Magnet assembly assembly positioning tool
Patent Information
- Application Number
- CN202521614005.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-07-31
AI Technical Summary
[0005]上述磁体定位工装通过在工装表面固定磁体,磁体设置为与待安装的磁体相吸,从背面将磁体吸紧在凹槽内,再用螺丝固定,凹槽内螺丝孔需要与磁体的螺丝孔精准对位,该定位方式对凹槽的尺寸要求较严格,当凹槽尺寸不够精准时可能会导致螺丝孔不对位,增加安装难度
[0015] 1. This utility model uses a removable support plate at the bottom of the through groove. Before installation, the magnetic block is supported by the support plate at a predetermined height and suspended above the groove of the small table. During installation, the screwdriver is used to screw the bottom part of the screw into the screw hole and then the support plate is removed. This changes the positioning sequence of the magnetic block installation from the original positioning of the magnetic block edge first and then the screw hole positioning to positioning the screw hole first and then the magnetic block edge positioning. This method can avoid the problem of screw hole misalignment due to insufficient groove size and reduce the installation difficulty.
Smart Images

Figure CN224765179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted magnetic table assembly technology, specifically a magnetic component assembly and positioning fixture. Background Technology
[0002] A car magnetic table is a portable table installed inside a car for placing items, working, dining, and other purposes. It uses a matrix-distributed neodymium iron boron (NdFeB) strong magnetic modules, with each magnet having a magnetic force of 2-3 kg. Encased in magnetic shielding material, the magnetic field is ensured to act only within a 1-2 cm radius of the tabletop, preventing interference with mobile phone signals or computer hard drives while providing stable multi-point adhesion to metal-cased devices.
[0003] When installing the neodymium iron boron strong magnetic module inside the small table, the mutual repulsion and attraction of the magnets can lead to inaccurate installation positioning, affecting installation accuracy and efficiency.
[0004] A search revealed a patent application with authorization announcement number CN222199539U that discloses a strong magnet assembly fixture for a magnetic small table. Glue is applied to the groove of the magnetic small table for mounting the strong magnet. Utilizing the principle of repulsion between like poles and attraction between opposite poles of magnets, the strong magnets on the table will be firmly attracted to the magnet mounting groove of the magnetic small table by the strong magnet on the fixture if their magnetic poles are correct during the assembly process.
[0005] The above-mentioned magnet positioning fixture fixes a magnet on the surface of the fixture. The magnet is set to attract the magnet to be installed. The magnet is then attracted tightly into the groove from the back and fixed with screws. The screw holes in the groove need to be precisely aligned with the screw holes of the magnet. This positioning method has strict requirements on the size of the groove. If the size of the groove is not precise enough, the screw holes may not be aligned, which increases the difficulty of installation. Utility Model Content
[0006] The purpose of this utility model is to provide a positioning fixture for assembling magnet components. By setting a through groove in the base and setting a support structure in the through groove to temporarily support the magnet and screws, the screw holes of the magnet are aligned before being fixed to the small table, thus reducing the difficulty of installation.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a magnetic component assembly and positioning fixture, including a base for placing on the surface of a magnetic small table, the upper surface of the base having a through groove for inserting the magnetic component, and both sides of the base having a support structure that can extend into the through groove to temporarily support the magnetic component.
[0008] The support structure includes a support plate and slots on both sides of the base for the support plate to extend into the through groove from the side. The slots are connected to the through groove, and an elastic structure for the support plate to move is provided in the slots.
[0009] Preferably, the magnet assembly includes a magnetic block and screws for fixing the magnetic block in the magnetic small table, and the magnetic block has a through hole in the middle for the screw to pass through.
[0010] Preferably, the elastic structure includes a slider and a spring. The slider is longitudinally slidably connected in the slot through a guide structure. The spring is fixed at the bottom of the slot. The top of the spring is fixedly connected to the slider. A sliding groove is formed in the middle of the slider. The support plate is movably inserted into the sliding groove.
[0011] Preferably, the guide structure includes guide protrusions, which are integrally formed on both sides of the inner wall of the groove, and guide grooves are provided on both sides of the slider for sliding connection of the guide protrusions.
[0012] Preferably, one end of the support piece is provided with a U-shaped groove for screws to be inserted, and the other ends of several support pieces are fixedly connected by a connecting plate. One side of the connecting plate is integrally formed with a handle to facilitate pulling the support piece outward from the base.
