New work-holding system from the USA

An alternative to the traditional machine vice is being marketed in the UK by NCMT Ltd, Thames Ditton (www.ncmt.co.uk), under a new agency agreement with the US manufacturer Techni-Grip. The patented system provides secure clamping for single or multiple parts and can reduce the number of operations required for machining components — particularly complex ones.

The highly repeatable work-holding system is based on a pin-and-hole design for consistent, positive location combined with a dovetail cut for gripping strength. The holes and dovetail are machined into each billet in a rapid preparatory cycle before clamping; and by standardising billet preparation and set-up, the number of fixtures needed can be cut by up to 80%. Further benefits include easy workpiece set-up and removal, and a reduction in excess material required for clamping while eliminating dimensional distortion caused by conventional vice pressure.

By locating on two pins and holding onto just 2.5-3.0mm of material, Techni-Grip units allow virtually unrestricted cutter access to the component being machined. No clamps, vice handles or other fixture accessories are needed.