CN2235151Y

CN2235151Y - Transformer oil reservoir press-moulding die

Info

Publication number: CN2235151Y
Application number: CN 95207701
Authority: CN
Inventors: 杨清华
Original assignee: XI AN TRANSFORMER FACTORY
Current assignee: XI AN TRANSFORMER FACTORY
Priority date: 1995-03-30
Filing date: 1995-03-30
Publication date: 1996-09-11
Anticipated expiration: 2005-03-30

Abstract

The utility model discloses a press-molding die, which is adopted for manufacturing the tank walls of the oil tank of the medium and small-sized power transformer. The upper die of the press-molding die is composed of an upper pressing head, a regulating plate, etc., and the lower die is the open type. The novel press-molding die has high universality; a pair of dies can satisfy the production of the transformer tank with series specification, and the press-molding die breaks through the traditional design that the processing of one workpiece with the general die requires a pair of the dies. After adopting the press-molding die, the structure of the oil tank of the transformer is simplified; the process is improved; the labor intensity for processing is lowered; the labor and the materials are saved; the mechanical strength of the oil tank is increased; the effective heat radiating area is enlarged, and the appearance is beautiful and practical.

Description

The oil tank of transformer press-moulding die

The utility model belongs to the punch process technical field, is used for the manufacturing of middle-size and small-size power transformer fuel tank mainly as moulds of industrial equipment.

It is steel plate more than 10 millimeters that the middle-size and small-size power transformer fuel tank of original structure, the many ovalizes of profile, tank wall generally adopt thickness, and outer surface also needs strengthen with channel-section steel.Thereby its weld seam is a lot of, and the welding job amount is big, and labour intensity is also big, goes back contaminated environment, and working condition is abominable, and is time-consuming, and production efficiency is low.Simultaneously, the fuel tank area of dissipation of original structure is little, and volume is big, Heavy Weight, and overall performance and economic and technical norms are poor.

The purpose of this utility model provides the oil tank of transformer casted die mould, makes by the mould processing technology of colding pressing, and the oil tank of transformer tank wall is pressed into flap shape, and reach body structure and simplify, labor and material saving, weight reduction increases the effect of area of dissipation.

Above-mentioned purpose is achieved like this: form the oil tank of transformer press-moulding die with formpiston, former and roller.Former is a plurality of grooved pieces, in two upper edges of groove, adorns roller between per two grooved pieces, and constituting former two limits respectively has row's roller, and every row's roller shaft is to one heart, equal diameters; Formpiston is made up of a plurality of projections, pressure head, adjustable plate, on the projection both sides, adorns roller between per two projections, constitutes two row's rollers, and every row's roller shaft is to one heart, equal diameters; Adorn "T"-shaped by gusset piece on the projection of formpiston, "T"-shaped connects with the flap head; Adorn die holder under the former, under die holder, refill fixed dam; Respectively adorn an inverted "L" shaped lifting arm along two of die feeding side, under this bar roller is housed.

Change the width of pressure head and the thickness of adjustable plate, can change institute's backfin plate shape tank wall size.

Characteristics of the present utility model: by the mould processing technology of colding pressing, the oil tank of transformer tank wall is pressed into flap shape, be welded into corrugated casing, change the traditional fabrication method that oval-type oil tank outside weld channel-section steel is strengthened, make the whole box body designs simplification, significantly reduced the welding job amount, labor and material saving, alleviated weight, increased area of dissipation, profile is also attractive in appearance; In addition, this mould highly versatile, one pair of mould can satisfy the processing of the waviness width various fuel tanks different with the degree of depth, has broken through the traditional design that a conventional workpiece needs one pair of mould.

Accompanying drawing 1 is the utility model embodiment front view; Accompanying drawing 2 is an end view; Accompanying drawing 3 is processed ripple workpiece vertical view.

Accompanying drawing and operation principle explanation: earlier counterdie (item 3) is fixed on the folder following table with die shoe (item 2) and fixed dam (item 1), again patrix (item 11) is fixed on the seaming chuck of folder with T type piece (item 14) and gusset piece (item 13), then the centering center.Match patrix discipline 5 pressure heads and 6,7 adjustable plate by instructions for use during cold presswork, then steel plate is put into, reserve the ripple pitch, start folder, then (upper and lower mould respectively has 19 pairs to steel plate along the roller of counterdie (3), totally 76) slippage downwards, steel plate two ends perk this moment, patrix (item 11) roller is just pushed down it and is progressively flattened.Die mould finishes, and promotes on the patrix drive lifting arm (item 12) to lift, and dress roller colludes respectively in steel plate two side lower parts under it, and workpiece is deviate from from mould.Check by figure, not enough as the degree of depth, can increase by 8 tuning plate and press again, up to meeting the drawing requirement.Push workpiece to front end then, continue to press second waveform.

Embodiment: make former 3 with 20 grooved metal derbies, utilize grooved piece two upper edges to do supporting between per two grooved pieces roller shaft 9 is installed, constituting former two limits respectively has row's roller 10-1,10-2, and every row (19 rollers are arranged) roller shaft is to one heart, equal diameters; Formpiston is made up of 20 projections 11, pressure head 5,

adjustable plate

6,7 and tuning plate 8, adorns roller between per two projections, and constituting the formpiston both sides respectively has row's roller 10-3,10-4, and every row has 19 rollers, and every row's roller shaft is to one heart, equal diameters; Adorn "T"-shaped 14 by gusset piece 13 on the projection 11 of formpiston, "T"-shaped connects with the flap head; Dress die holder 2 refills fixed dam 1 under the former under the die holder; Respectively adorn an inverted "L" shaped lifting arm 12 along two of die feeding side, constitute a cover oil tank of transformer casted die mould.

The former of this mould is fixed on the folder following table by die holder 2 and fixed dam 1; Formpiston is fixed on the seaming chuck of folder by gusset piece 13 and "T"-shaped 14, and cold presswork just can be carried out to workpiece 4 in the centering center.During cold presswork, can match pressure head 5 and

adjustable plate

6,7 in the formpiston on request earlier, then steel plate (workpiece 4) is put into, reserve the ripple pitch, start folder, steel plate is then along the downward slippage of roller 10-1,10-2 of former 3, steel plate two ends perk this moment, roller 10-3, the 10-4 of formpiston 11 just push down it, and progressively flatten.Treat that die mould finishes, promote formpiston, drive on the lifting arm 12 and lift, the second wheel under the lifting arm colludes respectively in the bottom, two of steel plate one side, and workpiece 4 is deviate from from mould.Not enough as the degree of depth, can increase tuning plate and press again.After waiting to meet the requirements, push workpiece 4 to front end, continue to press second waveform ...The workpiece vertical view of accompanying drawing 3 for being pressed into, L is the ripple pitch among the figure, and I is the ripple degree of depth, and e is a steel plate thickness, and R1 is a round radius, and by the decision of roller radius, R2 is a fillet radius, and by the round end radius decision of pressure head, R is the radius of ripple projection arc.

Claims

1. an oil tank of transformer press-moulding die is made up of formpiston, former and roller, it is characterized in that former is a plurality of grooved pieces, between two upper edges of groove, per two grooved pieces, adorn roller, constituting former two limits respectively has row's roller, and every row's roller shaft is to one heart, equal diameters; Formpiston is made up of a plurality of projections, pressure head, adjustable plate, tuning plate, adorns roller between projection both sides, per two projections, constitutes two row's rollers, and every row's roller shaft is to one heart, equal diameters; Adorn "T"-shaped by gusset piece on the projection of formpiston; Adorn die holder under the former, under die holder, refill fixed dam; Respectively adorn an inverted "L" shaped lifting arm along two of die feeding side, under this lifting arm roller is housed.