On-line detection method for automobile outer doorsill reinforcer

Abstract

The invention discloses an on-line detection method for an automobile outer doorsill reinforcer, which comprises the following steps: when a clamp clamps the reinforcer and places the reinforcer at an outer doorsill mounting position, arranging a color sensor at a position, corresponding to a positioning welding spot, on the clamp, the color sensor being connected with a control system, and realizing on-line detection according to the comparison between the welding color difference and the non-welding color difference. The color difference of the welding points is ingeniously utilized, the color sensor is combined with an existing clamp, other changes do not need to be carried out on equipment, but the problems which are difficult to solve for a long time are solved, online automatic detection is achieved, the problems that manual detection is low in efficiency and prone to making mistakes are solved, and unqualified products are also avoided.

Description

technical field [0001] The invention relates to an on-line detection method for an automobile outer door sill reinforcement, which belongs to the technical field of automobile welding and processing. Background technique [0002] In the outer door sill of a car, in order to increase the emphasis of the door sill and ensure that the weight will not be excessively increased, a hollow design reinforcement will be used. The structure of the reinforcement is similar to a hollow rectangular body connected to the welding ear. Generally, the inside of an outer door sill should be side by side. Weld 4 of these reinforcements. [0003] The reinforcement is a semi-finished process part, which needs to be processed first and then welded to the threshold. One side of the rectangular body is formed by folding two half-boards, one half-board is provided with two positioning holes, and the other half-board is provided with positioning protrusions, which are just correspondingly sunk into t...

AI Technical Summary

Problems solved by technology

These two positioning points need to be welded together. However, for the two welding points of the reinforcement, it is difficult to distinguish between welding and non-welding. Relying on the staff is not easy to identify from the appearance, which is easy to cause misidentification, resulting in no welding of these two points The reinforcement is welded to the sill

[0004] In terms of product quality, it is found that such unwelded outer thresholds require parts to be scrapped, which affects the product qualification rate; in terms of automobiles, once defective parts are welded on the entire vehicle, there will be safety hazards, which may cause the entire vehicle to be unqualified

These are unacceptable from any aspect. However, in the prior art, there is no such problem as equipment inspection, and it can only rely on on-site management, which has great risks

Moreover, relying on manual inspection is inefficient and error-prone

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