Grinding device for rounding off edges of an opening in a work piece
AssigneeGrobi AS
InventorArne Sandvold
Life of this patent
Estimating the term…
Abstract
An apparatus for rounding off edges of openings in a work piece, such as internal openings or cut outs in steel plates. The apparatus includes a belt grinding machine having a continuous grinding belt running over several belt guiding rollers which are provided on a support frame. Two of the rollers are provided on a cradle, that is pivotally supported in the support frame. The grinding belt is, between the rollers on the cradle, disposed for rectilinear working of the work piece, and a device is arranged for operating the cradle in a pendulum like movement about the pivotal support during a grinding operation.
Claims20
An apparatus for rounding off edges of openings or cut-outs in a work piece, comprising a belt grinding machine having a continuous grinding belt running over several belt guiding rollers which are provided on a support frame, wherein two of the rollers are disposed on a cradle, which cradle is pivotally supported in the support frame, the grinding belt between the rollers on the cradle runs substantially rectilinear whereby a grinding point of the belt is defined between the two rollers, and means are provided for operating the cradle about the pivotal support during a grinding operation whereby upper and lower work piece edges are ground in the same grinding operation.
An apparatus for rounding off edges of openings or cut-outs in a work piece, comprising:
- a belt grinding machine having a continuous grinding belt running over several belt guiding rollers which are provided on a support frame, two of the rollers being arranged on a cradle that is pivotally supported in the support frame, the grinding belt between the rollers on the cradle running substantially rectilinear for working off the work piece,
- a mechanism for pivoting the cradle about its pivotal support during a grinding operation, and
- a counter support provided behind the grinding belt and between the belt guiding rollers on the cradle.
An apparatus for rounding off edges of openings or cut-outs in a work piece, comprising a belt grinding machine having a continuous grinding belt running over several belt guiding rollers which are provided on a support frame, wherein two of the rollers are arranged on a cradle that is pivotally supported in the support frame, the grinding belt between the rollers on the cradle running substantially rectilinear for working off the work piece, and a mechanism for pivoting the cradle about its pivotal support during a grinding operation, and wherein the belt grinding machine comprises an upper and lower guiding wheel on the cradle, an upper driving wheel and a lower turning wheel mounted to the support frame.
Dependencies are inferred from the claim text.