Auxiliary hardness detection device

Abstract

The utility model discloses a hardness detection auxiliary device which comprises a fixing ring, a supporting plate and a magnetic base, the fixing ring is detachably connected with the magnetic base through the supporting plate, and sliding grooves are formed in the bottom of the fixing ring and the top of the magnetic base and used for inserting the supporting plate; the middle of the fixing ring and the middle of the magnetic base are each provided with a durometer hole, the fixing ring and the magnetic base are each provided with a scale jackscrew, and the scale jackscrews extend into the durometer holes. A large V-shaped groove and a small V-shaped groove are formed in the bottom of the magnetic base, and an anti-scratch layer is arranged at the bottom of the magnetic base. The base has magnetism and can be adsorbed on the surface of a ferromagnetic material; the bottom of the base is a plane adhered with an anti-scratch layer, so that a working surface can be effectively protected from being scratched; two V-shaped grooves with different sizes are formed in the bottom of the base and can adapt to pipelines with different pipe diameters; the position can be aligned by adjusting the jackscrew; the magnetic base can be independently used or used in a combined mode according to the morphology of the durometer, and the durometer can adapt to various scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness detection, in particular to an auxiliary detection device equipped with a portable on-site Leeb hardness tester. Background Art

[0002] At present, in the on-site hardness testing of metal materials in various industries, Leeb hardness tester is increasingly valued and widely used because of its small size, simple and rapid test, and wide measurement range. Its principle is: use an impact body of specified mass to impact the surface of the sample at a certain speed under the action of elastic force, and calculate the hardness value by the ratio of the rebound speed of the punch at 1mm from the surface of the sample to the impact speed. The impact and rebound speed are measured by assembling a permanent magnet on the impact body. When the impact body passes through the coil, it induces a slightly different voltage in the coil when it moves forward and rebounds. These voltages are proportional to the speed, and the hardness value is displayed on the display device after computer processing. Because hardness and strength have a certain proportional relationship, it reflects the comprehensive mechanical properties of the material to a certain extent, and is often used to measure the quality of material performance. This can indirectly judge whether the quality of metal materials and the production process are perfect, and provide a reliable basis for the inspection and testing work.

[0003] Most Leeb hardness tests are conducted on-site, which places higher demands on the on-site accuracy, operability, and convenience of the hardness tester, that is, the hardness tester and accessories need to be adapted to a variety of scenarios.

[0004] In engineering practice, it is found that during the test, the existing hardness tester has a loose contact with the working surface or a certain angle, which causes the rebound impact body speed to decrease, thus affecting the accuracy of the measured value. Therefore, it is necessary to design a hardness detection auxiliary device to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a hardness detection auxiliary device with a reasonable structural design, which can be widely used in ferromagnetic parts with flat or curved surfaces to improve the accuracy of measurement values.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problem is: a hardness detection auxiliary device, characterized in that it includes a fixing ring, a support plate and a magnetic base, the fixing ring and the magnetic base are detachably connected through the support plate, and the bottom of the fixing ring and the top of the magnetic base are both provided with sliding grooves for inserting the support plate; the middle parts of the fixing ring and the magnetic base are both provided with hardness meter holes, and the fixing ring and the magnetic base are both installed with scale top screws, and the scale top screws extend into the hardness meter hole; the bottom of the magnetic base is provided with a large V-shaped groove and a small V-shaped groove, and the bottom of the magnetic base is provided with an anti-scratch layer.

[0007] Furthermore, the large V-shaped groove and the small V-shaped groove are perpendicular to each other.

[0008] Furthermore, the fixing ring and the magnetic base are both cylindrical structures.

[0009] Furthermore, four scale top screws are installed on the fixing ring and the magnetic base.

[0010] When the surface of the component to be tested is a flat working surface, the magnetic base can be tightly attached to the surface of the component, and the anti-scratch layer serves as a partition to prevent the working surface from being scratched. Depending on the morphology of the hardness tester, you can choose to use the magnetic base alone or in combination with this auxiliary device.

[0011] When using the magnetic base alone, insert the hardness tester into the hardness tester hole, adjust the scale screw with scale, place the hardness tester in the center of the hardness tester hole and lock it, and then combine it with the hardness tester to carry out the test operation. At this time, because the magnetic base is adsorbed to the working surface, and the hardness tester is locked in the center of the hardness tester hole, the impact device is flush with the magnetic base, so that the impact component is perpendicular to the working surface, which can avoid the angle problem and ensure the accuracy of the test value.

[0012] When the auxiliary device is used in combination, the support plate is respectively inserted into the slide grooves of the magnetic base and the fixing ring, so that the fixing ring is fixed on the top of the magnetic base; the hardness tester is inserted into the hardness tester hole, and the lower part of the hardness tester is placed in the center of the hardness tester hole of the magnetic base and locked by adjusting the scale top screw with scale, and the upper part of the hardness tester is placed in the center of the hardness tester hole and locked, and the hardness tester is combined with the hardness tester as a whole. At this time, the hardness tester is more secure. If it is found that the hardness tester is not perpendicular to the working surface, the position can be adjusted by adjusting the upper and lower scale top screws.

[0013] When the surface of the component to be tested is a pipe-type working surface, select different specifications of V-grooves at the bottom of the magnetic base according to the pipe diameter, and ride on the outer surface of the pipe axial direction. The magnetic base can also be adsorbed on the surface of the component, and the anti-scratch layer can prevent the working surface from being scratched. According to the morphology of the hardness tester, choose to use the magnetic base alone or in combination with this auxiliary device. The operation process is the same as when the surface of the component to be tested is a flat working surface.

[0014] Compared with the prior art, the utility model has the following advantages and effects: the base is magnetic and can be adsorbed on the surface of ferromagnetic materials; the bottom of the base is a flat surface with an anti-scratch layer, which can effectively protect the working surface from being scratched; two V-shaped grooves of different sizes are opened on the bottom of the base, which can adapt to pipes of different diameters; four scale top screws are provided in four directions of the base, and the position can be found by adjusting the top screws; according to the morphology of the hardness tester, the magnetic base can be used alone or in combination with the auxiliary device, which can be adapted to a variety of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the device in the utility model when viewed from above.

[0016] Figure 2 It is a schematic diagram of the top view of the structure of the device in the utility model.

[0017] Figure 3 It is a schematic diagram of the operation of the flat-plate type working surface in the utility model.

[0018] Figure 4 It is a schematic diagram of the operation of the pipeline type working surface in the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the device in the utility model.

[0020] In the figure: large V-shaped groove 1, anti-scratch layer 2, hardness tester hole 3, small V-shaped groove 4, scale top screw 5, fixing ring 6, support plate 7, magnetic base 8, flat plate type working surface 9, pipeline type working surface 10. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0022] Example

[0023] See also Figures 1 to 5 The utility model discloses a hardness detection auxiliary device, including a fixing ring 6, a support plate 7 and a magnetic base 8. The fixing ring 6 and the magnetic base 8 are detachably connected through the support plate 7. The bottom of the fixing ring 6 and the top of the magnetic base 8 are both provided with sliding grooves for inserting the support plate 7; the fixing ring 6 and the magnetic base 8 are both cylindrical structures, and the middle parts of the fixing ring 6 and the magnetic base 8 are both provided with a hardness meter hole 3. Four scale top screws 5 are installed on the fixing ring 6 and the magnetic base 8, and the scale top screws 5 extend into the hardness meter hole 3; a large V-shaped groove 1 and a small V-shaped groove 4 are provided at the bottom of the magnetic base 8, and the large V-shaped groove 1 and the small V-shaped groove 4 are perpendicular to each other, and an anti-scratch layer 2 is provided at the bottom of the magnetic base 8.

[0024] When operating on a flat working surface 9, the magnetic base 8 is adsorbed on the flat working surface 9, and the anti-scratch layer 2 is used as a partition. The support plate 7 is respectively inserted into the slide grooves of the magnetic base 8 and the fixing ring 6, and then the hardness tester is inserted into the hardness tester hole 3. The four scale top screws 5 with scales on the magnetic base 8 are adjusted, and the hardness tester is placed in the center of the hardness tester hole 3 and locked. The impact device is flush with the magnetic base 8, and the scale top screw 5 with scales on the fixing ring 6 is adjusted. The upper part of the hardness tester is placed in the center of the hardness tester hole 3 and locked. If it is found that the hardness tester is not perpendicular to the working surface, adjust the upper and lower scale top screws 5 again to align the position.

[0025] When the surface of the inspected component is a pipeline-type working surface 10, select a V-groove of appropriate specifications at the bottom of the magnetic base 8 according to the pipe diameter, ride on the axial outer surface of the pipe, use the anti-scratch layer 2 as a partition, insert the support plate 7 into the slide grooves of the magnetic base 8 and the fixing ring 6 respectively, insert the hardness tester into the hardness tester hole 3, and adjust the four scale top screws 5 with scales on the magnetic base 8 to place the lower part of the hardness tester in the center of the hardness tester hole 3 and lock it. The impact device is flush with the magnetic base 8, and adjust the scale top screw 5 with scales on the fixing ring 6 to place the upper part of the hardness tester in the center of the hardness tester hole 3 and lock it, and combine it with the hardness tester as one. If it is found that the hardness tester is not perpendicular to the working surface, the position can be adjusted by adjusting the upper and lower scale top screws 5.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] In addition, it should be noted that the above content described in this specification is only an example of the structure of the utility model. All equivalent changes made based on the structure, features and principles described in the utility model patent are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications, supplements or replace the specific embodiments described in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A hardness detection auxiliary device, characterized in that: The invention comprises a fixing ring (6), a support plate (7) and a magnetic base (8), wherein the fixing ring (6) and the magnetic base (8) are detachably connected via the support plate (7), and a slide groove is provided at the bottom of the fixing ring (6) and the top of the magnetic base (8) for inserting the support plate (7); a hardness tester hole (3) is provided at the middle of the fixing ring (6) and the magnetic base (8), and a scale top screw (5) is installed on the fixing ring (6) and the magnetic base (8), and the scale top screw (5) extends into the hardness tester hole (3); a large V-shaped groove (1) and a small V-shaped groove (4) are provided at the bottom of the magnetic base (8), and an anti-scratch layer (2) is provided at the bottom of the magnetic base (8).

2. The hardness detection auxiliary device according to claim 1 is characterized in that: The large V-shaped groove (1) and the small V-shaped groove (4) are perpendicular to each other.

3. The hardness detection auxiliary device according to claim 1 is characterized in that: The fixing ring (6) and the magnetic base (8) are both cylindrical structures.

4. The hardness detection auxiliary device according to claim 1 is characterized in that: Four scale top screws (5) are installed on the fixing ring (6) and the magnetic base (8).

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