A fast wire EDM machine tool

Abstract

The application relates to the technical field of wire cutting, in particular to a fast-wire cutting machine tool, which comprises a machine table, a wire feeding mechanism and a working liquid circulating mechanism, wherein the working liquid circulating mechanism comprises a collecting frame, a treatment box and a pipeline connecting the collecting frame and the treatment box. In the application, the flow of impurities is limited by setting an aggregation area, and the impurities with large particles are removed; the through hole one, the through hole two and the first filter screen are arranged to perform secondary impurity removal, so that the impurities are accumulated in the aggregation area; the magnetic attraction roller can attract iron impurities, and the iron impurities on the magnetic attraction roller are scraped off by the scraping piece; the two can cooperate with each other to effectively remove the iron impurities.

Description

Technical Field

[0001] This invention relates to the field of wire cutting technology, and more specifically to a fast wire cutting machine. Background Technology

[0002] Fast wire EDM machines generally use molybdenum wire for metal cutting, with a wire feed speed typically ranging from 8 to 12 meters per second. The molybdenum wire can be recycled. Due to the high processing speed and low processing precision of fast wire EDM machines, emulsion or water-based working fluids are generally selected. The working fluid pressure is generally high, resulting in high chip removal efficiency.

[0003] Fast wire EDM machines are generally suitable for rough machining. However, due to the properties of the molybdenum wire itself, the wire may become loose, which can affect the machining process.

[0004] Chinese Patent Application No. 202410360247.8 discloses a wire EDM machine tool with rapid electrode wire adjustment function; it includes: a machine tool body, which is capable of performing wire EDM; a wire storage drum and several guide wheels are rotatably connected inside the machine tool body, the wire storage drum is wound with cutting wire and guided by the guide wheels to form a loop, and the cutting wire is located vertically at the cutting work area; the wire EDM machine tool with rapid electrode wire adjustment function also includes: an automatic tensioning unit; the present invention, by setting an automatic tensioning unit inside the machine tool body, can automatically tension the cutting wire when it becomes slack, thus reducing the impact of cutting wire slack on processing.

[0005] However, Chinese Patent Application No. 202410360247.8, paragraph 0038, states that "during installation, the tension wheel 243 contacts and squeezes the cutting line 13, causing the cutting line 13 to be in a taut state. When the tension is adjusted to a suitable tightness, the first spring 25 is in a stretched state, and one end of the support frame 242 contacts the first block 26. The drive motor 21 does not start. When loosening occurs, the support frame 242 gradually moves, and the first spring 25 recovers its deformation. When one end of the support frame 242 contacts the second block 27, the drive motor 21 starts." Paragraph 0041 states that "a second cavity 4 is provided inside the control cylinder 24 near the tension wheel 243. A pressing plate 41 is slidably connected inside the second cavity 4. A second spring 42 is fixed between the end of the second cavity 4 and the pressing plate 41. A pressing rod 43 is fixed on the pressing plate 41. The pressing rod 43 can extend into the first cavity 241."

[0006] It has two springs in the control cylinder, and the elastic forces of the two springs cancel each other out, making it difficult to control the contact force between the tension wheel and the cutting line.

[0007] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0008] The purpose of this invention is to provide a fast wire EDM machine tool that can effectively solve the above-mentioned technical problems.

[0009] To achieve the objectives of this invention, the following technical solution is adopted:

[0010] A high-speed wire EDM machine tool includes: a machine base, a wire feeding mechanism, and a working fluid circulation mechanism; the wire feeding mechanism includes: a wire storage spool, a wire feeding frame, and a wire return frame; a tension monitoring component for monitoring the tension of the electrode wire is provided on the wire feeding frame and / or the wire return frame, the tension monitoring component includes: a first tensioning wheel, a mounting frame, a connecting sleeve, a first spring, and an adjusting component; the first tensioning wheel is rotatably mounted on the mounting frame, the connecting sleeve is fixedly mounted on the mounting frame, one end of the first spring is sleeved on the connecting sleeve, the lower end of the adjusting component is inserted into the connecting sleeve, and an abutment ring is integrally connected to the adjusting component, the upper end of the first spring abuts against the abutment ring.

