A 3D printing system structure

Abstract

The invention relates to a 3D (three-dimensional) printing system structure. The 3D (three-dimensional) printing system structure comprises a lifting printing platform, a dual-screw dual-optical-axis Z-shaft driving mechanism, an X-shaft drive mechanism, a Y-shaft drive mechanism as well as a stationary object carrying platform, wherein the printing platform is provided with an X-shaft drive motor and a Y-shaft drive motor; the two motors are respectively connected to a pair of driven bearings by synchronous belts at two ends of the driving shaft; double slide shafts in the X direction and the Y direction are both provided with slide seats; two pairs of slide seats are respectively connected by an X cross beam and a Y cross beam, and the two cross beams respectively penetrate through a 3D printer head; a driving motor of the dual-screw dual-optical-axis driving mechanism and the driving shaft are connected by the synchronous belt; the position of the driving motor can be adjusted randomly. The X-shaft drive mechanism, the Y-shaft drive mechanism and the driving shaft operate individually, so that the motion modulation is reduced; the dual-screw dual-optical-axis driving mechanism has favorable stability, so that the printing platform is stressed in a balance manner; the driving in each direction is stable; the 3D printing precision is improved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a 3D printing system structure. Background technique [0002] In the existing small 3D printers, a composite shaft device that provides rotation and sliding at the same time is mostly used to drive the movement of the 3D printer head in the X and Y directions. Since the same shaft is used as a sliding shaft and a rotating shaft at the same time, the device will be affected by various interference factors during operation, thereby affecting the machining accuracy. When the 3D printer head works for a long time, the disadvantages will be more prominent, which greatly reduces the quality or pass rate of the processed parts. [0003] At the same time, most existing small 3D printers use L-shaped unilateral suspension to provide Z-axis movement. This device only uses a vertical screw to drive the stage to move in the Z-axis direction. Due to the unilateral suspension...

AI Technical Summary

Problems solved by technology

Since the same axis is used as the sliding axis and the rotating axis at the same time, the device will be affected by various interference factors when it is working, thus affecting the machining accuracy

When the 3D printer head works for a long time, the shortcomings will be more prominent, which greatly reduces the quality or pass rate of the processed parts

[0003] At the same time, most of the existing small 3D printers use L-shaped unilateral suspension to provide Z-axis movement. This device only uses a vertical screw to drive the stage to move in the Z-axis direction.

Due to the unilateral suspension, the device is not easy to be stable when working, and it is easy to deform under load-bearing conditions, thus affecting the processing accuracy

When the size of the stage is made too large, the disadvantages will be more prominent, so in principle, the size of the workpiece is limited

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