CN111872503A - Cross-scale discharge machining device and method - Google Patents
Cross-scale discharge machining device and method Download PDFInfo
- Publication number
- CN111872503A CN111872503A CN202010877156.3A CN202010877156A CN111872503A CN 111872503 A CN111872503 A CN 111872503A CN 202010877156 A CN202010877156 A CN 202010877156A CN 111872503 A CN111872503 A CN 111872503A
- Authority
- CN
- China
- Prior art keywords
- wire
- electrode
- cross
- discharge machining
- wire electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
-
- 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
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
- B23H7/104—Wire tension control
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to the technical field of electric spark machining, and discloses a cross-scale electric discharge machining device and a method, wherein the cross-scale electric discharge machining device comprises a fixed plate fixedly connected with an action end of electric discharge machining equipment, a first guide wheel and a second guide wheel are arranged on the fixed plate, a wire electrode is wound on a wheel surface of the first guide wheel and a wheel surface of the second guide wheel, a wire ejecting frame is arranged in the middle of the guide plate and can push the wire electrode to a direction far away from the fixed plate to exceed a connecting line between the first guide wheel and the second guide wheel in a wire electrode tightening state, the wire ejecting frame enables the wire electrode to exceed the connecting line between the wire electrode tightening states, a wire electrode supporting mode is changed, forced vibration of the wire electrode is effectively inhibited, forming precision of electric discharge machining is greatly improved, the wire electrode keeps wire running during machining, electrode loss can be timely compensated, machining precision is kept, and the cross-scale long channel machining is particularly suitable for machining, has great popularization value and wide application prospect.
Description
Technical Field
The invention relates to the technical field of electric spark machining, in particular to a cross-scale discharge machining device and method.
Background
The electric discharge machining is a method of machining a workpiece in a certain medium by an electroerosion action of pulse discharge between a tool electrode and a workpiece electrode. The electric spark machining is a method for machining by utilizing electricity and heat energy, which is researched and gradually applied to production in the 40 th century. In the field of electrical discharge machining technology, Wire Electrical Discharge Machining (WEDM) is the most attractive technology and is widely applied to die manufacturing, machining of difficult-to-machine materials and efficient, precise and micro-precise machining of three-dimensional complex-profile parts.
The existing wire cut electric discharge machine is generally composed of guide wheels, a tension wheel, a wire releasing cylinder, a wire collecting cylinder, a pulse power supply and other parts, two guide wheels are adopted to support electrode wires, the workpiece is removed by the electric spark discharge erosion between the electrode wire between the two guide wheels and the workpiece, the electrode wire is supported at two ends, the shape of the electrode wire between the two guide wheels is a straight line theoretically, however, the electrode wire has low rigidity and can generate flexural deformation and forced vibration due to the influence of discharge power, electromagnetic force, electrostatic force, fluid scouring and damping effect, the actual motion track is very complex and is analyzed from the vibration direction of the electrode wire, it not only has longitudinal vibration along the axial direction of the electrode wire, but also has transverse vibration perpendicular to the axial plane of the electrode wire, the width of a cutting seam of a workpiece mainly comprises the diameter of a wire electrode, the distance of a discharge gap and the transverse amplitude of the wire electrode, and the amplitude of the transverse vibration of the wire electrode directly influences the machining precision of linear cutting.
The electrode wire is used as a tool electrode for the wire-cut electric discharge machining and directly participates in spark discharge, the vibration of the electrode wire in the motion process inevitably causes the reduction of the surface quality and the machining precision of the wire-cut electric discharge machining, and simultaneously, the spark discharge state between a workpiece and the electrode wire is unstable, the rollback is increased, and the machining efficiency is reduced. In addition, the wire electrode has large amplitude in the middle and small amplitude at two ends, so that the machining effect is waist drum-shaped, the larger the thickness of a cut workpiece is, the larger the span of the wire electrode is, the smaller the free vibration frequency of the wire electrode is, the more easily the wire electrode is influenced by an external vibration source to generate resonance, the more obvious the vibration effect is, the larger the vibration amplitude of the wire electrode is, and the larger the size deviation of the machining characteristic is.
Therefore, in the field of electrical discharge machining technology, there is a need for an electrical discharge machining device and method that can effectively suppress the vibration of a wire electrode by changing the wire electrode supporting manner, so that the machining quality and the forming precision of electrical discharge wire cutting are greatly improved, and the electrical discharge machining device and method are particularly suitable for machining cross-scale long-channel microgrooves.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides the electric discharge machining device and the electric discharge machining method which can effectively inhibit the vibration of the wire electrode by changing the wire electrode supporting mode, greatly improve the machining quality and the forming precision of the wire electric discharge machining, and are particularly suitable for machining the cross-scale long-channel microgrooves.
The invention is realized by the following technical scheme:
a cross-scale electric discharge machining device comprises a fixed plate fixedly connected with an action end of an electric discharge machining device, wherein a first guide wheel and a second guide wheel are arranged on the fixed plate, a wire electrode is wound on a wheel surface of the first guide wheel and a wheel surface of the second guide wheel, a wire ejecting frame is arranged in the middle of the fixed plate, and the wire ejecting frame can push the wire electrode towards a direction far away from the fixed plate to a connecting line exceeding a wire electrode tightening state between the first guide wheel and the second guide wheel.
Further, the jackscrew frame is including setting up the main fagging that extends at jackscrew frame middle part towards keeping away from the fixed plate direction, the end that the main fagging extended end is equipped with the guide slot that is used for holding the wire electrode, the degree of depth of guide slot is less than the diameter of wire electrode.
Further, the main supporting plate both sides are equipped with first side arm-tie and second side arm-tie respectively, first side arm-tie extends towards the direction of keeping away from the fixed plate and extends towards the direction of keeping away from the backup pad simultaneously, second side arm-tie extends towards the direction of keeping away from the fixed plate and extends towards the direction of keeping away from the backup pad simultaneously, the end that first side arm-tie extended end is equipped with the first guiding hole that supplies the electrode silk to pass, the end that second side arm-tie extended end is equipped with the second guiding hole that supplies the electrode silk to pass.
Furthermore, the first side pulling plate and the second side pulling plate are integrally formed or fixedly connected with the main supporting plate to form a relatively fixed position relation.
Furthermore, the first side pulling plate and the second side pulling plate are respectively connected with the main supporting plate in a sliding mode, and the overhanging length of the first side pulling plate and the overhanging length of the second side pulling plate can be controlled and adjusted.
Furthermore, the first side pulling plate and the second side pulling plate are respectively inserted into two side faces of the main supporting plate facing the workpiece, and the insertion depth can be controlled and adjusted.
The invention also provides application of the cross-scale electric discharge machining device, and the cross-scale electric discharge machining device is used for machining the cross-scale long channel.
Further, the extension path of the trans-scale long channel is in a linear type, a bent arc shape or a turning shape.
The invention also provides a cross-scale electric discharge machining method using the cross-scale electric discharge machining device, which comprises the following steps:
A. fixing the workpiece on an operating platform of electric spark machining equipment and enabling the surface to be machined of the workpiece to face a wire jacking frame;
B. selecting a suitable wire electrode according to the size of the channel and/or groove and/or cavity to be formed;
C. leading out the wire electrode from the wire unwinding barrel, bypassing the first guide wheel, passing through the first guide hole and the second guide hole, bypassing the second guide wheel, bypassing the tension wheel, and leading into the wire winding barrel;
D. adjusting the tension wheel to enable the electrode wire to be loosened, embedding the electrode wire part between the first guide hole and the second guide hole into the guide groove, and adjusting the tension wheel to enable the electrode wire to be tightened;
E. starting the electric spark machining equipment, calling a preset program, enabling the jackscrew to move along a set route, and simultaneously enabling the electrode wire to run, wherein the part of the electrode wire exposed out of the guide groove carries out electric erosion machining on the workpiece.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention comprises a fixed plate fixedly connected with the action end of an electric discharge machining device, a first guide wheel and a second guide wheel are arranged on the fixed plate, a wire electrode is wound on the wheel surface of the first guide wheel and the wheel surface of the second guide wheel, a wire ejecting frame is arranged in the middle of the guide plate and can push the wire electrode to a direction far away from the fixed plate to exceed a connecting line between the first guide wheel and the second guide wheel in a wire electrode wire tensioning state, the wire ejecting frame enables the wire electrode to exceed the connecting line between the wire electrode tensioning state and changes the wire electrode supporting mode, so that forced vibration of the wire electrode is effectively inhibited, vibration of the wire electrode is well inhibited, better dynamic stability is achieved, short circuit is reduced, machining efficiency is improved, the width of a forming groove is closer to the diameter of the wire electrode, forming precision of electric discharge machining is greatly improved, wire electrode running is kept in the machining process, and electrode loss can be compensated in time, the machining precision is kept, in addition, the groove width of the forming channel is not influenced by the characteristic length, the method is particularly suitable for machining the long channel with the cross-scale structure, and the method has great popularization value and wide application prospect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a macroscopic view of a cross-scale long channel of a workpiece surface in an embodiment of the invention;
FIG. 3 is a schematic view under a microscope of a workpiece surface cross-dimension long channel end in an embodiment of the invention;
FIG. 4 is a schematic view under a microscope of the middle of a cross-scale long channel of a workpiece surface in an embodiment of the invention;
FIG. 5 is a schematic view under a microscope of a workpiece surface cross-scale long channel tail in an embodiment of the invention;
FIG. 6 is a schematic microscopic view of a cross-scale long channel cross-section of a workpiece surface in an embodiment of the invention.
Reference numbers and corresponding part names in the drawings:
1-a top thread frame, 2-a first side pull plate, 3-a first guide hole, 4-a wire electrode, 5-a guide groove, 6-a second guide hole, 7-a second side pull plate, 8-a main supporting plate, 9-a fixing plate, 10-a first guide wheel, 11-a workpiece, 12-a fastener and 13-a second guide wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
The utility model provides a stride yardstick electric discharge machining device, including the fixed plate 9 with the rigid coupling of electric discharge machining equipment action end, be equipped with first leading wheel 10 and second leading wheel 13 on the fixed plate 9, the wheel face of first leading wheel 10 and the wheel face of second leading wheel 13 go up around establishing wire electrode 4, fixed plate 9 middle part is equipped with jackscrew frame 1 through fastener 12, jackscrew frame 1 can push wire electrode 4 towards keeping away from the direction of fixed plate 9 to surpassing the line of wire electrode 4 straight state between first leading wheel 10 and the second leading wheel 13. In connection with the position of the description in fig. 1, it will be understood that the wire electrode 4 may be located on the upper run of the first guide wheel 10 and the upper run of the second guide wheel 13, or on the lower tread of the first guide wheel 10 and the lower tread of the second guide wheel 13, or on the upper tread of the first guide wheel 10 and the lower tread of the second guide wheel 13, or the electrode wire 4 is positioned on the lower wheel surface of the first guide wheel 10 and the upper wheel surface of the second guide wheel 13, and the electrode wire 4 exceeds a connecting line of the electrode wire 4 between the first guide wheel 10 and the second guide wheel 13 in a stretched state, namely the electrode wire 4 between the two guide wheels can exceed the position of the electrode wire 4 in the stretched state in the same winding mode through the pushing action of the wire ejecting frame 1, therefore, unnecessary interaction between the wire electrode 4 close to the guide wheel and the workpiece 11 at two sides when the workpiece 11 is subjected to electric discharge machining by the middle wire electrode 4 is avoided. The wire pushing frame 1 enables the wire electrode 4 to exceed a connecting line of a tightened state of the wire electrode 4, and changes a supporting mode of the wire electrode 4, so that forced vibration of the wire electrode 4 is effectively inhibited, vibration of the wire electrode 4 is well inhibited, better dynamic stability is achieved, short circuit is reduced, machining efficiency is improved, the width of a forming groove is closer to the diameter of the wire electrode 4, forming precision of discharge machining is greatly improved, the wire electrode 4 keeps running during machining, electrode loss can be timely compensated, machining precision is kept, the width of the forming channel is not affected by characteristic length, and the wire pushing frame is particularly suitable for machining of long channels with cross dimensions.
Further, the jackscrew frame 1 is including setting up the main fagging 8 that extends in the 1 middle part of jackscrew frame towards keeping away from fixed plate 9 direction, and the end that main fagging 8 extends the end is equipped with the guide slot 5 that is used for holding wire electrode 4, and the degree of depth of guide slot 5 is less than the diameter of wire electrode 4. It can be understood that when the main supporting plate 8 is extended to a long length, the first guide wheel 10 and the second guide wheel 13 are far away from the workpiece 11, and thus can be used for edm without generating unnecessary interaction. The end of the extending end of the main supporting plate 8 is provided with a guide groove 5, the extending direction of the guide groove 5 is obviously parallel to the electrode wire 4, and the depth of the guide groove 5 is smaller than the diameter of the electrode wire 4 so as to ensure that a part of the electrode wire 4 is positioned outside the guide groove 5 and can generate the required electroerosion processing between the electrode wire and the workpiece 11.
