Tooling & Workholding

Toolholders

The Toolholder is the essential connection between the machining center and the cutting tool. The toolholder fits into and is secured by the machining center’s spindle, and in turn secures the cutting tool such as a drill or end mill by clamping onto its shank. The taper of the toolholder matches the toolholder interface of the particular spindle. Toolholder tapers are often conical, including CAT and BT taper specifications. A different kind of taper, HSK, is not tapered at all, but instead includes a variety of flanges for securely locking the toolholder in place. Toolholders use different mechanisms for clamping the tool including set screw, collet, hydraulic compression and shrink-fit.

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Featured Zone Content

Gripper for machine tool

Video: Parts Gripper Allows Machine To Act As Its Own Robot


This footage shows a workpiece gripper that enables a machine to load and unload workpieces on its own.

toolholder balancing machine

Video: Balancing Tools And Toolholders


This video provides both the argument and methodology for performing offline balancing of tool/toolholder assemblies for high speed machining centers.



reCool

Through-Coolant for Swiss Machines

By: Chris Felix
This system allows shops to quickly transform the standard external-coolant live tooling heads on their turning machine turrets into those with through-tool-coolant capability.

NT Tool’s Power Hydro Chucks Provide Precision, Versatility

By: Lori Beckman
NT Tool’s PHC-A Power Hydro Chucks utilize a dual clamping-point system to provide 20-percent more clamping force than equivalent collet holders, and maintain 3-micron accuracy, according to the company.

Okuma Welcomes Velocity/Briney to Partners in THINC

By: Jedd Cole
The new membership of Velocity/Briney brings the Velocity Smart Tool to use with Okuma machines.

Emuge FPC

Mill, Drill Chucks Deliver 3 Tons Traction Force

By: Jedd Cole
Emuge introduces its FPC mill/drill chucks designed to improve rigidity, vibration dampening, concentricity, machining speed and tool life compared to conventional chucks for milling and drilling.

Smart Tool System

Optimized Machining out of the Box

By: Peter Zelinski
Four tooling-related companies partner to supply dynamically stable milling for improved productivity on existing machine tools. Users do not have to measure the dynamics of their machines. Instead, tooling tailored to the machine arrives as a complete assembly, along with software for quickly determining the parameters that tooling can be used to achieve.


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