Machine tool chip filtering and processing device and method

Abstract

The present invention discloses a machine tool chip filtering and processing device and method, which relates to the field of filtering technology, including a cylinder and a cover body fixedly installed on the upper part of the cylinder, and also including a liquid inlet pipe and a liquid outlet pipe fixedly installed on the side of the cylinder; a first filter assembly and a second filter assembly are installed in the cylinder, the first filter assembly is used for the first step of filtering to remove large impurities in the chips, and the first filter assembly includes a baffle fixedly installed inside the cylinder; a filter cylinder is fixedly installed on the baffle. The advantages are: the present invention uses a mobile local backwashing method to clean the filter cylinder without stopping the filtering operation, which has the advantage of improving the filtering efficiency and better cleaning effect. In addition, during the backwashing movement, the telescopic ring can be prevented from sticking to the filter cylinder, effectively preventing the chips from re-entering the cylinder to cause excessive chip concentration in the cylinder, and further improving the filtering efficiency.

Description

Technical Field

[0001] The present invention relates to the field of filtering technology, and in particular to a machine tool chip filtering and processing device and method. Background Art

[0002] Cutting fluid is a liquid or liquid mixture used in the metal cutting process of machine tools. Its main function is to lubricate, cool and clean workpieces, tools and processing areas. In order to make the cutting fluid recyclable, it needs to be filtered.

[0003] The existing filtration uses a filter screen, which will be blocked and needs to be cleaned or replaced regularly. As the filtration proceeds, the filtration efficiency becomes slower and slower. Therefore, the publication number CN117282161B discloses a machine tool chip filtering and processing device, which includes a cylinder and a feed hopper connected to the left side of the cylinder, a discharge frame connected to the bottom of the cylinder, a discharge pipe fixedly connected to the right side of the cylinder, and an arc plate fixedly connected to the left side of the discharge pipe at even intervals. A guide ring is fixedly connected to the inner side of the cylinder along the circumferential direction, and a porous separation cylinder is rotatably connected to the inner side of the guide ring. The right side of the porous separation cylinder contacts the arc plate, and also includes an outer gear ring, an electric gear, a gear shaft, a rotating shaft, a brush roller, an air jet assembly and a material blocking assembly. The outer gear ring is fixedly mounted on the outside of the porous separation cylinder, and the gear shaft is rotatably connected to the left side of the cylinder, and the gear shaft is meshed with the outer gear ring. A rotating shaft is rotatably connected to the cylinder, and the rotating shaft is located below the gear shaft.

[0004] The above-mentioned filtering and processing device pours the cutting fluid into the porous separation cylinder through the feed hopper, and then starts the electric gear to rotate, so that the porous separation cylinder rotates to filter the debris in the cutting fluid. The cutting fluid after filtering the debris is discharged into the cylinder body, and the cutting fluid is discharged through the discharge frame. At the same time, the rotation of the brush roller can remove the debris attached to the inner wall of the porous separation cylinder to prevent the debris from clogging the porous separation cylinder and affecting the filtration, thereby improving the filtration effect.

[0005] However, although the above-mentioned use of a brush roller to remove debris on the porous separation cylinder has a certain cleaning effect, the porous separation cylinder has a certain thickness, and the debris stuck inside the porous separation cylinder cannot be removed well. The existing backwashing technology is used to clean the filter screen, but the filtering operation needs to be stopped during backwashing, which affects the filtering efficiency.

[0006] Therefore, a novel machine tool chip filtering and processing device and method can be used to solve the deficiencies of the prior art. Summary of the invention

[0007] The purpose of the present invention is to solve the problems existing in the prior art and to propose a machine tool chip filtering and processing device and method.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A machine tool chip filtering and processing device comprises a cylinder and a cover body fixedly mounted on the upper part of the cylinder, and also comprises a liquid inlet pipe and a liquid outlet pipe fixedly mounted on the side of the cylinder;

[0010] A first filter assembly and a second filter assembly are installed in the cylinder. The first filter assembly is used for the first step of filtering to remove large impurities in the chips. The first filter assembly includes a baffle fixedly installed inside the cylinder.

[0011] A filter cartridge is fixedly mounted on the baffle plate, a sealing plate is fixedly mounted on the top of the filter cartridge, a hole matching the filter cartridge is opened on the baffle plate, and a backwashing mechanism and a collecting mechanism matching the filter cartridge are mounted on the baffle plate.

[0012] Preferably, the second filter assembly is used for the second step of filtering to remove smaller impurities in the chips. The second filter assembly includes a hollow partition fixedly installed inside the cylinder body, and a plurality of vortex tubes are fixedly installed at the bottom of the hollow partition. A vortex electromagnetic plate is fixedly installed at the bottom of each vortex tube, and a liquid outlet head is fixedly installed at the bottom of each vortex electromagnetic plate.

[0013] Preferably, a first pressure sensor and a second pressure sensor are fixedly mounted on the cylinder, and the baffle and the hollow partition inside the cylinder divide the cylinder into a first chamber, a second chamber and a third chamber from top to bottom. The first pressure sensor is used to detect the pressure in the third chamber, and the second pressure sensor is used to detect the pressure in the first chamber. A pressure relief valve is installed between the second chamber and the third chamber, and pressure gauges are fixedly mounted on the liquid inlet pipe and the side of the cylinder. Two pressure gauges are installed on the cylinder for displaying the pressures in the second chamber and the third chamber.

[0014] Preferably, the backwashing mechanism includes a flushing ring, on which a plurality of flushing structures are fixed, on which a liquid inlet telescopic tube is fixedly installed, the liquid inlet telescopic tube passes through the sealing plate and extends out of the cover body, and a plurality of tube bodies are fixedly connected at the bottom of the liquid inlet telescopic tube, and each of the tube bodies is connected to the corresponding flushing structure.

[0015] Preferably, the flushing structure includes a liquid guide ring fixedly installed in the flushing ring, on which an annular tube is rotatably installed, on which a plurality of pulse nozzles with inclined designs are fixedly installed, the tube body is connected to the liquid guide ring, and a plurality of liquid inlet holes are opened on the annular tube.

[0016] Preferably, the collection mechanism comprises a collection cover, a lifting structure is installed between the collection cover and the flushing ring and the cover body, and two liquid discharge telescopic tubes are fixedly connected to the collection cover, and the two liquid discharge telescopic tubes both penetrate and extend out of the cylinder;

[0017] Telescopic rings are installed at both the upper and lower ends of the collecting cover, and the telescopic rings are composed of multiple groups of telescopic parts. Each group of telescopic parts includes a fixed plate, and the fixed plate is fixedly connected to the collecting cover. A movable plate is slidably installed on the fixed plate, and a push rod is rotatably installed on the movable plate. A pushing structure that cooperates with multiple push rods is installed on the collecting cover.

[0018] Preferably, the lifting structure includes a motor fixedly mounted on the cover body, a first screw rod is rotatably mounted on the baffle, a second screw rod is fixed to the driving end of the motor, the first screw rod and the second screw rod are linked by a crawler track, and a nut is threadedly rotatably mounted on the first screw rod and the second screw rod, and the two nuts are respectively fixedly connected to the corresponding collection cover and flushing ring.

[0019] Preferably, the pushing structure includes two gear rings rotatably mounted at the upper and lower ends of the collecting cover, and a plurality of push plates cooperating with corresponding push rods are fixedly mounted on the two gear rings. A first motor and a second motor are fixedly mounted on the collecting cover, and a gear is fixedly mounted on the driving end of the first motor and the second motor, and the two gears are respectively meshed with the corresponding gear rings.

[0020] Preferably, an arc-shaped rubber sheet is fixedly mounted on one side of the movable sheet away from the fixed sheet, and is against the outer surface of the filter cartridge to scrape off the chips remaining on the outer surface of the filter cartridge.

[0021] The present invention also provides a machine tool chip filtering and processing method, comprising the above-mentioned machine tool chip filtering and processing device, and further comprising the following steps:

[0022] S1. First, the cutting fluid is injected into the cylinder through the liquid inlet pipe. Under the action of the baffle, the cutting fluid will be guided to flow from bottom to top. Then the cutting fluid will flow to the filter cylinder and be filtered through the filter cylinder.

[0023] S2. After being filtered through the filter cartridge, the large-diameter chips in the cutting fluid will be blocked by the filter cartridge, and then the filtered cutting fluid will pass through the filter cartridge into the inside of the filter cartridge, and then enter the second filter assembly through the holes on the baffle;

[0024] S3, performing a second-stage filtration on the cutting fluid through a second filter assembly to further remove small-diameter impurities in the cutting fluid, and adsorbing and collecting the impurities;

[0025] S4. The cutting fluid processed by the second filter assembly will be discharged from the liquid outlet pipe.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. When filtering chips in the cutting fluid, the chip filtering device of this machine tool performs local backwashing and cleaning of the filter cylinder by setting a backwashing mechanism that can move up and down, and cooperates with a collection cover to collect the chips dropped by backwashing. Compared with brush cleaning, the effect is better, and there is no need to stop the filtering operation. Backwashing is performed during the filtering process to improve the filtering efficiency.

[0028] 2. When filtering chips in the cutting fluid, the chip filtering and processing device of this machine tool sets a second filtering component to filter the cutting fluid after being filtered by the filter cartridge again, and uses the adsorption capacity of the electromagnetic plate to adsorb and collect the chips. At the same time, the cyclone tube is used to rotate the cutting fluid to generate centrifugal force, thereby improving the adsorption and collection efficiency of the chips, thereby making the chip filtering more thorough.

[0029] 3. When the chip filtering and processing device of this machine tool is filtering chips in the cutting fluid, a telescopic ring with a freely changeable inner circle size is arranged to form a box body with a collecting cover. At the same time, when the collecting cover moves, the telescopic ring at the front shrinks, while the telescopic ring at the back keeps fitting with the filter cylinder, so as to prevent the front telescopic ring from moving and scraping off the chips on the filter cylinder, and to prevent the chips from entering the cylinder body, causing the chip concentration inside the cylinder to be too high and reduce the filtering efficiency.

[0030] To sum up, the present invention adopts a mobile local backwashing method to clean the filter cartridge without stopping the filtering operation, which has the advantage of improving the filtering efficiency and better cleaning effect. In addition, during the backwashing movement, the telescopic ring can be prevented from sticking to the filter cartridge, effectively preventing chips from entering the cartridge again and causing excessive chip concentration in the cartridge, thereby further improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0032] Figure 1 A schematic diagram of the structure of a machine tool chip filtering and processing device proposed by the present invention;

[0033] Figure 2 for Figure 1 A schematic detailed view of the plan structure along one of the angles;

[0034] Figure 3 for Figure 2 Detailed schematic diagram of the three-dimensional structure along the AA section;

[0035] Figure 4 for Figure 1Detailed schematic diagram of the structure after removing the cylinder;

[0036] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the second filter component;

[0037] Figure 6 for Figure 4 A schematic detailed diagram of the enlarged structure of the first filter assembly;

[0038] Figure 7 for Figure 6 A schematic detailed view of the plan structure along one of the angles;

[0039] Figure 8 for Figure 7 Detailed schematic diagram of the three-dimensional structure along the BB section;

[0040] Fig. 9 for Figure 8 Detailed schematic diagram of the structure after removing the filter cartridge and rotating it to a certain angle;

[0041] Fig.10 for Fig. 9 Detailed schematic diagram of the collection mechanism structure;

[0042] Fig.11 for Fig.10 A detailed diagram of the enlarged structure of the middle telescopic ring;

[0043] Fig.12 for Fig.11 Detailed schematic diagram of the structure of the telescopic part;

[0044] Fig.13 for Fig. 9 Detailed schematic diagram of the structure of the middle backwash mechanism;

[0045] Fig.14 for Fig.13 An enlarged schematic structural detail diagram of the middle flushing structure;

[0046] Fig.15 for Fig.14 Detailed diagram of the exploded structure after rotation at a certain angle.

[0047] In the figure: 1 cylinder, 2 liquid inlet pipe, 3 liquid outlet pipe, 4 first pressure sensor, 5 second pressure sensor, 6 cover, 7 pressure relief valve, 8 first filter assembly, 9 second filter assembly, 10 pressure gauge, 11 hollow partition, 12 swirl tube, 13 liquid outlet head, 14 vortex electromagnetic plate, 15 filter cylinder, 16 blocking plate, 17 liquid inlet telescopic tube, 18 motor, 19 first screw rod, 20 collection cover, 21 first motor, 22 second motor, 23 flushing ring, 24 liquid discharge telescopic tube, 25 crawler, 26 second screw rod, 27 gear ring, 28 push plate, 29 telescopic ring, 30 gear, 31 fixed plate, 32 moving plate, 33 push rod, 34 flushing structure, 35 liquid guide ring, 36 annular tube, 37 pulse nozzle, 38 baffle. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1: Reference Figure 1-Figure 5 , a machine tool chip filtering and processing device, comprising a cylinder 1 and a cover 6 fixedly mounted on the upper part of the cylinder 1, and also comprising a liquid inlet pipe 2 and a liquid outlet pipe 3 fixedly mounted on the side of the cylinder 1;

[0050] A first filter assembly 8 and a second filter assembly 9 are installed in the cylinder 1. The first filter assembly 8 is used for the first step of filtering to remove large impurities in the chips. The first filter assembly 8 includes a baffle 38 fixedly installed inside the cylinder 1, and a filter cartridge 15 is fixedly installed on the baffle 38.

[0051] The cutting fluid is injected into the cylinder body 1 through the liquid inlet pipe 2 . The baffle 38 guides the cutting fluid so that the cutting fluid flows from bottom to top. Then the cutting fluid flows to the filter cylinder 15 and is filtered through the filter cylinder 15 .

