Numerical control milling machine with dust removal structure

CN224764383UActive Publication Date: 2026-09-18JIANGSU TAIQUN PRECISION CNC EQUIP CO LTD
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Patent Information

Application Number
CN202522255891.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-18
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0002]在机械加工领域,数控铣床凭借高精度、高效率的加工优势,被广泛应用于金属、非金属材料的切削加工,然而,数控铣床在对工件进行铣削、钻孔等作业过程中,会产生大量金属或非金属粉尘及碎屑,这些污染物若不及时处理,会引发一系列问题,严重影响加工环境与生产效率

Benefits of technology

通过数控铣床主体上设置的旋风除尘器搭配抽吸管实现吸尘过程,从而捕捉加工产生的灰尘和碎屑,再通过输送部的第一输送辊、第二输送辊与输送带配合,实现对灰尘和碎屑的分段输送,避免粉尘堆积堵塞,再配合挤压部通过液压缸驱动挤压板,可将粉尘和碎屑压实成块状,减少松散粉尘飞扬,降低二次污染风险,也方便后续集中清理和运输。

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Abstract

The utility model belongs to numerical control milling machine technical field especially relates to a numerical control milling machine with dust removal structure, including numerical control milling machine main part, the one side of numerical control milling machine main part is provided with cyclone dust collector, and the air inlet end of cyclone dust collector is connected with suction pipe, and the lower extreme of cyclone dust collector is provided with casing. Dust removal subassembly, including setting in the conveying part, spraying part and extruding part of casing, the utility model is through the cyclone dust collector of setting on numerical control milling machine main part and the realization of dust absorption process with suction pipe, thereby capture the dust and chippings of processing, and then through the cooperation of the first conveying roller, second conveying roller and conveyer belt of conveying part, realize the segmented conveying of dust and chippings, avoid dust accumulation and block, and then cooperate extruding part and drive extruding plate through hydraulic cylinder, can compact dust and chippings into blockiness, reduce loose dust flying, reduce secondary pollution risk, also convenient subsequent centralized cleaning and transportation.
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Description

Technical Field

[0001] This utility model belongs to the field of CNC milling machine technology, and in particular relates to a CNC milling machine with a dust removal structure. Background Technology

[0002] In the field of machining, CNC milling machines are widely used in the cutting of metal and non-metal materials due to their advantages of high precision and high efficiency. However, during the milling and drilling operations, CNC milling machines generate a large amount of metal or non-metal dust and debris. If these pollutants are not treated in time, they will cause a series of problems and seriously affect the processing environment and production efficiency.

[0003] First, traditional CNC milling machines rely on natural settling or simple exhaust devices to deal with dust. The former cannot quickly remove suspended dust, leading to a deterioration of air quality in the processing area. Long-term inhalation of dust by operators can easily cause respiratory diseases and harm their health. The latter can only remove some dust from the equipment, but it will still cause overall environmental pollution in the workshop, which does not meet the standards of modern industrial green production.

[0004] Secondly, even if some CNC milling machines are equipped with dust collection structures, the collected dust and debris are still stored in a loose state, which is very easy to be thrown again during cleaning and transportation, causing secondary pollution. At the same time, the loose dust has a large volume and low density, occupies a lot of storage space, is not convenient for centralized treatment, and is too cumbersome to clean. Therefore, we propose a CNC milling machine with a dust collection structure. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a CNC milling machine with a dust removal structure, thereby achieving convenient handling of dust and debris generated during CNC milling.

[0006] In view of this, the present invention provides a CNC milling machine with a dust removal structure, including a CNC milling machine body, a cyclone dust collector disposed on one side of the CNC milling machine body, an air inlet end of the cyclone dust collector connected to a suction pipe, a housing disposed at the lower end of the cyclone dust collector, and a dust removal assembly including a conveying section, a spraying section, and an extrusion section disposed within the housing. The conveying section includes a first conveying roller and a second conveying roller disposed on both sides of the inner cavity of the housing. A drive motor is disposed on the rear side of the housing, and the drive end of the drive motor is detachably connected to the second conveying roller. The first conveying roller and the second conveying roller... The outer side of the conveying roller is connected to a conveyor belt for segmented conveying of dust and debris discharged from the cyclone dust collector. The spraying section includes a liquid supply pipe located at the lower end of the cyclone dust collector for spraying an adhesive onto the dust and debris. The extrusion section includes a support frame located at the upper end of the housing. A hydraulic cylinder is located in the middle of the support frame, and an extrusion plate is located at the drive end of the hydraulic cylinder. The extrusion plate is movably connected to the housing and is used to extrude the dust and debris that are segmented and conveyed to the area below the extrusion plate. The position adjustment component is used to adjust the position of the cyclone dust collector on the housing.

[0007] Furthermore, the conveying unit also includes baffles disposed on the conveyor belt, the baffles being detachably connected to the surface of the conveyor belt, and the plurality of baffles being equidistantly distributed among each other.

[0008] Furthermore, the housing has a discharge port on the side away from the suction pipe, and the length of the discharge port is the same as the length of the baffle. A collection box is provided at the lower end of the housing, and the collection box is detachably connected to the main body of the CNC milling machine.

[0009] Furthermore, the end of the liquid supply pipe is connected to an atomizing nozzle, which is located at the connection between the lower end of the cyclone dust collector and the housing.

[0010] Furthermore, the extrusion section also includes a through groove on the housing, the through groove being disposed on the side of the housing away from the suction tube, the size of the extrusion plate being adapted to the size of the through groove, and the extrusion plate being movably connected to the through groove.

[0011] Furthermore, a support plate is provided at the lower end of the extrusion plate, the upper end of the support plate is in contact with the inner side of the conveyor belt, and the two sides of the support plate are respectively fixedly connected to the inner wall of the shell.

[0012] Furthermore, a fixing frame is welded to the upper end of the housing, and a slide rod is welded to the rear side of the fixing frame. A slide groove is provided on one side of the CNC milling machine body, and a lead screw is provided in the inner cavity of the slide groove. The size of the slide rod is adapted to the size of the slide groove, and the slide rod is slidably connected to the slide groove.

[0013] Furthermore, a lead screw sleeve is fixedly installed at one end of the slide bar near the lead screw, and the lead screw and the lead screw sleeve are threadedly connected.

[0014] The beneficial effects of this utility model are: The dust collection process is achieved by using a cyclone dust collector on the main body of the CNC milling machine in conjunction with a suction pipe to capture the dust and debris generated during processing. Then, the dust and debris are transported in sections by the first and second conveyor rollers of the conveying unit and the conveyor belt, which avoids dust accumulation and blockage. In addition, the extrusion unit uses a hydraulic cylinder to drive the extrusion plate to compact the dust and debris into blocks, reducing the loose dust from flying, lowering the risk of secondary pollution, and facilitating subsequent centralized cleaning and transportation. The position adjustment component can flexibly adjust the position of the cyclone dust collector on the housing according to the different sizes of the workpiece being processed, ensuring that the suction end of the cyclone dust collector is always aligned with the dust-generating area of ​​the workpiece being processed, avoiding suction dead zones caused by changes in workpiece size, and significantly improving the suction effect of dust and debris. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of a CNC milling machine with a dust removal structure proposed in this utility model; Figure 2 This is a second-view structural diagram of a CNC milling machine with a dust removal structure proposed in this utility model; Figure 3 This is a schematic diagram of the dust removal component and position adjustment component of a CNC milling machine with a dust removal structure proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the dust removal component of a CNC milling machine with a dust removal structure proposed in this utility model; Figure 5 This utility model proposes a CNC milling machine with a dust removal structure. Figure 4 Enlarged view of point A; The markings in the diagram are as follows: 1. CNC milling machine body; 11. Slide groove; 12. Collection box; 2. Cyclone dust collector; 21. Suction pipe; 22. Housing; 23. First conveyor roller; 24. Conveyor belt; 25. Second conveyor roller; 26. Drive motor; 27. Stop bar; 28. Discharge port; 3. Hydraulic cylinder; 31. Extrusion plate; 32. Support frame; 33. Through groove; 34. Liquid supply pipe; 35. Support plate; 4. Lead screw; 5. Slide bar; 6. Lead screw sleeve; 7. Fixing frame. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0021] Reference Figures 1 to 5 A CNC milling machine with a dust removal structure includes a CNC milling machine body 1, a cyclone dust collector 2 disposed on one side of the CNC milling machine body 1, an air inlet end of the cyclone dust collector 2 connected to a suction pipe 21, a housing 22 disposed at the lower end of the cyclone dust collector 2, and a dust removal assembly including a conveying section, a spraying section, and an extrusion section disposed within the housing 22. The conveying section includes a first conveying roller 23 and a second conveying roller 25 disposed on both sides of the inner cavity of the housing 22. A drive motor 26 is disposed on the rear side of the housing 22, and the drive end of the drive motor 26 is detachably connected to the second conveying roller 25. The outer sides of the first conveying roller 23 and the second conveying roller 25 are connected by a drive motor 26. The device is equipped with a conveyor belt 24 for segmented conveying of dust and debris discharged from the cyclone dust collector 2; a spraying section including a liquid supply pipe 34 located at the lower end of the cyclone dust collector 2 for spraying an adhesive onto the dust and debris; a squeezing section including a support frame 32 located at the upper end of the housing 22, a hydraulic cylinder 3 located in the middle of the support frame 32, and a squeezing plate 31 located at the drive end of the hydraulic cylinder 3, the squeezing plate 31 being movably connected to the housing 22 for squeezing the dust and debris conveyed to the area below the squeezing plate 31 in segments; and a position adjustment component for adjusting the position of the cyclone dust collector 2 on the housing 22.

[0022] When a CNC milling machine is performing machining operations, dust and debris are generated in the workpiece machining area. At this time, the cyclone dust collector 2 is activated, generating negative pressure suction through the air inlet of the cyclone dust collector 2. Since the air inlet is connected to the suction pipe 21, the dust and debris generated during machining can be quickly sucked into the cyclone dust collector 2. Inside the cyclone dust collector 2, the airflow rotates at high speed, using centrifugal force to separate the dust and debris from the air. The separated dust and debris fall from the lower end of the cyclone dust collector 2 into the housing 22 under the action of gravity. The conveying section inside the housing 22 is then activated, and the drive motor 26 drives the second conveyor roller 25 to rotate. Since the first conveyor roller 23 and the second conveyor roller 25 are connected to the outer side of the conveyor belt 24, the second conveyor roller 25 drives the conveyor belt 24 and the first conveyor roller 23 to rotate synchronously through friction. The conveyor belt 24 transports the falling dust and debris in segments according to a set rhythm. Meanwhile, the liquid supply pipe 34 in the spraying section sprays adhesive onto the dust and debris for preliminary bonding treatment. Subsequently, the conveyor belt 24 transports the dust and debris sprayed with adhesive to the area below the extrusion section. After receiving the control signal, the hydraulic cylinder 3 drives the extrusion plate 31 at its drive end to move downward. The extrusion plate 31 and the housing 22 cooperate movably to apply pressure to the dust and debris in the lower section, squeezing them into blocks, which facilitates cleaning by the staff. If the size of the workpiece changes, the position adjustment component is activated, and the position of the housing 22 on the CNC milling machine body 1 is changed by adjusting the structure, thereby driving the cyclone dust collector 2 to move synchronously, so that the air inlet of the cyclone dust collector 2 is always aligned with the dust generation area of ​​the new size workpiece, ensuring continuous and effective suction.

[0023] In the example of this application, the conveying section also includes baffles 27 disposed on the conveyor belt 24. The baffles 27 are detachably connected to the surface of the conveyor belt 24, and the multiple baffles 27 are equidistantly distributed among each other.

[0024] As a preferred example of this utility model, during the conveyor belt 24's transport of dust and debris, the equally spaced baffles 27 on its surface move synchronously with the conveyor belt 24. When dust and debris fall onto the conveyor belt 24, adjacent baffles 27 form independent transport zones, separating the dust and debris within these zones. Simultaneously, the baffles 27 act as a barrier, ensuring that the dust and debris follow the conveyor belt 24 to subsequent processing stations. When wear on the baffles 27 affects their use, the worn baffles 27 can be directly removed from the surface of the conveyor belt 24, replaced with new baffles 27, and reinstalled to ensure the normal transport function of the conveyor belt 24.

[0025] In the example of this application, the housing 22 has a discharge port 28 on the side away from the suction pipe 21, and the length of the discharge port 28 is the same as the length of the baffle 27. The lower end of the housing 22 is provided with a collection box 12, which is detachably connected to the CNC milling machine body 1.

[0026] As a preferred example of this utility model, the dust block, compacted into a block shape by the extrusion section, continues to move along the conveyor belt 24 towards the side of the housing 22 away from the suction pipe 21. Since the length of the discharge port 28 on this side of the housing 22 is the same as the length of the baffle 27, when the conveyor belt 24 moves the dust block to the position of the discharge port 28, the conveying section where the dust block is located is aligned with the discharge port 28. At this time, under the continuous conveying force of the conveyor belt 24 and the gravity of the dust block itself, the dust block directly detaches from the conveyor belt 24 from the discharge port 28 and falls into the collection box 12 below, completing the dust block discharge process.

[0027] In the example of this application, the end of the liquid supply pipe 34 is connected to an atomizing nozzle, which is located in the inner cavity where the lower end of the cyclone dust collector 2 is connected to the housing 22.

[0028] As a preferred example of this utility model, when dust and debris fall from the lower end of the cyclone dust collector 2 into the housing 22 and onto the conveyor belt 24, the liquid supply pipe 34 is opened and conveys the adhesive. The adhesive is atomized into fine droplets through the atomizing nozzle at the end of the liquid supply pipe 34. Since the atomizing nozzle is located at the connection between the lower end of the cyclone dust collector 2 and the housing 22, the atomized adhesive covers the dust and debris that have just fallen into the housing 22, so that the adhesive droplets are in full contact with and adhere to the dust and debris particles, and perform preliminary bonding of the dust and debris to form a mixture that is not easily blown away, thus preparing for the compaction process of the subsequent extrusion section.

[0029] In the example of this application, the extrusion part also includes a through groove 33 on the housing 22. The through groove 33 is disposed on the side of the housing 22 away from the suction tube 21. The size of the extrusion plate 31 is adapted to the size of the through groove 33, and the extrusion plate 31 is movably connected to the through groove 33.

[0030] As a preferred example of this utility model, when the conveyor belt 24 transports the bonded dust and debris to directly below the extrusion plate 31, the controller shuts off the drive motor 26 to stop the conveyor belt 24. Simultaneously, the hydraulic cylinder 3 drives the extrusion plate 31 to move downwards. Since the extrusion plate 31 is sized and movably connected to the through groove 33 on the housing 22, the through groove 33 guides and restricts the movement trajectory of the extrusion plate 31, ensuring that the extrusion plate 31 always moves vertically and presses against the dust and debris below. After extrusion is completed, the hydraulic cylinder 3 drives the extrusion plate 31 to return to its original position, while simultaneously controlling the conveyor belt 24 to continue conveying.

[0031] In the example of this application, a support plate 35 is provided at the lower end of the extrusion plate 31, the upper end of the support plate 35 is in contact with the inner side of the conveyor belt 24, and the two sides of the support plate 35 are fixedly connected to the inner wall of the housing 22 respectively.

[0032] As a preferred example of this utility model, when the extrusion section performs the extrusion operation, the hydraulic cylinder 3 drives the extrusion plate 31 downward to apply pressure to the dust and debris on the conveyor belt 24. At this time, the support plate 35, which is in contact with the inner side of the conveyor belt 24, plays a supporting role. The two sides of the support plate 35 are fixed to the inner wall of the housing 22, and its own position remains fixed. It can withstand the pressure transmitted from the extrusion plate 31 to the conveyor belt 24, preventing the conveyor belt 24 from sinking downward due to excessive pressure, thereby ensuring the extrusion molding effect of dust and debris.

[0033] In the example of this application, a fixing frame 7 is welded to the upper end of the housing 22, and a slide rod 5 is welded to the rear side of the fixing frame 7. A slide groove 11 is provided on one side of the CNC milling machine body 1. A lead screw 4 is provided in the inner cavity of the slide groove 11. The size of the slide rod 5 is adapted to the size of the slide groove 11, and the slide rod 5 is slidably connected to the slide groove 11.

[0034] As a preferred example of this utility model, when it is necessary to adjust the position of the cyclone dust collector 2 according to the workpiece size, the lead screw 4 is rotated. The lead screw 4, in conjunction with the lead screw sleeve 6, drives the slide rod 5 to move, thereby causing the slide rod 5 to slide within the slide groove 11 of the CNC milling machine body 1. Since the slide rod 5 is welded to the fixing frame 7 at the upper end of the housing 22, the sliding of the slide rod 5 drives the fixing frame 7 and the housing 22 to move synchronously, thereby causing the cyclone dust collector 2 to change position. At the same time, the slide groove 11 guides the sliding trajectory of the slide rod 5, preventing the slide rod 5 from deviating during the sliding process and ensuring that the cyclone dust collector 2 always moves in the set direction. In addition, the welded fixing frame 7 and the slide rod 5 have high structural strength and can stably support the weight of the housing 22 and the cyclone dust collector 2, thereby avoiding deformation or damage of components during movement.

