Patent ID: 8157613
Filing Date: 2012-04-17
Classification: B24B,B29D,Y10S

Abstract:
1. A grinding assembly in a tire uniformity machine for profile grinding a tire having axial and radial dimensions, the grinding assembly comprising a first section including a grindstone, and a radial positioning assembly that moves said grindstone relative to the tire in a radial direction and includes a linear actuator that causes the radial movement of said grindstone, said grindstone being rotatable and driven by a motor, wherein said grindstone has a grinding surface adapted to contact the tire, said grinding surface defining a pair of rounded shoulders formed at axial extremities thereof; and an axial positioning assembly supporting the first section and actuating the first section relative to the tire in an axial direction, said axial positioning assembly including a linear actuator that causes the axial movement of said first section, wherein said axial positioning assembly and said radial positioning assembly are adapted to move said grindstone along a selected profile while said grindstone contacts the tire to shape the tire according to said profile.