High protection wire cutting molybdenum wire cylinder

Abstract

The application relates to the technical field of wire cutting, and discloses a high-protection wire cutting molybdenum wire cylinder, which comprises a connecting shaft connected with a molybdenum wire unwinding motor of a wire cutting machine tool and a wire shaft connected to the outer side of the connecting shaft; further comprising: a fixed end, a side baffle, a shell and a top cover, the fixed end is fixedly connected to the top end of the connecting shaft, and the fixed end and the wire shaft are in a clamping dismounting structure; the side baffle is symmetrically and slidably arranged on the outer side of the wire shaft; the shell is arranged on the outer side of the wire shaft, and the fixed end is rotatably connected to the top of the two ends of the shell; the top cover is connected above the shell, a top groove for molybdenum wire unwinding is arranged on the top surface of the top cover, and a limiting mechanism capable of clamping the molybdenum wire is arranged above the top groove. The high-protection wire cutting molybdenum wire cylinder can stably protect, reduce the damage caused by molybdenum wire breakage, facilitate dismounting, replacement and maintenance, effectively improve the wire feeding efficiency, reduce the influence of processing, and improve the working efficiency of the wire cutting machine tool.

Description

Technical Field

[0001] This invention relates to the field of wire EDM technology, and more particularly to the field of molybdenum wire spools for wire EDM, specifically a highly protective molybdenum wire spool for wire EDM. Background Technology

[0002] Wire cutting, also known as CNC electrical discharge wire cutting, uses a moving metal wire as a tool electrode. A pulse current is passed between the metal wire and the workpiece, and the workpiece is cut by the corrosive effect of the pulse discharge.

[0003] Wire EDM machines are divided into fast wire EDM and slow wire EDM. Fast wire EDM machines generally use molybdenum wire as an electrode for cutting. The molybdenum wire spool is the core component of the wire EDM machine used for winding and transporting the molybdenum wire, and its performance directly affects the machining accuracy and efficiency.

[0004] For example, Chinese Patent CN204262534U discloses a molybdenum wire spool device, including a molybdenum wire spool body and a stator shaft with a stator. The two side walls of the molybdenum wire spool body are fixed to the stator shaft by inner and outer clamping rings. The molybdenum wire spool device also includes a support pad and a protective sleeve. One end of the support pad is fixedly installed on the stator, and the other end is connected to the molybdenum wire spool body to support it. The protective sleeve is fitted onto the end of the side wall of the molybdenum wire spool body that connects to the stator shaft, covering the inner and outer clamping rings and sealing the gap between the side wall of the molybdenum wire spool body and the stator shaft. By setting the support pad to support the molybdenum wire spool body, vibration of the molybdenum wire spool is minimized, ensuring stable operation of the molybdenum wire spool. By setting the protective sleeve to seal the gap between the molybdenum wire spool body and the stator shaft, wire breakage is effectively reduced, improving the operating time and working efficiency of the wire EDM machine.

[0005] For example, Chinese patent CN205630127U discloses a fully enclosed protective cover for a molybdenum wire cutter, including a water-blocking cover for the molybdenum wire cutter and a movable baffle mounted on the water-blocking cover. The water-blocking cover is a hexahedral structure with an open front. A strip-shaped notch for the molybdenum wire to pass through is formed on the lower side of the water-blocking cover along the length of the wire cutter. A first long strip notch for the molybdenum wire to pass through is formed on the upper side of the water-blocking cover along the length of the molybdenum wire cutter. A second long strip notch for the molybdenum wire to pass through is formed on the movable baffle along the length of the molybdenum wire cutter. Two parallel strip grooves are provided at both ends of the movable baffle. The movable baffle is movably connected to the water-blocking cover by fixing bolts inserted into the strip grooves. The second long strip notch reciprocates along the width of the first long strip notch as the movable baffle moves. This design meets the requirements for high-level molybdenum wire operation without affecting the sealing effect of the molybdenum wire cutter, effectively improving the protection of the surrounding construction environment.

[0006] However, considering the actual application of molybdenum wire tubes in wire EDM machines, current molybdenum wire tubes still have certain shortcomings, such as:

[0007] Poor protection means that when a molybdenum wire breaks during wire cutting on a wire EDM machine, the wire will spring back due to stress release, which can cause scratches on the wire spool and scattering of the wire. This can also cause deformation of the unused molybdenum wire wound on the outside of the wire spool, which not only affects the efficiency of re-wire feeding but may also lead to poor subsequent cutting operations and affect the processing quality.

