Device for detecting the dimensions of the interface of a car weather strip

Abstract

The utility model relates to the technical field of automobile sealing strip, disclose a kind of detection device for the interface size of automobile sealing strip. The detection device of the utility model, comprising: substrate, support fixture, limit block and detection fixture, support fixture, limit block and detection fixture are set on substrate, limit block forms limit slot on substrate, detection fixture is set at limit slot, and support fixture and detection fixture are all equipped with reference line, detection midline and upper and lower tolerance line. The detection device of the utility model, sealing rubber strip product is placed to support fixture, so that the switching interface angle is located at the both sides of support fixture. The reference point of switching interface angle is aligned with the reference line of support fixture, whether the reference point of the switching interface angle of another side is observed within tolerance line;Again, the reference hard point of switching interface angle is aligned with the reference line of detection fixture, whether the plastic buckle is observed within tolerance line;If both are within tolerance line, then product is qualified, otherwise product is unqualified, realize the rapid detection of product interface size.

Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip technology, specifically to a device for detecting the interface size of automotive sealing strips. Background Technology

[0002] Cars are a common means of transportation and have entered ordinary people's households.

[0003] Car doors are equipped with sealing strips, which have at least two transition joints. During the molding process, the two interfaces on both sides of the transition joints are connected by two sealing strips, forming a closed loop sealing strip product with the two transition joints and the sealing strips.

[0004] During installation, the transition joint of the sealing strip is fixed to the door mounting position via a connector. The plastic clips on the sealing strip engage with the grooves in the door sheet metal, completing the installation and fixing of the sealing strip. When the door is closed, the sealing strip on the door contacts and abuts against the vehicle body, ensuring a tight seal.

[0005] One side of the adapter joint has a product baseline. After the sealing strip is formed, the distance between the two adapter joint baselines must be within the specified range to fix the adapter joint in the door installation position. The other side of the adapter joint has a reference hard point. After the sealing strip is formed, the distance between the reference hard point of the adapter joint and the adjacent plastic clip on the sealing strip must also be within the specified range to ensure that the plastic clip can be smoothly fastened into the door sheet metal clip groove after the adapter joint is fixed.

[0006] When connecting the sealing strip to the transition joint, if the sealing strip is inserted too tightly or too loosely into the transition joint interface, it will cause dimensional defects in the molded sealing strip product, preventing successful installation. Therefore, after the sealing strip product is molded, the distance between the two transition joint reference lines and the distance between the reference hard point of the transition joint and the adjacent plastic clip must be checked to ensure that the distance between the reference lines and the distance between the reference hard point and the plastic clip are within the specified tolerance range, thus ensuring smooth installation of the sealing strip product on the vehicle door.

[0007] The inventors of this application have discovered that, currently, when inspecting the interface dimensions of sealing strip products, it is inconvenient to fix the product, the inspection speed is slow and the efficiency is low; and due to the different ways different operators hold the product, the inspection results will be different, which can easily lead to inspection errors and cause defective products to be released. Utility Model Content

[0008] The purpose of this invention is to provide a device for detecting the size of automotive sealing strip interfaces, in order to solve the problems mentioned in the background art.

[0009] This utility model provides a device for detecting the interface size of automotive sealing strips, comprising: a base plate, a support fixture, a limiting block, and a detection fixture;

[0010] The support fixture is disposed on the base plate;

[0011] Multiple limiting blocks are provided and disposed on the base plate, located on both sides of the support fixture, and the limiting blocks form limiting grooves on the base plate;

[0012] The detection fixture is disposed on the substrate and located at the limiting groove;

[0013] The support fixture and the limiting block form the mounting position of the sealing strip on the substrate. The support fixture is used to support the sealing strip, and the limiting groove is used for the sealing strip to be embedded.

[0014] The support fixture is provided with a first reference line, a first detection midline, and a first upper and lower tolerance line. The distance from the first reference line to the first detection midline corresponds to the distance between the two transition angle reference lines. The first upper and lower tolerance lines are set on both sides of the first detection midline.

