CN107598311B - Rotary laminated electrode electric discharge machining device and method - Google Patents
Rotary laminated electrode electric discharge machining device and method Download PDFInfo
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- CN107598311B CN107598311B CN201710861572.2A CN201710861572A CN107598311B CN 107598311 B CN107598311 B CN 107598311B CN 201710861572 A CN201710861572 A CN 201710861572A CN 107598311 B CN107598311 B CN 107598311B
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- 238000003754 machining Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010892 electric spark Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 4
- 239000010439 graphite Substances 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 10
- 238000002493 microarray Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Abstract
The invention discloses a rotary laminated electrode electric discharge machining device and a machining method using the same. The rotary thin-sheet electrode plate is mounted on a rotary shaft of a numerically controlled grinder together with a grinding wheel clamp and a flange clamp (the diameter of the electrode plate is 0.5-5 mm larger than the diameter of the grinding wheel clamp), and rotates along with the grinding wheel clamp. The two ends of the grinding wheel clamp and the conductive workpiece are connected with a pulse power supply through graphite brushes, the conductive workpiece is placed on a horizontal workbench, pulse electric spark discharge is generated between a rotating electrode plate and the workpiece, and the electrode plate reciprocates on the surface of the workpiece along a set numerical control track, so that a plurality of smooth micro-groove array structures can be machined on the surface of the workpiece in a high-precision and one-time side-by-side mode.
Description
Technical Field
The invention belongs to the technical field of micro-discharge machining equipment, and particularly relates to a rotary laminated electrode discharge machining device and method.
Background
The specific micro-nano structure is processed on the surface of the part, so that new engineering application value can be generated, but the micro-nano structure is difficult to process, especially in the aspect of micrometer-scale structure, and no efficient and high-precision forming processing method and device exist yet.
At present, the traditional micro-discharge machining method can machine a micro-array structure on the surface of a workpiece, but the traditional micro-discharge machining method cannot guarantee the machining precision of a micro-groove structure. Although the conventional grinding wheel grinding and spark discharge machining methods can be used for machining the microarray structure with high precision, the machining efficiency is quite low, and the microarray structure cannot be widely applied and developed in the production and manufacturing process. Moreover, during grinding of the grinding wheel, the grinding wheel needs to be frequently dressed and is not easy to control.
Disclosure of Invention
The invention aims to provide a rotary laminated electrode electric discharge machining device, which aims to solve the problem that a plurality of microarray structures cannot be efficiently machined on the surface of a workpiece to be machined at one time in the prior art and ensure the machining precision of the machined microarray structures.
The invention is realized in that a rotary laminated electrode electric discharge machining device is used for machining a workpiece, the rotary laminated electrode electric discharge machining device comprises a tool electrode, a pulse power supply, a rotary driver and a moving driver, wherein the pulse power supply is used for providing pulse electricity and is electrically connected with the workpiece and the tool electrode, the rotary driver is used for driving the tool electrode to rotate, the moving driver is used for driving the rotary driver to move in a space, the tool electrode comprises a plurality of electrode slices used for generating electric sparks to machine the workpiece and a clamping assembly used for clamping the electrode slices and connected with the rotary driver, the clamping assembly is electrically connected with the pulse power supply, and the rotary driver drives the electrode slices to rotate through the clamping assembly.
Further, the electrode plate is annular, and the annular electrode plate comprises an inner annular part which is arranged from inside to outside and used for being clamped by the clamping assembly, and an outer annular part which is connected to the inner annular part and generates electric spark with the workpiece.
Further, the tool electrode further comprises a gasket made of a conductive material and arranged between the adjacent electrode plates, the gasket is circular and is positioned between the inner ring parts of the two adjacent electrode plates and is electrically communicated with the two adjacent electrode plates, and the diameter of the gasket is smaller than that of the electrode plates.
Further, the number of the electrode plates is three, and the inner ring parts of the three electrode plates and gaskets arranged between the adjacent inner ring parts jointly form a plate conductive part; the outer ring portions of the three electrode sheets together form a sheet discharge portion.
Further, the clamping assembly comprises a grinding wheel clamp electrically clamped at two sides of the pole piece conductive part and flange clamps clamped at two sides of the grinding wheel clamp.
Further, the grinding wheel clamp comprises a first grinding wheel which is electrically clamped at the inner ring part at one side of the pole piece conductive part and a second grinding wheel which is arranged opposite to the first grinding wheel and is electrically clamped at the inner ring part at the other side of the pole piece conductive part.
