CN111113040A - Electric arc micro-explosion and cutting combined machining device and flushing control method thereof - Google Patents
Electric arc micro-explosion and cutting combined machining device and flushing control method thereof Download PDFInfo
- Publication number
- CN111113040A CN111113040A CN201911332845.XA CN201911332845A CN111113040A CN 111113040 A CN111113040 A CN 111113040A CN 201911332845 A CN201911332845 A CN 201911332845A CN 111113040 A CN111113040 A CN 111113040A
- Authority
- CN
- China
- Prior art keywords
- flushing
- channel
- explosion
- valve
- mode
- 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.)
- Granted
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 340
- 238000004880 explosion Methods 0.000 title claims abstract description 89
- 238000005520 cutting process Methods 0.000 title claims abstract description 73
- 238000010891 electric arc Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000003754 machining Methods 0.000 title claims description 112
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 156
- 230000001276 controlling effect Effects 0.000 claims description 15
- 238000005422 blasting Methods 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005406 washing Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 15
- 239000002245 particle Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 238000003801 milling Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a composite processing device of electric arc micro-explosion and cutting and a flushing control method thereof, wherein the flushing control method of the composite processing device of electric arc micro-explosion and cutting comprises the following steps: simultaneously carrying out an inner flushing mode and an outer flushing mode, carrying out the inner flushing mode, carrying out the outer flushing mode and/or stopping the flushing mode; the flushing control method comprises the following steps: acquiring a first flushing mode control instruction; and operating the flushing mode corresponding to the first flushing mode control instruction according to the first flushing mode control instruction. The technical scheme of the invention has the advantages of wide application range, good washing effect, stable working of the tool electrode and good processing quality.
Description
Technical Field
The invention relates to the field of electric arc micro-explosion and cutting combined machining, in particular to an electric arc micro-explosion and cutting combined machining device and a flushing control method thereof.
Background
One of the necessary conditions for realizing the electric arc micro-explosion processing is internal flushing, however, from the practical processing situation, due to the limitation of the sealing capability and the rotating speed of the internal flushing device, the flushing strength cannot meet the requirement of the electric arc micro-explosion processing on long-time stable operation. On one hand, because the gap between the tool electrode and the workpiece is too small, the inner flushing liquid is blocked, the arc breaking effect of the flushing liquid at the bottom and the side surface of the electrode is not ideal, and the processing efficiency is reduced; on the other hand, the micro-explosion effect generated after the arc column is extinguished throws the molten metal material away from the processing area, but the inner flushing liquid is blocked, so that the flushing liquid is insufficient, the flushing effect on the interpolar and the side surface of the tool electrode is not obvious, part of the molten metal can be adhered in the hot melting pit, the surface precision of the workpiece is reduced, the tool electrode can touch the cooling metal liquid drop protruding on the surface in the next servo motion, the arc micro-explosion processing short circuit is caused, and the processing process is interrupted. In addition, arc micro-explosion machining is generally used for a rough machining process of workpiece materials, a certain machining allowance is reserved for fine machining processes such as milling and grinding, and a composite machining mode is realized. In the finish machining stage, an external flushing liquid cooling cutter is required, but the existing electric arc micro-explosion machining tool does not have the function of switching an internal flushing liquid mode and an external flushing liquid mode. In summary, the existing solution of the arc micro-explosion machining cannot solve the problems of the current low machining efficiency, poor machining stability and short circuit risk of the electrode caused by insufficient internal solution strength, and is not suitable for the arc micro-explosion machining tool adopting a composite machining mode.
Disclosure of Invention
The invention provides a flushing control method of an electric arc micro-explosion and cutting combined machining device, aiming at improving the stability of electric arc micro-explosion and cutting combined machining, ensuring sufficient flushing performance and ensuring that the machining efficiency and the machining quality meet expectations.
In order to achieve the above object, the present invention provides a method for controlling flushing of a combined arc micro-blasting and cutting apparatus, wherein the combined arc micro-blasting and cutting apparatus comprises: simultaneously carrying out an inner flushing mode and an outer flushing mode, carrying out the inner flushing mode, carrying out the outer flushing mode and/or stopping the flushing mode;
the flushing control method comprises the following steps:
acquiring a first flushing mode control instruction;
and operating the flushing mode corresponding to the first flushing mode control instruction according to the first flushing mode control instruction.
Optionally, before the step of obtaining the first flushing mode control instruction, the flushing control method further includes the following steps:
acquiring a micro-explosion processing instruction;
and controlling the tool electrode to lower the cutter according to the micro-explosion machining starting instruction, acquiring a second flushing mode control instruction, and operating according to the second flushing mode instruction to simultaneously carry out the flushing modes of inner flushing and outer flushing.
Optionally, after the step of executing the flushing mode of the inner flushing and the outer flushing simultaneously according to the second flushing mode command, and before the step of obtaining the first flushing mode control command, the flushing control method further includes the following steps:
and detecting the movement speed of the tool electrode, selecting the first flushing mode control instruction as a control instruction of an inner flushing mode when the movement speed is less than 0.5mm/s, and selecting the first flushing mode control instruction as a control instruction of a flushing mode for simultaneously performing inner flushing and outer flushing when the movement speed is greater than or equal to 0.5 mm/s.
