When processing workpieces in batches, chamfers vary in depth and the inclined surfaces become skewed. Repeated parameter adjustments bring no improvement, which is usually caused by mechanical faults of the chamfering machine.

Deviation of Spindle Coaxiality

Poor alignment of double-head power heads and excessive bearing clearance result in spindle runout. The cutting depth on both ends becomes inconsistent, leading to obvious differences in chamfer size.

Eccentric Clamping Due to Worn Jigs

Long-term use creates grooves on clamping jaws, causing the workpiece to tilt during clamping. Uneven clamping pressure on both sides makes the workpiece shift slightly, resulting in chamfers deeper on one side and shallower on the other.

Displacement of Feeding Position

Loose feeding guide rails and shifted stoppers change the feeding position of each workpiece. The cutting starting point is unstable, causing batch fluctuations in machining dimensions.

Clearance on the Cutter Head

Loose screws of the cutter holder and improperly installed cutting blades lead to skewed cutting surfaces, which directly produce uneven chamfers.

Machine Vibration and Unstable Feeding

Unleveled machine base causes severe vibration. Fluctuating air pressure or hydraulic pressure changes the feeding speed, making the cutting depth unstable.

Conclusion

Tweaking processing parameters only provides temporary relief. Calibrate spindle coaxiality, replace worn clamping molds, fasten cutter holders and correct feeding positions to eliminate mechanical clearances, so as to guarantee stable chamfering precision.