Concentric pre-positioning device for hinge pin of small charging door

Abstract

The utility model relates to a concentric pre-positioning device for a hinge pin of a charging wicket, and belongs to the technical field of charging wicket assembly. The guiding device comprises a guiding shaft and a shaft positioning seat, the shaft positioning seat is arranged on the machine frame, a shaft hole is formed in the shaft positioning seat, a hinge hole for the hinge pin to be inserted is formed in the small charging door, and the guiding shaft can penetrate through the shaft hole and is inserted into the hinge hole to conduct concentric pre-positioning on the hinge hole of the small charging door. The driving air cylinder is used for adjusting the position of the shaft positioning seat, and the shaft positioning seat is connected with the rack through the driving air cylinder. The guiding shaft is manually controlled to penetrate through the hinge hole of the charging small door, and real-time adjustment can be carried out through hand feeling according to the alignment condition of the hinge part and the hinge hole of the gooseneck part. The device is simple in structure, convenient to operate and capable of conducting concentric alignment on hinge holes of a preassembled charging small door, and preparation is made for follow-up automatic hinge pin insertion.

Description

Technical Field

[0001] This utility model relates to a concentric pre-positioning device for the hinge pin of a charging door, belonging to the field of charging door assembly technology. Background Technology

[0002] Vehicles not only improve people's quality of life but also provide convenience for travel. Under the pressure of energy and environmental protection, new energy vehicles will undoubtedly become the future direction of automobile development. For new energy vehicles, the charging port is a frequently used area. The charging port of a new energy vehicle has the function of protecting the charging port, and we use it every time we charge a new energy vehicle.

[0003] The charging door includes a housing, a cover plate, a hinge pin for hinged connection between the housing and the cover plate, and a torsion spring. The cover plate has a gooseneck, the housing has a hinge part with a hinge hole for the hinge pin to pass through, and the gooseneck has a hinge hole for the hinge pin to pass through. The gooseneck is installed at the hinge part, the hinge pin is inserted into the hinge hole, and then the torsion spring is installed to complete the assembly of the charging door.

[0004] Currently, the assembly of charging doors is mostly done manually. Manual assembly involves the manual insertion of hinge pins and torsion springs, which is labor-intensive and prone to inconsistencies in quality due to human error, sometimes resulting in improper assembly. Therefore, it is considered to automate the installation of the hinge pins and torsion springs in the charging door assembly. This requires first resolving the alignment issue of the two hinge holes after the pre-assembly of the housing and cover plate. If the hinge holes are not aligned, the subsequent automatic installation of the hinge pins and torsion springs cannot proceed. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a concentric pre-positioning device for the hinge pin of a charging door.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A concentric pre-positioning device for the hinge pin of a charging door includes a guide shaft and a shaft positioning seat. The shaft positioning seat is set on a frame and has a shaft hole. The charging door has a hinge hole for the hinge pin to be inserted. The guide shaft can pass through the shaft hole and be inserted into the hinge hole to concentrically pre-position the hinge hole of the charging door.

[0007] The beneficial effects of this utility model are as follows: the gooseneck on the cover of the charging door is pre-installed into the hinge part of the housing. Then, the pre-installed charging door is placed at the concentric pre-positioning device. The guide shaft is manually inserted into the shaft hole of the shaft positioning seat and extends through the hinge hole of the pre-installed charging door. The guide shaft is manually controlled to pass through the hinge part and the hinge hole of the gooseneck. Real-time adjustment can be made by hand based on the alignment of the hinge part and the hinge hole of the gooseneck. This avoids the situation where the hinge pin automatically inserts if the charging door is not pre-installed correctly, which could damage the guide shaft or the charging door. Of course, manual alignment does not involve the installation of the hinge pin and torsion spring, and the labor intensity for workers is not very high. This utility model has a simple structure and is easy to operate. It can concentrically align the hinge hole of the pre-installed charging door, preparing for the subsequent automated insertion of the hinge pin.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the insertion end of the shaft hole has a tapered structure.

[0010] The advantage of adopting the above-mentioned further solution is that the operation of inserting the guide shaft into the shaft hole is more convenient and faster.

[0011] Furthermore, it also includes a drive cylinder for adjusting the position of the shaft positioning seat, the shaft positioning seat being connected to the frame via the drive cylinder.

