Deburring apparatus

An apparatus for deburring the marginal edge of a cylindrical body, the apparatus comprising:

• (a) a cylindrical housing adaptable for rotatable mounting having a substantially planar bottom surface, and an inwardly disposed continuous channel opening in said bottom surface, said channel having spaced concentric, inner and outer sidewalls substantially normal to said bottom surface, said inner and outer sidewalls having a plurality of spaced elongated slots offset from each other;
• (b) a plurality of first spaced apart pins seated in said housing adjacent said slots of said inner sidewall, and a plurality of second spaced apart pins seated in said housing and disposed concentric to and generally outwardly from said first pins and offset therewith so that each of said second pins is disposed adjacent said slots of said outer sidewall and between adjacent said first pins;
• (c) each of said first and second pins having a substantially cylindrical section and a convex terminus, and seated so that at least a portion of said cylindrical section and of said convex terminus of each of said first and second pins protrudes from said slots into said channel;
• and
• (d) means to bias said first and second pins radially toward each other and to be displaceable radially in opposite directions relative to the longitudinal axis of said cylindrical housing.

An apparatus for deburring the marginal edge of a cylindrical body, comprising:

• (a) a substantially enclosed cylindrical housing having (i) a circular hub, (ii) a continuous, open channel circumscribing said hub, and (iii) a circumferential rim disposed radially from said channel;
• (b) said channel having (i) an inner sidewall defining the outer wall of said hub and an outer sidewall defining the inner wall of said rim, and (ii) a laterally disposed annular boss adjoining said inner and outer sidewalls thereby connecting said hub and said rim;
• (c) a plurality of first, spaced elongated slots and second, spaced elongated slots extending transversely through said boss and opening longitudinally in the peripheries of said inner and outer sidewalls whereby said first slots open through a portion of said inner sidewall and said second slots open through a portion of said outer sidewall;
• said first slots offset from said second slots and disposed radially and generally outwardly from said first slots;
• (d) a plurality of first pins seated in said first slots so that a portion of each of said first pins protrudes from the periphery of said inner sidewall and into said channel;
• and a plurality of second pins seated in said second slots so that a portion of each of said second pins protrudes from the periphery of said outer sidewall and into said channel, whereby said second pins are disposed concentric to and generally outwardly from said first pins and offset therewith so that each of said second pins is disposed between adjacent said first pins;
• and
• (e) means to bias said first pins and said second pins radially in opposite directions toward each other and to be displaceable radially in opposite directions.

An apparatus for deburring the marginal edge of a cylindrical body, and including (a) a cylindrical housing adaptable for rotatable mounting having a substantially planar bottom surface with a center hub, and a continuous channel circumscribing said hub and having spaced inner and outer sidewalls extending inwardly from said bottom surface and opening outwardly in said bottom surface, said inner and outer sidewalls having a plurality of spaced elongated slots offset from each other, (b) a plurality of first spaced apart pins seated in said housing adjacent said inner sidewall, and a plurality of second spaced apart pins seated in said housing and disposed concentric to and outwardly from said first pins and offset therewith so that each of said second pins is disposed adjacent said outer sidewall and between adjacent said first pins, (c) each of said first and second pins having a cylindrical section, an inwardly directed annular shoulder, and a convex terminus, and seated so that at least a portion of said cylindrical section and of said convex terminus of each of said first and second pins protrudes from said slots into said channel;

• and (d) means to bias said first pins and said second pins radially in opposite directions toward each other and to be displaceable radially in opposite directions, by the process which comprises the sequential steps, as the housing is being rotated, contacting the cylindrical body with the convex terminus of the first and second pins;
• tehn contacting the cylindrical body with the cylindrical section of the first and second pins so as to displaces the pins radially in opposite directions relative to the center longitudinal axis of the housing;
• and then contacting the cylindrical body so that the marginal edge of the cylindrical abuts the annular shoulder of each pin;
• and then removing the cylindrical body from the apparatus.