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The research of open numerical control, which is used PLC and the frequency converter in order to carry out counter-rotating and viable speed, is adopted the imbedding open numerical control. The IPC, as the platform of the open numerical, can make the utmost of the software and hardware resource of the computer and the latest development result. The mechanical structure of spindelantrieb can be into...
Rigid tapping is a novel tapping process and is extensively used to produce internal threads on a manufactured mechanical part because of its precise and efficient performances. However, it is difficult in practice to design control gains for controlling rigid tapping processes using systematic approaches because the operational environments in the rigid tapping processes are usually unknown and cannot...
Based on the 840D and PLC Discussion and Analysis of CNC machining centers control system is achieved. This paper focuses on PLC for the control of the Dividing Head, PLC for the control of the Multi-spindle and PLC on the Recognition of cutter and choice knife.
The paper used Windows XP as the operating system, and used Visual C++ 6.0 software as the developing tool, developed a system about simulation of CNC machining on two-dimensional graphics. The purpose is to complete the simulation of NC machining process with computer program. This paper illustrates the principles of programming and establishes a number of two-dimensional graphics simulations. The...
Introduce a CNC system for nonstandard machine tool based on PLC and programmable multi-axis controller, which is appLied to CNC machine. Comparing with traditional CNC system, the proposed design has not only simpLified machine tool structure and control system, but also make user's program simpLification. The control functions of PLC are introduced and the PLC ladder diagram is given out.
PID control is widely used in process control. But the method of extracting differential signal is so simple that the extracted bad differential signals do not adapt to the high quality requirement. Based on this, the paper presents the high order differentiator (HOD) that does not rely on the model of the plant and can extract high-quality differential signal and its high order differential signals...
Developed by the PMAC motion control card and PC, consisting of an open-architecture CNC machining systems. The system is Windows operating system platform; describes the composition of the system hardware and software, PMAC controller of the PID algorithm and parameter adjustment aspects. The practical application proves that the system, high reliability, ease of maintenance to meet market demand.
This paper presented fieldbus SOPC-based FSB (fast serial bus) controller using FPGA technology for CNC application, which used H/S(hardware/software) codesign method. This controller completed control of AL (application layer), DLL(data link layer) and PL(physical layer). In the controller, CAN-compatible hardware designed by VHDL handled with DLL and PL of FSB, while software run in soft processor...
A FPGA-based full-digital NC system is designed, various functions such as servo control, USB communication control, encoder signal control and digital-analog expansion interface control are integrated in the FPGA. The direct digital communication between CNC and drive system as well as other peripherals are realized in this system. The method of direct digital communication and the designing process...
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