Perforating electrode wire and perforating machine

Abstract

The utility model discloses a perforating electrode wire and a perforating machine, and belongs to the technical field of electric spark perforating. The perforating electrode wire is used for a perforating machine, the perforating machine is used for driving the electrode wire to rotate and move towards a workpiece, and the electrode wire is a cylinder with a side plane. When a perforating machine uses the electrode wire to machine a round hole, waste residues of the machined round hole can be discharged from the portion, provided with the side plane, of the electrode wire, and the problem that in the prior art, the section shape of the electrode wire and the machined shape coincide much, and waste residue discharging is not facilitated is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric spark piercing, and particularly relates to a piercing electrode wire and a piercing machine. BACKGROUND

[0002] The electric spark piercing machine uses a rotating chuck to clamp one end of the electrode wire away from a workpiece, and the rotating chuck drives the electrode wire to rotate during piercing processing of the workpiece, and a lifting device drives the rotating chuck and the electrode wire to move through a guide tube to the workpiece.

[0003] However, the electrode wire used in the prior art is in a cylindrical structure, the rotating chuck drives the cylindrical structure of the electrode wire to rotate to process a circular hole, and there is a problem that the cross-sectional shape of the electrode wire is more coincident with the processed shape, which is not conducive to waste residue discharge. SUMMARY

[0004] The application aims to provide a piercing electrode wire and a piercing machine, which solve the problem that the cross-sectional shape of the electrode wire is more coincident with the processed shape in the prior art, which is not conducive to waste residue discharge, by making the electrode wire a cylindrical structure provided with a side plane.

[0005] The technical scheme of the application is as follows: in a first aspect, a piercing electrode wire is used in a piercing machine, and the piercing machine is used to drive the electrode wire to rotate and move to a workpiece.

[0006] The electrode wire is a cylindrical structure provided with a side plane.

[0007] In a further embodiment of the first aspect, the radial cross-section of the electrode wire comprises a circular-arc outer contour and a straight-line segment outer contour.

[0008] The circular-arc outer contour is a circular partial line segment, the straight-line segment outer contour is perpendicular to one diameter line of the circle where the circular-arc outer contour is located, and the straight-line segment outer contour intersects the circle at 1 / 5 to 1 / 3 of the diameter line, and 2 / 3 to 4 / 5 of the diameter line of the circle is located in the enclosed area of the circular-arc outer contour and the straight-line segment outer contour.

[0009] In a further embodiment of the first aspect, the radial cross-section of the electrode wire comprises a circular-arc outer contour, a straight-line segment outer contour and a chamfered-line segment outer contour, and the two ends of the circular-arc outer contour and the straight-line segment outer contour are connected by the chamfered-line segment outer contour.

[0010] In a second aspect, a piercing machine comprises a machine frame, a lifting device, a wire feeding device and the electrode wire of the first aspect.

[0011] The lifting device is installed on the machine frame, the wire feeding device is installed on the lifting device, and the electrode wire is installed on the wire feeding device.

[0012] The wire feeding device comprises a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism and a wire guide.

[0013] The rotating mechanism is installed on a lifting device, the electrode mechanism, the wire pressing wheel mechanism and the wire guide are installed on the rotating mechanism, the wire pressing wheel mechanism is arranged below the electrode mechanism, and the wire guide is arranged below the wire pressing wheel mechanism.

[0014] The wire guide is provided with a wire guide hole, the shape of the wire guide hole is matched with the shape of the electrode wire, and the rotating mechanism drives the electrode wire to rotate through the wire guide.

[0015] The rotating mechanism is used for driving the electrode mechanism, the wire pressing wheel mechanism and the electrode wire to rotate, the electrode mechanism is connected with the electrode wire, the wire pressing wheel mechanism is used for driving the electrode wire to move, the electrode wire is fixed at one end close to the workpiece through the electrode mechanism and the wire pressing wheel mechanism, and then the wire pressing wheel mechanism feeds the electrode wire at the one end close to the workpiece, so that the length of the electrode wire far away from the workpiece can be not limited, and the length of the electrode wire can be greatly extended.

[0016] Moreover, the wire guide is installed on the rotating mechanism, the wire guide and the rotating mechanism can be synchronously moved by using one lifting device, and the structure of the lifting device is simplified.

[0017] In a further embodiment of the second aspect, the wire feeding device further comprises a spool installed on the frame and used for winding the electrode wire, so that the one end of the electrode wire far away from the workpiece can be greatly extended and positioned.

[0018] In a further embodiment of the second aspect, the wire feeding device further comprises a first wire guide and a second wire guide.

[0019] The electrode mechanism and the wire pressing wheel mechanism are arranged between the first wire guide and the second wire guide, the second wire guide is arranged on the side of the wire pressing wheel mechanism close to the workpiece, the electrode wire between the first wire guide and the second wire guide, the electrode mechanism and the wire pressing wheel mechanism can be synchronously rotated, and the stability of the cooperation of the three is improved.

[0020] In a further embodiment of the second aspect, the wire guide is provided with a liquid cavity and a liquid outlet hole, the liquid cavity is used for being connected with a liquid supply system, and the liquid outlet hole is connected with the liquid cavity.

[0021] The wire guide hole is a cylindrical cavity provided with a side plane, and the liquid outlet hole is arranged on one side of the side plane of the wire guide hole.

[0022] In a further embodiment of the second aspect, one side of the wire guide hole far away from the liquid outlet hole is a wire guide circular arc profile, and the other side of the wire guide hole close to the liquid outlet hole is a wire guide straight line profile, and the two wire guide straight line profiles are respectively connected with two ends of the wire guide circular arc profile.

[0023] The side of the liquid outlet hole away from the guide wire hole is an outlet liquid arc profile, and the side of the liquid outlet hole close to the guide wire hole is an outlet liquid transition profile, and the two outlet liquid transition profiles are connected with the two ends of the outlet liquid arc profile respectively.

[0024] The guide wire straight profile and the outlet liquid transition profile are connected, so that the liquid outlet hole is communicated with the side plane of the guide wire hole, the fluid enters the perforated part of the workpiece along the side plane of the electrode wire, the fluid is more accurately flushed, and the waste slag is flushed out, and the guide wire member can drive the electrode wire to stably rotate through the guide wire straight profile.

[0025] In a further embodiment of the second aspect, the side of the guide wire hole away from the liquid outlet hole is a guide wire arc profile, the side of the liquid outlet hole away from the guide wire hole is an outlet liquid arc profile, and the guide wire arc profile and the outlet liquid arc profile are local line segments of the same circle, so that the high-pressure fluid output by the liquid outlet hole forms a complete circle with the electrode wire on the workpiece when the guide wire member and the electrode wire rotate, and the fluid is more accurately flushed into the machined part of the workpiece to flush out the waste slag.

[0026] In a third aspect, a perforating machine comprises a machine frame, a lifting device, a rotating chuck, a guide wire pipe and the electrode wire of the first aspect.

[0027] The lifting device is installed on the machine frame, the rotating chuck and the guide wire pipe are installed on the lifting device, and the electrode wire is installed on the rotating chuck. The rotating chuck is used to drive the electrode wire to rotate and move towards the workpiece through the guide wire member.

[0028] The electrode wire is a cylindrical structure provided with a side plane, and the rotating device of the perforating machine drives the electrode wire to rotate, so that the shape of the electrode wire is processed to form a circular hole, and the waste slag of the machined circular hole can be discharged from the part provided with the side plane of the electrode wire in the process, thereby solving the problem that the cross-sectional shape of the electrode wire of the prior art coincides with the machined shape more, which is not conducive to the discharge of waste slag. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a partial axial view of the electrode wire of the present application.

[0030] Figure 2 is a radial cross-sectional view of the electrode wire of the present application.

[0031] Figure 3 is an overall axial view of the perforating machine of the second aspect of the present application.

[0032] Figure 4 is an embodiment view of the wire feeding device of the perforating machine of the second aspect of the present application, which comprises a barrel.

[0033] Figure 5is another angle view of the wire feeder of the puncher of the second aspect of the present application.

[0034] Figure 6 is a schematic view of the electrode mechanism of the puncher of the second aspect of the present application.

[0035] Figure 7 is a schematic view of the wire presser mechanism mounted on the rotating mechanism of the puncher of the second aspect of the present application.

[0036] Figure 8 is a schematic view of the cooperation of the active wire presser, the passive wire presser, the active wire feeder gear and the passive wire feeder gear of the puncher of the second aspect of the present application.

[0037] Figure 9 is a bottom view of the second wire guide of the puncher of the second aspect of the present application.

[0038] Figure 10 is a bottom view of the cooperation of the second wire guide and the electrode wire of the puncher of the second aspect of the present application.

[0039] The reference signs shown in the figure are: electrode wire 1, circular arc outer contour 11, straight line segment outer contour 12, chamfered line segment outer contour 13, frame 2, lifting device 3, wire feeder 4, barrel 41, rotating mechanism 42, fixed frame 421, rotating motor 422, rotating passive gear 423, rotating frame 424, electrode mechanism 43, first fixed block 431, second fixed block 432, electrode spring 433, electrode guide assembly 434, electrode piece 435, wire presser mechanism 44, wire feeder guide mechanism 441, wire feeder spring 442, wire feeder frame 443, wire feeder motor 444, active wire presser 445, passive wire presser 446, active wire feeder gear 447, passive wire feeder gear 448, wire guide 45, wire guide circular arc contour 451, wire guide straight line contour 452, liquid outlet circular arc contour 453, liquid outlet transition contour 454. DETAILED DESCRIPTION

[0040] In the following description, numerous specific details are given to provide a thorough understanding of the application. However, it will be apparent that the application can be practiced without one or more of the specific details. In other instances, well-known features are not described in detail in order to avoid obscuring the application. Accordingly, the specific

[0041] The application discloses a punch electrode wire and a puncher. The punch electrode wire is used for the puncher. The puncher drives the electrode wire to rotate and move towards a workpiece. The electrode wire is a cylindrical structure provided with a side plane. The problem that the cross-sectional shape of the electrode wire of the prior art is more coincident with the processed shape and is not conducive to waste residue discharge is solved.

[0042] In a first aspect, as Figure 1and 2 The electrode wire 1 is a cylinder provided with a side plane.

[0043] The radial section of the electrode wire 1 comprises: a circular arc outer contour 11 and a straight line segment outer contour 12.

[0044] The circular arc outer contour 11 is a circular partial line segment, the straight line segment outer contour 12 intersects perpendicularly with a diameter line of the circle where the circular arc outer contour 11 is located, and the straight line segment outer contour 12 intersects at 1 / 5~1 / 3 of the diameter line of the circle, and 2 / 3~4 / 5 of the diameter line of the circle is located in the enclosed area of the circular arc outer contour 11 and the straight line segment outer contour 12, wherein the radial section of the electrode wire 1 is as shown in the axial vertical section of the electrode wire 1, and in the preferred embodiment, the straight line segment outer contour 12 intersects at 1 / 3 of the diameter line of the circle. Figure 2

[0045] In a further embodiment, the radial section of the electrode wire 1 comprises: a circular arc outer contour 11, a straight line segment outer contour 12 and a chamfer line segment outer contour 13, the two ends of the circular arc outer contour 11 and the straight line segment outer contour 12 are connected by the chamfer line segment outer contour 13, which can be a circular arc line as shown in the figure, or a straight line segment arranged at an obtuse angle with the straight line segment outer contour 12. Figure 2

[0046] The method for using the electrode wire 1 comprises: S100, installing the electrode wire 1 and the workpiece on a piercing machine, and the piercing machine connects the electrode wire 1 and the workpiece as an electrode.

[0047] S200, the piercing machine drives the electrode wire 1 to rotate and move towards the workpiece, and performs piercing processing on the workpiece.

[0048] S300, when the electrode wire 1 is used to perform piercing processing on the workpiece in S200, the piercing machine uses a fluid to flush out the waste slag of the piercing processing part from the side plane position of the electrode wire 1, wherein the fluid can be gas or water or oil.

[0049] The second aspect is a piercing machine comprising: a machine frame 2, a lifting device 3, a wire feeding device 4 and the electrode wire 1 of the first aspect.

[0050] The lifting device 3 is installed on the machine frame 2, the wire feeding device 4 is installed on the lifting device 3, and the electrode wire 1 is installed on the wire feeding device 4.

[0051] The wire feeding device 4 comprises: a rotating mechanism 42, an electrode mechanism 43, a wire pressing wheel mechanism 44 and a wire guide 45.

[0052] ​​The rotating mechanism 42 is installed on the lifting device 3, the electrode mechanism 43, the pressure wire wheel mechanism 44 and the wire guide 45 are installed on the rotating mechanism 42, the pressure wire wheel mechanism 44 is arranged below the electrode mechanism 43, and the wire guide 45 is arranged below the pressure wire wheel mechanism 44.

[0053] The wire guide 45 is provided with a wire guide hole, the shape of the wire guide hole matches the shape of the electrode wire 1, and the rotating mechanism 42 drives the electrode wire 1 to rotate through the wire guide 45, as shown in Figure 10 The wire guide hole is a cylindrical cavity provided with a side plane, and the rotating mechanism 42 drives the electrode wire 1 to rotate through the wire guide 45 by utilizing the special-shaped structure of the wire guide hole and the electrode wire 1.

[0054] The rotating mechanism 42 is used to drive the electrode mechanism 43, the pressure wire wheel mechanism 44 and the electrode wire 1 to rotate, the electrode mechanism 43 is connected with the electrode wire 1, the pressure wire wheel mechanism 44 is used to drive the electrode wire 1 to move, and in the preferred embodiment, one side of the electrode mechanism 43 and the pressure wire wheel mechanism 44 matches the side plane of the electrode wire 1, which can increase the stability of the matching.

[0055] As shown in Figure 3 and 4 The wire feeding device 4 further comprises a spool 41 installed on the frame 2, which is used to wind the electrode wire 1.

[0056] As shown in Figure 5 The wire feeding device 4 further comprises a first wire guide 45 and a second wire guide 45.

[0057] The electrode mechanism 43 and the pressure wire wheel mechanism 44 are arranged between the first wire guide 45 and the second wire guide 45, and the second wire guide 45 is arranged on the side of the pressure wire wheel mechanism 44 close to the workpiece.

[0058] Regarding the wire guide 45, the wire guide 45 is provided with a liquid cavity and a liquid outlet hole, the liquid cavity is used to communicate with a liquid supply system, and the liquid outlet hole communicates with the liquid cavity.

[0059] The wire guide hole is a cylindrical cavity provided with a side plane, and the liquid outlet hole is arranged on the side of the side plane of the wire guide hole, wherein the second wire guide 45 is provided with a wire guide hole, a liquid cavity and a liquid outlet hole, and the first wire guide 45 is only provided with a wire guide hole, without a liquid cavity and a liquid outlet hole.

[0060] In further embodiments of the wire guide 45, the wire guide hole and the liquid outlet hole can be two separate holes, or as shown in Figure 9 the wire guide hole and the liquid outlet hole are special-shaped holes communicating with each other.

[0061] As shown in Figure 9 the side of the wire guide hole away from the liquid outlet hole is a wire guide circular arc contour 451, the side of the wire guide hole close to the liquid outlet hole is a wire guide straight line contour 452, and the two wire guide straight line contours 452 are respectively connected with the two ends of the wire guide circular arc contour 451, as shown in Figure 9The wire straight line profile 452 and the wire arc profile 451 are connected by a wire chamfer profile.

[0062] The liquid outlet arc profile 423 is on the side of the liquid outlet hole away from the wire hole, and the liquid outlet transition profile 454 is on the side of the liquid outlet hole close to the wire hole, and the two liquid outlet transition profiles 454 are connected to the two ends of the liquid outlet arc profile 423 respectively.

[0063] The wire straight line profile 452 and the liquid outlet transition profile 454 are connected.

[0064] As Figure 9 The liquid outlet transition profile 454 is a straight line arranged perpendicularly to the wire straight line profile 452, or the liquid outlet transition profile 454 can be an arc line.

[0065] In a further embodiment of the wire guide 45, the wire hole is on the side of the wire hole away from the liquid outlet hole, and the liquid outlet hole is on the side of the liquid outlet hole away from the wire hole, and the wire arc profile 451 and the liquid outlet arc profile 423 are local line segments of the same circle.

[0066] Regarding the lifting device 3, the lifting device 3 is a vertical arrangement of a lead screw mechanism or an electric cylinder mechanism or a hydraulic cylinder mechanism.

[0067] Regarding the rotating mechanism 42, as Figure 4 and 5 The rotating mechanism 42 includes a fixed frame 421, a rotating motor 422, a rotating driving gear, a rotating driven gear 423, and a rotating frame 424.

[0068] The fixed frame 421 is mounted on the lifting device 3 of the perforating machine, the rotating motor 422 and the rotating driven gear 423 are mounted on the fixed frame 421, the rotating driving gear is mounted on the rotating motor 422, the rotating driving gear and the rotating driven gear 423 are engaged, and the rotating frame 424 is mounted on the rotating driven gear 423, as Figure 5 The first wire guide 45 is mounted on the rotating driven gear 423, and the second wire guide 45 is mounted on the rotating frame 424.

[0069] The electrode mechanism 43 and the wire pressing wheel mechanism 44 are mounted on the rotating frame 424.

[0070] The rotating mechanism 42 is used to drive the electrode mechanism 43, the wire pressing wheel mechanism 44, and the electrode wire 1 to rotate reciprocally.

[0071] Regarding the electrode mechanism 43, as Figure 4 The first electrode mechanism 43 and the second electrode mechanism 43 are provided, and the electrode mechanism 43 can be directly mounted on the rotating mechanism 42, or as Figure 4The electrode mechanism 43 is mounted on the wire feeder 443 of the wire pressing wheel mechanism 44, so that the electrode mechanism 43 is mounted on the rotating mechanism 42 through the wire pressing wheel mechanism 44.

[0072] like Figure 6 The electrode mechanism 43 shown includes: a first fixing block 431, a second fixing block 432, an electrode spring 433, an electrode guide assembly 434, and an electrode component 435.

[0073] The first fixing block 431 and the second fixing block 432 are mounted on the rotating mechanism 42. The electrode guide assembly 434 is mounted on the first fixing block 431. The electrode element 435 is mounted on the electrode guide assembly 434. The electrode spring 433 is mounted between the electrode element 435 and the first fixing block 431. The electrode spring 433 is used to apply a force to the electrode element 435 toward the second fixing block 432, so that the electrode element 435 and the second fixing block 432 clamp the electrode wire 1.

[0074] The first fixing block 431 of the first electrode mechanism 43 is disposed above the second fixing block 432 of the second electrode mechanism 43.

[0075] The second fixing block 432 of the first electrode mechanism 43 is disposed above the first fixing block 431 of the second electrode mechanism 43, which enables the two electrode springs 433 to apply opposing forces to the two electrode components 435 respectively, thereby improving the clamping force on the electrode wire 1.

[0076] Regarding the pressure roller mechanism 44, such as Figure 7 The diagram shows a first pressure roller mechanism 44 and a second pressure roller mechanism 44, wherein an electrode mechanism 43 is disposed between the first pressure roller mechanism 44 and the second pressure roller mechanism 44, and the second pressure roller mechanism 44 is disposed on the side of the electrode mechanism 43 closer to the workpiece. During the piercing operation, the second pressure roller mechanism 44 drives the electrode wire 1 to move at a speed greater than the first pressure roller mechanism 44 drives the electrode wire 1 to move at a speed greater than the first pressure roller mechanism 44, which enables the electrode wire 1 to maintain a certain tension during its movement and pass through the electrode mechanism 43 in a straight line.

[0077] The wire pressing wheel mechanism 44 includes: a wire feeding guide mechanism 441, a wire feeding spring 442, a wire feeding frame 443, a wire feeding motor 444, an active wire pressing wheel 445, a passive wire pressing wheel 446, an active wire feeding gear 447, and a passive wire feeding gear 448.

