Numerical control machine tool cooling liquid circulation system and numerical control machine tool

Abstract

The invention belongs to the technical field of numerical control machine tools, and particularly relates to a numerical control machine tool cooling liquid circulation system and a numerical control machine tool. The device has the beneficial effects that the spraying path can be changed, and the cleaning effect on scrap iron generated during machining is guaranteed. A cooling liquid circulation system of a numerical control machine tool comprises a support, a support is fixedly connected to the inner side of the support, a pulling device is rotationally connected to the rear side of the support, two meshed pulling gears are rotationally connected to the front side of the support, a washing part is installed on the upper side of the support and comprises a washing sealing shell, and the washing sealing shell is fixedly connected to the support. A rotary sealing block is rotationally connected into the washing sealing shell, a washing nozzle is fixedly connected to the upper side of the rotary sealing block, a sealing push piece is fixedly connected to the lower side of the rotary sealing block, an air guide sealing block is fixedly connected to the lower side of the washing sealing shell, an air guide blocking block slides on the upper side of the air guide sealing block, and a lower moving block slides on the lower side of the air guide sealing block. The air guide blocking block is fixedly connected with the lower moving block through a supporting rod, and the lower side of the lower moving block is fixedly connected with a pulling rack.

Description

Technical Field

[0001] The invention belongs to the technical field of numerically controlled machine tools, and in particular relates to a cooling liquid circulation system for numerically controlled machine tools and a numerically controlled machine tool. Background Art

[0002] During the operation of CNC machine tools, cooling the tool and workpiece is an essential operation. Timely cooling can reduce the deformation and wear of the tool during use, increase the service life of the tool, and reduce the deformation of the workpiece after heating, thereby improving the processing accuracy. At the same time, the use of coolant flushing can remove the iron filings generated by the processing from the processing area to prevent the iron filings from affecting the effect of precision processing. In order to remove the iron filings and reduce the temperature of the coolant, the coolant is generally sprayed and flushed in the processing area, but the position of the spray coolant is mostly fixed in one place, and the spraying angle cannot be changed. If the spraying angle is changed, it is only carried out by making the nozzle circulate around the tool and the workpiece in one direction. Due to the single spraying path of the above-mentioned spraying method, under the premise of unchanged spraying force, the iron filings retained on the tool may interfere with each other due to the angle and processing path and the spraying path, resulting in the inability to be removed by a single spraying method, and the nozzle surrounding the spraying easily blocks the processing area, which is not convenient for the processing personnel to supervise and inspect the processing process. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a CNC machine tool coolant circulation system and a CNC machine tool, the beneficial effect of the present invention is that the spraying path can be changed to ensure the cleaning effect of the iron chips generated by processing.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A cooling liquid circulation system for a numerically controlled machine tool comprises a support, a support is fixedly connected to the inner side of the support, a pull device is rotatably connected to the rear side of the support, two mutually meshing pull gears are rotatably connected to the front side of the support, a flushing part is installed on the upper side of the support, the flushing part comprises a flushing shell, the flushing shell is fixedly connected to the support, a rotating seal block is rotatably connected inside the flushing shell, a flushing nozzle is fixedly connected to the upper side of the rotating seal block, a sealing push piece is fixedly connected to the lower side of the rotating seal block, and an air guide seal block is fixedly connected to the lower side of the flushing shell. An air guide block is slidingly provided on the upper side of the air guide sealing block, and a lower moving block is slidingly provided on the lower side of the air guide sealing block. The air guide block and the lower moving block are fixedly connected by a support rod, a lever rack is fixedly provided on the lower side of the lower moving block, and a guide block is also fixedly provided inside the flushing shell. The guide block is arranged on the inner side of the rotating sealing block, the lever rack is meshed with the lever gear on the left side, and an air guide block is fixedly provided on the upper side of the lever rack. A Y-shaped air duct is provided on the air guide sealing block, and two air outlets corresponding to the Y-shaped air duct are provided on the flushing shell.

[0006] The two pull gears are both fixedly connected with pull handles, and the outer edges of the pull handles are circular.

[0007] The pulling device comprises a rotating handle, which is rotatably connected to the bracket, an extension handle is slidably connected to the rotating handle, and a rotating push head capable of pulling the pulling handle is arranged on the outer side of the extension handle.

[0008] The rotating push head is rotatably connected to the outer side of the extension handle.

[0009] An escape groove is provided on the inner side of the trigger handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0011] Figure 1 The present invention is a schematic diagram of the installation of a coolant circulation system for a CNC machine tool;

[0012] Figure 2 This is the internal structure diagram of the coolant circulation system of the CNC machine tool;

[0013] Figure 3 It is a structural cross-sectional view of the circulatory system;

[0014] Figure 4 This is a schematic diagram of the installation of the wrench gear;

[0015] Figure 5 It is an enlarged schematic diagram of part of the structure of the scour enclosure;

[0016] Figure 6 It is the installation cross-sectional view of the pressure strip and the conical plug;

[0017] Figure 7 It is a structural schematic diagram of a rotating sealing block;

[0018] Figure 8 This is a schematic diagram of the installation after the trigger device is opened;

[0019] Fig. 9 It is a structural schematic diagram of the triggering device;

[0020] Fig.10 It is a schematic diagram of the structure of the shift gear. DETAILED DESCRIPTION

[0021] like Figure 1-5 and Figure 7 As shown:

[0022] A cooling liquid circulation system for a numerically controlled machine tool comprises a support 000, a support 010 is connected to the inner side of the support 000 by screws, a pull device 100 is rotatably connected to the rear side of the support 010 through the output shaft of a rotating motor, the rotating motor and the corresponding reducer are both fixed on the support 000, the front side of the support 010 is rotatably connected to two mutually meshing pull gears 020, a flushing part 200 is installed on the upper side of the support 000, and the flushing part 200 includes a flushing The flushing shell 210 is welded on the support 000, and the internal part of the flushing shell 210 is rotatably connected with a rotating seal block 220, and the upper side of the rotating seal block 220 is connected with a flushing nozzle 060 by screws, and the lower side of the rotating seal block 220 is welded with a sealing push piece 221, and the lower side of the flushing shell 210 is welded with an air guide sealing block 040, and the upper side of the air guide sealing block 040 is slid with an air guide blocking block 050, and the lower side of the air guide sealing block 040 is slid with a lower moving block 23 0, the air guide block 050 is connected to the lower moving block 230 through a support rod, the lower side of the lower moving block 230 is connected to a lever rack 030 through a screw, the lever rack 030 is meshed with the lever gear 020 on the left, the upper side of the lever rack 030 is welded with an air guide block 050, the air guide sealing block 040 is provided with a Y-shaped air passage 041 for compressed air injection, and the flushing shell 210 is provided with two air outlets 21 corresponding to the Y-shaped air passage 041 1. A liquid channel for injecting coolant is provided inside the flow guide block 250. The rotating block 220 can split the flushing shell 210 into two sealed cavities, the inner cavity is provided with a flow guide block 250, the flow guide block 250 is welded on the flushing shell 210, the lower side of the rotating block 220 is in contact with the upper side of the air guide block 050, and two openings are provided on the upper side of the Y-shaped air channel 041. Both openings on the upper side of the Y-shaped air channel 041 can be blocked by the air guide block 050;

[0023] When the circulation system is installed, the support 000 can be installed on the lower side of the processing area of ​​the CNC machine tool, so that the flushing part 200 can pass through the workpiece and the tool, and the flushing nozzle 060 rotated on the flushing shell 210 by the rotating sealing block 220 can rotate around the processing area, and then the coolant pipe is connected to the guide block 250, and the compressed air pipe is connected to the air guide sealing block 040, so that the installation of the circulation system can be completed;

[0024] When the processing area is cooled, the rotating motor can be started, so that the output shaft of the rotating motor can drive the pulling device 100 to rotate clockwise. Figure 4As shown, when the pulling device 100 rotates to the lower side of the pulling gear 020 on the left, the pulling device 100 can push the pulling gear 020 on the left to rotate clockwise, and then the pulling gear 020 on the left can drive the pulling rack 030 to move to the right, so that the lower moving block 230 can be driven by the pulling rack 030, and then the air guide block 050 can be driven to move, so that the left opening of the Y-shaped airway 041 can be exposed, so that the compressed air can enter the outer cavity through the left opening of the Y-shaped airway 041, and then the compressed air can push the sealing push piece 221 on the lower side of the rotating sealing block 220, so that the rotating sealing block 220 can rotate clockwise inside the flushing shell 210. The flushing nozzle 060 rotates clockwise by the rotating sealing block 220, that is, by pushing the toggle rack 030 to move rightward, the compressed air can enter between the sealing push piece 221 and the outer cavity. At the same time, since the lower side of the rotating sealing block 220 is in contact with the upper side of the air guide block 050, it can be ensured that the air guide block 050 can divide the outer cavity, thereby ensuring that the compressed cavity entering between the sealing push piece 221 and the outer cavity will not enter the other side of the outer cavity from the direction of the air guide block 050, but will only push the rotating sealing block 220 to rotate clockwise on the flushing housing 210 through the sealing push piece 221; when the toggle device 100 rotates to the right toggle gear 02 0, the pulling device 100 can push the pulling gear 020 on the right side to rotate clockwise, and then the pulling gear 020 on the right side can drive the pulling gear 020 on the left side to rotate counterclockwise, and then the pulling gear 020 on the left side can drive the pulling rack 030 to move leftward, and the pulling rack 030 drives the lower moving block 230, and then drives the air guide block 050 to move, so that the right side opening of the Y-shaped airway 041 can be exposed, that is, by pushing the pulling rack 030 to move leftward, the compressed air enters the outer cavity and the sealing push piece 221 through the right side opening of the Y-shaped airway 041, and then the sealing push piece 221 can push the rotating sealing block 230 to move leftward. 20 rotates counterclockwise on the flushing shell 210, so that the rotating seal block 220 can drive the flushing nozzle 060 to rotate counterclockwise, that is, after the rotating motor is started to drive the trigger device 100 to rotate clockwise, the two trigger gears 020 can be driven to rotate clockwise in turn, and the flushing nozzle 060 can be driven to rotate clockwise or counterclockwise accordingly, and then the flushing nozzle 060 can be driven to reciprocate on the flushing shell 210 by starting the rotating motor, and then when the coolant is injected into the flushing nozzle 060 through the guide block 250, the spraying path of the coolant, that is, the spraying angle, can be continuously changed, thereby ensuring the cleaning effect of the iron filings generated by the processing;At the same time, the speed of the rotating sealing block 220 on the flushing housing 210 can be adjusted by changing the compressed air pressure, thereby changing the frequency of the reciprocating motion of the rack 030. At the same time, the air in the outer cavity can escape through the air outlet 211 when being pushed by the sealing push piece 221, thereby not blocking the movement of the sealing push piece 221.

[0025] When the trigger device 100 is closed, one of the trigger gears 020 is moved by the trigger device 100, so that the compressed air can push the rotating seal block 220 to rotate clockwise or counterclockwise on the flushing shell 210, that is, the trigger rack 030 is at the left or right position at this time, and the compressed air can enter between the sealing push piece 221 and the outer cavity from one of the openings on the upper side of the Y-shaped air channel 041, and then can continuously push the rotating seal block 220 to rotate on the flushing shell 210 until the sealing push piece 221 abuts against the other side of the air guide block 050, so that the flushing nozzle 060 can continuously stay at the said position, so that the coolant sprayed by the flushing nozzle 060 can be sprayed from bottom to top on the processing area, so as to provide convenience for the processing personnel to observe the processing area;

[0026] At the same time, after the coolant is injected into the guide block 250, the coolant can enter and fill the inner cavity of the flushing part 200 through the liquid channel. Therefore, when the rotating block 220 drives the flushing nozzle 060 to rotate on the flushing shell 210, the flushing nozzle 060 can be connected with the inner cavity, thereby ensuring that no matter how the flushing nozzle 060 rotates, the coolant can be sprayed to the processing area without being stuck.

[0027] Secondly, the support 000 can seal the structure on the lower side of the flushing part 200 to prevent the coolant containing iron filings from affecting the inside of the circulation system.

[0028] like Fig.10 As shown:

[0029] A pulling handle 021 is welded to both of the pulling gears 020, and the outer edge of the pulling handle 021 is circular. The setting of the pulling handle 021 can avoid interference between the pulling device 100 and the pulling rack 030 when pushing the pulling gear 020. At the same time, the circular shape of the outer edge of the pulling handle 021 can ensure that when the pulling device 100 contacts the pulling handle 021 and pushes the pulling gear 020 to rotate, the pulling device 100 will not be stuck on the pulling handle 021, thereby ensuring that the pulling device 100 can naturally separate from the pulling handle 021 after pushing the pulling handle 021 to the limit distance.

