A highly stable, automatically positioned rotary worktable

Abstract

This utility model discloses a highly stable, automatically positioning rotary worktable, relating to the field of worktable technology. The utility model includes a base frame, with a rotating mechanism fixedly connected to the top of the base frame, and a circular steel plate fixedly connected to the top of the rotating mechanism. By employing six support columns corresponding to the six corners of the hexagonal base frame, this utility model forms a multi-point uniform support structure, which can evenly distribute the weight of the worktable and the weight of the workpiece it carries to each support point, effectively avoiding swaying caused by a shift in the center of gravity. The casters can roll along with the rotating circular steel plate, reducing friction during rotation and further enhancing the stability of the worktable. A first motor drives a second pulley to rotate, which in turn drives the first pulley to rotate via a belt, thereby driving a reducer. The reducer controls the rotation speed, quickly determines and adjusts the rotation direction of the table, achieving precise automatic positioning.

Description

Technical Field

[0001] This utility model belongs to the field of workbench technology, and in particular relates to a highly stable rotary workbench that can be automatically positioned. Background Technology

[0002] In major fields such as industrial production, machining, and automated assembly, rotary tables serve as important auxiliary equipment, undertaking the key function of supporting workpieces and realizing their rotational motion. They can significantly improve the operational flexibility and automation level in the production process. A common technical solution is to directly drive the rotary axis of the table with a motor. In order to achieve deceleration and torque amplification, some products are equipped with a reducer. In terms of support structure, fixed support legs are usually used to support the table to ensure its basic load-bearing capacity.

[0003] Existing rotary tables use a single support leg structure. When the table rotates, its center of gravity may shift due to the different positions of the workpieces. In this case, the single support leg is difficult to effectively buffer and stabilize the table's sway, which can easily lead to vibration during rotation, affecting machining accuracy. This vibration is more pronounced when carrying heavy workpieces, and in severe cases, it may even cause the workpiece to fall off. In addition, some existing rotary tables do not have height adjustment functions. When it is necessary to adjust the height of the table surface according to different machining requirements, external tools are often required, which is cumbersome, inflexible, and cannot quickly adapt to different production scenarios.

[0004] To address these issues, we provide a highly stable, automatically positioning rotary table. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable, automatically positioned rotary worktable. By cooperating with the rotating mechanism and the worktable assembly, it solves the problems of insufficient stability, easy vibration during rotation, and lack of convenient height adjustment function in existing rotary worktables.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a highly stable, automatically positioning rotary worktable, comprising a base frame. A rotating mechanism is fixedly connected to the top of the base frame, and a circular steel plate is fixedly connected to the top of the rotating mechanism. A worktable assembly is fixedly connected to the top of the circular steel plate. The rotating mechanism includes six support columns, the bottom of which is fixedly connected to the base frame. Casters are movably connected to the top of each support column via a pivot. A fixed plate is fixedly connected to the center of the base frame, and a reducer is fixedly connected to the top of the fixed plate. A first pulley is fixedly connected to one side of the reducer, and a first motor is fixedly connected to one side of the top of the fixed plate. A second pulley is fixedly connected to the output end of the first motor, and the second pulley is connected to the first pulley via a belt. The top of the reducer is fixedly connected to the circular steel plate. The bottoms of the six support columns are securely connected to the base frame, providing support to the upper structure from different positions on the base frame. The tops of the support columns are movably connected to the casters via pivots. The connection method allows the casters to rotate flexibly. When the circular steel plate rotates with the rotating mechanism, the casters contact the bottom of the circular steel plate and roll along with it. On the one hand, this provides stable support for the circular steel plate and distributes the weight of the circular steel plate and the worktable assembly above it. On the other hand, rolling friction replaces sliding friction, greatly reducing the resistance encountered by the circular steel plate during rotation and making the rotation process smoother and more stable. The fixed plate at the center of the base frame provides a stable mounting platform for the reducer and the first motor, ensuring that they do not shift position during operation. The first pulley on one side of the reducer is connected to the second pulley at the output end of the first motor through belt drive, which can stably transmit the power of the first motor to the reducer. When the first motor is working, the output end drives the second pulley to rotate, which in turn drives the first pulley to rotate through the belt, thereby driving the reducer to run. The top of the reducer is fixedly connected to the circular steel plate, allowing the reducer to accurately drive the circular steel plate and the worktable assembly above it to rotate.

[0008] This utility model is further configured such that the workbench assembly includes a base shell, the bottom of which is fixedly connected to a circular steel plate. A threaded tube is movably connected to the bottom of the inner cavity of the base shell via a bearing. A first gear is fixedly connected to the surface of the threaded tube. A second motor is fixedly connected to one side of the top of the base shell. A second gear is fixedly connected to the output end of the second motor. The second gear meshes with the first gear. A threaded rod is threadedly connected to the top of the threaded tube. A mounting base is fixedly connected to the top of the threaded rod. A table is fixedly connected to the top of the mounting base. When the second motor is working, it drives the threaded tube to rotate through the meshing transmission of the second gear and the first gear. The threaded connection between the threaded tube and the threaded rod converts the rotational motion into linear motion, thereby realizing the lifting and lowering of the mounting base and the table. No manual operation is required, the degree of automation is high, and it can quickly adapt to the processing height requirements of different workpieces, improving the versatility and ease of operation of the workbench, and further meeting the usage requirements of diverse production scenarios.

[0009] The present invention is further configured such that limiting rods are fixedly connected to both sides of the bottom of the platform, and limiting holes are opened on both sides of the inner cavity of the bottom shell. The bottom of the limiting rod extends into the inner cavity of the limiting hole. The limiting rod cooperates with the limiting hole of the inner cavity of the bottom shell, which plays an effective guiding and limiting role in the lifting and lowering of the platform. During the lifting and lowering of the platform, the limiting rod moves along the inner cavity of the limiting hole, which avoids the platform from shifting left and right or shaking due to the gap of the threaded transmission or the influence of external force, and ensures the stability and verticality of the platform during the height adjustment process.

[0010] The present invention is further configured such that the base frame is a hexagonal structure, with six support columns corresponding to the six corners of the base frame. The hexagonal structure of the base frame and the six support columns corresponding to the six corners of the base frame fully utilize the strong stability of the hexagon. The six support columns are evenly distributed on each corner of the base frame, which can evenly distribute the weight of the upper structure and the load it bears to each part of the base frame, making the force on the base frame more balanced and effectively enhancing the overall structural stability of the entire workbench.

[0011] The present invention is further configured such that an annular limiting frame is fixedly connected to the bottom of the annular steel plate, one side of which contacts the caster. The annular limiting frame fixed to the bottom of the annular steel plate contacts the caster, which plays a limiting and guiding role in the rotation of the annular steel plate. The annular limiting frame can restrict the rolling trajectory of the caster, ensuring that the annular steel plate always rotates around a fixed central axis, avoiding the annular steel plate from deviating or shaking during rotation, and ensuring the coaxiality and stability of the rotation.

[0012] The present invention is further configured such that a positioning plate is fixedly connected to the top of the reducer, and a positioning hole is provided on the top of the positioning plate. The positioning plate is fixedly connected to the circular steel plate through the positioning hole. The positioning hole can accurately position the relative position of the reducer and the circular steel plate, ensuring that the central axes of the two coincide, and avoiding the problem of rotational imbalance caused by installation deviation.

[0013] The present invention is further configured such that heat sinks are fixedly connected to both sides of the reducer, and the heat sinks are equidistant from each other. The heat sinks increase the contact area between the reducer and the air, accelerate the heat dissipation speed, and enable the reducer to work at a suitable temperature, maintaining good transmission efficiency and stability.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses six support columns corresponding to the six corners of a hexagonal base to form a multi-point uniform support structure, which can evenly distribute the weight of the workbench and the weight of the workpiece to each support point, effectively avoiding swaying caused by the shift of the center of gravity. The casters can roll with the rotation of the circular steel plate, reducing the friction during the rotation process and further enhancing the stability of the workbench. The first motor drives the second pulley to rotate, and the second pulley drives the first pulley to rotate through the belt, which in turn drives the reducer to work. The reducer controls the rotation speed, quickly determines and adjusts the rotation direction of the table, and achieves precise automatic positioning.

[0016] 2. This utility model uses a second motor to drive a second gear to rotate. The second gear meshes with the first gear, thereby driving the threaded tube to rotate. The threaded tube is threadedly connected to the threaded rod, allowing the threaded rod to move up and down, which in turn drives the mounting base and the table to rise and fall. The second motor drives the automatic adjustment. The cooperation between the threaded tube and the threaded rod can quickly position the height of the table to adapt to different processing needs and production scenarios, enhancing the versatility and flexibility of the workbench. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a 3D view of a highly stable, automatically positioning rotary worktable.

[0019] Figure 2 This is a bottom-view perspective of a highly stable, automatically positioning rotary worktable.

[0020] Figure 3 This is a perspective view of a worktable assembly in a highly stable, automatically positioned rotary worktable.

[0021] Figure 4 This is a three-dimensional view of the rotating mechanism in a highly stable, automatically positioning rotary worktable.

[0022] Figure 5 In a highly stable rotary table capable of automatic positioning Figure 4 A magnified view of part A.

[0023] In the attached diagram: 1. Base frame; 2. Rotating mechanism; 21. Support column; 22. Caster; 23. Fixing plate; 24. Reducer; 25. First pulley; 26. First motor; 27. Second pulley; 3. Circular steel plate; 4. Workbench assembly; 41. Bottom shell; 42. Threaded pipe; 43. First gear; 44. Second motor; 45. Second gear; 46. Threaded rod; 47. Table surface; 5. Limiting rod; 6. Limiting hole; 7. Circular limiting frame; 8. Positioning plate; 9. Positioning hole; 10. Heat sink. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0025] Please see Figure 1-5 This utility model is a highly stable, automatically positioned rotary workbench, including a base frame 1. A rotating mechanism 2 is fixedly connected to the top of the base frame 1. A circular steel plate 3 is fixedly connected to the top of the rotating mechanism 2. A workbench assembly 4 is fixedly connected to the top of the circular steel plate 3. The rotating mechanism 2 includes six support columns 21. The bottom of the support columns 21 is fixedly connected to the base frame 1. Casters 22 are movably connected to the top of the support columns 21 via a pivot. A fixed plate 23 is fixedly connected to the center of the base frame 1. A reducer 24 is fixedly connected to the top of the fixed plate 23. A first pulley 25 is fixedly connected to one side of the reducer 24. A first motor 26 is fixedly connected to one side of the top of the fixed plate 23. A second pulley 27 is fixedly connected to the output end of the first motor 26. The second pulley 27 is connected to the first pulley 25 via a belt. The top of the reducer 24 is fixedly connected to the circular steel plate 3.

[0026] Specifically: The bottoms of the six support columns 21 are firmly connected to the base frame 1, providing support to the upper structure from different positions on the base frame 1. The tops of the support columns 21 are movably connected to the casters 22 via pivots. This connection allows the casters 22 to rotate flexibly. When the circular steel plate 3 rotates with the rotating mechanism 2, the casters 22 contact the bottom of the circular steel plate 3 and roll along with it. On the one hand, this provides stable support for the circular steel plate 3, distributing the weight of the circular steel plate 3 and the upper worktable assembly 4. On the other hand, rolling friction replaces sliding friction, greatly reducing the resistance encountered by the circular steel plate 3 during rotation, making the rotation process smoother and more stable. The fixed plate 2 at the center of the base frame 1... 3 provides a stable mounting platform for the reducer 24 and the first motor 26, ensuring that they do not shift position during operation. The first pulley 25 on one side of the reducer 24 is connected to the second pulley 27 at the output end of the first motor 26 via belt drive, which can stably transmit the power of the first motor 26 to the reducer 24. When the first motor 26 is working, the output end drives the second pulley 27 to rotate, which in turn drives the first pulley 25 to rotate via the belt, thereby driving the reducer 24 to run. The top of the reducer 24 is fixedly connected to the annular steel plate 3, so that the reducer 24 can accurately drive the annular steel plate 3 and the worktable assembly 4 above it to rotate. Example

[0027] Please see Figure 1-5 Based on Embodiment 1, the workbench assembly 4 includes a base shell 41, the bottom of which is fixedly connected to a circular steel plate 3. A threaded tube 42 is movably connected to the bottom of the inner cavity of the base shell 41 via a bearing. A first gear 43 is fixedly connected to the surface of the threaded tube 42. A second motor 44 is fixedly connected to one side of the top of the base shell 41. A second gear 45 is fixedly connected to the output end of the second motor 44, and the second gear 45 meshes with the first gear 43. A threaded rod 46 is threadedly connected to the top of the threaded tube 42. A mounting base is fixedly connected to the top of the threaded rod 46. A table surface 47 is fixedly connected to the top of the mounting base. The bottom of the table surface 47... Limiting rods 5 are fixedly connected to both sides of the reducer 24. Limiting holes 6 are opened on both sides of the inner cavity of the bottom shell 41. The bottom of the limiting rods 5 extends into the inner cavity of the limiting holes 6. The base frame 1 has a hexagonal structure, with six support columns 21 corresponding to the six corners of the base frame 1. A ring-shaped limiting frame 7 is fixedly connected to the bottom of the ring steel plate 3. One side of the ring-shaped limiting frame 7 contacts the caster 22. A positioning plate 8 is fixedly connected to the top of the reducer 24. A positioning hole 9 is opened on the top of the positioning plate 8. The positioning plate 8 is fixedly connected to the ring steel plate 3 through the positioning hole 9. Heat sinks 10 are fixedly connected to both sides of the reducer 24. The heat sinks 10 are equidistantly arranged.

[0028] Specifically: When the second motor 44 is working, it drives the threaded tube 42 to rotate through the meshing transmission of the second gear 45 and the first gear 43. The threaded connection between the threaded tube 42 and the threaded rod 46 converts the rotational motion into linear motion, thereby realizing the lifting and lowering of the mounting base and the table 47. This eliminates the need for manual operation, resulting in a high degree of automation. It can quickly adapt to the processing height requirements of different workpieces, improving the versatility and ease of operation of the worktable, and further meeting the usage requirements of diverse production scenarios. The limiting rod 5 cooperates with the limiting hole 6 in the inner cavity of the base shell 41, effectively guiding and limiting the lifting and lowering of the table 47. During the lifting and lowering process of the table 47, the limiting rod 5 moves along the inner cavity of the limiting hole 6, preventing the table 47 from shifting left or right or wobbling due to the gap in the threaded transmission or the influence of external forces. This ensures the stability and verticality of the table 47 during height adjustment. The base frame 1 adopts a hexagonal structure, with six support columns 21 corresponding to the six corners of the base frame 1, fully utilizing the strong stability of the hexagon. Six support columns 21 are evenly distributed at each corner of the base frame 1, which can evenly distribute the weight of the upper structure and the load on the base frame 1 to various parts of the base frame 1, making the base frame 1 more balanced and effectively enhancing the overall structural stability of the entire workbench. The annular limit frame 7 fixed at the bottom of the circular steel plate 3 contacts the caster 22, which plays a limiting and guiding role in the rotation of the circular steel plate 3. The annular limit frame 7 can limit the rolling trajectory of the caster 22, ensuring that the circular steel plate 3 always rotates around the fixed central axis, avoiding the circular steel plate 3 from deviating or shaking during rotation, and ensuring the coaxiality and stability of rotation. The positioning hole 9 can accurately position the relative position of the reducer 24 and the circular steel plate 3, ensuring that the central axes of the two coincide, avoiding the rotational imbalance problem caused by installation deviation. The heat sink 10 increases the contact area between the reducer 24 and the air, accelerates the heat dissipation speed, and enables the reducer 24 to work at a suitable temperature, maintaining good transmission efficiency and stability.

[0029] The working principle of this utility model is as follows: When the worktable needs to rotate, the first motor 26 starts and drives the second pulley 27 to rotate. The second pulley 27 transmits power to the first pulley 25 through the belt, causing the first pulley 25 to rotate accordingly, which in turn drives the reducer 24 to run. After receiving the power, the reducer 24 transmits the power to the circular steel plate 3 that is fixedly connected to it, thereby driving the circular steel plate 3 to rotate. The worktable assembly 4 on the top of the circular steel plate 3 also rotates synchronously. During this process, the casters 22 on the top of the six support columns 21 on the base frame 1 contact the bottom of the circular steel plate 3 and roll as the circular steel plate 3 rotates, providing stable support for the circular steel plate 3. At the same time, the rolling friction reduces the rotational resistance and ensures smooth rotation. Meanwhile, the annular limiting frame 7 at the bottom of the circular steel plate 3 contacts the casters 22, restricting the rolling trajectory of the casters 22 and ensuring that the circular steel plate 3 rotates around the fixed central axis, thereby enhancing the stability and coaxiality of the rotation.

[0030] When the height of the platform 47 needs to be adjusted, the second motor 44 starts and drives the second gear 45 to rotate. Since the second gear 45 meshes with the first gear 43 on the surface of the threaded tube 42, the rotation of the second gear 45 will drive the first gear 43 and the threaded tube 42 to rotate together. The threaded tube 42 and the threaded rod 46 are threadedly connected. The rotation of the threaded tube 42 causes the threaded rod 46 to move up and down under the action of the thread. The mounting seat at the top of the threaded rod 46 and the platform 47 also rise and fall accordingly, thereby realizing the adjustment of the height of the platform 47. At the same time, the limiting rod 5 at the bottom of the platform 47 moves in the limiting hole 6 in the inner cavity of the bottom shell 41, which guides and limits the rise and fall of the platform 47, preventing the platform 47 from deviating or shaking during the rise and fall process, and ensuring the stability and accuracy of the height adjustment.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A highly stable, automatically positioning rotary worktable, comprising a base frame (1), characterized in that: A rotating mechanism (2) is fixedly connected to the top of the base frame (1), a circular steel plate (3) is fixedly connected to the top of the rotating mechanism (2), and a workbench assembly (4) is fixedly connected to the top of the circular steel plate (3). The rotating mechanism (2) includes six support columns (21). The bottom of the support columns (21) is fixedly connected to the base frame (1). The top of the support columns (21) is movably connected to casters (22) via a rotating shaft. A fixed plate (23) is fixedly connected to the center of the base frame (1). A reducer (24) is fixedly connected to the top of the fixed plate (23). A first pulley (25) is fixedly connected to one side of the reducer (24). A first motor (26) is fixedly connected to one side of the top of the fixed plate (23). A second pulley (27) is fixedly connected to the output end of the first motor (26). The second pulley (27) is connected to the first pulley (25) via a belt. The top of the reducer (24) is fixedly connected to a circular steel plate (3).

2. The highly stable, automatically positioned rotary worktable according to claim 1, characterized in that: The workbench assembly (4) includes a bottom shell (41), the bottom of which is fixedly connected to a circular steel plate (3). The bottom of the inner cavity of the bottom shell (41) is movably connected to a threaded tube (42) via a bearing. A first gear (43) is fixedly connected to the surface of the threaded tube (42). A second motor (44) is fixedly connected to one side of the top of the bottom shell (41). A second gear (45) is fixedly connected to the output end of the second motor (44). The second gear (45) meshes with the first gear (43). A threaded rod (46) is threadedly connected to the top of the threaded tube (42). A mounting base is fixedly connected to the top of the threaded rod (46). A table surface (47) is fixedly connected to the top of the mounting base.

3. The highly stable, automatically positioned rotary worktable according to claim 2, characterized in that: Limiting rods (5) are fixedly connected to both sides of the bottom of the platform (47), and limiting holes (6) are opened on both sides of the inner cavity of the bottom shell (41). The bottom of the limiting rod (5) extends into the inner cavity of the limiting hole (6).

4. The highly stable, automatically positioned rotary worktable according to claim 1, characterized in that: The base frame (1) is a hexagonal structure, with six support columns (21) corresponding to the six corners of the base frame (1).

5. A highly stable, automatically positioned rotary worktable according to claim 1, characterized in that: The bottom of the circular steel plate (3) is fixedly connected to an annular limiting frame (7), and one side of the annular limiting frame (7) is in contact with the caster (22).

6. A highly stable, automatically positioned rotary worktable according to claim 1, characterized in that: The top of the reducer (24) is fixedly connected to a positioning plate (8), and the top of the positioning plate (8) is provided with a positioning hole (9). The positioning plate (8) is fixedly connected to the circular steel plate (3) through the positioning hole (9).

7. A highly stable, automatically positioned rotary worktable according to claim 1, characterized in that: Heat sinks (10) are fixedly connected to both sides of the reducer (24), and the heat sinks (10) are equidistant from each other.

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