Question 1. What are the two main types of milling machine?
Answers: The vertical and horizontal milling machine
Question 2. What is the main difference between the vertical and horizontal milling machines?
Answers: The main difference between the vertical and horizontal milling machines are that the spindle is vertical in the vertical milling machine and is positioned horizontally in the horizontal milling machine. The vertical milling is the most common milling machine used in the workshop.
Question 3.Explain axis designation on a vertical milling machine?
Answers: The axes are designated as follows: The axis to the left of the workpiece is designated as –X and the axis to the right is +X. The axis from the workpiece towards the operator is -Y and back is +Y. The axis upwards from the workpiece is +Z and downwards is –Z.
Question 4. What is the function of the Spindle on the vertical milling machine?
Answers: The milling cutter is held in the Spindle of the milling machine. The Spindle rotates about the vertical (Z) axis and drives the cutter during the milling operation. The Spindle can also be used to move a drill up and down either manually or automatically. The spindle can be tilted for milling or drilling at the required angle, by rotating the head of the machine.
Question 5. What is the function of the Table on a milling machine?
Answers: The Table supports the workpiece during the milling or drilling operations. The table can be moved along the X (left or right), Y (back or forth) and Z (up or down) axes. The workpiece is either held in a vice or can be clamped directly onto the table
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