Self-centering arbor
AssigneeDana Corporation
InventorsDaniel J. Kable, Donald E. Altevogt, Teddis L. Jackson
Life of this patent
Estimating the term…
Abstract
A self-centering arbor adapted to locate a hole in a mechanical object having coaxial openings, such as brackets, bushings or the like, with vastly improved accuracy and repeatability. The self-centering arbor comprises two opposite free floating, spring biased, coaxial, tapered pins mounted in a housing member for engagement with the openings in the axle bracket or the like. The housing includes opposite first and second housings interconnected by a mandrel shaft. Furthermore, two spherical locating members are secured to the housing member and are oppositely aligned on an axis of the tapered pin.
Claims17
A self-centering arbor for gauging a hole location in a mechanical object having opposite coaxial openings, said arbor comprising:
- a mandrel shaft having a longitudinal axis of symmetry;
- a floating pin having a tapered end adapted for engaging one of the coaxial openings in the object, said pin being coaxial with said mandrel shaft and said axis;
- at least one spring member adapted to urge said pin into a contact with said one opening;
- a housing member housing said pin and said spring member;
- a centering device for centering said mandrel shaft within the other of the coaxial openings, said centering device being removably attached to said shaft;
- a pair of oppositely disposed locating members connected to opposite ends of said shaft and aligned with said axis, said locating members adapted to indicate axial centers of said openings.
A self-centering arbor for gauging a position of a mechanical object having opposite coaxial openings, said arbor comprising:
- a longitudinal axis of symmetry;
- a mandrel shaft coaxial to said axis, said shaft having a first end and a second end;
- a first housing having an axial hole therethrough coaxial to said axis, said first housing having an inner end and an outer end, said first housing provided with a bore at said inner end thereof, said housing having a locating member affixed to said outer end thereof coaxially with said axis;
- a second housing having an axial hole therethrough coaxial with said axis, said second housing having an inner end and an outer end, said second housing provided with a bore at said inner end thereof, said housing having a locating member affixed to said outer end thereof coaxially with said axis;
- a floating pin having a tapered end, said tapered end adapted to engage one of the openings in the mechanical object, said pin provided with an axial hole therethrough receiving said shaft, said floating pin disposed in said first housing with said tapered end facing said inner end of said first housing, said pin being axially movable within said first housing bore along said shaft;
- a spring member disposed within said first housing bore, said spring member adapted to urge said pin into a contact with said one opening;
- said shaft is extending through said holes in said first and second housings;
- said first housing being fixedly secured to said first end of said shaft;
- said second housing being axially adjustably and removably secured to said second end of said shaft, said second housing having a centering device therein for centering said shaft within the other of the coaxial openings, and
- a pair of locating members affixed to said outer ends of said housings opposite to each other and aligned with said axis, said locating members adapted to indicate centers of the openings,
- wherein said inner end of said first housing is facing said inner end of said second housing.
A self-centering arbor for gauging a position of a mechanical object having opposite coaxial openings, said arbor comprising:
- a mandrel shaft having a first end and a second end;
- a first generally cylindrical housing having an axial opening therethrough, said first housing having an inner end and an outer end, said first end of said shaft extends through said opening in said first housing and is fixedly secured to said outer end of said first housing;
- a second housing having an axial opening therethrough, said second housing having an inner end and an outer end, said second end of said shaft extends through said opening in said second housing and is axially adjustably and removably mounted to said outer end of said second housing;
- first and second floating generally cylindrical pins each having a truncated tapered end, said pins provided with axial opening therethrough receiving said shaft;
- said first pin is disposed in a bore formed in said first housing at the inner end thereof with said tapered end of said first pin facing said inner end of said first housing, said first pin being slidingly mounted over said shaft;
- said second pin is disposed in a bore formed in said second housing at the inner end thereof with said tapered end of said second pin facing said inner end of said second housing, said first pin being slidingly mounted over said shaft;
- a pair of spring members each disposed within said bores formed in said first and second housings adapted to urge said corresponding pins toward said inner ends of said housings;
- stop means secured to each of said housings for limiting axial movement of said pins, wherein each of said pins including an elongated axial slot on an outer peripheral surface thereof for engaging said respective stop means.
Dependencies are inferred from the claim text.