A method for adding process margin

Abstract

The invention relates to a technical allowance adding method. According to the method, firstly, a product is subjected to three-dimensional modeling; then, an NC1 file of a corresponding part is exported; next, the NC1 file is imported into a technical allowance adding system; the technical allowance of the part is added; finally, the part completing the technical allowance addition is exported to obtain an NC1 file and a DXF file with the technical allowance; the composing trepanning is performed through composing trepanning software. The method has the advantages that the traditional manual modification is converted into system modification by the technical allowance adding method; for the system modification, the technical allowance adding system is mainly used for modifying the NC1 file of the part to change the shape and the dimension of the part, so that the technical allowance addition is realized; meanwhile, the technical allowance adding system can record all operations for adding the technical allowance to the part in the item; the query performance, the remodification performance and the repeated utilization functions of the technical allowance can be realized. The method has the advantages that the workload is reduced; the work efficiency is improved.

Description

technical field [0001] The invention relates to a method for adding a process allowance, which belongs to the application of NC1 files in the addition of a steel structure process allowance. Background technique [0002] When nesting the steel plate, compared with the design size of the part, it is necessary to leave an appropriate process margin. At present, the traditional method is to manually modify the design drawings of the parts to add process allowances. This method requires too much manpower and man-hours for the secondary drawing work before typesetting, and it is mainly added by manually modifying the design drawings of the parts. Process margin, troublesome operation, low efficiency, and the addition of process margin needs to wait for the design drawings to be completed, which will affect the typesetting nesting and steel procurement, thereby affecting material utilization and project progress; using CAD drawings for typesetting nesting , It is necessary to man...

AI Technical Summary

Problems solved by technology

At present, the traditional method is to manually modify the design drawings of the parts to add process allowances. This method requires too much manpower and man-hours for the secondary drawing work before typesetting, and it is mainly added by manually modifying the design drawings of the parts. Process margin, troublesome operation, low efficiency, and the addition of process margin needs to wait for the design drawings to be completed, which will affect the typesetting nesting and steel procurement, thereby affecting material utilization and project progress; using CAD drawings for typesetting nesting , it is necessary to manually collect and organize the material, quantity, plate thickness and other information of the parts, the workload is heavy, the efficiency is low, and error-prone

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