A wire saw machine

Abstract

The application discloses a linear cutting machine, and belongs to the technical field of linear cutting machines.The linear cutting machine comprises a rack, a multi-directional moving platform installed on the rack, a cutting arm installed on the rack, a wire storage cylinder connected to the left end of the rack, a cleaning component installed on the side of the wire storage cylinder, a limiting box, a guide opening located on the right side of the limiting box, two reverse rotating cleaning wheels installed in the limiting box, and a transmission gear connected to the central shaft of the two cleaning wheels by a key.The linear cutting machine can fully clean the attachments on the surface of the electrode wire by the contact between the cleaning liquid, the roller and the electrode wire, and can clean the dirt in the groove of the roller by the scraper through the contact between the roller and the brush plate when the roller rotates, so that the dirt is prevented from gathering in the groove of the roller, and the dirt is prevented from re-attaching to the electrode wire during subsequent cleaning.

Description

Technical Field

[0001] This invention relates to the field of wire EDM machine tool technology, specifically to a wire EDM machine tool. Background Technology

[0002] Wire EDM is a special machine tool that uses the principle of electrical erosion for precision machining. It removes material by using the high temperature generated by pulsed spark discharge between the metal wire (electrode wire) and the workpiece, thereby achieving the cutting and machining of complex shapes and ultra-high precision parts.

[0003] For example, a wire cutting electrode wire deburring mechanism, as disclosed in announcement number CN218904680U, includes two housings that are joined and fitted together. Each housing contains a built-in collection structure. Deburring blades are fixedly connected to the arc-shaped portions on opposite sides of the two housings. By setting up a magnetic collection component, a scraper, and a collection structure, after the electrode wire passes downward through the deburring blades for deburring, the remaining metal debris is adsorbed and collected by the magnetic collection component. The magnetic collection component rotates when the electrode wire is moved, and when it passes through the scraper, the metal debris is scraped off into the collection structure, thus completing the centralized collection of debris.

[0004] The existing technology has the following technical problems: When cleaning impurities on the surface of the electrode wire, the existing wire cutting machine uses a scraper and rollers to clean the metal debris or other deposits on the electrode wire during the wire winding process. Although this can achieve a cleaning effect for a certain period of time, as the working time increases, the cleaned debris tends to accumulate on the rollers and scraper. Consequently, when the scraper and rollers continue to clean the electrode wire, the accumulated dirt tends to re-adhere to the electrode wire, resulting in a significant reduction in the cleaning effect.

[0005] Therefore, we propose a wire EDM machine tool to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a wire EDM machine tool to solve the problem mentioned in the background art. Currently available wire EDM machines, when cleaning impurities adhering to the electrode wire surface, use scrapers and rollers during wire winding. While these methods effectively clean the wire for a certain period, the cleaned debris tends to accumulate on the rollers and scrapers over time. Consequently, when the scrapers and rollers continue cleaning the electrode wire, the accumulated dirt easily re-adheres onto the wire, resulting in a significant reduction in cleaning effectiveness.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a wire cutting machine tool, comprising a frame and a multi-directional moving platform mounted on the frame, a cutting arm mounted on the frame, and a wire storage spool connected to the left end of the frame, the wire storage spool being mounted on the output end of a servo motor, a cleaning component mounted on the side of the wire storage spool, the cleaning component comprising a limit box and a guide port located on the right side of the limit box, two counter-rotating cleaning wheels mounted inside the limit box, a transmission gear being keyed to the central shaft of the two cleaning wheels, the central shaft of one of the cleaning wheels being connected to a power motor, a first infusion pipe being connected to the upper end of the limit box near the guide port, and a drain port being mounted at the bottom of the limit box, a movable rod being mounted on the side of the cleaning wheel, and a locking cap being connected to the end of the movable rod extending out of the limit box, a positioning brush plate being mounted on the movable rod, and cleaning bristles being mounted on the end of the positioning brush plate away from the movable rod.

