Abrasive wheels with workpiece vision feature

Details Abrasive wheels with workpiece vision feature Abrasive wheels with workpiece vision feature

B - Operations, Transporting

24

D

B24D 7/12 (2006.01) B24D 7/10 (2006.01) B24D 11/00 (2006.01)

Patent

CA 2430773

Abrasive grinding wheels having an irregular (i.e., gapped) perimeter shape and/or holes extending therethrough permit one to view the surface of a workpiece being ground in conventional surface finishing, snagging and/or weld blending operations. The grinding wheels may each include one or more gaps disposed in spaced relation about the otherwise circular perimeter of the wheel. Holes also may be provided in addition to, or in lieu of, the gaps, and similarly spaced equidistantly about the wheel. The gaps and/or holes may be configured in many diverse shapes. Gap and hole positions may be selected so as to retain the balance of the wheel. Advantageously, when the wheels are rotated about their axes, one is able to monitor the condition of the surface of the workpiece as it is being abraded, without removing the grinding wheel from the surface.

Selon l'invention, des roues de meulage abrasives ayant une forme irrégulière (p.ex., avec des intervalles) sur leur périmètre et/ou comportant des trous traversants permettent de voir la surface de la pièce usinée, soumise au meulage pendant les opérations courantes de finition de surface, d'ébarbage et/ou d'égalisation pour soudage. Les roues de meulage peuvent comporter un ou plusieurs intervalles espacés (312) sur le périmètre circulaire de la roue. Des trous (322) peuvent également être pratiqués à côté de ces intervalles ou au lieu de ceux-ci; ces trous sont également équidistants à la surface de la roue. Les intervalles et/ou les trous peuvent avoir des formes différentes. On peut choisir les positions des intervalles et/ou des trous de manière à préserver l'équilibre de la roue (110, 310, 410). Lorsque les roues pivotent autour de leur axe, on peut avantageusement surveiller l'état de la surface de la pièce à usiner à mesure qu'elle est abrasée, et ce sans relever la roue abrasive de la surface.

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