KR20030058487A - Spindle Belt Vibration Sensing Unit in CNC and Method Thereof - Google Patents
Spindle Belt Vibration Sensing Unit in CNC and Method Thereof Download PDFInfo
- Publication number
- KR20030058487A KR20030058487A KR1020010088941A KR20010088941A KR20030058487A KR 20030058487 A KR20030058487 A KR 20030058487A KR 1020010088941 A KR1020010088941 A KR 1020010088941A KR 20010088941 A KR20010088941 A KR 20010088941A KR 20030058487 A KR20030058487 A KR 20030058487A
- Authority
- KR
- South Korea
- Prior art keywords
- belt
- vibration
- spindle
- machine tool
- frequency
- Prior art date
Links
Classifications
-
- 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
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0971—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring mechanical vibrations of parts of the machine
-
- 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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
-
- 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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/408—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
- G05B19/4083—Adapting programme, configuration
-
- 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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4155—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
Abstract
Description
본 발명은 공작기계의 스핀들 벨트 진동 감지장치에 관한 것으로, 특히 스핀들 벨트의 진동을 측정하고, 이를 이용하여 벨트의 장력을 파악하여 필요에 따라 스핀들의 유동을 정지시키도록 함으로서 스핀들을 보호토록 하는 것을 특징으로 하는 공작기계의 스핀들 벨트 진동 감지장치에 관한 것이다.The present invention relates to a spindle belt vibration sensing device of a machine tool, in particular to measure the vibration of the spindle belt, by using this to grasp the tension of the belt to stop the flow of the spindle as needed to protect the spindle The present invention relates to a spindle belt vibration sensing device for a machine tool.
일반적으로 머시닝센터(Machining Center)는 공구를 최고 60개 이상 가진 ATC(Automatic Tool Changer)를 갖춘 NC공작기계 중 가장 진보된 것으로 도 1과 같이 예시할 수 있으며, 키보드를 통하여 기능을 작동 제어하고 작동시 차례로 새로운 가공면에 대응해 필요한 공구를 자동적으로 배치하여 절삭, 천공, 구멍 넓히기, 연마 등 각종 작업을 모두 한 대의 기계로 한다.In general, the machining center (Machining Center) is the most advanced of the NC machine tool with an automatic tool changer (ATC) having up to 60 tools, as shown in Figure 1, the operation control and operation via the keyboard In turn, the necessary tools are automatically arranged to correspond to the new machining surface, and the various operations such as cutting, drilling, hole widening, and polishing are all done in one machine.
따라서, 모든 작업 조건을 미리 예측하여 정해진 작업 순서에 따라 프로그램이 작성되고, 상기 작성된 프로그램에 따라 전자동으로 각종 절삭 공구를 바꾸어 가면서 작업을 한다.Therefore, a program is created according to a predetermined work order by predicting all working conditions in advance, and the work is performed while changing various cutting tools automatically according to the created program.
한편, 도 1에 도시한 바와 같이 공작기계의 주축(스핀들,20)은 주축모터(10)에 의해서 벨트(30)를 통해 동력을 전달받아 구동되는바, 이러한 연결 상태에서 벨트(30)의 장력은 항상 적정상태를 유지하고 있어야 한다. 즉 장력이 작으면 늘어지는 현상으로 동력전달비가 낮아져서 비효율적이며, 장력이 너무 크면 동력전달이 잘 이루어지지 않거나 기기의 손상원인이 되기도 한다.On the other hand, as shown in Figure 1 the main shaft (spindle, 20) of the machine tool is driven by the power transmission through the belt 30 by the main shaft motor 10, the tension of the belt 30 in this connection state Should always be in proper condition. In other words, if the tension is small, the power transmission ratio is lowered and becomes inefficient. If the tension is too high, the power transmission may not be performed well or it may cause damage to the equipment.
따라서, 벨트(30)의 장력은 일정범위에 있어야 바람직하므로, 정기적, 또는 비정기적인 검사를 위해 벨트(30)의 장력을 측정하는수단이 필요하다.Therefore, since the tension of the belt 30 should be in a certain range, a means for measuring the tension of the belt 30 is necessary for regular or irregular inspection.
기존에 있어서 벨트의 장력을 측정하는 수단은 체결 또는 분리된 벨트를 양쪽으로 걸어놓고 그 위에서 하중을 가하여 그 하중에 의해 발생되는 벨트의 변형 정도를 측정하는 방식을 이용한다. 변형정도는 제어부에서 일정관계식에 따라 연산된후 표시부에 표시되어 검사자는 벨트의 장력을 측정할 수 있는 것이다.Conventionally, the means for measuring the tension of the belt is a method of measuring the degree of deformation of the belt caused by the load by hanging the fastened or detached belt on both sides and applying a load thereon. The degree of deformation is calculated according to a certain relational expression in the control unit and then displayed on the display unit so that the inspector can measure the tension of the belt.
