A core assembling auxiliary testing tool for a cast cylinder head sand core

By setting limit slots and limit blocks on the auxiliary inspection tool for casting cylinder head sand core assembly, the problem of positional displacement of oil passage sand cores during assembly was solved, thus improving the product qualification rate.

CN224373810UActive Publication Date: 2026-06-19WUHAN RUIMING AUTOMOTIVE PARTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN RUIMING AUTOMOTIVE PARTS
Filing Date
2025-07-10
Publication Date
2026-06-19

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    Figure CN224373810U_ABST
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Abstract

This utility model discloses a sand core inspection tool technical field, specifically an auxiliary inspection tool for assembling sand cores for casting cylinder heads. It includes an inspection body serving as a support frame, with a limiting groove adapted to the oil passage sand core on the inspection body. A limiting block is connected to the top of the inspection body and positioned corresponding to the side of the oil passage sand core. Two sets of connecting components are symmetrically connected to both sides of the inspection body. The limiting groove on the inspection body acts as a bearing groove, allowing the oil passage sand core to be placed and thus providing auxiliary limiting and fixing. Furthermore, the limiting block limits the top side of the oil passage sand core, cooperating with the limiting groove to ensure the oil passage remains stable on the auxiliary inspection tool during assembly, guaranteeing the position of the oil passage sand core, preventing displacement, and improving product qualification rate.
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Description

Technical Field

[0001] This utility model relates to the field of sand core inspection tools, specifically an auxiliary inspection tool for assembling sand cores for casting cylinder heads. Background Technology

[0002] With increasingly fierce competition in the automotive industry, the requirements for car engines are becoming more stringent, and cylinder head designs are becoming more complex. The more complex the cylinder head, the more sand cores need to be removed from it. The more sand cores there are, the greater the error margin during assembly, leading to a lower pass rate.

[0003] Place the riser core on the worktable, and attach the oil passage core to the riser core using the designed positioning adhesive. However, because the oil passage core is relatively small and tall, and is also heavier, the core assembly will sway from side to side, causing the oil passage to be misaligned. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] Therefore, the purpose of this utility model is to provide an auxiliary inspection tool for assembling sand cores for casting cylinder heads. By using a limiting groove on the main body of the tool as a bearing groove, the oil passage sand core is placed and plays an auxiliary limiting and fixing role. In addition, the limiting block limits the top side of the oil passage sand core. In cooperation with the limiting groove, it ensures that the oil passage is stable on the auxiliary inspection tool when assembling the oil passage sand core, ensuring the position of the oil passage sand core, avoiding displacement, and improving the product qualification rate.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] An auxiliary inspection tool for assembling sand cores for casting cylinder heads, comprising:

[0008] The main body of the inspection fixture, which serves as the supporting frame, is provided with a limiting groove that is compatible with the oil passage sand core.

[0009] The limiting block is connected to the top of the gauge body and is set on the side corresponding to the oil channel sand core;

[0010] The connecting components are provided in two sets, which are symmetrically connected to both sides of the main body of the inspection fixture.

[0011] As a preferred embodiment of the auxiliary inspection tool for casting cylinder head sand core assembly described in this utility model, the top of the inspection tool body is provided with two sets of positioning grooves corresponding to the position of the limiting block.

[0012] As a preferred embodiment of the auxiliary inspection tool for casting cylinder head sand core assembly described in this utility model, the bottom of the limiting block is integrally formed with two sets of positioning posts, and the positioning posts are inserted into the positioning grooves.

[0013] As a preferred embodiment of the auxiliary inspection tool for casting cylinder head sand core assembly described in this utility model, the connecting component includes connecting seats connected to both ends of the tool body, and the connecting seats are provided with positioning holes that cooperate with external positioning bolts.

[0014] As a preferred embodiment of the auxiliary inspection tool for casting cylinder head sand core assembly described in this utility model, the side of the limiting block is bonded with a protective rubber pad corresponding to the contact surface of the oil passage sand core.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The oil channel sand core is placed in the limiting slot set on the main body of the fixture as a bearing slot, which plays an auxiliary role in limiting and fixing. In addition, the limiting block sets the top side of the oil channel sand core to limit it. In cooperation with the limiting slot, it ensures that the oil channel is stable on the auxiliary fixture when assembling the oil channel sand core, ensuring the position of the oil channel sand core, avoiding displacement, and improving the product qualification rate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting block structure of this utility model.

[0021] In the diagram: 100 Inspection fixture body, 110 Limiting slot, 120 Positioning slot, 200 Limiting block, 210 Positioning post, 300 Connecting assembly, 310 Connecting seat, 320 Positioning hole. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides an auxiliary inspection fixture for assembling sand cores in cast cylinder heads. A limiting groove on the fixture body serves as a bearing groove for placing the oil passage sand core, thus providing auxiliary limiting and fixing. Furthermore, a limiting block restricts the top side of the oil passage sand core, cooperating with the limiting groove to ensure the oil passage remains stable on the auxiliary inspection fixture during assembly, guaranteeing the position of the oil passage sand core and preventing displacement. Please refer to [link / reference]. Figure 1-3 It includes a gauge body 100, a limiting block 200, and a connecting assembly 300;

[0027] Please continue reading. Figure 1-2 The main body 100 of the fixture serves as a supporting base. The main body 100 of the fixture is provided with a limiting groove 110 that is compatible with the oil passage sand core. The limiting groove 110 serves as a bearing groove to place the oil passage sand core and plays an auxiliary role in limiting and fixing. Two sets of positioning grooves 120 are provided on the top of the fixture main body 100 corresponding to the position of the limiting block 200. The positioning grooves 120 serve as reference holes to limit the position of the limiting block 200.

[0028] Please continue reading. Figure 1-3 The limiting block 200 is connected to the top of the gauge body 100 and is set on the side of the oil passage sand core;

[0029] The bottom of the limiting block 200 is integrally formed with two sets of positioning posts 210. The positioning posts 210 are inserted into the positioning groove 120. The side of the limiting block 200 is bonded with a protective rubber pad (not shown in the figure) corresponding to the contact surface of the oil passage sand core. The limiting block 200 limits the top side of the oil passage sand core and cooperates with the limiting slot 110 to ensure that the oil passage is stable on the auxiliary inspection tool when assembling the oil passage sand core, ensuring the position of the oil passage sand core and avoiding displacement.

[0030] Please continue reading. Figure 1-2 The connecting component 300 is provided in two sets, and the two sets of connecting components 300 are symmetrically connected to both sides of the inspection fixture body 100;

[0031] The connecting assembly 300 includes connecting seats 310 connected to both ends of the fixture body 100. The connecting seats 310 are provided with positioning holes 320 that cooperate with external positioning bolts. The positioning holes 320 cooperate with external positioning bolts to fix the position of the fixture.

[0032] Working principle: When in use, the limiting groove 110 set on the main body 100 of the fixture serves as a bearing groove for placing the oil channel sand core, which plays an auxiliary role in limiting and fixing. In addition, the limiting block 200 limits the top side of the oil channel sand core and cooperates with the limiting groove 110 to ensure that the oil channel is stable on the auxiliary fixture when assembling the oil channel sand core, thus ensuring the position of the oil channel sand core and avoiding displacement.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A core setting aid for a cylinder head sand core, characterized in that include: The main body (100) of the inspection tool serves as a supporting base and is provided with a limiting groove (110) that is compatible with the oil passage sand core. A limiting block (200) is connected to the top of the gauge body (100) and is set on the side of the oil passage sand core; The connecting components (300) are provided in two sets, and the two sets of connecting components (300) are symmetrically connected to both sides of the inspection fixture body (100).

2. A core setting aid for a cylinder head sand core according to claim 1, characterized in that The top of the inspection fixture body (100) is provided with two sets of positioning grooves (120) corresponding to the position of the limiting block (200).

3. The auxiliary inspection tool for casting cylinder head sand core assembly according to claim 1, characterized in that, The bottom of the limiting block (200) is integrally formed with two sets of positioning posts (210), and the positioning posts (210) are inserted into the positioning groove (120).

4. The auxiliary inspection tool for casting cylinder head sand core assembly according to claim 1, characterized in that, The connecting assembly (300) includes a connecting seat (310) connected to both ends of the fixture body (100), and the connecting seat (310) has a positioning hole (320) that cooperates with an external positioning bolt.

5. The auxiliary inspection tool for casting cylinder head sand core assembly according to claim 1, characterized in that, The side of the limiting block (200) is bonded with a protective rubber pad corresponding to the contact surface between the oil passage sand core and the side of the limiting block (200).