CN102794544A - PLC (Programmable Logic Controller) based control system of tube-sheet welding machine - Google Patents
PLC (Programmable Logic Controller) based control system of tube-sheet welding machine Download PDFInfo
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- CN102794544A CN102794544A CN2012102221245A CN201210222124A CN102794544A CN 102794544 A CN102794544 A CN 102794544A CN 2012102221245 A CN2012102221245 A CN 2012102221245A CN 201210222124 A CN201210222124 A CN 201210222124A CN 102794544 A CN102794544 A CN 102794544A
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Abstract
The invention discloses a PLC (Programmable Logic Controller) based control system of a tube-sheet welding machine. The PLC based control system comprises PLC hardware, a text displayer, a control button and a motor driver, wherein the PLC hardware saves user-defined control logic, the text displayer is used for carrying out human-computer interaction after being connected with the PLC hardware, the control button is used for converting an operation manner after being connected with the PLC hardware, and the motor driver is used for receiving pulse, direction and off-line signals transmitted by a PLC to control operation of a stepping motor after being connected with the PLC hardware through a cable. According to the PLC based control system disclosed by the invention, the PLC control system is used for driving an asynchronous motor to operate so that a welding gun can realize uniform circular motion, ensures that the thickness of a welded joint is uniform and consistent when a welding machine carries out a tube-sheet welding operation, and has high welding quality.
Description
Technical field
The present invention relates to a kind of tube plate welder and control system, particularly relate to a kind of tube plate welder automation control system based on PLC.
Background technology
Argon tungsten-arc welding is to add the welding method that argon gas is protected with tungsten bar as electrode; Argon gas ejection continuously from the nozzle of welding gun during welding; Form the protective layer secluding air around the electric arc, preventing it to tungsten electrode, molten bath and the proximity thermal zone of influence, thereby obtain high quality weld.The pipeline tube sheet adopts usually and is welded to connect in the heat exchangers such as the middle boiler condensation device of steam power plant, and the application of these occasions is generally high temperature and high pressure environment, so precision prescribed is higher.And manual argon arc welding technology is big owing to workpiece heating temperature graded, and shortcomings such as weldquality difference are inappropriate for application.To tube sheet argon arc welding procedure; Owing to can't move at heat exchanger internal tube plate and heat exchanger tube fixed-site; So welding gun needs circumference at the uniform velocity to rotate and accomplishes whole welding process during welding; With the assurance even weld, and manual argon arc welding connects the circular motion that can't realize welding gun, is difficult to accomplish high-quality welding.
Summary of the invention
The purpose of this invention is to provide a kind of tube plate welder control system, solve the problem that the traditional-handwork argon arc welding machine can't be realized the welding gun uniform circular motion based on PLC.
Technical scheme of the present invention is such: a kind of tube plate welder control system based on PLC; It is characterized in that: comprise PLC hardware; Text display, control button, motor driver; Store self-defined control logic in the said PLC hardware; Text display is connected with PLC hardware and is used for man-machine interaction, and control button is connected the switch operating mode that is used for PLC hardware, and motor driver is connected the pulse that is used to receive PLC and sends, direction, off line signal with the control step machine operation through cable with PLC hardware.
Said PLC hardware is connected with the PPI serial communication mode with text display.
Said PLC hardware is connected through relay with control button realizes electrical isolation.
The advantage of technical scheme provided by the present invention is, utilizes the work of PLC control system drive asynchronous machine, makes welding gun can realize uniform circular motion, throat depth uniformity when guaranteeing that welding machine carries out the tube sheet welding, and welding quality is high.
Description of drawings
Fig. 1 is the system architecture sketch map of invention.
The specific embodiment
Below in conjunction with embodiment the present invention is described further, but not as to qualification of the present invention.
As shown in Figure 1, PLC hardware, text display; Control button; Motor driver is installed in the switch board, stores self-defined control logic in the PLC hardware, and text display is connected with PLC hardware can pass through man-machine interaction mode editing parameter; It is connected with PLC hardware using PPI serial communication mode, constitutes the man-machine interface of control system.PLC hardware is connected through relay with control button realizes that electrical isolation, control button are used to realize the welding manner selection, starts, and stops to wait operation.Motor driver is connected the pulse that is used to receive PLC and sends, direction, off line signal with the control step machine operation through cable with PLC hardware.Outside the switch board, welding gun is connected with asynchronous machine in the bonding machine head, and asynchronous machine is connected with the switch board inner driver through cable, and the Induction Motor-Driven welding gun is done uniform circular motion.
Claims (3)
1. the tube plate welder control system based on PLC is characterized in that: comprise PLC hardware, text display; Control button; Motor driver stores self-defined control logic in the said PLC hardware, and text display is connected with PLC hardware and is used for man-machine interaction; Control button is connected the switch operating mode that is used for PLC hardware, motor driver is connected the pulse that is used to receive PLC and sends, direction, off line signal with the control step machine operation through cable with PLC hardware.
2. the tube plate welder control system based on PLC according to claim 1, it is characterized in that: said PLC hardware is connected with the PPI serial communication mode with text display.
3. the tube plate welder control system based on PLC according to claim 1 is characterized in that: said PLC hardware is connected through relay with control button realizes electrical isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102221245A CN102794544A (en) | 2012-06-29 | 2012-06-29 | PLC (Programmable Logic Controller) based control system of tube-sheet welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102221245A CN102794544A (en) | 2012-06-29 | 2012-06-29 | PLC (Programmable Logic Controller) based control system of tube-sheet welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102794544A true CN102794544A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102221245A Pending CN102794544A (en) | 2012-06-29 | 2012-06-29 | PLC (Programmable Logic Controller) based control system of tube-sheet welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102794544A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010065705A (en) * | 1999-12-30 | 2001-07-11 | 이구택 | Correcting apparatus of strip meandering for welder |
| CN201503554U (en) * | 2009-09-18 | 2010-06-09 | 北京石油化工学院 | composite tube welding formation device control system |
-
2012
- 2012-06-29 CN CN2012102221245A patent/CN102794544A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010065705A (en) * | 1999-12-30 | 2001-07-11 | 이구택 | Correcting apparatus of strip meandering for welder |
| CN201503554U (en) * | 2009-09-18 | 2010-06-09 | 北京石油化工学院 | composite tube welding formation device control system |
Non-Patent Citations (1)
| Title |
|---|
| 李军,任婷: "管-板焊机的PLC自动控制系统", 《焊接技术》, 30 November 2011 (2011-11-30) * |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121128 |