Perforating wire feeding device and perforating machine

Abstract

The invention discloses a perforating wire feeding device and a perforating machine, and belongs to the technical field of spark erosion perforating machines. The perforating wire feeding device comprises a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism and a wire guiding piece, the rotating mechanism and the wire guiding piece are installed on a lifting device of the perforating machine, the electrode mechanism and the wire pressing wheel mechanism are installed on the rotating mechanism, the wire pressing wheel mechanism is arranged below the electrode mechanism, and the wire guiding piece is arranged below the wire pressing wheel mechanism. The rotating mechanism is used for driving the electrode mechanism and the wire pressing wheel mechanism to rotate, the electrode mechanism is used for clamping an electrode wire, and the wire pressing wheel mechanism is used for clamping and driving the electrode wire to move. The length of the end, away from the workpiece, of the electrode wire is not limited, and the problem that the length of the electrode wire used in the prior art is short is solved.

Description

Technical Field

[0001] The invention belongs to the field of electric spark perforators, in particular to a perforating wire feeding device and a perforator. Background Art

[0002] In the prior art, the wire feeding device of the electric spark punching machine includes a chuck and a wire guide tube. The wire guide tube is arranged between the chuck and the workpiece. The chuck clamps the end of the electrode wire away from the workpiece. Then the lifting device of the punching machine drives the electrode wire through the chuck through the wire guide tube to feed the wire toward the workpiece. The length of the electrode wire is limited by the distance between the chuck and the workpiece. There is a problem that the length of the electrode wire that can be used in the prior art is relatively short. Summary of the invention

[0003] Purpose of the invention: to provide a perforating wire feeding device and a perforating machine, which fixes and feeds the end of the electrode wire close to the workpiece through a wire pressing wheel mechanism, and can not limit the length of the electrode wire away from the end of the workpiece, thereby solving the problem of short electrode wire length that can be used in the prior art.

[0004] The technical solution of the present invention is as follows: in a first aspect, a perforating wire feeding device is installed on a lifting device of a perforating machine.

[0005] The perforating wire feeding device comprises: a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism and a wire guide.

[0006] The rotating mechanism and the wire guide are installed on the lifting device of the punching machine, the electrode mechanism and the wire pressing wheel mechanism 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.

[0007] The rotating mechanism is used to drive the electrode mechanism and the wire pressing wheel mechanism to rotate, the electrode mechanism is used to clamp the electrode wire, and the wire pressing wheel mechanism is used to clamp and drive the electrode wire to move.

[0008] In a further embodiment of the first aspect, the perforating wire feeding device also includes: a barrel, which is installed on the perforating machine and is used to wind the electrode wire, and can fix one end of the electrode wire away from the workpiece while winding a longer electrode wire.

[0009] In a further embodiment of the first aspect, the perforating wire feeding device includes: a first wire pressing wheel mechanism and a second wire pressing wheel mechanism, and the electrode mechanism is arranged between the first wire pressing wheel mechanism and the second wire pressing wheel mechanism.

[0010] The second wire pressing wheel mechanism is arranged on a side of the electrode mechanism close to the workpiece.

[0011] During the punching operation, the speed at which the electrode wire is driven to move by the second wire pressing wheel mechanism is greater than the speed at which the electrode wire is driven to move by the first wire pressing wheel mechanism, so that the electrode wire can maintain a certain tension during movement and pass through the electrode mechanism in a straight line.

[0012] In a further embodiment of the first aspect, the wire pressing wheel mechanism includes: a wire feeding guide mechanism, a wire feeding spring, a wire feeding frame, a wire feeding motor, an active wire pressing wheel, a passive wire pressing wheel, a wire feeding active gear and a wire feeding passive gear.

[0013] The two wire feeding guide mechanisms are installed on the rotating mechanism, the two wire feeding racks are respectively installed on the two wire feeding guide mechanisms, the wire feeding spring is installed between the wire feeding rack and the rotating mechanism, the wire feeding motor is installed on one wire feeding rack, the active wire pressing wheel and the wire feeding active gear are installed on the wire feeding motor, the passive wire pressing wheel and the wire feeding passive gear are installed on the other wire feeding rack, the active wire pressing wheel is connected to the wire feeding active gear, the passive wire pressing wheel is connected to the wire feeding passive gear, the wire feeding active gear and the wire feeding passive gear are meshed, the wire feeding guide mechanism and the wire feeding spring can make the active wire pressing wheel and the passive wire pressing wheel have sufficient clamping force on the electrode wire, and can also adapt to the diameter of the electrode wire, the wire feeding active gear and the wire feeding passive gear are meshed, so that the wire feeding passive gear drives the passive wire pressing wheel to rotate synchronously with the active wire pressing wheel to ensure the stability of the movement of the electrode wire.