[0052] The second filter assembly 9 is used for the second step of filtering to remove smaller impurities in the chips. The second filter assembly 9 includes a hollow partition 11 fixedly installed inside the cylinder 1, and a plurality of vortex tubes 12 are fixedly installed at the bottom of the hollow partition 11. A vortex electromagnetic plate 14 is fixedly installed at the bottom of each vortex electromagnetic plate 14, and a liquid outlet head 13 is fixedly installed at the bottom of each vortex electromagnetic plate 14.

[0053] The cutting fluid filtered by the filter cartridge 15 will fall onto the hollow partition 11, and then enter the cyclone tube 12 through the hollow partition 11 (the cyclone tube 12 is a vertical conical pipe, and the diameter of the upper part is larger than the diameter of the bottom part. After the cutting fluid enters the cyclone tube 12, the diameter is reduced and the flow rate is increased. At the same time, a spiral groove is provided on the inner wall of the cyclone tube 12. After the cutting fluid enters the cyclone tube 12, it will rotate under the action of the spiral groove to generate centrifugal force. Since the mass of the chips is greater than the mass of water, the chips will flow along the wall of the cyclone tube 12 with the cutting fluid). Then the cutting fluid will pass through the cyclone tube 12 into the vortex electromagnetic plate 14, and the vortex electromagnetic plate 14 will absorb the chips. A part of the cutting fluid will be discharged from the vortex electromagnetic plate 14, and the other part will be discharged from the liquid outlet head 13 below the vortex electromagnetic plate 14, and then discharged from the cylinder 1 through the liquid outlet pipe 3.

[0054] The second filter assembly 9 is provided to filter the cutting fluid after being filtered by the filter cartridge 15 again, and the adsorption capacity of the vortex electromagnetic plate 14 is utilized to adsorb and collect the chips. At the same time, the cyclone tube 12 is used to rotate the cutting fluid to generate centrifugal force, thereby improving the adsorption and collection efficiency of the chips, thereby making the filtration of the chips more thorough.

[0055] A cleaning window for cleaning is provided on the bottom side of the cylinder 1, and the cleaning window is connected to a drain pipe for discharging the chips on the vortex electromagnetic plate 14. When discharging, it is necessary to switch the drainage, close the outlet pipe 3, and open the drain pipe. At this time, the cutting fluid carrying the chips will be discharged from the drain pipe. Before discharging, the vortex electromagnetic plate 14 needs to be powered off. After power off, the chips on the vortex electromagnetic plate 14 will enter the cylinder 1, and then be discharged from the drain pipe along with the cutting fluid (this process also does not require stopping the filtering operation).

[0056] A first pressure sensor 4 and a second pressure sensor 5 are fixedly installed on the cylinder 1. The baffle 38 and the hollow partition 11 in the cylinder 1 divide the cylinder 1 into a first chamber, a second chamber and a third chamber from top to bottom. The first pressure sensor 4 is used to detect the pressure in the third chamber, and the second pressure sensor 5 is used to detect the pressure in the first chamber. A pressure relief valve 7 is installed between the second chamber and the third chamber. Pressure gauges 10 are fixedly installed on the liquid inlet pipe 2 and the side of the cylinder 1. Two pressure gauges are installed on the cylinder 1 for displaying the pressures in the second chamber and the third chamber.

[0057] The first pressure sensor 4 detects the pressure in the third chamber and displays it through the pressure gauge 10. Once the pressure in the third chamber exceeds the predetermined pressure, it indicates that there is a problem with the drainage, and the drainage outlet pipe 3 and the drainage pipe need to be repaired.

[0058] After the second pressure sensor 5 detects the pressure in the first chamber, it will be displayed through the pressure gauge 10, which is used to detect the pressure outside the filter cartridge 15. Once the pressure there exceeds the standard, it means that the filtering efficiency of the filter cartridge 15 is reduced. At this time, the cleaning frequency of the filter cartridge 15 needs to be increased.

[0059] The increase in pressure in the second chamber indicates that there is a problem with the second filter assembly 9 and it needs to be repaired. At this time, the cyclone tube 12 or the vortex electromagnetic plate 14 is blocked.

[0060] The function of the pressure relief valve 7 is to divert and release the cutting fluid in the second chamber when the second filter assembly 9 is blocked to ensure normal filtration. The diverted cutting fluid needs to be introduced into the cylinder 1 for filtration again.

[0061] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 4 , Figure 6-Figure 15 A blocking plate 16 is fixedly installed on the top of the filter cartridge 15 , a hole matching with the filter cartridge 15 is opened on the baffle 38 , and a backwashing mechanism and a collecting mechanism matching with the filter cartridge 15 are installed on the baffle 38 .