Further, the flange clamp comprises a fastening flange clamped on one side of the first grinding wheel and a positioning flange which is arranged opposite to the fastening flange and clamped on one side of the second grinding wheel.
Further, the positioning flange is rotatably connected to the rotary driver; the fastening flange, the first grinding wheel, the pole piece conducting part, the second grinding wheel and the positioning flange are sequentially arranged in parallel.
Further, the rotary laminated electrode electric discharge machining device further comprises an electric brush, one end of the electric brush is electrically connected with the pulse power supply, and the other end of the electric brush is in sliding contact and is electrically connected to the surface, facing the fastening flange, of the first grinding wheel.
Further, a rotary laminated electrode electric discharge machining method for machining a workpiece includes the following machining steps:
the preparation steps are as follows: preparing the rotary laminated electrode electric discharge machining device;
workpiece presetting: placing the workpiece in a position to mate with the rotary laminated electrode discharge machining apparatus;
the processing steps are as follows: the rotary driver drives the tool electrode to rotate at a high speed, the moving driver drives the rotary driver to move in space, a discharge loop is formed among the workpiece, the tool electrode and the pulse power supply, and micro electric spark discharge is generated between the electrode sheet and the workpiece to erode the workpiece.
Compared with the prior art, the invention has the technical effects that: the invention provides a rotary laminated electrode electric discharge machining device, which uses a plurality of thin sheet electrode plates rotating at high speed to generate micro electric sparks between the thin sheet electrode plates and a workpiece by utilizing a high-efficiency micro electric spark electric discharge machining method, so as to perform electric discharge machining on the workpiece. The electrode plate of the tool electrode is driven by the moving driver and the rotating driver to remove the material of the workpiece by micro electric spark discharge machining in the depth feeding direction of the workpiece. Thus, a plurality of microarray structures can be efficiently and precisely processed on the surface of the workpiece.
Drawings
Fig. 1 is a schematic structural diagram of a rotary stacked electrode electric discharge machining apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a tool electrode of the rotary laminated electrode electric discharge machining apparatus of fig. 1.
Fig. 3 is a partial enlarged view at a of fig. 1.
Fig. 4 is a schematic view of the structure of an electrode sheet of the rotary laminated electrode electric discharge machine of fig. 1.
Fig. 5 is a schematic view of the structure of the pole piece discharging portion and the pole piece conductive portion of the rotary laminated electrode electric discharge machining apparatus of fig. 1.
The correspondence between the reference numbers and names in the drawings is as follows:
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "thickness," "upper," "lower," "vertical," "parallel," "bottom," "angular," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be fixedly attached, detachably attached, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements.
Referring to fig. 1 to 2, a rotary laminated electrode electric discharge machining apparatus 100 according to an embodiment of the present invention is used for machining a workpiece 90, and includes: the tool electrode 20, a pulse power supply 80 for supplying pulse power and electrically connected with the workpiece 90 and electrically connected with the tool electrode 20, a rotary driver 10 for driving the tool electrode 20 to rotate, and a moving driver (not shown) for driving the rotary driver 10 to move in space. In this embodiment, the moving driver is a numerically controlled grinder (not shown) having a three-axis linkage system, the rotary driver 10 is a rotary shaft 10 with one end connected to the numerically controlled grinder, and the other end of the rotary shaft 10 is connected to the tool electrode 20. The tool electrode 20 comprises a plurality of electrode plates 21 for generating electric sparks to process the workpiece 90 and a clamping assembly 30 for clamping the electrode plates 21 and being connected with the rotating shaft 10, the clamping assembly 30 is electrically connected with the pulse power supply 80, the rotating shaft 10 drives the electrode plates 21 to rotate through the clamping assembly 30, and the electrode plates 21 are made of conductive materials and are electrically connected with the clamping assembly 30.
Specifically, the material of the workpiece 90 may be a conductive material (e.g., steel, cemented carbide, etc.), or a nonconductive material (e.g., glass, sapphire, etc.), and when the workpiece 90 is a nonconductive material, the workpiece 90 needs to be subjected to an induced discharge. Preferably, the material of the workpiece 90 in this embodiment is a conductive material. The pulse voltage range of the pulse power supply 80 is 20-150V, the pulse frequency range is 100-5000 Hz, and the pulse width range is 0.2-100 mu s. Preferably, the pulse voltage of the pulse power supply 80 in this embodiment is 50V, the pulse frequency is 2000Hz, and the pulse width is 50 μs.
