Electric vehicle center cover assembly tool
By designing an assembly fixture for the electric vehicle center cover with support columns and adjustment modules, the safety hazards of two-handed operation and the difficulty of adjusting the fixing frame during the charging connector assembly process are solved, realizing a convenient and efficient assembly process and wide applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-03
AI Technical Summary
The assembly process of existing electric vehicle charging connectors and center covers requires the use of both hands, which poses safety hazards and is inconvenient. Furthermore, the existing mounting brackets cannot be adjusted to adapt to changes in different models and specifications, resulting in time-consuming and labor-intensive processes.
An assembly fixture for an electric vehicle center cover was designed, including a support column, a fixing column, and an adjustment module. The support column supports the center cover, the fixing column holds the nut and restricts its rotation, and the adjustment module adjusts the position of the fixing column so that the nut is aligned with the installation position, thereby achieving the connection between the screw and the nut.
It improves the convenience and versatility of charging connector assembly, avoids the safety hazards of two-handed operation, and can adapt to different charging connectors and screws and nuts, simplifying the assembly process.
Smart Images

Figure CN224075665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle assembly technology, and in particular to an assembly tooling for an electric vehicle center cover. Background Technology
[0002] One of the assembly steps for electric vehicles involves installing the charging connector onto the center cover, and then securing the center cover to the vehicle. Currently, the assembly process for the charging connector and center cover is as follows: the center cover is placed on a bracket, the charging connector is placed in its corresponding position on the center cover, screws are passed through the charging connector and center cover, and then, holding the nut in one hand and a screwdriver in the other, the screw and nut are connected together to secure the charging connector and center cover. This method has the following problems:
[0003] 1. The operation requires the use of both hands, and the nut may rotate during the screwing process, causing injury to the operator's fingers. In addition, the operation is quite cumbersome.
[0004] 2. When the model of the charging connector, the installation position of the charging connector of the center cover, or the size of the screws and nuts changes, the existing fixing bracket cannot be adjusted. A new fixing bracket needs to be redesigned and manufactured according to the changes, which is time-consuming and labor-intensive.
[0005] The technical problem that this utility model needs to solve is: how to improve the versatility and convenience of assembling the charging connector into the center cover. Utility Model Content
[0006] The main purpose of this utility model is to provide an assembly fixture for the center cover of an electric vehicle. By setting a support column to support the center cover, placing the nut on the fixed column, adjusting the adjustment module according to the installation position of the charging connector on the center cover, so that the nut is aligned with the installation position, and then passing the screw through the charging connector and the center cover and connecting it to the nut. In this way, the worker does not need to hold the nut by hand, and the fixed column can be adjusted according to the installation position of the charging connector on the center cover, improving the versatility and convenience of the assembly fixture.
[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0008] An electric vehicle center cover assembly fixture is suitable for assembling a charging connector onto a center cover using screws and nuts. The center cover has a through-hole for the screw to pass through. The fixture comprises a base, an adjustment module, a fixing post, and a support post. The support post is connected to the base and supports the center cover. The fixing post is detachably connected to the adjustment module and holds the nut, restricting its rotation. The adjustment module is connected to the base and adjusts the position of the fixing post so that the inner hole of the nut aligns with the connecting hole.
[0009] Preferably, there are two support columns; the two support columns are symmetrically arranged on the base; each support column includes a vertical section, a horizontal section, and a transverse section; one end of the vertical section is connected to the base along its length, and the other end is connected to one end of the horizontal section along its length; the horizontal section extends from front to back along its length, and the other end of the horizontal section is connected to one end of the transverse section along its length, the horizontal section being used to support the bottom of the central cover and restrict the left and right movement of the central cover; the transverse section extends from left to right along its length, and the transverse section is used to fit into the groove of the central cover to restrict the front and back movement of the central cover.
[0010] Preferably, the fixing column is detachably connected to the adjustment module by means of threaded connection or snap-fit connection.
[0011] Preferably, the fixing post extends vertically along its length, the bottom end of the fixing post is connected to the adjustment module, the top surface of the fixing post is provided with a groove, the shape of the groove matches the shape of the nut, the groove is used for placing the nut; the bottom surface of the groove is provided with a through hole, the through hole is used for inserting the screw.
[0012] Preferably, the base is provided with a second locking element;
[0013] The adjustment module includes a movable frame, a first locking member, and a connecting member; the movable frame is connected to the base and can slide back and forth; the second locking member is connected to the movable frame to restrict the movable frame from sliding on the base; the connecting member is connected to the movable frame and can slide left and right; the first locking member is connected to the connecting member to restrict the connecting member from sliding on the movable frame.