[0008] The current molybdenum wire spools are not convenient to install and disassemble, making it difficult to replace them quickly. Furthermore, due to the different installation positions, the current molybdenum wire spools cannot guide the molybdenum wire, which is not conducive to horizontally guiding the molybdenum wire into the wire feeding mechanism and affects the wire feeding.

[0009] Therefore, the present invention provides a highly protective wire EDM molybdenum wire spool to solve the problems mentioned above. Summary of the Invention

[0010] The purpose of this invention is to provide a highly protective wire EDM molybdenum wire spool to solve the problems mentioned in the background art, such as poor protection of current molybdenum wire spools, inability to prevent damage to the molybdenum wire spool caused by the rebound of broken wires, low convenience, and inconvenience in disassembly and maintenance.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a highly protective wire EDM molybdenum wire spool, comprising a connecting shaft connected to the molybdenum wire feeding motor of the wire EDM machine and a wire spool connected to the outside of the connecting shaft;

[0012] Also includes:

[0013] A fixed end is fixedly connected to the top of the connecting shaft, and the fixed end and the lead screw have a snap-fit ​​and detachable structure;

[0014] Side baffles are symmetrically and slidably mounted on the outside of the lead screw;

[0015] The housing is disposed on the outside of the lead screw, and the fixed end is rotatably connected to the top of both ends of the housing;

[0016] The top cover is connected to the top of the outer shell, and the top surface of the top cover is provided with a top groove for the molybdenum wire to exit. A limiting mechanism for clamping the molybdenum wire is provided above the top groove.

[0017] Furthermore: the outer bottom of the side baffle is integrally provided with a protrusion protruding outward, the inside of the protrusion is a hollow structure, and a limit block is slidably connected inside the hollow structure. A first spring is symmetrically arranged on the bottom side of the limit block, and the bottom of the limit block is telescopically connected to the protrusion through the first spring.

[0018] Furthermore: a through groove is provided on the outer side of the middle part of the protrusion, which is connected to the hollow structure inside. An extrusion plate is slidably connected inside the through groove. The side of the extrusion plate is telescopically connected to the protrusion through a second spring. The lower surface of the top of the extrusion plate has a beveled structure.

[0019] The top of the extrusion plate corresponds to the extrusion groove in the middle of the limiting block.

[0020] Furthermore, the end of the screw shaft is integrally provided with a convex plate, and the outer side of the convex plate is recessed inward to provide a retaining groove, so that the end of the screw shaft is correspondingly engaged with the inner side of the fixed end through the convex plate.

[0021] Furthermore: the fixed end has an internal slot, and a corresponding locking block is slidably installed inside the slot, the top surface of the locking block is a beveled structure, and the end of the locking block is telescopically connected to the inside of the slot by a third spring.

[0022] Furthermore: a guide rail is symmetrically fixedly installed on the outer side of the fixed end, a slider is slidably installed on the inner side of the guide rail, a pull rope is connected to the inner side of the slider, and the end of the pull rope passes through the fixed end and is connected to the locking block.

[0023] Furthermore: a side plate is welded and fixed to the bottom side of the outer shell, and the side plate is symmetrically provided with a long strip-shaped fixing groove, and the bottom surface of the outer shell is provided with bottom grooves at equal intervals.

[0024] Furthermore, the top cover and the outer shell are connected by a hinge, and the contact surfaces of the outer shell and the top cover are provided with buckles for limiting their position.

[0025] Furthermore: the limiting mechanism includes:

[0026] A guide plate, which is fixedly installed on one side of the top surface of the top cover;

[0027] The slide is slidably connected to the outside of the guide plate, and a fixing plate that engages with the inside of the guide plate is fixed to the bottom side of the slide. The bottom end of the slide is slidably connected to the inside of the top groove through an integrally fixed connecting block.

[0028] A limiting plate is provided above a fixed plate, and the limiting plate is internally threaded with a fixing bolt that is rotatably mounted on the top surface of the fixed plate.

[0029] The inner side of the carriage is provided with a first guide wire ring, a second guide wire ring and a third guide wire ring located above the top groove in sequence from bottom to top. The first guide wire ring, the second guide wire ring and the third guide wire ring are all ring-shaped and rotatably installed on the inner side of the carriage.