[0011] Furthermore: the mounting bracket is divided into mounting bracket one and mounting bracket two, and a second spring that pushes mounting bracket one and mounting bracket two. The second spring is in a compressed state. The first tension wheel is divided into first tension wheel one and first tension wheel two, which are fixedly connected to mounting bracket one and mounting bracket two respectively. The connecting sleeve is divided into two parts and is fixedly connected to mounting bracket one and mounting bracket two respectively.

[0012] Furthermore: the lower end of the adjusting member has a first inclined surface, and the two parts of the connecting sleeve have second inclined surfaces, with the first inclined surface and the second inclined surface fitting together.

[0013] Furthermore: the first tensioning wheel has a connecting rotating part, which is rotatably connected to the mounting bracket; the first tensioning wheel has an abutting part, which is fixedly connected to the connecting rotating part; the first tensioning wheel has an intermediate positioning body, the electrode wire is in contact with the intermediate positioning body, and the intermediate positioning body is fixedly connected to the abutting part; the second first tensioning wheel is annular, and the intermediate positioning body is in sliding contact with the inner annular surface of the second first tensioning wheel.

[0014] Furthermore, the working fluid circulation mechanism includes a collection frame, a processing tank, and pipes connecting the collection frame and the processing tank.

[0015] Furthermore: the collection frame has two through holes on its side, the second through hole being located below the first through hole, the second through hole being connected to the first through hole by a connecting pipe, the connecting pipe being connected to the pipeline, and the second through hole being provided with a first filter screen.

[0016] Furthermore: the bottom surface of the collection frame is provided with isolation ribs, and the isolation ribs on both sides or the isolation ribs and the side surface form a gathering area.

[0017] Furthermore: a magnetic suction roller is rotatably installed inside the processing box, a scraper is provided on one side of the magnetic suction roller, and a magnetic component is installed inside the magnetic suction roller.

[0018] Furthermore, the processing box is equipped with a pushing component that drives the tail end of the pipe to move back and forth.

[0019] Furthermore: the pushing component includes: a rotating drum, on which a rotating groove is formed, a slider is slidably connected in the rotating groove, and a connecting rod is fixedly connected to the slider, the connecting rod being connected to the tail end of the pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The fast wire EDM machine tool of the present invention can be adapted to the use requirements of electrode wires with different tensions, and can clamp the electrode wire when it breaks.

[0022] 2. The fast wire EDM machine tool of the present invention restricts the flow of impurities by setting up a gathering area to remove larger particles of impurities. The setting of the first through hole, the second through hole and the first filter screen can perform secondary impurity removal, so that the impurities accumulate in the gathering area. The magnetic roller can adsorb iron impurities, and the scraper can scrape off the iron impurities on the magnetic roller. The two work together to effectively remove iron impurities. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0024] Figure 1 This is a schematic diagram of the fast wire EDM machine tool of the present invention.

[0025] Figure 2 This is a schematic diagram of the wire feeding frame of the fast wire EDM machine tool of the present invention.

[0026] Figure 3 This is a schematic diagram of the first tensioning wheel of the fast wire EDM machine tool of the present invention.

[0027] Figure 4 This is a schematic diagram of the first inclined plane of the fast wire EDM machine tool of the present invention.

[0028] Figure 5 This is a schematic diagram of the collection frame of the fast wire EDM machine tool of the present invention.

[0029] Figure 6This is a schematic diagram of the processing box of the fast wire EDM machine tool of the present invention.

[0030] Figure 7 This is a cross-sectional view of the processing box of the fast wire EDM machine tool of the present invention.

[0031] Figure 8 for Figure 7 An enlarged schematic diagram of part A in the middle.

