CN108788910B

CN108788910B - Protective door for numerical control machine tool

Info

Publication number: CN108788910B
Application number: CN201810760704.7A
Authority: CN
Inventors: 张明明
Original assignee: Jiaxing Jiuer Technology Co ltd
Current assignee: QINGDAO RUILAIBAO PRECISION INDUSTRY Co.,Ltd.
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2020-12-01
Anticipated expiration: 2038-07-12
Also published as: CN108788910A

Abstract

The invention discloses a protective door for a numerical control machine tool, which comprises a door body, wherein a lubricating oil tank is arranged at the top of the door body, a connecting wheel is arranged in a connecting notch, an adjusting wheel is arranged below the connecting wheel, a moving wheel is arranged below the adjusting wheel, a moving gear is arranged at one side of the connecting plate through a rotating shaft, and a cleaning brush is coaxially arranged below the moving gear. Meanwhile, the noise generated when the movable wheel slides is reduced, and the high-quality workshop environment can be better constructed.

Description

Protective door for numerical control machine tool

Technical Field

The invention relates to the technical field of numerical control machines, in particular to a protective door for a numerical control machine.

Background

The numerical control machine tool is a numerical control machine tool for short, is an automatic machine tool provided with a program control system, can make the machine tool act and machine parts according to a programmed program, and integrates the latest technologies of machinery, automation, computers, measurement, microelectronics and the like, compared with the traditional machine tool, the numerical control machine tool has the advantages of high flexibility, high machining precision, stable and reliable machining quality, high productivity and improvement on labor conditions, a machine tool host is a main body of the numerical control machine tool and comprises machine parts such as a machine body, a protective door, a base, a stand column, a cross beam, a sliding seat, a workbench, a spindle box, a feeding mechanism, a tool rest, an automatic tool changer and the like, wherein the protective door plays a certain installation protection role in the whole numerical control machine tool, prevents chips generated during the working of the numerical control machine tool and water used for cooling from splashing to the body of an observer, and reduces the conditions of moisture of clothes of the numerical control machine tool, however, the protective door in the market at present has a simple structure, after long-time use, the friction force is increased in the sliding process, the protective door slides slowly, the noise is increased during sliding, the construction of high-quality workshop environment is not facilitated, water liquid used for cooling is easy to adhere to the surface of observation glass in the middle of the protective door, the glass surface is blurred, so that an observer cannot effectively observe the working state of a numerical control machine tool through the observation glass, the accidental conditions in the cutting process are difficult to find in time, the numerical control machine tool stops working in time, the cutting tools and workpieces are damaged, the rubber gasket is mounted on the side wall of the existing protective door, the rubber gasket is difficult to effectively remove after being damaged, meanwhile, the mounting process of the rubber gasket is complicated, and the rubber gasket is not easy to replace quickly to ensure that the protective door can be, when the guard gate is damaged or needs to be overhauled, need take out guard gate top and bottom from the spout simultaneously, it moves the process and not only needs the carrier to have good physical power, but also takes place easily because of the carrier is not taken steadily, lead to the condition that guard gate and fuselage collision damage, be unfavorable for the quick dismantlement maintenance of guard gate, digit control machine tool when using, the spout of guard gate bottom is lower because of the position, often has the dust, the entering of cutting piece, lead to the guard gate to be difficult to the condition of effective slip to take place.

Disclosure of Invention

The invention provides a protective door for a numerical control machine tool, which can effectively solve the problems that the protective door in the current market proposed in the background technology has simple structure, after long-time use, the friction force is increased in the sliding process, the protective door slides slowly, the noise is increased during sliding, the high-quality workshop environment is not favorable for building, water liquid used for cooling is easy to adhere to the surface of observation glass in the middle of the protective door, the surface of the glass is fuzzy, so that an observer cannot effectively observe the working state of the numerical control machine tool through the observation glass, the accidental conditions in the cutting process are difficult to find in time and the numerical control machine tool stops working in time, the damage to a cutting tool and a workpiece is caused, the side wall of the protective door is prevented from directly colliding with a machine body, the side wall of the existing protective door is provided with a rubber gasket, but the rubber gasket is difficult to, be unfavorable for quick replacement to guarantee that the guard gate can continue to use, when the guard gate is damaged or need overhaul, need take out the guard gate top and bottom from the spout simultaneously, it moves the process and not only needs the carrier to have good physical power, but also take place easily because of the carrier is not taken steadily, lead to the condition that guard gate and fuselage collision damaged, be unfavorable for the quick dismantlement maintenance of guard gate, the digit control machine tool is when using, the spout of guard gate bottom is lower because of the position, often have the dust, the piece of cutting gets into, lead to the guard gate to be difficult to the condition emergence of effective slip.

