CN106734482B - A kind of high intensity high-precision small-angle method for manufacturing parts - Google Patents
A kind of high intensity high-precision small-angle method for manufacturing parts Download PDFInfo
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- CN106734482B CN106734482B CN201611096663.3A CN201611096663A CN106734482B CN 106734482 B CN106734482 B CN 106734482B CN 201611096663 A CN201611096663 A CN 201611096663A CN 106734482 B CN106734482 B CN 106734482B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000009987 spinning Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 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
- 238000010586 diagram Methods 0.000 description 7
- 238000005242 forging Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000007812 deficiency 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
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of high-intensitive high-precision small-angle method for manufacturing parts, belong to accurate Technology of Plastic Processing field, the following steps are included: 1) obtain blank using machining process, 2) high-strength high-precision small-angle part forming is completed using cold spinning process, 3) according to drawing requirement, subsequent machining is completed to get product；Product strength produced by the present invention is high, forming accuracy is good, good product consistency, and the tissue of part and mechanical performance, which obtain improving product quality, after forming greatly improves；Blank preparation method of the present invention is simple, and using the once-forming acquisition small-angle part of cold spinning technique, easy to operate, production process is greatly simplified, and rotary pressing processing beat is fast, high production efficiency；The disadvantages of obtaining small-angle part using cold working mode, overcoming the injury risk that traditional forging-ring machine adds not high, the coiling welded process gas of stock utilization to human body, 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 high-intensitive high-precision small-angle part manufacturings
Method.
Background technique
Small-angle part is the common part of one of machine-building, 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.
Currently, the processing and manufacturing of small-angle part is that the process that coiling welded or forging-ring machine adds is completed mostly, main work
It is as follows that skill is insufficient: (a) product strength is low: product strength is close with base material, and integral strength is relatively low, especially commissure intensity
Weaken more serious, often the 90% of insufficient base material；(b) dimensional accuracy is low: boring class part for long, forging-ring machine adds the wall of product
Thick tolerance is larger, often beyond 0.2mm；The wall thickness of coiling welded product will introduce plate wall thickness deviation, further, since commissure exists
Welding stress and welding deformation, product circularity etc. is poor, and consistency is also bad；(c) process is more, and production efficiency is lower；(d) it produces
Product application risk hidden danger is high: for being welded part, weld seam detection is relatively complicated, the potential wind for often becoming follow-up test and using
Dangerous hidden danger.
It for conical part, is presently mainly obtained using the process of slab shear spinning, but for cone angle deficiency
15 ° of small-angle part, since the risks such as peeling, rupture during traditional slab shear spinning are high, there are technical bottlenecks.
Therefore, the present invention will solve the Key technique problem that high-strength high-precision small-angle part is obtained using spinning process.
Summary of the invention
The object of the invention is that a kind of high-intensitive high-precision small-angle method for manufacturing parts is provided, to solve above-mentioned ask
Topic.
To achieve the goals above, the technical solution adopted by the present invention is that such: a kind of high intensity high-precision small-angle
Method for manufacturing parts, comprising 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, subsequent machining is completed to get product.
Above-mentioned steps 1) in, blank condition of heat treatment is that producer can directly supply state, such as O state, annealed state, is not necessarily to
Row heat treatment again, has saved mass production cost and period；
Above-mentioned steps 2) in, part strength height, the precision for processing acquisition are good, and common intensity can achieve the 150% of base material
~200%, precision is with diameterFor part, wall thickness tolerance be can control within 0.1mm, and roundness tolerance can be controlled
System is within 0.4mm etc.；In addition, once-forming using cold spinning process, whole process is without heating etc., required mold
Only a set of, high production efficiency, manufacturing cost is low；
Above-mentioned steps 3) in, it is machined primarily directed to conical part end clout etc., difficulty of processing is extremely low, efficiency pole
It is high
As a preferred technical scheme: in step 1), 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；It further reduced the difficulty, cost and period of machining.
Compared with the prior art, the advantages of the present invention are as follows:
1) good product quality: product strength is high, forming accuracy is good, good product consistency, the tissue and machine of part after forming
Tool performance is improved, and tensile strength is promoted to 415MPa or more from 315MPa, and compared with traditional handicraft, product quality mentions significantly
It is high；
2) high production efficiency: blank preparation method of the present invention is simple, using the once-forming acquisition small-angle of cold spinning technique
Part, easy to operate, production process is greatly simplified, rotary pressing processing beat is fast, high production efficiency 50% or more；
3) environmentally protective: the present invention obtains small-angle part using cold working mode, adds material sharp compared to traditional forging-ring machine
About 40% is improved with rate, overcomes the disadvantages of injury risk of the coiling welded process gas to human body, while also saving a large amount of energy
Source.
Detailed description of the invention
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 is the small-angle part tail top plate schematic diagram 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: 1, spinning mandrel；2, spinning roller；3, tail top plate；4, material returned disk；5, blank.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Embodiment:
The present embodiment elaborates by taking certain small-angle method for manufacturing parts as an example and obtains such part using spinning process
Key technique problem.The present embodiment target product material is 5A06, and structure size is 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 is more demanding, and product strength is also remote
Higher than this index of base material tensile strength 315Mpa.
The processing scheme that the present embodiment determines is " machining (forging stock)-spinning-machining (finished product) ".Wherein, it adopts
The forging stock supply of material state of purchase is 5A06-O, and raw material standards is executed by GJB2351-1995.
To forging stock machining after, obtain spinning before blank as shown in Fig. 2, the blank design process are as follows: 1) firstly, according to
According to cold working hardening rule and empirical data, totality reduction about 45% is determined, and then acquire blank wall thickness2) secondly, acquiring cone angle according to shear spinning sine law
Finally, according to plastic deformation constancy of volume rule, blank clear length L=595mm is acquired, consideration machine adds surplus to take L ˊ=630mm；
The present embodiment small-angle part mould pressing mold critical component and structure are as shown in figure 3, include spinning mandrel 1
(its structure such as Fig. 4), spinning roller 2 (its structure such as Fig. 5), tail top plate 3 (its structure such as Fig. 6), material returned disk 4 (its structure such as Fig. 7).Its
In, spinning mandrel 1 is connect by spindle flange disk with machine spindle, and spinning roller 2 is connect by spinning roller axis with rotary wheel base, tail top plate 3
It is connect by tail top installation set with equipment tail top, material returned disk 4 is connect with equipment material returned oil cylinder.The equipment that the present embodiment uses is
CZX1500/2CNC cnc spinning machine, equipment use Siemens 840D control system, realize spinning core by servo-drive main shaft
The axial feed motion of axis 1 and rotation are realized the radial direction and axial feed motion of spinning roller 2 by servo-drive rotary wheel base, passed through
Driving tailstock hydraulic cylinder realizes that tail top plate 3 holds out against blank, realizes material returned disk 4 to the part material returned by driving hydraulic cylinder；
After blank 5 is loaded onto spinning mandrel 1, driving tailstock hydraulic cylinder holds out against blank 5 by tail top plate 3, passes through equipment
Tooling, adjustment 2 central axis of spinning roller and 1 central axis of spinning mandrel are in 25 ° of angles；
Part process is controlled using full auto-programs, by the processing route of shear spinning, completes rotary pressing processing work
Make.Entire step is all made of the completion of spinning roller 2, and spinning roller size is as shown in figure 5, equipment revolving speed is 100r/ during rotary pressing processing
Min, spinning roller feed speed are 80mm/min.2.5 ± 0.1mm of part wall thickness after forming, circular section diameter tolerance≤0.4mm；
When blanking, hydraulic material returned oil cylinder is driven, pushes part to complete the material returned by material returned disk 4；
Finally according to drawing requirement, only part both ends are machined using lathe, obtain qualified products.
The present invention is not disclosed technology and belongs to common sense well known to those skilled in the art.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (2)
1. a kind of high intensity high-precision small-angle method for manufacturing parts, which 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, subsequent machining is completed to get product；
Wherein, the blank cone angle is 25 °；
The cold spinning technique is a cold spinning, and whole process is without heating；Equipment revolving speed in the cold spinning process
For 100r/min, spinning roller feed speed is 80mm/min；
The material of the small-angle part is 5A06 aluminium alloy, wall thickness 4.5mm, after processing is completed cone angle size be 13.84 °,
Wall thickness is 2.5 ± 0.1mm.
2. high intensity high-precision small-angle method for manufacturing parts according to claim 1, it is characterised in that: in step 1),
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 |
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| CN201611096663.3A 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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| CN106734482A CN106734482A (en) | 2017-05-31 |
| CN106734482B true CN106734482B (en) | 2019-09-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111804795A (en) * | 2020-06-24 | 2020-10-23 | 江苏华阳管业股份有限公司 | Temperature-controllable cavity improving device for ultra-low temperature processing for spinning |
| 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 |
Citations (4)
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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 |
| CN105537449A (en) * | 2016-01-26 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Spinning machining method for aluminium alloy thin-walled revolution body |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2210682T3 (en) * | 2009-07-09 | 2012-07-31 | Leifeld Metal Spinning Ag | Method and apparatus for spinning |
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2016
- 2016-12-02 CN CN201611096663.3A patent/CN106734482B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105537449A (en) * | 2016-01-26 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Spinning machining method for aluminium alloy thin-walled revolution body |
| 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 |
Non-Patent Citations (1)
| Title |
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| 小锥角蒙皮旋压成形试验研究;尹萍等;《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》;20111231;第500-502页 * |
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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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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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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 |