Upper wire threading mechanism and wire feeding machine tool operation system

Abstract

The invention discloses an upper threading mechanism and a threading machine tool operation system. The upper threading mechanism comprises a base body, a first threading mechanism and a second threading mechanism, the second wire threading mechanism comprises a first working state and a second working state, wherein the first working state drives a second electrode wire guide channel of the second wire threading mechanism to ascend and enables the second electrode wire guide channel and a first electrode wire guide channel of the first wire threading mechanism to form a closed channel, and the second working state drives the second electrode wire guide channel to descend and feeds the electrode wires into a downstream mechanism.

Description

Technical Field

[0001] This article relates to mechanical equipment technology, especially to an upper wire threading mechanism and a wire-cutting machine tool operation system. Background Art

[0002] There are many wire threading methods in the existing medium-speed wire automatic wire threading machine tools, such as the telescopic guide tube method, the gear rack method and the linear module driven telescopic tube telescopic method, but the structures of these two wire threading methods are relatively complex and their reliability is average. Summary of the invention

[0003] The embodiment of the present application provides an upper wire threading mechanism and a wire-feeding machine tool operation system, which can realize automatic wire threading and has a simple structure and high reliability.

[0004] The embodiment of the present application includes an upper threading mechanism, including: matrix; A first wire threading mechanism, fixedly mounted on the substrate and comprising a first electrode wire guiding channel; a second wire threading mechanism, movably mounted on the base body and comprising a second electrode wire guide channel, wherein the second electrode wire guide channel is located downstream of the first electrode wire guide channel; The second wire threading mechanism includes a first working state in which the second electrode wire guide channel is driven to rise and the second electrode wire guide channel forms a closed channel with the first electrode wire guide channel, and a second working state in which the second electrode wire guide channel is driven to descend and the electrode wire is fed into a downstream mechanism.

[0005] In an exemplary embodiment, the second threading mechanism is provided with a slide rail fixedly mounted on the base, a slider sliding with the slide rail, and a driving device driving the slider to move up and down; The slider is provided with a second guide tube and a third guide tube located downstream of the second guide tube, and the conveying channels of the second guide tube and the third guide tube jointly form the second electrode wire guide channel; The second guide tube can form a closed channel with the first electrode wire guide channel in the first working state. The third guide tube is arranged downstream of the second guide tube and extends out of the lower end of the slider and is configured to transport the electrode wire to the downstream mechanism.

[0006] In an exemplary embodiment, the first wire threading mechanism comprises a guide wheel seat fixedly mounted on the base, a guide wheel provided on the guide wheel seat, and a conductive block, wherein the guide wheel can rotate on the guide wheel seat to convey the electrode wire, and the conductive block is configured to provide power to the electrode wire; The guide wheel seat is provided with a first electrode wire conveying channel and a first guide tube located downstream of the first electrode wire conveying channel, the first guide tube extends out of the lower end of the guide seat, and the first electrode wire conveying channel and the conveying channel of the first guide tube together form the first electrode wire guide channel.

[0007] In an exemplary embodiment, the driving device includes a vertical cylinder, a synchronizing member provided on the vertical air rod and capable of following the vertical cylinder to rise and fall, and the synchronizing member is connected to the slider and drives the slider to move; The slide rail and the vertical cylinder are arranged side by side on the left and right sides of the base.

[0008] In an exemplary embodiment, the second wire threading mechanism includes a rebound avoidance structure connecting the synchronizer and the slider, and the rebound avoidance structure includes a connecting shaft and an elastic element; One end of the connecting shaft is fixedly connected to one of the synchronous member and the slider, and the other end is movably sleeved to the other of the synchronous member and the slider; The elastic element is sleeved on the connecting shaft and has two ends respectively abutting against the synchronizer and the slider.

[0009] In an exemplary embodiment, the slider is provided with a support seat, a sliding seat slidably arranged at the bottom end of the support seat, a reset elastic element for driving the sliding seat to reset, and an induction limiter arranged at the support seat and cooperating with the sliding seat to trigger an induction signal, and the third guide tube is installed on the sliding seat.