[0013] Preferably, the magnetic table includes a groove on the upper surface for placing a magnetic block, and a screw hole for screw thread connection is provided in the middle of the groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model uses a removable support plate at the bottom of the through groove. Before installation, the magnetic block is supported by the support plate at a predetermined height and suspended above the groove of the small table. During installation, the screwdriver is used to screw the bottom part of the screw into the screw hole and then the support plate is removed. This changes the positioning sequence of the magnetic block installation from the original positioning of the magnetic block edge first and then the screw hole positioning to positioning the screw hole first and then the magnetic block edge positioning. This method can avoid the problem of screw hole misalignment due to insufficient groove size and reduce the installation difficulty.
[0016] 2. The base and through groove of this utility model isolate the magnetic blocks from each other and limit the magnetic blocks in the through groove. Even if affected by magnetic force, the magnetic blocks will not fall out of the through groove, which can reduce the installation difficulty caused by magnetic force. Attached Figure Description
[0017] Figure 1 This is an isometric drawing of this utility model;
[0018] Figure 2 This is an exploded view of this utility model;
[0019] Figure 3 This is a schematic diagram showing the position of the support plate of this utility model when supporting the screw and the magnet;
[0020] Figure 4 This is a schematic diagram of the slider of this utility model.
[0021] In the diagram: 1. Magnetic small table; 2. Base; 3. Through slot; 4. Support plate; 5. Groove; 6. Elastic structure; 7. Magnet assembly;
[0022] 701. Magnetic block; 702. Screw; 703. Through hole;
[0023] 601. Slider; 602. Spring; 603. Slide; 604. Guide protrusion; 605. Guide groove;
[0024] 401. U-shaped groove; 402. Handle; 403. Connecting plate;
[0025] 101. Groove; 102. Screw hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-4 This utility model provides a technical solution: a magnetic component assembly and positioning fixture, including a base 2 for placing on the surface of a magnetic small table 1. The upper surface of the base 2 is provided with a through groove 3 for placing the magnetic component 7. The through groove 3 is used to accommodate the magnetic component 7. The through groove 3 separates each magnetic block 701 in an independent space, reducing the impact of displacement or collision caused by mutual repulsion or attraction between the magnetic blocks 701. Even if the magnetic block 701 is displaced by the magnetic field, the wall of the through groove 3 can prevent it from falling out, ensuring the positional stability during the installation process. Both sides of the base 2 are provided with support structures that can extend into the through groove 3 to temporarily support the magnetic component 7.
[0028] The support structure includes a support plate 4 and slots 5 on both sides of the base 2 for the support plate 4 to extend into the through groove 3 from the side. The slots 5 are connected to the through groove 3, and an elastic structure 6 for the support plate 4 to move is provided in the slots 5. The support plate 4 is horizontally inserted into the bottom of the through groove 3 from the slots 5 on both sides of the base 2, supporting the magnetic block 701 and suspending it at a predetermined height above the groove 101 of the small table. When the magnetic block 701 is lifted, the operator can first align the screw 702 with the screw hole 102 of the magnetic small table 1 and pre-tighten the screw 702. After the screw 702 is initially fixed, the support plate 4 is removed, and the magnetic block 701 naturally falls into the groove 101; this avoids misalignment of the screw hole 102 due to the size deviation of the groove 101.
[0029] It should be noted that the dimensions of the through groove 3 are set to be 1-2 mm larger in length and width than the magnetic block 701, leaving space for the alignment of the screw 702 and the screw hole 102. Once the screw hole 102 is aligned, even if the magnetic block 701 is slightly misaligned within the groove 101, it will not affect the magnetic attraction effect.
[0030] The magnet assembly 7 includes a magnetic block 701 and a screw 702 for fixing the magnetic block 701 in the magnetic small table 1. The magnetic block 701 has a through hole 703 in the middle for the screw to pass through.
[0031] The elastic structure 6 includes a slider 601 and a spring 602. The slider 601 is longitudinally slidably connected to the slot 5 via a guide structure. The spring 602 is fixed to the bottom of the slot 5, and its top end is fixedly connected to the slider 601. When the support plate 4 is not under force, the spring 602 pushes the slider 601 upward, keeping the support plate 4 in its default raised state. A groove 603 is provided in the middle of the slider 601, and the support plate 4 is movably inserted into the groove 603. The support plate 4 can move horizontally within the groove 603. When the support plate 4 is pulled away from the base 2, the magnet 701 and screw 702 can fall into the groove 101, facilitating subsequent assembly.
