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KR920008365Y1 - Over travel reset circuit of nc grinder - Google Patents

Over travel reset circuit of nc grinder Download PDF

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Publication number
KR920008365Y1
KR920008365Y1 KR2019900001106U KR900001106U KR920008365Y1 KR 920008365 Y1 KR920008365 Y1 KR 920008365Y1 KR 2019900001106 U KR2019900001106 U KR 2019900001106U KR 900001106 U KR900001106 U KR 900001106U KR 920008365 Y1 KR920008365 Y1 KR 920008365Y1
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South Korea
Prior art keywords
pmc
emergency stop
internal
internal relay
overtravel
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KR2019900001106U
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Korean (ko)
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KR910014048U (en
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최종철
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주식회사 기아기공
김성웅
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/22—Control or regulation of position of tool or workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Numerical Control (AREA)

Abstract

내용 없음.No content.

Description

NC 연삭기 오버트래블(OVER TRAVEL) 해제회로NC Grinding Machine Over Travel Release Circuit

제1도는 종래 NC 연삭기에 적용되너 오버트래블해제회로도.1 is an overtravel release circuit applied to a conventional NC grinding machine.

제2도는 본 고안의 하드웨어(H/W) 결선도.2 is a hardware (H / W) connection diagram of the present invention.

제3도는 제2도의 H/W와 연결되 PMC(동작제어프로그램)의 소프트웨어(S/W) 회로도.3 is a software (S / W) circuit diagram of a PMC (operation control program) connected to the H / W of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

LS1-LS5: 리미트스위치 X8.6 : 비상정지 입력내부릴레이LS 1 -LS 5 : Limit switch X8.6: Emergency stop input internal relay

G121.4 : 비상정지 출력내부릴레이 R601.0-R601.4 : PMC내부릴레이G121.4: Emergency stop output internal relay R601.0-R601.4: PMC internal relay

R624.3-R624.7 : 비상정지 해제내부릴레이R624.3-R624.7: Emergency stop release internal relay

본 고안은 NC연삭기의 오버트래블(OT)동작을 해제시키기 위한 회로에 대한 것으로, 각각의 오버트래블리미트 스위치(OT L/S)를 PMC입력 (INPIT)단자에 접속하고 소프트웨어적으로 회로를 구성함으로서 배선이 간단해 지고 원가를 절감할 수 있도록 한 것이다.The present invention relates to a circuit for releasing the overtravel (OT) operation of the NC grinding machine. By connecting each overtravel limit switch (OT L / S) to the PMC input (INPIT) terminal and configuring the circuit in software, The wiring was simplified and the cost was saved.

종래에는 제1도에서 도시한 바와같이 NC연삭기에 설치된 각각의 오버트래블리미트스위치의 b접점(ZLS)(-XLS)(+XLS)(ILS)(OLS)을 직렬로 연결하여 그의 출력을 PMC입력에 접속하되, 오버트래블해제릴레이 a접점 (OTNZ)(OTPX)(OTNX)(OTPZ)을 상기 오버트래블리미트스위치의 b접점에 각각 병렬로 접속하여 하드웨어적으로 오버트래블해제회로를 구성하였으며 그 동작은, 각(+X축, -X축, +Z축, -Z축)이 오버트래블 진행으로 오브트래블리미트스위치를 터치(TOUCH)하여 리미트스위치가 "오프"되면 PMC입력이 "오프"되어 NC알람상태가 된다 따라서 이와같은 상태를 해제하기 위해서는 OT가 걸린 반대 방향의 조그버튼(JOG BUTTON)을 눌러 오브트래블 해제릴레이를 '온'함으로써 오버트래블(OT)상태가 해제되어 원하는 가공작업의 계속 수행이 가능하게 되는 것이다.Conventionally, as shown in FIG. 1, the b contact (ZLS) (-XLS) (+ XLS) (ILS) (OLS) of each overtravel limit switch installed in the NC grinding machine is connected in series, and the output thereof is PMC input. The overtravel release relay a contact (OTNZ) (OTPX) (OTNX) (OTPZ) is connected to the b contact of the overtravel limit switch in parallel to configure the overtravel release circuit in hardware. If each limit (+ X-axis, -X-axis, + Z-axis, -Z-axis) touches the overtravel limit switch as the overtravel progresses and the limit switch is "off", PMC input is "off" and NC alarm Therefore, in order to cancel this state, press the JOG BUTTON in the opposite direction to which the OT is applied, and turn on the overtravel release relay to release the overtravel (OT) state so that the continuous processing of the desired work can be continued. It becomes possible.

그러나 이와같은 하드웨어적인 방식은 오버트래블을 해제하기 위한 별도의 외부릴레이를 각 리미트스위치마다 설치해야 하므로 배선의 복잡성과 가격의 상승 및 배선 첵크 보수가 어려운 결점이 있었다.However, such a hardware method requires a separate external relay for each limit switch to release the overtravel, and thus, the complexity of the wiring, the price increase, and the repair of the wiring shank are difficult.

본 고안은 상기와 같은 종래의 제결함을 감안하여 PMC내부의 소프트웨어 회로를 이용함으로써 배선의 간략화와 리미트스위치의 현재상태를 확인 가능토록하며, 원가를 대표적으로 절감할 수 있도록 안출한 것으로, 이를 첨부도면에 의거 상세히 설명하면 다음과 같다.The present invention is designed to simplify the wiring and the current state of the limit switch by using the software circuit inside the PMC in consideration of the above-mentioned conventional defects, and to reduce the cost representatively. When described in detail based on the drawings as follows.

PMC(동작제어프로그램)의 입력과 연결되는 각(+X축, -X축, +Z축, -Z축)의 오브트래블 리미트스위치(LS1)(LS2)(LS3)(LS4)를 설치하되, 제3도와 같이 비상정지 입력내부릴레이(X8.6)와 비상정지 출력내부릴레이(G121.4)의 사이에 상기 오버트래블 리미트스위치(LS1)(LS2)(LS3)(LS4)(LS5)와 각각 대응(연동)하는 PMC내부릴레이(R601.0)(R601.1)(R601.2)(R0601.3)를 순차적으로 직렬 연결하여 비상정지회로를 구성함과 동시에, 상기 PMC내부릴레이와 병렬로 비상정지 해제 내부릴레이(R624.3)(R624.4)(R624.6)(R624.7)의 순차적인 병렬연결이 이루어지도록 하여 비상정지해제내부릴레이의 구동에 의한 추축의 오버트래블 동작이 가능토록 한 것으로, 이를 구체적으로 설명한면 PMC내부릴레이(R601.0)은 비상정지 해제 내부릴레이(R624.3)과 병렬 연결되며, PMC내부릴레이(R601.1)은 비상정지 해제 내부릴레이(R624.4)와 병렬 연결되고, PMC내부 릴레이(R601.2)는 비상정지 해제 내부릴레이(R624.5)와 병렬 연결된다.Of travel limit switch (LS 1 ) (LS 2 ) (LS 3 ) (LS 4 ) of each (+ X axis, -X axis, + Z axis, -Z axis) connected to the input of PMC (operation control program) The overtravel limit switch (LS 1 ) (LS 2 ) (LS 3 ) between the emergency stop input internal relay (X8.6) and the emergency stop output internal relay (G121.4) as shown in FIG. LS 4 ) (LS 5 ) and PMC internal relay (R601.0) (R601.1) (R601.2) (R0601.3) corresponding to (interlocking), respectively, in sequence to form an emergency stop circuit. At the same time, the emergency stop release internal relay is driven by sequential parallel connection of the emergency stop release internal relays R624.3, R624.4, R624.6 and R624.7 in parallel with the PMC internal relay. It is possible to overtravel operation of the axis by the axis, and in detail, the PMC internal relay (R601.0) is connected in parallel with the emergency stop internal relay (R624.3), and the PMC internal relay (R601.1) Emergency stop release The internal relay R624.4 is connected in parallel, and the PMC internal relay R601.2 is connected in parallel with the emergency stop release internal relay R624.5.

또한, PMC내부릴레이(R601.4)는 비상정지 해제 내부릴레이(R624.6)과 병렬 연결되고, PMC내부릴레이(R601.3)은 비상정지 해제 내부릴레이(R624.7)과 병렬 연결된다. 상기 비상정지 해제 내부릴레이(R624.6)은 직렬 연결된 두 PMC내부릴레이(R601.4)(R601.3)의 앞단과 뒷단으로 병렬 연결되어 있다.In addition, the PMC internal relay R601.4 is connected in parallel with the emergency stop release internal relay R624.6, and the PMC internal relay R601.3 is connected in parallel with the emergency stop release internal relay R624.7. The emergency stop release internal relay R624.6 is connected in parallel to the front and rear ends of two PMC internal relays R601.4 and R601.3 connected in series.

이와같이 구성된 본 고안의 작용, 효과를 설명하면, 주측이 오버트래블(활동가공영역을 벗어남)하여 제2도와 같이 설치된 오버트래블 리미트스위치(LS1-LS5)중 어느 하나가 '오프'되면 그에 대응 연동하는 해당 PMC내부릴레이(R601.0-R601.4)도 자동 '오프'된다. 이와같이 제3도의 비상정지 입력내부릴레이(X8.6)와 비상정지 출력 내부릴레이(G121.4)의 사이에 직렬 설치된 해당 PMC내부릴레이가 '오프'되면 비상정지 출력내부릴레이(G121.4) 또한 자동 '오프'되어 기계는 비상정지상태가 된다.Referring to the operation and effect of the present invention configured as described above, when the main side is overtraveled (out of the active machining area) and any one of the overtravel limit switches LS 1 -LS 5 installed as shown in FIG. 2 is 'off' The corresponding PMC internal relays (R601.0-R601.4) are also automatically 'off'. As such, when the corresponding PMC internal relay installed in series between the emergency stop input internal relay (X8.6) and the emergency stop output internal relay (G121.4) of FIG. 3 is 'off', the emergency stop output internal relay (G121.4) is also used. Automatically 'off' the machine to the emergency stop.

한편, 연삭가공과정에서 이와같은 X축 및 Z축의 오버트래블 영역을 넘어서 작업을 해야할 필요가 있을때에는 각 해당축상에 설치된 오버트래블리미트스위치를 해제시켜야 하는바, 본 고안에서와 같이PMC소프트웨어 회로도를 구성할 경우에는 종래의 하드웨어적인 구성보다도 월등히 우수한 동작타임을 얻을 수 있으며 그에 따른 원가절감을 효과 또한 득할 수 있게 되는 것으로, 예를들어 +X축상으로 오버트래블리미트스위치(LS1)를 지나 계속적인 가공작업을 해야할 경우에는 이측과 반대방향으로 조그버튼(도시생략)을 눌러 제3도에 도시된 바의 비상정지 해제 내부릴레이(R624.3-R624.7)중 해당 내부릴레이 '온'시키면 되는바, 즉, 오버트래블을 해제시키기 위한 해당 조그버튼을 조작하면, +X축 오버트래블리미트스위치(LS1)와 연결되는 PMC내부릴레이(R601.0)에 병렬연결된 +X축 비상정지 해제 내부릴레이(R624.3)가 도통되므로써 +X축 오버트래블리미트스위치(LS1)가 '오프'되더라도 전기신호는 비상정지 입력 내부릴레이(X8.6)→비상정지해제 내부릴레이(R624.3)→PMC내부릴레이(R601.1)(R601.2)(R601.4)(R601.3)→비상정지출력 내부릴레이(G121.4)가 '온'상태가 되므로 인해서 그의 출력단에는 비상정지 신호가 발생되지 않게 되므로 원하는 X축 방향으로의 계속적인 연삭가공 작업이 가능하게 되는 것이다.On the other hand, when it is necessary to work beyond the X and Z axis overtravel areas in the grinding process, the overtravel limit switch installed on each axis must be released. In this case, the operation time is much better than that of the conventional hardware configuration, and the cost reduction effect can be obtained. For example, the processing continues beyond the overtravel limit switch (LS 1 ) on the + X axis. If you need to work, press the jog button (not shown) in the opposite direction to 'on' of the emergency stop release internal relay (R624.3-R624.7) shown in FIG. That is, when the corresponding jog button for releasing the overtravel is operated, the PMC internal relay R601 connected to the + X-axis overtravel limit switch LS 1 is performed. The + X-axis emergency stop release internal relay (R624.3) connected in parallel to .0) causes the electrical signal to remain in the emergency stop input internal relay (X8.6) even if the + X-axis overtravel limit switch (LS 1 ) is 'off'. ) → Emergency stop internal relay (R624.3) → PMC internal relay (R601.1) (R601.2) (R601.4) (R601.3) → Emergency stop output internal relay (G121.4) In this case, the emergency stop signal is not generated at the output end thereof, thereby enabling continuous grinding in the desired X axis direction.

