CN113333883B - Cutting device and cutting method - Google Patents
Cutting device and cutting method Download PDFInfo
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- CN113333883B CN113333883B CN202110717737.5A CN202110717737A CN113333883B CN 113333883 B CN113333883 B CN 113333883B CN 202110717737 A CN202110717737 A CN 202110717737A CN 113333883 B CN113333883 B CN 113333883B
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- 238000010892 electric spark Methods 0.000 claims description 15
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- 238000009760 electrical discharge machining Methods 0.000 claims 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/02—Electrical discharge machining combined with electrochemical machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/14—Supply or regeneration of working media
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
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Abstract
The invention discloses a cutting device and a cutting method, which relate to the technical field of special machining and comprise a cutting machine tool, a wire cut electric discharge machining module, an electrolytic wire cutting module and a machining groove, wherein the wire cut electric discharge machining module, the electrolytic wire cutting module and a workpiece to be machined are all arranged on the cutting machine tool, the machining groove is arranged in a region to be machined of the workpiece to be machined, and the wire cut electric discharge machining module and the electrolytic wire cutting module can both extend into the machining groove and cut the region to be machined of the workpiece to be machined. The wire-cut electric discharge machining module is used for machining structural characteristic shapes, and the electrolytic wire-cut module is used for removing a defect layer generated by machining the wire-cut electric discharge machining module to achieve required surface quality and accuracy. Most of machining allowance is removed efficiently by the wire cut electric discharge machining module, and when machining defects of the wire cut electric discharge machining module are removed by the wire cut electric discharge machining module, machining efficiency of the wire cut electric discharge machining module is greatly improved.
Description
Technical Field
The invention relates to the technical field of special machining, in particular to a cutting device and a cutting method.
Background
The wire cut electrical discharge machining usually uses a molybdenum/tungsten wire with a small diameter as a wire electrode tool, a workpiece to be machined is connected with a positive electrode of a pulse power supply, the wire electrode is connected with a negative electrode of the pulse power supply, working fluid is sprayed in a gap between the wire electrode and the workpiece, pulse voltage is applied to puncture the working fluid in the gap, and spark discharge erosion materials are generated to realize the effect of cutting the workpiece. The wire cut electrical discharge machining is suitable for machining various high-hardness and high-strength conductive materials such as quenched steel, hard alloy and the like. The processing speed of the current reciprocating wire-moving electrospark wire-electrode cutting technology can reach 200mm2Min, the maximum processing speed can reach 300mm after adjusting and optimizing parameters such as a pulse power supply, working liquid, a processing gap and the like2And/min. However, wire electric discharge machining has the following problems due to the machining principle: 1. the loss of the wire electrode influences the processing precision; 2. the workpiece generates thermal stress, so that the structure is deformed, and the cutting precision is reduced; 3. the generation of pits, microcracks and recasting layers on the surface of the workpiece affects the fatigue life and cannot be applied to the occasions with severe integrity of the processed surface. The aerospace field generally adopts ultra-high hardness alloy materials, and the extreme severe conditions of high temperature and high stress bearing such as turbine blades, tenon mortises and combustion chambers of aero-enginesThe component, which is critical to the component surface, does not allow the presence of recast layers. Research attempts are made to thin the recast layer through multiple times of wire cut electrical discharge machining, but the potential safety hazard exists all the time without practical application verification.
The working principle of the electrolytic wire cutting is that a wire electrode or a metal bar is used as a tool electrode, a workpiece to be processed is connected with a positive electrode of a pulse power supply, the tool electrode is connected with a negative electrode of the pulse power supply, and pulse voltage is applied to carry out electrochemical anodic dissolution and corrosion forming on the workpiece in electrolyte. The electrolytic wire cutting has the advantages of suitability for processing conductive materials which are difficult to cut, no tool loss, no processing stress on the processing surface, no recasting layer, no heat influence area, no microcrack and the like. At present, the electrolytic wire cutting is mostly used for preparing micro/submicron structures such as micro gears, micro cantilever beams, narrow slits with high depth-diameter ratio and the like in micro machining. But the processing for the macro structure with large thickness has the problems of difficult product discharge and low efficiency. In some researches, axial flushing is provided, and various methods such as a spiral electrode, a rib-shaped electrode, a chamfered edge electrode, electrode auxiliary vibration and the like are selected to improve the mass transfer of the electrolyte, but the processing efficiency has a larger difference from the application in production.
