ABSTRACT

        Hydraulic and pneumatic

 

technology is

 

one

 

of

 

the

 

fastest-growing 

technology

 

in

 

the

 

machinery and equipment.

 

Especially

 

in recent years 

with

 

the

 

microelectronics,   computer   technology

 

combine   to   make   the 

hydraulic technology

 

has entered

 

a

 

new stage of development.

 

At present, 

has   been  widely  applied

 

in

 

various  fields

 

of

 

industry.

 

In  recent  years, 

microelectronics,

 

computer   technology

 

development,

 

manufacturing 

technology

 

of

 

hydraulic

 

components

 

to   further   improve   the

 

hydraulic 

technology

 

not only

 

plays an important role

 

as a basic

 

traditional

 

in form 

but

 

also

 

to

 

the

 

excellent

 

static

 

and dynamic performance

 

as

 

an important 

control

 

means.

Hydraulic transmission

 

have made great progress

 

in

 

all aspects

 

of

 

the

 

leak, 

sewage

 

system, noise reduction,

 

energy efficiency,

 

and materials

 

research 

is indispensable

 

in the NC system

 

elements, parts,

 

Clamp,

 

and

 

the

 

rotation 

of

 

the

 

robot,

 

the

 

robot

 

moves up and down

 

The

 

complete

 

tool change 

action

 

through a valve

 

connection

 

and

 

clamp.

 

Machine

 

lubrication

 

part of 

the same

 

hydraulic

 

principle,

 

through

 

the

 

pump

 

rotating blades

 

driven by 

oil

 

circulation

 

in the pipeline.

Keywords:

 

hydraulic transmission;

 

clamping;

 

tool changer;

 

valve;