Optionally, after the step of operating the corresponding flushing mode in the flushing mode library according to the first flushing mode control instruction, the flushing control method further includes the following steps:
acquiring a micro-explosion machining finishing instruction, and operating a liquid flushing mode for stopping flushing liquid according to the micro-explosion machining finishing instruction;
and acquiring a finish machining instruction, and operating an external flushing mode according to the finish machining instruction.
In order to achieve the above object, the present invention further provides a combined machining apparatus for arc micro-explosion and cutting, comprising:
the inner flushing device is internally provided with an inner flushing channel;
the tool electrode is connected with the internal flushing device, is hollow and is communicated with the internal flushing channel;
an outer flushing nozzle; and the number of the first and second groups,
the control valve comprises a valve housing, a first channel communicated with the inner flushing channel and a second channel communicated with the outer flushing nozzle are arranged in the valve housing, the control valve further comprises a first valve arranged in the first channel and a second valve arranged in the second channel, the first valve and the second valve are respectively used for controlling the opening or closing of the first channel and the second channel, and the first channel and the second channel are used for being communicated with a flushing liquid supply unit.
Optionally, the valve housing further comprises a third channel communicated with the first channel and the second channel, and the third channel is used for communicating with the flushing liquid supply unit.
Optionally, the control valve is a solenoid valve; the electric arc micro-explosion and cutting combined machining device further comprises: a controller electrically connected with the first valve and the second valve.
Optionally, the electric arc micro-explosion and cutting combined machining device further includes:
the flushing liquid supply unit is communicated with the first channel and the second channel;
the flow regulating valve is arranged between the flushing liquid supply unit and the control valve and is electrically connected with the controller; and/or the presence of a catalyst in the reaction mixture,
and the pump is connected with the flushing liquid supply unit and used for driving flushing liquid to flow to the control valve, and the pump is electrically connected with the controller.
Optionally, a first liquid inlet hole communicated with the inner flushing channel is formed in the side surface of the inner flushing device, and the first channel is communicated with the first liquid inlet hole so as to be communicated with the inner flushing channel through the first liquid inlet hole.
Optionally, the electric arc micro-explosion and cutting combined machining device further comprises an outer barrel sleeved on the outer surface of the inner flushing device, the outer barrel covers the first liquid inlet hole, a channel communicated with the first liquid inlet hole is formed inside the outer barrel, a second liquid inlet hole communicated with the channel is formed in the outer surface of the outer barrel, and the first channel is communicated with the second liquid inlet hole so as to be communicated with the first liquid inlet hole through the second liquid inlet hole.
Optionally, the outer surface of the inner flushing device is provided with a plurality of first liquid inlet holes circumferentially arranged along the side surface of the inner flushing device at intervals, and the channel is communicated with the plurality of first liquid inlet holes.
Optionally, the valve housing has a plurality of first channels inside, the composite machining device for arc micro-explosion and cutting includes a main shaft connected to the internal flushing device and a flow switching valve connected to the main shaft, the flow switching valve is located between the internal flushing device and the control valve, and the flow switching valve has:
a plurality of third liquid inlet holes, wherein the third liquid inlet holes are communicated with the first channel;
the inner flushing liquid outlet is communicated with the third liquid inlet holes and communicated with the inner flushing liquid channel;
the fourth liquid inlet hole is communicated with the second channel; and the number of the first and second groups,
and the outer flushing liquid outlet is communicated with the fourth liquid inlet hole and the outer flushing liquid nozzle.
Optionally, the electric arc micro-explosion and cutting combined machining device further comprises a connecting pipe, one end of the connecting pipe is connected with the outer flushing nozzle, the other end of the connecting pipe is connected with the flow switching valve, and the connecting pipe is communicated with the outer flushing outlet and the outer flushing nozzle.
Optionally, the electric arc micro-explosion and cutting combined machining device further comprises a motor connected with the internal flushing device, and the control valve is connected with the motor.
The traditional control method for electric arc machining is single in flushing mode and cannot cope with complex working conditions, so that the machining quality is difficult to guarantee. Particularly, in the process of electric arc micro-explosion machining, the existing machining mode only has an internal flushing mode, and the flushing strength cannot meet the requirement of the electric arc micro-explosion machining on long-time stable work. The technical scheme of the invention has multiple flushing modes, and the inner flushing mode, the outer flushing mode and the inner flushing mode are matched at the same time, so that the device can deal with more working conditions, has the advantage of wide application range, is more favorable for improving the flushing effect of flushing liquid on corrosion-removal particles, ensures the processing efficiency and stability, avoids electrode short circuit and can improve the processing quality of workpieces.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a control method for numerical control arc machining according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the electric arc micro-blasting and cutting combined machining apparatus according to the present invention;
FIG. 3 is a cross-sectional view of the tool electrode and the outer cylinder of the combined arc micro-blasting and cutting apparatus of FIG. 2;
fig. 4 is a sectional view of a control valve of the combined machining apparatus for arc micro-explosion and cutting of fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | Internal flushing |
| 120 | First |
200 | External flushing |
| 300 | |
310 | Valve casing |
| 311 | |
312 | The |
| 313 | |
320 | |
| 330 | |
400 | |
| 500 | |
510 | |
| 520 | Second |
600 | |
| 700 | |
800 | |
| 900 | |
910 | First |
| 920 | |
930 | Internal flushing device |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three technical solutions, taking "A and/or B" as an example, including the A solution, or the B solution, or the solution that A and B satisfy simultaneously. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a liquid flushing control method of an electric arc micro-explosion and cutting combined machining device, which comprises the following steps: simultaneously carrying out an inner flushing mode and an outer flushing mode, carrying out the inner flushing mode, carrying out the outer flushing mode and stopping the flushing mode;
in the actual operation of arc machining, there are a number of operating conditions: the different material of the processed workpiece causes different speeds of the generation of the etched particles; because the structures needing to be processed on the workpiece are different, the positions where the etched particles are generated are different; due to different purposes of the workpiece, the quality requirements on the machined surface of the workpiece are different, and the flow field of the flushing liquid has influence on the electric arc, so that the machining quality of the surface of the workpiece is influenced. The traditional control method for electric arc machining is single in flushing mode and cannot cope with complex working conditions, so that the machining quality is difficult to guarantee. Particularly, in the process of electric arc micro-explosion machining, the existing machining mode only has an internal flushing mode, and the flushing strength cannot meet the requirement of the electric arc micro-explosion machining on long-time stable work. The technical scheme of the invention has multiple flushing modes, can cope with more working conditions, has the advantage of wide application range, is more favorable for improving the flushing effect of flushing liquid on erosion-removal particles, ensures the processing efficiency and stability, avoids electrode short circuit and can improve the processing quality of workpieces.
The method for controlling flushing of the arc micro-blasting and cutting hybrid machining apparatus according to the present embodiment is not limited to the above-described technical solution, and in other embodiments, the arc micro-blasting and cutting hybrid machining apparatus may include: simultaneously carrying out an inner flushing mode and an outer flushing mode, carrying out the inner flushing mode and carrying out the outer flushing mode; or, the electric arc micro-explosion and cutting combined machining device comprises: the flushing mode of the inner flushing and the outer flushing is carried out simultaneously, the flushing mode of the inner flushing is carried out, and the flushing mode of the stopping flushing is carried out.
As shown in fig. 1, the flushing control method includes the following steps:
in step S10, a first flushing mode control command is acquired.
Aiming at different working conditions, a first flushing mode control instruction for correspondingly solving the working conditions is selected, so that the method has the advantage of strong pertinence, and is favorable for ensuring the flushing effect of flushing liquid on the erosion removal particles.
And step S20, operating the flushing mode corresponding to the first flushing mode control instruction according to the first flushing mode control instruction.
And the first flushing control command selects a flushing mode corresponding to the first flushing control command from four flushing modes, and then the flushing mode is operated.
Further, in this embodiment, before the step S10 of obtaining the first flushing mode control instruction, the flushing control method further includes the following steps:
step S30, acquiring a micro-explosion processing instruction;
and step S40, controlling the tool electrode to be cut according to the micro-explosion processing starting instruction, acquiring a second flushing mode control instruction, and operating according to the second flushing mode instruction to simultaneously carry out the flushing modes of inner flushing and outer flushing.
In the micro-explosion machining mode, the free end of the tool electrode is inserted into a workpiece to be machined under the clamping of an electric arc, and a large amount of corrosion particles are generated on the inner side and the outer side of the tool electrode, so that a liquid flushing mode of inner flushing liquid and outer flushing liquid is required to be carried out simultaneously, the machining stability of the tool electrode is guaranteed, the surface of the workpiece to be machined can be protected from being ablated by the corrosion particles, and the surface quality of the workpiece to be machined is guaranteed.
Further, in this embodiment, the flushing control method further includes, after the flushing mode of simultaneously performing the inner flushing and the outer flushing according to the second flushing mode command operation in step S40 and before the acquiring of the first flushing mode control command in step S10, the steps of:
and step S50, detecting the movement speed of the tool electrode, selecting the first flushing mode control command as a control command of an inner flushing mode when the movement speed is less than 0.5mm/S, and selecting the first flushing mode control command as a control command of a flushing mode for simultaneously performing inner flushing and outer flushing when the movement speed is greater than or equal to 0.5 mm/S. When the movement speed of the tool electrode is less than 0.5mm/s, the speed of generating erosion particles is low, and the internal flushing mode is adopted for flushing, so that the stable work of the tool electrode can be guaranteed, and the energy consumption and the flushing loss can be reduced. When the movement speed of the tool electrode is more than or equal to 0.5mm/s, only the inner flushing liquid easily enables the etched particles to be incapable of being flushed away in time, so that the stable work of the tool electrode cannot be guaranteed.
Further, in this embodiment, after the step S20 executing the flushing mode corresponding to the first flushing mode control command according to the first flushing mode control command, the method further includes:
step S60, acquiring a micro-explosion machining finishing instruction, and operating a liquid flushing mode for stopping flushing liquid according to the micro-explosion machining finishing instruction; after the micro-explosion processing is finished, the flushing is stopped before the next working procedure is carried out, so that the energy consumption and the flushing loss can be reduced.
And step S70, obtaining a finish machining instruction, and operating an external flushing mode according to the finish machining instruction. The machining precision of the micro-explosion machining is not high, in order to improve the machining precision of the substitute machining part, after the micro-explosion machining is finished, the fine machining is carried out, after the fine machining is started, an external liquid flushing mode is started, and at the moment, stable work of the tool electrode can be guaranteed without internal liquid flushing.
The invention also provides a composite processing device for electric arc micro-explosion and cutting.
In an embodiment of the present invention, as shown in fig. 2 to 4, the arc micro-blasting and cutting composite processing apparatus includes: an inner flushing device 930 having an inner flushing passage 110 therein; a tool electrode connected to the inner flushing fluid passage 110, wherein the tool electrode is hollow and is communicated with the inner flushing fluid passage 110; an outer flushing nozzle 200; and a control valve 300 including a valve housing 310, the valve housing 310 having a first passage 311 communicating with the inner flushing passage 110 and a second passage 312 communicating with the outer flushing nozzle 200 therein, the control valve 300 further including a first valve 320 provided in the first passage 311, and a second valve 330 provided in the second passage 312, the first valve 320 and the second valve 330 being respectively for controlling opening or closing of the first passage 311 and the second passage 312, and the first passage 311 and the second passage 312 being for communicating with a flushing supply unit. The inner flushing fluid of the electric arc micro-explosion and cutting combined machining device of the embodiment flows from the first channel 311 of the control valve 300 to the inner flushing fluid channel 110 of the inner flushing fluid device 930; the outer flushing fluid of the arc micro-blasting and cutting combined machining apparatus flows from the second passage 312 of the control valve 300 to the outer flushing fluid nozzle 200.
The technical scheme of the invention adopts a control valve 300 to control the liquid flushing mode of the electric arc micro-explosion and cutting combined machining device: when the first valve 320 and the second valve 330 are both opened, the electric arc micro-explosion and cutting combined machining device enters a flushing mode for simultaneously performing external flushing and internal flushing; when the first valve 320 and the second valve 330 are both closed, the electric arc micro-explosion and cutting combined machining device enters a flushing mode of stopping flushing; when the first valve 320 is opened and the second valve 330 is closed, the electric arc micro-explosion and cutting combined machining device enters a flushing mode of only performing internal flushing; when the first valve 320 is closed and the second valve 330 is opened, the combined machining apparatus for arc micro-blasting and cutting enters a flushing mode in which only external flushing is performed. The electric arc micro-explosion and cutting combined machining device can select a flushing mode according to actual needs, so that flushing liquid can timely flush away corrosion-removal particles between the tool electrode 100 and a workpiece, and a continuous short circuit of the electric arc micro-explosion and cutting combined machining device is avoided; the influence of the flow fields of different flushing modes on the electric arc is different, so that the surface quality of the processed workpiece is different, the selection is performed according to actual needs, and the processing quality of the surface of the workpiece is favorably improved.
Further, the arc micro-explosion and cutting combined machining device of the present embodiment can control the flow rate of the internal flushing fluid in the first passage 311 by controlling the opening degree of the first valve 320, so as to control the flow rate of the internal flushing fluid in the internal flushing fluid passage 110; the arc micro-explosion and cutting combined machining device can control the flow rate of the external flushing liquid in the second channel 312 by controlling the opening degree of the second valve 330, thereby controlling the flow rate of the external flushing liquid in the external flushing nozzle 200; the control of the flow of the inner flushing liquid and the flow of the outer flushing liquid by the electric arc micro-explosion and cutting combined machining device is beneficial to adjusting the injection pressure of the inner flushing liquid and the outer flushing liquid, is beneficial to improving the machining quality and controlling the machining cost.
Further, in this embodiment, as shown in fig. 4, the valve housing 310 further includes a third passage 313 communicating with the first passage 311 and the second passage 312, and the third passage 313 is used for communicating with the flushing liquid supply unit. The flushing liquid in the flushing liquid supply unit flows from the third passage to the control valve 300 and is split in the control valve 300 such that a part of the flushing liquid flows out from the first passage 311 and another part of the flushing liquid flows out from the second passage 312. The flushing liquid supply unit can provide the inner flushing liquid and the outer flushing liquid only by connecting the control valve 300 through one main flow pipe, and the composite machining device has the advantage of simplifying the structure of the electric arc micro-explosion and cutting composite machining device.
The arc micro-explosion and cutting composite processing device in this embodiment is not limited to the above technical solution, and in other embodiments, the arc micro-explosion and cutting composite processing device further includes a first pipe and a second pipe connected to the control valve, one end of the first pipe is communicated with the first channel, and the other end of the first pipe is used for communicating with the flushing liquid supply unit, and one end of the second pipe is communicated with the second channel, and the other end of the second pipe is used for communicating with the flushing liquid supply unit.
Further, in the present embodiment, the control valve 300 is a solenoid valve; the electric arc micro-explosion and cutting combined machining device further comprises: a controller electrically connected to the first valve 320 and the second valve 330. The controller has the function of controlling the first valve 320 and the second valve 330 to open or close, thereby controlling the switching of four flushing modes of the electric arc micro-explosion and cutting combined machining device, and has the advantage of high automation degree.
The arc micro-explosion and cutting combined machining device is not limited to the above technical solution, and in other implementations, the first valve and the second valve of the control valve may be mechanical valves, the first valve includes a first valve body movably disposed in the first passage and a first handle connected to the valve body, and the first handle is movably disposed through the valve housing; the second valve comprises a second valve body movably arranged in the second channel and a second handle connected with the valve body, and the second handle movably penetrates through the valve shell; the worker can control the opening and closing of the first passage and the second passage through the first handle and the second handle, respectively.
Further, in this embodiment, the arc micro-explosion and cutting combined machining apparatus further includes: a flushing liquid supply unit which is communicated with the first channel 311 and the second channel 312; a flow regulating valve 400 disposed between the flushing liquid supply unit and the control valve 300, the flow regulating valve 400 being electrically connected to the controller; and a pump connected to the flushing liquid supply unit for driving the flushing liquid to flow to the control valve 300, and electrically connected to the controller. The controller can control the flow of the flushing liquid entering the control valve 300 through the flow regulating valve 400 and the pump, and adjust a proper flushing liquid pressure for the electric arc micro-explosion and cutting combined machining device, so that the flow field of the flushing liquid is controlled, and the electric arc machining quality of the surface of a workpiece is improved.
The present embodiment is not limited to the above technical solution, and in other embodiments, the arc micro-explosion and cutting combined machining apparatus further includes: the flushing liquid supply unit is communicated with the first channel and the second channel, and the flow regulating valve is arranged between the flushing liquid supply unit and the control valve and is electrically connected with the controller and adopts an external pump to provide flushing liquid driving force; or, the electric arc micro-explosion and cutting combined machining device further comprises: the flow control valve is arranged between the flushing liquid supply unit and the control valve, the flow control valve is electrically connected with the controller, the external flushing liquid supply unit and the external pump are adopted to provide flushing liquid and flushing liquid driving force, under the condition that the flushing liquid is liquid which is easy to obtain, the complete machine of the electric arc micro-explosion and cutting combined machining device is not provided with the flushing liquid supply unit and the pump, the external flushing liquid supply unit and the external pump are adopted, the use of customers is facilitated, the price of the complete machine is reduced, and the competitiveness of products is improved.
Further, in this embodiment, as shown in fig. 3, a first liquid inlet hole 120 communicating with the inner flushing channel 110 is disposed on a side surface of the inner flushing device 930, and the first channel 311 communicates with the first liquid inlet hole 120 to communicate with the inner flushing channel 110 through the first liquid inlet hole 120. The traditional electric arc micro-explosion and cutting combined machining device usually adopts the mode that a main shaft 700 is manufactured into a hollow shaft and then is communicated with a hollow tool electrode 100, has the defects of complex modification of the main shaft 700, difficulty in realization and poor universality, and is difficult to realize in electric arc discharge and high-speed milling combined machining. The first liquid inlet hole 120 is formed in the side surface of the internal flushing device 930, and the internal flushing liquid enters the internal flushing channel 110 from the first liquid inlet hole 120, so that the internal flushing device has the advantages of small processing difficulty and wide applicability.
Further, in this embodiment, as shown in fig. 2 and fig. 3, the arc micro-explosion and cutting composite processing apparatus further includes an outer barrel 500 sleeved on an outer surface of the inner flushing device 930, the outer barrel 500 covers the first liquid inlet hole 120, a channel 510 communicated with the first liquid inlet hole 120 is formed inside the outer barrel 500, a second liquid inlet hole 520 communicated with the channel 510 is formed on an outer surface of the outer barrel 500, and the first channel 311 is communicated with the second liquid inlet hole 520 to communicate with the first liquid inlet hole 120 through the second liquid inlet hole 520. In this embodiment, the internal flushing fluid enters the channel 510 from the control valve 300 through the second fluid inlet 520, then enters the internal flushing fluid passage 110 through the first fluid inlet 120, and is sprayed out of the internal flushing fluid passage 110 of the tool electrode 100. The outer cylinder 500 has the function of protecting the inner flushing device 930, and simultaneously avoids the direct connection of a pipeline on the inner flushing device 930, so that the influence of the shaking of the pipeline on the tool electrode 100 when the composite processing device for arc micro-explosion and cutting works can be reduced.
Further, in this embodiment, as shown in fig. 3, the outer surface of the inner flushing device 930 is provided with a plurality of the first liquid inlet holes 120 circumferentially spaced along the side surface of the inner flushing device 930, and the channel 510 is communicated with the plurality of the first liquid inlet holes 120. The plurality of first liquid inlet holes 120 circumferentially arranged at intervals in the inner flushing device 930 described in this embodiment enable a plurality of liquid inlet points of the inner flushing channel 110, which is beneficial to more uniform distribution of flushing pressure in the inner flushing channel 110, thereby improving stability of the inner flushing channel 110 when discharging liquid. In this embodiment, the channel 510 is communicated with the plurality of first liquid inlet holes 120, and the numerical control arc inner flushing device 930 is communicated with the outer cylinder 500 and the first passage 311 through a small number of pipes or a pipe, which has an advantage of simplifying the structure of the numerical control arc inner flushing device 930.