According to the rotary laminated electrode electric discharge machining apparatus 100, an embodiment of the present invention further provides an electric discharge machining method for machining a workpiece 90, including the following machining steps:
the preparation steps are as follows: preparing the rotary laminated electrode electric discharge machine 100;
workpiece presetting: placing the workpiece 90 in a position to fit the rotary laminated electrode electric discharge machining apparatus 100 for electric discharge machining;
the processing steps are as follows: the rotating shaft 10 drives the tool electrode 20 to rotate at a high speed, the moving driver drives the rotating shaft 10 to move in space, a discharge circuit is formed among the workpiece 90, the tool electrode 20 and the pulse power supply 80, and a micro spark discharge is generated between the electrode slice 21 and the workpiece 90 to erode the workpiece 90. The electrode plate 21 erodes the workpiece 90 along the depth feeding direction a by micro electric spark discharge machining, so that a plurality of smooth micro groove array structures can be efficiently machined on the surface of the workpiece 90 at one time, electric spark discharge machining of conductive hard and brittle materials is realized, and the electric discharge machining efficiency and the electric discharge machining quality can be greatly improved.
In the rotary laminated electrode electric discharge machine 100 according to the embodiment of the present invention, the rotary shaft 10 is mounted on a numerically controlled grinder, and the plurality of sheet electrode pieces 21 are rotated at a high speed by using a high-efficiency micro electric discharge machining method, preferably, the rotary shaft 10 has a rotation speed N of 1000 to 5000 rpm. A fine electric spark is generated between the circumferential side surface of the plurality of sheet electrode pieces 21 facing the workpiece 90 and the workpiece 90, thereby performing electric discharge machining on the workpiece 90. Driven by a three-axis linkage system of the numerically controlled grinder, the electrode plate 21 can remove the material of the workpiece 90 by micro electric spark discharge machining in the depth feeding direction a of the workpiece 90, wherein the feeding speed is 10-200 mm/min, and the feeding depth is 10-100 mu m. Preferably, the rotation speed N of the electrode sheet 21 in this embodiment is 1000 revolutions per minute, the feed depth is 50 μm, and the feed speed a is 20mm/min.
Thus, a plurality of microarray structures (not shown) can be efficiently and precisely machined on the surface of the workpiece 90 by electric discharge machining. The micro-array structure may be a micro-groove array structure 91, the cross section of the groove of the micro-groove array structure 91 may be rectangular, trapezoid or V-shaped, wherein the width of the groove ranges from 10 μm to 800 μm, the interval between adjacent grooves ranges from 20 μm to 500 μm, the depth of the groove ranges from 10 μm to 100 μm, and the surface roughness R of the processed micro-groove array structure 91 a The range of (2) is 0.01 to 0.5. Mu.m. Preferably, the micro groove array structure 91 processed in this embodiment is a trapezoid groove, the width of the trapezoid groove is 535 μm, the interval between adjacent trapezoid grooves is 125 μm, and the depth of the trapezoid groove is 45 μm.
Further, the electrode plate 21 is annular, and the electrode plate 21 includes an inner ring portion 211 provided from inside to outside for clamping by the clamping assembly 30, and an outer ring portion 212 connected to the inner ring portion 211 and generating an electric spark with the workpiece 90. The inner ring 211 is sleeved on the rotating shaft 10 and rotates at a high speed along with the rotating shaft 10. The electrode sheet 21 in this embodiment is a common thin sheet made of copper foil, and has a thickness in the range of 5 to 800 μm.
Referring to fig. 3 to 4, further, the tool electrode 20 further includes a spacer 22 made of a conductive material and disposed between the adjacent electrode pads 21. The spacer 22 is annular and is located between the inner ring portions 211 of two adjacent electrode plates 21. The diameter of the spacer 22 is smaller than the diameter of the electrode sheet 21. Specifically, the spacer 22 is sleeved on the rotating shaft 10 and is electrically connected with the adjacent electrode plates 21, and the thickness of the spacer 22 ranges from 20 μm to 500 μm. The diameter of the electrode sheet 21 is 0.5 to 5mm larger than the diameter of the spacer 22. Preferably, the diameter of the electrode sheet 21 in this embodiment is 1mm larger than the diameter of the spacer 22.
