Riveting size control method and riveting size control device

The invention discloses a riveting size control method and a riveting size control device. The riveting size control method comprises the following steps: establishing a required riveting force model based on a yield criterion when a rivet is riveted; establishing a driving force model between the control parameters and the output force of the riveting equipment; and the driving force model and the riveting force model are coupled, and the control parameters of the riveting equipment and a riveting model of the size of the riveting head after riveting of the rivet are obtained. By controlling the control parameters of the riveting equipment, the size of the formed rivet pier head can be accurately controlled. 本发明公开了一种铆接尺寸控制方法及铆接尺寸控制装置，包括以下步骤：建立铆钉铆接时基于屈服准则的所需铆接力模型；建立铆接设备的控制参数与输出力之间的驱动力模型；将驱动力模型与铆接力模型进行耦合，得到铆接设备的控制参数与铆钉铆接后铆接头尺寸的铆接模型。本发明通过控制铆接设备的控制参数能精准控制成型后的铆钉墩头的尺寸。