CN114888372B - Machining device and method for cooling holes on installation edge of low-vortex guider - Google Patents
Machining device and method for cooling holes on installation edge of low-vortex guider Download PDFInfo
- Publication number
- CN114888372B CN114888372B CN202210753139.8A CN202210753139A CN114888372B CN 114888372 B CN114888372 B CN 114888372B CN 202210753139 A CN202210753139 A CN 202210753139A CN 114888372 B CN114888372 B CN 114888372B
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- guide
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- shaft
- electrode
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003754 machining Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 title abstract description 14
- 238000004080 punching Methods 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 4
- 238000010892 electric spark Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 101150103383 phiA gene Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to the technical field of aeroengine guide machining, in particular to a machining device and method for a cooling hole on a mounting edge of a low-vortex guide. According to the machining device for the cooling hole on the installation side of the low-vortex guide, the guide is quickly positioned by arranging the axially arranged clamp, the clamp is simple and easy to detach and install, the guide can be quickly aligned after being installed, and meanwhile, the design method of the secondary device can be used for electric machining of the annular piece.
Description
Technical Field
The invention relates to the technical field of aero-engine guide machining, in particular to a machining device and method for a cooling hole of a low-vortex guide mounting edge.
Background
At present, in order to effectively circulate the air flow of a low-pressure turbine guide device, the novel aeroengine increases the thrust, evenly distributed group holes are designed on the installation edge of the guide device, the group holes are in a complex space angle and are consistent with the direction of a guide blade, and the novel aeroengine is required to be processed on a six-axis electric spark machine tool.
The guide has high cost, long manufacturing period and no test piece, and an effective program simulation method is designed before the electric spark machining of the small holes on the mounting edge to verify that the angle and the size are correct, so that the scrapping of parts due to damage and incorrect size during machining is avoided.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device and a method for processing a cooling hole at the installation side of a low vortex guider.
The invention is realized by the following technical scheme:
the utility model provides a processingequipment of low vortex director installation limit cooling hole, includes a plurality of anchor clamps that set up along processing equipment chassis circumference, anchor clamps are placed on the equipment chassis, anchor clamps include installation piece, first locating pin and second locating pin set up respectively in the top and the bottom of installation piece, first locating pin is tangent with the second radial location size ΦB of director, the second locating pin is tangent with equipment chassis external diameter ΦA.
Preferably, the clamp is provided with at least three
Preferably, the mounting block, the first positioning pin and the second positioning pin are integrally formed.
Preferably, the first positioning pin and the second positioning pin are detachably connected with the mounting block.
Preferably, the first positioning pin is detachably connected with the guide.
Preferably, the second positioning pin is detachably connected with the equipment chassis.
Preferably, the bottom of the installation block is provided with a positioning strip, and the positioning strip is matched with a clamping groove on the equipment chassis.
A processing method of a cooling hole on the installation side of a low vortex guider adopts a processing device of the cooling hole on the installation side of the low vortex guider, and comprises the following steps:
s1, installing a plurality of clamps; the first locating pin is tangential to the guide in the radial direction, and the second locating pin is tangential to the outer diameter of the chassis of the equipment;
s2, aligning and checking equipment;
s3, punching according to the machining thickness of the guide.
Preferably, in S2, a cross check method is used for the check.
Preferably, in S3, one hole is punched every 1 ° of rotation when punching.
Compared with the prior art, the invention has the following beneficial effects:
according to the machining device for the cooling hole on the installation side of the low-vortex guide, the guide is quickly positioned by arranging the axially arranged clamp, the clamp is simple and easy to detach and install, the guide can be quickly aligned after being installed, and meanwhile, the design method of the secondary device can be used for electric machining of the annular piece.
According to the machining method of the cooling hole on the mounting side of the low-pressure turbine guide, before the part is machined, the cross checking method is adopted, so that the low-pressure turbine guide is prevented from being scrapped due to the out-of-tolerance size in the machining process.
Drawings
FIG. 1 is a front view of a clamp structure;
FIG. 2 is a left side view of the clamp structure;
FIG. 3 is a top view of the clamp device structure;
FIG. 4 is a top view of the fixture mounted on the equipment chassis;
FIG. 5 is a top view of a low vortex finder;
FIG. 6 is a diagrammatic view of a clamp-on machine and low pressure pilot;
FIG. 7 is a schematic view of the A-axis electrode tangential to the guide mounting edge;
fig. 8 is a schematic diagram of a verification process.
