Automobile finish paint magnetic attraction auxiliary tool

By setting a magnetic spring and magnet in the magnet seat in the car door paint auxiliary tool, and using the magnet positioning sleeve to cooperate with the inner side of the magnet seat to offset the impact force of the car door on the magnet, the problem of reduced auxiliary tool life in the existing technology is solved, and a longer service life and versatility are achieved.

CN223417502UActive Publication Date: 2025-10-10CHINA FAW CO LTD
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Patent Information

Application Number
CN202421996443.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-10-10
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

The positioning magnet method and magnetic attraction positioning of the existing door paint auxiliary tool result in a reduced life of the auxiliary tool, and the impact force of the door on the magnet during the magnetic attraction process affects the service life.

Method used

A magnetic spring and magnet are set on the inner side of the magnet seat, and the magnet positioning sleeve cooperates with the inner side of the magnet seat. The magnet passes through the magnet positioning sleeve and the end cover, changing the magnet positioning method. The magnetic spring offsets the impact force of the car door on the magnet, and the limiting structure of the magnet positioning sleeve and the end cover is used.

Benefits of technology

The service life of the auxiliary tool is prolonged, the stability of the magnet is enhanced, the reduction in service life due to differences in the door inner panel structure and the body shape is avoided, and the versatility of the auxiliary tool is improved.

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Abstract

The utility model discloses an automobile finish paint magnetic attraction auxiliary tool, which belongs to the technical field of automobile production equipment and comprises a positioning plate, one end of the positioning plate is vertically fixed at one end and the side surface of a magnet seat, a magnetic attraction spring and a magnet are sequentially arranged on the inner side of the magnet seat, and the magnetic attraction spring and the magnet are matched with the inner side of the magnet seat through a magnet positioning sleeve to limit the magnet seat. And the magnet can penetrate out of the magnet positioning sleeve. According to the automobile finish paint magnetic attraction auxiliary tool, the magnetic attraction spring and the magnet are sequentially arranged on the inner side of the magnet base, the magnetic attraction spring and the magnet are matched with the inner side of the magnet base through the magnet positioning sleeve to limit the magnet base, and the magnet positioning mode is changed through matching of the magnet and the magnet positioning sleeve; the magnetic attraction spring is adopted to counteract the impact force generated by the automobile door to the magnet during magnetic attraction, so that the service life of the auxiliary tool is prolonged, the auxiliary tool is not limited by the automobile door inner plate structure and the automobile door and automobile body modeling difference, and the auxiliary tool is high in universality.
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Description

Technical Field

[0001] The utility model discloses a magnetic suction auxiliary tool for automobile topcoat, belonging to the technical field of automobile production equipment. Background Art

[0002] Paint shops are increasingly demanding higher quality paint jobs. Most paint shops use the 4C3B process, which adds a second coat of clearcoat and drying. Most door anti-opening devices utilize magnets. During the painting process, some paint mist is inevitably attracted by the magnets, which then dry and form paint residue. When the door is opened again to paint the inner door panels, the residue falls off, resulting in substandard vehicle body quality and increased particle counts on the body-in-white door sills, necessitating repairs and increasing manual polishing time and costs. To address these issues, some factories use door topcoat fixtures. After opening the door, the magnetic fixture's hook is inserted into the inner door sill positioning hole, with the magnet facing the front of the vehicle. The latching slot engages the door sill. When the door is closed, the magnet attaches to the inner door panel, securing the door. However, existing door topcoat fixtures use a single bolt to hold the magnet in place. This can loosen over time, reducing the magnet's lifespan. Furthermore, magnetic attraction to the door requires hard contact, and the impact of the door on the magnet during magnetic attraction also reduces the overall fixture's lifespan. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that the existing door paint auxiliary tool positioning magnet method and magnetic adsorption positioning door method lead to a reduced service life of the auxiliary tool as a whole, and to provide a car paint magnetic auxiliary tool.

[0004] The problem to be solved by the present invention is achieved by the following technical solutions:

[0005] A magnetic suction auxiliary tool for automobile topcoat includes a positioning plate with one end vertically fixed to one end and side of a magnet base. A magnetic suction spring and a magnet are sequentially arranged on the inner side of the magnet base. The magnetic suction spring and the magnet cooperate with the inner side of the magnet base through a magnet positioning sleeve to limit their position, and the magnet can pass through the magnet positioning sleeve.

[0006] Preferably, the magnet positioning sleeve is sealed in the other end of the magnet base through an end cover, and the magnet can pass through the magnet positioning sleeve and the end cover in sequence.

[0007] Preferably, a magnet positioning stepped hole is provided in the magnet positioning sleeve, and the outer side of the magnet is stepped and nested with the magnet positioning stepped hole.

[0008] Preferably, the positioning plate includes a connecting portion, a transition portion and a hook portion in sequence, the end of the connecting portion is fixedly connected to the magnet seat, the connecting portion is provided with a first slot near the hook portion, and the top of the connecting portion is provided with a second slot.

