Machine tool with adjustable strut assembly

Details Machine tool with adjustable strut assembly Machine tool with adjustable strut assembly

1998-07-01

1999-05-25

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Including means to infeed rotary cutter toward work

408236, 409216, 409235, B23C 106

Patent

active

059064617

ABSTRACT:
A machine tool includes several telescopic struts, each of which being formed by an inner tube and outer tube arranged within one another. The telescopic struts are articulated at their one end to a frame and at their other end to a tool holder. The outer tube is formed with a plurality of circumferentially spaced recesses, with each of the recesses accommodating a recirculating ball bearing unit which includes a carrier body provided with endless ball tracks. Each endless ball track is divided in a load-bearing section and an unstressed, non-load-bearing return portion. The inner tube has ball tracks, with balls rolling along the ball tracks of the carrier body and the inner tube whereby the balls are guided from the load-bearing section into the return section.

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Rosheim Mark E.: Robot Wrist Actuators, John Wiley & Sons.

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