CN112355413A - Metal plate strip electric spark surface treatment device and surface treatment method thereof - Google Patents
Metal plate strip electric spark surface treatment device and surface treatment method thereof Download PDFInfo
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- CN112355413A CN112355413A CN202011169210.5A CN202011169210A CN112355413A CN 112355413 A CN112355413 A CN 112355413A CN 202011169210 A CN202011169210 A CN 202011169210A CN 112355413 A CN112355413 A CN 112355413A
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- box body
- metal plate
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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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
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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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/02—Trimming or deburring
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- Physics & Mathematics (AREA)
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to the technical field of metal plate machining, in particular to a metal plate and strip electric spark surface treatment device which comprises a workbench, wherein a box body is fixedly arranged on the workbench, two fixing blocks are fixedly arranged on the inner bottom wall of the box body, a metal plate is vertically arranged between the two fixing blocks together, kerosene is filled in the box body, the metal plate is arranged in the kerosene, first linear motors are fixedly arranged on the workbench at two sides of the box body, a fixing plate is fixedly arranged on a sliding block of each first linear motor, top plates are vertically and jointly fixed on the top ends of the two fixing plates, a second linear motor is fixedly arranged on the lower surface of each top plate, and an electric telescopic rod is fixedly arranged on a sliding block of each second linear motor. The invention utilizes the electric spark generated between the metal plate and the tool electrode to simultaneously process the surfaces of the two sides of the metal plate, and when the metal plate is processed by utilizing the electric spark surface processing device and the surface processing method of the metal plate, the metal plate is not damaged.
Description
Technical Field
The invention relates to the technical field of metal plate processing, in particular to a metal plate strip electric spark surface treatment device and a surface treatment method thereof.
Background
When a machine tool is used for machining a metal plate, the surface of the metal plate can have defects such as burrs or tool mark grooves, and after the machine tool finishes machining the metal plate, workers are required to perform secondary machining on the machined metal plate to make up the defects such as the burrs or the tool mark grooves, so that the machining procedures of the metal plate can be increased, and the labor amount of the workers can be increased.
Disclosure of Invention
The invention aims to solve the defects that after a metal plate is machined, burrs or tool marks, grooves and the like appear on the surface of the metal plate and secondary machining is needed in the prior art, and provides a metal plate and strip electric spark surface treatment device and a surface treatment method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a metal plate area electric spark surface treatment device, includes the workstation, the fixed box body that is equipped with on the workstation, fixed two fixed blocks that are equipped with on the box body diapire, the metal sheet has vertically been placed jointly between two the fixed blocks, kerosene is equipped with in the box body, and the metal sheet sets up in the kerosene, all be fixed with first linear electric motor on the workstation of box body both sides, fixed plate on the slider of first linear electric motor, common vertical fixation is equipped with the roof on two the fixed plate top, fixed second linear electric motor that is equipped with on the lower surface of roof, fixed electric telescopic handle that is equipped with on the slider of second linear electric motor, fixed the mount that is equipped with down "Contraband" font on the electric telescopic handle, and the top vertical fixation of electric telescopic handle is at the middle part of mount, all incline fixedly on the both ends of mount and be equipped with instrument electrode, and the distance between the top ends of the two tool electrodes is greater than that between the bottom ends of the two tool electrodes, a pulse power supply is fixedly arranged on the lower surface of the workbench, the metal plate and the tool electrodes are connected to the pulse power supply through leads, and a smoke treatment mechanism is fixedly arranged on the box body.
Preferably, the smoke treatment mechanism comprises a gas collecting pipe and a flow dividing pipe, the gas collecting pipe and the flow dividing pipe are respectively fixed at the top ends of two sides of the box body, the opposite side surfaces of the gas collecting pipe and the flow dividing pipe are respectively communicated and fixedly provided with an air inlet cover and an air outlet cover in equal distance, the lower surface of the workbench at one side of the pulse power supply is fixedly provided with a box body, the pulse power supply is fixed on the side surface of the box body, the bottom end of the opposite side surface of the box body and the bottom end of the pulse power supply are inclined and fixedly communicated with an oil guide pipe, the bottom end of the oil guide pipe far away from the box body is fixedly provided with a kerosene recovery mechanism, the other two side surfaces of the box body are respectively communicated and fixedly provided with a second air guide pipe and a first air guide pipe, the top ends of the second air guide pipe and the first air, the inside second air duct of box and first air duct below all fix the oil guide block that is equipped with the triangular prism shape, and lead oil pipe setting between two oil guide blocks, the inside slope of box is fixed and is equipped with waterproof ventilated membrane, waterproof ventilated membrane bottom mounting is on the oil guide block of first air duct below, waterproof ventilated membrane top is fixed on the roof in the box between second air duct and the oil guide pipe.
Preferably, kerosene recycling mechanism includes the oil storage box, lead the bottom that oil pipe kept away from the box and run through oil storage box lateral wall upper end, the fixed oil pump that is equipped with on the oil storage box diapire, the fixed oil pipe that advances that is equipped with on the oil pump, the one end that advances the oil pipe and keep away from the oil pump runs through the box body lateral wall and extends to inside the box body, be fixed with the second control valve on the outside oil pipe that advances of box body, advance to fix on the oil pipe and be equipped with the oil filter, the oil filter is fixed on the workstation lower surface.
Preferably, the fixed back flow that is equipped with of intercommunication on the oil storage box lateral wall, the top that the oil storage box was kept away from to the back flow runs through box body lateral wall bottom and extends to inside the box body, the fixed first control valve that is equipped with on the outside back flow of box body.
The invention also provides a method for treating the electric spark surface of the metal plate, which comprises the following steps:
s1, cleaning and drying the metal plate, vertically placing the metal plate between two fixed blocks in the box body, and enabling kerosene to submerge the upper surface of the metal plate;
s2, respectively connecting the metal plate and the tool electrodes to a pulse power supply by using leads, wherein when the metal plate is connected to the positive electrode of the pulse power supply, the two tool electrodes are simultaneously connected to the negative electrode of the pulse power supply, when the metal plate is connected to the negative electrode of the pulse power supply, the two tool electrodes are simultaneously connected to the positive electrode of the pulse power supply, namely the metal plate and the electrodes on the tool electrodes can be changed, then moving the electric telescopic rod to be processed right above the metal plate by controlling the movement of the first linear motor and the second linear motor, then starting the electric telescopic rod to extend the electric telescopic rod, so that the tool electrodes on the two ends of the fixing frame are inserted into kerosene, and the two tool electrodes are arranged on the two sides of the metal plate and are not in contact with the metal plate;
s3, starting a pulse power supply, using the pulse voltage applied on the metal plate and the tool electrode by the pulse power supply to break down the kerosene, generating spark discharge on both sides of the metal plate, instantly concentrating a large amount of heat energy in a discharge micro-channel, the temperature can reach over ten thousand centigrade, the pressure also changes rapidly, so that the local micro metal material on the working surface of the metal plate at this point is melted and gasified immediately, splashed into the kerosene explosively, condensed rapidly to form solid metal particles, taken away by the kerosene, after the spark is finished, a micro pit mark is left on the surface of the metal plate, the discharge stops for a short time, the kerosene between the metal plate and the tool electrode recovers an insulation state, then, the first linear motor or the second linear motor is slightly moved to change the position of the tool electrode, the next pulse voltage breaks down at another point where the metal plate and the tool electrode are relatively close, spark discharge is generated, and the process is repeated, so that the purpose of simultaneously processing the surfaces of the two sides of the metal plate by utilizing the spark can be achieved;
s4, when the metal plate is machined by utilizing the electric sparks, the suction fan is started, negative pressure can be generated in the box body under the action of the suction fan, oil mist generated in the electric spark machining above the box body can be sucked into the box body by the air inlet cover and filtered by the waterproof breathable film in the box body under the action of the negative pressure, the oil mist is left in the box body, and clean air is discharged to the upper side of the box body by the air outlet cover;
s5, discharging oil obtained by filtering in the box body into the oil storage box through the oil guide pipe, starting the second control valve, the oil pump and the oil filter after a certain amount of oil in the oil storage box is collected, and conveying the oil in the oil storage box into the box body again for spark machining after the oil in the oil storage box is filtered by the oil filter;
s6, after the metal plate is machined, the metal plate is taken out, if the kerosene in the box body needs to be filtered, the first control valve is started, the kerosene in the box body is discharged into the oil storage box, then the first control valve is closed, the second control valve is opened, and under the action of the oil pump and the oil filter, the kerosene is conveyed back to the box body again after being filtered and processed for the next electric spark machining.
