Numerical control gang drill device

Abstract

The invention relates to the technical field of gang drills, in particular to a numerical control gang drill device which comprises a machine tool body, a telescopic assembly is arranged in the machine tool body, the output end of the telescopic assembly faces downwards and is connected with an extrusion block, and a storage plate is arranged at the position, below the telescopic assembly, in the machine tool body. One side of the machine tool body is connected with a gang drill plate through an air cylinder, and the side, facing the machine tool body, of the gang drill plate is evenly connected with a plurality of through drill seats. According to the device, a second clamping block and a first laser distance measuring sensor are arranged, the first laser distance measuring sensor can detect the distance value between a drill bit and an extension block at different positions of the drill bit, and the distance value between the drill bit and the extension block can be detected in the mode that the drill bit rotates; the detected distance value is uploaded to a background control system to be compared with a standard data value, and if the detected data value exceeds a standard data value interval, it is indicated that the drill bit deforms.

Description

Technical Field

[0001] This invention relates to the field of drilling technology, and more particularly to a CNC drilling device. Background Technology

[0002] CNC drilling equipment is a type of mechanical equipment that uses advanced CNC technology to convert mechanical power into electronic signals to control drilling tools for processing. In furniture production, CNC drilling equipment is needed to drill holes in furniture boards to facilitate subsequent furniture assembly.

[0003] Currently, during the use of drilling equipment, the drill bits are used very frequently, which makes them prone to damage and deformation. At present, drilling equipment does not have the function of monitoring the drill bits during use, which means that the staff does not know the specific usage status of the drill bits. Once the drill bits on the drilling equipment are deformed, it will affect the service life of the equipment and the processing quality of the plates. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a CNC drilling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A CNC drilling device includes a machine tool body. The machine tool body has an internal telescopic assembly with its output end facing downwards and connected to a pressing block. A storage plate is located below the telescopic assembly inside the machine tool body. A drilling plate is connected to one side of the machine tool body via a cylinder. Multiple through-drill bases are evenly connected to the side of the drilling plate facing the machine tool body, each base having a drill bit. The drilling plate has a first auxiliary mechanism and a second auxiliary mechanism. Lifting plates are movably installed on both sides of the machine tool body, and each lifting plate has a third auxiliary mechanism.

[0006] Preferably, the first auxiliary mechanism includes an extension block and a first laser ranging sensor. A guide rail is installed on the top of the drilling plate, a second electric slider is slidably installed on the top of the guide rail, a first connecting block is connected to the top of the second electric slider, an extension block is movably connected to the side of the first connecting block near the machine tool body, and the first laser ranging sensor is embedded in the top of the extension block.

[0007] Preferably, a first electric extension rod is installed on the side of the first connecting block away from the machine tool body, the extension end of the first electric extension rod faces the first connecting block, and the extension end of the first electric extension rod movably passes through the first connecting block and is movably connected to the extension block.

[0008] Preferably, a rotary motor is embedded in the side of the extension block near the first connecting block, the mounting end of the rotary motor faces the first connecting block, and the mounting end of the rotary motor is connected to the extension end of the first electric extension rod.

[0009] Preferably, the second auxiliary mechanism includes a second connecting plate and a second clamping block. A third electric slider is slidably mounted on the top of the guide rail. A second connecting block is connected to the top of the third electric slider. A telescopic block is movably connected to the side of the second connecting block near the machine tool body. A second connecting plate is movably connected to the bottom of the telescopic block. Two second clamping blocks are movably mounted on the bottom of the second connecting plate. A second laser ranging sensor is embedded on the side of the second connecting plate away from the guide rail.

[0010] Preferably, a second electric extension rod is installed on the side of the second connecting block away from the machine tool body, the extension end of the second electric extension rod faces the second connecting block, and the extension end of the second electric extension rod movably passes through the second connecting block and is connected to the telescopic block.

[0011] Preferably, an electric lifting rod is embedded in the bottom of the telescopic block, with the lifting end of the electric lifting rod facing downwards. The lifting end of the electric lifting rod is connected to the top of the second connecting plate. A displacement groove is provided at the bottom of the second connecting plate, and a displacement electric slider is installed at the top of the second clamping block. The displacement electric slider is slidably installed inside the displacement groove.