How to machine the straight grain structure of the hard-to-machine material disc-shaped part with high efficiency, high precision and low cost is still a challenging problem. For example: the broaching of the mortises of the turbine disc of the aircraft engine needs to be provided with a plurality of broaches corresponding to the shape of the mortises, the processing flexibility is poor, the loss of the knives is serious, and the cost is high. The early investment is huge when researching and developing novel tongue-and-groove, is unfavorable for the development of novel aeroengine turbine dish.
Disclosure of Invention
The invention aims to provide a cutting device and a cutting method, which are used for solving the problems in the prior art, realizing high-efficiency machining and ensuring the machining quality and precision.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a cutting device which comprises a cutting machine tool, a wire electric discharge machining module, an electrolytic wire cutting module and a machining groove, wherein the wire electric discharge machining module, the electrolytic wire cutting module and a workpiece to be machined are all arranged on the cutting machine tool, the machining groove is arranged in a region to be machined of the workpiece to be machined, and the wire electric discharge machining module and the electrolytic wire cutting module can both extend into the machining groove and cut the region to be machined of the workpiece to be machined.
Preferably, the cutting machine comprises an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism, the wire-cut electric discharge machining module and the wire-cut electrolytic machining module are both arranged on the Z-axis moving mechanism, the X-axis moving mechanism is connected with the Y-axis moving mechanism in a sliding manner, and a workpiece to be machined is connected with the X-axis moving mechanism in a sliding manner.
Preferably, the wire-cut electric discharge machining module comprises a wire storage cylinder, an electric discharge wire frame and first cutting wires, the electric discharge wire frame is connected with the Z-axis moving mechanism in a sliding mode, the wire storage cylinder can rotate, a plurality of guide wheels are arranged on the electric discharge wire frame in a rotating mode, the first cutting wires sequentially bypass the wire storage cylinder and the guide wheels, the electric discharge wire frame is provided with a first opening, and the first cutting wires at the first opening are used for cutting a workpiece to be machined.
Preferably, the electrolysis wire cutting module includes electrolysis wire frame and second cutting wire, electrolysis wire frame with Z axle moving mechanism sliding connection, the electrolysis wire frame is provided with the second opening, the second cutting wire can rotate, the second cutting wire of second opening part is used for cutting the work piece of treating processing.
Preferably, the processing tank is detachably connected with a region to be processed of the workpiece to be processed, a sealing ring is arranged between the processing tank and the region to be processed of the workpiece to be processed, and both the wire-cut electric discharge machine module and the wire-cut electric discharge machine module extend into the processing tank through an opening at the upper end of the processing tank.
Preferably, the cutting device further comprises a power supply, wherein the power supply comprises a workpiece branch, a wire-cut electric discharge machine branch and an electrolytic wire cutting branch, the workpiece branch is connected with a workpiece to be machined, the wire-cut electric discharge machine branch is connected with the wire-cut electric discharge machine module, and the electrolytic wire cutting branch is connected with the electrolytic wire cutting module.
Preferably, the electrolyte used when the electrolytic wire cutting module works is ethylene glycol-based electrolyte.
Preferably, the cutting device further comprises an electric spark working fluid feeding and discharging system and an electrolyte feeding and discharging system, the electric spark working fluid feeding and discharging system comprises a first fluid inlet pipe and a first fluid outlet pipe, the electrolyte feeding and discharging system comprises a second fluid inlet pipe and a second fluid outlet pipe, one end of the first fluid inlet pipe is communicated with a nozzle of the wire cut electric spark cutting module, one end of the first fluid outlet pipe, one end of the second fluid inlet pipe and one end of the second fluid outlet pipe are respectively communicated with the machining tank, the other end of the first fluid inlet pipe is communicated with a first fluid storage tank, the other end of the first fluid outlet pipe is communicated with a first waste fluid tank, the other end of the second fluid inlet pipe is communicated with a second fluid storage tank, the other end of the second fluid outlet pipe is communicated with a second waste fluid tank, and the first fluid storage tank is used for containing the working fluid used when the wire cut electric spark cutting module works, and the second liquid storage tank is used for containing electrolyte used when the electrolytic wire cutting module works.
