A water cooling device for a carving and milling machine

Abstract

The utility model discloses a kind of water cooling devices of engraving and milling machine, it is related to the technical field of engraving and milling machine, including water tank, four threaded columns are fixedly connected with the right side above water tank, conical flow guide groove is fixedly connected with the nut between four threaded columns, several filter holes are passed through and are arranged in the bottom surface inside conical flow guide groove, the inner wall of the both sides of water tank is fixedly connected with U-shaped sleeve in the left side of conical flow guide groove, chip collecting assembly is arranged between two U-shaped sleeves, cooling assembly is installed in the left side of water tank upper surface, stirring shaft is rotatably connected with the right side of chip collecting assembly inside water tank, at least three groups of stirring vane are fixedly connected with the outer surface of stirring shaft. Advantage lies in: using the secondary filtration system of "conical flow guide groove coarse filter+chip collecting assembly fine filter";The filter hole of conical flow guide groove intercepts large particle debris, and the staggered baffle of chip collecting assembly forms labyrinth flow channel, and small debris is caused to inertial sedimentation or adsorption by water flow turning, so as to improve filtration efficiency, avoid pipeline blockage and equipment scratch.

Description

Technical Field

[0001] This utility model relates to the field of engraving and milling machine technology, specifically to a water cooling device for engraving and milling machines. Background Technology

[0002] As the name suggests, a CNC engraving and milling machine can both engrave and mill. It is based on a CNC engraving machine but with increased spindle and servo motor power, and a stronger machine bed, while maintaining high spindle speed and, more importantly, very high precision. CNC engraving and milling machines are also developing towards higher speeds, generally referred to as high-speed machines, which have stronger cutting capabilities, extremely high processing precision, and can directly process materials with a hardness of HRC60 or higher in a single pass. CNC engraving and milling machines generally utilize water cooling.

[0003] Metal shavings and dust generated during processing will flow back to the water tank with the cooling water. If not filtered in time, they can easily clog the cooling pipes, scratch the spindle surface, or adhere to the cutting tool, affecting the machining accuracy. Traditional filtration devices (such as a single filter screen) can only intercept large particles of impurities, while fine debris will still enter the circulation system. Traditional cooling relies on natural heat dissipation or simple radiators, which are difficult to quickly remove the heat generated by high-speed processing, resulting in increased water temperature and reduced cooling effect. Furthermore, the cooling water in the water tank is prone to stratification, further reducing the uniformity of cooling. To address the above problems, a water cooling device for CNC engraving and milling machines is proposed. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a water cooling device for a CNC engraving and milling machine. This solves the problem that metal shavings and dust generated during the current machining process flow back to the water tank with the cooling water. If not filtered in time, these particles can easily clog cooling pipes, scratch the spindle surface, or adhere to the cutting tool, affecting machining accuracy. Traditional filtration devices (such as single-screen filters) can only intercept large particles, while fine debris still enters the circulation system. Traditional cooling relies heavily on natural heat dissipation or simple radiators, which are insufficient to quickly remove the heat generated during high-speed machining, leading to increased water temperature and reduced cooling effect. Furthermore, the cooling water in the tank is prone to stratification, further reducing cooling uniformity.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a water cooling device for a milling machine, comprising a water tank, four threaded columns fixedly connected to the upper right side of the water tank, a conical guide groove fixedly connected between the four threaded columns by nuts, a plurality of filter holes being opened through the bottom surface of the conical guide groove, U-shaped sleeves fixedly connected to the inner walls of the front and rear sides of the water tank on the left side of the conical guide groove, a chip collection assembly being provided between two U-shaped sleeves, a cooling assembly being installed on the left side of the upper surface of the water tank, and a stirring shaft being rotatably connected to the right side of the chip collection assembly inside the water tank, at least three sets of stirring blades being fixedly connected to the outer surface of the stirring shaft.

[0006] Preferably, a servo motor for driving the stirring shaft to rotate is fixedly installed on the lower rear side of the water tank, and the front end of the stirring shaft passes through the front side wall of the water tank and is fixedly connected to a first synchronous pulley.

[0007] Preferably, the chip collection assembly includes a chip collection box, which is slidably connected between the two U-shaped sleeves, and a cover plate with a handle is detachably connected to the top of the chip collection box.

[0008] Preferably, a water inlet is provided through the lower right side of the chip collection box, and a water outlet is provided through the upper left side of the chip collection box. At least three sets of first baffles are fixedly connected to the upper part of the inside of the chip collection box, and at least four sets of second baffles are fixedly connected to the lower part of the inside of the chip collection box. The second baffles and the first baffles are arranged alternately.

[0009] Preferably, the cooling assembly includes a radiator and a water pump. The radiator is fixedly connected to the front side of the upper surface of the water tank, and the water pump is fixedly connected to the rear side of the upper surface of the water tank. The input end of the water pump is fixedly connected to a water inlet pipe, and the end of the water inlet pipe extends into the interior of the water tank.

[0010] Preferably, the output end of the water pump is fixedly connected to a water outlet pipe, the end of the water outlet pipe is connected to the water inlet end of the radiator through a connector, and the water outlet end of the radiator is fixedly connected to a connecting hose.

[0011] Preferably, a mounting frame is fixedly connected to the front side of the radiator, a rotating seat is fixedly connected inside the mounting frame, a rotating rod is rotatably connected inside the rotating seat, a second synchronous pulley is fixedly connected to the front end of the rotating rod, the second synchronous pulley is connected to the first synchronous pulley via a synchronous belt, and a cooling fan is fixedly connected to the middle of the outer surface of the rotating rod.

[0012] Compared with the prior art, the advantages of this utility model are: 1. This utility model adopts a two-stage filtration system of "conical guide channel coarse filtration + chip collection component fine filtration": the filter holes of the conical guide channel intercept large particles of debris, and the staggered baffles of the chip collection component form a labyrinth-like flow channel. By changing the water flow, fine debris settles or is adsorbed due to inertia, which improves filtration efficiency and avoids pipe blockage and equipment scratches. The chip collection box is slidably connected by a U-shaped sleeve, and the cover is detachable. During cleaning, there is no need to disassemble the entire device. Only the chip collection box needs to be pulled out. Cleaning can be completed by a single person, reducing downtime and ensuring production continuity.

[0013] 2. This utility model expands the heat dissipation area and accelerates airflow by combining the radiator and cooling fan of the cooling component, thus improving the heat dissipation efficiency compared to traditional devices. It can stably control the cooling water temperature below 30℃, meeting the cooling requirements of high-speed engraving and milling. The stirring shaft drives the stirring blades to rotate, so that the cold water and hot water in the water tank are fully mixed, avoiding water temperature stratification and ensuring that the cooling water temperature entering the engraving and milling machine is uniform, improving cooling consistency. The servo motor drives the stirring shaft and the cooling fan simultaneously (through synchronous belt transmission), reducing the number of power sources and reducing energy consumption. The modular design of each component allows the radiator size (such as increasing the number of heat sinks) and the number of stirring blade groups to be adjusted according to the power of the engraving and milling machine, adapting to different models of equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the structure of the present invention that removes the conical guide groove; Figure 4 This is a schematic diagram of the conical guide channel structure in this utility model; Figure 5 This is a schematic diagram of the chip collection assembly structure in this utility model; Figure 6 This is a cross-sectional view of the chip collection component in this utility model; Figure 7 This is a schematic diagram showing the connection between the chip collection component and the U-shaped sleeve in this utility model; Figure 8 This is a schematic diagram of the cooling component structure in this utility model; Figure 9 This is a schematic diagram of the internal structure of the mounting frame in this utility model.

