Patent ID: 6419443
Filing Date: 2002-07-16
Classification: B24B

Abstract:
A glass product machining apparatus for grinding a surface of a glass product, comprising:a base frame having vertical guide members; a grindstone rotatable around an axis and having an outer peripheral surface; supporting means for supporting the grindstone for vertical movement and rotation around the axis; grindstone driving means for rotating the grindstone around the axis; a moving table located below the grindstone, movable in the cross direction of the grindstone, and fixing the glass product with the surface upward; vertically moving means for moving the grindstone supported by the supporting means, upward and downward with respect to a desired extent of grinding of the glass product, while the glass product, along with the moving table, moves under the grindstone; a feed mechanism for moving the moving table horizontally with respect to the grindstone in the cross direction thereof, while said outer peripheral surface of the grindstone is in contact with the glass product, thereby relatively moving the grindstone along the surface of the glass product; and a counterweight mechanism for urging said grindstone and said supporting means upward, the counterweight mechanism having a balance link including a first end and a second end and supported on an upper portion of the frame by means of a pivot pin which is situated between both said ends, a counterweight balancing with weight of said grindstone and said supporting means, a first pivot mechanism that connects said first end of the balance link to said supporting means, and a second pivot mechanism that connects said second end of the balance link to said counterweight.