Over-coating integrated tool and method for vehicle fuel tank covering cap

Abstract

The invention discloses a vehicle fuel tank opening cap overcoating integrated tool and method, solves the problem of poor product consistency in the overcoating process of a fuel tank opening cap body in the prior art, and has the beneficial effects that the product overcoating quality and the product consistency are guaranteed, and according to the specific scheme, the vehicle fuel tank opening cap overcoating integrated tool comprises a supporting frame; the supporting frame is hollowed out, the fuel tank opening cover body can enter the supporting frame, the supporting frame is provided with a containing space for containing the fuel tank opening cover body, an elastic component is arranged on one side of the supporting frame and has set rigidity, and one end of the elastic component is bent and inserted into a fuel tank opening cover mounting hole. Supporting force is provided for the fuel tank covering cap through elastic force of the elastic component, the supporting frame is provided with an inserting piece, and the inserting piece can be clamped into an opening and closing opening of the fuel tank covering cap body at the limiting position where the fuel tank covering cap body is opened relative to the fuel tank covering cap mounting plate and provides acting force towards the supporting frame for the fuel tank covering cap.

Description

Technical Field

[0001] The invention relates to the field of electrophoresis / topcoat spraying before painting of automobile metal parts, and in particular to an integrated tool and method for over-painting a vehicle fuel tank cap. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] In the automobile coating production module, the fuel tank cap is an important closing part of the automobile. The metal fuel tank cap needs to undergo pre-treatment and electrophoresis to protect the sheet metal layer from erosion by external acid rain, oxygen, water and other substances, so as to increase the corrosion resistance of the car body, thereby ensuring the strength of the car body and ensuring the safety of passengers.

[0004] The metal fuel tank cap matches the body side to form a complete vehicle shape. The fuel tank cap belongs to the A-side area of ​​the vehicle and has high requirements on the visual effect of the exterior surface. Therefore, key characteristic data such as orange peel, film thickness, and color difference of the fuel tank cap must be controlled within the standard range.

[0005] In the prior art, an integrated tooling is used, which is connected to the fuel tank cover and can be fixed to the vehicle body as a whole, so that the fuel tank cover can be sprayed under the premise of being supported. However, the inventors found that the existing integrated tooling still has the following problems:

[0006] The frame is equipped with an electrostatic adsorption ring to adsorb the fuel tank cover. During the electrostatic spraying process, the adsorption force is easily unstable, so rework is required after spraying.

[0007] The tank cap is adsorbed by an electrostatic adsorption ring. If the adsorption positions of multiple tank caps are not uniform, the consistency of the product will be affected.

[0008] In addition, the existing tooling has poor compatibility and is mainly targeted at the fuel tank cap of a single model, and cannot be applied to the fuel tank caps of different models. Summary of the invention

[0009] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an integrated tooling for over-coating a vehicle fuel tank cover, which can stably fix the fuel tank cover body and ensure the spraying effect.

[0010] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0011] A vehicle tank cap overcoating integrated tooling includes a support frame, the support frame is hollowed out, the tank cap body can enter the support frame, the support frame has an accommodating space for the tank cap body, an elastic component is arranged on one side of the support frame, the elastic component has a set stiffness, one end of the elastic component is bent and inserted into the tank cap mounting hole, and a supporting force is provided to the tank cap by the elastic force of the elastic component, the support frame is provided with an insert, when the tank cap body is in the extreme position of opening relative to the tank cap mounting plate, the insert can be stuck in the opening and closing mouth of the tank cap body, the insert provides a force to the tank cap in the direction of the support frame, the force provided by the insert to the tank cap is opposite to the supporting force provided by the elastic component, and the other side of the support frame away from the elastic component can be connected to the vehicle body.

[0012] In the above-mentioned integrated tooling for overcoating a vehicle tank cover, the elastic component is bent toward the accommodating space of the support frame, the top side of the elastic component is arranged higher than the support frame, the top side of the elastic component is bent in a U shape, a limiter is arranged on the top side of the elastic component, and the limiter is placed on the lower side of the tank cover mounting plate to limit the tank cover mounting plate.

[0013] The vehicle tank cap overcoating integrated tooling as described above, wherein the insert is disposed in the accommodation space, one side of the insert is bent in a direction away from the elastic member, and one side of the insert is inserted into the opening and closing opening of the tank cap body to provide a force acting downward and toward the support frame to the tank cap body;

[0014] When the fuel tank cover body is at the extreme opening position relative to the fuel tank cover mounting plate, the setting position of the insert on the support frame is determined according to the distance between the fuel tank cover mounting plate and the opening and closing opening of the fuel tank cover body.

