A device for detecting flatness of an automobile structural member

By designing an arc-shaped insert block for coating contact testing of component surfaces and combining it with a clamping mechanism, the problem of low efficiency in manual testing was solved, achieving efficient and accurate flatness testing of automotive structural components.

CN224499371UActive Publication Date: 2026-07-14KUNSHAN YUANAO PRECISION MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN YUANAO PRECISION MASCH CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-14

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Abstract

The utility model relates to the field of flatness detection, specifically disclose a kind of automobile structural member flatness detection device, including detection mechanism main body, detection mechanism main body includes;Upper end plate, base, the upper surface array of base is equipped with detection rod, detection rod includes: outer sleeve rod, lifting rod, the upper surface of lifting rod is equipped with installation jack, the upper side of lifting rod is provided with arc insert block, the lower end of outer sleeve rod is equipped with liquid supply pipe for being installed in the inside of base, the outside of lifting rod is provided with scale line, the lower side of upper end plate is provided with clamping mechanism.The upper surface of the arc insert block above detection rod is contacted by the lower surface of control component, after because the arc insert block overall is semicircular structure component, thus then the lower surface of the component of detection overall and the paint on the upper surface of arc insert block contact, then paint will be attached on the lower surface of detection component, after detection contact is completed, the flatness of component is judged by judging the point position formed by paint on the lower surface of component.
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Description

Technical Field

[0001] This utility model relates to the field of flatness testing, specifically a flatness testing device for automotive structural components. Background Technology

[0002] Flatness inspection of automotive parts is a crucial step in ensuring the assembly accuracy, sealing performance, and stability of the entire vehicle. Current inspection methods include traditional manual measurement and non-contact intelligent integrated inspection systems. The main purpose of inspection is to ensure assembly accuracy: for example, flatness deviations in engine blocks and cylinder heads can lead to sealing failure, incomplete combustion, and affect the lifespan of the entire vehicle; sealing control: the flatness of sheet metal parts and cover plates directly affects the adhesion of sealing strips; appearance quality control: automotive interior panels, headlight housings, etc., have extremely high requirements for appearance flatness.

[0003] However, manual inspection usually involves using calipers to clamp flat structures. When the area of ​​the board is large, there are many inspection points, resulting in low inspection efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flatness detection device for automotive structural components, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a flatness testing device for automotive structural components, comprising a testing mechanism body, the testing mechanism body including: an upper end plate and a base, the upper surface of the base being arrayed with testing rods, the testing rods including: an outer sleeve rod and a lifting rod, the upper surface of the lifting rod being provided with a mounting hole, an arc-shaped insert being provided above the lifting rod, the lower end of the outer sleeve rod penetrating the interior of the base and being installed with a liquid supply pipe, the outer side of the lifting rod being provided with scale lines, and a clamping mechanism being provided below the upper end plate.

[0006] As a further embodiment of this utility model: the clamping mechanism includes: a clamping seat and a cross-shaped insert rod. The clamping seat has a component clamping rod located inside the lower part of the clamping seat, and a positive and negative threaded rod is installed inside the clamping seat. One end of the positive and negative threaded rod is located outside the clamping seat and an adjustable crank handle is installed thereon.

[0007] As a further embodiment of this utility model: a cross-shaped slot is provided inside the upper end plate on the outside of the cross-shaped insert rod, a lifting mechanism is connected between the upper end plate and the base, and a liquid supply chamber is installed on one side of the base.

[0008] As a further improvement of this utility model: the upper surface of the arc-shaped insert is coated with paint, and a piston pad is installed at the lower end of the lifting rod inside the outer sleeve rod.

[0009] As a further improvement of this utility model, a limiting rod is installed on the lower surface of the arc-shaped plug for mounting the inside of the mounting hole.

[0010] As a further embodiment of this utility model: a circular connecting rod is installed at the lower end of the cross-shaped insert rod, the component clamping rod is a Z-shaped structural component, and the component clamping rod is engaged and movably connected with the positive and negative threaded rods.

[0011] As a further improvement of this utility model, the lifting rod is movably connected to the outer sleeve rod.

