Accurate tire section constraint method

Abstract

The invention relates to an accurate tire section constraint method, which comprises the following steps of: scanning by using scanning equipment, establishing a three-dimensional geometric model of afinished tire in a non-assembled state, and generating a tire section model in the non-assembled state by virtue of the three-dimensional geometric model. A constraint plate with a clamping groove ismanufactured according to parameters of a tire section model, the cut tire section is placed in the clamping groove of the constraint plate, and the clamping groove is used for completely constraining the tire section. The constraint plate is used for completely constraining the section of the tire, section shape distortion of the section of the tire due to internal stress release can be eliminated, consistency of the section contour shape of the tire and the section contour of a finished tire during detection is guaranteed, and the section detection precision of the internal structure of thetire is improved.

Description

technical field [0001] The invention belongs to the field of tire structure analysis, in particular to an accurate tire section binding method. Background technique [0002] During the production and processing of tires, the rubber material will flow throughout the process, and the position of the steel wire material will also partially change, which leads to certain errors between the finished tire and the design, and affects the quality of the tire. The three-dimensional scanning method can only measure the shape of the tire but cannot observe its internal conditions. This requires cutting the finished tire and analyzing the tire section size of the finished tire. Through the measurement and analysis of the tire section, the tire structure and Analyze the size of each part, analyze the failed tire, find the cause of failure, and improve product quality at the same time. At the same time, when analyzing competitors' products, it is also necessary to dissect the tires and c...

AI Technical Summary

Problems solved by technology

Existing bound methods for tire section detection, such as figure 2 As shown, a piece of plastic tape is bound at the bead joint position of the cut tire section. The length of the tape is designed according to the joint width of the assembled rim. Although the bead joint position of the tire section is bound and fixed by this method, other The position still has a large amount of deformation and cannot accurately represent the actual cross-sectional profile shape of the tire

[0004] Existing Chinese invention patent, patent application number: 201820945924.2, patent name: A tire section slice locator discloses a tire section slice locator, which can restore the tire section size and improve the accuracy of measurement data, but only by 5 points When the constraint is fixed, the distortion of the section shape at the unconstrained point is still uncontrolled and cannot be corrected, which affects the detection accuracy of the tire section size

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