CN112453600A - Electric spark machine tool for processing metal products - Google Patents
Electric spark machine tool for processing metal products Download PDFInfo
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- CN112453600A CN112453600A CN202011306085.8A CN202011306085A CN112453600A CN 112453600 A CN112453600 A CN 112453600A CN 202011306085 A CN202011306085 A CN 202011306085A CN 112453600 A CN112453600 A CN 112453600A
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- 239000002184 metal Substances 0.000 title claims abstract description 31
- 238000010892 electric spark Methods 0.000 title abstract description 9
- 238000003754 machining Methods 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims description 171
- 230000007246 mechanism Effects 0.000 claims description 51
- 238000003860 storage Methods 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 35
- 238000011010 flushing procedure Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000012224 working solution Substances 0.000 claims description 30
- 238000004080 punching Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000005406 washing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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
-
- 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
- B23H1/08—Working media
-
- 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
- B23H1/10—Supply or regeneration of working media
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses an electric spark machine tool for processing metal products, which comprises a machine body and a stand column, wherein a workbench is arranged on the machine body, a main shaft head is arranged on the stand column, the main shaft head and the workbench are correspondingly arranged, a tool electrode is arranged on the main shaft head, and the main shaft head is used for controlling a discharge gap between a workpiece and the tool electrode; the electric erosion machining device is stable in structure, reasonable in layout and stable in operation, can realize timely and rapid discharge of electric erosion products generated in the electric erosion machining process from the workpiece machining position and an electrode gap, keeps stable electric erosion machining, and avoids adverse effects of the electric erosion products on next electric erosion machining.
Description
Technical Field
The invention relates to the field of electric spark machine tools, in particular to an electric spark machine tool for processing metal products.
Background
An electric discharge machine is a machine tool for machining metal parts by utilizing the principle of electric discharge to perform electric erosion on metal surfaces. Since the electric discharge machining principle is different from the general metal cutting principle, the electric discharge machine is different from the general metal cutting machine in structure. Firstly, it has a pulse power supply device with large energy to provide energy for producing electric spark, and its main function is to produce repeated high-intensity electric pulse on the tool electrode and workpiece electrode to produce discharge electric spark; in order to ensure the discharge gap between electrodes of several microns to several hundred microns, an automatic gap regulator with high sensitivity is used for automatically measuring and regulating the gap at any time.
When an electric spark machine tool is used for carrying out electric erosion machining, an electric erosion product is generated at a machining position, a working fluid circulating system is generally used for discharging the electric erosion product from an electrode gap, but when the electric erosion machining is carried out on a groove-shaped machining position on a workpiece, the electric erosion product is difficult to discharge, interference can be caused for next electric erosion machining, machining is influenced, some metal material electric erosion products are easily adhered to the workpiece, the electric erosion product needs to be discharged in time, and influence on next electric erosion machining is avoided;
in addition, when precision electric corrosion is carried out, the precise gap between the tool electrode and the workpiece electrode needs to be controlled, and because the tool electrode and the workpiece electrode are both in working solution, workpieces made of different materials and workpieces at different temperatures have different expansion degrees, the gap between the tool electrode and the working electrode can be changed, and the electric corrosion treatment effect is influenced, so that during precision machining, the workpieces need to be kept at proper temperature, the expansion or contraction degrees of the workpieces are kept consistent, and the bad influence of the expansion and contraction of the workpieces on electric corrosion machining is avoided.
Disclosure of Invention
In order to solve the technical problem, the invention provides an electric spark machine tool for processing metal products, which comprises a tool body and a stand column, wherein the tool body is provided with a workbench, the stand column is provided with a main shaft head, the main shaft head and the workbench are correspondingly arranged, the main shaft head is provided with a tool electrode, and the main shaft head is used for controlling a discharge gap between a workpiece and the tool electrode;
the working table is provided with a water tank, the bottom of the water tank is provided with a clamp for clamping a workpiece, the water tank is connected with a working fluid circulating system, the working fluid circulating system is connected with a strong flushing mechanism, and the strong flushing mechanism is used for releasing high-pressure working fluid to a workpiece machining position to flush out an electric erosion product on the machining position.
By the technical scheme, the electrolytic corrosion products generated during electrolytic corrosion machining are flushed out, and the influence on next electrolytic corrosion machining is avoided.
Further: the strong punching mechanism comprises a liquid supply mechanism and a punching pipe, the liquid supply mechanism is used for supplying high-pressure working liquid to the punching pipe, the punching pipe is arranged on one side of the tool electrode and can synchronously lift along with the tool electrode, the punching pipe is connected with an A adjusting mechanism, and the A adjusting mechanism is used for adjusting the punching pipe to always point to the workpiece machining position along with the lifting of the tool electrode.
Through the technical scheme, when the electric erosion machining is realized, the flushing pipe can start to point to the workpiece machining position to release high-pressure working liquid, and an electric erosion product is discharged.
Further: the pipe body of the washing pipe is rotatably installed on one side of the working electrode through the hinged shaft, the hinged shaft is horizontally arranged, the washing pipe is obliquely arranged in a vertical shape, and the A adjusting mechanism is used for adjusting the processing position of the washing pipe, which is always directed to a workpiece when the washing pipe rotates around the hinged shaft to drive the washing pipe to ascend and descend along with the tool electrode.
Through the technical scheme, the purpose that the flushing pipe is adjusted to always point to the workpiece machining position through adjusting the rotation of the flushing pipe is achieved.
Further: the A adjusting mechanism comprises a worm wheel, a worm and a power assembly, the worm wheel is rotatably installed on the hinged shaft, the flushing pipe is fixedly installed on the worm wheel, the worm wheel drives the flushing pipe to synchronously rotate around the hinged shaft, the worm wheel is meshed with the worm, and the worm is connected with the power assembly.
Through above-mentioned technical scheme, realized adopting the function that the worm gear adjusted, the worm gear possesses self-locking function, can realize that the washing pipe is stable motionless when rotating a certain position, guarantees the directional accuracy nature of washing pipe.
Further: the liquid supply mechanism comprises a high-pressure liquid storage tank, a pressure pump and an electromagnetic valve A, the high-pressure liquid storage tank is connected with a working liquid circulating system, the working liquid circulating system is used for filling working liquid into the high-pressure liquid storage tank, the pressure pump is used for pressurizing the high-pressure liquid storage tank, the high-pressure liquid storage tank is connected with a flushing pipe through the electromagnetic valve A, the electromagnetic valve A is used for opening and closing the flushing pipe, the electromagnetic valve A is connected with a main control unit, and the main control unit is used for controlling the electromagnetic valve A to be.
Through the technical scheme, the function of providing the high-pressure working fluid into the flushing pipe is realized, the opening and closing of the flushing pipe are controlled, the flushing pipe is opened in the tool electrode electroerosion machining outage interval, the electroerosion product is discharged, and the problem that the electroerosion machining is influenced by the high-flow-rate working fluid caused by high pressure is solved.
Further: the working solution circulating system comprises a circulating pump, a liquid storage device and a filtering device, a water tank, the filtering device, the liquid storage device and the circulating water pump are sequentially connected through pipelines to form a circulating loop, and a temperature control mechanism is arranged in the liquid storage device and used for maintaining the temperature stability of the working solution.
Through above-mentioned technical scheme, realized that control working solution temperature is stable in the basin, realized that the work piece is in the middle of the stable temperature environment, keep the work piece can not add the inflation or shrink man-hour, add in addition that work piece processing position temperature can local rising, but this position can in time be cooled off to the working solution that flows in the basin, avoids this position to be heated the inflation.
Further: the liquid storage device comprises a cold liquid tank and a hot liquid tank, the filtering device is respectively connected with the cold liquid tank and the hot liquid tank through an A three-way valve, the cold liquid tank and the hot liquid tank are connected with a circulating pump through a B three-way valve, the temperature control mechanism comprises a temperature sensor, a cooling assembly, a heating assembly and a temperature control unit, the cooling assembly is arranged in the cold liquid tank, the heating assembly is arranged in the hot liquid tank, the temperature sensor is provided with a plurality of temperature sensors which are respectively arranged in the cold liquid tank, the hot liquid tank and a water tank, each temperature sensor, the A three-way valve, the B three-way valve and the heating assembly, the cooling assembly is connected with the temperature control unit, and the temperature control unit is used for controlling the A three-way valve according to preset standard temperature values and detection information of each temperature sensor, the B three-way.
Through the technical scheme, the temperature adjusting and controlling function of the working liquid is realized, and the purposes that the temperature in the water adjusting tank is consistent with the temperature values which are preset according to different material workpieces are realized.
