Modular Fixturing Flashcards
Any standard or commercial jig and fixture component may be considered to be modular
True
Major advantage of dowel pin systems
Automatic positioning of the components from one tool to the next
Any tool over 30 lbs needs
Hoist rings
Jigs mostly for
Drilling operations
Fixture keys
Accurate relationship btw fixture and machine tool
Holds fixture in position during machining
Use of set blocks for batch production
Always ref. Cutter to fixture not the part Set blocks eliminate 1st part variations.
Tack time
Available time / customer time
Push clamp ( power work holding)
Fluid pressure advances plunger and spring load retracts it
Pull clamps (power workholding)
Simplest way to convert Manuel to power most versatile
Overall equipment effectiveness calc
Maxine availability x performance x quality
Modular fixturing
Work holding system uses a series of reusable standard components build variety of special purpose work holding devices
Threaded inserts
Repair or construct existing threads in tooling
Template jigs
Most simple. Least expensive and held in my hand. Designed for accuracy and speed
Plate jigs
Similar to template except has built in clamping device. Usually screw clamp
Table jigs
Template or plate jig raised upon legs
