CN113770802B - Supporting cooling system of five-axis linkage machining center - Google Patents
Supporting cooling system of five-axis linkage machining center Download PDFInfo
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- CN113770802B CN113770802B CN202111280252.0A CN202111280252A CN113770802B CN 113770802 B CN113770802 B CN 113770802B CN 202111280252 A CN202111280252 A CN 202111280252A CN 113770802 B CN113770802 B CN 113770802B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1069—Filtration systems specially adapted for cutting liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention belongs to the technical field of five-axis linkage processing, and discloses a cooling system matched with a five-axis linkage processing center, which comprises a cooling box arranged on the outer side wall of a main shaft, wherein the top of the cooling box is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe penetrates through the top of the cooling box and extends into the cooling box, the water outlet pipe is communicated with a nozzle through a pipeline, the bottom of the cooling box is communicated with a blow-down pipe through a blow-down valve, the inner wall of the cooling box is slidably connected with two layers of filter screens, and the filter screens comprise an outer frame; the invention realizes the cleaning of the cooling box without stopping under the condition that the filtering of the ferromagnetic impurities in the cooling liquid by the filter screen is not influenced by the mutual coordination among the cylindrical elastic layer, the interlayer, the air supply device, the magnetic fluid conveying device and the like.
Description
Technical Field
The invention belongs to the technical field of five-axis linkage processing, and particularly relates to a cooling system matched with a five-axis linkage processing center.
Background
The five-axis linkage numerical control machine tool plays an increasingly important role in die machining, and the five-axis linkage numerical control machine tool is used, so that the workpiece machining is easy, the clamping mechanism of a machining tool is reduced, multiple clamping is avoided, and the die machining precision is improved. The five-axis linkage numerical control machine tool can increase the effective cutting edge length of the cutter in the machining process, reduce the cutting force, prolong the service life of the cutter and reduce the cost.
Chinese patent publication No. CN111390641B discloses a five-axis linkage numerical control machining center, which comprises a cooling device arranged on a main shaft, and a recovery and collection device arranged in a base; the cooling device comprises a first containing cavity, a second containing cavity and a nozzle, wherein the second containing cavity is communicated with the first containing cavity up and down, and the nozzle is arranged at the bottom of the second containing cavity; the recovery collecting device comprises a recovery cavity, the recovery cavity is communicated with a collecting channel arranged below a workbench of the numerical control machining center, a plurality of first atomizing nozzles are arranged in the recovery cavity, a magnetic suction device, an air draft device and a vent are sequentially arranged in the recovery cavity along a recovery procedure, and the cooling device is arranged to effectively cool a machining position and simultaneously cool the machined position continuously; but because the cooling liquid adopts above-mentioned device cooling to lead to easily that the reposition of redundant personnel passageway between first appearance chamber and the second holds the chamber to block up in the course of working, influences product processing, and need regularly shut down to first appearance intracavity portion clearance, leads to machining efficiency low.
Disclosure of Invention
The invention aims to solve the problems, and provides a cooling system matched with a five-axis linkage machining center, which has the advantage of cleaning impurities in cooling liquid under the condition of no shutdown.
In order to achieve the above purpose, the present invention provides the following technical solutions: the cooling system matched with the five-axis linkage machining center comprises a cooling box arranged on the outer side wall of a main shaft, wherein a water inlet pipe and a water outlet pipe are arranged at the top of the cooling box, the water inlet pipe penetrates through the top of the cooling box and extends into the cooling box, the water outlet pipe is communicated with a nozzle through a pipeline, a drain hole is formed in the bottom of the cooling box, a drain valve is arranged in the drain hole, two layers of filter screens are slidably connected to the inner wall of the cooling box, and each filter screen comprises an outer frame; the device comprises an outer frame, wherein a plurality of filtering strips distributed in a linear array are rotationally connected in the outer frame through torsion springs, each filtering strip comprises a cylindrical elastic layer, an interlayer is arranged in each cylindrical elastic layer, each cylindrical elastic layer is divided into an upper cavity and a lower cavity by each interlayer, one end top of each upper cavity is connected with a gas supply device through a first guide pipe, one end of each upper cavity is also connected with a replenishing liquid conveying device through a second guide pipe, the other end top of each upper cavity is connected with a replenishing liquid recovery device through a first liquid discharge pipe and a first electromagnetic valve, an air inlet valve is arranged in each first guide pipe, a first liquid inlet valve is arranged in each second guide pipe, one end bottom of each lower cavity is connected with a magnetic fluid conveying device through a third guide pipe, one end bottom of each lower cavity is also connected with the replenishing liquid conveying device through a fourth guide pipe, and the other end bottom of each lower cavity is connected with the magnetic fluid recovery device through a second liquid discharge pipe and a second electromagnetic valve; a second liquid inlet valve is arranged in the third conduit; a third liquid inlet valve is arranged in the fourth conduit; the outer frame is provided with a distance sensor which is used for measuring the distance from the filter screen to the bottom of the cooling box, the average density of the magnetic fluid in the magnetic fluid conveying device is greater than that of the cooling liquid, and the density of the supplementing liquid in the supplementing liquid conveying device is the same as that of the magnetic fluid;
