A vibration device for concrete specimen casting

Abstract

The application relates to a concrete test piece mold pouring vibration device and belongs to the technical field of concrete vibration equipment. The device comprises a workbench and a vibration table. A mounting plate is arranged in the support frame of the vibration table. A driving assembly is arranged at the bottom of the mounting plate. The driving assembly symmetrically drives and connects clamping assemblies. The two clamping assemblies are symmetrically arranged on the two sides of the support frame and slide on a sliding plate. A scraping assembly is movably arranged on the workbench. The clamping assembly comprises an auxiliary frame. The driving assembly drives the auxiliary frame to slide on the sliding plate. Bottom plates are arranged at the two ends of the top of the support frame. A connecting rod unit is fixed at one end of the bottom plate and arranged at the other end of the clamping piece. The two ends of the auxiliary frame are rotationally connected with the two connecting rod units. A buffer assembly is arranged on the clamping piece. The application has the effects of realizing integrated clamping, vibration and scraping, shortening the preparation time of single batch test pieces, reducing the labor intensity of operators, and improving the overall production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of concrete vibration equipment, and in particular to a vibration device for pouring concrete specimens. Background Technology

[0002] In the field of building materials testing, the quality of concrete specimen preparation directly affects the test results of mechanical properties such as compressive strength and flexural strength. Compaction and surface leveling after casting are crucial steps in specimen preparation. Currently, traditional concrete specimen casting vibration devices rely heavily on manual hand-held mold fixing. During vibration, the mold is prone to displacement and tilting, leading to uneven internal density of the concrete, and even mold collapse and concrete leakage, affecting the specimen molding quality. After vibration, manual hand-held scraping is required for on-site leveling, which not only increases the labor intensity of operators but also easily leads to poor surface flatness due to differences in manual scraping force and angle, resulting in low efficiency. Furthermore, variations in manual operation can cause inconsistent quality among specimens, affecting the comparability of test results. Summary of the Invention

[0003] To address the issues that concrete specimen casting vibration devices often rely on manual hand-held mold fixing, leading to uneven internal density of the concrete, mold tipping, concrete leakage, and affecting specimen molding quality, as well as the need for manual hand-held scraper leveling on-site, which is inefficient and affects the comparability of test results, this application provides a vibration device for concrete specimen casting.

[0004] This application provides a vibration device for pouring concrete specimens, which adopts the following technical solution: A vibration device for pouring concrete specimens includes a workbench and a vibration table mounted on the workbench. A drive assembly, a mounting plate, and a sliding plate are disposed within a support frame of the vibration table. The drive assembly is disposed at the bottom of the mounting plate and is installed at the bottom of the support frame. The drive assembly is symmetrically driven and connected to clamping assemblies for holding the specimen. The two clamping assemblies are symmetrically mounted on both sides of the support frame and slide on the sliding plate. A leveling assembly for leveling the concrete inside the specimen is movably disposed on the workbench. The clamping assembly includes an auxiliary frame, a linkage unit, and a clamping member. The driving assembly drives the auxiliary frame to slide on the sliding plate. The auxiliary frame extends through and above the support frame. Both ends of the support frame are equipped with base plates. One end of the linkage unit is fixed on the base plate, and the other end is mounted on the clamping member. Both ends of the auxiliary frame are rotatably connected to the two linkage units respectively. A buffer assembly is installed on the side of the clamping member near the specimen.

[0005] By adopting the above technical solution, the workbench provides the load-bearing foundation for the entire device, the vibration table can compact the concrete inside the specimen, and the drive components within the support frame symmetrically drive the clamping components to ensure balanced force on the specimen and prevent displacement during vibration. The auxiliary frame and linkage unit of the clamping components cooperate to ensure that the clamping components accurately fit the specimen, and the buffer components reduce the damage to the specimen and mold caused by rigid compression. The movable leveling component replaces manual leveling, ensuring consistent surface flatness of the specimen. This integrated device significantly improves the efficiency and quality stability of specimen preparation compared to traditional manual step-by-step operations.

[0006] Optionally, the drive assembly includes a telescopic cylinder and a connecting plate. The telescopic cylinder is installed inside the support frame. The output end of the telescopic cylinder drives the connecting plate to move. A push-pull rod is symmetrically rotatably arranged on the connecting plate. The other end of the push-pull rod is rotatably connected to the auxiliary frame. The support frame has protrusion holes on both sides for the movement of the auxiliary frame.

[0007] By adopting the above technical solution, the telescopic cylinder provides power, which synchronously drives the auxiliary frames on both sides through the connecting plate and symmetrical push-pull rods, ensuring that the opening and closing actions of the clamping components are consistent and preventing the specimen from shifting under force. The protruding hole provides a movement channel for the auxiliary frames, restricting their direction of movement and preventing the auxiliary frames from shaking. The automated drive not only reduces the labor intensity of operators, but also precisely controls the clamping force, adapts to different specifications of specimen molds, and improves clamping stability and operating efficiency.

[0008] Optionally, the clamping member is U-shaped.

[0009] By adopting the above technical solution, the U-shaped structure can form a semi-enclosed clamping from both sides and bottom of the specimen mold, increasing the contact area with the mold, dispersing the clamping force, and avoiding excessive local pressure that could cause mold deformation; at the same time, the U-shaped opening facilitates the quick loading and unloading of the specimen mold without the need for complex alignment operations, simplifying the clamping process.

[0010] Optionally, the clamping member includes a base plate and an extension plate. The extension plate can be adjusted at both ends of the base plate. The base plate has a plurality of adjustment holes spaced apart along its length. Connectors are installed on the adjustment holes. Corresponding through holes are provided on the extension plate. The connector passes through one of the adjustment holes and the through hole to connect the base plate and the extension plate.

[0011] By adopting the above technical solution, the adjustable structure of the substrate and the extension plate can change the overall length of the clamping component by selecting different adjustment holes, adapting to specimen molds of different sizes and improving versatility; the connector ensures that the substrate and the extension plate are firmly connected, avoiding loosening after adjustment, eliminating the need to replace the entire clamping assembly, reducing equipment investment costs, and improving the adaptability of the device to the preparation of specimens of multiple specifications.

[0012] Optionally, the buffer assembly includes multiple springs and abutment plates, with one end of each spring connected to the base plate and the other end connected to the abutment plate.

[0013] By adopting the above technical solution, the spring provides elastic buffering during clamping, avoiding rigid compression of the mold by the clamping parts that could cause mold deformation or damage. At the same time, it absorbs the impact force between the mold and the clamping parts during vibration, reducing mold displacement. The abutment plate increases the contact area with the mold, so that the buffering force is evenly transmitted, avoiding excessive local spring stress and failure, effectively protecting the specimen mold, extending the service life of the mold, and ensuring the stability of the specimen position during vibration, thus improving the uniformity of concrete density.

[0014] Optionally, the linkage unit includes a first linkage, a second linkage, and a third linkage. One end of the first linkage is rotatably mounted on the base plate, and the other end is rotatably connected to the second linkage. The other end of the second linkage is rotatably connected to the third linkage. The other end of the third linkage is rotatably mounted on one side of the clamping member, and the end of the auxiliary frame is rotatably mounted on the second linkage.

[0015] By adopting the above technical solution, the multi-link structure can transform the linear sliding of the auxiliary frame into the smooth opening and closing of the clamping component, while adjusting the tilt angle of the clamping component to ensure that the clamping component always fits against the side of the mold, avoiding insecure clamping due to slight differences in mold size; the rotational connection between the auxiliary frame and the second link makes the power transmission smoother, reduces mechanical jamming, and enhances clamping stability.

[0016] Optionally, a first power source and a first lead screw are installed at one end of the worktable, and a first guide rod is installed at the other end. The output end of the first power source drives the first lead screw to rotate. A first nut seat is threadedly connected to the first lead screw. A first sliding sleeve is slidably sleeved on the first guide rod. A first telescopic rod is installed on the first nut seat. A second telescopic rod is installed on the first sliding sleeve. A second lead screw and a second guide post are installed between the first telescopic rod and the second telescopic rod. A second power source for driving the second lead screw to rotate is installed at one end of the second lead screw. A second nut seat is threadedly connected to the second lead screw. A second sliding sleeve is slidably sleeved on the second guide post. A movable seat is sleeved on the second nut seat and the second sliding sleeve. The leveling component is installed on the movable seat.

[0017] By adopting the above technical solution, the first power source drives the first lead screw to move the leveling component along the length of the worktable to adapt to the leveling requirements of specimens of different lengths; the first guide rod ensures smooth movement and avoids deviation; the first telescopic rod and the second telescopic rod can adjust the height of the leveling component to adapt to specimens of different heights; the second power source drives the second lead screw to move the leveling component along the width direction to achieve full leveling of the specimen surface. The multi-directional adjustment structure replaces manual adjustment of the leveling position, improves leveling efficiency and flatness accuracy, and ensures consistent surface quality of each specimen.

[0018] Optionally, the leveling assembly includes multiple columns, each column having a rotatable push cylinder. The telescopic end of the push cylinder is driven and connected to a first actuating rod, and the push cylinder and the first actuating rod are rotatably connected. A main support is mounted on one side of the movable seat, and a scraper plate is rotatably connected to the main support. A second actuating rod is rotatably connected to one end of the first actuating rod, and the second actuating rod is rotatably connected to the scraper plate. An auxiliary rod is rotatably connected to the other end of the first actuating rod, and the other end of the auxiliary rod is mounted on the main support.

[0019] By adopting the above technical solution, the cylinder provides the power to adjust the angle of the scraper plate. The first and second action rods work together to drive the scraper plate to rotate, adapting to scraping operations with different flatness requirements. The auxiliary rod limits the rotation range of the first action rod to prevent the scraper plate from tilting excessively, which could lead to incomplete scraping or damage to the mold. The main support provides stable support for the scraper plate, ensuring structural stability during the scraping process. Automated angle adjustment replaces manual adjustment of the scraper plate angle, improving the accuracy of the scraping action and reducing the deviation in the flatness of the specimen surface caused by differences in manual operation.

[0020] In summary, this application includes at least one of the following beneficial technical effects: The device features a symmetrically driven clamping assembly with a buffer structure to prevent specimen displacement or mold damage during vibration. The adjustable clamping assembly is suitable for specimens of various specifications, solving the problems of instability and poor versatility of traditional manual clamping. This ensures uniform concrete density and improves the accuracy of specimen mechanical property test data. By using a multi-directional adjustable leveling component in conjunction with an automated drive, the manual hand-held scraper can be replaced, which not only reduces the labor intensity of operators, but also precisely controls the leveling position and angle, ensuring that the surface flatness of the specimen meets the testing standards, reducing quality fluctuations caused by differences in manual operation, and improving the efficiency of batch preparation. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the support frame and clamping components in the embodiments of this application; Figure 3 yes Figure 2 Another structural diagram from a different angle; Figure 4 This is a schematic diagram of the structure of the leveling component in the embodiments of this application; Figure 5 This is a schematic diagram of the structure from another angle of an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures: 1. Worktable; 11. First power source; 12. First lead screw; 121. First nut seat; 13. First guide rod; 131. First sliding sleeve; 14. First telescopic rod; 15. Second telescopic rod; 16. Second lead screw; 17. Second guide column; 18. Second power source; 19. Moving seat; 2. Vibration table; 21. Support frame; 211. Base plate; 212. Mounting plate; 213. Sliding plate; 3. Drive assembly; 31. Telescopic cylinder; 32. Connecting plate; 33. 4. Push-pull rod; 4. Clamping assembly; 41. Auxiliary frame; 42. Link unit; 421. First link; 422. Second link; 423. Third link; 43. Clamping component; 431. Base plate; 432. Extension plate; 5. Scraping assembly; 51. Column; 52. Push cylinder; 53. First action rod; 54. Main support; 55. Scraping plate; 56. Second action rod; 57. Auxiliary rod; 6. Buffer assembly; 61. Spring; 62. Abutment plate; 7. Specimen. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a vibration device for pouring concrete specimens, referring to... Figures 1-3 The vibration device for pouring concrete specimens includes a workbench 1 and a vibration table 2 installed on the workbench 1. The support frame 21 of the vibration table 2 is provided with a drive assembly 3, a mounting plate 212 and a sliding plate 213. The drive assembly 3 is installed at the bottom of the mounting plate 212. The drive assembly 3 is installed at the bottom of the support frame 21. The drive assembly 3 is symmetrically driven to connect with clamping assemblies 4 for clamping specimens 7. The two clamping assemblies 4 are symmetrically installed on both sides of the support frame 21 and slide on the sliding plate 213. A leveling assembly 5 for leveling the concrete in the specimens 7 is movably provided on the workbench 1. The clamping assembly 4 includes an auxiliary frame 41, a connecting rod unit 42, and a clamping member 43. The driving assembly 3 drives the auxiliary frame 41 to slide on the sliding plate 213. The auxiliary frame 41 extends through and above the support frame 21. The support frame 21 has a base plate 211 installed at both ends of its top. One end of the connecting rod unit 42 is fixed on the base plate 211, and the other end is installed on the clamping member 43. The two ends of the auxiliary frame 41 are rotatably connected to the two connecting rod units 42 respectively. A buffer assembly 6 is installed on the side of the clamping member 43 near the specimen 7.

[0028] In this device, the workbench 1 provides a stable mounting platform for the vibration table 2 and the leveling component 5, distributing the overall weight of the device and ensuring that it will not tilt due to uneven local stress during placement. It also provides convenient operating space for operators, facilitating the handling of specimens 7 and the maintenance of the device. The vibration table 2, through a preset vibration frequency and amplitude, transfers vibration energy to the concrete within specimen 7, expelling air between concrete particles and achieving dense concrete formation. This ensures uniform and dense concrete within specimen 7, avoiding deviations in mechanical property test data due to differences in density.

[0029] The support frame 21 provides a fixed space for the drive assembly 3, mounting plate 212, and sliding plate 213, defining the relative positions of each component and ensuring precise transmission between the drive assembly 3 and the clamping assembly 4. It also enhances the overall structural strength of the vibration table 2 and reduces structural deformation during vibration. The mounting plate 212 provides a stable mounting reference for the drive assembly 3, ensuring that the drive assembly 3 does not wobble when outputting power. The sliding plate 213, located above the mounting plate 212, provides a sliding track for the clamping assembly 4, defining the direction of movement of the clamping assembly 4 and ensuring symmetrical opening and closing of the two clamping assemblies 4.

[0030] The drive component 3 is the power source for the clamping component 4. After receiving the preset control command, it outputs symmetrical power to drive the clamping components 4 on both sides to move synchronously along the sliding plate 213, thereby clamping and releasing the specimen 7. At the same time, by precisely controlling the power output, it adapts to the clamping requirements of molds of different specifications of specimen 7, avoiding excessive clamping force that could damage the mold or insufficient clamping force that could cause the specimen 7 to loosen.

[0031] In the clamping assembly 4, the auxiliary frame 41 transmits the power of the drive assembly 3 to the linkage unit 42, and moves along the extension hole of the support frame 21, driving the linkage unit 42 to move synchronously. This ensures that the clamping member 43 can open and close synchronously with the drive assembly 3, reducing clamping action jams caused by poor power transmission, improving the response speed of the clamping assembly 4, ensuring that the specimen 7 can be quickly clamped or released, and improving operating efficiency. The linkage unit 42 converts the linear movement of the auxiliary frame 41 into the smooth opening and closing of the clamping member 43, and adjusts the tilt angle of the clamping member 43 to ensure that the clamping member 43 can fit the side of the specimen 7 mold and adapt to the shape of molds of different sizes.

[0032] The clamping component 43 directly contacts the mold of the specimen 7 and clamps the mold under the drive of the connecting rod unit 42, limiting the position of the mold during vibration, preventing the mold from shifting laterally or longitudinally, ensuring that the mold remains intact during vibration, reducing mold wear costs, and setting a suitable clamping surface according to the mold shape to increase the contact area with the mold and disperse the clamping force.

[0033] The buffer component 6 absorbs the impact force between the mold and the clamping component 43 during vibration through its own elastic deformation, avoiding damage to the mold caused by rigid clamping. It also provides flexible cushioning during clamping, ensuring that the clamping force is evenly transmitted to the mold surface. Furthermore, the cushioning force further enhances the fit between the mold and the clamping component 43, preventing slight mold displacement during vibration and improving the compaction quality of the specimen 7. After concrete vibration, the leveling component 5 moves along the workbench 1 and fits against the surface of the specimen 7, scraping away excess concrete to keep the surface of the specimen 7 flat. This replaces the traditional manual hand-held scraping method. The leveling position and angle can be adjusted according to the size of the specimen 7 to ensure the leveling effect meets testing standards, improving leveling efficiency, reducing the labor intensity of manual leveling, and adapting to the unified leveling operation after batch preparation of specimens 7, thus improving overall production efficiency.

[0034] The base plate 211 provides a stable mounting reference for the linkage unit 42, defines the position of the rotation fulcrum of the linkage unit 42, ensures that the linkage unit 42 will not shift the fulcrum when it drives the clamping member 43 to move, and at the same time enhances the structural strength of the top of the support frame 21 and reduces structural swaying during vibration.

[0035] This concrete specimen casting vibration device uses a workbench 1 as a base. The vibration table 2 compacts the concrete specimen 7. A drive assembly 3 symmetrically drives a clamping assembly 4 to clamp the specimen 7 mold, preventing displacement during vibration. After vibration, a movable leveling assembly 5 smooths the concrete surface of the specimen 7, achieving integrated clamping, vibration, and leveling operations. This replaces traditional manual step-by-step operations, completing the standardized preparation of the concrete specimen 7. Through the collaborative work of automated components, the preparation time for a single batch of specimens 7 is significantly shortened, manual operations are reduced, the labor intensity of operators is lowered, and the batch specimen preparation needs of building materials testing laboratories are met, improving overall production efficiency.

[0036] The drive assembly 3 includes a telescopic cylinder 31 and a connecting plate 32. The telescopic cylinder 31 is installed inside the support frame 21. The output end of the telescopic cylinder 31 drives the connecting plate 32 to move. A push-pull rod 33 is symmetrically rotatably mounted on the connecting plate 32. The other end of the push-pull rod 33 is rotatably connected to the auxiliary frame 41. The support frame 21 has extension holes on both sides for the movement of the auxiliary frame 41. The telescopic cylinder 31 converts air pressure energy into linear mechanical energy and outputs a stable push or pull force according to a preset control command, driving the connecting plate 32 to move in a straight line, providing the initial power for the opening and closing of the clamping assembly 4. At the same time, the output force can be controlled by adjusting the air pressure to adapt to the clamping requirements of molds of different specifications of specimens 7. The connecting plate 32 evenly transmits the linear power of the telescopic cylinder 31 to the push-pull rods 33 on both sides, ensuring that the push-pull rods 33 move synchronously. At the same time, as an intermediate carrier for power transmission, it disperses the point of application of the output force of the telescopic cylinder 31, avoiding excessive local stress caused by the direct connection between the push-pull rods 33 and the cylinder, and protecting the connection structure between the cylinder and the push-pull rods 33.

[0037] The push-pull rod 33 converts the linear motion of the connecting plate 32 into the sliding motion of the auxiliary frame 41. At the same time, it adapts to the angle change between the connecting plate 32 and the auxiliary frame 41 by rotating the connection, ensuring that there is no jamming during the power transmission process. This provides smooth power for the auxiliary frame 41 to move along the sliding plate 213, thereby driving the clamping component 4 to complete the clamping and releasing of the specimen 7. This ensures the precise movement of the clamping component 4, improves the clamping accuracy, and reduces the insecure clamping of the mold caused by component offset.

[0038] The protruding hole provides a moving channel for the auxiliary frame 41, limiting the moving direction of the auxiliary frame 41 (along the length direction of the protruding hole), preventing the auxiliary frame 41 from shifting laterally during sliding. At the same time, there is a fitting gap between the inner wall of the protruding hole and the auxiliary frame 41, ensuring that the auxiliary frame 41 moves smoothly while also providing a certain guiding and limiting effect on the auxiliary frame 41, preventing the auxiliary frame 41 from shaking, improving the action accuracy and response speed of the clamping assembly 4, and ensuring that the specimen 7 is clamped quickly and stably.

[0039] The clamping member 43 is U-shaped, with symmetrically distributed arms on both sides, corresponding to the two opposite sides of the mold of specimen 7. During clamping, clamping force is applied simultaneously from both sides of the mold, ensuring balanced force distribution. The length of the arms can adapt to molds of different heights, covering most of the side area of ​​the mold and preventing force concentration caused by only contacting a localized area, thus protecting the mold and extending its service life. The bottom connecting section of the U-shaped clamping member 43 connects the two arms into a single unit, forming a stable frame structure, enhancing the structural strength of the clamping member 43 and preventing deformation of the arms under force during clamping. Simultaneously, the bottom connecting section can be precisely connected to the linkage unit 42, ensuring that the power transmitted by the linkage unit 42 is evenly distributed to both arms, driving them to open and close synchronously, preventing lag in the movement of one arm, and further improving the coordination and reliability of the clamping assembly 4. The opening of the U-shaped clamp 43 faces the placement direction of the specimen 7 mold, and the opening size is adapted to the width of common specimen 7 molds, which facilitates the quick insertion or removal of the mold without complicated alignment operations; at the same time, the opening edge is treated with a smooth transition to avoid the mold being scratched by sharp edges when it is inserted, thus protecting the mold surface.

[0040] The clamping member 43 includes a base plate 431 and an extension plate 432. The extension plate 432 can be adjusted at both ends of the base plate 431. The base plate 431 has multiple adjustment holes spaced apart along its length, and connectors are installed on the adjustment holes. Corresponding through holes are provided on the extension plate 432. The connectors pass through one of the adjustment holes and the through holes to connect the base plate 431 and the extension plate 432. The base plate 431 evenly distributes the clamping force transmitted by the linkage unit 42 to the extension plate 432 to ensure stable transmission of the clamping force. The extension plate 432 can be extended and retracted along the length of the base plate 431. By changing the overlap length with the base plate 431, the overall clamping length of the clamping member 43 is adjusted to adapt to molds of different widths of specimen 7. The end of the extension plate 432 away from the base plate 431 directly contacts the mold, increasing the contact area between the clamping member 43 and the mold to ensure stable clamping.

[0041] The adjustment holes provide multiple adjustment positions for the extension plate 432, allowing it to be fixed in the appropriate position according to the mold width, ensuring accurate clamping length after adjustment. The even distribution of the adjustment holes also ensures balanced clamping force transmission across different adjustment positions, preventing force deviations caused by uneven spacing between positions. The connector passes through the adjustment holes of the base plate 431 and the through holes of the extension plate 432, detachably securing both. This ensures a stable connection between the extension plate 432 and the base plate 431 after adjustment, preventing loosening due to vibration. The detachable nature of the connector allows operators to quickly change adjustment positions according to mold specifications, improving adjustment flexibility. The through holes provide a passage for the connector, ensuring precise connection between the base plate 431 and the extension plate 432. The position and size of the through holes are adapted to the adjustment holes and connectors, preventing loosening or installation failure due to hole diameter deviations. Furthermore, the through holes are positioned to avoid critical stress areas of the extension plate 432, ensuring its structural strength is not affected.

[0042] The buffer assembly 6 includes multiple springs 61 and an abutment plate 62. One end of each spring 61 is connected to the base plate 431, and the other end is connected to the abutment plate 62. The springs 61 absorb the impact force during clamping and the dynamic force during vibration through their own elastic deformation. The multiple springs 61 are evenly distributed to ensure that the buffering force is evenly transmitted to the abutment plate 62, avoiding uneven force distribution caused by insufficient local buffering force. During vibration compaction, the springs 61 absorb the vibration impact force between the mold and the clamping component 43, reducing the vibration displacement of the mold, preventing concrete leakage, improving the molding quality of the specimen 7, and extending the service life of the mold.

[0043] The abutment plate 62 integrates the dispersed buffering force of the spring 61 into a uniform clamping force, which is then transmitted to the mold. This avoids localized indentations caused by the spring 61 directly contacting the mold, protecting the mold surface and ensuring the dimensional accuracy of the specimen 7. Simultaneously, the planar structure of the abutment plate 62 increases the contact area with the mold, further dispersing the clamping force and ensuring balanced force distribution on the mold. During vibration, it enhances the fit between the mold and the clamping assembly 4, reduces relative slippage, improves clamping stability, and lowers the risk of concrete leakage.

[0044] The linkage unit 42 includes a first link 421, a second link 422, and a third link 423. One end of the first link 421 is rotatably mounted on the base plate 211, and the other end is rotatably connected to the second link 422. The other end of the second link 422 is rotatably connected to the third link 423. The other end of the third link 423 is rotatably mounted on one side of the clamping member 43. The end of the auxiliary frame 41 is rotatably mounted on the second link 422. The first link 421 provides a stable rotation fulcrum for the entire linkage unit 42, defining the action reference of the linkage unit 42; at the same time, it transmits the fixing support force of the base plate 211, ensuring that the linkage unit 42 does not shift as a whole when driving the clamping member 43, thus maintaining the stability of the transmission structure.

[0045] The second link 422 converts the linear power transmitted from the auxiliary frame 41 into its own rotational power and distributes it to the third link 423. By changing its own rotational angle, it adjusts the direction and amplitude of the movement of the third link 423, thereby controlling the opening and closing angle of the clamping member 43 to adapt to molds of different sizes. The third link 423 converts the rotational power of the second link 422 into the linear opening and closing power of the clamping member 43; at the same time, according to the angle change of the second link 422, it drives the clamping member 43 to adjust its tilt angle synchronously, ensuring that the clamping member 43 always fits against the side of the mold, avoiding clamping misalignment, adapting to molds of different thicknesses and shapes, and reducing the risk of mold clamping loosening.

[0046] A first power source 11 and a first lead screw 12 are installed at one end of the workbench 1, and a first guide rod 13 is installed at the other end. The output end of the first power source 11 drives the first lead screw 12 to rotate. A first nut seat 121 is threadedly connected to the first lead screw 12. A first sliding sleeve 131 is slidably sleeved on the first guide rod 13. A first telescopic rod 14 is installed on the first nut seat 121. A second telescopic rod 15 is installed on the first sliding sleeve 131. A second lead screw 16 and a second guide post 17 are installed between the first telescopic rod 14 and the second telescopic rod 15. A second power source 18 for driving the second lead screw 16 to rotate is installed at one end of the second lead screw 16. A second nut seat is threadedly connected to the second lead screw 16. A second sliding sleeve is slidably sleeved on the second guide post 17. A movable seat 19 is sleeved on the second nut seat and the second sliding sleeve. The scraping assembly 5 is installed on the movable seat 19.

[0047] The first power source 11, acting as the power element for the leveling assembly 5 to move along the length of the worktable 1, converts electrical energy into rotational mechanical energy, driving the coaxially connected first lead screw 12 to rotate. The first lead screw 12, through threaded transmission, converts its own rotational motion into the linear motion of the first nut seat 121, providing the leveling assembly 5 with the power to move along the length of the worktable 1. Simultaneously, by controlling the rotational speed and direction of the first power source 11, the moving speed and direction are precisely adjusted. The first guide rod 13 is arranged parallel to the first lead screw 12, providing a sliding track for the first sliding sleeve 131 and limiting the moving direction of the first sliding sleeve 131. The first sliding sleeve 131 and the first nut seat 121 are respectively connected to the two ends of the first telescopic rod 14, moving synchronously with the first nut seat 121. Through its cooperation with the first lead screw 12, it ensures that the first telescopic rod 14 always remains horizontal, preventing the leveling assembly 5 from tilting during movement.

[0048] The first telescopic rod 14 and the second telescopic rod 15 are respectively connected to the first nut seat 121, the first sliding sleeve 131, the second lead screw 16, and the second guide post 17 at both ends. They can be telescopically adjusted according to the height requirements of the leveling assembly 5, changing the vertical distance between the leveling assembly 5 and the surface of the worktable 1. At the same time, when the leveling assembly 5 moves along the length direction, it maintains a stable connection with the second lead screw 16 and the second guide post 17, ensuring that power can be smoothly transmitted to the leveling assembly 5, improving the adaptability of leveling, and reducing leveling quality problems caused by height deviation.

[0049] The second power source 18 provides power for the leveling component 5 to move along the width direction of the worktable 1, driving the second lead screw 16 to rotate. Both the first power source 11 and the second power source 18 can be motors. The second lead screw 16 converts the rotational motion into the linear motion of the second nut seat through threaded transmission, driving the moving seat 19 and the leveling component 5 to move along the width direction. At the same time, by controlling the rotational speed of the second power source 18, the leveling speed in the width direction is precisely adjusted to ensure coverage of all areas of the specimen 7 surface. This achieves automated movement of the leveling component 5 along the width direction, replacing manual adjustment of the leveling position and avoiding positional deviations during manual adjustment. Precise speed control and linear transmission ensure that the leveling component 5 can evenly cover every area of ​​the specimen 7 in the width direction, solving the problem of missed corners in traditional manual leveling, improving the integrity and consistency of the specimen 7 surface leveling, and reducing surface defects caused by uneven coverage.

[0050] The second guide post 17 is arranged parallel to the second lead screw 16, providing a sliding track for the second sliding sleeve and limiting the movement direction of the second sliding sleeve; the second sliding sleeve and the second nut seat are connected to the moving seat 19 together, and move synchronously with the second nut seat along the width direction. Through cooperation with the second lead screw 16, it is ensured that the moving seat 19 always remains horizontal, avoiding tilting or offset of the scraping component 5 when it moves in the width direction, ensuring that the scraping component 5 can accurately align with the edge of the specimen 7, and reducing the risk of scratching the mold.

[0051] The movable seat 19 integrates the power of the second nut seat and the second sliding sleeve, driving the scraper assembly 5 to move synchronously along the width direction; at the same time, it provides a stable installation platform for the scraper assembly 5, ensuring that the scraper assembly 5 will not shake or shift during the movement, and maintaining the matching angle between the scraper plate 55 and the surface of the specimen 7.

[0052] The leveling assembly 5 includes multiple columns 51. A push cylinder 52 is rotatably mounted on each column 51. The extension end of the push cylinder 52 is driven and connected to a first action rod 53. The push cylinder 52 and the first action rod 53 are rotatably connected. A main support 54 is mounted on one side of the movable seat 19. A scraper plate 55 is rotatably connected to the main support 54. A second action rod 56 is rotatably connected to one end of the first action rod 53. The second action rod 56 is rotatably connected to the scraper plate 55. An auxiliary rod 57 is rotatably connected to the other end of the first action rod 53. The other end of the auxiliary rod 57 is mounted on the main support 54.

[0053] The column 51 provides a rotational mounting reference for the push cylinder 52, and its rigid structure bears the force of the push cylinder 52 and the actuating rod, ensuring that the scraping assembly 5 will not shift as a whole during operation. The height of the column 51 can be adapted to the installation position of the scraper plate 55, leaving sufficient space for the angle adjustment of the scraper plate 55. The push cylinder 52 converts air pressure energy into linear mechanical energy, which drives the first actuating rod 53 to rotate through the telescopic end, providing power for the angle adjustment of the scraper plate 55. The rotational connection with the column 51 is adapted to the angle change during the driving process, avoiding component jamming or damage caused by rigid connection. At the same time, the output force can be controlled by adjusting the air pressure, and the angle change range of the scraper plate 55 can be precisely adjusted.

[0054] The first actuating rod 53 converts the linear power of the cylinder 52 into its own rotational power, which is then simultaneously transmitted to the second actuating rod 56, causing the scraper plate 55 to rotate. Simultaneously, its cooperation with the auxiliary rod 57 limits its rotation range, preventing excessive rotation that could lead to abnormal angles in the scraper plate 55. This ensures smooth power transmission from the cylinder 52 to the scraper plate 55, avoiding angular obstacles during power transmission that could cause component wear. The synergistic effect with the auxiliary rod 57 ensures precise and controllable angle adjustment of the scraper plate 55, preventing incomplete scraping or mold damage due to excessive rotation. This improves the safety and reliability of the scraping action and reduces scraping quality problems caused by power transmission deviations.

[0055] The main support 54 provides a rotation fulcrum for the scraper plate 55, limiting its movement trajectory. Simultaneously, it provides a fixed installation position for the auxiliary rod 57. Through the cooperation of the auxiliary rod 57 and the first action rod 53, the angle adjustment process of the scraper plate 55 is further stabilized, preventing displacement during vibration leveling. The scraper plate 55 directly contacts the concrete surface of the specimen 7 and moves along the surface of the specimen 7 under the drive of the moving structure, scraping away excess concrete and keeping the surface of the specimen 7 flat. Its rotational connection with the main support 54 adapts to angle adjustment requirements. Depending on the flatness of the concrete surface or the specifications of the specimen 7, the contact angle between itself and the surface of the specimen 7 can be adjusted to ensure thorough leveling, improve the molding quality of the specimen 7, and guarantee the accuracy of subsequent mechanical property test data.

[0056] The second actuating rod 56 converts the rotational power of the first actuating rod 53 into the rotational power of the scraper plate 55, causing the scraper plate 55 to adjust its angle around the fulcrum of the main support 54; it also adapts to the angle changes of both during the operation, avoiding component damage caused by rigid connection. One end of the auxiliary rod 57 is rotatably connected to the first actuating rod 53, and the other end is fixedly connected to the main support 54, forming a triangular stable structure, which limits the rotation range of the first actuating rod 53, preventing excessive rotation of the first actuating rod 53 from causing abnormal angle of the scraper plate 55; at the same time, it disperses the force on the first actuating rod 53, reducing the deformation of the first actuating rod 53 due to excessive force on one side, protecting the power transmission structure, improving the stability of the scraping action, and ensuring consistent scraping quality.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vibration device for pouring concrete specimens, characterized in that: The system includes a workbench (1) and a vibration table (2) mounted on the workbench (1). The vibration table (2) has a drive assembly (3), a mounting plate (212) and a sliding plate (213) inside its support frame (21). The drive assembly (3) is located at the bottom of the mounting plate (212). The drive assembly (3) is mounted at the bottom inside the support frame (21). The drive assembly (3) is symmetrically connected to a clamping assembly (4) for clamping the specimen (7). The two clamping assemblies (4) are symmetrically mounted on both sides of the support frame (21) and slide on the sliding plate (213). A leveling assembly (5) for leveling the concrete inside the specimen (7) is movably mounted on the workbench (1). The clamping assembly (4) includes an auxiliary frame (41), a linkage unit (42), and a clamping member (43). The driving assembly (3) drives the auxiliary frame (41) to slide on the sliding plate (213). The auxiliary frame (41) extends through and above the support frame (21). The support frame (21) has a base plate (211) installed at both ends of its top. One end of the linkage unit (42) is fixed on the base plate (211), and the other end is installed on the clamping member (43). The two ends of the auxiliary frame (41) are rotatably connected to the two linkage units (42) respectively. A buffer assembly (6) is installed on the side of the clamping member (43) near the specimen (7).

2. The vibration device for pouring concrete specimens according to claim 1, characterized in that: The drive assembly (3) includes a telescopic cylinder (31) and a connecting plate (32). The telescopic cylinder (31) is installed inside the support frame (21). The output end of the telescopic cylinder (31) drives the connecting plate (32) to move. A push-pull rod (33) is symmetrically rotatably arranged on the connecting plate (32). The other end of the push-pull rod (33) is rotatably connected to the auxiliary frame (41). The support frame (21) has protrusion holes on both sides for the movement of the auxiliary frame (41).

3. The vibration device for pouring concrete specimens according to claim 1, characterized in that: The clamping member (43) is U-shaped.

4. The vibration device for pouring concrete specimens according to claim 1, characterized in that: The clamping member (43) includes a base plate (431) and an extension plate (432). The extension plate (432) can be adjusted at both ends of the base plate (431). The base plate (431) has a plurality of adjustment holes spaced apart along its length. Connectors are installed on the adjustment holes. The extension plate (432) has corresponding through holes. The connector passes through one of the adjustment holes and the through hole to connect the base plate (431) and the extension plate (432).

5. The vibration device for pouring concrete specimens according to claim 4, characterized in that: The buffer assembly (6) includes a plurality of springs (61) and abutment plates (62), one end of the springs (61) being connected to the base plate (431) and the other end being connected to the abutment plates (62).

6. The vibration device for pouring concrete specimens according to claim 1, characterized in that: The linkage unit (42) includes a first linkage (421), a second linkage (422), and a third linkage (423). One end of the first linkage (421) is rotatably mounted on the base plate (211), and the other end is rotatably connected to the second linkage (422). The other end of the second linkage (422) is rotatably connected to the third linkage (423). The other end of the third linkage (423) is rotatably mounted on one side of the clamping member (43). The end of the auxiliary frame (41) is rotatably mounted on the second linkage (422).

7. The vibration device for pouring concrete specimens according to claim 1, characterized in that: The workbench (1) is equipped with a first power source (11) and a first lead screw (12) at one end and a first guide rod (13) at the other end. The output end of the first power source (11) drives the first lead screw (12) to rotate. A first nut seat (121) is threadedly connected to the first lead screw (12). A first sliding sleeve (131) is slidably sleeved on the first guide rod (13). A first telescopic rod (14) is installed on the first nut seat (121), and a second telescopic rod (15) is installed on the first sliding sleeve (131). A second lead screw (16) and a second guide post (17) are installed between the first telescopic rod (14) and the second telescopic rod (15). A second power source (18) for driving the second lead screw (16) to rotate is installed at one end. A second nut seat is threadedly connected to the second lead screw (16). A second sliding sleeve is slidably sleeved on the second guide post (17). A movable seat (19) is sleeved on the second nut seat and the second sliding sleeve. The scraping component (5) is installed on the movable seat (19).

8. The vibration device for pouring concrete specimens according to claim 7, characterized in that: The leveling assembly (5) includes multiple columns (51), on which a push cylinder (52) is rotatably mounted. The telescopic end of the push cylinder (52) is driven and connected to a first action rod (53). The push cylinder (52) and the first action rod (53) are rotatably connected. A main support (54) is installed on one side of the movable seat (19). The main support (54) is rotatably connected to a scraper plate (55). One end of the first action rod (53) is rotatably connected to a second action rod (56). The second action rod (56) is rotatably connected to the scraper plate (55). The other end of the first action rod (53) is rotatably connected to an auxiliary rod (57). The other end of the auxiliary rod (57) is mounted on the main support (54).

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