Water nozzle plate structure for large-taper linear cutting machine tool

Abstract

The invention relates to the technical field of linear cutting, and discloses a water nozzle plate structure for a large-taper linear cutting machine tool, which comprises a bottom plate, a fixing block is arranged on the bottom plate, a mounting block is mounted on one side of the fixing block, water nozzle main plates are mounted on the top surface of the mounting block, the angle of each water nozzle main plate is designed to be an obtuse angle, and two groups of water nozzle main plates are symmetrically arranged up and down; a cutting cable is arranged between the two sets of water nozzle main plates, water nozzle inner plates are arranged in the water nozzle main plates, threading grooves and water outlets are formed in the water nozzle inner plates, the cutting cable is arranged in the threading grooves, water storage circular grooves and guide grooves are formed in the water nozzle inner plates, the water storage circular grooves are communicated with the guide grooves, the guide grooves point to the water outlets, and the width of the section of each guide groove is designed to be extremely narrow. According to the scheme, the water nozzle plate with the large taper is adopted, so that water pressure flowing through the water nozzle plate can uniformly cover a workpiece, and the problem that the workpiece is possibly deformed to be in a waist drum shape in the water spraying process of the water nozzle plate with the small taper is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire cutting, and specifically to a nozzle plate structure for a large taper wire cutting machine tool. Background Art

[0002] A wire cutting machine tool is an electro-discharge machining tool. It uses a continuously moving thin metal wire as an electrode and cuts the workpiece through the principle of pulsed spark discharge. The basic physical principle of the wire cutting machine tool is that free positive ions and electrons accumulate in the field, quickly forming an ionized conductive channel. Under the action of the electric field, the cathode and anode surfaces are respectively bombarded by electron flow and ion flow, forming an instantaneous high-temperature heat source in the electrode gap, melting and vaporizing local metal. The vaporized working fluid and workpiece material vapor expand rapidly instantaneously. Under the combined action of this thermal expansion and the stamping of the working fluid, the melted and vaporized workpiece material is ejected from the discharge channel, completing a spark discharge process. As pulses are continuously generated, this process is repeated, thereby cutting the workpiece into shape.

[0003] In the existing technical field of wire cutting machine tools, as a key component for water spraying cooling and chip removal, the design details of the nozzle plate play a crucial role in machining accuracy and workpiece quality. Traditionally, many wire cutting machine tools adopt a small taper nozzle plate design. Although this design can meet the basic water spraying requirements to a certain extent, in the actual operation process, it also quietly poses a hidden danger affecting the machining quality.

[0004] Specifically, when high-pressure water flow passes through a small taper conical nozzle plate, the water flow will show a high-speed and concentrated jet state due to strong extrusion. Although the original intention of such a design is to enhance the cooling effect and accelerate the discharge of chips, it cannot be ignored that it also brings a significant problem: the water pressure distribution on the workpiece surface becomes extremely uneven. Especially in the edge area of the workpiece, due to the convergence of the water flow, the water pressure borne by this area far exceeds that of the middle part. This uneven pressure distribution is extremely likely to cause the workpiece to deform during the machining process, and finally present a bad shape called "waist drum shape"; therefore, it does not meet the existing requirements, and for this reason, we propose a nozzle plate structure for a large taper wire cutting machine tool. Summary of the Invention

[0005] The present invention provides a nozzle plate structure for a large taper wire cutting machine tool, which has the beneficial effect that the water pressure flowing through the nozzle plate can evenly cover the workpiece by adopting a large taper nozzle plate, and solves the problem that the small taper nozzle plate mentioned in the above background art may cause the workpiece to deform into a waist drum shape during the water spraying process.

