CN106312684B - A milling machine structure with cutting fluid purification system - Google Patents

Abstract

The invention discloses a milling machine structure with a cutting fluid purification system, which comprises a workbench arranged on a milling machine main body, a collecting tray fixedly connected below the workbench, a washing nozzle slidably arranged on the collecting tray, and a cutting fluid purification device connected with the washing nozzle through a pipeline; the cutting fluid purifying device comprises a box body made of plastic, wherein a first groove body is arranged on one side of the box body, a second groove body and a third groove body are arranged on one side of the first groove body on the box body, and the third groove body is positioned below the second groove body; the second groove body is internally and rotatably provided with a magnetic roller, the magnetic roller comprises a magnetic roller main body in a circular tube shape, a plurality of magnetic rod containing cavities are formed in the magnetic roller main body, and cylindrical magnetic rods are arranged in the magnetic rod containing cavities; and a rotating shaft is arranged between two opposite side walls of the second groove body and is connected with a guide lug which is used for driving the magnetic bar to move towards the middle direction of the magnetic roller. The cutting fluid can be purified efficiently and energy-saving, so that the cutting fluid can be recycled for multiple times.

Description

A milling machine structure with cutting fluid purification system

technical field

The invention belongs to a machine tool structure for mechanical processing, and in particular relates to a milling machine structure with a cutting fluid purification system.

Background technique

During the working process of the milling machine, a large amount of cut iron filings will be mixed in the cutting fluid. Since the cutting fluid is recycled, it is necessary to purify the iron filings in the cutting fluid. With the improvement of machining accuracy, high-speed grinding and powerful grinding technology are developing rapidly. In addition to choosing reasonable grinding parameters, the circulation quality of grinding fluid must also be improved. Existing cutting fluid purification devices are mainly filter-type purification devices, which rely on filter media to remove impurities, such as filter screen, line gap, sheet and paper tape filters. In order to avoid the accumulation of iron filings, this filter type purification device needs to be cleaned regularly, which is very troublesome to use, and the purification effect on cutting fluid is poor, which may adversely affect the normal use of the machine tool.

The Chinese patent whose document number is CN203264855U discloses a machine tool cutting fluid purification device, which includes a frame, and the frame is provided with a magnetic roller and a rubber roller, and the magnetic roller is arranged opposite to the rubber roller. The magnetic roller is connected with a driving motor through a transmission mechanism, and a scraper is provided on one side of the magnetic roller, and the scraper is in close contact with the magnetic roller. With this machine tool cutting fluid purification device, when the dirty cutting fluid flows through the slowly rotating magnetic roller adsorption area, the magnetic solid particles are magnetized under the action of the magnetic field, adsorbed to the surface of the magnetic roller, and taken out of the cutting fluid flow area. Squeeze and dehydrate through the rubber roller, and then rely on the scraper attached to the magnetic roller to scrape off the iron filings on the magnetic roller. The machine tool cutting fluid purification device can realize automatic separation of ferromagnetic substances, keep the cutting fluid clean, improve processing performance and tool life, and reduce environmental pollution; the machine tool cutting fluid purification device also has the advantages of simple structure and convenient use.

The magnetic roller of the above-mentioned patent includes a magnet portion and a rubber portion, the magnet portion is distributed along 270° of the circumference of the magnetic roller, and the rubber portion is distributed along 90° of the circumference of the magnetic roller, so as to facilitate the separation of iron filings from the magnetic roller However, with such a structure, when the scraper scrapes relative to the magnetic roller, the scraper needs to push the iron filings from the magnet part to the rubber part to separate the iron filings from the magnetic roller. In this process, the iron filings and the magnet part The magnetic force between them produces greater resistance to the scraper, so the torque and power consumption required by the motor are relatively large, and the power consumption is also large. On the other hand, if the cutting fluid just comes into contact with the rubber part when it flows through, it cannot be absorbed, that is, it is difficult to ensure the purification effect of the cutting fluid.

Contents of the invention

The technical problem to be solved by the present invention is to provide an energy-saving and environment-friendly milling machine structure in which the cutting fluid can be recycled, aiming at the deficiencies in the prior art.

In order to achieve the purpose of the present invention, the following technical solutions are adopted: a milling machine structure with a cutting fluid purification system, including a workbench installed on the main body of the milling machine, a collecting tray fixedly connected under the workbench, and fixedly installed on the Two horizontal nozzles at one end of the collecting tray, a flushing nozzle slidingly installed on the collecting tray, and a cutting fluid purification device connected to the horizontal nozzle and the flushing nozzle through pipes;

A channel for containing cutting fluid is formed between the inner wall of the collection tray and the outer periphery of the worktable, and a collection box is connected below a top position of the collection box;

The outer wall of one long side of the collecting tray is equipped with a nozzle track, and a nozzle slider is slidably connected to the nozzle rail, and the flushing nozzle is installed on the nozzle slider, and the nozzle slider is also connected with a The locking screw that the nozzle slide seat is fixed on the nozzle track;

The cutting fluid purification device includes a box made of plastic material, one side of the box is a first tank, and the side of the first tank on the box is a second tank and a third tank, and The third tank is located below the second tank;

The upper end of the first tank body is open, and the side of the upper end of the first tank body away from the second tank body is integrally connected with a water inlet joint mounting plate, and a water inlet joint is installed on the water inlet joint mounting plate, and the water inlet joint The joint is connected to the collection box through a pipeline;

The first filter tank is inserted above the first tank body, the lower end of the first filter tank is integrally formed with a lower convex part inserted into the upper end of the first tank body, and the lower end of the lower convex part is connected with a Water inlet pipe, a filter screen is installed in the first filter tank, a step is formed above the lower convex part in the first filter tank, and a space is left between the step part and the filter screen; the water outlet of the water inlet joint located above the first filter tank;

The bottom of the first tank body is fixedly connected with a vertically arranged float positioning column, and the first float is slidably sleeved on the float positioning column; the first float is cylindrical as a whole, and the middle of the first float is formed with a The through hole where the float positioning column is slidingly connected, the upper end of the first float is located on the outer periphery of the through hole to form an annular oil inlet, and the lower end of the first float is integrally connected with an oil outlet port, and the oil outlet port is connected to the oil inlet connected; the middle part of the side wall of the first tank body is connected with an oil outlet joint, and the oil outlet joint and the oil outlet interface are connected by a hose;

An oil storage tank is hung on the outer wall of the first tank below the oil outlet port;

The upper end of the second tank body is lower than the upper end of the first tank body, a secondary water inlet pipe is installed on the side wall adjacent to the second tank body, and the lower end of the secondary water inlet pipe extends to the first tank body At the bottom, the water outlet at the upper end of the secondary water inlet pipe is located above the second tank body, and the inner wall of the second tank is located below the water outlet of the secondary water inlet pipe and is equipped with a water guide plate that is high on the outside and low on the inside;

A magnetic roller is installed in rotation in the second tank, and the magnetic roller includes a cylindrical magnetic roller body and two end covers connected to both ends of the magnetic roller body; a plurality of magnetic rollers are formed on the magnetic roller. The magnetic rod cavities arranged in the axial direction of the roller body, each magnetic rod cavities are equidistantly arranged along the circumferential direction of the magnetic roller main body; The radial ends are semicircular; a cylindrical magnetic rod is installed in the magnetic rod cavity, and the magnetic field direction of the magnetic rod is along the diameter direction of the magnetic rod;

A rotating shaft is fixedly installed between the two opposite side walls of the second trough, and a connecting plate arranged radially along the magnetic roller is connected to the rotating shaft. Two connecting pieces are connected at both ends of the connecting plate, and the two A guide lug for guiding the magnetic rod to move toward the rotating shaft is formed on the opposite end surface of the connecting piece;

The wall surface of the guide bump facing the direction of the rotating shaft is a guide surface, and the guide surface is an arc-shaped surface with a high middle and low sides;

The main body of the magnetic roller is integrally formed of ceramic material, and the outer cover of the magnetic roller is provided with a stainless steel sleeve;

A plurality of driven magnets distributed in a circular array are installed on the outer wall of one of the end covers, and a water wheel for driving the magnetic roller is installed on the outer wall of the second tank close to the driven magnets. mechanism;

The water wheel mechanism includes a water wheel housing integrally connected to the outer side wall of the second tank body, a water wheel cover sealed and connected to the outer end of the water wheel housing, and a water wheel installed in the water wheel housing in rotation; the water wheel The outer wall of the wheel housing is integrally connected with a water inlet connecting pipe along the tangential direction of the water wheel housing. The outer wall of the second tank body is located at the center of the water wheel housing and formed with a rotating sleeve; the center of the outer wall of the water wheel cover is integrally connected with a There is a gap between the water outlet pipe and the rotating sleeve; the water wheel includes a circular water wheel base plate, a rotating ring integrally connected to the middle of one side of the water wheel base plate, and an integral connection to the water wheel base plate And the plurality of water wheel blades located on the outer periphery of the rotating ferrule, each water wheel blade is arranged in a circular array, and each water wheel blade is arranged radially along the water wheel base plate; the other side of the water wheel base plate is fixedly connected with each The driving magnet corresponding to the position of the driven magnet; the rotating collar is rotatably socketed on the rotating sleeve;

The bottom of the second tank body is a semicircular arc groove bottom with the same center as the magnetic roller. The second tank body is located at the bottom of the arc groove and has an overflow channel on the side away from the first tank body. The lower end of the flow channel is located above the third tank body;

A plurality of iron rods are installed equidistantly along the bottom of the arc-shaped groove on the second groove body, and each iron rod is arranged parallel to the rotating shaft;

A first motor is fixedly installed on the side wall of the second tank away from the water wheel mechanism, and the output shaft of the motor is fixedly connected with a turret, and a semicircle is fixedly connected with the turret to make the Iron bar magnetized arc magnet;

An iron chip discharge plate is installed on the side of the second tank body far away from the first tank body, and the iron chip discharge plate includes a discharge plate body arranged obliquely, which is integrally and symmetrically connected to the discharge plate body Two side guide plates on both sides, and a U-shaped hanging plate connected to the top of each side guide plate; the U-shaped hanging plate is hung between two opposite side walls of the second tank body, and the U-shaped hanging plate It is locked and fixed with the side wall of the second tank by screws;

Water seepage holes are opened on the discharge plate body, the internal end of the discharge plate is low and the external end is high, the internal end of the discharge plate slides against the outer periphery of the magnetic roller, and the position of the guide protrusion is in line with the discharge plate. Corresponding to the position of the inner end of the plate body;

An iron slag tank is hung on the outer wall of the second tank, and the outer end of the discharge plate is located at the upper end of the iron slag tank;

The upper part of the third tank body away from the side of the first tank body is provided with a secondary filter tank insertion opening, and a magnetic filter box is inserted in the secondary filter tank insertion opening, and the magnetic filter box is in the shape of a rectangular tank body. The bottom surface of the magnetic filter box is formed with a downwardly protruding lower convex ring, and the magnetic strips arranged equidistantly are connected to the lower convex ring; The ring is lower than the lower end of the secondary filter tank insertion port;

A filter cotton rack is installed in the third tank, and a filter cotton is installed above the filter cotton rack. The filter cotton rack includes a rectangular support plate and a plurality of support feet integrally connected to the lower end of the support plate. The support plate Uniformly formed with through holes;

A liquid return pipe is connected to the side wall of the third tank, an oil return pump is connected to the liquid return pipe, and the liquid return pipe is connected to the horizontal nozzle through a hose;

The third tank body is provided with a second float floating on the liquid surface, the upper end of the second float is formed with a ring-shaped oil inlet, and the lower end of the second float is connected with an oil outlet joint, and the oil outlet joint is connected to the The oil inlet is connected, and the oil outlet connection is connected to the inlet end of the liquid return pipe through a hose; the periphery of the second float is integrally connected with a plurality of outer extension bars arranged at equal distances; the second float The center position of the upper end is connected with a baffle pillar, the upper end of the baffle pillar is connected with an inner baffle, and the outer circumference of the lower end of the inner baffle is connected with an outer baffle through a plurality of connecting ribs, and the upper end surface of the inner baffle is middle height, A conical surface with a low outer circumference, the upper end surface of the outer shield is a conical surface with a high inner circumference and a low outer circumference;

The side wall of the third tank body is located under the cotton filter rack and is connected with a liquid return pump, the liquid inlet end of the liquid return pump is connected with the third tank body through a pipeline, and the liquid outlet end of the liquid return pump is connected to the third tank body through a hose. The water inlet connecting pipe of the water wheel housing is connected, and the water outlet connecting pipe is connected with the flushing nozzle through a hose.

