Cooling device for electric spindle of numerical control machine tool

Abstract

The utility model belongs to the technical field of cooling devices, and particularly relates to a numerically-controlled machine tool electric spindle cooling device which comprises a frame, a water storage tank, a battery assembly and a water pump, and the input end of the water pump is communicated with the water storage tank. A heat dissipation assembly is arranged at the top of the frame, the output end of the water pump is connected with a conveying pipe, a filter box is fixedly installed in the frame, and the other side of the filter box communicates with the water storage tank through a pipeline. According to the cooling liquid filtering device, cooling liquid particles can be conveniently filtered through the installed filter screen, pipeline blockage caused by excessive particles is avoided, after cooling liquid enters the filter box, the cooling liquid flows through the square frame, the filter screen can filter impurities carried by the cooling liquid, then the purpose of filtering the cooling liquid is achieved, the cooling liquid is prevented from carrying the impurities, and the service life of the cooling liquid is prolonged. Water pipes and other parts in a cooling system are blocked, the cooling effect is affected, and the heat conduction efficiency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling device technical field, concretely is a kind of numerical control machine tool electric spindle cooling device. BACKGROUND

[0002] The electric spindle cooling device of numerical control machine tool is crucial in guaranteeing machine tool efficient stable operation, a large amount of heat is generated when electric spindle operates at high speed, cooling device can effectively maintain the working temperature of main shaft, prevent the performance decline or damage due to overheating, by keeping proper working temperature, the service life of electric spindle and its bearing can be prolonged, stable temperature environment helps to maintain machining accuracy, reduce the dimensional error due to thermal expansion.

[0003] Patent document CN213944913U discloses a kind of numerical control machine tool electric spindle cooling device, "including the box of upper and lower two ends opening, two refrigerant flat tubes of serpentine arrangement are fixed in box, refrigerant flat tube front and back two ends are fixed and sealed with the front and back side wall of box, two refrigerant flat tubes and the front and back side wall of box form cooling liquid passage, the two vertical parts of same refrigerant flat tube are adjacent and form cooling cavity, the opening of cooling cavity is towards its one side box opening, spare cooling device is provided in cooling cavity.The device is convenient to use, cooling effect is good, simple structure, can carry out efficient cooling to cooling liquid, can make the working temperature of electric spindle keep in proper range, so that electric spindle can work stably, when the refrigeration device of cooling liquid is damaged, the semiconductor refrigerator of spare cooling device can be started to cool cooling liquid, prevent electric spindle from being damaged due to temperature being too high", however, the numerical control machine tool electric spindle cooling device of above-mentioned disclosure, mainly consider starting the semiconductor refrigerator of spare cooling device to cool cooling liquid, prevent electric spindle from being damaged due to temperature being too high, but do not consider the problem of filtering and purifying cooling liquid, there is some wear and corrosion of metal parts in cooling system, some metal particle impurities can be generated, in long-term use process, cooling liquid itself can also have some chemical reactions, some precipitates or chemical impurities are generated, impurity particles can block the pipeline in cooling system and affect cooling effect, therefore, it is necessary to study a kind of numerical control machine tool electric spindle cooling device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of numerical control machine tool electric spindle cooling device to solve the technical problem of not being convenient for filtering cooling liquid in the above background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a numerical control machine tool electric main shaft cooling device, including the frame, the frame inside fixed mounting has the water storage tank, the frame inside fixed mounting has the battery assembly, the frame inside fixed mounting has the water pump, and battery assembly is connected with water pump electricity, and the water pump input end is linked with the water storage tank, the frame top is provided with the heat abstractor, the water pump output end is connected with the delivery pipe, the frame inside fixed mounting has the filter box, and the filter box one side is installed with the backflow pipe, and the filter box other side is linked with the water storage tank through the pipeline, the filter box inside is provided with the square frame, be provided with the groove body corresponding with the square frame on the filter box, and the square frame one side extends to the groove body inside, be provided with the sealing ring around on the square frame, and the sealing ring is used for sealing the gap between the square frame and the groove body, the square frame inside fixed mounting has the filter screen, be provided with the positioning assembly for the square frame limiting on the filter box.

