First, the parts of the processing accuracy is poor
Dongguan hardware accessories processing company said that generally due to installation adjustment, the feed dynamics between the axes did not adjust according to the error, or because the use of wear, the machine axis drive chain has changed (such as screw clearance, pitch error Changes, axial turbulence, etc.) It can be solved by re-adjusting and modifying the gap compensation amount.
When the dynamic tracking error is too large and the alarm occurs, check whether the servo motor speed is too high; whether the position detection element is good; whether the position feedback cable connector is in good contact; whether the corresponding analog output latch and gain potentiometer are good or not; The corresponding servo drive is normal.
Second, machine tool movement overshoot caused by poor processing accuracy
Dongguan hardware product processing factory analysis, may be the acceleration and deceleration time is too short, can be appropriate to extend the speed change time; it may be loose connection or poor rigidity between the servo motor and the screw, can properly reduce the position loop gain.
Third, the roundness of two-axis linkage when the excess
Axial deformation of the circle
This deformation may be caused by the lack of mechanical adjustment. The positioning accuracy of the shaft is not good, or the misalignment of the screw clearance may cause roundness error when crossing the quadrant.
2. Oblique ellipse error (ellipse in the direction of 45 degrees)
In this case, first check the position deviation of each axis. If the deviation is too large, adjust the position loop gain to eliminate it. Then check whether the interface board of the rotary drive or induction synchronizer is adjusted properly, and then check whether the mechanical drive backlash is too large and whether the backlash compensation is appropriate.