Electrophoretic jig for front engine bonnet

Abstract

The application relates to the technical field of tooling, and discloses an electrophoresis tooling for a front engine hood, which comprises a tooling body, a fixing rod and a fixing pin; the tooling body is fixed to a vehicle frame body; along the length direction of the fixing rod, the fixing rod is provided with oppositely arranged first and second ends, and the first end is suitable for fixing the front engine hood; at least part of the fixing pin is vertically arranged in the second end and the tooling body, so that the second end is movable relative to the tooling body. The electrophoresis tooling improves the use convenience.

Description

Technical Field

[0001] This application relates to the field of tooling technology, and in particular to an electrophoresis tooling for a front engine hood. Background Technology

[0002] In the automotive manufacturing industry, to ensure the corrosion and rust prevention of car bodies, all car manufacturers perform electrophoresis on the car bodies to guarantee their corrosion resistance. The electrophoresis process involves 15 process tanks in the pretreatment and electrophoresis stages. The car body must be immersed in these tanks for cleaning and electrophoresis operations. During this process, the car body doors and hoods must be secured to prevent them from colliding with the equipment when opened.

[0003] In related technologies, electrophoresis fixtures are difficult to adjust. Therefore, how to improve the ease of use of electrophoresis fixtures is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This application provides an electrophoresis fixture for the front engine hood, which improves ease of use.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide an electrophoresis fixture for a front hood, comprising a fixture body, a fixing rod, and a fixing pin: the fixture body is fixed to the vehicle frame body; along the length direction of the fixing rod, the fixing rod has a first end and a second end disposed opposite to each other, the first end being adapted to fix the front hood; at least a portion of the fixing pin passes through the second end and the fixture body in a vertical direction, so that the second end is movable relative to the fixture body.

[0007] The electrophoresis fixture for the front hood proposed in this application embodiment has a fixing pin that passes vertically through the second end and the fixture body, allowing the second end of the fixing rod to move or rotate slightly relative to the fixture body in the vertical direction. This design, on the one hand, can achieve connection and limitation between the second end and the fixture body through the rigidity of the pin itself, improving the connection firmness and minimizing the shaking range of the front hood during electrophoresis, thus preventing excessive displacement. On the other hand, it facilitates installation, allowing the electrophoresis fixture to be adjusted to a certain extent, thereby improving the ease of use of the electrophoresis fixture.

[0008] Optionally, the retaining pin is constructed as a ring-shaped component with its ends connected.

[0009] In the above solution, the annular fixing pin passes through the second end of the fixing rod and the main body of the tooling, which can limit the movement from multiple directions, thereby resisting the axial tension caused by rotation and ensuring that it will not fall off under extreme postures such as vehicle body rollover or inversion. This avoids the failure of the fixing effect of the electrophoresis tooling, which may lead to the displacement of the front hood, further improving the firmness of the component support and fixing. At the same time, it is convenient to install, allowing the electrophoresis tooling to be adjusted to a certain extent, thus improving the ease of use of the electrophoresis tooling.

[0010] Optionally, the fixing pin includes a pin head and a pin rod. In the vertical direction, the pin rod is located at the lower end of the pin head and extends downwards. The pin rod passes through the second end and the tooling body.

[0011] In the above scheme, after the pin is inserted into the second end of the fixing rod and the main body of the tooling, the pin head will abut against the upper surface of the second end of the fixing rod, forming the upper limit position in the vertical direction. This prevents the fixing pin from completely falling out of the hole due to gravity or centrifugal force when the vehicle body rotates, avoids excessive movement of the hood, reduces the hood's sway range, and improves the hood's support and fixation. At the same time, it allows the second end of the fixing rod to move or rotate slightly in the vertical direction relative to the main body of the tooling, enabling the electrophoresis tooling to be adjusted to a certain extent, facilitating installation and improving the ease of use of the electrophoresis tooling.

[0012] Optionally, the tooling body includes a first plate portion, the thickness direction of the first plate portion is parallel to the vertical direction, the second end is disposed on the upper end surface of the first plate portion, the first plate portion has a first fixing hole, the first fixing hole penetrates the first plate portion in the vertical direction, the second end has a second fixing hole, and a fixing pin is disposed in the first fixing hole and the second fixing hole.

