Hoop hanging plate tension performance inspection tool
By designing a fixture for testing the tensile performance of clamping plates, and using a sliding connection between the clamping assembly and the fixed slide groove, as well as a power component drive, the problems of difficult clamping plate fixing and poor size adaptability were solved, thus achieving efficient and accurate mechanical performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing tensile testing methods for clamping plates suffer from difficulties in fixing, instability, and poor dimensional adaptability, leading to large deviations in test results and affecting data accuracy and efficiency.
A fixture for testing the tensile performance of clamp hanging plates was designed. It consists of a placement frame, a fixing plate, a clamping assembly, and a power assembly. The clamping assembly is slidably connected to the fixing groove to achieve flexible positioning and clamping of clamp hanging plates of different sizes. The power assembly drives the clamping assembly to move synchronously, simplifying the operation steps and ensuring the stability of the test.
This technology enables efficient and accurate mechanical performance testing of clamping panels of different sizes, improving the accuracy and efficiency of testing and ensuring the reliability and safety of test results.
Smart Images
Figure CN224095524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamp hanging plate inspection, and in particular to a tooling for testing the tensile performance of clamp hanging plates. Background Technology
[0002] With the development of power systems, the requirements for clamp mounting plates are constantly increasing. Their performance, quality, and safety are directly related to the stable operation and safety of the entire power system. If the mechanical properties of the clamp mounting plates fail to meet the standards during the installation or operation of transmission and transformation lines, and they break, causing deformation and damage to transmission and transformation equipment or even line faults, it will directly affect the safe and stable operation of the transmission lines.
[0003] Currently, tensile testing of clamp plates typically involves fixing the clamp plate to a workbench with bolts, followed by measuring the tensile strength using a tensile testing machine. However, this process presents several challenges. The clamp plate is prone to movement, making it difficult for a single person to operate, significantly impacting testing efficiency. Furthermore, instability during fixing or variations in the fixing method can lead to deviations in test results, affecting data accuracy. Additionally, the availability of various clamp plate sizes further complicates fixing and testing, as different sizes can produce different results during testing.
[0004] Therefore, there is an urgent need to develop a tensile performance testing fixture suitable for clamping panels of different sizes, to overcome the above-mentioned technical problems, and to effectively test the mechanical properties of clamping panels of different sizes. The fixture should be simple in structure, easy to operate, and ensure the accuracy of the mechanical performance test data of the clamping panels. Summary of the Invention
[0005] The purpose of this invention is to provide a tooling for testing the tensile performance of clamp hanging plates, which can accurately and quickly test the mechanical properties of clamp hanging plates of different sizes, and has the advantages of simple structure and convenient operation.
[0006] The present invention adopts the following technical solution:
[0007] A fixture for testing the tensile strength of clamping plates includes a placement frame and a power assembly. A fixed plate is provided at the upper end of the placement frame, and a clamping assembly for fixing a supporting steel pipe is provided on the fixed plate. The supporting steel pipe is positioned on the upper surface of the fixed plate. Two clamping plates to be tested are fixed on the outer surface of the supporting steel pipe. The power assembly drives the clamping assembly to move synchronously, and the movable end of the power assembly is connected to the clamping assembly. A fixing groove is provided on the fixed plate, and the clamping assembly is slidably connected to the fixing groove. The number of clamping assemblies is the same as the number of fixing grooves.
[0008] Furthermore, the fixed slide grooves are all provided on the fixed plate along the circumference and face the center of the fixed plate, and the number of fixed slide grooves is at least 3.
[0009] Furthermore, the clamping assembly includes an outer clamping slider and an inner clamping slider. The outer clamping slider is slidably disposed inside the fixed groove. The inner clamping slider includes a fixed part and a movable part, which are connected by a spring. The fixed part has a groove for receiving the movable part. The movable part of the inner clamping slider is used to press against the inside of the supporting steel pipe from the outside. The fixed part is slidably disposed inside the fixed groove.
[0010] Furthermore, an outer clamping slide plate is fixedly connected to the lower end of the outer clamping slider, and an inner clamping slide plate is fixedly connected to the lower end of the fixing part of the inner clamping slider.
[0011] Furthermore, a circular hole is provided in the middle of the fixed plate, and a rotating shaft is fixedly installed in the circular hole. A rotating plate is fitted around the lower outer circumference of the rotating shaft, and the rotating plate is rotatably connected to the rotating shaft.
[0012] Furthermore, an L-shaped outer connecting rod is hinged between the outer clamping slide and the rotating plate; an L-shaped inner connecting rod is hinged between the inner clamping slide and the rotating plate; the L-shaped outer connecting rod and the L-shaped inner connecting rod are staggered and hinged to the rotating plate.
[0013] Furthermore, the thickness of the rotating plate is the same as the thickness of the inner clamping slide, and the thickness of the outer clamping slide is greater than the sum of the thicknesses of the inner clamping slide and the L-shaped inner connecting rod.
[0014] Furthermore, the power assembly includes a drive cylinder and a connecting frame disposed at the outer end of the outer clamping slide. The drive cylinder is fixed to the placement frame, and the movable end of the drive cylinder is fixedly connected to the connecting frame.
[0015] Furthermore, one end of each of the two clamping plates to be tested is fitted with an upper pull rod, and the other end is fitted with a lower pull plate.
[0016] Furthermore, the ends of the two clamp plates to be tested are fixedly connected using bolts.
[0017] This utility model has the following beneficial effects:
[0018] 1) By setting a clamping assembly on the fixed plate, the clamping assembly is slidably connected to the fixed groove opened on the fixed plate, so that the clamping position can be flexibly adjusted according to actual needs. It can effectively clamp and position support steel pipes of different sizes and two clamping plates, which not only ensures the stability of the clamping plate connection during the inspection process, but also greatly improves the accuracy and efficiency of the inspection.
[0019] 2) One of the clamping slides is driven to move by the power component, which in turn drives the rotating plate to rotate through the L-shaped connecting rod. The rotating plate drives the other clamping slides to move synchronously, thereby realizing the rapid clamping and release of the supporting steel pipe, and thus the rapid clamping and release of the clamping plate, simplifying the operation steps and reducing the difficulty of operation.
[0020] 3) The supporting steel pipes and clamping components in the tooling can ensure that the clamping plate maintains the correct position and posture during the test, thereby ensuring the accuracy of the tensile performance test; at the same time, the design of the upper pull rod and lower pull plate also helps to better simulate the stress conditions in actual use.
[0021] In summary, this clamping plate tensile performance testing fixture has the advantages of high efficiency, flexibility, compactness, simplicity, accuracy, and safety and reliability. It can significantly improve the efficiency and accuracy of clamping plate tensile performance testing, and provide strong support for product quality control and safe use. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the bottom structure of the clamping assembly of this utility model;
[0024] Figure 3 This is a schematic diagram of the top structure of the clamping assembly of this utility model;
[0025] Figure 4 This is a schematic diagram of the clamping structure of the clamping plate of this utility model;
[0026] Figure 5 This is a schematic diagram of the pull-down plate structure of this utility model;
[0027] Figure 6 This is a schematic diagram of the upper pull rod structure of this utility model.
[0028] In the diagram, 1. Frame; 2. Fixing plate; 3. Clamping assembly; 4. Supporting steel pipe; 5. Hoop hanging plate; 6. Fixing slide; 7. External clamping slider; 8. External clamping slide plate; 9. Rotating shaft; 10. Rotating plate; 11. L-shaped external connecting rod; 12. Connecting frame; 13. Drive cylinder; 14. Upper pull rod; 15. Lower pull plate; 16. Bolt; 17. Internal clamping slider; 18. Internal clamping slide plate; 19. L-shaped internal connecting rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only a part of the embodiments disclosed in this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] Various non-limiting embodiments of this utility model are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.
[0031] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0032] Please see Figure 1-6 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:
[0033] The fixture for testing the tensile strength of clamping plates according to this utility model includes a placement frame 1, a fixing plate 2 at the upper end of the placement frame 1, and a clamping assembly 3 on the fixing plate 2. The clamping assembly 3 is used to fix a supporting steel pipe 4, which is located on the upper surface of the fixing plate 2. The two clamping plates 5 to be tested are placed on the outer surface of the supporting steel pipe 4 and fixed by bolts. It also includes a power assembly for driving the clamping assembly 3 to move synchronously. The fixing plate 2 has fixing grooves 6, which are evenly distributed along the circumference of the fixing plate 2 and face the center of the fixing plate 2. There are at least 3 fixing grooves 6, which can provide guidance for the movement of the clamping assembly 3, so that the clamping assembly 3 can generate a uniform clamping force, prevent the supporting steel pipe 4 from deflecting during assembly, and ensure the accuracy of the test results. The clamping assembly 3 is slidably connected to the fixing grooves 6. The number of clamping assemblies 3 is the same as the number of fixing grooves 6, so as to achieve effective clamping and positioning of supporting steel pipes 4 of different sizes, and then achieve effective clamping and positioning of the two clamping plates 5.
[0034] In this utility model, reference is made to Figure 2-3The clamping assembly 3 includes an outer clamping slider 7 and an inner clamping slider 17. The outer clamping slider 7 is placed inside the fixed slide groove 6 and slides in cooperation with the fixed slide groove 6. The inner clamping slider 17 includes a fixed part and a movable part, which are connected by a spring. The fixed part has a movable part receiving groove to ensure that the movable part always moves along the direction of the fixed slide groove 6 during the movement of the inner clamping slider 17. The movable part of the inner clamping slider 17 is used to press from the inside of the supporting steel pipe 4 outward. The fixed part is placed inside the fixed slide groove 6 and slides in cooperation with the fixed slide groove 6. The lower end of the outer clamping slider 7 is fixedly connected to an outer clamping slide plate 8, and the lower end of the fixed part of the inner clamping slider 17 is fixedly connected to an inner clamping slide plate 18. The clamping assembly 3 enables the supporting steel pipe 4 to be quickly and easily fixed on the fixed plate 2.
[0035] During use, the supporting steel pipe 4 is placed in the middle of the clamping assembly 3. The outer clamping slider 7 slides into the fixed plate 2 under the guidance of the fixed groove 6 until it abuts against the outer wall of the supporting steel pipe 4. The inner clamping slider 17 slides outward from the fixed plate 2 under the guidance of the fixed groove 6 until the movable part of the inner clamping slider 17 abuts against the inner wall of the supporting steel pipe 4. Then, the two clamping plates 5 to be tested are tightly attached to the outer periphery of the supporting steel pipe 4 and fixedly connected. Since the outer clamping slider 7 is placed on the outer periphery of the supporting steel pipe 4 and has a certain height, the clamping plates 5 to be tested are at the same height on the outer periphery of the supporting steel pipe 4, ensuring the reliability of the test results. At the same time, the outer clamping slider 7 clamps inward from the outer periphery of the supporting steel pipe 4, and the movable part of the inner clamping slider 17 clamps outward from the inner periphery of the supporting steel pipe 4, effectively preventing the supporting steel pipe 4 from rotating when the clamping plates 5 to be tested are attached to the outer periphery of the supporting steel pipe 4.
[0036] In this utility model, reference Figure 2-3 The fixed plate 2 has a round hole in the middle, and a rotating shaft 9 is fixedly installed in the round hole. A rotating plate 10 is sleeved on the lower outer circumference of the rotating shaft 9, and the rotating plate 10 is rotatably connected to the rotating shaft 9.
[0037] In this embodiment, an L-shaped outer connecting rod 11 is hinged between the outer clamping slide plate 8 and the rotating plate 10; an L-shaped inner connecting rod 19 is hinged between the inner clamping slide plate 18 and the rotating plate 10; the thickness of the rotating plate 10 is the same as the thickness of the inner clamping slide plate 18, and the thickness of the outer clamping slide plate 8 is greater than the sum of the thicknesses of the inner clamping slide plate 18 and the L-shaped inner connecting rod 19; the L-shaped outer connecting rod 11 and the L-shaped inner connecting rod 19 are hinged to the rotating plate 10 with a vertical offset to avoid interference during movement.
[0038] During use, the rotation of the rotating plate 10 is achieved through the corresponding L-shaped outer connecting rod 11 and L-shaped inner connecting rod 19. This allows the outer clamping slide plate 8 to simultaneously move all the outer clamping sliders 7 into the fixed plate 2, and the inner clamping slide plate 18 to simultaneously move the inner clamping sliders 17 outwards from the fixed plate 2. This effectively provides a uniform clamping force, clamping the supporting steel pipe 4 both internally and externally. The L-shaped outer connecting rod 11 and L-shaped inner connecting rod 19 enhance the connection strength between the outer clamping slide plate 8, the inner clamping slide plate 18, and the rotating plate 10, and also allow the outer clamping slide plate 8 and the inner clamping slide plate 18 to slide more easily along the rotating plate 10, thus achieving uniform clamping of the supporting steel pipe 4. After the outer clamping sliders 7 and the inner clamping sliders 17 clamp the supporting steel pipe 4, the position of the rotating plate 10 after rotation can be locked using an existing position locking structure, thus achieving continuous clamping of the supporting steel pipe 4. The position locking structure can use existing mechanisms such as positioning pins, which will not be described in detail here.
[0039] In this invention, the supporting steel pipe 4 can be uniformly clamped by driving the rotating plate 10 and utilizing the synchronous movement of the L-shaped outer connecting rod 11, the outer clamping slide plate 8, the outer clamping slider 7, the L-shaped inner connecting rod, the inner clamping slide plate 18, and the inner clamping slider 17. Alternatively, the rotating plate 10 can be rotated by driving any one of the outer clamping slide plates 8, and then the rotation of the rotating plate 10 can be used to drive the synchronous movement of the remaining L-shaped outer connecting rod 11, the outer clamping slide plate 8, the outer clamping slider 7, the L-shaped inner connecting rod, the inner clamping slide plate 18, and the inner clamping slider 17, thereby achieving uniform clamping of the supporting steel pipe 4.
[0040] In this embodiment, at least one of the outer clamping slide plates 8 is provided with a power component at its outer end. The power component includes a connecting frame 12 and a drive cylinder 13 provided at the outer end of the outer clamping slide plate 8. The drive cylinder 13 is fixed on the placement frame 1, and the movable end of the drive cylinder 13 is fixedly connected to the connecting frame 12, and then connected to the outer clamping slide plate 8.
[0041] During use, when clamping the supporting steel pipe 4, the drive cylinder 13 is activated, causing the movable end of the drive cylinder 13 to move inward toward the fixed plate 2, which in turn drives the outer clamping slide plate 8, which is fixedly connected to the drive cylinder 13, to move inward toward the fixed plate 2. The outer clamping slide plate 8 then pushes the rotating plate 10 to rotate through the L-shaped outer connecting rod 11. The rotation of the rotating plate 10 will pull the remaining L-shaped outer connecting rods 11 inward, thereby driving the remaining outer clamping slide plate 8 to move inward toward the fixed plate 2 along the fixed slide groove 6. At the same time as the rotating plate 10 rotates, the L-shaped inner connecting rod 19 will drive the inner clamping slide plate 18 to move outward toward the fixed plate 2 along the fixed slide groove 6, thereby achieving the inner and outer clamping and positioning of the supporting steel pipe 4.
[0042] The fixed and movable parts of the inner clamping slider 17 are connected by a spring, which effectively avoids the problem that the path length of the rotating plate 10 driving the inner clamping slide plate 18 to move outward along the fixed slide groove 6 is inconsistent with the path length of the L-shaped outer connecting rod 11 driving the outer clamping slide plate 8 to move inward along the fixed slide groove 6.
[0043] During use, when removing the support steel pipe 4 or the assembled support steel pipe 4 and clamp hanging plate 5 as a whole, the drive cylinder 13 is restarted, causing the movable end of the drive cylinder 13 to move outward of the fixed plate 2, driving the outer clamping slide plate 8, which is fixedly connected to the drive cylinder 13, to move outward of the fixed plate 2. This causes the rotating plate 10 to rotate under the pushing action of the outer clamping slide plate 8, and through the L-shaped outer connecting rod 11, the remaining outer clamping slide plate 8 moves along the fixed slide groove 6 outward of the fixed plate, causing the outer clamping slider 7 to move away from the support steel pipe 4. The rotation of the rotating plate 10 causes the L-shaped inner connecting rod 19 to drive the inner clamping slide plate 18 to move along the fixed slide groove 6 inward of the fixed plate 2, causing the inner clamping slider 17 to move away from the support steel pipe 4, thereby releasing the clamping state of the support steel pipe 4. Then, the support steel pipe 4 or the assembled support steel pipe 4 and clamp hanging plate 5 as a whole can be removed.
[0044] In this embodiment, reference Figure 4-6 Two clamping plates 5 to be tested are clamped at one end with an upper pull rod 14 and at the other end with a lower pull plate 15, which facilitates the connection of the clamping plates 5 to be tested with the tensile testing machine after clamping.
[0045] In this embodiment, reference Figure 4 The ends of the two clamp plates 5 to be tested are fixed with bolts 16. The ends of the bolts 16 are also equipped with locking pins to prevent the ends of the clamp plates 5 from deforming during the tensile test, which would cause the bolts 16 to rotate and make the connection between the two clamp plates 5 unstable.