[0010] In an exemplary embodiment, the second wire threading mechanism includes a first transmission wheel and a second transmission wheel provided on the slider and arranged on both sides of the outlet end of the first guide tube, and a first power mechanism driving the first transmission wheel and the second transmission wheel; The first power mechanism is configured to drive the first transmission wheel and the second transmission wheel to rotate when the first transmission wheel and the second transmission wheel are in close contact with each other, so as to transport the electrode wire that passes through the second electrode wire transport channel and extends between the first transmission wheel and the second transmission wheel to the second guide tube.

[0011] In an exemplary embodiment, the output end of the first guide tube includes a first side and a second side corresponding to the first transmission wheel and the second transmission wheel, respectively, and the first side and the second side are arc-shaped and adapted to the outer contours of the first transmission wheel and the second transmission wheel, respectively; The delivery channel of the first guide tube includes a lead-out section, wherein the lead-out section is open toward the first side and is closed toward the second side.

[0012] In an exemplary embodiment, the second wire threading mechanism includes a second power mechanism arranged on the slider, the second power mechanism is transmission-connected to at least one of the first transmission wheel and the second transmission wheel, and is configured to drive the first transmission wheel and the second transmission wheel to abut against and separate from each other.

[0013] An embodiment of the present application provides a wire cutting machine tool operation system, comprising: a main body, an upper wire threading mechanism, a lower wire threading mechanism and a wire clamping drum as described in any of the above embodiments, which are arranged on the main body.

[0014] The upper wire threading mechanism of the embodiment of the present application is provided with a fixed first wire threading mechanism and a movable second wire threading mechanism. The movable second wire threading mechanism can rise to form a closed channel with its own second electrode wire guide channel and the first electrode wire guide channel, thereby receiving the electrode wire delivered by the first wire threading mechanism, and can descend after receiving the electrode wire to deliver the electrode wire to the workpiece position, thereby realizing automatic wire threading, with a simple structure and high reliability.

[0015] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0017] Figure 1 A three-dimensional view of the upper threading mechanism of the embodiment of the present application from the front in one direction; Figure 2 This is a front view of the upper threading mechanism of the embodiment of the present application; Figure 3 for Figure 2 A cross-sectional view along the FF direction; Figure 4a-4b They are three-dimensional views of two sides of the first guide tube of the embodiment of the present application; Figure 4c is a cross-sectional view of a first guide tube according to an embodiment of the present application; Figure 4d It is a cross-sectional view of the assembly of the first guide tube, the second guide tube and the first transmission wheel according to the embodiment of the present application; Figure 5 A three-dimensional view of the front side of the wire threading mechanism in another direction of the embodiment of the present application; Figure 6 for Figure 2 The cross-sectional view along the GG direction; Figure 7 A three-dimensional view of the back side of the wire threading mechanism in the embodiment of the present application; Figure 8 This is a front view of the wire feeding system of the wire-cut machine tool according to an embodiment of the present application.

[0018] Reference numerals: upper wire threading mechanism-100; base-3; first wire threading mechanism-1; second wire threading mechanism-2; first electrode wire guide channel-101; second electrode wire guide channel-201; guide wheel seat-10; guide wheel-11; conductive block-12; first electrode wire conveying channel-13; first guide tube-14; conveying channel-140; lead-out section-141; bottom plate-30; insulating seat-31; slide rail-20; slide block-21; driving device-22; second guide tube-23; third guide tube-24; electrode wire nozzle-240; vertical cylinder-220; synchronous member-221; connecting shaft-25; elastic element Part-26; base-202; sliding seat-203; reset elastic element-204; inductive limit member-205; main body-2030; trigger part-2031; first transmission wheel-271; second transmission wheel-272; first power mechanism-273; second power mechanism-274; first gear-275; support-276; small shaft-277; second gear-278; bearing-279; water spray seat-5; linear bearing-50; water spray cap-51; wire feeding system of wire-cutting machine tool-1000; lower wire threading mechanism-200; wire clamping wire drum-300; wire guide wheel-500, servo tensioning mechanism-400. DETAILED DESCRIPTION

[0019] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0020] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0021] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0022] like Figure 1-Figure 8 As shown, an embodiment of the present application provides an upper wire threading mechanism 100, which is used to be installed in a wire feeding system 1000 of a wire-feeding machine tool, and cooperates with other equipment to realize automatic wire threading.

[0023] like Figure 1-Figure 3 As shown, the upper wire threading mechanism 100 of the embodiment of the present application includes a base body 3 , a first wire threading mechanism 1 fixedly mounted on the base body 3 , and a second wire threading mechanism 2 movably mounted on the base body 3 .

[0024] like Figure 3 As shown, the first wire threading mechanism 1 includes a first electrode wire guide channel 101, and the second wire threading mechanism 2 includes a second electrode wire guide channel 201, and the second electrode wire guide channel 201 is located downstream of the first electrode wire guide channel 101. The second wire threading mechanism 2 includes a first working state in which the second electrode wire guide channel 201 is driven to rise and the second electrode wire guide channel 201 forms a closed channel with the first electrode wire guide channel 101, and a second working state in which the second electrode wire guide channel 201 is driven to descend and the electrode wire is sent to a downstream mechanism (generally a lower wire threading mechanism 200).

[0025] It should be noted that: the second electrode wire guide channel 201 and the first electrode wire guide channel 101 described in the embodiment of the present application form a closed channel, which means that continuity is achieved on the conveying path of the electrode wire, which can be mutual contact connection, mutual sleeve connection, or connection with a certain gap, which is not limited here.

[0026] The upper wire threading mechanism 100 of the embodiment of the present application is provided with a fixed first wire threading mechanism 1 and a movable second wire threading mechanism 2. The movable second wire threading mechanism 2 can rise to form a closed channel with its own second electrode wire guide channel 201 and the first electrode wire guide channel 101, thereby receiving the electrode wire delivered by the first wire threading mechanism 2, and can descend after receiving the electrode wire to deliver the electrode wire to the workpiece position, thereby realizing automatic wire threading, with a simple structure and high reliability.

[0027] like Figure 2 , Figure 3 As shown, the first wire threading mechanism 1 includes a guide wheel seat 10 fixedly mounted on the base 3, a guide wheel 11 and a conductive block 12 arranged on the guide wheel seat 10. The guide wheel 11 is supported on the guide wheel seat 10 and can rotate on the guide wheel seat 10 to convey the electrode wire (not shown), and the conductive block 12 is arranged to provide power to the electrode wire. Among them, the conductive block 12 may not be arranged on the guide wheel seat 10, which is not limited here.

[0028] The first wire threading mechanism 1 includes a first electrode wire conveying channel 13 provided on the guide wheel seat 10, and a first guide tube 14 provided on the guide seat 10 and extending out of the lower end of the guide seat 10. The first guide tube 14 is located downstream of the first electrode wire conveying channel 13, and the conveying channel 140 of the first guide tube 14 and the first electrode wire conveying channel 13 together form a first electrode wire guide channel 101. The inlet end of the first guide tube 14 is in a flared shape toward the first electrode wire conveying channel 13, so as to receive the electrode wire conveyed by the first electrode wire conveying channel 13.

[0029] like Figure 1 , Figure 2 As shown, the base 3 is elongated in the height direction, and includes a bottom plate 30 and an insulating seat 31, on which a guide wheel seat 10 is mounted. The center of the first guide tube 14 hole is tangent to the groove bottom of the guide wheel 11, and the center of the first guide tube 14 coincides with the surface of the conductive block 12, so as to realize power supply to the electrode wire without affecting the transportation of the electrode wire.

[0030] like Figure 1-Figure 3As shown, the second wire threading mechanism 2 is provided with a slide rail 20 fixedly mounted on the base 3, a slider 21 sliding with the slide rail 20, and a driving device 22 driving the slider 21 to move up and down. The second wire threading mechanism 2 includes a second guide tube 23 and a third guide tube 24 provided on the slider 20, and the third guide tube 24 is located downstream of the second guide tube 23. The conveying channel 230 of the second guide tube 23 and the conveying channel of the third guide tube 24 jointly form a second electrode wire guide channel 201. The second guide tube 23 and the third guide tube 24 can be split or integrated.

[0031] The second guide tube 23 is in the first working state (refer to Figure 1 The third guide tube 24 is arranged downstream of the second guide tube 23 and extends out of the lower end of the slider 20 and is arranged to convey the electrode wire to the downstream mechanism. A detachable electrode wire nozzle 240 is arranged at the lower end of the third guide tube 24. The electrode wire nozzle 240 in this embodiment is bonded to the third guide tube 24 by an adhesive and can be easily replaced by heating, which is convenient for later maintenance.

[0032] like Figure 1 As shown, the driving device 22 includes a vertical cylinder 220, a synchronous member 221 disposed on the vertical cylinder 220 and capable of following the vertical cylinder 220 to rise and fall, and the synchronous member 221 is connected to the slider 21. The slide rail 20 extends along the height direction of the base 3, and is arranged side by side with the vertical cylinder 220 on the left and right sides of the base 3. The vertical cylinder 220 in this embodiment adopts a rodless cylinder with a simple structure.

[0033] like Figure 1 , Figure 2 As shown, the second threading mechanism 2 includes a rebound avoidance structure connecting the synchronizer 221 and the slider 20, and the rebound avoidance structure includes a connecting shaft 25 and an elastic element 26. Among them, one end of the connecting shaft 25 is fixedly connected to one of the synchronizer 221 and the slider 21, and the other end is movably sleeved with the other of the synchronizer 221 and the slider 21; the elastic element 26 is sleeved on the connecting shaft 25 and the two ends thereof are respectively against the synchronizer 221 and the slider 21.

[0034] In this embodiment, the upper end of the connecting shaft 25 is movably sleeved with the synchronous member 221, and the lower end of the connecting shaft 25 is fixedly connected with the slider 21. When the electrode wire nozzle 240 of the third guide tube 24 touches the workpiece, the rebound avoidance structure can make the third guide tube 24 of the second wire threading mechanism 2 rebound a certain distance, thereby preventing the third guide tube 24 from hard contact with the workpiece and causing damage to the electrode wire nozzle 240 of the third guide tube 24, and also preventing the vertical cylinder 220 from continuing to descend and damaging the third guide tube 23 and the workpiece.

[0035] like Figure 3As shown, the slider 20 is provided with a base 202, a sliding seat 203 slidably provided in the base 202, a resetting elastic element 204 driving the sliding seat 203 to reset, and a sensing limiter 205 provided on the base 202 and cooperating with the sliding seat 203 to trigger the sensing signal, wherein the third guide tube 24 is installed on the sliding seat 203. The sliding seat 203 includes a main body 2030 slidably installed with the base 202, and a triggering part 2031 provided on the side of the main body 2030 and cooperating with the sensing limiter 205 to trigger the sensing signal.

[0036] When the third guide tube 24 moves downward and the electrode wire nozzle 240 of the third guide tube 24 touches an obstacle (generally a workpiece to be processed), the sliding seat 203 moves upward under the reaction force and senses the inductive limiter 205. At this time, the reset elastic element 204 is compressed, and the inductive limiter 205 sends a stop descending signal to the driving device 22; conversely, when the force disappears, the reset elastic element drives the sliding seat 203 to reset.

[0037] The setting of the inductive limiter 205 in the embodiment of the present application can prevent the third guide tube 24 from hard contact with the workpiece, causing damage to the electrode wire nozzle 240 of the third guide tube 24, and can also prevent the vertical cylinder 220 from continuing to descend and damaging the third guide gate 23 and the workpiece.

[0038] like Figure 1 , Figure 6 , Figure 7 As shown, the second wire threading mechanism 2 includes a first and a second transmission wheel 271, 272 provided on the slider 20 and arranged on both sides of the second guide tube 22, and a first power mechanism 273 that drives the first and the second transmission wheels 271, 272 to rotate. The first power mechanism 273 is configured to drive the first and the second transmission wheels 271, 272 of the master and slave transmission wheels to rotate when the master and the slave transmission wheels 271, 272 are pressed against each other, so as to transport the electrode wire that passes through the first electrode wire delivery channel 101 and extends between the first and the second transmission wheels 271, 272 to the second guide tube 23. One of the first and the second transmission wheels 271, 272 is a main transmission wheel, and the other is a slave transmission wheel.

[0039] like Figure 1 , Figure 7 As shown, the second threading mechanism 2 includes a second power mechanism 274 arranged on the slider 20, and the second power mechanism 274 is transmission-connected to at least one of the master and slave transmission wheels 271, 272, and is configured to drive the master and slave transmission wheels 271, 272 to abut against and separate from each other.

[0040] The first power mechanism 273 is a driving motor, on which the first transmission wheel 271 and the first gear 275 are installed. The second power mechanism 274 is a transverse cylinder and is installed with a support 276, a small shaft 277, a second transmission wheel 272, a second gear 278, and a bearing 279. The transverse cylinder can drive the second transmission wheel 272 and the second gear 278 to move left and right, thereby pressing and meshing with the first transmission wheel 272 and the second gear 278 installed on the driving motor.

