Development of multi-axis numerical control program for mill—turn machine

A mill—turn machine combining a lathe and machining centre can perform turning and milling operations on the same machine. It can machine a workpiece in one set-up and eliminate errors that can be produced by moving the workpiece between turning and milling machines. Since the mill—turn machine has...

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Vydáno v:Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Ročník 222; číslo 6; s. 741 - 745
Hlavní autoři: She, Chen-Hua, Hung, Chih-Wei
Médium: Journal Article
Jazyk:angličtina
Vydáno: London, England SAGE Publications 01.06.2008
Mechanical Engineering Publications
SAGE PUBLICATIONS, INC
Témata:
Algorithms
Applied sciences
C++ (programming language)
CAD
CAM
Computer aided design
Computer aided manufacturing
Computer simulation
Control systems
Coordinate transformations
Cutting
Design analysis
Design engineering
Exact sciences and technology
Inverse kinematics
Kinematics
Machinery
Machining
Mathematical analysis
Mechanical engineering
Mechanical engineering. Machine design
Milling (machining)
Milling industry
Milling machines
Numerical controls
Trajectories
Turning (machining)
mill—turn
postprocessor
numerical control
multi-axis
Lathe
Transformation of coordinates
Computer aided manufacturing
Multiaxis machine
Milling machine
Machining
Turning
Modeling
Inverse problem
Machine tool
Inverse matrix
mill-turn
Kinematics
Milling
Computer aided design
ISSN:0954-4054, 2041-2975
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Popis
Shrnutí:A mill—turn machine combining a lathe and machining centre can perform turning and milling operations on the same machine. It can machine a workpiece in one set-up and eliminate errors that can be produced by moving the workpiece between turning and milling machines. Since the mill—turn machine has a complex configuration in which linear and rotary movements are non-orthogonal, generating the part program manually is almost impossible. This work develops an interface called a postprocessor that converts cutter location data generated by a general commercial computer-aided design (CAD)/computer-aided manufacturing (CAM) system into the numerical control (NC) data dedicated for the mill—turn machine. The form-shaping function matrix of the mill—turn machine, which describes the motion trajectory of tool points relative to the workpiece, is derived by the homogeneous coordinate transformation matrix. The complete analytical equations for NC data are obtained through a form-shaping function matrix and inverse kinematics. A window-based postprocessor system written in Borland C++ Builder and OpenGL was developed according to the proposed algorithm. Solid cutting simulation software is utilized to verify the effectiveness of the proposed algorithm.
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ISSN:0954-4054
2041-2975
DOI:10.1243/09544054JEM1098SC