CN111300171A - Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole - Google Patents
Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole Download PDFInfo
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- CN111300171A CN111300171A CN202010180280.4A CN202010180280A CN111300171A CN 111300171 A CN111300171 A CN 111300171A CN 202010180280 A CN202010180280 A CN 202010180280A CN 111300171 A CN111300171 A CN 111300171A
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- China
- Prior art keywords
- honing
- vibration platform
- oil nozzle
- assisting
- column
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
Abstract
The invention discloses an ultrasonic vibration platform device for assisting in honing an engine fuel spray nozzle hole, which comprises a vibration platform switching shell, a piezoelectric transducer, an ultrasonic power supply and a fuel spray nozzle fixing piece, wherein a containing cavity is formed in the vibration platform switching shell, the piezoelectric transducer is fixed in the containing cavity, the piezoelectric transducer comprises an assisting honing column, a piezoelectric ceramic piece and an electrode piece, the piezoelectric ceramic piece is tightly and fixedly connected with the electrode piece, the piezoelectric ceramic piece is fixedly connected with the assisting honing column, the electrode piece is connected with the ultrasonic power supply, an engine fuel spray nozzle can be partially placed in the fuel spray nozzle fixing hole, and the fuel spray nozzle fixing piece is fixedly connected with the assisting honing column and presses and fixes the engine fuel spray nozzle at the upper end of the assisting honing column. The invention can drive the oil nozzle to generate high-frequency vibration, thereby improving the roughness of the hole wall of the small hole and inhibiting the generation of burrs at the outlet of the small hole in the vibration processing process.
Description
Technical Field
The invention relates to the field of processing by using an aircraft engine, in particular to an ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole.
Background
In the traditional oil nozzle hole-making process, burrs generated at the outlet end of a small hole, high hole wall roughness and large hole diameter all affect the droplet diameter, the injection angle, the combustion efficiency and the processing efficiency of fuel atomization, and the development of an aeroengine is severely restricted, so that a new processing method is needed for improving the processing efficiency and the processing quality of the small hole of the oil nozzle.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole, and aims to drive an oil nozzle to generate high-frequency vibration through the device, so that the roughness of the hole wall of a small hole is improved and the generation of burrs at the outlet of the small hole is inhibited in the vibration processing process.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an ultrasonic vibration platform device for assisting in honing an engine fuel injector hole, wherein: the ultrasonic honing device comprises a vibration platform switching shell, a piezoelectric transducer, an ultrasonic power supply and an oil nozzle fixing piece, wherein a containing cavity is formed in the vibration platform switching shell, the piezoelectric transducer is fixed in the containing cavity, the piezoelectric transducer comprises an auxiliary honing column, a piezoelectric ceramic piece and an electrode piece, the piezoelectric ceramic piece is tightly and fixedly connected with the electrode piece, the piezoelectric ceramic piece is fixedly connected with the auxiliary honing column, the electrode piece is connected with the ultrasonic power supply, the auxiliary honing column is a cylinder body with an axial through hole, the upper end of the auxiliary honing column is provided with an oil nozzle fixing hole communicated with the axial through hole, an engine oil nozzle can be partially placed in the oil nozzle fixing hole, the oil nozzle fixing piece is fixedly connected with the auxiliary honing column and presses and fixes the engine oil nozzle at the upper end of the auxiliary honing column, the engine oil nozzle is provided with an oil nozzle hole, when a honing tool is inserted into the oil nozzle hole for honing, the piezoelectric ceramic plate drives the whole piezoelectric transducer to vibrate, so that the oil nozzle hole and the honing cutter generate vibration friction.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the upper end opening of the accommodating cavity is provided with a seat groove on the inner side of the opening, the upper part of the auxiliary honing column is provided with a fixing flange, the fixing flange is seated on the seat groove in an interference fit manner, a flange gland covers the fixing flange and is fixedly connected with the rotary connection shell of the vibration platform, the fixing flange is pressed and fixed in the seat groove, and the fixing flange is used for accommodating the cavity to be sealed.
