What are the precautions for the daily operation of CNC machining?

CNC machining refers to the process of machining parts on CNC machine tools. CNC machine tools are machine tools controlled by a computer. The computer used to control the machine tools, whether it is a special computer or a general-purpose computer, is collectively called a CNC system. Before CNC parts are processed, the content of the process flow must be clearly seen, the parts to be processed, the shape, and the dimensions of the drawings must be clearly known, and the processing content of the next process must be known.


Before processing the raw material, measure whether the size of the blank meets the requirements of the drawing, and carefully check whether its placement is consistent with the programmed instructions.


The self-check should be carried out in time after the rough machining of the processing technology is completed, so that the data with errors can be adjusted in time.


The content of the self-inspection is mainly the position and size of the processing part.


(1) Whether there is any looseness during the processing of mechanical parts;


(2) Whether the machining process of the parts is correct to touch the starting point;


(3) Whether the size from the machining position of the CNC part to the reference edge (reference point) meets the requirements of the drawing;


(4) The size of the positions between the cnc processing parts. After checking the position and size, the roughing shape ruler should be measured (except for the arc).


After the rough machining is confirmed, the parts will be finished. Perform self-inspection on the shape and size of the drawing parts before finishing: check the basic length and width dimensions of the processed parts of the vertical plane; measure the basic point size marked on the drawing for the processed parts of the inclined plane. After completing the self-inspection of the parts and confirming that it is in compliance with the drawings and process requirements, the workpiece can be removed and sent to the inspector for special inspection. In the case of small batch processing of precision cnc parts, the first piece is required to be processed in batches after being qualified.


CNC machining is an effective way to solve the problems of variable parts, small batches, complex shapes, and high precision, and to achieve high-efficiency and automated processing. The machining center was originally developed from CNC numerical control milling machine processing.

Post time: Sep-18-2021