Inclination angle adjusting device and workpiece attaching device
The present invention facilitates with high accuracy the adjustment of a minute angle degree, and also is capable of sufficiently securing the rigidity of the whole device after the adjustment and provides good operability, accuracy, and rigidity. Provided are a workpiece attaching body having a workpiece attaching surface and a rotating body rotatably supporting the workpiece attaching body. The rotating body has an inclination angle adjusting surface inclined relative to an axis of the rotating body, the workpiece attaching body has opposite to the workpiece attaching surface an inclination angle adjusting surface which is inclined relative to the workpiece attaching surface and which comes in surface contact with the inclination angle adjusting surface of the rotating body, and spherical coupling means is arranged which is for rotatably adjustably coupling the workpiece attaching body and the rotating body about a spherical center on an axis of the rotating body along both inclination angle adjusting surfaces. Thereby, the rotating body and the workpiece attaching body are relatively rotated about the spherical center along both inclination angle adjusting surfaces so as to adjust the inclination angle of the workpiece attaching surface.
1. An inclination angle adjusting device, comprising:
a support;
a movable body coupled to the support; and
an adjustment target section opposite the support having an adjustable inclination angle, wherein
the support has an obliquely inclined inclination angle adjusting surface,
the movable body has an inclination angle adjusting surface that comes in surface contact with the inclination angle adjusting surface of the support and the adjustment target section not in parallel to the inclination angle adjusting surface of the support, and
coupling means for rotatably adjustably coupling the support and the movable body along the inclination angle adjusting surface is provided.
2. A workpiece attaching device, comprising:
a workpiece attaching body having a workpiece attaching surface;
a rotating body rotatably supporting the workpiece attaching body; and
an inclination angle of the workpiece attaching surface being adjustable, wherein
the rotating body has an inclination angle adjusting surface inclined relative to an axis of the rotating body,
the workpiece attaching body has, opposite to the workpiece attaching surface, an inclination angle adjusting surface which is inclined relative to the workpiece attaching surface and which comes in surface contact with the inclination angle adjusting surface of the rotating body, and
spherical coupling means for rotatably adjustably coupling the workpiece attaching body and the rotating body about a spherical center on an axis of the rotating body along both inclination angle adjusting surfaces is provided.
3. The workpiece attaching device according to claim 2 , wherein
the workpiece attaching body is a rotating table having the workpiece attaching surface and the inclination angle adjusting surface of the workpiece attaching body.
4. The workpiece attaching device according to claim 2 , wherein
the workpiece attaching body includes a rotating table having the workpiece attaching surface and an inclination angle adjusting body relatively rotatably interposed between the rotating table and the rotating body,
the inclination angle adjusting surface of the workpiece attaching body is arranged in the inclination angle adjusting body,
on each surface of the inclination angle adjusting body and the rotating table facing each other, a surface-contact phase angle adjusting surface is arranged substantially parallel to the workpiece attaching surface, and
in one of the inclination angle adjusting body and the rotating table, a phase angle adjusting shaft is arranged which protrudes substantially vertically to the other of the inclination angle adjusting body and the rotating table relative to the phase angle adjusting surface so as to relatively rotatably support the other.
5. The workpiece attaching device according to any one of claims 2 to 4 , wherein
an angle degree formed between the rotating body and the inclination angle adjusting surface of the rotating body and an angle formed between the workpiece attaching surface of the workpiece attaching body and the inclination angle adjusting surface of the workpiece attaching body are substantially identical.
6. The workpiece attaching device according to any one of claims 2 to 4 , further comprising:
a tubular fixed shaft for rotatably supporting from an inner peripheral side the workpiece attaching body via a bearing; and
a protrusion shaft protruding inwardly to the fixed shaft from a substantially central side of the workpiece attaching body, wherein
between the protrusion shaft and the fixed shaft, the spherical coupling means is provided.
7. The workpiece attaching device according to claim 6 , wherein
the spherical coupling means comprises:
a spherical washer section which is interposed between the fixed shaft and the protrusion shaft and which is slidingly fitted around the protrusion shaft in an axial direction;
biasing means, fitted around the protrusion shaft, for biasing the workpiece attaching body to a side of the rotating body in the axial direction; and
a thrust bearing interposed between the spherical washer section and the biasing means.
8. The workpiece attaching device according to claim 3 , further comprising:
canceling means for canceling coupling between the rotating body and the workpiece attaching body by a fluid pressure;
regulating means for regulating rotation of the workpiece attaching body by being coupled with the workpiece attaching body in a releasably engaged manner; and
rotation driving means for rotation-driving the rotating body.
9. The workpiece attaching device according to claim 4 , further comprising:
first canceling means for canceling coupling between the rotating body and the inclination angle adjusting body by a fluid pressure;
second canceling means for canceling coupling between the inclination angle adjusting body and the rotating table by a fluid pressure;
first regulating means for regulating rotation of the inclination angle adjusting body by being coupled with the inclination angle adjusting body in a releasably engaged manner;
second regulating means for regulating rotation of the rotating table by being coupled with the rotating table in a releasably engaged manner; and rotation driving means for rotation-driving the rotating body.
10. The workpiece attaching device according to claim wherein
the rotating body rotates about an axis substantially parallel to a grinding wheel shaft of a grinding wheel for surface grinding a workpiece attached on the workpiece attaching surface of the rotating table,
the inclination angle adjusting surfaces formed on each surface of the rotating body and the inclination angle adjusting body facing each other are inclined relative to the axis, and
the phase angle adjusting surfaces formed on each surface of the rotating table and the inclination angle adjusting body facing each other are substantially parallel to the workpiece attaching surface.
11. The workpiece attaching device according to claim 6 , wherein
on the rotating body, the workpiece attaching body for covering the rotating body from above is arranged, and a seal for sealing a gap between the rotating body and the fixed shaft on a lower side of the bearing is arranged.