In the numerical control transformation the
main mechanical part reequips the discussion
A
new numerical control engine bed, must achieve in the design that, Has the high
static dynamic rigidity; Movement vice- between friction coefficient small, the
transmission is ceaseless; cnc milling machine The power is big; Is advantageous for the operation
and the service. When engine bed numerical control transformation should meet
the above requirements as far as possible. Cannot think the numerical control
installment and the ordinary engine bed connects in has met the numerical
control engine bed requirements together, but also should carry on the
corresponding transformation to the major component to enable it to achieve the
certain design request, can obtain the anticipated transformation goal
skids guide rail
Said
to the numerical control lathe that, cnc milling machine the guide rail besides should have the
conventional lathe guidance precision and the technology capability, but also
must have good bears the friction, the attrition characteristic, and the
reduction but sends the dead area because of the friction drag. At the same
time must have the enough rigidity, by reduces the guide rail to distort to
processes the precision the influence, must have the reasonable guide rail
protection and the lubrication。
gear
The
common engine bed gear mainly concentrates in the headstock and the gear box.
In order to guarantee the transmission precision, on the numerical control
engine bed uses the gear precision class is all higher than the ordinary engine
bed. Must be able to achieve the ceaseless transmission in the structure, thus
transforms time, the engine bed main gear must satisfy the numerical control
engine bed the request, by guarantees the engine bed processing precision
kids the guide screw and the ball bearing
guide screw
The
guide screw transmission relates directly to the transmission chain precision.
The guide screw selects mainly is decided requests and drives the torque
request in the job precision. Is not
used by job precision request Gao Shike skids the guide screw, but should
inspect the original guide screw attrition situation, like the pitch error and
the pitch accumulative error as well as matches the nut gap. The ordinary
circumstances skid the guide screw to be supposed not to be lower than 6
levels, the nut gap oversized then replaces the nut. Uses skids the guide screw
relative ball bearing guide screw price to be
low, but satisfies the precision high components processing with
difficulty.
The
ball bearing guide screw rubs loses slightly, the efficiency is high, its
transmission efficiency may above 90%; Precision high, the life is long; When
start moment of force and movement the moment of force approaches, may reduce
the electrical machinery to start the moment of force. Therefore may
satisfiedly compare the high accuracy components processing request
safe
protection
The
effect must take the security as a premise. Transforms in the engine bed must
take the corresponding measure according to the actual situation, cuts
noticeable. The ball bearing guide screw vice- is the precision part, when the
work must take strict precautions against the dust is specially the scrap and
the hard sand grains enters the roller conveyer. On longitudinal guide screw
also coca overall sheet iron safety mask. The big carriage with skids two end
surfaces which the guide rail contacts to have to seal, prevented absolutely
the flinty granulated foreign matter enters the sliding surface damage guide
rail
Sixth, After the engine bed electrical system
transformation, to operates, the
programmers inevitably brings the new request. Therefore ahead of time carries
on new system knowledge training to the operator and the programmers to be
extremely important, after otherwise will affect the transformation the engine
bed rapid investment production. The training content should include the new
operation kneading board disposition, the function, the instruction meaning
generally; New system functional scope, application method and with old system
difference; Maintenance maintenance request; Programming standard and automated
programming and so on.
The key point is makes, gets a good grasp
of the operating manual and the programming instruction booklet. the numerical control transforms se Transforms
the scope according to each equipment
differently, must beforehand design the connection partial transformations, if
transforms completely, should design the electro-mechanical transformation
connection, the operation kneading board control and the disposition, cnc milling machinethe
interconnection partial contacts, the parameter measuring point, services the
position and so on, the request operates and services conveniently, reasonable,
the line moves towards, center the small junction smoothly few, the strong and the
weak electrical noise is smallest, has the suitable allowance and so on.
Partial transformation, but also needs to consider the new old system the
performance match, the voltage polarity and the size transformation, install
the position, the digital-analog conversion and so on, when the necessity must
manufacture the transformation connection voluntarily.
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