when the distance value detected by the distance sensor on the filter screen at the bottom layer is smaller than the distance between the bottom end of the water inlet pipe and the bottom end of the cooling box, the second liquid inlet valve on the filter screen at the bottom layer is controlled to be opened, so that the magnetic fluid conveying device gradually fills magnetic fluid with a second preset amount into the lower cavity of the filter screen at the bottom layer, the first electromagnetic valve is opened, the supplementary liquid recovery device discharges gas in the upper cavity of the filter screen at the bottom layer through the supplementary liquid recovery device, when the distance value detected by the distance sensor on the filter screen at the bottom layer is equal to 0, the first electromagnetic valve and the second liquid inlet valve on the filter screen at the bottom layer are closed, the drain valve is opened, impurities at the lower part of the filter screen at the bottom layer are discharged, the second electromagnetic valve on the filter screen at the bottom layer is controlled to be opened, and the third liquid inlet valve is controlled to be opened, so that the discharge amount of the magnetic fluid in the lower cavity is equal to the supplementary amount of the supplementary liquid in the unit time in the lower cavity, and the ferromagnetic impurities adsorbed on the filter screen are discharged from the drain valve.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the mutual matching among the cylindrical elastic layer, the interlayer, the air supply device, the magnetic fluid conveying device and the like, when the nozzle is opened, the cooling liquid in the cooling box flows upwards due to the opening of the nozzle, so that the bottom filter screen is driven to move upwards, the bottom filter screen moves upwards, the outer frame is enabled to clean the inner side wall of the cooling box, the inner side wall of the cooling box is cleaned, meanwhile, under the action of magnetic force, ferromagnetic impurities in the cooling liquid are adsorbed to the surface of the filter screen, the ferromagnetic impurities in the cooling liquid are filtered, the phenomenon that the nozzle is blocked by the ferromagnetic impurities in the cooling liquid is avoided, after the spraying of liquid is stopped, the bottom filter screen automatically sinks under the action of gravity, and the inner wall of the cooling box is cleaned again, so that the device can automatically clean the inner side wall of the cooling box when the cooling liquid is sprayed.
2. According to the invention, through the mutual matching among the cylindrical elastic layer, the interlayer, the air supply device, the magnetic fluid conveying device and the like, when the distance value detected by the distance sensor on the bottom filter screen is smaller than the distance between the bottom end of the water inlet pipe and the bottom end of the cooling tank, the second liquid inlet valve on the bottom filter screen is controlled to be opened, so that the magnetic fluid conveying device gradually fills the magnetic fluid of a second preset quantity into the bottom filter screen, and simultaneously the first electromagnetic valve is opened, the air in the cavity of the bottom filter screen is discharged through the supplementary liquid recovery device by the supplementary liquid recovery device, when the distance value detected by the distance sensor on the bottom filter screen is equal to 0', the first electromagnetic valve and the second liquid inlet valve on the bottom filter screen are closed, then the drain valve is opened, so that impurities at the lower part of the bottom filter screen are discharged, then the second electromagnetic valve on the bottom filter screen is controlled to be opened, and simultaneously the third liquid inlet valve is controlled to be opened, so that the discharge quantity of the magnetic fluid in unit time of the lower cavity is equal to the supplementary liquid in unit time, and finally ferromagnetic impurities adsorbed on the filter screen are discharged from the valve, so that the drain ferromagnetic impurities in the filter screen are not influenced under the condition of cooling down to cool the filter screen, and the filter screen is not stopped.
3. According to the invention, through the mutual matching among the cylindrical elastic layer, the interlayer, the air supply device, the magnetic fluid conveying device and the like, when ferromagnetic impurities between two layers of filter screens are cleaned, the air inlet valve on the bottom layer filter screen is controlled to be opened, when the distance detected by the distance sensor on the bottom layer filter screen is equal to a preset value, the air inlet valve is controlled to be closed, then the first liquid inlet valve on the bottom layer filter screen is opened, a third preset amount of supplementary liquid is filled into the bottom layer filter screen, and when the distance detected by the distance sensor is smaller than the preset value, the air inlet valve on the bottom layer filter screen is controlled to be opened, so that the bottom layer filter screen and the top layer filter screen are kept in contact and rotate, then the second electromagnetic valve on the top layer filter screen is controlled to be opened, and meanwhile, the discharge amount of magnetic fluid in a lower chamber is controlled to be equal to the supplementary liquid in a unit time, finally ferromagnetic impurities adsorbed on the top layer filter screen are transferred to the lower chamber of the bottom layer filter screen, and then the ferromagnetic impurities on the lower part of the bottom layer filter screen can be cleaned.
Drawings
The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic view of a three-dimensional structure of the present invention;
FIG. 2 is another angular three-dimensional schematic of the present invention;
FIG. 3 is a three-dimensional cross-sectional view of the present invention;
FIG. 4 is a schematic view of the internal structure of the cooling box of the present invention;
FIG. 5 is another angular schematic view of the internal structure of the cooling box according to the present invention;
FIG. 6 is a schematic diagram of a filter screen according to the present invention;
FIG. 7 is a schematic view of a filter rod according to the present invention;
fig. 8 is a cross-sectional view of a filter rod of the present invention.
In the figure: 1. a cooling box; 2. a water inlet pipe; 3. a drain pipe; 4. a blow-down valve; 5. a filter screen; 6. an outer frame; 7. a filter strip; 701. a cylindrical elastic layer; 702. an interlayer; 8. an upper chamber; 9. a lower chamber; 10. a nozzle; 11. an intake valve; 12. a first electromagnetic valve; 13. a second electromagnetic valve; 14. a first liquid inlet valve; 15. a second liquid inlet valve; 16. a third liquid inlet valve; 17. a rotating shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The cooling system matched with the five-axis linkage machining center comprises a cooling box 1 arranged on the outer side wall of a main shaft, wherein a water inlet pipe 2 and a water outlet pipe 3 are arranged at the top of the cooling box 1, the water inlet pipe 2 penetrates through the top of the cooling box 1 and extends into the cooling box 1, the water outlet pipe 3 is communicated with a nozzle 10 through a pipeline, a drain hole is formed in the bottom of the cooling box 1, a drain valve 4 is arranged in the drain hole, and the drain valve 4 is communicated with a drain pipe; the inner wall of the cooling box 1 is connected with two layers of filter screens 5 in a sliding manner, and the filter screens 5 comprise an outer frame 6; the inside of the outer frame 6 is rotationally connected with a plurality of filtering strips 7 distributed in a linear array through torsion springs, each filtering strip 7 comprises a cylindrical elastic layer 701, an interlayer 702 is arranged in each cylindrical elastic layer 701, each cylindrical elastic layer 701 is divided into an upper cavity 8 and a lower cavity 9 by the interlayer 702, the top of one end of each upper cavity 8 is connected with a gas supply device through a first guide pipe, one end of each upper cavity 8 is also connected with a replenishing liquid conveying device through a second guide pipe, the top of the other end of each upper cavity 8 is connected with a replenishing liquid recovery device through a first liquid discharge pipe and a first electromagnetic valve 12, an air inlet valve 11 is arranged in each first guide pipe, a first liquid inlet valve 14 is arranged in each second guide pipe, one end bottom of each lower cavity 9 is connected with a magnetic fluid conveying device through a third guide pipe, one end bottom of each lower cavity 9 is also connected with the replenishing liquid conveying device through a fourth guide pipe, and the other end bottom of each lower cavity 9 is connected with the magnetic fluid recovery device through a second liquid discharge pipe and a second electromagnetic valve 13; a second liquid inlet valve 15 is arranged in the third conduit; a third liquid inlet valve 16 is arranged in the fourth conduit; the outer frame 6 is provided with a distance sensor which is used for measuring the distance from the filter screen 5 to the bottom of the cooling box 1, the average density of the magnetic fluid in the magnetic fluid conveying device is greater than that of the cooling liquid, and the density of the supplementing liquid in the supplementing liquid conveying device is the same as that of the magnetic fluid.
The nozzle 10 is arranged at the bottom of the cooling box 1, the nozzle 10 is connected with the side wall of the cooling box 1 through an angle adjusting component, and the spray direction of the nozzle 10 is changed through the arrangement of the angle adjusting component, so that multi-angle spray is realized, and the adaptability of the cooling box is improved.
The angle adjusting component comprises a rotating motor, the rotating motor is fixed at the bottom of the cooling box 1, and the side wall of the central shaft of the rotating motor is fixedly connected with the side wall of the nozzle 10. The adjustment of the injection angle of the nozzle 10 is achieved by controlling the rotation of the rotary motor.
The magnetic fluid in the magnetic fluid conveying device is formed by mixing a magnetic sphere and base liquid, the magnetic fluid recycling device comprises a box body, and an electromagnetic filter plate is arranged in the box body and used for separating the magnetic sphere from the base liquid.
Be equipped with a plurality of strengthening ribs on the cylindrical elastic layer 701 lateral wall, through setting up the strengthening rib to can not be because of when filling gas or liquid when making cylindrical elastic layer 701 lateral wall tend to sharp, cause filter strip 7 wobbling phenomenon to take place.
The cooling box 1 is internally provided with guide posts which are uniformly and symmetrically arranged left and right, the guide posts are in sliding connection with the outer frame 6, holes for the guide posts to pass through are formed in the outer frame 6, and the guide posts are arranged to enable the guide posts to provide sliding guiding function for the sliding of the outer frame 6.
The equal fixedly connected with pivot 17 in filter strip 7 both ends, outer frame 6 opposite one side be equipped with pivot 17 complex hole, pivot 17 are equipped with the torsional spring outward, torsional spring one end and outer frame 6 fixed connection, the torsional spring other end and pivot 17 fixed connection, the torsional spring makes the last cavity 8 initial position of filter strip 7 be located the top, through setting up the torsional spring, makes filter strip 7 can rotate and can automatic recovery initial state.
When the cooling box is used, when the cooling box is started, as the top layer and the bottom layer filter screen 5 are not filled with substances, the top layer and the bottom layer filter screen 5 float to the top under the action of cooling liquid in the cooling box 1; firstly, controlling an air inlet valve 11 and a second liquid inlet valve 15 on a bottom filter screen 5 to be opened, enabling an air supply device and a magnetic fluid conveying device to respectively charge air with a first preset air quantity and magnetic fluid with a first preset liquid quantity into an upper cavity 8 and a lower cavity 9 of the bottom filter screen 5, wherein the first preset air quantity and the first preset liquid quantity are that when no cooling liquid flows in a cooling box 1, the air charged in the bottom filter screen 5 and the magnetic fluid charged with the first preset liquid quantity are matched together to enable a distance value detected by a distance sensor on the bottom filter screen 5 to be equal to a distance from the bottom end of the water inlet pipe 2 to the bottom wall of the cooling box 1, and then controlling the air inlet valve 11 and the second liquid inlet valve 15 on the bottom filter screen 5 to be closed; then, the air inlet valve 11 and the second liquid inlet valve 15 on the top filter screen 5 are controlled to be opened, so that the air supply device and the magnetic fluid conveying device respectively charge the air with fixed air quantity and the magnetic fluid with fixed liquid quantity into the upper cavity 8 and the lower cavity 9 of the bottom filter screen 5, when no cooling liquid flows in the cooling box 1, the air with fixed air quantity and the magnetic fluid with fixed liquid quantity charged in the top filter screen 5 are matched together, the distance value detected by the distance sensor on the top filter screen 5 is equal to the distance from the bottom end of the drain pipe 3 to the bottom wall of the cooling box 1, and then the air inlet valve 11 and the second liquid inlet valve 15 on the top filter screen 5 are controlled to be closed.
When the nozzle 10 is opened, as the nozzle 10 is opened, the cooling liquid in the cooling box 1 flows upwards, so that the bottom filter screen 5 is driven to move upwards, the bottom filter screen 5 moves upwards and the outer frame 6 is made to clean the inner side wall of the cooling box 1, so that the inner side wall of the cooling box 1 is cleaned, and meanwhile, under the action of magnetic force, ferromagnetic impurities in the cooling liquid are adsorbed to the surface of the filter screen 5, so that the ferromagnetic impurities in the cooling liquid are filtered, the phenomenon that the nozzle 10 is blocked by the ferromagnetic impurities in the cooling liquid is avoided, and after liquid spraying is stopped, the bottom filter screen 5 automatically sinks under the action of gravity, and the inner wall of the cooling box 1 is cleaned again; so that the device can automatically clean the inner side wall of the cooling box 1 when spraying cooling liquid.