Further: the cooling assembly comprises a heat conducting piece, the heat conducting piece is movably mounted in the cold liquid tank, the wall of the cold liquid tank is provided with an air vent communicated with the outside, the liquid level of working liquid in the cold liquid tank is lower than the height of the air vent, the heat conducting piece is connected with a B adjusting mechanism, and the B adjusting mechanism is used for adjusting the working liquid in the heat conducting piece to continuously enter and exit the cold liquid tank.
Through the technical scheme, when the heat conducting piece enters the working solution, the temperature in the working solution is conducted to the heat conducting piece, the heat conducting piece is separated from the working solution, the air vent and the outside are communicated, and the heat conducting piece gives off heat to the air to realize the cooling function.
Further: the B adjusting mechanism comprises a rotating shaft, the rotating shaft is horizontally arranged and is higher than the liquid level of the working liquid in the liquid cooling tank, the heat conducting piece is installed on the rotating shaft, and the rotating shaft is used for driving the heat conducting piece to rotate to enter and exit the working liquid.
Through the technical scheme, the heat conducting piece is driven to rotate, and the purpose that the heat conducting piece enters and exits the working liquid is achieved.
Further: the heat-conducting members are distributed in a circumferential array around the axis of the rotating shaft.
Through above-mentioned technical scheme, realized arranging of a plurality of heat-conducting members, effectual radiating efficiency that has promoted.
Further: the heat conducting piece is a spiral metal sheet, and the spiral axis of the heat conducting piece is consistent with the axis of the rotating shaft.
Through above-mentioned technical scheme, when having realized that the pivot rotates, the heat-conducting piece not only can mix the working solution for the working solution of upper and lower floor in the cold fluid reservoir mixes, makes the working solution temperature in the cold fluid reservoir unanimous, avoids the inconsistent problem of upper and lower floor's working solution temperature, and the air feed can also be mixed to the heat-conducting piece in addition, orders about the air flow, has promoted and has promoted the outside air circulation efficiency, promotes cooling efficiency.
Further: the vent holes are arranged at the positions of the tank walls of the cold liquid tanks corresponding to the two ends of the rotating shaft.
Through above-mentioned technical scheme, realized that the heat-conducting piece rotates, driven the air in the cold liquid jar and outside air constitution endless function.
Further: the edge of the heat conducting piece far away from the rotating shaft is provided with a curled part, and the curling direction of the curled part is consistent with the rotating direction of the rotating shaft.
Through above-mentioned technical scheme, realized after the heat-conducting piece rotates and breaks away from the working solution, can take a part with the working solution and come out, partly working solution can be taken to the air, and another part is along with the continuous rotation of heat-conducting piece, and this part working solution can flow on the heat-conducting piece side, realizes heat-conducting piece heat dissipation in the air, and the working solution that is taken out also can dispel the heat in the air, has further promoted the cooling effect.
The invention has the technical effects and advantages that: the electric erosion machine has the advantages of stable structure, reasonable layout and stable operation, can realize timely and rapid discharge of electric erosion products generated in the electric erosion machining process from the workpiece machining position and the electrode gap, keeps stable electric erosion machining, and avoids the electric erosion products from generating adverse effects on next electric erosion machining;
in addition, the invention can realize the circulating flow of the working solution and can maintain the working solution at the corresponding temperature according to different workpiece materials, so that the workpiece is at the proper temperature, the problem of poor processing quality caused by electrode gap change due to workpiece expansion or contraction is avoided, and the stable proceeding of the electroerosion precision processing is ensured.
Drawings
Fig. 1 is a schematic structural view of an electric discharge machine tool for machining a metal product according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a strong punching mechanism in an electric discharge machine for machining a metal product according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a liquid supply mechanism in an electric discharge machine for metal product machining according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a punch and a worm gear in an electric discharge machine for machining a metal product according to an embodiment of the present invention.
Fig. 5 is a schematic structural view showing the distribution of parts in a working fluid circulation system in an electric discharge machine for machining a metal product according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a coolant tank in an electric discharge machine tool for metal product machining according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a heat conductive member in an electric discharge machine for machining a metal product according to an embodiment of the present invention.
Fig. 8 is a schematic structural view illustrating an edge curl of a heat conductive member in an electric discharge machine for machining a metal product according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a working fluid circulation circuit in an electric discharge machine tool for metal product machining according to an embodiment of the present invention.
