Adjustable wire saw device and method thereof

Abstract

The application discloses a kind of adjustable wire cutting device and method, belong to wire cutting wire technology field, including workbench, wire moving mechanism, wire guide mechanism, mobile platform and recycling module;Wire moving mechanism is installed in the left side of workbench, mobile platform is installed in the right side of workbench;Workbench is fixedly installed with support table one, support table two;Wire moving mechanism is installed on support table one, and wire guide mechanism is installed on support table one and support table two;Wire moving mechanism includes rotating assembly, synchronous movement assembly, adjustable wire clamping assembly and automatic release assembly;Adjustable wire clamping assembly includes multiple arc-shaped mounting plates and wire clamping device, and one wire clamping device is installed on the side of rotating assembly, and is installed on arc-shaped mounting plate;Arc-shaped mounting plate has multiple, and the position of wire clamping device on different arc-shaped mounting plates is different;The other side of rotating assembly is installed with wire clamping device.By the above manner, different length of molybdenum wire can be wound according to the situation, and the molybdenum wire is tightly wound.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire cutting threading technology, in particular to an adjustable wire cutting device and a method thereof. BACKGROUND

[0002] Wire cutting is a device for processing conductive metal through electric spark technology. During the processing, high-frequency pulse electricity with opposite polarity is applied to the molybdenum wire and the workpiece, so that the molybdenum wire discharges instantaneously when it is close to the workpiece, forming electric erosion processing, and finally cutting out the shape of the part according to the preset path.

[0003] For example, a kind of adjustable wire cutting device is disclosed in Chinese patent CN116252009B. When the wire storage cylinder is rotated to the preset position, the receiving pipe is in the open state, the end of the wire electrode is clamped and sent into it, and after the clamping assembly is separated from the receiving pipe, the clamping assembly restores the original clamping state to realize the clamping and fixing of the end of the wire electrode.

[0004] However, when processing high-hardness materials or viscous materials, the molybdenum wire wears out quickly and has a high risk of breaking. If the wire is full, it needs to be re-threaded after breaking, which takes a long time and is easy to waste. If the existing mechanism is not full, the fixed position of the molybdenum wire on the wire storage cylinder does not change, and during the wire arranging process, the wire storage cylinder may vibrate due to "tension sudden change" caused by insufficient wire amount in the local part. And in the processing process, it is relatively difficult to automatically recycle the waste wire when the wire breaks.

[0005] Therefore, the present application designs an adjustable wire cutting device and a method thereof to solve the above problems. SUMMARY

[0006] In view of the above-mentioned shortcomings of the prior art, the present application provides an adjustable wire cutting device and a method thereof.

[0007] To achieve the above purpose, the present application realizes the following technical scheme:

[0008] An adjustable wire cutting device, comprising a workbench, a wire feeding mechanism, a wire guiding mechanism, a moving carrier and a recycling module;

[0009] The wire feeding mechanism is installed on the left side of the workbench, and the moving carrier is installed on the right side of the workbench. A support table one and a support table two are fixedly installed on the workbench. The wire feeding mechanism is installed on the support table one, and the wire guiding mechanism is installed on the support table one and the support table two.

[0010] The wire feeding mechanism comprises a rotating assembly, a synchronous moving assembly, an adjustable wire clamping assembly and an automatic release assembly. The rotating assembly is installed on the workbench, and the synchronous moving assembly is installed on the rotating assembly. The adjustable wire clamping assembly for clamping the end of the molybdenum wire is installed on the rotating assembly, and the automatic release assembly is installed on the rotating assembly.

[0011] The adjustable wire clamping assembly comprises a plurality of arc-shaped mounting plates and wire clamping devices, one side of the rotating assembly is provided with the arc-shaped mounting plates, and one wire clamping device is arranged on each arc-shaped mounting plate; the arc-shaped mounting plates are provided in plurality, the wire clamping devices on different arc-shaped mounting plates are arranged at different positions; and one wire clamping device is arranged on the other side of the rotating assembly.

[0012] Further, the wire guiding mechanism comprises supporting frames, wire guiding assemblies, tensioning assemblies and conductive blocks, two supporting frames are fixedly installed on the supporting table two, the tensioning assemblies are installed on the supporting table two, the wire guiding assemblies are installed on the supporting frames and the supporting table one; the conductive blocks are fixedly installed on the supporting frames, and the supporting frames are further fixedly installed with nozzles for spraying working fluid.

[0013] Further, the wire guiding mechanism comprises supporting frames, wire guiding assemblies, tensioning assemblies and conductive blocks, two supporting frames are fixedly installed on the supporting table two, the tensioning assemblies are installed on the supporting table two, the wire guiding assemblies are installed on the supporting frames and the supporting table one; the conductive blocks are fixedly installed on the supporting frames, and the supporting frames are further fixedly installed with nozzles for spraying working fluid.

[0014] Further, the rotating assembly comprises a mounting table, a moving wire feeding frame, guide rails one, a wire cylinder and a wire feeding motor, the mounting table is fixedly installed on the workbench, the guide rails one are fixedly installed on the mounting table in symmetry, the moving wire feeding frame is located on the upper side of the mounting table, and the moving wire feeding frame is in limiting sliding connection with the guide rails one; the wire cylinder is rotatably installed on the moving wire feeding frame, the wire feeding motor is fixedly installed on the side of the moving wire feeding frame, and the output end of the wire feeding motor is fixedly connected with one end of the wire cylinder.

[0015] Further, the wire cylinder is provided with a mounting groove for accommodating the arc-shaped mounting plate, and the arc-shaped mounting plate is detachably installed in the mounting groove through screws.

[0016] Further, the synchronous moving assembly comprises a transmission inserting shaft, a driving gear, a speed regulation transmission assembly, a driven gear and a threaded rod, the other end of the wire cylinder is provided with a transmission inserting groove, the transmission inserting shaft is inserted into the transmission inserting groove, and the transmission inserting shaft is rotatably installed on the mounting table; the transmission inserting shaft is fixedly connected with the driving gear, the driven gear is fixedly connected with the threaded rod, and the threaded rod is rotatably installed on the mounting table; the speed regulation transmission assembly is installed on the mounting table; the speed regulation transmission assembly is composed of two gears with different sizes, the centers of the two gears are fixedly connected, and the outer gear is rotatably installed on the mounting table; the driving gear is in meshing connection with the inner gear, and the driven gear is in meshing connection with the outer gear.

[0017] Further, the wire clamping device comprises a mounting box, a fixed clamping plate, a movable clamping plate, a rotating rod one, a rotating rod two, a clamping spring and a magnetic block, one mounting box is fixedly installed on the wire cylinder, and the other mounting box is fixedly installed on the arc-shaped mounting plate; the inner side of the mounting box is fixedly installed with the fixed clamping plate, the movable clamping plate is rotationally connected with one end of the rotating rod one, and the other end of the rotating rod one is rotationally installed on the mounting box; the middle part of the rotating rod two is rotationally installed in the mounting box, and one end of the rotating rod two is rotationally connected with the movable clamping plate; the rotating rod one and the rotating rod two are parallel, and the length of the rotating rod two connecting the movable clamping plate and the mounting box is equal to the length of the rotating rod one; the other end of the rotating rod two is fixedly connected with one end of the clamping spring, and the other end of the clamping spring is fixedly connected with the mounting box; and the other end of the rotating rod two is further fixedly installed with the magnetic block.

[0018] Further, the wire collecting assembly comprises a recovery motor, a rotating disc, a fixed recovery plate, a guide rail three, an adjusting cylinder and a movable recovery plate, the recovery motor is fixedly installed on the support table one, the rotating disc is rotationally installed on the support table one, and the output end of the recovery motor is fixedly connected with the rotating disc; the fixed recovery plate is fixedly installed on the rotating disc, the guide rail three is fixedly installed on the rotating disc, the adjusting cylinder is fixedly installed on the rotating disc, the movable recovery plate is limitingly and slidably connected with the guide rail three, and the movable recovery plate is fixedly connected with the output end of the adjusting cylinder.

[0019] Further, the detection assembly comprises a position sensor and a detection block, the position sensor is fixedly installed on the mounting table, and the detection block is fixedly installed on the movable wire moving frame.

[0020] In order to better achieve the purpose of the application, the application further provides a wire cutting method, which comprises the following steps:

[0021] Step one: selecting an arc-shaped mounting plate with the position of the wire clamping device matched with the length of the molybdenum wire, and installing the arc-shaped mounting plate on the rotating assembly;

[0022] Step two: winding the molybdenum wire on the rotating assembly, and driving the molybdenum wire to move between the guide wire assemblies by the rotating assembly and the synchronous moving assembly, in the process, tensioning the molybdenum wire by the tensioning assembly to keep a certain tension of the molybdenum wire; moving the molybdenum wire between the guide wire assemblies by the rotating assembly and the synchronous moving assembly, applying pulse electricity to the molybdenum wire through the guide wire assembly, moving the workpiece by the movable stage while applying pulse electricity with opposite polarity to the movable stage, and discharging the molybdenum wire instantaneously when the molybdenum wire is close to the workpiece to form electro-erosion machining;

[0023] Step three: when the molybdenum wire is broken, detecting the relative position of the rotating assembly by the detection assembly to determine the length of the molybdenum wire on both sides of the broken point of the molybdenum wire; starting the wire collecting assembly on the side of the molybdenum wire with shorter length to collect the molybdenum wire on the side with shorter length, and collecting the molybdenum wire with longer length by the rotating assembly;

[0024] Step four: the molybdenum wire recovered by the wire collecting assembly is regarded as waste molybdenum wire; then it is determined whether the length and specification of the molybdenum wire recovered by the rotating assembly can continue to be used; if the molybdenum wire recovered by the rotating assembly can continue to be used, the other end of the molybdenum wire is re-threaded and fixed; if the molybdenum wire recovered by the rotating assembly cannot continue to be used, the molybdenum wire on the rotating assembly is removed.

[0025] Compared with the prior art, the beneficial effects of the present application are: 1. According to the processing piece, the appropriate molybdenum wire length is determined, and then the position of the wire clamp on the arc-shaped mounting plate is selected to match the arc-shaped mounting plate with the length of the molybdenum wire, so that the remaining part of the molybdenum wire can be uniformly and tightly wound on the rotating assembly after the two ends of the molybdenum wire are fixed by the arc-shaped mounting plate. Thus, when the molybdenum wire is worn out quickly and the risk of wire breakage is high, different lengths of molybdenum wire can be wound according to the situation, and the molybdenum wire is uniformly and tightly wound on the rotating assembly, so that the molybdenum wire is uniformly distributed on the rotating assembly. When the rotating assembly and the synchronous moving assembly drive the molybdenum wire to move, the tension around the molybdenum wire caused by uneven winding of the molybdenum wire is avoided. Then the arc-shaped mounting plate is installed on the rotating assembly.

[0026] 2. If the molybdenum wire is broken, the relative position of the rotating assembly is detected by the detection assembly to determine the length of the molybdenum wire on both sides of the broken point. The wire collecting assembly on the side with shorter molybdenum wire is started to recover the molybdenum wire on the side with shorter length, and the rotating assembly is used to recover the molybdenum wire with longer length, so as to facilitate the recovery of the broken molybdenum wire. The molybdenum wire recovered by the wire collecting assembly is regarded as waste molybdenum wire, and it is determined whether the length and specification of the molybdenum wire recovered by the rotating assembly can continue to be used. If the molybdenum wire recovered by the rotating assembly can continue to be used, the other end of the molybdenum wire is re-threaded and fixed. If the molybdenum wire recovered by the rotating assembly cannot continue to be used, the molybdenum wire on the rotating assembly is removed. Thus, when the wire is broken, the waste wire can be easily processed. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0028] Figure 1 A perspective view of the adjustable wire cutting device of the present application Figure 1 ;

[0029] Figure 2 A front view of the adjustable wire cutting device of the present application

[0030] Figure 3A left view of the adjustable wire cutting device of the present application;

[0031] Figure 4 A perspective view of the adjustable wire cutting device of the present application Figure 2 ;

[0032] Figure 5 A perspective view of the adjustable wire cutting device of the present application Figure 1 ;

[0033] Figure 6 A perspective view of the adjustable wire cutting device of the present application Figure 4 ;

[0034] Figure 7 A perspective view of the adjustable wire cutting device of the present application Figure 1 ;

[0035] Figure 8 A schematic view of the driving gear and its connecting structure;

[0036] Figure 9 A schematic view of the transmission insert shaft and its connecting structure;

[0037] Figure 10 A schematic view of the magnetic block and its connecting structure.

[0038] The reference numerals in the figures represent respectively:

[0039] 1, workbench; 11, support table one; 12, support table two; 2, wire moving mechanism; 21, rotating assembly; 211, mounting table; 212, mobile wire moving frame; 213, guide rail one; 214, wire drum; 215, wire moving motor; 22, synchronous moving assembly; 221, transmission shaft; 222, transmission slot; 223, driving gear; 224, speed regulation transmission assembly; 225, driven gear; 226, threaded rod; 23, adjustable wire clamping assembly; 231, mounting groove; 232, arc-shaped mounting plate; 233, wire clamping device; 2331, mounting box; 2332, fixed clamping plate; 2333, mobile clamping plate; 2334, rotating rod one; 2335, rotating rod two; 2336, clamping spring; 2337, magnetic block; 24, automatic release assembly; 241, fixed mounting frame; 242, mobile mounting frame; 243, annular electromagnet; 3, wire guiding mechanism; 31, support frame; 32, wire guiding assembly; 321, wire guiding wheel one; 322, wire guiding wheel two; 323, wire guiding wheel three; 324, wire guiding wheel four; 33, tensioning assembly; 331, hydraulic cylinder; 332, guide rail two; 333, mobile block; 334, tensioning wheel; 34, conductive block; 4, mobile workbench; 41, servo linear module one; 42, servo linear module two; 43, workpiece workbench; 44, clamp; 5, recycling module; 51, recycling motor; 52, rotating disc; 53, fixed recycling plate; 54, guide rail three; 55, adjusting cylinder; 56, mobile recycling plate; 58, position sensor; 59, detection block. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] In the following description, “left”, “right”, “front”, “back”, “up”, and “down” are oriented in the perspective of the front view.

[0042] Embodiment one: in some embodiments, referring to the accompanying drawings of the specification Figures 1-3 and Figure 7 An adjustable wire cutting device, comprising a workbench 1, a wire moving mechanism 2, a wire guiding mechanism 3, a mobile workbench 4, and a recycling module 5.

[0043] The wire moving mechanism 2 is installed on the left side of the workbench 1, and the moving carrier 4 is installed on the right side of the workbench 1; the support table one 11 and the support table two 12 are fixedly installed on the workbench 1; the wire moving mechanism 2 is installed on the support table one 11, and the wire guide mechanism 3 is installed on the support table one 11 and the support table two 12.

[0044] As shown in Figure 3 and Figure 7 , the wire moving mechanism 2 comprises a rotating assembly 21, a synchronous moving assembly 22, an adjustable wire clamping assembly 23 and an automatic release assembly 24; the rotating assembly 21 is installed on the workbench 1, and the synchronous moving assembly 22 is installed on the rotating assembly 21; the adjustable wire clamping assembly 23 for clamping the end of the molybdenum wire is installed on the rotating assembly 21, and the automatic release assembly 24 is installed on the rotating assembly 21.

