CN106734482A - A kind of high intensity high accuracy small-angle method for manufacturing parts - Google Patents
A kind of high intensity high accuracy small-angle method for manufacturing parts Download PDFInfo
- Publication number
- CN106734482A CN106734482A CN201611096663.3A CN201611096663A CN106734482A CN 106734482 A CN106734482 A CN 106734482A CN 201611096663 A CN201611096663 A CN 201611096663A CN 106734482 A CN106734482 A CN 106734482A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000009987 spinning Methods 0.000 claims abstract description 31
- 239000000047 product Substances 0.000 claims abstract description 25
- 238000003754 machining Methods 0.000 claims abstract description 9
- 239000012467 final product Substances 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000005482 strain hardening Methods 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 238000005242 forging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
Abstract
The invention discloses a kind of high intensity high accuracy small-angle method for manufacturing parts, belong to accurate Technology of Plastic Processing field, comprise the following steps：1）Blank, 2 are obtained using machining process）High-strength high-precision small-angle part forming, 3 are completed using cold spinning process）According to drawing requirement, follow-up machining is completed, obtain final product product；Product strength of the invention obtained is high, forming accuracy is good, good product consistency, and the tissue and mechanical performance of part are obtained improving product quality and greatly improved after shaping；Blank preparation method of the present invention is simple, and small-angle part is obtained using cold spinning technique is once-forming, and simple to operate, production process is greatly simplified, and rotary pressing processing beat is fast, and production efficiency is high；Obtain small-angle part using cold working mode, overcome traditional forging-ring machine plus stock utilization is high, coiling welded process gas to the injury risk of human body the shortcomings of, while also saving mass energy.
Description
Technical field
The present invention relates to accurate Technology of Plastic Processing field, more particularly to a kind of manufacture of high intensity high accuracy small-angle part
Method.
Background technology
Small-angle part is a kind of common part in machine-building, and its application is increasingly wide with the development of science and technology
It is general, it is related to many application fields such as Aeronautics and Astronautics, pressure vessel.
At present, the processing and manufacturing of small-angle part is mostly that the process that coiling welded or forging-ring machine adds is completed, its main work
It is as follows that skill is not enough：A () product strength is low：Product strength is close with mother metal, and bulk strength is relatively low, especially commissure intensity
Weaken more seriously, often the 90% of not enough mother metal；B () dimensional accuracy is low：For cone class part long, forging-ring machine adds the wall of product
Thick tolerance is larger, often beyond 0.2mm；The wall thickness of coiling welded product is introduced into sheet material wall thickness deviation, further, since commissure is present
Welding stress and welding deformation, product circularity etc. are poor, and uniformity is also bad；C () operation is more, production efficiency is relatively low；D () produces
Product application risk hidden danger is high：For being welded part, weld seam detection is relatively complicated, often as follow-up test and the potential wind for using
Dangerous hidden danger.
For conical part, presently mainly obtained using the process of slab shear spinning, but it is not enough for cone angle
, because the peeling during traditional slab shear spinning, rupture equivalent risk are high, there is technical bottleneck in 15 ° of small-angle part.
Therefore, the present invention will solve to obtain the Key technique problem of high-strength high-precision small-angle part using spinning process.
The content of the invention
The purpose of the present invention is that a kind of high intensity high accuracy small-angle method for manufacturing parts of offer, to solve above-mentioned asking
Topic.
To achieve these goals, the technical solution adopted by the present invention is such：A kind of high intensity high accuracy small-angle
Method for manufacturing parts, comprises the following steps：
1) blank is obtained using machining process；
2) high-strength high-precision small-angle part forming is completed using cold spinning process；
3) according to drawing requirement, follow-up machining is completed, obtains final product product.
Above-mentioned steps 1) in, blank condition of heat treatment is that producer can directly supply state, such as O states, annealed state, without
Row heat treatment, has saved a large amount of production cost and periods again；
Above-mentioned steps 2) in, process obtain part strength is high, precision is good, common intensity can reach the 150% of mother metal
~200%, precision is with diameterAs a example by part, wall thickness tolerance can be controlled within 0.1mm, and roundness tolerance can be controlled
System is within 0.4mm etc.；Additionally, once-forming using cold spinning process, whole process is without heating etc., required mould
Only a set of, production efficiency is high, low cost of manufacture；
Above-mentioned steps 3) in, it is machined primarily directed to conical part termination clout etc., difficulty of processing is extremely low, efficiency pole
It is high
As preferred technical scheme：Step 1) in, the wall thickness of the blank is 2~3 times of product wall thickness, charge length
It is the 1/3~1/2 of product；Reduce further difficulty, cost and the cycle of machining.
Compared with prior art, the advantage of the invention is that：
1) good product quality：Product strength is high, forming accuracy is good, good product consistency, the tissue and machine of part after shaping
Tool performance is improved, and tensile strength is promoted to more than 415MPa from 315MPa, and compared with traditional handicraft, product quality is carried significantly
It is high；
2) production efficiency is high：Blank preparation method of the present invention is simple, using the once-forming acquisition small-angle of cold spinning technique
Part, simple to operate, production process is greatly simplified, rotary pressing processing beat is fast, and production efficiency is high by more than 50%；
3) environmental protection：The present invention obtains small-angle part using cold working mode, and material profit is added compared to traditional forging-ring machine
The shortcomings of about 40% being improve with rate, overcome coiling welded process gas to the injury risk of human body, while also saving a large amount of energy
Source.
Brief description of the drawings
Fig. 1 is the small-angle part schematic diagram of the embodiment of the present invention；
Fig. 2 is the small-angle part blank schematic diagram of the embodiment of the present invention；
Fig. 3 is the small-angle part mould pressing schematic diagram of the embodiment of the present invention；
Fig. 4 is the small-angle part spinning mandrel schematic diagram of the embodiment of the present invention；
Fig. 5 is the small-angle part spinning roller schematic diagram of the embodiment of the present invention；
Fig. 6 takes over a business schematic diagram for the small-angle part tail of the embodiment of the present invention；
Fig. 7 is the small-angle part material returned disk schematic diagram of the embodiment of the present invention.
In Fig. 3：1st, spinning mandrel；2nd, spinning roller；3rd, tail is taken over a business；4th, material returned disk；5th, blank.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment：
The present embodiment is elaborated and obtains such part using spinning process by taking certain small-angle method for manufacturing parts as an example
Key technique problem.The present embodiment target product material is 5A06, physical dimension as shown in figure 1, wherein wall thickness requires δ=2.5
± 0.05mm, intensity requirement σ s >=309Mpa, σ b >=417MPa.In general, Product Precision requirement is higher, and product strength is also remote
Higher than this index of mother metal tensile strength 315Mpa.
The processing scheme that the present embodiment determines is " machining (forging stock)-spinning-machining (finished product) ".Wherein, adopt
The forging stock supply of material state of purchase is 5A06-O, and raw material standards is performed by GJB2351-1995.
After being machined to forging stock, blank is as shown in Fig. 2 the design process of the blank is before obtaining spinning：1) first, according to
According to cold working hardening rule and empirical data, it is determined that overall reduction about 45%, and then try to achieve blank wall thickness2) secondly, according to shear spinning sine law, cone angle is tried to achieve
Finally, according to plastic deformation constancy of volume rule, blank clear length L=595mm is tried to achieve, it is considered to which machine adds surplus to take L ˊ=630mm；
The present embodiment small-angle part mould pressing mould critical component and structure are as shown in figure 3, including spinning mandrel 1
(its structure such as Fig. 4), spinning roller 2 (its structure such as Fig. 5), tail take over a business 3 (its structure such as Fig. 6), material returned disk 4 (its structure such as Fig. 7).Its
In, spinning mandrel 1 is connected by spindle flange disk with machine spindle, and spinning roller 2 is connected by spinning roller axle with rotary wheel base, and tail takes over a business 3
It is connected with equipment tail top by tail top installation set, material returned disk 4 is connected with equipment material returned oil cylinder.The equipment that the present embodiment is used is
CZX1500/2CNC cnc spinning machines, equipment uses Siemens's 840D control systems, and spinning core is realized by servo-drive main shaft
The axial feed motion of axle 1 and rotation, the radial direction and axial feed motion of spinning roller 2 are realized by servo-drive rotary wheel base, are passed through
Drive tailstock hydraulic jack to realize that tail is taken over a business 3 and holds out against blank, realize material returned disk 4 to the part material returned by driving hydraulic jack；
After blank 5 is loaded onto into spinning mandrel 1, drive tailstock hydraulic jack to take over a business 3 by tail and hold out against blank 5, by equipment
Frock, the adjustment central shaft of spinning roller 2 is in 25 ° of angles with the central shaft of spinning mandrel 1；
Part process, by the processing route of shear spinning, completes rotary pressing processing work using full auto-programs control
Make.Whole step is completed using spinning roller 2, and spinning roller size is as shown in figure 5, equipment rotating speed is 100r/ during rotary pressing processing
Min, spinning roller feed speed is 80mm/min.2.5 ± 0.1mm of part wall thickness after shaping, circular section diameter tolerance≤0.4mm；
During blanking, hydraulic pressure material returned oil cylinder is driven, promote part to complete the material returned by material returned disk 4；
It is final that only part two ends are machined using lathe according to drawing requirement, obtain qualified products.
