Introduction to CIM Lab-97-2000

7/30/2019 Introduction to CIM Lab-97-2000

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5/7/2013B.S.Kakol IP department 1

It consists of 3 phases1. CNC Programming

(6 sessions)

2. Hydraulic and Pneumaticcircuits designing

(4 sessions)3. Robotic Programming

( 2 sessions)


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A numerical data in the form of

program which is used to controla system.

This data is stored in punchedcards/magnetic tapes


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NC CNC DNCInput device for loading

program is punched tape

Punched tape may or may

not be used

Total elimination of

punched tape

Flexibility is less More flexible More flexible

Tape readers are essential Tape readers are not that

much essential

Tape readers are not

required

Off line programming is

not possible


possible


possible

Optimum selection of

feed/speed is not

possible, because ofabsence of AC


feed/speed is possible


feed/speed is possible

CAD/CAM cannot be

infected

CAD/CAM can be

infected

CAD/CAM can be

infected

Difference between NC/CNC/DNC


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1. Machine Control Unit (MCU)2. Machine ToolData Processing Unit

MCU (DPU)Control Loop Unit

(CLU)


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5/7/2013B .S. Kakol IP department 5

High flexibility High accuracy Short production time

Easy adjustment of machine Skilled operators are not required Jigs and fixtures are not required

Unit cost is less Better quality


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According to the type of machine

a) Point to Pointb) Straight cut machining

c) Continuous path/contour machining

According to the structure of control unit

a) Analog b) Digital

According to the type of programming

a) Incremental b) Absolute

According to type of Control loop

a) Open loop b) Closed loop


7/155/7/2013B.S.Kakol IP department 7

Fluid is a common word forHydraulics and Pneumatics

Hydor means Water

Pneumo means breathing



There are two different systems of fluid systems

a) Fluid transport system :To deliver fluid from one location to anotherto accomplish some useful purpose(Flow through pipes, Bernoulli's equation

b) Fluid power system:deals with generation, control and transmissionof power, using pressurized fluids.( Pascals law)



Statement-

Pressure applied to a confined fluid istransmitted undiminished in all directionsthroughout the fluid and acts perpendicularto the surfaces in contact with the fluid


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A Robot is a mechanical device whichperforms the tasks automatically

It consists ofa) Power Unitb) Control Unitc) Actuators

d) Armse) End effectors


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Polar, spherical robots

Cylindrical robots Cartesian robots - gantry robot Articulated robots

SCARAPUMAsnake

Others: parallel


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Degree-of-freedom(DOF) Payload

Resolution Repeatability Accuracy

Speed Work Volume


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Robotic programming is a process ofcreating the software to perform a specifiedtask by in a specified manner.

Introduction to CIM Lab-97-2000

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