[0015] In the above-mentioned one-piece tooling for over-coating a vehicle fuel tank cover, the upper opening of the support frame is arranged so that the fuel tank cover body can enter the support frame from the upper opening of the support frame.

[0016] In the above-mentioned one-piece tooling for overcoating a fuel tank cover of a vehicle, one end of the elastic member away from the fuel tank cover mounting hole is fixed in a ring sleeve, and the ring sleeve is fixed to the support frame;

[0017] The number of elastic components is the same as the number of mounting holes of the fuel tank cover, and the ring sleeve fixes the elastic components at two locations.

[0018] As described above, a vehicle tank cover over-coating integrated tooling, the support frame includes a support rod, the support rod and the circle are set at a distance, the support rod is connected to the bottom side of the circle, the top side of the circle is set higher than the top side of the support rod, bending rods are respectively set on both sides of the circle, the bending rods are connected to the support rod, and the top of the support rod is connected to the elastic component.

[0019] In the above-mentioned one-piece tooling for over-coating the fuel tank opening of a vehicle, the support rod is connected to the base, and clamping plates are respectively arranged on both sides of the base, and the clamping plates are provided with bayonet ports, which are clamped into the stoppers of the window frame.

[0020] As described above, a vehicle fuel tank cover over-coating integrated tooling, the base is connected to the rotating part on the side away from the support rod, the rotating part is connected to the positioning pin, one end of the positioning pin can be inserted into the mounting hole of the door inner panel, and the rotating part uses a spring clip to adjust the position of the positioning pin to meet the use requirements of different vehicle models.

[0021] In the above-mentioned one-piece tooling for over-coating the fuel tank opening of a vehicle, a limiting plate is provided at the positioning pin.

[0022] In a second aspect, the present invention provides a method for coating a metal fuel tank cap of a vehicle, using the above-mentioned one-piece tool for coating a fuel tank cap of a vehicle, including the following contents:

[0023] The fuel tank cover body is passed through the support frame into the accommodation space inside the support frame, the elastic member is compressed so that one end of the elastic member can be inserted into the fuel tank cover mounting hole and provide an upward supporting force to the fuel tank cover body, and the position of the fuel tank cover body is adjusted so that the insert is stuck in the opening and closing position of the fuel tank cover body;

[0024] Connecting the side of the support frame away from the elastic member to the vehicle body;

[0025] The vehicle's fuel tank cap is sprayed by a robot.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1) The present invention provides an integrated tooling, and an elastic component is arranged on the top side of the support frame. The support frame is also provided with an insert. The elastic component has rigidity and elasticity and can be compressed. Since a pin shaft is arranged between the tank cover body and the tank cover mounting plate, one end of the elastic component is bent and inserted into the tank cover mounting hole to provide supporting force to the tank cover body. In this way, the tank cover body and the tank cover mounting plate are in the extreme position when opened, and the elastic force of the elastic component is used to support the tank cover. The insert is inserted into the opening and closing mouth of the tank cover body. The insert provides a force to the tank cover in the direction of the support frame, and the directions of the two forces are opposite. In this way, the tank cover body is stably supported to ensure that the tank cover body is stably supported during the spraying process, and rework after spraying is avoided. While effectively improving efficiency, product quality is guaranteed.

[0028] 2) The elastic component structure in the present invention is reasonably arranged, the elastic component is bent as a whole, the top side of the elastic component is bent in a U shape, and a limiter is arranged, the limiter is placed on the lower side of the fuel tank cover mounting plate to limit the fuel tank cover mounting plate, further ensuring the position consistency of all fuel tank cover bodies when supported; and the elastic component is elastic and can be compressed, ensuring the compatibility of tooling, and can be suitable for supporting fuel tank covers of different models.

[0029] 3) The insert structure of the present invention is reasonably set, one side of the insert is bent toward the side away from the elastic component, and one side of the insert is inserted into the opening and closing mouth of the tank cover body to provide a force downward and toward the support frame to the tank cover body, which is set in the opposite direction to the supporting force provided by the elastic component to the tank cover body.

