Resonant load control methods application to high-speed machine tool with linear motor

2002 ◽  
Author(s):  
E. Dumetz ◽  
F. Vanden Hende ◽  
P.J. Barre
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
Linear Motor ◽  
Load Control ◽  
Control Methods ◽  
High Speed Machine

Calculation and Analysis on the Key Parameters of High-Speed Linear Motor Feed System

2011 ◽  
Vol 189-193 ◽  
pp. 2046-2049
Author(s):  
Jun Hong Cheng
Keyword(s):  
Machine Tool ◽  
Theoretical Basis ◽  
High Speed ◽  
Influence Factors ◽  
Linear Motor ◽  
High Speed Machining ◽  
Feed System ◽  
Technical Parameters ◽  
Modern Manufacturing ◽  
High Speed Machine

High-speed machining is playing a more important role in modern manufacturing technology. The feed system of high-speed machine tool is one of the most important components. The linear motor has been widely used in high-speed machine tool. In this paper，a kind of machine tool feed system directly driven by a linear motor is introduced，and its technical parameters are analyzed and calculated. The main parameters’ influence factors and best scope are given out.These results can offer theoretical basis for manufacturing machining technology.

Electric Machine Technology Needs Analysis of the Linear Motor

2014 ◽  
Vol 490-491 ◽  
pp. 1138-1141
Author(s):  
Yu Ping Zhao ◽  
Yu Hai Xu
Keyword(s):  
Control System ◽  
Machine Tool ◽  
High Speed ◽  
Linear Motor ◽  
Test System ◽  
Electric Machine ◽  
Special Role ◽  
Technical Requirements ◽  
Drive Control ◽  
Five Axis

This article is in view of the linear motor aspects of application development in the field of electric machine tool equipment technical requirements analysis, linear motor with its high speed and high acceleration transmission has been in processing center, CNC milling machine, lathe, grinding machine, compound machine, laser is widely used in machine tools and heavy machine tool, in the aerospace, automotive, mold, energy, general machinery in areas such as plays a special role. Linear motor has precise control test system, reasonable matching of the technical indicators, to make it on the electric machine driven by linear motor can realize stable precision mobile and linear motor used for electric spark machine tool is another innovative application achievement of the modern advanced manufacturing industry. Domestic electric machine mostly adopts five axis NC gear rack drive control system, using the linear motor drive control system was still in the stage of research, to promote the linear motor is widely used in the field of electric machine, and the demand analysis.

A Novel Evaluation Method on the Precision of Linear Motor Feed System in High-Speed Machine Tools

2016 ◽  
Vol 836-837 ◽  
pp. 220-227 ◽  
Author(s):  
Xiao Jun Yang ◽  
Yan Li ◽  
Cheng Fang Ma ◽  
Dun Lv ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Mechanical System ◽  
Machine Tools ◽  
High Speed ◽  
Evaluation Method ◽  
Linear Motor ◽  
Feed System ◽  
Dynamic Precision ◽  
Transmission Structure ◽  
Accuracy And Repeatability ◽  
High Speed Machine

The linear motor feed system can realize high-precision motion with high-speed and high-acceleration, which has a broad application in high-speed machine tools. In its unique zero transmission structure, the motor is connected directly with the mechanical system. The thrust harmonics and other disturbances act on the motor mover directly, which makes the tracking fluctuation more prominent. The traditional accuracy and repeatability of positioning cannot reflect the precision of the linear motor feed system in the process of high-speed movement. In this paper, a novel precision evaluation method which takes the dynamic precision as the index is proposed for the linear motor feed system in high-speed machine tools. The performance and precision of linear motor feed system are evaluated by the transient error, steady-state follow error and tracking fluctuation, respectively. Then the servo control model is established oriented to dynamic precision. The influences of NC instructions, servo system and mechanical system on the dynamic precision are discussed. It can be obtained that this new evaluation method on the precision can evaluate systematically the performance of the linear motor feed system in high-speed machine tools. Meanwhile it can reveal efficiently main factors which lead to the decline of dynamic precision and propose effective improvement methods.

New Development of Supersonic Surface Grinding Machine Tool with a Linear-Motor-Driven Table System

2016 ◽  
Vol 1136 ◽  
pp. 667-672
Author(s):  
Lu Yang ◽  
Yu Can Fu ◽  
Jiu Hua Xu ◽  
Yong Tao Liu
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
High Performance ◽  
Linear Motor ◽  
Grinding Wheel ◽  
Research Activities ◽  
High Speed Grinding ◽  
Grinding Mechanism ◽  
Speed Up ◽  
Grinding Machine

Ultra-high speed grinding (UHSG) is a significant and promising machining technology in grinding hard-to-cut materials. To find out the aerodynamics of the grinding wheel body when the airflow field has subsonic, transonic, and supersonic speed characteristics and clarify the corresponding influence on the grinding mechanism, the study is conducted to develop a supersonic grinding machine tool that is capable of being operated at extreme wheel speed up to 450 m/s and meanwhile accompanying with high grinding capability. In accordance with the main design objectives, a high performance grinding motorized spindle with maximum rotational speed 36000r/min and maximum power 28kW is developed. The linear motor feed driven system is also exploited to satisfy the requirement of maximum reciprocating speed up to 2m/s. Following plenty of specific design and performance analysis works, a prototype of supersonic grinding machine tool is finally developed. In the end, this paper also puts forward a number of further studies and prospective for the research activities on basis of the developed grinder.

Sign in / Sign up

Export Citation Format

Share Document