Circulating cooling device of numerical control machine tool

Abstract

The circulating cooling device of the numerical control machine tool comprises a liquid collecting box, a first scrap removing mechanism capable of rotating relatively and a second scrap removing mechanism capable of sliding relatively are arranged in the liquid collecting box, and a liquid discharging opening is formed in the bottom of the liquid collecting box; the first scrap removing mechanism comprises a first permanent magnetic roller which is rotatably mounted on the liquid collecting box; the first permanent magnetic roller is positioned at one end of the liquid collecting box and is tangent to the first side wall of the liquid collecting box; the second chip removal mechanism comprises a second permanent magnet roller parallel to the first permanent magnet roller; the second permanent magnet rollers are rotatably mounted on the corresponding sliding blocks; the two sides of the liquid collecting box are provided with matched sliding rails corresponding to the sliding blocks respectively, and the extending direction is parallel to the first direction. A first permanent magnetic roller and a second permanent magnetic roller are arranged in a liquid collecting box, and free scrap iron in the liquid collecting box can be effectively adsorbed and collected through the sliding relation between the second permanent magnetic roller and the liquid collecting box; and the first permanent magnetic roller can be used for continuously adsorbing and filtering the output liquid at the liquid outlet, so that solid-liquid separation can be effectively carried out on the cooling liquid.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool cooling, and in particular to a circulating cooling device for a numerically controlled machine tool. Background Art

[0002] A machine tool refers to a machine that manufactures machines, also known as a mother machine or machine tool, and is usually referred to as a machine tool. It is generally divided into metal cutting machine tools, forging machine tools, and woodworking machine tools. Cooling devices are used in the processing of CNC machine tools. The coolant can reduce the temperature of the processing part. It can take away a large amount of processing heat generated during cutting, reduce the temperature of the workpiece and the tool, reduce the thermal deformation of the workpiece, and can control the generation of residual stress and micro cracks.

[0003] At present, the machine tool cooling circulation devices used in the market often suck in metal chips and coolant at the same time, which cannot be processed separately, and thus the coolant cannot be filtered and cleaned multiple times, resulting in the existing cooling circulation devices not removing impurities thoroughly and not being convenient for cleaning the filter plate. Therefore, the above problems need to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a circulating cooling device for a CNC machine tool.

[0005] The present application provides a circulating cooling device for a numerically controlled machine tool, comprising:

[0006] A liquid collecting box, wherein a first chip removing mechanism that can rotate relatively and a second chip removing mechanism that can slide relatively are arranged inside the liquid collecting box, and a liquid discharge port is arranged at the bottom;

[0007] The liquid discharge port is located below the first chip removal mechanism;

[0008] The first chip removal mechanism comprises a first permanent magnetic roller rotatably mounted on the liquid collecting tank;

[0009] The first permanent magnet roller is located at one end of the liquid collecting tank and is tangent to the first side wall of the liquid collecting tank;

[0010] The second chip removal mechanism comprises a second permanent magnetic roller parallel to the first permanent magnetic roller and arranged along a first direction between the second permanent magnetic roller and the first permanent magnetic roller;

[0011] The two ends of the second permanent magnet roller are rotatably mounted on corresponding sliders;

[0012] Matching slide rails are provided on both sides of the liquid collecting box corresponding to the sliding blocks, and the extending direction is parallel to the first direction.

[0013] Furthermore,

[0014] The slider is driven by a screw rod;

[0015] The screw rods are respectively located on both sides of the liquid collecting tank, and their extension direction is parallel to the first direction;

[0016] The sliding block is provided with a matching threaded hole corresponding to the screw rod and is threadedly connected with the screw rod.

[0017] Furthermore,

[0018] The screw rod is driven by a stepping motor;

[0019] The stepper motor is located on the second side wall of the liquid collecting tank away from the first side wall, and the output end is connected to the screw rod through a connecting shaft;

[0020] The axial direction of the connecting shaft is perpendicular to the first direction, and both ends are connected to the stepping motor and the lead screw through bevel gear sets.

[0021] Furthermore,

[0022] A guide plate is respectively provided on one side of the first side wall and the second side wall which are away from each other;

[0023] The guide plate is installed obliquely, and its height away from one end of the liquid collecting tank is relatively low, so as to guide and output the iron chips.

[0024] Furthermore,

[0025] The second permanent magnet roller is driven to rotate by a servo motor;

[0026] The servo motor is fixedly mounted on the slider;

[0027] The rotation direction of the second permanent magnet roller close to the second side wall is from top to bottom.

[0028] Furthermore,

[0029] The liquid discharge port is connected to the liquid storage tank via a water pump;

[0030] A vertical partition is provided inside the liquid storage tank to form an independent sedimentation chamber and an output chamber inside the liquid storage tank;

[0031] A connecting hole is provided in the middle of the partition plate for connecting the precipitation chamber and the output chamber.

[0032] Furthermore,

[0033] A buffer plate is provided inside the sedimentation chamber, and a docking port is provided at the top corresponding to the water pump;

[0034] The buffer plate is provided with evenly arranged through holes, which are located between the docking port and the communicating hole along the vertical direction.

[0035] Furthermore,

[0036] The buffer plate is also provided with a filter screen;

[0037] The filter screen is detachably mounted on the buffer plate and is located above the buffer plate;

[0038] Pressing plates are provided at the four sides of the buffer plate respectively corresponding to the filter screen;

[0039] The pressing plate is rotatably connected with the buffer plate via a hinge shaft, and a torsion spring for self-reset is sleeved on the hinge shaft.

[0040] Furthermore,

[0041] The output cavity is provided with a spoiler inside and an output hole on the top;

[0042] The spoiler is provided with evenly arranged small holes, which are staggered between the connecting hole and the output hole.

[0043] Furthermore,

[0044] The output hole extends to the interior of the output cavity through a hose;

[0045] A floating block is also provided at one end of the hose away from the output hole, which is used to control the input end of the hose to be located at the liquid surface.

[0046] The advantages and positive effects of this application are:

[0047] This technical solution arranges a first permanent magnet roller and a second permanent magnet roller inside the liquid collecting box respectively, and utilizes the sliding relationship between the second permanent magnet roller and the liquid collecting box to effectively adsorb and collect the free iron filings in the liquid collecting box; while the first permanent magnet roller can continuously adsorb and filter the output liquid at the drain port, thereby effectively separating the solid and liquid of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic diagram of the structure of a circulating cooling device for a CNC machine tool provided in an embodiment of the present application;

[0049] Figure 2 A schematic diagram of the structure of a screw rod of a circulating cooling device for a CNC machine tool provided in an embodiment of the present application.

[0050] The text markings in the figure are as follows: 100 - liquid collecting tank; 101 - liquid discharge port; 110 - first permanent magnet roller; 120 - second permanent magnet roller; 130 - slider; 140 - slide rail; 141 - lead screw; 150 - stepping motor; 160 - connecting shaft; 170 - guide plate; 200 - water pump; 300 - liquid storage tank; 310 - partition; 311 - connecting hole; 320 - sedimentation chamber; 321 - buffer plate; 322 - docking port; 330 - output chamber; 331 - spoiler; 332 - output hole; 333 - hose; 334 - floating block. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application.

[0052] Please refer to Figure 1 -2. This embodiment provides a circulating cooling device for a CNC machine tool, including a liquid collecting box 100. A first chip removal mechanism that can rotate relatively and a second chip removal mechanism that can slide relatively are provided inside the liquid collecting box 100, and a liquid discharge port 101 is provided at the bottom; the liquid discharge port 101 is located below the first chip removal mechanism; the first chip removal mechanism includes a first permanent magnet roller 110 that can be rotatably mounted on the liquid collecting box 100; the first permanent magnet roller 110 is located at one end of the liquid collecting box 100 and is tangent to the first side wall of the liquid collecting box 100; the second chip removal mechanism includes a second permanent magnet roller 120 that is parallel to the first permanent magnet roller 110 and is arranged along the first direction between the first permanent magnet roller 110; the two ends of the second permanent magnet roller 120 are rotatably mounted on the corresponding sliders 130 respectively; matching slide rails 140 are provided on both sides of the liquid collecting box 100 corresponding to the sliders 130, and the extension direction is parallel to the first direction.