The invention also provides a cutting method, which comprises the following steps:
and 10, repeating the steps 3 to 9 until the whole workpiece to be machined is machined.
The invention also provides a cutting method, which comprises the following steps:
7, repeating the steps 3 to 6 until the whole workpiece to be machined is machined by the wire cut electric discharge machining module;
and 13, repeating the steps 9 to 12 until the whole workpiece to be processed is processed by the electrolytic wire cutting module.
Compared with the prior art, the invention has the following technical effects:
the wire-cut electric discharge machining module is used for machining structural characteristic shapes, and the electrolytic wire-cut module is used for removing a defect layer generated by machining the wire-cut electric discharge machining module to achieve required surface quality and accuracy. Most machining allowance is removed efficiently by the wire cut electric discharge machining module, and when machining defects of the wire cut electric discharge machining module are removed by the wire cut electric discharge machining module, machining efficiency is greatly improved. Adopt the ethylene glycol group electrolyte when adopting the processing of electrolysis line cutting module, realize dissolving fast and wait to process the surface passive film, the effect that the passive film generated in the suppression processing clearance makes machining efficiency promote once more.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a cutting apparatus according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of a wire electric discharge machining module of the present invention;
FIG. 4 is a schematic view of an electrolytic wire cutting module of the present invention;
FIG. 5 is a schematic view of the disc-shaped part of the present invention;
FIG. 6 is a schematic diagram of the cutting method of the present invention;
wherein: 100-cutting device, 1-cutting machine tool, 2-wire cut electrical discharge machining module, 3-electrolytic wire cutting module, 4-machining tank, 5-workpiece to be machined, 6-X axis moving mechanism, 7-Y axis moving mechanism, 8-Z axis moving mechanism, 9-wire storage cylinder, 10-wire frame, 11-first cutting wire, 12-guide wheel, 13-tension wheel, 14-mounting plate, 15-nozzle, 16-first opening, 17-wire frame, 18-second cutting wire, 19-second opening, 20-rotating shaft, 21-guider, 22-workpiece branch, 23-wire cut electrical discharge machining branch, 24-electrolytic wire cut branch, 25-first liquid inlet pipe, 26-first liquid discharge pipe, 27-a second liquid inlet pipe, 28-a second liquid discharge pipe, 29-a first liquid storage tank, 30-a first waste liquid tank, 31-a second liquid storage tank, 32-a second waste liquid tank, 33-a power supply and 34-the surface of a recast layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a cutting device and a cutting method, which are used for solving the problems in the prior art, realizing high-efficiency machining and ensuring the machining quality and precision.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1-5: the embodiment provides a cutting device 100, which comprises a cutting machine tool 1, a wire-cut electric discharge machine module 2, an electrolytic wire cutting module 3 and a processing tank 4, wherein the wire-cut electric discharge machine module 2, the electrolytic wire cutting module 3 and a workpiece 5 to be processed are all arranged on the cutting machine tool 1, the processing tank 4 is arranged in a region to be processed of the workpiece 5 to be processed, and the wire-cut electric discharge machine module 2 and the electrolytic wire cutting module 3 can both extend into the processing tank 4 and cut the region to be processed of the workpiece 5 to be processed.
Specifically, the processing tank 4 is sized to contain a region to be processed of the workpiece 5 to be processed, and can isolate a non-processed region and a processed region from each other during processing of the wire electric discharge cutting module 3, thereby preventing the accuracy thereof from being damaged by stray corrosion.
The cutting machine tool 1 comprises an X-axis moving mechanism 6, a Y-axis moving mechanism 7 and a Z-axis moving mechanism 8, wherein a wire cut electric discharge machine module 2 and an electrolytic wire cutting module 3 are arranged on the Z-axis moving mechanism 8 side by side at a certain interval along the axial direction of the X-axis moving mechanism 6, so that the wire cut electric discharge machine module 2 and the electrolytic wire cutting module 3 are ensured not to interfere in machining, the X-axis moving mechanism 6 is in sliding connection with the Y-axis moving mechanism 7, a workpiece 5 to be machined is in sliding connection with the X-axis moving mechanism 6, specifically, the X-axis moving mechanism 6 is provided with a rotary table in a sliding mode, and a clamp used for fixing the workpiece 5 to be machined is arranged on the rotary table.
The wire cut electric discharge machining module 2 comprises a wire storage cylinder 9, an electric discharge wire frame 10 and a first cutting wire 11, wherein the first cutting wire 11 is a tungsten/molybdenum wire, the electric discharge wire frame 10 is connected with a Z-axis moving mechanism 8 in a sliding mode, the wire storage cylinder 9 can rotate, a plurality of guide wheels 12 and a nozzle 15 are arranged on the electric discharge wire frame 10 in a rotating mode, the first cutting wire 11 sequentially bypasses the wire storage cylinder 9 and the guide wheels 12 and penetrates through the nozzle 15, a tension wheel 13 is further arranged on the electric discharge wire frame 10 in a rotating mode and used for tensioning the first cutting wire 11, a first opening 16 is formed in the electric discharge wire frame 10, the first cutting wire 11 at the first opening 16 is used for cutting a workpiece 5 to be machined, specifically, the electric discharge wire frame 10 is connected with the Z-axis moving mechanism 8 in a sliding mode through a mounting plate 14, and the wire storage cylinder 9 is connected with the mounting plate 14 in a rotating mode.
The electrolytic wire cutting module 3 comprises an electrolytic wire frame 17 and a second cutting wire 18, the second cutting wire 18 is a stainless steel wire electrode, the electrolytic wire frame 17 is connected with the Z-axis moving mechanism 8 in a sliding mode, the electrolytic wire frame 17 is provided with a second opening 19, the second cutting wire 18 can rotate, the second cutting wire 18 at the second opening 19 is used for cutting the workpiece 5 to be processed, specifically, the electrolytic wire frame 17 is connected with the Z-axis moving mechanism 8 in a sliding mode through a mounting plate 14, one end of the second cutting wire 18 is connected with the electrolytic wire frame 17 in a rotating mode through a rotating shaft 20, the other end of the second cutting wire 18 penetrates through a guide 21 on the electrolytic wire frame 17, and the rotating shaft 20 is used for rotating the second cutting wire 18 and assisting in discharging of cutting products of the electrolytic wire cutting module 3.
The processing tank 4 is detachably connected with a to-be-processed area of the to-be-processed workpiece 5 through bolts, a sealing ring is arranged between the processing tank 4 and the to-be-processed area of the to-be-processed workpiece 5 to prevent liquid leakage, and the wire cut electric discharge machining module 2 and the wire cut electric discharge machining module 3 both extend into the processing tank 4 through an opening at the upper end of the processing tank 4.
The cutting device 100 further comprises a power supply 32, the power supply 32 is a programmable pulse power supply, the power supply 32 comprises a workpiece branch 22, a wire-cut electric discharge machining branch 23 and an electrolytic wire cutting branch 24, the workpiece branch 22 is connected with the workpiece 5 to be machined, the wire-cut electric discharge machining branch 23 is connected with the wire-cut electric discharge machining module 2, and the electrolytic wire cutting branch 24 is connected with the electrolytic wire cutting module 3. Specifically, the positive electrode of the power supply 32 is connected to the workpiece 5 to be machined through the workpiece branch 22, and the negative electrode of the power supply 32 is connected to the first cutting wire 11 through the wire electric discharge cutting branch 23 and to the second cutting wire 18 through the wire electric discharge cutting branch 24.
The cutting device 100 further comprises an electric spark working fluid feeding and discharging system and an electrolyte feeding and discharging system, the electric spark working fluid feeding and discharging system comprises a first liquid inlet pipe 25 and a first liquid outlet pipe 26, the electrolyte feeding and discharging system comprises a second liquid inlet pipe 27 and a second liquid outlet pipe 28, one end of the first liquid inlet pipe 25 is communicated with the nozzle 15 of the electric spark wire cutting module 2, one end of the first liquid outlet pipe 26, one end of the second liquid inlet pipe 27 and one end of the second liquid discharge pipe 28 are respectively communicated with the machining tank 4, the other end of the first liquid inlet pipe 25 is communicated with the first liquid storage tank 29, the other end of the first liquid discharge pipe 26 is communicated with the first waste liquid tank 30, the other end of the second liquid inlet pipe 27 is communicated with the second liquid storage tank 31, the other end of the second liquid discharge pipe 28 is communicated with the second waste liquid tank 32, the first liquid storage tank 29 is used for containing working liquid used when the wire cut electric discharge machining module 2 works, and the second liquid storage tank 31 is used for containing electrolyte used when the wire cut electric discharge machining module 3 works. The first reservoir 29, the second reservoir 31, the first waste liquid tank 30, and the second waste liquid tank 32 are integrated together.
The electrolyte used by the electrolytic wire cutting module 3 during operation is a glycol-based electrolyte, specifically, the electrolyte using glycol as a solvent, 1mol/L sodium chloride or sodium nitrate as a solute, or a mixture of sodium chloride or sodium nitrate as a solute. The ethylene glycol-based electrolyte has the characteristics of good processing localization and difficult generation of a passive film on the surface of processed metal due to the characteristics of low conductivity, difficult generation of a passive film on a workpiece and no generation of insoluble electrolytic products, and is particularly suitable for high-precision and high-efficiency electrolytic processing. Because the electrolytic wire cutting module 3 has small corrosion removal amount when removing the defects of the wire cut electrical discharge machining, the second cutting wire 18 is always in the state of removing the passive film on the surface of the workpiece in the feeding direction, when a water-based solution is used, the passive film on the surface to be machined is difficult to break, and the process of 'growth-fracture-growth' of the passive film is easy to repeatedly appear in a machining gap, thereby seriously reducing the machining efficiency; when the ethylene glycol-based electrolyte is used, the passive film on the surface to be processed is easy to break, and the passive film cannot be generated in the processing gap, so that the processing efficiency is greatly improved.
The embodiment also comprises a machine tool numerical control system for controlling the working state of each structure, and aims at the improvement of the structure, and the control process is the prior art.
As shown in fig. 6, the wire-cut electric discharge machine module 2 is used for machining a structural feature shape, and the wire-cut electric discharge machine module 3 is used for removing a defective layer, such as a recast layer surface 34, generated by machining the wire-cut electric discharge machine module 2 to achieve a required surface quality and accuracy.
The embodiment can conveniently and quickly cut structural features on the disc-shaped part, avoids clamping errors and improves the machining efficiency. The flow and sputtering of working fluid or electrolyte can be limited by using the closed processing tank 4 with a limited area, the durability of the machine tool is improved, and the stray corrosion influence of electrolytic wire cutting can be effectively inhibited by isolating a non-processing area and a processed area through the processing tank 4.
When the electrolytic wire cutting module 3 removes the machining defects of electric spark wire cutting, the second cutting wire 18 is in a half-open type single-side machining state, the problems that products in a narrow machining gap are difficult to discharge and fresh electrolyte is difficult to enter the machining gap in the conventional electrolytic wire cutting machining process are solved, the electrolyte supply can be stably and smoothly updated, the machining of large-thickness components is realized, and the machining stability, the machining consistency and the machining efficiency are greatly improved.
Example two
The embodiment provides a cutting method using the cutting device 100 of the first embodiment, which is used for machining a disc-shaped part, and each to-be-machined area of a to-be-machined workpiece 5 of the embodiment is firstly cut by using the wire-cut electrical discharge machining module 2, and then is cut by using the wire-cut electrical discharge machining module 3, and the method includes the following steps:
and 10, repeating the steps 3 to 9 until the whole workpiece 5 to be machined is machined.
The embodiment combines the advantages of low cost and high precision of wire cut electrical discharge machining and electrolytic wire cutting, and is particularly suitable for machining complex straight grain structures on disc-shaped parts made of metals difficult to machine. The wire cut electric discharge machining module 2 is combined with the wire cut electric discharge machining, most of machining allowance is efficiently removed by the wire cut electric discharge machining module 2, and when the wire cut electric discharge machining module 3 is used for removing electric discharge machining defects, the machining efficiency is greatly improved, so that the machining quality is guaranteed.
