WO2016031301A1 - Dispositif d'alimentation en fluide de refroidissement - Google Patents

Dispositif d'alimentation en fluide de refroidissement Download PDF

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Publication number
WO2016031301A1
WO2016031301A1 PCT/JP2015/062362 JP2015062362W WO2016031301A1 WO 2016031301 A1 WO2016031301 A1 WO 2016031301A1 JP 2015062362 W JP2015062362 W JP 2015062362W WO 2016031301 A1 WO2016031301 A1 WO 2016031301A1
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WIPO (PCT)
Prior art keywords
liquid level
coolant
tank
filter
supply device
Prior art date
Application number
PCT/JP2015/062362
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English (en)
Japanese (ja)
Inventor
知義 松山
充 多賀
敏 宮本
政英 角谷
雄平 北出
拓也 吉林
Original Assignee
Dmg森精機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dmg森精機株式会社 filed Critical Dmg森精機株式会社
Priority to DE112015003896.5T priority Critical patent/DE112015003896T5/de
Publication of WO2016031301A1 publication Critical patent/WO2016031301A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1084—Arrangements for cooling or lubricating tools or work specially adapted for being fitted to different kinds of machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49052—Accessory, coolant

Definitions

  • the present invention relates to a coolant supply device that is attached to a machine tool and supplies coolant to the machine tool.
  • Conventional general coolant supply devices are arranged in a state of communicating with each other, and a dirty tank and a clean tank in which coolant is stored, respectively, and a filter disposed in a communication part between the dirty tank and the clean tank,
  • the basic configuration is a supply pump arranged in the clean tank, and a supply pipe that has one end connected to the supply pump and the other end connected to the machine tool, and supplies coolant discharged from the supply pump to the machine tool.
  • the coolant stored in the clean tank is supplied to the machine tool via the supply pipe by the supply pump, and the supplied coolant is returned to the dirty tank (Patent Documents 1 and 2). reference).
  • the dirty tank is divided into two, and a float switch is provided in each dirty tank.
  • the coolant from the machine tool is recirculated to one dirty tank.
  • the filter on the dirty tank side becomes clogged and the liquid level reaches the upper limit, this is detected by the float switch, the dirty tank is slid, and the coolant from the machine tool is returned to the other dirty tank
  • the dirty tank for returning the coolant from the machine tool is alternately switched.
  • the coolant supply device disclosed in Patent Document 2 divides the clean tank into two parts, provides a backup filter at the boundary, and further supplies liquid to the clean tank (first clean tank) connected to the dirty tank.
  • a level sensor is provided, and a jet nozzle for cleaning the backup filter is provided.
  • the backup filter is clogged and the liquid level of the first clean tank rises, and the liquid level sensor When it is detected that the liquid level in the first clean tank has reached the upper limit, coolant is discharged from the ejection nozzle to clean the backup filter.
  • the coolant supply apparatus of this patent document 2 when a backup filter raise
  • the liquid level in the upstream tank (the dirty tank of Patent Document 1 and the first clean tank of Patent Document 2) is detected by a float switch, and whether or not the filter is clogged is detected. Since the determination is made, there is a problem that clogging of the filter cannot be accurately detected.
  • the amount of coolant stored in the tank gradually depends on the usage state after charging, for example, is discharged out of the system together with chips and the like. It fluctuates, and the amount of coolant in the tank and the clogged state of the filter are not necessarily directly related. For example, when the amount of coolant in the tank is small, the coolant level in the upstream tank that rises due to the clogged state of the filter rises due to the same clogged state of the filter when the amount of coolant in the tank is large. Thus, the clogged state of the filter cannot be accurately determined only by the coolant level in the upstream tank.
  • the maintenance items in the coolant supply device include items relating to the presence or absence of filter loss, whether the liquid levels in the dirty tank and clean tank are appropriate, or the deterioration state of the coolant. If such items are not properly managed, a sufficient amount of coolant is not supplied to the machine tool, or the coolant overflows from the dirty tank and the clean tank, or dirty coolant is supplied to the machine tool. Produce.
  • the present invention has been made in view of the above circumstances, and provides a coolant supply device that can automatically and accurately manage clogging of a filter and other maintenance items. Objective.
