CN106925848B - Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk - Google Patents
Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk Download PDFInfo
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- CN106925848B CN106925848B CN201710356530.3A CN201710356530A CN106925848B CN 106925848 B CN106925848 B CN 106925848B CN 201710356530 A CN201710356530 A CN 201710356530A CN 106925848 B CN106925848 B CN 106925848B
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- Prior art keywords
- wire electrode
- guide pipe
- compression bar
- column
- sealing mechanism
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Classifications
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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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
-
- 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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
Abstract
The invention discloses a kind of rotary sealing mechanisms for clamping different-diameter hollow tube-shaped electrode silk, and the mechanism includes rotating actuator, sealing mechanism and wire electrode to neutral clamping device；The rotating actuator includes live spindle, synchronous pulley and c-type retaining ring；The sealing mechanism includes guide pad, rubber seal plug, O-ring seal and the column that is located by connecting, and the wire electrode includes hinge compression bar to neutral clamping device, the first guide pipe, the second guide pipe, ceramic support block, compressed spring, be located by connecting column and cylinder.The normally closed clip mechanism of rotation that the present invention can be used in blade film cooling holes electric spark machine tool live spindle, the highly precision clamp rotation of tool-electrode can be achieved, the sealing of hollow high-pressure working solution and different-diameter wire electrode clamp neutrality, it applies in blade film cooling holes manufacture field, can effectively solve and improve some structure Pinch technology problems.
Description
Technical field
The present invention relates to a kind of rotary sealing mechanisms for clamping different-diameter hollow tube-shaped electrode silk, belong to micro hole electrical fire
Flower capillary processing technical field.
Background technique
The processing of aero engine turbine blades gaseous film control circular hole is special using high speed EDM for small holes technology
Sign is first is that guarantee that hole shape precision keeps discharging product fast second is that passing to high-pressure work liquid in hollow electrode by electrode rotary
Speed discharge, improves processing efficiency.Traditional electric spark Fine and Deep Hole lathe uses back-pushed mainshaft mechanism, the i.e. self-tightening type of front-end of spindle
Drill chuck holds the processing of wire electrode rear end axial feed, is limited to grow the rigidity of thin wire electrode, wire electrode processes the diameter of front end
It jumps larger, it is difficult to meet the processing of high-precision pass, holding electrode silk front end be machined to ensure that diameter jump is more to close thus
The selection of reason.Due to the particularity of turbine blade film cooling holes processing, electrode interior working solution design pressure wants that 10Mpa can be reached,
Want that electrode rotary can be clamped, can be realized wire electrode it is automatic opening with clamp and cooperate normally opened clip reach back and forth wriggle into
Silk purpose, will also be able to solve different diameter wire electrodes to neutral problem, and traditional drill chuck is screwed using manual nut, at all
The reciprocating motion of wire electrode cannot be realized, so to design the completely new wire electrode guiding collet of one kind can be only achieved above-mentioned want
It asks.
Summary of the invention
In order to reach above-mentioned requirements, the present invention provides a kind of rotatory sealings for clamping different-diameter hollow tube-shaped electrode silk
Mechanism seals for the automatic clamping rotation of wire electrode, back and forth into silk, automatic pressure, is suitable for hollow logical liquid wire electrode diameter
0.2 arrives 1mm range.
