Abrading – Precision device or process - or with condition responsive... – With indicating
Patent
1994-02-14
1995-04-25
Kisliuk, Bruce M.
Abrading
Precision device or process - or with condition responsive...
With indicating
451 5, 451412, 451 44, 451211, 451242, B24B 910
Patent
active
054094178
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention relates to numerically controlled grinding machine for plate glass, and particularly for grinding the periphery edges of plate glass.
BACKGROUND ART
In a conventional grinding machine for plate glass, when the periphery edge of plate glass is to be chamfered or ground round, a grinding wheel for chamfering is prepared and used for chamfering purposes, or a grinding wheel for forming a round edge is prepared and used for rounding purposes.
When a plate glass like a car pane is ground round in a part of the periphery edge thereof, and is chamfered in the other part of the periphery edge thereof, for example, a specified part of the periphery edge is firstly ground by a grinding wheel for forming a round edge, and then the remaining part of the periphery edge is ground by a chamfering wheel replacing the grinding one. However, such a means is very inefficient in working because it will take time to replace the grinding wheel and the grinding program must be run twice.
In view of the above, it is an object of the present invention to provide a numerically controlled grinding machine for plate glass which is capable of forming a round edge and a chamfered edge on required parts of plate glass by running the grinding program once without replacing the wheel.
DISCLOSURE OF THE INVENTION
According to the present invention, the above object is achieved by a numerically controlled grinding machine for plate glass, comprising a table for supporting the glass plate, a rotating drive device connected to a grooved grinding wheel which grinds by rotation thereof the periphery edge of the plate glass supported by the table to rotate the grooved grinding wheel, a first moving device for relatively moving the grooved grinding wheel relative to the plate glass in a first direction parallel to the surface of the plate glass as well as in a second direction parallel to the surface of the plate glass and perpendicular to the first direction, a second moving device for relatively moving the grooved grinding wheel relative to the plate glass in a third direction perpendicular to the surface of the plate glass, and a numerical control device connected to the first and second moving devices for numerically controlling the movements of the first and second moving devices.
According to the present invention, the above object is also achieved by the numerically controlled grinding machine for plate glass which includes a orbiting device connected to the grooved grinding wheel to orbit the grooved grinding wheel in the surface of the plate glass, the numerical control device being connected to the orbiting device in order to control the orbiting operation of the orbiting device numerically.
In addition to the first moving device, the numerically controlled grinding machine for plate glass according to the present Invention include the second moving device for relatively moving the grooved grinding wheel relative to the plate glass in the third direction perpendicular to the surface of the plate glass. This second moving device as well as the first moving device are connected to the numerical control device to be controlled numerically. Thus, in grinding the periphery edge of the plate glass, the periphery edge of the plate glass is rendered round by causing the second moving device to move the grooved grinding wheel in the third direction relative to the plate glass to touch the groove of the grinding wheel equally to the periphery edge of the plate glass. The periphery edge of the plate glass is chamfered by causing the second moving device to move the grooved grinding wheel to the plate glass in the third direction relative to touch the groove of the grinding wheel unequally to the periphery edge of the plate glass. Therefore, both the round and chamfered edges are formed on the required part of the periphery edge of the plate glass without replacing the grooved grinding wheel by running the grinding program once. This greatly reduces the operation hours as well as highly simplifies the g
REFERENCES:
patent: 3942287 (1976-03-01), Tokunaga
patent: 4587764 (1986-05-01), Leone et al.
patent: 4685180 (1987-08-01), Kitaya et al.
patent: 4984351 (1991-01-01), Matsuyama et al.
Bando Kiko Co., Ltd.
Kisliuk Bruce M.
Morgan Eileen P.
LandOfFree
Numerically controlled grinding machine for plate glass does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Numerically controlled grinding machine for plate glass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerically controlled grinding machine for plate glass will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1564384