Referring to fig. 5, further, the number of electrode pads 21 is three, and in other embodiments, the number of electrode pads 21 may be set according to actual needs. The thickness of each of the three pole piece bodies 211 in this embodiment is preferably 500 μm. The inner ring portions 211 of the three electrode sheets 21 and the gaskets 22 disposed between the adjacent inner ring portions 211 together form a sheet conductive portion 70; the outer ring portions 212 of the three electrode sheets 21 collectively form a sheet discharge portion 60. By electrically connecting the pole piece conductive parts 70, an electric spark can be generated between the pole piece discharge part 60 and the workpiece 90, and three micro-groove array structures 91 can be processed in parallel at a time, so that the processing efficiency is greatly improved.
Further, the electrode plates 21 that are arbitrarily adjacent and the spacers 22 that are located between the electrode plates 21 that are adjacent are surrounded together to form an annular grinding groove 50, and the groove width of the grinding groove 50 is equal to the thickness of the spacers 22. The groove width of the grinding groove 50 in this embodiment is in the range of 20 to 500 μm, and the number is two. The chips of the tool electrode 20 during the electric discharge machining can be discharged through the two grinding grooves 50.
Further, the clamping assembly 30 includes a grinding wheel clamp 32 electrically clamped on both sides of the pole piece conductive portion 70, and a flange clamp 31 clamped on both sides of the grinding wheel clamp 32. The grinding wheel clamp 32 clamps the plurality of electrode pads 21 and the gaskets 22 from two sides of the electrode pad conductive part 70 to the middle thereof, so that good electrical connection between the gaskets 22 and the electrode pads 21 is maintained.
Further, the grinding wheel holder 32 includes a first grinding wheel 321 electrically clamped to the inner ring portion 211 on one side of the pole piece conductive portion 70, and a second grinding wheel 322 disposed opposite to the first grinding wheel 321 and electrically clamped to the inner ring portion 211 on the other side of the pole piece conductive portion 70. The first grinding wheel 321 and the second grinding wheel 322 have good electrical conductivity, and can be well electrically connected with the pole piece conductive part 70. The first grinding wheel 321 and the second grinding wheel 322 are respectively sleeved on the rotating shaft 10 and press the pole piece conductive parts 70 oppositely, so that the pole piece conductive parts 70 are fixed on the rotating shaft 10.
Further, the diameter of the first grinding wheel 321 is smaller than the diameter of the electrode sheet 21, and the diameter of the second grinding wheel 322 is smaller than the diameter of the electrode sheet 21, so that the tool electrode 20 can process the workpiece 90 from both sides of the sheet discharging portion 60. The diameter of the electrode sheet 21 is 0.5-5 mm larger than the diameters of the first grinding wheel 321 and the second grinding wheel 322. In this embodiment, the diameters of the first grinding wheel 321, the second grinding wheel 322, and the pad 22 are equal. The diameter of the electrode sheet 21 is 1mm larger than that of the first grinding wheel 321, and similarly, the diameter of the electrode sheet 21 is 1mm larger than that of the second grinding wheel 322.
The flange clamp 31 includes a fastening flange 311 clamped to one side of the first grinding wheel 321, and a positioning flange 312 disposed opposite to the fastening flange 311 and clamped to one side of the second grinding wheel 322. The fastening flange 311 and the positioning flange 312 clamp the first grinding wheel 321 and the second grinding wheel 322 in opposite directions, respectively.
Further, the fastening flange 311 and the positioning flange 312 are both sleeved and fixed on the rotating shaft 10. The fastening flange 311, the first grinding wheel 321, the pole piece conductive part 70, the second grinding wheel 322, and the positioning flange 312 are sequentially arranged in parallel and are driven by the rotating shaft 10 to rotate around the central axis of the rotating shaft 10.
Further, the rotary laminated electrode electric discharge machining apparatus 100 further includes a brush 40. The brush 40 in this embodiment is a graphite brush. One end of the brush 40 is electrically connected to the pulse power source 80, and the other end of the brush 40 is in sliding contact with and is electrically connected to the surface of the first grinding wheel 321 facing the fastening flange 311. When the first grinding wheel 321 rotates around the central axis of the rotating shaft 10, the electric brush 40 slides on the surface of the first grinding wheel 321 and is electrically connected with the first grinding wheel 321, so that the pole piece discharging part 60 can continuously generate electric spark with the workpiece 90.
