Rack and pinion mechanism in drilling machine This drive mechanism is based on Rack and Pinion Mechanism. Now, by the rotation of hand-wheel, the spindle moves up and down in the vertical direction in order to give the necessary amount of feed to the work and this drill bit is used to make the holes on the component placed in the machine vice. As the Pulleys rotates, the spindle also rotates which can rotate the drill bit.

Now the drill bit also rotates which was placed in the chuck and which was in connection with the spindle. Here a V-belt is used instead of a flat belt, in order to increase the power efficiency. Now, a V-belt is placed in between the stepped pulleys so as to drive the power transmission. On the other end, one more stepped pulley is attached and that is inverted to increase or decrease the speed of the rotational motion.

When the power is given to the motor, the spindle rotates, and thereby the stepped pulley attached to it also rotates. It is the major part of this machine and is used to remove the material in the form of holes from the surface of the workpiece. It is used to hold the drillbit along with jaws. It is used to lock the swivel table at the desired location. Generally, 3 jaw chuck is used for holding circular components and 4 jaw chuck is used for holding rectangular components. Here, the rotational motion is converted into linear motion by means of a Rack and Pinion mechanism which was explained below. Drill Feed Handle:īy the rotation of hand-wheel, the spindle moves up and down in the vertical direction in order to give the necessary amount of feed to the work. The power transmission is explained in the working of the drilling machine. It consists of motor, stepped pulley, V-belt, and the Spindle. The Swivel table can move up and down by means of rotational motion and can be locked to the column by means of locking nut.

It is attached to the column which can hold the machine vice in the grips and thereby, the workpiece is fixed in the machine vice to carry out the drilling operation. It is exactly placed at the center of the base which can act as a support for rotating the Swivel table and holding the power transmission system. absorb the vibrations induced during working condition) and for these reasons, it acts as a base to the drilling machine. The base is made up of Cast Iron which has the capability of high compressive strength, good wear resistance, and good absorbing capability (i.e. Spindle Explanation for the parts of Drilling Machine: Base:.Power Transmission system (Stepped Cone Pulley).The parts of Drilling Machine are as follows.

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