scholarly journals Research on Fixture Design of NC Machine Tool Based on UG 3D Modeling

2020 ◽  
Author(s):  
Yanxia Li
Keyword(s):  
Machine Tool ◽  
3D Modeling ◽  
Three Dimensional ◽  
Fixture Design ◽  
Cnc Machine ◽  
Three Dimensional Model ◽  
Nc Machine Tool ◽  
Assembly Drawing ◽  
Nc Machine ◽  
3D Assembly

Research on the design of CNC machine tool fixture based on UG 3D modeling; Firstly, the processing procedure of the back cover parts is analyzed, and the overall scheme of the fixture is determined. Then the three dimensional model of each part of the jig is established including the standard part library of jig and the design of non-standard parts of jig. Then carry on the fixture 3D assembly drawing design; Finally, it is converted into fixture technical document including assembly drawing and specific part drawing. The design process is simple and clear, which improves the quality and efficiency of fixture design.

Dynamic Characteristic Calculation of CNC Machine Tool’s Base Based on FEM

2013 ◽  
Vol 546 ◽  
pp. 20-24
Author(s):  
Xiao Lei Deng ◽  
Jian Chen Wang ◽  
Zhao Zhong Zhou
Keyword(s):  
Machine Tool ◽  
Optimization Design ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Nc Machine Tool ◽  
Structural Improvement ◽  
Nc Machine ◽  
Complete Calculation ◽  
Main Component ◽  
Safety Operation

Base is a main component of CNC machine tool, so its dynamic characteristics impact on machine tool’s machining precision and stability directly. However, the traditional analytic way cannot finish the accurate and complete calculation and analysis. So it is very necessary to make FEM dynamics research on base of machine tool. This paper employs FEM modal analysis to research the free vibration of base which is undamped. And then we can get the nature frequencies of the base’s first six modal, there are 407.79 Hz, 430.47 Hz, 501.23 Hz, 623.63 Hz, 626.51 Hz and 661.19 Hz, respectively. In addition, the first six modal shapes are also obtained. The forth frequency and the fifth frequency are much closed, so they can be considered the multiple roots for the vibration equation. The research results can provide theoretical basis for fault diagnosis，safety operation and vibration control，and the important parameters are useful for structural improvement and optimization design of the NC machine tool．

Goal-Driven Optimization Design of Lathe Bed Based on the Response Surface Method

2013 ◽  
Vol 433-435 ◽  
pp. 2208-2212
Author(s):  
Ming Cong ◽  
Hong Chuan Wang ◽  
Shan Shan Li ◽  
De Sheng Wang
Keyword(s):  
Machine Tool ◽  
Response Surface ◽  
Response Surface Method ◽  
Optimization Design ◽  
Lightweight Design ◽  
Engineering Application ◽  
Cnc Machine ◽  
Nc Machine Tool ◽  
Surface Method ◽  
Nc Machine

In this article, the Lathe Bed of DL20-MST CNC machine tool is taken as the research object. The response surface method and optimization design of goal-driven are introduced. Combining the two methods, the size optimization design method of the Lathe Bed of NC machine tool is put forward based on the ANSYS. The design dimensions which play an important role in the static and dynamic performance of Bed are found through sensitivity analysis. And then, the goal-driven optimization design of the Lathe Bed is carried out based on the response surface method, searching for the optimal dimensions of Lathe Bed, realizing the lightweight design of the Lathe Bed of NC machine tool. In addition, the improvement on the performance of Lathe Bed after optimization is analyzed. The ideas and methods used in this paper offer a good reference for the design and production of the key parts of other similar machine tools, and have a great engineering application value.

NC Machine Tool Control System Design

2013 ◽  
Vol 753-755 ◽  
pp. 1526-1529
Author(s):  
Hong Jun Liu
Keyword(s):  
Control System ◽  
Machine Tool ◽  
Design Method ◽  
High Reliability ◽  
Cnc Machine Tools ◽  
Work Piece ◽  
Cnc Machine ◽  
Nc Machine Tool ◽  
Core Technology ◽  
Nc Machine

To adapt to the CNC machine high precision, high quality, high reliability requirements,This article designed NC machine tool control system with application of Lon-works technology. The hardware design method of input module and sensor interface, output module and the stepper motor interface in the system are introduced. This kind of control system rely on its core technology neural chip that based on Lon-works technology can realize the work-piece precision machining. It can be applied to different types of CNC machine tools and will make up for the deficiency of the traditional NC machine tool by PLC control.

Dynamic Characteristic Analysis of CNC Machine Tool Frame

2011 ◽  
Vol 338 ◽  
pp. 491-494
Author(s):  
Lei Sun ◽  
Ming Hai Wang ◽  
Xiao Peng Li ◽  
Yue Sun
Keyword(s):  
Machine Tool ◽  
Three Dimensional ◽  
Response Analysis ◽  
Cnc Machine ◽  
Three Dimensional Model ◽  
Characteristic Analysis ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Vibration Modal ◽  
Deformation Area

A three-dimensional model of a machine tool frame was established. The modal analysis and harmonic response analysis were done by means of finite element method. Its characteristics of vibration modal were obtained.Then we select one point in the largest deformation area and make the harmonic response analysis. The analysis is conducive to the design of the machine tool frame and it is of great significance for improving the quality of design of machine tools.

Reliability Modeling on Time between Failures of NC Machine Tools

2014 ◽  
Vol 1028 ◽  
pp. 145-150
Author(s):  
Yu Xia Xue ◽  
Wen Xu ◽  
Jun Hong Li
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Optimization Method ◽  
Cnc Machine ◽  
Reliability Modeling ◽  
Nc Machine Tool ◽  
Time Between Failures ◽  
Nc Machine ◽  
Coefficient Optimization ◽  
Nc Machine Tools

A reliability modeling method is proposed based on the time between failures of NC machine tools. According to the field data of the time between failures of a certain type of NC machine tools, parameter estimation of reliability model is made by use of particle swarm optimization (PSO)-based correlation coefficient optimization method, and it is proved that time between failure of CNC machine tool obeyed mathematical model of 3-parameter Weibull distribution via hypothesis testing. This provides the basis for reliability assessment of NC machine tool as well as the development of maintenance strategy in the future. Meanwhile, it also provides a theoretical reference for the reliability prediction of the whole NC machine tool.

Model Research on Special Metal Cutting NC Machine Tool

2007 ◽  
Vol 10-12 ◽  
pp. 806-811
Author(s):  
Tong Zhao ◽  
P.Q. Ye ◽  
H. Zhang ◽  
X.K. Wang
Keyword(s):  
Machine Tool ◽  
Metal Cutting ◽  
Relation Module ◽  
Nc Machine Tool ◽  
Model Research ◽  
Unit Model ◽  
Proposed Model ◽  
Control Research ◽  
Function Unit ◽  
Nc Machine

In this paper the model of special metal cutting NC machine Tool is presented, which consists of a base module, an overall control module, particular functional modules as well as a relation module. Each module involved in aforementioned model will be composed by software, hardware and mechanical parts, so as to combine the convergence of the ideas of modularization and mechanical-electrical integration into current understanding of special NC machine tool through the proposed model. Specially, the relation module is introduced to deal with the linking among all the other modules. The presented model aims to broaden the perspective of machine designers intending to increase the efficiency in machine design. By giving the so-called function unit model a novel modeling approach is delivered to carry out control research of special metal cutting NC machine, which is followed by the formalization description method presented as a possible abstraction methodology towards the efficient description and identification of special metal cutting NC machine tool.

The Coupling Characteristic of HSK Tool-Holder/Spindle Interface for High-Speed NC Machine Tool

2014 ◽  
Vol 590 ◽  
pp. 121-125 ◽  
Author(s):  
Wen Kai Jie ◽  
Jian Chen ◽  
Deng Sheng Zheng ◽  
Gui Cheng Wang
Keyword(s):  
Machine Tool ◽  
Rotational Speed ◽  
High Speed ◽  
Nonlinear Finite Element Method ◽  
High Rotational Speed ◽  
Tool Holder ◽  
Nc Machine Tool ◽  
Machine Tool Accuracy ◽  
Nc Machine ◽  
Coupling Characteristic

The coupling characteristic of the tool-holder/spindle interface in high speed NC machine has significant influence on machine tool accuracy and process stability. With the example of HSK-E63, based on nonlinear finite element method (FEM), the coupling characteristic of the tool-holder/spindle interface under high rotational speed was investigated, the influence of interference, clamping force and rotational speed on the contact stress and the sectional area of clearance were discussed in detail. The results can be used as theoretical consideration to design and optimize the high speed tool-holder/spindle interface.

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