Offset adjustment structure of machine tool tailstock

Abstract

An offset adjustment structure for a machine tool tailstock includes a lower slide, an upper slide, a tailstock, a first hydraulic unit, a connecting seat, and a second hydraulic unit. The upper slide is disposed on the lower slide, and the tailstock is disposed on the upper slide, with a center located inside the tailstock. The first hydraulic unit drives the center to extend or retract along the X direction. The connecting seat has a first inclined surface, and the second hydraulic unit is connected to a wedge with a second inclined surface. When the second hydraulic unit drives the wedge to advance along the Z direction, the inclined contact between the first and second inclined surfaces causes the connecting seat to offset the upper slide and the tailstock. This allows for rapid tailstock offset adjustment using hydraulic drive, improving the time-consuming and inconvenient operation of traditional manual tailstock adjustments for large machine tools.

Claims

1. An offset adjustment structure for a machine tool tailstock, comprising: a lower slide; an upper slide disposed on the lower slide; a tailstock disposed on the upper slide, and a centering pin disposed within the tailstock; a first hydraulic unit disposed on the rear side of the tailstock and connected to a first push rod for driving the centering pin to extend or retract in an X direction; a linkage seat disposed below the upper slide and having a first inclined surface; and a second hydraulic unit disposed on the upper slide and connected to a wedge, the wedge having a second inclined surface corresponding to and contacting the first inclined surface; wherein... When the second hydraulic unit drives the wedge to advance in a Z direction, the contact between the first and second inclined surfaces causes the linkage seat to move the upper slide and the tailstock.

2. The offset adjustment structure of the machine tool tailstock as described in claim 1, wherein the upper slide is provided with a plurality of guide plates, which are respectively located on opposite sides of the wedge portion to limit the displacement of the wedge portion along the Z direction.

3. The offset adjustment structure of the machine tool tailstock as described in claim 1, wherein the second hydraulic unit drives the wedge to displace relative to the upper slide in the Z direction.

4. The offset adjustment structure of the machine tool tailstock as described in claim 1, wherein the first inclined surface and the second inclined surface are configured to make oblique contact.

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