CN113399529A - Composite forming method for paired wheel spinning and double-roller clamping spinning of thin-wall rotary part - Google Patents
Composite forming method for paired wheel spinning and double-roller clamping spinning of thin-wall rotary part Download PDFInfo
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- CN113399529A CN113399529A CN202110756976.1A CN202110756976A CN113399529A CN 113399529 A CN113399529 A CN 113399529A CN 202110756976 A CN202110756976 A CN 202110756976A CN 113399529 A CN113399529 A CN 113399529A
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- 238000009987 spinning Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
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Abstract
A composite forming method of thin-wall revolving body parts through paired wheel spinning and double-roller clamping spinning comprises the steps of firstly performing paired wheel spinning on thick-wall seamless pipe blanks to obtain seamless thin-wall cylindrical part blanks, and then forming complex molded surface parts through double-roller clamping spinning; when the paired wheels are spun, the deformation of the workpiece is symmetrical, the stress state is improved, the dimensional precision is improved, longitudinal welding seams can be eliminated, parts with different specifications do not need to be replaced by core moulds, and the equipment cost is low; the forming has the advantages of small forming load, high size precision, high surface quality, high material utilization rate and high processing efficiency.
Description
Technical Field
The invention relates to the technical field of plastic forming of thin-wall revolving body parts, in particular to a composite forming method of wheel spinning and double-roller clamping spinning of thin-wall revolving body parts.
Background
In the industrial production process, the thin-wall revolving body part with the complex molded surface is widely applied to various fields, such as a wind gathering cover for a wind gathering type wind driven generator, a fan shell of ventilation equipment, a wind collector, a wind barrel and the like. A double-roller clamping spinning forming process is very suitable for forming complex-profile thin-wall revolving body parts, belongs to the field of common spinning, and therefore has the advantages of small forming force of common spinning, low equipment cost, high part mechanical strength and good surface quality. The pair of cylindrical rotary rollers is adopted to symmetrically clamp the plate, the plate is spun under the action of compressive stress, the plate is thick enough to bear large pressure and is not easy to wrinkle, and the dimensional precision of a double-roller clamping spinning forming piece is further improved compared with the common spinning. When the plate is formed, the plate is in line contact with the rotary roller, the load action area is large, the deformation degree of each pass is large, and the spinning production efficiency is high. The shape of the workpiece clamped by the double rollers and formed by spinning is irrelevant to the outline of the core die, is determined by the motion track of the spinning rollers, and belongs to the non-die flexible spinning forming. The defects of complex working procedures, low part precision, poor surface quality and low material utilization rate existing in the traditional processing modes of stamping, splitting, welding, polishing and the like can be overcome.
However, the forming method usually adopts a roll welding mode in the process of preparing the drum blank, longitudinal welding seams are left after roll welding processing, appearance quality is affected, and cracks may be generated at the welding seams in the later spinning process, so that qualified parts cannot be formed. The Chinese invention patent (application number: CN201811027297.5) discloses a composite forming method of flow spinning and double-roller clamping spinning processing, which solves the problem of welding seams in the blank rolling and welding process when a thin-wall revolving body part is processed by double-roller clamping spinning, but a core die is needed in the flow spinning processing process, and different core dies need to be replaced when blanks with different sizes are processed, so that the process is complicated, and the core die cost is higher. Therefore, a novel manufacturing process of a thin-wall revolving body part with a complex profile is urgently needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a composite forming method of the pair-roller spinning and the double-roller clamping spinning of the thin-wall rotary part, which has the advantages that a core mold does not need to be replaced during the pair-roller spinning, and the equipment cost is low; the method has the advantages of small forming load, high size precision, high surface quality, high material utilization rate and high processing efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a composite forming method of thin-wall revolving body parts through paired wheel spinning and double-roller clamping spinning comprises the steps of firstly performing paired wheel spinning on thick-wall seamless pipe blanks to obtain seamless thin-wall cylindrical part blanks, and then forming complex molded surface parts through double-roller clamping spinning; the method specifically comprises the following steps:
firstly, clamping a thick-wall seamless pipe blank 3 on a first internal expanding type clamp 2 of a spinning machine, and clamping the thick-wall seamless pipe blank 3 by using internal and external spinning wheels of a spinning wheel set 4;
secondly, starting a main shaft 1 of the spinning machine, driving a thick-wall seamless pipe blank 3 to rotate by the main shaft 1 through a first internal expanding type clamp 2, enabling an internal rotating wheel and an external rotating wheel of a rotating wheel group 4 to move from bottom to top from the end part of the thick-wall seamless pipe blank 3, enabling materials of the thick-wall seamless pipe blank 3 to flow in the opposite direction, and carrying out reverse rotation forming; the spinning wheel performs multi-pass spinning on the thick-wall seamless pipe blank 3 to form a seamless thin-wall cylindrical blank 6;
thirdly, withdrawing the rotating wheel set 4 and taking out the seamless thin-wall cylindrical part blank 6;
fourthly, clamping and fixing the seamless thin-wall cylindrical part blank 6 on the main shaft 1 through a second internal expansion type clamp 5;
fifthly, clamping a seamless thin-wall cylindrical part blank 6 by a rotary roller group 7 for double-roller clamping and spinning to form by double-roller clamping and spinning, and controlling the motion track of the rotary roller to form a required complex profile;
and sixthly, withdrawing the rotary roller group 7 for double-roller clamping and spinning, and removing the clamping force of the second internal expansion type clamp 5 to obtain the finally formed thin-wall rotary part with the complex molded surface.
In the process of carrying out paired wheel spinning processing on the thick-wall seamless tube blank 3 by the spinning wheel set 4, the seamless thin-wall cylindrical blank 6 with the required diameter and wall thickness can be obtained by controlling the radial movement and the clamping force of the spinning wheel set 4.
The second internal expanding type clamp 5 drives the seamless thin-wall cylindrical part blank 6 to rotate in the double-roller clamping and spinning process, and the diameter and the rotating speed are adjustable.
The rotary roller group 7 for double-roller clamping spinning can rotate actively and provide friction force in the forming process; meanwhile, a thin-wall rotary part with a complex profile characteristic can be formed by controlling the motion track of the rotary roller group 7 for double-roller clamping spinning.
The spinning of the pair of wheels adopts four pairs of spinning wheels to be uniformly distributed along the circumferential direction of the workpiece, and simultaneously, the inner surface and the outer surface of the workpiece are processed.
The invention has the following beneficial effects:
the invention provides a new forming process method for the thin-wall revolving body part with the complex molded surface; the problems that blanks which are formed into thin-wall revolving body parts with complex profiles and need to be manufactured in a roll welding mode are prone to cracking at welding seams in the later processing process, a large number of core molds are needed for blank manufacturing by flow spinning and the like are solved in principle.
The invention is simple and easy to operate, adopt the composite forming way of pair wheel spinning blank making and two-roller clamping spinning to process the thin-walled revolving body part with complicated profile, the work piece is out of shape symmetrically while pair wheel spinning, the stress state is improved, the dimensional accuracy is improved, and can dispel the longitudinal weld, the part of different specifications does not need to change the mandrel, the apparatus cost is low; the forming method has the advantages of small forming load, high size precision, high surface quality, high material utilization rate and high processing efficiency, and has good application value in the fields of aviation, aerospace, war industry and civil use.
Drawings
FIG. 1 is a schematic view of the wheel spin forming of the present invention.
FIG. 2 is a bottom view of the wheel spin forming of the present invention.
Figure 3 is a schematic view of the present invention of twin roll nip spin forming.
Detailed Description
The present invention will be described in detail below with reference to examples and the accompanying drawings.
