A detection device

Abstract

The application relates to the technical field of automobile part detection, and provides a detection device for detecting a fuel filler of an automobile side outer plate, which comprises a detection piece and a positioning piece. At least part of the detection piece is arranged in the fuel filler, and the detection piece is used for determining whether the fuel filler meets preset requirements, the preset requirements comprising at least one of a first preset value and a second preset value, wherein the first preset value is the radial distance between the detection piece and the fuel filler; and the second preset value is the height difference in the axial direction between the edge line of the outer surface of the detection piece and the circumferential line of the side outer plate located in the fuel filler. The positioning piece is arranged on the detection piece, and the positioning piece is used for abutting against the wall surface of the fuel filler. The detection device provided by the application can improve the detection efficiency of the fuel filler.

Description

Technical Field

[0001] This application relates to the field of automotive parts testing technology, and more particularly to a testing device. Background Technology

[0002] The side panel of a car has a fuel filler cap. In related technologies, a coordinate measuring machine is used to detect the fuel filler cap, but the detection efficiency is low and it cannot be detected quickly. Summary of the Invention

[0003] In view of this, the present application aims to provide a detection device that can improve the detection efficiency of oil filler caps.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] This application discloses a detection device for detecting the fuel filler neck of a vehicle side panel, the detection device comprising:

[0006] A detection element, at least a portion of which is disposed within the filler neck, is used to determine that the filler neck meets a preset requirement. The preset requirement includes at least one of a first preset value and a second preset value, wherein the first preset value is the radial distance between the detection element and the filler neck; and the second preset value is the axial height difference between the edge line of the outer surface of the detection element and the perimeter line of the side panel located at the filler neck.

[0007] A positioning element is disposed on the detection element, and the positioning element is used to abut against the wall surface of the filler port.

[0008] In one embodiment, the first preset value is between 0 mm and 3 mm; and / or,

[0009] The second preset value is between 0mm and 3mm.

[0010] In one embodiment, the filler port has a first circumferential surface, a stepped surface, and a second circumferential surface. The first circumferential surface is located axially outside the second circumferential surface. The stepped surface connects the first circumferential surface and the second circumferential surface. The positioning member includes a first positioning part, which is disposed on the inner surface of the detection member and is used to abut against the first circumferential surface.

[0011] In one embodiment, the first positioning part includes a plurality of positioning blocks, which are arranged circumferentially at intervals along the inner peripheral surface of the detection element.

[0012] In one embodiment, the positioning member includes a second positioning part located inside the first positioning part along the axial direction, and the second positioning part is used to abut against the second circumferential surface.

[0013] In one embodiment, the detection device includes a pad disposed on the inner surface of the detection element, with a plane perpendicular to the axial direction as the projection plane, the projection of the pad being located within the projection range of the detection element, and the second positioning part being connected to the pad.

[0014] In one embodiment, the second positioning part includes a plurality of positioning bodies, which are arranged at circumferential intervals along the pad.

[0015] In one embodiment, the positioning body includes a fixing plate and an abutment plate. The fixing plate is disposed on the side of the pad away from the detection element, and the abutment plate is bent from the fixing plate toward the detection element. The abutment plate is used to abut against the second circumferential surface.

[0016] In one embodiment, the detection device includes a connector disposed on the inner surface of the detection element, the connector being detachably connected to the stepped surface.

[0017] In one embodiment, the detection device includes a handle disposed on the outer surface of the detection element, and a hand-accommodating space is formed between the handle and the detection element.

[0018] This application discloses a detection device. By placing at least a portion of the detection element at the fuel filler neck, the detection element can simulate the matching and passage of the fuel filler neck cap, making the detection of the fuel filler neck more accurate. The device measures the radial distance between the detection element and the fuel filler neck, and the axial height difference between the edge of the outer surface of the detection element and the perimeter of the side panel at the fuel filler neck. It then determines whether the distance is a first preset value and / or whether the height difference is a second preset value. This simplifies the measurement and judgment conditions for the distance and height difference, resulting in high detection efficiency and accuracy. Before detection, a positioning element is positioned below the wall of the fuel filler neck to form a positioning constraint. This avoids inaccurate measurement data due to shaking of the detection element during detection, improving the accuracy of the detection results. Furthermore, the positioning constraint ensures that the relative position of the detection element to the fuel filler necks remains consistent when measuring multiple fuel filler necks, ensuring repeatability and consistency of the detection and enabling rapid detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a detection device provided in an embodiment of this application, wherein the detection device is placed inside the oil filler neck;

[0020] Figure 2 for Figure 1 A structural diagram from another perspective;

[0021] Figure 3 for Figure 1 A schematic diagram of the filler neck on the outer panel of the middle side panel;

[0022] Figure 4 for Figure 2 A schematic diagram of the detection device.

