Cylinder cover sand core bonding and positioning tool

Abstract

The utility model discloses a cylinder cover sand core bonding positioning tool which comprises a bottom plate, supports are fixedly connected to the two ends of the top of the bottom plate respectively, guide positioning blocks are fixedly connected to the two sides of the top of the bottom plate respectively, a positioning column is fixedly connected to one end of the top of each support, and a first mistake proofing block and a second mistake proofing block are arranged on the tops of the two supports respectively. Z-direction supporting blocks are arranged at the two ends of the supports, a main sand core is jointly arranged at the tops of the two supports, and a sand core small piece is arranged in the middle of the main sand core. The bottom plate, the positioning columns, the guide positioning blocks and the mistake-proof blocks are matched with one another, the main sand core is positioned and fixed, and when a small sand core piece is mounted, the bonding and assembling efficiency of the cylinder cover sand core is greatly improved by utilizing holes and mucilage glue reserved in the main sand core and combining the guide positioning blocks on the bottom plate; meanwhile, deviation is not prone to being generated during installation, the product quality is improved, then the qualified rate of products is increased, and the reworking cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder cover bonding and positioning equipment, in particular to a cylinder cover sand core bonding and positioning tool. Background Art

[0002] In the current foundry industry, due to the complex structure of cylinder heads, it is not normally possible to directly open the mold. Instead, the inner cavity and multi-core module need to be molded separately. Some sand cores cannot be positioned individually in the mold, so they need to be combined and bonded to other sand cores, and then positioned through the other sand cores.

[0003] During the bonding process, small sand cores are generally assembled and bonded to larger sand cores. Some of the taller and longer sand cores are prone to deviation at the tail during assembly, which in turn causes deviation in the cylinder head size and affects the cylinder head's pass rate.

[0004] For this reason, we propose to design a cylinder head sand core bonding and positioning tooling. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A cylinder head sand core bonding and positioning tool comprises a base plate, brackets are fixedly connected to both ends of the top of the base plate, guide positioning blocks are fixedly connected to both sides of the top of the base plate, a positioning column is fixedly connected to one end of the top of the bracket, a first anti-error block and a second anti-error block are respectively provided on the top of the two brackets, and Z-direction support blocks are provided at both ends of the bracket;

[0008] A main sand core is commonly arranged on the tops of the two supports, and a small sand core piece is arranged in the middle of the main sand core.

[0009] As a preferred solution of the cylinder head sand core bonding and positioning tool described in the utility model, handles are fixedly connected to both sides of the outer wall of the bracket near the top to facilitate the movement of the positioning tool.

[0010] As an optimal solution of the cylinder head sand core bonding and positioning tooling described in the utility model, the positioning columns on the top of the two brackets are diagonally arranged. Compared with setting two positioning columns on a single side, the diagonally arranged positioning columns can better position the sand core and ensure the stability of the sand core.

[0011] As an optimal solution for the cylinder head sand core bonding and positioning tooling described in the utility model, the first anti-error block is located on one side of the top of the corresponding bracket, and the second anti-error block is located near the middle of the top of the corresponding bracket, so as to prevent deviation during assembly of the bottom of the main sand core.

[0012] As an optimal solution of a cylinder head sand core bonding and positioning tooling described in the utility model, the Z-direction support block is arranged inside the two ends of the top of the bracket and is threadedly connected to it. The top of the Z-direction support block is higher than the top surface of the bracket. By screwing the Z-direction support block, it is easy to fit the bottom position of the sand core, providing stable support for the sand core.

[0013] As an optimal solution of the cylinder head sand core bonding and positioning tooling described in the utility model, positioning holes corresponding to the positioning columns are opened at the four corners inside the main sand core, which is convenient for assembly and positioning with the bracket and subsequent placement of small sand core parts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model realizes that the bottom plate, the positioning column, the guide positioning block and the anti-error block cooperate with each other to position and fix the main sand core. When installing small sand core parts, the reserved holes and glue on the main sand core are utilized in combination with the guide positioning block on the bottom plate, which greatly improves the bonding and assembly efficiency of the cylinder head sand core. At the same time, it is not easy to produce deviation during installation, thereby improving product quality, thereby improving the product qualification rate and saving rework costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0017] Figure 1 This is a structural diagram of a cylinder head sand core bonding and positioning tooling according to the present invention;

[0018] Figure 2 This is a schematic diagram of the installation of the main sand core of a cylinder head sand core bonding and positioning tooling of this utility model Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the installation of the main sand core of a cylinder head sand core bonding and positioning tooling of this utility model Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the installation of small sand core parts of a cylinder head sand core bonding and positioning tooling of the utility model.

[0021] Legend: 1. Base plate; 2. Bracket; 3. Handle; 4. Guide positioning block; 5. Positioning column; 6. First anti-error block; 7. Second anti-error block; 8. Z-direction support block; 9. Main sand core; 10. Small sand core piece; 11. Positioning hole. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] See also Figure 1-4 The utility model provides a cylinder head sand core bonding and positioning tool, including a base plate 1, both ends of the top of the base plate 1 are fixedly connected to brackets 2, and both sides of the outer wall of the bracket 2 near the top are fixedly connected to handles 3 to facilitate the movement of the positioning tool.

[0026] Both sides of the top of the bottom plate 1 are fixedly connected with guide positioning blocks 4, and one end of the top of the bracket 2 is fixedly connected with a positioning column 5.

[0027] In this embodiment, the positioning columns 5 on the top of the two brackets 2 are diagonally arranged. Compared with setting two positioning columns 5 on a single side, the diagonally arranged positioning columns 5 can better position the sand core and ensure the stability of the sand core.

[0028] A first anti-error block 6 and a second anti-error block 7 are respectively provided on the top of the two brackets 2, wherein the first anti-error block 6 is located on one side of the top of the corresponding bracket 2, and the second anti-error block 7 is located near the middle of the top of the corresponding bracket 2, so as to prevent deviation during assembly of the bottom of the main sand core 9.

[0029] Z-direction support blocks 8 are provided at both ends of the bracket 2. The Z-direction support blocks 8 are arranged inside the two ends of the top of the bracket 2 and are threadedly connected to it. The top of the Z-direction support block 8 is higher than the top surface of the bracket 2. By screwing the Z-direction support block 8, it is easy to fit the bottom position of the sand core, providing stable support for the sand core.

[0030] The main sand core 9 is commonly set on the top of the two brackets 2, and a small sand core piece 10 is set in the middle of the main sand core 9. Among them, positioning holes 11 corresponding to the positioning columns 5 are opened at the four corners inside the main sand core 9, which are convenient for assembly and positioning with the bracket 2 and subsequent placement of the small sand core piece 10.

[0031] When in use, the large main sand core 9 is directly placed on the designed positioning fixture, and is positioned by the positioning columns 5 and the Z-direction support blocks 8 on the top of the brackets 2 on both sides of the fixture.

[0032] Then, the small sand core pieces 10 to be assembled are positioned and assembled together through the glue on the main sand core 9 and the reserved holes. When placing the small sand core pieces 10, the bottom of the small sand core pieces 10 needs to be placed in the set guide positioning block 4 to limit it, thereby effectively preventing deviation during assembly of the bottom of the small sand core pieces 10.

[0033] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A cylinder head sand core bonding and positioning tool, comprising a base plate (1), characterized in that: Both ends of the top of the base plate (1) are fixedly connected to brackets (2), both sides of the top of the base plate (1) are fixedly connected to guide positioning blocks (4), one end of the top of the bracket (2) is fixedly connected to a positioning column (5), the tops of the two brackets (2) are respectively provided with a first anti-error block (6) and a second anti-error block (7), and both ends of the bracket (2) are provided with a Z-direction support block (8); A main sand core (9) is commonly provided on the tops of the two supports (2), and a small sand core piece (10) is provided in the middle of the main sand core (9).

2. The cylinder head sand core bonding and positioning tool according to claim 1, characterized in that: Handles (3) are fixedly connected to both sides of the outer wall of the bracket (2) near the top.

3. The cylinder head sand core bonding and positioning tool according to claim 1, characterized in that: The positioning posts (5) on the tops of the two brackets (2) are arranged diagonally.

4. The cylinder head sand core bonding and positioning tool according to claim 1, characterized in that: The first error-proofing block (6) is located on one side of the top of the corresponding bracket (2), and the second error-proofing block (7) is located near the middle of the top of the corresponding bracket (2).

5. The cylinder head sand core bonding and positioning tool according to claim 1, characterized in that: The Z-direction support blocks (8) are arranged inside the two ends of the top of the bracket (2) and are threadedly connected thereto, and the top of the Z-direction support blocks (8) is higher than the top surface of the bracket (2).

6. The cylinder head sand core bonding and positioning tool according to claim 1, characterized in that: Positioning holes (11) corresponding to the positioning columns (5) are provided at the four corners inside the main sand core (9).

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