CN102492829A

CN102492829A - High-current electrifying device

Info

Publication number: CN102492829A
Application number: CN2011103918168A
Authority: CN
Inventors: 沈耀; 马佳伟; 李奥; 吕智; 金学军
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2011-12-01
Filing date: 2011-12-01
Publication date: 2012-06-13
Anticipated expiration: 2031-12-01
Also published as: CN102492829B

Abstract

The invention provides a high-current electrifying device, which comprises more than one layer of holder, each layer of holder comprises a plurality of cylindrical through holes along the horizontal extending direction of the holder, and the first end of each through hole is provided with a tail cover; the high-current electrifying device also comprises conducting blocks and springs, which are arranged in the through holes, the springs are located between the conducting blocks and the tail covers, the conducting blocks is slidably fitted in the through holes, and the end of each conducting block is semispherical, and is exposed out of the opening of the second end of the through hole. The device can electrify a large workpiece, can ensure that high current can uniformly pass through a processed area, and can be in tight contact with the workpiece, meanwhile, the size of the device can be changed according to the shape of the processed area of the workpiece, and the device also can process local areas.

Description

Big electric current energising device

Technical field

The present invention relates to the electrical treating field, particularly a kind of big electric current energising device.

Background technology

Large-scale workpiece is being carried out in the process of plastic working; Tend to produce the phenomenon of work hardening; The reaction that the entanglement of the dislocation that promptly in plastic history, produces and dislocation and second reach lattice defect mutually makes that the motion of dislocation is hindered, and causes viscous deformation to carry out difficulty.In order to reduce the increase of the resistance to deformation that work hardening brings, can improve the plastic deformation ability of material through the Electroplastic effect.

The Electroplastic effect is meant material under moving electron (electric current or electric field) effect, and resistance to deformation sharply descends, the phenomenon that plasticity obviously improves.Therefore in the plastic forming of metals process; On the flow of metal direction, impose high-density current; Thereby form electron wind in metal inside; Electron wind acts on metal and promotes the motion of its dislocation and overcome the obstacle in the motion, has alleviated the influence that the FORCEF FIT phenomenon produces, and its forming property is improved greatly.To large-scale workpiece; The energising device that then need adapt with it want to conduct the big electric current of hundreds of to several KAs, and the homogeneity that will guarantee to switch on is to reach better Electroplastic effect; Also want simultaneously and can closely contact, to reduce the generation of electrical spark with workpiece.For the Electroplastic effect is applied on the large-scale workpiece, so those skilled in the art is devoted to develop a kind of device that can satisfy above-mentioned condition.

Summary of the invention

Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides a kind ofly can conduct big electric current, and energising evenly, the lane device that can closely contact with workpiece.

For realizing above-mentioned purpose, the invention provides a kind of big electric current energising device, comprise the retainer that one deck is above, every layer of retainer includes a plurality of cylindrical holes on the direction of its horizontal expansion, and first end of this through hole has tail-hood; Also comprise the conducting block and the spring that place in this through hole, this spring is between this conducting block and this tail-hood, and this conducting block and this through hole are for being slidingly matched, and its end is a semisphere, and be exposed to outside the opening of this through hole second end.

In preferred embodiments of the present invention, the opening of this through hole second end is greater than the end of said conducting block, but less than the body of this conducting block, make this conducting block by this spring roof pressure on the opening of second end of this through hole.

In another preferred embodiments of the present invention, have hole on this tail-hood, lead links to each other with this conducting block through this hole.

In another preferred embodiments of the present invention, be separate between every layer of retainer, this big electric current energising device comprises the multilayer retainer that stacks, can be through stacking the shape that changes the energising device between the different retainers.

In another preferred embodiments of the present invention, the spacing between this through hole of this retainer is roughly the same.

In another preferred embodiments of the present invention, retainer is that insulating material is processed.

The present invention is when work; Can be according to the size of the big or small modifier of process zone; Pass to electric current for each conducting block through lead; When device is compressed workpiece, can keep conducting block to contact through stretching of spring to the surface of injustice, and the square cut zone of retainer can guarantee the homogeneity that workpiece is switched on everywhere with the tight of work piece surface.

The invention has the beneficial effects as follows can be to the processing of switching on of large-scale workpiece; Guarantee that big electric current evenly passes through process zone; And contact closely, can be directed against the size of the alteration of form device of workpiece process zone simultaneously, also can carry out processing treatment to regional area.

Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.

Description of drawings

Fig. 1 is the stereographic map of the big electric current energising device of a preferred embodiment of the present invention;

Fig. 2 is the rear view of big electric current energising device embodiment illustrated in fig. 1;

Fig. 3 is the sectional view of big electric current energising device embodiment illustrated in fig. 1.

Embodiment

As shown in the figure, as shown in Figure 1, this device comprises: conducting block 1, and spring 2, tail-hood 3, retainer 4, through hole 5 and lead 6, wherein: retainer 4 stacks according to the big or small layering in zone to be processed; The retainer 4 of each layer all is divided into row's square region.

As shown in Figure 2, wherein be provided with a columniform through hole 5 in each zone, foursquare hub overlaps with the hub of cylindrical hole 5; Place the spring 2 of certain rigidity in the through hole 5, conducting block 1 is pressed on the spring 2.

As shown in Figure 3, retainer 4 rear portions and each square corresponding position are provided with the tail-hood 3 of through hole, and it plays fixed constraints to spring 2; An aperture is arranged in the central zone of each tail-hood 3, and lead 6 connects the purpose that conducting block 1 reaches conduction current through aperture.

More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims

1. one kind big electric current energising device comprises the retainer that one deck is above, and every layer of said retainer includes a plurality of cylindrical holes on the direction of its horizontal expansion, and first end of said through hole has tail-hood; Also comprise the conducting block and the spring that place in the said through hole, said spring is between said conducting block and said tail-hood, and said conducting block and said through hole are for being slidingly matched, and its end is a semisphere, and is exposed to outside the opening of said through hole second end.

2. big electric current energising device as claimed in claim 1; It is characterized in that; The opening of said through hole second end is greater than the end of said conducting block, but less than the body of said conducting block, make said conducting block by said spring roof pressure on the opening of second end of said through hole.

3. big current channel device as claimed in claim 1 is characterized in that, has hole on the said tail-hood, and lead links to each other with said conducting block through described hole.

4. like claim 1 or 2 or 3 described big electric current energising devices, it is characterized in that, is separate between every layer of said retainer, and described big electric current energising device comprises the said retainer of the multilayer that stacks.

5. like claim 1 or 2 or 3 described big electric current energising devices, it is characterized in that the spacing between the said through hole of said retainer is roughly the same.

6. like claim 1 or 2 or 3 described big electric current energising devices, it is characterized in that said retainer is that insulating material is processed.