A high-efficiency low-waste wire cutting device

Abstract

The utility model relates to cutting device technical field especially discloses a kind of high-efficiency low-waste wire cutting device, including rack, cutting mechanism being set on rack, workbench and with the electric connection control center of cutting mechanism;The cutting mechanism includes wire storage drum, threading mechanism and the tensioning mechanism being set on threading mechanism, workbench includes reciprocatingly moving first moving mechanism on rack, reciprocatingly moving second moving mechanism on first moving mechanism, operating table top being set on second moving mechanism and fastening device being set on operating table top, the moving track of first moving mechanism and the moving track of second moving mechanism intersect;External component to be cut is fixed on operating table top via fastening device, wire rod is wound in wire storage drum outside and is sequentially payed out to threading mechanism, tensioning mechanism via wire storage drum, wire rod carries out wire cutting to external component to be cut placed on operating table top.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular discloses a high-efficiency, low-waste wire cutting device. Background Technology

[0002] In the field of cutting and processing, traditional cutting processes have gradually exposed many technical bottlenecks, making it difficult to adapt to the needs of industry development. Traditional processes mainly rely on single CNC machining, resulting in extremely low material utilization. Although wire cutting devices are widely used due to their advantages in processing complex shapes, they still have many shortcomings that restrict the demand for high efficiency and low waste: the wire tension is difficult to dynamically adapt, and it is easy to cause accuracy deviation due to slack or breakage due to excessive tightness; the worktable movement and positioning accuracy is insufficient and its coordination with cutting is poor, which easily produces scrap parts; the cooling system has low circulation efficiency, which wastes resources and may damage parts due to untimely cooling; and there is a lack of reliable wire breakage detection, which wastes energy and easily damages the workpiece when the wire breaks and the equipment runs idle. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a high-efficiency, low-waste wire cutting device.

[0004] To achieve the above objectives, this utility model provides a high-efficiency, low-waste wire cutting device, comprising a frame, a cutting mechanism mounted on the frame, a worktable, and a control center electrically connected to the cutting mechanism. The cutting mechanism includes a wire storage drum, a wire threading mechanism, and a tensioning mechanism mounted on the wire threading mechanism. The worktable includes a first moving mechanism reciprocating on the frame, a second moving mechanism reciprocating on the first moving mechanism, an operating surface mounted on the second moving mechanism, and a fastening device mounted on the operating surface. The movement trajectories of the first moving mechanism and the second moving mechanism intersect. An external component to be cut is fixed to the operating surface via the fastening device. Wire is wound around the outside of the wire storage drum and sequentially fed through the drum to the wire threading mechanism and the tensioning mechanism. The tensioning mechanism adjusts the tension of the wire. The first and second moving mechanisms drive the external component to be cut to reciprocate and move closer to the wire, and the wire performs wire cutting on the external component placed on the operating surface.

[0005] First, the external part to be cut is stably fixed by the fastening device on the operating table to prevent workpiece displacement during cutting and thus avoid the generation of scrap. Then, the wire in the wire storage drum is sequentially fed to the threading mechanism and the tensioning mechanism. The tensioning mechanism can adjust the wire tension in real time to effectively prevent cutting accuracy deviation due to excessive looseness or breakage due to excessive tightness, significantly reducing wire loss. The control center simultaneously controls the first and second moving mechanisms of the worktable (their moving trajectories intersect), driving the part to be cut to move flexibly in mutually perpendicular directions on the horizontal plane, accurately approaching the wire to achieve cutting. This can adapt to the processing needs of workpieces of different shapes and sizes, and reduce unnecessary movement to improve processing efficiency. Throughout the process, the control center and the cutting mechanism are electrically linked to ensure that the wire feeding, tensioning, workpiece movement, and cutting actions are coordinated, avoiding energy waste and material loss caused by equipment idling or movement deviation. Ultimately, this achieves the dual benefits of improved cutting efficiency and reduced scrap, and is especially suitable for wire EDM processing scenarios with high requirements for precision and cost control.

[0006] The threading mechanism includes a frame, an upper threading arm and a lower threading arm mounted on the frame, and a take-up component. The lower threading arm is located below the upper threading arm. The wire is wound around the outside of the wire storage drum and is sequentially released from the drum to the upper threading arm, the lower threading arm, and the take-up component. The released end of the wire is taken up by the take-up component.

[0007] First, fix the frame of the wire threading mechanism to the corresponding position on the machine frame. Then, assemble the upper and lower wire frame arms onto the wire frame (ensuring the lower wire frame arm is directly below the upper wire frame arm, forming a corresponding and orderly wire transmission channel). Simultaneously, install the take-up component and align it with the output end of the lower wire frame arm. After the wire is drawn from the storage drum, it is threaded sequentially along the path of "storage drum → upper wire frame arm → lower wire frame arm → take-up component." Once the take-up component is activated, it synchronously takes in the wire from the output end, establishing a stable closed-loop transmission system. The beneficial effects of this structure are: The upper and lower wire support arms, distributed vertically, can precisely regulate the wire transmission trajectory, preventing the wire from tangling, deviating, or colliding and rubbing against other components during transmission, significantly reducing wire wear and loss. At the same time, the wire take-up component and the wire storage drum work together to maintain the initial stability of wire transmission speed and tension, providing a reliable transmission foundation for the subsequent tensioning mechanism to accurately adjust the wire tension and efficiently cut the parts to be processed. This further ensures cutting accuracy and overall processing efficiency, reducing waste parts and consumables caused by wire transmission problems.

[0008] The wire frame arm includes an arm body, baffles on both sides of the arm body, and multiple sets of guide wheels evenly distributed along the length of the arm body. The outer periphery of the guide wheels is provided with an arc-shaped groove adapted to the wire.