[0035] In the example of this application, a lead screw sleeve 6 is fixedly installed at one end of the slide bar 5 near the lead screw 4, and the lead screw 4 and the lead screw sleeve 6 are threadedly connected.

[0036] As a preferred example of this utility model, by controlling the rotation direction of the lead screw 4, the slide bar 5 can be moved forward or backward, thereby adjusting the position of the cyclone dust collector 2; and by controlling the number of rotations of the lead screw 4, the movement distance of the slide bar 5 can be controlled, thus adjusting the position of the cyclone dust collector 2. After adjustment, the self-locking property of the threaded connection keeps the lead screw 4 and the lead screw sleeve 6 relatively fixed, preventing the slide bar 5 from moving on its own under the influence of processing vibration, and ensuring the stability of the position of the cyclone dust collector 2.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A numerical control milling machine with dust removing structure, characterized in that, include: The main body (1) of the CNC milling machine is provided with a cyclone dust collector (2) on one side. The air inlet end of the cyclone dust collector (2) is connected to a suction pipe (21). The lower end of the cyclone dust collector (2) is provided with a shell (22). The dust removal assembly includes a conveying section, a spraying section, and a squeezing section disposed within the housing (22); The conveying unit includes a first conveying roller (23) and a second conveying roller (25) arranged on both sides of the inner cavity of the housing (22). A drive motor (26) is arranged on the rear side of the housing (22). The drive end of the drive motor (26) is detachably connected to the second conveying roller (25). A conveyor belt (24) is connected to the outer side of the first conveying roller (23) and the second conveying roller (25) for segmented conveying of dust and debris discharged from the cyclone dust collector (2). The spraying section includes a liquid supply pipe (34) located at the lower end of the cyclone dust collector (2) for spraying binder onto dust and debris; The extrusion section includes a support frame (32) disposed on the upper end of the housing (22), a hydraulic cylinder (3) is disposed in the middle of the support frame (32), and an extrusion plate (31) is disposed at the driving end of the hydraulic cylinder (3). The extrusion plate (31) is movably connected to the housing (22) and is used to extrude the dust and debris that are transported in sections to the bottom of the extrusion plate (31). A position adjustment assembly is used to adjust the position of the cyclone dust collector (2) on the housing (22).

2. The numerically controlled milling machine with dust removal structure according to claim 1, characterized in that, The conveying unit also includes baffles (27) disposed on the conveyor belt (24), the baffles (27) being detachably connected to the surface of the conveyor belt (24), and the baffles (27) being equidistantly distributed among the baffles (27).

3. The numerically controlled milling machine with dust removal structure according to claim 2, characterized in that, The housing (22) has an outlet (28) on the side away from the suction pipe (21), and the length of the outlet (28) is the same as the length of the baffle (27). The lower end of the housing (22) is provided with a collection box (12), which is detachably connected to the main body (1) of the CNC milling machine.

4. The numerically controlled milling machine with dust removal structure according to claim 3, characterized in that, The end of the liquid supply pipe (34) is connected to an atomizing nozzle, which is located at the connection between the lower end of the cyclone dust collector (2) and the housing (22).

5. The numerically controlled milling machine with dust removal structure according to claim 4, characterized in that, The extrusion section also includes a through groove (33) on the housing (22). The through groove (33) is located on the side of the housing (22) away from the suction tube (21). The size of the extrusion plate (31) is adapted to the size of the through groove (33), and the extrusion plate (31) is movably connected to the through groove (33).

6. The numerically controlled milling machine with dust removal structure according to claim 5, characterized in that, The lower end of the extrusion plate (31) is provided with a support plate (35), the upper end of the support plate (35) is in contact with the inner side of the conveyor belt (24), and the two sides of the support plate (35) are respectively fixedly connected to the inner wall of the shell (22).

7. The numerically controlled milling machine with dust removal structure according to claim 6, characterized in that, A fixing frame (7) is welded to the upper end of the housing (22), and a slide rod (5) is welded to the rear side of the fixing frame (7). A slide groove (11) is provided on one side of the CNC milling machine body (1). A lead screw (4) is provided in the inner cavity of the slide groove (11). The size of the slide rod (5) is adapted to the size of the slide groove (11), and the slide rod (5) is slidably connected to the slide groove (11).

8. The numerically controlled milling machine with dust removal structure according to claim 7, characterized in that, The slide bar (5) is fixedly installed with a screw sleeve (6) at one end near the screw rod (4), and the screw rod (4) is threadedly connected to the screw sleeve (6).