[0013] In the above scheme, the fixing pin passes through both the first fixing hole of the fixture body and the second fixing hole of the second end of the fixing rod. This not only restricts excessive movement of the second end of the fixing rod, preventing the workpiece from shaking significantly and improving the support stability, but also enables small vertical adjustments, improving installation convenience.

[0014] Optionally, the fixing pin includes a first segment, a second segment, and a third segment connected together. The first segment and the third segment are located at both ends of the second segment and extend in the same direction in the horizontal direction. The second segment passes through a first fixing hole and a second fixing hole.

[0015] In the above solution, the first and third sections work together to limit the movement, preventing the fixing pin from being completely pulled out of the hole in the vertical direction. When the fixing pin is pulled downwards, the first section is blocked by the upper surface of the second end of the fixing rod; when pulled upwards, the third section is blocked by the lower surface of the first plate. This design can resist centrifugal force or gravity in any direction when the vehicle body rotates 360 degrees, ensuring that the fixing pin always remains in the inserted position. This avoids the hood from shaking significantly or even failing to fix due to the fixing pin falling off. At the same time, it ensures that the second end of the fixing rod has a certain displacement space, making it more practical, easy to install, and improving ease of use.

[0016] Optionally, the fixing pin also includes a fourth segment, which extends vertically. One end of the fourth segment in the vertical direction is connected to the free end of the first segment, and the other end of the fourth segment in the vertical direction is spaced apart from the free end of the third segment.

[0017] In the above scheme, the first, second, third and fourth sections form a structure similar to a rectangular frame. When the vehicle body rotates 360 degrees and generates torsional force or lateral impact force, the frame structure can disperse stress through overall force distribution, further improving the robustness and further reducing the sway of the front hood, thus improving reliability.

[0018] Optionally, the tooling body includes a second plate portion, which is fixed to the first plate portion. The thickness direction of the second plate portion is parallel to the horizontal direction, and the second plate portion has multiple first mounting positions for fixing the frame body.

[0019] In the above scheme, the second plate is arranged vertically and can form an L-shaped structure with the first plate. It plays a supporting and fixing role in different directions with the first plate. On the one hand, it is easy to adapt to different vehicle models. On the other hand, the structure is simple, easy to install and fix, and has high reliability. At the same time, the first mounting position can be used to fix the electrophoresis fixture to the main body of the vehicle frame, which helps to improve the firmness of the fixture installation, thereby helping to ensure that the front hood is firmly supported and fixed.

[0020] Optionally, the second plate also has a second mounting position for securing the charging cover.

[0021] In the above solution, the charging cover can be fixed to the second plate through the second mounting position. This configuration allows the charging cover to be electrophoretically coated together with the car body, further improving the versatility of the electrophoresis fixture and helping to improve production efficiency.

[0022] Optionally, the first mounting position is configured as a third fixing hole, and the third fixing hole is configured as an oblong hole.

[0023] In the above solution, the waist-shaped hole can flexibly adapt to errors and is easy to adapt to the installation position of different frame bodies, so that the same tooling can be compatible with more models, without the need for frequent adjustment of the tooling size, thereby improving the tooling's universality and ease of use.

[0024] Optionally, the first fixing component further includes a first fixing plate disposed at the first end. The first fixing plate is used to fix the front hood, and the position of the first fixing plate relative to the fixing rod is adjustable in the vertical direction.

[0025] In the above solution, the vertically adjustable first fixing plate can flexibly adapt to the size differences of the front hood. This design facilitates the adjustment of the fixing point height of the first fixing plate and the fixing rod, ensuring precise alignment of the fixing plate and the connection hole of the front hood, and further improving the ease of use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure in some embodiments of this application;

[0028] Figure 2 These are schematic diagrams of the front view structure in some embodiments of this application;

[0029] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 4 This is a cross-sectional view of some other embodiments;

[0031] Figure 5 This is a cross-sectional view of some other embodiments;

[0032] Figure 6 This is a cross-sectional view of some other embodiments.

