CN104707885A - Method for manufacturing equal curvature radius reel type spring - Google Patents
Method for manufacturing equal curvature radius reel type spring Download PDFInfo
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- CN104707885A CN104707885A CN201310692888.5A CN201310692888A CN104707885A CN 104707885 A CN104707885 A CN 104707885A CN 201310692888 A CN201310692888 A CN 201310692888A CN 104707885 A CN104707885 A CN 104707885A
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- curvature radius
- rolling
- type spring
- spring
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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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a method for manufacturing an equal curvature radius reel type spring. According to the method, a metal strip serves as a raw material, pass rolling deformation is applied to the strip through an asymmetrical rolling mode, the reel type spring is obtained through one or more times of rolling, and all rings of the reel type spring have the same forming diameter. All the rings of the reel type spring manufactured through the method have the same forming diameter, when the helical angle is zero degree, the manufactured spring is a constant-force spring of a form, when the helical angle is larger than zero degree, the reel type spring can automatically stretch and pop up after being compressed, all the rings are tightly attached after the reel type spring stretches and pops up, the reel type spring has good rigidity after being spread, and small deflection is generated; as for the same metal strip, a reel type spring having different forming diameters can be obtained by adjusting the difference between line speeds of roll surfaces of two working rolls, pass rolling deformation and rolling pass quantity of asymmetrical rolling; the equal curvature radius reel type spring having different helical angles can be obtained by changing the feed angle between the strip and the rolling line of a rolling mill.
Description
Technical field
The present invention relates to a kind of method preparing iso-curvature radius spool formula spring, belong to the preparing technical field of spring.
Background technology
Along with the development of science and technology, the mankind are more and more deep for the exploration of zone of ignorance, and spring element is owing to having unique expansion service, for Exploratory behavior provides huge help.Iso-curvature radius spool formula spring can be stored in less space, and without any need for extraneous thrust in its stretching process.Meanwhile, have identical form diameter because iso-curvature radius spool formula spring often encloses, when helical angle is greater than 0 °, stretch after ejecting and fit closely between adjacent each circle, have good axial rigidity, the amount of deflection that horizontal positioned produces is less.
Summary of the invention
The object of this invention is to provide a kind of often circle of preparing and there is the method for identical form diameter roll type spring, the present invention take sheet metal strip as raw material, preparation has certain length (being greater than 3M) helical coil cartridge type spring, and its technique is simply effective, and the product scope of application is wide.
A kind of method preparing iso-curvature radius spool formula spring, comprise the steps: to take sheet metal strip as raw material, adopt asymmetrical rolling (differential rolling, namely two working roll roll surface speeds are not etc.) method passes deflection is applied to band, rolling more than once, is often enclosed the roll type spring with identical form diameter.
The thickness of described sheet metal strip is 0.05 ~ 2mm, can be cold-strip.
, rolling pass deflection poor by adjustment asymmetrical rolling two working roll roll surface speeds and rolling pass quantity, control the form diameter of roll type spring, to obtain the roll type spring with differing formed diameter.Ratio V1/V2=1.5 ~ 10 of described asymmetrical rolling two working roll roll surface speeds, described passes deformation amount controlling is 2% ~ 10%, and described rolling pass quantity is 1 ~ 5 passage.
By changing the feeding angle of sheet metal strip and mill milling direction, control the helix angle of iso-curvature radius spool formula spring, to obtain the iso-curvature radius spool formula spring with different helical angle.The feeding angle in described sheet metal strip and mill milling direction is 0 ~ 70 °, and namely sheet metal strip feeds milling train to become the angle of 0 ~ 70 ° with rolling direction.
The iso-curvature radius spool formula spring prepared also can carry out Ageing Treatment further.Can the spring prepared of the sheet metal strip of ageing strengthening for adopting, carry out Ageing Treatment, the elastic force of spring can be improved and reuse number of times.
Often circle obtained by this method has the roll type spring of identical form diameter, and its form diameter is 10 ~ 200mm, and deviation range is ± 1mm, and helical angle is 0 ~ 70 °, and deviation range is ± 5 °.
