Technical cleanliness in the screwdriving process
to reduce particles on working pieces
Technical cleanliness in assembly processes is becoming increasingly more important. There are numerous reasons: Apart from optical reasons, dirt particles impair the hygiene and functionality.
Requirements for technical cleanliness in automated screwdriving and feeding processes move thus into focus. We consider the four main factors that may influence technical cleanliness in screwdriving processes: the fastening element, the work piece, the screwdriving system and the screwdriving environment.
Depending on these factors, as well as customer requirements, we design the screwdriving system individually for our customers.
Components that increase Technical Cleanliness in the screwdriving process
Screwdriving units with vacuum tool
Due to the vacuum in the screwdriving system the particles are extracted off the fastening element and channeled into a filter.
The system works without vibration and sorting air current. Each screw is sorted only once.
The system works without any vibration. By using a hopper and a fill level control the number of fasteners int he bowl can be kept down.
Only the rail of the singling mechanism vibrates in order to bring the fastening elements into the correct sorting position. By using a hopper and a fill level control the number of fasteners can be kept low.
A particle sluice is installed before the nose piece in the feed hose. Adhering particles are extracted and channeled into a filter, The screw is transported further on. The whole process lasts only a split second.
Pick and place systems
Pick and place systems work without any vibration or sorting air current. They have to be placed in close proximity of the screwdriving system.
Feeding from a magazine
Magazines are used in robotic systems or in systems with positioning axles. Fasteners are fed from the feed unit into the magazine. The systems work without transport air current.
Extraction
In the case of contamination caused by the manufacturing process or the material, dirt particles can be extracted from the work piece or the screwdriving environment and channeled into a filter.