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 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.

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

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

Analysis on Dynamic Characteristics of CNC Machine Tool and Experiment with Influence of Rolling Guide Joint Considered

2012 ◽  
Vol 443-444 ◽  
pp. 745-750 ◽  
Author(s):  
Xiao Peng Li ◽  
Hui Fan Nie
Keyword(s):  
Finite Element ◽  
Machine Tool ◽  
Dynamic Characteristics ◽  
Natural Frequencies ◽  
Great Influence ◽  
Element Model ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Rolling Guide ◽  
Vibration Modal

The 3D finite element model of CAKxxx CNC machine tool is established and the static/dynamic characteristics of the machine tool are analyzed with finite element method when the influence of the linear rolling guide (LRG) joint is considered or neglected. The lowest five natural frequencies and vibration modal shapes are obtained in both cases. It shows that when considering the influence of the LRG joint, each of the lowest five natural frequencies is 14 Hz smaller than the results of neglecting the influence, and the vibration modal shapes are more stable. The modal experiment shows that the results of considering the influence of the LRG joint are closer to the actual situation. It also proves that LRG joint has great influence on the dynamic characteristic of the machine tool. It provides an important reference for accurate modeling and dynamic design of machine tool.

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