[0045] The adjustable wire clamping assembly 23 comprises a plurality of arc-shaped mounting plates 232 and wire clamping devices 233; the arc-shaped mounting plates 232 are installed on one side of the rotating assembly 21, and one wire clamping device 233 is installed on each arc-shaped mounting plate 232; the arc-shaped mounting plates 232 are different in position of the wire clamping devices 233; and one wire clamping device 233 is installed on the other side of the rotating assembly 21.

[0046] As shown in Figure 2 , the wire guide mechanism 3 comprises a support frame 31, a wire guide assembly 32, a tensioning assembly 33 and a conductive block 34; two support frames 31 are fixedly installed on the support table two 12, the tensioning assembly 33 is installed on the support table two 12, and the wire guide assembly 32 is installed on the support frame 31 and the support table one 11; the conductive block 34 is fixedly installed on the support frame 31, and a nozzle for spraying working fluid is also fixedly installed on the support frame 31.

[0047] The nozzle is located on the right side of the wire guide assembly 32, and the nozzle is communicated with the pump and the wire moving mechanism 2 through a hose.

[0048] As shown in Figure 4 and Figure 6 , the recycling module 5 comprises a wire collecting assembly and a detection assembly; two wire collecting assemblies are installed on the support table one 11, and the detection assembly is installed on the rotating assembly 21.

[0049] In this embodiment, when the adjustable wire cutting device is working normally, the appropriate molybdenum wire length is determined according to the workpiece. Then, the position of the wire clamp 233 on the arc mounting plate 232 is selected to match the length of the molybdenum wire. After the two ends of the molybdenum wire are fixed by the arc mounting plate 232, the remaining part is evenly and tightly wound on the rotating component 21. Thus, when processing workpieces with fast molybdenum wire wear and high risk of wire breakage, different lengths of molybdenum wire can be wound according to the situation, and the molybdenum wire is evenly and tightly wound on the rotating component 21. This ensures that the molybdenum wire is evenly distributed on the rotating component 21, and avoids tension fluctuations caused by uneven winding of the molybdenum wire when the rotating component 21 and the synchronous moving component 22 drive the molybdenum wire to move. Then, the arc mounting plate 232 is installed on the rotating component 21.

[0050] The molybdenum wire is wound around the rotating assembly 21, with one end of the wire clamped by the wire clamp 233 on the rotating assembly 21 and the other end clamped by the wire clamp 233 on the arc-shaped mounting plate 232. The rotating assembly 21 and the synchronous moving assembly 22 work together to move the molybdenum wire between the wire guide assemblies 32. During this process, the wire is tensioned by the tensioning assembly 33 to maintain a certain tension. During processing, the rotating assembly 21 and the synchronous moving assembly 22 move the molybdenum wire between the wire guide assemblies 32. The wire guide assembly 32 applies pulse electricity to the molybdenum wire. The moving stage 4 moves the workpiece while applying pulse electricity with the opposite charge to that on the molybdenum wire. When the molybdenum wire approaches the workpiece, it discharges instantaneously, forming electro-erosion machining. The working fluid, such as mineral oil or mixed oil, is sprayed out through the nozzle to cool the molybdenum wire and wash away the debris, thus achieving wire cutting.

[0051] During processing, if the molybdenum wire breaks, the relative position of the rotating component 21 is detected by the detection component to determine the length of the molybdenum wire at both ends of the break. The wire take-up component on the shorter side of the molybdenum wire is activated to collect the shorter side of the molybdenum wire. At the same time, the rotating component 21 collects the longer side of the molybdenum wire, thus facilitating the recovery of the broken molybdenum wire. The molybdenum wire collected by the wire take-up component is treated as waste molybdenum wire. It is determined whether the length and specifications of the molybdenum wire collected by the rotating component 21 can be reused. If the molybdenum wire collected by the rotating component 21 can be reused, the other end of the molybdenum wire is re-threaded and fixed. If the molybdenum wire collected by the rotating component 21 cannot be reused, the molybdenum wire on the rotating component 21 is removed. This facilitates the processing of waste wire when it breaks.

[0052] Example 2: In some embodiments, as a preferred embodiment of the present invention, such as... Figures 7-10As shown, the rotating assembly 21 comprises a mounting table 211, a moving wire frame 212, a guide rail one 213, a wire drum 214 and a wire moving motor 215, the mounting table 211 is fixedly installed on the workbench 1, the mounting table 211 is symmetrically fixedly installed with the guide rail one 213, the moving wire frame 212 is located on the upper side of the mounting table 211, and the moving wire frame 212 is limitingly and slidably connected with the guide rail one 213; the wire drum 214 is rotatably installed on the moving wire frame 212, and the wire moving motor 215 is fixedly installed on the side of the moving wire frame 212, and the output end of the wire moving motor 215 is fixedly connected with one end of the wire drum 214;

[0053] The wire drum 214 is provided with an installation groove 231 for accommodating an arc-shaped installation plate 232, and the arc-shaped installation plate 232 is detachably installed in the installation groove 231 through screws;

