Generalized pseudo inverse kinematics at singularities for developing five axis CNC machine tool postprocessor

This paper presents an analytical scheme for analyzing the singular configuration problem of general five-axes CNC machine tool. A computational technique based on the generalized pseudo inverse kinematics for finding out feasible solution of the problem is proposed. The technique is then used for developing postprocessor algorithm of five-axes CNC machine tool. Typical examples of singularity analysis are carried out, and real cutting parts are implemented for verifying the research result. | Volume 35 Number 2 2 Vietnam Journal of Mechanics, VAST, Vol. 35, No. 2 (2013), pp. 147 – 155 GENERALIZED PSEUDO INVERSE KINEMATICS AT SINGULARITIES FOR DEVELOPING FIVE-AXES CNC MACHINE TOOL POSTPROCESSOR Chu Anh My1,∗, Vuong Xuan Hai2 Le Qui Don Technical University, Vietnam 2 Dong Anh Mechanical Company, Vietnam 1 E-mail: ∗ mychuanh@ Abstract. This paper presents an analytical scheme for analyzing the singular configuration problem of general five-axes CNC machine tool. A computational technique based on the generalized pseudo inverse kinematics for finding out feasible solution of the problem is proposed. The technique is then used for developing postprocessor algorithm of five-axes CNC machine tool. Typical examples of singularity analysis are carried out, and real cutting parts are implemented for verifying the research result. Keywords: cessor. Five-axis CNC machine, Kinematics singularity, Five-axis CNC postpro- 1. INTRODUCTION Five-axis milling CNC machine (five-axis milling Robot) has been widely utilized as an efficient tool for fabricating products of complex geometry which may include numerous freeform surfaces. The products are widely used in several high technology industries such as the aerospace industry, automotive industry, shipbuilding industry, etc. Using 5-axis CNC systems integrated with CAMs, end-to-end component design and manufacturing is highly automated. Today’s commercial CAMs have been shown their advantages in preparing complex G-codes program file which is used for controlling the machines. The main function of any CAM system is to compute the cutter trajectory (tool path) in task space (so-called workpiece space) defined inside the system by programmer, basing on the input of the part surface modeling, surface quality requirement (surface error), cutter definition, tool path pattern, etc. The tool path is piecewise curves passing through CL points (cutter location points). In task space, each CL point is defined as

Không thể tạo bản xem trước, hãy bấm tải xuống
TÀI LIỆU XEM NHIỀU
TỪ KHÓA LIÊN QUAN
TÀI LIỆU MỚI ĐĂNG
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.