In the figure, 1, a mounting block; 2. a first positioning pin; 3. a second positioning pin; 4. a positioning strip; 5. an equipment chassis; 6. a clamping groove; 7. a guide.
Detailed Description
The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
The invention discloses a machining device for a cooling hole of a mounting edge of a low vortex guider, which comprises a plurality of clamps arranged along the circumferential direction of a machining equipment chassis, wherein the clamps are placed on the equipment chassis, and at least three clamps are arranged.
The fixture comprises a mounting block 1, a first positioning pin 2 and a second positioning pin 3, wherein the first positioning pin 2 and the second positioning pin 3 are respectively arranged at the top and the bottom of the mounting block 1, the first positioning pin 2 is tangential to a second radial positioning dimension phiB of a guide 7, the second positioning pin 3 is tangential to the outer diameter phiA of the equipment chassis 5, namely, the distance A=phiA-phiB between the first positioning pin 2 and the second positioning pin 3.
The bottom of the mounting block is provided with a positioning strip 4, and referring to fig. 4, 5 and 6, the positioning strip is matched with a clamping groove 6 on the equipment chassis 5, and the width of the positioning strip 4 and the equipment clamping groove is the size B.
Example 1
The mounting block 1, the first positioning pin 2 and the second positioning pin 3 are integrally formed.
Example 2
The first positioning pin 2 and the second positioning pin 3 are detachably connected with the mounting block 1. The first positioning pin 2 is detachably connected with the guide 7. The second locating pin 3 is detachably connected with the equipment chassis 3.
A processing method of a cooling hole on the installation side of a low vortex guider adopts a processing device of the cooling hole on the installation side of the low vortex guider, and comprises the following steps:
s1, referring to FIGS. 6 and 7, a plurality of clamps are installed; the first locating pin 2 is tangential to the guide 7 in the radial direction, and the second locating pin is tangential to the outer diameter of the chassis of the equipment;
s2, aligning equipment and checking by adopting a cross checking method, referring to FIG. 8, specifically comprising the following steps:
(1) After alignment, rotating a machine tool A (electrode with a cutter) and a machine tool B by 90 degrees, resetting a Y axis, moving an X axis to a mounting side of a guide 7 visually, and moving the Y axis back and forth to enable an A axis electrode (electrode size is phi E) to be tangential to the mounting side phi C of the guide 7, confirming whether the Y axis is reset, observing that the A axis electrode is tangential to the mounting side phi C of the guide 7 in the process of rotating the C axis by 360 degrees, as shown in fig. 7;
(2) And then moving the X axis to enable the electrode on the axis A to move inwards towards the guide 7 by the following distance: phi C-phi D+phi E/2mm is the radial dimension phi Dmm of the position of the air film hole at the mounting side;
(3) After the A, B, X, Z shaft is zeroed, the B shaft is rotated for 20 degrees, then the A shaft is rotated for 45 degrees, the X, Z shaft is moved to enable the electrode to move to the phi D position, finally the C shaft is rotated for 90 degrees for 4 times to form 360 degrees, the electrode is confirmed to be on the phi C in the rotating process, and a cross checking method is formed, as shown in fig. 8, and attention is paid to: the moving process moves to the Y axis.
S3, punching according to the machining thickness of the guide, and punching one hole every 1 DEG of rotation.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the technical solution of the present invention in any way, and it should be understood that the technical solution can be modified and replaced in several ways without departing from the spirit and principle of the present invention, and these modifications and substitutions are also included in the protection scope of the claims.
Claims (8)
1. The machining method for the low-vortex-induced guide mounting side cooling hole is characterized by comprising a plurality of clamps arranged along the circumferential direction of a machining equipment chassis, wherein the clamps are arranged on the equipment chassis and comprise a mounting block, a first positioning pin and a second positioning pin, the first positioning pin and the second positioning pin are respectively arranged at the top and the bottom of the mounting block, the first positioning pin is tangential with a second radial positioning dimension phi B of the guide, and the second positioning pin is tangential with the outer diameter phi A of the equipment chassis;
the processing method comprises the following steps:
s1, installing a plurality of clamps; the first locating pin is tangential to the guide in the radial direction, and the second locating pin is tangential to the outer diameter of the chassis of the equipment;
s2, aligning and checking equipment;
(1) After alignment, rotating a A, B shaft of the machine tool with the cutter electrode by 90 degrees, resetting a Y shaft, moving an X shaft to a mounting side of a guide (7) visually, and moving the Y shaft back and forth to enable an A shaft electrode to be tangential with the mounting side phi C of the guide (7), confirming whether the Y shaft resetting is displayed, wherein the electrode size is phi E, and observing that the A shaft electrode is tangential with the mounting side phi C of the guide (7) in the process of rotating the C shaft by 360 degrees;
(2) And then moving the X axis to enable the electrode on the axis A to move inwards towards the guide (7) by the following distance: phi C-phi D+phi E/2mm is the radial dimension phi Dmm of the position of the air film hole at the mounting side;
(3) After the A, B, X, Z shaft is zeroed, the B shaft rotates 20 degrees, the A shaft rotates 45 degrees, the X, Z shaft moves the electrode to the phi D position, and finally the C shaft rotates for 90 degrees for 4 times to form 360 degrees, and the electrode is confirmed to be on the phi C in the rotating process to form a cross checking method;
s3, punching according to the machining thickness of the guide.
2. The method of claim 1, wherein the jig is provided with at least three.
3. The method of claim 1, wherein the mounting block, the first locating pin and the second locating pin are integrally formed.
4. The method of claim 1, wherein the first locating pin and the second locating pin are detachably connected to the mounting block.
5. The method of claim 1, wherein the first locating pin is removably coupled to the pilot.
6. The method of claim 1, wherein the second locating pin is removably coupled to the equipment chassis.
7. The method for machining the cooling hole on the mounting side of the low-vortex guide according to claim 1, wherein a positioning strip is arranged at the bottom of the mounting block and is matched with a clamping groove on the equipment chassis.
8. The method of manufacturing a cooling hole for a mounting side of a low vortex guide according to claim 1, wherein in S3, one hole is punched every 1 ° of rotation during punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753139.8A CN114888372B (en) | 2022-06-29 | 2022-06-29 | Machining device and method for cooling holes on installation edge of low-vortex guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753139.8A CN114888372B (en) | 2022-06-29 | 2022-06-29 | Machining device and method for cooling holes on installation edge of low-vortex guider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114888372A CN114888372A (en) | 2022-08-12 |
| CN114888372B true CN114888372B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210753139.8A Active CN114888372B (en) | 2022-06-29 | 2022-06-29 | Machining device and method for cooling holes on installation edge of low-vortex guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114888372B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6371468B1 (en) * | 1999-12-17 | 2002-04-16 | United Technologies Research Center | Universal workpiece holder |
| CN204621124U (en) * | 2015-03-17 | 2015-09-09 | 瑞麦（宁波）机械设计制造有限公司 | A kind of clipping chuck of split being suitable for annular workpieces |
| CN106181477A (en) * | 2016-08-16 | 2016-12-07 | 中航湖南通用航空发动机有限公司 | The processing method of special-shaped groove between a kind of assembling clamp and stator blade |
| CN213827086U (en) * | 2020-11-04 | 2021-07-30 | 浙江省军工集团有限公司 | Positioning fixture for processing end face of annular disc part |
| CN214922445U (en) * | 2021-05-06 | 2021-11-30 | 大连恒基数控机床有限公司 | Special clamp for oil baffle ring products |
-
2022
- 2022-06-29 CN CN202210753139.8A patent/CN114888372B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6371468B1 (en) * | 1999-12-17 | 2002-04-16 | United Technologies Research Center | Universal workpiece holder |
| CN204621124U (en) * | 2015-03-17 | 2015-09-09 | 瑞麦（宁波）机械设计制造有限公司 | A kind of clipping chuck of split being suitable for annular workpieces |
| CN106181477A (en) * | 2016-08-16 | 2016-12-07 | 中航湖南通用航空发动机有限公司 | The processing method of special-shaped groove between a kind of assembling clamp and stator blade |
| CN213827086U (en) * | 2020-11-04 | 2021-07-30 | 浙江省军工集团有限公司 | Positioning fixture for processing end face of annular disc part |
| CN214922445U (en) * | 2021-05-06 | 2021-11-30 | 大连恒基数控机床有限公司 | Special clamp for oil baffle ring products |
Non-Patent Citations (1)
| Title |
|---|
| 外环块数控电火花加工工艺研究;王德新 等;电加工与模具(05);57-60 * |
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| Publication number | Publication date |
|---|---|
| CN114888372A (en) | 2022-08-12 |
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