CN102979788A - Pneumatic mechanical positioning control method - Google Patents
Pneumatic mechanical positioning control method Download PDFInfo
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- CN102979788A CN102979788A CN2012104791296A CN201210479129A CN102979788A CN 102979788 A CN102979788 A CN 102979788A CN 2012104791296 A CN2012104791296 A CN 2012104791296A CN 201210479129 A CN201210479129 A CN 201210479129A CN 102979788 A CN102979788 A CN 102979788A
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- control method
- cylinder
- servovalve
- encoder
- controller
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Abstract
The invention discloses a pneumatic mechanical positioning control method, comprising a gas storage tank G, a servo valve F, an air cylinder K, an encoder P and a controller. The pneumatic mechanical positioning control method is used for realizing a mechanical positioning method taking gas as power, and has the characteristics of simplicity, reliability and low maintenance threshold.
Description
Technical field
The invention belongs to mechanical control field, relate in particular to a kind of pneumatic machinery position control method in the pneumatic machinery control.
Background technique
Actuating motor has been adopted in a large amount of motion controls in the modern machinery control, although many advantages are arranged, safeguards that professional degree is higher, needs a large amount of management to drop into.In some occasion, need to be simple and reliable, safeguard the pneumatic machinery positioning control that threshold is lower.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic machinery position control method, be used for realizing a kind of mechanical localization method take gas as power, have simple, reliable, safeguard the characteristics that threshold is low.
The technological scheme that realizes above-mentioned purpose is: a kind of pneumatic machinery position control method, in comprising gas holder G, servovalve F, cylinder K, encoder P and controller;
The outlet pipe of described gas holder G links to each other with the suction tude of described servovalve F, and the steam outlet pipe of described servovalve F links to each other in the suction tude of described cylinder K, and the outlet pipe of described cylinder K links to each other with the admission line of described gas holder G;
The piston of described cylinder K connects the described encoder P on the mechanical transmission, and the output distance signal of described encoder P accesses described controller, and the D/A pin of described controller connects the control end of described servovalve F.
Above-mentioned gas holder G is as the energy source of system, and its volume is 10 times of volume of above-mentioned cylinder K.
Above-mentioned servovalve F can linearly adjust gas flow so that the piston thrust of above-mentioned cylinder K is controlled according to following formula: f
k=a*V, wherein a is linear coefficient, V is the magnitude of voltage of the D/A pin output of above-mentioned controller.
The pulse equivalency of above-mentioned encoder P is n, and the pulse sum M=S/n of rotation, S are the stroke of the piston of above-mentioned cylinder K.
The invention has the beneficial effects as follows: realize a kind of mechanical localization method take gas as power.Have simple, reliable, safeguard the characteristics that threshold is low.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Please refer to Fig. 1, provided a kind of pneumatic machinery position control method among the figure, in comprising gas holder G, servovalve F, cylinder K, encoder P and controller;
The outlet pipe of gas holder G links to each other with the suction tude of servovalve F, and the steam outlet pipe of servovalve F links to each other in the suction tude of cylinder K, and the outlet pipe of cylinder K links to each other with the admission line of gas holder G;
The piston of cylinder K connects the encoder P on the mechanical transmission, the output distance signal access controller of encoder P, and the D/A pin of controller connects the control end of servovalve F.
Gas holder G is as the energy source of system, and its volume is 10 times of volume of cylinder K.
Servovalve F can linearly adjust gas flow so that the piston thrust of cylinder K is controlled according to following formula: f
k=a*V, wherein a is linear coefficient, V is the magnitude of voltage of the D/A pin output of controller.
The pulse equivalency of encoder P is n, and the pulse sum M=S/n of rotation, S are the stroke of the piston of cylinder K.
