CN103949856B - A kind of method improving extension spring force value - Google Patents
A kind of method improving extension spring force value Download PDFInfo
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- CN103949856B CN103949856B CN201410171479.5A CN201410171479A CN103949856B CN 103949856 B CN103949856 B CN 103949856B CN 201410171479 A CN201410171479 A CN 201410171479A CN 103949856 B CN103949856 B CN 103949856B
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- tempering
- wound around
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- time
- force value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Springs (AREA)
Abstract
The invention belongs to spring manufacturing technology, it relates to a kind of method improving extension spring force value. The present invention adopts two winding technologies, first time is wound around and produces certain stress, when second time is wound around due to the more big principle of the more big reactive force of reactive force, effectively add preliminary tension for second time is wound around thus improves the force value of spring, avoid unnecessary trial-production and examine qualification rate with the once friendship that waste improves elastic part. This invention is not only applicable to the spring of vertiplane key position, in being applicable to the processing of all important parts requiring stress higher and producing.
Description
Technical field
The invention belongs to spring manufacturing technology, it relates to a kind of method improving extension spring force value.
Background technology
The processing of current extension spring is all adopt lathe to be wound around once shaped, winding process completes the winding process of extension spring by the propelling of the Non-follow control biscuit of workman or straight material, general biscuit diameter material relatively big, straight all can not produce preliminary tension when being wound around, extension spring is caused to produce the force value that gap directly affects spring when being wound around, vertiplane, key part are required to the spring of high stress, it is very difficult to arrive the force value performance of service requirements.
In vertiplane is produced, centrifugal limit motion block spring is used for propeller hoop, restriction fluctuating effect, this part requires that performance could meet the force use value of drawing compared with the requirement that high pretightening force to be reached certain, and existing working method force value is low, and first pulling force is little cannot meet design requirement.
Summary of the invention
It is an object of the invention to propose a kind of method improving extension spring force value.
The technical solution of the present invention is,
1, turner: first time is wound around, is placed on steel wire on material frame with biscuit, and one end of steel wire is fixed on lathe charging folder place, requires that selection buckles, pitch according to drawing, carries out close around processing;
2, cut off: length often holds the surplus cut-out steel wire reserving and being wound around for two times by drawing;
3, temper: by the workpiece tempering stable dimensions that first time twines, the processing parameter of tempering is determined according to material therefor;
4, after the part sky after tempering being as cold as room temperature, one end of part is extracted part length and is placed on the fixing frock clamp of lathe, carries out second time and is wound around;
5, temper: the spring after being wound around two times carries out tempering stable dimensions, and the processing parameter of tempering is determined according to material therefor;
6, crotch processed by drawing by part after tempering;
7, temper: the stabilizing treatment that part is carried out hook portion;
8, halt process: spring is carried out 5-10 stretch processing.
The advantage that the present invention has and useful effect,
The present invention adopts two winding technologies, first time is wound around and produces certain stress, when second time is wound around due to the more big principle of the more big reactive force of reactive force, effectively add preliminary tension for second time is wound around thus improves the force value of spring, avoid unnecessary trial-production and examine qualification rate with the once friendship that waste improves elastic part. This invention is not only applicable to the spring of vertiplane key position, in being applicable to the processing of all important parts requiring stress higher and producing.
Embodiment
The concrete grammar of the present invention is as follows:
1, turner: first time is wound around, is placed on steel wire on material frame with biscuit, and one end of material is fixed on lathe charging folder place, requires according to drawing to select suitable to buckle, pitch, carries out close around processing.
2, cut off: length often holds surplus (generally often holding 3-4 circle) the cut-out steel wire reserving and being wound around for two times on request.
3, temper: the workpiece tempering stable dimensions that first time is twined.
4, pincers worker: after the part sky after tempering is as cold as room temperature, it is for subsequent use that part length charging is extracted in one end (staying balance) of part.
