KR940006200B1 - Operating pressure maintaining device of CO2 laser oscillator - Google Patents
Operating pressure maintaining device of CO2 laser oscillator Download PDFInfo
- Publication number
- KR940006200B1 KR940006200B1 KR1019910023114A KR910023114A KR940006200B1 KR 940006200 B1 KR940006200 B1 KR 940006200B1 KR 1019910023114 A KR1019910023114 A KR 1019910023114A KR 910023114 A KR910023114 A KR 910023114A KR 940006200 B1 KR940006200 B1 KR 940006200B1
- Authority
- KR
- South Korea
- Prior art keywords
- laser oscillator
- pressure
- operating pressure
- maintaining device
- solenoid valve
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Lasers (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 발명장치의 블록구성도.1 is a block diagram of an apparatus of the present invention.
제2도는 본 발명장치에 적용되는 PLC의 입출력 시퀸스회로도.2 is an input / output sequence circuit diagram of a PLC applied to the apparatus of the present invention.
제3도는 본 발명장치의 동작설명을 위한 타임챠트.3 is a time chart for explaining the operation of the apparatus of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 압력센서 2 : PLC(프로그램로직제어기)1: Pressure sensor 2: PLC (program logic controller)
3 : 솔레노이드밸브 4 : 레이저 발진기3: solenoid valve 4: laser oscillator
TM : 타이머 P0, T0: 입력단자TM: Timer P 0 , T 0 : Input terminal
P30: 출력단자P 30 : Output terminal
본 발명은 프로그래머블 로직 콘트롤러(PLC)의 정해진 프로그램에 의해 이산화탄소 레이저 발진기 내부의 작동입력을 항상 일정한 압력으로 유지할 수 있도록 한 이산화탄소 레이저 발진기의 작동압력 유지장치에 관한 것이다. 일반적으로 이산화탄소 레이저 발진기의 정상적인 작동압력은 80토르(Torr) 정도가 적정압력으로서 이를 유지하기 위한 종래에는 레이저 발진기에 공급하는 가스라인단에 솔레노이드밸브와 압력계를 설치하고 이의 가스단을 제어하기 위한 아날로그 제어장치의 로직레벨로 제어하도록 구성되어져 있다. 그러나 이러한 구성에 의해서는 레이저 발진기의 적정유지 제어를 압려계의 지침을 보면서 아날로그 제어장치로 제어하는 관계로 적정유지압력의 정밀제어를 행할 수가 없을뿐만 아니라 그에 따른 회로가 복잡하게 구성되며, 적정유지 제어의 타임주기를 기기 제작시 셋팅하여 출하되는 관계로 한번셋팅하면 수정이 불가능 한 단점이 있었다. 따라서 본 발명은 상기한 종래 기술의 문제점을 해소하고자 PLC를 이용하여 그 내부에 이산화탄소 레이저 발진기 내부의 작동압력을 항상 일정한 압력으로 유지할 수 있도록 제어하는 프로그램을 내장하여 레이저 발진기 내부의 압력상태 검출에 따라 프로그램적으로 동작되도록 하므로서 자동적으로 압력을 일정하게 유지할 수 있음은 물론 정밀제어를 행할 수가 있고, 또한 회로구성을 간략화를 꾀하는 동시에 수정 및 보안이 간단하게 행할 수 있도록 한 이산화탄소 레이저 발진기의 작동압력 유지장치를 제공하는 데 그 목적이 있는 것이다.The present invention relates to an operating pressure maintaining device of a carbon dioxide laser oscillator, which is capable of maintaining a constant pressure at a constant pressure inside a carbon dioxide laser oscillator by a predetermined program of a programmable logic controller (PLC). In general, the normal operating pressure of the CO2 laser oscillator is about 80 Torr, which is a proper pressure. In order to maintain the pressure, a solenoid valve and a pressure gauge are installed at the gas line stage supplied to the laser oscillator, and an analog for controlling the gas stage is provided. It is configured to control at the logic level of the controller. However, with this configuration, the control of the proper holding pressure of the laser oscillator is controlled by the analog controller while watching the instructions of the pressure gauge, so that the precise control of the proper holding pressure is not possible and the circuit is consequently complicated. Since the time period of control is set and shipped at the time of manufacture, it is impossible to modify it once. Therefore, in order to solve the above-mentioned problems of the prior art, a built-in program for controlling the operating pressure inside the carbon dioxide laser oscillator is maintained at a constant pressure using a PLC therein according to the detection of the pressure state inside the laser oscillator. The operating pressure maintaining device of the CO2 laser oscillator, which can be operated programmatically, not only automatically maintains a constant pressure, can also perform precise control, and also simplify the circuit configuration and simplify modification and security. The purpose is to provide.
