Method and system for selecting cutting parameters based on machining features and automatically setting parameters

Abstract

The invention discloses a method and a system for selecting cutting parameters and automatically setting parameters based on machining features. The method includes the steps: classifying typical machining features of workpieces; simulating cutting processes of the machining features to obtain the cutting temperature corresponding to the abrasion rate of a minimum cutter; fitting out relationships among the cutting temperature, the cutting parameters and machining feature parameters to obtain cutting speed computation formulas at the cutting temperature with the minimum cutter abrasion rate; storing cutting parameter computation formulas corresponding to different machining features into a cutting parameter recommendation system to serve as bottom data; integrating the cutting parameter recommendation system into numerical control programming software, and calling the cutting parameter recommendation system in the numerical control programming software to set the parameters. Cutting data are obtained by simulation according to different machining features of workpiece materials and geometric parameters, cutter materials and geometric parameters and other process requirements, have pertinence and are high in applicability.

Description

technical field [0001] The invention relates to the technical field of automatic cutting processing, in particular to a method and system for selecting cutting amount based on processing characteristics and automatically setting process parameters in numerical control programming. Background technique [0002] Reasonable selection of cutting amount is of great significance to improving product quality, processing efficiency and prolonging tool life. The cutting database technology can effectively manage the cutting data, and store the cutting data in the form of a database system. The user can query by inputting the actual process conditions and processing requirements, obtain the data, and then perform NC programming to set the cutting parameters. In terms of underlying data and top-level system structure, existing technologies have some deficiencies, such as: [0003] (1) The data of the cutting database generally come from the production experience of the workshop, the c...

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Problems solved by technology

Therefore, for the traditional database system, the static storage method makes the database system not universal and flexible enough. The change of process conditions means that new data needs to be added, and the database system needs to store a large amount of data.

[0005] (3) The existing database system is often isolated from the NC programming software. Programmers need to input multiple process conditions in the database system to query the cutting amount. After querying the cutting amount, they enter the programming software to input the NC process parameters. The whole process is cumbersome , the work efficiency is low, and it is easy to input wrong information due to the negligence of programmers

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