CN105856024B - A kind of high-precision nozzle ring throat polishing platform and polishing process - Google Patents
A kind of high-precision nozzle ring throat polishing platform and polishing process Download PDFInfo
- Publication number
- CN105856024B CN105856024B CN201610051970.3A CN201610051970A CN105856024B CN 105856024 B CN105856024 B CN 105856024B CN 201610051970 A CN201610051970 A CN 201610051970A CN 105856024 B CN105856024 B CN 105856024B
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- Prior art keywords
- throat
- polishing
- control device
- precision
- guider
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Classifications
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- 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
-
- 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
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A kind of high-precision nozzle ring throat polishing platform and polishing process, it is mainly used in fixation air pressure gun track, the quantifiable workbench of guider throat polishing of aero-engine；A kind of high-precision guider throat polishing workbench of the present invention, by throat's normal direction polishing track control device, throat, radially polishing track control device, throat's grinding angle control device, guider clamping adjusting apparatus, high-precision limited block form；The platform designed by foregoing invention can control air pressure gun throat grinding angle/polishing amount, throat's normal direction polishing track, throat radially polishing track, improve air pressure gun polishing precision, the uniformity of blade throat, so as to reduce the pitot loss of polishing guider, improve engine performance, and reduce manual polishing difficulty, part rejection rate, the operating platform can be widely applied to the adjustment of each aero-turbine guider throat opening area, and not limited by factors such as guide material, cooling/non-cooled mode, monolithic/multi-joint/monolithic constructions.
Description
Technical field
The present invention relates to a kind of high accuracy (polishing precision reaches 0.02mm) nozzle ring throat polishing platform and polishing side
A kind of method, and in particular to workbench for carrying out throat opening area adjustment to aero-turbine guider using air pressure gun.
Background technology
Because each part of aero-engine has a manufacture deviation in process of production, assemble its performance after complete machine and be unable to reach and set
Meter requires, need to carry out engine performance debugging, and maximally efficient method is adjustment throat area of turbine guide device, general at present
By the way of the turbine nozzle vane packet, break tail method or the turbine nozzle vane throat of polishing at mode.Break tail method tune
Whole throat area of turbine guide device makes blade trailing edge deform so as to change nozzle ring generally by applied external force
Throat opening area, but this method is applied to that material hardness is low and non-refrigerated monoblock type guider, application are limited.The method of dividision into groups
Because that need to produce more molds, cost is higher.Mode at polishing turbine nozzle vane throat is simple to operate, and not by guider
The factors such as material, cooling/non-cooled mode, monolithic/multi-joint/monolithic construction limit, and application is wider.Polishing nozzle ring leaf
Piece throat is often manual operation, and its instrument is air pressure gun, and because turbine is directed to cast member, material hardness is big, and air pressure gun bistrique is at a high speed
Rotation, air pressure gun is difficult to hold, and with feeling to be operated, air pressure gun polishing direction, throat's polishing amount are difficult to hold worker in adjustment,
Three-dimensional coordinates measurement need to be repeated, processing efficiency is low, because manual polishing causes between blade, different the uneven of Ye Gao throats causes
Guider loss increase, and then engine performance is influenceed, and often there is the excessive situation for causing part rejection of polishing, increase boat
Empty reseach of engine cost and cycle.
The content of the invention
The technology of the present invention solves problem：A kind of overcome the deficiencies in the prior art, there is provided high-precision nozzle ring throat
Polishing platform and polishing process, when solving manually to adjust using air pressure gun progress nozzle ring throat, polishing direction, throat's polishing
Amount, which is difficult to hold, to be caused between blade, the problem of causing part rejection after the inhomogeneities of different Ye Gao throats, and polishing excess,
Improve polishing control accuracy and grinding efficiency.
The technology of the present invention solution：A kind of high-precision nozzle ring throat polishing platform, including：Throat's normal direction polishing
Track control device, throat's radial direction polishing track control device, throat's grinding angle control device, guider clamping adjusting apparatus
With high-precision limited block；Air pressure gun is fixed on above throat's grinding angle control device；Throat's normal direction polishing track control device
Band polishing platform base, is fixed on steel construction desktop by platform base of polishing, on throat's normal direction polishing track control device
It is provided with guide rail；Radially polishing track control device is assemblied in throat's normal direction polishing TRAJECTORY CONTROL for high-precision limited block and throat
On the guide rail of device；High-precision limited block is located at throat radially polishing track control device rear；Throat's radially polishing track control
Device processed is assemblied in above throat's normal direction polishing track control device, and throat radially uses hydraulic pressure inside polishing track control device
Decline gear bicylindrical bar elevating mechanism, by rocking bar carry out lift adjustment, pass through rocking bar adjust air pressure gun bicylindrical bar
Height, bicylindrical bar structure can effectively ensure that the intensity and concentricity of governor motion；Throat's grinding angle control device assembling
Above the elevating mechanism of the bicylindrical bar of throat's radial direction polishing track control device；Guider clamping adjusting apparatus, which is fixed on, beats
Grind on platform base, positioned at throat's normal direction polishing track control device side.
The guide rail set on throat's normal direction polishing track control device is trapezoidal.
The guide rail surface spraying of wearable coating simultaneously has fabulous flatness (flatness is not more than 0.02mm).The larynx
Angle enlargement geared system and angle measurement unit are set in portion's grinding angle control device, and can be shown in real time by liquid crystal display
Show.
High precision displacement induction measurement devices are set in the high-precision limited block, and real-time display is carried out by liquid crystal display.
Rotating disk with a scale is set in the guider clamping adjusting apparatus, turntable rotation is driven by knob.
The present invention method be：According to pneumatic design it needs to be determined that the throat's polishing amount and grinding angle (air pressure gun of guider
The angle of head and engine front)；Device is directed to be fixed on by clampings such as screws on the rotating disk of guider clamping adjusting apparatus,
Can by knob adjust rotating disk make guider trailing edge vertical with table top, i.e., guider trailing edge with it is radial parallel；Throat's grinding angle
Control device band angle liquid crystal digital display function, air pressure gun is fixed on into adjustment knob above throat's grinding angle control device makes
After air pressure gun head to grinding angle required value and fastened；Inside is the elevating mechanism of bicylindrical bar, bicylindrical bar center and footpath
To parallel, the height of the rotary threaded mechanism of the bicylindrical bar of installation air pressure gun is adjusted by rocking bar, so as to control throat radially
Polishing track；The ladder type guide rail of throat normal direction polishing track control device is used to fixing air pressure gun and polished track in the normal direction of throat,
Ladder type guide rail is parallel with front, and setting high precision displacement sensing so as to control throat's normal direction polishing track, in high-precision limited block surveys
Device is measured, after air pressure gun head contacts with guider trailing edge, radially polishing track control device contacts high-precision limited block with throat
And high-precision limited block is anchored on and beaten in normal direction to polishing amount position is designed by zero setting, mobile high-precision limited block with knob
On the terraced font guide rail for grinding track control device；The air pressure gun head of appropriate length need to be selected during polishing, the length of air pressure gun head must be big
Width in leaf pelvic surface of sacrum Sanding Area, promoting throat, radially polishing track control device makes air pressure gun head contacting guide trailing edge, opens
Source of the gas drive air pressure gun head high-speed rotation, and up and down repeatedly shake rocking bar make air pressure gun head prolong radially move up and down, until throat radially
Track control device of polishing contacts high-precision limited block, then guider trailing edge throat adjustment amount reaches polishing required value, so as to reach
To the purpose of control throat polishing amount.When another blade of the guider that need to polish, will be led by the adjustment knob on clamping rotating disk
To device rotation 360/n degree (n is the blade quantity of domain guider), and repeat aforesaid operations process.
The present invention compared with prior art the advantages of be：The present invention proposes one kind using air pressure gun to guider throat opening area
The operating platform polished, it can control air pressure gun throat grinding angle and polishing amount, throat's normal direction polishing track, throat radially
Polishing track, improve the polishing precision and grinding efficiency of air pressure gun, the uniformity of blade throat, so as to reduce polishing guider
Pitot loss, engine performance is improved, and reduce manual polishing difficulty, part rejection rate, the operating platform can be widely applied to
The adjustment of each aero-turbine guider throat opening area, and not by guide material, cooling/non-cooled mode, monolithic/more
The factors such as connection/monolithic construction limit.
Brief description of the drawings
Fig. 1 is air pressure gun polishing fundamental diagram；
Fig. 2 is a kind of high-precision nozzle ring throat polishing platform front view of the present invention；
Fig. 3 is a kind of high-precision nozzle ring throat polishing platform side view of the present invention.
