CN102528191B - Simple, three-dimensional and adjustable electrode shaking mechanism for processing inverted cone of precise electric spark micro hole - Google Patents
Simple, three-dimensional and adjustable electrode shaking mechanism for processing inverted cone of precise electric spark micro hole Download PDFInfo
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- CN102528191B CN102528191B CN201110445317.2A CN201110445317A CN102528191B CN 102528191 B CN102528191 B CN 102528191B CN 201110445317 A CN201110445317 A CN 201110445317A CN 102528191 B CN102528191 B CN 102528191B
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- slide rail
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- dovetail slide
- electric spark
- rocking bar
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Abstract
The invention discloses a simple, three-dimensional and adjustable electrode shaking mechanism for processing an inverted cone of a precise electric spark micro hole, comprising a rotating shaft supplying rotation power, wherein a dovetail groove is arranged at the bottom end of the rotating shaft; a dovetail slide rail is installed inside the dovetail groove; an eccentric regulating device is installed at one end of the dovetail slide rail to regulate the position of the dovetail slide rail relative to the center in the dovetail groove; a shaking rod is connected with the bottom of the dovetail slide rail, and the other end of the shaking rod adopts a spherical hinging structure; a wire feeding pipe for the penetration of an electrode wire is arranged at the center of the electrode shaking mechanism; the wire feeding pipe does not rotate along with the rotating shaft; and the root of an extended end of the electrode wire is fixed with the spherical hinging structure of the shaking rod. The mechanism of the invention can regulate the deflection angle of the electrode wire through regulating the eccentricity of the dovetail slide rail, and shake the electrode wire by the rotation driven by an electric motor, and the eccentricity can be directly read by a dial indicator, achieving simple and reliable purposes. The mechanism of the invention is simple in structure with few transmission chains, high precision and high servo response performance.
Description
Technical field
The invention belongs to special processing technology field, relate in particular to the electrode orbiting mechanism of the three-dimensional adjustable electric spark of a kind of skeleton symbol precise micropore back taper processing.
Background technology
Along with scientific and technical progress, to minute aperture, processing has proposed special requirement to some advanced industrial products.For example, along with increase day by day to the requirement of automotive emission standard various countries, the fuel injection system of motor car engine is had higher requirement.Atomizer is as the core component of fuel injection system, and the shape of its spray orifice and dimensional accuracy have very important impact to the exhaust emissions of engine.In order to improve the discharge coefficient of atomizer atomizing effect and spray orifice, the diameter of spray orifice has been reduced to 0.1-0.2mm, and spray orifice is shaped as " back taper " form.
On the other hand, along with the development of Micro-EDM Machining Technology, spark machined minute aperture minimum-value aperture can reach several microns, and dimensional accuracy reaches micron dimension, and surface roughness reaches sub-micrometer scale.Because fine electric spark processing has without macroscopical cutting force, without burr, the advantage such as the spray orifice dimensional accuracy of processing is high, and surface roughness is low, along with reducing and raising to spray orifice shape need of spray orifice aperture, spark machined has played more and more important effect in the processing of fine spray orifice.
Current Micro Holes of Nozzle electric spark machine tool Shortcomings: the micropore of traditional spark machined, due to secondary discharge, often present positive bellmouth, this spray orifice affects nozzle discharge coefficient, is unfavorable for the raising of fuel oil ejection efficiency.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is to overcome the deficiency that fine electric spark processing injection hole on injection nozzle is positive taper, and the electrode orbiting mechanism of the three-dimensional adjustable electric spark of a kind of skeleton symbol precise micropore back taper processing is provided.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides the electrode orbiting mechanism of the three-dimensional adjustable electric spark of a kind of skeleton symbol precise micropore back taper processing, comprising: the rotating shaft of rotational power is provided;
The bottom of described rotating shaft has dovetail groove, and dovetail slide rail is installed in described dovetail groove, and one end of described dovetail slide rail is provided with eccentric adjuster, for regulating its position with respect to center in described dovetail groove;
The bottom of described dovetail slide rail is connected with rocking bar, and the other end of described rocking bar is spherical hinge structure;
The center of described electrode orbiting mechanism is provided with for the fiber tube that enters through wire electrode, described in enter fiber tube with described rotating shaft rotation, the spherical hinge structure end of the root of the external part of described wire electrode and described rocking bar is fixed.
Wherein, spherical hinge structure comprises narrow global of rocking bar one end and the taper hole guider of 90 ° coordinating with it.
Wherein, between described dovetail slide rail and described rocking bar, be also connected with, the sized cross roller bearings that is positioned at described dovetail slide rail bottom, the bearing of described sized cross roller bearings is fixed with bearing outer support cover outward, and the bearing enclose of described sized cross roller bearings compresses by inner ring pressure ring, outer ring pressure ring respectively.
