Welding centering checking fixture for automobiles

Abstract

The invention provides a welding centering checking fixture for automobiles. The welding centering checking fixture comprises a link mechanism and positioning devices, wherein the positioning devices are connected with the link mechanism through pin shafts; positioning pins on the positioning devices are positioned in automobile body RPS holes; the centering checking of parts, symmetric to each other, on the left and the right of an automobile can be achieved through the operation of the link mechanism; through the centering mechanism, the deviation value between actual data and theory data of an automobile body can be measured; corresponding correction is carried out according to a data production line to ensure the degree of symmetry of the complete automobile. Through the adoption of the welding centering checking fixture, the problem that the matching gap between parts is too large or too small, which is caused by manufacturing deviation brought by left side welding and right side welding of the automobile body, is solved, so that the symmetry of the complete automobile is ensured, and gaps between all parts of the complete automobile can be uniform and attractive and meet the theoretical size tolerance. The welding centering checking fixture has the advantages that the structure is simple, the centering speed is high, the cost is low, the data are accurate, and the welding centering checking fixture can be cooperated with other checking fixtures to reduce stations.

Description

technical field [0001] The invention relates to a welding alignment inspection tool for automobiles, which belongs to the field of automobile welding inspection. Background technique [0002] The welded parts of auto parts are indispensable parts in automobile manufacturing. The gap size, symmetry and position degree between the parts are very important, among which the symmetry of the left and right parts of the welded parts is one of the most important links. , any deviation is not allowed. During the manufacturing process, the installation dimensions of the left and right parts are often asymmetrical. After the final assembly, the fitting gap between the parts is too large or too small, which is very unsightly, directly affects the quality of the vehicle, and leads to many defects in the sales process. Customers are very dissatisfied with this, so various manufacturers are also paying attention to the impact of this increasingly serious problem, and are also taking some m...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem of too large or too small gaps of matching parts caused by the manufacturing deviation of the left and right sides of the vehicle body, so as to ensure the symmetry of the vehicle loading, and make the gaps of each part of the vehicle uniform, beautiful, and in line with the theoretical dimensional tolerance

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