The Three "High" in the Production of CNC Milling Machine Shafts

The CNC milling machine has the characteristics of high precision, high efficiency and high flexibility. The use of the CNC milling machine can improve the efficiency of shaft processing and create more value. The emergence of the CNC milling machine makes the enterprise get rid of the backward shaft processing technology and processing technology. The processing technology of CNC milling machine is similar to that of ordinary lathes, but because the CNC milling machine is a one-time clamping, the positioning datum of the two ends of the shaft is continuously and automatically processed, which provides a standard workpiece that is more suitable for the actual processing for the next process. Firstly, it saves the processing time of the centering process of milling the end face, and secondly, it saves the waste of man-hours caused by the inconsistent clamping datum in the following processes, which is especially for small batch and multi-batch processing of shaft parts and large-batch single-batch processing of shaft parts. So what are three "high" of CNC milling machine shafts?

1. High processing accuracy of CNC milling machine

The machining accuracy of the CNC milling machine is generally up to 0.05. Because the CNC milling machine is controlled in the form of digital signals, every time the CNC device outputs a pulse signal, the moving parts of the machine tool move a pulse equivalent (usually 0.001MM), and The average error of the backlash of the machine tool's feed drive chain and the screw pitch can be compensated by the numerical control device. Therefore, the machine tool has a relatively high positioning accuracy.

2. High productivity of CNC milling machine

The CNC milling machine adopts a two-way hydraulic self-centering fixture, which has good versatility and can effectively reduce the processing time and auxiliary time of the parts.

(1) It is convenient to fine-tune the deformation accuracy of the fixture after three to five years of use

(2) It is convenient to change the clamping of different types of workpiece diameters, and the adjustment is convenient to save man-hours

(3) The cost of using these parts is low, and the replacement cost is low. The range of sound velocity and feed rate of the spindle of the CNC machine tool is large, allowing the machine tool to perform powerful cutting with a large amount of cutting. CNC machine tools are entering the era of high-speed machining. The rapid movement and positioning of moving parts of CNC machine tools and high-speed cutting have greatly improved productivity

(4) It can be used in conjunction with the tool magazine of the machining center to realize the continuous processing of multiple procedures on one machine tool, which reduces the turnaround time between procedures for semi-finished products and improves productivity

3. High flexibility of CNC milling machine

Machining parts on a CNC milling machine mainly depends on the processing program. It is different from ordinary machine tools. It does not need to be manufactured, many molds and fixtures are replaced, and the machine tool does not need to be re-adjusted frequently. Therefore, the CNC milling machine is suitable for the occasions where the processed parts are frequently replaced, that is, it is suitable for the production of single-piece, small-batch products and the development of new products, thereby shortening the production preparation cycle and saving a lot of process equipment costs.