Wire cutting machine capable of efficiently clamping and disassembling wires

Abstract

The invention discloses an efficient wire clamping and detaching wire cutting machine which comprises a winding and unwinding mechanism, the winding and unwinding mechanism is used for winding and unwinding an electrode wire and has a first state and a second state which can be switched mutually, when the winding and unwinding mechanism is in the first state, the movable end of the electrode wire is clamped and fixed by the winding and unwinding mechanism, and when the winding and unwinding mechanism rotates, the electrode wire can be wound on the outer wall of the winding and unwinding mechanism; and when the winding and unwinding mechanism is switched to the second state, the coiled electrode wire wound on the outer wall of the winding and unwinding mechanism can be separated from the outer wall of the winding and unwinding mechanism in a non-unwinding state. By the adoption of the technical scheme, automatic wire clamping, winding and unwinding of the electrode wire are achieved, and the wire disassembling efficiency is remarkably improved; the winding and unwinding mechanism is matched with the electrode wire which is long enough, different electrode wire sections can be used for alternately carrying out roughing cutting and fine trimming cutting, and roughing and fine trimming integration and continuous automatic cutting operation are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire cutting equipment, and particularly relates to a wire cutting machine and a cutting method with efficient wire clamping and wire removal. Background Art

[0002] Numerical control wire cutting machines are generally divided into three categories: fast wire cutting machines, medium wire cutting machines, and slow wire cutting machines; taking the fast wire cutting machine as an example, the wire electrode moves at a high speed in a reciprocating motion, and the wire running speed is 8m / s to 10m / s. Its working principle is as follows: the wire electrode passes through a small hole pre-drilled in the workpiece, and is driven by the wire drum to move reciprocally and alternately through the guide wheel. The workpiece is installed on the conductive workbench through an insulating plate, and the conductive workbench moves in the X and Y coordinate directions in the horizontal plane according to the given control program respectively to synthesize any plane curve trajectory. The pulse power supply applies a pulse voltage to the wire electrode and the workpiece. The wire electrode is connected to the negative pole of the pulse power supply, and the workpiece is connected to the positive pole of the pulse power supply. When an electric pulse comes, a spark discharge occurs between the wire electrode and the workpiece. The central temperature in the discharge channel can instantaneously reach above 10,000 °C. The high temperature melts the workpiece metal, and even a small amount of it is vaporized. The high temperature also causes part of the working fluid between the wire electrode and the workpiece to be vaporized. These vaporized working fluids and metal vapors instantaneously expand rapidly and have the characteristics of explosion. This thermal expansion and local micro-explosion eject the melted and vaporized metal materials to achieve electro-erosion cutting processing of the workpiece material.

[0003] The invention patent with the publication number CN116252009B discloses a wire cutting device with automatic wire threading, which realizes the automatic feeding, clamping and removal of the wire electrode, and realizes automated operation; the invention patent application with the publication number CN117943645A discloses an automatic wire connecting, threading and removing method for a wire cutting device, which realizes automatic wire connecting, automatic wire threading and automatic wire removal.

[0004] At present, there are more and more wire cutting machines with automatic wire threading on the market, and they have gradually been recognized by the majority of users, and the market prospect is getting better and better. However, when removing the wire of the current wire cutting machine, the wire drum needs to be rotated to the preset origin, and all the electrode wires wound on its outer wall need to be unwound before the wire can be removed, which greatly affects the cutting efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a wire cutting machine with efficient wire clamping and wire removal, which can realize rapid wire removal, and thus solve the technical problems mentioned in the background art.

[0006] One aspect of the present invention provides a wire cutting machine for efficiently clamping and unclamping wire. A wire cutting machine for efficiently clamping and unclamping wire includes a winding and unwinding mechanism for winding and unwinding the electrode wire, which has a first state and a second state that can be switched with each other. When the winding and unwinding mechanism is in the first state, the movable end of the electrode wire is clamped and fixed by the winding and unwinding mechanism, and when the winding and unwinding mechanism rotates, the electrode wire can be wound around its outer wall. When the winding and unwinding mechanism is switched to the second state, the coiled electrode wire wound around the outer wall of the winding and unwinding mechanism can be detached from the outer wall of the winding and unwinding mechanism without unwinding.

[0007] Further, the winding and unwinding mechanism includes a winding and unwinding part, a cutting part, and a first motor for driving the winding and unwinding part to rotate. When the winding and unwinding mechanism is in the first state, the movable end of the electrode wire is clamped and fixed by the winding and unwinding part, and when the winding and unwinding part rotates, the electrode wire can be wound around its outer wall. When the winding and unwinding mechanism is switched to the second state, the cutting part can act on the winding and unwinding part so that the coiled electrode wire wound around the outer wall of the winding and unwinding part is cut and detached from the outer wall of the winding and unwinding mechanism without unwinding.

[0008] Further, the winding and unwinding mechanism includes a first winding and unwinding part, a second winding and unwinding part, and a clutch driving mechanism for driving the first winding and unwinding part and the second winding and unwinding part to clamp / separate. When the clutch driving mechanism drives the first winding and unwinding part and the second winding and unwinding part to clamp, it is in the first state, and when the clutch driving mechanism drives the first winding and unwinding part and the second winding and unwinding part to separate, it is in the second state.

[0009] Further, when the winding and unwinding mechanism is in the first state, the first winding and unwinding part and the second winding and unwinding part are clamped to form a wire storage groove for winding the electrode wire.

[0010] Further, the wire storage groove gradually deepens from both sides to the middle or gradually deepens from one side to the other side, and the clamping part of the first winding and unwinding part and the second winding and unwinding part is located at the deepest part of the wire storage groove, so that the coiled electrode wire can be detached from the wire storage groove when the first winding and unwinding part and the second winding and unwinding part are separated.

[0011] Further, the winding and unwinding mechanism includes a first motor for driving the first winding and unwinding part and the second winding and unwinding part to rotate synchronously.

[0012] Further, it includes:

[0013] A wire storage mechanism that can rotate forward or backward to wind and unwind the electrode wire;

[0014] A dynamic wire storage amount adjusting mechanism for obtaining the difference between the winding and unwinding speed of the wire storage mechanism and the actual speed at which the electrode wire is clamped and fed by the wire clamping and feeding mechanism, and adjusting the speed of the wire storage mechanism and / or the wire clamping and feeding mechanism so that the wire storage amount on the dynamic wire storage amount adjusting mechanism remains within a preset range;

[0015] A wire feeding mechanism for feeding the electrode wire forward or backward;

[0016] An upper wire threading mechanism located above the workpiece to be machined;

[0017] A lower wire threading mechanism located below the workpiece to be machined;

[0018] The electrode wire is unrolled from the wire storage mechanism and sequentially passes through the wire storage amount dynamic adjustment mechanism, the upper wire threading mechanism, the workpiece, and the lower wire threading mechanism. The movable end of the electrode wire is clamped and fixed by the winding and unwinding mechanism and is wound and collected by rotating the winding and unwinding mechanism; the wire storage mechanism and the winding and unwinding mechanism can rotate forward or reverse synchronously to realize the bidirectional reciprocating wire walking or unidirectional wire walking of the electrode wire.

[0019] Further, the electrode wire includes a first electrode wire for rough cutting and a second electrode wire for finishing cutting, and the first electrode wire and the second electrode wire are different segments of the same roll of electrode wire.

[0020] Further, the lower wire threading mechanism is provided with a transfer mechanism for transferring the movable end of the electrode wire to the winding and unwinding mechanism so that the movable end of the electrode wire is clamped and fixed by the winding and unwinding mechanism. The transfer mechanism includes a fixedly arranged wire threading conduit, or a transfer tube capable of translating, or a clamping assembly capable of translating.

[0021] Preferably, the transfer mechanism includes a fixedly arranged wire threading conduit, and the wire threading conduit extends from the lower wire threading mechanism to the side of the winding and unwinding mechanism so that the movable end of the electrode wire can be clamped and fixed by the winding and unwinding mechanism after passing through the wire threading conduit.

[0022] Further, a wire arranging mechanism is provided between the transfer mechanism and the winding and unwinding mechanism, and the wire arranging mechanism can cooperate with the winding and unwinding mechanism to make the electrode wire evenly arranged when wound around the outer wall of the winding and unwinding mechanism.

[0023] Further, a wire cutting mechanism is included for cutting the electrode wire.

[0024] Further, a straightening mechanism is included for straightening the cut-off part of the electrode wire

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. When the winding and unwinding mechanism is in the first state, the movable end of the electrode wire can be clamped and fixed, and the electrode wire can be wound when rotating, realizing the automatic wire clamping and winding and unwinding of the electrode wire;

[0027] 2. When the winding and unwinding mechanism is in the second state, the coiled electrode wire wound around its outer wall can be directly detached without unwinding to the wire clamping point, significantly improving the wire removal efficiency.

[0028] 3. After a certain section of the electrode wire is cut a preset number of times, it can directly fall off at the winding and unwinding mechanism, and a new section of the electrode wire can continue to be automatically clamped, realizing continuous automatic cutting operations.

[0029] 4. By adopting this winding and unwinding mechanism and cooperating with an electrode wire of sufficient length, roughing cutting and finishing cutting can be alternately carried out using different electrode wire segments, realizing the integration of roughing and finishing, and freely switching and alternating according to processing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0031] Figure 1 Schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0032] Figure 2 Schematic diagram of the structure of the winding and unwinding mechanism in Embodiment 1 of the present invention;

[0033] Figure 3 Schematic diagram of the wire clamping of the transfer pipe in Embodiment 1 of the present invention;

[0034] Figure 4 Schematic diagram ① (without electrode wire) of the first state of the winding and unwinding mechanism in Embodiment 2 of the present invention;

[0035] Figure 5 is Figure 4 Partial enlarged schematic diagram of a;

[0036] Figure 6 Schematic diagram ② (winding the electrode wire) of the first state of the winding and unwinding mechanism in Embodiment 2 of the present invention;

[0037] Figure 7 is Figure 6 Partial enlarged schematic diagram of b;

[0038] Figure 8 Schematic diagram of the second state of the winding and unwinding mechanism in Embodiment 2 of the present invention.

[0039] Description of the reference numerals in the drawings: 1 - winding and unwinding mechanism; 2 - wire storage mechanism; 3 - dynamic wire storage amount adjustment mechanism; 4 - pinch feed mechanism; 5 - workpiece; 6 - upper wire threading mechanism; 7 - lower wire threading mechanism; 8 - electrode wire; 9 - wire cutting mechanism; 10 - straightening mechanism; 11 - winding and unwinding part; 12 - cutting part; 13 - first motor; 14 - transfer pipe; 15 - elastic clip; 16 - wire arranging mechanism; 17 - first winding and unwinding part; 18 - second winding and unwinding part; 19 - clutch drive mechanism; 20 - wire storage groove. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions conflicts or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0043] Embodiment 1: Refer to Figures 1 to 3 , one aspect of this embodiment discloses a wire cutting machine for efficiently clamping and removing wires, including a winding and unwinding mechanism 1, a wire storage mechanism 2, a dynamic wire storage amount adjustment mechanism 3, a pinch feed mechanism 4, an upper wire threading mechanism 6 located above the workpiece 5 to be processed, a lower wire threading mechanism 7 located below the workpiece 5 to be processed, a wire cutting mechanism 9 for cutting the electrode wire 8, and a straightening mechanism 10 for straightening the cut part of the electrode wire 8.

[0044] The winding and unwinding mechanism 1 is used for winding and unwinding the electrode wire 8, and has a first state and a second state that can be switched with each other. When the winding and unwinding mechanism 1 is in the first state, the movable end of the electrode wire 8 is clamped and fixed by the winding and unwinding mechanism 1. When the winding and unwinding mechanism 1 rotates, the electrode wire 8 can be wound around its outer wall. When the winding and unwinding mechanism 1 is switched to the second state, the coiled electrode wire 8 wound around the outer wall of the winding and unwinding mechanism 1 can be detached from the outer wall of the winding and unwinding mechanism 1 without unwinding.

[0045] Specifically, the winding and unwinding mechanism 1 includes a winding and unwinding part 11, a cutting part 12, and a first motor 13 that drives the winding and unwinding part 11 to rotate. When the winding and unwinding mechanism 1 is in the first state, the movable end of the electrode wire 8 is clamped and fixed by the winding and unwinding part 11. When the winding and unwinding part 11 rotates, the electrode wire 8 can be wound around its outer wall. When the winding and unwinding mechanism 1 is switched to the second state, the cutting part 12 can act on the winding and unwinding part 11, so that the coiled electrode wire 8 wound around the outer wall of the winding and unwinding part 11 is cut off and detached from the outer wall of the winding and unwinding mechanism 1 without unwinding. In this embodiment, the cutting part 12 can use a tool for cutting or laser cutting to quickly cut off the electrode wire 8.

[0046] The wire storage mechanism 2 can rotate forward or backward to wind and unwind the electrode wire 8. In this embodiment, the wire storage mechanism 2 includes a wire reel and a second motor that drives the wire reel to rotate; the wire storage amount dynamic adjustment mechanism 3 is used to obtain the difference between the winding and unwinding speed of the wire storage mechanism 2 and the actual speed at which the electrode wire 8 is clamped and fed by the wire feeding mechanism 4, and adjusts the speed of the wire storage mechanism 2 and / or the wire feeding mechanism 4 so that the storage amount of the electrode wire 8 on the wire storage amount dynamic adjustment mechanism 3 remains within a preset range (for the specific structure and working principle, refer to the utility model patent "A Filamentous Electrode Dynamic Adjustment Device" with the publication number CN219632773U); the wire feeding mechanism 4 is used to feed the electrode wire 8 forward or backward; the electrode wire 8 is unwound from the wire storage mechanism 2 and passes through the wire storage amount dynamic adjustment mechanism 3, the upper wire threading mechanism 6, the workpiece 5, and the lower wire threading mechanism 7 in sequence. Then, the movable end of the electrode wire 8 is clamped and fixed by the winding and unwinding mechanism 1, and the electrode wire 8 is wound by the rotation of the winding and unwinding mechanism 1; the wire storage mechanism 2 and the winding and unwinding mechanism 1 can rotate forward or backward synchronously to realize the bidirectional reciprocating wire walking or unidirectional wire walking of the electrode wire 8.

[0047] The electrode wire 8 includes a first electrode wire for rough cutting and a second electrode wire for finishing cutting. The first electrode wire and the second electrode wire are different segments of the same roll of electrode wire. The electrode wire 8 unrolled from the wire storage mechanism 2 can be defined as several segments. For example, the first segment closest to the movable end is the first electrode wire, and the second segment is the second electrode wire. The first electrode wire is used for rough cutting, and the second electrode wire is used for finishing cutting. When the number of cutting times of the first electrode wire is large and the wire loss is significant, the take-up and pay-off mechanism 1 can be switched to the second state, the electrode wire 8 is cut off and detached from the take-up and pay-off part 11. Since the original second electrode wire has a smaller wire loss for finishing cutting, it can be redefined as the first electrode wire for rough machining, and a new segment of the electrode wire 8 is used as the second electrode wire for finishing cutting, and so on. When the electrode wire 8 is long enough, continuous automatic operation can be carried out without manual wire clamping and wire removal. In this embodiment, the electrode wire 8 is preferably made of copper wire, which can meet the medium / high-speed wire cutting operation for rough cutting and the slow wire cutting operation for finishing cutting.

[0048] The lower wire threading mechanism 7 is provided with a transfer mechanism for transferring the movable end of the electrode wire 8 to the take-up and pay-off mechanism 1 so that the movable end of the electrode wire is clamped and fixed by the take-up and pay-off mechanism 1. The transfer mechanism includes a fixedly arranged wire threading conduit, or a transfer tube that can translate, or a clamping assembly that can translate (refer to the utility model patent "A filament electrode automatic wire threading and clamping mechanism" with the publication number CN220330176U). In this embodiment, the transfer mechanism adopts a transfer tube 14 that can translate, and an elastic clip 15 is arranged on the take-up and pay-off part 11. The clamping of the movable end of the electrode wire 8 is realized through the cooperation of the transfer tube 14 and the elastic clip 15 to achieve automatic wire clamping (the invention patent with the publication number CN116252009B discloses a wire cutting device for automatic wire threading, which realizes the automatic clamping, wire clamping and wire removal of the filament electrode and realizes automatic operation). A wire arranging mechanism 16 is provided between the transfer mechanism and the take-up and pay-off mechanism 1. The wire arranging mechanism 16 can cooperate with the take-up and pay-off mechanism 1 so that the electrode wire 8 is evenly arranged when wound around the outer wall of the take-up and pay-off mechanism 1, which is convenient for the take-up and pay-off mechanism 1 to wind up.

[0049] The working process of this embodiment:

[0050] A sufficiently long electrode wire 8 is wound around the wire storage mechanism 2 in a roll. The movable end of the electrode wire 8 is unrolled from the wire storage mechanism 2 and passes through the wire storage amount dynamic adjustment mechanism 3, the upper wire threading mechanism 6, the machining hole position of the workpiece 5, and the lower wire threading mechanism 7 in sequence. At this time, the take-up and pay-off mechanism 1 is switched to the first state. The movable end of the electrode wire 8 passes through the transfer tube 14 and is clamped and fixed by the take-up and pay-off part 11, completing automatic wire clamping.

[0051] The first motor 13 drives the winding and unwinding part 11 to rotate, causing the electrode wire 8 to wind around its outer wall. While the winding and unwinding part 11 winds and unwinds the electrode wire 8 under the drive of the first motor 13, the second motor of the wire storage mechanism 2 drives the wire drum to wind and unwind. The synchronous forward or reverse rotation of the wire drum with the winding and unwinding part 11 realizes the bidirectional reciprocating wire movement or unidirectional wire movement of the electrode wire 8, so as to realize the cutting process of the workpiece 5.

[0052] The first cutting process of the workpiece 5 is roughing cutting, and the second and above cuttings on the same machining surface of the workpiece 5 are finishing cuttings. The control system automatically defines the electrode wire 8 into several segments. The first segment close to the movable end of the electrode wire 8 is the first electrode wire, and the second segment is the second electrode wire. The bidirectional reciprocating wire movement of the first electrode wire is used to realize the rough machining of the workpiece 5, and the unidirectional wire movement of the second electrode wire is used to realize the finishing cutting of the workpiece 5.

[0053] When the first electrode wire has a large wire loss after multiple rough machining processes (which can be controlled by the number of cutting times or cutting duration), the winding and unwinding mechanism 1 switches to the second state. The cutting part 12 acts on the coiled electrode wire 8 on the winding and unwinding part 11, so that the coiled electrode wire 8 wound around the outer wall of the winding and unwinding part 11 is cut off without unwinding and directly detached from the outer wall of the winding and unwinding part 11, and the wire segment originally belonging to the first electrode wire is cut off and discarded, realizing rapid wire removal. The wire trimming mechanism 9 is used to trim the electrode wire 8, and the straightening mechanism 10 is used to straighten the cut-off part of the electrode wire 8, making the wire threading more smooth and avoiding wire jamming when continuing to thread the wire.

[0054] The original second electrode wire is redefined as the new first electrode wire for roughing cutting, and a new section of electrode wire is used as the second electrode wire for finishing cutting. In this way, it circulates alternately and continues to work until all the electrode wire 8 on the wire storage mechanism 2 is used up.

[0055] Example 2: Refer to Figure 1 、 Figures 4 to 8The difference between this embodiment and Example 1 is that the retractable mechanism 1 includes a first retractable portion 17, a second retractable portion 18, a clutch drive mechanism 19 for driving the first retractable portion 17 and the second retractable portion 18 to engage / separate, and a first motor 13 for driving the first retractable portion 17 and the second retractable portion 18 to rotate synchronously. The clutch drive mechanism 19 drives the first retractable portion 17 and the second retractable portion 18 to engage in a first state, and the clutch drive mechanism 19 drives the first retractable portion 17 and the second retractable portion 18 to separate in a second state. When the retractable mechanism 1 is in the first state, the first retractable portion 17 and the second retractable portion 18 are engaged to form a wire storage groove 20 for winding the electrode wire 8. The wire storage trough 20 gradually deepens from both sides to the middle or from one side to the other side. The clamping part of the first retractable part 17 and the second retractable part 18 is located at the deepest part of the wire storage trough 20, so that when the first retractable part 17 and the second retractable part 18 are separated, the rolled electrode wire 8 can be detached from the wire storage trough 20, and the electrode wire 8 is cut and discarded in cooperation with the wire cutting mechanism 9, and then the cut part of the electrode wire 8 is straightened by the straightening mechanism 10, so that the continued threading is smoother and wire blockage is avoided. The wire storage trough 20 of this embodiment adopts a structure that gradually deepens from both sides to the middle. The delivery mechanism adopts a fixedly arranged wire threading conduit, and its outlet extends to the clamping part close to the first retractable part 17 and the second retractable part 18. The movable end of the electrode wire 8 is clamped and fixed by the clamping part of the first retractable part 17 and the second retractable part 18. By adopting this wire clamping method, the movable end of the electrode wire 8 can be clamped by rotating the retractable mechanism 1 to any position without the need for a fixed wire clamping position. This is convenient and efficient, and significantly improves the success rate of wire clamping.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A high-efficiency wire cutting machine for clamping and removing wires, characterized by: It includes a retractable mechanism for retracting and releasing the electrode wire, and has a first state and a second state that can be switched between each other. When the retractable mechanism is in the first state, the movable end of the electrode wire is clamped and fixed by the retractable mechanism, and the retractable mechanism can make the electrode wire wind around its outer wall when it rotates. When the retractable mechanism is switched to the second state, the rolled electrode wire wound around the outer wall of the retractable mechanism can be detached from the outer wall of the retractable mechanism without being unwound.

2. The high-efficiency wire cutting machine for clamping and removing wires according to claim 1 is characterized by: The retractable mechanism includes a retractable part, a cutting part and a first motor that drives the retractable part to rotate. When the retractable mechanism is in a first state, the movable end of the electrode wire is clamped and fixed by the retractable part, and the retractable part can cause the electrode wire to be wound around its outer wall when it rotates. When the retractable mechanism is switched to a second state, the cutting part can act on the retractable part so that the rolled electrode wire wound around the outer wall of the retractable part is cut off and detached from the outer wall of the retractable mechanism without being unwound.

3. The high-efficiency wire cutting machine for clamping and removing wires according to claim 1 is characterized by: The retractable mechanism includes a first retractable part, a second retractable part, and a clutch driving mechanism for driving the first retractable part and the second retractable part to clamp / separate. The clutch driving mechanism drives the first retractable part and the second retractable part to clamp together in the first state, and the clutch driving mechanism drives the first retractable part and the second retractable part to separate from each other in the second state.

4. The high-efficiency wire cutting machine for clamping and removing wires according to claim 3 is characterized by: When the retractable mechanism is in the first state, the first retractable portion and the second retractable portion are clamped together to form a wire storage groove for winding the electrode wire.

5. The high-efficiency wire cutting machine for clamping and removing wires according to claim 4, characterized in that: The wire storage trough gradually deepens from both sides to the middle or from one side to the other side, and the clamping point of the first retractable portion and the second retractable portion is located at the deepest part of the wire storage trough, so that the rolled electrode wire can be detached from the wire storage trough when the first retractable portion and the second retractable portion are separated.

6. The high-efficiency wire cutting machine for clamping and removing wires according to claim 3 is characterized by: The retractable mechanism includes a first motor that drives the first retractable portion and the second retractable portion to rotate synchronously.

7. A high-efficiency wire cutting machine for clamping and removing wires according to any one of claims 1 to 6, characterized in that: include: The wire storage mechanism can rotate forward or reverse to retract and release the electrode wire; A wire storage amount dynamic adjustment mechanism, used for obtaining the difference between the winding and unwinding speed of the wire storage mechanism and the actual speed at which the electrode wire is clamped and conveyed by the clamping and conveying mechanism, and adjusting the speed of the wire storage mechanism and / or the clamping and conveying mechanism so that the electrode wire storage amount on the wire storage amount dynamic adjustment mechanism is maintained within a preset range; A clamping and feeding mechanism, used for clamping and feeding the electrode wire forward or backward; The upper wire threading mechanism is located above the workpiece to be processed; A lower wire threading mechanism is located below the workpiece to be processed; The electrode wire is unwound from the wire storage mechanism, and passes through the wire storage amount dynamic adjustment mechanism, the upper wire threading mechanism, the workpiece, and the lower wire threading mechanism in sequence. The movable end of the electrode wire is clamped and fixed by the retracting mechanism, and is rotated and rewound by the retracting mechanism. The wire storage mechanism and the retracting mechanism can rotate forward or reverse synchronously to realize bidirectional reciprocating wire feeding or unidirectional wire feeding of the electrode wire.

8. The high-efficiency wire cutting machine for clamping and removing wires according to claim 7, characterized in that: The electrode wire comprises a first electrode wire for rough cutting and a second electrode wire for fine cutting, and the first electrode wire and the second electrode wire are different sections of the same rolled electrode wire.

9. The high-efficiency wire cutting machine for clamping and removing wires according to claim 7, characterized in that: The lower wire threading mechanism is provided with a receiving mechanism for delivering the movable end of the electrode wire to the retracting mechanism so that the movable end of the electrode wire is clamped and fixed by the retracting mechanism. The receiving mechanism includes a fixedly arranged wire threading catheter, or includes a translationally movable receiving tube, or includes a translationally movable clamping assembly.

10. The high-efficiency wire cutting machine for clamping and removing wires according to claim 9, characterized in that: The delivery mechanism comprises a fixed wire threading conduit, which extends from the lower wire threading mechanism to one side of the retractable mechanism, so that the movable end of the electrode wire can be clamped and fixed by the retractable mechanism after passing through the wire threading conduit.

11. The high-efficiency wire cutting machine for clamping and removing wires according to claim 7, characterized in that: A wire arranging mechanism is provided between the receiving mechanism and the retracting mechanism, and the wire arranging mechanism can cooperate with the retracting mechanism to make the electrode wire evenly arranged when it is wound around the outer wall of the retracting mechanism.

12. The high-efficiency wire cutting machine for clamping and removing wires according to claim 7, characterized in that: The utility model comprises a wire cutting mechanism for cutting the electrode wire.

13. The high-efficiency wire cutting machine for clamping and removing wires according to claim 12, characterized in that: It includes a straightening mechanism for straightening the electrode wire at the cut point.

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