The invention provides a metal plate and strip electric spark surface treatment device and a surface treatment method thereof, which have the beneficial effects that: when the device is used, under the action of a pulse power supply, electric sparks generated between the metal plate and the tool electrodes are used for simultaneously processing the surfaces of two sides of the metal plate, mechanical force cannot be generated on the surface of the metal plate when the electric sparks are used for processing, after the metal plate is processed, the defects of burrs, tool mark grooves and the like cannot be generated on the surface of the metal plate, and when the metal plate is processed by the metal plate electric spark surface processing device and the surface processing method thereof, the metal plate cannot be damaged.
Drawings
FIG. 1 is a schematic structural diagram of an electric spark surface treatment device for metal plates and strips according to the present invention;
fig. 2 is a left side view of an electric spark surface treatment device for metal plate strips according to the present invention.
In the figure: the device comprises a workbench 1, a box body 2, a fixing block 3, a metal plate 4, kerosene 5, a first linear motor 6, a top plate 7, a second linear motor 8, an electric telescopic rod 9, a tool electrode 10, a pulse power supply 11, a gas collecting pipe 12, an air inlet cover 13, a box body 14, a suction fan 15, a first gas guide pipe 16, an oil guide pipe 17, an oil storage box 18, a fixing plate 19, an oil inlet pipe 20, an oil filter 21, a first control valve 22, an oil pump 23, a second gas guide pipe 24, an oil guide block 25, a waterproof gas-permeable membrane 26, a shunt pipe 27, an air outlet cover 28, a return pipe 29, a second control valve 30 and a fixing frame 31.
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.
Referring to fig. 1-2, a metal plate electric spark surface treatment device comprises a workbench 1, a box body 2 is fixedly arranged on the workbench 1, two fixing blocks 3 are fixedly arranged on the inner bottom wall of the box body 2, a metal plate 4 is vertically arranged between the two fixing blocks 3, kerosene 5 is arranged in the box body 2, the metal plate 4 is arranged in the kerosene 5, first linear motors 6 are fixedly arranged on the workbench 1 on the two sides of the box body 2, a fixing plate 19 is fixedly arranged on a sliding block of each first linear motor 6, top ends of the two fixing plates 19 are vertically and jointly fixed with a top plate 7, a second linear motor 8 is fixedly arranged on the lower surface of the top plate 7, an electric telescopic rod 9 is fixedly arranged on a sliding block of the second linear motor 8, an inverted Contraband-shaped fixing frame 31 is fixedly arranged on the electric telescopic rod 9, and the top end of the electric telescopic rod 9 is vertically fixed in, all incline fixedly on the both ends of mount 31 and be equipped with tool electrode 10, and the distance between two tool electrode 10 tops is greater than the distance between the bottom, and the fixed pulse power supply 11 that is equipped with on 1 lower surface of workstation, metal sheet 4 and tool electrode 10 all connect on pulse power supply 11 through the wire, the fixed smog processing mechanism that is equipped with on box body 2. When the device is used, under the action of the pulse power supply 11, electric sparks generated between the metal plate 4 and the tool electrode 10 are used for simultaneously processing the two side surfaces of the metal plate 4, mechanical force cannot be generated on the surface of the metal plate 4 when the electric sparks are used for processing, after the metal plate 4 is processed, the defects such as burrs, tool mark grooves and the like cannot be generated on the surface of the metal plate 4, and when the metal plate 4 is processed by the metal plate electric spark surface processing device and the surface processing method thereof, the metal plate 4 cannot be damaged.
