The magnetic drill has seen many developments since 1973, when it was invented and launched on the market. There are various magnetic drills depending on the purpose of use. Brief information about the types of magnetic drill is given below.
This is a complete step-by-step guide to using plate bevelling machines. In short, this article covers the following points.
- Components of the SKF 25 bevelling machine
- Safety precautions before setting up the plate bevelling machine
- Checking the workpiece
- Adjusting the milling head of the bevelling machine
- Setting the width on the bevelling machine
- Adjusting the angle
- Tool change
- Routine maintenance of the machine
Components of the SKF 25 plate bevelling machine
Safety precautions before setting up the plate bevelling machine
The bevelling machine can be operated only in the horizontal position.
Secure the workpiece.
The surface of the workpiece must meet the following requirements.
The surface must be smooth and free of any burn marks, slag, weld seams or the like.
Remove surface irregularities before starting the milling operation.
Adjusting the milling head
Place the machine on its upper side (power supply cable).
Release the locking mechanism (2) on both sides of the machine.
Set the milling angle you want.
The milling angle can be read on the scale (1).
Tighten the locking mechanism (2) on both sides of the machine.
Setting the bevel width
Place the machine on its upper side (power supply cable).
Release the locking mechanism (1).
Set the bevel angle you want by turning the adjusting screw (3).
The bevel width can be read on the scale (2).
Tighten the locking mechanism (1).
Fitting the guide roller for milling plate
Fit the plate (3) as shown in the figure.
Secure the guide rollers (2) in the bore (1) with the washer and nut.
Proceed as follows for milling:
‹ Align the workpiece horizontally and secure it.
‹ Fit the guide roller according to the application required.
‹ Set the milling angle and the bevel width.
‹ Plug the machine into the mains socket.
‹ Place the machine on the workpiece so that the cutter does not engage the workpiece.
‹ Switch the machine on,
‹ Slide the plate bevelling machine slowly from right to left in the direction of the arrow. The tool works against the direction of travel.
‹ Switch the plate bevelling machine off
‹ Unplug the machine from the mains socket.
Using the plate bevelling machine
The following procedure shows how the plate bevelling machine is operated:
Switching the machine on;
Turn the main switch (1) to position "1".
Press the green push button (2) to start the milling motor. The yellow indicator light (4) comes on.
Switching the machine off;
Press the red push button (3) to switch the milling motor off.
Turn the main switch (1) to position "0".
Restarting after an overload;
To switch the machine on again after an overload, press the red push button (3) first and then the green push button (2).
The red indicator light (5) flashes in the event of a temporary overload.
In the event of a continuous overload the red indicator light (5) comes on and the milling motor is switched off.
Indexing the insert;
Place the machine on its upper side (power supply cable)
Undo the screw (2).
Remove the guard (1).
Undo the clamping screw (3), index the insert and tighten the clamping screw again.
Repeat the procedure for all the inserts of the cutter.
Refit the guard and tighten the screw (2).
Replacing the inserts;
When an insert is completely worn it has to be replaced with a new one.
Undo the clamping screw and remove the insert.
Fit the insert and tighten the fixing screws again.
