CN203574506U - Expander used for manufacturing cast-aluminum rotor - Google Patents

Abstract

The utility model relates to an expander used for manufacturing a cast-aluminum rotor. In order to effectively guarantee the coaxiality of shaft holes of the cast-aluminum rotor in the manufacturing process, the expander used for manufacturing the cast-aluminum rotor is composed of three parts including an expansion core, an expansion sleeve and a washer. Rotor sheets are installed on the expansion sleeve in an overlapped manner and subjected to downward acting forces to drive the expansion sleeve to move downward along the conical surface of the expansion core, and rotor sheet holes are expanded to be flush with one another through the expansion sleeve. The expander, provided by the utility model, for the cast-aluminum rotor can guarantee the coaxiality of the shaft holes of the cast-aluminum rotor, thereby improving product quality and effectively lowering a rejection rate. The expander used for manufacturing the cast-aluminum rotor is simple in structure, low in cost, reasonable in process, and capable of improving production efficiency substantially.

Description

A kind of expander of cast-aluminum rotor manufacture use

Technical field

The utility model relates to a kind of expander of cast-aluminum rotor manufacture use.

Background technology

In middle and small motor is produced, cast-aluminum rotor is indispensable frock in producing, and the axis hole quality of cast-aluminum rotor directly affects the stability of motor operation.If in manufacturing the process of cast-aluminum rotor, the axis hole of rotor punching can not align, the axiality of the cast-aluminum rotor axis hole of manufacturing just can not be guaranteed, and after loading onto true axle, will affect and the coordinating of true axle, and motor performance is caused to great impact.

Summary of the invention

For making cast-aluminum rotor can effectively guarantee the axiality of axis hole in manufacture process, the utility model provides a kind of expander of cast-aluminum rotor manufacture use.

The technical solution adopted in the utility model is: a kind of cast-aluminum rotor manufacture expander, is characterized in that: this expander is comprised of the core that rises, ringfeder and packing ring three parts;

The wherein said core that rises comprises a cup dolly, fixes a vertical core bar that rises at the center of cup dolly, in the bottom near the core bar that rises, to the bar wall at the core bar middle part of rising, is provided with bulge; Described bulge is a taper platform; On the seating plane of core bar bottom peripheral edge that rises, be provided with rounded washers stopping table, the height of stopping table is consistent with washer height, and the difference in height between stopping table surface and susceptor surface forms ringfeder landing district;

Described packing ring is by three ring bodies that independently fanning strip is combined to form, and the thickness of fanning strip is consistent with the height of aforesaid stopping table;

Described ringfeder is by three cylindrical tubes that independently cambered plate is combined to form, cambered plate bottom outer wall becomes rotor punching saddle to extension, the inwall of cambered plate is provided with the inner concave consistent with bulge tapering on the aforementioned core bar that rises by middle part to bottom, when three cambered plates are combined into after cylindrical tube, in cylindrical tube bottom outer wall, form round rotor punching saddle, form the core bar bulge cavity volume that rises below in cylindrical tube inside;

The assembled state of described three parts be by packing ring by the seam cushion on base at base stopping table periphery, ringfeder is enclosed within its bottom on the core bar that rises and lives by packing ring pad, rotor punching is nestable outside at ringfeder, now packing ring is withdrawn, rise core bar and ringfeder realized fixing by cone match, when rotor punching is subject to downward pressure, by rotor punching saddle, pass to ringfeder, ringfeder can be by the top landing of ringfeder landing district to bottom.

By foregoing, describe knownly, the cast-aluminum rotor that the utility model provides can guarantee the axiality of cast-aluminum rotor axis hole with expander, has improved product quality, the rate of effectively reducing the number of rejects and seconds.This utility model is simple in structure, and cost is low, and technique is reasonable, and production efficiency significantly improves.

Accompanying drawing explanation

Fig. 1 is the axonometric drawing of core of rising.

Fig. 2 is the axonometric drawing of ringfeder.

Fig. 3 is the cutaway view of ringfeder.

Fig. 4 is the axonometric drawing of packing ring.

Fig. 5 is the cutaway view rising after core, ringfeder, packing ring, rotor punching assembling.

Fig. 6 removes the cutaway view of packing ring after rotor punching assembling.

Cutaway view when Fig. 7 is not stressed after rotor punching assembling.

Fig. 8 is the cutaway view after stressed after rotor punching assembling.

In figure, 1, base, 2, the core bar that rises, 3, bulge, 4, ringfeder landing district, 5, stopping table, 6, fanning strip, 7, cambered plate, 8, rotor punching saddle, 9, inner concave, 10, bulge cavity volume, 11, rotor punching, 12, hydraulic press, 13, mould.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described further.

A cast-aluminum rotor manufacture expander, this expander is comprised of the core that rises, ringfeder and packing ring three parts.Core, ringfeder, packing ring and the concrete assembled state thereof of rising will be mentioned in detail in following content.

As shown in Figure 1, the core that rises comprises a cup dolly 1, fixes a vertical core bar 2 that rises at the center of cup dolly 1, in the bottom near the core bar 2 that rises, to the bar wall at core bar 2 middle parts of rising, is provided with bulge 3

As shown in Figure 1, bulge 3 is a taper platform.

As shown in Figure 1, on 1 of the base of core bar 2 bottom peripheral edge that rise, be provided with rounded washers stopping table 5, the base plane of stopping table 5 peripheries is in order to install packing ring, after packing ring is withdrawn, difference in height between stopping table 5 planes and base 1 plane forms ringfeder landing district 4, and the effect in ringfeder landing district 4 will be mentioned in content described later.

As shown in Figure 2, packing ring is by three ring bodies that independently fanning strip 6 is combined to form, and the thickness of fanning strip 6 is consistent with the height of aforesaid stopping table 5;

As shown in Figure 3, ringfeder is by three cylindrical tubes that independently cambered plate 7 is combined to form, and cambered plate 7 bottom outer wall become rotor punching saddle 8 to extension.

As shown in Figure 4, the inwall of cambered plate 7 is provided with the inner concave 9 consistent with bulge tapering on the aforementioned core bar that rises by middle part to bottom, when three cambered plates are combined into after cylindrical tube, in cylindrical tube bottom outer wall, form round rotor punching saddle 8, form the core bar bulge cavity volume 10 that rises below in cylindrical tube inside.

Utilize the core that rises, ringfeder, the concrete use of packing ring when carrying out cast-aluminum rotor manufacture of above-mentioned introduction as follows:

As shown in Figure 5, three fanning strips 6 of packing ring are padded at base stopping table periphery by the stopping table 5 on base, the thickness of fanning strip 6 is consistent with the height of stopping table 5, now, aforesaid ringfeder landing district 4 is filled by packing ring, three arcs 7 of ringfeder are enclosed within its bottom on the core bar 2 that rises and live by packing ring pad, and rotor punching 11 is nestable outside at ringfeder, complete the assembling of the core that rises, ringfeder, packing ring and rotor punching.

As shown in Figure 6, after completing rotor punching 11 closed assemblies, packing ring 11 is withdrawn, and now packing ring 11 is withdrawn stopping table 5 and the formation of the difference in height between the base 1 surface ringfeder landing district 4 of rear formation, and the core 2 that rises is realized fixing with the arc 7 of ringfeder by cone match.Now, because the uneven of rotor punching 11 plays inside pressure to arc 7, the own wt of rotor punching is not enough to impel arc 7 to slide to bottom by the top in ringfeder landing district 4, may have minute movement, but be not enough to arc 7 to strut.

As shown in Figure 7, the good rotor punching 11 of closed assembly removing after packing ring 11 is sent in mould 13 together with the core that rises, ringfeder, and under the effect of hydraulic press 12, rotor punching 11 is applied to downward pressure.The pressure that applies position, direction and ringfeder of rotor punching pressure applies position and direction as shown by the arrows in Figure 7.When rotor punching is subject to downward pressure and passes to ringfeder by rotor punching saddle 8, ringfeder will be by the 4 downward landings in top of ringfeder landing district.

As shown in Figure 8, when ringfeder is by the 4 top landings of ringfeder landing district during to bottom, rotor punching saddle 8 and base 1 Surface Contact on ringfeder, now under the effect of the bulge 3 of the arc 7 of ringfeder on the core bar that rises, strut and risen together in rotor punching hole, and then carry out die casting processing, so can guarantee the axiality of cast-aluminum rotor axis hole.

Claims (1)

1. a cast-aluminum rotor manufacture expander, is characterized in that: this expander is comprised of the core that rises, ringfeder and packing ring three parts;

The wherein said core that rises comprises a cup dolly, fixes a vertical core bar that rises at the center of cup dolly, in the bottom near the core bar that rises, to the bar wall at the core bar middle part of rising, is provided with bulge; Described bulge is a taper platform; On the seating plane of core bar bottom peripheral edge that rises, be provided with rounded washers stopping table, the height of stopping table is consistent with washer height, and the difference in height between stopping table surface and susceptor surface forms ringfeder landing district;

Described packing ring is by three ring bodies that independently fanning strip is combined to form, and the thickness of fanning strip is consistent with the height of aforesaid stopping table;

Described ringfeder is by three cylindrical tubes that independently cambered plate is combined to form, cambered plate bottom outer wall becomes rotor punching saddle to extension, the inwall of cambered plate is provided with the inner concave consistent with bulge tapering on the aforementioned core bar that rises by middle part to bottom, when three cambered plates are combined into after cylindrical tube, in cylindrical tube bottom outer wall, form round rotor punching saddle, form the core bar bulge cavity volume that rises below in cylindrical tube inside;

The assembled state of described three parts be by packing ring by the seam cushion on base at base stopping table periphery, ringfeder is enclosed within its bottom on the core bar that rises and lives by packing ring pad, rotor punching is nestable outside at ringfeder, now packing ring is withdrawn, rise core bar and ringfeder realized fixing by cone match, when rotor punching is subject to downward pressure, by rotor punching saddle, pass to ringfeder, ringfeder can be by the top landing of ringfeder landing district to bottom.

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