KR100893407B1 - An Evaluation Test Apparatus For Machine Tools Of Oil Cooler - Google Patents

An Evaluation Test Apparatus For Machine Tools Of Oil Cooler Download PDF

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KR100893407B1
KR100893407B1 KR1020070048289A KR20070048289A KR100893407B1 KR 100893407 B1 KR100893407 B1 KR 100893407B1 KR 1020070048289 A KR1020070048289 A KR 1020070048289A KR 20070048289 A KR20070048289 A KR 20070048289A KR 100893407 B1 KR100893407 B1 KR 100893407B1
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South Korea
Prior art keywords
oil
oil cooler
machine tool
temperature
refrigerant
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KR1020070048289A
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Korean (ko)
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KR20080102020A (en
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이승우
한승우
이후상
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한국기계연구원
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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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0003—Arrangements for preventing undesired thermal effects on tools or parts of the machine
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/12—Arrangements for cooling or lubricating parts of the machine
    • B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/141—Methods or arrangements for maintaining a constant temperature in parts of machine tools using a closed fluid circuit for cooling or heating
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/146—Methods or arrangements for maintaining a constant temperature in parts of machine tools by controlling the temperature of a cutting liquid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

본 발명은 오일쿨러의 정확한 성능평가를 하기 위한 공작기계 오일쿨러 성능 평가 시험장치에 관한 것으로, 실제 공작기계의 운용조건과 동일한 조건으로 오일의 온도를 올려 오일쿨러의 내부로 오일을 순환시키고, 오일쿨러의 내부에는 오일의 온도를 측정할 수 있는 다수의 센서를 구비하여 순환되는 오일의 온도에 따라 오일쿨러의 내부에 구비된 열교환사이클의 냉매를 조절함으로써, 오일쿨러의 성능을 평가할 수 있는 특징이 있다.The present invention relates to a machine tool oil cooler performance evaluation test apparatus for accurate performance evaluation of the oil cooler, by raising the temperature of the oil under the same conditions as the actual operating conditions of the machine tool circulating the oil inside the oil cooler, The inside of the cooler is equipped with a plurality of sensors that can measure the temperature of the oil by adjusting the refrigerant of the heat exchange cycle provided in the oil cooler according to the temperature of the oil circulated, it is possible to evaluate the performance of the oil cooler have.

공작기계, 열교환사이클, 냉매, 오일쿨러, 시험장치 Machine tool, heat exchange cycle, refrigerant, oil cooler, test equipment

Description

공작기계 오일쿨러 성능 평가 시험장치{An Evaluation Test Apparatus For Machine Tools Of Oil Cooler}An Evaluation Test Apparatus For Machine Tools Of Oil Cooler

도 1은 본 발명에 따른 공작기계 오일쿨러 성능 평가 시험장치의 구성도,1 is a configuration of the machine tool oil cooler performance evaluation test apparatus according to the present invention,

도 2는 도 1에 따른 공작기계 오일쿨러 성능 평가 시험장치의 블럭도이다.2 is a block diagram of the machine tool oil cooler performance evaluation test apparatus according to FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10: 오일탱크 11: 히터10: oil tank 11: heater

