CN105782303A - Temperature difference adjustment method capable of adjusting initial tension of spring - Google Patents
Temperature difference adjustment method capable of adjusting initial tension of spring Download PDFInfo
- Publication number
- CN105782303A CN105782303A CN201610302149.4A CN201610302149A CN105782303A CN 105782303 A CN105782303 A CN 105782303A CN 201610302149 A CN201610302149 A CN 201610302149A CN 105782303 A CN105782303 A CN 105782303A
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- Prior art keywords
- initial tension
- spring
- temperature difference
- adjustment
- temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/06—Wound springs with turns lying in cylindrical surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/08—Functional characteristics, e.g. variability, frequency-dependence pre-stressed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/026—Springs wound- or coil-like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Wire Processing (AREA)
Abstract
The invention discloses a temperature difference adjustment method capable of adjusting initial tension of a spring. The initial tension of a to-be-manufactured initial tension spring is set as P0, and the temperature difference adjustment process for the initial tension spring comprises following steps: 1) the spring winds, and the initial tension is increased to the greatest extent; 2) shackles at two ends are prefabricated after winding, and first heat treatment is performed; 3) setting is performed, the initial tension P0 is detected, and P0 is equal to the difference between 2P1 and P2; 4) P0 is compared with a theoretical value; 5) (N+1)th heat treatment is performed, N is larger than or equal to 1, and the first adjustment is represented when N is 1; 6) setting is performed, and the initial tension P0 which is equal to the difference between 2P1 and P2 is detected; 7) P0 is compared with the theoretical value. One brand-new technical method is provided for precise control of the initial tension of the initial tension spring, the scheme is very simple to implement, and the effect is obvious.
Description
Technical field
The invention belongs to spring manufacturing technology field, relate at the beginning of a kind of accurate control initial tension spring
The temperature difference method of adjustment of pulling force.
Background technology
For the most accurately controlling the initial tension of initial tension spring, there is no concrete grammar in the literature.
But, at key positions such as aircraft oars, because space is limited, it is necessary to use initial tension spring,
And for realizing the key operations of mechanism.Initial tension is close circle spiral stretching spring shape when cold coiling
The internal force become, initial tension produces when winding, cannot control initial tension size during winding quantitatively,
Can only increase roughly or slightly smaller in term of reference.Therefore the initial tension of exact numerical is gone for
Spring is the most difficult.
Summary of the invention
The problem existed for prior art, it is an object of the invention to provide at the beginning of a kind of accurately control
The temperature difference method of adjustment of tension spring initial tension.
For achieving the above object, this method is in initial tension spring manufactures, by adjusting temperature,
Thus reach accurately to control the purpose of the initial tension of initial tension spring.
A kind of temperature difference method of adjustment of the initial tension of accurate control initial tension spring, initial tension to be made
The initial tension of spring is P0, and the temperature difference adjusting process of this initial tension spring is as follows:
The first step. spring is wound, and strengthens initial tension as far as possible；
Second step. prefabricated two ends shackle after winding, carry out the 1st heat treatment；Temperature T1 >=surface
The temperature of heating during process；
3rd step. process of halting, detection initial tension P0:
P0=2P1-P2；
Wherein, P1 be spring elongation amount be actual measurement force value during L；P2 be spring elongation amount be 2L
Time actual measurement force value；The selection of L is so that each circle generation gap is as the criterion；
4th step .P0 contrasts with theoretical value:
If 4.1 P0 are less than normal, part rejection；
If 4.2 P0 are qualified, it is possible to use, carry out following process；
If 4.3 P0 are bigger than normal, adjust by five～seven one step process；
5th step. carry out the N+1 time heat treatment (N >=1, N=1 represents the 1st adjustment), temperature
T (N+1) ＞ TN, [number bigger than normal with P0 for T (N+1) is relevant]；
6th step. process of halting, detection initial tension P0:
P0=2P1-P2；
7th step .P0 contrasts with theoretical value:
If 7.1 P0 are qualified, it is possible to use, carry out following process；
If 7.2 P0 are bigger than normal, repeat five～seven one step process and adjust, until P0 is qualified.
Spring material preferably employs carbon steel, it is possible to use rustless steel or copper alloy.Can use auxiliary
Help the core method of forming, improve spring initial tension.
The invention have the advantage that the present invention is that the initial tension accurately controlling initial tension spring provides one
Individual brand-new technical method, scheme is implemented very simple, and effect is obvious.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of initial tension spring.
Detailed description of the invention
Below, with reference to accompanying drawing, the present invention is more fully illustrated, shown in the drawings of this
Bright exemplary embodiment.But, the present invention can be presented as multiple multi-form, should not manage
Solve as being confined to the exemplary embodiment described here.And it is to provide these embodiments, so that
The present invention fully and completely, and will fully convey the scope of the invention to the ordinary skill of this area
Personnel.
As it is shown in figure 1, the initial tension that the invention mainly relates to initial tension spring controls.Initial tension is
The internal force that close circle spiral stretching spring is formed when cold coiling, owing to the spring initial tension after volume is not allow
Manageable, but use temper that the initial tension of stretching spring is eliminated the effects of the act, return
Temperature is low, temperature retention time is short for fire, then the initial tension retained is relatively big, otherwise temperature is high, insulation
Time is long, then the initial tension retained diminishes.Owing to lonneal can reduce spring initial tension, because of
This provides a kind of temperature difference method of adjustment adjusting spring initial tension according to this characteristic of spring.
Owing to initial tension can only diminish, it is impossible to increase, initial tension the most as requested selects
The material being suitable for is wound into has the spring bigger than predetermined initial tension, then carries out heat treatment, after cooling
Detection initial tension, if still more than the initial tension value required, carrying out secondary heat treatment, after cooling
Detect initial tension again, until initial tension i.e. completes initial tension spring in being reduced to the exact extension required
Production process.
The present invention accurately controls the temperature difference method of adjustment of the initial tension of initial tension spring, is intended to make and just draws
The initial tension of power spring is P0, and the temperature difference adjusting process of this initial tension spring is as follows:
The first step. spring is wound, and strengthens initial tension as far as possible；
Second step. prefabricated two ends shackle after winding, carry out the 1st heat treatment；
3rd step. process of halting, detection initial tension P0:
P0=2P1-P2；
Wherein, P1 be spring elongation amount be actual measurement force value during L；P2 be spring elongation amount be 2L
Time actual measurement force value；The selection of L is so that each circle generation gap is as the criterion；
4th step .P0 contrasts with theoretical value:
If 4.1 P0 are less than normal, part rejection；
If 4.2 P0 are qualified, it is possible to use, carry out following process；
If 4.3 P0 are bigger than normal, adjust by five～seven one step process；
5th step. carrying out the N+1 time heat treatment, N >=1, N=1 represents the 1st adjustment；
6th step. process of halting, detection initial tension P0:
P0=2P1-P2；
7th step .P0 contrasts with theoretical value:
If 7.1 P0 are qualified, it is possible to use, carry out following process；
If 7.2 P0 are bigger than normal, repeat five～seven one step process and adjust, until P0 is qualified.
The temperature of heating when wherein temperature T1 of the 1st heat treatment >=surface processes；
Temperature T (N+1) ＞ TN, wherein, P0 is the biggest with the difference of theoretical value, then improve temperature T (N+1)
Difference with T (N)；P0 is the least with the difference of theoretical value, then reduce temperature T (N+1) and T's (N)
Difference.
Embodiment one:
It is intended to make the spring of an initial tension P0=20N ± 1N.
The first step. spring is wound, and strengthens initial tension as far as possible；
Second step. prefabricated two ends shackle after winding, carry out the 1st heat treatment:
Temperature 200 DEG C, is incubated 30min, air cooling；
3rd step. process of halting, detection initial tension P0:
P0=2*47N-76N=18N；
4th step .P0=18N is less than 20N ± 1N requirement, part rejection.
