An experimental device for comprehensive testing of mechanical spindle system thermal analysis
An experimental device, comprehensive testing technology, applied in the direction of mechanical bearing testing, etc., to achieve the effect of compact structure and simple operation
Inactive Publication Date: 2016-06-15
TSINGHUA UNIV
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At present, there is no experimental platform that can comprehensively consider these factors and complete the measurement
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[0018] The purpose of the present invention is to provide a mechanical spindle system thermal analysis comprehensive test experimental device. The mechanical spindle system thermal analysis comprehensive test experimental device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] Such as figure 1 The schematic diagram of the overall structure of the comprehensive test experimental device and figure 2 A half-sectional view of the main structure of the mechanical spindle shown. In the figure, the thermal analysis comprehensive test experimental device of the mechanical spindle system includes the main structure of the mechanical spindle, the cutting load simulation loading mechanism and the measurement system; On the motor support base 2, the servo motor 3 is connected with the mechanical main shaft 5 through the coupling 4, and drives the mechanical main shaft 5 to realize the rotation mov...
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The invention belongs to the technical field of machine manufacturing, and discloses a mechanical main shaft system thermal analysis comprehensive test experimental facility. The comprehensive test experimental facility comprises a mechanical main shaft main structure, a cutting load simulation loading mechanism and a measuring system; a bottom board is provided with a motor supporting base, a servo motor is fixed on the motor supporting base, the servo motor is connected with a mechanical main shaft through a coupler, and the measuring system is used for temperature measuring, thermal deformation measuring and bearing pretightening force measuring. Temperature sensor signals, displacement sensor signals and strain gage signals are synchronously collected through a data collecting card, and temperature, thermal deformation and bearing pretightening force conditions of key points in the mechanical main shaft are measured. The comprehensive test experimental facility is compact in structure. Compared with an existing correlational research device, according to the comprehensive test experimental facility, the situations that a main shaft terminal has thermal drifting under a locating pretightening form and a box shifts relative to a movable shaft sleeve under a constant-pressure pretightening form are considered, switching of locating pretightening and constant-pressure pretightening is completed on one experimental facility, and operation is simple and convenient.
Description
technical field [0001] The invention belongs to the technical field of mechanical manufacturing, in particular to an experimental device for thermal analysis comprehensive testing of a mechanical spindle system. Background technique [0002] Machine tools, also known as "working machines", are the basic equipment for machining. The machine tool industry is the basic industry for the development of a country, and the development level of a country's machine tool industry marks the level of a country's industrialization to a certain extent. High-end CNC machine tools are the basic manufacturing equipment at the national strategic level. With the gradual upgrading of the machine tool industry, people put forward higher requirements for the machining accuracy and precision retention of machine tools. In the total error of the machine tool, the thermal error occupies a large proportion. Foreign researchers believe that manufacturing errors caused by thermal deformation account...
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IPC IPC(8): G01M13/04
Inventor 王立平王海同李逢春李铁民
Owner TSINGHUA UNIV