CN107127684A - Variable cross-section abnormity channel design abrasive flows skin processing special fixture - Google Patents
Variable cross-section abnormity channel design abrasive flows skin processing special fixture Download PDFInfo
- Publication number
- CN107127684A CN107127684A CN201710411330.3A CN201710411330A CN107127684A CN 107127684 A CN107127684 A CN 107127684A CN 201710411330 A CN201710411330 A CN 201710411330A CN 107127684 A CN107127684 A CN 107127684A
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- CN
- China
- Prior art keywords
- fixture
- sharp edge
- workpiece
- base
- special
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Abstract
A kind of special-shaped channel design abrasive flows skin processing special fixture of variable cross-section, it includes backing plate at bottom（9）And base（5）, it is characterized in that described base（5）It is sleeved on fixture and covers（1）In, covered on fixture（1）It is fixed on backing plate at bottom（9）On, workpiece（2）Installed in base（5）On, in base（5）It is upper to be arranged on retainer ring（4）, retainer ring（4）On sharp edge guard bar is installed（3）；Covered on fixture（1）Cylindricality side on be machined with jack, diversion column（7）Main part insertion workpiece（2）Runner（10）In.The present invention completes the skin processing to including the special-shaped channel design part of complicated variable cross-section by the once flowing of abrasive material, and device is simple, it is easy to installation and dismounting, and the part that high-efficiency high-accuracy processing includes complicated variable section channel structure can be achieved.
Description
Technical field
It is especially a kind of for including the special-shaped passage knot of complicated variable cross-section the present invention relates to a kind of Surface-micromachining process
The abrasive flows skin processing special fixture of structure, the workpiece required with high surface quality, specifically a kind of variable cross-section is different
Shape channel design abrasive flows skin processing special fixture.
Background technology
All include Complex Different Shape in a large amount of parts in Aero-Space engine, gas turbine, with to gas
The continuous improvement of dynamic performance requirement, the type face of gas channel becomes increasingly complex, dimensional accuracy and surface quality requirements more and more higher,
And have trend made in one piece.
For the process made in one piece of the integrated member that solves to include the special-shaped channel design of complicated variable cross-section,
Numerical control Electrolyzed Processing, which is realized, efficiently goes surplus, numerical control electric spark processing to meet after high-precision requirement, with abrasive flows skin processing
Technology carries out high-quality surface processing and seems very necessary.And traditional processing method can not be almost processed comprising also there is complicated change
The part of cross section special-shaped channel design.Therefore Abrasive Flow Machining is into best selection, therefore cut for including complicated become
The Element Design abrasive flows skin processing special fixture of face abnormity channel design is very important, and can be to include complicated become to cut
The overall manufacture of the integrated member of face abnormity channel design provides a kind of fixture of feasible Practical.
The content of the invention
The purpose of the present invention is inconvenient for the special-shaped passage finishing of existing complicated variable cross-section, and uses abrasive flow machining
The problem of lacking corresponding instrument, design a kind of special-shaped channel design abrasive flows skin processing special fixture of variable cross-section..
The technical scheme is that：
A kind of special-shaped channel design abrasive flows skin processing special fixture of variable cross-section, it includes backing plate at bottom 9 and base 5, bottom
Backing plate 9 is fixedly connected with machining tool, and center is provided with the through hole entered for abrasive material, and base 5 is positioned on backing plate at bottom 9, and it is special
It is that described base 5 is sleeved on fixture in lid 1 to levy, and lid 1 is fixed on backing plate at bottom 9 on fixture, and workpiece 2 is arranged on base 5
On, on base 5, the center position of workpiece 2 be arranged in retainer ring 4, retainer ring 4 and sharp edge guard bar 3 be installed, sharp edge is protected
The club head portion of guard bar 3 is inserted on the runner sharp edge of the inner ring of workpiece 2 to prevent damage of the abrasive material to workpiece inner ring sharp edge；In fixture
The jack inserted for diversion column 7 is machined with the cylindricality side of upper lid 1, the main part of diversion column 7 inserts the runner 10 of workpiece 2
In and make each runner 10 two abrasive material flow channels 11 of formation, each abrasive material flow channel 10 is uiform section passage；Processing is used
Abrasive material enters described runner 10 from the abrasive material passage of the through hole through being formed between lid 1 on base 5 and fixture at the center of backing plate at bottom 9
In the flow path wall 12 of the workpiece of the both sides of runner 10 is processed, finally flow to going out for lid 1 on fixture from the through hole of workpiece centre
Material hole 13 flows to grinding material collecting device.
Described base 5 is positioned on backing plate at bottom 9 by positioning strip 6.
The club head portion of described sharp edge guard bar 3 is provided with the slot for the insertion of workpiece sharp edge.
The bar portion of described sharp edge guard bar 3 is provided with positioning groove 14, also is provided with protecting for sharp edge in retainer ring 4
The detent 15 that guard bar 3 is inserted with positioning with the afterbody of groove 14, adds in retainer ring 4 and consolidates sharp edge guard bar 3
Fixed pressure ring, pressure ring is connected with the snapping of retainer ring 4 or with screw.
Described diversion column 7 is connected with the limiting plate 16 for preventing that its transition from inserting, and limiting plate 16 is fixed by fastening cranse 8
On fixture on the cylindricality outer ring of lid 1.
The sharp edge guard bar of the present invention, the elasticity such as polytetrafluoroethylene (PTFE), nylon preferably plastics are may be selected according to practical work piece,
Defective work piece sharp edge in abrasive flows skin processing can be prevented.
Beneficial effects of the present invention：
The present invention can just make the special-shaped channel design workpiece of variable cross-section obtain preferable surface quality by time processing（＜
0.1mm and surface conformance.
The drainage post of the present invention is identical with runner internal structure, and size is slightly smaller, stretches into runner so that supplying abrasive flows
Dynamic runner from entrance to outlet everywhere uiform section accumulate, therefore carry out abrasive flow machining when, workpiece runner inner wall pressure compared with
To be uniform, therefore the variable section channel form workpiece of complexity can be made to complete to process and obtain higher by the once flowing of abrasive material
Surface conformance.
The present invention can be completed to including the special-shaped channel design part of complicated variable cross-section by the once flowing of abrasive material
Skin processing, and ensure great surface quality and high processing uniformity, and device is simple, it is easy to installs and dismounting, achievable height
Effect high accuracy processing includes the part of complicated variable section channel structure.
The backing plate at bottom of the present invention, base, on fixture lid, drainage post, the overall co-ordination of sharp edge guard bar form one and close
Runner, abrasive material entered in clamp body by the centre bore of backing plate at bottom, is entered along runner in workpiece, and sharp edge guard bar is protected
The sharp edge in shield exit prevents abrasive material from the thin-walled in exit is destroyed, and can successfully protect the thin-wall construction in workpiece.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of the present invention.
Fig. 2 is that the present invention includes complicated variable section channel constitutional detail cross section of fluid channel figure.
Fig. 3 is the structural representation of the drainage post of the present invention.
Fig. 4 is the single runner flow schematic diagram of the present invention.
Fig. 5 is the overall schematic of the sharp edge guard bar of the present invention.
Fig. 6 is the sharp edge protection club head enlarged diagram of the present invention.
Fig. 7 is the sharp edge guard bar afterbody enlarged diagram of the present invention.
Fig. 8 is the sharp edge guard bar retainer ring schematic diagram of the present invention.
Fig. 9 is the sharp edge guard bar and retainer ring Tenon cooperation schematic diagram of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figs 1-9.
A kind of special-shaped channel design abrasive flows skin processing special fixture of variable cross-section, it includes backing plate at bottom 9 and base 5,
Backing plate at bottom 9 is fixedly connected with machining tool, and center is provided with the through hole entered for abrasive material, and base 5 is positioned at bottom by positioning strip 6
On portion's backing plate 9, the effect one of positioning strip 6 is realize base circumferentially positioned, is to make shape between base 5 and backing plate at bottom 9 in addition
Into abrasive material passage, described base 5 is sleeved on fixture in lid 1, and lid 1 is fixed on backing plate at bottom 9 on fixture, lid 1 on fixture
Height should ensure that the axially position of its internal installing component, workpiece 2（As shown in Figure 2）On base 5, on base 5,
The center position of workpiece 2 is arranged in the retainer ring 4 shown in Fig. 8, retainer ring 4 and is provided with sharp edge guard bar 3 and by pressure ring
Fixed, pressure ring can be also connected using the tenon riveting knot structure shown in Fig. 9 using fastening structure or bolt structure, sharp edge guard bar 3
Profile is as shown in figure 5, its club head portion is inserted on the runner sharp edge of the inner ring of workpiece 2 to prevent abrasive material to workpiece inner ring sharp edge
Damage, such as Fig. 6；The jack inserted for diversion column 7 as shown in Figure 3, diversion column are machined with the cylindricality side of lid 1 on fixture
In the runner 10 of 7 main part insertion workpiece 2 and make each runner 10 two abrasive material flow channels 11 of formation, each abrasive flows
Enter passage 10 for uiform section passage, such as Fig. 4；Processing abrasive material is from the through hole at the center of backing plate at bottom 9 through lid 1 on base 5 and fixture
Between the abrasive material passage that is formed enter in described runner 10 flow path wall 12 of the workpiece of the both sides of runner 10 be processed, finally
The discharge opening 13 for flowing to lid 1 on fixture from the through hole of workpiece centre flows to grinding material collecting device.When it is implemented, sharp edge guard bar
3 can may be selected the elasticity such as polytetrafluoroethylene (PTFE), nylon preferably plastics according to practical work piece, can prevent from damaging in abrasive flows skin processing
Bad workpiece sharp edge.Its club head portion is provided with the slot for the insertion of workpiece sharp edge, such as Fig. 6, the bar afterbody of described sharp edge guard bar 3
It is arranged with positioning groove 14（Such as Fig. 7）, it also is provided with carrying the tail of positioning groove 14 in retainer ring 4 for sharp edge guard bar 3
The detent 15 of portion's insertion（Fig. 8）, the pressure ring for fixing sharp edge guard bar 3, pressure ring and retainer ring are added in retainer ring 4
4 snappings are connected with screw.Diversion column 7 is connected with the limiting plate 16 for preventing that its transition from inserting, such as Fig. 3, and limiting plate 16 is by tight
Gu cranse 8 is fixed on the cylindricality outer ring of lid 1 on fixture, as shown in Figure 1.
Details are as follows：
This hair is that the backing plate at bottom having is connected by positioning strip with base, and the sharp edge guard bar head recess entangles workpiece runner
At inwall sharp edge, the sharp edge guard bar retainer ring is combined by joinery and its construction, and described retainer ring cover plate compresses sharp edge and protected
Guard bar retainer ring, the fastening bolt is screwed in up in the centre bore of base, being covered on described fixture from retainer ring cover plate central
It is placed on by way of hole axle coordinates on backing plate at bottom, described drainage post is stretched into runner from the inclined hole of upper lid surrounding, institute
State drainage post fixation cranse and locking drainage post is fixed with bolt and nut.
The present invention a successful case in, backing plate at bottom is simple in construction by positioning strip and base engagement, install with
Dismounting is simple and efficient.
In one of successful case of the present invention, base is positioned by angle bar and cylinder boss.
In one of successful case of the present invention, sharp edge guard bar head recess entangles workpiece runner inner wall sharp edge
Place, afterbody and the head of sharp edge guard bar are in the angle of the setting determined according to workpiece inner wall, and afterbody points to the center of circle.
In one of successful case of the present invention, the afterbody of sharp edge guard bar is all directed to the center of circle, sharp edge guard bar
Retainer ring fixes sharp edge guard bar by similar joinery and its construction, simple in construction, installs convenient and swift with unloading.
In one of successful case of the present invention, sharp edge guard bar is prevented using plastics such as polytetrafluoroethylene (PTFE), nylon
Disfiguring workpiece sharp edge in abrasive flows skin processing.
In one of successful case of the present invention, drainage post is identical with runner internal structure, and size is slightly smaller, stretches
The space for forming 3-5mm in air stream enter runner everywhere with flow path wall supplies abrasive flow, therefore when carrying out abrasive flow machining, in workpiece runner
Wall pressure is more uniform, therefore can obtain higher surface conformance.
In one of successful case of the present invention, drainage post outer ring protrudes limiting plate and drainage post fixation cranse is hollow
Part is mutually agreed with, and steps up mode simply, is installed and unloading simple and fast.
In one of successful case of the present invention, clamp base backing plate, base, lid, drainage post, sharp edge guarantor on fixture
Guard bar overall co-ordination forms the runner of a closing, and abrasive material is entered in clamp body by the centre bore of backing plate at bottom, along stream
Road enters in workpiece, and the sharp edge at sharp edge guard bar protection exit prevents abrasive material from the thin-walled in exit is destroyed.
The present invention operation principle be：
The fixture assembled is placed on platen, after lathe matched moulds, piston promotes the liquid abrasive material in abrasive material cylinder
Entered by the centre bore of backing plate at bottom in clamp body.Liquid abrasive material is entered forms envelope by backing plate at bottom, base, upper lid
Close runner.Enter and be plugged with the workpiece runner of drainage post along set runner.Left between drainage post and workpiece inner wall
Section gap, liquid abrasive material is by gap to outlet diffluence, and the sharp edge guard bar in exit is embedded in workpiece runner internal vent
On sharp keen flow path wall, therefore liquid abrasive material will be along sharp edge guard bar without the sharp wall outflow clamp body of contact, and sharp edge guard bar is played
The effect of protection sharp edge.The sharp edge guard bar matched with runner quantity is along the circumferential direction uniform, sharp edge guard bar retainer ring
Multiple sharp edge guard bars are fixed in the way of similar Tenon coordinates.The drainage post drainage post of corresponding number is built on embedded fixture
Fastening cranse 8 is fixed.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (5)
1. a kind of special-shaped channel design abrasive flows skin processing special fixture of variable cross-section, it includes backing plate at bottom（9）And base
（5）, backing plate at bottom（9）It is fixedly connected with machining tool, center is provided with the through hole entered for abrasive material, base（5）It is positioned at bottom
Backing plate（9）On, it is characterized in that described base（5）It is sleeved on fixture and covers（1）In, covered on fixture（1）It is fixed on backing plate at bottom
（9）On, workpiece（2）Installed in base（5）On, in base（5）Upper, workpiece（2）Center position be arranged on retainer ring（4）,
Retainer ring（4）On sharp edge guard bar is installed（3）, sharp edge guard bar（3）Club head portion insertion workpiece（2）The runner of inner ring is sharp
To prevent damage of the abrasive material to workpiece inner ring sharp edge on side；Covered on fixture（1）Cylindricality side on be machined with and supply diversion column（7）
The jack of insertion, diversion column（7）Main part insertion workpiece（2）Runner（10）In and make each runner（10）Form two
Abrasive material flow channel（11）, each abrasive material flow channel（10）For uiform section passage；Processing abrasive material is from backing plate at bottom（9）Center
Through hole through base（5）With being covered on fixture（1）Between the abrasive material passage that is formed enter described runner（10）In to runner（10）
The flow path wall of the workpiece of both sides（12）It is processed, finally flows to and covered on fixture from the through hole of workpiece centre（1）Discharge opening
（13）Flow to grinding material collecting device.
2. the special-shaped channel design abrasive flows skin processing special fixture of variable cross-section according to claim 1, it is characterized in that institute
The base stated（5）Pass through positioning strip（6）It is positioned at backing plate at bottom（9）On.
3. the special-shaped channel design abrasive flows skin processing special fixture of variable cross-section according to claim 1, it is characterized in that institute
The sharp edge guard bar stated（3）Club head portion be provided with slot for the insertion of workpiece sharp edge.
4. the special-shaped channel design abrasive flows skin processing special fixture of variable cross-section according to claim 1, it is characterized in that institute
The sharp edge guard bar stated（3）Bar portion be provided with positioning groove（14）, in retainer ring（4）On also be provided with supply sharp edge guard bar
（3）With positioning groove（14）Afterbody insertion detent（15）, in retainer ring（4）On add sharp edge guard bar
（3）Fixed pressure ring, pressure ring and retainer ring（4）Snapping is connected with screw.
5. the special-shaped channel design abrasive flows skin processing special fixture of variable cross-section according to claim 1, it is characterized in that institute
The diversion column stated（7）It is connected with the limiting plate for preventing that its transition from inserting（16）, limiting plate（16）By fastening cranse（8）It is fixed on
Covered on fixture（1）Cylindricality outer ring on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411330.3A CN107127684B (en) | 2017-06-05 | 2017-06-05 | Variable cross-section abnormity channel design abrasive flows skin processing special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411330.3A CN107127684B (en) | 2017-06-05 | 2017-06-05 | Variable cross-section abnormity channel design abrasive flows skin processing special fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107127684A true CN107127684A (en) | 2017-09-05 |
| CN107127684B CN107127684B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710411330.3A Active CN107127684B (en) | 2017-06-05 | 2017-06-05 | Variable cross-section abnormity channel design abrasive flows skin processing special fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN107127684B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527141A (en) * | 2018-03-26 | 2018-09-14 | 南京航空航天大学 | A kind of variable cross-section abnormity channel abrasive flow machining built-up jig |
| CN108637899A (en) * | 2018-05-02 | 2018-10-12 | 南京航空航天大学 | A kind of abrasive flow machining grid group hole special fixture |
| CN109732494A (en) * | 2019-01-07 | 2019-05-10 | 南京航空航天大学 | A kind of Special shaped Waveguide Pipes abrasive flows skin processing special fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064661A (en) * | 1975-04-19 | 1977-12-27 | Riichi Maeda | Centrifugal blasting apparatus |
| CN201807968U (en) * | 2010-08-11 | 2011-04-27 | 德利赉精密五金制品(深圳)有限公司 | Automatic sand blast machine fixture and automatic sand blast machine |
| CN102152244A (en) * | 2010-12-27 | 2011-08-17 | 大连工业大学 | Special clamp for abrasive flow polishing of narrow flow passage closed impeller flow passage |
| CN103029044A (en) * | 2012-12-12 | 2013-04-10 | 中国南方航空工业(集团)有限公司 | Clamp and application method thereof |
| CN206200744U (en) * | 2016-09-30 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | A kind of abrasive Flow fixture |
-
2017
- 2017-06-05 CN CN201710411330.3A patent/CN107127684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064661A (en) * | 1975-04-19 | 1977-12-27 | Riichi Maeda | Centrifugal blasting apparatus |
| CN201807968U (en) * | 2010-08-11 | 2011-04-27 | 德利赉精密五金制品(深圳)有限公司 | Automatic sand blast machine fixture and automatic sand blast machine |
| CN102152244A (en) * | 2010-12-27 | 2011-08-17 | 大连工业大学 | Special clamp for abrasive flow polishing of narrow flow passage closed impeller flow passage |
| CN103029044A (en) * | 2012-12-12 | 2013-04-10 | 中国南方航空工业(集团)有限公司 | Clamp and application method thereof |
| CN206200744U (en) * | 2016-09-30 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | A kind of abrasive Flow fixture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527141A (en) * | 2018-03-26 | 2018-09-14 | 南京航空航天大学 | A kind of variable cross-section abnormity channel abrasive flow machining built-up jig |
| CN108527141B (en) * | 2018-03-26 | 2019-11-12 | 南京航空航天大学 | A kind of variable cross-section abnormity channel abrasive flow machining built-up jig |
| CN108637899A (en) * | 2018-05-02 | 2018-10-12 | 南京航空航天大学 | A kind of abrasive flow machining grid group hole special fixture |
| CN109732494A (en) * | 2019-01-07 | 2019-05-10 | 南京航空航天大学 | A kind of Special shaped Waveguide Pipes abrasive flows skin processing special fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107127684B (en) | 2018-09-11 |
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