Car hood pre-treatment tools

Abstract

The utility model relates to the technical field of automobile painting, and specifically discloses a pre-treatment auxiliary tool for automobile hood, comprising a middle auxiliary tool and two side auxiliary tools, the side auxiliary tools comprising a mounting plate and a pull-down member, the mounting plate being used to be fixedly connected to the vehicle body, the pull-down member being used to be connected to the hood, the middle auxiliary tool being located between the two side auxiliary tools, the middle auxiliary tool comprising a connecting frame and an extending member, the connecting frame being used to be connected to the vehicle body, the extending member being fixedly connected to the connecting frame and extending along the front-rear direction of the hood, the extending member being fixedly connected with a supporting member, the supporting member being used to support the hood. The hood is supported along the front-rear direction of the hood by the middle auxiliary tool, and the hood is connected to the vehicle body by two side auxiliary tools on both sides of the hood, while the middle auxiliary tool supports the hood, the two side auxiliary tools connect the hood to the vehicle body and provide appropriate pulling force to the hood, so as to avoid deformation of the hood during the pre-treatment process and ensure the matching accuracy between the hood and the vehicle body.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile painting, in particular to an auxiliary tool for pre-processing an automobile engine cover. Background Art

[0002] As the inner and outer panels of passenger car hoods gradually become thinner, the front hoods are unevenly deformed during the pre-treatment process of painting. The plate edges are unevenly stressed in the tank liquid, causing problems such as edge lifting and sagging. This is particularly obvious after the car body is dried, affecting the matching effect of the car body and resulting in the matching accuracy between the car body and the hood not meeting the standard. Most of the existing pre-treatment auxiliary tools are two-point supports, and there is still a risk of local deformation during the pre-treatment of thin plate hoods. Utility Model Content

[0003] The utility model aims to provide a pre-processing auxiliary tool for an automobile hood, so as to avoid the problem that the matching accuracy between the vehicle body and the hood does not meet the standard due to deformation of the hood during the pre-processing process.

[0004] The utility model provides a pre-processing auxiliary tool for an automobile engine hood, which is used for connecting a vehicle body and an engine hood. The pre-processing auxiliary tool for the automobile engine hood comprises a middle sub-auxiliary tool and two side sub-auxiliary tools, the two side sub-auxiliary tools are respectively arranged on both sides of the vehicle body, the side sub-auxiliary tools comprise a mounting plate and a pull-down member, the mounting plate is fixedly connected to the pull-down member, the mounting plate is used for being fixedly connected to the vehicle body, the pull-down member is used for being connected to the engine hood, the middle sub-auxiliary tool is located between the two side sub-auxiliary tools, the middle sub-auxiliary tool comprises a connecting frame and an extending member, the connecting frame is used for being connected to the vehicle body, the extending member is fixedly connected to the connecting frame and extends along the front-rear direction of the engine hood, a supporting member is fixedly connected to the extending member, and the supporting member is used for supporting the engine hood.

[0005] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the support member includes a first sub-support member, a second sub-support member and a third sub-support member, and the first sub-support member, the second sub-support member and the third sub-support member are arranged at intervals along the extension member.

[0006] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the first sub-support is arranged at one end of the extension member close to the rear of the hood, the third sub-support is arranged at one end of the extension member close to the front of the hood, and the second sub-support is arranged between the first sub-support and the third sub-support. The height of the first sub-support is greater than that of the second sub-support, and the height of the second sub-support is greater than that of the third sub-support.

[0007] As an optimal technical solution for the automobile hood pre-processing auxiliary tool, the first sub-support member includes a first support rod and a first support seat, the first support rod is fixedly connected to the first support seat, and the first support seat is used to contact the hood, the second sub-support member includes a second support rod and a second support seat, the second support rod is fixedly connected to the second support seat, and the second support seat is used to contact the hood, and the third sub-support member includes a third support rod and a third support seat, the third support rod is fixedly connected to the third support seat, and the third support seat is used to contact the hood.

[0008] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the height of the support member is adjustable.

[0009] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the support member includes a threaded adjustment part and two support parts. The two support parts are respectively threadedly connected to the two ends of the threaded adjustment part, and the threads at the two ends of the threaded adjustment part have opposite rotation directions.

