Verfahren zum Herstellen einer Kugelgelenkverbindung zwischen einem Gleitschuh und einem Kolben und eine solche Kugelgelenkverbindung

摘要

The invention relates to a method for producing a ball-and socket joint (1) between a slipper (3) and a piston (2) of a piston engine, comprising the following steps: configuring the slipper (3) with a joint ball (4) at the end opposite the bottom surface (21); configuring the piston (2) with an overmeasure (x) on its lateral surface (2c) and a hemispherical joint recess (5) with a recess edge (7) that protrudes beyond the equator (6) of the joint recess (5), for the joint ball (4) at a front end of the piston (2); bringing together the joint recess (5) and the joint ball (4); beading the recess edge (7) into a form in which it grips the joint ball (4) from behind; and finishing the lateral surface (2c) of the piston (2). The following steps are also provided for the purpose of simplifying and improving the production process: bringing together the joint recess (5) and the joint ball (4) after finishing the lateral surface (2c) of the piston (2); locally heating the recess edge (7) to a temperature that reduces its hardness; and beading the recess edge (7).