The Numerical Control Engine Bed Transforms
Numerical control system development summary
brief history and tendency
In
1946 the first electronic accounting machine was born in the world, this
indicated the humanity created has been possible to strengthen and partially to
replace the mental labor the tool. Cnc machining It with the humanity
these which in the agriculture, the industry society created only is
strengthens the physical labor the tool to compare, got up the quantitive leap,
entered the information society for the humanity to lay the foundation.
After 6 years, in 1952, computer technology applied to the engine bed ,
the first numerical control engine bed were born in US. From this time on, the
traditional engine bed has had the archery target change. Since nearly half
century, the numerical control system has experienced two stages and six
generation of development.
Numerical control (NC) stage (1952 ~
1970)
The
early computer operating speed is low, was not big to then science computation
and the data processing influence, but could not adapt the engine bed real-time
control request. The people can not but use numeral logic circuit "to
build" to become an engine bed special purpose computer to take the
numerical control system, Cnc machiningis called
the hardware connection numerical control (HARD-WIRED NC), Jian Chengwei
numerical control (NC). Along with the primary device development, this stage
has had been through repeatedly three generations, namely 1952 first generation
of -- electron tube; 1959 second generation of -- transistor; 1965 third
generation -- small scale integration electric circuit.
Computer numerical control (CNC) stage (in
1970 ~ present)
In
1970, the general minicomputer already appeared and the mass production.
Thereupon transplants it takes the numerical control system the core part, from
this time on entered the computer numerical control (CNC) the stage
("which should have computer in front of the general" two characters
to abbreviate). In 1971, American INTEL Corporation in the world first time the
computer two most cores part -- logic units and the controller, used the large
scale integrated circuit technology integration on together the chip, called it
the microprocessor (MICROPROCESSOR), also might be called the central
processing element (to be called CPU)
The
microprocessor is applied to 1974 in the numerical control system. This is
because minicomputer function too strong, controlled an engine bed ability to
have wealthily (therefore once uses in controlling the multi- Taiwan engine bed
at that time, called it group control), was inferior to used the microprocessor
economy to be reasonable. Moreover then small machine reliability was not
ideal. The early microprocessor speed and the function although insufficiently
are also high, but may solve through the multi-processor structure. Because the
microprocessor is the general-purpose calculator core part, therefore still was
called the computer numerical control
In
1990, PC machine (personal computer, domestic custom had called microcomputer)
the performance has developed to the very high stage,Cnc machining may satisfiedly take the numerical control system core part the
request. The numerical control system henceforth entered based on the PC
stage. In brief, the computer numerical
control stage has also experienced three generations. Namely 1970 fourth
generation of -- minicomputer; 1974 five dynasties -- microprocessor and 1990
sixth generation -- (overseas was called PC-BASED) based on PC.
Also must point out, although overseas already renamed as the computer
numerical control (namely CNC).
Also must point out, although overseas already renamed as the computer
numerical control (namely CNC), but our country still the custom called the
numerical control (NC). Therefore we daily say "numerical control",
the materially already was refers to "computer numerical control".
