Section opening size detection tool for automobile doorsill beam

By designing a testing fixture that includes a base, upright plate, negative pressure mechanism and scanning panel, the problem of low efficiency in manual testing is solved, and efficient and accurate testing of the cross-sectional opening size of automobile door sill beams is achieved.

CN224262444UActive Publication Date: 2026-05-19CHONGQING LINGHAI VISION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING LINGHAI VISION TECHNOLOGY CO LTD
Filing Date
2025-07-28
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, the cross-sectional opening size detection of automobile door sill beams relies on manual tools for measurement, which is inefficient and depends on the operator's experience, resulting in low detection efficiency.

Method used

A testing fixture was designed, comprising a fixedly connected base, upright plate, negative pressure mechanism, lifting component, and scanning panel, which achieves automated testing through negative pressure fixing, limiting, and scanning mechanisms.

Benefits of technology

It enables efficient and accurate detection of the cross-sectional opening dimensions of automotive door sill beams, reducing reliance on manual operation and improving detection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile detection, in particular to a section opening size detection tool for an automobile doorsill beam, which comprises a base and a vertical plate which are fixedly connected, and a negative pressure mechanism and a jacking assembly are respectively arranged at two ends of the base. Adjusting inserting plates are embedded into the top ends of the vertical plates, upper limiting frames are fixedly connected to the inner ends of the adjusting inserting plates, a top plate is fixedly connected to the top ends of the upper limiting frames, first telescopic rods are embedded into the top ends of the upper limiting frames, and limiting layers are fixedly connected to the bottom ends of the first telescopic rods. The effect of driving an upper limiting frame to transversely move and adjust at the top end of the base is achieved through an adjusting insertion plate arranged in a sliding mode, the effect of pressing and limiting the top of the automobile doorsill beam from the upper position is achieved through cooperation of the upper limiting frame and a limiting layer, and the effect of controlling lifting adjustment of the limiting layer is achieved through a first telescopic rod; and the effect of adsorbing and fixing the surface of the external doorsill beam is achieved through the adsorption panel and the sealing cover.
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Description

Technical Field

[0001] This utility model relates to the technical field of automobile inspection, specifically to a tooling for inspecting the cross-sectional opening size of an automobile door sill beam. Background Technology

[0002] In traditional automobile manufacturing, the door sill is generally designed as a U-shaped structure. This structure is difficult to control during the stamping process. In the early stages of automobile prototyping, the springback of the parts has a significant impact on the prototyping accuracy, affecting the matching of various parts and thus affecting the assembly of various automotive trim pieces.

[0003] Currently, the cross-sectional opening size of car door sill beams is mostly measured manually by staff using tools such as calipers / vernier calipers and micrometers. This manual measurement can achieve an accuracy of 0.02mm, but it is inefficient, depends on the operator's experience, and is time-consuming and labor-intensive, resulting in low inspection efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tooling for detecting the cross-sectional opening dimensions of automotive door sill beams, which can solve the following problems:

[0005] Currently, the cross-sectional opening size of automotive door sill beams is mostly measured manually by staff using tools. This method is inefficient, relies heavily on the operator's experience, and is time-consuming and labor-intensive, resulting in low inspection efficiency.

[0006] To solve the above-mentioned technical problems, the present invention proposes the following technical solution:

[0007] A fixture for detecting the cross-sectional opening size of an automobile door sill beam includes a fixedly connected base and a vertical plate. A negative pressure mechanism and a lifting assembly are respectively provided at both ends of the base. An adjusting plate is embedded in the top of the vertical plate. An upper limit frame is fixedly connected to the inner end of the adjusting plate. A top plate is fixedly connected to the top of the upper limit frame. A first telescopic rod is embedded in the top of the upper limit frame. A limiting layer is fixedly connected to the bottom end of the first telescopic rod. An adsorption panel and a sealing cover are fixedly connected to the inner and outer surfaces of the vertical plate, respectively. The adsorption panel and the negative pressure mechanism are matched. An outer light shield and a scanning panel are fixedly connected to the outer side of the vertical plate. A scanning mechanism is embedded in the scanning panel. A cavity is formed on the surface of the base. The lifting assembly is located inside the cavity. The lifting assembly includes a support seat located in the cavity and guide rods on both sides of its bottom end. A connecting frame is fixedly connected to the bottom end of the guide rods. A second telescopic rod is fixedly connected to the bottom end of the connecting frame. A limiting frame is fixedly connected inside the cavity and is sleeved with the bottom of the support seat.

[0008] Furthermore, the upright plate is vertically connected to the center of the top of the base, the adjusting plate is horizontally positioned and moves through the upright plate, the upper limit frame is horizontally positioned in an "M" shape, and the first telescopic rod vertically passes through the center of the upper limit frame and connects with the limiting layer.

[0009] Furthermore, the adjustment plate and the upright plate are slidably connected via a horizontal track, and the limiting layer is set as a rectangular rubber layer.

[0010] Furthermore, the surface of the adsorption panel has a circular adsorption port, and the adsorption port is surrounded by a raised soft rubber gasket. The adsorption panel and the negative pressure mechanism are connected by a connecting pipe, and the sealing cover is a trapezoidal cover that is sealed to the outside of the upright plate.

[0011] Furthermore, the scanning panel is arranged in a rectangular vertical shape, and the outer light shield is arranged in an "L" shape, which is horizontally connected to one side of the scanning panel. At the same time, the outer light shield is located on the front and side of the overall device.

[0012] Furthermore, the support base is arranged in a rectangular inverted shape with vertical protrusions at both ends of the bottom. The limiting frame and the bottom ends of the support base are movably fitted together. The guide rod is vertically arranged. The connecting frame is a rectangular frame that is movably embedded in the bottom cavity. The second telescopic rod is a hydraulic telescopic rod.

[0013] As can be seen from the above technical solution, the beneficial effects of this utility model are:

[0014] 1. This utility model achieves the effect of lateral movement and adjustment of the upper limit frame at the top of the base by sliding adjustment plate, and achieves the effect of pressing down and limiting the top of the car door sill beam from above by upper limit frame and limiting by limit layer, and achieves the effect of controlling the lifting and lowering adjustment of limit layer by first telescopic rod.

[0015] 2. This utility model achieves the effect of adsorbing and fixing the surface of the external door sill beam through an adsorption panel and a sealing cover.

[0016] 3. This utility model achieves the effect of scanning and shading the opening size of the external car door sill beam cross section by using a scanning panel in conjunction with an external light shield.

[0017] 4. This utility model achieves the effect of controlling the overall lifting and adjustment of the support seat through the second telescopic rod, and achieves the effect of ensuring the stability of the overall lifting and adjustment of the support seat through the limit frame and guide rod, and achieves the effect of supporting and limiting the external car door sill beam from the bottom position through the support seat. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure connection in this utility model;

[0021] Figure 3 This is a front view of the overall structure connection in this utility model;

[0022] Figure 4 In this utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0023] Figure label:

[0024] 1. Base; 2. Vertical plate; 3. Negative pressure mechanism; 4. Adjustment plate; 5. Upper limit frame; 6. Top plate; 7. First telescopic rod; 8. Limiting layer; 9. Lifting assembly; 10. Sealing cover; 11. Adsorption panel; 12. Outer light shield; 13. Scanning panel; 14. Scanning mechanism; 15. Bottom cavity; 16. Second telescopic rod; 17. Connecting frame; 18. Guide rod; 19. Support base; 20. Limiting frame. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] See Figure 1-4As shown, a tooling for detecting the cross-sectional opening size of an automobile door sill beam includes a base 1 and a vertical plate 2 fixedly connected. A negative pressure mechanism 3 and a lifting assembly 9 are respectively provided at both ends of the base 1. An adjusting plate 4 is embedded in the top of the vertical plate 2. An upper limit frame 5 is fixedly connected to the inner end of the adjusting plate 4. A top plate 6 is fixedly connected to the top of the upper limit frame 5. A first telescopic rod 7 is embedded in the top of the upper limit frame 5. A limiting layer 8 is fixedly connected to the bottom end of the first telescopic rod 7. An adsorption panel 11 and a sealing cover 10 are respectively fixedly connected to the inner and outer surfaces of the vertical plate 2. The adsorption panel 11 and the negative pressure mechanism 3... The supporting structure includes an outer light shield 12 and a scanning panel 13 fixedly connected to the outer side of the upright plate 2. A scanning mechanism 14 is embedded in the scanning panel 13. A bottom cavity 15 is formed on the surface of the base 1. A lifting component 9 is located inside the bottom cavity 15. The lifting component 9 includes a support base 19 located in the bottom cavity 15 and guide rods 18 on both sides of its bottom end. A connecting frame 17 is fixedly connected to the bottom end of the guide rod 18. A second telescopic rod 16 is fixedly connected to the bottom end of the connecting frame 17. A limiting frame 20 is fixedly connected inside the bottom cavity 15. The limiting frame 20 is also sleeved on the bottom of the support base 19.