[0014] In a further embodiment of the first aspect, the electrode mechanism includes: a first fixed block, a second fixed block, an electrode spring, an electrode guide assembly and an electrode member.

[0015] The first fixed block and the second fixed block are installed on the rotating mechanism, the electrode guide assembly is installed on the first fixed block, the electrode member is installed on the electrode guide assembly, the electrode spring is installed between the electrode member and the first fixed block, and the electrode spring is used to apply a force to the electrode member toward the second fixed block so that the electrode member and the second fixed block clamp the electrode wire.

[0016] In a further embodiment of the first aspect, the perforating wire feeding device includes: a first electrode mechanism and a second electrode mechanism.

[0017] The first fixing block of the first electrode mechanism is arranged above the second fixing block of the second electrode mechanism.

[0018] The second fixing block of the first electrode mechanism is arranged above the first fixing block of the second electrode mechanism, so that the two electrode springs can respectively apply opposing forces to the two electrode members, thereby increasing the clamping force on the electrode wire.

[0019] In a further embodiment of the first aspect, the rotating mechanism includes: a fixed frame, a rotating motor, a rotating driving gear, a rotating driven gear and a rotating frame.

[0020] The fixed frame is installed on the lifting device of the punching machine, the rotating motor and the rotating passive gear are installed on the fixed frame, the rotating driving gear is installed on the rotating motor, the rotating driving gear is meshed with the passive gear, and the rotating frame is installed on the rotating passive gear.

[0021] The electrode mechanism and the wire pressing wheel mechanism are installed on the rotating frame.

[0022] In a further embodiment of the first aspect, the guide member is installed on the rotating mechanism, so that the rotating mechanism drives the guide member to rotate.

[0023] In a further embodiment of the first aspect, the perforating wire feeding device includes: a first guide member and a second guide member, the electrode mechanism and the wire pressing wheel mechanism are arranged between the first guide member and the second guide member, and the second guide member is arranged on the side of the wire pressing wheel mechanism close to the workpiece.

[0024] In a second aspect, the punching machine includes: a frame, a lifting device, the wire feeding device described in the first aspect, and an electrode wire.

[0025] The lifting device is installed on the frame, and the wire feeding device is installed on the lifting device.

[0026] The beneficial effects of the present invention are as follows: the present application fixes the electrode wire at one end of the electrode wire close to the workpiece through the electrode mechanism and the wire pressing wheel mechanism, and then the wire pressing wheel mechanism feeds the wire from the end of the electrode wire close to the workpiece, which is not limited in the length of the electrode wire away from the end of the workpiece and can greatly extend the length of the electrode wire, thereby solving the problem of the short length of the electrode wire that can be used in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall axonometric schematic diagram of the punching wire feeding device of the present invention.

[0028] Figure 2 It is another angle axonometric schematic diagram of the perforating wire feeding device of the present invention.

[0029] Figure 3 It is a schematic diagram of an embodiment of the present invention in which the wire pressing wheel mechanism is installed on the rotating mechanism.

[0030] Figure 4 It is a schematic diagram of the coordination of the active wire pressing wheel, the passive wire pressing wheel, the active wire feeding gear and the passive wire feeding gear of the present invention.

[0031] Figure 5 It is a schematic diagram of the electrode mechanism of the present invention.

[0032] Figure 6 It is a schematic diagram of a puncher of the present invention.

[0033] The reference numerals shown in the figure are: rotating mechanism 1, fixed frame 11, rotating motor 12, rotating active gear 13, rotating passive gear 14, rotating frame 15, first wire pressing wheel mechanism 21, second wire pressing wheel mechanism 22, wire feeding guide mechanism 201, wire feeding spring 202, wire feeding frame 203, active wire pressing wheel 204, passive wire pressing wheel 205, wire feeding active gear 206, wire feeding passive gear 207, first electrode mechanism 31, second electrode mechanism 32, first fixed block 301, second fixed block 302, electrode spring 303, electrode guide assembly 304, electrode member 305, first guide member 41, second guide member 42, barrel 5, frame 6, lifting device 7, electrode wire 8. DETAILED DESCRIPTION

[0034] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0035] The present application discloses a perforating wire feeding device and a perforating machine. The perforating wire feeding device is connected to a control device such as a PLC of the perforating machine, and the operation of the perforating wire feeding device is controlled by the control device. The perforating wire feeding device fixes and feeds the end of the electrode wire close to the workpiece through a wire pressing wheel mechanism, and can not limit the length of the electrode wire away from the end of the workpiece, thereby solving the problem of the short length of the electrode wire that can be used in the prior art.

