Limiting tool for coating and spraying of charging port cover plate

By designing the clamping and adjustment structures, the problem of difficulty in adjusting the clamping angle during the coating spraying of the charging port cover is solved, achieving better clamping and limiting effects and adaptability, and improving the practicality of coating spraying.

CN224072348UActive Publication Date: 2026-04-03KUNSHAN JISHAN HUIJIN PLASTIC IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

During the coating and spraying process of the charging port cover, the irregular outer side makes it difficult to adjust the clamping angle of the clamping plate, resulting in a reduced clamping and limiting effect.

Method used

It adopts a clamping and adjustment structure, including a servo motor, a ball screw pair, a bevel gear and a screw nut pair. Through the cooperation of the threaded rod and the rotating sleeve, the angle of the clamping plate can be adjusted and the position fixed, which can adapt to charging port covers of different sizes.

Benefits of technology

It improves the fit and adaptability of clamping and limiting, thereby enhancing the practicality and efficiency of coating and spraying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a limiting tool for coating and spraying of a charging port cover plate, and belongs to the technical field of cover plate spraying. The limiting tool for coating and spraying of the charging port cover plate comprises a clamping structure and an adjusting structure, the clamping structure comprises a workbench, a supporting base, a driving assembly and a supporting plate, the supporting base is fixedly connected to one side of the workbench, the driving assembly is arranged in the supporting base, the supporting plate is in sliding connection with the driving assembly, and the adjusting structure is arranged on the supporting plate. The adjusting structure comprises a cylinder body, a rotating sleeve, a threaded rod and a clamping plate, the cylinder body is rotationally connected with the supporting plate, the rotating sleeve is rotationally connected with the cylinder body, and the threaded rod is in threaded connection with the rotating sleeve. According to the limiting tool for coating and spraying of the charging port cover plate, the clamping limiting angle of the clamping plate can be conveniently adjusted, the clamping face can be conveniently attached to the inclined face of the charging port cover plate, meanwhile, the limiting tool can conveniently adapt to charging port cover plates of different sizes, and the practicability of the device is improved.
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Description

Technical Field

[0001] This application relates to the field of cover plate spraying, and more specifically, to a limiting tooling for coating and spraying a charging port cover plate. Background Technology

[0002] Charging port covers are devices used to cover and protect charging interfaces, commonly found in new energy vehicles, electronic devices, and charging facilities. As a crucial component of the charging system, their core function is to ensure the safety and reliability of the charging process, while also considering practicality and aesthetics. Charging port covers typically consist of a shell, an opening / closing mechanism, and sealing components. The shell is often made of engineering plastics, metal alloys, or composite materials, requiring weather resistance, impact resistance, and corrosion resistance. The opening / closing mechanism is divided into manual and automatic types: manual mode relies on physical latches or buttons, with a simple structure and low cost; automatic mode uses a motor-driven or electromagnetic lock to achieve intelligent sensing opening and closing, improving ease of use. Sealing components often use rubber rings or silicone gaskets to ensure waterproof and dustproof performance, with some products achieving IP or higher protection ratings.

[0003] During production, the charging port cover usually needs to be coated. During the coating process, two clamping plates are used to clamp and limit the charging port cover. However, the outer side of the charging port cover is irregular, and the clamping angle of the clamping plates is not easy to adjust, which reduces the fit between the clamping plates and the charging port cover, thereby reducing the clamping and limiting effect. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a limiting fixture for coating and spraying a charging port cover, which aims to improve the problem that the clamping angle of the clamping plate is not easy to adjust due to the irregular outer side of the charging port cover, which reduces the fit between the clamping plate and the charging port cover and thus reduces the clamping and limiting effect.

[0005] This application provides a limiting fixture for coating and spraying a charging port cover, including a clamping structure and an adjusting structure. The clamping structure includes a worktable, a support base, a drive assembly, and a support plate. The support base is fixedly connected to one side of the worktable, the drive assembly is disposed inside the support base, and the support plate is slidably connected to the drive assembly. The adjusting structure includes a cylinder, a rotating sleeve, a threaded rod, and a clamping plate. The cylinder is rotatably connected to the support plate, the rotating sleeve is rotatably connected to the cylinder, the threaded rod is threadedly connected to the rotating sleeve, and the threaded rod is rotatably connected to one side of the clamping plate, while the other side of the clamping plate is rotatably connected to the support plate.

