Double-column computerized tensile testing machine

Abstract

The utility model discloses a double -column computer tension testing machine relates to tension test technical field, including bottom plate and tension assembly, bottom plate: the middle part is equipped with fixed component, tension assembly: contain support column, moving block, slide frame, threaded rod, spacing rod, moving frame, mounting bracket and motor, the upside of bottom plate is equipped with two corresponding support column, the side of support column is equipped with the strip -shaped groove, the inside slide coupling of strip -shaped groove has moving block, the side of support column is slidably connected with slide frame, the side of corresponding moving block is fixed with slide frame, can realize the quick, even and steady clamping of sample, effectively avoid the stress concentration and sample damage in the clamping process, have the function of automatic detection fracture and timely stop testing simultaneously, thereby improve the accuracy and reliability of test data, reduce energy waste and equipment loss.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, specifically a dual-column computer tensile testing machine. Background Technology

[0002] The dual-column computerized tensile testing machine is a professional piece of equipment widely used for testing the mechanical properties of materials. Its core structure employs a symmetrical dual-column design, ensuring stability and rigidity during high-speed operation or high-load testing. This design also effectively reduces lateral displacement and vibration issues common in single-column structures, thus guaranteeing the accuracy and repeatability of test data. This type of equipment typically consists of a precision mechanical transmission system, a sensor detection system, and a computer control and data processing system. It can perform static or dynamic mechanical tests such as tensile, compression, bending, and shear tests on various materials including metals, plastics, rubber, textiles, and composite materials. Through integrated computer control, users can set complex test procedures, monitor test curves in real time, automatically record key data, and generate standard-compliant test reports, significantly improving testing efficiency and automation levels. It plays an indispensable role in scientific research, quality inspection, and industrial production.

[0003] However, existing dual-column tensile testing machines still have some problems that urgently need to be solved in practical applications. On the one hand, the clamping mechanism of traditional equipment often has a limited adjustment range, making it difficult to achieve rapid, non-destructive, and uniform clamping for specimens with special shapes. This can easily lead to stress concentration at the clamping points, causing premature specimen failure and affecting the accuracy of the test results. On the other hand, most existing equipment relies on manual judgment of the specimen's fracture point and timely cessation of testing, which results in delayed response or overstretching. This not only wastes energy but may also damage the sensors. Therefore, we propose a dual-column computerized tensile testing machine. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dual-column computer tensile testing machine that can achieve rapid, uniform and stable clamping of the specimen, effectively avoid stress concentration and specimen damage during the clamping process, and has the function of automatically detecting fracture and stopping the test in time, thereby improving the accuracy and reliability of test data, reducing energy waste and equipment wear, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-column computer tensile testing machine, comprising a base plate and a tensile component; Base plate: A fixing component is installed in the middle; The tension assembly includes a support column, a moving block, a sliding frame, a threaded rod, a limiting rod, a moving frame, a mounting frame, and a motor. Two corresponding support columns are fixed to the upper side of the base plate. A strip-shaped groove is formed on the side of each support column, and a moving block is slidably connected inside the groove. A sliding frame is slidably connected to the side of each support column and fixed to the side of the corresponding moving block. A first threaded hole is formed in the middle of the left moving block, and a threaded rod is threadedly connected inside the first threaded hole. The threaded rod is rotatably connected inside the left strip-shaped groove. A limiting hole is formed in the middle of the right moving block, and a limiting rod is slidably connected inside the limiting hole. The limiting rod is fixed inside the right strip-shaped groove. A moving frame is fixed between the two sliding frames. A mounting frame is fixed to the upper side of the left support column, and a motor is installed inside the mounting frame. The output shaft of the motor is fixed to the upper end of the threaded rod. A detection component is installed in the middle of the moving frame. The input end of the motor is electrically connected to the output end of an external PLC controller. The tension assembly drives the tension gauge to move.

[0006] Furthermore, the detection assembly includes a tensile gauge, a connecting box, a first clamping plate, a bidirectional screw, and a turntable. The moving frame has a mounting hole in its center, inside which the tensile gauge is fixed. The lower end of the tensile gauge is fixed to the connecting box. Two corresponding first clamping plates are slidably connected inside the connecting box. The upper side of each first clamping plate has a second threaded hole with opposite threads. A bidirectional screw is threaded into the interior of each of the two second threaded holes. Rotary holes are provided on both the left and right sides of the connecting box, and a bidirectional screw is rotatably connected into the interior of each of the two rotary holes. The bidirectional screw is welded from two threaded posts with opposite threads and is threaded into the interior of the two second threaded holes. The upper end of the object to be tested is fixed by the two first clamping plates, and the tensile force is detected by the detection assembly.

[0007] Furthermore, it also includes a measuring component, which includes an infrared rangefinder and a reflector. The infrared rangefinder is installed on the upper left side of the support column on the right side, and the reflector is fixed on the upper side of the moving frame. The infrared rangefinder and the reflector correspond to each other. The input end of the infrared rangefinder is electrically connected to the output end of an external PLC controller. By setting the measuring component, the moving range of the moving frame is measured, thereby facilitating the determination of the length of the object to be tested when it breaks.

[0008] Furthermore, the fixing assembly includes a support frame, an electric telescopic rod, and a second clamping plate. An opening is provided in the middle of the base plate, and the support frame is fixed inside the opening. Two corresponding electric telescopic rods are installed on the left and right sides inside the support frame. The second clamping plate is fixed on the telescopic arm of the electric telescopic rod. The support frame corresponds to the connecting box. The input end of the electric telescopic rod is electrically connected to the output end of an external PLC controller. The lower end of the object to be tested is fixed by setting the fixing assembly.

[0009] Furthermore, two corresponding top rods are fixed on the upper side of the connecting box, and two corresponding pressure sensors are installed on the lower side of the movable frame. The two pressure sensors are in contact with the two top rods, and the pressure sensors are bidirectionally electrically connected to an external PLC controller. By setting the pressure sensors and top rods, the external PLC controller can quickly receive a signal when the test object breaks.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This dual-column computer tensile testing machine has the following advantages: 1. By adopting a structural design that uses a bidirectional screw to drive the first clamping plates on both sides to move towards or away from each other, the upper end of the sample is clamped quickly, evenly and stably, effectively avoiding the problem of local stress concentration or clamping damage to the sample caused by uneven force in traditional clamping methods.

[0011] 2. By utilizing the combination mechanism of the push rod and the pressure sensor, the pressure change can be detected in time at the moment the sample breaks, and the motor can be stopped quickly by the PLC controller. This not only avoids energy waste and equipment damage caused by excessive stretching, but also ensures the real-time capture and recording of the fracture point data, further improving the automation level of the testing process and the reliability of the results. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a front sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Base plate, 2. Tension assembly, 21. Support column, 22. Moving block, 23. Sliding frame, 24. Threaded rod, 25. Limiting rod, 26. Moving frame, 27. Mounting frame, 28. Motor, 3. Detection assembly, 31. Tension gauge, 32. Connecting box, 33. First clamping plate, 34. Bidirectional screw, 35. Turntable, 4. Measuring assembly, 41. Infrared rangefinder, 42. Reflector, 5. Fixing assembly, 51. Support frame, 52. Electric telescopic rod, 53. Second clamping plate, 6. Top rod, 7. Pressure sensor. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-3 This embodiment provides a technical solution: a dual-column computer tensile testing machine, including a base plate 1 and a tensile component 2; Base plate 1: A fixing component 5 is installed in the middle; Tension assembly 2 includes support columns 21, movable blocks 22, sliding frames 23, threaded rods 24, limiting rods 25, movable frames 26, mounting frames 27, and a motor 28. Two corresponding support columns 21 are fixed to the upper side of the base plate 1. A strip-shaped groove is formed on the side of each support column 21, and a movable block 22 is slidably connected inside the groove. A sliding frame 23 is slidably connected to the side of each support column 21 and fixed to the side of the corresponding movable block 22. A first threaded hole is formed in the middle of the left movable block 22, and a threaded rod 24 is threadedly connected inside the first threaded hole. The threaded rod 24 is rotatably connected inside the left strip-shaped groove. A limiting hole is formed in the middle of the right movable block 22, and a limiting rod 25 is slidably connected inside the limiting hole. The limiting rod 25 is fixed... Inside the right-side strip groove, a movable frame 26 is fixed between the two sliding frames 23. A mounting frame 27 is fixed to the upper side of the left-side support column 21. A motor 28 is installed inside the mounting frame 27, and the output shaft of the motor 28 is fixed to the upper end of the threaded rod 24. A detection component 3 is installed in the middle of the movable frame 26. The input end of the motor 28 is electrically connected to the output end of an external PLC controller. The detection component 3 includes a tension gauge 31, a connecting box 32, a first clamping plate 33, a bidirectional screw 34, and a turntable 35. A mounting hole is opened in the middle of the movable frame 26, and a tension gauge 31 is fixed inside the mounting hole. A connecting box 32 is fixed to the lower end of the tension gauge 31. Two corresponding first clamping plates 33 are slidably connected inside the connecting box 32. The upper side of component 3 has a second threaded hole with opposite threads. A bidirectional screw 34 is threaded into the two second threaded holes. Rotary holes are provided on both the left and right sides of the connecting box 32. A bidirectional screw 34 is rotatably connected to the interior of each of the two rotary holes. The bidirectional screw 34 is welded from two threaded posts with opposite threads. The bidirectional screw 34 is threaded into the interior of the two second threaded holes. The component also includes a measuring assembly 4, which contains an infrared rangefinder 41 and a reflector 42. The infrared rangefinder 41 is mounted on the upper left side of the right-side support column 21. A reflector 42 is fixed to the upper side of the moving frame 26. The infrared rangefinder 41 and the reflector 42 correspond to each other. The input terminal of the infrared rangefinder 41 is electrically connected to an external PLC controller. The output end of the fixed assembly 5 includes a support frame 51, an electric telescopic rod 52, and a second clamping plate 53. An opening is provided in the center of the base plate 1, and the support frame 51 is fixed inside the opening. Two corresponding electric telescopic rods 52 are installed on the left and right sides inside the support frame 51. The second clamping plate 53 is fixed on the telescopic arm of the electric telescopic rod 52. The support frame 51 corresponds to the connecting box 32. The input end of the electric telescopic rod 52 is electrically connected to the output end of an external PLC controller. By setting the fixed assembly 5, the lower end of the object to be tested is fixed. By setting the measuring assembly 4, the movement range of the moving frame 26 is measured, thereby facilitating the determination of the length of the object to be tested when it breaks. The upper end of the object to be tested is fixed by setting the two first clamping plates 33.The tensile force is detected by setting up detection component 3, and the tensile force gauge 31 is moved by setting up tensile component 2.

[0016] Specifically: two corresponding push rods 6 are fixed on the upper side of the connecting box 32, and two corresponding pressure sensors 7 are installed on the lower side of the moving frame 26. The two pressure sensors 7 are in contact with the two push rods 6. The pressure sensors 7 are bidirectionally electrically connected to the external PLC controller. By setting the pressure sensors 7 and push rods 6, the external PLC controller can quickly receive the signal when the test object breaks.

[0017] The working principle of the dual-column computer tensile testing machine provided by this utility model is as follows: First, the electric telescopic rod 52 in the fixing component 5 drives the second clamping plate 53 to move, clamping and fixing the lower end of the test object; then, the bidirectional screw 34 in the rotating detection component 3 drives the two first clamping plates 33 to move towards or away from each other, thereby clamping and fixing the upper end of the test object; the motor 28 in the tensile component 2 is started, driving the threaded rod 24 to rotate, causing the left moving block 22 to move up and down along the strip groove, while the moving frame 26 drives the right moving block 22 to slide along the limiting rod 25, thereby connecting the box 32 and the upper clamping part. The device rises steadily, applying tension to the test object. During this process, the tension gauge 31 in the detection component 3 detects the tension value in real time, and the infrared rangefinder 41 in the measurement component 4 measures the moving distance of the moving frame 26 in real time by detecting the displacement of the reflector 42, thereby obtaining the tensile deformation of the test object. When the test object breaks, the top rod 6 on the upper side of the connecting box 32 re-fits with the pressure sensor 7 on the lower side of the moving frame 26, causing a pressure change in the pressure sensor 7. At this time, the external PLC controller quickly receives the signal and stops the motor 28 from running, while recording the tension value and displacement at this time, thus completing the entire tensile test process.

