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KR200256352Y1 - Apparatus prevention falling at stoppage of electric current for machine tool - Google Patents

Apparatus prevention falling at stoppage of electric current for machine tool Download PDF

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Publication number
KR200256352Y1
KR200256352Y1 KR2020010027858U KR20010027858U KR200256352Y1 KR 200256352 Y1 KR200256352 Y1 KR 200256352Y1 KR 2020010027858 U KR2020010027858 U KR 2020010027858U KR 20010027858 U KR20010027858 U KR 20010027858U KR 200256352 Y1 KR200256352 Y1 KR 200256352Y1
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South Korea
Prior art keywords
machine tool
servo amplifier
prevention device
power failure
fall prevention
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KR2020010027858U
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Korean (ko)
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신복철
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위아 주식회사
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Publication of KR200256352Y1 publication Critical patent/KR200256352Y1/en

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Abstract

본 고안은 공작기계용 순간정전시 중력축 낙하량 방지장치에 관한 것이다. 본 낙하량 방지 장치는 공작기계의 서보증폭부에 있어서, 상기 서보증폭부에 저항(R)과 릴레이를 직렬연결하고, 그사이에 콘덴서를 병렬연결한 장치를 포함한다. 이와같이, 본 고안인 공작기계용 중력축 낙하량 방지장치는 서보증폭기(Servo AMP)의 종단부분에 적분회로를 추가함으로써, 순간 정전시 서보 증폭기내의 서보 레이디 신호의 정지시간을 지연시킴으로써 가공 Tool(공구)의 보호 및 가공물의 손상을 방지하여 사용자의 효율성을 극대화 한다.The present invention relates to a gravity shaft fall prevention device during momentary power failure for machine tools. The fall prevention device includes a device in which a resistor (R) and a relay are connected in series and a capacitor is connected in parallel in the servo amplifier of the machine tool. In this way, the gravity shaft fall prevention device for machine tools of the present invention adds an integrated circuit at the end of the servo amplifier, and delays the stop time of the servo lady signal in the servo amplifier during a momentary power failure. Protection and prevention of damage to the workpiece to maximize the efficiency of the user.

Description

공작기계용 순간 정전시 중력축 낙하량 방지장치{Apparatus prevention falling at stoppage of electric current for machine tool}Gravity axis fall prevention device during momentary power failure for machine tools {Apparatus prevention falling at stoppage of electric current for machine tool}

본 고안은 공작기계용 순간 정전시 중력축 낙하량 방지장치에 관한 것으로서, 좀더 상세하게 설명하면, 서보 증폭기에 적분회로를 추가하여 서보 증폭기내(Servo AMP)의 서보 레이디(Servo Ready) 신호의 오프시간을 지연시키기는 공작기계용 중력축 낙하량 방지장치에 관한 것이다.The present invention relates to an apparatus for preventing gravity shaft drop during instantaneous power failure for machine tools, and more specifically, an integrated circuit is added to the servo amplifier to turn off the servo ready signal in the servo amplifier. The present invention relates to a gravity shaft fall prevention device for machine tools.

일반적으로 공작기계의 순간 정전시 중력축의 낙하량을 억제하기 위하여 도 1에서와 같이 브레이크(Brake)를 빠르게 동작시키기 위해 브레이크회로의 DC전원 라인에 릴레이접점을 사용하고 중력축의 낙하량을 적게하기 위하여 이 릴레이의 접점동작을 가능한 한 빨리 차단시키고, 순간 정전시 릴레이를 빠르게 차단하기 위해서는 릴레이 구동용 전원을 가능한 한 최소 메인 전원(AC 220V)에 직접 취부하여야 한다.In general, in order to suppress the amount of fall of the gravity shaft during momentary power failure of the machine tool, as shown in FIG. 1, to use a relay contact in the DC power line of the brake circuit and to reduce the amount of fall of the gravity shaft in order to operate the brake quickly. In order to cut off the contact operation of this relay as soon as possible, and to cut off the relay quickly in case of a momentary power failure, the relay driving power should be installed directly to the minimum main power supply (AC 220V) as possible.