[0015] The testing fixture is provided with a second reference line, a second testing center line, and a second upper and lower tolerance line. The distance from the second reference line to the second testing center line corresponds to the distance from the reference hard point of the transition angle to the adjacent plastic buckle. The second upper and lower tolerance lines are set on both sides of the second testing center line.

[0016] Based on the above scheme, the detection device for automotive sealing strip interface dimensions of this utility model comprises a base plate, a support fixture, a limiting block, and a detection fixture. The support fixture and the limiting block are disposed on the base plate, with the limiting block forming a limiting groove on the base plate. The detection fixture is disposed on the base plate. The support fixture has a first reference line, a first detection midline, and a first upper and lower tolerance line. The detection fixture also has a second reference line, a second detection midline, and a second upper and lower tolerance line. During detection, the operator places the sealing strip product onto the support fixture, positioning the two transition corners on both sides of the support fixture, and embedding the sealing strip into the limiting grooves on both sides. Then, the operator aligns the product reference point of one transition corner with the first reference line of the support fixture, and observes whether the product reference point of the other transition corner is within the first upper and lower tolerance lines while keeping the sealing strip straight and unstretched. Next, the operator aligns the reference hard points of both transition corners with the second reference line of the testing fixture, and observes whether the plastic buckle is within the second upper and lower tolerance lines while the sealing strip is naturally unstretched. If both are within the tolerance lines, the product is qualified; otherwise, the product is unqualified. By using the reference lines and upper and lower tolerance lines, rapid inspection of product interface dimensions can be achieved, preventing defective products from leaving the product and controlling the quality of outgoing products.

[0017] In one feasible solution, the testing fixture includes: a base plate, side plates, and a square tube section;

[0018] The bottom plate and the side plate are disposed on one side of the square tube section, and the bottom plate and the side plate are disposed perpendicular to each other;

[0019] The second baseline is set on the top surface of the square tube section, and the second detection midline and the second upper and lower tolerance lines are set on the base plate;

[0020] The side plate is provided with a U-shaped groove, the width of which is greater than the distance between the second upper and lower tolerance lines, for inserting plastic buckles.

[0021] In one feasible solution, the base plate is provided with mounting through holes, so that the base plate is fixed to the substrate by fixing screws.

[0022] In one feasible solution, the mounting through hole is elongated, allowing the base plate to be positioned adjustablely on the substrate.

[0023] In one feasible solution, the limiting block is made of rigid plastic and is fixed to the substrate by fixing screws.

[0024] In one feasible solution, the first upper and lower tolerance lines are provided on both sides of the first baseline.

[0025] In one feasible solution, the support fixture includes: a first square tube and a second square tube;

[0026] The first square tube is disposed on the substrate, and the first reference line, the first detection midline and the first upper and lower tolerance lines are disposed on the first square tube;

[0027] The second square tube is disposed on the first square tube and is suspended in the air for the guide groove of the sealing strip to be inserted.

[0028] In one feasible solution, the first baseline, the first detection midline, and the first upper and lower tolerance lines are pasted onto the support fixture using printed paper;

[0029] The second baseline, the second detection midline, and the second upper and lower tolerance lines are pasted onto the detection fixture using printed paper.

[0030] In one feasible approach, the substrate is a wood-based board.

[0031] In one feasible embodiment, the substrate is provided with a handle groove. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a front view schematic diagram of the detection device for the interface size of automotive sealing strips in an embodiment of this utility model;

[0034] Figure 2 As described in the embodiments of this utility model Figure 1 Enlarged view of point A in the image;

[0035] Figure 3 This is a side view of the detection device in an embodiment of the present utility model;

[0036] Figure 4 This is a three-dimensional schematic diagram of the detection device in the embodiment of this utility model;

[0037] Figure 5 As described in the embodiments of this utility model Figure 4 Enlarged view of point B in the image;

[0038] Figure 6 As described in the embodiments of this utility model Figure 4 Enlarged view of point C in the image.

