CN213613973U

CN213613973U - Casting model structure for improving product size stability

Info

Publication number: CN213613973U
Application number: CN202022718963.9U
Authority: CN
Inventors: 李文涛
Original assignee: Cmw Tianjin Industry Co ltd
Current assignee: Cmw Tianjin Industry Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-06
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a casting model structure for promoting product dimensional stability, including external mold and lower core frame, ann has a plurality of psammitolite locating component on the lower core frame, all is equipped with the psammitolite on every psammitolite locating component, ann has the psammitolite constant head tank with the psammitolite one-to-one on the external mold, is equipped with setpoint two, setpoint three and setpoint four on the psammitolite constant head tank. The utility model discloses a setting has setpoint two, the psammitolite constant head tank of setpoint three and setpoint four, and have the psammitolite of setpoint one, lower core frame cooperation external mold, make the setpoint of psammitolite and external mold on a plane, the unstable condition of foundry goods size that leads to because of the side set has been reduced, make the foundry goods size of production more stable, the contact surface through setting up psammitolite and psammitolite locating component be non-survival face, the problem that the psammitolite leads to the fleshy foundry goods has been avoided damaging when lower core, make the appearance quality of the foundry goods of production more excellent.

Description

Casting model structure for improving product size stability

Technical Field

The utility model relates to a casting model technical field especially relates to a casting model structure for promoting product dimensional stability.

Background

The clamp body produced on a DISA production line is generally used for casting a model structure, part of positioning points of a casting in the currently used casting model structure are formed by sand cores, the other part of the positioning points are positioned on an outer mold, the sand cores are placed into the sand mold through core placing equipment, positioning points formed by the sand mold where the sand cores are located and the outer mold are not in the same half mold, so that the two half molds are influenced by equipment mold staggering during mold closing to cause unstable size, meanwhile, the position where the sand cores are matched with the core placing equipment is a movable surface of the casting, the sand cores are easy to be damaged during core placing to cause fleshiness of the casting, the quality of the casting is seriously influenced, the rework cost and the labor intensity of workers are increased, the market competitiveness of products is greatly reduced, and the problem needs to be solved urgently.

Disclosure of Invention

The utility model discloses aim at solving prior art not enough, and provide a casting model structure for promoting product dimensional stability.

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

a casting model structure for improving the dimensional stability of a product comprises an outer mold and a lower core frame, wherein a plurality of sand core positioning components are arranged on the lower core frame, limiting columns which correspond up and down are arranged on the outer side of each sand core positioning component, one ends of the limiting columns are fixedly connected with the lower core frame in a vertical mode, sand cores are arranged on the sand core positioning components, arc-shaped clamping grooves matched with the limiting columns are formed in the sand cores, a first positioning point is arranged on each sand core, the contact surfaces of the sand cores and the sand core positioning components are non-survival surfaces, sand core positioning grooves which correspond to the sand cores in a one-to-one mode are arranged on the outer mold, limiting grooves which correspond to the limiting columns in a one-to-one mode are arranged on each sand core positioning groove, a second positioning point, a third positioning point and a fourth positioning point are arranged on the sand core positioning grooves, the second.

The sand core positioning assembly comprises a first sand core positioning block, a second sand core positioning block and a third sand core positioning block which are fixedly connected to the lower core frame, and the first sand core positioning block, the second sand core positioning block and the third sand core positioning block are distributed in a triangular mode.

The sand core positioning block I, the sand core positioning block II and the sand core positioning block III are distributed in an isosceles triangle shape.

The limiting column and the lower core frame are arranged in an integrated structure.

And arc-shaped chamfers are arranged outside the positioning point II and the positioning point III.

The outer mold is in a cuboid structure.

The utility model has the advantages that: the utility model discloses a setting has setpoint two, the psammitolite constant head tank of setpoint three and setpoint four, and have the psammitolite of setpoint one, lower core frame cooperation external mold, make the setpoint of psammitolite and external mold on a plane, the unstable condition of foundry goods size that leads to because of the side set has been reduced, make the foundry goods size of production more stable, the contact surface through setting up psammitolite and psammitolite locating component be non-survival face, the problem that the psammitolite leads to the fleshy foundry goods has been avoided damaging when lower core, make the appearance quality of the foundry goods of production more excellent.

Drawings

FIG. 1 is a front view of the lower core frame of the present invention cooperating with a sand core;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic structural view of the middle and outer molds of the present invention;

in the figure: 1, positioning a point I; 2, positioning a point II; 3, positioning a point III; 4-positioning point four; 5-core setting frame; 6-positioning a first sand core block; 7-sand core; 8-a limiting column; 9-external mold; 10-a sand core positioning block II; 11-a sand core positioning block III; 12-a limiting groove; 13-positioning a sand core groove;

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 casting model structure for improving the dimensional stability of a product comprises an outer die 9 and a lower core frame 5, wherein a plurality of sand core positioning components are arranged on the lower core frame 5, a limiting column 8 which corresponds up and down is arranged on the outer side of each sand core positioning component, one end of the limiting column 8 is fixedly connected with the lower core frame 5 vertically, a sand core 7 is arranged on each sand core positioning component, an arc-shaped clamping groove which is matched with the limiting column 8 is arranged on the sand core 7, a positioning point I1 is arranged on the sand core 7, the contact surface of the sand core 7 and the sand core positioning components is a non-survival surface, sand core positioning grooves 13 which correspond to the sand cores 7 one to one are arranged on the outer die 9, a limiting groove 12 which corresponds to the limiting column 8 one to one is arranged on each sand core positioning groove 13, a positioning point II 2, a positioning point III 3 and a positioning point IV 4 are arranged on the sand, the positioning point II 2, the positioning point III 3 and the positioning point IV 4 are all positioned on the outer die 9.

The sand core positioning assembly comprises a sand core positioning block I6, a sand core positioning block II 10 and a sand core positioning block III 11 which are fixedly connected to the lower core frame 5, and the sand core positioning block I6, the sand core positioning block II 10 and the sand core positioning block III 11 are distributed in a triangular shape.

The sand core positioning block I6, the sand core positioning block II 10 and the sand core positioning block III 11 are distributed in an isosceles triangle shape.

The limiting column 8 and the lower core frame 5 are arranged in an integrated structure.

And arc-shaped chamfers are arranged outside the positioning point II 2 and the positioning point III 3.

The outer mold 9 is in a cuboid structure.

When the utility model is used, an operator puts the sand core 7 on the lower core frame 5, the mould closing position of the sand core 7 and the outer mould 9 is controlled through the first sand core positioning block 6, the second sand core positioning block 10, the third sand core positioning block 11 and the limiting column 8, the limiting column 8 is inserted into the limiting groove 12, the contact surface of the sand core 7 and the sand core positioning component is a non-survival surface, the problem that the sand core 7 is damaged when the core is put down, so that the appearance quality of the produced casting is more excellent, then the lower core frame 5 is matched with the second positioning point 2, the third positioning point 3 and the fourth positioning point 4, the sand core 7 is put into the positioning groove sand core 13, the positioning points of the sand core 7 and the outer mould 9 are on the same plane, the condition that the size of the casting is unstable due to mould staggering is reduced, so that the size of the produced casting is more 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. The casting model structure for improving the dimensional stability of a product comprises an outer mold (9) and a lower core frame (5), and is characterized in that a plurality of sand core positioning components are arranged on the lower core frame (5), limiting columns (8) which correspond to each other from top to bottom are arranged on the outer side of each sand core positioning component, one ends of the limiting columns (8) are fixedly connected with the lower core frame (5) vertically, sand cores (7) are arranged on each sand core positioning component, arc-shaped clamping grooves matched with the limiting columns (8) are formed in the sand cores (7), positioning points I (1) are arranged on the sand cores (7), the sand cores (7) and the contact surfaces of the sand core positioning components are non-survival surfaces, sand core positioning grooves (13) which correspond to the sand cores (7) one to one are arranged on the outer mold (9), limiting grooves (12) which correspond to the limiting columns (8) one to one are arranged on each sand core positioning groove (13), and positioning points II (2) are arranged on the sand, And the positioning point II (2), the positioning point III (3) and the positioning point IV (4) are distributed in a triangular shape, and the positioning point II (2), the positioning point III (3) and the positioning point IV (4) are all positioned on the outer die (9).

2. The casting model structure for improving the dimensional stability of a product according to claim 1, wherein the sand core positioning assembly comprises a first sand core positioning block (6), a second sand core positioning block (10) and a third sand core positioning block (11) which are fixedly connected to the lower core frame (5), and the first sand core positioning block (6), the second sand core positioning block (10) and the third sand core positioning block (11) are distributed in a triangular shape.

3. The casting model structure for improving the dimensional stability of a product according to claim 2, wherein the first sand core positioning block (6), the second sand core positioning block (10) and the third sand core positioning block (11) are distributed in an isosceles triangle.

4. A cast model structure for improving the dimensional stability of a product according to claim 1, characterized in that the spacing post (8) is provided as an integral structure with the lower core frame (5).

5. The casting pattern structure for improving the dimensional stability of the product as claimed in claim 1, wherein the outer portions of the positioning point two (2) and the positioning point three (3) are provided with circular arc chamfers.

6. A casting pattern structure for improving the dimensional stability of a product according to claim 1, characterized in that the outer mold (9) is provided in a rectangular parallelepiped structure.