Numerical control machine tool with multi-clamping double-process composite machining

Abstract

The application relates to the technical field of numerical control machine tools, and discloses a numerical control machine tool with multi-clamping double-process composite machining, which comprises a numerical control machine tool main body, a machine box and a drill rod, the machine box is fixedly connected to the inside of the numerical control machine tool main body, and the drill rod is driven and mounted on the lower surface of the machine box. Through the arrangement of the cleaning assembly, the cuttings generated by the material to be cut during drilling of the drill rod cannot be left on the surface of the material cutting part, the cuttings can be avoided from being left, the surface of the workpiece can be kept smooth and clean, the surface quality and precision of the workpiece can be improved, the friction between the cutter and the cuttings can be reduced, cutter wear can be reduced, the clean and neat surface of the workpiece can improve the cooling and lubricating effect of the cutting fluid on the surface of the workpiece, the machining stability and efficiency can be improved, the safety and comfort of the production operator can be improved, the work risk can be reduced, the appearance quality of the product can be kept, and the overall aesthetic sense and perceptual sensitivity of the product can be improved.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, specifically to a CNC machine tool with multi-clamping dual-process composite machining. Background Technology

[0002] A CNC machine tool is a machine tool that uses a digital control system to automate the machining of workpieces. CNC machine tools control the movement of tools in three-dimensional space through pre-programmed instructions, enabling machining operations such as cutting, milling, and drilling. Its main components include a worktable, spindle, CNC system, and servo motors. The advantages of CNC machine tools lie in their high precision, high efficiency, and flexibility. They can machine workpieces of minute dimensions and complex structures with high precision and repeatability. The automated machining process improves production efficiency. Machining programs can be written according to different processing requirements, offering high flexibility. Furthermore, CNC machine tools have automatic tool changing, automatic measurement, and automatic correction functions, reducing manual intervention and improving production efficiency.

[0003] Existing CNC machine tools grind or cut materials through the grooves on the side of the drill bit during operation. During operation, these grooves experience significant lateral resistance. After prolonged use, the drill bit may experience metal fatigue and bend. Continuing to process a bent drill bit will introduce errors in the material's final shape, affecting the precision of the finished part. Furthermore, the bend increases friction within the machine during operation, increasing resistance and potentially causing overheating or even spontaneous combustion, endangering worker safety. If the chips generated during cutting are not cleaned, they will obstruct the drill bit's movement, affecting cutting accuracy. Additionally, the drill bit carrying chips that scrape the material surface during movement will cause wear, affecting the aesthetics of the finished part.

[0004] To address this, a CNC machine tool with multi-clamping, dual-process composite machining is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a CNC machine tool with multi-clamping dual-process composite machining to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a CNC machine tool with multi-clamping dual-process composite machining, comprising a CNC machine tool body, a machine housing, and a drill rod. The machine housing is fixedly connected inside the CNC machine tool body. The drill rod is driven and mounted on the lower surface of the machine housing. A drill bit detection component is provided inside the drill rod for detecting the flatness of the drill bit. A cleaning component is provided below the drill rod for cleaning up debris generated by the raw material during operation. A machining mode switching component is provided inside the drill rod for switching the cutting mode of the drill bit.

[0007] Preferably, the drill bit detection assembly includes baffles symmetrically fixedly connected to the lower surface of the housing. A round rod is slidably connected to the lower end of each baffle. An inner ring of a rotating shaft is fixedly connected to the lower end of each of the two round rods. A sliding rod is symmetrically slidably connected to the outer wall of the inner ring of the rotating shaft. A pressing plate is fixedly connected to the end of each sliding rod near the drill bit. A spring is sleeved on the outer wall of each sliding rod. One end of each spring is fixedly connected to the side of the pressing plate near the inner ring of the rotating shaft, and the other end of each spring is fixedly connected to the side of the inner ring of the rotating shaft near the pressing plate. The sliding rod is positioned away from the drill bit. Each end of the slide rod is fixedly connected to a trapezoidal slider two. The surface of the slide rod one is slidably connected to the trapezoidal slider two. The surface of the slide rod one is fixedly connected to a limiting plate. The limiting plate is attached to the end of the trapezoidal slider one near the inner ring of the rotating shaft. The outer wall of the inner ring of the rotating shaft is fixedly connected to a protective cover. The surface of the protective cover is symmetrically slidably connected to a slide rod two. The end of the slide rod two near the trapezoidal slider one is fixedly connected to a locking block. The inner wall of the protective cover and the locking block, and the outer wall of the slide rod two, are fitted with a spring two. The end of the protective cover away from the drill rod is rotatably connected to a sensing plate.