Wherein, described rocking bar is socketed with spring outward, and the upper end of described spring is pressed with the reed fixing with described rocking bar, and described reed and described bearing outer support cover are compressed, and described spring lower end is pressed on 90 ° of taper hole guiders.
Wherein, described eccentric adjuster comprises the adjustment block that is positioned at described dovetail slide rail one side, in described adjustment block, be provided with through first of described adjustment block and described dovetail slide rail Surface Contact and adjust screw, and pass described adjustment block and screw in second of described dovetail slide rail and adjust screw.
Wherein, described electrode orbiting mechanism also comprises dial gauge, and it is for reading the offset of described dovetail slide rail.
Wherein, between the external part root of described wire electrode and the spherical hinge structure end of described rocking bar, by pneumatic chuck, clamp.
Wherein, outside the top of described rotating shaft, be fixedly connected with the synchronous pulley by driven by servomotor.
Wherein, the bottom of described outer cover is provided with lower connecting base, and described lower connecting base and described 90 ° of taper hole guiders are fixed.
(3) beneficial effect
In the electrode orbiting mechanism of the three-dimensional adjustable electric spark of the skeleton symbol precise micropore back taper processing that technique scheme provides, it comprises: the rotating shaft of rotational power is provided; The bottom of described rotating shaft has dovetail groove, and dovetail slide rail is installed in described dovetail groove, and one end of described dovetail slide rail is provided with eccentric adjuster, for regulating its position with respect to center in described dovetail groove; The bottom of described dovetail slide rail is connected with rocking bar, and the other end of described rocking bar is spherical hinge structure; The center of described electrode orbiting mechanism is provided with for the fiber tube that enters through wire electrode, described in enter fiber tube with described rotating shaft rotation, the spherical hinge structure end of the root of the external part of described wire electrode and described rocking bar is fixed.By adjusting the offset of dovetail slide rail, adjust the angle excursion of wire electrode, by driven by motor rotation, realize shaking of wire electrode, offset screwdriver manual adjustments, and directly read by dial gauge, simple and reliable.The present invention is simple in structure, and driving-chain is few, has higher precision and servo response performance.
Accompanying drawing explanation
Fig. 1 is the profile of the electrode orbiting mechanism of the three-dimensional adjustable electric spark of the skeleton symbol of embodiment of the present invention precise micropore back taper processing;
Fig. 2 is the cross-sectional structure schematic diagram in A-A cross section in Fig. 1.
Wherein, 1: enter fiber tube; 2: pressing plate; 3: synchronous pulley; 4: rotating shaft; 5: angular contact ball bearing; 6: outer cover; 7: dovetail slide rail; 8: sized cross roller bearings; 9: reed; 10: rocking bar; 11: lower connecting base; 12:90 ° of taper hole guider; 13: pneumatic chuck; 14: wire electrode; 15: spring; 16: inner ring pressure ring; 17: outer ring pressure ring; 18: bearing outer support cover; 19: dial gauge; 20: adjustment block; Adjust screw at 21: the first; 22. second adjusts screw.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Shown in Fig. 1, the electrode orbiting mechanism of the three-dimensional adjustable electric spark of a kind of skeleton symbol precise micropore back taper processing offering for the present embodiment, it comprises: the rotating shaft 4 of rotational power is provided; The bottom of rotating shaft 4 has dovetail groove, and dovetail slide rail 7 is installed in dovetail groove, and one end of dovetail slide rail 7 is provided with eccentric adjuster, for regulating its position with respect to center in dovetail groove; The bottom of dovetail slide rail 7 is connected with rocking bar 10, and the other end of rocking bar 10 is spherical hinge structure, rocking bar 10 turn the heart on the center line of rotating shaft 4; The center of electrode orbiting mechanism be provided with for through wire electrode 14 enter fiber tube 1, enter fiber tube 1 with rotating shaft 4 rotations, the spherical hinge structure end of the root of the external part of wire electrode 14 and rocking bar 10 is fixed.Outside the top of the driving of the present embodiment shaft 4 by rotating shaft 4, be fixedly connected with by the synchronous pulley 3 of driven by servomotor and realize.
Thereby the maximum feature of the present embodiment is to realize the adjustment to the angle excursion of wire electrode 14 by adjusting the offset of dovetail slide rail 7, thereby realizes by driven by motor rotation the processing that shaking of wire electrode 14 realized reverse taper holes.
Preferred in concrete the present embodiment, spherical hinge structure comprises narrow global of rocking bar 10 one end and the taper hole guider 12 of 90 ° coordinating with it.The middle part of rotating shaft 4 is outside equipped with angular contact ball bearing 5, and angular contact ball bearing 5 outer ends are connected with outer cover 6.The bottom of outer cover 6 is provided with lower connecting base 11, and lower connecting base 11 and 90 ° of taper hole guiders 12 are fixing.
Between dovetail slide rail 7 and rocking bar 10, be also connected with, be positioned at the sized cross roller bearings 8 of dovetail slide rail bottom, the bearing of sized cross roller bearings 8 is fixed with bearing outer support cover 18 outward, and the bearing enclose of sized cross roller bearings 8 compresses by inner ring pressure ring 16, outer ring pressure ring 17 respectively.Rocking bar 10 is outer is socketed with spring 15, and the upper end of spring 15 is pressed with the reed 9 fixing with rocking bar 10, and reed 9 and bearing outer support cover 18 are compressed, and spring 15 lower ends are pressed on 90 ° of taper hole guiders 12.
Eccentric adjuster comprises the adjustment block 20 that is positioned at dovetail slide rail 7 one sides, is provided with through adjustment block 20 and first of dovetail slide rail 7 Surface Contacts and adjusts screw 21, and pass adjustment block 20 and screw in second of dovetail slide rail 7 and adjust screw 22 in adjustment block 20.Adjustment for offset can realize by instruments such as screwdrivers.Electrode orbiting mechanism also comprises dial gauge 19, and it is for reading the offset of dovetail slide rail 7, simple and reliable.Dial gauge 19 is arranged on outer cover 6 as shown in fig. 1, can be by realizing the monitoring to the offset of dovetail slide rail 7 as devices such as displacement transducers.
Between the external part root of wire electrode 14 and the spherical hinge structure end of rocking bar 10, by pneumatic chuck 13, clamp.
The design principle of the present embodiment is: servomotor rotates by synchronous pulley 3 drive shafts 4, enter fiber tube 1 at the center of rotating shaft 4, not with rotating shaft 4 rotations, shake part and mainly sized cross roller bearings 8 and dovetail slide rail 7, consist of, spherical hinge structure is comprised of taper hole guider 12 and the rocking bar 10 with narrow global of 90 °.Rocking bar 10 turn the heart on the center line of rotating shaft 4.By adjusting the offset of dovetail slide rail 7, adjust the angle excursion of wire electrode 14, by driven by motor rotation, realize shaking of wire electrode 14.Offset screwdriver manual adjustments, and directly read by dial gauge 19, simple and reliable.
As can be seen from the above embodiments, the embodiment of the present invention provides the electrode orbiting mechanism of the three-dimensional adjustable electric spark of a kind of skeleton symbol precise micropore back taper processing, it is characterized in that, comprising: the rotating shaft 4 of rotational power is provided; The bottom of rotating shaft 4 has dovetail groove, and dovetail slide rail 7 is installed in dovetail groove, and one end of dovetail slide rail 7 is provided with eccentric adjuster, for regulating its position with respect to center in dovetail groove; The bottom of dovetail slide rail 7 is connected with rocking bar 10, and the other end of rocking bar 10 is spherical hinge structure; The center of electrode orbiting mechanism be provided with for through wire electrode 14 enter fiber tube 1, enter fiber tube 1 with rotating shaft 4 rotations, the spherical hinge structure end of the root of the external part of wire electrode 14 and rocking bar 10 is fixed.This mechanism, by regulating the offset of dovetail slide rail 7 to adjust the angle excursion of wire electrode 14, realizes shaking of wire electrode 14 by driven by motor rotation, and this offset can directly be read by dial gauge 19, simple and reliable.The present invention is simple in structure, and driving-chain is few, has higher precision and servo response performance.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (9)
1. an electrode orbiting mechanism for the three-dimensional adjustable electric spark of skeleton symbol precise micropore back taper processing, is characterized in that, comprising: the rotating shaft (4) of rotational power is provided;
The bottom of described rotating shaft (4) has dovetail groove, and dovetail slide rail (7) is installed in described dovetail groove, and one end of described dovetail slide rail (7) is provided with eccentric adjuster, for regulating its position with respect to center in described dovetail groove;
The bottom of described dovetail slide rail (7) is connected with rocking bar (10), and the other end of described rocking bar (10) is spherical hinge structure;
The center of described electrode orbiting mechanism is provided with for entering fiber tube (1) through wire electrode (14), describedly enter fiber tube (1) with described rotating shaft (4) rotation, the spherical hinge structure end of the root of the external part of described wire electrode (14) and described rocking bar (10) is fixed;
Between described dovetail slide rail (7) and described rocking bar (10), be also connected with, be positioned at the sized cross roller bearings (8) of described dovetail slide rail bottom, the bearing of described sized cross roller bearings (8) is fixed with bearing outer support cover (18) outward, and the bearing enclose of described sized cross roller bearings (8) compresses by inner ring pressure ring (16), outer ring pressure ring (17) respectively.
