METHOD FOR CLINCHING CONNECTION OF PROFILES AND PROFILE PRODUCED BY THIS METHOD Russian patent published in 2021 - IPC E04B1/58 

FIELD: building.

SUBSTANCE: invention relates to the technology of bulging in connection of profiles. A method for clinching connection wherein the connection is formed by overlapping paired U-shaped profiles interconnected by the bases forming a symmetrical cross-section and contacting each other by bulges. Guides attached to the support table on a single axis together with a stationary bulging machine are used to hold and align the profiles with each other. The guides are equipped with pneumatic cylinders and at least one positioning mark is made on the matrix of the bulging machine. Prior to bulging and fastening the profiles in the guides, marking holes corresponding in shape and size to the positioning mark are made in the profiles; the profiles are aligned with each other with the marking holes and profile ends coinciding. After the profiles are positioned they are fixed in the guides by pneumatic cylinders, then the profiles are bulged simultaneously at several points using the bulging machine and the process described above is repeated.

EFFECT: increased load capacity of a clinching connection.

5 cl, 9 dwg