The smog processing mechanism comprises a gas collecting pipe 12 and a shunt pipe 27, the gas collecting pipe 12 and the shunt pipe 27 are respectively fixed on the top ends of two sides of a box body 2, the opposite side surfaces of the gas collecting pipe 12 and the shunt pipe 27 are respectively communicated and fixedly provided with an air inlet hood 13 and an air outlet hood 28 at equal intervals, the lower surface of a workbench 1 at one side of a pulse power supply 11 is fixedly provided with a box body 14, the pulse power supply 11 is fixed on the side surface of the box body 14, the bottom end of the opposite side surfaces of the box body 14 and the pulse power supply 11 is inclined and fixedly communicated with an oil guide pipe 17, the bottom end of the oil guide pipe 17 far away from the box body 14 is fixedly provided with a kerosene recovery mechanism, the other two side surfaces of the box body 14 are respectively communicated and fixedly provided with a second air guide pipe 24 and a first air guide pipe 16, the top ends of the second air guide pipe, the suction fan 15 is fixed on the lateral wall of the box body 14, the oil guide block 25 of the triangular prism shape is fixedly arranged below the second air duct 24 and the first air duct 16 inside the box body 14, the oil guide pipe 17 is arranged between the two oil guide blocks 25, the waterproof breathable film 26 is fixedly arranged in the box body 14 in an inclined manner, the bottom end of the waterproof breathable film 26 is fixed on the oil guide block 25 below the first air duct 16, and the top end of the waterproof breathable film 26 is fixed on the top wall of the box body 14 between the second air duct 24 and the oil guide pipe 17. Under the action of the suction fan 15, the air inlet cover 13 can suck the oil mist generated in the electric spark machining above the box body 2 into the box body 14, and under the action of the waterproof breathable film 26 in the box body 14, the oil mist can be remained in the box body 14, so that the oil mist generated in the electric spark machining is prevented from polluting the environment in a workshop.
Kerosene recycling mechanism includes oil storage box 18, oil pipe 17 is kept away from the bottom of box 14 and is run through oil storage box 18 lateral wall upper end, the fixed oil pump 23 that is equipped with on the diapire in the oil storage box 18, the fixed oil pipe 20 that advances that is equipped with on the oil pump 23, the one end that advances oil pipe 20 and keep away from oil pump 23 runs through 2 lateral walls of box body and extends to 2 insides of box body, be fixed with second control valve 30 on the 2 outside oil pipe 20 of box body advances oil pipe, advance oil pipe 20 and go up the fixed oil filter 21 that is equipped with, oil filter 21 fixes on 1 lower surface of workstation, the fixed back flow 29 that is equipped with of intercommunication on the 18 lateral wall of oil storage box, the top that oil storage box 18 was kept away from to back flow 29 runs through 2 lateral wall bottom. The oil filter 21 and the oil pump 23 can not only filter the oil filtered in the tank 14 and feed it back into the cartridge 2, but also filter the kerosene 5 used in the cartridge 2, and can feed the kerosene 5 filtered again into the cartridge 2.