[0041] like Figure 4a-4d As shown, the output end of the first guide tube 14 includes a first side and a second side corresponding to the first transmission wheel 271 and the second transmission wheel 272, respectively, and the first side and the second side are arc-shaped respectively adapted to the outer contours of the first transmission wheel 271 and the second transmission wheel 272, so that the first transmission wheel 271 and the second transmission wheel 271 can be tightly pressed against each other. Among them, the conveying channel 140 of the first guide tube 14 includes an outlet section 141, and the outlet section 141 has a certain length. The outlet section 141 is open toward the first side, and is closed toward the second side.

[0042] When the first transmission wheel 271 and the second transmission wheel 272 are pressed against each other to transmit the electrode wire, the arc-shaped design of the lead-out section 141 can make the lead-out section 141 and the first transmission wheel 271 and the second transmission wheel 272 closer together, thereby preventing the electrode wire from deviating from the transmission path on the transmission path of the electrode wire. At the same time, the lead-out section 141 is designed to be open on one side, which can increase the receiving length of the electrode wire from the first guide tube 14 by the first transmission wheel 271, thereby further preventing the electrode wire from deviating from the output path in the connecting section between the first guide tube 14 and the first transmission wheel 271 and the second transmission wheel 272, and also facilitates the first transmission wheel 271 to clamp the electrode wire.

[0043] like Figure 2 , Figure 3 As shown, a water spray seat 5 is installed at the lower part of the slider 21, and a linear bearing 50 and a water spray cap 51 are installed in the water spray seat 5. The linear bearing 50 is concentric with the third guide tube 24 and parallel to the slide rail 20.

[0044] When the upper wire threading mechanism 100 of the embodiment of the present application is working, the vertical cylinder 220 is started, driving the synchronous member 221 to move upward, and the synchronous member 221 drives the slider 21 to rise, so that the first guide tube 14 and the second guide tube 23 form a closed channel. Then, the electrode wire is inserted into the guide wheel seat 10, passing through the guide wheel 11 and the conductive block 12, the first guide tube 14, the second guide tube 23, and the third guide tube 24. When the automatic wire threading instruction is executed, the horizontal cylinder 274 pushes the second transmission wheel 272, the first transmission wheel 271 and the second transmission wheel 272 press the electrode wire, and the vertical cylinder 220 moves downward. When the electrode wire nozzle 240 touches the workpiece, the inductive limiter 205 sends a signal to the vertical cylinder 220 to the vertical cylinder 220, and the vertical cylinder 220 stops moving downward. The drive motor 273 drives the first transmission wheel 271 to rotate, and is linked with the second transmission wheel 272 through the second gear 278 to send the electrode wire into the lower wire threading mechanism 200. After the wire threading is completed, the horizontal cylinder 274 is retracted, and the vertical cylinder 220 returns upward to the starting position, and the wire threading action is completed.

[0045] like Figure 8 As shown, the embodiment of the present application also provides a wire cutting machine tool operation system 1000, including: a main body, an upper wire threading mechanism 100, a lower wire threading mechanism 200, a wire clamping wire drum 300, a plurality of wire cutting guide wheels 500, a servo tensioning mechanism 400, etc., which are arranged on the main body as described in any of the above embodiments.

[0046] When the wire-cutting machine tool operation system 1000 of the embodiment of the present application is threaded, first, manual preparation work is performed to pass the electrode wire head wound on the wire clamping wire drum 300 through multiple guide wheels 500 and the servo tensioning mechanism 400 into the upper threading mechanism 100. When threading the wire automatically, the upper threading mechanism 100 clamps the electrode wire, and the second threading mechanism 21 moves upward so that the first guide tube 14 of the first threading mechanism 21 and the second guide tube 23 of the second threading mechanism 22 contact each other to form a closed channel. The upper threading mechanism 100 sends the electrode wire to the lower threading mechanism 200, and the lower threading mechanism 200 sends the wire head to the lower part of the wire clamping wire drum 300. The wire drum clamps the electrode wire with the wire head 300, and the threading action is completed.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0049] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An upper threading mechanism, characterized in that: include: matrix; A first wire threading mechanism, fixedly mounted on the substrate and comprising a first electrode wire guiding channel; a second wire threading mechanism, movably mounted on the base body and comprising a second electrode wire guide channel, wherein the second electrode wire guide channel is located downstream of the first electrode wire guide channel; The second wire threading mechanism includes a first working state in which the second electrode wire guide channel is driven to rise and the second electrode wire guide channel forms a closed channel with the first electrode wire guide channel, and a second working state in which the second electrode wire guide channel is driven to descend and the electrode wire is fed into a downstream mechanism.

