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Acceleration and deceleration analysis of the prototype model CNC

Time:2013-04-18 14:35 source: Leecheer Author: Leecheer Click:
The acceleration and deceleration form of the CNC divide into rectilinear and diamond shape.
When the diamond shape make acceleration and deceleration,the acceleration itself also 
has a process of increasing and decreasing, speed smooth, impact is small, but the lag
 of the speed instruction is bigger;The acceleration and deceleration of the rectilinear 
change quickly, the precision of the parts contour is high, but would lead to shock if the 
time constant set to too small, cause the vibration of the machine.So general machine 
will set the fast moving to diamond shape acceleration and deceleration, feed speed 
execute the rectilinear shape acceleration and deceleration.The speed variation can 
be divided into acceleration stage, the normal operation stage and deceleration stage.
If processing step length is less than required accelerate distance, must slow the 
speed before reach the set feed speed ,so that limit the increase of the actual feed 
rate ,difficult to meet the processing requirement.
 
Keywords: Acceleration,and,deceleration,analysis,the,prototype,model, 
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