20: 순환관 21: 오일유입구20: circulation pipe 21: oil inlet

22: 오일유출구 30: 중앙제어부22: oil outlet 30: central control unit

31: 디스플레이 40: 오일쿨러31: Display 40: Oil cooler

41: 열교환사이클 411: 증발기41: heat exchange cycle 411: evaporator

412: 압축기 412a: 냉매계412: compressor 412a: refrigerant system

412b: 압력계 413: 응축기412b: pressure gauge 413: condenser

414: 감압기 42: 온도센서414: pressure reducer 42: temperature sensor

43: 대기온도센서 441: 펌프43: ambient temperature sensor 441: pump

442: 모터 443: 커플링442: motor 443: coupling

443a: 접촉센서443a: contact sensor

본 발명은 공작기계 오일쿨러의 정확한 성능평가를 하기 위한 시험장치에 관한 것으로, 보다 상세하게는 실제 공작기계의 운용조건과 동일한 조건으로 오일의 온도를 가변시켜 오일쿨러의 내부로 오일을 순환시키고, 오일쿨러의 내부에는 오일의 온도를 측정할 수 있는 다수의 센서를 구비하여 순환되는 오일의 온도에 따라 오일쿨러의 내부에 구비된 열교환사이클의 냉매를 조절함으로써, 오일쿨러의 성능을 평가할 수 있는 구조의 공작기계 오일쿨러 성능 평가 시험장치에 관한 것이다.The present invention relates to a test apparatus for accurate performance evaluation of a machine tool oil cooler, and more specifically, to circulate the oil inside the oil cooler by varying the temperature of the oil under the same conditions as the actual operating conditions of the machine tool, The oil cooler is equipped with a plurality of sensors that can measure the temperature of the oil by adjusting the refrigerant in the heat exchange cycle provided in the oil cooler according to the temperature of the oil circulated, the structure that can evaluate the performance of the oil cooler Machine tool oil cooler performance evaluation tester.

일반적으로 공작기계는 주축의 회전 및 주위 환경의 변화에 따라 공작기계에 열변형이 발생되어 가공 정밀도가 저하되게 됨으로, 내부 순환오일을 통해 각 부를 냉각한다. 이를 위해 공작기계는 오일탱크와 상기 오일탱크의 오일을 냉각시키기 위한 오일쿨러가 장착되어 공작기계의 내부 발열을 제어하는 기능을 하는데, 이러한 오일쿨러는 공작기계의 규모의 크기 및 설치환경에 따라 성능의 차이를 갖게 된다.In general, the machine tool is thermally deformed in the machine tool due to the rotation of the main shaft and the change of the surrounding environment to reduce the processing accuracy, thereby cooling each part through the internal circulation oil. To this end, the machine tool is equipped with an oil tank and an oil cooler for cooling the oil in the oil tank to control internal heat generation of the machine tool. The oil cooler performs according to the size and installation environment of the machine tool. Will have the difference.

특히 이러한 오일쿨러는 공작기계의 연속운전에 따른 주축부의 온도상승으로 인한 내부 순환오일의 온도상승에 따른 오일 냉각에 따라 성능이 크게 좌우된다.In particular, such an oil cooler greatly depends on the oil cooling caused by the temperature increase of the internal circulation oil due to the temperature rise of the main shaft part according to the continuous operation of the machine tool.

하지만 이러한 오일쿨러는 공작기계의 아주 중요한 부분임에도 불구하고, 상기 오일쿨러의 고장유/무를 확인하고, 성능을 정확히 평가할 수 있는 기기가 전무한 실정이다However, even though such an oil cooler is a very important part of a machine tool, there is no device capable of confirming the failure / absence of the oil cooler and accurately evaluating its performance.

따라서 이러한 오일쿨러의 냉매유량과, 냉매유출여부와, 오일순환기능과, 펌 프/모터의 과부하에 따른 커플링의 고장 유/무와 같은 성능을 평가할 수 있는 기기가 요구되고 있는 실정이다.Therefore, there is a demand for a device capable of evaluating performance such as refrigerant flow rate of oil cooler, whether refrigerant flows out, oil circulating function, and failure of coupling due to pump / motor overload.

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 본 발명의 목적은, 실제 공작기계의 운용조건과 동일한 조건으로 오일의 온도를 올려 오일쿨러의 내부로 오일을 순환시키고, 오일쿨러의 내부에는 오일의 온도를 측정할 수 있는 다수의 센서를 구비하여 순환되는 오일의 온도에 따라 오일쿨러의 내부에 구비된 열교환사이클의 냉매를 조절함으로써, 오일쿨러의 성능을 평가할 수 있는 구조의 공작기계 오일쿨러 성능 평가 시험장치를 제공하는 것이다.The present invention has been made in view of the above problems, an object of the present invention is to raise the temperature of the oil under the same conditions as the operating conditions of the actual machine tool, circulating the oil inside the oil cooler, the inside of the oil cooler Machine tool oil cooler with a structure that can evaluate the performance of the oil cooler by adjusting the refrigerant of the heat exchange cycle provided in the oil cooler according to the temperature of the oil circulated with a plurality of sensors capable of measuring the temperature of the oil It is to provide a performance evaluation tester.