As a preferred solution: the filter cotton includes two layers stacked from top to bottom and connected together, the thickness of the upper layer is 10mm, and the thickness of the lower layer is 15-20mm;

Each layer of filter cotton is composed of a hydrophilic and lipophilic additive layer and a filter layer that wraps the additive layer; the hydrophilic and lipophilic additive layer is made of super amphiphilic material, and the filter layer is composed of a composite filter made of cotton;

The super amphiphilic material is a nanoscale composite material, which contains a nanoscale space composed of regularly arranged hydrophilic polymer segments and lipophilic polymer segments; the composite material is a sparse porous structure, The pore size of the composite material in the upper and lower filter cottons is 45nm and 30nm successively; the composite filter cotton includes a filter cotton layer, and activated carbon particles are evenly distributed inside the filter cotton layer, and the top surface and the bottom surface of the filter cotton are both It is a thin layer of non-woven fabric;

The filter cotton layer and the non-woven thin layer are made by ultrasonic pressing, and the compacted area of the pressing point accounts for 3% of the total area; The area is 5 square millimeters.

Compared with the prior art, the beneficial effect of the present invention is: the milling machine of the present invention is equipped with a high-efficiency and energy-saving cutting fluid purification device, which is beneficial to the multiple recycling of the cutting fluid, energy saving and environmental protection.

specifically:

By setting the float positioning column, the float can only move in the vertical direction to ensure that the oil inlet is always kept horizontal, and only the upper oil floating layer can enter the first float through the oil inlet, and be discharged into the oil storage tank through the hose , when the thickness of the slick oil layer is small, the oil inlet of the first float is above the liquid level, and the cutting fluid will not flow in from the oil inlet. The first float adjusts the material density so that when the oil layer is thick, the oil inlet can just be submerged under the liquid surface; when the oil layer is thin, the lower part of the first float is in the cutting fluid, and the oil inlet is above the liquid surface .

When the liquid level in the first tank is higher than the upper end of the second tank, the cutting fluid at the bottom of the first tank flows from the secondary water inlet pipe to the water guide plate from bottom to top, and along the outer edge of the water guide plate Evenly flow into the second tank.

After the cutting fluid enters the second groove body, it flows between the bottom of the arc groove and the magnetic roller, and each iron bar is magnetized by the arc magnet, and part of the iron filings in the cutting fluid is adsorbed on the upper surface of the bottom of the arc groove; The rod also magnetizes the stainless steel sleeve, and adsorbs part of the iron filings in the cutting fluid on the outer surface of the stainless steel sleeve; the first motor rotates half a circle at intervals to keep the arc magnet away from the iron rod and gather at the bottom of the arc groove The iron filings on the magnetic roller are attracted to the outer surface of the stainless steel sleeve, and the magnetic roller is driven by the water wheel mechanism, and is driven by the driving magnet and the driven magnet, so that the magnetic roller rotates, and the iron filings on the outer surface of the stainless steel sleeve follow. When the iron filings move to the position of the guide protrusion, the magnetic rod is blocked by the guide protrusion and moves along the magnetic rod cavity to the center of the magnetic roller, so that the magnetic force received by the stainless steel sleeve at this position In this way, the iron filings at this position are blocked by the iron filings discharge plate, that is, pushed to the iron filings discharge plate by the rear iron filings and gradually fall from the discharge plate into the iron slag groove. Since the magnetic bar is designed to be movable and cooperate with the guide protrusion, the iron filings can be smoothly pushed to the iron filing discharge plate, and there will be no resistance to the movement of the iron filings due to the action of the magnetic force, and the stainless steel sleeve is also reduced. wear, so that the water wheel mechanism only needs a small driving force to drive the magnetic roller to operate normally.

Description of drawings

Fig. 1, Fig. 2 are structural representations of the present invention.

Figure 3 and Figure 4 are structural schematic diagrams of the cutting fluid purification device.

Fig. 5 is a schematic diagram of an exploded structure of the cutting fluid purification device.

Fig. 6 and Fig. 7 are schematic cross-sectional structure diagrams of the box body.

Fig. 8 is a schematic diagram of the installation structure of the first motor.

Fig. 9 is a schematic diagram of the installation structure of the water wheel mechanism.

Fig. 10 is a structural schematic diagram of a water wheel.

Fig. 11 is a schematic structural view of the first filter tank.

Fig. 12 is a schematic structural view of the first float.

Fig. 13 is a schematic structural view of a magnetic roller.

Fig. 14 is a schematic diagram of an exploded structure of a magnetic roller.

Fig. 15 is a structural schematic diagram of the shaft part.

Fig. 16 is a schematic structural view of the iron filings discharge plate.

Fig. 17 is a schematic structural view of the second float.

Fig. 18 is a structural schematic diagram of the magnetic filter box part.

Fig. 19 is a schematic structural view of the filter cotton and the filter cotton frame.

Fig. 20 is a schematic structural view of the cutting fluid purification device in Embodiment 2.

Fig. 21 is a structural schematic diagram of a liquid return pump.

Fig. 22 is a schematic cross-sectional structural view of the liquid return pump.

Fig. 23 is a schematic diagram of an exploded structure of a liquid return pump.

