Free-Form Surface Five-Axis Machining G-Code Automatic Generation System Based on Path Messages for the Different CNC System

2011 ◽  
Vol 55-57 ◽  
pp. 1441-1446
Author(s):  
Shu Kun Cao ◽  
Jia Jia ◽  
Wei Wei Song ◽  
Kai Feng Song ◽  
Jie Lv
Keyword(s):  
Control System ◽  
Tool Path ◽  
Automatic Generation ◽  
Numerical Control ◽  
Free Form ◽  
Processing Route ◽  
Numerical Control System ◽  
G Code ◽  
Free Form Surface ◽  
Five Axis

For the free-form surface 5-axis computer numerical control processing field, we can obtain the processing route information according to the secondary development of UG , it also based on the free surface 5-axis numerical control machining tool path and synchronization of posture multi-objective optimization algorithms, then develops a software module according to the analysis comparison of features and programming instructions of the Fanuc and Siemens numerical control system, This module can be realized according to the information from the path for the two numerical control system, this module generates the proper or absolute matching G-code, it also can generate the automatic G-code for many different numerical control system .

Tool Path Generation for Five-Axis Controlled Machining of Free-Form Surface Using Barrel Tool: Control of Contact Point on Cutting Edge

2020 ◽  
Author(s):  
Tomonobu Suzuki ◽  
Koichi Morishige
Keyword(s):  
Tool Path ◽  
Contact Point ◽  
Cutting Edge ◽  
Free Form ◽  
End Mill ◽  
Ball End Mill ◽  
Surface Machining ◽  
Free Form Surface ◽  
The Cost ◽  
Five Axis

Abstract This study aimed to improve the efficiency of free-form surface machining by using a five-axis controlled machine tool and a barrel tool. The barrel tool has cutting edges, with curvature smaller than the radius, increasing the pick feed width compared with a conventional ball end mill of the same tool radius. As a result, the machining efficiency can be improved; however, the cost of the barrel tool is high and difficult to reground. In this study, a method to obtain the cutting points that make the cusp height below the target value is proposed. Moreover, a method to improve the tool life by continuously and uniformly changing the contact point on the cutting edge is proposed. The usefulness of the developed method is confirmed through machining simulations.

Studies on the Algorithm for Five-Axis NC Machining with Triangular Facet Model

2013 ◽  
Vol 385-386 ◽  
pp. 726-730
Author(s):  
Ren Xian Geng ◽  
Hou Jun Qi ◽  
Xin Pan ◽  
Zhi Gang Liu
Keyword(s):  
Tool Path ◽  
Nc Machining ◽  
Surface Shape ◽  
Free Form ◽  
Cutting Efficiency ◽  
Triangular Facet ◽  
Constant Scallop Height ◽  
Free Form Surface ◽  
Five Axis ◽  
Facet Model

Using five-axis equipment for NC machining of free-form surface is an effective way to improve machining quality and machining efficiency, the surface shape and the five coordinate of the complexity of the machine tool movement led to its tool path planning technology is difficult. The paper aimed at the five coordinate NC machining of free-form surface and puts forward a five-axis NC machining method based on triangular facet model. The research based on triangular facet model, using constant scallop height method to calculate the step distance and improve the cutting efficiency to a great extent. In the process, tool path is generated, combining with the method of configuration space interference free.

Numerical Control System of Conventional Milling Machine

2016 ◽  
Vol 841 ◽  
pp. 179-183
Author(s):  
Tadeusz Mikolajczyk
Keyword(s):  
Control System ◽  
Numerical Control ◽  
Milling Machine ◽  
Numerical Control System ◽  
Electromagnetic System ◽  
Special Software ◽  
G Code

The paper presents a system of numerical control conventional milling machine, however with drives equipped with electromagnetic clutches. In control system was used relay controlled using PC. There are connected to buttons to manually panel milling machine with an electromagnetic system feeds. Developed using VB6 special software to control the machine with G-code.

Machining of Free-Form Surface Base on Cutter Shaft Tilt Method with Ball-End Cutter

2011 ◽  
Vol 215 ◽  
pp. 176-181
Author(s):  
Li Min ◽  
Ke Hua Zhang
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Free Form ◽  
Real Surface ◽  
End Mill ◽  
Ball End Mill ◽  
Surface Machining ◽  
Processing Accuracy ◽  
Free Form Surface ◽  
Five Axis

A new tool path generation method based on cutter shaft tilt method was proposed for free-form surface machining by using Ball-end Cutter. Firstly, it introduces the processing quality problems caused by traditional ball-end mill processing. Then cutter shaft tilt was proposed to avoid the above questions. Analyzing the different machining efficiency at the different angle, and then cutter shaft tilt compensation method which based on above method could avoid that problem was proposed. After the paths calculation to a real surface and simulation, the result shows that, comparing to traditional machining method, the new method reduced efficiently phenomenon of extruding and scratching surface. It meets five-axis processing accuracy requirements.

