5 analysis of the reasons for the positioning offset of the

First of all, the transmission indexing of the rotary indexing table is not accurate, what we call the deviation of the indexing angle of the output axis, for the disc machine, the processing station must be consistent with the stop position of the fixture, and the stop time of the indexing is also To be unified with processing requirements. When deviation occurs during normal use, it is necessary to check whether the angle of the signal cam installed on the input shaft and responsible for signal transmission is consistent with the drive angle of the input shaft of the indexing table. If it is loose, the angle between the two components will be deviated. Shift, then, the signal transmitted through the light sensor or proximity switch will advance or lag behind.

The input shaft of the rotary indexing table rotates 360 degrees continuously. During the rotation, the input cam completes the division and stop of the output shaft, so we must pay attention to the output shaft from moving to static or from static to moving When the input axis rotates to the position of the angle of rest, whether the output axis stops in the static period. For the standard model of the indexing table, to accurately find the standard position of the indexing position, we have made a detailed introduction in the previous soft article, and is equipped with a clear icon. It is necessary to find the position of the keyway in the static period, that is, when the centerline of the keyway input axis is perpendicular to the output axis, it is the center point of the angle of repose of the rotary indexing table.

In the inspection of the indexing angle, all other parts such as the turntable connected with the output shaft of the rotary indexing table need to be removed to ensure that the indexing table is running under no load, and check whether the output shaft has inertia phenomenon, if conditions permit You can return to the production plant to measure with a high-precision goniometer. When it is confirmed that the indexing positioning exceeds the standard indexing, the equipment manufacturer will re-adjust or replace the cam.

Sometimes it also occurs in multi-station operation. The looseness of one station or multiple stations is caused by the damage of the needle roller bearings of the relevant stations, and the roller bearings need to be replaced.

If all stations are loose or inaccurate, it means that the cam mechanism of the rotary indexing table is damaged or broken. This situation is rarely seen in practical applications, and most of them occur when the machine collides or runs seriously beyond the load. Circumstances caused by use. The solution is that only the factory returned has been repaired.