Engraving method of closed-loop control over water milling cutter by applying 3D digital model

Abstract

The invention discloses an engraving method of closed-loop control over a water milling cutter by applying a 3D digital model. Firstly, the 3D digital model of a product is established by adopting CAD (Computer Aided Design) software in an upper computer, then a water cutter is controlled to realize the function of a milling cutter so as to engrave and process to-be-processed materials, the processing schedule and effect are detected by applying a 3D scanner, and the speed and moving direction of the water cutter are controlled according to data feedback detected by the 3D scanner. According to the engraving method, a 3D digital modeling technique, a 3D scanning technique, a cutting technique of the water cutter and a control technique of a manipulator are organically integrated and are applied to engraving and processing metal and nonmetal. The engraving method has the advantages that complex special-shaped workpieces and molds can be accurately, quickly and directly manufactured, a large quantity of manpower and materials are saved, the effects of good safety, environmental friendliness and low cost are achieved, and environmental pollutants such as waste water, dust, smoke and the like are not generated.

Description

technical field [0001] The invention relates to a processing method for complex special-shaped parts, in particular to an engraving method using a 3D digital model for closed-loop control of a water milling cutter. Background technique [0002] At present, the existing 3D printing technology can only use a single thermoplastic material to print out the model, and cannot directly print the workpiece for practical application. Due to limited processing materials and open-loop control, 3D printing cannot detect the printing effect and can only rely on manual visual inspection. [0003] According to the different physical and chemical properties of various materials, the processing of practical and complex special-shaped workpieces adopts corresponding physical and chemical processing methods, such as: 1. Soft materials such as wood and stone are processed by metalworking milling cutters or grinding heads; 2. At present, the carving of stone and jade artworks mainly relies on m...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing 3D printing technology can only use a single thermoplastic material to print out the model, and cannot directly print the workpiece for practical application

Limited by processing materials and open-loop control, 3D printing cannot detect the printing effect and can only rely on manual visual inspection

[0003] According to the different physical and chemical properties of various materials, the processing of practical and complex special-shaped workpieces adopts corresponding physical and chemical processing methods, such as: 1. Soft materials such as wood and stone are processed by metalworking milling cutters or grinding heads; 2. At present, the carving of stone and jade artworks mainly relies on manual carving and chiseling to assist with hand-held electric tools, which not only has poor molding effect, low efficiency, high scrap rate, high labor cost, many human factors, long production cycle, time-consuming and labor-intensive, and dust pollution. Serious, and it is impossible to complete high-standard copy processing; 3. High-hardness steel molds are generally processed by electric spark erosion. Although the electric erosion method has the advantages of high engraving precision and high degree of automation, there is also a limited amount of electric erosion , Difficult to scale up, high power consumption, low production efficiency, high cost, discharge of toxic waste water and dust, and poor environmental protection

[0004] The processing of irregular parts of high-standard complex special-shaped parts mainly relies on manual and some precision CNC machine tools to complete multiple processing procedures, and can only achieve open-loop control. Precision CNC machine tools have many processes and need to change a variety of tools. Some Irregular and special-shaped surfaces still cannot be processed, and need to be polished manually

The above manual processing is limited by the technical level of the workers, the yield of finished products cannot be guaranteed, the efficiency is low, and the cost of labor intensity is high.

The processing part of the CNC machine tool is controlled by open loop, the equipment cannot detect the forming effect of the workpiece, and manual monitoring is still required

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