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.
Claims13
In a machine tool having a cutting element and a workpiece table that is moveable by a motorized feed drive in a direction of feed, past the cutting element, and by an operator applying a manual force to the workpiece table, the improvement comprising:
- a control mechanism to vary a drive force of the motorized feed drive, the control mechanism including
- a manual force sensor to sense the manual force applied by the operator, the manual force sensor mounted to the workpiece table for movement therewith, and
- a control signal generator operably connected to the manual force sensor and to the motorized feed drive for generating a control signal for the motorized feed drive in response to the sensed manual force, thereby controlling the drive force applied by the motorized feed drive, supplemental to the manual force, to the workpiece table.
In a machine tool having a cutting element and a workpiece table that is moveable by a motorized feed drive for feeding a workpiece to the cutting element, the improvement comprising:
- a control mechanism to vary a speed of the motorized feed drive, the control mechanism including
- a manual force sensor mounted to the workpiece feed table for movement therewith,
- a control signal generator operably connected to the manual force sensor and to the motorized feed drive, and
- at least one device for the determination of an actual cutting force of the cutting element, the at least one device being operably connected to the control signal generator,
- wherein the control signal generator generates a control signal that is sent to the motorized feed drive to vary the speed of the motorized feed drive, the control signal that is generated being based on input from the manual force sensor and the at least one device.
Dependencies are inferred from the claim text.