Chenab College of Engineering & Technology GRW

Subject: Machine Tool & Machining

Present To: Sir. Shakeel Ahmed 

Group Members: 

Usman Ali 2014-uet-ccet-mech-05M. Ahmad 2014-uet-ccet-mech-09H. Zahid Ali 2014-uet-ccet-mech-14Qamar Abbas 2014-uet-ccet-mech-15

 

Topic?

Tool-Holding Devices For Milling Machine

Tool-Holding Devices

A tool holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill. clamp, clinch. a device (generally used by carpenters) that holds things firmly together. holder. a holding device.Drill Chucks ColletTapping headArbor

Drill Chucks Most common devices used for holding straight-shank cutting toolsMost contain three jaws that move simultaneously when outer sleeve turnedHold straight shank of cutting tool securelyTwo common types

I. Key II. Keyless

Key-type

Three jaws move simultaneously when outer sleeve turned

Tighten with keyDifferent size keys for different size chucks

Keyless Chuck loosened or tightened by hand without key

Precision keylessHolds smaller drills accurately

Drill SleevesUsed to adapt drill shank to machine spindle

if taper on tool is smaller than taper in spindle

Drill Socket Used when hole in spindle of drill press too small for taper shank of drill

Used often as extension sockets

Collet  is a subtype of chuck which is device

used to hold a work piece or a cutting tool in the spindle of a milling machine.

Tapping head A self reversing tapping mechanism that

feeds into the tapped hole under spring resistance thus allowing the inward feed to be governed by the pitch of the thread being tapped. A reversing mechanism actuates at the bottom of the hole thus removing the tap like unscrewing a bolt.

Arbor The Arbor hole of the An arbor is a cutter

holding device with a taper shank to fit the spindle taper machine: the short or long shaft end is used to mount and drive one or more cutters. having holes that fit on to the arbor. Arbor is used on Horizontal Milling Machine.

Thank You!