Robot secondary lifting mechanism

Abstract

The utility model relates to the technical field of robots, in particular to a secondary lifting mechanism of a robot, which is characterized in that a lifting frame is mounted on a rack in a sliding manner, and then a lifting platform is mounted on the lifting frame in a sliding manner, so that a secondary lifting effect is realized. Meanwhile, a driving motor and a first synchronous belt are designed on the lifting frame, and the first synchronous belt is driven by the driving motor to rotate on the lifting frame so that the lifting frame can ascend and descend relative to the rack. The lifting platform and the rack are connected through the second synchronous belt, so that when the lifting frame ascends and descends relative to the rack, due to the fact that the rack restrains the second synchronous belt, the second synchronous belt is driven to rotate on the lifting frame, and then the lifting platform is driven to ascend and descend relative to the lifting frame; and two-stage lifting can be achieved only through one driving motor, and simplicity and convenience are achieved.

Description

Technical Field

[0001] This utility model relates to the field of robotics technology, and in particular to a two-stage lifting mechanism for a robot. Background Technology

[0002] Current multi-stage lifting mechanisms generally employ multiple independent power sources in their design to ensure that the power supply for each lifting stage is handled independently. However, while this multi-power-source transmission mechanism demonstrates significant advantages in improving overall efficiency, it also inevitably exacerbates the high dependence on the precision of power source control. This increased dependence means that during the two-stage lifting process, even a small deviation in the output of any power source can severely affect the linear motion accuracy of the entire system. Such fluctuations in precision not only reduce work efficiency but may also trigger a series of unnecessary mechanical failures. Furthermore, the parallel use of multiple power sources means that the mechanism needs to bear more weight, which undoubtedly increases the overall weight of the mechanism and, to some extent, limits its flexibility.

[0003] To reduce the number of power sources, most multi-stage lifting mechanisms widely employ gear and rack transmission mechanisms. This design utilizes the meshing action between gears and racks to transmit power from one stage to the next, thus completing the lifting action at each stage. However, it is undeniable that its manufacturing cost is relatively high, not only due to the selection of raw materials but also because of the increased machining precision and process complexity. This high manufacturing cost undoubtedly increases the initial investment, which may be an unbearable burden for projects with limited budgets. Furthermore, during long-term use, gear and rack systems, especially open gear and rack systems, also have relatively high maintenance and replacement complexity. Due to the influence of external factors such as dust and impurities in the working environment, the wear of open gear and rack systems is particularly significant, which not only shortens their service life but also increases maintenance costs. For maintenance personnel, this undoubtedly increases the difficulty and intensity of their work, while also placing higher demands on the professionalism and timeliness of maintenance work. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a two-stage lifting mechanism for robots, comprising:

[0005] frame;

[0006] A lifting frame, which is slidably mounted on the frame;

[0007] A lifting platform, which is slidably mounted on the lifting frame;

[0008] The lifting frame is equipped with a first synchronous belt and a second synchronous belt at both ends along its sliding direction relative to the frame. One side of the first synchronous belt is fixedly connected to the frame. The lifting frame is equipped with a drive motor for driving the first synchronous belt to rotate. The two sides of the second synchronous belt are respectively connected to the frame and the lifting platform.

[0009] In some possible embodiments, the lifting frame is provided with mounting seats at both ends along its sliding direction relative to the frame, and each mounting seat is rotatably mounted with a wheel. The first synchronous belt and the second synchronous belt are respectively wound around the two corresponding wheels at both ends of the lifting frame, and the rotating end of the drive motor is connected to the rotation center of the corresponding wheel.

[0010] In some possible embodiments, the second synchronous belt is provided in two parts, and is respectively wrapped around both sides of the lifting frame along the sliding direction.

[0011] In some possible embodiments, a clamp is connected to the first synchronous belt and the clamp is connected to the frame. The clamp is also provided on the two sides of the second synchronous belt with different rotation directions. Any one of the clamps is connected to the frame, and the remaining clamp is connected to the lifting platform.

[0012] In some possible embodiments, the lifting platform is provided with a mounting plate, and the corresponding clamping block is fixedly connected to the mounting plate.

[0013] In some possible embodiments, the frame is provided with at least one first slide rail, and the lifting frame is slidably mounted on the first slide rail by a first slider.

[0014] In some possible embodiments, the lifting frame is provided with at least one second slide rail, and the lifting platform is slidably mounted on the second slide rail via a second slider.

[0015] In some possible embodiments, the lifting frame is provided with a fixed base, which is detachably mounted on the lifting frame, and the drive motor is mounted on the fixed base.

[0016] Compared to existing technologies, the advantages of this invention are as follows: The robot's two-stage lifting mechanism of this invention features a lifting frame slidably mounted on the frame, and a lifting platform slidably mounted on the lifting frame, thus achieving a two-stage lifting effect. Simultaneously, a drive motor and a first synchronous belt are designed on the lifting frame. The drive motor drives the first synchronous belt to rotate on the lifting frame, simultaneously raising and lowering the lifting frame relative to the frame. A second synchronous belt connects the lifting platform and the frame. This structural arrangement ensures that when the lifting frame raises and lowers relative to the frame, the frame's constraint on the second synchronous belt causes the second synchronous belt to also rotate on the lifting frame, thereby raising and lowering the lifting platform relative to the lifting frame. Two-stage lifting can be achieved with only one drive motor, which is simple and convenient. Furthermore, it is a two-stage synchronous lifting mechanism, achieving double-range lifting, making control simpler and more convenient, and ensuring lifting accuracy. The synchronous belt design also facilitates future replacement, resulting in low maintenance costs. Attached Figure Description

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

[0018] Figure 1 Schematic diagram of the robot's two-stage lifting mechanism provided in this embodiment of the utility model Figure 1 ;

[0019] Figure 2 Schematic diagram of the robot's two-stage lifting mechanism provided in this embodiment of the utility model Figure 2 ;

[0020] Figure 3 A partial structural schematic diagram of the robot's two-stage lifting mechanism provided in this embodiment of the utility model.

[0021] Reference numerals: frame 10, first slide rail 11, lifting frame 20, first synchronous belt 21, second synchronous belt 22, drive motor 23, mounting base 24, winding wheel 25, second slide rail 26, fixed base 27, lifting platform 30, mounting plate 31, clamping block 40. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Hereinafter, the terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0023] Reference Figures 1 to 3 The robot's two-stage lifting mechanism shown includes a frame 10, a lifting frame 20, and a lifting platform 30. The lifting frame 20 is slidably mounted on the frame 10; the lifting platform 30 is slidably mounted on the lifting frame 20; a first synchronous belt 21 and a second synchronous belt 22 are respectively wound around both ends of the lifting frame 20 along its sliding direction relative to the frame 10. One side of the first synchronous belt 21 is fixedly connected to the frame 10. A drive motor 23 for driving the first synchronous belt 21 to rotate is provided on the lifting frame 20. Both sides of the second synchronous belt 22 are respectively connected to the frame 10 and the lifting platform 30. When the drive motor 23 drives the first synchronous belt 21 to rotate so that the lifting frame 20 rises and falls relative to the frame 10, the second synchronous belt 22 follows the rising and falling action of the lifting frame 20 and rotates to lift the lifting platform 30 up and down on the lifting frame 20.

[0024] In this design, the frame 10, lifting frame 20, and lifting platform 30 all adopt a frame structure design for lightweight construction and ease of installation. The frame structure can be hollowed out to reduce overall weight. The lifting frame 20 is slidably mounted on opposite sides of the frame 10, effectively ensuring its sliding stability. The frame 10 also includes other mounting structures, such as connecting beams or bases (not shown), which ensure the overall structural stability of the frame 10. Similarly, the lifting frame 20 also adopts this structural design. In this application, the drive motor 23 is preferably a servo motor for precise control.

[0025] It should be further clarified that the two sides mentioned above regarding the second synchronous belt 22 refer to the two parts of the second synchronous belt 22 that run in opposite directions when it is looped around the lifting frame 20, not the two sides along the width of the second synchronous belt 22. When the lifting frame 20 rises relative to the machine frame 10, the entire lifting frame 20 and the lifting platform 30 mounted on it rise together relative to the machine frame 10. The lifting platform 30 is connected to the machine frame 10 via the second synchronous belt 22. Since the weight of the lifting platform 30 is less than the force exerted by the lifting frame 20 to lift it, the machine frame 10 rotates by pulling the second synchronous belt 22, which in turn causes the lifting platform 30 to gradually rise on the lifting frame 20. When the lifting frame 20 descends relative to the machine frame 10, the weight of the lifting platform 30 is greater than the force exerted by the lifting frame 20 to lift it, causing the lifting platform 30 to actively pull the second synchronous belt 22 in the opposite direction, and the lifting platform 30 gradually descends relative to the lifting frame 20.

[0026] This robot's two-stage lifting mechanism features a lifting frame 20 slidably mounted on the frame 10, and a lifting platform 30 slidably mounted on the lifting frame 20, achieving a two-stage lifting effect. A drive motor 23 and a first synchronous belt 21 are designed on the lifting frame 20. The drive motor 23 drives the first synchronous belt 21 to rotate on the lifting frame 20, simultaneously raising and lowering the lifting frame 20 relative to the frame 10. A second synchronous belt 22 connects the lifting platform 30 and the frame 10. This structural design ensures that when the lifting frame 20 raises and lowers relative to the frame 10, the constraint of the frame 10 on the second synchronous belt 22 causes the second synchronous belt 22 to also rotate on the lifting frame 20, thereby raising and lowering the lifting platform 30 relative to the lifting frame 20. Two-stage synchronous lifting can be achieved with only one drive motor 23, enabling double-range lifting, simplifying control, and ensuring lifting accuracy.