[0032] In the diagram: 1. Machine base; 2. Wire feeding mechanism; 3. Fixing mechanism; 4. Working fluid circulation mechanism; 21. Wire storage drum; 22. Wire feeding frame; 23. Wire return frame; 24. First tensioning roller; 25. Mounting frame; 26. Connecting sleeve; 27. First spring; 28. Adjusting component; 29. ​​Abutment ring; 210. Mounting frame one; 211. Mounting frame two; 212. Second spring; 213. First tensioning roller one; 214. First tensioning roller two; 215. First inclined plane; 216. Second inclined plane; 217. Connecting rotating part; 218. Abutment part; 219. Intermediate positioning body; 220. Fixing frame; 221. Sliding plate; 222. Telescopic rod; 223. Second tensioning wheel; 31. Fixing assembly; 32. Adjusting assembly; 41. Collection frame; 42. Processing box; 43. Pipe; 44. Through hole one; 45. Through hole two; 46. Isolation rib; 47. Aggregation area; 48. Magnetic suction roller; 49. Scraper; 410. Scraper plate; 411. Storage chamber; 412. Drive motor; 413. Rotary drum; 414. Rotary groove; 415. Slider; 416. Connecting rod; 417. Fixing plate; 418. Connector; 419. Second filter screen; 420. Third filter screen; 421. Receiving plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0034] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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 on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0035] like Figures 1 to 8 As shown, the fast wire EDM machine tool of the present invention includes: a machine base 1, a wire feeding mechanism 2, a fixing mechanism 3, and a working fluid circulation mechanism 4.

[0036] The fixing mechanism 3 is used to fix the workpiece, and includes at least a fixing component 31 for fixing the workpiece, and an adjusting component 32 for moving the fixing component 31 in a plane. The fixing component 31 is a clamp, which is designed according to the shape of the workpiece to be processed, and will not be described in detail in this application. The adjusting component 32 includes a movable frame and an adjusting lever connected to the movable frame. The movable frame is moved by rotating the adjusting lever. This technology is common knowledge, so it will not be described in detail here.

[0037] The wire feeding mechanism 2 includes: a wire storage drum 21, a wire feeding frame 22, and a wire return frame 23. As in the prior art, the wire storage drum 21 is connected to a power motor that drives it to rotate actively. The electrode wire is fed through the wire storage drum 21, passes through the wire feeding frame 22 and the wire return frame 23 in sequence, and then moves to the wire storage drum 21, forming the overall movement of the electrode wire.

[0038] The electrode wire is in a vertical position between the wire feeding frame 22 and the wire return frame 23. When the electrode wire is energized, the vertical electrode wire between the wire feeding frame 22 and the wire return frame 23 becomes a cutting line to cut the workpiece to be processed.

[0039] The wire feeding frame 22 and / or the wire return frame 23 are provided with a tension monitoring component for monitoring the tension of the electrode wire. The tension monitoring component includes: a first tensioning wheel 24, a mounting frame 25, a connecting sleeve 26, a first spring 27, and an adjusting member 28. The first tensioning wheel 24 is rotatably mounted on the mounting frame 25, the connecting sleeve 26 is fixedly mounted on the mounting frame 25, one end of the first spring 27 is sleeved on the connecting sleeve 26, the adjusting member 28 is threadedly connected to the wire feeding frame 22, the lower end of the adjusting member 28 is inserted into the connecting sleeve 26, and an abutment ring 29 is integrally connected to the adjusting member 28. The upper end of the first spring 27 abuts against the abutment ring 29.

[0040] In other words, when the adjusting member 28 is rotated, since the adjusting member 28 is threadedly connected to the wire feeding frame 22, the adjusting member 28 can be moved up or down to adjust the distance between the abutment ring 29 and the connecting sleeve 26, thereby changing the compression degree of the first spring 27 and adjusting the elastic force of the first spring 27. When the electrode wire abuts against the first tensioning wheel 24, the tension force and the elastic force are equal in magnitude.

[0041] It should be added here that the electrode wire itself has a certain tension. The tension is generally between 10N and 30N, depending on the material and thickness of the material to be cut. Before use, the required tension of the electrode wire needs to be determined. Then, the measuring end of the force gauge is brought into contact with the first tensioning wheel 24, and the adjusting member 28 is moved downward to change the distance between the abutment ring 29 and the connecting sleeve 26 until the reading of the force gauge is the required tension of the electrode wire. This allows for flexible application to various usage scenarios.

[0042] It should be explained here that this application is only for the convenience of description. The tension monitoring component can be placed on the wire feeding frame 22 and / or the wire return frame 23, and the principle is the same. The ends of the wire feeding frame 22 and the wire return frame 23 are provided with a second tensioning wheel 223.

[0043] However, in actual use, the electrode wire may suddenly break, such as due to high tension or deviation of the cutting trajectory.

[0044] As a further improvement of the present invention: the mounting bracket 25 is divided into mounting bracket one 210 and mounting bracket two 211, and a second spring 212 that pushes the mounting bracket one 210 and mounting bracket two 211. The second spring 212 is in a compressed state, so that the mounting bracket one 210 and the mounting bracket two 211 tend to move towards the center.