Technical scheme is as follows:
A kind of rotary sealing mechanism clamping different-diameter hollow tube-shaped electrode silk, it is characterised in that: the mechanism includes
Rotating actuator, sealing mechanism and wire electrode are to neutral clamping device；The rotating actuator includes live spindle, same
Walk belt wheel and c-type retaining ring；The sealing mechanism includes guide pad, rubber seal plug, O-ring seal and the column that is located by connecting, described
Wire electrode includes hinge compression bar to neutral clamping device, the first guide pipe, the second guide pipe, ceramic support block, compressed spring, determines
Position connecting column and cylinder；
The rotating actuator is driven the rotation of live spindle by synchronous pulley, and the synchronous pulley passes through c-type retaining ring
It is axially fixed in live spindle, the column top that is located by connecting is mounted in live spindle, by tightening flange nut dish axle
To locking positioning column in succession, to drive the high-precision rotary of overall mechanism；
Guide pad and rubber seal plug in the sealing mechanism, which are placed in, to be located by connecting inside column, and wire electrode is led from rotation
The center of guide pad and rubber seal plug is passed through after entering inside axis, after leading to high-pressure work liquid inside live spindle, rubber
The radial deformation of sealing-plug realizes the sealing of wire electrode periphery, by O-shaped between live spindle and the column counterface that is located by connecting
Sealing ring prevents the leakage of the conical surface；
It is fixed that the wire electrode is successively set on the first guide pipe, the second guide pipe in neutral clamping device from top to bottom
In the connecting column of position, and it is located at the lower end of rubber seal plug, the hinge compression bar is fixed on by joint pin and ceramic support block
It is located by connecting on column, end compresses wire electrode under the action of the hinge compression bar passes through compressed spring, reaches normally off, described
Cylinder is located at below hinge compression bar, by the upward movement of cylinder, so that hinge compression bar end is left wire electrode, reaches normally opened shape
State, processing the pulse power be introduced into wire electrode by hinge compression bar, by insulative guide sleeves, ceramic support block, the first guide pipe and
Second guide pipe and other positions are insulated.
Agree with and be mounted in the cone tank of live spindle, led with rotation for cone in the above-mentioned column top side that is located by connecting
Conical surface of shaft positioning connection.
The above-mentioned column that is located by connecting opens up a through-hole, installs a bulb plunger and resists the second guide pipe.
Above-mentioned second guide pipe is ceramic guide pipe, and the ceramics guide pipe is a hollow cylinder, hole size essence
Degree has cooperation to require with wire electrode diameter, and different-diameter wire electrode corresponds to the ceramic guide pipe of different hole size precision.Pottery
The cylinder that section is semicircle is diametrically cut into porcelain guide pipe one end, forms a platform, as wire electrode by hinge compression bar at this
Pressure-bearing surface, play limit positioning action, the Clamping Center to guarantee wire electrode is consistent with main shaft rotation center；The ceramics guide pipe
The end of lower end opens up a circular groove, form a circle concave station, when changing so as to wire electrode diameter, facilitates and is matched
The replacement of ceramic guide pipe.The end of the other end opens up a groove, and groove is connected by two cambered surfaces and formed, and is and bulb plunger
Mating surface.
Above-mentioned hinge compression bar includes a rectangular-shape ontology, and an arc compression bar, the arc is arranged in one end of ontology
On the body, the other end resists wire electrode, the other end of the opposing arcuate compression bar position of the ontology for one end connection of compression bar
Cylinder is arranged in lower section, and top is arranged an insulative guide sleeves, installs compressed spring, described compressed spring one end on the insulative guide sleeves
Flange nut disk is resisted, the other end is set on insulative guide sleeves.
Advantageous effects of the invention:
This structure design innovation point be to solve the problems, such as different diameter wire electrodes clampings to neutral, be able to achieve the automatic of electrode
It clamps and opens, water flowing rotation master in the electric spark of the cooperation mechanisms such as rotary joint and normally opened lower clip composition complete set
Axis, under the premise of guaranteeing main shaft running accuracy, wire electrode circular runout be can control within 1um, can meet adding for high accurate hole
Work is applied in aerial blade air film hole manufacture field, be can effectively solve and is improved some structure Pinch technology problems.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of ceramic guide pipe.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
A kind of rotary sealing mechanism clamping different-diameter hollow tube-shaped electrode silk, mechanism includes rotating actuator, close
Sealing mechanism and wire electrode are to neutral clamping device；Rotating actuator includes live spindle 1, synchronous pulley 2 and c-type retaining ring
11；Sealing mechanism includes guide pad 12, rubber seal plug 3, O-ring seal 5 and the column 8 that is located by connecting, and wire electrode clamps neutrality
Mechanism includes hinge compression bar 18, the first guide pipe 4, the second guide pipe 9, ceramic support block 17, compressed spring 13, be located by connecting column
8 and cylinder 15；
Rotating actuator is driven the rotation of live spindle 1 by synchronous pulley 2, and synchronous pulley 2 is axial by c-type retaining ring 11
It is fixed in live spindle 1, is mounted in live spindle 1 at the top of the column 8 that is located by connecting, by tightening 6 axial lock of flange nut disk
Tightening position column 8 in succession, to drive the high-precision rotary of overall mechanism；
Guide pad 12 and rubber seal plug 3 in sealing mechanism, which are placed in, to be located by connecting inside column 8, and wire electrode 10 is from rotation
The center of guide pad 12 and rubber seal plug 3 is passed through after entering inside main shaft 1, leads to high-pressure work liquid inside live spindle 1
Afterwards, the radial deformation of rubber seal plug 3 realizes the sealing of 10 periphery of wire electrode, live spindle 1 and 8 counterface of column that is located by connecting
Between by O-ring seal 5, prevent the leakage of the conical surface；
Wire electrode is successively set on positioning to the first guide pipe 4, the second guide pipe 9 in neutral clamping device from top to bottom
In connecting column, and it is located at the lower end of rubber seal plug 3, hinge compression bar 18 is fixed on by joint pin 16 and ceramic support block 17
It being located by connecting on column 8, end compresses wire electrode 10 under the action of hinge compression bar 18 passes through compressed spring 13, reach normally off,
Cylinder 15 is located at 18 lower section of hinge compression bar, by the upward movement of cylinder 15, so that 18 end of hinge compression bar is left wire electrode 10, reaches
To normally open, processes the pulse power and be introduced into wire electrode 10 by hinge compression bar 18, by insulative guide sleeves 14, ceramic support block
17, the first guide pipe 4 and the second guide pipe 9 insulate with other positions.
8 top-side of column that is located by connecting is cone, agrees with and is mounted in the cone tank of live spindle 1, with live spindle 1
Conical surface positioning connection.
The column 8 that is located by connecting opens up a through-hole, installs a bulb plunger 7 and resists the second guide pipe 9.
Second guide pipe 9 is ceramic guide pipe, and ceramic guide pipe is a hollow cylinder, and the end of lower end opens up a circle
Slot, forms a circle concave station 9-1, and ceramic guide pipe is diametrically cut into the cylinder that section is semicircle in the one end for having concave station, forms one
A platform 9-2 is the compression confined planes of wire electrode 10；The end of the other end opens up a groove 9-3, and groove 9-3 is by two arcs
Face connects to be formed, and is and 7 mating surface of bulb plunger.
Hinge compression bar 18 includes a rectangular-shape ontology, and an arc compression bar is arranged in one end of ontology, arc compression bar
One end connects on the body, and the other end resists wire electrode 10, the lower section setting of the other end of the opposing arcuate compression bar position of ontology
Cylinder, top are arranged an insulative guide sleeves 14, install compressed spring 13 on insulative guide sleeves 14,13 one end of compressed spring resists flange
Nut plate 6, the other end are set on insulative guide sleeves 14.
The processing pulse power is introduced into wire electrode 10 by hinge compression bar 18, by insulative guide sleeves 14, ceramic support block 17
It insulate with the second guide pipe 9 with other positions.Ceramic guide pipe and 10 small―gap suture of wire electrode cooperate guarantee clamping to neutrality,
The wire electrode of different-diameter is equipped with the ceramic guide pipe of respective interior bores dimensional accuracy, and the second guide pipe 9 passes through bulb plunger 7
Axial restraint can conveniently remove the second guide pipe 9 and be replaced when hinge compression bar 18 unclamps.