[0015] The numbers on the map are: 1. Water tank; 2. Threaded column; 3. Conical guide channel; 4. Filter hole; 5. U-shaped sleeve; 6. Chip collection assembly; 601. Chip collection box; 602. Cover plate; 603. Water inlet; 604. Water outlet; 605. First baffle plate; 606. Second baffle plate; 7. Cooling assembly; 701. Radiator; 702. Water pump; 703. Water inlet pipe; 704. Water outlet pipe; 705. Connecting hose; 706. Mounting frame; 707. Rotating seat; 708. Rotating rod; 709. Cooling fan; 710. Second synchronous pulley; 8. Servo motor; 9. Stirring shaft; 10. Stirring blades; 11. First synchronous pulley. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] Reference Figure 1 - Figure 9 As shown, a water cooling device for a CNC engraving and milling machine includes a water tank 1. Four threaded posts 2 are fixedly connected to the upper right side of the water tank 1. A conical guide groove 3 is fixedly connected between the four threaded posts 2 by nuts. Large particles such as metal shavings and dust are intercepted by filter holes 4. Preliminarily purified water flows through the filter holes 4 into the right side area of ​​the water tank 1, achieving primary solid-liquid separation. The diameter of the filter holes 4 is set to 1-3mm, which effectively blocks larger impurities from entering the water tank 1 while avoiding water flow blockage caused by excessively small holes, ensuring smooth flow of cooling water into subsequent filtration stages. The conical guide groove... The groove 3 is fixed by the threaded post 2 and nut, which is convenient for disassembly and cleaning; the pipeline of the cooling component 7 adopts quick connectors, which are simple to replace and maintain without professional tools. The bottom surface of the conical guide groove 3 is provided with several filter holes 4. The inner walls of the front and rear sides of the water tank 1 are fixedly connected to the left side of the conical guide groove 3 with U-shaped sleeves 5. A chip collection component 6 is set between the two U-shaped sleeves 5. The cooling component 7 is installed on the left side of the upper surface of the water tank 1. The stirring shaft 9 is rotatably connected to the right side of the chip collection component 6 inside the water tank 1. At least three sets of stirring blades 10 are fixedly connected to the outer surface of the stirring shaft 9.

[0019] In one embodiment of this utility model, a servo motor 8 for driving the stirring shaft 9 to rotate is fixedly installed on the lower rear side of the water tank 1. The front end of the stirring shaft 9 passes through the front side wall of the water tank 1 and is fixedly connected to the first synchronous wheel 11. When the servo motor 8 drives the stirring shaft 9 to rotate, the stirring blades 10 fully mix the cold water pre-stored in the water tank 1 with the recycled hot water to avoid water temperature stratification, ensure that the water temperature entering the cooling cycle is uniform, and improve the cooling efficiency.

[0020] In one embodiment of this utility model, the chip collection assembly 6 includes a chip collection box 601, which is slidably connected between two U-shaped sleeves 5. A cover plate 602 with a handle is detachably connected to the top of the chip collection box 601. When the internal debris accumulates to a certain amount, the chip collection box 601 can be pulled out from the U-shaped sleeves 5 through the handle of the cover plate 602. Opening the cover plate 602 can clean the debris that has settled at the bottom. After cleaning, the U-shaped sleeves 5 can be reinserted and the cover plate 602 can be closed, so as to achieve rapid maintenance without interrupting the operation of the device.

[0021] In one embodiment of this utility model, a water inlet 603 is provided through the lower right side of the debris collection box 601, and a water outlet 604 is provided through the upper left side of the debris collection box 601. At least three sets of first baffles 605 are fixedly connected to the upper part of the interior of the debris collection box 601, and at least four sets of second baffles 606 are fixedly connected to the lower part of the interior of the debris collection box 601. The second baffles 606 and the first baffles 605 are arranged alternately. The alternating arrangement of the first baffles 605 and the second baffles 606 forces the water flow to change direction multiple times, going down around the first baffles 605 and up around the second baffles 606. Due to inertia, the fine debris cannot follow the direction of the water flow and gradually settles at the bottom of the debris collection box 601 or is absorbed by the baffles. Finally, the clean water flows out from the water outlet 604 to the left side of the water tank 1, completing the fine filtration.

