CN110280853A - A kind of positioning fixture design method of quick-replaceable microelectrode - Google Patents
A kind of positioning fixture design method of quick-replaceable microelectrode Download PDFInfo
- Publication number
- CN110280853A CN110280853A CN201910560014.1A CN201910560014A CN110280853A CN 110280853 A CN110280853 A CN 110280853A CN 201910560014 A CN201910560014 A CN 201910560014A CN 110280853 A CN110280853 A CN 110280853A
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- Prior art keywords
- microelectrode
- locating piece
- electrode
- electrode locating
- shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention provides a kind of positioning fixture design method of quick-replaceable microelectrode, belong to the spark discharge processing technique field in non-traditional processing.Electrode locating piece is provided with through-hole along machine tool chief axis axial direction, shape of through holes and size are consistent with the shape of the practical radial section of the microelectrode of required clamping and size, by slow wire feeding Wire EDM under same clamped one time, when machined electrode locating piece shape, processes together.The electrode locating piece processed is mounted on the dedicated electrode holder of sinking EDM machine.Parallel Function centering electrode locating piece is looked for using what amesdial or spark-erosion machine tool carried.Then microelectrode and corresponding shim liner are put into the through-hole of electrode locating piece, tighten fixing screws, complete the installation and positioning of microelectrode.The problem of microelectrode is difficult to centering by this method is converted into the biggish locating piece centering problem of volume, greatly reduces operation difficulty and human error, avoids the problem of frequently replacement electrode need to position repeatedly.
Description
Technical field
The invention belongs to the spark discharge processing technique fields in non-traditional processing, are related specifically to a kind of quick-replaceable
The positioning fixture of microelectrode designs.
Background technique
Some use machinings can not process or unmanageable fine structure needs are processed by spark discharge；With
The development of microstructure and micro devices, the size of tool-electrode also reduces therewith in electrical discharge machining, for micro-electrode
Frequently with production and online measuring technique to avoid installation caused by offline processing and are determined online on miniature discharging processing machine
Position error.Accordingly for the microelectrode used on conventional discharge processing machine, emphasis is then how effectively to drop
The positioning of low electrode and installation error.Parallel Function centering generally is looked for using what amesdial or lathe carried in electrical discharge machining
Electrode, but since microelectrode size is smaller, transverse direction, longitudinal length and the area scanned of amesdial contact electrode all compared with
It is small, therefore there is very big operation difficulty and human error in centering electrode.On the other hand, due to polar effect, electrical discharge machining
The loss of middle tool-electrode is inevitable, and directly influences the dimensional accuracy and the accuracy of form and position of part.In view of dimensional effect,
Microelectrode is influenced that more very, therefore electrode need to be replaced frequently to reduce the influence of export license by export license.It is comprehensive with
Upper consideration, a kind of fast changeable microelectrode of reasonable design and the positioning fixture for guaranteeing error very little when it is installed every time
It is particularly important.
Summary of the invention
The present invention provides a kind of positioning fixture design methods of quick-replaceable microelectrode, by between centering positioning fixture
The relative positional relationship for guaranteeing electrode and machine tool chief axis is connect, the operation difficulty of centering microelectrode is greatly reduced and is artificially missed
Difference, and then avoid the problem that frequently replacing electrode need to position repeatedly.
Technical solution of the present invention:
A kind of positioning fixture design method of quick-replaceable microelectrode is divided into production and the replacement tool of electrode locating piece
Electrode process process two parts:
(1) production of electrode locating piece: electrode locating piece 5 selects the corrosion resistant materials such as stainless steel, by slow wire feeding wire electric discharge
Cutting processing preparation, outer dimension is given according to 1 size of electric spark fixture, in a rectangular parallelepiped shape and electric spark fixture 1 is suitble to fill
Folder；Electrode locating piece 5 is provided with through-hole, the microelectrode of shape of through holes and size and required clamping along machine tool chief axis axial direction
The shape and size of radial section are consistent, by slow wire feeding Wire EDM under same clamped one time, outside machined electrode locating piece 5
It is processed together when shape；Microelectrode is locked radial through microelectrode fixing screws 3, and corresponding through-hole is in microelectrode fixing screws
There are the surpluses of 0.8~1.2mm in 3 fixed directions, for placing shim liner 4；Drilling and tapping process are completed first, then are pressed
Sequence linear cutter goes out to install the through-hole and monnolithic case of microelectrode；
(2) it replaces tool-electrode technical process: the electrode locating piece 5 processed is mounted on sinking EDM machine
On electrode holder；5 lateral surface of Parallel Function centering electrode locating piece is looked for using what amesdial or spark-erosion machine tool carried, makes electrode
5 horizontal plane of locating piece and vertical plane respectively with machine tool chief axis axis is perpendicular and parallel relation；Then by microelectrode and accordingly
Shim liner 4 be put into the through-hole of electrode locating piece 5, tighten microelectrode fixing screws 3, complete the installation of microelectrode and fixed
Position.