[0062] The backwashing mechanism includes a flushing ring 23, on which a plurality of flushing structures 34 are fixed. A liquid inlet telescopic tube 17 is fixedly installed on the flushing ring 23. The liquid inlet telescopic tube 17 passes through the sealing plate 16 and extends out of the cover body 6 to the cylinder body 1. A plurality of tube bodies are fixedly connected to the bottom of the liquid inlet telescopic tube 17, and each tube body is connected to the corresponding flushing structure 34.

[0063] The liquid inlet telescopic pipe 17 is divided into three sections, the upper and lower ends are hard pipes, and the middle section is a telescopic pipe. When the flushing ring 23 moves up and down, it can drive the telescopic pipe to expand and contract, so that the flushing liquid can enter the flushing structure 34.

[0064] The externally clean cutting fluid is introduced into the flushing structure 34 from the liquid inlet telescopic tube 17 , and then the filter cartridge 15 is jet-impact cleaned from the inside out through the flushing structure 34 .

[0065] The flushing structure 34 includes a liquid guide ring 35 fixedly installed in the flushing ring 23, on which an annular tube 36 is rotatably installed, on which multiple pulse nozzles 37 with inclined designs are fixedly installed, the tube body is connected to the liquid guide ring 35, and the annular tube 36 is provided with multiple liquid inlet holes.

[0066] Clean cutting fluid will enter the liquid guide ring 35 through the tube body on the liquid inlet telescopic tube 17 , then enter the annular tube 36 through the liquid inlet hole, and finally be sprayed out through the pulse nozzle 37 .

[0067] The pulse nozzle 37 is used here for the following purposes: the pulse nozzle 37 can effectively break up the dirt, stains or dust by generating strong water pulses in a short time, and quickly clean the surface. Compared with continuous air flow or liquid flow cleaning, the instantaneous high-pressure airflow of the pulse nozzle 37 can more easily remove stubborn dirt and deposits;

[0068] In addition, the pulse nozzle 37 can also spray airflow in multiple directions and angles, which can cover the cleaning area more evenly and ensure that every part can be thoroughly cleaned, which makes the pulse nozzle 37 particularly suitable for cleaning complex structures or large surfaces.

[0069] The pulse nozzle 37 adopts an inclined design. When the pulse nozzle 37 sprays cutting fluid, the reaction force of the cutting fluid will drive the annular tube 36 to rotate on the liquid guide ring 35, thereby realizing rotational jet flushing with a larger flushing range. In addition, the rotational flushing can also drive the cutting fluid to rotate to generate centrifugal force, which is beneficial to the separation of chips and cutting fluid.

[0070] The collecting mechanism comprises a collecting cover 20, a lifting structure is installed between the collecting cover 20 and the flushing ring 23 and the cover body 6, and two liquid discharge telescopic pipes 24 are fixedly connected to the collecting cover 20, and the two liquid discharge telescopic pipes 24 both penetrate and extend out of the cylinder 1;

[0071] A pump is fixedly installed outside the cylinder 1, and two liquid discharge telescopic pipes 24 are connected to the pump, so that the cutting fluid carrying a large amount of chips in the collection cover 20 can be pumped out through the pump.

[0072] Since the collecting cover 20 can move up and down, a telescopic liquid discharge tube 24 is used here, and the length can be freely changed.

[0073] The lifting structure includes a motor 18 fixedly mounted on the cover body 6, a first screw rod 19 rotatably mounted on the baffle 38, a second screw rod 26 fixed on the driving end of the motor 18, the first screw rod 19 and the second screw rod 26 are linked by a track 25, and a nut is threadedly rotatably mounted on the first screw rod 19 and the second screw rod 26, and the two nuts are respectively fixedly connected to the corresponding collection cover 20 and the flushing ring 23.

[0074] The motor 18 is a waterproof motor. The driving end of the motor 18 rotates to drive the second screw 26 fixedly connected to it to rotate, and cooperates with the track 25 to drive the first screw 19 to rotate. Under the action of the nut, it will drive the flushing ring 23 and the collection cover 20 to move. The motor 18 adopts intermittent operation to perform intermittent local backwashing operations on the filter cartridge 15.

[0075] A backwashing mechanism that can move up and down is provided to perform local backwashing cleaning on the filter cartridge 15, and a collecting hood 20 is used to collect the chips dropped by backwashing. Compared with brush cleaning, the effect is better, and there is no need to stop the filtering operation. Backwashing is performed during the filtering process, thereby improving the filtering efficiency.

[0076] The purpose of intermittent backwashing is to extend the backwashing time so that the filter cartridge 15 can be cleaned more thoroughly.