[0009] Preferably, the angle between the hook portion and the transition portion is 45°-48°, and the angle between the opposite sides of the first slot is 6°-8°.

[0010] Preferably, the outer diameter of the large diameter end of the magnet is less than or equal to the inner diameter of the large diameter hole of the magnet positioning stepped hole, and the outer diameter of the small diameter end of the magnet is less than or equal to the inner diameter of the small diameter hole of the magnet positioning stepped hole.

[0011] Preferably, one end of the magnet is provided with a positioning blind hole fixedly connected to one end of the magnetic spring, and the other end of the magnetic spring is fixed to the inner top of the magnet seat.

[0012] Preferably, the outer side of the magnet positioning sleeve is provided with an external thread, the inner side of the magnet seat is provided with an internal thread that matches the external thread of the magnet positioning sleeve, and silicone pads are adhered to both sides and the inner side of the transition part and the hook part.

[0013] Preferably, at least three limiting grooves are evenly provided on the end of the magnet positioning sleeve, and limiting columns cooperating with the at least three limiting grooves are provided on the inner side of the end cover.

[0014] Preferably, a magnet seat stepped hole is provided at the other end of the magnet seat, and an end cover mounting ring is provided on the inner side of the end cover to be flange-connected with the magnet seat stepped hole.

[0015] The present invention has the following beneficial effects compared with the existing ones:

[0016] The utility model provides a magnetic suction auxiliary tool for automobile topcoat, in which a magnetic suction spring and a magnet are sequentially arranged on the inner side of a magnet seat, the magnetic suction spring and the magnet cooperate with the inner side of the magnet seat to limit their positions through a magnet positioning sleeve, the magnet positioning mode is changed by cooperating with the magnet and the magnet positioning sleeve, and the impact force generated by the car door on the magnet during magnetic attraction is offset by the magnetic suction spring, thereby improving the service life of the auxiliary tool, and the auxiliary tool is not limited by the structure of the inner panel of the car door, or the difference in the shape of the car door and the car body, and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is an isometric view of a magnetic suction auxiliary tool for automobile topcoat.

[0018] Figure 2 The utility model is a partial isometric view of a magnetic suction auxiliary tool for automobile topcoat.

[0019] Figure 3 This is a partial structural diagram of a magnetic suction auxiliary tool for automobile topcoat of the utility model.

[0020] Figure 4 The utility model is a partial isometric view of a magnetic suction auxiliary tool for automobile topcoat.

[0021] Figure 5The utility model is an isometric view of an end cover of a magnetic suction auxiliary tool for automobile topcoat.

[0022] in:

[0023] 1- Positioning plate;

[0024] 2-Silicone pad;

[0025] 3-Magnetic seat;

[0026] 4-end cap;

[0027] 5- Magnet;

[0028] 6-Magnetic spring;

[0029] 7-Magnetic positioning sleeve;

[0030] 11-magnet positioning sleeve;

[0031] 12-connecting portion;

[0032] 13-first card slot;

[0033] 14- Transition section;

[0034] 15-hook portion;

[0035] 31-magnet seat stepped hole;

[0036] 41-end cover mounting ring;

[0037] 42-limiting column;

[0038] 51- Positioning blind hole;

[0039] 71-limiting slot;

[0040] 72-Magnet positioning stepped hole. DETAILED DESCRIPTION

[0041] The following is based on the attached Figure 1-5 The utility model is further described as follows:

[0042] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0044] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] like Figure 1-3 As shown, the first embodiment of the present invention provides a magnetic suction auxiliary tool for automobile topcoat on the basis of the existing technology, including a positioning plate 1 with one end vertically welded and fixed to one end and the side of the magnet base 3, and a magnetic spring 6 and a magnet 5 are installed on the inner side of the magnet base 3 in sequence. The magnetic spring 6 and the magnet 5 cooperate with the inner side of the magnet base 3 through the magnet positioning sleeve 7 to limit it, and the magnet 5 can pass through the magnet positioning sleeve 7. The magnet positioning sleeve 7 is sealed and set in the other end of the magnet base 3 through the end cover 4. The magnet 5 can pass through the magnet positioning sleeve 7 and the end cover 4 in sequence. The structure of the above-mentioned components and the connection relationship between them will be introduced in detail below.

[0046] A magnet positioning stepped hole 72 is provided within the magnet positioning sleeve 7, and the outer side of the magnet 5 is stepped and nested with the magnet positioning stepped hole 72. The positioning plate 1 sequentially includes a connecting portion 12, a transition portion 14, and a hook portion 15. The end of the connecting portion 12 is welded and fixedly connected to the magnet base 3. The connecting portion 12 is provided with a first slot 13 near the hook portion 15, and a second slot 11 is provided at the top of the connecting portion 12. The angle between the hook portion 15 and the transition portion 14 is 45°-48°. In this embodiment, the angle between the hook portion 15 and the transition portion 14 is 48°. The angle between the opposite sides of the first slot 13 is 6-8°. In this embodiment, the angle between the opposite sides of the first slot 13 is 6°.

[0047] The outer diameter of the large diameter end of the magnet 5 is less than or equal to the inner diameter of the large diameter magnet positioning stepped hole 72, and the outer diameter of the small diameter end of the magnet 5 is less than or equal to the inner diameter of the small diameter magnet positioning stepped hole 72. One end of the magnet 5 is provided with a positioning blind hole 51 fixedly connected to one end of the magnetic attraction spring 6. The other end of the magnetic attraction spring 6 is fixed to the inner top of the magnet base 3.

[0048] The outer side of the magnet positioning sleeve 7 is provided with an external thread, the inner side of the magnet seat 3 is provided with an internal thread that matches the external thread of the magnet positioning sleeve 7, and silicone pads 2 are adhered to both sides and the inner side of the transition part 14 and the hook part 15.

[0049] like Figure 4 and 5 As shown, the end of the magnet positioning sleeve 7 is evenly provided with at least three limiting grooves 71, and the inner side of the end cap 4 is provided with a limiting post 42 that cooperates with the at least three limiting grooves 71. The other end of the magnet base 3 is provided with a magnet base stepped hole 31, and the inner side of the end cap 4 is provided with an end cap mounting ring 41 that is flange-connected and cooperates with the magnet base stepped hole 31.

[0050] The magnet 5 and the magnet positioning sleeve 7 are used to cooperate to change the magnet positioning method, and the magnetic attraction spring 6 is used to offset the impact force generated by the car door on the magnet during magnetic attraction, thereby improving the service life of the auxiliary device. It is not limited by the door inner panel structure, the door and the car body shape differences, and the auxiliary device has high versatility.

[0051] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. A magnetic suction tool for automobile topcoat, characterized in that: The invention comprises a positioning plate (1) with one end vertically fixed to one end and the side of a magnet seat (3); a magnetic spring (6) and a magnet (5) are sequentially arranged on the inner side of the magnet seat (3); the magnetic spring (6) and the magnet (5) are limited by the inner side of the magnet seat (3) through a magnet positioning sleeve (7); and the magnet (5) can pass through the magnet positioning sleeve (7).

2. The magnetic suction tool for automobile topcoat according to claim 1, characterized in that: The magnet positioning sleeve (7) is sealed and arranged in the other end of the magnet base (3) through the end cover (4), and the magnet (5) can pass through the magnet positioning sleeve (7) and the end cover (4) in sequence.

3. The magnetic suction tool for automobile topcoat according to claim 2, characterized in that: A magnet positioning stepped hole (72) is provided in the magnet positioning sleeve (7), and the outer side of the magnet (5) is stepped and nested with the magnet positioning stepped hole (72).

4. The magnetic suction tool for automobile topcoat according to claim 3, characterized in that: The positioning plate (1) comprises a connecting portion (12), a transition portion (14) and a hook portion (15) in sequence; the end of the connecting portion (12) is fixedly connected to the magnet seat (3); the connecting portion (12) is provided with a first slot (13) near the hook portion (15); and the top of the connecting portion (12) is provided with a second slot (11).

5. The magnetic suction tool for automobile topcoat according to claim 4, characterized in that: The included angle between the hook portion (15) and the transition portion (14) is 45°-48°, and the included angle of the opposite side of the first clamping groove (13) is 6°-8°.

6. A magnetic suction tool for automobile topcoat according to claim 4 or 5, characterized in that: The outer diameter of the large diameter end of the magnet (5) is smaller than or equal to the inner diameter of the large diameter hole of the magnet positioning stepped hole (72), and the outer diameter of the small diameter end of the magnet (5) is smaller than or equal to the inner diameter of the small diameter hole of the magnet positioning stepped hole (72).

7. The magnetic suction tool for automobile topcoat according to claim 6, characterized in that: One end of the magnet (5) is provided with a positioning blind hole (51) fixedly connected to one end of the magnetic spring (6), and the other end of the magnetic spring (6) is fixed to the inner top of the magnet seat (3).

8. The magnetic suction tool for automobile topcoat according to claim 7, characterized in that: The outer side of the magnet positioning sleeve (7) is provided with an external thread, the inner side of the magnet seat (3) is provided with an internal thread that matches the external thread of the magnet positioning sleeve (7), and silicone pads (2) are adhered to both sides and the inner side of the transition part (14) and the hook part (15).

9. The magnetic suction tool for automobile topcoat according to claim 8, characterized in that: At least three limiting grooves (71) are evenly arranged at the end of the magnet positioning sleeve (7), and a limiting column (42) matching with the at least three limiting grooves (71) is provided on the inner side of the end cover (4).

10. The magnetic suction tool for automobile topcoat according to claim 8 or 9, characterized in that: The other end of the magnet seat (3) is provided with a magnet seat stepped hole (31), and the inner side of the end cover (4) is provided with an end cover mounting ring (41) which is flange-connected with the magnet seat stepped hole (31).

Citation Information

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