CN203991975U - Small-bend radius aviation conduit elbows shaping mould - Google Patents
Small-bend radius aviation conduit elbows shaping mould Download PDFInfo
- Publication number
- CN203991975U CN203991975U CN201420308115.2U CN201420308115U CN203991975U CN 203991975 U CN203991975 U CN 203991975U CN 201420308115 U CN201420308115 U CN 201420308115U CN 203991975 U CN203991975 U CN 203991975U
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- pressure piston
- fairlead
- small
- bend radius
- cavity
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- Expired - Fee Related
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Abstract
The utility model is created and is related to a kind of small-bend radius aviation conduit elbows shaping mould, comprise upper die and lower die, the cavity forming after upper die and lower die fasten is the shape after guiding-tube bend, is respectively equipped with limiting stand at the two ends of cavity, and limiting stand is provided with the fairlead coaxial with cavity two ends; In a fairlead therein, be provided with flexible mandrel, flexible mandrel is connected with low-pressure piston by connecting rod; In another fairlead, be provided with packing ring, the outer face of packing ring coordinates high pressure piston, and low-pressure piston is coaxially slidably matched with corresponding fairlead respectively with high pressure piston.This shaping mould has overcome a small-bend radius aviation duct forming processing difficult problem, realize aviation conduit at stable state compacted under, when moulding, be difficult for producing cracking, fold and necking, realized small-bend radius aviation conduit detail high-quality, stable and high efficiency of forming processing method.
Description
Technical field
The invention relates to a kind of small-bend radius aviation conduit elbows shaping mould, belongs to a kind of processing tool of aviation conduit.
Background technology
Aircraft small-bend radius aviation conduit detail, in the time of moulding, can produce that the outer aperature of angle, interior angle are wrinkling, conduit diameter necking, and conventional bending or numerical-control bending all cannot be realized shaping; Sometimes need two semicanals by after stamping, then become a complete aviation conduit by welding, cause working (machining) efficiency lower, parts size precision is difficult to ensure.
Summary of the invention
The technical problem that the invention will solve is to provide a kind of small-bend radius aviation conduit elbows shaping mould, this shaping mould has overcome a small-bend radius aviation duct forming processing difficult problem, realize aviation conduit at stable state compacted under, when moulding, be difficult for producing cracking, fold and necking, realized small-bend radius aviation conduit detail high-quality, stable and high efficiency of forming processing method.
For overcoming the above problems, the concrete technical scheme of the invention is as follows: a kind of small-bend radius aviation conduit elbows shaping mould, comprise upper die and lower die, the cavity forming after upper die and lower die fasten is the shape after guiding-tube bend, two ends at cavity are respectively equipped with limiting stand, and limiting stand is provided with the fairlead coaxial with cavity two ends; In a fairlead therein, be provided with flexible mandrel, flexible mandrel is connected with low-pressure piston by connecting rod; In another fairlead, be provided with packing ring, the outer face of packing ring coordinates high pressure piston, and low-pressure piston is coaxially slidably matched with corresponding fairlead respectively with high pressure piston.
Described counterdie is provided with guide pillar, and patrix is provided with guide pin bushing, and the position of guide pin bushing is corresponding with the position of guide pillar.
This small-bend radius aviation conduit elbows shaping mould adopts flexible mandrel to support the inwall of bend pipe, can in formed in mould process, ensure conduit inside and outside wall uniform stressed, thereby the phenomenon that should not produce cracking, fold and necking down when moulding, after moulding, parts size precision is high.
Brief description of the drawings
Fig. 1 is the structural representation of small-bend radius aviation conduit elbows shaping mould.
Fig. 2 is the A-A cutaway view of Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of small-bend radius aviation conduit elbows shaping mould, comprise patrix 12 and counterdie 11, the cavity 6 forming after patrix 12 and counterdie 11 fasten is the shape after guiding-tube bend, two ends at cavity 6 are respectively equipped with limiting stand, limiting stand is spacing for fairlead is carried out, and limiting stand is provided with the fairlead 1 coaxial with cavity 6 two ends; In a fairlead 1 therein, be provided with flexible mandrel 2, flexible mandrel 2 is connected with low-pressure piston 10 by connecting rod 9; In another fairlead 1, be provided with packing ring 4, the outer face of packing ring 4 coordinates high pressure piston 5, and low-pressure piston 10 is coaxially slidably matched with corresponding fairlead 1 respectively with high pressure piston 5.