[0008] Preferably, the cleaning component includes a transmission gear rotatably connected to the upper surface of the inner ring of the rotating shaft. A transmission belt drives the transmission gear and the drill rod. A rotating ball is fixedly connected in a ring around the inner ring of the rotating shaft. The rotating ball is rotatably connected to the outer wall of the inner ring of the rotating shaft. An outer ring of the rotating shaft is rotatably connected to the end of the rotating ball away from the inner ring of the rotating shaft. A gear ring is fixedly connected in a ring at the upper end of the outer ring of the rotating shaft. The transmission gear meshes with the gear ring. A scraper is fixedly connected in a ring at the lower end of the outer ring of the rotating shaft.

[0009] Preferably, the processing mode switching component includes a limiting rod, a square groove is provided at the lower end of the drill rod, the limiting rod is fixedly connected to the inner wall of the drill rod near the drill rod axis, a bracket is rotatably connected to the lower end of the drill rod, a drill plate is rotatably connected to the lower end of the bracket, a fixing block is rotatably connected to the upper end of the bracket, the fixing block is slidably connected to the outer wall of the limiting rod, a round rod is fixedly connected to the side of the fixing block near the outer wall of the drill rod, a spring is sleeved on the outer wall of the round rod, a stop is rotatably connected to the outer wall of the round rod, the spring passes through the inside of the stop, and the round rod is fixedly connected to the side of the fixing block near the outer wall of the drill rod.

[0010] Preferably, the card block is engaged between trapezoidal slider two and trapezoidal slider one, the center of the extrusion plate is coaxial with the center of the drill rod, and the side of the extrusion plate near the drill rod is made of rubber, and the sensing plate is in contact with trapezoidal slider two.

[0011] Preferably, an alarm is installed inside the protective cover, and the sensing plate is electrically connected to the alarm under the control of the trapezoidal slider.

[0012] Preferably, the CNC machine tool body is equipped with a power supply, the machine casing is electrically connected to the power supply, and the drill rod is driven and mounted on the lower surface of the machine casing.

[0013] Preferably, the scraper is made of rubber.

[0014] Preferably, the square groove at the lower end of the drill rod is provided with a magnetic coating on the side near the drill rod axis, the fixing block is made of iron, the stop is set as L-shaped, the distance from the upper surface of the stop to the top of the inner wall of the fixing block is the same as the diameter of the limiting rod, and the drill plate is shaped like the three-sided angle cutting edge of a Reuleaux triangle plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By incorporating a cleaning component, the material debris generated during drilling is prevented from remaining on the surface of the workpiece. This prevents debris residue and maintains a smooth and clean workpiece surface, improving surface quality and precision. It also reduces friction between the tool and debris, decreasing tool wear and extending tool life. Furthermore, the absence of debris helps reduce problems in subsequent processing, such as interference and quality defects in welding and painting. A clean workpiece surface enhances the cooling and lubrication of the cutting fluid, improving processing stability and efficiency. This also improves operator safety and comfort, reduces work risks, and helps maintain product appearance quality, enhancing overall aesthetics and visual appeal.

[0017] 2. By setting up the drill bit detection component, the alarm device can help monitor the status of the drill bit, detect abnormalities in a timely manner, and thus avoid tool breakage, flying out, or other accidents caused by deformation, ensuring the safety of operators. Timely alarms can prevent equipment damage caused by drill bit deformation, reduce maintenance costs and production downtime. Drill bit deformation may lead to problems such as reduced machining accuracy and decreased workpiece surface quality. Timely alarms from the alarm device help prevent the above problems from occurring, ensure machining quality, and improve the monitoring capabilities of the equipment.

[0018] 3. The trapezoidal slider sliding on the slide bar significantly shortens tool change time, reduces production line downtime, and improves production efficiency. The convenient drill bit replacement reduces downtime caused by tool changes, increasing equipment utilization and production efficiency. Quick drill bit replacement reduces operator time and labor intensity, lowering labor costs. It ensures accurate drill bit positioning after each replacement, improving processing precision and product quality. The quick drill bit replacement also reduces vibration and impact during replacement, minimizing equipment wear and damage. Convenient drill bit replacement allows for rapid adaptation to different processing needs, enabling two processing operations and enhancing the flexibility and versatility of the production line.

[0019] 4. The processing mode switching component allows operators to switch cutting shapes without disassembly, improving work efficiency and avoiding wear on the cutting head and equipment caused by disassembling the cutting head, thus extending the overall service life of the equipment. Variable drilling shapes can meet the design requirements of different workpieces. Variable-shape drilling tools can complete the processing of two hole shapes in a single operation, reducing the number of processing steps and increasing production efficiency. Using variable-shape drilling tools reduces the purchase and replacement costs of different shaped drill bits, lowering processing costs. Variable-shape drilling tools also facilitate innovative workpiece design and personalized processing, meeting the customized needs of different customers. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a side view of the overall structure of the present invention;

[0022] Figure 3 This is a front view of the overall structure of the present invention;

[0023] Figure 4 This is a partial schematic diagram of the drill pipe structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 6 This is a bottom view schematic diagram of the drill pipe structure of the present invention;

[0026] Figure 7 This is a partial cross-sectional view of the present invention;

[0027] Figure 8 This is a partial cross-sectional view of the processing mode switching component structure of the present invention;

[0028] Figure 9For the present invention Figure 8 Enlarged schematic diagram of the structure at point B;

[0029] Figure 10 This is a cross-sectional view of the processing mode switching component structure of the present invention.

[0030] In the picture:

[0031] 11. CNC machine tool body; 12. Machine casing; 13. Drill rod;

[0032] 2. Drill bit detection assembly; 21. Baffle; 22. Round rod one; 23. Inner ring of rotating shaft; 24. Slide rod one; 25. Trapezoidal slider one; 26. Trapezoidal slider two; 27. Extrusion plate; 28. Spring one; 29. ​​Protective cover; 210. Slide rod two; 211. Spring two; 212. Locking block; 213. Sensing plate;

[0033] 3. Cleaning components; 31. Transmission gear; 32. Transmission belt; 33. Outer ring of shaft; 34. Gear ring; 35. Scraper; 36. Ball bearing;

[0034] 4. Processing mode switching component; 41. Limiting rod; 42. Bracket; 43. Fixing block one; 44. Drill plate; 45. Round rod two; 46. Spring three; 47. Stop block; 48. Round rod three. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0036] Embodiments of the present invention: Please refer to Figures 1 to 10 A CNC machine tool with multi-clamping dual-process composite machining includes a CNC machine tool body 11, a machine housing 12, and a drill rod 13. The machine housing 12 is fixedly connected inside the CNC machine tool body 11. The drill rod 13 is driven and installed on the lower surface of the machine housing 12. A power supply is provided inside the CNC machine tool body 11, and the machine housing 12 is electrically connected to the power supply. The drill rod 13 is driven and installed on the lower surface of the machine housing 12. A drill bit detection component 2 for detecting the flatness of the drill bit is provided inside the drill rod 13. A cleaning component 3 for cleaning the debris generated by the raw material during operation is provided below the drill rod 13. A machining mode switching component 4 for switching the cutting mode of the drill bit is provided inside the drill rod 13.

