Rapid forming method based on double-forming head

Abstract

The invention relates to a rapid forming method based on a double-forming head. The method comprises the following steps that (1) a three-dimensional solid model is built, and a model data file is output; (2) the model data file is recognized and analyzed through a software program, hierarchical processing is carried out, and then partition processing is carried out or partition processing is carried out, then hierarchical processing is carried out, and discrete two-dimensional layer information is obtained; (3), through the path planning process, a scanning path of the obtained discrete two-dimensional layer information is planned, and according to scanned outline information, forming head scanning paths with two kinds of precision can be respectively planned; (4) according to the outline information of each layer of scanning, a conventional precision forming head needle rapidly performs filling on the interior, a high-precision forming head needle performs high-precision filling on the surface of the outline, and the filling manufacturing work of each layer can be jointly completed by the conventional precision forming head needle and the high-precision forming head needle; (5) layer-by-layer printing is carried out; (6) the working process of the step (4) and the working process of the step (5) are repeated until all printing work is completed, and a workpiece is taken out; (7) aftertreatment is carried out on the taken-out workpiece.

Description

technical field [0001] The invention relates to rapid prototyping technology, in particular to a rapid prototyping method based on double forming heads. Background technique [0002] The basic principle of rapid prototyping is to collect the three-dimensional structure information of related objects according to the hierarchical accumulation method, model the data, and perform layered decomposition to form respective data files by layer, that is, a series of two-dimensional layer data; and then The processing path is reversely established according to different forming processes; finally, a three-dimensional product entity is manufactured layer by layer through a computer-aided manufacturing program (CAD) according to a predetermined processing program. [0003] The precision of rapid prototyping parts refers to the error between the processed part and the original three-dimensional model, mainly including size error, shape error and surface error. Existing rapid prototypin...

AI Technical Summary

Problems solved by technology

This method adopts a double-precision forming head, the high-precision forming head is responsible for the printing and manufacturing of the outer area of ​​the workpiece, and the conventional precision forming head is responsible for the printing and manufacturing of the inner area of ​​the workpiece, which solves the problem that the surface quality of the workpiece and the overall processing efficiency are difficult to balance.

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