Sealing strip section detection device

Abstract

The utility model relates to the technical field of detection instruments, in particular to a sealing strip section detection device. Comprises: a fixing member used for installing a to-be-tested sealing strip; the bracket is arranged above the fixing piece; each laser is mounted on the bracket, an emitter of the laser is used for emitting laser to each acquisition point on the outer surface of the sealing strip to be detected, and a receiver of the laser is used for receiving a reflected signal returned by each acquisition point; and the processing equipment is connected to each laser and is used for receiving the reflected signals returned by each acquisition point and outputting a cross-section image of the sealing strip to be detected.

Description

Technical Field

[0001] The present application relates to the technical field of detection instruments, and in particular to a sealing strip section detection device. Background Art

[0002] The inspection of the sealing strip section mainly refers to the detailed inspection and measurement of the cross section (i.e. the section) of the sealing strip to ensure that its quality and size meet the predetermined standards or design requirements. This includes the inspection of shape and contour, specifically verifying whether the shape of the section is consistent with the design drawings or standards. This includes checking whether the curves, angles and contours of the section are correct, and whether there are any bumps, depressions or other deformations that should not appear.

[0003] The traditional sealing strip section detection technology includes the following steps: First, take a sample from the target sealing strip. Use a special sealing strip section cutting device and corresponding tooling to accurately cut the sampled sealing strip into slices with a thickness of 2-3mm. Then, place the cut sealing strip slices on the projector. The projector will magnify the section of the sealing strip 10 times and project it on the display area of ​​the device. On the drawing magnified 10 times by the projector, carefully compare the drawing with the magnified section projection. Through this comparison, it is possible to accurately evaluate whether the section size meets the predetermined standards or design requirements.

[0004] However, the current testing method of sealing strip cross section inspection is a destructive inspection, and the scrapping of the product after the inspection will cause losses. Summary of the invention

[0005] Based on this, it is necessary to provide a sealing strip cross-section detection device that can detect the cross-section of the sealing strip in an undamaged state in order to solve the above technical problems.

[0006] The present application provides a device for detecting a section of a sealing strip, comprising:

[0007] A fixing part, used for mounting the sealing strip to be tested;

[0008] A bracket, arranged above the fixing member;

[0009] At least one laser, each laser is mounted on the bracket, the laser transmitter is used to emit laser to each collection point on the outer surface of the sealing strip to be tested, and the laser receiver is used to receive the reflected signal returned by each collection point;

[0010] The processing device is connected to each laser and is used to receive the reflected signal returned by each collection point and output the cross-sectional image of the sealing strip to be tested.

[0011] In one embodiment, the number of the lasers is three, wherein the installation positions of two lasers on the bracket are on the same horizontal line, and the projection position of the installation position of another laser on the bracket on the horizontal line is located at the midpoint of the line between the other two lasers.

[0012] In one embodiment, the detection device further comprises:

[0013] A test platform is used to install the fixing member and the bracket; wherein the bracket and the test platform are slidably connected along a first direction, and the first direction is a direction perpendicular to the cross section of the sealing strip to be tested.

[0014] In one embodiment, the sealing strip to be tested is plug-fitted or snap-fitted with the fixing member.

[0015] In one embodiment, the length of the fixing member in the first direction is greater than the length of the sealing strip to be tested in the first direction.

[0016] In one of the embodiments, a boss is provided on the test platform, and the fixing member is plug-fitted or snap-fitted with the boss.

[0017] In one embodiment, the boss and the test platform are detachable.

[0018] In one of the embodiments, the bracket is a door-shaped, arch-shaped or U-shaped mounting frame, and each laser is mounted on the inner wall of the bracket on a side close to the fixing member.

[0019] In one of the embodiments, the laser is configured to emit a line laser.

[0020] In one of the embodiments, the processing device is specifically configured to display a highlighted line in the set area according to the standard image of the sealing strip to be tested.