In the course of work, servo motor makes the stopping of live spindle 1 navigate to fixed position, pushes hinge to the ventilation of cylinder 15
Compression bar 18 makes to clamp guiding mechanism opening, and wire electrode 10 passes through guiding briquetting 12, rubber seal from 1 inner conduit of live spindle
Plug 3 and the second guide pipe 9；Turn off clamping guiding mechanism, the starting rotation of live spindle 1,18 holding electrode silk 10 of hinge compression bar
Rotate together, electric discharge perforation processing can be achieved after leading to working solution and power supply, cooperate the use of lower clip be able to achieve electrode into silk
It is operated with silk is moved back.When processing aperture, which changes, needs replacing wire electrode, it is only necessary to replace matched second guide pipe 9 i.e.
It can.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of rotary sealing mechanism for clamping different-diameter hollow tube-shaped electrode silk, it is characterised in that: the clamping is different straight
The rotary sealing mechanism of diameter hollow tube-shaped electrode silk includes rotating actuator, sealing mechanism and wire electrode to neutral clamping machine
Structure；The rotating actuator includes live spindle, synchronous pulley and c-type retaining ring；The sealing mechanism includes guide pad, rubber
Sealing-plug, O-ring seal and the column that is located by connecting, the wire electrode to neutral clamping device include hinge compression bar, the first guide pipe,
Second guide pipe, ceramic support block, compressed spring, be located by connecting column and cylinder；
The rotating actuator is driven the rotation of live spindle by synchronous pulley, and the synchronous pulley is axial by c-type retaining ring
It is fixed in live spindle, the column top that is located by connecting is mounted in live spindle, by tightening flange nut disk axial lock
Tightening position column in succession, to drive the high-precision rotary of overall mechanism；
Guide pad and rubber seal plug in the sealing mechanism, which are placed in, to be located by connecting inside column, and wire electrode is out of live spindle
Portion passes through the center of guide pad and rubber seal plug after entering, after leading to high-pressure work liquid inside live spindle, rubber seal
The radial deformation of plug realizes the sealing of wire electrode periphery, by O-shaped sealing between live spindle and the column counterface that is located by connecting
Circle, prevents the leakage of the conical surface；
The wire electrode is successively set on positioning to the first guide pipe, the second guide pipe in neutral clamping device from top to bottom and connects
It connects in column, and is located at the lower end of rubber seal plug, the hinge compression bar is fixed on positioning by joint pin and ceramic support block
On connecting column, end compresses wire electrode under the action of the hinge compression bar passes through compressed spring, reaches normally off, the cylinder
Below hinge compression bar, by the upward movement of cylinder, so that hinge compression bar end is left wire electrode, reach normally open, add
Working pulse power source is introduced into wire electrode by hinge compression bar, is led by insulative guide sleeves, ceramic support block, the first guide pipe and second
It insulate to pipe and other positions.
2. clamping the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk according to claim 1, it is characterised in that: institute
The column top side that is located by connecting is stated as cone, agrees with and is mounted in the cone tank of live spindle, positioned with the live spindle conical surface
Connection.
3. clamping the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk according to claim 1, it is characterised in that: institute
It states the column that is located by connecting and opens up a through-hole, a bulb plunger is installed and resists the second guide pipe.
4. clamping the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk according to claim 1, it is characterised in that: institute
The second guide pipe is stated as ceramic guide pipe, the ceramics guide pipe is a hollow cylinder, hole size precision and wire electrode
Diameter has cooperation to require, and different-diameter wire electrode corresponds to the ceramic guide pipe of different hole size precision；Ceramic guide pipe one
The cylinder that section is semicircle is diametrically cut at end, forms a platform, is risen as wire electrode by the pressure-bearing surface of hinge compression bar at this
Positioning action is limited, the Clamping Center to guarantee wire electrode is consistent with main shaft rotation center；The end of the ceramics guide pipe lower end
A circular groove is opened up, a circle concave station is formed, when changing so as to wire electrode diameter, facilitates the ceramic guide pipe matched
Replacement；The end of the other end opens up a groove, and groove is connected by two cambered surfaces and formed, and is and bulb plunger mating surface.
