A device for testing mechanical properties of a drawbar

Abstract

The utility model relates to the technical field of mechanical property test, and disclose a kind of pull rod mechanical property testing device, test table, the clamping mechanism is fixed in the top side both ends of test table;The clamping mechanism includes the lower clamping plate of symmetry installation in the top side both ends of test table, the lower clamping plate top side one end is fixed with fixed plate symmetrically, the fixed plate top side is fixed with the limit rod, the limit rod is slidably installed with upper clamping plate, the lower clamping plate and upper clamping plate side are fixed with connecting seat, the connecting seat is respectively rotatably installed with connecting rod, the connecting rod one end rotatably installed with rotating seat, the rotating seat inboard rotatably inserts with screw rod, the screw rod both ends are fixed with disc, the disc top side edge position is fixed with handle.The utility model is through the structure of clamping mechanism, by screw rod cooperation drives both sides clamping plate to merge, to realize the function of clamping fixed material to be tested, this structure can be used for pull rod and other tubular materials, also can be used for other shape materials, more widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of mechanical performance testing technology, specifically a tension rod mechanical performance testing device. Background Technology

[0002] A pull rod is a rod-shaped structure used to pull objects or devices. It is widely used in various furniture, machinery and vehicles, and is a structure that is easy for people to hold. During the production and processing of pull rods, their mechanical properties are tested to ensure that they can be used normally in daily life.

[0003] A mechanical property testing device, with announcement number CN221199252U, consists of a housing as the main body. A lifting motor is fixed inside the housing, and a lifting threaded rod is fixed to the output end of the lifting motor. A lifting block is rotatably mounted on the lifting threaded rod. In use, the clamping motor drives the rubbing gear to rotate, thereby causing four sets of pressing frames to rotate simultaneously. Then, the lifting motor is started, which drives the lifting mechanism to rotate, causing the lifting toothed plate to drive the extension frame to descend. This causes the pressing frame to rotate to the top side of the material to be tested and press it down, thus fixing the material inside the pressing frame and the fitting frame, preventing vibration of the material during the test, and ensuring that the test data is not biased.

[0004] The mechanical performance testing device described above also has a problem: its fixing structure can only clamp parts of a fixed type or shape, and cannot fix tubular structures such as tie rods, which makes it impossible for the device to test their mechanical performance, resulting in a limited range of applicability. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem of being unable to fix tubular structures such as tie rods, making it impossible to test the mechanical properties of the device, resulting in a limited range of applications for the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tension rod mechanical performance testing device, comprising:

[0009] The test platform has clamping mechanisms fixed at both ends of its top side, a tensioning mechanism at one end of its bottom side, and a bending mechanism at the center of its bottom side.

[0010] The clamping mechanism includes lower clamping plates symmetrically installed at both ends of the top side of the test bench. A fixing plate is symmetrically fixed at one end of the top side of the lower clamping plate. A limit rod is fixed at the top side of the fixing plate. An upper clamping plate is slidably installed on the limit rod. A connecting seat is fixed to the side of the lower clamping plate and the upper clamping plate. A connecting rod is rotatably installed on the connecting seat. The center of the connecting rods on both sides is rotatably connected by a pin. A rotating seat is rotatably installed at one end of the connecting rod. A lead screw is rotatably inserted into the inner side of the rotating seat. The threads on both sides of the lead screw are in opposite directions. A disc is fixed at both ends of the lead screw. A handle is fixed at the top edge of the disc.

[0011] As a further embodiment of this utility model: support plates are symmetrically fixed at both ends of the top side of the test platform, and a sliding rod is fixed inside the support plate. One end of the lower clamping plate is fixedly connected to the test platform, and the other end of the lower clamping plate is slidably connected to the sliding rod through a sliding seat.

[0012] As a further embodiment of this utility model: the tensile mechanism includes a housing fixed to one end of the bottom side of the test platform, a threaded rod rotatably installed inside the housing, and a rectangular groove opened at one end of the top side of the test platform.

[0013] As a further improvement of this utility model: a movable seat is slidably installed inside the rectangular groove, the movable seat is fixedly connected to the lower clamping plate, and a servo motor is fixed to one end of the housing.

[0014] As a further embodiment of this utility model: the output end of the servo motor passes through the housing and is fixedly connected to the threaded rod, and the movable seat is rotatably connected to the threaded rod.

[0015] As a further embodiment of this utility model: the bending mechanism includes a lifting platform installed on the bottom side of the test bench, with hydraulic cylinders fixed at both ends of the lifting platform, and a hydraulic rod slidably installed inside the hydraulic cylinder, the top end of the hydraulic rod being fixedly connected to the bottom side of the test bench.

[0016] As a further embodiment of this utility model: vertical plates are symmetrically fixed on the top side of the lifting platform, a bracket is fastened to the top side of the vertical plate, and a fixing rod is inserted and installed between the bracket and the inner side of the vertical plate.

[0017] As a further improvement of this utility model: a pressing plate is fixed to the top of the card holder, and a limiting groove is opened at the center of the top side of the test platform, and the pressing plate is slidably installed inside the limiting groove.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention utilizes a clamping mechanism that uses a lead screw to drive the clamping plates on both sides to merge, thereby clamping and fixing the material to be tested. This structure can be used for tubular materials such as tie rods, as well as plate-shaped or other shaped materials, making it more widely applicable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a tension rod mechanical performance testing device.

[0021] Figure 2 This is a front sectional view of a clamping mechanism for a tension rod mechanical performance testing device;

[0022] Figure 3 This is a schematic front sectional view of a portion of the structure of a tension rod mechanical performance testing device;

[0023] Figure 4 This is a front sectional view of the tension mechanism of a tension rod mechanical performance testing device.

[0024] Figure 5 This is a side sectional view of the bending mechanism of a tension rod mechanical performance testing device.

[0025] In the diagram: 1. Test bench; 101. Clamping mechanism; 102. Tensioning mechanism; 103. Bending mechanism; 2. Lower clamping plate; 3. Fixing plate; 4. Limiting rod; 5. Upper clamping plate; 6. Connecting seat; 7. Connecting rod; 8. Rotating seat; 9. Lead screw; 10. Disc; 11. Handle; 12. Support plate; 13. Slide rod; 14. Sliding seat; 15. Rectangular groove; 16. Housing; 17. Moving seat; 18. Servo motor; 19. Threaded rod; 20. Lifting platform; 21. Vertical plate; 22. Card seat; 23. Extrusion plate; 24. Fixing rod; 25. Limiting groove; 26. Hydraulic cylinder; 27. Hydraulic rod. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1:

[0030] Please see Figures 1-3 This is the first embodiment of the present invention.

[0031] This embodiment provides a device for testing the mechanical properties of a tie rod, including:

[0032] Test bench 1, with clamping mechanisms 101 fixed at both ends of the top side of test bench 1, a tensioning mechanism 102 provided at one end of the bottom side of test bench 1, and a bending mechanism 103 provided at the center of the bottom side of test bench 1.

[0033] The clamping mechanism 101 includes lower clamping plates 2 symmetrically installed at both ends of the top side of the test bench 1. A fixing plate 3 is symmetrically fixed at one end of the top side of the lower clamping plate 2. A limit rod 4 is fixed at the top side of the fixing plate 3. An upper clamping plate 5 is slidably installed on the limit rod 4. A connecting seat 6 is fixed on the side of the lower clamping plate 2 and the upper clamping plate 5. A connecting rod 7 is rotatably installed on the connecting seat 6. The center of the two connecting rods 7 is rotatably connected by a pin. A rotating seat 8 is rotatably installed at one end of the connecting rod 7. A lead screw 9 is rotatably inserted into the inner side of the rotating seat 8. The threads on both sides of the lead screw 9 are in opposite directions. A disc 10 is fixed at both ends of the lead screw 9. A handle 11 is fixed at the top edge of the disc 10.

[0034] Specifically, support plates 12 are symmetrically fixed at both ends of the top side of the test bench 1, and slide rods 13 are fixed inside the support plates 12. One end of the lower clamping plate 2 is fixedly connected to the test bench 1, and the other end of the lower clamping plate 2 is slidably connected to the slide rod 13 through the sliding seat 14.

[0035] Furthermore, the lower clamping plate 2 structure, which is fixed and movable on both sides, can clamp and fix materials such as tie rods without affecting subsequent mechanical performance testing, making the device more flexible and convenient to use.

[0036] In use, place the pull rod or the material to be tested between the lower clamping plate 2 and the upper clamping plate 5. Rotate the disc 10 by using the handle 11 to make it drive the lead screw 9 to rotate. Since the threads at both ends are opposite, the lead screw 9 will drive the rotating seats 8 at both ends to move inward at the same time while rotating. Thus, with the cooperation of the connecting rod 7, the upper clamping plate 5 will move along the limiting rod 4 to the lower clamping plate 2, thereby clamping and fixing the pull rod or other materials for mechanical property testing.

[0037] In summary, the clamping mechanism 101, through the cooperation of the lead screw 9 to drive the two clamping plates to merge, achieves the function of clamping and fixing the material to be tested. This structure can be used for tubular materials such as tie rods, as well as plate-shaped or other shaped materials, and has a wider range of applications.

[0038] Example 2:

[0039] Please see Figures 4-5 This is the second embodiment of the present utility model.

[0040] Specifically, the tensile mechanism 102 includes a housing 16 fixed to one end of the bottom side of the test bench 1. A threaded rod 19 is rotatably installed inside the housing 16. A rectangular groove 15 is opened at one end of the top side of the test bench 1. A movable seat 17 is slidably installed inside the rectangular groove 15. The movable seat 17 is fixedly connected to the lower clamping plate 2. A servo motor 18 is fixed to one end of the housing 16. The output end of the servo motor 18 passes through the housing 16 and is fixedly connected to the threaded rod 19. The movable seat 17 is rotatably connected to the threaded rod 19.

[0041] Furthermore, through the structure of the rectangular groove 15 and the threaded rod 19, the lower clamping plate 2 on one side can be moved along the direction of the threaded rod 19, thereby stretching the pull rod. The operation is simple and convenient.

[0042] Specifically, the bending mechanism 103 includes a lifting platform 20 installed on the bottom side of the test bench 1. Hydraulic cylinders 26 are fixed at both ends of the lifting platform 20. Hydraulic rods 27 are slidably installed inside the hydraulic cylinders 26. The top of the hydraulic rods 27 is fixedly connected to the bottom side of the test bench 1. Vertical plates 21 are symmetrically fixed on the top side of the lifting platform 20. A card seat 22 is fastened to the top side of the vertical plate 21. A fixing rod 24 is inserted between the card seat 22 and the inner side of the vertical plate 21. A pressing plate 23 is fixed to the top of the card seat 22. A limiting groove 25 is opened at the center of the top side of the test bench 1. The pressing plate 23 is slidably installed inside the limiting groove 25.

[0043] Furthermore, the detachable extrusion plate 23 allows for disassembly and assembly as needed, enabling the pull rod to bend by pressing it from above or below, thus facilitating mechanical performance testing.

[0044] In use, after the pull rod is clamped and fixed, the servo motor 18 can be controlled to drive the output end threaded rod 19 to rotate, so that with the cooperation of the moving seat 17, it pulls the lower clamping plate 2 to move along the rectangular groove 15, thereby pulling one end of the pull rod to stretch it to test its mechanical properties. At the same time, the hydraulic cylinder 26 is controlled to extend and retract the inner hydraulic rod 27 to the required length. At this time, the vertical plate 21 is located on both sides of the pull rod. The card seat 22 can be fastened to the top side of the vertical plate 21, and the fixing rod 24 is inserted through the card seat 22 and the inner side of the vertical plate 21 to fix its position. At this time, the extrusion plate 23 can be installed on the top or bottom side of the pull rod as needed. The hydraulic cylinder 26 is controlled again to drive the lifting platform 20 to move up and down, thereby causing the extrusion plate 23 to extrude the pull rod to bend it, and its mechanical properties are tested.

[0045] In summary, the structure of the tensioning mechanism 102 and the bending mechanism 103 allows for separate tensioning and bending tests on the tie rod, or simultaneous tests, making the device more flexible and convenient to use.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for testing the mechanical properties of a tension rod, comprising: The test platform (1) is characterized in that: a clamping mechanism (101) is fixed at both ends of the top side of the test platform (1), a tensioning mechanism (102) is provided at one end of the bottom side of the test platform (1), and a bending mechanism (103) is provided at the center of the bottom side of the test platform (1). The clamping mechanism (101) includes lower clamping plates (2) symmetrically installed at both ends of the top side of the test bench (1). A fixing plate (3) is symmetrically fixed at one end of the top side of the lower clamping plate (2). A limit rod (4) is fixed at the top side of the fixing plate (3). An upper clamping plate (5) is slidably installed on the limit rod (4). A connecting seat (6) is fixed on the side of the lower clamping plate (2) and the upper clamping plate (5). A connecting rod (7) is rotatably installed on the connecting seat (6). The connecting rods (7) on both sides are rotatably connected by a pin at their center. A rotating seat (8) is rotatably installed at one end of the connecting rod (7). A lead screw (9) is rotatably inserted inside the rotating seat (8). The threads on both sides of the lead screw (9) are opposite in direction. A disc (10) is fixed at both ends of the lead screw (9). A handle (11) is fixed at the top edge of the disc (10).

2. The tension rod mechanical performance testing device according to claim 1, characterized in that: The test bench (1) has support plates (12) fixed symmetrically at both ends of its top side. The support plates (12) have slide rods (13) fixed inside. One end of the lower clamping plate (2) is fixedly connected to the test bench (1), and the other end of the lower clamping plate (2) is slidably connected to the slide rod (13) through a sliding seat (14).

3. The tension rod mechanical performance testing device according to claim 1, characterized in that: The tensile mechanism (102) includes a housing (16) fixed to one end of the bottom side of the test bench (1), a threaded rod (19) is rotatably installed inside the housing (16), and a rectangular groove (15) is provided at one end of the top side of the test bench (1).

4. The tension rod mechanical performance testing device according to claim 3, characterized in that: A movable seat (17) is slidably installed inside the rectangular groove (15). The movable seat (17) is fixedly connected to the lower clamping plate (2). A servo motor (18) is fixed at one end of the housing (16).

5. The tension rod mechanical performance testing device according to claim 4, characterized in that: The output end of the servo motor (18) passes through the housing (16) and is fixedly connected to the threaded rod (19), and the movable seat (17) is rotatably connected to the threaded rod (19).

6. The tension rod mechanical performance testing device according to claim 1, characterized in that: The bending mechanism (103) includes a lifting platform (20) installed on the bottom side of the test bench (1). Hydraulic cylinders (26) are fixed at both ends of the lifting platform (20). A hydraulic rod (27) is slidably installed on the inner side of the hydraulic cylinder (26). The top end of the hydraulic rod (27) is fixedly connected to the bottom side of the test bench (1).

7. The tension rod mechanical performance testing device according to claim 6, characterized in that: The lifting platform (20) has vertical plates (21) symmetrically fixed on its top side. The top side of the vertical plate (21) is fitted with a bracket (22). The bracket (22) and the inner side of the vertical plate (21) are fitted with a fixing rod (24).

8. The tension rod mechanical performance testing device according to claim 7, characterized in that: The top of the card holder (22) is fixed with an extrusion plate (23), and a limiting groove (25) is opened at the center of the top side of the test platform (1). The extrusion plate (23) is slidably installed inside the limiting groove (25).

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