CN2129660Y

CN2129660Y - Electric shock former

Info

Publication number: CN2129660Y
Application number: CN 92227921
Authority: CN
Inventors: 张寒虹
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 1992-07-06
Filing date: 1992-07-06
Publication date: 1993-04-14
Anticipated expiration: 2002-07-06

Abstract

The utility model provides an electric shock former used for machining closing end parts with thin walls, deep extension parts with complex shapes, expanding parts, etc. The electric shock former is composed of a shock current generator, a sealed pressure container and a panel, wherein, the shock current generator is composed of a charger, a trigger, a capacitor bank and an isolating switch; the pressure container is a sealed container whose one wall is formed from metal blanks. The utility model has the advantages of simple structure, convenient operation, less steps, high rate of finished products and less power consumption; a metal part which is formed by shocking can keep the surface smooth finish of original materials without burnishing, polishing and other surface treating steps; a metal tooth base which is formed by shocking has the advantages of thin thickness, light weight, and no pollution and accords with sanitary requirements.

Description

Electric shock former

The utility model relates to the electrical impulse compacting technical field.

In the prior art, to thin-walleds and complex-shaped such as denture base saddles, the way that the high part of required precision often adopts casting or cold stamping to be shaped, but its product quality is difficult for assurance, has influenced result of use.And its complex procedures, the cost of manufacture height.

The purpose of this utility model is to provide a kind of electrical impulse compacting device of simple and easy to do, cheap processing metal thin-walled parts, can accurately guarantee product quality.

The utility model is realized in the following way.

The utility model is by impulse current generator, and sealed pressure vessel and a panel that is equipped with switch constitute.Impulse current generator comprises charger, the trigger that is made of pressure regulator, step-up transformer and rectifier, capacitor group and isolating switch, the output of charger is connected with the capacitor group, be connected with isolating switch on the positive pole of capacitor group, negative pole links to each other with the electrode B of sealed pressure vessel, the output of trigger links to each other with the trigger electrode of isolating switch, and the output of isolating switch links to each other with electrode A.Described sealed pressure vessel, sheet metal blank with the metal forming thing is place's wall, this blank is near the model cavity surface of article shaped, also be provided with steam vent on the model cavity surface, model seat and the pressure vessel body of placing model are connected, be loaded with in the pressure vessel that physical characteristic is the medium of fluid under liquid medium or the high pressure conditions, electrode A, B stretch in the medium in pressure vessel, are connected with wire between two electrodes.During charging, isolating switch makes capacitor group and load isolation, after charger charged to certain voltage value to the capacitor group, trigger sent the high pressure trigger impulse and makes the isolating switch conducting, and the capacitor group is to the wire short circuit dischange, form the pulse shock electric current, make wire overheated, gasification is sharply expanded, produce crunch, shaping blank sheet metal is hit is deformed into article model shape.

The also available Marx generator circuit of impulse current generator replaces, and utilizes the charged in parallel of capacitor, and discharged in series forms the pulse shock electric current.The wall of the sealed pressure vessel that is made of the thin metal layer blank also can add the soft material thin layer composite by sheet metal and constitute.Medium described in the utility model can be water, sand, oil, wax, talcum powder etc.

The utility model is simple in structure, and is easy to operate, yield rate height, little power consumption; The metal denture fixing device of impact forging, metal surface is constant, need not surface treatment procedures such as polishing, polishing; The metal parts of impact forging, thin thickness, in light weight, paste mould precision height.

The utility model will be further described below in conjunction with accompanying drawing.

Accompanying drawing 1. the utility model impulse current generator block diagrams.Wherein, 1-charger, 2-capacitor group, 3-trigger, 4-isolating switch.

Accompanying drawing 2. is panel schematic diagrames.Wherein, the 5--power supply indicator, the 6--power switch, the 7--charge switch, the 8--shutdown switch, 9--Vent decontrols the pass, the 10--trigger switch, 11--triggers indicator lamp.Press charge switch, charger is to capacitor group charging, when being charged to scheduled voltage, and triggers under the bright situation of indicator lamp, presses trigger switch, and trigger action makes the isolating switch conducting.

Accompanying drawing 3. impulse current generator circuit theory diagrams.Capacity of capacitor bank is 10 μ f-1000 μ f preferably, and charging voltage is 2-20KV preferably.When charging voltage surpasses 20KV, should take anti-flashover measure in the circuit.

Accompanying drawing 4 is described isolating switch structural representations.Among the figure, the insulated leg 18 that has metallic conductor hemisphere 19, be connected in respectively on the base plate 16,17 with the insulated leg 15 that has metallic conductor hemisphere 14, be arranged with the dovetail groove guide rail structure on this two base plate, both can slide relatively, so that regulate 19,14 of metallic conductor hemisphere suitable distance are arranged.Porose on hemisphere 14 and the bearing, hole built-in one thin straight bar type electrode 13, and have insulating barrier 12 to make it and hemisphere 14 insulation.

Accompanying drawing 5 is in order to the embodiment schematic diagram of the sealed pressure vessel of processing profiled thin-walled parts.Among the figure, 20 is nearly cylindrical material blank, and 21 is part model, and 22 is model base, and 23 is the model upper air-vent.

Accompanying drawing 6 is in order to the embodiment schematic diagram of sealed pressure vessel of processing denture fixing device.Among the figure, lid 24 and pressure container body 27 usefulness are threaded, and 25 and 28 is seal, and 26 is liquid medium water, A, B electrode stretch in water, and are linked to each other by wire W, and 29 is the sheet metal in order to the processing denture fixing device, 30 is the denture fixing device model, and 31 is the model seat, and 32 is the steam vent on the model.

Accompanying drawing 7, the Marx generator circuit theory diagrams.Wherein, 33--ball crack.

The utility model can be used to process medical courses in general metal denture fixing device or facing pipe and so on thin-wall part, also can be in order to process other thin-walled vessel head part, complicated shape deep drawing part, bulging part etc.It has simple in structure, and is easy to use, and little power consumption can be saved advantages such as material, and the part of being processed has kept the surface smoothness of raw material, and moulding is clear, and is pollution-free.

Claims

1, a kind of electrical impulse compacting device is characterized in that it by impulse current generator, and sealed pressure vessel and a panel that is equipped with switch constitute,

Described impulse current generator comprises charger, trigger, capacitor group and the isolating switch that is made of pressure regulator, step-up transformer and rectifier, the output of charger is connected with the capacitor group, be connected with isolating switch on the positive pole of capacitor group, negative pole links to each other with the electrode B of sealed pressure vessel, the output of trigger links to each other with the trigger electrode of isolating switch, and the output of isolating switch links to each other with electrode A;

Described sealed pressure vessel, sheet metal blank with the shaping thing is place's wall, this blank is near the model cavity surface of article shaped, also be provided with steam vent on the model cavity surface, model seat and the pressure vessel body of placing model are connected, be loaded with in the pressure vessel that physical characteristic is the medium of fluid under liquid medium or the high pressure, electrode A, B stretch in the medium in pressure vessel, are connected with wire between two electrodes.

2, electrical impulse compacting device as claimed in claim 1 is characterized in that described impulse current generator also can replace with the Marx generator circuit.

3, electrical impulse compacting device as claimed in claim 1 is characterized in that also can adding the wall of the described sealed pressure vessel that is made of the sheet metal blank soft material thin layer composite by sheet metal and constitute.