It is identical that prepared spring respectively encloses form diameter, when helical angle is 0 °, can prepare a kind of constant force spring of form, when helical angle is greater than 0 °, stretch after ejecting and fit closely between adjacent each circle, have good rigidity, the amount of deflection that horizontal positioned produces is less than 5cm/m.
The present invention mainly contains following advantage:
(1) adopting the mode of asymmetrical rolling, by controlling that two working roll roll surface speeds are poor, rolling pass deflection and rolling pass quantity, the roll type spring with differing formed diameter can be obtained.Wherein, ratio V1/V2=1.5 ~ 10 of each working roll roll surface speed, deflection is 2% ~ 10%, and rolling pass is 1 ~ 5.
(2) by adjusting the angle of band and rolling direction, can obtain the iso-curvature radius spool formula spring with different helical angle, wherein feeding angle is 0 ~ 70 °.
(3) it is identical that spring prepared by respectively encloses form diameter, when helical angle is 0 °, can prepare a kind of constant force spring of form, when helical angle is greater than 0 °, stretch after ejecting and fit closely between adjacent each circle, have good rigidity, the amount of deflection that horizontal positioned produces is less than 5cm/m.
(4) can the spring prepared of the sheet metal strip of ageing strengthening for adopting, after Wetted constructures, the elastic force of spring can be improved and reuse number of times.
(5) being prepared into iso-curvature radius spool formula spring form diameter is 10 ~ 200mm, and deviation range is ± 1mm, and helical angle is 0 ~ 70 °, and deviation range is ± 5 °.
For same sheet metal strip, rolling pass deflection poor by adjustment asymmetrical rolling two working roll roll surface speeds and rolling pass quantity, can obtain the roll type spring with differing formed diameter; Feed angle by change band and rolling mill roll line, the iso-curvature radius spool formula spring with different helical angle can be obtained.
Accompanying drawing explanation
Fig. 1 is iso-curvature radius spool formula spring schematic diagram, is illustrated as the situation that helical angle is greater than 0 °.
Fig. 2 is asymmetrical rolling process schematic of the present invention.
Fig. 3 is helical angle asymmetrical rolling process top view when being greater than 0 °.
Detailed description of the invention
As shown in Figure 2, be asymmetrical rolling process schematic of the present invention, V1/V2=1.5 ~ 10.Wherein 1 is topping roll, and 2 is bands to be rolled, and 3 is bottom rolls, and 4 is iso-curvature radius spool formula springs.Fig. 3 is helical angle asymmetrical rolling process top view when being greater than 0 °, and wherein 1 is topping roll, and 2 is bands to be rolled, and 4 is iso-curvature radius spool formula springs.
The present invention with 0.05 ~ 2mm sheet metal strip for raw material, adopt asymmetrical rolling (differential rolling, namely two working roll roll surface speeds are not etc.) method 2% ~ 10% passes deflection is applied to band, ratio V1/V2=1.5 ~ 10 of two working roll roll surface speeds, and band becomes 0 ~ 70 ° of angle to feed milling train with rolling direction, through 1 ~ 5 passes, often circle can be prepared there is the roll type spring of identical form diameter, its form diameter is 10 ~ 200mm, deviation range is ± 1mm, helical angle is 0 ~ 70 °, and deviation range is ± 5 °; Can the spring prepared of the sheet metal strip of ageing strengthening for adopting, after Wetted constructures, the elastic force of spring can be improved and reuse number of times.
As shown in Figure 1, be iso-curvature radius spool formula spring schematic diagram, the wherein helical angle situation that is greater than 0 °.When helical angle is 0 °, it is flat volume constant force spring.
Embodiment 1: experiment parameter is: thickness of strip is 2mm; V1=8r/min, V2=4r/min; Deflection is 5%; Rolling pass is 2; Feeding angle is 70 °.Prepare and often enclose the iso-curvature radius rolling spring that form diameter is 122 ± 1mm, helical angle is 70 ± 5 °, amount of deflection 4cm/m.
