Positioning tool for automobile bottom guard plate

By combining the working base, positioning mating plate, and magnetic suction components, the problem of inaccurate manual positioning is solved, achieving high-precision positioning and fixing of the car underbody protection plate and improving processing quality.

CN224182912UActive Publication Date: 2026-05-01GUANGDONG YAXIN NON-METALLIC MATERIALS TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG YAXIN NON-METALLIC MATERIALS TECH CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional methods of manually positioning and fixing car underbody panels are prone to inaccurate positioning due to human factors, which affects processing quality.

Method used

The system employs a combination of a working base, a positioning and mating plate, an electromagnet, and a magnetic attraction component to achieve precise positioning and fixation of the car underbody protection plate through magnetic attraction.

Benefits of technology

Reduce human interference, improve positioning accuracy, and enhance processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning tool for an automobile bottom protection plate. The positioning tool comprises a working base, a positioning matching plate, a plurality of electromagnets and a plurality of magnetic attraction assemblies. A plurality of mounting grooves are formed in the top face of the working base, the electromagnets are mounted in the corresponding mounting grooves correspondingly, the working base is used for containing the to-be-machined automobile bottom guard plate, the positioning matching plate is used for abutting against the top face of the to-be-machined automobile bottom guard plate, and the magnetic attraction assemblies are all arranged on the top face of the positioning matching plate. The electromagnets and the magnetic attraction assemblies are in one-to-one correspondence, and the magnetic attraction assemblies are used for being matched with the corresponding electromagnets in a magnetic attraction mode so as to position the automobile bottom protection plate to be machined. According to the scheme, the problem that the machining quality of the automobile bottom guard plate is affected due to the fact that the situation of inaccurate positioning is prone to occurring due to interference of human factors such as the skill level, the operation proficiency degree and the fatigue degree of workers when the automobile bottom guard plate to be machined is manually positioned and fixed traditionally is solved.
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Description

A positioning fixture for automotive underbody protection plates Technical Field

[0001] This utility model relates to the field of automotive underbody protection plate processing technology, specifically a positioning fixture for automotive underbody protection plates. Background Technology

[0002] In today's booming automotive manufacturing industry, the quality of automotive underbody protection panels, as a crucial protective component of the vehicle's chassis system, directly impacts the vehicle's lifespan, driving safety, and overall performance. Currently, automotive underbody protection panels are generally produced using compression molding machines. After compression molding, screw holes need to be machined into the molded panels. During this process, to ensure the accuracy of subsequent processing, the panels must be positioned and fixed. However, traditionally, this positioning and fixing relies primarily on manual methods. This method is prone to inaccuracies due to human factors such as worker skill level, operational proficiency, and fatigue, thus affecting the processing quality of the underbody protection panels. Summary of the Invention

[0003] To address the aforementioned shortcomings, this utility model proposes a positioning fixture for automotive underbody protection plates. The purpose is to solve the problem that traditional manual positioning and fixing of automotive underbody protection plates is prone to inaccurate positioning due to human factors such as the skill level, operational proficiency, and fatigue of the workers, which in turn affects the processing quality of the automotive underbody protection plates.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A positioning fixture for an automotive underbody protection plate includes a working base, a positioning mating plate, several electromagnets, and several magnetic attraction components.

[0006] The top surface of the working base is provided with several mounting slots, and several electromagnets are respectively installed inside the corresponding mounting slots. The working base is used to place the car underbody protection plate to be processed. The positioning and mating plate is used to abut against the top surface of the car underbody protection plate to be processed. Several magnetic suction components are all disposed on the top surface of the positioning and mating plate. The several electromagnets and several magnetic suction components are in a one-to-one correspondence. The several magnetic suction components are respectively used to form a magnetic attraction with the corresponding electromagnet to position the car underbody protection plate to be processed.

[0007] Preferably, a plurality of the mounting slots are evenly distributed around the periphery of the working base, and a plurality of the magnetic suction components are evenly distributed around the periphery of the positioning mating plate.

[0008] Preferably, the magnetic suction assembly includes an inverted concave mounting bracket, a connecting rod, and a magnet; the bottom of the inverted concave mounting bracket is mounted on the top surface of the positioning mating plate, the connecting rod passes through the top of the inverted concave mounting bracket in the vertical direction, the magnet is fixed to the bottom end of the connecting rod, and the magnet is located inside the inverted concave mounting bracket.

[0009] Preferably, it further includes four inverted L-shaped pressure blocks, all of which are installed on the top surface of the positioning and mating plate and are evenly distributed on the rear side of the positioning and mating plate. The inverted L-shaped pressure blocks are used to press the first protrusion on the rear side of the car underbody protection plate to be processed.

[0010] Preferably, the top surface of the working base is further provided with four first protrusions and three second protrusions; the four first protrusions are evenly distributed on the rear side of the working base, and the three second protrusions are evenly distributed on the front side of the working base. The first protrusions are used to cooperate with the first groove on the rear side of the underbody protection plate to be processed, and the second protrusions are used to cooperate with the second groove on the front side of the underbody protection plate to be processed.

[0011] Preferably, it also includes a base plate, which is mounted on the bottom surface of the working base.

[0012] Preferably, each of the mounting slots has an elongated opening at its inner bottom, and the base plate has a plurality of wire-passing holes. The elongated openings correspond one-to-one with the wire-passing holes, and the elongated openings are connected to the corresponding wire-passing holes.

[0013] The technical solution provided by this utility model can include the following beneficial effects:

[0014] In this solution, the positioning and fixing of the car underbody protection plate to be processed is achieved through the coordinated cooperation of the working base, the positioning and mating plate, the electromagnets, and the magnetic attraction components. Compared with the traditional method of positioning and fixing the car underbody protection plate to be processed by manual means, this solution can effectively reduce the interference of human factors, thereby improving the positioning accuracy of the car underbody protection plate to be processed and thus improving the processing quality of the car underbody protection plate. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the positioning fixture for an automotive underbody protection plate;

[0016] Figure 2 is an exploded view of a positioning fixture for an automotive underbody protection plate;

[0017] Figure 3 is a magnified view of region A in Figure 2;

[0018] Figure 4 is a magnified view of region B in Figure 2.

[0019] The components include: 1. Working base; 2. Positioning and mating plate; 3. Electromagnet; 4. Magnetic suction assembly; 5. Car underbody protection plate to be processed; 6. Inverted L-shaped pressure block; 7. Base plate; 11. Mounting groove; 12. First boss; 13. Second boss; 41. Inverted concave mounting bracket; 42. Connecting rod; 43. Magnet block; 51. First protrusion; 52. Second protrusion; 70. Through hole for wires; 110. Long strip opening. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] A positioning fixture for an automotive underbody protection plate includes a working base 1, a positioning mating plate 2, several electromagnets 3, and several magnetic attraction components 4.

[0025] The top surface of the working base 1 is provided with a plurality of mounting slots 11, and a plurality of electromagnets 3 are respectively installed inside the corresponding mounting slots 11. The working base 1 is used to place the car underbody protection plate 5 to be processed. The positioning and mating plate 2 is used to abut against the top surface of the car underbody protection plate 5 to be processed. A plurality of magnetic attraction components 4 are all disposed on the top surface of the positioning and mating plate 2. The plurality of electromagnets 3 and the plurality of magnetic attraction components 4 are in a one-to-one correspondence. The plurality of magnetic attraction components 4 are respectively used to form a magnetic attraction fit with the corresponding electromagnet 3 to position the car underbody protection plate 5 to be processed.

[0026] As shown in Figures 1, 2, and 4, this solution provides a positioning fixture for an automotive underbody protection plate. Several electromagnets 3 are electrically connected to a power source (not shown in the figures). The operator controls the energization or de-energization of the electromagnets 3 by controlling the power switch. When positioning the automotive underbody protection plate 5 to be processed, the operator first places the plate on the top surface of the working base 1, then places the positioning mating plate 2 on top of the plate. Finally, the operator energizes all the electromagnets 3, allowing them to magnetically attract and engage with their corresponding magnetic components 4. Under the magnetic force between the electromagnets 3 and the magnetic components 4, the automotive underbody protection plate 5 is precisely positioned and fixed on the working base 1.

[0027] In this solution, the working base 1, the positioning and mating plate 2, the several electromagnets 3, and the several magnetic attraction components 4 work together to achieve the positioning and fixing of the car underbody protection plate 5 to be processed. Compared with the traditional method of positioning and fixing the car underbody protection plate to be processed by manual means, this solution can effectively reduce the interference of human factors, thereby improving the positioning accuracy of the car underbody protection plate to be processed, and thus improving the processing quality of the car underbody protection plate.

[0028] Preferably, a plurality of mounting slots 11 are evenly distributed around the periphery of the working base 1, and a plurality of magnetic suction components 4 are evenly distributed around the periphery of the positioning mating plate 2. In this embodiment, as shown in Figures 1-2, since a plurality of mounting slots 11 are evenly distributed around the periphery of the working base 1, and a plurality of magnetic suction components 4 are evenly distributed around the periphery of the positioning mating plate 2, it is ensured that the magnetic force generated between the electromagnet 3 installed in the mounting slot 11 and the magnetic suction components 4 is evenly distributed on the car underbody protection plate 5 to be processed, thereby ensuring the accuracy and stability of the positioning of the car underbody protection plate 5 to be processed.

[0029] Preferably, the magnetic attraction assembly 4 includes an inverted concave mounting bracket 41, a connecting rod 42, and a magnet block 43. The bottom of the inverted concave mounting bracket 41 is mounted on the top surface of the positioning mating plate 2. The connecting rod 42 passes through the top of the inverted concave mounting bracket 41 in a vertical direction. The magnet block 43 is fixed to the bottom end of the connecting rod 42 and is located inside the inverted concave mounting bracket 41. In this embodiment, as shown in FIG3, the inverted concave mounting bracket 41 is configured to provide a stable bearing platform for the entire magnetic attraction assembly 4. The magnet block 43 is connected to the inverted concave mounting bracket 41 through the connecting rod 42 arranged in a vertical direction, forming a vertical rigid constraint to ensure that the direction of the magnetic attraction force is perpendicular to the positioning reference plane, effectively eliminating the positioning error caused by the deviation of the magnetic attraction force.

[0030] Preferably, the system also includes four inverted L-shaped pressure blocks 6. All four inverted L-shaped pressure blocks 6 are installed on the top surface of the positioning and fitting plate 2, and are evenly distributed on the rear side of the positioning and fitting plate 2. The inverted L-shaped pressure blocks 6 are used to press against the first protrusion 51 on the rear side of the underbody protection plate 5 to be processed. In this embodiment, as shown in Figure 2, since the rear side of the underbody protection plate 5 to be processed has four first protrusions 51, when the operator places the positioning and fitting plate 2 on the top surface of the underbody protection plate 5 to be processed, the four inverted L-shaped pressure blocks 6 respectively press against the corresponding first protrusions 51 on the underbody protection plate 5 to be processed. This enhances the fixing effect of the underbody protection plate 5 to be processed, ensuring its stability during subsequent processing.

[0031] Preferably, the top surface of the working base 1 is further provided with four first protrusions 12 and three second protrusions 13; the four first protrusions 12 are evenly distributed on the rear side of the working base 1, and the three second protrusions 13 are evenly distributed on the front side of the working base 1. The first protrusions 12 are used to cooperate with the first groove 51 on the rear side of the underbody protection plate 5 to be processed, and the second protrusions 13 are used to cooperate with the second groove 52 on the front side of the underbody protection plate 5 to be processed.

[0032] In this embodiment, as shown in Figure 2, since the rear side of the car underbody protection plate 5 to be processed is provided with four first protrusions 51 and the front side is provided with three second protrusions 52, when the worker places the car underbody protection plate 5 to be processed on the top surface of the working base 1, the four first protrusions 12 can cooperate with the corresponding first protrusions 51 respectively, and the three second protrusions 13 can cooperate with the corresponding second protrusions 52 respectively, so as to achieve precise positioning of the processed car underbody protection plate 5 on the working base 1.

[0033] Preferably, it also includes a base plate 7, which is installed on the bottom surface of the working base 1. In this embodiment, as shown in FIG1, the base plate 7 is configured to provide uniform and reliable support force to the working base 1, effectively dispersing various stresses that the working base 1 may be subjected to during operation, and preventing the working base 1 from tilting or being damaged due to uneven force.

[0034] Preferably, each of the mounting slots 11 has an elongated opening 110 at its inner bottom, and the base plate 7 has a plurality of wire-passing holes 70. The elongated openings 110 and wire-passing holes 70 correspond one-to-one, and are connected. In this embodiment, as shown in Figure 4, when the electromagnet 3 is installed inside the mounting slot 11, since the bottom of the electromagnet 3 is electrically connected to the power source via a wire (not shown in the figure), the elongated openings 110 and the wire-passing holes 70 provide space for the wires to run, ensuring that the electromagnet 3 can be energized normally.

[0035] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A positioning fixture for an automotive underbody protection plate, characterized in that: The device includes a working base, a positioning and mating plate, several electromagnets, and several magnetic attraction components. The top surface of the working base has several mounting slots, and the electromagnets are respectively installed inside the corresponding mounting slots. The working base is used to place the automotive underbody protection plate to be processed. The positioning and mating plate is used to abut against the top surface of the automotive underbody protection plate to be processed. The magnetic attraction components are all disposed on the top surface of the positioning and mating plate. There is a one-to-one correspondence between the electromagnets and the magnetic attraction components. Each magnetic attraction component is used to form a magnetic attraction with its corresponding electromagnet to position the automotive underbody protection plate to be processed.

2. The positioning fixture for an automotive underbody protection plate according to claim 1, characterized in that: Several mounting slots are evenly distributed around the periphery of the working base, and several magnetic suction components are evenly distributed around the periphery of the positioning and mating plate.

3. The positioning fixture for an automotive underbody protection plate according to claim 1, characterized in that: The magnetic assembly includes an inverted concave mounting bracket, a connecting rod, and a magnet block; the bottom of the inverted concave mounting bracket is mounted on the top surface of the positioning mating plate, the connecting rod passes through the top of the inverted concave mounting bracket in the vertical direction, the magnet block is fixed to the bottom end of the connecting rod, and the magnet block is located inside the inverted concave mounting bracket.

4. The positioning fixture for an automotive underbody protection plate according to claim 1, characterized in that: It also includes four inverted L-shaped pressure blocks, all of which are installed on the top surface of the positioning and mating plate. The four inverted L-shaped pressure blocks are evenly distributed on the rear side of the positioning and mating plate. The inverted L-shaped pressure blocks are used to press the first protrusion on the rear side of the car underbody protection plate to be processed.

5. The positioning fixture for an automotive underbody protection plate according to claim 1, characterized in that: The top surface of the working base is also provided with four first protrusions and three second protrusions; the four first protrusions are evenly distributed on the rear side of the working base, and the three second protrusions are evenly distributed on the front side of the working base. The first protrusions are used to cooperate with the first groove on the rear side of the car underbody protection plate to be processed, and the second protrusions are used to cooperate with the second groove on the front side of the car underbody protection plate to be processed.

6. The positioning fixture for an automotive underbody protection plate according to claim 1, characterized in that: It also includes a base plate, which is mounted on the bottom surface of the working base.

7. The positioning fixture for an automotive underbody protection plate according to claim 6, characterized in that: The bottom of each of the mounting slots is provided with an elongated opening, and the base plate is provided with a number of wire-passing holes. The elongated openings correspond one-to-one with the wire-passing holes, and the elongated openings are connected to the corresponding wire-passing holes.