Beneficial effects of the present invention: since the through-hole and locating piece lateral surface of installation electrode are under same benchmark using line
Cutting forming, well ensure the depth of parallelism between the two；Electrode and shim liner are clamped by soket head cap screw, guarantees electrode
Side is fitted closely with through-hole side, i.e., guarantees the flat of electrode side and machine tool chief axis indirectly by centering locating piece lateral surface
Row relationship.Screw need to be only unclamped when replacing electrode, new electrode is installed.Electrode is aided with shim liner to guarantee electrode stress more
Add uniformly and does not damage electrode.The problem of microelectrode is difficult to centering by this method is converted into the biggish locating piece centering of volume and asks
Topic, greatly reduces operation difficulty and human error, so that replacement electrode becomes very convenient and fast, avoids frequent replacement
The problem of electrode need to position repeatedly saves time, improves processing efficiency.This fixture is not only applicable to cuboid, cylinder
The rule shape electrode such as body, can also be applied to complicated shape electrode, only need to stay well-regulated cramping body above complexity Cavity surface i.e.
It can.The present invention can further improve the precision of electrical discharge machining part, expand its application range.
Detailed description of the invention
Fig. 1 (a) is the schematic diagram of electrode locating piece.
Fig. 1 (b) is Fig. 1 (a) electrode locating piece A-A sectional view.
Fig. 2 is the combination installation diagram of electrode locating piece and electric spark special fixture and cuboid electrode.
Fig. 3 is the combination installation diagram of electrode locating piece and electric spark special fixture and non-regular shape electrode.
In figure: 1 electric spark fixture；2 electrode locating piece fixing screws；3 microelectrode fixing screws；4 shim liners；5 electrodes
Locating piece；6 cuboid microelectrodes；7 irregular shape microelectrodes.
Specific embodiment
Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.
A kind of positioning fixture design method of quick-replaceable microelectrode is divided into production and the replacement tool of electrode locating piece
Electrode process process two parts.
This example is directed to having a size of 40mm × 10mm × 9mm fine copper cuboid electrode orientation problem, and corresponding ground electrode is fixed
Position 5 outer dimension of block may be set to 60mm × 30mm × 25mm.
As shown in Figure 1, electrode locating piece 5 can be prepared by slow wire feeding Wire-cut Electrical Discharge Machining, the size of interior bone
Then according to the sectional dimension of cuboid microelectrode 6.Since interior angle circular arc can be generated when Wire-cut Electrical Discharge Machining right angle,
Right angle track is changed to 3/4 circular arc of 2~4mm of diameter；The damage when the direction of 3 precession of microelectrode fixing screws is to avoid clamping
The side of bad cuboid microelectrode 6, and guarantee clamping force more evenly, it is desirable that the size of through-hole is than cuboid electricity in this direction
The pole big 1mm of 6 corresponding size, for placing shim liner 4；It is micro- for cuboid in the threaded hole of 5 side of electrode locating piece processing M4
Small electrode 6 clamps, and since drilling and tapping can generate burr, should complete drilling and tapping process first, then successively
Linear cutter goes out to install 5 monnolithic case of through-hole and electrode locating piece of cuboid microelectrode 6, due on electrode locating piece 5
Through-hole and side be to be shaped under same benchmark using linear cutter, therefore the depth of parallelism has a good guarantee.
It after electrode locating piece 5 makes, is installed on electric spark fixture 1, and with electrode locating piece fixing screws 2
It is fixed；5 lateral surface of Parallel Function centering electrode locating piece is looked for followed by what amesdial or spark-erosion machine tool carried, with
Guarantee the parallel relation of electrode locating piece 5 and machine tool chief axis；When cuboid microelectrode 6 is installed, it is aided with shim liner 4 to guarantee to grow
Cube microelectrode 6 is more uniformly stressed and does not damage electrode, and electrode locating piece fixing screws 2, which screw, realizes cuboid small electric
6 side of pole is fitted closely with 5 medial surface of electrode locating piece, ensure that 5 lateral surface of electrode locating piece, medial surface and cuboid are micro-
Three faces of 6 side of small electrode are parallel.
Electrode locating piece fixing screws 2 need to be only unclamped when replacement electrode every time, remove old cuboid microelectrode 6, are replaced
Upper new cuboid microelectrode 6, then electrode locating piece fixing screws 2 are tightened, without positioning repeatedly.
