Orbital tool assembly for forming rivet heads

Details Orbital tool assembly for forming rivet heads Orbital tool assembly for forming rivet heads

B - Operations, Transporting

21

J

10/5

B21J 15/00 (2006.01)

Patent

CA 1197655

ABSTRACT OF THE DISCLOSURE An orbital tool assembly for forming rivet heads has a housing attached to a driven member rotatable upon a first axis, the housing having bore along a second axis at an acute angle to the first. A head having an axis coincident with the second axis and including a fluid pressure chamber is retained within the housing with bearings interposed. A coaxial driver on the head has a plurality of bores parallel to the second axis in communication with the pressure chamber, and mounts a reciprocal peening tool holder in each bore, supporting an axial peening tool. An anti-rotation arm at one end extends at right angles to the driver and is secured thereto with its other end engaging a bracket, the arm being free for rocking movements in a plane passing through thefirst and second axes. Rotation of the head oscillates the peening tools in the rocking plane, the peening tools being in operative engagment with unheaded rivets.

428769

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