Flexible PC-based CNC machine control system

Paprocki, Marcin; Wawrzak, A.; Erwiński, Krystian; Kłosowiak, Marek

doi:10.17814/mechanik.2018.4.46

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…4 Paprocki M's team analyzed the low efficiency of current CNC systems and proposed a new control system for CNC machines, which communicates with auxiliary devices and servo drives via a bus, enabling fast two-way communication between the controller and servo drives, which was shown to be can be applied to different configurations of machines. 5 Lü et al developed an integrated control strategy integrating a zero-phase tracker controller and a modal filter controller to cope with the tracking errors and low machining accuracy that occur in high-speed operation of CNC machine tools, using the principle of zero-pole pair elimination and by setting the inverse function of the transfer function of the system. The results showed that it improved the phase lag of the servo feed system, reduced errors and improved efficiency.…”

Section: Related Workmentioning

confidence: 99%

“…The differential, integral and proportional gains of the PID controller correspond to the connection weights of the neural network. The PID structure can be simulated by expressing the output function of the neuron as a linear function, the equation of which is given in Equation (5).…”

Section: Single Neuron Pid Algorithm Based On Fuzzy Controlmentioning

confidence: 99%

“…Huang X et al proposed a method for pre‐processing signals in the spatial domain and analyzing the signals by Fourier transform to obtain the frequency spectrum, in response to the problem of complex operating conditions and machining faults in CNC machine tools 4 . Paprocki M's team analyzed the low efficiency of current CNC systems and proposed a new control system for CNC machines, which communicates with auxiliary devices and servo drives via a bus, enabling fast two‐way communication between the controller and servo drives, which was shown to be can be applied to different configurations of machines 5 . Lü et al developed an integrated control strategy integrating a zero‐phase tracker controller and a modal filter controller to cope with the tracking errors and low machining accuracy that occur in high‐speed operation of CNC machine tools, using the principle of zero‐pole pair elimination and by setting the inverse function of the transfer function of the system.…”

Section: Related Workmentioning

confidence: 99%

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Single neuron PID based method for deformation suppression during CNC machining of parts

Han

2023

Adv Control Appl

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CNC machining realizes the automatic control of machine tools with digital information, which is an advanced technology widely used in today's machinery manufacturing industry. In the process of NC lathe machining of parts, thin‐walled workpieces are prone to deformation due to poor rigidity and thinner wall thickness. Therefore, it is necessary to study the deformation suppression of NC parts. By combining fuzzy control with single neuron PID and introducing fast non dominated sorting genetic algorithm, the parameters of thin‐walled workpiece milling are optimized. The results show that the neuron PID algorithm of fuzzy control has no overshoot in the environment with or without interference, and has fast response speed and strong anti‐interference ability. In the case verification, the cutting force controlled by fuzzy neuron PID can quickly reach the reference 240 N and remain stable. The removal rate fluctuates less in the range of 8000–12,000. It can improve the metal removal rate while maintaining a constant cutting force, so as to restrain the machining deformation of parts. At the same time, the introduced fast non dominated sorting genetic algorithm can increase the maximum rotational speed to 10,486.5, the maximum feed rate per tooth from 0.075 to 0.112, and the rotational speed is nearly doubled, effectively improving the processing quality, providing a technical reference for the stable control of the NC machining system, and providing a new idea and method for part deformation suppression.

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Section: Related Workmentioning

confidence: 99%

Section: Single Neuron Pid Algorithm Based On Fuzzy Controlmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

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Single neuron PID based method for deformation suppression during CNC machining of parts

Han

2023

Adv Control Appl

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Laboratory stand for multi-axis control of stepper drives via EtherCAT fieldbus

Paprocki

Erwiński

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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In this paper a laboratory stand is presented that was developed for a multi-axis machine stepper drive control system. Each stepper drive utilizes an EtherCAT communication module based on a development board with software developed by the authors. The modules are used to exchange process data with a higher level controller. The EtherCAT communication standard is described including it’s utilization for stepper drive control. A functional description of the developed communication module is also presented. The aim of the Laboratory stand is to conduct research of cyclic communication (1 milisecond or less) and synchronization between multiple drive slave devices and a supervisory controller. The main focus of the presented results was to determine EtherCAT communication cycle jitter on the developed modules. The main aim of the research was to verify whether the data exchange via EtherCAT bus has an impact on the synchronous operation of the multi-axis system.

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Synchronization of Electrical Drives via EtherCAT Fieldbus Communication Modules

Paprocki

Erwiński

2022

Energies

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Synchronization between devices (in particular drive systems) is paramount for multi-axis motion control systems used in Computerized Numerical Control (CNC) machines, robots, and specialized technology machines used in many areas of the manufacturing industry. EtherCAT is an Ethernet-based network that is one of the most popular industrial networks for multi-axis motion control systems. EtherCAT is standardized in the IEC 61158 and IEC 61784 standards. In the article, an EtherCAT communication network for electrical drives is presented. The article focuses on the synchronization in the EtherCAT network consisting of one master device and slave servo drive devices. Special attention is given to synchronization mechanisms in EtherCAT, such as distributed clocks in slave servo drives devices. For this purpose, a laboratory stand was built consisting of two prototype servo drive devices with BLDC motors equipped with EtherCAT communication modules. A description of the working developed EtherCAT communication modules is given. Authors in communication modules ware used an EtherCAT Slave Controller (ESC) chip (AX58100) to implement lower EtherCAT layers. EtherCAT application layer was implemented in software form on a 32-bit microcontroller, based on CANopen over EtherCAT (CoE) CAN in Automation 402 (CiA402) profile. This research’s main contribution was to show the time dependencies regarding synchronization in terms of data flow in the EtherCAT communication stack in slave servo drive devices. The research results showed that the synchronous operation of drives is mainly influenced not by the mechanism of distributed clocks that ensures synchronization in the EtherCAT network but the implementation of the highest layer of the communication stack in slave servo drive devices. Experimental results are presented that prove the modules’ adequacy for use in high-performance motion control systems.

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Flexible PC-based CNC machine control system

Cited by 3 publications

References 6 publications

Single neuron PID based method for deformation suppression during CNC machining of parts

Single neuron PID based method for deformation suppression during CNC machining of parts

Laboratory stand for multi-axis control of stepper drives via EtherCAT fieldbus

Synchronization of Electrical Drives via EtherCAT Fieldbus Communication Modules

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