[0027] In this embodiment of the utility model, the upright plate 2 is vertically connected to the center of the top of the base 1. The adjusting insert plate 4 is horizontally arranged and moves through the upright plate 2. The upper limit frame 5 is horizontally arranged in an "M" shape. The first telescopic rod 7 vertically passes through the center of the upper limit frame 5 and connects with the limiting layer 8. The adjusting insert plate 4 and the upright plate 2 are slidably connected by a horizontal track. The limiting layer 8 is set as a rectangular rubber layer. The sliding adjusting insert plate 4 achieves the effect of driving the upper limit frame 5 to move horizontally at the top of the base 1 for adjustment. The upper limit frame 5, in conjunction with the limiting layer 8, achieves the effect of pressing down and limiting the top of the car door sill beam from above. The first telescopic rod 7 achieves the effect of controlling the lifting and lowering adjustment of the limiting layer 8.

[0028] When fixing the car door sill beam, place it vertically on the base 1, slide the length of the adjusting plate 4 to make the top of the door sill beam below the upper limit frame 5, then activate the first telescopic rod 7 to drive the limiting layer 8 down, and press down on the top of the door sill beam from above to limit it.

[0029] The surface of the adsorption panel 11 is provided with a circular adsorption port, and a raised soft rubber gasket is provided around the adsorption port. The adsorption panel 11 and the negative pressure mechanism 3 are connected by a connecting pipe. The sealing cover 10 is a trapezoidal cover and is sealed to the outside of the upright plate 2. The adsorption panel 11 and the sealing cover 10 achieve the effect of adsorbing and fixing the surface of the external threshold beam.

[0030] After placing the car door sill beam vertically onto the base 1, its outer surface is made to adhere to the inner surface of the upright plate 2. Then, the negative pressure mechanism 3 is activated, causing the adsorption panel 11 to generate negative pressure, adsorbing and fixing the vertical car door sill beam to the inner side of the upright plate 2, thus achieving an auxiliary limiting and fixing effect.

[0031] The scanning panel 13 is rectangular and vertically arranged, while the outer light shield 12 is L-shaped and horizontally connected to one side of the scanning panel 13. The outer light shield 12 is located on the front and side of the overall device. The scanning panel 13 and the outer light shield 12 work together to achieve the effect of scanning and light shielding the opening size of the external car door sill beam.

[0032] After the external car door sill beam is fixed in place, the scanning mechanism 14 is activated to perform laser scanning on its cross-sectional opening size. During the scanning process, the outer light shield 12 can effectively prevent strong external light from affecting the scanning and ensure scanning accuracy.

[0033] The support base 19 is rectangular and inverted, with vertical protrusions at both ends of the bottom. The limiting frame 20 and the bottom ends of the support base 19 are movably fitted together. The guide rod 18 is vertically set. The connecting frame 17 is a rectangular frame that is movably embedded in the bottom cavity 15. The second telescopic rod 16 is a hydraulic telescopic rod. The second telescopic rod 16 controls the overall lifting and adjustment of the support base 19. The limiting frame 20 and the guide rod 18 ensure the stability of the overall lifting and adjustment of the support base 19. The support base 19 provides support and limits the external car door sill beam from the bottom position.