[0012] The beneficial effect of adopting the above-mentioned further solution is that, specifically, the cylinder body of the drive cylinder can be mounted on the frame, and the piston rod of the drive cylinder can be connected to the shaft positioning seat. The adjustment of the shaft positioning seat by the drive cylinder can be limited to adjusting the reset of the shaft positioning seat. The operation of the shaft positioning seat approaching the charging door can be a manual action, such as manually pressing down the shaft positioning seat in its original position to move it to the working position. In the working position, the end face of the shaft positioning seat can act on the end face of the hinge hole of the charging door. The reset from the working position to the original position is achieved by the action of the drive cylinder. Of course, the positional change between the original position and the working position of the shaft positioning seat can also be adjusted by the extension and retraction of the drive cylinder.

[0013] Furthermore, the shaft positioning seat is mounted on the frame or drive cylinder via a guide limiting mechanism.

[0014] Furthermore, the guide limiting mechanism includes a slide rail and a slider adapted to the slide rail. The slide rail is mounted on the frame or drive cylinder, and the slider is mounted on the shaft positioning seat.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the guiding and limiting mechanism can specifically include a slide rail and a slider adapted to the slide rail. For example, the slide rail can be set on the frame or the cylinder body of the drive cylinder, and the slider can be set on the shaft positioning seat. Under the action of the guiding and limiting mechanism, the shaft positioning seat can slide along the length direction of the slide rail and slide along a set direction on the frame or the cylinder body of the drive cylinder, reducing the radial force on the drive cylinder. The position of the shaft positioning seat relative to the frame can be guided, limited, and adjusted by the cooperation of the slide rail and the slider. For example, when placing the charging door product, the shaft positioning seat can move away from the placement position of the charging door, which facilitates the positioning of the charging door. After the charging door is placed, the guide shaft is inserted into the shaft hole of the shaft mounting seat and then through the hinge hole of the charging door. The shaft positioning seat can then be moved closer to the charging door. The end face of the shaft positioning seat can also abut against the end face of the hinge hole of the charging door to achieve stable positioning of the shaft positioning seat, which facilitates accurate guiding and positioning of the guide shaft and ensures the pre-positioning effect of the guide shaft.

[0016] Furthermore, the guide shaft is connected to the frame via a traction member, and the guide shaft is provided with a traction hole.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, when in use, the guide shaft is inserted into the shaft hole of the shaft positioning seat, and when not in use, the guide shaft can be connected to the frame by a traction component such as a traction rope to prevent the guide shaft from being lost.

[0018] Furthermore, it also includes a pin constraint mechanism for constraining the free end of the hinge pin that abuts the guide shaft, the pin constraint mechanism being disposed on the frame.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, during assembly, the free end of the articulated pin will mate with the pre-installed guide shaft. Since the guide shaft will exert force on the free end of the articulated pin during the mate process, there will be a problem affecting the positioning stability of the articulated pin. Therefore, a pin constraint mechanism is set up. At the mate position between the articulated pin and the guide shaft, the free end of the articulated pin can be constrained by the pin constraint mechanism, which solves the problem of the stability of the articulated pin when mates with the guide shaft, thereby meeting the requirements of assembly stability and assembly quality of the articulated pin.

[0020] Furthermore, the pin constraint mechanism is located below the shaft positioning seat, and there is a space between the pin constraint mechanism and the shaft positioning seat for accommodating the hinge of the charging door.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the pin constraint mechanism is located below the hinge of the charging door. The guide shaft is inserted into the shaft hole of the shaft positioning seat and passes through the hinge hole of the charging door. The hinge pin moves close to the free end of the guide shaft. At the same time as it docks with the guide shaft, the pin constraint mechanism can be activated. The free end of the hinge pin can pass through the pin constraint mechanism. In this way, the hinge pin will not have unstable positioning due to the force of docking, which will affect the assembly of the hinge pin. This prepares for the subsequent hinge pin to be accurately ejected from the guide shaft and inserted into the hinge hole of the charging door.

[0022] Furthermore, the pin constraint mechanism includes a pair of constraint clamps and a constraint cylinder for driving the pair of constraint clamps to clamp or release. When the pair of constraint clamps clamp, they can form a constraint hole for the free end of the hinge pin to pass through.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the pin constraint mechanism can specifically be a pair of constraint clamps. When the free end of the hinge pin approaches the guide shaft, the constraint clamps can hold it under the action of the constraint cylinder to form a constraint hole for the hinge pin to pass through. As the free end of the hinge pin passes through the constraint hole and then docks with the guide shaft, the constraint hole can constrain the hinge pin. This ensures the stability and positioning accuracy of the hinge pin when it docks with the guide shaft, and makes full preparation for the subsequent hinge pin to push the guide shaft out and insert into the hinge hole of the charging door.