[0014] The fixing post is detachably connected to the connector.
[0015] Preferably, the movable frame is provided with a first strip-shaped through hole and a second strip-shaped through hole that are vertically through and spaced apart. The length direction of the first strip-shaped through hole extends from front to back, and the length direction of the second strip-shaped through hole extends from left to right. The second locking member passes through the first strip-shaped through hole and is threadedly connected to the base. The connecting member is provided with a sliding part, which is inserted into the second strip-shaped through hole to realize the sliding connection between the connecting member and the movable frame. The first locking member is threadedly connected to the sliding part.
[0016] Preferably, along the depth direction of the second through hole, the length of the sliding part is smaller than the depth of the second through hole.
[0017] Preferably, both the first locking member and the second locking member are wing screws.
[0018] Compared with existing technologies, this solution has the following advantages:
[0019] The assembly fixture in this case is detachably connected to the adjustment module via fixed posts, allowing for the replacement of different fixed posts to accommodate different nuts. The adjustment module can then be set up to adjust the position of the fixed posts on the base, thereby meeting the needs of different charging connectors and screws and nuts of different specifications, and improving the versatility of the assembly fixture.
[0020] Secondly, the central cover is supported by a support column, and the fixed column can also support the installation position of the charging connector of the central cover. The nut is pre-placed in the fixed column. The operator only needs to place the charging connector in the installation position of the charging connector of the central cover, and then use a screw-driving device to pass the screw through the charging connector and the central cover, and connect and tighten it with the nut on the fixed column. It does not require the operator to operate with both hands at the same time, which is convenient for the operator and improves the ease of assembly. Attached Figure Description
[0021] Figure 1 This is a structural schematic diagram of the electric vehicle center cover assembly fixture in Example 1;
[0022] Figure 2 This is a front view of the electric vehicle center cover assembly fixture of Example 1;
[0023] Figure 3 This is a structural schematic diagram of the electric vehicle center cover assembly fixture (including the center cover) for Example 1;
[0024] Figure 4 This is a schematic diagram of the connector structure in Example 1;
[0025] Figure 5 This is a top view of the fixed column in Example 1;
[0026] Figure 6 This is a schematic diagram of the structure of the central cover in Example 1.
[0027] The components include: base 1; adjustment module 2; fixed column 3; support column 4; center cover 5; charging connector 6; second locking component 11; moving frame 21; first locking component 22; connector 23; groove 31; through hole 32; vertical section 41; horizontal section 42; transverse section 43; side plate 51; gap 52; connecting hole 53; first strip-shaped through hole 211; second strip-shaped through hole 212; and sliding part 231. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application implemented as described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Example 1
[0030] refer to Figure 1-6 An assembly fixture for an electric vehicle center cover 5 is disclosed, suitable for assembling a charging connector 6 onto the center cover 5 using screws and nuts. The center cover 5 has a through-hole 53 for the screw to pass through. The assembly fixture comprises a base 1, an adjustment module 2, a fixing post 3, and a support post 4. The support post 4 is connected to the base 1 and supports the center cover 5. The fixing post 3 is detachably connected to the adjustment module 2 and places the nut and restricts its rotation. The adjustment module 2 is connected to the base 1 and adjusts the position of the fixing post 3 so that the inner hole of the nut is aligned with the connection hole 53.
[0031] In this embodiment, the center cover 5 has side plates 51 on both sides; the side plates 51 have multiple mounting parts, with gaps 52 between the mounting parts, and also have through connecting holes 53.
[0032] In this embodiment, the specific operation process of the assembly tooling is as follows: The operator adjusts the adjustment module 2 according to the connection hole 53 in the center cover 5, so that the fixing post 3 is aligned with the connection hole 53. Then, a fixing post 3 with a height that can contact the bottom of the center cover 5 and is compatible with the nut used is selected and connected to the adjustment module 2. After adjustment, the nut is placed on the fixing post 3, and then the center cover 5 is placed on the support post 4. The support post 4 can limit the offset of the center cover 5. Then, the charging connector 6 is placed in the installation position of the charging connector 6 in the center cover 5. The operator passes the screw through the charging connector 6 and the connection hole 53 and contacts the nut on the fixing post 3. Finally, the operator uses a screwdriver to tighten the screw and nut, thereby assembling the charging connector 6 onto the center cover 5.