1. Main body of milling machine; 11. Working table; 12. Collection plate; 121. Channel; 13. Horizontal nozzle; 14. Flushing nozzle; 141. Slider seat of nozzle; 142. Locking screw; 15. Collection box; ;2, cutting fluid purification device; 20, box body; 20a, first tank body; 20b; second tank body; 20c, third tank body; 201, water inlet joint; 202, oil outlet joint; 203, float positioning Column; 204, secondary water inlet pipe; 205, water inlet joint mounting plate; 206, water guide plate; 207, arc groove bottom; 2071, iron rod; 208, overflow channel; 209, secondary filter tank insertion port; 21, magnetic roller; 210, main body of magnetic roller; 2101, magnetic rod cavity; 211, end cover; 212, driven magnet; 213, magnetic rod; 214, rotating shaft; 2141, connecting plate; 2142, connecting piece; 2143, Guide bump; 22, iron chip discharge plate; 221, discharge plate body; 222, side guide plate; 223, U-shaped hanging plate; 23, magnetic filter box; 231, lower convex ring; 232, magnetic strip; 24 , oil return pump; 26, liquid return pump; 260, gas storage tank; 261, pump body; 2611, gas pipe; 2612, pump cavity; 2613, water outlet joint; 2614, rotor cavity; 2615, rotor fixed shaft; 262, rotor Component; 2621, magnet rotor; 2622, rotor base plate; 2623, vane; 2624, air chamber; 2625, air hole; 2626, collar; 263, pump cover; 27, first motor; 271, turret; 272, arc Magnet; 28, water wheel mechanism; 281, water wheel shell; 2811, water inlet connection; 2812, rotating sleeve; 282, water wheel; 2821, water wheel base plate; 2822, rotating ferrule; 2823, water wheel blade; , drive magnet; 283, water wheel cover; 2831, water outlet connection; 29, filter cotton; 291, filter cotton holder; 2a, oil storage tank; 2b, first filter tank; 2b01, lower convex part; 2b02, water inlet pipe; 2b1 , filter screen; 2c, iron slag tank; 2d, first float; 2d1, through hole; 2d2, oil inlet; 2d3, oil outlet interface; 2f, second float; 2f1, outer extension bar; 2f2, oil inlet ; 2f3, baffle pillar; 2f4, inner baffle; 2f5, outer baffle; 2f6, oil outlet connection.

Detailed ways

Example 1

As shown in Figures 1 to 19, a milling machine structure with a cutting fluid purification system described in this embodiment includes a workbench 11 installed on the main body of the milling machine 1, and a collecting tray 12 fixedly connected under the workbench , two horizontal spray heads 13 fixedly installed at one end of the collecting tray and a flushing spray head 14 slidingly installed on the collecting tray, and a cutting fluid purification device 2 connected with the horizontal spray head and the flushing spray head through pipelines.

The main body of the milling machine is a conventional milling machine structure, which will not be described here.

A channel 121 for accommodating cutting fluid is formed between the inner wall of the collecting tray and the outer periphery of the worktable, and a collecting box 15 is connected below a top position of the collecting box; The oily cutting fluid is flushed into the collection box.

The outer wall of one long side of the collection tray is equipped with a nozzle track 16, which is slidably connected with a nozzle slide 141, and the flushing nozzle is installed on the nozzle slide, and the nozzle slide is also connected with a useful Use the lock screw 142 to fix the nozzle slide on the nozzle track. The position of the nozzle sliding seat can be adjusted according to the specific conditions of the processed workpiece, thereby adjusting the flushing angle of the flushing nozzle.

The cutting fluid purifying device includes a box body 20 made of plastic, one side of the box body is a first tank body 20a, and the side of the first tank body on the box body is a second tank body 20b and a third tank body. body 20c, and the third tank body is located below the second tank body.

The upper end of the first tank body is open, and the side of the upper end of the first tank body far away from the second tank body is integrally connected with a water inlet joint mounting plate 205, and a water inlet joint 201 is installed on the water inlet joint mounting plate, the The water inlet joint is connected with the collection box through a pipeline.

The first filter tank 2b is inserted above the first tank body, and the lower end of the first filter tank is integrally formed with a lower convex part 2b01 inserted into the upper end of the first tank body, and the lower end of the lower convex part is close to a vertex position A water inlet pipe 2b02 is connected, a filter screen 2b1 is installed in the first filter tank, a step is formed above the lower convex part in the first filter tank, and a space is left between the step and the filter screen; the water inlet The water outlet of the joint is located above the first filter tank.

The aperture of the filter screen is 0.3-1.0 mm, which is used to initially filter out large particles of iron filings, and the pre-filtered cutting fluid is discharged into the first tank body through the water inlet pipe, and the outlet end of the water inlet pipe is located in the first tank body Below the liquid level, the oil slick on the upper part of the first tank body can not be washed away like this.

The bottom of the first tank body is fixedly connected with a vertically arranged float positioning column 203, and the first float 2d is slidingly sleeved on the float positioning column; the first float is cylindrical as a whole, and the middle of the first float is formed with a The through hole 2d1 slidingly connected with the float positioning post, the upper end of the first float is located on the outer periphery of the through hole to form an annular oil inlet 2d2, and the lower end of the first float is integrally connected with an oil outlet port 2d3, the oil outlet port It communicates with the oil inlet; the middle part of the side wall of the first tank body is connected with an oil outlet joint 202, and the oil outlet joint and the oil outlet interface are connected by a hose.

By setting the float positioning column, the float can only move in the vertical direction to ensure that the oil inlet is always kept horizontal, and only the upper oil floating layer can enter the first float through the oil inlet, and be discharged into the oil storage tank through the hose , when the thickness of the slick oil layer is small, the oil inlet of the first float is above the liquid level, and the cutting fluid will not flow in from the oil inlet. The first float adjusts the material density so that when the oil layer is thick, the oil inlet can just be submerged under the liquid surface; when the oil layer is thin, the lower part of the first float is in the cutting fluid, and the oil inlet is above the liquid surface .

The first float can also be designed as a structure with a cavity, and an adjustable piston structure is designed to change the size of the cavity by adjusting the piston to adjust the overall density of the first float.

An oil storage tank 2a is hung on the outer wall of the first tank below the oil outlet port.

The upper end of the second tank body is lower than the upper end of the first tank body, and a secondary water inlet pipe 204 is installed on the side wall adjacent to the second tank body, and the lower end of the secondary water inlet pipe extends to the first tank body At the bottom of the body, the water outlet at the upper end of the secondary water inlet pipe is located above the second tank body, and the inner wall of the second tank is located below the water outlet of the secondary water inlet pipe.

