CN108247418B

CN108247418B - Milling machine

Info

Publication number: CN108247418B
Application number: CN201810109954.4A
Authority: CN
Inventors: 赵伟; 林小平
Original assignee: Cixi Runde Machinery Manufacturing Co ltd
Current assignee: Cixi Runde Machinery Manufacturing Co ltd
Priority date: 2016-11-17
Filing date: 2016-11-17
Publication date: 2020-08-21
Anticipated expiration: 2036-11-17
Also published as: CN106363457B; CN108296867B; CN108247418A; CN108296867A; CN106363457A

Abstract

The invention discloses a milling machine, which comprises a workbench arranged on a milling machine main body, a collecting tray fixedly connected below the workbench, a washing spray nozzle slidably arranged on the collecting tray, and a cutting fluid purifying device connected with the washing spray 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; a magnetic roller is rotatably arranged in the second groove body and comprises two symmetrically-arranged circular groove-shaped magnetic roller shells, a plurality of magnetic rod accommodating cavities are formed in the circumferential wall surfaces of the magnetic roller shells, and cylindrical magnetic rods are arranged in the magnetic rod accommodating cavities; a rotating shaft is arranged between two opposite side walls of the second groove body, and the middle of the rotating shaft is fixedly connected with an inner magnet used for attracting the magnetic rod to the middle direction of the magnetic roller through a connecting plate. The cutting fluid can be purified efficiently and energy-saving, so that the cutting fluid can be recycled for multiple times.

Description

Milling machine

Technical Field

The invention belongs to a mechanical processing machine tool structure, and particularly relates to a milling machine.

Background

In the milling machine working process, a large amount of scrap iron to be cut can be mixed in the cutting fluid, and the scrap iron in the cutting fluid needs to be purified because the cutting fluid is recycled. With the improvement of machining precision, high-speed grinding and powerful grinding technologies are rapidly developed, and besides reasonable grinding parameters are selected, the circulation quality of grinding fluid must be improved. The existing cutting fluid purifying devices are mainly filtering purifying devices which remove impurities by means of filtering media, such as filtering net type, wire gap type, sheet type and paper belt type filtering machines. In order to avoid the accumulation of scrap iron, the filtering type purifying device needs to be cleaned regularly, is very troublesome to use, has poor purifying effect on cutting fluid, and can cause adverse effect on the normal use of a machine tool.

Chinese patent No. CN203264855U discloses a machine tool cutting fluid purifying device, which includes a frame, a magnetic roller and a rubber roller are arranged on the frame, the magnetic roller and the rubber roller are arranged oppositely, the magnetic roller is connected with a driving motor through a transmission mechanism, a scraper is further arranged on one side of the magnetic roller, and the scraper is attached to the magnetic roller. When dirty cutting fluid flows through a magnetic roller adsorption area which rotates slowly, magnetic solid particles are magnetized under the action of a magnetic field, adsorbed to the surface of the magnetic roller and taken out of a cutting fluid flowing area, extruded and dehydrated by a rubber roller, and scrap iron on the magnetic roller is scraped by a scraper attached to the magnetic roller. The machine tool cutting fluid purifying device can realize automatic separation of ferromagnetic substances, keep the cutting fluid clean, improve the processing performance and the service life of a cutter, and reduce environmental pollution; the machine tool cutting fluid purifying device also has the advantages of simple structure and convenient use.

The magnetic roller of above-mentioned patent includes a magnet portion and a rubber portion, magnet portion follows 270 distributions of magnetic roller circumference, rubber portion follows 90 distributions of magnetic roller circumference to iron fillings separate with the magnetic roller, but such structure, when the relative magnetic roller of scraper blade was scraped, the scraper blade need promote iron fillings and can make iron fillings and magnetic roller throw off after reaching the rubber portion by magnet portion, and at this in-process, magnetic force between iron fillings and the magnet portion produced great resistance to the scraper blade, and the required moment of motor and consumption are great relatively like this, and power consumption is also more. On the other hand, when the cutting fluid flows through, the cutting fluid is not adsorbed if the cutting fluid is just in contact with the rubber portion, and thus it is difficult to ensure a good cleaning effect of the cutting fluid.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the milling machine structure which can recycle the cutting fluid, is energy-saving and environment-friendly is provided.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: a milling machine comprises a workbench arranged on a milling machine body, a collecting tray fixedly connected below the workbench, two horizontal spray heads fixedly arranged at one end of the collecting tray, a washing spray head slidably arranged on the collecting tray, and a cutting fluid purifying device connected with the horizontal spray heads and the washing spray head through pipelines;

a channel for containing cutting fluid is formed between the inner wall of the collecting disc and the periphery of the workbench, and a collecting box is connected below one top point of the collecting disc;

a nozzle rail is arranged on the outer wall of one long edge of the collecting disc, a nozzle sliding seat is connected to the nozzle rail in a sliding mode, the washing nozzle is arranged on the nozzle sliding seat, and a locking screw used for fixing the nozzle sliding seat on the nozzle rail is further connected to the nozzle sliding seat;

