CN111168460B

CN111168460B - Numerical control machine tool

Info

Publication number: CN111168460B
Application number: CN202010060462.8A
Authority: CN
Inventors: 赵柯泽; 赵帅; 郭琴
Original assignee: Zhejiang Hengda Cnc Equipment Co ltd
Current assignee: Zhejiang Hengda Cnc Equipment Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2021-01-12
Anticipated expiration: 2040-01-19
Also published as: CN111168460A

Abstract

The invention relates to a numerical control machine tool, which relates to the technical field of machine tools and comprises a rack, wherein a workbench and a cooling pipe are arranged on the rack, a hydraulic station is arranged in the rack, a liquid receiving hopper is arranged on the workbench, a rotating sleeve is rotatably arranged on the rack below the workbench, six liquid receiving discs are uniformly arranged on the rotating sleeve at intervals along the circumferential direction of the rotating sleeve, and when any one liquid receiving disc is in a horizontal position with an upward opening, the lower opening of the liquid receiving hopper is positioned at the center line of the liquid receiving disc and is deviated to one side away from the rotating sleeve; the lower surface of the liquid receiving disc is provided with an electromagnet, a collecting hopper is arranged on the rack below the liquid receiving disc, the vertical projections of the liquid receiving disc are all in the collecting hopper, and the bottom of the collecting hopper is connected with a liquid discharge pipe leading to the outside of the rack. The scrap iron is attracted by the electromagnet, and the scrap iron can be attracted without considering the size of the scrap iron, so that the content of the scrap iron in the cutting fluid falling into the collecting hopper is greatly reduced, the influence on a workpiece during recycling can be reduced, and the processing quality is improved.

Description

Numerical control machine tool

Technical Field

The invention relates to the technical field of machine tools, in particular to a numerical control machine tool.

Background

The machine tool has wide processing technology performance, can process linear cylinders, oblique line cylinders, circular arcs and various complex workpieces such as threads, grooves, worms and the like, has various compensation functions of linear interpolation and circular arc interpolation, and plays a good economic effect in the batch production of complex parts.

Chinese Utility model with publication number CN209717151U discloses a novel numerical control machine tool, which comprises a base, a control panel, a machine cover, a glass cover, a cutting fluid recovery tank, a cutting fluid pump, a cutting fluid storage tank, a cutting discharge port, an arc baffle and a metal filter screen, a control panel is arranged on the left side of the top of the base, a hood is arranged on the right side of the top of the base, a glass hood is arranged at the front end of the hood, the bottom of the right side of the base is provided with a cutting fluid recovery tank, the rear end of the top of the base is integrally formed with an arc baffle, and the front end of the top of the base is provided with a metal filter screen, the bottom of the metal filter screen is connected with the top of the cutting fluid recovery tank, the bottom of the right side of the hood is provided with a cutting fluid pump, and the cutting fluid storage tank is installed at the top of the cutting fluid pump, the cutting fluid pump can convey the cutting fluid in the cutting fluid recovery tank to the cutting fluid storage tank, and the cutting discharge port is installed at the front end of the bottom of the hood through a rotating shaft. Arc baffle through the base top is convenient for with cutting fluid to metal filters drainage to in the jar is deposited to cutting fluid through the pump sending, but reuse's while can also be to the cutting fluid fast replenishment of consumption, the cutting that the machined part produced is conveniently cleared up to the cutting discharge port of right side front end.

The technical scheme has the following defects: the metal filter screen is used for filtering scrap iron in the cutting fluid, and when the meshes are small, the metal filter screen is easily blocked by the scrap iron, so that the passing speed of the cutting fluid is reduced, the cutting fluid returns to the cutting fluid recovery pool slowly, and the subsequent recycling of the cutting fluid is influenced; the large mesh can cause the iron filings with small particle size to leak, so that the cutting fluid can damage the workpiece when being sprayed on the workpiece, and the processing quality of the workpiece is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a numerical control machine tool, so that the scrap iron content of cutting fluid falling into a collecting hopper is greatly reduced, the influence on a workpiece during recycling can be reduced, and the processing quality is improved.

