A clamping device including a control cam and a control cam for controlling the position of clamping arms which are pivotable relative to one another, each with a holding portion in a clamping device, including a shaft portion for pivotable mounting of the control cam about a control cam pivot axis in a hub portion of a carrier plate of the clamping device, and at least one coupling element for coupling the control cam to a clamping arm of the clamping device, wherein the control cam is pivotable about the control cam pivot axis between a predefined open position and a predefined closed position, and the at least one coupling element is configured in the form of a slotted groove for receiving a control bolt arranged on a clamping arm, or in the form of a control bolt for penetration into a slotted groove arranged on a control arm.