Die and tool assembly and manufacturing method of intelligent composite material actuator

Abstract

The invention discloses a die and tool assembly and manufacturing method of an intelligent flexible composite material actuator. The die and tool assembly of the intelligent flexible composite material actuator comprises a die and a tool. To manufacture the actuator, an SMA wire needs to be subjected to tensioning memory training firstly; aluminum alloy clamps need to be clamped in the middle section of the SMA wire after tensioning is completed, specifically, the interval between the aluminum alloy clamps is 5-10 mm smaller than the length of the actuator die; and the SMA wire is placed in the die after penetrating through a through hole of a short baffle, the aluminum alloy clamps are located on the inner side of the die, then vacuumized PDMS glue is slowly and evenly injected when the SMA wire is in the tensioned state, and die parts can be detached step by step in the demolding process of the actuator. According to the die and tool assembly and manufacturing method of the intelligent composite material actuator, the SMA wire can be tensioned in advance, and the tensioning prestress of the SMA wire is worked out finally through marking and measurement; the manufacturing process of the intelligent composite material actuator has the advantages that operation is easy and controllability is high; and by the adoption of the assembly type die, the die parts are easy to manufacture, and the actuator die is more convenient to disassemble.

Description

technical field [0001] The invention relates to the technical field of intelligent materials, structures and preparations, in particular to a mold tooling assembly and a preparation method of an intelligent composite material active device. Background technique [0002] Smart flexible composite actuators refer to implanting SMA wires (Shape Memory Alloy wires) into flexible matrix materials, or composite material media containing ordinary fibers and matrix, to generate composite structures with multifunctional and adaptive features. This structure can be applied to cutting-edge scientific and technological fields such as space station technology, mechanical engineering, transportation energy, national defense industry and aerospace engineering, and has gradually begun to penetrate into biomedicine, daily civilian products, bionics and other fields. [0003] "Application of SMA and its intelligent composite materials in vibration control" by Zhang Xiaomei, Shi Jiandong, etc. ...

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Problems solved by technology

[0008] At present, most domestic literatures focus on the theoretical research and numerical modeling of the thermodynamic behavior of SMA wires using shape memory properties combined with elastic substrates, or research on hinges formed by shape memory polymer composite materials; although foreign literature involves intelligent flexible composite materials However, the specific preparation technology of the actuator, that is, the mold and tooling and the preparation method, are kept secret or less introduced

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