BASIC COLUMN DRILLING MACHINE(2)
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Transcript of BASIC COLUMN DRILLING MACHINE(2)
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ADVISOR : EN.RIDHUAN
PREPARED BY :NORMAZIAH BINTI CHE MUD 2008358819
NORFAZLIYANA BINTI MOHD ZULKIFLI 2008593937
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y A drilling machine is atool used to preciselydrill holes to exact
depths
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y This control station consistof on off buttons,
emergency stop button,coolant switch, and feedlever.
y The feed lever is used toraise and lower the drill bitso that holes can be cutaccurately.
1. CONTROL STATION
Coolant Switch
On Button
Off Button
EmergencyStop Button
Feed Lever
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2. MOTOR
To drive the gear androtate the spindle
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3.SPEED CONTROLLER
This machine have 8different speeds
The maximum speed is2100 rpm
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4. ADJUSTABLE
WORKTABLE
Table to place the workpiece.
It can be adjusted.
The table can beadjusted up or down thecolumn to the properheight.
It can also be swivelledaround the column tothe desired workingposition.
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The drill chuck holds thedrilling tools such as a drillbit, which is tool used tocreate cylindrical holes.
The chuck is raised andlowered using the hand lever.
Chucks come in differentsizes which depend on thediameter of the largest drillbits that can be used.
The spindle holds the drillchuck, which holds thecutting tools such as drill bits.
5. DRILL CHUCK ANDSPINDLE
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1) Switch on the insulator
2) Release the emergency stop button
3) Set the suitable speed base on the material.4) Clamp the workpiece and adjust to the drill bit
5) Push the green button to start drilling.
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TYPE OF SLIDEWAY
Cylindrical Type Slide way
FUNCTION To allow spindle to slide in order to raise or lower the
drill bit.
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The table allows a vise or clamp to position and lockthe work in place making the operation much moresecure.
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Limited work piece size.
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1) SAFETY ON THE MACHINES
Emergency Stop Buttons
Protector Shield This protector shield is attach to the limit switch. So
that when it is open, the machine will automaticallystop.
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2) OTHER SAFETY PRECAUTIONS
Do not support the workplaces by hand. Use a holdingdevice to prevent the work piece from being slip fromthe operators hand.
Never make any adjustments while the machine is
operating.Never clean away chips with your hand. Use a brush.
Keep all loose clothing away from turning tools.
Make sure that the cutting tools are running straight
before starting the operation.Never place tools or equipment on the drilling tables.
Always wear eye protection while operating anydrilling machines.
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To start a twist drill into the workpiece, the point of the drill must bealigned with the center-punched mark on the workpiece. Some drillingoperations may not require a precise alignment of the drill to the work, soalignment can be done by lining up the drill by hand and eye alone. If agreater precision in centering alignment is required, than morepreparation is needed before starting to drill.
For drilling, the spindle should rotate at a set speed that is selected forthe material being drilled. Correct speeds are essential for satisfactorydrilling.
Operators must know how to set up the work, set speed and feed, andprovide for coolant to get an acceptable finished product.
Speed can also be set depend on the diameter of hole that we want tomake.
Smaller diameter, higher the speed.
Larger the diameter, lower the speed.
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