CN102073299A - Fixed length flying saw control system controlled by servo speed regulation programmable logic controller (PLC) - Google Patents
Fixed length flying saw control system controlled by servo speed regulation programmable logic controller (PLC) Download PDFInfo
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- CN102073299A CN102073299A CN 201010567491 CN201010567491A CN102073299A CN 102073299 A CN102073299 A CN 102073299A CN 201010567491 CN201010567491 CN 201010567491 CN 201010567491 A CN201010567491 A CN 201010567491A CN 102073299 A CN102073299 A CN 102073299A
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Abstract
The invention relates to a fixed length flying saw control system controlled by a servo speed regulation programmable logic controller (PLC), which comprises the PLC, a steel pipe coder, a high-speed counting module, an operation screen and a servo driver, wherein a central processing unit (CPU) 315-2DP with double data processing (DP) interfaces is adopted by the PLC; the DP interface 1 is connected with the servo driver, and the DP interface 2 is connected with the operation screen and other devices of a welding pipe production line; the steel pipe coder is connected with the high-speed counting module; and the high-speed counting module can be installed on a main stand of the PLC. The same PLC is shared by a unit part and a flying saw part of the fixed length flying saw control system, so that seamless connection is formed in unit control and flying saw control; signals at the interfaces are more flexible and reliable; the function expansion of a flying saw is simple; and the cost is reduced. The modules such as the PLC and the like are common types of Siemens, and a ladder diagram language is adopted by programming, so that the fixed length flying saw control system is beneficial to maintenance and spare parts of a user.
Description
Technical field
The present invention relates to the flying saw that a kind of welded pipe product line uses, particularly a kind of fixed length flying saw control system of servo speed governing Programmable Logic Controller PLC control.
Background technology
At present, the flying saw of welded pipe product line use adopts special use to fly to saw controller or Programmable Logic Controller PLC and corresponding drivers usually and finishes calculating and the control that flies to saw.This control system has following deficiency for a whole set of unit manufacturer and final user:
1, sort controller is produced specially by a few manufacturers, in case hardware damage takes place, needs to buy more changer controller to particular manufacturer, and the order cycle time is long and unpredictable.
2, sort controller has the saw program that flies of curing and limited contact function, makes troubles for the debugging of a whole set of welded pipe product line manufacturer and final user's maintenance, function expansion.
3, the control of unit part needs a Programmable Logic Controller PLC in the welded pipe product line, needs an independent controller or Programmable Logic Controller PLC and fly to saw control, and this has caused waste to a certain extent for a whole set of production line manufacturer.
Summary of the invention
For solving the problems referred to above of prior art, the objective of the invention is at existing flying saw for the problem that welded tube equipment manufacturers exist, the fixed length flying saw control system of a kind of simple in structure, highly versatile and servo cheaply speed governing Programmable Logic Controller PLC control is provided.
A kind of fixed length flying saw control system of servo speed governing Programmable Logic Controller PLC control, comprise Programmable Logic Controller PLC, steel pipe scrambler, high speed counting module, operation screen and servo-driver, described Programmable Logic Controller PLC adopts the CPU315-2DP of two DP interfaces, and its DP1 interface links to each other with servo-driver, the DP2 interface is connected with operation screen and other equipment of welded pipe product line; Described steel pipe scrambler is connected with high speed counting module, and described high speed counting module is installed on the mainframe of Programmable Logic Controller PLC.
Servo-driver of the present invention adopts the S120 servo-driver of Siemens SINAMICS series, and high speed counting module adopts the FM350-2 high speed counting module.
Compared with prior art, the present invention has following beneficial effect:
1, because unit of the present invention part and fly to saw Programmable Logic Controller PLC of partial common makes unit control form seamless link with flying saw control, and interface signal is flexibility and reliability more, it is simple that the function expansion that flies to saw becomes.Also reduced simultaneously cost.Programmable Logic Controller PLC, servo-driver and high speed counting module all are Siemens's common type, and trapezoid figure language is adopted in programming, are beneficial to user's maintenance and spare part.
2, because used parts of the present invention and components and parts and programming language all are that present stage is the most frequently used, so versatility and compatible good.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is a program flow diagram of the present invention.
Fig. 3 is a functional structure chart of the present invention.
Among the figure: 1, Programmable Logic Controller PLC; 2, counting module; 3, servo-driver, 4, operation screen; 5, scale dolly; 6, servomotor; 7, steel pipe scrambler.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.As Figure 1-3, a kind of fixed length flying saw control system of servo speed governing Programmable Logic Controller PLC1 control, comprise Programmable Logic Controller PLC1, steel pipe scrambler 7, high speed counting module 2, operation screen 4 and servo-driver 3, described Programmable Logic Controller PLC1 adopts the CPU315-2DP of two DP interfaces, and its DP1 interface links to each other with servo-driver 3, the DP2 interface is connected with operation screen 4 and other equipment of welded pipe product line; Described steel pipe scrambler 7 is connected with high speed counting module 2, and described high speed counting module 2 is installed on the mainframe of Programmable Logic Controller PLC1.Described servo-driver 3 adopts the S120 servo-driver 3 of Siemens SINAMICS series, and high speed counting module 2 adopts FM350-2 high speed counting module 2.
Principle of work of the present invention is as follows: the DP1 interface of Programmable Logic Controller PLC1 links to each other with servo-driver 3, the running of servo-driver 3 by servo power cable control servomotor 6, reads the position and the velocity information of scale dolly 5 and controls the speed of scale dolly 5 by encoded servo device feedback cable; The DP2 interface of Programmable Logic Controller PLC1 is used for attended operation screen 4 and other equipment of welded pipe product line.The steel pipe scrambler is received on the high speed counting module, reads the position and the velocity information of scale dolly 5 and controls the speed of scale dolly 5; The DP2 interface is used for attended operation screen 4 and other equipment of welded pipe product line.Steel pipe scrambler 7 is received on the high speed counting module 2, is used to detect the length and the linear velocity of steel pipe.High speed counting module 2 is placed on the Programmable Logic Controller PLC1 mainframe, so that read scrambler numerical value the soonest.
Illustrate that below by embodiment the concrete course of work of the present invention is as follows: at first setting up one is main website with Programmable Logic Controller PLC1, and servo-driver 3 is the profibus network of slave station, and communication speed is 12Mbps.Message preferred site control criterion message can be read the physical location s and the actual linear velocity v of scale dolly 5 by status word
b, can control the linear velocity v of scale dolly 5 and add, subtract the acceleration multiplying power by control word simultaneously.The acceleration of setting scale dolly 5 in the servo-driver 3 is a.Steel pipe scrambler 7 is received on two passages of high speed counting module 2, and a path setting is a count mode, and what be used for measuring steel pipe goes out length of tube c.Another path setting is a measurement pattern, is used for measuring the linear velocity v of steel pipe
0The girth of steel pipe measuring roller is 400mm, and steel pipe scrambler 7 is 1000 lines, and then making the resolution of this measuring system by the processing of counting module 2 quadruples is 0.1mm.Unified in order to reach unit, the unit of preseting length L and scale dolly 5 physical location s also is 0.1mm.
b＝c-L。
By the real-time monitoring calculation of Programmable Logic Controller PLC1,
When
The time,
Programmable Logic Controller PLC1 sends startup command to servo-driver 3, and given speed
In the formula, K is a scale-up factor, adjusts according to the field adjustable situation, is generally 2～6.
When b＞s is scale dolly 5 positions when lagging behind the sawing position, v＞v
0Be that scale dolly 5 speed are greater than steel pipe speed; Equally when b＜s be scale dolly 5 positions when being ahead of the sawing position, v＜v
0Be that scale dolly 5 speed are less than steel pipe speed.The difference of b-s is reduced, finally compares when Programmable Logic Controller PLC1 calculates,
When | b-s|＜L
dAnd | v-v
0|＜v
dThe time, L wherein
dFor allowing maximum length error, v
dBe to allow the maximal rate error, satisfied flying sawing and cut double requirements position and speed.Carry out sawing after clamp clamps, simultaneously scale dolly 5 current location s are write in the counter, promptly allow c=s.After sawing is finished clamp is opened, in order to circulation next time.
As shown in Figure 3, the present invention constitutes a feedforward closed-loop control system by Programmable Logic Controller PLC1, servo-driver 3 and feedback system and steel pipe measuring system.
As shown in Figure 2, configure cut lengths by operation screen 4, press automatic operation button, the sawing spindle motor starts, and Programmable Logic Controller PLC1 reads going out length of tube numerical value and judging whether to satisfy scale dolly 5 entry conditions of counting module 2.When condition satisfied, Programmable Logic Controller PLC1 sent enabled instruction and adjusts given speed in real time according to scale dolly 5 positions to servo-driver 3 by profibus, and when the position of judging satisfied cutting, velocity conditions, clamp clamps the back sawing.In the time of sawing current dolly position s is write in the counter.Treat that dolly goes to fast return behind the certain position and reduce the acceleration multiplying power of scale dolly 5, to reduce physical shock.Enter next circulation after returning initial point.
Claims (2)
1. the fixed length flying saw control system of a servo speed governing Programmable Logic Controller PLC (1) control, comprise Programmable Logic Controller PLC (1), steel pipe scrambler (7), high speed counting module (2), operation screen (4) and servo-driver (3), it is characterized in that: described Programmable Logic Controller PLC (1) adopts the CPU315-2DP of two DP interfaces, and its DP1 interface links to each other with servo-driver (3), the DP2 interface is connected with operation screen (4) and other equipment of welded pipe product line; Described steel pipe scrambler (7) is connected with high speed counting module (2), and described high speed counting module (2) is installed on the mainframe of Programmable Logic Controller PLC (1).
2. the fixed length flying saw control system of a kind of servo speed governing Programmable Logic Controller PLC according to claim 1 (1) control, it is characterized in that: described servo-driver (3) adopts the S120 servo-driver (3) of Siemens SINAMICS series, and high speed counting module (2) adopts FM350-2 high speed counting module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010567491 CN102073299A (en) | 2010-11-30 | 2010-11-30 | Fixed length flying saw control system controlled by servo speed regulation programmable logic controller (PLC) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010567491 CN102073299A (en) | 2010-11-30 | 2010-11-30 | Fixed length flying saw control system controlled by servo speed regulation programmable logic controller (PLC) |
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| CN102073299A true CN102073299A (en) | 2011-05-25 |
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| CN 201010567491 Pending CN102073299A (en) | 2010-11-30 | 2010-11-30 | Fixed length flying saw control system controlled by servo speed regulation programmable logic controller (PLC) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446307A (en) * | 2015-12-31 | 2016-03-30 | 大连三高科技发展有限公司 | Precise stainless steel welded pipe production system |
| CN105643360A (en) * | 2015-12-31 | 2016-06-08 | 大连三高科技发展有限公司 | Control method of empty curving molding set for straight seam electric resistance welded pipe |
| CN113172474A (en) * | 2021-04-06 | 2021-07-27 | 浙江璐远机械科技有限公司 | Sawing machine feeding control method and sawing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2617522Y (en) * | 2003-05-26 | 2004-05-26 | 沈阳工业学院 | Automatic controller of fly saw |
| CN1858667A (en) * | 2006-05-29 | 2006-11-08 | 上海德重科技有限公司 | Compensating method for multiple shaft synchronou position error of magnetic stick flat screen printer |
-
2010
- 2010-11-30 CN CN 201010567491 patent/CN102073299A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2617522Y (en) * | 2003-05-26 | 2004-05-26 | 沈阳工业学院 | Automatic controller of fly saw |
| CN1858667A (en) * | 2006-05-29 | 2006-11-08 | 上海德重科技有限公司 | Compensating method for multiple shaft synchronou position error of magnetic stick flat screen printer |
Non-Patent Citations (1)
| Title |
|---|
| 《机电工程》 20041231 崔增柱，刘元开，项占琴 基于PLC的钢管测长定尺飞锯控制系统的设计 第21卷, 第3期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446307A (en) * | 2015-12-31 | 2016-03-30 | 大连三高科技发展有限公司 | Precise stainless steel welded pipe production system |
| CN105643360A (en) * | 2015-12-31 | 2016-06-08 | 大连三高科技发展有限公司 | Control method of empty curving molding set for straight seam electric resistance welded pipe |
| CN105446307B (en) * | 2015-12-31 | 2018-07-31 | 大连三高科技发展有限公司 | Accurate stainless steel welded pipe production system |
| CN113172474A (en) * | 2021-04-06 | 2021-07-27 | 浙江璐远机械科技有限公司 | Sawing machine feeding control method and sawing machine |
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Application publication date: 20110525 |