JP6718263B2 - Constant temperature water supply method - Google Patents

Constant temperature water supply method Download PDF

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JP6718263B2
JP6718263B2 JP2016044290A JP2016044290A JP6718263B2 JP 6718263 B2 JP6718263 B2 JP 6718263B2 JP 2016044290 A JP2016044290 A JP 2016044290A JP 2016044290 A JP2016044290 A JP 2016044290A JP 6718263 B2 JP6718263 B2 JP 6718263B2
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water
delivery pump
storage tank
pressure
water supply
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JP2017161119A (en
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正臣 松本
正臣 松本
優 斉藤
優 斉藤
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Disco Corp
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Disco Corp
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Priority to CN201710122755.2A priority patent/CN107166734B/en
Priority to KR1020170028244A priority patent/KR102224606B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • 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
    • 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
    • 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
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices

Description

本発明は、所定温度の水を加工装置に供給する定温水供給方法及び定温水供給装置に関する。 The present invention relates to a constant temperature water supply method and a constant temperature water supply device for supplying water having a predetermined temperature to a processing device.

一般に、研削装置や切削装置等の加工装置に供給される加工水やスピンドル冷却水等の水の温度は、一定温度に管理されている。これは、加工装置に供給される水の温度によって機械部品が熱膨張または熱収縮して加工精度が悪化したり、例えばスピンドルのかじりのように部品同士が接触して加工装置自体が損傷してしまったりするのを防止するためである。 Generally, the temperature of water such as machining water or spindle cooling water supplied to a machining device such as a grinding device or a cutting device is controlled to a constant temperature. This is because the machining accuracy deteriorates due to the thermal expansion or contraction of mechanical parts due to the temperature of the water supplied to the processing equipment, or the processing equipment itself is damaged due to the parts coming into contact with each other like the galling of a spindle. This is to prevent it from getting lost.

加工装置に供給される水を一定温度に保つためには、例えば、定温水供給装置が広く利用されている。定温水供給装置は、水供給源から供給された水を貯留する貯留タンクと、貯留タンクから加工装置へ水を送出する送出ポンプと、貯留タンクから送出された水の圧力を検出する圧力検出ユニットと、貯留タンクから加工装置に至るまでに水を所定温度に調整する温度調整ユニットとを少なくとも備える。このように構成される定温水供給装置では、送出ポンプによって貯留タンクから水を吸い出して、金属や樹脂で形成された配管を通じて加工装置に向けて水を送出することができる（例えば、下記の特許文献１を参照）。 In order to keep the water supplied to the processing device at a constant temperature, for example, a constant temperature water supply device is widely used. The constant temperature water supply device includes a storage tank that stores water supplied from a water supply source, a delivery pump that delivers water from the storage tank to the processing device, and a pressure detection unit that detects the pressure of the water delivered from the storage tank. And a temperature adjusting unit for adjusting the water to a predetermined temperature from the storage tank to the processing device. In the constant temperature water supply device configured as described above, water can be sucked from the storage tank by the delivery pump, and the water can be delivered to the processing device through the pipe formed of metal or resin (for example, the following patents: Reference 1).

特開２００７−１２７３４３号公報JP-A-2007-127343

しかし、空の貯留タンクに水を貯留し、送出ポンプにより貯留タンクから水を吸い出して送出する際に、送出ポンプの内部や配管中に気体が混入していると、送出ポンプを作動させても送出ポンプが空回りして水を送出することができないという問題がある。送出ポンプで水を送出できていないことは、上記の圧力検出ユニットで検出される圧力が所定値に達しないことで判断できる。従来においては、暫く送出ポンプを連続稼働させておく間に送出ポンプや配管中の気体が貯留タンクなどに移動することもあるため、圧力検出ユニットで検出される圧力が所定値に達していない状態でも暫く送出ポンプを稼働させていた。そして、どの程度送出ポンプを稼働させるかは作業者の勘に依存していたため、場合によっては定温水供給装置を用いて加工装置に水を供給するまでに相当の時間を要しており、非常に非効率的であった。 However, when water is stored in an empty storage tank, and when the delivery pump sucks out water from the storage tank and delivers it, if gas is mixed in the delivery pump or in the piping, the delivery pump may be operated. There is a problem that the delivery pump does not rotate and cannot deliver water. The fact that water cannot be delivered by the delivery pump can be determined by the fact that the pressure detected by the pressure detection unit does not reach a predetermined value. Conventionally, the pressure detected by the pressure detection unit has not reached a predetermined value because the gas in the delivery pump or piping may move to the storage tank etc. while the delivery pump is continuously operating for a while. But the delivery pump was running for a while. Since how much the delivery pump is operated depends on the intuition of the operator, it takes a considerable time to supply water to the processing device using the constant temperature water supply device in some cases. Was inefficient.

本発明は、上記の事情にかんがみてなされたものであり、所定温度の水を加工装置に効率よく供給できるようにすることを目的としている。 The present invention has been made in view of the above circumstances, and it is an object of the present invention to efficiently supply water having a predetermined temperature to a processing apparatus.

本発明は、水供給源から供給された水を貯留する貯留タンクと、該貯留タンクから該加工装置へ水を送出する送出ポンプと、該貯留タンクから送出された水の圧力を検出する圧力検出手段と、該貯留タンクから加工装置に至る流路上の該送出ポンプよりも下流に配設され水を所定温度に調整する温度調整手段と、を備えた定温水供給装置で所定温度の水を該加工装置に供給する定温水供給方法であって、該水供給源から該貯留タンクに水を供給する水供給ステップと、該貯留タンク内に溜められた水の水位を検出する水位検出ステップと、該貯留タンク内の水位が所定の下限水位を下回っている場合に、該送出ポンプのＯＮとＯＦＦとを交互に繰り返すポンプＯＮ／ＯＦＦステップと、該ポンプＯＮ／ＯＦＦステップを実施した後、該貯留タンク内の水量が該下限水位を上回っている場合に、該送出ポンプで該貯留タンクから水を送出する送出ステップと、該送出ステップで送出された水を該加工装置に至るまでに該温度調整手段で該所定温度に調整する温度調整ステップと、を備え、該送出ステップで該貯留タンクから送出された水の圧力を該圧力検出手段で検出する圧力検出ステップと、該圧力検出ステップで検出された圧力が所定値に達しない場合に、該送出ポンプの作動を一時停止させた後、再度該送出ポンプを作動させる送出ポンプリトライステップと、をさらに備え、該流路中に混入した気体を該流路から除去する。 The present invention relates to a storage tank for storing water supplied from a water supply source, a delivery pump for delivering water from the storage tank to the processing device, and a pressure detection for detecting the pressure of water delivered from the storage tank. Means and a temperature adjusting means for adjusting the water to a predetermined temperature downstream of the delivery pump on the flow path from the storage tank to the processing device, and the constant temperature water supply device is provided with the constant temperature water supply device. A constant temperature water supply method for supplying to a processing device, comprising a water supply step of supplying water from the water supply source to the storage tank, and a water level detection step of detecting a water level of water stored in the storage tank, When the water level in the storage tank is lower than a predetermined lower limit water level, the pump ON/OFF step for alternately repeating ON and OFF of the delivery pump and the pump ON/OFF step are performed, and then the storage A sending step of sending water from the storage tank by the sending pump when the amount of water in the tank exceeds the lower limit water level, and the temperature adjustment of the water sent in the sending step to the processing device. A temperature adjusting step of adjusting the temperature to the predetermined temperature by means, and a pressure detecting step of detecting the pressure of water sent from the storage tank by the pressure detecting means in the sending step, and a pressure detecting step detected by the pressure detecting step. If the pressure does not reach the predetermined value, the pump further comprises a delivery pump retry step of reactivating the delivery pump after temporarily stopping the operation of the delivery pump. Remove from flow path.

