 |
JPS6332608A (ja) * | 1986-07-26 | 1988-02-12 | Fanuc Ltd | 数値制御装置 |
US4748554A (en) * | 1986-08-14 | 1988-05-31 | Gte Valeron Corporation | Machine monitoring system using motion detection for synchronization |
JPH0652484B2 (ja) * | 1988-02-15 | 1994-07-06 | 豊田工機株式会社 | 非真円形工作物加工用数値制御装置 |
-
1989
- 1989-06-29 JP JP1167893A patent/JPH0331906A/ja active Pending
-
1990
- 1990-05-23 CA CA002033994A patent/CA2033994A1/en not_active Abandoned
- 1990-05-23 WO PCT/JP1990/000670 patent/WO1991000556A1/ja not_active Application Discontinuation
- 1990-05-23 EP EP90907497A patent/EP0431177A1/en not_active Withdrawn
- 1990-05-23 KR KR1019910700231A patent/KR920701883A/ko not_active Application Discontinuation
- 1990-05-23 US US07/646,716 patent/US5172040A/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58117007A (ja) * | 1981-12-30 | 1983-07-12 | Yamazaki Mazak Corp | 数値制御旋盤における割り込み制御方法 |
JPS63314603A (ja) * | 1987-06-17 | 1988-12-22 | Fanuc Ltd | 数値制御装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0431177A1 (en) | 1991-06-12 |
CA2033994A1 (en) | 1990-12-30 |
KR920701883A (ko) | 1992-08-12 |
US5172040A (en) | 1992-12-15 |
JPH0331906A (ja) | 1991-02-12 |
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