The invention also provides a method for treating the electric spark surface of the metal plate, which comprises the following steps:
s1, cleaning and drying the metal plate 4, vertically placing the metal plate between two fixed blocks 3 in the box body 2, and submerging the upper surface of the metal plate 4 with kerosene 5;
s2, connecting the metal plate 4 and the tool electrode 10 to the pulse power supply 11 by leads respectively, when the metal plate 4 is connected to the positive electrode of the pulse power source 11, two tool electrodes 10 are simultaneously connected to the negative electrode of the pulse power source 11, when the metal plate 4 is connected to the negative pole of the pulse power source 11, the two tool electrodes 10 are simultaneously connected to the positive pole of the pulse power source 11, i.e. the electrodes on the metal plate 4 and the tool electrodes 10 can be changed, then the electric telescopic rod 9 is moved to the position right above the metal plate 4 to be processed by controlling the movement of the first linear motor 6 and the second linear motor 8, then the electric telescopic rod 9 is started, the electric telescopic rod 9 is extended, the tool electrodes 10 on the two ends of the fixing frame 31 are inserted into the kerosene 5, and two tool electrodes 10 are on both sides of the metal plate 4, there is no contact between the tool electrodes 10 and the metal plate 4;
s3, starting the pulse power source 11, using the pulse voltage applied on the metal plate 4 and the tool electrode 10 by the pulse power source 11 to break the kerosene 5, generating spark discharge on both sides of the metal plate 4, instantly concentrating a large amount of heat energy in the discharge micro-channel, the temperature can reach over ten thousand degrees centigrade, the pressure also has a sharp change, thereby causing the local micro metal material on the working surface of the metal plate 4 at this point to be melted and gasified immediately, and splashed into the kerosene 5 explosively, condensed rapidly, forming solid metal particles, taken away by the kerosene 5, leaving a micro pit mark on the surface of the metal plate 4 after the electric spark is finished, the discharge stops for a short time, the kerosene 5 between the metal plate 4 and the tool electrode 10 recovers the insulation state, then, moving the first linear motor 6 or the second linear motor 8 slightly, changing the position of the tool electrode 10, the next pulse voltage is broken down at another point where the metal plate 4 and the tool electrode 10 are relatively close to each other to generate spark discharge, and the process is repeated, so that the purpose of simultaneously processing the two side surfaces of the metal plate 4 by utilizing the spark can be achieved;
s4, when the metal plate 4 is machined by utilizing the electric sparks, the suction fan 15 is started, negative pressure can be generated in the box body 14 under the action of the suction fan 15, oil mist generated in electric spark machining above the box body 2 can be sucked into the box body 14 through the air inlet cover 13 and filtered by the waterproof breathable film 26 in the box body 14, the oil mist is left in the box body 14, and clean air is discharged to the upper side of the box body 2 through the air outlet cover 28;
s5, discharging the oil filtered from the interior of the box 14 into the oil storage box 18 through the oil guide pipe 17, starting the second control valve 30, the oil pump 23 and the oil filter 21 after a certain amount of oil is collected in the oil storage box 18, and re-conveying the oil in the oil storage box 18 into the box body 2 for spark machining after the oil is filtered by the oil filter 21;
s6, after the metal plate 4 is machined, the metal plate 4 is taken out, if the kerosene 5 in the box body 2 needs to be filtered, the first control valve 22 is started, the kerosene 5 in the box body 2 is discharged into the oil storage box 18, then the first control valve 22 is closed, the second control valve 30 is opened, and under the action of the oil pump 23 and the oil filter 21, the kerosene 5 is filtered and then conveyed back to the box body 2 for the next electric spark machining.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a metal plate area electric spark surface treatment device, includes workstation (1), its characterized in that, fixed box body (2) that is equipped with on workstation (1), fixed two fixed blocks (3) of being equipped with on the diapire in box body (2), two metal sheet (4) have vertically been placed jointly between fixed block (3), kerosene (5) are equipped with in box body (2), and metal sheet (4) set up in kerosene (5), all be fixed on workstation (1) of box body (2) both sides and be equipped with first linear electric motor (6), fixed plate (19) of being equipped with on the slider of first linear electric motor (6), two fixed plate (19) top is the vertical fixation jointly equipped with roof (7), the fixed second linear electric motor (8) that is equipped with on the lower surface of roof (7), fixed electric telescopic handle (9) of being equipped with on the slider of second linear electric motor (8), fixed mount (31) that is equipped with down "Contraband" font on electric telescopic handle (9), and electric telescopic handle (9) top vertical fixation is at the middle part of mount (31), all incline fixedly on the both ends of mount (31) and be equipped with instrument electrode (10), and the distance between two instrument electrode (10) tops is greater than the distance between the bottom, the fixed pulse power source (11) that is equipped with on workstation (1) lower surface, metal sheet (4) and instrument electrode (10) all connect on pulse power source (11) through the wire, the fixed smog processing mechanism that is equipped with on box body (2).
2. The metal plate electric spark surface treatment device according to claim 1, wherein the smoke treatment mechanism comprises a gas collecting pipe (12) and a shunt pipe (27), the gas collecting pipe (12) and the shunt pipe (27) are respectively fixed on the top ends of two sides of the box body (2), the opposite sides of the gas collecting pipe (12) and the shunt pipe (27) are respectively communicated and fixedly provided with a gas inlet hood (13) and a gas outlet hood (28) at equal intervals, the lower surface of the workbench (1) on one side of the pulse power supply (11) is fixedly provided with a box body (14), the pulse power supply (11) is fixed on the side of the box body (14), the bottom ends of the opposite sides of the box body (14) and the pulse power supply (11) are inclined and fixedly communicated with a gas guide pipe (17), the bottom end, far away from the box body (14), of the gas guide pipe (17) is fixedly provided with a kerosene recovery mechanism, and the other two sides of the box body (14) are respectively communicated and fixedly provided with The top ends of the second air duct (24) and the first air duct (16) far away from the box body (14) are respectively communicated and fixed on the air collecting pipe (12) and the shunt pipe (27), a suction fan (15) is fixedly arranged on the first air duct (16), the suction fan (15) is fixed on the outer side wall of the box body (14), a triangular prism-shaped oil guide block (25) is fixedly arranged below the second air guide pipe (24) and the first air guide pipe (16) in the box body (14), the oil guide pipe (17) is arranged between the two oil guide blocks (25), a waterproof ventilated membrane (26) is obliquely and fixedly arranged in the box body (14), the bottom end of the waterproof ventilated membrane (26) is fixed on an oil guide block (25) below the first air guide tube (16), the top end of the waterproof breathable film (26) is fixed on the inner top wall of the box body (14) between the second air duct (24) and the oil duct (17).
3. The metal plate electric spark surface treatment device according to claim 2, wherein the kerosene recycling mechanism comprises an oil storage box (18), the bottom end of the oil guide pipe (17) far away from the box body (14) penetrates through the upper end of the side wall of the oil storage box (18), an oil pump (23) is fixedly arranged on the inner bottom wall of the oil storage box (18), an oil inlet pipe (20) is fixedly arranged on the oil pump (23), one end, far away from the oil pump (23), of the oil inlet pipe (20) penetrates through the side wall of the box body (2) and extends to the inside of the box body (2), a second control valve (30) is fixedly arranged on the oil inlet pipe (20) outside the box body (2), an oil filter (21) is fixedly arranged on the oil inlet pipe (20), and the oil filter (21) is fixedly arranged on the lower surface of the workbench (1).
4. A metal plate electric spark surface treatment device according to claim 3, characterized in that a return pipe (29) is fixedly connected to the side wall of the oil storage box (18), the top end of the return pipe (29) far away from the oil storage box (18) penetrates the bottom end of the side wall of the box body (2) and extends into the box body (2), and a first control valve (22) is fixedly arranged on the return pipe (29) outside the box body (2).
