TAILIEUCHUNG - Lecture Basic programming of cnc milling machine

Lecture "Basic programming of CNC milling machine" provides students with the knowledge: General coordinate System, designation of machine axes, machine coordinate system, work coordinate system, work datum setting procedure, work coordinate system – Selection,. Invite you to refer to the disclosures. | BASIC PROGRAMMING OF CNC MILLING MACHINE Course contents Page No. General coordinate System 04 Designation of machine axes 05 Machine coordinate system 06 Work coordinate system 07 Work datum setting procedure 09 Work coordinate system – Selection 11 Structure of program 13 Course contents Course contents Page No. Basic G codes 17 Basic M codes 26 Tool length compensation 27 Cutter radius compensation 29 Programming Examples 35 Canned cycles – Drilling 47 Pattern of holes 74 Custom macro programming 87 General Co-ordinate system General coordinate system Designation of machine axis Designation of machine axis Machine coordinate system The point that is specific to machine and serves as the reference of the machine is referred to as the machine zero point Machine tool builder sets a machine zero point for each machine Machine coordinate system Work coordinate system A coordinate system used for machining a workpiece is referred to as a workpiece coordinate system A workpiece co-ordinate system is also called as work reference zero or work datum The work datum will be set by the user before the machining process begins Work co- ordinate system Work coordinate system A coordinate system used for machining a workpiece is referred to as a workpiece coordinate system A workpiece co-ordinate system is also called as work reference zero or work datum The work datum will be set by the user before the machining process begins Work co- ordinate system Work datum setting procedure Move the work table and spindle head to the reference position Attach a dial gauge or fix the reference tool in the spindle Bring the tool towards the work piece in rapid mode or manually and make the tool to touch on the surface of the workpiece and note the Z axis reading. Then add the tool length with the same sign to get the Z co ordinate value and note down this value WCS MCS Work datum setting procedure Work datum setting procedure cont., Then move the .

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• General coordinate System
• Machine coordinate system
• Basic programming of CNC milling machine
• Tool length compensation
• Cutter radius compensation
• Programming Examples
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