[0033] Preferably, there are two support columns 4; the two support columns 4 are symmetrically arranged on the base 1; each support column 4 includes a vertical section 41, a horizontal section 42, and a transverse section 43; one end of the vertical section 41 along its length is connected to the base 1, and the other end is connected to one end of the horizontal section 42 along its length; the horizontal section 42 extends from front to back along its length, and the other end of the horizontal section 42 along its length is connected to one end of the transverse section 43 along its length; the horizontal section 42 is used to support the bottom of the center cover 5 and restrict the left and right movement of the center cover 5; the transverse section 43 extends from left to right along its length, and the transverse section 43 is used to fit into the groove 31 of the center cover 5 to restrict the front and back movement of the center cover 5.
[0034] In this embodiment, the support column 4 is connected to the base 1 via a vertical section 41, and the horizontal section 42 and the transverse section 43 form a cantilever located above the base 1. When the center cover 5 is placed on the support column 4, the horizontal section 42 contacts the bottom and side plate 51 of the center cover 5, thereby restricting the left and right movement of the center cover 5 and supporting the center cover 5. At the same time, the transverse section 43 will be inserted into the gap 52 of the center cover 5, restricting the front and back movement of the center cover 5. In this way, not only can the center cover 5 be placed stably on the support column 4, but also, since the support column 4 is only connected to the base 11 via the vertical section 41, the obstruction between the center cover 5 and the base 1 is reduced, making it easier for workers to place or remove the center cover 5, and leaving more space to place the connection cable of the charging connector 6.
[0035] Preferably, the fixing column 3 is detachably connected to the adjustment module 2 by means of threaded connection or snap-fit connection.
[0036] In this embodiment, the fixing column 3 preferably adopts a threaded connection to achieve a detachable connection between the fixing column 3 and the adjustment module 2. Through the threaded connection, the fixing column 3 can be more stably connected to the adjustment module 2 when the screws are tightened, and can more firmly support the center cover 5.
[0037] Preferably, the fixing post 3 extends vertically in the length direction, the bottom end of the fixing post 3 is connected to the adjustment module 2, the top surface of the fixing post 3 is provided with a groove 31, the shape of the groove 31 matches the shape of the nut, the groove 31 is used for placing the nut; the bottom surface of the groove 31 is provided with a through hole 32, the through hole 32 is used for inserting the screw.
[0038] In this embodiment, the nut is placed in the groove 31, and the shape of the groove 31 matches the shape of the nut, so that the nut will not rotate when the screw and nut are tightened. Secondly, a through hole 32 is provided at the bottom of the groove 31. As the screw is gradually tightened with the nut, the free end of the screw will gradually pass through the nut. The function of the through hole 32 is to provide a space for the free end of the screw, thereby ensuring that the screw and nut can connect the center cover 5 and the charging connector 6 together.
[0039] Preferably, the base 1 is provided with a second locking member 11;
[0040] The adjustment module 2 includes a movable frame 21, a first locking member 22, and a connecting member 23. The movable frame 21 is connected to the base 1 and can slide back and forth. The second locking member 21 is connected to the movable frame 21 to restrict the sliding of the movable frame 21 on the base 1. The connecting member 23 is connected to the movable frame 21 and can slide left and right. The first locking member 22 is connected to the connecting member 23 to restrict the sliding of the connecting member 23 on the movable frame 21.
[0041] The fixing post 3 is detachably connected to the connector 23.
[0042] In this embodiment, the charging connector 6 is assembled onto the central cover 5 by two screws. The central cover 5 has two connection holes 53. At this time, there are two fixing posts 3 and two connecting parts 23. The fixing posts 3 and the connecting parts 23 are connected one by one. One fixing post 3 is used to place one nut.
[0043] The specific operation procedure of adjustment module 2 is as follows: release the restriction of the second locking member 11 on the moving frame 21, move the moving frame 21 to the installation position of the charging connector 6 in the center cover 5, and then tighten the second locking member 11 to fix the moving frame 21. Release the restriction of the first locking member 22 on the connecting member 23, move the connecting member 23 so that the connecting member 23 is aligned with the screw hole of the installation position of the charging connector 6 in the center cover 5. After alignment, tighten the first locking member 22 to fix the connecting member 23. After adjustment, select a suitable fixing post 3 and connect it to the connecting member 23, so that the fixing post 3 can both support the bottom of the center cover 5 and place the nut in the fixing post 3, which is convenient for screws and nuts to be tightened.
[0044] Preferably, the movable frame 21 is provided with a first strip-shaped through hole 211 and a second strip-shaped through hole 212 that are vertically through and spaced apart. The length direction of the first strip-shaped through hole 212 extends from front to back, and the length direction of the second strip-shaped through hole 212 extends from left to right. The second locking member 11 passes through the first strip-shaped through hole 211 and is threadedly connected to the base 1. The connecting member 23 is provided with a sliding part 231, which is inserted into the second strip-shaped through hole 212 to realize the sliding connection between the connecting member 23 and the movable frame 21. The first locking member 22 is threadedly connected to the sliding part 231.
[0045] In this embodiment, the sliding mechanism 21 slides on the base 1 as follows: the second locking member 11 passes through the first strip-shaped through hole 211 and is threadedly connected to the base 1. Since the second locking member 11 can restrict the left and right movement of the sliding mechanism 21, the sliding mechanism 21 can move back and forth on the base 1 with the cooperation of the second strip-shaped through hole 212 and the second locking member 11. The connecting member 23 is provided with a sliding part 231, which can slide within the second strip-shaped through hole 212 to adjust the position of the connecting member 23. After adjustment, the first locking member 22 is tightened to fix the connecting member 23.
[0046] Preferably, along the depth direction of the second through hole 32, the length of the sliding part 231 is smaller than the depth of the second through hole 212.
[0047] In this embodiment, the thickness of the sliding part 231 is less than the depth of the second strip-shaped through hole 212. After adjusting the position of the connector 23, after tightening the first locking member 22, the bottom of the connector 23 and the first locking member 22 will be pressed against the movable frame 21, thereby fixing the connector 23 on the movable frame 21.
[0048] Preferably, both the first locking member 22 and the second locking member 11 are wing screws.
[0049] In this embodiment, wing screws are used, eliminating the need for additional equipment for tightening and making it easier for workers to operate. Wing screws are existing technology, and this application will not elaborate on them further. Specific models can be selected according to actual needs.
[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A tooling for assembling a center cover of an electric vehicle, suitable for assembling a charging connector onto a center cover using screws and nuts, wherein the center cover has a through-hole for the screw to pass through, characterized in that, The electric vehicle center cover assembly fixture includes a base, an adjustment module, a fixing column, and a support column; the support column is connected to the base and is used to support the center cover; the fixing column is detachably connected to the adjustment module and is used to place the nut and restrict the rotation of the nut; the adjustment module is connected to the base and is used to adjust the position of the fixing column so that the inner hole of the nut is aligned with the connecting hole.
2. The electric vehicle center cover assembly fixture according to claim 1, characterized in that, The number of support columns is two; the two support columns are symmetrically arranged on the base; each support column includes a vertical section, a horizontal section, and a transverse section; one end of the vertical section is connected to the base along its length, and the other end is connected to one end of the horizontal section along its length; the horizontal section extends from front to back along its length, and the other end of the horizontal section is connected to one end of the transverse section along its length; the horizontal section is used to support the bottom of the central cover and restrict the left and right movement of the central cover; the transverse section extends from left to right along its length, and the transverse section is used to fit into the groove of the central cover to restrict the front and back movement of the central cover.
3. The electric vehicle center cover assembly fixture according to claim 1, characterized in that, The fixing column is detachably connected to the adjustment module by means of threaded connection or snap-fit connection.
4. The electric vehicle center cover assembly fixture according to claim 1, characterized in that, The fixing post extends vertically along its length. The bottom end of the fixing post is connected to the adjustment module. The top surface of the fixing post is provided with a groove. The shape of the groove matches the shape of the nut. The groove is used for placing the nut. The bottom surface of the groove is provided with a through hole for inserting the screw.
5. The electric vehicle center cover assembly fixture according to claim 1, characterized in that, The base is provided with a second locking element; The adjustment module includes a movable frame, a first locking member, and a connecting member; the movable frame is connected to the base and can slide back and forth; the second locking member is connected to the movable frame to restrict the movable frame from sliding on the base; the connecting member is connected to the movable frame and can slide left and right; the first locking member is connected to the connecting member to restrict the connecting member from sliding on the movable frame. The fixing post is detachably connected to the connector.
6. The electric vehicle center cover assembly fixture according to claim 5, characterized in that, The movable frame is provided with a first strip-shaped through hole and a second strip-shaped through hole that are vertically through and spaced apart. The length direction of the first strip-shaped through hole extends from front to back, and the length direction of the second strip-shaped through hole extends from left to right. The second locking member passes through the first strip-shaped through hole and is threadedly connected to the base. The connecting member is provided with a sliding part, which is inserted into the second strip-shaped through hole to realize the sliding connection between the connecting member and the movable frame. The first locking member is threadedly connected to the sliding part.
7. The electric vehicle center cover assembly fixture according to claim 6, characterized in that, Along the depth direction of the second strip-shaped through hole, the length dimension of the sliding part is smaller than the depth dimension of the second strip-shaped through hole.
8. The electric vehicle center cover assembly fixture according to claim 6, characterized in that, Both the first and second locking components are wing screws.