CN102331740B - System and method for automatically controlling multi-wire cutting machine - Google Patents
System and method for automatically controlling multi-wire cutting machine Download PDFInfo
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- CN102331740B CN102331740B CN 201110196203 CN201110196203A CN102331740B CN 102331740 B CN102331740 B CN 102331740B CN 201110196203 CN201110196203 CN 201110196203 CN 201110196203 A CN201110196203 A CN 201110196203A CN 102331740 B CN102331740 B CN 102331740B
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Abstract
The invention discloses a system for automatically controlling a multi-wire cutting machine and is applicable to the field of machine tool processing. The system comprises a working table server, a main cutting server, a pay-off server, a take-up server, a tension sensor and a programmable logic controller (PLC), wherein the working table server is used for driving a cut material to perform positioning motion according to preset process parameters; the main cutting server, the pay-off server and the take-up server are respectively used for controlling cutting motion, pay-off motion and take-up motion; the tension sensor is used for acquiring pay-off tension and take-up tension; and the PLC is used for performing proportion integration differentiation (PID) operation according to the pay-off tension and the take-up tension and adjusting the speed ratio of the pay-off server to the main cutting server and the speed ratio of the take-up server to the main cutting server. The invention also provides a method for automatically controlling the multi-wire cutting machine. By adoption of the method, the synchronous proportional linkage of cutting, pay-off and take-up can be realized, so the stability of the tension during multi-wire cutting is relatively higher, the consistency of processed workpieces is better, the degree of automation of the system is higher, and the system is more convenient to use.
Description
Technical field
The present invention relates to the machine tooling field, relate in particular to a kind of multi-line cutting machine automatic control system and method.
Background technology
Multi-wire saw refers to a kind of by high speed to-and-fro movement wiry, abrasive material is brought into the workpiece machining area grind, and the hard brittle materials such as semi-conductor silicon chip once is cut into simultaneously a kind of novel cutting process method of hundreds of plate sheets.It is different from the cutting modes such as traditional knife saw sheet, grinding wheel, also be different from the cutting of advanced cut and inner circle, its principle is that the steel wire by a high-speed motion drives the cutting blade material that is attached on the steel wire silicon rod is rubbed, thereby reaches cutting effect.
Silicon chip is the main production material in the fields such as semiconductor and photovoltaic, the Multi-wire wafer cutting technique is present more advanced silicon chip process technology in the world, in whole process, steel wire is by the guiding of tens guide rollers, form a bracing cable net in primary spool, and workpiece to be processed is realized the feeding of workpiece by the rising of worktable.The Multi-wire wafer cutting technique is compared efficient height with other technologies, production capacity is high, and therefore the precision advantages of higher is to adopt at present the most widely silicon chip cutting technique.
Summary of the invention
The purpose of this invention is to provide a kind of multi-line cutting machine automatic control system and method, when running up to solve multi-wire saw equipment, realize stability control and the conforming problem of processing work to tension force.
In order to reach the foregoing invention purpose, the present invention proposes a kind of multi-line cutting machine automatic control system, described system realizes by following technical scheme:
A kind of multi-line cutting machine automatic control system, described system comprises:
Worktable is servo, is used for according to predefined technological parameter, and drive is cut material and positions motion;
Main cutting is servo, and unwrapping wire is servo, and take-up is servo, is used for respectively the motion of cutting, unwrapping wire, take-up is controlled;
Tension pick-up is used for gathering the tension force of unwrapping wire and take-up;
The PLC logic controller, be used for carrying out the PID computing according to the tension force of described unwrapping wire and the tension force of take-up, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realize that described main cutting is servo, the servo and servo on year-on-year basis interlock of take-up of unwrapping wire.
Further preferably, after finish predefined cutting-height location, the servo automatic cut-off system motion of worktable.
Further preferably, described system also comprises operation interface, is used for the technological parameter of the system that presets.
Further preferably, the servo side of described take-up comprises that also winding displacement is servo, and described winding displacement is servo to be used for according to electric cam control used wire is carried out reciprocal winding displacement.