[0077] Telescopic rings 29 are installed at both upper and lower ends of the collecting cover 20. The telescopic rings 29 are composed of multiple groups of telescopic parts. Each group of telescopic parts includes a fixed plate 31. The fixed plate 31 is fixedly connected to the collecting cover 20. A movable plate 32 is slidably installed on the fixed plate 31. A push rod 33 is rotatably installed on the movable plate 32. A pushing structure that cooperates with multiple push rods 33 is installed on the collecting cover 20.

[0078] Before the collecting cover 20 moves up, the telescopic ring 29 at the upper part is opened, while the telescopic ring 29 at the lower part is closed (before the collecting cover 20 moves down, the telescopic ring 29 at the lower part is opened, while the telescopic ring 29 at the upper part is closed), and the movable sheet 32 ​​retracts into the fixed sheet 31. At this time, the movable sheet 32 ​​is separated from the outer wall of the filter cartridge 15. Since there is no obstruction by the upper telescopic ring 29, the chips on the filter cartridge 15 will adhere to the filter cartridge 15 (if the upper telescopic ring 29 is not opened, the upper movable sheet 32 ​​will stick to the outer wall of the filter cartridge 15, and will scrape off the chips on the filter cartridge 15. The scraped chips will fall into the first chamber of the cylinder body 1, causing the chip concentration in the first chamber to increase, affecting the filtration efficiency), until the telescopic ring 29 at the lower part moves to the original position of the upper telescopic ring 29, and then the upper telescopic ring 29 is closed, so as to perform local backwashing and cleaning of the filter cartridge 15 between the upper and lower telescopic rings 29.

[0079] An arc-shaped rubber sheet is fixedly installed on the side of the movable sheet 32 ​​away from the fixed sheet 31, which is against the outer surface of the filter barrel 15 and is used to scrape off the chips remaining on the outer surface of the filter barrel 15. The rubber sheet will be against the outer wall of the filter barrel 15. When the rubber sheet moves, it will scrape off the chips adhered to the filter barrel 15 (backwashing will flush out the chips in the holes on the filter barrel 15. Although the spacing between the holes is small, there is a probability that the chips between the holes will adhere to the filter barrel 15. At this time, the chips are scraped off by the rubber sheet), making the cleaning of the filter barrel 15 more thorough.

[0080] The driving structure includes two gear rings 27 rotatably mounted at the upper and lower ends of the collecting cover 20, and a plurality of push plates 28 cooperating with corresponding push rods 33 are fixedly mounted on the two gear rings 27. A first motor 21 and a second motor 22 are fixedly mounted on the collecting cover 20, and a gear 30 is fixedly mounted on the driving end of the first motor 21 and the second motor 22, and the two gears 30 are respectively meshed with the corresponding gear rings 27.

[0081] Opening and closing of the telescopic ring 29: The first motor 21 and the second motor 22 are used to control the opening and closing of the upper telescopic ring 29 and the lower telescopic ring 29 respectively. The driving methods of the two telescopic rings 29 are the same, so the upper telescopic ring 29 is taken as an example here (the first motor 21 and the second motor 22 are both waterproof motors);

[0082] The rotation of the driving end of the first motor 21 will drive the gear 30 to rotate, thereby driving the gear ring 27 to rotate. The rotation of the gear ring 27 drives the push piece 28 fixedly connected thereto to move (the push piece 28 adopts an inclined design and is U-shaped, and the push rod 33 is stuck in the push piece 28). The push piece 28 makes a circular motion around the center of the gear ring 27. Since the push piece 28 adopts an inclined design, according to the decomposition of force, a component force will be generated on the straight line between the push rod 33 and the center point of the gear ring 27. This component force will push the push rod 33 to move, and the push rod 33 will drive the moving piece 32 to move, so that the moving piece 32 retracts into the fixed piece 31, thereby realizing the opening of the telescopic ring 29. The first motor 21 is reversed to close it.

[0083] The purpose of the rotational connection between the push rod 33 and the moving plate 32 is to reduce friction so that the push plate 28 can push the push rod 33 more easily.

[0084] The specific operation steps of this device are as follows:

[0085] Filtration: First, the cutting fluid is injected into the cylinder 1 through the liquid inlet pipe 2. Under the action of the baffle 38, the cutting fluid is guided so that the cutting fluid flows from bottom to top. Then, the cutting fluid flows to the filter cylinder 15 and is filtered through the filter cylinder 15.