In order to achieve the purpose, the invention provides the following technical scheme: a protective door for a numerical control machine tool comprises a door body, wherein a lubricating oil tank is installed at the top of the door body, an extrusion plate is installed inside the lubricating oil tank, an adjusting screw hole is formed in the middle of the extrusion plate, a screw rod is installed in the middle of the adjusting screw hole, a ratchet mechanism is installed at the position, located on the outer side of the lubricating oil tank, of one side of the screw rod and comprises an installation disc, an installation frame, an adjusting clamping plate and an adjusting spring, the ratchet mechanism is installed on one side of the screw rod through the installation disc, the installation frame is evenly installed on the side surface of the installation disc, the adjusting clamping plate is installed between the installation frames through a rotating shaft, the adjusting spring is installed on the surface of the bottom of the lubricating oil tank, a hollow shaft is installed at the position, located on, the top of the door body is provided with a mounting groove, a connecting notch is formed in the position, corresponding to the liquid outlet hole, of the top of the mounting groove, a connecting wheel is installed inside the connecting notch, an adjusting wheel is installed below the connecting wheel, and a moving wheel is installed below the adjusting wheel;

mounting holes are symmetrically formed in two sides of the middle of the door body, protection mechanisms are mounted on two sides of the door body through the mounting holes, observation glass is mounted in the middle of the door body, racks are mounted on the inner side of the door body and at positions corresponding to the positions above and below the observation glass, a connecting plate is mounted on one side of each rack, a moving gear is mounted on one side of each connecting plate through a rotating shaft, and a cleaning brush is coaxially mounted below each moving gear;

the dustproof mechanism is installed on the outer surface of the lower portion of the door body, the supporting cavity is formed in the lower portion of the door body, a supporting rack is installed inside the supporting cavity, supporting pad feet are installed at the bottom of the supporting rack, a power gear is installed on one side of the supporting rack, a vertical shaft is installed in the middle of the power gear, a cross rod is installed at one end of the vertical shaft, a fixing rod is installed at the position, corresponding to the upper portion of the vertical shaft, of the outer side of the door body, and limiting holes are formed in.

Preferably, the protection mechanism includes installation splint, installation piece, bolt, sucking disc and installation screw, the installation piece is installed to the corresponding mounting hole position department of installation splint inboard surface, the bolt is evenly installed in the installation splint outside, the sucking disc is installed to bolt one side, the installation screw has been seted up to the corresponding bolt position play of sucking disc one side.

Preferably, dustproof mechanism includes dry box, gauze and dustproof piece, the gauze is installed through fixed the knot in dry box bottom, the dustproof piece is installed in the dry box outside.

Preferably, one end of the adjusting spring is fixedly connected with the bottom surface of the adjusting clamping plate, and the other end of the adjusting spring is fixedly connected with the side surface of the mounting plate.

Preferably, the side surface of the hollow shaft is attached to the side surface of the connecting wheel, the side surface of the connecting wheel is attached to the side surface of the adjusting wheel, and the side surface of the adjusting wheel is attached to the side surface of the moving wheel.

Preferably, a limiting baffle is arranged at the position, corresponding to the outer side of the lubricating oil tank, of the top of the door body.

Preferably, the number of the supporting racks is two.

Preferably, the inner side surface of the mounting splint is coated with hydrophobic rubber.

Preferably, the inside of the drying box is filled with activated carbon particles.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:

1. sliding friction when removing the wheel and removing the guard gate turns into rolling friction, thereby reach the resistance that receives when reducing the guard gate and removing, lubricating oil of lubricating-oil tank passes through the play liquid hole discharge of hollow shaft simultaneously, effectively adhere to the regulating wheel and remove the wheel surface, make and remove the wheel and wrap up all the time there is lubricating oil when sliding side surface, the frictional force that receives when making the guard gate remove is littleer, the promotion of the guard gate of being convenient for, reduce the noise that produces when removing the wheel and slide simultaneously, be convenient for better construction high-quality workshop environment.

