Metal material tensile fatigue test device

Abstract

The utility model belongs to the technical field of metal material tensile fatigue testing, and particularly relates to a metal material tensile fatigue testing device which comprises a supporting table, an air cylinder, a sliding plate, a fixing plate and guide rails, the two guide rails are fixedly installed on the top of the supporting table, and the fixing plate is fixedly installed on the tops of the two guide rails. The outer sides of the two guide rails are slidably connected with a sliding plate, an air cylinder is fixedly installed on the outer side of the supporting table, the telescopic end of the air cylinder is fixedly connected with the sliding plate, the air cylinder is used for driving the sliding plate to move along the outer sides of the two guide rails, and a clamping assembly is arranged at the position, located between the two guide rails, of the top of the supporting table. According to the utility model, the square groove and the circular groove are formed in the clamp I and the clamp II, so that not only can metal sheets or plates such as automobile damping sheets with fixed shapes be fixed, but also circular pipe fittings or metal columnar materials can be fixed, the detection requirements of common test articles are met, and the use limitation of the device is eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensile fatigue tests of metal materials, and particularly relates to a tensile fatigue test device for metal materials. Background Art

[0002] Chinese Patent Publication No. CN 208239228 U discloses a tensile fatigue testing machine for metal materials, belonging to the field of testing equipment. The utility model uses a screw rod and a spring to connect two metal plates together, and plays a certain buffering role during the stretching process, avoiding the phenomenon that the device generates excessive tensile force on the metal to be tested and causing unnecessary wear to the tensile fatigue testing machine for metal materials itself. The device can control the height of the workbench by adjusting the height of the lifting clamp, and then control the distance between the two ends of the clamp to achieve the stretching treatment of metal materials with different lengths.

[0003] During the actual use of the tensile fatigue testing machine for metal materials, due to the limitation of the clamp, it can only fix metal sheets or plates such as automobile shock absorbers with a fixed shape, resulting in a large limitation in the use of the device. At the same time, after the tensile test, it is necessary to remove the object to be tested, and then perform tensile measurement on the object to be tested. The process is cumbersome, increasing the labor intensity of the staff, and the object to be tested taken down will fall during the moving process, resulting in measurement errors.

[0004] Therefore, a tensile fatigue test device for metal materials is needed to solve the above-mentioned problems. Content of the Utility Model

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a tensile fatigue test device for metal materials, which effectively solves the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A tensile fatigue test device for metal materials, including a support table, a cylinder, a sliding plate, a fixing plate and a guide rail. Two guide rails are fixedly installed on the top of the support table, a fixing plate is fixedly installed on the top of the two guide rails, a sliding plate is slidably connected to the outside of the two guide rails, a cylinder is fixedly installed on the outside of the support table, and the telescopic end of the cylinder is fixedly connected to the sliding plate. The cylinder is used to drive the sliding plate to move along the outside of the two guide rails. A clamping assembly is arranged on the top of the support table and between the two guide rails. A clamping assembly is also arranged at the bottom of the sliding plate and between the two guide rails for clamping and fixing the object to be tested. A scale is arranged on the outer surface of one of the guide rails, and a measuring assembly is slidably connected to the outside of the guide rail for measuring the stretching distance.

[0007] Furthermore, the clamping assembly includes a support pad, fixture one, fixture two, connecting plate one, connecting plate two and an electric telescopic rod. A support pad is fixedly installed on the top of the support platform. Fixture one is fixedly installed on the outer side of the support pad. Connecting plate one is fixedly connected to the outer side of fixture one. An electric telescopic rod is fixedly installed on the outer side of connecting plate one. Fixture two is slidably connected to the outer side of the support pad and at a position opposite to fixture one. Connecting plate two is fixedly connected to the outer side of fixture two. The telescopic end of the electric telescopic rod is fixedly connected to connecting plate two. The electric telescopic rod is used to drive fixture two to approach or move away from fixture one.

[0008] Furthermore, fixture one and fixture two have the same size, and fixture two is closely attached to the outer surface of the support pad.

[0009] Furthermore, the measuring assembly includes a sliding sleeve, an insertion rod, a reading disk and a screw. A sliding sleeve is slidably connected to the outer side of the guide rail. An insertion rod is inserted into the outer side of the sliding sleeve. A reading disk is fixedly connected to the top of the sliding sleeve. The inner wall of the sliding sleeve is threadedly connected with a screw.

[0010] Furthermore, the sliding sleeve can rotate along the outer side of the guide rail. When the screw is tightened, the sliding sleeve can be fixed on the outer side of the guide rail.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, by providing a square groove and a circular groove in fixture one and fixture two, it is possible not only to fix metal sheets or plates such as automotive shock absorbers with a fixed shape, but also to fix circular pipe fittings or metal columnar materials, meeting the requirements for the detection of common test specimens and eliminating the limitations in the use of the device.

[0013] 2. In the present utility model, by aligning the insertion rod with the deformed end and taking readings through the reading disk, and then comparing the two sets of readings before and after the test, the deformation amount of the tensile test can be measured. This avoids removing the object to be measured and then performing tensile measurement on the object to be measured, simplifies the process, reduces the labor intensity of the staff, and eliminates the measurement error caused by the need to move the object to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is the present utility model Figure 1Partial enlarged structural schematic diagram of part A;

[0017] Figure 3 This utility model Figure 1 Partial enlarged structural schematic diagram of part B.

[0018] In the figure: 1, support platform; 2, air cylinder; 3, slide plate; 4, fixing plate; 5, guide rail; 6, support pad; 71, fixture one; 72, fixture two; 73, connecting plate one; 74, connecting plate two; 75, electric telescopic rod; 81, sliding sleeve; 82, inserting rod; 83, reading disk; 84, screw. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1, given by Figures 1-3 This utility model discloses a tensile fatigue test device for metal materials, including a support platform 1, an air cylinder 2, a slide plate 3, a fixing plate 4 and a guide rail 5. Two guide rails 5 are fixedly installed on the top of the support platform 1. A fixing plate 4 is fixedly installed on the top of the two guide rails 5. A slide plate 3 is slidably connected to the outside of the two guide rails 5. An air cylinder 2 is fixedly installed on the outside of the support platform 1. The telescopic end of the air cylinder 2 is fixedly connected to the slide plate 3. The air cylinder 2 is used to drive the slide plate 3 to move along the outside of the two guide rails 5. A clamping assembly is arranged on the top of the support platform 1 and between the two guide rails 5. Similarly, a clamping assembly is also arranged at the bottom of the slide plate 3 and between the two guide rails 5 for clamping and fixing the object to be tested. The clamping assembly includes a support pad 6, a fixture one 71, a fixture two 72, a connecting plate one 73, a connecting plate two 74 and an electric telescopic rod 75. A support pad 6 is fixedly installed on the top of the support platform 1. A fixture one 71 is fixedly installed on the outside of the support pad 6. A connecting plate one 73 is fixedly connected to the outside of the fixture one 71. An electric telescopic rod 75 is fixedly installed on the outside of the connecting plate one 73. A fixture two 72 is slidably connected to the outside of the support pad 6 and at a relative position to the fixture one 71. A connecting plate two 74 is fixedly connected to the outside of the fixture two 72. The telescopic end of the electric telescopic rod 75 is fixedly connected to the connecting plate two 74. The electric telescopic rod 75 is used to drive the fixture two 72 to approach or move away from the fixture one 71;

[0021] Specifically, the fixture one 71 and the fixture two 72 have the same size, and the fixture two 72 is closely attached to the outer surface of the support pad 6.

[0022] Embodiment 2, given by Figures 1-3Given that, a scale is provided on the outer surface of one of the guide rails 5, and a measuring assembly is slidably connected to the outside of the guide rail 5 for measuring the stretching distance. The measuring assembly includes a sliding sleeve 81, a plug rod 82, a reading disk 83 and a screw 84. The sliding sleeve 81 is slidably connected to the outside of the guide rail 5, the plug rod 82 is inserted into the outside of the sliding sleeve 81, the reading disk 83 is fixedly connected to the top of the sliding sleeve 81, and the screw 84 is threadedly connected to the inner wall of the sliding sleeve 81;

[0023] Specifically, the sliding sleeve 81 can rotate along the outside of the guide rail 5. When the screw 84 is tightened, the sliding sleeve 81 can be fixed to the outside of the guide rail 5.

