What is drawbar in spindle?

A drawbar or spindle drawbar is a clamping mechanism for toolholders on machine tools. The toolholder or machine taper itself is held by the drawbar and applies force to the spindle, especially when spinning at low speeds.

What is a CNC power drawbar?

Product Description. The Power Drawbar is a CNC-class pneumatic system that automates the task of loosening and tightening the drawbar when changing a tool on a milling machine. This greatly expedites the tool changing process and adds a great deal of convenience.

What purpose does the drawbar serve?

Put simply, drawbars are a rod that goes through the spindle shaft and draws the tool holder with the tool into the spindle shaft ID. In doing so, the drawbar exerts force on the toolholder itself, steadying it in the spindle. It’s essentially a clamping mechanism.

What is maximum drawbar pull?

DRAWBAR PULL, MAXIMUM: The maximum towing force in pounds or Newtons at a specified coupler height that a truck will develop on a level surface.

What is a hitch drawbar?

A drawbar (or sometimes called ball mount), is the metal piece that slides into the hitch opening to provide the attachment point for a hitch ball for trailer towing.

What is a normal drawbar pull?

DRAWBAR PULL, RATED NORMAL: The greatest sustained towing force in pounds or Newtons at a specified coupler height that a truck will develop on a level surface and within a given duty cycle without exceeding the allowable continuous temperature rating for the components.

How is drawbar power calculated?

Power (kW) = To × N 9549 where kW = kilowatts; To = torque (Nm); N = speed (rpm). Drawbar power (Dbhp) is power measured at the point implements are attached to the tractor, drawbar or 3 point hitch.

What is clamp force?

Clamping force is the force (lbs or kg) needed to hold the mold together during injection and it is applied by the clamping unit of an injection molding machine. It is one of the most overlooked portions of the Injection Molding process.