[0006] In one specific implementation, the drive assembly includes a servo motor, four ball screw pairs, bevel gears, and screw-nut pairs. The servo motor is mounted on one side of the support base. The ball screw pairs are connected to the output end of the servo motor. All four ball screw pairs are rotatably connected to the support base. One end of each of the four ball screw pairs is fixedly connected to a bevel gear, and the four bevel gears mesh with each other. The outer rings of each of the four ball screw pairs are threaded with screw-nut pairs. The screw-nut pairs are slidably connected to the support base, and the support plate is slidably connected to the screw-nut pairs.

[0007] In the above implementation process, the use of servo motors, four ball screw pairs, bevel gears and screw nut pairs allows for convenient simultaneous clamping and limiting of the four sides of the charging port cover.

[0008] In one specific implementation, bellows are fixedly connected to both sides of the lead screw nut pair, and the bellows are connected to the inner wall of the support base.

[0009] In the above implementation process, the bellows provides convenient protection and prevents paint from falling onto the surface of the lead screw nut pair during spraying.

[0010] In one specific implementation, a snap-fit ​​assembly is provided on one side of the lead screw and nut pair. The snap-fit ​​assembly includes a positioning rod, a fixing block, a sliding rod, a slider, and a spring. The positioning rod is fixedly connected to one side of the support plate. The fixing block is disposed on one side of the lead screw and nut pair. The positioning rod is slidably connected to the fixing block. The sliding rod is slidably connected to the fixing block and snap-fitted to the positioning rod. The slider is connected to the sliding rod and slidably connected to the fixing block. The spring is sleeved on the sliding rod.

[0011] In the above implementation process, the position of the support plate can be easily fixed by setting up positioning rods, fixing blocks, sliding rods, sliders and springs.

[0012] In one specific implementation, a plurality of slots are evenly provided on one side of the positioning rod, and the slide rod engages with the slots.

[0013] In the above implementation process, the support plate can be easily fixed in different positions by engaging the slide rod with the slot, which can easily adapt to charging port covers of different sizes.

[0014] In one specific implementation, a pull block is provided at one end of the slide bar.

[0015] In the above implementation process, by setting a pull block at one end of the slide bar, the user can easily pull the slide bar, saving time and effort.

[0016] In one specific implementation, a bearing is embedded on one side of the rotating sleeve, and the cylinder body is interference-fitted with the inner ring of the bearing.

[0017] In the above process, the interference fit between the cylinder and the inner ring of the bearing facilitates the rotational connection between the rotating sleeve and the cylinder, reducing the losses caused by the rotation of the rotating sleeve.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: the setting of the cylinder, rotating sleeve and threaded rod makes it easy to adjust the clamping limit angle of the clamping plate, which improves the practicality of the device. The setting of the snap-fit ​​component makes it easy to fix the support plate in different positions, thereby adjusting the position of the clamping plate and making it easy to adapt to charging port covers of different sizes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a limiting tooling structure for coating and spraying a charging port cover, provided in an embodiment of this application.

[0021] Figure 2 A top cross-sectional view of the drive component provided in an embodiment of this application;

[0022] Figure 3 A schematic diagram illustrating the connection relationship between the ball screw pair, support plate, and clamping plate provided in the embodiments of this application;

[0023] Figure 4 A schematic cross-sectional view of the adjustment structure provided in this application embodiment;

[0024] Figure 5 This is a cross-sectional structural diagram of the snap-fit ​​assembly provided in an embodiment of this application.

[0025] In the diagram: 10-Clamping structure; 110-Worktable; 120-Support base; 130-Drive assembly; 131-Servo motor; 132-Ball screw pair; 133-Bevel gear; 134-Screw and nut pair; 140-Support plate; 150-Bellpipe; 160-Snap-fit ​​assembly; 161-Positioning rod; 162-Fixing block; 163-Slide rod; 164-Slider; 165-Spring; 170-Slot; 20-Adjusting structure; 210-Cylinder; 220-Rotating sleeve; 230-Threaded rod; 240-Clamping plate. Detailed Implementation

[0026] The technical solutions in 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.

