JP2006011897A - Electric power monitoring system for machining apparatus - Google Patents

Electric power monitoring system for machining apparatus Download PDF

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JP2006011897A
JP2006011897A JP2004189184A JP2004189184A JP2006011897A JP 2006011897 A JP2006011897 A JP 2006011897A JP 2004189184 A JP2004189184 A JP 2004189184A JP 2004189184 A JP2004189184 A JP 2004189184A JP 2006011897 A JP2006011897 A JP 2006011897A
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power
machine
monitoring
machining
data
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Koji Kasai
孝二 笠井
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device and a system capable of effectively improving labor saving for facility management regarding an electric power monitoring system provided with a facility diagnosis system diagnosing malfunction of electrically-powered devices composed of a motor or the like through a power consumption rate or the like on a network and for monitoring all facilities in whole. <P>SOLUTION: The electric power monitoring system for machining apparatus comprises a power measuring device having a measuring means for measuring voltage and current in an electric circuit supplying power to the machining apparatus, a power measuring means for measuring a power consumption rate of the machining apparatus from the voltage and current of the electric circuit measured by the measuring means, and a monitoring means for monitoring machining conditions of the machining apparatus from the power consumption rate measured by the power measuring means; and a central monitoring device having a memory for collecting the power consumption rate of the machining apparatus obtained by the power measuring device or condition monitoring data and memorizing collected data, and a function for transmitting the optimum value among the data in the memory to the power measuring device. Thus, timing of parts exchange and information for maintenance and repair work for the machining apparatus can be obtained from the operation conditions of the machining apparatus, and effective utilization of the whole facilities can be attained. Loss for man-hours and materials, and overall machining and quality loss can be improved because the power monitoring system has an effect which may be one means to prevent manufacture of defective machined products in advance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、モータ等により構成される、電動機器の異常を電力値等により診断する設備診断装置に関するもで、前記診断装置をネットワーク上に構成し全設備を一括で監視する電力監視装置に関するものである。   The present invention relates to a facility diagnosis apparatus that is configured by a motor or the like and diagnoses an abnormality of an electric device by a power value or the like, and relates to a power monitoring apparatus that configures the diagnosis apparatus on a network and monitors all facilities collectively. It is.

従来、電動機等の回転機器においては、使用に伴い取付け部の弛み、損傷、または軸受けや部品の劣化・損傷等が生じ、時によっては直ちに運転を停止してその対応を講じなければならない場合がある。このような状況下、従来は前記状態を避けるため、一定期間ないしは一定作業回数を目安に各機械加工機器のメンテ・補修を行なっていた。   Conventionally, in rotating equipment such as electric motors, the mounting part has become loose or damaged with use, or the bearings and parts have deteriorated or damaged. In some cases, it is necessary to stop the operation immediately and take measures accordingly. is there. Under such circumstances, conventionally, in order to avoid the above-described state, each machining device has been maintained and repaired for a certain period or a certain number of operations.

もしくは、同機械加工機器や全体設備の電力値等機器の計測項目を監視し電力値の異常により設備診断を行なう手段が検討されているが、この場合個々の機械加工機の監視であり、設備全体を一括で監視する手段等は設けられていないのが現状である。この種の技術としては、例えば特許文献１のような技術が公開されている。
特開２００４−１３３５５３号公報 Alternatively, measures are being taken to monitor equipment measurement items such as power values of the machining equipment and overall equipment, and to diagnose equipment due to power value abnormalities. At present, there is no means for monitoring the whole at once. As this type of technology, for example, a technology as disclosed in Patent Document 1 is disclosed.
JP 2004-133553 A

上記従来の技術によると、例えば一定期間・一定作業回数による部品の交換や設備メンテ・補修作業による場合は、部品の磨耗・劣化状況により、まだまだ交換不要な部品等の存在もあり、昨今の省エネ・設備有効利用の観念から反してしまう。反対に、劣化・磨耗が激しい場合は交換機会前に設備不良が発生し、不良加工品を次作業工程に流してしまい、工数ロスや材料ロスばかりで無くトータル的な加工・品質ロスを招く恐れがある。   According to the above-mentioned conventional technology, for example, when parts are replaced for a certain period of time and the number of operations, and maintenance and repair work is performed, there are still parts that do not need to be replaced due to wear and deterioration of parts.・ It is contrary to the idea of effective use of equipment. On the other hand, if the deterioration or wear is severe, equipment failure will occur before the replacement opportunity, and the defective processed product may be flowed to the next work process, leading to not only man-hour loss and material loss but also total processing and quality loss. There is.

また、本課題に関し、電力値等で設備診断を行なう技術も検討されているが、個々の設備監視のみであり設備管理に関する省力化の観点からすると有効性が計れていないのが現状である。   In addition, regarding this problem, a technique for performing equipment diagnosis based on the power value or the like has been studied, but the current situation is that it is only effective for individual equipment monitoring and is not effective from the viewpoint of labor saving concerning equipment management.

上記目的を達成するために、本発明に係るは機械加工機電力監視装置は、機械加工機に電力供給する電路での電圧および電流を計測する計測手段と前記計測手段で求めた前記電路の電圧および電流から前記機械加工機の電力値を求める電力計測手段と前記電力計測手段により計測した電力値から機械加工機の状態を監視する監視手段を有した電力計測装置と、前記電力計測装置で求めた前記機械加工機の電力値もしくは状態監視データを収集しかつ収集データをメモリするメモリ部と同メモリ部のデータから最適値を前記電力計測装置に送信する機能を有する中央監視装置とより構成したものである。   In order to achieve the above object, according to the present invention, a machine power monitoring apparatus includes a measuring unit that measures a voltage and a current in an electric circuit that supplies power to the machining machine, and a voltage of the electric circuit that is obtained by the measuring unit. And a power measuring device having power measuring means for obtaining the power value of the machining machine from the current, a monitoring means for monitoring the state of the machining machine from the power value measured by the power measuring means, and obtained by the power measuring device. In addition, it comprises a memory unit that collects the power value or state monitoring data of the machining machine and stores the collected data, and a central monitoring device that has a function of transmitting an optimum value from the data in the memory unit to the power measuring device. Is.

