KR101642509B1 - Cooling Apparatus for Coolant - Google Patents

Cooling Apparatus for Coolant Download PDF

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Publication number
KR101642509B1
KR101642509B1 KR1020150045863A KR20150045863A KR101642509B1 KR 101642509 B1 KR101642509 B1 KR 101642509B1 KR 1020150045863 A KR1020150045863 A KR 1020150045863A KR 20150045863 A KR20150045863 A KR 20150045863A KR 101642509 B1 KR101642509 B1 KR 101642509B1
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KR
South Korea
Prior art keywords
coolant
cutting oil
cooling
pipe
present
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KR1020150045863A
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Korean (ko)
Inventor
최희성
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최희성
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Priority to KR1020150045863A priority Critical patent/KR101642509B1/en
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Publication of KR101642509B1 publication Critical patent/KR101642509B1/en

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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
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/141—Methods or arrangements for maintaining a constant temperature in parts of machine tools using a closed fluid circuit for cooling or heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1069—Filtration systems specially adapted for cutting liquids
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The present invention relates to a cutting oil cooling apparatus for a CNC automatic lathe and, more specifically, relates to a cutting oil cooling apparatus. According to the present invention, cutting oil is supplied to the cutting oil cooling apparatus for a CNC automatic lathe according to the present invention by using an additional circulation pump in a cutting oil tank installed in a CNC automatic lathe to be primarily filtered. The cutting oil cooled by a cooling module according to the present invention is secondarily filtered to spray the cutting oil to a product process unit and a tool of the CNC automatic lathe with high pressure, thereby cooling heat generated in a product process.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a coolant cooler for a CNC automatic lathe. More specifically, the present invention relates to a coolant cooler for a CNC automatic lathe, and more particularly, to a coolant cooler for a CNC automatic lathe using a separate circulation pump, The coolant cooled by the cooling module according to the present invention is subjected to the second-order filtering, and the coolant is sprayed to the product processing portion and the tool of the CNC automatic lathe at a high pressure, And cooling the heat generated during the machining process.

In general, a coolant jetting device of a CNC lathe cools the heat generated when a workpiece fixed to a chucking device is machined into a drill, a bite, an end mill or the like, and smoothes the metal chips generated when the workpiece is machined And discharging the cutting oil to the workpiece and the tool for discharging.

Generally, a coolant is referred to as a coolant, and the coolant refers to the liquid oil used for cutting and cutting metal, which reduces friction and resistance, thereby cooling the heat, increasing the working accuracy, and protecting the tool .

In addition, the cutting oil used in the machine tool is continuously injected and circulated by the pump of the coolant storage tank attached to the side of the machine tool, and the heat and the tool caused by the friction between the tool and the material during the operation of cutting tools such as drill, Thereby preventing abrasion and preventing the material of the material from being changed by heat.

1 is a view showing a conventional coolant supply device.

The conventional coolant supply device is composed of a coolant tank 10 and a machine tool 20. The coolant tank 10 and the machine tool 20 are connected to each other by a coolant transfer pipe 30.

At this time, the cutting oil cools the heat generated when the workpiece is processed through the cutting tool 21 of the machine tool 20 and is sprayed on the workpiece and the cutting tool 21 to prevent breakage of the equipment.

The cutting oil is supplied again to the coolant tank 10 through a cutting process through a cutting oil supply unit 40 provided separately to the lower side of the machine tool 20 together with chips generated in the workpiece, And is then delivered to the machine tool 20 through the pipe 30 to be sprayed onto the workpiece and the cutting tool 21. [

The above-described conventional coolant injection device cools the workpiece and the heat generated in the machine tool 20 when the workpiece is machined, and smoothly discharges chips generated when the workpiece is machined, The accuracy of the machined surface is improved and the service life of the machine tool 20 is extended.

However, since the conventional coolant supply device is not equipped with a device for controlling the temperature of the coolant, a certain amount of coolant is continuously circulated during operation of cutting tools such as drill, tap, and boring by the machine tool, So that the components inside the machine tool are deformed, making it difficult to precisely process the workpiece.

Prior art of a CNC automatic lathe coolant cooling apparatus according to the present invention is disclosed in Patent Registration No. 10-0649152 (entitled " CNC lathe coolant ejection device ", published on Nov. 16, 2006, 2008-0086613 (published on Sep. 26, 2008, entitled " Coolant temperature control system ").