[0034] When fixing the car door sill beam, it is placed vertically on the base 1, with its bottom supported on the support seat 19. The support seat 19 is raised under the control of the second telescopic rod 16, and together with the upper limit frame 5, it completes the upper and lower clamping and positioning of the external car door sill beam.

[0035] In this device, the scanning mechanism 14 is set as a laser scanning or optical measurement mechanism. Before the detection, the external threshold beam is fixed on the base 1 to ensure that it is aligned with the CAD coordinate system before subsequent detection. The specific structure, scanning working principle and measurement method are all existing public technologies and will not be described in detail here.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A tooling for detecting the cross-sectional opening dimensions of an automobile door sill beam, characterized in that: The invention includes a tooling for detecting the cross-sectional opening size of a car door sill beam, comprising a fixedly connected base (1) and a vertical plate (2). The base (1) is provided with a negative pressure mechanism (3) and a lifting assembly (9) at both ends. An adjusting plate (4) is embedded in the top of the vertical plate (2). An upper limit frame (5) is fixedly connected to the inner end of the adjusting plate (4). A top plate (6) is fixedly connected to the top of the upper limit frame (5). A first telescopic rod (7) is embedded in the top of the upper limit frame (5). A limiting layer (8) is fixedly connected to the bottom end of the first telescopic rod (7). An adsorption panel (11) and a sealing cover (10) are fixedly connected to the inner and outer surfaces of the vertical plate (2). The adsorption panel (11) and the negative pressure mechanism (3) are provided in a matching manner. The outer side of the upright plate (2) is fixedly connected to a matching outer light shield (12) and a scanning panel (13). A scanning mechanism (14) is embedded in the scanning panel (13). A bottom cavity (15) is opened on the surface of the base (1). The lifting component (9) is located inside the bottom cavity (15). The lifting component (9) includes a support seat (19) located in the bottom cavity (15) and guide rods (18) on both sides of its bottom end. A connecting frame (17) is fixedly connected to the bottom end of the guide rod (18). A second telescopic rod (16) is fixedly connected to the bottom end of the connecting frame (17). A limiting frame (20) is fixedly connected inside the bottom cavity (15). The limiting frame (20) is sleeved on the bottom of the support seat (19).

2. The tooling for detecting the cross-sectional opening size of an automobile door sill beam according to claim 1, characterized in that: The upright plate (2) is vertically connected to the center of the top of the base (1). The adjusting plate (4) is horizontally positioned and moves through the upright plate (2). The upper limit frame (5) is horizontally positioned in an "M" shape. The first telescopic rod (7) vertically passes through the center of the upper limit frame (5) and connects with the limiting layer (8).

3. The fixture for detecting the cross-sectional opening size of an automobile door sill beam according to claim 2, characterized in that: The adjusting insert (4) and the upright plate (2) are slidably connected by a transverse track, and the limiting layer (8) is set as a rectangular rubber layer.

4. The fixture for detecting the cross-sectional opening size of an automobile door sill beam according to claim 1, characterized in that: The surface of the adsorption panel (11) is provided with a circular adsorption port, and a raised soft rubber gasket is provided around the adsorption port. The adsorption panel (11) and the negative pressure mechanism (3) are connected by a connecting pipe. The sealing cover (10) is a trapezoidal cover and is sealed to the outside of the upright plate (2).

5. The fixture for detecting the cross-sectional opening size of an automobile door sill beam according to claim 1, characterized in that: The scanning panel (13) is rectangular and vertically arranged, and the outer light shield (12) is L-shaped and horizontally connected to one side of the scanning panel (13). At the same time, the outer light shield (12) is located on the front and side of the whole device.

6. The tooling for detecting the cross-sectional opening size of an automobile door sill beam according to claim 1, characterized in that: The support base (19) is generally rectangular and inverted, with vertical protrusions at both ends of the bottom. The limit frame (20) and the support base (19) are movably sleeved at both ends of the bottom. The guide rod (18) is vertically set. The connecting frame (17) is a rectangular frame that is movably embedded in the bottom cavity (15). The second telescopic rod (16) is a hydraulic telescopic rod.