[0046] During use, the supporting steel pipe 4 is first placed between the outer clamping slider 7 and the inner clamping slider 17. The movable end of the driving cylinder 13 moves inward, driving any one of the outer clamping slide plates 8 to rotate the rotating plate 10. Then, the rotation of the rotating plate 10 drives the remaining L-shaped outer connecting rod 11, the outer clamping slide plate 8, and the outer clamping slider 7, as well as the L-shaped inner connecting rod, the inner clamping slide plate 18, and the inner clamping slider 17 to move synchronously, clamping the supporting steel pipe 4. Next, the two clamping plates 5 to be tested are tightly attached to the outer periphery of the supporting steel pipe 4 and fixedly connected with bolts 16. One end of the two clamping plates 5 to be tested is clamped with an upper pull rod 14, and the other end is clamped with a lower pull plate 15. After fixing, the driving cylinder 13 is started again, and the movable end of the driving cylinder 13 moves outward to release the clamping state of the supporting steel pipe 4. The assembled supporting steel pipe 4 and clamping plates 5 are removed as a whole and connected to the tensile testing machine for tensile testing.
[0047] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as a limitation on the present invention.
[0048] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.
Claims
1. A fixture for testing the tensile strength of a clamping plate, characterized in that: It includes a placement frame and a power assembly; the upper end of the placement frame is equipped with a fixing plate, and the fixing plate is equipped with clamping components for fixing the supporting steel pipes, with the supporting steel pipes set on the upper surface of the fixing plate; the two clamping plates to be tested are set on the outer surface of the supporting steel pipes and fixed; the power assembly is used to drive the clamping components to move synchronously, and the movable end of the power assembly is connected to the clamping components; the fixing plate has a fixing groove, and the clamping components are slidably connected to the fixing groove, with the number of clamping components being the same as the number of fixing grooves.
2. The fixture for testing the tensile strength of a clamping plate according to claim 1, characterized in that: The fixed slide grooves are all arranged on the fixed plate along the circumference and face the center of the fixed plate, and the number of fixed slide grooves is at least 3.
3. The fixture for testing the tensile strength of a clamping plate according to claim 2, characterized in that: The clamping assembly includes an outer clamping slider and an inner clamping slider. The outer clamping slider is slidably disposed inside the fixed groove. The inner clamping slider includes a fixed part and a movable part, which are connected by a spring. The fixed part has a groove for receiving the movable part. The movable part of the inner clamping slider is used to press against the inside of the supporting steel pipe from the outside. The fixed part is slidably disposed inside the fixed groove.
4. The fixture for testing the tensile strength of a clamping plate according to claim 3, characterized in that: The lower end of the outer clamping slider is fixedly connected to an outer clamping slide plate, and the lower end of the fixing part of the inner clamping slider is fixedly connected to an inner clamping slide plate.
5. The fixture for testing the tensile strength of a clamping plate according to claim 4, characterized in that: The fixed plate has a circular hole in the middle, and a rotating shaft is fixedly installed in the circular hole. A rotating plate is sleeved on the lower outer periphery of the rotating shaft, and the rotating plate is rotatably connected to the rotating shaft.
6. The fixture for testing the tensile strength of a clamping plate according to claim 5, characterized in that: The outer clamping slide plate and the rotating plate are respectively hinged to each other by an L-shaped outer connecting rod; the inner clamping slide plate and the rotating plate are respectively hinged to each other by an L-shaped inner connecting rod; the L-shaped outer connecting rod and the L-shaped inner connecting rod are respectively hinged to the rotating plate with their upper and lower parts offset.
7. The fixture for testing the tensile strength of a clamping plate according to claim 6, characterized in that: The thickness of the rotating plate is the same as the thickness of the inner clamping slide, and the thickness of the outer clamping slide is greater than the sum of the thicknesses of the inner clamping slide and the L-shaped inner connecting rod.
8. The fixture for testing the tensile strength of a clamping plate according to claim 7, characterized in that: The power assembly includes a drive cylinder and a connecting frame disposed at the outer end of the outer clamping slide. The drive cylinder is fixed on the placement frame, and the movable end of the drive cylinder is fixedly connected to the connecting frame.
9. The fixture for testing the tensile strength of a clamping plate according to claim 1, characterized in that: The two clamping plates to be tested are clamped with an upper pull rod at one end and a lower pull plate at the other end.
10. A fixture for testing the tensile strength of a clamping plate according to any one of claims 1-9, characterized in that: The two clamp plates to be tested are fixedly connected at their ends with bolts.