Users should pay attention to what aspects of small CNC lathe turning
issuing time ：2019-12-09
Digital program control lathe is generally called CNC lathe for short. It is a high-performance automatic lathe controlled by CNC equipment or computer. It summarizes the use of automatic control technology, computer technology, fine measurement technology, hydraulic and pneumatic technology, and New technologies are used in structure and other aspects. CNC lathes are all kinds of operations required for machining, such as variable speed, loose clamping of workpieces, feeding, retracting, driving and parking, automatic supply of cooling fluid, etc., and the displacement of the tool relative to the workpiece.
CNC lathes have spindle components, some have only one spindle component and more than one. CNC lathe spindle refers to the axis on the machine tool, which is used to drive the workpiece or tool to rotate. It is a hollow stepped shaft. The hollow shaft of the CNC lathe takes up a relatively large space, but the weight can be reduced. According to the mechanical analysis of the material, when torque is transmitted through the shaft, the effect of transmitting effective torque is higher because the outside is viewed from a radial section. When the CNC lathe shaft needs to transmit large torque, a thicker shaft diameter is required. Since the effect of transmitting torque in the axial portion is small, a hollow is usually used to reduce the weight of the rotating shaft. CNC lathe spindle components are usually composed of spindle, bearings and transmission components (gears or pulleys).
The machining process of small CNC lathes is similar to that of ordinary lathes, but because CNC lathes are clamped at one time, all turning operations are completed continuously and actively. Therefore, the following aspects should be paid attention to. Reasonable selection of cutting amount: For high-power metal cutting, the processed materials, cutting things, and cutting conditions are the three major factors. These decisions determine the processing time, tool life and processing quality. The economic and useful processing method must be a reasonable selection of cutting conditions. The three elements of cutting conditions: cutting speed, feed and cutting depth directly cause tool damage. As cutting speeds increase, the tip temperature rises and mechanical, chemical, and thermal wear occurs. When cutting speed is increased by 20%, tool life is reduced by 1/2. The feed conditions and the wear behind the tool occur within a very small range. However, the feed rate is large, the cutting temperature rises, and the back wear is large. It has less influence on the tool than the cutting speed. The effect of cutting depth on the tool Although the cutting speed and feed are not large, when the cutting depth is small, the hardened layer of the material being cut will also affect the tool life.
The user should choose the cutting speed to be used according to the material being processed, hardness, cutting conditions, material variety, feed amount, cutting depth, etc. The selection of suitable processing conditions is based on these factors. Selecting a high-quality CNC lathe custom processing factory, regular and stable wear and tear reaches the life is the ideal condition. However, in actual operation, the selection of tool life is related to tool wear, changed machining dimensions, appearance quality, cutting noise, and processing heat.