また、本発明の機械加工機電力監視装置は機械加工機内部にて分岐された各電力供給路毎の電圧および電流を計測する計測手段と、前記計測手段で求めた同各電力供給路毎の電圧および電流から前記各電力供給路毎の電力値を求める電力計測手段と、前記電力計測手段により計測した各電力供給路毎の電力値から機械加工機の状態を監視する監視手段を有した電力計測装置と、前記電力計測装置で求めた前記機械加工機の電力値もしくは状態監視データを収集しかつ収集データをメモリするメモリ部と同メモリ部のデータから最適値を前記電力計測装置に送信する機能を有する中央監視装置とより構成したものである。   Further, the machine power monitoring apparatus of the present invention includes a measuring means for measuring the voltage and current of each power supply path branched inside the machining machine, and the power supply path for each power supply path obtained by the measuring means. Electric power having power measuring means for obtaining a power value for each power supply path from voltage and current, and monitoring means for monitoring the state of the machine tool from the power value for each power supply path measured by the power measuring means The power value or state monitoring data of the machining machine obtained by the measuring device and the power measuring device is collected, and an optimum value is transmitted to the power measuring device from the data in the memory unit and the memory unit storing the collected data It consists of a central monitoring device with functions.

また、本発明は前記電力計測装置で求めた各電力値ないしは状態監視データをネットワーク網を介してデータ収集するよう構成した監視装置とより構成した機械加工機電力監視装置である。   Further, the present invention is a machining machine power monitoring device configured by a monitoring device configured to collect each power value or state monitoring data obtained by the power measuring device via a network.

また、本発明の機械加工機は切削加工機に用い、特にドリル刃を用いて切削する設備加工機に用い効果を発揮するよう構成したものである。   Further, the machining machine of the present invention is used in a cutting machine, and is particularly configured to be used in an equipment processing machine for cutting with a drill blade.

更に、本発明は複数台の前記電力計測装置と監視装置から機械加工機電力監視装置のシステム化を計っている。   Furthermore, the present invention aims at systematization of a machine tool power monitoring device from a plurality of power measuring devices and monitoring devices.

本構成によると容易かつ安価な構成で設備機器監視装置及び同装置システムを構成できる他、離れた場所にて複数の設備を監視することが可能となり、設備メンテ・補修作業の省力化にも寄与することが可能となる。   According to this configuration, it is possible to configure the equipment monitoring device and system with an easy and inexpensive configuration, and it is possible to monitor multiple facilities at remote locations, contributing to labor saving of equipment maintenance and repair work. It becomes possible to do.

更に、本発明の機械加工機電力監視装置における中央監視装置は、収集した機械加工機の電力値もしくは状態監視データから機械加工機の状態変化の有無を判定表示する判定表示手段を有する構成としたものである。   Further, the central monitoring device in the machine power monitoring apparatus of the present invention is configured to have a determination display means for determining whether or not there is a change in the state of the machine from the collected power value or state monitoring data of the machine. Is.

また、中央監視装置は、機械加工機の状態変化を警報もしくは表示手段にて出力する出力手段を有する構成としたものである。   The central monitoring device has an output means for outputting a change in the state of the machining machine by an alarm or a display means.

また、表示出力手段はネットワーク網にてデータ収集される各機械加工機毎及びそのネットワーク網とを簡易的・ブロック的に表示構成するスケルトン表示により構成したものである。   Further, the display output means is constituted by a skeleton display that displays each machine tool for which data is collected on the network network and the network network in a simple and block manner.

また、表示出力手段には、少なくも複数種類の意味付けをした表示内容を持たせるよう構成したものであり、例えば「注意警報」、「要求警報」等、該当機械加工機の監視状態結果に応じ表示出力を行なうよう構成したものである。   In addition, the display output means is configured to have display contents having at least a plurality of types of meanings. For example, the warning state of the corresponding machine tool, such as “caution alarm” and “request alarm”, is displayed. In response, the display is output.

上記構成によると、メンテ・補修等の作業の必要性及びが作業必要性の有る設備を容易に識別できるよう構成したものである。   According to the said structure, it is comprised so that the necessity of work, such as maintenance and repair, and the installation with work need can be identified easily.

更に、中央監視装置は判定表示手段の判定結果より該当する設備に対し制御信号かつ設定値情報をを出力するよう構成したものである。   Further, the central monitoring device is configured to output a control signal and set value information to the corresponding equipment from the determination result of the determination display means.

更に、判定手段は、所定時間内における機械加工機の電力値が所定値以上であればドリル刃の交換もしくは補修が必要であると判定するよう構成したものである。   Further, the determination means is configured to determine that the drill blade needs to be replaced or repaired if the power value of the machining machine within a predetermined time is equal to or greater than a predetermined value.

