CN110270826A - A kind of stack of sheets assembly technique, tool and system - Google Patents
A kind of stack of sheets assembly technique, tool and system Download PDFInfo
- Publication number
- CN110270826A CN110270826A CN201910501617.4A CN201910501617A CN110270826A CN 110270826 A CN110270826 A CN 110270826A CN 201910501617 A CN201910501617 A CN 201910501617A CN 110270826 A CN110270826 A CN 110270826A
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- thin
- stack
- sheets
- wall bush
- unilateral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- Mechanical Engineering (AREA)
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Abstract
The present invention provides a kind of stack of sheets assembly technique, tool and system.This method comprises: installing thin-wall bush to the unilateral combination bore of stack of sheets, and close up to thin-wall bush flange, so that the unilateral side of stack of sheets becomes an overall structure, completes unilateral assembly；Stack of sheets after unilateral assembly is integrally compressed, so that the pitch-row deviation of every layer of thin slice is accumulate to another side combination bore；Another side combination bore is ground, corrects the radially staggered surplus of each layer thin slice until final eliminate the accumulation of pitch-row deviation, to guarantee that each stainless steel thin slice endurance is balanced；Thin-wall bush is installed to the another side combination bore of stack of sheets, and is closed up to thin-wall bush flange, so that the another side of stack of sheets becomes an overall structure, completes stack of sheets assembly.
Description
Technical field
The invention belongs to Automatic manual transmission technique, it is related to a kind of stack of sheets assembly technique, tool and system.
Background technique
Light helicopter tail-rotor hub has a kind of stainless steel thin slice lamination assembling assembly, and main function is stainless using multilayer
Tail-rotor rotates the centrifugal force generated to steel disc and realization manipulates to bear for good whole static strength and elastic torsion deformation after being superimposed
Required displacement movement, therefore its stress form is centrifugal tension and alternation torsion, belongs to fatigue life part.
Its structure type are as follows: 48 stainless steel thin slice lamination assemblies (Fig. 1), by 18 of 0.3mm thickness stainless steel material
Short tension-torsion piece and 30 length of a film tension-torsion piece laminations composition, after by both ends be interference fitted thin-wall bush flange close up assembly be one
It is whole.
Assembly technology control is improper, easily causes every stainless steel thin slice endurance unbalanced, and component occurs single when use
Forced breakage, plasticity are elongated and other issues in advance for piece or part several, or between occurring between each layer stainless steel thin slice after assembly
Gap reduces stack of sheets overall stiffness, and then greatly reduces the service life, and influences flight safety.
Summary of the invention
The purpose of the present invention is: solution assembly technology control is improper, and every stainless steel thin slice is caused to withstand forces unbalanced, dress
With there is the problem of gap between rear each layer stainless steel thin slice.
The technical scheme is that
In a first aspect, providing a kind of stack of sheets assembly technique, comprising:
Thin-wall bush is installed to the unilateral combination bore of stack of sheets, and is closed up to thin-wall bush flange, so that thin slice is folded
The unilateral side of layer becomes an overall structure, completes unilateral assembly；
Stack of sheets after unilateral assembly is integrally compressed, is flattened, so that the pitch-row deviation of every layer of thin slice is accumulate to separately
Side combination bore；
Another side combination bore is ground, the radially staggered surplus for correcting each layer thin slice eliminates pitch-row cumulative departure up to final, with
Guarantee that each stainless steel thin slice endurance is balanced, consistent；
Thin-wall bush is installed to the another side combination bore of stack of sheets, and is closed up to thin-wall bush flange, so that thin slice is folded
The another side of layer becomes an overall structure, completes stack of sheets assembly.
Further, thin-wall bush is installed to the unilateral combination bore of stack of sheets, and closes up to thin-wall bush flange, packet
It includes:
By the unilateral combination bore of the leader insertion stack of sheets of press mounting tool, it is allowed to be aligned；
The stack of sheets after alignment is fixed by compression tooling；
Continue the unilateral combination bore that press mounting tool is inserted into stack of sheets, until the thin-wall bush on press mounting tool is guiding
In lower installation to the unilateral combination bore of stack of sheets completely；
Press mounting tool is exited out of unilateral combination bore；
Thin-wall bush two sides thin-walled flange is forced to turn up by closing in tool, until being completely against on the inner chamfer of gasket
It completes to close up.
Second aspect provides a kind of press mounting tool, comprising: pressure head and guide body；Guide body is divided into leader and support
Part；
Wherein, the upper end face contact of pressure head and support section；The outer wall of support section and the outer wall of pressure head are respectively arranged with
Groove；When the upper surface of support section and pressure head contact, two grooves combine the combination groove to be formed and accommodate thin-wall bush, recessed
The depth of slot and the wall thickness of thin-wall bush are identical；The outer diameter of guide body and the unilateral combination bore of stack of sheets are fitted close.
Thin-wall bush is sleeved on the lateral wall of support section and the lateral wall of pressure head, and the support of supported part and pressure head
Effect.
Further, the shape for combining groove is identical with the shape of thin-wall bush, and the chamfering for combining groove resists thin-walled lining
The inner chamfer of set, so that during press fitting, the inner chamfer load of thin-wall bush avoids the thin-walled of thin-wall bush impaired.
The third aspect provides a kind of compression tooling, comprising: handle, screw thread pair, upper cover plate and pedestal；
Wherein, stack of sheets is pressed in pedestal by upper cover plate；Through-hole, the unilateral combination of stack of sheets are provided on upper cover plate
Hole is aligned with through-hole, convenient for completing unilateral combination bore alignment, and the guidance installation thin-walled under impaction state by press mounting tool
Bushing；
The rotary motion of handle is converted to upper cover plate using screw thread pair and moved downward by rotating handle, to compress thin slice
Lamination.
Further, the diameter of through-hole is greater than the maximum gauge of press mounting tool.
Fourth aspect provides a kind of closing in tool, comprising: the formed punch of guide post and two opposite installations；
Guide post is step axle construction, the intermediate step of guide post and thin-wall bush inner hole, realizes that guide post is fixed and thin
Wall liner set and guide post are coaxial；The working face of formed punch is circular conical surface, and the axial centre of formed punch offers through-hole, the through-hole and guide post two
Cylindrical shaft cooperation is held, in order to guide two formed punch coaxial synchronous to move toward one another；The motion stress of formed punch is provided by press machine；
When two formed punch coaxial synchronous move toward one another, circular conical surface forces the thin-walled for the thin-wall bush for being cased with gasket to turn up,
Until the thin-walled of thin-wall bush is completely against on the inner chamfer of gasket.
Further, the cone angle of circular conical surface and the inner chamfer of gasket are identical.
5th aspect, provides a kind of stainless steel thin slice lamination assembly system characterized by comprising
Any press mounting tool of second aspect；
Any compression tooling of the third aspect；
Any closing in tool of fourth aspect.
The invention has the advantages that
1, the shape of press mounting tool combination groove is identical with the shape of thin-wall bush, and the chamfering for combining groove resists thin-walled lining
The inner chamfer of set, so that during press fitting, the inner chamfer load of thin-wall bush avoids the thin-walled of thin-wall bush impaired；
2, by distribution assembly, so that the pitch-row deviation of every layer of thin slice is accumulate to another side combination bore, another side combination is ground
Hole guarantees that every stainless steel thin slice endurance is balanced, consistent, avoid using when component there is monolithic or part several stress in advance
Fracture, plasticity elongation and other issues, or occur gap after assembly between each layer stainless steel thin slice, increase service life, improves
Flight safety；
3, in whole installation process, stack of sheets is being compressed, under stationary state, avoid stainless steel thin slice bending,
Distort equivalent damage.
Detailed description of the invention
Fig. 1 is existing tension-torsion piece lamination installation diagram；
Fig. 2 is the structure chart of compression tooling provided by the invention；
Fig. 3 is the structure chart of press mounting tool provided by the invention；
Fig. 4 is the structure chart of closing in tool provided by the invention.
Specific embodiment
The present invention is described in further details below.
To reach service life and functional requirement, there are following mounting technology main points, difficult point in technique: by thin-wall bush 2
It is smoothly packed into 1 combination bore of stack of sheets being interference fitted therewith；Guarantee every layer of stainless steel thin slice endurance in stack of sheets 1
It is balanced, consistent；Guarantee the synchronous flange closing in compression in 2 two sides of thin-wall bush, uniform not play.
The present invention provides a kind of stainless steel thin slice lamination assembly technique, and principle is to utilize the good centering of circular conical surface
Property realize thin-wall bush 2 installation guidance and 2 flange of thin-wall bush close up；It is by substep assembly that every layer of Thin Stainless Steel perforation pitch is inclined
Difference is accumulate to another side combination bore, and grinds another side combination bore and eliminate pitch-row cumulative departure to final, guarantees every layer of stainless steel thin slice
Endurance is balanced, consistent；Flange seaming tool is designed using the big inversion principle such as active force and reaction, realizes thin-wall bush 2
The synchronous flange closing in compression in two sides, uniform not play；
To guarantee that stack of sheets 1 consolidates in 2 installation process of thin-wall bush, not bending, non-warping, design compression tooling,
It is made of (Fig. 2) handle 4, screw thread pair 5, upper cover plate 6,7 four part of pedestal, rotating handle 4 when work, using screw thread pair 5 by hand
The rotary motion of handle 4 is converted to moving downward for upper cover plate 6, and then stack of sheets 1 is consolidated and is clamped in upper cover plate 6 and pedestal 7
It between plane, flattens, clamp；
To guarantee that thin-wall bush 2 is smoothly packed into 1 combination bore of stack of sheets and cannot damage the thin-walled of thin-wall bush 2, if
Count press mounting tool A, be made of (Fig. 3) pressure head 8,9 two parts of guide body, when work the front end circular conical surface of guide body 9 first into
Enter in 1 combination bore of stack of sheets, by neutrality that each radially staggered stainless steel substrates in stack of sheets 1 are axial along combination bore
Alignment is then packed into 9 rear end of guide body thin until the cylindrical surface of entire guide body 9 and 1 combination bore of stack of sheets are fitted close
Wall liner set 2, covers pressure head 8, taps pressure head 8 along axial, thin-wall bush 2 is made to be packed into the combination of stack of sheets 1 under good guidance
In hole, wherein pressure head 8 and guide body 9 and 2 thin-walled contact site of thin-wall bush can withstand in thin-wall bush 2 from inside
Angle makes its load, and the thin-walled of thin-wall bush 2 is avoided to be damaged during press fitting；
It is compressed for the synchronous flange closing in of guarantee 2 two sides thin-walled of thin-wall bush, uniform not play, design closing in tool, by
Upper punch 10, guide post 11,12 three parts of low punch composition (Fig. 4), are packed into 2 inner hole of thin-wall bush for guide post 11 first when work,
By upper punch 10, low punch 12 respectively from upper and lower insertion guide post 11, press machine applies pressure to upper punch 10 when closing in, according to work
Firmly with reaction force principle, upper punch 10, low punch 12 will do synchronous relative motion along guide post 11, at the same time upper punch
10, the cone surface of bit of low punch 12 will force 2 two sides thin-walled of thin-wall bush to turn up, until be completely against gasket 3 it is interior fall
It completes to close up on angle, since circular conical surface is good to neutrality, 2 two sides thin-walled of thin-wall bush turns up, and uniform, pressing is firm.
Use principle of the invention are as follows:
1) guide body 9 of press mounting tool A is inserted into the combination bore of stack of sheets 1, is allowed to alignment up to the circle of guide body 9
Cylinder and 1 combination bore of stack of sheets are fitted close；
2) stack of sheets 1 of above-mentioned insertion guide body 9 is placed between 7 plane of upper cover plate 6 and pedestal of compression tooling, is revolved
Handle 4 is changed hands by the firm pressing of stack of sheets 1, clamping；
3) it is taken out after thin-wall bush 2 being put into liquid nitrogen cooling 5-8min, is mounted in 9 rear end of guide body, covers pressure head 8, it is fast
Speed taps pressure head 8, is packed into thin-wall bush 2 under the guidance in the unilateral combination bore of stack of sheets 1, pays attention to guaranteeing 2 liang of thin-wall bush
End face bulge quantity is consistent；
4) gasket 3 is sleeved on 2 both ends of the surface of thin-wall bush protrusion part, and is adjacent to 1 top and bottom of stack of sheets；
5) guide post 11 is packed into 2 inner hole of thin-wall bush, by upper punch 10, low punch 12 respectively from upper and lower insertion guide post 11, uses
Press machine applies pressure to upper punch 10, and upper punch 10, low punch 12 with cone surface of bit synchronize opposite fortune along guide post 11
It is dynamic to complete to close up, check after the thin-walled flange of thin-wall bush 2 without crack, turn up uniformly, be pressed against it is firm；
6) the stack of sheets assembly that above-mentioned completion unilateral side is closed up is placed on again on compression tooling and is compressed, due to closing in end
The radial compression of thin-wall bush 2 and 1 combination bore of stack of sheets interference fit acts on, and two pitch-rows of each layer stainless steel thin slice are inclined at this time
Accumulation in the another side combination bore of stack of sheets 1, is then ground the combination bore of another side stack of sheets 1 to final aperture, corrected by difference
The radially staggered surplus of each layer stainless steel substrates makes another side combination bore strictly axially align, is smooth, cleans up；
7) 3) 4) 5) step completion another side assembly closing in is repeated.
Claims (9)
1. a kind of stack of sheets assembly technique characterized by comprising
Thin-wall bush is installed to the unilateral combination bore of stack of sheets, and is closed up to thin-wall bush flange, so that stack of sheets
Unilateral side becomes an overall structure, completes unilateral assembly；
Stack of sheets after unilateral assembly is integrally compressed, so that the pitch-row deviation of every layer of thin slice is accumulate to another side combination bore；
Another side combination bore is ground, corrects the radially staggered surplus of each layer thin slice until final eliminate pitch-row cumulative departure, to guarantee
Each stainless steel thin slice endurance is balanced, consistent；
Thin-wall bush is installed to the another side combination bore of stack of sheets, and is closed up to thin-wall bush flange, so that stack of sheets
Another side becomes an overall structure, completes stack of sheets assembly.
2. the method according to claim 1, wherein install thin-wall bush to the unilateral combination bore of stack of sheets,
And it closes up to thin-wall bush flange, comprising:
By the unilateral combination bore of the leader insertion stack of sheets of press mounting tool, it is allowed to be aligned；
The stack of sheets after alignment is fixed by compression tooling；
Continue by press mounting tool be inserted into stack of sheets unilateral combination bore, until the thin-wall bush on press mounting tool install completely to
In the unilateral combination bore of stack of sheets；
Press mounting tool is exited out of unilateral combination bore；
A upper gasket is covered respectively at the both ends that thin-wall bush stretches out unilateral combination bore；
It forces thin-wall bush two sides thin-walled to turn up by closing in tool, completes to receive on the inner chamfer of gasket until being completely against
Mouthful.
3. a kind of press mounting tool characterized by comprising pressure head and guide body；Guide body is divided into leader and support section；
Wherein, the upper end face contact of pressure head and support section；The outer wall of support section and the outer wall of pressure head are respectively set fluted；
When the upper surface of support section and pressure head contact, two grooves combine the combination groove to be formed and accommodate thin-wall bush, groove
Depth is identical as the thickness of thin-wall bush；The outer diameter of guide body and the unilateral combination bore of stack of sheets are fitted close.
Thin-wall bush is sleeved on the lateral wall of support section and the lateral wall of pressure head, and the support of supported part and pressure head is made
With.
4. press mounting tool according to claim 3, which is characterized in that combine the shape of groove and the shape phase of thin-wall bush
Together, the chamfering for combining groove resists the inner chamfer of thin-wall bush, so that during press fitting, the inner chamfer load of thin-wall bush,
Avoid the thin-walled of thin-wall bush impaired.
5. a kind of compression tooling characterized by comprising handle, screw thread pair, upper cover plate and pedestal；
Wherein, stack of sheets is pressed in pedestal by upper cover plate；Be provided with through-hole on upper cover plate, the unilateral combination bore of stack of sheets with
Through-hole alignment, convenient for completing unilateral combination bore alignment, and the guidance installation thin-wall bush under impaction state by press mounting tool；
The rotary motion of handle is converted to upper cover plate using screw thread pair and moved downward by rotating handle, to compress stack of sheets.
6. compression tooling according to claim 5, which is characterized in that the maximum that the diameter of through-hole is greater than press mounting tool is straight
Diameter.
7. a kind of closing in tool characterized by comprising the formed punch of guide post and two opposite installations；
Guide post is step axle construction, and the intermediate step and thin-wall bush inner hole of guide post realize that guide post is fixed and thin-walled serves as a contrast
Set and guide post are coaxial；The working face of formed punch is circular conical surface, and the axial centre of formed punch offers through-hole, the through-hole and guide post two terminal circle
Axis of a cylinder cooperation, in order to guide two formed punch coaxial synchronous to move toward one another；The motion stress of formed punch is provided by press machine；
When two formed punch coaxial synchronous move toward one another, circular conical surface forces the thin-walled for the thin-wall bush for being cased with gasket to turn up, until
The thin-walled of thin-wall bush is completely against on the inner chamfer of gasket.
8. closing in tool according to claim 7, which is characterized in that the cone angle of circular conical surface and the inner chamfer of gasket are identical.
9. a kind of stainless steel thin slice lamination assembly system characterized by comprising
Press mounting tool described in claim 3 or 4；
Compression tooling described in claim 5 or 6；
With closing in tool described in claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501617.4A CN110270826B (en) | 2019-06-11 | 2019-06-11 | Sheet lamination assembly process method, tool and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501617.4A CN110270826B (en) | 2019-06-11 | 2019-06-11 | Sheet lamination assembly process method, tool and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110270826A true CN110270826A (en) | 2019-09-24 |
| CN110270826B CN110270826B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910501617.4A Active CN110270826B (en) | 2019-06-11 | 2019-06-11 | Sheet lamination assembly process method, tool and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477355A (en) * | 2020-11-03 | 2021-03-12 | 昌河飞机工业（集团）有限责任公司 | Sheet lamination group integral processing forming method |
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| CN108317199A (en) * | 2018-02-08 | 2018-07-24 | 株洲时代新材料科技股份有限公司 | The flexural pivot axial direction rigidity-changing method and flexural pivot of I-shaped bushing and laminated spring cooperation |
| CN208681478U (en) * | 2018-06-21 | 2019-04-02 | 江西昌河航空工业有限公司 | A kind of thin walled aperture bushing press-mounting tool |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919642A (en) * | 1982-07-19 | 1984-02-01 | Nissan Motor Co Ltd | Circular parts assembler |
| CN102861829A (en) * | 2012-08-21 | 2013-01-09 | 沈阳黎明航空发动机(集团)有限责任公司 | Conduit closing-in clamp and closing-in method |
| CN205413519U (en) * | 2015-12-11 | 2016-08-03 | 中国商用飞机有限责任公司 | Skin clamp unit |
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| CN108317199A (en) * | 2018-02-08 | 2018-07-24 | 株洲时代新材料科技股份有限公司 | The flexural pivot axial direction rigidity-changing method and flexural pivot of I-shaped bushing and laminated spring cooperation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477355A (en) * | 2020-11-03 | 2021-03-12 | 昌河飞机工业（集团）有限责任公司 | Sheet lamination group integral processing forming method |
| CN112477355B (en) * | 2020-11-03 | 2022-08-02 | 昌河飞机工业（集团）有限责任公司 | Sheet lamination group integral processing forming method |
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| CN110270826B (en) | 2021-06-29 |
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