CNC lathe programming and operation commonly used instructions
2021-06-08 06:02:25
1. F function
The F function instruction is used to control the cutting feed. There are two ways to use this program.
(1) Feed per revolution
Programming format G95 F~
The number following F indicates the spindle feed per revolution in mm/r.
Example: G95 F0.2 means feed 0.2 mm/r.
(2) Feed per minute
Programming format G94 F~
The number following F is the feed per minute in mm/min.
Example: G94 F100 means the feed rate is 100mm/min.
2. S function
The S function instruction is used to control the spindle speed.
Programming format S~
The number following S represents the spindle speed in r/min. On machines with constant line speed, the S function command has the following effects.
(1) Maximum speed limit
Programming format G50 S~
The number following S represents the highest speed: r/min.
Example: G50 S3000 means the maximum speed limit is 3000r/min.
(2) constant speed control
Programming format G96 S~
The number following S indicates a constant linear velocity: m/min.
Example: G96 S150 means that the cutting point linear speed is controlled at 150 m/min.
(3) Constant speed cancellation
Programming format G97 S~
The number following S indicates the spindle speed after the constant speed control is canceled. If S is not specified, the final value of G96 will be retained.
Example: G97 S3000 means the spindle speed is 3000 r/min after the constant speed control is cancelled.
3. T function
The T function instruction is used to select the tool for machining.
Programming format T~
T usually followed by two digits indicates the selected tool number. However, there are four numbers behind T, the first two are the tool number, the last two are the tool length compensation number, and the tool nose arc radius compensation number.
Example: T0303 indicates that the No. 3 and No. 3 tool length compensation values ​​and the tool nose arc radius compensation value are selected.
T0300 indicates cancel tool compensation.
4. M function
M00: The program is paused. The NC start command (CYCLE START) can be used to keep the program running.
M01: The schedule is paused. It is similar to M00, but M01 can choose whether to use the machine "optional stop button".
M03: The spindle rotates clockwise;
M04: spindle rotates counterclockwise;
M05: spindle rotation stopped;
M08: Coolant on;
M09: Coolant off;
M30: The program stops and the program is reset to the starting position.
The F function instruction is used to control the cutting feed. There are two ways to use this program.
(1) Feed per revolution
Programming format G95 F~
The number following F indicates the spindle feed per revolution in mm/r.
Example: G95 F0.2 means feed 0.2 mm/r.
(2) Feed per minute
Programming format G94 F~
The number following F is the feed per minute in mm/min.
Example: G94 F100 means the feed rate is 100mm/min.
2. S function
The S function instruction is used to control the spindle speed.
Programming format S~
The number following S represents the spindle speed in r/min. On machines with constant line speed, the S function command has the following effects.
(1) Maximum speed limit
Programming format G50 S~
The number following S represents the highest speed: r/min.
Example: G50 S3000 means the maximum speed limit is 3000r/min.
(2) constant speed control
Programming format G96 S~
The number following S indicates a constant linear velocity: m/min.
Example: G96 S150 means that the cutting point linear speed is controlled at 150 m/min.
(3) Constant speed cancellation
Programming format G97 S~
The number following S indicates the spindle speed after the constant speed control is canceled. If S is not specified, the final value of G96 will be retained.
Example: G97 S3000 means the spindle speed is 3000 r/min after the constant speed control is cancelled.
3. T function
The T function instruction is used to select the tool for machining.
Programming format T~
T usually followed by two digits indicates the selected tool number. However, there are four numbers behind T, the first two are the tool number, the last two are the tool length compensation number, and the tool nose arc radius compensation number.
Example: T0303 indicates that the No. 3 and No. 3 tool length compensation values ​​and the tool nose arc radius compensation value are selected.
T0300 indicates cancel tool compensation.
4. M function
M00: The program is paused. The NC start command (CYCLE START) can be used to keep the program running.
M01: The schedule is paused. It is similar to M00, but M01 can choose whether to use the machine "optional stop button".
M03: The spindle rotates clockwise;
M04: spindle rotates counterclockwise;
M05: spindle rotation stopped;
M08: Coolant on;
M09: Coolant off;
M30: The program stops and the program is reset to the starting position.
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