Back to results
US 2021/0101245 A1Published application
Apparatus and method for edge processing of glass for light coupling
AssigneeCorning Incorporated
InventorsMyeongbo Han, Chan-Kyu Kim, Gautam Narendra Kudva, Shenping Li, Shai Negev Shafrir
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for finishing an edge of a glass sheet are described. The edge of the glass sheet is finished using two grinding wheels mounted on spindles so that the edge of the grinding wheels chamfer the edge of the glass sheet during relative movement of the grinding wheels and the glass sheet.
Claims20
An apparatus for finishing an edge of a glass sheet, the apparatus comprising:
- a worktable which supports the glass sheet while the edges are subjected to grinding and polishing, wherein an X-axis is a direction of lateral movement on a plane of a glass sheet on the worktable, a Y-axis is a direction of longitudinal movement on the plane which is perpendicular to the X-axis, and a Z-axis is a direction of orthogonal movement with respect to the plane;
- a first motor with a first spindle having a first spindle axis of rotation positioned on a first side of the plane, the first spindle axis aligned substantially along the X-axis;
- a second motor with a second spindle having a second spindle axis of rotation positioned on a second side of the plane, the second spindle axis aligned substantially along the X-axis;
- a first grinding wheel mounted on the first spindle, the first grinding wheel substantially disc-shaped with a peripheral edge to chamfer a first edge of the glass sheet using the peripheral edge of the first grinding wheel;
- and
- a second grinding wheel mounted on the second spindle, the second grinding wheel substantially disc-shaped with a peripheral edge to chamfer a second edge of the glass sheet using the peripheral edge of the second grinding wheel.
3 more elements
A method of finishing an edge of a glass sheet, the method comprising:
- supporting a glass sheet on a worktable, a portion of the glass sheet extending a distance from the worktable, the glass sheet comprising a first surface, a second surface opposing the first surface and an end surface, the first surface and end surface intersect along a first edge and the second surface and the end surface intersect along a second edge, wherein an X-axis is a direction of lateral movement on a plane of a glass sheet on the surface, a Y-axis is a direction of longitudinal movement on the plane which is perpendicular to the X-axis, and a Z-axis is a direction of movement orthogonal to the plane;
- contacting the first edge with a peripheral edge of at least one first grinding wheel positioned on a first spindle axis of a first motor, the first grinding wheel substantially disc-shaped;
- contacting the second edge with a peripheral edge of at least one second grinding wheel positioned on a second spindle axis of a second motor, the second grinding wheel substantially disc-shaped;
- and
- producing relative motion between the first and second grinding wheels and the glass sheet during contacting of the first and second grinding wheels with the first and second edges, respectively, to chamfer the first edge and second edge.
2 more elements
Dependencies are inferred from the claim text.