[0006] The present invention provides the following technical solution: a nozzle plate structure for a large taper wire cutting machine tool, including a bottom plate, a fixing block is arranged on the bottom plate, an installation block is installed on one side of the fixing block, a nozzle main board is installed on the top surface of the installation block, the angle of the nozzle main board is designed as an obtuse angle, two groups of the nozzle main boards are symmetrically arranged up and down, a cutting cable is arranged between the two groups of the nozzle main boards, the installation block is in the shape of a right trapezoid, and the cutting cable is made of copper wire.

[0007] A nozzle inner plate is arranged in the nozzle main board. A wire passing groove and a water outlet are formed inside the nozzle inner plate. The cutting cable is arranged in the wire passing groove. The wire passing groove and the water outlet divide the nozzle inner plate into two halves. A water storage circular groove and a guiding groove are formed in the nozzle inner plate. The water storage circular groove and the guiding groove are communicated. The guiding groove points to the water outlet. The cross-sectional width of the guiding groove is designed to be extremely narrow. Two groups of the water storage circular groove and the guiding groove are symmetrically arranged.

[0008] As an optional scheme of the nozzle plate structure for a large taper wire cutting machine tool according to the present invention, wherein: installation bolt holes are formed in the nozzle main board, and the installation bolt holes are arranged at four corners of the nozzle main board.

[0009] As an optional scheme of the nozzle plate structure for a large taper wire cutting machine tool according to the present invention, wherein: an installation groove is formed in the nozzle main board, the nozzle inner plate is installed in the installation groove, and the inclined surface of the nozzle inner plate is flush with the inclined surface of the nozzle main board.

[0010] As an optional scheme of the nozzle plate structure for a large taper wire cutting machine tool according to the present invention, wherein: a water inlet hole and a water storage square groove are formed in the nozzle main board. The water inlet hole is communicated with the water storage square groove. The water storage square groove is communicated with the water storage circular groove. The water inlet hole is designed as a conical shape.

[0011] As an optional scheme of the nozzle plate structure for a large taper wire cutting machine tool according to the present invention, wherein: a water outlet groove is formed at the bottom of the nozzle main board, and the water outlet groove is communicated with the installation groove.

[0012] As an optional scheme of the nozzle plate structure for a large taper wire cutting machine tool according to the present invention, wherein: a support beam is fixedly connected to the upper surface of the bottom plate, an installation beam and a fixing beam are fixedly connected to the upper surface of the support beam, and a clamping device is installed on one side of the installation beam.

[0013] As an alternative solution for the nozzle plate structure of the large taper wire cutting machine described in the present invention, the following is provided: A pneumatic slide rail beam is fixedly connected to the upper surface of the bottom plate. An electric push rod is installed on the upper surface of the pneumatic slide rail beam. The bottom end of the electric push rod is installed with a synchronous connecting rod, and the other end of the synchronous connecting rod is fixedly connected to the upper surface of the fixed block. A pneumatic device is installed on the side wall of the electric push rod, and the pneumatic device is installed on the upper surface of the bottom plate.

[0014] As an alternative solution for the nozzle plate structure of the large taper wire cutting machine described in the present invention, the following is provided: The output end of the electric push rod is installed with the mounting block, and the bottom surface of the mounting block is installed with the main nozzle plate.

[0015] As an alternative solution for the nozzle plate structure of the large taper wire cutting machine described in the present invention, the following is provided: The cutting wire is controlled by a wire control device. The wire control device is arranged on one side of the bottom plate. A first transmission shaft is installed on the wire control device, and a second transmission shaft is installed on the upper surface of the electric push rod. The cutting wire is wound around the first transmission shaft and the second transmission shaft for connection.

[0016] As an alternative solution for the nozzle plate structure of the large taper wire cutting machine described in the present invention, the following is provided: The inner nozzle plate is adhesively bonded in the installation groove by hot melt adhesive.