The double-station direct preparation method has the advantages of taking surface precision and surface quality of the workpiece into consideration, realizing double-station direct preparation of the workpiece on the same machine tool without replacing the machine tool and clamping for many times, shortening the process flow, remarkably reducing the manufacturing difficulty, having low cost and high yield, and being very suitable for application in actual industrial production.
EXAMPLE III
The present embodiment provides a cutting method using the cutting apparatus 100 of the first embodiment, and a disc-shaped part is processed using the present embodiment, which is different from the second embodiment in that: in this embodiment, the whole workpiece 5 to be machined is cut by the wire cut electric discharge machining module 2, and then the whole workpiece is cut by the wire cut electric discharge machining module 3, which includes the following steps:
7, repeating the steps 3 to 6 until the wire cut electric discharge machining module 2 finishes the whole machining of the workpiece 5 to be machined;
and 13, repeating the steps 9 to 12 until the whole workpiece 5 to be processed is processed by the electrolytic wire cutting module 3.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A cutting device characterized by: the cutting device comprises a cutting machine tool, a wire cut electric discharge machine module, an electrolytic wire cutting module and a processing tank, wherein the wire cut electric discharge machine module, the electrolytic wire cutting module and a workpiece to be processed are arranged on the cutting machine tool, the processing tank is arranged in a region to be processed of the workpiece to be processed, the wire cut electric discharge machine module and the electrolytic wire cutting module can extend into the processing tank and cut the region to be processed of the workpiece to be processed, a sealing ring is arranged between the processing tank and the region to be processed of the workpiece to be processed, the cutting device comprises an electrolyte liquid inlet and outlet system, the electrolyte liquid inlet and outlet system comprises a second liquid inlet pipe and a second liquid outlet pipe, one end of the second liquid inlet pipe and one end of the second liquid outlet pipe are respectively communicated with the processing tank, the other end of the second liquid inlet pipe is communicated with a second liquid storage tank, and the other end of the second liquid outlet pipe is communicated with a second waste liquid tank, and the second liquid storage tank is used for containing electrolyte used when the electrolytic wire cutting module works.
2. The cutting device of claim 1, wherein: the cutting machine comprises an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism, wherein the electrospark wire-electrode cutting module and the electrolysis wire-electrode cutting module are arranged on the Z-axis moving mechanism, the X-axis moving mechanism is connected with the Y-axis moving mechanism in a sliding mode, and a workpiece to be machined is connected with the X-axis moving mechanism in a sliding mode.
3. The cutting device of claim 2, wherein: the electric spark wire cutting module comprises a wire storage cylinder, an electric spark wire frame and first cutting wires, the electric spark wire frame is in sliding connection with the Z-axis moving mechanism, the wire storage cylinder can rotate, a plurality of guide wheels are arranged on the electric spark wire frame in a rotating mode, the first cutting wires sequentially bypass the wire storage cylinder and the guide wheels, a first opening is formed in the electric spark wire frame, and the first cutting wires at the first opening are used for cutting a workpiece to be machined.
4. The cutting device of claim 2, wherein: the electrolytic wire cutting module comprises an electrolytic wire frame and a second cutting wire, the electrolytic wire frame is connected with the Z-axis moving mechanism in a sliding mode, the electrolytic wire frame is provided with a second opening, the second cutting wire can rotate, and the second cutting wire at the second opening is used for cutting a workpiece to be machined.
5. The cutting device of claim 1, wherein: the processing tank is detachably connected with a to-be-processed area of a to-be-processed workpiece, and the wire cut electric discharge machine module extend into the processing tank through an opening at the upper end of the processing tank.
6. The cutting device of claim 1, wherein: the cutting device further comprises a power supply, wherein the power supply comprises a workpiece branch, a wire-cut electric discharge machining branch and an electrolytic wire cutting branch, the workpiece branch is connected with a workpiece to be machined, the wire-cut electric discharge machining branch is connected with the wire-cut electric discharge machining module, and the electrolytic wire cutting branch is connected with the electrolytic wire cutting module.
7. The cutting device of claim 1, wherein: the electrolyte used by the electrolytic wire cutting module during working is ethylene glycol-based electrolyte.
