Post on 16-Apr-2017
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!