Development of Post-Processing System for Three Types of Five-Axis Machine Tools Based on Solid Model

Author(s):  
J. Li ◽  
Yangpeng Song ◽  
Ye Liu

Although machine control data can be obtained by means of converting cutter location (CL) data comprised of the tool tip coordinate and the tool axis orientation vector in the workpiece coordinate frame with postprocessor, it’s uncertain whether they can be used for 5-axis machining. Owing to the fact that most postprocessors focus on the method to derive solutions for the equations of NC data by the form-shaping function matrix and the inverse kinematics model without taking the manufacturing scene into consideration, this study has presented a new post-processing system to generate and optimize NC data more effectively by correcting and selecting optimum solution intelligently for machining based on the solid model of machine tool in simulation environment. In general, the post-processing system consists of user interface layer, data access layer and data processing layer to give expression to the characteristics of universality, practicality and adaptability. User interface layer is mainly about loading the machine model and setting the relevant parameters. Data access layer includes model library of generalized five-axis machine tool configurations, rules library of cutter location data and NC data. Data processing layer is the major research in the paper, which illustrates how to correct the inverse solutions set and select the optimization solution for actual machining. The visual interface for post-processing system written by C++ was successfully applied in the experiment on a five-axis machine tool with a C-axis behind a B-axis rotary table, which demonstrated the effectiveness of the proposed post-processing methodology in the field of manufacturing.

1988 ◽  
Vol 59 (8) ◽  
pp. 1774-1776
Author(s):  
George G. Preckshot ◽  
David N. Butner ◽  
Michael D. Brown ◽  
William H. Meyer

2011 ◽  
Vol 201-203 ◽  
pp. 133-137
Author(s):  
Chen Hua She ◽  
Kai Sheng Li ◽  
Zhi Hao Zheng

Five-axis machining, an important processes in precision manufacturing, has been used in defense, aerospace and consumer product industries. Many combinations can be synthesized to generate various five-axis machine tool configurations, in which the linear and rotary axes are normally orthogonal. Since five-axis NC data can only be applied to a specific configuration, the portability of the NC data is inevitably limited. A special purpose five-axis machine with a nonorthogonal linear axis configuration is investigated in this research. The complete analytical equations for NC data are obtained using the homogeneous coordinate transformation matrix and inverse kinematics. A window-based postprocessor system written by Borland C++ Builder was developed according to the proposed algorithm. A roller gear cam was adopted as an example to generate the NC code using the proposed postprocessor system. A trail-cut experiment conducted with this special purpose machine tool confirms the effectiveness of the proposed methodology.


2013 ◽  
Vol 845 ◽  
pp. 779-785 ◽  
Author(s):  
Saiful Bahri Mohamed ◽  
Adnan Jameel ◽  
Mohammad Minhat

This review paper describes the implementation process for STEPNCFBUoA. Its software environment is first explained. ST-Developer is the central software tool that is responsible for converting EXPRESS schema to Java classes. FBDK is the tool used for developing the function blocks editor, raw material user interface, machining set-up data interface, and machine tool database. The two examples in the ISO 14649-11 standard are used as the main test parts. The paper provides a detailed account of STEP-NC data processing, Graphic user interface (GUI) and local manufacturing databases, for example, raw material, set-up, machine tool, and cutting tool databases. Machining simulation is validated through physical machining. This is done through machining a number of parts with varying data. The simulation graphic user interface is simple and wire-frame based, but sufficiently illustrates the tool-path information as well as showing the machine tools limits, and set-up orientations.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Liang Zhao ◽  
Hengzhi Gu ◽  
Jingxian Xu ◽  
Yang Cui ◽  
Chunjiang Shuai

Abstract As the simulation data of the Simufact Additive software was inconvenient to process, QT and structured query language (MySQL) database were used to develop the database to solve the processing of the simulation data. The GUI interface that has the functions of processing and saving the simulation data was designed. The interface developed by QT was used to start the Simufact Additive software, connect to the MySQL database and save the simulation data. The results showed that using MySQL as the management of simulation data has achieved better results in the post-processing of simulation data.


2013 ◽  
Vol 650 ◽  
pp. 523-528 ◽  
Author(s):  
Zhan Rong Feng ◽  
Li Xia Wang ◽  
Jie Wang

To solve the NC post processing problems of generated tool path file APT generated by Catia V5 in the application of MIKRON UCP600 Vario five-axis machining center, on the basis of the theoretical analysis of tool path parameter and data calculation, the post processor programmed with VC++ that is accordance with machine tool was used. It verified with Simulation and material test: the NC post possessing program can be directly used in CNC machining without manual modification. Furthermore, there was no mark by tool path and the accuracy of the size meets the requirements.


2021 ◽  
Author(s):  
Shi Wu ◽  
Taorui Liu ◽  
Xianli Liu ◽  
Zhengdong Fan ◽  
Yipeng Li

Abstract Studies show that the applied torque and load on the worktable of a dual-turntable five-axis machine tool continuously changes during the machining process. These variations generate vibration in the worktable along the axial direction, thereby reducing the machining accuracy. In order to improve the machining accuracy of the machine tool and the dynamic characteristics of the worktable, this paper first established the nonlinear dynamic equation of the axial vibration of the machine tool table when the worktable is subjected to torque, swing moment and load according to the elasticity of the plate and shell; then according to Galerkin The truncation method solves the dynamic displacement in the axial direction of the worktable, as well as the bifurcation diagram, displacement waveform diagram, phase plane trajectory and Poincaré cross-section diagram of the processing system; Finally, the influence of different parameters, including torque, swing moment, and load on axial vibration of the worktable was analyzed during the tool operation. The obtained results reveal that as the external load changes, the corresponding axial vibration of the worktable is mainly in the state of large periodic motion, where the maximum vibration amplitude reaches 0.09mm, and the external load has the greatest influence on the axial vibration of the worktable. Moreover, the axial vibration of the worktable is affected by the swing moment. More specifically, in the chaotic state of a small period and small area, the maximum vibration amplitude reaches 0.03mm, and the swing moment has a negligible effect on the axial vibration of the worktable. The influence of torque and load on the vibration characteristics of the five-axis machine tool table during machining was studied through experiments. The obtained results demonstrate that non-linear analysis of the table axial vibration of the five-axis machine tool with dual turntables is an effective way to control the stability of the worktable during the processing of the workpiece.


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