また、上記送出ポンプリトライステップを実施した後、該圧力検出手段で検出された水の圧力が該所定値に達しない場合に、警告を発する警告発信ステップを更に備えてもよい。 Further, after performing the delivery pump retry step, a warning issuing step may be further provided for issuing a warning when the pressure of the water detected by the pressure detecting means does not reach the predetermined value.

本発明の定温水供給方法は、水供給源から貯留タンクに水を供給する水供給ステップと、水供給ステップを実施した後、送出ポンプで貯留タンクから水を送出する送出ステップと、送出ステップで送出された水を加工装置に至るまでに温度調整手段で所定温度に調整する温度調整ステップと、備え、送出ステップで貯留タンクから送出された水の圧力を圧力検出手段で検出する圧力検出ステップと、圧力検出ステップで検出された圧力が所定値に達しない場合に、送出ポンプの作動を一時停止させた後、再度送出ポンプを作動させる送出ポンプリトライステップとをさらに備えるため、送出ポンプ中や流路中に混入したエアーを除去してから、送出ポンプを再稼働させることできる。これにより、過度に送出ポンプを稼働させることがなく、定温水供給装置で加工装置に水を供給するまでに相当の時間を要することもない。よって、従来に比べて効率よく所定温度の水を加工装置に供給することができる。 The constant temperature water supply method of the present invention comprises a water supply step of supplying water from a water supply source to a storage tank, a delivery step of delivering water from the storage tank by a delivery pump after performing the water supply step, and a delivery step. A temperature adjusting step of adjusting the delivered water to a predetermined temperature by the temperature adjusting means before reaching the processing device; and a pressure detecting step of detecting the pressure of the water delivered from the storage tank in the sending step by the pressure detecting means. , If the pressure detected in the pressure detection step does not reach a predetermined value, it further comprises a delivery pump retry step of temporarily operating the delivery pump and then operating the delivery pump again. It is possible to restart the delivery pump after removing the air mixed in the road. Accordingly, the delivery pump is not excessively operated, and it does not take a considerable time until the constant temperature water supply device supplies water to the processing device. Therefore, it is possible to efficiently supply the water having the predetermined temperature to the processing device as compared with the related art.

また、上記送出ポンプリトライステップを実施した後、圧力検出手段で検出された水の圧力が所定値に達しない場合に、警告を発する警告発信ステップを更に備えるため、水の圧力が所定値に達しない原因がエアーの混入ではない場合においても、早期に異常を感知することができる。 Further, after the delivery pump retry step is performed, when the water pressure detected by the pressure detecting means does not reach the predetermined value, a warning sending step is further provided to issue a warning, so that the water pressure reaches the predetermined value. Even if the cause of the failure is not the mixture of air, the abnormality can be detected early.

本発明の定温水供給装置は、制御手段が、圧力検手段で検出された圧力の許容下限値を記憶する許容下限値記憶部と、圧力検出手段で検出された圧力が許容下限値に達するか否かを判断する圧力判定部と、圧力判定部において圧力検出手段で検出された圧力が許容下限値に達しないと判断された場合に、送出ポンプの作動を一時停止した後、再度送出ポンプを作動するリトライ動作を送出ポンプに実施させるリトライ動作制御部とを備えるため、ポンプ中や流路中に混入したエアーを除去してから、送出ポンプを再稼働させることできる。よって、上記同様に、過度に送出ポンプを稼働させることがなく、定温水供給装置で加工装置に水を供給するまでに相当の時間を要することもない。したがって、従来に比べて効率よく所定温度の水を加工装置に供給することができる。 In the constant temperature water supply device of the present invention, the control means stores the allowable lower limit value storage section for storing the allowable lower limit value of the pressure detected by the pressure detecting means, and whether the pressure detected by the pressure detecting means reaches the allowable lower limit value. If the pressure determination unit that determines whether or not the pressure detected by the pressure detection unit in the pressure determination unit does not reach the allowable lower limit value, the operation of the delivery pump is temporarily stopped, and then the delivery pump is restarted. Since the delivery pump is provided with a retry operation control unit that causes the delivery pump to perform a retry operation that operates, it is possible to restart the delivery pump after removing the air mixed in the pump and the flow path. Therefore, similarly to the above, the delivery pump is not excessively operated, and it does not take a considerable time until the constant temperature water supply device supplies water to the processing device. Therefore, it is possible to efficiently supply the water having the predetermined temperature to the processing apparatus as compared with the conventional case.

また、上記制御手段が、上記リトライ動作制御部で上記送出ポンプに上記リトライ動作を実施させた後、上記圧力検出手段で検出された圧力が上記許容下限値に達するか否かを再度判断する圧力再判定部と、圧力再判定部において圧力検出手段で検出された圧力が許
容下限値に達しないと判断された場合に、警告を発する警告発信部とを更に備えるため、水の圧力が許容下限値に達しない原因がエアーの混入ではない場合においても、早期に異常を感知することができる。 Further, the control means causes the retry operation control unit to cause the delivery pump to perform the retry operation, and then determines again whether or not the pressure detected by the pressure detection means reaches the allowable lower limit value. Since the re-determination unit and the warning transmission unit that issues a warning when the pressure detected by the pressure detection unit in the pressure re-determination unit does not reach the lower limit value, the water pressure is lower than the lower limit value. Even when the cause of not reaching the value is not the mixing of air, it is possible to detect the abnormality early.

定温水供給装置及び加工装置の構成を示すブロック図である。It is a block diagram which shows the structure of a constant temperature water supply apparatus and a processing apparatus. 定温水供給方法の手順を示すフローチャートである。It is a flowchart which shows the procedure of the constant temperature water supply method.