The undisclosed technology of the present invention belongs to general knowledge as well known to those skilled in the art.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (2)
1. a kind of high intensity high accuracy small-angle method for manufacturing parts, it is characterised in that comprise the following steps：
1）Blank is obtained using machining process；
2）High-strength high-precision small-angle part forming is completed using cold spinning process；
3）According to drawing requirement, follow-up machining is completed, obtain final product product.
2. high intensity high accuracy small-angle method for manufacturing parts according to claim 1, it is characterised in that：Step 1）In,
The wall thickness of the blank is 2~3 times of product wall thickness, and charge length is the 1/3~1/2 of product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096663.3A CN106734482B (en) | 2016-12-02 | 2016-12-02 | A kind of high intensity high-precision small-angle method for manufacturing parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611096663.3A CN106734482B (en) | 2016-12-02 | 2016-12-02 | A kind of high intensity high-precision small-angle method for manufacturing parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734482A true CN106734482A (en) | 2017-05-31 |
| CN106734482B CN106734482B (en) | 2019-09-24 |
Family
ID=58884356
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611096663.3A Active CN106734482B (en) | 2016-12-02 | 2016-12-02 | A kind of high intensity high-precision small-angle method for manufacturing parts |
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| Country | Link |
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| CN (1) | CN106734482B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151630A (en) * | 2019-12-04 | 2020-05-15 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| CN111299976A (en) * | 2020-03-17 | 2020-06-19 | 三能器具（无锡）有限公司 | Method for processing semifinished product of spinning rough blank of flower nozzle |
| CN112317589A (en) * | 2020-11-16 | 2021-02-05 | 西安航天动力机械有限公司 | Process method for controlling angle and straightness accuracy of spinning cone |
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| CN201297160Y (en) * | 2008-11-20 | 2009-08-26 | 吉林市双林射孔器材有限责任公司 | Double-tapered shaped charge cover dedicated to perforating charge |
| CN201755611U (en) * | 2010-08-12 | 2011-03-09 | 浙江浩龙风机有限公司 | Flange spinning device matched with blower |
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| CN106141049A (en) * | 2016-08-31 | 2016-11-23 | 无锡派克新材料科技股份有限公司 | Small-bore steep-taper taper annular element forging and forming technology |
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2016
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Patent Citations (5)
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| CN201297160Y (en) * | 2008-11-20 | 2009-08-26 | 吉林市双林射孔器材有限责任公司 | Double-tapered shaped charge cover dedicated to perforating charge |
| JP2012532023A (en) * | 2009-07-09 | 2012-12-13 | ライフェルト メタル スピニング アーゲー | Stretched flow forming method and apparatus |
| CN201755611U (en) * | 2010-08-12 | 2011-03-09 | 浙江浩龙风机有限公司 | Flange spinning device matched with blower |
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Non-Patent Citations (1)
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| 尹萍等: "小锥角蒙皮旋压成形试验研究", 《第十二届全国塑性工程学术年会第四届全球华人塑性加工技术研讨会论文集》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151630A (en) * | 2019-12-04 | 2020-05-15 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| CN111151630B (en) * | 2019-12-04 | 2021-07-20 | 中国工程物理研究院机械制造工艺研究所 | Forming method of straight flange conical part |
| CN111299976A (en) * | 2020-03-17 | 2020-06-19 | 三能器具（无锡）有限公司 | Method for processing semifinished product of spinning rough blank of flower nozzle |
| CN112317589A (en) * | 2020-11-16 | 2021-02-05 | 西安航天动力机械有限公司 | Process method for controlling angle and straightness accuracy of spinning cone |
| CN112317589B (en) * | 2020-11-16 | 2023-11-10 | 西安航天动力机械有限公司 | Technological method for controlling angle and straightness accuracy of spinning cone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106734482B (en) | 2019-09-24 |
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| CB02 | Change of applicant information |
Address after: 610000 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Applicant after: SICHUAN AEROSPACE CHANGZHENG EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 610000 No. 189, Yi Du Avenue, Longquanyi District, Chengdu City, Chengdu, Sichuan. Applicant before: China Aerospace Science and Technology Corporation Changzheng Machinery Factory |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiupeng Inventor after: Cui Xuchang Inventor after: Chen Jianhua Inventor after: Xiong Qiuping Inventor after: Jiang Yan Inventor after: Hu Daijun Inventor after: Wang Weiping Inventor after: Liu Debo Inventor before: Wang Xiupeng Inventor before: Cui Xuchang Inventor before: Chen Jianhua Inventor before: Xiong Qiuping Inventor before: Jiang Yan |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: 610000 Chengdu 189 economic and Technological Development Zone (Longquanyi District), Sichuan. Patentee after: Chengdu Aerospace Long March Machinery Co.,Ltd. Country or region after: China Address before: 610000 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Patentee before: SICHUAN AEROSPACE CHANGZHENG EQUIPMENT MANUFACTURING Co.,Ltd. Country or region before: China |