Acceptance check detecting tool for automobile sheet metal parts

Abstract

The invention discloses an acceptance check detecting tool for automobile sheet metal parts, which comprises a detecting tool body, a measuring knife, positioning columns and a clamping device, wherein upper part structures of characteristic blocks in the detecting tool body are characteristic structures matched with structural characteristics at matching parts of the detected sheet metal parts and the characteristic blocks. Due to the use of the acceptance check detecting tool, the sheet metal parts entering and leaving a factory can be rapidly detected with high precision, precision changing points of important characteristics of the sheet metal parts can be effectively discovered, and the precision consistency of the sheet metal parts during the life cycles of automobile types can be guaranteed. The acceptance check detecting tool can be used for detecting the sheet metal parts during acceptance check of the sheet metal parts.

Description

technical field [0001] The invention relates to an acceptance testing tool for automobile parts, in particular to an acceptance inspection tool for automobile sheet metal parts. Background technique [0002] At present, the structure of conventional inspection tools for automobile sheet metal parts generally includes a positioning surface 42, main and auxiliary positioning pins 43 and 44, a base plate 1, and a inspection tool body 45, as shown in the accompanying drawings. figure 1 shown. Its detection principle is as follows: [0003] Taking the positioning surface and the main and auxiliary positioning pins as the detection reference, the gap between the periphery of the workpiece and the detection surface is measured by the gap ruler (the detection surface is obtained by offsetting the theoretical surface of the digital model by 3mm), and the tolerance requirements of the important surface of the sheet metal parts It is ±0.5mm, so for important profiles, the measured va...

AI Technical Summary

Problems solved by technology

[0004] The realization of the above detection principle requires that the positioning pin and the positioning surface have a strong reference. The accuracy of the positioning hole and the positioning surface relative to the overall part has a great influence on the detection results of important profiles, and the detection reference of the gage is sometimes different from the manufacturing reference. , The assembly benchmarks are inconsistent, so that the detection errors cannot be directly reflected in the actual assembly relationship, making it difficult to find the real cause of the accuracy problems in the actual production process; in addition, the detection of conventional inspection tools requires a lot of measurement work, which is laborious and time-consuming Low efficiency, high detection cost, unable to achieve rapid random inspection

[0005] In short, the existing conventional inspection tools have the disadvantages of low detection accuracy, relatively complicated measurement operation, no precision change point recognition function, and some features are located in the detection blind area and cannot be detected.

Images