[0030] Furthermore: a first roller is rotatably mounted on the left side of the middle part of the slide, a second roller is rotatably and slidably connected to the inner side of the slide on the right side of the first roller, a connecting plate is connected to the top of the second roller, an mounting plate is fixedly mounted on the outer side of the slide, a slide rod is fixedly fixed on the inner side of the mounting plate and horizontally inserted inside the connecting plate, and a fourth spring is sleeved on the outer side of the slide rod and connected between the connecting plate and the mounting plate.

[0031] Compared with the prior art, the beneficial effects of the present invention are: the high-protection wire EDM molybdenum wire spool can provide stable protection, reduce damage caused by molybdenum wire breakage, facilitate disassembly and maintenance, effectively improve wire feeding efficiency, reduce processing impact, and improve the working efficiency of wire EDM machine tools;

[0032] 1. This solution includes a fixed end, a wire shaft, and a side baffle. The fixed end and the wire shaft can be directly installed by plugging and unplugging. The side baffle can slide on the outside of the wire shaft, which facilitates the feeding of molybdenum wires or molybdenum wire materials of different lengths and makes it easy to replace and maintain.

[0033] 2. This solution includes an outer shell, a top cover, a bottom groove, and a top groove. The outer shell and top cover enclose the wire shaft, facilitating maintenance. The bottom groove and top groove not only facilitate the loading and unloading of molybdenum wire but also provide ventilation, reducing the impact of moisture and impurities.

[0034] 3. This solution includes a slide, a first guide wire ring, a second guide wire ring, and a third guide wire ring. By sliding the slide above the top cover, the position of the slide can be adjusted, thereby allowing the molybdenum wire to be threaded through the annular structure of the first guide wire ring, the second guide wire ring, and the third guide wire ring. This facilitates the guidance of the molybdenum wire, enabling it to enter the wire feeding mechanism horizontally.

[0035] 4. This design includes a first roller, a second roller, and a fourth spring. During the cutting process, the molybdenum wire is compressed, causing the second roller to slide and roll to the right while the wire is being fed, without affecting the wire feeding. When the molybdenum wire breaks, the wire feeding motor stops, and the second roller slides to the left under the elastic action of the fourth spring. This allows the second roller and the first roller to clamp the molybdenum wire, preventing the molybdenum wire from rebounding and affecting the molybdenum wire spool. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the right side structure of the present invention.

[0037] Figure 2 This is a schematic diagram of the left side structure of the present invention from the rear view;

[0038] Figure 3 This is a schematic diagram of the structure of the present invention from a bottom view;

[0039] Figure 4 This is a schematic diagram of the overall mounting structure of the lead screw of the present invention;

[0040] Figure 5 This is a schematic diagram of the overall disassembled structure of the fixed end, screw shaft and side baffle of the present invention;

[0041] Figure 6 This is a schematic diagram of the side structure of the side baffle of the present invention;

[0042] Figure 7 This is a cross-sectional view of the connection surface between the fixed end and the lead screw of the present invention;

[0043] Figure 8 This is a cross-sectional view of the extrusion plate of the present invention;

[0044] Figure 9 This is a schematic diagram of the front cross-section structure of the present invention;

[0045] Figure 10 This is a schematic diagram of the overall structure of the carriage of the present invention.

[0046] In the diagram: 1. Connecting shaft; 2. Fixed end; 3. Lead screw; 4. Side baffle; 5. Protrusion; 6. Limiting block; 7. First spring; 8. Extrusion plate; 9. Second spring; 10. Extrusion groove; 11. Protrusion plate; 12. Slot; 13. Locking block; 14. Empty slot; 15. Third spring; 16. Guide rail; 17. Slider; 18. Pull rope; 19. Outer shell; 20. Side plate; 21. Fixing groove; 22. 23. Bottom groove; 24. Top cover; 25. Hinge; 26. Buckle; 27. Top groove; 28. Guide plate; 29. ​​Slide carriage; 30. Fixing plate; 31. Limiting plate; 32. Fixing bolt; 33. Connecting block; 34. First guide wire ring; 35. Second guide wire ring; 36. Third guide wire ring; 37. First roller; 38. Second roller; 39. Connecting plate; 40. Mounting plate; 41. Slide rod; 42. Fourth spring. Detailed Implementation

[0047] 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.