Referring to fig. 1, 2 and 3, a composite forming method of paired wheel spinning and double-roller clamping spinning of a thin-wall revolving body part is provided, wherein the paired wheel spinning adopts an inner spinning wheel, four pairs of spinning wheels are uniformly distributed along the circumferential direction of a workpiece, and the inner surface and the outer surface of the workpiece are simultaneously processed; carrying out paired wheel spinning on a thick-wall seamless pipe blank to obtain a seamless thin-wall cylindrical part blank, and then clamping and spinning by adopting double rollers to form a complex profile part; the method specifically comprises the following steps:
firstly, clamping a thick-wall seamless pipe blank 3 on a first internal expanding type clamp 2 of a spinning machine, and clamping the thick-wall seamless pipe blank 3 by using internal and external spinning wheels in a spinning wheel set 4;
secondly, starting a main shaft 1 of the spinning machine, driving a thick-wall seamless pipe blank 3 to rotate through a first internal expanding type clamp 2, enabling an internal rotating wheel and an external rotating wheel of a rotating wheel group 4 to move from bottom to top from the end part of the thick-wall seamless pipe blank 3, enabling the material of the thick-wall seamless pipe blank 3 to flow in the opposite direction, and carrying out reverse rotation forming; the spinning wheel performs multi-pass spinning on the thick-wall seamless pipe blank 3 to form a seamless thin-wall cylindrical blank 6;
the spinning wheel group 4 can obtain the seamless thin-wall cylindrical part blank 6 with required diameter and wall thickness by controlling the radial movement and the clamping force of the spinning wheel group 4 in the process of spinning the thick-wall seamless pipe blank 3;
thirdly, withdrawing the rotating wheel set 4 and taking out the seamless thin-wall cylindrical part blank 6;
fourthly, clamping and fixing the seamless thin-wall cylindrical part blank 6 on the main shaft 1 through a second internal expansion type clamp 5;
fifthly, clamping a seamless thin-wall cylindrical part blank 6 by a rotary roller group 7 for double-roller clamping and spinning to form by double-roller clamping and spinning, and controlling the motion track of the rotary roller to form a required complex profile;
the second internal expanding type clamp 5 drives the seamless thin-wall cylindrical part blank 6 to rotate in the double-roller clamping and spinning process, and the diameter and the rotating speed are adjustable;
sixthly, withdrawing the rotary roller group 7 for double-roller clamping and spinning, and removing the clamping force of the second inner expansion type clamp 5 to obtain the finally formed thin-wall rotary part with the complex molded surface;
the rotary roller group 7 for double-roller clamping spinning can rotate actively, provides friction force in the forming process and improves the forming quality; meanwhile, a thin-wall rotary part with a complex profile characteristic can be formed by controlling the motion track of the rotary roller group 7 for double-roller clamping spinning.
Claims (5)
1. A composite forming method of paired wheel spinning and double-roller clamping spinning of a thin-wall revolving body part is characterized by comprising the following steps: carrying out paired wheel spinning on a thick-wall seamless pipe blank to obtain a seamless thin-wall cylindrical part blank, and then clamping and spinning by adopting double rollers to form a complex profile part; the method specifically comprises the following steps:
firstly, clamping a thick-wall seamless pipe blank (3) on a first internal expansion type clamp (2) of a spinning machine, and clamping the thick-wall seamless pipe blank (3) by using internal and external spinning wheels of a spinning wheel set (4);
secondly, starting a main shaft (1) of the spinning machine, driving a thick-wall seamless pipe blank (3) to rotate by the main shaft (1) through a first internal expansion type clamp (2), starting an internal rotating wheel and an external rotating wheel of a rotating wheel group (4) from the end part of the thick-wall seamless pipe blank (3) to move from bottom to top, and enabling the material of the thick-wall seamless pipe blank (3) to flow in the opposite direction to carry out reverse rotation forming; the spinning wheel performs multi-pass spinning on the thick-wall seamless pipe blank (3) to form a seamless thin-wall cylindrical part blank (6);
thirdly, withdrawing the rotating wheel set (4) and taking out the seamless thin-wall cylindrical part blank (6);
fourthly, clamping and fixing the seamless thin-wall cylindrical part blank (6) on the main shaft (1) through a second internal expansion type clamp (5);
fifthly, clamping a seamless thin-wall cylindrical part blank (6) by a rotary roller group (7) for double-roller clamping and spinning to form by double-roller clamping and spinning, and controlling the motion track of the rotary roller to form a required complex profile;
and sixthly, withdrawing the double-roller clamping spinning roller set (7), and removing the clamping force of the second internal expansion type clamp (5) to obtain the finally formed thin-wall rotary part with the complex molded surface.
2. The composite forming method of the wheel spinning and the double-roller clamping spinning of the thin-wall revolved body part according to claim 1, characterized in that: the spinning wheel set (4) can obtain the seamless thin-wall cylindrical part blank (6) with required diameter and wall thickness by controlling the radial movement and the clamping force of the spinning wheel set (4) in the process of carrying out wheel spinning processing on the thick-wall seamless pipe blank (3).
