초록 ▼

A gas bearing air slide assembly includes a slide ram movable within a relatively stationary housing. The slide ram and housing have a plurality of mated planar slide surfaces. Pressurized air is supplied between the mated slide surfaces of the slide ram and housing to create a hydrostatic bearing s

A gas bearing air slide assembly includes a slide ram movable within a relatively stationary housing. The slide ram and housing have a plurality of mated planar slide surfaces. Pressurized air is supplied between the mated slide surfaces of the slide ram and housing to create a hydrostatic bearing separating said mated surfaces and supporting the slide ram for longitudinal movement with respect to the housing. A counterbalance is provided on the slide ram for movement in direction opposite that of slide ram movement to compensate for slide ram axial displacement as it is extended from the housing. The housing is formed from a pair of identical housing halves joined along a joinder plane which passes through a central longitudinal axis of the slide ram. The slide surfaces of the ram and housing are mated by equalized lapping to a point of zero tolerance. Spacer shims are positioned along the joinder plane between the housing halves when assembled to provide sufficient tolerance between the mated slide surfaces to permit movement of the slide ram with respect to the housing.

대표청구항 ▼

A gas bearing slide assembly for controlled linear motion, the gas bearing slide assembly comprising: housing means having a throughbore extending therethrough along a first longitudinal axis, said throughbore being partially defined by a plurality of opposed planar and longitudinally extending hous

A gas bearing slide assembly for controlled linear motion, the gas bearing slide assembly comprising: housing means having a throughbore extending therethrough along a first longitudinal axis, said throughbore being partially defined by a plurality of opposed planar and longitudinally extending housing slide surfaces in the housing means; an elongated slide ram adapted to be slidably received in the throughbore of the housing means, the slide ram having its exterior partially defined by a plurality of planar ram slide surfaces which are adapted to slidably mate with the housing slide surfaces and permit longitudinal movement of the slide ram relative to the housing means along the first longitudinal axis; means for supplying pressurized gas between the slide surfaces of the housing means and slide ram and creating a hydrostatic bearing to separate said slidably mating surfaces under fluid pressure and support the slide ram for movement with respect to the housing means; means for moving the slide ram longitudinally with respect to the housing means; counterbalance means longitudinally movably mounted on the slide ram for limiting lateral movement of the slide ram relative to the first longitudinal axis; and means for moving the counterbalance means responsive to movement of the slide ram in direction opposite to the direction of longitudinal movement of the slide ram.