The upper surface and the lower surface in the middle of the fixed flange are provided with vibration isolation grooves, and the vibration isolation grooves can isolate the vibration transmitted by the auxiliary honing columns from the outer end of the fixed flange.
The auxiliary honing column is provided with a ceramic wafer compression ring, the piezoelectric ceramic wafer is arranged below the fixed flange, and the ceramic wafer compression ring can be sleeved on the auxiliary honing column from the lower end of the auxiliary honing column and is fixedly connected with the auxiliary honing column, so that the piezoelectric ceramic wafer is compressed and fixed between the fixed flange and the ceramic wafer compression ring.
The lower end of the auxiliary honing column penetrates out of the lower end of the vibration platform switching shell, a sealing groove is formed in the penetrating position of the vibration platform switching shell at the auxiliary honing column, a sealing ring and a sealing ring are sequentially placed in the sealing groove, the lower end of the auxiliary honing column is sealed with the vibration platform switching shell, the sealing ring and the sealing ring are tightly pressed and fixed in the sealing groove through a sealing ring pressing block, and the sealing ring pressing block is fixedly matched with the vibration platform switching shell.
A waterproof aviation plug is hermetically installed on the vibration platform adapter shell, and the electrode plate is connected with the ultrasonic power supply through the waterproof aviation plug.
Two compressed air quick connectors are arranged on the vibration platform switching shell, the compressed air quick connectors are communicated with the accommodating cavity, one of the compressed air quick connectors is connected with the air inlet pipeline, the other compressed air quick connector is connected with the air outlet pipeline, compressed air can enter the accommodating cavity from the air inlet pipeline and flows out from the air outlet pipeline, and the compressed air cools the piezoelectric ceramic piece and the electrode plate which are arranged in the accommodating cavity.
The lower end of the vibration platform switching shell is provided with a plurality of countersunk holes, and the countersunk holes are used for being matched with the fasteners to fix the vibration platform switching shell.
The invention discloses an ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole, which is a special processing mode combining ultrasonic vibration and traditional honing processing. In the ultrasonic vibration auxiliary machining process, the ultrasonic vibration device enables the tool and the workpiece to generate high-frequency relative motion, and the relative scratching effect between the abrasive particles of the tool and the surface of the workpiece can effectively improve the machining surface, reduce the cutting force and prolong the service life of the cutter. Meanwhile, the frequency and amplitude of vibration play a vital role in removing the burr of the small hole, different amplitudes and frequencies can influence the relative movement speed between the tool and the workpiece, the vibration is an important index for improving the quality of the hole wall and the burr of an outlet, and different vibration parameters are adopted to improve the small hole processing quality of the aviation oil nozzle in order to improve the performance of ultrasonic vibration in various application fields. The invention utilizes the sandwich piezoelectric transducer to drive the oil nozzle to generate high-frequency vibration, so that the relative scratching action between the tool abrasive particles and the workpiece surface can effectively improve the processing surface, reduce the cutting force, prolong the service life of the cutter and inhibit burrs at the outlet; meanwhile, the service life of the tool is prolonged, the generation of a horn mouth after machining can be reduced, the device can effectively improve the machining quality and the machining efficiency of the small hole of the oil nozzle, and the device has wide application prospect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a piezoelectric transducer;
fig. 3 is a schematic structural view of an auxiliary honing stud;
FIG. 4 is a schematic structural view of a vibration table adapter housing;
fig. 5 is a schematic diagram of an application example of the present invention.
The reference signs are: the device comprises a vibration platform adapter housing 1, a containing cavity 11, a seat groove 12, a flange gland 13, a sealing ring and a sealing ring 14, a sealing ring pressing block 15, a waterproof aviation plug 16, a compressed air quick connector 17, a counter bore 18, a piezoelectric transducer 2, an auxiliary honing column 21, a piezoelectric ceramic piece 22, an electrode piece 23, an oil nozzle fixing hole 24, a fixing flange 25, a vibration isolation groove 26, a ceramic piece pressing ring 27, an ultrasonic power supply 3, an oil nozzle fixing piece 4, an engine oil nozzle 5, an oil nozzle hole 51, a honing cutter 6 and a cutter handle 61.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the ultrasonic vibration platform device for assisting in honing the fuel injector hole of the engine mainly comprises a vibration platform adapter housing 1, a flange gland 13, a sealing ring and a sealing ring 14, a waterproof aviation plug 16, a compressed air quick connector 17, a piezoelectric transducer 2, an ultrasonic power supply 3 and other structures, wherein the piezoelectric transducer 2 is integrally a cylinder and comprises an assisting honing column 21, a piezoelectric ceramic piece 22, an electrode piece 23 and a ceramic piece pressing ring 27, wherein the piezoelectric ceramic piece 22 and the electrode piece 23 are sequentially sleeved on the assisting honing column 21, and the piezoelectric ceramic piece 22 and the electrode piece 23 are fixed by the ceramic piece pressing ring 27 and the assisting honing column 21 in a thread locking mode.
Referring to fig. 2 to 3, the auxiliary honing stud 21 has a central axial through hole structure, the axial through hole has a diameter of 6mm and is made of TC4 titanium alloy, the upper end of the auxiliary honing stud 21 has an M19 thread structure, and the upper end of the auxiliary honing stud 21 is provided with an oil nozzle fixing hole 24 having a diameter of 10mm and a depth of 6 mm. The engine oil nozzle 5 is placed in the oil nozzle fixing hole 24 at the upper end of the auxiliary honing column 21 and is screwed on the M19 thread structure by the oil nozzle fixing piece 4 to be tightly pressed and fixed; the middle of the auxiliary honing column 21 is provided with a fixing flange 25 with the diameter of 52mm and the thickness of 5mm, and the upper surface and the lower surface of the fixing flange 25 are provided with vibration isolation grooves 26 with the groove width of 2mm and the depth of 3mm for the assembly vibration damping effect of the piezoelectric transducer; the lower end of the auxiliary honing column 21 is of an M14 multiplied by 1.5 screw structure, the tail end of the screw is provided with a cylindrical structure with the diameter of 8mm and the length of 7.5mm, the bottom of the vibration platform switching shell 1 is of a through hole thread structure, and the cylindrical structure at the lower end of the auxiliary honing column 21 penetrates out of the bottom of the vibration platform switching shell 1. The diameter of the piezoelectric ceramic piece 22 is 30mm, the material is PZT-8, and the size is as follows: phi 30mm is multiplied by phi 15mm is multiplied by 5mm, and the number of the piezoelectric ceramic plates 22 is 4; the ceramic plate compression ring 27 is made of stainless steel. The O-shaped sealing ring and the sealing ring are sequentially sleeved on the thread-free part at the lower end of the screw rod of the auxiliary honing column 21 and are tightly pressed and fixed by the sealing ring pressing block 15.
The working frequency range of the ultrasonic vibration platform device for assisting in honing the engine oil nozzle hole is 19kHz-40 kHz.
The engine oil nozzle 5 is made of stainless steel, the center of the engine oil nozzle is provided with an oil nozzle hole 51 with the diameter of 0.8mm, the engine oil nozzle is installed in the oil nozzle fixing hole 24 of the auxiliary honing column 21 and is fixedly pressed by the oil nozzle fixing piece 4.
Referring to fig. 4, the vibration platform adapter housing 1 is a cylinder, made of 316L stainless steel, the top end of the vibration platform adapter housing 1 is a M54 × 1 screw thread, the seat groove 12 is provided with an annular groove for placing an O-ring, the side wall of the seat groove is provided with two M5 × 0.8 threaded holes, and the compressed air quick coupling 17 is installed in the threaded hole and connected with a compressed air pipe pump to cool the whole device. The waterproof aviation plug 16 is fixed on the outer circle side wall of the vibration platform adapter housing 1 through screws, the anode and the cathode of the waterproof aviation plug 16 are connected with the anode and the cathode of the piezoelectric transducer 2, and the ultrasonic power supply 3 provides an electric signal with the frequency of 19kHz-40kHz for the piezoelectric transducer 2.
In operation, as shown in fig. 5, the tool shank 61 rotates the honing tool 6, and the honing tool 6 penetrates through the fuel nozzle hole 51 of the engine fuel nozzle 5 and machines the side wall of the inner hole. The waterproof aviation plug 16 is connected with an ultrasonic power supply 3, the ultrasonic power supply 3 provides an ultrasonic electric signal with the frequency of 32.5 +/-0.5 kHz for an ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole, and the piezoelectric transducer 2 drives the engine oil nozzle 5 to generate vibration with the amplitude of 0-5 mu m and the frequency of 32.5 kHz; compressed air enters and exits from a compressed air quick connector 17 on the side wall of the vibration platform adapter shell 1 and is used for cooling the piezoelectric transducer 2 in the working process.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (8)
1. The utility model provides an ultrasonic vibration platform device of supplementary honing engine fuel sprayer hole which characterized by: including vibration platform switching shell (1), piezoelectric transducer (2), ultrasonic power supply (3) and nozzle mounting (4), vibration platform switching shell (1) in be formed with and hold chamber (11), piezoelectric transducer (2) be fixed in and hold chamber (11) in, piezoelectric transducer (2) including supplementary honing post (21), piezoceramics piece (22) and electrode piece (23) paste tight fixed connection, piezoceramics piece (22) and supplementary honing post (21) fixed connection, electrode piece (23) are connected with ultrasonic power supply (3), supplementary honing post (21) for having axial through hole's cylinder, nozzle fixed orifices (24) with axial through hole intercommunication are seted up to its upper end, engine nozzle (5) can partly put into nozzle fixed orifices (24), the oil nozzle fixing piece (4) is fixedly connected with the auxiliary honing column (21), the engine oil nozzle (5) is pressed and fixed at the upper end of the auxiliary honing column (21), the engine oil nozzle (5) is provided with an oil nozzle hole (51), and when the honing cutter (6) is inserted into the oil nozzle hole (51) for honing, the ultrasonic power supply (3) can provide ultrasonic electric signals for the piezoelectric ceramic piece (22) through the electrode piece (23), so that the piezoelectric ceramic piece (22) drives the whole piezoelectric transducer (2) to vibrate, and the oil nozzle hole (51) and the honing cutter (6) generate vibration friction.
2. The ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole as claimed in claim 1, wherein: the honing tool is characterized in that the upper end of the accommodating cavity (11) is provided with an opening, a seat groove (12) is formed in the inner side of the opening, a fixing flange (25) is arranged on the upper portion of the auxiliary honing column (21), the fixing flange (25) is seated on the seat groove (12) in an interference fit mode, a flange gland (13) covers the fixing flange (25) and is fixedly connected with the vibration platform adapter shell (1), the fixing flange (25) is pressed and fixed in the seat groove (12), and the accommodating cavity (11) is sealed by the fixing flange (25).
3. The ultrasonic vibration platform device for assisting in honing the oil nozzle hole of the engine as claimed in claim 2, wherein: the upper surface and the lower surface of the middle part of the fixed flange (25) are respectively provided with a vibration isolation groove (26), and the vibration isolation grooves (26) can isolate the vibration transmitted by the auxiliary honing columns (21) from the outer end of the fixed flange (25).
4. The ultrasonic vibration platform device for assisting in honing the oil nozzle hole of the engine as claimed in claim 3, wherein: the auxiliary honing column (21) is provided with a ceramic wafer compression ring (27), the piezoelectric ceramic wafer (22) is arranged below the fixing flange (25), the ceramic wafer compression ring (27) can be sleeved on the auxiliary honing column (21) from the lower end of the auxiliary honing column (21) and is fixedly connected with the auxiliary honing column (21), and the piezoelectric ceramic wafer (22) is compressed and fixed between the fixing flange (25) and the ceramic wafer compression ring (27).
