A piercing wire feeder and a piercing machine

Abstract

The application discloses a kind of perforating wire feeding device and perforating machine, belong to electric spark perforating machine technical field.The perforating wire feeding device includes: rotating mechanism, electrode mechanism, pressure wire wheel mechanism and guide wire piece, rotating mechanism and guide wire piece are installed in the lifting device of perforating machine, electrode mechanism and pressure wire wheel mechanism are installed in rotating mechanism, pressure wire wheel mechanism is set below electrode mechanism, guide wire piece is set below pressure wire wheel mechanism, rotating mechanism is used to drive electrode mechanism and pressure wire wheel mechanism to rotate, electrode mechanism is used to clamp electrode wire, and pressure wire wheel mechanism is used to clamp and drive electrode wire to move.The application can not limit the length of electrode wire far away from workpiece end, solve the problem that the length of electrode wire used in prior art is shorter.

Description

Technical Field

[0001] This invention belongs to the field of electrical discharge drilling machines, specifically a drilling wire feeding device and a drilling machine. Background Technology

[0002] In the prior art, the wire feeding device of the EDM drilling machine includes a chuck and a wire guide tube. The wire guide tube is set 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 drilling machine drives the electrode wire through the wire guide tube to feed the wire towards the workpiece via the chuck. The length of the electrode wire is limited by the distance between the chuck and the workpiece, resulting in the problem that the electrode wire length that can be used in the prior art is relatively short. Summary of the Invention

[0003] Purpose of the invention: To provide a wire feeding device and a wire feeding machine for piercing, 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 end of the electrode wire away from the workpiece, thus solving the problem of the short length of the electrode wire that can be used in the prior art.

[0004] The technical solution of the present invention is as follows: Firstly, a wire feeding device for piercing is installed on the lifting device of a piercing machine.

[0005] The wire feeding device includes: a rotating mechanism, an electrode mechanism, a pressure roller mechanism, and a wire guide.

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

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

[0008] In a further embodiment of the first aspect, the wire feeding device further includes: a barrel, which is mounted on the piercing machine, for winding the electrode wire, capable of fixing the 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 piercing wire feeding device includes: a first pressure roller mechanism and a second pressure roller mechanism, wherein the electrode mechanism is disposed between the first pressure roller mechanism and the second pressure roller mechanism.

[0010] The second pressure roller mechanism is located on the side of the electrode mechanism closer to the workpiece.

[0011] During the piercing process, the second pressure wheel mechanism drives the electrode wire to move at a speed greater than that of the first pressure wheel mechanism, which enables the electrode wire to maintain a certain tension during its 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] Two wire feeding guide mechanisms are mounted on the rotating mechanism, and two wire feeding frames are respectively mounted on the two wire feeding guide mechanisms. The wire feeding spring is mounted between the wire feeding frame and the rotating mechanism. The wire feeding motor is mounted on one wire feeding frame. The active wire pressing wheel and the active wire feeding gear are mounted on the wire feeding motor. The passive wire pressing wheel and the passive wire feeding gear are mounted on the other wire feeding frame. The active wire pressing wheel and the active wire feeding gear are connected, and the passive wire pressing wheel and the passive wire feeding gear are connected. The active wire feeding gear and the passive wire feeding gear mesh. Through the wire feeding guide mechanisms and the wire feeding spring, the active wire pressing wheel and the passive wire pressing wheel can have sufficient clamping force on the electrode wire and can also adapt to the diameter of the electrode wire. Through the meshing of the active wire feeding gear and the passive wire feeding gear, the passive wire feeding gear drives the passive wire pressing wheel to rotate synchronously with the active wire pressing wheel, which can ensure the stability of the electrode wire movement.

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

[0015] The first fixing block and the second fixing block are mounted on the rotating mechanism. The electrode guide assembly is mounted on the first fixing block. The electrode is mounted on the electrode guide assembly. The electrode spring is mounted between the electrode and the first fixing block. The electrode spring is used to apply a force to the electrode toward the second fixing block, so that the electrode and the second fixing 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 disposed above the second fixing block of the second electrode mechanism.

[0018] The second fixing block of the first electrode mechanism is disposed above the first fixing block of the second electrode mechanism, which enables the two electrode springs to apply opposing forces to the two electrode components respectively, thereby improving 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 drive gear, a rotating driven gear, and a rotating frame.

[0020] The fixed frame is installed on the lifting device of the perforating machine, the rotary motor and the rotary driven gear are installed on the fixed frame, the rotary driving gear is installed on the rotary motor, the rotary driving gear and the driven gear mesh, and the rotary frame is installed on the rotary driven gear.

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

[0022] In a further embodiment of the first aspect, the guide is mounted on a rotating mechanism, causing the rotating mechanism to drive the guide to rotate.