[0032] The guiding structure includes guide protrusions 604, which are integrally formed on both sides of the inner wall of the slot 5. Guide grooves 605 are provided on both sides of the slider 601 for sliding connection of the guide protrusions 604. The U-shaped notch at the end of the support piece 4 is used to accommodate the tail of the screw 702, so that the screw 702 is vertically suspended when pre-screwed into the magnetic block 701. Figure 3 and Figure 4 As shown.
[0033] One end of the support plate 4 has a U-shaped groove 401 for inserting screws 702. The other ends of several support plates 4 are fixedly connected by a connecting plate 403. One side of the connecting plate 403 has an integrally formed handle 402 for easily pulling the support plate 4 outward from the base 2. Multiple support plates 4 are integrated through the connecting plate 403 and controlled uniformly by the handle 402. When pulling out, all support plates 4 can be retracted simultaneously with a single pull, improving assembly efficiency.
[0034] The magnetic small table 1 includes a groove 101 on the upper surface for placing a magnetic block 701, and a screw hole 102 for threaded connection of a screw 702 is provided in the middle of the groove 101.
[0035] When using, such as Figure 1 As shown, a screw 702 is inserted into the middle of the magnetic block 701. The magnetic block 701 with the screw 702 is placed in the through slot 3. At this time, the support plate 4 supports the screw 702 and the magnetic block 701, as shown. Figure 3As shown, screw 702 is located directly above screw hole 102. After placing magnetic block 701 and screw 702 in all through slots 3, use a screwdriver to press down screw 702 and screw the tail of screw 702 into screw hole 102.
[0036] After all the screws have been screwed into the screw holes 102, pull out the handle 402 so that the support plate 4 no longer blocks the through groove 3. The magnetic block 701 is no longer supported and, under the weight of gravity, the magnetic block 701 enters the groove 101. At this point, tighten all the screws in sequence.
[0037] This assembly fixture adopts the method of first aligning the hole and then aligning the groove instead of the traditional method of first aligning the groove and then aligning the hole. This can reduce the installation difficulties caused by the misalignment of the through hole 703 of the magnetic block 701 and the screw hole 102 after the magnetic block 701 is aligned with the edge of the groove 101 due to the insufficient precision of the groove 101.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A magnet assembly assembly positioning fixture characterized by: Includes a base (2) for placing on the surface of a magnetic small table (1), the upper surface of the base (2) is provided with a through groove (3) for inserting a magnet assembly (7), and both sides of the base (2) are provided with a support structure that can extend into the through groove (3) to temporarily support the magnet assembly (7); The support structure includes a support piece (4) and slots (5) on both sides of the base (2) for the support piece (4) to extend into the through groove (3) from the side. The slots (5) are connected to the through groove (3), and an elastic structure (6) for the support piece (4) to move is provided in the slots (5).
2. The magnet assembly assembly positioning fixture of claim 1, wherein: The magnet assembly (7) includes a magnet (701) and a screw (702) for fixing the magnet (701) in the magnetic small table (1). The magnet (701) has a through hole (703) in the middle for the screw to pass through.
3. The magnet assembly assembly positioning fixture of claim 2, wherein: The elastic structure (6) includes a slider (601) and a spring (602). The slider (601) is longitudinally slidably connected in the slot (5) through a guide structure. The spring (602) is fixed at the bottom of the slot (5). The top of the spring (602) is fixedly connected to the slider (601). A groove (603) is provided in the middle of the slider (601). The support piece (4) is movably inserted into the groove (603).
4. The magnet assembly assembly positioning fixture of claim 3, wherein: The guide structure includes a guide protrusion (604), which is integrally formed on both sides of the inner wall of the groove (5). The slider (601) has guide grooves (605) on both sides for sliding connection of the guide protrusion (604).
5. The magnet assembly positioning fixture according to claim 4, characterized in that: One end of the support plate (4) is provided with a U-shaped groove (401) for screws (702) to be inserted. The other ends of several support plates (4) are fixedly connected by a connecting plate (403). One side of the connecting plate (403) is integrally formed with a handle (402) to facilitate pulling the support plate (4) out of the base (2).
6. The magnet assembly assembly positioning fixture of claim 5, wherein: The magnetic small table (1) includes a groove (101) on the upper surface for placing a magnetic block (701), and a screw hole (102) for threaded connection of a screw (702) is provided in the middle of the groove (101).
Citation Information
Patent Citations
Strong magnet assembly tool for magnetically attracting small table board
CN222199539U