[0078] Two wire feeding guide mechanisms 441 are installed on the rotating mechanism 42, two wire feeding frames 443 are respectively installed on the two wire feeding guide mechanisms 441, wire feeding springs 442 are installed between the wire feeding frames 443 and the rotating mechanism 42, a wire feeding motor 444 is installed on one wire feeding frame 443, a driving pressure wire wheel 445 and a wire feeding driving gear 447 are installed on the wire feeding motor 444, a passive pressure wire wheel 446 and a wire feeding passive gear 448 are installed on the other wire feeding frame 443, the driving pressure wire wheel 445 and the wire feeding driving gear 447 are connected, the passive pressure wire wheel 446 and the wire feeding passive gear 448 are connected, the wire feeding driving gear 447 and the wire feeding passive gear 448 are engaged, the driving pressure wire wheel 445 and the passive pressure wire wheel 446 can have enough clamping force on the electrode wire 1 through the wire feeding guide mechanisms 441 and the wire feeding springs 442, and can also adapt to the diameter of the electrode wire 1, and the synchronous rotation of the passive pressure wire wheel 446 driven by the wire feeding passive gear 448 and the driving pressure wire wheel 445 can ensure the stability of the movement of the electrode wire 1.

[0079] In Figure 7 In the embodiment shown, the first pressure wire wheel mechanism 44 and the second pressure wire wheel mechanism 44 share a set of wire feeding guide mechanisms 441, wire feeding springs 442 and wire feeding frames 443, and in other embodiments, only one set of wire feeding guide mechanisms 441, wire feeding springs 442 and wire feeding frames 443 can be provided, one of the wire feeding motor 444 and the passive pressure wire wheel 446 of the pressure wire wheel mechanism 44 is installed on the rotating frame 424 of the rotating mechanism 42, and the other is installed on the wire feeding frame 443.

[0080] Among them, the wire feeding guide mechanism 441 and the electrode guide assembly 434 can be a combination of linear bearings and linear shafts, or a combination of sliders and guide rails.

[0081] The working method of the perforating machine: the electrode wire 1 wound on the reel 41 passes through the electrode mechanism 43, the pressure wire wheel mechanism 44 and the wire guide 45, and the workpiece is clamped on the workbench.

[0082] The workbench drives the part to be processed of the workpiece to move below the wire feeding device 4, and then the lifting device 3 drives the wire feeding device 4 to move towards the workpiece, the control equipment of the perforating machine controls the electrode wire 1 and the workpiece to be connected to the electrode respectively, the pressure wire wheel mechanism 44 drives the electrode wire 1 on the reel 41 to move towards the workpiece, at the same time, the rotating mechanism 42 drives the electrode wire 1 to rotate reciprocatingly to realize electric spark perforation on the workpiece, in the perforation process, the liquid supply system of the perforating machine supplies fluid to the part to be processed of the workpiece through the liquid cavity and the liquid outlet hole of the second wire guide 45 to flush out the waste slag, and when the pressure of the delivered fluid exceeds the threshold value, it also has a shaping function on the part to be processed.

[0083] In a third aspect, a perforating machine comprises a machine frame, a lifting device, a rotating chuck, a wire guide tube and the electrode wire 1 of the first aspect.

[0084] The lifting device is installed on the frame, the rotating chuck and the guide tube are installed on the lifting device, the electrode wire 1 is installed on the rotating chuck, the rotating chuck is used to drive the electrode wire 1 to rotate, and the lifting device is used to drive the rotating chuck and the electrode wire 1 to move to the workpiece direction through the guide tube.

[0085] As mentioned above, although the application has been illustrated and described with reference to particular preferred embodiments, it is not intended to be limited to the details shown, since various modifications and substitutions can be made without departing from the spirit of the application as defined by the appended claims.

Claims

1. A perforating electrode wire for a perforating machine, the perforating machine being used to rotate and move the electrode wire towards a workpiece; characterized in that the electrode wire is a cylinder provided with a side plane.

