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With the increasingly widespread use of network technology, it is only a matter of time before the Internet enters the workshop. This will be the main sign of digital manufacturing.
From another point of view, if the enterprise resource plan is limited to only the upper-level informationization of business management departments (people, finance, material, production, supply, sales) or design and development, it is not enough. Equipment - CNC machine tools can not be connected into a network or information, it will inevitably become the bottleneck of the constraints of manufacturing information. Therefore, for a modern manufacturing plant, in addition to improving the numerical control rate of the machine tool, it is necessary to have a two-way, high-speed networked communication function for the owned CNC machine tool so as to ensure information flow between the bottom layer and the bottom layer and the upper layer of the workshop. Communication is smooth and unobstructed.
For example, Mazak Corporation of Japan introduced a new generation of machining centers that not only automate the machining process and tool exchange, but also equipped with an e-Tower external device, including computers, mobile phones, off-camera and in-camera cameras. Ability to communicate voice, graphics, video, and text. The machine tool is linked to the production planning dispatcher and reflects the machine's working status and processing progress in real time. The operator is required to confirm the authority of the fingerprint and observe the process, fault alarm display, and online help elimination on the screen. It is an independent, autonomously managed manufacturing cell.
The company's production planning and scheduling system arranges a week's processing tasks and sends it to the information tower. The tower gives instructions to the operator and displays the machine's real-time working status on the screen. The operator follows the on-screen instructions. When you encounter a problem, you can always check the operating manual in your computer. Under normal circumstances, the machine tool automatically operates, and the operator and the machine tool are separated in time and space. Managers and operators are all equipped with mobile phones. Through the mobile phone, production conditions can be queried, and the expected completion time of the processing, delay report, and fault alarm.
When the machine tool fails, the screen will show the troubleshooting method. Mazak's repair center can see the problem at the same time and provide timely and long-distance assistance to minimize machine downtime.
New generation CNC system
The latest product of Germany's Andron is a new generation of computer-based, open CNC system on the Windows platform.
It uses two Intel processors to communicate with each other through the PCI-PCI bridge. One processor assumes numerical control (NC computer) and the other acts as human-machine interface computer. The NC computer is plugged with an NC CPU card and an NC machine card. The NC machine card is connected to a numerically controlled drive and communicates with the human-machine interface computer via two bus cards with PCI bridges. Man-machine interface The internal bus card of the computer is connected to the control panel of the CNC system and the external interface. Human Interface Computer The CPU card controls the touch LCD display as well as the computer peripherals and network communications.
The traditional numerical control system converts the digital signal of the programming system into a voltage analog signal, and then controls the rotational speed of the driving motor with the voltage magnitude, and in fact is still an analog quantity control.
The greatest feature of the new generation of CNC systems is the use of serial real-time communication interfaces SERCOS and pici-level interpolation technology. It integrates position control, speed control, precision interpolation, and servo motor control into an integrated circuit. The digital servo drive technology connects the numerical control system and the servo controller with the optical fiber through the SERCOS interface, which greatly improves the system's transmission rate and response speed and can reach nanosecond level.
The performance of numerical control system and the improvement of machining accuracy and efficiency of CNC machine tools are inseparable from the interpolation accuracy. After adopting the SERCOS interface technology, Andron developed a picometric interpolation technique that increased the interpolation accuracy from 1×10-7m to 0.6×10-12 m.
The higher the interpolation accuracy, the higher the dimensional accuracy of machined parts. The smaller the surface roughness, the smoother the movement of the machine tool and the smaller the tool wear, which can further reduce the processing cost.
From another point of view, if the enterprise resource plan is limited to only the upper-level informationization of business management departments (people, finance, material, production, supply, sales) or design and development, it is not enough. Equipment - CNC machine tools can not be connected into a network or information, it will inevitably become the bottleneck of the constraints of manufacturing information. Therefore, for a modern manufacturing plant, in addition to improving the numerical control rate of the machine tool, it is necessary to have a two-way, high-speed networked communication function for the owned CNC machine tool so as to ensure information flow between the bottom layer and the bottom layer and the upper layer of the workshop. Communication is smooth and unobstructed.
For example, Mazak Corporation of Japan introduced a new generation of machining centers that not only automate the machining process and tool exchange, but also equipped with an e-Tower external device, including computers, mobile phones, off-camera and in-camera cameras. Ability to communicate voice, graphics, video, and text. The machine tool is linked to the production planning dispatcher and reflects the machine's working status and processing progress in real time. The operator is required to confirm the authority of the fingerprint and observe the process, fault alarm display, and online help elimination on the screen. It is an independent, autonomously managed manufacturing cell.
The company's production planning and scheduling system arranges a week's processing tasks and sends it to the information tower. The tower gives instructions to the operator and displays the machine's real-time working status on the screen. The operator follows the on-screen instructions. When you encounter a problem, you can always check the operating manual in your computer. Under normal circumstances, the machine tool automatically operates, and the operator and the machine tool are separated in time and space. Managers and operators are all equipped with mobile phones. Through the mobile phone, production conditions can be queried, and the expected completion time of the processing, delay report, and fault alarm.
When the machine tool fails, the screen will show the troubleshooting method. Mazak's repair center can see the problem at the same time and provide timely and long-distance assistance to minimize machine downtime.
New generation CNC system
The latest product of Germany's Andron is a new generation of computer-based, open CNC system on the Windows platform.
It uses two Intel processors to communicate with each other through the PCI-PCI bridge. One processor assumes numerical control (NC computer) and the other acts as human-machine interface computer. The NC computer is plugged with an NC CPU card and an NC machine card. The NC machine card is connected to a numerically controlled drive and communicates with the human-machine interface computer via two bus cards with PCI bridges. Man-machine interface The internal bus card of the computer is connected to the control panel of the CNC system and the external interface. Human Interface Computer The CPU card controls the touch LCD display as well as the computer peripherals and network communications.
The traditional numerical control system converts the digital signal of the programming system into a voltage analog signal, and then controls the rotational speed of the driving motor with the voltage magnitude, and in fact is still an analog quantity control.
The greatest feature of the new generation of CNC systems is the use of serial real-time communication interfaces SERCOS and pici-level interpolation technology. It integrates position control, speed control, precision interpolation, and servo motor control into an integrated circuit. The digital servo drive technology connects the numerical control system and the servo controller with the optical fiber through the SERCOS interface, which greatly improves the system's transmission rate and response speed and can reach nanosecond level.
The performance of numerical control system and the improvement of machining accuracy and efficiency of CNC machine tools are inseparable from the interpolation accuracy. After adopting the SERCOS interface technology, Andron developed a picometric interpolation technique that increased the interpolation accuracy from 1×10-7m to 0.6×10-12 m.
The higher the interpolation accuracy, the higher the dimensional accuracy of machined parts. The smaller the surface roughness, the smoother the movement of the machine tool and the smaller the tool wear, which can further reduce the processing cost.
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