CN202045257U - Forming mold for transverse cutting type ultrahigh pressure shielding cover - Google Patents

Abstract

The utility model provides a forming mold for a transverse cutting type ultrahigh pressure shielding cover, which relates to a forming and processing mold for the transverse cutting type ultrahigh pressure shielding cover in electric power equipment. The product design requirement can be met. The forming mold comprises an upper mold and a lower mold, wherein the upper mold comprises a stretch forming mold and a flanging mold, the lower mold comprises a body, the body comprises a core body and a forming cavity, the forming cavity has the coincident outer surface outline with the shielding cover, the cover body and the body are detachably connected, the stretch forming mold is provided with a middle hole, the outer surface of the stretch forming mold is a forming surface coincident with the inner surface outline with the shielding cover, and the flanging mold is in a reverse cone frustum shape. The lower mold of the forming mold is in a combined type, the body and the core body are combined for being matched with the stretch forming mold, the primary forming processing is firstly carried out, then, the core body is dismounted to be matched with the flanging mold, the upper half body and the lower half body are manufactured, finally, the butt joint welding is carried out, and the forming mold is manufactured. The forming mold adopts the combined type lower mold, the structure is relatively simple, and the goal of processing required products at low cost under the condition of conforming to the design requirements through the two effective lower molds is realized.

Description

Laterally cut the mould of fraction super-pressure radome

Technical field

The utility model relates to the mould that laterally cuts fraction super-pressure radome processing and forming in a kind of power equipment.

Background technology

When the power equipment charging test,, need radome be set in correlation test instrument, device external for preventing the influence of high voltage electric field to test apparatus, equipment.The power test equipment of different structure shape needs the adaptive radome of profile with it, such as, be applied in the transformer of the annular in the super-pressure test, its outside radome one is the requirement that needs to adapt to the super-pressure occasion, the 2nd, and its structure can be suitable with transformer.The super-pressure radome is the vitals of voltage transformer in the high-voltage fence, and the super-pressure radome is different from general radome, and the industrial frequency withstand voltage that it bears requires than higher, and manufacturing process is relatively stricter, and particularly the radome curved surface requires to be lower than the 5pc discharge capacity.

At present, the ring shielding cover that is applied in the transformer outside all is global formation usually, and the radome body is circular, the c-shaped shape in cross section, and opening is in the inner ring inboard.But the Mold Making more complicated of global formation, demoulding inconvenience, production efficiency is low, the production cost height.For this reason, the applicant provides a kind of super-pressure radome of horizontal section fraction, it has and a pair ofly is circular, the cross section is first body last or half C shape down and second body, but product requirement, its C in shape or the opening of second body towards the axle center of body, and the opening peristoma is turned in the shape chamber of C shape body.

The utility model content

The utility model provides a kind of low cost, combined type at above problem, can satisfy the mould that laterally cuts fraction super-pressure radome of product design requirement.

The technical solution of the utility model is: comprise upper die and lower die, described patrix comprises stretch die and flange die;

Described counterdie comprise have core body with the body of the consistent forming cavity of radome outer surface profile; Described core body and body removably connect;

Described stretch die is provided with mesopore, and the outer surface of stretch die is and the consistent forming surface of described radome inner surface profile;

Described flange die is the rounding taper type.

Described flange die outer surface lower edge is provided with the curved surface of indent.

With the structure of super-pressure radome change upper and lower two halves form into, after the version that the centre welding is connected as a single entity; Need carry out processing and forming respectively to two halfbodies.Counterdie of the present utility model is knockdown, and body and core body are combined, and cooperates stretch die, carries out the processing and forming first time earlier, is about to the annulus flat board, is processed into the torus that the cross section is half C shape; Dismantle core body again, cooperate, the peristoma in the torus is turned in half C shape inner chamber, make first body and second body with flange die; At last, with first body and the involutory welding of second body, promptly make radome.The utility model adopts counterdie, the structure of combining form simple relatively, but effective two counterdies make under situation about adhering to specification, and can process the product that needs at low cost.

Description of drawings

Fig. 1 is the structural representation of counterdie in the utility model

Fig. 2 is the structural representation of stretch die in the utility model

Fig. 3 is the structural representation of flange die in the utility model

Fig. 4 is the structural representation of manufactured goods after the processing and forming for the first time in the utility model

Schematic diagram when Fig. 5 is the utility model processing and forming second time

Fig. 6 is the structural representation that the utility model makes product

1 is body among the figure, the 10th, and forming cavity, the 11st, core body, the 2nd, stretch die, the 20th, mesopore, the 21st, circular arc, the 3rd, flange die, the 30th, inversed taper platform shape, the 31st, curved surface, the 4th, radome, the 40th, the peristoma after the moulding for the first time, the 41st, the peristoma after the moulding for the second time.

The specific embodiment

The utility model comprises upper die and lower die as Figure 1-3, and described patrix comprises stretch die 2 and flange die 3;

Described counterdie comprise have core body 11 with the body 1 of the consistent forming cavity 10 of radome 4 outer surface profiles; Described core body 11 removably connects with body 1;

Described stretch die 2 is provided with mesopore 20, and the outer surface of stretch die 2 is and the consistent forming surface of described radome 4 inner surface profile; Its bottom is provided with circular arc 21;

Described flange die 3 is rounding taper type 30; Reduce the processing resistance during for flange, described flange die 3 outer surface lower edges are provided with the curved surface 31 of indent.

Process principle of the present utility model is shown in Fig. 4-6: during moulding for the first time, stretch die 2, assembly with core body 11 and body 1 is worked, and with the manufactured goods of annular Sheet Metal Processing one-tenth as Fig. 4 structure, the peristoma 40 after the moulding for the first time is vertically upward; Then, the core body 11 of dismantling prevents manufactured goods in body 1, utilizes the peristoma 40 after inversed taper platform shape 30 moulding for the first time of flange die 3 to turn in C shape cavity, as shown in Figure 5.Finally, turn in the peristoma 41 after the moulding for the second time, adhere to specification.

Claims (2)

1. laterally cut the mould of fraction super-pressure radome, comprise upper die and lower die, it is characterized in that, described patrix comprises stretch die and flange die;

Described counterdie comprise have core body with the body of the consistent forming cavity of radome outer surface profile; Described core body and body removably connect;

Described stretch die is provided with mesopore, and the outer surface of stretch die is and the consistent forming surface of described radome inner surface profile;

Described flange die is the rounding taper type.

2. the mould of horizontal section fraction super-pressure radome according to claim 1 is characterized in that, described flange die outer surface lower edge is provided with the curved surface of indent.

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