[0030] like Fig. 9 As shown:

[0031] The pulling device 100 includes a rotating handle 110, which is rotatably connected to the bracket 010 through a rotating motor and a reducer, and an extension handle 120 is slidably connected to the rotating handle 110 through an electric push rod, and a rotating push head 130 capable of toggling the pulling handle 021 is arranged on the outer side of the extension handle 120; so that when it is necessary to toggle the pulling gear 020 through the pulling device 100, the electric push rod can be controlled to shorten, so that the electric push rod drives the extension handle 120 to move to a position with the same length as the pulling handle 021, so that the rotating push head 130 can contact the pulling handle 021 and toggle the corresponding pulling gear 020 to rotate; when it is not necessary to toggle the pulling gear 020 through the pulling device 100, the electric push rod can be controlled to extend, so that the electric push rod drives the extension handle 121 to rotate. 0 moves to a position exceeding the length of the trigger handle 021, so that the rotating push head 130 cannot contact the trigger handle 021, and the rotating push head 130 cannot rotate the trigger gear 020 through the trigger handle 021, so as to achieve the same effect as closing the trigger device 100, so that the flushing nozzle 060 can continue to stay in the corresponding position to spray coolant, which is convenient for processing personnel to observe the processing area, that is, the operation mode of the circulation system is controlled by controlling the electric push rod, and the service life of the rotating motor is avoided when the rotating motor is frequently started and closed. At the same time, the circulation system is controlled by multiple controllable operation modes, which can improve the effect of stable operation of the circulation system, improve the control ability of the circulation system, and reduce the possibility of abnormal operation caused by failure of a single operation mode.

[0032] Further:

[0033] The rotating push head 130 is rotatably connected to the outside of the extension handle 120, so that after the rotating push head 130 contacts the trigger handle 021, the rotating push head 130 can rotate on the extension handle 120, thereby avoiding friction between the rotating push head 130 and the contact surface of the trigger handle 021 during rotation, ensuring the stable rotation of the trigger gear 020 and avoiding jamming.

[0034] like Figure 4 and Fig.10 As shown:

[0035] An avoidance groove 022 is provided on the inner side of the pulling handle 021, so that when the pulling gear 020 does not need to be turned, the pulling device 100 can continue to shorten the electric push rod, so that the electric push rod drives the extension handle 120 to move to a position corresponding to the avoidance groove 022, thereby reducing the space required for the rotating motor to drive the pulling device 100 to rotate when the pulling gear 020 does not need to be turned.

[0036] like Figure 7 As shown:

[0037] The rotating sealing block 220 is also connected to two outer baffles 222 by screws, and the two outer baffles 222 are respectively arranged on both sides of the sealing push piece 221, so that when the rotating sealing block 220 rotates on the flushing sealing shell 210, the outer baffles 222 can first contact with the air guide block 050, thereby avoiding damage caused by direct contact between the sealing push piece 221 and the air guide block 050, which in turn causes the sealing push piece 221 to be unable to fit with the flushing sealing shell 210, thereby causing the sealing push piece 221 to be unable to be pushed by compressed air. At the same time, the setting of the outer baffles 222 can ensure that after the rotating sealing block 220 is pushed to the final position by the compressed air, there is a certain gap between the sealing push piece 221 and the air guide block 050, thereby ensuring that when it is necessary to inject compressed air between the air guide block 050 and the sealing push piece 221 through the Y-shaped airway 041, the Y-shaped airway 041 can be located between the air guide block 050 and the sealing push piece 221.

[0038] like Figure 5-6 As shown:

[0039] The flushing shell 210 is rotatably connected to one end of two pressure strips 212 through a torsion spring, and the two pressure strips 212 are respectively arranged on the upper sides of the two air outlets 211, and the other ends of the two pressure strips 212 are welded with conical plugs 213, and the two conical plugs 213 are respectively arranged in the two air outlets 211, and the air guide block 050 is provided with air passages corresponding to the two air outlets 211; so that when the air guide block 050 moves to a certain side, the air guide block 050 can push the conical plug 213, thereby causing the pressure strip 212 to rotate on the flushing shell 210 and compressing the torsion spring at the same time, and at this time, the air passage on the air guide block 050 is connected with the air outlet 211, so that the air in the outer cavity can escape through the air outlet 211; when the air guide block 050 leaves this position, the air passage on the air guide block 050 is misaligned with the air outlet 211, so that The air in the outer cavity cannot escape through the air outlet 211. At the same time, the torsion spring can drive the pressure strip 212 to reset, thereby allowing the conical plug 213 to slide back into the air outlet 211 and be pressed against the air outlet 211 by the compressed air, thereby closing the air outlet 211 and further preventing the compressed air from escaping from the air outlet 211. At the same time, after the air guide block 050 moves to the other side, the airway on the air guide block 050 corresponding to the air outlet 211 on the other side can be connected to the air outlet 211, thereby allowing the compressed air to escape from the air outlet 211 on the other side. That is, the movement of the air guide block 050 can change the sealing of the cavities on both sides of the outer cavity with the sealing push piece 221 as the dividing end, thereby ensuring that when the sealing push piece 221 is pushed to move by compressed air, the residual air in the outer cavity will not affect the movement.

