Backdoor electrophoresis carrier

Abstract

The invention discloses a back door electrophoresis carrier and relates to the technical field of automobile component tools, the back door electrophoresis carrier comprises a base, a fixing mechanism and a positioning mechanism, the fixing mechanism comprises a supporting frame arranged at a machining station and a hinge piece arranged at the top of the supporting frame, the hinge piece can rotate in the horizontal axial direction, and the positioning mechanism is arranged on the base. The hinge piece is used for being hinged to the upper end of the back door, the positioning mechanism comprises an abutting piece arranged below the supporting frame, the abutting piece extends in the first horizontal direction, and the abutting end of the abutting piece is used for abutting against the lower end of the back door. The upper end of the back door is fixed through the fixing mechanism so as to limit parallel movement of the back door, meanwhile, the back door can rotate so as to facilitate follow-up spraying machining, meanwhile, the position of the back door during electrophoresis machining is limited through the positioning mechanism so as to guarantee that electrophoresis machining of the back door can be smoothly completed, and then the stability of the back door in the machining process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component tooling, and in particular to a rear door electrophoresis carrier. Background Art

[0002] Currently, in the automobile manufacturing process, the tailgate is usually assembled to the vehicle body (i.e., body-in-white) in the welding workshop. Subsequently, the body-in-white assembly with four doors and two lids needs to be electrophoretically treated before the whole vehicle is assembled in the final assembly workshop.

[0003] During the electrophoretic treatment of the tailgate, when the length of the vehicle body exceeds the hard point limit of the electrophoretic tank of the painting factory, the factory hard point needs to be modified. If the factory hard point needs to be modified, a lot of money and time costs are required. At the same time, the tailgate cannot be electrophoretically treated alone, and the electrophoretic process will be affected by the vehicle body, making it impossible to complete the electrophoretic treatment of the tailgate. Summary of the invention

[0004] The main purpose of the present invention is to provide a tailgate electrophoresis carrier, which is intended to allow the tailgate to be electrophoretically treated independently while the electrophoresis process is not affected by the vehicle body.

[0005] To achieve the above object, the back-gate electrophoresis carrier proposed in the present invention comprises:

[0006] The base has processing stations arranged thereon:

[0007] A fixing mechanism, comprising a support frame arranged at the processing station, and a hinged member arranged at the top of the support frame, wherein the hinged member can rotate around a horizontal axis, and the hinged member is used to hinge the upper end of the back door: and,

[0008] The positioning mechanism comprises an abutment member arranged below the support frame, and the abutment member is extended along a first horizontal direction, and the abutment end thereof is used to abut against the lower end of the back door.

[0009] Preferably, the abutment member can be movably arranged along the horizontal direction.

[0010] Preferably, the positioning mechanism further comprises a support member disposed below the support frame, and the abutment member comprises a bolt threadedly connected to the support member.

[0011] Preferably, a buffer is provided at the free end of the bolt.

[0012] Preferably, the support member is fixed to the base.

[0013] Preferably, the support frame comprises a support rod and a frame body located above the support rod, a plurality of hinges are arranged on the frame body, and the plurality of hinges are relatively arranged on two sides of the support rod.

[0014] Preferably, a plurality of the positioning mechanisms are provided, and the plurality of positioning mechanisms are relatively arranged on two sides of the support rod.

[0015] Preferably, at least one group of the processing stations is arranged on the base, each group of the processing stations includes two processing stations spaced apart in the first horizontal direction, and the hinges on the support frame at the two processing stations are arranged away from each other.

[0016] Preferably, the processing stations are arranged in a plurality of groups, and the plurality of groups of processing stations are arranged at intervals along the second horizontal direction.

[0017] Preferably, the hinge includes a first hinge part and a second hinge part which are rotatably connected, the first hinge part is fixed to a support frame, a fixing plate is provided at the free end of the second hinge part, and the fixing plate is extended laterally along the second hinge part to form fixing parts which are relatively arranged on both sides of the second hinge part, and the fixing parts are used to correspond to the fixing holes of the back door.

[0018] In the technical solution provided by the present invention, the fixing mechanism includes a support frame arranged at the processing station, and a hinge arranged at the top of the support frame, the hinge can rotate around a horizontal axis, and the hinge is used to hinge the upper end of the back door, the positioning mechanism includes an abutment member arranged below the support frame, and the abutment member is extended along a first horizontal direction, and the abutment end is used to abut against the lower end of the back door, the upper end of the back door is fixed by the fixing mechanism to limit the parallel movement of the back door, and at the same time, the back door can be rotated to facilitate subsequent spraying processing, and at the same time, the position of the back door during electrophoresis processing is limited by the positioning mechanism to ensure that the back door successfully completes the electrophoresis processing, thereby ensuring the stability of the back door during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A three-dimensional schematic diagram of an embodiment of a back-door electrophoresis carrier provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the fixing mechanism;

[0022] Figure 3 for Figure 1 The structural diagram of the positioning mechanism;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the hinge.

[0024] Description of Figure Numbers:

[0025] 1. Base; 2. Fixing mechanism; 21. Articulated member; 211. First articulated portion; 212. Second articulated portion; 213. Fixing plate; 22. Support frame; 221. Support rod; 222. Frame body; 3. Positioning mechanism; 31. Support member; 32. Abutting member; 33. Bolt; 34. Buffer member.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The present invention provides a back-door electrophoresis carrier. Figures 1 to 4 This is an embodiment of the back-door electrophoresis carrier provided by the present invention.

[0031] Electrophoretic processing is a surface treatment technology. It immerses the workpiece in an electrophoretic liquid containing paint and applies a DC electric field so that the paint particles are evenly coated on the surface of the workpiece under the action of the electric field to form a uniform and dense protective film. In order to ensure the stability of the back door during the electrophoretic processing, the present invention provides a structure that can ensure the stable positioning of the back door during the processing.

[0032] Please also read Figures 1 to 3 The back door electrophoresis carrier includes a base 1, a fixing mechanism 2 and a positioning mechanism 3, wherein the fixing mechanism 2 includes a support frame 22 arranged at the processing station, and a hinge 21 arranged at the top of the support frame 22, the hinge 21 can rotate around a horizontal axis, and the hinge 21 is used to hinge the upper end of the back door, the positioning mechanism 3 includes an abutment 32 arranged below the support frame 22, and the abutment 32 extends along the first horizontal direction, and its abutment end is used to abut against the lower end of the back door.

[0033] The function of the fixing mechanism 2 is to ensure that the back door remains stable during the processing. It includes a support frame 22 set at the processing station and a hinge 21 installed on the top of the support frame 22. The hinge 21 can rotate freely around the horizontal axis. In this way, the hinge 21 can be flexibly connected to the upper end of the back door, so that the back door can perform limited rotational movement around the horizontal axis of the hinge 21 in the processing station. The positioning mechanism 3 is responsible for ensuring the accuracy of the position of the back door after it is fixed. It includes an abutment 32 set below the support frame 22. The abutment 32 extends along the first horizontal direction, and its front end is designed with an abutment surface for close contact with the lower end of the back door. When the back door is placed in the processing station, its upper end is first connected to the hinge 21, so that the back door can only perform limited rotation in the horizontal axis direction of the hinge 21. Subsequently, the operator or mechanical device rotates the lower end of the back door toward the support frame 22 until the lower end of the back door contacts the abutment surface of the abutment 32. Due to the gravity of the back door itself, it will continue to rotate downward, but due to the obstruction of the abutment 32, the back door cannot continue to rotate, thereby achieving accurate positioning of the back door placement. This design ensures that the back door can be kept in a fixed and precise position during the electrophoretic processing, which is crucial to the uniformity and quality of the electrophoretic coating. After the electrophoretic processing is completed, in order to carry out the subsequent spraying processing, the robot will drive the back door to rotate to an appropriate angle so that the spraying equipment can spray the paint evenly, thereby completing the entire back door surface treatment process. The design of the entire carrier fully considers the convenience of operation, the accuracy of processing and the efficiency of production, and is an indispensable part of the automobile manufacturing industry.

[0034] Therefore, in the technical solution provided by the present invention, the fixing mechanism 2 includes a support frame 22 arranged at the processing station, and a hinge 21 arranged at the top of the support frame 22, the hinge 21 can rotate around a horizontal axis, and the hinge 21 is used to hinge the upper end of the back door, the positioning mechanism 3 includes an abutment 32 arranged below the support frame 22, and the abutment 32 is extended along a first horizontal direction, and the abutment end is used to abut against the lower end of the back door, the upper end of the back door is fixed by the fixing mechanism 2 to limit the parallel movement of the back door, and the back door can be rotated to facilitate subsequent spraying processing, and the positioning mechanism 3 is used to limit the position of the back door during electrophoresis processing to ensure that the back door successfully completes the electrophoresis processing, thereby ensuring the stability of the back door during the processing.

[0035] In the automobile manufacturing process, the tailgate sizes of different models of automobiles vary. These size differences require the tailgate to be fixed in a specific position before electrophoresis treatment. Electrophoresis is a coating process that immerses automobile parts in a bath containing paint so that the paint is evenly covered on the surface of the parts to achieve corrosion protection and aesthetic effects. Due to the diversity of tailgate sizes, the tailgate needs to be accurately positioned to ensure the smooth progress of the electrophoresis process.

[0036] In order to adapt to the positioning requirements of back doors of different sizes, the present invention proposes an innovative positioning device, namely, an abutment member 32. The design of the abutment member 32 allows it to move in the horizontal direction so as to be able to flexibly adapt to back doors of various sizes. The abutment member 32 contacts the back door through the abutment end at one end thereof, thereby achieving the positioning of the back door. This design enables the back door to be accurately positioned at the appropriate position in the electrophoresis tank regardless of its size.

[0037] Specifically, the movable setting of the abutment member 32 enables it to be adjusted according to the specific size and shape of the tailgate, ensuring that the tailgate can be firmly fixed in a predetermined position before electrophoresis. This positioning method not only improves production efficiency, but also ensures the quality of electrophoretic coating, because the accurate position of the tailgate is crucial to the uniformity and integrity of the coating. Through this design, it can be ensured that the tailgates of different models of cars can be properly handled, thereby meeting the high standards required for automobile manufacturing.

[0038] Another major advantage of the positioning device is that it is easy to maintain and replace. Since the abutment 32 is movable, when adjustment or replacement is required, the operator can operate quickly and conveniently without complicated disassembly and installation steps, which not only saves time but also reduces maintenance costs. In addition, the design of the abutment 32 fully considers durability and stability. It is made of high-quality materials and can withstand various stresses and impacts during the electrophoresis process to ensure long-term reliability and safety. It is worth noting that the positioning device also has the potential for intelligence. By combining advanced sensors and control systems, it can realize real-time monitoring and automatic adjustment of the back door position, further improving the accuracy and efficiency of positioning. For example, a position sensor can be installed on the abutment 32 to monitor its contact state with the back door in real time. When the position is found to be offset, the adjustment mechanism is automatically triggered to ensure that the back door is always in the best position. This intelligent design will further improve the level of automation in the automobile manufacturing process and reduce the risk and error of human operation.

[0039] Furthermore, the positioning mechanism 3 further includes a support member 31 disposed below the support frame 22 , and the abutment member 32 includes a bolt 33 threadedly connected to the support member 31 .

[0040] When the back door begins to rotate downward under the action of gravity until it contacts and is supported by the abutment 32, a certain dimensional error is inevitably present during the manufacturing process of the back door, which leads to a problem: after the back door is fully fitted with the contact end of one of the abutments 32, the contact ends of one or more other abutments 32 cannot be in close contact with the back door. This incomplete contact causes the back door to shake when supported, thereby affecting the stability of the back door during the electrophoretic processing. To solve this problem, we have specially designed an adjustable bolt 33 structure on the support member 31. By rotating these bolts 33, the total length of the abutment 32 can be accurately adjusted. When the contact ends of all the abutments 32 are evenly against the back door and the back door no longer shakes, it can be ensured that the back door remains stable during the electrophoretic processing, thereby ensuring the processing quality.

[0041] In order to ensure the stability and durability of the adjustable bolt 33 structure, we use high-strength alloy material to make bolt 33, and through precise processing technology, the surface of bolt 33 is smooth and the thread is clear, which effectively reduces the wear caused by friction. In addition, we also designed an anti-slip texture on the head of bolt 33 so that bolt 33 can be easily rotated during the adjustment process, while avoiding accidental adjustment caused by hand slippage.

[0042] In actual application, the operator only needs to simply screw the bolt 33 in or out to fine-tune the total length of the abutment 32 according to the actual size and shape of the back door. This fine-tuning process is not only fast and convenient, but also can ensure the accuracy of the adjustment result, thereby greatly improving the stability and efficiency of the electrophoretic processing.

[0043] At the same time, we also equipped this adjustable bolt 33 structure with a special tool kit, including wrenches, screwdrivers and other necessary tools, so that the operator can make adjustments and maintenance more conveniently. Through these measures, we have successfully solved the stability problem caused by the shaking of the back door during the electrophoretic processing, and made a positive contribution to the development of the electrophoretic processing industry.

[0044] In further structural design, a buffer 34 is specially configured at the free end of the bolt 33. The so-called free end refers to the end of the bolt 33 that contacts the back door. Since the bolt 33 is usually made of metal material, during its rotation, the end that contacts the back door may cause a certain degree of wear on the surface of the back door, which may have an adverse effect on the subsequent processing quality of the door. Therefore, in order to prevent this from happening, the designer adds a buffer 34 to the end of the bolt 33 that contacts the back door. These buffers 34 are usually made of soft materials such as rubber. Their function is to prevent the bolt 33 from directly contacting the back door when the bolt 33 rotates, thereby effectively preventing wear on the surface of the back door. In this way, the buffer 34 not only protects the integrity of the back door, but also ensures that the quality of the back door in the subsequent processing flow is not affected, thereby improving the overall production efficiency and product quality.

[0045] In order to ensure that the abutment 32 can maintain good adaptability when cooperating with different back doors and avoid the quality degradation after electrophoresis processing due to slight dimensional errors, the present invention specially designs a first horizontal direction movable setting for the abutment 32 to press. This design allows the abutment 32 to perform a certain movement in the horizontal direction to adapt to back doors of various sizes and shapes, ensuring stable contact during the electrophoresis processing, thereby ensuring the processing quality.

[0046] However, in order to prevent the abutment member 32 from moving in the vertical direction, the present invention particularly emphasizes the role of the support member 31 in the fixing mechanism 2. The support member 31 is fixed on the base 1 to ensure that it can stably maintain a preset position when the back door is fixed to prevent any movement in the vertical direction. This is because once the abutment member 32 moves in the vertical direction, the abutment position will be offset, thereby making the originally preset abutment point vacant. This offset will not only cause the placement position of the back door to become unstable, but also during electrophoresis processing, the shaking of the back door will directly affect the processing quality.

[0047] Therefore, in the technical solution of the present invention, the fixing function of the support member 31 is very important. It not only ensures the appropriate movement of the abutment member 32 in the horizontal direction to adapt to the needs of different back doors, but also ensures the stability in the vertical direction, preventing any deviation that may lead to a decrease in processing quality. Through this design, the accuracy and quality of electrophoresis processing can be effectively improved, ensuring that the quality of the final product meets high standards.

[0048] The weight of the back door is usually considerable, so when designing the support frame 22, it must be considered that it can bear the entire weight of the back door to ensure that the back door can rotate stably. In a specific embodiment of the present invention, the design of the support frame 22 includes a support rod 221 and a frame body 222 structure located above the support rod 221. In order to improve the fixing stability of the upper end of the back door and reduce shaking, the present design sets a plurality of hinges 21 on the frame body 222. These hinges 21 are relatively arranged on both sides of the support rod 221. Through such a layout, multiple positions of the upper end of the back door can be connected, so that the upper end of the back door is fixed more firmly and is not prone to shaking.

[0049] In addition, in order to further enhance the stability of the upper end of the back door, the multiple hinges 21 respectively arranged on both sides of the support rod 221 can be symmetrically arranged. This symmetrical layout not only allows the upper end of the back door to be more stably fixed at the processing station after being connected by the hinges 21, but also ensures that the back door will not shake in the horizontal direction during the rotation process. Such a design is crucial to ensure that the back door can be stably placed in a suitable position, and also improves the reliability and service life of the entire device. Through this design, the weight of the back door can be effectively dispersed, reducing the pressure on a single hinge 21, thereby improving the stability and durability of the entire support frame 22 system.

[0050] Furthermore, considering the stress conditions of the tailgate under different working conditions, we can optimize the material and structure of the hinge 21. For example, the hinge 21 made of high-strength alloy material can not only withstand a larger load, but also maintain good mechanical properties in harsh environments. At the same time, the connecting part of the hinge 21 is finely processed to ensure a tight and flexible connection, so as to reduce performance degradation caused by friction and wear.

