CN102248097A - Compression spring processing process - Google Patents
Compression spring processing process Download PDFInfo
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- CN102248097A CN102248097A CN201110151134XA CN201110151134A CN102248097A CN 102248097 A CN102248097 A CN 102248097A CN 201110151134X A CN201110151134X A CN 201110151134XA CN 201110151134 A CN201110151134 A CN 201110151134A CN 102248097 A CN102248097 A CN 102248097A
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Abstract
The invention relates to a compression spring processing process. The compression spring processing process is characterized by comprising the following process steps of: rolling, cutting into rings, reducing diameters, quenching, performing primary tempering, inspecting mechanical properties, setting, grinding end faces, correcting the length and the concentricity of springs, performing secondary tempering, setting, performing primary heating and loading aging treatment, grinding the end faces, detecting, performing sand blasting, performing magnetic powder inspection, performing sand blasting, performing surface treatment, performing secondary heating and loading aging treatment, and detecting finished products. By the process, the deformation of the springs in the processing process can be reduced, the geometric dimension of the springs is ensured, and production efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of compression spring machining process, be used for processed springs and curl up than greatly, pitch is big again, in the compression springs of the number of effective coils smaller or equal to 3 circles.
Background technology
The compression spring has general application at each industrial circle, but curl up than greatly for spring, pitch is big again, the number of effective coils is smaller or equal to the compression spring of 3 circles, produce very big distortion in its process, spring verticality, length are difficult to control, and physical dimension can not satisfy technological requirement, need experienced workman to repair physical dimension and the load that spring could guarantee spring repeatedly.Not only difficulty of processing is big, the cycle is long, and has had a strong impact on the manufacturing schedule of spring.
Former spring manufacturing process flow: roll-break the circle-grinding end face-correcting spring length-quenching-gauge length-tempering-mechanical performance inspection-loading Ageing Treatment-correct grinding-check-sandblast-magnetic powder inspection-sandblast-surface treatment-loading Ageing Treatment-product inspection of heating of handle-heating of halting, the external diameter camber of spring mainly is created in the processing of halting, in the load up ageing processing procedure of heating, spring verticality, length are difficult to control, and the load of spring can't guarantee.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of compression spring machining process, and this technology can reduce the distortion of spring work in-process, has guaranteed the physical dimension of spring, has improved production efficiency greatly.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of compression spring machining process is characterized in that processing step is as follows: roll-break the circle-receipts footpath-quenching-time tempering-mechanical performance inspection-processing of halting-grinding end face-correcting spring length, the concentricity-double tempering-processing of the halting-load up ageing processing-correct grinding end face-check-sandblast-magnetic powder inspection-sandblast-surface treatment of once heating-secondary heating load up ageing processing-product inspection.
Described Quenching Treatment is: heat 850 ± 10 ℃ in salt bath furnace, be incubated 7～8 minutes, and then cool off in 20～100 ℃ the oil.
A described temper is: heat 430～520 ℃ in stove, be incubated 60 minutes; Described double tempering is: heat 400～430 ℃ in stove, be incubated 60 minutes.
The described load up ageing of once heating is treated to: spring is contained on the special fixture, and is depressed into circle and contacts with circle, and be under 110 ± 10 ℃ in temperature, be incubated 2 hours; The secondary heating load up ageing is treated to: spring is contained on the special fixture, and is depressed into circle and contacts with circle, and be under 110 ± 10 ℃ in temperature, be incubated 1～1.5 hour.
This compression spring machining process has increased once receives the footpath and the processing of halting, dwindle the diameter of spring building ring before the quenching, halting of spring handled and the finished product external diameter requirement of the external diameter complex spring of actual effect processing rear spring, increase a lonneal and the processing of halting, halt handle before because the stress that spring produces is greater than the elastic limit of steel wire, spring is the generation plastic deformation aspect length, make the spring contraction in length, the building ring outside dimension increases.Correction by concentricity once more, halt once more and handle and heat the load up ageing processing, guaranteed the linearity of spring, spring length slightly shortens simultaneously, the spring external diameter slightly increases, through finish grinding and proofreading and correct the loading Ageing Treatment of heating again, the elastic limit of spring and the ability of bearing load increase, and having improved the spring performance and having improved the qualification rate aspect has positive effect.
