A lifting docking station

Abstract

The utility model discloses a kind of lifting connection tables, including two oppositely arranged vertical wall components and horizontal transmission components;The vertical wall component includes the rack fixed to ground, the lifting structure installed in the rack and two guide limiting structures;The horizontal transmission component includes lifting table and the synchronous belt in the lifting table, tray is located on the synchronous belt;The top of the rack and the position corresponding to the end of the synchronous belt are equipped with opposite emission switch.This utility model realizes accurate positioning and high-precision lifting in vertical direction by the lifting structure and guide limiting structure of vertical wall component, realizes accurate transmission in horizontal direction by the synchronous belt of horizontal transmission component, and combines with opposite emission switch to carry out in-place detection, so that tray is sent into connection table from carrying tool, to be finally lifted to robot grabbing position, whole process does not need manual intervention, and can guarantee the final position accuracy of tray in three-dimensional space.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation technology, and in particular to a lifting docking platform. Background Technology

[0002] In the industrial manufacturing sector, with the deepening of intelligent manufacturing and flexible manufacturing concepts, automated production lines and processing units have been rapidly popularized. Automated flexible manufacturing systems can efficiently handle multi-variety, small-batch production tasks, but their efficient operation heavily relies on the seamless integration of the logistics system. Among these, the precise transfer of material pallets from transport vehicles (such as manual trolleys or automated guided vehicles, AGVs) to the robotic gripping station is a key link in achieving "lights-out factories" and fully automated production. Currently, the most common method for transporting materials within the workshop is through manual trolleys or AGVs. However, the following technical challenges exist when delivering materials to the processing unit: First, the positioning accuracy of both manual trolleys and AGVs is often insufficient to directly meet the high precision requirements for robotic pallet gripping, easily leading to robot gripping failures or collisions. Second, to address this insufficient precision, traditional methods often require secondary manual handling or auxiliary positioning, which not only significantly increases the labor intensity of workers but also introduces uncertain human factors, becoming a bottleneck in improving the overall automation level and hindering further improvements in production efficiency. Existing technologies also include some simple lifting platforms or conveyor belt devices, but their functions are relatively limited. For example, some devices only have lifting capabilities and cannot achieve precise horizontal positioning; others lack vertical adjustment capabilities and cannot adapt to robots or processing equipment of different heights. These devices are difficult to use as an intelligent "interface" to achieve automated, high-precision pallet transfer between transport vehicles and processing units. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a lifting docking platform.

[0004] This application provides a lifting docking platform, including two opposing wall assemblies and a horizontal transmission assembly slidably connected to each of the wall assemblies; the wall assemblies include a frame fixed to the ground, a lifting structure installed in the middle of the frame, and two guide limiting structures respectively provided on both sides of the lifting structure; the horizontal transmission assembly includes a lifting platform installed on the lifting structure and the guide limiting structures, and a synchronous belt provided on the lifting platform, with a tray provided on the synchronous belt; a photoelectric switch is installed on the top of the frame at a position corresponding to the end of the synchronous belt.

[0005] Furthermore, the lifting structure includes a motor mounted on the frame via a motor mounting bracket, a lead screw connected to the output shaft of the motor, and a lead screw nut screwed to the lead screw. The end of the lead screw facing away from the motor is rotatably connected to the frame, and the lifting platform is connected to the lead screw nut.

[0006] Furthermore, the guide limiting structure includes an optical axis guide rail mounted on the frame and a guide block slidably connected to the optical axis guide rail, the guide block being connected to the lifting platform.

[0007] Furthermore, a side baffle is provided on the lifting platform and on one side of the synchronous belt, the side baffle being located on the side of the synchronous belt near the wall assembly.

[0008] Furthermore, both ends of the side guard strip are provided with guide slopes.

[0009] Furthermore, the synchronous belt drive motor, the motor, and the through-beam switch are all electrically connected to the controller.

[0010] Compared with existing technologies, this utility model achieves precise vertical positioning and high-precision lifting through the lifting and guiding limit structure of the wall assembly, and achieves precise horizontal transmission through the synchronous belt of the horizontal transmission assembly. Combined with the through-beam switch for position detection, the entire process from when the pallet is sent into the docking platform by the transport vehicle to when it is finally lifted to the robot's gripping position requires no manual intervention and can guarantee the final positional accuracy of the pallet in three-dimensional space, meeting the requirements of robot gripping and fundamentally eliminating the pain points of manual secondary handling and insufficient positioning accuracy. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0012] Figure 1 This is a structural schematic diagram of the lifting docking platform of this utility model; Figure 2 This is a diagram of the wall assembly of the lifting docking platform of this utility model; Figure 3 This is a partial structural schematic diagram of the lifting docking platform of this utility model.

