Device and method for machining of an optical lens

Patent metadata

Field	Value
Publication number	US-10406646-B2
Application number	US-201214002761-A
Country	US
Kind code	B2
Filing date	Feb 28, 2012
Priority date	Mar 1, 2011
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

A device and a method for polishing of an optical lens by means of rotary tool are proposed, a fixture for the lens being pivotable around a pivoting axis transversely to the axis of rotation by means of a push-rod adjustment and being pivotable up out of a machining position such that the lens can be changed from overhead. This allows a compact structure and easy changing of the lens.

First claim

What is claimed is:

1. A device for machining of an optical lens by means of a tool which can be turned around a turning axis, comprising:
a motor for rotating the lens, during machining, around an axis of rotation; and
a working space in which the machining of the lens takes place;
a fixture positioned for holding a blocked lens in the working space and supporting the blocked lens during machining of the lens;
wherein the fixture is pivotable transversely to the axis of rotation in a vertical plane between a horizontal working orientation and an upward facing, lens changing position in which the lens can be changed from overhead around a pivoting axis running perpendicular to the axis of rotation by means of a push-rod adjustment device.

2. The device as claimed in claim 1 , wherein the pivoting axis runs at least essentially horizontally.

3. The device as claimed in claim 1 , comprising a second fixture positioned for holding a second lens at a location in said working space enabling machining of the second lens; and a second motor for simultaneous machining and rotating the second lens during machining.

4. The device as claimed in claim 3 , wherein the fixtures are pivotable up together with said motors out of said working space around the pivoting axis.

5. The device as claimed in claim 1 , wherein the fixture is pivotable around the pivoting axis by at least essentially 90 degrees.

6. The device as claimed in claim 1 , wherein the motor together with the fixture is located in the working space.

7. The device as claimed in claim 1 , wherein the tool is a polishing tool.

8. The device as claimed in claim 1 , comprising a first drive for linear displacement of the fixture transverse to the turning axis.

9. The device as claimed in claim 8 , wherein the first drive is at least one of located outside of the working space, is a linear drive, and has a ball screw.

10. The device as claimed in claim 8 , further comprising a second drive for pivoting of the fixture.

11. The device as claimed in claim 10 , wherein the second drive comprises a second slide for linear movement of a push-rod of the push-rod adjustment device.

12. The device as claimed in claim 10 , wherein the second drive is located on a first slide which is movable by means of the first drive.

13. The device as claimed in claim 10 , wherein the second drive is at least one of located outside the working space, is a linear drive, and has a ball screw.

14. A device for machining of an optical lens by means of a tool which can be turned around a turning axis, comprising:
a motor for rotating the lens during machining around an axis of rotation, the axis of rotation running at least essentially horizontally during machining in a machining position;
a working space in which the machining of the lens takes place;
a fixture positioned for holding a blocked lens in the working space and supporting the blocked lens during machining of the lens;
a first drive for linear displacement of the fixture transverse to the turning axis; and
a second drive for pivoting the fixture by means of a push-rod adjustment device,
wherein the second drive comprises a second slide for linear movement of a push-rod of the push-rod adjustment device, such that the fixture is pivotable in a vertical plane between a horizontal working orientation and an upward facing, lens changing position in which the lens can be changed from overhead around a pivoting axis by linear movement of said push-rod.

15. The device as claimed in claim 14 , wherein the pivoting axis runs perpendicular to the axis of rotation.

16. The device as claimed in claim 14 , wherein the pivoting axis runs at least essentially horizontally.

17. The device as claimed in claim 14 , wherein the fixture is pivotable around the pivoting axis by at least essentially 90 degrees.

18. The device as claimed in claim 14 , comprising a second fixture positioned for holding a second lens at a location in said working space enabling machining of the second lens; and a second motor for simultaneous machining and rotating of the second lens during machining.

19. The device as claimed in claim 18 , wherein the fixtures are pivotable up together with the assigned motors out of the working space around the pivoting axis.

20. A device for machining optical lenses by means of tools which can be turned around turning axes, comprising:
a working space in which the machining of the lens takes place;
two fixtures in said working space for simultaneous holding of assigned lenses;
two motors for simultaneously rotating and machining the assigned lenses held by said fixtures around axes of rotation, the axes of rotation running at least essentially horizontally during machining in a machining position; and
wherein the fixtures together with said motors are pivotable up out of the machining position around a pivoting axis in a vertical plane between a horizontal working orientation and an upward facing, lens changing position in which the lenses can be changed from overhead; and
further comprising a first drive for linear displacement of the fixture transverse to the turning axis and a second drive for pivoting the fixture, wherein the second drive comprises a slide for linear movement of a push-rod of a push-rod adjustment device of the second drive.

21. The device as claimed in claim 20 , wherein the pivoting axis runs perpendicular to the axis of rotation.

22. The device as claimed in claim 20 , wherein the pivoting axis runs at least essentially horizontally.

23. The device as claimed in claim 20 , wherein the fixture is pivotable around the pivoting axis by at least essentially 90 degrees.

Assignees

• Schneider Gunter
• Buchenauer Helwig
• Boerner Ulf
• Kraemer Klaus
• Schneider Gmbh & Co Kg

Inventors

• Schneider Gunter
• Buchenauer Helwig
• Börner Ulf
• KRäMER KLAUS

Classifications

• B24B13/043

  using cup-type grinding wheels · CPC title

• B24B13/00 Primary

  Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor (edging optical work, e.g. lenses, prisms B24B9/14) · CPC title

• B24B1/00 Primary

  Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes · CPC title

• B24B5/16

  for grinding peculiarly surfaces, e.g. bulged · CPC title