CN216607136U - Device for assembling pump body sand core by using bolt - Google Patents

Abstract

The utility model discloses a device for assembling a pump body sand core by using a bolt, which comprises a pump body sand core; the device also comprises a bolt and a nut; the pump body sand core is provided with a bolt hole, and the bolt penetrates through the bolt hole; and nuts are arranged at two ends of the bolt and used for locking the sand core of the pump body. The sand core locking device locks the plurality of sand cores in the axial direction of the bolt by utilizing the rotary fastening between the bolt and the nut, and limits the relative movement of the sand cores through the matching relation of the sand cores in the direction vertical to the bolt, thereby limiting the sand cores in four directions.

Description

Device for assembling pump body sand core by using bolt

Technical Field

The utility model relates to the technical field of assembly processes of cast pump body sand cores, in particular to a device for assembling a pump body sand core by using a bolt.

Background

The existing pump body sand core combination mode for casting is generally formed by bonding core glue. The core glue bonding sand core is relatively complex in operation, and easily causes casting defects such as glue squeezing and glue expanding. After the pump body sand core is assembled by using the glue, if a certain part of the sand core in the pump body combined sand core has defects, the whole sand core is scrapped. In addition, the core rubber is high in price, and the cost of pump body castings is increased.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a device for assembling a sand core of a pump body by using a bolt, wherein the plurality of sand cores are locked in an axial direction of the bolt by using rotational fastening between the bolt and a nut, and relative movement of the sand cores is limited in a direction perpendicular to the bolt direction by a fit relationship of the sand cores, so that the sand cores are limited in four directions.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a device for assembling a pump body sand core by using a bolt comprises a pump body sand core;

the device also comprises a bolt and a nut;

the pump body sand core is provided with a bolt hole, and the bolt penetrates through the bolt hole;

and nuts are arranged at two ends of the bolt and used for locking the sand core of the pump body.

Further, the pump body sand core comprises a first pump body sand core and a second pump body sand core, and the first pump body sand core comprises a first left sand core and a first right sand core which have the same structure and are mutually symmetrical;

and the first left sand core and the first right sand core are provided with limit tables for clamping the second pump body sand core to move back and forth.

Furthermore, the first left sand core, the first right sand core and the second pump body sand core are simultaneously provided with corresponding bolt holes for penetrating through bolts.

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

the plurality of sand cores are locked in the axial direction of the bolt by utilizing the rotation and fastening between the bolt and the nut, and the relative movement of the sand cores is limited in the direction vertical to the bolt through the matching relation of the sand cores, so that the sand cores are limited in four directions, and the plurality of sand cores are combined to form the whole pump body sand core. The bolt can be recycled after use to continue core assembly. The core glue combination is not used in the whole process, thereby avoiding various defects of core combination by using glue.

Drawings

FIG. 1 is a schematic view of an apparatus for assembling a pump body core using bolts according to the present invention.

In the figure: the pump body sand core structure comprises a first pump body sand core 1, a second pump body sand core 2, a nut 3 and a bolt 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution:

a device for assembling a pump body sand core by using a bolt comprises a pump body sand core;

the bolt 4 and the nut 3 are also included;

the pump body sand core is provided with a bolt hole, and the bolt penetrates through the bolt hole;

and nuts are arranged at two ends of the bolt and used for locking the sand core of the pump body.

Further, the pump body sand core comprises a first pump body sand core 1 and a second pump body sand core 2, and the first pump body sand core comprises a first left sand core and a first right sand core which have the same structure and are mutually symmetrical;

and the first left sand core and the first right sand core are provided with limit tables for clamping the second pump body sand core to move back and forth.

Furthermore, the first left sand core, the first right sand core and the second pump body sand core are simultaneously provided with corresponding bolt holes for penetrating through bolts.

The plurality of sand cores are locked in the axial direction of the bolt by utilizing the rotation and fastening between the bolt and the nut, and the relative movement of the sand cores is limited in the direction vertical to the bolt through the matching relation of the sand cores, so that the sand cores are limited in four directions, and the plurality of sand cores are combined to form the whole pump body sand core. The bolt can be recycled after use to continue core assembly. The core glue combination is not used in the whole process, thereby avoiding various defects of core combination by using glue.

The solution is as follows: during core making, bolt holes are reserved in a single sand core, namely the first pump body sand core 1 and the second pump body sand core 2. When assembling the core, the bolt 4 passes through the bolt hole, the two ends of the bolt are fastened by the nut 3, and the core is locked by the sand core to complete the assembly of the pump body. Core glue is not used in the core assembling process.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A device for assembling a pump body sand core by using a bolt comprises a pump body sand core;

it is characterized by also comprising a bolt and a nut;

the pump body sand core is provided with a bolt hole, and the bolt penetrates through the bolt hole;

and nuts are arranged at two ends of the bolt and used for locking the sand core of the pump body.

2. The device for assembling the pump body sand core by using the bolt according to claim 1, wherein the pump body sand core comprises a first pump body sand core and a second pump body sand core, and the first pump body sand core comprises a first left sand core and a first right sand core which have the same structure and are symmetrical to each other;

and the first left sand core and the first right sand core are provided with limit tables for clamping the second pump body sand core to move back and forth.

3. The apparatus for assembling a pump body core using bolts of claim 2, wherein the first left core, the first right core, and the second pump body core are simultaneously provided with corresponding bolt holes for passing bolts.

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