A split type tailgate paint spraying tool
Patent Information
- Application Number
- CN202522266868.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-27
AI Technical Summary
这种结构在拆装过程中容易导致钣金变形，且硬接触易划伤漆膜，影响产品外观和耐腐蚀性能，严重时甚至会影响总装装配；利用磁力吸附固定，对于大尺寸、质量重的尾门，其吸附固定能力往往不足，存在安全隐患，同时，工装需随车身经过高温烘烤炉，内置的永磁体经多次高温后容易退磁、变脆失效，更换频率高，增加了后期维护成本
本申请提供的一种对开式尾门喷漆工装，本实用新型通过创新性地采用“孔定位”方式，通过定位销与尾门内板原有的定位孔配合，接触面积极小，仅为孔边缘的料厚，从根本上避免了传统卡接方式造成的钣金变形和漆面损伤，保证了产品质量，通过定位组件和卡接锁紧组件的组合，实现了对尾门的双向约束，这种“一点定位，一点锁紧”的结构，既能有效防止车门关闭，也能防止其过度开启，固定非常可靠，尤其适用于大尺寸重型尾门；而且安装本工装后，尾门被稳定固定在最佳喷涂角度（如90度），机器人可直接进行内外表面喷涂，完全省去了开门机器人的开关门动作及其辅助工装，显著缩短了作业时间，提高了生产节拍和整线效率；并且该工装结构简单，安装可靠，还能保证喷漆质量，拆装方便，提高工作效率，降低了制作及维护成本。
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Figure CN224823015U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of automotive manufacturing tooling technology, specifically relating to a double-opening tailgate painting tooling. Background Technology
[0002] During the automotive painting process, vehicle doors (including tailgates) can swing freely around their hinges before entering the painting workshop. To facilitate painting operations by robots or manual labor and to prevent damage to the wet paint film or sealant caused by the doors shaking during chain transport, specialized fixtures are needed to fix the doors at a specific opening angle. For the double-opening tailgates widely used in light commercial vehicles, their large size and heavy weight place higher demands on the fixing capacity and reliability of the supporting fixtures.
[0003] However, in existing technologies, the inner sheet metal of the car door is directly clamped using clips or buckles. This structure is prone to deformation of the sheet metal during disassembly and assembly, and the hard contact can easily scratch the paint film, affecting the product's appearance and corrosion resistance. In severe cases, it can even affect the final assembly. Using magnetic adsorption for fixation is often insufficient for large, heavy tailgates, posing safety hazards. Furthermore, the tooling needs to be baked in a high-temperature oven along with the car body, and the built-in permanent magnets are prone to demagnetization, brittleness, and failure after repeated high-temperature exposure, leading to frequent replacements and increased maintenance costs.
[0004] To address the above issues, this application designs a double-opening tailgate painting fixture to solve the problems in the prior art, such as the easy deformation of sheet metal and paint damage caused by snap-fit fixtures, and the unreliable fixation and high maintenance costs of magnetic fixtures. Utility Model Content
[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.
[0006] Therefore, this application designs a double-opening tailgate painting fixture to avoid damage to sheet metal and paint, ensure reliable fixing, and reduce maintenance costs.
[0007] This application provides a painting fixture for a split-opening tailgate, comprising: a first connecting rod; a second connecting rod fixed to one end of the first connecting rod, wherein the first connecting rod and the second connecting rod are arranged at a 90-degree angle; a positioning component disposed at the end of the second connecting rod for engaging with a positioning hole on the inner panel of the tailgate; and a snap-fit locking component disposed at the other end of the first connecting rod for snapping and locking onto the stop edge of the vehicle body door frame. The positioning component and the snap-fit locking component work together to support and fix the tailgate at a preset opening angle.
[0008] In some possible embodiments, the positioning component includes: a positioning pin, fixed to the inner side of the end of the second link, for insertion into the positioning hole of the tailgate inner panel; and a limiting boss, fixed to the end of the positioning pin, wherein the diameter of the limiting boss is larger than the diameter of the positioning hole.
[0009] In some possible embodiments, the end of the limiting boss is rounded, and the diameter of the end of the limiting boss is smaller than the diameter of the positioning hole in the inner panel of the tailgate.
[0010] In some possible embodiments, the snap-fit locking assembly includes: a first locking plate, fixed to the left side of the upper part of the first connecting rod; The second clamping plate is located on the right side of the first clamping plate and fixed to the upper part of the first connecting rod. The first clamping plate and the second clamping plate are arranged opposite each other to form a clamping groove. The stop rod is fixed to the first connecting rod and extends into the clamping groove to form a limiting groove with the second clamping plate for axially limiting the stop edge.
[0011] In some possible embodiments, the snap-fit locking assembly further includes: a nut fixed to the outside of the first clamping plate; and a T-shaped threaded rod disposed on the left side of the second clamping plate, wherein the T-shaped threaded rod is threadedly matched with the nut, and the T-shaped threaded rod movably passes through the first clamping plate.
[0012] In some possible embodiments, a reinforcing block is fixed between the right side of the second card plate and the first connecting rod.
[0013] In some possible embodiments, a reinforcing rod is fixed between the first link and the second link.
[0014] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects: This application provides a painting fixture for a split-opening tailgate. This utility model innovatively employs a "hole positioning" method, where a positioning pin engages with the existing positioning holes on the inner panel of the tailgate. The contact area is extremely small, only the thickness of the material at the edge of the hole, fundamentally avoiding sheet metal deformation and paint damage caused by traditional snap-fit methods, thus ensuring product quality. The combination of positioning and snap-fit locking components achieves bidirectional constraint on the tailgate. This "one-point positioning, one-point locking" structure effectively prevents the door from closing and also prevents it from over-opening, providing highly reliable fixation, especially suitable for large, heavy-duty tailgates. Furthermore, after installing this fixture, the tailgate is stably fixed at the optimal painting angle (e.g., 90 degrees), allowing the robot to directly paint the inner and outer surfaces, completely eliminating the need for the door-opening robot's opening and closing actions and its auxiliary fixtures, significantly shortening operation time, improving production cycle time and overall line efficiency. Moreover, this fixture has a simple structure, reliable installation, ensures paint quality, is easy to assemble and disassemble, improves work efficiency, and reduces manufacturing and maintenance costs.
[0015] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of a double-opening tailgate painting fixture according to some embodiments of this application; Figure 2 This is a partially enlarged structural diagram of a double-opening tailgate painting fixture according to some embodiments of this application; Figure 3 This is a schematic diagram of the overall planar structure of a double-opening tailgate painting fixture according to some embodiments of this application.
[0017] Figure label: First connecting rod 1, second connecting rod 101, nut 2, first clamping plate 3, second clamping plate 4, stop bar 5, reinforcing block 6, T-shaped threaded rod 7, reinforcing rod 8, positioning pin 9, limiting boss 901. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0020] The following reference Figures 1 to 3 This application describes a painting fixture for a split tailgate according to some embodiments.
[0021] In some embodiments, a double-opening tailgate painting fixture includes: a first connecting rod 1; a second connecting rod 101, fixed to one end of the first connecting rod 1, with the first connecting rod 1 and the second connecting rod 101 arranged at a 90-degree angle; a positioning component, disposed at the end of the second connecting rod 101, for engaging with a positioning hole on the inner panel of the tailgate; and a snap-fit locking component, disposed at the other end of the first connecting rod 1, for snapping and locking onto the stop edge of the vehicle body door frame. The positioning component and the snap-fit locking component work together to support and fix the tailgate at a preset opening angle. The snap-fit locking component includes: a first locking plate 3, fixed to... The first connecting rod 1 has an upper left side; a second locking plate 4 is located on the right side of the first locking plate 3 and fixed to the upper part of the first connecting rod 1, with the first locking plate 3 and the second locking plate 4 forming a locking groove opposite each other; a stop rod 5 is fixed to the first connecting rod 1, and the stop rod 5 extends into the locking groove and forms a limiting groove with the second locking plate 4 for axially limiting the stop edge; the locking assembly also includes: a nut 2, fixed to the outside of the first locking plate 3; a T-shaped threaded rod 7, located on the left side of the second locking plate 4, and the T-shaped threaded rod 7 is threadedly matched with the nut 2, and the T-shaped threaded rod 7 moves through the first locking plate 3.
[0022] In this embodiment, since an open slot is formed between the first card plate 3 and the second card plate 4, and the stop rod 5 is fixed on the first connecting rod 7 and extends into the slot, the stop rod 5 and the inner side wall of the fixed card plate 4 together form a limiting groove, which embeds the door frame stop edge into the slot formed by the first card plate 3 and the second card plate 4, and ensures that the stop edge is close to the bottom of the limiting groove formed by the stop rod 5 and the second card plate 4. Then, by rotating the T-shaped threaded rod 7, the T-shaped threaded rod 7 extends into the limiting groove, which helps to tightly clamp the door frame stop edge between the first card plate 3 and the second card plate 4, thus completing the locking. At this time, the tailgate is firmly supported at a 90-degree opening.
[0023] In some embodiments, the positioning component includes: a positioning pin 9, fixed to the inner side of the end of the second connecting rod 101, for insertion into the positioning hole of the tailgate inner panel; a limiting boss 901, fixed to the end of the positioning pin 9, wherein the diameter of the limiting boss 901 is larger than the diameter of the positioning hole; the end of the limiting boss 901 is rounded, and the end diameter of the limiting boss 901 is smaller than the diameter of the positioning hole of the tailgate inner panel.
