CN216938310U

CN216938310U - Pump case casting mould

Info

Publication number: CN216938310U
Application number: CN202122408097.8U
Authority: CN
Inventors: 苏培强
Original assignee: Shandong Huiyu Auto Parts Co ltd
Current assignee: Shandong Huiyu Auto Parts Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-07-12
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a casting die for a pump shell, which belongs to the technical field of casting and comprises an upper die plate, a lower die plate and a sand core, wherein the sand core comprises a main core and an auxiliary core, the main core is a pump shell part, the auxiliary core is a flange part of the pump shell, the auxiliary core is in a circular ring shape, a plurality of cylindrical bosses are arranged on one end face of the auxiliary core, and the auxiliary core is sleeved on the main core through a hole in the center. The sand core for casting the pump shell is designed into a split type, the auxiliary core is used for casting the flange, the flange surface and the through hole of the pump shell are changed into casting production from machining, casting circulation is reduced, machining of the flange surface and the through hole is omitted, and cost is reduced.

Description

Pump case casting mould

Technical Field

The utility model relates to a pump shell casting mold, and belongs to the technical field of casting.

Background

The weight of the pump shell commonly seen in the market at present is different from 1Kg to 65Kg, and the product relates to various industries, such as: agriculture, tap water engineering, sewage treatment, petrochemical industry, ship industry, steel works, building construction and the like. The flange of the pump shell can be connected with a series of water supply devices, the connection mainly depends on the threaded holes on the flange, and in order to ensure that the connection part is not leaked when in use, the flatness of the mounting sealing surface of the flange and the position degree of the threaded holes have strict requirements, so that the end surface and the threaded holes of the flange are machined. This results in an increase in the number of steps and also increases the machining cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pump shell casting die which is produced by changing machining of a flange surface and a through hole of a pump shell into casting.

The utility model is realized by the following technical scheme:

the utility model provides a pump case casting mould, includes cope match-plate pattern, lower bolster and psammitolite, and the psammitolite includes main core and assists the core, and main core is pump case part, assists the core to be the flange part of pump case, and it is the ring form to assist the core, and one of them terminal surface of assisting the core is equipped with a plurality of cylinder bosss, assists the core to pass through the hole cover at center on main core.

The sand core for casting the pump shell is designed into a split type, the auxiliary core is used for casting the flange, the flange surface and the through hole of the pump shell are changed into casting production from machining, casting circulation is reduced, machining of the flange surface and the through hole is omitted, and cost is reduced.

Preferably, the auxiliary core is sleeved with two movable blocks, a two-stage stepped hole is formed in the center of the combined two movable blocks, an inner hole of the stepped hole is attached to the main core, an outer hole of the stepped hole is attached to the outer circumferential surface of the auxiliary core, an attachment surface between the outer hole of the stepped hole and the outer circumferential surface of the auxiliary core is called a circumferential attachment surface, and the movable blocks are further provided with arc-shaped holes. The two loose pieces are used for fixing the auxiliary core and are jointly used as inserts to be put into the core box for sand shooting again, and the sand leakage can be reduced.

Preferably, the upper end of the auxiliary core is provided with a plane boss, the back surfaces of the upper parts of the two loose pieces are provided with grooves, the grooves are attached to the back surface and the two side surfaces of the plane boss, and the attaching surfaces between the two loose pieces and the side surfaces of the plane boss are called plane attaching surfaces. The two movable blocks are more convenient and accurate to install, and the accuracy of the subsequently cast pump shell flange surface is improved.

Preferably, the part of the main core, which is mounted with the auxiliary core, is called an embedding end, the cross section of the embedding end is quadrilateral, the central hole of the auxiliary core is called an embedding hole, and the cross section of the embedding hole is also quadrilateral.

Further preferably, the upper end surfaces of the two loose pieces are flush with the upper end surface of the plane boss.

Further preferably, the back surface of the planar boss is flush with the back surface of the auxiliary core.

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

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of the upper and lower templates of the present invention in a separated state.

Fig. 2 is a schematic diagram of an explosion structure of a sand core in the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a sand core in the embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a sand core with two loose pieces mounted thereon according to an embodiment of the present invention.