[0086] After being filtered by the filter cartridge 15, the large-diameter chips in the cutting fluid will be blocked by the filter cartridge 15, and the filtered cutting fluid will pass through the filter cartridge 15 into the inside of the filter cartridge 15, and then enter the second filter assembly 9 through the holes on the baffle 38;

[0087] The second filter assembly 9 is used to perform a second-stage filtration on the cutting fluid to further remove small-diameter impurities in the cutting fluid, and the impurities can be adsorbed and collected.

[0088] The cutting fluid processed by the second filter assembly 9 will be discharged from the liquid outlet pipe 3 .

[0089] Backwashing: While the first filter assembly 8 is filtering, the clean cutting fluid from the outside is introduced into the liquid guide ring 35 from the liquid inlet telescopic tube 17, then enters the annular tube 36 through the liquid inlet hole, and finally sprayed out through the pulse nozzle 37 to backwash the filter cartridge 15;

[0090] When the pulse nozzle 37 sprays cutting fluid, the reaction force of the cutting fluid will drive the annular tube 36 to rotate on the liquid guide ring 35, thereby realizing rotational jet flushing with a larger flushing range. In addition, the rotational flushing can also drive the cutting fluid to rotate and generate centrifugal force, which is beneficial to the separation of chips and cutting fluid.

[0091] Then the chips dropped by backwashing are collected by the collecting hood 20 and discharged by the pump and the discharge telescopic pipe 24;

[0092] After the cleaning of the part of the filter cartridge 15 is completed, the motor 18 is started, and the driving end of the motor 18 rotates to drive the second screw 26 fixedly connected thereto to rotate, and cooperates with the crawler 25 to drive the first screw 19 to rotate. Under the action of the nut, the flushing ring 23 and the collection cover 20 are driven to move. The motor 18 adopts intermittent operation to perform intermittent local backwashing operation on the filter cartridge 15 to change the backwashing position, which is used for local backwashing, and the filtering operation is always carried out;

[0093] Before the collecting cover 20 moves upward, the telescopic ring 29 at the upper part is opened, while the telescopic ring 29 at the lower part is closed, and the moving sheet 32 ​​is retracted into the fixed sheet 31. At this time, the moving sheet 32 ​​is separated from the outer wall of the filter cartridge 15. Since there is no obstruction of the upper telescopic ring 29, the chips on the filter cartridge 15 will adhere to the filter cartridge 15 until the telescopic ring 29 at the lower part moves to the original position of the upper telescopic ring 29, and then the upper telescopic ring 29 is closed, so as to perform partial backwashing and cleaning of the filter cartridge 15 between the upper and lower telescopic rings 29;

[0094] The rotation of the driving end of the first motor 21 will drive the gear 30 to rotate, thereby driving the gear ring 27 to rotate. The rotation of the gear ring 27 drives the push piece 28 fixedly connected to it to move, and the push piece 28 makes a circular motion around the center of the gear ring 27. Since the push piece 28 adopts an inclined design, according to the decomposition of force, a component force will be generated on the straight line between the push rod 33 and the center point of the gear ring 27. This component force will push the push rod 33 to move, and the push rod 33 will drive the movable piece 32 to move, so that the movable piece 32 retracts into the fixed piece 31, thereby realizing the opening of the upper telescopic ring 29.

[0095] The rubber sheet located at the bottom will abut against the outer wall of the filter cartridge 15 , and when the rubber sheet moves, the cuttings adhering to the filter cartridge 15 will be scraped off, so that the filter cartridge 15 can be cleaned more thoroughly.

[0096] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A machine tool chip filtering and processing device, comprising a cylinder (1) and a cover (6) fixedly mounted on the upper part of the cylinder (1), characterized in that: It also includes a liquid inlet pipe (2) and a liquid outlet pipe (3) fixedly mounted on the side of the cylinder (1); A first filter assembly (8) and a second filter assembly (9) are installed in the cylinder (1). The first filter assembly (8) is used to perform a first step of filtering to remove large impurities in the chips. The first filter assembly (8) comprises a baffle (38) fixedly installed inside the cylinder (1). A filter cartridge (15) is fixedly mounted on the baffle plate (38), a blocking plate (16) is fixedly mounted on the top of the filter cartridge (15), a hole matching the filter cartridge (15) is provided on the baffle plate (38), and a backwashing mechanism and a collection mechanism matching the filter cartridge (15) are mounted on the baffle plate (38); The backwashing mechanism comprises a flushing ring (23), a plurality of flushing structures (34) being fixed on the flushing ring (23), a liquid inlet telescopic tube (17) being fixedly mounted on the flushing ring (23), the liquid inlet telescopic tube (17) penetrating the blocking plate (16) and extending out of the cylinder (1) from the cover body (6), a plurality of tube bodies being fixedly connected at the bottom of the liquid inlet telescopic tube (17), each of the tube bodies being connected to a corresponding flushing structure (34); The flushing structure (34) comprises a liquid guide ring (35) fixedly mounted inside the flushing ring (23); an annular tube (36) is rotatably mounted on the liquid guide ring (35); a plurality of pulse nozzles (37) of inclined design are fixedly mounted on the annular tube (36); the tube body is in communication with the liquid guide ring (35); and a plurality of liquid inlet holes are formed on the annular tube (36); The collecting mechanism comprises a collecting hood (20); a lifting structure is installed between the collecting hood (20) and the flushing ring (23) and the cover body (6); two liquid discharge telescopic tubes (24) are fixedly connected to the collecting hood (20); the two liquid discharge telescopic tubes (24) both penetrate through and extend out of the cylinder (1); The upper and lower ends of the collection cover (20) are both provided with telescopic rings (29), the telescopic rings (29) are composed of a plurality of groups of telescopic components, each group of telescopic components comprises a fixed sheet (31), the fixed sheet (31) is fixedly connected to the collection cover (20), a moving sheet (32) is slidably mounted on the fixed sheet (31), a push rod (33) is rotatably mounted on the moving sheet (32), and a pushing structure that cooperates with the plurality of push rods (33) is installed on the collection cover (20); The lifting structure comprises a motor (18) fixedly mounted on the cover body (6); a first screw rod (19) is rotatably mounted on the baffle plate (38); a second screw rod (26) is fixed to the driving end of the motor (18); the first screw rod (19) and the second screw rod (26) are linked via a crawler belt (25); a nut is rotatably mounted on both the first screw rod (19) and the second screw rod (26); the two nuts are respectively fixedly connected to the corresponding collection cover (20) and flushing ring (23); The pushing structure comprises two toothed rings (27) rotatably mounted at the upper and lower ends of the collecting cover (20), a plurality of push plates (28) matching with corresponding push rods (33) being fixedly mounted on the two toothed rings (27), a first motor (21) and a second motor (22) being fixedly mounted on the collecting cover (20), a gear (30) being fixedly mounted on the driving ends of the first motor (21) and the second motor (22), and the two gears (30) being respectively meshed with the corresponding toothed rings (27).

2. The machine tool chip filtering and processing device according to claim 1, characterized in that: The second filter assembly (9) is used for the second step of filtering to remove smaller impurities in the chips. The second filter assembly (9) comprises a hollow partition (11) fixedly mounted inside the cylinder (1), a plurality of vortex tubes (12) fixedly mounted at the bottom of the hollow partition (11), a vortex electromagnetic plate (14) fixedly mounted at the bottom of each vortex electromagnetic plate (14), and a liquid outlet head (13) fixedly mounted at the bottom of each vortex electromagnetic plate (14).

3. The machine tool chip filtering and processing device according to claim 2, characterized in that: A first pressure sensor (4) and a second pressure sensor (5) are fixedly mounted on the cylinder (1); a baffle (38) and a hollow partition (11) in the cylinder (1) divide the cylinder (1) from top to bottom into a first chamber, a second chamber and a third chamber; the first pressure sensor (4) is used to detect the pressure in the third chamber; the second pressure sensor (5) is used to detect the pressure in the first chamber; a pressure relief valve (7) is installed between the second chamber and the third chamber; pressure gauges (10) are fixedly mounted on the liquid inlet pipe (2) and the side of the cylinder (1); two pressure gauges are installed on the cylinder (1) for displaying the pressure in the second chamber and the third chamber.

4. The machine tool chip filtering and processing device according to claim 1, characterized in that: An arc-shaped rubber sheet is fixedly mounted on one side of the movable sheet (32) away from the fixed sheet (31), and is against the outer surface of the filter cartridge (15) to scrape off the chips remaining on the outer surface of the filter cartridge (15).

5. A machine tool chip filtering method, used in a machine tool chip filtering device as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1. First, the cutting fluid is injected into the cylinder (1) through the liquid inlet pipe (2). The cutting fluid is guided by the baffle (38) so that the cutting fluid flows from bottom to top. Then, the cutting fluid flows to the filter cylinder (15) and is filtered by the filter cylinder (15). S2, after being filtered by the filter cartridge (15), large-diameter chips in the cutting fluid will be blocked by the filter cartridge (15), and the filtered cutting fluid will pass through the filter cartridge (15) into the interior of the filter cartridge (15), and then enter the second filter assembly (9) through the hole on the baffle (38); S3, performing a second stage of filtration on the cutting fluid through a second filter assembly (9), further removing small diameter impurities in the cutting fluid, and adsorbing and collecting the impurities; S4. The cutting fluid processed by the second filter assembly (9) is discharged from the liquid outlet pipe (3).

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