High-precision automatic lifting adjustment induction structure

Abstract

The utility model relates to the technical field of automation equipment, and particularly discloses a high-precision automatic lifting adjustment sensing structure which comprises a base, the base is of a cuboid structure and is hollow, and worms arranged in parallel in the length direction are arranged in the base. The first lead screw and the second lead screw are rotationally connected to the left side and the right side of the upper end face of the base through bearings correspondingly, the sensor assembly detects the target height, the shielding state or the position deviation in real time and feeds back signals to an external control system to form closed-loop adjustment, and the lifting precision is dynamically adjusted. Idling errors are eliminated through pre-tightening balls of the gapless ball screw, stability and durability are improved through rigid constraint of a limiting groove and the protection design of a protective cover, the multi-mode sensor is matched with complex scenes, the overall structure is simplified and maintained, and the device is widely suitable for logistics sorting, semiconductor machining and other high-precision industrial automation scenes; the system has the advantages of high synchronism, safety and intelligent control.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and specifically discloses a high-precision automatic lifting and adjusting sensing structure. Background Technology

[0002] In the field of industrial automation, lifting and adjusting structures are core components in production lines, logistics sorting, and precision machining. Traditional lifting devices mainly rely on mechanical, hydraulic, or pneumatic systems, which have the following technical drawbacks:

[0003] The single-screw drive platform of the mechanical lifting system is prone to free rotation when starting or stopping due to the axial clearance between the screw and nut, which leads to the deviation of the lifting position (usually ≥2mm) and cannot meet the requirements of high-precision operation.

[0004] Traditional equipment often relies on manual operation or simple PLC control. For example, in the scenario of stacking PET sheets, the operator needs to adjust the lifting height based on visual judgment, which is inefficient and prone to errors.

[0005] Most mechanical lifting devices are not equipped with a reverse self-locking structure. In the event of a power outage or sudden load change, they may slide down due to gravity, posing a safety hazard. In addition, traditional lead screws and guide rails require frequent lubrication or replacement due to friction wear, resulting in economic losses. Utility Model Content

[0006] This invention proposes a high-precision automatic lifting and adjusting sensing structure. It uses sensor components to detect the target height, occlusion status, or positional deviation in real time and feeds the signals back to the external control system to form a closed-loop adjustment, dynamically adjusting the lifting accuracy. The multi-modal sensors are adaptable to complex scenarios, and the overall structure simplifies maintenance and is widely applicable to high-precision industrial automation scenarios such as logistics sorting and semiconductor processing. It also has the advantages of high synchronization, safety, and intelligent control.

[0007] This utility model is implemented as follows: a high-precision automatic lifting and adjusting sensing structure includes:

[0008] The base is a rectangular parallelepiped structure with a hollow interior, and the interior of the base is provided with a worm gear arranged parallel to the length direction.

[0009] The first lead screw and the second lead screw are rotatably connected to the left and right sides of the upper end face of the base respectively through bearings. The bottom ends of the first lead screw and the second lead screw extend to the inner side of the base and are fixedly connected to the first worm wheel and the second worm wheel. The first worm wheel and the second worm wheel are both meshed with the worm 2). The outer wall of the first lead screw is threaded with the third worm wheel.

[0010] A threaded seat is threadedly connected to the outer wall of the second lead screw, and mounting brackets are fixedly provided on both sides of the threaded seat;

[0011] A protective cover is fixed to the right side of the upper end face of the base and located outside the second lead screw;

[0012] Sensor assembly.

[0013] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the protective cover has vertical limiting grooves on its front and rear sides, and the two mounting brackets extend to the outside of the protective cover through the two limiting grooves respectively.

[0014] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the sensor assembly is installed at one end of the mounting bracket extending to the outside of the protective cover, and is used to detect the target height, object occlusion status, or positional deviation.

[0015] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the sensor assembly is electrically connected to an external control system, and the external control system is used to receive the real-time feedback signal from the sensor assembly.

[0016] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the meshing surfaces of the first and second worm gears with the worm are designed with reverse self-locking.

[0017] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the first lead screw and the second lead screw are backlash-free ball screws, and preloaded balls are provided in their threaded pairs.

[0018] As a preferred embodiment of the high-precision automatic lifting and adjusting sensing structure of this utility model, the sensor assembly includes at least one of an infrared sensor, a laser rangefinder, or a visual recognition camera. The infrared sensor is used to detect the occlusion state of an object, the laser rangefinder is used to measure the lifting height of the mounting bracket in real time, and the visual recognition camera is used to identify the positional deviation of the target object.

[0019] The beneficial effects of this utility model are:

[0020] The sensor assembly detects the target height, occlusion status, or positional deviation in real time and feeds the signal back to the external control system to form a closed-loop adjustment, dynamically adjusting the lifting accuracy. The reverse self-locking design of the worm gear and the first and second worm wheels prevents slippage due to gravity or load. The preloaded balls of the backlash-free ball screw eliminate idling errors. The rigid constraint of the limit groove and the protective design of the protective cover improve stability and durability. The multi-modal sensor is adaptable to complex scenarios. The overall structure simplifies maintenance and is widely applicable to high-precision industrial automation scenarios such as logistics sorting and semiconductor processing, while also possessing advantages in high synchronization, safety, and intelligent control. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram showing the disassembled state of the base front cover of this utility model;

[0024] Figure 3 This is a schematic diagram showing the disassembled state of the base front cover and top cover of this utility model.

[0025] The markings in the diagram are: 1. Base; 2. Worm gear; 3. First lead screw; 4. Second lead screw; 5. First worm wheel; 6. Second worm wheel; 7. Third worm wheel; 8. Threaded seat; 9. Mounting bracket; 10. Protective cover; 11. Limiting groove; 12. Sensor assembly. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0027] Please see Figure 1-3 A high-precision automatic lifting and adjusting sensing structure includes:

[0028] Base 1, which is a rectangular parallelepiped structure and hollow inside, has a worm gear 2 arranged parallel to the length direction inside the base 1;

[0029] The first lead screw 3 and the second lead screw 4 are rotatably connected to the left and right sides of the upper end face of the base 1 respectively through bearings. The bottom ends of the first lead screw 3 and the second lead screw 4 extend to the inner side of the base 1 and are fixedly connected to the first worm wheel 5 and the second worm wheel 6. The first worm wheel 5 and the second worm wheel 6 are both meshed with the worm 2. The outer wall of the first lead screw 3 is threaded with the third worm wheel 7.

[0030] Threaded seat 8 is threaded to the outer wall of the second lead screw 4, and mounting brackets 9 are fixed on both sides of the threaded seat 8;

[0031] Protective cover 10 is fixed to the right side of the upper end face of the base 1 and located outside the second lead screw 4;

[0032] Sensor assembly 12.

[0033] In this embodiment: the worm 2 inside the base 1 meshes with the first worm wheel 5 and the second worm wheel 6 to achieve synchronous driving of the first lead screw 3 and the second lead screw 4. When the external driving device acts on the third worm wheel 7 on the first lead screw 3, the first lead screw 3 drives the first worm wheel 5 to rotate. Through the linkage of the worm 2 and the second worm wheel 6, the second lead screw 4 rotates synchronously in the opposite direction, thereby driving the threaded seat 8 to rise and fall vertically along the second lead screw 4. The mounting bracket 9 is fixed on both sides of the threaded seat 8. The limiting groove 11 of the protective cover 10 constrains the movement to only the vertical direction, eliminating horizontal offset. The sensor assembly 12 detects the target in real time. The system measures the height, obstruction status, or positional deviation, and feeds the signal back to the external control system to form a closed-loop adjustment, dynamically adjusting the lifting accuracy. The reverse self-locking design of the worm gear 2 with the first worm wheel 5 and the second worm wheel 6 prevents the worm from sliding due to gravity or load. The pre-tightened balls of the backlash-free ball screw eliminate idling errors. The rigid constraint of the limit groove 11 and the protective design of the protective cover 10 improve stability and durability. The multi-modal sensor is suitable for complex scenarios. The overall structure simplifies maintenance and is widely applicable to high-precision industrial automation scenarios such as logistics sorting and semiconductor processing. It also has the advantages of high synchronization, safety, and intelligent control.

[0034] As a technical optimization of this utility model, vertical limiting grooves 11 are provided on the front and rear sides of the protective cover 10, and two mounting brackets 9 extend to the outside of the protective cover 10 through the two limiting grooves 11 respectively.

[0035] In this embodiment: the protective cover 10 has a limiting groove 11, and the mounting bracket 9 extends to the outside through the limiting groove 11. Its vertical movement is rigidly constrained by the limiting groove 11, allowing it to move only along the axial direction of the second lead screw 4. This design eliminates the horizontal degree of freedom of the mounting bracket 9 through physical limiting, avoids deviation caused by lead screw rotation or uneven load, and ensures that the lifting trajectory is absolutely vertical, thereby improving positioning accuracy and system stability. It is especially suitable for high-frequency lifting scenarios.

[0036] As a technical optimization of this utility model, the sensor assembly 12 is installed at one end of the mounting bracket 9 extending to the outside of the protective cover 10, and is used to detect the target height, object occlusion status or positional deviation.

[0037] In this embodiment, the sensor assembly 12 is installed at the end of the mounting bracket 9 to detect the target height (laser rangefinder), occlusion status (infrared sensor), or position deviation (visual recognition camera) in real time. The sensor data is directly fed back to the external control system to form a closed-loop adjustment link, dynamically correcting the rise and fall, seamlessly connecting sensing and execution, reducing the need for manual calibration, and significantly improving automation efficiency and response speed.

[0038] As a technical optimization of this utility model, the sensor assembly 12 is electrically connected to an external control system, which is used to receive the real-time feedback signal from the sensor assembly 12.

[0039] In this embodiment: the sensor assembly 12 is electrically connected to the external control system and transmits detection signals in real time. The control system accurately calculates the driving amount based on the feedback data and dynamically adjusts the rotation angle of the first lead screw 3 through a servo motor or cylinder.

[0040] As a technical optimization of this utility model, the meshing surfaces of the first worm gear 5 and the second worm gear 6 with the worm 2 adopt a reverse self-locking design.

[0041] In this embodiment, the meshing surfaces of the first worm wheel 5, the second worm wheel 6 and the worm 2 adopt a reverse self-locking design. When the drive stops, the frictional resistance between the worm wheel and the worm prevents the mounting bracket 9 from sliding down due to gravity or load, avoiding accidental displacement and safety accidents. At the same time, it reduces the reliance on mechanical brakes and reduces system complexity and cost.

[0042] As a technical optimization of this utility model, the first lead screw 3 and the second lead screw 4 are backlash-free ball screws, and their threaded pairs are provided with preloaded balls.

[0043] In this embodiment, the first lead screw 3 and the second lead screw 4 are backlash-free ball screws. The preloaded balls in their threaded pairs eliminate axial backlash and avoid the idling error during the start / stop of traditional lead screws.

[0044] As a technical optimization of this utility model, the sensor assembly 12 includes at least one of an infrared sensor, a laser rangefinder, or a visual recognition camera. The infrared sensor is used to detect the occlusion state of an object, the laser rangefinder is used to measure the lifting height of the mounting bracket 9 in real time, and the visual recognition camera is used to identify the positional deviation of the target object.

[0045] In this embodiment, the sensor assembly 12 is compatible with infrared sensors, laser rangefinders, and vision recognition cameras. The infrared sensors detect the stacking and occlusion status of PET sheets, the laser rangefinders monitor the lifting height in real time, and the vision camera identifies workpiece position deviations. Multimodal sensing adapts to different industrial scenarios (such as logistics sorting and precision machining). By flexibly configuring sensor types and combinations, the system's functional boundaries are expanded, and environmental adaptability and task generalization capabilities are improved.

[0046] The working principle and usage process of this utility model are as follows: An external driving device, such as a cylinder or servo motor, acts on the third worm gear 7 on the first lead screw 3, driving the first lead screw 3 to rotate. The first worm gear 5 at the bottom of the first lead screw 3 meshes with the worm 2. The worm 2 synchronously drives the second worm gear 6, causing the second lead screw 4 to rotate in the opposite direction to the first lead screw 3 at the same speed. The meshing design of the worm 2 with the double first worm gears 5 and the second worm gear 6 ensures that the first lead screw 3 and the second lead screw 4 rotate synchronously, avoiding lifting and offset. The rotation of the second lead screw 4 drives the threaded seat 8 to move along the axis of the second lead screw 4. The mounting bracket 9 is fixed on both sides of the threaded seat 8. The mounting bracket 9 is forced to move only vertically by the limiting groove 11 of the protective cover 10, eliminating horizontal degrees of freedom. The matching design of the limiting groove 11 and the mounting bracket 9 ensures accurate movement trajectory. The sensor component 12 detects the target height in real time, such as a laser rangefinder, the object occlusion status, such as an infrared sensor, or the position deviation, such as a visual recognition camera. The sensor component 12 transmits the signal to the external control system. The system compares the actual value with the set value, calculates the lifting adjustment amount, and the control system feeds back the drive signal to the external drive device to dynamically adjust the rotation angle of the first lead screw 3 until the mounting bracket 9 reaches the target position.

[0047] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0048] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A high-precision automatic lifting adjustment induction structure, characterized in that: Include: Base (1), the base (1) is hollow inside in cuboid structure, the inside of the base (1) is provided with parallel worm (2) along the length direction; First lead screw (3) and second lead screw (4), the first lead screw (3) and the second lead screw (4) are respectively connected to the upper end face left side and the right side of base (1) through bearing rotation, the bottom end of first lead screw (3) and second lead screw (4) extends to the inside of base (1), and is fixedly connected with first worm wheel (5) and second worm wheel (6), first worm wheel (5) and second worm wheel (6) are all engaged with worm (2), the outer wall of first lead screw (3) is connected with third worm wheel (7); Threaded seat (8), the threaded seat (8) is connected to the outer wall of second lead screw (4), both sides of threaded seat (8) are fixedly provided with mounting bracket (9); Protective cover (10), the protective cover (10) is fixed to the upper end face right side of base (1) and is located on the outside of second lead screw (4); Sensor assembly (12).

2. The high-precision automatic lifting and adjusting induction structure according to claim 1, characterized in that: The front and back sides of the protective cover (10) are provided with vertical limiting grooves (11), two mounting brackets (9) extend to the outside of protective cover (10) through two limiting grooves (11) respectively.

3. The high-precision automatic lifting adjustment induction structure according to claim 1, characterized in that: The sensor assembly (12) is installed at one end of mounting bracket (9) extending to the outside of protective cover (10), for detecting target height, object blocking state or position deviation.

4. The high-precision automatic lifting adjustment induction structure according to claim 1, characterized in that: The sensor assembly (12) is electrically connected with external control system, and the external control system is used for receiving real-time feedback signal of sensor assembly (12).

5. The high-precision automatic lifting adjustment induction structure according to claim 1, characterized in that: The meshing surface of first worm wheel (5) and second worm wheel (6) and worm (2) adopts reverse self-locking design.

6. The high-precision automatic lifting adjustment induction structure according to claim 1, characterized in that: The first lead screw (3) and the second lead screw (4) are gapless ball screws, and pre-tightening balls are arranged in the thread pair of the first lead screw (3) and the second lead screw (4).

7. The high-precision automatic lifting adjustment induction structure according to claim 1, characterized in that: The sensor assembly (12) includes at least one of infrared sensor, laser range finder or visual recognition camera, the infrared sensor is used for detecting object blocking state, the laser range finder is used for measuring the lifting height of mounting bracket (9) in real time, and the visual recognition camera is used for identifying the position deviation of target object.

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