[0039] Numbering on the map:

[0040] 1. Base plate; 11. Handle groove; 2. Support fixture; 201. First square tube; 202. Second square tube; 21. First baseline; 22. First detection center line; 23. First upper and lower tolerance lines; 3. Limiting block; 4. Detection fixture; 401. Base plate; 402. Side plate; 403. Square tube section; 41. Second baseline; 42. Second detection center line; 43. Second upper and lower tolerance lines; 44. Mounting through hole; 5. Fixing screw; 610. Sealing strip; 620. Adapter joint; 630. Product baseline; 640. Reference hard point; 650. Plastic buckle. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0045] As described in the background section of this application, a product reference line 630 is provided at one side interface of the transition angle 620 of the sealing strip product. After the sealing strip product is formed, the distance between the two transition angle reference lines must be within a specified range, so that the transition angle 620 is fixed in the door installation position. A reference hard point 640 is provided at the other side interface of the transition angle 620. After the sealing strip product is formed, the distance between the reference hard point 640 of the transition angle and the adjacent plastic buckle 650 on the sealing strip 610 must also be within a specified range. After the transition angle 620 is fixed, it is ensured that the plastic buckle 650 can be smoothly fastened in the door sheet metal buckle groove.

[0046] After the sealing strip is formed, the distance between the product baselines 630 of the two transition corners 620 and the distance between the reference hard point 640 of the transition corner and the adjacent plastic clip 650 need to be tested to ensure that the distance between the product baselines and the distance between the reference hard point and the plastic clip are within the specified tolerance range, so as to ensure the smooth installation of the sealing strip on the car door.

[0047] The inventors of this application have discovered that, currently, when inspecting the interface dimensions of sealing strip products, it is inconvenient to fix the product, the inspection speed is slow and the efficiency is low; and due to the different ways the operator holds the product, the inspection results will be different, which can easily lead to inspection errors and cause defective products to be released.

[0048] To address the aforementioned problems, the inventors of this application have proposed a technical solution, the specific embodiments of which are as follows:

[0049] Figure 1 This is a front view schematic diagram of the detection device for the interface size of automotive sealing strips in an embodiment of this utility model. Figure 2 As described in the embodiments of this utility model Figure 1 Enlarged view of point A in the image. Figure 3 This is a side view schematic diagram of the detection device in an embodiment of the present utility model. Figure 4 This is a three-dimensional schematic diagram of the detection device in an embodiment of the present utility model. Figure 5 As described in the embodiments of this utility model Figure 4 Enlarged view of point B in the image. Figure 6 As described in the embodiments of this utility model Figure 4 Enlarged view of point C in the image.

[0050] like Figures 1 to 6 As shown, the detection device for the interface size of automotive sealing strips in this embodiment includes: a base plate 1, a support fixture 2, a limiting block 3, and a detection fixture 4.

[0051] The substrate 1 is a square thin plate, which is fixed at an angle. For example, the substrate 1 can be set on a bracket (not shown in the figure).

[0052] The support fixture 2 is long and horizontally positioned on top of the substrate 1.

[0053] Multiple limiting blocks 3 are provided, and multiple limiting blocks 3 are disposed on the base plate 1, located on the left and right sides of the support fixture 2. The limiting blocks 3 form limiting grooves on the base plate 1.

[0054] The support fixture 2 and the limiting block 3 form the mounting position of the sealing strip product on the car door on the substrate 1. The support fixture 2 is used to support one sealing strip 610 of the product, and the limiting groove formed by the limiting block 3 is used for the other sealing strip 610 to be inserted.

[0055] The testing fixture 4 is mounted on the base plate 1 and is located at the limiting groove formed by the limiting block 3.

