Production process of safety belt early-warning device tube

Abstract

The invention provides a production process of a safety belt early-warning device tube. The process comprises the following steps: S1, preparing a steel tube, cutting the steel tube to reach the preset size, and then filleting the outer circumferences of two ends of the cut steel tube; S2, corresponding defining the two ends of the steel tube to be an end A and an end B, and flaring the end A of the steel tube; S3, bending the steel tube which is flared in S2 into a preset shape; S4, processing the end B of the steel tube which is bent in S3 by twice grooving until the end B forms the preset shape; S5, cutting off an end port of the end B, grooved in S4, of the steel tube; S6, flattening the end port, cut off in S5, of the end B of the steel tube; S7, processing the end port, flattened in S6, of the end B of the steel tube, to obtain the preset shape; S8, removing burrs of a cutting port obtained in S7; S9, coating the steel tube obtained in S8 with an electrophoretic paint in an electrophoretic manner, wherein the inner surface is completely covered with a coating layer. According to the production process, the bending and forming effects of the steel tube are good; the wall thickness of the steel tube meets the use requirement of the safety belt early-warning device tube; the processing precision is high; the service life is long; the use effect is good.

Description

technical field [0001] The invention relates to the technical field of early warning tube production, in particular to a production process for a safety belt early warning tube. Background technique [0002] Such as figure 1 , figure 2 , image 3 as shown, figure 1 , figure 2 , image 3 It is a schematic diagram of the structure of the seat belt early warning tube. At present, in the production and processing technology of the seat belt early warning tube, the B end of the steel pipe is usually cut and formed. When cutting, the B end of the steel pipe is easy to break. It does not meet the requirements for the use of seat belt early warning tubes, the forming effect is poor, the processing accuracy is low, and the use effect is poor. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a production process for a safety belt pre-warner tube. [0004] A kind of production technology ...

AI Technical Summary

Problems solved by technology

[0002] like figure 1 , figure 2 , image 3 as shown, figure 1 , figure 2 , image 3 It is a schematic diagram of the structure of the seat belt early warning tube. At present, in the production and processing technology of the seat belt early warning tube, the B end of the steel pipe is usually cut and formed. When cutting, the B end of the steel pipe is easy to break. It does not meet the requirements for the use of seat belt early warning tubes, the forming effect is poor, the processing accuracy is low, and the use effect is poor

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