2. The upper threading mechanism according to claim 1, characterized in that: The second threading mechanism is provided with a slide rail fixedly mounted on the base, a slider sliding in cooperation with the slide rail, and a driving device driving the slider to move up and down; The slider is provided with a second guide tube and a third guide tube located downstream of the second guide tube, and the conveying channels of the second guide tube and the third guide tube jointly form the second electrode wire guide channel; The second guide tube can form a closed channel with the first electrode wire guide channel in the first working state, and the third guide tube extends out of the lower end of the slider.

3. The upper threading mechanism according to claim 2, characterized in that: The first wire threading mechanism comprises a guide wheel seat fixedly mounted on the base, a guide wheel arranged on the guide wheel seat, and a conductive block, wherein the guide wheel can rotate on the guide wheel seat to convey the electrode wire, and the conductive block is arranged to provide power to the electrode wire; The guide wheel seat is provided with a first electrode wire conveying channel and a first guide tube located downstream of the first electrode wire conveying channel, the first guide tube extends out of the lower end of the guide seat, and the first electrode wire conveying channel and the conveying channel of the first guide tube together form the first electrode wire guide channel.

4. The upper threading mechanism according to claim 2, characterized in that: The driving device includes a vertical cylinder, a synchronous member arranged on the vertical air rod and capable of following the vertical cylinder to rise and fall, and the synchronous member is connected to the slider and drives the slider to move; The slide rail and the vertical cylinder are arranged side by side on the left and right sides of the base.

5. The upper threading mechanism according to claim 4, characterized in that: The second wire threading mechanism comprises a rebound avoidance structure connecting the synchronizer and the slider, and the rebound avoidance structure comprises a connecting shaft and an elastic element; One end of the connecting shaft is fixedly connected to one of the synchronous member and the slider, and the other end is movably sleeved to the other of the synchronous member and the slider; The elastic element is sleeved on the connecting shaft and has two ends respectively abutting against the synchronizer and the slider.

6. The upper threading mechanism according to claim 2, characterized in that: The slider is provided with a support seat, a sliding seat slidably arranged at the bottom of the support seat, a reset elastic element driving the sliding seat to reset, and an induction limiter arranged at the support seat and cooperating with the sliding seat to trigger an induction signal, and the third guide tube is installed on the sliding seat.

7. The upper threading mechanism according to claim 3, characterized in that: The second wire threading mechanism includes a first transmission wheel and a second transmission wheel which are arranged on the slider and on both sides of the outlet end of the first guide tube, and a first power mechanism which drives the first transmission wheel and the second transmission wheel to rotate; The first power mechanism is configured to drive the first transmission wheel and the second transmission wheel to rotate when the first transmission wheel and the second transmission wheel are in close contact with each other, so as to transport the electrode wire that passes through the second electrode wire transport channel and extends between the first transmission wheel and the second transmission wheel to the second guide tube.

8. The upper threading mechanism according to claim 7, characterized in that: The output end of the first guide tube comprises a first side and a second side corresponding to the first transmission wheel and the second transmission wheel respectively, and the first side and the second side are arc-shaped respectively adapted to the outer contours of the first transmission wheel and the second transmission wheel; The delivery channel of the first guide tube includes a lead-out section, the lead-out section is open toward the first side, and the lead-out section is closed toward the second side.

9. The upper threading mechanism according to claim 8, characterized in that: The second wire threading mechanism includes a second power mechanism arranged on the slider, the second power mechanism is transmission-connected to at least one of the first transmission wheel and the second transmission wheel, and is configured to drive the first transmission wheel and the second transmission wheel to abut against and separate from each other.

10. A wire cutting machine tool operation system, characterized in that: include: A main body, an upper wire threading mechanism, a lower wire threading mechanism and a wire clamping tube as described in any one of claims 1 to 9 and arranged on the main body.

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