Boring device

B - Operations – Transporting – 23 – B

Patent

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77/36

B23B 29/00 (2006.01) B23B 29/034 (2006.01) B23B 41/00 (2006.01)

Patent

CA 1129684

Abstract The present invention relates to a boring device for boring internal surfaces of hollow workpieces of the kind which com- prises radially adjustable insert-provided holders, there be- ing provided pressure means, such as steering pins so as to effect radial adjustment of the insert holder from an outer active working position to an inactive position. The radial ad- justment occurs by having each insert holder via said steering pins supported against a bushing of non-circular cross section aotuatable by a shaft member centered within the bushing, said bushing upon its rotation effecting said radial adjustment.

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