APPARATUS AND METHOD OF LASER WELDING INSIDE BELLOWS JOINTS AND SPACER FOR MANUFACTURING BELLOWS

摘要

The present invention relates to an inner joint between the first bellows diaphragm (14a) and the second bellows diaphragm (14b) in the laser welding apparatus for laser welding. And the apparatus preferably comprises a first clamp (22) having a fastening surface (24) adjacent to the one opening 23 and the opening; The second clamp (26) having a fastening surface 27 and; The order between the holding surface 27 of the fixing surface 24 and the second clamp of said first clamp to secure together the first metal bellows diaphragm (14a) and the second metal bellows diaphragm (14b) of claim first clamp 22 and second clamp 26 to enable the relative motion of the bellows diaphragm (14a, 14b) of the opening (14c) of the inner side are typically aligned with the opening 23 of the first clamp have.; And the apparatus also preferably a laser (38) capable of generating a laser beam; Wherein according as the guide means, including a laser guide means is located in the opening (14c) of at least the first clamp of the opening 23 and the first bellows diaphragm (14a) and the second bellows diaphragm (14b) 1, the bellows diaphragm (14a) and the present invention relates to an apparatus for welding the interior joint between two bellows diaphragm. Wherein the groove (28) formed on the upper central portion of the first clamping the opening 23 and the second clamp 26 of the 22 is formed at a predetermined suitable amount of the first bellows diaphragm (14a) and a second bell It rose diaphragm (14b) to be exposed because the welded portion projecting radially inward can be easily welded by a laser beam. The apparatus also includes a first bellows diaphragm (14a) task 2 the bellows diaphragm (14b), the first clamp 22 and second clamp 26 and the laser guide means to weld the seams between each other relative It comprises a rotary drive means for allowing the movement. The non-metallic spacers 30 can be attached between the bellows diaphragm (14a, 14b).