2. The perforated electrode wire of claim 1, wherein the radial section of the electrode wire comprises a circular arc outer contour and a straight line segment outer contour; the circular arc outer contour is a partial line segment of a circle, the straight line segment outer contour is perpendicular to a diameter line of the circle where the circular arc outer contour is located, and the straight line segment outer contour intersects the diameter line at 1 / 5-1 / 3 of the circle, and 2 / 3-4 / 5 of the diameter line of the circle is located in the enclosed area of the circular arc outer contour and the straight line segment outer contour.

3. The perforated electrode wire of claim 1, wherein the radial section of the electrode wire comprises a circular arc outer contour, a straight line segment outer contour and a chamfered line segment outer contour, and the two ends of the circular arc outer contour and the straight line segment outer contour are connected by the chamfered line segment outer contour.

4. A perforating machine characterized by, comprising: a machine frame, a lifting device, a wire feeding device and the electrode wire according to any one of claims 1-3; the lifting device is installed on the machine frame, and the wire feeding device is installed on the lifting device, and the electrode wire is installed on the wire feeding device; the wire feeding device comprises a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism and a wire guide; the rotating mechanism is installed on the lifting device, the electrode mechanism, the wire pressing wheel mechanism and the wire guide are installed on the rotating mechanism, the wire pressing wheel mechanism is arranged below the electrode mechanism, and the wire guide is arranged below the wire pressing wheel mechanism; the wire guide is provided with a wire guide hole, and the shape of the wire guide hole matches the shape of the electrode wire, so that the rotating mechanism drives the electrode wire to rotate through the wire guide; the rotating mechanism is used to drive the electrode mechanism, the wire pressing wheel mechanism and the electrode wire to rotate, the electrode mechanism is connected with the electrode wire, and the wire pressing wheel mechanism is used to drive the electrode wire to move.

5. The machine of claim 4 wherein, the wire feeding device further comprises a cartridge installed on the machine frame, which is used to wind the electrode wire.

6. The machine of claim 4 wherein, the wire feeding device further comprises a first wire guide and a second wire guide; the electrode mechanism and the wire pressing wheel mechanism are arranged between the first wire guide and the second wire guide, and the second wire guide is arranged on the side of the wire pressing wheel mechanism close to the workpiece.

7. The machine of claim 4 wherein, the wire guide is provided with a liquid cavity and a liquid outlet hole, the liquid cavity is used to communicate with a liquid supply system, and the liquid outlet hole communicates with the liquid cavity; the wire guide hole is a cylindrical cavity provided with a side plane, and the liquid outlet hole is arranged on one side of the side plane of the wire guide hole.

8. The machine of claim 7 wherein, the side of the wire guide hole away from the liquid outlet hole is a wire guide circular arc contour, the side of the wire guide hole close to the liquid outlet hole is a wire guide straight line contour, and the two wire guide straight line contours are connected with the two ends of the wire guide circular arc contour respectively; the side of the liquid outlet hole away from the wire guide hole is a liquid outlet circular arc contour, the side of the liquid outlet hole close to the wire guide hole is a liquid outlet transition contour, and the two liquid outlet transition contours are connected with the two ends of the liquid outlet circular arc contour respectively; the wire guide straight line contour and the liquid outlet transition contour are connected.

9. The machine of claim 7 wherein, the side of the wire guide hole away from the liquid outlet hole is a wire guide circular arc contour, the side of the liquid outlet hole away from the wire guide hole is a liquid outlet circular arc contour, and the wire guide circular arc contour and the liquid outlet circular arc contour are partial line segments of the same circle.

10. A perforating machine characterized by, comprising: a machine frame, a lifting device, a rotating chuck, a wire guide tube and the electrode wire according to any one of claims 1-3; The lifting device is installed on the frame, the rotating chuck and the guide wire tube are installed on the lifting device, the electrode wire is installed on the rotating chuck, the rotating chuck is used to drive the electrode wire to rotate, and the lifting device is used to drive the rotating chuck and the electrode wire to move to the workpiece through the guide wire tube.

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