In order to realize goal of the invention of the present invention, the embodiment of the invention also provides a kind of multi-line cutting machine autocontrol method, and described method comprises:
Worktable is servo according to predefined technological parameter, and drive is cut material and positions motion;
Respectively the motion of cutting, unwrapping wire, take-up is controlled, and gathered respectively the tension force of unwrapping wire and take-up;
According to the tension force of described unwrapping wire and the tension force of take-up, carry out the PID computing, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realizes that described main cutting is servo, unwrapping wire servo with the servo on year-on-year basis interlock of take-up.
Further preferably, after finish predefined cutting-height location, the servo automatic cut-off system motion of worktable.
Further preferably, described method also comprises: described technological parameter presets by an operation interface.
Further preferably, described method also comprises, also configures a winding displacement in the servo side of described take-up servo, the servo reciprocal winding displacement that control is carried out take-up to used wire according to electric cam of described winding displacement.
Compared with prior art, the multi-line cutting machine automatic control system of the embodiment of the invention and method can realize cutting, the synchronous proportional interlock of unwrapping wire and take-up, so that the tension stability during multi-wire saw is higher, thereby the consistance of processing work is better, and the control system automaticity of the embodiment of the invention is higher, uses convenient.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easily understand.
Fig. 1 is embodiment of the invention multi-line cutting machine motion structure schematic diagram;
Fig. 2 is the composition schematic diagram of a kind of multi-line cutting machine automatic control system of the embodiment of the invention;
Fig. 3 is the composition schematic diagram of the another kind of multi-line cutting machine automatic control system of the embodiment of the invention;
Fig. 4 is embodiment of the invention multi-line cutting machine automatic control system operational flow diagram;
Fig. 5 is a kind of multi-line cutting machine autocontrol method of embodiment of the invention process flow diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As illustrated in fig. 1 and 2, be a kind of multi-line cutting machine automatic control system of the embodiment of the invention 1, described system comprises:
Worktable is servo, is used for according to predefined technological parameter, and drive is cut material and positions motion;
Main cutting is servo, and unwrapping wire is servo, and take-up is servo, is used for respectively the motion of cutting, unwrapping wire, take-up is controlled;
Tension pick-up is used for gathering the tension force of unwrapping wire and take-up;
The PLC logic controller, be used for carrying out the PID computing according to the tension force of described unwrapping wire and the tension force of take-up, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realize that described main cutting is servo, the servo and servo on year-on-year basis interlock of take-up of unwrapping wire.
Further preferably, after finish predefined cutting-height location, the servo automatic cut-off system motion of worktable.
Further preferably, described system also comprises operation interface, is used for the technological parameter of the system that presets.
Further preferably, described operation interface can adopt touch-screen, manually to set in real time technological parameter.
Further preferably, as shown in Figure 3, the servo side of described take-up comprises that also winding displacement is servo, and described winding displacement is servo to be used for according to electric cam control used wire is carried out reciprocal winding displacement.
The key of multi-line cutting machine automatic control system is the synchronous proportional interlock that main cutting is servo, unwrapping wire is servo and take-up is servo, guarantees that the tension force of unwrapping wire side and take-up side is steady, thereby guarantees the quality of processing work.In the operational process of multi-line cutting machine, each axle requires high responsiveness and high stability.Programmable logic controller (PLC) PLC is servo as master control with each, realizes respectively logic control and motion control.
The servo technological parameter according to setting of worktable, drive is cut material and positions motion.After finish the cutting-height location of setting, the automatic cut-off system motion.
The cutting of multi-line cutting machine is servo as system spindle, the to-and-fro movement that forwards and reverses according to the technological parameter that sets in advance.According to unwrapping wire side tension measurements and take-up side tension measurements (the tension pick-up sensing obtains), control adjustment unwrapping wire is servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up respectively, realize with the PID computing in the program, to guarantee the stability of tension value.
Preferably under the embodiment, it is servo that system's take-up side also disposes winding displacement, adopts the electric cam control method, and used wire is carried out reciprocal winding displacement, thereby the winding displacement during take-up can be distributed in the bobbin uniformly, to avoid to pile up and interweave.