상기 기술적 과제를 해결하기 위한 본 발명의 공작기계 오일쿨러 성능 평가 시험장치는, 공작기계의 운용조건과 같은 발열 상태를 나타낼 수 있도록 히터를 내장한 오일탱크;와, 상기 오일탱크와 순환관을 통해 연통되고, 상기 오일탱크의 오일을 강제 순환시키는 펌프/모터와, 순환되는 오일을 냉각시킬 수 있도록 증발기-압축기-응축기-감압기로 구성되는 열교환사이클이 내장되며, 내/외부로 유/출입되는 오일의 온도를 측정하는 다수의 온도센서가 장착된 오일쿨러;와, 상기 오일탱크와, 오일쿨러와 전기적으로 연결되어 오일쿨러 내부의 측정데이터를 통해 냉매의 유량을 제어하고, 공작기계의 운용조건에 따라 오일탱크의 히터을 제어하여 오일쿨 러의 성능을 평가하는 중앙제어부;를 포함하여 이루어지는 것을 특징으로 하는 공작기계 오일쿨러 성능 평가 시험장치에 의해서 달성된다.Machine tool oil cooler performance evaluation test apparatus of the present invention for solving the above technical problem, an oil tank with a heater so as to exhibit a heating state such as operating conditions of the machine tool; and through the oil tank and the circulation pipe A heat exchange cycle consisting of an evaporator, a compressor, a condenser, and a reducer to cool the circulating oil, and a pump / motor which communicates with and forcibly circulates the oil in the oil tank, and includes oil flowing in and out of the oil tank. Oil cooler is equipped with a plurality of temperature sensors for measuring the temperature of the; and the oil tank, and electrically connected to the oil cooler to control the flow rate of the refrigerant through the measurement data inside the oil cooler, the operating conditions of the machine tool Machine tool oil cooler comprising a; central control unit for controlling the heater of the oil tank to evaluate the performance of the oil cooler according to It is achieved by the performance evaluation test apparatus.

상기에서 압축기는 후단으로 냉매 유량을 측정할 수 있는 냉매계가 더 연결되는 것이 바람직하다.The compressor is preferably further connected to a refrigerant system capable of measuring the refrigerant flow rate to the rear end.

상기에서 압축기는 후단으로 냉매가스유출 여부를 감지하는 압력계가 더 연결되는 것이 바람직하다.In the compressor, it is preferable that a pressure gauge for detecting whether the refrigerant gas is leaked to the rear stage is further connected.

상기에서 증발기는 유입되는 오일의 온도와 측정할 수 있도록 온도센서가 더 연결되어 있어, 오일쿨러로 유/출입되는 오일의 온도와 비교할 수 있도록 구성되는 것이 바람직하다.The evaporator is preferably configured to be compared with the temperature of the oil flowing into / out of the oil cooler, so that the temperature sensor is further connected to measure the temperature of the incoming oil.

상기에서 오일쿨러는 모터를 통해 펌프로 구동력을 제공하기 위해 연결되는 커플링의 파손유무를 측정할 수 있도록 커플링에 장착되는 접촉센서를 더 포함하는 것이 바람직하다.Preferably, the oil cooler further includes a contact sensor mounted on the coupling to measure whether the coupling is connected to provide a driving force to the pump through the motor.

상기에서 오일쿨러(40)는 대기온도를 측정할 수 있는 대기온도센서(43)가 더 장착되어 대기온도에 따른 열교환사이클(41)의 압축기(412) 가동여부와, 냉매 또는 순환오일유량을 중앙제어부(30)를 통해 제어할 수 있도록 구성되는 것이 바람직하다.The oil cooler 40 is further equipped with an air temperature sensor 43 capable of measuring the air temperature, the compressor 412 of the heat exchange cycle 41 according to the air temperature and whether the refrigerant or the circulation oil flow center It is preferable that the control unit 30 is configured to be controlled.

본 발명은 첨부된 도면을 참조하여 후술하는 바람직한 실시예를 통하여 더욱 명백해질 것이다. 이하에서는 본 발명의 실시예를 통해 당업자가 용이하게 이해하고 재현할 수 있도록 상세히 설명하도록 한다. The invention will become more apparent through the preferred embodiments described below with reference to the accompanying drawings. Hereinafter will be described in detail to enable those skilled in the art to easily understand and reproduce through embodiments of the present invention.

도 1은 본 발명에 따른 공작기계 오일쿨러 성능 평가 시험장치의 구성도이과, 도 2는 도 1에 따른 공작기계 오일쿨러 성능 평가 시험장치의 블럭도이다.1 is a configuration diagram of a machine tool oil cooler performance evaluation test apparatus according to the present invention, and FIG. 2 is a block diagram of a machine tool oil cooler performance evaluation test apparatus according to FIG. 1.

도 1 및 도 2에 도시된 바와 같이, 본 발명은 실제 공작기계의 운용조건과 동일한 조건으로 오일의 온도를 올려 오일쿨러(40)의 내부로 오일을 순환시키고, 오일쿨러(40)의 내부에는 오일의 온도를 측정할 수 있는 다수의 온도센서(42)를 구비하여 순환되는 오일의 온도에 따라 오일쿨러(40)의 내부에 구비된 열교환사이클(41)의 냉매를 조절함으로써, 오일쿨러(40)의 성능을 평가할 수 있는 구조의 공작기계 오일쿨러 성능 평가 시험장치에 관한 것이다.As shown in Figure 1 and 2, the present invention raises the temperature of the oil in the same conditions as the actual operating conditions of the machine tool circulating the oil into the oil cooler 40, the inside of the oil cooler 40 The oil cooler 40 is provided by adjusting the refrigerant of the heat exchange cycle 41 provided in the oil cooler 40 according to the temperature of the oil circulated with a plurality of temperature sensors 42 capable of measuring the temperature of the oil. The present invention relates to a machine tool oil cooler performance evaluation test apparatus having a structure capable of evaluating the performance of a).

이러한 시험 장치는 크게 3부분으로 구성되는데, 이는 오일탱크(10)와, 상기 오일탱크(10)와 연통되는 오일쿨러(40)와, 상기 오일쿨러(40)의 성능을 평가할 수 있도록 상기 오일탱크(10) 및 오일쿨러(40)와 전기적으로 연결되는 중앙제어부(30)로 구성된다.The test apparatus is composed of three parts, which is an oil tank 10, an oil cooler 40 communicating with the oil tank 10, and an oil tank so as to evaluate the performance of the oil cooler 40. 10 and the central control unit 30 is electrically connected to the oil cooler 40.

여기서 오일탱크(10)는 공작기계의 운용조건과 같은 발열 상태를 나타낼 수 있도록 히터(11)를 내장한 구조이다. 따라서 상기 공작기계의 운용조건에 따라 중앙제어부(30)를 통해 히터(11)를 가동하여 오일탱크(10) 내의 오일 온도를 선택적으로 가변시킬 수 있는 구조이다.Here, the oil tank 10 has a structure in which the heater 11 is built in such a manner as to display a heat generation state such as an operating condition of a machine tool. Therefore, the heater 11 is operated through the central control unit 30 according to the operating conditions of the machine tool to selectively change the oil temperature in the oil tank 10.