[0009] The wire frame arm uses the arm body as the basic carrier, with baffles fixedly installed on both sides. Multiple sets of guide wheels are assembled at equal intervals along the length of the arm body, and the arc-shaped grooves on the outer circumference of the guide wheels are precisely matched with the diameter of the wire. During operation, the wire is embedded in the arc-shaped grooves and is transmitted sequentially along the guide wheels. The baffles on both sides can prevent the wire from shifting and falling off to the outside of the arm body. The equally distributed guide wheels provide multi-point uniform support and guidance for the wire through the arc-shaped grooves, avoiding the wire from shaking, rubbing or slipping due to unstable transmission path.

[0010] The tensioning mechanism is located at the inlet end of the upper wire arm. The tensioning mechanism includes a fixed seat on the upper wire arm, a tensioning wheel rotatably mounted on the fixed seat, an elastic element mounted on the side of the tensioning wheel, and a tension sensor mounted on the shaft of the tensioning wheel. The tension sensor is electrically connected to the control center. The wire passes through the tensioning wheel and the elastic element in sequence. The elastic element uses its own elasticity to make the tensioning wheel apply pressure to the wire, thereby adjusting the tension of the wire.

[0011] The rotating tensioning wheel converts sliding friction into rolling friction, reducing wire wear; the elastic element can adapt to tension fluctuations, preventing the wire from shifting due to being too loose or breaking due to being too tight; the tension sensor is linked with the control center to achieve real-time monitoring, and combined with the installation position at the wire inlet, it can establish a stable tension foundation during the initial transmission stage of the wire, providing a reliable wire condition for subsequent cutting, thereby reducing waste parts and consumables, and improving processing accuracy and efficiency.

[0012] The elastic element includes an elastic shaft that abuts against the wire and a first driving member that drives the elastic shaft to reciprocate. The first driving member is electrically connected to the control center. When the wire storage drum stops releasing wire, the control center controls the movement path of the first driving member based on the wire tension information fed back by the tension sensor. When the wire tension does not reach the preset value, the first driving member drives the elastic shaft away from the tensioning wheel to increase the wire tension.

[0013] The elastic shaft of the elastic element contacts the wire. The first drive component, which drives the elastic shaft to reciprocate, is electrically connected to the control center. Simultaneously, a tension sensor collects wire tension data in real time and feeds it back to the control center. When the wire drum stops releasing wire, the control center receives feedback information from the tension sensor. If it detects that the wire tension has not reached the preset value, it controls the first drive component to move the elastic shaft away from the tensioning wheel, thereby increasing the wire tension by increasing the contact force between the elastic shaft and the wire. The beneficial effects of this structure are: compared to traditional purely mechanical elastic adjustment, the electrical linkage between the first drive component and the control center enables precise and controllable adjustment of the wire tension. It can promptly replenish tension in scenarios where tension drops are likely to occur when the wire drum stops releasing wire, effectively avoiding transmission deviation or cutting accuracy deviation caused by wire slack. At the same time, by dynamically adjusting the position of the elastic shaft based on actual tension data, the control center can avoid wire breakage caused by excessive tension adjustment, reduce wire loss, and further ensure the stability of the wire state during subsequent cutting, providing support for improving processing accuracy and reducing waste.

[0014] When the elastic shaft moves away from the tensioning wheel under the action of the first drive component, the linear distance between the two contact points increases, and the actual stretched length of the wire in that section is forced to increase (similar to "pulling the two ends of a wire apart, the wire will be taut"). According to the mechanical properties of materials, the greater the length of the wire stretched within its elastic range, the greater the internal tension (pull force).

[0015] The first moving mechanism includes a first moving guide rail fixed on the frame, a first moving table that reciprocates along the length of the first moving guide rail, and a second driving component that drives the first moving table to move. The second moving mechanism includes a second moving guide rail fixed on the first moving table, a second moving table that reciprocates along the length of the second moving guide rail, and a third driving component that drives the second moving table to move. The operating table is fixedly mounted on the second moving table, and the extension directions of the first and second moving guide rails are perpendicular to each other. The second and third driving components are electrically connected to the control center. The control center controls the start, stop, and running speed of the second and third driving components to drive the operating table to move in two mutually perpendicular directions on the horizontal plane, thereby adjusting the relative position of the part to be cut and the wire.

[0016] During the cutting operation, the control center regulates the start / stop and operating speed of the second and third drive components, driving the first moving table along the first moving guide rail and the second moving table along the second moving guide rail. This allows the operating table to move flexibly in two mutually perpendicular directions (such as the X-axis and Y-axis) on the horizontal plane, achieving precise relative position adjustment between the part to be cut and the wire. The advantages of this structure are that the vertically arranged dual moving guide rails, combined with independent drive components, provide a comprehensive two-dimensional movement space for the operating table, flexibly adapting to the alignment requirements of parts of different sizes and shapes to be cut. Furthermore, the electronic control linkage of the control center can precisely control the movement speed and start / stop timing, avoiding errors from manual adjustments, reducing cutting defects caused by misalignment, improving part movement efficiency, ensuring the accuracy and overall efficiency of wire EDM processing, and reducing material waste and ineffective energy consumption.

[0017] The operating table includes a support platform, a first clamp set on the support platform, and a second clamp set parallel to the first clamp. The first clamp and the second clamp are located on both sides of the threading mechanism. The clamp includes a placement plate, a rod set on the placement plate, and a locking block sleeved on the rod. The two ends of the part to be cut are respectively pressed on the placement plate of the first clamp and the placement plate of the second clamp. The outer peripheral surface of the rod is provided with external threads, and the inner wall of the locking block is provided with internal threads adapted to the external threads. The locking block moves up and down along the axial direction of the rod through the threaded engagement to press or release the part to be cut placed on the placement plate.