[0024] Furthermore, it also includes an adjusting cylinder for adjusting the position of the pin restraint mechanism, the pin restraint mechanism being connected to the frame via the adjusting cylinder.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the pin constraint mechanism must not only solve the problem of stable positioning when the articulated pin is engaged, but also must not hinder the assembly of the articulated pin. Therefore, the position of the pin constraint mechanism is designed to be adjustable. When needed, the pin constraint mechanism can move to the working position. After the articulated pin is engaged, the pin constraint mechanism can be withdrawn from the working position in time, and the articulated pin can continue to act until it pushes out the guide shaft to complete the assembly of the articulated pin. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0027] Figure 2 This is a structural schematic diagram of the guide shaft disengaged from the shaft positioning seat in Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the concentric pre-positioning state of the hinge hole of the charging door in Embodiment 1 of this utility model;

[0029] Figure 4This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the guide shaft in the state of being disengaged from the shaft positioning seat in Embodiment 2 of this utility model;

[0031] Figure 6 for Figure 4 Front view structural diagram;

[0032] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure along the AA direction;

[0033] Figure 8 This is a structural diagram of the present invention in use;

[0034] Figure 9 This is a structural schematic diagram of the articulated pin and guide shaft in the docking state of this utility model;

[0035] Figure 10 A schematic diagram of the charging port structure;

[0036] In the diagram, 1 is the frame; 2 is the guide shaft; 21 is the traction hole; 3 is the shaft positioning seat; 31 is the shaft hole; 4 is the drive cylinder; 5 is the constraint clamp; 6 is the constraint hole; 7 is the constraint cylinder; 8 is the adjusting cylinder; 9 is the slide rail; 10 is the slider; 11 is the charging door; 111 is the housing; 112 is the cover plate; 113 is the hinge hole; and 114 is the hinge pin. Detailed Implementation

[0037] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0038] Example 1, such as Figures 1-3 and Figure 10 As shown, a concentric pre-positioning device for the hinge pin of a charging door includes a guide shaft 2 and a shaft positioning seat 3. The shaft positioning seat 3 is mounted on a frame 1 and has a shaft hole 31. The shaft hole 31 corresponds to the insertion position of the hinge pin 114 of the charging door 11. The charging door 11 has a hinge hole 113 for the hinge pin 114 to be inserted. The guide shaft 2 can pass through the shaft hole 31 and be inserted into the hinge hole 113 to concentrically pre-position the hinge hole of the charging door 11.

[0039] The insertion end of the shaft hole 31 has a tapered structure. This makes the insertion of the guide shaft 2 into the shaft hole 31 more convenient and faster.

[0040] It also includes a drive cylinder 4 for adjusting the position of the shaft positioning seat 3, and the shaft positioning seat 3 is connected to the frame 1 through the drive cylinder 4. Specifically, the cylinder body of the drive cylinder 4 can be mounted on the frame 1, and the piston rod of the drive cylinder 4 can be connected to the shaft positioning seat 3. The adjustment of the shaft positioning seat 3 by the drive cylinder 4 can be limited to adjusting the reset of the shaft positioning seat 3. The operation of the shaft positioning seat 3 approaching the charging door 11 can be done manually, such as manually pressing down the shaft positioning seat 3 in its original position to move it to the working position. In the working position, the end face of the shaft positioning seat 3 acts on the end face of the hinge hole 113 of the charging door 11. The reset from the working position to the original position is achieved by the action of the drive cylinder 4. Of course, the positional change between the original position and the working position of the shaft positioning seat 3 can also be achieved by extending and retracting the drive cylinder 4.