2. the electrode orbiting mechanism of the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 1 precise micropore back taper processing, is characterized in that, spherical hinge structure comprises narrow global of rocking bar (10) one end and the 90 ° of taper hole guiders (12) that coordinate with it.
3. the electrode orbiting mechanism that the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 2 precise micropore back taper is processed, it is characterized in that, the outer spring (15) that is socketed with of described rocking bar (10), the upper end of described spring (15) is pressed with the reed (9) fixing with described rocking bar (10), described reed (9) and described bearing outer support cover (18) are compressed, and described spring (15) lower end is pressed on described 90 ° of taper hole guiders (12).
4. the electrode orbiting mechanism that the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 1 precise micropore back taper is processed, it is characterized in that, described eccentric adjuster comprises the adjustment block (20) that is positioned at described dovetail slide rail (7) one sides, in described adjustment block (20), be provided with through described adjustment block (20) and first of described dovetail slide rail (7) Surface Contact and adjust screw (21), and pass described adjustment block (20) and screw in second of described dovetail slide rail (7) and adjust screw (22).
5. the electrode orbiting mechanism of the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 4 precise micropore back taper processing, is characterized in that, described electrode orbiting mechanism also comprises dial gauge (19), and it is for reading the offset of described dovetail slide rail (7).
6. the electrode orbiting mechanism that the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 1 precise micropore back taper is processed, it is characterized in that, between the external part root of described wire electrode (14) and the spherical hinge structure end of described rocking bar (10), by pneumatic chuck (13), clamp.
7. the electrode orbiting mechanism of the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 1 precise micropore back taper processing, is characterized in that, is fixedly connected with the synchronous pulley (3) by driven by servomotor outside the top of described rotating shaft (4).
8. the electrode orbiting mechanism that the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 3 precise micropore back taper is processed, it is characterized in that, the middle part of described rotating shaft (4) is outside equipped with angular contact ball bearing (5), and described angular contact ball bearing (5) outer end is connected with outer cover (6).
9. the electrode orbiting mechanism that the three-dimensional adjustable electric spark of skeleton symbol as claimed in claim 8 precise micropore back taper is processed, it is characterized in that, the bottom of described outer cover (6) is provided with lower connecting base (11), and described lower connecting base (11) is fixing with described 90 ° of taper hole guiders (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445317.2A CN102528191B (en) | 2011-12-27 | 2011-12-27 | Simple, three-dimensional and adjustable electrode shaking mechanism for processing inverted cone of precise electric spark micro hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445317.2A CN102528191B (en) | 2011-12-27 | 2011-12-27 | Simple, three-dimensional and adjustable electrode shaking mechanism for processing inverted cone of precise electric spark micro hole |
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| CN102528191A CN102528191A (en) | 2012-07-04 |
| CN102528191B true CN102528191B (en) | 2014-01-29 |
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| CN108817578A (en) * | 2018-07-09 | 2018-11-16 | 浙江芊荷科技有限公司 | The electrode guide of electric spark small hole processing machine bed |
| CN113042837B (en) * | 2021-03-25 | 2022-05-17 | 北京石油化工学院 | Fine electrode wire feeding mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202398912U (en) * | 2011-12-27 | 2012-08-29 | 北京市电加工研究所 | Simple three-dimensional adjustable electrode rocker mechanism for machining spark precise micropore back taper |
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| JPH07328852A (en) * | 1994-06-07 | 1995-12-19 | Toray Precision Kk | Deformed fine hole electric discharge machining method and deformed fine hole electric discharge machine |
| JPH08294823A (en) * | 1995-04-27 | 1996-11-12 | Mitsubishi Electric Corp | Wire electric discharge machine |
| DE10155607A1 (en) * | 2001-11-13 | 2003-05-15 | Bosch Gmbh Robert | Method and device for electrical discharge machining |
| CN101318244B (en) * | 2008-05-22 | 2010-04-14 | 清华大学 | Superfine back taper hole spark-erosion machining electrode movement guide mechanism |
| JP5220111B2 (en) * | 2008-07-29 | 2013-06-26 | 三菱電機株式会社 | Pore electric discharge machining apparatus and electric discharge machining method |
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| CN202398912U (en) * | 2011-12-27 | 2012-08-29 | 北京市电加工研究所 | Simple three-dimensional adjustable electrode rocker mechanism for machining spark precise micropore back taper |
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Address after: 100191 Dimon building, B3 Huayuan Road, Haidian District, Beijing Patentee after: Beijing Electric Processing Research Institute Co.,Ltd. Patentee after: DIMON BEIJING CNC TECHNOLOGY Co.,Ltd. Address before: 100191 Dimon building, B3 Huayuan Road, Haidian District, Beijing Patentee before: BEIJING INSTITUTE OF ELECTRO-MACHINING Patentee before: DIMON BEIJING CNC TECHNOLOGY Co.,Ltd. |