Six-freedom-degree spray coating robot

Abstract

The invention provides a six-freedom-degree spray coating robot which comprises a base, a waist joint, a big arm joint, a small arm joint, a three-freedom-degree obliquely crossed wrist, a spray gun support, flanges, bearings, a plurality of first drive mechanisms and second drive mechanisms, wherein the waist joint is movably fixed to the base, the big arm joint is movably fixed to the waist joint, the small arm joint is movably fixed to the big arm joint, the three-freedom-degree obliquely crossed base is movably fixed to the small arm joint, the spray gun support is connected to the tail end of the three-freedom-degree obliquely crossed wrist, and the flanges and the bearings are movably connected among all the joints or between the joints and the wrist. The first drive mechanisms are used for driving the waist joint, the big arm joint and the small arm joint to work, and the second drive mechanisms are used for driving the three-freedom-degree obliquely crossed wrist to work. Each first drive mechanism comprises a first servo motor and an RV speed reducer. Each second drive mechanism comprises a second servo motor, a planetary reducer, a hollow transmission shaft and a gear pair, wherein the planetary reducer is connected with the second servo motor, the hollow transmission shaft is connected with the planetary reducer in a matched mode, and the gear pair is arranged in the three-freedom-degree obliquely crossed wrist and connected with the hollow transmission shaft.

Description

technical field [0001] The invention relates to a painting robot, in particular to a six-degree-of-freedom painting robot. Background technique [0002] With the deepening of modern industrialization and the development of modern manufacturing technology, people have higher and higher requirements for the appearance quality of products, especially in industries such as household appliances, automobiles and light industry, the appearance quality of products even affects the products in the market. Competitiveness. Intelligent automatic coating equipment has gradually replaced traditional manual spraying due to its advantages of high spraying efficiency, uniform coating, and less pollution. At present, the commonly used automatic coating equipment mainly includes coating machines. However, the existing coating machines on the market have the following disadvantages: (1) There are few degrees of freedom and a small working space, which makes it difficult to meet the needs of ...

AI Technical Summary

Problems solved by technology

However, the existing coating machines on the market have the following disadvantages: (1) Less degrees of freedom, small working space, difficult to meet the needs of automatic spraying of the inner and outer surfaces of large and complex parts

(2) Poor flexibility, single spraying track, only specific parts can be sprayed

(3) The quality of spraying is low, and it is difficult to meet the spraying requirements for parts with high appearance quality requirements, such as the outer surface of automobiles

(4) Low positioning accuracy and low paint utilization

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