[0041] The shaft positioning seat 3 is mounted on the frame 1 or the drive cylinder 4 via a guide and limiting mechanism. The guide and limiting mechanism includes a slide rail 9 and a slider 10 adapted to the slide rail 9. The slide rail 9 is mounted on the frame 1 or the drive cylinder 4, and the slider 10 is mounted on the shaft positioning seat 3. Specifically, the guide and limiting mechanism may include a slide rail 9 and a slider 10 adapted to the slide rail 9. For example, the slide rail 9 may be mounted on the frame 1 or the cylinder body of the drive cylinder 4, and the slider 10 may be mounted on the shaft positioning seat 3. Under the action of the guide and limiting mechanism, the shaft positioning seat 3 can slide along the length of the slide rail 9 and slide along a set direction on the frame 1 or the cylinder body of the drive cylinder 4, reducing the radial force on the drive cylinder 4. The position of the shaft positioning seat 3 relative to the frame 1 can be guided, limited, and adjusted through the cooperation of the slide rail 9 and the slider 10.

[0042] When placing the charging door 11, the shaft positioning seat 3 can be moved away from the charging door 11 to facilitate its placement. After the charging door 11 is placed, the guide shaft 2 is inserted into the shaft hole 31 of the shaft mounting seat and then through the hinge hole 113 of the charging door 11. The shaft positioning seat 3 can then be moved closer to the charging door 11. The end face of the shaft positioning seat 3 can also be abutted against the end face of the hinge hole 113 of the charging door 11 to achieve stable positioning of the shaft positioning seat 3, which facilitates accurate guidance and positioning of the guide shaft 2 and ensures the pre-positioning effect of the guide shaft 2.

[0043] The guide shaft 2 is connected to the frame 1 via a traction member, and the guide shaft 2 is provided with a traction hole 21. The traction member can be a traction rope. In use, the guide shaft 2 is inserted into the shaft hole 31 of the shaft positioning seat 3. When not in use, the traction member, such as a traction rope, can be used to establish a connection between the guide shaft and the frame 1 to prevent the guide shaft 2 from being lost.

[0044] Example 2, as Figures 4-10As shown, based on Embodiment 1, a pin constraint mechanism is further included for constraining the free end of the hinge pin 114 that docks with the guide shaft 2. The pin constraint mechanism is disposed on the frame 1. During assembly, the free end of the hinge pin 114 docks with the pre-installed guide shaft 2. Since the guide shaft 2 applies force to the free end of the hinge pin 114 during the docking process, it may affect the positioning stability of the hinge pin 114. Therefore, a pin constraint mechanism is provided. At the docking position between the hinge pin 114 and the guide shaft 2, the free end of the hinge pin can be constrained by the pin constraint mechanism, thereby solving the problem of the hinge pin's stability when docking with the guide shaft 2, and thus meeting the requirements for the assembly stability and assembly quality of the hinge pin.

[0045] The pin constraint mechanism is located below the shaft positioning seat 3, and a space is provided between the pin constraint mechanism and the shaft positioning seat 3 to accommodate the hinge of the charging door 11. The pin constraint mechanism is positioned below the hinge of the charging door 11. The guide shaft 2 is inserted into the shaft hole 31 of the shaft positioning seat 3 and passes through the hinge hole 113 of the hinge of the charging door 11. The hinge pin moves near the free end of the guide shaft 2. At the same time as it docks with the guide shaft 2, the pin constraint mechanism can be activated. The free end of the hinge pin can pass through the pin constraint mechanism. In this way, the hinge pin will not be unstable in positioning due to the force of docking, which will affect the assembly of the hinge pin. This prepares for the subsequent hinge pin to be accurately pushed out of the guide shaft 2 and inserted into the hinge hole 113 of the charging door 11.

[0046] The pin constraint mechanism includes a pair of constraint clamps 5 and a constraint cylinder 7 for driving the clamps 5 to clamp or release. When the clamps 5 are engaged, they form a constraint hole 6 for the free end of the hinge pin to pass through. Specifically, the pin constraint mechanism can be a pair of constraint clamps 5. When the free end of the hinge pin approaches the guide shaft 2, the constraint clamps 5, under the action of the constraint cylinder 7, can hold the pin and form the constraint hole 6 for the hinge pin to pass through. As the free end of the hinge pin passes through the constraint hole 6 and then engages with the guide shaft 2, the constraint hole 6 can constrain the hinge pin. This ensures the stability and positioning accuracy of the hinge pin when it engages with the guide shaft 2, and prepares the hinge pin for the subsequent insertion of the guide shaft 2 into the hinge hole 113 of the charging door 11.

