CN100509202C - A method for shaping socle girder type steeliness wheel felloe - Google Patents
A method for shaping socle girder type steeliness wheel felloe Download PDFInfo
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- CN100509202C CN100509202C CNB200710114722XA CN200710114722A CN100509202C CN 100509202 C CN100509202 C CN 100509202C CN B200710114722X A CNB200710114722X A CN B200710114722XA CN 200710114722 A CN200710114722 A CN 200710114722A CN 100509202 C CN100509202 C CN 100509202C
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Abstract
A method for molding a cantilever beam steel circular rim includes the steps of: blanking the blank, edge coiling, butt welding, slag shaving, welding line planishing, top cutting, head grinding, edge squeezing, cooling, enlarging, hydraulically molding, expanding, valve hole punching, eliminating the burr of the valve hole and squeezing the wheel flange edge; the method is characterized in that in the enlarging working procedure, the enlarging amount of the 15 degree series enlarging mold is 1.07 to 1.13, the enlarging amount of the common series enlarging mold is 1.13 to 1.17, and the enlarging amount of the DW series enlarging mold is 1.15 to 1.25; the corner radius value of roll wheel molded each time is strictly controlled in the hydraulically molding working procedure and the sequence in molding adopts the sequence from the width center of the plate to the two sides; the adjustment to the clearance of the mold is done, finally causes that the clearances of the upper roll wheel and the lower roll wheel are equal everywhere, and the clearance width is material thickness of the circular rim; and the vacuum hardening is adopted in the heat treating of the circular rim molding. The device greatly increases the quality of the circular rim product, the operation is easy and easy to realize.
Description
Technical field
The present invention relates to a kind of forming method of wheel rim, specifically is the forming method of socle girder type steeliness wheel felloe.
Background technology
Development along with society, the motor vehicles of China are also in continuous development, qualitative performance requirements to car load is more and more higher, so corresponding also more and more higher to the quality and the performance requirement of vehicle spare and accessory parts, wherein wheel is one of important spare and accessory parts of vehicle, also be one of automobile four big safety members, all very strict to its matching requirements of requirement for dynamic balance, welding quality requirement and wheel rim and tire.Therefore wheel rim quality quality directly influences the quality of wheel.
Sheet material wheel rim security performance aspect is more reliably than the section bar wheel rim, so the sheet material wheel rim obtains develop rapidly in China.The use of the product quality of sheet material wheel rim and lectotype selection, production technology, mould design and manufacturing, mold materials and trial-production and the service of producing all have relation.
Wherein, the production of sheet material wheel rim mainly contains three aspects: 1. product material; 2. processing technology; 3. equipment.The wherein product restriction of material owing to steel, China does not also produce the wheel rim special-purpose steel; Equipment aspect China has carried out technological transformation in existing tens families during the State's Eighth Five-Year Plan period, advanced equipment and part moulds of industrial equipment have been introduced, existing in recent years several device fabrication factory begins to produce wheel rim moulding special equipment, these special equipments fall behind than the automation degree of equipment of developed country, but can satisfy the needs of wheel rim moulding substantially.So want to improve the product quality of sheet material wheel rim, must on processing technology, improve.
Beam type wheel rim forming process comprises: following blank → volume circle → butt welding → scrape slag → calendering weld seam → crop → bistrique → squeeze limit → cooling → enlarging → shaped by fluid pressure → expanding → valve hole → removals valve port burr → crowded rim of taking turns.Wherein enlarging and shaped by fluid pressure are the critical processes of wheel rim moulding.
Enlarging is a procedure very important in the moulding, and according to practical production experience, rationally whether concerning of the quality of discovery wheel rim Forming Quality and enlarging amount is very close, but it is not regarded as important procedure at home and abroad in the past, thereby has influenced product quality.
Shaped by fluid pressure is the critical process in the wheel rim production technology, but because the running roller design does not now have mature theory, just experience and deduction account for eighty per cant, and theory analysis accounts for two one-tenth.The factor of experiment is a lot, and main do not have desirable wheel rim material again by on-the-spot correction in addition, influenced the raising of product quality.Produce quite difficulty of high-quality product.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of forming method of socle girder type steeliness wheel felloe, can improve the quality of product.