本発明によれば、機械加工機の部品交換や同加工機の設備メンテ・補修作業情報を同加工機の状態から得ることができるため、従来から有する課題を解決でき、設備の有効利用が図れる。更には不良加工品の流出を事前に防ぐ一手段になりうる効果う有するため、工数ロスや材料ロスばかりで無くトータル的な加工・品質ロスの改善に寄与することも可能である。よって、省エネ・設備有効利用の観点。更には設備管理に関する省力化の観点から有効性が計れる装置・システムを提供することが可能となる。   According to the present invention, parts replacement of a machining machine and equipment maintenance / repair work information of the machining machine can be obtained from the state of the machining machine, so that the conventional problems can be solved and the equipment can be used effectively. . Furthermore, since it has an effect that can be a means to prevent the outflow of defective processed products in advance, it can contribute not only to man-hour loss and material loss but also to improvement of total processing and quality loss. Therefore, from the viewpoint of energy saving and effective use of equipment. Furthermore, it is possible to provide an apparatus / system that can be effective from the viewpoint of labor saving related to facility management.

本発明の機械加工機電力監視装置は、第一に機械加工機毎に電力供給する電路での電圧および電流を計測する計測手段と、当該装置であることを認識するためのアドレス設定及び同設定値を記憶するアドレス部と、前記計測手段で求めた前記電路の電圧および電流から前記機械加工機の電力値を求める電力計測手段と、前記電力計測手段により計測した電力値から機械加工機の状態を監視する監視手段とを有した電力計測装置と、第二に前記電力計測装置を有する機械加工機ないしは複数の機械加工機を同一のネットワーク上に配置し設備のシステム化を構成し、更に第三に前記システム上に配置された機械加工機ないしは複数の機械加工機の計測・監視情報をネットワーク網を介し収集し、同計測情報より設備加工機の状態変化の有無。例えばメンテ・補修の必要性を判定表示する判定表示手段と、更に同判定手段の結果から機械加工機に制御信号かつ設定値情報を出力する制御信号出力手段とより構成した中央監視装置から本機械加工機電力監視装置及び同装置システムを構成する。   The machining machine power monitoring apparatus of the present invention includes a measuring means for measuring voltage and current in an electric circuit for supplying power to each machining machine, and address setting and setting for recognizing the apparatus. An address section for storing a value; power measuring means for obtaining a power value of the machining machine from the voltage and current of the electric circuit obtained by the measuring means; and a state of the machining machine from the power value measured by the power measuring means A power measuring device having a monitoring means for monitoring the power, and secondly, a machining machine or a plurality of machining machines having the power measuring device are arranged on the same network to constitute a system of equipment, and Thirdly, measurement / monitoring information of a machining machine or a plurality of machining machines arranged on the system is collected through a network, and whether there is a change in the state of the equipment machine from the measurement information. For example, the machine can be controlled by a central monitoring device comprising a judgment display means for judging and displaying the necessity of maintenance / repair, and a control signal output means for outputting a control signal and set value information to the machine tool from the result of the judgment means. A processing machine power monitoring apparatus and the apparatus system are configured.

上記構成によると、容易かつ安価な構成で設備機器監視装置及び同装置システムを実現できる他、本監視システム構成によると、離れた場所にて複数の設備を監視することが可能となり、設備メンテ・補修作業の省力化へ寄与することが可能となる。   According to the above configuration, the equipment monitoring device and the equipment system can be realized with an easy and inexpensive configuration. In addition, according to the configuration of the monitoring system, it is possible to monitor a plurality of facilities at remote locations. It is possible to contribute to labor saving of repair work.

以下、本発明に係る機械加工機電力監視装置及び同装置システムの実施例について図面を基に説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a machine power monitoring apparatus and apparatus system according to the present invention will be described below with reference to the drawings.

《第１の実施例》
以下、本発明の第１の実施例の機械加工機電力監視装置について、図面を用いて説明する。 << First Example >>
A machine tool power monitoring apparatus according to a first embodiment of the present invention will be described below with reference to the drawings.

図１は本発明に係わる機械加工機１に設けた電力計測装置２の構成を示すものであり、機械加工機１における電力供給路２ａの電流を計測する変流器（ＣＴ）２１と、同供給路の電圧を計測する変圧器（ＰＴ）２２と、前記変流器２１と変圧器２２の信号を乗算し電力値を計測する電力値演算部２３と、前記電力値演算部２３の電力値データより機械加工機１の状態を監視する状態監視部２４と、データの送受信を可能とした送受信部２５と、自局装置であることを認識させるためのアドレスを設定し、かつ記憶するアドレス部２６より構成したものであり、本実施例においては該当する機械加工機１の電力値及び同電力値から機械加工機１の状態を複数段階に区別し監視するよう構成したものである。   FIG. 1 shows a configuration of a power measuring device 2 provided in a machining machine 1 according to the present invention, and a current transformer (CT) 21 for measuring a current in a power supply path 2a in the machining machine 1 is shown. A transformer (PT) 22 that measures the voltage of the supply path, a power value calculator 23 that multiplies the signals of the current transformer 21 and the transformer 22 and measures a power value, and a power value of the power value calculator 23 A status monitoring unit 24 that monitors the state of the machine tool 1 from data, a transmission / reception unit 25 that enables transmission / reception of data, and an address unit that sets and stores an address for recognizing that the device is a local station device In this embodiment, the power value of the corresponding machine tool 1 and the state of the machine tool 1 are distinguished and monitored in a plurality of stages based on the same power value.

また本実施例においては同機械加工機１をドリルを用いた切削加工機に用い機械加工機電力監視装置４を構成した。尚、図６は本電力計測装置２を設けた機械加工機１、本実施例においてはドリルを用いた切削加工機の稼動時の電力値推移を示したものである。   In this embodiment, the machining machine power monitoring device 4 is configured by using the machining machine 1 as a cutting machine using a drill. FIG. 6 shows the power value transition during operation of the machining machine 1 provided with the power measuring device 2, and in this embodiment, a cutting machine using a drill.