[0030] 4) The present invention as a whole effectively supports the fuel tank cover through elastic components and inserts, and fully utilizes the elastic limit of the elastic component to provide an upward force to the fuel tank cover, thereby ensuring the accuracy of the position of the fuel tank cover, and thus stably fixing the fuel tank cover to the support frame, and then the support frame is snapped into the stop of the window frame through the bayonet, and a positioning pin is provided that can be inserted into the mounting hole of the door inner panel, so that the entire tooling is stably fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 It is a schematic diagram of an integrated over-coating tooling for a vehicle fuel tank cover according to one or more embodiments of the present invention.

[0033] Figure 2 It is a schematic diagram of the use status of a vehicle tank cover overcoating integrated tooling according to one or more embodiments of the present invention.

[0034] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0035] Wherein: 1. elastic member, 2. ring sleeve, 3. support rod, 4. bending rod, 5. spring clip, 6. reinforcing rib plate, 7. base, 8. bayonet, 9. limit plate, 10. positioning pin, 11. connecting rod, 12. circle, 13. insert, 14. limit nut, 15. support rod, 16. fuel tank cover body, 17. fuel tank cover mounting plate, 18. clamping plate. DETAILED DESCRIPTION

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0038] As introduced in the background technology, the fuel tank cover tooling in the prior art has the problems of being unable to stably support the fuel tank cover and having poor compatibility. In order to solve the above technical problems, the present invention proposes an integrated tooling for over-coating of a vehicle fuel tank cover.

[0039] Embodiment 1

[0040] In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2 As shown, a vehicle tank cover over-coating integrated tooling includes a support frame, the support frame is hollowed out, the tank cover body can enter the support frame, the support frame has a accommodating space for accommodating the tank cover body, an elastic component 1 is arranged on one side of the support frame, the elastic component 1 has a set stiffness, one end of the elastic component 1 is bent and inserted into the tank cover mounting hole, and a supporting force is provided to the tank cover body 16 through the elastic force of the elastic component, the support frame is provided with an insert 13, the insert 13 can be inserted into the opening and closing mouth of the tank cover body, the insert provides a force towards the support frame to the tank cover body 16, the force provided by the insert 13 to the tank cover body 16 is opposite to the supporting force provided by the elastic component, and the other side of the support frame away from the elastic component can be connected to the vehicle body.

[0041] It should be noted that the fuel tank cover includes a fuel tank cover body 16 and a fuel tank cover mounting plate 17, which are connected by a pin shaft. The fuel tank cover body 16 has an extreme position when opened relative to the fuel tank cover mounting plate 17, and this extreme position is determined. This tooling supports the fuel tank cover at this extreme position, which is conducive to ensuring the consistency of the product.

[0042] Among them, the elastic component 1 is bent toward the accommodating space direction of the support frame, and the elastic component 1 is bent in a C shape. The top side of the elastic component 1 is higher than the support frame. The top side of the elastic component 1 is bent in a U shape. The angle between the two side edges of the top side of the elastic component 1 is greater than 20°. In this way, the top side of the elastic component 1 is first bent downward and then bent upward, and the tank cover mounting plate 17 is supported by an upward section of the top side of the elastic component 1. A limit piece is set on the top side of the elastic component 1. The limit piece can specifically be a stainless steel limit nut 14. The limit nut 14 is fixed to the circumferential direction of the elastic component. The limit piece is set at a distance from the top of the lower side of the U-shaped end of the elastic component to ensure stable support for the tank cover body 16. The limit piece is placed on the lower side of the tank cover mounting plate 17 to limit the tank cover mounting plate 17.

[0043] It is easy to understand that one end of the elastic member 1 away from the tank cover mounting hole is fixed in the ring sleeve 2, and the ring sleeve 2 is fixed to the top side of the support frame support rod 15, and the ring sleeve 2 is made of Q235B (carbon structural steel);

[0044] The number of elastic components 1 is the same as the number of the tank cover mounting holes, specifically, there are two elastic components, and the ring sleeve 2 fixes one end of the two elastic components 1 .

[0045] Specifically, the elastic member 1 is made of spring steel, and φ4㎜60Mn (60 manganese) spring steel can be selected. The whole member needs to have certain strength and rigidity, and cannot have obvious deformation during operation to avoid affecting the operation.

[0046] It is easy to understand that the upper opening of the support frame is arranged so that the fuel tank cover body 16 enters the support frame from the upper opening of the support frame.

[0047] In this embodiment, the support frame includes a support rod 15, and the support rod 15 is set at a distance from the circle 12. The inner diameter of the circle 12 is larger than the diameter of the tank cover body 16. The circle specifically adopts a stainless steel electrostatic ring. The support rod 15 is connected to the bottom side of the circle 12 through a connecting rod 11. The connecting rod is specifically SUS304 (304 stainless steel) round steel. The top side of the circle 12 is set higher than the top side of the support rod 15. Bending rods 4 are respectively set on both sides of the circle 12. The bending rod 4 is connected to the support rod 15, and a ring sleeve 2 is set on the top of the support rod 15.

[0048] In this embodiment, the insert 13 is arranged in the accommodating space, one side of the insert 13 is bent in the direction away from the elastic member 1, and the insert is L-shaped. The longer side of the insert 13 is connected to the support rod 15, and the shorter side of the insert 13 is used to be inserted into the opening and closing mouth of the tank cover body to provide a downward force and a force toward the support frame to the tank cover body 16. When the tank cover body 16 is in the extreme position of opening relative to the tank cover mounting plate 17, the setting position of the insert 13 on the support rod is determined according to the distance between the tank cover mounting plate 17 and the opening and closing mouth of the tank cover body at this time.

[0049] It should be noted that the support rod 15 is connected to the base 7, and clamps 18 are respectively provided on both sides of the base 7. The clamps 18 are provided with a bayonet 8, and the bayonet 8 can be inserted into the stop of the window frame of the vehicle body. The clamps on both sides are respectively vertically connected to the base 7. The base 7 is specifically a support bar, specifically a stainless steel support bar, and a reinforcing rib plate 6 is provided between the upper side of the support bar and the support rod 15.

[0050] In this embodiment, the side of the base 7 away from the support rod is connected to the rotating part, and the rotating part is connected to the positioning pin 10. The positioning pin 10 is bent toward the direction of the vehicle body. One end of the positioning pin 10 can be inserted into the mounting hole of the door inner panel. The rotating part uses a spring clip 5. The upper side of the spring clip 5 is welded to the base, and the lower side of the spring clip 5 is welded to one end of the positioning pin 10. The position of the positioning pin can be adjusted by the setting of the spring clip 5 to meet the use requirements of different vehicle models.

[0051] Among them, it should be noted that a limit plate 9 is set at the positioning pin 10, and the limit plate 9 is circumferentially sleeved on the positioning pin 10. The limit plate 9 is larger than the diameter of the door inner panel mounting hole. After one end of the positioning pin can be inserted into the door inner panel mounting hole, the limit plate 9 contacts the door inner panel.

[0052] It is easy to understand that the edges of each component of the support frame are blunted, welding spatter and burrs need to be polished, and each component of the support frame adopts carbon dioxide shielded welding, full welding, and welding height ≤3㎜. The material of the support frame is SUS304 stainless steel, which is resistant to high temperature of 180-220℃, has the properties of not easy to deform, and must meet the requirements of on-site use;

[0053] The tooling provided in this embodiment has an elastic member 1 disposed on the top side of the support frame, and the support frame is also provided with an insert 13. The elastic member 1 has rigidity and elasticity and can be compressed. Because a pin is disposed between the fuel tank cover body and the fuel tank cover mounting plate 17, when the angle of the fuel tank cover body 16 relative to the fuel tank cover mounting plate 17 is the largest, one end of the elastic member is bent and inserted into the fuel tank cover mounting hole to provide an upward supporting force to the fuel tank cover body. In this way, the elastic force of the elastic member is used to support the fuel tank cover mounting plate, and the insert is stuck in the opening and closing opening of the fuel tank cover body, and the insert provides a force toward the support frame to the fuel tank cover. The directions of the two forces are opposite, ensuring the stability of the extreme position between the tank cover body 16 and the tank cover mounting plate 17, so that the tank cover body 16 is stably supported to ensure that the tank cover body is stably supported during the spraying process, avoiding rework after spraying, effectively improving efficiency and ensuring product quality; in addition, the overall can meet the requirements of metal tank cover pre-treatment, electrophoresis, and topcoat; the tank cover can obtain good electrophoresis effect and roughness, and there is no need to replace tooling between different processes, while meeting the robot's electrostatic spraying to ensure the uniformity of film thickness, thereby obtaining a better visual effect.

