Research on Interpolation Algorithm of Three-Links Hybrid Machine Tool

2010 ◽  
Vol 97-101 ◽  
pp. 3124-3127
Author(s):  
Li Da Zhu ◽  
Gang Li ◽  
Wan Shan Wang
Keyword(s):  
Machine Tool ◽  
Smooth Function ◽  
Joint Space ◽  
Interpolation Algorithm ◽  
Cnc System ◽  
Hybrid Machine Tool ◽  
Hybrid Machine ◽  
Interpolation Strategy ◽  
And Control ◽  
Geometric Locus

Aiming at the characteristics of structure and control of three-links hybrid machine tool, the interpolation strategy of CNC system is proposed in this paper. Coarse interpolation in workspace and fine interpolation in joint-space are expatiated. The trajectory points are transformed into discrete points by coarse interpolation mapping from workspace to joint-space. At the same time, the plans of trajectory, velocity and acceleration of discrete points in workspace are got, and then joint discrete points are realized by joint fitting smooth function. In order to meet the design demand and enhance effectively interpolation precision, the five polynomial interpolations will be thinning discrete points, and geometric locus will be very smooth.

Research on Open Architecture NC System of Blade Polishing Machine Based on PMAC

2011 ◽  
Vol 317-319 ◽  
pp. 1822-1825
Author(s):  
Ren Jiang Li ◽  
Xin Wang
Keyword(s):  
Control System ◽  
Machine Tool ◽  
Open Architecture ◽  
Interpolation Algorithm ◽  
Nc System ◽  
Hybrid Machine Tool ◽  
Hybrid Machine ◽  
Polishing Machine ◽  
Interpolation Strategy

This paper based on a kind of hybrid machine tool. The structure of hardware and the application of PMAC in the control system of the machine are introduced. This system uses double CPUS mode and the software is developed in Windows platform. Besides, the interpolation strategy and the interpolation algorithm for the machine are proposed

Error Comparison and Analysis of Parallel and Constraint Mechanism for 3-TPS Hybrid Machine Tool

2011 ◽  
Vol 127 ◽  
pp. 277-282
Author(s):  
Peng Fei Dang ◽  
Li Jin Fang
Keyword(s):  
Machine Tool ◽  
Parallel Mechanism ◽  
Parallel Robot ◽  
Error Model ◽  
Position Error ◽  
Robot Kinematics ◽  
Motion Error ◽  
Movable Plate ◽  
Hybrid Machine Tool ◽  
Hybrid Machine

This paper establishes position error model based on parallel robot kinematics theory, and analyses position error of the 3-TPS hybrid machine tool. Firstly, to calculate position error of the movable plate caused by the parallel mechanism links, through error model of the parallel mechanism which is established through inverse kinematics of the hybrid machine tool. Then, according to the error model of constraint mechanism established by transformation matrix method, the position error has been simulated and calculated. Finally, this paper compares the effects of both mechanisms. The analysis indicates the link error of constraint mechanism has more influence on movable plate posture than parallel mechanism, and provides help with motion error compensation and kinematic calibration.

Research on controllable damping technology and simulation of hybrid machine tool

2009 ◽  
Author(s):  
Lida Zhu ◽  
Chunxia Zhu ◽  
Cong Su ◽  
Gang Li ◽  
Jianyu Yang ◽  
...  
Keyword(s):  
Machine Tool ◽  
Hybrid Machine Tool ◽  
Hybrid Machine
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