Automatic calibrating device and method used for automobile sideslip testing table

Abstract

The invention discloses an automatic calibrating device and method used for an automobile sideslip testing table. The automatic calibrating device comprises a base. A controller, an optical grating adapter, a servo motor driver, a stepping motor, a lead screw base, a ball screw, a push rod, a grating ruler, a thrust sensor and an electromagnetic meter base are arranged on the base. The ball screw is driven by the stepping motor to drive the measurement push rod to push sideslip plates on the two sides of the automobile sideslip testing table to synchronously move, the displacement of the sideslip plates is collected through the grating ruler and fed back to a servo system, fine adjustment is carried out on the stepping motor through the controller, a full-closed-loop system is formed, and the displacement is accurately positioned; due to the adoption of the ball screw, errors of strokes of the lead screw are reduced, the detection working efficiency and the detection accuracy are improved, an optical ruler adapter is connected with an upper computer, detection data are automatically collected, stored and printed, and the automatic calibrating device and method have good application prospect.

Description

technical field [0001] The invention relates to an automatic verification device and method for an automobile sideslip test bench, belonging to the technical field of automobile detection. Background technique [0002] Automobile sideslip test bench is an inspection equipment used to detect whether the cooperation between the toe-in and camber angle of the front wheel (steering wheel) of the automobile is appropriate. It is composed of the main engine and two parallel side slide plates. , the side skateboards move left and right respectively, and according to the displacement of the side skateboards and the size of the moving damping, it is judged whether the safety performance of the inspected vehicle meets the requirements of the automobile testing standards. At present, the verification method used for the automobile sideslip test bench is to rotate the screw by hand or directly use the spring tension gauge to drive the side slide plate, measure the displacement of the si...

AI Technical Summary

Problems solved by technology

At present, the verification method used for the automobile sideslip test bench is to rotate the screw by hand or directly use the spring tension gauge to drive the side slide plate, measure the displacement of the side slide plate with a dial indicator, manually rotate the screw rod or directly use the spring tension gauge to drive the side slide plate , it is easy to produce stroke error and difficult to accurately locate, there is an estimation error in the reading of the dial indicator, and errors may also occur in the manual recording data. Manual detection is not only low in efficiency and accuracy, but also reliable in the detection results of the displacement of the side slide and the moving damping Sex is also difficult to guarantee

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