Torsion spring is a kind of mechanical part that works with elasticity. Generally made of spring steel. It is widely used in computer, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles and other industries to control the movement of mechanical parts, mitigate impact or vibration, store energy and measure the force. The main equipment of the production equipment includes: digital control multi-functional computer spring coiling machine, mechanical automatic spring coiling machine, spring grinding machine, heat treatment equipment, large-scale hot coil spring production line, and quality detection instrument.