[0040] Further:

[0041] Both of the two air outlets 211 are provided with chamfers, and the conical plug 213 is conical on the side that fits with the air outlet 211, and the pressure strip 212 is a metal sheet; thereby ensuring that the air guide block 050 can smoothly push the conical plug 213 to move through the chamfered inclined surface, and at the same time, after being reset, the conical plug 213 can be naturally pressed into the interior of the air outlet 211 through the elasticity of the metal sheet itself, thereby ensuring that the conical plug 213 can accurately close the air outlet 211.

[0042] like Figure 3 As shown:

[0043] The upper side of the flushing nozzle 060 is provided with a bendable bellows 061, so that the angle of spraying the coolant to the processing area can be adjusted through the bellows 061, so as to avoid the circulation system and the processing area being too close to affect the observation or processing.

[0044] A numerically controlled machine tool is provided with the numerically controlled machine tool coolant circulation system.

Claims

1. A coolant circulation system for a CNC machine tool, characterized in that: The invention comprises a support (000), wherein a bracket (010) is fixedly connected to the inner side of the support (000), a pull device (100) is rotatably connected to the rear side of the bracket (010), two mutually meshing pull gears (020) are rotatably connected to the front side of the bracket (010), a flushing part (200) is installed on the upper side of the support (000), and the flushing part (200) comprises a flushing shell (210), the flushing shell (210) is fixedly connected to the support (000), a rotating seal block (220) is rotatably connected inside the flushing shell (210), a flushing nozzle (060) is fixedly connected to the upper side of the rotating seal block (220), a sealing push piece (221) is fixedly connected to the lower side of the rotating seal block (220), an air guide sealing block (040) is fixedly connected to the lower side of the flushing shell (210), and the air guide sealing block (0 An air guide block (050) slides on the upper side of the air guide sealing block (040), and a lower moving block (230) slides on the lower side of the air guide sealing block (040). The air guide block (050) and the lower moving block (230) are fixedly connected by a support rod. A lever rack (030) is fixedly connected to the lower side of the lower moving block (230). A flow guide block (250) is also fixedly connected to the inside of the flushing shell (210). The flow guide block (250) is arranged on the inner side of the rotating sealing block (220). The lever rack (030) is meshed with the lever gear (020) on the left side. An air guide block (050) is fixedly connected to the upper side of the lever rack (030). A Y-shaped air duct (041) is provided on the air guide sealing block (040), and two air outlets (211) corresponding to the Y-shaped air duct (041) are provided on the flushing shell (210).

2. A CNC machine tool coolant circulation system according to claim 1, characterized in that: The two pull gears (020) are both fixedly connected with a pull handle (021), and the outer edge of the pull handle (021) is circular.

3. A CNC machine tool coolant circulation system according to claim 2, characterized in that: The pulling device (100) comprises a rotating handle (110), the rotating handle (110) is rotatably connected to the bracket (010), an extension handle (120) is slidably connected to the rotating handle (110), and a rotating push head (130) capable of moving the pulling handle (021) is arranged outside the extension handle (120).

4. A CNC machine tool coolant circulation system according to claim 3, characterized in that: The rotating pusher head (130) is rotatably connected to the outside of the extension handle (120).

5. A CNC machine tool coolant circulation system according to claim 3, characterized in that: An escape groove (022) is provided inside the trigger handle (021).

6. A coolant circulation system for a CNC machine tool according to claim 1, characterized in that: The rotating sealing block (220) is also fixedly connected to two outer blocking sheets (222), and the two outer blocking sheets (222) are respectively arranged on both sides of the sealing push sheet (221).

7. A CNC machine tool coolant circulation system according to claim 1, characterized in that: The flushing shell (210) is rotatably connected to one end of two pressure strips (212), the two pressure strips (212) are respectively arranged on the upper side of the two air outlets (211), the other ends of the two pressure strips (212) are both fixedly connected to conical plugs (213), and the two conical plugs (213) are respectively arranged in the two air outlets (211).

8. A CNC machine tool coolant circulation system according to claim 7, characterized in that: Both of the two air outlets (211) are provided with chamfers, the conical plug (213) and the air outlet (211) are in a conical shape at the side in contact with the air outlet (211), and the pressure strip (212) is a metal sheet.

9. A CNC machine tool coolant circulation system according to claim 1, characterized in that: The upper side of the flushing nozzle (060) is provided with a bendable and shapeable bellows (061).

10. A numerically controlled machine tool, characterized in that: The CNC machine tool is installed with a CNC machine tool coolant circulation system as claimed in any one of claims 5 to 9.

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