Compatible tray automatic positioning mechanism design

By coordinating the design of laser rangefinders and modules, precise positioning of battery trays in lithium battery production was achieved, solving the positioning error problem caused by inaccurate visual recognition, improving production stability and efficiency, and avoiding equipment collisions and material damage.

CN121757565APending Publication Date: 2026-03-31NANJING CBAK NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-08
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The environment in lithium battery production workshops is complex, and vision cameras are easily affected by changes in light and dust pollution, which can lead to inaccurate grasping of material edges, resulting in positioning errors, irregular positions of incoming battery trays, affecting detection accuracy and process stability, and even causing risks such as equipment collisions and material damage.

Method used

A laser rangefinder is used to detect the width and position of the battery tray in real time. Combined with the module's adaptive positioning adjustment, the module is pre-positioned and the battery tray position is precisely calibrated through rubber-coated wheels and limit rollers to eliminate lateral deviations and ensure that the battery tray moves in a straight line along the fixed roller frame.

Benefits of technology

It enables precise positioning of battery trays of different widths, improves production flexibility and cycle time, ensures equipment efficiency and material posture accuracy, avoids positioning waiting time and unnecessary movements, and reduces production risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of lithium battery production, and discloses a compatible tray automatic positioning mechanism design which comprises a conveying mechanism, and the conveying mechanism comprises two electric rotating shafts, side supporting bearings, supporting columns, supporting legs, a flange frame, a connecting plate, a fixed roller frame, limiting rollers, a tray, a laser range finder and a conveying belt. And the outer sides of the two electric rotating shafts jointly support the conveying belt, side supporting bearings are arranged at the two ends of the two electric rotating shafts correspondingly, and an edge blocking frame is welded and fixed to one side of each side supporting bearing. In the invention, the width and position data of the tray are detected in real time through the two oppositely arranged laser range finders, and the matching module adaptively adjusts the design of the positioning position according to the detection data, so that the tray with different width specifications can be adapted, the positioning assembly does not need to be manually and repeatedly adjusted, and the flexible adaptation capability of the mechanism is greatly improved; and the requirements of diversified material circulation scenes are met.
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Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology, and in particular to a design of an automatic positioning mechanism compatible with pallets. Background Technology

[0002] In the process of large-scale lithium battery production, the whole battery tray serves as the core carrier of material flow. The regularity of its incoming material position directly affects the accuracy and stability of subsequent processes such as testing, assembly, and sorting. Currently, the mainstream solution for the positioning of whole battery trays in the industry mostly relies on vision cameras to capture the material edges for position recognition and positioning.

[0003] The existing technology has significant drawbacks: due to the complex environment of lithium battery production workshops, vision cameras are easily affected by factors such as changes in light and dust pollution, resulting in inaccurate grasping of material edges and positioning errors. At the same time, the incoming battery materials often have irregular positions or are not close to the edge due to conveying vibration and manual placement deviations. It is difficult to eliminate these positional deviations from the physical level by relying solely on visual recognition, which in turn leads to a decrease in the accuracy of subsequent software recognition, affecting the accuracy of detection results and the stability of subsequent processes, and may even cause production risks such as equipment collisions and material damage. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a compatible automatic pallet positioning mechanism design to address the issues arising from the complex environment of lithium battery production workshops, where visual cameras are susceptible to factors such as changes in light and dust contamination, leading to inaccurate edge grasping of materials and positioning errors. Furthermore, incoming pallets of batteries often exhibit irregular or misaligned positions due to conveyor vibrations and manual placement deviations. Relying solely on visual recognition is insufficient to physically eliminate these positional deviations, resulting in reduced accuracy of subsequent software recognition, affecting the accuracy of detection results and the stability of subsequent processes, and potentially even causing production risks such as equipment collisions and material damage.

[0005] To address the aforementioned problems, the present invention is implemented through the following technical solution.

