Numerical control header drilling machine for boiler machining

Abstract

The invention relates to the technical field of numerical control equipment, in particular to a numerical control header drilling machine for boiler machining, which comprises a plurality of positioning seats, header pipes are supported and limited by the positioning seats, two ends of the header pipes are clamped and positioned through clamping assemblies, a horizontal moving assembly is arranged on the upper portions of the header pipes, and a mainframe box and the positioning seats are mounted at one end of the horizontal moving assembly. A V-shaped supporting groove is formed in the top of the positioning base, an opening is formed in the bottom of the V-shaped supporting groove, a lifting plate is arranged in the positioning base, a lifting air cylinder is installed at the bottom of the lifting plate, a driving wheel is arranged in the middle of the lifting plate and driven by a driving motor to rotate, and a punching assembly is installed at the bottom of the horizontal moving assembly. According to the numerical control header drilling machine for boiler machining, the V-shaped supporting groove formed in the positioning base is matched with the header pipe in shape, and it is guaranteed that the header pipe is accurately placed and positioned. And due to the design of the anti-skid plates on the inner walls of the V-shaped supporting grooves, sliding of the header pipe in the punching process is effectively prevented, and the positioning precision is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control equipment, in particular to a numerical control header drilling machine for boiler machining. Background Art

[0002] In the boiler processing industry, the manufacture of headers is a key link, which involves the precise punching of header tubes. Traditional punching processes often rely on manual operations, which are not only inefficient, but also difficult to ensure the punching accuracy, making it difficult to meet the high-precision requirements of modern industrial production. With the rapid development of CNC technology, CNC drilling machines are gradually used in various mechanical processing fields, providing new solutions for improving the production efficiency and processing accuracy of the boiler processing industry.

[0003] The invention patent with patent application number 201410710961.1 discloses a CNC drilling machine for header pipes. The invention includes a CNC system and a workbench. The workbench is provided with a workpiece clamping device and at least one set of drilling devices. The drilling device includes a column arranged on the workbench for movement along the X-axis, a power head arranged on the column for movement along the Y-axis, a driving mechanism I for driving the column to move on the workbench, and a driving mechanism II for driving the power head to move on the column. The invention uses mechanical action to replace manual labor, with fast loading and unloading speeds and high workpiece processing efficiency. The invention is easy to realize automation: the operation is very convenient, and a large amount of manpower and time can be saved, thereby achieving the purpose of improving production efficiency and reducing labor intensity.

[0004] However, the CNC drilling machine of the above patent still has problems such as inaccurate positioning, insufficient clamping force and poor cooling effect during drilling when drilling special workpieces such as header pipes, which affects the drilling quality and production efficiency, and the angle and position adjustment during drilling is not convenient. Therefore, the development of a CNC header drilling machine specifically for boiler processing that can achieve precise positioning, stable clamping and good cooling effect is of great significance to improving the overall technical level and production efficiency of the boiler processing industry. Summary of the invention

[0005] The purpose of the present invention is to provide a CNC header drilling machine for boiler processing, so as to solve the problems of inaccurate positioning, insufficient clamping force and poor cooling effect during the drilling process when the existing CNC drilling machines mentioned in the above background technology are used to drill holes in special workpieces such as header pipes, thereby affecting the drilling quality and production efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides a CNC manifold drilling machine for boiler processing, including a plurality of positioning seats, which support and limit the manifold pipe, and the two ends of the manifold pipe are clamped and positioned by clamping assemblies, and a horizontal moving assembly is arranged on the upper part of the manifold pipe, and a main box is installed at one end of the horizontal moving assembly, and a V-shaped support groove is arranged on the top of the positioning seat, and an opening is arranged on the bottom of the V-shaped support groove, and a lifting plate is arranged inside the positioning seat, and a lifting cylinder is installed on the bottom of the lifting plate, and a driving wheel is arranged in the middle of the lifting plate, and the driving wheel is driven to rotate by a driving motor, and a punching assembly is installed on the bottom of the horizontal moving assembly.

[0007] As a preferred solution of the present invention, an anti-skid plate is installed on the inner wall of the V-shaped support groove.

[0008] As a preferred embodiment of the present invention, the clamping assembly includes a support seat, a screw rod is installed inside the support seat, a first screw rod slider is arranged on the screw rod, a clamping block is symmetrically arranged on the top of the support seat, a strip hole is arranged on the top of the support seat, the top of the first screw rod slider passes through the strip hole and is welded and fixed to the bottom of the clamping block, and one end of the screw rod is driven to rotate by a screw motor.

[0009] As a preferred solution of the present invention, a limiting plate is installed on the top of one side of the clamping block, and the outer side wall of the limiting plate is an inwardly concave arc surface structure.

[0010] As a preferred solution of the present invention, a vertical drive motor is installed inside the main box, a lifting drive screw is installed on the top of the vertical drive motor, and a lifting block is installed on the lifting drive screw.

[0011] As a preferred embodiment of the present invention, the horizontal moving assembly includes a horizontal rod, a horizontal screw rod is installed inside the horizontal rod, a second screw rod slider is installed on the horizontal screw rod, a strip hole is provided at the bottom of the horizontal rod, the bottom of the second screw rod slider passes through the strip hole and is installed with a mounting plate, the bottom of the mounting plate is connected to the punching assembly, and one end of the horizontal screw rod is driven by a horizontal drive motor.

[0012] As a preferred solution of the present invention, a lifting guide port is provided on one side of the main chassis, the horizontal rod passes through the lifting guide port, and the horizontal rod is vertically slidably matched with the lifting guide port.

[0013] As a preferred embodiment of the present invention, the punching assembly includes a water tank, one side of the water tank is connected to a water filling pipe, a drilling machine is installed at the bottom of the water tank, a water pipe is installed at the bottom of the water tank, a nozzle is installed at the bottom end of the water pipe, and a baffle is installed on the outer side of the bottom of the water tank.

[0014] As a preferred solution of the present invention, a water pump is installed on the inner bottom surface of the water storage tank, and the output end of the water pump is connected to a water pipe.

[0015] As a preferred solution of the present invention, the positioning seats are arranged in parallel with equal spacing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the CNC header drilling machine for boiler processing, the V-shaped support groove set on the positioning seat matches the shape of the header pipe, ensuring the accurate placement and positioning of the header pipe. At the same time, the anti-slip plate design on the inner wall of the V-shaped support groove effectively prevents the header pipe from sliding during the drilling process, further improving the positioning accuracy.

[0018] 2. In the CNC header drilling machine for boiler processing, the clamping assembly adopts a screw drive mode. Through the precise control of the screw motor, the clamping block can stably clamp the two ends of the header pipe. The design of the limit plate effectively prevents the deviation of the header pipe during the clamping process, ensuring the stability of the drilling process. The water storage tank and water pump design in the drilling assembly provide a continuous cooling water source for the drilling process.

[0019] 3. In the CNC header drilling machine for boiler processing, the nozzle sprays cooling water directly to the drilling part, which effectively reduces the temperature and friction during the drilling process, extends the service life of the drilling machine, and improves the drilling quality. The entire CNC header drilling machine adopts CNC technology to achieve full automatic control of the drilling process. The design of the horizontal moving component and the vertical drive motor enables the drilling component to move accurately in three-dimensional space, meeting the drilling needs of different positions and angles, and significantly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the clamping assembly in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the positioning seat in the present invention;

[0024] Figure 5 It is a schematic diagram of the external structure of the punching assembly in the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the punching assembly in the present invention;

[0026] The meaning of each number in the figure is:

[0027] 1. Positioning seat; 11. V-shaped support groove; 12. Anti-skid plate; 13. Opening; 14. Lifting plate; 15. Lifting cylinder; 16. Driving wheel; 17. Driving motor; 2. Clamping assembly; 21. Support seat; 22. Screw rod; 23. First screw rod slider; 24. Clamping block; 25. Limiting plate; 26. Screw rod motor; 3. Main chassis; 31. Lifting guide port; 32. Vertical drive motor; 321. Lifting drive screw rod; 33. Lifting block; 4. Horizontal moving assembly; 41. Horizontal rod; 42. Horizontal screw rod; 43. Second screw rod slider; 44. Horizontal drive motor; 45. Mounting plate; 5. Punching assembly; 51. Water tank; 511. Water supply pipe; 52. Drilling machine; 53. Shielding plate; 54. Water pipe; 55. Sprinkler; 56. Water pump. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] The present invention provides a numerically controlled header drilling machine for boiler machining, such as Figure 1-Figure 6As shown, it includes several positioning seats 1, which support and limit the header pipe. The two ends of the header pipe are clamped and positioned by the clamping assembly 2. The upper part of the header pipe is provided with a horizontal moving assembly 4, and one end of the horizontal moving assembly 4 is installed with a main box 3. The top of the positioning seat 1 is provided with a V-shaped support groove 11, and the bottom of the V-shaped support groove 11 is provided with an opening 13. The interior of the positioning seat 1 is provided with a lifting plate 14, and the bottom of the lifting plate 14 is provided with a lifting cylinder 15. The middle of the lifting plate 14 is provided with a driving wheel 16, and the driving wheel 16 is driven to rotate by a driving motor 17. The bottom of the horizontal moving assembly 4 is installed with a punching assembly 5. The V-shaped support groove 11 on the positioning seat 1 is designed to match the shape of the header pipe, providing stable support and limiting for the header pipe, and ensuring the position accuracy during the punching process. The clamping assembly 2 clamps and positions the two ends of the header pipe, effectively preventing the movement or offset of the header pipe during the punching process, and ensuring the accuracy and stability of the punching. The setting of the horizontal moving component 4 enables the punching component 5 to move flexibly in the horizontal direction to adapt to the punching requirements at different positions, thereby improving the versatility and flexibility of the equipment. The punching component 5 is directly installed at the bottom of the horizontal moving component 4, realizing the integration of the punching function, simplifying the equipment structure, and improving the punching efficiency. The design of the lifting plate 14 and the driving wheel 16 inside the positioning seat 1 makes it possible to lift and rotate the header pipe, further expanding the processing capacity of the equipment and meeting more complex punching requirements.

[0031] In this embodiment, an anti-skid plate 12 is installed on the inner wall of the V-shaped support groove 11, which can play a good anti-skid effect when supporting the header pipe.

[0032] Specifically, the clamping assembly 2 includes a support seat 21, a screw rod 22 is installed inside the support seat 21, a first screw rod slider 23 is arranged on the screw rod 22, a clamping block 24 is symmetrically arranged on the top of the support seat 21, a strip hole is arranged on the top of the support seat 21, the top of the first screw rod slider 23 passes through the strip hole and is welded and fixed to the bottom of the clamping block 24, one end of the screw rod 22 is driven to rotate by a screw motor 26, and the support seat 21 serves as the basis of the clamping assembly, providing a stable support for the screw rod 22 and the clamping block 24, ensuring stability during the clamping process. The cooperation between the screw rod 22 and the first screw rod slider 23 realizes precise linear transmission. The screw rod 22 is divided into two parts with opposite thread directions. When the screw motor 26 drives the screw rod 22 to rotate, the two first screw rod sliders 23 can approach or move away along the screw rod 22, thereby driving the clamping block 24 to perform clamping or loosening operations. The clamping blocks 24 symmetrically arranged on the top of the support seat 21 can evenly clamp the two ends of the header pipe, avoiding deflection or instability during the clamping process and ensuring the accuracy of the punching. The strip hole design on the top of the support seat 21 allows the first screw slider 23 to make necessary displacement adjustments during the clamping process while maintaining a stable connection with the clamping block 24, thereby enhancing the adaptability and flexibility of the clamping assembly.

[0033] Furthermore, a limiting plate 25 is installed on the top of one side of the clamping block 24. The outer side wall of the limiting plate 25 is an inwardly concave arc surface structure, which fits with the outer wall of the header pipe to ensure the positioning operation.

[0034] Furthermore, a vertical drive motor 32 is installed inside the main chassis 3, a lifting drive screw 321 is installed on the top of the vertical drive motor 32, a lifting block 33 is installed on the lifting drive screw 321, and the outer side of the lifting block 33 is connected to the horizontal moving component 4 to facilitate the lifting operation of the horizontal moving component 4.

[0035] Example 2

[0036] The present invention also provides a numerically controlled header drilling machine for boiler machining, such as Figure 1-Figure 6As shown, it includes several positioning seats 1, which support and limit the header pipe. The two ends of the header pipe are clamped and positioned by the clamping assembly 2. The upper part of the header pipe is provided with a horizontal moving assembly 4, and one end of the horizontal moving assembly 4 is installed with a main box 3. The top of the positioning seat 1 is provided with a V-shaped support groove 11, and the bottom of the V-shaped support groove 11 is provided with an opening 13. The interior of the positioning seat 1 is provided with a lifting plate 14, and the bottom of the lifting plate 14 is provided with a lifting cylinder 15. The middle of the lifting plate 14 is provided with a driving wheel 16, and the driving wheel 16 is driven to rotate by a driving motor 17. The bottom of the horizontal moving assembly 4 is installed with a punching assembly 5. The V-shaped support groove 11 on the positioning seat 1 is designed to match the shape of the header pipe, providing stable support and limiting for the header pipe, and ensuring the position accuracy during the punching process. The clamping assembly 2 clamps and positions the two ends of the header pipe, effectively preventing the movement or offset of the header pipe during the punching process, and ensuring the accuracy and stability of the punching. The setting of the horizontal moving component 4 enables the punching component 5 to move flexibly in the horizontal direction to adapt to the punching requirements at different positions, thereby improving the versatility and flexibility of the equipment. The punching component 5 is directly installed at the bottom of the horizontal moving component 4, realizing the integration of the punching function, simplifying the equipment structure, and improving the punching efficiency. The design of the lifting plate 14 and the driving wheel 16 inside the positioning seat 1 makes it possible to lift and rotate the header pipe, further expanding the processing capacity of the equipment and meeting more complex punching requirements.

[0037] In this embodiment, an anti-skid plate 12 is installed on the inner wall of the V-shaped support groove 11, which can play a good anti-skid effect when supporting the header pipe.

[0038] Specifically, the clamping assembly 2 includes a support seat 21, a screw rod 22 is installed inside the support seat 21, a first screw rod slider 23 is arranged on the screw rod 22, a clamping block 24 is symmetrically arranged on the top of the support seat 21, a strip hole is arranged on the top of the support seat 21, the top of the first screw rod slider 23 passes through the strip hole and is welded and fixed to the bottom of the clamping block 24, one end of the screw rod 22 is driven to rotate by a screw motor 26, and the support seat 21 serves as the basis of the clamping assembly, providing a stable support for the screw rod 22 and the clamping block 24, ensuring stability during the clamping process. The cooperation between the screw rod 22 and the first screw rod slider 23 realizes precise linear transmission. The screw rod 22 is divided into two parts with opposite thread directions. When the screw motor 26 drives the screw rod 22 to rotate, the two first screw rod sliders 23 can approach or move away along the screw rod 22, thereby driving the clamping block 24 to perform clamping or loosening operations. The clamping blocks 24 symmetrically arranged on the top of the support seat 21 can evenly clamp the two ends of the header pipe, avoiding deflection or instability during the clamping process and ensuring the accuracy of the punching. The strip hole design on the top of the support seat 21 allows the first screw slider 23 to make necessary displacement adjustments during the clamping process while maintaining a stable connection with the clamping block 24, thereby enhancing the adaptability and flexibility of the clamping assembly.

[0039] Furthermore, a limiting plate 25 is installed on the top of one side of the clamping block 24. The outer side wall of the limiting plate 25 is an inwardly concave arc surface structure, which fits with the outer wall of the header pipe to ensure the positioning operation.

[0040] Furthermore, a vertical drive motor 32 is installed inside the main chassis 3, a lifting drive screw 321 is installed on the top of the vertical drive motor 32, a lifting block 33 is installed on the lifting drive screw 321, and the outer side of the lifting block 33 is connected to the horizontal moving component 4 to facilitate the lifting operation of the horizontal moving component 4.

[0041] Furthermore, the horizontal moving component 4 includes a horizontal rod 41, a horizontal screw rod 42 is installed inside the horizontal rod 41, a second screw rod slider 43 is installed on the horizontal screw rod 42, a strip hole is provided at the bottom of the horizontal rod 41, the bottom of the second screw rod slider 43 passes through the strip hole and is installed with a mounting plate 45, the bottom of the mounting plate 45 is connected to the punching component 5, one end of the horizontal screw rod 42 is driven by a horizontal driving motor 44, so as to facilitate the horizontal movement of the punching component 5 and facilitate the punching operation at different positions.

[0042] Furthermore, a lifting guide opening 31 is provided on one side of the main chassis 3 , and the horizontal rod 41 passes through the lifting guide opening 31 , and the horizontal rod 41 is vertically slidably matched with the lifting guide opening 31 .

