Adjustable metal material hardness detection clamp

Abstract

The utility model is applicable to the field of test fixtures, and provides an adjustable metal material hardness detection fixture, which comprises a bottom frame, a first support plate and a second support plate, the bottom frame is fixedly connected with the first support plate and the second support plate, the first support plate is fixedly connected with an electric push rod, the driving end of the electric push rod is fixedly connected with a fixed shaft, and the fixed shaft is fixedly connected with the fixed shaft. The fixing shaft is slidably connected with a second supporting plate, the other end of the fixing shaft is fixedly sleeved with a fixing ring, the fixing ring is fixedly connected with a plurality of evenly-distributed first bases, the end face, away from the first supporting plate, of the second supporting plate is fixedly connected with a fixing ring disc, and a plurality of T-shaped sliding grooves are formed in the fixing ring disc. T-shaped sliding blocks are connected into the T-shaped sliding grooves in a sliding mode, second bases are fixedly connected to the T-shaped sliding blocks, and distance adjusting assemblies are connected between the second bases and the corresponding first bases in a matched mode. The fixing device has the advantages of being capable of fixing the annular parts and adapting to the annular parts in different shapes.

Description

Technical Field

[0001] This utility model relates to the field of test fixtures, and in particular to an adjustable metal material hardness testing fixture. Background Technology

[0002] Hardness testing, as a routine physicochemical testing method, is indispensable in failure analysis and quality inspection. The hardness of a material is its ability to resist localized deformation, especially plastic deformation, indentation, or scratches; it is an important performance indicator for measuring the degree of softness or hardness of a material.

[0003] However, ring-shaped components, with their continuous ring structure, lack the fixing points or planes of traditional shapes (such as rectangles, cylinders, etc.). This characteristic makes it difficult to stably clamp or fix ring-shaped components during hardness testing.

[0004] Therefore, in view of the above situation, there is an urgent need to develop an adjustable metal material hardness testing fixture to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an adjustable metal material hardness testing fixture, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable metal material hardness testing fixture includes a base frame, a first support plate, and a second support plate. The first and second support plates are fixedly connected to the base frame. An electric push rod is fixedly connected to the first support plate. A fixed shaft is fixedly connected to the drive end of the electric push rod, and the fixed shaft is slidably connected to the second support plate. A fixed ring is fixedly sleeved at the other end of the fixed shaft. Multiple evenly distributed first bases are fixedly connected to the fixed ring. A fixed ring disk is fixedly connected to the end face of the second support plate away from the first support plate. Multiple T-shaped grooves are formed on the fixed ring disk, and each T-shaped groove corresponds to a first base. A T-shaped slider is slidably connected in each T-shaped groove. A second base is fixedly connected to each T-shaped slider, and an adjustment component is fitted between the second base and the corresponding first base. The fixture also includes a receiving component that abuts against the lower end of the annular outer wall.

[0008] In a further technical solution, the end of the T-shaped slider that contacts the annular component is set as an arc surface, and grooves are provided on the arc surface.

[0009] Further technical solutions, the distance adjusting assembly includes a first threaded rod, a threaded sleeve and a second threaded rod, the first threaded rod is rotatably connected on the first base, the second threaded rod is rotatably connected on the second base, and the threaded sleeve is threadedly connected on the outer wall of the first threaded rod and the threaded sleeve.

[0010] Further technical solutions, the threaded directions of the first threaded rod and the second threaded rod are opposite.

[0011] Further technical solutions, the receiving assembly includes a hydraulic telescopic rod, a receiving block and a receiving groove, the hydraulic telescopic rod is fixedly connected on the base frame, the receiving groove is formed on the upper end surface of the base frame, the receiving block is slidably connected on the inner wall of the receiving groove, and the lower end of the receiving block is fixedly connected with the driving end of the hydraulic telescopic rod.

[0012] Further technical solutions, the upper end surface of the receiving groove is arc-shaped.

[0013] As described above, the embodiments of the present application have the following beneficial effects compared with the prior art:

[0014] 1, the fixed shaft is driven to move through the electric push rod, then the fixed shaft drives the first base to move through the fixed ring, then the first base drives the second base to move through the distance adjusting assembly, the second base drives the T-shaped sliding block to extrude the inner wall of the annular component, the plurality of T-shaped sliding blocks are tightly attached to the inner wall of the annular component through cooperation, the friction between the T-shaped sliding blocks and the inner wall of the annular component is increased through the grooves, the annular component is further prevented from moving, and the annular component is supported when the hardness of the annular component is detected through the receiving assembly, so that the annular component can be fixed, and the annular component can be stably fixed during the hardness test.

[0015] 2, the distance between the T-shaped sliding block and the fixed shaft can be adjusted through the distance adjusting assembly, so that the distances between the plurality of T-shaped sliding blocks and the fixed shaft can be controlled to be different, and then the annular component of different shapes can be adapted.

[0016] In order to more clearly illustrate the structural features and effects of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of part of the structure of the present application;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of part of the structure of the present application; Figure 2 It is an enlarged schematic diagram of the three-dimensional structure of part A of the present application;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of part of the structure of the present application;Figure 2 A schematic diagram of the three-dimensional structure from another perspective.

[0021] In the diagram: 1. Base frame; 2. First support plate; 3. Second support plate; 4. Electric push rod; 5. Fixed shaft; 6. Fixed ring; 7. Fixed ring disc; 8. First base; 9. T-shaped slide groove; 10. T-shaped slider; 11. Second base; 12. Adjustable distance assembly; 121. First threaded rod; 122. Threaded sleeve; 123. Second threaded rod; 13. Groove; 14. Receiving assembly; 141. Hydraulic telescopic rod; 142. Receiving block; 143. Receiving groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1-4 As shown, this utility model embodiment provides an adjustable metal material hardness testing fixture, including a base frame 1, a first support plate 2, and a second support plate 3. The first support plate 2 and the second support plate 3 are fixedly connected to the base frame 1. An electric push rod 4 is fixedly connected to the first support plate 2. A fixed shaft 5 is fixedly connected to the driving end of the electric push rod 4, and the fixed shaft 5 is slidably connected to the second support plate 3. A fixed ring 6 is fixedly sleeved on the other end of the fixed shaft 5. A plurality of evenly distributed first bases 8 are fixedly connected to the fixed ring 6. The second support plate 3 is located at... A fixed ring disk 7 is fixedly connected to the end face of the first support plate 2. The fixed ring disk 7 has multiple T-shaped sliding grooves 9, and each T-shaped sliding groove 9 corresponds to a first base 8. A T-shaped slider 10 is slidably connected in each T-shaped sliding groove 9. A second base 11 is fixedly connected to each T-shaped slider 10, and an adjustment component 12 is connected between the second base 11 and the corresponding first base 8. The system also includes a receiving component 14, which abuts against the lower end of the annular outer wall and is used to provide support when testing the hardness of the annulus.

[0025] Furthermore, the end of the T-shaped slider 10 that contacts the annular component is set as an arc surface, and grooves 13 are provided on the arc surface. The grooves 13 are used to increase the friction between the upper end of the T-shaped slider 10 and the inner wall of the annulus.

[0026] Specifically, the fixed shaft 5 is driven to move by the electric push rod 4, then the fixed shaft 5 drives the first base 8 to move through the fixed ring 6, then the first base 8 drives the second base 11 to move through the distance adjusting assembly 12, the second base 11 drives the T-shaped sliding blocks 10 to extrude the inner wall of the annular component, the T-shaped sliding blocks 10 are tightly attached to the inner wall of the annular component through cooperation, the friction between the T-shaped sliding blocks 10 and the inner wall of the annular component is increased through the grooves 13, the annular component is further prevented from moving, support is provided when the hardness of the annular component is detected through the supporting assembly 14, so that the annular component can be fixed, and the annular component can be stably fixed during the hardness test; the distance between the T-shaped sliding blocks 10 and the fixed shaft 5 can be adjusted through the distance adjusting assembly 12, so that the distance between the T-shaped sliding blocks 10 and the fixed shaft 5 can be controlled to be different, and then different shapes of the annular component can be adapted.

[0027] As shown in Figure 2 and Figure 3 , the distance adjusting assembly 12 comprises a first threaded rod 121, a threaded sleeve 122 and a second threaded rod 123; the first threaded rod 121 is rotatably connected to the first base 8, the second threaded rod 123 is rotatably connected to the second base 11, and the threaded sleeve 122 is threadedly connected to the outer wall of the first threaded rod 121 and the second threaded rod 123.

[0028] Further, the threaded directions of the first threaded rod 121 and the second threaded rod 123 are opposite.

[0029] Specifically, when different shapes of the annular component need to be adapted, the threaded sleeve 122 is rotated, then the threaded sleeve 122 controls the first threaded rod 121 and the second threaded rod 123 to move close to or away from each other, thereby driving the second base 11 to move, then the second base 11 drives the T-shaped sliding blocks 10 to slide along the inner wall of the T-shaped sliding groove 9, so that the distance between the T-shaped sliding blocks 10 and the fixed shaft 5 is different, and then different shapes of the annular component can be adapted.

[0030] As shown in Figure 4 , the supporting assembly 14 comprises a hydraulic telescopic rod 141, a supporting block 142 and a supporting groove 143; the hydraulic telescopic rod 141 is fixedly connected to the bottom frame 1, the upper end surface of the bottom frame 1 is provided with the supporting groove 143, the inner wall of the supporting groove 143 is slidably connected with the supporting block 142, and the lower end of the supporting block 142 is fixedly connected with the driving end of the hydraulic telescopic rod 141.

[0031] Further, the upper end surface of the supporting groove 143 is arc-shaped.

[0032] Specifically, the hydraulic telescopic rod 141 is controlled to be elongated, then the hydraulic telescopic rod 141 drives the supporting block 142 to slide upward along the inner wall of the supporting groove 143 until abutting against the lower end of the outer wall of the annular component.

[0033] The working principle of the utility model is: the annular component is sleeved outside the fixed ring disc 7, then the electric push rod 4 is controlled to contract, the fixed shaft 5 is driven to move through the electric push rod 4, then the fixed shaft 5 drives the first base 8 to move through the fixed ring 6, then the first base 8 drives the second base 11 to move through the distance adjusting assembly 12, the T-shaped sliding block 10 is extruded to the annular inner wall by the second base 11, then the hydraulic telescopic rod 141 is controlled to elongate, then the hydraulic telescopic rod 141 drives the bearing block 142 to slide upwards along the inner wall of the bearing groove 143 until abutting the lower end of the outer wall of the annular component; when it is needed to adapt to annular components of different shapes, the threaded sleeve 122 is rotated, then the threaded sleeve 122 controls the first threaded rod 121 and the second threaded rod 123 to approach or move away from each other, thereby driving the second base 11 to move, then the second base 11 drives the T-shaped sliding block 10 to slide along the inner wall of the T-shaped sliding groove 9, thereby making the distance between the plurality of T-shaped sliding blocks 10 and the fixed shaft 5 different, and further being able to adapt to annular components of different shapes.

[0034] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable metal material hardness testing fixture comprising a base frame (1), a first support plate (2) and a second support plate (3), characterized in that, The chassis (1) is fixedly connected with a first support plate (2) and a second support plate (3), the first support plate (2) is fixedly connected with an electric push rod (4), the driving end of the electric push rod (4) is fixedly connected with a fixed shaft (5), the fixed shaft (5) is slidably connected with the second support plate (3), the other end of the fixed shaft (5) is fixedly sleeved with a fixed ring (6), the fixed ring (6) is fixedly connected with a plurality of uniformly distributed first bases (8), the end face of the second support plate (3) away from the first support plate (2) is fixedly connected with a fixed ring disc (7), a plurality of T-shaped sliding grooves (9) are formed in the fixed ring disc (7), the T-shaped sliding grooves (9) correspond to the first bases (8) one by one, T-shaped sliding blocks (10) are slidably connected in the T-shaped sliding grooves (9), the T-shaped sliding blocks (10) are fixedly connected with second bases (11), and distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); 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the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting assemblies (12) are connected between the second bases (11) and the corresponding first bases (8); the distance adjusting 2. The adjustable metal material hardness testing fixture of claim 1, wherein, ​ 3. The adjustable metal material hardness testing fixture of claim 2, wherein, ​ ​ 4. The adjustable metal material hardness testing fixture of claim 3, wherein, ​ 5. The adjustable metal material hardness testing fixture of claim 1, wherein, ​ ​ 6. The adjustable metal material hardness testing fixture of claim 5, wherein, ​

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