아울러 상기 오일쿨러(40)는 내부에 오일을 냉각시킬 수 있는 열교환사이클(41)이 구비되어 있으며, 더불어 상기 열교환사이클(41)의 증발기(411)를 거쳐 오일이 오일탱크(10)로 순환되도록 오일을 펌핑하는 펌프(441)가 내장되어 있다. 이 때 상기 펌프(441)는 구동력을 제공받기 위해 커플링(443)을 통해 모터(442)와 연결되어 있는 구조이다. 그리고 상기 열교환사이클(41)은 증발기(411)-압축기(412)-응축기(413)-모세관(감압기)(414)으로 구성되는 구조이다.In addition, the oil cooler 40 is provided with a heat exchange cycle 41 for cooling the oil therein, and the oil is circulated to the oil tank 10 via the evaporator 411 of the heat exchange cycle 41. A pump 441 for pumping oil is incorporated. At this time, the pump 441 is connected to the motor 442 through the coupling 443 to receive the driving force. The heat exchange cycle 41 is configured of an evaporator 411-a compressor 412-a condenser 413-a capillary tube (decompressor) 414.

이러한 오일쿨러(40)는 오일탱크(10)와 순환관(20)을 통해 연통되는 구조이며, 순환관(20)의 오일유입구(21)와 오일유출구(22)에는 오일의 온도를 측정하는 온도센서(42)가 각각 구비되어 있는 구조이다. 이러한 각 온도센서(42)는 오일의 유입온도와 오일의 출구온도를 측정하기 위함이다.The oil cooler 40 has a structure in communication with the oil tank 10 and the circulation pipe 20, the temperature for measuring the temperature of the oil in the oil inlet 21 and the oil outlet 22 of the circulation pipe 20 Each of the sensors 42 is provided. Each of these temperature sensors 42 is for measuring the inlet temperature of the oil and the outlet temperature of the oil.

더불어 상기 열교환사이클(41)의 압축기(412)는 후단으로 냉매 유량을 측정할 수 있는 냉매계(412a)가 연결되어 있는 구조이다. 이러한 냉매계(412a)는 열교환사이클(41)을 순환하는 냉매의 유량을 측정하여 중앙제어부(30)를 통해 냉각능력을 계산하기 위함이다.In addition, the compressor 412 of the heat exchange cycle 41 has a structure in which a refrigerant system 412a capable of measuring a refrigerant flow rate is connected to a rear end thereof. The refrigerant system 412a is to calculate the cooling capacity through the central control unit 30 by measuring the flow rate of the refrigerant circulating through the heat exchange cycle 41.

또한 상기 열교환사이클(41)의 압축기(412)는 후단으로 냉매가스유출 여부를 감지하는 압력계(412b)가 더 연결되는 있는 구조이다. 이는 냉매가스의 유출여부를 감지하여 열교환사이클(41)의 고장 유무를 확인하기 위함이다.In addition, the compressor 412 of the heat exchange cycle 41 has a structure in which a pressure gauge 412b for detecting whether the refrigerant gas is leaked to the rear end is further connected. This is to check whether the heat exchange cycle 41 is broken by detecting whether the refrigerant gas is leaked.

아울러 상기 열교환사이클(41)의 증발기(411)는 유입되는 오일의 온도를 측정할 수 있도록 온도센서(42)가 더 연결되어 있다. 이는 중앙제어부(30)를 통해 순환관(20)의 오일유출구(22)를 통해 배출되는 오일의 온도를 비교하여 냉각능력을 계산할 수 있게 하기 위함이다.In addition, the evaporator 411 of the heat exchange cycle 41 is further connected to a temperature sensor 42 so as to measure the temperature of the incoming oil. This is to compare the temperature of the oil discharged through the oil outlet 22 of the circulation pipe 20 through the central control unit 30 to calculate the cooling capacity.