이하 본 발명을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도에 나타낸 바와같이 본 발명장치는 압력유지 제어의 가스공급수단으로 솔레노이드밸브(3)를 갖는 레이저 발진기(4)에 있어서, 상기 레이저 발진기(4)의 내부압력 상태를 검출하기 위한 압력센서(1)와, 상기 압력센서(1)의 셋팅 압력값 검출 고, 저에 따라 솔레노이드밸브(3)를 온/오프 제어시키는 프로그램 로직제어기(2)를 구비하여서 구성된 것이다. 또한 제2도는 본 발명장치에 적용되는 프로그램 로직제어기(2)의 입출력 회로를 나타낸 것으로서, TM은 타이머이고, T0, P0는 입력단자(스위치)이며, P30은 출력단자이다.As shown in FIG. 1, the apparatus of the present invention is a pressure sensor for detecting an internal pressure state of the laser oscillator 4 in the laser oscillator 4 having the solenoid valve 3 as a gas supply means for pressure holding control. (1) and a programmable logic controller (2) for controlling the solenoid valve (3) on and off in accordance with the detection of the set pressure value of the pressure sensor (1). 2 shows an input / output circuit of the program logic controller 2 applied to the apparatus of the present invention, where TM is a timer, T 0 and P 0 are input terminals (switches), and P 30 is an output terminal.
이와같이 구성된 본 발명의 동작관계를 제3도를 참조하여 설명하면 다음과 같다. 즉, 레이저 발진기(4) 내부에 설치된 압력센서(1)로부터 검출된 레이저 발진기(4)의 압력이 80토르 이상이면 프로그래머블 로직제어기(2)는 제2도의 입력단자(P0)를 온 시킨다. 이와동시에 타이머(TM)는 제3도의 타임챠트에서와 같이 입력단자(T0)를 온 시켜, 입력단자(P0)의 신호가 하강되는 시점에서 임의의 시간(약 1초 정도)을 연장시켜 출력단자(P30)를 온시킨다. 따라서 이때에는 레이저 발진기(4) 내부의 압력이 80토르 이상이므로 프로그래머블 로직제어기(2)는 솔레노이드밸브(3)를 온시켜 레이저 발진기(4) 내부의 압력을 배기시키도록 제어한다. 이후 레이저 발진기(4) 내부의 압력이 80토르 이하로 떨어지면 프로그래머블 로직제어기(2)는 그의 입력단자(P0)를 오프시킴과 동시에 타이머(TM)는 그의 입력단자(T0)를 압력신호 입력단자(P0)가 오프되는 시점에서 1초정도 연장되어 온된후 오프된다. 이에 따라 출력단자(P30)는 입력단자(T0)와 같은 타임으로 동작되어 솔레노이드밸브(3)를 오프시켜 레이저 발진기(4) 내부의 압력은 다시 상승하게 된다. 따라서 상기한 동작을 반복적으로 수행하여 레이저 발진기(4) 내부의 압력값을 일정하게 유지할 수가 있는 것이다.Referring to Figure 3 the operation relationship of the present invention configured as described above is as follows. That is, when the pressure of the laser oscillator 4 detected from the pressure sensor 1 installed inside the laser oscillator 4 is 80 Torr or more, the programmable logic controller 2 turns on the input terminal P 0 of FIG. At the same time, the timer TM turns on the input terminal T 0 as in the time chart of FIG. 3 and extends an arbitrary time (about 1 second) when the signal of the input terminal P 0 falls. Turn on the output terminal (P 30 ). Therefore, at this time, since the pressure inside the laser oscillator 4 is 80 Torr or more, the programmable logic controller 2 controls the solenoid valve 3 to be turned on to exhaust the pressure inside the laser oscillator 4. After that, when the pressure inside the laser oscillator 4 falls below 80 Torr, the programmable logic controller 2 turns off its input terminal P 0 and the timer TM inputs its input terminal T 0 to the pressure signal. The terminal P 0 is turned off after being extended for about one second at the time when the terminal P 0 is turned off. Accordingly, the output terminal P 30 is operated at the same time as the input terminal T 0 to turn off the solenoid valve 3 so that the pressure inside the laser oscillator 4 rises again. Therefore, by repeatedly performing the above operation, the pressure value inside the laser oscillator 4 can be kept constant.
이상에서 설명한 바와같이 본 발명은 레이저 발진기 내부의 압력상태를 검출하여 내부 적정압력 상태에 따라 프로그래머블 로직제어기의 프로그램에 의해 솔레노이드밸브를 제어토록 하므로서 레이저 발진기의 압력유지제어를 자동화시킬 수가 있음은 물론 정밀제어가 가능하고, 회로구성을 간략화시킬 수가 있는 특징이 있다.As described above, the present invention can automate the pressure holding control of the laser oscillator by detecting the pressure state inside the laser oscillator and controlling the solenoid valve by the program of the programmable logic controller according to the internal proper pressure state. It is possible to control and simplify the circuit configuration.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910023114A KR940006200B1 (en) | 1991-12-16 | 1991-12-16 | Operating pressure maintaining device of CO2 laser oscillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910023114A KR940006200B1 (en) | 1991-12-16 | 1991-12-16 | Operating pressure maintaining device of CO2 laser oscillator |
Publications (2)
Publication Number | Publication Date |
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KR930013909A KR930013909A (en) | 1993-07-22 |
KR940006200B1 true KR940006200B1 (en) | 1994-07-11 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019910023114A KR940006200B1 (en) | 1991-12-16 | 1991-12-16 | Operating pressure maintaining device of CO2 laser oscillator |
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KR (1) | KR940006200B1 (en) |
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1991
- 1991-12-16 KR KR1019910023114A patent/KR940006200B1/en not_active IP Right Cessation
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