Automatic part marking position adjusting device

By designing an automatic adjustment device, utilizing lateral and longitudinal displacement mechanisms, vacuum adsorption, and high-precision image recognition technology, the problem of part marking position deviation was solved, achieving accurate marking and automated operation, improving production efficiency and quality, and reducing production losses.

CN121290955APending Publication Date: 2026-01-09JIANGSU HENGJIN AUTOMOBILE PARTS CO LTD
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Patent Information

Application Number
CN202511667210.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

In existing technologies, the marking position of parts relies on manual operation, which leads to problems such as positional deviation and unclear information, affecting production efficiency and quality, and making it difficult to meet the high efficiency and precision requirements of modern automobile production.

Method used

Design an automatic adjustment device that includes lateral and longitudinal displacement mechanisms, vacuum adsorption, a position recognition camera, and a signal sensor. Through high-precision image recognition and collaborative control, it can achieve precise adjustment and automated operation of the marking position on parts.

Benefits of technology

To ensure the accuracy of marking positions, reduce rework and scrap of parts, improve production efficiency, promote the automation of the marking process, save labor costs, optimize the placement foundation and adsorption stability of parts, and reduce the weight and maintenance costs of the equipment.

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Abstract

The invention discloses an automatic part marking position adjusting device, and relates to the technical field of automobile part manufacturing, and the automatic part marking position adjusting device is technically characterized by comprising a transverse displacement mechanism platform for bearing parts and transversely moving; the transverse displacement mechanism sliding rail provides sliding guidance for the platform; the transverse displacement mechanism motor drives the platform; the longitudinal displacement mechanism platform is used for bearing the parts and longitudinally moving; the discharging table directly bears parts, and the lower portion of the discharging table is connected with a discharging table rotating motor; the vacuum chuck is fixed on the surface of the discharging table to adsorb parts; the position identification camera scans the reference position of the part; the signal sensor is electrically connected with the camera; the discharging table rotating motor is directly connected with the discharging table; the vacuum pump is communicated with the vacuum chuck; the marking machine is electrically connected with the signal sensor; the signal sensor is further electrically connected with the transverse displacement mechanism motor, the longitudinal displacement mechanism motor, the discharging table rotating motor and the marking machine. The part marking position can be automatically adjusted, and it is ensured that the marking position is accurate.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to an automatic adjustment device for the marking position of parts. Background Technology

[0002] In the automotive industry, parts marking is a crucial step in the production process. The information included in the marking, such as part number, specifications, and production date, has a direct and critical impact on subsequent operations such as warehousing, shipping, and installation. Therefore, the accuracy of the marking location and the precision of the marking information are essential factors in ensuring the smooth operation of the entire production process and stable, controllable product quality. However, currently in frontline production, parts marking is mostly done manually. Production workers are prone to fatigue due to long working hours, or they may become distracted or lack experience, which can easily lead to serious problems such as out-of-tolerance marking deviations and illegible, unclear marking information. Once these problems occur, parts need to be reworked or even scrapped, resulting in unnecessary production losses for the company.

[0003] Given the numerous drawbacks of manual marking, developing a device that can effectively solve these problems is particularly urgent. In existing production models, manual marking is not only inefficient but also lacks quality assurance, failing to meet the high-efficiency and precision requirements of modern automobile production. Therefore, developing a device that can automatically adjust the marking position of parts is of significant practical importance. This device can precisely and automatically adjust the part's position, ensuring it is accurately positioned during marking. This effectively avoids marking position deviations caused by human error, reducing rework and scrap, thereby minimizing production losses and improving production efficiency. Summary of the Invention

[0004] In order to at least solve one of the above-mentioned technical problems, the present invention aims to provide an automatic adjustment device for the marking position of parts, which can realize the automatic adjustment of the marking position of parts, ensure the accuracy of the marking position, reduce marking losses, and at the same time promote the automation of the marking process, save labor costs, and improve production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic adjustment device for marking position on parts, comprising:

[0007] Lateral displacement mechanism platform, used to support parts and enable lateral movement;

[0008] The lateral displacement mechanism slide rail is slidably connected to the lateral displacement mechanism platform, providing sliding guidance for the lateral displacement mechanism platform;

[0009] A lateral displacement mechanism motor is driven and connected to the lateral displacement mechanism platform.

[0010] A longitudinal displacement mechanism platform is used to support parts and enable longitudinal movement;

[0011] The feeding platform directly supports the parts, and is connected to the feeding platform rotary motor below.

[0012] A vacuum suction cup is fixed to the surface of the feeding platform and is used to fix parts by vacuum adsorption.

[0013] A position recognition camera is used to scan the reference position of the part;

[0014] A signal sensor is electrically connected to the location recognition camera;

[0015] The material feeding table rotary motor is directly connected to the material feeding table;

[0016] A vacuum pump is connected to the vacuum suction cup via an air passage pipe;

[0017] The marking machine is electrically connected to the signal sensor;

[0018] The signal sensor is electrically connected to the lateral displacement mechanism motor, the longitudinal displacement mechanism motor, the feeding table rotary motor, and the marking machine, respectively.

[0019] Preferably, it also includes a lateral displacement mechanism tank chain for protecting the cables and pipelines of the lateral displacement mechanism, maintaining the lines neat and preventing tangling when the lateral displacement mechanism platform moves.

[0020] Preferably, it also includes a feeding platform, which together with the feeding table forms the basis for placing parts.

[0021] Preferably, the longitudinal displacement mechanism platform is slidably connected to the longitudinal displacement mechanism and is driven by the longitudinal displacement mechanism motor.

[0022] Preferably, the signal sensor receives the part arrival signal, reference position information and marking instructions transmitted by the position recognition camera, and sends control instructions to the lateral displacement mechanism motor, the longitudinal displacement mechanism motor and the feeding table rotary motor, as well as a marking instruction to the marking machine.

[0023] Preferably, the vacuum pump is electrically connected to the signal sensor and receives a vacuuming command to activate the vacuum suction cup.

[0024] Preferably, the feeding platform is made of aluminum alloy to ensure structural strength while reducing the overall weight of the device.

[0025] Preferably, there are three vacuum suction cups, which are evenly distributed on the surface of the feeding platform to stably adsorb the parts.

[0026] Preferably, the position recognition camera has a high-precision image recognition function, which can accurately identify the reference position of the part, and the recognition accuracy error is within the specified range.

[0027] The present invention has the following beneficial effects:

[0028] I. Ensuring Precise Marking Position: This device achieves precise adjustment of the marking position on parts through the coordinated operation of a position recognition camera, signal sensors, and multiple displacement and rotation mechanisms. The position recognition camera has high-precision image recognition capabilities, accurately identifying the reference position of the part with an accuracy error within a specified range. After receiving the part arrival signal, reference position information, and marking command from the position recognition camera, the signal sensors send control commands to the lateral displacement mechanism motor, the longitudinal displacement mechanism motor, and the unloading table rotary motor. This enables the lateral displacement mechanism platform, the longitudinal displacement mechanism platform, and the unloading table to move and rotate precisely according to the commands, thereby accurately adjusting the part to the marking position. This effectively avoids the marking position deviation problem caused by manual operation and ensures the accuracy of the marking position.

[0029] II. Reduced Marking Losses: Because it can precisely adjust the marking position of parts, it avoids rework and scrap due to marking position deviations. During manual marking, production personnel are prone to problems such as excessive deviation in marking information position or unclear, unrecognizable information due to fatigue, distraction, or lack of experience. These problems can lead to rework or even scrap of parts, resulting in production losses for the company. The automatic adjustment function of this device effectively solves these problems, reducing unnecessary production losses and improving the product qualification rate.

[0030] III. Automating the Marking Process: This device automates the marking process. From placing and fixing the parts, to identifying and adjusting their positions, and then sending and executing marking commands, the entire process is completed automatically by the device, eliminating the need for manual operation. For example, a vacuum suction cup fixes the parts using vacuum adsorption, a position recognition camera automatically scans the parts' reference positions, signal sensors automatically receive and transmit information and send control commands, and the marking machine automatically performs the marking operation. This not only improves the automation level of the marking process but also saves labor costs.

[0031] IV. Improved Production Efficiency: Automated marking processes significantly shorten marking time and improve production efficiency. Manual marking requires production personnel to operate on each part individually, which is slow and easily affected by the operator's condition. This device, however, can quickly and continuously adjust the marking position and perform marking operations on parts, processing more parts in the same amount of time, thus meeting the high-efficiency requirements of modern automobile production.

[0032] V. Component Coordination Protection and Neatness: The tank chain of the lateral displacement mechanism works in conjunction with the lateral displacement mechanism to protect the cables and pipelines of the lateral displacement mechanism when the platform of the lateral displacement mechanism moves, maintain the neatness of the line and avoid tangling, ensure the stability and reliability of the device operation, and reduce the failure and downtime caused by line problems.

[0033] VI. Optimize the foundation for parts placement: The feeding platform and the feeding table together form the foundation for parts placement. This combination design provides a more stable and suitable placement environment for parts, which is conducive to the accurate placement and fixation of parts, and thus provides a good foundation for subsequent marking position adjustment and marking operations.

[0034] 7. Stable Adsorption of Parts: The vacuum suction cups are three in number and evenly distributed on the surface of the feeding platform. This design can more stably adsorb parts, ensuring that the parts will not move or shake during the position adjustment and marking process, thus guaranteeing the accuracy of the marking position and the marking quality.

[0035] 8. Reduce device weight while ensuring strength: The feeding platform is made of aluminum alloy, which reduces the overall weight of the device while ensuring structural strength. This makes the device more flexible during operation, reduces energy consumption, and also reduces the requirements for the equipment foundation, thus reducing the installation and maintenance costs of the device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a top view of an embodiment of the present invention.

[0038] Figure 2 This is a side view of an embodiment of the present invention.

[0039] In the diagram: 1. Lateral displacement mechanism platform; 2. Lateral displacement mechanism slide rail; 3. Lateral displacement mechanism tank chain; 4. Lateral displacement mechanism motor; 5. Longitudinal displacement mechanism platform; 6. Feeding platform; 7. Feeding table; 8. Vacuum suction cup; 9. Position recognition camera; 10. Signal sensor; 11. Feeding table rotary motor; 12. Vacuum pump. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figures 1 to 2 As shown, an automatic adjustment device for marking position of parts includes:

[0042] Lateral displacement mechanism platform 1 is used to support parts and enable lateral movement;

[0043] The transverse displacement mechanism slide rail 2 is slidably connected to the transverse displacement mechanism platform 1, providing sliding guidance for the transverse displacement mechanism platform 1;

[0044] The lateral displacement mechanism motor 4 is connected to the lateral displacement mechanism platform 1 for driving;

[0045] Longitudinal displacement mechanism platform 5 is used to support parts and realize longitudinal movement;

[0046] The feeding platform 7 directly supports the parts, and the rotating motor of the feeding platform 7 is connected below it.

[0047] Vacuum suction cup 8 is fixed to the surface of the feeding table 7 and is used to fix parts by vacuum suction.

[0048] Position recognition camera 9 is used to scan the reference position of the part;

[0049] Signal sensor 10 is electrically connected to location recognition camera 9;

[0050] The rotary motor of the unloading platform 7 is directly connected to the unloading platform 7;

[0051] Vacuum pump 12 is connected to vacuum suction cup 8 through a gas pipeline;

[0052] The marking machine is electrically connected to the signal sensor 10.

[0053] Among them, the signal sensor 10 is electrically connected to the transverse displacement mechanism motor 4, the longitudinal displacement mechanism motor, the feeding table 7 rotary motor, and the marking machine respectively.

[0054] like Figures 1 to 2 As shown, the part to be marked is placed on the feeding platform 7, the vacuum pump 12 is started, and the vacuum suction cup 8 generates a vacuum suction force through the air pipeline, which firmly fixes the part on the surface of the feeding platform 7, preventing the part from moving or shaking during subsequent position adjustment and marking process.

[0055] Location information acquisition: The location recognition camera 9 scans the parts placed on the feeding table 7, and uses its high-precision image recognition function to accurately identify the reference position of the parts, and transmits the part arrival signal, reference position information and marking instructions to the signal sensor 10 that is electrically connected to it.

[0056] After receiving the information transmitted by the position recognition camera 9, the signal sensor 10 analyzes and processes it according to a preset program and algorithm. Then, it sends control commands to the lateral displacement mechanism motor 4, the longitudinal displacement mechanism motor, and the rotary motor of the feeding table 7. Upon receiving the control command from the signal sensor 10, the lateral displacement mechanism motor 4 starts operating, driving the lateral displacement mechanism platform 1 to move laterally along the lateral displacement mechanism slide rail 2 via a drive connection, thereby adjusting the position of the part in the lateral direction. The longitudinal displacement mechanism platform 5 also carries the part; the longitudinal displacement mechanism motor drives the longitudinal displacement mechanism platform 5 to move according to the command from the signal sensor 10, achieving position adjustment of the part in the longitudinal direction. Upon receiving the command from the signal sensor 10, the rotary motor of the feeding table 7 drives the feeding table 7 to rotate, further adjusting the angular position of the part to ensure precise alignment between the part's reference position and the marking position of the marking machine. Once the part's position is accurately adjusted, the signal sensor 10 sends a marking command to the marking machine, which then begins operation, performing a marking operation at the designated position on the part to complete the marking task.

