Three-dimensional braided composite material mechanical arm and manufacturing method thereof

Abstract

The invention discloses a three-dimensional braided composite material mechanical arm and a manufacturing method thereof. The mechanical arm sequentially comprises a body rigid structure layer, an anti-impact layer and a surface machining assembly layer from inside to outside. The body rigid structure layer comprises a three-dimensional braided structure and a resin layer, wherein the three-dimensional braided structure is manufactured from high-modulus fibers, and the resin layer is solidified on the three-dimensional braided structure in a dipping mode. The anti-impact layer comprises a three-dimensional braided structure and a resin layer, wherein the three-dimensional braided structure is manufactured from hybrid fibers composed of high-modulus fibers and organic fibers, and the resin layer is solidified on the three-dimensional braided structure in a dipping mode. The surface machining assembly layer comprises a two-dimensional winding layer fabric structure and a resin layer, wherein the two-dimensional winding layer fabric structure is manufactured from high-strength fibers, and the resin layer is solidified on the two-dimensional winding layer fabric structure in a dipping mode. The mechanical arm has the advantages of being high in strength, high in rigidity, low in weight, not prone to deformation and high in designability, machinability and assembling ability, the weight of components is reduced, the power of a motor is reduced, energy consumption is reduced, and stability and quality of products are guaranteed.

Description

technical field [0001] The invention relates to an engineering automation mechanical equipment accessory, in particular to a three-dimensional braided composite material mechanical arm for automatic mechanical equipment and a preparation method thereof. Background technique [0002] At present, with the improvement of the automation level of industrial equipment, the application of industrial robots is increasing. Industrial robots are a high-tech collection formed by a series of disciplines such as machinery, material electronics, control and computer technology. They have been widely used in machinery manufacturing, chemical production, road and bridge construction, mineral mining, national defense, space exploration and other fields. Industrial robots replace human beings to engage in heavy single work, which is of great significance in reducing human labor intensity, improving production automation level, and improving production efficiency. In recent years, the lightwe...

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Problems solved by technology

These structures all have the problem of weak mechanical properties between layers of fiber-reinforced braids. During the operation of the robot arm, the high-speed reciprocating motion will cause the vibration amplitude of the robot arm to be too large, which will affect the operation accuracy. Defects caused by interlayer damage of composite materials caused by mechanical assembly processing

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