[0051] In addition, in order to further enhance the user experience and ease of operation, we can also set an adjustment mechanism on the support rod 221, allowing the user to adjust the opening angle and position of the back door according to actual needs. This humanized design not only improves the flexibility and adaptability of the equipment, but also makes the operation simpler and more intuitive, lowering the threshold for use.

[0052] To sum up, by symmetrically setting the hinges 21, optimizing the material and structure of the hinges 21, and adding adjustment mechanisms, we can significantly improve the stability and durability of the back door support frame 22 system, while improving user experience and operational convenience. Such a design not only meets the basic functional requirements of the equipment, but also fully considers the user's usage habits and actual needs, providing a strong guarantee for the product's market competitiveness.

[0053] In order to ensure the stability of the lower end of the back door during the electrophoretic processing, a single positioning mechanism 3 must be precisely installed in the middle position of the lower end of the back door. However, even so, there is still a possibility of shaking on both sides of the lower end of the back door, which may interfere with the smooth progress of the electrophoretic processing and thus affect the processing quality. Therefore, it is not enough to rely solely on one positioning mechanism 3. In one embodiment of the present invention, in order to solve this problem, a plurality of positioning mechanisms 3 are designed. These positioning mechanisms 3 are cleverly distributed on both sides of the support rod 221 to achieve a symmetrical layout. Through this design, both sides of the lower end of the back door can be effectively supported and stabilized by the abutment 32, so as to remain stable during the electrophoretic processing and ensure that the processing quality of the final product is not affected. This design not only improves the processing stability, but also optimizes the processing efficiency and product quality.

[0054] In order to effectively improve the production efficiency of electrophoretic processing of back doors, the key is to increase the number of back doors in a single electrophoretic processing process. Therefore, when designing the base 1, we adopted a strategy of setting multiple processing stations on the base 1. In order to ensure the stability of the back door during the electrophoretic processing, we specially designed a structure in which the processing stations appear in pairs. This can ensure that when the back door is fixed on the processing station, it can be stably electrophoretically processed. Specifically, in one embodiment of the present invention, at least one group of processing stations is provided on the base 1, and each group of processing stations includes two processing stations spaced apart in a first horizontal direction. The two processing stations are respectively located on the support frame 22, and the hinge 21 is arranged on the support frame 22 in a divergent manner. Such a design not only improves the production efficiency, but also ensures the stability and consistency of the processing process, thereby ensuring the quality and efficiency of the electrophoretic processing.

[0055] In order to further improve the automation level of the electrophoretic processing back door, we can also incorporate an intelligent control system into the design. The system can monitor the operating status of each processing station in real time, including the positioning accuracy of the back door, the concentration of the electrophoretic fluid, the temperature and other key parameters. Once an abnormal situation is found, the early warning mechanism is immediately activated and automatically adjusted to the optimal working state. This intelligent design not only reduces the need for manual intervention, but also greatly reduces the processing quality problems caused by human operational errors.

[0056] In further detailed description, it can be pointed out that these processing stations are designed to have multiple groups, each group contains several processing stations, these processing stations do not exist alone, but are arranged in groups, and each group of processing stations is arranged in an orderly interval according to the second horizontal direction, ensuring the continuity and efficiency of the production process. This layout method not only helps to improve the flexibility of the production process, but also enables the connection between the various processes on the production line to be smoother, thereby optimizing the overall production efficiency and product quality. Through this interval setting, refined management of the production process can be achieved, and it also provides convenience for subsequent maintenance and upgrades.

[0057] In addition, each group of processing stations has been carefully planned, and an appropriate working distance is maintained between each station, which not only ensures that operators have enough space to work, but also avoids mutual interference caused by too close distance, ensuring the safety and accuracy of operation. Each station is equipped with advanced processing equipment and testing equipment, which can monitor various parameters in the production process in real time to ensure stable and reliable product quality. At the same time, these equipment also has a high level of automation and intelligence, and can automatically complete processing tasks according to preset programs, greatly reducing the labor intensity of operators and improving production efficiency.

[0058] In addition, this layout of multiple processing stations also fully considers the scalability of the production line. With the expansion of production scale and the increase of product types, new processing stations or groups can be flexibly added on the existing basis to meet the changes in production needs. This flexibility and scalability enables the production line to quickly adapt to market changes and maintain the competitiveness of the enterprise.

[0059] In summary, this processing station design with multiple groups and layout in groups not only improves the continuity and efficiency of the production process, but also optimizes production efficiency and product quality. At the same time, it has high flexibility and scalability, and is an indispensable and important part of modern industrial production.

[0060] See also Figure 4 The connection method between the hinge 21 and the upper end of the back door ensures the positioning of the back door in the processing station. This design not only allows the back door to rotate with the help of the hinge 21, but also the direction of rotation is completely determined by the freely rotatable part of the hinge. In order to ensure that the lower end of the back door can be accurately abutted by the abutment 32 after the back door is flipped downward, the setting direction of the hinge 21 is precisely limited.

[0061] In a specific embodiment of the present invention, the hinge 21 includes two main parts: a first hinge part 211 and a second hinge part 212. The first hinge part 211 is fixedly connected to the support frame 22, and it provides stable support for the entire hinge 21. The second hinge part 212 has a free end, and a fixing plate 213 is provided on the free end. The fixing plate 213 extends along the side of the second hinge part 212, thereby forming relatively arranged fixing parts on both sides of the second hinge part 212, and these fixing parts are designed to correspond to the fixing holes on the tailgate.

[0062] In actual applications, the fixing portion of the hinge needs to be set corresponding to the position on the back door for installing the hinge. In this way, the hinge can be firmly fixed to the back door by passing the fixing portion through the fixing hole on the back door and then fixing it with fasteners such as screws. This design not only ensures a firm connection between the hinge 21 and the back door, but also ensures the stability and reliability of the back door during rotation. In this way, the positioning and rotation functions of the back door in the processing station are effectively realized, and also provides the necessary structural support for the stable flipping of the back door.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A back-door electrophoresis carrier, characterized in that: include: The base has processing stations arranged thereon: A fixing mechanism, comprising a support frame arranged at the processing station, and a hinged member arranged at the top of the support frame, wherein the hinged member can rotate around a horizontal axis, and the hinged member is used to hinge the upper end of the back door: and, The positioning mechanism comprises an abutment member arranged below the support frame, and the abutment member is extended along a first horizontal direction, and the abutment end thereof is used to abut against the lower end of the back door.

2. The back-door electrophoresis carrier according to claim 1, characterized in that: The abutment member can be movably arranged along the horizontal direction.

3. The back-door electrophoresis carrier according to claim 1, characterized in that: The positioning mechanism also includes a support member arranged below the support frame, and the abutment member includes a bolt threadedly connected to the support member.

4. The back-door electrophoresis carrier according to claim 3, characterized in that: A buffer is arranged at the free end of the bolt.

5. The back-door electrophoresis carrier according to claim 1, characterized in that: The support member is fixed on the base.

6. The back-door electrophoresis carrier according to claim 1, characterized in that: The support frame comprises a support rod and a frame body located above the support rod. A plurality of hinges are arranged on the frame body, and the plurality of hinges are relatively arranged on two sides of the support rod.

7. The back-door electrophoresis carrier according to claim 1, characterized in that: A plurality of positioning mechanisms are provided, and the plurality of positioning mechanisms are relatively arranged on two sides of the support rod.

8. The back-door electrophoresis carrier according to claim 1, characterized in that: At least one group of the processing stations is arranged on the base, each group of the processing stations comprises two processing stations spaced apart in a first horizontal direction, and the hinges on the support frame at the two processing stations are arranged in opposition to each other.

9. The back-door electrophoresis carrier according to claim 8, characterized in that: The processing stations are arranged in multiple groups, and the multiple groups of processing stations are arranged at intervals along the second horizontal direction.

10. The back-door electrophoresis carrier according to claim 8, characterized in that: The hinged member includes a first hinged portion and a second hinged portion which are rotatably connected. The first hinged portion is fixed to a support frame. A fixing plate is provided at the free end of the second hinged portion, and the fixing plate is extended laterally along the second hinged portion to form fixing portions which are relatively arranged on both sides of the second hinged portion, and the fixing portions are used to correspond to the fixing holes of the back door.

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