Metal product dustproof assembly for numerical control machine tool

Abstract

The utility model relates to the related technical field of numerical control machine tools, in particular to a metal product dustproof assembly for a numerical control machine tool, which comprises a machine tool body, a workbench, a dustproof plate, a chuck, a tool apron, a dust falling assembly, a driving assembly, a blanking port and a waste storage box body. According to the metal product dustproof assembly for the numerical control machine tool, in the machining process of the machine tool, the chuck and the tool apron on the workbench complete the machining action on a workpiece, generated dust and cuttings are subjected to dust falling through the dust falling assembly and conveyed to the waste storage box body, and the dustproof plate protects the machine tool body against pollution of the dust and the cuttings; and workpiece residues can conveniently flow into the waste storage box body through the discharging opening. Therefore, through the synergistic effect of the chuck, the tool apron, the dust falling assembly, the driving assembly, the discharging opening and the waste storage box body, cleaning and high efficiency in the machining process are achieved, sanitation and safety of the operation environment are guaranteed while the working efficiency is improved, and the production experience of workers is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool related technical field, especially a metal product dustproof subassembly for numerical control machine tool. BACKGROUND

[0002] As the key equipment of modern industrial production, numerical control machine tools are crucial for the application of high-precision machined parts. However, the working environment of numerical control machine tools is exposed to dust, debris and other external environmental pollution all year round, which can significantly affect the motion accuracy of the machine tool and the service life of mechanical parts, and even cause safety hazards. Therefore, effectively preventing environmental pollution inside the machine tool has become a key issue to ensure its long-term stable operation and improve product quality.

[0003] Traditional dustproof measures for numerical control machine tools mainly rely on simple sealing structures and ventilation systems, which often cannot completely isolate external environmental pollution and have poor heat dissipation and are prone to dust accumulation.

[0004] Although existing metal product dustproof assemblies have certain advantages in terms of material and structure, they are mostly designed with ventilation as the core, making it difficult to effectively block the entry of small particles and having poor integration with the machine tool structure. SUMMARY

[0005] The utility model solves the problems in the related art and proposes a metal product dustproof assembly for numerical control machine tools. By setting a dustproof plate, a blanking port and a waste storage box, it effectively solves the problems of incomplete protection of traditional machine tools, easy scattering of dust and complex cleaning, and achieves comprehensive protection of the workbench and effective collection of chips. During the machining process of the machine tool, the chuck and tool holder on the workbench complete the machining action on the workpiece, and the dust and chips generated are reduced by the dust reduction assembly and sent to the waste storage box. The dustproof plate protects the machine tool body from dust and chip pollution, and the blanking port facilitates the flow of workpiece residues into the waste storage box. Thus, through the coordinated action of the chuck, tool holder, dust reduction assembly, driving assembly, blanking port and waste storage box, the machining process is clean and efficient, improving work efficiency while ensuring the hygiene and safety of the operating environment, and significantly improving the production experience of workers.

[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme: a metal product dustproof assembly for numerical control machine tools, comprising a machine tool body, a workbench arranged on the machine tool body, a dustproof plate in sliding connection with the machine tool body for protecting the workbench, a chuck arranged on one side of the upper end face of the workbench, a tool holder arranged on the other side of the upper end face of the workbench, a dust reduction assembly arranged between the chuck and the tool holder, a driving assembly for driving the dust reduction assembly, a blanking port arranged on the workbench, and a waste storage box in sliding connection with the machine tool body and arranged relative to the blanking port.

[0007] By adopting the above technical scheme, the dustproof plate, the material falling port and the waste storage box body are arranged, so that the problems of incomplete protection of the traditional machine tool, easy scattering of dust and complex cleaning are effectively solved, the overall protection of the workbench and the effective collection of chips are realized, in the process of machine tool machining, the chuck and the tool holder on the workbench complete the machining action on the workpiece, the dust and chips generated are dusted and sent to the waste storage box body through the dust falling assembly, the dustproof plate protects the machine tool body from being polluted by dust and chips, and the material falling port facilitates the flow of workpiece residues into the waste storage box body. Therefore, through the cooperation of the chuck, the tool holder, the dust falling assembly, the driving assembly, the material falling port and the waste storage box body, the machining process is clean and efficient, the work efficiency is improved, the health and safety of the operating environment are ensured, and the production experience of the worker is significantly improved.

[0008] As a preferred scheme, the dust falling assembly comprises a moving seat, a liquid storage box body fixedly arranged on an upper end surface of the moving seat, a sealing cover plate arranged on an end of the liquid storage box body away from the moving seat, a conveying pipeline penetrating the moving seat and the liquid storage box body, and an atomizing nozzle arranged at the other end of the conveying pipeline.

