Part machining pose optimization method and system

A technology of parts processing and optimization method, which is applied in the field of CNC machine tools, can solve the problems of unfavorable parts processing accuracy, improvement, and optimization constraints, and achieve the effects of reducing time, improving optimization speed, and reducing quantity

CN106200554AInactive Publication Date: 2016-12-07GUANGDONG UNIV OF TECH
8 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-12-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a part machining pose optimization method. The method comprises the steps that an objective function taking machining errors of an objective part in a numerically-controlled machine tool as an optimization objective is constructed; a machining position error formula and a machining pose error formula of the objective part are established; the machining position error formula and the machining pose error formula are integrated to obtain an initial part machining error constraint function; the initial part machining error constraint function is converted into a global aggregate function through an aggregate function method; constraint conditions used for constraining the objective function are constructed through the aggregate function; optimization processing is conducted on the objective function through a genetic algorithm under constraint of the constraint conditions; the machining pose state of the current objective part is correspondingly optimized and adjusted according to part machining pose optimization information. According to the part machining pose optimization method, the part machining pose optimization speed is increased. The invention further correspondingly discloses a part machining pose optimization system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of numerical control machine tools, in particular to a method and system for optimizing the pose and posture of part processing. Background technique

[0002] At present, CNC machine tools play a very important role in the manufacturing industry. They can better solve complex, precise, small-batch, and multi-variety parts processing problems, and are an important foundation for the national economy.

[0003] Parts processing accuracy is a key indicator to measure the performance of CNC machine tools. At present, mathematical optimization algorithms can be used to optimize the machining pose of parts on CNC machine tools, thereby improving the machining accuracy of parts on CNC machine tools. However, there are many optimization constraints involved in the existing mathematical optimization algorithms, which lead to a low optimization speed of the part processing pose, which is not conducive to the improveme...

Examples

Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] The embodiment of the present invention discloses a method for optimizing the pose and posture of parts processing, see figure 1 As shown, the method includes:

[0062] Step S11: Construct an objective function with the machining error of the target part in the CNC machine tool as the optimization objective.

[0063] It can be understood that the above-mentioned target parts are the parts on the CNC machine tool that currently need to be processed for ...