A cooling liquid cooling device for CNC machine tools

Abstract

The invention discloses a cooling device for a CNC machine tool, and relates to the technical field of heat exchange and cooling, comprising a cooler, wherein one side of the cooler is fixedly connected with a fixed mesh cover, an inner wall of the fixed mesh cover is fixedly connected with a motor, one side of the cooler is fixedly connected with a cooling liquid connecting pipe A and a cooling liquid connecting pipe B, an output end of the motor is fixedly connected with a blade, and an oil removal mechanism is arranged inside the cooler. By arranging the oil removal mechanism, after the bottom of the runner is dipped into the floating oil, the oil naturally adheres to the runner due to the large viscosity of the oil and the small viscosity of the coolant. As the runner rotates clockwise for one circle to the arc plate, it is blocked by the baffle plate and then the outer wall of the runner is brushed by the brush strip on the arc plate, and the grease attached to the outer wall of the runner is brushed onto the brush strip, and then the grease on the brush strip slowly falls along the outer wall of the brush strip to the arc plate and is supported by the baffle plate, thereby completing the separation and collection of the oil and the coolant.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange and cooling, in particular to a cooling liquid cooling device for a numerically controlled machine tool. Background Art

[0002] Coolant, also known as antifreeze, antifreeze, water tank treasure, etc. The main function is to protect the normal and good operation of the engine. It circulates in the engine water tank to prevent freezing, boiling, rust and corrosion. Most antifreeze is red or green in color to observe whether it is leaking or to distinguish it from other liquids in the engine to avoid confusion.

[0003] A cooling device for a coolant used in a numerically controlled machine tool described in a patent application with a publication number of CN220187507U comprises a box device for temporarily storing a coolant, and also comprises a trailer device for carrying movement arranged at the bottom of the box device, and a circulation device for promoting the circulation and cooling of the coolant is arranged at one end of the box device; the trailer device comprises a support plate, two universal wheels are symmetrically mounted at the bottom of the support plate, two directional wheels are symmetrically mounted on one side of the universal wheel, and a push rod rack is arranged at one end of the support plate; the circulation device comprises a serpentine tube, a submersible pump is mounted at the bottom of the serpentine tube, and a filter head is mounted on the submersible pump;

[0004] When using CNC machine tools, the circulation of coolant is required to dissipate the heat at the high temperature core of the CNC machine tools. When the coolant circulates for a long time for cooling, due to the problem of long-term sealing, oil leakage is inevitable in the cooling equipment and the CNC machine tools. Some of the oil will leak into the coolant, and when the coolant circulates, it will eventually float on the top layer in the coolant tank, accumulating more and more, thus affecting the coolant effect and circulation efficiency to a certain extent. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a coolant cooling device for a CNC machine tool, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A coolant cooling device for a CNC machine tool, comprising a cooler, one side of the cooler is fixedly connected to a fixed mesh cover, the inner wall of the fixed mesh cover is fixedly connected to a motor A, one side of the cooler is fixedly connected to a coolant connecting pipe A and a coolant connecting pipe B, the output end of the motor A is fixedly connected to a blade, and an oil removal mechanism is provided inside the cooler;

[0007] The oil removal mechanism comprises:

[0008] A liquid storage tank, the liquid storage tank is a square frame structure, the liquid storage tank is fixedly connected to the bottom of the inner wall of the cooler, a circular groove is opened on one side of the liquid storage tank, a heat conducting plate is fixedly connected to the inner wall of the circular groove, a heat conducting column is fixedly connected to one side of the heat conducting plate, and the liquid storage tank is used to fill the coolant and centrally dissipate the heat of the coolant;

[0009] The arc cover A is a semicircular frame structure, the bottom of the arc cover A is fixedly connected to the top of the cooler, one side of the arc cover A is fixedly connected to a motor B, the output end of the motor B is fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a rotating wheel, and the arc cover A is used to provide space for the rotating wheel to rotate.

[0010] Preferably, a groove is formed on the outer wall of the rotating wheel, arc plates are fixedly connected to both sides of the inner wall of the arc cover A, a brush strip is fixedly connected to the top of the arc plate, and a baffle is fixedly connected to the bottom of the arc plate.

[0011] Preferably, the inclined plate is used to scrape off the oil on the side of the impeller, and one side of the inclined plate is fixedly connected to an arc cover B, and one side of the arc cover B is fixedly connected to one side of the inner wall of the arc cover A, and the arc cover B is used to collect the scraped oil.

[0012] Preferably, the outer wall of the rotating wheel is provided with a cleaning and collecting mechanism, and the cleaning and collecting mechanism comprises a fixing plate, the outer wall of the fixing plate is fixedly connected to the inner wall of the groove, and the outer wall of the fixing plate is fixedly connected with an elastic strip.

[0013] Preferably, one end of the elastic strip is fixedly connected to a scraper, the outer wall of the scraper is slidably connected to the inner wall of the groove, one side of the scraper is fixedly connected to a magnetic block B, one side of the magnetic block B contacts a magnetic block A, and one side of the magnetic block A is fixedly connected to one side of the fixed plate.

[0014] Preferably, the magnetic block A and the magnetic block B are magnetic, the magnetism of the magnetic block A and the magnetic block B on the opposite side is that opposite poles attract each other, and an elastic pull rope is fixedly connected to one side of the scraper.

[0015] Preferably, one end of the elastic pull rope is fixedly connected to a counterweight magnet, one side of the counterweight magnet is fixedly connected to a sliding plate, the inner wall of the sliding plate is slidably connected to a fixing bar, a circular groove is provided on the inner wall of the arc cover A, and one side of the fixing bar is slidably connected to the inner wall of the circular groove.

[0016] Preferably, the inner wall of the groove is fixedly connected to a limit plate, and a small hole is opened on the inner wall of the limit plate, and the small hole is used to allow the elastic pull rope to pass through. The outer wall of the fixing bar is fixedly connected to a magnetic stopper, and the magnetic stopper and the counterweight magnet are magnetic, and the magnetism of the magnetic stopper and the counterweight magnet on the opposite side is that opposite poles attract each other. One end of the fixing bar is fixedly connected to a connecting shaft, and one end of the connecting shaft is fixedly connected to one side of the rotating wheel.

[0017] The present invention provides a cooling liquid cooling device for a CNC machine tool, which has the following beneficial effects:

[0018] 1. The present invention sets an oil removal mechanism to dip the oil floating on the top layer of the coolant onto the outer wall of the runner. The runner rotates clockwise. After the bottom of the runner is dipped into the floating oil, the oil naturally adheres to the runner due to the high viscosity of the oil and the low viscosity of the coolant. As the runner rotates one circle clockwise to the arc plate, it is blocked and scraped off by the baffle and then brushed against the outer wall of the runner by the brush strip on the arc plate. The grease attached to the outer wall of the runner is brushed onto the brush strip, and then the grease on the brush strip slowly falls along the outer wall of the brush strip to the arc plate and is supported by the baffle, thereby completing the separation and collection of the oil and the coolant.

[0019] 2. The present invention provides an oil removal mechanism, and increases the surface area of ​​the outer wall of the runner through the grooves provided on the outer wall of the runner. Then, when the runner contacts the oil floating on the coolant, the oil will enter the outer wall of the runner and the inner wall of the groove, and then quickly attach a large amount of floating oil to the outer wall of the runner, thereby ensuring its efficient oil treatment function;

[0020] 3. The present invention provides an oil removal mechanism, and the wheel and the groove form a step shape. The step-shaped height difference will move the coolant inside the liquid storage tank, so that the oil in the upper layer will be moved by the rotation of the wheel and approach the wheel, effectively avoiding the problem that the oil floating on the top layer of the liquid storage tank remains stationary in the corner of the liquid storage tank and cannot be dipped by the wheel, thereby ensuring the stability of oil treatment.

[0021] 4. The present invention sets a cleaning and collecting mechanism. When the oil is quickly scraped by the scraper to the limit plate, the scraper is blocked and limited by the limit plate, and the oil slides along the bottom of the inner wall of the groove to the side of the wheel due to inertia. At this time, the groove that the elastic pull rope pulls the scraper to clean is the groove above the wheel at this time, so that the oil will be located above the side of the wheel, and with the rotation of the wheel, it will be scraped by the inclined plate to the inside of the arc cover B for storage, thereby completing the storage and cleaning of the oil, and can also clean the oil attached to the inner wall of the groove, to ensure that the subsequent rotation of the wheel will not affect the cleaning effect of the oil, thereby achieving stable oil removal work.

