Casting hardness detection placing tool

Abstract

The utility model relates to the field of casting machining, and particularly discloses a casting hardness detection placing tool which comprises a bottom plate, a first supporting block and a second supporting block are arranged on the two sides of the bottom plate respectively, and a first positioning groove and a second positioning groove are formed in the first supporting block and the second supporting block respectively. The two ends of the casting are placed in the first positioning groove and the second positioning groove correspondingly, and the to-be-hardened upper surface of the casting is in a horizontal state. The first supporting block and the second supporting block on the bottom plate are used for supporting the two ends of a casting, the first positioning groove and the second positioning groove are used for positioning and supporting the two ends of a non-standard casting, the stability of the casting is guaranteed, it is guaranteed that the pressed face is in a horizontal state, hard pressing of the casting on a hardness detection machine is facilitated, and the production efficiency is improved. The casting hardness detection precision is improved, the operation of workers is facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting processing, specifically a fixture for placing castings for hardness testing. Background Technology

[0002] Currently, with the continuous development of my country's industry, the demand for castings is gradually increasing. The diverse structural forms of castings lead to ever-growing needs, and castings are widely used in fluid valve castings, aerospace, automotive, machinery, and other fields. As the applications of castings become more widespread, the quality requirements, such as dimensional accuracy, are also becoming increasingly stringent.

[0003] After castings are manufactured, they need to undergo mechanical property testing. Hardness testing is one of the important indicators for detecting material properties, and it can reflect the differences in chemical composition, microstructure, and processing technology. For some non-standard castings, if the casting is placed directly on the support plate of the hardness testing machine, it will be unstable and the flatness of the surface to be hardened cannot be guaranteed. Therefore, this application proposes a casting hardness testing fixture to solve the above problems. Utility Model Content

[0004] To address the existing problems, this utility model provides a fixture for testing the hardness of castings, which can effectively solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A fixture for testing the hardness of castings includes a base plate, with a first support block and a second support block on each side of the base plate. The first support block and the second support block are respectively provided with a first positioning groove and a second positioning groove. The two ends of the casting are placed in the first positioning groove and the second positioning groove respectively, and the upper surface of the casting to be tested is in a horizontal state.

[0007] As a further improvement of this utility model: both the first positioning groove and the second positioning groove are V-shaped grooves and are matched with both ends of the casting.

[0008] As a further improvement of this utility model: the bottom of the first positioning groove and the second positioning groove are provided with rectangular grooves, and the bottom ends of the casting are suspended in the rectangular grooves.

[0009] As a further improvement of this utility model, a stop bar is provided on one side of the first support block and / or the second support block that are opposite to each other.

[0010] As a further improvement of this utility model, magnets are embedded in the side walls of both the first positioning groove and the second positioning groove.

[0011] As a further improvement of this utility model: both the first support block and the second support block are embedded in the base plate and connected to the base plate by screws.

[0012] As a further improvement of this utility model, the base plate is fixedly connected to both sides with handles.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model supports both ends of the casting by the first support block and the second support block on the base plate, and uses the first positioning groove and the second positioning groove to position and support the ends of the irregular casting, ensuring the stability of the casting, ensuring that the pressure surface is in a horizontal state, facilitating the hard pressing of the casting on the hardness testing machine, improving the hardness testing accuracy of the casting, facilitating worker operation, and improving production efficiency. Attached Figure Description

[0014] Figure 1 A three-dimensional schematic diagram of the overall structure of a fixture for testing the hardness of castings;

[0015] Figure 2 A schematic diagram of the overall structure of a fixture for testing the hardness of castings;

[0016] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0017] Figure 4 This is a schematic diagram of a fixture for supporting a casting in a casting hardness test.

[0018] In the diagram: 1. Base plate; 2. Through hole; 3. Handle; 4. First support block; 5. Second support block; 6. First positioning groove; 7. Second positioning groove; 8. Casting; 9. Rectangular groove; 10. Stop bar; 11. Magnet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Combination Figures 1 to 4This embodiment provides a fixture for placing castings for hardness testing. It includes a base plate 1 with several through holes 2 to reduce its weight. Handles 3 are fixedly connected to both sides of the base plate 1 for easy handling. A first support block 4 and a second support block 5 are respectively provided on the top surfaces of both sides of the base plate 1. Both the first support block 4 and the second support block 5 are embedded in the base plate 1 and connected to it by screws. The first support block 4 and the second support block 5 are respectively provided with a first positioning groove 6 and a second positioning groove 7. Both ends of the casting 8 are placed in the first positioning groove 6 and the second positioning groove 7, and the upper surface of the casting 8 to be tested for hardness is horizontal.

[0021] In this example, both the first positioning groove 6 and the second positioning groove 7 are V-shaped grooves and are matched with the two ends of the casting, which can provide matching support for the V-shaped structure at both ends of the casting. Furthermore, the bottom of the first positioning groove 6 and the second positioning groove 7 is provided with rectangular grooves, and the bottom ends of the casting are suspended in the rectangular grooves 9. The rectangular grooves prevent the two ends of the casting from directly contacting each other and causing pressure damage.

[0022] A stop bar 10 is provided on one side of the first support block 4 and / or the second support block 5 that are opposite to each other. In this example, a stop bar 10 is provided on the side of the first support block 4 that is opposite to the second support block 5. The stop bar is positioned opposite the rectangular groove. The stop bar can be used to limit one side of the casting. Of course, a stop bar can also be provided on the second support block to achieve the purpose of limiting both sides of the casting. The setting of the stop bar depends on the specific situation.

[0023] Magnets 11 are embedded in the side walls of both the first positioning groove 6 and the second positioning groove 7. The magnets are used to attract the casting to improve the stability of the casting. The magnets are permanent magnets or electromagnets.

[0024] The working principle of this utility model is as follows: the first and second support blocks on the base plate support both ends of the casting, and the first and second positioning grooves are used to position and support the ends of the irregular casting, ensuring the stability of the casting and ensuring that the pressure surface is horizontal. This facilitates the hard pressing of the casting on the hardness testing machine, improves the hardness testing accuracy of the casting, facilitates worker operation, and improves production efficiency.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for testing the hardness of castings, comprising a base plate, characterized in that, The base plate is provided with a first support block and a second support block on both sides respectively. The first support block and the second support block are provided with a first positioning groove and a second positioning groove respectively. The two ends of the casting are placed in the first positioning groove and the second positioning groove respectively, and the upper surface of the casting to be hardened is in a horizontal state.

2. The fixture for testing the hardness of castings according to claim 1, characterized in that, Both the first and second positioning grooves are V-shaped grooves and are matched to both ends of the casting.

3. The fixture for testing the hardness of castings according to claim 2, characterized in that, The bottom of the first positioning groove and the second positioning groove are provided with rectangular grooves, and the bottom ends of the casting are suspended in the rectangular grooves.

4. The fixture for testing the hardness of castings according to claim 1, characterized in that, The first support block and / or the second support block are provided with a baffle on one side that is opposite to each other.

5. The fixture for testing the hardness of castings according to claim 1, characterized in that, Magnets are embedded in the sidewalls of both the first and second positioning slots.

6. The fixture for testing the hardness of castings according to claim 1, characterized in that, Both the first support block and the second support block are embedded in the base plate and connected to the base plate by screws.

7. The fixture for testing the hardness of castings according to claim 1, characterized in that, Handles are fixedly connected to both sides of the base plate.

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