[0013] The reference numerals in the attached figures include: 1. Wall support assembly; 101. Motor mounting bracket; 102. Motor; 103. Lead screw; 104. Lead screw nut; 105. Optical axis guide rail; 106. Guide block; 107. Frame; 2. Horizontal transmission assembly; 201. Lifting platform; 202. Synchronous belt; 203. Side stop bar; 204. Guide ramp; 3. Photoelectric switch; 4. Foot. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0015] like Figures 1-3 As shown, the lifting docking platform of this utility model includes two opposing wall assemblies 1 and a horizontal transmission assembly 2 slidably connected to each of the wall assemblies 1. The wall assembly 1 includes a frame 107 fixed to the ground (mounted to the ground via foot 4), a lifting structure installed in the middle of the frame 107, and two guide limiting structures respectively provided on both sides of the lifting structure. The horizontal transmission assembly 2 includes a lifting platform 201 installed on the lifting structure and the guide limiting structures, and a synchronous belt 202 provided on the lifting platform 201, with a tray provided on the synchronous belt 202. A photoelectric switch 3 is installed on the top of the frame 107 at a position corresponding to the end of the synchronous belt 202.

[0016] This invention achieves precise vertical positioning and high-precision lifting through the lifting and guiding limit structure of the wall assembly 1, and precise horizontal transmission through the synchronous belt 202 of the horizontal transmission assembly 2. Combined with the through-beam switch for position detection, the entire process from when the pallet is sent into the docking platform by the transport vehicle to when it is finally lifted to the robot's gripping position requires no manual intervention and can guarantee the final positional accuracy of the pallet in three-dimensional space, meeting the requirements of robot gripping and fundamentally eliminating the pain points of manual secondary handling and insufficient positioning accuracy.

[0017] In this embodiment, two opposing wall components 1 are used as the main support structure to form a stable frame; the lifting structure (preferably screw 103) is located in the middle, and two guide limiting structures (preferably smooth rod guide rails) are provided on both sides. This integrated two-wing layout makes the lifting platform 201 subjected to balanced force during the lifting process, effectively preventing uneven load, jamming and shaking, ensuring high stability and high reliability of the entire connection process, and extending the service life of the equipment.

[0018] Furthermore, this docking station, as a standardized interface unit, is compatible with both low-precision manual trolleys and high-precision AGVs. The trolley or AGV only needs to roughly place the pallet into the docking station area; subsequent precise positioning and lifting are automatically completed by the station. This reduces reliance on the performance of the front-end transport vehicles, allowing companies to flexibly choose logistics solutions based on cost-effectiveness, greatly improving the flexibility of the entire production system.

[0019] Specifically, the synchronous belt 202 adopts the commonly used transmission belt structure, which includes a driving pulley and a driven pulley connected in the lifting platform 201, and a synchronous belt 202 connecting the two pulleys. The driving pulley is driven by the motor 102. This structure is existing technology and will not be described in detail in this article.

[0020] In some embodiments, such as Figures 1-3 As shown, the lifting structure includes a motor 102 mounted on the frame 107 via a motor mounting bracket 101, a lead screw 103 connected to the output shaft of the motor 102, and a lead screw nut 104 screwed to the lead screw 103. One end of the lead screw 103 facing away from the motor 102 is rotatably connected to the frame 107 (the lead screw 103 is connected to the frame 107 via a bearing). The lifting platform 201 is connected to the lead screw nut 104. The guide and limiting structure includes an optical axis guide rail 105 mounted on the frame 107 and a slidingly connected... The guide block 106 of the optical axis guide rail 105 (the connection method between the guide block 106 and the optical axis guide rail 105 refers to the structure of the linear guide rail in the prior art) is connected to the lifting platform 201; a side baffle 203 is provided on the lifting platform 201 and on one side of the synchronous belt 202, and the side baffle 203 is located on the side of the synchronous belt 202 close to the wall assembly 1; both ends of the side baffle 203 are provided with guide slopes 204; the drive motor of the synchronous belt 202, the motor 102 and the through-beam switch 3 are all electrically connected to the controller.

[0021] In this embodiment, the lead screw nut 104 is used as the core lifting component to convert the rotational motion of the motor 102 into precise linear motion. The lead screw 103 transmission has extremely high transmission accuracy and is easy to achieve precise displacement control. In addition, the inherent self-locking characteristic of the lead screw 103 mechanism can effectively prevent the lifting platform 201 from sliding down due to the weight of the tray when the power is off or the device is stopped, thus ensuring the safety and position holding capability of the equipment.

[0022] The optical axis guide rail 105 and guide block 106 are used as the guiding and limiting structure and are rigidly connected to the lifting platform 201. This design strictly restricts the vertical movement of the lifting platform 201, which can only make smooth linear movements along the optical axis guide rail 105. This effectively counteracts the lateral forces and torques that may be generated by uneven pallet placement or the transmission itself, greatly improving the stability and accuracy of the lifting process and avoiding jamming and wear.

[0023] Side baffles 203 are installed on the lifting platform 201 and positioned on the side of the synchronous belt 202 near the wall assembly 1. The side baffles 203 serve as a rigid mechanical reference surface, which can forcibly limit and correct the pallet in the horizontal plane, ensuring that the pallet always maintains a precise relative position with the main structure of the connecting platform during transmission and lifting. The guide slopes 204 at both ends of the side baffles 203 can effectively guide the pallet to enter the correction area smoothly and without impact, achieving soft positioning.

[0024] Specifically, the motor 102 of the lead screw 103 is selected from the Panasonic Minas A6 series, such as MSMF082L1U2M; the drive motor of the synchronous belt 202 is selected from the geared stepper motor, such as Mingzhi 17HS19-2004S1; the controller is a programmable logic controller (PLC), selected from the Siemens S7-1200 series, such as CPU1214C DC; among them, the DI0.0 pin of the controller is connected to the normally open signal line of the through-beam switch, and the DO0.0 and DO0.1 pins are connected to the pulse direction signal and direction signal of the driver of the synchronous belt 202 drive motor, respectively; the DO0.2 pin and the PLCopen communication port (PN) are connected to the enable signal of the driver of the lead screw motor 102 and the PROFINET interface, respectively.

[0025] Working principle: In standby mode, the lifting platform 201 is in the initial position after descent (unloading position) under the control of the controller, and the synchronous belt 202 stops running; When the pallet is fed in and inspected, a manual trolley or AGV trolley pushes the pallet toward the receiving platform: the pallet first contacts the guide ramp 204 at the entrance end of the side baffle 203, is smoothly guided to the correct position, and completes lateral correction under the limit of the side baffle 203; when the front end of the pallet enters and blocks the beam of the beam of the through-beam switch installed on the top of the frame 107, the through-beam switch generates a "pallet in place" signal and sends it to the controller; During horizontal transport, after receiving the signal from the through-beam switch, the controller immediately starts the drive motor of the synchronous belt 202: the synchronous belt 202 rotates, and works in conjunction with the thrust of the trolley / AGV to completely send the pallet into the center area of ​​the docking platform; when the pallet has completely passed through and the beam of the through-beam switch is restored, the controller delays for a short time (or judges by other sensors) that the pallet has reached the preset center position, and then stops the synchronous belt motor, and the precise positioning of the pallet in the horizontal direction is completed; After horizontal positioning is completed, the controller starts motor 102. Motor 102 rotates forward to drive lead screw 103 to rotate, which drives the lifting platform 201, which is fixed to lead screw nut 104, to rise smoothly along optical axis guide rail 105, and vertically lift the tray to the robot's preset grasping height. The robot performs loading and unloading operations on the pallets that have been lifted into position. After the robot finishes its work, the controller controls the lifting motor 102 to reverse, driving the lifting platform 201 to descend to the initial position. At this time, a manual trolley or AGV can enter to take away the empty pallet, or the synchronous belt 202 can run in reverse to send the empty pallet out, completing a complete work cycle.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lift docking station, characterized in that, It includes two opposing wall assemblies (1) and a horizontal transmission assembly (2) slidably connected to each of the wall assemblies (1); the wall assembly (1) includes a frame (107) fixed to the ground, a lifting structure installed in the middle of the frame (107) and two guide limiting structures respectively provided on both sides of the lifting structure; the horizontal transmission assembly (2) includes a lifting platform (201) installed on the lifting structure and the guide limiting structure and a synchronous belt (202) provided on the lifting platform (201), and a tray is provided on the synchronous belt (202); a photoelectric switch (3) is installed at the top of the frame (107) and at a position corresponding to the end of the synchronous belt (202).

2. The lift docking station of claim 1, wherein, The lifting structure includes a motor (102) mounted on the frame via a motor mounting bracket (101), a lead screw (103) connected to the output shaft of the motor (102), and a lead screw nut (104) screwed to the lead screw (103). The end of the lead screw (103) facing away from the motor (102) is rotatably connected to the frame (107), and the lifting platform (201) is connected to the lead screw nut (104).

3. The lifting docking platform as described in claim 2, characterized in that, The guide limiting structure includes an optical axis guide rail (105) mounted on the frame (107) and a guide block (106) slidably connected to the optical axis guide rail (105), and the guide block (106) is connected to the lifting platform (201).

4. The lifting docking platform as described in claim 3, characterized in that, A side baffle (203) is provided on the lifting platform (201) and on one side of the synchronous belt (202), and the side baffle (203) is located on the side of the synchronous belt (202) close to the wall assembly (1).

5. The lift docking station of claim 4, wherein, Both ends of the side guard strip (203) are provided with guide slopes (204).

6. The lift docking station of claim 5, wherein, The drive motor (102) of the synchronous belt (202), the motor (102) and the through-beam switch (3) are all electrically connected to the controller.

Images