Auxiliary positioning device for Rockwell hardness tester

Abstract

The present application discloses an auxiliary positioning device for a Rockwell hardness tester, which belongs to the technical field of material hardness detection. The key points of the technical solution are that the Rockwell hardness tester body includes an operating table, including a positioning plate, the positioning plate is placed on the top of the operating table, and a placement hole for placing a sample is opened on the positioning plate, and the placement hole can position the sample; a magnetic attraction structure is arranged between the positioning plate and the operating table, which is used for the positioning plate to be adsorbed to the operating table, and the magnetic attraction structure is connected to the positioning plate, so as to achieve the effect of improving the positioning accuracy of the sample and the test efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of material hardness detection, and in particular to an auxiliary positioning device for a Rockwell hardness tester. Background Art

[0002] Rockwell hardness tester is an important tool for material hardness testing and is widely used in hardness testing of materials with a certain hardness. During the test, it is crucial to align the center of the sample with the hardness measuring head to ensure the accuracy of the test results. However, currently operators usually locate the center point of the sample by visual inspection or using simple auxiliary tools such as rulers. This method is not only inefficient but also prone to errors, which directly affects the accuracy and repeatability of hardness testing. Utility Model Content

[0003] In order to improve the positioning accuracy and testing efficiency of samples, the utility model provides an auxiliary positioning device for a Rockwell hardness tester.

[0004] The Rockwell hardness tester auxiliary positioning device provided by the utility model adopts the following technical solutions:

[0005] A Rockwell hardness tester auxiliary positioning device, the Rockwell hardness tester body includes an operating table, including a positioning plate, the positioning plate is placed on the top of the operating table, the positioning plate is provided with a placement hole for placing the sample, and the placement hole can position the sample; a magnetic attraction structure is arranged between the positioning plate and the operating table, which is used for the positioning plate and the operating table to be adsorbed, and the magnetic attraction structure is connected to the positioning plate.

[0006] By adopting the above technical solution, when the sample needs to be tested, the positioning plate is placed at a suitable position on the operating table, and the operator only needs to place the sample to be tested in the placement hole, aligning the center position of the sample with the hardness measuring head, and then the operator can perform the hardness test. There is no need to perform complex positioning operations, which improves the positioning accuracy of the sample and the testing efficiency.

[0007] Preferably, the magnetic attraction structure adopts a soft magnet.

[0008] By adopting the above technical solution, the soft magnet has sufficient adsorption force and will not cause damage to the operating table due to long-term use, thereby ensuring the long-term use effect of the operating table.

[0009] Preferably, the positioning plate is connected to a limiting member, the limiting member abuts against a side wall of the operating table, and the limiting member is used to achieve positioning between the positioning plate and the operating table.

[0010] By adopting the above technical solution, when placing the positioning plate, the limiting member abuts against the operating table, so that the positioning plate can be quickly placed, the positioning accuracy of the positioning plate is improved, and thus the positioning accuracy and testing efficiency of the sample are improved.

[0011] Preferably, the limiting member is an arc-shaped plate, and the curvature of the arc-shaped plate matches the curvature of the side wall of the operating table.

[0012] By adopting the above technical solution, when placing the positioning plate, the limiting member and the operating table are closely fitted, so that the positioning plate can be quickly placed, the positioning accuracy of the positioning plate is improved, and the stability of the overall structure is enhanced.

[0013] Preferably, the limiting member is a limiting rod, and a plurality of the limiting rods are provided. The plurality of limiting rods are arranged circumferentially along the side wall of the operating table, and a spacing is left between adjacent limiting rods.

[0014] By adopting the above technical solution, when placing the positioning plate, the two limit rods and the operating table are tightly fitted, so that the positioning plate can be quickly placed. It not only has the positioning function, but also reduces the weight of the overall structure, making the operation more convenient.

[0015] Preferably, the positioning plate is made of a material with a low linear expansion coefficient and high stability.

[0016] By adopting the above technical solutions, this material selection can ensure that the positioning plate maintains a stable size and shape under different environmental conditions, thereby further improving the accuracy of the hardness test.

[0017] Preferably, the material with low linear expansion coefficient and high stability includes copper or chromium.

[0018] By adopting the above technical solution, copper or chrome can ensure that the positioning plate maintains a stable size and shape under different environmental conditions, thereby further improving the accuracy of the hardness test.

[0019] Preferably, the positioning plate is a plate-like body with a major arc-shaped cross section, and the side wall of the placement hole is flush with the chord side wall of the positioning plate.

[0020] By adopting the above technical solution, the superior arc-shaped design not only limits the sample over a larger area, but also allows the positioning plate and sample to be placed from different directions of the stage to ensure that samples of different lengths can be tested.

[0021] Preferably, the chord side wall of the positioning plate is connected to a clamping assembly, and the clamping assembly includes a fixing plate, a fixing bolt and a rubber block. There are multiple fixing plates, and the multiple fixing plates are respectively located on both sides of the placement hole. There are multiple fixing bolts, and the multiple fixing bolts are respectively located on both sides of the placement hole. The fixing bolts pass through the fixing plate and are threadedly connected to the fixing plate. There are multiple rubber blocks, and the multiple rubber blocks are respectively located on both sides of the placement hole. The rubber block is connected to one end of the fixing bolt close to the placement hole.

[0022] By adopting the above technical solution, when the sample is placed in the placement hole, the two fixing bolts are adjusted to be close to each other, and the two fixing bolts cooperate to fix the sample, further increasing the stability of the sample, thereby improving the positioning accuracy and test efficiency of the sample. The rubber block is used to directly contact the sample, reducing the damage to the sample caused by the fixing bolts, and reducing the possibility of the sample sliding or deflecting during the test.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. When the sample needs to be tested, place the positioning plate at a suitable position on the operating table. The operator only needs to place the sample to be tested in the placement hole, align the center of the sample with the hardness measuring head, and then the operator can perform the hardness test. There is no need to perform complex positioning operations, which improves the positioning accuracy and testing efficiency of the sample.

[0025] 2. When placing the positioning plate, the limiter abuts against the operating table, so that the positioning plate can be quickly placed, the positioning accuracy of the positioning plate is improved, and then the positioning accuracy and test efficiency of the sample are improved.

[0026] 3. When the sample is placed in the placement hole, adjust the two fixing bolts to be close to each other. The two fixing bolts work together to fix the sample, further increasing the stability of the sample, thereby improving the positioning accuracy and test efficiency of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the auxiliary positioning device of the Rockwell hardness tester in Example 1.

[0028] Figure 2 The purpose is to show the structure of the positioning plate in Example 1.

[0029] Figure 3 It is a structural schematic diagram of the auxiliary positioning device of the Rockwell hardness tester in Example 2.

[0030] Figure 4 It is a structural schematic diagram of the auxiliary positioning device of the Rockwell hardness tester in Example 3.

[0031] Figure 5It is a structural schematic diagram of the auxiliary positioning device of the Rockwell hardness tester in Example 4.

[0032] Description of reference numerals:

[0033] 1. Rockwell hardness tester body; 11. Operating table; 2. Positioning plate; 21. Placement hole; 22. Chord side wall; 3. Magnetic structure; 4. Limiting piece; 5. Clamping assembly; 51. Fixing plate; 52. Fixing bolt; 53. Rubber block. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0035] In the description of the embodiments of the present application, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0036] Example 1

[0037] Auxiliary positioning device for Rockwell hardness tester, refer to Figure 1 and Figure 2 , including a positioning plate 2, and the Rockwell hardness tester body 1 includes an operating table 11. The positioning plate 2 is placed on the top surface of the operating table 11. A placement hole 21 is vertically opened on the top of the positioning plate 2, and the placement hole 21 can position the sample. A magnetic attraction structure 3 is arranged between the positioning plate 2 and the operating table 11, which is used for the positioning plate 2 to adsorb the operating table 11, and the magnetic attraction structure 3 is connected to the positioning plate 2. The operator places the sample in the placement hole 21 on the positioning plate 2, so that the center position of the sample is aligned with the hardness measuring head, without the need for complex positioning operations, thereby improving the positioning accuracy and testing efficiency of the sample. The magnetic attraction structure 3 ensures the stability of the positioning plate 2 on the operating table 11, thereby effectively improving the accuracy and efficiency of the hardness test.

[0038] Reference Figure 2 The cross-sectional shape of the positioning plate 2 includes, but is not limited to, a circle, a square, a triangle, and a major arc shape. The cross-sectional shape of the positioning plate 2 is preferably a major arc shape. Further preferably, the diameter of the positioning plate 2 is the same as the diameter of the operating table 11. The positioning plate 2 includes a chord side wall 22 and a circumferential wall, and the side wall of the placement hole 21 is kept flush with the chord side wall 22 of the positioning plate 2.

[0039] The diameter of the positioning plate 2 is the same as the diameter of the operating table 11, which is more beautiful. At the same time, the arc of the major arc is larger than the semicircle. The design of the major arc not only limits the sample in a larger area, but also allows the positioning plate 2 and the sample to be placed from different directions of the stage to ensure that samples of different lengths can be tested.

[0040] Reference Figure 2 The positioning plate 2 is made of a material with a low linear expansion coefficient and high stability, such as copper or chrome. This material selection can ensure that the positioning plate 2 maintains a stable size and shape under different environmental conditions, thereby further improving the accuracy of the hardness test.

[0041] Reference Figure 2 The magnetic attraction structure 3 is made of soft magnets. The soft magnets have sufficient adsorption force and will not cause damage to the operating table 11 due to long-term use, thereby ensuring the long-term use effect of the operating table 11.

[0042] The operating principle of the present application is as follows: when the sample needs to be tested, the positioning plate 2 is first adsorbed on the operating table 11 of the Rockwell hardness tester so that the circumferential wall of the positioning plate 2 is flush with the circumferential wall of the operating table 11, and then the sample is placed in the placement hole 21 to align the center position of the sample with the hardness measuring head. There is no need to perform complicated positioning operations, which improves the positioning accuracy and testing efficiency of the sample.

[0043] Example 2

[0044] The auxiliary positioning device of the Rockwell hardness tester is different from that of the embodiment 1 in that Figure 3 The side wall of the positioning plate 2 is fixedly connected with a limiting member 4. The limiting member 4 is an arc-shaped plate, and the curvature of the arc-shaped plate matches the curvature of the side wall of the operating table 11. When placing the positioning plate 2, the limiting member 4 and the operating table 11 are closely fitted, so that the positioning plate 2 can be quickly placed, the positioning accuracy of the positioning plate 2 is improved, and the stability of the overall structure is enhanced.

[0045] Example 3

[0046] The auxiliary positioning device of the Rockwell hardness tester is different from that of the embodiment 2 in that Figure 4 The limiting member 4 is a limiting rod. There are multiple limiting rods, which are arranged along the circumference of the side wall of the operating table 11, and there is a gap between adjacent limiting rods. When placing the positioning plate 2, the two limiting rods and the operating table 11 are tightly fitted to achieve the rapid placement of the positioning plate 2, which not only has the positioning function, but also reduces the weight of the overall structure, making the operation more convenient.

[0047] Example 4

[0048] The auxiliary positioning device of the Rockwell hardness tester is different from that of the embodiment 3 in that Figure 5, the chord side wall 22 of the positioning block is connected with a clamping assembly 5. The clamping assembly 5 includes a fixing plate 51, a fixing bolt 52 and a rubber block 53. Two fixing plates 51 are vertically arranged, and the two fixing plates 51 are fixedly connected to the positioning plate 2, and the two fixing plates 51 are respectively located on both sides of the placement hole 21. Two fixing bolts 52 are symmetrically arranged, and the fixing bolts 52 correspond to the fixing plates 51 one by one. The fixing bolts 52 pass through their corresponding fixing plates 51 and are threadedly connected to the fixing plates 51. Two rubber blocks 53 are arranged, and the rubber blocks 53 correspond to the fixing bolts 52 one by one. The rubber block 53 is fixedly connected to one end of the corresponding fixing bolt 52 close to the placement hole 21.

[0049] After placing the sample in the placement hole 21, adjust the two fixing bolts 52 to be close to each other, and the two fixing bolts 52 cooperate to fix the sample, further increasing the stability of the sample. The rubber block 53 is used to directly contact the sample, reduce the damage caused by the fixing bolts 52 to the sample, and reduce the possibility of the sample sliding or deflecting during the test.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A Rockwell hardness tester auxiliary positioning device, the Rockwell hardness tester body (1) includes an operating table (11), characterized in that: It comprises a positioning plate (2), the positioning plate (2) is placed on the top of the operating table (11), the positioning plate (2) is provided with a placement hole (21) for placing a sample, and the placement hole (21) can position the sample; A magnetic attraction structure (3) is provided between the positioning plate (2) and the operating table (11) for adsorbing the positioning plate (2) and the operating table (11), and the magnetic attraction structure (3) is connected to the positioning plate (2).

2. The auxiliary positioning device for Rockwell hardness tester according to claim 1, characterized in that: The magnetic attraction structure (3) adopts a soft magnet.

3. The auxiliary positioning device for Rockwell hardness tester according to claim 1, characterized in that: The positioning plate (2) is connected to a limiting member (4), the limiting member (4) abuts against a side wall of the operating table (11), and the limiting member (4) is used to achieve positioning between the positioning plate (2) and the operating table (11).

4. The auxiliary positioning device for Rockwell hardness tester according to claim 3, characterized in that: The limiting member (4) is an arc-shaped plate, and the curvature of the arc-shaped plate matches the curvature of the side wall of the operating table (11).

5. The auxiliary positioning device for Rockwell hardness tester according to claim 3, characterized in that: The limiting member (4) is a limiting rod, and a plurality of the limiting rods are provided. The plurality of limiting rods are arranged circumferentially along the side wall of the operating table (11), and a spacing is left between adjacent limiting rods.

6. The auxiliary positioning device for Rockwell hardness tester according to claim 1, characterized in that: The positioning plate (2) is made of a material with a low linear expansion coefficient and high stability.

7. The auxiliary positioning device for Rockwell hardness tester according to claim 6, characterized in that: The material with low linear expansion coefficient and high stability includes copper or chromium.

8. The auxiliary positioning device for Rockwell hardness tester according to claim 1, characterized in that: The positioning plate (2) is a plate-shaped body with a major arc-shaped cross section, and the side wall of the placement hole (21) is flush with the chord side wall (22) of the positioning plate (2).

9. The auxiliary positioning device for Rockwell hardness tester according to claim 8, characterized in that: The chord side wall (22) of the positioning plate (2) is connected to a clamping assembly (5), and the clamping assembly (5) comprises a fixing plate (51), a fixing bolt (52) and a rubber block (53). A plurality of fixing plates (51) are provided, and the plurality of fixing plates (51) are respectively located on both sides of the placement hole (21). A plurality of fixing bolts (52) are provided, and the plurality of fixing bolts (52) are respectively located on both sides of the placement hole (21). The fixing bolt (52) passes through the fixing plate (51) and is threadedly connected to the fixing plate (51). A plurality of rubber blocks (53) are provided, and the plurality of rubber blocks (53) are respectively located on both sides of the placement hole (21). The rubber block (53) is connected to one end of the fixing bolt (52) close to the placement hole (21).

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