그러나, 이러한 장력측정장치는 측정절차를 번거롭게 하므로 보다 간편한 방법으로 빠른 시간내에 벨트의 장력을 측정할수 있는 장치의 개발이 요구되고 있다.However, such a tension measuring device is cumbersome for the measurement procedure, it is required to develop a device that can measure the tension of the belt in a quick way in a simpler way.
본 발명은 전술한 종래의 요구를 구현한 것으로, 벨트가 지니고 있는 고유진동수를 측정하는 방식으로 벨트의 장력을 측정할 수 있는 벨트장력 측정장치를 제공하여 측정의 간편함과 신속함을 추구하는 것을 그 목적으로 한다.The present invention implements the above-described conventional requirements, and provides a belt tension measuring device capable of measuring the tension of the belt in a manner of measuring the natural frequency of the belt to pursue the simplicity and speed of the measurement. The purpose.
상기 목적을 달성하기 위한 수단으로, 본 발명은 전술한 기술적 과제를 실현하기 위한 수단으로 본 발명은, 벨트의 진동을 추출하기 위한 진동검출수단과; 상기 진동검출수단으로부터 측정된 벨트 진동수와 미리 입력된 기준 벨트 진동수를 비교하여 현재의 벨트의 진동수가 기준 벨트 진동수를 벗어날 경우 스핀들의 운전을 중단시키도록 하는 제어부를 포함하여 구성함이 특징이다.As a means for achieving the above object, the present invention is a means for realizing the above-described technical problem, the present invention, vibration detection means for extracting the vibration of the belt; And a controller for comparing the belt frequency measured by the vibration detecting means with a reference belt frequency input in advance to stop the operation of the spindle when the current belt frequency is out of the reference belt frequency.
도 1은 일반적인 공작기계의 스핀들 벨트 연결상태도.1 is a spindle belt connection state of a typical machine tool.
도 2는 본 발명에 있어서 진동장치가 포함된 공작기계의 스핀들 벨트 연결상태도.Figure 2 is a spindle belt connection state of a machine tool including a vibration device in the present invention.
도 3은 본 발명의 구성블록도.3 is a block diagram of the present invention.
도 4는 본 발명의 회로구성도.4 is a circuit diagram of the present invention.
도 5는 본 발명의 동작상태도.5 is an operational state diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10: 주축모터 20: 스핀들10: spindle motor 20: spindle
30: 벨트 110: 진동검출수단30: belt 110: vibration detection means
120: 릴레이 130: 스위치120: relay 130: switch
140: 제어부 150: 기초자료 입력설정수단140: control unit 150: basic data input setting means
160: 비상정지 컨트롤러 170: PMC 컨트롤러160: emergency stop controller 170: PMC controller
이하에서 도면을 참조로 본 발명을 보다 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
본 발명은 벨트의 진동을 추출하기 위한 진동검출수단(110)과; 벨트(30)의 기준 진동수 데이터를 제공하는 입력설정수단(150)과; 상기 진동검출수단(110)으로부터 측정된 벨트 진동수와 입력설정수단(150)으로부터 입력된 기준 벨트 진동수를 비교하여 현재의 벨트의 진동수가 기준 벨트 진동수를 벗어날 경우 스핀들의 운전을 중단시키도록 하는 제어부(140)를 포함하여 구성한다.The present invention and vibration detection means for extracting the vibration of the belt 110; Input setting means 150 for providing reference frequency data of the belt 30; A control unit for comparing the belt frequency measured by the vibration detecting means 110 and the reference belt frequency input from the input setting means 150 to stop the operation of the spindle when the current belt frequency is out of the reference belt frequency ( 140).
즉, 상기 기초자료 입력설정수단(150)은 두 개 이상의 벨트에 대한 기초자료가 사전에 설정 입력된 기억장치를 추가로 구비하여, 사용자가 특정 벨트에 대한 장력 검출을 행하기 전에 상기 기억장치에 설정된 설정내용 중 상기 특정벨트에 대한 기초입력 자료를 임의로 선택하여 입력 설정하고, 이 입력 설정된 기초자료에 따라 상기 특정 벨트에 대한 장력검출을 행할 수 있도록 구성된다.That is, the basic data input setting means 150 further includes a storage device in which the basic data for two or more belts is preset and inputted, so that the user can enter the storage device before the tension detection for the specific belt is performed. The basic input data for the specific belt is arbitrarily selected and set in the set contents, and the tension detection for the specific belt is performed according to the input set basic data.
본 발명의 벨트의 진동을 측정하는 진동검출수단(110)은 벨트로부터 발생되는 고유진동수를 측정하는 수단이다. 마이크로폰과 연산회로를 이용할 수도 있으며, 기타 다른 수단을 사용할 수도 있다.Vibration detecting means 110 for measuring the vibration of the belt of the present invention is a means for measuring the natural frequency generated from the belt. Microphones and arithmetic circuits may be used, or other means may be used.
마이크로폰을 이용하는 경우, 음원(벨트)으로부터 공기를 매질로 하여 전달된 진동음은 마이크로 폰의 감지부(예:박판)를 진동시키고, 그 결과 이 진동은 그 크기에 비례하는 전기적 신호를 발생시킨다. 이 검출된 진동음은 이후 증폭기와 FFT(Fast Fourier Transform) 분석 등을 이용한 주파수 분석을 거치게 된다.When using a microphone, the vibration sound transmitted from the sound source (belt) as air as a medium vibrates the sensing unit (eg, thin plate) of the microphone, and as a result, the vibration generates an electrical signal proportional to its magnitude. The detected vibration sound is then subjected to frequency analysis using an amplifier and fast fourier transform (FFT) analysis.
기초자료 입력설정수단(110)은 벨트에 대한 기준 설정값 내지는 필요에 따라 다른 기준 설정값을 임의로 입력하기 위한 입력부와, 이를 저장하는 기억장치로 구성되며, 운전자가 입력하면 저장소에 기억되어 연산을 위한 자료로 사용된다.The basic data input setting means 110 is composed of an input unit for arbitrarily inputting a reference set value for the belt or other reference set values as necessary, and a storage device for storing the input data. Used as a resource for
입력부는 버튼식일 수도 있고, 기타 다른 수단으로 벨트에 대한 정보를 쉽게 입력하는 수단이 제공될 수도 있다. 기억장치는 버퍼식의 일회적인 것일 수도 있고, 반도체 기억방식, 자기기억방식 어느 것일 수도 있다. 기억장치의 형식은 어느 것이라도 무방하다.The input unit may be a button type or a means for easily inputting information about the belt by other means may be provided. The memory device may be a buffer type one-time type, or may be either a semiconductor memory type or a magnetic memory type. Any type of storage device can be used.
제어수단(140)은 측정 중에는 진동검출수단(110)으로부터의 진동음에서 고유진동수를 산출하고, 이 고유 진동수와 미리 입력된 데이터 또는 기초자료 입력설정수단(150)으로부터의 설정값과 비교토록 한다.The control means 140 calculates the natural frequency from the vibration sound from the vibration detecting means 110 during measurement, and compares the natural frequency with a setting value from the pre-input data or the basic data input setting means 150.
비교결과 설정된 기준을 벗어날 경우에는 PLC 릴레이(120)를 작동시켜, 비상회로 라인의 릴레이 스위치(130)를 제어함으로서 공작기계의 동작을 중단시키도록 한다.When the comparison is out of the set standard, the PLC relay 120 is operated to control the relay switch 130 of the emergency circuit line to stop the operation of the machine tool.
실제 사용상태는 다음과 같다. 벨트(30)에 대한 정보들은 사전에 입력 설정되고 시험자는 벨트의 주위에 진동검출수단(110)을 가져간다. 이후 벨트(30)에 진동을 가하도록 하며, 여기서 측정되는 벨트(30)의 진동과 미리 입력된 기준 벨트 진동과 비교하여 기준을 벗어나게 되면 PMC 컨트롤러(170)의 릴레이(120)를 작동시켜 비상정지 컨트롤러(160) 라인의 릴레이 스위치(130)를 오프시킴으로서 공작기계의 작동을 중단시키도록 한다.The actual state of use is as follows. Information about the belt 30 is inputted in advance and the tester carries the vibration detecting means 110 around the belt. After the vibration is applied to the belt 30, and when the deviation from the standard compared to the vibration of the belt 30 measured in advance and the reference belt input in advance to operate the relay 120 of the PMC controller 170 emergency stop By turning off the relay switch 130 of the controller 160 line, the operation of the machine tool is stopped.
따라서, 본 발명에 따르면 스핀들 모터를 정지시켜 벨트의 구동을 정지시킬 수가 있어 고가의 공작기계를 보호할 수 있게 된다.Therefore, according to the present invention, it is possible to stop the drive of the belt by stopping the spindle motor to protect expensive machine tools.
도 5는 본 발명의 동작순서도로서,5 is an operation flowchart of the present invention.
공작기계의 주축 연결 벨트의 진동을 측정하는 제 1 단계(S1)와;A first step (S1) of measuring vibration of the spindle connecting belt of the machine tool;
미리 입력된 기준 진동값과 비교하는 제 2 단계(S2)와;A second step S2 of comparing the reference vibration value input in advance;
상기 제 2 단계(S2)에서 기준값을 벗어날 경우 공작기계의 자동운전을 멈추고 동시에 비상 상태임을 전달하기 위해 알람을 행하는 제 3 단계(S3)와;A third step (S3) of making an alarm to stop the automatic operation of the machine tool and at the same time to transmit an emergency state when the reference value is out of the second step (S2);
상기 제 2 단계(S2)에서 기준값을 벗어나지 않을 경우 자동운전을 계속적으로 실행하는 제 4 단계(S4)로 이루어져 순차 진행한다.If it does not deviate from the reference value in the second step (S2) is made of a fourth step (S4) to continue the automatic operation to proceed sequentially.
상술한 바와 같이 본 발명을 이용하게 되면 벨트가 회전하는 도중에 장력을 실시간으로 점검하므로 벨트의 이상으로 인한 공작기계의 파손을 미연에 방지토록 하는 효과를 제공한다.As described above, by using the present invention, the tension is checked in real time while the belt is rotating, thereby providing an effect of preventing damage to the machine tool due to the abnormality of the belt.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010088941A KR20030058487A (en) | 2001-12-31 | 2001-12-31 | Spindle Belt Vibration Sensing Unit in CNC and Method Thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010088941A KR20030058487A (en) | 2001-12-31 | 2001-12-31 | Spindle Belt Vibration Sensing Unit in CNC and Method Thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20030058487A true KR20030058487A (en) | 2003-07-07 |
Family
ID=32216391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010088941A KR20030058487A (en) | 2001-12-31 | 2001-12-31 | Spindle Belt Vibration Sensing Unit in CNC and Method Thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20030058487A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805653B1 (en) * | 2006-11-23 | 2008-02-21 | 삼화페인트공업주식회사 | Low-odor type non-aqueous dispersion acrylurethane coating composition |
| CN108942407A (en) * | 2018-08-27 | 2018-12-07 | 奇瑞汽车股份有限公司 | A kind of machining center main shaft belt fracture detection device and method |
-
2001
- 2001-12-31 KR KR1020010088941A patent/KR20030058487A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805653B1 (en) * | 2006-11-23 | 2008-02-21 | 삼화페인트공업주식회사 | Low-odor type non-aqueous dispersion acrylurethane coating composition |
| CN108942407A (en) * | 2018-08-27 | 2018-12-07 | 奇瑞汽车股份有限公司 | A kind of machining center main shaft belt fracture detection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9186765B2 (en) | Monitoring method and monitoring apparatus for machine tool, and machine tool | |
| Soliman et al. | Chatter detection by monitoring spindle drive current | |
| JP5937727B1 (en) | Tool wear evaluation device | |
| KR101626458B1 (en) | Apparatus for detecting malfunction of tool for machine tool | |
| US20220163944A1 (en) | Apparatus for detecting status of tool in machine tool | |
| KR20030058487A (en) | Spindle Belt Vibration Sensing Unit in CNC and Method Thereof | |
| KR100952619B1 (en) | The method of defecting badness for dealing a machine | |
| JPH10286743A (en) | Tool abnormality detection device for machine tool, and recording medium in which tool abnormality detecting program for machine tool is recorded | |
| JPH1110482A (en) | Automatic sizing device | |
| JPH10146740A (en) | Tool abnormality detection device | |
| JP2007122575A (en) | Motor controller | |
| KR20160079372A (en) | Monitoring device of tool install condition for machine tool | |
| US9772357B1 (en) | Diagnostic apparatus | |
| JP2002187048A (en) | Cutting resistance measurement method of machine tool | |
| JPH06238561A (en) | Determination of dressing timing for grinding wheel | |
| JP2001150302A (en) | Machining result recording device | |
| JP2023008825A (en) | Diagnosis system and diagnosis method | |
| JP2978812B2 (en) | Semiconductor test apparatus and test method thereof | |
| JPH10149493A (en) | Abnormal equipment detector for automobile | |
| KR19990000963A (en) | Cutting detection system of machine tool | |
| KR20000025328A (en) | Processing monitoring apparatus of semiconductor devices fabrication facility | |
| JPH02131840A (en) | Numerical control perforator equipped with tool breakdown detector | |
| JP2020202693A (en) | Fan motor, fan motor drive, and cooling device | |
| JPS61117051A (en) | Tool breakage detecting apparatus | |
| KR20060065225A (en) | Wafer rotation system in semiconductor device manufacturing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |