CN102275062B - Automatic suspension spring manufacturing technique - Google Patents
Automatic suspension spring manufacturing technique Download PDFInfo
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- CN102275062B CN102275062B CN 201110067269 CN201110067269A CN102275062B CN 102275062 B CN102275062 B CN 102275062B CN 201110067269 CN201110067269 CN 201110067269 CN 201110067269 A CN201110067269 A CN 201110067269A CN 102275062 B CN102275062 B CN 102275062B
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Abstract
The invention relates to an automatic suspension spring manufacturing technique, which solves the defect that the traditional spring processing technique is not suitable for the processing of suspension springs. The automatic suspension spring manufacturing technique comprises the following steps: selecting a material and coiling into a spring; performing heat treatment; strongly compressing; shot-blasting; painting dressing; load sorting and color marking; and marking and packing, wherein different compression techniques are determined according to the load requirements, coil springs with different load requirements can be differentiated through load sorting, and meanwhile, the coil springs which do not conform to the requirements are sorted out and remedied, thereby reducing the cost. The automatic suspension spring manufacturing technique provided by the invention is applicable to the processing requirements of suspension springs with different loads, at the same time, a conveying device is controlled by a controller to automatically complete the changover of operational sequences, and automation in the overall process is realized.
Description
Technical field
The present invention relates to a kind of processing method of spring, especially a kind of bearing spring production technology of automation.
Background technology
Suspension in the automobile is an important guarantee of running car comfortableness; suspension property is good, the better effects if of damping, and car steering comfortableness and riding comfort are all relatively good; suspension property is good; can absorb more vibration, these vibrations just can not be directly delivered to the compartment, and automobile chassis forms with wheel by the suspension support and flexibly connects; the vibration that having eliminated is rigidly connected brings; protect the core-engine of fixing auto parts and components, especially automobile on the chassis, guaranteed the service life of automobile.The quality of suspension property is also directly relevant with the adaptability of automobile road pavement, and suspension property is good, and automobile is also more intense to the adaptability of complex road surface.
Guarantee the quality of suspension property, important parts are exactly bearing spring, and the load of bearing spring and fatigue life all are the importance that determines the bearing spring index, and these indexs are associated with the processing technology of bearing spring.
Such as: Patent Office of the People's Republic of China has announced a CN100563912C patent on December 2nd, 2009, name is called big linear diameter spring cold coiling processing technics, and processing step comprises: anneal of material polishing processing, coiling, destressing temper, cut that circle, end circle corase grind are flat, shot-peening, destressing temper, quenching, oil hardening, tempering, suppress processings, end circle correct grinding and put down processing, chamfering deburring, tempering, packing and put in storage.But this technique is not suitable for processing bearing spring, to the bearing spring of different load not for operation.
Summary of the invention
The invention solves the shortcoming that existing spring machining process is not suitable for the processing bearing spring, a kind of automatic suspension spring manufacturing technique that has for the operation of the bearing spring of different load is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of automatic suspension spring manufacturing technique, it is characterized in that comprising the steps: (1) according to bearing spring burden requirement choose and select materials and the wind spring moulding, wind spring carries out at the automatic numerical control spring coiling machine, by computer angle is realized control during wind spring, then be transported to heat treatment step by autoloader;
(2) autoloader and heat treatment step cooperatively interact, and heat treatment step is according to carrying out homogeneous heat treatment with a batch material same load requirement, and the autoloader interrupter duty will require a wind spring be sent to same heat treatment step with batch material same load;
(3) in the heat treatment step wind spring is carried out average tempering, temperature is controlled at 350-450 ℃, and tempering is finished in the combustion gas tempering furnace, is moved on the power press by manipulator after the tempering;
(4) on power press, wind spring is compressed, according to the burden requirement of bearing spring and the requirement of fatigue behaviour, determine pressure, time, stroke and the compact model of compression when suppressing, be transported to the ball blast operation by conveyer after suppressing;
(5) wind spring is sent in the shot-blasting machine, and the coverage rate of ball blast will reach more than 95%, and intensity reaches more than the 0.4A, is sent to pretreatment procedure behind the ball blast;
(6) pretreatment procedure mainly carries out application to wind spring, will clean first before the application, adopts the method for spraying that wind spring is carried out application again;
(7) to load sorting also by the differentiation of mark look to wind spring after the application, the load sorting will be determined according to the Design cooling load of bearing spring, for the again tempering of wind spring of excess load, then suppress and ball blast, again again pre-treatment, to revise to improve for the wind spring of underload and become again again tempering of excess load, then suppress and ball blast, again again pre-treatment re-starts load sorting and mark look;
(8) by different mark looks wind spring is carried out mark, packing warehouse-in after the classification.
Transfer between the different operations of bearing spring all is to finish by automatic conveying device, do not need manually to operate, these conveying devices comprise autoloader, manipulator, conveyer, conveying device work is set in conjunction with the burden requirement of bearing spring according to the material of bearing spring in batches, performance such as same batch of material is all similar, comprise composition and the performance of self, general same batch of material is used for making the bearing spring of same load, same batch of material also will be finished with in an operation, parameter during such as wind spring, carry out simultaneously tempering in the tempering process, suppress simultaneously, simultaneously ball blast, to wait if having time in the time of tempering, this moment, automatic conveying device just became intermittent operation, once was transported in the combustion gas tempering furnace, then waited for, transfer to when suppressing operation after all tempering is finished Deng the wind spring in this combustion gas tempering furnace, next group wind spring is sent in the combustion gas tempering furnace again, carries out successively, finishes the transportation work of same batch of material; To require according to the different load of bearing spring to carry out respectively when suppressing operation, also different to the surface requirements of bearing spring, also different to the technique of suppressing operation; When according to load wind spring being carried out sorting, the load sorting decides by the elastic force that compression produces, the laggard rower look of sorting is distinguished, in this operation, undesirable wind spring to be sorted out, at this moment, the load of wind spring may superelevation or step-down, therefore enters corresponding operation for the wind spring of different actual loads and re-starts processing, in order to again load is reached standard, in order to improve yield rate.
As preferably, requirement according to bearing spring when on the power press wind spring being compressed is divided into two kinds, and a kind of is that heat is suppressed, and the wind spring behind the average tempering directly compresses to power press, another kind is cold suppressing, and is cooled to 200 ℃ behind the average tempering and moves on the power press and compress.High for fatigue life, the bearing spring that strain is large uses heat to suppress, directly compress behind the average tempering, the internal organizational structure of tempering meeting appropriate change wind spring is suppressed by heat, again again finely tunes internal organizational structure, guarantee that wind spring reaches the requirement of design, for the low bearing spring of load, use cold compression, do not change internal organizational structure during compression.
As preferably, after suppressing, heat carries out ball blast, also to carry out the stress ball blast behind the ball blast; Carry out ball blast after cold the suppressing, select as required behind the ball blast wind spring is carried out the stress ball blast.Will carry out the stress ball blast after heat is suppressed, mainly be to change internal organizational structure in the compression process, and the requirement of load is high, and the duty more complicated by the stress ball blast, reaches the surface-treated requirement of wind spring; The bearing spring strain of underload is less, so the technological requirement of the bearing spring of the relative high load capacity of requirement of the bearing spring of underload is low.
As preferably, to detect wind spring after the tempering, enter the wind spring that heat suppresses operation and mainly carry out the detection of hardness.Heat is suppressed fatigue life and the elastic deformation amount of main consideration bearing spring, the impact of these parameters in tempering is larger, and this parameter also mainly is guaranteed in tempering, therefore to detect wind spring after the tempering, if the defective next process that just do not enter into, it is remedied, remedy and mainly still carry out again temper.
As preferably, to carry out automatically comprehensively flaw detection to wind spring by defectoscope behind the wind spring, according to the result of detection sorting, zero defect then enters down tempering process one after the flaw detection, and defectiveness then enters the feed back operation after the flaw detection.Bearing spring is one of index that guarantees vehicle safety performance, therefore importance is higher, also stricter to material, can not there be defective, therefore will detect a flaw to wind spring, whether through wind spring being damaged behind the automatic numerical control spring coiling machine, defectoscope can be surveyed the defective of wind spring material internal, if defectiveness can be got rid of as early as possible, prevent the subsequent handling waste.
As preferably, the transhipment whole process of wind spring is controlled automatically by controller, is provided with sensor on the controller, and the operation conditions of Sensor monitoring wind spring also passes to controller, controller control autoloader, manipulator, conveyer with signal.Controller will receive the operation conditions of each operation, sensor receives signal and passes to controller, by controller control automatic conveying device, determine whether workpiece is transported to corresponding operation, omnidistance realization automation, reduced workman's labour intensity, improved working (machining) efficiency, operated also safer.
The invention has the beneficial effects as follows: determine different compression process by burden requirement, by the load sorting wind spring that different load requires is distinguished, simultaneously undesirable wind spring is got rid of and remedied, reduced cost, the processing request that adapts to the bearing spring of different load, automatically finished simultaneously the conversion of operation by controller control conveying device, realize whole-course automation.
Description of drawings
Fig. 1 is a kind of schematic flow sheet of the present invention.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: a kind of automatic suspension spring manufacturing technique (referring to accompanying drawing 1), comprise the steps: (1) according to bearing spring burden requirement choose and select materials and wind spring moulding on the automatic numerical control spring coiling machine, by computer angle is realized control during wind spring, 4000N-4500N is the first load, 4500N-5000N is the second load, then by defectoscope wind spring is carried out automatically comprehensively flaw detection, according to the result of detection sorting, zero defect then enters into next process after the flaw detection, the discovery defective is determined the subsequent treatment operation according to defect rank after the flaw detection, comprises and scrapping and feed back;
(2) the signal controlling autoloader of controller receiving sensor according to the principle of same batch of material, same load, will be transported to a collection of wind spring and carry out tempering in the combustion gas tempering furnace, and temperature is controlled at 350-450 ℃;
(3) wind spring to the second load detects after the tempering, mainly monitors the hardness on wind spring surface, and hardness meets the requirements between 45-51HRC, otherwise the also tempering of again quenching is to reach standard;
(4) controller control manipulator, after the tempering wind spring of two kinds of burden requirements moved on the power press and compress, the wind spring of the first load cools to first 200 degrees centigrade, compresses again, and compression time is set as 1 second, compression travel is 200mm, pressure and limiting altitude are 110mm, and the wind spring control temperature of the second load is compressed at 380 ℃ again, and compression time is set as 1 second, compression travel is 250mm, and pressing also, the limit is 118mm;
(5) be sent to shot-blasting machine after the compression and carry out surface treatment, the coverage rate of ball blast is more than 95, and intensity is carried out the stress ball blast at 0.45A behind the ball blast, enter pretreatment procedure behind the ball blast;
(6) behind the ball blast wind spring is cleaned, with 80 ℃ hot water cleaning, 50 ℃ of lower degreasings, in the normal temperature washing, spray after the washing after the degreasing after cleaning first;
(7) sorting of loading after the spraying, the first load is placed into a class mark look, the second load is placed into a class mark look, two kinds of mark looks different, be higher than the second load and be sent to tempering process, again processing is lower than the first load and then improves first its load to exceeding the second burden requirement, be sent to again tempering process, again processing;
(8) by different mark looks wind spring is carried out mark, packing warehouse-in after the classification.
Above-described embodiment is a kind of preferred version of the present invention, is not the present invention is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (5)
1. automatic suspension spring manufacturing technique, it is characterized in that comprising the steps: (1) according to bearing spring burden requirement choose and select materials and the wind spring moulding, wind spring carries out at the automatic numerical control spring coiling machine, by computer angle is realized control during wind spring, then be transported to heat treatment step by autoloader;
(2) autoloader and heat treatment step cooperatively interact, and heat treatment step is according to carrying out homogeneous heat treatment with a batch material same load requirement, and the autoloader interrupter duty will require a wind spring be sent to same heat treatment step with batch material same load;
(3) in the heat treatment step wind spring is carried out average tempering, temperature is controlled at 350-450 ℃, and tempering is finished in the combustion gas tempering furnace, is moved on the power press by manipulator after the tempering;
(4) on power press, wind spring is compressed, when suppressing according to the burden requirement of bearing spring and the requirement of fatigue behaviour, determine the pressure of compression, time, stroke and compact model, be transported to the ball blast operation by conveyer after suppressing, requirement according to bearing spring when on the power press wind spring being compressed is divided into two kinds, a kind of is that heat is suppressed, wind spring behind the average tempering directly compresses to power press, another kind is cold suppressing, being cooled to 200 ℃ behind the average tempering moves on the power press and compresses, cold the suppressing of employing of load 4000N-4500N, the employing heat of load 4500N-5000N is suppressed;
(5) wind spring is sent in the shot-blasting machine, and the coverage rate of ball blast will reach more than 95%, and intensity reaches more than the 0.4A, is sent to pretreatment procedure behind the ball blast;
(6) pretreatment procedure mainly carries out application to wind spring, will clean first before the application, adopts the method for spraying that wind spring is carried out application again;
(7) to load sorting also by the differentiation of mark look to wind spring after the application, the load sorting will be determined according to the Design cooling load of bearing spring, for the again tempering of wind spring of excess load, then suppress and ball blast, again again pre-treatment, to revise to improve for the wind spring of underload and become again again tempering of excess load, then suppress and ball blast, again again pre-treatment re-starts load sorting and mark look;
(8) by different mark looks wind spring is carried out mark, packing warehouse-in after the classification.
2. automatic suspension spring manufacturing technique according to claim 1 is characterized in that carrying out ball blast after heat is suppressed, and also will carry out the stress ball blast behind the ball blast; Carry out ball blast after cold the suppressing, select as required behind the ball blast wind spring is carried out the stress ball blast.
3. automatic suspension spring manufacturing technique according to claim 1 and 2 is characterized in that will detecting wind spring after the tempering, enters the wind spring that heat suppresses operation and mainly carries out the detection of hardness.
4. automatic suspension spring manufacturing technique according to claim 1 and 2, it is characterized in that to carry out automatically comprehensively flaw detection by defectoscope to wind spring behind the wind spring, according to the result of detection sorting, zero defect then enters down tempering process one after the flaw detection, and defectiveness then enters the feed back operation after the flaw detection.
5. automatic suspension spring manufacturing technique according to claim 1 and 2, the transhipment whole process that it is characterized in that wind spring is controlled automatically by controller, be provided with sensor on the controller, the operation conditions of Sensor monitoring wind spring also passes to controller with signal, controller control autoloader, manipulator, conveyer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110067269 CN102275062B (en) | 2011-03-21 | 2011-03-21 | Automatic suspension spring manufacturing technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110067269 CN102275062B (en) | 2011-03-21 | 2011-03-21 | Automatic suspension spring manufacturing technique |
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| CN102275062A CN102275062A (en) | 2011-12-14 |
| CN102275062B true CN102275062B (en) | 2013-02-13 |
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| CN 201110067269 Expired - Fee Related CN102275062B (en) | 2011-03-21 | 2011-03-21 | Automatic suspension spring manufacturing technique |
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Families Citing this family (6)
| 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 |
| CN103290194B (en) * | 2013-03-19 | 2015-04-29 | 钱江弹簧（北京）有限公司 | A manufacture process for a high stress suspension spring |
| CN104690495A (en) * | 2013-12-05 | 2015-06-10 | 上海中国弹簧制造有限公司 | Manufacturing process of high-stress suspension spring |
| CN110052816B (en) * | 2019-05-17 | 2023-10-31 | 杭州富春弹簧有限公司 | Automatic press-fitting device for arc spring |
| CN110814236A (en) * | 2019-11-22 | 2020-02-21 | 常州泰瑞弹簧有限公司 | Spring coiling method for compression spring based on automatic spring coiling machine |
| CN111931308B (en) * | 2020-08-13 | 2024-02-20 | 无锡金峰园弹簧制造有限公司 | Selection method for determining test stress corresponding to test load during spring strong pressure treatment |
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|---|---|---|---|---|
| DE19637968C2 (en) * | 1996-09-18 | 2002-05-16 | Univ Freiberg Bergakademie | Process for the high-temperature thermomechanical production of spring leaves for leaf springs and / or leaf spring links |
| CN101157173A (en) * | 2007-10-18 | 2008-04-09 | 常州市铭锦弹簧有限公司 | Big linear diameter spring cold coiling processing technics |
| CN101439458A (en) * | 2007-11-20 | 2009-05-27 | 上海中国弹簧制造有限公司 | Process for manufacturing heavily stressed valve spring |
| CN101642868A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technic for processing suspension spring |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050362A (en) * | 2002-07-22 | 2004-02-19 | Exedy Corp | Method of manufacturing disc spring |
| US20050081382A1 (en) * | 2003-10-20 | 2005-04-21 | Eastman Kodak Company | Apparatus and method for making a shaped spring assembly |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19637968C2 (en) * | 1996-09-18 | 2002-05-16 | Univ Freiberg Bergakademie | Process for the high-temperature thermomechanical production of spring leaves for leaf springs and / or leaf spring links |
| CN101157173A (en) * | 2007-10-18 | 2008-04-09 | 常州市铭锦弹簧有限公司 | Big linear diameter spring cold coiling processing technics |
| CN101439458A (en) * | 2007-11-20 | 2009-05-27 | 上海中国弹簧制造有限公司 | Process for manufacturing heavily stressed valve spring |
| CN101642868A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technic for processing suspension spring |
Non-Patent Citations (1)
| Title |
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| JP特开2004-50362A 2004.02.19 |
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Address after: 315300 No. 22, No. 78, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Patentee after: Qianjiang spring (Hangzhou) Co., Ltd. Address before: 315300 No. 22, No. 78, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Patentee before: Qianjiang Spring Co., Ltd. |
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Granted publication date: 20130213 Termination date: 20190321 |