[0037] The drill bit detection assembly 2 includes baffles 21, which are symmetrically fixedly connected to the lower surface of the housing 12. A round rod 22 is slidably connected to the lower end of each baffle 21. A rotating shaft inner ring 23 is fixedly connected to the lower end of each round rod 22. A sliding rod 24 is symmetrically slidably connected to the outer wall of the rotating shaft inner ring 23. A pressing plate 27 is fixedly connected to the end of each sliding rod 24 near the drill rod 13. A spring 28 is sleeved on the outer wall of each sliding rod 24. One end of each spring 28 is fixedly connected to the side of the pressing plate 27 near the rotating shaft inner ring 23, and the other end of each spring 28 is fixedly connected to the side of the rotating shaft inner ring 23 near the pressing plate 27. A trapezoidal slider 26 is fixedly connected to the end of each sliding rod 24 away from the drill rod 13. A trapezoidal slider 25 is slidably connected to the surface of each sliding rod 24 near the trapezoidal slider 26. A limit plate is fixedly connected to the surface of each sliding rod 24. The position plates are all attached to the end of the trapezoidal slider 25 near the inner ring 23 of the rotating shaft. The outer wall of the inner ring 23 of the rotating shaft is fixedly connected to the protective cover 29. The surface of the protective cover 29 is symmetrically slidably connected to the slide rod 210. The end of the slide rod 210 near the trapezoidal slider 25 is fixedly connected to the locking block 212. The inner wall of the protective cover 29 and the locking block 212 and the outer wall of the slide rod 210 are both fitted with the spring 211. The end of the protective cover 29 away from the drill rod 13 is rotatably connected to the sensing plate 213. The locking block 212 is locked between the trapezoidal slider 26 and the trapezoidal slider 25. The center of the extrusion plate 27 is coaxial with the center of the drill rod 13. The side of the extrusion plate 27 near the drill rod 13 is made of rubber. The sensing plate 213 is attached to the trapezoidal slider 26. An alarm is installed inside the protective cover 29. The sensing plate 213 is controlled by the trapezoidal slider 26 and electrically connected to the alarm.

[0038] The cleaning component 3 includes a transmission gear 31, which is rotatably connected to the upper surface of the inner ring 23 of the rotating shaft. A transmission belt 32 is connected between the transmission gear 31 and the drill rod 13. A rotating ball 36 is fixedly connected in a ring around the inner ring 23 of the rotating shaft. The rotating ball 36 is rotatably connected to the outer wall of the inner ring 23 of the rotating shaft. The end of the rotating ball 36 away from the inner ring 23 of the rotating shaft is rotatably connected to the outer ring 33 of the rotating shaft. A gear ring 34 is fixedly connected in a ring at the upper end of the outer ring 33 of the rotating shaft. The transmission gear 31 and the gear ring 34 mesh with each other. A scraper 35 is fixedly connected in a ring at the lower end of the outer ring 33 of the rotating shaft. The scraper 35 is made of rubber.

[0039] The processing mode switching component 4 includes a limiting rod 41. A square groove is provided at the lower end of the drill rod 13. The limiting rod 41 is fixedly connected to the inner wall of the drill rod 13 near the axis of the drill rod 13. A bracket 42 is rotatably connected to the lower end of the drill rod 13. A drill plate 44 is rotatably connected to the lower end of the bracket 42. A fixing block 43 is rotatably connected to the upper end of the bracket 42. The fixing block 43 is slidably connected to the outer wall of the limiting rod 41. A round rod 45 is fixedly connected to the side of the fixing block 43 near the outer wall of the drill rod 13. A spring is sleeved on the outer wall of the round rod 45. Spring 3 46 and round rod 2 45 are rotatably connected to a stop 47. Spring 3 46 passes through the inside of stop 47. Round rod 3 48 is fixedly connected to the side of fixed block 1 43 near the outer wall of drill rod 13. A magnetic coating is provided on the side of the square groove at the lower end of drill rod 13 near the axis of drill rod 13. Fixed block 1 43 is made of iron. Stop 47 is L-shaped. The distance from the upper surface of stop 47 to the top of the inner wall of fixed block 1 43 is the same as the diameter of limit rod 41. Drill plate 44 is shaped like the three-sided angle cut edge of Reuleaux triangle plate.

