CN201887614U - Motor rotor die-casting mould - Google Patents

Abstract

The utility model relates to a motor die-casting mould design. In order to solve the problems of improving the production efficiency and prolonging the service life of a mould, the utility model provides a motor rotor die-casting mould which comprises a lower mould splint, a lower mould, a conical plug, a middle mould, a lower mould pressure plate, a mandrel, an upper mould and an upper mould backing plate. The motor rotor die-casting mould manufactures the lower part of the mandrel into a flat bottom by changing the structural form of the lower mould, fixes the middle mould with the lower mould pressure plate and die casts a cast aluminum rotor, and can ensure the quality of the rotor. The motor rotor die-casting mould has the advantages that the design is reasonable, the cost is low, the operation is convenient, the quality of the rotor is ensured, the production efficiency is improved, and the service life of the mould is prolonged.

Description

The cast die of electric machine rotor tool

Technical field

The utility model relates to a kind of motor die casting design.

Background technology

In electromechanics trade, not having an axle rotor is the indispensable part of motor, and many producers are in order to satisfy own production needs, all make by oneself the die casting that meets oneself production needs.In Fig. 1, we want die casting to go out qualified no axle rotor as can be seen at present, the axiality that mould, counterdie backing plate, counterdie fit together in just must guaranteeing, this has brought certain difficulty for undoubtedly manufacturing of part, has brought certain trouble also for simultaneously the cast aluminium operator.The operator wants a kind of nothing axle of die casting rotor, at first will be with Bolt Connection together counterdie and counterdie backing plate, be placed on the cast aluminium die casting machine, in mould be placed on the counterdie backing plate, middle mould tight loop is fixed by bolts on the counterdie backing plate again, causes production efficiency not high, the bottom of axle is taper simultaneously, one of each die casting does not have the axle rotor all can produce a power to counterdie, and the life-span of counterdie reduces greatly.

Summary of the invention

In order to solve the problem that production efficiency is not high, improve die life, the utility model provides a kind of cast die of electric machine rotor tool.

The technical scheme that the utility model adopted is: cast die of electric machine rotor tool, this mould comprise bottom plate, counterdie, conical plug, middle mould, following moulded board, axle, patrix and upper die plate, it is characterized in that:

Described bottom plate is a middle plate object that has circular counterdie installing hole;

Described counterdie is that a upper and lower surface is provided with annular boss, centre and is provided with the circular disk body that taper apical pore and aluminium liquid are injected the hole, and the counterdie installing hole on described lower surface annular boss and the bottom plate forms interference fit;

The tapering of the taper apical pore on the tapering of described conical plug and the counterdie is consistent, and the height of conical plug is consistent with the height of taper apical pore;

Mould is a upper and lower opening in described, and lower limb has the cover body of flange, and the inner chamber of cover body lower end and counterdie upper surface annular boss forms interference fit, and lip diameter is consistent with counterdie disk body diameter;

Described moulded board down is the cover cap that a surface has trepanning, the diameter of trepanning is consistent with middle mould external diameter, be provided with two-stage Ka Tai in the inside of cover cap, the consistency of thickness of the height of first order Ka Tai and counterdie disk body, the height of second level Ka Tai equal the height of counterdie upper surface annular boss and middle mould lower flange height and, on mould, middle mould lower flange, counterdie disk body and upper surface annular boss passed through during following moulded board was set in by the trepanning on it

Two-stage Ka Tai in the following moulded board forms interference fit;

Described patrix is the disk that has arbor hole in the middle of, and the patrix lower surface is provided with circular groove, by the circular groove spiral-lock in middle mould top;

Described upper die plate is a circular discs, is provided with the circular spindle arrival slot at the lower surface of upper die plate;

Described axle is a cylinder, and the bottom is provided with the rotor punching pallet, and its top is passed in the axle arrival slot that the patrix arbor hole stretches into upper die plate.The beneficial effects of the utility model are: utilize to change the version of counterdie, the lower part of axle is made flat, with moulded board down fixing in mould, the cast-aluminum rotor that die casting goes out can be guaranteed rotor quality.The utlity model has reasonable in designly, with low cost, easy and simple to handle, reach and guarantee rotor quality, enhance productivity and the effect of die life.

Description of drawings

Fig. 1 is a general assembly drawing of the present utility model.

Fig. 2 is the cutaway view after the utility model assembling.

Among the figure, 1, bottom plate, 2, the counterdie installing hole, 3, counterdie, 4, annular boss, 5, the taper apical pore, 6, aluminium liquid injects the hole, 7, conical plug, 8, middle mould, 9, middle mould lower flange, 10, moulded board down, 11, trepanning, 12, one-level Ka Tai, 13, secondary Ka Tai, 14, patrix, 15, arbor hole, 16, patrix circular groove, 17, upper die plate, 18, axle, 19, axle is stretched out the hole, and 20, the rotor punching pallet, 21, rotor punching.

