Linear cutting molybdenum wire cutting and recycling device

Abstract

The invention relates to the technical field of electric spark wire cutting machining auxiliary equipment, and discloses a wire cutting molybdenum wire cutting and recycling device which comprises a working table, a wire cylinder, a wire guide frame and a coordinate working table are sequentially arranged at the top end of the working table, and a cutting and recycling mechanism is fixedly connected to the side face of the wire guide frame. The cutting and recycling mechanism comprises a first fixing frame, a first wire wheel, a cutting assembly, a second wire wheel, an elastic wheel, a transmission assembly and a shifting rod assembly, the elastic wheel detects the molybdenum wire breakage condition and converts the molybdenum wire breakage condition into simple mechanical action, and the mechanical action is transmitted to the first wire wheel and the second wire wheel through the transmission assembly and the shifting rod assembly. The first wire wheel and the second wire wheel are triggered to press and fix the molybdenum wire, then the cutting assembly is triggered to cut the molybdenum wire, and finally the second wire wheel is used for winding and recycling the waste molybdenum wire, so that the broken waste molybdenum wire is prevented from scattering in a machine tool to cause short circuit or mechanical faults, the waste molybdenum wire in the machining process is efficiently treated, and the treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for wire electrical discharge machining, and more particularly to a wire-cut molybdenum wire cutting and recycling device. Background Art

[0002] Wire electrical discharge machining is a processing method that uses the electro-erosion effect of pulsed discharge between the wire electrode as the negative electrode and the metal material workpiece as the whole machine to process the workpiece. It is mainly used for the manufacture of various molds, electrodes, and precision parts, and the processing of complex cavities and curved surfaces of various conductors such as cemented carbide, hardened steel, graphite, aluminum alloy, structural steel, stainless steel, titanium alloy, and diamond. The wire-cut molybdenum wire cutting and recycling device is an auxiliary equipment for wire electrical discharge machining tools, aiming to efficiently process the waste molybdenum wire during the processing. In the processing process, various situations can cause the molybdenum wire to break accidentally. For example, too strong local discharge will burn the molybdenum wire; the workpiece material contains hard impurities, resulting in intense friction during cutting; or insufficient or contaminated coolant, leading to poor chip evacuation and concentrated arc discharge.

[0003] Deficiencies of the prior art: When the molybdenum wire breaks accidentally during the processing, the waste wire needs to be cleaned up. When the remaining part of the molybdenum wire is still relatively new and has little loss, it is not necessary to recycle all the molybdenum wire. However, the existing technology for processing and recycling waste molybdenum wire usually stops the machine tool operation, and then uses scissors or related tools to cut the broken molybdenum wire from both ends of the broken area, and then extracts the molybdenum wire for cutting and recycling, with low processing efficiency. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wire-cut molybdenum wire cutting and recycling device to solve the problems existing in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A wire-cut molybdenum wire cutting and recycling device includes a workbench surface. A wire reel, a wire guide frame, and a coordinate workbench are sequentially arranged on the top of the workbench surface from left to right. Among them, a first guide wheel, a guide plate, a cutting and recycling mechanism, and a second guide wheel are sequentially and fixedly connected to the side surface of the wire guide frame. The molybdenum wire can be pulled out from the wire reel, bypass the wire groove in the middle of the coordinate workbench and the second guide wheel above the wire groove, and then pass through the cutting and recycling mechanism, the guide plate, and the first guide wheel in sequence and return to the wire reel for fixing to complete the wire threading. The cutting and recycling mechanism includes a first fixing frame fixedly connected to the side surface of the wire guide frame and a first wire wheel, a cutting assembly, a second wire wheel, an elastic wheel, a transmission assembly, and a lever assembly arranged inside the first fixing frame. When threading the wire, the molybdenum wire passes under the elastic wheel, and then passes above the second wire wheel, inside the cutting assembly, and above the cutting assembly. The second wire wheel includes a power motor, a first fixed sleeve fixedly connected to the motor shaft of the power motor, and a second movable wheel fixedly connected to the circumferential side of the first fixed sleeve. One end of the top of the first fixed sleeve is fixedly connected with a second spring, and the top end of the second spring is fixedly connected with a pressing and cutting component. An annular wire groove two and a pressing wire groove two perpendicular to the wire groove two are formed on the outer peripheral surface of the second movable wheel.

[0006] Further, the first fixing frame is fixedly connected to the side surface of the wire guiding frame through an angle code arranged at the bottom end. A fixing hole is formed on the side surface of the first fixing frame, and the inside of the fixing hole is fixedly connected to the side surface of the motor. One end of the motor shaft of the motor is movably connected to the inner wall of the first fixing frame.