[0048] Please see Figures 1-10This invention provides a technical solution: a high-protection wire cutting molybdenum wire spool, comprising a connecting shaft 1, a fixed end 2, a wire spool 3, a side baffle 4, a protrusion 5, a limiting block 6, a first spring 7, an extrusion plate 8, a second spring 9, an extrusion groove 10, a protrusion 11, a slot 12, a locking block 13, a hollow groove 14, a third spring 15, a guide rail 16, a slider 17, a pull rope 18, a shell 19, a side plate 20, a fixing groove 21, a bottom groove 22, a top cover 23, a hinge 24, a buckle 25, a top groove 26, a guide plate 27, a slide 28, a fixing plate 29, a limiting plate 30, a fixing bolt 31, a connecting block 32, a first wire guide ring 33, a second wire guide ring 34, a third wire guide ring 35, a first roller 36, a second roller 37, a connecting plate 38, a mounting plate 39, a slide rod 40, and a fourth spring 41.

[0049] Among them: such as Figure 1 , Figure 2 , Figure 4 and Figure 5 In the middle, the connecting shaft 1 is connected to the molybdenum wire feeding motor of the wire cutting machine, the fixed end 2 is fixedly connected to the top of the connecting shaft 1, and the fixed end 2 and the wire shaft 3 have a snap-fit ​​and disassembly structure, and the side baffle 4 is symmetrically slidably installed on the outside of the wire shaft 3;

[0050] In specific application scenarios, the fixed end 2 and the connecting shaft 1 are fixedly connected, and the wire shaft 3 is detachably installed by using the snap-fit ​​between the fixed end 2 and the wire shaft 3. The wire shaft 3 can take in the molybdenum wire, so as to release the molybdenum wire during wire cutting. Furthermore, the side baffle 4 is slidably installed on the outside of the wire shaft 3, and the side baffle 4 can be adjusted to allow for the use of molybdenum wires of different batches and lengths.

[0051] The above technical solution facilitates the winding and unwinding of molybdenum wire, making it suitable for wire cutting.

[0052] Among them: such as Figure 4 , Figure 5 , Figure 6 and Figure 8 In the middle, the bottom outer side of the side baffle 4 is integrally provided with a protrusion 5 protruding outward. The inside of the protrusion 5 is hollow. The inside of the hollow structure is slidably connected to a limit block 6. The bottom side of the limit block 6 is symmetrically arranged with a first spring 7. The bottom of the limit block 6 is telescopically connected to the protrusion 5 through the first spring 7. The middle outer side of the protrusion 5 is provided with a through groove that communicates with its internal hollow structure. The inside of the through groove is slidably connected to a pressing plate 8. The side of the pressing plate 8 is telescopically connected to the protrusion 5 through a second spring 9. The lower surface of the top of the pressing plate 8 is inclined. The top of the pressing plate 8 corresponds to the pressing groove 10 opened in the middle of the limit block 6.

[0053] In specific application scenarios, by pressing the extrusion plate 8 against the inside of the protrusion 5, the top of the extrusion plate 8 penetrates the protrusion 5 and inserts into the extrusion groove 10 opened on the top of the limiting block 6. Through the inclined structure of the bottom surface of the top of the extrusion plate 8, the extrusion plate 8 presses the limiting block 6 downward through the extrusion groove 10, causing the limiting block 6 to slide downward inside the protrusion 5. At this time, the top of the limiting block 6 loses its extrusion on the screw 3, thereby allowing the side baffle 4 to slide on the outside of the screw 3. After sliding to a suitable position, the extrusion plate 8 is released, causing the extrusion plate 8 to pop outward and reset under the elastic action of the second spring 9 connected to its side. This causes the extrusion plate 8 to disengage from the extrusion groove 10, causing the limiting block 6 to lose its extrusion force. Under the elastic action of the first spring 7 connected to its bottom side, the limiting block 6 automatically slides upward inside the protrusion 5, and through elastic pulling, the top of the limiting block 6 presses against the outside of the screw 3 to maintain the relative fixation between the side baffle 4 and the screw 3.

[0054] The above technical solution allows for easy operation by direct finger squeezing and facilitates quick adjustment of the position of the side baffle 4 for easy wire winding.

