CN203791770U - Micro jet flow electrode electric discharge machining device - Google Patents
Micro jet flow electrode electric discharge machining device Download PDFInfo
- Publication number
- CN203791770U CN203791770U CN201420229983.1U CN201420229983U CN203791770U CN 203791770 U CN203791770 U CN 203791770U CN 201420229983 U CN201420229983 U CN 201420229983U CN 203791770 U CN203791770 U CN 203791770U
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- axis drive
- drive motors
- metal needle
- pulse signal
- signal generator
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model discloses a micro jet flow electrode electric discharge machining device and relates to electric discharge machining equipment. The positive electrode of a pulse signal generator is connected with a workpiece, the negative electrode of the pulse signal generator is connected with a metal needle, a solution injection syringe is fixed to an injection pump, the metal needle is connected with the injection syringe, the metal needle is vertically fixed to a feeding adjusting device through a clamping device, the feeding adjusting device is provided with a screw rod and a slide block, the screw rod is connected with an output shaft through a Z-axis drive motor, the slide block is in threaded fit with the screw rod, the detection end of a discharge state detection device is connected with the metal needle and the workpiece to be machined, the signal output end of the discharge state detection device is connected with a controller, the feeding adjusting device is fixed to a base, an X-Y movement platform is fixed to the base and used for clamping the workpiece to be machined, an output shaft of an X-axis drive motor is connected with the X-Y movement platform in the X-axis direction, an output shaft of a Y-axis drive motor is connected with the X-Y movement platform in the Y-axis direction, and the output end of the controller is electrically connected with the Z-axis drive motor, the X-axis drive motor and the Y-axis drive motor.
Description
Technical field
The utility model relates to spark erosion equipment, especially relates to a kind of fine jet electrode electric discharge machining apparatus.
Technical background
Along with the development of modern science and technology, there is explosive growth in the micro-electro-mechanical systems large area flexible thin-film device demand of unifying.In micro-processing, make fine pattern and generally adopt photoetching process, electron beam process and fine electric spark processing etc., but for only needing the bench-scale testing research of simple pattern (as rectangle or straight line), photoetching process needs mask plate, photoresist, exposure machine etc., electron beam needs vacuum environment, very consuming time, and cost is high.Fine electric spark processing macroscopic view stressed little, environmental requirement is not high, but it exists, microelectrode processing is consuming time, electrode is difficult to reach micro-nano rank and galvanic corrosion causes the problems such as electrode diameter variable effect machining accuracy.Chinese patent CN1290583 discloses a kind of electric discharging machining electrode compensation method based on Numeric Control Technology, the method is first to utilize the numerical control cutter rail of existing CAD/CAM Software Create machined electrode, then according to the mode of shaking and the shaking quantity of electrode in Electric Discharge Machining, adopt corresponding algorithm to compensate numerical control cutter rail, have and implement simple and reliable feature, but still have the problems such as the difficult processing of electrode, cost costliness.Document (T.Masuzwa, M.Fujino, K.Kobayashi.Wire Electro-Discharge Grinding for Micro-Maching.Annals of the CIRP.1985,43 (1): 431-434) reported that Tokyo Univ Japan's production technology research increases the grand people of waiting so long in pool and succeeds in developing line electrode electric spark grinding (WEDG) technology.This technology has successfully solved the problem of Microelectrode Fabrication difficulty in fine electric spark processing, but this technology still exists the shortcomings such as working (machining) efficiency is low, equipment is complicated, cost is expensive.Therefore seek a kind of new low cost, technology is simple and make the little micro-processing technology of live width is pursuing a goal of micro-nano area research personnel.
Summary of the invention
The purpose of this utility model is to overcome in prior art that the difficult processing of electrode in fine electric spark processing, electrode material galvanic corrosion loss are fast, working image size is greater than the shortcomings such as metal machined electrode, provides and has low cost, technology is simple and makes the little a kind of fine jet electrode electric discharge machining apparatus of live width.