SUMMARY OF THE INVENTION [0005] The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cutting tool which is capable of continuously supplying a coolant during a cutting tool operation by a machine tool, (CNC), which is capable of circulating a coolant having a low temperature by lowering the temperature of the cutting oil through the first and second cooling modules, And an object of the present invention is to provide a coolant cooling apparatus for an automatic lathe.

According to an aspect of the present invention, there is provided a coolant cooling apparatus for a CNC automatic lathe, comprising: a coolant tank for storing coolant; A supply pipe through which the coolant is supplied into the coolant tank; And at least one discharge pipe connected to the supply pipe for discharging the coolant flowing into the supply pipe to the coolant tank; Lt; / RTI >

Wherein each of the discharge pipes is provided with a dish portion capable of containing the cutting oil discharged to the discharge pipe and configured to allow the excess cutting oil to fall down the coolant tank when the capacity of the cutting oil capable of containing the cutting oil is exceeded Lt; / RTI &

The dish portion has a shape of a dish whose upper portion is formed by a rim of a circular shape and the center of which is concave at its lower portion. The cutting portion primarily receives the cutting oil discharged from the discharge pipe. When the cutting oil exceeds the capacity of the dish portion, The temperature of the coolant is cooled as the coolant flows downward along the rim of the upper portion of the coolant,

The coolant tank is provided with one or more cooling pipes through which the coolant tanks pass through in a transverse direction and cool air is introduced through the cooling pipes to cool the temperature of the coolant contacting the cooling pipes With features,

Wherein a surface of the cooling pipe is formed with convexly protruding wrinkles so that the surface area of the cooling pipe contacting the cutting oil is increased.

According to the CNC automatic lathe coolant cooling apparatus according to the present invention, the coolant is supplied from the coolant tank installed in the CNC automatic lathe to the coolant cooling device according to the present invention using a separate circulation pump, The coolant cooled by the cooling module according to the present invention is subjected to the second-order filtering, and then the coolant cooled in the product processing portion and the tool of the CNC automatic lathe can be continuously injected at a high pressure, There is a remarkable effect that the heat can be efficiently cooled.

In addition, due to the characteristics of the CNC automatic lathe, which continuously processes the product by removing the metal chip by spraying the metal chips dried by the tool during the processing using the machine tool or the low-temperature low-temperature coolant, There is a remarkable effect of prevention of thermal displacement of the product due to heat and reduction of the defect rate due to the scratching of the processed portion of the product by the dried metal chip, improvement of the productivity and cost reduction.

2 is a perspective view showing a state in which cutting oil is supplied to a conventional coolant tank.
FIG. 3 is a perspective view of a whole product of a coolant cooling apparatus used in a CNC lathe according to the present invention.
FIG. 4 is an internal perspective view of a module for primarily cooling coolant in a coolant cooling apparatus used in a C & C lathe according to the present invention.
Fig. 5 is an enlarged perspective view of A divided in a circle in Fig. 4. Fig.
FIG. 6 is an internal perspective view of a module for secondarily cooling a coolant in a coolant cooling apparatus used in a C & C rack or the like according to the present invention.
7 is a perspective view of various types of cooling pipes installed in the secondary coolant cooling module of the coolant cooling apparatus according to the present invention.
8 is a cross-sectional view of a second coolant cooling module of a coolant cooling device according to the present invention, in which a corrugated pipe is installed.

2 is a perspective view showing a state in which cutting oil is supplied to a conventional coolant tank.

Referring to FIG. 2, there is no separate coolant cooling module installed in the conventional coolant tank 1.

Therefore, the cutting tool 4 is sprayed from the cutting tool of the machine tool to cool the heat generated by the cutting tool, and the cutting oil 4 used for removing the metal chip is filtered, ), Which is supplied through the circulation process.

For this reason, the temperature of the cutting oil 4 is hardly cooled sufficiently during the circulation of the cutting oil 4, and when the circulating cutting oil 4 is sprayed again on the cutting tool, the temperature of the cutting oil 4 is high. It is difficult to cool the heat generated during metal working.

Particularly, there is a problem that the temperature of the circulating cutting oil 4 is more difficult to fall in the same season as the summer.