[0021] In the above-mentioned sealing strip cross-section detection device, the fixing part is used to install the sealing strip to be tested, and will not cause damage to the sealing strip to be tested. During detection, the laser is used to emit laser to each collection point on the outer surface of the sealing strip to be tested, and receive the reflected signal returned by each collection point; the processing equipment only needs to measure the displacement of the reflected laser on the camera imaging area according to the reflected signal, and can infer the height and depth information of each point on the surface of the object, so as to realize accurate detection of the cross-section of the sealing strip to be tested. The above-mentioned detection device detects the cross-section of the sealing strip to be tested in a non-destructive manner, which not only avoids the damage to the sealing strip that may be caused to the traditional detection method, but also ensures the high accuracy and efficiency of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a device for detecting a section of a sealing strip in one embodiment;

[0024] Figure 2 A schematic diagram of a device for detecting a section of a sealing strip in another embodiment;

[0025] Figure 3 A schematic diagram showing a highlighted line and a cross-sectional image of a sealing strip to be tested in one embodiment;

[0026] Description of reference numerals:

[0027] 10. Fixing parts; 11. Test platform; 11-1. Boss;

[0028] 12. Bracket; 13. Laser; 2. Processing equipment;

[0029] 3. Sealing strip. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] The present application provides a device for detecting the cross section of a sealing strip, such as Figure 1 As shown, the detection device includes a fixing member 10, a bracket 12, at least one laser 13 and a processing device 2, wherein:

[0037] A fixing member 10, used for mounting the sealing strip 3 to be tested;

[0038] Optionally, the sealing strip can be fixed to the fixing member 10 using a clamp or a buckle, or a suitable adhesive can be applied to the fixing member 10 and then the sealing strip can be pasted thereon; a notch can also be designed on the fixing member 10 and the sealing strip can be embedded in the notch for fixing. The above three methods are all non-destructive installation methods for the sealing strip 3 to be tested.

[0039] A bracket 12 is disposed above the fixing member 10;

[0040] Optionally, the specific size and shape of the bracket 12 may be determined according to the overall design and use requirements of the detection device. The bracket 12 may be a simple rod-shaped structure or a frame structure with adjustable height and angle.

[0041] At least one laser 13, each laser 13 is installed on the bracket 12, the transmitter of the laser 13 is used to emit laser to each collection point on the outer surface of the sealing strip 3 to be tested, and the receiver of the laser 13 is used to receive the reflected signal returned by each collection point.

[0042] It is understandable that the emitter of the laser 13 is responsible for generating and emitting a laser beam, which is precisely directed to the outer surface of the sealing strip 3 to be tested and irradiated on each collection point; the laser emission can be continuous or pulsed, depending on the type of laser 13 and the detection requirements.

[0043] Accordingly, the outer surface of the sealing strip as the detection object is irradiated by the laser beam emitted by the emitter of the laser 13, and the laser beam is reflected on the outer surface of the sealing strip.

[0044] The receiver of the laser 13 is responsible for capturing the laser signal reflected from the outer surface of the sealing strip. The intensity and direction changes of the reflected signal provide information about the surface shape and characteristics of the sealing strip.

[0045] The receiver of the laser 13 may be a camera built into the laser 13. Specifically, the receiver of the laser 13 converts the captured reflection signals into electrical signals, which are then transmitted to the processing device 2 for analysis. By comparing the emitted and received laser signals, the shape, contour and possible defects of the outer surface of the sealing strip can be inferred.

[0046] The processing device 2 is connected to each laser 13 and is used to receive the reflected signal returned by each collection point and output the cross-sectional image of the sealing strip 3 to be tested.

[0047] The processing device 2 is first connected to the receiver of each laser 13 via a data line or wirelessly to receive the reflected signals returned from each collection point in real time. These reflected signals contain information after the laser beam interacts with the outer surface of the sealing strip, which is the basic data for generating the cross-sectional image.

[0048] It can be understood that the processing device 2 constructs the cross-sectional shape of the sealing strip 3 to be tested based on the laser triangulation reflection principle. The laser triangulation reflection principle is specifically:

[0049] The emitter of the laser 13 emits a line laser, which is irradiated onto the surface to be measured, such as a sealing strip. When the laser line touches the surface of the object, it is reflected. The angle and position of the reflection depend on the shape of the surface of the object and the angle of the laser incidence. Next to the emitter of the laser 13, there is a built-in camera that captures the reflected laser from a specific angle. This camera has an imaging area for receiving and recording the position of the reflected laser. A triangular relationship is formed between the emitter of the laser 13, the camera of the laser 13 and the object. Since the distances from different positions on the surface of the object to the emitter of the laser 13 and the camera of the laser 13 are different, the reflected laser will fall at different positions in the imaging area of ​​the camera. Using this triangular relationship and known geometric parameters, the processing device 2 can accurately calculate the contour of the surface of the object. Specifically, the processing device 2 can infer the height and depth information of each point on the surface of the object by measuring the displacement of the reflected laser on the imaging area of ​​the camera.

[0050] Furthermore, the processing device 2 displays the generated cross-sectional image through a connected display or a dedicated software interface, so that the user can visually observe the cross-sectional shape of the sealing strip, as well as possible defects or irregularities.

[0051] In the above-mentioned sealing strip cross-section detection device, the fixing part 10 is used to install the sealing strip 3 to be tested, and will not cause damage to the sealing strip 3 to be tested. During the detection, the laser 13 is used to emit laser to each collection point on the outer surface of the sealing strip 3 to be tested, and receive the reflected signal returned by each collection point; the processing equipment 2 only needs to measure the displacement of the reflected laser on the camera imaging area according to the reflected signal, and can infer the height and depth information of each point on the surface of the object, so as to realize the accurate detection of the cross-section of the sealing strip 3 to be tested. The above-mentioned detection device detects the cross-section of the sealing strip 3 to be tested in a non-destructive manner, which not only avoids the damage to the sealing strip that may be caused by the traditional detection method, but also ensures the high accuracy and efficiency of the detection.

[0052] In one embodiment, if Figure 2 As shown, the detection device further includes: a test platform 11 for installing the fixing member 10 and the bracket 12 .

[0053] The test platform 11 is used as a basic structure to install the fixture 10 and the bracket 12. The test platform 11 can be a rectangular or square platform; the size of the platform is determined according to the size of the fixture 10 and the bracket 12 and the expected detection task.

[0054] It is understandable that, since different types of sealing strip products have different sizes, shapes and characteristics, it is necessary to design a fixing part 10 that matches them. In order to facilitate the rapid and accurate positioning of the fixing part 10 (and the sealing strip 3 to be tested on the fixing part 10), a boss 11-1 is provided on the test platform 11. Furthermore, a boss 11-1 is provided on the test platform 11, and the fixing part 10 is plug-fitted or snap-fitted with the boss 11-1. The shape of the boss 11-1 is compatible with the fixing part 10, and the design of the boss 11-1 will take into account the shape and size of the fixing part 10. The fixing part 10 can be quickly and accurately installed on the test platform 11 by plug-fitting or snap-fitting with the boss 11-1 to ensure a tight fit between the two.

[0055] Furthermore, in order to facilitate replacement of the boss 11 - 1 of different shapes and sizes, the boss 11 - 1 and the test platform 11 are detachably arranged.

[0056] In one possible implementation, the boss 11-1 and the test platform 11 can be connected by threads. Matching threaded holes are respectively provided at the bottom of the boss 11-1 and on the test platform 11, and the boss 11-1 is tightly connected to the test platform 11 by rotating it. In another possible implementation, a latch-type connection can be adopted between the boss 11-1 and the test platform 11. Latch holes are provided on the boss 11-1 and the test platform 11. The position of the boss 11-1 on the test platform 11 is fixed by inserting a latch. When disassembling, the boss 11-1 and the test platform 11 can be separated by pulling out the latch.

[0057] Similarly, in order to facilitate the replacement of the sealing strip 3 to be tested with different shapes and sizes, the sealing strip 3 to be tested is plug-fitted or snap-fitted with the fixing member 10 .

[0058] During the plug-in mating, one or more slots may be designed on the fixture 10, and the size and shape of these slots shall match the cross-section of the sealing strip 3 to be tested. The depth and width of the slots shall be designed to ensure that the sealing strip can be firmly inserted therein. The end or a specific portion of the sealing strip 3 to be tested is inserted into the slot of the fixture 10. After the sealing strip is inserted into the slot, friction, tiny protrusions in the slot, or other fixing mechanisms may be used to ensure that the sealing strip does not slide or fall off during the test process.

