Delta DVP-10PM, Applications Manual

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9
Electrical CAM
DVP-PM Application Manual
9-1
9.1 Introduction to Electrical CAM (E-CAM)
Mechnical cam system consists of 3 parts including a cam, a cam follower, and a fixed linkage.
„ Mechinacal cam is a rotating piece with irregular form, usually an input device with steady rotation rate,
operates cam follower to produce a smooth reciprocating motion through the fixed linkage between the
cam and the follower.
„ Cam follower is a type of roller or needle bearing designed to be driven by the cam. Usually the cam
follower is an output device for producing discrete signals.
„ Fixed linkage is the frame for linking and fixing the cam the the follower.
Cam
Cam follower
In comparison with mechanical cam system, there are many advantages of using E-CAM
„ E-CAM provides a more user-friendly interface.
„ Not necessary to modify machinery system when different production process is required. Users only
need to modify the E-CAM data in CAM chart by software.
„ Higher acceleration speed can be achieved.
„
Operation is smoother.
DVP-PM
Mechanica l cam
Controller
Drive
Motor
Ca rdin al shaft
Gea r
Clutch
Differential
Gear
Transmission
Cam
Ph ase integration
mechanism
Motor
Ca m
Follower
Action
E-CAM
Servo
Drive
Se rvo
moto r
Ball
screw