[0007] Further, a fixing bracket is fixedly connected to the top end of the rightmost side of the first fixing frame. Long rods are symmetrically arranged at the top end of the fixing bracket. The bottom end of the long rod is fixedly connected with a short shaft. A wire passing wheel is movably connected to the middle of the short shaft. A wire groove three is formed on the outer edge of the wire passing wheel. The long rod penetrates through the fixing bracket, and its top end is fixedly connected with a top plate. A third spring is sleeved on the part of the long rod from the fixing bracket to the top plate. In addition, one side of the top plate is fixedly connected with a first toothed rod through a connecting plate.

[0008] Further, a gear is meshed with the side surface of the first toothed rod. A second round rod is movably connected to the middle of the gear. The second round rod is fixedly connected to the top end of the first fixing frame through a fixing column fixedly connected to one end.

[0009] Further, a second toothed rod is meshed with the edge of the gear. One side of the bottom end of the second toothed rod is fixedly connected with a linkage rod. Two sub-rods are arranged at intervals at the bottom end of the linkage rod. One side of the bottom end of the sub-rod is fixedly connected with a second fixed sleeve. A connecting rod is fixedly connected to the inside of the second fixed sleeve. One end of two connecting rods is fixedly connected with a clamping rod. In addition, the side surface of the sub-rod is movably connected to a fixing plate. A fourth spring is fixedly connected to the top end of the fixing plate. The top end of the fourth spring is fixedly connected to the bottom end of the linkage rod. The fixing plate is fixedly connected to the top end of the first fixing frame through a vertical plate fixedly connected to one end.

[0010] Further, a limiting rod is fixedly connected to the top end of the fixing plate. The limiting rod includes a short column fixedly connected to the top end of the fixing plate and an elastic rod fixedly connected to one side of the short column. The elastic rod is located between two fixing plates.

[0011] Furthermore, the pressing and cutting assembly includes a first support rod fixedly connected to the top end of the first fixed sleeve and a round shaft fixedly connected to the top end of the first support rod. A first rotating sleeve and a second rotating sleeve are movably connected to the side surface of the round shaft. A cutting plate is arranged on the outer edge of the first rotating sleeve along the tangent direction. A cutting edge is arranged on the side surface of the cutting plate. In addition, a second wire pressing rod is fixedly connected to the side surface of the second rotating sleeve along the axial direction. One end of the second wire pressing rod is enlarged and provided with a clamping groove, which can be engaged with the clamping rod. A second pressing block is arranged at the bottom end of the second wire pressing rod. A cutting groove is opened at the top end of the second wire pressing rod. The second wire pressing rod and the second pressing block are in conformity with the shape of the second wire pressing groove.

[0012] Furthermore, the elastic rod of the limiting rod is in contact connection with the cutting plate in the vertical state.

[0013] Furthermore, the cutting assembly includes a tangent plate fixedly connected to the first fixed frame. A tangent groove is opened at the top end of the tangent plate. A second fixed frame is fixedly connected to one side of the tangent plate. A hydraulic cylinder and a telescopic rod are fixedly connected to the inner top end of the second fixed frame. A tool holder is fixedly connected to the bottom end of the telescopic rod. A cutting tool is fixedly connected to the bottom end of the tool holder. The cutting tool is located above the tangent groove, and the plane where its cutting edge is located is in the same plane as the long axis of the tangent groove.

[0014] Furthermore, a first contact point is fixedly connected to one side of the inner top end of the second fixed frame. A second contact point is arranged below the first contact point. The second contact point is arranged at the top end of the second fixed sleeve.

[0015] Furthermore, the first wire wheel includes a first round rod fixedly connected to the inner wall of the first fixed frame. A movable sleeve is movably connected to the side surface of the first round rod. A first movable wheel is fixedly connected to the periphery of the movable sleeve. A first wire passing groove and a first wire pressing groove are opened on the side surface of the first movable wheel. The first wire passing groove is opened along the outer diameter of the first movable wheel. The direction of the first wire pressing groove is perpendicular to that of the first wire passing groove. A first spring is fixedly connected to the periphery of the movable sleeve. The top end of the first spring is fixedly connected to a first wire pressing rod. A first pressing block is arranged in the middle of the bottom end of the first wire pressing rod. The first wire pressing rod and the first pressing block are in conformity with the shape of the first wire pressing groove. One end of the first wire pressing rod is enlarged and provided with a clamping groove, which can be engaged with the clamping rod. The other end of the first wire pressing rod is movably connected to a fixed support rod. The bottom end of the fixed support rod is fixedly connected to the periphery of the movable sleeve. The fixed support rod and the first spring are arranged on both sides of the first movable wheel.

