A cooling liquid circulation filtering device for intelligent CNC machine tools

Abstract

The present invention relates to the technical field of coolant circulation filtration, and in particular to a coolant circulation filtration device for intelligent CNC machine tools. A machine tool is provided, the machine tool is provided with a liquid storage shell, the machine tool is provided with a collection tank, the liquid storage shell is connected to the collection tank through a lifting pump and a pipeline, the liquid storage shell is installed with a filter screen 1, the liquid storage shell is installed with a water pump 1, the water pump 1 is connected to the inner side of the filter screen 1 through a pipeline 3, and the pipeline 3 is fixed with a blocking plate through an elastic member. The present invention guides the filtered coolant to the inner side of the filter screen 1 through the pipeline 3. When the filter screen 1 is blocked, the filter screen 1 can be cleaned without disassembling the device, which reduces the cumbersome cleaning steps and slows down the frequency of disassembly, cleaning and replacement of the filter screen 1, thereby reducing the cost of using the device and improving the efficiency of metal parts processing and cooling.

Description

Technical Field

[0001] The invention relates to the technical field of coolant circulation filtration, and in particular to a coolant circulation filtration device for an intelligent numerically controlled machine tool. Background Art

[0002] The coolant circulation filter device of the intelligent CNC machine tool is a device used to remove metal debris from the coolant. In the process of using the machine tool to grind metal, a large amount of heat will be generated, which requires continuous heat exchange at the grinding point through the coolant. In the heat exchange process, a large amount of ground metal debris will be brought into the coolant. If the coolant containing metal debris is used directly, friction will occur between the metal debris in the coolant and the object being ground, thereby affecting the cooling efficiency of the coolant on the object being ground. If the coolant containing metal debris is no longer used directly, but new coolant is continuously added, the cost of grinding metal parts will increase. Therefore, the existing coolant will be recycled after filtering, and the traditional filtering method will cause the filter to be blocked during long-term use, thereby affecting the flow rate of the coolant. At this time, the operator is required to disassemble the cooling equipment, and then clean the removed filter, and then install and use the filter, which will cause cumbersome cleaning steps, thereby affecting the processing efficiency of metal parts. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a coolant circulation filtering device for an intelligent CNC machine tool.

[0004] The technical solution is as follows: A coolant circulation filtration device for an intelligent CNC machine tool, comprising a machine tool, the machine tool is provided with a liquid storage shell, the machine tool is provided with a collection tank, the liquid storage shell is connected to the collection tank through a lift pump and a pipeline, the liquid storage shell is installed with a filter screen 1 near the position where it is connected to the lift pump pipeline, the filter screen 1 is annular, the inner side of the filter screen 1 is connected to the liquid storage shell through a pipeline 1, a chamber connected to the lift pump pipeline is arranged between the outer side of the filter screen 1 and the liquid storage shell, and the liquid storage shell is installed A water pump 1 is installed, and the water pump 1 is connected with the liquid storage shell through a pipe 2, and the water pump 1 is connected with the inner side of the filter screen 1 through a pipe 3. The pipe 3 is fixedly connected with a sealing plate through an elastic member, which seals both the pipe and the pipe 1. The chamber of the liquid storage shell is connected with the collection tank through the water pump 2 and the pipe. The collection tank is installed with a filter screen 2 that separates the pipe connection between the water pump 1 and the lifting pump and the pipe connection between the water pump 2. A high-pressure pump for connecting the liquid storage shell with the machine tool through a pipe is installed on the liquid storage shell.

[0005] Advantageously, a filter screen three is slidingly connected in a limited position in the liquid storage shell, the holes of the filter screen one and the holes of the filter screen two are both larger than the holes of the filter screen three, the holes of the filter screen three gradually increase from top to bottom, and the pipe one is sealingly and slidingly connected to the filter screen three.

[0006] Advantageously, the second pipe is located above the third filter screen, and the lower side pipe opening of the first pipe is located below the third filter screen.

[0007] Advantageously, a float 1 is provided in the liquid storage shell, the float 1 is located above the filter screen 3, the float 1 is fixedly connected to a connecting rod slidably connected to the liquid storage shell, the liquid storage shell is fixedly connected and connected to a liquid inlet pipe, the liquid inlet pipe is connected to an external liquid storage tank, the liquid inlet pipe is installed with a regulating valve 1, and the regulating valve 1 and the connecting rod are transmitted through a first transmission member.