8. The cutting device of claim 7, wherein: the cutting device still includes that electric spark working solution advances drainage system, electric spark working solution advances drainage system includes first feed liquor pipe and first drain pipe, the one end of first feed liquor pipe with the nozzle intercommunication of spark-erosion wire cutting module, the one end of first drain pipe the other end and the first reservoir intercommunication of first feed liquor pipe, the other end and the first waste liquid groove intercommunication of first drain pipe, first reservoir is used for holding the working solution that spark-erosion wire cutting module during operation used.
9. A cutting method using the cutting apparatus according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
step 1, distributing machining allowances of a wire cut electric discharge machining module and an electrolytic wire cutting module, selecting electric parameters and feeding speeds of the wire cut electric discharge machining module and the electrolytic wire cutting module, and respectively importing machining track codes of the wire cut electric discharge machining module and the electrolytic wire cutting module;
step 2, clamping a workpiece to be processed on a cutting machine;
step 3, the wire cut electric discharge machining module carries out cutting tool setting, a machining groove is arranged in an initial to-be-machined area of a to-be-machined workpiece, and the wire cut electric discharge machining module is moved into the machining groove;
step 4, starting a program to start the cutting and machining of the wire cut electric discharge machining module;
step 5, after the wire cutting machining of the wire cut electric discharge machining module is finished, moving the wire cut electric discharge machining module out of the machining groove;
step 6, moving the electrolytic wire cutting module into the processing tank;
step 7, starting a program to start the cutting processing of the electrolytic wire cutting module;
step 8, after the wire cutting processing of the electrolytic wire cutting module is finished, moving the electrolytic wire cutting module out of the processing tank;
step 9, disassembling the processing tank and installing the processing tank in the next area to be processed of the workpiece to be processed;
and 10, repeating the steps 3 to 9 until the whole workpiece to be machined is machined.
10. A cutting method using the cutting apparatus according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
step 1, distributing machining allowances of a wire cut electric discharge machining module and an electrolytic wire cutting module, selecting electric parameters and feeding speeds of the wire cut electric discharge machining module and the electrolytic wire cutting module, and respectively importing machining track codes of the wire cut electric discharge machining module and the electrolytic wire cutting module;
step 2, clamping a workpiece to be processed on a cutting machine;
step 3, the wire cut electric discharge machining module carries out cutting tool setting, a machining groove is arranged in an initial to-be-machined area of a to-be-machined workpiece, and the wire cut electric discharge machining module is moved into the machining groove;
step 4, starting a program to start the cutting and machining of the wire cut electric discharge machining module;
step 5, after the cutting and machining of the wire cut electric discharge machining module are finished, moving the wire cut electric discharge machining module out of the machining groove;
step 6, disassembling the processing tank and installing the processing tank in the next area to be processed of the workpiece to be processed;
7, repeating the steps 3 to 6 until the whole workpiece to be machined is machined by the wire cut electric discharge machining module;
step 8, mounting the processing tank in an initial to-be-processed area of a to-be-processed workpiece;
step 9, moving the electrolytic wire cutting module into the processing tank;
step 10, starting a program to start the cutting processing of the electrolytic wire cutting module;
step 11, after the wire cutting processing of the electrolytic wire cutting module is finished, moving the electrolytic wire cutting module out of the processing tank;
step 12, disassembling the processing tank and installing the processing tank in a next to-be-processed area of the workpiece to be processed;
and 13, repeating the steps 9 to 12 until the whole workpiece to be processed is processed by the electrolytic wire cutting module.
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| CN113977020A (en) * | 2021-11-22 | 2022-01-28 | 中国航发贵州黎阳航空动力有限公司 | Turbine disc mortise machining method |
| CN114799378B (en) * | 2022-05-20 | 2024-05-07 | 天津理工大学中环信息学院 | Wire-electrode cutting multiple cutting process method for micro-gear male die |
| CN117001090A (en) * | 2023-09-28 | 2023-11-07 | 泰州市江南机械制造有限公司 | Workpiece surface quick cleaning mechanism for wire cutting |
| CN117245157B (en) * | 2023-11-16 | 2024-01-30 | 江苏华腾工业技术有限公司 | Cutting platform for cutting room |
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