Building upon the company’s existing comprehensive range of zero-point clamping systems, Zimmer Group is expanding the series with the launch of its new pallet-changer technology. In addition to changing pallets in machine tools, this system also opens up numerous other applications, such as the handling of components using robots while maintaining high levels of repeatability.

The slim design and low set-up profile of the clamping plate and clamping pallets, allow both close-proximity pallet loading on the machine table and optimum use of the space within the machine. High clamping forces create arigid system, while the retaining forces enable high torque levels, together with a high-precision connection between the robot and the clamping plate to make the handling of heavier pallets, in particular, easier and safer.

The structural design of the pallet changer means that system clamping takes place without the need for pneumatic pressure. However, it is possible to increase the clamping forces further by using Zimmer’s Plus connection, which provides pneumatic assistance. In addition to four rotation locks for pallet coupling, the system features an integrated blow-out or cleaning function that prevents dirt or liquid from collecting in the pin holder, contact surface and rotation locks.

Notably, the pallet coupling is used as a pallet interface for the product and creates the connection to the clamping pallet. The rotation lock enables backlash-free positioning of the bearings when joining with the product, whilesensors for piston position and clamping position verify safe operation. All functions are controllable directly via the pneumatic connections on the sides. There is also the option to control the unit by means of alternative connections on the bottom of the product.
For further information www.zimmer-group.com

Now available in the UK from Floyd Automatic Tooling is the expanded range of MASA Microconic over-grip spindle collets. The precise and stable clamping of small workpieces in the sub-spindle of sliding-head machines has long been an issue for turned part manufacturers; MASA says it has revolutionised this ‘pain-point’ for manufacturers to deliver precision work-holding operations.

Until now, this solution has been available primarily on 20 and 32mm capacity sliding-head machines. However, MASA is now expanding the series to cater for manufacturers working on 10 and 12mm diameter capacity models.

To truly understand Microconic, manufacturers must first consider that only three things are in physical contact with the workpiece, the cutting tool, coolant/cutting fluid and workholding. MASA’s Microconic over-grip collet system ultimately allows manufacturers to rethink what is possible. This work-holding system consists of a cartridge and precision collet. The over-grip collet fits inside a cartridge and allows accurate adjustment before fitting directly into the existing collet sleeve with no machine adaptations required.

The patented over-grip collets can open up to 4mm larger than the clamping diameter and can also incorporate an ejection guide sleeve blank, which helps the end user to solve the difficulty of ejecting parts from the collets after machining. This allows manufacturers to reach behind flanges, parts with heads or any other enlarged feature.

Suitable for processing components with stepped features such as connectors, screws or other common parts, the over-clamp system can clamp over the protruding features and securely clamp on the main body of components. The collets are available with clamping diameters from 0.2 to 10mm, offering concentricity of 3-5µm.
For further information www.floydautomatic.co.uk

Manufacturers must overcome specific machining challenges cost effectively. With this goal in mind, Seco offers its comprehensive range of hydraulic chucks and accompanying reduction sleeves in three versions, each able to accommodate several tool shank size variations for reduced tooling inventory. With 360° tool-shank holding strength and precise centring, the hydraulic chucks and expansion sleeves ensure reliability, along with exceptional machining performance and maximised tool life, reports Seco.

For simple, easy-to-use, versatile tool holding, the three versions of Seco hydraulic chucks include the HC Conventional, HCR Reinforced and the HCS Slim. The HC Conventional delivers precision holding for drilling, reaming and light milling. As a universal solution, the HCR Reinforced provides effective holding for all applications from HSM to HPM and for all kinds of tool shank types like cylindrical, weldon and whistle notch. The HCS Slim is suitable for accessing deep, narrow part cavities during five-axis machining at high speeds. Seco’s hydraulic chucks support all of the company’s round tools.

“Complicated tool-holding systems not only require special care and training to avoid operator injury, they add extra time and costs,” says Seco product manager Yves Heitz. “Seco hydraulic chucks and reduction sleeves eliminate the risk, as well as any extra maintenance,so users get in-cut faster while gaining tool-holding versatility with less required tooling.”

For added flexibility to accommodate a wide range of cutting tool sizes, 05FHC slotted reduction sleeves allow one holder to handle various shank diameters. They provide through-tool or peripheral cooling capabilities and work with either metric or inch-size tools.
For further information www.secotools.com