so
这是描述信息
分类出来
  • Automotive Equipment Dept. Automotive Equipment Dept. Automotive Equipment Dept.
    • Highly Flexible Solution
      • Flexible Fixture Technology Flexible Fixture Technology
        • Windmill Switching Technology Windmill Switching Technology Windmill Switching Technology

          A switching unit driven by a motor and precisely controlled by an index plate is adopted to meet the switching of positioning units of four vehicle types, so that the occupied space is small, and the switching speed is high.

           

           

          Name
          parameter
          Rated static load 200kgf
          Repeated positioning accuracy (diameter Φ 400 mm)
          ±0.05mm
          Allowable eccentric distance in X direction
          ≤200mm
          Allowable eccentric distance in Y direction
          ≤200mm
          Clamp fixing plate diameter
          400mm(customizable)
          Number of stations 4 stations (with station identification)
          cycle time (90 degrees)
          3.5s
          Input control voltage AC220V
          Control electrical access Harting(Quick connector)
          Overall dimensions L550mm*W195mm*H660mm

           

           
          Windmill Switching Technology
        • Flipping and Sliding Unit Flipping and Sliding Unit Flipping and Sliding Unit

          In the traditional fixture modularization switching mode, the clamping unit in the fixture can realize the switching of positioning of multiple vehicle types through flipping, sliding, lifting, rotating and other modes. Featured by low technical difficulty and simple structure, it’s convenient for maintenance and has wide application range.

          Shanghai Jun Yi optimized this switching mode and made a modular unit design.

           

          Structural features:

          1. Stable structure.

          2. High limit precision.

          3. Small rotation eccentricity and stable stress.

          Due to the fixed position, it is applicable to the situation where the vehicle type information has been confirmed.

          Because each car uses one location, it occupies much space. When there are dense and many positioning positions for multiple vehicle types, you are not recommended to use the flipping and sliding unit.

           

           

           
          Flipping and Sliding Unit
        • Servo Switching Technology Servo Switching Technology Servo Switching Technology

          The NC switching unit independently developed by Shanghai Jun Yi is driven by a servo motor with a positioning accuracy of+/-0.1 mm. Under the condition that the positioning aperture of each vehicle type is consistent, any vehicle type can be positioned theoretically as long as it’s within the movement range of the mechanism.

           
           
          Servo Switching Technology
        • Local Switching Unit Local Switching Unit Local Switching Unit

          It is often seen in the switching of variant models. These models are characterized by consistent position and size of parts of the products, large difference in local positions, and local switching required of fixture.

           
           

          Shanghai Jun Yi has made modular design for local switching units.

          1. Standard switching protection mechanism.

          2. Standard electrical docking mechanism.

          3. Standard positioning and locking mechanism.

          They have been successfully applied in many projects.

           

           
          Local Switching Unit

        The so-called flexible Fixture technology means that a single fixture equipment can complete product positioning functions of multiple models and different structures.

         

         

         

        Windmill sliding unit

         

          

         

         

        Flipping and translation unit

         

         

         

        Servo positioning unit

         

         

         

        Local switching unit

         

         

         

         
        Flexible Fixture Technology
      • Flexible Storage Technology Flexible Storage Technology
        • Vertical switching Library Vertical switching Library Vertical switching Library
          Systematic introduction:
           
          Modular vertical repository: mainly used in multi-vehicle mixed-flow production line tooling switching system. The three-dimensional storage space is simple and compact, and the lifting structure of the storage space is equipped with anti-falling device. The gear rack and motor drive is used for the storage transmission, which ensures the accuracy and speed, and the control is simple. It can be flexibly extended to 4 models, 6 models or even 8 models.
           
           
           
          System advantages:
           
          1. Small space;
           
          2. Expansibility;
           
          3. The switching control is simple.
           
          4. High speed-high precision;
           
          5. Low noise, high stability;
           
          6. Easy maintenance;
           

           

          category
          parameter
          Application Type
          Device Storage
          load Single storage device≤3.5T
          Carrier size
          L
          1.8~5m
          W
          1.5~2.5m
          Jack-up stroke
          ≤4m
          Allowable fixture height
          ≤1.6m
          Main slide speed
          0.2~1m/s
          Sliding speed
          ≤0.15m/s
          Repository switching speed
          0.2~0.5m/s
          Motor type Servo, Frequency Conversion, Double Speed
          Slide color mark
          Customized
          Fast Energy Switching Interface Communication Form
          ProfiNet、Profibus
          DeviceNet、I/O

           

           
          Vertical switching Library
        • Horizontal switching Library Horizontal switching Library Horizontal switching Library
          Systematic introduction:
           
          Modular horizontal repository: mainly used in multi-vehicle mixed-flow production line tooling switching system. The system mainly includes switching main track and horizontal repository. The horizontal repository is modular design, flexible collocation and diverse combination forms (see figure below for details). The gear rack and motor drive is used for the storage transmission, which ensures the accuracy and speed, and the control is simple. It can be flexibly extended to 4 models, 6 models or even 8 models from storage.
           
           
          System advantages:
           
          1. The configuration is flexible and can realize various switching forms.
           
          2. Expansibility;
           
          3. The switching control is simple.
           
          4. High speed-high precision;
           
          5. Low noise, high stability;
           
          6. Easy maintenance;
           

           

           
          Horizontal switching Library
        • Fine positioning handover Fine positioning handover Fine positioning handover
          This mechanism provides a flexible switching system for multiple fixtures in a single workstation. Manual propulsion is adopted for the switching mode, and a switching device with a telescopic positioning pin at the bottom can accomplish the fixture positioning work quickly. It is beautiful, concise, simple to operate and can realize the fast switching of fixture tooling.
           
           

           

          Fine positioning and switching tooling

           

          Fine positioning switching truck

           

           
          Fine positioning handover
        • AGV Storage Switching AGV Storage Switching AGV Storage Switching

          AGV car can form a flexible automatic production line in the manufacturing industry. Its flexible movement route can be adapted to flexible applications in various automation fields. AGV trolley does not need manual control, only with auxiliary equipment, it can realize the automation of material and equipment transfer in workshop. The labor cost is greatly reduced.

           

           

          AGV Storage Switching Fixture

           

          AGV Storage Switching Material

           

           
          AGV Storage Switching

         

        Vertical switching Library

         

        Horizontal switching Library

         

        Fine positioning handover

         

        AGV Guided Switchover

         

         
        Flexible Storage Technology
      • Flexible Control Technology Flexible Control Technology

        Flexible Control Technology

         
      • Flexible Assembly Technology Flexible Assembly Technology
        Overall assembly technology is the key technology in the field of body welding. The modul-frame developed by Junyi has the characteristics of high flexibility and adaptability to multi-vehicle production.
         
        1. Storage technology is based on Junyi's years of experience in flexible fixture repository.
         
        2. Full servo control meets the requirement of flexible construction of different vehicle assembly workstations.

         

        Free and flexible system collocation

         

        Mature Technology Transfer Applications

         

         

      Mixed flow flexible technology of welding production line refers to flexible manufacturing technology that can be applied to various types of vehicles. For example, the production line can be used for production of Body-In-White and can be quickly adjusted to produce SUV BIW, so as to save equipment investment required for vehicle type upgrading and achieve the best balance point between welding and assembly production line and economy.

       

      Shanghai Jun Yi has made in-depth research on flexible fixture technology, flexible storage switching technology, flexible control technology (MES) and Framing assembly technology, and has formed a set of flexible production solutions.

       

      Flexible fixture technology

      flexible storage technology

      flexible control technology

      flexible Framing technology

       

       
    • High-Cycle Time Solution
      • High-tempo conveying High-tempo conveying

        Modular transport trolley: the second generation of guide rail transport system developed by Jun Yi, coupled with high-precision independent lifting platform, can meet your requirements of high-speed transport of vehicle body.

         

        Modul track specifications are divided into two categories according to the load weight:

        JYPT-B-L: Suitable for traditional cars and SUV bodies

        JYPT-B-H: Suitable for trucks, pickup trucks, MPV and other heavy-duty types (multi-model skid)

         
         

         

         
         
         
      • High-Speed Hemming System High-Speed Hemming System

        The pressing machine is used in traditional car door hemming process, which has the disadvantages of high cost, difficult commissioning, difficult type change, etc. At present, the whole automobile factory has gradually adopted robot hemming, but the traditional robot, affected by the hemming speed, is difficult to meet the requirements of high cycle time.