[0027] Reference Figure 1 and Figure 2 As shown, there are two lifting frames 20, which are connected by a connecting beam (not shown) and integrated into one unit. Each lifting frame 20 slides independently on a corresponding side of the frame 10. This structural design effectively improves the overall sliding balance of the lifting frame 20 and also increases its load-bearing capacity. Mounting seats 24 are provided at both ends of the lifting frame 20 along its sliding direction relative to the frame 10. Each mounting seat 24 has a rotatable wheel 25. A first synchronous belt 21 and a second synchronous belt 22 are respectively wound around the two corresponding wheels 25 at both ends of the lifting frame 20. The rotating end of the drive motor 23 is connected to the rotation center of the corresponding wheel 25. To improve the smoothness of movement, two second synchronous belts 22 are provided, respectively wound around both sides of the lifting frame 20 along the sliding direction.

[0028] To facilitate the fixed connection between the first synchronous belt 21 and the second synchronous belt 22 and their corresponding structures, a clamping block 40 is connected to the first synchronous belt 21. The clamping block 40 is connected to the frame 10. Clamping blocks 40 are also provided on both sides of the second synchronous belt 22 with different rotation directions. One clamping block 40 is connected to the frame 10, and the other clamping block 40 is connected to the lifting platform 30. The clamping block 40 is composed of two interlocking plates, which are fixed together by bolts. It can also hold the first synchronous belt 21 and the second synchronous belt 22 tightly inside, preventing the clamping block 40 from slipping relative to the first synchronous belt 21 and the second synchronous belt 22.

[0029] Reference Figure 1 and Figure 2 As shown, in order to facilitate installation, the lifting platform 30 is provided with a mounting plate 31, and the corresponding clamping block 40 is fixedly connected to the mounting plate 31. The mounting plate 31 can provide an installation position for the clamping block 40.

[0030] Reference Figures 1 to 3 As shown, to facilitate the sliding of the lifting frame 20 relative to the frame 10, at least one first slide rail 11 is provided on the frame 10, and the lifting frame 20 is slidably mounted on the first slide rail 11 via a first slider. To ensure smooth sliding of the lifting frame 20, two first slide rails 11 are arranged in parallel.

[0031] To facilitate the sliding of the lifting platform 30 relative to the lifting frame 20, at least one second slide rail 26 is provided on the lifting frame 20, and the lifting platform 30 is slidably mounted on the second slide rail 26 via a second slider.

[0032] To facilitate the installation of the drive motor 23, a fixed seat 27 is provided on the lifting frame 20. The fixed seat 27 can be detachably installed on the lifting frame 20, and the drive motor 23 is installed on the fixed seat 27.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A two-stage lifting mechanism for a robot, characterized in that, include: frame; A lifting frame, which is slidably mounted on the frame; A lifting platform, which is slidably mounted on the lifting frame; The lifting frame is equipped with a first synchronous belt and a second synchronous belt at both ends along its sliding direction relative to the frame. One side of the first synchronous belt is fixedly connected to the frame. The lifting frame is equipped with a drive motor for driving the first synchronous belt to rotate. The two sides of the second synchronous belt are respectively connected to the frame and the lifting platform.

2. The robot two-stage lifting mechanism according to claim 1, characterized in that, The lifting frame is provided with mounting seats at both ends along its sliding direction relative to the frame. Each mounting seat is rotatably mounted with a wheel. The first synchronous belt and the second synchronous belt are respectively wound around the two corresponding wheels at both ends of the lifting frame. The rotating end of the drive motor is connected to the rotation center of the corresponding wheel.

3. The robot two-stage lifting mechanism according to claim 1, characterized in that, The second synchronous belt has two sections, which are respectively mounted on both sides of the lifting frame along the sliding direction.

4. The robot two-stage lifting mechanism according to claim 1, characterized in that, A clamp is connected to the first synchronous belt and the clamp is connected to the frame. The clamp is also provided on the two sides of the second synchronous belt with different rotation directions. Any one of the clamps is connected to the frame, and the remaining clamp is connected to the lifting platform.

5. The robot two-stage lifting mechanism according to claim 4, characterized in that, The lifting platform is equipped with a mounting plate, and the corresponding clamping block is fixedly connected to the mounting plate.

6. The robot two-stage lifting mechanism according to claim 1, characterized in that, The frame is provided with at least one first slide rail, and the lifting frame is slidably mounted on the first slide rail via a first slider.

7. The robot two-stage lifting mechanism according to claim 1, characterized in that, The lifting frame is provided with at least one second slide rail, and the lifting platform is slidably mounted on the second slide rail via a second slider.

8. The robot two-stage lifting mechanism according to claim 1, characterized in that, The lifting frame is provided with a fixed base, which is detachably mounted on the lifting frame, and the drive motor is mounted on the fixed base.

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