Numerical control plate and pipe integrated water cutting machine

By designing a pipe-cutting mechanism and auxiliary support device in the CNC waterjet cutting machine, the problems of deflection and inconvenience in fixing pipes during cutting were solved, achieving high-precision cutting of plates and pipes and improving the stability and safety of the equipment.

CN223532241UActive Publication Date: 2025-11-11KUNSHAN JIUFENG FENGWEITE INCISION EQUIP CO LTD
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Patent Information

Application Number
CN202422661773.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-11-11
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

Existing CNC waterjet cutting machines cannot simultaneously guarantee the cutting accuracy and stability of plates and pipes. In particular, pipes are prone to deflection during cutting and are difficult to fix, affecting cutting accuracy and equipment stability.

Method used

A CNC integrated plate and pipe waterjet cutting machine was designed, including a pipe cutting mechanism. By using the drive device and auxiliary support device in the auxiliary water tank and increasing the length of the Y-beam in the main beam, the pipe fittings can be stably clamped and cut. The pipe cutting mechanism is located inside the main beam to prevent the sand and water from the jet cutting head from splashing out.

Benefits of technology

This improved the cutting accuracy and stability of the equipment, ensuring stable clamping of pipe fittings and safety during the cutting process, thus enhancing both processing efficiency and safety.

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Abstract

The utility model relates to a numerical control plate and pipe integrated water-jet cutting machine which comprises a water-jet cutting machine tool which is composed of a girder, a main water tank arranged in the girder, a cross beam erected on the girder, a Z shaft arranged on the cross beam and a jet cutting head arranged on the Z shaft. A pipe cutting mechanism is arranged at the position, located at the rear end of the main water tank, in the girder and comprises an auxiliary water tank with an opening in the top, a driving device used for clamping pipe parts is arranged outside one end of the auxiliary water tank, and the driving device and the auxiliary water tank are arranged side by side in the left-right direction. An auxiliary supporting device used for supporting the pipe fitting part is arranged in the auxiliary water tank. According to the numerical control plate and pipe integrated water cutting machine, the pipe cutting mechanism is arranged behind the main water tank, the stability of the cross beam is not affected, the overall cutting precision is improved, the pipe cutting part is located on the inner side of the cross beam, sand water ejected by the ejection cutting head can be effectively prevented from splashing out of a machine tool in the cutting process, and the overall use safety is improved.
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Description

Technical Field

[0001] This utility model relates to waterjet cutting, and more particularly to a CNC integrated plate and tube waterjet cutting machine. Background Technology

[0002] Waterjet cutting utilizes ultra-high pressure technology to pressurize ordinary water to a certain pressure and then spray it out through a nozzle to form a high-speed jet, which is used to cut materials.

[0003] With the continuous advancement of technology, automated CNC waterjet cutting machines have emerged. These machines mainly consist of a main beam, a crossbeam, a Z-axis, a jet cutting head, and a water tank. The crossbeam is mounted on the main beam and can move back and forth. The Z-axis is mounted on the crossbeam and can move left and right. The jet cutting head is mounted on the Z-axis and can move up and down. The water tank is installed inside the main beam, directly below the crossbeam. Currently, these CNC waterjet cutting machines are mainly used for cutting sheet metal parts. The sheet metal parts are placed on top of the water tank and do not move during the cutting process, exhibiting good stability.

