Classification of Daily CNC Lathe Processing

(1) General CNC lathe processing. This type of CNC lathe processing, like traditional universal lathe processing, has mechanical processing methods such as CNC turning, milling, boring, drilling, and grinding. The process possibilities of this type of CNC lathe processing are similar to universal machine tools, but the difference is that it can process complex shaped parts.

(2) CNC CNC lathe processing. This type of CNC lathe processing has developed on the basis of general CNC lathe processing. It is a CNC lathe with an automatic tool change device (also known as a multi process CNC lathe or boring and milling machining center, commonly referred to as a machining center), which is composed of a tool library (capable of accommodating more than 10-100 cutting tools) and an automatic tool change device installed on a general CNC lathe. This further promotes the development of CNC lathe processing towards automation and efficiency.

(3) Multi coordinate CNC lathe machining. Some complex shaped parts cannot be processed using a three coordinate CNC lathe, such as the machining of propellers and aircraft curved parts, which require the synthesis of more than three coordinates to produce the desired shape. Thus, multi coordinate CNC lathe machining emerged, characterized by a large number of axes controlled by CNC devices and a complex lathe structure. The number of coordinate axes usually depends on the mechanical processing requirements of the processed parts.

2. Classification based on the motion trajectory of CNC lathes

(1) Point control CNC lathe machining. The CNC device processed by this type of CNC lathe can only control the precise movement of the moving parts of the lathe from one position to another, that is, only controlling the coordinate value of the end point of the stroke, without any cutting during the movement process. As for the movement speed and route between the two intersection points, it depends on the productivity. In order to achieve the highest possible productivity on the basis of precise positioning, the movement between two related points is first quickly moved to a new position, and then slowed down by 1-3 levels to slowly approach the positioning point to ensure its positioning accuracy.

CNC lathe

(2) Point position linear control CNC lathe machining. When processing this type of CNC lathe, it is not only necessary to control the position between two related points, but also to control the movement speed and route between the two related points. The route is generally composed of straight segments parallel to each axis. The difference between it and point controlled CNC lathe machining is that when the moving parts of the lathe move, cutting can be carried out in the direction of a coordinate axis (generally cutting can be done along a 45 ° oblique line, but not along a straight line with any slope), and its auxiliary functions are more than those of point controlled CNC lathes, such as adding functions such as spindle speed control, cyclic feed processing, and tool selection.

(3) Contour controlled CNC lathe machining. The control device of this type of CNC lathe can continuously control two or more coordinate axes simultaneously. During machining, it is not only necessary to control the starting and ending points, but also to control the speed and position of each point throughout the entire machining process, so that the CNC lathe can process complex shaped parts that meet the requirements of the drawings. Its auxiliary functions are also relatively complete.