[0040] Working principle: In the initial state, the power supply inside the chassis 12 is not energized, the drill rod 13 is not rotated, the locking block 212 is locked between the trapezoidal slider 1 25 and the trapezoidal slider 26, the fixing block 1 43 is attached to the inner wall of the square groove at the lower end of the drill rod 13 by the magnetic attraction of the magnetic material of the inner wall of the drill rod 13, and the spring 1 28 is in the extended state.

[0041] During operation, the operator starts the internal power supply of the chassis 12, which drives the drill rod 13 to rotate. After the drill rod 13 rotates, the transmission gear 31 rotates along with it under the transmission belt 32. The rotation of the transmission gear 31 drives the meshing gear ring 34 to rotate as well. The rotation of the gear ring 34 drives the outer ring 33 of the rotating shaft, which is fixedly connected to its lower end, to rotate as well. The rotation of the outer ring 33 drives the scraper 35, which is fixedly connected to its lower surface, to rotate as well. The scraper 35 scrapes away debris from the material surface. Through the setting of the cleaning component 3, it is ensured that debris generated by the material being cut during drilling does not remain on the surface of the material to be cut. A clean and smooth workpiece surface, free from debris residue, improves surface quality and precision. It also reduces friction between the cutting tool and debris, decreasing tool wear and extending tool life. Furthermore, the absence of debris helps minimize problems in subsequent processing, such as interference and defects in welding and painting. A clean workpiece surface enhances the cooling and lubrication of the cutting fluid, improving processing stability and efficiency. It also improves operator safety and comfort, reduces work risks, and helps maintain product appearance quality, enhancing overall aesthetics and visual appeal.

[0042] When the drill rod 13 bends or deforms while cutting an object, the bent drill rod 13 will squeeze the extrusion plate 27 during rotation, pushing the extrusion plate 27 towards the inner wall of the inner ring 23 of the rotating shaft. The extrusion plate 27 moves under the pressure of the bent drill rod 13, causing the slide rod 24 to slide outwards inside the inner ring 23 of the rotating shaft. The outward sliding of the slide rod 24 causes the trapezoidal slider 26 and the limiting plate to move together. The movement of the limiting plate causes the trapezoidal slider 25 to move outwards together. The outward movement of the trapezoidal slider 25 pushes the locking block 212, causing it to move along the inclined surface of the locking block 212 until the locking block 212 is no longer locked between the trapezoidal slider 25 and the trapezoidal slider 26. At this time, the spring 28 is no longer stretched and elastically contracts. The elastic contraction of the spring 28 will cause the extrusion plate 27 to fit tightly against the outer wall of the drill rod 13. At this time, the rubber coating on the inner wall of the extrusion plate 27 will adhere to the drill rod 13. Friction is generated on the surface of rod 13, which reduces the rotational speed of drill rod 13. As slide rod 1 24 moves closer to one end of drill rod 13, it also drives trapezoidal slider 2 26 to move together. After moving, trapezoidal slider 2 26 is no longer in contact with induction plate 213. Induction plate 213 is electrically connected to the alarm inside protective cover 29 and sounds an alarm to alert the operator. Through the setting of drill bit detection component 2, the alarm device can help monitor the status of drill bit, detect abnormalities in time, and avoid tool breakage, flying out or other accidents caused by deformation, thus ensuring the safety of operators. Timely alarm can prevent equipment damage caused by drill bit deformation, reduce maintenance costs and production downtime. Drill bit deformation may lead to problems such as reduced processing accuracy and decreased workpiece surface quality. Timely alarm of the alarm device helps to prevent these problems from occurring and ensures processing quality. The use of alarm device helps to improve the monitoring capability of equipment.

