Electric spark multi-wire cutting auxiliary device
By designing an electric spark multi-wire cutting auxiliary device, using components such as mounting frames and guide wheels to form multiple interval arrangements, the problem of electric spark multi-wire cutting in the prior art needs to be modified, and the cutting efficiency is improved and the reduction is reduced. The cost.
Patent Information
- Application Number
- CN202421084588.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the prior art, electric spark multi-wire cutting requires redesign of the machine tool, which has large amount of modification and is not compatible with old machine tools, resulting in increased production costs and inefficiency.
Design an electric spark multi-wire cutting auxiliary device, including a mounting frame, guide wheel, insulating member and conductive member, through these components, the electrode wire is guided into multiple spaced arrangements, avoiding the direct electrical connection between the electrode wire and the machine tool, and realizing the Multi-wire cutting without the need to modify the machine tool.
It realizes the efficiency of electric spark multi-wire cutting without renovating the machine tool, reduces production costs, and solves the compatibility problem of old machine tools.
Smart Images
Figure CN222268941U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wire electrode discharge machining, in particular to an electric spark multi-wire cutting auxiliary device. Background Art
[0002] With the development of semiconductors, there are more and more scenarios where semiconductors are used in existing products, and silicon is the most widely used in semiconductors. Silicon is generally used in the form of silicon wafers, which are usually cut from silicon rods. Specifically, wire saws are often used for cutting in the prior art. During the wire saw cutting process, a large stress will be generated between the wire saw and the silicon rod to be cut, resulting in large stress damage on the surface of the workpiece, which is not conducive to meeting the large size and ultra-thin processing requirements of silicon wafers. Therefore, there is also a method in the prior art for processing silicon rods using electrospark machining technology.
[0003] Electrospark machining is a processing method that uses pulse discharge to generate electro-erosion to remove materials. There is no macro-cutting force during the processing process. It has a good processing effect on hard and brittle semiconductor materials and can meet the processing requirements of large size and ultra-thin. However, traditional electrospark wire cutting machine tools only have one electrode wire, and can only cut one silicon wafer in a single processing, and the processing efficiency is low. There are also multi-wire cutting electrospark machines (i.e. machine tools) in the prior art. For example, the invention patent application published on August 19, 2009 and with the publication number CN101508042A discloses a method and device for follow-up electrospark machining of high-resistance semiconductor materials, wherein the device includes a wire storage drum, a guide wheel fixed on an upper wire rack, a lower wire rack (the upper wire rack and the lower wire rack constitute a wire rack) and a column, and the electrode wire is wound around the guide wheel for multiple turns, and the multiple turns of the electrode wire are arranged at intervals from each other, so that the electrode wire is arranged in parallel and at intervals between two adjacent guide wheels, which is convenient for cutting the same semiconductor material at different positions simultaneously, and multiple semiconductor wafers can be formed in one processing, thereby improving the processing efficiency.
[0004] However, the above technical solution requires redesigning the machine tool, which involves a large amount of work and will increase the production and processing costs of the machine tool. In addition, it is not applicable to wire-cut EDM machines that have already been manufactured and sold. Utility Model Content
[0005] The utility model aims to provide an auxiliary device for multi-wire electric spark cutting, which is used to solve the problem in the prior art that multi-wire electric spark cutting requires redesign of machine tools, requires a large amount of modification and is not compatible with old machine tools.
[0006] In order to achieve the above-mentioned purpose, the electric spark multi-wire cutting auxiliary device in the utility model adopts the following technical solutions:
[0007] An electric spark multi-wire cutting auxiliary device includes a mounting frame, on which a fixing structure for mounting and fixing on a wire rack or a column of a machine tool is provided, at least three guide wheels are provided in the same plane on the mounting frame, each guide wheel is provided with at least two guide grooves arranged at intervals for accommodating an electrode wire, and the electric spark multi-wire cutting auxiliary device also includes an insulating member for maintaining insulation between the electrode wire and the installed wire rack or between the electrode wire and the installed column.
[0008] Furthermore, the fixing structure is a fixing frame connected to the mounting frame, the fixing frame includes at least one group of clamps arranged opposite to each other for clamping on the wire rack or the column, each clamp is provided with mounting holes on both ends extending beyond the wire rack or the column when in use, and the fixing frame also includes a connecting rod that fixes the two clamps in each group through the mounting holes.
[0009] Furthermore, the mounting frame is provided with at least two connecting rod through-holes for the connecting rod to pass through.
[0010] Furthermore, the mounting frame includes a mounting plate and a support plate arranged in parallel and at intervals, the mounting plate is provided with the fixing structure, the mounting plate and the support plate are respectively provided with the guide wheels, and the mounting frame also includes a support member fixedly connected between the mounting plate and the support plate.
[0011] Furthermore, the support member is a support rod, and at least two support rods are provided. The ends of the support rods are respectively provided with mounting thread sections for fitting with the mounting plate and supporting thread sections for fitting with the support plate. Mounting nuts are respectively provided on the mounting thread sections and on both sides of the mounting plate, and support nuts are respectively provided on both sides of the support thread sections and on the support plate.
[0012] Furthermore, a bearing seat for mounting the guide wheel is fixedly provided on the mounting frame, and limiting grooves for limiting the bearing seat are provided on the mounting plate and the support plate.
[0013] Furthermore, the guide wheel is an insulating guide wheel, which constitutes the insulating member. An insulating seat is also provided on the mounting frame, and a conductive member is provided on the insulating seat for contacting multiple electrode wires in the guide groove of the guide wheel to electrically connect the multiple spaced electrode wires.
[0014] Furthermore, the conductive member is a conductive rod, and a pressing and tensioning portion for pressing and tensioning the electrode wire is formed on the outer circumferential surface of the conductive rod.
[0015] Furthermore, the mounting frame includes a mounting plate and a support plate arranged in parallel and at intervals, the mounting plate is provided with the connecting rod through-hole, and at least one side of the mounting plate is also provided with an avoidance groove for avoiding the clamping plate so that the clamping plate is close to the wire rack or the column.
[0016] Furthermore, the EDM multi-wire cutting auxiliary device also includes a liquid spray base fixedly arranged on a wire rack or a column, a universal liquid spray pipe is arranged on the liquid spray base, and a working fluid interface for connecting to a working fluid pipe on a machine tool is arranged on the universal liquid spray pipe.
[0017] The beneficial effects of the electric spark multi-wire cutting auxiliary device in the utility model are: the utility model pioneeringly proposes an electric spark multi-wire cutting auxiliary device, wherein by setting a mounting frame, it is convenient to fix the device on the machine tool, which is convenient for additional installation operations on the machine tool, and also convenient for the installation of the guide wheel; by setting at least three guide wheels, and each guide wheel is provided with at least two spaced guide grooves, it is convenient to guide the electrode wire, and to arrange the electrode wire into a plurality of spaced arrangements. The electrical connection between the electrode wire and the wire rack or the electrode wire and the column is avoided by the setting of the insulating part. That is to say, there is no need to modify the machine tool at this time, and only the device needs to be installed on the machine tool additionally, which is convenient for upgrading and modifying the machine tool, thereby solving the problem in the prior art that the electric spark multi-wire cutting needs to redesign the machine tool, the modification is large and it is not compatible with the old machine tool. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model (the electrode wire is not shown);
[0019] Figure 2 It is a structural schematic diagram of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model (showing the electrode wire);
[0020] Figure 3 It is a schematic diagram of the assembly of the bearing seat and the guide wheel of the embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0021] Figure 4 It is a structural schematic diagram of a conductive seat of an embodiment of an electric spark multi-wire cutting auxiliary device in the utility model;
[0022] Figure 5 It is a structural schematic diagram of a clamping plate of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0023] Figure 6 It is a structural schematic diagram of a support plate of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0024] Figure 7 It is a structural schematic diagram of a mounting plate of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0025] Figure 8 It is a structural schematic diagram of the flow guide structure of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0026] Fig. 9 It is a structural schematic diagram of another perspective of the flow guide structure of an embodiment of the electric spark multi-wire cutting auxiliary device in the utility model;
[0027] Fig.10 It is a schematic structural diagram of an embodiment of the electric spark multi-wire cutting auxiliary device of the utility model on a machine tool.
[0028] In the figure: 11, lower wire rack; 12, upper wire rack; 13, column; 14, workbench; 21, clamp; 211, mounting hole; 22, connecting rod; 31, mounting plate; 311, connecting rod through hole; 312, avoidance groove; 32, support plate; 33, support rod; 41, bearing seat; 42, rotating shaft; 43, guide wheel; 431, guide groove; 44, limiting groove; 51, insulating seat; 52, conductive rod; 6, electrode wire; 7, silicon rod; 81, spray base; 811, fixing rod; 812, clamping seat; 813, adapter; 82, universal spray pipe; 83, magnetic switch. DETAILED DESCRIPTION
[0029] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0030] The utility model provides a separate mounting frame, and a guide wheel for guiding the electrode wire is provided on the mounting frame, so that a single strand of electrode wire can be easily wound on the guide wheel to form multiple cutting positions, thereby facilitating the processing of multiple pieces of raw materials at the same time.
[0031] In the embodiment of the electric spark multi-wire cutting auxiliary device (hereinafter referred to as cutting auxiliary device) in the utility model:
[0032] During the machining process, a workbench is provided to fix the workpiece, and a reciprocating electrode wire is provided in the area covered by the workbench or on the feeding route of the workbench. The electrode wire discharges and corrodes the workpiece, thereby machining the workpiece. Fig.10 As shown, taking the processing of silicon rods 7 as an example, the machine tool has a workbench 14 for clamping and fixing the silicon rods 7, and is also provided with a wire rack for guiding and restraining the electrode wire 6. Specifically, the wire rack includes an upper wire rack 12 and a lower wire rack 11, and the upper wire rack 12 and the lower wire rack 11 are arranged at intervals, and the electrode wire 6 passes between the upper wire rack 12 and the lower wire rack 11, and the area where the electrode wire 6 is located between the upper wire rack 12 and the lower wire rack 11 forms a processing area for cutting the silicon rod 7. In order to fix the upper wire rack 12 and the lower wire rack 11, columns 13 are also provided on the upper wire rack 12 and the lower wire rack 11. Of course, in other embodiments, the machine tool can also process other materials.
[0033] like Figure 1 , Figure 2 and Fig.10 As shown, in this embodiment, the cutting auxiliary device is used to be installed on the lower wire rack 11 of the machine tool. Specifically, the cutting auxiliary device includes a mounting frame, on which four guide wheels 43 are arranged. The guide wheels 43 are used to guide the electrode wire 6 so that the electrode wire 6 can be reciprocated between the upper wire rack 12 and the lower wire rack 11, thereby generating multiple sections of cutting parts for cutting the silicon rod 7 between the upper wire rack 12 and the lower wire rack 11. Correspondingly, each guide wheel 43 is provided with at least two guide grooves 431 arranged at intervals for accommodating the electrode wire 6. The guide groove 431 is an annular groove, which is convenient for guiding the electrode wire 6 and also maintains the interval between the adjacent two ends of the electrode wire 6. Of course, in other embodiments, the number of guide wheels can also be changed, and the guide wheels can be set to three, five or other numbers greater than three. Alternatively, in other embodiments, the cutting auxiliary device can also be fixedly set on the upper wire rack or the column.
[0034] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the mounting frame includes a mounting plate 31 for being directly and indirectly arranged on the lower line frame 11, and the mounting frame also includes a support plate 32 arranged in parallel and spaced relation with the mounting plate 31, and a support member is fixedly connected between the support plate 32 and the mounting plate 31. Specifically, the support member is a support rod 33, and two support rods 33 are provided. At both ends of the support rod 33, a mounting threaded section for fitting with the mounting plate 31 and a supporting threaded section for fitting with the support plate 32 are provided, that is, the support rod 33 is a double-headed screw. In order to limit and fix the support plate 32 and the mounting plate 31, mounting nuts are provided on the mounting threaded section and on both sides of the mounting plate 31, and supporting nuts are provided on both sides of the supporting threaded section located on the support plate 32. That is to say, the two mounting nuts on the same support rod 33 complete the limit and fixation of the mounting plate 31, and the two supporting nuts on the same support rod 33 complete the limit and fixation of the support plate 32. When the fixation is completed, the mounting plate 31, the support plate 32 and the two support rods 33 form a rectangular frame structure. The mounting plate 31 and the support plate 32 are fixed by the support rod 33 and the nut, so that the spacing between the mounting plate 31 and the support plate 32 can be adjusted, so as to adapt to more types of machine tools. Of course, in other embodiments, the support member can also be welded on the mounting plate and the support plate, and the support member can no longer be the support rod 33, but can be configured as a support tube or a support block. Of course, in other embodiments, the rectangular frame can also be integrally formed, and the mounting plate, the support plate and the support member are integrally formed. Alternatively, in other embodiments, the support rods are set to three or four or other numbers.
[0035] like Figure 1 , Figure 3, Figure 6 and Figure 7 As shown, the guide wheel 43 guides the electrode wire 6, and the electrode wire 6 is in a state of cyclic reciprocating motion. In order to reduce the resistance of the guide wheel 43 to the electrode wire 6, the guide wheel 43 needs to be rotatably set on the mounting frame. A bearing seat 41 is fixedly set on the mounting plate 31 and the support plate 32, and a bearing is set in the bearing seat 41. The inner ring of the bearing is interference-fitted with a rotating shaft 42. A through hole is set on the guide wheel 43, and the rotating shaft 42 is interference-fitted in the through hole, that is, the guide wheel 43 can rotate relative to the bearing seat 41, and the friction force during the rotation process is small. The electrode wire 6 needs to cyclically reciprocate, and during the movement, it is also restricted by the guide groove 431 of the guide wheel 43. Therefore, it is necessary to keep the guide wheel 43 in the same plane on the mounting frame as much as possible after the installation is completed, especially the corresponding guide groove 431 is also in the same plane, so it is necessary to limit the installation position of the bearing seat 41. A limiting groove 44 for limiting the position of the bearing is provided on both the mounting plate 31 and the support plate 32, and a bolt mounting hole for mounting the bearing seat 41 is provided in the limiting groove 44. The bolt mounting hole can be a threaded hole that is directly mounted with a bolt. Of course, in other embodiments, the bolt mounting hole can also be set as a plain hole, and then additionally a nut is used for installation. Alternatively, in other embodiments, a limiting groove may no longer be provided, but a mark may be provided to limit the position of the bearing seat. Alternatively, in other embodiments, an opening may be directly made on the mounting plate or the support plate, and the guide wheel may be rotatably set on the mounting plate and the support plate.
[0036] like Figure 1 , Figure 5 and Figure 7 As shown, in order to realize the installation of the mounting frame on the machine tool, a fixing frame is also provided, and the fixing frame includes two groups of clamps for clamping on the lower wire frame 11, and each group of clamps includes two clamps 21 arranged oppositely. Each clamp 21 is provided with a mounting hole 211 on both ends that extend beyond the wire frame or the column 13 when in use, and the fixing frame also includes a connecting rod 22 that fixes and connects the two clamps 21 in each group through the mounting hole 211. Specifically, the connecting rod 22 is a double-headed screw. When in use, the screw passes through the mounting hole 211 on the clamp 21, and a clamping nut is provided on the outer side of the double-headed screw located on the clamp 21 to clamp the clamp 21. At this time, the mounting plate 31 and the support plate 32 are both arranged horizontally. Of course, in other embodiments, the width of the clamp can also be increased, and then two mounting holes can be provided on one end of the same clamp. Alternatively, in other embodiments, the fixing frame may no longer be provided, and the mounting frame may be directly provided on the lower wire frame by magnetic attraction or bonding of the mounting plate. Alternatively, in other embodiments, when the clamping plate is mounted on the column, the mounting plate and the supporting plate may also be arranged vertically.
[0037] In order to achieve the relative connection between the fixed frame and the mounting frame, a connecting rod through hole 311 for the connecting rod 22 to pass through is also provided on the mounting plate 31. There are two connecting rod through holes 311, and the two connecting rod through holes 311 can define the plane where the mounting plate 31 is located. The clamping plate 21 on one side is located on the outer side of the mounting plate 31, and a evasion groove 312 for evading the clamping plate 21 is provided on the mounting plate 31. After the clamping plate 21 is fixed, it is accommodated in the evasion groove 312, thereby better allowing the electrode wire 6 to enter the guide groove 431 and the clamping plate 21 and the lower wire frame 11 to be closely attached. In order to facilitate the connection rod 22 to pass through the connecting rod through hole 311, the diameter of the connecting rod through hole 311 is slightly larger than the outer diameter of the connecting rod 22, and the clamping plate 21 does not form an effective limit on the mounting plate 31, so the mounting plate 31 can slide along the axis of the connecting rod 22. When the fixed frame is installed on the machine tool, the position of the mounting frame can also be adaptively self-adjusted during the process of the electrode wire 6 winding on the guide wheel 43. Of course, in other embodiments, nuts may be provided at both ends of the connecting rod located on the mounting plate to limit the position of the mounting plate. Alternatively, in other embodiments, the clamping plate and the mounting plate may be bonded together after installation. Alternatively, in other embodiments, the mounting plate may be welded to the upper surface of the connecting rod.
[0038] like Figure 2 and Figure 4 As shown, during the process of cutting the silicon rod 7, one pole of the pulse power supply is usually connected to the electrode wire 6, and the other pole of the pulse power supply is connected to the silicon rod 7. When the distance between the electrode wire 6 and the silicon rod 7 reaches the discharge gap condition, a pulse discharge will be generated, and the silicon rod 7 will be processed by the electric spark generated by the pulse discharge. Therefore, it is necessary to keep the electrode wire 6 and the frame of the machine tool insulated from each other. Specifically, an insulating member is provided on the cutting auxiliary device. In this embodiment, the guide wheel 43 is set as an insulating guide wheel made of insulating materials such as nylon or ceramic, so that the electrode wire 6 is wound on the insulating guide wheel, and the electrode wire 6 and the bearing seat 41, as well as the mounting plate 31 and the support plate 32 are insulated from each other. Of course, in other embodiments, the splint can also be set as an insulating splint or the rotating shaft can be set as an insulating rotating shaft, or an insulating pad can be set between the splint and the lower wire frame.
[0039] The connection position between the pulse power supply and the electrode wire 6 is generally set on the conductive blocks of the upper wire rack 12 and the lower wire member 11. After the electrode wire 6 is wound, it has multiple cutting points with the silicon rod 7, which easily causes different sections of the electrode wire 6 to have inconsistent cutting effects or cutting capabilities on the silicon rod 7. In order to make the cutting effect of each section of the electrode wire 6 on the silicon rod 7 similar, it is necessary to conduct multiple sections of parallel and spaced electrode wires 6. Specifically, a conductive seat is also provided on the support plate 32, and the conductive seat includes an insulating seat 51 and a conductive member fixedly provided on the insulating seat 51, and the conductive member is a conductive rod 52, and the conductive rod 52 spans across multiple electrode wires 6, so that different electrode wires 6 are electrically connected to each other. In order to improve the contact effect between the conductive rod 52 and the electrode wire 6, the outer peripheral surface of the conductive rod 52 in contact with the electrode wire 6 is higher than the highest point of the guide groove 431 of the two guide wheels 43 on the support plate 32, and the portion of the conductive rod 52 in contact with the electrode wire 6 constitutes a top pressure tensioning portion for top pressure tensioning the electrode wire 6, so that the electrode wire 6 is tensioned by the conductive rod 52 when passing through the conductive rod 52, which facilitates close contact with the conductive rod 52. Of course, in other embodiments, the conductive seat may no longer be provided, but the guide wheel may be provided as a metal guide wheel. At this time, the electrode wire is electrically connected to the metal guide wheel. Of course, at this time, attention should be paid to the provision of the insulating parts to avoid the machine tool frame being electrified. Alternatively, in other embodiments, the conductive seat may also be provided on the mounting plate, and at this time, the outer peripheral surface of the conductive rod for contacting the electrode wire is lower than the lowest point of the guide groove of the two guide wheels on the mounting plate.
[0040] like Figure 8 , Fig. 9 and Fig.10As shown, during the cutting process, the electrode wire 6 needs to cooperate with the working fluid, and a good cutting function is achieved under the lubrication and cooling of the working fluid. Usually, the machine tool is provided with a working fluid pipe connected to the eye mask of the upper wire frame 12, and the working fluid is attached to the electrode wire 6 through the eye mask on the upper wire frame 12. In order to avoid the blocking of the working fluid by the guide wheel 43, the cutting auxiliary device also includes a guide structure for fixing the working fluid pipe on the machine tool to achieve spraying of the processing area. Specifically, the guide structure includes a liquid spraying base 81 for magnetically adsorbing on the upper wire frame 12, a fixing rod 811 is fixedly provided on the liquid spraying base 81, a clamping seat 812 is clamped on the fixing rod 811, and an adapter 813 is inserted on the clamping seat 812. The universal liquid spraying pipe 82 is installed through the adapter 813, and the entrance of the universal liquid spraying pipe 82 constitutes a working fluid interface for connecting the working fluid hose on the machine tool. Correspondingly, the working fluid pipe is also connected to the adapter 813, and the connection between the working fluid pipe and the working fluid interface of the universal liquid spraying pipe 82 is realized through the adapter 813, thereby realizing the indirect connection between the working fluid pipe and the working fluid interface on the universal liquid spraying pipe 82. A magnetic switch 83 is also provided on the liquid spraying base 81, and the magnetic attraction force is controlled by rotating the magnetic switch 83, that is, the upper wire rack is selected for installation. Of course, in other embodiments, the liquid spraying base can also be fixed to the lower wire rack or the column by magnetic attraction. Of course, in other embodiments, the liquid spraying base can also be fixed to the wire rack or the column by bonding. Alternatively, in other embodiments, the adapter is no longer provided, and the working fluid pipe is directly connected to the working fluid interface of the universal liquid spraying pipe.