[0018] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The motor 28, infrared rangefinder 41, electric telescopic rod 52 and pressure sensor 7 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the motor 28, infrared rangefinder 41 and electric telescopic rod 52 using methods commonly used in the prior art.

[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dual column computerized tensile testing machine characterized by: Includes a base plate (1) and a tension assembly (2); Base plate (1): A fixing component (5) is installed in the middle; Tension assembly (2): includes support column (21), moving block (22), sliding frame (23), threaded rod (24), limiting rod (25), moving frame (26), mounting frame (27) and motor (28). Two corresponding support columns (21) are fixed on the upper side of the base plate (1). A strip groove is provided on the side of the support column (21). The moving block (22) is slidably connected inside the strip groove. A sliding frame (23) is slidably connected on the side of the support column (21). The sliding frame (23) is fixed on the side of the corresponding moving block (22). A first threaded hole is provided in the middle of the moving block (22) on the left side. A threaded rod (24) is threadedly connected inside the first threaded hole. The threaded rod (24) is rotatably connected to the inside of the strip groove on the left side. A limit hole is opened in the middle of the moving block (22) on the right side. A limit rod (25) is slidably connected inside the limit hole. The limit rod (25) is fixed inside the strip groove on the right side. A moving frame (26) is fixed between the two sliding frames (23). A mounting frame (27) is fixed on the upper side of the support column (21) on the left side. A motor (28) is installed inside the mounting frame (27). The output shaft of the motor (28) is fixed to the upper end of the threaded rod (24). A detection component (3) is installed in the middle of the moving frame (26). The input end of the motor (28) is electrically connected to the output end of the external PLC controller.

2. The dual column computerized tensile testing machine of claim 1, wherein: The detection component (3) includes a tension gauge (31), a connecting box (32), a first clamping plate (33), a bidirectional screw (34), and a turntable (35). The moving frame (26) has a mounting hole in the middle, and the tension gauge (31) is fixed inside the mounting hole. The lower end of the tension gauge (31) is fixed to the connecting box (32). The connecting box (32) has two corresponding first clamping plates (33) slidably connected inside. The upper side of the first clamping plate (33) has a second threaded hole. The two second threaded holes have opposite threads. The two second threaded holes are threadedly connected to the bidirectional screw (34). The connecting box (32) has rotating holes on both the left and right sides. The two rotating holes are rotatably connected to the bidirectional screw (34). The bidirectional screw (34) is welded from two threaded columns with opposite threads. The bidirectional screw (34) is threadedly connected to the inside of the two second threaded holes.

3. The dual column computerized tensile testing machine of claim 2, wherein: It also includes a measuring component (4), which includes an infrared rangefinder (41) and a reflector (42). The infrared rangefinder (41) is installed on the upper left side of the support column (21) on the right side. The reflector (42) is fixed on the upper side of the moving frame (26). The infrared rangefinder (41) and the reflector (42) correspond to each other. The input end of the infrared rangefinder (41) is electrically connected to the output end of an external PLC controller.

4. The dual column computerized tensile testing machine of claim 2, wherein: The fixing component (5) includes a support frame (51), an electric telescopic rod (52), and a second clamping plate (53). The bottom plate (1) has an opening in the middle, and the support frame (51) is fixed inside the opening. Two corresponding electric telescopic rods (52) are installed on the left and right sides inside the support frame (51). The second clamping plate (53) is fixed on the telescopic arm of the electric telescopic rod (52). The support frame (51) corresponds to the connecting box (32). The input end of the electric telescopic rod (52) is electrically connected to the output end of an external PLC controller.

5. The dual column computerized tensile testing machine of claim 2, wherein: The upper side of the connecting box (32) is fixed with two corresponding top rods (6), and the lower side of the moving frame (26) is equipped with two corresponding pressure sensors (7). The two pressure sensors (7) are in contact with the two top rods (6), and the pressure sensors (7) are bidirectionally electrically connected to the external PLC controller.

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