[0006] A compatible automatic pallet positioning mechanism design includes: a conveying mechanism comprising an electric rotating shaft, side support bearings, support columns, support feet, side guards, an inner connecting cross plate, a fixed roller frame, limit rollers, battery trays, a laser rangefinder, and a conveyor belt. Two electric rotating shafts are provided, and the outer sides of the two shafts jointly support the conveyor belt. Side support bearings are provided at both ends of the two shafts. A side guard is welded and fixed to one side of each side support bearing. A support column is welded and fixed to the bottom of the side guard. A fixed roller frame is provided between the two side guards on the same side, and multiple limit rollers are equidistantly arranged laterally at the bottom of the fixed roller frame. At least two battery trays are placed along the side of the limit rollers on the upper end of the conveyor belt. A laser rangefinder is provided on the upper end of the fixed roller frame corresponding to the side where the battery trays are placed.

[0007] The blocking module mechanism includes a base plate, a module bracket, a module crossbeam, a module, a connecting plate, a roller connecting plate, and rubber-coated wheels. Two module brackets are provided, and a module bracket is provided between the two module brackets. A connecting plate is provided on one side of the bottom of the module crossbeam. A module is provided on the outer side of the bottom of the module crossbeam, and the module passes through and extends beyond the module bracket. A roller connecting plate is provided at the bottom of the connecting plate, and multiple rubber-coated wheels are provided at equal intervals laterally at the bottom of the roller connecting plate.

[0008] In one embodiment, four side support bearings, four side guards, and four support columns are provided, and each support column is welded and fixed to a support foot at its bottom.

[0009] In one embodiment, an inner connecting plate is welded and fixed together among the four side guards. The inner connecting plate is disposed on the inner side of the conveyor belt, and the inner side of the conveyor belt does not contact the outer side of the inner connecting plate.

[0010] In one embodiment, the bottom height of the limiting roller matches the top height of the conveyor belt, and the fixed roller frame is fixed by screws and an inner connecting plate.

[0011] In one embodiment, two laser rangefinders are provided, with the other laser rangefinder located on the upper end of the fixed roller frame opposite to the fixed roller frame, and the laser emitting ends of the two laser rangefinders facing each other.

[0012] In one embodiment, the conveyor belt is used for directional transport of battery trays.

[0013] In one embodiment, a base plate is welded and fixed to the bottom of the module support, and the base plate and the support feet are used to stably mount the conveying mechanism and the blocking module mechanism on the same plane.

[0014] In one embodiment, two module supports are disposed on both sides of the conveyor belt, and a module crossbeam between the two module supports is disposed at the upper end of the conveyor belt and perpendicular to the conveyor belt conveying line.

[0015] In one embodiment, the roller connecting plate is parallel to the fixed roller frame, and the starting position of the roller connecting plate is on the side of the upper end of the conveyor belt away from the fixed roller frame.

[0016] In one embodiment, one side of the module is connected to one side of the connecting plate, and the inner shape of the module matches the bottom outer shape of the module beam.

[0017] This invention provides a design for a compatible automatic pallet positioning mechanism. Compared with existing technologies, it has the following advantages: The width and position data of the battery tray are detected in real time by two laser rangefinders set opposite each other. The module adaptively adjusts the positioning position according to the detection data, which can adapt to battery trays of different widths. There is no need for manual repeated adjustment of the positioning components, which greatly improves the flexibility and adaptability of the mechanism and meets the needs of diverse material flow scenarios. The pre-positioning logic, which involves the module moving at high speed to a pre-positioned position 30-50mm from the left edge of the forward side of the battery tray, avoids the waiting time required for the positioning mechanism to drive the positioning after the battery tray has reached its position. At the same time, after completing a positioning action, the module does not need to return to the origin and can move directly to a new pre-positioned position based on the detection data of the next battery tray. This reduces unnecessary actions of the module, ensuring the original conveying efficiency of the equipment while achieving accurate positioning and effectively improving the production cycle.

[0018] By driving the rubber-coated wheels of the module closer to the fixed roller frame, the battery tray is confined between the rubber-coated wheels and the limiting rollers at the bottom of the fixed roller frame. Combined with the set torque control that matches the width of the module and the battery tray, the position of the battery tray can be accurately calibrated, effectively eliminating lateral deviations during the battery tray transportation process. This ensures that the battery tray moves in a straight line along the unified reference edge formed by the fixed roller frame, providing accurate material posture assurance for subsequent sorting, palletizing and other processes. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure for compatibility with automatic pallet positioning mechanisms.