When the liquid level in the first tank is higher than the upper end of the second tank, the cutting fluid at the bottom of the first tank flows from the secondary water inlet pipe to the water guide plate from bottom to top, and along the outer edge of the water guide plate Evenly flow into the second tank.

A magnetic roller 21 is installed rotating in the second tank, and the magnetic roller includes a circular tube-shaped magnetic roller main body 210, and two end caps 211 connected to the two ends of the magnetic roller main body; A magnetic rod chamber 2101 arranged axially along the magnetic roller main body, each magnetic rod chamber is equidistantly arranged along the circumferential direction of the magnetic roller main body; Both ends of the cavity along the radial direction of the magnetic roller are semicircular; a cylindrical magnetic rod 213 is installed in the magnetic rod cavity, and the magnetic field direction of the magnetic rod is along the diameter direction of the magnetic rod.

A rotating shaft 214 is fixedly installed between two opposite side walls of the second trough, and a connecting plate 2141 arranged radially along the magnetic roller is connected to the rotating shaft, and two connecting pieces are connected to two ends of the connecting plate 2142 , guide projections 2143 are formed on the opposite end surfaces of the two connecting pieces for guiding the magnetic bar to move toward the rotation axis. The wall surface of the guide protrusion facing the direction of the rotating shaft is a guide surface, and the guide surface is an arc-shaped surface with a high center and low sides. The main body of the magnetic roller is integrally formed of ceramic material, and the outer surface of the magnetic roller is provided with a stainless steel sleeve (not shown in the figure).

A plurality of driven magnets 212 distributed in a circular array are installed on the outer wall of one of the end covers, and a water pump for driving the magnetic roller to rotate is installed on the outer wall of the second tank close to the driven magnet. Wheel mechanism 28.

The water wheel mechanism includes a water wheel housing 281 integrally connected to the outer wall of the second tank body, a water wheel cover 283 sealingly connected to the outer end of the water wheel housing, and a water wheel 282 rotatably installed in the water wheel housing; The outer wall of the water wheel shell is integrally connected with a water inlet connecting pipe 2811 along the tangential direction of the water wheel shell, and the outer wall of the second tank body is located at the center of the water wheel shell and formed with a rotating sleeve 2812; the outer wall of the water wheel cover The central position is integrally connected with a water outlet pipe 2831, and there is a distance between the water outlet pipe and the rotating sleeve; the water wheel includes a circular water wheel base plate 2821, and a rotating ring 2822 integrally connected to one side of the water wheel base plate. And a plurality of water wheel blades 2823 integrally connected on the water wheel base plate and positioned at the outer periphery of the rotating collar, each water wheel blade is arranged in a circular array, and each water wheel blade is arranged radially along the water wheel base plate; the water wheel base plate The other side is fixedly connected with driving magnets 2824 corresponding to the positions of the driven magnets; the rotating collar is rotatably sleeved on the rotating sleeve.

The water wheel of the water wheel mechanism is driven by the cutting fluid output by the liquid return pump described below. The cutting fluid is sprayed into the water wheel shell from the water inlet to drive the water wheel to rotate. When the water wheel rotates, the drive magnet drives the The moving magnet moves, thereby driving the magnetic roller to rotate.

The bottom of the second tank body is a semicircular arc groove bottom 207 concentric with the magnetic roller, and the second tank body is located on the side of the arc groove bottom away from the first tank body and has an overflow channel 208 , the lower end of the overflow channel is located above the third tank body.

A plurality of iron rods 2071 are installed equidistantly along the arc-shaped groove bottom below the arc-shaped groove bottom on the second tank body, and each iron rod is arranged parallel to the rotating shaft.

A first motor 27 is fixedly installed on the side wall of the second tank away from the water wheel mechanism, and the output shaft of the motor is fixedly connected with a turret 271, and a semicircle is fixedly connected on the turret for making The iron bar is magnetized by an arc magnet 272 .

An iron chip discharge plate 22 is installed on the side of the second tank body far away from the first tank body, and the iron chip discharge plate includes a discharge plate body 221 arranged obliquely, which is integrated and symmetrically connected to the discharge plate. Two side guide plates 222 on both sides of the plate body, and a U-shaped hanging plate 223 connected to the top of each side guide plate; the U-shaped hanging plate is hung between two opposite side walls of the second tank body, and The U-shaped hanging plate and the side wall of the second tank body are locked and fixed by screws.

A seepage hole is opened on the discharge plate body, the diameter of the seepage hole is 0.1-0.2mm, the inner end of the discharge plate is lower than the outer end, and the inner end of the discharge plate slides against the outer periphery of the magnetic roller. The position of the guide protrusion corresponds to the position of the inner end of the discharge plate body.

An iron slag tank 2c is hung on the outer wall of the second tank, and the outer end of the discharge plate is located at the upper end of the iron slag tank.

After the cutting fluid enters the second groove body, it flows between the bottom of the arc groove and the magnetic roller, and each iron bar is magnetized by the arc magnet, and part of the iron filings in the cutting fluid is adsorbed on the upper surface of the bottom of the arc groove; The rod also magnetizes the stainless steel sleeve, and adsorbs part of the iron filings in the cutting fluid on the outer surface of the stainless steel sleeve; the first motor rotates half a circle at intervals to keep the arc magnet away from the iron rod and gather at the bottom of the arc groove The iron filings on the magnetic roller are attracted to the outer surface of the stainless steel sleeve, and the magnetic roller is driven by the water wheel mechanism, and is driven by the driving magnet and the driven magnet, so that the magnetic roller rotates, and the iron filings on the outer surface of the stainless steel sleeve follow. When the iron filings move to the position of the guide protrusion, the magnetic rod is blocked by the guide protrusion and moves along the magnetic rod cavity to the center of the magnetic roller, so that the magnetic force received by the stainless steel sleeve at this position In this way, the iron filings at this position are blocked by the iron filings discharge plate, that is, pushed to the iron filings discharge plate by the rear iron filings and gradually fall from the discharge plate into the iron slag groove. Since the magnetic bar is designed to be movable and cooperate with the guide protrusion, the iron filings can be smoothly pushed to the iron filing discharge plate, and there will be no resistance to the movement of the iron filings due to the action of the magnetic force, and the stainless steel sleeve is also reduced. wear, so that the water wheel mechanism only needs a small driving force to drive the magnetic roller to operate normally.

The upper part of the third tank body away from the side of the first tank body is provided with a secondary filter tank insertion opening 209, and a magnetic filter box 23 is inserted in the secondary filter tank insertion opening, and the magnetic filter box is a rectangular tank body shape, the bottom surface of the magnetic filter box is formed with a downwardly protruding lower convex ring 231, and the magnetic strips 232 arranged equidistantly are connected to the lower convex ring; the magnetic filter box is inserted into place from the secondary filter tank insertion port After that, the lower raised ring is lower than the lower end of the secondary filter tank insertion port.

The magnetic filter box functions as a fine filter. Since there are multiple magnetic strips connected to the lower convex ring, there are gaps between each magnetic strip. Iron filings are also attracted to the magnetic strip. After using for a period of time, remove the magnetic filter box, clean up the iron filings on the magnetic filter box, and then reinstall it into the box.

A filter cotton holder 291 is installed in the third tank, and a filter cotton 29 is installed above the filter cotton holder. The filter cotton holder includes a rectangular support plate and a plurality of support feet integrally connected to the lower end of the support plate. Through-holes are evenly formed on the board.

The filter cotton is used to absorb a small amount of oil stain remaining in the cutting fluid, and the filter cotton needs to be replaced regularly.

A liquid return pipe is connected to the side wall of the third tank, an oil return pump 24 is connected to the liquid return pipe, and the liquid return pipe is connected to the horizontal spray head through a hose.

The third tank body is provided with a second float 2f floating on the liquid surface, the upper end of the second float is formed with an annular oil inlet 2f2, and the lower end of the second float is connected with an oil outlet joint 2f6. The oil connecting pipe is connected with the oil inlet, and the oil outlet connecting pipe is connected with the inlet end of the liquid return pipe through a hose; the periphery of the second float is integrally connected with a plurality of outer extension bars 2f1 arranged at equal distances; The center position of the upper end of the second float is connected with a baffle pillar 2f3, the upper end of the baffle pillar is connected with an inner baffle 2f4, and the outer periphery of the lower end of the inner baffle is connected with an outer baffle 2f5 through a plurality of connecting ribs, and the inner baffle The upper end surface of the outer baffle is a conical surface with a high middle height and a low outer circumference, and the upper end surface of the outer baffle is a conical surface with a high inner circumference and a low outer circumference.

In the process of the cutting fluid entering the second tank from the first tank, there is still a certain amount of oil mixed with it. When the cutting fluid passes through the magnetic filter box, the flow rate is very low, which is conducive to the accumulation of oil particles, so that the liquid surface in the third tank A layer of oil will collect on the inside.

The function of the horizontal nozzle is to wash the cutting fluid and iron filings in the channel 121 into the collection box by spraying cutting fluid. The cutting fluid only needs to filter out most of the iron filings before it can be used. Cooperate with the second floater to first suck away the slick oil on the upper part of the liquid surface in the third tank, so that the content of oil pollution in the third tank can be maintained at a relatively low level.

The side wall of the third tank body is located under the cotton filter rack and is connected with a liquid return pump 26. The liquid inlet end of the liquid return pump communicates with the third tank body through a pipeline, and the liquid outlet end of the liquid return pump passes through a hose. It is connected with the water inlet connection pipe of the water wheel housing, and the water outlet connection pipe is connected with the flushing nozzle through a hose.

The cutting fluid filtered by the filter cotton can be used again after removing most of the oil and iron filings.

The oil return pump, the liquid return pump, and the first motor are respectively electrically connected to the controller, and the controller sets the action of each actuator according to the needs; the controller is connected with a control switch, which is used to control the oil return pump or the The liquid return pump is turned on to spray cutting fluid from the horizontal nozzle or flushing nozzle.

The controller can use a PLC controller or a single-chip microcomputer, and the work of the controller to control motors, pumps, etc. is a conventional technology in the art, and will not be repeated again.

Example 2

With reference to Fig. 20 to Fig. 23, this embodiment further makes the following improvements on the basis of embodiment 1:

The liquid return pump includes a pump body 261, a rotor assembly 262, and a pump cover 263; one end of the pump body is integrally connected with a circular pump chamber 2612, and a cylindrical cylinder communicating with the pump chamber is formed in the pump body. The inner diameter of the rotor cavity 2614 is smaller than the inner diameter of the pump cavity, and the bottom of the rotor cavity is fixedly connected with a rotor fixing shaft 2615 coaxially arranged with the rotor cavity.

A water outlet connector 2613 is formed on the side of the pump cavity; the pump cover is fixedly connected to the outer end of the pump cavity, and a water inlet connector is formed on the pump cover.

The rotor assembly is installed in the space between the pump body and the pump cover; the rotor assembly includes a magnet rotor 2621, a circular rotor base plate 2622 fixedly connected to one end of the magnet rotor, and an integrated connection between the rotor base plate and the magnet. A plurality of blades 2623 at one end of the rotor, each blade is connected to the rotor substrate in a circular array; a ventilation cavity 2624 is formed in the blade, the opening of the ventilation cavity is located on the side of the rotor substrate, and air holes 2625 are evenly formed on the blades, The air hole communicates with the ventilation cavity; the end surface of the rotor substrate facing the magnet rotor is formed with a protruding ring 2626 against the end surface of the pump body; holes; the magnet rotor is located in the rotor cavity, the rotor substrate and blades are located in the pump cavity, there is a gap of 2-3mm between the inner wall of the rotor cavity and the outer wall of the magnet rotor, and the pump body is installed There are stator coils that drive the magnets to turn.

An air pipe 2611 is also connected to the pump body, and the air pipe communicates with the cavity of the rotor, and the other end of the air pipe is connected to an air storage tank 260 filled with ozone.

During the use of cutting fluid, bacteria will be mixed in, which will cause the cutting fluid to deteriorate and stink, so the bacteria in the cutting fluid are killed by ozone.