이와같이 본 고안은 작업자가 원하는 방향으로의 해제동작을 PMC내부에 설치된 소프트웨어적인 회로도에 의하여 간단하게 실시가능토록 함으로써 회로의 구성을 간략화(리미트스위치와 PMC 입력단자를 1 : 1로 접속)할 수 있으며, 리미트스위치 현재 상태(온/오프)를 조작반에서 직접확인 가능하며, 또한 PMC내부릴레이를 사용하므로써 원가를 대폭절감할 수 있는 그 실사용 가치가 일충고양된 신규의 고안인 것이다.As such, the present invention enables the operator to easily perform the release operation in the desired direction by the software circuit diagram installed inside the PMC, thereby simplifying the circuit configuration (connecting the limit switch and the PMC input terminal to 1: 1). In addition, the current status (on / off) of the limit switch can be checked directly from the control panel, and the practical value of using the PMC internal relay can significantly reduce the cost.

Claims (1)

PMC(동작제어 프로그램)의 입력과 연결되는 각축상에 오버트래블 리미트스위치(LS1)(LS2)(LS3)(LS4)를 구비한 오버트래블 해제회로를 구성함에 있어서, PMC내에 비상정지입력내부릴레이(X8.6)와 비상정지출력내부릴레이(G121.4)를 직렬 구성하되, 두 내부릴레이(X8.6)(G121.4)의 사이에 상기 오버트래블 리미트스위치(LS1)(LS2)(LS3)(LS4)와 각각 대응하는 PMC내부릴레이(R601.1)(R601.2)(R601.4)(R601.3)를 순차적으로 직렬 연결하여 비상정지회로를 구성함과 동시에 상기 각각의 PMC내부릴레이와 병렬로 비상정지 해제 내부릴레이(R624.3)(R624.4)(R624.5)(R624.6)(R624.7)의 순차적인 병렬 연결이 이루어지도록 하여 비상정지해제내부릴레이의 구동을 주축의 오버트래블 동작이 가능토록 함을 특징으로 하는 NC연삭기 오버트래블(OVER TRAVEL) 해제 회로.According as the phase of each axis is connected to the input of PMC (operation control program) over travel limit switch (LS 1) (LS 2) (LS 3) constitutes an over travel off circuit comprising a (LS 4), an emergency stop in the PMC An internal input relay (X8.6) and an emergency stop output internal relay (G121.4) are configured in series, and the overtravel limit switch LS 1 between the two internal relays (X8.6) (G121.4) ( LS 2 ) (LS 3 ) (LS 4 ) and the corresponding PMC internal relays (R601.1) (R601.2) (R601.4) (R601.3) are sequentially connected to form an emergency stop circuit. At the same time, the sequential parallel connection of the emergency stop release internal relays R624.3, R624.4, R624.5, R624.6 and R624.7 is performed in parallel with the respective PMC internal relays. OVER TRAVEL releasing circuit for emergency grinding.
KR2019900001106U 1990-01-31 1990-01-31 Over travel reset circuit of nc grinder KR920008365Y1 (en)

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KR920008365Y1 true KR920008365Y1 (en) 1992-11-20

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* Cited by examiner, † Cited by third party
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EP2657345A1 (en) 2006-07-28 2013-10-30 CJ Cheiljedang Corporation Enzymatic method of producing L-methionine from a precursor and methylmercaptan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2657345A1 (en) 2006-07-28 2013-10-30 CJ Cheiljedang Corporation Enzymatic method of producing L-methionine from a precursor and methylmercaptan

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