Further, the workpiece 90, the pulse power source 80, the graphite brush 40 and the tool electrode 20 are electrically connected in sequence, and the workpiece 90 and the tool electrode 20 are disposed at a proper distance so that the generated electric spark satisfies the machining requirement of the workpiece 90.
The following describes the operation of the rotary laminated electrode electric discharge machine according to the embodiment of the present invention with reference to the specific structure and drawings of the present embodiment:
the fastening flange 321 is disposed opposite to the positioning flange 312 and sleeved and fixed at one end of the rotating shaft 10, the other end of the rotating shaft 10 is connected to the numerically controlled grinder, and the numerically controlled grinder has a three-axis linkage system to enable the rotating shaft 10 to run along a predetermined track in space while rotating.
Three sheet electrode plates 21 are mounted between a first grinding wheel 321 and a second grinding wheel 322 of the grinding wheel fixture 32, the three electrode plates 21 are arranged at intervals, and a gasket 22 is arranged between adjacent electrode plates 21. The grinding wheel holder 32 is then fitted over one end of the rotary shaft 10 together with the electrode plate 21 and the spacer 22 and is fixed between the fastening flange 321 and the positioning flange 312.
The fastening flange 321 axially presses the first grinding wheel 321 and the second grinding wheel 322 toward the positioning flange 322, thereby achieving the purpose of fixing the three electrode plates 21.
One end of the graphite brush 40 is electrically connected to one pole of the pulse power source 80, the other end is slid and electrically connected to the first grinding wheel 321, and the conductive workpiece 90 is electrically connected to the other pole of the pulse power source 80.
While the three electrode plates 21 rotate along with the rotating shaft 10 at a high speed, the three electrode plates 21 move along a set numerical control machining walking track under the drive of a three-axis numerical control linkage system of a numerical control grinder, micro electric spark discharge is generated between the electrode plates 21 rotating at a high speed and the workpiece 90, and the surface material of the workpiece 90 is removed through the instantaneous high temperature of the micro electric spark along the depth feeding direction a, so that a plurality of smooth micro groove array structures 91 are formed on the surface of the workpiece 90 at one time and are processed side by side at high efficiency.
The rotary laminated electrode electric discharge machining device 100 provided by the embodiment of the invention has wider adaptability, and can machine various three-dimensional microarray structures 91 on the surface of any workpiece 90. The electrode plate 21 has less loss, the electrode plate 21 does not need to be replaced frequently, the electrode plate 21 rotating at high speed can repair the shape and roundness of the electrode plate 21, the machining efficiency and the machining precision are high, the micro-groove array structure 91 can be formed at one time and machined side by side, the machining efficiency is greatly improved, and the machining precision is very high.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. A rotary laminated electrode electric discharge machining device for machining a workpiece, the rotary laminated electrode electric discharge machining device comprising a tool electrode, a pulse power supply for supplying pulse power to the workpiece and electrically connected with the tool electrode, a rotary driver for driving the tool electrode to rotate, and a moving driver for driving the rotary driver to move in space, wherein the tool electrode comprises a plurality of electrode slices for generating electric sparks to machine the workpiece and a clamping assembly for clamping the plurality of electrode slices and being connected with the rotary driver, the clamping assembly is electrically connected with the pulse power supply, and the rotary driver drives the electrode slices to rotate through the clamping assembly;
the electrode plate is annular and comprises an inner ring part which is arranged from inside to outside and used for being clamped by the clamping assembly and an outer ring part which is connected to the inner ring part and generates electric spark with the workpiece;
the tool electrode further comprises a gasket which is made of conductive materials and is arranged between the adjacent electrode plates, the gasket is round and is positioned between the inner ring parts of the two adjacent electrode plates and is electrically communicated with the adjacent electrode plates, and the diameter of the gasket is smaller than that of the electrode plates;
the thickness range of the electrode plate is 5-800 mu m, the pulse voltage range of the pulse power supply is 20-150V, the pulse frequency range of the pulse power supply is 100-5000 Hz, and the pulse width range of the pulse power supply is 0.2-100 mu s; the number of the electrode plates is three, and the inner ring parts of the three electrode plates and gaskets arranged between the adjacent inner ring parts jointly form a plate conductive part; the outer ring parts of the three electrode plates jointly form a plate discharge part;
the clamping assembly comprises a grinding wheel clamp which is electrically clamped at two sides of the pole piece conductive part, and a flange clamp which is clamped at two sides of the grinding wheel clamp;
the grinding wheel clamp comprises a first grinding wheel and a second grinding wheel, wherein the first grinding wheel is electrically clamped at the inner ring part on one side of the pole piece conductive part, and the second grinding wheel is arranged opposite to the first grinding wheel and is electrically clamped at the inner ring part on the other side of the pole piece conductive part;
the flange clamp comprises a fastening flange clamped at one side of the first grinding wheel and a positioning flange which is arranged opposite to the fastening flange and clamped at one side of the second grinding wheel;
the positioning flange is rotationally connected with the rotary driver; the fastening flange, the first grinding wheel, the pole piece conducting part, the second grinding wheel and the positioning flange are sequentially arranged in parallel.
2. The rotary laminated electrode electric discharge machining apparatus according to claim 1, wherein: the rotary laminated electrode electric discharge machining device further comprises an electric brush, one end of the electric brush is electrically connected with the pulse power supply, and the other end of the electric brush is in sliding contact and is electrically connected to the surface, facing the fastening flange, of the first grinding wheel.
3. A rotary laminated electrode electric discharge machining method for machining a workpiece, comprising the steps of:
the preparation steps are as follows: preparing the rotary laminated electrode electric discharge machining apparatus according to any one of claims 1 to 2;
workpiece presetting: placing the workpiece in a predetermined position to fit the rotary laminated electrode electric discharge machining apparatus;
the processing steps are as follows: the rotary driver drives the tool electrode to rotate at a high speed, the moving driver drives the rotary driver to move in space, a discharge loop is formed among the workpiece, the tool electrode and the pulse power supply, and micro electric spark discharge is generated between the electrode sheet and the workpiece to erode the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861572.2A CN107598311B (en) | 2017-09-21 | 2017-09-21 | Rotary laminated electrode electric discharge machining device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710861572.2A CN107598311B (en) | 2017-09-21 | 2017-09-21 | Rotary laminated electrode electric discharge machining device and method |
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| CN107598311A CN107598311A (en) | 2018-01-19 |
| CN107598311B true CN107598311B (en) | 2023-11-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111136354B (en) * | 2019-12-31 | 2020-12-25 | 安徽工业大学 | Electrolytic machining method for tool cathode for electrolytically machining variable cross-section micro groove |
| CN114406811A (en) * | 2021-12-31 | 2022-04-29 | 深圳大学 | Tool grinding machine and tool grinding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210566A (en) * | 1993-01-19 | 1994-08-02 | Fuji Xerox Co Ltd | Grinding device |
| CN1565786A (en) * | 2003-07-07 | 2005-01-19 | 涂肇嘉 | Combined material electrode for electrodischarge machining and is manufacturing method |
| CN101491882A (en) * | 2008-01-23 | 2009-07-29 | 富士胶片株式会社 | Grinding method, grinding device and electrode therefor |
| CN105108248A (en) * | 2015-09-02 | 2015-12-02 | 北京市电加工研究所 | Stacking-type combined electrode for electrosparking of micro inner grooves of slow wave structure and manufacturing method of stacking-type combined electrode |
| CN207508463U (en) * | 2017-09-21 | 2018-06-19 | 深圳大学 | A kind of rotary laminate electrode electric discharge device |
-
2017
- 2017-09-21 CN CN201710861572.2A patent/CN107598311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06210566A (en) * | 1993-01-19 | 1994-08-02 | Fuji Xerox Co Ltd | Grinding device |
| CN1565786A (en) * | 2003-07-07 | 2005-01-19 | 涂肇嘉 | Combined material electrode for electrodischarge machining and is manufacturing method |
| CN101491882A (en) * | 2008-01-23 | 2009-07-29 | 富士胶片株式会社 | Grinding method, grinding device and electrode therefor |
| CN105108248A (en) * | 2015-09-02 | 2015-12-02 | 北京市电加工研究所 | Stacking-type combined electrode for electrosparking of micro inner grooves of slow wave structure and manufacturing method of stacking-type combined electrode |
| CN207508463U (en) * | 2017-09-21 | 2018-06-19 | 深圳大学 | A kind of rotary laminate electrode electric discharge device |
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