阅读说明：本技术 一种电机座铸件支撑浇注装置及方法 (Motor base casting supporting and pouring device and method ) 是由 曹黎明 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种电机座铸件支撑浇注装置及方法,包括有电机座砂型和调节支撑装置；所述的电机座砂型包括有上砂芯、下砂芯、两块窄砂壳和两块宽砂壳,电机座砂型的前后左右四个面呈上大下小带斜度的平面,在上砂芯与下砂芯之间设有通向两块窄砂壳、两块宽砂壳的流道；所述的调节支撑装置包括有底座,在底座上滑动安装有四个分别与两块窄砂壳和两块宽砂壳相对应的调节支撑块,所述的四个调节支撑块的相对的面分别做成和电机座砂型外周相吻合的斜度,所述的电机座砂型位于调节支撑装置的内侧。本发明减少了砂型材料的使用,直接降低了材料成本,达到了节能环保的目的；本发明大幅缩短了铸件生产环节,减少了人工和场地的使用,降低了生产成本。(The invention discloses a motor base casting support pouring device and a method, comprising a motor base sand mold and an adjusting and supporting device; the motor base sand mold comprises an upper sand core, a lower sand core, two narrow sand shells and two wide sand shells, the front, back, left and right surfaces of the motor base sand mold are planes with slopes of large upper parts and small lower parts, and a flow channel leading to the two narrow sand shells and the two wide sand shells is arranged between the upper sand core and the lower sand core; the adjusting and supporting device comprises a base, four adjusting and supporting blocks which correspond to two narrow sand shells and two wide sand shells respectively are arranged on the base in a sliding mode, the opposite surfaces of the four adjusting and supporting blocks are made into slopes which are matched with the periphery of a motor base sand mold respectively, and the motor base sand mold is located on the inner side of the adjusting and supporting device. The invention reduces the use of sand mould materials, directly reduces the material cost and achieves the aims of energy conservation and environmental protection; the invention greatly shortens the production link of the casting, reduces the use of manpower and field and reduces the production cost.)

1. The utility model provides a motor cabinet foundry goods supports pouring device which characterized in that: comprises a motor base sand mould and an adjusting and supporting device;

the motor base sand mold comprises an upper sand core, a lower sand core, two narrow sand shells and two wide sand shells, the two narrow sand shells and the two wide sand shells are combined together to form a casting cavity, the front, back, left and right surfaces of the motor base sand mold are planes with slopes of large upper parts and small lower parts, the upper sand core and the lower sand core are respectively positioned at the upper part and the lower part of the casting cavity, a pouring gate is arranged at the top of the upper sand core, and a flow passage leading to the two narrow sand shells and the two wide sand shells is arranged between the upper sand core and the lower sand core;

the adjusting and supporting device comprises a base, four adjusting and supporting blocks which correspond to two narrow sand shells and two wide sand shells are slidably mounted on the base and are fixed through fasteners respectively, the opposite surfaces of the four adjusting and supporting blocks are made into slopes which are matched with the periphery of a motor base sand mold respectively, the motor base sand mold is located on the inner side of the adjusting and supporting device, and the four adjusting and supporting blocks are adjusted to tightly squeeze the four surfaces of the motor base sand mold.

2. The motor base casting supporting and pouring device of claim 1, wherein: the outer sides of the two narrow sand shells and the two wide sand shells are both provided with reinforcing ribs.

3. The motor base casting supporting and pouring device of claim 1, wherein: the upper sand core comprises an outer circular core and an inner circular core which are concentrically arranged, a connecting plate is arranged between the outer circular core and the inner circular core, a bottom plate is arranged at the bottom of the outer circular core, a plurality of positioning columns are arranged on the bottom plate, and the lower end of the inner circular core slightly extends out of the bottom plate;

the lower sand core is of a circular hollow structure, a top plate is arranged on the lower sand core, a positioning groove corresponding to the positioning column on the bottom plate of the upper sand core is arranged on the top plate, a groove matched with the bottom end of the inner round core of the upper sand core is arranged in the center of the top plate of the lower sand core, the flow channel is positioned between the bottom plate of the upper sand core and the top plate of the lower sand core, and the flow channel is communicated with the bottom of the inner round core of the upper sand core.

4. The motor base casting supporting and pouring device is characterized in that the adjustable supporting blocks are L-shaped plates, the inclination of vertical plates of L-shaped plates is matched with the inclination of four surfaces of the outer periphery of a sand mold of the motor base respectively, sliding grooves corresponding to the four adjustable supporting blocks are formed in the base respectively, bosses are arranged below horizontal plates of L-shaped plates and slide in the sliding grooves, corresponding fixing mounting holes are formed in the horizontal plates of L-shaped plates and the base respectively and are fixed in the fixing mounting holes through fasteners.

5. The motor base casting supporting and pouring device is characterized in that an arc-shaped connecting plate is further connected between the vertical plate and the horizontal plate of the L-shaped plate.

6. A motor cabinet casting supporting and pouring method is characterized in that: the method comprises the following specific steps:

combining the upper sand core, the lower sand core, the two narrow sand shells and the two wide sand shells to form a semi-closed pouring system and a casting cavity;

binding a groove reserved outside the motor base sand mold by using an iron wire or winding the groove along the periphery of the motor base sand mold by using an adhesive tape, restraining the motor base sand mold into a stable combination body, wherein the front, the rear, the left and the right surfaces of the combined motor base sand mold are planes with slopes of large upper parts and small lower parts;

the four adjustable supporting blocks are adjusted and fixed according to the fact that a motor base sand mold to be poured is placed into the adjusting and supporting device, and the inclined plane of the periphery of the motor base sand mold is matched with the inclined plane of the adjusting and supporting device, so that the motor base sand mold is placed more and more tightly, all surfaces of the motor base sand mold are tightly squeezed, and the stress of the motor base sand mold is uniform;

during pouring, metal liquid is poured from a pouring gate at the top of the inner circle core of the upper sand core, the strength of the sand mold changes along with the pouring of the metal liquid, a micro-sinking process is carried out on the motor base sand mold and the casting under the action of the weight of the metal liquid, and the casting is finally solidified and molded;

and after the casting is solidified and formed, taking out the casting and the motor base sand mold together, cleaning the adjusting and supporting device, putting a group of new sand molds, and pouring.

Technical Field

The invention relates to the technical field of mold manufacturing and casting, in particular to a motor base casting supporting and pouring device and method.

Background

In the casting field, a motor base casting (also called a motor shell casting) is a product with a large demand, and a shell mold process is widely applied to the production of the motor base casting with accurate geometric precision and good appearance. The shell mold process is a casting method which comprises the steps of preparing sand shell sand cores by using a cold core box process, a warm core box process, a hot core box process and the like, combining the sand shell sand cores into a sand mold, pouring molten metal into a cavity of the sand mold, and cooling to obtain a casting. To ensure that the sand mold can withstand the casting pressure of the molten metal, the sand shell is usually made very thick, or the sand mold is cast by burying it in sand or iron shot.

The thicker the shell is, the higher the cost of production and the more volatile material there is in the sand which, when poured, affects the appearance and inherent quality of the casting. When the sand mold is buried and pressed by sand for pouring, the process is more, the production cost is high, and the poured shell molding sand and the buried and pressed sand can not be separated, so that the environmental pollution can be caused. When the sand mold is buried and pressed by iron shots for pouring, the shell molding sand and the iron shots need to be separated, huge equipment is needed, and the production cost is high.

Disclosure of Invention

The invention aims to make up for the defects of the prior art and provides a motor base casting supporting and pouring device and a motor base casting supporting and pouring method.

The invention is realized by the following technical scheme:

a motor base casting supporting and pouring device comprises a motor base sand mold and an adjusting and supporting device;

the motor base sand mold comprises an upper sand core, a lower sand core, two narrow sand shells and two wide sand shells, the two narrow sand shells and the two wide sand shells are combined together to form a casting cavity, the front, back, left and right surfaces of the motor base sand mold are planes with slopes of large upper parts and small lower parts, the upper sand core and the lower sand core are respectively positioned at the upper part and the lower part of the casting cavity, a pouring gate is arranged at the top of the upper sand core, and a flow passage leading to the two narrow sand shells and the two wide sand shells is arranged between the upper sand core and the lower sand core;

the adjusting and supporting device comprises a base, four adjusting and supporting blocks which correspond to two narrow sand shells and two wide sand shells are slidably mounted on the base and are fixed through fasteners respectively, the opposite surfaces of the four adjusting and supporting blocks are made into slopes which are matched with the periphery of a motor base sand mold respectively, the motor base sand mold is located on the inner side of the adjusting and supporting device, and the four adjusting and supporting blocks are adjusted to tightly squeeze the four surfaces of the motor base sand mold.

The outer sides of the two narrow sand shells and the two wide sand shells are both provided with reinforcing ribs.

The upper sand core comprises an outer circular core and an inner circular core which are concentrically arranged, a connecting plate is arranged between the outer circular core and the inner circular core, a bottom plate is arranged at the bottom of the outer circular core, a plurality of positioning columns are arranged on the bottom plate, and the lower end of the inner circular core slightly extends out of the bottom plate;

the lower sand core is of a circular hollow structure, a top plate is arranged on the lower sand core, a positioning groove corresponding to the positioning column on the bottom plate of the upper sand core is arranged on the top plate, a groove matched with the bottom end of the inner round core of the upper sand core is arranged in the center of the top plate of the lower sand core, the flow channel is positioned between the bottom plate of the upper sand core and the top plate of the lower sand core, and the flow channel is communicated with the bottom of the inner round core of the upper sand core.

The adjustable supporting blocks are L type plates, the inclination of the vertical plate of the L type plate is matched with the inclination of the four surfaces of the outer periphery of the sand mold of the motor base respectively, sliding grooves corresponding to the four adjustable supporting blocks are formed in the base respectively, a boss is arranged below the horizontal plate of the L type plate and slides in the sliding grooves, and corresponding fixed mounting holes are formed in the horizontal plate of the L type plate and the base respectively and are fixed in the fixed mounting holes through fasteners.

An arc connecting plate is connected between the vertical plate and the horizontal plate of the L-shaped plate.

A supporting and pouring method for a motor base casting comprises the following specific steps:

combining the upper sand core, the lower sand core, the two narrow sand shells and the two wide sand shells to form a semi-closed pouring system and a casting cavity;

binding a groove reserved outside the motor base sand mold by using an iron wire or winding the groove along the periphery of the motor base sand mold by using an adhesive tape, restraining the motor base sand mold into a stable combination body, wherein the front, the rear, the left and the right surfaces of the combined motor base sand mold are planes with slopes of large upper parts and small lower parts;

the four adjustable supporting blocks are adjusted and fixed according to the fact that a motor base sand mold to be poured is placed into the adjusting and supporting device, and the inclined plane of the periphery of the motor base sand mold is matched with the inclined plane of the adjusting and supporting device, so that the motor base sand mold is placed more and more tightly, all surfaces of the motor base sand mold are tightly squeezed, the stress of the motor base sand mold is uniform, and the geometric accuracy of a sand mold cavity is guaranteed to the maximum extent;

during pouring, metal liquid is poured from a pouring gate at the top of the inner circle core of the upper sand core, the strength of the sand mold changes along with the pouring of the metal liquid, a micro-sinking process is carried out on the motor base sand mold and the casting under the action of the weight of the metal liquid, and the casting is finally solidified and molded;

and after the casting is solidified and formed, taking out the casting and the motor base sand mold together, cleaning the adjusting and supporting device, putting a group of new sand molds, and pouring.

The combination precision of the sand mold is ensured by the positioning groove arranged on the sand shell sand core, the positioning block and the contact position of the sand shell sand core.

The sand mold can be manufactured by a hot core box process, a cold core box or a warm core box process and other methods.

The position of the adjusting support block can be adjusted along the groove of the base so as to adapt to the fixed support of sand moulds of different models.

In order to improve the universality of the adjusting and supporting device, the outer surfaces of the sand moulds of different models only need to be made into the same inclination as the adjustable supporting blocks, and the 4 adjustable supporting blocks can be adjusted in position along the groove of the base so as to adapt to the fixed support of the sand moulds of different models.

The invention has the advantages that: 1. the invention reduces the use of sand mould materials, directly reduces the material cost and achieves the aims of energy conservation and environmental protection; 2. the invention greatly shortens the production link of the casting, omits the procedures of gluing and bonding the sand mould, burying and pressing and the like, reduces the manual use, reduces the use of production fields, avoids the influence of human factors on the quality of the casting to the maximum extent, and also reduces the production cost; 3. the position of the adjusting and supporting device is fixed, so that an automatic assembly line can be formed, and automatic production of castings is realized; 4. the invention only has one sand mold material in the production field, which is beneficial to recycling the sand mold material and further achieves the purposes of energy saving and environmental protection.

Drawings

FIG. 1 is a schematic view of the structure of a cast product after pouring is completed.

FIG. 2 is a schematic diagram of the internal structure of the cast product after the pouring of the invention.

Fig. 3 is a schematic diagram of a sand mold structure of the motor base.

Fig. 4 is an exploded structural view of a motor base sand mold of the present invention.

Fig. 5 is a schematic diagram of the internal structure of the motor base sand mold of the present invention.

Fig. 6 is a schematic structural view of the adjusting and supporting device of the present invention.

FIG. 7 is a schematic view of the structure of the present invention.

Fig. 8 is an internal cross-sectional view of the present invention.

Detailed Description

As shown in fig. 7 and 8, the motor base casting supporting and pouring device comprises a motor base sand mold 1 and an adjusting and supporting device;

as shown in fig. 3, 4 and 5, the motor base sand mold comprises an upper sand core 2, a lower sand core 3, two narrow sand shells 4 and two wide sand shells 5, the two narrow sand shells 4 and the two wide sand shells 5 are combined together to form a casting cavity, the front, back, left and right surfaces of the motor base sand mold 1 are planes with slopes of large upper parts and small lower parts, the upper sand core 2 and the lower sand core 3 are respectively positioned at the upper part and the lower part of the casting cavity, a pouring gate is arranged at the top of the upper sand core 2, and a pouring gate cup of the sand mold can be integrated with the upper sand core or can be separately prepared and installed on the upper sand core. A flow passage 6 leading to the two narrow sand shells 4 and the two wide sand shells 5 is arranged between the upper sand core 2 and the lower sand core 3;

as shown in fig. 6, the adjusting and supporting device comprises a base 7, four adjusting and supporting blocks 8 corresponding to two narrow sand shells 4 and two wide sand shells 5 are slidably mounted on the base 7, the four adjusting and supporting blocks 8 are fixed by fasteners 17, the opposite surfaces of the four adjusting and supporting blocks 8 are made into slopes matched with the periphery of the motor base sand mold 1, the motor base sand mold 1 is located on the inner side of the adjusting and supporting device, and the four adjusting and supporting blocks 8 are tightly squeezed on the four surfaces of the motor base sand mold 1 by adjusting the four adjusting and supporting blocks 8.

The outer sides of the two narrow sand shells 4 and the two wide sand shells 5 are both provided with a structure with reinforcing ribs 9. The outer sides of the four sand shells can also be made into a flat structure without reinforcing ribs.

The upper sand core 2 comprises an outer circular core and an inner circular core which are concentrically arranged, a connecting plate is arranged between the outer circular core and the inner circular core, a bottom plate is arranged at the bottom of the outer circular core, a plurality of positioning columns are arranged on the bottom plate, and the lower end of the inner circular core slightly extends out of the bottom plate;

the lower sand core 3 is of a circular hollow structure, a top plate 10 is arranged on the lower sand core 3, a positioning groove 11 corresponding to a positioning column on the bottom plate of the upper sand core is arranged on the top plate 10, a groove 12 matched with the bottom end of the inner circle core of the upper sand core is arranged at the center position of the top plate of the lower sand core 3, the flow channel 6 is positioned between the bottom plate of the upper sand core and the top plate of the lower sand core, and the flow channel 6 is communicated with the bottom of the inner circle core of the upper sand core 2.