2. The pulling connecting plate for the removal gear rolls along the rack, and removal gear below coaxial arrangement has the cleaning brush to carry out rotary motion along with the roll of removal gear, makes the effectual clearance of cleaning brush observe the glass internal surface, and the clearance is attached to water liquid and the piece of observing the glass surface, the operating condition of the observation digit control machine tool that the observer of being convenient for is better.

3. Original protective action is realized through the sucking disc of installation splint one side, and the sucking disc is through installation screw and bolt fixed connection simultaneously, and the quick dismantlement of being convenient for is changed, has solved the loaded down with trivial details problem of current rubber gasket change flow to the inside air escape back of sucking disc, under the effect of atmospheric pressure, make the lateral wall of guard gate hug closely on the fuselage, reduce rocking in the guard gate use.

4. The limiting pin in the limiting hole is taken down, the cross rod is rotated, the vertical shaft drives the power gear to rotate, the power gear drives the supporting rack to move downwards, the supporting pad foot stretches out from the supporting cavity, the supporting function is achieved, the supporting pad foot is used as the axis to swing the protective door, the moving wheel is taken out from the sliding groove in the top of the machine body, the problem that the protective door is inconvenient to operate when the existing protective door is detached is solved, the top and the bottom of the protective door need to be taken out from the sliding groove simultaneously, and the protective door is convenient to detach and overhaul quickly.

5. The dustproof sheet is installed to the dry box one side of the installation of door body bottom, effectively reduces dust and cutting piece and enters into the spout of fuselage bottom, avoids the guard gate to be difficult to the condition emergence of effective slip, and the drier in the dry box can the water vapor of active absorption guard gate bottom simultaneously, avoids the condition emergence of guard gate bottom corrosion damage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the moving gear of the present invention;

FIG. 3 is a schematic view of the installation structure of the extrusion plate of the present invention;

FIG. 4 is a schematic structural view of region A of the present invention;

FIG. 5 is a schematic view of the power gear mounting structure of the present invention;

FIG. 6 is a schematic structural view of the dust-proof mechanism of the present invention;

FIG. 7 is a schematic structural view of the guard mechanism of the present invention;

FIG. 8 is a schematic structural view of the ratchet mechanism of the present invention;

reference numbers in the figures: 1. a door body; 2. a lubricating oil tank; 3. a pressing plate; 4. adjusting the screw hole; 5. a screw; 6. a ratchet mechanism; 601. mounting a disc; 602. a mounting frame; 603. adjusting the clamping plate; 604. adjusting the spring; 7. a hollow shaft; 8. a liquid outlet hole; 9. an adjusting gear; 10. mounting grooves; 11. a connection notch; 12. a connecting wheel; 13. an adjustment wheel; 14. a moving wheel; 15. mounting holes; 16. a protection mechanism; 1601. installing a clamping plate; 1602. mounting blocks; 1603. a bolt; 1604. a suction cup; 1605. mounting a screw hole; 17. observing glass; 18. a rack frame; 19. a connecting plate; 20. a moving gear; 21. a cleaning brush; 22. a dust-proof mechanism; 2201. drying the box; 2202. a screen; 2203. a dust-proof sheet; 23. a support chamber; 24. a support rack; 25. supporting the foot pad; 26. a power gear; 27. a vertical shaft; 28. a cross bar; 29. fixing the rod; 30. and a limiting hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-8, the invention provides a technical scheme, a protective door for a numerical control machine tool, comprising a door body 1, a lubricating oil tank 2 is installed on the top of the door body 1, in order to ensure the stability of the lubricating oil tank 2 after installation and avoid the lubricating oil tank 2 from shaking at will, a limit baffle is installed on the top of the door body 1 corresponding to the outer side position of the lubricating oil tank 2, an extrusion plate 3 is installed inside the lubricating oil tank 2, an adjusting screw hole 4 is opened in the middle of the extrusion plate 3, a screw rod 5 is installed in the middle of the adjusting screw hole 4, a ratchet mechanism 6 is installed on one side of the screw rod 5 at the outer side position of the lubricating oil tank 2, the ratchet mechanism 6 comprises a mounting plate 601, a mounting frame 602, an adjusting clamping plate 603 and an adjusting spring 604, the ratchet mechanism 6 is installed on one side of the, an adjusting spring 604 is arranged on the bottom surface of the adjusting clamping plate 603, in order to ensure that the adjusting clamping plate 603 returns to the original position under the action of the adjusting spring 604, one end of the adjusting spring 604 is fixedly connected with the bottom surface of the adjusting clamping plate 603, the other end of the adjusting spring 604 is fixedly connected with the side surface of the mounting plate 601, a hollow shaft 7 is arranged at the bottom of the lubricating oil tank 2 at the same side position as the mounting plate 601, liquid outlet holes 8 are uniformly arranged on the side surface of one end of the hollow shaft 7, an adjusting gear 9 is arranged at the middle part of the hollow shaft 7 corresponding to the position of the mounting plate 601, a mounting groove 10 is arranged at the top of the door body 1, a connecting notch 11 is arranged at the top of the mounting groove 10 corresponding to the position of the liquid outlet hole 8, a connecting wheel 12 is arranged in the connecting notch 11, an adjusting wheel 13 is arranged, the side surface of the hollow shaft 7 is attached to the side surface of the connecting wheel 12, the side surface of the connecting wheel 12 is attached to the side surface of the adjusting wheel 13, and the side surface of the adjusting wheel 13 is attached to the side surface of the moving wheel 14.

