Method for measuring three-dimensional data of autobody and chassis based on optical-electricity encoder

Abstract

The invention provides a method for measuring three-dimensional data of an autobody and a chassis based on an optical-electricity encoder. The method for measuring the three-dimensional data of the autobody and the chassis based on the optical-electricity encoder is designed to solve the problem that the current mechanical or electronic type measuring method is inconvenient to use and to improve use convenience and measuring efficiency. According to the technical scheme, the method for measuring the three-dimensional data of the autobody and the chassis based on the optical-electricity encoder is characterized in that a measuring arm is composed of a plurality of joints which are connected with one another, wherein a first joint (1), a second joint (2), a third joint (3) and a fourth joint (4) are in the same plane, the fourth joint (4) is perpendicular to the third joint (3), a fifth joint (5) rotates in the plane which is perpendicular to the fourth joint (4), a sixth joint (6) rotates in the plane which is perpendicular to the fifth joint (5), and joint rotating shafts are respectively embedded in the optical-electricity encoder and are used for measuring the rotation angels of the joints. The three-dimensional data of any measurement points of the autobody and the chassis can be measured through angle measurement, coordinate calibration and conversion calculation.

Description

technical field [0001] The invention relates to a method for measuring three-dimensional data of an automobile body and chassis, in particular to a method for measuring three-dimensional data of an automobile body and chassis based on a photoelectric encoder. Background technique [0002] In the sheet metal plastic repair of automobiles, it is often necessary to use the process holes and installation holes on the automobile body and chassis as measurement points for three-dimensional data measurement, and compare the measured data with standard data to diagnose the collision deformation of the automobile body and chassis. Damage and repair effects. [0003] At present, there are mechanical and electronic methods for measuring three-dimensional data of automobile body and chassis. Mechanical measurement methods use various types of mechanical measuring rulers, which have large measurement errors, inconvenient data query, and low measurement efficiency; electronic measurement...

AI Technical Summary

Problems solved by technology

Mechanical measurement methods use various types of mechanical measuring rulers, which have large measurement errors, inconvenient data query, and low measurement efficiency; electronic measurement methods include ultrasonic method measurement, laser method measurement, etc. Although the equipment using these measurement methods has high measurement accuracy, but Expensive, low cost performance, complex operation, the measurement point must be confirmed before measurement, and the equipment is difficult to move and inconvenient to use

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