CN1907697A - Press machine head, system of workbench precision intelligence centering control and method thereof - Google Patents
Press machine head, system of workbench precision intelligence centering control and method thereof Download PDFInfo
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- CN1907697A CN1907697A CN 200510014713 CN200510014713A CN1907697A CN 1907697 A CN1907697 A CN 1907697A CN 200510014713 CN200510014713 CN 200510014713 CN 200510014713 A CN200510014713 A CN 200510014713A CN 1907697 A CN1907697 A CN 1907697A
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Abstract
The invention relates to a compressing head of compressor, a relative work bench accurate intelligent aim control system, and a relative control method, wherein said system comprises: a compressing head of compressor and a work bench; a motor driving the compressing head, and a motor driving the work bench; a frequency-variable device for controlling the motor; a PLC programmable controller for controlling the frequency-variable device; absolute valve coders on the tooth axle of straight track of compressing head an the tooth axle of straight track of work bench, as the displacement detector; the coders are connected to the PLC programmable controller. Said method comprises: moving the compressing head and work bench; detecting the moving position; PLC judges and controls the real position. And the displacements of compressing head and the work bench are controlled by intelligent digit frequency-variable device; and the system can automatically detect and control the compressing head and work bench, to confirm the high accuracy, quick response on the position, while the accuracy error is lower than 0.1mm.
Description
Technical field
The present invention relates to a kind of forcing press, particularly relate to and a kind ofly can conveniently realize human-computer dialogue, accurately press ram and the workbench precision intelligence centering control system and the control method thereof of controlled pressure compressing head and worktable displacement.
Background technology
Being the making by the Artificial Control shaping ship plates in shaping ship plates technology in the past, usually is after pressure head pressurization backhaul, artificial mobile machining sheet.Such defective is: behind the artificial mobile machining sheet, be difficult to guarantee the precision of its processing; And artificial mobile sheet material, the distance that needs the manual measurement machining sheet to move, operating efficiency are extremely low.For this reason, developed mobile revolution pressure head frame forcing press.Moving revolution pressure head frame forcing press can be according to arts demand while mobile pressure head and workbench, and the great like this labour intensity that has alleviated the people has improved operating efficiency greatly.But in moving the design of revolution pressure head frame forcing press, how to guarantee that the accuracy of alignment after pressure head and workbench move simultaneously is still the technical issues that need to address.Particularly along with the fast development of ac variable speed technology, and its cost is also more and more lower, moving on the revolution pressure head frame forcing press, begin to adopt intelligent digital amount Frequency Converter Control, because its control accuracy improves greatly, and adopting digital quantity control fully, control mode is simple, reliable, has become development trend at present.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can conveniently realize human-computer dialogue, accurately press ram and the workbench precision intelligence centering control system and the control method thereof of controlled pressure compressing head and worktable displacement.
The technical solution adopted in the present invention is: a kind of press ram and workbench precision intelligence centering control system include press ram and press bench; Also be provided with the motor of driving pressure compressing head and the motor of driving pressure machine worktable; The frequency converter of control motor; The PLC Programmable Logic Controller of control frequency converter; The tooth axle of the line slideway of press ram is provided with the absolute value encoder as the displacement detecting element, the tooth axle of the line slideway of press bench is provided with the absolute value encoder as the displacement detecting element, and absolute value encoder is connected with the PLC Programmable Logic Controller.Also be provided with touch screen human-computer interface, described touch screen human-computer interface carries out communication by serial communication cable RS232 and PLC Programmable Logic Controller.
Position module in the described PLC Programmable Logic Controller is connected with absolute value encoder with absolute value encoder by the SSI interface.
The signal input part of described frequency converter is connected with the control end of PLC Programmable Logic Controller, and the power input of frequency converter is connected with three phase mains by input filter; The power output end of frequency converter is connected with motor by output filter.
Another technical scheme of the present invention is: a kind of press ram and workbench precision intelligence centering control method include pressure head, movable workbench stage; Detect the actual shift position stage; The stage that the PLC Programmable Logic Controller is judged and controlled physical location.Physical location is judged and in stage of controlling, when pressure head, when the actual shift position of workbench is not equal to the value that sets, PLC Controlled by Programmable Controller frequency converter is with low speed rotation at the PLC Programmable Logic Controller.
Press ram of the present invention and workbench precision intelligence centering control system and control method thereof, intelligent digital amount Frequency Converter Control is adopted in the displacement of its press ram and press bench, control simple and reliable, and guarantee press ram and press bench running fix precision height, response is fast.This system accuracy error is less than 0.1mm.Owing to select for use the SM338 module to be connected with absolute value encoder by the SSI interface, after pressure head and workbench relatively move, actual displacement between the automatic detection of system's meeting pressure head, the workbench and the difference between the expectation displacement if exceed the scope that systematic error allows, will be reported to the police automatically.
Description of drawings
Fig. 1 is an overall structure block diagram of the present invention;
Fig. 2 is the control principle schematic diagram of frequency converter of the present invention and press ram;
Fig. 3 is the control principle schematic diagram of frequency converter of the present invention and press bench;
Fig. 4 is the connection diagram of absolute value encoder of the present invention and PLC position module;
Fig. 5 is the flow chart of control method of the present invention.
Wherein:
1: frequency converter 2: frequency converter
3:PLC Programmable Logic Controller 4: touch screen human-computer interface
5: position module 6: absolute value encoder
7: absolute value encoder 8: press ram
9: press bench 11,13: input filter
12,14: output filter M1, M2: motor
The specific embodiment
Below in conjunction with the drawings and specific embodiments, describe press ram of the present invention and workbench precision intelligence centering control system and control method thereof in detail.
As shown in Figure 1, press ram and workbench precision intelligence centering control system include press ram 8 and press bench 9; Also be provided with the motor M 1 of driving pressure compressing head 8 and the motor M 2 of driving pressure machine worktable 9; The frequency converter 2 of the frequency converter 1 of control motor M 1 and control motor M 2; The PLC Programmable Logic Controller 3 of control frequency converter 1 and frequency converter 2; Be provided with touch screen human-computer interface 4, described touch screen human-computer interface 4 carries out communication by serial communication cable RS232 and PLC Programmable Logic Controller 3.
As shown in Figure 4, the tooth axle of the line slideway of press ram 8 is provided with the absolute value encoder 6 as the displacement detecting element; The tooth axle of the line slideway of press bench 9 is provided with the absolute value encoder 7 as the displacement detecting element; Absolute value encoder 6 is connected with PLC Programmable Logic Controller 3 with absolute value encoder 7.That is, the position module 5 in the PLC Programmable Logic Controller 3 is connected with absolute value encoder 7 with absolute value encoder 6 by the SSI interface.Can be rapidly the displacement situation of press ram 8 and press bench 9 be fed back to PLC Programmable Logic Controller 3 by absolute value encoder, make the controlled pressure compressing head 8 that it can be promptly and accurately and the displacement of press bench 9.
As shown in Figure 2, the signal input part of described frequency converter 1 is connected with the control end of PLC Programmable Logic Controller 3, and the power input of frequency converter 1 is connected with three phase mains by input filter 11; The power output end of frequency converter 1 is connected with motor M 1 by output filter 12.Described motor M 1 is the three phase squirrel cage asynchronous machine, and it is connected by the gear of reductor with press ram 8.
As shown in Figure 3, the signal input part of described frequency converter 2 is connected with the control end of PLC Programmable Logic Controller 3, and the power input of frequency converter 2 is connected with three phase mains by input filter 13; The power output end of frequency converter 2 is connected with motor M 2 by output filter 14.Described motor M 2 is the three phase squirrel cage asynchronous machine, and it is connected by the gear of reductor with press bench 9.
As shown in Figure 5, press ram and workbench precision intelligence centering control method, include: starting pressure compressing head, press bench move S1; Absolute value encoder 6 on the tooth axle of the line slideway of PLC by being arranged on press ram 8, or be arranged on absolute value encoder 7 on the tooth axle of line slideway of press bench 9, the actual shift position S2 of detected pressures compressing head or press bench; 3 pairs of detected physical locations of PLC Programmable Logic Controller are judged S3; When value that physical location equals to set, PLC Programmable Logic Controller 3 enters normal working procedure S5 by frequency converter 1 or frequency converter 2 controlled pressure compressing heads, press bench; When press ram or the actual shift position of press bench were not equal to the value that sets, PLC Programmable Logic Controller 3 control frequency converters 1 or 2 were with low speed rotation, the value S4 that equals to set until the position that reality moves.
Operation principle of the present invention is: work as press ram, press bench carries out when mobile, coupled absolute value encoder 6,7 are sent to position module 5 in the PLC Programmable Logic Controller 3 with the shift position signal by the SSI interface, at this moment touch screen human-computer interface 4 obtains information by serial communication cable RS232, and demonstrate press ram 8, the comparison operation of data in PLC Programmable Logic Controller 3 that the position data of press bench 9 and user set, and send digital quantity signal by the module of PLC Programmable Logic Controller, and signal passed to high accuracy frequency converter 1,2, drive the motor rotation through frequency converter, thereby reach press ram, the purpose of adjustment is controlled in the displacement of press bench.
In the embodiments of the invention:
Absolute value encoder is selected for use: EAM58C256/8192G8/28SXX10S3PCA (TURCK):
PLC selects for use: the S7-300 of SIEMENS;
Position module among the PLC: SM338 position input module;
Frequency converter is selected for use: FRN5.5G11S-4CX;
Input filter is selected for use: NF312C10/05, output filter is selected for use: NF312B10/05.
Claims (9)
1. press ram and workbench precision intelligence centering control system, include press ram (8) and press bench (9), it is characterized in that, also be provided with the motor (M1) of driving pressure compressing head (8) and the motor (M2) of driving pressure machine worktable (9); The frequency converter (2) of the frequency converter (1) of control motor (M1) and control motor (M2); The PLC Programmable Logic Controller (3) of control frequency converter (1) and frequency converter (2); The tooth axle of the line slideway of press ram (8) is provided with the absolute value encoder (6) as the displacement detecting element, the tooth axle of the line slideway of press bench (9) is provided with the absolute value encoder (7) as the displacement detecting element, and absolute value encoder (6) is connected with PLC Programmable Logic Controller (3) with absolute value encoder (7).
2. press ram according to claim 1 and workbench precision intelligence centering control system, it is characterized in that, also be provided with touch screen human-computer interface (4), described touch screen human-computer interface (4) carries out communication by serial communication cable RS232 and PLC Programmable Logic Controller (3).
3. press ram according to claim 1 and workbench precision intelligence centering control system, it is characterized in that the position module (5) in the described PLC Programmable Logic Controller (3) is connected with absolute value encoder (7) with absolute value encoder (6) by the SSI interface.
4. press ram according to claim 1 and workbench precision intelligence centering control system, it is characterized in that, the signal input part of described frequency converter (1) is connected with the control end of PLC Programmable Logic Controller (3), and the power input of frequency converter (1) is connected with three phase mains by input filter (11); The power output end of frequency converter (1) is connected with motor (M1) by output filter (12).
5. press ram according to claim 1 and workbench precision intelligence centering control system is characterized in that described motor (M1) is the three phase squirrel cage asynchronous machine.
6. press ram according to claim 1 and workbench precision intelligence centering control system, it is characterized in that, the signal input part of described frequency converter (2) is connected with the control end of PLC Programmable Logic Controller (3), and the power input of frequency converter (2) is connected with three phase mains by input filter (13); The power output end of frequency converter (2) is connected with motor (M2) by output filter (14).
7. press ram according to claim 1 and workbench precision intelligence centering control system is characterized in that described motor (M2) is the three phase squirrel cage asynchronous machine.
8. press ram and workbench precision intelligence centering control method is characterized in that, include pressure head, movable workbench stage; Detect the actual shift position stage; The stage that PLC Programmable Logic Controller (3) is judged and controlled physical location.
