Boring and surfacing machine
AssigneeSilk Engineering (Derby) Limited
InventorGeorge Silk
Life of this patent
Estimating the term…
Abstract
A boring and surfacing machine (12) has a rotatable carriage (15) on which a tool carriage (16) is axially moveable. The tool carriage (16) supports a tool post (18). The tool carriage (16) and the tool post (18) can be driven axially and radially respectively, by means of lead screws (46) and (58). The rotatable carriage (15) can comprise two or more rails (36) enabling the dimensions of a work piece to be measured while the machine is in position and also to provide a relatively high moment of inertia.
Claims22
A machine tool comprising a rotatable carriage rotatably located on mounting means, the mounting means enabling the machine tool to be positioned and secured relative to a work piece, the rotatable carriage supporting a tool carriage mounted for axial movement on the rotatable carriage relative to the axis of rotation of the rotatable carriage and a tool post mounted on the tool carriage for radial movement relative to the tool carriage, drive means for rotatably driving the rotatable carriage and for driving the tool carriage axially relative to the rotatable carriage, and for driving the tool post radially relative to the tool carriage, wherein the drive means for driving the tool post comprises a power source located remotely from the tool post and a tool post drive transmission coupling the power source to the tool post and including a drive lead screw coupled to the power source and engaging a worm gear having an internal thread engaging a tool post lead screw attached to the tool post.
A machine tool comprising a rotatable carriage rotatably located on mounting means, the mounting means enabling the machine tool to be positioned and secured relative to a work piece, the rotatable carriage supporting a tool carriage mounted for axial movement on the rotatable carriage relative to the axis of rotation of the rotatable carriage and a tool post mounted on the tool carriage for radial movement relative to the tool carriage, drive means for rotatably driving the rotatable carriage and for driving the tool carriage axially relative to the rotatable carriage, and for driving the tool post radially relative to the tool carriage, wherein the drive means for driving the tool post and for driving the tool carriage comprises a power source located remotely from the tool post and the tool carriage, and a drive transmission for coupling the power source to the tool post and to the tool carriage, said drive transmission including a variable rate drive having a worm wheel driven by the power source and a cam driven by the rotation of the worm wheel, a follower urged into contact with the cam, the follower operating an intermittent output drive selectively coupled to one of the tool carriage and the tool post.
Dependencies are inferred from the claim text.