The specific embodiment
A kind of compression spring machining process is characterized in that processing step is as follows:
1) rolls: the core wind spring is arranged on lathe, and guarantee the technical parameter of bracing ring external diameter, pitch, length, building ring, bracing ring and number of total coils;
2) disconnected circle: by the building ring of technological requirement, total circle with the broken string scissors circle that breaks;
3) receive the footpath: spring is installed in
As Fig. 1On the shown specific purpose tool, bracing ring is fixed on the big end of mandrel, the building ring of spring is wrapped on the path simultaneously, reaches the purpose of dwindling spring building ring external diameter;
4) quench: in salt bath furnace, heat 850 ± 10 ℃, be incubated 7～8 minutes, and then cool off in 20～100 ℃ the oil;
5) tempering: in stove, heat 430～520 ℃, be incubated 60 minutes;
6) mechanical performance inspection: the mechanical performance σ of sampling Detection spring
b=1519～1764MPa;
7) processing of halting: spring housing on suitable mandrel, is pressed and 10 times;
8) grinding end face: with abrasive machine grinding both ends of the spring face;
9) correcting spring length, concentricity;
10) double tempering: in stove, heat 400～430 ℃, be incubated 60 minutes;
11) processing of halting: spring housing on suitable mandrel, is pressed and 10 times;
12) load up ageing of once heating is handled: spring is contained on the special fixture, and is depressed into circle and contacts with circle, and be under 110 ± 10 ℃ in temperature, be incubated 2 hours;
13) correct grinding end face:, guarantee external diameter, length, the number of effective coils, number of total coils and the perpendicularity of spring with abrasive machine correct grinding both ends of the spring face;
14) check: 100% checks external diameter, length, the number of effective coils, number of total coils, perpendicularity and the load of spring;
15) sandblast-magnetic powder inspection-sandblast
16) surface treatment: cadmium plating in ammonium chloride electrolyte, phosphoric acid or phosphate oxidation, hydrophobic is handled;
17) the secondary heating load up ageing is handled: spring is contained on the special fixture, and is depressed into circle and wants to contact with circle, and be under 110 ± 10 ℃ in temperature, be incubated 1～1.5 hour;
18) product inspection: 100% checks external diameter, length, the number of effective coils, number of total coils, perpendicularity and the load of spring.
Claims (4)
1. a compression spring machining process is characterized in that processing step is as follows: roll-break the circle-receipts footpath-quenching-time tempering-mechanical performance inspection-processing of halting-grinding end face-correcting spring length, the concentricity-double tempering-processing of the halting-load up ageing processing-correct grinding end face-check-sandblast-magnetic powder inspection-sandblast-surface treatment of once heating-secondary heating load up ageing processing-product inspection.
2. compression spring machining process as claimed in claim 1 is characterized in that described Quenching Treatment is: heat 850 ± 10 ℃ in salt bath furnace, be incubated 7～8 minutes, and then cool off in 20～100 ℃ the oil.
3. compression spring machining process as claimed in claim 1 is characterized in that a described temper is: heat 430～520 ℃ in stove, be incubated 60 minutes; Described double tempering is: heat 400～430 ℃ in stove, be incubated 60 minutes.