[0006] Preferably, the heat abstractor includes a heat-conducting plate and a heat dissipation fin, the heat-conducting plate is arranged on the top of the frame, and the heat-conducting plate is attached to the top of the water storage tank, and a plurality of heat dissipation fins are arrayed on the heat-conducting plate.

[0007] Preferably, the positioning assembly includes a limiting hole, a threaded hole and a positioning bolt, the limiting hole is arranged on the top of the square frame, the threaded hole is arranged on the filter box, and the threaded hole is concentrically arranged with the limiting hole, and the positioning bolt is threadedly connected in the threaded hole, and one end of the positioning bolt extends into the limiting hole.

[0008] Preferably, the frame is inlaid with a shunt groove, and a plurality of exhaust holes are arrayed on the shunt groove.

[0009] Preferably, a wind box is fixedly installed on the frame, a fan is fixedly installed in the wind box, an output pipe is connected to the output end of the fan, one end of the output pipe is communicated with the shunt groove, and the battery assembly is electrically connected with the fan.

[0010] Preferably, a controller is fixedly installed on the frame, and the controller is electrically connected with the water pump and the fan respectively.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The filter screen installed in the utility model can filter the particles in the cooling liquid, avoid the pipeline blockage caused by too many particles, and realize the filtering purpose of the cooling liquid after the cooling liquid enters the filter box, avoid the blockage of the water pipe and other components in the cooling system caused by the impurities carried by the cooling liquid, affect the cooling effect, reduce the heat conduction efficiency, and improve the practicality of the numerical control machine tool electric main shaft cooling device.

[0013] 2. The utility model discloses a fan and exhaust hole convenient for improving the heat dissipation efficiency, the fan works and produces wind force, and the wind force flows into the output pipe, then flows into the shunt groove through the output pipe, the air in the shunt groove flows to the outside through the exhaust hole, the wind force sent by the exhaust hole flows through the heat dissipation fin, thereby the heat dissipation efficiency of the heat dissipation fin can be improved, and the heat dissipation efficiency of the cooling liquid is improved, and the effect of cooling the electric spindle of the numerical control machine tool is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the frame structure schematic diagram of the utility model;

[0016] Figure 3 It is the filter box structure schematic diagram of the utility model;

[0017] Figure 4 It is the wind box structure schematic diagram of the utility model.

[0018] In the drawing: 1, frame; 2, water storage tank; 3, water pump; 4, conveying pipe; 5, heat conduction plate; 6, heat dissipation fin; 7, filter box; 8, return pipe; 9, groove body; 10, square frame; 11, filter screen; 12, sealing ring; 13, limiting hole; 14, screw hole; 15, positioning bolt; 16, shunt groove; 17, exhaust hole; 18, wind box; 19, fan; 20, output pipe; 21, battery assembly; 22, controller. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0020] Please refer to Figures 1 to 4The utility model provides a kind of CNC machine tool electric spindle cooling device, including frame 1, water storage tank 2 is fixedly installed inside frame 1, battery assembly 21 is fixedly installed inside frame 1, water pump 3 is fixedly installed inside frame 1, and battery assembly 21 is electrically connected with water pump 3, the input end of water pump 3 is communicated with water storage tank 2, and the top of frame 1 is provided with heat dissipation component, the output end of water pump 3 is connected with delivery pipe 4, filter box 7 is fixedly installed inside frame 1, and reflux pipe 8 is installed in one side of filter box 7, and the other side of filter box 7 is communicated with water storage tank 2 by pipeline, square frame 10 is provided in filter box 7, slot 9 corresponding with square frame 10 is provided on filter box 7, and one side of square frame 10 extends to the inside of slot 9, sealing ring 12 is provided around square frame 10, and sealing ring 12 is used to seal the gap between square frame 10 and slot 9, filter screen 11 is fixedly installed in square frame 10, and positioning component for limiting square frame 10 is provided on filter box 7, when using CNC machine tool electric spindle cooling device to cool CNC machine tool electric spindle, the coolant in the inside of water storage tank 2 is extracted by the work of water pump 3, water pump 3 transports coolant to enter the inside of delivery pipe 4, delivery pipe 4 is communicated with the heat dissipation pipe of CNC machine tool electric spindle, after coolant flows into the inside of heat dissipation pipe, heat generated during the operation of CNC machine tool electric spindle can be absorbed and carried by heat dissipation pipe, to realize the purpose of heat dissipation of CNC machine tool electric spindle, the other end of heat dissipation pipe is communicated with reflux pipe 8, after coolant enters the inside of filter box 7, coolant will flow through square frame 10, filter screen 11 can filter the impurities carried by coolant, to realize the purpose of filtering coolant, avoid that coolant carries impurities, blocks the water pipe and other components in cooling system, affects cooling effect, reduces heat conduction efficiency, when removing the impurities filtered, after square frame 10 is no longer limited by moving positioning component, pull square frame 10, filter screen 11 can be moved to outside, to clean the impurities filtered by filter screen 11, facilitate to remove the impurities filtered.

[0021] Please refer to Figure 1 and Figure 2 , heat dissipation component includes heat conduction plate 5 and heat dissipation fin 6, heat conduction plate 5 is arranged at the top of frame 1, and heat conduction plate 5 is attached to the top of water storage tank 2, and a plurality of heat dissipation fins 6 are arrayed installed on heat conduction plate 5, after coolant enters the inside of water storage tank 2, heat is transferred to heat conduction plate 5 by water storage tank 2, and heat is transferred to heat dissipation fin 6, and the efficiency of heat dissipation can be improved by heat dissipation fin 6.

[0022] Please refer to Figure 1 and Figure 3The positioning assembly comprises a limiting hole 13, a threaded hole 14 and a positioning bolt 15. The limiting hole 13 is arranged on the top of the square frame 10. The threaded hole 14 is arranged on the filter box 7 and is concentric with the limiting hole 13. The positioning bolt 15 is threadedly connected in the threaded hole 14 and extends into the limiting hole 13. The positioning bolt 15 is moved by rotating the threaded hole 14. When the bottom end of the positioning bolt 15 moves out of the limiting hole 13, the square frame 10 is no longer limited, so that the square frame 10 can be pulled to move. The groove 9 facilitates the movement of the square frame 10 to the outside.

[0023] Please refer to Figure 1 and Figure 2 The frame 1 is embedded with a shunt groove 16. The shunt groove 16 is arrayed with exhaust holes 17. The frame 1 provides mounting space for the shunt groove 16. The shunt groove 16 provides mounting space for the exhaust holes 17. The air in the shunt groove 16 flows to the outside through the exhaust holes 17. The wind power discharged by the exhaust holes 17 flows through the heat dissipation fins 6, thereby improving the heat dissipation efficiency of the heat dissipation fins 6.

[0024] Please refer to Figure 1 and Figure 4 The frame 1 is fixedly installed with a wind box 18. The wind box 18 is fixedly installed with a fan 19. The output end of the fan 19 is connected with an output pipe 20. One end of the output pipe 20 is connected with the shunt groove 16. A battery assembly 21 is electrically connected with the fan 19. The frame 1 provides mounting space for the wind box 18. The fan 19 generates wind power. The wind power flows into the output pipe 20 and then flows into the shunt groove 16 through the output pipe 20.

[0025] Please refer to Figure 1 The frame 1 is fixedly installed with a controller 22. The controller 22 is electrically connected with the water pump 3 and the fan 19. The controller 22 controls the operation of the water pump 3 and the fan 19.