[0055] Among them: such as Figure 1 , Figure 4 , Figure 5 and Figure 7 In the design, a protruding plate 11 is integrally provided at the end of the lead screw 3. A groove 12 is recessed inward on the outer side of the protruding plate 11. The end of the lead screw 3 is engaged with the inner side of the fixed end 2 through the protruding plate 11. A slot 14 is provided inside the fixed end 2. A locking block 13 is slidably installed inside the slot 14 and is engaged with the groove 12. The top surface of the locking block 13 is a beveled structure. The end of the locking block 13 is telescopically connected to the inside of the slot 14 through a third spring 15. A guide rail 16 is symmetrically fixedly installed on the outer side of the fixed end 2. A slider 17 is slidably installed on the inner side of the guide rail 16. A pull rope 18 is connected to the inner side of the slider 17. The end of the pull rope 18 passes through the fixed end 2 and is connected to the locking block 13.

[0056] In specific application scenarios, when installing the lead screw 3, the end of the lead screw 3 is pressed down and engaged with the fixed end 2 from above via the convex plate 11. The convex plate 11 enters the groove opened on the end face of the fixed end 2, and the bottom end of the convex plate 11 presses against the locking block 13 set on the inner side of the fixed end 2, causing the locking block 13 to retract into the slot 14 opened inside the fixed end 2. After the convex plate 11 is inserted into the inner side of the fixed end 2, the elastic action of the third spring 15 installed inside the slot 14 causes the locking block 13 to retract into the slot 14. 3. The locking block 13 extends outward from inside the slot 14, so that it engages with the blind groove opened inside the protrusion plate 11 to maintain the fixed installation between the fixed end 2 and the screw 3. When the screw 3 needs to be replaced or maintained, the slider 17 on the outside of the fixed end 2 slides upward against the inside of the guide rail 16, so that the slider 17 pulls the locking block 13 into the slot 14 through the pull rope 18, so that the locking block 13 disengages from the protrusion plate 11, so that the screw 3 can be disengaged from the fixed end 2 for replacement or maintenance.

[0057] The above technical solution is adopted: the convex plate 11 engages with the fixed end 2, which facilitates the disassembly and maintenance of the fixed end 2 and the wire shaft 3, and facilitates the replacement and use of molybdenum wire.

[0058] Among them: such as Figure 1 , Figure 2 , Figure 3 and Figure 9 In the case, the outer shell 19 is located on the outside of the wire shaft 3, and the fixed end 2 is rotatably connected to the top of both ends of the outer shell 19. The bottom side of the outer shell 19 is welded and fixed with a side plate 20. The side of the side plate 20 is symmetrically provided with a long strip-shaped fixing groove 21. The bottom surface of the outer shell 19 is provided with a bottom groove 22 at equal intervals. The top cover 23 is connected to the top of the outer shell 19. The top cover 23 and the outer shell 19 are rotatably connected by a hinge 24. The contact surface between the outer shell 19 and the top cover 23 is provided with a buckle 25 for limiting the position. The top surface of the top cover 23 is provided with a top groove 26 for the molybdenum wire to exit.

[0059] In specific application scenarios, the fixed end 2 is rotated and installed by the outer shell 19, which facilitates the stable rotation and installation of the wire shaft 3 in the middle of the outer shell 19. The outer shell 19 is fixed and installed by the fixing groove 21 opened on the side of the side plate 20. After being fixed, the molybdenum wire can be inserted into the inner part of the outer shell 19 through the bottom groove 22 opened at its bottom, and the wire shaft 3 can be used for wire winding. At the same time, the top cover 23 is rotatably connected to the top of the outer shell 19 by the hinge 24, and is limited and fixed by the buckle 25 fixed on the side of the top cover 23. At the same time, the wire can be threaded outward through the top groove 26 opened in the middle of the top of the top cover 23 for wire feeding.

[0060] The above technical solution is adopted: the enclosure of the outer shell 19 and the top cover 23 on the outside of the wire shaft 3 facilitates stable protection, and the bottom groove 22 and the top groove 26 are used for wire feeding and unloading, which facilitates wire threading and cutting.

