Insulating part for insulatingly holding an electrically conductive nozzle and laser processing head with a sensor assembly for identifying such an insulating part
A technology of laser processing head and insulating parts, which is applied in the direction of converting sensor output, laser welding equipment, metal processing equipment, etc., can solve the problems of complex machinery, high cost of wearing parts, etc., achieve low cost, and eliminate the danger of damaging the laser processing head. Effect
Active Publication Date: 2022-01-14
PRECITEC GMBH
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Problems solved by technology
However, this solution is mechanically very complex and thus entails an expenditure that is prohibitively expensive for wearing parts
Method used
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Embodiment Construction
[0027] Such as figure 1 As shown in , the laser machining head has a housing 10 through which a working laser beam path 11 is guided, in which a lens arrangement 12 is arranged for focusing a working laser beam 14 onto a workpiece 15 . Attached to the processing-side end of the housing 10 is a nozzle body 16 on which is arranged an electrically conductive nozzle 17 which is electrically insulated from the nozzle body 16 by an insulating element 18 . The insulating part 18 is fastened to the nozzle body 16 , for example by means of a union nut 19 . Such as figure 2 It can be seen particularly clearly in the figure that the insulating part 18, 18' has a central through-opening 20, which is provided on its processing-side end with an internal thread 20', into which the conductive nozzle 17 is screwed by means of a corresponding counter-thread 21. in the internal thread.
[0028] As indicated schematically by the dashed line 23 , the electrically conductive nozzle 17 , for exa...
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The invention relates to an insulating part for insulatingly holding an electrically conductive nozzle and a laser processing head with a housing (10) through which a working laser beam path (11) is guided, said working laser beam path being at The processing side exits through a conductive nozzle (17) held on an insulating part (18, 18') held on the housing (10) and connected to a distance measuring circuit The oscillating circuit ( 24 ) of ( 22 ) is connected conductively for capacitive distance measurement. In order to be able to monitor the presence of an inexpensive insulating part (18) in a user-friendly manner, it is provided according to the invention that the insulating part (18) comprises a ferromagnetic body (26), on which a sensor (27) is arranged ) for identifying the ferromagnet (26), the sensor is connected to a monitoring switch circuit (29) that issues a warning signal in the absence of an insulating part (18).
Description
technical field [0001] The invention relates to an insulating part for insulatingly holding an electrically conductive nozzle, in particular a cutting nozzle tip, on a laser processing head and a laser processing head provided with this insulating part, in particular a laser with integrated capacitive distance adjustment processing head. Background technique [0002] In order to be able to achieve an optimized processing quality and very high processing speed during laser processing, it is required to keep the distance between the workpiece and the laser processing head constant, especially the distance between the cutting nozzle and the workpiece, because very small deviations will Make the processing quality deteriorate. Especially in laser cutting, deviations from the desired distance can lead to the formation of burrs or adversely affect the cutting speed, the roughness of the cut surface and the gap width. Laser processing heads, in particular laser cutting heads, are...
Claims
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IPC IPC(8): B23K26/04B23K26/14B23K26/03
CPCB23K26/1462B23K26/0342B23K26/048B23K26/702B23K26/38G01D5/2417
Inventor G·施珀尔
Owner PRECITEC GMBH