Siemens Aktiengesellschaft

Guenter Reimann

Gerhard Jonke

Rudolf Kornek

A vacuum pipette has a filter grid that is shifted into its extended interior and whose cross section is considerably greater than the cross section of an end-side suction opening. The gaps formed in the filter grid can be so narrow that even very small components are reliably retained. Nevertheless, the entire passage cross section available is considerably greater than in the case of a filter grid arranged at the end side. As a result, favorable suction forces are generated under constant suction conditions.

Vacuum pipette for gripping electrical components by suction

The invention provides a gripper that is plugged onto a rotatable shaft with a flat locating groove in which the caps of locating spheres engage, these locating spheres being peripherally distributed in an annular groove of the shaft. As a result, the gripper is held precisely on the shaft and can be replaced without causing significant wear.

Device for holding a gripper for an electrical component on a fitting head

An optical check for electrical components on an equipping head is provided by moving the suction pipette of the equipping head with the component affixed thereto passed a line sensor that is parallel to the axial direction of the suction pipette. The free end of the suction pipette and the component proceed into the sensor region. The sensor values for the empty suction pipette are compared in an evaluation unit to sensor values of the suction pipette equipped with the component. The presence of the component and/or the height of the component and/or the length of the component are determined by the comparison.

Growing community of inventors

Munich, Germany

Guenter Reimann