Device for connecting first and second tubes for production of chassis of front/rear axle of vehicle, where first tube is joined by one of its ends on second tube, comprises interface component comprising middle part and two side parts

摘要

The connection device comprises an interface component (100), which comprises: a middle part (100B) that comprises a circular opening forming a bearing of a first tube end (20); and two side parts (100A, 100C) that is linearly contacts with an external surface of a second tube (10). A line of a peripheral edge of the opening of the middle part and contact lines (110A, 110C) are semi-circular. The two side parts constitute welding lines of the interface component on the tubes. The interface component is a steel sheet component, and comprises two circular rim holes in its middle part. The connection device comprises an interface component (100), which comprises: a middle part (100B) that comprises a circular opening forming a bearing of a first tube end (20); and two side parts (100A, 100C) that is linearly contacts with an external surface of a second tube (10). A line of a peripheral edge of the opening of the middle part and contact lines (110A, 110C) are semi-circular. The two side parts constitute welding lines of the interface component on the tubes. The interface component is a steel sheet component, and comprises two circular rim holes in its middle part, where the circular rim holes are concentric at the peripheral edge of the circular opening. Each side part of the interface component comprises two semicircular rim holes that are concentric to the semicircular line of contact of the lateral part on the second tube. The two circular rim holes are separated by an annular pressing fold of convex radius to increase the stiffness of the middle part of the interface component. The two semicircular rim holes are separated by a semi-circular pressing of convex radius to increase the stiffness of side parts of the interface component. Reinforcements (R) are provided in an upper part and a lower part of junction regions between the middle part and the side parts of the interface component. Two lateral parts have different width to compensate the inclination of the first tube with respect to the first tube. The first tube is not orthogonal to the second tube but inclined with respect to the latter by an angle of 90[deg] .