[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.
Claims
1. An electric spark multi-wire cutting auxiliary device, characterized in that: The electric spark multi-wire cutting auxiliary device includes a mounting frame, on which a fixing structure for mounting and fixing on a wire rack or a column of a machine tool is provided, at least three guide wheels are provided in the same plane on the mounting frame, each guide wheel is provided with at least two guide grooves arranged at intervals for accommodating electrode wires, and the electric spark multi-wire cutting auxiliary device also includes an insulating member for maintaining insulation between the electrode wire and the installed wire rack or between the electrode wire and the installed column.
2. The electric spark multi-wire cutting auxiliary device according to claim 1, characterized in that: The fixing structure is a fixing frame connected to the mounting frame, and the fixing frame includes at least one group of clamps arranged opposite to each other for clamping on the wire rack or the column. Each clamp is provided with mounting holes on both ends extending beyond the wire rack or the column when in use, and the fixing frame also includes a connecting rod that fixes the two clamps in each group through the mounting holes.
3. The electric spark multi-wire cutting auxiliary device according to claim 2, characterized in that: The mounting frame is provided with at least two connecting rod through-holes for the connecting rod to pass through.
4. The electric spark multi-wire cutting auxiliary device according to any one of claims 1 to 3, characterized in that: The mounting frame includes a mounting plate and a support plate which are arranged in parallel and spaced apart. The fixing structure is arranged on the mounting plate. The guide wheels are arranged on the mounting plate and the support plate respectively. The mounting frame also includes a support member which is fixedly connected between the mounting plate and the support plate.
5. The electric spark multi-wire cutting auxiliary device according to claim 4, characterized in that: The support member is a support rod, and at least two support rods are provided. The ends of the support rods are respectively provided with mounting thread sections that cooperate with the mounting plate and supporting thread sections that cooperate with the support plate. Mounting nuts are respectively provided on the mounting thread sections and on both sides of the mounting plate, and support nuts are respectively provided on both sides of the support thread sections and on the support plate.
6. The electric spark multi-wire cutting auxiliary device according to claim 4, characterized in that: A bearing seat for mounting the guide wheel is fixedly arranged on the mounting frame, and limiting grooves for limiting the position of the bearing seat are arranged on the mounting plate and the supporting plate.
7. The electric spark multi-wire cutting auxiliary device according to any one of claims 1 to 3, characterized in that: The guide wheel is an insulating guide wheel, which constitutes the insulating member. An insulating seat is also provided on the mounting frame, and a conductive member for contacting multiple electrode wires in the guide groove of the guide wheel to electrically connect the multiple electrode wires arranged at intervals is provided on the insulating seat.
8. The electric spark multi-wire cutting auxiliary device according to claim 7, characterized in that: The conductive member is a conductive rod, and a pressing and tensioning portion for pressing and tensioning the electrode wire is formed on the outer circumferential surface of the conductive rod.
9. The electric spark multi-wire cutting auxiliary device according to claim 3, characterized in that: The mounting frame includes a mounting plate and a supporting plate arranged in parallel and at intervals. The mounting plate is provided with the connecting rod through-holes. At least one side of the mounting plate is also provided with an avoidance groove for avoiding the clamping plate so that the clamping plate is close to the wire rack or the column.
10. The electric spark multi-wire cutting auxiliary device according to any one of claims 1 to 3, characterized in that: The EDM multi-wire cutting auxiliary device also includes a liquid spray base fixedly arranged on a wire rack or a column, a universal liquid spray pipe is arranged on the liquid spray base, and a working liquid interface for connecting to a working liquid pipe on a machine tool is arranged on the universal liquid spray pipe.