Matters needing attention in purchasing main shaft accessories of radial drilling machine

Matters needing attention in purchasing main shaft accessories of radial drilling machine

Matters needing attention in purchasing main shaft accessories of radial drilling machine

The selection of spindle accessories has a great influence on the selection of radial drilling machine

1. The wear resistance of the main shaft and the accuracy persistence of the main shaft assembly of radial drilling machine refer to the ability to adhere to its initial manufacturing accuracy for a long time. Therefore, the sliding surfaces of the main shaft assembly, including the cooperation surface of the main shaft journal and the sliding bearing, the guiding surface of the main shaft assembly of radial drilling machine moving axially, the front end of the main shaft and the inner taper hole, are necessary to have certain hardness and wear resistance.

2. Spindle stiffness refers to the ability that the spindle assembly can still adhere to a certain working accuracy under the effect of external force. When the stiffness is lacking, it not only affects the machining accuracy and surface quality, but also simply leads to vibration.

3. Temperature rise and thermal deformation, temperature rise will lead to thermal deformation of radial drilling machine parts, change the relative orientation of the spindle rotation center, affect the machining accuracy, and too high temperature will change the gap of bearings and other components, damage the smooth conditions, accelerate wear and even hold the shaft.

4. Whether the spindle has good vibration resistance, the radial drilling machine should choose the spindle with good seismic resistance, and the seismic resistance of the radial drilling machine refers to the ability of the spindle components to resist forced vibration and self-excited vibration in the cutting process, and adhere to the smooth operation.

5. Whether the rotary accuracy meets the requirements refers to that the radial and axial runout values of the workpiece or tool part of the front-end equipment of the spindle meet the requirements when the radial drilling machine is in the idle and vulgar rotary mode.

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