New trends in the development of machine tool technology (7)


The concept of GEFanuc's OpenFacroryCNC includes not only the CNC functions installed on the machine, but also some new functions added to the server via Ethernet, such as obtaining relevant documents related to machine tools, CNC, production scheduling and machining of workpieces. Data, using "shopping programming" ("ShopFloorProgramming" for a CAM professional company in the United States - Gibbs software products) software programming, visual DNC, visual MEM (MachineEventMonitoring) machine event monitoring and local hard disk, PCMCIA standard flash storage Card and other hardware.

The entire network leads to the manager, general manager and maintenance manager in charge of production, so that these personnel can keep abreast of the current situation.

It is also possible to network existing existing machines. Whether these machines are equipped with GEFanuc's previous systems or CNC systems from other companies, GE Fanuc can network them. It is said that the method is to Screw an industrial PC with "two screws". If it is the company's previous products, it needs to add a HSSB (HighSpeed ​​Serial Bus) board. In addition, GE has teamed up with CISCO, the world-renowned network equipment manufacturer, to form GECISCO Industrial Networks, which is responsible for any level of network construction in the industrial sector, from a small workshop to a factory and networking of the company's global operations. We also found companies that specialize in networking CNCs, such as e-ManufcturingNetworkslnc.

From the products of the three companies introduced above, we can see:

(1) In the past, machine tool companies only sold machine tools, and CNC systems companies only sold systems. Now some machine tool and system companies sell their products together with the network (including supporting software). The reason is that Mazak said that in the case of multi-variety, single-piece small batch production (in the machinery industry, this production mode accounts for about 70% of the total output value), the cutting time of the machine is only 25%, that is, 75% of the time. Get used. If you only pay attention to the efficiency of a single machine, a single system, just make a contribution on 25%. Only networking can increase 25% to 65% (Maxak's point of view). Visible networking is not an end, but a means of improving productivity.

This is also a "set" concept, but it is a high-level set of processing information, and is different from the previous supply.

(2) Software modules that are only networked without corresponding supporting software can't make a difference. It is impossible to increase the cutting time to 65% due to the low software function. It is obvious that the software-concentrated knowledge is important. The aforementioned software modules (especially Otsuka's KCMAC module contains digital worker skills, which can be accumulated to create new skills, new know-how, etc.) and its integration with production management modules means past data processing. In the transition to knowledge processing, the content and meaning of a large amount of information on the Internet are processed in depth and transformed into directly usable knowledge, which is a high-level application of computers. This shows that the informationization of the entire manufacturing industry is transitioning from low-level data processing to high-level knowledge processing.

(3) Mazak and Daxie both produce machine tools and homemade CNC systems (Mazak takes hardware from a professional factory--Mitsubishi Electric Co., Ltd., and concentrates on developing unique software), and focuses on the manufacture of machine tools. Therefore, the main software modules of the networking support are almost entirely developed for their own applications and are constantly being improved in use. They are full of confidence in their maturity. GEFanuc's software modules contain more mature third-party software on the market, such as Gibbs' CAM software mentioned earlier. But they also include software developed by themselves, such as CIMPLICITY software that collects shop floor data. Whether Mazak, Otsuka or GE Fanuc systems contain PCs (respectively referred to as: Converged PCs, PC-based and embedded PCs), they provide excellent conditions for third-party software, standard hardware, interfaces, and more.

(4) Daxie regards the CNC system as the core of the “IT Plaza”. GEFanuc refers to its CNC as a high-performance information center. It can be seen that the CNC system plays an important role in networking.

(5) The essence of the high-level informationization of mechanical processing is to construct the CIMS system from the bottom of the basic equipment to improve productivity. It is better or worse than building a CIMS system from the top down. It seems worth exploring.

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