Embodiment 2: experiment parameter is: thickness of strip is 1mm; V1=6r/min, V2=4r/min; Deflection is 8%; Rolling pass is 1; Feeding angle is 45 °.Prepare and often enclose the iso-curvature radius rolling spring that form diameter is 200 ± 1mm, helical angle is 45 ± 5 °, amount of deflection 4cm/m.
Embodiment 3: experiment parameter is: thickness of strip is 0.05mm; V1=10r/min, V2=4r/min; Deflection is 2%; Rolling pass is 5; Feeding angle is 30 °.Prepare and often enclose the iso-curvature radius rolling spring that form diameter is 65 ± 1mm, helical angle is 30 ± 5 °, amount of deflection 3cm/m.This alloy strip steel rolled stock is ageing strengthening type metal, carries out Ageing Treatment to it, and aging temp is 480 DEG C, is incubated air cooling after 1 hour.After intensive treatment, the elastic performance of this spring improves.Cold working state tensile strength is 2100MPa, is 2450MPa after Ageing Treatment.
Embodiment 4: experiment parameter is: thickness of strip is 0.1mm; V1=15r/min, V2=1.5r/min; Deflection is 10%; Rolling pass is 3; Feeding angle is 45 °.Prepare and often enclose the iso-curvature radius rolling spring that form diameter is 10 ± 1mm, helical angle is 45 ± 5 °, amount of deflection 3cm/m.
Embodiment 5: experiment parameter is: thickness of strip is 0.1mm; V1=6r/min, V2=4r/min; Deflection is 2%; Rolling pass is 2; Feeding angle is 0 °.Prepare and often enclose the iso-curvature radius rolling spring that form diameter is 80 ± 1mm, helical angle is 0 ± 5 °.
Adopt the present invention to be prepared into roll type spring often to enclose there is identical form diameter, when helical angle is 0 °, the spring adopting the present invention to prepare is a kind of constant force spring of form, when helical angle is greater than 0 °, it independently can stretch ejection after being compressed, stretch after ejecting and fit between adjacent each circle closely, have good rigidity after therefore launching, the amount of deflection of generation is little.
Claims (10)
1. prepare the method for iso-curvature radius spool formula spring for one kind, comprise the steps: to take sheet metal strip as raw material, adopt the method for asymmetrical rolling to apply passes deflection to band, the rolling more than once, is often enclosed the roll type spring with identical form diameter.
2. the method preparing iso-curvature radius spool formula spring according to claim 1, is characterized in that: the thickness of described sheet metal strip is 0.05 ~ 2mm.
3. the method preparing iso-curvature radius spool formula spring according to claim 2, is characterized in that: described sheet metal strip is cold-strip.
4. the method preparing iso-curvature radius spool formula spring according to claim 1, is characterized in that:, rolling pass deflection poor by adjustment asymmetrical rolling two working roll roll surface speeds and rolling pass quantity, the form diameter of control roll type spring.
5. the method preparing iso-curvature radius spool formula spring according to claim 4, it is characterized in that: the ratio of described asymmetrical rolling two working roll roll surface speeds is 1.5 ~ 10, described passes deflection is 2% ~ 10%, and described rolling pass quantity is 1 ~ 5.
6. the method preparing iso-curvature radius spool formula spring according to claim 1, is characterized in that: by changing the feeding angle of sheet metal strip and mill milling direction, controls the helix angle of iso-curvature radius spool formula spring.
7. the method preparing iso-curvature radius spool formula spring according to claim 6, is characterized in that: the feeding angle in described sheet metal strip and mill milling direction is 0 ~ 70 °.
8. the method preparing iso-curvature radius spool formula spring according to claim 1, is characterized in that: the iso-curvature radius spool formula spring prepared is carried out Ageing Treatment.
