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An experimental method for verifying the bearing capacity of heavy machine tool foundations

A technology of foundation bearing capacity and experimental method, which is applied in the field of heavy machine tool foundation bearing capacity experiment, can solve the problems of experiment, no heavy machine tool foundation bearing capacity, etc., and achieves the effect of low cost, accurate and effective implementation effect, and cost saving.

Active Publication Date: 2015-12-09
BEIJING UNIV OF TECH
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Problems solved by technology

[0003] The current soil box experiments mainly study the bearing capacity of building foundations and the impact of seismic waves on foundations and foundations. There is no experiment on the bearing capacity of heavy-duty machine tools. Because heavy-duty machine tools are heavy and require high precision, they have more impact on the bearing capacity of the foundation. Therefore, it is very necessary to conduct experiments on the bearing capacity of heavy machine tool foundations

Method used

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  • An experimental method for verifying the bearing capacity of heavy machine tool foundations
  • An experimental method for verifying the bearing capacity of heavy machine tool foundations
  • An experimental method for verifying the bearing capacity of heavy machine tool foundations

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Embodiment Construction

[0028] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0029] The implementation process of the present invention will be analyzed in detail below by taking the heavy-duty gantry machine tool as an example.

[0030] 1 Determine the size of the model box

[0031] The size of the model box is comprehensively considered according to the size of the experimental site, experimental equipment, convenience of experimental operation and experimental cost. Generally, the height of the model box is not higher than 1.5 meters, and the length and width are controlled at 1 to 3 meters. In order to save costs, the interior of the model box structure A steel frame is built outside the wooden board, and a layer of phenolic foam board is wrapped outside the steel frame structure to isolate the influence of external factors on the model box. The layout of the steel frame is as follows: figure 2 As shown, the thickne...

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Abstract

The invention relates to an experimental method for verifying bearing capacity of a foundation of a heavy machine tool. The method comprises the following steps: determining the dimension of a model case, determining the texture and ratio of similitude of the model, constructing a bedstand, applying loads, and determining and analyzing data; and after the load test, fitting analysis graphics such as a basic deformation graphic in a differential settlement experimental period, an excursion graphic of a tool nose point position of the machine tool, a curve of internal stress change of a cross of a machine tool model by Matlab for experimental data. The method provided by the invention is reasonable and efficient and does not comprise unnecessary operations, and has a very high efficiency.

Description

technical field [0001] The invention belongs to the technical field of heavy-duty machine tool foundation experiments, in particular to a method for testing the foundation bearing capacity of heavy-duty machine tools. Background technique [0002] Heavy-duty machine tools have been widely used in my country's machinery, aerospace, national defense, energy and other fields, and are representative products of my country's equipment manufacturing industry. However, one of the main problems currently existing in domestic heavy-duty machine tools is that due to the large size and mass of heavy-duty machine tools, the foundation is difficult to meet the load-bearing requirements of the machine tool, which greatly affects the accuracy of the machine tool. To study the bearing capacity of the machine tool foundation, it is necessary to establish the model of the machine tool and the foundation, and then conduct a large number of experiments using soil box experiments. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
Inventor 刘志峰张柯王建华杨恩芝宁越蔡力钢
Owner BEIJING UNIV OF TECH
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