[0016] The technical effects and advantages of the present invention: 1. The present invention is provided with a cutting and recycling mechanism, including a fixing bracket I fixedly connected to the side of a lead frame, and a wire wheel I, a cutting assembly, a wire wheel II, an elastic wheel, a transmission assembly, and a lever assembly arranged inside the fixing bracket I. The elastic wheel detects the breakage of the molybdenum wire and converts it into a simple mechanical action. The mechanical action is transmitted to the wire wheel I and the wire wheel II through the transmission assembly and the lever assembly, triggering them to perform the action of pressing and fixing the molybdenum wire. Subsequently, the cutting assembly is triggered to cut the molybdenum wire. Finally, the wire wheel II is used to complete the winding and recycling of the waste molybdenum wire, preventing the broken waste molybdenum wire from scattering inside the machine tool and causing short circuits or mechanical failures, which is beneficial to efficiently processing the waste molybdenum wire during the processing and improving the processing efficiency.

[0017] 2. The present invention is provided with a wire wheel II, including a power motor, a fixing sleeve I fixedly connected to the motor shaft of the power motor, and a movable wheel II fixedly connected to the circumferential side of the fixing sleeve I. One end of the top of the fixing sleeve I is fixedly connected with a spring II, and the top end of the spring II is fixedly connected with a pressing and cutting assembly. The power motor is driven to use the movable wheel II to achieve winding, and the pressing and cutting assembly is used to achieve the pressing, cutting, and recycling of the molybdenum wire. The present invention integrates the pressing, winding, and recycling of the molybdenum wire on the wire wheel II, which is beneficial to further improving the processing efficiency.

[0018] 3. The present invention is provided with an elastic wheel. Under normal conditions, due to the tension of the molybdenum wire, the wire passing wheel of the elastic wheel moves upward to stretch the spring III. When the molybdenum wire breaks, the contraction force of the spring III causes the rack I to move downward, and through the lever assembly, the pressing actions of the wire wheel I and the wire wheel II are triggered, effectively fixing the broken molybdenum wire in a timely manner, which is beneficial to improving the reaction efficiency of the corresponding components after the molybdenum wire breaks and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the fixing bracket I of the present invention; Figure 3 is the structural schematic diagram of the cutting and recycling mechanism of the present invention; Figure 4 is the packaging structural schematic diagram of the cutting and recycling mechanism of the present invention; Figure 5 is the structural schematic diagram of the elastic wheel of the present invention; Figure 6 is the structural schematic diagram of the transmission assembly and the lever assembly of the present invention; Figure 7 is the partial structural schematic diagram of the transmission assembly of the present invention; Figure 8 is the structural schematic diagram of the wire wheel II of the present invention; Figure 9 is the structural schematic diagram of the pressing and cutting assembly of the present invention; Figure 10 Schematic diagram of the second wire reel of the present invention in the winding state; Figure 11 Schematic diagram of the structure of the cutting component of the present invention; Figure 12 Schematic diagram of the structure of the first wire reel of the present invention.

[0020] Reference numerals are: 1, workbench surface; 2, wire reel; 3, wire guide; 301, first guide wheel; 302, guide plate; 303, second guide wheel; 4, coordinate workbench; 401, wire groove; 5, cutting and recycling mechanism; 501, first fixing frame; 5011, fixing hole; 5012, angle code; 5013, vertical plate; 502, first wire reel; 5021, first round rod; 5022, first movable wheel; 5023, first wire passing groove; 5024, first wire pressing groove; 5025, movable sleeve; 5026, first spring; 5027, first wire pressing rod; 5028, first pressing block; 5029, fixed support rod; 503, cutting component; 5031, tangent plate; 5032, tangent groove; 5033, second fixing frame; 5034, hydraulic cylinder; 5035, telescopic rod; 5036, tool holder; 5037, cutting tool; 5038, first contact point; 5039, second contact point; 504, second wire reel; 5041, power motor; 5042, second movable wheel; 5043, first fixed sleeve; 5044, second spring; 5045, second wire passing groove; 5046, second wire pressing groove; 505, elastic wheel; 5051, fixed support; 5052, long rod; 5053, short shaft; 5054, wire passing wheel; 5055, third wire passing groove; 5056, top plate; 5057, third spring; 5058, connecting plate; 5059, first rack; 506, transmission component; 5061, fixed column; 5062, gear; 5063, second round rod; 507, lever component; 5071, second rack; 5072, linkage rod; 5073, branch rod; 5074, second fixed sleeve; 5075, connecting rod; 5076, clamping rod; 5077, fixing plate; 5078, fourth spring; 5079, limiting rod; 508, pressing and cutting component; 5081, first support rod; 5082, round shaft; 5083, first rotating sleeve; 5084, cutting plate; 5085, cutting edge; 5086, second rotating sleeve; 5087, second wire pressing rod; 5088, second pressing block; 5089, cutting groove. Detailed implementation manners