[0022] 5. The present invention sets a cleaning and collecting mechanism. Since a counterweight magnet pulls four elastic pull ropes and scrapers, each sliding plate will drop when it is at the vertical top of the fixed bar, and then pull the four scrapers in the groove above, thereby ensuring that the oil flows stably from the side above the wheel at this time, and is uniformly scraped off by the arc cover B in the subsequent rotation direction of the wheel, avoiding the problem of oil turbulence and ensuring that the oil treatment is stable and controllable when the wheel rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure explosion of the present invention;

[0026] Figure 4 The structure of the oil removal mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 5 The structure of the oil removal mechanism of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 6 It is a structural schematic diagram of the arc cover of the present invention;

[0029] Figure 7 It is a schematic cross-sectional structure diagram of the oil removal mechanism of the present invention;

[0030] Figure 8 The structure of the oil removal mechanism of the present invention is shown in FIG. Figure 3 ;

[0031] Fig. 9 It is a schematic diagram of the disassembled structure of the oil removal mechanism of the present invention;

[0032] Fig.10 The motion state of the oil removal mechanism of the present invention is shown in FIG. Figure 1 ;

[0033] Fig.11 The motion state of the oil removal mechanism of the present invention is shown in FIG. Figure 2 ;

[0034] Fig.12 For the present invention Figure 8 A magnified image of point A;

[0035] Fig.13 For the present invention Figure 8 A magnified view of point B;

[0036] Fig.14The structure diagram of the cleaning and collecting mechanism of the present invention is shown in FIG. Figure 1 ;

[0037] Fig.15 The structure diagram of the cleaning and collecting mechanism of the present invention is shown in FIG. Figure 2 ;

[0038] Fig.16 The structure diagram of the cleaning and collecting mechanism of the present invention is shown in FIG. Figure 3 .

[0039] In the figure: 1 coolant connecting pipe A, 2 cooler, 3 oil removal mechanism, 301 liquid storage tank, 302 arc cover A, 303 motor B, 304 rotating shaft, 305 rotating wheel, 307 groove, 308 arc plate, 309 brush strip, 310 inclined plate, 311 arc cover B, 312 baffle, 4 clearing and collecting mechanism, 401 fixed plate, 402 elastic strip, 403 scraper, 404 magnetic block A, 405 magnetic block B, 406 elastic pull rope, 407 limit plate, 408 counterweight magnetic block, 409 sliding plate, 410 fixed strip, 411 magnetic block, 412 connecting shaft, 413 circular groove, 5 coolant connecting pipe B, 6 fixed mesh cover, 7 motor A, 8 heat conducting column, 9 heat conducting plate, 10 blade. DETAILED DESCRIPTION

[0040] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a cooling liquid cooling device for a numerically controlled machine tool, comprising a cooler 2, a fixed mesh cover 6 is fixedly connected to one side of the cooler 2, a motor A7 is fixedly connected to the inner wall of the fixed mesh cover 6, a coolant connecting pipe A1 and a coolant connecting pipe B5 are fixedly connected to one side of the cooler 2, a blade 10 is fixedly connected to the output end of the motor A7, and an oil removal mechanism 3 is arranged inside the cooler 2;

[0041] The oil removal mechanism 3 comprises:

[0042] Liquid storage tank 301, liquid storage tank 301 is a square frame structure, liquid storage tank 301 is fixedly connected to the bottom of the inner wall of cooler 2, a circular groove is opened on one side of liquid storage tank 301, a heat conducting plate 9 is fixedly connected to the inner wall of the circular groove, and a heat conducting plate 8 is fixedly connected to one side of the heat conducting plate 9, and liquid storage tank 301 is used to fill coolant and concentrate the heat dissipation of coolant;

[0043] The arc cover A302 is a semicircular frame structure. The bottom of the arc cover A302 is fixedly connected to the top of the cooler 2. A motor B303 is fixedly connected to one side of the arc cover A302. A rotating shaft 304 is fixedly connected to the output end of the motor B303. A rotating wheel 305 is fixedly connected to one end of the rotating shaft 304. The arc cover A302 is used to provide space for the rotating wheel 305 to rotate.

[0044] When in use, the coolant in the liquid storage tank 301 inside the cooler 2 completes the cooling and lowering effect on the CNC machine tool during the process of circulating in and out through the coolant connecting pipe A1 and the coolant connecting pipe B5. Since the heat conducting plate 9 extends into the liquid storage tank 301, the coolant entering the liquid storage tank 301 will conduct heat to the heat conducting plate 9 and the heat conducting column 8, and then the motor A7 is started at the same time to control the rotation of the blade 10. The rotation of the blade 10 quickly extracts the heat from the heat conducting column 8 and the heat conducting plate 9, completes the real-time heat dissipation of the heat conducting plate 9 and the heat conducting column 8, and finally completes the water cooling effect on the CNC machine tool;

[0045] Example 2: Please refer to Figure 1-11 On the basis of the first embodiment, the present invention provides a technical solution: a groove 307 is opened on the outer wall of the rotating wheel 305, arc plates 308 are fixedly connected to both sides of the inner wall of the arc cover A302, a brush strip 309 is fixedly connected to the top of the arc plate 308, and a baffle 312 is fixedly connected to the bottom of the arc plate 308.

[0046] The inclined plate 310 is used to scrape the oil on the side of the runner 305. A curved cover B311 is fixedly connected to one side of the inclined plate 310. One side of the curved cover B311 is fixedly connected to one side of the inner wall of the curved cover A302. The curved cover B311 is used to collect the scraped oil.

[0047] When the coolant slowly circulates through the liquid storage tank 301, the motor B303 is started to control the rotation of the shaft 304, and the shaft 304 drives the wheel 305 to rotate. When the wheel 305 rotates, the bottom of the wheel 305 will contact the coolant on the top layer of the liquid storage tank 301, and as the wheel 305 rotates, the oil floating on the top layer of the coolant is dipped onto the outer wall of the wheel 305. The wheel 305 rotates clockwise. After the bottom of the wheel 305 is dipped into the floating oil, the coolant is The viscosity of the liquid is small, so the oil naturally adheres to the runner 305. As the runner 305 rotates clockwise for one circle to the arc plate 308, it is blocked and scraped off by the baffle 312, and then the brush strip 309 on the arc plate 308 brushes the outer wall of the runner 305, brushing the grease attached to the outer wall of the runner 305 onto the brush strip 309, and then the grease on the brush strip 309 slowly falls along the outer wall of the brush strip 309 to the arc plate 308 and is supported by the baffle 312, thereby completing the separation and collection of the oil and the coolant;

[0048] The groove 307 provided on the outer wall of the runner 305 increases the surface area of ​​the outer wall of the runner 305. When the runner 305 contacts the oil floating on the coolant, the oil enters the outer wall of the runner 305 and the inner wall of the groove 307, and then quickly attaches a large amount of floating oil to the outer wall of the runner 305, thereby ensuring its efficient oil treatment function. The runner 305 and the groove 307 form a step-like shape. The step-like drop will move the coolant inside the liquid storage tank 301, so that the oil on the upper layer will be moved and approached to the runner 305 by the rotation of the runner 305, effectively avoiding the problem that the oil floating on the top layer of the liquid storage tank 301 remains stationary in the corner of the liquid storage tank 301 and cannot be dipped by the runner 305, thereby ensuring the stability of the oil treatment.

[0049] The oil on both sides of the runner 305 will also be scraped onto the arc cover B311 by the inclined plate 310 when the runner 305 rotates, and the inclined plate 310 and both sides of the arc cover B311 are pressed against the runner 305 and the inner wall of the arc cover A302, forming a U-shaped space for collecting the oil, completing the scraping of both sides of the runner 305 and the collection and storage of the oil;

[0050] Example 3: Please refer to Figure 1-16 On the basis of the first and second embodiments, the present invention provides a technical solution: a cleaning and collecting mechanism 4 is provided on the outer wall of the rotating wheel 305, and the cleaning and collecting mechanism 4 includes a fixing plate 401, and the outer wall of the fixing plate 401 is fixedly connected to the inner wall of the groove 307, and the outer wall of the fixing plate 401 is fixedly connected to an elastic strip 402.

[0051] One end of the elastic strip 402 is fixedly connected to a scraper 403, the outer wall of the scraper 403 is slidably connected to the inner wall of the groove 307, one side of the scraper 403 is fixedly connected to a magnet B405, one side of the magnet B405 contacts a magnet A404, and one side of the magnet A404 is fixedly connected to one side of the fixed plate 401.

[0052] The magnet block A404 and the magnet block B405 are magnetic, and the magnetism of the magnet block A404 and the magnet block B405 on the opposite side is that opposite poles attract each other. An elastic pull rope 406 is fixedly connected to one side of the scraper 403.

[0053] One end of the elastic pull rope 406 is fixedly connected to a counterweight magnet 408, one side of the counterweight magnet 408 is fixedly connected to a sliding plate 409, the inner wall of the sliding plate 409 is slidably connected to a fixing bar 410, a circular groove 413 is opened on the inner wall of the arc cover A302, and one side of the fixing bar 410 is slidably connected to the inner wall of the circular groove 413.

[0054] The inner wall of the groove 307 is fixedly connected to a limit plate 407, and a small hole is opened on the inner wall of the limit plate 407 for the elastic drawstring 406 to pass through. The outer wall of the fixing bar 410 is fixedly connected to a magnetic stopper 411, and the magnetic stopper 411 and the counterweight magnet block 408 are magnetic, and the magnetic stopper 411 and the counterweight magnet block 408 have opposite poles that attract each other. One end of the fixing bar 410 is fixedly connected to a connecting shaft 412, and one end of the connecting shaft 412 is fixedly connected to one side of the rotating wheel 305.

[0055] When the rotating wheel 305 rotates, the rotating wheel 305 will drive the connecting shaft 412 on one side to rotate synchronously with the fixing bar 410. One end of the connecting shaft 412 and the outer wall of the fixing plate 401 rotate in the inner wall of the circular groove 413. The circular groove 413 is provided on one side of the inner wall of the arc cover A302. When one of the five fixing bars 410 rotates to a vertical state above the connecting shaft 412, the sliding plate 409 on the fixing bar 410 will be separated from the magnetic attraction of the counterweight magnetic block 408 and the magnetic stopper 411 under the counterweight of the counterweight magnetic block 408. At this time, the vertical In this state, the gravity of the counterweight magnet 408 and the sliding plate 409 is greater than the magnetic attraction between the counterweight magnet 408 and the magnetic stopper 411, so that the sliding plate 409 starts to slide down quickly on the outer wall of the fixed bar 410, thereby pulling the elastic pull rope 406 to deform, and the elastic pull rope 406 is pulled to the scraper 403 through the limit plate 407 until the sliding plate 409 completely falls to the bottom of the fixed bar 410. At this time, the force of the elastic pull rope 406 being pulled to deform is greater than the magnetic attraction between the magnet B405 and the magnet A404 on the scraper 403, so that the magnet B405 is separated from the scraper 403. Due to the magnetic attraction between the magnets A404, the elastic rope 406 that is pulled tight quickly rebounds with the scraper 403 and the magnet B405, so that the scraper 403 quickly slides in the inner wall of the groove 307 to the position of the limit plate 407, and the oil adhered to the inner wall of the groove 307 is hung on the side of the rotating wheel 305. The bottom of the limit plate 407 does not contact the bottom of the inner wall of the groove 307. Therefore, when the oil is quickly scraped by the scraper 403 to the limit plate 407, the scraper 403 is blocked and limited by the limit plate 407, and the oil moves along the groove 307 due to inertia. The bottom of the inner wall slides down to the side of the rotating wheel 305, and at this time, the groove 307 cleaned by the scraper 403 pulled by the elastic pull rope 406 is the groove 307 above the rotating wheel 305, so that the oil will be located above the side of the rotating wheel 305, and with the rotation of the rotating wheel 305, it will be scraped by the inclined plate 310 to the inside of the arc cover B311 for storage, thereby completing the storage and cleaning of the oil, and can also clean up the oil attached to the inner wall of the groove 307, ensuring that the subsequent rotation of the rotating wheel 305 will not affect the cleaning effect of the oil, thereby achieving stable oil removal work;

[0056] Since one weighted magnetic block 408 pulls four elastic ropes 406 and scrapers 403, each sliding plate 409 will drop down at the vertical top of the fixed bar 410, and then pull the four scrapers 403 in the groove 307 above, so as to ensure that the oil flows stably from the side above the rotating wheel 305 at this time, and is uniformly scraped off by the arc cover B311 in the subsequent rotation direction of the rotating wheel 305, avoiding the problem of oil turbulence, and ensuring that the treatment of the oil is stable and controllable when the rotating wheel 305 rotates;

[0057] When the fixed bar 410 moves ninety degrees and starts to tilt downward, the sliding plate 409 and the counterweight magnet 408 will begin to slide to the end of the fixed bar 410 due to their own gravity, thereby quickly loosening the elastic pull rope 406. Since the elastic pull rope 406 no longer pulls the scraper 403, the scraper 403 is easily pulled back to its original position by the elastic force of the elastic bar 402, completing the automatic return of the scraper 403.

[0058] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling liquid cooling device for a numerically controlled machine tool, comprising a cooler (2), a fixed mesh cover (6) fixedly connected to one side of the cooler (2), a motor A (7) fixedly connected to the inner wall of the fixed mesh cover (6), a coolant connecting pipe A (1) and a coolant connecting pipe B (5) fixedly connected to one side of the cooler (2), and a blade (10) fixedly connected to the output end of the motor A (7), characterized in that: An oil removal mechanism (3) is provided inside the cooler (2); The oil removal mechanism (3) comprises: A liquid storage tank (301), the liquid storage tank (301) being a square frame structure, the liquid storage tank (301) being fixedly connected to the bottom of the inner wall of the cooler (2), a circular groove being provided on one side of the liquid storage tank (301), a heat conducting plate (9) being fixedly connected to the inner wall of the circular groove, a heat conducting column (8) being fixedly connected to one side of the heat conducting plate (9), the liquid storage tank (301) being used to load coolant and to dissipate the heat of the coolant in a centralized manner; An arc-shaped cover A (302), wherein the arc-shaped cover A (302) is a semicircular frame-shaped structure, the bottom of the arc-shaped cover A (302) is fixedly connected to the top of the cooler (2), one side of the arc-shaped cover A (302) is fixedly connected to a motor B (303), the output end of the motor B (303) is fixedly connected to a rotating shaft (304), one end of the rotating shaft (304) is fixedly connected to a rotating wheel (305), and the arc-shaped cover A (302) is used to provide space for the rotating wheel (305) to rotate; The outer wall of the rotating wheel (305) is provided with a groove (307), the outer wall of the rotating wheel (305) is provided with a cleaning and collecting mechanism (4), the cleaning and collecting mechanism (4) comprises a fixing plate (401), the outer wall of the fixing plate (401) is fixedly connected to the inner wall of the groove (307), and the outer wall of the fixing plate (401) is fixedly connected to an elastic strip (402); One end of the elastic strip (402) is fixedly connected to a scraper (403), the outer wall of the scraper (403) is slidably connected to the inner wall of the groove (307), one side of the scraper (403) is fixedly connected to a magnetic block B (405), one side of the magnetic block B (405) contacts a magnetic block A (404), and one side of the magnetic block A (404) is fixedly connected to one side of the fixed plate (401); The magnetic block A (404) and the magnetic block B (405) are magnetic, and the magnetism of the opposite sides of the magnetic block A (404) and the magnetic block B (405) is that opposite poles attract each other, and one side of the scraper (403) is fixedly connected with an elastic pull rope (406); One end of the elastic pull rope (406) is fixedly connected to a counterweight magnetic block (408), one side of the counterweight magnetic block (408) is fixedly connected to a sliding plate (409), the inner wall of the sliding plate (409) is slidably connected to a fixing bar (410), a circular groove (413) is formed on the inner wall of the arc-shaped cover A (302), and one side of the fixing bar (410) is slidably connected to the inner wall of the circular groove (413).

2. The cooling liquid cooling device for a CNC machine tool according to claim 1, characterized in that: The inner walls of the arc cover A (302) are fixedly connected with arc plates (308) on both sides, the top of the arc plate (308) is fixedly connected with a brush strip (309), and the bottom of the arc plate (308) is fixedly connected with a baffle (312).

3. The cooling liquid cooling device for a CNC machine tool according to claim 2, characterized in that: The outer wall of the rotating wheel (305) contacts an inclined plate (310), one side of the inclined plate (310) is fixedly connected to an arc-shaped cover B (311), one side of the arc-shaped cover B (311) is fixedly connected to one side of the inner wall of the arc-shaped cover A (302), the inclined plate (310) is used to scrape off oil on the side of the rotating wheel (305), and the arc-shaped cover B (311) is used to collect the scraped oil.

4. The cooling liquid cooling device for a CNC machine tool according to claim 3, characterized in that: The inner wall of the groove (307) is fixedly connected to a limit plate (407), the inner wall of the limit plate (407) is provided with a small hole, the small hole is used to allow the elastic pull rope (406) to pass through, the outer wall of the fixing bar (410) is fixedly connected to a magnetic stopper (411), the magnetic stopper (411) and the counterweight magnet (408) are magnetic, and the magnetism of the magnetic stopper (411) and the counterweight magnet (408) on the opposite side is that opposite poles attract each other, and one end of the fixing bar (410) is fixedly connected to a connecting shaft (412), and one end of the connecting shaft (412) is fixedly connected to one side of the rotating wheel (305).

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