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Retrofitting Ensures Shortest Cycle Times



Modular production lines by HUMARD Automation SA are fast, flexible and can be used for a wide variety of products or product variants. KNUTH Machine Tools adapted its Numturn 320 box-way lathe to fulfill the special requirements of the Swiss manufacturer for the manufacture of an automated pump production line.

HUMARD Automation SA, with its headquarters in Delémont, Switzerland, designs and builds flexible turn-key production lines. The small, compact modules come in various dimensions. They can be combined with each other as well as interposed between process units, such as presses, cutters and welding stations. They can be linked with manual workstations, handling systems or robots.

Modules or complete ranges can be quickly and easily adapted or reused for a new production line. During the intensive development process, HUMARD Automation SA adapts the product design to the requirements of the production process. "We work with the customer to design and implement the entire process up to the delivery of a turn-key system," said Fabio Carabotti, Project Manager at HUMARD Automation SA. Furthermore, the company assumes responsibility for technical components, which it purchases from thoroughly vetted partners.

Recently the Swiss company was looking for a CNC lathe to be used in the manufacturing of an automated production line that was fully adaptable to the customer's special requirements. The bulk material-six different rotationally symmetric sheet metal parts with diameters up to 5"-is separated by a sorting station and forwarded to a special linear handling gantry. It feeds the blank to the lathe chuck, and in exchange takes a finished part using a complex dual gripper. After quality control, the finished component is handed over to the next station. Decisive criterion for the selection of the lathe: a total cycle time of 7 seconds, making it critical to the productivity of the entire production line.

"The basic performance data of KNUTH'S Numturn 320 box-way lathe were just as much of a factor as the ability and willingness of the German team in Wasbek to make modifications and jointly engineer the mechanics, electronics and controls," said a KNUTH spokesperson. To ensure synchronization with the gantry loader, the lathe's hardware was extended and the PLC underwent extensive adaptations. The hydraulic vise was replaced with a pneumatic high precision chuck with a change time of only 2 seconds, for a total cycle of 7 seconds. With this high level of productivity and the reliability of the machine supplied by KNUTH, HUMARD Automation SA was able to fulfill the ambitious demands of its customer.

"Modifications to the machine were successful due to the fact that KNUTH employs superbly trained hardware and software specialists," said the spokesperson. In addition, the company benefits from its OEM partnership with Siemens and has extended access to its information and support.

"Despite a very tight time frame, cooperation with KNUTH was efficient and met all of our expectations," said Carabotti.

For more information contact:

KNUTH Machine Tools USA

590 Bond St.

Lincolnshire, IL 60069

847-415-3333

info@knuth-usa.com

www.knuth-usa.com

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