Further, in this embodiment, as shown in fig. 4, the valve housing 310 has a plurality of first passages 311 therein, the composite arc micro-explosion and cutting machining apparatus further includes a spindle 700 connected to the inner flushing device 930, and a flow switching valve 600 connected to the spindle 700, the flow switching valve 600 is located between the inner flushing device 930 and the control valve 300, and the flow switching valve 600 has: a plurality of third liquid inlet holes communicating with the first channel 311; an inner flushing liquid outlet which is communicated with the third liquid inlet holes and is communicated with the inner flushing liquid channel 110; a fourth liquid inlet hole communicated with the second channel 312; and the outer flushing liquid outlet is communicated with the fourth liquid inlet hole and the outer flushing liquid nozzle. The plurality of first channels 311 are beneficial to improving the flow of flushing liquid in the electric arc micro-explosion and cutting combined machining device. The inner flushing fluid in the first passage 311 is collected in the flow switching valve 600 and then discharged from the inner flushing fluid outlet, and then enters the channel 510, which is advantageous for reducing the number of pipes connecting the outer cylinder 500 and the control valve 300, thereby simplifying the electric arc micro-explosion and cutting combined machining device.
The arc micro-explosion and cutting combined machining device in this embodiment is not limited to the above technical solution, and in other embodiments, the valve housing may have a plurality of second channels therein, the arc micro-explosion and cutting combined machining device further includes a spindle connected to the tool electrode and a flow switching valve connected to the spindle, the flow switching valve is located between the tool electrode and the control valve, and the flow switching valve is provided with: the third liquid inlet hole is communicated with the first channel; the inner flushing liquid outlet is communicated with the third liquid inlet hole and communicated with the inner flushing liquid channel; a plurality of fourth liquid inlet holes, wherein the fourth liquid inlet holes are communicated with the second channel; and the outer flushing liquid outlet is communicated with the fourth liquid inlet holes and the outer flushing liquid nozzle.
Further, in this embodiment, as shown in fig. 2, the arc micro-explosion and cutting combined machining apparatus further includes a connection pipe 900, one end of the connection pipe 900 is connected to the outer flushing nozzle 200, the other end of the connection pipe 900 is connected to the flow switching valve 600, and the connection pipe 900 is communicated with the outer flushing outlet and the outer flushing nozzle 200. Outer flushing nozzle 200 by connecting pipe 900 is fixed flow switching valve 600, flow switching valve 600 with main shaft 700 is connected, is favorable to promoting outer flushing nozzle 200's stable effect reduces outer flushing nozzle 200 during operation receives the rocking that outer flushing reaction force takes place.
Further, in this embodiment, as shown in fig. 2, the connection pipe 900 includes: a first segment pipe 910 connected to the flow switching valve 600; nozzle adapter 920, with first section body 910 rotates to be connected, just nozzle adapter 920 with outer flushing nozzle 200 is connected. Outer flushing nozzle 200 can pass through nozzle adapter 920 rotates to the adjustment position is favorable to spouting outer flushing more accurately to predetermineeing the position, promotes the cooling and the clean effect of flushing. Nozzle adapter 920 with the lateral surface of first section body 910 is equipped with sealing hose, prevents connecting pipe 900 weeping.
Further, in this embodiment, as shown in fig. 2, the arc micro-explosion and cutting combined machining apparatus further includes a motor 800 connected to the tool electrode 100, and the control valve 300 is connected to the motor 800, so as to improve stability of the control valve 300. Further, the surface of the motor 800 is provided with a first insulating mounting block and a second insulating mounting block, the control valve 300 is connected to the first insulating mounting block, and the flow regulating valve 400 is connected to the second insulating mounting block, so that the flow regulating valve 400 and the control valve 300 move along with the motor 800, and the flow regulating valve 400 or the control valve 300 can be effectively prevented from being pulled during the movement of the motor 800, thereby generating faults, and being beneficial to the electric arc micro-explosion and cutting combined machining device to be more compact and stable.
Specifically, the arc micro-explosion and cutting combined processing device in this embodiment is a numerical control arc processing milling machine, but is not limited to the numerical control arc processing milling machine, and in other embodiments, the arc micro-explosion and cutting combined processing device may also be a numerical control arc processing grinding machine.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for controlling flushing of a combined machining device for arc micro-explosion and cutting is characterized in that the combined machining device for arc micro-explosion and cutting comprises the following steps: simultaneously carrying out an inner flushing mode and an outer flushing mode, carrying out the inner flushing mode, carrying out the outer flushing mode and/or stopping the flushing mode;
the flushing control method comprises the following steps:
acquiring a first flushing mode control instruction;
and operating the flushing mode corresponding to the first flushing mode control instruction according to the first flushing mode control instruction.
2. The flush control method according to claim 1, further comprising, before the step of obtaining the first flush mode control command, the steps of:
acquiring a micro-explosion processing instruction;
and controlling the tool electrode to lower the cutter according to the micro-explosion machining starting instruction, acquiring a second flushing mode control instruction, and operating according to the second flushing mode instruction to simultaneously carry out the flushing modes of inner flushing and outer flushing.
