| 摘要 |
<p>Drilling head (11) for printed circuit boards, including a central body (13) which is associated with a drilling spindle (15), sliding along a direction "Z" with respect to the central body (13) by means of a pneumostatic bushing (41), and bearing a drilling tool (17), in which said spindle (15) is associated with the central body (13) with the interposition of a pair of linear motors (19a, 19b) arranged at 180° around "Z" axis, so that the resultant force substantially coincides with the axis of the spindle.</p> |
