| 摘要 |
PURPOSE:To eliminate the grinding polishing trouble by obtaining a constant treading pressure for a workpiece by axially supporting a rotary pressing plate which internally attaches a pressing pad onto an endless polishing belt. CONSTITUTION:A shaft inserting hole 30 is formed on the front surface of a pad receiving tool 29, and the supporting shaft 33 of a pressing pad 32 is inserted into the shaft inserting hole 30, and fixed by a pressing screw element 31, and a rotary pressing plate 34 is revolved around the supporting shaft 33 through a bearing 37. When an endless polishing belt is slidingly attached onto the front surface of the rotary pressing plate 34, in deflection for the rotary pressing plate 34, the rotary pressing plate 34 is applied with a turning moment by the friction. Therefore, the rotary pressing plate 34 is revolved, and the whole surface of the rotary pressing plate 34 is worn out uniformly, and the generation of a recessed part due to the partial abrasion is prevented, and the treading pressure for a workpiece is made uniform, and the generation of the grinding polishing trouble can be eliminated. |