  • the present invention for solving the above problems is a coolant supply apparatus attached to a machine tool, Dirty tanks and clean tanks that are arranged in communication with each other and each store coolant, A filter disposed in a communicating portion between the dirty tank and the clean tank; A supply pump disposed in the clean tank; One end connected to the supply pump, the other end connected to the machine tool, and a supply pipe for supplying coolant discharged from the supply pump to the machine tool, In the coolant supply apparatus configured so that the coolant stored in the clean tank is supplied to the machine tool by the supply pump via the supply pipe, and the supplied coolant is returned to the dirty tank.
  • the present invention relates to a coolant supply apparatus provided with a state determination unit that determines the state of the coolant supply apparatus based on the difference in position.
  • the liquid level in the dirty tank is measured by the first liquid level gauge, and the liquid level in the clean tank is measured by the second liquid level gauge.
  • the supply pump has stopped in the appropriate state in which each part of a coolant supply apparatus has no abnormality, the liquid level of a dirty tank and the liquid level of a clean tank become the same liquid level.
  • the supply pump is operated to supply the clean tank coolant to the machine tool through the supply pipe, the supplied coolant is returned to the dirty tank, and the dirty tank coolant is transferred to the clean tank through the filter.
  • the liquid level in the clean tank is lowered and the liquid level in the dirty tank is raised, resulting in a liquid level difference between them.
  • the state determination unit determines the state of the coolant supply device based on the liquid level difference. In addition, this can be accurately determined by determining whether or not there is an abnormality in the coolant supply device based on the liquid level difference between the dirty tank and the clean tank.
  • the said state determination part is a liquid level difference of the liquid level of the said dirty tank measured by the said 1st liquid level meter, and the liquid level of the said clean tank measured by the said 2nd liquid level meter. It is possible to adopt an aspect configured to monitor and determine that the filter is clogged when the liquid level difference exceeds the first reference value.
  • the first reference value is a liquid level difference when it is recognized that the filter is clogged to the extent that it is necessary to clean or replace the filter. For example, it is recognized that the filter needs to be cleaned or replaced.
  • the relationship between the clogged state and the liquid level difference is grasped empirically, and the liquid level difference in the clogged state is set as the first reference value.
  • the said state determination part is a liquid level of the liquid level of the said dirty tank measured by the said 1st liquid level meter, and the liquid level of the said clean tank measured by the said 2nd liquid level meter. It is possible to adopt an aspect configured to monitor the difference and predict the time when the filter is clogged by comparing the liquid level difference with the first reference value.
  • the liquid level difference between the dirty tank and the clean tank gradually increases. Therefore, the liquid level difference is monitored, and the comparison between the liquid level difference and the first reference value, that is, for example, by monitoring the change in the difference, the liquid level difference becomes the first difference from the tendency.
  • the reference value is exceeded, that is, when the filter is clogged can be predicted.
  • the state determination unit immediately after the use of a new coolant the liquid level of the dirty tank measured by the first liquid level gauge and the clean level measured by the second liquid level gauge.
  • the reference liquid level difference set based on the difference from the tank liquid level is stored as the second reference value, and is measured by the first liquid level meter immediately after the filter is replaced or cleaned.
  • the liquid level difference between the liquid level of the dirty tank and the liquid level of the clean tank measured by the second liquid level meter is calculated, and the calculated liquid level difference exceeds the second reference value
  • the aspect comprised so that it might determine with coolant deteriorating can be taken.
  • lubricating oil is supplied to the sliding surface of the machine tool. Therefore, the viscosity of the coolant supplied into the machine tool increases when the lubricating oil is mixed therein.
  • the coolant is a powder generated by processing, and its viscosity increases when fine powder that cannot be removed by a filter is mixed, and further, the moisture evaporates over time. Viscosity increases. The coolant is judged to have deteriorated when the viscosity increases beyond a certain level and adversely affects processing. Thus, when the viscosity of the coolant increases, the resistance when passing through the filter increases, and the liquid level difference between the dirty tank and the clean tank increases.