Description of reference numerals: 100-lathe bed, 110-workbench, 120-upright column, 130-spindle head, 140-water tank, 141-clamp, 150-tool electrode, 200-working fluid circulating system, 210-circulating pump, 220-filtering device, 230-liquid storage device, 231-hot liquid tank, 232-cold liquid tank, 232 a-vent hole, 232B-rotating shaft, 232C-heat conducting piece, 232C 1-curling part, 233-A three-way valve, 234-B three-way valve, 235-C three-way valve, 300-strong punching mechanism, 310-punching pipe, 320-hinged shaft, 330-worm wheel, 340-worm, 350-power component, 360-high-pressure liquid storage tank, 370-home liquid pump, 380-A electromagnetic valve and 400-control cabinet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
Referring to fig. 1 and 2, in the present embodiment, an electric discharge machine for machining a metal product is provided, including a machine bed 100 and a column 120, wherein the machine bed 100 is provided with a table 110, the column 120 is provided with a spindle head 130, the spindle head 130 and the table 110 are arranged correspondingly, the spindle head 130 is provided with a tool electrode 150, and the spindle head 150 is used for controlling a discharge gap between a workpiece and the tool electrode 150;
the workbench 110 is provided with a water tank 140, the bottom of the water tank 140 is provided with a clamp 141 for clamping a workpiece, the water tank 140 is connected with a working fluid circulating system 200, the working fluid circulating system 200 is connected with a strong flushing mechanism 300, and the strong flushing mechanism 300 is used for releasing high-pressure working fluid to a workpiece machining position to flush out an electric corrosion product on the machining position.
Referring to fig. 4, the strong punching mechanism 300 includes a liquid supply mechanism for supplying a high-pressure working liquid to the punching pipe 310, and the punching pipe 310 is installed at one side of the tool electrode 150, the punching pipe 310 can be lifted synchronously with the tool electrode 150, the punching pipe 310 is connected to an a adjustment mechanism for adjusting the punching pipe 310 to always point to a workpiece processing position as the tool electrode 150 is lifted.
Referring to fig. 4, the body of the washing pipe 310 is rotatably mounted on one side of the working electrode 150 through a hinge shaft 320, the hinge shaft 320 is horizontally arranged, the washing pipe 310 is obliquely arranged in a vertical shape, and the a adjusting mechanism is used for adjusting the washing pipe 310 to rotate around the hinge shaft 320 to drive the washing pipe 310 to always point to the processing position of the workpiece when the washing pipe 310 moves up and down along with the tool electrode 150.
Referring to fig. 4, the a adjustment mechanism includes a worm wheel 330, a worm 340 and a power assembly 350, the worm wheel 330 is rotatably mounted on the hinge shaft 320, the washpipe 310 is fixedly mounted on the worm wheel 330, the worm wheel 330 drives the washpipe 310 to synchronously rotate around the hinge shaft 320, the worm wheel 330 is engaged with the worm 340, and the worm 340 is connected with the power assembly 350.
Referring to fig. 3, the liquid supply mechanism includes a high-pressure liquid storage tank 360, a pressure pump 370 and an a solenoid valve 380, the high-pressure liquid storage tank 360 is connected to a working liquid circulation system 200, the working liquid circulation system 200 is used for filling working liquid into the high-pressure liquid storage tank 360, the pressure pump 370 is used for pressurizing the high-pressure liquid storage tank 360, the high-pressure liquid storage tank 360 is connected to the flushing pipe 310 through the a solenoid valve 380, the a solenoid valve 380 is used for opening and closing the flushing pipe 310, the a solenoid valve 380 is connected to a main control unit, and the main control unit is used for controlling the a solenoid valve 380 to be closed when the.
When the workpiece is electroerosion-processed, firstly the workpiece is fixed on the clamp 141 in the water tank 140, then the working fluid circulating system 200 system circulates the working fluid in the water tank 140, and simultaneously the working fluid is filled into the high-pressure liquid storage tank 360, the worktable 110 drives the longitudinal and transverse screw rods to change the relative positions of the workpiece and the tool electrode 150 through the servo mechanism, and drives the workpiece to move to the initial processing position on the worktable and the position corresponding to the tool electrode 150, and the spindle head 130 consists of a servo feeding mechanism, a guiding and anti-twisting mechanism and an auxiliary mechanism, and controls the discharge gap between the workpiece and the tool electrode 150.
When the machining positions of the workpieces are consistent in height, the height of the tool electrode 150 is unchanged, the workbench 110 drives the workpieces to move transversely and longitudinally, the machining positions are changed, before the tool electrode 150 is placed, the power assembly 350 drives the worm 340 to rotate, the power assembly 350 comprises an electrode and a speed reducing mechanism, the worm 340 drives the worm wheel 330 to rotate, the worm wheel 330 drives the punching pipe 310 to synchronously rotate around the hinge shaft 320, the punching pipe 310 rotates to the position pointing to the workpiece machining position and stops, self-locking is realized through the arrangement of the worm wheel 330 and the worm 340, the punching pipe 310 is ensured not to swing, and the punching pipe 310 can always point to the workpieces;
when the machining positions of the workpieces are not consistent in height, the main shaft head 130 needs to drive the tool anode 150 to lift, so that the discharge gaps of different machining positions are changed, the main shaft head 130 drives the flushing pipe 310 to lift synchronously, and the power assembly adjusts the corresponding rotation angle of the flushing pipe 310 according to the lifting distance of the tool anode 150 driven by the main shaft head 130, so that the purpose that the flushing pipe 310 always points to the machining positions of the workpieces is achieved.
The control cabinet 400 is arranged on one side of the lathe bed 100, the control unit is installed in the control cabinet 400, the tool electrode 150 is after the electroerosion machining is carried out on one position or at the interval of the electroerosion machining on the same position, the control unit controls the flushing pipe 310 to be opened through the A electromagnetic valve 380, the flushing pipe 310 releases high-pressure working fluid, high-speed working fluid flow can be provided for the machining position of the workpiece, the electroerosion products between the machining position of the workpiece and the electrode gap can be quickly flushed away, and even if the electroerosion products are adhered to the workpiece, the high-speed working fluid flow can also quickly flush away the electroerosion products.
Example 2
In the present embodiment, a method for maintaining sufficient working fluid and stable air pressure in the high pressure reservoir 360 is proposed: a liquid level sensor and a gas pressure sensor are arranged in the high-pressure liquid storage tank 360, a pressure regulating valve is also arranged on the high-pressure liquid storage tank 360, when the liquid level in the high-pressure liquid storage tank 360 is lower than a preset liquid level value, the liquid level sensor is triggered, the liquid level sensor is connected with the control unit, the control unit receives a signal of the liquid level sensor, controls the pressure regulating valve to release the pressure in the high-pressure liquid storage tank 360 and controls the C three-way valve 235 to fill working liquid into the high-pressure liquid storage tank 260, when the liquid level sensor detects a marked liquid level value, the control unit transmits a signal to the control unit, controls the C three-way valve 235 to be closed, stops filling the working liquid into the high-pressure liquid storage tank 360, simultaneously detects the gas pressure in the high-pressure liquid storage tank 360, controls the pressure pump 370 to, the stable air pressure and the sufficient working fluid in the high-pressure liquid storage tank 360 are maintained through the steps.
Example 3
Referring to fig. 3, in the present embodiment, a working fluid circulation system 200 is provided, where the working fluid circulation system 200 includes a circulation pump 210, a liquid storage device 230, and a filter device 220, a water tank 140, the filter device 220, the liquid storage device 230, and a circulation water pump 210 are sequentially connected through a pipeline to form a circulation loop, and a temperature control mechanism is installed in the liquid storage device 230 and is used to maintain a stable working fluid temperature.
Referring to fig. 6 and 9, the liquid storage device 230 includes a cold liquid tank 232 and a hot liquid tank 231, the filtering device 220 is respectively connected to the cold liquid tank 232 and the hot liquid tank 231 through an a three-way valve 233, the cold liquid tank 232 and the hot liquid tank 231 are connected to the circulating pump 210 through a B three-way valve 234, the temperature control mechanism includes a temperature sensor, a temperature reduction assembly, a heating assembly and a temperature control unit, the temperature reduction assembly is disposed in the cold liquid tank 232, the heating assembly is arranged in the hot liquid tank 231, the temperature sensors are provided with a plurality of temperature sensors which are respectively arranged in the cold liquid tank 232, the hot liquid tank 231 and the water tank 140, each temperature sensor, the A three-way valve 233, the B three-way valve 234, the heating assembly and the cooling assembly are all connected with the temperature control unit, and the temperature control unit is used for controlling the A three-way valve 233, the B three-way valve 234, the heating assembly and the cooling assembly to operate according to preset standard temperature values and detection information of each temperature sensor so as to adjust the temperature in the water tank 140 to be consistent with the preset standard temperature values.
Referring to fig. 7, the cooling assembly includes a heat conducting member 232c, the heat conducting member 232c is movably mounted in the cold liquid tank 232, a vent hole 232a communicating with the outside is formed in the wall of the cold liquid tank 232, the liquid level of the working liquid in the cold liquid tank 232 is lower than the height of the vent hole 232, the heat conducting member 232c is connected with a B adjusting mechanism, and the B adjusting mechanism is used for adjusting the working liquid in the cold liquid tank 232 into and out of the heat conducting member 232c continuously. When having realized getting into the working solution through heat-conducting piece 232c, temperature conduction in the working solution is to heat-conducting piece 232c on, and heat-conducting piece 232c breaks away from the working solution, and air vent 232a and external intercommunication, heat-conducting piece 232c distribute the heat to the air in, realize the function of cooling
Referring to fig. 7, the B adjusting mechanism includes a rotating shaft 232B, the rotating shaft 232B is horizontally disposed, the height of the rotating shaft 232B is higher than the liquid level of the working fluid in the cold fluid tank 232, the heat conducting member 232c is installed on the rotating shaft 232B, and the rotating shaft 232B is used for driving the heat conducting member 232c to rotate to enter and exit the working fluid.
Referring to fig. 7, the heat-conducting members 232c are arranged in a circumferential array around the axis of the rotary shaft 232 b. Realize the arrangement of a plurality of heat-conducting pieces 232c, effectively improve the heat dissipation efficiency
Referring to fig. 7, the heat-conducting member 232c is a spiral-shaped metal sheet, and the spiral axis of the heat-conducting member 232c coincides with the axis of the rotating shaft 232 b.
When having realized pivot 232b and having rotated, heat-conducting piece 232c not only can stir the working solution for the working solution of the upper and lower floor in the cold fluid reservoir 232 mixes, makes the working solution temperature in the cold fluid reservoir 232 unanimous, avoids the inconsistent problem of upper and lower floor's working solution temperature, and heat-conducting piece 232c can also stir the air feed in addition, orders about the air flow, has promoted and has promoted the outside air circulation efficiency, promotes cooling efficiency.
Referring to fig. 6, the vent holes 232a are opened at the positions of the walls of the cold liquid tank 232 corresponding to the two ends of the rotating shaft 232b, so that the heat conducting member 232c rotates to drive the air in the cold liquid tank 232 and the outside air to form a circulation.
Referring to fig. 8, the edge of the heat-conducting member 232c away from the rotating shaft 232b is provided with a curled portion 232c1, and the curling direction of the curled portion 232c1 coincides with the rotating direction of the rotating shaft 232 b.
After the heat conducting piece 232c rotates to be separated from the working liquid, a part of the working liquid can be brought out, a part of the working liquid can be brought into the air, the other part of the working liquid can continuously rotate along with the heat conducting piece 232c, the part of the working liquid crosses the highest point along with the rotation of the heat conducting piece 232c, and when the working liquid rotates towards the direction close to the liquid surface of the working liquid, the working liquid flows from the curling part 232c1 to the side surface of the heat conducting piece 232c and flows and scatters on the side surface of the heat conducting piece 232c under the action of gravity, so that the heat of the heat conducting piece 232c is dissipated in the air, the working liquid brought out can also dissipate the heat in the air, and the cooling effect is further improved.
Example 4
Referring to fig. 9, in the present embodiment, a method for maintaining the temperature of the working fluid in the water tank consistent with a preset temperature value is provided:
the temperature control unit is arranged in the control cabinet 400, firstly, according to the processed workpiece material, a corresponding preset labeled temperature value is selected from the control cabinet 400, the preset labeled temperature value is t0, the temperature sensor in the water tank 140 detects the temperature of the working fluid in the water tank 140, and the temperature of the working fluid in the water tank is t 1;
when t0 is greater than t1, the three-way valve 233 is controlled to open a pipeline leading to the hot liquid tank 231, the working liquid in the water tank 140 enters the hot liquid tank 231 through the filter device 220, the heating component in the hot liquid tank 231 is started to heat the working liquid, and the temperature of the working liquid in the hot liquid tank 231 is monitored by the temperature sensor in the hot liquid tank 231 at any time;
when t0 is t1, the temperature sensor in the hot liquid tank 231 detects the temperature of the working liquid in the hot liquid tank 231 at this time, the temperature is t2, the temperature control unit memorizes the temperature and turns off the heating element, when the temperature sensor in the hot liquid tank 231 detects that the temperature of the working liquid in the tank is less than t2, the heating element is started, and when the temperature value reaches t2, the heating element is turned off;
it should be noted that: the hot liquid tank 231 is a closed tank body, and the tank is wrapped with a heat insulation material.
When t0 is less than t1, the three-way valve 233 is controlled to open a pipeline leading to the cold liquid tank 232, the working liquid in the water tank 140 enters the cold liquid tank 232 through the filtering device 220, the cooling component in the cold liquid tank 232 is started, the rotating shaft 232b is connected with the power unit, the power unit drives the rotating shaft 232b to rotate to drive the heat conducting member 232c to rotate so as to realize the cooling function, the temperature sensor in the cold liquid tank 232 monitors the temperature in the tank at any time, when the temperature in the water tank 140 is reduced to t0 which is t1, the temperature monitored by the temperature sensor in the cold liquid tank 232 is t3, the temperature control unit memorizes the temperature, the temperature sensor in the cold liquid tank 232 monitors the temperature in the pipe at any time and transmits the temperature to the temperature control unit, the temperature control unit adjusts the rotating speed of the rotating shaft 232b according to the comparison between the real-time monitored temperature and t 35, when the real-time temperature is higher than t3, the rotating shaft 232b, the rotation of the adjustment rotary shaft 232b is more slowly rotated, and when the real-time temperature is consistent with the temperature t3, the rotation of the adjustment rotary shaft 232b is stopped.
The electric erosion machine has the advantages of stable structure, reasonable layout and stable operation, can realize timely and rapid discharge of electric erosion products generated in the electric erosion machining process from the workpiece machining position and the electrode gap, keeps stable electric erosion machining, and avoids the electric erosion products from generating adverse effects on next electric erosion machining;
in addition, the invention can realize the circulating flow of the working solution and can maintain the working solution at the corresponding temperature according to different workpiece materials, so that the workpiece is at the proper temperature, the problem of poor processing quality caused by electrode gap change due to workpiece expansion or contraction is avoided, and the stable proceeding of the electroerosion precision processing is ensured
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. An electric discharge machine for machining metal products, characterized in that: the device comprises a lathe bed (100) and a vertical column (120), wherein a workbench (110) is arranged on the lathe bed (100), a main shaft head (130) is arranged on the vertical column (120), the main shaft head (130) and the workbench (110) are correspondingly arranged, a tool electrode (150) is arranged on the main shaft head (130), and the main shaft head (150) is used for controlling a discharge gap between a workpiece and the tool electrode (150);
the working table (110) is provided with a water tank (140), the bottom of the water tank (140) is provided with a clamp (141) for clamping a workpiece, the water tank (140) is connected with a working liquid circulating system (200), the working liquid circulating system (200) is connected with a strong flushing mechanism (300), and the strong flushing mechanism (300) is used for releasing high-pressure working liquid to a workpiece machining position to flush out an electric corrosion product on the machining position.
2. An electric discharge machine for the machining of metal products according to claim 1, characterized in that: the strong punching mechanism (300) comprises a liquid supply mechanism and a punching pipe (310), the liquid supply mechanism is used for supplying high-pressure working liquid to the punching pipe (310), the punching pipe (310) is installed on one side of the tool electrode (150), the punching pipe (310) can synchronously lift along with the tool electrode (150), the punching pipe (310) is connected with an A adjusting mechanism, and the A adjusting mechanism is used for adjusting the punching pipe (310) to always point to the workpiece machining position along with the lifting of the tool electrode (150).
3. An electric discharge machine for the machining of metal products according to claim 2, characterized in that: the pipe body of the flushing pipe (310) is rotatably installed on one side of the working electrode (150) through a hinge shaft (320), the hinge shaft (320) is horizontally arranged, the flushing pipe (310) is obliquely arranged in a vertical shape, and an A adjusting mechanism is used for adjusting the flushing pipe (310) to rotate around the hinge shaft (320) to drive the flushing pipe (310) to always point to the processing position of a workpiece along with the lifting of the tool electrode (150).
