CN214442858U

CN214442858U - Sand core for sand casting convenient to local cooling

Info

Publication number: CN214442858U
Application number: CN202023154038.4U
Authority: CN
Inventors: 韩征超; 别云波
Original assignee: Tianjin Hangyu Jiarui Co ltd
Current assignee: Tianjin Hangyu Jiarui Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-22
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to a sand core for sand casting convenient to local cooling, including the psammitolite main part, the one end rigid coupling of psammitolite main part has the positioning seat, controls the through-hole that link up on the positioning seat, and the coaxial spacing chamber that link up about being equipped with in psammitolite main part. The utility model discloses a set up the concave way one that is stained with chromite sand cooling and inserts one in the psammitolite main part, it inserts the concave way three of two to be stained with chromite sand cooling, realized carrying out corresponding local cooling according to different casing product needs the position of carrying out local cooling, the cooling effect of casing product has been guaranteed, through set up the positioning seat in the psammitolite main part, spacing chamber and the psammitolite that has the trompil are protruding, be convenient for fix a position the psammitolite in the die cavity fast, through with the die cavity cooperation, the psammitolite is fixed firm, the condition of aversion or slope has been avoided taking place for the psammitolite, the size precision of casing product has been guaranteed, and then the rejection rate of casing product has been reduced.

Description

Sand core for sand casting convenient to local cooling

Technical Field

The utility model relates to a spare part casting technical field especially relates to a sand core for sand casting convenient to local cooling.

Background

Motor housings, vacuum pump housings, and the like are one of the important parts in industrial production. For large products such as motor housings and vacuum pump housings with thicker wall thicknesses, sand cores are usually cast in cooperation with a cavity. However, the existing sand core cannot perform corresponding local cooling according to the position where the local cooling is required to be performed on different shell products, the cooling effect of the shell products cannot be guaranteed, the sand core is difficult to position and unstable to fix, the sand core is easy to shift or incline, the size precision of the shell products is poor, and the rejection rate of the shell products is high.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and provides a sand core for sand casting, which is convenient for local cooling.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

a sand core for sand casting convenient for local cooling comprises a sand core main body, wherein one end of the sand core main body is fixedly connected with a positioning seat, the positioning seat is provided with a through hole which is communicated from left to right, the sand core main body is coaxially provided with a limiting cavity which is communicated from left to right, the outer side wall of the sand core main body is provided with a pair of concave channels II in parallel in the direction vertical to the axis direction of the limiting cavity, the sand core main body positioned at the outer sides of the two concave channels II is provided with a concave channel I which is corresponding from left to right and is arranged in an L-shaped structure, a plurality of chromite sand cooling inserts I are pasted in the concave channel I, the horizontal ends of the two concave channels I are communicated with a concave channel II which is closer to the concave channel I, the sand core main body is horizontally provided with a concave channel III which is positioned below the two concave channels II and is communicated with the concave channel II, the chromite sand cooling inserts II are pasted in the concave channel III, the adjacent surface of the side surface of the sand core main body where the concave channel I is positioned is provided with a step groove, the vertical end that the second of concave way and concave way were first all is linked together with the ladder groove, and it is protruding to have the psammitolite to keep away from one side of ladder groove on the psammitolite main part, is equipped with the trompil with external intercommunication in the psammitolite arch, is equipped with the boss two in the bellied one side of psammitolite, and the boss two is installed and is being close one side apart from the positioning seat in the psammitolite main part, and the bellied opposite side of psammitolite is equipped with boss one.

The thickness of the positioning seat is 20-45 mm.

The outer surface of the sand core main body is 5-9mm higher than the bottommost surface of the stepped groove.

The limiting cavity and the through hole are coaxially arranged.

The limiting cavity is a hollow cylindrical cavity.

The first boss and the sand core main body are arranged in an integrated structure.

The second boss and the sand core main body are arranged in an integrated structure.

The utility model has the advantages that: the utility model discloses simple structure, it is reliable and stable, through set up the concave way one that is stained with chromite sand cooling and inserts one in the psammitolite main part, it inserts the concave way three of two to be stained with chromite sand cooling, realized carrying out corresponding local cooling according to different casing product needs position, the cooling effect of casing product has been guaranteed, through set up the positioning seat in the psammitolite main part, spacing chamber and the psammitolite that has the trompil are protruding, be convenient for fix a position the psammitolite in the die cavity fast, through with the die cavity cooperation, the psammitolite is fixed firm, the condition of aversion or slope has been avoided taking place for the psammitolite, the size precision of casing product has been guaranteed, and then the rejection rate of casing product has been reduced.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a bottom view of the present invention;

in the figure: 1-positioning seat; 2-a sand core body; 3-concave channel one; 4-step groove; 5-concave channel two; 6-concave channel three; 7-chromite sand cooling insert I; 8-chromite sand cooling insert II; 9-a limiting cavity; 10-boss one; 11-boss two; 12-sand core projection;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in the figure, the sand core for sand casting convenient for local cooling comprises a sand core main body 2, one end of the sand core main body 2 is fixedly connected with a positioning seat 1, a through hole which is communicated from left to right is arranged on the positioning seat 1, a limiting cavity 9 which is communicated from left to right is coaxially arranged on the sand core main body 2, a pair of concave channels two 5 are arranged on the outer side wall of the sand core main body 2 in parallel and perpendicular to the axis direction of the limiting cavity 9, concave channels one 3 which are corresponding from left to right are arranged on the sand core main body 2 which is positioned on the outer side of the two concave channels two 5, the concave channels one 3 are arranged in an L-shaped structure, a plurality of chromite sand cooling inserts one 7 are pasted in the concave channels one 3, the horizontal ends of the two concave channels one 3 are communicated with the concave channels two 5 which are far away from each other, a concave channel three 6 is horizontally arranged on the same side of the sand core main body 2 with the concave channels one 3, the concave channels three 6 are positioned below the two concave channels two 5 and are communicated with the concave channels two 5, a chromite sand cooling insert 8 is pasted in the concave channel three 6, be equipped with ladder groove 4 on the adjacent surface of the side of going out with concave way 3 on psammitolite main part 2, the vertical end that concave way two 5 and concave way 3 all are linked together with ladder groove 4, keep away from ladder groove 4 one side on psammitolite main part 2 and ann has the psammitolite arch 12, be equipped with the trompil with external intercommunication on the psammitolite arch 12, be equipped with boss two 11 in one side of psammitolite arch 12, boss two 11 are installed on psammitolite main part 2 apart from the nearer one side of positioning seat 1, the opposite side of psammitolite arch 12 is equipped with boss one 10.

The thickness of the positioning seat 1 is 20-45 mm.

The outer surface of the sand core main body 2 is 5-9mm higher than the bottommost surface of the stepped groove 4.

The limiting cavity 9 and the through hole are coaxially arranged.

The limiting cavity 9 is a hollow cylindrical cavity.

The first boss 10 and the sand core main body 2 are arranged in an integrated structure.

The second boss 11 and the sand core main body 2 are arranged in an integrated structure.

The utility model discloses before the use, carry out local cooling's position according to different casing product needs, insert one 7 with chromite sand cooling and paste in the suitable position of concave way one 3, insert two 8 with chromite sand cooling and paste in the suitable position of concave way three 6, realized carrying out local cooling according to different casing product needs and carry out corresponding local cooling in the position, the cooling effect of casing product has been guaranteed, in the use, according to positioning seat 1, spacing chamber 9 and have the psammitolite arch 12 of trompil, be convenient for fix a position the psammitolite in the die cavity fast, through cooperating with the die cavity, the psammitolite is fixed firm, avoided the psammitolite to take place the condition of aversion or slope, the size precision of casing product has been guaranteed, and then the rejection rate of casing product has been reduced, the utility model discloses simple structure, it is reliable and stable.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A sand core for sand casting convenient for local cooling comprises a sand core main body (2) and is characterized in that one end of the sand core main body (2) is fixedly connected with a positioning seat (1), a through hole which is communicated with the left and the right is formed in the positioning seat (1), a limiting cavity (9) which is communicated with the left and the right is coaxially formed in the sand core main body (2), a pair of concave channels II (5) is parallelly arranged on the outer side wall of the sand core main body (2) and is perpendicular to the axis direction of the limiting cavity (9), a left concave channel I (3) and a right concave channel I (3) which are corresponding to each other are arranged on the sand core main body (2) which is positioned on the outer sides of the two concave channels II (5), the concave channel I (3) is arranged in an L-shaped structure, a plurality of chromite sand cooling insert I (7) are adhered in the concave channel I (3), the horizontal ends of the two concave channel I (3) are communicated with the concave channel II (5) which is closer to each other, a concave channel III (6) is horizontally arranged on the same side of the sand core main body (2) and the concave channel I (3), the third concave channel (6) is located below the second concave channel (5) and communicated with the second concave channel (5), a chromite sand cooling insert II (8) is pasted in the third concave channel (6), a stepped groove (4) is formed in the sand core main body (2) and on the side surface adjacent to the side surface where the first concave channel (3) is located, the vertical ends of the second concave channel (5) and the first concave channel (3) are communicated with the stepped groove (4), a sand core bulge (12) is mounted on one side, far away from the stepped groove (4), of the sand core main body (2), an opening communicated with the outside is formed in the sand core bulge (12), a second convex base (11) is arranged on one side of the sand core bulge (12), the second convex base (11) is mounted on one side, close to the positioning base (1), of the sand core main body (2), and a first convex base (10) is arranged on the other side of the sand core bulge (12).

2. A sand casting core for facilitating local cooling according to claim 1, characterized in that the thickness of the positioning socket (1) is 20-45 mm.

3. A sand casting core facilitating local cooling according to claim 1, wherein the outer surface of the core body (2) is 5-9mm higher than the lowest surface of the stepped groove (4).

4. A sand casting core facilitating local cooling according to claim 1, characterised in that the limiting chamber (9) is arranged coaxially with the through hole.

5. A sand casting core facilitating local cooling according to claim 1, characterised in that the limiting chamber (9) is a hollow cylinder chamber.

6. A sand casting core facilitating localized cooling as claimed in claim 1, wherein said first boss (10) is provided as a unitary structure with the core body (2).

7. A sand casting core facilitating local cooling according to claim 1, wherein the second boss (11) is provided as an integral structure with the core body (2).