Machine tool large part structure optimization method considering gravity and heat influence

Abstract

The invention discloses a machine tool large part structure optimization method considering gravity and heat influence. The method comprises the following steps: (1) determining a heat source and a heat dissipation boundary of a machine tool; (2) according to the heat source and the heat dissipation boundary of the machine tool, performing simulation calculation on deformation of the machine tool large piece under the influence of gravity and heat; and (3) according to a thermal deformation simulation calculation result of the machine tool large part, carrying out structure optimization on the machine tool large part. On the basis of a traditional machine tool structure design method, the machine tool large part structure optimization method considering the gravity and heat influences is provided, simulation calculation is carried out on deformation of the machine tool large part under the gravity and heat influences, weak links are obtained through analysis, structure optimization is carried out, therefore, the structural optimization of key parts of the tool body is more targeted.

Description

technical field [0001] The invention belongs to the field of machine tool structure optimization, and in particular relates to a method for optimizing the structure of a large machine tool under the influence of gravity and heat. Background technique [0002] In recent years, with the development of industry, the manufacturing industry has higher and higher requirements for processing. Not only hope to improve efficiency, but also pay more attention to machining accuracy. my country's machine tools generally have problems such as redundant bed weight and low machining accuracy. Overall, they are large but not strong. In terms of design ideas, there is still a considerable gap between my country's machine tools and the top foreign countries. Foreign design ideas have systematic design steps for the composition and closed loops of machine tool components. However, my country's overall design methods are relatively backward, and structural design is often based on Based on exp...

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Problems solved by technology

[0004] In order to solve the common problems of existing machine tools, such as weight redundancy, high manufacturing cost, and low machining accuracy caused by large deformation of the machine tool during operation, the purpose of the present invention is to propose a large-scale structural optimization of the machine tool under the influence of gravity and heat. method, reducing the weight of the bed and column, and improving its heat dissipation conditions can significantly reduce the deformation of the machine tool during operation, which is of great significance for improving the performance of the machine tool, reducing manufacturing costs, and improving the machining accuracy of the workpiece

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