CN108544191A - A kind of truck thermoforming spoke production technology - Google Patents
A kind of truck thermoforming spoke production technology Download PDFInfo
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- CN108544191A CN108544191A CN201810351412.8A CN201810351412A CN108544191A CN 108544191 A CN108544191 A CN 108544191A CN 201810351412 A CN201810351412 A CN 201810351412A CN 108544191 A CN108544191 A CN 108544191A
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- spoke
- thermoforming
- truck
- heating
- preformed member
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention provides a kind of truck thermoforming spoke production technologies, are related to spoke production technical field.The technique is first by thermoforming material machine-shaping, cure process is carried out to it again and produces thermoforming spoke, compared with prior art, the present invention is while reducing the thickness and weight of spoke, improve its intensity, make thermoforming spoke that can reach the safe application performance requirement on truck and reduce factory process consumptive material early period and later stage truck and uses oil consumption.
Description
Technical field
The present invention relates to spokes to manufacture field, more particularly to a kind of truck thermoforming spoke production technology.
Background technology
Spoke is that spoke is a component in automotive wheel, plays and is supported to wheel rim and carry out what installation coupled with axle
Effect.It is the bowl of a circular Intermediate Gray mounting hole, it is circular flat that the spoke of truck, which is commonly installed hole position,.
Currently, wheel spoke used in heavy truck and car is divided into equal thickness swaging structure and variable cross-section spinning knot
Structure.Wherein, spoke material used in wheel of truck is commonly Q235B or 380CL, the tensile strength of material be 380Mpa~
440Mpa, spoke thickness 16mm；There are also the spokes of wheel of truck to use rolled products of ordinary high-strength material, rolled products of ordinary high-strength material
Tensile strength be 490Mpa~540Mpa, spoke thickness 14mm, all be using cold pressing forming process manufacture, single-piece carry energy
Power can meet 4000kg.
It is limited by material and current production technology, the tensile strength of material therefor reaches 540Mpa, has been most high-strength
Degree；The strength of materials is improved again, and existing equipment can not be processed it, and the thickness and weight of spoke can not reduce again.
Some thermoforming materials have the characteristics that low-density, high initial strength, the light-weighted development trend of responsive motor,
Be widely used in the car body component of automobile, such as automobile B columns, suspension.
Patent No. CN201480068879.1, the method and apparatus of the spoke of entitled manufacture thermoforming, the hair
The method and apparatus that pinpoint accuracy manufacture spoke is disclosed in bright.It is referred to by the bimetal of manganese boron steel, multi-phase Steels or multilayer
The slab thermoforming of composition manufactures spoke, preferably press quenching.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of truck thermoforming spoke production technologies.
A kind of truck thermoforming spoke production technology, is the requirement according to product type and installation dimension, keeps existing production
The contour structure of product design, uses the technical process of thermoforming material processing and fabricating spoke.Specifically, select the country current
The thermoforming material of technology maturation, such as 22MnB5, initial tensile strength 400MPa~600MPa of material are processed by the technique
Tensile strength can be improved to 2~3 times of initial tensile strength afterwards, and the intensity level of raw material is selected according to the product of different size
Not, material thickness is between 6mm~8mm.The spoke of technique manufacture can be according to the requirement of wheel bearing capacity, and utilization is thinner
Material (≤8mm) processes the wheel of equality strength.
Further, the truck thermoforming spoke production technology, including：Cold forming process and thermoforming process, two
Kind technical process is the maturation process applied to different industries respectively, and the processing of spoke of vehicle wheel is applied to after being effectively combined
Manufacture；The cold forming process processes the preformed member of spoke, then by thermoforming process to preformed member hardened forming；Institute
The cold forming process stated is the production technology of existing common material spoke, is divided into and rushes disk material, rush center pre-determined bit hole, rush spiral shell
Bolt indexing pre-determined bit hole is molded, rushes five processes of air holes；Molding procedure in the cold forming process be divided into rotary press modelling and
Two kinds of drawing and forming；Specific forming method is selected according to the spoke architecture of required production.
The thermoforming process is to carry out cure process to the spoke preformed member after cold forming, is divided into heating, sizing
Hardening and laser cutting three specific processes of mounting hole.