[0008] Advantageously, the high-pressure pump is located above the filter screen three, the filter screen three is fixedly connected to a magnetic block, the liquid storage housing is fixedly connected to an electrically controlled telescopic rod, and the telescopic end of the electrically controlled telescopic rod is fixedly connected to a connecting frame fixedly connected to the filter screen three.

[0009] Advantageously, it further comprises an oil extraction pipe, which is fixedly connected to and communicated with the collection tank, and the oil extraction pipe is fixedly connected to a second float.

[0010] Advantageously, the machine tool is fixedly connected and communicated with a drainage pipe at a position close to the collecting tank, the drainage pipe is fixedly connected and communicated with a guide pipe, a rotating blade fan is rotatably connected in the collecting tank, the rotating blade fan is fixedly connected to a reciprocating telescopic rod rotatably connected to the collecting tank through a rotating shaft, a limiting portion is provided in the fixed portion of the reciprocating telescopic rod, the telescopic portion of the reciprocating telescopic rod is provided with a limiting groove that cooperates with the limiting portion, the telescopic end of the reciprocating telescopic rod is fixedly connected to a limiting cover, and the oil pumping pipe is located in the limiting cover.

[0011] Advantageously, the opening of the guide tube faces downward, the opening of the guide tube is located above the rotating blade, and the opening of the guide tube is not located on the same vertical plane as the rotating shaft of the rotating blade.

[0012] Advantageously, a fixed plate is further included, which is fixedly connected to the collecting tank, the second filter screen is slidably connected to the fixed plate, an elastic member is fixedly connected between the second filter screen and the fixed plate, the fixed plate is fixedly connected to a first hydraulic telescopic rod, the telescopic end of the first hydraulic telescopic rod is fixedly connected to the second filter screen, a second hydraulic telescopic rod is fixedly connected to a position of the collecting tank away from the lifting pump, which is connected to the first hydraulic telescopic rod through a conduit, hydraulic oil is provided in the first hydraulic telescopic rod, the second hydraulic telescopic rod and the conduit, a slag discharge pipe is fixedly connected to and connected to a position of the collecting tank close to the second hydraulic telescopic rod, a regulating valve second is installed on the slag discharge pipe, and transmission is transmitted between the regulating valve second and the telescopic end of the second hydraulic telescopic rod via a second transmission member.

[0013] Advantageously, the inner diameter of the liquid discharge pipe and the inner diameter of the second water pump pipe are both smaller than the inner diameter of the slag discharge pipe.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention guides the filtered coolant to the inner side of the filter screen 1 through the pipeline 3. When the filter screen 1 is blocked, the filter screen 1 can be cleaned without disassembling the device, thereby reducing the cumbersome cleaning steps and slowing down the frequency of disassembly, cleaning and replacement of the filter screen 1, thereby reducing the cost of using the device and improving the efficiency of metal parts processing and cooling;

[0015] 2. Use filter 3 to isolate small metal debris on its lower side, and use the magnetic block to absorb the metal debris in the coolant on the lower side of filter 3 to prevent the accumulation of small debris from clogging filter 3;

[0016] 3. The buoyancy of the second float ball makes the pipe mouth of the pumping pipe always located at the coolant surface, and then the telescopic end of the reciprocating telescopic rod is used to drive the pumping pipe to move back and forth through the limit cover, thereby increasing the range of the pumping pipe to collect grease in the collection pool, thereby preventing the upper layer of grease far away from the pumping pipe from being unable to be extracted, and preventing the upper layer of coolant near the pumping pipe from being excessively extracted when the pumping pipe is continuously in one position for extraction, resulting in waste of coolant;

[0017] 4. Through the automatic opening and closing of the regulating valve 2, during the circulation of the coolant, the filter 2 is made to move back and forth continuously after being blocked, temporarily shaking off the metal debris on the filter 2, increasing the coolant flow rate through the filter 2, thereby reducing the degree of blockage during the use of the filter. When the coolant stops circulating, the regulating valve 2 is opened so that the filter 2 can be cleaned without being dismantled, reducing the cumbersome steps of using the device, thereby improving the efficiency of metal parts processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a three-dimensional structural cross-sectional view of the liquid storage housing of the present invention;

