| Requirement: |
Semi-automatic workstation for the assembly of components (consisting of 3 different parts: Housing, Drive and Lock-Washer) to accurate torque and depth; 8 Assemblies per part fixture in 22 seconds This machine was made on behalf of a 2nd Tier automotive sub-supplier.
View of the DEPRAG Compact Screwdriving Robot with stationary Screwfeeder
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| Our Solution: | One DEPRAG 1-S Compact-Screwdriving-Robot in gantry-style design, which is equipped as follows:
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| Cycle Description: |
An Operator manually loads the part-fixture, which is located outside the machine, with the three pre-assembled parts (consisting of: Housing, Drive and LOCK-Washer). The Operator confirms that the part fixtures are loaded by activating the 2-Hand OPTO-Touch Buttons. The rotary-index table automatically turns by 180°, to move the part-fixture into the assembly position that is located within the machine. Once the part-presence sensor confirms that the part is present, a special gripper automatically removes and stores the LOCK-washers that are located on top of the products. This allows the screw-locations to be freely accessible during the Screwdriving process. Thereafter, the Screwdriving process starts automatically. An assortment of sensors and inquiries controls the accurate assembly both to torque and depth. If an assembly error occurs, the screwdriver automatically moves to a screw-dump area to unload the mouthpiece and nosepiece. This feature is necessary to avoid a screw-jam within the mouthpiece (tooling) prior to the next Screwdriving cycle. After all required fasteners have been assembled; the gripper places the LOCK-washer back onto the drive that is now tightened to the housing. Once the Operator has new parts loaded and reactivates the 2-Hand OPTO Touch Buttons, the rotary index table automatically indexes by 180°. The completely finished parts are moved to the machine's exterior where they can be unloaded and moved to the next Station for subsequent processing. |
| << April 2008 |