Invention Grant
- Patent Title: Feedrate scheduling method for five-axis dual-spline curve interpolation
-
Application No.: US16322290Application Date: 2018-01-07
-
Publication No.: US11188056B2Publication Date: 2021-11-30
- Inventor: Zhenyuan Jia , Jianwei Ma , Dening Song , Siyu Chen , Guangzhi He , Fuji Wang , Wei Liu
- Applicant: Dalian University of Technology
- Applicant Address: CN Dalian
- Assignee: Dalian University of Technology
- Current Assignee: Dalian University of Technology
- Current Assignee Address: CN Dalian
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: CN201710809848.2 20170911
- International Application: PCT/CN2018/071689 WO 20180107
- International Announcement: WO2019/047458 WO 20190314
- Main IPC: G05B19/416
- IPC: G05B19/416

Abstract:
This invention, a feedrate scheduling method for five-axis dual-spline curve interpolation, belongs to multi-axis NC (Numerical Control) machining filed, featured a feedrate scheduling method with constant speed at feedrate-sensitive regions under axial drive constraints for five-axis dual-spline interpolation. This method first discretizes the tool-tip spline with equal arc length, thus getting the relation between the axial motion and the toolpath by computing the first, second, and third order derivatives of the axial positions with respect to the tool-tip motion arc length. After that, determine the feedrate-sensitive regions with the constraints of axial drive limitations and the objective of balanced machining quality and efficiency. Finally, determine the acceleration/deceleration-start-point curve parameters by bi-directional scanning. The invented method can effectively make a balance between the feed motion stability and efficiency in five-axis machining, and possesses a high computational efficiency and a good real-time capability.
Public/Granted literature
- US20200004228A1 A FEEDRATE SCHEDULING METHOD FOR FIVE-AXIS DUAL-SPLINE CURVE INTERPOLATION Public/Granted day:2020-01-02
Information query
IPC分类: