Papers by Keyword: G-Code

Abstract: PMAC motion controllers serve not only as a receiver of the orders from CNC systems of many kinds, but also as a controller of the motion of machine tools’ axles. With G83 as an example, a code commonly seen in the processing cycle of deep holes in CNC machining centers, it is advisable to come up with a method to write a special set of subprograms to invoke PMAC motion controllers with the application of G-code. Based on the method, case programing and machining simulation can be launched. Experiments justify that the method obtained can realize the compiling of fixed cycles with the use of G-code and, in turn, boast substantial significance in the development of open CNC processing machine tools.

Abstract: This paper presents an embedded controller of low cost and high performance for industrial robot. The ARM microprocessor is chosen as the main controller for the processor. Based on the 7-segment cubic spline interpolation algorithm, a real-time control for the robot is implemented. This proposed trajectory method can perfectly generates speed S-curve shape for a start-stop process of the robot. In this article a programming language, G-code, is developped for the robots motion control by using the editing interface we designed specially on PC platform. With all the features for 2-4 degree of freedom robot application, the editing interface has been developed for editing and compiling G-code, which can be downloaded into the microprocessor with the custom communication protocol through communication interface. The programming method of the G-code language is easy to learn and use for the non-professional users. The paper describes the design and implementation in detail for the controller, which was validated on our designed SCARA robot, and it worked reliably.

Abstract: Paper presents the robot equipped with the tool to surface machining. To recognize the machining area USB camera mounted to robots wrist was used. Possibilities of using surface view to self programming the surface finishing were shown. Special PC control system of industrial robot was used.

Abstract: Nowadays, the research scope of Computer Numerically Controlled (CNC) vendors is to provide an interoperable controller to the industry, which has a capability to deal with more intelligent systems. G-code (ISO6983) as an information processing system has been used over the years, but by the development of systems during the generation of computer in industry the shortcomings of this information processing system becomes visible. STEP-NC as a new standard is being developed to remove barriers of ISO6983 such as lack of manufacturing interoperability between CAD/CAM/CAPP/CNC chains. In this paper, the lack of manufacturing interoperability between systems and solution in each one is reviewed, and then the case study has been developed to indicate power of STEP-NC in removing this barrier between different CNC’s.

Abstract: Paper describes the robot equipped with USB camera for capture view of machined objects and tools holder mounted to robots wrist. Showed ideas of using view of machined surface to programming the machining process as art milling or surface grinding. Special pc control of industrial robot system was used.

Abstract: Paper describes the robot equipped with turning tools holder mounted to robots head. Was used head rotation to the tool changing. Robot collaborated with lathe which positioned in plane of robot’s arm moving. Coordinates x and z of robot are used to control of turning. Controlled by PC machining of the workpiece was made with G-code using. Presented system was used to wood turning.

Abstract: 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 .

Abstract: To improve the quality and efficiency of the finish, industrial robots are used to polish the workpiece cavities with complex shapes. This paper presents key technologies of robotic polishing system including path generation, tool orientation control and G-code converting. Robot path data is generated automatically from the NC data, and tool posture angle is superadded to the robotic polishing path according to the requirement of the robotic polishing technology. Specialized software is developed to automatically generate a program, which includes the path data and tool posture angle, and this program is uploaded to the robot controller for the die polishing process.