Further, 8 both sides of main fagging are equipped with first side arm-tie 2 and second side arm-tie 7 respectively, first side arm-tie 2 extends towards the direction of keeping away from fixed plate 9 and extends towards the direction of keeping away from the backup pad simultaneously, second side arm-tie 7 extends towards the direction of keeping away from fixed plate 9 and extends towards the direction of keeping away from the backup pad simultaneously, the end that first side arm-tie 2 extends the end is equipped with the first guiding hole 3 that supplies electrode silk 4 to pass, the end that second side arm-tie 7 extends the end is equipped with the second guiding hole 6 that supplies electrode silk 4 to pass. It can be understood that, when the main supporting plate 8 extends for a short time, the first guide wheel 10 and the second guide wheel 13 on both sides are closer to the workpiece 11, and therefore the first side pulling plate 2 and the second side pulling plate 7 are additionally arranged, and the wire electrode 4 passes through the first guide hole 3 and the second guide hole 6, under the state that the wire electrode 4 is tightened, the main supporting plate 8 applies thrust far away from the fixing plate 9 to the wire electrode 4, and the first side pulling plate 2 and the second side pulling plate 7 on both sides apply tension near the fixing plate 9 to the wire electrode 4, so that unnecessary interaction between the wire electrode 4 and the workpiece 11 is avoided, forced vibration of the wire electrode 4 can be more effectively inhibited or even avoided, and processing precision and forming quality are ensured.
Furthermore, the first side pulling plate 2 and the second side pulling plate 7 are integrally formed or fixedly connected with the main supporting plate 8 to form a relatively fixed position relation. It can be understood that the first side pulling plate 2, the main supporting plate 8 and the second side pulling plate 7 form a relatively fixed position relationship, and the structure is stable, the strength is good, and the device is more suitable for large-batch processing.
Further, the first side pulling plate 2 and the second side pulling plate 7 are respectively connected with the main supporting plate 8 in a sliding mode, and the overhanging length of the first side pulling plate 2 and the overhanging length of the second side pulling plate 7 can be adjusted in a controlled mode. Furthermore, the first side pulling plate 2 and the second side pulling plate 7 are respectively inserted into two side surfaces of the main supporting plate 8 facing the workpiece 11, and the insertion depth can be controlled and adjusted. It can be understood that, length is controllable not only can be used for adjusting elasticity and inclination as required, can also adapt to the condition of the non-straight face of working face, for example at jackscrew frame 1 along with fixed plate 9 advance in-process lifting simultaneously or descend, the inclination of the side arm-tie of both sides this moment just can set up to different states to when taking into account the demand of evading the interference, can also avoid wire electrode 4 degree of buckling too big, and then the life of extension consumptive material.
The invention also provides application of the cross-scale electric discharge machining device, and the cross-scale electric discharge machining device is used for machining the cross-scale long channel. Furthermore, the extension path of the cross-scale long channel is in a linear type, a bent arc type or a turning type. It can be understood that the span-scale micro long through groove with different cross-sectional shapes can be manufactured by adopting the electrode wires 4 with different sizes and different shapes, and the jackscrew frame 1 can form long channels with various shapes such as a linear type, a bent arc shape or a bent shape and the like along with the fixed plate 9 travelling according to different paths.
The invention also provides a cross-scale electric discharge machining method using the cross-scale electric discharge machining device, which comprises the following steps:
A. fixing the workpiece 11 on an operating platform of the electric spark machining equipment and enabling the surface to be machined of the workpiece 11 to face the wire jacking frame 1;
B. selecting a suitable wire electrode 4 according to the size of the channel and/or groove and/or cavity to be formed;
C. leading out the wire electrode 4 from the wire unwinding barrel, bypassing the first guide wheel 10, passing through the first guide hole 3 and the second guide hole 6, bypassing the second guide wheel 13, bypassing the tension wheel, and leading into the wire winding barrel;
D. adjusting the tension pulley to enable the wire electrode 4 to be loosened, embedding the wire electrode 4 between the first guide hole 3 and the second guide hole 6 into the guide groove 5, and adjusting the tension pulley to enable the wire electrode 4 to be tightened;
E. starting the electric spark machining equipment, calling a preset program, enabling the wire jacking frame 1 to move along a set route, simultaneously enabling the electrode wire 4 to run, and carrying out electric erosion machining on the workpiece 11 by the part, exposed out of the guide groove 5, of the electrode wire 4.