The heating is that the preformed member of spoke is sent into heating furnace to heat, heating temperature is 850 DEG C~
950 DEG C, heating time is 5~8 minutes.
The hardening sizing is that the preformed member after heating is clamped to the shaping mould with cooling device by manipulator
In tool, Guan Bi mould, and pressure is kept, cooling cools down spoke, so that material structure is carried out martensitic transformation, is about down to
Moulding of spoke part, at this time workpiece profile hardened sizing are taken out at 400 DEG C.
The laser cutting mounting hole, is required in strict accordance with installation dimension, flat to the installation of the spoke of hardening sizing
Each mounting hole on face is cut by laser.
Production technology using the present invention selects the thermoforming spoke of 22MnB5 material manufactures, thickness that can be dropped by 14mm
As low as 7mm, directly saves material and put into 19Kg, product weight reduces 8Kg/ parts；Tensile strength can be by common product
400MPa is promoted to 1500MPa.
The beneficial effects of the invention are as follows：Thermoforming material can be applied to this multi-process workpiece product of wheel spoke；
While realizing the thickness and weight that reduce spoke, its intensity is greatly improved, the purpose of the security performance of product is increased.The work
Skill manufacture thermoforming spoke can reach the safe application performance requirement on truck and reduce early period factory process consumptive material and
Later stage truck uses oil consumption.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is thermoforming spoke flow process chart in the present invention.
Fig. 2 is the schematic diagram of cold forming process and thermoforming process in the present invention.
In figure：1. rushing disk material；2. rushing center pre-determined bit hole；3. rushing bolt indexing pre-determined bit hole；4. rotary press modelling or drawing
It is stretched into type；5. rushing air holes；6. heating；7. sizing hardening；8. being cut by laser mounting hole；Wherein 1. 2. 3. 4. 5. it is cold forming
6. 7. 8. journey is thermoforming process.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to embodiment and attached drawing
The present invention is described in further detail.Here, the exemplary embodiment and its explanation of the present invention be for explaining the present invention, but simultaneously
It is not as a limitation of the invention.Here is the description carried out to the present invention in conjunction with attached drawing：
Such as Fig. 1 thermoforming spoke flow process charts, the present invention be using ultrahigh-strength thermal forming material carry out cold forming and
The production technology that thermoforming is combined manufactures spoke.Material initial tensile strength is between 400MPa~600MPa, according to difference
The intensity rank of the product selection material of specification, material thickness is between 6mm~8mm.
Technical process：First according to the performance requirement of products of different specifications, the intensity rank and material of thermoforming raw material are selected
Expect thickness.
Then, front-end-of-line continues to adopt the production technology and equipment of existing spoke, and equipment can meet manufacture and require, will
1. thermoforming raw material are rushed disk material, 2. rush center pre-determined bit hole, 3. rush bolt indexing pre-determined bit hole, be 4. spun into successively
5. type or drawing and forming rush air holes, be processed into preformed member；Preformed member basically reaches the state of final products, only retain with
The related higher size of ratio of precision is installed and persists surplus.
After the completion of spoke is preforming, then cure process is carried out to preformed member.Above-mentioned preformed member is carried out at hardening
Reason, the thermoforming process are new processes in wheel spoke manufacture.Specifically, it 6. heats and the preformed member of spoke is sent into heating
It is heated in stove, heating temperature is 850 DEG C~950 DEG C, and heating time is 5~8 minutes, and the material of preformed member is made to be in Austria
Family name's body state；7. the preformed member after heating is clamped in the molding die with cooling device by sizing hardening by manipulator,
Guan Bi mould, and pressure is kept, cooled down with certain speed, spoke cooled down, material structure is made to carry out martensitic transformation,
After being cooled to certain temperature, moulding of spoke part, workpiece profile hardened sizing are taken out；
8. being cut by laser mounting hole according to the requirement of installation dimension, surplus is persisted to size present in preformed member, is adopted
Each mounting hole on mounting plane is cut by laser with laser cutting machine, thermoforming spoke machines.
Preferred embodiment：Thermoforming material selects 22MnB5, thickness 7mm, in cooling formation technic, successively to 22MnB5
1. raw material are rushed disk material, 2. rush center pre-determined bit hole, 3. rush bolt indexing pre-determined bit hole, rotary press modelling, 5. rush air holes
It is processed into preformed member；6. heating, then the preformed member of spoke to be sent into heating furnace and is heated, heating temperature is 900 DEG C,
Heated condition is kept, about 7 minutes, the material of preformed member is made to be in austenitic state；7. sizing hardening, then will be added by manipulator
Preformed member after heat is clamped in the molding die with cooling device, Guan Bi mould, and keeps pressure, with the drop of 30 DEG C/s
Warm speed cools down spoke, and material structure is made to carry out martensitic transformation, and moulding of spoke part is taken out when being about down to 400 DEG C,
Workpiece profile hardening sizing；8. mounting hole is cut by laser, after the completion of above two sections of processes, according to the requirement of installation dimension, to pre-
Size present in molded part persists surplus, and carrying out laser to each mounting hole on mounting plane using laser cutting machine cuts
It cuts, thermoforming spoke machines.
The thermoforming spoke of this preferred embodiment processing, thickness 7mm, product weight reduce 8Kg/ parts；Tensile strength reaches
To 1500MPa.
Claims (3)
1. a kind of truck thermoforming spoke production technology, using thermoforming material, by cold forming process and thermoforming process, system
Make the process of truck thermoforming spoke；Process the preformed member of spoke by the cold forming process, then by heat at
Type process is to preformed member hardened forming；
The cold forming process is the original processing technology of spoke, including：Disk material is rushed, center pre-determined bit hole is rushed, rushes bolt point
Degree pre-determined bit hole is molded, rushes air holes；Wherein, the molding is divided into rotary press modelling and drawing and forming；According to the wheel of required production
Spoke structure selects forming method.
2. truck thermoforming spoke production technology according to claim 1, which is characterized in that the thermoforming of the process selection
Material, initial tensile strength is between 400MPa~600MPa, and according to the product selection intensity rank of different size, material is thick
Degree is between 6mm~8mm.
3. truck thermoforming spoke production technology according to claim 1, which is characterized in that the thermoforming process,
Including：Heating, sizing hardening and laser cutting mounting hole；Wherein,
The heating is that the preformed member of spoke is sent into heating furnace to heat, and heating temperature is 850 DEG C~950 DEG C,
Heating time is 5~8 minutes；
The sizing hardening, is that the preformed member after heating is placed in the molding die with cooling device, molding is protected
Pressing and cooling down makes its hardening sizing；
The laser cutting mounting hole, is required in strict accordance with installation dimension, on the mounting plane of the spoke of hardening sizing
Each mounting hole be cut by laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351412.8A CN108544191A (en) | 2018-04-18 | 2018-04-18 | A kind of truck thermoforming spoke production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351412.8A CN108544191A (en) | 2018-04-18 | 2018-04-18 | A kind of truck thermoforming spoke production technology |
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| CN201810351412.8A Pending CN108544191A (en) | 2018-04-18 | 2018-04-18 | A kind of truck thermoforming spoke production technology |
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|---|---|---|---|---|
| CN1085472A (en) * | 1992-10-08 | 1994-04-20 | 上海工业大学 | Double-phase steel spoke for bicycle is used and manufacturing process |
| CN1721130A (en) * | 2005-06-27 | 2006-01-18 | 梁绪忠 | Hot forming process for spoke |
| CN101269456A (en) * | 2008-04-16 | 2008-09-24 | 嘉兴市四通车轮制造有限公司 | Process for manufacturing steel spoke |
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| CN1085472A (en) * | 1992-10-08 | 1994-04-20 | 上海工业大学 | Double-phase steel spoke for bicycle is used and manufacturing process |
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| CN101821414A (en) * | 2007-06-19 | 2010-09-01 | 昆士兰铁路有限公司 | Treatment of railway wheels |
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| CN104551553A (en) * | 2014-11-25 | 2015-04-29 | 浙江金固股份有限公司 | Internal-upset stamped and hardened wheel and manufacturing method thereof |
| CN204354718U (en) * | 2014-11-25 | 2015-05-27 | 浙江金固股份有限公司 | Interior thickening formula punching press sclerosis wheel |
| CN104772386A (en) * | 2015-03-17 | 2015-07-15 | 浙江金固股份有限公司 | Machining method for spoke of wheel |
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Application publication date: 20180918 |