CN103231107A - Control system for mobile flying shears - Google Patents
Control system for mobile flying shears Download PDFInfo
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- CN103231107A CN103231107A CN2013101092932A CN201310109293A CN103231107A CN 103231107 A CN103231107 A CN 103231107A CN 2013101092932 A CN2013101092932 A CN 2013101092932A CN 201310109293 A CN201310109293 A CN 201310109293A CN 103231107 A CN103231107 A CN 103231107A
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- Prior art keywords
- flying shear
- speed
- control system
- steel plate
- portable
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- 238000000034 method Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 13
- 230000001133 acceleration Effects 0.000 claims description 11
- 238000000205 computational method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a control system for mobile flying shears. The control system is characterized in that the control system is used for setting the position, the speed and the torque on a setting unit of a control unit for a user and transmitting the position, the speed and the torque to a position control unit, a speed control unit and a current control unit respectively; and the current control unit is used for outputting a voltage to a power device for driving a flying shear motor. Due to the adoption of the structure and the method, the control system has the advantages as follows: 1, the mobile flying shear is accurately controlled at lower cost to meet the high-precision production demand; and 2, the control system is stable and reliable and has the characteristics of high control precision and low fault rate.
Description
Technical field
The present invention relates to automation field, particularly a kind of control system of portable flying shear.
Background technology
The effect of portable flying shear is under the non-stop situation of production line, realizes continuous cutting to length.Portable flying shear mainly is made up of cutting mechanism, cutter-exchange mechanism, travel mechanism and fixed mount etc., and control system comprises all-digital ac variable speed control system, the tracking of band steel, blade tracking control system.Control requirement to portable flying shear is: it is higher to shear control accuracy, the positioning control accuracy height.
Present portable flying shear control system precision is relatively poor, can't accurately cut out in the sheet material motion, when situation is serious even cause sheet material to scrap and production line stop.Some external well-known electric corporation all is to adopt the realization of high accuracy control chip to the control of flying shear to the control system of portable flying shear, and cost is very high.
At above-mentioned problem, the control system of the relatively low portable flying shear of a kind of cost is provided, being used for satisfying high-precision production demand is the problem that the prior art needs solve.
Summary of the invention
Technical problem to be solved by this invention is, a kind of control system of portable flying shear is provided, and satisfies high-precision production demand with lower cost.
For achieving the above object, technical scheme of the present invention is, a kind of control system of portable flying shear is characterized in that: described control system for the user in the setting that the enterprising line position in unit, speed, torque are set of control module and send position control unit, speed control unit, current control unit respectively to; The current control unit output voltage drives the flying shear motor to power device.
Described control system is provided with and feeds back to speed control unit after code-disc is gathered the speed of sheet material.
Described control system is provided with code-disc and gathers the real time position of sheet material and feed back to position control unit.
Described control system is calculated the speed of service V of sheet material and the length L 2 that steel plate advances according to the feedback information of code-disc; The frame of calculating portable flying shear again begins to accelerate to the distance, delta S that the process light plate of the speed identical with steel plate advances with respect to flying shear from zero-speed; The difference DELTA L of the length L 2 that calculating sheared length L1 and steel plate advance; In the process that steel plate advances, Δ L reduces gradually, when Δ L equals Δ S, starts the frame of flying shear, and it is identical with the speed of steel plate to allow frame accelerate to, in the process that the frame of flying shear is accelerated, and real-time correction acceleration.When the speed of the gantry speed of flying shear and steel plate was identical, flying shear began to shear.
The speed of service of sheet material in the described control system
In the formula: Δ P is that the step-by-step counting in the unit interval, length, the Δ T that K is the unit pulse correspondence are the unit interval; In the length L 2=Σ P*K formula that steel plate advances: Σ P is that the step-by-step counting, the K that add up are the length of unit pulse correspondence.
The computational methods of the distance, delta S that the process light plate that the frame of portable flying shear begins to accelerate to the speed identical with steel plate from zero-speed in the described control system advances with respect to flying shear at first begin computer rack and accelerate to the distance that the process mid frame of the speed identical with steel plate advances from zero-speed:
, next calculates the distance that this process light plate advances
, calculate the distance that steel plate advances with respect to flying shear at last
。
The real-time acceleration correction value of flying shear in the described control system
In the formula: a
1Real time acceleration, V for flying shear
1Real-time speed for flying shear.
A kind of control system of portable flying shear owing to adopt above-mentioned structure and method, the invention has the advantages that: 1, with lower cost, realize the accurate control to portable flying shear, satisfy high-precision production demand; 2, native system is reliable and stable, has control accuracy height, characteristics that fault rate is low.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
In Fig. 1,1, control module; 2, the unit is set; 3, position control unit; 4, speed control unit; 5, current control unit; 6, power device; 7, flying shear motor; 8 code-discs.
The specific embodiment
As shown in Figure 1, the present invention for for the user in the setting that unit 2 enterprising line positions, speed, torque are set of control module 1 and send position control unit 3, speed control unit 4, current control unit 5 respectively to; Current control unit 5 output voltages drive flying shear motor 7 for power device 6.
Control system is provided with and feeds back to speed control unit after code-disc 8 is gathered the speed of sheet material.Code-disc 8 is gathered the real time position of sheet material simultaneously and is fed back to position control unit 1.
The concrete control method of the present invention is as follows:
The sheared length L1 of step 1, setting steel plate.
Step 2, calculate the speed of service V of steel plate and the length L 2 that steel plate advances according to the feedback of code-disc 8.
In the formula:
Step-by-step counting in △ P---the unit interval.
K---the length of unit pulse correspondence, rice/pulse.△ T---the unit interval, second.
L2=Σ P*K formula (2)
In the formula: Σ P---the step-by-step counting that adds up.
K---the length of unit pulse correspondence, rice/pulse.
Step 3, the frame of calculating portable flying shear begin to accelerate to the distance that the process light plate of the speed identical with steel plate advances with respect to flying shear from zero-speed.
At first, the beginning computer rack accelerates to the distance that the process mid frame of the speed identical with steel plate advances from zero-speed.
Next calculates in this process, the distance that steel plate advances.
Just can calculate the distance that steel plate advances with respect to flying shear then.
The difference DELTA L of the length L 2 that step 4, calculating sheared length L1 and steel plate advance.In the process that steel plate advances, Δ L reduces gradually, when Δ L equals Δ S, starts the frame of flying shear, and it is identical with the speed of steel plate to allow frame accelerate to.In the process that the frame of flying shear is accelerated, real-time correction acceleration.When the speed of the gantry speed of flying shear and steel plate was identical, flying shear began to shear.
The real-time acceleration correction value of flying shear is calculated as follows:
In the formula: a
1---the real time acceleration of flying shear, meter per second
2
The real-time speed of V1---flying shear, meter per second.
The position closed loop control of flying shear and start-up point judgement, acceleration calculation and control, commentaries on classics are apart from restriction, and functions such as shearing judgement are finished by control module 1.Control module 1 receives the signals such as sheared length that PLC sends, and the length tracking signal of calculating according to code-disc 8 starts the frame mobile device after reaching the start-up point again, and calculates the acceleration of flying shear when arriving shearing point automatically.And the real-time tracking correction when the speed of the gantry speed of flying shear and sheet material is identical, triggers shear signal, and steel plate cuts off the back flying shear and slows down and get back to the HOME position, prepares to shear next time.
By reference to the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solution of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (7)
1. the control system of a portable flying shear is characterized in that: described control system for the user in the setting that the enterprising line position in unit (2), speed, torque are set of control module (1) and send position control unit (3), speed control unit (4), current control unit (5) respectively to; Current control unit (5) output voltage drives flying shear motor (7) for power device (6).
