Process and device for the control of a motorized feed drive
AssigneeWilhelm Altendorf GmbH & Co. KG
InventorsSiegfried Thiele, Reiner Moeres
Life of this patent
Estimating the term…
Abstract
The invention consists of a process for the control of the motorized feed drive for the movable workplace table of a machine tool, in particular the rolling carriage of a circular saw. The manual force that is applied by the operator in direction of the feed is sensed and converted to a corresponding measured value. From this a set value for the feed rate of the rolling carriage is created and from that is derived a control signal for the drive.
Claims11
A process for controlling a motorized feed drive for a moveable workpiece table of a machine tool having a cutting element, the workpiece table being moved past the cutting element in a direction of feed by an operator of the machine tool applying a manual force to the workpiece table, comprising:
- sensing the manual force exerted by the operator of the machine tool on the workpiece table in the direction of feed;
- converting the sensed manual force to a corresponding electric value;
- deriving a set value for a feed rate of the workpiece table from the electric value;
- deriving a control signal for the motorized feed drive from the set value;
- and
- inputting the control signal to the feed drive to control a drive force, supplemental to the manual force, applied by the feed drive to the workpiece table.
A method for controlling a motorized feed drive for a moveable workpiece table of a machine tool, the machine tool including a cutting element, the workpiece table being moved past the cutting element in a direction of feed by an operator of the machine tool applying a manual force to the workpiece table, the method comprising:
- sensing the manual force exerted by the operator on the workpiece table in the direction of feed;
- converting the sensed manual force to a corresponding electric value;
- sensing a cutting force of the cutting element while sensing the manual force;
- deriving a set value for a feed rate of the workpiece table from the electric value and from the sensed cutting force together;
- deriving a control signal for the motorized feed drive from the set value;
- inputting the control signal to the feed drive to control a drive force, supplemental to the manual force, applied by the feed drive to the workpiece table;
- and
- cutting a workpiece with the cutting element, the workpiece being mounted on the workpiece table.
Dependencies are inferred from the claim text.