Product category:
Tooling and tools
News Release from: Schunk Intec | Subject: PZV four-finger concentric gripper
Edited by the Engineeringtalk Editorial
Team on 11 April 2006
Four-finger gripper handles cylindrical
workpieces
Four-finger concentric gripper for where cylindrical workpieces are magazined on one level can hold coplanar and cylindrical workpieces at a high positioning accuracy.
Schunk has introduced the PZV four-finger concentric gripper and will be showing it at Mach 2006 While two and three finger grippers cater for most industrial handling tasks, four-finger grippers are required where cylindrical workpieces are magazined on one level
This article was originally published on Engineeringtalk on 19 Dec 2003 at 8.00am (UK)
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Whereas three finger-grippers have at least one finger that would always collide with neighbouring components, the PZV profits in spacious circumstances with its four fingers.
The module can hold coplanar and cylindrical workpieces at a high positioning accuracy.
It can be used as a parallel gripper for clamping with two different pairs of top jaw fingers without problems and without having to set-up the fingers.
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Working with the strong pneumatic pistons, stable wedge hook system and the robust multi-tooth guidance, the PZV is available in four sizes of 64, 100, 160 and 200mm - achieving gripping forces from 580 to 7100N.
With strokes from 4 to 16mm, it can be used to cover many workpieces.
Also at Mach 2006, Schunk will be showing the PGN-Plus and PZN-Plus.
For where long fingers and high gripping forces often stand in conflict with the requirement of having compact sizes of the gripper housing, the grippers are equipped with a precise multi-tooth guidance.
Forces and moments of the gripper are spread over several surfaces of a multiple-tooth guide, enabling longer fingers.
The base jaws are precisely adjusted into the housing (0.01mm) to achieve a low guide clearance and to reduce wear.
The base jaws are synchronised by a stable wedge hook mechanism, which is guided via surface contact.
The required forces are achieved by a pneumatic piston while the gripper offers a range from 2 to 35mm stroke per finger.
The PGN-Plus two-finger parallel grippers are available in eight sizes to cover gripping forces between 140 and 13,000N.
The PZN-Plus three-finger centric grippers come in seven sizes with gripping forces from 580 to 38,700N.
The finger positions can be sensored by magnetic or inductive proximity switches or by a freely programmable position control system.
When using the FPS position control system, up to five positions per stroke can be monitored.
Each gripper can be ordered in a heat resistant or corrosion-proof design, but also in combination with a dust cover or with a spring operated pressure plate.
Engineering drawings in 2D and 3D CAD formats are available for download.
The PGN-Plus, PZN-Plus and PZV have many accessories available such as magnetic and inductive proximity switches, positioning sensors and finger blanks.
They can be used with rotary distributors and other robot accessories in the normal manner.
All three will be on stand 5129 at Mach 2006. Request a free brochure from Schunk Intec ...
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