مكائن تطريز في عمان للبيع

Maintenance of Machine tools

Objective :

• Equipments and machine tools are very 

    important component of production activity

•Break down of machines resulted in reduced production and it will be great loss

•It is very important to maintain machine tools to minimize loss and to improve the production

Definition

     Maintenance is the process of keeping the machine and equipment in good working condition so that the efficiency

     and life of the machine is increased

Advantages of good maintenance

Increased life of the machine

Ensured quality of the product

No production loss

Machinery is not damaged

Disadvantages of bad maintenance

Loss of production

More wastage of material

Reduced life

Leads to accidents

Cost of production is increased

Lathe maintenance

   The  lathe is a precision machine tool and must be treated with great care. Regular cleaning and maintenance will help to assure that the lathe will maintain its service life and accuracy for many years

    Lathe maintenance involves maintenance of

•Drive belts

•Gib Adjustment( cross slide, Compound slide)

•Wipers Pads

•Adjusting the Tailstock Clamp

Adjusting belt tension

•Drive belts come in matched sets and should only be replaced with a matched set of belts.

• Visually inspect the drive belts for excessive wear and cracking.

•If you notice that one or more of the drive belts appear to be excessively worn replace it with new one

•Check the belt tension by applying finger pressure to each belt at a point midway between the two pulleys

• For correct tension a deflection of about 6-8mm  should be evident in each belt.

•If the amount of deflection is more than 6-8mm in any one or more of the belts adjust it with belt tensioner

Gib Adjustment

•All lathes employ precision slide ways.

• The saddle, cross slide, and the compound slide all ride along a box slide way or dovetail slide way

•After time the parts that ride along the slide ways begin to wear

• To compensate for this wear, machine tools are equipped with adjustable parts called gibs that allow you to eliminate the space that has been created by the wear between the slide ways

Gib Adjustment Procedure

•The procedure is to first loosen the similar gib screw in the rear face of the tool slide

• Then re-tighten the front screw to lock or adjust the Gib in its new position

•After making the adjustment, traverse the compound slide over its entire travel to be sure of smooth, even operation