Emuge to display full range of workholding solutions at Gear Expo
At Gear Expo (November 1-3, Cincinnati, OH), Emuge Corp. will showcase their comprehensive line of clamping solutions. The precision workholding lineup on display will include: Emuge’s expanding-bush design System SG, used in many machining operations such as hobbing, shaping, and shaving for gear production, as well as milling and inspection. The System SG’s large surface area contact with the workpiece provides a clamping solution which is very rigid, accurate and repeatable. Also on display will be the high precision System SP, used not only to clamp workpieces but also to clamp tools. By applying an axial force, the clamping sleeves move in the direction of the force and expand radially. This eliminates the clearance between clamping sleeve and body, and between clamping sleeve and workpiece. System SP achieves concentricity of < 0.002 mm (corresponding to < 0.0001 inch).For workpieces that have a short clamping base or for diameters with a very large tolerance, System SZ is the best choice. By applying an axial force, a slitted collet is radially expanded by a cone. Simultaneously an axial movement occurs, clamping the workpiece. When the eccentricity between pitch circle and seating bore is very small, diaphragm clamping System SM is ideal. It allows clamping of the gear wheel at the pitch circle for machining the seating bore. The gear wheel is clamped in both axial and radial directions.
Emuge Corp.
www.emuge.com

Expanding collet systems have thru-hardened, interchangeable collet heads
Hardinge patented Sure-Grip Expanding Collet Systems are a one-piece body design that use exact-size, thru-hardened collet heads that will interchange with all assembly sizes from machine to machine. The collet heads have an under-over capacity of -.001” to +.015” (-.025mm to .38mm) from its specified size to accommodate a range of part diameters. Hardinge thru-hardened collets are keyed for accurate part positioning for repeatable performance. The Hardinge double-angle design offers true parallel gripping. Parallel gripping means that the collet expands equally the entire length of the collet rather than just at one end of the collet, providing maximum bearing contact against the part. This results in greater stability and better part accuracy. Parts are instantly centered and located without adjustment. Higher rpm and greater feed rates provide the ability to produce more parts-per-hour. The Hardinge Sure-Grip Collet System also features a built-in safety stop to prevent the collet from over-expanding. During chucking operations, parts can be located against the face of the arbor or against a machineable workstop. Machines or devices with ANSI type-A spindles and machines with collet-ready spindles or collet adapters can use the Hardinge system. 5C, 16C and 3J collet-style expanding collet systems mount directly into the collet angle of the spindle or in fixtures (collet blocks) with instant centering. There are no spindle adapters required. A2-5, A2-6 and A2-8 expanding collet systems will mount directly on the spindle. Hardinge also manufactures center arbors that use Sure-Grip Expanding Collets for grinding machines, lathes and other applications.
Hardinge Inc.
www.shophardinge.com

New, enhanced workholding features for latest machining centers
Kurt introduces HD and HDL Vises and Towers, replacing the Kurt DL430 DoubleLock and CT430 ClusterTowers. The HD and HDL series vises and towers are new, patented designs providing more options for faster setups, larger workholding capacity, and greater flexibility and precision to handle the broadest range of part configurations. Kurt HD and HDL vises and ClusterTowers have new quick-change jaw feature and fewer components for faster job changeovers. With a half-turn of a hex key, the stationary jaw on these vises and towers lifts off the vise or tower body. The jaw resets and self-aligns quickly without special tools. Spring preload design insures fast and easy loading of parts. Providing 0.0002 inch repeatable clamping accuracy (from part to part), the HD towers feature a self-adjusting holding block for clamping the same or dissimilar sized parts. To further enhance fast operation, an adjustable pre-load feature reduces handle turns for opening and closing clamping stations on the manual models. Both vises and ClusterTowers are available in manual and hydraulic models. The towers are available with four, eight or twelve stations and with a complete selecion of jaw options. The HD and HDL series of vises and towers have many options to handle most needs or Kurt will design a custom engineered setup.
Kurt Manufacturing Company
www.kurtworkholding.com

New 5-axis quick change workholding system
Jergens, Inc. introduces a new workholding system that dramatically reduces costly set up times on 3+2 multi-axis and 5-axis machines. The Fixture Pro 5-Axis Quick Change System permits multi-sided access to pallet-mounted workpieces and provides locating accuracy to help manufacturers increase productivity and maximize the capability of their 5-axis machines. Jergens offers modular system components in a variety of sizes and styles from inventory, with short turnaround on custom sizes for special applications. To allow unrestricted access to various part faces, this modular quick change system features a variety of off-the-shelf riser sizes and styles to raise your part off the table. The system also uses a variety of clamping elements specially designed so that jaws and other vise components provide rigid clamping forces without obstructing access to the part. All components of the Fixture Pro system have been designed with center location and timing pins that allow for incredibly accurate and repeatable part orientation, which eliminates the need to re-indicate. Jergens’ modular Fixture Pro 5-Axis Quick Change System can be mounted to any machine or rotary table, is ideal for integration with the Ball Lock Quick Change System, and includes a variety of subplates, center locating pins, timing pins, QLS bolts, risers, top plates, mini pallets, and clamps.
Jergens Inc.
www.jergensinc.com