[0010] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the support member also includes two locking nuts, and the two locking nuts are respectively threadedly connected to the two ends of the threaded adjustment part.

[0011] As an optimal technical solution for the automobile hood pre-processing auxiliary tool, the lower pull member includes a first pull rod and a second pull rod, both of which are fixedly connected to the mounting plate, and along the front and rear directions of the hood, the first pull rod and the second pull rod are arranged at an angle, and both of which are used to connect to the hood.

[0012] As an optimal technical solution for the automobile hood pre-processing auxiliary tool, the end of the first pull rod is bent to form a first limiting portion, which is used to clamp with one of the process holes on the hood; the end of the second pull rod is bent to form a second limiting portion, which is used to clamp with another process hole on the hood, and the first limiting portion and the second limiting portion are bent in the same direction.

[0013] As a preferred technical solution for the automobile hood pre-processing auxiliary tool, the mounting plate and the pull-down member are arranged at an angle.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a pre-processing auxiliary tool for an automobile hood, which supports the hood along the front-rear direction of the hood through a middle auxiliary tool, and connects the hood with the vehicle body through two side auxiliary tools on both sides of the hood. While the middle auxiliary tool supports the hood, the two side auxiliary tools connect the hood with the vehicle body and provide appropriate pulling force to the hood, thereby avoiding deformation of the hood during the pre-processing process and ensuring the matching accuracy of the hood and the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front view of the side sub-tool of the automobile hood pre-treatment tool in the embodiment of the utility model;

[0017] Figure 2 It is a side view of the side edge sub-tool of the automobile hood pre-treatment tool in the embodiment of the utility model;

[0018] Figure 3 It is a top view of the middle sub-tool of the automobile hood pre-treatment tool in the embodiment of the utility model;

[0019] Figure 4 It is a side view of the middle sub-tool of the automobile hood pre-treatment tool in the embodiment of the utility model;

[0020] Figure 5 It is a cross-sectional view of the first supporting member in the second embodiment of the present utility model.

[0021] In the figure:

[0022] 1. Mounting plate; 2. Positioning hole; 3. Pull-down member; 31. First pull rod; 311. First limiter; 32. Second pull rod; 321. Second limiter;

[0023] 4. Connecting frame; 5. Connecting plate; 6. Extension member; 7. Support member; 71. First sub-support member; 711. First support rod; 712. First support seat; 72. Second sub-support member; 721. Second support rod; 722. Second support seat; 73. Third sub-support member; 731. Third support rod; 732. Third support seat; 701. Support portion; 702. Threaded adjustment portion; 703. Locking nut. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] For ease of explanation, the concept of vehicle coordinate system in the prior art is used here: the positive direction of the X-axis is the direction of travel of the vehicle, the positive direction of the Y-axis is perpendicular to the X-axis and points to the left side of the vehicle from the perspective inside the vehicle, and the positive direction of the Z-axis is perpendicular to the plane where the X-axis and Y-axis directions are located and points upward toward the vehicle.

[0029] Embodiment 1

[0030] like Figure 1-Figure 4As shown, the utility model provides a car hood pre-processing auxiliary tool for connecting the car body and the hood. The car hood pre-processing auxiliary tool includes a middle sub-assistant and two side sub-assistants. The two side sub-assistants are respectively arranged on both sides of the car body. The side sub-assistants include a mounting plate 1 and a pull-down member 3. The mounting plate 1 is fixedly connected to the pull-down member 3, and the connection method is preferably welding. The mounting plate 1 is used for fixed connection with the car body. The mounting plate 1 is connected to the longitudinal beam on the left or right side of the engine compartment, and is located on the outside of the longitudinal beam of the engine compartment to facilitate installation and disassembly operations. The connection method of the mounting plate 1 and the longitudinal beam of the engine compartment is preferably bolted, and in order to ensure the accuracy of the connection, a positioning hole 2 is opened on the mounting plate 1, and the positioning hole 2 is set as a threaded hole. The threaded hole is aligned with one of the threaded holes of the engine compartment longitudinal beam. The bolt is threadedly connected to the positioning hole 2 on the mounting plate 1 and the corresponding threaded hole on the engine compartment longitudinal beam, thereby ensuring the relative position relationship between the mounting plate 1 and the engine compartment longitudinal beam. The pull-down member 3 is used to connect with the hood, and the connection method can be clamping, bolting or magnetic connection. In this embodiment, clamping is preferred. The middle sub-auxiliary tool is located between the two side sub-auxiliary tools. The middle sub-auxiliary tool includes a connecting frame 4 and an extension member 6. The connecting frame 4 is used to connect with the vehicle body. Two connecting plates 5 are welded and connected at both ends of the connecting frame 4, and the connecting frame 4 is fixedly connected to the vehicle body through the connecting plates 5. The extension member 6 is fixedly connected to the connecting frame 4 and extends along the front and rear direction of the hood. A support member 7 is fixedly connected to the extension member 6, and the support member 7 is used to support the hood. The hood is supported along the front and rear direction of the hood by the middle sub-auxiliary tool, and the hood is connected to the vehicle body by two side sub-auxiliary tools on both sides of the hood. While the middle sub-auxiliary tool supports the hood, the two side sub-auxiliary tools connect the hood to the vehicle body and provide appropriate pulling force to the hood, so as to avoid deformation of the hood during the pre-processing process and ensure the matching accuracy between the hood and the vehicle body.

[0031] For details, please refer to Figure 1-Figure 2 As shown, in this embodiment, the side sub-support located on the left side is taken as an example for explanation, and the structure of the side sub-support located on the right side is the same or similar to the structure of the side sub-support located on the left side, so it will not be repeated. Figure 1 and Figure 2The directions in are respectively the positive directions of the corresponding coordinate axes. The mounting plate 1 is connected to the lower pull member 3 by full welding, and the lower pull member 3 includes a first pull rod 31 and a second pull rod 32, and the first pull rod 31 and the second pull rod 32 are both fixedly connected to the upper end of the mounting plate 1. The lower ends of the first pull rod 31 and the second pull rod 32 are connected to each other, and the upper ends are arranged at intervals along the X-axis direction, that is, along the front and rear directions of the machine cover, the first pull rod 31 and the second pull rod 32 are arranged at an angle and form a V-shaped structure. The first pull rod 31 and the second pull rod 32 are both used to connect with the machine cover, and the connection method can be clamping, bolt connection or magnetic connection. In this embodiment, the first pull rod 31 and the second pull rod 32 are both connected to the machine cover by clamping. The end of the first pull rod 31 is bent to form a first limit portion 311, and the first limit portion 311 is used to clamp with one of the process holes on the inner plate of the machine cover. The end of the second pull rod 32 is bent to form a second limit portion 321, and the second limit portion 321 is used to snap-fit ​​with another process hole on the inner plate of the hood, and the first limit portion 311 and the second limit portion 321 are bent in the same direction to ensure that the first limit portion 311 and the second limit portion 321 are smoothly snap-fitted with the inner plate of the hood. In this embodiment, the first limit portion 311 and the second limit portion 321 are both bent in the positive direction of the X axis, that is, bent in the direction toward the front of the hood. Since the mounting plate 1 fits with the outer side of the engine compartment longitudinal beam after installation, and the first limit portion 311 and the second limit portion 321 are snap-fitted with the process hole of the inner plate of the hood, there is a gap between the connection positions of the two along the Y axis direction, so the mounting plate 1 and the lower pull member 3 are set at an angle to ensure that the mounting plate 1 fits with the outer side of the engine longitudinal beam, while the first limit portion 311 and the second limit portion 321 are snap-fitted with the inner plate of the hood and provide appropriate downward pulling force. When using the automobile hood processing aid in this embodiment, first connect the middle sub-adjustment to the vehicle body, and put down the hood so that the support member 7 supports the hood. Use bolts to pre-assemble the two side sub-adjustments to the corresponding outer sides of the engine compartment longitudinal beams, adjust the positions of the first limit portion 311 and the second limit portion 321, so that the first limit portion 311 and the second limit portion 321 are both clamped with the inner plate of the hood, and then tighten the bolts. In the process of tightening the bolts, the mounting plate 1 gradually fits with the outer side of the engine compartment longitudinal beam, the first limit portion 311 and the second limit portion 321 contact and gradually abut the inner plate of the hood, and the support member 7 also abuts against the inner plate of the hood. In this way, the middle position of the hood is supported by the middle sub-adjustment, and the two side sub-adjustments pull down the two sides of the hood, so that the matching relationship between the hood and the vehicle body can be ensured during the electrophoresis process, deformation is avoided, and matching accuracy is ensured.

[0032] It should be noted that the contact between the middle sub-tool and the side sub-tool and the hood in this embodiment is achieved through the elastic deformation of the hood. After the middle sub-tool and the side sub-tool are removed, the hood can be restored to its original state without causing plastic deformation. In different scenarios, the angle between the first lower pull rod and the second lower pull rod, the angle between the mounting plate 1 and the lower pull member 3, the bending angle of the first limit portion 311 and the bending angle of the second limit portion 321 can be adjusted to provide sufficient downward pulling force while avoiding plastic deformation of the hood.

[0033] Furthermore, if Figure 3-Figure 4 As shown, the support member 7 includes a first sub-support member 71, a second sub-support member 72 and a third sub-support member 73. The first sub-support member 71, the second sub-support member 72 and the third sub-support member 73 are all fixedly connected to the extension member 6, and are arranged at intervals along the length direction of the extension member 6, so that there are more support points for the cover in the middle part of the cover along the front-back direction, and the support effect is more stable. Since the height of the cover in the positive direction of the X-axis gradually decreases, that is, the rear part of the cover is higher than the front part of the cover, the first sub-support member 71 is arranged at one end of the extension member 6 close to the rear part of the cover, and the third sub-support member 73 is arranged at one end of the extension member 6 close to the front part of the cover. The second sub-support member 72 is arranged between the first sub-support member 71 and the third sub-support member 73, the height of the first sub-support member 71 is greater than the height of the second sub-support member 72, and the height of the second sub-support member 72 is greater than the height of the third sub-support member 73. Such an arrangement ensures that the first sub-support member 71, the second sub-support member 72 and the third sub-support member 73 can all reliably support the inner panel of the machine cover, avoiding the situation of loss of contact or plastic deformation.

[0034] Specifically, Figure 4 As shown, the first sub-support member 71 includes a first support rod 711 and a first support seat 712, the first support rod 711 is fixedly connected to the first support seat 712, and the connection method is preferably welding, and the first support seat 712 is used to contact the machine cover and provide support for the machine cover. The second sub-support member 72 includes a second support rod 721 and a second support seat 722, the second support rod 721 is fixedly connected to the second support seat 722, and the connection method is preferably welding, and the second support seat 722 is used to contact the machine cover and provide support for the machine cover. The third sub-support member 73 includes a third support rod 731 and a third support seat 732, the third support rod 731 is fixedly connected to the third support seat 732, and the connection method is preferably welding, and the third support seat 732 is used to contact the machine cover and provide support for the machine cover. The first support seat 712, the second support seat 722 and the third support seat 732 are preferably made of rubber or resin to prevent the first support rod 711, the second support rod 721 and the third support rod 731 from making hard contact with the machine cover and causing local injuries or scratches.

[0035] Embodiment 2

[0036] To avoid redundancy caused by repeated description, this embodiment only describes the differences from Embodiment 1. The difference between this embodiment and Embodiment 1 is that the height of the support member 7 in Embodiment 1 is not adjustable, while the height of the support member 7 in this embodiment is adjustable. By changing the height of the support member 7 to adapt to the hoods of different vehicle models, the versatility of the intermediate sub-auxiliary tool is improved.

[0037] like Figure 5 As shown, the support member 7 includes a threaded adjustment portion 702 and two support portions 701, and the two support portions 701 are respectively threadedly connected to the two ends of the threaded adjustment portion 702. One of the support portions 701 is welded to the extension member 6, and the other support portion 701 is used to support the machine cover. Both ends of the threaded adjustment portion 702 are provided with external threads, and the threads at both ends of the threaded adjustment portion 702 have opposite rotation directions, and the two support portions 701 are respectively provided with corresponding internal threads and threadedly connected thereto. When the height of the support member 7 needs to be adjusted, the threaded adjustment portion 702 is rotated. Since the threads at both ends of the threaded connection portion have opposite rotation directions, the two support portions 701 are screwed in or out relative to the threaded connection portion to achieve the purpose of changing the height of the support member 7.