Compared with prior art, the multi-line cutting machine automatic control system of the embodiment of the invention can realize cutting, the synchronous proportional interlock of unwrapping wire and take-up, so that the tension stability during multi-wire saw is higher, thereby the consistance of processing work is better, and the control system automaticity of the embodiment of the invention is higher, uses convenient.Implementation shows, the multi-line cutting machine of the embodiment of the invention is the highest can be moved under the 500m/min parameter, the servo 1500r/min that reaches of main cutting, and tension force is regulated automatically, and is stabilized in the 0.3N.Tension force control is steady, and the material surface of cutting is smooth, consistency of thickness.
As shown in Figure 4, the cutting process of whole rapidoprint is as follows:
At first, carry out the ew line coiling, the gauze of the whole multi-line cutting machine of layout forms the cutting net in primary spool;
Then carry out tension calibration, this moment can rule of thumb be worth or the technological parameter of default carries out tension calibration;
Carry out tension synchronous, this is comparatively crucial place again, also can cut according in the past empirical value or the characteristic of cutting material, the tension synchronous of unwrapping wire and take-up, makes the tension force of system be in initial plateau;
This moment some technological parameters that can be correlated with setting, finish the setting of technological parameter after, just begin the automatic multi-wire saw of cutting material.
As shown in Figure 5, the embodiment of the invention provides a kind of control method of multi-thread surface trimming, and described method comprises:
Worktable is servo according to predefined technological parameter, and drive is cut material and positions motion;
Respectively the motion of cutting, unwrapping wire, take-up is controlled, and gathered respectively the tension force of unwrapping wire and take-up;
According to the tension force of described unwrapping wire and the tension force of take-up, carry out the PID computing, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realizes that described main cutting is servo, unwrapping wire servo with the servo on year-on-year basis interlock of take-up.
Further preferably, after finish predefined cutting-height location, the servo automatic cut-off system motion of worktable.
The key of the automatic control of multi-line cutting machine is the synchronous proportional interlock that main cutting is servo, unwrapping wire is servo and take-up is servo, guarantees that the tension force of unwrapping wire side and take-up side is steady, thereby guarantees the quality of processing work.In the operational process of multi-line cutting machine, each axle requires high responsiveness and high stability.Programmable logic controller (PLC) PLC is servo as master control with each, realizes respectively logic control and motion control.
The servo technological parameter according to setting of worktable, drive is cut material and positions motion.After finish the cutting-height location of setting, the automatic cut-off system motion.
The cutting of multi-line cutting machine is servo as system spindle, the to-and-fro movement that forwards and reverses according to the technological parameter that sets in advance.According to unwrapping wire side tension measurements and take-up side tension measurements (the tension pick-up sensing obtains), control adjustment unwrapping wire is servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up respectively, realize with the PID computing in the program, to guarantee the stability of tension value.
Further preferably, described method also comprises, also configure a winding displacement in the servo side of described take-up servo, the servo reciprocal winding displacement that control is carried out take-up to used wire according to electric cam of described winding displacement, adopt the electric cam control method, used wire is carried out reciprocal winding displacement, thereby the winding displacement during take-up can be distributed in uniformly in the bobbin, to avoid and pile up and interweave.
Compared with prior art, the multi-line cutting machine autocontrol method of the embodiment of the invention can be realized cutting, the synchronous proportional interlock of unwrapping wire and take-up, so that the tension stability during multi-wire saw is higher, thereby the consistance of processing work is better, and the control system automaticity of the embodiment of the invention is higher, uses convenient.
It should be noted that; above content is in conjunction with concrete embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; under above-mentioned guidance of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection scope of the present invention.
Claims (6)
1. a multi-line cutting machine automatic control system is characterized in that, described system comprises:
Worktable is servo, is used for according to predefined technological parameter, and drive is cut material and positions motion, after finish predefined cutting-height location, and the servo automatic cut-off system motion of worktable;
Main cutting is servo, and unwrapping wire is servo, and take-up is servo, is used for respectively the motion of cutting, unwrapping wire, take-up is controlled;
Tension pick-up is used for gathering the tension force of unwrapping wire and take-up;
The PLC logic controller, be used for according to the tension force of described unwrapping wire and the tension force of take-up, carry out the PID computing, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realize that described main cutting is servo, servo and the servo on year-on-year basis interlock of take-up of unwrapping wire, PLC logic controller and each are servo as master control, realize respectively logic control and motion control.
2. the system as claimed in claim 1 is characterized in that, described system also comprises operation interface, is used for the technological parameter of the system that presets.
3. system as claimed in claim 2 is characterized in that, the servo side of described take-up comprises that also winding displacement is servo, and described winding displacement is servo to be used for according to electric cam control used wire is carried out reciprocal winding displacement.
4. a multi-line cutting machine autocontrol method is characterized in that, described method comprises:
Worktable is servo according to predefined technological parameter, and drive is cut material and positions motion, after finish predefined cutting-height location, and the servo automatic cut-off system motion of worktable;
Respectively the motion of cutting, unwrapping wire, take-up is controlled, and gathered respectively the tension force of unwrapping wire and take-up;
According to the tension force of described unwrapping wire and the tension force of take-up, carry out the PID computing, adjust described unwrapping wire servo servo to the servo velocity ratio of main cutting to main cutting servo velocity ratio and take-up, realize that described main cutting is servo, servo and the servo on year-on-year basis interlock of take-up of unwrapping wire, the PLC logic controller is servo as master control with each, realizes respectively logic control and motion control.
5. method as claimed in claim 4 is characterized in that, described method also comprises:
Described technological parameter presets by an operation interface.
6. method as claimed in claim 5 is characterized in that, described method also comprises:
Also configure a winding displacement in the servo side of described take-up servo, the servo reciprocal winding displacement that control is carried out take-up to used wire according to electric cam of described winding displacement.
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| CN 201110196203 CN102331740B (en) | 2011-07-13 | 2011-07-13 | System and method for automatically controlling multi-wire cutting machine |
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| CN 201110196203 CN102331740B (en) | 2011-07-13 | 2011-07-13 | System and method for automatically controlling multi-wire cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102626953A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Servo control system of linear cutting machine |
| CN102848481A (en) * | 2012-10-12 | 2013-01-02 | 蠡县英利新能源有限公司 | Cutting process for cutting silicon ingot |
| CN104015267A (en) * | 2013-03-01 | 2014-09-03 | 宁夏嘉翔自控技术有限公司 | Automatic control system of high-precision multi-line crisp and hard material slicer |
| CN103878893B (en) * | 2013-12-31 | 2015-11-18 | 江苏和亿自动化科技有限公司 | Multi-line cutting machine automatic control system and method |
| CN103760829B (en) * | 2014-01-28 | 2017-01-18 | 湘潭大学 | Workbench speed control method for non-bending sensor of multi-wire cutting machine |
| CN104441284A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Deformation PID control device on paying off machine |
| CN109877985B (en) * | 2019-04-24 | 2021-02-26 | 宇晶机器（长沙）有限公司 | Multi-wire saw tension control system based on image processing |
| CN110000941B (en) * | 2019-04-28 | 2021-01-22 | 宇晶机器（长沙）有限公司 | Multi-wire cutting machine workbench feeding speed control system and control method thereof |
| CN116197475B (en) * | 2023-02-06 | 2024-05-17 | 青岛高测科技股份有限公司 | Feed control method, medium, control device of feed assembly and wire cutting machine |
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| JPH105862A (en) * | 1996-06-26 | 1998-01-13 | Mitsubishi Plastics Ind Ltd | Slitter winding method |
| DE19804735B4 (en) * | 1998-02-06 | 2006-06-29 | Windmöller & Hölscher Kg | Method and device for aligning two webs brought together into a multilayer web |
| CN2818038Y (en) * | 2005-08-25 | 2006-09-20 | 江汉大学 | Retarded controller of electrode wire constant tension for fast-walking thread cutting machine tool |
| CN101209572A (en) * | 2007-12-24 | 2008-07-02 | 湖南宇晶机器实业有限公司 | Multi-line cutting machine |
| CN101301734B (en) * | 2008-06-25 | 2010-12-08 | 周文敏 | Microcomputer control multiline cutting machine |
| CN201842545U (en) * | 2010-09-25 | 2011-05-25 | 四川华纺银华有限责任公司 | Tension control system based on PLC (programmable logic controller) |
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