CATIA-based automobile luggage rack design method and terminal

Abstract

The invention discloses a CATIA-based automobile luggage rack design method and a terminal, and the method comprises the steps: firstly extracting an isoparametric curve of the top surface of a luggage rack, extending a curved surface, passing through a first end point of the isoparametric curve, making a vertical line which is vertical to the extending curved surface and is as long as a first preset length, and taking the first end point as a starting point, intercepting a line segment as long as a second preset length along the isoparametric curve to obtain an intercepted curve, and extending an end point on the same side with the first end point on the intercepted curve by a third preset length along the curvature direction to obtain an extended end point, and establishing a first sample curve which is a curve tangent to the intercepted curve by taking the extension endpoint and one end, far away from the first endpoint, of the vertical line as two endpoints, repeating to obtain a second sample curve, and integrating to obtain a final sample curve so as to sweep the main section of the luggage rack. The first preset length, the second preset length and the third preset length are adjusted, so that gaps between the luggage rack and the side wall metal plate and between the luggage rack and the roof metal plate are uniform, the requirement of a uniform-section technology is met, and the project progress is accelerated.

Description

technical field [0001] The invention relates to the field of automobile parts manufacturing, in particular to a CATIA-based design method and terminal of an automobile luggage rack. Background technique [0002] Nowadays, car roof racks are generally divided into split type and integrated type according to the classification of parts. Among them, the one-piece luggage rack material industry usually chooses aluminum, which is processed through extrusion, bending, sawing and milling, surface treatment, assembly and other processes. When an auto industry company is developing a new car, all components are modeled and structurally designed at the same time. However, the current market competition is becoming increasingly fierce, and major auto industry companies are shortening the vehicle design and development cycle to meet the needs of rapid replacement of market models. Therefore, many auto companies freeze data in batches according to the length of the mold opening cycle o...

AI Technical Summary

Problems solved by technology

Therefore, when the data is frozen in advance, it is difficult to optimize the design of the luggage rack, which affects the project schedule

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