[0017] The present invention has the following beneficial effects: 1. For the nozzle plate structure of the large taper wire cutting machine, the main nozzle plate with an obtuse angle design indicates that, compared with the existing nozzle plate, the nozzle plate in this solution is a large taper nozzle plate. This large taper design can increase the inclination angle, enabling the water to form a more uniform and stable fluid pressure distribution when passing through the main nozzle plate. This uniform pressure distribution helps to reduce the lateral force exerted on the workpiece during processing, thereby reducing the risk of workpiece deformation. At the same time, the large taper design can not only shorten the distance between the water spray port and the workpiece but also optimize the fluid flow path, reducing the resistance of the fluid when passing through the main nozzle plate and improving the cutting efficiency.

[0018] 2. The large-taper wire cutting machine uses a nozzle plate structure, and the extremely narrow design of the guide groove cross-section width realizes fine control of the water flow. When the cooling water flows into the water storage groove, this design prevents the water flow from being easily discharged quickly through the guide groove, but accumulates smoothly and fully inside the water storage groove. As the water storage groove is gradually filled with cooling water, the system continues to inject new water. At this time, the extremely narrow design of the guide groove forces the water flow to gush out at a very high pressure in a confined space. This design greatly increases the output pressure of the cooling water, quickly takes away the heat generated by cutting, prevents deformation or thermal damage of the workpiece, and can effectively wash away the debris generated by cutting, keeping the cutting surface clean and accurate, thereby significantly improving the processing quality and efficiency of wire cutting. At the same time, the extremely narrow design of the guide groove effectively blocks the possibility of cooling water flowing back to the water storage groove through the guide groove.

[0019] 3. The large-taper wire cutting machine uses a nozzle plate structure. The guide groove is designed to be extremely narrow at its end, and the cross-sectional width of the water outlet is designed to be much larger than the width of the guide groove. This width difference allows the high-pressure water flow to be forcefully squeezed out after passing through the extremely narrow channel of the guide groove. When it instantly enters the more spacious area of the water outlet, the water flow is no longer restricted by the narrow space, and its spray diameter naturally increases, forming a wider and evenly distributed water curtain. This design effectively avoids the excessively concentrated local impact of cooling water on the cutting cable. In traditional cooling methods, high-intensity water flow directly impacts the cutting cable, which often causes unnecessary shaking of the cutting cable, thereby affecting the cutting accuracy and stability. The wide water curtain cools the cutting cable in a softer and more even manner, which not only ensures the cooling effect, but also reduces the shaking of the cable, making the cutting process more stable and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0021] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention.

[0022] Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the faucet mainboard of the present invention.

[0024] Figure 5 It is a schematic diagram of the top planar structure of the faucet mainboard of the present invention.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the cross-section structure of section 1-1.

[0026] Figure 7 For the present invention Figure 6 Schematic enlarged structure diagram at position B in

[0027] Figure 8 Schematic disassembled structure diagram of the water nozzle main board of the present invention Figure 1 .

[0028] Figure 9 Schematic disassembled structure diagram of the water nozzle main board of the present invention Figure 2 .

[0029] In the figure: 1, bottom plate; 2, support beam; 3, installation beam; 4, clamping device; 5, fixed beam; 6, pneumatic slide rail beam; 7, electric push rod; 8, pneumatic device; 9, installation block; 10, cable control device; 11, first transmission shaft; 12, second transmission shaft; 13, water nozzle main board; 14, installation bolt hole; 15, installation groove; 16, water nozzle inner plate; 17, water inlet hole; 18, water storage rectangular groove; 19, water storage circular groove; 20, guide groove; 21, wire threading groove; 22, water outlet groove; 23, fixed block; 24, cutting cable; 25, water outlet; 26, synchronous connecting rod. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that the water nozzle plate with a small taper may cause the workpiece to deform into a waist drum shape during the water spraying process. Please refer to Figures 1 to 9 , A water nozzle plate structure for a large taper wire cutting machine tool, including a bottom plate 1, a fixed block 23 is arranged on the bottom plate 1, an installation block 9 is installed on one side of the fixed block 23, a water nozzle main board 13 is installed on the top surface of the installation block 9, the angle of the water nozzle main board 13 is designed to be an obtuse angle, two groups of water nozzle main boards 13 are symmetrically arranged up and down, and a cutting cable 24 is arranged between the two groups of water nozzle main boards 13.

