Multi-degree-of-freedom continuous composite fiber material 3D printer

Abstract

The invention discloses a multi-degree-of-freedom continuous composite fiber material 3D printer which comprises a triangular prism rack, a nozzle mechanism and a printing platform are arranged in the triangular prism rack, the nozzle mechanism is connected with the triangular prism rack through a first movement mechanism, a distance measuring module and a shearing mechanism are arranged on the nozzle mechanism, and the printing platform is connected with a second movement mechanism. The distance measuring module is used for measuring distance information between the nozzle mechanism and the printing platform, the shearing mechanism is used for shearing continuous composite fiber materials sprayed out of the nozzle mechanism, the second movement mechanism is used for driving the printing platform to rotate in the X-axis direction, the Y-axis direction and the Z-axis direction, and the first movement mechanism is used for driving the nozzle mechanism to move in the X-axis direction, the Y-axis direction and the Z-axis direction. The processor adjusts the poses of the nozzle mechanism and the printing platform through the first movement mechanism and the second movement mechanism, receives distance information at the same time to further adjust the pose of the nozzle mechanism, ensures that a nozzle of the nozzle mechanism is always parallel to the printing platform, and completes printing of complex products in combination with the shearing mechanism.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a multi-degree-of-freedom continuous composite fiber material 3D printer. Background technique [0002] With the continuous development of technology and the gradual maturity of additive manufacturing, more and more high-performance materials are applied to additive manufacturing. As a high-performance composite material, carbon fiber has a series of advantages such as light weight, high strength, high modulus, small thermal expansion coefficient, corrosion resistance, good thermal conductivity, wear resistance, and high temperature resistance, and is widely used in aerospace , automobile manufacturing, sports equipment, measuring instruments, heat-collecting and heat-conducting materials and other fields, its excellent performance will of course be used for the research and application of additive manufacturing. [0003] Continuous fiber-reinforced co...

AI Technical Summary

Problems solved by technology

[0005] The current carbon fiber 3D printing process based on fused filament extrusion molding (FDM) has low forming surface accuracy. During the printing process, the product is prone to defects such as faults, deformation and warping, fiber shedding, and fiber interruption.

When the FDM 3D printing process forms parts with suspension features such as continuous fiber spanning structures and extension structures, the fiber parts are prone to a series of problems such as deformation, distortion, and collapse, resulting in final printing failure. In addition, when printing some small-angle features, there is a step effect. Obviously, it largely leads to relatively low surface accuracy

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