[0008] Preferably, the middle part of the cleaning wheel is provided with a "V" shaped guide groove, and a cleaning component is provided on the inner side of the "V" shaped guide groove in the middle part of the cleaning wheel.

[0009] By adopting the above technical solution, the dirt attached to the electrode wire can be scraped off through the cleaning component inside the "V"-shaped guide groove of the cleaning wheel.

[0010] Preferably, the movable rod is rotatable on the limiting box, and the surface of the end of the movable rod extending out of the limiting box is provided with threads. The movable rod and the locking cap are threadedly connected, and the side of the locking cap facing the limiting box is provided with a rough surface.

[0011] By adopting the above technical solution, the locking cap can be pressed against the limiting box by rotating the moving rod, thereby limiting the rotation of the moving rod.

[0012] Preferably, two positioning brush plates are fixed on the movable rod, and the included angle between the two positioning brush plates is 90°. The interior of both positioning brush plates is set as a hollow structure, and the cleaning bristles at the end of the positioning brush plates are in contact with the cleaning component in the "V" shaped guide groove on the cleaning wheel in the initial state.

[0013] By adopting the above technical solution, when the cleaning wheel rotates, the cleaning component in the middle of the cleaning wheel comes into contact with the cleaning bristles, thereby enabling the cleaning bristles to brush away the dirt attached to the surface of the cleaning component in the middle of the cleaning wheel.

[0014] Preferably, the positioning brush plate has a guide hole at one end near the cleaning bristles, and a limiting post is inserted into the middle of the movable rod. The upper end of the limiting post is connected to a second infusion pipe. Both the second infusion pipe and the first infusion pipe are connected to an external cleaning machine supply device. The limiting post has an outlet hole on the side near the cleaning wheel, and the positioning brush plate has a convection hole at one end near the movable rod.

[0015] By adopting the above technical solution, the cleaning fluid can be guided through the guide hole opened on the positioning brush plate near the cleaning bristles, so that the cleaning fluid can also be sprayed towards the groove of the cleaning wheel to rinse the cleaning wheel.

[0016] Preferably, the diameters of the liquid outlet and the convection hole are equal, and only a single liquid outlet is provided on the limiting post. The movable rod can rotate on the limiting post, and the inner wall of the movable rod and the outer wall of the limiting post are in contact with each other.

[0017] By adopting the above technical solution, when the convection holes on the positioning brush plate are aligned with the liquid outlet holes on the limiting column, the cleaning fluid inside the limiting column can enter the interior of the positioning brush plate.

[0018] Preferably, a piston plate is installed inside the positioning brush plate, and a vertical guide rod is fixed to the upper end of the piston plate. The vertical guide rod is connected to the positioning brush plate through an auxiliary spring. An exhaust hole is opened at the upper end of the positioning brush plate, and a sealing ring is wrapped around the piston plate. The piston plate can move inside the positioning brush plate.

[0019] By adopting the above technical solution, the sealing performance of the piston plate can be improved when it moves inside the positioning brush plate through the sealing ring that wraps around the piston plate. At the same time, the air inside the positioning brush plate can be discharged to the outside when the piston plate moves.

[0020] Preferably, the side of the limiting post is connected to two branch pipes, and a transfer block is installed between the upper and lower branch pipes. An impeller is installed inside the transfer block, and the lower end shaft of the impeller extends out of the transfer block and is fixed to the connecting block. The connecting block is circumferentially recessed to form an inner concave part.

[0021] By adopting the above technical solution, after the cleaning fluid enters the inside of the limiting column, the cleaning fluid can enter the inside of the transfer block through the branch pipe above the transfer block, and then re-enter the inside of the limiting column through the branch pipe below.

[0022] Preferably, the connecting block has multiple recesses evenly distributed around its circumference, and the outline of the recesses is set to arc shape, and the end of the vertical guide rod below the recesses away from the piston plate is set to spherical shape.

