METHOD FOR PROCESSING AND MEASURING ROTATIONALLY SYMMETRIC WORKPIECES AS WELL AS GRINDING AND POLISHING TOOL
First Claim
1. A method for processing a rotationally symmetric workpiece in a space defined by orthogonal x-, y- and z-axes, the workpiece having a symmetry axis parallel to the z-axis, the method comprising:
- rotating the workpiece around the symmetry axis;
moving the workpiece parallel to the z-axis;
providing a rotating, rotationally symmetric tool having a processing surface and a rotation axis parallel with the y-axis;
moving the tool in a plane parallel to a plane defined by the x- and z-axes and at a constant distance in the y-direction from the workpiece symmetry axis, the processing surface of the tool thereby contacting a surface of the workpiece.
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Abstract
A method for processing a rotationally symmetric workpiece, preferably having optically effective surfaces, whose symmetry axis is aligned parallel with the z-axis and which is moveable parallel with the z-axis, using a rotating, rotationally symmetric grinding or polishing tool whose rotation axis is aligned parallel with the y-axis and which is thereby touching the surface of the workpiece by means of a processing surface, the workpiece rotating around its symmetry axis and to a tool for performing said method as well as a method for tactile measuring of such a workpiece. The invention may be used for processing aspheric workpieces having optically effective surfaces, in particular lenses or mirrors that have a non-processable zone, for example a conical bump in the middle of the workpiece.
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Citations
35 Claims
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1. A method for processing a rotationally symmetric workpiece in a space defined by orthogonal x-, y- and z-axes, the workpiece having a symmetry axis parallel to the z-axis, the method comprising:
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rotating the workpiece around the symmetry axis;
moving the workpiece parallel to the z-axis;
providing a rotating, rotationally symmetric tool having a processing surface and a rotation axis parallel with the y-axis;
moving the tool in a plane parallel to a plane defined by the x- and z-axes and at a constant distance in the y-direction from the workpiece symmetry axis, the processing surface of the tool thereby contacting a surface of the workpiece. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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5. A method for processing a rotationally symmetric workpiece in a space defined by orthogonal x-, y-, and z-axes, the workpiece having a symmetry axis parallel to the z-axis, the method comprising:
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rotating the workpiece around the symmetry axis;
moving the workpiece parallel to the z-axis;
providing a rotating, rotationally symmetric tool having a processing surface and a rotation axis parallel with the y-axis;
moving the tool in a plane parallel to a plane defined by the y- and z-axes and intersecting the workpiece symmetry axis, the processing surface of the tool thereby contacting a surface of the workpiece.
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10-24. -24. (canceled)
Specification