| 摘要 |
<p>Described is a spindle mounting head of a machine tool comprising a supporting body (4) with transversal dimensions (d), internally hollow and having an inner surface (5), and connected to the machine (1) at a first end (6); a hollow spindle (8) connected to the supporting body (4), a tool holder shaft (9) passing through the spindle (8) and movable, along a second axis (Z), between a first non-operating configuration, wherein the shaft (9) is stationary and retracted inside the supporting body (4), and at least a second operating configuration, wherein the shaft (9) is placed in rotation and moved along the second axis (Z) outside the supporting body (4). Moreover, the head (3) comprises first first motor means (11), connected to the supporting body (4), for rotating the hollow spindle (8) and the tool holder shaft (9) and second motor means (12) connected to the tool holder shaft (9) for linearly moving the latter along the second axis (Z). The second motor means (12) have a relative third axis (W) of motion transmission connected to the tool holder shaft (9). The second motor means are located inside the transversal dimensions (d) of the supporting body (4).</p> |
