CN219169551U

CN219169551U - Casting mould of cast steel stator clamping ring

Info

Publication number: CN219169551U
Application number: CN202320228807.5U
Authority: CN
Inventors: 张良红; 崔泓飞; 侯虎丹; 孙军军
Original assignee: Maanshan Huada Metallurgical & Machinery Co ltd
Current assignee: Maanshan Huada Metallurgical & Machinery Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-06-13
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a casting die of a cast steel stator pressing ring, and belongs to the field of metallurgical casting. The mold comprises an upper mold and a lower mold which are matched with each other, wherein an upper mold core is arranged on the inner side of the upper mold, a lower mold core matched with the upper mold core is arranged on the inner side of the lower mold, and a plurality of inner pouring channels penetrating through the upper mold are arranged on the upper mold core and the lower mold core; the outside of going up the mould is equipped with a plurality of riser mounting holes of arranging along circumference, the interval is provided with a plurality of necking down riser mounting holes around the riser mounting hole, necking down riser mounting hole's diameter is greater than the diameter of riser mounting hole. The utility model changes the structure of the core casting mould and can prepare the high-quality core for casting the stator pressing ring.

Description

Casting mould of cast steel stator clamping ring

Technical Field

The utility model belongs to the field of metallurgical casting, and particularly relates to a casting die of a cast steel stator pressing ring.

Background

The motor stator clamping ring is an auxiliary device used for a motor and used for fixing two ends of the motor stator, and is widely used in the field of motors, and is generally a steel casting. The stator pressing ring plays a very important role in the motor, so that the quality of a product is strictly controlled during production and processing, and quality detection is required after the stator pressing ring is processed, so that the qualification of the product is ensured.

At present, the existing stator pressing ring is generally formed by stamping or casting, wherein the stator pressing ring cast by stamping is subjected to larger external force in the stamping process, so that the quality of the stator pressing ring is affected to a certain extent, and problems of deformation, internal cracking and the like occur, and therefore, many existing factories can use casting for manufacturing the stator pressing ring.

The stator clamping ring is cast by casting, the mold is needed, but the use times of the mold are limited, and the mold cannot be used continuously after being cast for many times, so that the mold core produced by sand casting is used instead of the mold in the prior art. Sand casting refers to a casting process that produces castings in sand molds. Steel, iron and most nonferrous alloy castings are obtained by sand casting methods. Because the molding materials used for sand casting are cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould is suitable for single-piece production, batch production and mass production of castings, thereby saving a large amount of cost.

However, in the prior art, when the core is manufactured, the cast core is easily deformed due to the structure of the manufacturing mold and the matching process, shrinkage holes are generated in the cast core, and thus the cast is affected. At present, no casting mold which can well solve the problems and is specially used for preparing a core for casting a stator clamping ring exists in the prior art.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem that the quality of a prepared core is not ideal enough in a casting mould for preparing the core for casting the stator pressing ring in the prior art, the utility model provides the casting mould for casting the stator pressing ring, and the structure of the casting mould for casting the stator pressing ring can be changed by considering the quality problem possibly occurring in the preparation process of the core, so that the high-quality core for casting the stator pressing ring can be prepared.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The casting die of the cast steel stator pressing ring comprises an upper die and a lower die which are matched with each other, wherein an upper die core is arranged on the inner side of the upper die, a lower die core matched with the upper die core is arranged on the inner side of the lower die, and a plurality of inner runners penetrating through the upper die are arranged on the upper die core and the lower die core; the outside of going up the mould is equipped with a plurality of riser mounting holes of arranging along circumference, the interval is provided with a plurality of necking down riser mounting holes around the riser mounting hole, necking down riser mounting hole's diameter is greater than the diameter of riser mounting hole.

As a further improvement of the technical scheme, a common riser is arranged on the riser mounting hole, and a necking riser with the diameter and the height larger than those of the common riser is arranged on the necking riser mounting hole.

As a further improvement of the technical scheme, the common riser is provided with an exhaust hole.

As a further improvement of the technical scheme, the upper part of the necking riser is provided with a heating cover.

As a further improvement of the technical scheme, the heating cover is provided with a layer of heat-insulating covering agent.

As a further improvement of the technical scheme, the upper die and the lower die are provided with a positioning block and a positioning seat which are matched with each other.

As a further improvement of the technical scheme, a plurality of straight pouring channels penetrating through the upper die are arranged on the upper die at intervals on the outer side of the upper die core.

As a further improvement of the technical scheme, a plurality of straight pouring channels penetrating through the lower die are arranged on the lower die at intervals on the outer side of the lower die core.

As a further improvement of the technical scheme, the inner pouring gate and the straight pouring gate are ceramic pipes.

As a further improvement of the technical scheme, the side edges of the upper mold core and the lower mold core are provided with chill.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the casting mould of the cast steel stator pressing ring, the inner pouring channels are arranged on the upper mould core and the lower mould core at intervals, and the straight pouring channels are arranged on the outer side, so that casting can be uniformly carried out from a plurality of positions when the mould core is prepared, each position of the prepared mould core can be uniformly and simultaneously molded, shrinkage cavities and deformation are not easy to occur, particularly, when the mould is cast, a plurality of common riser heads are uniformly arranged on the outer side of the upper mould in the circumferential direction, and a plurality of necking riser heads with larger sizes are arranged on the periphery at intervals, and through the arrangement mode, the molding of the mould core can be greatly compensated, the conditions of shrinkage cavities, shrinkage looseness and the like of the mould core are prevented, and the molding quality of the mould core is improved;

(2) According to the casting mould of the cast steel stator pressing ring, the exhaust hole is formed in the common riser, the heating cover is arranged at the upper part of the necking riser, and the heat-insulating covering agent is arranged on the heating cover, so that the forming process of the core is smoother, the quality of the formed core is improved, and a casting of the stator pressing ring with high quality is finally prepared through the core;

(3) According to the casting mould of the cast steel stator pressing ring, the upper mould and the lower mould are provided with the positioning blocks and the positioning seats which are matched with each other, so that the upper mould and the lower mould can be rapidly and accurately closed, and the mould core is prevented from being deformed due to the influence of the closing precision;

(4) According to the casting mould of the cast steel stator pressing ring, the chill is arranged on the side edges of the upper mould core and the lower mould core, so that the local cooling speed of a specific position of the mould core can be increased during casting, the mold core is matched with a riser, and the solidification sequence of each position of the mould core is controlled, so that the high-quality mould core is obtained.

Drawings

FIG. 1 is a schematic diagram of the structure of an upper die;

FIG. 2 is a schematic view of the structure of the outer side of the upper die;

FIG. 3 is a schematic view of the structure of the lower die;

FIG. 4 is a schematic illustration of the structure of a core being prepared;

FIG. 5 is a schematic structural view of a prepared stator clamping ring;

in the figure: 1. an upper die; 11. an upper mold core; 12. riser mounting holes; 13. necking riser mounting holes; 2. a lower die; 21. a lower mold core; 3. an inner runner; 4. a positioning block; 5. a positioning seat; 6. a sprue; 7. and (3) cooling iron.

Detailed Description

Exemplary embodiments of the present utility model are described in detail below. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the utility model, it is to be understood that other embodiments may be realized and that various changes to the utility model may be made without departing from the spirit and scope of the utility model. The following more detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely illustrative and not limiting of the utility model's features and characteristics in order to set forth the best mode of carrying out the utility model and to sufficiently enable those skilled in the art to practice the utility model. Accordingly, the scope of the utility model is limited only by the attached claims.

Example 1

The casting mould of cast steel stator pressing ring is used in metallurgical casting to prepare the core for casting stator pressing ring, the structure of the core is shown in figure 4, and the structure of the prepared stator pressing ring is shown in figure 5, so that the cost for manufacturing the stator pressing ring is saved, and the specific structure and technical effects of the mould are described in detail below.

As shown in fig. 1 to 3, the casting mold comprises an upper mold 1 and a lower mold 2 which are matched with each other, an upper mold core 11 is arranged on the inner side of the upper mold 1, a lower mold core 21 matched with the upper mold core 11 is arranged on the inner side of the lower mold 2, and the specific structures of the upper mold core 11 and the lower mold core 21 are as shown in fig. 1 and 2 and correspond to the structures of cores to be prepared. Wherein, the upper mold core 11 and the lower mold core 21 are respectively provided with a plurality of inner runners 3 penetrating through the upper mold 1, and the inner runners 3 are distributed along the circumferential direction of the upper mold core 11 and the lower mold core 21. Meanwhile, a plurality of straight pouring channels 6 penetrating through the upper die 1 are arranged on the upper die 1 outside the upper die core 11 at intervals, a plurality of straight pouring channels 6 penetrating through the lower die 2 are also arranged on the lower die 2 outside the lower die core 21 at intervals, and the inner pouring channels 3 and the straight pouring channels 6 are made of ceramic materials. Therefore, when the mold core is prepared, casting can be uniformly carried out from a plurality of positions, and each position of the prepared mold core can be uniformly and simultaneously molded, so that shrinkage cavity and deformation are not easy to occur.

In addition, the outside of the upper die 1 is provided with a plurality of riser mounting holes 12 which are distributed along the circumferential direction, a plurality of necking riser mounting holes 13 are arranged around the riser mounting holes 12 at intervals, and the diameter of the necking riser mounting holes 13 is larger than that of the riser mounting holes 12. The common riser is arranged on the riser mounting hole 12, and the necking riser with the diameter and the height larger than those of the common riser is arranged on the necking riser mounting hole 13. During casting, through the riser arrangement mode, the molding of the core can be greatly compensated during casting, the conditions of shrinkage cavity, shrinkage porosity and the like of the core are prevented, and the molding quality of the core is improved.

It should be noted that the common riser of this embodiment is provided with an exhaust hole, the upper part of the necking riser is provided with a heating cover, and the heating cover is provided with a layer of heat-insulating covering agent. Through the improvement of the riser structure, the molding process of the mold core can be smoother, the quality of the molded mold core is improved, and therefore the high-quality casting of the stator pressing ring is finally prepared through the mold core.

When the mold is used, the mold cores of the upper mold and the lower mold are aligned and closed, and then the mold cores are put into a sand box for injection casting, and finally the mold cores are formed. Therefore, the accuracy of the clamping of the upper and lower molds is important for the quality of the finally formed cores. In view of this, in this embodiment, the positioning blocks 4 and the positioning seats 5 are provided on the upper die 1 and the lower die 2, and the positioning blocks 4 and the positioning seats 5 are provided on both sides of the upper die 1 and the lower die 2, respectively, corresponding to the dimensional structures and positions of the positioning blocks 4 and the positioning seats 5 of the other half of the dies, so that the upper die and the lower die can rapidly and accurately complete die assembly, and the die assembly accuracy is prevented from being affected to cause deformation of the core.

In addition, the side edges of the upper mold core 11 and the lower mold core 21 are provided with the chill 7, so that the local cooling speed of a specific position of the mold core can be increased during casting, and the mold core can be matched with a riser, so that the solidification sequence of each position of the mold core can be controlled, and the high-quality mold core can be obtained.

In summary, according to the casting mold for the cast steel stator pressing ring of the embodiment, the structure of the mold core casting mold is changed in consideration of the possible quality problem in the core preparation process, so that the high-quality core for casting the stator pressing ring can be prepared.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims

1. The utility model provides a cast steel stator clamping ring's casting mould, includes upper mould (1) and lower mould (2) that mutually support, the inboard of upper mould (1) has upper mould core (11), the inboard of lower mould (2) has lower mould core (21) with upper mould core (11) assorted, its characterized in that: a plurality of inner runners (3) penetrating through the upper die (1) are arranged on the upper die core (11) and the lower die core (21); the outside of last mould (1) is equipped with a plurality of riser mounting holes (12) of arranging along circumference, the interval is provided with a plurality of necking down riser mounting holes (13) around riser mounting hole (12), the diameter of necking down riser mounting holes (13) is greater than the diameter of riser mounting hole (12).

2. The casting mold of a cast steel stator clamping ring as claimed in claim 1, wherein: and a common riser is arranged on the riser mounting hole (12), and a necking riser with the diameter and the height larger than those of the common riser is arranged on the necking riser mounting hole (13).

3. The casting mold of a cast steel stator clamping ring as claimed in claim 2, wherein: and the common riser is provided with an exhaust hole.

4. A casting mould for cast steel stator clamping rings as claimed in claim 3 wherein: and a heating cover is arranged at the upper part of the necking riser.

5. The casting mold of a cast steel stator clamping ring as claimed in claim 4, wherein: the heating cover is provided with a layer of heat-insulating covering agent.

6. The casting mold of a cast steel stator clamping ring as claimed in claim 1, wherein: the upper die (1) and the lower die (2) are provided with a positioning block (4) and a positioning seat (5) which are matched with each other.

7. The casting mold of a cast steel stator clamping ring as claimed in claim 1, wherein: and a plurality of straight pouring channels (6) penetrating through the upper die (1) are arranged on the upper die (1) at intervals outside the upper die core (11).

8. The casting mold of a cast steel stator clamping ring as claimed in claim 1, wherein: and a plurality of straight pouring channels (6) penetrating through the lower die (2) are arranged on the lower die (2) at intervals outside the lower die core (21).

9. The casting mold of a cast steel stator clamping ring as claimed in claim 7, wherein: the inner pouring gate (3) and the straight pouring gate (6) are ceramic pipes.

10. Casting mould for cast steel stator clamping ring according to any of claims 1-9, characterized in that: and chill (7) is arranged on the side edges of the upper mold core (11) and the lower mold core (21).