Small wire cutting device with gas shield cutting function
By introducing nitrogen protection and a multi-directional angle adjustment structure into the small wire EDM device, the problems of workpiece oxidation and the single fixing method are solved, achieving high-quality and safe cutting results and adapting to the cutting needs of complex workpieces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU HUAWEI ENG MASCH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-08-04
AI Technical Summary
In existing small wire EDM equipment, workpieces are prone to oxidation, the heat-affected zone is large, the cutting quality is affected, and the fixing method is simple, making it difficult to adapt to workpieces of different specifications and shapes. The clamping and adjustment are cumbersome, and the angle adjustment range is limited.
This small wire EDM device with gas protection cutting function uses nitrogen protection to prevent workpiece oxidation, increases the heat removal by high-pressure gas nozzles, and achieves multi-directional angle adjustment and flexible fixing through steering components and lead screw structure. The conductive fixture design adapts to different workpiece shapes, and the conductive copper sheet and pulse power supply form a stable conductive path.
It effectively prevents workpiece oxidation, reduces the heat-affected zone, improves cutting quality and safety, meets the cutting needs of complex workpieces, and enhances the processing flexibility and safety of the equipment.
Smart Images
Figure CN224587138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of small wire cutting technology, specifically a small wire cutting device with gas protection cutting function. Background Technology
[0002] Small wire EDM usually refers to small-scale electrical discharge wire cutting technology and related equipment. It uses high-frequency pulse voltage generated by a pulse power supply to produce pulsed spark discharge between the electrode wire (usually molybdenum wire, tungsten wire, etc.) and the workpiece. It is widely used in industries such as electronics, machinery, mold making, and aerospace.
[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: 1. Most existing wire cutting equipment relies solely on working fluid, which makes the workpiece prone to oxidation, resulting in a large heat-affected zone and affecting the cutting quality; 2. The fixing method is singular, making it difficult to adapt to workpieces of different specifications and shapes. The clamping and adjustment process is cumbersome and inefficient. The angle adjustment range during the cutting process is limited, which cannot meet the cutting needs of complex workpieces. Utility Model Content
[0004] The purpose of this utility model is to provide a small wire EDM device with gas-protected cutting function to solve the problems mentioned in the background art, such as easy oxidation of the workpiece, large heat-affected zone, and limited angle adjustment range during cutting, which rely solely on the working fluid. To achieve the above objective, this utility model provides the following technical solution: a small wire EDM device with gas-protected cutting function, including a welding table, a first positioning seat fixedly connected to one end of the top of the welding table, and a second positioning seat slidably connected to the other end of the top of the welding table. The tops of both the first and second positioning seats are rotatably connected to a workpiece table via a steering assembly. An L-shaped bracket is welded to the top of the welding table, located between the first and second positioning seats. A first lead screw is rotatably connected to the top wall of the L-shaped bracket, and a first movable seat is threadedly connected to the outer wall of the first lead screw. A second lead screw is rotatably connected to the inner wall of the first movable seat, and a cutting seat is threadedly connected to the outer wall of the second lead screw.
[0005] More preferably, one end of the steering assembly is rotatably connected to a worm gear and a worm wheel that mesh with each other, and the other end of the steering assembly is rotatably connected to a gear A and a gear B that mesh with each other. One end of the shaft at the center of the worm wheel rotates on the inner wall of one side of the steering assembly, and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table. One end of the shaft at the center of the gear A rotates on the inner wall of the other side of the steering assembly, and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table.
[0006] In a further preferred embodiment, a reverse lead screw is rotatably connected inside the workpiece stage, and a conductive clamp is slidably connected to the surface of the workpiece stage through a groove therein. The bottom of the conductive clamp is sleeved on the outer wall of the reverse lead screw, forming a helical transmission structure. At the same time, a conductive copper sheet is fixedly connected inside the workpiece stage, and the conductive copper sheet is electrically connected to the conductive clamp through a wire. The outer wall of the conductive clamp is covered with an insulating layer.
[0007] More preferably, the cutting seat is integrally connected to an upper tungsten wire disc and a lower tungsten wire disc, and a winch is rotatably connected to the top of the upper tungsten wire disc. A screw is threadedly connected to the cutting seat at the position corresponding to the upper tungsten wire disc, and the shaft of the screw passes through the cutting seat and is rotatably connected to a limit wheel. A high-pressure air nozzle is rotatably connected to one side of the outer wall of the upper tungsten wire disc through a universal joint bracket. The upper tungsten wire disc and the lower tungsten wire disc are fixedly connected by tungsten wire, and a conductive copper sheet is fixedly connected inside the lower tungsten wire disc.
[0008] More preferably, above the slide rod of the welding table used for sliding connection of the second positioning seat, there are several threaded through holes at equal intervals, and the second positioning seat is threadedly connected to these through holes by quick-release bolts, and the lower tungsten wire disc is slidably connected to the surface of the welding table by a universal wheel rotatably connected to its bottom.
[0009] More preferably, an air tank and a pulse power supply are fixedly connected to the surface of the L-shaped bracket, and the air tank is connected to the high-pressure air nozzle on the outer wall of the upper tungsten wire disc through a pipe. One end of the pulse power supply is connected to the conductive copper sheet inside the lower tungsten wire disc through a wire, and the other end of the pulse power supply is connected to the conductive copper sheet inside the workpiece stage through a wire.
[0010] In a further preferred embodiment, the first lead screw is located above and perpendicular to the second lead screw, and the cutting seat slides on the surface of the welding table along a cross-shaped trajectory through the helical transmission structure of the first moving seat and the first lead screw, as well as the helical transmission structure of the cutting seat itself and the second lead screw.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] In this invention, the device can be configured to use only the first positioning seat for single-sided fixing, or to use the first and second positioning seats together for fixing, depending on the size of the workpiece. The second positioning seat is connected to the threaded through hole of the welding table via a quick-release bolt, which allows for rapid position adjustment and shortens clamping time. The conductive clamp has a special shape; the lower vertical surface can fix regularly shaped workpieces, while the higher circular surface can fix circular workpieces. The conductive clamp can also adjust the spacing with the help of a reverse screw to accommodate workpieces of different sizes. The steering assembly, through the cooperation of a worm gear, a worm wheel, and gears A and B, can adjust the workpiece table angle in multiple directions to meet the cutting needs of workpieces with complex contours or inclined surfaces.
[0013] In this invention, an air tank and a high-pressure air nozzle are added to use nitrogen protection to prevent workpiece oxidation, remove heat to reduce the heat-affected zone, and improve the working environment. The first and second lead screws are vertically distributed, allowing the cutting seat to slide along a cross-shaped trajectory to meet various cutting needs. The conductive copper sheet in the workpiece table and the lower tungsten wire disc, together with the two ends of the pulse power supply between the conductive fixture and the L-shaped device, form a stable conductive path to ensure smooth cutting. At the same time, the outer wall of the conductive fixture is covered with an insulating layer to prevent operators from being electrocuted. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the left-side structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the right-side structure of this utility model;
[0016] Figure 3 This is a partial structural diagram of the welding station of this utility model;
[0017] Figure 4 This is a partial structural diagram of the steering component of this utility model;
[0018] Figure 5 This is a partial structural diagram of the workpiece stage of this utility model;
[0019] Figure 6 This is a schematic diagram of the L-shaped bracket and the first movable seat of this utility model;
[0020] Figure 7 This is a partial structural diagram of the cutting seat of this utility model.
[0021] In the diagram: 1. Welding table; 2. First positioning seat; 3. Second positioning seat; 4. Steering assembly; 401. Worm gear; 402. Worm wheel; 403. Gear A; 404. Gear B; 5. Workpiece table; 501. Reverse lead screw; 502. Conductive clamp; 6. L-shaped bracket; 7. First lead screw; 8. First moving seat; 9. Second lead screw; 10. Cutting seat; 1001. Upper tungsten wire spool; 1002. Lower tungsten wire spool; 1003. Winch; 1004. Screw. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 7This utility model provides a technical solution: a small wire cutting device with gas-protected cutting function, comprising: a welding table 1, a first positioning seat 2 fixedly connected to one end of the top of the welding table 1, a second positioning seat 3 slidably connected to the other end of the top of the welding table 1, a workpiece table 5 rotatably connected to the top of both the first positioning seat 2 and the second positioning seat 3 via a steering assembly 4, an L-shaped bracket 6 welded to the top of the welding table 1, the L-shaped bracket 6 being located between the first positioning seat 2 and the second positioning seat 3, a first lead screw 7 rotatably connected to the top wall of the L-shaped bracket 6, a first moving seat 8 threadedly connected to the outer wall of the first lead screw 7, a second lead screw 9 rotatably connected to the inner wall of the first moving seat 8, and a cutting seat 10 threadedly connected to the outer wall of the second lead screw 9.
[0024] In this embodiment, as Figure 4 As shown, one end of the steering assembly 4 is rotatably connected to a worm gear 401 and a worm wheel 402 that mesh with each other, and the other end of the steering assembly 4 is rotatably connected to a gear A 403 and a gear B 404 that mesh with each other. One end of the shaft at the center of the worm wheel 402 rotates on the inner wall of one side of the steering assembly 4, and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table 5. Similarly, one end of the shaft at the center of the gear A 403 rotates on the inner wall of the other side of the steering assembly 4, and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table 5. The mutual cooperation of the worm gear 401 and worm wheel 402 at one end of the steering assembly 4 and the gear A 403 and gear B 404 at the other end allows the workpiece table 5 to be angled in multiple directions to meet the needs of different cutting angles. For example, when cutting workpieces with complex contours or inclined surfaces, the angle of the workpiece table 5 can be precisely adjusted to match the cutting path with the design requirements of the workpiece, thereby improving the processing flexibility and adaptability of the equipment.
[0025] In this embodiment, as Figure 5As shown, a reverse lead screw 501 is rotatably connected inside the workpiece stage 5. A conductive clamp 502 is slidably connected to the surface of the workpiece stage 5 through a groove. The bottom of the conductive clamp 502 is sleeved on the outer wall of the reverse lead screw 501, forming a helical transmission structure. Simultaneously, a conductive copper sheet is fixedly connected inside the workpiece stage 5. The conductive copper sheet is electrically connected to the conductive clamp 502 via a wire. The outer wall of the conductive clamp 502 is covered with an insulating layer. When the reverse lead screw 501 is rotated, the positions of the two conductive clamps 502 can be adjusted, quickly achieving workpiece clamping. The conductive copper sheet fixedly connected to the workpiece stage 5 is electrically connected to the conductive clamp 502 via a wire, constructing a... A stable conductive path is established, allowing the pulse power supply current to be conducted through conductive copper sheets and wires to the conductive fixture 502 during the cutting process, and then to the workpiece. This ensures the smooth operation of the electrical discharge cutting process and guarantees cutting quality. Furthermore, the outer wall of the conductive fixture 502 is covered with an insulating layer, effectively preventing operators from accidentally coming into contact with the live conductive fixture 502 and suffering electric shock accidents. Especially during equipment operation, the insulating layer provides reliable safety protection for operators, improving the safety of equipment use. In addition, the special shape of the conductive fixture 502 allows it to clamp different types of workpieces, improving the versatility of the equipment.
[0026] In this embodiment, as Figure 7 As shown, the cutting base 10 is integrally formed by an upper tungsten wire disc 1001 and a lower tungsten wire disc 1002. A winch 1003 is rotatably connected to the top of the upper tungsten wire disc 1001. A screw 1004 is threadedly connected to the cutting base 10 at the position corresponding to the upper tungsten wire disc 1001. The shaft of the screw 1004 passes through the cutting base 10 and is rotatably connected to a limit wheel. A high-pressure air nozzle is rotatably connected to one side of the outer wall of the upper tungsten wire disc 1001 via a universal joint bracket. The upper tungsten wire disc 1001 and the lower tungsten wire disc 1002 are fixedly connected by tungsten wire, and the lower tungsten wire disc 1002 is internally fixedly connected to... It has a conductive copper sheet; the winch 1003 rotatably connected to the top of the upper tungsten wire spool 1001 can easily wind and release the tungsten wire. The height of the limit wheel can be adjusted by the screw 1004 to press the end of the wire, control the length and tension of the tungsten wire, and ensure that the tungsten wire maintains a suitable state during the cutting process. One side of the outer wall of the upper tungsten wire spool 1001 is rotatably connected to the high-pressure gas nozzle through a universal joint bracket. During the cutting process, the operator can adjust the direction of the high-pressure gas nozzle according to the actual needs to ensure that nitrogen can be accurately sprayed into the cutting area, effectively prevent the workpiece from oxidizing, and improve the cutting quality.
[0027] In this embodiment, as Figure 3As shown, several threaded through holes are equidistantly provided above the sliding rod on the welding table 1 for sliding connection of the second positioning seat 3. The second positioning seat 3 is threadedly connected to these through holes by quick-release bolts. The lower tungsten wire disc 1002 is slidably connected to the surface of the welding table 1 by universal wheels rotatably connected to its bottom. When the workpiece is small, only the first positioning seat 2 can be used to fix the workpiece. When the workpiece is large, the second positioning seat 3 can be used to achieve stable support and positioning of the workpiece. The position of the second positioning seat 3 can be flexibly adjusted according to the size of the workpiece. The second positioning seat 3 is connected to the threaded through holes at corresponding positions on the surface of the welding table 1 by quick-release bolts. The assembly and disassembly process is simple and quick, which greatly shortens the workpiece clamping time.
[0028] In this embodiment, as Figure 1 , Figure 6 and Figure 7 As shown, an air tank and a pulse power supply are fixedly connected to the surface of the L-shaped bracket 6. The air tank is connected to the high-pressure air nozzle on the outer wall of the upper tungsten wire disc 1001 via a pipe. One end of the pulse power supply is connected to the conductive copper sheet inside the lower tungsten wire disc 1002 via a wire, and the other end of the pulse power supply is connected to the conductive copper sheet inside the workpiece stage 5 via a wire. In ordinary wire cutting, the workpiece is prone to oxidation reaction with oxygen in the air at high temperatures, which affects the surface quality and performance of the workpiece. In this device, a high-pressure air nozzle is added to the surface of the upper tungsten wire disc 1001 of the cutting seat 10, and it is connected to the air tank fixed on one side via a pipe. Next, nitrogen is used for gas protection. As an inert gas, nitrogen has stable chemical properties and can form a protective gas curtain in the cutting area, effectively isolating oxygen from contact with the workpiece and preventing oxidation during the cutting process. This ensures that the physical and chemical properties of the workpiece are not affected. Nitrogen can also remove some heat, playing a cooling role and reducing the heat-affected zone of the cutting area. By reducing the emission of harmful gases and fumes generated by workpiece oxidation and high temperatures, the air quality of the working environment is improved, protecting the health of operators. Furthermore, nitrogen itself is non-toxic, odorless, non-flammable, and non-explosive, making it safe and reliable to use, with higher safety standards.
[0029] In this embodiment, as Figure 6 As shown, the first lead screw 7 is located above and perpendicular to the second lead screw 9, and the cutting seat 10 slides on the surface of the welding table 1 along a cross path through the helical transmission structure of the first moving seat 8 and the first lead screw 7, and the helical transmission structure of the cutting seat 10 itself and the second lead screw 9. The first lead screw 7 and the second lead screw 9 are perpendicular to each other, respectively controlling the cutting seat 10 to move in two mutually perpendicular directions, so that the cutting seat 10 can meet the various cutting requirements of the workpiece.
[0030] The usage and advantages of this utility model: The working process of this small wire cutting device with gas protection cutting function is as follows:
[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, when the workpiece is small, only the first positioning seat 2 is used for single-sided fixation. The workpiece is placed on the workpiece table 5 surface at the top of the first positioning seat 2. If the workpiece is large, a second positioning seat 3 can be added. After sliding the second positioning seat 3 to a suitable position according to the size of the workpiece, it is fixed with quick-release bolts according to the threaded through holes at the corresponding positions on the top of the welding table 1. Then, the workpiece is placed on the workpiece table 5 surface corresponding to the first positioning seat 2 and the second positioning seat 3. If the workpiece is regular in shape, the lower vertical side of the conductive clamp 502 on the surface of the workpiece table 5 can be used to fix the workpiece. If the workpiece is round, it can be placed on the difference between the lower and higher sections of the conductive clamp 502, and the round surface on the higher side can be used. The workpiece is fixed in the field. By rotating the reverse screw 501, the conductive clamp 502 slides along the groove on the surface of the workpiece table 5. The contact position of the conductive clamp 502 is further adjusted according to the specifications of the workpiece to achieve the degree of clamping. By rotating the first screw 7, the first moving seat 8, which is threaded to it, moves along the axial direction of the first screw 7, thereby driving the cutting seat 10 to move in one direction. By rotating the second screw 9, the cutting seat 10 moves along the axial direction of the second screw 9, so that the cutting seat 10 can slide along a "+" trajectory on the surface of the welding table 1. The cutting seat 10 can be moved to the starting position where the workpiece needs to be cut as needed. The worm gear 401 drives the worm wheel 402 to rotate through the motor. The worm wheel 402 shaft The shaft of the rod is integrally connected to the workpiece stage 5, thereby enabling the workpiece stage 5 to rotate and causing the B gear 404 to rotate as well. The other end of the workpiece stage 5 achieves smooth rotation through the meshing of the B gear 404 and the A gear 403. The steering assembly 4 can position the workpiece fixed on the surface of the workpiece stage 5 in a suitable cutting position. During the cutting process, the gas cylinder valve is opened, allowing the nitrogen gas in the gas cylinder to be transported through the pipeline to the high-pressure gas nozzle on the outer wall of the upper tungsten wire disc 1001. The high-pressure gas nozzle can be rotated to a suitable position with the help of the universal bracket, forming a protective gas atmosphere in the cutting area to prevent workpiece oxidation. Since one end of the pulse power supply on the surface of the L-shaped bracket 6 is connected to the conductive copper sheet inside the lower tungsten wire disc 1002, and the other end is connected to the conductive copper sheet inside the workpiece stage 5. The conductive copper sheet, tungsten wire, and workpiece are electrically connected via conductive clamps 502, etc. A pulse voltage is applied between the tungsten wire and workpiece by a pulse power supply. With the aid of an externally sprayed working fluid, which fills the gap between the tungsten wire and workpiece, when the pulse voltage rises to a certain level, the working fluid is broken down, forming an instantaneous conductive channel between the tungsten wire and workpiece. After the discharge channel is formed, a high-temperature, high-pressure electric spark is generated. This high-temperature, high-pressure electric spark instantly melts and vaporizes the material on the workpiece surface, achieving material removal. With the continuous action of numerous pulses, countless tiny pits accumulate, completing the cutting process. Due to contact with the workpiece, the tungsten wire fixed between the upper tungsten wire disc 1001 and the lower tungsten wire disc 1002 is easily damaged. When wear occurs...A winch 1003 is rotatably connected to the top of the upper tungsten wire reel 1001. The winch 1003 is driven by a motor and rotates. The height of the limit wheel is adjusted by a screw 1004 to press the wire feeding end, controlling the length and tension of the tungsten wire. The tungsten wire unwound by the winch 1003 can be fixed to the conductive copper sheets inside the upper and lower tungsten wire reels 1001 and 1002, respectively. Cover plates are bolted to the surfaces of both the upper and lower tungsten wire reels 1001 and 1002. A wire groove for tungsten wire routing is pre-drilled on one side of both the upper and lower tungsten wire reels 1001 and 1002. It is clear that when adjusting the workpiece cutting angle, considering factors such as workpiece stability and cutting accuracy during the cutting process, only a single-sided fixing method can be used. This means using only the first positioning seat 2 or the second positioning seat 3 to fix the workpiece. Single-sided fixing provides more flexible rotation space during angle adjustment, avoiding the limitations of double-sided fixing and ensuring the workpiece is not obstructed during rotation. The combined effect of the first positioning seat 2 and the second positioning seat 3 can be used to fix larger workpieces that require further processing in a horizontal cutting position.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A small wire cutting device having a gas shielded cutting function, characterized by, include: A welding table (1) is fixedly connected to a first positioning seat (2) at one end of its top and to a second positioning seat (3) at the other end of its top. The tops of the first positioning seat (2) and the second positioning seat (3) are rotatably connected to a workpiece table (5) via a steering assembly (4). An L-shaped bracket (6) is welded to the top of the welding table (1). The L-shaped bracket (6) is located between the first positioning seat (2) and the second positioning seat (3). A first lead screw (7) is rotatably connected to the top wall of the L-shaped bracket (6). A first moving seat (8) is threadedly connected to the outer wall of the first lead screw (7). A second lead screw (9) is rotatably connected to the inner wall of the first moving seat (8). A cutting seat (10) is threadedly connected to the outer wall of the second lead screw (9).
2. The thin wire cutting device with a gas protection cutting function according to claim 1, characterized in that, One end of the steering assembly (4) is rotatably connected to a worm gear (401) and a worm wheel (402) that mesh with each other. The other end of the steering assembly (4) is rotatably connected to a gear A (403) and a gear B (404) that mesh with each other. One end of the shaft at the center of the worm wheel (402) rotates on the inner wall of one side of the steering assembly (4), and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table (5). One end of the shaft at the center of the gear A (403) rotates on the inner wall of the other side of the steering assembly (4), and the other end is fixedly connected to the outer wall of the corresponding side of the workpiece table (5).
3. The thin wire cutting device having a gas shield cutting function according to claim 1, wherein The workpiece stage (5) is rotatably connected to a reverse lead screw (501). A conductive clamp (502) is slidably connected to the surface of the workpiece stage (5) through a groove. The bottom of the conductive clamp (502) is sleeved on the outer wall of the reverse lead screw (501) and forms a helical transmission structure with it. At the same time, a conductive copper sheet is fixedly connected inside the workpiece stage (5). The conductive copper sheet and the conductive clamp (502) are electrically connected through a wire. The outer wall of the conductive clamp (502) is covered with an insulating layer.
4. The thin wire cutting device having a gas protection cutting function according to claim 1, wherein The cutting seat (10) is integrally connected to an upper tungsten wire disc (1001) and a lower tungsten wire disc (1002). A winch (1003) is rotatably connected to the top of the upper tungsten wire disc (1001). A screw (1004) is threadedly connected to the cutting seat (10) corresponding to the position of the upper tungsten wire disc (1001). The shaft of the screw (1004) passes through the cutting seat (10) and is rotatably connected to a limit wheel. A high-pressure air nozzle is rotatably connected to one side of the outer wall of the upper tungsten wire disc (1001) through a universal joint bracket. The upper tungsten wire disc (1001) and the lower tungsten wire disc (1002) are fixedly connected by tungsten wire. A conductive copper sheet is fixedly connected inside the lower tungsten wire disc (1002).
5. The thin wire cutting device having a gas shield cutting function according to claim 1, wherein Above the sliding rod of the welding table (1) used for sliding connection of the second positioning seat (3), several threaded through holes are opened at equal intervals, and the second positioning seat (3) is threadedly connected to these through holes by quick-release bolts, and the lower tungsten wire disc (1002) is slidably connected to the surface of the welding table (1) by universal wheels rotatably connected to its bottom.
6. The thin wire cutting device with a gas shield cutting function according to claim 1, wherein The L-shaped bracket (6) is fixedly connected to an air tank and a pulse power supply. The air tank is connected to the high-pressure air nozzle on the outer wall of the upper tungsten wire disc (1001) through a pipe. One end of the pulse power supply is connected to the conductive copper sheet inside the lower tungsten wire disc (1002) through a wire, and the other end of the pulse power supply is connected to the conductive copper sheet inside the workpiece stage (5) through a wire.
7. The thin wire cutting device with a gas shield cutting function according to claim 1, wherein The first lead screw (7) is located above the second lead screw (9) and is perpendicular to it. The cutting seat (10) slides on the surface of the welding table (1) along a cross-shaped trajectory through the helical transmission structure of the first moving seat (8) and the first lead screw (7), and the helical transmission structure of the cutting seat (10) itself and the second lead screw (9).