Angled cut height control system for a plasma arch torch
AssigneeRetro Systems, LLC
InventorsJeffrey Lawrence Riemann, Paul L. Riemann, Nicholas Lee Riemann
Life of this patent
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Abstract
A method of controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, which is a function of a torch height; piercing the workpiece with the plasma arc torch; rotating the plasma arc torch about its center of rotation to a desired cutting angle; translating the plasma arc torch along at least one of X, Y, and Z axes to maintain a torch center point; and translating the plasma arc torch along at least one of the X, Y and Z axes to achieve a resultant displacement along a longitudinal axis of the plasma arc torch to maintain a desired torch height.
Claims21
A method of controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation comprising:
- calculating a bevel pivot length, which is a function of a torch height;
- piercing the workpiece with the plasma arc torch;
- rotating the plasma arc torch about its center of rotation to a desired cutting angle;
- translating the plasma arc torch along at least one of X, Y, and Z axes to maintain a torch center point;
- and
- translating the plasma arc torch along at least one of the X, Y and Z axes to achieve a resultant displacement along a longitudinal axis of the plasma arc torch to maintain a desired torch height.
A torch position control module for controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation, the torch control module comprising:
- a vertical torch height control (VTHC) module configured to translate the plasma arc torch along a Z direction perpendicular to a workpiece;
- and
- an angular torch height control (ATHC) module configured to control a movement of the plasma arc torch along a longitudinal axis of the plasma arc torch to maintain a desired torch height,
- wherein the ATHC module controls the plasma arc torch to translate along X, Y and Z axes to achieve a resultant displacement of the plasma arc torch along the longitudinal axis.
Dependencies are inferred from the claim text.