[0020] Figure 3 It is a three-dimensional structural cross-sectional view of the liquid storage housing and the filter screen 1 of the present invention;

[0021] Figure 4 It is a three-dimensional structural cross-sectional view of the collection pool of the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the connecting rod, the liquid inlet pipe and the regulating valve 1 of the present invention;

[0023] Figure 6 It is a three-dimensional structural cross-sectional view of the liquid storage housing and the filter screen 3 of the present invention;

[0024] Figure 7 It is a three-dimensional structural cross-sectional view of the collecting tank and the fixing plate of the present invention;

[0025] Figure 8 It is a three-dimensional structural cross-sectional view of the limiting cover of the present invention;

[0026] Fig. 9 It is a three-dimensional structural cross-sectional view of the reciprocating telescopic rod of the present invention;

[0027] Fig.10 It is a three-dimensional structural schematic diagram of the slag discharge pipe and the regulating valve 2 of the present invention.

[0028] The markings in the accompanying drawings are as follows: 1-machine tool, 101-liquid storage shell, 102-collection tank, 103-lifting pump, 104-filter screen 1, 1041-pipeline 1, 105-water pump 1, 106-pipeline 2, 107-pipeline 3, 108-blocking plate, 109-water pump 2, 110-filter screen 2, 2-filter screen 3, 4-float 1, 401-connecting rod, 402-liquid inlet pipe, 403-regulating valve 1, 5-high Pressure pump, 501-magnetic block, 502-electrically controlled telescopic rod, 503-connecting frame, 6-oil pumping pipe, 601-floating ball 2, 7-liquid discharge pipe, 701-guide pipe, 702-rotating blade fan, 703-reciprocating telescopic rod, 7031-limiting part, 7032-limiting groove, 704-limiting cover, 9-fixed plate, 901-first hydraulic telescopic rod, 902-second hydraulic telescopic rod, 903-slag discharge pipe, 904-regulating valve 2. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Existing coolants are recycled after being filtered, but traditional filtering methods will cause the filter to become clogged during long-term use, thus affecting the flow rate of the coolant. At this time, the operator is required to disassemble the cooling equipment, clean the removed filter, and then install and use the filter, which will make the cleaning steps cumbersome and affect the processing efficiency of metal parts.

[0031] Embodiment 1: A cooling liquid circulation filtering device for an intelligent CNC machine tool, such as Figure 1-Figure 4 As shown, the machine tool 1 includes a liquid storage housing 101 on the left side of the machine tool 1, a control panel is installed on the front side of the liquid storage housing 101, and the machine tool 1 is provided with a collection tank 102. The liquid storage housing 101 is connected to the collection tank 102 through a lift pump 103 and a pipeline. The lift pump 103 is electrically connected to the control panel. A filter screen 104 is installed on the upper part of the liquid storage housing 101 near the position where it is connected to the lift pump 103 pipeline. The filter screen 104 is annular, and the inner side of the filter screen 104 is connected through a pipeline 103. 041 is connected to the liquid storage housing 101, a chamber connected to the pipeline of the lift pump 103 is arranged between the outer side of the filter screen 104 and the liquid storage housing 101, the chamber is connected to the pipeline of the lift pump 103, the liquid storage housing 101 is equipped with a water pump 105 electrically connected to the control panel, the water pump 105 is connected to the liquid storage housing 101 through the pipeline 2 106, the water pump 105 is connected to the inner side of the filter screen 104 through the pipeline 3 107, and the pipeline 3 107 is fixedly connected to it and the pipeline 103 through an elastic member 041 are both blocked by the blocking plate 108, wherein the elastic member is a tension spring. During normal use of the device, the blocking plate 108 blocks the pipeline 3 107. At this time, the coolant passes through the filter screen 104 and enters the pipeline 1041. After the filter screen 104 is blocked, the coolant passes through the pipeline 3 107 and squeezes the blocking plate 108. The blocking plate 108 blocks the pipeline 1041. The chamber of the liquid storage shell 101 is connected to the collection tank 102 through the water pump 2 109 and the pipeline. The collection tank 102 A filter screen 110 is installed inside to separate the pipe connection between the collecting tank 102 and the lifting pump 103 and the pipe connection between the collecting tank 102 and the water pump 109. The filter screen 110 divides the collecting tank 102 into two parts, the left half of the collecting tank 102 is connected to the pipe of the lifting pump 103, and the right half of the collecting tank 102 is connected to the pipe of the water pump 109. A high-pressure pump 5 is installed on the liquid storage shell 101 for connecting the liquid storage shell 101 with the machine tool 1 through a pipe. The high-pressure pump 5 is electrically connected to the control panel.

[0032] like Figure 2 and Figure 6As shown, a filter screen 3 2 is limitedly and slidably connected inside the liquid storage shell 101, the holes of the filter screen 104 and the holes of the filter screen 2 110 are both larger than the holes of the filter screen 3 2, the holes of the filter screen 3 2 are used to allow the coolant to penetrate from the bottom to the upper side thereof, the holes of the filter screen 3 2 gradually increase from the top to the bottom, and are used to increase the penetration speed of the coolant, the pipe 1 041 is sealingly and slidably connected to the filter screen 3 2, the pipe 2 106 is located above the filter screen 3 2, and the lower side pipe mouth of the pipe 1 1041 is located below the filter screen 3 2, and is used to intercept metal debris on the lower side of the filter screen 3 2, and use the coolant on the upper side of the filter screen 3 2 to backwash the filter screen 1 04.

[0033] like Figure 2 and Figure 5 As shown, a float 4 is arranged in the liquid storage housing 101, and the float 4 is located above the filter screen 3 2. The float 4 is fixedly connected to a connecting rod 401 which is slidably connected to the liquid storage housing 101. The liquid storage housing 101 is fixedly connected and connected to a liquid inlet pipe 402, and the liquid inlet pipe 402 is connected to an external liquid storage tank, wherein the external liquid storage tank is not shown in the figure. The liquid inlet pipe 402 is installed with a regulating valve 403, and the regulating valve 403 is a ball valve. Figure 1 From the left view, when the valve of the regulating valve 403 rotates counterclockwise, the flow of the regulating valve 403 gradually decreases until it is closed, and when the valve of the regulating valve 403 rotates clockwise, the flow of the regulating valve 403 gradually increases. The regulating valve 403 and the connecting rod 401 are transmitted through the first transmission member, wherein the first transmission member is composed of mutually meshing gears and racks, the gear is fixedly connected to the valve of the regulating valve 403, and the rack is fixedly connected to the connecting rod 401.

[0034] like Figure 2 and Figure 6 As shown, the high-pressure pump 5 is located above the filter mesh three 2, and is used to extract the coolant on the upper side of the filter mesh three 2. A magnetic block 501 is fixedly connected to the lower side of the filter mesh three 2, and the liquid storage shell 101 is fixedly connected to an electrically controlled telescopic rod 502 electrically connected to the control panel, and the telescopic end of the electrically controlled telescopic rod 502 is fixedly connected to a connecting frame 503 fixedly connected to the filter mesh three 2.

[0035] When the operator needs to use the present device to circulate and filter the coolant in the intelligent CNC machine tool, the operator turns on the machine tool 1 through the control panel, and the coolant used by the machine tool 1 during operation carries metal debris into the collection tank 102, and then the operator controls the lifting pump 103 to start through the control panel, and the lifting pump 103 draws the coolant in the collection tank 102 to the outside of the filter screen 104 and between the liquid storage shell 101, and the coolant filters the metal debris through the filter screen 104. After the coolant flows through the filter screen 104, the coolant directly flows into the bottom of the liquid storage shell 101 through the pipe 1041, and the filter screen 3 2 filters the fine impurities in the coolant, and the coolant slowly penetrates to the upper side of the filter screen 3 2. The operator turns on the high-pressure pump 5 through the control panel, and the high-pressure pump 5 circulates the coolant on the upper side of the filter screen 3 2 back to the machine tool 1, so as to realize the recycling of the coolant.