[0036] In the first aspect, the perforating wire feeding device is installed on the lifting device 7 of the perforating machine, and the perforating wire feeding device includes: a rotating mechanism 1, an electrode mechanism, a wire pressing wheel mechanism and a wire guide.

[0037] The rotating mechanism 1 and the wire guide are installed on the lifting device 7 of the punching machine, the electrode mechanism and the wire pressing wheel mechanism are installed on the rotating mechanism 1, the wire pressing wheel mechanism is arranged below the electrode mechanism, and the wire guide is arranged below the wire pressing wheel mechanism.

[0038] The rotating mechanism 1 is used to drive the electrode mechanism and the wire pressing wheel mechanism to rotate, the electrode mechanism is used to clamp the electrode wire 8, and the wire pressing wheel mechanism is used to clamp and drive the electrode wire 8 to move.

[0039] exist Figure 1 and 6 In the illustrated embodiment, the perforating wire feeding device further comprises: a barrel 5 , which is installed on the perforating machine and is used for winding the electrode wire 8 .

[0040] Regarding the rotating mechanism 1, Figure 1 The rotating mechanism 1 shown includes: a fixed frame 11 , a rotating motor 12 , a rotating driving gear 13 , a rotating driven gear 14 and a rotating frame 15 .

[0041] The fixed frame 11 is installed on the lifting device 7 of the punching machine, the rotating motor 12 and the rotating passive gear 14 are installed on the fixed frame 11, the rotating driving gear 13 is installed on the rotating motor 12, the rotating driving gear 13 is meshed with the passive gear, and the rotating frame 15 is installed on the rotating passive gear 14.

[0042] The electrode mechanism and the wire pressing wheel mechanism are installed on the rotating frame 15 .

[0043] The rotating mechanism 1 is used to drive the electrode mechanism and the wire pressing wheel mechanism to rotate around the electrode wire 8. The electrode mechanism and the wire pressing wheel mechanism drive the electrode wire 8 to rotate. The rotating mechanism 1 is used to drive the electrode mechanism and the wire pressing wheel mechanism to rotate reciprocatingly. The electrode wire 8 can be driven to rotate by the rotation of the electrode mechanism and the wire pressing wheel mechanism.

[0044] Regarding the thread pressing wheel mechanism, Figure 1-4 The first wire pressing wheel mechanism 21 and the second wire pressing wheel mechanism 22 are shown, and the electrode mechanism is arranged between the first wire pressing wheel mechanism 21 and the second wire pressing wheel mechanism 22.

[0045] The second wire pressing wheel mechanism 22 is arranged on a side of the electrode mechanism close to the workpiece.

[0046] During the perforating operation, the speed at which the electrode wire 8 is driven to move by the second wire pressing wheel mechanism 22 is greater than the speed at which the electrode wire 8 is driven to move by the first wire pressing wheel mechanism 21 .

[0047] The wire pressing wheel mechanism includes: a wire feeding guide mechanism 201 , a wire feeding spring 202 , a wire feeding frame 203 , a wire feeding motor, an active wire pressing wheel 204 , a passive wire pressing wheel 205 , a wire feeding active gear 206 and a wire feeding passive gear 207 .

[0048] Two wire feeding guide mechanisms 201 are installed on the rotating mechanism 1, two wire feeding racks 203 are installed on the two wire feeding guide mechanisms 201 respectively, the wire feeding spring 202 is installed between the wire feeding rack 203 and the rotating mechanism 1, the wire feeding motor is installed on one wire feeding rack 203, the active wire pressing wheel 204 and the wire feeding active gear 206 are installed on the wire feeding motor, the passive wire pressing wheel 205 and the wire feeding passive gear 207 are installed on the other wire feeding rack 203, the active wire pressing wheel 204 is connected to the wire feeding active gear 206, the passive wire pressing wheel 205 is connected to the wire feeding passive gear 207, and the wire feeding active gear 206 is meshed with the wire feeding passive gear 207.

[0049] exist Figure 1 and 3In the illustrated embodiment, the first wire pressing wheel mechanism 21 and the second wire pressing wheel mechanism 22 share a set of wire feeding guide mechanism 201, wire feeding spring 202 and wire feeding frame 203. In other embodiments, only one set of wire feeding guide mechanism 201, wire feeding spring 202 and wire feeding frame 203 may be provided. One of the wire feeding motor and the passive wire pressing wheel 205 of the wire pressing wheel mechanism is installed on the rotating frame 15 of the rotating mechanism 1, and the other is installed on the wire feeding frame 203.

[0050] Regarding the electrode mechanism, Figure 5 The electrode mechanism shown includes: a first fixing block 301 , a second fixing block 302 , an electrode spring 303 , an electrode guide assembly 304 and an electrode member 305 .

[0051] The first fixed block 301 and the second fixed block 302 are installed on the rotating mechanism 1, the electrode guide assembly 304 is installed on the first fixed block 301, the electrode member 305 is installed on the electrode guide assembly 304, and the electrode spring 303 is installed between the electrode member 305 and the first fixed block 301. The electrode spring 303 is used to apply a force to the electrode member 305 toward the second fixed block 302, so that the electrode member 305 and the second fixed block 302 clamp the electrode wire 8.

[0052] like Figure 1 The perforating wire feeding device shown includes: a first electrode mechanism 31 and a second electrode mechanism 32 .

[0053] The first fixing block 301 of the first electrode mechanism 31 is disposed above the second fixing block 302 of the second electrode mechanism 32 .

[0054] The second fixing block 302 of the first electrode mechanism 31 is disposed above the first fixing block 301 of the second electrode mechanism 32 .

[0055] The wire feeding guide mechanism 201 and the electrode guide assembly 304 may be a combination of a linear bearing and a linear shaft, or a combination of a slider and a guide rail.

[0056] The electrode mechanism is installed on the wire feeding frame 203 of the wire pressing wheel mechanism, so that the electrode mechanism is installed on the rotating frame 15 of the rotating mechanism 1 through the wire pressing wheel mechanism.

[0057] Regarding guides, Figure 1 and 2 The guide member shown is installed on the rotating mechanism 1, so that the rotating mechanism 1 drives the guide member to rotate, that is, the guide member is installed on the lifting device 7 of the punching machine through the rotating mechanism 1, so that the rotating mechanism 1 and the guide member are installed on the same lifting device 7. Compared with the prior art, the number of lifting devices 7 is reduced, thereby reducing the cost of the punching machine.

[0058] like Figure 1 and 2The perforating wire feeding device shown includes: a first guide member 41 and a second guide member 42, the electrode mechanism and the wire pressing wheel mechanism are arranged between the first guide member 41 and the second guide member 42, and the second guide member 42 is arranged on the side of the wire pressing wheel mechanism close to the workpiece.

[0059] The first guide member 41 and the second guide member 42 are provided with eye molds matching the shape of the electrode wire 8 .

[0060] Second, as Figure 6 The piercing machine shown includes: a frame 6, a lifting device 7, a wire feeding device of the first aspect, and an electrode wire 8.

[0061] The lifting device 7 is installed on the frame 6, the wire feeding device is installed on the lifting device 7, and the electrode wire 8 is installed on the wire feeding device. The wire feeding device is used to drive the electrode wire 8 to move.

[0062] In this embodiment, the electrode wire 8 is a copper wire. The electrode wire 8 can be a cylindrical structure according to the prior art, or a cylindrical structure with a side plane that cooperates with the rotating mechanism 1 to make the hole formed by the electric spark punching process circular. At this time, the eye molds of the two guide parts cooperate with the shape of the electrode wire 8 to drive the electrode wire 8, the electrode mechanism and the wire pressing wheel mechanism to rotate synchronously.

[0063] The frame 6 is provided with a workbench and a liquid supply system. The workbench is used to clamp the workpiece, connect the workpiece to the electrode, and drive the workpiece to move horizontally. The liquid supply system delivers fluid to the processing part of the workpiece to flush out the waste residue during processing. The lifting device 7 is a vertically arranged screw mechanism or electric cylinder mechanism, such as Figure 6 The barrel 5 of the punching wire feeding device is mounted on a frame 6 of the punching machine.

[0064] Working method: The electrode wire 8 wound by the barrel 5 passes through the electrode mechanism, the wire pressing wheel mechanism and the wire guide, and the workpiece is clamped on the workbench.

[0065] The workbench drives the part of the workpiece to be processed to move to the bottom of the perforating wire feeding device, and then the lifting device 7 drives the perforating wire feeding device to move toward the workpiece. The control equipment of the punching machine controls the electrode wire 8 and the workpiece to connect the electrodes respectively, and the wire pressing wheel mechanism drives the electrode wire 8 on the barrel 5 to move toward the workpiece to realize electric spark perforation on the workpiece.