[0023] Explanation of reference numerals in the attached figures

[0024] Detection device 100; Detection component 1; Weight reduction hole 1a; Body 11; Detection block 12; Positioning component 2; First positioning part 21; Positioning block 211; Second positioning part 22; Positioning body 221; Fixing plate 2211; Positioning hole 2211a; Abutting plate 2212; Guide surface 2212a; Handle 3; Hand-holding space 3a; Pad plate 4; Connector 5; Side outer panel 200; Oil filler 201; First circumferential surface 201a; Step surface 201b; Second circumferential surface 201c. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0026] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In related technologies, the opening size of the filler neck is measured using a special measuring tool or a coordinate measuring machine. However, this method cannot simulate the matching and passability of the filler neck cap when it is installed inside the filler neck. In other words, it cannot quantify the matching relationship between the filler neck cap and the filler neck during subsequent assembly.

[0028] This application provides a detection device; please refer to [link / reference]. Figures 1 to 4 The detection device 100 includes a detection element 1 and a positioning element 2. At least a portion of the detection element 1 is disposed within the filler neck 201 to determine whether the filler neck 201 meets preset requirements. The preset requirements include at least one of a first preset value and a second preset value, wherein the first preset value is the radial distance between the detection element 1 and the filler neck 201; and the second preset value is the axial height difference between the edge line of the outer surface of the detection element 1 and the periphery line of the side panel 200 located at the filler neck 201.

[0029] Positioning element 2 is set on detection element 1, and positioning element 2 is used to abut against the wall of oil filler port 201.

[0030] The present application provides a detection device 100, which, by setting at least a portion of the detection element 1 on the filler neck 201, can simulate the matching and passability of the filler neck cap installed on the filler neck 201, thereby making the detection of the filler neck 201 more accurate. By measuring the radial distance between the detection element 1 and the filler neck 201, and the axial height difference between the edge of the outer surface of the detection element 1 and the perimeter of the side panel 200 at the filler neck 201, it is determined whether the distance is a first preset value and / or whether the height difference is a second preset value. In this way, the measurement and judgment conditions of the distance and height difference are relatively simple, and the detection efficiency and accuracy are high. Before detection, the positioning element 2 is lower than the wall surface of the filler neck 201 to form a positioning constraint. On the one hand, this can avoid the detection element 1 from shaking during detection, which would cause inaccurate measurement data and improve the accuracy of the detection results. On the other hand, the positioning element 2 abuts and constrains the positioning, which can ensure that the relative position of the detection element 1 with the filler neck 201 remains consistent when measuring multiple filler necks 201, which can ensure the repeatability and consistency of the detection and achieve rapid detection.

[0031] For example, in one embodiment, the detection component 1 can be manufactured based on the 3D model size data of the oil filler cap. In this way, on the one hand, after the oil filler cap 201 meets the preset requirements, the subsequent oil filler cap can be directly installed inside the oil filler cap 201, and the matching between the oil filler cap and the oil filler cap 201 is good; on the other hand, the degree of matching between the oil filler cap and the side panel 200 can be simulated and quantified by measuring the spacing and height difference, providing data support for the subsequent improvement of the oil filler cap.

[0032] For example, in one embodiment, the fuel filler port 201 mentioned herein may be the fuel filler port 201 of the side panel 200 of a conventional fuel vehicle, or it may be the charging port of the side panel 200 of a hybrid vehicle or a pure electric vehicle.

[0033] In one embodiment, the first preset value is between 0mm and 3mm. For example, the first preset value can be 0mm, 1mm, 2mm, or 3mm, etc. In this way, by setting an appropriate first preset value, on the one hand, the dimensional machining accuracy of the filler neck 201 can be reduced; on the other hand, the sealing performance of the subsequent filler neck cap and filler neck 201 can be improved, reducing the entry of impurities and moisture into the filler neck 201; and furthermore, it can make the appearance of the car more aesthetically pleasing.

[0034] In one embodiment, the second preset value is between 0mm and 3mm. For example, the second preset value can be 0mm, 1mm, 2mm or 3mm, etc. Here, by setting an appropriate second preset value, the subsequent oil filler cap will not protrude too much from the oil filler cap 201. This not only reduces wind resistance, but also makes the car's appearance more aesthetically pleasing.

[0035] In one embodiment, the spacing is measured using a gap gauge. During measurement, the gap gauge can be inserted at the radial distance between the detection element 1 and the filler port 201, and then the data is read. The spacing is measured using the gap gauge. On the one hand, the gap gauge has high measurement accuracy; on the other hand, the measurement data between the detection element 1 and the filler port 201 can be obtained in a short time, achieving rapid measurement and high work efficiency; furthermore, the gap gauge is simple to operate, saving time and effort.

[0036] The height difference is measured using a height difference ruler. Here, the two measuring ends of the height difference ruler are placed at the edge line of the outer surface of the test piece 1 and at the perimeter line of the side panel 200 located at the filler port 201, respectively. The data is then read. The height difference can be measured with millimeter-level accuracy, which is highly accurate.

[0037] In one embodiment, please refer to Figure 1 and Figure 2 The detection device 100 includes a handle 3, which is disposed on the side of the detection element 1 away from the positioning element 2. A hand-accommodating space 3a is formed between the handle 3 and the detection element 1. Exemplarily, the shape of the handle 3 is not limited; for example, it can be approximately inverted "U" shaped. The handle 3 can be fixed to the detection element 1 by fasteners such as screws or bolts. In this way, a hand-accommodating space 3a is formed between the handle 3 and the detection element 1, which facilitates the operator to grasp, hold, and move the detection element 1 to achieve rapid detection of the oil filler 201 and further improve detection efficiency.

[0038] In one embodiment, please refer to Figure 1 and Figure 4 The testing component 1 has a weight-reducing hole 1a extending through the axial direction. For example, the weight-reducing hole can be located at the center of the testing component 1. By providing the weight-reducing hole 1a, on the one hand, the weight of the testing component 1 can be reduced, making it easier for operators to handle, saving time and effort, and also reducing the manufacturing cost of the testing component 1; on the other hand, by forming the weight-reducing hole 1a, when placing the testing component 1, the operator can observe the constraint and positioning of the positioning component 2 through the weight-reducing hole 1a.

[0039] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 4The filler port 201 has a first circumferential surface 201a, a stepped surface 201b, and a second circumferential surface 201c. The first circumferential surface 201a is located axially outside the second circumferential surface 201c, and the stepped surface 201b connects the first circumferential surface 201a and the second circumferential surface 201c. For example, the stepped surface 201b can be perpendicularly connected to the first circumferential surface 201a and the second circumferential surface 201c. The positioning member 2 includes a first positioning part 21, which is disposed on the inner surface of the detection member 1. That is, the first positioning part 21 is disposed on the side of the detection member 1 away from the handle 3. The first positioning part 21 is used to abut against the first circumferential surface 201a. On the one hand, after the constraint positioning is completed by the first positioning part 21 abutting against the first circumferential surface 201a, the detection member 1 can be directly measured, shortening the detection time; on the other hand, the abutment between the first positioning part 21 and the first circumferential surface 201a can prevent the detection member 1 from shaking during measurement, ensuring the accuracy of the measured data.

[0040] In one embodiment, please refer to Figure 1 and Figure 4 The first positioning part 21 includes a plurality of positioning blocks 211, which are arranged at intervals along the circumferential direction of the inner peripheral surface of the detection element 1. For example, the number of positioning blocks 211 is not limited. For instance, there can be four positioning blocks 211. The four positioning blocks 211 can be arranged on both sides of the inner peripheral surface of the detection element 1 along the width direction, with two positioning blocks 211 on each side. The two positioning blocks 211 on each side are also spaced apart along the length direction. In this way, by setting multiple positioning blocks 211, the detection element 1 can be constrained and positioned in multiple directions, which can make the detection result of the detection element 1 more accurate.

[0041] For example, in one embodiment, the positioning block 211 can be cylindrical in shape, so that the outer peripheral side of the positioning block 211 can better contact and cooperate with the first circumferential surface 201a, thereby increasing the contact area between the two and forming a better limiting constraint, reducing the shaking of the detection element 1.

[0042] In one embodiment, please refer to Figure 1 and Figure 4 The positioning element 2 includes a second positioning part 22, which is located inside the first positioning part 21 along the axial direction. The second positioning part 22 is used to abut against the second circumferential surface 201c. Here, by contacting and abutting the second positioning part 22 against the second circumferential surface 201c, the detection element 1 is constrained and positioned on the second circumferential surface 201c. This further improves the working stability of the detection element 1 during detection and the accuracy of the detection results.

[0043] In one embodiment, please refer to Figure 2The detection component 1 includes a body 11 and a detection block 12, with the detection block 12 fitted around the outer periphery of the body 11. For example, the shape of the body 11 is not limited; it can be rectangular. The detection block 12 can be multiple pieces sequentially spliced ​​onto the outer periphery of the body 11 and inclined inwards. That is, one end of the detection block 12 is connected to the body 11, and the other end of the detection block 12 is inclined inwards. The outer surface of the detection component 1 is not coplanar with the outer surface of the body 11. This allows for better matching of the edge of the side panel 200 at the fuel filler neck 201, better simulating the assembly position of the fuel filler neck cap at the fuel filler neck 201, and making the detection results closer to the actual assembly of the fuel filler neck cap.

[0044] In one embodiment, please refer to Figure 1 and Figure 4 The detection device 100 includes a pad 4 disposed on the inner surface of the detection element 1. For example, the pad 4 can be disposed on the side of the detection element 1 away from the handle 3. Using a plane perpendicular to the axial direction as the projection plane, the projection of the pad 4 lies within the projection range of the detection element 1, and the second positioning part 22 is connected to the pad 4. In this way, on the one hand, the second positioning part 22 can better abut against the second circumferential surface 201c, avoiding structural interference between the second positioning part 22 and the first circumferential surface 201a; on the other hand, since the pad 4 is disposed on the inner surface of the detection element 1, and the second positioning part 22 is disposed on the pad 4, there is a height difference between the first positioning part 21 and the second positioning part 22, which can prevent structural interference between the first positioning part 21 and the second positioning part 22.

[0045] In one embodiment, please refer to Figure 4 The second positioning part 22 includes a plurality of positioning bodies 221, which are arranged at intervals along the circumference of the pad 4. For example, the number of positioning bodies 221 is not limited. For instance, there can be 6 positioning bodies 221. Two positioning bodies 221 are provided on each side of the pad 4 along the width direction, and one positioning body 221 is provided on each side of the pad 4 along the length direction. In this way, by providing a plurality of positioning bodies 221, the detection element 1 can be constrained and positioned in multiple directions, which can make the detection result of the detection element 1 more accurate.

[0046] In one embodiment, please refer to Figure 1 and Figure 4The positioning body 221 includes a fixing plate 2211 and an abutment plate 2212. The fixing plate 2211 is connected to the abutment plate 2212. The fixing plate 2211 is disposed on the side of the pad 4 away from the detection piece 1. The end of the abutment plate 2212 away from the fixing plate 2211 is bent toward the detection piece 1. The abutment plate 2212 abuts against the second circumferential surface 201c. For example, the fixing plate 2211 has positioning holes 2211a, and the number of positioning holes 2211a can be 4. Two of the four positioning holes 2211a of the fixing plate 2211 are first positioned with the pad 4 by positioning pins, and then the other two of the four positioning holes 2211a are fixed with the pad 4 by fasteners such as screws or bolts. In this way, the installation position of the fixing plate 2211 can be adjusted by pre-positioning so that the abutment plate 2212 can accurately abut against the constraint position of the second circumferential surface 201c. Then, by fixing with fasteners, a stable support can be provided for the abutment plate 2212 to abut against the second circumferential surface 201c, so that the detection piece 1 is not easy to shake after being placed in the oil filler port 201, and the working stability is good.

[0047] It should be noted that the constraint position here refers to the position where the second circumferential surface 201c contacts the abutment plate 2212, and the position where the abutment plate 2212 contacts the second circumferential surface 201c is the constraint positioning point.

[0048] For example, in one embodiment, the positioning body 221 can provide a constraint positioning point for the detection component 1. The number and position of the positioning bodies 221 are determined according to the GD&T (Geometric Dimensioning and Tolerancing) of the filler port 201. Some positions of the filler port 201 have high precision requirements and require more constraint positioning points to complete the positioning. For example, as shown in the figure, two constraint positioning points need to be set on one side of the filler port 201 along the length direction to complete the positioning. Since the space on one side of the pad 4 along the length direction is small, it is not possible to install two positioning bodies 221. Therefore, the positioning body 221 is improved. The positioning body 221 has a fixing plate 2211 and two abutting plates 2212. The fixing plate 2211 has an abutting plate 2212 on each side along the width direction. In this way, the positioning body 221 can provide two constraint positioning points, and the space utilization rate is high.

