Topic 6.1

What is the main purpose of machine leveling during the installation of a CNC lathe?

• To reduce power consumption

• To ensure the machine is flat and accurate

• To increase cutting speed

• To reduce noise

Which tool is used to check the level of a CNC lathe?

• Vernier caliper

• Micrometer

• Spirit level

• Dial indicator

Machine leveling helps to:

• Increase spindle speed

• Prevent damage to the machine

• Reduce coolant flow

• Improve cutting tool wear

A lathe bed is tested for:

• Circularity and depth

• Straightness and parallelism

• Hardness and surface finish

• Concentricity and balance

The accuracy of a turned product depends on:

• Only the tool material

• Only the operator's skill

• Several mechanical and setup factors

• Only the cutting parameters

The running of the spindle true to its axis ensures:

• Smooth surface finish

• Accurate work production

• High cutting speed

• Tool life reduction

What is tested during spindle alignment?

• Spindle taper accuracy

• Axial movement and running truth

• Thread pitch

• Spindle temperature

Testing the spindle ensures:

• The machine produces accurate parts

• Higher coolant pressure

• More tool wear

• Reduced lubrication

The test for axial slip of the spindle checks for:

• Backlash in the gears

• Axial movement accuracy

• Tool offset setting

• Feed rate consistency

Which positions are used for testing spindle concentricity?

• I and II

• A and B

• X and Z

• Front and rear