[0023] By adopting the above technical solution, when the connecting block rotates, the vertical guide rod can move up and down reciprocally by moving away from and closer to the concave part and the vertical guide rod.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the wire cutting machine tool can thoroughly clean the deposits on the surface of the electrode wire by means of cleaning fluid and roller contact with the electrode wire, and at the same time, by means of contact between the roller rotating and the brush plate, the dirt in the roller groove can be cleaned by the scraper, so as to prevent the dirt from accumulating inside the roller groove and causing the dirt to re-adhere to the electrode wire in large quantities during subsequent cleaning.

[0025] 1. The rotation of the transmission gear enables the two cleaning wheels to rotate in opposite directions. The reverse rotation of the cleaning wheels can clean the debris attached to the electrode wire. At the same time, after the cleaning wheels rotate, they can contact the cleaning bristles on the positioning brush plate. The cleaning bristles can perform self-cleaning of the cleaning wheels, so that the cleaning wheels can always keep clean and clean the electrode wire.

[0026] 2. By aligning the liquid outlet on the limiting post with the convection holes on the positioning brush plate, the cleaning fluid can be sprayed towards the cleaning wheel through the guide holes on the positioning brush plate. The sprayed cleaning fluid can rinse the cleaning wheel and improve the cleaning effect. At the same time, the rotation of the impeller can drive the connecting block to rotate synchronously. By rotating the inner part of the connecting block and moving it closer and further away from the end of the vertical guide rod, the vertical guide rod and the piston plate can reciprocate. The reciprocating movement of the piston plate can squeeze the airflow inside the positioning brush plate outward through the guide holes, thereby blowing off the debris attached to the cleaning brush bristles. Attached Figure Description

[0027] Figure 1 This is a frontal perspective view of the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0029] Figure 3 This is a schematic diagram of the limiting box and guide port structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the cleaning wheel and transmission gear structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the wire storage drum and servo motor structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the positioning brush plate and cleaning bristles structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the liquid outlet and convection hole structures of the present invention;

[0034] Figure 8 This is a schematic diagram of the limiting post and branch pipe structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the connecting block and the concave part structure of the present invention.