[0036] When the filter screen 104 is clogged, the operator turns off the machine tool 1, the lifting pump 103 and the high-pressure pump 5 through the control panel, and simultaneously turns on the water pump 105, the water pump 2 109 and the electric control telescopic rod 502. First, the water pump 105 extracts the coolant located on the upper side of the filter screen 3 2 in the liquid storage shell 101 through the pipe 2 106, so that the coolant flows into the inner side of the filter screen 104 through the pipe 3 107. The coolant flowing out of the pipe 3 107 squeezes the sealing plate 108 to move downward, and the elastic member of the sealing plate 108 stretches , so that the sealing plate 108 moves downward and seals the upper pipe opening of the pipe 1041. At this time, the coolant can only flow from the inside to the outside through the holes of the filter screen 104, and the holes of the filter screen 104 are backwashed. The coolant carries the impurities attached to the holes of the filter screen 104 and is pumped into the collection tank 102 by the water pump 2 109, reducing the degree of blockage of the holes on the filter screen 104 by metal debris, thereby reducing the frequency of disassembly, cleaning and replacement of the filter screen 104, and further reducing the cost of using the device.

[0037] After the coolant after backwashing flows into the collection tank 102, the coolant flows from right to left through the filter screen 110 to filter the impurities in the coolant. When the operator needs to stop the backwashing operation on the filter screen 104, the operator turns off the water pump 105, the water pump 109 and the electric control telescopic rod 502 through the control panel, and repeats the above steps to start the machine tool 1, the lifting pump 103 and the high-pressure pump 5 through the control panel again, so that the coolant is again pumped into the liquid storage shell 101 through the lifting pump 103 and participates in the above cycle again, thereby achieving the cleaning of the filter screen 104 without disassembling the device, reducing cumbersome cleaning steps, and thereby improving the efficiency of metal parts processing and cooling.

[0038] During the backwashing process of the filter 104, the operator turns on the electric telescopic rod 502 through the control panel, so that the telescopic end of the electric telescopic rod 502 gradually moves downward, and the telescopic end of the electric telescopic rod 502 drives the filter 3 2 to move downward through the connecting frame 503, squeezes the coolant on the lower side of the filter 3 2 into its upper side, and isolates small-volume metal debris on the lower side of the filter 3 2. The filter 3 2 drives the magnetic block 501 on its lower side to move downward, absorbs the metal debris in the coolant on the lower side of the filter 3 2, and prevents the accumulation of small-volume debris from clogging the filter 3 2.

[0039] During use of the device, the float 4 uses its own buoyancy to always keep it flush with the liquid surface of the coolant in the liquid storage shell 101. When the amount of coolant in the liquid storage shell 101 is depleted, the float 4 moves downward and drives the connecting rod 401 to move downward. The connecting rod 401 transmits the regulating valve 403 through the first transmission member, so that the regulating valve 403 is opened for circulation, and the external liquid storage tank injects new coolant into the liquid storage shell 101 through the liquid inlet pipe 402. After the amount of coolant gradually increases, the float 4 moves upward under the influence of buoyancy until it is in contact with the upper side surface of the liquid storage shell 101. At this time, the float 4 transmits the regulating valve 403 through the connecting rod 401 and the first transmission member, so that the regulating valve 403 is closed, thereby realizing real-time replenishment of the coolant in the liquid storage shell 101 and maintaining sufficient coolant.

[0040] When the operator stops using the device, the operator turns off the water pump 1 105, the water pump 2 109 and the electric telescopic rod 502 through the control panel. If it is necessary to clean the liquid storage shell 101, the magnetic block 501 is taken out and the metal debris adhered to it is removed. Then the operator removes the metal debris adhered to the filter screen 2 110, and finally cleans the device for the next use.

[0041] During the processing of existing metal parts, a large amount of grease often adheres to the metal parts. If the cooling medium used at this time is non-oily coolants such as water or water-soluble coolants, some of the grease will be washed down by the water or water-soluble coolant and brought into its circulation system. Excessive accumulation of grease will cause the thermal conductivity of water and water-soluble coolant to decrease, thereby affecting the heat exchange efficiency of water and water-soluble coolant.

[0042] Embodiment 2: Based on embodiment 1, Figure 4 and Figure 8 As shown, it also includes an oil extraction pipe 6, which is fixedly connected to and communicated with the collection tank 102. The oil extraction pipe 6 is fixedly connected to a float 601. The float 601 uses its own buoyancy to ensure that the upper side of the oil extraction pipe 6 is always flush with the liquid level of the coolant in the collection tank 102.

