Material tensile experiment device
The material stretching test device addresses the issue of metal material detachment during tensile testing by using a motor-driven clamping mechanism and protective features, ensuring stable clamping and safety in metal material testing.
Patent Information
- Application Number
- CN202420758584.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-12
AI Technical Summary
Existing metal material tensile test devices struggle with the detachment of round metal materials during testing due to limited manual force application, leading to instability and failure of the test.
A material stretching test device with a mechanism involving threaded rods, bevel gears, and motors to ensure continuous clamping force, combined with a protective box to contain debris and ensure worker safety.
Stable clamping of metal materials of various sizes, including rounds, and safety features to prevent debris splash during testing, enhancing test reliability and worker safety.
Smart Images
Figure CN222212490U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stretching test devices, in particular to a material stretching test device. Background Art
[0002] During the production process of metal materials, it is necessary to test the tensile properties of the produced metal materials in order to judge their quality and performance in the subsequent production and use process, and to observe whether the metal materials are qualified, so as to determine whether the metal materials can bear the subsequent working pressure. When testing the tensile properties of metals, a detection device is required.
[0003] The existing patent (publication number: CN218646743U) discloses a metal material tensile performance testing device, including a testing platform, two symmetrically distributed testing seats are arranged on the top of the testing platform, one of the testing seats is fixed to the top of the testing platform, and a moving block is fixed to the bottom of the other testing seat. A slide groove is provided on the top of the testing platform. By controlling the rotation of the servo motor, one of the testing seats can be driven to move, and then the metal material can be tested for tensile strength. The operation is relatively convenient and has good tensile strength. The two ends of the metal material are fixed by the limit assembly, which can ensure the stability of the metal material during the tensile test. At the same time, it is also convenient to clamp and position the metal material, thereby improving the detection efficiency.
[0004] The above patented technology controls the two clamps to move closer to each other by turning a knob to clamp the ends of the metal material. However, when fixing the metal material, especially the round metal material, it is fixed by two clamps, and the force of manually turning the knob is limited. During the stretching process, it is very easy for the metal material to detach from the outer surface of the clamp, resulting in failure of the tensile performance test. Therefore, a material stretching test device is proposed. Utility Model Content
[0005] In view of the deficiencies of the prior art, the utility model provides a material tensile test device to solve the problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material stretching test device, comprising a test bench, two stretching plates and two square frames, the upper and lower outer surfaces of the two square frames are fixedly connected to support frames, the bottom outer surface of the lower support frame is respectively fixedly connected to the top outer surfaces of the two stretching plates, threaded rods are rotatably penetrated through the surrounding outer surfaces of the square frames, a first motor is fixedly installed on the top outer surface of the upper support frame, the output end of the first motor is fixedly connected to the outer surface of the upper threaded rod, the outer surfaces of the four threaded rods are threadedly connected to threaded plates, the outer surfaces of the threaded plates are fixedly connected to the fixing frames, and the outer surface of the fixing frames is fixedly connected to the clamping plates.
[0007] Furthermore, the outer surfaces of the upper threaded rod and the lower threaded rod are fixedly sleeved with active bevel gears, the outer surfaces of the left and right sides of the upper support frame are rotatably penetrated by first rotating shafts, the outer surfaces of the two first rotating shafts and the outer surfaces of the left and right threaded rods are fixedly sleeved with first transmission wheels, and the first belts are sleeved between the two transmission wheels in the left and right groups;
[0008] A second rotating shaft is rotatably penetrated on the left outer surface of the support frame below, and the outer surfaces of the left threaded rod and the second rotating shaft are fixedly sleeved with a second transmission wheel, and a second belt is sleeved between the outer surfaces of the two second transmission wheels, and the outer surfaces of the second rotating shaft and the two first rotating shafts are fixedly sleeved with driven bevel gears, the upper driving bevel gear is movably meshed with the outer surfaces of the two upper driven bevel gears, and the lower driving bevel gear is movably meshed with the outer surfaces of the lower driven bevel gears.
[0009] Furthermore, a protection box is fixedly connected to the top outer surface of the test bench, a box door is opened on the outer surface of the protection box, and the protection box is transparent.
[0010] Furthermore, two vertical plates are fixedly connected to the top outer surface of the test bench, and the opposite outer surfaces of the two vertical plates are rotatably connected with forward and reverse screw rods. A second motor is fixedly installed on the outer surface of the right vertical plate, and the output end of the second motor is fixedly connected to the outer surfaces of the forward and reverse screw rods. The two stretching plates are both threadedly connected to the outer surfaces of the forward and reverse screw rods.
