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Internal working principle of multi-position cam indexer

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Update time : 2020-03-25 09:51:09

The multi-position cam indexer is an intermittent transmission mechanism. Many people who don't understand will think that the internal structure of the cam indexer will be complicated. Everyone knows its implementation. The principle of the indexer structure is relatively simple, but it is only the internal cam of the cam indexer. The complexity of the curved surface is mainly reflected in the processing of the cam itself. The indexing cam installed in the input shaft is connected to the output shaft tower. The cam rollers radially embedded in the peripheral surface of the output shaft tower are connected to the cam's dimensional support ribs. Make linear contact on their respective slopes.
In the use of the cam indexer, when the input shaft of the indexer rotates, the cam roller rotates the output shaft tower according to the displacement curve on the cam, and at the same time rolls along the slope of the rib. In the area where the rib is balanced with the end face of the multi-position cam indexer, that is, in the range of static energy, the roller is connected to its shaft, but the output shaft tower itself does not rotate. The dimensional support ribs in the same part are in contact with two or more rollers at the same time, so that the rotation of the input shaft can be evenly transmitted to the output shaft. This results in smooth and smooth intermittent motion.
The question about the dynamic and static ratio of the cam drive is big. I am concerned with the time ratio of the cam indexer in the dynamic and static conditions during use. Then, because the interior of the indexer is a more complex curved surface drive, the cam indexer is rough in processing In the case of wear or wear during use, such a phenomenon will occur. If there is a slippage between the cam surface of the dimension support rib and the cam roller, the multi-position cam indexer will be damaged. By rotating the eccentric bearing seat supporting the input shaft and adjusting the distance between the input shaft and the output shaft, the phenomenon of non-slip can be completely eliminated.

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