The above object of the present invention is achieved by the following technical solutions:

a numerical control machine tool comprises a frame, wherein a workbench and a cooling pipe are arranged on the frame, a hydraulic station is arranged in the frame and below the workbench, a liquid receiving hopper is arranged on the workbench, a lower opening of the liquid receiving hopper is in a flat rectangular shape, a rotating sleeve is rotatably arranged on the frame below the workbench, six liquid receiving discs are uniformly arranged on the rotating sleeve along the circumferential direction of the rotating sleeve at intervals, when any one of the liquid receiving discs is in a horizontal position with an upward opening, the lower opening of the liquid receiving hopper is positioned at the center line of the liquid receiving disc and is deviated to one side away from the rotating sleeve;

the lower surface of the liquid receiving disc is provided with an electromagnet, a collecting hopper is arranged on the rack below the liquid receiving disc, the vertical projections of the liquid receiving disc are all arranged in the collecting hopper, and the bottom of the collecting hopper is connected with a liquid discharge pipe leading to the outside of the rack.

Through adopting above-mentioned technical scheme, the cutting fluid that carries iron fillings falls down from the lower extreme that connects the liquid fill, falls on connecing the liquid dish, connects the electro-magnet on the liquid dish to inhale iron fillings to connecing the liquid dish end of a plate, and rotates the cover and rotate under the effect that the cutting fluid strikeed, and the cutting fluid after connecing the liquid dish falls to collecting in the fill to discharge through the fluid-discharge tube. The scrap iron is attracted by the electromagnet without considering the size of the scrap iron, so that the scrap iron content of the cutting fluid falling into the collecting hopper is greatly reduced, the influence on a workpiece during recycling can be reduced, and the processing quality is improved; meanwhile, the flow rate of the cutting fluid is not influenced, so that the subsequent cutting fluid circulation can work normally; and the cutting fluid falls on the fluid receiving tray after emptying, and falls in the collecting hopper again to dissipate heat, so that the temperature of the cutting fluid is reduced, and the cooling effect during subsequent recycling is better.

The invention may further be configured in a preferred example, the electric wire end of the electromagnet is located at an eccentric position on one end surface of the rotating sleeve close to the inner wall of the rack, a first conducting block which is coaxial with the rotating sleeve and is in a semi-ring shape is arranged on the inner wall of the rack, the first conducting block is electrified, and the electric wire end of the electromagnet can contact with the first conducting block;

when any one of the liquid receiving disks is in a horizontal position with an upward opening, the liquid receiving disk above the liquid receiving disk can be just electrified, meanwhile, the liquid receiving disks above the liquid receiving disk and in symmetrical positions are just powered off, a chip tray is arranged on the rack and right below the liquid receiving disk which is horizontal and has a downward opening, and the chip tray is positioned above the collecting hopper;

an air cylinder is horizontally arranged on the rack, a piston rod of the air cylinder is provided with a supporting block, the telescopic direction of the piston rod of the air cylinder is parallel to the axial direction of the rotating sleeve, when any one of the liquid receiving discs is horizontal and the opening of the liquid receiving disc is upward, the supporting block is supported on the lower surface of the liquid receiving disc, and the supporting block can be separated from the liquid receiving disc through retraction of the piston rod of the air cylinder;

connect the liquid dish lateral wall to slide along its direction of height and be provided with the kicking block, it is close to connect the liquid dish rotate cover one end be provided with be used for detecting the kicking block and with the proximity switch that the cylinder electricity is connected, proximity switch's electric wire end is located rotate the eccentric position on another terminal surface of cover, be provided with in the frame can with change to horizontal position and opening up connect the liquid dish the second conducting block of proximity switch's electric wire end contact, the second conducting block circular telegram.

Through adopting above-mentioned technical scheme, owing to can accumulate more iron fillings on connecing the liquid dish, need in time clear up, otherwise pile up too much after, the appeal of electro-magnet and the iron fillings far away from can greatly reduced to influence the filter effect. Through the setting of first conducting block for the electro-magnet just circular telegram when contacting with first conducting block, only there is magnetism in local position, when breaking away from first conducting block, then the electro-magnet loses magnetism, and loses magnetic position in piece dish top, after the electro-magnet outage, iron fillings can be because of gravity free fall to the piece dish in, realize collecting, and the cutting fluid falls to collecting and fights. And each liquid receiving disc is fully filled with the cutting fluid for a period of time, so that the six liquid receiving discs rotate at intervals, and compared with continuous rotation, scrap iron in the cutting fluid can be more stably absorbed in the liquid receiving discs; when the liquid receiving disc is positioned at a horizontal position with an upward opening, the second conductive block is communicated with the wire end of the proximity switch, the proximity switch is electrified, when the liquid receiving disc is fully connected, the floating block floats to the highest point, the proximity switch senses the floating block, namely a trigger signal, and sends the signal to the air cylinder, the air cylinder drives the supporting block to move, so that the supporting block is separated from the liquid receiving disc, the liquid receiving disc rotates under the action of gravity, and cutting liquid is poured out along with the rotation of the liquid receiving disc; meanwhile, the wire end of the proximity switch is separated from the second conductive block, the cylinder drives the supporting block to move reversely again and then returns to the original position, and the latter liquid receiving disc can be supported by the supporting block again. When the latter liquid receiving disc touches the supporting block, certain vibration can be generated, and the vibration can shake off scrap iron remained on the liquid receiving disc, so that the quantity of the scrap iron remained on the liquid receiving disc can be reduced.

