Basic code when operating CNC machine

CNC precision machining machine is a very useful invention and greatly supports the mechanical processing industry. With CNC machines, we can ensure the time as well as the quality of the processing product in the most accurate way. But to be able to understand cnc machine we need to know the most basic things of the machine already.You can refer to the article below to get a better overview of CNC machines.

Read more: What is a CNC machine? Principles and types of CNC machines

The use of CNC machines requires engineers and workers to learn and train to be able to master most of the operations on CNC machines. One of the most important things to operate a CNC machine is that the code of the machine, like a function key but here we have to calculate how each line of misaligned code must fit together during the product finishing process.

CNC code is very important
CNC code is very important

So what functions do these misaligned codes have and how do they be used?

Code is very important in the mechanical machining process, because when processing the details with a CNC machine we need to enter the code into a chain, the statements will be written together to form a manual that controls the instrument moving in the form of programming. These codes are all commands that are carefully identified and calculated by machining engineers.

Entering a wrong command line or changing the structure of the command line will also cause the operation of the CNC machining machine to become flawed and cause errors to the running program or product details. There are two common types of code: G and M in CNC, so let’s take a look at those two.

Code G in CNC

  • Each misaligned line of a CNC program with the character starting as G is called a G-code or otherwise known as G-CODE.
  • Each G code has a function that controls the tool movement activities of cnc machines.
  • You can refer to the G codes for fanuc operating system below:

List of FANUC System G-code (CNC Lathe)

G code

Depict

G00

Fast knife positioning

G01

Interpolation in a straight line

G02

Interpolation in a circular arc, clockwise.

G03

Interpolation in a circular arc, counterclockwise.

G04

Pause the program from time to time.

G09

Stop correctly

G10

Set the OFF-SET value.

G20

“Inch” program unit.

G21

Program unit “mm”.

G22

Close the knife journey limit.

G23

Turn off the extreme knife journey.

G27

Check the root point.

G28

Go back to the original point

G32

Machining lace in a straight line.

G40

Offset the knife-nosed radius.

G41

Offset the radius of the knife nose.

G42

Make up for the knife-nosed radius.

G70

Lathe cycle

G71

Rough lathe along the shaft

G72

Rough lathe glass direction

G73

Contour-line programming

G74

Z-axis drilling

G75

Conveniently grooved, cut off

G76

Lace Lathe

G92

lace lace cycle

G94

Glass Directional Cutting Cycle

G96

Constant machining speed control

G97

Remove the constant machining speed control

 

Fanuc System G-code list (CNC Milling Machine)

G code

Depict

G00

Fast knife positioning

G01

Interpolate in a straight line.

G02

Arc interpolation is round with clockwise.

G03

Clockwise round arc interpolation

G04

Pause the program from time to time.

G17

Select the machining plane as XY

G18

Select the machining plane as XZ

G19

Select the machining plane as YZ

G28

Go back to the original point.

G30

Return to the 2nd, 3,4th root point.

G40

Offset the knife-nosed radius.

G41

Offset the radius of the knife nose.

G42

Make up for the knife-nosed radius

G43

Compensation of positive knives by knife length

G44

Clearing negative knives by knife length

G49

Offset knife length

G54

Select the base of the 1st machining coordinates

G55

Select the base of the 2nd machining coordinates

G56

Select the base of the 3rd machining coordinates

G57

Select the base of the 4th machining coordinates

G58

Select the base of the 5th machining coordinates

G59

Select the base of the 6th machining coordinates

G68

Coordinate rotation command

G69

Coordinate rotation end command

G73

Drilling cracking cheese

G74

Left lace taro

G76

Doa Tinh Hole

G80

Cancel the hole drilling cycle

G81

Bait drilling

G82

Drilling has a stop time at the bottom of the hole

G83

Deep drilling

G84

Right lace taro

G85

Doa the hole and back the knife out at the speed of the knife.

G86

Doa the hole and back the knife out that the spindle stops spinning

G87

Doa the back of the hole

G88

Doa backed up the knife with her hands.

G89

Doa has time to stop at the bottom of the hole

G90

Absolute programming

G91

Relative programming

G92

Set the coordinate angle from the instrument’s current location

G98

Back the knife to the starting height, in the hole machining cycles

G99

Back the knife to a safe height, in hole machining cycles

Code M in CNC

  • Just like the G-code, the code written with the initials M is called M-CODE.
  • Each M code has an auxiliary function for the G code to control the operation of the CNC machine.
  • The M code is also found quite a lot, you can refer to some M codes below

List of FANUC System M-code (CNC Lathe)

M code

Depict

M00

Stop the program unconditionally.

M01

Stop the conditional program.

M02

Stop the program.

M03

The axis rotates clockwise.

M04

The pivot is counterclockwise.

M05

Stop spindle

M08

Turn on the cold watering solution.

M09

Turn off the cold watering solution.

M30

End the program.

M41

Spindle rotates in low speed zone

M42

The spindle rotates in the high-speed zone.

M98

Call the sub-program.

M99

End of the program.

 

Fanuc System M-code list (CNC Milling Machine)

M code

Depict

M00

Stop the program unconditionally.

M01

Stop the conditional program.

M02

Stop the program.

M03

The axis rotates clockwise.

M04

The pivot is counterclockwise.

M05

Stop spindle

M06

Change the knife.

M08

Turn on the cold watering solution.

M09

Turn off the cold watering solution.

M30

End the program.

M41

The spindle rotates in the low speed zone.

M42

The spindle rotates in the high-speed zone.

M98

Call the sub-program.

M99

End of the program.

The conclusion

Through the above information, we can see that the code in mechanical processing is very important, affecting a lot of the detailed processing process. Thereby, we can understand the generalization of CNC machining codes, especially understanding the functions and codes of the two types of G-CODE and M-CODE.

VCC Molds, with a team of engineers with many years of experience in the mechanical industry, we specialize in cnc precision machining as well as precision mold design and machining. Any questions or advice please contact us immediately via Hotline / Zalo: 0934 683 166 or Email: contact@vcc-group.vn or leave a message here. We will contact you as soon as possible.


Vietnam Capacity Precision Mold Joint Stock Company

Address: Lot B2-3-3b, Nam Thang Long Industrial Park, Thu Phuong, Bac Tu Liem, Bac Tu Liem, Hanoi

Phone: (+84)24 6687 8283

Email: contact@vcc-group.vn

Hotline/Zalo: 0934683166

Website: www.vcc-mold.vn

Google map: https://goo.gl/maps/u6TrPvLWSb3bXAwQ6

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