[0018] The operating platform is based on a support platform. A first clamp and a second clamp are installed on the support platform, ensuring they are parallel to each other and located on opposite sides of the threading mechanism. During clamp assembly, the placement plate is first fixed to the corresponding position on the support platform. A rod with external threads is then mounted on the placement plate, and a locking block with matching internal threads is fitted onto the rod. To fix the part to be cut, both ends are placed on the placement plates of the first and second clamps, respectively. By rotating the locking block, the threaded engagement causes the block to descend axially along the rod, pressing the part against the placement plate. Disassembly involves rotating the block in the opposite direction to loosen it. The advantages of this structure are as follows: the threaded locking method provides a stable and adjustable clamping force, avoiding accuracy deviations caused by loosening of the parts to be cut during the cutting process; the design of the first and second clamps being parallel and separately located on both sides of the wire threading mechanism is suitable for long strip-shaped workpieces or workpieces that need to span the cutting area, while also facilitating the cutting of the middle area of ​​the workpiece by the wire; the overall structure is simple and easy to operate, and the clamping position can be flexibly adjusted according to the workpiece size, reducing scrap caused by workpiece fixing problems, and further ensuring the accuracy and stability of wire EDM processing.

[0019] The cutting device also includes a cooling system mounted on the frame. The cooling system includes a liquid storage tank, a delivery pump connected to the liquid storage tank, a liquid guide pipe connected to the delivery pump, and atomizing nozzles mounted on both sides of the wire threading mechanism. The water spray direction of the atomizing nozzles is directed towards the contact area between the wire and the part to be cut. The atomizing nozzles are electrically connected to the control center, which can synchronously control the start and stop of the atomizing nozzles and the cutting mechanism.

[0020] The support platform has a flange protruding from the reference surface of the support platform and multiple sets of convex strips set on the reference surface of the support platform. The clamps are located on the convex strips, and the multiple sets of clamps together form multiple sets of guide grooves. The bottom of the guide groove is inclined towards the edge of the support platform, and a drain port connected to the guide groove is opened on the side of the flange near the outlet of the guide groove. A return groove connected to the storage tank is provided below the drain port. During cooling, the delivery pump delivers the coolant in the storage tank to the atomizing nozzle through the guide pipe. The atomized coolant is sprayed onto the cutting area to achieve cooling and lubrication. The waste liquid is collected through the guide groove and flows into the return groove through the drain port, and finally flows back to the storage tank to complete the circulation.

[0021] The cooling system's liquid storage tank is fixed to the frame. A delivery pump connects the liquid storage tank to the liquid guide pipe, which connects to atomizing nozzles on both sides of the wire threading mechanism (the nozzles face the contact area between the wire and the part to be cut). The atomizing nozzles are electrically connected to the control center. A flange protruding from the reference surface is provided on the side of the support platform. Multiple sets of raised strips are arranged on the reference surface. The clamps are placed on the raised strips, forming a guide channel between the clamps (the bottom of the channel slopes towards the edge of the support platform). A drain port is opened near the outlet of the guide channel on the flange, and a return tank connected to the liquid storage tank is located below it. During cutting, the control center simultaneously starts and stops the atomizing nozzles and the cutting mechanism. The delivery pump sends coolant to the atomizing nozzles through the liquid guide pipe. After atomization, the coolant is sprayed onto the cutting area for cooling and lubrication. Waste liquid collects along the inclined guide channel, flows into the return tank through the drain port, and then returns to the liquid storage tank to complete the cycle. The beneficial effects of this structure are as follows: the atomizing nozzle precisely cools the cutting area, effectively preventing wire overheating and breakage, as well as workpiece thermal deformation; the control center synchronously controls and reduces ineffective coolant consumption; the guide channel, drain port, and return channel form a closed-loop circulation, significantly improving coolant utilization and reducing consumable costs; the side guards and inclined bottom of the channel ensure no waste liquid residue, preventing liquid accumulation from affecting processing accuracy. Overall, through the synergy of cooling and recycling, it not only ensures cutting quality but also significantly reduces waste and improves the economic efficiency of the device.

[0022] The threading mechanism also includes a wire breakage detection component installed on the wire transmission path. The wire breakage detection component includes an infrared transmitter and an infrared receiver located on the inner side of the upper wire frame arm. The infrared transmitter and infrared receiver are located on both sides of the wire and their axes are collinear. The infrared receiver is electrically connected to the control center. When the wire breaks, the infrared receiver receives the signal from the infrared transmitter and feeds it back to the control center. The control center immediately controls the cutting mechanism and the workbench to stop running and triggers the audible and visual alarm module to avoid energy waste caused by the equipment running idle after the wire breaks and secondary damage to the parts to be cut.

[0023] First, assemble the wire breakage detection component on the wire transmission path of the threading mechanism and fix it inside the upper wire frame arm (avoiding external light interference to ensure detection accuracy). Install the infrared transmitter and infrared receiver on both sides of the wire, ensuring that their axes are collinear. At the same time, electrically connect the infrared receiver to the control center, which is pre-connected to the audible and visual alarm module. During normal cutting, the wire is between the infrared transmitter and receiver, blocking the infrared light between them. The infrared receiver has no signal feedback, and the equipment continues to run. When the wire breaks, the obstruction disappears, the infrared receiver receives and converts the signal from the infrared transmitter into an electrical signal, and feeds it back to the control center in real time. The control center immediately triggers a command to stop the cutting mechanism (wire storage drum, wire take-up component, etc.) and the worktable (first and second moving mechanisms), and at the same time activates the audible and visual alarm module to issue a warning. The beneficial effects of this structure are as follows: the design of the installation position on the inner side of the upper frame arm being collinear with the axis avoids external environmental interference and ensures accurate and error-free wire breakage detection; the control logic that stops the machine immediately after a wire breakage completely eliminates energy waste caused by the equipment running idle, while preventing the worktable from continuing to move and causing the part to be cut to collide with the wire remnant, thus avoiding secondary damage; the triggering of the audible and visual alarm module can quickly remind the operator to handle the fault, shorten downtime for maintenance, and further ensure processing efficiency and workpiece quality.