[0009] By adopting the above technical scheme, the liquid storage box body is flexibly moved to the place where dust falling is needed by the moving seat, the sealing cover plate ensures liquid sealing and prevents leakage; then, the liquid in the liquid storage is input into the atomizing nozzle through the conveying pipeline, the atomizing nozzle atomizes the liquid into fine particles, which are sprayed on the machined workpiece to achieve the purpose of inhibiting dust flying, thereby effectively reducing the dust concentration in the machining environment.

[0010] As a preferred scheme, the sealing cover plate is detachably connected with the liquid storage box body, and an inner wall of the sealing cover plate is provided with a liquid level sensor, and the liquid level sensor is an infrared sensor.

[0011] By adopting the above technical scheme, the sealing cover plate is detachably connected with the liquid storage box body, and an infrared liquid level sensor is arranged on the inner wall of the sealing cover plate, so that the liquid level state in the liquid storage is conveniently and accurately detected.

[0012] As a preferred scheme, the atomizing nozzle is arranged relative to the axis of the movement track of the chuck and the tool holder, and the atomizing nozzle is detachably connected with the conveying pipeline.

[0013] By adopting the technical scheme, the axis of the atomizing nozzle can move relative to the chuck and the tool holder, and the atomizing nozzle is detachably connected with the conveying pipeline, so that the spraying position is flexibly adjusted, the user can accurately control the spraying range of the atomizing nozzle according to actual needs, the atomizing nozzle moves relative to the chuck and the tool holder to achieve the purpose of dust reduction during the machining process, and the detachable structure of the atomizing nozzle and the conveying pipeline facilitates the user to replace different types of atomizing nozzles, and adjust the spraying flow and spraying shape of the atomizing nozzle according to actual needs.

[0014] As a preferred scheme, the material falling port is designed to be through, and the two sides of the material falling port are designed to be concave.

[0015] By adopting the technical scheme, the material falling port is designed to be through, and the two sides of the material falling port are designed to be concave.

[0016] As a preferred scheme, the drive assembly includes a lead screw connected to the moving seat through a threaded structure, bearing seats arranged at both ends of the lead screw and fixedly connected to the machine tool body, a drive motor for driving the lead screw, and a guide rod slidingly connected to the moving seat and fixedly connected to the machine tool body.

[0017] By adopting the technical scheme, the lead screw is connected to the moving seat through a threaded structure, the drive motor drives the lead screw to rotate, generates a driving force to move the moving seat along the axis direction, and the bearing seats at both ends of the lead screw ensure the stable operation and precision control of the lead screw, and the guide rod fixed to the machine tool body ensures the stable movement of the moving seat along the predetermined path, avoiding deviation and shaking.

[0018] As a preferred scheme, the drive motor is set as a forward and reverse servo motor, the drive motor is fixedly arranged outside the machine tool body, and the output shaft of the drive motor penetrates the machine tool body and is connected with the lead screw.

[0019] By adopting the technical scheme, the forward and reverse servo motor is fixedly arranged outside the machine tool body, and the output shaft of the drive motor penetrates the connection between the machine tool body and the lead screw, so as to accurately control the lead screw, thereby improving the machining precision and efficiency of the machine tool.

[0020] As a preferred scheme, it further includes water baffles fixedly arranged on both sides of the material falling port, the cross section of the water baffles is triangular, and the tool holder is provided with a sliding groove matched with the water baffles.

[0021] By adopting the technical scheme, the triangular water baffles are fixedly arranged on both sides of the material falling port, and the sliding groove on the tool holder is matched, so as to effectively guide the dust reduction combined liquid through the material falling port into the waste storage box.

[0022] As a preferred solution, additionally comprising a viewing window arranged on the dustproof plate, the viewing window is arranged with tempered glass.

[0023] By adopting the above technical scheme, the viewing window is embedded with tempered glass, which can prevent dust and impurities from entering and clearly see the machining process of the workpiece inside.

[0024] Compared with the prior art, the utility model has the advantages that:

[0025] 1. By arranging the dustproof plate, the blanking port and the waste storage box, the problems of incomplete protection of the traditional machine tool, easy scattering of dust and complex cleaning are effectively solved, and the overall protection of the workbench and the effective collection of chips are realized.

[0026] 2. Through the cooperation of the chuck, the tool holder, the dust falling assembly, the driving assembly, the blanking port and the waste storage box, the machining process is clean and efficient, the work efficiency is improved, the hygiene and safety of the operating environment are ensured, and the production experience of the workers is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic view of the metal product dustproof assembly for the numerical control machine tool of the utility model;

[0028] Figure 2 is the structure schematic view of the dust falling assembly in the metal product dustproof assembly for the numerical control machine tool of the utility model;

[0029] Figure 3 is the structure schematic view of the driving assembly in the metal product dustproof assembly for the numerical control machine tool of the utility model;

[0030] Figure 4 is the structure schematic view of the workbench in the metal product dustproof assembly for the numerical control machine tool of the utility model.

[0031] In the drawing:

[0032] 1-machine tool body, 10-waste storage box, 2-workbench, 21-blanking port, 22-water baffle, 3-chuck, 4-tool holder, 5-dustproof plate, 51-viewing window, 61-liquid storage box, 611-sealing cover plate, 62-conveying pipeline, 621-atomizing nozzle, 71-moving seat, 72-screw rod, 721-bearing seat, 73-driving motor, 734-guide rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative in nature and in no way should be construed as any limitation on the present application and its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0034] 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 example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0035] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not intended to limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the example embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0037] For purposes of the description hereinafter, spatially relative terms, such as "above", "below", "up", "down", "between", "within", "left", "right", "rear", "front", "upper", "lower", "horizontal", "vertical", "above", "below", "top", "bottom", "under", and the like, can be used for ease of description to describe one element's or feature's spatial position or relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. can be used herein to describe various elements, components, regions and / or sections. These terms are used merely as labels, and are not intended to impose numerical requirements on their objects. Thus, the terms "first", "second", "third", etc. are not intended to denote a particular order or sequence, unless otherwise stated, and are not intended to limit the scope of the present application.

[0038] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not have a special meaning, and are merely used to distinguish corresponding parts, and therefore cannot be understood as limiting the scope of protection of the present application.

[0039] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a dustproof assembly for metal products of a numerical control machine tool, comprising a machine tool body 1, a workbench 2 arranged on the machine tool body 1, a dustproof plate 5 in sliding connection with the machine tool body 1 for protecting the workbench 2, a chuck 3 arranged on one side of the upper end surface of the workbench 2, a tool holder 4 arranged on the other side of the upper end surface of the workbench 2, and a dust falling assembly arranged between the chuck 3 and the tool holder 4. The dust falling assembly comprises a moving seat 71, a liquid storage tank body 61 fixedly arranged on the upper end surface of the moving seat 71, a sealing cover plate 611 arranged on the liquid storage tank body 61 away from the connecting end of the moving seat 71, a conveying pipeline 62 penetrating through the connecting end of the moving seat 71 and the liquid storage tank body 61, and an atomizing nozzle 621 arranged at the other end of the conveying pipeline 62. The liquid storage tank body 61 is flexibly moved to the place where dust falling is needed by the moving seat 71, and the sealing cover plate 611 ensures the liquid sealing and prevents leakage. Then, the liquid is input into the atomizing nozzle 621 through the conveying pipeline 62, and the atomizing nozzle 621 atomizes the liquid into fine particles and sprays them on the workpiece being processed, so as to achieve the purpose of inhibiting dust flying and effectively reduce the dust concentration in the processing environment.

[0040] Please refer to Figure 2 and Figure 3The sealing cover plate 611 is detachably connected with the liquid storage tank body 61, and the inner wall of the sealing cover plate 611 is provided with a liquid level sensor. The liquid level sensor is an infrared sensor. The sealing cover plate 611 is detachably connected with the liquid storage tank body 61, and the inner wall of the sealing cover plate 611 is provided with an infrared liquid level sensor. The liquid level state in the liquid storage tank can be conveniently and accurately detected. The working principle is as follows: the infrared sensor emits an infrared light beam. When the liquid covers the infrared light irradiation area, the light beam is reflected or absorbed by the liquid. The infrared sensor detects the change of the light beam, thereby judging the liquid level. When the liquid storage container needs to be replenished, the sealing cover plate 611 can be directly detached, thereby reducing the operation difficulty and maintenance cost. In this way, the user can know the liquid storage amount in real time, avoid loss and waste caused by excessive or insufficient liquid, and conveniently and quickly clean and maintain the liquid storage tank body 61.

[0041] For details, please refer to Figure 2 and Figure 3 The atomizing nozzle 621 is arranged relative to the axis of the movement track of the chuck 3 and the tool holder 4, and is detachably connected with the conveying pipeline 62. The axis of the atomizing nozzle 621 can move relative to the chuck 3 and the tool holder 4, and is detachably connected with the conveying pipeline 62. Therefore, the spraying position can be flexibly adjusted. The user can accurately control the spraying range of the atomizing nozzle 621 according to actual needs. The atomizing nozzle 621 moves relative to the chuck 3 and the tool holder 4, so that dust generated in the machining process can be removed. The detachable structure of the atomizing nozzle 621 and the conveying pipeline 62 facilitates the user to replace atomizing nozzles 621 of different models, and adjust the spraying flow and the spraying shape of the atomizing nozzle 621 according to actual needs.

[0042] For details, please refer to Figure 3 A driving assembly is used to drive the dust removal assembly. The driving assembly comprises a lead screw 72 connected with the moving seat 71 through a threaded structure, bearing seats 721 arranged at both ends of the lead screw 72 and fixedly connected with the machine tool body 1, a driving motor 73 used to drive the lead screw 72, and a guide rod 734 slidably connected with the moving seat 71 and fixedly connected with the machine tool body 1. The lead screw 72 is connected with the moving seat 71 through the threaded structure. The driving motor 73 drives the lead screw 72 to rotate, generates a driving force, and moves the moving seat 71 along the linear axis direction. The bearing seats 721 located at both ends of the lead screw 72 ensure the stable operation and precision control of the lead screw 72. Meanwhile, the guide rod 734 fixedly connected with the machine tool body 1 ensures the stable movement of the moving seat 71 along the predetermined path, and avoids deviation and shaking. The whole working process can be summarized as follows: the driving motor 73 rotates the lead screw 72. The lead screw 72 drives the moving seat 71 to move along the specified route through the threaded structure. The guide rod 734 ensures the positioning and stability of the moving seat 71 during the movement, thereby facilitating the driving of the dust removal assembly to remove dust generated in the machining process in real time.

[0043] Specifically refer to Figure 1 , Figure 2 and Figure 3 , the driving motor 73 is set as a positive and negative servo motor, the driving motor 73 is fixedly arranged outside the machine tool body 1, and the output shaft of the driving motor 73 penetrates the machine tool body 1 and is connected with the lead screw 72. By fixing the positive and negative servo motor outside the machine tool body 1, the output shaft penetrates the connection between the machine tool body 1 and the lead screw 72, the precise control of the lead screw 72 is realized, and the machining precision and efficiency of the machine tool are improved. The working principle is that the servo motor rotates and drives according to the instruction of the control signal, drives the lead screw 72 to rotate, and finally realizes the translational motion of the moving seat 71 on the lead screw 72, and then drives the dust falling assembly to move synchronously, so as to effectively capture the dust generated in the machining process and achieve the purpose of dust falling.

[0044] Specifically refer to Figure 1 and Figure 4 , the blanking port 21 arranged on the workbench 2 and the waste storage box 10 slidably connected with the machine tool body 1 and arranged relative to the blanking port 21, the blanking port 21 is arranged as a through type, and the two sides of the blanking port 21 are arranged as a concave type. The through design of the blanking port 21 and the concave structure arranged on both sides can effectively reduce dust pollution in the dust falling process. When the waste liquid slides down the blanking port 21, it will naturally flow into the inside of the blanking port 21 under the guidance of the concave structure due to its own weight, avoiding splashing and greatly reducing dust dispersion, thereby ensuring the cleanliness and efficiency of the dust falling process.

[0045] Specifically refer to Figure 4 , in order to facilitate the waste liquid in the dust falling process to enter the waste storage box 10 through the blanking port 21, water baffle plates 22 are fixedly arranged on both sides of the blanking port 21, the cross section of the water baffle plate 22 is arranged as a triangle, and the tool holder 4 is provided with a sliding groove matched with the water baffle plate 22. By fixing the triangular water baffle plate 22 on both sides of the blanking port 21 and cooperating with the sliding groove on the tool holder 4, the dust falling combined liquid is effectively guided to enter the waste storage box 10 through the blanking port 21. When the dust falling assembly works, the waste liquid will flow downward along the arc-shaped channel of the blanking port 21 after the dirty gas and the liquid water agent are combined. At this time, the inclined angle structure of the triangular water baffle plate 22 guides the waste liquid into the waste storage box 10, blocks the overflow of the waste liquid, ensures the smooth entry of the waste liquid into the waste storage box, and also improves the dust falling effect and efficiency.

[0046] Specifically refer to Figure 1, In order to facilitate the staff to view the processing state of the workpiece, additionally, the observation window 51 arranged on the dustproof plate 5 is further included, the tempered glass is arranged in the observation window 51, and the tempered glass is embedded in the observation window 51, which can prevent dust and impurities from entering and can clearly see the processing process of the workpiece inside. When the workpiece is processed in the machine, the staff can clearly see the state of the workpiece, such as the processing depth, the cutting track of the tool and whether there is an abnormal condition, through the observation window 51, so as to find problems in time and make adjustment, guarantee the processing quality and efficiency. The addition of the tempered glass not only improves the safety of the observation window 51, but also enhances the impact resistance, so as to better guarantee the safety of the staff and the working environment.