5. clamping the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk according to claim 1, it is characterised in that: institute
Stating hinge compression bar includes a rectangular-shape ontology, and an arc compression bar, one end of the arc compression bar is arranged in one end of ontology
On the body, the other end resists wire electrode for connection, and gas is arranged in the lower section of the other end of the opposing arcuate compression bar position of the ontology
Cylinder, top are arranged an insulative guide sleeves, install compressed spring on the insulative guide sleeves, described compressed spring one end resists flange spiral shell
Stamper, the other end are set on insulative guide sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356530.3A CN106925848B (en) | 2017-05-16 | 2017-05-16 | Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710356530.3A CN106925848B (en) | 2017-05-16 | 2017-05-16 | Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk |
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| CN106925848A CN106925848A (en) | 2017-07-07 |
| CN106925848B true CN106925848B (en) | 2019-03-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900471A (en) * | 2017-11-24 | 2018-04-13 | 中山复盛机电有限公司 | Combined guide leading-in device applied to the processing of pore electrode discharge |
| CN110560802A (en) * | 2019-10-09 | 2019-12-13 | 大连理工大学 | Device for high-speed electric spark machining of micropores with large depth-diameter ratio |
| CN116748616B (en) * | 2023-08-15 | 2023-10-20 | 太原理工大学 | Main shaft device for machining inverted taper hole based on electric spark technology |
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| EP0229186A1 (en) * | 1985-06-25 | 1987-07-22 | Fanuc Ltd. | Wire cut electric spark machine |
| EP0176603B1 (en) * | 1984-04-07 | 1990-07-18 | Fanuc Ltd. | Device for forming an initial hole in a discharge machining apparatus |
| CN201579509U (en) * | 2009-07-22 | 2010-09-15 | 上海大量电子设备有限公司 | Guiding device applicable to wire electrodes with different diameters |
| CN102513626A (en) * | 2011-12-23 | 2012-06-27 | 清华大学 | Electrode wire rotation and feeding combined driving spindle mechanism for micro electric discharge machining |
| CN206010077U (en) * | 2016-09-10 | 2017-03-15 | 无锡微研精微机械技术有限公司 | A kind of wired main tapping of rotatory sealing |
| CN206779629U (en) * | 2017-05-16 | 2017-12-22 | 无锡微研股份有限公司 | Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07106499B2 (en) * | 1989-12-20 | 1995-11-15 | ウシオ株式会社 | Precision finishing equipment for fine holes |
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2017
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0176603B1 (en) * | 1984-04-07 | 1990-07-18 | Fanuc Ltd. | Device for forming an initial hole in a discharge machining apparatus |
| EP0229186A1 (en) * | 1985-06-25 | 1987-07-22 | Fanuc Ltd. | Wire cut electric spark machine |
| CN201579509U (en) * | 2009-07-22 | 2010-09-15 | 上海大量电子设备有限公司 | Guiding device applicable to wire electrodes with different diameters |
| CN102513626A (en) * | 2011-12-23 | 2012-06-27 | 清华大学 | Electrode wire rotation and feeding combined driving spindle mechanism for micro electric discharge machining |
| CN206010077U (en) * | 2016-09-10 | 2017-03-15 | 无锡微研精微机械技术有限公司 | A kind of wired main tapping of rotatory sealing |
| CN206779629U (en) * | 2017-05-16 | 2017-12-22 | 无锡微研股份有限公司 | Clamp the rotary sealing mechanism of different-diameter hollow tube-shaped electrode silk |
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