[0032] The water nozzle main board 13 with an obtuse angle design shows that compared with the existing water nozzle boards, the water nozzle board of this solution is a water nozzle board with a large taper. This large taper design can form a more uniform and stable fluid pressure distribution when water passes through the water nozzle main board 13 by increasing the inclination angle. This uniform pressure distribution helps to reduce the lateral force on the workpiece during processing, thereby reducing the risk of workpiece deformation. At the same time, the large taper design can not only shorten the distance between the water spray port and the workpiece, but also optimize the fluid flow path, reduce the resistance of the fluid when passing through the water nozzle main board 13, and improve the cutting efficiency. The water nozzle main board 13 with a large taper can more effectively spray the cooling water to the contact area of the workpiece. At the same time, this design not only improves the cooling effect, helps to reduce the temperature gradient during processing, thereby reducing workpiece deformation caused by thermal stress, but also enhances the lubrication effect and reduces the friction coefficient between the cutting wire 24 and the workpiece. The reduction of the friction coefficient helps to reduce the frictional resistance on the workpiece during processing and further reduces the possibility of workpiece deformation.

[0033] During the actual processing, the water nozzle main board 13 with a large taper can also optimize the support and constraint of the workpiece by adjusting the spraying angle and flow rate. By setting reasonable spraying angles and flow rates, a stable fluid film can be formed on the surface of the workpiece by the cooling water. This fluid film can play a certain supporting role for the workpiece, helping to reduce the deformation of the workpiece during processing. At the same time, the formation of the fluid film can also reduce the direct contact area between the workpiece and the machine tool, thereby reducing the workpiece deformation caused by contact stress.

[0034] Mounting bolt holes 14 are provided in the water nozzle main board 13, and the mounting bolt holes 14 are arranged at the four corners of the water nozzle main board 13. By accurately opening the mounting bolt holes 14 in the four corner areas, the layout of these hole positions not only conforms to the mechanical design principle of mechanical balance, but also significantly enhances the connection stability and reliability between the water nozzle main board 13 and the mounting block 9. Specifically, the opening of the mounting bolt holes 14 allows the use of high-strength bolts as connecting parts. Through the fastening action of the bolts, the water nozzle main board 13 is firmly locked on the mounting block 9. This connection method not only ensures the position accuracy and stability of the water nozzle main board 13 after installation, but also effectively prevents loosening or deformation caused by vibration or external forces.

[0035] A mounting groove 15 is provided in the water nozzle main board 13, and a water nozzle inner board 16 is installed in the mounting groove 15. The inclined surface of the water nozzle inner board 16 is flush with the inclined surface of the water nozzle main board 13.

[0036] The water nozzle inner board 16 is adhesively bonded in the mounting groove 15 with hot melt adhesive.

[0037] The design of the installation groove 15 inside the faucet main board 13 provides a stable foundation for the installation of the faucet inner board 16. The installation groove 15 not only ensures the accurate positioning of the faucet inner board 16 in three-dimensional space, but also achieves seamless docking with the faucet inner board 16 through the precise matching of its shape and size. The flush design of the inclined surface of the faucet inner board 16 and the inclined surface of the faucet main board 13 enhances the overall aesthetics, ensures the smoothness and uniformity of the fluid when flowing through this area, effectively reduces the fluid resistance, and improves the water outlet efficiency of the faucet.

[0038] The hot melt adhesive bonding used between the two not only has the characteristics of high strength and high durability, but also can ensure the firm fixation of the faucet inner board 16 in the installation groove 15, avoiding problems such as loosening or falling off caused by vibration or long-term use. At the same time, the excellent sealing performance of the hot melt adhesive can effectively prevent fluid leakage, further enhancing the overall performance and reliability of the faucet.

[0039] The faucet main board 13 is provided with a water inlet hole 17 and a water storage square groove 18. The water inlet hole 17 is communicated with the water storage square groove 18, and the water storage square groove 18 is communicated with the water storage circular groove 19. As a connecting component, the main function of the water inlet hole 17 is to achieve a stable and efficient connection with the water inlet pipe to ensure the continuous supply of cooling water. The water inlet hole 17 adopts a conical design, and this structural feature significantly enhances its connection stability with the water pipe. The conical design not only facilitates the insertion and positioning of the water pipe through the gradually shrinking aperture, but also can form a more tight sealing effect during the connection process, effectively preventing the water pipe from falling off due to vibration or pressure fluctuation, thus ensuring the continuity and stability of the equipment during the processing process.

[0040] In addition, the ingenious design of the water storage square groove 18 further improves the distribution efficiency of the cooling water. Through reasonable layout, the square groove ensures that the cooling water can flow into the two water storage circular grooves 19 simultaneously and evenly. This design not only optimizes the flow path of the cooling water, but also ensures that the two water storage circular grooves 19 can be filled with water simultaneously and quickly, thereby achieving the simultaneous water outlet of the two guiding grooves 20. This synchronous water outlet design not only improves the cooling efficiency, but also ensures the uniform cooling of each part of the workpiece during the processing process, effectively extending the service life of the equipment and improving the processing accuracy and product quality.

[0041] The bottom of the faucet main board 13 is provided with a water outlet groove 22, and the water outlet groove 22 is communicated with the installation groove 15.

[0042] The water outlet groove 22 opened at the bottom of the water nozzle main board 13, as another important part of the cooling system, undertakes the task of discharging excess or unnecessary cooling water. This design not only helps to maintain the stable operation of the cooling system but also effectively prevents equipment failures or performance degradation caused by water accumulation. Through reasonable layout and size design, it can ensure that the cooling water will not cause waste or pollution during the discharge process, thus improving the efficiency and sustainability of the entire cooling system.

[0043] A support beam 2 is fixedly connected to the upper surface of the bottom plate 1. An installation beam 3 and a fixed beam 5 are fixedly connected to the upper surface of the support beam 2. A clamping device 4 is installed on one side of the installation beam 3.

[0044] The bottom plate 1, as the foundation of the entire system, ensures the stability and firmness of the entire structure by fixedly connecting components such as the support beam 2, the installation beam 3, the fixed beam 5, and the pneumatic slide rail beam 6. This design helps to resist various external forces and vibrations that may occur during use and guarantees the normal operation of the equipment. The clamping device 4 is used to clamp the workpiece.

[0045] A pneumatic slide rail beam 6 is fixedly connected to the upper surface of the bottom plate 1. An electric push rod 7 is installed on the upper surface of the pneumatic slide rail beam 6. The bottom end of the electric push rod 7 is installed with a synchronous connecting rod 26. The other end of the synchronous connecting rod 26 is fixedly connected to the upper surface of the fixed block 23. A pneumatic device 8 is installed on the side wall of the electric push rod 7. The pneumatic device 8 is installed on the upper surface of the bottom plate 1.

[0046] An installation block 9 is installed at the output end of the electric push rod 7. The water nozzle main board 13 is installed on the bottom surface of the installation block 9. The introduction of the electric push rod 7 and the pneumatic device 8 makes the system have high flexibility and controllability. The electric push rod 7 can adjust the horizontal position of the water nozzle main board 13 by controlling its expansion and contraction, and the participation of the pneumatic device 8 can adjust the front and rear positions of the electric push rod 7 and the water nozzle main board 13. This design helps to achieve precise cutting operations.