図２は本発明に用いた中央監視装置３の構成を示すものであり、データの送受信を司る送受信部３１と、送受信データを解析し表示出力部に制御信号を出力する演算部３２と、演算部３２のデータに基づき機械加工機１の状態を２種類の表示ＬＥＤにより表示する表示部３３と、機械加工機１より収集したデータを保存するメモリ部３４より構成したものであり、更に中央監視装置３は送受信部３１を用い演算部３２の解析結果に基づき、表示部３３に連動し該当する機械加工機１に制御信号を出力する機能を有することで、本発明に係わる中央監視装置３を構成している。   FIG. 2 shows a configuration of the central monitoring device 3 used in the present invention, a transmission / reception unit 31 that controls transmission / reception of data, a calculation unit 32 that analyzes transmission / reception data and outputs a control signal to a display output unit, It comprises a display unit 33 that displays the state of the machining machine 1 based on the data of the unit 32 by two types of display LEDs, and a memory unit 34 that stores data collected from the machining machine 1, and further includes a central monitoring function. The device 3 has a function of outputting a control signal to the corresponding machining machine 1 in conjunction with the display unit 33 based on the analysis result of the calculation unit 32 using the transmission / reception unit 31, so that the central monitoring device 3 according to the present invention is provided. It is composed.

図３は前述の電力計測装置２を有する機械加工機１と中央監視装置３、及び機械加工機１と中央監視装置３の間にあってデータを通信する通信媒体である通信ケーブル３ａを用い構成した機械加工機電力監視装置４の構成を示したものであり、その動作・機能について説明する。   FIG. 3 shows a machine configured using a machining machine 1 and a central monitoring device 3 having the power measuring device 2 described above, and a communication cable 3a which is a communication medium between the machining machine 1 and the central monitoring device 3 for communicating data. The configuration of the processing machine power monitoring device 4 is shown, and its operation and function will be described.

中央監視装置３は、機械加工機１に設けられた電力計測装置２にデータ要求を行なう構成とし、通常は機械加工機１の作業一回当たりの平均電力値及び作業回数データをデータ収集する構成とする。中央監視装置３においては、通常は作業回数データ及び平均電力値データをメモリに保存し、将来的な状態監視用の条件判断用データとしてメモリに保存し、データ活用できるようデータベース化が図れる構成としている。   The central monitoring device 3 is configured to make a data request to the power measuring device 2 provided in the machining machine 1, and normally collects data on the average power value and work frequency data per work of the machining machine 1. And In the central monitoring device 3, the operation count data and the average power value data are usually stored in the memory, stored in the memory as condition judgment data for future state monitoring, and configured as a database so that the data can be used. Yes.

尚、特に図示はしていないが機械加工機１に設けられた電力計測装置１においては、同データベースのデータから最適な状態監視データを受信すると状態監視に必要なデータを変更し設定できる構成としている。本発明においては、以降に記す機械加工機１の状態監視に用いる閾値情報にて構成した。   Although not specifically shown, the power measuring device 1 provided in the machining machine 1 is configured to change and set data necessary for state monitoring when optimal state monitoring data is received from the data in the database. Yes. In this invention, it comprised by the threshold value information used for the state monitoring of the machining machine 1 described below.

次に機械加工機１においては、同機械加工機１に設けられた電力計測装置２において、計測された電力値データより機械加工機１の状態に変化を検出すると、機械加工機１の状態変化を表示するデータを緊急データとして出力するよう構成している。中央監視装置３においては、本緊急データを受信すると同データ内容に基づき、機械加工機１の状態を判断し監視情報を表示出力する。   Next, in the machining machine 1, when the power measuring device 2 provided in the machining machine 1 detects a change in the state of the machining machine 1 from the measured power value data, the state change of the machining machine 1 is detected. Is displayed as emergency data. When the central monitoring device 3 receives the emergency data, the central monitoring device 3 determines the state of the machining machine 1 based on the contents of the data, and displays and outputs monitoring information.

この場合、前述した通り、電力計測装置２における複数段階の状態監視情報により、そのデータに応じた表示データを識別して表示するよう構成している。本実施例においては異色のＬＥＤ２個を用い表示手段を構成し、計測した機械加工機の状態により「注意警報」／「要求警報」として識別表示するよう構成としている。   In this case, as described above, the display data corresponding to the data is identified and displayed by the state monitoring information in a plurality of stages in the power measuring device 2. In the present embodiment, the display means is configured by using two LEDs of different colors, and is configured to be identified and displayed as “caution alarm” / “request alarm” depending on the measured state of the machine tool.

更に表示色については「注意警報」時には橙ＬＥＤにより表示し、かつ「要求警報」については赤ＬＥＤにより表示するよう構成した。尚、前述した通り「要求警報」状態時を認識した場合は、併せて機械加工機１に制御信号を出力するよう構成している。この制御信号は機械加工機１の「稼動／停止」信号に用いることにより機械加工機の不具合が発生した場合、機械加工機を停止させ加工不具合による加工品（ワーク）の不具合流出を未然に防ぐことも可能となる。   Further, the display color is displayed by an orange LED at the time of “caution alarm”, and the “request alarm” is displayed by a red LED. As described above, when the “request alarm” state is recognized, a control signal is output to the machining machine 1 together. This control signal is used as an “operation / stop” signal for the machining machine 1, so that when a malfunction of the machining machine occurs, the machining machine is stopped to prevent a malfunction (work) from flowing out due to the machining malfunction. It is also possible.

また、警報出力については、それぞれ「注意警報」時は数秒間隔のブザー音を一定期間出力し、「要求警報」時には連続ブザー音を一定期間出力する構成としてもよい。尚、これらのＬＥＤ表示や警報音出力については、他色のＬＥＤや別の識別音による方法、更には別手段による方法であってもよい。   As for the alarm output, a buzzer sound at intervals of several seconds may be output for a certain period at the time of “caution alarm”, and a continuous buzzer sound may be output for a certain period at the time of “request alarm”. In addition, about these LED display and warning sound output, the method by another color LED, another identification sound, and the method by another means may be sufficient.

