A tensile specimen measuring mechanism with a chuck end positioning

Abstract

The utility model discloses a kind of stretching sample measurement mechanism with chuck end positioning, including device ontology, device ontology includes middle part test block, first chuck test block and second chuck test block;Middle part test block, first chuck test block and second chuck test block are smoothly transition and integrally processed into molding structure, first chuck test block is located in middle part test block right end, second chuck test block is located in middle part test block right end, the caliber of middle part test block is less than the caliber of first chuck test block and second chuck test block, the caliber of first chuck test block and second chuck test block is equal, main limiting slot is established in middle part test block inside, first chuck limiting slot is established in first chuck test block inside, second chuck limiting slot is established in second chuck test block inside.This kind of device structure is reliable, reduces error, from positioning, measurement, places stability and structural reliability etc., improves the precision and convenience of stretching sample measurement.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, specifically a tensile specimen measuring mechanism with a clamp end positioning. Background Technology

[0002] Tensile testing is a test method for determining the properties of materials under axial tensile load. Data obtained from tensile tests can determine a material's elastic limit, elongation, elastic modulus, proportional limit, reduction of area, tensile strength, yield point, yield strength, and other tensile properties. Creep data can be obtained from tensile tests conducted at high temperatures.

[0003] After the existing tensile test bar is completed, it breaks into two pieces and needs to be reassembled. The gauge length after tension is measured. If the bar is measured numerically, it is difficult to measure the length accurately because the bar is thin and has a fracture in the center. If it is laid horizontally on the test table, the bar is still unstable because of the long shortened section in the middle.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a tensile specimen measuring mechanism with a clamp end positioning, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tensile specimen measuring mechanism with clamp end positioning, comprising a device body, the device body including a central test block, a first clamp test block, and a second clamp test block; the central test block, the first clamp test block, and the second clamp test block are smoothly transitioned and integrally formed, the first clamp test block is located at the right end of the central test block, the second clamp test block is located at the right end of the central test block, the central test block, the first clamp test block, and the second clamp test block are all semi-cylindrical structures, the diameter of the central test block is smaller than the diameter of the first clamp test block and the second clamp test block, the diameters of the first clamp test block and the second clamp test block are equal, a main limiting groove is formed inside the central test block, a first clamp limiting groove is formed inside the first clamp test block, and a second clamp limiting groove is formed inside the second clamp test block.

[0009] Preferably, the rear end of the central test block is provided with a scale mounting groove, and the scale mounting groove is provided with a number of small scale blocks distributed in a horizontally equidistant manner.

[0010] Preferably, the main limiting groove, the first clamp limiting groove, and the second clamp limiting groove are all arc-shaped structures. A limiting step is provided at the connection between the main limiting groove and the first clamp limiting groove, and a limiting step is also provided at the connection between the main limiting groove and the second clamp limiting groove.

[0011] Preferably, both the first chuck test block and the second chuck test block include a stabilizing seat and a limiting block. The stabilizing seat and the limiting block are smoothly transitioned and integrally formed. The limiting block has an arc-shaped structure, and the stabilizing seat has a rectangular structure. The stabilizing seat is located at the top of the limiting block, and a stabilizing rubber pad is provided at the bottom of the stabilizing seat.

[0012] (III) Beneficial Effects

[0013] This invention provides a tensile specimen measuring mechanism with a clamp end positioning. It has the following advantages:

[0014] This solution presents a tensile specimen measuring mechanism with clamp end positioning. The mechanism utilizes a single-piece machined body comprising a semi-cylindrical central test block and first and second clamp test blocks. Internal main limiting grooves, clamp limiting grooves, and limiting steps enable precise splicing and positioning of the fractured specimen. The scale mounting groove and small scale block of the central test block allow for direct, convenient, and accurate measurement of the gauge length without additional tools. The stabilizing seats of the first and second clamp test blocks, combined with bottom stabilizing rubber pads, increase the contact area and friction, solving the problem of instability in the horizontal center of the specimen. Simultaneously, the integrated, one-piece structure facilitates processing, ensures structural reliability, and reduces errors. From the aspects of positioning, measurement, placement stability, and structural reliability, this design improves the accuracy and convenience of tensile specimen measurement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first clamp test block of this utility model.

[0017] In the figure, 1. Device body; 2. Middle test block; 3. First chuck test block; 4. Second chuck test block; 5. Main limiting groove; 6. First chuck limiting groove; 7. Second chuck limiting groove; 8. Scale mounting groove; 9. Small scale block; 10. Stabilizing seat; 11. Limiting block; 12. Stabilizing rubber pad; 13. Limiting step. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This utility model provides a technical solution:

[0020] Example 1

[0021] To address the aforementioned problems: after the existing tensile test bar is completed, it breaks into two pieces and needs to be reassembled. Measuring the gauge length after tension is difficult because the bar is thin and has a crack in the center. If the bar is laid horizontally on the test table, the center of the bar remains unstable due to the long, shortened section in the middle.

[0022] The solution is as follows: A tensile specimen measuring mechanism with clamp end positioning includes a device body 1. The device body 1 includes a central test block 2, a first clamp test block 3, and a second clamp test block 4. The central test block 2, the first clamp test block 3, and the second clamp test block 4 are smoothly transitioned and integrally formed. The first clamp test block 3 is located at the right end of the central test block 2, and the second clamp test block 4 is located at the right end of the central test block 2. The central test block 2, the first clamp test block 3, and the second clamp test block 4 are all semi-cylindrical structures. The diameter of the central test block 2 is smaller than the diameter of the first clamp test block 3 and the second clamp test block 4. The diameters of the first clamp test block 3 and the second clamp test block 4 are equal. A main limiting groove 5 is provided inside the central test block 2. A first clamp limiting groove 6 is provided inside the first clamp test block 3, and a second clamp limiting groove 7 is provided inside the second clamp test block 4.

[0023] Analysis of the above: The main body 1 of the device is supported by an integrally formed structure of the central test block 2, the first clamp test block 3, and the second clamp test block 4. The semi-cylindrical central test block 2 (with a smaller diameter) is adapted to the central reduction section of the test bar, and the first clamp test block 3 and the second clamp test block 4 (with larger and equal diameters) are adapted to the clamp end of the test bar; the internal main limiting groove 5 (corresponding to the central reduction section), the first clamp limiting groove 6 (corresponding to the first clamp end), and the second clamp limiting groove 7 (corresponding to the second clamp end) The arc surface conforms to the shape of the test bar to achieve splicing and positioning of the broken test bar. If the test bar is broken in the middle reduction section, the middle reduction sections of the two test bars are placed into the main limiting groove 5 respectively, and the clamp ends are placed into the first clamp limiting groove 6 and the second clamp limiting groove 7 respectively, so that the fracture surfaces are aligned. If the test bar is broken near the clamp end, the unbroken clamp end is placed into the corresponding clamp limiting groove, and the other broken end is placed into the main limiting groove 5 or another clamp limiting groove according to the reduction section and clamp end attributes. The one-piece molding structure ensures the positioning accuracy of each component and avoids assembly errors; the semi-cylindrical groove has strong adaptability to the shape of the test bar, which can quickly achieve stable splicing of the broken test bar and solve the positioning difficulties caused by the slenderness and cracks of the test bar.

[0024] Example 2:

[0025] Please see Figure 1-2 The present invention provides a technical solution based on Embodiment 1: the rear end of the central test block 2 is provided with a scale mounting groove 8, and the scale mounting groove 8 is provided with a number of small scale blocks 9 distributed in a horizontally equidistant manner.

[0026] Analysis of the above: The scale mounting slot 8 at the rear end of the middle test block 2 fixes the small scale blocks 9. The small scale blocks 9 are distributed laterally at equal intervals, forming a measuring scale. The gauge length after the test bar is stretched can be read directly. After the test bar is spliced ​​and positioned, the scale difference between the start and end points of the gauge length can be read directly through the small scale blocks 9. The scale is integrated into the small scale blocks 9 on the device, eliminating the need for additional measuring tools and reducing alignment deviations and reading errors of external tools; the equidistant distribution of the small scale blocks 9 ensures reading accuracy and improves measurement efficiency.

[0027] Example 3:

[0028] Please see Figure 1-2 Based on Embodiment 1, this utility model provides a technical solution: the main limiting groove 5, the first clamp limiting groove 6 and the second clamp limiting groove 7 are all arc-shaped structures. A limiting step 13 is provided at the connection between the main limiting groove 5 and the first clamp limiting groove 6, and a limiting step 13 is also provided at the connection between the main limiting groove 5 and the second clamp limiting groove 7.

[0029] Analysis of the above: The arc-shaped structure of the main limiting groove 5, the first clamp limiting groove 6, and the second clamp limiting groove 7 conforms to the curved surface of the test rod, limiting the radial sway of the test rod; the limiting step 13 at the connection point blocks the axial movement of the test rod, ensuring that the position of the test rod is fixed after splicing. When placing the test rod, the end of the test rod should abut against the limiting step 13 to ensure that the reference for each measurement is consistent. For test rods with slightly smaller diameters, the arc-shaped groove can still provide stable support through curved surface contact, and the limiting step 13 can still limit axial displacement. The arc-shaped groove (main limiting groove 5, first clamp limiting groove 6, and second clamp limiting groove 7) enhances the fit of the test rod, and the limiting step 13 eliminates the risk of axial sliding. The double limiting ensures that there is no displacement after the test rod is spliced, solving the measurement deviation problem caused by the instability of the test rod.

[0030] Example 4:

[0031] Please see Figure 1-2 The present invention provides a technical solution based on Embodiment 1: the first clamp test block 3 and the second clamp test block 4 both include a stabilizing seat 10 and a limiting block 11. The stabilizing seat 10 and the limiting block 11 are smoothly transitioned and integrally formed. The limiting block 11 has an arc-shaped structure, and the stabilizing seat 10 has a rectangular structure. The stabilizing seat 10 is located at the top of the limiting block 11, and a stabilizing rubber pad 12 is provided at the bottom of the stabilizing seat 10.

[0032] Analysis of the above: The stabilizing seat 10 (rectangular) of the first clamp test block 3 and the second clamp test block 4 increases the contact area between the device and the table, the bottom stabilizing rubber pad 12 increases the frictional resistance, and the limiting block 11 (arc-shaped) assists in positioning the clamp end. The three are integrally formed (smooth transition) to ensure structural stability. The combination of the stabilizing seat 10 and the rubber pad 12 solves the problem of center instability caused by the middle reduction section when the test bar is placed horizontally. The integrally formed stabilizing seat 10 and limiting block 11 enhance the structural rigidity, ensure that the device does not shake during the measurement process, and further improve the accuracy of the reading.

[0033] Working principle: During operation, the arc-shaped main limiting groove 5 inside the middle test block 2, the arc-shaped first clamp limiting groove 6 inside the first clamp test block 3, and the arc-shaped second clamp limiting groove 7 inside the second clamp test block 4 are used to fit the middle reduction section of the fracture tensile test bar and the clamp end, realizing the splicing and positioning of the test bar; the limiting step 13 at the connection between the main limiting groove 5 and the first clamp limiting groove 6 and the second clamp limiting groove 7 restricts the axial movement of the test bar, ensuring that the position is fixed after splicing; the rear end of the middle test block 2 is engraved with... Small graduation blocks 9, evenly distributed laterally within the mounting groove 8, allow direct reading of the gauge length of the stretched test bar without the need for additional measuring tools. Simultaneously, the rectangular stabilizing seat 10 (integrated with the arc-shaped limiting block 11) on the first clamp test block 3 and the second clamp test block 4, along with the stabilizing rubber pad 12 at the bottom of the stabilizing seat 10, increase the contact area between the device and the experimental table and enhance friction, preventing the test bar from being affected by instability in the center, ultimately achieving accurate and convenient measurement of the gauge length of the fractured tensile test bar.

[0034] The present invention comprises: 1. a device body; 2. a central test block; 3. a first chuck test block; 4. a second chuck test block; 5. a main limiting groove; 6. a first chuck limiting groove; 7. a second chuck limiting groove; 8. a scale mounting groove; 9. a small scale block; 10. a stabilizing seat; 11. a limiting block; 12. a stabilizing rubber pad; and 13. a limiting step. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this invention is the existing… After the tensile test, the test bar breaks into two pieces and needs to be reassembled. Measuring the gauge length after tensile testing is difficult because the bar is slender and has a central crack, making accurate length measurement challenging. If the bar is placed horizontally on the test table, the long, tapered section in the middle causes instability at the center. This invention addresses this issue by combining the aforementioned components to ensure a reliable overall structure and reduce errors. It improves the accuracy and convenience of tensile test specimen measurement in terms of positioning, measurement, placement stability, and structural reliability.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tensile specimen measuring mechanism with a clamp end positioning, characterized in that: The device includes a device body (1), which includes a central test block (2), a first clamp test block (3), and a second clamp test block (4). The middle test block (2), the first chuck test block (3), and the second chuck test block (4) are smoothly transitioned and integrally formed. The first chuck test block (3) is located at the right end of the middle test block (2), and the second chuck test block (4) is located at the right end of the middle test block (2). The middle test block (2), the first chuck test block (3), and the second chuck test block (4) are all semi-cylindrical structures. The diameter of the middle test block (2) is smaller than the diameter of the first chuck test block (3) and the second chuck test block (4). The diameters of the first chuck test block (3) and the second chuck test block (4) are equal. The middle test block (2) has a main limiting groove (5) inside, the first chuck test block (3) has a first chuck limiting groove (6) inside, and the second chuck test block (4) has a second chuck limiting groove (7) inside.

2. The tensile specimen measuring mechanism with clamp end positioning according to claim 1, characterized in that: The middle test block (2) has a scale mounting groove (8) at its rear end, and the scale mounting groove (8) contains several groups of small scale blocks (9) distributed in a horizontally equidistant manner.

3. The tensile specimen measuring mechanism with clamp end positioning according to claim 1, characterized in that: The main limiting groove (5), the first clamp limiting groove (6) and the second clamp limiting groove (7) are all arc-shaped structures. A limiting step (13) is provided at the connection between the main limiting groove (5) and the first clamp limiting groove (6), and a limiting step (13) is also provided at the connection between the main limiting groove (5) and the second clamp limiting groove (7).

4. The tensile specimen measuring mechanism with clamp end positioning according to claim 1, characterized in that: Both the first clamp test block (3) and the second clamp test block (4) include a stabilizing seat (10) and a limiting block (11). The stabilizing seat (10) and the limiting block (11) are smoothly transitioned and integrally formed. The limiting block (11) has an arc shape, and the stabilizing seat (10) has a rectangular shape. The stabilizing seat (10) is located on top of the limiting block (11), and a stabilizing rubber pad (12) is provided at the bottom of the stabilizing seat (10).

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