Cooling liquid cooling device for numerical control machine tool

Abstract

The utility model relates to a cooling liquid cooling device for a numerical control machine tool. According to the technical scheme, two partition plates are arranged in a cooling tank in a vertically sealed mode, a filter assembly is arranged on the upper portion of the partition plate on the upper side and comprises a conical filter screen cylinder, and the top of the conical filter screen cylinder is fixedly connected with an output shaft of a motor installed on the upper side wall of the cooling tank; the cooling assembly comprises a spiral flow guide groove, the upper portion of the center end of the spiral flow guide groove is communicated with the first pipeline, the lower portion of the spiral flow guide groove is installed on the cold face of a semiconductor refrigeration plate, and the lower portion of the semiconductor refrigeration plate is installed on the upper portions of cooling fins. The lower portions of the cooling fins are installed on the cooling fan, the cooling fan is installed on the lower side partition plate, and the lower portion of the tail end of the edge of the spiral flow guide groove communicates with the space of the lower portion of the lower side partition plate through a second pipeline. The utility model has the beneficial effects that multiple modes are matched, the filtering efficiency is improved, and the excessive refrigeration energy consumption waste is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of coolant cooling, and relates to a coolant cooling device for CNC machine tools. Background Technology

[0002] CNC machine tool coolant can extend tool life; ensure and improve workpiece dimensional accuracy; improve workpiece surface finish; promptly remove metal chips to ensure smooth cutting; quickly and evenly cool tools and workpieces by removing cutting heat; prevent corrosion and rust on machine tools and workpieces; improve cutting efficiency and reduce costs. Existing coolant cooling devices have a single filtration mode and poor filtration effect. Furthermore, the coolant cooling path is relatively short, resulting in low utilization of the thermoelectric cooling plate and high energy efficiency.

[0003] Therefore, this utility model provides a cooling device for CNC machine tool coolant to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a cooling device for CNC machine tool coolant. The technical solution adopted is as follows: a cooling tank is included, and two partitions are sealed inside the cooling tank. A filter assembly is arranged in the space above the upper partition. The filter assembly includes a conical filter cylinder with its top rotatably inserted into the center hole of the upper side wall of the cooling tank. The top of the conical filter cylinder is fixedly connected to the output shaft of a motor installed on the upper side wall of the cooling tank. The center opening of the upper partition is connected to the cooling assembly arranged in the space above the lower partition through a first pipe. An electromagnetic valve is installed on the first pipe. The cooling assembly includes a spiral guide groove. The upper part of the center end of the spiral guide groove is connected to the first pipe. The lower part of the spiral guide groove is installed on the cold surface of a semiconductor refrigeration plate. The lower part of the semiconductor refrigeration plate is installed on the upper part of the heat dissipation fins. The lower part of the heat dissipation fins is installed on a cooling fan. The cooling fan is installed on the lower partition. The lower part of the edge end of the spiral guide groove is connected to the space below the lower partition through a second pipe.

[0005] As a preferred embodiment of this utility model, a liquid injection hole is provided on the left side of the upper side wall of the cooling tank.

[0006] As a preferred embodiment of this utility model, the inner circumference of the tank at the upper part of the partition is provided with fixed ears arranged in a circumferential array, and a magnetic rod is movably inserted into the fixed ears; by using the magnetic rod, iron filings and magnetic impurities in the coolant can be adsorbed onto the magnetic rod due to centrifugal force during the rotation of the conical filter cylinder, thereby effectively filtering the coolant.

[0007] As a preferred embodiment of this utility model, rectangular exhaust slots are respectively opened on the tank walls on the left and right sides of the heat dissipation fins; by opening rectangular exhaust slots, it is convenient to dissipate the heat inside the heat dissipation fins into the outside air.

[0008] As a preferred embodiment of this utility model, the lower part of the conical filter cylinder is in sliding contact with the surface of the upper partition plate; this design facilitates the blocking of impurities and iron filings outside the conical filter cylinder, preventing them from entering the cooling assembly through the first pipe.

[0009] As a preferred embodiment of this utility model, a temperature sensor is inserted into the lower edge of the right side wall of the cooling tank, and the tank wall below the temperature sensor is connected to the inlet pipe of the circulating pump.

[0010] The beneficial effects of this utility model are as follows: by combining a conical filter cylinder and a magnetic rod, centrifugal filtration and separation of magnetic impurities are achieved, breaking through the limitations of a single filtration mode and improving filtration efficiency; by combining a spiral guide groove with a semiconductor refrigeration plate, the flow path of the coolant is extended, the utilization rate of the cold surface of the semiconductor refrigeration plate is improved, and the cooling effect is enhanced; by using a temperature sensor to monitor the coolant temperature in real time, the power of the semiconductor refrigeration plate is controlled, avoiding excessive cooling and energy waste. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the filter assembly of this utility model;

[0013] Figure 3 This is a cross-sectional view of the cooling component of this utility model.

[0014] In the diagram: 1-Cooling tank, 2-Filter assembly, 3-Cooling assembly, 4-Temperature sensor, 5-Circulation pump, 11-Baffle plate, 12-First pipe, 13-Second pipe, 14-Injection hole, 15-Fixing lug, 16-Rectangular exhaust duct, 21-Conical filter cylinder, 22-Motor, 23-Magnetic rod, 31-Spiral guide channel, 32-Semiconductor cooling plate, 33-Heat dissipation fins, 34-Cooling fan. Detailed Implementation

[0015] Example 1: As Figures 1 to 3As shown, the present invention discloses a cooling device for CNC machine tool coolant. The device comprises a cooling tank 1 with two sealed partitions 11 inside. A drain pipe with a valve is located on the upper left side of the tank wall of the upper partition 11. A filter assembly 2 is installed in the space above the upper partition 11. The filter assembly 2 includes a conical filter cylinder 21, the top of which is rotatably inserted into the center hole of the upper wall of the cooling tank 1. The lower part of the conical filter cylinder 21 slides in contact with the surface of the upper partition 11. The top of the conical filter cylinder 21 is fixedly connected to the output shaft of a motor 22 mounted on the upper wall of the cooling tank 1. A magnetic rod 23 is movably inserted into a fixing lug 15. The center opening of the upper partition 11 is connected to a cooling assembly 3 located in the upper space of the lower partition 11 via a first pipe 12. An electromagnetic valve is installed on the first pipe 12. 3 includes a spiral guide channel 31, the upper part of the center end of the spiral guide channel 31 is connected to the first pipe 12, the lower part of the spiral guide channel 31 is installed on the cold surface of the semiconductor cooling plate 32, the lower part of the semiconductor cooling plate 32 is installed on the upper part of the heat dissipation fins 33, the lower part of the heat dissipation fins 33 is installed on the cooling fan 34, the cooling fan 34 is installed on the lower partition 11, the lower part of the edge end of the spiral guide channel 31 is connected to the space below the lower partition 11 through the second pipe 13, the left side of the upper side wall of the cooling tank 1 has a liquid injection hole 14, the inner circumference of the tank body above the upper partition 11 is provided with a circumferential array of fixing ears 15, the tank body walls on the left and right sides of the heat dissipation fins 33 are respectively provided with rectangular exhaust slots 16, the lower edge of the right side wall of the cooling tank 1 is inserted with a temperature sensor 4, and the tank body wall below the temperature sensor 4 is connected to the liquid inlet pipe of the circulation pump 5.

[0016] The working principle of this utility model is as follows: The coolant of the CNC machine tool is introduced into the injection hole 14 at the top of the cooling tank 1 through the pipeline. The motor 22 is started, and the motor 22 drives the conical filter cylinder 21 to rotate. The conical filter cylinder 21 drives the coolant in the upper space of the upper partition 11 to undergo centrifugal motion. The centrifugal force pushes the impurities in the coolant to gather on the cylinder wall. Magnetic impurities are attracted by the magnetic rods on the cylinder wall. The filtered coolant flows downward into the spiral guide groove 31 of the cooling component 3 through the first pipeline 12. After spiraling in the spiral guide groove 31, its heat is fully exchanged with the cold surface of the lower semiconductor refrigeration plate 32, thereby achieving full cooling of the coolant. The cooled coolant flows downward into the tank body under the lower partition 11 through the second pipeline 13. The temperature of the coolant is monitored by the temperature sensor 4, and the power of the semiconductor refrigeration plate 32 is adjusted in real time to ensure that the temperature of the cooled coolant is constant. Finally, the cooled coolant is pumped out by the circulation pump 5 and reintroduced into the machine tool through the pipeline for use.

[0017] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0018] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A cooling device for CNC machine tool coolant, characterized in that: The system includes a cooling tank (1), which has two sealed partitions (11) inside. A filter assembly (2) is installed in the space above the upper partition (11). The filter assembly (2) includes a conical filter cylinder (21) with its top rotatably inserted into the center hole of the upper side wall of the cooling tank (1). The top of the conical filter cylinder (21) is fixedly connected to the output shaft of a motor (22) installed on the upper side wall of the cooling tank (1). The center opening of the upper partition (11) is connected to a cooling assembly (3) installed in the upper space of the lower partition (11) through a first pipe (12). The first pipe (12) is equipped with a cooling assembly (3). The cooling assembly (3) includes a spiral guide groove (31), the upper part of the center end of the spiral guide groove (31) is connected to the first pipe (12), the lower part of the spiral guide groove (31) is installed on the cold surface of the semiconductor cooling plate (32), the lower part of the semiconductor cooling plate (32) is installed on the upper part of the heat dissipation fins (33), the lower part of the heat dissipation fins (33) is installed on the cooling fan (34), the cooling fan (34) is installed on the lower partition (11), and the lower part of the edge end of the spiral guide groove (31) is connected to the space below the lower partition (11) through the second pipe (13).

2. The cooling device for CNC machine tool coolant according to claim 1, characterized in that: A liquid injection hole (14) is provided on the left side of the upper side wall of the cooling tank (1).

3. The cooling device for CNC machine tool coolant according to claim 1, characterized in that: The upper part of the partition (11) has a fixed ear (15) arranged in a circumferential array on the inner wall of the tank. A magnetic rod (23) is movably inserted into the fixed ear (15).

4. The cooling device for CNC machine tool coolant according to claim 1, characterized in that: Rectangular exhaust slots (16) are respectively opened on the tank wall on the left and right sides of the heat dissipation fins (33).

5. The cooling device for CNC machine tool coolant according to claim 1, characterized in that: The lower part of the conical filter cylinder (21) slides in contact with the surface of the upper partition (11).

6. The cooling device for CNC machine tool coolant according to claim 1, characterized in that: A temperature sensor (4) is inserted into the lower edge of the right side wall of the cooling tank (1), and the tank wall below the temperature sensor (4) is connected to the inlet pipe of the circulating pump (5).

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