CN105081040A - Machining method for rim blank for spinning rim - Google Patents
Machining method for rim blank for spinning rim Download PDFInfo
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- CN105081040A CN105081040A CN201410520595.3A CN201410520595A CN105081040A CN 105081040 A CN105081040 A CN 105081040A CN 201410520595 A CN201410520595 A CN 201410520595A CN 105081040 A CN105081040 A CN 105081040A
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Abstract
The invention relates to a machining method for a rim blank for spinning rim. The machining method is used for conducting segmented spinning machining on the flaring rim blank, wherein the middle of the rim blank is a flat bottom, and the two sides of the rim blank extend obliquely. The method includes the steps that firstly, the EF segment is rolled to form positioning protrusions, and the positioning protrusions are used for positioning a workpiece; secondly, the AB segment is spun to be thinned; and thirdly, the CD segment is spun to be thinned, the width of the workpiece is widened while spinning is conducted, and the increased maximum width is 40 mm. By means of the manner, spinning force is smaller, energy is greatly reduced, and abrasion on a die is smaller; the molding quality can be effectively improved, and stability after forming is further enhanced; and in addition, the quality qualification rate is also increased, the production takt is faster, and the production efficiency is higher.
Description
Technical field
The present invention relates to a kind of auto parts and components processing technology, especially relate to a kind of spinning wheel rim wheel rim blank processing method.
Background technology
For solving existing automobile rim heavier-weight, car resistance insufficient strength that is large and automobile rim holds yielding deficiency, coordinate the problem of wheel rim intensity and weight, present inventors have proposed " automobile rim and spinning process thereof " (publication No. CNl03448466A) by name, it comprises cover tire ring support, inner tube of a tyre ring support, be arranged on the kerve between inner tube of a tyre ring support and cover tire ring support, be connected to the outer rim of cover tire ring support end, be connected to the inner side wheel rim of inner tube of a tyre ring support end, cover tire ring support and inner tube of a tyre ring support are respectively equipped with outward turning nip and inward turning nip, outward turning nip extends to the link position of cover tire ring support and kerve from the link position of cover tire ring support and outer rim, inward turning nip extends to the link position of inner tube of a tyre ring support and kerve from the link position of inner tube of a tyre ring support and inner side wheel rim, and propose the technique of three one-step formings.Structure shown in the disclosure technology reduces rim weight, reduces car resistance, reduces oil consumption, and the intensity of wheel rim is well not yielding; Its spinning process is suitable for the cold forming race pressure of wheel rim, and spinning process is simple.But still there are some areas for improvement: the quickening of productive temp, the increase etc. of production efficiency, and the enhancing of forming stability.
Summary of the invention
Main purpose of the present invention is to provide a kind of higher, spinning wheel rim wheel rim blank processing method that forming stability is stronger of very fast, production efficiency of productive temp.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of spinning wheel rim wheel rim blank processing method, is characterized in that: be that the wheel rim blank of the enlarging shape of flat, the oblique extension in both sides carries out segmentation rotary pressing processing to middle part; First EF section is rolled into positioning convex, with this positioning convex, workpiece is positioned; Then spinning AB section is carried out thinning, then spinning CD section is carried out thinning, and while spinning, the width of the workpiece broadens, and the most length and width degree of increase is 40mm.This mode, spinning force is less, saves the wearing and tearing of the energy to mould greatly less; Effectively can improve Forming Quality, and make shaping after stability strengthen further; In addition, also improve up-to-standard rate, thus make that productive temp is faster, production efficiency is higher.
As preferably, the Reducing thickness of AB and CD section is at 25%-50%.To meet under the prerequisite of requirement of strength externally bcad seats and inner bead seat to put and carry out thinning, effectively reduce rim weight, reduce car resistance, reduce oil consumption.
The two ends of positioning convex correspond respectively to the two ends of wheel rim kerve.Both be easy to location, be convenient to again the rotary pressing processing that spinning AB section, spinning CD section are follow-up, and the processing of kerve; And make shaping after structural stability better.
After completing foregoing sequence, as preferably, spinning forms cover tire ring support, inner tube of a tyre ring support, base, outer rim, inner side wheel rim, convex peak, outside, convex peak, inner side.As last portion of three steps, by shaping for the kerve at base substrate both sides and middle part, be convenient to control shaping after precision.
As preferably, in the both sides of the spinning district Y of AB section, CD section, arrange spinning and non-spinning transitional region X, spinning and non-spinning transitional region X are arc.Not easily there is stress and concentrate in arc-shaped transition.
Therefore, the present invention has the beneficial effect that productive temp is very fast, production efficiency is higher, forming stability is stronger.
Accompanying drawing explanation
Accompanying drawing 1 is process chart of the present invention.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: a kind of spinning wheel rim of the present invention wheel rim blank processing method as shown in Figure 1, is that the wheel rim blank 11 of the enlarging shape of flat, the oblique extension in both sides carries out segmentation rotary pressing processing to middle part; First EF section is rolled into positioning convex 10, positions with this positioning convex 10 pairs of workpiece; Then spinning AB section is carried out thinning, then spinning CD section is carried out thinning, and while spinning, the width of the workpiece broadens, and the most length and width degree of increase is 40mm.Spinning forms cover tire ring support 1, inner tube of a tyre ring support 2, base 3, outer rim 4, inner side wheel rim 5, convex peak, outside 8, convex peak 9, inner side.
The Reducing thickness of AB and CD section is at 25%-50%.Reducing thickness refers to the ratio of thickness and the original thickness deducted.
Positioning convex 10 direction of arching upward is contrary with the enlarging direction of base substrate, and its two ends correspond respectively to the two ends of wheel rim kerve 3.
In the both sides of the spinning district Y of AB section, CD section, arrange spinning and non-spinning transitional region X, spinning and non-spinning transitional region X are arc.
When practical operation, step is as follows: the wheel rim blank of first step clamping on race's press is tubular structure, the thick mid portion of two end portions is thin, wheel rim two ends are round table-like structure, two rotation mandrels insert in wheel rim as the two ends of wheel rim spinning mold from wheel rim, until wheel copper axial width control device is fitted with the end of wheel copper.Second step is not carry out spinning to spinning district at once when carrying out spinning to wheel rim, but first roll out positioning convex in the centre position near wheel rim by spinning wheel, wheel rim thickness after the roll extrusion of roll extrusion position is constant, positioning convex connects spacing in rotation mandrel, outward turning nip hour wheel rim on the left of spinning wheel rim only can extend to the left and can not extend to the right, and the inward turning nip hour wheel rim on the right side of spinning wheel rim only can extend to the right and can not extend to the left.In the process of wheel rim spinning, positioning convex plays the effect of location, ensures wheel rim spinning position accurately and reliably.Wheel rim is only that the outer surface of bcad seats and inner tube of a tyre ring support has outside carried out thinning spinning, and does not carry out thinning spinning in other positions, and for overall spinning, operating efficiency is high.And the thick mid portion of two end portions is thin, wheel rim two ends are round table-like structure, and relative to the wheel rim of pure cylinder-like structure, spinning speed is fast, and the rotary press modelling power of needs is little.
Workpiece carries out spinning after enlarging, is a kind of conical forward spinning process, has following advantage: spinning force is less than the reverse spinning of traditional cylinder type, save the wearing and tearing of the energy to mould greatly less; Productive temp is more, and production efficiency is higher; The requirement of lubrication is reduced greatly than cylinder type spinning.
Claims (5)
1. a spinning wheel rim wheel rim blank processing method, is characterized in that: be that the wheel rim blank (11) of the enlarging shape of flat, the oblique extension in both sides carries out segmentation rotary pressing processing to middle part; First EF section is rolled into positioning convex (10), with this positioning convex (10), workpiece is positioned; Then spinning AB section is carried out thinning, then spinning CD section is carried out thinning, and while spinning, the width of the workpiece broadens, and the most length and width degree of increase is 40mm.
2. a kind of spinning wheel rim wheel rim blank processing method according to claim 1, is characterized in that: the Reducing thickness of AB and CD section is at 25%-50%.
3. a kind of spinning wheel rim wheel rim blank processing method according to claim 1, is characterized in that: the two ends of positioning convex (10) correspond respectively to the two ends of wheel rim kerve (3).