         

        Traditional robot hemming technology uses robots to drive hemming roller to hem the workpieces. As the rollers are passive in the hemming process, too fast running speed of robots will lead to wrinkling of workpieces, which is often incapable in high cycle tine hemming applications.

         

        Based on years of research and development experience in robot hemming, Shanghai Jun Yi has successfully developed a servo hemming tool system suitable for high-speed hemming, and the related products have been applied in the production practice of the main automobile factory.

         

        Features:

        1.Precision servo control system

        2.Speed and pressure monitoring system

         

        Value Embodiment:

        1.The hemming speed and production efficiency can be improved.

        2.The stability of product production can be effectively ensured through pressure monitoring.

        3.Closed-loop summary of production commissioning can be done through pressure monitoring data.

         
         
         
      • High-Cycle time Framing Solution High-Cycle time Framing Solution

        Framing technology is the key technology in the field of body welding and assembling. The modul-framer independently developed by Jun Yi can show its unique advantages in high cycle time production.

         

        1.Drag control: With full servo drive, high precision rack and pinion drive, imported guide rail transmission and standard load of 3T of framer frame, high-speed switching of maximum drag speed of 1m/s can be realized.

        2.Multi-robot configuration: through process optimization, the framing station can be configured with up to 14 robots, which can meet the process requirement of at least 80 spot welding points under the requirement of 60 JPH.

        3.The process flow can meet the requirements of high cycle time random production. The analysis of switching cycle time of random mixed-line models is as follows:

         

         

         

         

         
         
         

      As competition intensifies, more and more automobile factories need high cycle time to adapt to the comprehensive production capacity of multiple models due to the mixed production of multiple models. Shanghai Jun Yi provides customized products and solutions for your high cycle time application requirements.

       

       

      High-speed conveying system

       

      high-speed hemming system

       

      high-speed Framing system

       

       
    • Compact Solution
      • Three-Dimensional Storage Three-Dimensional Storage

        It is precisely because of the need of flexible multi-vehicle production that the temporary use area of ground storage is relatively large. In the intensive plant, Shanghai Jun Yi recommends the use of vertical storage to store multi-vehicle fixtures using the space in the air to meet the site requirements of customers. (See Product Center-Equipment Storage for details)

         

         
      • Three-dimensional Buffer Three-dimensional Buffer

        The traditional horizontal APC is placed on the ground, and the workpieces are generally arranged at a spacing of 400mm of individual parts. The accumulated number is more than 7, plus the head and tail of the machine, the length is generally more than 4 meters. The automatic welding station, especially the main welding line station, often wastes the width space of the workshop due to the arrangement of APC.

        From the perspective of Party A's lean production, Jun Yi has designed and developed a vertical buffer conveyor system, which can effectively improve the utilization rate of site space.

        Comparison:

         

        Traditional APC

        Vertical buff conveying system

          
         
      • Two-tier Platform Extension Technology Two-tier Platform Extension Technology

        When upgrading the cycle time to expand the model modification based on the limited space in the old workshop, it is often encountered with insufficient space, so an air expansion proposal can be considered.

         

        According to the actual foundation bearing situation on site, as well as the proposal planning and dynamic load of the two-layer platform, Jun Yi will prepare the drawings of foundation and submit to a qualified design institute for review to ensure that the static and dynamic load of the second-floor platform can meet the requirements of automatic production after site construction.

         
         
         

      When the plant site cannot fully plan the welding and assembling production scale you want, Shanghai Jun Yi can provide you with a variety of compact solutions, which have been applied in various field practices and meet the needs of customers for lean production.

       

      Vertical storage

      Vertical Convey

      Two-layer expansion

       

       
    • Efficient Solution

      Shanghai Jun Yi has formed a unique synchronous engineering system, a high-quality car body cultivation system and a high-quality proposal planning system through many years car body process planning experience and internal discussion and summary, providing customers with an important soft power foundation for production line integration.

       

    Automotive Equipment Dept:

     

    We provide you with advanced, professional and characteristic automobile welding solutions. Through our professional knowledge, we can meet all your process needs.

    We provide a highly flexible solution that can meet your demand for multi-model mixed-line production.

    We provide a high cycle time solution that can meet your production requirements of high-speed automation.

    We provide a compact solution that can maximize the use of workshop area to meet the requirements of automatic production.

    We provide efficient solutions that can offer you high-precision, high-quality body technical service system.

