Modal analysis and harmonic response of machine tool spindle

2022 ◽  
Author(s):  
Akshay Bhatkoorse ◽  
G. U. Raju
Keyword(s):  
Machine Tool ◽  
Modal Analysis ◽  
Harmonic Response ◽  
Machine Tool Spindle

Dynamic Analysis and Optimization of Machine Tool in Consideration of Joint Parameters

2011 ◽  
Vol 697-698 ◽  
pp. 320-325
Author(s):  
C. Xu ◽  
Z.J. Wu ◽  
J.F. Zhang ◽  
P.F. Feng ◽  
D.W. Yu
Keyword(s):  
Machine Tool ◽  
Dynamic Analysis ◽  
Modal Analysis ◽  
Dynamic Characteristic ◽  
Dynamic Model ◽  
Optimization Design ◽  
Model Simulation ◽  
Harmonic Response ◽  
Machining Center ◽  
Joint Parameters

This paper provides the methodology on analyzing the dynamic characteristic of machine tool in consideration of joint parameters. To ensure the dynamic model is available for further study, modal experiment for vertical machining center is involved. The machine tool is divided into several parts and connected with spring and damping for substructure modeling. Particularly, the bolt-fixed joint is an example for the joints modeling. Based on the dynamic model, simulation of modal analysis and harmonic response are carried out. Besides, method of optimization design of column and milling box is given to improve the performance, which is proved to be feasible in harmonic response.

Dynamic Analysis and Experimental Research of Laser Cutting Machines

2014 ◽  
Vol 915-916 ◽  
pp. 31-34
Author(s):  
Qing Ping Zhang ◽  
Zheng Ru Wang ◽  
Yan Fang Wang
Keyword(s):  
Machine Tool ◽  
Modal Analysis ◽  
Laser Cutting ◽  
Machining Accuracy ◽  
Dynamics Analysis ◽  
Theoretical Base ◽  
Test Results ◽  
Cutting Machine ◽  
Manufacturing Errors ◽  
Theoretical Results

Vibration is one of the most important problems in laser cutting machine tool, which causes the manufacturing errors, also influences the machining accuracy of the parts. Modal analysis can calculate vibration type of structures. The paper presents how to use the powerful FEA software ANSYS to do the modal analysis on laser cutting machine tool and also studies the undamped free vibration on laser cutting machine tool. Finally, the test results and theoretical results were compared to verify the rationality of the modal, these provide theoretical base and conditions for dynamics analysis and optimal design.

Application of PLC in the DC Vertical Lathe Spindle Control

2014 ◽  
Vol 687-691 ◽  
pp. 480-483
Author(s):  
Jia Xing Ma
Keyword(s):  
Machine Tool ◽  
High Precision ◽  
Speed Control ◽  
Dc Motor ◽  
Foreign Demand ◽  
Programmable Controller ◽  
Machine Tool Spindle ◽  
Speed Regulator

CNC vertical lathe is the main on products. The domestic and foreign demand is also very big. The key part of the high precision is on the control of the spindle. This design is with the German SIEMENS company programmable controller (PLC), S7-200 as the main controller; Germany SIEMENS company 6 ra7075 dc speed regulator, Z4 dc speed regulating device of dc motor, dc speed control was adopted to realize efficient and accurate control of machine tool spindle, and the electrical principle diagram is given.

Design of Machine Tool Spindle for Minimum Workpiece Cylindricity Error

1992 ◽  
Author(s):  
John Li ◽  
Vijayachander Musukula ◽  
Mohamed B. Trabia
Keyword(s):  
Machine Tool ◽  
Body Of Revolution ◽  
Machine Tool Spindle ◽  
Stepped Shaft ◽  
Smooth Body ◽  
Cylindricity Error

Abstract The design of machine tool spindle for minimum cylindricity error is presented. The shape of the spindle portion between the bearings, usually cylindrical, is reconfigured to increase the spindle rigidity. Two methods of reconfiguration are presented. In the first method, the spindle is reshaped as a smooth body of revolution. In the second method, the spindle is reshaped as a stepped shaft. Effects of bearings rigidity and fatigue stresses are also considered.

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