| 摘要 |
An apparatus and method for both rotating a cylinder about its center axis and translating the cylinder linearly along the same axis. The invention is suitable for X-raying rockets and other cylindrical objects. Multi-axis movement is accomplished by two sets of rollers: rotational and translational. The translational roller set is held in a retracted and unengaged position while the cylinder rests on the rotational roller set. Movement about the axis of the rotational roller set is allowed. When the translational roller set is engaged with the cylinder, the cylinder is disengaged from the rotational roller set, and movement about the axis is not allowed, but linear movement is allowed. The action may be reversed and repeated. The rollers or the cylinder may be powered by motor or manual device.
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