When the distance value detected by the distance sensor on the bottom filter screen 5 is smaller than the distance between the bottom end of the water inlet pipe 2 and the bottom end of the cooling box 1, the magnetic fluid conveying device gradually fills a second preset amount of magnetic fluid into the lower chamber 9 of the bottom filter screen 5 by controlling the second liquid inlet valve 15 on the bottom filter screen 5, and simultaneously opens the first electromagnetic valve 12, so that the supplementing liquid recycling device discharges the gas in the upper chamber 8 of the bottom filter screen 5 through the supplementing liquid recycling device, and the second preset amount of magnetic fluid is used for expanding the adjacent filter strips 7 to be in contact and generating a certain extrusion force, and the bottom filter screen 5 is sunk to the bottom of the cooling box 1; the adjacent filter strips 7 expand to generate extrusion force, so that the lower part and the upper part of the filter screen 5 are separated, the influence on the flow rate of cooling liquid in the cooling box 1 when the blow-down valve 4 is opened is avoided, and the phenomenon that the nozzle 10 is cut off due to the opening of the blow-down valve 4 is avoided; in the second aspect, the magnetic fluid amount is increased, the filter strips 7 expand, the magnetic field is enhanced, the adsorptivity of the ferromagnetic impurities is enhanced, in the third aspect, the bottom filter screen 5 continuously sinks to the bottom end of the cooling box 1 under the action of self gravity due to the increase of the magnetic fluid amount, and the side wall of the cooling box 1 below the water inlet pipe 2 is cleaned; when the distance value detected by the distance sensor on the bottom filter screen 5 is equal to 0, then the first electromagnetic valve 12 and the second liquid inlet valve 15 on the bottom filter screen 5 are closed, then the blow-off valve 4 is opened, impurities at the lower part of the bottom filter screen 5 are discharged, then the second electromagnetic valve 13 on the bottom filter screen 5 is controlled to be opened, the magnetic fluid recovery device discharges the internal liquid of the magnetic fluid in the lower cavity 9 of the bottom filter screen 5, meanwhile, the third liquid inlet valve 16 is controlled to be opened, the supplementing liquid conveying device charges supplementing liquid into the lower cavity 9, the discharge amount of the magnetic fluid in the lower cavity 9 in unit time is kept equal to the supplementing liquid supplementing amount of the supplementing liquid in the lower cavity 9 in unit time, and as the magnetic fluid in the lower cavity 9 is reduced, the magnetic property disappears, finally, the ferromagnetic impurities adsorbed on the filter screen 5 are discharged from the blow-off valve 4, and meanwhile, as the average density of the supplementing liquid and the magnetic fluid which are charged inwards is the same, the average density of the magnetic fluid is ensured to be contacted between the filter strips 7 and a certain extrusion force is generated, and meanwhile, the internal discharge is realized, so that under the condition that the filtering of the ferromagnetic impurities in the cooling liquid is not affected by the magnetic fluid 5, the cooling liquid is not influenced, the filtering case, the supplementing liquid is stopped, and the magnetic fluid is completely cooled, and the third electromagnetic valve 13 is completely cleaned after the cooling filter screen is closed.
After the impurities at the bottom of the cooling box 1 are cleaned, closing the blow-off valve 4, then controlling the second electromagnetic valve 13 on the bottom filter screen 5 to be opened, so that the magnetic fluid recovery device discharges the supplementary fluid in the lower chamber 9 through the magnetic fluid recovery device, and then closing the second electromagnetic valve 13; because no filling material exists in the bottom filter screen 5, the bottom filter screen 5 floats upwards under the action of cooling liquid in the cooling box 1, and then the air inlet valve 11 and the second liquid inlet valve 15 on the bottom filter screen 5 are controlled to be opened, so that the air supply device and the magnetic fluid conveying device respectively recharge the air with the first preset air quantity and the magnetic fluid with the first preset air quantity into the upper chamber 8 and the lower chamber 9 of the bottom filter screen 5.
In the process of discharging the impurities in the cooling box 1, as the magnetic fluid in the lower cavity of the bottom filter screen 5 is discharged, magnetism disappears, so that the ferromagnetic impurities at the upper part of the bottom filter screen 5 flow upwards, and finally the ferromagnetic impurities are adsorbed on the lower surface of the filter screen 5 at the top, in the process of long-time use, as the ferromagnetic impurities adsorbed on the filter screen 5 at the top increase along with the time and the use, the circulation of cooling liquid is influenced, therefore, when the ferromagnetic impurities between two layers of filter screens 5 need to be cleaned regularly, the air inlet valve 11 on the bottom filter screen 5 is controlled to be opened, the air supply device charges air into the upper cavity 8 of the bottom filter screen 5, when the distance detected by the distance sensor on the bottom filter screen 5 is equal to a preset value, the air inlet valve 11 is controlled to be closed, and the air charging into the upper cavity 8 of the bottom filter screen 5 is stopped, the preset value is a distance value detected by a distance sensor on the bottom filter screen 5 in a state that the bottom filter screen 5 is in contact with the top filter screen 5, then a first liquid inlet valve 14 on the bottom filter screen 5 is opened, so that a third preset amount of replenishing liquid is filled into the bottom filter screen 5 by the replenishing liquid conveying device, the third preset amount is the liquid amount capable of enabling the filter strip 7 to overturn up and down, the third preset amount is larger than the first preset amount, meanwhile, when the distance value detected by the distance sensor is