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 the position of a tilt/tilt style plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, wherein the bevel pivot length is a function of a torch height; piercing the workpiece with the plasma arc torch; adjusting a position of the plasma arc torch by at least one linear offset value based on the bevel pivot length; rotating the plasma arc torch about its center of rotation to the desired cutting angle and maintaining a torch center point; and translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece.
Claims20
A method of controlling the position of a tilt/tilt style 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;
- adjusting a position of the plasma arc torch by at least one linear offset value based on the bevel pivot length;
- rotating the plasma arc torch about its center of rotation to the desired cutting angle and maintaining a torch center point;
- and
- translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece.
A method of controlling the position of a tilt/rotate style plasma arc torch relative to a workpiece for a bevel cutting operation comprising:
- piercing the workpiece with the plasma arc torch;
- rotating the plasma arc torch about its center of rotation to a desired cutting angle to maintain a torch center point;
- and
- translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece.
A method of controlling the position of a plasma arc torch relative to a workpiece for a bevel cutting operation comprising translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece after the plasma arc torch has been rotated to a desired cutting angle for the bevel cutting operation, followed by adjusting the plasma arc torch vertically (in the Z-axis) based on changes in contour of the workpiece.
Dependencies are inferred from the claim text.