The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 1996
Filed:
Mar. 07, 1995
Hitoshi Enokizono, Yamanashi, JP;
Nobuaki Iehisa, Mishima, JP;
Fanuc, Ltd., Minamitsuru-gun, JP;
Abstract
An output waveform control device generates a pulse wave by processing waveform data from a CNC (Computer Numerical Control) unit and delivers the pulse wave for pulsed oscillation of a laser beam. The waveform data transferred from the CNC (Computer Numerical Control) unit is input to a duration-allocating device provided within a laser oscillator. The duration-allocating device of the laser oscillator allocates a duration .DELTA.T, set to a desired value, to each step of the waveform data W. The durations .DELTA.T are allocated in a shorter-to-longer order, and the resulting waveform data is transferred to a pulse wave-generating device. The pulse wave-generating device generates a pulse wave P1 based on the received waveform data W. The pulse wave P1 thus generated is preferably includes 20 pulse segments, each of which has a duration .DELTA.T allocated thereto which can vary from one segment to another. Accordingly, each pulse segment of the pulse wave P1 has a duration set as desired, and the pulse wave duration .SIGMA..DELTA.T as a total of the durations .DELTA.T, can be set as desired. This makes it possible to carry out laser beam machining in a suitable manner dependent on the type of machining.