Ozone gas enters the rotor cavity from the air pipe, then enters the pump cavity through the ventilation cavity and the air hole, and mixes with the cutting fluid in the pump cavity. Due to the continuous rotation of the blades, the contact between the ozone gas and the cutting fluid is sufficient, and the bactericidal effect is good. That is to say, the liquid return pump not only plays the role of pump, but also plays the role of stirring and mixing. A solenoid valve is also connected to the air pipe between the gas storage tank and the liquid return pump, and the solenoid valve is opened only when the liquid return pump is working.

In addition, the ozone gas is evenly mixed in the cutting fluid, and the cutting fluid is sprayed from the horizontal nozzle or the flushing nozzle, which enhances the flushing force, and the output of the cutting fluid is less in the same time, reducing the usage of the cutting fluid and saving energy. .

Example 3

This embodiment further makes the following improvements on the basis of embodiment 1 or 2:

The filter cotton includes two layers stacked from top to bottom and connected together, the thickness of the upper layer is 10mm, and the thickness of the lower layer is 15-20mm;

Each layer of filter cotton is composed of a hydrophilic and lipophilic additive layer and a filter layer that wraps the additive layer; the hydrophilic and lipophilic additive layer is made of super amphiphilic material, and the filter layer is composed of a composite filter made of cotton;

The super amphiphilic material is a nanoscale composite material, which contains a nanoscale space composed of regularly arranged hydrophilic polymer segments and lipophilic polymer segments; the composite material is a sparse porous structure, The pore size of the composite material in the upper and lower filter cottons is 45nm and 30nm successively; the composite filter cotton includes a filter cotton layer, and activated carbon particles are evenly distributed inside the filter cotton layer, and the top surface and the bottom surface of the filter cotton are both It is a thin layer of non-woven fabric;

The filter cotton layer and the non-woven thin layer are made by ultrasonic pressing, and the compacted area of the pressing point accounts for 3% of the total area; The area is 5 square millimeters.

The filter cotton is used to absorb a small amount of oil remaining in the cutting fluid, and the filter cotton is a composite material with decreasing pore size from top to bottom, which significantly improves the adsorption capacity of small particle size oil, and has a relatively long service life.

The cutting fluid comprises the following components in terms of weight percentage:

Polyvinyl alcohol 31~38; alkenyl succinic acid 16~22; triethanolamine 10~12; edetate disodium 8~10; isopropanol 6~8; borax 3~5; emulsified silicone oil 1~2 ; Benzoic acid 6-8.

Claims (2)

