Equal-distance volute spiral spring forming machine

Abstract

The invention discloses an equal-distance volute spiral spring forming machine. The equal-distance volute spiral spring forming machine comprises a machine base, a spring winding device and a steel belt pressing device; the spring winding device comprises a panel, a speed reducer and a core shaft fixedly connected with the output end of the speed reducer, the steel belt pressing device is arranged on the machine base, and comprises a power device, a cam, limiting bases, an ejector rod, a pressing rod and a heavy punch, the power device is arranged on one side of the machine base, the cam is fixed to the output end of the power device, the limiting bases are vertically arranged on the two sides of the cam and are used for limiting the rotating stroke of the cam, one end of the ejector rod is fixedly connected with the cam, the other end of the ejector rod is provided with an ejector wheel, the pressing rod is arranged on the upper portion of the ejector wheel, the heavy punch is arranged at one end of the pressing rod, a pressing block for pressing the steel belt is arranged at the other end of the pressing rod, and the portion of the end, with the pressing block, of the pressing rod is fixed to the panel, and is in rotatable connection with the panel. The machine is simple in structure, low in production cost and high in production efficiency, formed equal-distance volute spiral springs are good in shape consistency, the fatigue life is long, and the machine is suitable for large-batch production.

Description

technical field [0001] The invention relates to the technical field of spring forming equipment, in particular to an equidistant scroll spring forming machine with high precision, long service life, high production efficiency, low production cost and suitable for mass production. Background technique [0002] A kind of equidistant scroll spring like planar scroll spring, one end of which is fixed and the other end acts on torque; the use angle range is within 360 degrees, and the spring material produces bending elastic deformation under the action of torque, so that the spring is twisted in the plane, The size of its deformation angle is proportional to the torque, and it is widely used in angle adjusters of car seat recliners and valve switches. At present, there is no professional equipment for the production of equidistant scroll springs on the market, and the existing spring forming machines cannot process this type of spring. The present equidistant scroll springs are ...

AI Technical Summary

Problems solved by technology

[0004] 1. The equidistant scroll springs produced by the existing technology cannot directly achieve the same pitch, and the size must be ensured by manual shaping or supporting the workpiece inside the coil spring, and the circular arc connection is intermittent, and the straight line connection phenomenon occurs in the middle

And after the heat treatment of the coil spring, due to the reasons for supporting the workpiece, the quenching is uneven, and the hardness of a single spring varies greatly, which directly affects the torque and fatigue life.

[0005] 2. The production speed is slow and the cost of manual processing is high

[0006] 3. Cannot meet the normal parameter requirements of equidistant scroll spring

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