A device for testing the interface shear strength of welded metal parts

Abstract

This utility model discloses a test device for the interfacial shear strength of welded metal parts, relating to the field of material performance testing technology. It includes a strength testing frame, a hydraulic cylinder, and a shear test sample. A microcontroller is mounted at the top of the strength testing frame. A hydraulic cylinder is located at the top inside the strength testing frame, and a vertical rod is installed at the output end of the hydraulic cylinder. A sample placement rack is installed at the bottom inside the strength testing frame, and a column is mounted at the top of the sample placement rack. A crossbeam connected to the column is fitted onto the outer wall of the column. A pressure sensor is mounted at the top of the sample placement rack, and a shear test sample is placed above the pressure sensor. A pressure sensor is attached to the top of the shear test sample using double-sided adhesive. The device uses a microcontroller to analyze and process the data, transmitting it to a display for visual viewing of the obtained load and deformation data, thus facilitating the operator's understanding of the interfacial shear strength of the shear test sample.

Description

Technical Field

[0001] This utility model relates to the field of material performance testing technology, specifically a device for testing the interfacial shear strength of welded metal parts. Background Technology

[0002] In materials science and engineering, interfacial shear strength is an important indicator for evaluating the bonding performance between different materials. Currently, existing interfacial shear strength testing devices suffer from problems such as complex structure, inconvenient operation, and low testing accuracy.

[0003] However, existing welding metal interface shear strength testing devices have the following problems during use: traditional testing methods cannot clamp sheared parts of different sizes. In addition, the testing methods are inconvenient to operate, have low accuracy, and cannot obtain shear data more stably to meet the needs of practical applications. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the interfacial shear strength of welded metal parts, so as to solve the related problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shear strength testing device for welded metal parts, comprising a strength testing frame, a hydraulic cylinder, and a shear test sample. A microcontroller is mounted at the top of the strength testing frame. A hydraulic cylinder is mounted at the top inside the strength testing frame, and a vertical rod is installed at the output end of the hydraulic cylinder. A sample placement rack is mounted at the bottom inside the strength testing frame, and a column is mounted at the top of the sample placement rack. A crossbeam connected to the column is fitted onto the outer wall of the column. A pressure sensor is mounted at the top of the sample placement rack, and a shear test sample is placed above the pressure sensor. A pressure sensor is attached to the top of the shear test sample using double-sided adhesive. A clamping mechanism for fixing the position of the shear test sample is provided inside the sample placement rack.

[0006] This technical solution provides a test device for interfacial shear strength of welded metal parts. The front end of the microcontroller is equipped with a display. The output terminals of the shear sensor and the pressure sensor are electrically connected to the input terminal of the microcontroller via wires. The output terminal of the microcontroller is electrically connected to the input terminal of the display via wires.

[0007] This technical solution provides a test device for the interfacial shear strength of welded metal parts. The clamping mechanism includes a movable groove and a slide rail. The movable groove is provided inside the sample placement rack, and the slide rail is provided at the bottom of the movable groove. A sample fixing screw is installed inside the sample placement rack through a bearing, and a slider that matches the inner wall of the slide rail is provided on the outer wall of the sample fixing screw.

[0008] This technical solution provides a test device for the interfacial shear strength of welded metal parts, wherein the inner wall of the slider engages with the outer wall of the sample fixing screw.

[0009] This technical solution provides a welding metal interface shear strength testing device, wherein a clamping block is installed at the top of the slider, and the outer wall of the clamping block is closely fitted with the outer wall of the shear test sample by setting anti-slip texture.

[0010] This technical solution provides a test device for interfacial shear strength of welded metal parts. One end of the sample fixing screw is equipped with a knob via a bearing, and the outer wall of the knob is inserted into and extends to a U-shaped positioning rod on one side of the sample placement rack.

[0011] Compared with the prior art, this utility model provides a device for testing the interfacial shear strength of welded metal parts, which has the following advantages:

[0012] 1. This utility model applies a vertical load to the shear test sample when the upright moves to contact it. At this time, the pressure sensor and the stress sensor can transmit the collected data to the microcontroller. After the microcontroller analyzes and processes the data, it will be transmitted to the display for intuitive viewing of the obtained load and deformation data, so that the operator can know the shear strength of the interface of the shear test sample.

[0013] 2. This utility model uses a rotating knob to move a slider within a slide rail, which in turn moves a clamping block to hold the shear test sample. The other side of the shear test sample contacts the inner wall of the sample placement rack. This structure facilitates the clamping and fixing of shear test samples of different sizes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal circuit structure of this utility model.

[0017] In the diagram: 1. Strength testing frame; 2. Microcontroller; 3. Hydraulic cylinder; 4. Sample placement rack; 5. Column; 6. Pole; 7. Horizontal beam; 8. Movable groove; 9. Slide rail; 10. Sample fixing screw; 11. Slider; 12. Knob; 13. U-shaped positioning rod; 14. Shear test sample; 15. Clamping block; 16. Pressure sensor; 17. Display; 18. Pressure sensor. 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] Example 1, such as Figure 1-2 As shown, this utility model provides a technical solution: a shear strength testing device for welded metal parts, including a strength testing frame 1, a hydraulic cylinder 3, and a shear test sample 14. A microcontroller 2 is installed at the top of the strength testing frame 1. The hydraulic cylinder 3 is installed at the top inside the strength testing frame 1, and a vertical rod 6 is installed at the output end of the hydraulic cylinder 3. A sample placement rack 4 is installed at the bottom inside the strength testing frame 1, and a column 5 is installed at the top of the sample placement rack 4. A crossbeam 7 connected to the vertical rod 6 is fitted onto the outer wall of the column 5. A pressure sensor 18 is installed at the top of the sample placement rack 4, and the shear test sample 14 is placed above the pressure sensor 18. A pressure plate sensor 16 is attached to the top of the shear test sample 14 with double-sided adhesive. A display 17 is installed at the front end of the microcontroller 2. The pressure plate sensor 16 and the pressure sensor 18 output... The output terminals are electrically connected to the input terminals of the microcontroller 2 via wires, and the output terminals of the microcontroller 2 are electrically connected to the input terminals of the display 17 via wires. The operator attaches the shear test sensor 16 to the outer wall of the shear test sample 14, and the shear test sample 14 is placed above the pressure sensor 18. After being fixed by the clamping mechanism, the hydraulic cylinder 3 can be activated to push the crossbeam 7 to move vertically downward on the outer wall of the column 5. When the column 6 moves to contact the shear test sample 14, a vertical load is applied to the shear test sample 14. At this time, the pressure sensor 18 and the shear test sensor 16 can transmit the collected data to the microcontroller 2. After being analyzed and processed by the microcontroller 2, the data is transmitted to the display 17 for intuitive viewing of the obtained load and deformation data, so that the operator can know the interface shear strength of the shear test sample 14.

[0020] Example 2, as Figure 1-3As shown, this utility model provides a technical solution: a welding metal interface shear strength testing device, including a sample placement rack 4 with a clamping mechanism inside for fixing the position of the shear test sample 14. The clamping mechanism includes a movable groove 8 and a slide rail 9. The movable groove 8 is opened inside the sample placement rack 4, and the slide rail 9 is provided at the bottom end of the movable groove 8. A sample fixing screw 10 is installed inside the sample placement rack 4 through a bearing, and a slider 11 adapted to the inner wall of the slide rail 9 is provided on the outer wall of the sample fixing screw 10. The inner wall of the slider 11 meshes with the outer wall of the sample fixing screw 10. A clamping block 15 is installed at the top, and the outer wall of the clamping block 15 is closely fitted with the outer wall of the shear test sample 14 by setting anti-slip texture. One end of the sample fixing screw 10 is equipped with a knob 12 through a bearing, and the outer wall of the knob 12 is inserted into and extends to the U-shaped positioning rod 13 on one side of the sample placement rack 4. By rotating the knob 12, the slider 11 is driven to move in the slide rail 9, thereby the slider 11 drives the clamping block 15 to clamp the shear test sample 14, while the other side of the shear test sample 14 contacts the inner wall of the sample placement rack 4. This structure facilitates the clamping and fixing of shear test samples 14 of different sizes.

[0021] Working principle: First, connect the external power supply. The operator attaches the pressure sensor 16 to the outer wall of the shear test sample 14, which is placed above the pressure sensor 18. By rotating the knob 12, the slider 11 moves within the slide rail 9, thereby causing the clamping block 15 to clamp the shear test sample 14. The other side of the shear test sample 14 contacts the inner wall of the sample placement rack 4. This structure facilitates the clamping and fixing of shear test samples 14 of different sizes. After fixing, the hydraulic cylinder 3 can be activated to push the crossbeam 7 to move vertically downward on the outer wall of the column 5. When the column 6 moves to contact the shear test sample 14, a vertical load is applied to the shear test sample 14. At this time, the pressure sensor 18 and the pressure sensor 16 can transmit the collected data to the microcontroller 2. After analysis and processing by the microcontroller 2, the data is transmitted to the display 17 for visual viewing of the obtained load and deformation data, thus allowing the operator to know the interface shear strength of the shear test sample 14.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A shear strength testing device for welded metal interfaces, comprising a strength testing frame (1), a hydraulic cylinder (3), and a shear test sample (14), characterized in that: The strength test frame (1) is equipped with a microcontroller (2) at the top. The strength test frame (1) is equipped with a hydraulic cylinder (3) at the top inside, and a pole (6) is installed at the output end of the hydraulic cylinder (3). The strength test frame (1) is equipped with a sample placement rack (4) at the bottom inside, and a column (5) is installed at the top of the sample placement rack (4). A crossbeam (7) connected to the pole (6) is sleeved on the outer wall of the column (5). A pressure sensor (18) is installed at the top of the sample placement rack (4), and a shear test sample (14) is placed above the pressure sensor (18). A shear test sensor (16) is attached to the top of the shear test sample (14) with double-sided adhesive. The sample placement rack (4) is equipped with a clamping mechanism for fixing the position of the shear test sample (14).

2. The device for testing the interfacial shear strength of welded metal parts according to claim 1, characterized in that: The microcontroller (2) is equipped with a display (17) at its front end. The output terminals of the pressure sensor (16) and the pressure sensor (18) are electrically connected to the input terminal of the microcontroller (2) via wires. The output terminal of the microcontroller (2) is electrically connected to the input terminal of the display (17) via wires.

3. The device for testing the interfacial shear strength of welded metal parts according to claim 1, characterized in that: The clamping mechanism includes a movable groove (8) and a slide rail (9). The movable groove (8) is provided inside the sample placement rack (4), and the slide rail (9) is provided at the bottom of the movable groove (8). The sample fixing screw (10) is installed inside the sample placement rack (4) through a bearing, and the outer wall of the sample fixing screw (10) is provided with a slider (11) that is adapted to the inner wall of the slide rail (9).

4. The device for testing the interfacial shear strength of welded metal parts according to claim 3, characterized in that: The inner wall of the slider (11) engages with the outer wall of the sample fixing screw (10).

5. The device for testing the interfacial shear strength of welded metal parts according to claim 3, characterized in that: The top of the slider (11) is equipped with a clamping block (15), and the outer wall of the clamping block (15) is closely fitted with the outer wall of the shear test sample (14) by setting anti-slip texture.

6. The device for testing the interfacial shear strength of welded metal parts according to claim 3, characterized in that: One end of the sample fixing screw (10) is fitted with a knob (12) via a bearing, and the outer wall of the knob (12) is inserted into and extends to the U-shaped positioning rod (13) on one side of the sample placement rack (4).

Images