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In order to correct tool position deviation and ensure machining accuracy during the operation of CNC lathes, we usually use offset parameters to achieve it. However, sometimes due to some reasons,

the offset parameters may deviate or be incorrect, which seriously affects the machining accuracy. At this time, we need to correct the offset parameters. Today, we will mainly explain the

precautions for correcting offset parameters in CNC lathes.
Principle of Determination (JB3052-82) 1. Principle of relative stillness of the tool and motion of the workpiece: In this way,

programmers can determine the machining process based on the part drawing without knowing whether the tool is moving closer to the workpiece or the workpiece is moving closer to the tool. 2.

Principle of standard coordinate system: The machine coordinate system determines the magnitude and direction of motion on the machine tool to complete a series of tasks. In CNC machine tools,

offset mainly includes tool offset and origin offset. Tool offset is actually tool compensation. Origin offset refers to offsetting the origin of the workpiece in a certain direction, so that the

tool can no longer be aligned after replacing the workpiece. The origin bias ranges from G54 to G59. Each axis of a CNC machine tool has a starting point, which is the 0 point. For example, X=100

and Y=25, these two coordinates are the current position of the tool (or machining point). So, where does this position start from? It is calculated from X=0 and Y=0, and it is also the starting

point of the two axes, namely point 0. When each axis is cleared to zero, the tool cannot return to the starting point, which is called zero offset. In a closed-loop system.
See if you are changing

the tool or if the size is not in place. If you are changing the tool, enter it in the offset. If the tool is worn out by 01mm, then adjust the wear. Preparation function word G is an instruction

that enables a CNC machine tool to establish a certain machining method, such as interpolation, tool compensation, fixed cycle, etc. The G function word consists of the address symbol G and its two

digits, with a total of 100 functions from G00 to G99. The JB3208-83 standard specifies the following table: Code Function Scope Function Code Function Scope Function. This is caused by you

changing the parameters. Originally, the decimal point with 3 digits referred to metric units, which were measured in millimeters. Now it has been changed to 4 digits, which means it has been

converted to imperial units, which is measured in inches. You can modify the parameters and check the FANUC parameter information for details. Tool offset refers to not setting the zero point of

the tool. For example, setting the tool offset for tool 01 in 10x means adjusting the tool to the appropriate position by typing 'xoyozo'. The zero offset value is an offset set between the machine

coordinate system and the workpiece coordinate system, used to compensate for the positional deviation between the actual zero point of the machine tool and the design origin of the workpiece. By

selecting the soft keys' Parameters' and 'Zero Offset', enter the offset amount on the screen to complete the setting.
The above are the precautions for correcting bias parameters of CNC lathes. We

hope that the above explanation can be helpful for everyone when using CNC lathes in the future.