| 摘要 |
A variable reciprocating and rotating sanding apparatus comprises a drive shaft that is partially surrounded by first and second cams. The cams cooperate to form a cam track. A cross shaft is connected to the drive shaft and extends outwardly therefrom. The cross shaft is disposed in the cam track and serves to drive the cams in response to rotation of the drive shaft. An adjustable housing surrounds the cams and supports a sanding surface. The housing comprises a tapered housing and an expansion sleeve. The expansion sleeve has a plurality of slots allowing the diameter of the expansion sleeve to expand as the expansion sleeve is slid over the tapered housing. The expansion sleeve expands outwardly against the sanding sleeve to frictionally support the sanding sleeve.
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