smaller than the preset value, an air inlet valve 11 on the bottom filter screen 5 is controlled to be opened, so that air is filled into an upper cavity 8 of the bottom filter screen 5 by the air supply device, when the distance value detected by the distance sensor is equal to the preset value, the air inlet valve 11 on the bottom filter screen 5 is controlled to be closed, so that the air supply device stops to charge air into the upper cavity 8 of the bottom filter screen 5, because the weight of the liquid in the upper chamber 8 is larger than that of the liquid in the lower chamber 9, the filter strip 7 on the bottom filter screen 5 is rotated under the action of gravity, so that the upper chamber 8 rotates to the bottom of the filter screen 5, the lower chamber 9 rotates to the top of the filter screen 5, so that the upper chamber 8 of the bottom filter screen 5 contacts with the bottom of the top filter screen 5, then the second electromagnetic valve 13 on the top filter screen 5 is controlled to be opened, the magnetic fluid recovery device is enabled to discharge the magnetic fluid in the lower chamber 9 of the top filter screen 5, the third liquid inlet valve 16 on the top filter screen 5 is controlled to be opened, the replenishment liquid conveying device is enabled to charge the replenishment liquid into the lower chamber 9, the discharge amount of the magnetic fluid in the lower chamber 9 in unit time is kept equal to the replenishment amount of the replenishment liquid in the lower chamber 9 in unit time, the magnetic fluid in the lower chamber 9 of the top filter screen 5 is reduced, the magnetism disappears, the ferromagnetic impurity adsorbed on the top layer filter screen 5 is transferred to the lower chamber 9 of the bottom layer filter screen 5, then the first electromagnetic valve 12 on the bottom layer filter screen 5 is controlled to be opened, the supplementary liquid recovery device discharges the gas and the supplementary liquid in the upper chamber 8 of the bottom layer filter screen 5, the supplementary liquid in the upper chamber 8 of the filter screen 5 is reduced, the weight is reduced, the filter strip 7 of the filter screen 5 is turned over to an initial state under the action of the torsion spring, meanwhile, the gas is reduced, the bottom layer filter screen 5 is lowered, when the distance value detected by the bottom layer distance sensor is equal to the distance from the bottom end of the water inlet pipe 2 to the bottom of the cooling box 1, the magnetic fluid conveying device supplements the magnetic fluid in the lower chamber 9 of the top layer filter screen 5 by controlling the second liquid inlet valve 15 and the second electromagnetic valve 13 on the top layer filter screen 5 to be opened, simultaneously, the magnetic fluid recovery device discharges the supplementary fluid in the lower cavity 9, then when the distance value detected by the distance sensor on the bottom filter screen 5 is smaller than the distance between the bottom end of the water inlet pipe 2 and the bottom end of the cooling box 1, the magnetic fluid conveying device gradually fills a second preset amount of magnetic fluid into the bottom filter screen 5 by controlling the second liquid inlet valve 15 on the bottom filter screen 5 to be opened, and simultaneously, the first electromagnetic valve 12 is opened, so that the supplementary fluid recovery device discharges the gas in the upper cavity 8 of the bottom filter screen 5 through the supplementary fluid recovery device, and the second preset amount of magnetic fluid is used for expanding the adjacent filter strips 7 to be contacted and generating a certain extrusion force, and the bottom filter screen 5 is sunk to the bottom of the cooling box 1; the adjacent filter strips 7 expand to generate extrusion force, so that the lower part and the upper part of the filter screen 5 are separated, the influence on the flow rate of cooling liquid in the cooling box 1 when the blow-down valve 4 is opened is avoided, and the phenomenon that the nozzle 10 is cut off due to the opening of the blow-down valve 4 is avoided; in the second aspect, the magnetic fluid amount is increased, the filter strips 7 expand, the magnetic field is enhanced, the adsorptivity of the ferromagnetic impurities is enhanced, in the third aspect, the bottom filter screen 5 continuously sinks to the bottom end of the cooling box 1 under the action of self gravity due to the increase of the magnetic fluid amount, and the side wall of the cooling box 1 below the water inlet pipe 2 is cleaned; when the distance value detected by the distance sensor on the bottom filter screen 5 is equal to 0, then the first electromagnetic valve 12 and the second liquid inlet valve 15 on the bottom filter screen 5 are closed, then the blow-off valve 4 is opened, impurities at the lower part of the bottom filter screen 5 are discharged, then the second electromagnetic valve 13 on the bottom filter screen 5 is controlled to be opened, the magnetic fluid recovery device discharges the magnetic fluid inside the lower cavity 9 of the bottom filter screen 5, meanwhile, the third liquid inlet valve 16 is controlled to be opened, the supplementing liquid is filled into the lower cavity 9 by the supplementing liquid conveying device, the discharging amount of the magnetic fluid in the lower cavity 9 in unit time is kept equal to the supplementing amount of the supplementing liquid in the lower cavity 9 in unit time, and as the magnetic fluid in the lower cavity 9 is reduced, the magnetic property disappears, finally, ferromagnetic impurities adsorbed on the filter screen 5 are discharged from the blow-off valve 4, and meanwhile, as the average density of the supplementing liquid and the magnetic fluid which are filled inwards is the same, the contact between the filter strips 7 is ensured, a certain extrusion force is generated, and meanwhile, the inside is discharged, so that the cleaning of the cooling box 1 is realized under the condition that the magnetic fluid is not stopped, the effect is not influenced, the filtering effect of the device is finished, and the third electromagnetic valve 13 is closed after the filtering effect of the bottom filter screen 5 is finished.
