Patent ID: 7001248

Claim:
In a grinding machine comprising an upright wall extended upwardly from a base, and an assembly provided at one side of the wall, the assembly including a hoisting member, a carrier engaged with the hoisting member, the carrier including a V-shaped groove across a top surface thereof and including a pad at outer sides of said carrier, and a spindle unit including an inverted L-shaped mounting plate having a horizontal portion and a vertical portion, a grinding wheel attached to a lower surface of said vertical portion, and segments of grindstone fixed to a lower surface of the grinding wheel, a fine tilting adjustment mechanism mountable on the grinding machine comprising: first and second fastening units provided at both sides of the horizontal portion of the mounting plate respectively, each of the first and second fastening units including two first screws secured through the groove to secure the horizontal portion of the mounting plate to the carrier, each of said units including an intermediate adjustment screw adjustably driven through the horizontal portion of the mounting plate to contact the groove; and third and fourth fastening units provided at lower portions of both outer sides of the vertical portion of the mounting plate respectively, each of the third and fourth fastening units including two first screws secured through the pad to secure the vertical portion of the mounting plate to the carrier, each of said units including an intermediate adjustment screw adjustably driven through the vertical portion of the mounting plate to contact each pad, respectively.