[0057] like Figures 1 to 2As shown, the device also includes a lateral displacement mechanism tank chain 3, used to protect the cables and pipelines of the lateral displacement mechanism, maintaining neatness and preventing tangling as the lateral displacement mechanism platform 1 moves. Driven by the lateral displacement mechanism motor 4, the lateral displacement mechanism platform 1 moves laterally along the lateral displacement mechanism slide rail 2. During this movement, the cables and pipelines connected to the lateral displacement mechanism platform 1 move accordingly. Without the protection of the lateral displacement mechanism tank chain 3, these cables and pipelines are prone to becoming tangled and disordered, affecting not only the aesthetics of the device but, more importantly, potentially causing cable damage and pipeline blockage, thus affecting the normal operation of the device. The lateral displacement mechanism tank chain 3 has a specific internal spatial structure that can neatly house the cables and pipelines. When the lateral displacement mechanism platform 1 moves, the tank chain flexibly extends or retracts with the platform's movement, always maintaining the neat arrangement of the cables and pipelines, preventing tangling, effectively protecting the cables and pipelines, and ensuring the stable and reliable operation of the device's electrical and pipeline systems.

[0058] like Figures 1 to 2 As shown, it also includes a feeding platform 6, which, together with the feeding table 7, forms the foundation for placing parts. The feeding platform 6 and feeding table 7 together constitute a stable foundation for placing parts. The feeding table 7 directly supports the parts, providing a fixed bearing surface, while the feeding platform 6 supports the feeding table 7 as a whole, ensuring that the feeding table 7 remains stable during subsequent part position adjustments and marking processes, preventing shaking or displacement due to vibrations or other factors generated during device operation. This provides a reliable foundation for accurate part placement and subsequent operations.

[0059] like Figures 1 to 2 As shown, the longitudinal displacement mechanism platform 5 is slidably connected to the longitudinal displacement mechanism and is driven by the longitudinal displacement mechanism motor. This slidable connection provides guidance for the longitudinal movement of the longitudinal displacement mechanism platform 5. When the longitudinal displacement mechanism motor operates, its output shaft converts the rotational motion into linear motion through a specific transmission device (such as a lead screw and nut pair). Taking the lead screw and nut pair as an example, the rotation of the longitudinal displacement mechanism motor drives the lead screw to rotate. The nut on the lead screw is fixedly connected to the longitudinal displacement mechanism platform 5. Under the action of the lead screw's rotation, the nut moves linearly along the lead screw, thereby driving the longitudinal displacement mechanism platform 5 to move in the longitudinal direction, realizing the adjustment of the part's position in the longitudinal direction.

[0060] like Figures 1 to 2As shown, the signal sensor 10 receives the part arrival signal, reference position information, and marking command transmitted by the position recognition camera 9, and sends control commands to the lateral displacement mechanism motor 4, the longitudinal displacement mechanism motor, and the rotary motor of the feeding table 7, as well as a marking command to the marking machine. The position recognition camera 9 scans the part placed on the feeding table 7 to obtain the part arrival signal (indicating that the part has been placed in the appropriate position), reference position information (feature position information on the part used for positioning and marking), and marking command (related commands such as when to perform marking). This information is transmitted to the signal sensor 10 in the form of electrical signals. After receiving this information, the signal sensor 10 analyzes and processes it according to a preset program and algorithm. For the part arrival signal, it confirms that the part is in place and subsequent operations can be performed; for the reference position information, it compares it with the preset standard position and calculates the deviation values ​​of the part in the lateral, longitudinal, and angular directions; for the marking command, it determines the marking time node. Then, the signal sensor 10 generates corresponding control commands based on the deviation value and sends them to the transverse displacement mechanism motor 4, the longitudinal displacement mechanism motor, and the feed table 7 rotary motor, respectively, so that they can move the corresponding displacement or angle to adjust the part to the accurate marking position. At the same time, after the part is in the correct position, the signal sensor 10 sends a marking command to the marking machine, triggering the marking machine to perform the marking operation.

[0061] like Figures 1 to 2 As shown, the vacuum pump 12 is electrically connected to the signal sensor 10 and receives a vacuuming command to activate the vacuum chuck 8. After detecting that preset conditions such as the part being placed in position are met, the signal sensor 10 sends a vacuuming command to the vacuum pump 12. Upon receiving this command, the vacuum pump 12 begins operation, extracting air from the vacuum chuck 8 through the air passage, creating a vacuum environment and generating negative pressure inside the vacuum chuck 8. Since the vacuum chucks 8 are evenly distributed on the surface of the loading platform 7 (three in total), they work together to apply suction force to the part from multiple points, thus stably adhering the part to the loading platform 7 and preventing the part from moving or shaking during subsequent part position adjustments and marking processes.

[0062] like Figures 1 to 2 As shown, the feeding platform 7 is made of aluminum alloy to ensure structural strength while reducing the overall weight of the device. Aluminum alloy has high strength, capable of withstanding the weight of the parts and various forces generated during device operation, ensuring that the feeding platform 7 will not deform or be damaged during long-term use, thus providing a stable foundation for placing the parts. At the same time, aluminum alloy has a relatively low density; compared to some other metal materials, using aluminum alloy to make the feeding platform 7 effectively reduces the overall weight of the device, facilitating installation, movement, and transportation.

[0063] like Figures 1 to 2As shown, there are three vacuum suction cups 8, evenly distributed on the surface of the feeding table 7, to stably adsorb parts. The position recognition camera 9 has high-precision image recognition capabilities, enabling accurate identification of the reference position of the parts within a specified accuracy range. The position recognition camera 9 uses its high-precision image recognition function to scan the parts placed on the feeding table 7. It acquires image information of the parts through an optical lens and converts it into electrical signals. The internal image processing chip processes and analyzes these electrical signals, using specific image recognition algorithms, such as feature extraction algorithms (e.g., SIFT, SURF), to extract the reference position features of the parts (e.g., specific markings on the parts, edge contours, etc.) from the image. Then, the extracted features are compared with standard reference position features pre-stored in the system. Based on the comparison results, the actual reference position of the part is determined, and the identification accuracy error is within a specified range, providing accurate position information for subsequent part position adjustments.

[0064] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. An automatic adjustment device for the marking position of parts, characterized in that, include: A lateral displacement mechanism platform (1) is used to support parts and enable lateral movement; The lateral displacement mechanism slide rail (2) is slidably connected to the lateral displacement mechanism platform (1) to provide sliding guidance for the lateral displacement mechanism platform (1); The lateral displacement mechanism motor (4) is driven and connected to the lateral displacement mechanism platform (1); The longitudinal displacement mechanism platform (5) is used to support the parts and realize longitudinal movement; The feeding platform (7) directly supports the parts, and the feeding platform (7) rotary motor is connected below; Vacuum suction cup (8) is fixed to the surface of the feeding table (7) and is used to fix the parts by vacuum suction. A position recognition camera (9) is used to scan the reference position of the part; A signal sensor (10) is electrically connected to the location recognition camera (9); The feeding platform (7) is rotated by a motor and is directly connected to the feeding platform (7); A vacuum pump (12) is connected to the vacuum suction cup (8) via an air passage pipe; The marking machine is electrically connected to the signal sensor (10); The signal sensor (10) is electrically connected to the transverse displacement mechanism motor (4), the longitudinal displacement mechanism motor, the feeding table (7) rotary motor, and the marking machine, respectively.

2. The automatic adjustment device for marking position of parts according to claim 1, characterized in that, It also includes a lateral displacement mechanism tank chain (3) for protecting the cables and pipelines of the lateral displacement mechanism, keeping the lines neat and avoiding tangling when the lateral displacement mechanism platform (1) moves.

3. The automatic adjustment device for marking position of parts according to claim 2, characterized in that, It also includes a material feeding platform (6), which together with the material feeding table (7) forms the basis for placing parts.

4. The automatic adjustment device for marking position of parts according to claim 3, characterized in that, The longitudinal displacement mechanism platform (5) is slidably connected to the longitudinal displacement mechanism and is driven by the longitudinal displacement mechanism motor.

5. The automatic adjustment device for marking position of parts according to claim 4, characterized in that, The signal sensor (10) receives the part arrival signal, reference position information and marking instructions transmitted by the position recognition camera (9), and sends control instructions to the transverse displacement mechanism motor (4), the longitudinal displacement mechanism motor and the material feeding table (7) rotary motor, and sends marking instructions to the marking machine.

6. The automatic adjustment device for marking position of a part according to claim 5, characterized in that, The vacuum pump (12) is electrically connected to the signal sensor (10) and receives a vacuuming command to activate the vacuum suction cup (8).

7. The automatic adjustment device for marking position of a part according to claim 6, characterized in that, The feeding platform (7) is made of aluminum alloy.

8. The automatic adjustment device for marking position of a part according to claim 7, characterized in that, The number of vacuum suction cups (8) is 3, which are evenly distributed on the surface of the feeding platform (7) to stably adsorb the parts.

9. The automatic adjustment device for marking position of a part according to claim 8, characterized in that, The position recognition camera (9) has a high-precision image recognition function, which can accurately identify the reference position of the part, and the recognition accuracy error is within the specified range.