Auxiliary device for small-specification hardness sample

Abstract

The utility model discloses a small-specification hardness sample auxiliary device and relates to the technical field of hardness meters. The device comprises a test end and a rigid objective table, and is characterized in that a test pressure head is arranged at the front end of the test end, the lower end of the test pressure head is in clearance fit with the rigid objective table, a circular auxiliary iron plate is placed on the rigid objective table, an auxiliary through hole is formed in the circular auxiliary iron plate, and a side protection frame is mounted at the outer end of the circular auxiliary iron plate; and magnets are arranged at the bottoms of the side edge protection frames. The auxiliary device has the beneficial effects that the auxiliary device can be used only by putting a small-specification sample into a corresponding hole during operation, the operation is convenient, unsafe factors that the sample flies out to hurt people can be effectively eliminated, the safety of testers can be ensured only when the sample is in a controllable range, a gap is reserved around the sample, and the safety of the testers is ensured. And the bottom is in contact with a rigid objective table of the durometer, so that the accuracy of a sample result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, in particular to an auxiliary device for small-specification hardness samples. Background Art

[0002] Hardness tester is a commonly used hardness testing equipment in the steel mechanics testing industry. Among them, Rockwell hardness tester has become the main model of hardness test with its simple structure, wide application and convenient operation. Rockwell hardness is to press into the surface of the material under a certain load, and the hardness of the material is calculated by the depth of the indentation. In the actual test process, when testing small-sized hardness specimens, due to the small size of the sample, the sample preparation requirements are high, and there is a slight imbalance and bevel. During the test, due to the load pressure, the axis of the indenter and the loading direction are not parallel to the center line of the sample. The sample is subjected to lateral force, causing flying samples to injure people and damage the equipment indenter. In order to avoid flying samples injuring people and damaging the indenter, small-sized specimens are currently operated. Metallographic mounting materials are often used for inlaying before hardness testing, which is inconsistent with the provisions of GB / T 230.1 Rockwell hardness test method for metal materials that the specimen should be placed on a rigid support.

[0003] In order to ensure the safety of the test operator and protect the equipment, there is an urgent need for an auxiliary device that can place the sample on the rigid loading platform of the equipment for testing, while preventing the sample from being subjected to lateral force and causing flying samples to injure people or damage the equipment pressure head. Utility Model Content

[0004] The purpose of the utility model is to provide a small-sized hardness sample auxiliary device in view of the shortcomings and defects in the prior art. When operating the auxiliary device, the small-sized sample can be used by simply placing it into the corresponding hole. The operation is convenient and the unsafe factor of the sample flying out and injuring people can be effectively eliminated. The safety of the test personnel can be guaranteed only when the sample is within a controllable range. There is a gap around the sample, and the bottom contacts the rigid stage of the hardness tester, thereby ensuring the accuracy of the sample result.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a small-size hardness sample auxiliary device, which includes a test terminal 1 and a rigid stage 5, characterized in that: a test pressure head 2 is provided at the front end of the test terminal 1, and the lower end of the test pressure head 2 is clearance-matched with the rigid stage 5, and a circular auxiliary iron plate 4 is placed on the rigid stage 5, and an auxiliary through hole 7 is opened on the circular auxiliary iron plate 4, and a side protection frame 6 is installed at the outer end of the circular auxiliary iron plate 4, and a magnet 8 is provided at the bottom of the side protection frame 6.

[0006] Furthermore, the circular auxiliary iron plate 4 is provided with a plurality of auxiliary through holes 7 , and the inner diameter of each auxiliary through hole 7 is different.

[0007] Further, a test specimen 3 to be tested is arranged between the rigid stage 5 and the test indenter 2, and the test specimen 3 is located in the auxiliary through hole 7.

[0008] Further, anti-slip bumps 601 are arranged on the outer side of the side protection frame 6.

[0009] Further, the circular auxiliary iron plate 4 and the side protection frame 6 are clamped with each other.

[0010] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: when operating this auxiliary device, only a small-sized specimen needs to be placed into the corresponding hole for use, which is convenient to operate, and can effectively eliminate the unsafe factor of the specimen flying out and hurting people. The specimen is within a controllable range to ensure the safety of the test personnel. There are gaps around the specimen, and the bottom contacts the rigid stage of the hardness tester itself, thereby ensuring the accuracy of the specimen test result. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0012] Figure 1 It is a schematic structural diagram of the present utility model.