Principle of the present invention is:
Δ S is the traveled distance error of the piston of cylinder K, and the umber of pulse of required walking is: Δ M=Δ S/n, controller convert required voltage Δ V to after receiving Δ M, put on and obtain Δ f on the servovalve
k=a* Δ V, the piston acceleration that obtains and Δ f
kBe directly proportional, remedy the traveled distance error.This startup closed loop control has realized a kind of mechanical localization method take gas as power.Have simple, reliable, safeguard the characteristics that threshold is low.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (4)
1. a pneumatic machinery position control method is characterized in that, comprises gas holder G, servovalve F, cylinder K, encoder P and controller;
The outlet pipe of described gas holder G links to each other with the suction tude of described servovalve F, and the steam outlet pipe of described servovalve F links to each other in the suction tude of described cylinder K, and the outlet pipe of described cylinder K links to each other with the admission line of described gas holder G;
The piston of described cylinder K connects the described encoder P on the mechanical transmission, and the output distance signal of described encoder P accesses described controller, and the D/A pin of described controller connects the control end of described servovalve F.
2. a kind of pneumatic machinery position control method according to claim 1 is characterized in that, described gas holder G is as the energy source of system, and its volume is 10 times of volume of described cylinder K.
3. a kind of pneumatic machinery position control method according to claim 1 is characterized in that, the flow that described servovalve F can linearly adjust gas is so that the piston thrust of described cylinder K is controlled according to following formula: f
k=a*V, wherein a is linear coefficient, V is the magnitude of voltage of the D/A pin output of described controller.
4. a kind of pneumatic machinery position control method according to claim 1 is characterized in that, the pulse equivalency of described encoder P is n, and the pulse sum M=S/n of rotation, S are the stroke of the piston of described cylinder K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104791296A CN102979788A (en) | 2012-11-22 | 2012-11-22 | Pneumatic mechanical positioning control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104791296A CN102979788A (en) | 2012-11-22 | 2012-11-22 | Pneumatic mechanical positioning control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102979788A true CN102979788A (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104791296A Pending CN102979788A (en) | 2012-11-22 | 2012-11-22 | Pneumatic mechanical positioning control method |
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| CN (1) | CN102979788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671640A (en) * | 2015-01-16 | 2015-06-03 | 广东华兴玻璃股份有限公司 | Paratactic machine core gas circuit control system |
Citations (5)
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|---|---|---|---|---|
| US6234060B1 (en) * | 1999-03-08 | 2001-05-22 | Lord Corporation | Controllable pneumatic apparatus including a rotary-acting brake with field responsive medium and control method therefor |
| CN101476490A (en) * | 2009-01-16 | 2009-07-08 | 华南理工大学 | Expansion ratio adjustable pneumatic engine for automobile and its exhaust pressure control method |
| CN102303315A (en) * | 2011-08-22 | 2012-01-04 | 华南理工大学 | Device for pneumatically driving two free flexible mechanical arms and method for controlling device |
| CN202388534U (en) * | 2012-01-06 | 2012-08-22 | 陕西科技大学 | Waste aluminum-plastic film belt cutting device of aluminum-plastic composite easy-open lid molding machine |
| CN102681439A (en) * | 2012-05-23 | 2012-09-19 | 昆明理工大学 | Fuzzy adaptive pneumatic servo control system for flat knitting machine |
-
2012
- 2012-11-22 CN CN2012104791296A patent/CN102979788A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234060B1 (en) * | 1999-03-08 | 2001-05-22 | Lord Corporation | Controllable pneumatic apparatus including a rotary-acting brake with field responsive medium and control method therefor |
| CN101476490A (en) * | 2009-01-16 | 2009-07-08 | 华南理工大学 | Expansion ratio adjustable pneumatic engine for automobile and its exhaust pressure control method |
| CN102303315A (en) * | 2011-08-22 | 2012-01-04 | 华南理工大学 | Device for pneumatically driving two free flexible mechanical arms and method for controlling device |
| CN202388534U (en) * | 2012-01-06 | 2012-08-22 | 陕西科技大学 | Waste aluminum-plastic film belt cutting device of aluminum-plastic composite easy-open lid molding machine |
| CN102681439A (en) * | 2012-05-23 | 2012-09-19 | 昆明理工大学 | Fuzzy adaptive pneumatic servo control system for flat knitting machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671640A (en) * | 2015-01-16 | 2015-06-03 | 广东华兴玻璃股份有限公司 | Paratactic machine core gas circuit control system |
| CN104671640B (en) * | 2015-01-16 | 2017-07-07 | 广东华兴玻璃股份有限公司 | Mechanism of I. S. Machine fuse air-path control system |
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Application publication date: 20130320 |