Systems for circumferentially microtoming a pipe having a longitudinal axis. The systems include a frame, a lathe, a carriage, a cutting tool, and an actuator. The lathe is mounted to the frame and configured to support and rotate the pipe about the longitudinal axis of the pipe. The carriage is operatively supported on the frame proximate the pipe. The cutting tool selectively engages the pipe. The actuator is operatively supported on the frame and configured to move the carriage to different radial positions perpendicular to the longitudinal axis of the pipe. In some examples, the system includes a position sensor, a computer display, and/or a controller.

Adjustable feed mechanisms, machining assemblies including the same, and associated methods. An adjustable feed mechanism includes a plurality of cam segments and a cam lifter configured to pivot each cam segment about a corresponding cam pivot point. An adjustable feed mechanism additionally includes a cam follower and a feed output assembly. The cam follower moves along the cam segments sequentially and is pivotally coupled to the feed output assembly. The cam follower pivots through a cam activation angle when moving along a given cam segment to produce the feed output. A machining assembly includes a mount assembly, a rotary element, and an adjustable feed mechanism. A method of utilizing a machining assembly to machine a work piece includes engaging the work piece with a machining assembly, positioning the tool head with respect to the work surface of the work piece, and machining the work surface.

Adjustable feed mechanisms, machining assemblies including the same, and associated methods. An adjustable feed mechanism includes a plurality of cam segments and a cam lifter configured to pivot each cam segment about a corresponding cam pivot point. An adjustable feed mechanism additionally includes a cam follower and a feed output assembly. The cam follower moves along the cam segments sequentially and is pivotally coupled to the feed output assembly. The cam follower pivots through a cam activation angle when moving along a given cam segment to produce the feed output. A machining assembly includes a mount assembly, a rotary element, and an adjustable feed mechanism. A method of utilizing a machining assembly to machine a work piece includes engaging the work piece with a machining assembly, positioning the tool head with respect to the work surface of the work piece, and machining the work surface.

Milling tool head assemblies, remote control systems, and portable machine tools including the same. A milling tool head assembly comprises a milling tool head carriage, a milling tool head with a milling tool head base pivotally coupled to the milling tool head carriage, and a milling tool carrier operatively coupled to a cutting tool. The milling tool carrier is configured to travel along a primary tool path, and the milling tool carrier is slidingly coupled to the milling tool head base to define a secondary tool path of the milling tool carrier. In some examples, a portable machine tool comprises a machine frame, a rotating ring, a bridge, a facing tool head assembly, and a milling tool head assembly. In some examples, a remote control system for a portable machine tool comprises an operator pendant, a control tether, a pneumatic conditioning unit, and an auxiliary conditioning unit.

A method for the in-situ reconditioning of a heavy workpiece mounted on the floor. The method comprises assembling a jig mounted on the floor so as to be arranged around the workpiece to be reconditioned, that is also mounted on the floor, the jig supporting a gantry at the two ends of same, on which there is mounted a precision robotic arm carrying at least one machining apparatus. The method also comprises the alignment of the workpiece and the jig using a precision laser alignment tool in order to allow the jig, the gantry and the robotic arm to form a precision machining apparatus. The method also comprises the reconditioning of the workpiece using the precision machining apparatus.

A method for the in-situ reconditioning of a heavy workpiece mounted on the floor. The method comprises assembling a jig mounted on the floor so as to be arranged around the workpiece to be reconditioned, that is also mounted on the floor, the jig supporting a gantry at the two ends of same, on which there is mounted a precision robotic arm carrying at least one machining apparatus. The method also comprises the alignment of the workpiece and the jig using a precision laser alignment tool in order to allow the jig, the gantry and the robotic arm to form a precision machining apparatus. The method also comprises the reconditioning of the workpiece using the precision machining apparatus.

A method of cutting a pipe includes positioning a positioning apparatus on the pipe, moving the positioning apparatus relative to the pipe to center the positioning apparatus on the pipe, attaching a pipe machining apparatus to the positioning apparatus, and moving the pipe machining apparatus relative to the positioning apparatus and relative to the pipe.

A technique facilitates performance of a machining operation on a component, e.g. a flange. An embodiment of the technique may employ an externally mounted flange facing machine having an external housing with a hollow interior therethrough. The externally mounted flange facing machine may further comprise a plurality of clamping feet mounted to the external housing and oriented for external engagement with the flange. A surface facing arm assembly may be movably mounted to the external housing for rotation in the hollow interior. Additionally, a tool carrier assembly may be movably mounted to the surface facing arm assembly. A feed assembly may be coupled with the tool carrier assembly to drive the tool carrier assembly linearly along the surface facing arm assembly as the surface facing arm assembly rotates in the hollow interior.

Lathe guard systems, remote lathe control systems, and portable lathe assembly kits including the same. A lathe guard system includes a ramp guard and/or a ring guard, each configured to be operatively coupled to a portable lathe to prevent formation of a pinch point between a tripper pin tower and a tool slide assembly of the portable lathe. The ramp guard includes a ramped surface, and the ring guard at least partially overlaps the tool slide assembly to prevent the formation of a pinch point between the tripper pin tower and the tool slide assembly. Remote lathe control systems include an operator pendant configured to enable remote operation of a portable lathe and a control tether extending from the operator pendant. In some examples, a portable lathe assembly kit includes a portable lathe in combination with a lathe guard system and/or a remote lathe control system.

Lathe guard systems, remote lathe control systems, and portable lathe assembly kits including the same. A lathe guard system includes a ramp guard and/or a ring guard, each configured to be operatively coupled to a portable lathe to prevent formation of a pinch point between a tripper pin tower and a tool slide assembly of the portable lathe. The ramp guard includes a ramped surface, and the ring guard at least partially overlaps the tool slide assembly to prevent the formation of a pinch point between the tripper pin tower and the tool slide assembly. Remote lathe control systems include an operator pendant configured to enable remote operation of a portable lathe and a control tether extending from the operator pendant. In some examples, a portable lathe assembly kit includes a portable lathe in combination with a lathe guard system and/or a remote lathe control system.