[0012] As a further improvement of this utility model: the cross-shaped insert is engaged with the cross-shaped slot, and the liquid supply pipe is connected to the liquid supply chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] After the lower surface of the control component contacts the upper surface of the arc-shaped insert above the detection rod, since the arc-shaped insert is a semi-circular structure, when the lower surface of the detection component comes into contact with the paint on the upper surface of the arc-shaped insert, the paint will adhere to the lower surface of the detection component. After the detection contact is completed, the flatness of the component is judged by judging the points formed by the paint on the lower surface of the component.

[0015] By pulling the cross-shaped insert rod upwards to control the lower circular connecting rod to be in the position of the cross slot, the clamping mechanism is rotated to adjust the orientation angle of the entire component below the upper plate, so that the entire component can contact the detection rod for detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a device for detecting the flatness of automotive structural components.

[0017] Figure 2 This is a schematic diagram of the clamping mechanism in an automotive structural component flatness testing device.

[0018] Figure 3 This is a schematic diagram of the detection rod in a flatness testing device for automotive structural components.

[0019] Figure 4 This is a front view of the main body of the testing mechanism in an automotive structural component flatness testing device;

[0020] Figure 5 This is a side view of the main body of the testing mechanism in an automotive structural component flatness testing device.

[0021] In the diagram: 1. Main body of the testing mechanism; 2. Upper end plate; 3. Base; 4. Clamping mechanism; 5. Lifting mechanism; 6. Testing rod; 7. Liquid supply chamber; 201. Cross slot; 401. Clamping seat; 402. Adjustment handle; 403. Component clamping rod; 404. Cross insertion rod; 601. Outer rod; 602. Lifting rod; 603. Scale line; 604. Mounting hole; 605. Arc-shaped insertion block; 606. Liquid supply pipe. Detailed Implementation

[0022] 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.

[0023] like Figure 1-5 As shown, this embodiment provides a flatness testing device for automotive structural components, including a testing mechanism body 1. The testing mechanism body 1 includes an upper end plate 2 and a base 3. Testing rods 6 are arrayed on the upper surface of the base 3. Each testing rod 6 includes an outer sleeve rod 601 and a lifting rod 602. The upper surface of the lifting rod 602 has a mounting hole 604. An arc-shaped insert 605 is disposed above the lifting rod 602. A limit rod is installed on the lower surface of the arc-shaped insert 605 inside the mounting hole 604. The upper surface of 05 is coated with paint. The paint applied above the arc-shaped insert 605 needs to have the effect of not drying out easily and having strong adhesion. The arc-shaped insert 605 is a semi-circular structural component. The lower end of the lifting rod 602 is located inside the outer sleeve rod 601 and a piston pad is installed. The lower end of the outer sleeve rod 601 passes through the interior of the base 3 and a liquid supply pipe 606 is installed. The outer side of the lifting rod 602 is provided with a scale line 603. The lifting rod 602 is movably connected to the outer sleeve rod 601. A clamping mechanism 4 is provided below the upper end plate 2.

[0024] like Figure 2-3As shown, in this embodiment, the clamping mechanism 4 includes: a clamping seat 401 and a cross-shaped insert rod 404. A component clamping rod 403 is disposed inside the lower part of the clamping seat 401. A positive and negative threaded rod is installed inside the clamping seat 401. The component clamping rod 403 is a Z-shaped structure component. The component clamping rod 403 is engaged and movably connected with the positive and negative threaded rod. One end of the positive and negative threaded rod is located outside the clamping seat 401 and an adjusting handle 402 is installed thereon. The upper end plate 2 is located inside the cross-shaped insert rod 404. A cross-shaped slot 201 is provided on the outer side, and the cross-shaped insert rod 404 is engaged with the cross-shaped slot 201. A circular connecting rod is installed at the lower end of the cross-shaped insert rod 404. By pulling the cross-shaped insert rod 404 upward as a whole, the circular connecting rod at the lower end is controlled to be in the position of the cross-shaped slot 201, and the orientation angle of the clamping mechanism 4 below the upper end plate 2 can be controlled. A lifting mechanism 5 is connected between the upper end plate 2 and the base 3. A liquid supply chamber 7 is installed on one side of the base 3, and the liquid supply pipe 606 is connected to the liquid supply chamber 7.

[0025] The working principle of this utility model is as follows: Before testing, liquid is supplied from the liquid supply tank 7 to the liquid supply pipe 606 at the lower end of the multiple test rods 6 into the outer sleeve rod 601, thereby pushing the piston pad at the lower end of the lifting rod 602 upward, thus controlling the lifting rod 602 to move upward. After coating the arc-shaped end of the arc-shaped insert 605, the limiting rod on the lower surface of the arc-shaped insert 605 is inserted into the mounting hole 604 on the upper surface of the lifting rod 602. After placing the plate-like part to be tested between the two component clamping rods 403, the torque is applied to the adjusting handle 402, controlling the positive and negative threaded rods inside the clamping seat 401 to drive the two component clamping rods 403 to move synchronously to clamp the component. After controlling the lifting mechanism 5 to move downward, the lower surface of the component contacts the arc-shaped end of the test rod 6. After the upper surface of the insert 605 is covered, since the arc-shaped insert 605 is a semi-circular structural component, when the lower surface of the component being tested comes into contact with the paint on the upper surface of the arc-shaped insert 605, the paint will adhere to the lower surface of the component being tested. After the contact is completed, the flatness of the component is judged by the points formed by the paint on the lower surface of the component. Therefore, if there are areas where no paint is formed, the specific area can be directionally tested or leveled. At the same time, when the size of the component being tested cannot fully contact the testing rod 6 after placement, the lower circular connecting rod of the cross insert 404 can be pulled upward to control the position of the lower circular connecting rod in the cross slot 201, and the clamping mechanism 4 can be rotated to adjust the orientation angle of the whole under the upper plate 2, so that the whole component can contact the testing rod 6 for testing.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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 device for detecting the flatness of automotive structural components, comprising a detection mechanism body (1), characterized in that, The main body (1) of the detection mechanism includes: an upper end plate (2) and a base (3). The upper surface of the base (3) is arrayed with detection rods (6). The detection rods (6) include: an outer rod (601) and a lifting rod (602). The upper surface of the lifting rod (602) is provided with an installation hole (604). An arc-shaped insert (605) is provided above the lifting rod (602). The lower end of the outer rod (601) penetrates the interior of the base (3) and is installed with a liquid supply pipe (606). The outer side of the lifting rod (602) is provided with a scale line (603). A clamping mechanism (4) is provided below the upper end plate (2).

2. The flatness testing device for automotive structural components according to claim 1, characterized in that, The clamping mechanism (4) includes: a clamping seat (401) and a cross-shaped insert (404). The clamping seat (401) has a component clamping rod (403) inside its lower part. A positive and negative threaded rod is installed inside the clamping seat (401). One end of the positive and negative threaded rod is located outside the clamping seat (401) and an adjustable crank (402) is installed thereon.

3. The flatness testing device for automotive structural components according to claim 2, characterized in that, The upper end plate (2) has a cross slot (201) located on the outside of the cross insertion rod (404) inside. A lifting mechanism (5) is connected between the upper end plate (2) and the base (3). A liquid supply chamber (7) is installed on one side of the base (3).

4. The flatness testing device for automotive structural components according to claim 1, characterized in that, The upper surface of the arc-shaped insert (605) is coated with paint, and the lower end of the lifting rod (602) is fitted with a piston pad inside the outer sleeve rod (601).

5. The flatness testing device for automotive structural components according to claim 1, characterized in that, The lower surface of the arc-shaped insert (605) is used to install a limiting insert rod inside the mounting hole (604).

6. The flatness testing device for automotive structural components according to claim 2, characterized in that, The lower end of the cross-shaped insert (404) is equipped with a circular connecting rod, and the component clamping rod (403) is a Z-shaped structural component. The component clamping rod (403) is engaged and movably connected with the positive and negative threaded rod.

7. The flatness testing device for automotive structural components according to claim 1, characterized in that, The lifting rod (602) is movably connected to the outer rod (601).

8. The flatness testing device for automotive structural components according to claim 3, characterized in that, The cross-shaped insert (404) engages with the cross-shaped slot (201), and the liquid supply pipe (606) is connected to the liquid supply chamber (7).