A production process of automobile door and window frame

Abstract

The invention discloses a car door and window frame production process, and relates to the field of cars. A car door and window frame is manufactured through the steps of window frame strip extrusion, window frame strip combination, car door assembling, electrophoretic painting, stopping opening gluing, drying, stopping opening paint repairing, sealing strip installing and the like. According to the car door and window frame production process, a blank is pressed into a die cavity in a certain shape to form window frame strips in different models, then the window frame strips are combined to form car window frames in different shapes, the production process is simple, large production equipment is not needed, the application scope is wide, and the product quality is even.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a production process for automobile door and window frames. Background technique [0002] At present, the technology for forming the aluminum alloy door and window frames of automobiles is still blank in China. In foreign countries, large-scale and complex CNC bending machines are generally used for forming automotive aluminum alloy door and window frames with complex cross-sectional shapes and complex spatial geometries. Take the upper window frame of the front door of the Audi 100 car as an example. The profile of the window frame is aluminum alloy, and its cross-section is hollow and asymmetrical. For complex spatial geometry, West Germany uses large-scale CNC multi-dimensional bending machines with a variety of auxiliary machinery and auxiliary tools to produce, and the complex equipment costs a lot of money. Such as Chinese Patent No. CN89108444.4, a kind of automobile door and ...

AI Technical Summary

Problems solved by technology

Take the upper window frame of the front door of the Audi 100 car as an example. The profile of the window frame is aluminum alloy, and its cross-section is hollow and asymmetrical. For complex spatial geometry, West Germany uses large-scale CNC multi-dimensional bending machines with a variety of auxiliary machinery and auxiliary tools to produce, and the equipment is complex and costs a lot of money.

Such as Chinese Patent No. CN89108444.4, a kind of automobile door and window frame section forming process, it decomposes the section shape of automobile door and window frame into several kinds of section shapes, and through several processing procedures, each procedure processes a kind of section shape, and the last step The cross-sectional shape required by the process is completed. The processing of the cross-sectional shape can be done by molding or rolling. The cross-sectional shape of the automobile window frame obtained has high strength, good rigidity, and no deformation. However, the processing procedure is complicated and the product cost is high.

And adopt other methods to produce car door and window frame now, as Chinese Patent No. is a kind of forming method of automobile aluminum alloy car door and window frame CN90107331. The profile blank is extruded from one end of the film into the cavity of the film to obtain a profile product consistent with the cavity. The shape of the aluminum alloy door can be a multi-dimensional geometric shape. Using this method to process the profile blank can prevent wrinkling and collapse. It can also eliminate the springback of the workpiece, save large and complex special machine tools and a large number of auxiliary equipment, reduce equipment investment and product production costs, and can well guarantee the quality of the workpiece product, but the model of this method is The overall window frame model can only be applied to the window frame of the same car model, and its application range is small, and its own multi-dimensional geometric shape is prone to uneven or difficult to press in when the blank is pressed in. Therefore, this method It is of great significance to improve and invent a production process for automobile door and window frames with wide application range, uniform product quality and low production difficulty