[0045] The first tensioning roller 24 is divided into a first tensioning roller 213 and a second tensioning roller 214, which are respectively connected to the first mounting bracket 210 and the second mounting bracket 211. The connecting sleeve 26 is divided into two parts and is fixedly connected to the first mounting bracket 210 and the second mounting bracket 211 respectively. The lower end of the adjusting member 28 has a first inclined surface 215, and the two parts of the connecting sleeve 26 have second inclined surfaces 216. The first inclined surface 215 and the second inclined surface 216 are in contact. When the electrode wire gradually becomes thinner, the first spring 27 pushes the mounting bracket 25 downward under the action of elastic force. This causes the first tensioning wheel 24 to move downwards. At this time, the connecting sleeve 26 has a tendency to move downwards away from the adjusting member 28. Since the first inclined surface 215 and the second inclined surface 216 are in contact, the first tensioning wheel 213 and the second tensioning wheel 214 gradually approach each other. If the electrode wire suddenly breaks, since the first tensioning wheel 213 and the second tensioning wheel 214 are close to each other, under the action of the second spring 212, the first tensioning wheel 213 and the second tensioning wheel 214 can be in contact to clamp the electrode wire.

[0046] It should be further explained that the first tensioning wheel 213 has a connecting rotating part 217, which is rotatably connected to the mounting bracket 210. The connecting rotating part 217 is a rotating shaft. The first tensioning wheel 213 has an abutting part 218, which is fixedly connected to the connecting rotating part 217. The first tensioning wheel 213 has an intermediate positioning body 219, and the electrode wire contacts the intermediate positioning body 219. The intermediate positioning body 219 is fixedly connected to the abutting part 218. Fixed connection; the first tensioning wheel 214 is annular, and the intermediate positioning body 219 slides in contact with the inner annular surface of the first tensioning wheel 214. The inner annular surface of the first tensioning wheel 214 positions the first tensioning wheel 213 for rotation and movement, ensuring stable rotation of the first tensioning wheel 213 and preventing it from shifting when moving. The end face of the first tensioning wheel 214 and the abutment part 218 work together to clamp the electrode wire.

[0047] It should be added here that the diameter of the intermediate positioning body 219 is smaller than the diameter of the abutment part 218.

[0048] It should be explained here that a fixing frame 220 is fixed on the wire feeding frame 22 and / or the wire return frame 23. The fixing frame 220 is provided with a slide rail, which restricts the sliding plate 221 inside it to slide only up and down. The mounting frame one 210 and the mounting frame two 211 are connected to the sliding plate 221 through a telescopic rod 222. The second spring 212 is sleeved on the telescopic rod 222. That is to say, the elastic force of the first spring 27 and the tension of the electrode wire can control the first tensioning wheel 24 to move up and down, and the elastic force of the second spring 212 causes the first tensioning wheel one 213 and the first tensioning wheel two 214 to move towards the middle.

[0049] In this embodiment, the adjusting member 28 is threadedly connected to the fixing frame 220.

[0050] During use, this invention can not only meet the needs of electrode wires with different tensions, but also clamp the electrode wire when it breaks.

[0051] It should also be added here that a contact sensor can be provided on the top of the abutment ring 29 and the mounting bracket 25 as needed. When the mounting bracket 25 moves down, the contact sensor can send a signal. This is existing technology and will not be described in detail here.

[0052] The working fluid circulation mechanism 4 includes: a collection frame 41, a processing tank 42, and a pipe 43 connecting the collection frame 41 and the processing tank 42. The collection frame 41 is used to collect the working fluid, and then the working fluid flows through the pipe 43 to the processing tank 42 under the influence of gravity and other factors. Impurities are removed in the processing tank 42, and then it can be recycled.

[0053] It should be explained here that the working fluid of a fast wire EDM machine is mainly used to flush away debris and ensure smooth processing.

[0054] The upper end of the collection frame 41 is provided with an opening, through which working fluid and debris can enter the collection frame 41. The height of the collection frame 41 is relatively low, generally 10 cm, to avoid the collection frame 41 affecting the processing. The collection frame 41 has two through holes on its side. Through hole 45 is located below through hole 44. Through hole 45 and through hole 44 are connected by connecting pipes, and the connecting pipes are connected to the pipe 43.