[0038] Optionally, the support member 7 also includes two locking nuts 703, which have opposite rotation directions and are respectively threadedly connected to the two ends of the threaded adjustment portion 702. When the height of the support member 7 is adjusted, the two locking nuts 703 are rotated to press them against the corresponding support portion 701 to achieve locking, thereby avoiding relative rotation during use and causing changes in height.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Automobile hood pre-treatment auxiliary tool, used to connect the car body and the hood, characterized in that: include: Two side auxiliary tools, the two side auxiliary tools are respectively arranged on both sides of the vehicle body, the side auxiliary tools include a mounting plate (1) and a pull-down member (3), the mounting plate (1) is fixedly connected to the pull-down member (3), the mounting plate (1) is used to be fixedly connected to the vehicle body, and the pull-down member (3) is used to be connected to the hood; The middle sub-auxiliary tool is located between the two side sub-auxiliary tools, and the middle sub-auxiliary tool comprises a connecting frame (4) and an extension member (6). The connecting frame (4) is used to be connected to the vehicle body, and the extension member (6) is fixedly connected to the connecting frame (4) and extends along the front-rear direction of the hood. The extension member (6) is fixedly connected to a support member (7), and the support member (7) is used to support the hood.

2. The automobile hood pre-treatment auxiliary tool according to claim 1, characterized in that: The support member (7) comprises a first sub-support member (71), a second sub-support member (72) and a third sub-support member (73); the first sub-support member (71), the second sub-support member (72) and the third sub-support member (73) are arranged at intervals along the extension member (6).

3. The automobile hood pre-treatment auxiliary tool according to claim 2, characterized in that: The first sub-support member (71) is arranged at one end of the extension member (6) close to the rear part of the machine cover, the third sub-support member (73) is arranged at one end of the extension member (6) close to the front part of the machine cover, the second sub-support member (72) is arranged between the first sub-support member (71) and the third sub-support member (73), the height of the first sub-support member (71) is greater than the height of the second sub-support member (72), and the height of the second sub-support member (72) is greater than the height of the third sub-support member (73).

4. The automobile hood pre-treatment auxiliary tool according to claim 3, characterized in that: The first sub-support member (71) comprises a first support rod (711) and a first support seat (712), the first support rod (711) is fixedly connected to the first support seat (712), and the first support seat (712) is used to contact the machine cover; the second sub-support member (72) comprises a second support rod (721) and a second support seat (722), the second support rod (721) is fixedly connected to the second support seat (722), and the second support seat (722) is used to contact the machine cover; the third sub-support member (73) comprises a third support rod (731) and a third support seat (732), the third support rod (731) is fixedly connected to the third support seat (732), and the third support seat (732) is used to contact the machine cover.

5. The automobile hood pre-treatment auxiliary tool according to claim 1, characterized in that: The height of the support member (7) is adjustable.

6. The automobile hood pre-treatment auxiliary tool according to claim 5, characterized in that: The support member (7) comprises a threaded adjustment portion (702) and two support portions (701), wherein the two support portions (701) are respectively threadedly connected to two ends of the threaded adjustment portion (702), and the threads at the two ends of the threaded adjustment portion (702) have opposite rotation directions.

7. The automobile hood pre-treatment auxiliary tool according to claim 6, characterized in that: The support member (7) further comprises two locking nuts (703), and the two locking nuts (703) are respectively threadedly connected to two ends of the threaded adjustment portion (702).

8. The automobile hood pre-treatment auxiliary tool according to claim 1, characterized in that: The lower pull member (3) comprises a first pull rod (31) and a second pull rod (32), the first pull rod (31) and the second pull rod (32) are both fixedly connected to the mounting plate (1), and along the front-rear direction of the machine cover, the first pull rod (31) and the second pull rod (32) are arranged at an angle, and the first pull rod (31) and the second pull rod (32) are both used to be connected to the machine cover.

9. The automobile hood pre-treatment auxiliary tool according to claim 8, characterized in that: The end of the first pull rod (31) is bent to form a first limiting portion (311), and the first limiting portion (311) is used to be clamped with one of the process holes on the machine cover; the end of the second pull rod (32) is bent to form a second limiting portion (321), and the second limiting portion (321) is used to be clamped with another process hole on the machine cover, and the first limiting portion (311) and the second limiting portion (321) are bent in the same direction.

10. The automobile hood pre-treatment auxiliary tool according to claim 8, characterized in that: The mounting plate (1) and the pull-down member (3) are arranged at an angle.

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