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

[0024] Secondly, the perforating 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 mounted on the frame, and the wire feeding device is mounted on the lifting device.

[0026] The beneficial effects of this invention are: by fixing the electrode wire at the end of the electrode wire close to the workpiece through the electrode mechanism and the wire pressing wheel mechanism, and then feeding the wire from the end of the electrode wire close to the workpiece through the wire pressing wheel mechanism, the length of the electrode wire away from the workpiece is not limited, and the length of the electrode wire can be greatly extended, thus solving the problem of the short length of the electrode wire that can be used in the prior art. Attached Figure Description

[0027] Figure 1 This is an isometric schematic diagram of the perforated wire feeding device of the present invention.

[0028] Figure 2 This is an isometric view of the perforated wire feeding device of the present invention from another angle.

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

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

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

[0032] Figure 6 This is a schematic diagram of the perforation machine of the present invention.

[0033] The reference numerals in the figure are as follows: rotating mechanism 1, fixed frame 11, rotating motor 12, rotating drive gear 13, rotating driven 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, drive wire pressing wheel 204, driven wire pressing wheel 205, wire feeding drive gear 206, wire feeding driven 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 component 305, first guide component 41, second guide component 42, material cylinder 5, frame 6, lifting device 7, electrode wire 8. Detailed Implementation

[0034] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

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

[0036] Firstly, the wire feeding device is installed on the lifting device 7 of the piercing machine. The wire feeding device includes: a rotating mechanism 1, an electrode mechanism, a pressure wheel mechanism, and a wire guide.

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

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

[0039] exist Figure 1 and 6 In the embodiment shown, the piercing wire feeding device further includes a material cylinder 5, which is installed on the piercing machine and is used to wind the electrode wire 8.

[0040] Regarding rotating mechanism 1, as follows Figure 1 The rotating mechanism 1 shown includes: a fixed frame 11, a rotating motor 12, a rotating drive 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 rotary motor 12 and the rotary driven gear 14 are installed on the fixed frame 11. The rotary driving gear 13 is installed on the rotary motor 12. The rotary driving gear 13 and the driven gear mesh. The rotating frame 15 is installed on the rotary driven gear 14.

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

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

[0044] Regarding the pressure roller mechanism, such as Figure 1-4 The first pressing wheel mechanism 21 and the second pressing wheel mechanism 22 are shown, and the electrode mechanism is disposed between the first pressing wheel mechanism 21 and the second pressing wheel mechanism 22.

[0045] The second pressure roller mechanism 22 is located on the side of the electrode mechanism closer to the workpiece.

[0046] During the piercing process, the speed at which the second pressure wheel mechanism 22 drives the electrode wire 8 to move is greater than the speed at which the first pressure wheel mechanism 21 drives the electrode wire 8 to move.

[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 frames 203 are respectively installed on the two wire feeding guide mechanisms 201. A wire feeding spring 202 is installed between the wire feeding frame 203 and the rotating mechanism 1. A wire feeding motor is installed on one wire feeding frame 203. An active wire pressing wheel 204 and a wire feeding active gear 206 are installed on the wire feeding motor. A passive wire pressing wheel 205 and a wire feeding passive gear 207 are installed on the other wire feeding frame 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. The wire feeding active gear 206 and the wire feeding passive gear 207 mesh.

[0049] exist Figure 1 and 3In the illustrated embodiment, the first pressing wheel mechanism 21 and the second 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 pressing wheel 205 of the 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, such as 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 component 305.

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

[0052] like Figure 1 The perforated 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 can be a combination of linear bearings and linear shafts, or a combination of sliders and guide rails.

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

[0057] Regarding guide components, such as Figure 1 and 2 The guide component shown is installed on the rotating mechanism 1, which causes the rotating mechanism 1 to drive the guide component to rotate. That is, the guide component is installed on the lifting device 7 of the piercing machine through the rotating mechanism 1, so that the rotating mechanism 1 and the guide component are installed on the same lifting device 7. Compared with the prior art, the number of lifting devices 7 is reduced, and the cost of the piercing machine is reduced.

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

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

[0060] Secondly, such as Figure 6 The perforating machine shown includes: a frame 6, a lifting device 7, a wire feeding device in 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 of the prior art, or a cylindrical structure with a side plane. It works with the rotating mechanism 1 to make the hole produced by the electrical discharge machining circular. At this time, the eye molds of the two guides are matched 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 equipped with a worktable and a liquid supply system. The worktable is used to clamp the workpiece, connect the workpiece to the electrode, and move the workpiece horizontally. The liquid supply system delivers fluid to the workpiece's machining area to flush out processing waste. The lifting device 7 is a vertically arranged lead screw mechanism or electric cylinder mechanism, such as... Figure 6 The feed cylinder 5 of the piercing wire feeding device shown is installed on the frame 6 of the piercing machine.

