Work holding devices

Details Work holding devices Work holding devices

1983-08-23

1986-10-14

Bilinsky, Z. R.

Chucks or sockets

With fluid-pressure actuator

Socket type

279121, B23B 3130

Patent

active

046168389

ABSTRACT:
A work holding device comprises an annular cylinder 14, an annular piston 15 movable with respect to the cylinder within the cylinder in an axial direction by application of fluid pressure, and a jaw drive device 28, 29, 30, 31 projecting from the cylinder 14 for applying radial movement to a work holding jaw 12, 13. The piston and/or the cylinder co-operates with the jaw drive device within the cylinder such that axial movement of the piston with respect to the cylinder causes radial movement of the jaw drive device. Since the translation of axial to radial movement takes place effectively within the cylinder, it is possible to reduce the axial length of the work holding device as compared to known work holding devices in which translational movement occurs outside the cylinder.

REFERENCES:
patent: 2788979 (1957-04-01), Skillin
patent: 3083025 (1963-03-01), Herbkersman
patent: 3521894 (1970-07-01), Haviland et al.
patent: 3954275 (1976-05-01), Pickles

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