[0047] The cutting cable 24 is controlled by a cable control device 10. The cable control device 10 is arranged on one side of the bottom plate 1. A first transmission shaft 11 is installed on the cable control device 10. A second transmission shaft 12 is installed on the upper surface of the electric push rod 7. The cutting cable 24 is wound around the first transmission shaft 11 and the second transmission shaft 12 for connection.

[0048] Through the combination of the cable control device 10, the No. 1 transmission shaft 11 and the No. 2 transmission shaft 12, the cutting cable 24 is effectively managed and controlled. This design not only avoids the confusion and entanglement of the cables, but also ensures that the cutting cable 24 can quickly and accurately reach the designated position when needed, thereby improving work efficiency. At the same time, through the control of the cable control device 10, the faucet main board 13 equipped with the cutting cable 24 is always kept in a taut state during the movement process, thereby ensuring the stable operation of the cutting process.

[0049] Example 2: This example is intended to solve the problem that the existing water flow has a large impact on the workpiece, affecting the cutting. This example is an explanation based on Example 1. For details, please refer to Figures 1 to 9 A faucet inner plate 16 is arranged in the faucet main board 13, a threading groove 21 and a water outlet 25 are opened inside the faucet inner plate 16, a cutting cable 24 is arranged in the threading groove 21, the threading groove 21 and the water outlet 25 divide the faucet inner plate 16 into two halves, a water storage circular groove 19 and a guide groove 20 are opened in the faucet inner plate 16, the water storage circular groove 19 and the guide groove 20 are connected, and the guide groove 20 points to the water outlet 25.

[0050] The extremely narrow design of the cross-sectional width of the guide groove 20 enables fine control of the water flow. When cooling water flows into the water storage circular groove 19, this design prevents the water from being easily discharged quickly through the guide groove 20, but accumulates smoothly and fully inside the water storage circular groove 19. As the water storage circular groove 19 is gradually filled with cooling water, the system continues to inject new water. At this time, the extremely narrow design of the guide groove 20 plays a key role, forcing the water to gush out at extremely high pressure in a confined space.

[0051] The purpose of this design is not only to ensure the verticality of the water flow, but also to greatly increase the output pressure of the cooling water, which brings significant benefits to the wire cutting process. During the wire cutting process, high-precision cutting operations require that the cooling water can act on the cutting area with sufficient pressure and stability to quickly take away the heat generated by the cutting and prevent the workpiece from deformation or thermal damage. The high-pressure water flow imparted by the extremely narrow guide groove 20 design just meets this requirement. It can not only cool the cutting area more efficiently and reduce the heat-affected zone, but also effectively flush away the debris generated by the cutting and keep the cutting surface clean and precise, thereby significantly improving the processing quality and efficiency of the wire cutting. At the same time, the extremely narrow design of the guide groove 20 effectively blocks the possibility of cooling water flowing back to the water storage circular groove 19 through the guide groove 20.

[0052] Due to the extremely narrow design of the guide groove 20 at its end and the cross-sectional width of the water outlet 25 being designed to be much larger than the width of the guide groove 20, this width difference causes the high-pressure water flow to be forcefully squeezed out after passing through the extremely narrow channel of the guide groove 20 and instantly enter the more spacious area of the water outlet 25. The water flow is no longer restricted by the narrow space, and its spray diameter naturally increases, forming a wider and evenly distributed water curtain.

[0053] This design greatly expands the direct contact area between the output cooling water and the workpiece. Compared with a narrow water stream, the wide water curtain can cover the cutting area more comprehensively, ensuring that every corner can be adequately cooled, thereby improving cooling efficiency and reducing the risk of heat accumulation.

[0054] Secondly, this design effectively avoids the excessively concentrated local impact of the cooling water on the cutting cable 24. In the traditional cooling method, the high-intensity water flow directly impacts the cutting cable 24, which often causes the cutting cable 24 to produce unnecessary shaking, thereby affecting the cutting accuracy and stability. The wide water curtain cools the cutting cable 24 in a softer and more uniform manner, which not only ensures the cooling effect, but also reduces the shaking of the cable, making the cutting process more stable and controllable.