[0011] Furthermore, the clamping plate is arranged in a right-angle trapezoidal shape, and a plurality of friction strips are fixedly arranged on the outer surface of the clamping plate.
[0012] Furthermore, two limiting rods are fixedly connected to the inner outer surfaces of the four sides of the square frame, and the threaded rod is movably sleeved on the outer surfaces of the two limiting rods.
[0013] Furthermore, two sliding rods are fixedly connected to the opposite outer surfaces of the two vertical plates, and the two stretching plates are movably sleeved on the outer surfaces of the two sliding rods.
[0014] Furthermore, a marking rod is fixedly connected to the top outer surface of the test bench, and scale lines are provided on the outer surface of the marking rod.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The material stretching test device drives the upper threaded rod to rotate through the first motor, and cooperates with the first rotating shaft, the second rotating shaft, the first transmission wheel, the first belt, the second transmission wheel and the second belt to make the four threaded rods rotate simultaneously, thereby driving the threaded plate, so that the clamping plate clamps the metal material, and during the working process, the clamping plate can always apply force to the metal material, thereby ensuring the stability of the metal material during the stretching test.
[0017] 2. The material tensile test device blocks the debris that may splash during the tensile test by setting up an anti-slip box and closing the box door to ensure the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;
[0020] Figure 3 It is a schematic diagram of the square frame of the utility model and its related structures;
[0021] Figure 4 This is a schematic diagram of the threaded plate of the utility model and its related structures.
[0022] In the figure: 1. test bench; 2. stretching plate; 3. support frame; 4. square frame; 5. threaded rod; 6. first rotating shaft; 7. second rotating shaft; 8. first transmission wheel; 9. first belt; 10. second transmission wheel; 11. second belt; 12. friction strip; 13. threaded plate; 14. fixing frame; 15. clamping plate; 16. first motor; 17. driving bevel gear; 18. driven bevel gear; 19. protective box; 20. box door; 21. forward and reverse screw rods; 22. second motor. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Please refer to Figure 1-Figure 4 The utility model provides a technical solution: a material stretching test device, including a test bench 1, two stretching plates 2 and two square frames 4, the upper and lower outer surfaces of the two square frames 4 are fixedly connected with support frames 3, the bottom outer surface of the lower support frame 3 is respectively fixedly connected with the top outer surfaces of the two stretching plates 2, and the outer surfaces of the four sides of the square frame 4 are all rotatably penetrated by threaded rods 5, the top outer surface of the upper support frame 3 is fixedly installed with a first motor 16, the output end of the first motor 16 is fixedly connected with the outer surface of the upper threaded rod 5, the outer surfaces of the four threaded rods 5 are all threadedly connected with threaded plates 13, and the outer surfaces of the threaded plates 13 The surface is fixedly connected with a fixing frame 14, and the outer surface of the fixing frame 14 is fixedly connected with a clamping plate 15. The four threaded rods 5 rotate at the same time. After the threaded rods 5 rotate, the threaded plate 13 is driven to move, and the threaded plate 13 drives the fixing frame 14, so that the clamping plate 15 moves toward the center until the metal material is clamped, thereby fixing metal materials of different sizes, and being able to fix circular metal materials well. During the experiment, in order to further prevent the metal material from detaching from the clamping plate 15, the first motor 16 can be turned on so that the first motor 16 is always working, so that each clamping plate 15 is always in a force state on the metal material.
[0025] The outer surfaces of the upper threaded rod 5 and the lower threaded rod 5 are fixedly sleeved with a driving bevel gear 17, the left and right outer surfaces of the upper support frame 3 are rotatably penetrated by the first rotating shaft 6, the outer surfaces of the two first rotating shafts 6 and the outer surfaces of the left and right threaded rods 5 are fixedly sleeved with a first transmission wheel 8, and a first belt 9 is sleeved between the two groups of two transmission wheels on the left and right, and the left outer surface of the lower support frame 3 is rotatably penetrated by the second rotating shaft 7, the outer surfaces of the left threaded rod 5 and the second rotating shaft 7 are fixedly sleeved with a second transmission wheel 10, and a second belt 11 is sleeved between the outer surfaces of the two second transmission wheels 10, and the outer surfaces of the second rotating shaft 7 and the outer surfaces of the two first rotating shafts 6 are fixedly sleeved with a driven bevel gear 18, the upper driving bevel gear 17 is movably meshed with the outer surfaces of the two upper driven bevel gears 18, and the outer surface of the lower driving bevel gear 17 is movably meshed with the outer surfaces of the lower driven bevel gear 18 Active engagement, in this embodiment, the first motor 16 drives the upper threaded rod 5 to rotate, and drives the upper active bevel gear 17 to rotate, and the upper active bevel gear 17 drives the upper two driven bevel gears 18 to rotate, so that the two first rotating shafts 6 rotate, so that the first transmission wheel 8 on the first rotating shaft 6 rotates, and under the action of the first belt 9, the first transmission wheel 8 on the two threaded rods 5 on the left and right sides is driven to rotate, and then the two threaded rods 5 on the left and right sides are rotated, and the second transmission wheel 10 is driven to rotate, and under the action of the second belt 11, the second transmission wheel 10 on the second rotating shaft 7 is driven to rotate, so that the second rotating shaft 7 rotates, and the rotation of the second rotating shaft 7 drives the lower driven bevel gear 18 to rotate, and then drives the lower driven bevel gear 18 to rotate, and finally drives the lower threaded rod 5 to rotate, so that the four threaded rods 5 rotate at the same time.
[0026] A protective box 19 is fixedly connected to the top outer surface of the test bench 1. A box door 20 is provided on the outer surface of the protective box 19. The protective box 19 is transparent. In this embodiment, the box door 20 is opened to fix the metal material. During the experiment, the box door 20 is closed. The protective box 19 blocks the splashing debris that may be generated during stretching, thereby ensuring the safety of the staff. The transparent protective box 19 also makes it easy to observe the experimental conditions inside the protective box 19.
[0027] Two vertical plates are fixedly connected to the top outer surface of the test bench 1, and the opposite outer surfaces of the two vertical plates are rotatably connected with forward and reverse screw rods 21. A second motor 22 is fixedly installed on the outer surface of the right vertical plate, and the output end of the second motor 22 is fixedly connected to the outer surface of the forward and reverse screw rods 21. Both stretching plates 2 are threadedly connected to the outer surfaces of the forward and reverse screw rods 21. In this embodiment, the second motor 22 drives the forward and reverse screw rods 21 to rotate, driving the two stretching plates 2 to move away from each other to perform a stretching test.
[0028] The clamping plate 15 is in the shape of a right-angled trapezoid, and a plurality of friction strips 12 are fixedly disposed on the outer surface of the clamping plate 15 .
[0029] Two limit rods are fixedly connected to the inner outer surface of the four sides of the square frame 4, and the threaded rod 5 is movably sleeved on the outer surfaces of the two limit rods. In this embodiment, when the threaded rod 5 rotates, it drives the threaded plate 13 to slide on the outer surface of the limit rod so that the threaded plate 13 moves stably, preventing the threaded plate 13 from rotating with the rotation of the threaded rod 5.
[0030] Two sliding rods are fixedly connected to the opposite outer surfaces of the two vertical plates, and the two stretching plates 2 are movably mounted on the outer surfaces of the two sliding rods. In this embodiment, when the forward and reverse screw rods 21 rotate to drive the stretching plate 2 to move, the stretching plate 2 slides on the outer surfaces of the sliding rods so that the stretching plate 2 moves stably, thereby preventing the stretching plate 2 from rotating with the rotation of the forward and reverse screw rods 21.
[0031] A marking rod is fixedly connected to the top outer surface of the test bench 1, and scale lines are provided on the outer surface of the marking rod. In this embodiment, the positions of the two stretching plates 2 before and after the experiment are observed through the scale lines on the marking rod, and the positions of the two stretching plates 2 are observed after the experiment to judge the stretching capacity of the metal material.