The middle of the door body 1 is symmetrically provided with mounting holes 15 at both sides, the two sides of the door body 1 are provided with the protection mechanisms 16 through the mounting holes 15, each protection mechanism 16 comprises a mounting clamp 1601, a mounting block 1602, bolts 1603, suckers 1604 and mounting screw holes 1605, the mounting block 1602 is mounted on the inner side surface of the mounting clamp 1601 corresponding to the mounting holes 15, in order to facilitate the inner wall of the mounting clamp 1601 to better adhere to the side wall of the door body 1 and reduce the invasion of water vapor, so as to ensure that the mounting clamp 1601 is not damaged by moisture after being fixed, the inner side surface of the mounting clamp 1601 is coated with hydrophobic rubber, the outer side of the mounting clamp 1601 is uniformly provided with the bolts 1603, one side of each bolt 1603 is provided with a mounting screw hole 1605 corresponding to the position of each bolt 1603, the middle of the door body 1 is provided with observation glass 17, and racks 18 are, a connecting plate 19 is arranged on one side of the rack 18, a moving gear 20 is arranged on one side of the connecting plate 19 through a rotating shaft, and a cleaning brush 21 is coaxially arranged below the moving gear 20.

The outer surface of the lower part of the door body 1 is provided with a dustproof mechanism 22, the dustproof mechanism 22 comprises a drying box 2201, a gauze 2202 and a dustproof sheet 2203, the bottom of the drying box 2201 is provided with the gauze 2202 through a fixing buckle, in order to effectively absorb water vapor below the door body 1, activated carbon particles are filled in the drying box 2201, a dustproof sheet 2203 is arranged on the outer side of the drying box 2201, a supporting cavity 23 is formed in the lower portion of the door body 1, a supporting rack 24 is arranged in the supporting cavity 23, a supporting pad foot 25 is arranged at the bottom of the supporting rack 24, in order to ensure that the two sides of the door body 1 are supported by the supporting pads 25 and the door body 1 is stably lifted, the number of the supporting racks 24 is two, the power gear 26 is installed on one side of the supporting racks 24, the vertical shaft 27 is installed in the middle of the power gear 26, the cross rod 28 is installed at one end of the vertical shaft 27, the fixing rod 29 is installed on the outer side of the door body 1 corresponding to the upper position of the vertical shaft 27, and the limiting holes 30 are formed in one side of the cross rod 28 and the upper end of the fixing.