[0033] [Explanation of Labels in the Attached Image]

[0034] 100. Tooling body;

[0035] 110. First plate portion; 111. First fixing hole;

[0036] 120. Second plate section; 121. First mounting position; 121a. Third fixing hole; 122. Second mounting position;

[0037] 200, Fixed rod; 210, First end;

[0038] 220, Second end; 221, Second fixing hole;

[0039] 300. Fixing pin; 301. First section; 302. Second section; 303. Third section; 304. Fourth section;

[0040] 310. Pin head; 320. Pin rod;

[0041] 400. First fixing plate;

[0042] Z represents the vertical direction; X represents the horizontal direction. Detailed Implementation

[0043] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0045] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0049] In the automotive manufacturing industry, to ensure the corrosion and rust prevention of car bodies, all car manufacturers perform electrophoresis on the car bodies to guarantee their corrosion resistance. The electrophoresis process involves 15 process tanks in the pretreatment and electrophoresis stages. The car body must be immersed in these tanks for cleaning and electrophoresis operations. During this process, the car body doors and hoods must be secured to prevent them from colliding with the equipment when opened.

[0050] During electrophoresis, the car body is rotated 180° with the bottom facing up when entering the tank, and then rotated back to the normal angle after the process is completed. To prevent the car body door cover from accidentally opening during rotation and operation, which could cause the front cover to collide with the equipment, a particularly robust and reliable electrophoresis door cover fixture is required to ensure that the vehicle can be produced normally on the rodip electrophoresis rotation line.

[0051] In view of this, in order to improve ease of use, this application proposes an electrophoresis fixture for a front hood. Along the length of the fixing rod 200, the fixing rod 200 has a first end 210 and a second end 220 arranged opposite to each other. The first end 210 is suitable for fixing the front hood. At least a portion of the fixing pin 300 passes through the second end 220 and the fixture body 100 in the vertical direction Z, so that the second end 220 is movable relative to the fixture body 100. This arrangement allows the connection position between the fixing rod 200 and the fixture body 100 to be finely adjusted within a certain range, which can adapt to the height difference of the front hood due to manufacturing errors, or the height difference of the front hood of different vehicle models. This improves the adaptability of the electrophoresis fixture to different vehicle models, allows the electrophoresis fixture to be adjusted to a certain extent, reduces the design and manufacturing cost of the fixture, has a simple structure, is easy to operate, meets the on-site operation rhythm, can effectively guarantee the component limit requirements, ensure that the component is firmly supported and fixed, and improves the ease of use.

[0052] The following description, in conjunction with the accompanying drawings, describes an electrophoresis fixture for a front engine hood provided in an embodiment of this application.

[0053] Please refer to Figure 1 and Figure 2 An electrophoresis fixture for a front engine hood, according to an embodiment of the first aspect of this application, includes a fixture body 100, a fixing rod 200, and a fixing pin 300.

[0054] As an example, the vertical direction Z is the up-down direction of the vehicle, which is perpendicular to the front-back and left-right directions.

[0055] The tooling body 100 is fixed to the vehicle frame body; it can be understood that the vehicle frame body is the core load-bearing structure of the vehicle, and the tooling body 100 is fixed to the vehicle frame body, which helps to improve the firmness of the tooling installation, thereby helping to ensure that the front engine hood is firmly supported and fixed.

[0056] In addition, there is no need to build an additional independent tooling support frame. The main body of the vehicle frame can be used directly as the tooling carrier, which can reduce the space occupied by equipment on the production site and reduce the design and manufacturing costs of independent tooling.

[0057] Along the length of the fixing rod 200, the fixing rod 200 has a first end 210 and a second end 220 arranged opposite to each other. The first end 210 is suitable for fixing the front engine hood. It can be understood that the weight of the front engine hood and the force during the electrophoresis process can be evenly transmitted to the tooling body 100 and the frame through the fixing rod 200 to ensure that the workpiece is in a stable state during electrophoresis.

[0058] Meanwhile, the fixing rod 200 adopts a rod-shaped structure with forces at both ends. The structure is simple and easy to use, which helps to reduce the impact of the weight of the electrophoresis fixture on the flipping and fixing, and can reduce material costs and manufacturing difficulty.

[0059] At least a portion of the fixing pin 300 passes through the second end 220 and the tooling body 100 in the vertical direction Z, so that the second end 220 is movable relative to the tooling body 100. It is understood that the fixing pin 300 passing through the second end 220 and the tooling body 100 in the vertical direction Z allows the second end 220 of the fixing rod 200 to move or rotate slightly relative to the tooling body 100 in the vertical direction Z. This adjustment can accommodate height differences in the hood due to manufacturing errors, or differences in the height dimensions of the hoods of different vehicle models, improving the adaptability of the electrophoresis tooling to different vehicle models. This allows the electrophoresis tooling to be adjusted to a certain extent, improving its ease of use.

[0060] This design allows the fixed pin 300 to be installed so that the second end 220 can be connected and limited to the tooling body 100 through the rigidity of the pin itself, thus improving the connection strength. During electrophoresis, the front cover will have a smaller range of movement, preventing excessive displacement. The pin also allows for a controllable range of movement, making installation easier and improving usability.

[0061] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The fixing pin 300 is constructed as a ring-shaped component with its ends connected. It can be understood that the ring-shaped fixing pin 300 passes through the second end 220 of the fixing rod 200 and the tooling body 100, which can further improve the firmness of the connection between the second end 220 and the tooling body 100. The ring-shaped structure of the fixing pin 300 can contact the tooling body 100 from multiple directions and provide support from multiple directions.

[0062] During electrophoresis, when the electrophoresis fixture, the front hood, and the main body of the vehicle frame rotate together, the second end 220 of the fixing rod 200 will generate irregular swaying or centrifugal force as the vehicle body posture changes. Traditional rod-shaped pins may move axially due to centrifugal force or gravity, or even be thrown out of the hole. The annular fixing pin 300 can limit the movement from multiple directions, thereby resisting the axial tension caused by rotation and ensuring that it will not fall off under extreme postures such as vehicle body rollover or inversion. This avoids the failure of the fixing effect of the electrophoresis fixture, which may lead to the displacement of the front hood, and further improves the firmness of the component support and fixing.

[0063] This design can resist the axial tension caused by rotation, ensuring that it will not fall off under extreme postures such as vehicle body rollover or inversion, and preventing tooling failure from causing the front hood to shift.

[0064] Meanwhile, the annular fixing pin 300 allows the second end 220 of the fixing rod 200 to move or rotate slightly relative to the fixture body 100 in the vertical direction Z, and is limited by the annular fixing pin 300. This design improves the connection firmness, reduces the shaking range of the front cover during electrophoresis, and prevents excessive displacement. It also facilitates installation, allowing the electrophoresis fixture to be adjusted to a certain extent, thus improving the ease of use of the electrophoresis fixture.

[0065] Furthermore, compared to traditional pins with limiting structures, such as long rod pins with nuts, the ring pin structure is simpler and lighter, reducing the additional weight at the end of the fixing rod 200. When the vehicle body rotates 360 degrees, the lightweight design reduces the inertial impact of the tooling, preventing the hood from swaying due to a shift in the center of gravity, and further improving the robustness of component support and fixation.

[0066] In other embodiments, please refer to Figure 4 The fixing pin 300 includes a pin head 310 and a pin rod 320. Along the vertical direction Z, the pin rod 320 is located at the lower end of the pin head 310 and extends downwards. The pin rod 320 passes through the second end 220 and the tooling body 100. It can be understood that when the pin rod 320 passes through the second end 220 of the fixing rod 200 and the tooling body 100, the pin head 310 will abut against the upper surface of the second end 220 of the fixing rod 200, forming an upper limit position in the vertical direction Z. This prevents the fixing pin 300 from completely falling out of the hole due to gravity or centrifugal force during vehicle rotation, avoids excessive movement of the hood, reduces the hood's sway range, and improves the stability of the hood's support and fixation.

[0067] At the same time, the second end 220 of the fixing rod 200 can move or rotate slightly relative to the fixture body 100 in the vertical direction Z, so that the electrophoresis fixture can be adjusted to a certain extent, which facilitates installation and improves the ease of use of the electrophoresis fixture.

[0068] Furthermore, the pin 320 extends vertically in the Z direction and passes through a hole. Its slender structure provides precise vertical Z-direction guidance for the movement of the second end 220 of the fixing rod 200. When the fixing rod 200 needs to be finely adjusted in the vertical Z direction, the engagement between the pin 320 and the hole wall can constrain the direction of movement, ensuring that the adjustment only occurs in the vertical Z direction and preventing horizontal X-direction offset from interfering with the lateral positioning of the front hood.

[0069] Specifically, the pin 310, as the operating end, can be designed as a flat, raised, or textured structure, allowing for quick disassembly by applying axial force through the pin 310, reducing operation time and improving ease of use.

[0070] After prolonged use, the diameter of the through hole at the second end 220 of the fixing rod 200 or the tooling body 100 may increase due to wear. The cylindrical structure of the pin 320 can adapt to changes in the hole diameter through slight shaking, while the pin head 310 can still maintain its axial limiting function, thus improving its service life.

[0071] In other embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The tooling body 100 includes a first plate portion 110. The thickness direction of the first plate portion 110 is parallel to the vertical direction Z. It can be understood that the upper and lower sides of the horizontal plate portion can be used to connect other tooling components, providing a structural basis for the functional expansion of the tooling body 100 while maintaining the simplicity of the overall structure.

[0072] The second end 220 is disposed on the upper end surface of the first plate 110. It can be understood that the second end 220 of the fixing rod 200 is placed on the upper end surface of the first plate 110 to form a "surface support" contact. The weight of the front hood can be directly transferred to the upper end surface of the first plate 110 through the fixing rod 200, and then transferred from the plate to the main body of the frame. This avoids local stress concentration caused by point contact and reduces wear on the first plate 110 or the second end 220 of the fixing rod 200.

[0073] Meanwhile, the upper surface of the first plate 110 can serve as the reference surface for the second end 220 of the fixing rod 200. During installation, workers only need to place the second end 220 on this plane to complete the initial positioning, simplifying the assembly steps and reducing the risk of tooling failure due to positioning deviation.

[0074] The first plate portion 110 has a first fixing hole 111, which penetrates the first plate portion 110 in the vertical direction Z. It can be understood that the first fixing hole 111 can provide a precise guiding function for the fixing pin 300, ensuring that the fixing pin 300 moves only in the vertical direction Z, avoiding unexpected offset of the second end 220 of the fixing rod 200 in the horizontal direction X, and ensuring the lateral positioning accuracy of the front engine hood.

[0075] The second end 220 has a second fixing hole 221, and the fixing pin 300 passes through the first fixing hole 111 and the second fixing hole 221. It can be understood that the fixing pin 300 passes through both the first fixing hole 111 of the tooling body 100 and the second fixing hole 221 of the second end 220 of the fixing rod 200. This can limit the excessive movement of the second end 220 of the fixing rod 200, avoid large-amplitude shaking of the workpiece, improve the support stability, and also realize small adjustments in the vertical Z direction, improving the ease of installation.

[0076] Furthermore, during the vehicle body rotation process, the structure of the first fixing hole 111 and the second fixing hole 221 in conjunction with the fixing pin 300 can transmit forces in various directions, such as the vertical tension Z and the horizontal shear force X, ensuring that the connection between the fixing rod 200 and the tooling body 100 does not loosen under dynamic working conditions, avoiding the attitude deviation of the front hood due to connection failure, and improving the reliability of the tooling.

[0077] In other embodiments, please refer to Figure 5 The fixing pin 300 includes a first segment 301, a second segment 302, and a third segment 303 connected in the vertical direction Z. The first segment 301 and the third segment 303 are located at both ends of the second segment 302 and extend in the same direction in the horizontal direction X. The second segment 302 passes through the first fixing hole 111 and the second fixing hole 221. It can be understood that the first segment 301 and the third segment 303 can work together to limit the fixing pin 300 from being completely pulled out of the hole in the vertical direction Z. When the fixing pin 300 is subjected to a downward pulling force, the first segment 301 will be blocked by the upper surface of the second end 220 of the fixing rod 200; when pulled upward, the third segment 303 will be blocked by the lower surface of the first plate portion 110.

[0078] This design enables bidirectional limiting, resisting centrifugal force or gravity in any direction when the vehicle body rotates 360 degrees, ensuring that the fixing pin 300 always remains in the inserted position, and preventing the front hood from shaking significantly or even failing to be fixed due to the fixing pin 300 falling off.

[0079] Meanwhile, the second end 220 of the fixing rod 200 can move slightly within the "vertical space" formed by the first section 301 and the third section 303. This design not only limits excessive movement but also retains the adjustment margin to compensate for manufacturing errors or adapt to dynamic forces. It is more practical than a rigid locking structure, easier to install, and improves the convenience of use.

[0080] Specifically, the first section 301, the second section 302, and the third section 303 can form a U-shaped structure, providing adjustment margin while being easy to install and replace.

[0081] In other embodiments, please refer to Figure 6 The fixing pin 300 also includes a fourth segment 304, which extends vertically in the Z direction. One end of the fourth segment 304 in the Z direction is connected to the free end of the first segment 301, and the other end of the fourth segment 304 in the Z direction is spaced apart from the free end of the third segment 303. It can be understood that the first segment 301, the second segment 302, the third segment 303, and the fourth segment 304 form a structure similar to a rectangular frame. When the vehicle body rotates 360 degrees and generates torsional force or lateral impact force, the frame structure can distribute stress through overall force distribution, further improving its robustness.

[0082] Meanwhile, the fourth section 304 can also limit the movement of the front hood, further reducing the sway and improving reliability.

[0083] In other embodiments, please refer to Figure 1 and Figure 2 The tooling body 100 includes a second plate portion 120, which is fixed to the first plate portion 110. The thickness direction of the second plate portion 120 is parallel to the horizontal direction X. As an example, the horizontal direction X can be any direction perpendicular to the vertical direction Z, including but not limited to the front-back direction and the left-right direction. This application does not limit this.

[0084] It is understandable that the second plate 120 is arranged vertically and can form an L-shaped or T-shaped structure with the first plate 110, so that the forces in the vertical direction Z and the horizontal direction X can be transmitted through different plates, which helps to distribute the load and improve the overall rigidity. It plays a supporting and fixing role in different directions with the first plate 110. On the one hand, it is easy to adapt to different vehicle models, and on the other hand, the structure is simple, easy to install and fix, and has high reliability.

[0085] The second plate 120 has multiple first mounting positions 121 for fixing the frame body. It is understood that the first mounting positions 121 can be used to fix the electrophoresis fixture to the frame body. The spacing and number of connection holes of the frame body of different models are different. Multiple first mounting positions 121 can cover the hole requirements of different models, eliminating the need to design fixtures separately for each model, reducing equipment investment and improving ease of use.

[0086] In other embodiments, please refer to Figure 1 The second plate portion 120 also has a second mounting position 122 for fixing the charging cover. It is understood that the charging cover can be fixed to the second plate portion 120 through the second mounting position 122. The second mounting position 122 can be configured as a clamp, bracket, mounting hole, or other structure. This application does not limit this. With this configuration, the charging cover can be electrophoretically coated together with the car body, which further improves the versatility of the electrophoresis fixture and helps to improve production efficiency.

[0087] In other embodiments, please refer to Figure 1 and Figure 2 The first mounting position 121 is configured as the third fixing hole 121a, which is a slotted hole. It is understood that the slotted hole can be an oblong hole, which, compared to a circular hole, has dimensional redundancy along its length, allowing for flexible adaptation to errors. It also facilitates adaptation to different frame body mounting positions, enabling the same tooling to be compatible with more vehicle models. This eliminates the need for frequent tooling size adjustments, improves the tooling's versatility, and enhances ease of use.

[0088] As an example, the length direction of the waist-shaped hole can be the left and right direction of the vehicle, thus making it easy to adapt to frame bodies of different widths.

[0089] In other embodiments, please refer to Figure 1 The first fixing component also includes a first fixing plate 400, which is disposed at the first end 210. The first fixing plate 400 is used to fix the front hood, and its position relative to the fixing rod 200 is adjustable along the vertical direction Z. It is understood that the first fixing plate 400, which is adjustable along the vertical direction Z, can flexibly accommodate differences in the size of the front hood. This design facilitates adjustment of the fixing point height between the first fixing plate 400 and the fixing rod 200, ensuring precise alignment of the connecting holes between the fixing plate and the front hood, further improving ease of use.