[0059] During the snap-fitting, a snap-fit ​​structure is designed on the fixing member 10, which may be some elastic protrusions or grooves, for matching with the corresponding structure on the sealing strip 3 to be tested. The snap-fitting part of the sealing strip 3 to be tested is aligned with the snap-fit ​​structure on the fixing member 10, and the snap-fit ​​structure can ensure that the sealing strip can be firmly fixed on the fixing member 10. After the snap-fitting is completed, it can be verified that the sealing strip has been firmly fixed on the fixing member 10 and will not move or fall off during the detection process.

[0060] In one embodiment, if Figure 2 As shown, the bracket 12 is slidably connected to the test platform 11 along a first direction, which is a direction perpendicular to the cross section of the sealing strip 3 to be tested; the length of the fixing member 10 in the first direction is greater than the length of the sealing strip 3 to be tested in the first direction.

[0061] Optionally, when the bracket 12 is slidably connected to the test platform 11 along the first direction, it can be achieved by a slide rail, a guide rail or other sliding mechanisms to ensure the stability and accuracy of the bracket 12 during the sliding process.

[0062] It can be understood that, by sliding the bracket 12, it can be ensured that every part of the sealing strip can be scanned by the laser 13, thereby achieving a comprehensive inspection of the sealing strip 3 to be inspected, and avoiding missing any potential defects or problem areas. For sealing strips of different lengths and widths, the position of the sliding bracket 12 can be conveniently adjusted to adapt to the scanning range of the detection system, thereby enhancing the adaptability and versatility of the detection system.

[0063] Among them, the length of the fixing member 10 in the first direction is designed to be greater than the length of the sealing strip 3 to be tested in the same direction. The purpose is to test according to the length of the sealing strip 3 to be tested itself, without cutting the sealing strip 3 to be tested. After the test is completed, the sealing strip 3 to be tested can be used normally.

[0064] In order to accurately detect the cross section of the sealing strip 3 to be tested, it is necessary to enable the laser line to irradiate multiple collection points on the outer surface of the sealing strip 3 to be tested. Figure 2 As shown, in order to perform accurate cross-section detection on the sealing strip 3 to be tested, it is necessary to enable the laser line to irradiate multiple collection points on the outer surface of the sealing strip 3 to be tested. Therefore, in one embodiment, the bracket 12 is a door-shaped, arched or U-shaped mounting frame, and each laser 13 is installed on the inner wall of the bracket 12 close to the fixing member 10.

[0065] Correspondingly, the number of the lasers 13 is three, wherein the installation positions of two lasers 13 on the bracket 12 are on the same horizontal line, and the projection position of the installation position of another laser 13 on the bracket 12 on the horizontal line is located at the midpoint of the line connecting the other two lasers 13.

[0066] It is understandable that the door-shaped, arch-shaped or U-shaped mounting frame is selected as the bracket 12. Such a design is not only structurally stable, but also convenient for the installation and commissioning of the laser 13. The bracket 12 of this shape can ensure that the laser 13 illuminates the sealing strip 3 to be tested from multiple angles, thereby capturing its cross-sectional information more comprehensively.

[0067] It is understandable that the two lasers 13 are installed on the same horizontal line, which ensures that the sealing strip 3 to be tested is illuminated from two parallel angles at the same time. Through these two lasers 13, different information of the cross section of the sealing strip at the same height can be obtained, which is helpful for a more comprehensive analysis of the shape and characteristics of the cross section. The installation position of the third laser 13 is located on the vertical projection of the midpoint of the line connecting the two lasers 13. Such a layout allows the third laser 13 to illuminate the sealing strip from an angle different from that of the first two lasers 13, thereby providing additional cross-sectional data. These data, combined with the data obtained by the first two lasers 13, can provide a more three-dimensional and comprehensive cross-sectional image.

[0068] Furthermore, the laser 13 is configured to emit line laser.