上記したように本構成の機械加工機電力監視装置４によると安価な構成で機械加工機の状態監視を行うことができ、かつ離れた場所で設備の状態監視が可能になり、必要により必要な場所にて機械加工機１の状態監視を行うことが可能になる。また、表示出力方法については電力計測装置２の判断情報により識別表示させること、本実施例においては「注意警報」として識別出力させることで、設備メンテ・補修の情報提供（例えば、作業日時の予測）を可能とする。   As described above, according to the machine power monitoring device 4 of the present configuration, it is possible to monitor the state of the machining machine with an inexpensive configuration, and it is possible to monitor the state of the equipment at a remote location, which is necessary if necessary. It becomes possible to monitor the state of the machining machine 1 at a place. In addition, the display output method is identified and displayed based on the judgment information of the power measuring device 2, and in this embodiment is identified and output as a “caution alarm”, thereby providing information on equipment maintenance / repair (for example, prediction of work date and time). ) Is possible.

《第２の実施例》
以下、本発明の第２の実施例について図面を用いて説明する。尚、第２の実施例は第１の実施例に対し電力計測装置２を有する複数台の機械加工機１を同一システム上に配置し複数台の機械加工機１を監視できるようシステム構成化したものであり、その他は第１の機械加工機電力監視装置４と同じである。従って、図６において第１の実施例の機械加工機電力監視装置４と同じ機能、構成を有するものには同じ符号を付し、その機能・動作については説明は省略する。 << Second Embodiment >>
The second embodiment of the present invention will be described below with reference to the drawings. Note that the second embodiment has a system configuration in which a plurality of machining machines 1 having a power measuring device 2 are arranged on the same system and the plurality of machining machines 1 can be monitored as compared to the first embodiment. The others are the same as those of the first machine power monitor 4. Accordingly, in FIG. 6, the same reference numerals are given to the components having the same functions and configurations as those of the machining machine power monitoring device 4 of the first embodiment, and descriptions of the functions and operations are omitted.

図６は前述の電力計測装置２を有する複数台の機械加工機１と中央監視装置３及びシステム構成に必要な必要機器、例えば通信媒体である通信ケーブル３ａを用い構成した機械加工機電力監視装置システムの構成を示したものである。   FIG. 6 shows a machining machine power monitoring apparatus configured by using a plurality of machining machines 1 having the power measuring apparatus 2 described above, a central monitoring apparatus 3, and necessary equipment for the system configuration, for example, a communication cable 3a as a communication medium. It shows the configuration of the system.

上記構成によると、中央監視装置３はネットワーク上に構成された機械加工機１に設けられた電力計測装置２にデータ要求を行なう構成とする。通常は機械加工機１は機械加工機１の作業一回当たりの平均電力値及び作業回数データを送信し、また同機械加工機１に設けられた電力計測装置２において、計測された電力値データより機械加工機１の状態に変化を検出すると、機械加工機１の状態変化を緊急データとして央監視装置３に出力するよう構成したもので、基本的な動作・機能は第1の実施例に示す機械加工機電力監視装置４と同機能を有する。   According to the above configuration, the central monitoring device 3 is configured to make a data request to the power measuring device 2 provided in the machining machine 1 configured on the network. Normally, the machining machine 1 transmits the average power value and work frequency data per operation of the machining machine 1, and the power value data measured by the power measurement device 2 provided in the machining machine 1. When a change in the state of the machining machine 1 is detected, the state change of the machining machine 1 is output to the central monitoring device 3 as emergency data. The basic operation and function are the same as those in the first embodiment. It has the same function as the machine power monitor 4 shown.

本実施例においては、機械加工機１がデータを出力する場合、事前に設定された自局（当該装置）アドレスと共に計測・監視データを中央監視装置３にデータを出力するよう構成している。また中央監視装置３においては、緊急データを受信すると同データ内容に基づき、第一にアドレスにより状態変化が発生した機械加工機１を選別し該当する機械加工機１の状態を表示出力する機能を付加している。   In the present embodiment, when the machining machine 1 outputs data, the measurement / monitoring data is output to the central monitoring device 3 together with a preset local station (device) address. Further, the central monitoring device 3 has a function of receiving the emergency data and first selecting the machining machine 1 in which the state change has occurred based on the contents of the data, and displaying and outputting the state of the corresponding machining machine 1. It is added.

ここで、表示内容に関しては第１の実施例に示す機械加工機電力監視装置４と同機能を有するが、本実施例においては図５に示すようなシステム全体をスケルトン表示による構成としている。図５において５ａは機械加工機１を示すブロック表示で通常は緑色で表示する構成としている。また、５ｂは機械加工機が配置されている配置場所を基準に作成されたネットワーク網を示しているものであり通常は青色で表示されている。   Here, the display contents have the same function as the machine power monitoring apparatus 4 shown in the first embodiment, but in this embodiment, the entire system as shown in FIG. 5 is configured by skeleton display. In FIG. 5, reference numeral 5a denotes a block display showing the machining machine 1, which is normally displayed in green. Reference numeral 5b denotes a network created on the basis of an arrangement place where the machining machine is arranged, and is usually displayed in blue.

本表示手段においては、状態変化が発生した時点で、該当する機械加工機１を色別表示させることで、該当機器をすばやく認識できるよう構成している。本実施例においては、表示手段として「注意警報」時には該当する機械加工機１を示すブロック表示を橙色により表示し、「要求警報」については同ブロック表示を赤色にて表示するよう構成した。   The display means is configured to quickly recognize the corresponding device by displaying the corresponding machine tool 1 by color when a state change occurs. In the present embodiment, the display means is configured to display the block display indicating the corresponding machine tool 1 in orange at the time of “caution alarm”, and to display the block display in red for “request alarm”.