[0047] In the embodiment, during the machining of the machine tool, the chuck 3 and the tool holder 4 on the workbench 2 complete the machining action on the workpiece, the servo motor rotates and drives according to the instruction of the control signal, drives the screw rod 72 to rotate through the output shaft, finally realizes the translational motion of the moving seat 71 on the screw rod 72, and moves the liquid storage tank body 61 to the place where dust reduction is needed through the moving seat 71, inputs the liquid storage into the atomizing nozzle 621 through the conveying pipeline 62, atomizes the liquid into fine particles through the atomizing nozzle 621, sprays on the machined workpiece, achieves the purpose of inhibiting dust flying, and effectively reduces the dust concentration in the machining environment. The guide rod 734 guarantees the positioning and stability of the moving seat 71 during the movement process, the dustproof plate 5 protects the machine tool body 1 from being polluted by dust and chips, the blanking port 21 facilitates the workpiece residues and waste liquid to flow into the waste storage tank body 10, and the waste storage tank body 10 can be cleaned regularly.

[0048] The above is the preferred embodiment of the utility model, and the person skilled in the art of the utility model can change and modify the above embodiment, therefore, the utility model is not limited to the above specific embodiments, and any obvious improvement, replacement or modification made by the person skilled in the art on the basis of the utility model belongs to the protection scope of the utility model.

Claims

1. A dust protection assembly for metal products for numerically controlled machine tools, characterized in that: The utility model provides a dustproof machine tool, including machine tool body (1), worktable (2) set up on machine tool body (1), dustproof board (5) with machine tool body (1) sliding connection is used for the protection of worktable (2), chuck (3) setting in the upper end face one side of worktable (2), tool holder (4) setting in the upper end face other side of worktable (2), dust fall subassembly setting between chuck (3) with tool holder (4), drive subassembly for driving dust fall subassembly, blanking port (21) setting on worktable (2) and with machine tool body (1) sliding connection and relative to blanking port (21) setting waste storage box (10).

2. A metal product dust guard assembly for a numerically controlled machine tool according to claim 1, characterized in that: The dust fall subassembly includes a moving seat (71), a liquid storage tank (61) fixedly arranged on an upper end surface of the moving seat (71), a sealing cover plate (611) arranged on the liquid storage tank (61) away from the moving seat (71) connected one end, a conveying pipeline (62) penetrating the moving seat (71) and the liquid storage tank (61) connected, and an atomizing nozzle (621) arranged at the other end of the conveying pipeline (62).

3. A metal product dust guard assembly for a numerically controlled machine tool according to claim 2, characterized in that: The sealing cover plate (611) is detachably connected with the liquid storage tank (61), and the inner wall of the sealing cover plate (611) is provided with a liquid level sensor, which is an infrared sensor.

4. A metal product dust guard assembly for a numerically controlled machine tool according to claim 3, characterized in that: The atomizing nozzle (621) is arranged relative to the axis of the movement track of the chuck (3) and the tool holder (4), and the atomizing nozzle (621) is detachably connected with the conveying pipeline (62).

5. A metal product dust guard assembly for a numerically controlled machine tool according to claim 3, characterized in that: The blanking port (21) is arranged to be penetrating, and the two sides of the blanking port (21) are respectively arranged to be concave.

6. A dustproof assembly for metal products used in CNC machine tools according to claim 2, characterized in that: The drive subassembly includes a lead screw (72) connected with the moving seat (71) through a threaded structure, a bearing seat (721) arranged at both ends of the lead screw (72) and fixedly connected with the machine tool body (1), a drive motor (73) for driving the lead screw (72), and a guide rod (734) slidingly connected with the moving seat (71) and fixedly connected with the machine tool body (1).

7. A metal product dust guard assembly for a numerically controlled machine tool according to claim 6, characterized in that: The drive motor (73) is arranged as a forward and reverse servo motor, the drive motor (73) is fixedly arranged on the outside of the machine tool body (1), and the output shaft of the drive motor (73) penetrates the machine tool body (1) and is connected with the lead screw (72).

8. A metal product dust guard assembly for a numerically controlled machine tool according to claim 7, characterized in that: It also includes a water baffle (22) fixedly arranged on both sides of the blanking port (21) respectively, the cross section of the water baffle (22) is arranged as a triangle, and the tool holder (4) is provided with a sliding groove matched with the water baffle (22).

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