[0061] Among them: such as Figure 1 , Figure 2 , Figure 9 and Figure 10 In the middle, a limiting mechanism for clamping molybdenum wire is provided above the top groove 26. The limiting mechanism includes: guide plate 27, slide 28 and limiting plate 30. The guide plate 27 is fixedly installed on one side of the top surface of the top cover 23. The slide 28 is slidably connected to the outside of the guide plate 27. A fixing plate 29 that engages with the inside of the guide plate 27 is fixed to the bottom side of the slide 28. The bottom end of the slide 28 is slidably connected to the inside of the top groove 26 through an integrally fixed connecting block 32. The limiting plate 30 is located above the fixing plate 29, and a fixing bolt 31 that is rotatably installed on the top surface of the fixing plate 29 is threaded inside the limiting plate 30.

[0062] The inner side of the slide 28 is provided with a first guide wire ring 33, a second guide wire ring 34 and a third guide wire ring 35 arranged sequentially from bottom to top above the top groove 26. The first guide wire ring 33, the second guide wire ring 34 and the third guide wire ring 35 are all ring-shaped and rotatably installed on the inner side of the slide 28. A first roller 36 is rolled on the left side of the middle part of the slide 28. A second roller 37 is rolled and slidably connected to the inner side of the slide 28 on the right side of the first roller 36. A connecting plate 38 is connected to the top of the second roller 37. An installation plate 39 is fixedly installed on the outer side of the slide 28. A slide rod 40 is fixedly fixed on the inner side of the installation plate 39 and horizontally inserted inside the connecting plate 38. A fourth spring 41 is sleeved on the outer side of the slide rod 40 and connected between the connecting plate 38 and the installation plate 39.

[0063] In specific application scenarios, the sides of the carriage 28 are slidably connected to the inner side of the guide plate 27 via the fixing plate 29, and the bottom end of the carriage 28 is slidably connected to the inner side of the top groove 26 via the connecting block 32. During sliding, a limiting plate 30 is provided above the fixing plate 29. The screwing in of the fixing bolt 31, which is threaded inside the limiting plate 30, can press the limiting plate 30 down, so that the limiting plate 30 and the fixing plate 29 are clamped on the sides of the guide plate 27 to maintain the carriage 28. For stability of 8, after the carriage 28 is fixed, the molybdenum wire is sequentially passed through the first guide wire ring 33, the second guide wire ring 34, and the third guide wire ring 35 arranged from bottom to top on the inner bottom of the carriage 28. Through the rotational structure of the first guide wire ring 33, the second guide wire ring 34, and the third guide wire ring 35 inside the carriage 28, the first guide wire ring 33, the second guide wire ring 34, and the third guide wire ring 35 are aligned. The molybdenum wire is used for guiding and feeding. A first roller 36 and a second roller 37 are located inside the slide 28 between the second guide ring 34 and the third guide ring 35. The molybdenum wire passes between the first roller 36 and the second roller 37. During feeding, the rapid movement of the molybdenum wire causes it to compress the second roller 37 inside the slide. As the second roller 37 rolls with the molybdenum wire, it slides to the right, allowing it to slide inside the slide rod 40 via the connecting plate 38. When the molybdenum wire breaks, the second roller 37 loses the pulling and compressing force of the wire. Under the elastic action of the fourth spring 41, the second roller 37 and the connecting plate 38 slide in the opposite direction towards the first roller 36. This clamps and fixes the molybdenum wire between the first roller 36 and the second roller 37, preventing the wire from springing back, damaging the wire spool, or scattering the wire, thus facilitating rapid wire feeding.

[0064] By adopting the above technical solution, the wire feeding position can be adjusted by sliding the carriage 28, so that the molybdenum wire enters the wire feeding mechanism horizontally. Furthermore, the clamping of the second roller 37 and the first roller 36 can prevent damage caused by the rebound of the molybdenum wire, ensuring rapid re-feeding and reuse, thereby improving the efficiency of wire cutting.