[0090] As an example, the first fixing plate 400 and the fixing rod 200 can be connected by an oblong hole. The length direction of the oblong hole of the first fixing plate 400 or the first end 210 can be the vertical direction Z, so that the relative position of the first fixing plate 400 and the fixing rod 200 can be adjusted in the vertical direction Z, which is convenient for adapting to different vehicle models.

[0091] As an example, the first fixing plate 400 can be an L-shaped plate, which includes a horizontal plate and a vertical plate. The vertical plate is connected to the first end 210 of the fixing rod 200, and the horizontal plate is connected to the front engine hood. This arrangement helps to improve the firmness of the tooling installation and ensures that the front engine hood is firmly supported and fixed. On the other hand, it facilitates the adjustment of the position of the first fixing plate 400 relative to the fixing rod 200, thus improving the ease of use.

[0092] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0093] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0094] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0095] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An electrophoresis fixture for a front engine compartment canopy, characterized in that, include: Tooling body (100), fixed to the vehicle frame body; A fixing rod (200) has a first end (210) and a second end (220) disposed opposite to each other along the length direction of the fixing rod (200), the first end (210) being adapted to fix the front hood; A retaining pin (300) is provided, at least a portion of which passes through the second end (220) and the tooling body (100) in a vertical direction (Z) such that the second end (220) is movable relative to the tooling body (100).

2. The electrophoresis fixture according to claim 1, characterized in that, The fixing pin (300) is constructed as a ring-shaped piece with its ends connected.

3. The electrophoresis fixture according to claim 1, characterized in that, The fixing pin (300) includes a pin head (310) and a pin rod (320). Along the vertical direction (Z), the pin rod (320) is located at the lower end of the pin head (310) and extends downward. The pin rod (320) passes through the second end (220) and the tooling body (100).

4. The electrophoresis fixture according to claim 1, characterized in that, The tooling body (100) includes a first plate (110), the thickness direction of the first plate (110) is parallel to the vertical direction (Z), the second end (220) is disposed on the upper end surface of the first plate (110), the first plate (110) has a first fixing hole (111), the first fixing hole (111) passes through the first plate (110) along the vertical direction (Z), the second end (220) has a second fixing hole (221), and the fixing pin (300) passes through the first fixing hole (111) and the second fixing hole (221).

5. The electrophoresis fixture according to claim 4, characterized in that, The fixing pin (300) includes a first segment (301), a second segment (302) and a third segment (303) connected along the vertical direction (Z). The first segment (301) and the third segment (303) are located at both ends of the second segment (302) and extend in the same direction along the horizontal direction (X). The second segment (302) passes through the first fixing hole (111) and the second fixing hole (221).

6. The electrophoresis fixture according to claim 5, characterized in that, The fixing pin (300) further includes a fourth segment (304), which extends along the vertical direction (Z). One end of the fourth segment (304) in the vertical direction (Z) is connected to the free end of the first segment (301), and the other end of the fourth segment (304) in the vertical direction (Z) is spaced apart from the free end of the third segment (303).

7. The electrophoresis fixture according to claim 5, characterized in that, The tooling body (100) includes a second plate (120) which is fixed to the first plate (110). The thickness direction of the second plate (120) is parallel to the horizontal direction (X). The second plate (120) has a plurality of first mounting positions (121) for fixing the frame body.

8. The electrophoresis fixture according to claim 7, characterized in that, The second plate (120) also has a second mounting position (122) for fixing the charging cover.

9. The electrophoresis fixture according to claim 7, characterized in that, The first mounting position (121) is configured as a third fixing hole (121a), and the third fixing hole (121a) is configured as an oblong hole.

10. The electrophoresis fixture according to claim 1, characterized in that, The electrophoresis fixture also includes a first fixing plate (400), which is disposed at the first end (210). The first fixing plate (400) is used to fix the front engine cover. Along the vertical direction (Z), the position of the first fixing plate (400) relative to the fixing rod (200) is adjustable.

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