  • the state determination unit is a reference value set immediately after the use of a new coolant, that is, based on the liquid level difference between the dirty tank and the clean tank at the initial stage, and can be regarded as having deteriorated the coolant.
  • the state determination unit While storing the second reference value corresponding to the liquid level difference, the liquid level difference between the dirty tank and the clean tank immediately after replacement or cleaning of the filter, i.e., when the filter is not clogged, When the liquid level difference exceeds the second reference value, it is determined that the coolant has deteriorated.
  • the state determination unit configured as described above, it is possible to determine whether or not the coolant has deteriorated.
  • the state determination unit immediately after using a new coolant, the liquid level of the dirty tank measured by the first liquid level gauge and the liquid level of the clean tank measured by the second liquid level gauge.
  • the reference liquid level difference set based on the difference between the liquid level and the dirty tank liquid level measured by the first liquid level meter each time the filter is replaced or cleaned.
  • the comparison between the liquid level difference and the second reference value that is, for example, by monitoring the change in the difference, the time when the liquid level difference exceeds the second reference value from the tendency, that is, The time when the coolant deteriorates can be predicted. In this way, by predicting the time when the coolant deteriorates, the replacement can be performed systematically.
  • the said state determination part is a liquid level of the liquid level of the said dirty tank measured by the said 1st liquid level meter, and the liquid level of the said clean tank measured by the said 2nd liquid level meter.
  • a mode may be adopted in which the difference is monitored, and when the liquid level difference falls below a third reference value, it is determined that the filter is defective.
  • the filter If a filter is damaged, the resistance when the coolant passes through the filter decreases, and the liquid level difference between the dirty tank and the clean tank decreases. Therefore, when the level difference between the dirty tank and the clean tank is set to the third reference value when the filter is lost to the extent that replacement is deemed necessary, and the coolant supply device is in operation.
  • the filter When the liquid level difference between the dirty tank and the clean tank is compared with the third reference value, and the liquid level difference falls below the third reference value, the filter has a defect that requires replacement. It can be determined that it has occurred.
  • the said state determination part is a liquid level of the liquid level of the said dirty tank measured by the said 1st liquid level meter, and the liquid level of the said clean tank measured by the said 2nd liquid level meter.
  • a mode may be adopted in which the difference is monitored and the time when the filter is deficient is predicted by comparing the liquid level difference with the third reference value.
  • the coolant supply device may further include a display device that displays the determination result determined by the state determination unit. In this way, the operator can accurately grasp the state of the coolant supply device, and appropriate measures can be taken as appropriate.
  • the coolant supply device of the present invention it is possible to accurately and automatically determine whether or not the filter is clogged, whether or not the filter is missing, and whether or not the coolant is deteriorated.
  • the coolant supply device 10 of this example is divided into a dirty tank 12 and a clean tank 13 that are in communication with each other, and a coolant tank 11 in which coolant C is stored, a dirty tank 12, and a clean tank 13.
  • a filter 14 disposed in a communication part (boundary part) with the gas, a supply pump 17 disposed in the clean tank 13, and one supply connected to the supply pump 17 and the other connected to the machine tool 1.
  • a pipe 15, a reflux part 16 for returning the coolant C supplied to the machine tool 1 to the dirty tank 12, and a liquid level of the coolant C in the dirty tank 12 are measured in the dirty tank 12.
  • the display device 26 and the input device 27 are provided.
  • the said reflux part 16 is not an essential structure, If the coolant supplied to the machine tool 1 can be appropriately collect
  • first liquid level meter 19 and the second liquid level meter 20 may be anything as long as they can measure the liquid level.
  • a float type e.g., a float type, an electrode type, an ultrasonic type, a static type, etc.
  • Various types such as a capacitance type can be used.
  • the liquid level in the dirty tank 12 and the liquid level in the clean tank 13 are as shown in FIG. And the same liquid level.
  • the supply pump 17 is operated to supply the coolant C in the clean tank 13 to the machine tool 1 through the supply pipe 15.
  • the supplied coolant C is returned to the dirty tank 12, and the coolant C in the dirty tank 12 is returned.
