Reference Pulse CNC Interpolator Based on Enclosing Line for 2D Parametric Curve
Author(s) -
Zahurin Samad,
Wan Azhar Wan Yusof
Publication year - 2012
Publication title -
jurnal teknologi
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.191
H-Index - 22
eISSN - 2180-3722
pISSN - 0127-9696
DOI - 10.11113/jt.v37.543
Subject(s) - line (geometry) , interpolation (computer graphics) , parametric statistics , numerical control , algorithm , computer science , point (geometry) , mathematics , artificial intelligence , engineering , geometry , motion (physics) , mechanical engineering , statistics , machining
Kertas kajian ini mengemukakan algoritma interpolasi CNC bagi lengkok parametrik umum 2D. Interpolasi yang dikemukakan ini menggunakan teknik rujukan-dedenyut ataupun teknik langkah-tambahan. Algoritma ini berasaskan kepada pencarian secara berterusan garisan-lingkungan yang bersilang dengan lengkok parametrik. Setelah garisan-lingkungan dikenalpasti, kawasan jarak-terdekat digunakan untuk memilih titik interpolasi tanpa melaksanakan pengiraan. Simulasi komputer secara real-time menunjukkan bahawa interpolasi yang dikemukakan ini telah meningkatkan halaju maksimum yang dibenarkan dan pada waktu yang sama mengekalkan kejituan yang tinggi. Kata kunci: interpolator; CNC; rujukan-dedenyut; peralatan mesin This paper proposes an efficient CNC interpolation algorithm for general 2D parametric curves. The proposed interpolator uses reference-pulse or incremental step technique. The algorithm is based upon finding the successive enclosing-lines that the parametric curve intersects. Once the intersected line is identified, the pre-defined closest distance region is used to select the interpolating point without resorting to calculation. Real-time computer simulations indicate that the proposed algorithm increases maximum allowable velocity while still maintaining high precision. Key words: interpolators, computerized numerical control (CNC), reference pulse, machine tools
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