[0024] The wire is diamond wire, the part to be cut is glass, and the moving mechanism drives the glass to move along the cutting trajectory so that the diamond wire first cuts into the middle of the glass along the thickness direction of the glass, then cuts the glass along the length direction of the glass and along the middle of the glass, and then cuts out of the glass along the thickness direction of the glass so that the glass is cut into two identical glass units.

[0025] Strictly match the cutting path of "thickness direction in → middle length cut → thickness direction out" to ensure the dimensional consistency of the glass part when it is cut into two identical units, and reduce asymmetrical scrap parts caused by trajectory deviation.

[0026] The first cutting trajectory is in the thickness direction, the second cutting trajectory is in the middle length direction, and the third cutting trajectory is in the thickness direction outward.

[0027] The beneficial effects of this utility model are as follows: The cutting mechanism achieves stable wire transmission and dynamic tension control; the two-dimensional precise movement of the worktable enables efficient alignment of the workpiece and wire; and the closed-loop cooling and wire breakage protection mechanism systematically solves the problems of high waste, poor precision, and low efficiency in traditional wire cutting devices. Its beneficial effects are significant: Firstly, the upper and lower arms and guide wheels (with arc-shaped grooves) of the wire threading mechanism regulate the wire transmission trajectory; secondly, the rolling tension wheel (reducing wear), electrically controlled elastic shaft, and tension sensor of the tensioning mechanism (for real-time precise tension adjustment) effectively prevent wire slack or excessive tension leading to breakage, significantly reducing wire loss. On the other hand, the dual vertical moving mechanism of the worktable (electrically driven) can flexibly adapt to workpieces of different sizes and shapes. Combined with the stable clamping effect of the threaded locking fixture, it reduces workpiece displacement and alignment error, improves cutting accuracy and reduces scrap rate. At the same time, the atomizing nozzle precisely cools the cutting area + the guide groove-return groove closed loop circulation reduces coolant waste and component thermal deformation. The wire breakage detection component (infrared beam + instant stop alarm) eliminates the energy consumption of the equipment during idling and secondary damage to the workpiece. Overall, it achieves a double reduction in cutting efficiency and material and energy waste, which is especially suitable for wire cutting scenarios with high requirements for processing accuracy and cost control. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the cutting mechanism of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the first moving mechanism and the second moving mechanism of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the work surface of this utility model;

[0032] Figure 5 This is a schematic diagram of the wire breakage detection component of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the external component to be cut after cutting according to this utility model.

[0034] The reference numerals in the figures include:

[0035] 1. Frame; 2. Cutting mechanism; 3. Worktable; 5. Wire storage drum; 6. Threading mechanism; 7. Tensioning mechanism; 8. First moving mechanism; 9. Second moving mechanism; 11. Operating table; 12. Frame body; 13. Upper wire support arm; 14. Lower wire support arm; 15. Wire take-up component; 16. Arm body; 17. Baffle; 18. Guide wheel; 19. Fixed base; 21. Tensioning wheel; 23. Elastic shaft; 24. First driving component; 25. First moving guide rail; 26. First moving table; 27. Second driving component; 28. Second moving guide rail; 29. Second moving stage; 31. Third driving component; 32. Support platform; 33. First clamp; 34. Second clamp; 35. Placement plate; 36. Rod; 37. Locking block; 38. Cooling system; 39. Liquid storage tank; 41. Delivery pump; 42. Liquid guide pipe; 43. Atomizing nozzle; 44. Edge retainer; 45. Protrusion; 46. Guide groove; 47. Drain outlet; 48. Wire breakage detection component; 49. Infrared transmitter; 51. Infrared receiver; 100. First cutting trajectory; 200. Second cutting trajectory; 300. Third cutting trajectory. Detailed Implementation

[0036] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0037] Please see Figures 1 to 5 As shown, this utility model discloses a high-efficiency, low-waste wire cutting device, including a frame 1, a cutting mechanism 2 mounted on the frame 1, a worktable 3, and a control center electrically connected to the cutting mechanism 2. The cutting mechanism 2 includes a wire storage drum 5, a wire threading mechanism 6, and a tensioning mechanism 7 mounted on the wire threading mechanism 6. The worktable 3 includes a first moving mechanism 8 reciprocating on the frame 1, a second moving mechanism 9 reciprocating on the first moving mechanism 8, an operating surface 11 mounted on the second moving mechanism 9, and a fastening device mounted on the operating surface 11. The moving trajectory of the first moving mechanism 8 intersects with the moving trajectory of the second moving mechanism 9. An external component to be cut is fixed to the operating surface 11 via the fastening device. The wire is wound around the outside of the wire storage drum 5 and sequentially fed through the wire storage drum 5 to the wire threading mechanism 6 and the tensioning mechanism 7. The tensioning mechanism 7 adjusts the tension of the wire. The first moving mechanism 8 and the second moving mechanism 9 drive the external component to be cut to reciprocate and move closer to the wire. The wire performs wire cutting on the external component to be cut placed on the operating surface 11.

[0038] First, the external part to be cut is stably fixed by the fastening device on the operating table 11 to avoid workpiece displacement during the cutting process, which would result in scrap. Then, the wire in the wire storage drum 5 is sequentially fed to the threading mechanism 6 and the tensioning mechanism 7. The tensioning mechanism 7 can adjust the wire tension in real time, effectively preventing cutting accuracy deviation due to excessive looseness or breakage due to excessive tightness, and significantly reducing wire loss. The control center synchronously controls the first moving mechanism 8 and the second moving mechanism 9 of the worktable 3 (their moving trajectories intersect), driving the part to be cut to move flexibly in mutually perpendicular directions on the horizontal plane, accurately approaching the wire to achieve cutting. This can adapt to the processing needs of workpieces of different shapes and sizes, and reduce ineffective movement to improve processing efficiency. Throughout the process, the control center and the cutting mechanism 2 are electrically linked to ensure that the wire feeding, tensioning, workpiece movement, and cutting actions are coordinated, avoiding energy waste and material loss caused by equipment idling or action deviation. Ultimately, this achieves the dual benefits of improved cutting efficiency and reduced scrap, which is especially suitable for wire EDM processing scenarios with high requirements for precision and cost control.