[0024] Working principle: During use, the object to be tested is installed in the clamping assembly at the bottom of the sliding plate 3 and the top of the support table 1. By the elongation of the electric telescopic rod 75, the clamp two 72 can be controlled to move away from the clamp one 71, which is convenient for placing the object to be tested between the clamp one 71 and the clamp two 72. Subsequently, the electric telescopic rod 75 is driven again to make the clamp two 72 and the clamp one 71 approach each other, thereby clamping the object to be tested. Due to the shape characteristics of the clamp one 71 and the clamp two 72, square grooves and circular grooves are provided in the clamp one 71 and the clamp two 72, which can not only fix metal sheets or plates such as automotive shock absorbers with a fixed shape, but also fix circular pipe fittings or metal cylindrical materials, meeting the requirements for the detection of common test samples and eliminating the limitations in the use of the device;

[0025] At the same time, by using the electric telescopic rod 75, the clamp one 71 and the clamp two 72 can be quickly moved away from or close to each other, which is convenient and fast;

[0026] Subsequently, the measuring assembly can be adjusted. Align the plug rod 82 with the end of the object to be tested that is about to deform. Record the scale on the guide rail 5 through the reading disk 83. After adjusting the position of the sliding sleeve 81, fix the sliding sleeve 81 to the outside of the guide rail 5 through the screw 84. Subsequently, the telescopic end of the driving cylinder 2 can be extended to drive the sliding plate 3 to move upward, thereby completing the tensile fatigue test. Then, move the sliding sleeve 81 again, align the plug rod 82 with the deformed end, take a reading through the reading disk 83, and then compare the two sets of readings before and after the test to measure the deformation amount of the tensile test, avoiding removing the object to be tested and then measuring the tensile of the object to be tested, simplifying the process, reducing the labor intensity of the staff, and avoiding the need to move the object to be tested and eliminating the measurement error.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal material tensile fatigue test device, comprising a support platform (1), a cylinder (2), a slide plate (3), a fixed plate (4) and a guide rail (5), wherein two guide rails (5) are fixedly installed on the top of the support platform (1), the top of the two guide rails (5) are fixedly installed with a fixed plate (4), the outer sides of the two guide rails (5) are slidably connected with the slide plate (3), the outer side of the support platform (1) is fixedly installed with a cylinder (2), the telescopic end of the cylinder (2) is fixedly connected with the slide plate (3), and the cylinder (2) is used to drive the slide plate (3) to move along the outer sides of the two guide rails (5), characterized in that: A clamping assembly is provided at the top of the support platform (1) and between the two guide rails (5), and a clamping assembly is also provided at the bottom of the slide plate (3) and between the two guide rails (5) for clamping and fixing the object to be measured. A scale is provided on the outer surface of one of the guide rails (5), and a measuring assembly is slidably connected to the outer side of the guide rail (5) for measuring the stretching distance.

2. A metal material tensile fatigue testing device according to claim 1, characterized in that: The clamping assembly comprises a support pad (6), a clamp 1 (71), a clamp 2 (72), a connecting plate 1 (73), a connecting plate 2 (74) and an electric telescopic rod (75); the support pad (6) is fixedly installed on the top of the support platform (1); the clamp 1 (71) is fixedly installed on the outer side of the support pad (6); the connecting plate 1 (73) is fixedly connected to the outer side of the clamp 1 (71); the electric telescopic rod (75) is fixedly installed on the outer side of the connecting plate 1 (73); the clamp 2 (72) is slidably connected to the outer side of the support pad (6) and located at a relative position to the clamp 1 (71); the connecting plate 2 (74) is fixedly connected to the outer side of the clamp 2 (72); the telescopic end of the electric telescopic rod (75) is fixedly connected to the connecting plate 2 (74); the electric telescopic rod (75) is used to drive the clamp 2 (72) to approach or move away from the clamp 1 (71).

3. A metal material tensile fatigue testing device according to claim 2, characterized in that: The size of the first clamp (71) and the second clamp (72) is the same, and the second clamp (72) is closely attached to the outer surface of the support pad (6).

4. A metal material tensile fatigue testing device according to claim 1, characterized in that: The measuring assembly comprises a sliding sleeve (81), an insert rod (82), a reading disk (83) and a screw (84); the outer side of the guide rail (5) is slidably connected to the sliding sleeve (81); the outer side of the sliding sleeve (81) is plugged with the insert rod (82); the top of the sliding sleeve (81) is fixedly connected to the reading disk (83); and the inner wall of the sliding sleeve (81) is threadedly connected to the screw (84).

5. A metal material tensile fatigue testing device according to claim 4, characterized in that: The sliding sleeve (81) can rotate along the outer side of the guide rail (5); when the screw (84) is tightened, the sliding sleeve (81) can be fixed on the outer side of the guide rail (5).

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