A method of manufacturing a stranded springs

 

(57) Abstract:

The method relates to the manufacture of stranded springs with given characteristics and is used in engineering and other industries. A method of manufacturing a stranded coil springs includes twisting and stretching of the wire, the strand of wire and winding it on a mandrel. The strand of wire and winding it on a mandrel to produce a single operation with a simultaneous twisting and stretching of the wire. This method can improve the performance of manufacturing springs. 1 Il.

The invention relates to the manufacture of stranded springs with given characteristics and is used in engineering and other technical fields.

A known method of manufacturing a multi-strand of spring wire. C. the USSR 264329, including the operation of the strand of wire and winding it on a mandrel, with the aim of obtaining the specified characteristics of wire products with different mechanical properties in the wire before stranding in the cable make it a pre-tension by its simultaneous twisting and stretching.

The disadvantage of this method is the fact that manufacture CLASS="ptx2">

The aim of the present invention is to improve the performance of manufacturing springs.

According to the invention the technical result is achieved in that the strand of wire and winding it on a mandrel to produce a single operation with a simultaneous twisting and stretching of the wire.

To accomplish this, you can use devices that have coils for wire placement, provide the twisting and stretching of the extruded wire (for example, coils and.with. The USSR 453212), due to the rotation of the installed radial coils (number of number lived in a manufactured spring) around a common axis to produce a strand of wire, and by moving the coils along the rotating mandrel with pinched the ends of the wire to produce a wrapped spring. All this is done simultaneously in one operation.

An example of such device is a device for manufacturing a multi-strand coil springs, the scheme of which is shown in the drawing.

The manufacture of the spring is produced as follows. Tucked the wire coil spring 6 is installed in the spool 7 devices. The wire of the coils 6 are passed through the sleeve 4 and seemless gear box 12 and 1.

1. Spool 7 with the location of the coils 6 is rotated in the desired direction, Sveva wire in the cable. At the same time rotate the coil 6 with respect to the rotating spool 7, twisting coming out of the coils 6 wire. When this coil 6 are rotated from the Central gear 13. The Central wire is stretched between the spring coil 8 and the mandrel 5 and is the basis of multi-core spring core. In the absence of a Central wire rope sbivaetsya without it. The desired direction and speed of rotation of the coils is provided by the guitar 10. The desired speed of rotation of the spool 7 is provided by the gearbox 12.

2. The mandrel 5 rotates and pulls the wire of the spring coils 6 and 8, reeling stranded in the Bush (the eye) 4 cable itself. The base 9 is placed on the spool 7 is moved along the mandrel 5, the forming step nalivaeva spring. Movement of the spool is screw Assembly 14, and a step of movement is ensured by setting feed box 1 and guitar 3. Due to the design of the coils 6 and rotation relative to the spool 7 are necessary efforts stretching and twisting of the wire in the strand in the rope and simultaneously wrapped on the mandrel 5. Wound so the safety cover, measurement of geometric and strength parameters.

A method of manufacturing a stranded springs, including torsion and tensile wire, a strand of rope and wrapped it on the mandrel, characterized in that the strand of wire and winding it on a mandrel to produce a single operation with a simultaneous twisting and stretching of the wire.

 

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