A 3D printer based on cylindrical coordinate system

Abstract

The invention discloses a 3D printer based on a cylindrical coordinate system. The 3D printer comprises an annular module, a spray head module, a lifting module, a main body frame and a printer outercover; the annular module is in sliding fit with a supporting column of the main body frame through a linear bearing, the annular module is fixedly connected with the lifting module through a liftingraising frame, and the lifting module is fixedly connected with the main body frame through a lifting driving motor fixed on a top cover; and under the cylindrical coordinate system, the spray head module needs to perform circumferential rotation motion, radial linear motion and axial lifting motion, wherein the circumferential rotation motion is completed through drive from a rotation driving sliding block of the annular module, the radial linear motion is completed through the cooperative drive from a radial driving module and a radial driven module of the annular module, and the axial lifting motion is completed through drive from the lifting module. The 3D printer has the characteristics of being compact in structure and reasonable in design, moreover, the size is small, the printing range is relatively large, and the stability and the printing precision are relatively high.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a 3D printer based on a cylindrical coordinate system. Background technique [0002] 3D printing technology, an emerging technology in recent years, is currently mainly used in the field of industrial design. Generally, the model is established by computer-aided design software, and then the model is presented through additive printing technology, which can realize the shape processing that cannot be formed by traditional mechanical processing technology. [0003] The current 3D printers are mainly arm printers and parallel arm structure printers based on the XYZ three-direction movement of the Cartesian coordinate system. Such a mechanism requires three sets of driving and sliding devices, which occupy a large volume and a relatively small printing range. During the reciprocating printing process, a large additional dynamic load will be generated, which will lead to fatigue damage of ...

AI Technical Summary

Problems solved by technology

[0003] The current 3D printers are mainly arm printers and parallel arm structure printers based on the XYZ three-direction movement of the Cartesian coordinate system. Such a mechanism requires three sets of driving and sliding devices, which occupy a large volume and a relatively small printing range. During the reciprocating printing process, a large additional dynamic load will be generated, which will lead to fatigue damage of the parts and a decrease in the overall stability of the mechanism, thereby affecting the printing accuracy

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