[0004] For some special structural parts, such as pipe fittings, waterjet cutting machines are sometimes required for cutting. However, since the end faces of pipe fittings are circular, it is not convenient to fix them on the water tank, and they are prone to deflection during cutting. Furthermore, since the pipe fittings may need to be rotated at any time during the cutting process, the processing method of fixing the pipe fittings on the water tank to keep their position unchanged is not applicable. To solve this technical problem, the current main approach is to place a positioner on the outside of the waterjet cutting machine. By extending the length of the crossbeam on the waterjet cutting machine to the top of the external positioner, the assembly and cutting of pipe fittings can be achieved in conjunction with the positioner. However, this structure results in the extended crossbeam not being able to bear the force well, affecting the stability of the entire crossbeam and thus affecting the cutting accuracy of the waterjet cutting machine. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a CNC integrated plate and pipe waterjet cutting machine that can process both plate parts and pipe parts while ensuring the cutting accuracy and stability of the waterjet cutting machine tool.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A CNC integrated plate and tube waterjet cutting machine includes a waterjet cutting machine tool, which consists of a main beam, a main water tank disposed within the main beam, a crossbeam mounted on the main beam and capable of moving forward and backward along the longitudinal length of the main beam (Y direction), a Z-axis disposed on the crossbeam and capable of moving in the lateral length of the crossbeam (X direction), and a jet cutting head disposed on the Z-axis and capable of moving up and down in the Z direction (Z direction). A pipe cutting mechanism is disposed within the main beam at the rear end of the main water tank. The pipe cutting mechanism includes a secondary water tank with an open top. A drive device for clamping pipe parts is disposed on the outside of one end of the secondary water tank. The drive device is disposed side by side with the secondary water tank. An auxiliary support device for supporting pipe parts is disposed inside the secondary water tank.

[0008] Furthermore, the auxiliary support device has two sets, which are arranged side by side with the drive device. The set of auxiliary support devices closer to the drive device is fixedly installed in the auxiliary water tank, while the set of auxiliary support devices farther from the drive device is movably installed in the auxiliary water tank.

[0009] Furthermore, a partition is provided inside the auxiliary water tank, suspended within the tank. Two guide grooves, one above the other, are arranged parallel to each other along the left-right length of the partition. A sliding block is located at the top of the partition above the guide grooves. One set of auxiliary support devices, farther from the drive device, is fixedly mounted on the sliding block, while the other set is fixedly mounted on the partition. A guide rod and a lead screw are arranged along the left-right length of the auxiliary water tank, located below the bottom of the partition. The guide rod and lead screw are parallel to each other. One end of the lead screw passes through the auxiliary water tank and is connected to a servo motor located on the outer side of the tank end. A sliding sleeve is provided on the guide rod, and a lead screw nut is provided on the lead screw. A set of sliding arms is provided on both the sliding sleeve and the lead screw nut. Both sets of sliding arms pass through the two guide grooves and are fixedly connected to the bottom of the sliding block.

[0010] Furthermore, the partition plate is evenly distributed with vertically connected perforations.

[0011] Furthermore, a top horizontal support plate is provided on the inner wall of the auxiliary water tank, and the partition is placed on the support plate.

[0012] Furthermore, both the guide slide rod and the lead screw are installed inside the auxiliary water tank via end support seats.

[0013] Furthermore, the auxiliary water tank has a drain outlet with internal and external connections located on its side near the bottom.

[0014] Furthermore, the auxiliary support device consists of a support base and rollers mounted on the support base. There are two rollers, which are symmetrically arranged on the support base near the upper end.

[0015] Furthermore, the drive device consists of an electric spindle and a chuck mounted on the electric spindle, with one end of the tubular component clamped and fixed by the chuck.

[0016] Compared with the prior art, the advantages of this utility model are: in this CNC integrated plate and tube waterjet cutting machine, the tube cutting mechanism is located behind the main water tank. By simply increasing the length of the Y-beam in the main beam, the stability of the crossbeam is not affected, which greatly improves the stability of the equipment and thus improves the overall cutting accuracy. Since the tube cutting part is located inside the main beam, it can effectively prevent the sand and water ejected from the jet cutting head from splashing out of the machine tool during the cutting process, thus improving the overall safety of use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a CNC integrated plate and tube waterjet cutting machine according to this utility model;

[0019] Figure 2 This is a top view schematic diagram of a CNC integrated plate and tube waterjet cutting machine according to this utility model;

[0020] Figure 3 yes Figure 2 Structural cross-sectional view of AA;

[0021] Figure 4 This is a three-dimensional structural diagram of the pipe cutting mechanism in a CNC integrated plate and pipe waterjet cutting machine according to this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the tube cutting mechanism in this utility model.

[0023] In the diagram: 1. Waterjet cutting machine tool; 11. Main beam; 12. Crossbeam; 13. Z-axis; 14. Jet cutting head; 15. Main water tank; 2. Pipe cutting mechanism; 21. Auxiliary water tank; 211. Drain outlet; 212. Support plate; 213. End support seat; 22. Partition plate; 221. Guide groove; 222. Leakage hole; 23. Drive device; 231. Chuck; 232. Pipe fittings; 24. Auxiliary support device; 241. Support seat; 242. Roller; 25. Slide seat; 251. Slide arm; 252. Guide slide rod; 253. Sliding sleeve; 254. Lead screw nut; 255. Lead screw. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example

[0030] Please refer to the instruction manual attached. Figure 1-3 As shown, the instruction manual is attached. Figure 1-3 The illustration shows a specific embodiment of a CNC integrated plate and tube waterjet cutting machine of this utility model. The CNC integrated plate and tube waterjet cutting machine includes a waterjet cutting machine tool 1, which is mainly suitable for cutting and processing plate parts. The waterjet cutting machine tool 1 includes a main beam 11, which is formed by two parallel X-beams arranged front and rear and two parallel Y-beams arranged left and right, forming a rectangular structure. A main water tank 15 is provided inside the main beam 11, and the plate parts to be processed are placed on top of the main water tank 15. A crossbeam 12 is mounted on the main beam 11, which can move back and forth along its length in the Y direction. Specifically, the two ends of the crossbeam 12 are movably connected to the two left and right Y-beams, and it can move along the length of the Y-beams. The crossbeam 12 is equipped with a Z-axis 13 that can move in the X-direction along its left and right length. A jet cutting head 14 that can move up and down is mounted on the Z-axis 13. To enable waterjet cutting of the pipe fittings 232, a pipe-cutting mechanism 2 is installed inside the main beam 11 at the rear end of the main water tank 15. To facilitate the assembly of the pipe-cutting mechanism 2 within the main beam 11, the lengths of the two Y-beams are extended to exceed the length of the main water tank 15, creating an independent space within the main beam 11 at the rear end of the main water tank 15. A base plate fixedly connected to the inner side of the main beam 11 is installed in this space, and the pipe-cutting mechanism 2 is mounted on this base plate. (See attached instruction manual.) Figure 4As shown, the pipe cutting mechanism 2 includes a top-opening auxiliary water tank 21, which is fixedly installed on the base plate. Its main function is to collect the slurry and cutting debris flowing out during waterjet cutting of the pipe fitting 232, facilitating collection and treatment and ensuring environmental protection. A drive device 23 for clamping the pipe fitting 232 is installed on the outside of one end of the auxiliary water tank 21. The drive device 23 is fixedly installed on the base plate and arranged side-by-side with the auxiliary water tank 21. The drive device 23 has the same structure as the spindle mechanism of a CNC machine tool, mainly consisting of an electric spindle and a chuck 231 mounted on the electric spindle. The electric spindle is fixedly installed on the base plate via a spindle base and is covered with a protective cover to prevent slurry from splashing into the electric spindle during waterjet cutting, thus affecting the safety of the equipment. It should be noted that the chuck... The chuck 231 is located outside the protective cover and is used to clamp the pipe fitting 232. One end of the pipe fitting 232 is clamped and fixed by the chuck 231. The pipe fitting 232, clamped on the drive device 23, is horizontally suspended above the top of the auxiliary water tank 21. This facilitates the movement of the crossbeam 12, the Z-axis 13, and the jet cutting head 14 above the clamped pipe fitting 232 for waterjet cutting. During the cutting process, the electric spindle can be started to rotate the pipe fitting 232 as needed, eliminating the need to stop the machine and manually rotate the circumferential position of the pipe fitting 232, thus improving processing efficiency and meeting process requirements. To ensure the stability of the pipe fitting 232 clamped by the drive device 23, the auxiliary water tank 21 is equipped with an auxiliary support device 24 for supporting the pipe fitting 232. (See the appendix of the instruction manual.) Figure 5 As shown, the auxiliary support device 24 consists of a support base 241 and rollers 242 disposed on the support base 241. There are two rollers 242, which are symmetrically disposed on the support base 241 near the upper end. A V-shaped groove is formed between the two rollers 242. The pipe fitting 232 clamped on the chuck 231 is supported by the V-shaped groove between the tops of the two rollers 242 on the auxiliary support device 24. The rollers 242 do not interfere with the rotation of the pipe fitting 232. When the pipe fitting 232 rotates, the rollers 242 will also rotate.

