Positioning tool for spraying metal oil filler cap

Abstract

The application provides a positioning tool for spraying metal oil filler cap, and belongs to the technical field of automobile painting. The tool comprises a main rod, a connecting rod, a first positioning pin, a second positioning pin, a U-shaped buckle and a cylindrical clamping groove. The main rod is in the shape of a long rod. The connecting rod is arranged on the main rod. The first positioning pin is arranged at one end of the main rod and is used for connecting with the lock hole of the oil filler cap plate. Two second positioning pins are arranged on the connecting rod and are used for connecting with the movable hinge mounting hole of the oil filler cap. Two U-shaped buckles are arranged on one side of the connecting rod close to the second positioning pins and are used for connecting with the inner panel of the door. The cylindrical clamping groove is arranged at the end of the main rod away from the first positioning pin and is used for connecting with the metal hole of the inner panel of the door. The tool can stably support the oil filler cap through three-point positioning and has no shielding, realizes complete paint spraying of the oil filler cap and the oil filler, avoids the problem of repeated paint repair caused by shielding and paint defects, and improves the spraying quality.

Description

Technical Field

[0001] This application relates to the field of automotive coating technology, and more specifically, to a positioning fixture for spraying metal fuel filler caps. Background Technology

[0002] Car fuel filler caps can be divided into two categories based on their material: plastic and metal. Plastic fuel filler caps typically only require painting the plastic cover plate, which is then fixed to the front door of the vehicle using a positioning fixture to complete the painting process. This type of cap is widely used. The structure of a metal fuel filler cap is much more complex than that of a plastic one. It includes multiple components such as a fuel filler cap plate, cantilever, and hinge, and all of these components need to be painted. In the production process, metal fuel filler caps are usually assembled onto the vehicle's fuel filler cap by hinges in the welding workshop, and then enter the painting workshop for painting. Traditional painting methods, due to structural differences in the cantilever arms, sometimes result in the fuel filler cap and filler neck being obscured after being installed on the vehicle's fuel filler neck. This leads to paint gaps in these areas. Manual touch-up painting is difficult, not only making it hard to guarantee the quality and uniformity of the paint, but also increasing production time and costs, thus affecting overall production efficiency. Therefore, there is an urgent need for a positioning fixture for spraying metal fuel filler caps. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, this application provides a positioning fixture for spraying paint on metal fuel filler caps, which can stably support the fuel filler cap without obstruction, and achieve complete painting of the fuel filler cap and fuel filler.

[0005] The positioning fixture for spraying metal fuel filler caps provided in this application includes a main rod, a connecting rod, a first positioning pin, a second positioning pin, U-shaped clips, and a cylindrical slot. The main rod is long and rod-shaped; the connecting rod is mounted on the main rod; the first positioning pin is located at one end of the main rod and is used to connect with the locking hole of the fuel filler cap; two second positioning pins are located on the connecting rod and are used to connect with the movable hinge mounting hole of the fuel filler cap; two U-shaped clips are located on the side of the connecting rod near the second positioning pins and are used to connect with the inner panel of the door; the cylindrical slot is located at the end of the main rod away from the first positioning pin and is used to connect with the sheet metal hole of the inner panel of the door.

[0006] In some embodiments, the connecting rod includes: a first connecting rod disposed on the middle section of the main rod, in a U-shape with its opening facing away from the main rod, and two U-shaped buckles disposed on the first connecting rod; a second connecting rod fixedly connected to the first connecting rod; two connecting vertical rods symmetrically disposed on the second connecting rod, and two second positioning pins disposed on each of the connecting vertical rods; and three third connecting rods disposed between the two connecting vertical rods and the main rod, arranged in a triangular distribution.

[0007] In some embodiments, the first positioning pin has a slot that engages with the locking hole of the filler cap.

[0008] In some embodiments, the distance between the two second locating pins is consistent with the distance between the two movable hinge mounting holes of the filler cap.

[0009] In some embodiments, the two U-shaped buckles have U-shaped slots that engage with the upper edge of the inner door panel.

[0010] In some embodiments, the positioning fixture is made of stainless steel.

[0011] Compared with the prior art, the technical solution provided in this application has at least the following technical effects: This application provides a positioning fixture for painting metal fuel filler caps. This fixture provides stable support for the fuel filler cap without obstruction, enabling complete painting of the fuel filler cap and fuel filler neck. A first positioning pin is inserted into the locking hole of the fuel filler cap, and two second positioning pins are respectively inserted into the two mounting holes of the fuel filler cap's movable hinge. At this point, the first and two second positioning pins form a three-point fixation, ensuring the overall stability of the fuel filler cap, main rod, and movable hinge, preventing displacement during painting. Simultaneously, a cylindrical slot is engaged with the edge of the sheet metal hole in the inner panel of the car door, and two U-shaped clips are engaged with the upper edge of the inner panel of the car door. The three-point positioning of the cylindrical slot and the two U-shaped clips fixes the fixture to the inner panel of the car door, ensuring the overall stability of the fixture. After fixing, the fuel filler cap is in an unobstructed and stable state, allowing the painting equipment to evenly paint all parts of the fuel filler cap, avoiding paint gaps caused by obstruction and improving painting quality.

[0012] 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

[0013] 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 the positioning tooling according to some embodiments of this application; Figure 2 This is a schematic diagram of the back structure of the positioning tooling according to some embodiments of this application; Figure 3 This is a structural schematic diagram of the positioning tooling assembly for some embodiments of this application.

[0014] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1. Main rod; 2. Connecting rod; 21. First connecting rod; 22. Second connecting rod; 23. Connecting vertical rod; 24. Third connecting rod; 3. First positioning pin; 4. Second positioning pin; 5. U-shaped buckle; 6. Cylindrical slot; 7. Fuel filler cap; 8. Door inner panel. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] The following reference Figures 1 to 3 This application describes a positioning fixture for spraying metal fuel filler caps according to some embodiments.

[0018] like Figures 1 to 3 As shown, a positioning fixture for spraying metal fuel filler cap 7 according to some embodiments of this application includes a main rod 1, a connecting rod 2, a first positioning pin 3, a second positioning pin 4, a U-shaped buckle 5, and a cylindrical groove 6. The main rod 1 is long; the connecting rod 2 is mounted on the main rod 1; the first positioning pin 3 is located at one end of the main rod 1 and is used to connect with the locking hole of the fuel filler cap 7; two second positioning pins 4 are located on the connecting rod 2 and are used to connect with the movable hinge mounting hole of the fuel filler cap 7; two U-shaped buckles 5 are located on the side of the connecting rod 2 near the second positioning pins 4 and are used to connect with the inner panel 8 of the car door; the cylindrical groove 6 is located at the end of the main rod 1 away from the first positioning pin 3 and is used to connect with the sheet metal hole of the inner panel 8 of the car door.

[0019] In this embodiment, the first positioning pin 3 is inserted into the locking hole of the fuel filler cap 7, and the two second positioning pins 4 are respectively inserted into the two mounting holes of the movable hinge of the fuel filler cap 7. At this time, a three-point fixation is formed by the first positioning pin 3 and the two second positioning pins 4 to ensure the overall stability of the fuel filler cap 7, the main rod 1 and the movable hinge, and to prevent displacement during spraying. At the same time, the cylindrical slot 6 is engaged with the edge of the sheet metal hole of the inner door panel 8, and the two U-shaped buckles 5 are engaged with the upper edge of the inner door panel 8. The fixture is fixed to the inner door panel 8 by the three-point positioning of the cylindrical slot 6 and the two U-shaped buckles 5, ensuring the overall stability of the fixture. After the fixture is fixed, the fuel filler cap 7 is in an unobstructed and stable state, and the spraying equipment can evenly spray paint on all parts of the fuel filler cap 7, avoiding the problem of missing paint due to obstruction and improving the spraying quality.

[0020] In some possible embodiments, such as Figure 1 As shown, the connecting rod 2 includes: a first connecting rod 21, which is located on the middle section of the main rod 1, is U-shaped, and has its opening facing away from the main rod 1; two U-shaped buckles 5 are located on the first connecting rod 21; a second connecting rod 22, which is fixedly connected to the first connecting rod 21; two connecting vertical rods 23, which are symmetrically arranged on the second connecting rod 22; two second positioning pins 4 are respectively located on each connecting vertical rod 23; and three third connecting rods 24, which are arranged in a triangular distribution between the two connecting vertical rods 23 and the main rod 1.

[0021] In this embodiment, the U-shaped first connecting rod 21 is fixed to the middle section of the main rod 1, providing stable support for the U-shaped buckle 5; the second connecting rod 22 is vertically connected to the first connecting rod 21 to enhance the lateral strength; the two connecting vertical rods 23 are symmetrically distributed and form a triangular stable structure through three third connecting rods 24. The triangular structure utilizes the principle of mechanical stability to effectively resist external forces during the spraying process, avoid tooling deformation, ensure the positional accuracy of the positioning pin and the buckle, and thus ensure the spraying consistency of the filler cap 7.

[0022] In some possible embodiments, such as Figure 3 As shown, the first positioning pin 3 has a slot that engages with the locking hole of the filler cap 7.

[0023] In this embodiment, the mechanical interlocking structure of the slot and the locking hole, compared with the clearance fit of ordinary smooth positioning pins, can effectively eliminate radial and axial loose space, so that the filler cap 7 will not deviate from the preset position due to vibration or displacement during the spraying process, ensuring that the relative position of the cap and the tooling is always stable. At the same time, it provides a reliable basic support for the three-point positioning of the first positioning pin 3 and the two second positioning pins 4.

[0024] In some possible embodiments, such as Figure 3As shown, the distance between the two second positioning pins 4 is consistent with the distance between the two movable hinge mounting holes of the filler cap 7.

[0025] In this embodiment, the two positioning pins are spaced at the same distance from the mounting holes of the movable hinge of the filler cap 7, so that the second positioning pin 4 is tightly engaged with the mounting holes of the movable hinge, supporting and fixing the movable hinge, ensuring that the connection between the filler cap 7 and the main rod 1 is stable, and making the tooling easy to assemble and disassemble, avoiding jamming caused by spacing deviation.

[0026] In some possible embodiments, such as Figure 3 As shown, the two U-shaped buckles 5 have U-shaped slots that fit into the upper edge of the inner door panel 8.

[0027] In this embodiment, the buckle is U-shaped with its opening facing the inner door panel 8. The width and depth of the buckle groove match the sheet metal thickness and contour of the upper edge of the inner door panel 8. During assembly, the opening of the U-shaped buckle 5 is aligned with the upper edge of the inner door panel 8 and pushed in a direction perpendicular to the inner panel plane, so that the U-shaped buckle 5 is embedded in the edge of the inner panel. Mechanical locking is achieved by the fit between the inner wall of the buckle and the edge of the inner panel.

[0028] In some possible embodiments, the positioning fixture is made of stainless steel.

[0029] In this embodiment, since there are a large amount of corrosive media such as paint, solvents, and cleaning fluids in the automotive painting workshop, ordinary carbon steel is easily corroded and rusted, resulting in a decrease in the strength of the tooling. However, stainless steel has excellent corrosion resistance and can effectively resist the erosion of various corrosive substances, avoiding the impact of corrosion on the performance of the tooling. At the same time, the surface of stainless steel is smooth and does not easily adhere to paint and stains. After spraying, only regular cleaning is needed to remove residual paint, and it can be used repeatedly for a long time.

[0030] When using the positioning fixture for spraying metal fuel filler caps 7, the operator inserts the first positioning pin 3 into the locking hole of the fuel filler cap 7. The first positioning pin 3 has a groove, which forms a mechanical interlocking structure with the locking hole, effectively eliminating radial and axial looseness. Then, two second positioning pins 4 are inserted into the two mounting holes of the movable hinge of the fuel filler cap 7, with the distance between the two second positioning pins 4 and the two movable hinge mounting holes of the fuel filler cap 7 being consistent, ensuring a tight engagement between the second positioning pins 4 and the movable hinge mounting holes, thus supporting and fixing the movable hinge. At this time, the first positioning pin 3 and the two second positioning pins 4 form a... This creates a three-point fixation. Simultaneously, the operator aligns the U-shaped slots of the two U-shaped buckles 5 with the upper edge of the inner door panel 8, achieving mechanical locking through the fit between the inner wall of the buckle and the edge of the inner panel. The cylindrical slot 6 is then engaged with the edge of the sheet metal hole in the inner door panel 8. Through the three-point positioning of the cylindrical slot 6 and the two U-shaped buckles 5, the entire fixture is fixed to the inner door panel 8, ensuring the stability of the fixture. After the fixture is installed, the fuel filler cap 7 is in an unobstructed and stable state. At this time, the spraying equipment can evenly spray paint onto all parts of the fuel filler cap 7, avoiding the problem of missing paint due to obstruction and improving the spraying quality.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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 positioning fixture for spraying metal fuel filler caps, characterized in that, include: The main stem is long and rod-shaped. Connecting rods are installed on the main rod; The first positioning pin is located at one end of the main rod and is used to connect with the locking hole of the filler cap plate. Two second positioning pins are provided on the connecting rod for connection with the movable hinge mounting hole of the filler cap; Two U-shaped buckles are respectively located on the side of the connecting rod near the second positioning pin, for connecting with the inner panel of the door; A cylindrical slot is provided at the end of the main rod away from the first positioning pin, for connecting with the sheet metal hole of the inner panel of the door; The connecting rod includes: The first connecting rod is located on the middle section of the main rod, and is U-shaped with its opening facing away from the main rod. Two U-shaped buckles are located on the first connecting rod. The second connecting rod is fixedly connected to the first connecting rod; Two connecting vertical rods are symmetrically arranged on the second connecting rod, and two second positioning pins are respectively arranged on each of the connecting vertical rods; Three third connecting rods are arranged in a triangular pattern between the two connecting vertical rods and the main rod.

2. The positioning fixture for spraying metal fuel filler caps according to claim 1, characterized in that: The first positioning pin has a slot that engages with the locking hole of the filler cap.

3. The positioning fixture for spraying metal fuel filler caps according to claim 1, characterized in that: The distance between the two second positioning pins is the same as the distance between the two movable hinge mounting holes of the filler cap.

4. The positioning fixture for spraying metal fuel filler caps according to claim 1, characterized in that: The two U-shaped buckles have U-shaped slots that engage with the upper edge of the inner door panel.

5. The positioning fixture for spraying metal fuel filler caps according to any one of claims 1 to 4, characterized in that: The positioning fixture is made of stainless steel.

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