Coupled Motion Control and Adjustment in Automatic Programming System of CNC Hobbing Machines

2011 ◽  
Vol 86 ◽  
pp. 552-555
Author(s):  
Qiang Li ◽  
Li Li Yi ◽  
Shi Long Wang ◽  
Jie Zhou
Keyword(s):  
Motion Control ◽  
Machining Process ◽  
Programming System ◽  
Automatic Programming ◽  
Processing Efficiency ◽  
Coupled Motion ◽  
Coupling Relationship ◽  
Adjustment Time ◽  
Gear Hobbing ◽  
Relationship Model

The motion relationship model of all axes involved in CNC hobbing machines is established. A single pitch adjustment method based on motion coupling relationship in gear hobbing is proposed. With position adjustment of only 0 to 1 pitch, the same motion coupling relationship during the whole machining process can be guaranteed. Though automatic programming system based on SINUMERIK 840D, the coupled motion control and adjustment in CNC hobbing process is realized. And practical application in CNC hobbing machines shows that this method can reduced adjustment time effectively during process, improving processing efficiency.

Automatic Programming System for Machining Center On-Line Inspection

2010 ◽  
Vol 139-141 ◽  
pp. 1233-1236
Author(s):  
Jian Jun Meng ◽  
Fen Liu ◽  
Hong Qiang Sang ◽  
Jin Tian Yun
Keyword(s):  
Production Efficiency ◽  
Machining Process ◽  
Quality Analysis ◽  
Secondary Development ◽  
Programming System ◽  
Automatic Programming ◽  
Machining Center ◽  
Object Arx ◽  
On Line ◽  
Tool Damage

Currently, manual inspection and off-line inspection play an important role in the inspection methods of machining process, which severely restricts the development of inspecting automation. In the paper, automatic programming system for machining center on-line inspection was developed by secondary development kit object ARX of AutoCAD. Inspecting datum was obtained, inspecting process planning was laid up and inspecting program was made automatically. The inspection can be applied to automatic workpiece setting up, on-line inspection of workpiece, data processing, quality analysis and compensation of machined workpiece errors, which led to increase precision, production efficiency and quality and reduced the rate of rejection and tool damage.

The Study of Automatic Programming System for Near-Field Electrospinning Direct Write

2011 ◽  
Vol 197-198 ◽  
pp. 3-7 ◽  
Author(s):  
Zhi Min Lin ◽  
Bin Yao ◽  
Jun Jun Ye ◽  
Gao Feng Zheng
Keyword(s):  
Near Field ◽  
Processing Parameters ◽  
Machining Process ◽  
Open Architecture ◽  
Programming System ◽  
Automatic Programming ◽  
Direct Write ◽  
Nano Structure ◽  
Experimental Base ◽  
Open Architecture Cnc

In order to control the machining process of Direct-Write based on Near-field Electrospinning automatically, an automatic programming system used for an open architecture CNC system is proposed in this paper. This system descirbes the machining trajectory via the 2D CAD drawing, from which the data is extracted by the system. According to the processing parameters, the data is classified and reordered, and NC codes are automatically generated. The system solves the problem in integrating the design and machining, makes it more convenient to experimental research and realizes patterned fabrication of micro/nano-structure,which provides a good experimental base for the development of electrospinning technology.

Research on the Key Technology of Automatic Programming System for Line-Contact Processing

2013 ◽  
Vol 423-426 ◽  
pp. 2873-2876
Author(s):  
Kun Qi Wang ◽  
Bao Chen Yang ◽  
Lei Xiong ◽  
Le Liu
Keyword(s):  
Tool Path ◽  
Nc Machining ◽  
Machining Process ◽  
Programming System ◽  
Automatic Programming ◽  
Line Contact ◽  
Key Technology ◽  
Processing Information ◽  
On Line ◽  
Contact Processing

In view of the current situation of line contact efficiency of NC machining without automatic programing system, the automatic programming system for NC machining based on line contact processing is developed. According to the characteristics of line contact processing, the key technologies in the automatic programming system of this paper is studied. After surface modeling, the data of DXF files generated by CAD systems can be read. And the surface processing information is obtained by these data sorted. Through the design of machining process and the sorting of tool path, the tool path of line contact processing is got. Then the research of soft cut of ruled surface is completed, and the graphical automatic programming is realized.

Key Technologies of Embedded Gear Machining CNC System

2013 ◽  
Author(s):  
Jiang Han ◽  
Xiao-qing Tian ◽  
Lian Xia ◽  
Fu-gen Li ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Tracking Error ◽  
Mathematic Model ◽  
Numerical Control ◽  
Machining Process ◽  
Programming Algorithm ◽  
Contour Error ◽  
Programming System ◽  
Automatic Programming ◽  
Database Technology ◽  
Process Database

A reconfigurable gear machining numerical control system (NC/CNC) architecture is proposed in this paper. The CNC platform can be quickly applied to gear hobbing, shaping, milling and grinding machine, through simple reconfiguring or parameter setting. Parametric automatic programming technology, high speed and high precision electronic gearbox, process database technology are studied. Based on the analysis of the gear machining process, the mathematic model on automatic programming of gear machining is established. Based on the Windows CE operating system, the CNC gear machining automatic programming system is developed on the ARM+DSP hardware platform, including the design of human-machine interface, automatic programming algorithm and other modules. With the support of the automatic programming and process database modules, NC codes can be generated automatically just by inputting gear parameters, tool parameters and process parameters, then, the interpolation data structure can be generated by interpreter module. A new kind of software electronic gearbox (EGB) and its implementation methods are also researched in the embedded CNC. Data flow among the modules is analyzed. Finally, experiments are conducted, and the tracking error and contour error are analyzed. The results show that the proposed gear machining CNC architecture is effective.