[0031] To ensure the stability of the support for the pipe fitting 232, the auxiliary support device 24 has two sets. These two sets of auxiliary support devices 24 are arranged side-by-side with the driving device 23. One set of auxiliary support devices 24 closer to the driving device 23 is fixedly installed in the auxiliary water tank 21, while the other set of auxiliary support devices 24 further away from the driving device 23 is movably installed in the auxiliary water tank 21. This movable set of auxiliary support devices 24 can be adjusted left and right to achieve the desired spacing between the two sets of auxiliary support devices, adapting to support pipe fittings 232 of different lengths. A partition 22, which is a flat plate, is installed inside the auxiliary water tank 21 and is suspended within the tank. The partition 22 and the auxiliary water tank 232... The inner bottom surface of the partition 21 has gaps to facilitate the installation and removal of the partition 22 within the auxiliary water tank 21. A horizontal support plate 212 is installed on the inner wall of the auxiliary water tank 21, and the partition 22 is placed on the support plate 212. To facilitate the flow of sand and water falling into the auxiliary water tank 21 during waterjet cutting through the partition 22 into the space below its bottom, the partition 21 has evenly distributed vertically connected drain holes 222. These drain holes 222 are tapered holes for easy drainage. Simultaneously, to ensure timely discharge of sand and water from the auxiliary water tank 21, a drain outlet 211 with internal and external connections is provided on the side of the auxiliary water tank 21 near the bottom. The drain outlet 211 corresponds to the bottom of the auxiliary water tank 21, and a pipe can be connected to the drain outlet 211. For centralized treatment of sewage, the partition 22 has a vertically connected guide groove 221 along its lateral length. The guide groove 221 is elongated and has two sections arranged side-by-side. To facilitate the left-right movement of the auxiliary support devices 24 located away from the drive mechanism 23, a slide block 25 is provided at the top of the partition 22 above the guide groove 221. The slide block 25 is parallel to the partition 22 and has a gap with it. One set of auxiliary support devices 24, located away from the drive mechanism 23, is fixedly mounted on the slide block 25, while the other set, located closer to the drive mechanism 23, is fixedly mounted on the partition 22. These two sets can be connected by bolts. The auxiliary water tank... Inside the auxiliary water tank 21, below the bottom of the partition 22, there are guide rods 252 and lead screws 255 arranged along the left and right length of the auxiliary water tank 21. The guide rods 252 and lead screws 255 are parallel to each other. Both the guide rods 252 and lead screws 255 are installed inside the auxiliary water tank 21 through end support seats 213. That is, the two ends of the guide rods 252 are provided with end support seats 213 connected to their bearings. The part of the lead screw 255 inside the auxiliary water tank 21 is connected by two left and right symmetrical end support seats 213 bearings. The end support seats 213 are fixedly installed on the bottom surface of the auxiliary water tank 21 by bolts. In addition, the top height of the end support seats 213 is best to be the same as the top surface height of the support plate 212, which can also provide auxiliary support for the partition 22.One end of the lead screw 255 passes through the end of the auxiliary water tank 21 and is connected to a servo motor 26 located on the outside of the end of the auxiliary water tank 21. A sealed fit exists between the lead screw 255 and the part of the auxiliary water tank 21 through which it passes, preventing water leakage from the auxiliary water tank 21. This technique is conventional and requires no further explanation. The servo motor 26 drives the lead screw 255 to rotate. The guide slide rod 252 is equipped with a sliding sleeve 253 that slides with it, and the lead screw 255 is equipped with a lead screw nut 254 that threads with it. The lead screw 255 rotates... When in motion, the lead screw nut 254 can move relative to the lead screw 255. A set of sliding arms 251 is respectively provided on the sliding sleeve 253 and the lead screw nut 254. The sliding arms 251 have an "L" shape structure. The two sets of sliding arms 251 are respectively welded to the sliding sleeve 253 and the lead screw nut 254. The upper ends of the two sets of sliding arms 251 pass through the front and rear guide grooves 221 and are fixedly connected to the bottom of the slide block 25 by bolts. The sliding arms 251 simultaneously support and lift the slide block 25 and can drive the slide block 25 to move left and right.

