the three-line machining center is also called "line rail machining center". it usually refers to the machining center of the linear guide rail used in the xyz three axes of the cnc machining center. we usually call such a machining center a three-line machining center. machining centers, generally buy machining centers using three-track rails, but there are also companies that require two-line one-hard machining centers and three-hard rail machining centers, but most of them use three-track rails. today, we will briefly introduce what is three-line machining center, as well as some of its advantages and so on.
usually machining centers are divided into hard rails and linear rails. the two are basically the gaps on the rails. we have previously introduced an introduction to two-line and one-hard machining centers. there is a detailed introduction to what is a hard rail and what is a linear rail. here what we want to understand are some of the benefits of using a three-wire machining center. the characteristic of the three-line machining center is that the displacement speed is fast. at present, the fastest one can reach hundreds of meters per second. such a machining center coupled with the high speed of the main shaft is called a high-speed machining center. this is unmatched by a hard rail machining center. moreover, the line rail machining center is not easy to wear, and the machining accuracy and machining finish of the processed products are also higher than that of the hard rail machining center. therefore, friends who have high demand for products can only choose three-line machining centers.
machine precision and stability:
1. the bed adopts high-density cast iron structure design, strong rigidity, ultra-wide base, widened and long saddle, to ensure the heavy load capacity during processing;
2. the "her"-shaped column is designed with strong structure and high strength. the total weight of the machine tool is 6-13.5 tons, with good stability, high-speed displacement without vibration, ensuring high-speed cutting machining accuracy, rapid feed reaching 48m/min, z-axis using brake-type servo motor, with no counterweight design, improves z-axis drive performance, and achieves surface accuracy when performing 3d machining;
3. all three axes adopt taiwan shangyin/yintai screw c3 grade, ball linear guide, nut pair ball screw, large contact area and can bear large load;
4. the motor end and tail end bearings of the ball screw are all imported p4 grade combination special high-speed bearings. all three-axis ball screws are pre-stretched, with stable performance and improved axial power transmission efficiency. it has high rigidity, low noise, low friction characteristics, high machining accuracy;
5. the three-axis adopts high-precision c3-level ball screws and uses precision ball bearings for pre-tensioning to reduce the precision error during thermal expansion and prevent damage to the precision components of the system at high temperatures. the three-axis ball screws are equipped with support mechanisms to improve axial power transmission efficiency, displacement 48 m/min, saving processing time.