Described counterdie 11 is provided with guide pillar 8, and patrix 12 is provided with guide pin bushing 7, and the position of guide pin bushing 7 is corresponding with the position of guide pillar 8.
The method of utilizing described forming elbow mould to carry out the moulding of small-bend radius aviation conduit, comprises the following steps:
1) patrix 12 and counterdie 11 are positioned to clamping on forming machine;
2) evenly spread upon on conduit woollen outer wall with lubrication protection varnish;
3) open forming machine, rise upper table and drive patrix 12 to rise, decline lower table drives counterdie 11 to decline, and the cavity 6 of the upper and lower mould of wiping, ensures surface cleaning, and is coated with lubricant grease at mold cavity surface, is conducive to conduit smooth and easy in the interior movement of cavity 6;
4) flexible mandrel 2 is put into the endoporus of conduit woollen 3, then conduit woollen 3 and flexible mandrel 2 are put into the fairlead 1 of one end, and the outside of flexible mandrel 2 is arranged low-pressure piston 10 by connecting rod simultaneously; In another fairlead, packing ring 4 and high pressure piston 5 are set simultaneously;
5) close forming machine, rise counterdie 11, decline patrix 12, is that cavity 6 forms closed space;
6) respectively to exerting pressure with high pressure piston 5, and high pressure piston 5 is than the high 0.2MPa of the pressure of low-pressure piston 10, and high pressure piston 5 is not moved simultaneously, and low-pressure piston 10 moves forward predetermined move distance;
7) again open forming machine, the conduit detail after moulding is positioned at cavity 6, and flexible mandrel is taken out from conduit.
Claims (2)
1. a small-bend radius aviation conduit elbows shaping mould, comprise patrix (12) and counterdie (11), it is characterized in that: the cavity (6) forming after patrix (12) and counterdie (11) fasten is the shape after guiding-tube bend, two ends at cavity (6) are respectively equipped with limiting stand, and limiting stand is provided with the fairlead (1) coaxial with cavity (6) two ends; In a fairlead (1) therein, be provided with flexible mandrel (2), flexible mandrel (2) is connected with low-pressure piston (10) by connecting rod (9); In another fairlead (1), be provided with packing ring (4), the outer face of packing ring (4) coordinates high pressure piston (5), and low-pressure piston (10) is coaxially slidably matched with corresponding fairlead (1) respectively with high pressure piston (5).
2. small-bend radius aviation conduit elbows shaping mould as claimed in claim 1, is characterized in that: described counterdie (11) is provided with guide pillar (8), and patrix (12) is provided with guide pin bushing (7), and the position of guide pin bushing (7) is corresponding with the position of guide pillar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308115.2U CN203991975U (en) | 2014-06-11 | 2014-06-11 | Small-bend radius aviation conduit elbows shaping mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308115.2U CN203991975U (en) | 2014-06-11 | 2014-06-11 | Small-bend radius aviation conduit elbows shaping mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203991975U true CN203991975U (en) | 2014-12-10 |
Family
ID=52032040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308115.2U Expired - Fee Related CN203991975U (en) | 2014-06-11 | 2014-06-11 | Small-bend radius aviation conduit elbows shaping mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203991975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043734A (en) * | 2014-06-11 | 2014-09-17 | 沈阳飞机工业（集团）有限公司 | Small-bending-radius aviation conduit bend forming die and forming method thereof |
-
2014
- 2014-06-11 CN CN201420308115.2U patent/CN203991975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043734A (en) * | 2014-06-11 | 2014-09-17 | 沈阳飞机工业（集团）有限公司 | Small-bending-radius aviation conduit bend forming die and forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |