Press-riveting connection structure for stamped part

Abstract

The invention provides a press-riveting connection structure for a stamped part. The press-riveting connection structure enables close fitting of an outer ring surface of a rivet head and the inner surface of an inner hole of the stamped part to guarantee avoiding of gaps, completeness and attractiveness of a baked varnish surface can be achieved, and outer surface quality of products is guaranteed. The press-riveting connection structure comprises the rivet head and the stamped part with the inner hole, and the rivet head comprises a connection hole with the center internally through and the outer ring surface with the outer end used for press-riveting of the stamped part. The press-riveting connection structure is characterized in that the outer ring surface of the rivet head comprises an outwardly-protruding end positioning ring surface and an equal-diameter positioning column ring surface, and a partition surface between the outwardly-protruding end positioning ring surface and the equal-diameter positioning column ring surface is a horizontal partition surface. The inner hole of the stamped part comprises a large-diameter end and a small-diameter end, a transition surface between the large-diameter end and the small-diameter end is a horizontal end face, the inner diameter of the large-diameter end is equal to the diameter of the outwardly-protruding end positioning ring surface of the rivet head, and the height of the large-diameter end is equal to that of the outwardly-protruding end positioning ring surface of the rivet head.

Description

Technical field [0001] The invention relates to the technical field of the connection of stamping parts, in particular to a pressure riveting connection structure for stamping parts. Background technique [0002] After the existing stamping parts are stamped and formed, they generally need to be riveted to the rivet head in the formed inner hole, and then the rivet head is connected to the rivet part of the corresponding component, so that the stamping part and other components are integrated into A whole structure and complete assembly. The formed inner hole of the existing stamping parts is generally a closed structure with both ends to the middle (see figure 1 ), the outer ring surface of the rivet head is also specifically the structure of the middle part of the upper and lower ends flared (see figure 2 ), the rivet head and the inner hole of the stamping part are pressed and riveted through the equipment (see image 3 ), after the forming is completed, there is a gap I in th...

AI Technical Summary

Problems solved by technology

[0002] After the existing stamping parts are stamped and formed, they generally need to be riveted with the rivet head in the formed inner hole, and then the rivet head is connected to the rivet part of the corresponding component, so that the stamped part and other components are integrated into a An overall structure and complete assembly, the forming inner hole of the existing stamping parts is generally a closing structure at both ends to the middle (see figure 1 ), the outer ring surface of the rivet head is also specifically a structure in which the middle part flares upwards and downwards at both ends (see figure 2 ), the rivet head and the inner hole of the stamping part are riveted through the equipment (see image 3 ), after the molding is completed, there is a gap I between the middle of the outer ring surface of the rivet head and the middle of the inner hole of the stamping part, and air is left inside. The outer surface of the outer surface is heated and broken, which affects the outer surface quality of the entire product

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