A lead screw is a mechanical transmission device used to convert rotary motion into linear motion. It is usually used in applications where precise position control is required, but position is not required. Its working principle is based on the combination of screw and structure, unlike ball screws which use balls to reduce difficulty. The following is a detailed introduction to the feeding screw: 1. Structure: The feeding screw consists of the following main components: Screw Shaft: The screw is a slender and precise rod with a spiral thread profile on its surface. This helical thread provides rotational motion. Bolt (nut): The bolt is the moving part of the feed screw, usually a part that matches the thread of the screw. Bolts are attached to parts that require linear movement. 2. Working principle: The working principle of the feeding screw is based on the interlocking of the screw thread and the bolt. When you twist the screw, the bolts move along the bolts of the screw. Due to the pitch of the thread, each rotation causes a certain impact. This process achieves linear motion. 3. Advantages and applications: The feeding screw has the following advantages and applications: Simple design: The feed screw has a simpler structure than the ball screw and is usually more economical. It is suitable for applications where this is not required, such as manual operations or less demanding automated systems. Accuracy: Although not as accurate as a ball screw, a feed screw can still provide higher positioning accuracy and is suitable for some applications that require basic position control. Load carrying capacity: The feed screw is usually able to withstand a certain load and is suitable for some medium load applications. Scope of application: Feeding screws are widely used in various fields, including manually operated mechanical devices, lifting systems, mixers, medical equipment, small automation equipment, etc. 4. Maintenance: Feed screws generally have lower requirements than ball screws. However, it still requires regular lubrication to maintain and reduce friction and wear to ensure proper operation. Overall, the feed screw is an economical and practical linear motion control device suitable for applications that do not require precise control, but require basic position adjustment and linear motion.