External circulation: screw, nut, steel ball, elbow and fixed block. The steel ball is in the middle of the screw and the nut. The circulation of the steel ball is linked by the elbow, so that the inner circulation is performed on the nut. The inner circulation is a commonly used one. the way. It consists of a screw, a nut, a steel ball and a return cover. The steel ball is circulated in a single cycle, and the return cover spans the two adjacent beads of the link to form a single Dongguan carving machine Dior CNC. Pcd Grinding Wheel,Cup Grinding Wheel,Diamond Cutting Wheels,Pcd Diamond Cup Wheels DANYANG HANFENG TOOLS CO.,LTD. , https://www.mahanfengdiatools.com
1. The role of the lead screw The lead screw is a mechanical component composed of a screw shaft and a screw and a nut with a steel ball as a rolling element. The lead screw is used in many machines, not only on the carving machine, As long as the machine needs to turn the movement of the motor, it needs to use the screw. The function of the screw is to exchange the linear motion and the rotary motion, and it has the characteristics of high precision, reversibility and high efficiency.
2, the classification of the lead screw The ball is divided into three types of screw by the movement of the ball are external cycle screw, inner circulation screw, end cap type screw three types of external circulation: screw, nut, steel ball, The elbow and the fixed block are composed, and the steel ball is interposed between the screw and the nut. The circulation of the steel ball is linked by the elbow, so that the inner circulation is repeated on the nut: the inner circulation is a commonly used method. It consists of a screw, a nut, a steel ball and a return cover. The steel ball circulates in a single circle, and the return cover spans the two adjacent beads of the link to form a single closed return path end cap type: similar to the outer loop in the big question, The difference is that the nut is processed to be perforated as a steel ball backflow. Therefore, under the same dynamic load, the nut length is traditionally adjusted to be short.
The lead screw is divided into two types of lead screws by its precision: grinding grade screw and rolling screw grinding grade screw, also called high precision screw, have high smooth and high precision positioning, and have low torque, high rigidity and ultra quiet. Can predict the characteristics of long life, generally used for machines with higher precision requirements, such as glass carving machine
The wire bar is cheap and has the characteristics of high rigidity and long life. It is generally used in the case of low precision requirements, such as acrylic engraving machine, processing acrylic and other inaccurate conditions.
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