[0054] The synchronous moving assembly 22 comprises a transmission plug shaft 221, a driving gear 223, a speed regulation transmission assembly 224, a driven gear 225 and a threaded rod 226, the other end of the wire drum 214 is provided with a transmission plug groove 222, the transmission plug shaft 221 is inserted into the transmission plug groove 222, and the transmission plug shaft 221 is rotatably installed on the mounting table 211; the transmission plug shaft 221 is fixedly connected with the driving gear 223, the driven gear 225 is fixedly connected with the threaded rod 226, and the threaded rod 226 is rotatably installed on the mounting table 211; the speed regulation transmission assembly 224 is installed on the mounting table 211; the speed regulation transmission assembly 224 is composed of two gears with different sizes, the centers of the two gears are fixedly connected, and the outer gear is rotatably installed on the mounting table 211; the driving gear 223 is in meshing connection with the inner gear, and the driven gear 225 is in meshing connection with the outer gear;

[0055] The wire clamping device 233 comprises a mounting box 2331, a fixed clamping plate 2332, a moving clamping plate 2333, a rotating rod one 2334, a rotating rod two 2335, a clamping spring 2336 and a magnetic block 2337, one mounting box 2331 is fixedly installed on the wire drum 214, and the other mounting box 2331 is fixedly installed on the arc-shaped installation plate 232; the inner side of the mounting box 2331 is fixedly installed with the fixed clamping plate 2332, the moving clamping plate 2333 is rotatably connected with one end of the rotating rod one 2334, and the other end of the rotating rod one 2334 is rotatably installed in the mounting box 2331; the middle part of the rotating rod two 2335 is rotatably installed in the mounting box 2331, and one end of the rotating rod two 2335 is rotatably connected with the moving clamping plate 2333; the rotating rod one 2334 and the rotating rod two 2335 are parallel, the length of the rotating rod two 2335 connecting the moving clamping plate 2333 and the mounting box 2331 is equal to the length of the rotating rod one 2334; the other end of the rotating rod two 2335 is fixedly connected with one end of the clamping spring 2336, the other end of the clamping spring 2336 is fixedly connected with the mounting box 2331; the other end of the rotating rod two 2335 is also fixedly installed with the magnetic block 2337;

[0056] The automatic release assembly 24 includes a fixed mounting bracket 241, a movable mounting bracket 242, and an annular electromagnet 243. The fixed mounting bracket 241 is fixedly mounted on the side of the movable wire feeder 212 away from the mounting groove 231. The movable mounting bracket 242 is detachably mounted on the side of the movable wire feeder 212 near the mounting groove 231 by screws. The annular electromagnet 243 is fixedly mounted on the fixed mounting bracket 241 and the movable mounting bracket 242 respectively.

[0057] like Figure 4 and Figure 5 As shown, the wire guide assembly 32 includes a first wire guide wheel 321, a second wire guide wheel 322, a third wire guide wheel 323, and a fourth wire guide wheel 324. There are two first wire guide wheels 321, one of which is rotatably mounted on the support platform 11, and the other is rotatably mounted on the support frame 31. The tensioning assembly 33 is located between the two first wire guide wheels 321. The second wire guide wheel 322 is rotatably mounted on the right end of the upper support frame 31. The third wire guide wheel 323 is rotatably mounted on the right end of the lower support frame 31. The fourth wire guide wheel 324 is rotatably mounted on the left end of the lower support frame 31 and the lower side of the support platform 11, respectively. One set of wire take-up assemblies is located between the first wire guide wheel 321 and the wire spool 214, and another set of wire take-up assemblies is located between the fourth wire guide wheels 324.

[0058] The tensioning assembly 33 includes a hydraulic cylinder 331, a second guide rail 332, a moving block 333, and a tensioning wheel 334. The hydraulic cylinder 331 is fixedly mounted on the second support platform 12, the second guide rail 332 is fixedly mounted on the second support platform 12, the moving block 333 is slidably connected to the second guide rail 332, and the moving block 333 is fixedly connected to the output end of the hydraulic cylinder 331. The tensioning wheel 334 is rotatably mounted on the moving block 333.

[0059] The molybdenum wire is wound on the wire spool 214. The two ends of the molybdenum wire are clamped by two sets of fixed clamping plates 2332 and movable clamping plates 2333 respectively. The middle part of the molybdenum wire passes through the first guide wheel 321, the tensioning wheel 334, the conductive block 34, the second guide wheel 322, the third guide wheel 323 and the fourth guide wheel 324.

[0060] like Figure 2 As shown, the movable platform 4 includes a servo linear module 1 41, a servo linear module 2 42, a workpiece platform 43, and a fixture 44. The servo linear module 1 41 is fixedly installed on the worktable 1. The servo linear module 2 42 is fixedly installed on the movable end of the servo linear module 1 41. The workpiece platform 43 is fixedly installed on the movable end of the servo linear module 2 42. Fixtures 44 for clamping workpieces are symmetrically fixedly installed on the workpiece platform 43.

[0061] Clamp 44 is electrically connected to an external power source;

[0062] The clamp 44 is composed of a clamp plate and a bolt, and the clamp plate is detachably installed on the workpiece table 43 through the bolt.

[0063] As shown in Figure 4 and Figure 6 The yarn collecting assembly includes a recovery motor 51, a rotating disc 52, a fixed recovery plate 53, a guide rail three 54, an adjusting cylinder 55, and a moving recovery plate 56. The recovery motor 51 is fixedly installed on the support table one 11, and the rotating disc 52 is rotatably installed on the support table one 11. The output end of the recovery motor 51 is fixedly connected with the rotating disc 52. The fixed recovery plate 53 is fixedly installed on the rotating disc 52. The guide rail three 54 is fixedly installed on the rotating disc 52. The adjusting cylinder 55 is fixedly installed on the rotating disc 52. The moving recovery plate 56 is limitingly and slidably connected with the guide rail three 54, and the moving recovery plate 56 is fixedly connected with the output end of the adjusting cylinder 55.

[0064] The detection assembly includes a position sensor 58 and a detection block 59. The position sensor 58 is fixedly installed on the installation table 211, and the detection block 59 is fixedly installed on the moving wire frame 212.

[0065] In the embodiment, when the wire feeding mechanism 2, the wire guiding mechanism 3, the moving carrier 4 and the recycling module 5 work normally, different arc-shaped mounting plates 232 are placed into the mounting grooves 231 according to needs, and fixed by screws; thus, the distance between the two mounting boxes 2331 is adjusted by replacing the arc-shaped mounting plates 232, so that the molybdenum wire is closely and uniformly distributed on the wire drum 214 when the wire of different lengths is wound; at the same time, the position of the moving mounting frame 242 is adjusted, and fixed by screws; the magnetic block 2337 is pressed or the annular electromagnet 243 on one side is started, the annular electromagnet 243 drives the magnetic block 2337 to move towards the moving clamp plate 2333; the magnetic block 2337 presses the rotating rod two 2335, thereby driving the moving clamp plate 2333 to move away from the fixed clamp plate 2332 under the limiting action of the rotating rod one 2334, and the clamping spring 2336 is compressed; the end of the molybdenum wire is placed between the fixed clamp plate 2332 and the mounting box 2331, and then the annular electromagnet 243 is turned off, the clamping spring 2336 is reset, the moving clamp plate 2333, the rotating rod one 2334 and the rotating rod two 2335 are reset, so that the moving clamp plate 2333 presses the molybdenum wire on the fixed clamp plate 2332; then the wire feeding motor 215 is started, the wire feeding motor 215 drives the wire drum 214 to rotate, and at the same time, the moving wire frame 212 is horizontally moved under the limiting action of the guide rail one 213 by the transmission shaft 221, the driving gear 223, the speed regulating transmission assembly 224, the driven gear 225 and the threaded rod 226, so that the molybdenum wire is uniformly and closely wound on the wire drum 214; then the other end of the molybdenum wire is wound around the wire guide wheel one 321, the conductive block 34, the wire guide wheel two 322, the wire guide wheel three 323 and the wire guide wheel four 324 in turn, and the other end of the molybdenum wire is clamped and fixed by another set of fixed clamp plates 2332 and moving clamp plates 2333; the hydraulic cylinder 331 drives the moving block 333 to vertically move under the limiting action of the guide rail two 332, thereby driving the tensioning wheel 334 to press the molybdenum wire between the wire guide wheel one 321, so as to realize the tensioning of the molybdenum wire; the molybdenum wire maintains uniform tension during work;

[0066] The workpiece is clamped by the clamp 44, and the clamp 44 is applied with pulse current opposite to the polarity of the molybdenum wire to the workpiece; the servo linear module one 41 and the servo linear module two 42 drive the workpiece carrier 43 and the clamp 44 to move horizontally, thereby driving the workpiece to move horizontally, so that different positions of the workpiece are close to the molybdenum wire, and the molybdenum wire is instantaneously discharged when close to the workpiece, thereby forming electro-erosion machining;

[0067] When the molybdenum wire is broken, the wire moving motor 215 stops, at this time, the adjusting cylinder 55 is started to drive the moving recovery plate 56 to move under the limiting action of the guide rail three 54, so that the moving recovery plate 56 clamps the molybdenum wire in cooperation with the fixed recovery plate 53; the position of the detection block 59 is detected by the position sensor 58, so as to determine the position of the moving wire frame 212 fixedly connected with the detection block 59 and the moving direction and moving distance of the moving wire frame 212 compared with the initial state, so as to determine the length of the molybdenum wire at both ends of the broken point; then the recovery motor 51 on the side of the shorter molybdenum wire is started, the recovery motor 51 drives the rotating disc 52 to rotate, so as to drive the fixed recovery plate 53, the guide rail three 54 and the moving recovery plate 56 to rotate, thereby winding the molybdenum wire; at the same time, the wire moving motor 215 drives the wire cylinder 214 to rotate, thereby winding the molybdenum wire on the side of the longer molybdenum wire; thereby realizing the recovery of the molybdenum wire at both ends of the broken point.

[0068] The adjusting cylinder 55 can be a double-stroke cylinder, and the inner sides of the fixed recovery plate 53 and the moving recovery plate 56 are provided with elastic clamping blocks. The fixed recovery plate 53 and the moving recovery plate 56 clamp the molybdenum wire, after the molybdenum wire is wound and recovered, the adjusting cylinder 55 drives the fixed recovery plate 53 and the moving recovery plate 56 to further approach, and the elastic clamping blocks are compressed, thereby facilitating the removal of the molybdenum wire outside the fixed recovery plate 53 and the moving recovery plate 56.

[0069] In some embodiments, as shown in FIG. 3, as a preferred embodiment of the present application, a wire cutting method of an adjustable wire cutting device comprises the following steps: Figures 1-10

[0070] Step one: select the arc-shaped mounting plate 232 with the position of the wire clamp 233 matched with the length of the molybdenum wire, and install the arc-shaped mounting plate 232 on the rotating assembly 21;

[0071] Step two: wind the molybdenum wire on the rotating assembly 21, the rotating assembly 21 and the synchronous moving assembly 22 drive the molybdenum wire to move between the guide wire assemblies 32, in this process, the molybdenum wire is tensioned by the tensioning assembly 33, so as to keep a certain tension of the molybdenum wire; the rotating assembly 21 and the synchronous moving assembly 22 drive the molybdenum wire to move between the guide wire assemblies 32, pulse electricity is applied to the molybdenum wire through the guide wire assemblies 32, the moving stage 4 drives the movement of the workpiece, and at the same time, pulse electricity opposite to the electricity on the molybdenum wire is applied to the moving stage 4, the molybdenum wire instantaneously discharges when close to the workpiece, thereby forming electro-erosion machining;

[0072] Step three: when the molybdenum wire is broken, the relative position of the rotating assembly 21 is detected by the detection assembly, so as to determine the length of the molybdenum wire at both ends of the broken point of the molybdenum wire; the wire recovery assembly on the side of the shorter molybdenum wire is started, the molybdenum wire on the side of the shorter length is recovered through the wire recovery assembly, and at the same time, the molybdenum wire of the longer length is recovered through the rotating assembly 21;

[0073] ​Step four: the molybdenum wire recovered by the wire collecting assembly is regarded as waste molybdenum wire; then it is judged whether the length and specification of the molybdenum wire recovered by the rotating assembly 21 can be continuously used; if the molybdenum wire recovered by the rotating assembly 21 can be continuously used, the other end of the molybdenum wire is re-threaded and fixed; if the molybdenum wire recovered by the rotating assembly 21 cannot be continuously used, the molybdenum wire on the rotating assembly 21 is removed.

[0074] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An adjustable wire cutting device, comprising a worktable (1), a wire feeding mechanism (2), a wire guiding mechanism (3), a moving platform (4), and a recovery module (5), characterized in that: The wire feeding mechanism (2) is installed on the left side of the workbench (1), and the movable platform (4) is installed on the right side of the workbench (1); a support platform one (11) and a support platform two (12) are fixedly installed on the workbench (1); the wire feeding mechanism (2) is installed on the support platform one (11), and the wire guiding mechanism (3) is installed on the support platform one (11) and the support platform two (12); The wire feeding mechanism (2) includes a rotating assembly (21), a synchronous moving assembly (22), an adjustable wire clamping assembly (23), and an automatic release assembly (24). The rotating assembly (21) is mounted on the worktable (1), and the synchronous moving assembly (22) is mounted on the rotating assembly (21). The adjustable wire clamping assembly (23) for clamping the end of the molybdenum wire is mounted on the rotating assembly (21), and the automatic release assembly (24) is mounted on the rotating assembly (21). The adjustable wire clamping assembly (23) includes multiple arc-shaped mounting plates (232) and wire clamps (233). An arc-shaped mounting plate (232) is installed on one side of the rotating assembly (21), and a wire clamp (233) is installed on the arc-shaped mounting plate (232). There are multiple arc-shaped mounting plates (232), and the positions of the wire clamps (233) on different arc-shaped mounting plates (232) are different. A wire clamp (233) is installed on the other side of the rotating assembly (21). The wire guide mechanism (3) includes a support frame (31), a wire guide assembly (32), a tensioning assembly (33), and a conductive block (34). Two support frames (31) are fixedly installed on a second support platform (12). The tensioning assembly (33) is installed on the second support platform (12). The wire guide assembly (32) is installed on the support frame (31) and the first support platform (11). The conductive block (34) is fixedly installed on the support frame (31). A nozzle for spraying working fluid is also fixedly installed on the support frame (31). The recycling module (5) includes a wire take-up assembly and a detection assembly. The two sets of wire take-up assemblies are installed on the support platform (11), and the detection assembly is installed on the rotating assembly (21). The rotating assembly (21) includes a mounting platform (211), a movable wire feeder (212), a guide rail (213), a wire spool (214), and a wire feed motor (215). The mounting platform (211) is fixedly mounted on the workbench (1). The guide rail (213) is symmetrically fixedly mounted on the mounting platform (211). The movable wire feeder (212) is located on the upper side of the mounting platform (211). The movable wire feeder (212) is slidably connected to the guide rail (213). The wire spool (214) is rotatably mounted on the movable wire feeder (212). The wire feed motor (215) is fixedly mounted on the side of the movable wire feeder (212). The output end of the wire feed motor (215) is fixedly connected to one end of the wire spool (214). The synchronous movement component (22) includes a transmission shaft (221), a drive gear (223), a speed regulating transmission component (224), a driven gear (225), and a threaded rod (226). A transmission slot (222) is provided at the other end of the threaded drum (214). The transmission shaft (221) is inserted into the transmission slot (222), and the transmission shaft (221) is rotatably mounted on the mounting platform (211). The transmission shaft (221) is fixedly connected to the drive gear (223), and the driven gear... The wheel (225) is fixedly connected to the threaded rod (226), and the threaded rod (226) is rotatably mounted on the mounting platform (211); a speed regulating transmission assembly (224) is mounted on the mounting platform (211); the speed regulating transmission assembly (224) consists of two gears of different sizes, the centers of the two gears are fixedly connected, and the outer gear is rotatably mounted on the mounting platform (211); the driving gear (223) meshes with the inner gear, and the driven gear (225) meshes with the outer gear.

2. The adjustable wire cutting device according to claim 1, characterized in that, The spool (214) has a mounting groove (231) for accommodating the arc-shaped mounting plate (232), which is detachably installed in the mounting groove (231) by screws.

3. The adjustable wire cutting device according to claim 2, characterized in that, The wire clamp (233) includes a mounting box (2331), a fixed clamping plate (2332), a movable clamping plate (2333), a first rotating rod (2334), a second rotating rod (2335), a clamping spring (2336), and a magnetic block (2337). One mounting box (2331) is fixedly mounted on the wire spool (214), and the other mounting box (2331) is fixedly mounted on the arc-shaped mounting plate (232). The fixed clamping plate (2332) is fixedly mounted on the inner side of the mounting box (2331). The movable clamping plate (2333) is rotatably connected to one end of the first rotating rod (2334), and the other end of the first rotating rod (2334) is rotatably mounted on the mounting box (2331). The middle part of the rotating rod (2335) is rotatably installed in the mounting box (2331), and one end of the rotating rod (2335) is rotatably connected to the movable clamp (2333); the rotating rod (2334) and the rotating rod (2335) are parallel, and the length of the rotating rod (2335) connecting the movable clamp (2333) and the mounting box (2331) is equal to the length of the rotating rod (2334); the other end of the rotating rod (2335) is fixedly connected to one end of the clamping spring (2336), and the other end of the clamping spring (2336) is fixedly connected to the mounting box (2331); a magnetic block (2337) is also fixedly installed on the other end of the rotating rod (2335).

4. The adjustable wire cutting device according to claim 3, characterized in that, The take-up assembly includes a take-up motor (51), a rotating disk (52), a fixed take-up plate (53), a guide rail (54), an adjusting cylinder (55), and a movable take-up plate (56). The take-up motor (51) is fixedly mounted on a support platform (11), and the rotating disk (52) is rotatably mounted on the support platform (11). The output end of the take-up motor (51) is fixedly connected to the rotating disk (52). The fixed take-up plate (53) is fixedly mounted on the rotating disk (52), the guide rail (54) is fixedly mounted on the rotating disk (52), and the adjusting cylinder (55) is fixedly mounted on the rotating disk (52). The movable take-up plate (56) is slidably connected to the guide rail (54) and the output end of the adjusting cylinder (55).

5. The adjustable wire cutting device according to claim 4, characterized in that, The detection assembly includes a position sensor (58) and a detection block (59). The position sensor (58) is fixedly mounted on the mounting platform (211), and the detection block (59) is fixedly mounted on the moving wire feeder (212).

6. A wire cutting method, utilizing the adjustable wire cutting device as described in claim 5, characterized in that, Includes the following steps: Step 1: Select an arc-shaped mounting plate (232) whose position of the wire clamp (233) matches the length of the molybdenum wire, and install the arc-shaped mounting plate (232) on the rotating assembly (21); Step 2: The molybdenum wire is wound around the rotating assembly (21). The rotating assembly (21) and the synchronous moving assembly (22) work together to move the molybdenum wire between the wire guide assembly (32). During this process, the molybdenum wire is tensioned by the tensioning assembly (33). The rotating assembly (21) and the synchronous moving assembly (22) move the molybdenum wire between the wire guide assembly (32). The wire guide assembly (32) applies a pulse current to the molybdenum wire. The moving stage (4) moves the workpiece while applying a pulse current opposite to the electrical charge on the moving stage (4). The molybdenum wire discharges instantaneously when it approaches the workpiece, forming an electro-erosion process. Step 3: When the molybdenum wire breaks, the relative position of the rotating component (21) is detected by the detection component to determine the length of the molybdenum wire at both ends of the break point; the wire take-up component on the shorter side of the molybdenum wire is activated to recycle the molybdenum wire on the shorter side, while the rotating component (21) recycles the longer molybdenum wire. Step 4: The molybdenum wire recovered by the wire take-up assembly is treated as waste molybdenum wire; then it is determined whether the length, specifications, etc. of the molybdenum wire recovered by the rotating assembly (21) can be reused; if the molybdenum wire recovered by the rotating assembly (21) can be reused, the other end of the molybdenum wire is re-threaded and fixed; if the molybdenum wire recovered by the rotating assembly (21) cannot be reused, the molybdenum wire on the rotating assembly (21) is removed.

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