[0064] Working method: Pass the electrode wire 8 wound on the cylinder 5 through the electrode mechanism, the wire pressing wheel mechanism and the wire guide, and clamp the workpiece on the worktable.

[0065] The worktable moves the workpiece to be processed to below the wire feeding device. Then, the lifting device 7 moves the wire feeding device toward the workpiece. The control equipment of the piercing machine controls the electrode wire 8 and the workpiece to connect the electrodes. The wire pressing wheel mechanism moves the electrode wire 8 on the material cylinder 5 toward the workpiece to realize the electric spark piercing on the workpiece.

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

Claims

1. A wire feeding device for piercing, which is installed on the lifting device of a piercing machine; Its features are, The wire feeding device includes: a rotating mechanism, an electrode mechanism, a wire pressing wheel mechanism, and a guide component; The rotating mechanism and guide are mounted on the lifting device of the piercing machine, and the electrode mechanism and the wire pressing wheel mechanism are mounted on the rotating mechanism; The rotating mechanism is used to drive the electrode mechanism and the pressure wheel mechanism to reciprocate. The electrode mechanism is used to clamp the electrode wire, and the pressure wheel mechanism is used to clamp and drive the electrode wire to move. The rotating mechanism drives the electrode wire to rotate through the rotation of the electrode mechanism and the pressure wheel mechanism. It also includes: a barrel, which is installed on the piercing machine and is used to wind the electrode wire; The pressing wheel mechanism includes: a first pressing wheel mechanism and a second pressing wheel mechanism, and the electrode mechanism is disposed between the first pressing wheel mechanism and the second pressing wheel mechanism; The second pressure roller mechanism is located on the side of the electrode mechanism closer to the workpiece; During the piercing process, the speed at which the electrode wire is moved by the second pressure wheel mechanism is greater than the speed at which the electrode wire is moved by the first pressure wheel mechanism. The electrode mechanism includes: a first electrode mechanism and a second electrode mechanism; Both the first electrode mechanism and the second electrode mechanism include: a first fixing block, a second fixing block, an electrode spring, an electrode guide assembly, and an electrode component; The first fixing block and the second fixing block are mounted on the rotating mechanism. The electrode guide assembly is mounted on the first fixing block. The electrode is mounted on the electrode guide assembly. The electrode spring is mounted between the electrode and the first fixing block. The electrode spring is used to apply a force toward the second fixing block to the electrode, so that the electrode and the second fixing block clamp the electrode wire. The first fixing block of the first electrode mechanism is disposed above the second fixing block of the second electrode mechanism; The second fixing block of the first electrode mechanism is disposed above the first fixing block of the second electrode mechanism; The guide component is mounted on the rotating mechanism, which drives the guide component to rotate. The guide includes a first guide and a second guide, with the electrode mechanism and the wire pressing wheel mechanism disposed between the first guide and the second guide, and the second guide disposed on the side of the wire pressing wheel mechanism closer to the workpiece.

2. The wire feeding device according to claim 1, characterized in that, Both the first and second pressing roller mechanisms include: a wire feeding guide mechanism, a wire feeding spring, a wire feeding frame, a wire feeding motor, an active pressing roller, a passive pressing roller, a wire feeding active gear, and a wire feeding passive gear; Two wire feeding guide mechanisms are mounted on the rotating mechanism, and two wire feeding frames are respectively mounted on the two wire feeding guide mechanisms. The wire feeding spring is mounted between the wire feeding frame and the rotating mechanism. The wire feeding motor is mounted on one wire feeding frame. The active wire pressing wheel and the active wire feeding gear are mounted on the wire feeding motor. The passive wire pressing wheel and the passive wire feeding gear are mounted on the other wire feeding frame. The active wire pressing wheel and the active wire feeding gear are connected, and the passive wire pressing wheel and the passive wire feeding gear are connected. The active wire feeding gear and the passive wire feeding gear mesh.

3. The perforated wire feeding device according to claim 1, characterized in that, The rotating mechanism includes: a fixed frame, a rotary motor, a rotary drive gear, a rotary driven gear, and a rotating frame; The fixed frame is installed on the lifting device of the perforating machine, the rotary motor and the rotary driven gear are installed on the fixed frame, the rotary driving gear is installed on the rotary motor, the rotary driving gear and the driven gear mesh, and the rotary frame is installed on the rotary driven gear. The electrode mechanism and the wire pressing wheel mechanism are mounted on the rotating frame.

4. A punching machine, characterized in that, include: The frame, the lifting device, the perforating wire feeding device according to any one of claims 1-3, and the electrode wire; The lifting device is mounted on the frame, the wire feeding device is mounted on the lifting device, the electrode wire is mounted on the wire feeding device, and the wire feeding device is used to move the electrode wire.

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