Sample feeding and clamping fixture for compression test of thermal simulation testing machine

Abstract

The utility model discloses a sample feeding and clamping fixture for a compression experiment of a thermal simulation testing machine, which is used for feeding a sample into an anvil head on a workbench of the thermal simulation testing machine and comprises a base, a guide rail barrel, a screw rod, a sliding block, an upper clamping arm and a lower clamping arm, wherein the reference surface is arranged on one side of the main body part, and the reference surface is suitable for abutting against the side surface of a workbench of the thermal simulation testing machine; the guide rail cylinder is vertically fixed on the main body part of the base, and a radial through groove extending in the axial direction is formed in the guide rail cylinder; the screw rod is rotatably and vertically mounted in the radial through groove of the guide rail barrel, and the upper end of the screw rod extends out of the top of the guide rail barrel; the sliding block is arranged in the radial through groove of the guide rail cylinder in a sliding mode and matched with the screw in a threaded mode. The device can improve the precision and efficiency of sample clamping and conveying, is suitable for samples with different sizes, and improves the accuracy and reliability of experiments.

Description

Technical Field

[0001] The utility model relates to a sample feeding and clamping fixture for a compression test of a thermal simulation testing machine, belonging to the technical field of clamping fixtures. Background Art

[0002] The Gleeble-3500 thermal / mechanical simulation testing machine is an analytical system used for testing the physical properties of hot-processed metal materials and simulating processes. This equipment enables simulations of deformation or phase transformation behavior of small metal specimens under varying heat and stress conditions. These experiments enable process optimization and performance research in the laboratory, with the resulting data then applied to actual production. This significantly reduces the cost of developing new materials and processes, improves efficiency, and shortens development cycles, making the Gleeble-3500 a key instrument for physical property research.

[0003] Among them, steel rolling simulation experiment is one of the important applications of this equipment. By conducting compression tests on specimens under different temperature and deformation rate conditions, the true stress-true strain curve of the specimens is studied to explore the influence of temperature and deformation rate on deformation resistance. These data provide a reference basis for the optimization of the rolling process. The specimens used in compression experiments are usually small, with an aspect ratio of 1.5. Studies have shown that the size of the specimen has a significant impact on the experimental results. Therefore, the commonly used specimen sizes in compression experiments are φ8mm×12mm and φ10mm×15mm. In order to ensure the convenience and precise positioning of the specimen installation, it is particularly important to design a clamping device that can adapt to different specimen sizes.

[0004] After searching the prior art, we discovered Chinese patent publication number CN203965237U, which discloses a clamping device for compression testing in a resistance-type thermal simulation tester. This patent uses a sample feeder to mount the specimen between two anvils. During use, we discovered that currently, the sample feeder is mostly operated manually, and manual clamping can easily cause specimen misalignment or damage, affecting the accuracy of experimental results and increasing experimental preparation time. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide a sample feeding and clamping fixture for compression experiment of thermal simulation testing machine, which can improve the accuracy and efficiency of sample clamping and feeding, adapt to samples of different sizes, and improve the accuracy and reliability of the experiment.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a sample feeding and clamping fixture for compression test of thermal simulation testing machine, which is used to feed the sample into the anvil head on the workbench of the thermal simulation testing machine, comprising:

[0007] A base, the base comprising a main body and a reference surface, wherein the reference surface is provided on one side of the main body, and the reference surface is adapted to abut against a side surface of a workbench of the thermal simulation test machine;

[0008] A guide rail cylinder, the guide rail cylinder is vertically fixed to the main body of the base, and the guide rail cylinder is provided with a radial through groove extending in the axial direction;

[0009] a screw rod, the screw rod being rotatably mounted vertically in the radial through groove of the guide rail cylinder, with the upper end of the screw rod extending out of the top of the guide rail cylinder;

[0010] A slider, the slider being slidably disposed in the radial through-groove of the guide rail cylinder and being engaged with the screw thread, and being adapted to drive the slider to move axially along the radial through-groove by rotating the screw;

[0011] an upper clamping arm, the upper clamping arm being fixed to the upper portion of the guide rail cylinder;

[0012] a lower clamping arm, the lower clamping arm passing through a radial through slot and fixed on the slider;

[0013] Wherein, a clamping space is formed between the upper clamping arm and the lower clamping arm;

[0014] The screw is adapted to rotate and drive the slider and the lower clamping arm connected to the slider to move relative to the upper clamping arm, so as to confine the sample in the clamping space;

[0015] When the reference surface of the base abuts against the side of the workbench of the thermal simulation tester, the axis of the sample on the clamping space coincides with the axis of the anvil head of the thermal simulation tester.

[0016] Furthermore, in order to better abut the base's reference surface against the side of the workbench of the thermal simulation test machine, the thermal simulation test machine compression test sample clamping fixture also includes at least one limit baffle, which is vertically fixed to one side of the base's reference surface.

[0017] Furthermore, there are two limit baffles.

[0018] Furthermore, in order to provide an intuitive visual reference, the radial through groove of the guide rail cylinder is provided with equally spaced scale lines along the axial direction, and the length of the scale lines corresponds to the moving path of the slider.

[0019] Furthermore, the base is provided with a fixing block, and the fixing block is provided with a mounting groove;

[0020] The guide rail cylinder is arranged in the installation groove;

[0021] The fixing block is provided with at least one fixing hole;

[0022] The guide rail cylinder is provided with at least one connecting hole corresponding to the fixing hole;

[0023] The sample delivery and clamping fixture for the compression test of the thermal simulation test machine further comprises a fastener, which passes through the connecting hole and the fixing hole to detachably connect the guide rail cylinder and the base.

[0024] Furthermore, the lower clamping arm includes a connecting portion and a supporting portion, wherein:

[0025] The connecting portion is fixedly connected to the slider;

[0026] The support portion is provided with an extension section extending from the connection portion in an obliquely upward direction and a bearing section connected to the extension section and parallel to the base.

[0027] Furthermore, the upper clamping arm includes a fixed section, a bent elastic section and a clamping section, wherein:

[0028] The fixed section is fixedly connected to the upper portion of the guide rail cylinder;

[0029] The bent elastic section is arranged between the fixing section and the clamping section;

[0030] The clamping section includes a first bending portion and a second bending portion, wherein:

[0031] The first bent portion extends outward from the bent elastic section and bends to form a first contact surface for clamping the sample;

[0032] The second bending portion is connected to the first bending portion and is bent inward to form a stop surface for limiting position.

[0033] Furthermore, an adjusting portion is provided at the top end of the screw, and the adjusting portion includes a handle fixed to the top end of the screw, and the handle is disc-shaped.

[0034] By adopting the above technical solution, the utility model has the following beneficial effects:

[0035] In the present invention, when in use, the specimen is first placed in the clamping space formed between the upper clamping arm and the lower clamping arm. By rotating the screw, the slider is driven to adjust the position of the lower clamping arm, thereby firmly confining the specimen in the clamping space. Subsequently, the base is moved so that its reference surface is close to the side of the workbench of the thermal simulation tester, ensuring that the axis of the specimen in the clamping space is aligned with the axis of the anvil head of the thermal simulation tester, thereby completing the accurate feeding of the specimen. The entire process not only simplifies the clamping process, but also significantly improves the clamping efficiency and test accuracy.

[0036] In summary, the sample feeding and clamping fixture for compression test of thermal simulation testing machine of the utility model has the advantages of simple structure, convenient operation, precise positioning, strong adaptability, etc., and can significantly improve the installation efficiency and accuracy of thermal simulation test. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the three-dimensional structure of the sample feeding and clamping fixture for the compression test of the thermal simulation testing machine of the utility model. Figure 1 ;

[0038] Figure 2 for Figure 1 A partial enlarged view of

[0039] Figure 3 This is a schematic diagram of the three-dimensional structure of the sample feeding and clamping fixture for the compression test of the thermal simulation testing machine of the utility model. Figure 2 ;

[0040] Figure 4 for Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0041] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0042] like Figure 1-4 As shown, a sample feeding and clamping fixture for a compression test of a thermal simulation test machine is used to feed a sample into an anvil head on a workbench of the thermal simulation test machine, comprising:

[0043] The base 1 includes a main body and a reference surface, wherein the reference surface is provided on one side of the main body and is suitable for abutting against the side of the workbench of the thermal simulation test machine;

[0044] The guide rail cylinder 2 is vertically fixed to the main body of the base 1 and is provided with a radial through groove extending in the axial direction;

[0045] The screw rod 3 is rotatably mounted vertically in the radial through groove of the guide rail cylinder 2, and the upper end of the screw rod 3 extends out of the top of the guide rail cylinder 2;

[0046] The slider 4 is slidably disposed in the radial through-groove of the guide rail cylinder 2 and is threadably engaged with the screw 3. The screw 3 is rotated to drive the slider 4 to move axially along the radial through-groove;

[0047] The upper clamping arm 5 is fixed to the upper part of the guide rail cylinder 2;

[0048] The lower clamping arm 6 is fixed on the slider 4 through the radial through-slot;

[0049] Among them, a clamping space is formed between the upper clamping arm 5 and the lower clamping arm 6;

[0050] The screw 3 is adapted to rotate and drive the slider 4 and the lower clamping arm 6 connected to the slider 4 to move relative to the upper clamping arm 5 to confine the sample in the clamping space;

[0051] When the reference surface of the base 1 abuts against the side of the workbench of the thermal simulation tester, the axis of the sample in the clamping space coincides with the axis of the anvil head of the thermal simulation tester.

[0052] In this embodiment, if Figure 1-2 and Figure 4 As shown, when in use, first place the sample in the clamping space formed between the upper clamping arm 5 and the lower clamping arm 6. By rotating the screw 3, the slider 4 is driven to adjust the position of the lower clamping arm 6, so that the sample is firmly confined in the clamping space. Subsequently, the base 1 is moved so that its reference surface is close to the side of the workbench of the thermal simulation test machine, ensuring that the axis of the sample in the clamping space is aligned with the axis of the anvil head of the thermal simulation test machine, and completing the accurate delivery of the sample. The whole process not only simplifies the clamping process, but also significantly improves the clamping efficiency and test accuracy.

[0053] Specifically, such as Figure 1 and Figure 3 As shown, the sample feeding and clamping fixture for the compression test of the thermal simulation test machine further includes two limit baffles 7 , which are vertically fixed to one side of the reference surface of the base 1 .

[0054] Specifically, such as Figure 3 As shown, there are two limit baffles 7.

[0055] In this embodiment, if Figure 3 As shown, the limit baffles 7 can ensure the accurate positioning of the clamping fixture on the workbench of the thermal simulation test machine. During use, the operator uses the two limit baffles 7 to abut against the side of the workbench of the thermal simulation test machine for precise positioning, ensuring that the position can be consistent every time it is installed.

[0056] Specifically, such as Figure 2 As shown, the radial through groove of the guide rail cylinder 2 is provided with equally spaced scale lines along the axial direction, and the length of the scale lines corresponds to the moving path of the slider 4.

[0057] In this embodiment, if Figure 2 and Figure 4 As shown, the equally spaced scale lines provide an intuitive visual reference for the operator, making the position adjustment of the slider 4 more precise and controllable. During use, the operator can accurately determine the current position of the slider 4 by observing the scale lines, thereby precisely controlling the clamping space between the upper clamping arm 5 and the lower clamping arm 6.

[0058] To further enhance the practicality of the scale, numerical markings can be added next to the scale lines to facilitate quicker reading of position information. Alternatively, scale lines of different colors or thicknesses can be used to mark commonly used specimen size locations.

[0059] Specifically, such as Figure 1-2 As shown, a fixing block is provided on the base 1, and a mounting groove is provided on the fixing block;

[0060] The guide rail cylinder 2 is arranged in the mounting groove;

[0061] The fixing block is provided with two fixing holes;

[0062] The guide rail cylinder 2 is provided with two connection holes corresponding to the fixing holes;

[0063] The sample delivery and clamping fixture for the compression test of the thermal simulation test machine further includes a fastener 8 , which passes through the connecting hole and the fixing hole to detachably connect the guide rail cylinder 2 and the base 1 .

[0064] In this embodiment, if Figure 1-2 As shown, a detachable connection is adopted between the base 1 and the guide rail cylinder 2 of the sample feeding and clamping fixture of the thermal simulation testing machine compression test.

[0065] In some embodiments, the number of fixing holes and connecting holes is not limited to two and can be set according to specific needs.

[0066] Specifically, such as Figure 1-2 and Figure 4 As shown, the lower clamping arm 6 includes a connecting portion and a supporting portion, wherein:

[0067] The connecting portion is fixedly connected to the slider 4;

[0068] The supporting portion is provided with an extension section extending from the connecting portion in an obliquely upward direction and a bearing section connected to the extension section and parallel to the base 1 .

[0069] Specifically, such as Figure 1-2 and Figure 4 As shown, the upper clamping arm 5 includes a fixed section, a bent elastic section and a clamping section, wherein:

[0070] The fixed section is fixedly connected to the upper portion of the guide rail cylinder 2;

[0071] The bending elastic section is arranged between the fixing section and the clamping section;

[0072] The clamping section includes a first bent portion and a second bent portion, wherein:

[0073] The first bent portion extends outward from the bent elastic section and bends to form a first contact surface for clamping the sample;

[0074] The second bending portion is connected to the first bending portion and bends inward to form a stop surface for limiting.

[0075] In this embodiment, if Figure 4 As shown, the lower clamping arm 6 is made of a thicker plate to support the sample and bear the load, while the upper clamping arm 5 is made of a relatively thin plate to provide the upper clamping arm 5 with a certain elastic deformation capacity.

[0076] The sample is arranged on the bearing section and is abutted by the first contact surface and the stop surface, thereby forming a clamping space as a whole.

[0077] Specifically, such as Figure 2 As shown, an adjusting portion is provided at the top end of the screw rod 3 , and the adjusting portion includes a handle 31 fixed to the top end of the screw rod 3 , and the handle 31 is disc-shaped.

[0078] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sample feeding and clamping fixture for compression test of thermal simulation test machine, used for feeding the sample into the anvil head on the workbench of thermal simulation test machine, characterized in that: include: A base (1), the base (1) being provided with a main body and a reference surface, wherein the reference surface is provided on one side of the main body, and the reference surface is suitable for abutting against a side surface of a workbench of the thermal simulation test machine; A guide rail cylinder (2), the guide rail cylinder (2) being vertically fixed on the main body of the base (1), and the guide rail cylinder (2) being provided with a radial through groove extending in the axial direction; a screw rod (3), the screw rod (3) being rotatably mounted vertically in a radial through groove of the guide rail cylinder (2), with the upper end of the screw rod (3) extending out of the top of the guide rail cylinder (2); A slider (4), the slider (4) being slidably disposed in the radial through-groove of the guide rail cylinder (2) and being threadably engaged with the screw rod (3), and being adapted to drive the slider (4) to move axially along the radial through-groove by rotating the screw rod (3); An upper clamping arm (5), wherein the upper clamping arm (5) is fixed to the upper portion of the guide rail cylinder (2); a lower clamping arm (6), the lower clamping arm (6) passing through a radial through-slot and fixed on the slider (4); Wherein, a clamping space is formed between the upper clamping arm (5) and the lower clamping arm (6); The screw (3) is suitable for rotating and driving the slider (4) and the lower clamping arm (6) connected to the slider (4) to move relative to the upper clamping arm (5) to limit the sample in the clamping space; When the reference surface of the base (1) abuts against the side of the workbench of the thermal simulation test machine, the axis of the sample on the clamping space coincides with the axis of the anvil head of the thermal simulation test machine.

2. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1 is characterized in that: It also includes at least one limiting baffle (7), which is vertically fixed to one side of the reference surface of the base (1).

3. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 2 is characterized in that: There are two limit baffles (7).

4. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1, characterized in that: The radial through groove of the guide rail cylinder (2) is provided with equally spaced scale lines along the axial direction, and the length of the scale lines corresponds to the moving path of the slider (4).

5. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1, characterized in that: The base (1) is provided with a fixing block, and the fixing block is provided with a mounting groove; The guide rail cylinder (2) is arranged in the installation groove; The fixing block is provided with at least one fixing hole; The guide rail cylinder (2) is provided with at least one connection hole corresponding to the fixing hole; It also includes a fastener (8), which passes through the connecting hole and the fixing hole to detachably connect the guide rail cylinder (2) and the base (1).

6. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1, characterized in that: The lower clamping arm (6) comprises a connecting portion and a supporting portion, wherein: The connecting portion is fixedly connected to the slider (4); The support portion is provided with an extension section extending from the connection portion in an obliquely upward direction and a bearing section connected to the extension section and parallel to the base (1).

7. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1, characterized in that: The upper clamping arm (5) comprises a fixed section, a bent elastic section and a clamping section, wherein: The fixed section is fixedly connected to the upper portion of the guide rail cylinder (2); The bent elastic section is arranged between the fixing section and the clamping section; The clamping section includes a first bending portion and a second bending portion, wherein: The first bent portion extends outward from the bent elastic section and bends to form a first contact surface for clamping the sample; The second bending portion is connected to the first bending portion and is bent inward to form a stop surface for limiting position.

8. The sample feeding and clamping fixture for compression test of thermal simulation testing machine according to claim 1, characterized in that: The top end of the screw rod (3) is provided with an adjusting portion, and the adjusting portion comprises a handle (31) fixed to the top end of the screw rod (3), and the handle (31) is disc-shaped.

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