Embodiment two:
It is intended to make the spring of an initial tension P0=20N ± 1N.
The first step. spring is wound, and strengthens initial tension as far as possible；
Second step. prefabricated two ends shackle after winding, carry out the 1st heat treatment:
Temperature 200 DEG C, is incubated 30min, air cooling；
3rd step. process of halting, detection initial tension P0:
P0=2*50N-79N=21N；
4th step .P0=21N meets 20N ± 1N requirement, it is possible to use, carry out following process.
Embodiment three:
It is intended to make the spring of an initial tension P0=20N ± 1N.
The first step. spring is wound, and strengthens initial tension as far as possible；
Second step. prefabricated two ends shackle after winding, carry out the 1st heat treatment:
Temperature 200 DEG C, is incubated 30min, air cooling；
3rd step. process of halting, detection initial tension P0:
P0=2*52N-81N=23N；
4th step .P0=23N is more than 20N ± 1N requirement, adjusts by the 5th～the 7th one step process；
5th step. carry out the 2nd heat treatment:
Temperature 220 DEG C, is incubated 30min, air cooling；
6th step. process of halting, detection initial tension P0:
P0=2*49N-78N=20N；
7th step .P0=20N meets 20N ± 1N requirement, it is possible to use, carry out following process.
Additionally, in order to obtain the spring with bigger initial tension, the selection of material and winding side
Formula is all important, and experiment finds, the spring of the same size of the same manner winding, different materials
Material has different initial tensions, and initial tension is respectively as follows: carbon steel spring from large to small > stainless steel spring >
Copper alloy spring.The initial tension of carbon steel spring than stainless steel spring big about 15%, compares copper alloy
Spring big about 50%.Therefore go for the spring of bigger initial tension, carbon element steel are preferably used
Material.
In order to improve initial tension, winding method is also critically important, at present, draws in production in enormous quantities
Use numerical-control spring coiling machine when stretching spring, when requiring extension spring to have bigger initial tension, can adopt
Use the auxiliary wick method of forming, improve spring initial tension.The present invention is accurately to control at the beginning of initial tension spring
Pulling force provides a brand-new technical method, and scheme is implemented very simple, and effect is obvious.
Claims (6)
1. a temperature difference method of adjustment for the initial tension of accurate control initial tension spring, the initial tension of initial tension spring to be made is P0, and the temperature difference adjusting process of this initial tension spring is as follows:
1) spring is wound, and strengthens initial tension as far as possible；
2) prefabricated two ends shackle after being wound around, carries out the 1st heat treatment；
3) halt process, detect initial tension P0:P0=2P1-P2；
4) P0 contrasts with theoretical value:
If 4.1 P0 are less than normal, part rejection；
If 4.2 P0 are qualified, it is possible to use, carry out following process；
If 4.3 P0 are bigger than normal, adjust by five～seven one step process:
5) carrying out the N+1 time heat treatment, N >=1, N=1 represents the 1st adjustment；
6) halt process, detect initial tension P0:P0=2P1-P2；
7) P0 contrasts with theoretical value:
If 7.1 P0 are qualified, it is possible to use, carry out following process；
If 7.2 P0 are bigger than normal, repeat five～seven one step process and adjust, until P0 is qualified；
Wherein, P1 be spring elongation amount be actual measurement force value during L；P2 be spring elongation amount be actual measurement force value during 2L；The selection of L is so that each circle generation gap is as the criterion.
The temperature difference method of adjustment of the initial tension of accurate control initial tension spring the most according to claim 1, it is characterised in that the temperature of heating when temperature T1 of the 1st heat treatment >=surface processes.
The temperature difference method of adjustment of the initial tension of accurate control initial tension spring the most according to claim 1 and 2, it is characterized in that, temperature T (N+1) ＞ TN, wherein, P0 is the biggest with the difference of theoretical value, then improve the difference of temperature T (N+1) and T (N).
The temperature difference method of adjustment of the initial tension of accurate control initial tension spring the most according to claim 3, it is characterised in that spring material preferably employs carbon steel.