In a preferred example, the liquid receiving disc can be further configured such that an included angle between a side edge of the liquid receiving disc away from the rotating sleeve and the bottom plate is 120 degrees.

Through adopting above-mentioned technical scheme for be the ascending liquid dish pivoted in-process that connects of horizontal opening, cutting fluid can flow more soon, accelerate exhaust efficiency, and after the liquid dish that connects changes, immediately can catch the cutting fluid that falls down, thereby but greatly reduced links up the possibility that in-process cutting fluid splashes.

The invention can be further configured in a preferred example that the debris tray is provided with a sponge layer, and the bottom of the debris tray is provided with a liquid leakage hole.

Through adopting above-mentioned technical scheme, at iron fillings from the in-process that connects the liquid dish to fall, probably have remaining cutting fluid to fall, through the setting of sponge layer and weeping hole, can make the cutting fluid that falls fall through the sponge layer on the one hand and fall to the collection fill, on the other hand can reduce the probability that iron fillings fell from the piece dish to the collection fill.

In a preferred example of the present invention, the hydraulic station may further include an oil tank, an oil return line, and a radiator, the oil return line is connected to the oil tank, the radiator is disposed on the oil return line, a support is disposed on an inner wall of the rack, the support is provided with a heat conduction cylinder, the heat conduction cylinder is surrounded outside the radiator, the radiator is located in the heat conduction cylinder, an upper end of the heat conduction cylinder is provided with a fan, and the radiator is provided with a temperature sensor electrically connected to the fan.

By adopting the technical scheme, the hydraulic station can generate heat in the process of providing hydraulic oil for the machine tool, the optimal working environment temperature of the hydraulic system is generally 14-38 ℃, the optimal temperature of the hydraulic oil is 20-60 ℃, and after the hydraulic station is used for a period of time or when the external temperature is higher, the temperature of the hydraulic oil can rise and possibly exceed the optimal position, so that the viscosity of the oil liquid is reduced, and the pressure of the hydraulic system is unstable; aggravate the hydraulic pump wear; the oil cylinder sealing ring, the O-shaped ring and the dust blocking ring are aged and the service life is shortened; the hydraulic control element is blocked by thermal expansion, so that the workpiece cannot be processed smoothly; the aging of the oil pipe rubber is accelerated, and the oil pipe is cracked. Generally, a radiator is arranged to radiate heat, but when the external temperature is too high or the oil temperature is high, the natural radiation of the radiator can not meet the radiation requirement. Through the setting of a heat conduction section of thick bamboo and fan, when temperature sensor detected the high temperature, the fan started for the velocity of flow of air around the radiator, and accelerated the heat of radiator and lost speed to can accelerate the decline of oil temperature, reduce the possibility of breaking down. And the heat-conducting cylinder can concentrate the wind blown by the fan, so that the air flow rate is accelerated.

The present invention may further be configured in a preferred example, a plurality of heat conducting fins are arranged on the inner wall of the heat conducting cylinder at intervals, and the heat conducting fins are arranged obliquely downward.

By adopting the technical scheme, the contact area of the heat-conducting cylinder and air is increased, the heating area of the heat-conducting cylinder is increased, and the heat dissipation is accelerated; and the heat conducting fins are arranged downwards in an inclined mode, so that the air quantity of a fan of the fan directly blowing to the surface of the radiator can be increased, and the heat dissipation is further accelerated.

The invention may further be configured in a preferred example, the heat conducting fins have multiple layers, the heat conducting fins of two adjacent layers are arranged in a staggered manner, and the circles surrounded by the vertical projections of the heat conducting fins have intervals.

Through adopting above-mentioned technical scheme, consider the circulation of wind on the one hand, another conveniently considers every layer of conducting strip homoenergetic and is blown to by wind to improve the radiating efficiency of conducting strip self.

The invention may in a preferred example be further configured such that the drain pipe is helically wound around the heat sink.

Through adopting above-mentioned technical scheme, the temperature of cutting fluid is lower, after the radiator is twined around to the fluid-discharge tube, can take away partial heat through the transmission of cutting fluid to can accelerate the giving off of heat.

The invention may further be configured in a preferred example that the drain pipe is wound on a section of the heat sink outer wall by using a heat-conducting metal pipe, and the metal pipe is integrally arranged on the heat sink outer wall.

By adopting the technical scheme, the metal pipe has higher heat transfer capacity, and the heat on the radiator can be transferred to the liquid discharge pipe at a higher speed, so that the heat dissipation is accelerated; and the integral arrangement can reduce the connection clearance between the metal pipe and the radiator, and further accelerate the heat transfer.

The invention can be further configured in a preferred example that the inlet end and the outlet end of the metal pipe are provided with three-way pipes, two pipe orifices of each three-way pipe are respectively connected with the liquid discharge pipe and the metal pipe, the rest pipe orifice cover of the three-way pipe is provided with a sealing cap, and a valve is arranged at the position where the liquid discharge pipe is connected with the three-way pipe; the metal pipe is internally provided with a pull rope in a penetrating manner, the two ends of the pull rope penetrate through the pipe orifice of the three-way pipe covered with the sealing cap, the pull rope is clamped and fixed through the covering of the sealing cap, the pull rope is provided with a brush ball, and the outer diameter of the brush ball is larger than the inner diameter of the metal pipe.

Through adopting above-mentioned technical scheme, because can have the dust in the cutting fluid, when passing through the tubular metal resonator, probably adhere to on the inner wall of tubular metal resonator to reduce heat transfer's efficiency. Through the setting of brush ball and tubular metal resonator, when needs clearance, close the valve, open the sealing cap, the pulling stay cord can make the brush ball at the intraductal motion of metal to scrub the inner wall of tubular metal resonator, wash in leading to the tubular metal resonator from the mouth of pipe of the three-way pipe that is located the top again, thereby realize the clearance to the tubular metal resonator inner wall.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the scrap iron is attracted by the electromagnet without considering the size of the scrap iron, so that the scrap iron content of the cutting fluid falling into the collecting hopper is greatly reduced, the influence on a workpiece during recycling can be reduced, and the processing quality is improved;

2. through the setting of a heat conduction section of thick bamboo and fan, when temperature sensor detected the high temperature, the fan started for the velocity of flow of air around the radiator, and accelerated the heat of radiator and lost speed to can accelerate the decline of oil temperature, reduce the possibility of breaking down. The heat conducting cylinder can be arranged to collect people blown by the fan, so that the air flow rate is accelerated;

3. the liquid discharge pipe is wound on the radiator, so that part of heat can be taken away through the transmission of the cutting fluid, and the heat dissipation can be accelerated;

4. through the setting of brush ball and tubular metal resonator, when needs clearance, close the valve, open the sealing cap, the pulling stay cord can make the brush ball at the intraductal motion of metal to scrub the inner wall of tubular metal resonator, wash in leading to the tubular metal resonator from the mouth of pipe of the three-way pipe that is located the top again, thereby realize the clearance to the tubular metal resonator inner wall.

Drawings

FIG. 1 is a schematic representation (one) of the three-dimensional structure of the present invention;

FIG. 2 is a schematic view (II) of the three-dimensional structure of the present invention, in which a part of the frame is cut;

FIG. 3 is an enlarged schematic view of section A of FIG. 2;

FIG. 4 is a schematic view showing a three-dimensional structure of a filter part according to the present invention;

FIG. 5 is an enlarged schematic view of section B of FIG. 1;

fig. 6 is a schematic view of a perspective structure of a hydraulic station portion in the present invention, in which one of the sealing caps is exploded and a part of the heat conductive cylinder is cut.

Reference numerals: 1. a frame; 11. a work table; 12. a cooling tube; 13. a liquid receiving hopper; 15. a sealing door; 151. a spring plate; 16. placing a rack; 17. a scrap tray; 171. a sponge layer; 18. an observation window; 19. a lamp; 2. a hydraulic station; 21. an oil tank; 22. an oil return line; 23. a heat sink; 31. rotating the sleeve; 32. a liquid receiving disc; 321. a slideway; 322. floating blocks; 323. a proximity switch; 324. a second conductive block; 33. an electromagnet; 34. a first conductive block; 35. a cylinder; 36. a support block; 37. a collecting hopper; 38. a liquid discharge pipe; 41. a support; 42. a heat conducting tube; 421. a heat conductive sheet; 43. a fan; 44. a temperature sensor; 45. a metal tube; 451. a three-way pipe; 452. a sealing cap; 46. a valve; 47. pulling a rope; 48. a brush ball is provided.

