Tension detection device

Abstract

The utility model discloses a tension detection device, which relates to the technical field of tension detection and comprises a vertical frame, a stud is rotatably connected to the center of the inner side of the vertical frame, a Y-shaped guide frame is in threaded connection to the outer side of the stud, and a clamping assembly is arranged at the upper end of the Y-shaped guide frame; the clamping assembly comprises a base, the base is fixed to the upper end of the Y-shaped guide frame, a storage base is arranged at the upper end of the base, four hollow screw cylinders are evenly and rotatably connected to the interior of the storage base, the inner side of each hollow screw cylinder is in threaded connection with a screw rod, one end of each screw rod is located on the inner side of the storage base and is fixedly provided with a clamping plate, and a guide rod is fixed to the upper end of each clamping plate. According to the pulling force detection device provided by the utility model, through the integral structure cooperation design, the distance between the four clamping plates can be conveniently adjusted so as to adapt to forgings with different thicknesses, and when the four clamping plates are close to each other at the same time, the forgings are extruded so as to realize clamping.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, and in particular to a tensile testing device. Background Technology

[0002] With the development of science and technology and the progress of the times, standardization has led to certain standards for the construction or production of anything. Whether a thing meets the standard requires testing by specialized equipment. Tensile testing devices can detect the maximum tensile force an object can withstand. After forgings are produced and processed, they need to undergo tensile quality inspection using tensile testing devices.

[0003] For example, Chinese utility model patent (CN219455720U) discloses a tensile testing device, which states: "It includes: a tensile testing machine body, the tensile testing machine body is provided with two arc-shaped clamping mechanisms inside, which greatly increase the contact area by clamping through arc-shaped clamping plates, and with the cooperation of the first anti-slip pad, the clamping tightness is improved."

[0004] However, the curvature of the arc-shaped clamping plate in the above-mentioned device is fixed, which means that it can only clamp forgings of the same thickness, resulting in poor applicability. Therefore, this application proposes a tensile testing device. Utility Model Content

[0005] Based on this, it is necessary to provide a tensile testing device to address the above-mentioned technical problems. Through the overall structural design, it is easy to control the synchronous movement of the four clamping plates inside the placement seat by the guide rod, thereby adjusting the distance between the four clamping plates to accommodate forgings of different thicknesses. When the four clamping plates approach each other at the same time, they compress the forging to achieve clamping. Furthermore, during the clamping process, the compression deformation of the anti-slip soft pad facilitates the provision of more contact area.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A tensile testing device for testing the tensile strength of forgings;

[0008] The device includes a support frame, with guide posts symmetrically fixed at one end of the inner side of the support frame, a stud rotatably connected at the center of the inner side of the support frame, a Y-shaped guide frame threadedly connected to the outer side of the stud, and the end of the Y-shaped guide frame away from the stud slidably connected to the two guide posts. A clamping assembly is provided at the upper end of the Y-shaped guide frame.

[0009] The clamping assembly includes a base, the upper end of the Y-shaped guide is fixed to the base, the upper end of the base is provided with a placement seat, four hollow screw cylinders are evenly rotatably connected inside the placement seat, each hollow screw cylinder is threaded with a screw rod on its inner side, one end of the screw rod is located inside the placement seat and is fixed with a clamping plate, the upper end of each clamping plate is fixed with a guide rod, the end of the guide rod away from the clamping plate passes through the placement seat and is slidably connected to the placement seat, and a driving assembly is provided between the upper end of the base and the four hollow screw cylinders.

[0010] In a preferred embodiment of the tensile testing device provided by this utility model, four columns are evenly fixed to the upper end of the base, and a mounting plate is fixed to the upper end of the four columns. The placement seat is located at the center of the upper end of the mounting plate and is fixed to the mounting plate. An anti-slip pad is fixed to the outer side of each clamp.

[0011] In a preferred embodiment of the tensile testing device provided by this utility model, the driving assembly includes a second motor. The second motor is fixed at the center of the upper end of the base. A second spur gear is fixed at the output end of the second motor. A first bevel gear is fixed on the outer side of each hollow screw and on the outer side of the placement seat. Four support shafts are uniformly rotatably connected inside the mounting plate and on the outer side of the placement seat. A second bevel gear is fixed at the upper end of each support shaft. The four second bevel gears are respectively meshed with the four first bevel gears. A first spur gear is fixed at the lower end of each support shaft. The four first spur gears are all meshed with the second spur gears.

[0012] In a preferred embodiment of the tensile testing device provided by this utility model, a travel gauge is symmetrically fixed to the other end of the inner side of the upright frame, a worm gear is fixed to the outer side of the lower end of the stud, a first motor is fixed to the lower end of the upright frame and located outside the worm gear, a rotating shaft is fixed to the output end of the first motor, a worm is fixed to the outer side of the rotating shaft, and the worm is meshed with the worm gear.

[0013] In a preferred embodiment of the tensile testing device provided by this utility model, pointers are fixed on both sides of the Y-shaped guide near the stud, and a limit ring is fixed on the outer side of the stud and at the upper end of the Y-shaped guide.

[0014] In a preferred embodiment of the tensile testing device provided by this utility model, a tensile gauge is fixedly provided at the top of the inner side of the frame, and a clamping component is also provided at the lower end of the tensile gauge, with the two clamping components arranged symmetrically between them.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The tensile testing device provided by this utility model, through its overall structural design, makes it easy to control the synchronous movement of four clamping plates inside the placement seat by the guide rod, thereby adjusting the distance between the four clamping plates to accommodate forgings of different thicknesses. When the four clamping plates approach each other at the same time, they compress the forging to achieve clamping. Furthermore, during the clamping process, the compression deformation of the anti-slip soft pad facilitates the provision of more contact area. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the tensile testing device provided by this utility model;

[0019] Figure 2 A schematic diagram of the inner side of the support frame of the tensile testing device provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure between the Y-shaped guide frame and the tension gauge of the tension testing device provided by this utility model;

[0021] Figure 4 A schematic diagram of the clamping assembly of the tensile testing device provided by this utility model.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Frame; 2. Guide column; 3. Travel gauge; 4. Stud; 5. Worm gear; 6. Limit ring; 7. First motor; 8. Shaft; 9. Worm; 10. Y-shaped guide frame; 11. Pointer; 12. Force gauge; 13. Base; 14. Column; 15. Mounting tray; 16. Storage seat; 17. Hollow screw barrel; 18. Screw; 19. Clamping plate; 20. Anti-slip pad; 21. Guide rod; 22. First bevel gear; 23. Support shaft; 24. Second bevel gear; 25. First spur gear; 26. Second motor; 27. Second spur gear. Detailed Implementation

[0024] As described in the background art, the curvature of the arc-shaped clamping plate in the above-mentioned device is fixed, which means that it can only clamp forgings of the same thickness, resulting in poor applicability.

[0025] To solve this technical problem, this utility model provides a tensile testing device, which is applied to the tensile testing of forgings;

[0026] The support frame 1 is included. One end of the inner side of the support frame 1 is symmetrically fixed with guide posts 2. A stud 4 is rotatably connected to the center of the inner side of the support frame 1. A Y-shaped guide frame 10 is threadedly connected to the outer side of the stud 4. The end of the Y-shaped guide frame 10 away from the stud 4 is slidably connected to the two guide posts 2. A clamping assembly is provided at the upper end of the Y-shaped guide frame 10.

[0027] The clamping assembly includes a base 13. The upper end of the Y-shaped guide frame 10 is fixed to the base 13. The upper end of the base 13 is provided with a storage seat 16. Four hollow screw cylinders 17 are evenly rotatably connected inside the storage seat 16. Each hollow screw cylinder 17 is threaded with a screw 18 on its inner side. One end of the screw 18 is located inside the storage seat 16 and is fixed with a clamping plate 19. Each clamping plate 19 is fixed with a guide rod 21 at its upper end. The end of the guide rod 21 away from the clamping plate 19 passes through the storage seat 16 and is slidably connected to the storage seat 16. A driving assembly is provided between the upper end of the base 13 and the four hollow screw cylinders 17.

[0028] The tensile testing device provided by this utility model, through the overall structural design, makes it easy to control the four clamping plates 19 to move synchronously inside the placement seat 16 under the guidance of the guide rod 21, thereby adjusting the distance between the four clamping plates 19 to accommodate forgings of different thicknesses. When the four clamping plates 19 approach each other at the same time, they squeeze the forging to achieve clamping.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Example 1:

[0032] Please refer to Figure 1-4 A tensile testing device includes a stand 1, with guide posts 2 symmetrically fixed at one end of the inner side of the stand 1, a stud 4 rotatably connected at the center of the inner side of the stand 1, a Y-shaped guide 10 threadedly connected to the outer side of the stud 4, and the end of the Y-shaped guide 10 away from the stud 4 slidably connected to the two guide posts 2, a tensile gauge 12 fixed at the top of the inner side of the stand 1, and a clamping assembly provided at the upper end of the Y-shaped guide 10.

[0033] Specifically, the clamping assembly includes a base 13, the upper end of the Y-shaped guide frame 10 is fixed to the base 13, the upper end of the base 13 is provided with a storage seat 16, four columns 14 are evenly fixed to the upper end of the base 13, the upper end of the four columns 14 is fixed with a mounting plate 15, the storage seat 16 is located at the center of the upper end of the mounting plate 15 and is fixed to the mounting plate 15, four hollow screw cylinders 17 are evenly rotatably connected inside the storage seat 16, each hollow screw cylinder 17 is threaded with a screw 18 on its inner side, one end of the screw 18 is located inside the storage seat 16 and is fixed with a clamping plate 19, each clamping plate 19 is fixed with a guide rod 21 at its upper end, the end of the guide rod 21 away from the clamping plate 19 passes through the storage seat 16 and is slidably connected to the storage seat 16;

[0034] This allows the clamping plate 19 to move under the guidance of the guide rod 21 when the hollow screw cylinder 17 rotates. In order to drive the four hollow screw cylinders 17 to rotate at the same time, a drive assembly is provided between the upper end of the base 13 and the four hollow screw cylinders 17.

[0035] Specifically, the drive assembly includes a second motor 26, a second motor 26 fixed at the center of the upper end of the base 13, a second spur gear 27 fixed at the output end of the second motor 26, a first bevel gear 22 fixed on the outer side of each hollow screw cylinder 17 and on the outer side of the storage seat 16, and four support shafts 23 uniformly rotatably connected inside the mounting plate 15 and on the outer side of the storage seat 16, a second bevel gear 24 fixed at the upper end of each support shaft 23, the four second bevel gears 24 meshing with the four first bevel gears 22 respectively, and a first spur gear 25 fixed at the lower end of each support shaft 23, the four first spur gears 25 meshing with the second spur gear 27.

[0036] After the bottom of the forging is connected to the clamping assembly at the upper end of the Y-shaped guide frame 10, in order to connect the top of the forging to the tension gauge 12, a clamping assembly is also provided at the lower end of the tension gauge 12. The two clamping assemblies are symmetrically arranged, so that the top of the forging can be easily connected to the tension gauge 12 through the inverted clamping assembly.

[0037] Example 2:

[0038] The tensile testing device provided in Example 1 has been further optimized, specifically, as follows: Figure 1-4 As shown, when the four clamping plates 19 approach each other to clamp the forging, in order to provide more contact area and thus improve the clamping strength, an anti-slip pad 20 is fixed on the outer side of each clamping plate 19.

[0039] In order to facilitate the downward movement of the Y-shaped guide frame 10 for tensile testing of the forging, a worm gear 5 is fixed to the outer side of the lower end of the stud 4, and a first motor 7 is fixed to the lower end of the stand 1 and outside the worm gear 5. A rotating shaft 8 is fixed to the output end of the first motor 7, and a worm 9 is fixed to the outer side of the rotating shaft 8. The worm 9 is meshed with the worm gear 5.

[0040] When the tension test ends after the Y-shaped guide 10 moves down, in order to limit the initial position of the Y-shaped guide 10 and thus realize the rapid reset of the Y-shaped guide 10, a limit ring 6 is also fixed on the outside of the stud 4 and at the upper end of the Y-shaped guide 10.

[0041] In order to obtain accurate tensile test results with the force gauge 12, a travel ruler 3 is symmetrically fixed on the other end of the inner side of the upright frame 1, and pointers 11 are fixed on both sides of the Y-shaped guide frame 10 near the stud 4. This allows the downward travel of the Y-shaped guide frame 10 to be visually displayed through the travel ruler 3 and pointers 11. Combined with this travel distance, the force gauge 12 can be used to easily obtain accurate tensile test results.

[0042] All of the above electrical components are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing publicly available power connection technology will not be described in detail here.

