This slant-guide CNC lathe adopts an integrated electromechanical design, with the bed and feet as a single unit. The bed is tilted backward at 30 degrees, resulting in a compact structure, high rigidity, good vibration resistance, and convenient chip removal. The machine tool spindle uses a spindle unit with a frequency converter or servo motor, achieving high spindle speed and stepless speed regulation. The guideways use imported high-precision linear rolling guideways, driven by an AC servo motor, ensuring high positioning accuracy and fast movement speed. The guideways employ a centralized automatic lubrication device and fully enclosed protection, ensuring thorough lubrication, safety, and a long service life.
This slant-guide CNC lathe can be equipped with multiple sets of tool posts, multi-station electric tool posts, or hydraulic servo tool posts. The spindle workpiece clamping can be achieved using elastic collets or power chucks, making workpiece clamping convenient and quick.
The slide drive screws of this slant-guide CNC lathe are all high-precision ball screws. The transmission clearance between the screw and the nut is very small, but it's not that there is no clearance. As long as there is clearance, when the screw moves in one direction and then reverses, backlash will inevitably occur. Backlash will affect machining accuracy. However, this type of machine tool with a 45-degree bed has gravity acting directly on the axial direction of the screw, so the backlash during transmission is almost zero. If you still don't understand, you can take an ordinary nut and screw, stand it vertically upwards, turn the screw, and then turn it back. You will understand that the nut is always pressing the screw to one side, so there is no backlash. If you lay the nut and screw flat, this effect will not occur.
This type of slant-guide CNC lathe has good rigidity, making it less prone to machine vibration during cutting. The cutting tool of this type of machine cuts at an angle above the workpiece, and the cutting force is consistent with the gravity generated by the spindle and the workpiece. Therefore, the spindle runs relatively smoothly and is less prone to cutting vibration. In contrast, when cutting on a conventional CNC lathe, the cutting force generated by the tool and the workpiece is upward, which is inconsistent with the gravity generated by the spindle and the workpiece, making it more prone to vibration.
Installation and Use of Slant Guide CNC Lathe
1. To ensure the working accuracy of the machine tool, adjust the anchor bolts or vibration damping feet during installation to ensure the machine tool is level and to prevent the guide rails from twisting.
2. After installation and commissioning are completed, the first step is to check whether the rotating parts are flexible and whether the electrical circuits are reliable. Then, a test run should be conducted, which should last less than 2 hours. Only after confirming that everything is normal can trial processing begin.
3. Spindle bearings will develop clearance after a period of machine tool use. Users can adjust this clearance appropriately according to the operating speed. If the clearance is too small, it will easily cause the bearing to overheat; if the clearance is too large, it will affect the workpiece's accuracy and surface roughness. The clearance can be adjusted by loosening or loosening the locking nuts of the front and rear spindle bearings. It is best to keep the bearing clearance at 0.006mm.
4. Both the large and small slides of the machine tool are equipped with stoppers. After a period of use, the gap between the large and small slides can be adjusted by adjusting the stoppers. The adjustment should be made so that the machine operates smoothly without affecting the machining accuracy.
5. All sliding parts of the machine tool must be adequately lubricated. Mechanical oil should be added 2-4 times per shift (8 hours). Bearing lubricant should be replaced every 300-600 hours.
6. Regular maintenance and cleaning of the machine tools should be performed.
7. Before using the machine tool, carefully read the machine tool instruction manual.
