Numerical control lathe is retrorse deviation and fixed position precision are very important to the precision of lathe

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  • source:EASCOR CNC Machining
Same table machine tool, differ as a result of adoption level, gets positional precision is not same also, because this is when the precision target that chooses numerical control lathe, also want to note the level that it uses. At present of precision of position of numerical control lathe examine to use international standard ISO230-2 or national level B10931-89 to wait normally. The retrorse deviation that the positional level of numerical control lathe points to axis of each numerical control normally and fixed position precision are retrorse deviation: On numerical control lathe, as a result of component of the drive on catenary of drive of feed of each reference axis (enter electromotor to wait like motor of hydraulic pressure of servo electromotor, servo and pace) drive of retrorse dead band, each mechanical movement the existence of the error such as deputy backlash, cause each reference axis to be in by turning to motion retrorse deviation is formed when be retrorse motion, also weigh backlash normally or lose momentum. To using the numerical control lathe of servo of half closed circuit, the exists to be able to affect lathe fixed position precision of retrorse deviation and repeat fixed position precision, affect the treatment precision of the product thereby. If be when G01 cutting motion, retrorse deviation can affect the precision that interpolation moves, if deviation passes to be able to create round insufficient circle greatly, square not quite honest case; And in motion of G00 fast fixed position, retrorse deviation affects the fixed position precision of the machine tool, make bore, bore hole the between each aperture position loss of accuracy when treatment waiting for aperture. In the meantime, throw the growth of run time as equipment, because wear away,retrorse deviation still can follow those who create kinematic pair gap increase gradually and increase, because this need is fixed,to lathe bed the retrorse deviation of each reference axis undertakes determine and be compensatinged. Fixed position precision: Athletic component is in the locates precision is to show place is measured lathe of numerical control lathe the positional precision that the motion below control of numerical control system can achieve, it is numerical control lathe has a when do not connect lathe at general important precision, the geometrical precision of it and lathe is collective main to generation of lathe cutting precision effect, the pitch error in be being machined to hole especially has conclusive effect. Lathe of a numerical control is OK the fixed position precision that can achieve from it sentences the treatment precision that gives it, undertake to the fixed position precision of numerical control lathe compensation is the necessary way that assures to machine quality detecting mixing so. Origin: Limited company of equipment of numerical control of supersonic speed of happy quiet town CNC Milling CNC Machining