[0020] Figure 2 A schematic diagram of the conveyor mechanism for compatibility with automatic pallet positioning.

[0021] Figure 3 A schematic diagram of the blocking module structure for compatibility with automatic pallet positioning mechanism.

[0022] Figure 4 For compatibility with automatic pallet positioning mechanisms Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 5A schematic diagram of the fixed roller frame and limit roller structure for compatibility with automatic pallet positioning mechanism.

[0024] Figure 6 A schematic diagram of the electric rotating shaft, side support bearings, and conveyor belt structure for compatibility with the automatic pallet positioning mechanism.

[0025] Figure 7 For compatibility with automatic pallet positioning mechanisms Figure 6 Enlarged structural diagram at point B.

[0026] The attached figures are labeled as follows: 1. Conveying mechanism; 101. Electric rotating shaft; 102. Side support bearing; 103. Support column; 104. Support foot; 105. Side guard; 106. Inner connecting cross plate; 107. Fixed roller frame; 108. Limiting roller; 109. Battery tray; 110. Laser rangefinder; 111. Conveyor belt; 2. Blocking module mechanism; 201. Base plate; 202. Module bracket; 203. Module crossbeam; 204. Module; 205. Connecting plate; 206. Roller connecting plate; 207. Rubber-coated wheel. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0028] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0029] Reference Figures 1-7A compatible automatic pallet positioning mechanism design includes: a conveying mechanism 1, which includes an electric rotating shaft 101, a side support bearing 102, a support column 103, a support foot 104, a side guard 105, an inner connecting cross plate 106, a fixed roller frame 107, a limiting roller 108, a battery tray 109, a laser rangefinder 110, and a conveyor belt 111. Two electric rotating shafts 101 are provided, and the outer sides of the two electric rotating shafts 101 jointly support the conveyor belt 111. Both ends of the two electric rotating shafts 101... A side support bearing 102 is provided, and a side guard 105 is welded and fixed to one side of the side support bearing 102. A support column 103 is welded and fixed to the bottom of the side guard 105. A fixed roller frame 107 is provided between two side guards 105 on the same side, and multiple limiting rollers 108 are provided at equal intervals in the horizontal direction at the bottom of the fixed roller frame 107. At least two battery trays 109 are placed along the side of the limiting rollers 108 at the upper end of the conveyor belt 111. A laser rangefinder 110 is provided on the upper end of the fixed roller frame 107 corresponding to the side where the battery trays 109 are placed.

[0030] The blocking module mechanism 2 includes a base plate 201, a module bracket 202, a module crossbeam 203, a module 204, a connecting plate 205, a roller connecting plate 206, and rubber-coated wheels 207. There are two module brackets 202, and a module bracket 202 is provided between the two module brackets 202. A connecting plate 205 is provided on one side of the bottom of the module crossbeam 203. A module 204 is provided on the outer side of the bottom of the module crossbeam 203, and the module 204 passes through and extends to the outside of the module bracket 202. A roller connecting plate 206 is provided at the bottom of the connecting plate 205, and multiple rubber-coated wheels 207 are provided at equal intervals laterally at the bottom of the roller connecting plate 206.

[0031] There are four side support bearings 102, side brackets 105 and support columns 103, and each support column 103 has a support foot 104 welded and fixed to its bottom.

[0032] An inner connecting plate 106 is welded and fixed between the four side guards 105. The inner connecting plate 106 is located inside the conveyor belt 111, and the inner side of the conveyor belt 111 does not contact the outer side of the inner connecting plate 106.

[0033] The bottom height of the limiting roller 108 matches the top height of the conveyor belt 111, and the fixed roller frame 107 forms a fixed structure with the inner connecting cross plate 106 by screws.

[0034] Two laser rangefinders 110 are provided. The other laser rangefinder 110 is located on the upper end of the fixed roller frame 107 on the opposite side of the fixed roller frame 107, and the laser emitting ends of the two laser rangefinders 110 are opposite each other.