또한 상기 펌프(441)는 모터(442)를 통해 구동력을 제공하기 커플링(443)과 연결되어 있는 구조이다. 이 때 커플링(443)에는 중앙제어부(30)를 통해 커플링(443)의 파손 유무를 측정하기 위해 접촉센서(443a)가 장착되어 구성된다. 모 터(442) 또는 펌프(441)의 과부하 정도에 따른 커플링의 파손 유/무를 알 수 있다.The pump 441 is also connected to the coupling 443 to provide driving force through the motor 442. At this time, the coupling 443 is equipped with a contact sensor 443a to measure the presence or absence of damage to the coupling 443 through the central control unit 30. It can be seen whether or not the coupling is broken according to the degree of overload of the motor 442 or the pump 441.

아울러 상기 오일쿨러(40)는 대기온도를 측정할 수 있는 대기온도센서(43)가 더 장착되어 대기온도에 따른 열교환사이클(41)의 압축기(412) 가동여부와, 냉매 또는 순환오일유량을 중앙제어부(30)를 통해 제어할 수 있도록 구성된다.In addition, the oil cooler 40 is further equipped with an atmospheric temperature sensor 43 capable of measuring the atmospheric temperature, and whether the compressor 412 of the heat exchange cycle 41 is operated according to the atmospheric temperature, and the refrigerant or the circulating oil flow rate is centered. It is configured to be controlled through the control unit 30.

상기 중앙제어부(30)는 오일탱크(10)와, 오일쿨러(40)와 전기적으로 연결되어 오일쿨러(40) 내부의 측정데이터를 통해 냉매의 유량을 제어하고, 공작기계의 운용조건에 따라 오일탱크(10)의 히터(11)을 제어하여 오일쿨러(40)의 성능을 디스플레이(31)하여 평가하는 기능을 한다. The central controller 30 is electrically connected to the oil tank 10 and the oil cooler 40 to control the flow rate of the refrigerant through the measurement data inside the oil cooler 40, and according to the operating conditions of the machine tool. The heater 11 of the tank 10 is controlled to display 31 to evaluate the performance of the oil cooler 40.

즉, 중앙제어부(30)를 통해 공작기계의 운용조건에 따른 오일탱크(10) 내의 오일 온도를 가변시켜, 각각의 온도센서(42), 대기온도센서(43), 냉매계(412a), 압력계(412b)의 측정데이터에 따라 오일쿨러(40)의 평가를 시험하고, 더불어 오일쿨러의 온도 제어 특성을 확인하고, 대기온도에 따른 상온에서 압축기(412)의 on/off 주기를 확인할 수 있는 것이다. That is, by varying the oil temperature in the oil tank 10 according to the operating conditions of the machine tool through the central control unit 30, each temperature sensor 42, the atmospheric temperature sensor 43, the refrigerant gauge 412a, pressure gauge According to the measurement data of 412b, the evaluation of the oil cooler 40 may be tested, and the temperature control characteristic of the oil cooler may be checked, and the on / off period of the compressor 412 may be confirmed at room temperature according to the atmospheric temperature. .

이하에서는 본 발명에 따른 공작기계 오일쿨러 성능 평가 시험장치의 평가항목에 관하여 간단히 설명하기로 한다.Hereinafter, the evaluation items of the machine tool oil cooler performance evaluation test apparatus according to the present invention will be briefly described.

먼저, 공작기계의 다양한 운전조건에 따라 오일쿨러로 유입되는 오일온도와 유출되는 오일온도를 비교하여 오일쿨러의 냉각능력을 평가할 수 있다.First, the cooling capacity of the oil cooler can be evaluated by comparing the oil temperature flowing into the oil cooler and the oil temperature flowing out according to various operating conditions of the machine tool.

그리고 공작기계의 다양한 운전조건에 따라 펌프/모터에 연결된 커플링의 파손유/무를 알 수 있다.In addition, it is possible to know whether or not the coupling to the pump / motor is broken depending on various operating conditions of the machine tool.

또한 대기온도에 따른 상온에서 압축기의 on/off 주기를 확인할 수 있다.In addition, you can check the on / off cycle of the compressor at room temperature according to the ambient temperature.

또한 공작기계의 다양한 운전조건에 따라 냉매유량을 확인할 수 있다. In addition, the refrigerant flow rate can be checked according to various operating conditions of the machine tool.

또한 공작기계의 다양한 운전조건에 따라 모터 및 펌프의 과부하 여부를 확인할 수 있다.In addition, it is possible to check whether the motor and pump are overloaded according to various operating conditions of the machine tool.

이상에서와 같이 본 발명에 따른 공작기계 오일쿨러 성능 평가 시험장치에 따르면, 실제 공작기계의 운용조건과 동일한 조건으로 오일의 온도를 올려 오일쿨러의 내부로 오일을 순환시키고, 오일쿨러의 내부에는 오일의 온도를 측정할 수 있는 다수의 센서를 구비하여 순환되는 오일의 온도에 따라 오일쿨러의 내부에 구비된 열교환사이클의 냉매를 조절함으로써, 오일쿨러의 성능을 평가할 수 있는 특징이 있다.According to the machine tool oil cooler performance evaluation test apparatus according to the present invention as described above, the oil temperature is circulated in the oil cooler by raising the temperature of the oil under the same conditions as the actual operating conditions of the machine tool, the oil inside the oil cooler It is equipped with a plurality of sensors that can measure the temperature of the oil by adjusting the refrigerant of the heat exchange cycle provided in the interior of the oil cooler according to the temperature of the oil, there is a feature that can evaluate the performance of the oil cooler.

또한 정확한 오일쿨러의 성능을 확인할 수 있어, 공작기계의 규모의 크기에 따라 적절한 오일쿨러를 장착할 수 있는 특징이 있다.In addition, it is possible to check the performance of the oil cooler, it is characterized by the appropriate oil cooler can be installed according to the size of the machine tool.

아울러 오일쿨러의 고장부위를 쉽게 확인할 수 있어 유지보수가 간편한 특징이 있다.In addition, it is easy to check the fault of the oil cooler, so it is easy to maintain.

비록 본 발명이 상기에서 언급한 바람직한 실시예와 관련하여 설명되어졌지만, 본 발명의 요지와 범위로부터 벗어남이 없이 다른 다양한 수정 및 변형이 가능할 것이다. 따라서, 첨부된 청구의 범위는 본 발명의 진정한 범위내에 속하는 그러한 수정 및 변형을 포함할 것이라고 여겨진다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

Claims (6)

공작기계의 운용조건과 같은 발열 상태를 나타낼 수 있도록 히터(11)를 내장한 오일탱크(10);An oil tank (10) having a heater (11) therein so as to indicate a heating state such as operating conditions of a machine tool; 상기 오일탱크(10)와 순환관(20)을 통해 연통되고, 상기 오일탱크(10)의 오일을 강제 순환시키는 펌프(441)/모터(442)와, 순환되는 오일을 냉각시킬 수 있도록 증발기(411)-압축기(412)-응축기(413)-감압기(414)로 구성되는 열교환사이클(41)이 내장되며, 내/외부로 유/출입 되는 오일의 온도를 측정하는 다수의 온도센서(42)가 장착된 오일쿨러(40);In communication with the oil tank 10 and the circulation pipe 20, the pump 441 / motor 442 for forcibly circulating the oil of the oil tank 10, and the evaporator to cool the circulated oil ( 411) Compressor 412-Condenser 413-Reducer 414 has a built-in heat exchange cycle 41, a plurality of temperature sensors 42 for measuring the temperature of the oil flowing in / out / out Mounted oil cooler 40; 상기 오일탱크(10)와, 오일쿨러(40)와 전기적으로 연결되어 오일쿨러(40) 내부의 측정데이터를 통해 냉매의 유량을 제어하고, 공작기계의 운용조건에 따라 오일탱크(10)의 히터(11)을 제어하여 오일쿨러(40)의 성능을 평가하는 중앙제어부(30);를 포함하여 이루어지되,The oil tank 10 and the oil cooler 40 is electrically connected to control the flow rate of the refrigerant through the measurement data inside the oil cooler 40, the heater of the oil tank 10 in accordance with the operating conditions of the machine tool It comprises a; central control unit 30 for controlling the performance of the oil cooler 40 by controlling the (11), 상기 오일쿨러(40)는 모터(442)를 통해 펌프(441)로 구동력을 제공하기 위해 연결되는 커플링(443)의 파손유무를 측정할 수 있도록 커플링(443)에 장착되는 접촉센서(443a)를 더 포함하는 것을 특징으로 하는 공작기계 오일쿨러 성능 평가 시험장치.The oil cooler 40 is a contact sensor 443a mounted to the coupling 443 so as to measure whether the coupling 443 is connected to provide the driving force to the pump 441 through the motor 442. Machine tool oil cooler performance evaluation test apparatus characterized in that it further comprises a). 제 1항에 있어서,The method of claim 1, 상기 압축기(412)는 후단으로 냉매 유량을 측정할 수 있는 냉매계(412a)가 더 연결되는 것을 특징으로 하는 공작기계 오일쿨러 성능 평가 시험장치The compressor 412 is a machine tool oil cooler performance evaluation test apparatus, characterized in that further connected to the refrigerant system (412a) to measure the refrigerant flow rate to the rear end 제 1항에 있어서,The method of claim 1, 상기 압축기(412)는 후단으로 냉매가스유출 여부를 감지하는 압력계(412b)가 더 연결되는 것을 특징으로 하는 공작기계 오일쿨러 성능 평가 시험장치.The compressor (412) is a machine tool oil cooler performance evaluation tester, characterized in that further connected to the pressure gauge (412b) for detecting the refrigerant gas outflow to the rear end. 제 1항에 있어서,The method of claim 1, 상기 증발기(411)는 유입되는 오일의 온도와 측정할 수 있도록 온도센서(42)가 더 연결되어 있어, 오일쿨러(40)로 유/출입되는 오일의 온도와 비교할 수 있도록 구성되는 것을 특징으로 하는 공작기계 오일쿨러 성능 평가 시험장치.The evaporator 411 is further connected to the temperature sensor 42 so as to measure the temperature of the incoming oil, it is characterized in that it is configured to be compared with the temperature of the oil flowing into / out of the oil cooler 40 Machine tool oil cooler performance evaluation tester. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 오일쿨러(40)는 대기온도를 측정할 수 있는 대기온도센서(43)가 더 장착되어 대기온도에 따른 열교환사이클(41)의 압축기(412) 가동여부와, 냉매 또는 순환오일유량을 중앙제어부(30)를 통해 제어할 수 있도록 구성되는 것을 특징으로하는 공작기계 오일쿨러 성능 평가 시험장치.The oil cooler 40 is further equipped with an air temperature sensor 43 capable of measuring the air temperature, and whether the compressor 412 of the heat exchange cycle 41 is operated according to the air temperature, and the refrigerant or the circulating oil flow rate is the central control unit. Machine tool oil cooler performance evaluation test device, characterized in that configured to be controlled through (30).
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US4114425A (en) 1977-07-29 1978-09-19 Albert Edward Hicks Oil cooler tester
KR970048254A (en) * 1995-12-29 1997-07-29 김태구 Thermostat performance measuring device
KR19990032802U (en) * 1997-12-31 1999-07-26 정몽규 Oil Cooling System for Cold Heat Impact Test
KR20050036023A (en) * 2003-10-14 2005-04-20 한국철도기술연구원 Testing apparatus for a cooling unit of an inverter controoling pulling power and method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114425A (en) 1977-07-29 1978-09-19 Albert Edward Hicks Oil cooler tester
KR970048254A (en) * 1995-12-29 1997-07-29 김태구 Thermostat performance measuring device
KR19990032802U (en) * 1997-12-31 1999-07-26 정몽규 Oil Cooling System for Cold Heat Impact Test
KR20050036023A (en) * 2003-10-14 2005-04-20 한국철도기술연구원 Testing apparatus for a cooling unit of an inverter controoling pulling power and method thereof

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