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Stiffness-measurement-based optimization method for cylindrical grinding process parameters

A technology of process parameter optimization and cylindrical grinding, which is applied in the direction of machine tools designed for grinding the rotating surface of workpieces, parts of grinding machine tools, grinding/polishing equipment, etc. The vibration stability curve is complex, and the grinding accuracy is not considered

Inactive Publication Date: 2013-09-04
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

However, there are two problems in the actual engineering application of this method. One is that the stability curve for determining grinding chatter is relatively complicated, which is not suitable for machine tool operators to master; The constraints of the vibration phenomenon, but failed to consider the factors of grinding accuracy

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  • Stiffness-measurement-based optimization method for cylindrical grinding process parameters
  • Stiffness-measurement-based optimization method for cylindrical grinding process parameters
  • Stiffness-measurement-based optimization method for cylindrical grinding process parameters

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] The cylindrical grinding process parameter optimization method based on stiffness measurement of the present invention, its steps are:

[0023] 1) Pressure sensor installation and machine tool static stiffness measurement

[0024] Such as figure 1 As shown, the installation of the displacement sensor: select the displacement sensor 3 with a measurement resolution of less than 0.1 μm and a protection level of IP65 (waterproof) or above, and install the three displacement sensors 3 on the top of the machine headstock 1, the top of the tailstock 4, and the middle of the workpiece 2 respectively. position, the displacement sensor 3 is used to measure the amount of deformation in the feeding direction of the grinding wheel. The measurement signal is obtained by the computer through the A / D acquisition card.

[0025] Use a hydraulic device to apply ...

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Abstract

The invention relates to a stiffness-measurement-based optimization method for cylindrical grinding process parameters. The method includes: 1, measuring machine tool static stiffness; 2, measuring grinding wheel spindle stiffness to optimize grinding process parameters. The method has the advantages that whether stiffness of a cylindrical grinder headstock, a tailstock center and a grinding wheel carriage system is satisfactory to the given grinding process parameters or not is analyzed; precision of ground workpieces is analyzed under certain grinding process parameters by measuring machine tool static stiffness and grinding wheel spindle stiffness according to a grinding force calculation formula so as to provide basis for the optimization of grinding process parameters.

Description

technical field [0001] The invention relates to a cylindrical grinding process, in particular to a method for optimizing parameters of the cylindrical grinding process. Background technique [0002] Cylindrical grinding is the main method for precision and ultra-precision machining, and the chatter phenomenon caused by unstable grinding during machining is one of the important factors affecting the surface quality of workpieces. For the optimization of cylindrical grinding process parameters, the process parameters in the grinding process are generally determined according to the stability curve of grinding chatter, so that the grinding process can be completed with the highest efficiency without chatter chatter. cutting task. However, there are two problems in the actual engineering application of this method. One is that the stability curve for determining grinding chatter is relatively complicated, which is not suitable for machine tool operators to master; The constrai...

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Application Information

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IPC IPC(8): B24B5/04B24B49/00G01N3/08
Inventor 李郝林迟玉伦
Owner UNIV OF SHANGHAI FOR SCI & TECH
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