[0035] Conveyor belt 111 is used for directional transport of battery tray 109.

[0036] A base plate 201 is welded and fixed to the bottom of the module bracket 202. The base plate 201 and the support foot 104 are used to stably place the conveying mechanism 1 and the blocking module mechanism 2 on the same plane.

[0037] Two module supports 202 are located on both sides of the conveyor belt 111, and the module crossbeam 203 between the two module supports 202 is located at the upper end of the conveyor belt 111 and is perpendicular to the conveying line of the conveyor belt 111.

[0038] The roller connecting plate 206 is parallel to the fixed roller frame 107, and the starting position of the roller connecting plate 206 is on the side of the upper end of the conveyor belt 111 away from the fixed roller frame 107.

[0039] One side of module 204 is connected to one side of connecting plate 205, and the inner shape of module 204 matches the bottom outer shape of module crossbeam 203.

[0040] During use, the side support bearing 102 connects the electric rotating shaft 101 and the side guard 105, providing support for the rotation of the electric rotating shaft 101 and reducing the frictional resistance when the electric rotating shaft 101 rotates. The support column 103 connects the side guard 105 and the support foot 104, providing vertical support for the conveying mechanism 1 and determining the installation height of the conveyor belt 111. The support foot 104 is installed at the bottom of the support column 103 and is coplanar with the base plate 201 of the blocking module mechanism 2, realizing the ground fixation and horizontal adjustment of the conveying mechanism 1. The inner connecting horizontal plate 106 connects the four side guards 105 and provides an installation interface for the fixed roller frame 107, while enhancing the overall structural strength of the conveying mechanism 1. The module bracket 202 connects the base plate 201 and the module crossbeam. 203 provides vertical support for the module crossbeam 203, determining the installation height of the module 204. The module crossbeam 203 provides an installation carrier for the module 204 and simultaneously determines the lateral running track of the module 204, restricting the movement direction of the module 204. The connecting plate 205 connects the drive end of the module 204 to the roller connecting plate 206, transmitting the driving force of the module 204. The roller connecting plate 206 provides an installation carrier for the rubber-coated wheels 207, integrating multiple rubber-coated wheels 207 into the same component, ensuring the lateral alignment consistency of the rubber-coated wheels 207. The conveying mechanism 1 and the blocking module mechanism 2 operate in linkage, enabling automatic positioning of the battery tray 109. Specifically, the battery tray 109 enters the conveyor belt 11 from the inlet. 1. The electric rotating shaft 101 drives the conveyor belt 111 to rotate, moving the battery tray 109 forward. When the battery tray 109 passes the two laser rangefinders 110, the laser rangefinders 110 simultaneously detect the width of the battery tray 109 and the distance between it and the module 204. After calculating the distance, the module 204 immediately moves at high speed to a preparatory position 30-50mm from the left edge of the forward side of the battery tray 109 for preparatory alignment. This action aims to increase the cycle time to meet production requirements. Subsequently, the conveyor belt 111 rotates to transport the battery tray 109 within the operating range of the module 204. The module 204 then moves towards the fixed roller frame 107 to calibrate the position of the battery tray 109. When the set torque is reached... When module 204 stops operating, battery tray 109 moves in a straight line between module 204 and the bottom limiting roller 108 of fixed roller frame 107 to correct its position. Laser rangefinder 110 measures the width of battery tray 109 and can bind the data to battery tray 109 information. This also prevents module 204 from excessively squeezing battery tray 109. Width and torque are used to ensure the stability of the mechanism. Battery tray 109 is restricted between rubber-coated wheel 207 and the bottom limiting roller 108 of fixed roller frame 107 and moves in a straight line along the reference edge with conveyor belt 111. Module 204 does not return to the origin. After the next battery tray 109 enters the detection area, it moves directly to the new preparation position to reduce unnecessary movements.

[0041] Therefore, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the foregoing disclosure, and it should be understood that in some cases, certain features of the invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the following claims and / or the specific embodiments disclosed as the best mode for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the invention will be defined only by the appended claims.