[0043] like Figure 7-Figure 9 As shown, the front side of the machine tool 1 is fixedly connected and communicated with a drain pipe 7, the drain pipe 7 is fixedly connected and communicated with a guide pipe 701, a rotary blade fan 702 is rotatably connected in the collection tank 102, the opening of the guide pipe 701 faces downward, the opening of the guide pipe 701 is located above the rotary blade fan 702, and the opening of the guide pipe 701 is not located on the same vertical plane as the rotating shaft of the rotary blade fan 702, and is used to directly discharge the coolant to the blades on the front side of the rotary blade fan 702, thereby driving the rotary blade fan 702. 02 rotates, the rotating blade fan 702 is fixedly connected to a reciprocating telescopic rod 703 rotatably connected to the collection tank 102 through a rotating shaft, a limiting portion 7031 is arranged in the fixed portion of the reciprocating telescopic rod 703, the telescopic portion of the reciprocating telescopic rod 703 is provided with a limiting groove 7032 which cooperates with the limiting portion 7031, and the limiting groove 7032 is in the shape of an inclined closed circular groove, the telescopic end of the reciprocating telescopic rod 703 is fixedly connected to the limiting cover 704, and the oil extraction pipe 6 is located in the limiting cover 704.

[0044] During the operation of the machine tool 1, the coolant carrying metal debris flows into the guide pipe 701 through the drain pipe 7, and the guide pipe 701 discharges the coolant into the collection tank 102. The coolant passes through the filter screen 110 and flows to the left side of the collection tank 102 and circulates through the above embodiment. After the coolant is discharged into the collection tank 102, the float 601 uses its own buoyancy to ensure that the float itself and the pipe opening on the upper side of the oil extraction pipe 6 are always located on the upper liquid surface of the coolant in the collection tank 102. After the grease generated during the operation of the machine tool 1 enters the coolant, the grease floats on the surface of the coolant, and then flows into the oil extraction pipe 6 and is collected by the operator, thereby preventing excessive grease from reducing the thermal conductivity of the coolant, thereby affecting the heat exchange efficiency of the coolant.

[0045] When the guide pipe 701 discharges the coolant into the collection tank 102, the coolant flows downward and drives the rotating blade fan 702 to rotate, and the rotating blade fan 702 drives the reciprocating telescopic rod 703 to rotate, and the fixed part of the reciprocating telescopic rod 703 drives the limiting part 7031 to rotate, and the limiting part 7031 moves along the limiting groove 7032, so that the telescopic end of the reciprocating telescopic rod 703 continuously reciprocates and reciprocates, and the telescopic end of the reciprocating telescopic rod 703 drives the limiting cover 704 to move back and forth left and right, and the limiting cover 704 drives the oil extraction pipe 6 and the float 601 to move back and forth left and right, thereby increasing the range of the oil extraction pipe 6 to collect grease in the collection tank 102, thereby preventing the upper layer of grease far away from the oil extraction pipe 6 from being unable to be extracted, and avoiding the upper layer of coolant near the oil extraction pipe 6 from being excessively extracted when the oil extraction pipe 6 is continuously in one position for extraction, resulting in waste of coolant.

[0046] Embodiment 3: Based on embodiment 2, Figure 4 , Figure 7 , Figure 8 and Fig.10As shown, it also includes a fixed plate 9, which is fixedly connected to the middle position of the upper part of the collecting tank 102, and the second filter screen 110 is slidably connected to the fixed plate 9. An elastic member is fixedly connected between the second filter screen 110 and the fixed plate 9, wherein the elastic member is a compression spring, and the fixed plate 9 is fixedly connected to a first hydraulic telescopic rod 901, and the telescopic end of the first hydraulic telescopic rod 901 is fixedly connected to the second filter screen 110. The right side of the collecting tank 102 is fixedly connected to a second hydraulic telescopic rod 902 connected to the first hydraulic telescopic rod 901 through a conduit, and hydraulic oil is provided in the first hydraulic telescopic rod 901, the second hydraulic telescopic rod 902 and the conduit, and a slag discharge pipe 903 is fixedly connected and connected to the position of the collecting tank 102 near the second hydraulic telescopic rod 902, and the slag discharge pipe 903 is installed with a regulating valve 904, wherein the regulating valve 904 is a ball valve. Figure 1 Taking the top view as a reference, when the valve of the regulating valve 2 904 rotates counterclockwise, the flow of the regulating valve 2 904 gradually increases, and when the valve of the regulating valve 2 904 rotates clockwise, the flow of the regulating valve 2 904 gradually decreases until it is closed. The regulating valve 2 904 and the telescopic end of the second hydraulic telescopic rod 902 are transmitted through the second transmission member, wherein the second transmission member is composed of a gear rack, the gear is fixedly connected to the valve of the regulating valve 2 904, and the rack is fixedly connected to the telescopic end of the second hydraulic telescopic rod 902. The inner diameter of the discharge pipe 7 and the inner diameter of the water pump 2 109 pipeline are both smaller than the inner diameter of the slag discharge pipe 903. During the operation of the device, by opening the regulating valve 2 904, the coolant in the collection tank 102 can flow from left to right, thereby backwashing the filter screen 2 110.

[0047] After the filter screen 110 is clogged, the resistance of the coolant when passing through the filter screen 110 increases, so that the filter screen 110 is pushed by the coolant and moves to the left, and the filter screen 110 squeezes its elastic member to contract. At the same time, the filter screen 110 squeezes the telescopic end of the first hydraulic telescopic rod 901 to move to the left, and the telescopic end of the first hydraulic telescopic rod 901 contracts and squeezes its internal hydraulic oil into the second hydraulic telescopic rod 902 through the conduit, so that the telescopic end of the second hydraulic telescopic rod 902 extends, and the telescopic end of the second hydraulic telescopic rod 902 transmits the regulating valve 904 through the second transmission member, and the valve of the regulating valve 904 rotates, and the regulating valve 90 4 is opened and circulated, so that the slag discharge pipe 903 circulates and discharges the coolant in the collection tank 102, and the coolant in the collection tank 102 flows from left to right, so that the second filter screen 110 moves to the right, and the elastic member of the second filter screen 110 rebounds and resets, and then the telescopic end of the first hydraulic telescopic rod 901 is reset, and the telescopic end of the second hydraulic telescopic rod 902 is reset and transmits the regulating valve 2 904 through the second transmission member, so that the regulating valve 2 904 is closed, and then the above operation is repeated continuously, so that the second filter screen 110 continuously moves back and forth, and the impurities attached thereto are shaken off, so as to prevent the second filter screen 110 from being blocked during the use of the machine tool 1, thereby affecting the circulation of the coolant.

[0048] When the device is stopped, the operator pushes the filter screen 110 to the left, so that the regulating valve 904 is opened through the above steps, and the coolant in the collection tank 102 backwashes the filter screen 110 from left to right, and the coolant carries the impurities in the collection tank 102 out of the slag discharge pipe 903.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A coolant circulation filtration device for an intelligent numerically controlled machine tool, comprising a machine tool (1), wherein the machine tool (1) is provided with a liquid storage shell (101), the machine tool (1) is provided with a collection tank (102), the liquid storage shell (101) and the collection tank (102) are connected via a lift pump (103) and a pipeline, a filter screen (104) is installed near the position where the liquid storage shell (101) is connected to the pipeline of the lift pump (103), the filter screen (104) is annular, the inner side of the filter screen (104) is connected to the liquid storage shell (101) via a pipeline (1041), and a chamber connected to the pipeline of the lift pump (103) is provided between the outer side of the filter screen (104) and the liquid storage shell (101), characterized in that: It also includes a water pump 1 (105), the water pump 1 (105) being mounted on the liquid storage housing (101), the water pump 1 (105) being connected to the liquid storage housing (101) via a pipe 2 (106), the water pump 1 (105) being connected to the inner side of the filter screen 1 (104) via a pipe 3 (107), the pipe 3 (107) being fixedly connected to a blocking plate (108) which blocks both the pipe 3 (107) and the pipe 1 (1041) via an elastic member, The chamber of the liquid storage housing (101) is connected to the collection tank (102) via a second water pump (109) and a pipeline. A second filter screen (110) is installed in the collection tank (102) to separate the pipe connection between the collection tank and the lift pump (103) and the pipe connection between the collection tank and the second water pump (109). A high-pressure pump (5) is installed on the liquid storage housing (101) to connect the liquid storage housing (101) and the machine tool (1) via a pipeline. A filter screen three (2) is slidably connected in a limited position in the liquid storage housing (101); the holes of the filter screen one (104) and the holes of the filter screen two (110) are larger than the holes of the filter screen three (2); the holes of the filter screen three (2) gradually increase from top to bottom; and the pipe one (1041) is sealingly slidably connected to the filter screen three (2); The second pipe (106) is located above the third filter screen (2), and the lower pipe opening of the first pipe (1041) is located below the third filter screen (2); A float ball 1 (4) is arranged in the liquid storage shell (101), and the float ball 1 (4) is located above the filter screen 3 (2). The float ball 1 (4) is fixedly connected to a connecting rod (401) slidably connected to the liquid storage shell (101). The liquid storage shell (101) is fixedly connected to and communicated with a liquid inlet pipe (402), and the liquid inlet pipe (402) is communicated with an external liquid storage tank. A regulating valve 1 (403) is installed on the liquid inlet pipe (402), and transmission is transmitted between the regulating valve 1 (403) and the connecting rod (401) via a first transmission member; The high-pressure pump (5) is located above the filter screen three (2), the filter screen three (2) is fixedly connected to a magnetic block (501), the liquid storage housing (101) is fixedly connected to an electrically controlled telescopic rod (502), and the telescopic end of the electrically controlled telescopic rod (502) is fixedly connected to a connecting frame (503) fixedly connected to the filter screen three (2).

2. The coolant circulation filter device for intelligent CNC machine tools according to claim 1, characterized in that: It also includes an oil extraction pipe (6), the oil extraction pipe (6) is fixedly connected to and communicated with the collection pool (102), and the oil extraction pipe (6) is fixedly connected to a second float (601).

3. The coolant circulation filter device for intelligent CNC machine tools according to claim 2 is characterized in that: A drainage pipe (7) is fixedly connected to and communicated with a position of the machine tool (1) near the collection tank (102); the drainage pipe (7) is fixedly connected to and communicated with a guide pipe (701); a rotating blade fan (702) is rotatably connected in the collection tank (102); the rotating blade fan (702) is fixedly connected to a reciprocating telescopic rod (703) rotatably connected to the collection tank (102) via a rotating shaft; a limiting portion (7031) is provided in a fixed portion of the reciprocating telescopic rod (703); a limiting groove (7032) is provided on the telescopic portion of the reciprocating telescopic rod (703) that cooperates with the limiting portion (7031) in limiting position; a telescopic end of the reciprocating telescopic rod (703) is fixedly connected to a limiting cover (704); and the oil extraction pipe (6) is located in the limiting cover (704).

4. The coolant circulation filtration device for intelligent CNC machine tools according to claim 3 is characterized in that: The opening of the guide tube (701) faces downward, the opening of the guide tube (701) is located above the rotating blade fan (702), and the opening of the guide tube (701) is not located on the same vertical plane as the rotating shaft of the rotating blade fan (702).

5. The coolant circulation filter device for intelligent CNC machine tools according to claim 3 is characterized in that: It also includes a fixing plate (9), the fixing plate (9) being fixedly connected to the collecting tank (102), the second filter screen (110) being slidably connected to the fixing plate (9), an elastic member being fixedly connected between the second filter screen (110) and the fixing plate (9), the fixing plate (9) being fixedly connected to a first hydraulic telescopic rod (901), the telescopic end of the first hydraulic telescopic rod (901) being fixedly connected to the second filter screen (110), the collecting tank (102) being fixedly connected to a position away from the lifting pump (103) through a conduit. The first hydraulic telescopic rod (901) is connected to a second hydraulic telescopic rod (902); hydraulic oil is provided in the first hydraulic telescopic rod (901), the second hydraulic telescopic rod (902) and the conduit; a slag discharge pipe (903) is fixedly connected and connected to the collection tank (102) at a position close to the second hydraulic telescopic rod (902); a regulating valve 2 (904) is installed on the slag discharge pipe (903); a second transmission member is used for transmission between the regulating valve 2 (904) and the telescopic end of the second hydraulic telescopic rod (902).

6. The coolant circulation filtration device for intelligent CNC machine tools according to claim 5, characterized in that: The inner diameter of the liquid discharge pipe (7) and the inner diameter of the second water pump (109) pipe are both smaller than the inner diameter of the slag discharge pipe (903).

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