[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, and 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] 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 highly protective wire EDM molybdenum wire spool, comprising a connecting shaft (1) connected to a molybdenum wire feeding motor of a wire EDM machine and a wire spool (3) connected to the outside of the connecting shaft (1); Its features are, Also includes: Fixed end (2), the fixed end (2) is fixedly connected to the top end of the connecting shaft (1), and the fixed end (2) and the screw shaft (3) have a snap-fit ​​and disassembly structure; Side baffle (4), which is symmetrically slidably mounted on the outside of the wire shaft (3); The outer casing (19) is disposed on the outside of the spindle (3), and the fixed end (2) is rotatably connected to the top of both ends of the outer casing (19); Top cover (23), the top cover (23) is connected above the outer shell (19), and the top surface of the top cover (23) is provided with a top groove (26) for the molybdenum wire to exit, and a limiting mechanism for clamping the molybdenum wire is provided above the top groove (26); The limiting mechanism includes a guide plate (27), a slide (28), and a limiting plate (30). The guide plate (27) is fixedly installed on one side of the top surface of the top cover (23). The slide (28) is slidably connected to the outside of the guide plate (27). A fixing plate (29) is fixed to the bottom side of the slide (28) and engages with the inside of the guide plate (27). The bottom end of the slide (28) is slidably connected to the inside of the top groove (26) through an integrally fixed connecting block (32). The limiting plate (30) is provided with... Above the fixed plate (29), and the internal thread of the limiting plate (30) is connected to a fixing bolt (31) that is rotatably installed on the top surface of the fixed plate (29), the inner side of the slide (28) is provided with a first guide wire ring (33), a second guide wire ring (34) and a third guide wire ring (35) located above the top groove (26) in sequence from bottom to top. The first guide wire ring (33), the second guide wire ring (34) and the third guide wire ring (35) are all ring-shaped and rotatably installed on the inner side of the slide (28); A first roller (36) is rotatably mounted on the left side of the middle part of the slide (28). A second roller (37) is rotatably and slidably connected to the inside of the slide (28) on the right side of the first roller (36). A connecting plate (38) is connected to the top of the second roller (37). An mounting plate (39) is fixedly mounted on the outer side of the slide (28). A slide rod (40) is fixedly mounted on the inner side of the mounting plate (39) and horizontally inserted inside the connecting plate (38). A fourth spring (41) is sleeved on the outer side of the slide rod (40) and connected between the connecting plate (38) and the mounting plate (39).

2. The high-protection wire cutting molybdenum wire spool according to claim 1, characterized in that: The side baffle (4) has an integrally protruding protrusion (5) at its outer bottom. The protrusion (5) has a hollow structure inside. A limiting block (6) is slidably connected inside the hollow structure. A first spring (7) is symmetrically arranged on the bottom side of the limiting block (6), and the bottom of the limiting block (6) is telescopically connected to the protrusion (5) through the first spring (7).

3. A high-protection wire cutting molybdenum wire spool according to claim 2, characterized in that: The outer side of the middle part of the protrusion (5) is provided with a through groove that communicates with its internal hollow structure. An extrusion plate (8) is slidably connected inside the through groove. The side of the extrusion plate (8) is telescopically connected to the protrusion (5) through a second spring (9). The lower surface of the top of the extrusion plate (8) is a sloping structure. The top of the extrusion plate (8) corresponds to the extrusion groove (10) opened in the middle of the limiting block (6).

4. The high-protection wire cutting molybdenum wire spool according to claim 1, characterized in that: The end of the screw shaft (3) is integrally provided with a protrusion plate (11), and the outer side of the protrusion plate (11) is recessed inward to provide a groove (12). The end of the screw shaft (3) is engaged with the inner side of the fixed end (2) through the protrusion plate (11).

5. A high-protection wire cutting molybdenum wire spool according to claim 4, characterized in that: The fixed end (2) has an open slot (14) inside. A corresponding locking block (13) is slidably installed inside the slot (14) and engages with the locking slot (12). The top surface of the locking block (13) is a sloping structure. The end of the locking block (13) is telescopically connected to the inside of the slot (14) by a third spring (15).

6. A high-protection wire cutting molybdenum wire spool according to claim 5, characterized in that: A guide rail (16) is symmetrically fixed on the outer side of the fixed end (2), and a slider (17) is slidably installed on the inner side of the guide rail (16). A pull rope (18) is connected to the inner side of the slider (17), and the end of the pull rope (18) passes through the fixed end (2) and is connected to the locking block (13).

7. A high-protection wire cutting molybdenum wire spool according to claim 1, characterized in that: The bottom side of the outer shell (19) is welded and fixed with a side plate (20), and the side of the side plate (20) is symmetrically provided with a long strip-shaped fixing groove (21), and the bottom surface of the outer shell (19) is provided with a bottom groove (22) at equal intervals.

8. A high-protection wire cutting molybdenum wire spool according to claim 1, characterized in that: The top cover (23) and the outer shell (19) are rotatably connected by a hinge (24), and the contact surface between the outer shell (19) and the top cover (23) is provided with a buckle (25) for limiting the position.

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