Slant Bed CNC Lathe

The two guide rails of flat bed CNC lathe are parallel to the plane of the ground. The plane of the two guide rails of the slant bed CNC lathe intersects with the plane of the ground to form a slanting plane with angles of 30°, 45°, 60° and 75°.
From the side of the machine, the flat bed CNC lathe bed is square, and the slant bed CNC lathe bed is a right-angle triangle. Obviously, with the same width of the guide rail, the x-direction travel of a slant bed is longer than that of flat bed. Therefore, the benefit to the slant bed lathe is that more tool alignments can be arranged. The cross-sectional area of the slant bed CNC lathe is larger than that of flat bed with the same work envelope, i.e., it has stronger mechanical resistance to bending and torsion. The cutting force is basically the same as the direction of gravity of the workpiece, so the spindle is running more smoothly and it is not easy to cause turning vibration. While turning with flat bed CNC lathe, the cutting force generated by the tool and the workpiece is 90° with the gravity of the workpiece, which is easier to cause vibration.
The linear guideway & high-precision ball screw contributes to the accuracy of the CNC slant bed lathe. although the transmission gap between the screw and the nut is very small, there is a certain clearance. When the screw moves in the reverse direction, it will inevitably produce reverse clearance which impaired the positioning repeatability, thus affecting the machining accuracy. The layout of the slant bed CNC lathe can directly affect the clearance of the X ball screw, and gravity acts directly on the axial direction of the screw so that the reverse clearance of the transmission is almost eliminated.
Conversely, the x-directional screw of the flat bed CNC lathe is not affected by the axial gravity, and the clearance cannot be eliminated directly. This is the inherent advantage brought by the design of slant bed CNC lathes. The slant bed CNC lathe is benefit from gravity, so it is convenient for the chip removal; at the same time, it comes with a protection cover, which can avoid the accumulation of chips on the screw and guideway. The flat bed structure required extra labor for the chip removal. Thanks to a capacious work envelope, the feature rich slant bed CNC lathe is capable of outfitting the various tool arrangements, like the possibility of side live tooling on the X-axis. Due to the easy chip removal ability, it provides a lot of possibilities for automatic solutions like the bar feeder, gantry loading device, or robotic arms.