1. engine axis, (cartesian coordinate system that part modeling is established, front are vertical with engine axis to 2. fronts
Line, front and engine axis composition X-Y plane), 3. stator blades, 4. air pressure guns, 5. air pressure gun heads, the polishing motion of 6. air pressure guns
Direction, 7. throat's normal direction polishing track control devices, radially polishing track control device, the adjustment of 9. guider clampings fill for 8. throats
Put, 10. throat's grinding angle control devices, 11. grinding angles adjustment knob, 12. high-precision limited blocks, the fastening of 13. limited blocks
Knob, 14. guiders, 15. rocking bars, 16. polishing platform bases, 17. limited block displacement LCDs, 18. polishing angles
Spend LCDs, 19. steel construction desktops, 20. guider clamping rotating disks adjustment knob, 21. ladder type guide rails, 22. bicylindrical bars
Elevating mechanism, 23. radially.
Embodiment
As shown in figure 1, air pressure gun polishing operation principle is：When the air pressure gun of air pressure gun 4 first 5 with the grinding angle α of determination with being oriented to
After device blade 3 contacts, open gas source switch air pressure gun first 5 and rotate at a high speed, dynamic air pressure gun 4 is pushed along air pressure gun polishing direction 6 with certain
During motion, the material that air pressure gun first 5 is directed to the throat's contact position of device blade 3 eliminates, so as to reach adjustment guider 14 throat face
Long-pending purpose.
As shown in Figure 2,3, high-precision nozzle ring throat of the invention polishing platform is by throat's normal direction polishing track control
Device 7 processed, throat radially polishing track control device 8, guider clamping adjusting apparatus 9, throat's grinding angle control device 10
Formed with high-precision limited block 12.Throat's normal direction polishes track control device 7 with base, is fixed on steel construction desktop by base
On 19；High-precision limited block 12 is assemblied on throat's normal direction polishing track of track control device 7；Throat's radial direction polishing TRAJECTORY CONTROL
Device 8 is assemblied in the top of throat's normal direction polishing track control device 7；Throat's grinding angle control device 10 is assemblied in throat radially
The top of polishing track control device 8；Guider clamping adjusting apparatus 9 is fixed on polishing platform base, and positioned at throat, normal direction is beaten
Grind the side of track control device 7.
Throat's normal direction polishing track control device 7 is with polishing platform base 16, and by polishing, platform base 16 is fixed on steel
On structure desk 19, ladder type guide rail 21 is set thereon, ladder type guide rail 21 is parallel with front, and ladder type guide material selects high intensity not
Become rusty Steel material, and in surface spraying wear-resistant coating and has fabulous flatness (flatness is not less than 0.02mm), ensures throat
The durability of normal direction polishing track control device 7, throat's normal direction polishing track can effectively be controlled by above-mentioned measure.
High-precision limited block 12 (corresponding with measurement induction precision 0.002mm) and throat's radial direction polishing track control device 8
It is assemblied in the trapezoidal rails 21 of throat's normal direction polishing track control device 7, high-precision limited block 12 is located at throat and radially polished
After track control device 8, set high precision position measuring system in high-precision limited block 12, measurement induction precision up to 0.002mm,
Its displacement can real-time display in limited block displacement LCDs 17, tightening limited block tightening knob 13 can be by height
Precision limited block 12 is fixed on the optional position of trapezoidal rails 21.
Radially polishing track control device 8 is assemblied in the top of throat's normal direction polishing track control device 7 for throat, and inside uses
The elevating mechanism 22 of the bicylindrical bar of fluid pressure type micro-cell electron capture detector, bicylindrical bar select high-strength stainless steel material, its center and radial direction
23 is parallel, and the height of the bicylindrical bar of air pressure gun is adjusted by rocking bar 15, and bicylindrical bar structure can effectively ensure that the strong of governor motion
Degree and concentricity, so as to reach the purpose of effectively control radial direction polishing track.
Throat's grinding angle control device 10 is assemblied in the lifting of the bicylindrical bar of throat's radial direction polishing track control device 8
The top of mechanism 22, angle enlargement geared system and angle measurement unit are inside set, throat's grinding angle control device 10 is with polishing
Angle LCDs 18, air pressure gun 5 can be fixed on larynx by adjustment angle real-time display in grinding angle LCDs 18
The top of portion's grinding angle control device 10, it is 0 degree when air pressure gun is parallel with 5 fronts, regulation grinding angle adjustment knob 22 makes air pressure gun
Reach to grinding angle required value and fastened, so as to reach the purpose of control air pressure gun throat grinding angle.
Guider clamping adjusting apparatus 9 is fixed on polishing platform base 16, to exclude because the flatness of steel construction desktop 19 is low
Cause polishing to deviate required value, be provided with rotating disk with a scale, guider 14 is fixed on rotating disk by clampings such as screws, single
Piece/multi-joint/monoblock type guider, make the trailing edge of guider 14 and table top by adjusting guider clamping rotating disk adjustment knob 20
Vertically, i.e., it is parallel with radially 23.
Throat is promoted during polishing, and radially polishing track control device 8 makes the first trailing edge of 5 contacting guide 14 of air pressure gun, opens source of the gas
First 5 high-speed rotation of air pressure gun is driven, and shaking rocking bar 15 repeatedly up and down makes air pressure gun first 5 radially 23 move up and down, until throat footpath
The high-precision limited block after fastening is contacted to polishing track control device 8, then guider trailing edge throat adjustment amount reaches polishing and wanted
Evaluation, so as to reach the purpose of control throat polishing amount.When need to polish 14 another blade of guider when, by clamping rotating disk
Guider clamping rotating disk adjustment knob 20 is directed to device 14 and rotates 360/n degree, and n is the blade quantity of domain guider, and is repeated
Aforesaid operations process.
, only need to be by rocking bar 15, high accuracy if the exit flow direction of nozzle ring 14 is located at 6 opposite side of engine axis
The installation site of limited block 12 is readjusted, and rocking bar 15 is installed on throat's radially polishing other end of track control device 8, high accuracy limit
Position block 12 is assemblied in the front of throat's radial direction polishing track control device 8, repeats said process (1)-(3).
It is oriented to by the rational design of above-mentioned each device, a kind of high-precision turbine integrated with reference to suitable material selection
Device throat polishing platform and polishing process design, it can effectively control air pressure gun throat grinding angle and polishing amount, throat's normal direction polishing
Track, throat's radial direction polishing track, the polishing precision for making to carry out the polishing of guider throat using air pressure gun reaches 0.02mm, and exists
It is applied and verifies during many types of aero-engine guider throat opening area adjustment.
Above example is provided just for the sake of the description purpose of the present invention, and is not intended to limit the scope of the present invention.This
The scope of invention is defined by the following claims.The various equivalent substitutions that do not depart from spirit and principles of the present invention and make and repair
Change, all should cover within the scope of the present invention.
Claims (7)
- A kind of 1. high-precision nozzle ring throat polishing platform, it is characterised in that：Including throat's normal direction polishing TRAJECTORY CONTROL dress Put, radially polishing track control device, throat's grinding angle control device, guider clamping adjusting apparatus and high accuracy limit for throat Position block；Air pressure gun is fixed on above throat's grinding angle control device；Throat's normal direction polishing track control device band polishing platform Base, it is fixed on by platform base of polishing on steel construction desktop, guide rail is provided with throat's normal direction polishing track control device； Radially polishing track control device is assemblied on the guide rail of throat's normal direction polishing track control device for high-precision limited block and throat； High-precision limited block is located at throat radially polishing track control device rear；Radially polishing track control device is assemblied in larynx for throat Above portion's normal direction polishing track control device, throat is radially using double circles of fluid pressure type micro-cell electron capture detector inside polishing track control device The elevating mechanism of mast, the lift adjustment of the height of bicylindrical bar is carried out by rocking bar, and bicylindrical bar structure can effectively ensure that tune The intensity and concentricity of mechanism are saved, the both ends of throat's radial direction polishing track control device can install rocking bar；Throat's grinding angle Control device is assemblied in above the elevating mechanism of the bicylindrical bar of throat's radial direction polishing track control device；Guider clamping adjusts Device is fixed on polishing platform base, positioned at throat's normal direction polishing track control device side.
- A kind of 2. high-precision nozzle ring throat polishing platform according to claim 1, it is characterised in that：The throat The guide rail set on normal direction polishing track control device is trapezoidal.
- A kind of 3. high-precision nozzle ring throat polishing platform according to claim 1 or 2, it is characterised in that：It is described Guide rail surface spraying of wearable coating simultaneously has fabulous flatness, and flatness is not more than 0.02mm.
