How to process butterfly spring?

Lead: We are no strangers to spring, and we sometimes use it in our lives. Suppose a small ballpoint pen also uses springs, switches of some electrical appliances, or shock absorption systems of bicycles and cars. You need a spring. But the spring is used in these things, and we may just be familiar with its shape and purpose and other simple things. But is it strange to know other aspects of it? So today, I will show you a different kind of spring. This is a butterfly spring, so let's take a look at Bian Xiao.

What kinds are there in butterfly spring?

Without really understanding the butterfly spring, first of all, I want to tell you that the butterfly spring is only one type of spring, and it can be divided into many kinds. Disc springs can be divided into three types according to the different cross-sectional shapes: ordinary disc springs, disc springs with radial grooves and trapezoidal section disc springs.

1. Ordinary disc springs are divided into two types: supported surface and unsupported surface;

2. The disc spring with radial groove is based on the ordinary disc spring, and several evenly distributed grooves are opened along the radial direction, which can be opened from the inner hole to the outer circle or from the outer circle to the inner control direction;

3. Trapezoidal section disc springs can be divided into two types: the inner edge thickness is greater than foreign aid and the inner edge thickness is less than the outer circle.

Processing requirements of butterfly spring

Today is mainly about its processing, so let's briefly talk about its processing requirements. According to the technical requirements of belleville springs, the deformation characteristics of materials should be fully considered in the formulation of each process, and a large number of targeted process tests should be carried out for blanking, processing, pressing, heat treatment, grinding and polishing, setting and other processes, so as to master the parameters and deformation laws of each process and make the product quality meet the design requirements.

Processing steps of butterfly spring

Disc springs are mostly made of cold-rolled or hot-rolled strip steel, plate or forged blank (forging ratio is not less than 3), and their materials are usually spring steels such as 60S2MA and 50CVA, and those with a thickness less than 1. 1 can also be made of high carbon steel. Special materials can also be customized for special requirements such as rust prevention, corrosion prevention, antimagnetic or heat resistance. Manufacturing process: punching ring → grinding both sides → turning inner and outer diameters side by side → cold forming → high temperature normalizing → pressing → shot blasting → quenching → tempering → shot blasting → pressing → surface treatment.

Are the processed products of high quality?

How to judge whether the spring meets the requirements of high quality after processing? 1. Ordinary machining: when stamping, the impact surface of the disc spring will produce longitudinal slots, and when loading, the outer edge of the disc spring will produce a series of tangential tensile stresses; Precision machining: the longitudinal grooves on the precision machined surface are completely removed, and the turning direction is consistent with the main drawing direction, without the risk of cracking. Fine stamping: after stamping, the longitudinal slots intersect with the tangential stretching direction, resulting in notch effect. Some longitudinal grooves are removed in the rolling process, and the surface is smooth. Ordinary drilling: the longitudinal slot cuts the tangential force direction transversely, and the incision effect is great. Because of its short service life, it is not recommended for dynamic occasions.

Well, that's our introduction to butterfly spring today. Knowing this, I believe everyone can get the high-quality finished product butterfly spring in the first time. What Xiang Xiao tells you here is that if you buy butterfly spring, you'd better choose products with good quality, so that you can use them safely and without spending too much energy to deal with disputes caused by quality problems or other safety problems, which can save a lot of time and cost. In addition, you must remember to be clear about your working conditions when buying. Many manufacturers will generally choose the product material you need most for you.