A pneumatic riveting machine for automobile frame machining

Abstract

This utility model relates to the field of pneumatic riveting machine technology and discloses a pneumatic riveting machine for automobile frame processing. It achieves rapid switching of the riveting head by setting up a head-changing mechanism, a head A, a quick-change structure, and a head B. When the cylinder is activated, its output shaft drives the pressure plate to move downwards, causing the bottom surface of head B to contact the surface of the fixed plate, allowing head B to hang on the fixed plate surface. At this time, the needle cylinder is activated, and its output shaft retracts. After the needle cylinder no longer applies pressure to the inner cylinder, the spring force is released, causing the inner cylinder to move upwards. When the inner cylinder moves upwards and the position of the arc groove B overlaps with the positions of the circular groove and arc groove A, the steel ball, no longer squeezed by the outer wall of the inner cylinder, enters the arc groove B inside the inner cylinder. Since head B is no longer restricted by the steel ball, the cylinder drives the pressure plate to rise, allowing head B to sit on the surface of the fixed plate for disassembly from inside the quick-change mechanism, achieving the effect of rapid disassembly and switching of the riveting head.

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