[0021] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of the respective structures described in the following embodiments are merely examples, and a wire cutting molybdenum wire cutting and recycling device related to the present invention is not limited to the respective structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] Referring to Figure 1 、 Figure 3 and Figure 8 , the present invention provides a wire cutting molybdenum wire cutting and recycling device, which includes a workbench surface 1. A wire drum 2, a wire guide frame 3 and a coordinate workbench 4 are sequentially arranged on the top of the workbench surface 1 from left to right. Among them, a first guide wheel 301, a guide plate 302, a cutting and recycling mechanism 5 and a second guide wheel 303 are sequentially and fixedly connected to the side surface of the wire guide frame 3. The molybdenum wire can be drawn out from the wire drum 2, bypass the wire groove 401 in the middle of the coordinate workbench 4 and the second guide wheel 303 above the wire groove 401, and then pass through the cutting and recycling mechanism 5, the guide plate 302 and the first guide wheel 301 in sequence and return to the wire drum 2 to complete threading. The cutting and recycling mechanism 5 includes a first fixed frame 501 fixedly connected to the side surface of the wire guide frame 3 and a first wire wheel 502, a cutting assembly 503, a second wire wheel 504, an elastic wheel 505, a transmission assembly 506 and a lever assembly 507 arranged inside the first fixed frame 501. When threading, the molybdenum wire passes below the elastic wheel 505, and then passes above the second wire wheel 504, inside the cutting assembly 503 and above the cutting assembly 503; The second wire wheel 504 includes a power motor 5041, a first fixed sleeve 5043 fixedly connected to the motor shaft of the power motor 5041 and a second movable wheel 5042 fixedly connected to the periphery of the first fixed sleeve 5043. One end of the top of the first fixed sleeve 5043 is fixedly connected with a second spring 5044, and the top end of the second spring 5044 is fixedly connected with a pressing and cutting assembly 508. An annular wire passing groove 5045 and a wire pressing groove 5046 perpendicular to the wire passing groove 5045 are formed on the outer peripheral surface of the second movable wheel 5042.

[0023] The molybdenum wire passes through the wire passing groove 5045 on the periphery of the second movable wheel 5042. When the workpiece cutting area (the area where the molybdenum wire is located between the second guide wheel 303 and the wire groove 401) breaks, the pressing and cutting assembly 508 quickly presses the molybdenum wire on the broken side. After the cutting assembly 503 cuts it, the power motor 5041 drives the motor shaft to rotate, driving the first fixed sleeve 5043 and the second movable wheel 5042 to rotate for a winding action. After the winding is completed, the pressing and cutting assembly 508 is used to cut and recycle the waste molybdenum wire.

[0024] Referring to Figure 2 , the first fixed frame 501 is fixedly connected to the side surface of the wire guide frame 3 through an angle code 5012 arranged at the bottom end. A fixing hole 5011 is formed on the side surface of the first fixed frame 501, and the inside of the fixing hole 5011 is fixedly connected to the side surface of the motor 5041. One end of the motor shaft of the motor 5041 is movably connected to the inner wall of the first fixed frame 501.

[0025] Referring to Figures 3 to 5, at the rightmost top end of the first fixing bracket 501, there is a fixed support 5051 fixedly connected. At the top of the fixed support 5051, long rods 5052 are symmetrically arranged. At the bottom end of the long rod 5052, there is a short shaft 5053 fixedly connected. In the middle of the short shaft 5053, a wire passing wheel 5054 is movably connected. On the outer edge of the wire passing wheel 5054, there is a wire passing groove three 5055. The long rod 5052 passes through the fixed support 5051, and at its top end, there is a top plate 5056 fixedly connected. And on the part of the long rod 5052 from the fixed support 5051 to the top plate 5056, there is a third spring 5057 sleeved. The bottom end of the third spring 5057 is fixedly connected to the top end of the fixed support 5051, and its top end is fixedly connected to the bottom end of the top plate 5056. Additionally, on one side of the top plate 5056, there is a first toothed rod 5059 fixedly connected through a connecting plate 5058.