[0013] Figure 2 It is a schematic structural diagram of the circular auxiliary iron plate and the side protection frame in the present utility model.

[0014] Figure 3 It is Figure 2 The corresponding schematic back structure diagram.

[0015] Figure 4 It is Figure 2 The corresponding schematic cross-sectional structure diagram.

[0016] Explanation of the reference numerals in the drawings: test end 1, test indenter 2, test specimen 3, circular auxiliary iron plate 4, rigid stage 5, side protection frame 6, auxiliary through hole 7, magnet 8, anti-slip bump 601. Detailed Embodiment

[0017] Refer to Figures 1-4As shown, the technical solution adopted in this specific embodiment is: it includes a test terminal 1 and a rigid stage 5, and is characterized in that: a test pressure head 2 is provided at the front end of the test terminal 1, the lower end of the test pressure head 2 is gap-matched with the rigid stage 5, and a circular auxiliary iron plate 4 is placed on the rigid stage 5, an auxiliary through hole 7 is opened on the circular auxiliary iron plate 4, a side protection frame 6 is installed at the outer end of the circular auxiliary iron plate 4, and a magnet 8 is provided at the bottom of the side protection frame 6.

[0018] More specifically, the circular auxiliary iron plate 4 is provided with a plurality of auxiliary through holes 7, and the inner diameter of each auxiliary through hole 7 is different. Auxiliary through holes 7 of different sizes can ensure that samples of different specifications can be tested.

[0019] To explain more specifically, the rigid stage 5 and the test pressure head 2 are provided with a test sample 3 to be tested, and the test sample 3 is located in the auxiliary through hole 7 .

[0020] More specifically, the outer side of the side protection frame 6 is provided with an anti-skid bump 601. By adding the anti-skid bump 601 to the side protection frame 6, the anti-skid property of the circular auxiliary iron plate 4 and the side protection frame 6 is increased, which is convenient for the staff and the mechanical gripper to better pick up.

[0021] To be more specific, the circular auxiliary iron plate 4 and the side protection frame 6 are engaged with each other.

[0022] The working principle of the utility model is as follows: before the test, the circular auxiliary iron plate 4 is placed on the rigid stage 5 provided with the hardness tester, and the magnet 8 thereof can ensure that the circular auxiliary iron plate 4 is more stably fixed on the rigid stage 5, and the auxiliary through hole 7 matched with the sample to be tested 3 is aligned with the test pressure head 2, and then, the sample to be tested 3 is placed into the auxiliary through hole 7, and the position of the sample to be tested 3 to be tested for hardness is aligned with the test pressure head 2, and the hardness tester is started to be operated, wherein the inner diameter of the auxiliary through hole 7 is larger than the outer diameter of the sample to be tested 3, so as to ensure that there is a certain gap therebetween.

[0023] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A small-size hardness specimen auxiliary device, characterized in that: It comprises a test terminal (1) and a rigid stage (5), and is characterized in that: a test pressure head (2) is provided at the front end of the test terminal (1), the lower end of the test pressure head (2) is clearance-matched with the rigid stage (5), and a circular auxiliary iron plate (4) is placed on the rigid stage (5), an auxiliary through hole (7) is provided on the circular auxiliary iron plate (4), a side protection frame (6) is installed at the outer end of the circular auxiliary iron plate (4), and a magnet (8) is provided at the bottom of the side protection frame (6).

2. A small-size hardness sample auxiliary device according to claim 1, characterized in that: The circular auxiliary iron plate (4) is provided with a plurality of auxiliary through holes (7), and the inner diameter of each auxiliary through hole (7) is different.

3. A small-size hardness sample auxiliary device according to claim 1, characterized in that: The rigid stage (5) and the test pressure head (2) are provided with a test sample (3) to be tested, and the test sample (3) is located in the auxiliary through hole (7).

4. A small-size hardness specimen auxiliary device according to claim 1, characterized in that: The outer side of the side protection frame (6) is provided with an anti-slip bump (601).

5. A small-size hardness specimen auxiliary device according to claim 1, characterized in that: The circular auxiliary iron plate (4) and the side protection frame (6) are mutually clamped.

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