The basis of the turning and milling compound instruction code is the G code, which is an instruction composed of letters and numbers used to control various actions of CNC machine tools. The following are some commonly used G-code instructions for turning and milling compound:
Basic turning and milling compound G-code instructions
Youdaoplaceholder0 G71 : contour turning compound cycle. The specific format is G71 U R P Q X Z F, where U represents the tool retraction in the X-axis direction, R represents the tool retraction in the Z-axis direction, P represents the number of rough turns, Q represents the feed rate of each rough turn, X represents the radial cutting depth, and F represents the feed rate.
Youdaoplaceholder0 G72 : face turning compound cycle. The specific format is G72 W R P Q X Z F, where W represents the tool width, R is the retraction amount in the Z-axis direction, P is the number of rough turns, Q is the feed rate of each rough turn, and F is the feed rate.
Youdaoplaceholder0 G73 : radial turning compound cycle. The specific format is G73 U W R P Q X Z F, where U represents the tool retraction in the X-axis direction, W is the tool width, R is the tool retraction in the Z-axis direction, P is the number of rough turns, Q is the feed rate of each rough turn, X is the radial cutting depth, Z is the axial cutting depth, and F is the feed rate.
Youdaoplaceholder0 G74 : axial turning compound cycle. The specific format is G74 R P Q X Z F, where R represents the tool withdrawal amount in the Z-axis direction, P represents the number of rough turns, Q represents the feed rate of each rough turn, and F represents the feed rate.
Youdaoplaceholder0 G75 : rough machining compound cycle.
Youdaoplaceholder0 G76 : finishing compound cycle.
Youdaoplaceholder0 G77 : combined turning compound cycle.
Youdaoplaceholder0 G78 : tank turning compound cycle.
Youdaoplaceholder0 G79 : thread turning compound cycle.
Other commonly used G-code instructions
Youdaoplaceholder0 G00 : Quick positioning, no cutting.
Youdaoplaceholder0 G01 : linear interpolation machining.
Youdaoplaceholder0 G02 : circular interpolation, clockwise direction.
Youdaoplaceholder0 G03 : circular interpolation machining, counterclockwise direction.
Youdaoplaceholder0 G20 : set the unit of workpiece size to inches.
Youdaoplaceholder0 G21 : set the unit of workpiece size to millimeters.
Youdaoplaceholder0 G28 : return to zero operation.
Youdaoplaceholder0 G40 : cancel tool radius compensation.
Youdaoplaceholder0 G41 : Enable compensation on the left side of the tool radius.
Youdaoplaceholder0 G42 : Enable compensation to the right of the tool radius.
Youdaoplaceholder0 G54 : select the workpiece coordinate system.
Youdaoplaceholder0 G80 : cancel cycle processing.
Youdaoplaceholder0 G90 : absolute coordinate mode.
Youdaoplaceholder0 G91 : incremental coordinate mode.
"M code instruction"
Youdaoplaceholder0 M00 : the program stops.
Youdaoplaceholder0 M01 : Selective program stop.
Youdaoplaceholder0 M02 : the program ends.
Youdaoplaceholder0 M03 : the main shaft rotates forward.
Youdaoplaceholder0 M04 : spindle reversal.
Youdaoplaceholder0 M05 : spindle stops.
Youdaoplaceholder0 M06 : tool exchange.
Youdaoplaceholder0 M08 : coolant boiling.
Youdaoplaceholder0 M09 : coolant off.
Youdaoplaceholder0 M30 : the program ends and returns to the program header.
The selection of these instructions depends on the specific processing requirements. In practical applications, it is necessary to select appropriate instructions for programming based on specific processing tasks, machine tool models, control systems and other factors. At the same time, it is also necessary to pay attention to the correct use of instructions and the reasonable setting of parameters to ensure processing quality and efficiency.
In addition, for different brands and models of CNC machine tools, the compound instruction codes for turning and milling may vary. Therefore, in actual operation, it is necessary to refer to the operation manual and programming guide of the machine tool to obtain accurate instruction codes and programming methods.
Are you interested in learning the detailed usage of a specific instruction, or would you like to discuss some practical application cases of milling compound processing?
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