그러나, 상기한 사항에 의거하여 배선을 하게되면 중력축의 무게가 적을 수록 효과가 있지만 중력축의 중량이 클 경우에는 순간 정전시 기계마다 낙하량의 차이가 발생하게 된다.However, if the wiring based on the above matters, the smaller the weight of the gravity shaft is more effective, but if the weight of the gravity shaft is larger, the difference in the amount of fall occurs for each machine during a momentary power failure.

예를들어, SKT21LMS(F18TC)기종에서도 배선관계는 모든 기계가 동일함에도 불구하고 중력축 낙하량이 검사기준(0.05mm)보다 많이 떨어지는 기계와 검사기준내에 들어오는 기계등이 존재한다. 또, CNC 자체내의 브레이크 컨트롤(Brake Control)기능을 이용하여 비상정지스위치(Emergency Stop Switch)를 사용하여 비상정지를 실행하면 모든 기계의 중력축이 최대 0.006mm밖에 낙하하지 않은 것을 볼때 순간 정전시에 서보 증폭기(Servo AMP)의 파워 서플라이 모듈 레이디 신호(Power Supply Module Ready) 보다 중력축의 브레이크 동작을 선행 되어야 하지만, 순간 정전시에 동작시간이 빠른 무접점 릴레이(1ms + 부하 Cycle 3/21ms)를 사용하더라도 접점 릴레이(20ms)보다 효과를 거둘 수 없는 문제점이 있다.For example, even in the SKT21LMS (F18TC) model, even though all the machines are identical, there are some machines that fall within the inspection standard (0.05mm) and machines falling within the inspection standard even though all machines are identical. In addition, when emergency stop is performed using the emergency stop switch using the brake control function in the CNC itself, when the gravity shaft of all machines falls by only 0.006 mm, The brake operation of the gravity shaft should be preceded by the power supply module ready signal of the servo amplifier (Servo AMP), but a solid state relay (1ms + load cycle 3 / 21ms), which has a faster operating time in case of a momentary power failure, is used. Even if there is a problem that can not achieve the effect than the contact relay (20ms).

본 고안은 상기와 같은 문제점을 해결하기 위해 안출한 것으로써, 파워 서플라이 모듈 레이디 신호(Power Supply Module Ready)를 지연(Delay)시키는 공작기계용 순간 정전시 중력축 낙하량 방지장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, to provide a gravity shaft fall prevention device for a momentary power failure for machine tools to delay the Power Supply Module Ready (Power Supply Module Ready). There is this.

상기 목적은 본 고안에 따라, 공작기계의 서보증폭부에 있어서, 상기 서보증폭부에 저항(R)과 릴레이를 직렬연결하고, 그사이에 콘덴서를 병렬연결한 장치를 포함하는 것을 특징으로 하는 공작기계용 중력축 낙하량 방지장치에 의해 달성된다.According to the present invention, in the servo amplifier of the machine tool, a machine tool characterized in that it comprises a device for connecting a resistor (R) and a relay in series, and a capacitor connected in parallel between the servo amplifier in series; It is achieved by the gravity shaft fall prevention device.

도 1은 종래 공작기계에 대한 회로도 이고,1 is a circuit diagram of a conventional machine tool,

도 2는 본 고안인 공작기계용 순간 정전시 중력축 낙하량 방지장치에 관한 회로도 이다.Figure 2 is a circuit diagram of the gravity shaft fall prevention device during instantaneous power failure for the machine tool of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

101 : 적분회로 102 : 릴레이101: integral circuit 102: relay

이하, 첨부한 도면을 이용하여, 본 고안인 공작기계용 순간 정전시 중력축 낙하량 방지장치에 관해 상세하게 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the gravity axis falling amount prevention device during a momentary power failure for the machine tool according to the present invention.

본 고안인 공작기계용 순간 정전시 중력축 낙하량 방지장치는 공작기계의 서보증폭부에 있어서, 상기 서보증폭부에 저항(R)과 릴레이를 직렬연결하고, 그사이에 콘덴서를 병렬연결한 장치를 추가하여 구성된다.In the instantaneous blackout of the machine tool, the gravity shaft fall prevention device is a servo amplifier of a machine tool, in which a resistor (R) and a relay are connected in series with the servo amplifier, and a capacitor is connected in parallel. It is configured in addition.

