CN216729428U

CN216729428U - Drawer type core assembly structure

Info

Publication number: CN216729428U
Application number: CN202123407506.9U
Authority: CN
Inventors: 王代锡; 唐民峰; 申保卫
Original assignee: DONGFENG FORGING CO LTD
Current assignee: DONGFENG FORGING CO LTD
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-14
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a drawer type core assembling structure which comprises a first sand core, a second sand core and a third sand core, wherein the first sand core is arranged on one side wall of the second sand core, and the third sand core is arranged on one side, located on the first sand core, of the second sand core. Has the advantages that: according to the utility model, through the design of the back plate, the upright post, the bottom plate, the first guide slope, the vertical groove and the second guide slope, the oil pump core assembly can be conveniently assembled among three sand cores by inserting the first sand core from the back of the second core insert and advancing the first core insert along the first guide slope on the second sand core and the second guide slope on the third core insert during assembly, the operation difficulty of the existing oil pump core assembly in a narrow space is effectively eliminated, the assembly efficiency of the oil pump core assembly is improved, meanwhile, no glue is needed, the generation of casting air holes caused by glue is avoided, the positioning is accurate, the fixing is firm and free of deflection, and the size accuracy of the casting is ensured.

Description

Drawer type core assembly structure

Technical Field

The utility model relates to the technical field of engine cylinder body casting, in particular to a drawer type core assembly structure.

Background

In the casting process of the engine block, in order to successfully cast the engine block, a sand core for casting the engine block is required to be assembled in advance.

However, the third sand core is mainly bonded to the assembled first sand core and the second sand core by a gluing method during assembly of the conventional oil pump core assembly, the method is not suitable for operation in a narrow space, and the oil pump core assembly fixed by the method has the problems of low position and size precision, poor stability and weak fixation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a drawer type core assembling structure is provided, and the problems that the third sand core is bonded to the assembled first sand core and the second sand core mainly by a viscose method during the assembly of the conventional oil pump core assembling, the method is not suitable for operation in a narrow space, and the oil pump core assembling fixed by the method has low position size precision, poor stability and infirm fixation are solved.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a drawer type core assembling structure which comprises a first sand core, a second sand core and a third sand core, wherein the first sand core is arranged on one side wall of the second sand core, the third sand core is arranged on one side, located on the first sand core, of the second sand core, and a second guide slope is arranged at the connection position of the third sand core and the first sand core.

Further, the first sand core comprises a main body, a stand column installed on one side wall of the main body, a bottom plate installed at the bottom end of the stand column and the main body, and a back plate installed on the other side wall of the stand column.

By adopting the technical scheme, the integrity of the first sand core structure can be ensured.

Furthermore, a first guide slope is arranged at the position, matched with the first sand core, of the second sand core, a vertical groove is formed in the middle of the first guide slope on the second sand core, and a back basket is arranged at the back of the vertical groove on the second sand core.

By adopting the technical scheme, the convenient assembly of the second sand core and the first sand core can be ensured.

Furthermore, the first sand core is connected with the second sand core in an inserting mode, and the third sand core is connected with the first sand core and the second sand core in an inserting mode.

By adopting the technical scheme, the first sand core, the second sand core and the third sand core can be conveniently assembled.

Further, the slope of the second guide slope is the same as the slope of the bottom end of the bottom plate.

By adopting the technical scheme, the bottom plate is conveniently and reliably matched with the guide slope II.

Further, the slope of the first guide slope is the same as the slope of the back plate, and the size of the vertical groove is matched with the size of the back plate.

By adopting the technical scheme, the convenient insertion of the back plate and the vertical groove can be realized.

(III) advantageous effects

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

in order to solve the problems that the third sand core is mainly bonded on the assembled first sand core and the assembled second sand core by a gluing method when the existing oil pump core assembly is assembled, the method is not suitable for operation in a narrow space, and the oil pump core assembly fixed by the method has low position size precision, poor stability and infirm fixation, the utility model ensures that the oil pump core assembly can be conveniently assembled among the three sand cores by inserting the first sand core from the back of the second core insert and advancing the first core insert along the first guide slope on the second sand core and the second guide slope on the third core insert through the design of the back plate, the upright post, the bottom plate, the first guide slope, the upright slot and the second guide slope, effectively eliminates the operation difficulty when the existing oil pump core assembly is assembled in the narrow space, improves the assembly efficiency of the oil pump core assembly, and does not need gluing at the same time, the casting air holes caused by the adhesion are avoided, the positioning is accurate, the fixation is firm without deflection, and the size precision of the casting is ensured.

Drawings

FIG. 1 is a schematic structural view of a drawer core assembly according to the present invention;

FIG. 2 is a schematic view of a first sand core of a drawer core assembly according to the present invention;

FIG. 3 is a schematic diagram of a second sand core in a drawer core assembly configuration according to the present invention;

fig. 4 is a schematic structural view of a third sand core in the drawer core assembly structure according to the present invention.

The reference numerals are illustrated below:

1. a first sand core; 101. a column; 102. a base plate; 103. a main body; 104. a back plate; 2. a second sand core; 201. a first guiding slope; 202. erecting a groove; 203. carrying a basket; 3. a third sand core; 4. and a second guiding slope.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1-4, a drawer type core assembly structure in this embodiment includes a first sand core 1, a second sand core 2, and a third sand core 3, wherein a side wall of the second sand core 2 is provided with the first sand core 1, a side of the first sand core 1 on the second sand core 2 is provided with the third sand core 3, a connecting portion of the third sand core 3 and the first sand core 1 is provided with a guiding slope 4, the guiding slope 4 can ensure that the third sand core 3 is closely attached to the bottom end of the first sand core 1, the first sand core 1 includes a main body 103, a vertical column 101 mounted on a side wall of the main body 103, a bottom plate 102 mounted at the bottom ends of the vertical column 101 and the main body 103, and a back plate 104 mounted on the other side wall of the vertical column 101, the back plate 104 is matched with a vertical groove 202 and a back basket 203 to ensure rapid assembly of the first sand core 1 and the second sand core 2, a guiding slope 201 is provided at a matching portion of the second sand core 2 with the first sand core 1, the vertical groove 202 is formed in the middle of the first guide slope 201 of the second sand core 2, and the back of the vertical groove 202 of the second sand core 2 is provided with the back basket 203, so that the second sand core 2 and the first sand core 1 can be conveniently assembled.

As shown in fig. 1 to 4, in this embodiment, the first sand core 1 is inserted into the second sand core 2, and the third sand core 3 is inserted into both the first sand core 1 and the second sand core 2, so that the first sand core 1, the second sand core 2, and the third sand core 3 can be conveniently assembled, the slope of the second guide slope 4 is the same as the slope of the bottom end of the bottom plate 102, which facilitates reliable matching between the bottom plate 102 and the second guide slope 4, the slope of the first guide slope 201 is the same as the slope of the back plate 104, and the size of the vertical groove 202 is matched with the size of the back plate 104, so that the back plate 104 can be conveniently inserted into the vertical groove 202.

The specific implementation process of this embodiment is as follows: when the cores are assembled, the first sand core 1 is firstly inserted from the back of the second sand core 2 and moves forward along the first guide slope 201 and the second guide slope 4 until the outer side surface of the back plate 104 of the first sand core 1 is flush with the back slope of the second sand core 2, the oil pump sand core is assembled in place, and thus the oil pump core is pushed in like a drawer, the core assembly is convenient and fast, the operation is simple and convenient, the operation difficulty in a narrow space is eliminated, the core assembly efficiency is improved, no glue is needed, the generation of casting air holes caused by glue is avoided, the first sand core 1 is respectively matched with the first guide slope 201 on the second sand core 2 and the second guide slope 4 on the third sand core 3, the positioning is accurate, the fixation is firm and free of deflection, and the size accuracy of the casting is ensured.

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. A drawer type core assembly structure is characterized in that: the sand core structure is characterized by comprising a first sand core (1), a second sand core (2) and a third sand core (3), wherein a side wall of the second sand core (2) is provided with the first sand core (1), the second sand core (2) is positioned on one side of the first sand core (1) and provided with the third sand core (3), and a guide slope II (4) is arranged at the joint of the third sand core (3) and the first sand core (1).

2. The drawer-type core assembly structure of claim 1, wherein: the first sand core (1) comprises a main body (103), a vertical column (101) installed on one side wall of the main body (103), a bottom plate (102) installed at the bottom end of the vertical column (101) and the main body (103), and a back plate (104) installed on the other side wall of the vertical column (101).

3. The drawer-type core assembly structure of claim 2, wherein: a first guide slope (201) is arranged at the position, matched with the first sand core (1), of the second sand core (2), a vertical groove (202) is formed in the middle of the first guide slope (201) on the second sand core (2), and a back basket (203) is arranged on the back of the vertical groove (202) on the second sand core (2).

4. The drawer-type core assembly structure of claim 1, wherein: the first sand core (1) is connected with the second sand core (2) in an inserting mode, and the third sand core (3) is connected with the first sand core (1) and the second sand core (2) in an inserting mode.

5. The drawer-type core assembly structure of claim 2, wherein: the slope of the second guide slope (4) is the same as the slope of the bottom end of the bottom plate (102).

6. The drawer-type core assembly structure of claim 3, wherein: the gradient of the guide slope I (201) is the same as that of the back plate (104), and the size of the vertical groove (202) is matched with that of the back plate (104).