上記したように本構成の機械加工機監視装置システムによると、機械加工機電力監視装置４に挙げた効果の他、離れた場所にて複数台の設備監視が可能であり、必要により必要な場所にて複数台の機械加工機１の状態監視を行うことが可能になる。また、容易に状態変化が発生した機械加工機を識別することが可能になり、速やかな設備メンテ・補修対応が可能となる。よって設備監視に対しメンテ・補修作業の省力化にも寄与することが可能となり、同目的に対しトータル的な省エネ・省力化を可能とする。   As described above, according to the machine tool monitoring device system of this configuration, in addition to the effects mentioned in the machine power monitor 4, it is possible to monitor a plurality of facilities at remote locations, and if necessary, the necessary locations. Thus, it becomes possible to monitor the state of a plurality of machining machines 1. In addition, it becomes possible to easily identify the machining machine in which the state change has occurred, and it is possible to promptly maintain and repair the equipment. Therefore, it is possible to contribute to labor saving of maintenance and repair work for equipment monitoring, and total energy saving and labor saving can be achieved for the same purpose.

《第３の実施例》
以下、本発明の第３の実施例について図面を用いて説明する。 << Third embodiment >>
A third embodiment of the present invention will be described below with reference to the drawings.

本実施例は電力計測装置２の状態監視に関して実施したものであり、装置構成は前述の電力計測装置２の構成と同じでありその計測結果の一例を図６に示す。図６は前述した通りドリルを用いた切削加工機による加工時の電力値推移を示している。   The present embodiment is implemented with respect to the state monitoring of the power measuring device 2, and the device configuration is the same as the configuration of the power measuring device 2 described above, and an example of the measurement result is shown in FIG. FIG. 6 shows the power value transition at the time of machining by the cutting machine using the drill as described above.

ここで、図６の４ａ点はＺ軸起動時、４ｂ点は主軸・Ｚ軸が動作しているときの電力値推移を示すものであり、加工品（ワーク）への加工作業時の電力値推移である。図６で示す電力値推移は、同機械加工機１の劣化・磨耗が特に発生していない状態を示すものであるが、同機械加工機１の刃具に劣化・磨耗等が生じた場合の同装置の電力値推移は、図７で示すような計測値変動が激しい、かつ平均電力値が大きな計測となると言われている。   Here, the point 4a in FIG. 6 indicates the transition of the power value when the Z-axis is activated, and the point 4b indicates the power value transition when the spindle / Z-axis is operating. It is a transition. The power value transition shown in FIG. 6 shows a state in which the machine tool 1 is not particularly deteriorated or worn. However, the power value transition is the same as when the blade of the machine machine 1 is deteriorated or worn. The power value transition of the apparatus is said to be a measurement in which the measured value fluctuation is large and the average power value is large as shown in FIG.

よって、本発明は加工作業時の電力値の平均電力値に少なくも２種類以上の閾値を設け、「注意警報」／「要求警報」として２段階の状態監視を行なうよう構成した。更に、本実施例においては主軸・Ｚ軸の稼動時（図６で示す４ｂ点）の電力値を用い機械加工機１の状態監視を行なうよう構成している。ここで本実施例に用いた電力値計測による機械加工機１の状態変化検出条件について説明しておく。   Therefore, in the present invention, at least two kinds of thresholds are provided in the average power value of the power value at the time of the machining operation, and the two-stage state monitoring is performed as “caution alarm” / “request alarm”. Furthermore, in the present embodiment, the state of the machine tool 1 is monitored using the power value during operation of the main shaft and the Z-axis (point 4b shown in FIG. 6). Here, the state change detection condition of the machining machine 1 by the power value measurement used in the present embodiment will be described.

本実施例においては、
（１）１回当たりの加工作業時の平均電力値による判定とし、「注意警報」判定に関しては「要求警報」時閾値の７０％値として設定している。
（２）加工作業開始一定時間t1後の瞬時電力値の一定値（閾値）以上の急変減少を判定条件とし、本状態検出時は「要求警報」を中央監視装置３に出力するよう設定した。 In this example,
(1) The determination is based on the average power value at the time of the machining operation per time, and the “caution alarm” determination is set as a 70% value of the “request alarm” threshold.
(2) A sudden change decrease that is equal to or greater than a constant value (threshold value) of the instantaneous power value after a predetermined time t1 when the machining operation is started is set as a determination condition, and a “request alarm” is set to be output to the central monitoring device 3 when this state is detected.

ここで、急変減少検出については所定時限を連続して減少していることで急変減少と条件付けしている。本実施例における所定時限とはサンプリングデータが連続１０ポイントとし、サンプリングデータが１０ポイント以上連続して減少した場合に条件確立とした。   Here, the sudden change decrease detection is conditioned as a sudden change decrease by continuously decreasing the predetermined time period. In this embodiment, the predetermined time is defined as the establishment of conditions when the sampling data is 10 points continuously and the sampling data continuously decreases by 10 points or more.

尚、本電力値計測のサンプリング時限は１００ｍＳとし、またそれぞれの閾値に関しては機械加工機１の加工種類及び同加工機１の実績データより閾値を定めるものとした。ここで本実施例においては特に記載していないが、状態監視に必要な閾値条件を設定するため、本電力計測装置２に閾値設定が行なえる閾値設定手段を設ける構成とするこてで、状態監視精度の向上を更に図ることも可能となる。   Note that the sampling time limit for this power value measurement is 100 mS, and the threshold values are determined from the machining type of the machine 1 and the actual data of the machine 1 with respect to each threshold. Here, although not specifically described in the present embodiment, in order to set a threshold condition necessary for state monitoring, the power measuring device 2 is provided with a threshold setting unit capable of performing threshold setting, thereby It is also possible to further improve the monitoring accuracy.