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 upper end of the first tank body is provided with an opening, one side of the upper end of the first tank body, which is far away from the second tank body, is integrally connected with a water inlet joint mounting plate, a water inlet joint is mounted on the water inlet joint mounting plate, and the water inlet joint is connected with the collection box through a pipeline;

a first filter tank is inserted above the first tank body, a lower convex part inserted with the upper end of the first tank body is integrally formed at the lower end of the first filter tank, a water inlet pipe is connected to the position, close to a vertex, of the lower end of the lower convex part, a filter screen is installed in the first filter tank, a step part is formed above the lower convex part in the first filter tank, and a space is reserved between the step part and the filter screen; the water outlet of the water inlet joint is positioned above the first filter tank;

the bottom of the first tank body is fixedly connected with a longitudinally arranged floater positioning column, and a first floater is slidably sleeved on the floater positioning column; the first floater is integrally cylindrical, a through hole in sliding connection with the floater positioning column is formed in the middle of the first floater, an annular oil inlet is formed in the position, located on the periphery of the through hole, of the upper end of the first floater, an oil outlet interface is integrally connected to the lower end of the first floater, and the oil outlet interface is communicated with the oil inlet; the middle part of the side wall of the first groove body is connected with an oil outlet joint, and the oil outlet joint is connected with an oil outlet interface through a hose;

an oil storage tank is hung on the outer wall of the first tank body and positioned 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 second-stage water inlet pipe is mounted on the side wall of the first tank body adjacent to the second tank body, the lower end of the second-stage water inlet pipe extends to the bottom of the first tank body, a water outlet at the upper end of the second-stage water inlet pipe is positioned above the second tank body, and a water guide plate with a high outer part and a low inner part is mounted on the inner wall of the second tank body below the water outlet of;

the magnetic roller is rotatably installed in the second groove body and comprises two symmetrically arranged and hermetically connected circular groove-shaped magnetic roller shells, a plurality of magnetic rod containing cavities are formed on the circumferential wall surface of each magnetic roller shell at equal intervals, the end surfaces of the magnetic rod containing cavities are strip-shaped along the radial direction of the magnetic roller, the magnetic rod containing cavities are semicircular along the inner ends and the outer ends of the magnetic roller in the radial direction, cylindrical magnetic rods are installed in the magnetic rod containing cavities, and the magnetic field direction of the magnetic rods is along the diameter direction of the magnetic rods;

a rotating shaft is fixedly arranged between two opposite side walls of the second groove body, and the middle of the rotating shaft is fixedly connected with an inner magnet used for attracting the magnetic rod to the middle direction of the magnetic roller through a connecting plate;

the magnetic roller shell is integrally formed by ceramic materials, and a stainless steel sleeve is sleeved outside the circumferential wall surface of the magnetic roller;

the outer side wall of one magnetic roller shell is provided with a plurality of driven magnets distributed in a circumferential array, the outer side wall of the second groove body close to the driven magnets is fixedly connected with a second motor through a motor support, the output shaft of the second motor is fixedly connected with a turntable, and the turntable is fixedly provided with driving magnets corresponding to the positions of the driven magnets;

the bottom of the second groove body is a semicircular arc groove bottom concentric with the magnetic roller, an overflow channel is arranged at one side of the arc groove bottom, which is far away from the first groove body, in the second groove body, and the lower end of the overflow channel is positioned above the third groove body;

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

a first motor is fixedly installed on the side wall, far away from the second motor, of the second groove body, an output shaft of the motor is fixedly connected with a rotating frame, and a semicircular arc-shaped magnet used for magnetizing the iron rod is fixedly connected to the rotating frame;

an iron scrap discharging plate is arranged on one side, far away from the first groove body, of the upper end of the second groove body, and comprises an obliquely arranged discharging plate body, two side guide plates integrally and symmetrically connected to two sides of the discharging plate body, and a U-shaped hanging plate connected to the upper end of each side guide plate; the U-shaped hanging plate is hung between two opposite side walls of the second groove body, and the U-shaped hanging plate and the side walls of the second groove body are locked and fixed through screws;

the discharging plate body is provided with water seepage holes, the inner end of the discharging plate body is lower than the outer end and is higher than the outer end, the inner end of the discharging plate body is in sliding contact with the periphery of the magnetic roller, and the position of the inner magnet corresponds to the position of the inner end of the discharging plate body;

an iron slag groove is hung on the outer wall of the second groove body, and the outer end of the discharging plate body is positioned at the upper end of the iron slag groove;

a second-stage filter tank insertion opening is formed in the side face, far away from the first tank body, of the upper portion of the third tank body, a magnetic filter box is inserted into the second-stage filter tank insertion opening, the magnetic filter box is in a rectangular tank body shape, a downward convex lower convex ring is formed on the bottom face of the magnetic filter box, and magnetic strips which are distributed at equal intervals are connected to the lower convex ring; after the magnetic filter box is inserted in place from the secondary filter slot insertion opening, the lower convex ring is lower than the lower end of the secondary filter slot insertion opening;

a filter cotton frame is arranged in the third tank body, filter cotton is arranged above the filter cotton frame, the filter cotton frame comprises a rectangular supporting plate and a plurality of supporting legs integrally connected to the lower end of the supporting plate, and through holes are uniformly formed in the supporting plate;

a liquid return pipe is connected between the third tank body and the side wall of the first tank body, a one-way valve and an oil return pump are connected to a pipeline of the liquid return pipe, and the one-way valve is communicated in one way from the third tank body to the first tank body;

a second floater floating on the liquid level is arranged in the third tank body, an annular oil inlet is formed in the upper end of the second floater, an oil outlet connecting pipe is connected to the lower end of the second floater, the oil outlet connecting pipe is communicated 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 floater is integrally connected with a plurality of external extending strips which are arranged at equal intervals; a shield strut is connected to the center of the upper end of the second floater, an inner shield is connected to the upper end of the shield strut, the outer periphery of the lower end of the inner shield is connected with an outer shield through a plurality of connecting ribs, the upper end surface of the inner shield is a conical surface with a high middle part and a low outer periphery, and the upper end surface of the outer shield is a conical surface with a high inner periphery and a low outer periphery;

an oil return pipe connected with the outlet end of the liquid return pipe is arranged in the first groove body, and the outlet end of the oil return pipe is higher than the upper end of the second groove body and lower than the upper end of the first groove body;

and the side wall of the third tank body is positioned below the cotton filter frame and is connected with a liquid return pump, the liquid inlet end of the liquid return pump is communicated with the third tank body through a pipeline, the liquid outlet end of the liquid return pump is connected with a flushing nozzle and a horizontal nozzle through hoses, and the hose pipelines connected with the flushing nozzle and the horizontal nozzle are respectively connected with an electromagnetic valve.

As a preferable scheme: the filter cotton comprises three layers which are stacked from top to bottom and are connected into a whole, wherein the thickness of the uppermost layer is 5mm, the thickness of the middle layer is 10mm, and the thickness of the lowermost layer is 15-20 mm;

each layer of filter cotton consists of a hydrophilic oleophylic auxiliary agent layer and a filter layer wrapping the auxiliary agent layer; the hydrophilic and oleophylic auxiliary agent layer is made of super-amphiphilic materials, and the filter layer is made of composite filter cotton;

the super-amphiphilic material is a nano-scale composite material, and the composite material contains a nano-scale space formed by regularly arranged hydrophilic polymer chain segments and lipophilic polymer chain segments; the composite material is of a sparse porous structure, and the sizes of the holes of the composite material in each layer of filter cotton from top to bottom are 45nm, 40nm and 30nm in sequence; the composite filter cotton comprises a filter cotton layer, wherein activated carbon particles are uniformly distributed in the filter cotton layer, and the top surface and the bottom surface of the filter cotton are non-woven thin layers;

the filter cotton layer and the non-woven fabric thin layer are manufactured in an ultrasonic wave pressing mode, and the pressing area of the pressing points accounts for 3% of the total area; the pressure points are in a round point shape or a polygonal shape, and the area of each pressure point is 5 square millimeters.

Compared with the prior art, the invention has the beneficial effects that: the milling machine is provided with the efficient and energy-saving cutting fluid purification device, so that the milling machine is beneficial to recycling the cutting fluid for multiple times, and is energy-saving and environment-friendly.

Specifically, the method comprises the following steps:

the aperture of the filter screen is 0.3-1.0mm, the filter screen is used for preliminarily filtering large-particle scrap iron, the cutting fluid after preliminary filtering is discharged into the first groove body through the water inlet pipe, and the outlet end of the water inlet pipe is positioned below the liquid level of the first groove body, so that an upper floating oil layer in the first groove body cannot be dispersed.

The floater can only be in the vertical direction by arranging the floater positioning column

The upper part of the oil inlet is moved upwards to ensure that the oil inlet is always kept in a horizontal state, only the upper floating oil layer can enter the first floater through the oil inlet and is discharged into the oil storage tank through the hose, when the thickness of the floating oil layer is smaller, the oil inlet of the first floater is positioned above the liquid level, and cutting fluid cannot flow in from the oil inlet. The first floater adjusts the density of the material, so that the oil inlet can be just immersed below the liquid level when the oil layer is thick, the lower part of the first floater is positioned in the cutting fluid when the oil layer is thin, and the oil inlet is positioned above the liquid level.

After entering the second groove body, the cutting fluid flows into the space between the bottom of the arc groove and the magnetic roller, each iron rod is magnetized by the arc magnet, and part of scrap iron in the cutting fluid is adsorbed on the upper surface of the bottom of the arc groove; magnetizing the stainless steel sleeve by the magnetic bar, and adsorbing part of scrap iron in the cutting fluid on the outer surface of the stainless steel sleeve; first motor rotates half a circle at every interval, make arc magnet keep away from the iron bar, the iron fillings of gathering at the circular arc tank bottom are adsorbed on the stainless steel bushing surface of magnetic roller, the magnetic roller is under second motor drive, and cooperation drive magnet, driven magnet's drive, make the magnetic roller rotate, iron fillings on the stainless steel bushing surface are carried second cell body top thereupon, when iron fillings remove the interior magnet position, the magnetic bar receives the attraction of interior magnet and holds the chamber and move toward magnetic roller center direction along the magnetic bar, the magnetic force that the stainless steel cover received like this in this position reduces, the iron fillings of this position receive iron fillings to go out blockking of flitch like this, push away on the flitch and fall into the iron slag groove from the play flitch gradually by the iron fillings at rear promptly. Because the bar magnet design is mobilizable form, cooperation internal magnet for iron fillings can be pushed to iron fillings smoothly on the play flitch, can not cause the resistance because of the effect of magnetic force to the removal of iron fillings, also reduced the wearing and tearing of stainless steel cover, reduced the required drive power of second motor.

Drawings

Fig. 1 and 2 are schematic structural diagrams of the present invention.

Fig. 3 and 4 are schematic structural views of the cutting fluid purification apparatus.

Fig. 5 is an exploded structural view of the cutting fluid purification apparatus.

Fig. 6 and 7 are schematic sectional structural views of the case.

Fig. 8 is a schematic view of the mounting structure of the first motor.

Fig. 9 is a schematic view of the mounting structure of the second motor.

Fig. 10 is a schematic structural view of the first filter cell.

Fig. 11 is a schematic structural view of the first float.

Fig. 12 is a schematic view of the structure of the magnet roller.

Fig. 13 is an exploded structural view of the magnet roller.

Fig. 14 is a schematic structural view of the magnetic roller shell.

FIG. 15 is a schematic view of the structure of the scrap iron discharging plate.

Fig. 16 is a schematic view of the structure of the second float.

Fig. 17 is a schematic view of the structure of the magnetic filter cassette portion.

Fig. 18 is a schematic view of the construction of the filter and the filter holder portion.

FIG. 19 is a schematic view showing the structure of a cutting fluid purification apparatus according to example 2.

Fig. 20 is a schematic structural view of the liquid return pump.

FIG. 21 is a schematic sectional view of the liquid returning pump.

FIG. 22 is an exploded view of the return pump.