Detailed Description

The present invention is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, a numerical control machine tool comprises a frame 1, a workbench 11 and a cooling pipe 12 are fixedly arranged on the frame 1, a hydraulic station 2 is arranged in the frame 1 and below the workbench 11, a liquid receiving hopper 13 is arranged on the workbench 11, a collecting hopper 37 is fixedly arranged on the frame 1 below the liquid receiving tray 32, a liquid discharge pipe 38 leading to the outside of the frame 1 is connected to the bottom of the collecting hopper 37, cutting liquid sprayed by the cooling pipe 12 falls into the collecting hopper 37 through the liquid receiving hopper 13, and then is discharged out of the frame 1 from the collecting hopper 37.

Referring to fig. 2 and 3, the lower opening of the liquid receiving hopper 13 is in a flat rectangle shape, a rotating sleeve 31 is rotatably mounted on the frame 1 between the liquid receiving hopper 13 and the collecting hopper 37, six liquid receiving disks 32 are uniformly arranged on the rotating sleeve 31 at intervals along the circumferential direction of the rotating sleeve 31, the vertical projections of the six liquid receiving disks 32 are all in the collecting hopper 37, and the included angle between the side edge of the liquid receiving disk 32 far away from the rotating sleeve 31 and the bottom plate is 120 degrees; when any liquid receiving disc 32 is in a horizontal position with the opening facing upwards, the lower opening of the liquid receiving hopper 13 is positioned at the center line of the liquid receiving disc 32 and is biased to the side away from the rotating sleeve 31.

Referring to fig. 4, an electromagnet 33 is fixedly arranged on the lower surface of the bottom of the liquid receiving disc 32, the electromagnet 33 is plate-shaped, and the end of an electric wire of the electromagnet 33 is positioned on one end surface of the movable sleeve, which is close to the inner wall of the rack 1, and is positioned at an eccentric position; meanwhile, a semi-annular first conductive block 34 coaxial with the rotating sleeve 31 is fixedly arranged on the inner wall of the rack 1, the first conductive block 34 is electrified, and the end of the electric wire of the electromagnet 33 can be contacted with the first conductive block 34; when any liquid receiving tray 32 is in a horizontal position with an upward opening, the liquid receiving tray 32 above the liquid receiving tray can be powered on just, and the liquid receiving trays 32 above the liquid receiving tray and in a symmetrical position are powered off just.

The frame 1 is provided with the cylinder 35 horizontally and fixedly, the piston rod of the cylinder 35 is provided with the supporting block 36 fixedly, and the telescopic direction of the piston rod of the cylinder 35 is parallel to the axial direction of the rotating sleeve 31, when any one liquid receiving disc 32 is horizontal and has an upward opening, the supporting block 36 is supported on the lower surface of the liquid receiving disc 32, and the supporting block 36 can be separated from the liquid receiving disc 32 through retraction of the piston rod of the cylinder 35, so that the liquid receiving disc 32 can rotate.

Referring to fig. 3 and 4, in order to control the expansion and contraction of the cylinder 35 to control the rotation of the liquid receiving plate 32, a slide way 321 is fixedly arranged on the side wall of the liquid receiving plate 32, the length direction of the slide way 321 is the same as the depth direction of the liquid receiving plate 32, and a floating block 322 is arranged in the slide way 321 in a sliding manner; a proximity switch 323 used for detecting the floating block 322 and electrically connected with the air cylinder 35 is fixedly arranged at one end of the liquid receiving disc 32 close to the rotating sleeve 31, an electric wire end of the proximity switch 323 is positioned at an eccentric position on the other end face of the rotating sleeve 31, the electric wire end of the proximity switch 323 and the electric wire end of the electromagnet 33 are respectively positioned at two end faces of the rotating sleeve 31, a second conductive block 324 capable of contacting with the electric wire end of the proximity switch 323 rotating to the horizontal position is fixedly arranged on the machine frame 1, and the second conductive block 324 is electrified. Therefore, when the liquid receiving disc 32 rotates to the horizontal position and the opening faces upwards, the proximity switch 323 on the liquid receiving disc is powered on, along with the falling of the cutting liquid, the liquid level of the cutting liquid in the liquid receiving disc 32 rises, the floating block 322 also rises in height under the action of the floating force, when the liquid level is close to the upper opening of the liquid receiving disc 32, the proximity switch 323 can detect the floating block 322, the proximity switch 323 can send an electric signal to the air cylinder 35, the piston rod of the air cylinder 35 retracts, the supporting block 36 is separated from the lower surface of the liquid receiving disc 32, the liquid receiving disc 32 rotates under the action of gravity, after the rotation, the proximity switch 323 is powered off, the piston rod of the air cylinder 35 extends again, and after the next liquid receiving disc 32 rotates, the next liquid receiving disc can be supported by the supporting block 36, the liquid receiving is.

