Machining process of metal automobile door frames

Abstract

The invention discloses a machining process of metal automobile door frames. The machining process comprises the following steps A, welding is conducted; B, rough polishing is conducted; C, finish polishing is conducted; D, the metal automobile door frames are sequentially placed on hangers after being subjected to finish polishing and are then conveyed cyclically; and E, in the operating direction, a water-based antirust agent solution is sprayed to the metal automobile door frames on the hangers first to form antirust protective films, then the appearances of the metal automobile door framescovered with the antirust protective films are inspected manually or through equipment, and finally, the metal automobile door frames are taken from the hangers fixed to a conveyor so as to be subjected to dimension inspection. The metal automobile door frames obtained through the machining process have a good antirust effect and facilitate subsequent machining, and the quality and quality stability of final products are guaranteed; and in addition, the machining efficiency is high, the quality is good, the dimensional precision of the metal automobile door frames can be guaranteed, and the surface smoothness is good.

Description

technical field [0001] The invention relates to the technical field of automobile metal door frame processing, in particular to an automobile metal door frame processing technology. Background technique [0002] As cars are more and more recognized and used by people, they have become the main means of transportation in modern society and families. The safety and quality of cars are the main property indicators related to cars. [0003] Auto spare parts are the units that constitute the whole of auto parts processing and the products that serve the processing of auto parts. With the increasingly fierce competition in the auto parts processing market, the popularization of the concept of environmental protection, and the continuous upgrading and application of technology, the international auto parts processing parts industry has shown the following development characteristics in recent years: [0004] ① The trend of supporting and modular supply of auto parts processing sys...

AI Technical Summary

Problems solved by technology

[0010] 1. The metal door frame of the car is usually made of metal, which is easy to rust, and the processing process often adopts an assembly line operation, and there is a period of time between the later painting, so it is easy to appear that the metal door frame of the car has been rusted before the post-processing process such as painting, resulting in the need for reprocessing Rust removal affects product quality and reduces processing efficiency;

[0011] 2. The metal door frame parts of automobiles are relatively large, and the transfer is inconvenient, but the process often adopts assembly line operations and requires multiple transfers, which greatly reduces the processing efficiency;

[0012] 3. Due to the limited production continuity, it is often difficult to guarantee the dimensional accuracy and surface finish of the final product of the automotive metal door frame

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