[0026] The working principle is that when the cooling device for the electric spindle of the numerical control machine tool is used to cool the electric spindle of the numerical control machine tool, the water pump 3 works to extract the cooling liquid in the water storage tank 2, the water pump 3 delivers the cooling liquid into the conveying pipe 4, the conveying pipe 4 is communicated with the heat dissipation pipe of the electric spindle of the numerical control machine tool, the cooling liquid flows into the heat dissipation pipe, and the heat dissipation pipe can absorb and carry the heat generated during the operation of the electric spindle of the numerical control machine tool, so that the electric spindle of the numerical control machine tool is cooled, one end of the heat dissipation pipe is communicated with the return pipe 8, the cooling liquid flows through the square frame 10 after entering the filter tank 7, the filter screen 11 filters the impurities carried by the cooling liquid, so that the cooling liquid is filtered, the impurities carried by the cooling liquid are prevented from blocking the water pipes and other components in the cooling system, the cooling effect is affected, the heat conduction efficiency is reduced, the impurities are removed, the positioning bolt 15 is rotated, the positioning bolt 15 is moved through the threaded hole 14, the square frame 10 is no longer limited after the bottom end of the positioning bolt 15 moves out of the limiting hole 13, so that the square frame 10 can be pulled to move, the square frame 10 is moved to the outside through the groove 9, the filter screen 11 is moved to the outside, so that the impurities filtered by the filter screen 11 can be cleaned, the impurities are removed, the fan 19 works to generate wind power, the wind power flows into the output pipe 20, the wind power flows into the distribution groove 16 through the output pipe 20, the air in the distribution groove 16 flows to the outside through the exhaust hole 17, the wind power discharged from the exhaust hole 17 flows through the heat dissipation fins 6, so that the heat dissipation efficiency of the heat dissipation fins 6 is improved, the heat dissipation efficiency of the cooling liquid is improved, and the cooling effect of the electric spindle of the numerical control machine tool is affected.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and it is intended to embrace all changes falling within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A cooling device for an electric spindle of a numerically controlled machine tool, comprising a frame (1), characterized in that: The frame (1) is internally fixedly installed with a water storage tank (2), a battery assembly (21), a water pump (3), and the battery assembly (21) is electrically connected with the water pump (3), the input end of the water pump (3) is communicated with the water storage tank (2), the top of the frame (1) is provided with a heat dissipation assembly, the output end of the water pump (3) is connected with a conveying pipe (4), the frame (1) is internally fixedly installed with a filter box (7), one side of the filter box (7) is installed with a return pipe (8), the other side of the filter box (7) is communicated with the water storage tank (2) through a pipeline, the filter box (7) is internally provided with a square frame (10), the filter box (7) is provided with a groove (9) corresponding to the square frame (10), and one side of the square frame (10) extends into the groove (9), the square frame (10) is surrounded by a sealing ring (12), and the sealing ring (12) is used for sealing the gap between the square frame (10) and the groove (9), the square frame (10) is internally fixedly installed with a filter screen (11), and the filter box (7) is provided with a positioning assembly for limiting the square frame (10).

2. A cooling device for an electric spindle of a numerically controlled machine tool according to claim 1, characterized in that: The heat dissipation assembly comprises a heat conduction plate (5) and a heat dissipation fin (6), the heat conduction plate (5) is arranged on the top of the frame (1), and the heat conduction plate (5) is attached to the top of the water storage tank (2), and a plurality of heat dissipation fins (6) are arrayed on the heat conduction plate (5).

3. A cooling device for an electric spindle of a numerically controlled machine tool according to claim 2, characterized in that: The positioning assembly comprises a limiting hole (13), a threaded hole (14) and a positioning bolt (15), the limiting hole (13) is arranged on the top of the square frame (10), the threaded hole (14) is arranged on the filter box (7), and the threaded hole (14) is concentrically arranged with the limiting hole (13), and the positioning bolt (15) is threadedly connected in the threaded hole (14), and one end of the positioning bolt (15) extends into the limiting hole (13).

4. A cooling device for an electric spindle of a numerically controlled machine tool according to claim 3, characterized in that: The frame (1) is internally inlaid with a shunt groove (16), and a plurality of exhaust holes (17) are arrayed on the shunt groove (16).

5. A cooling device for an electric spindle of a numerically controlled machine tool according to claim 4, characterized in that: The frame (1) is fixedly installed with a wind box (18), the wind box (18) is internally fixedly installed with a fan (19), the output end of the fan (19) is connected with an output pipe (20), one end of the output pipe (20) is communicated with the shunt groove (16), and the battery assembly (21) is electrically connected with the fan (19).

6. A cooling device for an electric spindle of a numerically controlled machine tool according to claim 5, characterized in that: The frame (1) is fixedly installed with a controller (22), and the controller (22) is electrically connected with the water pump (3) and the fan (19) respectively.

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