JB/T 12313-2015Electrical control systems of machine tools - Miscellaneous function M codes and macro variables for CNC lathes (English PDF)

National Standard of the People's Republic of China

ICS

29.020

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 M codes of the auxiliary functions
• 4.1 General provisions
• 4.2 Definition of the M codes of the auxiliary functions
• 5 Macro variables
• 5.1 General provisions
• 5.2 Requirements for the general macro parameters in a machining program
• 5.3 Requirements for the macro parameters in an automatic cycle
• 6 Examples of application
• Annex A (normative) Examples of axis movement on numerically controlled lathes
• Annex B (informative) Examples of macro variables
• B.1 How macro variables are written
• B.2 Types of macro variable
• B.3 Display of macro variables
• B.4 Reference to macro variables
• B.5 Restrictions on macro variables
• Annex C (informative) Examples of machining programs
• C.1 Example of a part to be machined
• C.2 Example of a machining program (type A)
• Annex D (informative) Examples of cycle program programming
• D.1 General
• D.2 Drilling, centring LCYC81
• D.3 Thread cutting LCYC97
• Bibliography
• Figure 1 Ellipse parameters
• Figure A.1 Example of axis movement on an ordinary lathe
• Figure A.2 Example of axis movement on a twin turret lathe with a programmable tailstock
• Figure A.3 Example of axis movement on a vertical numerically controlled lathe
• Figure D.1 Position of each parameter during machining
• Figure D.2 Diagram of drilling or centring
• Figure D.3 Diagram of a thread
• Figure D.4 Example of thread machining
• Table 1 M code function table
• Table 2 Macro parameter function table
• Table B.1 Types of macro variable
• Table D.1 Meaning of the parameters
• Table D.2 Meaning of the parameters