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Manufacturing technology of cold-formed coil spring machine

When using materials that do not need to be quenched or tempered to make a spring after forming, the process is as follows. , Spiral spring machine: coiling, stress relief annealing, grinding of both ends, (shot blasting), (alignment), (stress relief annealing), standing or pressure treatment, inspection, surface anticorrosion treatment, packaging.
   Spiral tension spring: coiling, stress relief annealing, hook and loop production, (tail trimming), stress relief annealing, standing treatment, inspection, surface anticorrosion treatment, packaging.
    Spiral torsion spring: coiling, stress relief annealing, torsion arm making, tail trimming, stress relief annealing, standing treatment, inspection, surface anticorrosion treatment, packaging.
     The manufacturing processes of the spiral tension and torsion springs described above are all the hook loops or torsion arms at both ends after being wound on an ordinary spring coiling machine. In recent years, many domestic and foreign manufacturers have produced and used computerized forming machines or special forming machines. The shape of the spring body and tail can be completed on the forming machine at one time, eliminating the need for processing hooks or torsion arms. When the spring is made of materials that need to be quenched and tempered after forming, the main difference from the above process is that it needs to be quenched and tempered after forming, and sometimes the spring end processing needs to be normalized. In order to improve production efficiency, a production line is formed for springs that require mass production. Such a production line can not only improve production efficiency and economic benefits, but also ensure product quality. Typical production lines, such as valve spring production line, suspension spring production line, etc.
coil spring machine