[0026] After threading the molybdenum wire, the molybdenum wire passes through below the wire passing wheel 5054 and fits into the wire passing groove three 5055 opened on its outer edge. After the molybdenum wire is tightened, it will give an upward force to the wire passing wheel 5054, causing the long rod 5052 to move upward relative to the fixed support 5051 and deforming the third spring 5057 to produce tension. At the same time, the top plate 5056 and the connecting plate 5058 will drive the first toothed rod 5059 upward. When the wire passing wheel 5054 loses the upward force, the third spring 5057 will recover its deformation and give a downward force to the top plate 5056 and the connecting plate 5058, causing the first toothed rod 5059 to move downward.

[0027] Refer to Figure 6 and Figure 7 , on the side of the first toothed rod 5059, there is a gear 5062 meshed. In the middle of the gear 5062, there is a second round rod 5063 movably connected. The second round rod 5063 is fixedly connected to the top end of the first fixing bracket 501 through a fixing column 5061 fixedly connected at one end.

[0028] Among them, on the edge of the gear 5062, there is a second toothed rod 5071 meshed. At one side of the bottom end of the second toothed rod 5071, there is a linkage rod 5072 fixedly connected. At the bottom end of the linkage rod 5072, there are two sub - rods 5073 arranged at intervals. At one side of the bottom end of the sub - rod 5073, there is a second fixing sleeve 5074 fixedly connected. Inside the second fixing sleeve 5074, there is a connecting rod 5075 fixedly connected. At one end of two of the connecting rods 5075, there is a clamping rod 5076 fixedly connected. Additionally, on the side of the sub - rod 5073, there is a fixing plate 5077 movably connected. At the top end of the fixing plate 5077, there is a fourth spring 5078 fixedly connected. The top end of the fourth spring 5078 is fixedly connected to the bottom end of the linkage rod 5072. The fixing plate 5077 is fixedly connected to the top end of the first fixing bracket 501 through a vertical plate 5013 fixedly connected at one end.

[0029] When the first rack 5059 moves downward, through the transmission of the gear 5062, the second rack 5071 will move upward, and drive the two sub - rods 5073 and the clamping rod 5076 fixedly connected thereto upward through the linkage rod 5072. During this process, the fourth spring 5078 releases the initial compressed state and releases the elastic force, enabling the linkage rod 5072 to be lifted more easily. In addition, a vertical slot is provided at the end of the fixing plate 5077 for fixing the sub - rod 5073 and enabling the sub - rod 5073 to move only up and down; on the contrary, when the first rack 5059 moves upward, the clamping rod 5076 moves downward.

[0030] Among them, a limiting rod 5079 is fixedly connected to the top of the fixing plate 5077. The limiting rod 5079 includes a short column fixedly connected to the top of the fixing plate 5077 and an elastic rod fixedly connected to one side of the short column. The elastic rod is located between the two fixing plates 5077.

[0031] Refer to Figure 8 and Figure 9 As shown in FIGS.

[0032] The cutting plate 5084 is usually in a vertical state, and the limiting rod 5079 assists it to maintain the vertical position (refer to Figure 3 ); the second wire - pressing rod 5087 is usually in an inclined state. In this state, the second spring 5044 is in a stretched state. At this time, the second wire - pressing rod 5087 forms an angle of 40° with the horizontal plane where the first fixing sleeve 5043 is located, and the end slot thereof is engaged with the clamping rod 5076.

[0033] When an abnormal state (indicating that the molybdenum wire is broken) occurs, the clamping rod 5076 moves upward and separates from the second wire - pressing rod 5087. The second wire - pressing rod 5087 quickly moves downward under the action of the contraction force of the second spring 5044 and engages with the second wire - pressing groove 5046, thereby pressing the molybdenum wire on one side of the workpiece cutting area.

[0034] Refer to Figure 11, the cutting assembly 503 includes a tangent plate 5031 fixedly connected to the first fixing frame 501. A tangent groove 5032 is formed at the top end of the tangent plate 5031. One side of the tangent plate 5031 is fixedly connected to a second fixing frame 5033. A hydraulic cylinder 5034 and a telescopic rod 5035 are fixedly connected to the inner top end of the second fixing frame 5033. A tool holder 5036 is fixedly connected to the bottom end of the telescopic rod 5035. A cutting tool 5037 is fixedly connected to the bottom end of the tool holder 5036. The cutting tool 5037 is located above the tangent groove 5032, and the plane where its cutting edge is located is in the same plane as the long axis of the tangent groove 5032.

[0035] The hydraulic cylinder 5034 controls the up and down movement of the cutting tool 5037 by driving the telescopic rod 5035 to move up and down. Under normal conditions, the tool holder 5036 and the cutting tool 5037 hover above the tangent groove 5032.

[0036] One side of the inner top end of the second fixing frame 5033 is fixedly connected with a first contact 5038. A second contact 5039 is arranged below the first contact 5038. The second contact 5039 is arranged at the top end of the second fixing sleeve 5074.

[0037] When the molybdenum wire breaks, it triggers the upward movement of the second fixing sleeve 5074. The second contact 5039 moves upward to connect with the first contact 5038. The hydraulic cylinder 5034 starts, driving the telescopic rod 5035 downward, so that the cutting tool 5037 cuts the molybdenum wire downward. The time to trigger the second fixing sleeve 5074 is slightly later than the time to trigger the second pressing wire rod 5087.

[0038] Refer to Figure 12 , the first wire wheel 502 includes a first round rod 5021 fixedly connected to the inner wall of the first fixing frame 501. A movable sleeve 5025 is movably connected to the side of the first round rod 5021. A first movable wheel 5022 is fixedly connected to the periphery of the movable sleeve 5025. A wire passing groove 5023 and a wire pressing groove 5024 are formed on the side of the first movable wheel 5022. The wire passing groove 5023 is formed along the outer diameter of the first movable wheel 5022. The direction of the wire pressing groove 5024 is perpendicular to that of the wire passing groove 5023. A first spring 5026 is fixedly connected to the periphery of the movable sleeve 5025. The top end of the first spring 5026 is fixedly connected to a first wire pressing rod 5027. A first pressing block 5028 is arranged in the middle of the bottom end of the first wire pressing rod 5027. The first wire pressing rod 5027 and the first pressing block 5028 fit the shape of the wire pressing groove 5024. One end of the first wire pressing rod 5027 bulges and is provided with a clamping groove, which can be clamped with the clamping rod 5076. The other end of the first wire pressing rod 5027 is movably connected to a fixed support rod 5029. The bottom end of the fixed support rod 5029 is fixedly connected to the periphery of the movable sleeve 5025. The fixed support rod 5029 and the first spring 5026 are arranged on both sides of the first movable wheel 5022.

[0039] The coaxial pulley II 504 and the wire pressing rod I 5027 form an angle of 40° with the horizontal plane where the movable sleeve 5025 is located under normal conditions, and the end slot is engaged with the clamping rod 5076. After the molybdenum wire breaks, the clamping rod 5076 moves upward and separates from the wire pressing rod I 5027. Under the action of the contraction force of the spring I 5026, the wire pressing rod I 5027 quickly moves downward and engages with the wire pressing groove I 5024 to press the molybdenum wire tightly.

[0040] The working principle of the present invention: The working principle of the elastic pulley 505 and the lever assembly 507 after the molybdenum wire breaks: After the molybdenum wire breaks, the wire passing pulley 5054 loses the upward force, moves downward under the action of its own gravity and the contraction force of the spring III 5057, and drives the rack I 5059 to move downward, causing the gear 5062 to rotate clockwise and then driving the rack II 5071 to move upward. With the assistance of the restoring force of the spring IV 5078, the upward movement of the rack II 5071 can drive the separating rod 5073, the fixed sleeve II 5074, the connecting rod 5075 and the clamping rod 5076 to move upward.

[0041] The working principle of the pressing action of the cutting and recycling mechanism 5 after the molybdenum wire breaks: The clamping rod 5076 moves upward and separates from the wire pressing rod II 5087 and the wire pressing rod I 5027 at the same time. Under the action of the contraction forces of the spring II 5044 and the spring I 5026, they move downward at the same time and engage with the wire pressing groove II 5046 and the wire pressing groove I 5024 respectively, pressing and fixing the molybdenum wire from both sides of the cutting assembly 503. On one side of the coaxial pulley II 504 is the waste molybdenum wire broken on the workpiece cutting area side, and on one side of the coaxial pulley I 502 is the molybdenum wire that can be reused.

[0042] The working principle of the cutting action of the cutting and recycling mechanism 5 after the molybdenum wire breaks: The fixed sleeve II 5074 moves upward, causing the contact point II 5039 at its top to contact the contact point I 5038 upward, and then triggering the hydraulic cylinder 5034 to push the telescopic rod 5035 downward. The telescopic rod 5035 drives the tool holder 5036 at its bottom to move downward, pressing the molybdenum wire between the cutting tool 5037 and the cutting groove 5032 and cutting it off.

[0043] The working principle of the recycling action of the cutting and recycling mechanism 5 after the molybdenum wire breaks: After the molybdenum wire is cut by the cutting assembly 503, the wire pressing rod II 5087 engages with the wire pressing groove II 5046 and fixes one end of the waste molybdenum wire broken on the workpiece cutting area side. At this time, the power motor 5041 rotates through the drive motor shaft, driving the movable pulley II 5042 to rotate, and then winding up the waste molybdenum wire (as Figure 10 ). After the winding is completed, manually press down the cutting plate 5084, and use the cutting edge 5085 to cut the molybdenum wire between the cutting plate 5084 and the wire pressing rod II 5087, and then the waste molybdenum wire can be removed for recycling.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire cutting molybdenum wire cutting and recovery device, comprising a work surface (1), characterized in that: The top of the worktable (1) is provided with a wire drum (2), a wire frame (3) and a coordinate worktable (4) in sequence from left to right, wherein the side of the wire frame (3) is fixedly connected with a guide wheel 1 (301), a guide plate (302), a cutting and recovery mechanism (5) and a guide wheel 2 (303) in sequence, and the molybdenum wire can be pulled out from the wire drum (2), bypass the wire groove (401) located in the middle of the coordinate worktable (4) and the guide wheel 2 (303) above the wire groove (401), and then pass through the cutting and recovery mechanism (5), the guide plate (302) and the guide wheel 1 (301) in sequence. Returning to the wire drum (2) to complete wire feeding, the cutting and recovery mechanism (5) comprises a fixing frame (501) fixedly connected to the side of the wire frame (3) and a wire wheel (502), a cutting assembly (503), a wire wheel (504), an elastic wheel (505), a transmission assembly (506) and a lever assembly (507) arranged inside the fixing frame (501). When wire feeding, the molybdenum wire is wound around the bottom of the elastic wheel (505), and then passes through the top of the wire wheel (504), the inside of the cutting assembly (503) and the top of the cutting assembly (503); The wire wheel 2 (504) comprises a power motor (5041), a fixed sleeve 1 (5043) fixedly connected to the motor shaft of the power motor (5041), and a movable wheel 2 (5042) fixedly connected to the peripheral side of the fixed sleeve 1 (5043), wherein a spring 2 (5044) is fixedly connected to one end of the top of the fixed sleeve 1 (5043), a pressing and cutting assembly (508) is fixedly connected to the top of the spring 2 (5044), and an annular wire groove 2 (5045) and a wire pressing groove 2 (5046) perpendicular to the wire groove 2 (5045) are provided on the outer peripheral surface of the movable wheel 2 (5042).

2. A wire-cut molybdenum wire cutting and recovery device according to claim 1, characterized in that: The fixing frame 1 (501) is fixedly connected to the side of the lead frame (3) via an angle code (5012) provided at the bottom, and a fixing hole (5011) is provided on the side of the fixing frame 1 (501), and the interior of the fixing hole (5011) is fixedly connected to the side of the power motor (5041), wherein one end of the motor shaft of the power motor (5041) is movably connected to the inner wall of the fixing frame 1 (501).

3. A wire-cut molybdenum wire cutting and recovery device according to claim 2, characterized in that: The top rightmost end of the fixing frame 1 (501) is fixedly connected to a fixing bracket (5051), the top end of the fixing bracket (5051) is symmetrically provided with a long rod (5052), the bottom end of the long rod (5052) is fixedly connected to a short shaft (5053), the middle part of the short shaft (5053) is movably connected to a wire passing wheel (5054), the outer edge of the wire passing wheel (5054) is provided with a wire passing groove 3 (5055), the long rod (5052) passes through the fixing bracket (5051), the top end of the long rod (5052) is fixedly connected to a top plate (5056), and a spring 3 (5057) is sleeved on the part of the long rod (5052) from the fixing bracket (5051) to the top plate (5056), and one side of the top plate (5056) is fixedly connected to a gear rod 1 (5059) via a connecting plate (5058).

4. A wire-cut molybdenum wire cutting and recovery device according to claim 3, characterized in that: The side of the gear rod 1 (5059) is meshed with a gear (5062), and the middle of the gear (5062) is movably connected to a round rod 2 (5063), and the round rod 2 (5063) is fixedly connected to the top of the fixing frame 1 (501) via a fixing column (5061) fixedly connected at one end.

5. The wire-cut molybdenum wire cutting and recovery device according to claim 4, characterized in that: The edge of the gear (5062) is meshed with a second gear rod (5071), one side of the bottom end of the second gear rod (5071) is fixedly connected to a connecting rod (5072), two branch rods (5073) are arranged at intervals at the bottom end of the connecting rod (5072), one side of the bottom end of the branch rod (5073) is fixedly connected to a second fixing sleeve (5074), and the interior of the second fixing sleeve (5074) is fixedly connected to a connecting rod (5075), wherein the two connecting rods (5075) are fixedly connected to each other. One end of the connecting rod (5075) is fixedly connected to a clamping rod (5076), and the side of the branch rod (5073) is movably connected to a fixing plate (5077), the top of the fixing plate (5077) is fixedly connected to a spring four (5078), the top of the spring four (5078) is fixedly connected to the bottom end of the connecting rod (5072), and the fixing plate (5077) is fixedly connected to the top of the fixing frame one (501) through a vertical plate (5013) fixedly connected at one end.

6. A wire-cut molybdenum wire cutting and recovery device according to claim 5, characterized in that: The top end of the fixed plate (5077) is fixedly connected to a limiting rod (5079), the limiting rod (5079) comprising a short column fixedly connected to the top end of the fixed plate (5077) and an elastic rod fixedly connected to one side of the short column, the elastic rod being located between the two fixed plates (5077), and the elastic rod of the limiting rod (5079) being in contact with and connected to the cutting plate (5084) in a vertical state.

7. The wire-cut molybdenum wire cutting and recovery device according to claim 1, characterized in that: The pressing and cutting assembly (508) comprises a support rod (5081) fixedly connected to the top of a fixed sleeve (5043) and a round shaft (5082) fixedly connected to the top of the support rod (5081), the side of the round shaft (5082) being movably connected to a rotating sleeve (5083) and a rotating sleeve (5086), wherein a cutting plate (5084) is provided on the outer edge of the rotating sleeve (5083) along the tangential direction, and a cutting blade (5085) is provided on the side of the cutting plate (5084). A second pressing rod (5087) is fixedly connected to the side of the second outer rotating sleeve (5086) along the axial direction, one end of the second pressing rod (5087) is enlarged and provided with a slot, which can be engaged with the locking rod (5076), a second pressing block (5088) is provided at the bottom end of the second pressing rod (5087), and a cutting groove (5089) is provided at the top end of the second pressing rod (5087), wherein the second pressing rod (5087) and the second pressing block (5088) match the shape of the second pressing groove (5046).

8. The wire-cut molybdenum wire cutting and recovery device according to claim 1, characterized in that: The cutting assembly (503) comprises a cutting plate (5031) fixedly connected to a fixing frame 1 (501); a cutting groove (5032) is provided at the top of the cutting plate (5031); a fixing frame 2 (5033) is fixedly connected to one side of the cutting plate (5031); a hydraulic cylinder (5034) and a telescopic rod (5035) are fixedly connected to the top of the inside of the fixing frame 2 (5033); a knife seat (5036) is fixedly connected to the bottom end of the telescopic rod (5035); a cutting knife (5037) is fixedly connected to the bottom end of the knife seat (5036); the cutting knife (5037) is located above the cutting groove (5032); and the plane where the cutting knife (5037) is located is in the same plane as the long axis of the cutting groove (5032).

9. The wire-cut molybdenum wire cutting and recovery device according to claim 8, characterized in that: A contact point 1 (5038) is fixedly connected to one side of the inner top of the second fixing frame (5033), and a contact point 2 (5039) is arranged below the contact point 1 (5038), and the contact point 2 (5039) is arranged at the top of the second fixing sleeve (5074).

10. The wire-cut molybdenum wire cutting and recovery device according to claim 1, characterized in that: The wire wheel 1 (502) comprises a round rod 1 (5021) fixedly connected to the inner wall of a fixed frame 1 (501); a movable sleeve (5025) is movably connected to the side of the round rod 1 (5021); a movable wheel 1 (5022) is fixedly connected to the peripheral side of the movable sleeve (5025); a wire passing groove 1 (5023) and a wire pressing groove 1 (5024) are provided on the side of the movable wheel 1 (5022); the wire passing groove 1 (5023) is provided along the outer diameter of the movable wheel 1 (5022); the direction of the wire pressing groove 1 (5024) is perpendicular to the wire passing groove 1 (5023); a spring 1 (5026) is fixedly connected to the peripheral side of the movable sleeve (5025); the spring 1 (5026) is fixedly connected to the peripheral side of the movable sleeve (5025); 26), a top end of the pressing rod (5027) is fixedly connected to the pressing rod (5027), a pressing block (5028) is arranged at the middle of the bottom end of the pressing rod (5027), wherein the pressing rod (5027) and the pressing block (5028) match the shape of the pressing groove (5024), one end of the pressing rod (5027) is enlarged and provided with a slot, which can be engaged with the clamping rod (5076), and the other end of the pressing rod (5027) is movably connected to a fixed support rod (5029), the bottom end of the fixed support rod (5029) is fixedly connected to the peripheral side of the movable sleeve (5025), and the fixed support rod (5029) and the spring (5026) are arranged on both sides of the movable wheel (5022).

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