Joining method

FIELD: machine engineering, namely joining of constructional members of articles, for example flexible members and tips.

SUBSTANCE: method comprises steps of changing shape and size at least of one of joined members at using forces of interaction of electromagnetic fields of electric currents to be passed through electric current lead. Shape and size of joined members are changed due to moving movable members of shaping tool by action of forces caused at direct interaction of electromagnetic fields of electric currents. On portions of electric current lead turned to movable members of shaping tool electric current are passed in one direction while moving said portions together with movable members of tool. On portions of electric current lead remote from movable members electric currents are passed in opposite direction and motion of said portions is limited by means of restriction members.

EFFECT: enhanced efficiency of process, lowered energy consumption of used equipment.

4 dwg

 

The present invention relates to methods of forming structural elements used in mechanical engineering, for example, when connecting the flexible element with the tips.

The process of forming structural elements is to give them certain shapes and sizes, ensuring the implementation of, for example, Assembly operations.

There are a number of methods of forming structural elements: stamping presses, hidrotambo, stamping explosion. These methods are feasible in the presence of bulky and expensive equipment, complicated to manufacture dies and other tooling, and stamping explosion requires, in addition, taking serious security measures.

There is also known a method of molding using the technology of magnetic-pulse processing of materials, in which the forming of structural elements is the pressure resulting from the interaction of the electromagnetic field of the inductor and being formed structural element. This method is widely used in the processing of conductive materials.

One such method is protected by US patent No. 5331832, in accordance with which the currents pass distributed along the cylindrical workpiece in one direction and electrically connected with her face conductive rod in the opposite direction of the tion, when this cylindrical workpiece and a conductive rod are isolated from each other in the radial direction. The forces of interaction of the electromagnetic fields of the currents flowing through these parts, the cylindrical blank is pressed into the case.

The disadvantage of this method is the extremely low efficiency of the process, which is comparable to the efficiency of the process when using a single-turn inductor.

There is a method of connecting structural elements, including changing the shape and dimensions of at least one of the joined structural elements with the use of the forces of interaction of electromagnetic fields electric currents that flow in the conductors (SU 593781 And 24.03.1978, B 21 D 26/14).

However, this method does not have sufficient efficiency, which is determined by the values of the forces of interaction of fields inductor currents and the currents induced in the molded structural element.

Technical problem which the claimed invention is directed, is to increase the efficiency of magnetic-pulse forming structural elements of products by ensuring the interaction of fields electric currents that flow on individual sections of the conductors in opposite directions, which allows to increase the efficiency of the process and is responsible to reduce the energy intensity of the applied equipment.

To solve this problem in the known method of connecting structural elements, including changing the shape and dimensions of at least one of the joined structural elements with the use of the forces of interaction of electromagnetic fields electric currents that flow through the conductors, the change in the shape and size of connected structural elements carried out by moving the movable elements forming tool, the latter are set in motion by forces arising from the direct interaction of electromagnetic fields, electric currents, which in areas of conductors, facing to the movable elements forming tool, pass in one direction to provide movement of the mentioned sections of the conductors in conjunction with movable elements, and in areas the conductors remote from the aforementioned movable elements, in the opposite direction to limit the movement of these sections of the conductors using the bounding elements.

The invention is illustrated by drawings, where:

1 schematically shows an example of the method for crimping the shank element electrocautery device on the stranded conductor.

Figure 2 - top view figure 1

Figure 3 and 4 shows an example odnovremenno the crimping of the several shanks of similar contacts or tips.

The ends of the stranded conductors 1 is introduced into the hole of the shank, for example, contacts 2, which are placed between the crimping jaws 3. The conductors 4, placed on the outer side of the jaws 3, electric current is passed. As a result of interaction of electromagnetic fields conductors 4 with current by him currents sponge 3 are set in motion in the direction of the axes of the pins 2 and compresses the shanks of the pins 2, ensuring their connection with conductors 1. Restrictive element 5 hinders the movement of sections of the conductors, remote from the forming tools. This method of connection, for example, conductors with contacts provides a high quality connection, which is practically independent from the contractor, as well as high efficiency and productivity of the process and its ecological purity.

The method of connecting structural elements, including changing the shape and dimensions of at least one of the joined structural elements with the use of the forces of interaction of electromagnetic fields electric currents that flow in the conductors, characterized in that the change in the shape and size of connected structural elements carried out by moving the movable elements forming tool, the latter are set in motion by forces originating the mi from the direct interaction of electromagnetic fields, electric currents, which parts of the conductors facing the movable elements forming tool, pass in one direction to provide movement of the mentioned sections of the conductors in conjunction with movable elements, and on sections of the conductors remote from the aforementioned movable elements, in the opposite direction to limit the movement of these sections of the conductors using the bounding elements.



 

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