[0032] Its specific working principle is as follows: When processing sheet metal parts, the sheet metal parts are placed on the top surface of the main water tank 15. The jet cutting head 14 performs water jet cutting on the sheet metal parts according to the set program, moving back and forth with the crossbeam 12 and moving left and right and up and down with the Z-axis 13. When cutting pipe parts, the distance between the two sets of auxiliary support devices 24 is adjusted according to the length of the pipe. During adjustment, the servo motor 26 drives the lead screw 255 to rotate. The counterclockwise or clockwise rotation of the lead screw 255 can drive the lead screw nut 254 outside it to move left or right. The lead screw nut 254 drives the sliding arm 251 connected to it to move synchronously. The sliding arm 251 drives the support seat 241 fixedly connected to its top to move synchronously. The other set of sliding arms 251, in addition to ensuring the balance of the sliding seat 25, can also drive the support seat 241 fixedly connected to it to move synchronously. The connected sliding sleeve 253 slides on the guide slide rod 252 without interference. The distance between the top auxiliary support device 24 and another set of auxiliary support devices 24 is adjusted by moving the sliding block 25. After the position is adjusted, one end of the pipe part 232 is clamped by the chuck 231. The main body of the pipe part 232 is supported by the two sets of auxiliary support devices 24 to ensure the balance of the pipe part 232 and the accuracy of waterjet cutting. During waterjet cutting, the crossbeam 12 drives the Z-axis and the jet cutting head 14 to move above the pipe part 232. According to the set program, the jet cutting head 14 performs waterjet cutting on the pipe part. According to the processing needs, the drive mechanism 23 can drive the two clamped pipe parts 232 to rotate slowly to achieve synchronous rotation and cutting, thereby improving the efficiency and flexibility of waterjet cutting.

[0033] In this CNC integrated plate and tube waterjet cutting machine, the pipe cutting mechanism 2 is located behind the main water tank 15. By simply increasing the length of the Y-beam in the main beam 11, the stability of the crossbeam 12 is not affected, greatly improving the stability of the equipment and thus improving the overall cutting accuracy. Since the pipe cutting part is located inside the main beam 11, it can effectively prevent the sand and water ejected by the jet cutting head 14 from splashing out of the machine tool during the cutting process, thus improving the overall safety of use.

[0034] It should be emphasized that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A CNC integrated plate and tube waterjet cutting machine, comprising a waterjet cutting machine tool (1), wherein the waterjet cutting machine tool (1) consists of a main beam (11), a main water tank (15) disposed within the main beam (11), a crossbeam (12) mounted on the main beam (11) and capable of moving forward and backward along the Y-axis in the longitudinal direction of the main beam (11), a Z-axis (13) mounted on the crossbeam (12) and capable of moving in the X-axis in the lateral direction of the crossbeam (12), and a jet cutting head (14) mounted on the Z-axis (13) and capable of moving up and down in the Z-axis direction, characterized in that: A pipe-cutting mechanism (2) is provided inside the main beam (11) at the rear end of the main water tank (15). The pipe-cutting mechanism (2) includes a secondary water tank (21) with an open top. A drive device (23) for clamping pipe parts (232) is provided outside one end of the secondary water tank (21). The drive device (23) is arranged side by side with the secondary water tank (21). An auxiliary support device (24) for supporting the pipe parts (232) is provided inside the secondary water tank (21).

2. The CNC integrated plate and tube waterjet cutting machine according to claim 1, characterized in that: The auxiliary support device (24) has two sets, and the two sets of auxiliary support devices (24) are arranged side by side with the drive device (23). The set of auxiliary support devices (24) closer to the drive device (23) is fixedly installed in the auxiliary water tank (21), and the set of auxiliary support devices (24) farther away from the drive device (23) is movably installed in the auxiliary water tank (21).

3. The CNC integrated plate and tube waterjet cutting machine according to claim 2, characterized in that: A partition (22) is provided inside the auxiliary water tank (21), and the partition (22) is suspended inside the auxiliary water tank (21). A guide groove (221) is provided on the partition (22) along its left-right length direction, and there are two guide grooves (221) arranged side-by-side. A sliding seat (25) is provided at the top of the partition (22) above the guide groove (221). A set of auxiliary support devices (24) away from the drive device (23) is fixedly installed on the sliding seat (25), and a set of auxiliary support devices (24) closer to the drive device (23) is fixedly installed on the partition (22). The portion of the auxiliary water tank (21) located below the bottom of the partition (22) along the auxiliary water tank (21)... 21) is provided with a guide slide rod (252) and a lead screw (255) in the left and right length directions. The guide slide rod (252) and the lead screw (255) are parallel to each other. One end of the lead screw (255) passes through the auxiliary water tank (21) and is connected to the servo motor (26) located on the outer side of the end of the auxiliary water tank (21). The guide slide rod (252) is provided with a sliding sleeve (253) that slides with it. The lead screw (255) is provided with a lead screw nut (254) that threads with it. The sliding sleeve (253) and the lead screw nut (254) are respectively provided with a set of sliding arms (251). The two sets of sliding arms (251) pass through the front and rear guide grooves (221) and are fixedly connected to the bottom of the slide block (25).

4. A CNC integrated plate and tube waterjet cutting machine according to claim 3, characterized in that: The partition (2) is evenly distributed with vertically connected leakage holes (222).

5. A CNC integrated plate and tube waterjet cutting machine according to claim 3, characterized in that: The inner wall of the auxiliary water tank (21) is provided with a top horizontal support plate (212), and the partition (22) is placed on the support plate (212).

6. A CNC integrated plate and tube waterjet cutting machine according to claim 3, characterized in that: The guide slide (252) and lead screw (255) are both installed in the auxiliary water tank (21) via end support (213).

7. A CNC integrated plate and tube waterjet cutting machine according to claim 3, characterized in that: The auxiliary water tank (21) has a drain outlet (211) that connects the inside and outside near the bottom on its side.

8. A CNC integrated plate and tube waterjet cutting machine according to claim 1, characterized in that: The auxiliary support device (24) consists of a support base (241) and rollers (242) arranged on the support base (241). There are two rollers (242), which are symmetrically arranged on the support base (241) near the upper end.

9. A CNC integrated plate and tube waterjet cutting machine according to claim 1, characterized in that: The drive device (23) consists of an electric spindle and a chuck (231) mounted on the electric spindle. One end of the pipe fitting (232) is clamped and fixed by the chuck (231).