1. A milling machine structure with a cutting fluid purification system, characterized in that: it includes a workbench installed on the main body of the milling machine, a collection plate fixedly connected under the workbench, and two horizontal nozzles fixedly installed at one end of the collection plate And two flushing nozzles slidingly installed on the collecting tray, and a cutting fluid purification device connected to the horizontal nozzle and the flushing nozzle through pipes; A channel for containing cutting fluid is formed between the inner wall of the collection tray and the outer periphery of the worktable, and a collection box is connected below a top position of the collection box; The outer wall of a long side of the collecting tray is equipped with a nozzle track, and a nozzle slider is slidably connected to the nozzle rail, and each of the flushing nozzles is installed on a nozzle slider, and the nozzle slider is also mounted on the nozzle slider. Connected with locking screws for fixing the nozzle slide on the nozzle track; The cutting fluid purification device includes a box made of plastic material, one side of the box is a first tank, and the side of the first tank on the box is a second tank and a third tank, and The third tank is located below the second tank; The upper end of the first tank body is open, and the side of the upper end of the first tank body away from the second tank body is integrally connected with a water inlet joint mounting plate, and a water inlet joint is installed on the water inlet joint mounting plate, and the water inlet joint The joint is connected to the collection box through a pipeline; The first filter tank is inserted above the first tank body, the lower end of the first filter tank is integrally formed with a lower convex part inserted into the upper end of the first tank body, and the lower end of the lower convex part is connected with a Water inlet pipe, a filter screen is installed in the first filter tank, a step is formed above the lower convex part in the first filter tank, and a space is left between the step part and the filter screen; the water outlet of the water inlet joint located above the first filter tank; The bottom of the first tank body is fixedly connected with a vertically arranged float positioning column, and the first float is slidably sleeved on the float positioning column; the first float is cylindrical as a whole, and the middle of the first float is formed with a The through hole where the float positioning column is slidingly connected, the upper end of the first float is located on the outer periphery of the through hole to form an annular oil inlet, and the lower end of the first float is integrally connected with an oil outlet port, and the oil outlet port is connected to the oil inlet connected; the middle part of the side wall of the first tank body is connected with an oil outlet joint, and the oil outlet joint and the oil outlet interface are connected by a hose; An oil storage tank is hung on the outer wall of the first tank below the oil outlet port; The upper end of the second tank body is lower than the upper end of the first tank body, a secondary water inlet pipe is installed on the side wall adjacent to the second tank body, and the lower end of the secondary water inlet pipe extends to the first tank body At the bottom, the water outlet at the upper end of the secondary water inlet pipe is located above the second tank body, and the inner wall of the second tank is located below the water outlet of the secondary water inlet pipe and is equipped with a water guide plate that is high on the outside and low on the inside; A magnetic roller is installed in rotation in the second tank, and the magnetic roller includes a cylindrical magnetic roller body and two end covers connected to both ends of the magnetic roller body; a plurality of magnetic rollers are formed on the magnetic roller. The magnetic rod cavities arranged in the axial direction of the roller body, each magnetic rod cavities are equidistantly arranged along the circumferential direction of the magnetic roller main body; The radial ends are semicircular; a cylindrical magnetic rod is installed in the magnetic rod cavity, and the magnetic field direction of the magnetic rod is along the diameter direction of the magnetic rod; A rotating shaft is fixedly installed between the two opposite side walls of the second trough, and a connecting plate arranged radially along the magnetic roller is connected to the rotating shaft. Two connecting pieces are connected at both ends of the connecting plate, and the two A guide lug for guiding the magnetic rod to move toward the rotating shaft is formed on the opposite end surface of the connecting piece; The wall surface of the guide bump facing the direction of the rotating shaft is a guide surface, and the guide surface is an arc-shaped surface with a high middle and low sides; The main body of the magnetic roller is integrally formed of ceramic material, and the outer cover of the magnetic roller is provided with a stainless steel sleeve; A plurality of driven magnets distributed in a circular array are installed on the outer wall of one of the end covers, and a water wheel for driving the magnetic roller is installed on the outer wall of the second tank close to the driven magnets. mechanism; The water wheel mechanism includes a water wheel housing integrally connected to the outer side wall of the second tank body, a water wheel cover sealed and connected to the outer end of the water wheel housing, and a water wheel installed in the water wheel housing in rotation; the water wheel The outer wall of the wheel housing is integrally connected with a water inlet connecting pipe along the tangential direction of the water wheel housing. The outer wall of the second tank body is located at the center of the water wheel housing and formed with a rotating sleeve; the center of the outer wall of the water wheel cover is integrally connected with a There is a gap between the water outlet pipe and the rotating sleeve; the water wheel includes a circular water wheel base plate, a rotating ring integrally connected to the middle of one side of the water wheel base plate, and an integral connection to the water wheel base plate And the plurality of water wheel blades located on the outer periphery of the rotating ferrule, each water wheel blade is arranged in a circular array, and each water wheel blade is arranged radially along the water wheel base plate; the other side of the water wheel base plate is fixedly connected with each The driving magnet corresponding to the position of the driven magnet; the rotating collar is rotatably socketed on the rotating sleeve; The bottom of the second tank body is a semicircular arc groove bottom with the same center as the magnetic roller. The second tank body is located at the bottom of the arc groove and has an overflow channel on the side away from the first tank body. The lower end of the flow channel is located above the third tank body; A plurality of iron rods are installed equidistantly along the bottom of the arc-shaped groove on the second groove body, and each iron rod is arranged parallel to the rotating shaft; A first motor is fixedly installed on the side wall of the second tank away from the water wheel mechanism, and the output shaft of the motor is fixedly connected with a turret, and a semicircle is fixedly connected with the turret to make the Iron bar magnetized arc magnet; An iron chip discharge plate is installed on the side of the second tank body far away from the first tank body, and the iron chip discharge plate includes a discharge plate body arranged obliquely, which is integrally and symmetrically connected to the discharge plate body Two side guide plates on both sides, and a U-shaped hanging plate connected to the top of each side guide plate; the U-shaped hanging plate is hung between two opposite side walls of the second tank body, and the U-shaped hanging plate It is locked and fixed with the side wall of the second tank by screws; Water seepage holes are opened on the discharge plate body, the internal end of the discharge plate is low and the external end is high, the internal end of the discharge plate slides against the outer circumference of the magnetic roller, and the position of the guide protrusion is in line with the discharge plate. Corresponding to the position of the inner end of the plate body; An iron slag tank is hung on the outer wall of the second tank, and the outer end of the discharge plate is located at the upper end of the iron slag tank; The upper part of the third tank body away from the side of the first tank body is provided with a secondary filter tank insertion opening, and a magnetic filter box is inserted in the secondary filter tank insertion opening, and the magnetic filter box is in the shape of a rectangular tank body. The bottom surface of the magnetic filter box is formed with a downwardly protruding lower convex ring, and the magnetic strips arranged equidistantly are connected to the lower convex ring; The ring is lower than the lower end of the secondary filter tank insertion port; A filter cotton rack is installed in the third tank, and a filter cotton is installed above the filter cotton rack. The filter cotton rack includes a rectangular support plate and a plurality of support feet integrally connected to the lower end of the support plate. The support plate Uniformly formed with through holes; A liquid return pipe is connected to the side wall of the third tank, an oil return pump is connected to the liquid return pipe, and the liquid return pipe is connected to the horizontal nozzle through a hose; The third tank body is provided with a second float floating on the liquid surface, the upper end of the second float is formed with a ring-shaped oil inlet, and the lower end of the second float is connected with an oil outlet joint, and the oil outlet joint is connected to the The oil inlet is connected, and the oil outlet connection is connected to the inlet end of the liquid return pipe through a hose; the periphery of the second float is integrally connected with a plurality of outer extension bars arranged at equal distances; the second float The center position of the upper end is connected with a baffle pillar, the upper end of the baffle pillar is connected with an inner baffle, and the outer circumference of the lower end of the inner baffle is connected with an outer baffle through a plurality of connecting ribs, and the upper end surface of the inner baffle is middle height, A conical surface with a low outer circumference, the upper end surface of the outer shield is a conical surface with a high inner circumference and a low outer circumference; The side wall of the third tank body is located under the cotton filter rack and is connected with a liquid return pump, the liquid inlet end of the liquid return pump is connected with the third tank body through a pipeline, and the liquid outlet end of the liquid return pump is connected to the third tank body through a hose. The water inlet connecting pipe of the water wheel housing is connected, and the water outlet connecting pipe is connected with the flushing nozzle through a hose. 2. A milling machine structure with a cutting fluid purification system as claimed in claim 1, wherein the filter cotton includes two layers stacked from top to bottom and connected together, and the thickness of the upper layer is 10mm, the thickness of the lower layer is 15-20mm; Each layer of filter cotton is composed of a hydrophilic and lipophilic additive layer and a filter layer that wraps the additive layer; the hydrophilic and lipophilic additive layer is made of super amphiphilic material, and the filter layer is composed of a composite filter made of cotton; The super amphiphilic material is a nanoscale composite material, which contains a nanoscale space composed of regularly arranged hydrophilic polymer segments and lipophilic polymer segments; the composite material is a sparse porous structure, The pore size of the composite material in the upper and lower filter cottons is 45nm and 30nm successively; the composite filter cotton includes a filter cotton layer, and activated carbon particles are evenly distributed inside the filter cotton layer, and the top surface and the bottom surface of the filter cotton are both It is a thin layer of non-woven fabric; The filter cotton layer and the non-woven thin layer are made by ultrasonic pressing, and the compacted area of the pressing point accounts for 3% of the total area; The area is 5 square millimeters.