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Three-directional static rigidity synchronous testing system for machine tool

A technology of static stiffness and machine tool, applied in the field of static stiffness detection based on the test system, machine tool three-dimensional static stiffness synchronous test system, can solve the problems of low test efficiency and need manual completion, and achieve high test efficiency, convenient operation, Wide range of effects

Inactive Publication Date: 2013-08-21
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In addition, when testing the static stiffness of machine tools at present, data recording and processing need to be completed manually, and the test efficiency is low.

Method used

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  • Three-directional static rigidity synchronous testing system for machine tool
  • Three-directional static rigidity synchronous testing system for machine tool
  • Three-directional static rigidity synchronous testing system for machine tool

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Embodiment Construction

[0027] The machine tool three-way static stiffness synchronous testing system and its static stiffness testing method that the present invention proposes are described in detail as follows in conjunction with accompanying drawing and embodiment:

[0028] The overall structure of the embodiment of the machine tool three-way static stiffness synchronous testing system is as follows: figure 1 As shown, it is mainly composed of four parts: the load measurement subsystem, the three-way dynamometer 2, the displacement measurement subsystem and the data processor 7, wherein the input end of the three-way dynamometer 2 and the displacement measurement subsystem is connected to the machine tool spindle Connected, the output end of the three-way accelerometer 2 is connected with the input end of the load measurement subsystem, and the output end of the displacement measurement subsystem and the load measurement subsystem is connected with the input end of the data processor 7:

[0029] ...

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Abstract

The invention relates to a three-directional static rigidity synchronous testing system for a machine tool, and belongs to the technical field of static rigidity detection of the machine tool. The system comprises a load measuring subsystem, a three-directional stressing device, a displacement measuring subsystem and a data processor. The input end of the three-directional stressing device and the input end of the displacement measuring subsystem are connected with a main shaft of the machine tool, the output end of the three-directional stressing device is connected with the input end of the load measuring subsystem, and the output end of the displacement measuring subsystem and the output end of the load measuring subsystem are connected with the input end of the data processor. The testing system can apply load which is at certain angles with the X-axis, the Y-axis and the Z-axis of a machine tool coordinate system, and can measure continuously changing data of the load and deformation of the machine tool along three directions at the same time. After the data are processed by data processing programs, a continuously changing curve of nine Kig components in a 3*3 order static rigidity matrix can be obtained.

Description

technical field [0001] The invention belongs to the technical field of static stiffness detection of machine tools, and in particular relates to a three-way static stiffness synchronous testing system of a machine tool under the condition of simulated loading in the working space of a complete machine tool, and also relates to a static stiffness testing method based on the testing system. Background technique [0002] The static stiffness of the machine tool has a great influence on the machining accuracy and surface quality of the machine tool, and it is one of the important indicators for evaluating the performance of the machine tool. Through the test of the static stiffness of the machine tool, the weak link in the performance of the machine tool can be identified, and then the machining process plan of the machine tool can be formulated in a targeted manner, or the machine tool can be optimized to improve the machining accuracy of the machine tool. [0003] At present, ...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 冯平法张建富李殿新郁鼎文吴志军
Owner TSINGHUA UNIV
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