2. the control system of a kind of portable flying shear according to claim 1 is characterized in that: described control system is provided with and feeds back to speed control unit (4) after code-disc (8) is gathered the speed of sheet material.
3. the control system of a kind of portable flying shear according to claim 1 is characterized in that: described control system is provided with code-disc (8) and gathers the real time position of sheet material and feed back to position control unit (3).
4. the control system of a kind of portable flying shear according to claim 1 is characterized in that: described control system is calculated the speed of service V of sheet material and the length L 2 that steel plate advances according to the feedback information of code-disc (8); The frame of calculating portable flying shear again begins to accelerate to the distance, delta S that the process light plate of the speed identical with steel plate advances with respect to flying shear from zero-speed; The difference DELTA L of the length L 2 that calculating sheared length L1 and steel plate advance; In the process that steel plate advances, Δ L reduces gradually, when Δ L equals Δ S, starts the frame of flying shear, and it is identical with the speed of steel plate to allow frame accelerate to, in the process that the frame of flying shear is accelerated, and real-time correction acceleration.When the speed of the gantry speed of flying shear and steel plate was identical, flying shear began to shear.
5. the control system of a kind of portable flying shear according to claim 4 is characterized in that: the speed of service of sheet material in the described control system
In the formula: Δ P is that the step-by-step counting in the unit interval, length, the Δ T that K is the unit pulse correspondence are the unit interval; In the length L 2=Σ P*K formula that steel plate advances: Σ P is that the step-by-step counting, the K that add up are the length of unit pulse correspondence.
6. the control system of a kind of portable flying shear according to claim 4 is characterized in that: the computational methods of the distance, delta S that the process light plate that the frame of portable flying shear begins to accelerate to the speed identical with steel plate from zero-speed in the described control system advances with respect to flying shear at first begin computer rack and accelerate to the distance that the process mid frame of the speed identical with steel plate advances from zero-speed:
, next calculates the distance that this process light plate advances
, calculate the distance that steel plate advances with respect to flying shear at last
。
7. the control system of a kind of portable flying shear according to claim 4 is characterized in that: the real-time acceleration correction value of flying shear in the described control system
In the formula: a
1Real time acceleration, V for flying shear
1Real-time speed for flying shear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109293.2A CN103231107B (en) | 2013-04-01 | 2013-04-01 | A kind of control method of portable flying shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109293.2A CN103231107B (en) | 2013-04-01 | 2013-04-01 | A kind of control method of portable flying shear |
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| Publication Number | Publication Date |
|---|---|
| CN103231107A true CN103231107A (en) | 2013-08-07 |
| CN103231107B CN103231107B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310109293.2A Active CN103231107B (en) | 2013-04-01 | 2013-04-01 | A kind of control method of portable flying shear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470699A (en) * | 2016-06-08 | 2017-12-15 | 南通通达矽钢冲压科技有限公司 | A kind of method for shearing the continuous sawing sheet of sawing sheet line |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106721A (en) * | 1979-02-02 | 1980-08-15 | Toshiba Corp | Flying shear |
