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AUTOMATIC PCBDRILLING SYSTEM

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A printed circuit board , or PCB , is used to mechanically supportand electrically connect electronic components using conductivepathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate .

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C reating holes on single or multilayer printed circuit

boards (P CB s) is an important stage in Electronicproduction . Holes of different sizes and at a largenumber of positions (up to thousands) must bedrilled with high precision for manual or automaticinsertion of various electronic devices andC omponents . A drill machine may be used for drilling holes on the P CB. B ut accuracy maydecline when used by an untrained user . Thus, for the same an automatic P CB drilling machine is

designed.

This machine improves speed andaccuracy of drilling . This can also be convenientlyused by an untrained user .

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A utomatic PCB Drilling System, have been prepared to makeholes on a Printed Circuit Board (PCB) with high accuracy andprecision.

It is fully computer controlledPCB Drilling System.

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O ur System basically is a combination of software as wellas hardware part, of which software part is developed on thestandard language platform ( C#.N et) .

The hardware part is an embedded system designed byourselves, in order to have a successful output of our software .

B oth of this have been interfaced afterwards with the helpof a Microcontroller which plays a crucial role for the same .

CONTINUEDu

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F URTHER DESCRIPTION

NEED :-Necessity is the mother of Invention, But once a

thing is invented, human mind desires to add to itssumptuousness

Creating holes of different sizes and at a large number of positions on printed circuit boards (PCBs) can bedrilled with high precision for manual or automaticinsertion of various electronic devices and components.

A drill machine may be used for drilling holes on thePCB.

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F UNCTIONS:-

T his machine tends to improve the speed, accuracy and precision of drilling the holes with lot of ease.

T his can also be conveniently used by an untrained user.

Also this machine can be used in order to draw the trackson a PCB before etching.

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V IEW OF AUTOMATIC & MANUAL PCBDRILLING MACHINES

M anual PCB drilling machine A utomatic PCB drilling machine

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F inal model of our A utomaticprinted circuit Board DrillingM achine.

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Position

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W e have designed and planned to build anautomatic PCB drilling machine having a rigidmechanical base, robust electro mechanical

parts, and an effective control electronic circuitry.

Still there are some refinements and improvementsneed to be done.In this project, specifications of a simple

prototyping machine is achieved by drilling onehole in 5 seconds with a theoretical resolution of 4.375 microns. T he 3-axis precise control of thedrill head movement totally eliminates the errors

that might occur in manual drilling.