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Preparation process of volute spiral spring

A scroll spring and preparation technology, which is applied in the field of spring processing, can solve the problems of low fatigue strength, low tissue precision of scroll spring, and low product quality, and achieve the effect of increasing tissue density, improving quality, and improving work efficiency

Inactive Publication Date: 2019-10-22
浙江裕荣弹簧有限公司
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Problems solved by technology

[0003] The existing scroll spring production process includes steps such as coil spring, heat treatment, and shot blasting treatment. In the heat treatment of scroll springs, most of the existing processes only undergo quenching and tempering treatments, and finally the scroll springs are obtained after forming. The structure precision of the spring is low, the fatigue strength is low, and the product quality is low

Method used

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  • Preparation process of volute spiral spring
  • Preparation process of volute spiral spring
  • Preparation process of volute spiral spring

Examples

Experimental program
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Embodiment 1

[0047] refer to figure 1 , the preparation technology of a kind of scroll spring disclosed by the present invention, comprises the following steps:

[0048] S1: spring raw material preparation;

[0049] S2: Punching the raw material to obtain the punching material;

[0050] S3: forming the punching material to obtain the forming material;

[0051] S4: First use the spring end grinding equipment to grind the end of the molding material and deburr the inside and outside, and then use the special mandrel for winding processing. During the winding processing, the bottom of the molding material is paved with corrugated cardboard, and the winding is completed. Finally, the coil spring intermediate material is obtained;

[0052] S5: Carry out normalizing, quenching, and tempering treatments to the coil spring intermediate material in turn to obtain a coil spring semi-finished product; wherein, the holding time of the coil spring intermediate material for normalizing treatment is 6...

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Abstract

The invention discloses a preparation process of a volute spiral spring and relates to the technical field of spring preparation. The preparation process includes the following steps: S1: a spring rawmaterial is prepared; S2: hole punching treatment is performed on the raw material, and a hole punched material is obtained; S3: forming treatment is performed on the hole punched material, and a formed material is obtained; S4: winding treatment is performed on a special mandrel for the formed material, and a coil spring intermediate material is obtained; S5: normalizing, quenching and temperingtreatment is sequentially performed on the coil spring intermediate material, and a semi-finished coil spring is obtained; S6: reaming and shot blasting aftertreatment is performed on the semi-finished coil spring, and an aftertreatment semi-finished product is obtained; and S7: size inspection is performed on the aftertreatment semi-finished product, surface treatment is performed after qualifying, and finally the finished volute spiral spring is obtained. The preparation method has the advantages of improving the finished product quality of the volute spiral spring.

Description

technical field [0001] The invention relates to the technical field of spring processing, in particular to a preparation process of a scroll spring. Background technique [0002] Planar scroll spring, also known as clockwork spring, is a spring with one end fixed and the other end acting with torque; under the action of torque, the spring material produces bending and elastic deformation, which makes the spring twist in the plane, and the deformation angle is the same as Torque is directly proportional. [0003] The existing scroll spring production process includes steps such as coil spring, heat treatment, and shot blasting treatment. In the heat treatment of scroll springs, most of the existing processes only undergo quenching and tempering treatments, and finally the scroll springs are obtained after forming. The structure precision of the spring is low, the fatigue strength is low, and the product quality is low. Contents of the invention [0004] Aiming at the defi...

Claims

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Application Information

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IPC IPC(8): C21D1/18C21D1/28C21D7/06C21D1/58B21F35/00C21D9/02
CPCB21F35/00C21D1/18C21D1/28C21D1/58C21D7/06C21D9/02
Inventor 金晨张诗崇
Owner 浙江裕荣弹簧有限公司
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