The utility model is provided with pulse signal generator, metal needle, solution injector, syringe pump, flexible conduit, Z axis drive motors, feeding adjusting device, clamping device, appliance stand, base, discharge condition detection apparatus, X-Y motion platform, X-axis drive motors, Y-axis drive motors and controller;
Described pulse signal generator is anodal to be connected with workpiece to be processed, and pulse signal generator negative pole and metal needle join and ground connection; Solution injector is fixed on syringe pump; Metal needle is connected with syringe by flexible conduit, and metal needle is vertically fixed on feeding adjusting device by clamping device; Feeding adjusting device is provided with screw mandrel and slide block, and screw mandrel is connected with Z axis drive motors output shaft, and slide block coordinates with wire rod thread, and the test side of discharge condition detection apparatus is connected with workpiece to be processed with metal needle; Signal output part and the controller of discharge condition detection apparatus join, and feeding adjusting device is fixed on base by appliance stand; X-Y motion platform is fixed on base, X-Y motion platform is for workpiece to be processed clamping, X-axis drive motors output shaft is connected with X-Y motion platform X-direction, the output shaft of Y-axis drive motors is connected with X-Y motion platform Y direction, and controller output end is electrically connected to Z axis drive motors, X-axis drive motors and Y-axis drive motors respectively.
The pulse signal generator that the pulse signal voltage that described pulse signal generator employing is sent is 0.5～5kV.
Compared with the prior art, the beneficial effects of the utility model are as follows:
When device is started working, first open pulse signal generator and syringe pump power supply, guarantee that the solution in solution injector can at the uniform velocity be extruded from metal needle; Then open discharge condition detection apparatus and feeding adjusting device, control needle point to the spacing on processing work surface meets predetermined value; Because solution and pulse power negative pole join, workpiece and positive pole join, therefore solution stretches under the effect of electric field, form fine jet.When the distance between needle point and work surface is enough near, microjet is vertical state, and this vertical microjet is used as to machined electrode.Under highfield effect, the negative electrical charge gathering in jet punctures the air dielectric between gap with the positive charge gathering on the thin conductive layer of workpiece to be processed surface, forms discharge channel.After discharge channel forms, the high-energy of discharge generation is concentrated and is acted in the discharge column region on anode and cathode surface, because the cross section of discharge column is narrower, heat flow density is very big, both positive and negative polarity produces TRANSIENT HIGH TEMPERATURE, thereby make electrode material and surface of the work be subject to galvanic corrosion, and under shock wave, discharging explosion and extraneous effect of blowing, chip is dished out; Under the cyclical signal providing at pulse signal power supply and the reciprocating of feed arrangement, the periodic galvanic corrosion surface of the work of working electrode; Finally, the X-Y movement locus program setting is in advance transferred to X-Y motion platform by computer control, controls workpiece orbiting motion as required, thereby realize the making of surface of the work fine pattern.The utility model compare with current Micro-edm Equipments have electrode without processing and fabricating, processed pattern line-width is little and easily control and the advantage such as processing cost is low.The utility model is to take electric liquid to drive the Micro-edm Equipments that jet is electrode, can be used for the fine pattern manufacture craft of MEMS or large area flexible plastic film etc.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
The specific embodiment
Referring to Fig. 1, the present embodiment is provided with pulse signal generator 1, syringe pump 2, solution injector 3, flexible conduit 4, drive motors 5, feeding adjusting device (comprising screw mandrel 61 and slide block 62), clamping device 7, appliance stand 8, base 9, X-Y motion platform 10, metal needle 12, discharge condition detection apparatus 13, X-axis drive motors 15, Y-axis drive motors 16 and computer control 14.
Pulse signal generator 1 is anodal to join with workpiece to be processed P, and negative pole and metal needle 12 join, and ground connection; The described solution injector 3 that high polymer solution is housed is fixed on syringe pump 2; Described metal needle 12 joins through flexible conduit 4 and syringe 3, can control the speed that solution ejects from syringe needle by the flow of syringe pump is set; The shoulder hole of described metal needle 12 front end in clamping device 7 carries out spacing in the axial direction, and by screwing flat head screw and preloading spring is fixed, clamping device 7 is fixed on the slide block 62 of feeding adjusting device vertically.Feeding adjusting device is fixed on base 9 by appliance stand 8.The screw mandrel 61 of described Z axis drive motors 5 output shafts and feeding adjusting device joins.Discharge condition detection apparatus 13 test sides are connected with workpiece to be processed P with metal needle 12, for detection of the discharge condition between metal needle point and workpiece to be processed P, discharge condition detection apparatus 13 outputs and controller join, after controller collection, the detected signal of processing discharge condition detection apparatus, control the drive motors 5 joining with Z axis, for controlling the needle point of metal needle 12 and the distance between workpiece to be processed P.X-Y motion platform 10 is fixed on base 9.Band processing work P clamping is on X-Y motion platform 10, and X-axis drive motors 15 output shafts are connected in X-direction with X-Y motion platform 10.Y-axis drive motors 16 output shafts are connected in Y direction with X-Y motion platform 10.Controller 14 outputs are electrically connected to Z axis drive motors 5, X-axis drive motors 15 and Y-axis drive motors 16 respectively.The pulse signal voltage that described pulse signal generator 1 sends can be 4kV.
During described fine jet electrode electric discharge machining apparatus work, start discharge condition detection apparatus 13 and pulse signal generator 1, open syringe pump 2 simultaneously and carry out feed flow.Start the Z axis drive motors 5 of controlling feeding adjusting device, drive metal needle point 12 to arrive apart from workpiece to be processed 3mm place, then the voltage of regulating impulse signal generator 1 increases to 3kV gradually, thereby the discharge scenario in this process between the continuous detector gap of discharge condition detection apparatus 13 also feeds back to controller 14 control drive motors 5, to control feeding adjusting device, regulates discharging gap to make it to meet electric discharge requirement.Meanwhile, the high polymer solution that syringe pump 2 is propelled out stretches and forms fine jet under the effect of high voltage electric field, and the air dielectric between gap is punctured, and forms discharge channel, emits large calorimetric in order to galvanic corrosion workpiece to be processed P simultaneously.Finally, by controller 14, control each drive motors, reach and control workpiece to be processed P motion, realize the technique of carrying out fine pattern making at surface of the work.
Claims (2)
1. a fine jet electrode electric discharge machining apparatus, it is characterized in that, be provided with pulse signal generator, metal needle, solution injector, syringe pump, flexible conduit, Z axis drive motors, feeding adjusting device, clamping device, appliance stand, base, discharge condition detection apparatus, X-Y motion platform, X-axis drive motors, Y-axis drive motors and controller;
Pulse signal generator is anodal to be connected with workpiece to be processed, and pulse signal generator negative pole and metal needle join and ground connection; Solution injector is fixed on syringe pump; Metal needle is connected with syringe by flexible conduit, and metal needle is vertically fixed on feeding adjusting device by clamping device; Feeding adjusting device is provided with screw mandrel and slide block, and screw mandrel is connected with Z axis drive motors output shaft, and slide block coordinates with wire rod thread, and the test side of discharge condition detection apparatus is connected with workpiece to be processed with metal needle; The output of discharge condition detection apparatus is connected with controller, and feeding adjusting device is fixed on base by appliance stand; X-Y motion platform is fixed on base, X-Y motion platform is for workpiece to be processed clamping, X-axis drive motors output shaft is connected with X-Y motion platform X-direction, the output shaft of Y-axis drive motors is connected with X-Y motion platform Y direction, and controller output end is electrically connected to Z axis drive motors, X-axis drive motors and Y-axis drive motors respectively.
2. a kind of fine jet electrode electric discharge machining apparatus as claimed in claim 1, is characterized in that, described pulse signal generator adopts the pulse signal generator that the pulse signal voltage that sends is 0.5～5kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229983.1U CN203791770U (en) | 2014-05-07 | 2014-05-07 | Micro jet flow electrode electric discharge machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229983.1U CN203791770U (en) | 2014-05-07 | 2014-05-07 | Micro jet flow electrode electric discharge machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791770U true CN203791770U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229983.1U Withdrawn - After Issue CN203791770U (en) | 2014-05-07 | 2014-05-07 | Micro jet flow electrode electric discharge machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962658A (en) * | 2014-05-07 | 2014-08-06 | 厦门大学 | Micro jet flow electrode electrosparking device |
| CN104925746A (en) * | 2015-05-06 | 2015-09-23 | 厦门大学 | Non-contact glass micro-nano structure processing method |
-
2014
- 2014-05-07 CN CN201420229983.1U patent/CN203791770U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962658A (en) * | 2014-05-07 | 2014-08-06 | 厦门大学 | Micro jet flow electrode electrosparking device |
| CN104925746A (en) * | 2015-05-06 | 2015-09-23 | 厦门大学 | Non-contact glass micro-nano structure processing method |
| CN104925746B (en) * | 2015-05-06 | 2017-01-18 | 厦门大学 | Non-contact glass micro-nano structure processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |