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Magnetic Squaring Arm (Mark 2) for pressbrakes

Thank you for purchasing a Magnetic Squaring Arm. lt is designed to provide a guide for light bracket workwhere the use of only one rear gauge stop is practicable. lt is not necessary to m-ake any adjustments to thebasic operational procedures of the machine or any of its associated safety devices in ordeito jse this product.

This is a new idea utilising a magnet to secure the unit to the front die face" The design also allows both sides ofthe squaring arm to be used. "2" bends can also be accommodated where a cleai area in front of the die isre-quired. lt is of a lighter construction than the conventional clamp on system, and less likely to tip full lengths of"rail type" dies. die lBpinq, due to theweight of the squaring arm on the front of the die.

all toolsinstabilitv or misaliqnment.

For customers who prefer the added support of a small platform, it is available in both left hand and right handformats (left-hand version featured in the instruction diagrams).

To be able to use the unit effectively, the flat vertical die face area needs to be 32mm high by 90mm wide.The magnetic face and die area to be used must be clean and flat. This is very imporiant since magneticgripping strength falls away rapidly with even the smallest air gap (a sheet of papei or a contaminated die facehas a profound effect on grip). lf fitted correctly, the magnet willsupport a load of around 2kg. (Fig.3), assumingthat the magnet is allowed to grip on the minimum vertical die face area as specified (g0 x 32).

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The maximum tolerance between the squaring Arm and its guide pins is 0.'l0mm. This would give a possibleangular variation of 0" 10'. For finer tolerances manually set the Pivot Arm to compensate.

Shont Link

Base Ptoteextension

LockingECTEW

Squoring Ar r"r

Long Link

Pivot Anrr

Fig 1

For brackets with reverse bends ("top hat" or "2" sections), bothsides of the Squaring Arm may be used along with a re-positionedPivot Arm (Fig.2.). This is to provide clearance (if needed) direcfly infront of the die, without the Base Plate extension area causing anobstruction.

Re-positioning the Pivot Arm (Fig.2.):Slacken the three M6 screws and remove the one securing theShort Link to the Pivot Arm.

Rotate the Pivot Arm (and Long Link - about the M6 screw locatedin the slpt) around to the other side of the Squaring Arm.

lnsert the removed screw into the spare hole in the Short Link andre-tighten all screws ensuring the Pivot Arm sits snugly against theside of the Squaring Arm.

For the majority of applications, the unit will probably be usedas shown in Fig.1.This is for forming simple brackets, where both sides of thearm can be used if required (with the Base plate extensionproviding additional su pport).The unit is supplied with a Pivot Arm (for forming bends not atright angles to the Squaring Arm). This may be left in its"parked" position (as shown)when not in use.

The whole Squaring Arm assembly can be moved in andaway from the die area as indicated, by slackening theLocking Screw (and re-securing in its new position).Movement of the Arm over the die is potentiallv hazardous -refer to later instructions for correct fitting.

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Fig 2

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Securing the unit to the die:With the machine switched off, offer the unit to the vertical die area, with the sliding arm extending over themagnetic face and the Hook left free to swivel and self-align (Fig. 3.). Handle the qauqe from the back, to avoidthe possibility of pinchinq finqers between the maqnet and die face.

With the Hook resting on the vertical die face; lock the Hook in position (M6 screw - not shown). Gentlv easedownwards as indicated until the Base Plate is level with the top of the die.

Adjust the Squaring Arm towards or away from the die to suit the work to be formed ensuring it is well clear ofanv punch/die trappinq points, and lock into position (locking screw * Fig.1.).

lf the Hook does not interfere with either the work piece or punch/die trapping_points, it can be left in position: ithelps to provide a more stable platform.

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This application ispotentially hazardous -if unsure please ask!!!

Removing the unit:With the machine switched off, and the Squaring Arm/Hook extending over the die, apply slight downwardspressure on the end of the unit (area marked "2 Kg Max" in Fig.3), taking care to prevent the unit from falling.

lncreasing Squaring Arm travel over the die area (Fig. 5.):This application is aqain potentiallv hazardous - the Squarinq Arm must alwavs be positioned well clear of andto the side of the punch!

Very lmportant: lf using a single pillardie or vee close to the front edge ofthe die, it will be necessary to moveboth the Squaring Arm and Hook awayfrom the trapping area (Fig.4).The Squaring Arm can only be extendedover the die area if working well clear ofor to the side of the punch.Please remember that the maximumdistance that the Squaring Arm can beadjusted clear of the die face is 3mm. lfthis is insufficient to provide thenecessary safe clearances, work to theside of the punch.

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This could be useful for brackets with larger backstop dimensions,which may require extended guidance.

Remember, the Squarinq Arm cannot be adiusted clear of the dieface. The adjustment is from 16mm. to 61mm. over the die.

To increase travel over the die, the Squaring Arm must be rotated:

Slacken the Locking Screw to enable the whole Squaring/Pivot Armassembly to be lifted clear of its slide pins (about 4mm. verticalmovement).

Rotate the assembly 180' (about the Locking Screw) and re-engagethe slide pins.

Adjust the Arm to its required position and tighten the LockingScrew.

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Setting an Angle:Adjusting the Pivot Arm (Fig.1.) can set angles. Slackening all four M6 screws and moving the pivot Arm to arequired position (Fig. 6, 7 & B) does this.

It should be noted that lt is only necessary to release the Locking Screw (Fig.1.)forfrontto-back Squaring Armadjustment (any angle set by the Pivot Arm remains fixed, held by the three remaining screws).

Fig.6: Anqles up to approximatelv 48":

The projected edge of the Pivot Arm is clear of the Squaring ArmAssembly.

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Fig 7,

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Fig.7: Anqles from approximatelv 48'to 54":

The projected edge of the Pivot Arm does not clearthe Squaring Arm. Re-locate the unit to the sideof the punch.

(Short Link remains clear of the Pivot Arm leading edge).

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Setting an Angle (continued....):

Fiqs B & 8A: Anqles from approximatelv 54'to B3':

lf the Pivot Arm is set for an angle between 54' and 83' (maximum), the Short Link hole centres needchanged(Figs8&8A).

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Do not use the Pivot Arm to set an angle with the Squaring Armmounted in its reverse position (Fig.9.).

(The work piece will be forced into the Pivot Arm during folding,which may dislodge the unit).

Precautions:

Magnets deteriorate rapidly if exposed to heat. Keep the unit in a safe, dry place when not in use.

Should the gripping face become contaminated with magnetised debris, use a small piece of plasticine (orsimilar substance such as .BLU-TACK") to dab the area clean.

When locking the Squaring or Pivot Arms into position, ensure the connecting Long and Short Links do notoverlap the vertical gauging surfaces (to avoid fouling the work piece as it is formed).

The underside slot in the Squaring Arm and the Base Plate Guide Pins should be lightly greased periodically.

Remember, the unit is only secured to the die by a magnet: it can be easily disturbed and damaged by incorrectfitting or rough handling. Treat it like an instrument and it should give good service.

ln the event of the unit becoming accidentally dislodged from the die, we would recommend the use of theappropriate protective footwear to prevent possible injury.

Never be afraid to ask questions if not sure. lf in doubt, always ask!

tlI \,y'onkpiece

lssue date: '1Bth August 2005

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