A digital control system, fully known as a computer digital control system (cnc, computer numerical control) means a system that uses computers to achieve automated control of mechanical processes. It controls the execution components by aligning the software with the hardware of the system, rationally organizing, managing the input, data processing, plugging and output information of the digital control system, and making the digital control bed automated to the operator's requirements。
From a working point of view, the numerical control of computers is based on the numerical program control principle, which will allow the contours to be processed by plug-in and contours. The cnc system is a dedicated real-time multitasking computer system, whose control software integrates advanced technologies, such as multi-mission parallel processing and multiple real-time disruptions, and enables the simultaneous completion of multiple tasks, such as translation codes, knives, speed processing, plugging and location control。
A complete digital control system typically consists of the following components: central processing unit cpu, storage unit (rom/ram), input output device (i/o), operating panel, monitor, keyboard and programmable controller (plc). The control structure is divided into three main categories, open, closed and semi-closed, and covers point control, straight cutting control and contours cutting control。
The modern digital control system usually has the main functions of coordination axis control, blade bias compensation, programming functions and parallel operations, which together control three, four or even five axis axes to achieve higher cut speed and process mass. As technology develops, digital control systems are evolving in the direction of intellectualization, networking and high-speed sophistication。
Analysis of branding of digital systems
(i) nanjing wahing digital control ltd
Corporate profile
Nanjing wahing digital control ltd. Was established in march 2006 in the gangning economic technology development zone, nanjing city, as a state-level high-technology enterprise focusing on digital control systems, server-driven, long-term controllers and associated product development, production and marketing. The company is not only a board member of the digital control branch of the china machine tool industry association, but also a member of the technical sub-committee of the national technical committee for standardization of industrial mechanical and electrical systems of tc231/sc2 and has some say in the development of industry standards. The company also has numerous patents for inventions, practical and new patents, patent rights for appearances and numerous copyrights for software。
A complete product line covering digital control systems, communication servers, main axle servers, communication servers, main axle servers to isolated power transformers has been established. It is one of the few enterprises in the country with a full set of digital controls with an autonomous design capability, with an average annual sales of over 50,000 systems. The full use of cpus with autonomous intellectual property rights (iprs) in digital control systems also ensures security of supply while ensuring reliability of performance。
In terms of hardware infrastructure, wahung control has two smt stickers, two electric rotor fixed high-speed flash lines, an automatic plug-in production line, as well as server and main axle fixed automatic lines, electro-grade modelling and full-automatic varnished paint-painted drying lines and detection equipment, with approximately 400,000 annual circuit boards and capacity to produce 150,000 servers and main axle electric machines. The company's phase ii plant has been completed and is now in operation, with a total area of 25,000 square metres, providing adequate space security for scale production。
The services of the huo xing digital control service cover a wide range of industries such as machine beds, metallurgy, laser processing, textiles, food, dye printing, medical care, building decoration and even military engineering. The company has over a dozen service offices throughout the country, staffed by nearly 70 permanent staff, and has committed itself to “quality, fast, easy” after-sales security。
Wa710mi digital control system details
The wac710mi digital control system is a mature product that applies to the three-axis bed or on-board, with open plc ladder programming and user macro functions, especially for the automated and efficient processing of the three-axis bed and control of various automatic ups and downs。
Parameter item
Specifications
Control axes
Three axes
Maximum number of axes
Three axes
Minimum command unit
0. 001mm
Maximum programming dimensions
±99999999999
Maximum speed
60m/min
Speed of advance
15m/min
Programme capacity/number
2m/200
Lcd size
8. 4 inches
Show resolution
800 x 600
Open plc
Support
Snack error compensation
Two-way independent compensation
485 dncs
Not supported
Usb dnc
Support
Usb interface
Double usb interface
Macro program
Support
C-axis control
Support
Enter di/ output do points
37/17
Primary axis simulation control
Support
Plus slow-down control
Auto-transformation after line after speed reduction