[0053] In this embodiment, the liquid collecting box 100 is a rectangular structure, which is used to collect the used coolant in the machine tool. A drain port 101 is provided at the bottom at one end along the length direction, which is used to recycle and reuse the coolant.

[0054] In this embodiment, coaxial mounting shafts are respectively provided at both ends of the first permanent magnet roller 110; the mounting shafts are located above the liquid collecting box 100 and are rotatably connected to the liquid collecting box (100) through bearings; the length of the first permanent magnet roller 110 matches the width of the liquid collecting box 100, and a small gap is left between the bottom and the floor of the liquid collecting box 100, thereby ensuring that the coolant enters the drain port 101 and preventing iron filings from entering the drain port 101; at the same time, the first permanent magnet roller 110 is also tangentially abutted against the first side wall of the liquid collecting box 100, so that the adsorbed iron filings can be scraped off during the rotation of the first permanent magnet roller 110 and discharged to the outside of the liquid collecting box 100.

[0055] In this embodiment, the length of the second permanent magnet roller 120 matches the width of the liquid collecting tank 100, and is connected to the liquid collecting tank 100 through coaxial mounting shafts at both ends; sliders 130 are respectively provided on the corresponding mounting shafts on both sides of the liquid collecting tank 100; the slider 130 is slidingly connected to the liquid collecting tank 100, and the sliding direction is parallel to the length direction of the liquid collecting tank 100; the slider 130 is rotationally connected to the mounting shaft, so that the second permanent magnet roller 120 can both slide and rotate relative to the liquid collecting tank 100.

[0056] In this embodiment, when the second permanent magnet roller 120 slides to the liquid collecting box 100 away from the first side wall, it will be tangentially connected with the corresponding side wall, so that the adsorbed iron filings can be scraped off and discharged to the outside of the liquid collecting box 100 by the self-rotation of the second permanent magnet roller 120.

[0057] In a preferred embodiment, the slider 130 is driven by a screw rod 141 ; the screw rods 141 are respectively located on both sides of the liquid collecting tank 100 , and the extension direction is parallel to the first direction; a matching threaded hole is provided on the slider 130 corresponding to the screw rod 141 , and is threadedly connected to the screw rod 141 .

[0058] In this embodiment, screw rods 141 are respectively provided on both sides of the liquid collecting box 100 corresponding to the sliders 130; both ends of the screw rod 141 are respectively installed on the liquid collecting box 100 through bearings, and thus can only rotate relative to the liquid collecting box 100 but cannot move relative to the liquid collecting box 100.

[0059] In this embodiment, a matching threaded hole is provided on the slider 130 corresponding to the screw rod 141 , and the slider 130 is sleeved and connected with the screw rod 141 through the threaded hole, so that the slider 130 can be effectively driven to perform relative displacement by rotating the screw rod 141 .

[0060] In a preferred embodiment, the screw rod 141 is driven by a stepper motor 150; the stepper motor 150 is located on the second side wall of the liquid collecting box 100 away from the first side wall, and the output end is connected to the screw rod 141 through a connecting shaft 160; the axial direction of the connecting shaft 160 is perpendicular to the first direction, and the two ends are respectively connected to the stepper motor 150 and the screw rod 141 through a bevel gear set.

[0061] In this embodiment, the two screw rods 141 are synchronously driven by a stepper motor 150; the stepper motor 150 is fixedly mounted on the second side wall of the liquid collecting box 100, and a first bevel gear 180 is mounted on the output shaft; the two screw rods 141 are respectively connected to the first bevel gear 180 through the connecting shaft 160.

[0062] In this embodiment, a second bevel gear 181 and a third bevel gear 182 are respectively provided at both ends of the connecting shaft 160; wherein the second bevel gear 181 is meshingly connected with the first bevel gear 180, and the third bevel gear 182 is connected to the screw rod 141 through the fourth bevel gear 183; the fourth bevel gear 183 is fixedly mounted on the screw rod 141.

[0063] In a preferred embodiment, guide plates 170 are respectively provided on the side of the first side wall and the second side wall away from each other; the guide plates 170 are installed obliquely and are relatively low in height away from the end of the collecting tank 100, so as to guide and output the iron filings.

[0064] In this embodiment, the first side wall and the second side wall are respectively provided with an obliquely installed guide plate 170 on the side away from each other, so that the scraped iron chips are transported to a designated position by the guide plate 170, and the iron chips are then processed centrally.

[0065] In a preferred embodiment, the second permanent magnet roller 120 is driven to rotate by a servo motor; the servo motor is fixedly mounted on the slider 130; and the rotation direction of the second permanent magnet roller 120 close to the second side wall is from top to bottom.

[0066] In a preferred embodiment, the drain port 101 is connected to the liquid storage tank 300 through a water pump 200; a vertical partition 310 is provided inside the liquid storage tank 300 to form an independent sedimentation chamber 320 and an output chamber 330 inside the liquid storage tank 300; a connecting hole 311 is provided in the middle of the partition 310 to connect the sedimentation chamber 320 and the output chamber 330.

[0067] In this embodiment, the liquid collecting tank 100 is connected to the liquid storage tank 300 through the liquid discharge port 101, so as to collect and store the coolant; at the same time, a water pump 200 is also provided between the liquid storage tank 300 and the liquid discharge port 101 to provide driving force for collecting the coolant.

[0068] In a preferred embodiment, a buffer plate 321 is provided inside the sedimentation chamber 320, and a docking port 322 is provided at the top corresponding to the water pump 200; the buffer plate 321 is provided with evenly arranged through holes, and is located between the docking port 322 and the connecting hole 311 in the vertical direction.

[0069] In this embodiment, a docking port 322 connected to the water pump 200 is provided at the top of the sedimentation chamber 320, and a buffer plate 321 is provided inside; after the coolant enters the sedimentation chamber 320 through the docking port 322, it can be effectively buffered by the buffer plate 321, thereby effectively reducing the impact on the sedimentation effect.

[0070] In this embodiment, the buffer plate 321 is provided with evenly arranged through holes, so as to not only buffer the coolant entering, but also ensure that the coolant can pass through the buffer plate 321 and enter the bottom of the precipitation chamber 320 for precipitation.

[0071] In a preferred embodiment, a filter screen is also provided on the buffer plate 321; the filter screen is detachably mounted on the buffer plate 321 and is located above the buffer plate 321; pressure plates are provided at the four sides of the buffer plate 321 corresponding to the filter screens respectively; the pressure plate is rotatably connected to the buffer plate 321 through a hinge shaft, and a torsion spring for self-reset is sleeved on the hinge shaft.

[0072] In a preferred embodiment, a spoiler 331 is provided inside the output cavity 330 , and an output hole 332 is provided on the top; the spoiler 331 is provided with evenly arranged small holes, which are staggered between the connecting hole 311 and the output hole 332 .

[0073] In this embodiment, small holes are provided on the spoiler 331 to ensure that the coolant can pass normally and then be output through the output hole 332; and the fine iron filings remaining in the coolant can be blocked to complete the last step of filtering.

[0074] In a preferred embodiment, the output hole 332 extends to the inside of the output cavity 330 through a hose 333; a float 334 is also provided at one end of the hose 333 away from the output hole 332 for controlling the input end of the hose 333 to be located at the liquid surface.

[0075] In this embodiment, the output hole 332 is connected to the coolant in the output cavity 330 through the hose 333, and the floating block 334 at the end of the hose 333 can ensure that the hose 333 always floats on the liquid surface, thereby effectively reducing the suction of bottom impurities.

