A main tire mounting and tightening device for a variable-pitch robot and its working method

Abstract

The invention discloses a main tire mounting and tightening device for a variable pitch robot and a working method thereof, comprising: one side of a frame body is fixedly connected to a pressing device, and the pressing device is connected to a robot body; The upper end; the rotating bracket is set in the frame, and the upper end of the rotating bracket is connected to the output shaft of the rotating device; the rotating device drives the rotating bracket to rotate around its axial direction; several distance changing devices are arranged on the rotating bracket in a circular array; the camera and light source system Set on the side of the frame; the tire grabbing device includes two grabbing parts, and the two grabbing parts are respectively arranged on both sides of the rotating bracket; several tightening shaft devices are respectively arranged on several distance changing devices, and each distance changing device Drive the tightening shaft device to move radially along the rotating device. The present invention realizes the automatic feeding of the nuts of the main tires through the provided tightening shaft device, and the main tires are automatically loaded, installed and automatically tightened.

Description

technical field [0001] The invention relates to the technical field of tire installation, in particular to the technical field of a main tire installation and tightening device for a variable pitch robot. Background technique [0002] With the upgrading of the industry and the advancement of Industry 4.0, more and more robots are appearing in the automobile assembly workshop, including: main tire installation, windshield installation, seat installation and instrument installation, etc. In the main tire installation process, the vehicle body is usually conveyed by a positive and free suspension conveyor or a pallet-type flexible drive conveying system; the main tire is generally conveyed by a powered roller, and the nuts (screws) are fed and sorted by vibrating trays, and the tightening machine It is a multi-axis combined tightening machine, according to tire installation, nut (screw) pre-tightening, manual nut assembly, pre-installation and tightening machine in place, the t...

AI Technical Summary

Problems solved by technology

At present, there are two major problems in this field. One is that the multi-axis tire tightening machine does not have the ability to change pitch. In order to overcome this problem, there are two typical methods: one is to increase the main tire tightening machine, and the other is to manually change the pitch distance, but it will affect the overall beat, and the former will increase the hardware cost; another problem is that the demand for beat optimization also has two solutions, one is to use orthogonal tracks to realize the automatic transplanting of the tightening machine, The main tire mounting machine is added to realize semi-automatic installation, but manual installation and pre-tightening of nuts (screws) are still required, and the 3D compensation of the installation position cannot be solved, and manual alignment and preloading are required; another solution is similar to the present invention— —Introduce robots, and the automatic tightening can be realized by the multi-axis tightening machine held by the robot, but on the one hand, it requires more modification of the transmission line of the car body to realize fixed-point installation; The quality of the installation of the main tires cannot meet the needs of flexible production, and the simple superposition has caused the tightening shaft cable to be easily damaged and cannot achieve reliable and stable assembly.

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