5, turner: be placed on by part on the fixing frock clamp of lathe, extracts part and loads lathe charging folder place, carries out second time and is wound around.
6, temper: the spring after being wound around two times carries out tempering stable dimensions.
7, pincers worker: crotch processed by drawing by the part after tempering.
8, temper: the stabilizing treatment that part is carried out hook portion.
9, halt process: in order to eliminate stress, spring is carried out 5-10 stretch processing.
10, dynamometry: carry out force value detection on request.
Embodiment one
Prepare centrifugal limit motion block spring
Drawing requires:
Material: 1Cr18Ni9 steel wire diameter:Spring outer diameter:
Free height: 60.5 �� 1mm building ring: 38.5 �� 1
First power: force value 15.2 �� 1.06N when length is 68.4
Second point power: force value 22.5 �� 1.57N when length is 94.4
1, turner: be wound around for the first time, is placed on steel wire on material frame with biscuit, and one end of material is fixed on lathe charging folder place, requires that selection buckles, pitch according to drawing, carries out close around processing guarantee spring outer diameter:
2, cut off: length often holds the surplus reserving and being wound around for two times on request, ensure that work number of turns 44.5-46.5 cuts off steel wire.
3, temper: be that in the tempering circulation formula tempering stove of 360 �� 10 DEG C, insulation is empty cold after 30 minutes in temperature by the workpiece twined for the first time, stable dimensions.
4, pincers worker: after the part sky after tempering is as cold as room temperature, it is for subsequent use that part length charging is extracted in one end (staying balance) of part.
5, turner: be placed on by part on the fixing frock clamp of lathe, extracts part and loads lathe charging folder place, carries out second time and is wound around guarantee spring outer diameter:
6, temper: be that in the tempering circulation formula tempering stove of 360 �� 10 DEG C, insulation is empty cold after 30 minutes in temperature by the spring after two windings, stable dimensions.
7, pincers worker: crotch processed by drawing by the part after tempering, finish size 60.5 �� 1, guarantee opening size��3 and size 6 �� 1.
8, temper: be empty cold after being incubated 30 minutes in the tempering circulation formula tempering stove of 360 �� 10 DEG C by shaping rear part in temperature, stable dimensions.
9, halt process: under spring being pulled to maximum working load in order to eliminate stress, length 94.4mm carries out 5-10 stretch processing, eliminate machining stress.
10, dynamometry: the part after eliminating stress is carried out force value detection on the torsional tester of 100 newton, and detected result is as follows:
First power: when spring is pulled to 68.4mm, spring force value is 16N
Second point power: when spring is pulled to 94.4mm, spring force value is 23N
Find out that 2 force value all can meet drawing requirement from test-results, save starting material, reduce energy consumption, ensure once to hand over inspection qualification rate to be 100%.
Embodiment two
Prepare centrifugal limit motion block spring
Drawing requires:
Material: 70C steel wire diameter:Spring outer diameter:
Free height: 50 �� 1mm building ring: 22 �� 1
First power: force value 57 �� 4N when length is 65
Second point power: force value 70 �� 6N when length is 75
1, turner: be wound around for the first time, is placed on steel wire on material frame with biscuit, and one end of material is fixed on lathe charging folder place, requires that selection buckles, pitch according to drawing, carries out close around processing guarantee spring outer diameter:
2, cut off: length often holds the surplus reserving and being wound around for two times on request, ensure that work number of turns 22-24 cuts off steel wire.
3, temper: be that in the tempering circulation formula tempering stove of 280 �� 10 DEG C, insulation is empty cold after 30 minutes in temperature by the workpiece twined for the first time, stable dimensions.
4, pincers worker: after the part sky after tempering is as cold as room temperature, it is for subsequent use that part length charging is extracted in one end (staying balance) of part.
5, turner: be placed on by part on the fixing frock clamp of lathe, extracts part and loads lathe charging folder place, carries out second time and is wound around guarantee spring outer diameter:
6, temper: be that in the tempering circulation formula tempering stove of 280 �� 10 DEG C, insulation is empty cold after 30 minutes in temperature by the spring after two windings, stable dimensions.
7, pincers worker: crotch processed by drawing by the part after tempering, finish size 50 �� 1, guarantee opening size��3 and size 6 �� 1.
8, temper: be empty cold after being incubated 30 minutes in the tempering circulation formula tempering stove of 280 �� 10 DEG C by shaping rear part in temperature, stable dimensions.
9, halt process: under spring being pulled to maximum working load in order to eliminate stress, length 25mm carries out 5-10 stretch processing, eliminate machining stress.
10, dynamometry: the part after eliminating stress is carried out force value detection on the torsional tester of 100 newton, and detected result is as follows:
First power: when spring is pulled to 65mm, spring force value is 57 �� 4N
Second point power: when spring is pulled to 75mm, spring force value is 70 �� 6N
Find out that 2 force value all can meet drawing requirement from test-results, save starting material, reduce energy consumption, ensure once to hand over inspection qualification rate to be 100%.
Claims (1)
1. improve a method for extension spring force value, it is characterized in that,
(1), turner: first time is wound around, and is placed on material frame with the form of biscuit by steel wire, and one end of steel wire is fixed on lathe charging folder place, requires that selection buckles, pitch according to drawing, carries out close around processing;
(2), cut off: length often holds the surplus cut-out steel wire reserving and being wound around for two times by drawing;
(3), temper: by the workpiece tempering stable dimensions that first time twines, the processing parameter of tempering is determined according to material therefor;
(4), the part sky after tempering is as cold as room temperature after, one end of part is extracted part length and is placed on the fixing frock clamp of lathe, carries out second time and is wound around;
(5), temper: the spring after being wound around two times carries out tempering stable dimensions, and the processing parameter of tempering is determined according to material therefor;
(6), crotch processed by drawing by part after tempering;
(7), temper: the stabilizing treatment that part is carried out hook portion;
(8), halt process: spring is carried out 5-10 stretch processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171479.5A CN103949856B (en) | 2014-04-25 | 2014-04-25 | A kind of method improving extension spring force value |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410171479.5A CN103949856B (en) | 2014-04-25 | 2014-04-25 | A kind of method improving extension spring force value |
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| Publication Number | Publication Date |
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| CN103949856A CN103949856A (en) | 2014-07-30 |
| CN103949856B true CN103949856B (en) | 2016-06-01 |
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| CN201410171479.5A Active CN103949856B (en) | 2014-04-25 | 2014-04-25 | A kind of method improving extension spring force value |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106287564A (en) * | 2016-09-30 | 2017-01-04 | 浙江鼎鑫工艺品有限公司 | A kind of lantern |
| CN111715781B (en) * | 2019-03-18 | 2022-03-15 | 深圳市千业精密金属有限公司 | Spring forming process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10315419B3 (en) * | 2003-04-04 | 2004-05-19 | Thyssenkrupp Automotive Ag | Production of screw springs or stabilizers made from steel comprises comparing the heating temperature over the rod lengths and maintaining between the rollers |
| CN101439458B (en) * | 2007-11-20 | 2011-10-12 | 上海中国弹簧制造有限公司 | Process for manufacturing heavily stressed valve spring |
| DE102009007020A1 (en) * | 2009-01-31 | 2010-08-26 | Schaeffler Technologies Gmbh & Co. Kg | Coil spring i.e. legless coil spring, for use in e.g. braking system in automobile, has body formed by winding of wire material, where wire material forms cross section having flattening part in axial plane that comprises spring center axis |
| CN101829882B (en) * | 2010-01-11 | 2012-01-25 | 安徽安簧机械股份有限公司 | Manufacture method of variable cross-section reed with high strength of more than 1800 MPa |
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