Embodiment

As shown in Figure 1, cast die of electric machine rotor tool, this mould comprise bottom plate 1, counterdie 3, conical plug 7, middle mould 8, following moulded board 10, axle 18, patrix 14 and upper die plate 17.

As shown in Figure 1, bottom plate 1 is a middle plate object that has circular counterdie installing hole 2;

As shown in Figure 2, counterdie 3 is that a upper and lower surface is provided with annular boss 4, centre and is provided with the circular disk body that taper apical pore 5 and aluminium liquid are injected hole 6, and lower surface annular boss 4 forms interference fit with counterdie installing hole 2 on the bottom plate 1;

As shown in Figure 2, the tapering of the taper apical pore 5 on the tapering of conical plug 7 and the counterdie 3 is consistent, and the height of conical plug 7 is consistent with the height of taper apical pore 5;

As shown in Figure 2, middle mould 8 is a upper and lower opening, and lower limb has the cover body of flange 9, and the inner chamber of cover body lower end and counterdie 3 upper surface annular boss 4 forms interference fit, and flange 9 diameters are consistent with counterdie 3 disk body diameters;

As shown in Figure 1, following moulded board 10 is the cover cap that a surface has trepanning 11.As shown in Figure 2, the diameter of trepanning 11 is consistent with middle mould 8 external diameters, be provided with two-stage Ka Tai in the inside of cover cap, the height of first order card platform 12 and the consistency of thickness of counterdie disk body, the height of second level card platform 13 equal the height of counterdie 3 upper surface annular boss 4 and middle mould lower flange 9 height and, on the mould 8, the two-stage Ka Tai under middle mould lower flange 9, counterdie disk body and upper surface annular boss 4 pass through in the moulded board 10 formed interference fit during following moulded board 10 was set in by the trepanning on it 11;

As shown in Figure 1, patrix 14 is the disk that has arbor hole 15 in the middle of, and as shown in Figure 2, patrix 14 lower surfaces are provided with circular groove 16, by circular groove 16 spiral-locks in middle mould 8 tops;

As shown in Figure 1, upper die plate 17 is a circular discs, stretches out hole 19 at the lower surface circular spindle of upper die plate;

As shown in Figure 2, axle 18 is a cylinder, and the bottom is provided with rotor punching pallet 20, and its top is passed patrix arbor hole 15 and stretched out hole 19 by the axle of upper die plate and stretch out.

The concrete steps that above-mentioned mould uses are:

(a) rotor punching 21 is stacked on the axle 18;

(b) counterdie 3 is placed on the bottom plate 1;

(c) middle mould 8 is placed on the counterdie 3 concentricity of mould and counterdie in will guaranteeing;

(d) following moulded board 10 is installed with mould 8 in fixing;

(e) upper die plate 17 and patrix 14 usefulness silk are fixed together;

(f) upper die plate 17 is fixed on the lathe;

(g) rotor punching of folding 21 is put into mould 8;

(h) die casting;

(i) the push rod jack-up conical plug 7 of die casting machine does not have axle rotor and middle mould and takes out together;

(j) axle 18 is withdrawed from, finish die casting work.

Claims (1)

1. cast die of electric machine rotor tool, this mould comprise bottom plate, counterdie, conical plug, middle mould, moulded board, axle, patrix and upper die plate down, it is characterized in that:

Described bottom plate is a middle plate object that has circular counterdie installing hole;

Described counterdie is that a upper and lower surface is provided with annular boss, centre and is provided with the circular disk body that taper apical pore and aluminium liquid are injected the hole, and the counterdie installing hole on described lower surface annular boss and the bottom plate forms interference fit;

The tapering of the taper apical pore on the tapering of described conical plug and the counterdie is consistent, and the height of conical plug is consistent with the height of taper apical pore;

Mould is a upper and lower opening in described, and lower limb has the cover body of flange, and the inner chamber of cover body lower end and counterdie upper surface annular boss forms interference fit, and lip diameter is consistent with counterdie disk body diameter;

Described moulded board down is the cover cap that a surface has trepanning, the diameter of trepanning is consistent with middle mould external diameter, be provided with two-stage Ka Tai in the inside of cover cap, the consistency of thickness of the height of first order Ka Tai and counterdie disk body, the height of second level Ka Tai equal the height of counterdie upper surface annular boss and middle mould lower flange height and, on mould, middle mould lower flange, counterdie disk body and upper surface annular boss passed through the interior two-stage Ka Tai formation interference fit of moulded board down during following moulded board was set in by the trepanning on it;

Described patrix is the disk that has arbor hole in the middle of, and the patrix lower surface is provided with circular groove, by the circular groove spiral-lock in middle mould top;

Described upper die plate is a circular discs, is provided with the circular spindle arrival slot at the lower surface of upper die plate;

Described axle is a cylinder, and the bottom is provided with the rotor punching pallet, and its top is passed in the axle arrival slot that the patrix arbor hole stretches into upper die plate.

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