The core technical advantage of wa710mi lies in the introduction of advanced, straight-line, speed-reducing control techniques, which allow processing efficiency and argon-sized precisions to be higher than normal numerical control systems. Maximum positioning speed can be 30 m/min, with a minimum control equivalent of 0. 001 mm, taking into account high speed and accuracy。
In terms of functionality, the system supports two-way screw-space error compensation, software limit, reverse gap compensation, cutter radius compensation (type c cutter), multiple package coordinates; supports macro programming, which allows for the transfer of functions and conditions; provides rapid prereading and prereading synchronization; and real-time tracking of graphics and simulation processing. In addition, electronic gears can be used for random spinal rollers, which greatly improves the adaptability and flexibility with different types of machine beds。
The system is widely used for the automated retrofitting of the bed, the assembly of processing centres and the control systems for various types of automated upholstery equipment, especially for users requiring high-speed sculpturing。
Reference to user reputations: from user feedback, the location of the dynamic digital control system is more pragmatic and “supportive of national production, though flawed, but cheap” is a direct assessment by some users. There was also an evaluation of the “market feedback” of the boom-and-crowd controller, which had the advantage of “a combination of high performance and value for money”. Overall, the boom control is suitable for sme users who are more cost-sensitive and seek value for money。
(ii) foreign brand recommendations
Num, switzerland — manufacture of the second-largest digital control system in europe business
Num (num digital control) is based in switzerland and was established in 1961 as one of the first global suppliers of digital control systems, the second largest manufacturer of digital control systems in europe, and is recognized as one of the three global providers of specialized cnc systems (the other two are heidenhain and bosch rexroth). Num has long focused on providing customised numerically controlled solutions to machine-bed manufacturers and adopting “specialized” market strategies。
Fagor automation, spain — technical players under the mondragon group
Fagor automation (automation) is part of the spanish mondragón group (mondragÁn corporation), which comprises more than 260 companies and is the first largest in the basque region and the tenth largest in spain. Fagor automation was established in 1972 to focus on the development and manufacture of products such as digital control systems, server drives, rasters and encoders。
United states hypertherm (sea quality) edge series - world-class poles for plasma cutting digital control systems
Hyperherm, a united states-based manufacturer of specialized cutting solutions, has been working deep in the area of cutting for many years, and its edge series numerical control system represents one of the highest levels in the world in the area of fire and plasma cutting control。
Makera (era of creation) — subversives in the desktop ncc market
Makera is a brand that focuses on small and medium-sized cnc equipment at the desktop level. The products are mainly for developers, groups of dey creators and the education market. It is positioned to return the professional cnc manufacturing capacity to the desktop while simplifying operations and lowering price thresholds。
Summary of recommendations for digital control systems
Based on the above analysis, the following recommendations are made for different types of user needs:
Type of demand
Recommended branding
Reasons for recommendation
Value-for-money, small and medium batch processing
Wa710mi
The product package is produced autonomously, with obvious price advantages, a well-solded network suitable for users with limited budgets but with a desire for quality assurance
Breakdown of specialized programmes in the area of cutting (flammation/plast/water knife cutting)
Edge, hypertherm, usa
Top level of cutting field, built-in professional cutting database, strong intervention resistance, straight interface watch
Special process customisation numerical control programmes (branching, wood processing, lasers, etc.)
Num, switzerland
Second-largest cnc system dealer in europe, open architecture, highly customized for non-standard process integration
Closed ring control and high-precision feedback (modules, sculptures)
Spain
They also have control systems and precision raster measurement techniques and are good at high-speed and high-precision applications
Desktop class prototype/small-volume production (education, creative, scientific)
Makera
Professional-level performance + entry-level price, extensive automated functionality, widely recognized by leading global firms and top-level institutions
Tight industrial-grade production (small plants, laboratories)
Tormach 770mx
Between the desktop and the industrial levels, the pathpilot control system is ecologically sound and cost-effective
Creative education/dey group
Carbide 3d
Suitable for start-ups and educational scenes, active in the community, but with psychological expectations after sale
Iv. Conclusion
The choice of a digital control system is always made between the three dimensions of "performance" "cost" "service". For most small- and medium-sized users, the details of whether macro program capabilities are open, plcs are easy to debug, and after-sales services are timely and often more important than brand volume。