5. A method for the electro-spark surface treatment of metal sheets according to claims 1-4, characterised in that it comprises the following steps:
s1, cleaning and drying the metal plate (4), vertically placing the metal plate between two fixing blocks (3) in the box body (2), and submerging kerosene (5) on the upper surface of the metal plate (4);
s2, respectively connecting the metal plate (4) and the tool electrodes (10) to a pulse power supply (11) by using leads, when the metal plate (4) is connected to the positive electrode of the pulse power supply (11), the two tool electrodes (10) are simultaneously connected to the negative electrode of the pulse power supply (11), when the metal plate (4) is connected to the negative electrode of the pulse power supply (11), the two tool electrodes (10) are simultaneously connected to the positive electrode of the pulse power supply (11), namely, the electrodes on the metal plate (4) and the tool electrodes (10) can be changed, then moving the electric telescopic rod (9) to the position right above the metal plate (4) to be processed by controlling the movement of the first linear motor (6) and the second linear motor (8), then starting the electric telescopic rod (9), extending the electric telescopic rod (9), and inserting the tool electrodes (10) on the two ends of the fixed frame (31) into kerosene (5), and the two tool electrodes (10) are arranged on two sides of the metal plate (4), and the tool electrodes (10) are not in contact with the metal plate (4);
s3, starting a pulse power supply (11), using pulse voltage applied on a metal plate (4) and a tool electrode (10) by the pulse power supply (11) to break down kerosene (5), generating spark discharge on both sides of the metal plate (4), instantly concentrating a large amount of heat energy in a discharge micro-channel, the temperature can reach more than ten thousand ℃, the pressure also has a sharp change, thereby leading the local trace metal material on the working surface of the metal plate (4) at the point to be immediately melted and gasified, and explosively splashed into the kerosene (5), rapidly condensing to form solid metal particles which are taken away by the kerosene (5), leaving a tiny pit mark on the surface of the metal plate (4) after the spark is finished, leading the kerosene (5) between the metal plate (4) and the tool electrode (10) to recover an insulation state, and then slightly moving a first linear motor (6) or a second linear motor (8), changing the position of the tool electrode (10), breaking down the next pulse voltage at another point where the metal plate (4) and the tool electrode (10) are relatively close to each other to generate spark discharge, and repeating the process to achieve the purpose of simultaneously processing the surfaces of the two sides of the metal plate (4) by utilizing the spark;
s4, when the metal plate (4) is machined by utilizing electric sparks, the suction fan (15) is started, negative pressure can be generated in the box body (14) under the action of the suction fan (15), oil mist generated in electric spark machining above the box body (2) can be sucked into the box body (14) through the air inlet cover (13) and filtered by the waterproof breathable film (26) in the box body (14), the oil mist is left in the box body (14), and clean air is discharged to the upper side of the box body (2) through the air outlet cover (28);
s5, discharging oil obtained by filtering the interior of the box body (14) into the oil storage box (18) through the oil guide pipe (17), starting the second control valve (30), the oil pump (23) and the oil filter (21) after a certain amount of oil in the oil storage box (18) is collected, and re-conveying the oil in the oil storage box (18) into the box body (2) through the filtering of the oil filter (21) for spark machining;
s6, after the metal plate (4) is machined, the metal plate (4) is taken out, if the kerosene (5) in the box body (2) needs to be filtered, the first control valve (22) is started, the kerosene (5) in the box body (2) is discharged into the oil storage box (18), then the first control valve (22) is closed, the second control valve (30) is opened, and under the action of the oil pump (23) and the oil filter (21), the kerosene (5) is filtered and then conveyed back into the box body (2) for the next electric spark machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011169210.5A CN112355413B (en) | 2020-10-28 | 2020-10-28 | Metal plate strip electric spark surface treatment device and surface treatment method thereof |
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| CN202011169210.5A CN112355413B (en) | 2020-10-28 | 2020-10-28 | Metal plate strip electric spark surface treatment device and surface treatment method thereof |
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| CN112355413A true CN112355413A (en) | 2021-02-12 |
| CN112355413B CN112355413B (en) | 2022-08-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN211759022U (en) * | 2020-03-23 | 2020-10-27 | 青岛乐泰印刷包装有限公司 | Electric spark device for box pasting machine |
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| CN101003100A (en) * | 2007-01-19 | 2007-07-25 | 哈尔滨工业大学 | Electrolytic lathe working method |
| CN106862685A (en) * | 2017-02-24 | 2017-06-20 | 哈尔滨工业大学深圳研究生院 | A kind of electrolysis electric discharge machining method of use plane foil electrode |
| CN107335878A (en) * | 2017-08-22 | 2017-11-10 | 岑溪市东正动力科技开发有限公司 | A kind of lathe cleaner |
| CN107790829A (en) * | 2017-11-27 | 2018-03-13 | 沈阳职业技术学院 | A kind of electric spark machine combined micro-machining device and its processing method |
| CN108406025A (en) * | 2018-01-18 | 2018-08-17 | 南京航空航天大学 | Microcapillary electrolysis cuts big thickness workpiece method and device |
| CN211759022U (en) * | 2020-03-23 | 2020-10-27 | 青岛乐泰印刷包装有限公司 | Electric spark device for box pasting machine |
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