Arbors

Arbors

Category: Machine Shop

Summary: Holding milling cutters.

Arbors are specialized holding devices used on machine tools, particularly milling machines, to securely hold and drive rotating cutting tools. They are essentially shafts with a means of clamping the cutter at one end and a mechanism to connect to the machine's spindle at the other.

   Here's a more detailed explanation:

Function: Arbors provide a rigid and accurate connection between the milling cutter and the machine, ensuring that the cutter rotates concentrically and without slippage. This is crucial for achieving precise and accurate milling operations.

Design: Arbors typically have a tapered shank that fits into the machine's spindle and a cylindrical body with keys or other features to drive the cutter. Spacers and locknuts are used to position and secure the cutter along the arbor.

Types: Arbors come in various types, including:

    Shell mill arbors: Designed to hold shell mills (face milling cutters).

    End mill arbors: Designed to hold end mills.

    Morse taper arbors: Utilize a Morse taper for spindle connection.

   In essence, arbors are essential for ensuring that milling cutters are held and driven properly, enabling efficient and accurate milling operations.