After the impurity cleaning between the two layers of filter screens 5 is finished, closing the blow-off valve 4, then controlling the second electromagnetic valve 13 on the bottom layer of filter screen 5 to be opened, enabling the magnetic fluid recovery device to discharge the supplementary fluid in the lower chamber 9 through the magnetic fluid recovery device, and then closing the second electromagnetic valve 13; because no filling material exists in the bottom filter screen 5, the bottom filter screen 5 floats upwards under the action of cooling liquid in the cooling box 1, and then the air inlet valve 11 and the second liquid inlet valve 15 on the bottom filter screen 5 are controlled to be opened, so that the air supply device and the magnetic fluid conveying device respectively recharge the air with the first preset air quantity and the magnetic fluid with the first preset air quantity into the upper chamber 8 and the lower chamber 9 of the bottom filter screen 5.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a supporting cooling system of five-axis linkage machining center, includes cooling box (1) that sets up on the main shaft lateral wall, its characterized in that: the cooling box is characterized in that a water inlet pipe (2) and a water outlet pipe (3) are arranged at the top of the cooling box (1), the water inlet pipe (2) penetrates through the top of the cooling box (1) and extends into the cooling box (1), the water outlet pipe (3) is communicated with a nozzle (10) through a pipeline, a drain hole is formed in the bottom of the cooling box (1), a drain valve (4) is arranged in the drain hole, two layers of filter screens (5) are slidably connected to the inner wall of the cooling box (1), and each filter screen (5) comprises an outer frame (6); the device is characterized in that a plurality of filtering strips (7) distributed in a linear array are rotationally connected in the outer frame (6) through torsion springs, each filtering strip (7) comprises a cylindrical elastic layer (701), an interlayer (702) is arranged in each cylindrical elastic layer (701), each cylindrical elastic layer (701) is divided into an upper cavity (8) and a lower cavity (9) by each interlayer (702), one end top of each upper cavity (8) is connected with a gas supply device through a first guide pipe, one end of each upper cavity (8) is also connected with a replenishing liquid conveying device through a second guide pipe, the other end top of each upper cavity (8) is connected with a replenishing liquid recovery device through a first liquid drain pipe and a first electromagnetic valve (12), an air inlet valve (11) is arranged in each first guide pipe, a first liquid inlet valve (14) is arranged in each second guide pipe, one end bottom of each lower cavity (9) is connected with the corresponding magnetic fluid conveying device through a third guide pipe, one end bottom of each lower cavity (9) is also connected with the corresponding replenishing liquid conveying device through a fourth guide pipe, and the other end bottom of each lower cavity (9) is connected with the corresponding magnetic fluid recovery device through a second drain pipe and a second electromagnetic valve (13); a second liquid inlet valve (15) is arranged in the third conduit; a third liquid inlet valve (16) is arranged in the fourth conduit; the outer frame (6) is provided with a distance sensor which is used for measuring the distance from the filter screen (5) to the bottom of the cooling box (1), the average density of magnetic fluid in the magnetic fluid conveying device is greater than that of cooling fluid, and the density of replenishing fluid in the replenishing fluid conveying device is the same as that of the magnetic fluid;
when the distance value detected by a distance sensor on the filter screen (5) at the bottom layer is smaller than the distance between the bottom end of the water inlet pipe (2) and the bottom end of the cooling box (1), the second liquid inlet valve (15) on the filter screen (5) is controlled to be opened, so that the magnetic fluid conveying device gradually fills magnetic fluid with a second preset quantity into the lower cavity (9) of the filter screen (5) at the bottom layer, the first electromagnetic valve (12) is simultaneously opened, the supplementary liquid recovery device discharges gas in the upper cavity (8) of the filter screen (5) at the bottom layer through the supplementary liquid recovery device, when the distance value detected by the distance sensor on the filter screen (5) at the bottom layer is equal to '0', the first electromagnetic valve (12) and the second liquid inlet valve (15) on the filter screen (5) at the bottom layer are closed, the blow-off valve (4) is opened, impurities at the lower part of the filter screen (5) are discharged, the second electromagnetic valve (13) on the filter screen (5) is controlled to be opened, and simultaneously the third electromagnetic valve (16) is controlled to be opened, and the discharge quantity of ferromagnetic impurities in the unit of the filter screen (5) is kept in the unit of time in the filter screen (9) is equal to the discharge quantity of the supplementary impurities in the unit of the filter screen (5).
2. The cooling system for a five-axis linkage machining center according to claim 1, wherein: when ferromagnetic impurities between two layers of filter screens (5) are cleaned, an air inlet valve (11) on a bottom layer of filter screen (5) is controlled to be opened, when the distance detected by a distance sensor on the filter screen (5) at the bottom layer is equal to a preset value, the air inlet valve (11) is controlled to be closed, a first liquid inlet valve (14) on the bottom filter screen (5) is opened, and a third preset amount of supplementing liquid is filled into the filter screen (5) at the bottom layer.
3. The cooling system for a five-axis linkage machining center according to claim 2, wherein: when the distance value detected by the distance sensor is smaller than a preset value, an air inlet valve (11) on the filter screen (5) at the bottom is controlled to be opened, so that the filter screen (5) at the bottom and the filter screen (5) at the top are kept in contact and simultaneously rotated, a second electromagnetic valve (13) on the filter screen (5) at the top is controlled to be opened, and a third liquid inlet valve (16) on the filter screen (5) at the top is controlled to be opened, so that the discharge amount of magnetic fluid in the lower chamber (9) in unit time is kept equal to the supplement amount of the supplement liquid in the lower chamber (9) in unit time, and finally ferromagnetic impurities adsorbed on the filter screen (5) at the top are transferred to the lower chamber (9) of the filter screen (5) at the bottom, and then the impurities at the lower part of the filter screen (5) at the bottom are cleaned, so that the ferromagnetic impurities between the two layers of the filter screen (5) can be cleaned.
4. The cooling system for a five-axis linkage machining center according to claim 1, wherein: when the nozzle (10) is opened, the cooling liquid in the cooling box (1) flows upwards, so that the filter screen (5) at the bottom layer is driven to move upwards, the filter screen (5) at the bottom layer moves upwards, and the outer frame (6) is enabled to clean the inner side wall of the cooling box (1).
5. The cooling system for a five-axis linkage machining center according to claim 1, wherein: the nozzle (10) is arranged at the bottom of the cooling box (1), and the nozzle (10) is connected with the side wall of the cooling box (1) through an angle adjusting component.
6. The cooling system for a five-axis linkage machining center according to claim 5, wherein: the angle adjusting assembly comprises a rotating motor, the rotating motor is fixed at the bottom of the cooling box (1), and the side wall of the central shaft of the rotating motor is fixedly connected with the side wall of the nozzle (10).
7. The cooling system for a five-axis linkage machining center according to claim 1, wherein: the magnetic fluid in the magnetic fluid conveying device is formed by mixing a magnetic sphere and base liquid, the magnetic fluid recycling device comprises a box body, and an electromagnetic filter plate is arranged in the box body and used for separating the magnetic sphere from the base liquid.
8. The cooling system for a five-axis linkage machining center according to claim 1, wherein: the outer side wall of the cylindrical elastic layer (701) is provided with a plurality of reinforcing ribs.
9. The cooling system for a five-axis linkage machining center according to claim 1, wherein: guide posts which are uniformly and symmetrically arranged left and right are arranged in the cooling box (1), the guide posts are in sliding connection with the outer frame (6), and holes for the guide posts to pass through are formed in the outer frame (6).
10. The cooling system for a five-axis linkage machining center according to claim 1, wherein: the filter strip is characterized in that rotating shafts (17) are fixedly connected to two ends of the filter strip (7), holes matched with the rotating shafts (17) are formed in one side, opposite to the outer frame (6), of the outer frame, torsion springs are arranged outside the rotating shafts (17), one ends of the torsion springs are fixedly connected with the outer frame (6), and the other ends of the torsion springs are fixedly connected with the rotating shafts (17).
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| CN202111280252.0A CN113770802B (en) | 2021-10-29 | 2021-10-29 | Supporting cooling system of five-axis linkage machining center |
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| CN202111280252.0A CN113770802B (en) | 2021-10-29 | 2021-10-29 | Supporting cooling system of five-axis linkage machining center |
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| CN113770802B true CN113770802B (en) | 2023-08-11 |
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| JP2011011205A (en) * | 2009-06-02 | 2011-01-20 | Nisshin Seisakusho:Kk | Magnetic filter device and coolant purifying device for machine tool |
| CN111207596A (en) * | 2020-03-04 | 2020-05-29 | 宁波恒普真空技术有限公司 | Cooling system |
| CN212043801U (en) * | 2019-12-30 | 2020-12-01 | 苏州昀灏精密模具有限公司 | Cooling device for cutting machining of precision die |
| CN113245900A (en) * | 2021-05-19 | 2021-08-13 | 宁波职业技术学院 | Magnetic aerosol minimal quantity lubrication device and method |
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2021
- 2021-10-29 CN CN202111280252.0A patent/CN113770802B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011011205A (en) * | 2009-06-02 | 2011-01-20 | Nisshin Seisakusho:Kk | Magnetic filter device and coolant purifying device for machine tool |
| CN212043801U (en) * | 2019-12-30 | 2020-12-01 | 苏州昀灏精密模具有限公司 | Cooling device for cutting machining of precision die |
| CN111207596A (en) * | 2020-03-04 | 2020-05-29 | 宁波恒普真空技术有限公司 | Cooling system |
| CN113245900A (en) * | 2021-05-19 | 2021-08-13 | 宁波职业技术学院 | Magnetic aerosol minimal quantity lubrication device and method |
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