How to choose the spring and the elastic retainer?

Time:2022-11-03

　　How to choose the spring and the elastic retainer?

　　Circlip spring, also called retaining ring or buckle, belongs to a kind of hardware fasteners. There are many types of them. They are mainly installed in the shaft groove or hole groove of the machine and equipment. Many people often confuse the spring with the elastic retainer. So what is the difference between the circlip and the elastic retainer?

　　Simply put, it prevents the axial movement of the parts on the shaft or hole.

　　Circlip spring is an important part, which belongs to a small equipment component. The specifications are generally very small. The shape of the circlip spring is usually round, but there is a notch at one end. The spring is set on the equipment that needs to be fixed, and then the gap is locked with screws, so that the equipment can maintain stability, which is the role of the spring. In CNC lathes, the spindle clip spring is commonly used as the clamping fixture of the parts. Because of its good structure and accuracy, the spindle clip spring is widely used in the manufacturing field. However, in the specific production process, the clamping spring lacks the axial positioning device, so it can only rely on the end face of the clamping spring and the specific tool for positioning. The specific operation is to move the tool to a fixed position set by the program, open the machine door to loosen the clamping spring, and then pull the end face of the parts to be processed to the tool surface to fit, and then clamp the spindle clamping spring to close the machine door.

　　The current positioning method has complex operation and low positioning accuracy, which can not meet the accuracy of parts, large size difference of batch parts, and can not meet the fast switching and processing of various kinds of parts in the production process.

　　Due to the addition of process holes, the spring is more convenient to disassemble and assemble, but the protrusion at the installation process holes occupies a larger space, and both hole and shaft spring occupy a large space.

　　Compared with the circlip spring, the elastic retaining ring is multi-layer structure, commonly used is 2 and 3 layers, no protrusion part, the elastic retaining ring is very similar to the key chain, the difference is that the end of the retaining ring wire for holding the cutting Angle, assembly will not interfere with other adjacent parts, so it is more convenient to use. Now for the occasion that you do not need to disassemble often, the advantage of elastic retaining ring is more obvious. In addition, the elastic retaining ring of smalley is wound by flat wire. After heat treatment and surface treatment, it has excellent elasticity and toughness.

　　In a word: the elastic retainer section is equal, the force is uniform, reduce the phenomenon of stress concentration. The inner and outer edges are smooth and complete, there is no ear interference fitting piece, the inner and outer diameter has no burr edge, convenient disassembly and assembly, can meet different needs through the increase or decrease of the number of layers, there is no need to make mold, through the change of material thickness, can be easily made into light load type, medium load type and heavy load type. Short production cycle, a wide range of optional materials, spring steel, stainless steel, copper and other metal materials can be easily produced.