    We provide application solutions for various emerging technologies that can realize the production and application of the latest technologies for you.

    We are experts in the field of auto welding automation to support you to further develop your production and logistics processes, and provide customized production and services.

     
    Automotive Equipment Dept.
  • New Energy Equipment Dept. New Energy Equipment Dept. New Energy Equipment Dept.
    • Power Battery Module Assembly Line Power Battery Module Assembly Line

      Power Battery Module Line:

       

      In the process of automatic assembly of power battery modules, the original semi-automatic production line has become increasingly unable to meet the needs of battery manufacturers for high automation pace. The original work of manual stacking of cell and gluing has become a bottleneck in production.

       

       

      For this reason, Shanghai Jun Yi developed an intelligent assembly line with high production cycle time after great concentration, which includes component feeding, cleaning, gluing, module stacking, side plate gluing, module side seam CMT welding/side seam laser welding, module laser code engraving, module heating, module film sticking, module standing, pole laser welding, welding seam polishing, and module automatic Offline. The key stations realize full-automatic production, which can achieve flexible production of various products, and is compatible with many module sizes and process types.

       

      1. Multi-process compatibility: side seam welding is compatible with CMT arc welding and laser welding, which can realize fast switching.

       

      Visual positioning system: after the battery module is assembled, the dimensional tolerance is often large, which makes it difficult to meet the requirements of laser processing on the gap position and size, resulting in a sharp decline in processing quality. The introduction of visual positioning system can meet the requirements of accurate positioning, with a general accuracy reach to more than±0.05 mm. Through data collection by visual photographing, the incoming material deviation is fed back to the control system, thus realizing high-precision positioning of the processing position.

       

      2. Visual tracking system: As the height of each welding position of the battery module cannot be completely consistent, false welding and explosive welding will occur during welding, and it’s difficult to guarantee the welding quality. The height following system must be equipped, that is, at each welding position, the focal length adjustment shaft can make fine-tune to fix the laser welding head at the focal length position.

       

      Visual addressing and laser ranging is adopted to address the pole position of the module, wherein the visual camera positions the pole dimensional deviations in X and Y directions, the laser ranging determines the pole dimensional deviation in Z direction, and the deviation value is fed back to the laser welding head to ensure the welding quality. At the same time, laser ranging is adopted to check the flatness of the pole cylinder and improve the qualification rate of equipment.

       

      3. Multi-product adaptive system: after cells of different types and sizes are stacked into modules of different sizes, an adaptive system, especially the welding process, needs to be adapted to ensure the linkage of the whole line cycle time. Only adapt to modules of different sizes can complete the module PACK process. The adaptive system loads the necessary servo switching system to implement the automatic switching and positioning of the position in the product processing area according to the incoming material of the product. It can complete the welding work and transmit it to the next process without being limited by any incoming material.

       

      4. Post-weld intelligent inspection: manual inspection of weld appearance is used to keep objective criterion, and judgment based on experience is difficult to quantify and easy to misjudge. Laser profile scanner and CCD camera are used to collect the three-dimensional information and color information of the welding seam, so that the judgment criterion is digitized. The length, width, height and color of the welding seam are checked to determine whether there are weld penetration, broken arc, air holes and discoloration of welding seam. The equipment automatically judges whether the welding seam is qualified, and the welding seam collected is uploaded to MES for later query.

       

      5. MES management system: The whole production line body has management modules such as manufacturing data management, planning and scheduling management, production scheduling management, inventory management, quality management, work center, material management, production process control, underlying data integration analysis, upper layer data integration decomposition, etc. The whole production line can monitor the production and test data of the production process in real time, and the data can be traced and stored accurately. The whole production line is equipped with server console and large-screen display function, implementing intelligent manufacturing and digital enterprise platform.

       
    • PACK Line for Battery Module PACK Line for Battery Module
      PACK Line Features of Jun Yi Battery Module:
       
      1. Module management applies intelligent three-dimensional storage technology and saves space at the same time.
       
      2. AGV trolley Pack assembly line can flexibly adjust the process route.
       
      3. Robots automatically assemble modules to reduce labor intensity.
       
      4. Flexibly adjustable production process is suitable for mixed line production of different types of products such as pure electric and hybrid power.
       
      5. Product data is automatically uploaded and saved, with good traceability.
       
      6. A full set of error prevention system can prevent neglected loading, misloading, and automatic alarm display.

       

       
    • Automatic Production Line of Battery Tray Automatic Production Line of Battery Tray
      Automatic Production Line of Battery Tray:
       
      Relying on the technical research and development strength in the existing field, Shanghai Jun Yi focuses on expanding the technical research and development of battery tray production equipment, downstream process of the power battery assembly line. Through the introduction of rich experience in the field of automobile production equipment into the field of battery tray production, the traditional battery tray production is mainly based on a single automatic production workstation. Through technological development, technological transformation, technological upgrading and other breakthroughs, the core technology in the field of intelligent battery tray production has been mastered and has been applied to the production of high-end automobile brand new energy battery trays.
       

       

       

    New Energy Equipment Dept:

     

    As the core of new energy vehicles, power batteries have always been the focus of wide attention in the industry. As early as 2013, Jun Yi took the lead in studying solutions for automatic production of power batteries with the most famous battery manufacturers in China. Taking advantage of its own technological advantages in the field of robot automation integration and through years of in-depth research on battery technology, it has now achieved many technological breakthroughs and obtained more than 40 independent intellectual property patents, which has established Jun Yi's leading position in the power battery automation equipment industry. The battery intelligent equipment business now accounts for more than 40% of the company's total turnover and has become a powerful driving engine for Jun Yi's growth.

     

    The new energy business of Shanghai Jun Yi is currently focused on the research and development and promotion of power battery modules, PACK automatic assembly lines and full-automatic welding lines for PACK boxes.

     

    From the application products, it covers passenger vehicle battery packs, commercial vehicle battery packs, energy storage battery packs, soft pack modules and many other new energy battery products.

     

    From the application process, it covers cell separating, plasma cleaning, laser cleaning, cell coating, two-component precision gluing, charge and discharge testing, battery module assembly, CMT welding, laser welding, module intelligent storage, AGV transfer system, workshop MES system, aluminum alloy box, friction stir welding system and other key technologies.

     

    The fully automated module production line provided by Jun Yi can realize the compatible production of various battery modules through fast switching technology.

     

    1.Full product coverage:

     

    Cell Module Tray PACK
           
           

       

     2.High automatic core production:

     

     

    Fully automatic module line

     

    Semi-Automatic PACK Line

    New Energy Equipment Dept.
  • Universal Industrial Equipment Dept. Universal Industrial Equipment Dept. Universal Industrial Equipment Dept.
    • Robot application 01 Robot application 01
       
    • Robot application 01 Robot application 01
       
    General Industrial Intelligence Service:
     
    Shanghai Jun Yi has been deeply engaged in the field of industrial automation for many years. Relying on its engineering experience in automated logistics lines, assembly lines, welding lines and other fields, it has focused on low automation and labor-intensive industries, from tobacco and alcohol manufacturing to medical devices, from engineering machinery to water conservancy and military industry, providing one-stop services for consultation, design, development and installation, and customizing personalized digital workshop solutions for enterprises.
     
    At the same time, Jun Yi has established a laser technology center since 2013. After years of engineering practice, the four major technologies of laser cleaning, laser cutting, laser welding and laser cladding have been widely applied to customer production.
     
    The "Jun Yi-Jiaotong University Joint Welding Laboratory" established in 2016 in cooperation with Shanghai Jiaotong University. The two sides, relying on the joint laboratory and taking project cooperation as a link, have done a great deal of basic research on the processing and connection technology between different materials such as aluminum alloy and carbon fiber, and various technologies such as surface modification, laser welding, ultrasonic welding, electromagnetic induction welding and friction stir welding have been successfully applied to customer sites.
    Universal Industrial Equipment Dept.
  • Application of New Technologies. Application of New Technologies. Application of New Technologies.
    • Virtual Commission technology Virtual Commission technology
      Virtual Commission Technology:
       
      Virtual Commission technology is one of the emerging technologies in the field of automation integration technology. Its advantage lies in combining simulation with control technology, compressing and advancing the production and manufacturing process in a virtual environment, and being verified and optimized, which is beneficial to the process verification and design modification before the equipment is materialized.
       