[0043] Furthermore, the drilling assembly 5 includes a water tank 51, one side of the water tank 51 is connected to a water supply pipe 511, a drilling machine 52 is installed at the bottom of the water tank 51, a water pipe 54 is installed at the bottom of the water tank 51, a nozzle 55 is installed at the bottom end of the water pipe 54, and a baffle plate 53 is installed on the outer side of the bottom of the water tank 51.

[0044] Furthermore, a water pump 56 is installed on the inner bottom surface of the water storage tank 51, and the output end of the water pump 56 is connected to the water pipe 54, so as to facilitate real-time cooling of the drilled hole.

[0045] Furthermore, the positioning seats 1 are arranged in parallel with equal spacing to ensure stable support for the header pipes.

[0046] It is worth noting that the horizontal moving component 4 realizes the flexible and precise movement of the punching component 5 in the horizontal direction through the precise cooperation of the horizontal screw rod 42 and the second screw rod slider 43. This design enables the device to easily adapt to the punching requirements of different positions, significantly improving the versatility of the device and the convenience of the punching operation. The lifting guide port 31 set on one side of the main chassis 3 ensures the stability and guidance of the horizontal rod 41 during the lifting process. This design enables the horizontal moving component 4 to smoothly perform lifting and lowering movements, thereby ensuring the stability and accuracy of the punching component 5 during the punching process. The punching component 5 integrates multiple functional components such as a water storage tank 51, a drilling machine 52, a water pipe 54 and a nozzle 55, realizing the integrated operation of drilling and cooling. This design not only simplifies the equipment structure, but also improves the drilling efficiency, ensures the cooling effect during the drilling process, and extends the service life of the drilling machine. The water pump 56 installed on the bottom surface of the water storage tank 51 is connected to the nozzle 55 through the water pipe 54, realizing the real-time cooling operation of the drilling location. This design effectively prevents the heat generated during the drilling process from adversely affecting the header pipe and the drilling machine, further improving the drilling quality and equipment stability. The positioning seat 1 is arranged in parallel and equidistantly, providing stable and uniform support for the header pipe. This design ensures the position accuracy of the header pipe during the drilling process, effectively preventing drilling deviation or damage caused by unstable support, and improving the overall processing quality and efficiency.

[0047] When the numerical control header drilling machine for boiler processing of the present invention is used, the header pipe to be processed is first placed in the V-shaped support groove 11 of the positioning seat 1. The design of the V-shaped support groove 11 matches the shape of the header pipe, providing stable support and position limiting for it. At the same time, the anti-slip plate 12 installed on the inner wall of the V-shaped support groove 11 has a good anti-slip effect, ensuring the position accuracy of the header pipe during the drilling process.

[0048] Next, start the clamping assembly 2 to clamp and position the two ends of the manifold. The support seat 21 in the clamping assembly 2 provides stable support for the screw 22 and the clamping block 24. The cooperation between the screw 22 and the first screw slider 23 realizes precise linear transmission. When the screw motor 26 drives the screw 22 to rotate, the two first screw sliders 23 can move closer or farther along the screw 22, thereby driving the clamping block 24 to clamp or release. The limit plate 25 installed on the top of one side of the clamping block 24 fits the outer wall of the manifold to ensure the accuracy of the positioning operation.

[0049] Then, according to the punching position requirements, the horizontal moving assembly 4 is started to drive the punching assembly 5 to move horizontally. The cooperation between the horizontal screw rod 42 and the second screw rod slider 43 in the horizontal moving assembly 4 realizes the flexible movement of the punching assembly 5 in the horizontal direction. The horizontal driving motor 44 drives the horizontal screw rod 42 to rotate, thereby driving the second screw rod slider 43 and the mounting plate 45 to move horizontally, which is convenient for punching operations at different positions.

[0050] During the drilling process, the water tank 51 in the drilling assembly 5 provides cooling water for the drilling machine 52. The water pump 56 transports the water in the water tank 51 to the nozzle 55 through the water pipe 54, and performs a real-time cooling operation on the drilling site. The shielding plate 53 plays a role in shielding water splashes and debris.