[0012] Preferably, lifting grooves are provided on both sides of the inner wall of the machine tool body, and a lifting electric slider is installed on the side of the lifting plate near the inner wall of the machine tool body. The lifting electric slider is slidably installed inside the lifting groove.

[0013] Preferably, the third auxiliary mechanism includes a first clamping block, and a movable slide groove is provided on the side of the lifting plate away from the inner wall of the machine tool body. Two movable electric sliders are slidably installed inside the movable slide groove. A first connecting plate is connected to the side of the movable electric slider away from the lifting plate. Two first clamping blocks are movably installed on the side of the first connecting plate away from the lifting plate.

[0014] Preferably, the first connecting plate has a first groove on the side away from the lifting plate, and a third electric extension rod is embedded in the side of the first clamping block near the first connecting plate. The mounting end of the third electric extension rod faces the first connecting plate, and the mounting end of the third electric extension rod is connected to a first electric slider, which is slidably installed inside the first groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a second clamping block and a first laser ranging sensor are provided. The first laser ranging sensor can detect the distance between the drill bit and the extension block at different positions of the drill bit. Furthermore, by rotating the drill bit, the distance between the drill bit and the extension block can be detected, and the detected distance value is uploaded to the background control system for comparison with standard data values. If the detected data value exceeds the standard data value range, it indicates that the drill bit has deformed. By using the second clamping block to hold and move the drill bit, the drill bit can be automatically disassembled and installed when changing the drill bit. This can assist in the operation of the equipment when the space is small and it is not convenient for workers to change the drill bit. When it is necessary to test the installation stability of the sheet metal with the extrusion block, the first clamping blocks on the two first connecting plates abut against the two sides of the sheet metal. The second laser range sensor moves to the side facing the sheet metal. The first clamping blocks squeeze and shake the sheet metal by sliding the first connecting plates on the lifting plate. During this period, the second laser range sensor detects the change in distance between the second connecting plate and the sheet metal and transmits the detection data to the background control system for comparison with the standard data value. If the detection data value exceeds the range of the marked data value, it indicates that the sheet metal has become loose during the extrusion process, thus indicating that the installation of the sheet metal is unstable.

[0016] In this invention, a first clamping block is provided. When it is necessary to test the installation stability of the extrusion block, the first clamping block can clamp the extrusion block and shake it up and down. While the extrusion block is shaking, the first laser ranging sensor detects the distance between the extension block and the extrusion block and transmits the detected distance value to the background control system in real time for comparison with the standard data value. If the detected data value exceeds the standard data value range, it indicates that the installation of the extrusion block is loose. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the mounting structure of the third electric extension rod of the present invention. Figure 4 This is a schematic diagram of the guide rail mounting structure of the present invention; Figure 5 This is a schematic diagram of the rotating motor mounting structure of the present invention; Figure 6 This is a schematic diagram of the installation structure of the second connecting plate and the second clamping block of the present invention; Figure 7 This is a schematic diagram of the electric lifting pole installation structure of the present invention; Figure 8 This is a schematic diagram of the sheet metal installation and processing structure of the present invention.

[0018] In the diagram: 1. Machine tool body; 2. Guide rail; 3. Telescopic assembly; 4. Extrusion block; 5. Drill plate; 6. Drill base; 7. Lifting slide; 8. Lifting electric slider; 9. Lifting plate; 10. Moving slide; 11. Moving electric slider; 12. First connecting plate; 13. First slide; 14. First electric slider; 15. First clamping block; 16. Second electric slider; 17. First connecting block; 18. First electric extension rod; 19. Third electric slider; 20. Second connecting block; 21. Second electric extension rod; 22. Extension block; 23. Telescopic block; 24. First laser rangefinder sensor; 25. Rotary motor; 26. Second connecting plate; 27. Displacement slide; 28. Displacement electric slider; 29. ​​Second clamping block; 30. Electric lifting rod; 31. Third electric extension rod; 32. Second laser rangefinder sensor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-8 A CNC drilling device includes a machine body 1. The machine body 1 has an internal telescopic assembly 3 with its output end facing downwards and connected to a pressing block 4. A storage plate is located below the telescopic assembly 3 inside the machine body 1. A drilling plate 5 is connected to one side of the machine body 1 via a cylinder. Multiple drill bits 6 are evenly connected to the side of the drilling plate 5 facing the machine body 1. Drill bits are mounted on the drill bits 6. The drilling plate 5 has a first auxiliary mechanism and a second auxiliary mechanism. Lifting plates 9 are movably installed on both sides of the machine body 1, and each lifting plate 9 has a third auxiliary mechanism. The first auxiliary mechanism can detect the rotational stability of the drill bits, the second auxiliary mechanism can assist in the installation and removal of the drill bits, and the third auxiliary mechanism can cooperate with the first auxiliary mechanism to detect the installation stability of the pressing block 4.

[0021] As a technical optimization of the present invention, the first auxiliary mechanism includes an extension block 22 and a first laser rangefinder sensor 24. A guide rail 2 is mounted on the top of the drilling plate 5, and a second electric slider 16 is slidably mounted on the top of the guide rail 2. A first connecting block 17 is connected to the top of the second electric slider 16, and the extension block 22 is movably connected to the side of the first connecting block 17 near the machine tool body 1. The first laser rangefinder sensor 24 is embedded in the top of the extension block 22. By sliding the second electric slider 16 in the guide rail 2, the first connecting block 17 can be moved on the guide rail 2 according to different usage requirements. By moving the extension block 22 on the first connecting block 17, the first laser rangefinder sensor 24 can be used in different positions.

[0022] As a technical optimization of the present invention, a first electric extension rod 18 is installed on the side of the first connecting block 17 away from the machine tool body 1. The extension end of the first electric extension rod 18 faces the first connecting block 17, and the extension end of the first electric extension rod 18 movably passes through the first connecting block 17 and is movably connected to the extension block 22. The first electric extension rod 18 can drive the extension block 22 to extend according to different usage requirements.

[0023] As a technical optimization of the present invention, a rotary motor 25 is embedded and installed on the side of the extension block 22 near the first connecting block 17. The mounting end of the rotary motor 25 faces the first connecting block 17, and the mounting end of the rotary motor 25 is connected to the extension end of the first electric extension rod 18. The rotary motor 25 can drive the extension block 22 to rotate according to different usage requirements.

[0024] As a technical optimization of the present invention, the second auxiliary mechanism includes a second connecting plate 26 and a second clamping block 29. A third electric slider 19 is slidably mounted on the top of the guide rail 2. A second connecting block 20 is connected to the top of the third electric slider 19. A telescopic block 23 is movably connected to the side of the second connecting block 20 closest to the machine tool body 1. The second connecting plate 26 is movably connected to the bottom of the telescopic block 23. Two second clamping blocks 29 are movably mounted on the bottom of the second connecting plate 26. A second laser rangefinder sensor 32 is embedded on the side of the second connecting plate 26 away from the guide rail 2. By sliding the third electric slider 19 on the guide rail 2, the second connecting block 20 can be moved on the guide rail 2 according to different usage requirements. The telescopic block 23 can move on the second connecting block 20 according to different usage requirements, thereby driving the second connecting plate 26 to move within a preset stroke.

[0025] As a technical optimization of the present invention, a second electric extension rod 21 is installed on the side of the second connecting block 20 away from the machine tool body 1. The extension end of the second electric extension rod 21 faces the second connecting block 20, and the extension end of the second electric extension rod 21 movably passes through the second connecting block 20 and connects with the telescopic block 23. The second electric extension rod 21 can drive the telescopic block 23 to move according to different usage requirements.

[0026] As a technical optimization of the present invention, an electric lifting rod 30 is embedded in the bottom of the telescopic block 23, with the lifting end of the electric lifting rod 30 facing downwards. The lifting end of the electric lifting rod 30 is connected to the top of the second connecting plate 26. A displacement groove 27 is formed at the bottom of the second connecting plate 26, and a displacement electric slider 28 is installed on the top of the second clamping block 29. The displacement electric slider 28 is slidably installed inside the displacement groove 27. The electric lifting rod 30 can drive the second connecting plate 26 to move on the telescopic block 23 according to different usage requirements. By sliding the displacement electric slider 28 in the displacement groove 27, the second clamping block 29 can be moved on the second connecting plate 26 according to different usage requirements.