Development of NC Wire Cutting Automatic Programming System Based on Component Technology

2014 ◽  
Vol 940 ◽  
pp. 437-440
Author(s):  
Ying Zhang ◽  
Xin Shi
Keyword(s):  
Electrical Discharge Machining ◽  
Machining Process ◽  
Component Technology ◽  
Programming System ◽  
Automatic Programming ◽  
Dynamic Link Library ◽  
Nc Code ◽  
Component Object ◽  
Wire Cutting ◽  
Set Up

Based on analysis and research on the Wire cutting Electrical Discharge Machining process , developers could set up the whole system frame and each component mold ,as well as each component mold of function .At the same time ,developers researched the technique of Component Object Model , used the technique of Dynamic Link Library to realize the graphic input, used the technique of ActiveX to realize the code of Number Control imitation , established the whole database based on Access, successfully, realizing AutoCAD graphic input , taking the data processing and calculating the order of the cut, and then producing the postprocessing files, finally realizing all of NC code imitation .

The automatic programming system alpha

1965 ◽  
Vol 5 (2) ◽  
pp. 203-214 ◽  
Author(s):  
G.I. Babetskii ◽  
M.M. Bezhanova ◽  
Yu.M. Voloshin ◽  
A.P. Yershov ◽  
B.A. Zagatskii ◽  
...  
Keyword(s):  
Programming System ◽  
Automatic Programming

Research on Kinematic Analysis and Post Processing Arithmetic for NC Machine Tool for Bonnet Tool Polishing

2007 ◽  
Vol 364-366 ◽  
pp. 707-712
Author(s):  
Ying Xue Yao ◽  
Shun Zhou Yu ◽  
Da Gang Xie
Keyword(s):  
Machine Tool ◽  
Metal Cutting ◽  
Transformation Method ◽  
Programming System ◽  
Automatic Programming ◽  
Post Processing ◽  
Nc Machine Tool ◽  
Nc Programming ◽  
Nc Machine ◽  
Optical Polishing

Bonnet tool polishing, combined traditional optical polishing technique with modern NC technology, is an novel optical polishing technique. As the motion control and material removal process is different from metal cutting NC machine tool, the NC programming for bonnet tool polishing NC machine tools cannot be carried out with commercial CAM software. This paper analyses the kinematics of feed mechanism and precession mechanism using coordinate transformation method and sets up the feed and precession kinematics equations. The arithmetic of post processing applied to NC automatic programming system is proposed according to kinematics equations and detail bonnet tool polishing technique.

Cross-Coupled Adaptive Feedrate Control for Multiaxis Machine Tools

1991 ◽  
Vol 113 (3) ◽  
pp. 451-457 ◽  
Author(s):  
Hua-Yi Chuang ◽  
Chang-Huan Liu
Keyword(s):  
Computer Simulation ◽  
Control System ◽  
Motion Control ◽  
Control Strategy ◽  
Machine Tools ◽  
Feedback Loop ◽  
Contour Error ◽  
Coupled Motion ◽  
Contouring Accuracy ◽  
Perturbed Model

Cross-coupled controllers have been proposed for improving contouring accuracy of multiaxis machine tools. However, during cross-coupled motion control, increasing contour feedrate may result in larger contour errors. In order to increase feedrate and hence productivity without sacrificing the contouring performance, this paper presents an adapative feedrate control strategy based on a linear perturbed model. The method effectively closes the feedback loop between the contour error and feedrate. An experimental biaxial control system is constructed to implement the proposed strategy. Both computer simulation and experiments have verified that desired contouring accuracy can be achieved.

scholarly journals Experimental study on cutting parameters and machining paths of SiCp/Al composite thin-walled workpieces

2020 ◽  
Vol 29 ◽  
pp. 2633366X2094252
Author(s):  
Yunan Liu ◽  
Shutao Huang ◽  
Keru Jiao ◽  
Lifu Xu
Keyword(s):  
Cutting Force ◽  
Volume Fraction ◽  
Cutting Speed ◽  
Aluminum Matrix ◽  
Machining Process ◽  
Cutting Depth ◽  
Processing Efficiency ◽  
Al Composite ◽  
Edge Defects ◽  
Thin Walled

Thin-walled workpieces of silicon carbide particle-reinforced aluminum matrix (SiCp/Al) composites with outstanding properties have been widely applied in many fields, such as automobile, weapons, and aerospace. However, the thin-walled workpieces exhibit poor rigidity, large yield ratio, and easily deform under the cutting force and cutting heat during the machining process. Herein, in order to improve the processing efficiency and precision of higher volume fraction SiCp/Al composite thin-walled workpieces, the influence of different high-speed milling parameters and machining paths on the edge defects is analyzed. The results reveal that the cutting force initially increased and then decreased with the cutting speed. Besides, the cutting force steadily increased with radial cutting depth and feed per tooth, but the influence of feed per tooth is less than radial cutting depth. After up-milling cut-in and cut-out processing and down-milling cut-out processing, the cut-in end of the workpiece exhibited higher breakage and obvious edge defects. However, the workpiece edges remained intact after down-milling cut-in processing. In conclusion, a higher cutting speed, a smaller radial cutting depth, and moderate feed per tooth are required to decrease the cutting force during the milling of SiCp/Al composite thin-walled workpiece. Furthermore, down-milling cut-in processing mode can reduce the edge defects and improve the processing efficiency and precision of the workpiece.

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