CN109604947B - High-precision streamline luggage rack section bar and production process thereof - Google Patents
High-precision streamline luggage rack section bar and production process thereof Download PDFInfo
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- CN109604947B CN109604947B CN201811470577.3A CN201811470577A CN109604947B CN 109604947 B CN109604947 B CN 109604947B CN 201811470577 A CN201811470577 A CN 201811470577A CN 109604947 B CN109604947 B CN 109604947B
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R9/00—Supplementary fittings on vehicle exterior for carrying loads, e.g. luggage, sports gear or the like
- B60R9/04—Carriers associated with vehicle roof
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Abstract
The invention relates to a high-precision streamline luggage rack section bar and a production process thereof, which comprises a luggage rack section bar body, wherein two ends of the luggage rack section bar body are respectively provided with a left mounting part and a right mounting part which are symmetrical, a middle transverse section is arranged between the left mounting part and the right mounting part, and the left mounting part and the right mounting part are bent inwards; the inner sides of the left mounting part and the right mounting part are respectively provided with a tangent plane; the production process comprises the following steps: aluminum extrusion, bending, double-head sawing, CNC milling, surface machine polishing, surface hand polishing and surface oxidation. The method meets the requirements of high-precision wear resistance and corrosion resistance of the surface of the luggage rack in the market, is beautiful and smooth, performs multiple treatments on the surface of the product in the production process, improves the yield, adds an electropolishing step in the surface oxidation process of the product, performs heat sealing after cold sealing, improves the surface precision of the product, and improves the wear resistance and corrosion resistance of the product.
Description
Technical Field
The invention relates to the technical field of automobile luggage racks, in particular to a high-precision streamline luggage rack section and a production process thereof.
Background
With the advance of science and technology in modern society, the development of the automobile industry is more and more rapid, particularly in the aspect of automobile accessories, people pay more attention to detailed design and attractiveness, and a roof rack is one of the automobile accessories.
At present, automobile luggage rack aluminium alloy surface quality is poor, easily kick-backs in the market, can not satisfy the requirement of car to the high accuracy aluminium alloy, and many SUV cars need the decorative function of roof luggage rack, so more and more attach attention to automobile luggage rack's aesthetic measure.
Along with the continuous change and promotion of the market demand for the luggage rack, the demand is higher and higher on the production process of the aluminum profile of the luggage rack.
Disclosure of Invention
The invention aims to overcome the defects and provides a high-precision streamline luggage rack section and a production process thereof, and the high-precision streamline luggage rack section is high in precision, wear-resistant and corrosion-resistant.
The purpose of the invention is realized as follows:
a high-precision streamline luggage rack section comprises a luggage rack section body, wherein two ends of the luggage rack section body are respectively provided with a left mounting part and a right mounting part which are symmetrical, a middle transverse section is arranged between the left mounting part and the right mounting part, and the left mounting part and the right mounting part are bent inwards; the inboard of left side installation department and right installation department respectively is equipped with a tangent plane.
A high-precision streamline luggage rack section is characterized in that a left mounting part and a right mounting part are bent by 30-40 degrees.
The utility model provides a streamlined luggage rack section bar of high accuracy, the junction of well horizontal section and left installation department and right installation department respectively is equipped with a plurality of mounting holes.
A production process of a high-precision streamline luggage rack section bar comprises the following steps:
the first step, aluminum extrusion, is carried out,
preparing before production, heating a die, a cast rod and a charging barrel, and extruding on an extruder set;
then, performing air cooling or water mist quenching, then performing process self-checking after interruption, then performing traction and straightening, and then performing process self-checking again;
then, cutting to length, then, performing self-inspection of the process again, framing, and finally, performing artificial aging;
in the second step, the bending is carried out,
putting the die into a die to adjust a curved surface arc module and a positioning rotary hole under the condition of protecting the surface of a product;
thirdly, double-head saw cutting is carried out,
placing the bent section into sawing equipment for double-head sawing, wherein the sawing angle can be adjusted at will;
fourthly, milling and cutting the blank by CNC,
placing the double-head sawed section into a numerical control milling machine for CNC milling;
fifthly, the surface is polished by a surface machine,
putting the milled section into a polishing machine for surface machine polishing;
sixthly, manually polishing the surface,
manually polishing the mechanically polished section, and refining the fine defects after mechanically polishing;
the seventh step, surface oxidation,
carrying out surface oxidation on the profile after hand polishing, wherein the process of surface oxidation comprises the following steps: oxidizing and hanging, degreasing, rinsing, electropolishing, rinsing, removing a film, rinsing, removing ash, rinsing, anodizing, rinsing, cold sealing, rinsing, heat sealing, rinsing, drying, oxidizing and hanging, inspecting and packaging, and warehousing finished products.