- A kind of 4. high-precision nozzle ring throat polishing platform according to claim 1, it is characterised in that：The throat Angle enlargement geared system, fastener and angle measurement unit are set in grinding angle control device, and can be entered by liquid crystal display Row real-time display.
- A kind of 5. high-precision nozzle ring throat polishing platform according to claim 1, it is characterised in that：It is described high-precision High precision displacement induction measurement devices are set in degree limited block, measurement induction precision reaches 0.002mm, and is carried out in real time by liquid crystal display Display.
- A kind of 6. high-precision nozzle ring throat polishing platform according to claim 1, it is characterised in that：The guiding Rotating disk with a scale is set in device clamping adjusting apparatus, turntable rotation is driven by knob.
- 7. a kind of usage right requires the high-precision nozzle ring throat polishing process that 1-6 any one of works as, it is characterised in that Realize that step is as follows：(1) according to pneumatic design it needs to be determined that the throat's polishing amount and grinding angle of guider, grinding angle be air pressure gun head with The angle of engine front；(2) it is directed to device to be fixed on the rotating disk of guider clamping adjusting apparatus, adjusting rotating disk by knob makes guider trailing edge It is vertical with table top；Throat's grinding angle control device band angle liquid crystal digital display function, air pressure gun is fixed on throat's polishing angle Adjustment knob makes air pressure gun head to grinding angle required value above degree control device；Inside is the elevating mechanism of bicylindrical bar, is passed through The height of the rotary threaded mechanism of the bicylindrical bar of rocking bar regulation installation air pressure gun；The ladder of throat's normal direction polishing track control device Type guide rail sets high precision displacement measurement of inductance dress for fixing air pressure gun in the normal direction polishing track of throat, high-precision limited block Put, after air pressure gun head contacts with guider trailing edge, radially polishing track control device contacts juxtaposition to high-precision limited block with throat Zero, high-precision limited block is anchored in normal direction polishing rail by mobile high-precision limited block to polishing amount position is designed, with knob On the terraced font guide rail of mark control device；(3) throat is promoted when polishing, and radially polishing track control device makes air pressure gun head contacting guide trailing edge, opens source of the gas driving Air pressure gun head high-speed rotation, and up and down repeatedly shake rocking bar make air pressure gun head prolong radially move up and down, until throat radially polishing track Control device contacts high-precision limited block, then guider trailing edge throat adjustment amount reaches polishing required value；When the guider that need to polish During another blade, device is directed to by the adjustment knob on clamping rotating disk and rotates 360/n degree, n is the number of blade of domain guider Amount, and repeat aforesaid operations process；(4), only need to be by rocking bar, high-precision limited block if nozzle ring exit flow direction is located at engine axis opposite side Installation site is readjusted, and rocking bar is then installed on throat's radially polishing track control device other end by high-precision limited block, high Precision limited block is assemblied in throat radially in front of polishing track control device, repetition said process (1)-(3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051970.3A CN105856024B (en) | 2016-01-26 | 2016-01-26 | A kind of high-precision nozzle ring throat polishing platform and polishing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051970.3A CN105856024B (en) | 2016-01-26 | 2016-01-26 | A kind of high-precision nozzle ring throat polishing platform and polishing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105856024A CN105856024A (en) | 2016-08-17 |
| CN105856024B true CN105856024B (en) | 2018-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610051970.3A Active CN105856024B (en) | 2016-01-26 | 2016-01-26 | A kind of high-precision nozzle ring throat polishing platform and polishing process |
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| CN (1) | CN105856024B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3439431A1 (en) * | 1984-10-27 | 1986-04-30 | Messer Griesheim Gmbh, 6000 Frankfurt | PIPE FLAME CUTTER |
| CN101934453B (en) * | 2010-09-16 | 2011-09-14 | 青岛捷能汽轮机集团股份有限公司 | Three-dimensional direct-welding blade assembly welding system of steam turbine |
| FR2991209B1 (en) * | 2012-06-05 | 2015-07-03 | Snecma | CALIBRATION HEAD FOR TREE DRILLING |
| CN102825565B (en) * | 2012-09-03 | 2014-12-24 | 中国航空动力机械研究所 | Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same |
| CN102825445B (en) * | 2012-09-03 | 2014-12-24 | 中国航空动力机械研究所 | Tail breaking tool of turbine guider |
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2016
- 2016-01-26 CN CN201610051970.3A patent/CN105856024B/en active Active
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