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bravo是什么意思机械类-英文翻译知识讲解

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2021-01-19 09:34
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邮购目录-bravo是什么意思

2021年1月19日发(作者:抵制)



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NC Technology

1

Research current situation of NC lathe in our times

Research and development process to such various kinds of new
technologies as numerical control lathe , machining center , FMS ,
CIMS ,etc. of countries all over the world, linked to with the
international economic situation closely. The machine tool industry
has international economy to mutually promote and develop, enter 21
alert eras of World Affairs, the function that people's knowledge
plays is more outstanding , and the machine tool industry is regarded
as the foundation of the manufacturing industry of the machine, its
key position and strategic meaning are more obvious. Within 1991-1994
years, the economic recession of the world, expensive FMS, CIMS
lowers the temperature, among 1995-2000 years, the international
economy increases at a low speed, according to requisition for NC
lathe and the world four major international lathes exhibition in
order to boost productivity of users of various fields of present
world market (EMO , IMTS , JIMTOF , China CIMT of Japan of U.S.A. of
Europe), have the analysis of the exhibit, there are the following
several points mainly in the technical research of NC lathe in our
times:


1
)、
Pay more attention to new technology and innovation

Worldwide , are launching the new craft , new material , new
structure , new unit , research and development of the new component
in a more cost-effective manner, developmental research of for
instance new cutter material , the new electric main shaft of main
shaft structure , high speed , high-speed straight line electrical
machinery ,etc.. Regard innovating in improvement of the processing
technology as the foundation, for process ultra and hard difficult to
cut material and special composite and complicated part , irregular
curved surface ,etc. research and develop new lathe variety
constantly.


2
)、
Improve the precision and research of machine tooling
In order to improve the machining accuracy of the machining center ,
are improving rigidity of the lathe , reduction vibration constantly,
dispel hotly and out of shape, reduce the noise , improve the
precision of localization of NC lathe , repeat precision , working
dependability , stability , precision keeping, world a lot of country
carry on lathe hot error , lathe sport and load out of shape software
of error compensate technical research, take precision compensate ,
software compensate measure improve , some may make this kind of
error dispel 60% already. And is developing retrofit constantly,
nanometer is being processed.


3
)、
Improve the research of the machine tooling productivity
World NC lathe, machining center and corresponding some development
of main shaft , electrical machinery of straight line , measuring
system , NC system of high speed, under the prerequisite of boosting
productivity.


4
)、
What a lot of countries have already begun to the numerical
control system melt intelligently, openly, study networkedly
A


elligent research of the numerical control system
Mainly showing in the following aspects: It is intelligent in order
to pursue the efficiency of processing and process quality, the self-
adaptation to the processing course is controlled, the craft
parameter produces research automatically; Join the convenient one in
order to improve the performance of urging and use intelligently, to
the feedback control , adaptive operation , discerning automatically
load selects models automatically , since carries on research whole
definitely ,etc. of the electrical machinery parameter; There are
such research of the respect as intelligent automatic programming ,
intelligent man-machine interface , intelligence diagnosing ,
intelligent monitoring ,etc..

B

The numerical control system melts and studies open
Mainly showing in the following aspects: The development of the
numerical control system is on unified operation platform, face the
lathe producer and support finally, through changing, increasing or
cutting out the structure target(numerical control target ), form the
seriation, and can use users specially conveniently and the technical
know-how is integrated in the control system, realize the open
numerical control system of different variety , different grade fast,
form leading brand products with distinct distinction. System
structure norm of the open numerical control system at present, norm ,
disposing the norm , operation platform , numerical control
systematic function storehouse and numerical control systematic
function software developing instrument ,etc. are the core of present
research to pass through.

C

Meeting the manufacture system of the production line , demand for
the information integration of the manufacturing company networkedly
greatly of numerical control equipment, it is a basic unit of
realizing the new manufacture mode too.

2

Classification of the machining center

1

Process according to main shaft space position when it
classifies to be as follows, horizontal and vertical machining
center.
Horizontal machining center, refer to the machining center that the
axis level of the main shaft is set up . Horizontal machining center
for 3-5 sport coordinate axis, a common one three rectilinear motion
coordinate axis and one turn the coordinate axis of sports round
(turn the workingbench round), it can one is it is it finish other 4
Taxi processing besides installing surfaces and top surfaces to
insert to install in work piece, most suitable for processing the
case body work piece . Compared with strength type machining center
it, the structure is complicated, the floor space is large, quality
is large, the price is high.
Vertical machining center, the axis of the main shaft of the vertical
machining center, in order to set up vertically, its structure is
mostly the regular post type, the workingbench is suitable for
processing parts for the slippery one of cross, have 3 rectilinear
motion coordinate axis generally , can find a room for one horizontal
numerical control revolving stage (the 4th axle ) of axle process the
spiral part at workingbench. The vertical machining center is of
simple structure, the floor space is small, the price is low, after
allocating various kinds of enclosures , can carry on the processing
of most work pieces .
Large- scale gantry machining center, the main shafts are mostly set
up vertically, is especially used in the large-scale or with
complicated form work piece , is it spend the many coordinate gantry
machining center to need like aviation , aerospace industry , some
processing of part of large-scale steam turbine.
Five machining centers, this kind of machining center has function of
the vertical and horizontal machining center, one is it after
inserting , can finish all five Taxi processing besides installing
the surface to install in work piece, the processing way can make
form of work piece error lowest , save 2 times install and insert
working, thus improve production efficiency , reduce the process cost.
(2)Classify by craft use
Is it mill machining center to bore, is it mill for vertical door
frame machining center , horizontal door frame mill the machining
center and Longmen door frame mill the machining center to divide
into. Processing technology its rely mainly on the fact that the door
frame is milled, used in case body, shell and various kinds of
complicated part special curve and large processes , curved surface
of outline process, suitable for many varieties to produce in batches
small.
Complex machining center, point five times and compound and process
mainly, the main shaft head can be turned round automatically, stand,
lie and process, after the main shaft is turned round automatically,
realize knowing that varies in the horizontal and vertical direction.
(3)Classify by special function
Single workingbench , a pair of workingbench machining center;
Single axle , dual axle , three axle can change machining center ,
main shaft of case;
Transfer vertically to the tower machining center and transfer
One hundred sheets of storehouses adds the main shaft and changes one
one hundred sheets of machining centers;
One hundred sheets of storehouses connects and writes hands to add
the main shaft and change one hundred sheets of machining centers;
One hundred sheets of storehouses adds the manipulator and adds one
pair of main shafts to transfer to the tower machining center.

3

Development trend of the current numerical control lathe
At present, the advanced manufacturing technology in the world is
rising constantly, suchapplication of technology as ultrafast
cutting , ultraprecision processing ,etc., the rapid development of
the flexible manufacturing system and integrated system of the
computer one is constant and ripe, have put forward higher demand to
the process technology of numerical control. Nowadays the numerical
control lathe is being developed in several following directions.

1

.
The speed and precision at a high speed , high accuracy are
two important indexes of the numerical control lathe , it concerns
directly that processes efficiency and product quality. At present,
numerical control system adopt-figure number, frequency high
processor, in order to raise basic operation speed of system.
Meanwhile , adopt the super large-scale integrated circuit and many
microprocessors structure, in order to improve systematic data
processing ability , namely improve and insert the speed and
precision of mending operation. Adopt the straight line motor and
urge the straight line of the lathe workingbench to be servo to enter
to the way directly, it is quite superior that its responds the
characteristic at a high speed and dynamically. Adopt feedforward
control technology , make it lag behind error reduce greatly , thus
improve the machining accuracy cut in corner not to track.

For meet ultrafast demand that process, numerical control lathe
adopt main shaft motor and lathe structure form that main shaft unite
two into one, realize frequency conversion motor and lathe main shaft
integrate , bearing , main shaft of electrical machinery adopt
magnetism float the bearing , liquid sound pigeonhole such forms as
the bearing or the ceramic rolling bearing ,etc.. At present, ceramic
cutter and diamond coating cutter have already begun to get
application.

2

.
Multi- functional to is it change all kinds of machining
centers of organization (a of capacity of storehouse can up to 100 of
the above ) automatically to furnished with, can realize milling
paring , boring and pares , bores such many kinds of processes as
paring , turning , reaming , reaming , attacking whorl ,etc. to
process at the same time on the same lathe , modern numerical control
lathe adopt many main shaft , polyhedron cut also , carry on
different cutting of way process to one different position of part at
the same time. The numerical control system has because adopted many
CPU structure and cuts off the control method in grades, can work out
part processing and procedure at the same time on a lathe , realize
so-called
editor
one in flexible manufacturing system and computer, numerical control
system have remote serial interface , can network , realize data
communication , numerical control of lathe, can control many
numerical control lathes directly too.

3

.
Intelligent modern numerical control lathe introduce the
adaptive control technology, according to cutting the change of the
condition, automatic working parameter, make the processing course
can keep the best working state , thus get the higher machining
accuracy and roughness of smaller surface , can improve the service
life of the cutter and production efficiency of the equipment at the
same time . Diagnose by oneself , repair the function by oneself,
among the whole working state, the system is diagnosed, checked by
oneself to CNC system and various kinds of equipment linking to each
other with it at any time. While breaking down , adopt the measure of
shutting down etc. immediately , carry on the fault alarm, brief on
position , reason to break down ,etc.. Can also make trouble module
person who take off automatically , put through reserve module , so
as to ensure nobody demand of working environment. For realize high
trouble diagnose that requires , its development trend adopts the
artificial intelligence expert to diagnose the system.

4

.
Numerical control programming automation with the development
of application technology of the computer, CAD/CAM figure interactive
automatic programming has already get more application at present, it
is a new trend of the technical development of numerical control. It
utilize part that CAD draw process pattern , is it calculate the

邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思


邮购目录-bravo是什么意思



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