FIG. 5 is a schematic structural view of the cooperation between two loose pieces and an auxiliary core in the embodiment of the present invention.

In the figure: 1. a primary core; 2. auxiliary cores; 3. a mosaic end; 4. embedding holes; 5. a cylindrical boss; 6. a loose block; 7. an arc-shaped hole; 8. a circumferential mating surface; 9. a planar mating surface; 10. a planar boss; 11. mounting a template; 12. and a lower template.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings.

As shown in fig. 1 to 5, the pump case casting mold comprises an upper mold plate 11, a lower mold plate 12 and a sand core, wherein the sand core comprises a main core 1 and an auxiliary core 2, the main core 1 is a pump case part, the auxiliary core 2 is a flange part of the pump case, the auxiliary core 2 is annular, a plurality of cylindrical bosses 5 are arranged on one end face of the auxiliary core 2, and the auxiliary core 2 is sleeved on the main core 1 through a central hole;

the outer circumference of the auxiliary core 2 is sleeved with two movable blocks 6, a two-stage stepped hole is formed in the center of the combined two movable blocks 6, an inner hole of the stepped hole is attached to the main core 1, an outer hole of the stepped hole is attached to the outer circumferential surface of the auxiliary core 2, an attachment surface between the outer hole of the stepped hole and the outer circumferential surface of the auxiliary core 2 is called a circumferential attachment surface, an arc-shaped hole 7 is further formed in the movable block 6, a planar boss 10 is arranged at the upper end of the auxiliary core 2, the back surface of the planar boss 10 is flush with the back surface of the auxiliary core 2, grooves are formed in the back surfaces of the upper portions of the two movable blocks 6 and are attached to the back surface and two side surfaces of the planar boss 10, the attachment surfaces between the two movable blocks 6 and the side surfaces of the planar boss 10 are called planar attachment surfaces, and the upper end surfaces of the two movable blocks 6 are flush with the upper end surfaces of the planar boss 10.

The part of the main core 1, which is mounted with the auxiliary core 2, is called an embedding end 3, the cross section of the embedding end 3 is quadrilateral, the central hole of the auxiliary core 2 is called an embedding hole 4, and the cross section of the embedding hole 4 is quadrilateral.

The working principle is as follows:

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a pump case casting mould, includes cope match-plate pattern (11), lower bolster (12) and psammitolite, its characterized in that: the psammitolite includes main core (1) and assists core (2), and main core (1) is pump casing part, assists core (2) to be the flange part of pump casing, and it is the ring form to assist core (2), is equipped with a plurality of cylinder bosss (5) on one of them terminal surface of assisting core (2), assists core (2) to overlap on main core (1) through the hole at center.

2. The pump casing casting mold of claim 1, wherein: the outer circumference of the auxiliary core (2) is sleeved with two movable blocks (6), a two-stage stepped hole is formed in the center of the two movable blocks (6) which are combined together, an inner hole of the stepped hole is attached to the main core (1), an outer hole of the stepped hole is attached to the outer circumferential surface of the auxiliary core (2), an attachment surface between the outer hole of the stepped hole and the outer circumferential surface of the auxiliary core (2) is called a circumferential attachment surface, and the movable blocks (6) are further provided with arc-shaped holes (7).

3. A pump casing casting mold according to claim 1 or 2, wherein: the upper end of assisting core (2) is equipped with a plane boss (10), and the upper portion back of two loose pieces (6) is equipped with the recess, and this recess pastes with the back and two sides of plane boss (10) mutually, and the binding face between two loose pieces (6) and plane boss (10) side is called the plane fitting surface.

4. A pump casing casting mold according to claim 3, wherein: the main core (1) is provided with a part which is installed on the auxiliary core (2) and is called as an embedding end (3), the section shape of the embedding end (3) is quadrilateral, the central hole on the auxiliary core (2) is called as an embedding hole (4), and the section shape of the embedding hole (4) is also quadrilateral.

5. A pump casing casting mold according to claim 3, wherein: the upper end surfaces of the two movable blocks (6) are flush with the upper end surface of the plane boss (10).

6. A pump casing casting mold according to claim 3, wherein: the back surface of the plane boss (10) is flush with the back surface of the auxiliary core (2).