[0047] It also includes an adjusting cylinder 8 for adjusting the position of the pin restraint mechanism, which is connected to the frame 1 via the adjusting cylinder 8. The pin restraint mechanism must solve the problem of stable positioning during articulated pin engagement, while also not hindering the assembly of the articulated pin. Therefore, the position of the pin restraint mechanism is designed to be adjustable. This allows the pin restraint mechanism to move to the working position when needed, and to promptly retract from the working position after the articulated pin engagement, allowing the articulated pin to continue functioning until it pushes out the guide shaft 2, completing the articulated pin assembly.

[0048] The gooseneck on the cover plate 112 of the charging door 11 of this utility model is pre-installed into the hinge part of the housing 111. Then, the pre-installed charging door 11 is placed at the concentric pre-positioning device. The guide shaft 2 is manually inserted into the shaft hole 31 of the shaft positioning seat 3 and extends through the hinge hole 113 of the pre-installed charging door 11. The guide shaft 2 is manually controlled to pass through the hinge part and the hinge hole 113 of the gooseneck. It can be adjusted in real time by hand according to the alignment of the hinge part and the hinge hole 113 of the gooseneck, and there will be no problem if the charging door 11 is not properly aligned. If the pre-installed hinge pin is not in place, automatic insertion may damage the guide shaft 2 or the charging door 11. The guide shaft 2 can pre-position the hinge hole 113 of the charging door 11. The hinge hole 113 with the guide shaft 2 inserted is accurately concentrically aligned. When installing the hinge pin later, it is only necessary to ensure that the hinge pin is aligned with the guide shaft 2, which prepares for the automatic insertion of the hinge pin of the charging door 11. When the hinge pin is installed, the hinge pin can approach the guide shaft and push the guide shaft out of the hinge hole, realizing the automatic installation of the charging door hinge pin.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concentric pre-positioning device for a hinge pin of a charging door, characterized in that, Includes a guide shaft (2) and a shaft positioning seat (3). The shaft positioning seat (3) is mounted on the frame (1). The shaft positioning seat (3) has a shaft hole (31). The charging door (11) has a hinge hole (113) for the hinge pin to be inserted. The guide shaft (2) can pass through the shaft hole (31) and be inserted into the hinge hole (113) to pre-position the hinge hole of the charging door (11) concentrically.

2. The concentric pre-positioning device for the hinge pin of the charging door according to claim 1, characterized in that, The insertion end of the shaft hole (31) has a tapered structure.

3. The concentric pre-positioning device for the hinge pin of the charging door according to claim 1, characterized in that, It also includes a drive cylinder (4) for adjusting the position of the shaft positioning seat (3), the shaft positioning seat (3) being connected to the frame (1) via the drive cylinder (4).

4. The concentric pre-positioning device for the hinge pin of the charging door according to claim 3, characterized in that, The shaft positioning seat (3) is mounted on the frame (1) or the drive cylinder (4) via a guide limiting mechanism.

5. The concentric pre-positioning device for the hinge pin of the charging door according to claim 4, characterized in that, The guide limiting mechanism includes a slide rail (9) and a slider (10) adapted to the slide rail (9). The slide rail (9) is mounted on the frame (1) or the drive cylinder (4), and the slider is mounted on the shaft positioning seat (3).

6. The concentric pre-positioning device for the hinge pin of a charging door according to any one of claims 1-5, characterized in that, The guide shaft (2) is connected to the frame (1) via a traction member, and the guide shaft (2) is provided with a traction hole (21).

7. The concentric pre-positioning device for the hinge pin of a charging door according to any one of claims 1-5, characterized in that, It also includes a pin constraint mechanism for constraining the hinge pin (114) that mates with the guide shaft (2), the pin constraint mechanism being disposed on the frame (1).

8. The concentric pre-positioning device for the hinge pin of the charging door according to claim 7, characterized in that, The pin constraint mechanism is located below the shaft positioning seat (3), and there is a space between the pin constraint mechanism and the shaft positioning seat (3) for accommodating the hinge of the charging door (11).

9. The concentric pre-positioning device for the hinge pin of the charging door according to claim 7, characterized in that, The pin restraint mechanism includes a pair of restraint clamps (5) and a restraint cylinder (7) for driving the pair of restraint clamps (5) to clamp or release. When the pair of restraint clamps (5) clamp, they can form a restraint hole (6) for the free end of the hinge pin to pass through.

10. The concentric pre-positioning device for the hinge pin of the charging door according to claim 7, characterized in that, It also includes an adjusting cylinder (8) for adjusting the position of the pin restraint mechanism, which is connected to the frame (1) via the adjusting cylinder (8).

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