[0043] When the operator prepares to replace drill rod 13, first disconnect the power supply inside the machine housing 12 and ensure that drill rod 13 has stopped rotating. Then, push the extrusion plate 27 away from the end of drill rod 13. The locking block 212 slides on the surface of trapezoidal slider 26, and pushes trapezoidal slider 25 on slide rod 24 to the end away from trapezoidal slider 26. The locking block 212 re-engages between trapezoidal slider 25 and trapezoidal slider 26, causing spring 28 to return to its pre-use elastic contraction state. Then, the operator removes and replaces drill rod 13. The setting of trapezoidal slider 25 sliding on slide rod 24 makes the operation... When personnel change drill bits, tool change time can be significantly shortened, production line downtime can be reduced, and production efficiency can be improved. The ease of changing drill bits can reduce the number of downtimes caused by tool changes, improve equipment utilization and production efficiency, reduce the time and labor intensity of operators in changing tools, reduce labor costs, and ensure the accurate position of the drill bit after each change, thereby improving processing accuracy and product quality. Because the quick drill bit change reduces the vibration and impact generated during the change, it can reduce equipment wear and damage. The ease of changing drill bits can quickly adapt to different processing needs, improve the flexibility and versatility of the production line.

[0044] When drilling a square hole, the power to the machine housing 12 is first turned off to stop the drill rod 13 from rotating. The fixing block 43 can then be pressed down or the drill plate 44 can be pushed, causing the bracket 42 to change from a vertical to an inclined state. Because the bracket 42, fixing block 43, and drill plate 44 are all rotatably connected, and the bracket 42 is a parallelogram, its upper and lower ends remain horizontal during the tilting process. As fixing block 43 moves downward, it causes the stop block 47 to move downward as well. When the stop block 47 contacts the limit rod 41, the stop block... When block 47 is pressed by limit rod 41, it rotates around round rod 45, causing the top of the inner wall of fixed block 43 to fit against the outer wall of limit rod 41. When limit rod 41 and round rod 48 are no longer in contact, stop block 47 will be restored to its initial state by spring 46, restricting the movement of fixed block 43 and keeping the top of the inner wall of fixed block 43 always in contact with the outer wall of limit rod 41. Therefore, bracket 42 is always tilted and fixed. When the operator needs to restore the circular drill hole, stop block 47 can be rotated upwards. The rotation allows the fixed block 43 to move on the surface of the limiting rod 41 and magnetically attaches it to the inner wall of the square groove at the lower end of the drill rod 13. The drill plate 44 is formed by cutting a Reuleaux triangle, and its endpoints will form a square shape during eccentric rotation. During the rotation and pressing of the drill plate 44, square holes can be cut into the material to be cut, increasing the cutting range of the equipment. The setting of the processing mode switching component 4 allows the operator to switch the cutting shape without disassembly, improving the operator's work efficiency. At the same time, it avoids the wear caused by disassembling the cutting head to the cutting head and the equipment, and improves the overall service life of the equipment. The variable drilling shape can meet the design requirements of different workpieces. The variable-shape drilling tool can complete the processing of two shapes of holes in one operation, thereby reducing the number of processing times and improving production efficiency. By using the variable-shape drilling tool, the purchase and replacement costs of different shaped drill bits can be reduced, and the processing cost can be reduced. The variable-shape drilling tool helps to realize the innovative design and personalized processing of workpieces, and meet the customized needs of different customers.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC machine tool with multi-clamping dual-operation composite machining, comprising a CNC machine tool body (11), a machine housing (12), and a drill rod (13), wherein the machine housing (12) is fixedly connected inside the CNC machine tool body (11), and the drill rod (13) is driven and mounted on the lower surface of the machine housing (12), characterized in that: The drill rod (13) is provided with a drill bit detection component (2) for detecting the flatness of the drill bit, and a cleaning component (3) for cleaning up the debris generated by the raw material during operation is provided below the drill rod (13). The drill rod (13) is provided with a processing mode switching component (4) for switching the cutting mode of the drill bit. The drill bit detection assembly (2) includes a baffle (21), which is symmetrically fixedly connected to the lower surface of the housing (12). A round rod (22) is slidably connected to the lower end of each baffle (21). A rotating shaft inner ring (23) is fixedly connected to the lower end of each of the two round rods (22). A sliding rod (24) is symmetrically slidably connected to the outer wall of the rotating shaft inner ring (23). A pressing plate (27) is fixedly connected to the end of the sliding rod (24) near the drill bit (13). A spring (28) is sleeved on the outer wall of the sliding rod (24). One end of the spring (28) is fixedly connected to the side of the pressing plate (27) near the rotating shaft inner ring (23), and the other end of the spring (28) is fixedly connected to the side of the rotating shaft inner ring (23) near the pressing plate (27). The end of the sliding rod (24) away from the drill bit (13) is... A trapezoidal slider two (26) is fixedly connected. A trapezoidal slider one (25) is slidably connected to the side of the surface of the slider one (24) close to the trapezoidal slider two (26). A limit plate is fixedly connected to the surface of the slider one (24). The limit plate is attached to the end of the trapezoidal slider one (25) close to the inner ring (23) of the rotating shaft. A protective cover (29) is fixedly connected to the outer wall of the inner ring (23) of the rotating shaft. A slider two (210) is symmetrically slidably connected to the surface of the protective cover (29). A locking block (212) is fixedly connected to the end of the slider two (210) close to the trapezoidal slider one (25). A spring two (211) is sleeved between the inner wall of the protective cover (29) and the locking block (212) and on the outer wall of the slider two (210). A sensor plate (213) is rotatably connected to the end of the protective cover (29) away from the drill rod (13). The cleaning component (3) includes a transmission gear (31), which is rotatably connected to the upper surface of the inner ring (23) of the rotating shaft. A transmission belt (32) is connected between the transmission gear (31) and the drill rod (13). A rotating ball (36) is fixedly connected in a ring around the inner ring (23). The rotating ball (36) is rotatably connected to the outer wall of the inner ring (23). An outer ring (33) of the rotating shaft is rotatably connected to the end of the rotating ball (36) away from the inner ring (23). A gear ring (34) is fixedly connected in a ring at the upper end of the outer ring (33). The transmission gear (31) and the gear ring (34) mesh with each other. A scraper (35) is fixedly connected in a ring at the lower end of the outer ring (33). The processing mode switching component (4) includes a limiting rod (41). The lower end of the drill rod (13) is provided with a square groove. The limiting rod (41) is fixedly connected to the inner wall of the drill rod (13) on the side near the axis of the drill rod (13). The lower end of the drill rod (13) is rotatably connected to a bracket (42). The lower end of the bracket (42) is rotatably connected to a drill plate (44). The upper end of the bracket (42) is rotatably connected to a fixing block (43). 3) Sliding connection to the outer wall of the limiting rod (41), the fixing block one (43) is fixedly connected to the side of the drill rod (13) with the round rod two (45), the outer wall of the round rod two (45) is sleeved with the spring three (46), the outer wall of the round rod two (45) is rotatably connected to the stop block (47), the spring three (46) passes through the inside of the stop block (47), and the fixing block one (43) is fixedly connected to the side of the drill rod (13) with the round rod three (48).