상기 저항(R)과 콘덴서는 적분회로(101)이며, 상기한 적분회로에 릴레이(102)를 직렬연결하여 서보증폭부에 추가하게 된다.The resistor R and the condenser are integral circuits 101, and relays 102 are connected in series to the integral circuits to add to the servo amplifiers.

이와같이, 서보증폭부에 상기한 회로를 추가하여 구성하게 되면, 아래의 그림과 같이, 서보 증폭부 내의 서보 레이디 신호의 오프시간을 지연시킬 수 있다.In this way, if the above-described circuit is added to the servo amplifier section, the off time of the servo lady signal in the servo amplifier section can be delayed as shown below.

이러한, 낙하량 방지장치의 작동 상태를 살펴보면 순간 정전시 중력축의 낙하량 과대를 억제하기 위한 릴레이(Relay)구동용 전원을 가능한 한 최초의 메인(main)전원(AC 220V)에 직접 취부하여 정전시 브레이크(Brake) 동작이 최대한 빨리 동작 되도록 한다. 또한, 첨부한 도면과 같이, 적분회로(입력파형 신호의 상승부분을 늦출때 사용)(101)를 구성하면 정전시에 즉시 서보 출력부의 파워서플라이모듈레이디 신호가 즉시 오프되지 않고 약간의 지연시간을 갖는다. 이때, 일반적으로 브레이크 릴리즈 릴레이(Brake release Relay)의 접점은 항상 닫혀있게 된다.In the operation state of the fall prevention device, when a power failure occurs, a relay driving power supply for suppressing excessive drop amount of the gravity shaft is directly installed to the first main power supply (AC 220V) as soon as possible. Make brake operation as fast as possible. In addition, as shown in the accompanying drawings, when the integral circuit (used to slow down the rising edge of the input waveform signal) 101 is configured, the power supply module lady signal of the servo output unit is not immediately turned off at the time of power failure, and a slight delay time is provided. Have In this case, generally, the contact point of the brake release relay is always closed.

이와같이, 본 고안인 공작기계용 중력축 낙하량 방지장치는 순간 정전시 서보 증폭기내의 서보 레이디 신호의 정지시간을 지연함으로써 가공 Tool(공구)의 보호 및 가공물의 손상을 최대한 줄일 수 있어 사용상 효율성을 극대화 한다.In this way, the gravity axis fall prevention device for machine tools of the present invention can maximize the efficiency of use by delaying the stop time of the servo lady signal in the servo amplifier during the momentary power failure, thereby minimizing the protection of the tool and damaging the workpiece. do.

본 고안인 공작기계용 순간 정전시 중력축 낙하량 방지장치는 서보증폭기(Servo AMP)의 종단부분에 적분회로를 추가함으로써, 서보 증폭기내의 서보 레이디 신호의 정지시간을 지연시킴으로써 가공 Tool(공구) 및 가공물의 손상을 방지하여 사용자의 효율성을 극대화 하는 매우 훌륭한 고안이다.The instantaneous blackout fall prevention device for machine tools of the present invention adds an integrating circuit at the end of the servo amplifier, thereby delaying the stop time of the servo lady signal in the servo amplifier. It is a very good design that maximizes user efficiency by preventing damage to the workpiece.

Claims (1)

공작기계의 서보증폭부에 있어서,In servo amplifier of machine tool, 상기 서보증폭부에 저항(R)과 릴레이를 직렬연결하고, 그사이에 콘덴서를 병렬연결한 장치를 포함하는 것을 특징으로 하는 공작기계용 중력축 낙하량 방지장치.And a device in which a resistor (R) is connected in series with the relay in series with the servo amplifier, and a capacitor is connected in parallel therebetween.
KR2020010027858U 2001-09-11 2001-09-11 Apparatus prevention falling at stoppage of electric current for machine tool KR200256352Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180124574A (en) 2017-05-12 2018-11-21 두산공작기계 주식회사 Method to automatically adjust the height of the spindle head attached to the vertical axis when the power is shut down or emergency stop

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180124574A (en) 2017-05-12 2018-11-21 두산공작기계 주식회사 Method to automatically adjust the height of the spindle head attached to the vertical axis when the power is shut down or emergency stop

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