A kind of cnc milling process of milling tool and aluminum decorative strip-like curved surface gap

Abstract

The invention belongs to the technical field of automobiles, and provides a CNC milling process for a milling tool and an aluminum decorative strip-like curved surface gap. The tool includes the following parts: a body, a handle and a milling cutter body. The body is used for milling the working parts of the product. The milling cutter body includes two round cutter grains for milling the arc surface of the product and two square cutter grains for milling the horizontal surface of the product, and the special milling process mills out the curved surface gap. The invention has the advantage of adopting the combination of circular cutter grain and square cutter grain, improving the milling efficiency of a single notch, meeting the production cycle requirement, overcoming the production capacity bottleneck of the existing milling process, and realizing high-efficiency mass production and milling surface quality requirements. It not only reduces the cost of production, but also ensures that the quality of the milled surface meets the requirements of Class A surface, and improves the dimensional stability of milling.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a milling tool and a CNC milling process for notches on curved surfaces of aluminum decorative strips. Background technique [0002] Car luggage rack is a kind of aluminum trim products. With the improvement of living standards, many RV cars and recreational vehicles are now loved by young driving leisure groups, and driving for leisure travel or sports often has a relatively There is a lot of luggage in the car, and the interior space of the car itself is too small to accommodate too many accompanying items, so installing a luggage rack on the roof helps to solve the shortcoming of being unable to accommodate too many accompanying items due to the small interior space of the car itself , the luggage rack located on the roof of the car can not only be used to place leisure sports items, but also load goods, etc. In order to make the appearance of the car luggage rack 8 more bea...

AI Technical Summary

Problems solved by technology

[0002] Car luggage rack is a kind of aluminum trim products. With the improvement of living standards, many RV cars and recreational vehicles are now loved by young driving leisure groups, and driving for leisure travel or sports often has a relatively There is a lot of luggage in the car, and the interior space of the car itself is too small to accommodate too many accompanying items, so installing a luggage rack on the roof helps to solve the shortcoming of being unable to accommodate too many accompanying items due to the small interior space of the car itself , the luggage rack located on the roof of the car can not only be used to place leisure sports items, but also load goods, etc. In order to make the appearance of the car luggage rack 8 more beautiful, such as figure 1 As shown, some high-end OEMs propose to process 6 notches on the top of the luggage rack, all of which are A-level surfaces. The / Y direction section is arc), and the processing area of ​​a single notch is relatively large. It takes 3 minutes to mill a notch with the ordinary ball cutter scheme. At the same time, there are many features on the bottom surface to be milled, which cannot achieve mass production at the specified pace (annual output of 80,000 units) , life cycle: 6 years), if a round tough end mill is used for processing, it cannot meet the requirements of curved surface processing and the milling surface quality must meet the requirements of Class A surface, so it is necessary to develop and design a special milling tool and milling process to Meet the milling efficiency of a single surface notch 7 and the appearance requirements of Class A surface

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