5-axis modular hook-type pull clamping systems provide optimum downward forces to securely hold workpieces to fixture bases for safe, rigid, and consistent machining, fabrication, and assembly operations.
The hook clamp designs maintain a low profile to minimize obstructions and interference with tool paths and processing access, eliminating multiple setups and secondary operations. These clamps can be mounted directly to a fixture base adapted to accept the clamp base or attached to the fixture using a clamp holder.
Designed for use on horizontal machining centers, the clamping modules provide safe and easy loading and unloading of heavy workpieces or fixture plates with a simple and single setup with quick clamping. Hook-shaped clamping screws mount onto hook modules, enabling you to position and hang workpieces before clamping, and providing a quick and safe workpiece setup in vertical workholding for 5-axis machining with no tool interference.
Fixtureworks offers several types of hook clamping systems from a standard clamping system to ones with a tapered hook type for clamping and locating. They are available in thread sizes from M8 x 1.25 to M16 x 2 with diameters that range from 0.5 to 1 in. (12 to 24 mm) and length on the threaded portion from 1 to 2 in. (25 to 51 mm) with overall length from 1.5 to 3 in. (37 to 73 mm).
With the tapered screws, the system can be used for both clamping and locating a fixture plate or workpiece. The tapered bushing is made from 1045 steel. The clamping screw is made from 4135 steel.
Also available are hook-type modules with steel body and black oxide finish with diameters from 2 to 3.5 in. (46 to 93 mm) with clamping force from 1,800 to 5,600 lb. (800 to 2,500 kg).