5. The ultrasonic vibration platform device for assisting in honing the oil nozzle hole of the engine as claimed in claim 4, wherein: the lower extreme of supplementary honing post (21) wear out from the lower extreme of vibration platform switching shell (1), vibration platform switching shell (1) offer the seal groove in the department of wearing out of supplementary honing post (21), put into sealing ring and sealing washer (14) in proper order in the seal groove, make supplementary honing post (21) lower extreme and vibration platform switching shell (1) sealed, rethread sealing ring briquetting (15) compress tightly sealing ring and sealing washer (14) and fix in the seal groove, sealing ring briquetting (15) and vibration platform switching shell (1) fixed coordination.
6. The ultrasonic vibration platform device for assisting in honing the oil nozzle hole of the engine as claimed in claim 5, wherein: the vibration platform adapter shell (1) is provided with a waterproof aviation plug (16) in a sealing mode, and the electrode plate (23) is connected with the ultrasonic power supply (3) through the waterproof aviation plug (16).
7. The ultrasonic vibration platform device for assisting in honing the oil nozzle hole of the engine as claimed in claim 6, wherein: vibration platform switching shell (1) on seted up two compressed air quick-operation joint (17), compressed air quick-operation joint (17) with hold chamber (11) intercommunication, one of them compressed air quick-operation joint (17) are connected with admission line, another compressed air quick-operation joint (17) with give vent to anger the pipe connection, compressed air can follow admission line entering and hold chamber (11) to from the pipeline outflow of giving vent to anger, to piezoceramics piece (22) and electrode slice (23) cooling in holding chamber (11) in placing.
8. The ultrasonic vibration platform device for assisting in honing an engine oil nozzle hole of claim 7, wherein: the lower end of the vibration platform switching shell (1) is provided with a plurality of counter bores (18), and the counter bores (18) are used for being matched with a fastening piece to fix the vibration platform switching shell (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180280.4A CN111300171A (en) | 2020-03-16 | 2020-03-16 | Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole |
| PCT/CN2020/105365 WO2021184635A1 (en) | 2020-03-16 | 2020-07-29 | Ultrasonic vibration platform device for assisting in honing of engine oil nozzle hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180280.4A CN111300171A (en) | 2020-03-16 | 2020-03-16 | Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole |
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| Publication Number | Publication Date |
|---|---|
| CN111300171A true CN111300171A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010180280.4A Pending CN111300171A (en) | 2020-03-16 | 2020-03-16 | Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole |
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| CN (1) | CN111300171A (en) |
| WO (1) | WO2021184635A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184635A1 (en) * | 2020-03-16 | 2021-09-23 | 江苏集萃精密制造研究院有限公司 | Ultrasonic vibration platform device for assisting in honing of engine oil nozzle hole |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102275B (en) * | 2021-11-19 | 2023-03-21 | 南京航空航天大学 | Device suitable for gear ultrasonic vibration auxiliary grinding and operation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008155287A (en) * | 2006-12-20 | 2008-07-10 | Daitron Technology Co Ltd | Workpiece grinding device and workpiece grinding method |
| CN103286682B (en) * | 2013-05-08 | 2015-10-21 | 吉林大学 | The Test specimen fixture of ultrasonic wave vibration assisted milling/polishing |
| CN204413769U (en) * | 2015-01-08 | 2015-06-24 | 河南理工大学 | A kind of three-D ultrasonic vibration ELID internal grinding experimental provision |
| CN109093456B (en) * | 2018-09-28 | 2020-06-26 | 平顶山学院 | Test method of multifunctional ultrasonic finishing test device |
| CN110281088A (en) * | 2019-06-21 | 2019-09-27 | 北京邮电大学 | Intelligence Ultrasound scroll saw |
| CN111300171A (en) * | 2020-03-16 | 2020-06-19 | 南京浦航机械科技开发有限公司 | Ultrasonic vibration platform device for assisting honing of engine fuel spray nozzle hole |
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2020
- 2020-03-16 CN CN202010180280.4A patent/CN111300171A/en active Pending
- 2020-07-29 WO PCT/CN2020/105365 patent/WO2021184635A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184635A1 (en) * | 2020-03-16 | 2021-09-23 | 江苏集萃精密制造研究院有限公司 | Ultrasonic vibration platform device for assisting in honing of engine oil nozzle hole |
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| WO2021184635A1 (en) | 2021-09-23 |
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