[0054] Embodiment 2

[0055] This embodiment provides a method for coating a metal fuel tank cap of a vehicle, using the one-piece tool for coating a fuel tank cap of a vehicle described in the first embodiment, including the following contents:

[0056] Pass the fuel tank cover body through the support frame into the accommodation space inside the support frame, compress the elastic member downward by 2-4 cm, so that one end of the elastic member can be inserted into the fuel tank cover mounting hole and provide an upward supporting force to the fuel tank cover body, and adjust the position of the fuel tank cover body so that the insert is stuck in the opening and closing position of the fuel tank cover body;

[0057] Connect the side of the support frame away from the elastic member to the vehicle body: Hold the spring clip 5 and align the bayonet of the card plate with the stopper of the window frame to make it fully snap in, press the spring clip 5 hard and open it 20°-25°, align the positioning pin 10 with the installation hole of the door inner panel, and the limit plate 9 contacts the inner panel, and the assembly is completed;

[0058] The vehicle's fuel tank cap is sprayed by a robot.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle fuel tank cover overcoating integrated tooling, characterized in that: The invention comprises a support frame, which is hollowed out, and a fuel tank cover body can enter the support frame, and the support frame has an accommodating space for accommodating the fuel tank cover body. An elastic component is arranged on one side of the support frame, and the elastic component has a set stiffness. One end of the elastic component is bent and inserted into the mounting hole of the fuel tank cover, and a supporting force is provided to the fuel tank cover through the elastic force of the elastic component. An insert is arranged on the support frame, and the insert can be stuck in the opening and closing mouth of the fuel tank cover body at the extreme position where the fuel tank cover body is opened relative to the fuel tank cover mounting plate. The insert provides a force to the fuel tank cover in the direction of the support frame, and the force provided by the insert to the fuel tank cover is opposite to the supporting force provided by the elastic component. The other side of the support frame away from the elastic component can be connected to the vehicle body.

2. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: The elastic component is bent toward the accommodating space direction of the support frame, the top side of the elastic component is higher than the support frame, the top side of the elastic component is bent in a U shape, a limiter is set on the top side of the elastic component, and the limiter is placed on the lower side of the tank cover mounting plate to limit the tank cover mounting plate.

3. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: The insert is disposed in the accommodation space, one side of the insert is bent in a direction away from the elastic member, and one side of the insert is inserted into the opening and closing opening of the fuel tank cover body to provide a force acting downward and toward the support frame to the fuel tank cover body; When the fuel tank cover body is at the extreme opening position relative to the fuel tank cover mounting plate, the setting position of the insert on the support frame is determined according to the distance between the fuel tank cover mounting plate and the opening and closing opening of the fuel tank cover body.

4. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: The upper opening of the support frame is arranged so that the fuel tank cover body enters into the support frame from the upper opening of the support frame.

5. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: One end of the elastic member away from the tank cover mounting hole is fixed in a ring sleeve, and the ring sleeve is fixed to the support frame; The number of the elastic components is the same as the number of the fuel tank cover mounting holes.

6. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: The support frame includes a support rod, which is set at a distance between the support rod and the circle, the support rod is connected to the bottom side of the circle, the top side of the circle is set higher than the top side of the support rod, bending rods are respectively set on both sides of the circle, the bending rods are connected to the support rod, and the top of the support rod is connected to the elastic component.

7. The vehicle fuel tank cover overcoating integrated tooling according to claim 6, characterized in that: The support rod is connected to the base, and clamping plates are respectively arranged on both sides of the base. The clamping plates are provided with clamping ports, and the clamping ports are clamped into the stoppers of the window frame.

8. The vehicle fuel tank cover overcoating integrated tooling according to claim 1, characterized in that: The side of the base away from the support rod is connected to the rotating member, the rotating member is connected to the positioning pin, and one end of the positioning pin can be inserted into the mounting hole of the door inner plate.

9. The vehicle fuel tank cover overcoating integrated tooling according to claim 8, characterized in that: A limiting plate is arranged at the positioning pin.

10. A method for overcoating a metal fuel tank cap of a vehicle, characterized in that: A vehicle fuel tank cover overcoating integrated tooling according to any one of claims 1 to 9 comprises the following contents: The fuel tank cover body is passed through the support frame into the accommodation space inside the support frame, the elastic member is compressed so that one end of the elastic member can be inserted into the fuel tank cover mounting hole and provide an upward supporting force to the fuel tank cover body, and the position of the fuel tank cover body is adjusted so that the insert is stuck in the opening and closing position of the fuel tank cover body; Connecting the side of the support frame away from the elastic member to the vehicle body; The vehicle's fuel tank cap is sprayed by a robot.

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