Hardmeter supporting device and Leeb hardness meter

Abstract

The utility model relates to a durometer supporting device and a Leeb durometer. The hardometer supporting device provided by the utility model comprises a bracket assembly and a sliding block, wherein a strip-shaped first through hole is formed in the bracket assembly; the sliding block is used for being connected with a hardometer body; the sliding block is provided with a sliding part, the sliding part is arranged in the first through hole in a sliding mode, and when the sliding part slides along the first through hole, the sliding block drives the durometer to move relative to the support assembly in the direction parallel to the length direction of the first through hole. According to the hardometer supporting device provided by the invention, the hardometer can be aligned to different positions of the to-be-tested surface under the condition that the bracket assembly does not need to be moved, so that the test requirements of positions such as a joint welding seam and a heat affected zone are met. According to the Leeb durometer provided by the invention, the height of the durometer body can be adjusted, and the test compatibility of to-be-tested surfaces in different forms is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hardness testers, and in particular to a hardness tester support device and a Leeb hardness tester. Background Art

[0002] The Leeb hardness tester is a testing instrument. Its basic principle is that an impact body with a certain mass impacts the surface of the sample under a certain test force, and the impact velocity V is measured at a distance of 1 mm from the impact body to the sample surface. A With rebound speed V R , H L =1000V R / V A Since the Leeb hardness tester needs to impact the surface of the workpiece to measure the hardness, when the surface of the workpiece is curved, the Leeb hardness tester needs to be fixed to reduce the measurement error. However, in actual measurement, it is often necessary to perform multiple measurements at different positions on the curved surface, so it is necessary to fix it repeatedly, resulting in inconsistent verticality between the Leeb hardness tester and the surface of the workpiece in multiple measurements, increasing the measurement error. Summary of the invention

[0003] Based on this, it is necessary to provide a hardness tester support device and a Leeb hardness tester to address the problem of large errors when measuring the Leeb hardness on a curved surface multiple times.

[0004] In one aspect, the present application provides a hardness tester support device, the hardness tester support device comprising:

[0005] The bracket assembly is formed with a first long through hole;

[0006] The slider is used to connect the hardness tester body, and the slider has a sliding part, which is slidably arranged in the first through hole. When the sliding part slides along the first through hole, the slider drives the hardness tester to move relative to the bracket assembly along a direction parallel to the length direction of the first through hole.

[0007] In one embodiment, the bracket assembly includes a first bracket and a second bracket, a first recess is formed on one side of the first bracket, the second bracket is connected to the first bracket at a side where the first recess is provided, and the second bracket is formed with a second recess corresponding to the first recess, the second recess is connected to the first recess and forms the first through hole.

[0008] In one embodiment, two ends of the first bracket facing away from the first recess are respectively provided with first legs, and two ends of the second bracket facing away from the second recess are respectively provided with second legs.

[0009] In one embodiment, one of the first bracket and the second bracket is provided with a through hole, and the other one is provided with a threaded mounting hole, and the hardness tester support device also includes a bolt, which passes through the through hole and the threaded mounting hole to bolt the first bracket to the second bracket.

[0010] In one embodiment, the bracket assembly is provided with a scale portion, and the slider is provided with a marking portion. When the slider moves to different positions along the length direction of the first through hole, the marking portion corresponds to different positions of the scale portion.

[0011] In one of the embodiments, one of the bracket assembly and the slider is provided with a guide groove, and the other one is provided with a guide rail, and the guide rail is slidably engaged with the guide groove.

[0012] In one embodiment, the first through hole is a rectangular hole.

[0013] On the other hand, the present application also provides a Leeb hardness tester, comprising the above-mentioned hardness tester support device and a hardness tester body, wherein the hardness tester body is connected to the slider in a liftable manner.

[0014] In one embodiment, the Leeb hardness tester further includes a sleeve, the slider is provided with a second through hole, the sleeve is embedded in the second through hole and can move along the axial direction of the second through hole, and the hardness tester body.

[0015] In one embodiment, the hardness tester body and the sleeve are threadedly connected.

[0016] The above-mentioned hardness tester support device can align the hardness tester with different positions of the side surface to be tested by driving the slider to slide along the first through hole relative to the bracket assembly, thereby meeting the test requirements of different positions such as the weld seam of the welding joint and the heat-affected zone on the test surface without moving the bracket assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic diagram of a support assembly and a hardness tester body of a hardness tester support device in one embodiment of the present application.

[0018] FIG. 2 is a schematic diagram of the structure of a Leeb hardness tester in one embodiment of the present application.

[0019] FIG3 is a schematic structural diagram of a bracket assembly of a hardness tester support device in an embodiment of the present application.

[0020] FIG. 4 is a schematic structural diagram of a support assembly of a hardness tester support device in an unfixed state in one embodiment of the present application.

[0021] FIG. 5 is a schematic diagram of the structure of a slider in an embodiment of the present application.

[0022] FIG. 6 is a schematic structural diagram of a hardness tester body of a Leeb hardness tester in one embodiment of the present application.

[0023] FIG. 7 is a schematic diagram of the structure of a sleeve of a Leeb hardness tester in one embodiment of the present application.

[0024] Explanation of the reference numerals in the accompanying drawings: 100, bracket assembly; 100a, first through hole; 110, first bracket; 110a, first recess; 110b, threaded mounting hole; 111, first support leg; 120, second bracket; 120a, second recess; 120b, through hole; 121, second support leg; 130, scale portion; 200, slider; 200a, guide groove; 200b, second through hole; 210, marking portion; 300, single-head bolt; 400, hardness tester body; 410, rod; 410a, external threaded portion; 420, display portion; 500, sleeve; 500a, internal threaded portion. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0031] 1 to 5 , a hardness tester support device provided in one embodiment of the present application includes a bracket assembly 100 and a slider 200; the bracket assembly 100 is formed with a first elongated through hole 100 a; the slider 200 is used to connect the hardness tester body 400, and the slider 200 has a sliding portion. When the sliding portion slides along the first through hole 100 a, the slider 200 drives the hardness tester to move along the length direction of the first through hole 100 a.

[0032] The bracket assembly 100 of the hardness tester support device described in the present application is used to be placed on the surface to be tested, and the slider 200 is used to install the hardness tester body 400. By providing a sliding portion on the slider 200 and driving the sliding portion to slide along the first through hole 100a, the hardness tester can be aligned with different positions of the side surface to be tested, thereby meeting the test requirements of different positions such as the weld seam of the welding joint and the heat-affected zone on the surface to be tested without moving the bracket assembly 100.

[0033] Specifically, when in use, the hardness tester support device described in the present application can be placed on a horizontal or curved surface to be tested. As shown in Figure 1, at this time, the hardness tester support device is placed on a curved surface to be tested.

[0034] 2 , the slider 200 is used to install the hardness tester body 400 . The hardness tester body 400 is fixed by the slider 200 and maintained in a vertically arranged state, and can be vertically aligned with the surface to be measured to maintain a good measurement effect.

[0035] In this embodiment, the first through hole 100 a is rectangular, and the slider 200 can move back and forth along the length direction of the first through hole 100 a to adjust the position of the slider 200 relative to the surface to be measured.

[0036] In some embodiments, the bracket assembly 100 includes a first bracket 110 and a second bracket 120, a first recess 110a is formed on one side of the first bracket 110, the second bracket 120 is connected to the first bracket 110 at the side provided with the first recess 110a, and the second bracket 120 is formed with a second recess 120a corresponding to the first recess 110a. When the second bracket 120 and the first bracket 110 are in a connected state, the second recess 120a is connected with the first recess 110a and forms a first through hole 100a.

[0037] In an exemplary embodiment, the first bracket 110 and the second bracket 120 are symmetrically arranged. After the first bracket 110 and the second bracket 120 are spliced ​​and connected, the first recess 110a and the second recess 120a are connected to form a rectangular first through hole 100a. When assembling the hardness tester support device, as shown in FIG4, the first bracket 110 and the second bracket 120 can be aligned first, so that the first recess 110a and the second recess 120a are correspondingly arranged. After the slider 200 is placed in the first recess 110a and the second recess 120a, the first bracket 110 and the second bracket 120 are spliced ​​together, so that the slider 200 is correspondingly arranged with the first through hole 100a, reducing the difficulty of assembly. In this embodiment, the first bracket 110 is provided with a guide rail (not shown) at the edge corresponding to the first recess 110a, and the second bracket 120 is also provided with a guide rail at the edge corresponding to the second recess 120a, and the guide groove 200a is provided at the edge of the slider 200. In other embodiments, the edges of the first bracket 110 and the second bracket 120 may respectively form guide grooves 200 a , and the edges of the slider 200 may be provided with guide rails.

[0038] In some embodiments, one of the bracket assembly 100 and the slider 200 is provided with a guide groove 200a, and the other is provided with a guide rail, and the guide rail is slidably matched with the guide groove 200a. Exemplarily, the guide groove 200a serves as a sliding portion, and the number of the guide grooves 200a is 2, and the two guide grooves 200a are respectively provided at two opposite outer edges of the slider 200, and the edge of the first bracket 110 located at the first recess 110a and the edge of the second bracket 120 located at the second recess 120a are respectively provided with guide rails. As shown in FIG. 5, the two guide grooves 200a are parallel to each other, so that the cross-section of the slider 200 is approximately in the shape of an "I". Providing the guide grooves 200a on both sides improves the stability of the slider 200 when sliding, reduces the probability of the slider 200 falling out of the first through hole 100a, and makes the hardness tester support device more durable.

[0039] In some embodiments, the first through hole 100a is a rectangular hole. Referring to FIG. 3 , the first through hole 100a is rectangular, and the two opposite edges of the first through hole 100a are parallel to each other. Since the two opposite edges of the first through hole 100a are parallel to each other, the two guide rails are also parallel to each other, which has a better guiding effect on the slider 200, and the slider 200 is not easy to get stuck when sliding. In other embodiments, the first through hole 100a can also be in the shape of a parallelogram or a trapezoid.

[0040] In some embodiments, the first bracket 110 is provided with first legs 111 at both ends of the side away from the first recess 110a, and the second bracket 120 is provided with second legs 121 at both ends of the side away from the second recess 120a. Referring to FIG. 2 and FIG. 3, illustratively, the bottom surface of the first bracket 110 is provided with two first legs 111, and the two first legs 111 are respectively located at the two ends of the bottom surface of the first bracket 110. Similarly, the bottom surface of the second bracket 120 is provided with two second legs 121, and the two second legs 121 are respectively located at the two ends of the bottom surface of the second bracket 120. It can be understood that after the first bracket 110 and the second bracket 120 are assembled, the bracket assembly 100 is rectangular when viewed from a top view, and the two first legs 111 and the two second legs 121 are respectively located at the four corners of the bottom side of the bracket assembly 100, and the distribution is more uniform, so that the bracket assembly 100 has a better fixing effect on the surface to be tested. Furthermore, by providing the first support leg 111 and the second support leg 121 , the slider 200 can be separated from the surface to be measured, thereby preventing the slider 200 from being worn due to friction with the surface to be measured.

[0041] In some embodiments, one of the first bracket 110 and the second bracket 120 is provided with a through hole 120b, and the other of them is provided with a threaded mounting hole 110b. The hardness tester support device also includes a bolt, which passes through the through hole 120b and the threaded mounting hole 110b to bolt the first bracket 110 and the second bracket 120. Referring to Figures 2 and 4, in this embodiment, the through hole 120b is provided in the second bracket 120, and the through hole 120b passes through the second bracket 120 perpendicular to the length direction of the first through hole 100a, and the threaded mounting hole 110b passes through the first bracket 110 perpendicular to the length direction of the first through hole 100a. The bolt is a single-head bolt 300, which passes through the through hole 120b and the threaded mounting hole 110b and is fixed by a nut. The first bracket 110 and the second bracket 120 are fastened by bolt connection, and the fixing effect is good. Even on a curved surface, it can be easily operated to fix the first bracket 110 and the second bracket 120.

[0042] In other embodiments, the first bracket 110 and the second bracket 120 may be fixed by stud bolts, or the through hole may be provided in the first bracket 110 and the threaded mounting hole may be provided in the second bracket 120 .

[0043] In some embodiments, the support assembly 100 is provided with a scale portion 130, and the slider 200 is provided with a marking portion 210. When the slider 200 moves to different positions along the length direction of the first through hole 100a, the marking portion 210 corresponds to different positions of the scale portion 130. Referring to FIG. 3 and FIG. 5, illustratively, the scale portion 130 is located on the first support 110 and is arranged along the length direction of the first through hole 100a. The marking portion 210 is located at the edge of the slider 200 and points to the scale portion 130. When the slider 200 moves along the length direction of the first through hole 100a, the marking portion 210 points to different scale lines on the scale portion 130. Therefore, when in use, the test position can be determined by aligning the marking portion 210 with different scale lines of the scale portion 130 to ensure that the minimum measurement point spacing in the test standard is met. In other embodiments, the scale portion 130 can also be located in the second support 120.

[0044] In this embodiment, the scale portion 130 is an insert with scale lines embedded in the first bracket 110 . In other embodiments, the scale portion 130 may also be formed by directly etching the first bracket 110 .

[0045] The present application also provides a Leeb hardness tester, comprising the hardness tester support device and the hardness tester body 400 described above, wherein the hardness tester body 400 is connected to the slider 200 in a liftable manner. Referring to FIG1 , when the bracket assembly 100 of the hardness tester support device of the Leeb hardness tester is installed on a curved surface, the height of the hardness tester body 400 can be adjusted according to the distance between the hardness tester body 400 and the surface to be tested, so that the bottom end of the hardness tester body 400 fits the surface to be tested. In this way, for curved surfaces with different curvatures, hardness tests can also be performed by adjusting the height of the hardness tester body 400, which greatly improves the test compatibility of the Leeb hardness tester for surfaces with different curvatures or different forms.

[0046] In some embodiments, the Leeb hardness tester further includes a sleeve 500, which is embedded in the second through hole 200b and can move along the axial direction of the second through hole 200b. The bottom end of the hardness tester body 400 is sleeved in the sleeve 500 and connected to the sleeve 500. Referring to Figures 2, 5 and 6, specifically, the hardness tester body 400 includes a rod 410 and a display 420. The bottom end of the rod 410 is connected to the sleeve 500 and can move up and down with the sleeve 500 to adapt to different test surfaces. The sleeve 500 has a self-lubricating function. For example, a plurality of graphite blocks are embedded on the outer surface of the sleeve 500. In this way, the friction between the sleeve 500 and the hole wall of the second through hole 200b can be reduced, the sense of sticking can be reduced, and the use experience can be improved.

[0047] In some embodiments, the hardness tester body 400 and the sleeve 500 are threadedly connected. Referring to Figures 6 and 7, specifically, the outer peripheral side of the bottom end of the rod 410 of the hardness tester body 400 is provided with an external threaded portion 410a, and the inner wall of the sleeve 500 is provided with an internal threaded portion 500a, so that the rod 410 and the sleeve 500 can be screwed together. The hardness tester body 400 and the sleeve 500 are connected through the external threaded portion 410a and the internal threaded portion 500a, which is simple to operate and easy to disassemble, so that the sleeve 500 can be replaced in time when it is worn.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A hardness tester support device, characterized in that: The hardness tester supporting device comprises: The bracket assembly is formed with a first long through hole; The slider is used to connect the hardness tester body, and the slider has a sliding part, which is slidably arranged in the first through hole. When the sliding part slides along the first through hole, the slider drives the hardness tester to move relative to the bracket assembly along a direction parallel to the length direction of the first through hole.

2. The hardness tester support device according to claim 1, characterized in that: The bracket assembly includes a first bracket and a second bracket, a first recess is formed on one side of the first bracket, the second bracket is connected to the first bracket at a side where the first recess is provided, and the second bracket is formed with a second recess corresponding to the first recess, the second recess is connected to the first recess and forms the first through hole.

3. The hardness tester support device according to claim 2, characterized in that: Two ends of the first bracket on a side away from the first recess are respectively provided with first legs, and two ends of the second bracket on a side away from the second recess are respectively provided with second legs.

4. The hardness tester support device according to claim 2, characterized in that: One of the first bracket and the second bracket is provided with a through hole, and the other one is provided with a threaded mounting hole. The hardness tester support device also includes a bolt, which passes through the through hole and the threaded mounting hole to bolt the first bracket to the second bracket.

5. The hardness tester support device according to any one of claims 1 to 4, characterized in that: The bracket assembly is provided with a scale portion, and the slider is provided with a marking portion. When the slider moves to different positions along the length direction of the first through hole, the marking portion corresponds to different positions of the scale portion.

6. The hardness tester support device according to claim 1, characterized in that: One of the bracket assembly and the sliding block is provided with a guide groove, and the other one is provided with a guide rail, and the guide rail is slidably matched with the guide groove.

7. The hardness tester support device according to claim 6, characterized in that: The first through hole is a rectangular hole.

8. A Leeb hardness tester, characterized in that: It comprises the hardness tester supporting device as described in any one of claims 1 to 7 and a hardness tester body, wherein the hardness tester body is connected to the sliding block in a liftable manner.

9. The Leeb hardness tester according to claim 8, characterized in that: The Leeb hardness tester also includes a sleeve, the slider is provided with a second through hole, the sleeve is embedded in the second through hole and can move along the axial direction of the second through hole, and the hardness tester body.

10. The Leeb hardness tester according to claim 9, characterized in that: The hardness tester body and the sleeve are threadedly connected.

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