scholarly journals Numerical Control Machining and Manufacturing Technology Analysis of Mechanical Die Based on Computer Data Control System

2020 ◽  
Vol 1574 ◽  
pp. 012109
Author(s):  
Zhenhua Wang ◽  
Haifan gYin
2010 ◽  
Vol 154-155 ◽  
pp. 1186-1192
Author(s):  
Xin Chun Chen ◽  
Jia Li

Based on the functional features of SIEMENS840D, a plan to realize the machining technology with cycloidal rotary indexing compound locus is provided. The machining principle with cycloidal rotary indexing compound locus method is stated at first, in which technological requirements for numerical control system are determined. Then, in combination with the functional features of SIEMENS840D, the overall structure of numerical control program produced with cycloidal rotary indexing compound locus, as well as the detailed parts of the program are proposed. Finally, the feasibility of the plan is verified with a machining example.


Author(s):  
Mandeep Dhanda ◽  
Aman Kukreja ◽  
SS Pande

This paper reports a novel method to generate adaptive spiral tool path for the CNC machining of complex sculptured surface represented in the form of cloud of points without the need for surface fitting. The algorithm initially uses uniform 2 D circular mesh-grid to compute the cutter location (CL) points by applying the tool inverse offset method (IOM). These CL points are refined adaptively till the surface form errors converge below the prescribed tolerance limits in both circumferential and radial directions. They are further refined to eliminate the redundancy in machining and generate optimum region wise tool path to minimize the tool lifts. The NC part programs generated by our algorithm were widely tested for different case studies using the commercial CNC simulator as well as by the actual machining trial. Finally, a comparative study was done between our developed system and the commercial CAM software. The results showed that our system is more efficient and robust in terms of the obtained surface quality, productivity, and memory requirement.


2012 ◽  
Vol 490-495 ◽  
pp. 456-459
Author(s):  
Jun Han ◽  
Rui Li Chang

Open Computer Numerical Control system (Open CNC) based on PC and the Windows operating system has been a major developing direction and a research focus of the current numerical control technology. At present, there have been all kinds of the Open CNC systems with high-speed and precision servo control boards, but they are too expensive. Therefore, developing an economical and practical motion controller is great significant for middle and small numerical control system


2014 ◽  
Vol 529 ◽  
pp. 139-143
Author(s):  
Wei Hua Jiang ◽  
Yuan Cheng Fan ◽  
Da Zeng

Three-axis processing of laser inner engraving machine control system can carry on multi-axis linkage control. Furthermore, it ensures multi-axis of high feeding speed and trajectory control of high precision. This article introduces the design of laser inner engraving machine movement control system. The core is a digital integrator of linear interpolation algorithm to generate the desired trajectory and control XYZ axis linkage. Wide speed range of servo motor and position detector resolution is adequate to constitute a half-closed loop drive. With integral separation algorithm being introduced in the controller, the speed of numerical control system, track speed and positioning accuracy are guaranteed in order to achieve optimal specification for dynamic and static characteristics of the whole system.


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