Additive and subtractive composite manufacturing process equipment

Abstract

The invention relates to the technical field of precision machine manufacturing, in particular to additive and subtractive composite manufacturing process equipment which comprises a protective cover,a subtractive device and a support. The subtractive device and the support are arranged in the protective cover, and the subtractive device is provided with an electric spindle with X, Y and Z degrees of freedom and a laser galvanometer with X degrees of freedom. A powder spreading device, a powder supply box and a forming box are arranged on the support, the powder spreading device is provided with a powder spreading panel and a movable scraper, a powder supply port and a forming port are formed in the powder spreading panel, the powder supply box is arranged on the lower side of the powdersupply port, a liftable powder supply piston is arranged in the powder supply box, and the forming box is arranged on the lower side of the forming port. A liftable forming piston is arranged in the forming box, a powder supply moving mechanism is arranged in the support, and the powder supply box is driven by the powder supply moving mechanism to move between the powder supply port and a powder supplementing port. The equipment is reasonable in space layout, good in sealing performance, accurate in powder supply and capable of achieving online detection, the machining quality and precision are guaranteed, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of precision machinery manufacturing, in particular to a compound manufacturing process equipment of adding and subtracting materials. Background technique [0002] The precision manufacturing of complex parts is an urgent problem to be solved in my country's aviation, aerospace, precision mold and other industries. Taking mold parts with internal cooling channels as an example, not only must the shape accuracy of the cavity and flow channels be guaranteed, but also high requirements are placed on the surface quality of the mold cavity and flow channels. The traditional manufacturing method is For milling of the entire blank, the complex cavity is generally processed by a five-axis machine tool, which has high equipment costs, a large amount of material removal, and a large amount of cutting fluid is used during the processing, which is not conducive to environmental protection. Another manufacturing method ...

AI Technical Summary

Problems solved by technology

Taking mold parts with internal cooling channels as an example, not only must the shape accuracy of the cavity and flow channels be guaranteed, but also high requirements are placed on the surface quality of the mold cavity and flow channels. The traditional manufacturing method is For milling of the entire blank, the complex cavity is generally processed by a five-axis machine tool, which has high equipment costs, a large amount of material removal, and a large amount of cutting fluid is used during the processing, which is not conducive to environmental protection. Another manufacturing method is to use Additive manufacturing methods, such as laser selective melting (SLM), melt metal powder layer by layer in selected areas. The shape accuracy of parts manufactured by laser selective melting can be as high as 0.1mm, but the surface roughness is not ideal. Mold parts manufactured by this method often require post-processing such as milling and polishing on specific surfaces, and the parts need to be clamped again, resulting in accuracy errors and time costs

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