[0027] As a technical optimization of the present invention, lifting grooves 7 are provided on both sides of the inner wall of the machine tool body 1. A lifting electric slider 8 is installed on the side of the lifting plate 9 closest to the inner wall of the machine tool body 1, and the lifting electric slider 8 is slidably installed inside the lifting groove 7. By sliding the lifting electric slider 8 in the lifting groove 7, the lifting plate 9 can be moved inside the machine tool body 1 according to different usage requirements.

[0028] As a technical optimization of the present invention, the third auxiliary mechanism includes a first clamping block 15. A movable slide groove 10 is provided on the side of the lifting plate 9 away from the inner wall of the machine tool body 1. Two movable electric sliders 11 are slidably installed inside the movable slide groove 10. A first connecting plate 12 is connected to the side of the movable electric slider 11 away from the lifting plate 9. Two first clamping blocks 15 are movably installed on the side of the first connecting plate 12 away from the lifting plate 9. By sliding the movable electric sliders 11 in the movable slide groove 10, the first connecting plate 12 can be moved on the lifting plate 9 according to different usage requirements.

[0029] As a technical optimization of the present invention, the first connecting plate 12 has a first sliding groove 13 on the side away from the lifting plate 9. A third electric extension rod 31 is embedded and installed on the side of the first clamping block 15 near the first connecting plate 12. The mounting end of the third electric extension rod 31 faces the first connecting plate 12, and the mounting end of the third electric extension rod 31 is connected to a first electric slider 14. The first electric slider 14 is slidably installed inside the first sliding groove 13. The sliding of the first electric slider 14 in the first sliding groove 13 can drive the first clamping block 15 to move on the first connecting plate 12 according to different usage requirements.

[0030] In use, all electrical equipment in this device is powered by an external power source connected via wires. The device controls the electrical equipment through a preset control system. The machine tool body 1, telescopic component 3, extrusion block 4, drilling plate 5, and drill base 6 used in this device are all existing mature technologies, so they will not be described in detail. The drill bit is connected to the clamping piston rod driven by the cylinder on the drill base 6. This connection method is also existing mature technology, so it will not be described in detail. The first laser ranging sensor 24 used in this device is also existing mature technology, so it will not be described in detail. The machine tool body 1 has a loading robot on the side away from the drilling plate 5. The loading robot is also existing mature technology, so it will not be described in detail.

[0031] When the sheet material needs processing, a loading robot pushes the sheet material to the top of the shelf below the extrusion block 4. Then, the telescopic component 3 moves the extrusion block 4 downwards to abut against the top of the sheet material, securing it on the shelf. Next, a cylinder drives the drilling plate 5 towards the sheet material, and the drive component on the drill base 6 rotates the drill bit, causing it to drill holes in the sheet material. The drilling plate 5 then moves the drill base 6 and drill bit away from the sheet material. Finally, the shelf is flipped downwards on the side away from the drilling plate 5, causing the sheet material to slide down, completing the lowering of the drilled sheet material. Figure 7 As shown, the plate is placed on top of the shelf and the bottom of the pressing block 4 abuts against the top of the plate. Both ends of the shelf are rotatably connected to the connecting components, and the bottom of the shelf is flipped by the extension and retraction of the cylinder telescopic rod. This method is a mature existing technology, so it will not be elaborated further.

[0032] When deformation detection of the drill base 6 and drill bit is required, the extension block 22 is rotated by the rotary motor 25, causing the first laser rangefinder 24 to rotate to a downward-facing position. Then, the extension block 22 can be moved to different positions above the drill base 6 by the second electric slider 16 sliding on the guide rail 2. Combined with the extension block 22 being extended by the first electric extension rod 18, the first laser rangefinder 24 can detect the distance between the drill bit and the extension block 22 at different positions of the drill bit. By rotating the drill bit and combining the above detection methods, the distance between the drill bit and the extension block 22 can be detected, and the detected distance value is uploaded to the background control system for comparison with standard data values. If the detected data value exceeds the standard data value range, it indicates that the drill bit has deformed.

[0033] When the equipment space is limited and it is not convenient for workers to change parts, the drill bit needs to be disassembled and replaced. The drill bit is disassembled by releasing the clamp piston rod on the drill base 6, which is driven by a cylinder, and then pulling the drill bit outwards. At this time, the third electric slider 19 slides on the guide rail 2, moving the second connecting block 20 to the drill bit to be replaced. Then, the second electric extension rod 21 drives the telescopic block 23 to extend, causing the second connecting plate 26 to extend above the drill bit. Finally, the electric lifting rod 30 moves the second connecting plate 26 towards... The second connecting plate 26 extends to a preset position above the drill bit. Then, the displacement slider 28 slides in the displacement groove 27, causing the two second clamping blocks 29 to move closer to each other and clamp the drill bit. Next, the second electric extension rod 21 drives the telescopic block 23 to extend, which can assist in the disassembly of the drill bit from the drill base 6. Furthermore, the second electric extension rod 21 can continue to extend, allowing the second clamping blocks 29 to move the drill bit to the outside of the machine tool body 1, making it convenient for workers to recycle old drill bits. When a new drill bit needs to be installed, the telescopic block 23 clamps the removed old drill bit and extends it to... Figure 8 As shown on the right, away from the drilling plate 5, after the worker removes the old drill bit, the new drill bit is clamped by the second clamping block 29. The new drill bit is clamped and fixed in the same way that the old drill bit was clamped on the telescopic block 23. Then the telescopic block 23 moves closer to the drill base 6, which allows the new drill bit to be inserted into the drill base 6. Then the clamping piston in the drill base 6 completes the clamping of the drill bit. Through this operation, the automatic installation of the drill bit can be completed.

[0034] When it is necessary to test the flatness of the bottom of the extrusion block 4, the extrusion block 4 rises to the preset use position. Then, by rotating the extension block 22, the first laser range sensor 24 rotates to the upward use state. Subsequently, the extension block 22 moves to the bottom of the extrusion block 4 and moves accordingly. During the movement, the first laser range sensor 24 detects the distance between the extension block 22 and the bottom of the extrusion block 4 and transmits the detected data value to the background control system for comparison with the standard data value. If the detected data value exceeds the standard data value range, it indicates that the bottom of the extrusion block 4 is not flat.

[0035] When it is necessary to test the installation stability of the extrusion block 4, the extrusion block 4 is moved to a preset position on one side of the machine tool body 1. Then, the lifting electric slider 8 slides in the lifting slide groove 7, causing the lifting plate 9 to move to the preset use position. Next, the moving electric slider 11 slides in the moving slide groove 10, causing the first connecting plate 12 to move to the preset use position. Then, the first electric slider 14 slides in the first slide groove 13, allowing the first clamping block 15 to clamp the extrusion block 4. Then, the extension block 22 drives the first laser ranging sensor 24 to move to the bottom of the extrusion block 4. Then, the first clamping block 15 clamps the extrusion block 4 and shakes it up and down. While shaking the extrusion block 4, the first laser ranging sensor 24 detects the distance between the extension block 22 and the extrusion block 4 and transmits the detected distance value to the background control system in real time for comparison with the standard data value. If the detected data value exceeds the standard data value range, it indicates that the installation of the extrusion block 4 is loose.

[0036] When it is necessary to test the installation stability of the plate installed on the extrusion block 4, the two first connecting plates 12 on the lifting plate 9 are moved to the two sides of the plate respectively. Then, the first clamping block 15 is extended to the preset position by the third electric extension rod 31. Then, the first clamping block 15 on the two first connecting plates 12 can abut against the two sides of the plate by the sliding of the moving electric slider 11 in the moving slide groove 10. Then, the second connecting plate 26 is extended downward by the electric lifting rod 30 so that the second laser ranging sensor 32 can face one side of the plate. Then, the first connecting plate 12 slides on the lifting plate 9 to complete the extrusion and shaking of the plate by the first clamping block 15. During this period, the second laser ranging sensor 32 detects the change in the distance between the second connecting plate 26 and the plate and transmits the detection data value to the background control system for comparison with the standard data value. If the detection data value exceeds the range of the marked data value, it indicates that the plate has become loose during the extrusion process, which indicates that the installation of the plate is unstable.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A CNC drilling device, comprising a machine tool body (1), characterized in that, The machine tool body (1) is provided with a telescopic component (3) inside. The output end of the telescopic component (3) faces downward and is connected to a pressing block (4). The machine tool body (1) is provided with a storage plate below the telescopic component (3) inside. A drilling plate (5) is connected to one side of the machine tool body (1) through a cylinder. Multiple through drill seats (6) are evenly connected to the side of the drilling plate (5) facing the machine tool body (1). Drill bits are provided on the drill seats (6). A first auxiliary mechanism and a second auxiliary mechanism are provided on the drilling plate (5). Lifting plates (9) are movably installed on both sides of the machine tool body (1). A third auxiliary mechanism is provided on the lifting plate (9).

2. The CNC drilling device according to claim 1, characterized in that, The first auxiliary mechanism includes an extension block (22) and a first laser ranging sensor (24). A guide rail (2) is installed on the top of the drilling plate (5). A second electric slider (16) is slidably installed on the top of the guide rail (2). A first connecting block (17) is connected to the top of the second electric slider (16). An extension block (22) is movably connected to the side of the first connecting block (17) near the machine tool body (1). The first laser ranging sensor (24) is embedded in the top of the extension block (22).

3. The CNC drilling device according to claim 2, characterized in that, The first electric extension rod (18) is installed on the side of the first connecting block (17) away from the machine tool body (1). The extension end of the first electric extension rod (18) faces the first connecting block (17), and the extension end of the first electric extension rod (18) moves through the first connecting block (17) and is movably connected to the extension block (22).

4. A CNC drilling device according to claim 3, characterized in that, A rotary motor (25) is embedded in the side of the extension block (22) near the first connecting block (17). The mounting end of the rotary motor (25) faces the first connecting block (17), and the mounting end of the rotary motor (25) is connected to the extension end of the first electric extension rod (18).

5. A CNC drilling device according to claim 1, characterized in that, The second auxiliary mechanism includes a second connecting plate (26) and a second clamping block (29). A third electric slider (19) is slidably installed on the top of the guide rail (2). A second connecting block (20) is connected to the top of the third electric slider (19). A telescopic block (23) is movably connected to the side of the second connecting block (20) near the machine tool body (1). A second connecting plate (26) is movably connected to the bottom of the telescopic block (23). Two second clamping blocks (29) are movably installed on the bottom of the second connecting plate (26). A second laser rangefinder (32) is embedded on the side of the second connecting plate (26) away from the guide rail (2).

6. A CNC drilling device according to claim 5, characterized in that, The second connecting block (20) is equipped with a second electric extension rod (21) on the side away from the machine tool body (1). The extension end of the second electric extension rod (21) faces the second connecting block (20), and the extension end of the second electric extension rod (21) moves through the second connecting block (20) and connects with the telescopic block (23).

7. A CNC drilling device according to claim 5, characterized in that, An electric lifting rod (30) is embedded in the bottom of the telescopic block (23). The lifting end of the electric lifting rod (30) faces downward. The lifting end of the electric lifting rod (30) is connected to the top of the second connecting plate (26). A displacement groove (27) is provided at the bottom of the second connecting plate (26). A displacement electric slider (28) is installed on the top of the second clamping block (29). The displacement electric slider (28) is slidably installed inside the displacement groove (27).

8. A CNC drilling device according to claim 1, characterized in that, The machine tool body (1) has lifting slide grooves (7) on both sides of its inner wall. The lifting plate (9) is equipped with a lifting electric slider (8) on the side of the inner wall of the machine tool body (1). The lifting electric slider (8) is slidably installed inside the lifting slide groove (7).

9. A CNC drilling device according to claim 1, characterized in that, The third auxiliary mechanism includes a first clamping block (15), and a movable slide groove (10) is provided on the side of the lifting plate (9) away from the inner wall of the machine tool body (1). Two movable electric sliders (11) are slidably installed inside the movable slide groove (10). A first connecting plate (12) is connected to the side of the movable electric slider (11) away from the lifting plate (9). Two first clamping blocks (15) are movably installed on the side of the first connecting plate (12) away from the lifting plate (9).

10. A CNC drilling device according to claim 1, characterized in that, The first connecting plate (12) has a first groove (13) on the side away from the lifting plate (9). The first clamping block (15) is embedded with a third electric extension rod (31) on the side close to the first connecting plate (12). The mounting end of the third electric extension rod (31) faces the first connecting plate (12). The mounting end of the third electric extension rod (31) is connected to a first electric slider (14). The first electric slider (14) is slidably installed inside the first groove (13).

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