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

An optimization method and technology of thermal influence, applied in design optimization/simulation, computer-aided design, special data processing applications, etc., can solve the problems of large deformation of machine tools, low machining accuracy, and high manufacturing costs, to improve heat dissipation performance, increase Convective heat transfer coefficient, the effect of improving component stiffness

Pending Publication Date: 2021-07-09
XI AN JIAOTONG UNIV
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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 gravi

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

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Embodiment Construction

[0115] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0116] A method for optimizing the structure of a large machine tool under the influence of gravity and heat of the present invention comprises the following steps:

[0117] Step 1. Define and calculate the heat source and heat dissipation boundary of the machine tool;

[0118] Step 2. Use ANSYS finite element software to simulate the deformation of large machine tool parts under the influence of gravity and heat;

[0119] Step 3. According to the finite element simulation results, optimize the structure of large parts with large deformation in the machine tool, such as drilling holes on the side and back of the bed and column, adding ribs, changing the arrangement of ribs, etc.;

[0120] Step 4. Carry out finite element simulation calculation on the deformation of the large machine tool after structural optimization, and verify the correctness and effectiveness of ...

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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...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/17G06F119/08
CPCG06F30/20G06F30/17G06F2119/08
Inventor 李旸侯朝阳张会杰刘辉赵万华张会龙
Owner XI AN JIAOTONG UNIV
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