In order to address the above problem, the present invention is by the following technical solutions: a kind of forming method of socle girder type steeliness wheel felloe comprises blank down, and---the volume circle---------------------------------expanding---is removed valve port burr---and is squeezed the wheel rim shaped by fluid pressure bistrique crop calendering weld seam in enlarging in cooling to squeeze the limit to scrape slag in butt welding by valve hole; The enlarging amount of the enlarging mould of 15 ° of serial wheel rims is 1.07～1.13 in the described enlarging operation, and the enlarging amount of the enlarging mould of common serial wheel rim is 1.13～1.17, and the enlarging amount of the enlarging mould of DW series wheel rim is 1.15～1.25; The enlarging amount is the ratio of the mouth diameters before mouth diameters after the wheel rim enlarging and the wheel rim enlarging.
Wherein, the force analysis method is adopted in choosing of the running roller pitch diameter in the described shaped by fluid pressure operation, selects that the point of stressed maximum is a pitch diameter in the wheel rim moulding.
Also can adopt no sliding method, the choosing mid point corresponding with the strictest position of wheel rim quality requirement is pitch diameter.
Wherein, if described shaped by fluid pressure operation is post forming; When first time moulding, the radius of corner value of moulding running roller is 1.3 times of radius of corner value of its drawings marked, and when second time moulding, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
If be three moulding; When first time moulding, the radius of corner value of moulding running roller is 1.4 times of radius of corner value of its drawings marked, when second time moulding, the radius of corner value of moulding running roller is 1.2 times of radius of corner value of its drawings marked, when moulding for the third time, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
Wherein, the order of mind-set both sides moulding from the plate width is adopted in the moulding of wheel rim in proper order in the described shaped by fluid pressure operation.
Wherein, in the described shaped by fluid pressure operation, measure the gap at each position between upper and lower running roller, undesirable position, gap is remedied by placing packing ring with clearance gauge, and finally make the gap of upper roll wheel, lower roll wheel equate that everywhere described gap width is the material thickness of wheel rim.
Wherein, vacuum hardening is adopted in the heat treatment of wheel rim moulding.
The invention has the beneficial effects as follows: it has improved the quality of circular rim product greatly, and easy and simple to handle, realizes easily.
Description of drawings
Fig. 1 is the structural representation of flaring die of the present invention,
Fig. 2 is the structural representation of moulding running roller,
Among the figure: 1 upper roll wheel, 2 lower roll wheels, 3 pitch circles, 4 gaps.
The specific embodiment
The forming method of this socle girder type steeliness wheel felloe comprises blank down, and---the volume circle---------------------------------expanding---is removed the valve port burr---and is squeezed the wheel rim shaped by fluid pressure bistrique crop calendering weld seam in enlarging in cooling to squeeze the limit to scrape slag in butt welding by valve hole.
Wherein, the enlarging amount u=D1/D0 of flaring die in the enlarging operation; In the formula: D1 is the mouth diameters after the enlarging, and D0 is the mouth diameters before the enlarging, as shown in Figure 1.
The enlarging amount of the enlarging mould of 15 ° of serial wheel rims is 1.07～1.13, and the enlarging amount of the enlarging mould of common serial wheel rim is 1.13～1.17, and the enlarging amount of the enlarging mould of DW series wheel rim is 1.15～1.25.Product is big more with the thin more enlarging amount of material generally speaking, otherwise the enlarging amount is more little.Flaring die is proofreaied and correct wheel rim dismounting limit and the inconsistent effect of non-dismounting limit enlarging amount in addition.
Wherein, to determine the moulding number of times earlier before the shaped by fluid pressure.For complicated automobile inner tube-free wheel, because their apparent sizes and attenuate amount are strict, so generally adopt three moulding.For engineering machinery and big-powered tractor DW series wheel rim,, generally also adopt three moulding because of the profile more complicated.For require undemanding Agricultural vehicle wheel, rise as high as the banks, half deep trouth wheel adopts post forming.
After wheel rim moulding number of times is determined, 70% of the true percentage elongation after the total deformation that also should allow wheel rim calculate is tested less than used rim material drawn.Total deformation is decomposed among each moulding, as shown in the table:
Wheel rim moulding number of times and deflection distribution relation table
| One-shot forming | Post forming | Three moulding | |
| General wheel rim | 60％ | 40％ | - |
| The DW wheel rim | 50％ | 35％ | 15％ |
| 15 ° of DC wheel rims | 50％ | 42％ | 8％ |
Determine to determine again behind the finishing type number of times pitch diameter of running roller.On pitch circle, do not have and carry out forming materials slippingly.Grasping this point is the key that improves the wheel rim presentation quality.
Choosing of running roller pitch diameter can be adopted the force analysis method, selects that the point of stressed maximum is a pitch diameter in the wheel rim moulding.Also can adopt no sliding method, the choosing mid point corresponding with the strictest position of wheel rim quality requirement is pitch diameter.
By calculating, the point of finding the stressed maximum of most of wheel rims is just on the bcad seats of wheel rim, and the strictest position of quality requirement also is positioned at the top of bcad seats, as shown in Figure 2, therefore, pitch circle 3 diameters of moulding for the first time can be chosen on the position identical with bcad seats.The pitch diameter of moulding for the second time, three moulding is respectively than bcad seats enlarged diameter 5mm, 10mm.Also can be identical with one-shot forming running roller pitch diameter, so just guaranteed the outward appearance of wheel rim substantially.
Determining of moulding order: the order of mind-set both sides moulding from the plate width is adopted in the moulding of wheel rim in proper order in the shaped by fluid pressure operation.Because the plate both sides are free state, so this optimum stretch method of forming that is stretched as.
The selection correctness of moulding circular arc directly influences the Forming Quality of product, so should note 2 points when getting the R value: avoid sharply excessively, avoid the material slippage.Also want strict control essence to roll needed R value, to satisfy above needs at 2.Trial production also must be revised according to actual conditions.
If the shaped by fluid pressure operation is post forming; When first time moulding, the radius of corner value of moulding running roller is 1.3 times of radius of corner value of its drawings marked, and when second time moulding, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
If the shaped by fluid pressure operation is three moulding; When first time moulding, the radius of corner value of moulding running roller is 1.4 times of radius of corner value of its drawings marked, when second time moulding, the radius of corner value of moulding running roller is 1.2 times of radius of corner value of its drawings marked, when moulding for the third time, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
The correction of die clearance: the gap 4 of measuring upper roll wheel 1,2 each positions of lower roll wheel with clearance gauge, undesirable position, gap is remedied by placing packing ring, and finally make the gap of upper roll wheel, lower roll wheel equate that everywhere described gap width is the material thickness of wheel rim.
The CNC digital control system is adopted in the processing of running roller, and it is more satisfactory processing mode that vacuum hardening is adopted in heat treatment.
Claims (8)
1, a kind of forming method of socle girder type steeliness wheel felloe,---the volume circle---------------------------------expanding---is removed the valve port burr---and is squeezed the wheel rim shaped by fluid pressure bistrique crop calendering weld seam in enlarging in cooling to squeeze the limit to scrape slag in butt welding by valve hole to comprise blank down, it is characterized in that: the enlarging amount of the enlarging mould of 15 ° of serial wheel rims is 1.07～1.13 in the described enlarging operation, the enlarging amount of the enlarging mould of common serial wheel rim is 1.13～1.17, and the enlarging amount of the enlarging mould of DW series wheel rim is 1.15～1.25; The enlarging amount is the ratio of the mouth diameters before mouth diameters after the wheel rim enlarging and the wheel rim enlarging.
2, the forming method of a kind of socle girder type steeliness wheel felloe according to claim 1 is characterized in that: the force analysis method is adopted in choosing of the running roller pitch diameter in the described shaped by fluid pressure operation, selects that the point of stressed maximum is a pitch diameter in the wheel rim moulding.
3, the forming method of a kind of socle girder type steeliness wheel felloe according to claim 1, it is characterized in that: no sliding method is adopted in choosing of the running roller pitch diameter in the described shaped by fluid pressure operation, and selecting the mid point corresponding with the strictest position of wheel rim quality requirement is pitch diameter.
4, according to the forming method of claim 2 or 3 described a kind of socle girder type steeliness wheel felloes, it is characterized in that: described shaped by fluid pressure operation is post forming; When first time moulding, the radius of corner value of moulding running roller is 1.3 times of radius of corner value of its drawings marked, and when second time moulding, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
5, according to the forming method of claim 2 or 3 described a kind of socle girder type steeliness wheel felloes, it is characterized in that: described shaped by fluid pressure operation is three moulding; When first time moulding, the radius of corner value of moulding running roller is 1.4 times of radius of corner value of its drawings marked, when second time moulding, the radius of corner value of moulding running roller is 1.2 times of radius of corner value of its drawings marked, when moulding for the third time, the radius of corner value of moulding running roller equates with the radius of corner value of its drawings marked.
6, the forming method of a kind of socle girder type steeliness wheel felloe according to claim 1 is characterized in that: the order of mind-set both sides moulding from the plate width is adopted in the moulding of wheel rim in proper order in the described shaped by fluid pressure operation.
7, the forming method of a kind of socle girder type steeliness wheel felloe according to claim 1, it is characterized in that: in the described shaped by fluid pressure operation, measure the gap at each position between upper and lower running roller with clearance gauge, undesirable position, gap is remedied by placing packing ring, and finally make the gap of upper roll wheel, lower roll wheel equate that everywhere described gap width is the material thickness of wheel rim.
8, the forming method of a kind of socle girder type steeliness wheel felloe according to claim 1 is characterized in that, vacuum hardening is adopted in the heat treatment of wheel rim moulding.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200710114722XA CN100509202C (en) | 2007-11-26 | 2007-11-26 | A method for shaping socle girder type steeliness wheel felloe |
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| CNB200710114722XA CN100509202C (en) | 2007-11-26 | 2007-11-26 | A method for shaping socle girder type steeliness wheel felloe |
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| CN100509202C true CN100509202C (en) | 2009-07-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111635988A (en) * | 2020-06-12 | 2020-09-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Production method of wheel steel rim |
| CN113405430B (en) * | 2021-06-16 | 2023-05-23 | 东风汽车底盘系统有限公司 | Detection tool and detection method for fit clearance between upper roller and lower roller of rim forming roller |
| CN114654170A (en) * | 2022-03-21 | 2022-06-24 | 张家港今日精锻有限公司 | Method for forming cantilever beam type steel wheel rim |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1312176A (en) * | 2000-03-08 | 2001-09-12 | 山东济宁车轮厂 | Production process of stainless steel wheel for motor vehicle |
| CN1439537A (en) * | 2002-02-18 | 2003-09-03 | 株式会社沃克轮圈 | Wheel rim and producing method thereof |
| US20040244197A1 (en) * | 2002-02-15 | 2004-12-09 | Kenzo Takeda | Two-piece wheel and method of producing the same |
| WO2005051564A1 (en) * | 2003-11-28 | 2005-06-09 | Central Motor Wheel Co., Ltd. | Method of manufacturing full face wheel rim for steel car |
| CN1847036A (en) * | 2006-05-08 | 2006-10-18 | 嘉兴市四通车轮制造有限公司 | Making process of assembled hub-type steel wheel |
| CN101043958A (en) * | 2004-08-06 | 2007-09-26 | 丰蒂内格罗内斯私人有限公司 | Method and apparatus for manufacturing a rim bed by means of cold forming |
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2007
- 2007-11-26 CN CNB200710114722XA patent/CN100509202C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312176A (en) * | 2000-03-08 | 2001-09-12 | 山东济宁车轮厂 | Production process of stainless steel wheel for motor vehicle |
| US20040244197A1 (en) * | 2002-02-15 | 2004-12-09 | Kenzo Takeda | Two-piece wheel and method of producing the same |
| CN1439537A (en) * | 2002-02-18 | 2003-09-03 | 株式会社沃克轮圈 | Wheel rim and producing method thereof |
| WO2005051564A1 (en) * | 2003-11-28 | 2005-06-09 | Central Motor Wheel Co., Ltd. | Method of manufacturing full face wheel rim for steel car |
| CN101043958A (en) * | 2004-08-06 | 2007-09-26 | 丰蒂内格罗内斯私人有限公司 | Method and apparatus for manufacturing a rim bed by means of cold forming |
| CN1847036A (en) * | 2006-05-08 | 2006-10-18 | 嘉兴市四通车轮制造有限公司 | Making process of assembled hub-type steel wheel |
Non-Patent Citations (1)
| Title |
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| 无内胎车轮轮辋扩口模具设计. 纪莲情，甘咏梅.郑州轻工业学院学报，第14卷第2期. 1999 * |
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