Breather Insertion On An Electronic Control Unit

Transcript

4/16 Breather insertion on an Electronic Control Unit (ECU) AW Europe, specialized in automatic gearboxes, has entrusted WOW Technology with the study and the realization of an automated cell to insert a breather on electronic control units of gearboxes. The objective of this equipment is also to ensure a strict quality control before and after assembly. The Electronic Control Unit (ECU) controls the automatic gearbox and is installed on the automatic gearbox of the vehicle. This ECU is a waterproof box which undergoes frequent and important temperature variations (and hence pressure) throughout its life. It is therefore equipped with a breather in order to limit the pressure inside the box when it is too high. See the online video www.wowtechnology.com/ECU The cell is designed to avoid any risk of pollution of the box by dust particles. For this reason:  The breathers supply system is placed under the working plan. It is accessible via a front drawer.  The breather gripper is placed on two offset axes located on either side of the box (and not just above).  The breather gripping, from the supply system, is performed before the arrival of the box in the insertion station.  Only the vertical insertion movement is performed over the box. 1. Working sequence 4/16 The cell is equipped with an electrical linear axis equipped with a "workpiece-holder" called JIG, on which the operator places the ECU. The operator then starts the automatic process leading to the displacement of the ECU to a vision control gantry (+ bar code reading and suction of any dust). The gantry is equipped with a laser profilometer, which measures the height of the shoulder at different points before the insertion of the breather. This also allows controlling the good insertion of the ECU in the JIG. Before the insertion of the breather, a camera controls the absence of any dust particle of a size greater than 0.10 mm on the box and this at the seat level. The box is then moved under the insertion gantry of the breather. The supply system can manage a stack of 6 breather plates. It consists of a XY table moving the "active" plate underneath the breather gripper. When the breather plate is empty, it is taken by the suction pads mounted on the breather gripper and lifted from the stack of plates. The XY table positions the "empty plate" area under the gripper. The empty plate is then dropped. When the gripper has taken a breather in the plate, it rises above the working plan until the arrival of the box. The linear axis first stops the JIG at a position where the gripper drops the breather in a mechanical refocusing footprint and then takes it over. The axis then positions the box under the gripper which inserts the breather on the seat. The gripper is equipped with a load sensor allowing the effective breather insertion according to the pressure applied. The linear axis brings the box to the loading / unloading position. The laser profilometer controls the insertion height of the breather by going under the vision control gantry (by computing the difference between the measures taken before and after insertion). The operator is informed on the control panel about the status of the results of the various controls made on the ECU. He can then unload it. WOW Technology The implementation of this project confirms the know-how of WOW Technology for autonomous automation and quality control machines. Whatever the mechanical parameters and environmental characteristics, WOW is able to provide tailor-made machines perfectly sized and answering all your technical requirements. This collaboration between AW Europe and WOW Technology is based on nearly 20 years of mutual trust. 2.