scholarly journals Optimization Design of Cross Beam Structure of Gantry Heavy Duty CNC Machine Tool

2018 ◽  
Author(s):  
Tao WU ◽  
Li-gang CAI
Keyword(s):  
Machine Tool ◽  
Optimization Design ◽  
Cnc Machine Tool ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Beam Structure

scholarly journals Design and Analysis of a 5-Axis Gantry CNC Machine Tool

2020 ◽  
Vol 318 ◽  
pp. 01019
Author(s):  
Esra Yuksel ◽  
Emre Özlü ◽  
Ahmet Oral ◽  
Fulya Tosun ◽  
Osman Fatih İğrek ◽  
...  
Keyword(s):  
Machine Tool ◽  
Structural Dynamics ◽  
Critical Points ◽  
Fe Analysis ◽  
Cnc Machine Tool ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Velocity Measurements ◽  
Final Performance ◽  
Measurement Results

In this study, design and analysis of a gantry-type 5-axis CNC machine tool is presented with experimental results on a manufactured prototype. Critical points in the design of a large-scaled and heavy-duty machine tool is discussed. Moreover, FE analysis results is also presented with detailed discussion. The measurement results on structural dynamics is shown together with the FE results. Furthermore, the final performance of the machine tool is demonstrated thorough position and velocity measurements of the axes.

Dynamic Characteristics of Guideway Joints for CNC Machine Tool

2011 ◽  
Vol 80-81 ◽  
pp. 1051-1054
Author(s):  
Chun Xia Zhu ◽  
Bin Li ◽  
Ji Man Luo
Keyword(s):  
Machine Tool ◽  
Dynamic Characteristics ◽  
Optimization Design ◽  
Joint Stiffness ◽  
Element Model ◽  
Cnc Machine Tool ◽  
Regular Pattern ◽  
Cnc Machine ◽  
Harmonic Response ◽  
The Finite Element Model

In order to analyze accurately the dynamic characteristics of guideway joints of CNC, the finite element model(FEM) of guideway joints of CNC is built in ANASYS software, which that springs and damping units imitate guideway joints in this paper. The proposed method can predict the regular pattern which joint stiffness and joint span affect natural frequency and harmonic response. The research demonstrates that the method predicts well the dynamic characteristics of the guideway joints of CNC; therefore, it can be a reference for dynamic optimization design of guideway joints of CNC machine tool.

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．

Deformation Analysis for Hydrostatic Rotary Table of Heavy Duty CNC Machine Tool

2013 ◽  
Vol 457-458 ◽  
pp. 335-339 ◽  
Author(s):  
Xiang Min Dong ◽  
Li Gang Cai ◽  
Yong Sheng Zhao ◽  
Xiao Shi
Keyword(s):  
Machine Tool ◽  
Large Diameter ◽  
Great Influence ◽  
Theory Of Elasticity ◽  
Deformation Analysis ◽  
Cnc Machine Tool ◽  
Rotary Table ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Closed Type

The deformation of constant flow and closed type hydrostatic rotary table of heavy duty CNC machine tool has a great influence on the film thickness because of its large diameter, high load-bearing. According to the circular plate deformation theory of elasticity, differential equations of worktable deformation are derived in the simply supported conditions when bearing uniform force of different locations. Displacement curves of worktable are obtained. Force and deformation weaknesses of hydrostatic rotary table are found, which can provide theory basis for supporting location of heavy workpiece machining and whether oil film is failure or not.

scholarly journals Actualities and Development of Heavy-Duty CNC Machine Tool Thermal Error Monitoring Technology

2017 ◽  
Vol 30 (5) ◽  
pp. 1262-1281 ◽  
Author(s):  
Zu-De Zhou ◽  
Lin Gui ◽  
Yue-Gang Tan ◽  
Ming-Yao Liu ◽  
Yi Liu ◽  
...  
Keyword(s):  
Machine Tool ◽  
Thermal Error ◽  
Error Monitoring ◽  
Cnc Machine Tool ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Monitoring Technology

Study on Dynamic Characters of Interaction Effect of Precision Machine Tool-Box Foundation-Soil

2014 ◽  
Vol 496-500 ◽  
pp. 1088-1091 ◽  
Author(s):  
Dan Yi ◽  
Yue Ning ◽  
Yang Tian ◽  
Zhi Feng Liu
Keyword(s):  
Machine Tool ◽  
Optimization Design ◽  
Theoretical Foundation ◽  
Lagrange Equation ◽  
Design System ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Foundation Soil ◽  
Soil System ◽  
Dynamic Precision

The application of Lagrange equation to establish the dynamic precision CNC machine tool-box foundation - soil system model. By applying the boundary conditions. Analyzed the dynamic of three different soil system under the action of impact response, Laid the theoretical foundation for the optimization design system.

scholarly journals An innovative cutter spindle feed mode used for heavy-duty spiral bevel gear CNC machine tool

2018 ◽  
Vol 4 (6) ◽  
pp. 434-441
Author(s):  
Yanwei XU ◽  
Aijun XU ◽  
Lihai CHEN ◽  
Menghui Chen ◽  
Xianfen Li
Keyword(s):  
Machine Tool ◽  
Bevel Gear ◽  
Spiral Bevel Gear ◽  
Cnc Machine Tool ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Feed Mode ◽  
Spiral Bevel
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