FIG. 3 is a perspective view of a whole product of a coolant cooling apparatus used in a CNC lathe according to the present invention.

Referring to FIG. 3, in the coolant cooling apparatus used in the C & C shelf according to the present invention, a coolant and a module for primarily cooling the coolant 4, which is circulated together with the coolant tank 2, A module for secondarily cooling the rough cutting oil 4 is provided.

FIG. 4 is an internal perspective view of an apparatus for primarily cooling cutting oil in a coolant-cooling apparatus used in a CNC lathe according to the present invention.

Referring to FIG. 4, a coolant tank 2 and a module for primarily cooling the coolant are installed in a coolant-cooling device used in a C & C rack or the like according to the present invention.

The module for primarily cooling the coolant includes a supply pipe 5 for supplying the coolant to the inside of the cooling device, a plurality of discharge pipes 7 connected to the supply pipe 5 and having a short length, And the cap is turned upside down so that the cutting oil 4 discharged through the plurality of discharge pipes 7 can not fall downward at a time. And a dish portion 14 connected to and fixed to each of the discharge pipes 7.

The cutting oil 4 flowing along the supply pipe 5 according to the present invention is discharged through a plurality of discharge pipes 7 connected to the supply pipe 5, And then flows over the lower portion of the coolant tank 2 over the upper edge of the dish portion 14. [

When the cutting oil 4 according to the present invention flows beyond the upper edge of the round dish portion 14, the cutting oil 4 is spread thinly along the upper edge of the dish portion 14, The temperature of the cutting oil 4 is easily lowered.

Fig. 5 is an enlarged perspective view of A divided in a circle in Fig. 4. Fig.

5, a predetermined amount of cutting oil 4 may be temporarily stored in a cup-shaped dish portion 14 connected to the lower end of the discharge pipe 7 according to the present invention. However, since the cutting oil 4 is continuously discharged through the outlet 9, the cutting oil 4 contained in the dish portion 14 overflows to the upper edge of the dish portion 14 and flows over the cutting oil tank 2 do.

The cutting oil 2 according to the present invention is not supplied to the coolant tank 2 at a time through the supply pipe 5 as shown in Fig. 2 but spreads evenly along the circular rim of the upper portion of the dish portion 14 And flows down.

As an embodiment, the dish portion 14 according to the present invention may have an oval, quadrangular, or polygonal rim in addition to the circular shape of the upper portion, and the lower portion may be formed flat. In another embodiment, the dish portion 14 of the present invention is formed with a plurality of holes so that the cutting oil 4 contained in the dish portion 14 is not dropped at the same time through the discharge port 7, The temperature of the cutting oil 4 may be lowered more easily while falling down through the holes.

FIG. 6 is an internal perspective view of an apparatus for secondarily cooling a cutting oil in a coolant cooling apparatus used in a C & C lathe according to the present invention.

6, the module for secondary cooling the cutting oil 4 in the coolant cooling apparatus used in the C & C lathes according to the present invention includes a cooling fan 60, a cooling fan 61 cover, and a cooling fan 60 And a cooling pipe 64 through which air flows.

The coolant 4 cooled in the primary cooling module according to the present invention is configured to contact the cooling pipe 64 installed to penetrate the inside of the coolant tank 2 in a state of being stored in the coolant tank 2. [

When the cooling fan 60 according to the present invention is rotated and the cool air is passed through the cooling pipe 64, the temperature of the cooling pipe 64 is lowered and the temperature of the cooling pipe 64 The temperature of the cutting oil 4 is lowered while cooling the cutting oil 4 having passed through the cooling process.

7 is a perspective view of various types of cooling pipes installed in the secondary coolant cooling apparatus of the coolant cooling apparatus according to the present invention.

Referring to FIG. 7, there is a cooling pipe 64 having a circular cut-out shape cut in a direction perpendicular to the longitudinal direction as shown in (a) of the cooling pipe according to the present invention, And a pleated-pipe cooling pipe 66 formed in a screw shape.

Since the corrugated pipe cooling pipe 66 having the corrugated pipe 67 according to the present invention is formed with the corrugation on the surface of the cooling pipe 66, the area of contact with the coolant oil 4 is large, The cooling efficiency is higher than that of the circular cooling pipe 64. [

Although the cooling pipe according to the present invention may have a polygonal shape such as a circular, quadrangular, or pentagonal cross-sectional area, a corrugated tubular cooling pipe 66, It is most effective to lower the temperature of the cutting oil 4.