      Since 2016, Shanghai Jun Yi has been carrying out virtual Commission of integration projects in body welding, new energy equipment and general industry. By combining 3D modeling, production line simulation, off-line programming and logic coordination of PLC programs in a virtual environment, problems can be found and optimal solutions can be proposed before project integration, and at the same time, the debugging time of the project site can be saved by nearly 1/3.
       
    • Plant logistics simulation technology Plant logistics simulation technology
      Plant Logistics Simulation Technology:
       
      Digitalized bodyshop is a new organizational form that simulates, evaluates, optimizes, and further extends to the whole product production and manufacturing process life cycle through virtual environment.
       
      Through the logistics simulation of the whole bodyshop, we can optimize the process flow of field equipment and personnel, improve the running status of the factory and improve the efficiency of factory planning.
       
      Through the factory logistics simulation technology, we can obtain the bottleneck of the line production capacity in the workshop more intuitively and in detail in the early stage, and increase the in-line-buffer through the optimization scheme to improve the line start-up rate and increase the CT.

       
    • Advanced manufacturing technology Advanced manufacturing technology
      Advanced Manufacturing Technology:
       
      The "Jun Yi-Jiaotong University Joint Welding Laboratory" was established in 2016 in cooperation with Shanghai Jiaotong University. The two sides, relying on the joint laboratory and taking project cooperation as a link, have done a great deal of basic research on the processing and connection technology between different materials such as aluminum alloy and carbon fiber, and various technologies such as surface modification, laser welding, ultrasonic welding, electromagnetic induction welding and friction stir welding have been successfully applied to customer sites.
       
    • Laser application technology Laser application technology
      Laser Application Technology:
       
      Jun Yi has established a laser technology center since 2013. After many years of engineering practice, four major technologies of laser cleaning, laser cutting, laser welding and laser cladding have been widely applied to customer production.
       

       

      Laser Technology Center




      Tailgate laser brazing

      Water-pump laser welding

      Battery module remote welding

       

       
    • AGV intelligent logistics technology AGV intelligent logistics technology
      AGV Intelligent Logistics Technology:
       
      Automatic guided vehicle (AGV) transportation system has great advantages in logistics transportation. It plays a direct or indirect role in reducing production and operation costs, reducing labor intensity, improving automation level, improving production safety and product quality.
       
      In the field of automobile manufacturing, the AGV is applied to the fields of welding, assembly and parts.
       
      In the field of new energy manufacturing, AGV is applied to the whole manufacturing chain of cells, modules and PACK lines.
       
      The application of AGV provides a very good solution for automation and manpower-saving in the manufacture of automobiles, batteries and a wide range of parts, and realizes standardized and punctual workshop logistics distribution in production control.
       

       

     

    Application of New Technologies.
  • Engineering Cases Engineering Cases Engineering Cases
    • Automobile Equipment
      • Body Welding Body Welding

        Body Welding


                 Thread

        Main line (Framing Station)

        Side wall

        floor

        engine room

        Door cover

         

         
        Body Welding
      • Parts weldment Parts weldment
        • A&B column welding A&B column welding A&B column welding

           

                 
                 

           

           
          A&B column welding
        • Chassis welding line Chassis welding line Chassis welding line

           

             
                 
                 

           

           
          Chassis welding line
        • Longitudinal beam welding line Longitudinal beam welding line Longitudinal beam welding line

           

             
                 
                 

           

           
          Longitudinal beam welding line
        • Supercharger Supercharger Supercharger

           

             
                 
                 

           

           
          Supercharger
        • Steering column Steering column Steering column

           

             
                 
                 

           

           
          Steering column
        • Window frame Window frame Window frame

           

             
                 
                 

           

           
          Window frame

        Parts weldment


                A&B column welding 

        Floor welding

        Other

         

         
        Parts weldment
      • Door hemming Door hemming
         

      tomotive Equipment


                 Body Welding

      Welding of parts

      Door trim

       

       
    • Power battery equipment

      Power battery equipment


                Module assembly line

      Pack assembly line

      Battery tray production line

       

       
    • Application of laser technology Application of laser technology

       

       

       
    • General industrial intelligent equipment General industrial intelligent equipment
       
    Engineering Cases

Tel: 021-50326815

E-mail: info@junyi-auto.com
Add: 885 Zhangjing Road, Dongjing Town, Songjiang District, Shanghai

Copyright © 2003-2018 http://www.junyi-auto.cn, All Rights Reserved