9. press ram according to claim 8 and workbench precision intelligence centering control method, it is characterized in that, physical location is judged and in stage of controlling at PLC Programmable Logic Controller (3), when pressure head, when the actual shift position of workbench is not equal to the value that sets, PLC Programmable Logic Controller (3) control frequency converter (1,2) is with low speed rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014713 CN1907697A (en) | 2005-08-05 | 2005-08-05 | Press machine head, system of workbench precision intelligence centering control and method thereof |
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| CN 200510014713 CN1907697A (en) | 2005-08-05 | 2005-08-05 | Press machine head, system of workbench precision intelligence centering control and method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357514B (en) * | 2007-12-17 | 2010-09-15 | 江苏扬力集团有限公司 | Pressing device closed-cycle control system |
| CN101863139A (en) * | 2010-06-07 | 2010-10-20 | 佛山市新信德节能环保投资管理有限公司 | Energy-saving control device for punch presses |
| CN102135409A (en) * | 2011-01-07 | 2011-07-27 | 南京理工大学 | Dynamic precision measuring device for pressing machine |
| CN102248703A (en) * | 2011-06-08 | 2011-11-23 | 天津市天锻压力机有限公司 | System for synchronously tracking pressure head and operating platform of movable rotary pressure head frame type hydraulic machine |
| CN101844299B (en) * | 2009-03-25 | 2012-01-25 | 重庆江利圣特机械制造有限责任公司 | Control method of assembly press-mounting stroke and force value of water pump of automobile engine and device thereof |
| CN102968094A (en) * | 2012-08-27 | 2013-03-13 | 蚌埠凯盛工程技术有限公司 | Automatic control system of composite material belt rolling main machine |
| CN103302217A (en) * | 2013-05-17 | 2013-09-18 | 天津市天锻压力机有限公司 | Hydraulic press control method based on video monitoring system |
| CN103640250A (en) * | 2013-12-11 | 2014-03-19 | 东方电气集团东方汽轮机有限公司 | Blade shape correcting machine tool and control system and method thereof |
| CN103697850A (en) * | 2013-12-14 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | SSI (Small Scale Integration) bus turntable angle testing method |
| CN104035377A (en) * | 2014-05-23 | 2014-09-10 | 北京航天发射技术研究所 | Automatic attitude adjustment centering control system and control method of large barrel-shaped structural part |
| CN109450207A (en) * | 2018-12-29 | 2019-03-08 | 吕言 | Machining equipment and its control method |
-
2005
- 2005-08-05 CN CN 200510014713 patent/CN1907697A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357514B (en) * | 2007-12-17 | 2010-09-15 | 江苏扬力集团有限公司 | Pressing device closed-cycle control system |
| CN101844299B (en) * | 2009-03-25 | 2012-01-25 | 重庆江利圣特机械制造有限责任公司 | Control method of assembly press-mounting stroke and force value of water pump of automobile engine and device thereof |
| CN101863139A (en) * | 2010-06-07 | 2010-10-20 | 佛山市新信德节能环保投资管理有限公司 | Energy-saving control device for punch presses |
| CN102135409A (en) * | 2011-01-07 | 2011-07-27 | 南京理工大学 | Dynamic precision measuring device for pressing machine |
| CN102248703A (en) * | 2011-06-08 | 2011-11-23 | 天津市天锻压力机有限公司 | System for synchronously tracking pressure head and operating platform of movable rotary pressure head frame type hydraulic machine |
| CN102968094A (en) * | 2012-08-27 | 2013-03-13 | 蚌埠凯盛工程技术有限公司 | Automatic control system of composite material belt rolling main machine |
| CN103302217A (en) * | 2013-05-17 | 2013-09-18 | 天津市天锻压力机有限公司 | Hydraulic press control method based on video monitoring system |
| CN103302217B (en) * | 2013-05-17 | 2015-12-23 | 天津市天锻压力机有限公司 | Based on the hydraulic press control method of video monitoring system |
| CN103640250A (en) * | 2013-12-11 | 2014-03-19 | 东方电气集团东方汽轮机有限公司 | Blade shape correcting machine tool and control system and method thereof |
| CN103640250B (en) * | 2013-12-11 | 2016-01-20 | 东方电气集团东方汽轮机有限公司 | The orthopedic lathe of blade and control system thereof and method |
| CN103697850A (en) * | 2013-12-14 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | SSI (Small Scale Integration) bus turntable angle testing method |
| CN103697850B (en) * | 2013-12-14 | 2017-06-13 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of SSI buses rotating disk angle method of testing |
| CN104035377A (en) * | 2014-05-23 | 2014-09-10 | 北京航天发射技术研究所 | Automatic attitude adjustment centering control system and control method of large barrel-shaped structural part |
| CN104035377B (en) * | 2014-05-23 | 2018-04-27 | 北京航天发射技术研究所 | Large tube-like structural member automatic-posture-adjustment centering control system and control method |
| CN109450207A (en) * | 2018-12-29 | 2019-03-08 | 吕言 | Machining equipment and its control method |
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