Method for Controlling a Wall Saw System When Making a Separating Cut
AssigneeHilti Aktiengesellschaft
InventorsWilfried KANEIDER, Dragan Stevic, Christian Bereuter, Dieter Profunser
Life of this patent
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Abstract
A method for controlling a wall system when creating a separating cut in a workpiece between a first and a second end point is disclosed. The wall saw system includes a wall saw having a saw head, a pivotable saw arm, a saw blade and a blade guard. The separating cut is carried out in a plurality of main cuts. The pivoting movement of the saw arm in a main cutting angle is carried out in at least two steps with at least one intermediate angle, where a free cut of the saw blade is carried out in the respective intermediate angle between the pivoting movements of the saw arm.
Claims15
-14. (canceled)
A method for controlling a wall saw system, wherein the wall saw system comprises a guide track and a wall saw with a saw head, a motorized feed unit that displaces the saw head parallel to a feed direction along the guide track, at least one saw blade that is attached to a saw arm which is pivotable about a pivot axis of a saw head and is driven about a rotation axis, and at least one removable blade guard enclosing the saw blade;
- and comprising the steps of:
- making a separating cut of an end depth (T) in a workpiece having a workpiece thickness (d) between a first end point (E1) and a second end point (E2);
- wherein, prior to starting a processing of the separating cut, controlled by a control unit of the wall saw system, at least a saw blade diameter (D) of at least one saw blade, positions of the first and second end points (E1, E2) in the feed direction, the end depth (T) of the separating cut, and a main cutting sequence of m main cuts, where m≧2, are established;
- wherein the main cutting sequence comprises at least a first main cut having a first main cutting angle (α1) of the saw arm and a first diameter (D1) of the utilized saw blade and a following second main cut having a second main cutting angle (α2) of the saw arm and a second diameter (D2) of the utilized saw blade;
- wherein, during the processing controlled by the control unit:
- the first main cut is performed with the saw arm tilted at a positive or a negative first main cutting angle (±α1);
- and
- the second main cut is performed with the saw arm tilted at a positive or a negative second main cutting angle (±α2);
- wherein a pivot motion of the saw arm from the first main cutting angle (±α1) into a new main cutting angle (±α1, ±α2) is performed in at least two steps with at least one intermediate angle (±β1, ±β2), wherein between pivot motions of the saw arm, there occurs in the at least one intermediate angle (±β1, ±β2) a free-cutting of the saw blade in each case.
Dependencies are inferred from the claim text.