3. The flush control method according to claim 2, further comprising, after the step of operating the flush mode for simultaneously performing the inner flush and the outer flush in accordance with the second flush mode command, and before the step of acquiring the first flush mode control command, the steps of:
and detecting the movement speed of the tool electrode, selecting the first flushing mode control instruction as a control instruction of an inner flushing mode when the movement speed is less than 0.5mm/s, and selecting the first flushing mode control instruction as a control instruction of a flushing mode for simultaneously performing inner flushing and outer flushing when the movement speed is greater than or equal to 0.5 mm/s.
4. The flush control method according to claim 2, further comprising, after the step of operating the flush mode corresponding to the first flush mode control command in the flush mode library, the step of:
acquiring a micro-explosion machining finishing instruction, and operating a liquid flushing mode for stopping flushing liquid according to the micro-explosion machining finishing instruction;
and acquiring a finish machining instruction, and operating an external flushing mode according to the finish machining instruction.
5. The utility model provides an electric arc micro-explosion and compound processingequipment of cutting which characterized in that includes:
the inner flushing device is internally provided with an inner flushing channel;
the tool electrode is connected with the internal flushing device, is hollow and is communicated with the internal flushing channel;
an outer flushing nozzle; and the number of the first and second groups,
the control valve comprises a valve housing, a first channel communicated with the inner flushing channel and a second channel communicated with the outer flushing nozzle are arranged in the valve housing, the control valve further comprises a first valve arranged in the first channel and a second valve arranged in the second channel, the first valve and the second valve are respectively used for controlling the opening or closing of the first channel and the second channel, and the first channel and the second channel are used for being communicated with a flushing liquid supply unit.
6. The arc micro-blasting and cutting composite machining device according to claim 5, wherein the valve housing further comprises a third passage communicating with the first passage and the second passage, the third passage being used for communicating with the flushing liquid supply unit.
7. The arc micro-blasting and cutting combined machining device according to claim 5, wherein the control valve is an electromagnetic valve; the electric arc micro-explosion and cutting combined machining device further comprises: a controller electrically connected to the first valve and the second valve;
the electric arc micro-explosion and cutting combined machining device further comprises:
the flushing liquid supply unit is communicated with the first channel and the second channel;
the flow regulating valve is arranged between the flushing liquid supply unit and the control valve and is electrically connected with the controller; and/or the presence of a catalyst in the reaction mixture,
and the pump is connected with the flushing liquid supply unit and used for driving flushing liquid to flow to the control valve, and the pump is electrically connected with the controller.
8. The arc micro-blasting and cutting composite processing device according to claim 5, wherein a first liquid inlet hole communicated with the inner flushing liquid channel is formed in a side surface of the inner flushing liquid device, and the first channel is communicated with the first liquid inlet hole to communicate with the inner flushing liquid channel through the first liquid inlet hole.
9. The composite processing apparatus for electric arc micro-explosion and cutting as claimed in claim 8, further comprising an outer cylinder sleeved on an outer surface of the inner flushing device, wherein the outer cylinder covers the first liquid inlet hole, and a channel communicated with the first liquid inlet hole is formed inside the outer cylinder, a second liquid inlet hole communicated with the channel is formed on an outer surface of the outer cylinder, the first channel is communicated with the second liquid inlet hole to communicate with the first liquid inlet hole through the second liquid inlet hole, the outer surface of the inner flushing device has a plurality of the first liquid inlet holes circumferentially spaced along a side surface of the inner flushing device, and the channel is communicated with a plurality of the first liquid inlet holes.
10. The hybrid arc micro-explosion and cutting machining device according to any one of claims 5 to 9, wherein the valve housing has a plurality of the first passages inside, the hybrid arc micro-explosion and cutting machining device further comprises a main shaft connected to the internal flushing device and a flow switching valve connected to the main shaft, the flow switching valve being located between the internal flushing device and the control valve, the flow switching valve having inside thereof:
a plurality of third liquid inlet holes, wherein the third liquid inlet holes are communicated with the first channel;
the inner flushing liquid outlet is communicated with the third liquid inlet holes and communicated with the inner flushing liquid channel;
the fourth liquid inlet hole is communicated with the second channel; and the number of the first and second groups,