[0076] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A circulating cooling device for a CNC machine tool, characterized in that: include A liquid collecting box (100), wherein a first chip removal mechanism that can rotate relatively and a second chip removal mechanism that can slide relatively are provided inside the liquid collecting box (100), and a liquid discharge port (101) is provided at the bottom; The liquid discharge port (101) is located below the first chip removal mechanism; The first chip removal mechanism comprises a first permanent magnetic roller (110) rotatably mounted on the liquid collecting box (100); The first permanent magnet roller (110) is located at one end of the liquid collecting box (100) and is tangent to a first side wall of the liquid collecting box (100); The second chip removal mechanism comprises a second permanent magnetic roller (120) which is parallel to the first permanent magnetic roller (110) and arranged along a first direction between the second permanent magnetic roller (120) and the first permanent magnetic roller (110); Both ends of the second permanent magnet roller (120) are rotatably mounted on corresponding sliders (130); Matching slide rails (140) are provided on both sides of the liquid collecting box (100) corresponding to the sliding blocks (130), and the extending direction is parallel to the first direction.

2. The circulating cooling device for CNC machine tools according to claim 1, characterized in that: The slider (130) is driven by a screw rod (141); The screw rods (141) are respectively located on two sides of the liquid collecting tank (100), and their extension direction is parallel to the first direction; The slider (130) is provided with a matching threaded hole corresponding to the screw rod (141), and is threadedly connected to the screw rod (141).

3. The circulating cooling device for CNC machine tools according to claim 2, characterized in that: The screw rod (141) is driven by a stepping motor (150); The stepping motor (150) is located on a second side wall of the liquid collecting tank (100) away from the first side wall, and an output end is connected to the screw rod (141) via a connecting shaft (160); The axial direction of the connecting shaft (160) is perpendicular to the first direction, and both ends are connected to the stepping motor (150) and the lead screw (141) via bevel gear sets.

4. The circulating cooling device for CNC machine tools according to claim 3, characterized in that: A guide plate (170) is respectively provided on one side of the first side wall and the second side wall which is away from each other; The guide plate (170) is installed obliquely, and the height of the end away from the liquid collecting box (100) is relatively low, and is used to guide and output iron chips.

5. The circulating cooling device for CNC machine tools according to claim 3, characterized in that: The second permanent magnet roller (120) is driven to rotate by a servo motor; The servo motor is fixedly mounted on the slider (130); The rotation direction of the second permanent magnet roller (120) on the side close to the second side wall is from top to bottom.

6. The circulating cooling device for CNC machine tools according to claim 1, characterized in that: The liquid discharge port (101) is connected to the liquid storage tank (300) via a water pump (200); A vertical partition (310) is provided inside the liquid storage tank (300) for forming an independent sedimentation chamber (320) and an output chamber (330) inside the liquid storage tank (300); A communication hole (311) is provided in the middle of the partition (310) for connecting the precipitation chamber (320) and the output chamber (330).

7. The circulating cooling device for CNC machine tools according to claim 6, characterized in that: A buffer plate (321) is provided inside the sedimentation chamber (320), and a docking port (322) is provided at the top corresponding to the water pump (200); The buffer plate (321) is provided with evenly arranged through holes, which are located between the docking port (322) and the communication hole (311) in the vertical direction.

8. The circulating cooling device for CNC machine tools according to claim 7, characterized in that: The buffer plate (321) is also provided with a filter screen; The filter screen is detachably mounted on the buffer plate (321) and is located above the buffer plate (321); Pressing plates are provided at the four sides of the buffer plate (321) respectively corresponding to the filter screen; The pressure plate is rotatably connected to the buffer plate (321) via a hinge shaft, and a torsion spring for self-reset is sleeved on the hinge shaft.

9. The circulating cooling device for CNC machine tools according to claim 6, characterized in that: The output cavity (330) is provided with a spoiler (331) inside and an output hole (332) at the top; The spoiler (331) is provided with evenly arranged small holes, which are arranged in a staggered manner between the connecting hole (311) and the output hole (332).

10. The circulating cooling device for CNC machine tools according to claim 9, characterized in that: The output hole (332) extends to the interior of the output cavity (330) through a hose (333); A floating block (334) is also provided at one end of the hose (333) away from the output hole (332) for controlling the input end of the hose (333) to be located at the liquid surface.

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