１ 定温水供給装置
図１に示す定温水供給装置１は、例えば、被加工物に切削を施す切削ブレードが装着されるスピンドル２１を備える加工装置２０に所定温度の水を供給するための定温水供給装置の一例である。定温水供給装置１は、水供給源２から給水路７ａと給水路１５ａとに二分岐して所定温度の水を加工装置２０の所定の機構（例えば、切削ブレードに加工水を供給する加工水ノズル）やスピンドル２１にそれぞれ供給する構成となっている。加工装置２０は、定温水供給装置１に接続されており、定温水供給装置１から加工装置２０に供給される所定温度の水を用いながら、被加工物を切削加工することができる。 1 Constant Temperature Water Supply Device A constant temperature water supply device 1 shown in FIG. 1 is, for example, a constant temperature water for supplying water of a predetermined temperature to a processing device 20 including a spindle 21 equipped with a cutting blade for cutting a workpiece. It is an example of a supply device. The constant temperature water supply device 1 bifurcates a water supply source 2 into a water supply passage 7a and a water supply passage 15a to supply water having a predetermined temperature to a predetermined mechanism of the processing device 20 (for example, processing water which supplies the processing water to a cutting blade). Nozzles) and the spindle 21 are respectively supplied. The processing device 20 is connected to the constant temperature water supply device 1, and can cut a workpiece while using water at a predetermined temperature supplied from the constant temperature water supply device 1 to the processing device 20.

定温水供給装置１は、水供給源２から供給される水を貯留する第１貯留タンク３と、第１貯留タンク３から加工装置２０へ水を送出する第１送出ポンプ４と、第１貯留タンク３から送出された水の圧力を検出する第１圧力検出手段５と、第１貯留タンク３から加工装置２０に至る第１流路７上の第１送出ポンプ４よりも下流に配設され水を所定温度に調整する温度調整手段６と、第１送出ポンプ４の作動を制御する制御手段９とを備える。第１流路７は、例えば、金属や樹脂で形成された配管である。温度調整手段６と加工装置２０との間の第１流路７には、水に混入した異物を除去するための第１フィルタ８が配設されている。 The constant temperature water supply device 1 includes a first storage tank 3 for storing water supplied from a water supply source 2, a first delivery pump 4 for delivering water from the first storage tank 3 to the processing device 20, and a first storage The first pressure detection means 5 for detecting the pressure of the water delivered from the tank 3 and the first delivery pump 4 on the first flow path 7 extending from the first storage tank 3 to the processing device 20 are disposed downstream of the first delivery pump 4. The temperature adjusting means 6 for adjusting the water to a predetermined temperature and the control means 9 for controlling the operation of the first delivery pump 4 are provided. The first flow path 7 is, for example, a pipe made of metal or resin. In the first flow path 7 between the temperature adjusting means 6 and the processing device 20, a first filter 8 for removing foreign matter mixed in water is arranged.

また、定温水供給装置１は、水供給源２からスピンドル２１に供給される水を貯留する第２貯留タンク１１と、第２貯留タンク１１からスピンドル２１へ水を送出する第２送出ポンプ１２と、第２貯留タンク１１から送出された水の圧力を検出する第２圧力検出手段１３と、第２貯留タンク１１からスピンドル２１に至る第２流路１５上の第２送出ポンプ１２よりも下流に配設され水を所定温度に冷却するチラーユニット１４とを備える。制御手段９は、第１送出ポンプ４のほか、第２送出ポンプ１２の作動も制御することができる。第２流路１５は、第１流路７と同様の構成となっている。チラーユニット１４と加工装置２０との間の第２流路１５には、水に混入した異物を除去するための第２フィルタ１６が配設されている。 Further, the constant temperature water supply device 1 includes a second storage tank 11 that stores water supplied from the water supply source 2 to the spindle 21, and a second delivery pump 12 that delivers water from the second storage tank 11 to the spindle 21. , Downstream of the second pressure detecting means 13 for detecting the pressure of the water delivered from the second storage tank 11 and the second delivery pump 12 on the second flow path 15 extending from the second storage tank 11 to the spindle 21. And a chiller unit 14 for cooling water to a predetermined temperature. The control means 9 can control the operation of the second delivery pump 12 as well as the first delivery pump 4. The second flow path 15 has the same configuration as the first flow path 7. In the second flow path 15 between the chiller unit 14 and the processing device 20, a second filter 16 for removing foreign matter mixed in water is arranged.

第１貯留タンク３及び第２貯留タンク１１は、所定量の水を貯留できる容器であって、その内部には、例えば、容器に溜められた水の水位を検出するセンサが配設されている。センサは、特に限定されるものではなく、液体の圧力で水位を検出する圧力式センサでもよいし、超音波によって液面の高さを測定して水位を検出する超音波式センサでもよい。第１送出ポンプ４及び第２送出ポンプ１２の構成は、特に限定されない。 The first storage tank 3 and the second storage tank 11 are containers that can store a predetermined amount of water, and inside thereof, for example, a sensor that detects the water level of the water stored in the containers is provided. .. The sensor is not particularly limited, and may be a pressure sensor that detects the water level by the pressure of the liquid, or an ultrasonic sensor that measures the height of the liquid surface by ultrasonic waves and detects the water level. The configurations of the first delivery pump 4 and the second delivery pump 12 are not particularly limited.

温度調整手段６は、第１流路７を流れる水を冷却するためのチラーユニット６０と、第１流路７を流れる水を加熱するためのヒーター６１と、第１流路７を流れる水の温度を測定する図示しない測定部とを少なくとも備える。温度調整手段６では、第１貯留タンク３から加工装置２０に至る第１流路７上の水の温度を測定部で測定しつつ、チラーユニット６０またはヒーター６１を駆動させて、水を所定温度に温度調整することができる。なお、本実施形態に示す温度調整手段６は、チラーユニット６０及びヒーター６１を備えているが、この構成に限られず、水供給源２の水の温度に応じてチラーユニット６０またはヒ
ーター６１のどちらか一方で構成してよい。第２流路１５には、ヒーターを配設せず、チラーユニット１４のみが配設され、第２流路１５上を流れる水を冷却する構成となっている。 The temperature adjusting means 6 includes a chiller unit 60 for cooling the water flowing through the first flow path 7, a heater 61 for heating the water flowing through the first flow path 7, and a water flowing through the first flow path 7. At least a measuring unit (not shown) for measuring the temperature is provided. In the temperature adjusting means 6, the chiller unit 60 or the heater 61 is driven to measure the temperature of the water on the first flow path 7 from the first storage tank 3 to the processing device 20 by the measuring unit to bring the water to a predetermined temperature. The temperature can be adjusted. The temperature adjusting means 6 according to the present embodiment includes the chiller unit 60 and the heater 61, but the present invention is not limited to this configuration, and either the chiller unit 60 or the heater 61 may be used depending on the temperature of the water of the water supply source 2. It may be configured on the other hand. No heater is provided in the second flow path 15, but only the chiller unit 14 is provided, and the water flowing in the second flow path 15 is cooled.