[0055] In addition, the wide water curtain helps to quickly remove the debris and heat generated during the cutting process, keeping the cutting surface clean, further improving the cutting quality and efficiency. In summary, this design not only optimizes the distribution and effect of cooling water, but also enhances the stability and reliability of the cutting process, bringing significant performance improvements to wire cutting operations.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A nozzle plate structure for a large taper wire cutting machine tool, comprising a bottom plate (1), characterized in that: A fixed block (23) is provided on the bottom plate (1). An installation block (9) is installed on one side of the fixed block (23). The top surface of the installation block (9) is installed with a water nozzle main board (13). The angle of the water nozzle main board (13) is designed to be an obtuse angle. Two groups of the water nozzle main boards (13) are symmetrically arranged up and down. A cutting cable (24) is arranged between the two groups of the water nozzle main boards (13). A water nozzle inner board (16) is arranged inside the water nozzle main board (13). A wire passing groove (21) and a water outlet (25) are formed inside the water nozzle inner board (16). The cutting cable (24) is arranged in the wire passing groove (21). The wire passing groove (21) and the water outlet (25) divide the water nozzle inner board (16) into two halves. A water storage circular groove (19) and a guiding groove (20) are formed inside the water nozzle inner board (16). The water storage circular groove (19) and the guiding groove (20) are communicated. The guiding groove (20) points to the water outlet (25).

2. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 1, characterized in that: Mounting bolt holes (14) are formed inside the water nozzle main board (13). The mounting bolt holes (14) are arranged at the four corners of the water nozzle main board (13).

3. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 2, characterized in that: An installation groove (15) is formed inside the water nozzle main board (13). The water nozzle inner board (16) is installed in the installation groove (15). The inclined surface of the water nozzle inner board (16) is flush with the inclined surface of the water nozzle main board (13).

4. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 1, characterized in that: An inlet hole (17) and a water storage square groove (18) are formed inside the water nozzle main board (13). The inlet hole (17) is communicated with the water storage square groove (18). The water storage square groove (18) is communicated with the water storage circular groove (19).

5. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 3, characterized in that: A water outlet groove (22) is formed at the bottom of the water nozzle main board (13). The water outlet groove (22) is communicated with the installation groove (15).

6. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 1, characterized in that: A support beam (2) is fixedly connected to the upper surface of the bottom plate (1). An installation beam (3) and a fixed beam (5) are fixedly connected to the upper surface of the support beam (2). A clamping device (4) is installed on one side of the installation beam (3).

7. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 1, characterized in that: A pneumatic slide rail beam (6) is fixedly connected to the upper surface of the bottom plate (1). An electric push rod (7) is installed on the upper surface of the pneumatic slide rail beam (6). The bottom end of the electric push rod (7) is installed with a synchronous connecting rod (26). The other end of the synchronous connecting rod (26) is fixedly connected to the upper surface of the fixed block (23). A pneumatic device (8) is installed on the side wall of the electric push rod (7). The pneumatic device (8) is installed on the upper surface of the bottom plate (1).

8. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 7, characterized in that: The output end of the electric push rod (7) is installed with the installation block (9). The bottom surface of the installation block (9) is installed with the water nozzle main board (13).

9. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 7, characterized in that: The cutting cable (24) is controlled by a cable control device (10). The cable control device (10) is arranged on one side of the bottom plate (1). A first transmission shaft (11) is installed on the cable control device (10). A second transmission shaft (12) is installed on the upper surface of the electric push rod (7). The cutting cable (24) is connected around the first transmission shaft (11) and the second transmission shaft (12).

10. The water nozzle plate structure for a large taper wire cutting machine tool according to claim 3, characterized in that: The inner plate (16) of the faucet is adhesively bonded in the installation groove (15) by hot melt adhesive.

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