Claims

1. A compatible tray auto positioning mechanism design, characterized in that, The utility model relates to a kind of battery conveying device, including: Conveying mechanism (1), the conveying mechanism (1) includes motorized shaft (101), side support bearing (102), support column (103), support foot (104), baffle frame (105), inner connecting cross plate (106), fixed roller frame (107), limiting roller (108), battery tray (109), laser range finder (110) and conveying belt (111), the motorized shaft (101) is provided with two, and two motorized shaft (101) outside jointly props up conveying belt (111), the both ends of two the motorized shaft (101) are equipped with side support bearing (102), the side support bearing (102) one side is fixed with baffle frame (105) welding, the baffle frame (105) bottom is fixed with support column (103) welding, between two same side baffle frame (105) is equipped with fixed roller frame (107), and fixed roller frame (107) bottom is equipped with multiple limiting roller (108) laterally equidistantly, the conveying belt (111) upper end is arranged with not less than two battery tray (109) along limiting roller (108) side, the fixed roller frame (107) upper end is equipped with laser range finder (110) corresponding battery tray (109) side of being put into; Blocking module mechanism (2), the blocking module mechanism (2) includes bottom plate (201), module support (202), module crossbeam (203), module (204), connecting plate (205), roller connecting plate (206) and rubber wheel (207), the module support (202) is equipped with two, and module support (202) is equipped between two module supports (202), the module crossbeam (203) bottom one side is equipped with connecting plate (205), the module crossbeam (203) bottom outside is equipped with module (204), and module (204) penetrates and extends to module support (202) outside, the connecting plate (205) bottom is equipped with roller connecting plate (206), the roller connecting plate (206) bottom is equipped with multiple rubber wheels (207) laterally equidistantly.

2. A design for an automatic tray positioning mechanism that is compatible, according to claim 1, characterized by, The side support bearing (102), baffle frame (105) and support column (103) are all equipped with four, and each support column (103) bottom is fixed with support foot (104) welding.

3. A design for an automatic tray positioning mechanism that is compatible, according to claim 1, characterized by, Four the baffle frame (105) is collectively fixed with inner connecting cross plate (106) welding between, the inner connecting cross plate (106) is arranged in conveying belt (111) inside, and conveying belt (111) inside and inner connecting cross plate (106) outside do not contact.

4. A design for a tray auto positioning mechanism that is compatible, according to claim 1, wherein, The bottom height of the limiting roller (108) is consistent with the top height of the conveying belt (111), and the fixed roller frame (107) forms a fixed structure with the inner connecting cross plate (106) by screws.

5. A design for a tray auto positioning mechanism that is compatible, according to claim 1, wherein, The laser range finder (110) is provided with two, another laser range finder (110) is arranged on the upper end of the fixed roller frame (107) opposite the fixed roller frame (107), and the laser emission ends of the two laser range finders (110) are opposite.

6. A design for a tray auto positioning mechanism that is compatible, according to claim 1, wherein, The conveying belt (111) is used for directional conveying battery tray (109).

7. A design for an automatic tray positioning mechanism that is compatible, according to claim 6, wherein, The bottom of the module support (202) is welded with a bottom plate (201), and the bottom plate (201) and the supporting leg (104) are used for stably arranging the conveying mechanism (1) and the blocking module mechanism (2) on the same plane.

8. A design for a tray auto positioning mechanism that is compatible, according to claim 1, wherein, Two module supports (202) are arranged on both sides of the conveying belt (111), and a module cross beam (203) between the two module supports (202) is arranged on the upper end of the conveying belt (111) and is perpendicular to the conveying line of the conveying belt (111).

9. A design for a tray auto positioning mechanism that is compatible with, according to claim 1, The roller connecting plate (206) is parallel to the fixed roller frame (107), and the starting position of the roller connecting plate (206) is on the side, away from the fixed roller frame (107), of the upper end of the conveying belt (111).

10. A design for a tray auto positioning mechanism that is compatible, according to claim 1, wherein, One side of the module (204) is connected with one side of the connecting plate (205), and the inner side shape structure of the module (204) is consistent with the bottom outer side shape structure of the module cross beam (203).