4. compression spring machining process as claimed in claim 1 is characterized in that the described load up ageing of once heating is treated to: spring is contained on the special fixture, and is depressed into circle and contacts with circle, and be under 110 ± 10 ℃ in temperature, be incubated 2 hours; The secondary heating load up ageing is treated to: spring is contained on the special fixture, and is depressed into circle and contacts with circle, and be under 110 ± 10 ℃ in temperature, be incubated 1～1.5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110151134XA CN102248097A (en) | 2011-06-08 | 2011-06-08 | Compression spring processing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110151134XA CN102248097A (en) | 2011-06-08 | 2011-06-08 | Compression spring processing process |
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| CN102248097A true CN102248097A (en) | 2011-11-23 |
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| CN201110151134XA Pending CN102248097A (en) | 2011-06-08 | 2011-06-08 | Compression spring processing process |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554575A (en) * | 2012-02-06 | 2012-07-11 | 山东宁津弹簧有限公司 | Spring processing technology |
| CN102921842A (en) * | 2012-10-26 | 2013-02-13 | 福清永动力弹簧科技有限公司 | Process for machining high temperature resistant spring by 50CrVA steels |
| CN103801639A (en) * | 2012-11-14 | 2014-05-21 | 江西昌河航空工业有限公司 | Stage treatment method for improving fatigue life of spring |
| CN103805757A (en) * | 2014-03-03 | 2014-05-21 | 沈阳飞机工业（集团）有限公司 | Technique for solving hardening cracks of grinding end surface of spring part |
| CN103859866A (en) * | 2012-12-17 | 2014-06-18 | 施丽卿 | Spring for mattress |
| CN104057002A (en) * | 2014-05-26 | 2014-09-24 | 安徽红桥金属制造有限公司 | Compression spring processing technology |
| CN104057262A (en) * | 2014-07-02 | 2014-09-24 | 安庆谢德尔汽车零部件有限公司 | High-efficiency spiral spring proofing treatment method |
| CN104087744A (en) * | 2014-07-23 | 2014-10-08 | 贵州钢绳股份有限公司 | Combined type thermal treatment process for steel wire |
| CN105033123A (en) * | 2015-09-14 | 2015-11-11 | 沈阳泰恒通用技术有限公司 | Processing method for hot rolling titanium spring with spring wire diameter of 12 to 45mm |
| CN105290279A (en) * | 2014-07-28 | 2016-02-03 | 永嘉县三和弹簧有限公司 | Machining process of anti-blocking spring of high-temperature resisting valve base and slope molding equipment thereof |
| CN105921649A (en) * | 2016-06-22 | 2016-09-07 | 山西平阳重工机械有限责任公司 | Preparation method of high-precision high-temperature alloy spring |
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
| CN106367578A (en) * | 2016-08-29 | 2017-02-01 | 中航动力股份有限公司 | High-temperature alloy spring forming method |
| CN107838329A (en) * | 2017-10-28 | 2018-03-27 | 曲阜天博汽车电器有限公司 | The manufacture craft and its spring product of helical compression eccentric spring |
| CN108080541A (en) * | 2017-12-14 | 2018-05-29 | 浙江兰菱机械有限公司 | A kind of trapezoid cross section brute spring processing technology |
| CN109013985A (en) * | 2018-08-26 | 2018-12-18 | 卓越五金弹簧（深圳）有限公司 | A kind of torsion pressure spring processing technology |
| EP3460079A1 (en) * | 2017-09-25 | 2019-03-27 | Microtecnica S.r.l. | Method of manufacturing a spring with improved thermal stabilization |
| CN110976722A (en) * | 2015-03-31 | 2020-04-10 | 日本发条株式会社 | Method for manufacturing coil spring |
| CN111022539A (en) * | 2019-11-28 | 2020-04-17 | 浙江兰菱弹簧有限公司 | Valve spring capable of meeting large-load and large-stroke requirements and forming method thereof |
| CN114770039A (en) * | 2022-04-13 | 2022-07-22 | 浙江骏马弹簧制造有限公司 | High-quality spring processing technology |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554575A (en) * | 2012-02-06 | 2012-07-11 | 山东宁津弹簧有限公司 | Spring processing technology |
| CN102921842A (en) * | 2012-10-26 | 2013-02-13 | 福清永动力弹簧科技有限公司 | Process for machining high temperature resistant spring by 50CrVA steels |
| CN102921842B (en) * | 2012-10-26 | 2014-10-08 | 福建永动力弹簧科技有限公司 | Process for machining high temperature resistant spring by 50CrVA steels |
| CN103801639B (en) * | 2012-11-14 | 2016-01-20 | 江西昌河航空工业有限公司 | A kind of hierarchical processing method improving spring fatigue life |
| CN103801639A (en) * | 2012-11-14 | 2014-05-21 | 江西昌河航空工业有限公司 | Stage treatment method for improving fatigue life of spring |
| CN103859866A (en) * | 2012-12-17 | 2014-06-18 | 施丽卿 | Spring for mattress |
| CN103805757A (en) * | 2014-03-03 | 2014-05-21 | 沈阳飞机工业（集团）有限公司 | Technique for solving hardening cracks of grinding end surface of spring part |
| CN104057002A (en) * | 2014-05-26 | 2014-09-24 | 安徽红桥金属制造有限公司 | Compression spring processing technology |
| CN104057002B (en) * | 2014-05-26 | 2016-09-07 | 安徽红桥金属制造有限公司 | A kind of compression spring processing process |
| CN104057262A (en) * | 2014-07-02 | 2014-09-24 | 安庆谢德尔汽车零部件有限公司 | High-efficiency spiral spring proofing treatment method |
| CN104057262B (en) * | 2014-07-02 | 2016-04-06 | 安庆谢德尔汽车零部件有限公司 | A kind of helical spring is efficiently drawn a design processing method |
| CN104087744A (en) * | 2014-07-23 | 2014-10-08 | 贵州钢绳股份有限公司 | Combined type thermal treatment process for steel wire |
| CN105290279A (en) * | 2014-07-28 | 2016-02-03 | 永嘉县三和弹簧有限公司 | Machining process of anti-blocking spring of high-temperature resisting valve base and slope molding equipment thereof |
| CN110976722A (en) * | 2015-03-31 | 2020-04-10 | 日本发条株式会社 | Method for manufacturing coil spring |
| CN105033123A (en) * | 2015-09-14 | 2015-11-11 | 沈阳泰恒通用技术有限公司 | Processing method for hot rolling titanium spring with spring wire diameter of 12 to 45mm |
| CN105921649A (en) * | 2016-06-22 | 2016-09-07 | 山西平阳重工机械有限责任公司 | Preparation method of high-precision high-temperature alloy spring |
| CN105921649B (en) * | 2016-06-22 | 2017-09-22 | 山西平阳重工机械有限责任公司 | A kind of preparation method of high-precision high temperature alloy spring |
| CN106011433A (en) * | 2016-08-03 | 2016-10-12 | 苏州市虎丘区浒墅关弹簧厂 | Heat treatment process of high strength spring |
| CN106367578A (en) * | 2016-08-29 | 2017-02-01 | 中航动力股份有限公司 | High-temperature alloy spring forming method |
| EP3460079A1 (en) * | 2017-09-25 | 2019-03-27 | Microtecnica S.r.l. | Method of manufacturing a spring with improved thermal stabilization |
| US10774410B2 (en) | 2017-09-25 | 2020-09-15 | Microtecnica S.R.L. | Method of manufacturing a spring with improved thermal stabilization |
| CN107838329A (en) * | 2017-10-28 | 2018-03-27 | 曲阜天博汽车电器有限公司 | The manufacture craft and its spring product of helical compression eccentric spring |
| CN107838329B (en) * | 2017-10-28 | 2020-03-17 | 曲阜天博汽车电器有限公司 | Manufacturing process of spiral compression eccentric spring and spring product thereof |
| CN108080541A (en) * | 2017-12-14 | 2018-05-29 | 浙江兰菱机械有限公司 | A kind of trapezoid cross section brute spring processing technology |
| CN109013985A (en) * | 2018-08-26 | 2018-12-18 | 卓越五金弹簧（深圳）有限公司 | A kind of torsion pressure spring processing technology |
| CN109013985B (en) * | 2018-08-26 | 2020-05-08 | 卓越五金弹簧（深圳）有限公司 | Torsional pressure spring processing technology |
| CN111022539A (en) * | 2019-11-28 | 2020-04-17 | 浙江兰菱弹簧有限公司 | Valve spring capable of meeting large-load and large-stroke requirements and forming method thereof |
| CN114770039A (en) * | 2022-04-13 | 2022-07-22 | 浙江骏马弹簧制造有限公司 | High-quality spring processing technology |
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Application publication date: 20111123 |