[0024] In this embodiment, the positioning pin 9 of the tooling is aligned and inserted into the preset positioning hole on the inner panel of the tailgate until the limiting boss 901 of the positioning pin 9 is in contact with the surface of the inner panel of the tailgate. Since the positioning pin 9 has the limiting boss 901, and the diameter of the limiting boss 901 is larger than the diameter of the positioning hole on the inner panel of the tailgate, while the diameter of the limiting boss 901 is slightly smaller than the diameter of the positioning hole, this design allows the limiting boss 901 to fit tightly against the surface of the inner panel 11 of the tailgate during installation, preventing the tooling from shaking. At the same time, it makes it easy to insert the limiting boss 901 into the positioning hole. Moreover, the end of the limiting boss 901 is rounded, which helps to prevent the paint from being damaged during operation. The disassembly process is the reverse of the above steps. First, loosen the T-shaped threaded rod 7 so that the door frame is released in the slot, and then the tooling can be removed from the door frame. Then, pull out the positioning pin 9 and the limiting boss 901 from the positioning hole of the tailgate.
[0025] In some embodiments, a reinforcing block 6 is fixed between the right side of the second card plate 4 and the first connecting rod 1.
[0026] In this embodiment, a reinforcing block 6 is welded to the outside of the second clamping plate 4 to ensure that the second clamping plate 4 can withstand a large clamping force.
[0027] In some embodiments, a reinforcing rod 8 is fixed between the first connecting rod 1 and the second connecting rod 101 of the second card plate 4.
[0028] In this embodiment, the first connecting rod 1 and the second connecting rod 101 are welded perpendicularly to each other, and a reinforcing rod 8 is welded between the first connecting rod 1 and the second connecting rod 101 to enhance the overall rigidity of the frame.
[0029] In summary, this utility model innovatively adopts a "hole positioning" method, using the positioning pin 9 to engage with the original positioning hole on the inner panel of the tailgate. The contact surface is extremely small, only the thickness of the material at the edge of the hole, fundamentally avoiding sheet metal deformation and paint damage caused by traditional snap-fit methods, thus ensuring product quality. The combination of positioning components and snap-fit locking components achieves bidirectional constraint on the tailgate. This "one-point positioning, one-point locking" structure effectively prevents the door from closing and also prevents it from over-opening, providing highly reliable fixation, especially suitable for large-size heavy-duty tailgates. Moreover, after installing this fixture, the tailgate is stably fixed at the optimal spraying angle (e.g., 90 degrees), allowing the robot to directly spray the inner and outer surfaces, completely eliminating the need for the door-opening robot's opening and closing actions and its auxiliary fixtures, significantly shortening operation time, improving production cycle and overall line efficiency. Furthermore, the fixture has a simple structure, reliable installation, ensures paint quality, is easy to assemble and disassemble, improves work efficiency, and reduces manufacturing and maintenance costs.
[0030] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The above description is merely a preferred embodiment of this application and is not intended to limit 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 protection scope of this application.
Claims
1. A painting fixture for a split-opening tailgate, characterized in that, include: First link (1); The second link (101) is fixed to one end of the first link (1), and the first link (1) and the second link (101) are set at a 90-degree angle. A positioning component is located at the end of the second link (101) and is used to engage with a positioning hole on the inner panel of the tailgate. The snap-fit locking assembly is located at the other end of the first link (1) and is used to snap-fit and lock onto the stop edge of the vehicle body door frame. The positioning assembly and the snap-fit locking assembly work together to support and fix the tailgate at a preset opening angle.
2. The painting fixture for a split tailgate according to claim 1, characterized in that, The positioning component includes: The positioning pin (9) is fixed to the inner side of the end of the second connecting rod (101) and is used to insert into the positioning hole of the tailgate inner panel; A limiting boss (901) is fixed to the end of the positioning pin (9), and the diameter of the limiting boss (901) is greater than the diameter of the positioning hole.
3. The painting fixture for a split tailgate according to claim 2, characterized in that, The end of the limiting boss (901) is rounded, and the diameter of the end of the limiting boss (901) is smaller than the diameter of the positioning hole of the tailgate inner panel.
4. The painting fixture for a split tailgate according to claim 2, characterized in that, The snap-fit locking assembly includes: The first card plate (3) is fixed to the left side of the upper part of the first connecting rod (1); The second card plate (4) is located on the right side of the first card plate (3) and fixed to the upper part of the first connecting rod (1). The first card plate (3) and the second card plate (4) are arranged opposite to each other to form a card slot. The stop bar (5) is fixed on the first connecting rod (1), and the stop bar (5) extends into the slot and forms a limiting groove with the second card plate (4) for axially limiting the stop edge.
5. The painting fixture for a split tailgate according to claim 1, characterized in that, The snap-fit locking assembly also includes; Nut (2) is fixed to the outside of the first clamping plate (3); A T-shaped threaded rod (7) is located on the left side of the second clamping plate (4), and the T-shaped threaded rod (7) is threadedly matched with the nut (2). The T-shaped threaded rod (7) moves through the first clamping plate (3).
6. The painting fixture for a split tailgate according to claim 5, characterized in that, A reinforcing block (6) is fixed between the right side of the second card plate (4) and the first connecting rod (1).
7. The painting fixture for a split tailgate according to claim 1, characterized in that, A reinforcing rod (8) is fixed between the first link (1) and the second link (101).