[0055] In one embodiment, a first filter screen is provided on the second through hole 45. The first filter screen is used for preliminary filtration. When the working fluid is low, the working fluid passes through the first filter screen and enters the inside of the pipe 43. When the working fluid is high, part of the working fluid passes through the first filter screen and the other part enters the pipe 43 through the first through hole 44. It should be explained here that impurities generally accumulate on the bottom surface. Therefore, the first filter screen is provided at the lower position of the second through hole 45. The first through hole 44, located above, has fewer impurities and avoids overflow, so no filter screen is provided.

[0056] The bottom surface of the collection frame 41 is provided with isolation ribs 46. An accumulation area 47 is formed between the isolation ribs 46 on both sides or between the isolation ribs 46 and the side of the collection frame 41. Impurities also accumulate in the accumulation area 47. By setting the accumulation area 47, the difficulty of impurity flow can be increased, thereby restricting the flow of impurities and causing some impurities to accumulate in the accumulation area 47. The height of the isolation ribs 46 should not exceed 1 cm. It should be noted here that the mixture of working fluid and impurities accumulates in the accumulation area 47, which is relatively difficult to clean. Moreover, the impurity content in the mixture of working fluid and impurities is high. If impurities are removed, it may clog the filter screen. Therefore, a negative pressure device can be used for adsorption treatment. In other words, the isolation ribs 46 can play a preliminary role in removing impurities.

[0057] A magnetic roller 48 is rotatably mounted inside the processing box 42. A scraper 49 is provided on one side of the magnetic roller 48. A magnetic component is installed inside the magnetic roller 48. The pipe 43 is directly opposite the magnetic roller 48 so that the magnetic roller 48 can attract iron impurities. During the rotation of the magnetic roller 48, it will come into contact with the scraper 49 to scrape off the iron impurities on the magnetic roller 48.

[0058] It should be noted that the magnetic component is a strong magnet; the scraper component 49 consists of an inclined scraper plate 410 and a storage cavity 411. One end of the scraper plate 410 contacts the magnetic roller 48 to scrape off iron impurities and store them inside the storage cavity 411; the magnetic roller 48 is connected to a drive motor 412 that drives it to rotate actively. The drive motor 412 is connected to a reducer, so that the drive motor 412 can drive the magnetic roller 48 to rotate at a lower speed through the reducer.

[0059] However, in actual use, there is a point where the pipe 43 faces the magnetic roller 48, which leads to incomplete adsorption. Therefore, the processing box 42 is equipped with a pushing component that drives the tail of the pipe 43 to move back and forth.

[0060] The pushing assembly includes a rotating drum 413 with a rotating groove 414. A slider 415 is slidably connected within the rotating groove 414. A connecting rod 416 is fixedly connected to the slider 415 and connected to the tail end of the pipe 43. The rotating drum 413 is connected to a drive motor 412. When the drive motor 412 drives the rotating drum 413 to rotate, the slider 415 reciprocates within the rotating groove 414, thereby driving the connecting rod 416 to reciprocate. This causes the tail end of the pipe 43 to reciprocate, thus expanding the spraying range of the working fluid and increasing the contact area between the working fluid and the magnetic roller 48, resulting in a better magnetic attraction effect.

[0061] It should be further noted that the processing box 42 is externally provided with multiple fixing plates 417. The connecting rod 416 passes through the fixing plates 417 and slides in contact with them. A linear bearing can be provided between the connecting rod 416 and the fixing plates 417 to allow for better movement of the connecting rod 416. The connecting rod 416 is fixedly connected to the tail end of the pipe 43 by a connector 418. The connector 418 includes a first fixing ring fixedly connected to the connecting rod 416 and a second fixing ring fixedly connected to the pipe 43. The first fixing ring and the second fixing ring are fixedly connected by a vertical rod.

[0062] Even if the tail of the pipe 43 moves back and forth, its range of movement is still limited. Therefore, a receiving plate 421 is fixed inside the processing box 42. The receiving plate 421 is located one centimeter below the magnetic roller 48. When the working fluid flows onto the receiving plate 421, the magnetic roller 48 can remove iron from it, making the iron removal effect better.

[0063] It should be added here that the processing tank 42 is equipped with a second filter 419 and a third filter 420, so that the working fluid can be filtered multiple times.

[0064] In this invention, by setting up the aggregation area 47 to restrict the flow of impurities and remove larger particles of impurities, the first through hole 44, the second through hole 45 and the first filter screen can perform secondary impurity removal, so that impurities accumulate in the aggregation area 47; the magnetic roller 48 can adsorb iron impurities while the scraper 49 scrapes off the iron impurities on the magnetic roller 48. The two work together to remove iron impurities effectively and for a long time.

[0065] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0066] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A high-speed wire-cut EDM machine, characterized by: Include: Machine (1), wire feeding mechanism (2), and working fluid circulation mechanism (4); The wire feeding mechanism (2) comprises a wire storage cylinder (21), a wire feeding frame (22) and a wire returning frame (23); a tension monitoring assembly is arranged on the wire feeding frame (22) and / or the wire returning frame (23) to monitor the tension of the electrode wire; the tension monitoring assembly comprises a first tensioning wheel (24), a mounting frame (25), a connecting sleeve (26), a first spring (27) and an adjusting piece (28); the first tensioning wheel (24) is rotatably mounted on the mounting frame (25), the connecting sleeve (26) is fixedly mounted on the mounting frame (25), one end of the first spring (27) is sleeved on the connecting sleeve (26), the lower end of the adjusting piece (28) is inserted into the connecting sleeve (26), the adjusting piece (28) is integrally connected with an abutting ring (29), and the upper end of the first spring (27) abuts against the abutting ring (29); The mounting frame (25) is divided into mounting frame one (210) and mounting frame two (211), and a second spring (212) is arranged to push the mounting frame one (210) and the mounting frame two (211); the second spring (212) is in a compressed state; the first tensioning wheel (24) is divided into first tensioning wheel one (213) and first tensioning wheel two (214), and is connected with the mounting frame one (210) and the mounting frame two (211) respectively; the connecting sleeve (26) is divided into two parts and is fixedly connected with the mounting frame one (210) and the mounting frame two (211) respectively; The lower end of the adjusting piece (28) has a first inclined surface (215), and the two parts of the connecting sleeve (26) have a second inclined surface (216); the first inclined surface (215) is in abutment with the second inclined surface (216); The first tensioning wheel one (213) has a connecting rotating part (217) rotatably connected with the mounting frame one (210); the first tensioning wheel one (213) has an abutting part (218) fixedly connected with the connecting rotating part (217); the first tensioning wheel one (213) has an intermediate positioning body (219) in contact with the electrode wire, and the intermediate positioning body (219) is fixedly connected with the abutting part (218); the first tensioning wheel two (214) is annular, and the intermediate positioning body (219) is in sliding contact with the inner ring surface of the first tensioning wheel two (214); The working fluid circulation mechanism (4) comprises a collecting frame (41), a treatment box (42) and a pipeline (43) connecting the collecting frame (41) and the treatment box (42); A magnetic suction roller (48) is rotatably installed in the treatment box (42); a scraping piece (49) is arranged on one side of the magnetic suction roller (48); and a magnetic piece is installed in the magnetic suction roller (48).

2. A high-speed wire-cut machine tool according to claim 1, characterized in that: Two through holes are formed in the lateral side of the collecting frame (41), and the second through hole (45) is located below the first through hole (44). The second through hole (45) is in communication with the first through hole (44) and is provided with a connecting pipe. The connecting pipe is connected with the pipeline (43), and the first filter screen is arranged on the second through hole (45).

3. A high-speed wire-cut machine tool according to claim 2, characterized in that: The bottom surface of the collecting frame (41) is provided with a separation rib (46), and the two sides of the separation rib (46) or the separation rib (46) and the lateral side of the collecting frame (41) form an accumulation area (47).

4. The high-speed wire-cut machine tool of claim 1, wherein: A pushing assembly is arranged on the processing box (42) to reciprocally move the tail of the pipeline (43).

5. A high-speed wire-cut machine tool according to claim 4, characterized in that: The pushing assembly comprises a rotating drum (413) provided with a rotating groove (414), a sliding block (415) slidably connected in the rotating groove (414), and a connecting rod (416) fixedly connected with the sliding block (415) and connected with the tail of the pipeline (43).

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