Centering correction device for resin extensometer

Abstract

The utility model relates to the technical field of resin performance testing equipment, in particular to a centering correction device for a resin extensometer. The correction device is used for correcting a sample strip placed in a clamping seat of the resin extensometer and comprises two hollow stand columns which are oppositely arranged, a fixed beam located between the two stand columns and opposite supporting frames which are fixed to the lower ends of the two stand columns respectively, springs are arranged in the stand columns, and telescopic rods are fixed to the upper ends of the springs. The upper end of the telescopic rod extends out of the stand column, a supporting plate is fixed to the end of the telescopic rod, the upper side face of the supporting plate makes contact with the lower side face of the clamping base, a vertical positioning plate is fixed to the side, close to the sample strip, of the fixed beam, and a movable plate capable of sliding in the extending direction of the fixed beam is arranged on the fixed beam and used for pushing the sample strip to the side face of the positioning plate. The sample strip placed in the clamping seat of the resin extensometer is manually pushed to one side of the vertical positioning plate, so that the long axis of the sample and the axis of the resin extensometer are in the same straight line, and the accuracy of a test result is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of resin performance testing equipment, and in particular to a centering and calibration device for a resin tensile tester. Background Technology

[0002] A resin tensile tester, also known as a resin tensile strength tester, is a device used to test the mechanical properties of materials. It is primarily used to evaluate the physical and mechanical properties of materials under tension, such as the tensile strength, yield strength, and elongation of resin materials.

[0003] The resin tensile tester is suitable for various mechanical experiments and analyses of resin materials, such as stretching, bending, and peeling. After placing the upper and lower ends of the sample in the corresponding clamping parts of the resin tensile tester, the tensile strength of the sample is tested.

[0004] When clamping the sample, it is necessary to ensure that the long axis of the sample is in a straight line with the axis of the resin tensile tester; otherwise, the test performance results of the sample will deviate significantly. Currently, the samples are all placed manually during clamping, which cannot ensure that the long axis of the sample is in a straight line with the axis of the resin tensile tester, thus affecting the test results. Summary of the Invention

[0005] To address the problem that existing methods of manually placing samples during clamping cannot guarantee that the long axis of the sample is aligned with the axis of the resin tensile tester, thus affecting test results, this invention proposes a centering and correction device for a resin tensile tester. The device involves manually pushing the sample strip placed in the clamping seat of the resin tensile tester to one side of a vertical positioning plate using a movable plate that slides along the extension direction of a fixed beam. This ensures that the long axis of the sample is aligned with the axis of the resin tensile tester, improving the accuracy of the test results.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A centering and correction device for a resin tensile testing apparatus is disclosed for correcting a sample strip placed in the clamping seat of the apparatus. The device includes two hollow columns arranged opposite each other, a fixed beam located between the two columns, and opposing support frames fixed to the lower ends of the two columns. The end of the fixed beam is fixedly connected to the column. A spring is installed inside each column, and a telescopic rod is fixed to the upper end of the spring. The upper end of the telescopic rod extends out of the column, and a support plate is fixed to its end. The upper side of the support plate contacts the lower side of the clamping seat. The end of the support frame away from the column is fixed to the side of the clamping seat. A vertical positioning plate is fixed to the side of the fixed beam near the sample strip. A movable plate that can slide along the extension direction of the fixed beam is provided on the fixed beam for pushing the sample strip to the side of the positioning plate. The sample strip in the clamping seat can slide freely when not clamped.

[0008] Furthermore, a cap is fixed to the upper end of the column, and a sliding seat is fixed to the lower end of the telescopic rod. The sliding seat contacts the inner wall of the column, and the lower end of the sliding seat is connected and fixed to a spring. This prevents the telescopic rod from completely detaching from the column.

[0009] Furthermore, a groove is provided on the side of the fixed beam near the sample strip, and a slider is slidably connected in the groove. One end of the slider extends out of the groove and is connected and fixed to the moving plate. The groove is T-shaped, and the slider cooperates with the groove to realize the sliding of the moving plate on the fixed beam.

[0010] Furthermore, a limiting plate is fixed on the side of the movable plate near the sample strip.

[0011] Furthermore, the support frame is fixed to the side of the clamping seat by bolts.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] 1. This utility model is installed on both sides of the clamping seat of the resin tensile tester. The moving plate is manually pushed to slide on the fixed beam, and the sample strip placed in the clamping seat of the resin tensile tester is pushed to one side of the vertical positioning plate to center and correct the position of the sample strip, so as to make the long axis of the sample and the axis of the resin tensile tester be in a straight line, thereby improving the accuracy of the sample strip test results.

[0014] 2. This utility model has a limiting plate fixed on the side of the moving plate near the sample strip to limit the sliding of the sample strip in the clamping seat, thereby improving the stability of the sample strip during the sliding process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the centering and correction device for a resin stretching apparatus according to the present invention.

[0016] Figure 2 This utility model relates to a centering and correction device for a resin tensile testing machine. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 3 This is a front view of a centering and correction device for a resin stretching apparatus according to the present invention.

[0018] Figure 4 This utility model relates to a centering and correction device for a resin tensile testing machine. Figure 3 Structural cross-sectional view at point AA;

[0019] Figure 5 This utility model relates to a centering and correction device for a resin tensile testing machine. Figure 3 A partial structural cross-sectional view at point BB.

[0020] In the attached diagram, the following numbers are used: 1 is the clamping seat, 2 is the sample strip, 3 is the column, 4 is the fixed beam, 5 is the support frame, 6 is the spring, 7 is the telescopic rod, 8 is the support plate, 9 is the positioning plate, 10 is the moving plate, 11 is the cover, 12 is the sliding seat, 13 is the slide groove, 14 is the slider, and 15 is the limiting plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-5 As shown, this embodiment provides a centering and correction device for a resin tensile tester, used to correct the sample strip 2 placed in the clamping seat 1 of the resin tensile tester. The resin tensile tester in this embodiment is purchased externally and is an INSTRON model 5965B22437 tensile tester. The centering and correction device for a resin tensile tester includes two hollow columns 3 arranged opposite each other, a fixed beam 4 located between the two columns 3, and opposite support frames 5 respectively fixed to the lower ends of the two columns 3.

[0023] like Figure 1 As shown, the end of the fixed beam 4 is fixedly connected to the column 3. The column 3 is provided with a spring 6. A telescopic rod 7 is fixed to the upper end of the spring 6. The upper end of the telescopic rod 7 extends out of the column 3 and a support plate 8 is fixed to its end. The upper side of the support plate 8 contacts the lower side of the clamping seat 1. Under the action of the spring force of the spring 6, the support plate 8 always presses against the lower side of the upper clamping seat 1. The end of the support frame 5 away from the column 3 is fixed to the side of the clamping seat 1. The support frame 5 is fixed to the side of the clamping seat 1 by bolts.

[0024] like Figure 4 As shown, a cover 11 is fixed to the upper end of the column 3, and a sliding seat 12 is fixed to the lower end of the telescopic rod 7. The sliding seat 12 contacts the inner wall of the column 3, and the lower end of the sliding seat 12 is connected and fixed to the spring 6. This prevents the telescopic rod 7 from completely detaching from the column 3.

[0025] like Figure 1 As shown, a vertical positioning plate 9 is fixed on the side of the fixed beam 4 near the sample strip 2. The fixed beam 4 is provided with a movable plate 10 that can slide along the extension direction of the fixed beam 4, which is used to push the sample strip 2 to the side of the positioning plate 9.

[0026] like Figure 5 As shown, specifically, the fixed beam 4 has a T-shaped groove 13 on the side near the sample strip 2. A slider 14 that cooperates with the groove 13 is slidably connected in the groove 13. One end of the slider 14 extends out of the groove 13 and is connected and fixed to the moving plate 10.

[0027] like Figure 1As shown, two limiting plates 15 are fixed on the side of the moving plate 10 near the sample strip 2. The two limiting plates 15 and the moving plate 10 restrict the sample strip 2, so as to realize the stable movement of the sample strip 2 in the clamping seat 1.

[0028] The installation process of this utility model on the resin tensile tester is as follows: First, manually press down the support plate 8 and then place the support plate 8 against the lower side of the clamping seat 1 above, so that the sample strip 2 can contact the positioning plate 9 on one side of the fixed beam 4 when it moves. At this time, the support frame 5 can be fixed to the side of the clamping seat 1 below by bolts.

[0029] In use, the moving plate 10 and the limiting plate 15 are moved manually, which moves the sample strip 2 to the side of the vertical positioning plate 9. At this time, the sample strip 2 can be centered and corrected. Then the clamping seat 1 of the resin tensile tester clamps the sample strip 2, and the resin tensile tester can start the tensile test. This device has a simple structure and can improve the accuracy of the test results of the sample strip 2.

[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A centering and calibration device for a resin tensile tester, used for calibrating a sample strip (2) placed in the clamping seat (1) of the resin tensile tester, characterized in that, It includes two hollow columns (3) arranged opposite each other, a fixed beam (4) located between the two columns (3) and opposite support frames (5) fixed to the lower ends of the two columns (3) respectively. The end of the fixed beam (4) is fixedly connected to the column (3). A spring (6) is provided inside the column (3). A telescopic rod (7) is fixed to the upper end of the spring (6). The upper end of the telescopic rod (7) extends out of the column (3) and a support plate (8) is fixed to its end. The upper side of the support plate (8) contacts the lower side of the clamping seat (1). The end of the support frame (5) away from the column (3) is fixed to the side of the clamping seat (1). The fixed beam (4) has a vertical positioning plate (9) fixed on one side near the sample strip (2). The fixed beam (4) is provided with a movable plate (10) that can slide along the extension direction of the fixed beam (4) to push the sample strip (2) to the side of the positioning plate (9).

2. The centering and correction device for a resin tensile testing apparatus according to claim 1, characterized in that, The upper end of the column (3) is fixed with a cover (11), and the lower end of the telescopic rod (7) is fixed with a sliding seat (12). The sliding seat (12) contacts the inner wall of the column (3), and the lower end of the sliding seat (12) is connected and fixed to the spring (6).

3. The centering and correction device for a resin tensile testing apparatus according to claim 1, characterized in that, The fixed beam (4) has a groove (13) on the side near the sample strip (2). A slider (14) is slidably connected in the groove (13). One end of the slider (14) extends out of the groove (13) and is connected and fixed to the moving plate (10).

4. The centering and correction device for a resin tensile testing apparatus according to claim 1, characterized in that, A limiting plate (15) is fixed on the side of the movable plate (10) near the sample strip (2).

5. The centering and correction device for a resin tensile testing apparatus according to claim 1, characterized in that, The support frame (5) is fixed to the side of the clamping seat (1) by bolts.

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