[0027] Please see Figure 1 This application provides a limiting fixture for coating and spraying a charging port cover, including a clamping structure 10 and an adjusting structure 20.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The clamping structure 10 includes a worktable 110, a support base 120, a drive assembly 130, and a support plate 140. The support base 120 is fixedly connected to one side of the worktable 110, the drive assembly 130 is disposed inside the support base 120, and the support plate 140 is slidably connected to the drive assembly 130.

[0029] In a specific configuration, the drive assembly 130 includes a servo motor 131, four ball screw pairs 132, bevel gears 133, and screw-nut pairs 134. The servo motor 131 is mounted on one side of the support base 120. The ball screw pairs 132 are connected to the output end of the servo motor 131. All four ball screw pairs 132 are rotatably connected to the support base 120. One end of each of the four ball screw pairs 132 is fixedly connected to a bevel gear 133, and the four bevel gears 133 mesh with each other. The outer ring of each of the four ball screw pairs 132 is threaded with a screw-nut pair 134. The screw-nut pair 134 is slidably connected to the support base 120, and the support plate 140 is slidably connected to the screw-nut pair 134. The configuration of the servo motor 131, the four ball screw pairs 132, the bevel gears 133, and the screw-nut pair 134 allows for convenient simultaneous clamping and limiting of the four sides of the charging port cover.

[0030] In the specific setup, bellows 150 are fixedly connected to both sides of the lead screw nut assembly 134. The bellows 150 is connected to the inner wall of the support base 120. The bellows 150 provides convenient protection and prevents paint from falling onto the surface of the lead screw nut assembly 134 during spraying.

[0031] In a specific configuration, a snap-fit ​​assembly 160 is provided on one side of the lead screw nut assembly 134. The snap-fit ​​assembly 160 includes a positioning rod 161, a fixing block 162, a sliding rod 163, a slider 164, and a spring 165. The positioning rod 161 is fixedly connected to one side of the support plate 140. The fixing block 162 is located on one side of the lead screw nut assembly 134. The positioning rod 161 is slidably connected to the fixing block 162, the sliding rod 163 is slidably connected to the fixing block 162, the sliding rod 163 is snap-fitted to the positioning rod 161, the slider 164 is connected to the sliding rod 163, the slider 164 is slidably connected to the fixing block 162, and the spring 165 is sleeved on the sliding rod 163. The positioning rod 161, the fixing block 162, the sliding rod 163, the slider 164, and the spring 165 facilitate the fixation of the position of the support plate 140.

[0032] In the specific design, several slots 170 are evenly provided on one side of the positioning rod 161, and the slide rod 163 engages with the slots 170. The engagement of the slide rod 163 with the slots 170 allows the support plate 140 to be easily fixed in different positions, facilitating the adaptation to charging port covers of different sizes.

[0033] In the specific configuration, a pull block is provided at one end of the slide bar 163. By providing a pull block at one end of the slide bar 163, the user can easily pull the slide bar 163, saving time and effort.

[0034] Please see Figure 1 , Figure 3 and Figure 4 The adjusting structure 20 includes a cylinder 210, a rotating sleeve 220, a threaded rod 230, and a clamping plate 240. The cylinder 210 is rotatably connected to the support plate 140, the rotating sleeve 220 is rotatably connected to the cylinder 210, the threaded rod 230 is threadedly connected to the rotating sleeve 220, the threaded rod 230 is rotatably connected to one side of the clamping plate 240, and the other side of the clamping plate 240 is rotatably connected to the support plate 140.

[0035] In a specific configuration, a bearing is embedded on one side of the rotating sleeve 220, and the cylinder 210 is interference-fitted with the inner ring of the bearing. The interference fit between the cylinder 210 and the inner ring of the bearing facilitates the rotational connection between the rotating sleeve 220 and the cylinder 210, reducing the losses caused by the rotation of the rotating sleeve 220.

[0036] The working principle of this limiting fixture for coating and spraying charging port covers is as follows: When using the limiting fixture for coating and spraying charging port covers, the charging port cover to be coated and sprayed is placed on one side of the support base 120. According to the shape of the charging port cover, the threaded rod 230 is extended and retracted by rotating the rotating sleeve 220, which drives the clamping plate 240 to rotate on one side of the support plate 140, thereby realizing the adjustment of the clamping angle and facilitating the contact between the clamping surface and the inclined surface of the charging port cover, thus improving the practicality of the device. When the support plate 140 is moved to a suitable position according to the size of the charging port cover, the sliding rod 16... 3. Under the action of spring 165, the slot 170 of the positioning rod 161 is embedded to lock the support plate 140. Pulling the pull block can release the lock and realize the position adjustment of the support plate 140 to adapt to different specifications of cover plates. By turning on the servo motor 131, the ball screw pair 132 is driven to rotate. The four screws are synchronously operated through the meshing of the four bevel gears 133, which drives the screw nut pair 134 to slide along the axis of the support seat 120, pushing the support plate 140 to move towards the center of the workpiece, so that the four clamping plates 240 simultaneously clamp and limit the four sides of the charging port cover plate.

[0037] It should be noted that the specific model and specifications of the servo motor 131 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0038] The power supply and principle of the servo motor 131 are clear to those skilled in the art and will not be described in detail here.

[0039] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A limiting fixture for coating and spraying a charging port cover, characterized in that, include The clamping structure (10) includes a worktable (110), a support base (120), a drive assembly (130), and a support plate (140). The support base (120) is fixedly connected to one side of the worktable (110), the drive assembly (130) is disposed inside the support base (120), and the support plate (140) is slidably connected to the drive assembly (130). The adjustment structure (20) includes a cylinder (210), a rotating sleeve (220), a threaded rod (230), and a clamping plate (240). The cylinder (210) is rotatably connected to the support plate (140), the rotating sleeve (220) is rotatably connected to the cylinder (210), the threaded rod (230) is threadedly connected to the rotating sleeve (220), the threaded rod (230) is rotatably connected to one side of the clamping plate (240), and the other side of the clamping plate (240) is rotatably connected to the support plate (140).

2. The limiting fixture for coating and spraying a charging port cover as described in claim 1, characterized in that, The drive assembly (130) includes a servo motor (131), four ball screw pairs (132), bevel gears (133), and a screw nut pair (134). The servo motor (131) is mounted on one side of the support base (120). The ball screw pairs (132) are connected to the output end of the servo motor (131). All four ball screw pairs (132) are rotatably connected to the support base (120). One end of each of the four ball screw pairs (132) is fixedly connected to the bevel gear (133). The four bevel gears (133) mesh with each other. The outer ring of each of the four ball screw pairs (132) is threaded with the screw nut pair (134). The screw nut pair (134) is slidably connected to the support base (120). The support plate (140) is slidably connected to the screw nut pair (134).

3. The limiting fixture for coating and spraying a charging port cover as described in claim 2, characterized in that, Both sides of the lead screw nut pair (134) are fixedly connected with bellows (150), and the bellows (150) are connected to the inner wall of the support base (120).

4. The limiting fixture for coating and spraying a charging port cover according to claim 2, characterized in that, A snap-fit ​​assembly (160) is provided on one side of the lead screw nut pair (134). The snap-fit ​​assembly (160) includes a positioning rod (161), a fixing block (162), a sliding rod (163), a slider (164), and a spring (165). The positioning rod (161) is fixedly connected to one side of the support plate (140). The fixing block (162) is located on one side of the lead screw nut pair (134). The positioning rod (161) is slidably connected to the fixing block (162). The sliding rod (163) is slidably connected to the fixing block (162). The sliding rod (163) is snap-fitted to the positioning rod (161). The slider (164) is connected to the sliding rod (163). The slider (164) is slidably connected to the fixing block (162). The spring (165) is sleeved on the sliding rod (163).

5. The limiting fixture for coating and spraying a charging port cover according to claim 4, characterized in that, The positioning rod (161) has several slots (170) evenly distributed on one side, and the slide rod (163) engages with the slots (170).

6. The limiting fixture for coating and spraying a charging port cover according to claim 4, characterized in that, A pull block is provided at one end of the slide bar (163).

7. The limiting fixture for coating and spraying a charging port cover as described in claim 1, characterized in that, A bearing is fitted on one side of the rotating sleeve (220), and the cylinder (210) is interference-fitted with the inner ring of the bearing.