以上の構成により、本発明の機械加工機電力監視装置としての電力計測手段を構成し、よって、前述までの機械加工機電力監視装置及び同装置システムとしての効果を有した装置・システムを構成することが可能となる。   With the above configuration, the power measuring means as the machining machine power monitoring apparatus of the present invention is configured, and thus the machining machine power monitoring apparatus and the apparatus / system having the effects as the apparatus system described above are configured. It becomes possible.

《第４の実施例》
以下、本発明の第４の実施例について図面を用いて説明する。図８は電力計測装置６の構成を示すものであり、第１，２，３の実施例に用いた電力計測装置２に対し変流器２１と変圧器２２からなる変成器部２７を複数構成し、同一機械加工機１内の複数箇所の電力供給路の電力値計測を可能とする構成としたものであり、その機能・動作については電力計測装置２と同じであり省略する。 << 4th Example >>
The fourth embodiment of the present invention will be described below with reference to the drawings. FIG. 8 shows the configuration of the power measuring device 6. The power measuring device 2 used in the first, second, and third embodiments has a plurality of transformer sections 27 including a current transformer 21 and a transformer 22. In addition, the power value measurement of a plurality of power supply paths in the same machining machine 1 is possible, and the functions and operations thereof are the same as those of the power measurement device 2 and are omitted.

本構成による目的は、電力供給路の主幹計測の場合は、状態監視に必要な制御電力以外の電力を含んだ電力値計測のため、状態監視に必要な電力値要素の変動検出幅が小さく困難な場合もある。また機械加工機１が多軸制御による切削加工機の場合、制御軸単位による計測を可能とし詳細な計測が可能となり、よってより詳細な電力値計測が可能となるため、状態監視判定の精度向上を計ることが可能となる。   The purpose of this configuration is to measure the power value that includes power other than the control power required for state monitoring in the case of main measurement of the power supply path, so the fluctuation detection width of the power value element necessary for state monitoring is small and difficult. In some cases. In addition, when the machine tool 1 is a multi-axis control cutting machine, it is possible to measure in units of control axes and to make detailed measurements, thus making it possible to measure more detailed power values, thus improving the accuracy of state monitoring determination. Can be measured.

なお、本発明は、切削加工機の他、モータを用いる工業用ロボットや、レーザ加工機等の機械加工機にも応用可能である。   The present invention can be applied not only to a cutting machine but also to an industrial robot using a motor and a machining machine such as a laser machine.

本発明は、モータ等により構成される、電動機器の異常を電力値等により診断する設備診断装置にに応用可能な技術である。   The present invention is a technique that can be applied to an equipment diagnosis apparatus that is configured by a motor or the like and diagnoses an abnormality of an electric device based on a power value or the like.

本発明の実施の形態に用いた電力計測装置の構成図The block diagram of the electric power measuring apparatus used for embodiment of this invention 本発明の実施の形態に用いた中央監視装置の構成図Configuration diagram of the central monitoring device used in the embodiment of the present invention 本発明の実施の形態に用いた機械加工機電力監視装置の構成図Configuration diagram of machine power monitoring device used in the embodiment of the present invention 本発明の実施の形態に用いた機械加工機電力監視装置システムの構成図The block diagram of the machine power monitoring device system used in the embodiment of the present invention 本発明の実施の形態に用いた表示部のスケルトン表示部の構成図The block diagram of the skeleton display part of the display part used for embodiment of this invention 本発明の機械加工機電力監視装置に用いた電力計測装置による機械加工機稼動時の正常時の電力値推移図Power value transition diagram during normal operation when the machine is operated by the power measuring device used in the machine power monitoring device of the present invention 本発明の機械加工機電力監視装置に用いた電力計測装置による機械加工機稼動時の状態の変化があることを示す電力値推移図The power value transition diagram showing that there is a change in the state when the machining machine is operated by the power measuring device used in the machine power monitoring apparatus of the present invention. 本発明の別の実施の形態に用いた電力計測装置の構成図The block diagram of the electric power measurement apparatus used for another embodiment of this invention

符号の説明Explanation of symbols

１ 機械加工機
２ 電力計測装置
２ａ 電力供給路
２ｂ 機械加工機 電動源
３ 中央監視装置
３ａ 通信ケーブル
５ａ 機械加工機(スケルトン表示による)
５ｂ ネットワーク網(スケルトン表示による)
２０ 変成器部
２１ 変流器
２２ 変圧器
２３ 電力値演算部
２４ 状態監視部
２５ 送受信部(電力計測装置構成ブロック)
２６ アドレス部
３１ 送受信部(中央監視装置構成ブロック)
３２ 演算部
３３ 表示部
３４ メモリ部
２ｂ１ 機械加工機主軸電源
２ｂ２ 機械加工機Ｘ軸電源
２ｂ３ 機械加工機Ｙ軸電源
２ｂ４ 機械加工機Ｚ軸電源
３３ａ ＬＥＤ
３３ｂ 警報機 DESCRIPTION OF SYMBOLS 1 Machine tool 2 Power measuring device 2a Power supply path 2b Machine tool Electric power source 3 Central monitoring device 3a Communication cable 5a Machine tool (by skeleton display)
5b Network network (by skeleton display)
DESCRIPTION OF SYMBOLS 20 Transformer part 21 Current transformer 22 Transformer 23 Electric power value calculating part 24 State monitoring part 25 Transmission / reception part (power measurement apparatus structural block)
26 Address part 31 Transmission / reception part (Central monitoring device configuration block)
32 arithmetic unit 33 display unit 34 memory unit 2b1 machine tool spindle power supply 2b2 machine tool X axis power supply 2b3 machine tool Y axis power supply 2b4 machine tool Z axis power supply 33a LED
33b Alarm

Claims (12)

機械加工機に電力供給する電路での電圧および電流を計測する計測手段と前記計測手段で求めた前記電路の電圧および電流から前記機械加工機の電力値を求める電力計測手段と前記電力計測手段により計測した電力値から機械加工機の状態を監視する監視手段を有した電力計測装置と、前記電力計測装置で求めた前記機械加工機の電力値もしくは状態監視データを収集しかつ収集データをメモリするメモリ部と同メモリ部のデータから最適値を前記電力計測装置に送信する機能を有する中央監視装置とを備えた機械加工機電力監視装置。 A measuring means for measuring a voltage and a current in an electric path for supplying electric power to the machining machine; a power measuring means for obtaining a power value of the machining machine from the voltage and current of the electric circuit obtained by the measuring means; and the power measuring means. A power measuring device having monitoring means for monitoring the state of the machining machine from the measured power value, and collecting the power value or state monitoring data of the machining machine obtained by the power measuring device and storing the collected data A machine power monitoring device comprising: a memory unit; and a central monitoring device having a function of transmitting an optimum value from data in the memory unit to the power measuring device. 機械加工機内部にて分岐された各電力供給路毎の電圧および電流を計測する計測手段と前記計測手段で求めた同各電力供給路毎の電圧および電流から前記各電力供給路毎の電力値を求める電力計測手段と前記電力計測手段により計測した各電力供給路毎の電力値から機械加工機の状態を監視する監視手段を有した電力計測装置と、前記電力計測装置で求めた前記機械加工機の電力値もしくは状態監視データを収集しかつ収集データをメモリするメモリ部と同メモリ部のデータから最適値を前記電力計測装置に送信する機能を有する中央監視装置とを備えた機械加工機電力監視装置。 Measuring means for measuring the voltage and current for each power supply path branched inside the machining machine, and the power value for each power supply path from the voltage and current for each power supply path determined by the measuring means A power measuring device having a power measuring means for determining the state of the machine tool from a power value for each power supply path measured by the power measuring means, and the machining obtained by the power measuring device Machine power comprising: a memory unit for collecting power value or state monitoring data of a machine and storing the collected data; and a central monitoring device having a function of transmitting an optimum value from the data in the memory unit to the power measuring device Monitoring device. 前記電力計測装置で求めた各電力値もしくは状態監視データをネットワーク網を介してデータ収集する中央監視装置とを備えた請求項１または２記載の機械加工機電力監視装置。 The machine power monitoring device according to claim 1, further comprising a central monitoring device that collects data of each power value or state monitoring data obtained by the power measuring device via a network. 機械加工機は、切削加工機である請求項１または２記載の機械加工機電力監視装置。 The machine power monitoring device according to claim 1 or 2, wherein the machine is a cutting machine. 機械加工機は、ドリル刃を用いて切削する請求項３記載の機械加工機電力監視装置。 The machine power monitoring apparatus according to claim 3, wherein the machining machine performs cutting using a drill blade. 複数台の前記電力計測装置と監視装置から構成した機械加工機電力監視装置システム。 A machine tool power monitoring system comprising a plurality of power measuring devices and monitoring devices. 中央監視装置は、収集した機械加工機の電力値もしくは状態監視データから機械加工機の状態変化の有無を判定表示する判定表示手段を有する請求項４及び請求項６記載の機械加工機電力監視装置及び同装置システム。 7. The machine power monitoring apparatus according to claim 4, wherein the central monitoring device has a determination display means for determining whether or not there is a change in the state of the machine from the collected power value or state monitoring data of the machine. And the same device system. 判定表示手段はＬＥＤ表示出力もしくは警報出力とした請求項７に係わる機械加工機電力監視装置及び同装置システム。 The machine power monitoring apparatus and apparatus system according to claim 7, wherein the determination display means is an LED display output or an alarm output. 表示出力手段はネットワーク網にてデータ収集される各機械加工機毎及びそのネットワーク網とを簡易的・ブロック的に表示する構成とした請求項６記載の機械加工機電力監視装置システム。 7. The machine power monitoring apparatus system according to claim 6, wherein the display output means is configured to display each machine tool for which data is collected on the network network and the network network in a simple and block manner. 中央監視装置は、前記判定表示手段の結果より該当する設備に対し制御信号かつ設定値情報を出力するよう構成した請求項６及び請求項７記載の機械加工機電力監視装置及び同装置システム。 8. The machine power monitoring apparatus and apparatus system according to claim 6 and 7, wherein the central monitoring apparatus is configured to output a control signal and set value information to the corresponding equipment based on a result of the determination display means. 表示出力手段には、少なくも複数種類の表示内容を持たせた請求項４及び請求項６記載の機械加工機電力監視装置及び同装置システム。 7. The machine power monitoring apparatus and apparatus system according to claim 4, wherein the display output means has at least a plurality of types of display contents. 判定手段は、所定時間内における機械加工機の電力値が所定値以上であればドリル刃の交換もしくは補修が必要であると判定する請求項５記載の機械加工機電力監視装置。 6. The machine power monitoring apparatus according to claim 5, wherein the determination means determines that the drill blade needs to be replaced or repaired if the power value of the machining machine within a predetermined time is equal to or greater than a predetermined value.
JP2004189184A 2004-06-28 2004-06-28 Electric power monitoring system for machining apparatus Pending JP2006011897A (en)

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