[0069] The line laser refers to the light emitted by the laser 13 that spreads in a straight line to form a bright line. This laser line has high intensity, high linearity and good stability, and is suitable for precision measurement and contour detection. Since the line laser has the characteristics of high brightness and high linearity, it can provide accurate contour information, so that the detection device can more accurately identify small changes or defects in the sealing strip, thereby improving the accuracy and reliability of the detection.

[0070] In this embodiment, the specific shape of the bracket 12 and the layout of the laser 13 can realize accurate cross-section detection of the sealing strip 3 to be tested, which not only improves the accuracy and comprehensiveness of the detection, but also provides a rich information basis for subsequent data analysis and processing.

[0071] In one embodiment, if Figure 3 As shown, the processing device 2 is specifically used to display a highlighted line in the set area according to the standard image of the sealing strip 3 to be tested.

[0072] First, the processing device 2 needs to have a standard image of the sealing strip 3 to be tested as a reference. This standard image can be based on a theoretical design drawing or a known qualified sealing strip image. It can be understood that the set area refers to the area that needs special attention during the inspection process, such as the location of the key size or shape feature of the sealing strip.

[0073] Furthermore, the processing device 2 generates highlighted lines in the set area according to the standard image. These lines may be contour lines, center lines, tolerance range lines, etc., which are used to guide the operator to judge the quality of the sealing strip 3 to be tested.

[0074] Exemplarily, the sealing strip 3 to be tested is clamped on the tooling 10. The solid line is the actual measured profile (i.e., cross-sectional image) of the sealing strip 3 to be tested; the dotted line (highlighted line) is the key position range set according to theoretical data and tolerance range, i.e., the theoretical profile of a qualified product or the tolerance band of a critical dimension.

[0075] Specifically, when the solid line (actual measured contour) is completely within the dotted line (theoretical tolerance range), the sealing strip is judged to meet the standard. If the solid line exceeds the range of the dotted line, it means that some parts of the sealing strip do not meet the design requirements or tolerance standards.

[0076] In this embodiment, through intuitive graphic display, operators can quickly identify sealing strips that do not meet the standards and take corresponding measures to improve the production process.

[0077] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0078] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A device for detecting a section of a sealing strip, characterized in that: include: A fixing part, used for mounting the sealing strip to be tested; A bracket, arranged above the fixing member; At least one laser, each laser is mounted on the bracket, the laser transmitter is used to emit laser to each collection point on the outer surface of the sealing strip to be tested, and the laser receiver is used to receive the reflected signal returned by each collection point; The processing device is connected to each laser and is used to receive the reflected signal returned by each collection point and output the cross-sectional image of the sealing strip to be tested.

2. The detection device according to claim 1, characterized in that: There are three lasers, of which two lasers are installed on the bracket at the same horizontal line, and the projection position of another laser installed on the bracket on the horizontal line is located at the midpoint of the line between the other two lasers.

3. The detection device according to claim 2, characterized in that: The detection device also includes: A test platform is used to install the fixing member and the bracket; wherein the bracket and the test platform are slidably connected along a first direction, and the first direction is a direction perpendicular to the cross section of the sealing strip to be tested.

4. The detection device according to claim 3, characterized in that: The sealing strip to be tested is plug-fitted or snap-fitted with the fixing piece.

5. The detection device according to claim 4, characterized in that: The length of the fixing member in the first direction is greater than the length of the sealing strip to be tested in the first direction.

6. The detection device according to claim 3, characterized in that: A boss is arranged on the test platform, and the fixing piece is plug-fitted or snap-fitted with the boss.

7. The detection device according to claim 6, characterized in that: The boss and the testing platform are detachably arranged.

8. The detection device according to claim 2, characterized in that: The bracket is a door-shaped, arch-shaped or U-shaped mounting frame, and each laser is mounted on the inner wall of the bracket on one side close to the fixing member.

9. The detection device according to claim 1, characterized in that: The laser is configured to emit line laser light.

10. The detection device according to claim 1, characterized in that: The processing device is specifically used to display a highlighted line in a set area according to the standard image of the sealing strip to be tested.

Images