Car body top cover tire mold edge rolling clamp system

Abstract

The invention provides a vehicle body top cover tire mold edge rolling clamp system. The vehicle body top cover tire mold edge rolling clamp system comprises a base, an adjustable tire mold system, a positioning system, a workpiece detection device and a control system. Multi-vehicle-type adaptation is achieved through an adjustable tire film system, a driving device drives an adjustable supporting block with a displacement sensor to move along a guide rail, and the curved surface of a tire film is dynamically matched with the inner contour of a vehicle body top cover; the positioning system adopts an adjustable positioning pin / block to cooperate with a visual detection device, so that millimeter-level precise positioning of the top cover of the vehicle body is realized; the workpiece detection device is provided with a detection probe arranged on the periphery of the tire film and monitors the edge rolling angle, deformation and fitting degree in the whole process. The control system integrates real-time data of each component based on a PLC, and dynamically adjusts process parameters through closed-loop feedback. According to the system, the clamp universality, the positioning precision and the edge rolling quality automation level are remarkably improved, and the manual intervention intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of automobile body manufacturing, and more specifically, to a body roof liner rolling clamp system. Background Technology

[0002] In the automotive body manufacturing industry, the hemming process for the roof is one of the key steps. Traditional tire film hemming fixtures typically employ a fixed structure, requiring different fixtures to be used for different vehicle models. This not only results in high replacement costs and low efficiency but also makes it difficult to guarantee positioning accuracy, leading to significant dimensional deviations in the hemmed roof and affecting the overall assembly quality of the vehicle body. With the diversified development of Jiangling Ford series models, higher demands are placed on the versatility and precision of roof hemming fixtures.

[0003] The existing similar technical solutions are mainly fixed structure tire film rolling jigs designed for a single vehicle model. Its structure mainly includes a base, a fixed tire film and a rolling mechanism. The base is used to support the entire jig, the fixed tire film is designed according to the shape of the roof of a specific vehicle model, and the rolling mechanism is installed on one side of the fixed tire film for rolling the roof of the vehicle model. The structure of this solution is simple, and the components are mainly fixed and connected by bolts. It lacks an adjustable structure and has the following disadvantages: (1) Low positioning accuracy: The fixed structure tire film is difficult to accurately adapt to the shape of different vehicle roofs. During the rolling process, the workpiece positioning deviation is easy to occur, resulting in inaccurate rolling position. (2) Poor adaptability: It can only be used for a single vehicle model. When the vehicle model is changed, the entire jig needs to be replaced, which is costly and inefficient. (3) Low degree of automation: The rolling process requires a lot of manual intervention, such as workpiece positioning and adjustment, which not only increases the labor intensity but also easily introduces human error. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a vehicle roof liner rolling clamp system that, while ensuring the positioning accuracy and rolling quality of the vehicle roof, can be adjusted according to the shape of the vehicle roof for different vehicle models, thereby improving versatility and reducing clamp replacement costs and time.

[0005] To achieve the above-mentioned technical effects, the present invention adopts the following technical solution:

[0006] A vehicle roof liner rolling clamp system includes a base, an adjustable liner system, a positioning system, a workpiece inspection device, and a control system, wherein:

[0007] The base is made of welded steel and has multiple mounting holes on its surface;

[0008] The adjustable diaphragm system is mounted on the base and includes: a diaphragm body, the bottom of which is fixedly connected to the mounting holes of the base via bolts; multiple adjustable support blocks mounted on the base along the edge of the diaphragm body; a drive device that drives the adjustable support blocks to move along a guide rail to adjust the curved profile of the diaphragm; each adjustable support block is also equipped with a displacement sensor for real-time monitoring of the support block position; the curved profile of the upper surface of the adjustable diaphragm system matches the curved profile of the inner surface of the vehicle roof.

[0009] The positioning system is arranged around the adjustable diaphragm system and includes: a positioning pin and a positioning block, which cooperate with the positioning holes and positioning surfaces on the vehicle roof to achieve millimeter-level precision positioning of the vehicle roof; a drive module for driving the positioning pin and positioning block to move to the target position; and a vision inspection device integrated on the positioning pin and positioning block to detect the positioning accuracy of the vehicle roof.

[0010] The workpiece inspection device includes a number of inspection probes distributed around the periphery of the membrane body. The inspection probes are used to measure the rolling angle and deformation of the rolling part during the rolling process.

[0011] The control system is communicatively connected to the drive device, the displacement sensor, the vision inspection device, and the workpiece inspection device, and realizes the overall coordinated action of the fixture through PLC control.

[0012] Optionally, the positioning pins and positioning blocks in the positioning system are engaged with a pre-set groove around the adjustable membrane system via a slider, and their lateral positions are fixed by fastening bolts.

[0013] Optionally, the drive device and drive module include a servo motor or a cylinder.

[0014] Optionally, the detection probe detects the workpiece edge size and surface quality before the hemming begins, and detects the workpiece hemming fit after the hemming.

[0015] Optionally, the control system compares the detection data with the preset process threshold in real time during the hemming process and makes real-time adjustments to each component of the fixture.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. High versatility: The adjustable diaphragm system provided in this invention can be adjusted according to the shape of the roof of different vehicle models, which greatly improves the versatility of the clamp and reduces the cost and time of clamp replacement.

[0018] 2. High positioning accuracy: The application of the positioning system and vision inspection device in this invention ensures the positioning accuracy of the vehicle body roof, thereby improving the stability of the hemming quality.

[0019] 3. High degree of automation: The control system in this invention realizes the automation of the hemming process, reduces manual intervention, improves production efficiency, and reduces labor intensity. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the vehicle roof tire film rolling clamp system described in the embodiment;

[0022] Figure 2 This is a top view of the vehicle roof tire film rolling clamp system described in the embodiment;

[0023] Figure 3 This is a front view of the vehicle roof tire film rolling clamp system described in the embodiment;

[0024] Figure 4 This is a side view of the vehicle roof liner rolling clamp system described in the embodiment.

[0025] The diagram shows:

[0026] 1-Base

[0027] 2- Adjustable membrane system

[0028] 3-Positioning System

[0029] 4-Workpiece Inspection Device

[0030] 5-Control System

[0031] 6-Adjustable support block

[0032] 7-Positioning Pin

[0033] 8-Location Block Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, all directional indications (such as up, down, left, right, front, back, bottom, etc.) in this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, descriptions involving "first," "second," etc., in this application are 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.

[0037] like Figures 1 to 4 As shown, this technical solution relates to a vehicle roof liner rolling jig system, aiming to solve the problems of insufficient positioning accuracy, poor adaptability, and low automation in existing technologies. The jig mainly consists of five parts: a base 1, an adjustable liner system 2, a positioning system 3, a workpiece inspection device 4, and a control system 5. Through integrated design, it achieves high-precision rolling of the vehicle roof liner. In this embodiment, the liner refers to the curved jig body used to support the vehicle roof liner.

[0038] The base 1 is made of high-strength steel and has sufficient strength and rigidity to support the entire fixture. Multiple mounting holes are provided on it for mounting components such as the adjustable membrane system 2 and the rolling actuator.

[0039] The adjustable diaphragm system 2, as the core component of this embodiment, is specially designed based on the common structural features and size range of the vehicle roof. It presents a curved structure adapted to the vehicle roof and mainly includes the diaphragm body, multiple adjustable support blocks 6, and a drive device. The bottom of the diaphragm body is fixedly connected to the mounting holes on the base 1 by multiple bolts to ensure overall stability. Driven by the drive device, the multiple adjustable support blocks 6 precisely correspond to the key stress points and positioning points of the vehicle roof, achieving coarse positioning of the vehicle roof. Specifically, the adjustable support blocks 6 are mounted on the base 1 via guide rails and are positioned at the edge of the diaphragm body. The adjustable support blocks 6 act as a limiting structure to match the edge shape of different vehicle roof models, providing initial positioning constraints for the vehicle roof in the horizontal direction. The drive device can move the adjustable support blocks 6 on the guide rails, thereby adjusting the shape of the diaphragm to adapt to the needs of different vehicle roof models. Furthermore, each adjustable support block 6 is equipped with a high-precision displacement sensor for real-time monitoring of its position, ensuring the accuracy of the diaphragm shape. Figure 3 As shown in the front view, the upper surface contour of the entire adjustable diaphragm system 2 closely matches the inner surface contour of the vehicle roof, ensuring stable support when the vehicle roof is placed. Figure 4 In the left view shown, the contour of the adjustable liner system 2 in the lateral direction matches the curvature of the vehicle roof, further enhancing the fit and support of the vehicle roof. This specially designed adjustable liner system 2 does not require a complete replacement of the liner structure; by adjusting the adjustable support block 6, it can adapt to the diverse shape requirements of the vehicle roof, providing a stable and reliable foundation for subsequent positioning and hemming operations.

[0040] In addition, a positioning system 3 is provided around the adjustable diaphragm system 2. The positioning system 3 includes multiple positioning pins 7 and positioning blocks 8 for millimeter-level precise positioning and fixing of the vehicle roof. The positioning pins 7 and positioning blocks 8 are driven by a servo motor or cylinder to move in a groove around the adjustable diaphragm system 2. The positions of the positioning pins 7 and positioning blocks 8 can be adjusted according to the shape of the vehicle roof: the positioning pins 7 and positioning blocks 8 engage with a pre-set groove around the adjustable diaphragm system 2 via a bottom slider, and are fixed laterally by fastening bolts; the servo motor / cylinder is driven according to the vehicle roof parameters of the target model, and the positioning pins 7 are moved along the groove to the target coordinates via a lead screw drive. Precise positioning of the vehicle roof is achieved by engaging with the positioning holes and positioning surfaces on the vehicle roof. Furthermore, the positioning system 3 is also equipped with a vision inspection device to detect the positioning accuracy of the vehicle roof and feed the detection results back to the control system 5 for real-time adjustment.

[0041] In addition, a workpiece inspection device 4 is installed around the adjustable liner system 2 to ensure the quality of the workpiece's hemming. This device consists of several inspection probes, which employ high-precision sensor combination recognition technology to align with the hemming area of ​​the vehicle roof workpiece. Before hemming begins, this device inspects the dimensions, shape, and surface quality of the vehicle roof edge to determine if it meets process requirements. During hemming, it monitors the hemming angle and deformation of the hemmed area in real time. After hemming is completed, it comprehensively inspects the hemming quality, such as fit defects. Simultaneously, the workpiece inspection device 4 is connected to the control system 5, transmitting the inspection data in real time. If any abnormality is detected, the control system 5 promptly issues a command to stop the hemming operation and sounds an alarm, facilitating operator intervention.

[0042] The control system 5 uses a PLC (Programmable Logic Controller) to control the valve island's I / O signals. Through coordinated control of the adjustable liner system 2, positioning system 3, and workpiece inspection device 4, it automates the hemming process of the vehicle body roof. The system receives feedback signals from the vision inspection device and the workpiece inspection device 4, compares the inspection data with preset process thresholds in real time during the hemming process, adjusts each component of the fixture in real time, and stops hemming and issues an alarm when the threshold is exceeded, ensuring the accuracy and stability of the hemming process.

[0043] The key points and protection points of this embodiment are as follows: The adjustable liner system 2 moves the adjustable support block 6 (including displacement sensor) through the drive device to adapt to different vehicle roofs without the need to replace the entire liner, which is the core innovation of this invention; the independent positioning system 3 (including adjustable positioning pins 7 / blocks and vision inspection device) achieves millimeter-level precision positioning of the vehicle roof; the workpiece inspection device 4 ensures the quality of the hemming and improves the reliability of the process by detecting the workpiece status in real time and feeding it back to the control system 5; the automated control system 5 uses PLC to coordinate and control the various components of the fixture, improves the automation level of the hemming process, and reduces labor intensity.

[0044] The advantages of this embodiment include strong versatility, adapting to the styling requirements of different vehicle roofs without requiring a complete replacement of the tire film fixture, greatly improving fixture versatility and reducing fixture replacement costs and time; high positioning accuracy, with the application of positioning system 3 and vision inspection device ensuring the positioning accuracy of the vehicle roof and improving the stability of the hemming quality; high degree of automation, with control system 5 automating the hemming process, reducing manual intervention, improving production efficiency, and reducing labor intensity; and good hemming quality, with workpiece inspection device 4 monitoring the workpiece status in real time, promptly identifying and reporting problems, ensuring the stability of the hemming process, thereby improving hemming quality. These advantages have been verified through experimental demonstration and logical reasoning, significantly improving the production efficiency and quality consistency of vehicle models. The entire solution embodies a full-chain innovation from basic support to intelligent control, completely revolutionizing the limitations of traditional hemming fixtures.

[0045] The specific embodiments of the present invention have been described above. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A vehicle roof liner rolling clamp system, characterized in that, Includes a base, an adjustable diaphragm system, a positioning system, a workpiece inspection device, and a control system, wherein: The base is made of welded steel and has multiple mounting holes on its surface; The adjustable diaphragm system is mounted on the base and includes: a diaphragm body, the bottom of which is fixedly connected to the mounting holes of the base via bolts; multiple adjustable support blocks mounted on the base along the edge of the diaphragm body; a drive device that drives the adjustable support blocks to move along a guide rail to adjust the curved profile of the diaphragm; each adjustable support block is also equipped with a displacement sensor for real-time monitoring of the support block position; the curved profile of the upper surface of the adjustable diaphragm system matches the curved profile of the inner surface of the vehicle roof. The positioning system is arranged around the adjustable diaphragm system and includes: a positioning pin and a positioning block, which cooperate with the positioning holes and positioning surfaces on the vehicle roof to achieve millimeter-level precision positioning of the vehicle roof; a drive module for driving the positioning pin and positioning block to move to the target position; and a vision inspection device integrated on the positioning pin and positioning block to detect the positioning accuracy of the vehicle roof. The workpiece inspection device includes a number of inspection probes distributed around the periphery of the membrane body. The inspection probes are used to measure the rolling angle and deformation of the rolling part during the rolling process. The control system is communicatively connected to the drive device, the displacement sensor, the vision inspection device, and the workpiece inspection device, and realizes the overall coordinated action of the fixture through PLC control.

2. The vehicle roof liner rolling clamp system according to claim 1, characterized in that: The positioning pins and positioning blocks in the positioning system are engaged with the sliding grooves around the adjustable membrane system by a slider, and their lateral positions are fixed by fastening bolts.

3. The vehicle roof liner rolling clamp system according to claim 1, characterized in that: The drive device and drive module include a servo motor or a cylinder.

4. The vehicle roof liner rolling clamp system according to claim 1, characterized in that: The detection probe detects the edge size and surface quality of the workpiece before the rolling process begins, and detects the fit of the rolled edge after the rolling process begins.

5. The vehicle roof liner rolling clamp system according to claim 1, characterized in that: The control system compares the detection data with the preset process threshold in real time during the hemming process and makes real-time adjustments to each component of the fixture.

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