CN104588503A - Die for spinning and casting aluminum alloy wheel - Google Patents

Die for spinning and casting aluminum alloy wheel Download PDF

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Publication number
CN104588503A
CN104588503A CN201510016559.8A CN201510016559A CN104588503A CN 104588503 A CN104588503 A CN 104588503A CN 201510016559 A CN201510016559 A CN 201510016559A CN 104588503 A CN104588503 A CN 104588503A
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CN
China
Prior art keywords
spinning
counterdie
wheel
aluminum alloy
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510016559.8A
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Chinese (zh)
Inventor
常海平
翁涛
张金
许大维
李�瑞
于德美
王永宁
朱志华
李昌海
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CITIC Dicastal Co Ltd
Original Assignee
CITIC Dicastal Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CITIC Dicastal Co Ltd filed Critical CITIC Dicastal Co Ltd
Priority to CN201510016559.8A priority Critical patent/CN104588503A/en
Publication of CN104588503A publication Critical patent/CN104588503A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14Spinning

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention relates to a lower die of a die for spinning and casting an aluminum alloy wheel. The lower die is characterized in that the lower die further comprises a platform which is arranged below a die position corresponding to the wheel rim. The lower die is additionally provided with the platform, so that the problem that thermal processing on a blank is influenced due to unevenness of the back end surface of the wheel after being spun and cast is prevented.

Description

A kind of mould for spinning cast aluminum alloy wheel
Technical field
The present invention relates to spinning casting field, relate in particular to a kind of cast aluminum alloy wheel spinning mold.
Background technology
Wheel hub, as one of vitals in running car system, not only carries the weight of automobile, also embodies the appearance and modeling of automobile simultaneously.Casting rotary extrusion aluminum alloy wheel (being called for short " wheel is revolved in casting ") is that spoke adopts low-pressure casting process, and wheel rim adopts a kind of aluminum-alloy wheel of shear spinning technological forming.Low pressure casting can meet outward appearance demand, and wheel rim is shaped through hot spinning, has obvious fibre flow organizationally, substantially increases bulk strength and the corrosion resistance of wheel.Because the strength of materials is high, product weight light, thus the service life of wheel and security are significantly improved, be conducive to vehicle loss of weight, fuel-economizing.
The strong lathe turner's skill of wheel rim belongs to flow turning, according to its deformation extent, some passages deformation process are divided into carry out, namely multiple spinning roller carries out matched motion according to certain mistake distance, whether suitable the selection of rotary pressure process parameter is, will directly have influence on the quality of Forming Workpiece, selects improper meeting that spinning process can not be stablized and carry out, in spinning process, blank is most important with coordinating of mould.
In current production technology, the mould of spinning cast aluminum alloy wheel has following shortcoming:
(1) adopt the blank centre bore after band sealing spinning can not machined, cause blank center can not binder, after spinning, the corresponding meeting of the size of blank changes, the yield rate that the machine of have impact on adds.
(2) in order to save cost, improve working (machining) efficiency, existing spinning processing method is direct spinning after die-casting blank rolls off the production line, blank adopts sealing to locate with coordinating of spinning mold, wheel well place adopts the outer swollen type design of loose piece, ensures that the same a blank of different mould is all fitted with mould, but the method for attachment of guide pad in existing mold design and spinning counterdie result in guide pad installs and there is deviation, be unfavorable for the smooth swollen type of loose piece, guide pad dismounting is inconvenient.
(3) utilize heating rod to heat existing mold, the structure of current this mould makes the length of heating rod can not be oversize, thus causes the efficiency of heating surface to decline, and have impact on spinning beat.
(4) wheel spinning rear end face is uneven, affects the heat treatment of blank.
Summary of the invention
The object of the invention is to provide a kind of lower mould for spinning cast aluminum alloy wheel, thus overcome the one or more of above shortcoming.
The invention provides following technical scheme:
In one aspect of the invention, provide a kind of lower mould for spinning cast aluminum alloy wheel, it is characterized in that, described counterdie also comprises platform below the die location corresponding to the edge of rim.
In the present invention one is preferred, described platform is 1-5 centimeters below the die location corresponding to the edge of rim.Further preferably, described platform is 2-3 centimeters below the die location corresponding to the edge of rim.
In the present invention one is preferred, the width of described platform is 1-6 centimetre.Further preferably, the width of described platform is 2-4 centimetre.
In another aspect of the present invention, provide a kind of lower mould for spinning cast aluminum alloy wheel, described counterdie comprises backing plate 25 at wheel well place, guide pad 26 and loose piece 27, and backing plate 25 is fixed to bed die 21 by bolt 24, guide pad 26 is fixed to backing plate 25 by bolt 212.
In the present invention one is preferred, the gap between loose piece 27 and guide pad 26 is 0.5-2mm; Preferably, gap is 1mm.
In another aspect of the present invention, provide a kind of lower mould for spinning cast aluminum alloy wheel, described counterdie comprises Induction heater, and does not comprise heating rod.
Of the present invention one preferred in, counterdie comprises counterdie ejector 28, and is connected by bolt 23 between counterdie ejector 28 with counterdie main body 21.
In another aspect of the present invention, provide a kind of upper mould for spinning cast aluminum alloy wheel, described patrix comprises stripping attachment 211, and described stripping attachment 211 is positioned at the one side of patrix median plane to foundry goods, and is connected by disc spring 29 between stripping attachment 211 with upper mould body 210.
In the present invention one is preferred, be also bolted between described stripping attachment 211 and upper mould body 210.
In the present invention one is preferred, described stripping attachment 211 is that inverted wedge shape rotates the endless member formed around upper mould body central shaft.
In other aspects of the present invention, described patrix ejector, disc spring can make standard component, exchange and use between the mould of different wheel-type.
In one aspect of the invention, counterdie increases platform, prevents wheel spinning rear end face uneven, affects the heat treatment of blank.
In one aspect of the invention, by changing the connected mode of guide pad and new counterdie, increasing backing plate, have adjusted itself and the fit clearance of loose piece, making loose piece be more prone to installation and locate and smooth swollen type.
In one aspect of the invention, by changing the connected mode of guide pad and new counterdie, backing plate is increased, effectively can solve the effective swollen type of slide block, solve the problem that blank internal diameter is inconsistent, avoid supination blank dimension to change, also alleviate mould to the rigid shock of wheel simultaneously.
In one aspect of the invention, by removing counterdie heating rod, reducing the Mould Machining time, improve production efficiency.
In one aspect of the invention, patrix increases stripping attachment and spring, when ensureing blank dimension, also alleviate the rigid shock of mould to wheel; New counterdie ejector increases caging bolt, prevents it can not return smoothly.
In one aspect of the invention, increase stripping attachment and be connected with patrix bolt, increase disc spring between them simultaneously, avoid blank dimension to change.
Spinning mold of the present invention also has that structure is simple, easy to make, precision high.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
Fig. 1: the schematic diagram of spinning casting mould of the prior art, in figure: 11-counterdie, 12-heating rod Connecting line joint, 13-heating rod, 14-guide pad, 15-bolt, 16-loose piece, 17-counterdie ejector;
Fig. 2: spinning mold general assembly schematic diagram of the present invention, in figure: 21-counterdie, 22-counterdie platform, 23-bolt, 24-bolt, 25-backing plate, 26-guide pad, 27-loose piece, 28-counterdie ejector, 29-disc spring, 210-patrix, 211-stripping attachment.
Detailed description of the invention
Embodiment 1
For a lower mould for spinning cast aluminum alloy wheel, described counterdie also comprises platform below the die location corresponding to the edge of rim.The processing of counterdie platform is carried out according to the parameter shown in table 1:
Table 1: the lower mould platform machined parameters of spinning cast aluminum alloy wheel
Test proves, sees corresponding to also comprising platform below the die location of the edge of rim at counterdie, prevents wheel spinning rear end face uneven, affects the heat treatment of blank.Test in pilot production line and show, and do not add compared with platform, the percent defective that group 1-4 all makes end face injustice cause reduces more than 65%, brings unexpected outstanding effect.Wherein, organize 2 percent defectives that end face injustice is caused and reduce 83%.
Embodiment 2
For a lower mould for spinning cast aluminum alloy wheel, this counterdie comprises backing plate 25 at wheel well place, guide pad 26 and loose piece 27, and backing plate 25 is fixed to bed die 21 by bolt 24, and guide pad 26 is fixed to backing plate 25 by bolt 212.
The processing of counterdie is carried out according to the parameter shown in table 2:
Table 2: the lower mould platform machined parameters of spinning cast aluminum alloy wheel
Group number Gap/millimeter between loose piece 27 and guide pad 26
5 0.5
6 1
7 2
Test in pilot production line and show, the connected mode of block and new counterdie, increase backing plate, have adjusted its fit clearance with loose piece, make loose piece be more prone to install and locate and smooth swollen type.By changing the connected mode of guide pad and new counterdie, increasing backing plate, effectively can solve the effective swollen type of slide block, solve the problem that blank internal diameter is inconsistent, avoid supination blank dimension to change, also alleviate mould to the rigid shock of wheel simultaneously.
Embodiment 3
For a lower mould for spinning cast aluminum alloy wheel, described counterdie comprises Induction heater, and does not comprise heating rod.Meanwhile also comprise counterdie ejector 28 at counterdie, and be connected by bolt 23 between counterdie ejector 28 with counterdie main body 21.
Test in pilot production line and show, by removing counterdie heating rod, reducing the Mould Machining time, improve production efficiency.Compared with original counterdie production time, after changing Induction heater into, make Mould Machining time decreased 27%, significantly improve operating efficiency.
Meanwhile, induction type mode of heating overcomes original heating rod and heats uneven phenomenon.When the counterdie that pilot production line adopts induction type mode of heating to carry out heating is produced, make the flaw number of packages amount of wheel have dropped 25.2%, bring great economic benefit and social benefit.
New counterdie ejector increases caging bolt, prevents it can not return smoothly, greatly reduces the situation of counterdie locking, ensure that the smooth of production carries out continuously.
Embodiment 4:
For a upper mould for spinning cast aluminum alloy wheel, described patrix comprises stripping attachment 211, and described stripping attachment 211 is positioned at the one side of patrix median plane to foundry goods, and is connected by disc spring 29 between stripping attachment 211 with upper mould body 210.Also be bolted between described stripping attachment 211 and upper mould body 210.Described stripping attachment 211 is that inverted wedge shape rotates the endless member formed around upper mould body central shaft, as shown in Figure 2.
Test in pilot production line and show, patrix increases stripping attachment and spring, also alleviate the rigid shock of mould to wheel when ensureing blank dimension, make because mould impacts the wheel surface damage caused to wheel rate, and then the probability causing wheel to be scrapped declines greatly.
Increase stripping attachment to be connected with patrix bolt, increase disc spring between them simultaneously, avoid blank dimension to change.Scale up test proves, new patrix can adapt to the different blank of size, improves the applicability of patrix, and the universality being conducive to mould uses and reduces die manufacturing cost.
Embodiment 5
For a lower mould for spinning cast aluminum alloy wheel, described counterdie also comprises platform below the die location corresponding to the edge of rim, processes according to the data of table 1 group 2.Counterdie comprises backing plate 25 at wheel well place, guide pad 26 and loose piece 27, and backing plate 25 is fixed to bed die 21 by bolt 24, and guide pad 26 is fixed to backing plate 25 by bolt 212, processes according to the data of table 2 group 6.Counterdie comprises Induction heater, and does not comprise heating rod.Meanwhile also comprise counterdie ejector 28 at counterdie, and be connected by bolt 23 between counterdie ejector 28 with counterdie main body 21.Patrix comprises stripping attachment 211, and described stripping attachment 211 is positioned at the one side of patrix median plane to foundry goods, and is connected by disc spring 29 between stripping attachment 211 with upper mould body 210.Also be bolted between described stripping attachment 211 and upper mould body 210.
Above-mentioned mould is used for pilot production line test, test shows, the percent defective that end face injustice causes reduces 79%; The connected mode of block and new counterdie, increases backing plate, have adjusted its fit clearance with loose piece, makes loose piece be more prone to install and locate and smooth swollen type; The flaw number of packages amount of wheel and counterdie mating surface have dropped 31%.Because mould impacts the wheel surface damage caused to wheel rate, and then the probability causing wheel to be scrapped declines greatly.
The design of spinning mold of the present invention, is not limited to the content described in content of the present invention and detailed description of the invention, inspires and other connected modes of acquisition, all fall into protection scope of the present invention according to content of the present invention.

Claims (5)

1. for a lower mould for spinning cast aluminum alloy wheel, it is characterized in that, described counterdie also comprises platform below the die location corresponding to the edge of rim.
2. lower mould according to claim 1, is characterized in that, described platform is 1-5 centimeters below the die location corresponding to the edge of rim.
3. the lower mould described in claim 1 or 2, is characterized in that, described platform is 2-3 centimeters below the die location corresponding to the edge of rim.
4. the lower mould described in claim 1 or 2, is characterized in that, the width of described platform is 1-6 centimetre.
5. the lower mould described in claim 1 or 2, is characterized in that, the width of described platform is 2-4 centimetre.
CN201510016559.8A 2015-01-14 2015-01-14 Die for spinning and casting aluminum alloy wheel Pending CN104588503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510016559.8A CN104588503A (en) 2015-01-14 2015-01-14 Die for spinning and casting aluminum alloy wheel

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105478618A (en) * 2015-12-10 2016-04-13 福建申利卡铝业发展有限公司 Machining process of spinning rim
CN106424406A (en) * 2016-12-26 2017-02-22 安庆迪力机械铸造有限公司 Heating spinning flaring device
CN106825232A (en) * 2016-11-25 2017-06-13 天津那诺机械制造有限公司 The mould and its method of work of a kind of direct rotary press modelling of cast aluminium alloy gold wheel hub blank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509755A (en) * 1967-09-13 1970-05-05 Firestone Tire & Rubber Co Method and apparatus for producing vehicle rims
JPH05115935A (en) * 1991-10-25 1993-05-14 Reizu Eng:Kk Manufacture of wheel rim
CN202606738U (en) * 2012-06-29 2012-12-19 宁波宝通轮业有限公司 Adjustable aluminum alloy wheel hub rear sheet spinning die
CN203265507U (en) * 2013-05-09 2013-11-06 浙江戴卡宏鑫科技有限公司 Bi-directional spinning mould for forging loader wheel
CN103464609A (en) * 2013-09-28 2013-12-25 中信戴卡股份有限公司 Improved vehicle wheel spinning mould

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509755A (en) * 1967-09-13 1970-05-05 Firestone Tire & Rubber Co Method and apparatus for producing vehicle rims
JPH05115935A (en) * 1991-10-25 1993-05-14 Reizu Eng:Kk Manufacture of wheel rim
CN202606738U (en) * 2012-06-29 2012-12-19 宁波宝通轮业有限公司 Adjustable aluminum alloy wheel hub rear sheet spinning die
CN203265507U (en) * 2013-05-09 2013-11-06 浙江戴卡宏鑫科技有限公司 Bi-directional spinning mould for forging loader wheel
CN103464609A (en) * 2013-09-28 2013-12-25 中信戴卡股份有限公司 Improved vehicle wheel spinning mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105478618A (en) * 2015-12-10 2016-04-13 福建申利卡铝业发展有限公司 Machining process of spinning rim
CN106825232A (en) * 2016-11-25 2017-06-13 天津那诺机械制造有限公司 The mould and its method of work of a kind of direct rotary press modelling of cast aluminium alloy gold wheel hub blank
CN106424406A (en) * 2016-12-26 2017-02-22 安庆迪力机械铸造有限公司 Heating spinning flaring device

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