[0036] In the diagram: 1. Frame; 2. Multi-directional moving platform; 3. Cutting arm; 4. Wire storage drum; 5. Servo motor; 6. Cleaning component; 7. Limit box; 8. Guide port; 9. Cleaning wheel; 10. Transmission gear; 11. Power motor; 12. Drain port; 13. First infusion tube; 14. Movable rod; 15. Locking cap; 16. Positioning brush plate; 17. Cleaning bristles; 18. Guide hole; 19. Limiting post; 20. Second infusion tube; 21. Outlet hole; 22. Convection hole; 23. Piston plate; 24. Vertical guide rod; 25. Auxiliary spring; 26. Exhaust hole; 27. Branch pipe; 28. Transfer block; 29. ​​Impeller; 30. Connecting block; 31. Concave part. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-9Existing wire EDM machines, when cleaning impurities adhering to the electrode wire surface, rely on scrapers and rollers during wire winding to remove metal debris or other adhering substances. While this method is effective for a certain period, the cleaned debris tends to accumulate on the rollers and scrapers over time. Consequently, when the scrapers and rollers continue cleaning the electrode wire, the accumulated dirt easily re-adheres to the wire, significantly reducing the cleaning effect. To address this technical problem, this embodiment discloses the following technical content: a wire EDM machine tool, including a frame 1 and a multi-directional moving platform 2 mounted on the frame 1. The frame 1 is equipped with a cutting... The cutter arm 3 and the left end of the frame 1 are connected to a wire storage drum 4, which is mounted on the output end of the servo motor 5. A cleaning component 6 is mounted on the side of the wire storage drum 4, and the cleaning component 6 includes a limit box 7 and a guide port 8 located on the right side of the limit box 7. Two counter-rotating cleaning wheels 9 are installed inside the limit box 7, and a transmission gear 10 is keyed to the central shaft of the two cleaning wheels 9. The central shaft of one of the cleaning wheels 9 is connected to a power motor 11. A first infusion tube 13 is connected to the upper end of the limit box 7 near the guide port 8, and a drain port 12 is installed at the bottom of the limit box 7. A movable rod 14 is mounted on the side of the cleaning wheel 9, and a locking cap 15 is connected to the end of the movable rod 14 that extends out of the limit box 7. A positioning brush plate 16 is installed on the 4th rod, and a cleaning brush bristle 17 is installed on the end of the positioning brush plate 16 away from the movable rod 14. The middle part of the cleaning wheel 9 is set with a "V" shaped guide groove, and a cleaning component is set on the inner side of the "V" shaped guide groove in the middle of the cleaning wheel 9. The movable rod 14 can rotate on the limiting box 7, and the surface of the end of the movable rod 14 extending out of the limiting box 7 is set with threads. The movable rod 14 and the locking cap 15 are threaded together. The side of the locking cap 15 facing the limiting box 7 is set with a rough surface. Two positioning brush plates 16 are fixed on the movable rod 14, and the included angle between the two positioning brush plates 16 is 90°. The interior of both positioning brush plates 16 is set with a hollow structure. The cleaning brush bristles 17 at the end of the positioning brush plate 16 are initially in contact with the cleaning component. The cleaning components in the "V"-shaped guide groove on the cleaning wheel 9 fit together. The positioning brush plate 16 has a guide hole 18 at one end near the cleaning bristles 17, and the middle of the movable rod 14 is inserted into a limiting post 19. The upper end of the limiting post 19 is connected to a second infusion tube 20. Both the second infusion tube 20 and the first infusion tube 13 are connected to the external cleaning machine supply equipment. The limiting post 19 has an outlet hole 21 on one side near the cleaning wheel 9, and the positioning brush plate 16 has a convection hole 22 at one end near the movable rod 14. The outlet hole 21 and the convection hole 22 have the same diameter, and the limiting post 19 has only a single outlet hole 21. The movable rod 14 can rotate on the limiting post 19, and the inner wall of the movable rod 14 and the outer wall of the limiting post 19 fit together.

[0039] When wire cutting is required, the electrode wire is passed through the guide port 8 and the limiting box 7 and connected to the wire storage drum 4. The metal is placed on the multi-directional moving platform 2 and fixed. The wire storage drum 4 is rotated by the servo motor 5 to retract and extend the electrode wire. The wire wire retracted and extended on the cutting arm 3 is used to wire cut the metal. The wire cutting operation method here is existing technology and will not be described in detail here. The cleaning fluid is delivered to the inside of the first infusion pipe 13 through an external cleaning fluid supply device. The cleaning fluid sprayed from the first infusion pipe 13 is used to rinse the electrode wire first, and the power is turned on at the same time. When the motor 11 is turned on, the transmission gear 10 drives the cleaning wheel 9 to rotate synchronously. The electrode wire, after being rinsed by the cleaning solution, passes between the two cleaning wheels 9. The cleaning wheels 9 further clean the debris attached to the surface of the electrode wire, preventing uneven discharge caused by excessive debris on the electrode wire. Since the cleaning wheel 9 rotates, the central groove of the cleaning wheel 9 can contact the cleaning bristles 17 at the end of the circumferential positioning brush plate 16 of the movable rod 14. At this time, the debris attached to the central groove of the rotating cleaning wheel 9 can be cleaned by the cleaning bristles 17, thereby ensuring the cleaning wheel... The cleanliness of the cleaning wheel 9 is ensured to prevent excessive debris from adhering to it and affecting the subsequent cleaning effect on the electrode wire. Simultaneously, the cleaning fluid supply device can deliver a portion of the cleaning fluid into the second inlet pipe 20. The cleaning fluid entering the second inlet pipe 20 can enter the positioning brush plate 16 through the outlet hole 21 on the limiting post 19 and the convection hole 22 on the positioning brush plate 16. Finally, the cleaning fluid in the positioning brush plate 16 is sprayed out through the guide hole 18 towards the groove of the cleaning wheel 9. The cleaning fluid can also rinse the cleaning wheel 9, thereby improving its self-cleaning effect. When cleaning a batch of workpieces… After processing is completed, the movable rod 14 can be rotated on the limiting box 7 to rotate the used positioning brush plate 16 to a position where it is disengaged from the cleaning wheel 9, and the other positioning brush plate 16 can be rotated to a position where it is in contact with the cleaning wheel 9. This makes it easy to clean the used positioning brush plate 16. After adjusting the movable rod 14, the locking cap 15 can be rotated. The locking cap 15 is pressed against the limiting box 7 after rotation, thereby fixing the position of the movable rod 14. The rotation method of the movable rod 14 is not limited to manual and can be replaced with electric as needed. This application uses manual adjustment as an example.

[0040] Example 2: The technical content disclosed in this example is a further improvement based on Example 1 described above, such as... Figures 4-9As shown, the following technical contents are disclosed in this embodiment: a piston plate 23 is installed inside the positioning brush plate 16, and a vertical guide rod 24 is fixed at the upper end of the piston plate 23. The vertical guide rod 24 is connected to the positioning brush plate 16 through an auxiliary spring 25. An exhaust hole 26 is opened at the upper end of the positioning brush plate 16. A sealing ring is wrapped around the piston plate 23. The piston plate 23 can move inside the positioning brush plate 16. Two branch pipes 27 are connected to the side of the limiting post 19, and a transfer block 28 is installed between the upper and lower branch pipes 27. An impeller 29 is installed inside the transfer block 28, and the lower end shaft of the impeller 29 extends out of the transfer block 28 and is fixed to the connecting block 30. The connecting block 30 is recessed inward in the circumference to form a concave part 31. Multiple concave parts 31 are evenly distributed in the circumference of the connecting block 30, and the outline of the concave part 31 is set as arc. The end of the vertical guide rod 24 below the concave part 31 away from the piston plate 23 is set as spherical.

[0041] When the second infusion tube 20 delivers cleaning fluid into the lower limiting column 19, the cleaning fluid enters the transfer block 28 through the upper branch tube 27. After entering the transfer block 28, the cleaning fluid impacts the impeller 29. This causes the impeller 29 to rotate, which in turn drives the connecting block 30 fixed on the central shaft to rotate synchronously. When the connecting block 30 rotates, the circumferential protrusion of the connecting block 30 contacts the spherical end of the vertical guide rod 24, thereby squeezing the vertical guide rod 24 and causing it to drive the piston plate 23 to move downward synchronously. Because the convection hole 22 on the positioning brush plate 16 away from the cleaning wheel 9 on the movable rod 14 is misaligned with the liquid outlet hole 21 on the limiting post 19, after the piston plate 23 moves downward, the airflow inside the positioning brush plate 16 can only be squeezed outward through the guide hole 18 on the side close to the cleaning bristles 17. Since the guide hole 18 is located between the cleaning bristles 17, when the airflow is squeezed outward through the guide hole 18, it can... Metal debris on the surrounding cleaning bristles 17 is blown off. At the same time, after the connecting block 30 rotates, the spherical end of its vertical guide rod 24 enters the concave part 31 on the connecting block 30. At this time, the vertical guide rod 24 and the piston plate 23 are reset and rebounded under the action of the auxiliary spring 25. In the initial state, the upper surface of the piston plate 23 is in contact with the positioning brush plate 16, so the rebounding piston plate 23 can also impact the positioning brush plate 16. The impact generates some vibration, which can shake off the debris attached to the cleaning bristles 17. This achieves automatic cleaning of the cleaning bristles 17 on the positioning brush plate 16 in the non-working state, reducing the difficulty of manual cleaning. When the cleaning bristles 17 have a lot of impurities attached and cannot be effectively cleaned by airflow or vibration, they can be manually cleaned by opening the limit box 7.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wire cutting machine tool, comprising a frame (1) and a multi-directional moving platform (2) mounted on the frame (1), wherein a cutting arm (3) is mounted on the frame (1), and a wire storage drum (4) is connected to the left end of the frame (1), the wire storage drum (4) being mounted on the output end of a servo motor (5), characterized in that: The side of the wire storage cylinder (4) is equipped with a cleaning component (6), and the cleaning component (6) includes a limiting box (7) and a guide port (8) located on the right side of the limiting box (7). The limiting box (7) is equipped with two cleaning wheels (9) that rotate in opposite directions. The central shaft of the two cleaning wheels (9) is keyed with a transmission gear (10). The central shaft of one of the cleaning wheels (9) is connected to a power motor (11). The upper end of the limiting box (7) is connected to the side of the guide port (8) with a first infusion tube (13). The bottom of the limiting box (7) is equipped with a drain port (12). The side of the cleaning wheel (9) is equipped with a movable rod (14), and the end of the movable rod (14) that extends out of the limiting box (7) is connected to a locking cap (15). The movable rod (14) is equipped with a positioning brush plate (16), and the end of the positioning brush plate (16) away from the movable rod (14) is equipped with cleaning bristles (17). The cleaning wheel (9) is provided with a "V" shaped guide groove in the middle, and a cleaning component is provided on the inner side of the "V" shaped guide groove in the middle of the cleaning wheel (9); The movable rod (14) can rotate on the limiting box (7), and the surface of the end of the movable rod (14) extending out of the limiting box (7) is provided with threads. The movable rod (14) and the locking cap (15) are connected by threads. The side of the locking cap (15) facing the limiting box (7) is provided with a rough surface. Two positioning brush plates (16) are fixed on the movable rod (14), and the included angle between the two positioning brush plates (16) is 90°. The interior of the two positioning brush plates (16) is set as a hollow structure. The cleaning bristles (17) at the end of the positioning brush plate (16) are in contact with the cleaning parts in the "V" shaped guide groove on the cleaning wheel (9) in the initial state. The positioning brush plate (16) has a guide hole (18) at one end near the cleaning bristles (17), and a limiting post (19) is inserted in the middle of the movable rod (14). The upper end of the limiting post (19) is connected to a second infusion tube (20). The second infusion tube (20) and the first infusion tube (13) are both connected to the external cleaning machine supply equipment. The limiting post (19) has an outlet hole (21) on one side near the cleaning wheel (9), and a convection hole (22) is opened at one end of the positioning brush plate (16) near the movable rod (14). The diameters of the outlet hole (21) and the convection hole (22) are equal, and only a single outlet hole (21) is provided on the limiting post (19). The movable rod (14) can rotate on the limiting post (19), and the inner wall of the movable rod (14) and the outer wall of the limiting post (19) are in contact with each other.

2. The wire cutting machine tool according to claim 1, characterized in that: The positioning brush plate (16) is equipped with a piston plate (23), and a vertical guide rod (24) is fixed at the upper end of the piston plate (23). The vertical guide rod (24) is connected to the positioning brush plate (16) through an auxiliary spring (25). An exhaust hole (26) is opened at the upper end of the positioning brush plate (16). A sealing ring is wrapped around the piston plate (23) in the circumference. The piston plate (23) can move inside the positioning brush plate (16).

3. A wire cutting machine tool according to claim 2, characterized in that: The side of the limiting post (19) is connected to two branch pipes (27), and a transfer block (28) is installed between the upper and lower branch pipes (27). An impeller (29) is installed inside the transfer block (28), and the lower end shaft of the impeller (29) extends out of the transfer block (28) and is fixed to the connecting block (30). The connecting block (30) is recessed inward in the circumferential direction to form an inner recess (31).

4. A wire cutting machine tool according to claim 3, characterized in that: The connecting block (30) has a plurality of recesses (31) evenly distributed around its circumference, and the outline of the recesses (31) is set to be arc-shaped, and the end of the vertical guide rod (24) below the recesses (31) away from the piston plate (23) is set to be spherical.

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