The temperature difference method of adjustment of the initial tension of accurate control initial tension spring the most according to claim 3, it is characterised in that spring material uses rustless steel or copper alloy.
The temperature difference method of adjustment of the initial tension of accurate control initial tension spring the most according to claim 3, it is characterised in that use the auxiliary wick method of forming, improves spring initial tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302149.4A CN105782303A (en) | 2016-05-06 | 2016-05-06 | Temperature difference adjustment method capable of adjusting initial tension of spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302149.4A CN105782303A (en) | 2016-05-06 | 2016-05-06 | Temperature difference adjustment method capable of adjusting initial tension of spring |
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| Publication Number | Publication Date |
|---|---|
| CN105782303A true CN105782303A (en) | 2016-07-20 |
Family
ID=56400931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302149.4A Pending CN105782303A (en) | 2016-05-06 | 2016-05-06 | Temperature difference adjustment method capable of adjusting initial tension of spring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287564A (en) * | 2016-09-30 | 2017-01-04 | 浙江鼎鑫工艺品有限公司 | A kind of lantern |
| CN110315007A (en) * | 2019-07-01 | 2019-10-11 | 昌河飞机工业（集团）有限责任公司 | Spiral initial tension spring processing method |
Citations (6)
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|---|---|---|---|---|
| WO2008023898A1 (en) * | 2006-08-24 | 2008-02-28 | Korea Institute Of Science And Technology | Method to provide initial tension for coil spring and its application |
| CN101342565A (en) * | 2008-08-20 | 2009-01-14 | 哈尔滨汽轮机厂有限责任公司 | Method for qualifying work load or deformation of close coiled circular column draft helical spring |
| JP2011087087A (en) * | 2009-10-14 | 2011-04-28 | Olympus Corp | Apparatus, program and method for processing image signal |
| CN202387890U (en) * | 2012-01-09 | 2012-08-22 | 杭州弹簧有限公司 | Device for increasing initial tension of coil spring |
| CN203972700U (en) * | 2014-03-05 | 2014-12-03 | 扬州弹簧有限公司 | A kind of improve spring initial tension around spring arrangement |
| CN105317896A (en) * | 2015-12-10 | 2016-02-10 | 中国科学院测量与地球物理研究所 | High-precision metal zero-length spring for gravimeter and manufacturing technology thereof |
-
2016
- 2016-05-06 CN CN201610302149.4A patent/CN105782303A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008023898A1 (en) * | 2006-08-24 | 2008-02-28 | Korea Institute Of Science And Technology | Method to provide initial tension for coil spring and its application |
| CN101342565A (en) * | 2008-08-20 | 2009-01-14 | 哈尔滨汽轮机厂有限责任公司 | Method for qualifying work load or deformation of close coiled circular column draft helical spring |
| JP2011087087A (en) * | 2009-10-14 | 2011-04-28 | Olympus Corp | Apparatus, program and method for processing image signal |
| CN202387890U (en) * | 2012-01-09 | 2012-08-22 | 杭州弹簧有限公司 | Device for increasing initial tension of coil spring |
| CN203972700U (en) * | 2014-03-05 | 2014-12-03 | 扬州弹簧有限公司 | A kind of improve spring initial tension around spring arrangement |
| CN105317896A (en) * | 2015-12-10 | 2016-02-10 | 中国科学院测量与地球物理研究所 | High-precision metal zero-length spring for gravimeter and manufacturing technology thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287564A (en) * | 2016-09-30 | 2017-01-04 | 浙江鼎鑫工艺品有限公司 | A kind of lantern |
| CN110315007A (en) * | 2019-07-01 | 2019-10-11 | 昌河飞机工业（集团）有限责任公司 | Spiral initial tension spring processing method |
| CN110315007B (en) * | 2019-07-01 | 2021-07-02 | 昌河飞机工业（集团）有限责任公司 | Spiral initial tension spring processing method |
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Application publication date: 20160720 |