Referring to fig. 1 and 5, a gap (not shown in the figure) is formed in the frame 1, the horizontal height of the gap is between the horizontal liquid receiving plate 32 (see fig. 3) with a downward opening and the collecting hopper 37 (see fig. 3), the gap is provided with a sealing door 15, the inner wall of the frame 1 and two horizontal edges of the gap are fixed with placing frames 16, a scrap plate 17 is placed on the placing frames 16, and the scrap plate 17 is positioned right above the collecting hopper 37 and right below the horizontal liquid receiving plate 32 with a downward opening. After the electromagnet 33 is not electrified, the scrap iron adsorbed on the inner bottom surface of the liquid receiving disc 32 falls to the scrap disc 17 under the action of self gravity to collect the scrap iron, so that the liquid receiving disc 32 is cleaner when receiving cutting liquid again.

Since there is a possibility that cutting fluid may remain on the fluid-receiving plate 32, when the iron chips fall on the chip tray 17, the cutting fluid may also fall on the chip tray 17, therefore, a sponge layer 171 is laid on the chip tray 17, and a fluid-leaking hole (not shown in the figure) is formed at the bottom of the chip tray 17 for the cutting fluid to flow down into the collecting hopper 37.

Referring to fig. 5, an observation window 18 for observing the scrap tray 17 is installed on the side wall of the frame 1 and near the gap, a lamp 19 (see fig. 3) is arranged in the frame 1, the lamp 19 is used for irradiating the scrap tray 17, a switch of the lamp 19 is embedded on the outer wall of the frame 1, and the lamp 19 is convenient for seeing the amount of scrap iron on the scrap tray 17 clearly. Rotate on the frame 1 outer wall and be provided with shell fragment 151, when sealing door 15 rotated to seal the breach, shell fragment 151 pressed on sealing door 15, realized the fixed to sealing door 15. When the working personnel see that the scrap iron amount on the scrap iron plate 17 is large from the observation window 18, the elastic sheet 151 can be rotated open, the sealing door 15 is opened, and the scrap iron plate 17 is lifted from the placing frame 16 and taken out for cleaning, so that the scrap iron cleaning machine is convenient.

Referring to fig. 2 and 6, the hydraulic station 2 has an oil tank 21, an oil return pipeline 22, and a radiator 23, the oil return pipeline 22 is connected to the oil tank 21, the radiator 23 is disposed on the oil return pipeline 22, a bracket 41 is fixedly disposed on an inner wall of the frame 1, the bracket 41 is fixedly connected to a heat conduction cylinder 42, the heat conduction cylinder 42 is encircled outside the radiator 23, and the radiator 23 is located in the heat conduction cylinder 42; the upper end of the heat conduction cylinder 42 is provided with a fan 43 through a bolt, and the radiator 23 is fixedly provided with a temperature sensor 44 electrically connected with the fan 43. When the temperature sensor 44 detects that the temperature of the heat sink 23 is higher than the set temperature, the temperature sensor 44 sends an electrical signal to the fan 43, the fan 43 is started to blow air into the heat conducting cylinder 42, and heat dissipation of the heat sink 23 is accelerated.

In order to improve the heat dissipation speed of the heat sink 23, a plurality of heat conducting fins 421 are welded on the inner wall of the heat conducting cylinder 42 at intervals, the heat conducting fins 421 have multiple layers, the heat conducting fins 421 of two adjacent layers are arranged in a staggered manner, and the circles surrounded by the vertical projections of the heat conducting fins 421 have intervals; and the heat-conducting fins 421 are arranged obliquely downward, so that the wind of the fan 43 can blow to the side wall of the radiator 23, and the heat dissipation is improved.

Referring to fig. 6, since the temperature of the cutting fluid is low, the drain pipe 38 is wound around the outer wall of the radiator 23 and extends to the outside of the machine frame 1, and the heat of the radiator 23 is absorbed by the cutting fluid, thereby accelerating cooling. The section of the liquid discharge pipe 38 wound on the outer wall of the radiator 23 adopts a heat-conducting metal pipe 45, and the metal pipe 45 is integrally arranged on the outer wall of the radiator 23 to improve the heat-conducting speed. Meanwhile, considering that dirt is accumulated on the inner wall of the metal pipe 45 and the heat conduction of the metal pipe 45 is affected, three-way pipes 451 are installed at the inlet end and the outlet end of the metal pipe 45, two pipe orifices of each three-way pipe 451 are respectively connected with the liquid discharge pipe 38 and the metal pipe 45, the remaining pipe orifice of the three-way pipe 451 is covered with a sealing cap 452 in a threaded manner, and a valve 46 is installed at the position where the liquid discharge pipe 38 is connected with the three-way pipe 451.

A pull rope 47 is arranged in the metal tube 45 in a penetrating way, both ends of the pull rope 47 penetrate through the nozzle of the three-way pipe 451 covered with the sealing cap 452, the pull rope 47 is clamped and fixed through the covering of the sealing cap 452, a brush ball 48 is fixed on the pull rope 47, and the outer diameter of the brush ball 48 is larger than the inner diameter of the metal tube 45. When needing to clear up, close valve 46, open sealed cap 452, twitch stay cord 47, make brush ball 48 move and rub the inner wall of tubular metal resonator 45 in tubular metal resonator 45, clear up tubular metal resonator 45 inner wall, the rethread water washes after clearing up, can accomplish the clearance to tubular metal resonator 45.

The working principle of the embodiment is as follows:

when a workpiece on the workbench 11 is processed, the cooling pipe 12 sprays cutting fluid to the workpiece, the cutting fluid carries scrap iron to flow to the fluid receiving hopper 13 and fall onto the fluid receiving disc 32 below, the liquid level in the fluid receiving disc 32 rises, meanwhile, the floating block 322 also rises, and the scrap iron is absorbed at the disc bottom of the fluid receiving disc 32 by the electromagnet 33; when the proximity switch 323 detects the floating block 322, the air cylinder 35 moves, the supporting block 36 is separated from the liquid receiving disc 32, the liquid receiving disc 32 rotates due to gravity, the proximity switch 323 is powered off, cutting liquid flows out, the air cylinder 35 extends reversely, and the next liquid receiving disc 32 rotates to abut against the supporting block 36.

In the process of turning down after being filled with the cutting fluid, the next liquid receiving disc 32 is also turned down and simultaneously receives the cutting fluid to absorb the scrap iron of the cutting fluid next time.

When the liquid receiving plate 32 rotates to the end of the wire to be separated from the first conductive block 34, the electromagnet 33 loses magnetism, and the iron chips fall into the scrap plate 17 under the action of gravity. When the worker sees more scrap iron in the scrap iron tray 17 through the observation window 18, the sealing door 15 can be opened for cleaning.

When the temperature detected by the temperature sensor 44 is higher than the set value, the fan 43 is started to cool.

After a period of use, the inner wall of the metal tube 45 can be cleaned, the valve 46 is closed, the sealing cap 452 is opened, the pull rope 47 is pulled, the brush ball 48 is brushed, and then water is used for cleaning.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a numerical control machine tool, includes frame (1), be provided with workstation (11) and cooling tube (12) in frame (1), just be located in frame (1) workstation (11) below is provided with hydraulic pressure station (2), workstation (11) are provided with and connect liquid fill (13), its characterized in that: the lower opening of the liquid receiving hopper (13) is in a flat rectangular shape, a rotating sleeve (31) is rotatably mounted on the rack (1) below the workbench (11), six liquid receiving discs (32) are uniformly arranged on the rotating sleeve (31) at intervals along the circumferential direction of the rotating sleeve, when any one of the liquid receiving discs (32) is in a horizontal position with an upward opening, the lower opening of the liquid receiving hopper (13) is positioned at the center line of the liquid receiving disc (32) and is deviated to one side away from the rotating sleeve (31);

an electromagnet (33) is arranged on the lower surface of the liquid receiving disc (32), a collecting hopper (37) is arranged on the rack (1) below the liquid receiving disc (32), the vertical projections of the liquid receiving disc (32) are all arranged in the collecting hopper (37), and a liquid discharge pipe (38) leading to the outside of the rack (1) is connected to the bottom of the collecting hopper (37);

the electric wire end of the electromagnet (33) is positioned at an eccentric position on one end face, close to the inner wall of the rack (1), of the rotating sleeve (31), a first semi-annular conductive block (34) coaxial with the rotating sleeve (31) is arranged on the inner wall of the rack (1), the first conductive block (34) is electrified, and the electric wire end of the electromagnet (33) can be in contact with the first conductive block (34);

when any one of the liquid receiving disks (32) is in a horizontal position with an upward opening, the liquid receiving disk (32) above the liquid receiving disk can be powered on right, the liquid receiving disk (32) above the liquid receiving disk and in a symmetrical position is powered off right, a chip crushing disk (17) is arranged on the rack (1) and right below the liquid receiving disk (32) with a horizontal position and a downward opening, and the chip crushing disk (17) is positioned above the collecting hopper (37);

an air cylinder (35) is horizontally arranged on the rack (1), a piston rod of the air cylinder (35) is provided with a supporting block (36), the telescopic direction of the piston rod of the air cylinder (35) is parallel to the axial direction of the rotating sleeve (31), when any one of the liquid receiving discs (32) is horizontal and has an upward opening, the supporting block (36) is supported on the lower surface of the liquid receiving disc (32), and the supporting block (36) can be separated from the liquid receiving disc (32) through retraction of the piston rod of the air cylinder (35);

connect liquid dish (32) lateral wall to slide along its direction of height and be provided with floating block (322), it is close to connect liquid dish (32) rotate cover (31) one end be provided with be used for detecting floating block (322) and with proximity switch (323) that cylinder (35) electricity is connected, proximity switch (323)'s electric wire end is located rotate the eccentric position on another terminal surface of cover (31), be provided with on frame (1) can with turn to horizontal position and opening up connect liquid dish (32) second conducting block (324) of proximity switch (323)'s electric wire end contact, second conducting block (324) circular telegram.

2. The numerical control machine tool according to claim 1, characterized in that: the side edge of the liquid receiving disc (32) far away from the rotating sleeve (31) forms an included angle of 120 degrees with the bottom plate.

3. The numerical control machine tool according to claim 1, characterized in that: the scrap tray (17) is provided with a sponge layer (171), and liquid leakage holes are formed in the bottom of the scrap tray (17).

4. The numerical control machine tool according to claim 1, characterized in that: hydraulic pressure station (2) have oil tank (21), return oil pipeline (22), radiator (23), return oil pipeline (22) with oil tank (21) are connected, radiator (23) set up return oil pipeline (22) are last, frame (1) inner wall is provided with support (41), support (41) are provided with heat-conducting tube (42), heat-conducting tube (42) circle is in radiator (23) outer just radiator (23) are located in heat-conducting tube (42), the upper end of heat-conducting tube (42) is provided with fan (43), radiator (23) be provided with temperature sensor (44) that fan (43) electricity is connected.

5. The numerical control machine tool according to claim 4, characterized in that: the inner wall of the heat conducting cylinder (42) is provided with a plurality of heat conducting fins (421) at intervals, and the heat conducting fins (421) are obliquely and downwards arranged.

6. The numerical control machine tool according to claim 5, characterized in that: the heat conducting fins (421) are arranged in multiple layers, the adjacent two layers of heat conducting fins (421) are arranged in a staggered mode, and the heat conducting fins (421) are arranged at intervals in a circle defined by vertical projection.

7. The numerical control machine tool according to claim 4, characterized in that: the drain pipe (38) is spirally wound around the radiator (23).

8. The numerical control machine tool according to claim 7, characterized in that: the liquid discharge pipe (38) is wound on a section of the outer wall of the radiator (23) and adopts a heat-conducting metal pipe (45), and the metal pipe (45) is integrally arranged on the outer wall of the radiator (23).

9. The numerical control machine tool according to claim 8, wherein: the inlet end and the outlet end of the metal pipe (45) are respectively provided with a three-way pipe (451), two pipe orifices of each three-way pipe (451) are respectively connected with the liquid discharge pipe (38) and the metal pipe (45), the rest pipe orifice cover of the three-way pipe (451) is provided with a sealing cap (452), and a valve (46) is arranged at the position where the liquid discharge pipe (38) is connected with the three-way pipe (451); a pull rope (47) penetrates through the metal pipe (45), the two ends of the pull rope (47) penetrate through the opening of the three-way pipe (451) covered with a sealing cap (452), the pull rope (47) is clamped and fixed through the covering of the sealing cap (452), a brush ball (48) is arranged on the pull rope (47), and the outer diameter of the brush ball (48) is larger than the inner diameter of the metal pipe (45).