Automatic generation of efficient and interference-free five-axis scanning path for free-form surface inspection

2018 ◽  
Vol 98 ◽  
pp. 24-38 ◽  
Author(s):  
Pengcheng Hu ◽  
Huicheng Zhou ◽  
Jihong Chen ◽  
Chenhan Lee ◽  
Kai Tang ◽  
...  
Keyword(s):  
Automatic Generation ◽  
Free Form ◽  
Surface Inspection ◽  
Scanning Path ◽  
Free Form Surface ◽  
Five Axis

Virtual Five-Axis Milling of Free-Form Surface-Part II: Feed Optimization

2010 ◽  
Vol 29-32 ◽  
pp. 430-435
Author(s):  
Li Qiang Zhang ◽  
Ye Cui Yan
Keyword(s):  
Process Optimization ◽  
Sequential Quadratic Programming ◽  
Tool Path ◽  
Milling Process ◽  
Free Form ◽  
Machining Time ◽  
Mechanics Model ◽  
Finished Surface ◽  
Free Form Surface ◽  
Five Axis

This paper presents process optimization for the five-axis milling based on the mechanics model explained in Part I. The process is optimized by varying the feed as the tool-workpiece engagements. The linear and angular feedrates are optimized by sequential quadratic programming. Sharp feedrate changes may result in undesired feed-marks on the finished surface. The adopted step is to update the the original CL file with optimized and filtered feedrate commands. The five-axis milling process is simulated in a virtual enviroment, and the resulting feedrate outputs are stored at each position along the tool path. The new feedrate profiles are shown to considerably reduce the machining time while avoiding process faults.

Design of a New Five-Axis Linkage CNC Machining Center

2013 ◽  
Vol 313-314 ◽  
pp. 1135-1138
Author(s):  
Xing Guo Liu ◽  
Chi Gang Deng ◽  
Yu Hang Liu ◽  
Qing Ying Zhao
Keyword(s):  
Control System ◽  
High Precision ◽  
Space Curve ◽  
Cnc Machining ◽  
Numerical Control ◽  
Numerical Control System ◽  
Processing Equipment ◽  
Machining Center ◽  
Five Axis ◽  
Cnc Machining Center

Five-axis linkage CNC Machining CenterXH756 has five axis -- X, Y, Z, A, B, can achieve five axis linkage processing function, is the most ideal equipment of processing space curve CAM, cylindrical CAM and die. Its numerical control system is M520 of Mitsubishi of Japan. XH756 is most advanced CNC processing equipment with high precision in China now.

Determination of Geometry-Based Errors for Interpolated Tool Paths in Five-Axis Surface Machining

2005 ◽  
Vol 127 (1) ◽  
pp. 60-67 ◽  
Author(s):  
O. Remus Tutunea-Fatan ◽  
Hsi-Yung Feng
Keyword(s):  
Tool Path ◽  
Kinematic Chain ◽  
Cnc Machining ◽  
Numerical Control ◽  
Free Form ◽  
Cnc Machine ◽  
Surface Geometry ◽  
Contact Points ◽  
Five Axis ◽  
Deviation Method

Five-axis computer numerical control (CNC) machining is characterized with a multitude of errors. Among them an important component comes from the computer-aided manufacturing software known as the geometry-based errors. A new and accurate method to determine these errors is presented in this paper as opposed to the conventional chordal deviation method. The present method allows establishing the exact linearly interpolated tool positions between two cutter contact points on a given tool path, based on the inverse kinematics analysis of the machine tool. A generic procedure has been developed to ensure wide applicability of the proposed method. Analytical derivation of the geometry-based errors provides insights regarding the origin of these errors and their affecting parameters. Due to the highly non-linear characteristics of the problem, analytical solutions can only be obtained for simple surface geometry. Numerical computation is able to determine the errors for general surface shapes but it would be difficult to uncover further insightful information from the calculated error values. Besides the local surface geometry, the configuration of the kinematic chain of the CNC machine has been found to be the primary factor controlling the resulting value and type of the geometry-based errors. Implementations with a typical complex free-form surface demonstrated that the conventional chordal deviation method was not reliable and could significantly underestimate the geometry-based errors.

Developing and Research on Experiment Device Based on STC90C51 SCM

2013 ◽  
Vol 706-708 ◽  
pp. 757-761
Author(s):  
Jun Han ◽  
Rui Li Chang
Keyword(s):  
Control System ◽  
Pulse Generator ◽  
Numerical Control ◽  
Numerical Control System ◽  
Usb Interface ◽  
Experiment Platform ◽  
Key Press ◽  
Design Idea ◽  
Experiment Device ◽  
Five Axis

In the paper, a SCM experiment device is developed by STC90C51 SCM. The modularizing design idea is adopted for the device. It is composed of five-axis stepping driving module, RS485 communicating module, pulse generator module, USB interface module, double-color lattice and driving module, DA/AD conversion module, dynamic digital dishplay module, temperature testing and infrared receiving module, key-press module, I/O expanding module and so on. The experiment device provides a very good experiment platform for the learner of 51 SCM, and may be a developing board used for the development of numerical control system and intelligent mobile robot. It has a good practical value.

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