制御手段９は、第１圧力検出手段５，第２圧力検出手段１３で検出される水の圧力の許容下限値を記億する許容下限値記億部９０と、第１圧力検出手段５，第２圧力検出手段１３で検出されたそれぞれの水の圧力が許容下限値に達するか否かを個別に判断する圧力判定部９１と、圧力判定部９１において第１圧力検出手段５，第２圧力検出手段１３で検出された水の圧力のいずれか一方または双方が許容下限値に達しないと判断された場合に、対応する第１送出ポンプ４または第２送出ポンプ１２の作動を一時停止させた後、再度第１送出ポンプ４または第２送出ポンプ１２を作動させるリトライ動作を第１送出ポンプ４または第２送出ポンプ１２に実施させるリトライ動作制御部９２とを備える。許容下限値とは、第１送出ポンプ４，第２送出ポンプ１２が動作不良を起こさない程度の水の圧力のしきい値を意味する。 The control means 9 includes an allowable lower limit value storage section 90 for storing an allowable lower limit value of the water pressure detected by the first pressure detecting means 5 and the second pressure detecting means 13, and the first pressure detecting means 5, 2 a pressure determination unit 91 that individually determines whether or not the pressure of each water detected by the pressure detection unit 13 reaches an allowable lower limit value, and the first pressure detection unit 5 and the second pressure detection unit in the pressure determination unit 91. After suspending the operation of the corresponding first delivery pump 4 or second delivery pump 12 when it is determined that either one or both of the water pressures detected by the means 13 does not reach the allowable lower limit value. And a retry operation control unit 92 that causes the first delivery pump 4 or the second delivery pump 12 to perform a retry operation to operate the first delivery pump 4 or the second delivery pump 12 again. The allowable lower limit value means a threshold value of the pressure of water at which the first delivery pump 4 and the second delivery pump 12 do not malfunction.

ここで、圧力判定部９１が、第１圧力検出手段５で検出された圧力が許容下限値に達しないと判断した場合は、第１送出ポンプ４または第１流路７に気体（エアー）が許容量以上混入した状態であると確認できる。また、圧力判定部９１が、第２圧力検出手段１３で検出された圧力が許容下限値に達しないと判断した場合は、第２送出ポンプ１２または第２流路１５の内部に気体（エアー）が許容量以上混入した状態であると確認できる。そして、この場合は、リトライ動作制御部９２が、第１送出ポンプ４または第２送出ポンプ１２の作動を一時停止するように制御することで、第１貯留タンク３または第２貯留タンク１１側や加工装置２０側へエアーを移動させ、送出ポンプ中や流路中に混入したエアーを除去してから、第１送出ポンプ４または第２送出ポンプ１２に対してリトライ動作を実施させる制御を行う。 Here, when the pressure determination unit 91 determines that the pressure detected by the first pressure detection unit 5 does not reach the allowable lower limit value, gas (air) is present in the first delivery pump 4 or the first flow path 7. It can be confirmed that it is in a mixed state of more than the allowable amount. Further, when the pressure determination unit 91 determines that the pressure detected by the second pressure detection unit 13 does not reach the allowable lower limit value, gas (air) is present inside the second delivery pump 12 or the second flow path 15. Can be confirmed to be in a mixed state exceeding the allowable amount. Then, in this case, the retry operation control unit 92 controls to temporarily stop the operation of the first delivery pump 4 or the second delivery pump 12, so that the first storage tank 3 or the second storage tank 11 side or After the air is moved to the processing device 20 side and the air mixed in the delivery pump or the flow path is removed, control is performed to cause the first delivery pump 4 or the second delivery pump 12 to perform a retry operation.

さらに、制御手段９は、リトライ動作制御部９２で第１送出ポンプ４または第２送出ポンプ１２にリトライ動作を実施させた後、第１圧力検出手段５または第２圧力検出手段１３で検出された水の圧力が許容下限値に達するか否かを再度判断する圧力再判定部９３と、圧力再判定部９３において第１圧力検出手段５または第２圧力検出手段１３で検出された水の圧力が許容下限値に達しないと判断された場合に、警告を発する警告発信部９４とを備える。 Further, the control unit 9 causes the retry operation control unit 92 to cause the first delivery pump 4 or the second delivery pump 12 to perform the retry operation, and then is detected by the first pressure detection unit 5 or the second pressure detection unit 13. The pressure re-determination unit 93 that determines again whether or not the water pressure reaches the allowable lower limit value, and the water pressure detected by the first pressure detection unit 5 or the second pressure detection unit 13 in the pressure re-determination unit 93 And a warning transmission unit 94 that issues a warning when it is determined that the lower limit value is not reached.

圧力再判定部９３では、圧力判定部９１と同様に、第１圧力検出手段５で検出された圧力が許容下限値に達しないと判断した場合は、リトライ動作を実施したにもかかわらず未だ第１送出ポンプ４または第１流路７に気体（エアー）が許容量以上混入した状態であると想定される。もしくは、リトライ動作を実施した後の圧力が許容下限値に達しない他の原因として、気体（エアー）の混入以外、例えば第１送出ポンプ４の故障等にあると想定される。また、圧力再判定部９３が、第２圧力検出手段１３で検出された圧力が許容下限値に達しないと判断した場合は、リトライ動作を実施したにもかかわらず未だ第２送出ポンプ１２または第２流路１５の内部に気体（エアー）が許容量以上混入した状態であると想定される。もしくは、リトライ動作を実施した後の圧力が許容下限値に達しない他の原因として、気体（エアー）の混入以外、例えば第２送出ポンプ１２の故障等にあると想定される。そして、圧力再判定部９３の判定結果を受けた警告発信部９４が警告発信手段１０に対して所定の警告を行うように信号を発信する。警告発信手段１０は、例えばスピーカーを有しアラーム音で警告する構成でもよいし、例えば表示モニタを有し文字や図形等の表示で警告する構成でもよい。 Similar to the pressure determination unit 91, when the pressure re-determination unit 93 determines that the pressure detected by the first pressure detection unit 5 does not reach the allowable lower limit value, the retry operation is still performed but It is assumed that gas (air) is mixed in the 1 delivery pump 4 or the first flow path 7 in an amount equal to or more than the allowable amount. Alternatively, it is assumed that the other cause of the pressure not reaching the allowable lower limit value after performing the retry operation is, for example, a failure of the first delivery pump 4 other than the mixing of gas (air). Further, when the pressure re-determination unit 93 determines that the pressure detected by the second pressure detection unit 13 does not reach the allowable lower limit value, the second delivery pump 12 or the second delivery pump 12 or It is assumed that gas (air) is mixed into the interior of the two flow paths 15 in an amount equal to or more than the allowable amount. Alternatively, it is assumed that the other cause of the pressure not reaching the allowable lower limit value after performing the retry operation is, for example, a failure of the second delivery pump 12 other than the mixing of gas (air). Then, the warning transmitting unit 94 that has received the determination result of the pressure re-determining unit 93 transmits a signal to the warning transmitting unit 10 so as to issue a predetermined warning. The warning transmission means 10 may be configured to have, for example, a speaker to warn with an alarm sound, or may be configured to have, for example, a display monitor to warn by displaying characters or figures.

このように、本発明の定温水供給装置１では、制御手段９が、第１圧力検出手段５，第２圧力検出手段１３で検出された圧力の許容下限値を記憶する許容下限値記憶部９０と、
第１圧力検出手段５，第２圧力検出手段１３で検出された圧力が許容下限値に達するか否かを判断する圧力判定部９１と、圧力判定部９１で許容下限値に達しないと判断された場合に、第１送出ポンプ４，第２送出ポンプ１２の作動を一時停止した後、再度第１送出ポンプ４，第２送出ポンプ１２を作動させるリトライ動作を第１送出ポンプ４，第２送出ポンプ１２に実施させるリトライ動作制御部９２とを備えるため、ポンプ中や流路中に混入したエアーを除去してから、第１送出ポンプ４，第２送出ポンプ１２を再稼働させることができる。よって、過度に第１送出ポンプ４，第２送出ポンプ１２を稼働させることがなく、定温水供給装置１で加工装置２０に水を供給するまでに相当の時間を要することもなく、従来に比べて効率よく所定温度の水を加工装置２０に供給することができる。
また、制御手段９が警告発信部９４を備えるため、水の圧力が許容下限値に達しない原因がエアーの混入ではない場合においても、早期に異常を感知することができる。 As described above, in the constant temperature water supply device 1 of the present invention, the control unit 9 stores the allowable lower limit value storage unit 90 that stores the allowable lower limit value of the pressure detected by the first pressure detecting unit 5 and the second pressure detecting unit 13. When,
The pressure determination unit 91 that determines whether the pressure detected by the first pressure detection unit 5 and the second pressure detection unit 13 reaches the allowable lower limit value, and the pressure determination unit 91 determines that the pressure does not reach the allowable lower limit value. In this case, after the operation of the first delivery pump 4 and the second delivery pump 12 is temporarily stopped, the retry operation of operating the first delivery pump 4 and the second delivery pump 12 again is performed. Since the pump 12 is provided with the retry operation control unit 92, the first delivery pump 4 and the second delivery pump 12 can be restarted after the air mixed in the pump or the flow path is removed. Therefore, it is unnecessary to operate the first delivery pump 4 and the second delivery pump 12 excessively, and it does not take a considerable time to supply water to the processing device 20 by the constant temperature water supply device 1. Therefore, water having a predetermined temperature can be efficiently supplied to the processing device 20.
Further, since the control means 9 is provided with the warning transmission part 94, even when the cause of the pressure of the water not reaching the allowable lower limit value is not the mixing of air, the abnormality can be detected early.

なお、本実施形態に示した定温水供給装置１では、水供給源２から二分岐させた給水路７ａ，１５ａを設けたが、給水路１５ａを設けずに、第１貯留タンク３から加工装置２０に向けて供給された水の一部をバルブによって第２貯留タンク１１に給水できるようにしてもよい。また、スピンドル２１を冷却する冷却水は、加工装置２０において循環利用してもよい。 In addition, in the constant temperature water supply device 1 according to the present embodiment, the water supply paths 7a and 15a that are branched from the water supply source 2 are provided, but the water supply path 15a is not provided, and the processing device is installed from the first storage tank 3 A part of the water supplied toward 20 may be supplied to the second storage tank 11 by a valve. Further, the cooling water for cooling the spindle 21 may be circulated and used in the processing device 20.

２ 定温水供給方法
次に、図１に示す定温水供給装置１を用いて、図２に示すフローチャートに沿って、所定温度の水を加工装置２０に供給する定温水供給方法について説明する。 2 Constant Temperature Water Supply Method Next, a constant temperature water supply method for supplying water of a predetermined temperature to the processing apparatus 20 using the constant temperature water supply apparatus 1 shown in FIG. 1 will be described along the flowchart shown in FIG.

（水供給ステップ）
水供給源２から第１貯留タンク３，第２貯留タンク１１に水を供給する（ステップＳ１）。具体的には、水供給源２から給水路７ａを通じて第１貯留タンク３へ給水するとともに、水供給源２から給水路１５ａを通じて第２貯留タンク１１へ給水する。水供給源２から送出される水としては、例えば、純水や市水（水道水）を用いることができる。 (Water supply step)
Water is supplied from the water supply source 2 to the first storage tank 3 and the second storage tank 11 (step S1). Specifically, the water is supplied from the water supply source 2 to the first storage tank 3 through the water supply passage 7a, and the water is supplied from the water supply source 2 to the second storage tank 11 through the water supply passage 15a. As the water delivered from the water supply source 2, for example, pure water or city water (tap water) can be used.

（水位検出ステップ）
上記の水供給ステップと並行して、第１貯留タンク３，第２貯留タンク１１内に溜められた水の水位を検出する（ステップＳ２）。例えば、センサが第１貯留タンク３，第２貯留タンク１１内に溜められた水の水位を検出することで、それぞれの第１貯留タンク３，第２貯留タンク１１内の水位が下限水位かどうかを判定する（ステップＳ３）。水位検出ステップを実施した結果、定温水供給装置１の起動時に既に第１貯留タンク３，第２貯留タンク１１内に十分な量の水が貯留されており、それぞれの貯留タンク内の水位が下限水位を上回っている場合は、次の送出ステップに進む。なお、それぞれの貯留タンク内の水位が上限水位に達した場合は、水供給ステップを停止する。 (Water level detection step)
In parallel with the above water supply step, the water level of the water stored in the first storage tank 3 and the second storage tank 11 is detected (step S2). For example, the sensor detects the water level of the water stored in the first storage tank 3 and the second storage tank 11 to determine whether the water level in each of the first storage tank 3 and the second storage tank 11 is the lower limit water level. Is determined (step S3). As a result of performing the water level detection step, a sufficient amount of water has already been stored in the first storage tank 3 and the second storage tank 11 when the constant temperature water supply device 1 is activated, and the water level in each storage tank is the lower limit. If it is above the water level, proceed to the next sending step. When the water level in each storage tank reaches the upper limit water level, the water supply step is stopped.

（ポンプＯＮ／ＯＦＦステップ）
第１貯留タンク３，第２貯留タンク１１内の水位が下限水位を下回っている場合、即ち定温水供給装置１の起動時に第１貯留タンク３，第２貯留タンク１１が空である場合には、第１送出ポンプ４，第２送出ポンプ１２や第１流路７，第２流路１５中に気体（エアー）が混入している可能性が高い。流路や送出ポンプ中に気体（エアー）が混入していると送出ポンプが空回りしてしまい第１送出ポンプ４，第２送出ポンプ１２で第１貯留タンク３，第２貯留タンク１１内から水をうまく吸い出せないため、第１送出ポンプ４，第２送出ポンプ１２で水を送出する前に流路や送出ポンプ中の気体（エアー）を除去しておく。具体的には、送出ステップに進む前に第１送出ポンプ４，第２送出ポンプ１２の作動の切り替え（ＯＮ／ＯＦＦ）を行う（ステップＳ４）。例えば、第１貯留タンク３，第２貯留タンク１１内が空の状態になっている場合は、第１送出ポンプ４，第２送出ポンプ１２のＯＮとＯＦＦとを交互に数回繰り返し行った後、水供給源２から第１貯留タンク３，第２
貯留タンク１１への給水を開始する。また、定温水供給装置１の起動時に既に第１貯留タンク３，第２貯留タンク１１内に水が溜まっている場合は、第１送出ポンプ４，第２送出ポンプ１２をＯＮにしたまま、水供給源２から第１貯留タンク３，第２貯留タンク１１への給水を続ける。 (Pump ON/OFF step)
When the water levels in the first storage tank 3 and the second storage tank 11 are lower than the lower limit water level, that is, when the first storage tank 3 and the second storage tank 11 are empty when the constant temperature water supply device 1 is started, It is highly possible that gas is mixed in the first delivery pump 4, the second delivery pump 12, the first flow passage 7, and the second flow passage 15. When gas (air) is mixed in the flow path or the delivery pump, the delivery pump idles, and the first delivery pump 4 and the second delivery pump 12 supply water from the first storage tank 3 and the second storage tank 11. Therefore, the gas (air) in the flow path and the delivery pump is removed before the water is delivered by the first delivery pump 4 and the second delivery pump 12. Specifically, the operation of the first delivery pump 4 and the second delivery pump 12 is switched (ON/OFF) before proceeding to the delivery step (step S4). For example, when the first storage tank 3 and the second storage tank 11 are empty, after the first delivery pump 4 and the second delivery pump 12 are alternately turned on and off several times. , Water supply source 2 to first storage tank 3, second
Water supply to the storage tank 11 is started. If water is already stored in the first storage tank 3 and the second storage tank 11 when the constant temperature water supply device 1 is started, the water is stored with the first delivery pump 4 and the second delivery pump 12 turned on. Water supply from the supply source 2 to the first storage tank 3 and the second storage tank 11 is continued.

（送出ステップ）
第１貯留タンク３，第２貯留タンク１１内に十分な水量の水が溜められ、水量が下限水位を上回っているとセンサが判断したら、第１送出ポンプ４で第１貯留タンク３から水を送出し、第２送出ポンプ１２で第２貯留タンク１１から水を送出する（ステップＳ５）。具体的には、第１送出ポンプ４は、第１貯留タンク３から水を吸い出して、加工装置２０の所望の機構（例えば、加工水ノズル）に向けて水を送出する。また、第２送出ポンプ１２は、第２貯留タンク１１から水を吸い出して、スピンドル２１に向けて水を送出する。 (Sending step)
When the sensor determines that a sufficient amount of water is stored in the first storage tank 3 and the second storage tank 11 and the water amount is above the lower limit water level, the first delivery pump 4 draws water from the first storage tank 3. Then, the second delivery pump 12 delivers the water from the second storage tank 11 (step S5). Specifically, the first delivery pump 4 sucks water from the first storage tank 3 and delivers the water to a desired mechanism (for example, the processing water nozzle) of the processing apparatus 20. Further, the second delivery pump 12 sucks water from the second storage tank 11 and delivers the water to the spindle 21.

（圧力検出ステップ）
送出ステップで第１貯留タンク３から送出された水の圧力を第１圧力検出手段５で検出し、送出ステップで第２貯留タンク１１から送出された水の圧力を第２圧力検出手段１３で検出する（ステップＳ６）。第１圧力検出手段５，第２圧力検出手段１３で水の圧力を検出したら、続いて、圧力判定部９１は、第１圧力検出手段５，第２圧力検出手段１３で検出された水の圧力が、あらかじめ許容下限値記億部９０に記億させておいた許容下限値に達しているか否かを判断する（ステップＳ７）。 (Pressure detection step)
In the sending step, the pressure of the water sent from the first storage tank 3 is detected by the first pressure detecting means 5, and in the sending step, the pressure of the water sent from the second storage tank 11 is detected by the second pressure detecting means 13. Yes (step S6). When the pressure of the water is detected by the first pressure detecting means 5 and the second pressure detecting means 13, the pressure determining unit 91 then determines the pressure of the water detected by the first pressure detecting means 5 and the second pressure detecting means 13. Determines whether or not the allowable lower limit value stored in advance in the allowable lower limit value storage unit 90 has been reached (step S7).

（温度調整ステップ）
圧力判定部９１において第１圧力検出手段５，第２圧力検出手段１３で検出された圧力が許容下限値に達していると判断された場合は、送出ステップで送出された水を加工装置２０に至るまでに所定温度に調整する（ステップＳ８）。ここで、第１送出ポンプ４によって送出された水の温度が所定温度よりも高い場合は、チラーユニット６０で冷却して水の温度を下げる。また、第１送出ポンプ４によって送出された水の温度が所定温度よりも低い場合は、ヒーター６１で加熱して水の温度を上げる。こうして所定温度に調整された水は、第１フィルタ８を通って加工装置２０へ加工水として供給される（ステップＳ９）。加工水は、例えば、切削ブレードと被加工物との接触部分を冷却するとともに切削によって生じる切削屑を被加工物上から排出するために用いられる。また、第２送出ポンプ１２によって送出された水は、スピンドル２１を一定温度に保つための冷却水として使用されるため、かかる冷却水の温度が所定温度よりも高い場合は、チラーユニット１４で冷却して冷却水の温度を下げる。こうして所定温度に調整された冷却水は、第２フィルタ１６を通って加工装置２０のスピンドル２１へ供給される。 (Temperature adjustment step)
When the pressure determination unit 91 determines that the pressure detected by the first pressure detection unit 5 and the second pressure detection unit 13 has reached the allowable lower limit value, the water sent in the sending step is sent to the processing device 20. The temperature is adjusted to a predetermined temperature (step S8). Here, when the temperature of the water delivered by the first delivery pump 4 is higher than the predetermined temperature, the temperature of the water is lowered by cooling with the chiller unit 60. When the temperature of the water delivered by the first delivery pump 4 is lower than the predetermined temperature, the temperature of the water is raised by heating with the heater 61. The water adjusted to the predetermined temperature in this way is supplied as processing water to the processing device 20 through the first filter 8 (step S9). The working water is used, for example, to cool the contact portion between the cutting blade and the work piece and to discharge the cutting chips generated by cutting from the work piece. Further, the water delivered by the second delivery pump 12 is used as cooling water for keeping the spindle 21 at a constant temperature. Therefore, when the temperature of the cooling water is higher than a predetermined temperature, the chiller unit 14 cools it. And lower the temperature of the cooling water. The cooling water adjusted to the predetermined temperature in this way is supplied to the spindle 21 of the processing apparatus 20 through the second filter 16.

（送出ポンプリトライステップ）
圧力判定部９１において第１圧力検出手段５，第２圧力検出手段１３で検出された水の圧力が許容下限値に達しないと判断された場合には、第１送出ポンプ４，第２送出ポンプ１２の作動を一時停止させた後、再度第１送出ポンプ４，第２送出ポンプ１２を作動させる（ステップＳ１０）。具体的には、リトライ動作制御部９２の制御によって、第１送出ポンプ４，第２送出ポンプ１２の作動を一時停止させることにより、第１送出ポンプ４，第２送出ポンプ１２，第１流路７及び第２流路１５内に混入したエアーを第１貯留タンク３，第２貯留タンク１１側へ移動させる。このようにして、各送出ポンプ中や流路中からエアーを除去したら、リトライ動作制御部９２の制御によって、再度第１送出ポンプ４，第２送出ポンプ１２に対してリトライ動作を実施させる。これにより、各送出ポンプが空回りすることなく、第１貯留タンク３，第２貯留タンク１１から水を吸い出して、第１流路７，第２流路１５に水を送出することできる。 (Sending pump retry step)
When the pressure determination unit 91 determines that the water pressure detected by the first pressure detection unit 5 and the second pressure detection unit 13 does not reach the allowable lower limit value, the first delivery pump 4 and the second delivery pump After the operation of 12 is temporarily stopped, the first delivery pump 4 and the second delivery pump 12 are operated again (step S10). Specifically, the operations of the first delivery pump 4 and the second delivery pump 12 are temporarily stopped by the control of the retry operation control unit 92, so that the first delivery pump 4, the second delivery pump 12, and the first passage The air mixed in 7 and the second flow path 15 is moved to the first storage tank 3 and the second storage tank 11 side. After the air is removed from each of the delivery pumps and the flow path in this way, the retry operation control unit 92 controls the first delivery pump 4 and the second delivery pump 12 to perform the retry operation again. As a result, water can be sucked out from the first storage tank 3 and the second storage tank 11 and delivered to the first flow path 7 and the second flow path 15 without the delivery pumps spinning idle.

（圧力再検出ステップ）
送出ポンプリトライステップを実施した後、第１貯留タンク３，第２貯留タンク１１から送出された水の圧力を第１圧力検出手段５，第２圧力検出手段１３で再度検出する（ステップＳ１１）。圧力再検出ステップは、上記の圧力検出ステップと同様の動作によって行う。すなわち、圧力再判定部９３は、第１圧力検出手段５，第２圧力検出手段１３で検出された水の圧力が、許容下限値記億部９０に記億された許容下限値に達しているか否かを判断する（ステップＳ１２）。 (Pressure re-detection step)
After the delivery pump retry step is performed, the pressure of the water delivered from the first storage tank 3 and the second storage tank 11 is detected again by the first pressure detection means 5 and the second pressure detection means 13 (step S11). The pressure re-detection step is performed by the same operation as the above pressure detection step. That is, the pressure re-determination unit 93 determines whether the water pressure detected by the first pressure detection unit 5 and the second pressure detection unit 13 has reached the allowable lower limit value stored in the allowable lower limit value storage unit 90. It is determined whether or not (step S12).

圧力再判定部９３において第１圧力検出手段５で検出された圧力が許容下限値に達していると判断された場合は、上記の温度調整ステップに進み、所定温度に調整された加工水を加工装置２０に供給する。また、圧力再判定部９３において第２圧力検出手段１３で検出された圧力が許容下限値に達していると判断された場合は、上記の温度調整ステップに進み、所定温度に調整された冷却水をスピンドル２１に供給する。 When the pressure re-determination unit 93 determines that the pressure detected by the first pressure detection unit 5 has reached the allowable lower limit value, the process proceeds to the temperature adjustment step described above, and the processing water adjusted to the predetermined temperature is processed. Supply to the device 20. When the pressure re-determination unit 93 determines that the pressure detected by the second pressure detection unit 13 has reached the allowable lower limit value, the process proceeds to the temperature adjustment step described above, and the cooling water adjusted to the predetermined temperature is performed. Is supplied to the spindle 21.

（警告発信ステップ）
圧力再判定部９３において第１圧力検出手段５，第２圧力検出手段１３で検出された水の圧力が許容下限値に達していないと判断された場合は、圧力再判定部９３の判定結果を受けた警告発信部９４が警告発信手段１０に対して所定の警告を行うように信号を送る。そして、警告発信手段１０が例えばスピーカーを有する場合は、所定のアラーム音を鳴らして作業者に警告する。また、警告発信手段１０が例えば表示モニタを有する場合は、所定の文字や図形等を表示モニタに表示させて作業者に警告する（ステップＳ１３）。このようにして、第１送出ポンプ４，第２送出ポンプ１２の異常を感知したら、定温水供給装置１の稼働を停止して、第１送出ポンプ４，第２送出ポンプ１２のメンテナンスを行う。 (Warning dispatch step)
When the pressure re-determination unit 93 determines that the water pressure detected by the first pressure detection unit 5 and the second pressure detection unit 13 has not reached the allowable lower limit value, the determination result of the pressure re-determination unit 93 is The received warning transmission unit 94 sends a signal to the warning transmission means 10 so as to give a predetermined warning. If the warning transmission means 10 has, for example, a speaker, a predetermined alarm sound is emitted to warn the operator. If the warning transmission means 10 has, for example, a display monitor, predetermined characters or figures are displayed on the display monitor to warn the operator (step S13). In this way, when the abnormality of the first delivery pump 4 and the second delivery pump 12 is detected, the operation of the constant temperature water supply device 1 is stopped and the maintenance of the first delivery pump 4 and the second delivery pump 12 is performed.

このように、本発明の定温水供給方法では、第１送出ポンプ４，第２送出ポンプ１２で、第１貯留タンク３，第２貯留タンク１１から水を送出する送出ステップを実施した後、第１貯留タンク３，第２貯留タンク１１から送出された水の圧力を第１圧力検出手段５，第２圧力検出手段１３で検出する圧力検出ステップに進み、圧力検出ステップで検出された圧力が許容下限値に達しない場合に、第１送出ポンプ４，第２送出ポンプ１２の作動を一時停止させた後、再度第１送出ポンプ４，第２送出ポンプ１２を作動させる送出ポンプリトライステップを行うため、送出ポンプ中や流路中に混入したエアーを除去してから、第１送出ポンプ４，第２送出ポンプ１２を再稼働させることができる。よって、過度に第１送出ポンプ４，第２送出ポンプ１２を稼働させることがなく、定温水供給装置１で加工装置２０に水を供給するまでに相当の時間を要することもなく、従来に比べて効率よく所定温度の水を加工装置２０に供給することができる。
また、本発明の定温水供給方法では、送出ポンプリトライステップを実施した後、第１圧力検出手段５，第２圧力検出手段１３で検出された圧力が許容下限値に達するか否かを再度判断する圧力再検出ステップを行い、圧力再検出ステップで検出された水の圧力が許容下限値に達しない場合に、警告を発する警告発信ステップとを更に行うため、水の圧力が許容下限値に達しない原因がエアーの混入ではない場合においても、早期に異常を感知することができる。 As described above, in the constant temperature water supply method of the present invention, the first delivery pump 4 and the second delivery pump 12 perform the delivery step of delivering water from the first storage tank 3 and the second storage tank 11, and then The process proceeds to a pressure detection step in which the pressure of water sent from the first storage tank 3 and the second storage tank 11 is detected by the first pressure detection means 5 and the second pressure detection means 13, and the pressure detected in the pressure detection step is allowed. When the lower limit value is not reached, the operation of the first delivery pump 4 and the second delivery pump 12 is temporarily stopped, and then the delivery pump retry step of operating the first delivery pump 4 and the second delivery pump 12 is performed again. It is possible to restart the first delivery pump 4 and the second delivery pump 12 after removing the air mixed in the delivery pump and the flow path. Therefore, it is unnecessary to operate the first delivery pump 4 and the second delivery pump 12 excessively, and it does not take a considerable time to supply water to the processing device 20 by the constant temperature water supply device 1. Therefore, water having a predetermined temperature can be efficiently supplied to the processing device 20.
Further, in the constant temperature water supply method of the present invention, after the delivery pump retry step is performed, it is determined again whether the pressure detected by the first pressure detection means 5 and the second pressure detection means 13 reaches the allowable lower limit value. Perform the pressure re-detection step, and if the water pressure detected in the pressure re-detection step does not reach the permissible lower limit value, a warning is issued to issue a warning. Even if the cause of the failure is not the mixture of air, the abnormality can be detected early.

なお、本発明にかかる定温水供給装置１及び定温水供給方法が適用される装置は、本実施形態に示した加工装置２０に限定されるものではなく、例えば、被加工物を研削加工する研削装置にも適用することができる。 The apparatus to which the constant temperature water supply apparatus 1 and the constant temperature water supply method according to the present invention are applied is not limited to the processing apparatus 20 shown in the present embodiment, and for example, grinding for grinding a workpiece. It can also be applied to a device.

１：定温水供給装置 ２：水供給源 ３：第１貯留タンク ４：第１送出ポンプ
５：第１圧力検出手段 ６：温度調整手段 ６０：チラーユニット ６１：ヒーター
７：第１流路 ７ａ：給水路 ８：第１フィルタ
９：制御手段 ９０：許容下限値記億部 ９１：圧力判定部 ９２：リトライ動作制御部
９３：圧力再判定部 ９４：警告発信部 １０：警告発信手段
１１：第２貯留タンク １２：第２送出ポンプ １３：第２圧力検出手段
１４：チラーユニット １５：第２流路 １５ａ：給水路 １６：第２フィルタ
２０：加工装置 ２１：スピンドル 1: Constant temperature water supply device 2: Water supply source 3: First storage tank 4: First delivery pump 5: First pressure detection means 6: Temperature adjustment means 60: Chiller unit 61: Heater 7: First flow path 7a: Water supply channel 8: First filter 9: Control means 90: Allowable lower limit value storage section 91: Pressure determination section 92: Retry operation control section 93: Pressure redetermination section 94: Warning transmission section 10: Warning transmission section 11: Second Storage tank 12: Second delivery pump 13: Second pressure detection means 14: Chiller unit 15: Second flow passage 15a: Water supply passage 16: Second filter 20: Processing device 21: Spindle

Claims (2)

水供給源から供給された水を貯留する貯留タンクと、該貯留タンクから該加工装置へ水を送出する送出ポンプと、該貯留タンクから送出された水の圧力を検出する圧力検出手段と、該貯留タンクから加工装置に至る流路上の該送出ポンプよりも下流に配設され水を所定温度に調整する温度調整手段と、を備えた定温水供給装置で所定温度の水を該加工装置に供給する定温水供給方法であって、
該水供給源から該貯留タンクに水を供給する水供給ステップと、
該貯留タンク内に溜められた水の水位を検出する水位検出ステップと、
該貯留タンク内の水位が所定の下限水位を下回っている場合に、該送出ポンプのＯＮとＯＦＦとを交互に繰り返すポンプＯＮ／ＯＦＦステップと、
該ポンプＯＮ／ＯＦＦステップを実施した後、該貯留タンク内の水量が該下限水位を上回っている場合に、該送出ポンプで該貯留タンクから水を送出する送出ステップと、
該送出ステップで送出された水を該加工装置に至るまでに該温度調整手段で該所定温度に調整する温度調整ステップと、を備え、
該送出ステップで該貯留タンクから送出された水の圧力を該圧力検出手段で検出する圧力検出ステップと、
該圧力検出ステップで検出された圧力が所定値に達しない場合に、該送出ポンプの作動を一時停止させた後、再度該送出ポンプを作動させる送出ポンプリトライステップと、をさらに備え、該流路中に混入した気体を該流路から除去する定温水供給方法。 A storage tank for storing water supplied from a water supply source, a delivery pump for delivering water from the storage tank to the processing apparatus, a pressure detection means for detecting the pressure of the water delivered from the storage tank, A constant temperature water supply device provided on the flow path from the storage tank to the processing device downstream of the delivery pump for adjusting the water to a predetermined temperature, and supplies the water at the predetermined temperature to the processing device. A method of supplying constant temperature water,
A water supply step of supplying water from the water supply source to the storage tank;
A water level detecting step of detecting a water level of water stored in the storage tank,
A pump ON/OFF step in which when the water level in the storage tank is below a predetermined lower limit water level, the delivery pump is alternately turned ON and OFF;
A delivery step of delivering water from the storage tank by the delivery pump when the amount of water in the storage tank exceeds the lower limit water level after performing the pump ON/OFF step ,
A temperature adjusting step of adjusting the water sent out in the sending step to the predetermined temperature by the temperature adjusting means before reaching the processing device,
A pressure detecting step of detecting the pressure of water sent from the storage tank in the sending step by the pressure detecting means;
When the pressure detected in the pressure detection step does not reach a predetermined value, the operation of the delivery pump is temporarily stopped, and then the delivery pump is operated again, and the delivery pump retry step is further provided. A constant temperature water supply method for removing gas mixed therein from the flow path. 前記送出ポンプリトライステップを実施した後、該圧力検出手段で検出された水の圧力が該所定値に達しない場合に、警告を発する警告発信ステップを更に備えた請求項１に記載の定温水供給方法。 The constant temperature water supply according to claim 1, further comprising a warning sending step for issuing a warning when the pressure of the water detected by the pressure detecting means does not reach the predetermined value after the sending pump retry step is performed. Method.
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JP2013079746A (en) * 2011-10-03 2013-05-02 Panasonic Corp Cogeneration system
CN202344123U (en) * 2011-12-02 2012-07-25 深圳市大族激光科技股份有限公司 Device for supplying water and cooling
JP2013228117A (en) * 2012-04-24 2013-11-07 Mitsubishi Electric Corp Storage type water heater
JP2014080874A (en) * 2012-10-15 2014-05-08 Panasonic Corp Pump and liquid circulating device
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