| JPH07178613A (en) * | 1993-12-24 | 1995-07-18 | Kobe Steel Ltd | Method of controlling cutting of flying shear |
| JP2007144535A (en) * | 2005-11-25 | 2007-06-14 | Toshiba Mitsubishi-Electric Industrial System Corp | Apparatus for controlling cutting operation of flying shear |
| JP2007307672A (en) * | 2006-05-19 | 2007-11-29 | Toshiba Mitsubishi-Electric Industrial System Corp | Cutting control device of flying shear |
| CN101776888A (en) * | 2009-07-10 | 2010-07-14 | 固高科技(深圳)有限公司 | Shearing method of flying shears and special motion controller for flying shears |
| CN102023610A (en) * | 2010-10-14 | 2011-04-20 | 中冶华天南京自动化工程有限公司 | Method and device for achieving positioning and shearing control of flying shear by process software |
| CN202383471U (en) * | 2011-12-08 | 2012-08-15 | 沈阳康特机电设备有限公司 | Motion controller of flying shear control system |
-
2013
- 2013-04-01 CN CN201310109293.2A patent/CN103231107B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106721A (en) * | 1979-02-02 | 1980-08-15 | Toshiba Corp | Flying shear |
| JPH07178613A (en) * | 1993-12-24 | 1995-07-18 | Kobe Steel Ltd | Method of controlling cutting of flying shear |
| JP2007144535A (en) * | 2005-11-25 | 2007-06-14 | Toshiba Mitsubishi-Electric Industrial System Corp | Apparatus for controlling cutting operation of flying shear |
| JP2007307672A (en) * | 2006-05-19 | 2007-11-29 | Toshiba Mitsubishi-Electric Industrial System Corp | Cutting control device of flying shear |
| CN101776888A (en) * | 2009-07-10 | 2010-07-14 | 固高科技(深圳)有限公司 | Shearing method of flying shears and special motion controller for flying shears |
| CN102023610A (en) * | 2010-10-14 | 2011-04-20 | 中冶华天南京自动化工程有限公司 | Method and device for achieving positioning and shearing control of flying shear by process software |
| CN202383471U (en) * | 2011-12-08 | 2012-08-15 | 沈阳康特机电设备有限公司 | Motion controller of flying shear control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470699A (en) * | 2016-06-08 | 2017-12-15 | 南通通达矽钢冲压科技有限公司 | A kind of method for shearing the continuous sawing sheet of sawing sheet line |
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|---|---|
| CN103231107B (en) | 2015-09-09 |
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Address after: 243000 Hunan west end of Hunan, Ma'anshan, Anhui Co-patentee after: MAGANG (Group) HOLDING Co.,Ltd. Patentee after: MAGANG CONTROL TECHNOLOGY Co.,Ltd. Address before: 243000 west end of Ma'anshan, Anhui, Hunan Road Co-patentee before: MAGANG (Group) HOLDING Co.,Ltd. Patentee before: MAGANG CONTROL TECHNOLOGY Co.,Ltd. |
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Address after: 243003 8 Hunan West Road, Yushan, Ma'anshan, Anhui Co-patentee after: MAGANG (Group) HOLDING Co.,Ltd. Patentee after: ANHUI MA STEEL AUTOMATION INFORMATION TECHNOLOGY CO.,LTD. Address before: 243000 Hunan West Road, Yushan, Ma'anshan, Anhui Co-patentee before: MAGANG (Group) HOLDING Co.,Ltd. Patentee before: MAGANG CONTROL TECHNOLOGY Co.,Ltd. |
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Address after: 243003 8 Hunan West Road, Yushan, Ma'anshan, Anhui Co-patentee after: MAGANG (Group) HOLDING Co.,Ltd. Patentee after: FEIMA ZHIKE INFORMATION TECHNOLOGY Co.,Ltd. Address before: 243003 8 Hunan West Road, Yushan, Ma'anshan, Anhui Co-patentee before: MAGANG (Group) HOLDING Co.,Ltd. Patentee before: ANHUI MA STEEL AUTOMATION INFORMATION TECHNOLOGY CO.,LTD. |
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Address after: No. 999, Huolishan Avenue, Yushan District, Ma'anshan, Anhui Province, 243000 Patentee after: Phima Intelligence Technology Co.,Ltd. Patentee after: MAGANG (Group) HOLDING Co.,Ltd. Address before: 243003 No. 8 West Hunan Road, Yucheng District, Ma'anshan, Anhui Patentee before: FEIMA ZHIKE INFORMATION TECHNOLOGY Co.,Ltd. Patentee before: MAGANG (Group) HOLDING Co.,Ltd. |
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