4. An electric discharge machine for the machining of metal products according to claim 3, characterized in that: the adjusting mechanism A comprises a worm wheel (330), a worm (340) and a power assembly (350), the worm wheel (330) is rotatably installed on an articulated shaft (320), a flushing pipe (310) is fixedly installed on the worm wheel (330), the worm wheel (330) drives the flushing pipe (310) to synchronously rotate around the articulated shaft (320), the worm wheel (330) is meshed with the worm (340), and the worm (340) is connected with the power assembly (350).
5. An electric discharge machine for the machining of metal products according to claim 2, characterized in that: the liquid supply mechanism comprises a high-pressure liquid storage tank (360), a pressure pump (370) and an A solenoid valve (380), the high-pressure liquid storage tank (360) is connected with a working liquid circulating system (200), the working liquid circulating system (200) is used for filling working liquid into the high-pressure liquid storage tank (360), the pressure pump (370) pressurizes the high-pressure liquid storage tank (360), the high-pressure liquid storage tank (360) is connected with a flushing pipe (310) through the A solenoid valve (380), the A solenoid valve (380) is used for opening and closing the flushing pipe (310), the A solenoid valve (380) is connected with a main control unit, the main control unit is used for controlling the A solenoid valve (380) to be closed when the tool electrode (150) is electrified, and.
6. An electric discharge machine for the machining of metal products according to claim 1, characterized in that: the working fluid circulating system (200) comprises a circulating pump (210), a liquid storage device (230) and a filtering device (220), a water tank (140), the filtering device (220), the liquid storage device (230) and a circulating water pump (210) are sequentially connected through pipelines to form a circulating loop, and a temperature control mechanism is arranged in the liquid storage device (230) and used for maintaining the temperature stability of the working fluid.
7. An electric discharge machine for the machining of metal products according to claim 6, characterized in that: the liquid storage device (230) comprises a cold liquid tank (232) and a hot liquid tank (231), the filtering device (220) is respectively connected with the cold liquid tank (232) and the hot liquid tank (231) through an A three-way valve (233), the cold liquid tank (232) and the hot liquid tank (231) are connected with the circulating pump (210) through a B three-way valve (234), the temperature control mechanism comprises a temperature sensor, a cooling component, a heating component and a temperature control unit, the cooling component is arranged in the cold liquid tank (232), the heating component is arranged in the hot liquid tank (231), the temperature sensor is provided with a plurality of temperature sensors which are respectively arranged in the cold liquid tank (232), the hot liquid tank (231) and the water tank (140), each temperature sensor, the A three-way valve (233), the B three-way valve (234) and the heating component, the cooling component is connected with the temperature control unit, and the temperature control unit is used for controlling the A three-way valve (, The three-way valve (234), the heating assembly and the cooling assembly are operated to realize that the temperature in the water regulating tank (140) is consistent with the preset standard temperature value.
8. An electric discharge machine for the machining of metal products according to claim 7, characterized in that: the cooling assembly comprises a heat conducting piece (232c), the heat conducting piece (232c) is movably mounted in the cold liquid tank (232), the tank wall of the cold liquid tank (232) is provided with a vent hole (232a) communicated with the outside, the liquid level of working liquid in the cold liquid tank (232) is lower than the height of the vent hole (232), the heat conducting piece (232c) is connected with a B adjusting mechanism, and the B adjusting mechanism is used for adjusting the working liquid in the heat conducting piece (232c) to continuously enter and exit the cold liquid tank (232).
9. An electric discharge machine for the machining of metal products according to claim 8, characterized in that: b adjustment mechanism includes pivot (232B), and pivot (232B) level is arranged, and pivot (232B) height is higher than the liquid level height of working solution in cold liquid jar (232), and heat-conducting piece (232c) are installed on pivot (232B), and pivot (232B) are used for driving heat-conducting piece (232c) and rotate business turn over working solution.
10. An electric discharge machine for the machining of metal products according to claim 9, characterized in that: the heat-conducting members (232c) are distributed in a circumferential array around the axis of the rotating shaft (232 b).
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Application publication date: 20210309 Assignee: Pizhou Hongrui Technology Co.,Ltd. Assignor: JIANGSU DERICA CNC MACHINE TOOL CO.,LTD. Contract record no.: X2023980045195 Denomination of invention: An electric discharge machine tool for metal product processing Granted publication date: 20221213 License type: Common License Record date: 20231102 |
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