Yu Mei Song

Application of Go-Flow Methodology to the Reliability Evaluation in CNC Machine Tools

Basic principle and methods of Go-Flow methodology have been introduced. In light of the characteristics and analysis demands for CNC machine tools, methods and procedures to evaluate the reliability of CNC machine tools have been put forward.

Application of Reliability Prediction in the Design of CNC Machine Tools

Reliability analysis methods of reliability prediction have been simply introduced in the paper. In the light of the CNC machine tools, we can design and direct and find the poor reliability parts. Relevant promotion will be carried out to increase the reliability of the CNC machine tools.

Research of Reliability Growth Evaluation of CNC Machine Tools Based on Weibull Distribution

In light of the characteristics and small samples of the research of the CNC machine tools based on Weibull distributions，dynamic modeling and middle rank are used to evaluate the failure rate of each test phase. Traditional Duane model are referred to fit parameters of the reliability growth model with least squares.

Using MATLAB to Establish the Physical Simulation of the Milling Force and Surface Roughness

NC milling plays an important role in machining. With the continuous development of modern manufacturing technology, carrying out a series of in-depth study of NC milling physical simulation is necessary. On the one hand, we performed a GUI of physical simulation with MATLAB to obtain the forecasting values of milling force and surface roughness when specified parameter is input, on the other hand, according to the forecasting values, the chosen parameter value can be adjusted appropriately. Thus, bi-direction optimized selection is achieved.

Comparison of Curved Surface Part Finishing Simulation Based on CAXA

Choosing five kinds of curved surface finishing methods is commonly used in CAXA and processing compared to the same curved surface parts, on the premise of making the parts same residual height and exploring their selection principle.

Optimal Control of Curved Surface Roughness in NC Milling Based on CAXA Finishing Methods

Through CAXA finishing methods, based on the geometric factors of the formation of surface roughness, this article proposes optimization control strategies of curved surface roughness. The study was focused on the optimal selection in curved surface processing methods, row spacing, milling cutters, feed and cutting speed. The experiment verified that the developed optimization control strategies were feasible.

Lifting Chuck Design Based on Fuzzy Expert System

The permanent magnet lifting chuck has been designed. The working principle was proposed. The fuzzy expert system of lifting chuck magnetic circuit was developed. Meanwhile, the perfect self-acting driving system has been invented. Industry prototypes were manufactured, and they verified that the designed lifting permanent magnetic chuck was feasible.

FEM-Based Lifting Permanent Magnetic Chuck Design

The optimal saving energy permanent magnet lifting chuck has been designed. Working principle of this technology is introduced. Magnetic circuit design is carried out by finite element method (FEM). At the same time, a perfect self-acting driving system has been invented for picking and releasing loads fast and conveniently without using any electricity at all. Industry prototype was manufactured, and it verified that the proposed lifting permanent magnetic chuck was feasible.

The Application of the Improved Bootstrap Method in the Verification of Maintainability Indicators of CNC Machine Tools

Bootstrap Method is commonly used in statistical inference and is convenient and practical in data processing. The paper puts forward an improved Bootstrap method which expands the range of resampling procedure to verify the maintenance indicators with a few test samples.

Driving System Design of Lifting Permanent Magnet

Based on our proposed superposition principle of the magnetic field, the drive system of parallel moving type and rotation moving type lifting permanent magnet were designed. Industry prototypes were manufactured, respectively, and they verify that the designed lifting permanent magnets are feasible.