1. A milling machine main body; 11. a work table; 12. a collection tray; 121. a channel; 13. a horizontal spray head; 14. washing the spray head; 141. a nozzle slide base; 142. locking the screw; 15. a collection box; 16. a nozzle rail; 2. a cutting fluid purification device; 20. a box body; 20a, a first trough body; 20 b; a second tank body; 20c, a third trough body; 201. a water inlet joint; 202. an oil outlet joint; 203. a float positioning post; 204. a second-stage water inlet pipe; 205. a water inlet joint mounting plate; 206. a water guide plate; 207. the bottom of the arc groove; 2071. an iron rod; 208. an overflow channel; 209. a second-stage filter tank insertion opening; 200. an oil return pipe; 21. a magnetic roller; 211. a magnetic roll shell; 2111. a magnetic rod cavity; 212. a driven magnet; 213. a rotating shaft; 214. an inner magnet; 215. a magnetic bar; 22. the scrap iron discharging plate; 221. a discharging plate body; 222. a side guide plate; 223. a U-shaped hanging plate; 23. a magnetic filter box; 231. a lower convex ring; 232. a magnetic strip; 24. an oil return pump; 25. a one-way valve;

26. returning to the liquid pump; 260. a gas storage tank; 261. a pump body; 2611. an air tube; 2612. a pump chamber; 2613. a water outlet joint; 2614. a rotor cavity; 2615. a rotor fixing shaft; 262. a rotor assembly; 2621. a magnet rotor; 2622. a rotor substrate; 2623. a blade; 2624. a vent lumen; 2625. air holes; 2626. a convex ring; 263. a pump cover;

27. a first motor; 271. a rotating frame; 272. an arc-shaped magnet; 28. a second motor; 281. a motor bracket; 282. a turntable; 2821. a drive magnet; 29. filtering cotton; 291. a cotton filtering frame; 2a, an oil storage tank; 2b, a first filter tank; 2b01, lower projection; 2b02, water inlet pipe; 2b1, filter screen; 2c, an iron slag groove; 2d, a first float; 2d1, vias; 2d2, oil inlet; 2d3, oil outlet interface; 2f, a second float; 2f1, an outer extension strip; 2f2 and an oil inlet; 2f3, shield posts; 2f4, inner shield; 2f5, outer shield; 2f6 and an oil outlet connecting pipe.

Detailed Description

Example 1

Referring to fig. 1 to 18, the milling machine of the present embodiment includes a table 11 mounted on a milling machine body 1, a collecting plate 12 fixedly connected below the table, two horizontal nozzles 13 fixedly mounted at one end of the collecting plate, a washing nozzle 14 slidably mounted on the collecting plate, and a cutting fluid purifying device 2 connected with the horizontal nozzles and the washing nozzle through pipes.

The milling machine body is a conventional milling machine structure and will not be described herein.

A channel 121 for containing cutting fluid is formed between the inner wall of the collecting disc and the periphery of the workbench, and a collecting box 15 is connected below one top point of the collecting disc; a small amount of cutting fluid is sprayed out of the horizontal spray head to flush the cutting fluid with scrap iron and oil stains in the channel into the collecting box.

The outer wall on a long side of the collecting tray is provided with a spray head rail 16, a spray head sliding seat 141 is connected to the spray head rail in a sliding mode, the washing spray head is arranged on the spray head sliding seat, and the spray head sliding seat is further connected with a locking screw 142 used for fixing the spray head sliding seat on the spray head rail. The position of the spray head sliding seat can be adjusted according to the specific condition of the processed workpiece, so that the washing angle of the washing spray head can be adjusted.

Cutting fluid purifier is including the box 20 of plastics material, box one side is first cell body 20a, it is second cell body 20b and third cell body 20c to lie in first cell body one side on the box, and the third cell body lies in second cell body below.

First cell body upper end opening, and one side an organic whole that second cell body was kept away from to first cell body upper end is connected with water supply connector mounting panel 205, install water supply connector 201 on the water supply connector mounting panel, water supply connector with it passes through the pipe connection to collect the box.

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

The bottom of the first tank body is fixedly connected with a longitudinally arranged floater positioning column 203, and a first floater 2d is slidably sleeved on the floater positioning column; the first floater is integrally cylindrical, a through hole 2d1 in sliding connection with the floater positioning column is formed in the middle of the first floater, an annular oil inlet 2d2 is formed in the position, located on the periphery of the through hole, of the upper end of the first floater, the lower end of the first floater is integrally connected with an oil outlet port 2d3, and the oil outlet port is communicated with the oil inlet; the middle part of the side wall of the first groove body is connected with an oil outlet joint 202, and the oil outlet joint is connected with an oil outlet interface through a hose.

The floater positioning column is arranged to enable the floater to move only in the vertical direction, the oil inlet is guaranteed to be always kept in a horizontal state, only the upper floating oil layer can enter the first floater through the oil inlet and is discharged into the oil storage tank through the hose, when the thickness of the floating oil layer is small, the oil inlet of the first floater is located above the liquid level, and cutting fluid cannot flow in from the oil inlet. The first floater adjusts the density of the material, so that the oil inlet can be just immersed below the liquid level when the oil layer is thick, the lower part of the first floater is positioned in the cutting fluid when the oil layer is thin, and the oil inlet is positioned above the liquid level.

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

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

Second cell body upper end is less than first cell body upper end, install second grade inlet tube 204 on the adjacent lateral wall of first cell body and second cell body, second grade inlet tube lower extreme extends to first cell body bottom, and the delivery port of second grade inlet tube upper end is located second cell body top, second cell body inner wall is located the low water deflector 206 in the outer height is installed to the below of second grade inlet tube delivery port.

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

Magnetic roll 21 is installed in the rotation of second cell body, and magnetic roll upper portion surpasss second cell body upper end, the magnetic roll is including two symmetry settings and sealing connection's circular slot shape magnetic roll casing 211, and equidistance ground shaping has a plurality of bar magnets to hold chamber 2111 on the circumference wall surface of magnetic roll casing, and each bar magnet holds chamber terminal surface and radially is the strip along the magnetic roll, and the bar magnet holds the chamber and radially inner and outer end semicircular along the magnetic roll, and the bar magnet holds the intracavity and installs cylindric bar magnet 215, bar magnet magnetic field direction is along the diametric of bar magnet.

A rotating shaft 213 is fixedly installed between two opposite side walls of the second groove body, and the middle of the rotating shaft is fixedly connected with an inner magnet 214 for attracting the magnetic rod to the middle direction of the magnetic roller through a connecting plate;

the magnetic roller shell is made of ceramic materials and is integrally formed, and a stainless steel sleeve (not shown in the figure) is sleeved outside the circumferential wall surface of the magnetic roller.

A plurality of driven magnets 212 distributed in a circumferential array are mounted on the outer side wall of one of the magnetic roller shells, a second motor 28 is fixedly connected to the outer side wall of the second tank body close to the driven magnets through a motor support 281, a rotary table 282 is fixedly connected to an output shaft of the second motor, and driving magnets 2821 corresponding to the positions of the driven magnets are fixedly mounted on the rotary table;

the bottom of the second groove body is a semicircular arc groove bottom 207 concentric with the magnetic roller, an overflow channel 208 is arranged at one side of the arc groove bottom far away from the first groove body in the second groove body, and the lower end of the overflow channel is positioned above the third groove body.

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

The side wall of the second groove body far away from the second motor is fixedly provided with a first motor 27, the output shaft of the motor is fixedly connected with a rotating frame 271, and the rotating frame is fixedly connected with a semicircular arc-shaped magnet 272 used for magnetizing the iron bar.

An iron scrap discharging plate 22 is mounted on one side, far away from the first tank body, of the upper end of the second tank body, and comprises a discharging plate body 221 which is arranged obliquely, two side guide plates 222 which are integrally and symmetrically connected to two sides of the discharging plate body, and a U-shaped hanging plate 223 connected to the upper end of each side guide plate; the U-shaped hanging plate is hung between two opposite side walls of the second groove body, and the U-shaped hanging plate and the side walls of the second groove body are locked and fixed through screws.

The discharging plate is provided with water seepage holes, the diameter of each water seepage hole is 0.1-0.2mm, the inner end of the discharging plate is low, the outer end of the discharging plate is high, the inner end of the discharging plate is in sliding contact with the periphery of the magnetic roller, and the position of the inner magnet corresponds to the position of the inner end of the discharging plate.

And an iron slag groove 2c is hung on the outer wall of the second groove body, and the outer end of the discharge plate body is positioned at the upper end of the iron slag groove.

A secondary filter tank insertion opening 209 is formed in the side face, far away from the first tank body, of the upper portion of the third tank body, a magnetic filter box 23 is inserted into the secondary filter tank insertion opening, the magnetic filter box is in a rectangular tank body shape, a downward convex lower convex ring 231 is formed in the bottom face of the magnetic filter box, and magnetic strips 232 which are distributed at equal intervals are connected to the lower convex ring; after the magnetic filter box is inserted in place from the secondary filter slot inserting opening, the lower convex ring is lower than the lower end of the secondary filter slot inserting opening.

