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Nov 2015  
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Pick-and-place direct-drive module has a compact design
HP70 Pick-and-Place Direct-Drive Component
Tooling - HP70 Pick-and-Place Direct-Drive Component


3860 Ben Hur Ave.
Ste. 3
Willoughby, OH 44094

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March 2014 - WEISS North America Inc. has introduced its HP70 Pick-and-Place direct-drive component that is thin at 60 mm wide. Key to the HP70's design is a new drive concept that works with two linear motor axes that feature a unique "knuckle" design on the y/z axis that virtually eliminates the need for another linear motor for the z axis. Essentially, two horizontal axes with 125, 225, or 325mm stroke length are arranged in parallel above one another, and then connected via a kinematic unit. This guarantees a vertical stroke of 70mm.

The HP70's two axes do not run vertically towards one another. If a unit has one horizontal axis and one vertical axis fitted next to one another, it becomes wider. However, by arranging the horizontal axes in parallel above one another, a more compact unit is achieved.

Alongside its compact dimensions, the HP70 also impresses with other characteristics. The HP70 only brakes on one axis when transitioning from full-speed horizontal movement to vertical movement. The time-consuming start of a second axis is then completely eliminated. This allows the module to achieve over 100 cycles per minute with repeat accuracy of 0.01mm.

Given these distinct design advancements, the customer's end-use advantages are clear and simple. The same machining processes are handled in a smaller area and the floor space savings are immense as twice the number of work stations can be set up on the exact same rotary indexing table or linear assembly system. Concurrently, output enjoys a dramatic boost as the transport times from one processing station to the next are reduced. In many cases, the optimization potential can reach as much as 50%.

The design also offers another key performance benefit, as both motors are encapsulated in fixed casings. With the obvious exception of the grippers, no moving cables are required either outside or inside the housing. The process for changing and retrofitting components has also been simplified, as customers can now easily fit additional valves themselves while the device remains in the installation. The fast and convenient procedure for setting up motion sequences has also been carried over from previous models.

Additionally, the new unit is even more user-friendly, as the manual teaching of positions has been further simplified. The module can be moved freely and have its respective position saved by the WEISS Application Software (WAS) at the push of a button. Utilized for fast, convenient, and secure commissioning of all freely programmable WEISS components, WAS features a highly intuitive and uniform graphic user interface.

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