Claims (1)
1. a kind of positioning fixture design method of quick-replaceable microelectrode, which is characterized in that the positioning fixture design method point
Production and replacement tool-electrode technical process two parts for electrode locating piece:
(1) production of electrode locating piece: electrode locating piece (5) selects corrosion resistant material, by slow wire feeding Wire-cut Electrical Discharge Machining system
Standby, outer dimension is given according to electric spark fixture (1) size, in a rectangular parallelepiped shape and is suitble to electric spark fixture (1) clamping；Electrode
Locating piece (5) is radial along the microelectrode that machine tool chief axis axial direction is provided with through-hole, shape of through holes and size and required clamping
The shape and size in section are consistent, by slow wire feeding Wire EDM under same clamped one time, machined electrode locating piece (5) shape
When process together；Microelectrode is locked radial through microelectrode fixing screws (3), and corresponding through-hole is in microelectrode fixing screws
(3) there are the surpluses of 0.8~1.2mm in fixed direction, for placing shim liner (4)；Drilling and tapping process are completed first,
Linear cutter goes out to install the through-hole and monnolithic case of microelectrode in order again；
(2) it replaces tool-electrode technical process: the electrode locating piece (5) processed is mounted on to the electricity of sinking EDM machine
On the fixture of pole；Parallel Function centering electrode locating piece (5) lateral surface is looked for using what amesdial or spark-erosion machine tool carried, makes electrode
Locating piece (5) horizontal plane and vertical plane respectively with machine tool chief axis axis is perpendicular and parallel relation；Then by microelectrode and phase
The shim liner (4) answered is put into the through-hole of electrode locating piece (5), is tightened microelectrode fixing screws (3), is completed microelectrode
Installation and positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560014.1A CN110280853A (en) | 2019-06-26 | 2019-06-26 | A kind of positioning fixture design method of quick-replaceable microelectrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560014.1A CN110280853A (en) | 2019-06-26 | 2019-06-26 | A kind of positioning fixture design method of quick-replaceable microelectrode |
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| Publication Number | Publication Date |
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| CN110280853A true CN110280853A (en) | 2019-09-27 |
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| CN201910560014.1A Pending CN110280853A (en) | 2019-06-26 | 2019-06-26 | A kind of positioning fixture design method of quick-replaceable microelectrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773830A (en) * | 2019-11-07 | 2020-02-11 | 中国航空制造技术研究院 | Accurate positioning device and method for thin-wall shell electrolytic forming |
| CN110899874A (en) * | 2019-11-29 | 2020-03-24 | 东莞市闻誉实业有限公司 | Copper worker standard customized clamp, copper worker machining method and copper worker application method |
| CN113732419A (en) * | 2021-09-29 | 2021-12-03 | 中国航发动力股份有限公司 | Method and device for machining process groove |
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| CN103846511A (en) * | 2012-11-30 | 2014-06-11 | 湖北华强科技有限责任公司 | Precision positioner for medicinal freeze-drying diaphragm rubber plug mould electrode |
| CN204431126U (en) * | 2015-01-29 | 2015-07-01 | 广州中益机械有限公司 | Electrode sectional fixture |
| CN107552902A (en) * | 2017-09-04 | 2018-01-09 | 哈尔滨理工大学 | A kind of electric spark machine tool porous processing electrode holder |
| CN107695471A (en) * | 2017-11-16 | 2018-02-16 | 昆山泽华精密模具有限公司 | Polygonal integral electrode clamping device |
| CN107953005A (en) * | 2017-12-01 | 2018-04-24 | 哈尔滨理工大学 | A kind of flexible jig of electric spark linear cutting machine |
| CN207464384U (en) * | 2017-11-16 | 2018-06-08 | 昆山泽华精密模具有限公司 | Electrical discharge machining inclination fixture |
| CN108544391A (en) * | 2018-03-16 | 2018-09-18 | 上海永茂泰汽车零部件有限公司 | Grip device for electrode fabrication |
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2019
- 2019-06-26 CN CN201910560014.1A patent/CN110280853A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846511A (en) * | 2012-11-30 | 2014-06-11 | 湖北华强科技有限责任公司 | Precision positioner for medicinal freeze-drying diaphragm rubber plug mould electrode |
| CN204431126U (en) * | 2015-01-29 | 2015-07-01 | 广州中益机械有限公司 | Electrode sectional fixture |
| CN107552902A (en) * | 2017-09-04 | 2018-01-09 | 哈尔滨理工大学 | A kind of electric spark machine tool porous processing electrode holder |
| CN107695471A (en) * | 2017-11-16 | 2018-02-16 | 昆山泽华精密模具有限公司 | Polygonal integral electrode clamping device |
| CN207464384U (en) * | 2017-11-16 | 2018-06-08 | 昆山泽华精密模具有限公司 | Electrical discharge machining inclination fixture |
| CN107953005A (en) * | 2017-12-01 | 2018-04-24 | 哈尔滨理工大学 | A kind of flexible jig of electric spark linear cutting machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773830A (en) * | 2019-11-07 | 2020-02-11 | 中国航空制造技术研究院 | Accurate positioning device and method for thin-wall shell electrolytic forming |
| CN110773830B (en) * | 2019-11-07 | 2020-09-08 | 中国航空制造技术研究院 | Accurate positioning method for thin-wall shell electrolytic forming |
| CN110899874A (en) * | 2019-11-29 | 2020-03-24 | 东莞市闻誉实业有限公司 | Copper worker standard customized clamp, copper worker machining method and copper worker application method |
| CN113732419A (en) * | 2021-09-29 | 2021-12-03 | 中国航发动力股份有限公司 | Method and device for machining process groove |
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Application publication date: 20190927 |
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