[0039] The threading mechanism 6 includes a frame 12, an upper threading arm 13 and a lower threading arm 14 mounted on the frame 12, and a take-up component 15. The lower threading arm 14 is located below the upper threading arm 13. The wire is wound around the outside of the wire storage drum 5 and is sequentially released from the wire storage drum 5 to the upper threading arm 13, the lower threading arm 14, and the take-up component 15. The released end of the wire is taken up by the take-up component 15.

[0040] First, fix the frame 12 of the threading mechanism 6 to the corresponding position on the frame 1. Then, assemble the upper wire frame arm 13 and the lower wire frame arm 14 onto the wire frame (ensuring the lower wire frame arm 14 is directly below the upper wire frame arm 13, forming a corresponding and orderly wire transmission channel). Simultaneously, install the take-up component 15 and align it with the outlet end of the lower wire frame arm 14. After the wire is drawn out from the wire storage drum 5, it is threaded sequentially along the path of "wire storage drum 5 → upper wire frame arm 13 → lower wire frame arm 14 → take-up component 15". After the take-up component 15 is activated, it synchronously takes in the wire from the outlet end, constructing a stable closed-loop transmission system for the wire. The beneficial effect of this structure is that the upper wire support arm 13 and the lower wire support arm 14, which are distributed vertically, can accurately regulate the wire transmission trajectory, avoid the wire from getting tangled, deviating, or colliding and rubbing with other components during transmission, and significantly reduce wire wear and loss. At the same time, the wire take-up component 15 and the wire storage drum 5 work together to maintain the initial stability of the wire transmission speed and tension, providing a reliable transmission foundation for the subsequent tensioning mechanism 7 to accurately adjust the wire tension and efficiently cut the parts to be processed, further ensuring cutting accuracy and overall processing efficiency, and reducing waste of scrap parts and consumables caused by wire transmission problems.

[0041] The wire frame arm includes an arm body 16, baffles 17 disposed on both sides of the arm body 16, and multiple sets of guide wheels 18 equidistantly distributed along the length of the arm body 16. The outer periphery of the guide wheels 18 is provided with an arc-shaped groove adapted to the wire.

[0042] The wire frame arm uses the arm body 16 as the basic carrier, with baffles 17 fixedly installed on both sides. Multiple sets of guide wheels 18 are assembled at equal intervals along the length of the arm body 16, and the arc-shaped grooves on the outer periphery of the guide wheels 18 are precisely matched with the diameter of the wire. During operation, the wire is embedded in the arc-shaped grooves and is transmitted sequentially along the guide wheels 18. The baffles 17 on both sides can prevent the wire from shifting and falling off to the outside of the arm body 16. The equally distributed guide wheels 18 provide multi-point uniform support and guidance for the wire through the arc-shaped grooves, avoiding the wire from shaking, rubbing or slipping due to unstable transmission path.

[0043] The tensioning mechanism 7 is located at the wire inlet end of the upper wire frame arm 13. The tensioning mechanism 7 includes a fixed seat 19 on the upper wire frame, a tensioning wheel 21 rotatably mounted on the fixed seat 19, an elastic element mounted on the side of the tensioning wheel 21, and a tension sensor mounted on the shaft of the tensioning wheel 21. The tension sensor is electrically connected to the control center. The wire passes through the tensioning wheel 21 and the elastic element in sequence. The elastic element uses its own elastic force to make the tensioning wheel 21 apply pressure to the wire, thereby adjusting the tension of the wire.

[0044] The rotating tension wheel 21 converts sliding friction into rolling friction, reducing wire wear; the elastic element can adapt to tension fluctuations, preventing the wire from shifting due to being too loose or breaking due to being too tight; the tension sensor is linked with the control center to achieve real-time monitoring, and combined with the installation position at the wire inlet, it can establish a stable tension foundation in the initial transmission stage of the wire, providing a reliable wire condition for subsequent cutting, thereby reducing waste parts and consumables, and improving processing accuracy and efficiency.

[0045] The elastic element includes an elastic shaft 23 that abuts against the wire and a first driving member 24 that drives the elastic shaft 23 to reciprocate. The first driving member 24 is electrically connected to the control center. When the wire storage drum 5 stops releasing wire, the control center controls the movement path of the first driving member 24 based on the wire tension information fed back by the tension sensor. When the wire tension does not reach the preset value, the first driving member 24 drives the elastic shaft 23 away from the tensioning wheel 21 to increase the wire tension.

[0046] The elastic shaft 23 of the elastic element abuts against the wire. The first driving component 24, which drives the elastic shaft 23 to reciprocate, is electrically connected to the control center. Simultaneously, the tension sensor collects wire tension data in real time and feeds it back to the control center. When the wire storage drum 5 stops releasing wire, the control center receives feedback information from the tension sensor. If it detects that the wire tension has not reached the preset value, it controls the first driving component 24 to move the elastic shaft 23 away from the tensioning wheel 21, thereby increasing the wire tension by increasing the abutment force of the elastic shaft 23 against the wire. The beneficial effects of this structure are: compared with traditional purely mechanical elastic adjustment, the electrical linkage between the first driving component 24 and the control center achieves precise and controllable adjustment of the wire tension. It can promptly replenish tension in scenarios where tension drops are likely to occur when the wire storage drum 5 stops releasing wire, effectively avoiding transmission offset or cutting accuracy deviation caused by wire slack. At the same time, by dynamically adjusting the position of the elastic shaft 23 according to the actual tension data, the control center can avoid wire breakage caused by excessive tension adjustment, reduce wire loss, and further ensure the stability of the wire state during subsequent cutting, providing support for improving processing accuracy and reducing waste.

[0047] When the elastic shaft 23 moves away from the tensioning wheel 21 under the action of the first driving member 24, the straight-line distance between the two contact points increases, and the actual tensile length of the wire in that section is forced to increase (similar to "pulling the two ends of a wire apart, the wire will be taut"). According to the mechanical properties of materials, the greater the length of the wire that is stretched within the elastic range, the greater the internal tension (pull force).

[0048] The first moving mechanism 8 includes a first moving guide rail 25 fixed on the frame 1, a first moving platform 26 that reciprocates along the length of the first moving guide rail 25, and a second driving member 27 that drives the first moving platform 26 to move. The second moving mechanism 9 includes a second moving guide rail 28 fixed on the first moving platform 26, a second moving platform 29 that reciprocates along the length of the second moving guide rail 28, and a third driving member 31 that drives the second moving platform 29 to move. The operating table 11 is fixedly mounted on the second moving platform 29, and the extension directions of the first moving guide rail 25 and the second moving guide rail 28 are perpendicular. The second driving member 27 and the third driving member 31 are both electrically connected to the control center. The control center controls the start, stop, and running speed of the second driving member 27 and the third driving member 31 to drive the operating table 11 to move in two mutually perpendicular directions on the horizontal plane, thereby realizing the adjustment of the relative position of the part to be cut and the wire.

[0049] During the cutting operation, the control center regulates the start / stop and operating speed of the second drive component 27 and the third drive component 31, driving the first moving table 26 along the first moving guide rail 25 and the second moving table 29 along the second moving guide rail 28. This allows the operating table 11 to move flexibly in two mutually perpendicular directions (such as the X-axis and Y-axis) on the horizontal plane, achieving precise relative position adjustment between the part to be cut and the wire. The beneficial effects of this structure are that the vertically set dual moving guide rails, combined with independent drive components, provide the operating table 11 with a comprehensive two-dimensional movement space, which can flexibly adapt to the alignment requirements of parts to be cut of different sizes and shapes. Furthermore, the electrical control linkage of the control center can accurately control the movement speed and start / stop timing, avoiding errors from manual adjustment, reducing cutting waste caused by misalignment, improving the movement efficiency of parts, ensuring the accuracy and overall efficiency of wire EDM processing, and reducing material loss and ineffective energy consumption.

[0050] The operating table 11 includes a support platform 32, a first clamp 33 disposed on the support platform 32, and a second clamp 34 disposed parallel to the first clamp 33. The first clamp 33 and the second clamp 34 are respectively located on both sides of the threading mechanism 6. The clamp includes a placement plate 35, a rod 36 disposed on the placement plate 35, and a locking block 37 sleeved on the rod 36. The two ends of the part to be cut are respectively pressed on the placement plate 35 of the first clamp 33 and the placement plate 35 of the second clamp 34. The outer circumferential surface of the rod 36 is provided with an external thread, and the inner wall of the locking block 37 is provided with an internal thread adapted to the external thread. The locking block 37 moves up and down along the axial direction of the rod 36 through the threaded engagement to press or release the part to be cut placed on the placement plate 35.

[0051] The operating table 11 is based on the support table 32. A first clamp 33 and a second clamp 34 are installed on the support table 32, ensuring they are parallel to each other and located on opposite sides of the threading mechanism 6. During clamp assembly, the placement plate 35 is first fixed to the corresponding position on the support table 32. A rod 36 with external threads is then mounted on the placement plate 35. A locking block 37 with internal threads is then fitted onto the rod 36. When fixing the part to be cut, both ends are placed on the placement plates 35 of the first clamp 33 and the second clamp 34, respectively. By rotating the locking block 37, the threaded engagement causes the block to descend axially along the rod 36, pressing the part to be cut firmly onto the placement plate 35. Disassembly is achieved by rotating the block in the opposite direction. The advantages of this structure are as follows: the threaded locking method provides a stable and adjustable clamping force, avoiding accuracy deviations caused by loosening of the parts to be cut during the cutting process; the design of the first and second clamps 34 being parallel and separately located on both sides of the wire threading mechanism 6 is suitable for long strip-shaped workpieces or workpieces that need to cross the cutting area, while also facilitating the cutting of the middle area of ​​the workpiece by the wire; the overall structure is simple and easy to operate, and the clamping position can be flexibly adjusted according to the workpiece size, reducing scrap caused by workpiece fixing problems, and further ensuring the accuracy and stability of wire EDM processing.

[0052] The cutting device also includes a cooling system 38 mounted on the frame 1. The cooling system 38 includes a liquid storage tank 39, a delivery pump 41 connected to the liquid storage tank 39, a liquid guide pipe 42 connected to the delivery pump 41, and atomizing nozzles 43 mounted on both sides of the wire threading mechanism 6. The water spray direction of the atomizing nozzles 43 is directed towards the contact area between the wire and the part to be cut. The atomizing nozzles 43 are electrically connected to the control center, and the control center can synchronously control the start and stop of the atomizing nozzles 43 and the cutting mechanism 2.

[0053] The support platform 32 has a side flange 44 protruding from the reference surface of the support platform 32 and multiple sets of protrusions 45 set on the reference surface of the support platform 32. The clamps are located on the protrusions 45, and the multiple sets of clamps together form multiple sets of guide grooves 46. The bottom of the guide grooves 46 is inclined towards the edge of the support platform 32, and the side flange 44 near the outlet of the guide grooves 46 has a drain port 47 connected to the guide grooves 46. Below the drain port 47 is a return groove connected to the storage tank 39. During cooling, the delivery pump 41 delivers the coolant in the storage tank 39 to the atomizing nozzle 43 through the guide pipe 42. The atomized coolant is sprayed onto the cutting area to achieve cooling and lubrication. The waste liquid is collected through the guide grooves 46 and flows into the return groove through the drain port 47, and finally flows back to the storage tank 39 to complete the cycle.

[0054] The liquid storage tank 39 of the cooling system 38 is fixed to the frame 1. The delivery pump 41 connects the liquid storage tank 39 and the liquid guide pipe 42. The liquid guide pipe 42 connects the atomizing nozzles 43 on both sides of the wire threading mechanism 6 (the nozzle direction is directly facing the contact area between the wire and the part to be cut), and the atomizing nozzles 43 are electrically connected to the control center. The side of the support platform 32 is provided with a baffle 44 protruding from the reference surface. The reference surface is provided with multiple sets of convex strips 45. The clamps are placed on the convex strips 45 so that the multiple sets of clamps form a guide groove 46 (the bottom of the groove is inclined towards the edge of the support platform 32). The baffle 44 has a drain port 47 near the outlet of the guide groove 46, and a return groove connected to the liquid storage tank 39 is provided below it. During cutting, the control center simultaneously starts and stops the atomizing nozzle 43 and the cutting mechanism 2. The delivery pump 41 sends coolant to the atomizing nozzle 43 through the liquid guide pipe 42. After atomization, the coolant is sprayed onto the cutting area for cooling and lubrication. Waste liquid is collected along the inclined guide channel 46, flows into the return tank through the drain port 47, and then returns to the storage tank 39 to complete the cycle. The beneficial effects of this structure are: the atomizing nozzle 43 precisely cools the cutting area, effectively preventing wire overheating and breakage and workpiece thermal deformation; the control center synchronously controls and reduces ineffective coolant consumption; the guide channel 46, drain port 47, and return tank form a closed loop, significantly improving coolant utilization and reducing consumable costs; the retaining edge 44 and the inclined tank bottom ensure no waste liquid residue, preventing liquid accumulation from affecting processing accuracy. Overall, through the synergy of cooling and recycling, it not only ensures cutting quality but also significantly reduces waste and improves the economic efficiency of the device.

[0055] The threading mechanism 6 also includes a wire breakage detection component 48 set on the wire transmission path. The wire breakage detection component 48 includes an infrared transmitter 49 and an infrared receiver 51 located inside the upper wire frame arm 13. The infrared transmitter 49 and the infrared receiver 51 are located on both sides of the wire and their axes are collinear. The infrared receiver 51 is electrically connected to the control center. When the wire breaks, the infrared receiver 51 receives the signal from the infrared transmitter 49 and feeds it back to the control center. The control center immediately controls the cutting mechanism 2 and the workbench 3 to stop running and triggers the audible and visual alarm module to avoid energy waste caused by the equipment running idle after the wire breaks and secondary damage to the parts to be cut.

[0056] First, the wire breakage detection component 48 is assembled on the wire transmission path of the threading mechanism 6 and fixed inside the upper wire frame arm 13 (avoiding external light interference to ensure detection accuracy). The infrared transmitter 49 and infrared receiver 51 are installed on both sides of the wire, ensuring that their axes are collinear. At the same time, the infrared receiver 51 is electrically connected to the control center, and the control center is pre-connected to the audible and visual alarm module. During normal cutting, the wire is between the infrared transmitter 49 and the receiver, blocking the infrared light between them. The infrared receiver 51 has no signal feedback, and the equipment continues to run. When the wire breaks, the obstruction disappears, the infrared receiver 51 receives and converts the signal from the infrared transmitter 49 into an electrical signal, and feeds it back to the control center in real time. The control center immediately triggers a command to stop the cutting mechanism 2 (wire storage drum 5, wire take-up component 15, etc.) and the worktable 3 (first and second moving mechanisms 9), and at the same time activates the audible and visual alarm module to issue a warning. The beneficial effects of this structure are as follows: the design of the installation position on the inner side of the upper frame arm 13 being collinear with the axis can avoid external environmental interference and ensure accurate and error-free wire breakage detection; the control logic of stopping the machine immediately after wire breakage can completely eliminate energy waste caused by the equipment running idle, while preventing the worktable 3 from continuing to move and causing the part to be cut to collide with the wire residue, thus avoiding secondary damage; the triggering of the audible and visual alarm module can quickly remind the operator to handle the fault, shorten downtime for maintenance, and further ensure processing efficiency and workpiece quality.

[0057] The wire is diamond wire, the part to be cut is glass, and the moving mechanism drives the glass to move along the cutting trajectory so that the diamond wire first cuts into the middle of the glass along the thickness direction of the glass, then cuts the glass along the length direction of the glass and along the middle of the glass, and then cuts out of the glass along the thickness direction of the glass so that the glass is cut into two identical glass units.

[0058] Strictly match the cutting path of "thickness direction in → middle length cut → thickness direction out" to ensure the dimensional consistency of the glass part when it is cut into two identical units, and reduce asymmetrical scrap parts caused by trajectory deviation.

[0059] The thickness direction is the first cutting trajectory 100, the middle length is the second cutting trajectory 200, and the thickness direction is the third cutting trajectory 300.

[0060] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0061] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-efficiency, low-waste wire cutting device, characterized in that: The system includes a frame (1), a cutting mechanism (2) mounted on the frame (1), a worktable (3), and a control center electrically connected to the cutting mechanism (2). The cutting mechanism (2) includes a wire storage drum (5), a wire threading mechanism (6), and a tensioning mechanism (7) mounted on the wire threading mechanism (6). The worktable (3) includes a first moving mechanism (8) that reciprocates on the frame (1), a second moving mechanism (9) that reciprocates on the first moving mechanism (8), an operating table (11) mounted on the second moving mechanism (9), and a tensioning mechanism (7) mounted on the operating table (11). The movement trajectory of the first moving mechanism (8) intersects with that of the second moving mechanism (9). The external component to be cut is fixed on the operating table (11) by the fastening device. The wire is wound around the outside of the wire storage drum (5) and is sequentially released to the wire threading mechanism (6) and the tensioning mechanism (7) through the wire storage drum (5). The tensioning mechanism (7) adjusts the tension of the wire. The first moving mechanism (8) and the second moving mechanism (9) drive the external component to be cut to move back and forth to approach the wire. The wire performs wire cutting on the external component to be cut placed on the operating table (11).

2. The high-efficiency, low-waste wire cutting device according to claim 1, characterized in that: The threading mechanism (6) includes a frame (12), an upper threading arm (13) and a lower threading arm (14) mounted on the frame (12), and a take-up component (15). The lower threading arm (14) is located below the upper threading arm (13). The wire is wound around the outside of the wire storage drum (5) and is sequentially released from the wire storage drum (5) to the upper threading arm (13), the lower threading arm (14), and the take-up component (15). The released end of the wire is taken up by the take-up component (15).

3. The high-efficiency, low-waste wire cutting device according to claim 2, characterized in that: The wire frame arm includes an arm body (16), baffles (17) on both sides of the arm body (16), and multiple sets of guide wheels (18) evenly distributed along the length of the arm body (16). The outer periphery of the guide wheels (18) is provided with arc-shaped wire grooves adapted to the wire.

4. The high-efficiency, low-waste wire cutting device according to claim 2, characterized in that: The tensioning mechanism (7) is located at the wire inlet end of the upper wire frame arm (13). The tensioning mechanism (7) includes a fixed seat (19) on the upper wire frame arm, a tensioning wheel (21) rotatably mounted on the fixed seat (19), an elastic element on the side of the tensioning wheel (21), and a tension sensor on the shaft of the tensioning wheel (21). The tension sensor is electrically connected to the control center. The wire passes through the tensioning wheel (21) and the elastic element in sequence. The elastic element uses its own elastic force to make the tensioning wheel (21) apply pressure to the wire, thereby adjusting the tension of the wire.

5. The high-efficiency, low-waste wire cutting device according to claim 4, characterized in that: The elastic element includes an elastic shaft (23) that abuts against the wire and a first drive (24) that drives the elastic shaft (23) to reciprocate. The first drive (24) is electrically connected to the control center. When the wire storage drum (5) stops releasing wire, the control center controls the movement path of the first drive (24) based on the wire tension information fed back by the tension sensor. When the wire tension does not reach the preset value, the first drive (24) drives the elastic shaft (23) away from the tensioning wheel (21) to increase the wire tension.

6. The high-efficiency, low-waste wire cutting device according to claim 1, characterized in that: The first moving mechanism (8) includes a first moving guide rail (25) fixed on the frame (1), a first moving table (26) that reciprocates along the length of the first moving guide rail (25), and a second driving member (27) that drives the first moving table (26) to move; the second moving mechanism (9) includes a second moving guide rail (28) fixed on the first moving table (26), a second moving table (29) that reciprocates along the length of the second moving guide rail (28), and a third driving member (31) that drives the second moving table (29) to move; the operating table (11) is fixedly set on the second moving table (29), and the extension direction of the first moving guide rail (25) is perpendicular to that of the second moving guide rail (28); the second driving member (27) and the third driving member (31) are both electrically connected to the control center. The control center controls the start and stop and the running speed of the second driving member (27) and the third driving member (31) to drive the operating table (11) to move in two mutually perpendicular directions on the horizontal plane, thereby realizing the relative position adjustment of the part to be cut and the wire.

7. The high-efficiency, low-waste wire cutting device according to claim 1, characterized in that: The operating table (11) includes a support table (32), a first clamp (33) set on the support table (32), and a second clamp (34) set parallel to the first clamp (33). The first clamp (33) and the second clamp (34) are located on both sides of the threading mechanism (6). The clamp includes a placement plate (35), a rod (36) set on the placement plate (35), and a locking block (37) sleeved on the rod (36). The two ends of the part to be cut are respectively pressed on the placement plate (35) of the first clamp (33) and the placement plate (35) of the second clamp (34). The outer circumferential surface of the rod (36) is provided with an external thread, and the inner wall of the locking block (37) is provided with an internal thread that matches the external thread. The locking block (37) moves up and down along the axial direction of the rod (36) through the threaded engagement to press or release the part to be cut placed on the placement plate (35).

8. The high-efficiency, low-waste wire cutting device according to claim 1, characterized in that: The cutting device also includes a cooling system (38) mounted on the frame (1). The cooling system (38) includes a liquid storage tank (39), a delivery pump (41) connected to the liquid storage tank (39), a liquid guide pipe (42) connected to the delivery pump (41), and atomizing nozzles (43) mounted on both sides of the wire threading mechanism (6). The water spray direction of the atomizing nozzles (43) is directed towards the contact area between the wire and the part to be cut. The atomizing nozzles (43) are electrically connected to the control center, and the control center can synchronously control the start and stop of the atomizing nozzles (43) and the cutting mechanism (2).

9. The high-efficiency, low-waste wire cutting device according to claim 7, characterized in that: The support platform (32) has a flange (44) protruding from the reference surface of the support platform (32) on its side, and multiple sets of protruding strips (45) set on the reference surface of the support platform (32). The clamps are located on the protruding strips (45), and the multiple sets of clamps together form multiple sets of guide grooves (46). The bottom of the guide grooves (46) is inclined towards the edge of the support platform (32), and the flange (44) has a groove (46) on the side near the outlet of the guide groove (46). The drain port (47) is connected to the liquid outlet. Below the drain port (47) is a return tank that is connected to the liquid storage tank (39). During cooling, the delivery pump (41) delivers the coolant in the liquid storage tank (39) to the atomizing nozzle (43) through the liquid guide pipe (42). The atomized coolant is sprayed onto the cutting area to achieve cooling and lubrication. The waste liquid is collected through the guide channel (46) and flows into the return tank through the drain port (47), and finally flows back to the liquid storage tank (39) to complete the cycle.

10. A high-efficiency, low-waste wire cutting device according to claim 1, characterized in that: The wire is diamond wire, the part to be cut is glass, and the moving mechanism drives the glass to move along the cutting trajectory so that the diamond wire first cuts into the middle of the glass along the thickness direction of the glass, then cuts the glass along the length direction of the glass and along the middle of the glass, and then cuts out of the glass along the thickness direction of the glass so that the glass is cut into two identical glass units.

Images