  • the liquid level difference Ld is transferred from the dirty tank 12 to the clean tank 13 due to the residence of the coolant C in the machine tool 1 and the resistance of the filter 14. Due to the delay, the liquid level difference Ld becomes substantially constant regardless of the amount of the coolant C stored in the dirty tank 12 and the clean tank 13.
  • the state determination unit 25 of this example receives the liquid level of the dirty tank 12 measured by the first liquid level gauge 19 from the first liquid level gauge 19 and is measured by the second liquid level gauge 20.
  • the liquid level in the clean tank 13 is received from the second liquid level meter 20 and the processing shown in FIGS. 3 and 4 is executed to determine the state of the coolant supply device 10.
  • the state determination unit 25 receives data related to the liquid level in the dirty tank 12 from the first liquid level gauge 19 and cleans the second level gauge 20 from the first level gauge 20 as described above. Data relating to the liquid level in the tank 13 is received, and first, the liquid level difference Ld is calculated (step S1). When the supply pump 17 is in an operating state, a predetermined liquid level difference Ld is generated. Therefore, based on the calculated liquid level difference Ld, it is determined whether or not the supply pump 17 is in an operating state (step). S2). In addition, the state determination part 25 can also receive the control signal of the supply pump 17 from the control apparatus (not shown) which controls the action
  • step S22 If the supply pump 17 is not in operation, that is, is stopped, whether the liquid level in the clean tank (C tank) 13 is equal to or lower than a lower limit Ra set in advance in the stopped state. After confirming (step S22) and being lower than the lower limit Ra, after confirming the liquid level of the clean tank 13 and prompting to add the coolant C on the display device 26 (step S22) S23), the process proceeds to step S24. With this display, the operator can recognize that the amount of the coolant C is insufficient, and can appropriately take measures to add the coolant.
  • the supply pump 17 is stopped, the liquid level in the clean tank 13 and the liquid level in the dirty tank (D tank) 12 are substantially the same, so the liquid level in the dirty tank 12 is confirmed. However, since the supply pump 17 supplies the coolant C in the clean tank 13 to the machine tool 1, it is possible to check whether or not an appropriate amount of the coolant C in the clean tank 13 is stored. But it makes sense.
  • Step S24 when the liquid level in the clean tank 13 exceeds the lower limit Ra, the liquid level in the clean tank 13 or the dirty tank 12 is equal to or higher than the upper limit Rb set in advance in the stopped state.
  • Step S25 if it is equal to or higher than the upper limit value Rb, the liquid level is confirmed, and a display for prompting the coolant C to be taken out is performed (step S25), and then a step described later
  • the process proceeds to S26, and if the upper limit value Rb is not exceeded, the process also proceeds to Step S26.
  • step S3 determines whether or not there is an input indicating that the coolant C has been replaced from the input device 27, that is, the coolant C is new.
  • Step S3 if the coolant C is not new, the process proceeds to step S5. If the coolant C is new, a reference value R2 serving as a criterion for judging the deterioration of the coolant C is set. After setting and storing based on the current liquid level difference Ld (step S4), the process proceeds to step S5.
  • lubricating oil is supplied to the sliding surface of the machine tool 1, and the viscosity of the coolant C supplied into the machine tool 1 increases when the lubricating oil is mixed.
  • the viscosity of C increases due to the mixing of fine powder that cannot be removed by the filter 14 due to processing, and further, the moisture evaporates over time.
  • the viscosity of the coolant C increases more than a certain level, it is determined that the coolant C has a bad influence on processing, that is, a deteriorated state.
  • the viscosity of the coolant C increases and the coolant C deteriorates, the resistance when passing through the filter 14 increases, and the liquid level difference Ld between the dirty tank 12 and the clean tank 13 increases. Will do.
  • the state determination unit 25 first calculates a liquid level difference Ld when the coolant C is new, and adds to this an increase in the liquid level difference Ld when it is considered that the coolant C has deteriorated.
  • the reference value R2 is set and stored.
  • the increase in the liquid level difference Ld when the coolant C is assumed to be in a deteriorated state is set empirically and stored in the state determination unit 25 in advance through the input device 27.
  • the reference value R1 for determining clogging of the filter 14 and the reference value R3 for determining loss of the filter 14 and the like are previously input from the input device 27 and stored in the state determination unit 25. ing.