The working principle and the using process of the invention are as follows: when the protective door is used, the mounting block 1602 is mounted in the mounting hole 15, so that the protective mechanism 16 can be stably mounted on two sides of the door body 1, when the protective door is in contact with the body, after air in the suction cup 1604 is exhausted, under the action of atmospheric pressure, the side wall of the protective door is tightly attached to the body, so that the shaking of the door body 1 in the use process is reduced, meanwhile, the suction cup 1604 is mounted on the bolt 1603 through the mounting screw hole 1605, the rapid dismounting and replacement are convenient, the problem of complex replacement process of the existing rubber gasket is solved, the dustproof sheet 2203 mounted on the outer side of the drying box 2201 at the lower part of the door body 1 can effectively reduce dust and cutting debris from entering a sliding groove at the bottom of the body, the situation that the protective door is difficult to effectively slide is avoided, meanwhile, the drying agent in the drying box 2201 can effectively absorb water vapor at the bottom of the protective door through the gauze, when the protective door moves, a moving wheel 14 is installed in an installation groove 10 formed in the top of a door body 1, the moving wheel 14 is in contact with a sliding groove in the top of a machine body to roll, sliding friction of the existing protective door is converted into rolling friction, and therefore the purpose of reducing the moving resistance of the protective door is achieved, meanwhile, the side surface of the moving wheel 14 is attached to the side surface of an adjusting wheel 13, the side surface of the adjusting wheel 13 is attached to the side surface of a connecting wheel 12, the side surface of the connecting wheel 12 is attached to the side surface of a hollow shaft 7, so that the moving wheel 14 can effectively drive the hollow shaft 7 to rotate while rotating, an adjusting gear 9 installed in the middle of the outer side of the hollow shaft 7 rotates along with the hollow shaft 7, when the moving wheel 14 drives the hollow shaft 7 to rotate clockwise, the gear teeth of the adjusting gear 9 extrude one side of an adjusting clamping plate 603, when the moving wheel 14 drives the hollow shaft 7 to rotate anticlockwise, the gear teeth of the adjusting gear 9 clamp one side of the adjusting clamping plate 603, so that the adjusting spring 604 extends, at this time, the adjusting gear 9 can effectively drive the mounting plate 601 and the screw rod 5 to rotate, the extrusion plate 3 inside the lubricating oil tank 2 is mounted on the screw rod 5 through the adjusting screw hole 4, when the screw rod 5 rotates, under the matching of the internal thread of the adjusting screw hole 4 and the screw rod 5, the extrusion plate 3 slowly moves and extrudes lubricating oil to flow into the hollow shaft 7, and finally the lubricating oil is discharged through the liquid outlet hole 8 and drips onto the surface of the connecting wheel 12, through the contact of the side surfaces of the connecting wheel 12 and the adjusting wheel 13, the side surfaces of the adjusting wheel 13 and the moving wheel 14 are contacted, so that the lubricating oil finally wraps the moving wheel 14, the friction force borne by the moving door is smaller when the moving door, the pushing of the protecting door is convenient, and the, the high-quality workshop environment is conveniently and better constructed, the ratchet mechanism 6 can effectively ensure that the screw rod 5 rotates in one direction, the situation that the extrusion plate 3 moves back and forth is avoided, the lubricating oil can be stably extruded into the hollow shaft 7, when more water stains and cutting scraps are adhered to the surface of the observation glass 17, the connecting plate 19 is pushed and pulled, the movable gear 20 rolls back and forth along the gear teeth on the rack frame 18, the cleaning brush 21 coaxially arranged below the movable gear 20 rotates along with the rolling of the movable gear 20, the inner surface of the observation glass 17 is effectively cleaned by the cleaning brush 21, the water stains and the scraps adhered to the surface of the observation glass 17 are cleaned, an observer can better observe the working state of the numerical control machine, the limiting pin in the limiting hole 30 is taken down, the transverse rod 28 is rotated, the vertical shaft 27 drives the power gear 26 to rotate, the power gear 26 is meshed with the supporting rack 24 and drives the supporting rack 24 to move downwards, the supporting foot pad 25 extends out of the supporting cavity 23, the limiting pin fixing rod 29 and the cross rod 28 are recycled, the supporting rack 24 and the supporting foot pad 25 are enabled to stably play a supporting role, the protective door swings by taking the supporting foot pad 25 as an axis, the moving wheel 14 is taken out of the chute in the top of the body, the supporting foot pad 25 in the bottom of the door body 1 is taken out of the chute in the bottom of the body, the protective door can be detached, the problem that the top and the bottom of the protective door need to be taken out of the chute simultaneously in the detaching process of the existing protective door is solved, operation is inconvenient, and the protective door is convenient to detach and overhaul quickly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a guard gate for digit control machine tool, includes door body (1), its characterized in that: lubricating oil tank (2) is installed at the top of the door body (1), an extrusion plate (3) is installed inside the lubricating oil tank (2), an adjusting screw hole (4) is formed in the middle of the extrusion plate (3), a screw rod (5) is installed in the middle of the adjusting screw hole (4), a ratchet mechanism (6) is installed at the position, located on the outer side of the lubricating oil tank (2), of one side of the screw rod (5), the ratchet mechanism (6) comprises a mounting disc (601), a mounting frame (602), an adjusting clamping plate (603) and an adjusting spring (604), the ratchet mechanism (6) is installed on one side of the screw rod (5) through the mounting disc (601), the mounting frame (602) is evenly installed on the side surface of the mounting disc (601), the adjusting clamping plate (603) is installed between frame bodies of the mounting frame (602) through a rotating shaft, the adjusting, a hollow shaft (7) is mounted at the same side position of the bottom of the lubricating oil tank (2) and the mounting disc (601), liquid outlet holes (8) are uniformly formed in the side surface of one end of the hollow shaft (7), an adjusting gear (9) is mounted at the position, corresponding to the mounting disc (601), of the middle of the hollow shaft (7), a mounting groove (10) is formed in the top of the door body (1), a connecting notch (11) is formed in the position, corresponding to the liquid outlet holes (8), of the top of the mounting groove (10), a connecting wheel (12) is mounted inside the connecting notch (11), an adjusting wheel (13) is mounted below the connecting wheel (12), and a moving wheel (14) is mounted below the adjusting wheel (13;

the inner side and the outer side of the middle of the door body (1) are symmetrically provided with mounting holes (15), two sides of the door body (1) are provided with protective mechanisms (16) through the mounting holes (15), the middle of the door body (1) is provided with observation glass (17), rack frames (18) are respectively arranged at the corresponding positions of the inner side of the door body (1) and the positions above and below the observation glass (17), one side of each rack frame (18) is provided with a connecting plate (19), one side of each connecting plate (19) is provided with a movable gear (20) through a rotating shaft, and a cleaning brush (21) is coaxially arranged below each movable gear (20);

the utility model discloses a dustproof structure, including door body (1), support cavity (23), support rack (23) internally mounted have support rack (24), support rack (24) bottom is installed and is supported and fill up foot (25), support rack (24) one side and install power gear (26), power gear (26) mid-mounting has vertical scroll (27), horizontal pole (28) are installed to vertical scroll (27) one end, the corresponding vertical scroll (27) top position department in the door body (1) outside installs dead lever (29), spacing hole (30) have all been seted up to horizontal pole (28) one side and dead lever (29) upper end.

2. The protective door for the numerical control machine tool is characterized in that the protective mechanism (16) comprises an installation clamping plate (1601), an installation block (1602), a bolt (1603), a suction cup (1604) and an installation screw hole (1605), the installation block (1602) is installed at the position, corresponding to the installation hole (15), of the inner side surface of the installation clamping plate (1601), the bolt (1603) is evenly installed on the outer side of the installation clamping plate (1601), the suction cup (1604) is installed on one side of the bolt (1603), and the installation screw hole (1605) is formed in one side of the suction cup (1604) corresponding to the bolt (1603).

3. The protective door for the numerical control machine tool is characterized in that the dustproof mechanism (22) comprises a drying box (2201), a screen (2202) and a dustproof sheet (2203), the screen (2202) is installed at the bottom of the drying box (2201) through a fixing buckle, and the dustproof sheet (2203) is installed on the outer side of the drying box (2201).

4. The guard door for the numerical control machine tool according to claim 1, characterized in that one end of the adjusting spring (604) is fixedly connected with the bottom surface of the adjusting clamping plate (603), and the other end of the adjusting spring (604) is fixedly connected with the side surface of the mounting plate (601).

5. The guard door for the numerical control machine tool according to claim 1, characterized in that the side surface of the hollow shaft (7) is attached to the side surface of the connecting wheel (12), the side surface of the connecting wheel (12) is attached to the side surface of the adjusting wheel (13), and the side surface of the adjusting wheel (13) is attached to the side surface of the moving wheel (14).

6. The protective door for the numerical control machine tool according to claim 1, characterized in that a limiting baffle is installed at a position corresponding to the outer side of the lubricating oil tank (2) on the top of the door body (1).

7. Guard door for numerically controlled machine tools according to claim 1, characterised in that the number of supporting racks (24) is set to two.

8. The guard door for the numerical control machine tool as claimed in claim 2, wherein the inner side surface of the mounting splint (1601) is coated with hydrophobic rubber.

9. The guard door for numerical control machine tool according to claim 3, characterized in that the inside of the drying box (2201) is filled with activated carbon particles.