The adjustable supporting blocks 8 are L-shaped plates, the inclination of the vertical plate of the L-shaped plate is matched with the inclination of the four surfaces of the outer periphery of the sand mold of the motor base respectively, sliding grooves 13 corresponding to the four adjustable supporting blocks 8 are formed in the base 7 respectively, a boss is arranged below the horizontal plate of the L-shaped plate and slides in the sliding grooves 13, corresponding fixed mounting holes 14 are formed in the horizontal plate of the L-shaped plate and the base respectively, and the horizontal plate and the base are fixed in the fixed mounting holes 14 through fasteners 17.

An arc connecting plate 15 is connected between the vertical plate and the horizontal plate of the L-shaped plate.

A supporting and pouring method for a motor base casting comprises the following specific steps:

combining the upper sand core 2, the lower sand core 3, the two narrow sand shells 4 and the two wide sand shells 5 to form a semi-closed pouring system and a casting cavity;

binding a groove reserved outside the motor base sand mold 1 by using an iron wire or winding the groove along the periphery of the motor base sand mold by using an adhesive tape, restraining the motor base sand mold into a stable combination body, wherein the front, the rear, the left and the right surfaces of the combined motor base sand mold are planes with slopes of large upper parts and small lower parts;

the four adjustable supporting blocks 8 are adjusted and fixed by placing the motor base sand mold 1 to be poured into the adjusting and supporting device, and because the inclined plane of the periphery of the motor base sand mold 1 is matched with the inclined plane of the adjusting and supporting device, the motor base sand mold 1 is placed more and more tightly, all the surfaces of the motor base sand mold are tightly squeezed, the stress of the motor base sand mold is uniform, and the geometric accuracy of a sand mold cavity is ensured to the maximum extent;

during pouring, molten metal is poured from a pouring gate at the top of the inner circular core of the upper sand core, the strength of the sand mold changes along with the pouring of the molten metal, a micro-sinking process is carried out on the motor base sand mold and the casting under the action of the weight of the molten metal, and the casting 16 is finally solidified and molded;

after the casting 16 is solidified and formed, the casting and the motor base sand mold are taken out together, the adjusting and supporting device is cleaned, a group of new sand molds are placed, and then pouring is carried out. The cast product after pouring is shown in fig. 1 and 2.

In order to reduce the use of sand mould materials to the maximum extent and enable the sand mould to have good air permeability, the upper sand core and the lower sand core are designed to be hollow, and the outer sides of the two narrow sand shells and the two wide sand shells are designed to be structures with reinforcing ribs.

The adjusting and supporting device is designed for the sand mould to bear the pouring of molten metal and keep the geometric accuracy in the pouring process. The adjusting and supporting device consists of 4 adjustable supporting blocks, a base, a fastener and the like. The opposite surfaces of the 4 adjustable supporting blocks are made into a slope matched with the periphery of the sand mould. The adjustable supporting block can be adjusted in position along the groove of the base so as to adapt to the fixed support of sand moulds of different models. After adjusting and fixing 4 adjustable supporting blocks according to the sand mould to be poured, putting the sand mould into an adjusting and supporting device. Because of the inclined plane of sand mould periphery is coincide with the inclined plane of adjusting strutting arrangement, the sand mould is put into and is more and more tight, just so can closely crowd each combination face of sand mould tightly to the sand mould atress is even, and the geometric accuracy of sand mould die cavity obtains guaranteeing to the utmost.

During pouring, the strength of the sand mold changes along with pouring of molten metal, a micro-sinking process is generated between the sand mold and the casting under the action of the weight of the molten metal, and the casting is finally solidified and formed. And after the casting is solidified and formed, taking out the casting and the sand mold together, cleaning the adjusting and supporting device, putting a group of new sand molds, and pouring.

In order to improve the universality of the adjusting and supporting device, the outer surfaces of the sand moulds of different models only need to be made into the same inclination as the adjustable supporting blocks, and the 4 adjustable supporting blocks can be adjusted in position along the groove of the base so as to adapt to the fixed support of the sand moulds of different models.