and the outer flushing liquid outlet is communicated with the fourth liquid inlet hole and the outer flushing liquid nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332845.XA CN111113040B (en) | 2019-12-20 | Electric arc micro-explosion and cutting combined machining device and flushing control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332845.XA CN111113040B (en) | 2019-12-20 | Electric arc micro-explosion and cutting combined machining device and flushing control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111113040A true CN111113040A (en) | 2020-05-08 |
| CN111113040B CN111113040B (en) | 2024-08-02 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245891A (en) * | 2021-05-11 | 2021-08-13 | 广东长盈精密技术有限公司 | Chip breaking device and processing equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173337A1 (en) * | 2002-03-14 | 2003-09-18 | Tetsuro Ito | Electric sparking drill and method for forming a hole with an electric spark |
| CN102990172A (en) * | 2012-12-11 | 2013-03-27 | 中国石油大学(华东) | Flushing system for high-speed arc discharge milling |
| CN103008802A (en) * | 2012-12-11 | 2013-04-03 | 中国石油大学(华东) | High-instantaneous-energy-density electric spark high-speed milling method |
| CN104972183A (en) * | 2014-04-10 | 2015-10-14 | 周志芹 | Robot efficient and flexible electrical discharge machining method |
| CN106216807A (en) * | 2016-08-31 | 2016-12-14 | 新疆大学 | Liquid modular appliance is rushed inside and outside short electric arc NC milling machine |
| CN108526626A (en) * | 2018-06-22 | 2018-09-14 | 深圳航天科创实业有限公司 | Fliud flushing handle device in a kind of rotation for arc discharge explosion ablation milling |
| CN108655519A (en) * | 2018-05-21 | 2018-10-16 | 上海交通大学 | Arc discharge processes fliud flushing regional control system |
| CN110238466A (en) * | 2019-06-28 | 2019-09-17 | 深圳创源航天科技有限公司 | Fliud flushing device and process equipment inside and outside electric arc microexplosion |
| CN211332136U (en) * | 2019-12-20 | 2020-08-25 | 深圳创源航天科技有限公司 | Electric arc micro-explosion and cutting combined machining device |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173337A1 (en) * | 2002-03-14 | 2003-09-18 | Tetsuro Ito | Electric sparking drill and method for forming a hole with an electric spark |
| CN102990172A (en) * | 2012-12-11 | 2013-03-27 | 中国石油大学(华东) | Flushing system for high-speed arc discharge milling |
| CN103008802A (en) * | 2012-12-11 | 2013-04-03 | 中国石油大学(华东) | High-instantaneous-energy-density electric spark high-speed milling method |
| CN104972183A (en) * | 2014-04-10 | 2015-10-14 | 周志芹 | Robot efficient and flexible electrical discharge machining method |
| CN106216807A (en) * | 2016-08-31 | 2016-12-14 | 新疆大学 | Liquid modular appliance is rushed inside and outside short electric arc NC milling machine |
| CN108655519A (en) * | 2018-05-21 | 2018-10-16 | 上海交通大学 | Arc discharge processes fliud flushing regional control system |
| CN108526626A (en) * | 2018-06-22 | 2018-09-14 | 深圳航天科创实业有限公司 | Fliud flushing handle device in a kind of rotation for arc discharge explosion ablation milling |
| CN110238466A (en) * | 2019-06-28 | 2019-09-17 | 深圳创源航天科技有限公司 | Fliud flushing device and process equipment inside and outside electric arc microexplosion |
| CN211332136U (en) * | 2019-12-20 | 2020-08-25 | 深圳创源航天科技有限公司 | Electric arc micro-explosion and cutting combined machining device |
Non-Patent Citations (1)
| Title |
|---|
| 何国健等: "《三元流叶轮的电弧铣削与机械铣削组合加工》", 《航空制造技术》, vol. 62, no. 11, 1 June 2019 (2019-06-01), pages 39 - 46 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245891A (en) * | 2021-05-11 | 2021-08-13 | 广东长盈精密技术有限公司 | Chip breaking device and processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7771145B2 (en) | Method and apparatus for machining deep hole | |
| US7394040B2 (en) | Electromachining process and apparatus | |
| EP0988926A2 (en) | A machining method | |
| US8471167B2 (en) | Rough machining electroerosion method for machining a channel in a workpiece | |
| Kumar et al. | Current research trends in wire electrical discharge machining: an overview | |
| Baldin et al. | Machining of Inconel 718 with a defined geometry tool or by electrical discharge machining | |
| CN201565617U (en) | Tool for scraping counterbores reversely on numerical control machine | |
| JP2008155324A (en) | Machine tool | |
| CN111113040A (en) | Electric arc micro-explosion and cutting combined machining device and flushing control method thereof | |
| CN211332136U (en) | Electric arc micro-explosion and cutting combined machining device | |
| CN111113040B (en) | Electric arc micro-explosion and cutting combined machining device and flushing control method thereof | |
| Moulton | Wire EDM the fundamentals | |
| JP3815328B2 (en) | Wire electrical discharge machine | |
| CN111451518A (en) | Electric arc micro-explosion metal powder preparation device and control method thereof | |
| Tang et al. | Research on the combined electrochemical machining and electrical discharge machining technology for closed integer impeller | |
| JP2016005861A (en) | Machining system and tool holding apparatus of machining system | |
| CN109794792B (en) | Tool changing method of numerical control machining center | |
| JP5401223B2 (en) | Deep hole machining method and deep hole machining apparatus | |
| JP6181709B2 (en) | Machine tool controller | |
| JP2008062328A (en) | Compound machining apparatus capable of performing water jet machining and wire electric discharge machining | |
| CN105798407A (en) | Wire-electrode cutting machine tool spray nozzle for a plurality of media | |
| JP2003089036A (en) | Mist generation system, mist mixing device, mist distribution device, and numerical control machine tool for semi-dry process | |
| JPH11333662A (en) | Feeding method for coolant changed into mist | |
| WO2004030866A1 (en) | Grinding liquid feeding method and grinding device | |
| CN114799984B (en) | Method for cleaning tool |
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 | ||
| GR01 | Patent grant |