Development of a high-speed CNC cutting machine using linear motors

2005 ◽  
Vol 166 (3) ◽  
pp. 321-329 ◽  
Author(s):  
Seamus Gordon ◽  
Michael T. Hillery
Keyword(s):  
High Speed ◽  
Linear Motors ◽  
Cutting Machine

Tangential Follow System of High-Speed Leather Cutting Machine Modeling and Control Optimization

2011 ◽  
Vol 317-319 ◽  
pp. 649-654
Author(s):  
Yan Wei Zhao ◽  
Meng Sheng ◽  
Ting Li ◽  
Xin Min Wu ◽  
Shuo Jiang
Keyword(s):  
High Speed ◽  
Fitness Function ◽  
Numerical Control ◽  
Mechanical Transmission ◽  
Combined System ◽  
Evaluation Standard ◽  
Modeling And Control ◽  
Cutting Machine ◽  
Machine Modeling ◽  
Performance Indexes

As to the low dynamic response of tangential follow system, especially the poor dynamic follow ability when executing small arc rapid interpolation. Based on the principle of mechanical dynamics, the mathematical model of leather cutting machine tangential follow mechanical transmission system is built, considering a type of high-speed numerical control leather cutting machine as the research object. Joined mechanical model and servo motor model together, its electromechanical combined system diagram is created by Simulink. On the basis of this diagram, the dynamic characteristic is analyzed. The composite evaluation standard including multiple performance indexes is used for the fitness function, the three-ring PID control parameters of tangential follow system is optimized with genetic algorithm (GA). The results show that GA optimization is more superior and efficient, comparing with traditional PID setting method.

Modeling and Synchronous Control of Dual Mechanically Coupled Linear Servo System

2014 ◽  
Vol 137 (4) ◽  
Author(s):  
Wu-Sung Yao
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
Dynamic Stiffness ◽  
System Modeling ◽  
Coupled System ◽  
Mechanical Coupling ◽  
Synchronous Control ◽  
Linear Motors ◽  
Operation Speed ◽  
Control Scheme

This paper presents a system modeling technique for a high-speed gantry-type machine tool driven by linear motors. One feed axis of the investigated machine tool is driven by the joint thrust from two parallel linear motors. These two parallel motors are coupled mechanically to form the Y-axis while another standalone motor fixed to a support forms the X-axis. The components in the X-axis, which is treated as the mechanical coupling, are carried by the slides of the Y-axis motors. This configuration is applied to improve the dynamic stiffness of the system and operation speed/acceleration. However, the precise synchronous control of the two parallel and coupled motors would be the major challenge. To overcome this challenge, a multivariable system identification method is developed in this paper. This method is used to construct an accurate system mathematical model for the target coupled system. A synchronous control scheme is then applied to the model obtained using the proposed technique. The performance of the system is experimentally verified with a high-speed S-curve motion profile. The results substantiate the constructed system model and demonstrate the effectiveness of the control scheme.

Application of Linear Servo Motor in Biochip Microarray Instrument

2013 ◽  
Vol 321-324 ◽  
pp. 795-798
Author(s):  
Quan Liu ◽  
Qiao Qiao Liu ◽  
Xiao Fei Wang ◽  
Xue Zhao
Keyword(s):  
High Speed ◽  
Ball Screw ◽  
Servo Motor ◽  
Direct Drive ◽  
Improve Performance ◽  
Positioning Accuracy ◽  
Linear Motors ◽  
Rotary Motors ◽  
Automation Control ◽  
Novel Design

A novel design to biochip microarray instrument is use of linear motors, in preference to conventional rotary motors driving ball screw. Three ironless core linear servo motors direct drive the X, Y and Z-axis motion, Improve performance such as superior positioning accuracy, high-speed operation and increased efficiency. The whole configuration for new microarray printing instrument is designed. Furthermore, the structure of special linear motors is also designed detailedly. And the linear servo motor automation control technology is introduced in this paper.

Research and Development of a Test Platform for Synthetic Performance Parameters of Linear Motors

2011 ◽  
Vol 383-390 ◽  
pp. 4486-4491
Author(s):  
Zhong Quan Luan ◽  
Hu Yan Ji ◽  
Qing Dong Yang
Keyword(s):  
Research And Development ◽  
High Precision ◽  
Virtual Instrument ◽  
High Speed ◽  
Linear Motor ◽  
Cnc Machine Tools ◽  
Performance Parameters ◽  
Cnc Machine ◽  
Linear Motors ◽  
Test Platform

Linear Motors have been used more and more widely in high precision and high-speed linear motion for CNC machine tools, but uniform testing standards and methods for linear motor performance have not been established in China. Based on the virtual instrument software platform by means of computer technology, research and development of the test platform for synthetic performance parameters of linear motors can realize the rapid and accurate measurement, automatic storage and processing of linear-motor output, currents, positions, temperatures and other performance parameters. , Meanwhile, the platform can also provide the technical direction for design or improvement of linear motors, and technically support the formulation of related standards. Experiments showed that the test platform for synthetic performance parameters of linear motors can achieve high precision and automatic measurement to meet the testing requirements for synthetic performance of linear motors.

Research on Automatic Programming System of High Speed Wire Cutting Machine

2010 ◽  
Vol 43 ◽  
pp. 637-640
Author(s):  
Kun Cheng ◽  
Jun Fang Ni ◽  
Li Li Lv ◽  
Zhu Jun Ding ◽  
Xiao Wei Xu
Keyword(s):  
High Speed ◽  
Processing System ◽  
Programming System ◽  
Automatic Programming ◽  
System Software ◽  
High Speed Cutting ◽  
Cutting Machine ◽  
Wire Cutting ◽  
Machine Processing ◽  
Programming Time

Programming of graphical interaction and modular structure are adopted in this wire cutting machine software by analyzing the structure of DXF file, picking out the part’s outline information in Visual C++ 6.0, and combining the manufacture conditions in this paper. The NC codes are obtained which are consistent with the high-speed cutting machine processing system automatically. This system software greatly facilitates the process of high speed cutting machine, shortens programming time and improves the accuracy of the programming.

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