According to the above processing method, the following examples were carried out:
four cross-scale long and thin semicircular section through grooves with the length of 70mm and the cutting depth of 48 mu m are cut on a red copper block by using molybdenum wires with the diameter of 0.1mm, and a macroscopic schematic diagram of a cross-scale long channel on the surface of a machined workpiece 11 is shown in FIG. 2. Measuring the processing characteristics under an optical microscope, and respectively selecting three sections of the upper end part, the middle part and the tail part of the workpiece 11 to measure the groove width dimension, as shown in figure 3, the groove width dimension of the end part is distributed between 99.13 and 99.52 mu m, and the tolerance is 0.39 mu m; as shown in FIG. 4, the width of the middle groove is distributed between 101.05 μm and 101.62 μm with a tolerance of 0.57 μm; as shown in FIG. 5, the width of the tail end slot is distributed between 99.02 μm and 101.46 μm with a tolerance of 2.44 μm; the whole distribution is between 99.02 to 101.62 mu m, and the tolerance is 2.6 mu m. As shown in fig. 6, the accuracy of the channel sectional shape was observed from the end face, and the measurement by three-point circle fitting showed that the machined feature had excellent roundness. The machining process is shown to be capable of inhibiting the vibration of the electrode wire 4 well, the forming precision is high, the machining characteristic width is not affected by the length, and the problem that the cross-scale long and thin channel is difficult to machine can be effectively solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and do not indicate or imply that the components or mechanisms so referred to must be in a particular orientation, constructed and operated in a particular orientation, and thus are not to be considered as limiting the invention.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The cross-scale electric discharge machining device comprises a fixing plate fixedly connected with an action end of an electric discharge machining device, and is characterized in that a first guide wheel (10) and a second guide wheel (13) are arranged on the fixing plate (9), a wire electrode (4) is wound on a wheel surface of the first guide wheel (10) and a wheel surface of the second guide wheel (13), a wire ejecting frame (1) is arranged in the middle of the fixing plate (9), and the wire ejecting frame (1) can push the wire electrode (4) towards a direction far away from the fixing plate (9) to exceed a connecting line in a stretched state of the wire electrode (4) between the first guide wheel (10) and the second guide wheel (13).
2. A cross-scale electrical discharge machining device according to claim 1, wherein the wire holder (1) comprises a main support plate (8) arranged in the middle of the wire holder (1) and extending away from the fixing plate (9), the end of the extending end of the main support plate (8) is provided with a guide groove (5) for accommodating the electrode wire (4), and the depth of the guide groove (5) is smaller than the diameter of the electrode wire (4).
3. The cross-scale electric discharge machining device according to claim 2, wherein the main supporting plate (8) is provided with a first side pulling plate (2) and a second side pulling plate (7) on two sides, the first side pulling plate (2) extends in a direction away from the fixing plate (9) and extends in a direction away from the supporting plate, the second side pulling plate (7) extends in a direction away from the fixing plate (9) and extends in a direction away from the supporting plate, the end of the extending end of the first side pulling plate (2) is provided with a first guide hole (3) for the electrode wire (4) to pass through, and the end of the extending end of the second side pulling plate (7) is provided with a second guide hole (6) for the electrode wire (4) to pass through.
4. A cross-scale electrical discharge machining apparatus according to claim 3, wherein the first side pull plate (2) and the second side pull plate (7) are integrally formed or fixedly connected with the main support plate (8) to form a relatively fixed positional relationship.
5. A cross-scale electrical discharge machining apparatus according to claim 3, wherein the first side pulling plate (2) and the second side pulling plate (7) are slidably connected with the main supporting plate (8), respectively, and the overhanging length of the first side pulling plate (2) and the second side pulling plate (7) can be controlled and adjusted.
6. A cross-scale electrical discharge machining apparatus according to claim 5, wherein the first side pulling plate (2) and the second side pulling plate (7) are respectively inserted into two sides of the main supporting plate (8) facing the workpiece (11), and the insertion depth can be controlled and adjusted.
7. Use of a cross-dimension electrical discharge machining apparatus according to any one of claims 1 to 6 for machining a cross-dimension long channel.
8. The use of a cross-dimension electric discharge machining device according to claim 7, wherein the cross-dimension long channel extending path is linear, curved or bent.
9. A cross-scale electric discharge machining method using the cross-scale electric discharge machining apparatus according to any one of claims 3 to 6, comprising the steps of:
A. fixing a workpiece (11) on an operating platform of the electric discharge machining equipment and enabling a surface to be machined of the workpiece (11) to face a wire jacking frame (1);
B. selecting a suitable wire electrode (4) according to the size of the channel and/or groove and/or cavity to be formed;
C. leading out the wire electrode (4) from the wire unwinding barrel, bypassing the first guide wheel (10), passing through the first guide hole (3) and the second guide hole (6), bypassing the second guide wheel (13), bypassing the tension wheel and leading into the wire winding barrel;
D. adjusting the tension pulley to enable the wire electrode (4) to be loosened, embedding the wire electrode (4) between the first guide hole (3) and the second guide hole (6) into the guide groove (5), and adjusting the tension pulley to enable the wire electrode (4) to be tightened;
E. starting the electric spark machining equipment, calling a preset program, enabling the wire jacking frame (1) to move along a set route, simultaneously enabling the electrode wire (4) to run, and carrying out electric erosion machining on the workpiece (11) by the part, exposed out of the guide groove (5), of the electrode wire (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877156.3A CN111872503A (en) | 2020-08-27 | 2020-08-27 | Cross-scale discharge machining device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877156.3A CN111872503A (en) | 2020-08-27 | 2020-08-27 | Cross-scale discharge machining device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111872503A true CN111872503A (en) | 2020-11-03 |
Family
ID=73198583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010877156.3A Pending CN111872503A (en) | 2020-08-27 | 2020-08-27 | Cross-scale discharge machining device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111872503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055920A (en) * | 2022-06-24 | 2022-09-16 | 中国第一汽车股份有限公司 | Machining method for preventing deformation of longer special-shaped part |
-
2020
- 2020-08-27 CN CN202010877156.3A patent/CN111872503A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055920A (en) * | 2022-06-24 | 2022-09-16 | 中国第一汽车股份有限公司 | Machining method for preventing deformation of longer special-shaped part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111872503A (en) | Cross-scale discharge machining device and method | |
| JP6872029B2 (en) | Double one-track electrode discharge wire cutting method | |
| CN212526400U (en) | Cross-scale electric discharge machining device | |
| CN212769019U (en) | Welding wire expansion type paying-off machine | |
| GB2069396A (en) | Wire-cutting electroerosion machining method and apparatus | |
| CN106270841A (en) | Flexible metal thin plate micro-group groove continuous electrolysis system of processing and method | |
| CN112008169A (en) | Double-head wire cut electric discharge machine and cutting method | |
| CN109909564A (en) | A kind of double block electrode electric spark of replaceable piece of electrode is counter to copy device | |
| CN1102474C (en) | Wire electrode cutting machine | |
| CN212552128U (en) | Double-head wire cut electrical discharge machine | |
| CN114700568B (en) | Method and device for processing groove structure by combining electric spark and electrolysis of belt electrode | |
| Song et al. | V-grooving using a strip EDM | |
| CN101428366B (en) | Wire-electrode cutting electromachining machine tool for asymmetrical guide frame notch cutting in series | |
| CN212217361U (en) | Linear cutting electrode wire calibrating device | |
| CN210789561U (en) | Wire stabilizing device for electrospark wire-electrode cutting | |
| CN108672851A (en) | A kind of very high frequency(VHF) self-vibration declines can electric machining clock | |
| CN208262024U (en) | Digital control wire-electrode cutting wire electrode space morpheme control device and nc wire-cutting | |
| CN210649556U (en) | Clamp platform of numerical control machine tool | |
| Chen et al. | Study of an ultrafine w-EDM technique | |
| KR200436567Y1 (en) | Jig used Wire Electric Discharge Machining | |
| Jing et al. | Micro Machining by Wire-Preposed Jet Electrochemical Machining | |
| JP4147722B2 (en) | EDM machine | |
| CN105252091A (en) | Electric discharge machining method for supporting faces of optical element flexible supporting structures | |
| CN214721242U (en) | Linear cutting machining tool | |
| CN220196553U (en) | Numerical control reciprocating wire-cut electric discharge machining auxiliary equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |