CN109013919B - Multi-dimensional forming die and forming method for large-depth variable-section door frame of airplane - Google Patents
Multi-dimensional forming die and forming method for large-depth variable-section door frame of airplane Download PDFInfo
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- CN109013919B CN109013919B CN201811021958.3A CN201811021958A CN109013919B CN 109013919 B CN109013919 B CN 109013919B CN 201811021958 A CN201811021958 A CN 201811021958A CN 109013919 B CN109013919 B CN 109013919B
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- die
- male die
- male
- split
- driving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The application provides a multi-dimensional forming die and a forming method for a large-depth variable-section door frame of an airplane. When in use, the woolen material is contacted with the pressing body and the split male die, so as to realize the transmission of forming force. The driving spring supports the pressing assembly and the male die assembly, and linkage of the die is achieved. The split male die moves downwards and towards two sides by utilizing the die linkage and the driving slide block and the sliding groove in the male die assembly, so that the multi-dimensional forming of the part is realized. And forming the part supplementary forming area by utilizing the movement of the supplementary male die.
Description
Technical Field
The application relates to the technical field of manufacturing of airplane parts, in particular to a forming die and a forming method of a large-depth U-shaped deformed section aluminum alloy door frame for an airplane.
Background
The U-shaped variable-cross-section aluminum alloy door frame part of the aircraft is a part with a U-shaped cross section and a variable cross section and also has a U-shaped overall shape, and is mainly applied to the installation and fixation of an aircraft cabin door on an aircraft body. The aviation manufacturing industry in China basically adopts a processing method of plastic deformation of aluminum alloy at normal temperature for processing U-shaped deformed section aluminum alloy door frame parts for airplanes. At present, the traditional aluminum alloy door frame adopts a forming method of two procedures: a first procedure, ordinary drawing forming; and a second procedure, the shape correction die corrects shapes. The common drawing forming die consists of a lower die plate, a male die, a blank holder, a female die, a guide device and the like, is only suitable for small-depth parts, and requires multiple sets of dies to carry out multiple drawing when the drawing coefficient of the parts is smaller. Because the depth of the U-shaped deformed section aluminum alloy door frame of the airplane is large, the drawing depth is close to 400mm, and the drawing coefficient of the part is small. In the common drawing forming process of parts, the bottom and the round corner parts of the drawn parts are cracked, so that the rejection rate is high. When a plurality of deep drawing dies are needed to be put into use, the cost is high. In the second procedure, the manual shape correction of the shape correction die has high technical requirements on workers and lower manufacturing efficiency. Therefore, a method which is simple in operation structure, capable of effectively eliminating cracks at the bottom of parts and low in rejection rate is needed to be considered to solve the problem of forming the large-depth U-shaped deformed section aluminum alloy door frame of the airplane.
Disclosure of Invention
The application aims to provide a multi-dimensional forming method of a large-depth variable-section door frame of an airplane, which can be suitable for the design and manufacture of various door frame parts of the airplane.
In order to achieve the purpose, the application adopts the following technical scheme:
the multi-dimensional forming die for the large-depth variable-section door frame of the airplane comprises an upper die assembly, a pressing assembly, a male die assembly and a lower die assembly. The upper die assembly comprises an upper die holder and a female die, the female die is fixed on the lower surface of the upper die holder, and four guide holes are uniformly distributed at the lower ends of four edges of the female die; the material pressing assembly comprises a material pressing body, a first limiting sleeve and a first driving spring. The pressing body is provided with a pressing block and a flange, and the middle positions of the pressing block and the flange are through grooves. The flange plate comprises four guide holes corresponding to the guide holes of the female die and four mounting holes for mounting the first driving springs; the male die assembly comprises a male die clamp, a split male die, a second driving spring and a male die homing device. The male die clamp comprises four guide holes corresponding to the guide holes of the female die, four avoidance holes of the first driving spring and four mounting holes of the second driving spring, a T-shaped sliding groove is arranged in the middle of the upper surface of the male die clamp, the split male die is positioned in the sliding groove, male die homing devices are arranged at two ends of the sliding groove, and a driving sliding block positioning hole is arranged in the center of the sliding groove; the split male die consists of a left male die and a right male die, the middle part of the split male die is a driving surface, and a male die homing hole is formed at the lower end of the split male die; springs in the male die homing device are respectively connected with homing holes of the split male dies; the lower die assembly comprises a lower die body, a second limit sleeve, a driving sliding block, a guide column and a complementary male die. The lower die body is provided with four guide post mounting holes, a first driving spring mounting hole corresponding to the pressing body and a second driving spring mounting hole corresponding to the male die clamp. The driving slide block is a T-shaped hollow body, a complementary male die positioning hole is arranged in the center of the driving slide block, and the driving slide block is arranged on the upper surface of the lower die body. The second limit sleeve is sleeved on the outer surface of the guide post and is arranged on the upper surface of the lower die body.
A method of forming using the forming die, comprising the steps of:
1, placing a preformed U-shaped woolen on a pressing body, utilizing the lower surface of the U-shaped woolen to be attached and positioned with the surface of the pressing body, enabling a guide hole on a female die to be contacted with a guide post of a lower die assembly for guiding, enabling an upper die assembly to move downwards, enabling the surface of the female die to be contacted with the upper surface of the U-shaped woolen, and enabling the lower surface of the female die to be contacted with the upper surface of a first limit sleeve;
2, the split male die is contacted with the part blank, the upper die assembly and the material pressing body simultaneously move downwards, the first driving spring starts to compress, the blank drives the split male die to move downwards, the split male die drives the male die clamp to move downwards, and the second driving spring starts to compress;
3, the driving surface of the split male mold is contacted with the driving slide block, so that the left male mold and the right male mold slide to two sides in the sliding groove of the male mold clamp respectively, and after the split male mold slides, the spring in the male mold homing device is compressed;
4, the upper die assembly, the pressing body and the male die assembly continue to move downwards, the first driving spring and the second driving spring are continuously compressed, the split male die continues to move downwards and slide along the sliding groove until the lower surface of the male die clamp is contacted with the second limiting sleeve, the movement is stopped, and at the moment, the split male die is in a state of being separated into two halves, and a complementary forming area is arranged between the two halves;
5, the supplementary male die slides upwards in the locating hole of the supplementary male die, and enters a supplementary forming area to carry out final forming of the part;
6, after the part is formed, the upper die assembly moves upwards, the first driving spring, the second driving spring and the spring in the male die homing device return, the left male die and the right male die slide from two ends to the center respectively in the sliding groove, and finally return to the initial positions.
The application utilizes the basic principles of stamping and profiling, and utilizes the contact of the woolen material with the pressing body and the split male die to realize the transmission of forming force in the forming process. And the driving spring is used for supporting the pressing assembly and the male die assembly, so that the linkage of the die in the part forming process is realized. The split male die moves downwards and towards two sides by utilizing the die linkage and the driving slide block and the sliding groove in the male die assembly, so that the multi-dimensional forming of the part is realized. And forming the part supplementary forming area by utilizing the movement of the supplementary male die. Finally, the high-depth U-shaped variable cross section door frame of the airplane is accurately formed with low cost and high efficiency, and the high-efficiency U-shaped variable cross section door frame has universal applicability to door frame parts of the airplane.
The present application will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a part construction diagram;
FIG. 2 is a diagram of a woolen structure;
FIG. 3 is a diagram showing the outline structure of a multi-dimensional forming die of a large-depth variable-section door frame;
FIG. 4 is an exploded view of a multi-dimensional forming die for a large depth variable cross-section door frame;
FIG. 5 is a diagram of a press body structure;
FIG. 6 is a block diagram of a male mold clamp;
FIG. 7 is a block diagram of a split male die;
FIG. 8 is a block diagram of the lower die assembly;
in fig. 1 to 8: 1. the upper surface of the woolen; 2. the lower surface of the woolen; 3. an upper die assembly; 4. a pressing assembly; 5. a male die assembly; 6. a lower die assembly; 7. an upper die holder; 8. a female die; 9. a guide hole; 10. pressing a material body; 11. a first stop collar; 12. a first drive spring; 13. yang Moga; 14. a split male die; 15. a second drive spring; 16. a male die homing device; 17. a lower die body; 18. the second limit sleeve; 19. driving a sliding block; 20. a guide post; 21. supplementing a male die; 22. pressing a material block; 23. a flange plate; 24. a pass through slot; 25. a first drive spring mounting hole; 26. avoiding holes; 27. a second drive spring mounting hole; 28. a sliding groove; 29. driving the slide block positioning hole; 30. a left male die; 31. a right male die; 32. a driving surface; 33. a homing hole; 34. a guide post mounting hole; 35. supplementing a positioning hole of the male die;
Detailed Description
Referring to fig. 1-8, the multi-dimensional forming die for the large-depth U-shaped deformed section aluminum alloy door frame of the airplane comprises an upper die assembly 3, a pressing assembly 4, a male die assembly 5 and a lower die assembly 6. The upper die assembly 3 comprises an upper die holder 7 and a female die 8, wherein the female die 8 is fixed on the lower surface of the upper die holder 7, and four guide holes are uniformly distributed at the lower ends of four edges of the female die 8; the pressing assembly 4 comprises a pressing body 10, a first limiting sleeve 11 and a first driving spring 12. The pressing body 10 is provided with a pressing block 22 and a flange plate 23, the pressing block 22 is divided into two parts, and a through groove 24 is arranged in the middle. The flange plate 23 comprises four guide holes 9 corresponding to the guide holes of the female die 8 and four mounting holes 25 for mounting the first driving spring; the male die assembly 5 comprises a male die clamp 13, a split male die 14, a second drive spring 15 and a male die homing device 16. The male die clamp 13 comprises four guide holes 9 corresponding to guide holes of the female die 8, four avoidance holes 26 of the first driving spring 12 and four mounting holes 27 of the second driving spring 15, a T-shaped sliding groove 28 is arranged in the middle of the upper surface of the male die clamp 13, the split male die 14 is positioned in the sliding groove 28, male die homing devices 16 are arranged at two ends of the sliding groove 28, and a driving slide block positioning hole 29 is arranged in the center of the sliding groove 28; the split male die 14 consists of a left male die 30 and a right male die 31, a driving surface 32 is arranged in the middle of the split male die 14, and a male die homing hole 33 is arranged at the lower end of the split male die 14; springs in the male die homing device 16 are respectively connected with homing holes 33 of the split male die 14; the lower die assembly 6 comprises a lower die body 17, a second limiting sleeve 18, a driving slide block 19, a guide post 20 and a complementary male die 21. The lower die body 17 is provided with four guide post mounting holes 34, a first driving spring mounting hole 25 corresponding to the pressing body 10 and a second driving spring mounting hole 27 corresponding to the male die clamp 13. The driving slide block 19 is a T-shaped hollow body, a complementary male die positioning hole 35 is arranged in the center position, and the driving slide block is arranged on the upper surface of the lower die body 17. The second stop collar 18 is sleeved on the outer surface of the guide post and is mounted on the upper surface of the lower die body 17.
When the die is used, 1) the preformed U-shaped woolen is placed on the pressing body 10, the lower surface 2 of the U-shaped woolen and the molded surface of the pressing body 10 are utilized for fitting and positioning, the guide hole 9 on the female die 8 is contacted with the guide post 20 of the lower die assembly 6 for guiding, the upper die assembly 3 moves downwards, the molded surface of the female die 8 is contacted with the upper surface 1 of the U-shaped woolen, and the lower surface of the female die 8 is contacted with the upper surface of the first limiting sleeve 11. 2) At this time, the split male die 14 contacts with the part blank to start forming the part, the upper die assembly 3 and the blank pressing body 10 simultaneously descend, the first driving spring 12 starts to compress, the blank drives the split male die 14 to move downwards, the split male die 14 drives the male die clamp 13 to move downwards, and the second driving spring 15 starts to compress. 3) The driving surface 32 of the split male die 14 is contacted with the driving slide block 19, so that the left male die 30 and the right male die 31 slide towards two sides in the sliding groove 28 of the male die clamp 13 respectively, and after the split male die 14 slides, springs in the male die homing device 16 are compressed. 4) The upper die assembly 3, the pressing body 10 and the male die assembly 5 continue to move downwards, the first driving spring 12 and the second driving spring 15 are continuously compressed, the split male die 14 continues to move downwards and slide along the sliding groove 28 until the lower surface of the male die clamp 13 is contacted with the second limiting sleeve 15, and the movement is stopped. The split male die 14 is now in a split state with the complementary forming zone between the halves. 5) The supplemental male mold 21 slides upwardly in the supplemental male mold locating hole 35 into the supplemental forming area for final forming of the part. 6) After the part is formed, the upper die assembly 3 moves upwards, the first driving spring 12, the second driving spring 15 and the springs in the male die homing device 16 return, the left male die 30 and the right male die 31 slide from the two ends to the central position respectively in the sliding groove 28, and finally return to the initial positions.
Claims (1)
1. The multi-dimensional forming method for the large-depth variable-section door frame of the airplane is characterized by comprising a forming die, wherein the forming die comprises an upper die assembly, a pressing assembly, a male die assembly and a lower die assembly, the upper die assembly comprises an upper die seat and a female die, the female die is fixed on the lower surface of the upper die seat, and four guide holes are uniformly distributed at the lower ends of four edges of the female die; the pressing assembly comprises a pressing body, a first limiting sleeve and a first driving spring, wherein the pressing body is provided with a pressing block and a flange plate, the pressing block is divided into two parts, the middle part of the pressing block is provided with a through groove, and the flange plate comprises a hole corresponding to a guide hole of a female die and four mounting holes for mounting the first driving spring; the male die assembly comprises a male die clamp, a split male die, a second driving spring and a male die homing device, wherein holes corresponding to guide holes of the female die, four avoidance holes of the first driving spring and four mounting holes of the second driving spring are formed in the male die clamp, a T-shaped sliding groove is formed in the middle of the upper surface of the male die clamp, the split male die is positioned in the sliding groove, male die homing devices are arranged at two ends of the sliding groove, and a driving sliding block positioning hole is formed in the center of the sliding groove; the split male die consists of a left male die and a right male die, the middle part of the split male die is a driving surface, and a male die homing hole is arranged at the lower end of the split male die; springs in the male die homing device are respectively connected with homing holes of the split male dies; the lower die assembly contains a lower die body, a second limit sleeve, a driving sliding block, a guide post and a complementary male die, wherein the lower die body is provided with four guide post mounting holes, a first driving spring mounting hole corresponding to a pressing body and a second driving spring mounting hole corresponding to a male die clamp, the driving sliding block is a T-shaped hollow body, a complementary male die positioning hole is arranged in the center of the driving sliding block and is arranged on the upper surface of the lower die body, the second limit sleeve is sleeved on the outer surface of the guide post and is arranged on the upper surface of the lower die body, and the method for forming by using the forming die specifically comprises the following steps:
1-1, placing a preformed U-shaped woolen on a pressing body, utilizing the lower surface of the U-shaped woolen to be attached to the surface of the pressing body for positioning, enabling a guide hole on a female die to be contacted with a guide post of a lower die assembly for guiding, enabling an upper die assembly to move downwards, enabling the surface of the female die to be contacted with the upper surface of the U-shaped woolen, and enabling the lower surface of the female die to be contacted with the upper surface of a first limiting sleeve;
1-2, contacting the split male die with part burrs, enabling an upper die assembly and a pressing body to simultaneously descend, enabling a first driving spring to start compressing, enabling the burrs to drive the split male die to move downwards, enabling a split male die to drive a male die clamp to move downwards, and enabling a second driving spring to start compressing;
1-3, the driving surface of the split male die is contacted with the driving slide block, so that the left male die and the right male die respectively slide towards two sides in the sliding groove of the male die clamp, and after the split male die slides, springs in the male die homing device are compressed;
1-4 the upper die assembly, the pressing body and the male die assembly continue to move downwards, the first driving spring and the second driving spring are continuously compressed, the split male die continues to move downwards and slide along the sliding groove until the lower surface of the male die clamp is contacted with the second limiting sleeve, the movement is stopped, and the split male die is in a state of being separated into two halves at the moment, and a complementary forming area is arranged between the two halves;
1-5, the supplementary male mold slides upwards in a locating hole of the supplementary male mold, and enters a supplementary forming area to carry out final forming of the part;
after the 1-6 parts are formed, the upper die assembly moves upwards, the first driving spring, the second driving spring and the spring in the male die homing device return, the left male die and the right male die slide from two ends to the center respectively in the sliding grooves, and finally return to the initial positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021958.3A CN109013919B (en) | 2018-09-03 | 2018-09-03 | Multi-dimensional forming die and forming method for large-depth variable-section door frame of airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021958.3A CN109013919B (en) | 2018-09-03 | 2018-09-03 | Multi-dimensional forming die and forming method for large-depth variable-section door frame of airplane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109013919A CN109013919A (en) | 2018-12-18 |
| CN109013919B true CN109013919B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811021958.3A Active CN109013919B (en) | 2018-09-03 | 2018-09-03 | Multi-dimensional forming die and forming method for large-depth variable-section door frame of airplane |
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| CN (1) | CN109013919B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770251A (en) * | 2021-08-20 | 2021-12-10 | 西安飞机工业（集团）有限责任公司 | Forming die and forming method for groove type aluminum alloy frame type parts |
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| CN201618796U (en) * | 2009-12-04 | 2010-11-03 | 江苏新炜实业有限公司 | Cold stamping die of aluminium foil container |
| CN105215199A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Bending mould |
| CN205463911U (en) * | 2016-01-20 | 2016-08-17 | 东莞市铭科精技五金制品有限公司 | Bilateral fashioned slider device simultaneously |
| JP2018043260A (en) * | 2016-09-13 | 2018-03-22 | 三菱アルミニウム株式会社 | Apparatus and method for manufacturing three-dimensional molding formed of aluminum resin composite laminated plate |
| CN108080513A (en) * | 2017-12-14 | 2018-05-29 | 徐州格雷安环保设备有限公司 | A kind of pressure fan housing riveting one frock |
| CN209021073U (en) * | 2018-09-03 | 2019-06-25 | 西安飞机工业（集团）有限责任公司 | A kind of big depth variable cross-section doorframe various dimensions shaping dies of aircraft |
-
2018
- 2018-09-03 CN CN201811021958.3A patent/CN109013919B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201618796U (en) * | 2009-12-04 | 2010-11-03 | 江苏新炜实业有限公司 | Cold stamping die of aluminium foil container |
| CN105215199A (en) * | 2015-11-16 | 2016-01-06 | 重庆持恒模具有限公司 | Bending mould |
| CN205463911U (en) * | 2016-01-20 | 2016-08-17 | 东莞市铭科精技五金制品有限公司 | Bilateral fashioned slider device simultaneously |
| JP2018043260A (en) * | 2016-09-13 | 2018-03-22 | 三菱アルミニウム株式会社 | Apparatus and method for manufacturing three-dimensional molding formed of aluminum resin composite laminated plate |
| CN108080513A (en) * | 2017-12-14 | 2018-05-29 | 徐州格雷安环保设备有限公司 | A kind of pressure fan housing riveting one frock |
| CN209021073U (en) * | 2018-09-03 | 2019-06-25 | 西安飞机工业（集团）有限责任公司 | A kind of big depth variable cross-section doorframe various dimensions shaping dies of aircraft |
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| CN109013919A (en) | 2018-12-18 |
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