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US 4,712,048 AGranted
Process and apparatus for controlling the spindle speed of a gear cutting machine
AssigneeReishauer AG
InventorRoland Rebsamen
Life of this patent
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AssigneeReishauer AG
InventorRoland Rebsamen
Estimating the term…
A tool spindle is driven by a motor and is connected to an angle of rotation transmitter. The signal of the transmitter connected to the tool spindle represents the desired value for the drive of a work piece spindle. The angle of rotation of the workpiece spindle is measured with another transmitter. A control deviation signal which is fed into a servo amplifier of the workpiece spindle drive via a controller is formed from both transmitter signals. A variable observer circuit into which the control deviation signal is also fed is arranged in parallel to the controller. The control deviation signal is stored sequentially in several sample and hold circuits by means of a multiplexer circuit during one tool revolution. The content of each sample and hold circuit is integrated by means of a respective integrator. During the following cycle, a correction signal, which is added to the output signal of the controller, is formed by sequential interrogation of the integrators by means of a demultiplexer circuit. The multiplexer and demultiplexer circuits are controlled by a synchronizing circuit which is synchronized by an index signal.
An apparatus for controlling the rate of rotation of a spindle of a gear generating machine comprising a first spindle having a first angle of rotation transmitter connected thereto and a second spindle having a second angle of rotation transmitter connected thereto, controller means providing an output signal controlling a drive of the first spindle and storage circuit means including means for generating and storing a variable signal in discrete time intervals within a cycle (T) and adding circuit means for adding the storage content to the output signal of said controller means synchronously with an independent signal, wherein said storage circuit means comprises several storages and a multiplexer circuit which is controlled by said independent signal and is connected in series to said storages.
A process for controlling the rate of rotation of a spindle of a gear generating machine operating in a continuous gear generating process, in which a first spindle has a drive controlled by a control output of an electronic controller, in which said controller insures synchronization with a second spindle, the process comprising the steps of:
A process for controlling the rate of rotation of a spindle of a gear generating machine operating in a continuous gear generating process, in which a first spindle has a drive controlled by a control output of an electronic controller, in which said controller insures synchronization with a second spindle, the process comprising the steps of:
Dependencies are inferred from the claim text.