[0022] In one embodiment of this utility model, the cooling assembly 7 includes a radiator 701 and a water pump 702. The radiator 701 is fixedly connected to the front side of the upper surface of the water tank 1, and the water pump 702 is fixedly connected to the rear side of the upper surface of the water tank 1. The input end of the water pump 702 is fixedly connected to a water inlet pipe 703, and the end of the water inlet pipe 703 extends into the interior of the water tank 1. The input end of the water pump 702 draws low-temperature water from the interior of the water tank 1 through the water inlet pipe 703. The output end is connected to the water inlet end of the radiator 701 through a water outlet pipe 704. The water outlet end of the radiator 701 delivers the cooled water back to the engraving and milling machine through a connecting hose 705. The water pump 702 drives the cooling water to form a closed loop of "water tank 1-radiator 701-engraving and milling machine", continuously cooling the spindle and the cutting tool.

[0023] In one embodiment of this utility model, the output end of the water pump 702 is fixedly connected to the water outlet pipe 704, and the end of the water outlet pipe 704 is connected to the water inlet end of the radiator 701 through a connector. The water outlet end of the radiator 701 is fixedly connected to the connecting hose 705, which is used to connect to the water inlet interface of the cooling system of the engraving and milling machine to provide cooling water for cooling the spindle and the cutting tool.

[0024] In one embodiment of this utility model, a mounting frame 706 is fixedly connected to the front side of the radiator 701. A rotating seat 707 is fixedly connected inside the mounting frame 706. A rotating rod 708 is rotatably connected inside the rotating seat 707. A second synchronous pulley 710 is fixedly connected to the front end of the rotating rod 708. The second synchronous pulley 710 is connected to the first synchronous pulley 11 via a synchronous belt. A cooling fan 709 is fixedly connected to the middle of the outer surface of the rotating rod 708. The first synchronous pulley 11 drives the second synchronous pulley 710 to rotate via a synchronous belt, thereby driving the rotating rod 708 and the cooling fan 709 on the outer surface to rotate at high speed, accelerating the airflow on the surface of the radiator 701, and quickly dissipating the heat in the water into the air. Both the synchronous belt and the second synchronous pulley 710 are made of high-temperature resistant material.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0026] Working principle: During the CNC engraving and milling process, the hot water used to cool the spindle and cutting tools is discharged into the conical guide channel 3 through the return water pipe. The conical structure guides the water flow to the bottom and converges. Large particles of debris such as metal shavings and dust in the water flow are intercepted by the filter holes 4 on the bottom surface of the conical guide channel 3. The preliminarily purified water flows through the filter holes 4 into the right side area of ​​the water tank 1. The water on the right side of the water tank 1 enters the chip collection assembly 6 through the inlet 603 on the lower right side of the chip collection box 601. The first baffle 605 and the second baffle 605 are arranged alternately inside the chip collection box 601. The lower side of plate 606 forces the water flow to change direction multiple times, flowing upwards around the first baffle plate 605 and downwards around the second baffle plate 606. Fine debris in the water flow, due to inertia, cannot follow the flow and gradually settles at the bottom of the debris collection box 601, or is adsorbed by the surface of the baffle plates. The finely filtered water flows out from the outlet 604 on the upper left side of the debris collection box 601 and enters the left side area of ​​the water tank 1, completing the filtration process. The servo motor 8 is then activated, and its output drives the stirring shaft 9 to rotate. The stirring blades 10 on the outer surface of the stirring shaft 9 rotate synchronously. The pump 702 thoroughly mixes the cooled hot water with the pre-stored cold water in water tank 1 to prevent water temperature stratification and ensure uniform water temperature entering the cooling cycle. The pump 702 draws low-temperature water from water tank 1 through inlet pipe 703 and delivers it to radiator 701 through outlet pipe 704. Simultaneously, the first synchronous pulley 11 at the front end of the stirring shaft 9 drives the second synchronous pulley 710 at the front of radiator 701 to rotate via a synchronous belt, causing the rotating rod 708 to rotate within the rotating seat 707. The cooling fan 709 rotates synchronously at high speed, accelerating the cooling of radiator 701. The airflow on the surface of 01 dissipates the heat from the water into the air. The low-temperature water, cooled by the radiator 701, is transported back to the cooling pipes of the engraving and milling machine through the connecting hose 705 to cool the spindle and the cutting tool, completing a closed-loop cycle of "use-recovery-filtration-cooling". When the chips in the chip collection box 601 accumulate to a certain amount, the chip collection box 601 can be pulled out from the U-shaped sleeve 5 through the handle of the cover plate 602, the cover plate 602 can be opened to clean the internal chips, and the U-shaped sleeve 5 can be reinserted after cleaning without affecting the continuous operation of the device.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water cooling device for a CNC engraving and milling machine, characterized in that: Includes a water tank (1), four threaded columns (2) are fixedly connected to the upper right side of the water tank (1), and a conical guide groove (3) is fixedly connected between the four threaded columns (2) by nuts. Several filter holes (4) are opened through the bottom surface of the conical guide groove (3). U-shaped sleeves (5) are fixedly connected to the inner walls of the front and rear sides of the water tank (1) on the left side of the conical guide groove (3). A chip collection assembly (6) is provided between the two U-shaped sleeves (5). A cooling assembly (7) is installed on the left side of the upper surface of the water tank (1). A stirring shaft (9) is rotatably connected to the right side of the chip collection assembly (6) inside the water tank (1). At least three sets of stirring blades (10) are fixedly connected to the outer surface of the stirring shaft (9).