[0049] For example, in one embodiment, the fixing plate 2211 and the abutment plate 2212 can be integrally formed, which can improve the connection strength between the fixing plate 2211 and the abutment plate 2212.

[0050] In one embodiment, please refer to Figure 4The abutment plate 2212 has a guide surface 2212a near the fixing plate 2211. The abutment plate 2212 can be guided by the guide surface 2212a to abut against the second outer peripheral surface. In this way, when the detection piece 1 is placed in the oil filler port 201, the guide surface 2212a formed on the abutment plate 2212 will first contact the second peripheral surface 201c and then, through the guiding effect, allow the abutment plate 2212 to abut against the second peripheral surface 201c more smoothly.

[0051] In one embodiment, please refer to Figure 4 The detection device 100 includes a connector 5 disposed on the inner surface of the detection member 1. The connector 5 is used for detachable connection with the step surface 201b. For example, the connector 5 can be disposed on the inner surface of the detection member 1 near the positioning block 211. The number of connectors 5 is not limited. For example, there can be four connectors 5, with one connector 5 disposed near each positioning block 211. The connectors 5 are detachably connected to the step surface 201b, which can further make the constraint positioning of the first positioning part 21 more reliable.

[0052] For example, in one embodiment, the detachable method between the connector 5 and the step surface 201b can be magnetic attraction. For example, the step surface 201b has a connecting part. The magnetic attraction method is not limited to the following: the connector 5 and the connecting part can both be permanent magnets; one of the connector 5 and the connecting part is a permanent magnet, and the other of the connector 5 and the connecting part can be a metal that can be attracted by a permanent magnet, such as iron, nickel or cobalt.

[0053] For example, in one embodiment, the oil filler port 201 on the side panel 200 can be inspected on a workshop assembly line. For instance, an inspection point can be set up on the assembly line. When the side panel 200 passes the inspection point, the inspection piece 1 can be placed into the oil filler port 201 by manual operation or automatic machine inspection, which is highly efficient. Alternatively, the side panel 200 can be moved offline for inspection. For instance, the side panel 200 can be mounted on a dedicated side panel 200 inspection fixture, and then the inspection piece 1 can be placed into the oil filler port 201 for inspection.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A detection device for detecting the fuel filler neck of a vehicle side panel, characterized in that, include: A detection element, at least a portion of which is disposed within the filler neck, is used to determine that the filler neck meets a preset requirement. The preset requirement includes at least one of a first preset value and a second preset value, wherein the first preset value is the radial distance between the detection element and the filler neck; and the second preset value is the axial height difference between the edge line of the outer surface of the detection element and the perimeter line of the side panel located at the filler neck. A positioning element is disposed on the detection element. The positioning element is used to abut against the wall of the filler port. The positioning element includes a first positioning part and a second positioning part. The first positioning part is disposed on the inner surface of the detection element, and the second positioning part is located on the inner side of the first positioning part along the axial direction. A connector, wherein the connector is disposed on the inner surface of the detection element; The filler neck has a first circumferential surface, a stepped surface, and a second circumferential surface. The first circumferential surface is located axially outside the second circumferential surface, and the stepped surface connects the first circumferential surface and the second circumferential surface. The first positioning part is used to abut against the first circumferential surface, the second positioning part is used to abut against the second circumferential surface, and the connecting member is used to be detachably connected to the step surface. The detachable method between the connecting member and the step surface is magnetic attraction.

2. The detection device according to claim 1, characterized in that, The first preset value is between 0 mm and 3 mm; and / or, The second preset value is between 0 mm and 3 mm.

3. The detection device according to claim 1, characterized in that, The first positioning part includes a plurality of positioning blocks, which are arranged circumferentially at intervals along the inner circumferential surface of the detection element.

4. The detection device according to claim 1, characterized in that, The detection device includes a pad disposed on the inner surface of the detection element, with a plane perpendicular to the axial direction as the projection plane, the projection of the pad being located within the projection range of the detection element, and the second positioning part being connected to the pad.

5. The detection device according to claim 4, characterized in that, The second positioning part includes a plurality of positioning bodies, which are arranged at intervals along the circumference of the pad.

6. The detection device according to claim 5, characterized in that, The positioning body includes a fixing plate and an abutment plate. The fixing plate is disposed on the side of the pad away from the detection element. The abutment plate is bent from the fixing plate toward the detection element and is used to abut against the second circumferential surface.

7. The detection device according to claim 1, characterized in that, The detection device includes a handle, which is disposed on the outer surface of the detection element, and a hand-accommodating space is formed between the handle and the detection element.

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