[0032] Working principle: When the utility model is in use, the metal material that needs to be subjected to a tensile test is fixed. When fixing, the two ends of the metal material are placed in appropriate positions, and the first motor 16 is turned on. The first motor 16 drives the upper threaded rod 5 to rotate, and drives the upper active bevel gear 17 to rotate. The upper active bevel gear 17 drives the upper two driven bevel gears 18 to rotate, so that the two first rotating shafts 6 rotate, and the first transmission wheel 8 on the first rotating shaft 6 rotates. Under the action of the first belt 9, the first transmission wheel 8 on the two threaded rods 5 on the left and right sides is driven to rotate, and then the two threaded rods 5 on the left and right sides are rotated, and the second transmission wheel 10 is driven to rotate. Under the action of the second belt 11, the second transmission wheel 10 on the second rotating shaft 7 is driven to rotate, so that the second rotating shaft 7 rotates, and the rotation of the second rotating shaft 7 drives the driven bevel gear 18 below to rotate, and then drives the driven bevel gear 18 below. The rotation eventually drives the threaded rod 5 below to rotate, thereby making the four threaded rods 5 rotate at the same time. After the threaded rod 5 rotates, it drives the threaded plate 13 to move, and the threaded plate 13 drives the fixing frame 14, so that the clamping plate 15 moves toward the center until the metal material is clamped, thereby fixing metal materials of different sizes, and being able to fix circular metal materials well. After fixing, turn on the second motor 22, and the second motor 22 drives the forward and reverse screw rods 21 to rotate, and the forward and reverse screw rods 21 drive the two stretching plates 2 to move away from each other, and perform a stretching test on the metal material. During the experiment, in order to further prevent the metal material from detaching from the clamping plate 15, the first motor 16 can be turned on, so that the first motor 16 is always working, so that each clamping plate 15 is always in a force-applying state to the metal material, and the splashing debris that may be generated during the stretching is blocked by the protective box 19, thereby ensuring the safety of the staff.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A material tensile test device, comprising a test bench (1), two tensile plates (2) and two square frames (4), Features: The upper and lower outer surfaces of the two square frames (4) are fixedly connected to support frames (3), the bottom outer surface of the lower support frame (3) is fixedly connected to the top outer surfaces of the two stretching plates (2), the outer surfaces of the four sides of the square frame (4) are all rotatably penetrated by threaded rods (5), the top outer surface of the upper support frame (3) is fixedly installed with a first motor (16), the output end of the first motor (16) is fixedly connected to the outer surface of the upper threaded rod (5), the outer surfaces of the four threaded rods (5) are all threadedly connected to threaded plates (13), the outer surface of the threaded plates (13) is fixedly connected to a fixing frame (14), and the outer surface of the fixing frame (14) is fixedly connected to a clamping plate (15).
2. A material tensile test device according to claim 1, Features: The outer surfaces of the upper threaded rod (5) and the lower threaded rod (5) are both fixedly sleeved with a driving bevel gear (17); the outer surfaces of the left and right sides of the upper support frame (3) are both rotatably penetrated by a first rotating shaft (6); the outer surfaces of the two first rotating shafts (6) and the outer surfaces of the left and right threaded rods (5) are both fixedly sleeved with a first transmission wheel (8); and a first belt (9) is sleeved between the two transmission wheels of the left and right groups; A second rotating shaft (7) is rotatably penetrated through the left outer surface of the support frame (3) at the bottom; a second transmission wheel (10) is fixedly sleeved on the outer surfaces of the left threaded rod (5) and the second rotating shaft (7); a second belt (11) is sleeved between the outer surfaces of the two second transmission wheels (10); a driven bevel gear (18) is fixedly sleeved on the outer surfaces of the second rotating shaft (7) and the outer surfaces of the two first rotating shafts (6); the upper driving bevel gear (17) is movably meshed with the outer surfaces of the two upper driven bevel gears (18); and the lower driving bevel gear (17) is movably meshed with the outer surfaces of the lower driven bevel gear (18).
3. A material tensile test device according to claim 1, Features: A protection box (19) is fixedly connected to the top outer surface of the test bench (1), a box door (20) is provided on the outer surface of the protection box (19), and the protection box (19) is transparent.
4. A material tensile test device according to claim 1, Features: The top outer surface of the test bench (1) is fixedly connected to two vertical plates, and the outer surfaces of the two vertical plates relative to each other are rotatably connected to forward and reverse screw rods (21). The outer surface of the right vertical plate is fixedly mounted with a second motor (22), and the output end of the second motor (22) is fixedly connected to the outer surface of the forward and reverse screw rods (21). Both of the two stretching plates (2) are threadedly connected to the outer surfaces of the forward and reverse screw rods (21).
5. A material tensile test device according to claim 1, Features: The clamping plate (15) is arranged in a right-angle trapezoidal shape, and a plurality of friction strips (12) are fixedly arranged on the outer surface of the clamping plate (15).
6. A material tensile test device according to claim 1, Features: Two limit rods are fixedly connected to the inner outer surfaces of the four sides of the square frame (4), and the threaded rod (5) is movably sleeved on the outer surfaces of the two limit rods.
7. A material tensile test device according to claim 4, Features: Two sliding rods are fixedly connected to the opposite outer surfaces of the two vertical plates, and the two stretching plates (2) are movably sleeved on the outer surfaces of the two sliding rods.
8. A material tensile test device according to claim 1, Features: A marking rod is fixedly connected to the top outer surface of the test bench (1), and scale lines are provided on the outer surface of the marking rod.