MBD-based welding process modeling and process design method and system

Abstract

The invention belongs to the technical field of digital processes, and provides a MBD-based welding process modeling and process design method and system, and the system comprises a welding process model based on MBD and a welding process modeling system based on MBD. The MBD-based welding process model realizes consistent expression, storage and management of welding services, and the MBD-based welding process modeling system realizes specific PBOM establishment, welding model definition, visual interaction and output; and rapid addition, deletion, modification and check and visual interaction of the three-dimensional welding process model can be achieved, inheritance and application expansion of the MBD model from design to process are achieved, and a welding feature construction and expression method based on a lightweight model is provided in the field of welding process design application.

Description

technical field [0001] The invention belongs to the technical field of digital technology, and in particular relates to an MBD-based welding process modeling and process design method and system. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the welding process design adopts a two-dimensional model, mainly relying on the paper welding process and the process design method marked on the design drawing. [0004] The defect of the existing technology is: the current welding process design adopts a two-dimensional model, and the process design is completely dependent on the paper two-dimensional diagram that uniquely expresses the design intention. A lot of energy of craftsmen was wasted in the mutual conversion of expression modes, and ambiguity and deviation inevitably appeared. The formed process lacks verification, and the ...

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Problems solved by technology

[0004] The defect of the existing technology is: the current welding process design adopts a two-dimensional model, and the process design is completely dependent on the paper two-dimensional diagram that uniquely expresses the design intention. A lot of energy of craftsmen is wasted in the mutual conversion of expression modes, and ambiguity and deviation inevitably appear

[0005] 1) At present, the domestic three-dimensional welding process design is still in the exploratory stage

[0006] 2) During the process design process, the 3D model issued by the design department cannot be directly used to carry out process design

[0007] 3) poor consistency

During process design, it is necessary to convert the 3D model into a 2D graph, resulting in non-unique data sources, which cannot be associated with the product design model

And when the same product is compiled by different technicians, different plans will be obtained, which lacks consistency, and it is difficult to fully and correctly consider the welding process in the initial stage of product design, and the feedback and modification of welding process problems are slow and difficult to achieve

[0008] 4) The process design and process simulation are disconnected, the simulation parameters and process design parameters cannot be automatically transferred, and the workload of repetitive labor is large

[0009] 5) The visual expression of the process cannot be realized, and the operability and ease of welding cannot be evaluated, which brings inconvenience to production

[0010] 6) The rationality of the process can only be verified by the actual welding operation, but there is no means of evaluating whether the process has reached the optimum

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