[0056] One end of the support fixture 2 is provided with a first reference line 21, and the other end is provided with a first detection center line 22 and a first upper and lower tolerance line 23. The distance between the first reference line 21 and the first detection center line 22 corresponds to the distance between the product reference lines 630 of the two transition corners 620 on the sealing strip product. The first upper and lower tolerance lines 23 are located on the left and right sides of the first detection center line 22. The distance between the first upper and lower tolerance lines 23 and the first detection center line 22 corresponds to the allowable upper and lower tolerance values ​​of the distance between the product reference lines 630 of the two transition corners.

[0057] One end of the testing fixture 4 is provided with a second reference line 41, and the other end is provided with a second testing center line 42 and a second upper and lower tolerance line 43. The distance between the second reference line 41 and the second testing center line 42 corresponds to the distance between the reference hard point 640 of the transition corner and the adjacent plastic buckle 650. The second upper and lower tolerance lines 43 are located on the left and right sides of the second testing center line 42. The distance between the second upper and lower tolerance lines 43 and the second testing center line 42 corresponds to the allowable upper and lower tolerance values ​​of the distance between the reference hard point 640 and the plastic buckle 650.

[0058] It should be noted that if the sealing strip product has more than two transition joints, then limit blocks and testing fixtures are set at the corresponding positions on both sides of each transition joint.

[0059] In this embodiment, when the test begins, the operator picks up the sealing strip product from the shelf, holds the two transition corners with both hands, places the sealing strip on the support fixture to prevent the product from falling, and embeds the other sealing strip into the limiting grooves on both sides.

[0060] After the product is placed, the two transition corners 620 are located on the left and right sides of the support fixture 2. The product baselines 630 of the two transition corners 620 are basically located at the first baseline 21 and the first detection midline 22 of the support fixture. The reference hard point 640 of the transition corner is basically located at the second baseline 41 of the detection fixture 4.

[0061] Then, the operator aligns the product reference point 630 of one transition corner with the first reference line 21 of the support fixture, and observes whether the product reference point 630 of the other transition corner is within the area of ​​the first upper and lower tolerance lines 23 while keeping the sealing strip 610 straight and without tension; then, the operator aligns the reference hard points 640 of both transition corners with the second reference line 41 of the testing fixture, and observes whether the center line of the adjacent plastic buckle 650 is within the area of ​​the second upper and lower tolerance lines 43 while the sealing strip 610 is in a natural, untensioned state; if both are within the tolerance lines, the product is qualified, otherwise the product is unqualified.

[0062] If the sealing strip product has more than two transition joints, the dimensions on both sides of the remaining transition joints must be checked accordingly. Observe whether the distance between the reference hard point on both sides of the transition joint and the adjacent plastic buckle is within the specified tolerance range, until all the dimensions on both sides of all transition joints on the entire product have been checked and confirmed.

[0063] As can be seen from the above, the detection device for automotive sealing strip interface dimensions in this embodiment comprises a base plate, a support fixture, a limiting block, and a detection fixture. The support fixture and the limiting block are mounted on the base plate, with the limiting block forming a limiting groove on the base plate. The detection fixture is mounted on the base plate, and the support fixture has a first reference line, a first detection midline, and a first upper and lower tolerance line. The detection fixture also has a second reference line, a second detection midline, and a second upper and lower tolerance line. During detection, the operator places the sealing strip product onto the support fixture, positioning the two transition corners on either side of the support fixture, and embedding the sealing strip into the limiting grooves on both sides. Then, the operator aligns the product reference point of one transition corner with the first reference line of the support fixture, keeping the sealing strip straight and without tension, and observes whether the product reference point of the other transition corner is within the first upper and lower tolerance lines. Next, the operator aligns the reference hard points of both transition corners with the second reference line of the testing fixture, and observes whether the plastic buckle is within the second upper and lower tolerance lines while the sealing strip is in a natural, untensioned state. If both are within the tolerance lines, the product is qualified; otherwise, the product is unqualified. By using the reference lines and upper and lower tolerance lines, rapid detection of whether the interface dimensions of the sealing strip are within the specified tolerance range can be achieved, improving testing efficiency, preventing defective products from leaving the product, and controlling the quality of outgoing products.

[0064] Optional, such as Figure 5 and Figure 6 As shown, the detection device for the interface size of automotive sealing strips in this embodiment has a detection fixture 4 formed by cutting a square tube. The detection fixture 4 includes a base plate 401, a side plate 402, and a square tube section 403.

[0065] The base plate 401 and the side plate 402 are located on one side of the square tube section 403, and the base plate 401 and the side plate 402 are arranged perpendicular to each other.

[0066] The second baseline 41 of the inspection fixture 4 is set on the top surface of the square tube section 403, and the second inspection midline 42 and the second upper and lower tolerance lines 43 are set on the base plate 401.

[0067] The side plate 402 is provided with a U-shaped groove. The position of the U-shaped groove of the side plate 402 corresponds to the position of the second upper and lower tolerance lines 43, and the width of the U-shaped groove of the side plate 402 is greater than the distance between the second upper and lower tolerance lines 43.

[0068] During testing, after the product sealing strip 610 is placed into the limiting groove formed by the limiting block 3, the plastic buckle 650 on the sealing strip is inserted into the U-shaped groove of the side plate 402. The center line of the plastic buckle 650 is observed to be within the area of ​​the second upper and lower tolerance lines 43, which makes it easier to quickly confirm the position and size of the plastic buckle.

[0069] Furthermore, in this embodiment, the detection device for detecting the interface size of automotive sealing strips has a detection fixture 4 with a mounting through hole 44 on the base plate 401, so that the base plate 401 is fixed to the base plate 1 by fixing screws 5.

[0070] Furthermore, in this embodiment, the mounting through hole 44 on the base plate 401 of the detection device for the interface size of automotive sealing strips is elongated, so that the base plate 401 can be fixed on the substrate 1 in an adjustable position, which facilitates the adjustment of the position of the detection fixture 4 on the substrate 1.

[0071] Optionally, in this embodiment, the limiting block 3 of the detection device for the interface size of the automotive sealing strip is a square block made of hard plastic. The limiting block 3 is fixed to the base plate 1 by fixing screws 5. The use of hard plastic material for the limiting block 3 can prevent the limiting block from causing bumps or scratches to the sealing strip.

[0072] Optionally, in this embodiment, the support fixture 2 for detecting the interface size of automotive sealing strips is also provided with first upper and lower tolerance lines 23 on the left and right sides of the first reference line 21.

[0073] During testing, align the product baseline of one transition corner with the first test center line of the support fixture, and observe whether the product baseline of the other transition corner is within the area of ​​the first upper and lower tolerance lines on both sides of the first baseline. This method can also be used to test the product, making it more convenient to use.

[0074] Optional, such as Figure 2 and Figure 6 As shown, the support fixture 2 of the detection device for the interface size of automotive sealing strips in this embodiment includes: a first square tube 201 and a second square tube 202.

[0075] The first square tube 201 is disposed on the substrate 1, and the first reference line 21, the first detection midline 22 and the first upper and lower tolerance lines 23 are disposed on the first square tube 201.

[0076] The bottom of the second square tube 202 is located on the top surface of the first square tube 201, and the second square tube 202 is suspended outside the first square tube 201. When the sealing strip is placed, the guide groove of the sealing strip 610 is inserted into the second square tube 202, so that the sealing strip is quickly suspended on the second square tube 202 of the support fixture 2.

[0077] Optionally, in this embodiment, the detection device for the interface size of automotive sealing strips uses a first reference line 21, a first detection midline 22, and a first upper and lower tolerance line 23, which are respectively printed on printing paper. The printing paper is then pasted onto the support fixture 2 to complete the setting of the marking lines on the support fixture 2.

[0078] Similarly, the second baseline 41, the second detection midline 42, and the second upper and lower tolerance lines 43 are set on the printing paper by printing, and then the printing paper is pasted on the detection fixture 4 to complete the setting of the marking lines on the detection fixture 4.

[0079] Baseline, median, and tolerance lines are printed on the printing paper, making it easy to replace the marking lines to adapt to the testing of different products.

[0080] Furthermore, in this embodiment, the base plate 1 of the detection device for the interface size of automotive sealing strips is made of wood, which makes it convenient for the operator to pick up and replace.

[0081] Furthermore, in this embodiment, the detection device for the interface size of automotive sealing strips has a handle groove 11 on one side of the substrate 1 to facilitate gripping the substrate 1.

[0082] In this utility model, unless otherwise explicitly specified and limited, the first feature being "on" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium.

[0083] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "under," and "beneath" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0084] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 therein. 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.

Claims

1. A device for detecting the dimensions of automotive sealing strip interfaces, characterized in that, include: Substrate, support fixture, limiting block, and testing fixture; The support fixture is disposed on the base plate; Multiple limiting blocks are provided and disposed on the base plate, located on both sides of the support fixture, and the limiting blocks form limiting grooves on the base plate; The detection fixture is disposed on the substrate and located at the limiting groove; The support fixture and the limiting block form the mounting position of the sealing strip on the substrate. The support fixture is used to support the sealing strip, and the limiting groove is used for the sealing strip to be embedded. The support fixture is provided with a first reference line, a first detection midline, and a first upper and lower tolerance line. The distance from the first reference line to the first detection midline corresponds to the distance between the two transition angle reference lines. The first upper and lower tolerance lines are set on both sides of the first detection midline. The testing fixture is provided with a second reference line, a second testing center line, and a second upper and lower tolerance line. The distance from the second reference line to the second testing center line corresponds to the distance from the reference hard point of the transition angle to the adjacent plastic buckle. The second upper and lower tolerance lines are set on both sides of the second testing center line.

2. The detection device for the interface size of automotive sealing strips according to claim 1, characterized in that, The testing fixture includes: a base plate, side plates, and a square tube section; The bottom plate and the side plate are disposed on one side of the square tube section, and the bottom plate and the side plate are disposed perpendicular to each other; The second baseline is set on the top surface of the square tube section, and the second detection midline and the second upper and lower tolerance lines are set on the base plate; The side plate is provided with a U-shaped groove, the width of which is greater than the distance between the second upper and lower tolerance lines, for inserting plastic buckles.

3. The detection device for the interface size of automotive sealing strips according to claim 2, characterized in that, The base plate is provided with mounting through holes, so that the base plate can be fixed to the base plate by fixing screws.

4. The detection device for the interface size of automotive sealing strips according to claim 3, characterized in that, The mounting through hole is elongated, allowing the base plate to be positioned adjustablely on the substrate.

5. The detection device for the interface size of automotive sealing strips according to claim 1, characterized in that, The limiting block is made of hard plastic and is fixed to the base plate by fixing screws.

6. The detection device for the interface size of automotive sealing strips according to claim 1, characterized in that, The first upper and lower tolerance lines are provided on both sides of the first baseline.

7. The device for detecting the interface size of automotive sealing strips according to claim 1, characterized in that, The support fixture includes: a first square tube and a second square tube; The first square tube is disposed on the substrate, and the first reference line, the first detection midline and the first upper and lower tolerance lines are disposed on the first square tube; The second square tube is disposed on the first square tube and is suspended in the air for the guide groove of the sealing strip to be inserted.

8. The device for detecting the interface size of automotive sealing strips according to claim 1, characterized in that, The first baseline, the first detection midline, and the first upper and lower tolerance lines are pasted onto the support fixture using printed paper. The second baseline, the second detection midline, and the second upper and lower tolerance lines are pasted onto the detection fixture using printed paper.

9. The device for detecting the interface size of automotive sealing strips according to any one of claims 1 to 8, characterized in that, The substrate is a wood-based board.

10. The device for detecting the interface size of automotive sealing strips according to claim 9, characterized in that, The substrate is provided with a handle groove.

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