High-speed high-precision 3D printer

Abstract

The invention discloses a high-speed high-precision 3D printer and mainly relates to the technical field of 3D printing. The high-speed high-precision 3D printer comprises an X-axis module, a Y-axis module, a Z-axis module, an extrusion mechanism, a platform mechanism and a machine casing; the Z-axis module comprises two retaining plates; a Z-axis ball screw and two Z-axis uprights are arranged on the retaining plates; the Z-axis uprights are in pin connection with the machine casing through a plurality of positioning pins; two Z-axis linear guide rails are mounted on the Z-axis uprights; a nut of the Z-axis ball screw and sliders of the Z-axis linear guide rail all are fixed on the platform mechanism; the Y-axis module is fixed at the top ends of the Z-axis uprights; the X-axis module comprises an X-axis upright that is in sliding connection with the Y-axis module in a Y-axis direction; an X-axis ball lead and two X-axis linear guide rails are mounted on the X-axis upright; the extrusion mechanism is mounted on a nut of the X-axis ball screw and the sliders of the two X-axis linear guide rails. The high-speed high-precision 3D printer has the beneficial effects of stable transmission, high mechanical strength, and remarkable increase of precision and speed.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a high-speed and high-precision 3D printer. Background technique [0002] 3D printer is a kind of machine belonging to rapid prototyping technology (rapid prototyping). It is based on digital model files, using powdered metal or plastic and other bondable materials to construct objects by stacking and accumulating layer by layer. In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and is now gradually being used in the direct manufacture of some products. In particular, some high-value applications (such as hip joints or teeth, or some aircraft parts) already have parts printed using this technology, and are being exported to jewelry, footwear, industrial design, architecture, engineering and construction (AEC ), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineer...

AI Technical Summary

Problems solved by technology

This is mainly because the transmission connections in the three directions of the X-axis, Y-axis, and Z-axis of the prior art 3D printers are unstable, resulting in large spatial positioning deviations of the nozzles. Good, so that it cannot effectively restrain the force generated during the rapid travel and positioning of the X-axis, Y-axis, and Z-axis, resulting in slight vibration and further reducing printing accuracy

As a result, the size of the printed product is inconsistent with the preset three-dimensional data (too large or too small); the verticality is not good; the straightness is not good; the roundness is not ideal; question

As a result, the practicability of 3D printed products is not strong, it is difficult to meet the quality requirements of most high-end industrial products, and it is impossible to independently manufacture high-end industrial products, which greatly limits the industrial added value of 3D printing

[0004] In addition, the lower printing accuracy also affects the improvement of printing speed

Obviously, a higher printing speed will inevitably amplify the defects of poor transmission stability and insufficient rigidity of the existing 3D printers, aggravate the vibration during printing, and make the positioning of the nozzle more inaccurate

Therefore, under the constraints of printing accuracy, the printing speed has also stagnated

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