4. a kind of spinning wheel rim wheel rim blank processing method according to claim 1 or 2 or 3, is characterized in that: spinning forms cover tire ring support (1), inner tube of a tyre ring support (2), base (3), outer rim (4), inner side wheel rim (5), convex peak, outside (8), convex peak, inner side (9).
5. a kind of spinning wheel rim wheel rim blank processing method according to claim 4, it is characterized in that: in the both sides of the spinning district Y of AB section, CD section, arrange spinning and non-spinning transitional region X, spinning and non-spinning transitional region X are arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520595.3A CN105081040A (en) | 2014-09-30 | 2014-09-30 | Machining method for rim blank for spinning rim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520595.3A CN105081040A (en) | 2014-09-30 | 2014-09-30 | Machining method for rim blank for spinning rim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105081040A true CN105081040A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410520595.3A Pending CN105081040A (en) | 2014-09-30 | 2014-09-30 | Machining method for rim blank for spinning rim |
Country Status (1)
| Country | Link |
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| CN (1) | CN105081040A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096820A (en) * | 2016-08-12 | 2017-08-29 | 鼎镁（昆山）新材料科技有限公司 | Wheel rim spinning manufacture method |
| CN107244187A (en) * | 2017-06-29 | 2017-10-13 | 浙江跃岭股份有限公司 | Bilateral spinning aluminium alloy wheel hub |
| CN107695617A (en) * | 2017-08-22 | 2018-02-16 | 安徽汇泰车轮有限公司 | A kind of steel rim manufacture method |
| CN108356125A (en) * | 2017-12-29 | 2018-08-03 | 浙江金固股份有限公司 | Wheel, wheel rim rotation rolling process and spinning apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11208205A (en) * | 1998-01-30 | 1999-08-03 | Topy Ind Ltd | Wheel with reinforcement rib and manufacture thereof |
| JP2003275837A (en) * | 2002-03-22 | 2003-09-30 | Chuo Motor Wheel Co Ltd | Method for manufacturing wheel rim of car |
| CN101856946A (en) * | 2009-04-12 | 2010-10-13 | 赖建辉 | Tubeless unequal-thickness and variable-section rim for automobile wheel |
| CN102649210A (en) * | 2011-02-24 | 2012-08-29 | 宝山钢铁股份有限公司 | Manufacturing method additionally provided with spinning working procedure for light-weight wheel rim |
| CN103448466A (en) * | 2013-06-08 | 2013-12-18 | 浙江金固股份有限公司 | Car rim and spinning process thereof |
| CN203556734U (en) * | 2013-10-31 | 2014-04-23 | 刘湘平 | Special die of rim spinning device |
-
2014
- 2014-09-30 CN CN201410520595.3A patent/CN105081040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11208205A (en) * | 1998-01-30 | 1999-08-03 | Topy Ind Ltd | Wheel with reinforcement rib and manufacture thereof |
| JP2003275837A (en) * | 2002-03-22 | 2003-09-30 | Chuo Motor Wheel Co Ltd | Method for manufacturing wheel rim of car |
| CN101856946A (en) * | 2009-04-12 | 2010-10-13 | 赖建辉 | Tubeless unequal-thickness and variable-section rim for automobile wheel |
| CN102649210A (en) * | 2011-02-24 | 2012-08-29 | 宝山钢铁股份有限公司 | Manufacturing method additionally provided with spinning working procedure for light-weight wheel rim |
| CN103448466A (en) * | 2013-06-08 | 2013-12-18 | 浙江金固股份有限公司 | Car rim and spinning process thereof |
| CN203556734U (en) * | 2013-10-31 | 2014-04-23 | 刘湘平 | Special die of rim spinning device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096820A (en) * | 2016-08-12 | 2017-08-29 | 鼎镁（昆山）新材料科技有限公司 | Wheel rim spinning manufacture method |
| CN107244187A (en) * | 2017-06-29 | 2017-10-13 | 浙江跃岭股份有限公司 | Bilateral spinning aluminium alloy wheel hub |
| CN107695617A (en) * | 2017-08-22 | 2018-02-16 | 安徽汇泰车轮有限公司 | A kind of steel rim manufacture method |
| CN108356125A (en) * | 2017-12-29 | 2018-08-03 | 浙江金固股份有限公司 | Wheel, wheel rim rotation rolling process and spinning apparatus |
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Application publication date: 20151125 |
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