FIG. 8 is a sectional view of a cooling pipe for a secondary coolant of a coolant cooling apparatus according to the present invention, in which a corrugated pipe cooling pipe is installed.

8, in the secondary coolant cooling module according to the present invention, the outer wall of the corrugated pipe cooling pipe 66 is formed with a plurality of convex and concave corrugations 67, and the area of contact with the coolant 4 is circular It can be seen that it is more effective to cool the temperature of the cutting oil 4 than the cooling pipe 64.

While the preferred embodiments of the present invention have been described above using specific terms, such description is for illustrative purposes only and that various changes and modifications may be made without departing from the spirit and scope of the following claims. Day. Such modified embodiments are not to be understood individually from the spirit and scope of the present invention, but are to be regarded as falling within the scope of the appended claims.

2: Coolant tank 4: Coolant oil
5: supply pipe 7: discharge pipe
9: outlet 14:
60: cooling fan 61: cooling fan cover
64: Cylindrical cooling pipe 66: Corrugated pipe cooling pipe
67: Wrinkles

Claims (4)

delete A coolant tank in which coolant is stored;
A supply pipe through which the coolant is supplied into the coolant tank;
At least one discharge pipe connected to the supply pipe for discharging the coolant flowing into the supply pipe to the coolant tank;
Wherein each of the discharge pipes is provided with a dish portion configured to allow the excess cutting oil to fall down the coolant tank when the capacity of the cutting oil capable of containing the cutting oil is exceeded,
The dish portion has a shape of a dish whose upper portion is formed by a rim of a circular shape and the center of which is concave at its lower portion. The cutting portion primarily receives the cutting oil discharged from the discharge pipe. When the cutting oil exceeds the capacity of the dish portion, Wherein the coolant flows in a downward direction along a rim of an upper portion of the coolant, and the temperature of the coolant is cooled.
3. The method of claim 2,
The coolant tank is provided with one or more cooling pipes through which the coolant tanks pass through in a transverse direction and cool air is introduced through the cooling pipes to cool the temperature of the coolant contacting the cooling pipe Features coolant cooling system.
The method of claim 3,
Wherein a surface of the cooling pipe is formed with convexly protruding wrinkles on the surface of the cooling pipe, thereby increasing the surface area of the cooling pipe contacting the cutting oil.
KR1020150045863A 2015-04-01 2015-04-01 Cooling Apparatus for Coolant KR101642509B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200002350U (en) 2019-04-16 2020-10-26 주식회사 두리에프에스 Metalworking fluid refine device
CN112589523A (en) * 2021-01-11 2021-04-02 南京平优建科技有限公司 Temperature-sensing iron chip briquetting device for regulating and controlling spraying of cooling liquid
CN114505727A (en) * 2022-01-11 2022-05-17 范婷婷 Cooling circulation system of metal processing machine and cooling method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100649152B1 (en) 2004-07-14 2006-11-24 벧엘기계(주) The jet apparatus of the cutting oil with the CNC lathe
JP2013018057A (en) * 2011-07-07 2013-01-31 Mitsubishi Heavy Ind Ltd Circulating liquid filtering device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100649152B1 (en) 2004-07-14 2006-11-24 벧엘기계(주) The jet apparatus of the cutting oil with the CNC lathe
JP2013018057A (en) * 2011-07-07 2013-01-31 Mitsubishi Heavy Ind Ltd Circulating liquid filtering device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200002350U (en) 2019-04-16 2020-10-26 주식회사 두리에프에스 Metalworking fluid refine device
CN112589523A (en) * 2021-01-11 2021-04-02 南京平优建科技有限公司 Temperature-sensing iron chip briquetting device for regulating and controlling spraying of cooling liquid
CN112589523B (en) * 2021-01-11 2022-11-18 江西爱贝科技有限公司 Temperature-sensing iron chip briquetting device for regulating and controlling spraying of cooling liquid
CN114505727A (en) * 2022-01-11 2022-05-17 范婷婷 Cooling circulation system of metal processing machine and cooling method thereof

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