2. The CNC machine tool with multi-clamping dual-operation composite machining according to claim 1, characterized in that: The card block (212) is engaged between the trapezoidal slider two (26) and the trapezoidal slider one (25). The center of the extrusion plate (27) is coaxial with the center of the drill rod (13), and the side of the extrusion plate (27) near the drill rod (13) is made of rubber. The sensing plate (213) is in contact with the trapezoidal slider two (26).

3. A CNC machine tool with multi-clamping dual-operation composite machining according to claim 1, characterized in that: An alarm is installed inside the protective cover (29), and the sensor plate (213) is electrically connected to the alarm by the trapezoidal slider (26).

4. A CNC machine tool with multi-clamping dual-operation composite machining according to claim 1, characterized in that: The main body (11) of the CNC machine tool is equipped with a power supply, and the chassis (12) is electrically connected to the power supply.

5. A CNC machine tool with multi-clamping dual-operation composite machining according to claim 1, characterized in that: The scraper (35) is made of rubber.

6. A CNC machine tool with multi-clamping dual-operation composite machining according to claim 1, characterized in that: The square groove at the lower end of the drill rod (13) is provided with a magnetic coating on the side near the axis of the drill rod (13). The material of the fixing block (43) is iron. The stop block (47) is set as L-shaped. The distance from the upper surface of the stop block (47) to the top of the inner wall of the fixing block (43) is the same as the diameter of the limiting rod (41). The drill plate (44) is shaped like the three-sided corner cutting edge of a Reuleaux triangle plate.

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