A production process of a high-precision streamline luggage rack section bar is characterized in that in the aluminum extrusion step, the temperature of a die is heated to 460 ℃, and the temperature is kept for 3.5 hours; heating the cast rod to 505 ℃, and keeping the temperature for 3 hours; heating the extrusion cylinder to 400 ℃, and keeping the temperature for 4.5 hours, wherein the extrusion speed is 0.1-0.15m/s during extrusion.
A production process of a high-precision streamline luggage rack section is characterized in that in the aluminum extrusion step, the temperature is kept at 175-185 ℃ for 6 hours during artificial aging.
A production process of a high-precision streamline luggage rack section is characterized in that a polishing machine in the surface machine polishing step is provided with two insertion cores, two ends of each insertion core are provided with 360-degree rotating devices, and each surface of the luggage rack section is polished in the machine polishing process.
Compared with the prior art, the invention has the beneficial effects that:
the high-precision streamline luggage rack section bar meets the requirements of high-precision wear resistance and corrosion resistance of the surface of a luggage rack in the market, is attractive and smooth, performs multiple treatments on the surface polishing of a product in a production process, improves the yield, adds an electropolishing step in the surface oxidation process of the product, performs heat sealing after cold sealing, improves the surface precision of the product, and improves the wear resistance and corrosion resistance of the product.
Drawings
Fig. 1 is a schematic structural diagram of a high-precision streamline luggage rack profile of the invention.
Wherein: left installation portion 1, middle horizontal section 2, right installation portion 3.
Detailed Description
Example 1:
referring to fig. 1, the invention relates to a high-precision streamline luggage rack section bar, which comprises a luggage rack section bar body, wherein two ends of the luggage rack section bar body are respectively provided with a left mounting part 1 and a right mounting part 3 which are symmetrical, a middle transverse section 2 is arranged between the left mounting part 1 and the right mounting part 3, and the left mounting part 1 and the right mounting part 3 are bent inwards by 30-40 degrees;
the inner sides of the left mounting part 1 and the right mounting part 3 are respectively provided with a tangent plane;
the junction of the middle transverse section 2 and the left installation part 1 and the right installation part 3 is respectively provided with a plurality of installation holes.
The invention relates to a production process of a high-precision streamline luggage rack section bar, which comprises the following steps:
the first step, aluminum extrusion, is carried out,
preparing before production, heating the mould to 460 ℃, and preserving heat for 3.5 hours; heating the cast rod to 505 ℃, and keeping the temperature for 3 hours; heating the extrusion cylinder to 400 ℃, preserving heat for 4.5 hours, and then extruding on an extruder set, wherein the extrusion speed is 0.1-0.15m/s during extrusion;
then, performing air cooling or water mist quenching, then performing process self-checking after interruption, then performing traction and straightening, and then performing process self-checking again;
and then, carrying out fixed-length sawing, then, carrying out self-inspection in the process again, then, framing, standing for 48 hours in a natural environment, and naturally aging to 4-5HW, and then, bending.
In the second step, the bending is carried out,
putting the die into a die to adjust a curved surface arc module and a positioning rotary hole under the condition of protecting the surface of a product;
thirdly, artificial aging
Artificially aging the bent section at 175-185 ℃ for 6 hours;
fourthly, double-head saw cutting is carried out,
placing the bent section into sawing equipment for double-head sawing, wherein the sawing angle can be adjusted at will;
the fifth step, CNC milling,
placing the double-head sawed section into a numerical control milling machine for CNC milling;
sixthly, performing surface machine polishing,
putting the milled section into a polishing machine for surface machine polishing, wherein the polishing machine is provided with two inserting cores, two ends of each inserting core are provided with 360-degree rotating devices, and three surfaces of a product can be polished in place in the machine polishing process;
the seventh step, the surface is thrown by hand,
manually polishing the mechanically polished section, and refining the fine defects after mechanically polishing;
the eighth step, surface oxidation,
carrying out surface oxidation on the profile after hand polishing, wherein the process of surface oxidation comprises the following steps: oxidizing and hanging, degreasing, rinsing, electropolishing, rinsing, removing a film, rinsing, removing ash, rinsing, anodizing, rinsing, cold sealing, rinsing, heat sealing, rinsing, drying, oxidizing and hanging, inspecting and packaging, and warehousing finished products.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. A production process of a high-precision streamline luggage rack section bar is characterized by comprising the following steps: the method comprises the following steps:
the first step, aluminum extrusion, is carried out,
preparing before production, heating a die, a cast rod and a charging barrel, and extruding on an extruder set;
then, performing air cooling or water mist quenching, then performing process self-checking after interruption, then performing traction and straightening, and then performing process self-checking again;
then, cutting to length, then, performing self-inspection of the process again, framing, and finally, performing artificial aging;
in the second step, the bending is carried out,
putting the die into a die to adjust a curved surface arc module and a positioning rotary hole under the condition of protecting the surface of a product;
thirdly, double-head saw cutting is carried out,
placing the bent section into sawing equipment for double-head sawing, wherein the sawing angle can be adjusted at will;
fourthly, milling and cutting the blank by CNC,
placing the double-head sawed section into a numerical control milling machine for CNC milling;
fifthly, the surface is polished by a surface machine,
putting the milled section into a polishing machine for surface machine polishing;
sixthly, manually polishing the surface,
manually polishing the mechanically polished section, and refining the fine defects after mechanically polishing;
the seventh step, surface oxidation,
carrying out surface oxidation on the profile after hand polishing, wherein the process of surface oxidation comprises the following steps: oxidizing and hanging, degreasing, rinsing, electropolishing, rinsing, removing a film, rinsing, removing ash, rinsing, anodizing, rinsing, cold sealing, rinsing, heat sealing, rinsing, drying, oxidizing and hanging, inspecting and packaging, and warehousing finished products.
2. The production process of the high-precision streamline luggage rack section bar according to claim 1, characterized in that: in the aluminum extrusion step, the temperature of a die is heated to 460 ℃, and the temperature is kept for 3.5 hours; heating the cast rod to 505 ℃, and keeping the temperature for 3 hours; heating the extrusion cylinder to 400 ℃, and keeping the temperature for 4.5 hours, wherein the extrusion speed is 0.1-0.15m/s during extrusion.
3. The production process of the high-precision streamline luggage rack section bar according to claim 1, characterized in that: and in the aluminum extrusion step, artificially aging the bent section for 6 hours at 175-185 ℃.
4. The production process of the high-precision streamline luggage rack section bar according to claim 1, characterized in that: the polishing machine in the surface machine polishing step is provided with two inserting cores, two ends of each inserting core are provided with 360-degree rotating devices, and all surfaces of the luggage rack sectional material are polished in the machine polishing process.
5. The production process of the high-precision streamline luggage rack section bar according to claim 1, characterized in that: the profile after hand throwing comprises a luggage rack profile body, wherein a left mounting part (1) and a right mounting part (3) which are symmetrical are respectively arranged at two ends of the luggage rack profile body, a middle transverse section (2) is arranged between the left mounting part (1) and the right mounting part (3), and the left mounting part (1) and the right mounting part (3) are bent inwards; the inner sides of the left mounting part (1) and the right mounting part (3) are respectively provided with a tangent plane; the left mounting part (1) and the right mounting part (3) are bent inwards by 30-40 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811470577.3A CN109604947B (en) | 2018-12-04 | 2018-12-04 | High-precision streamline luggage rack section bar and production process thereof |
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| CN201811470577.3A CN109604947B (en) | 2018-12-04 | 2018-12-04 | High-precision streamline luggage rack section bar and production process thereof |
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| CN109604947A CN109604947A (en) | 2019-04-12 |
| CN109604947B true CN109604947B (en) | 2021-05-25 |
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| CN110371034B (en) * | 2019-06-25 | 2021-04-09 | 湖州银都铝业科技有限公司 | High-strength automobile luggage rack, and preparation method and equipment thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203047086U (en) * | 2013-01-10 | 2013-07-10 | 宁波纽特汽车配件有限公司 | Automobile roof rail |
| CN105364420B (en) * | 2015-12-14 | 2018-04-10 | 四川成铝铝业科技有限公司 | A kind of aluminium section bar processing technology |
| CN205498794U (en) * | 2016-02-19 | 2016-08-24 | 广东东箭汽车用品制造有限公司 | Automobile luggage rack |
| CN105857196A (en) * | 2016-04-14 | 2016-08-17 | 广东东箭汽车用品制造有限公司 | Automobile baggage holder, manufacturing method and application of automobile baggage holder |
| CN107377648A (en) * | 2017-09-02 | 2017-11-24 | 湖南金牛铝业有限公司 | A kind of extrusion process of aluminium alloy extrusions |
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Effective date of registration: 20211112 Address after: 214422 No. 588, Chengyang Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangyin Nanfang New Energy Technology Co., Ltd Address before: 214422 No. 588, Chengyang Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangyin Nanhong New Energy Technology Co., Ltd |
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