The magnetic filter box plays a fine filtering function, and because the lower convex ring is connected with a plurality of magnetic stripes, gaps are formed between the magnetic stripes, the flow rate of cutting fluid passing through the magnetic filter box is slow, and residual small iron chips in the cutting fluid are adsorbed on the magnetic stripes. After the magnetic filter box is used for a period of time, the magnetic filter box is taken down, and scrap iron on the magnetic filter box is cleaned and then is loaded into the box body again.

Install filter cotton frame 291 in the third cell body, filter cotton 29 is installed to filter cotton frame top, filter cotton frame is including the backup pad of rectangle and a plurality of supporting legss of integrated connection at the backup pad lower extreme, even shaping has the through-hole in the backup pad.

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

A liquid return pipe is connected between the third groove body and the side wall of the first groove body, a one-way valve 25 and an oil return pump 24 are connected on a liquid return pipe, and the one-way valve is in one-way conduction from the third groove body to the first groove body.

A second floater 2f floating on the liquid level is arranged in the third tank body, an annular oil inlet 2f2 is formed in the upper end of the second floater, an oil outlet connecting pipe 2f6 is connected to the lower end of the second floater, the oil outlet connecting pipe is communicated with the oil inlet, and the oil outlet connecting pipe is connected with the inlet end of a liquid return pipe through a hose; a plurality of outer extending strips 2f1 which are arranged at equal intervals are integrally connected to the periphery of the second floater; second float upper end central point puts and is connected with fender cover pillar 2f3, fender cover pillar upper end is connected with interior fender cover 2f4, interior fender cover lower extreme periphery is connected with an outer fender cover 2f5 through a plurality of splice bars, and the up end of interior fender cover is the conical surface that middle height, periphery are low, the up end of outer fender cover is the conical surface that interior high, periphery are low.

An oil return pipe 200 connected with the outlet end of the liquid return pipe is arranged in the first groove body, and the outlet end of the oil return pipe is higher than the upper end of the second groove body and lower than the upper end of the first groove body.

The oil recovery device is characterized in that a certain amount of oil stain is still doped in the process that the cutting fluid enters the second tank body from the first tank body, the flow rate of the cutting fluid is very low when the cutting fluid passes through the magnetic filter box, and the gathering of oil stain particles is facilitated, so that a layer of oil stain is gathered on the upper portion of the liquid level in the third tank body, the oil return pump is matched with the second floater to pump the cutting fluid with the oil stain on the upper portion of the third tank body back to the first filter tank again, an oil layer with larger thickness is gathered on the upper portion of the first tank body, and the oil layer is finally.

And the side wall of the third tank body is positioned below the cotton filter frame and is connected with a liquid return pump 26, the liquid inlet end of the liquid return pump is communicated with the third tank body through a pipeline, the liquid outlet end of the liquid return pump is connected with a flushing nozzle and a horizontal nozzle through hoses, and the hose pipelines for connecting the flushing nozzle and the horizontal nozzle are respectively connected with an electromagnetic valve.

Most of oil stains and scrap iron are filtered out of the cutting fluid filtered by the filter cotton, and the cutting fluid can be reused.

The electromagnetic valve, the oil return pump, the liquid return pump, the first motor and the second motor are respectively electrically connected with the controller, and the controller sets the action of each execution component according to the requirement; the controller is connected with a control switch and is used for controlling the corresponding electromagnetic valve to be opened in the working process of the milling machine so that the horizontal spray head or the washing spray head sprays cutting fluid.

The controller can use a PLC controller or a single chip microcomputer, and the controller controls the work of a motor, an electromagnetic valve, a pump and the like, which is conventional technology in the field and is not described again.

Example 2

With reference to fig. 19 to 22, the present embodiment further improves the following on the basis of embodiment 1:

the liquid return pump comprises 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 cavity 2612, a cylindrical rotor cavity 2614 communicated with the pump cavity is formed in the pump body, the inner diameter of the rotor cavity is smaller than that of the pump cavity, and the bottom of the rotor cavity is fixedly connected with a rotor fixing shaft 2615 which is coaxial with the rotor cavity.

A water outlet joint 2613 is formed on the side surface 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 arranged in a space between the pump body and the pump cover; the rotor assembly comprises a magnet rotor 2621, a circular rotor base plate 2622 fixedly connected to one end of the magnet rotor, and a plurality of blades 2623 integrally connected to one end of the rotor base plate different from the magnet rotor, wherein each blade is connected to the rotor base plate in a circumferential array mode; a vent cavity 2624 is formed in the blade, the opening of the vent cavity is positioned at one side of the rotor substrate, and air holes 2625 are uniformly formed on the blade and communicated with the vent cavity; a convex ring 2626 which is abutted against the end face of the pump body is formed on the end face of one end of the rotor substrate facing the magnet rotor, and a rotating hole which is rotationally connected with the rotor fixed shaft is formed on the rotor component; the rotor magnet pump is characterized in that the magnet rotor is located in the rotor cavity, the rotor substrate and the blades are located in the pump cavity, a gap of 2-3mm is reserved between the inner wall of the rotor cavity and the outer wall of the magnet rotor, and a stator coil for driving the magnet to rotate is installed in the pump body.

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

The cutting fluid is deteriorated and smelled due to the bacteria mixed in the use process of the cutting fluid, so the bacteria in the cutting fluid are killed by the ozone.

Ozone gas enters the rotor cavity from the gas pipe, then enters the pump cavity through the vent cavity and then the air holes, and is mixed with the cutting fluid in the pump cavity. The blades rotate ceaselessly, so that the ozone gas is fully contacted with the cutting fluid, and the sterilizing effect is good. Namely, the liquid return pump not only plays the role of a pump, but also plays the role of stirring and mixing. An air pipe between the air storage tank and the liquid return pump is also connected with an electromagnetic valve, and the electromagnetic valve is opened when the liquid return pump works.

In addition, ozone gas is uniformly mixed in the cutting fluid and is sprayed out from the horizontal spray head or the flushing spray head together with the cutting fluid, so that the flushing force is enhanced, the output quantity of the cutting fluid is less in the same time, the use quantity of the cutting fluid is reduced, and the energy is saved.

Example 3

This example is further modified from example 1 or 2 as follows:

the filter cotton comprises three layers which are stacked from top to bottom and are connected into a whole, wherein the thickness of the uppermost layer is 5mm, the thickness of the middle layer is 10mm, and the thickness of the lowermost layer is 15-20 mm;

The filter cotton is used for adsorbing a small amount of oil stains remained in the cutting fluid, and the filter cotton is made of a composite material with decreasing hole sizes from top to bottom, so that the adsorption capacity of the oil stains with small particle sizes is obviously improved, and the service life of the filter cotton is relatively long.

The cutting fluid comprises the following components in percentage by weight:

31-40 parts of polyvinyl alcohol; 16-20 parts of alkenyl succinic acid; 10-12 parts of triethanolamine; 8-10 parts of disodium ethylene diamine tetraacetate; 6-8 parts of isopropanol; 3-5 of borax; 1-2 parts of emulsified silicone oil; 6-8 parts of benzoic acid.

Claims

1. A milling machine comprises a workbench arranged on a milling machine body, a collecting tray fixedly connected below the workbench, two horizontal spray heads fixedly arranged at one end of the collecting tray, a washing spray head slidably arranged on the collecting tray, and a cutting fluid purifying device connected with the horizontal spray heads and the washing spray head through pipelines; the method is characterized in that:

a first motor is fixedly installed on the side wall, far away from the second motor, of the second groove body, an output shaft of the first motor is fixedly connected with a rotating frame, and a semicircular arc-shaped magnet used for magnetizing the iron bar is fixedly connected to the rotating frame;

a liquid return pump is connected to the side wall of the third tank body below the cotton filter frame, the liquid inlet end of the liquid return pump is communicated with the third tank body through a pipeline, the liquid outlet end of the liquid return pump is connected with a flushing nozzle and a horizontal nozzle through hoses, and solenoid valves are connected to hose pipelines connected with the flushing nozzle and the horizontal nozzle respectively;

the filter cotton layer and the non-woven fabric thin layer are manufactured in an ultrasonic wave pressing mode, and the pressing area of the pressing points accounts for 3% of the total area; the pressure points are in a round point shape or a polygonal shape, and the area of each pressure point is 5 square millimeters;

the cutting fluid comprises the following components in percentage by weight:

31-40 parts of polyvinyl alcohol; 16-20 parts of alkenyl succinic acid; 10-12 parts of triethanolamine; 8-10 parts of disodium ethylene diamine tetraacetate; 6-8 parts of isopropanol; 3-5 of borax; 1-2 parts of emulsified silicone oil; 6-8 parts of benzoic acid;

the sum of the weight percentages of the above components is 100.