9. the method preparing iso-curvature radius spool formula spring according to claim 1, it is characterized in that: the often circle obtained has the roll type spring of identical form diameter, and its form diameter is 10 ~ 200mm, and deviation range is ± 1mm, helical angle is 0 ~ 70 °, and deviation range is ± 5 °.
10. the method preparing iso-curvature radius spool formula spring according to claim 1, it is characterized in that: the roll type spring with identical form diameter obtained, when helical angle is 0 °, is a kind of constant force spring, when helical angle is greater than 0 °, amount of deflection is less than 5cm/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692888.5A CN104707885B (en) | 2013-12-17 | 2013-12-17 | Method for manufacturing equal curvature radius reel type spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692888.5A CN104707885B (en) | 2013-12-17 | 2013-12-17 | Method for manufacturing equal curvature radius reel type spring |
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| CN104707885A true CN104707885A (en) | 2015-06-17 |
| CN104707885B CN104707885B (en) | 2017-01-25 |
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| CN201310692888.5A Active CN104707885B (en) | 2013-12-17 | 2013-12-17 | Method for manufacturing equal curvature radius reel type spring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976586A (en) * | 2019-12-31 | 2020-04-10 | 宁波市鄞州风名工业产品设计有限公司 | Bilateral hot rolling spring forming mechanism |
| CN112591147A (en) * | 2021-01-08 | 2021-04-02 | 欣诺冷弯型钢产业研究院（曹妃甸）有限公司 | Light and small linear unfolding mechanism and use method |
Citations (6)
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| SU1697926A1 (en) * | 1989-05-10 | 1991-12-15 | Научно-Производственный Коллектив "Исток" Научно-Производственного Объединения "Квант" | Sheet bending machine |
| CN2215959Y (en) * | 1995-03-17 | 1995-12-27 | 高延武 | Five-roller variable cross-section plate spring mill |
| CN1887459A (en) * | 2006-07-14 | 2007-01-03 | 中北大学 | Variable wall thickness vane making process and its rolling formation apparatus |
| CN200939479Y (en) * | 2006-04-28 | 2007-08-29 | 沈阳理工大学 | Auto spring coiling machine for |
| CN201176450Y (en) * | 2008-03-31 | 2009-01-07 | 长安汽车（集团）有限责任公司 | Step rotating type clamp for processing tight multi-circle spiral spring |
| CN202824297U (en) * | 2012-08-23 | 2013-03-27 | 上海协力卷簧制造有限公司 | Steel belt rolling and forming device |
-
2013
- 2013-12-17 CN CN201310692888.5A patent/CN104707885B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1697926A1 (en) * | 1989-05-10 | 1991-12-15 | Научно-Производственный Коллектив "Исток" Научно-Производственного Объединения "Квант" | Sheet bending machine |
| CN2215959Y (en) * | 1995-03-17 | 1995-12-27 | 高延武 | Five-roller variable cross-section plate spring mill |
| CN200939479Y (en) * | 2006-04-28 | 2007-08-29 | 沈阳理工大学 | Auto spring coiling machine for |
| CN1887459A (en) * | 2006-07-14 | 2007-01-03 | 中北大学 | Variable wall thickness vane making process and its rolling formation apparatus |
| CN201176450Y (en) * | 2008-03-31 | 2009-01-07 | 长安汽车（集团）有限责任公司 | Step rotating type clamp for processing tight multi-circle spiral spring |
| CN202824297U (en) * | 2012-08-23 | 2013-03-27 | 上海协力卷簧制造有限公司 | Steel belt rolling and forming device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976586A (en) * | 2019-12-31 | 2020-04-10 | 宁波市鄞州风名工业产品设计有限公司 | Bilateral hot rolling spring forming mechanism |
| CN112591147A (en) * | 2021-01-08 | 2021-04-02 | 欣诺冷弯型钢产业研究院（曹妃甸）有限公司 | Light and small linear unfolding mechanism and use method |
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| Publication number | Publication date |
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| CN104707885B (en) | 2017-01-25 |
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Effective date of registration: 20190624 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing Patentee before: General Research Institute for Nonferrous Metals |
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