  • the reference value R1 is a liquid level difference Ld when it is recognized that the filter 14 is clogged to the extent that it is necessary to clean or replace the filter 14, and is set empirically.
  • the reference value R3 is a liquid level difference Ld between the dirty tank 12 and the clean tank 13 when the filter 14 is lost to such an extent that it is recognized that replacement is necessary, and this is also set empirically. .
  • step S5 the state determination unit 25 confirms whether or not the liquid level in the clean tank 13 is equal to or lower than the lower limit value Rc set in advance in the operating state (step S5), and becomes lower than the lower limit value Rc.
  • step S6 after confirming the liquid level in the clean tank 13 and prompting to add the coolant C on the display device 26 (step S6), the process proceeds to step S7. move on. By this display, the operator can recognize that the amount of the coolant C is insufficient, and can appropriately execute a measure for adding the coolant.
  • step S7 if the liquid level in the clean tank 13 exceeds the lower limit value Rc, whether the liquid level in the clean tank 13 or the dirty tank 12 is equal to or higher than the upper limit value Rd set in advance in the operating state.
  • step S8 After confirming (step S7) and being equal to or greater than the upper limit value Rd, after confirming the liquid level and performing a display for prompting the coolant C to be removed, as in step S25 (step S8). Then, the process proceeds to step S9. Similarly, when the upper limit value Rd is not exceeded, the process proceeds to the next step S9.
  • the operator can recognize that the amount of the coolant C exceeds an appropriate amount, and a measure such as extracting the coolant C can be urged.
  • step S9 the state determination unit 25 determines whether or not the liquid level difference Ld exceeds a reference value R1 that is a criterion for determining clogging of the filter 14, and the liquid level difference Ld is determined to be the reference value R1. Is exceeded, after confirming the state of the filter 14 on the display device 26 and performing a display prompting its cleaning or replacement (step S10), the process proceeds to the next step S11, where the liquid level difference Ld is the reference level. Similarly, when the value R1 is not exceeded, the process proceeds to the next step S11.
  • step S11 the state determination unit 25 checks whether or not the filter 14 has been cleaned or replaced is input from the input device 27 (step S11), and when the filter is cleaned or replaced. Next, it is determined whether or not the liquid level difference Ld exceeds a reference value R2 for determining deterioration of the coolant C. If the liquid level difference Ld exceeds the reference value R2, the display After displaying on the device 26 that the coolant C has deteriorated and prompting the replacement of the coolant C (step S13), the process proceeds to the next step S11. On the other hand, if it is confirmed in step S11 that the filter 14 has not been cleaned or replaced, if it is determined in step S12 that the liquid level difference Ld does not exceed the reference value R2, the process returns to step S11. move on.
  • step S14 the state determination unit 25 determines whether or not the liquid level difference Ld is below a reference value R3 that is a determination criterion for the loss of the filter 14, and the liquid level difference Ld is less than the reference value R3. If it is lower, after confirming the state of the filter 14 on the display device 26 and prompting the replacement thereof (step S15), the process proceeds to the next step S16, where the liquid level difference Ld is the reference value R3. Similarly, if not, the process proceeds to the next step S16.
  • the state where the liquid level difference Ld is lower than the reference value R3 may be caused by a failure of the supply pump 17, a clogging of the supply pipe 15, or the like in addition to the filter 14 being lost. For this reason, it is preferable to display on the display device 26 in addition to confirming the state of the filter 14 and prompting replacement thereof, as well as confirming the supply pump 17 and confirming the supply pipe 15.
  • the state determination unit 25 displays the predicted deterioration time on the display device 26 (step S17), and then predicts the clogging time of the filter 14. After the predicted clogging time is displayed on the display device 26 (step S19), the loss time of the filter 14 is predicted (step S20), and the predicted loss time is displayed on the display device 26. After that, the processes of steps S1 to S26 are repeatedly executed at predetermined time intervals until a process end command is received (step S26).
  • the liquid level difference between the dirty tank 12 and the clean tank 13 immediately after replacement or cleaning of the filter 14 gradually increases. Therefore, the comparison between the liquid level difference Ld immediately after replacement or cleaning and the reference value R2, that is, for example, by monitoring the change in the difference, the time when the liquid level difference Ld exceeds the reference value R2 from the tendency, The time when the coolant C deteriorates can be predicted. In this way, by predicting the time when the coolant C deteriorates and displaying it on the display device 26, the operator can systematically replace the coolant C.
  • the liquid level difference Ld between the dirty 12 tank and the clean tank 13 gradually increases. Therefore, while monitoring this liquid level difference Ld, comparing the liquid level difference Ld with the reference value R1, that is, for example, by monitoring the change in the difference, the liquid level difference Ld becomes the reference value R1. It is possible to predict the time when the filter 14 is exceeded, that is, when the filter 14 is clogged. Thus, by predicting the time when the filter is clogged and displaying it on the display device 16, the operator can perform maintenance such as cleaning and replacement of the filter 14 in a planned manner. .
  • the loss of the filter 14 often progresses with time, and the liquid level difference Ld between the dirty tank 12 and the clean tank 13 gradually decreases with the loss of the filter 14. Therefore, the comparison between the liquid level difference Ld and the reference value R3, that is, the change of the difference is monitored, for example, when the liquid level difference Ld falls below the reference value R3 from the tendency, that is, replacement is necessary. It is possible to predict when the filter 14 is lost to a certain extent. Thus, by predicting the loss time of the filter 14 and displaying it on the display device 26, the operator can replace the filter 14 systematically.
  • the state determination unit 25 causes the coolant C in the clean tank 13 (or the dirty tank 12) when the supply pump 17 is stopped and in operation. It is determined whether or not the liquid level is an appropriate amount, and if it is not the appropriate amount, the display device 26 displays accordingly, so that the operator adds this when the amount of the coolant C is small When the amount of the coolant C is large, it is possible to take an appropriate measure such as extracting it.
  • the state determination unit 25 further 1) whether or not the filter 14 is clogged, 2) a predicted time when the filter 14 is clogged, and 3) a defect in the filter 14. 4) Prediction time when the filter 14 is lost, 5) Whether the coolant C is deteriorated, 6) Time when the coolant C is deteriorated, and the determination result is displayed on the display device 26. Therefore, the operator can perform maintenance work such as cleaning or replacement of the filter 14 and replacement of the coolant C at an appropriate time.
  • the determination regarding the clogged or missing state of the filter 14 and the deterioration state of the coolant C is measured by the liquid level of the dirty tank 12 measured by the first liquid level gauge 19 and the second liquid level gauge. Since it is based on the liquid level difference Ld with the liquid level of the clean layer 13 to be performed, it can be performed more accurately than in the prior art.
  • a cleaning mechanism for cleaning the filter 14 may be provided.
  • the state determination unit 25 may be provided in the cleaning mechanism when it is determined that the filter 14 is clogged.
  • the filter 14 may be configured to be cleaned.
  • the coolant supply apparatus 10 ′ of this example includes a coolant tank 11 ′ having a T-shape in a plan view, which includes a dirty tank 12 ′ and a clean tank 13 ′ communicating with each other, and a clean tank 13 ′.
  • a coolant tank 11 ′ having a T-shape in a plan view, which includes a dirty tank 12 ′ and a clean tank 13 ′ communicating with each other, and a clean tank 13 ′.
  • three supply pumps 17 ', a filter 14' shown in FIG. 6, and a cleaning mechanism 18 ' In addition to this, although not specifically shown, it is the same as in the first embodiment.
  • the chip conveyor 30 includes a cover body 31, a drive pulley 34, driven pulleys 36 and 38, a conveyor belt 32, guides 39, 40, and 41 disposed in the cover body 31. , 42 and the like.
  • the drive pulley 34 is provided at both ends of the rotary shaft 33.
  • the driven pulley 34 is provided at both ends of the rotary shaft 35
  • the driven pulley 38 is provided at both ends of the rotary shaft 37.
  • the drive pulley 34 and the rotation shaft 33 are disposed on the upper portion of the L-shaped cover body 31, and the driven pulley 36 and the rotation shaft 35 are disposed on the bent portion of the cover body 31. 38 and the rotating shaft 37 are arrange
  • Chains provided at both edges of the conveyor belt 32 are wound around the drive pulley 34 and the driven pulleys 36 and 38, and the drive pulley 34 is driven by a drive motor (not shown), so that the conveyor belt. 32 rotates in the direction of arrows AB.
  • the arrow A direction is the forward direction
  • the arrow B direction is the reverse direction.
  • the guides 39, 40, 41, 42 guide the travel of the conveyor belt 32.
  • An opening 31a is formed on the upper surface of the end of the horizontal side of the cover body 31 (the left end in FIG. 6), and an opening 31b directed downward is formed at the upper end of the vertical side of the cover 31. Is formed.
  • the rotary shaft 5 is made of a hollow cylindrical member, and the filter 14 'having the same hollow cylindrical shape is inserted therein, and the rotary shaft 5 and the filter 14' are integrated. Rotate. In addition, openings along the longitudinal direction of the rotating shaft 5 are formed at a predetermined pitch in the circumferential direction, and the filter 14 ′ is exposed to the internal space of the cover body 31 through the openings. .
  • the chip conveyor 30 is assembled in a coolant tank 11 ′.
  • the coolant tank 11 ′ includes a dirty tank 12 ′ in which the chip conveyor 30 is stored and other clean tanks. It is partitioned into a tank 13 '.
  • the cleaning mechanism 18 ' is accommodated in the filter 14', and the cleaning mechanism 18 'is appropriately supported by a non-rotating member 18b'. Further, the cleaning mechanism 18 ′ includes a plurality of nozzles 18a ′ disposed along the longitudinal direction of the filter 14 ′, and the supply pipe 17 ′ (not shown) is connected to the nozzles 18a ′. ), The coolant C in the clean tank 13 ′ is supplied, and the coolant C is discharged from the nozzle 18a ′ toward the filter 14 ′. Both ends of the filter 14 'are in communication with the clean tank 13'.
  • an opening 12a ′ is formed on the upper surface of the dirty tank 12 ′ at a portion corresponding to the opening 31a of the cover body 31, and the inside of the cover body 31 is connected to the outside through these openings 31a and 12a ′. is doing.
  • the chip conveyor 30 and the coolant supply device 10 ′ configured as described above are disposed, for example, so that the opening 12 a is positioned below the machining area of the machine tool.
  • the coolant C is appropriately supplied to the machine tool (not shown) via the supply pipe (not shown) and supplied by the supply pump 17 ′.
  • the coolant C is collected together with the processing waste into the chip conveyor 30 through the openings 12a ′ and 31a below the processing region of the machine tool (not shown).
  • the processing waste collected in the chip conveyor 30 is conveyed to the opening 31b side by a conveyor belt 32 that rotates in the direction of arrow A, and the chip bucket (disposed below) from the opening 31b. (Not shown).
  • the coolant C passes through the filter 14 'and is returned to the clean tank 13' from both ends thereof.
  • the filter 14 ' is back-washed by the coolant C discharged from the nozzle 18a'.
  • the state determination unit also cleans the tank 13 ′ (or dirty tank) when the supply pump 17 ′ is stopped and operating. It is determined whether or not the liquid level of the coolant C in the tank 12 ′) is an appropriate amount, and if it is not an appropriate amount, the display device 26 displays accordingly. Further, when the supply pump 17 is in operation, 1) whether or not the filter 14 'is clogged, 2) a predicted time when the filter 14' is clogged, and 3) whether or not the filter 14 'is defective.
  • the clogging of the filter 14 ′ is clogged in the piping of the cleaning mechanism 18 ′. It may be caused by. Therefore, in the configuration as in this example, when the liquid level difference Ld exceeds the reference value R1, the state determination unit (not shown) sends the filter 14 ′ and the filter 14 ′ and the display device (not shown). It is preferable to check the piping of the cleaning mechanism 18 'and display it so as to prompt the cleaning or replacement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

La présente invention concerne un dispositif (10) d'alimentation en fluide de refroidissement comprenant : un réservoir sale (12) et un réservoir propre (13), qui sont en communication l'un avec l'autre; un filtre (14) disposé au niveau de la section où le réservoir sale (12) et le réservoir propre (13) sont en communication l'un avec l'autre; une pompe (17) d'alimentation disposée dans le réservoir propre (13); un tuyau (15) d'alimentation destiné à fournir un fluide (C) de refroidissement, qui a été évacué de la pompe (17) d'alimentation, à une machine-outil (1); un premier dispositif (19) de mesure de niveau de liquide destiné à mesurer le niveau de liquide du réservoir sale (12); un second dispositif (20) de mesure de niveau de liquide destiné à mesurer le niveau de liquide du réservoir propre (13); et une section (25) de détermination d'état destinée à déterminer, pendant que la pompe (17) d'alimentation alimente en fluide (C) de refroidissement la machine-outil (1), l'état du dispositif (10) d'alimentation en fluide de refroidissement en fonction de la différence entre le niveau de liquide du réservoir sale (12) et le niveau de liquide du réservoir propre (13), qui sont mesurés respectivement par le premier dispositif (19) de mesure de niveau de liquide et le second dispositif (20) de mesure de niveau de liquide.
PCT/JP2015/062362 2014-08-25 2015-04-23 Dispositif d'alimentation en fluide de refroidissement WO2016031301A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112015003896.5T DE112015003896T5 (de) 2014-08-25 2015-04-23 Kühlmittelzuführvorrichtung

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JP2014-170419 2014-08-25
JP2014170419A JP6328523B2 (ja) 2014-08-25 2014-08-25 クーラント供給装置

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WO2016031301A1 true WO2016031301A1 (fr) 2016-03-03

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DE (1) DE112015003896T5 (fr)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018161688A (ja) * 2017-03-24 2018-10-18 Dmg森精機株式会社 チップコンベアおよび工作機械
CN109702552A (zh) * 2019-02-22 2019-05-03 中原工学院 一种用于机械零部件制造用自动降温装置
JP7483310B2 (ja) 2020-03-09 2024-05-15 株式会社ディスコ 表示システム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019054018A1 (fr) * 2017-09-14 2019-03-21 住友重機械ファインテック株式会社 Système de traitement de liquide de refroidissement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63122612U (fr) * 1987-02-03 1988-08-09
JPH10277323A (ja) * 1997-04-08 1998-10-20 Toyota Motor Corp フィルタ装置
FR2962919A1 (fr) * 2010-07-26 2012-01-27 Serge Gilbert Andrieu Procede et dispositif de surveillance des filtres a grand volume de liquides en circulation libre dans des canalisations ouvertes, pour commander leur nettoyage avant le colmatage et alerter si ce nettoyage est defaillant
JP2014111284A (ja) * 2012-11-02 2014-06-19 Fanuc Ltd フィルタ洗浄装置を備えた工作機械
EP2745906A1 (fr) * 2012-12-21 2014-06-25 Kurt Gassner Procédé de séparation mécanique de solides dans les eaux usées

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63122612U (fr) * 1987-02-03 1988-08-09
JPH10277323A (ja) * 1997-04-08 1998-10-20 Toyota Motor Corp フィルタ装置
FR2962919A1 (fr) * 2010-07-26 2012-01-27 Serge Gilbert Andrieu Procede et dispositif de surveillance des filtres a grand volume de liquides en circulation libre dans des canalisations ouvertes, pour commander leur nettoyage avant le colmatage et alerter si ce nettoyage est defaillant
JP2014111284A (ja) * 2012-11-02 2014-06-19 Fanuc Ltd フィルタ洗浄装置を備えた工作機械
EP2745906A1 (fr) * 2012-12-21 2014-06-25 Kurt Gassner Procédé de séparation mécanique de solides dans les eaux usées

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018161688A (ja) * 2017-03-24 2018-10-18 Dmg森精機株式会社 チップコンベアおよび工作機械
CN109702552A (zh) * 2019-02-22 2019-05-03 中原工学院 一种用于机械零部件制造用自动降温装置
CN109702552B (zh) * 2019-02-22 2020-06-30 中原工学院 一种用于机械零部件制造用自动降温装置
JP7483310B2 (ja) 2020-03-09 2024-05-15 株式会社ディスコ 表示システム

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DE112015003896T5 (de) 2017-05-11
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