3. The composite forming method of the wheel spinning and the double-roller clamping spinning of the thin-wall revolved body part according to claim 1, characterized in that: the second internal expanding type clamp (5) drives the seamless thin-wall cylindrical part blank (6) to rotate in the double-roller clamping and spinning process, and the diameter and the rotating speed are adjustable.
4. The composite forming method of the wheel spinning and the double-roller clamping spinning of the thin-wall revolved body part according to claim 1, characterized in that: the double-roller clamping spinning roller set (7) can rotate actively and provide friction force in the forming process; meanwhile, a thin-wall rotary part with complex profile characteristics can be formed by controlling the motion track of the rotary roller group (7) for double-roller clamping spinning.
5. The composite forming method of the wheel spinning and the double-roller clamping spinning of the thin-wall revolved body part according to claim 1, characterized in that: the spinning of the pair of wheels adopts four pairs of spinning wheels to be uniformly distributed along the circumferential direction of the workpiece, and simultaneously, the inner surface and the outer surface of the workpiece are processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110756976.1A CN113399529A (en) | 2021-07-05 | 2021-07-05 | Composite forming method for paired wheel spinning and double-roller clamping spinning of thin-wall rotary part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110756976.1A CN113399529A (en) | 2021-07-05 | 2021-07-05 | Composite forming method for paired wheel spinning and double-roller clamping spinning of thin-wall rotary part |
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| CN113399529A true CN113399529A (en) | 2021-09-17 |
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| CN202110756976.1A Pending CN113399529A (en) | 2021-07-05 | 2021-07-05 | Composite forming method for paired wheel spinning and double-roller clamping spinning of thin-wall rotary part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019978A (en) * | 2023-08-25 | 2023-11-10 | 中国石油大学(华东) | Opposite-roller spinning device with guiding and correcting functions |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109590A (en) * | 1985-12-29 | 1987-09-09 | 东北重型机械学院 | The vessel head tyre-less rotary pressure machine that oil motor drives |
| JPH04105720A (en) * | 1990-08-22 | 1992-04-07 | Mitsuma Giken Kk | Manufacture of crown roller |
| JP2005007421A (en) * | 2003-06-18 | 2005-01-13 | Kayaba Ind Co Ltd | Spinning method for soft material |
| CN103316986A (en) * | 2013-06-06 | 2013-09-25 | 西安交通大学 | Two-wheel flexible spinning technology applicable to steel plate welding wheels with grooves |
| CN103691790A (en) * | 2013-12-20 | 2014-04-02 | 华南理工大学 | Opposite roller spin forming device |
| CN103736807A (en) * | 2014-01-03 | 2014-04-23 | 西安航天动力机械厂 | Paired-wheel spinning machining method for roll-welded cylindrical part |
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN208944930U (en) * | 2018-10-16 | 2019-06-07 | 山西众立法兰有限公司 | Interior foreign steamer is to rotation machine |
-
2021
- 2021-07-05 CN CN202110756976.1A patent/CN113399529A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109590A (en) * | 1985-12-29 | 1987-09-09 | 东北重型机械学院 | The vessel head tyre-less rotary pressure machine that oil motor drives |
| JPH04105720A (en) * | 1990-08-22 | 1992-04-07 | Mitsuma Giken Kk | Manufacture of crown roller |
| JP2005007421A (en) * | 2003-06-18 | 2005-01-13 | Kayaba Ind Co Ltd | Spinning method for soft material |
| CN103316986A (en) * | 2013-06-06 | 2013-09-25 | 西安交通大学 | Two-wheel flexible spinning technology applicable to steel plate welding wheels with grooves |
| CN103691790A (en) * | 2013-12-20 | 2014-04-02 | 华南理工大学 | Opposite roller spin forming device |
| CN103736807A (en) * | 2014-01-03 | 2014-04-23 | 西安航天动力机械厂 | Paired-wheel spinning machining method for roll-welded cylindrical part |
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN208944930U (en) * | 2018-10-16 | 2019-06-07 | 山西众立法兰有限公司 | Interior foreign steamer is to rotation machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019978A (en) * | 2023-08-25 | 2023-11-10 | 中国石油大学(华东) | Opposite-roller spinning device with guiding and correcting functions |
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Application publication date: 20210917 |
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