[0066] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A perforating wire feeding device, which is installed on the lifting device of the perforating machine; It is characterized in that The perforating wire feeding device comprises: a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism and a wire guide; The rotating mechanism and the wire guide are installed on the lifting device of the punching machine, the electrode mechanism and the wire pressing wheel mechanism 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 rotating mechanism is used to drive the electrode mechanism and the wire pressing wheel mechanism to rotate, the electrode mechanism is used to clamp the electrode wire, and the wire pressing wheel mechanism is used to clamp and drive the electrode wire to move.

2. A perforating wire feeding device according to claim 1, characterized in that: Also includes: A barrel, which is mounted on the punching machine, is used to wind the electrode wire.

3. A perforating wire feeding device according to claim 1, characterized in that: include: A first wire pressing wheel mechanism and a second wire pressing wheel mechanism, wherein the electrode mechanism is arranged between the first wire pressing wheel mechanism and the second wire pressing wheel mechanism; The second wire pressing wheel mechanism is arranged on a side of the electrode mechanism close to the workpiece; During the perforation operation, the speed at which the electrode wire is driven to move by the second wire pressing wheel mechanism is greater than the speed at which the electrode wire is driven to move by the first wire pressing wheel mechanism.

4. A perforating wire feeding device according to claim 1, characterized in that: The wire pressing wheel mechanism comprises: a wire feeding guide mechanism, a wire feeding spring, a wire feeding frame, a wire feeding motor, an active wire pressing wheel, a passive wire pressing wheel, a wire feeding active gear and a wire feeding passive gear; The two wire feeding guide mechanisms are installed on the rotating mechanism, the two wire feeding racks are installed on the two wire feeding guide mechanisms respectively, the wire feeding spring is installed between the wire feeding rack and the rotating mechanism, the wire feeding motor is installed on one wire feeding rack, the active wire pressing wheel and the wire feeding active gear are installed on the wire feeding motor, the passive wire pressing wheel and the wire feeding passive gear are installed on the other wire feeding rack, the active wire pressing wheel is connected to the wire feeding active gear, the passive wire pressing wheel is connected to the wire feeding passive gear, and the wire feeding active gear is meshed with the wire feeding passive gear.

5. A perforating wire feeding device according to claim 1, characterized in that: The electrode mechanism comprises: a first fixing block, a second fixing block, an electrode spring, an electrode guide assembly and an electrode member; The first fixed block and the second fixed block are installed on the rotating mechanism, the electrode guide assembly is installed on the first fixed block, the electrode member is installed on the electrode guide assembly, the electrode spring is installed between the electrode member and the first fixed block, and the electrode spring is used to apply a force to the electrode member toward the second fixed block so that the electrode member and the second fixed block clamp the electrode wire.

6. A perforating wire feeding device according to claim 5, characterized in that: include: a first electrode mechanism and a second electrode mechanism; The first fixing block of the first electrode mechanism is arranged above the second fixing block of the second electrode mechanism; The second fixing block of the first electrode mechanism is arranged above the first fixing block of the second electrode mechanism.

7. A perforating wire feeding device according to claim 1, characterized in that: The rotating mechanism comprises: a fixed frame, a rotating motor, a rotating driving gear, a rotating driven gear and a rotating frame; The fixed frame is installed on the lifting device of the punching machine, the rotating motor and the rotating passive gear are installed on the fixed frame, the rotating driving gear is installed on the rotating motor, the rotating driving gear is meshed with the passive gear, and the rotating frame is installed on the rotating passive gear; The electrode mechanism and the wire pressing wheel mechanism are installed on the rotating frame.

8. A perforating wire feeding device according to claim 1, characterized in that: The guide member is installed on the rotating mechanism, so that the rotating mechanism drives the guide member to rotate.

9. A perforating wire feeding device according to claim 8, characterized in that: include: A first guide and a second guide, the electrode mechanism and the wire pressing wheel mechanism are arranged between the first guide and the second guide, and the second guide is arranged on a side of the wire pressing wheel mechanism close to the workpiece.

10. A punching machine, characterized in that: include: A frame, a lifting device, a wire feeding device according to any one of claims 1 to 9, and an electrode wire; The lifting device is installed on the frame, the wire feeding device is installed on the lifting device, the electrode wire is installed on the wire feeding device, and the wire feeding device is used to drive the electrode wire to move.

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