3240 Study on Tool Path Generation for Parallel Mechanism Machine Tools

2008 ◽  
Vol 2008.4 (0) ◽  
pp. 177-178
Author(s):  
Yasuho AOKI ◽  
Hiroshi TACHIYA ◽  
Hiroshi YACHI ◽  
Yusuke MIYAZAKI
Keyword(s):  
Machine Tools ◽  
Parallel Mechanism ◽  
Tool Path ◽  
Tool Path Generation ◽  
Path Generation

605 Study of a parallel mechanism type machine tool and its tool path generation for high-precision work

2006 ◽  
Vol 2006.43 (0) ◽  
pp. 177-178
Author(s):  
Ryoji HATTORI ◽  
Hiroshi TACHIYA ◽  
Naoki ASAKAWA ◽  
Yoshiyuki KANEKO ◽  
Hiroshi YACHI
Keyword(s):  
Machine Tool ◽  
High Precision ◽  
Parallel Mechanism ◽  
Tool Path ◽  
Tool Path Generation ◽  
Path Generation ◽  
Type Machine

Tool-Path Generation for Conical Groove of Cylindrical Cams by Small-Sized Cutting Tools

2011 ◽  
Vol 189-193 ◽  
pp. 3046-3049
Author(s):  
Jui Pin Hung ◽  
Kuan Lin Chiu ◽  
Yuan Lung Lai
Keyword(s):  
Machine Tools ◽  
Tool Path ◽  
Cutting Tools ◽  
Tool Path Generation ◽  
Path Generation ◽  
End Mill ◽  
Diagram Method ◽  
Tool Paths ◽  
Nc Program ◽  
Generating Method

Instead of 2D expanding diagram method, this paper presents a new regenerating method for cutter location paths of using smaller tools to produce cylindrical cams. According to the expected motions, cams are put to use in various applications in mechanism. For a cylindrical cam, the roller follower operates in a groove cut on the periphery of an end mill with the diameter same as the roller. By using the conventional method, full-sized cutting tools, will restrict the flexibility of choosing cutting tools for wide roller guide. The manufacture of cylindrical cams is complicate and precise work that depends on the generating method and types of machine tools employed. Since the guiding curve cannot be offset exactly along the cylindrical surface, this leads to some approximating problems. Though the tool-paths generation by using the same size tools as rollers is applied in practice, the study of NC program by unequal tools is not available to meet high precision requirement. This proposed 3D offset-based generating method can regenerate tool-paths for standard cutting tools instead of larger ones and implemented on computerized CAM system. Examples with wider grooves are demonstrated to prove its effectiveness.

Tool Path Optimization of 2D Contour Considering Stock Boundary

2012 ◽  
Vol 251 ◽  
pp. 169-172
Author(s):  
Fu Zhong Wu
Keyword(s):  
Present Method ◽  
Tool Path ◽  
Three Dimensional ◽  
Boundary Curve ◽  
Tool Path Generation ◽  
Path Optimization ◽  
Path Generation ◽  
Offset Curves ◽  
Measuring Machine ◽  
Tool Diameter

Based on analyzing the existing algorithms, a novel tool path generation of 2D contour considering stock boundary is presented. Firstly the boundary points of stock are obtained by three-dimensional measuring machine. And the boundary curve is constructed by method of features identifying. The stock boundary is offset toward outside with tool diameter. An enclosed region is formed between the contour curves and the offset curves of stock boundary. The tool path is generated by form of parallel spiral by offsetting the stock boundary in the enclosed region. Finally the validity of present method is demonstrated by an example.

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