2. The water cooling device for a CNC engraving and milling machine according to claim 1, characterized in that: A servo motor (8) for driving the stirring shaft (9) to rotate is fixedly installed on the lower rear side of the water tank (1). The front end of the stirring shaft (9) passes through the front side wall of the water tank (1) and is fixedly connected to the first synchronous wheel (11).

3. A water cooling device for a CNC engraving and milling machine according to any one of claims 1-2, characterized in that: The chip collection assembly (6) includes a chip collection box (601), which is slidably connected between the two U-shaped sleeves (5), and a cover plate (602) with a handle is detachably connected to the top of the chip collection box (601).

4. The water cooling device for a CNC engraving and milling machine according to claim 3, characterized in that: The chip collection box (601) has a water inlet (603) extending through the lower right side and a water outlet (604) extending through the upper left side. At least three sets of first baffles (605) are fixedly connected to the upper inside of the chip collection box (601), and at least four sets of second baffles (606) are fixedly connected to the lower inside of the chip collection box (601). The second baffles (606) and the first baffles (605) are arranged alternately.

5. A water cooling device for a CNC engraving and milling machine according to any one of claims 1-2, characterized in that: The cooling assembly (7) includes a radiator (701) and a water pump (702). The radiator (701) is fixedly connected to the front side of the upper surface of the water tank (1), and the water pump (702) is fixedly connected to the rear side of the upper surface of the water tank (1). The input end of the water pump (702) is fixedly connected to a water inlet pipe (703), and the end of the water inlet pipe (703) extends into the interior of the water tank (1).

6. A water cooling device for a CNC engraving and milling machine according to claim 5, characterized in that: The output end of the water pump (702) is fixedly connected to the water outlet pipe (704), and the end of the water outlet pipe (704) is connected to the water inlet end of the radiator (701) through a connector. The water outlet end of the radiator (701) is fixedly connected to the connecting hose (705).

7. A water cooling device for a CNC engraving and milling machine according to claim 6, characterized in that: A mounting frame (706) is fixedly connected to the front side of the radiator (701). A rotating seat (707) is fixedly connected inside the mounting frame (706). A rotating rod (708) is rotatably connected inside the rotating seat (707). A second synchronous pulley (710) is fixedly connected to the front end of the rotating rod (708). The second synchronous pulley (710) is connected to the first synchronous pulley (11) via a synchronous belt. A cooling fan (709) is fixedly connected to the middle of the outer surface of the rotating rod (708).

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