[0051] Finally, when the punching is completed, the height of the punching assembly 5 can be adjusted by the lifting assembly to facilitate the operation of the next punching position. The vertical drive motor 32 in the lifting assembly drives the lifting drive screw 321 to rotate, thereby driving the lifting block 33 and the horizontal moving assembly 4 to perform lifting operations. At the same time, the lifting guide port 31 set on one side of the main box 3 ensures the stability of the horizontal rod 41 during the lifting process.

[0052] Finally, it should be noted that the electronic components of the horizontal drive motor 44, the vertical drive motor 32, etc. in this embodiment are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the field.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A numerically controlled header drilling machine for boiler machining, comprising a plurality of positioning seats (1), characterized in that: The positioning seat (1) supports and limits the collection tube, and the two ends of the collection tube are clamped and positioned by the clamping assembly (2). A horizontal moving assembly (4) is arranged on the upper part of the collection tube, and a main box (3) is installed on one end of the horizontal moving assembly (4). The top of the positioning seat (1) is provided with a V-shaped support groove (11), and the bottom of the V-shaped support groove (11) is provided with an opening (13). A lifting plate (14) is arranged inside the positioning seat (1), and a lifting cylinder (15) is installed at the bottom of the lifting plate (14). A driving wheel (16) is arranged in the middle of the lifting plate (14), and the driving wheel (16) is driven to rotate by a driving motor (17). A punching assembly (5) is installed at the bottom of the horizontal moving assembly (4).

2. The CNC header drilling machine for boiler machining according to claim 1 is characterized in that: An anti-skid plate (12) is installed on the inner wall of the V-shaped supporting groove (11).

3. The CNC header drilling machine for boiler machining according to claim 1 is characterized in that: The clamping assembly (2) comprises a support seat (21), a screw rod (22) is installed inside the support seat (21), a first screw rod slider (23) is arranged on the screw rod (22), a clamping block (24) is symmetrically arranged on the top of the support seat (21), a strip hole is arranged on the top of the support seat (21), the top of the first screw rod slider (23) passes through the strip hole and is welded and fixed to the bottom of the clamping block (24), and one end of the screw rod (22) is driven to rotate by a screw motor (26).

4. The CNC header drilling machine for boiler machining according to claim 3 is characterized in that: A limiting plate (25) is installed on the top of one side of the clamping block (24), and the outer side wall of the limiting plate (25) is an inwardly concave arc surface structure.

5. The CNC header drilling machine for boiler machining according to claim 1 is characterized in that: A vertical drive motor (32) is installed inside the main chassis (3), a lifting drive screw rod (321) is installed on the top of the vertical drive motor (32), and a lifting block (33) is installed on the lifting drive screw rod (321).

6. The CNC header drilling machine for boiler machining according to claim 5 is characterized in that: The horizontal moving assembly (4) comprises a horizontal rod (41), a horizontal screw rod (42) is installed inside the horizontal rod (41), a second screw rod slider (43) is installed on the horizontal screw rod (42), a strip hole is arranged at the bottom of the horizontal rod (41), the bottom of the second screw rod slider (43) passes through the strip hole and is installed with a mounting plate (45), the bottom of the mounting plate (45) is connected to the punching assembly (5), and one end of the horizontal screw rod (42) is driven by a horizontal driving motor (44).

7. The CNC header drilling machine for boiler machining according to claim 6 is characterized in that: A lifting guide opening (31) is provided on one side of the main chassis (3), the horizontal rod (41) passes through the lifting guide opening (31), and the horizontal rod (41) is vertically slidably matched with the lifting guide opening (31).

8. The CNC header drilling machine for boiler machining according to claim 7 is characterized in that: The punching assembly (5) comprises a water tank (51), one side of the water tank (51) is connected to a water supply pipe (511), a drilling machine (52) is installed at the bottom of the water tank (51), a water pipe (54) is installed at the bottom of the water tank (51), a nozzle (55) is installed at the bottom end of the water pipe (54), and a shielding plate (53) is installed on the outer side of the bottom of the water tank (51).

9. The CNC header drilling machine for boiler machining according to claim 8, characterized in that: A water pump (56) is installed on the inner bottom surface of the water storage tank (51), and the output end of the water pump (56) is connected to the water pipe (54).

10. The CNC header drilling machine for boiler machining according to claim 1, characterized in that: The positioning seats (1) are arranged in parallel and at equal intervals.

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