[0043] The tensile testing device provided by this utility model is used as follows: Before the test begins, the forging is placed between the tensile gauge 12 and the Y-shaped guide frame 10, and its top and bottom ends are respectively connected to two clamping components. Specifically, when the forging is located inside the placement seat 16, the second motor 26 is started to drive the second flat gear 27 to rotate. Through the meshing of the second flat gear 27 with the four first flat gears 25, the four support shafts 23 and the second bevel gear 24 are driven to rotate. In conjunction with the meshing of the second bevel gear 24 with the first bevel gear 22, the four hollow screw cylinders 17 are driven to rotate synchronously. Thus, the four clamping plates 19 are guided by the guide rod 21 to move closer to each other synchronously to clamp the forging. The compression deformation of the anti-slip soft pad 20 is used to further increase the contact area and improve the clamping strength.

[0044] After clamping, the first motor 7 is started to drive the rotating shaft 8 and worm 9 to rotate. The worm 9 meshes with the worm wheel 5 to drive the stud 4 to rotate, which in turn drives the Y-shaped guide 10 to move down under the guidance of the guide post 2, and begins to test the tensile strength of the forging. During the downward movement of the Y-shaped guide 10, the pointer 11 and the travel ruler 3 are used to visually display the downward travel distance of the Y-shaped guide 10. The test results are obtained by combining the downward travel distance of the Y-shaped guide 10 with the tensile tester 12. When the Y-shaped guide 10 is reset, the limiting ring 6 makes it easy for the Y-shaped guide 10 to quickly return to the initial position.

Claims

1. A tension detecting device characterized by comprising: The utility model provides stand (1), one end of inside of stand (1) is fixed with guide column (2) symmetry, the centre of inside of stand (1) is rotatably connected with stud (4), the outside screw thread connection of stud (4) has Y-shaped guide frame (10), the end away from stud (4) of Y-shaped guide frame (10) is slidably connected with two guide columns (2), Y-shaped guide frame (10) upper end is provided with clamping assembly; The clamping assembly includes a base (13), the upper end of the Y-shaped guide frame (10) is fixed with the base (13), the upper end of the base (13) is provided with a storage seat (16), four hollow screw cylinders (17) are rotatably connected inside the storage seat (16), the inner side of each hollow screw cylinder (17) is screw connected with a screw rod (18), one end of the screw rod (18) is located inside the storage seat (16) and is fixed with a clamping plate (19), the upper end of each clamping plate (19) is fixed with a guide rod (21), the guide rod (21) is slidably connected with the storage seat (16) and penetrates the storage seat (16) away from the clamping plate (19), a driving assembly is arranged between the upper end of the base (13) and the four hollow screw cylinders (17).

2. The tension detecting device according to claim 1, wherein The upper end of the base (13) is uniformly fixed with four stand columns (14), the upper end of the four stand columns (14) is fixed with a mounting disc (15), the storage seat (16) is located at the center of the upper end of the mounting disc (15) and is fixed with the mounting disc (15), the outer side of each clamping plate (19) is fixed with an anti-skid cushion (20).

3. The tension detecting device according to claim 2, wherein The driving assembly includes a second motor (26), the center of the upper end of the base (13) is fixed with the second motor (26), the output end of the second motor (26) is fixed with a second spur gear (27), the outer side of each hollow screw cylinder (17) and located outside the storage seat (16) is fixed with a first bevel gear (22), the inside of the mounting disc (15) and located outside the storage seat (16) is rotatably connected with four support shafts (23), the upper end of each support shaft (23) is fixed with a second bevel gear (24), four second bevel gears (24) are respectively meshed with four first bevel gears (22), the lower end of each support shaft (23) is fixed with a first spur gear (25), and four first spur gears (25) are meshed with the second spur gear (27).

4. The tension detecting device according to claim 1, wherein The other end of the inside of the stand (1) is symmetrically fixed with a travel ruler (3), the outer side of the lower end of the stud (4) is fixed with a worm gear (5), the lower end of the stand (1) and located outside the worm gear (5) is fixed with a first motor (7), the output end of the first motor (7) is fixed with a rotating shaft (8), the outer side of the rotating shaft (8) is fixed with a worm (9), and the worm (9) is meshed with the worm gear (5).

5. The tension detecting device according to claim 4, wherein The two sides of the Y-shaped guide frame (10) close to one end of the stud (4) are fixed with a pointer (11), and the outer side of the stud (4) and located at the upper end of the Y-shaped guide frame (10) is also fixed with a limiting ring (6).

6. The tension detecting device according to claim 1, wherein The top end of the inside of the stand (1) is fixed with a tension meter (12), the lower end of the tension meter (12) is also provided with a clamping assembly, and the two clamping assemblies are symmetrically arranged.

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