Automobile hidden door handle tester

Abstract

This invention provides a hidden door handle inspection tool for automobiles. The frame includes a door simulation plate, which houses a mounting base for the door handle body. The door handle cover of the hidden door handle assembly is exposed within a recessed area on the door handle cover of the simulation plate. A detection base is positioned adjacent to the simulation plate. The surface difference meter frame is L-shaped, with the end of the first support rod inserted into the detection base, and the surface difference meter positioned at the freely suspended end of the second support rod, extending towards the side where the door handle cover is located. This invention provides a door simulation plate, allowing the hidden door handle assembly to be assembled onto the simulation plate according to a real vehicle model. The detection base, positioned near the edge of the simulation plate, ensures improved inspection accuracy. Furthermore, since the gap between the edge of the door handle cover and the contour of the recessed area is exposed, inspecting this gap is extremely convenient, improving the inspection effect.

Description

Technical Field

[0001] This invention relates to a tool for inspecting door handles, specifically a tool for inspecting concealed door handles. Background Technology

[0002] With the rise of the electric vehicle industry, concealed door handles are being used more and more widely in automobiles, especially in new energy vehicles. The concealed door handle is embedded in the outer door panel, and the consistency of the circumferential gap and surface difference between the concealed door handle and the handle mounting hole on the outer door panel directly affects the assembly accuracy and perceived quality.

[0003] Currently, conventional workpiece dimension measuring fixtures primarily use surface difference gauges or dial indicators to measure product surface differences. These gauges and dial indicators measure by using one side of a simulation block as a reference while the other side contacts the product, resulting in poor measurement accuracy and low efficiency. Therefore, providing a fixture for automotive concealed door handles is a necessary and urgent task.

[0004] The document titled "An Installation Structure and Method for a Concealed Door Handle for Automobiles" (CN 113216768A, hereinafter referred to as Document 1) discloses a concealed door handle installation structure and method that takes into account the uniformity of the gap 13 between the handle outer cover plate 8 and the outer door panel 2. Specifically, it uses a hook angle 9 to achieve positioning in the Y direction, and a positioning groove 6 to position the handle structure in the X and Z directions, ensuring accurate installation of the entire handle structure and guaranteeing a uniform gap 13 around the edge of the handle structure. However, Document 1 only considers the gap 13 between the handle outer cover plate 8 and the outer door panel 2 and does not address methods for detecting the uniformity of the gap.

[0005] The document titled "An Inspection Tool for Automobile Door Handles" (CN212363014U, hereinafter referred to as Document 2) includes three inspection items: the first is the detection of the handle travel, including the detection of the initial position, the final position, and the maximum position.

[0006] Secondly, a 0.8 to 1.2 go / no-go gauge is used to check the gap between the handle and the rear cover;

[0007] Thirdly, the surface difference between the handle and the back cover is checked using a ±0.2 surface difference gauge.

[0008] Since the object of inspection in Reference 2 is a conventional external door handle, it uses a conventional go / no-go gauge to measure the gap between the handle and the rear shell, and a surface difference gauge or surface difference table to measure the surface difference data. When measuring data, surface difference gauges and tables use one side in contact with a simulation block as a reference, while the other side contacts the product for measurement. This results in poor measurement accuracy and low measurement efficiency. In particular, the shape of the external door handle's trim and the vehicle body trim inherently has a significant curvature change, so there is no strictly defined surface difference error. For conventional external door handles in existing technology, surface difference measurement is meaningless. Reference 2 does not provide a detailed explanation of the specific measurement of surface difference, and only briefly mentions using a ±0.2 surface difference gauge to measure the surface difference between the handle and the rear shell.

[0009] Since the consistency requirements between the outer surface of the handle and the outer surface of the door are extremely strict when the hidden door handle is in a hidden recessed position, the gap between the outer contour of the handle and the edge of the recessed area on the door that houses the handle is also extremely important. It can be seen that the design of the inspection tool for the hidden door handle is a very necessary and urgent task at present. Summary of the Invention

[0010] The purpose of this invention is to provide a hidden door handle inspection tool for automobiles, which can not only detect the surface difference of the door handle cover, but also easily detect the assembly gap between the door handle cover and the door simulation panel with high inspection efficiency.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: a hidden door handle inspection tool for automobiles, comprising a frame, characterized in that: a door simulation plate is arranged in the middle of the frame, a mounting seat for the door handle body of the hidden door handle assembly is provided on the back of the door simulation plate, the door handle cover plate of the hidden door handle assembly is exposed in the door handle cover plate receiving recess on the door simulation plate, a detection base is arranged near the edge of the door simulation plate, the face difference meter frame is an L-shaped frame, the end of the first support rod of the face difference meter frame is inserted and mounted on the detection base, the face difference meter is arranged at the free suspension end of the second support rod, and the face difference meter extends outward toward the side where the door handle cover plate is located.

[0012] The above solution provides a door simulation plate, on which the concealed door handle assembly is assembled according to the actual vehicle. A detection base is arranged near the edge of the door simulation plate, thus avoiding the solution of placing a surface difference meter on the door simulation plate. The detection base provides an accurate detection benchmark for the positioning of the surface difference meter frame, ensuring improved detection accuracy. At the same time, since the gap between the edge of the door handle cover and the contour of the door handle cover recess is exposed, it is extremely convenient to detect the gap between the two, improving the detection effect. Attached Figure Description

[0013] Figure 1This is a frontal perspective perspective view of the concealed door handle assembly to be tested according to the present invention;

[0014] Figure 2 , 5 These are perspective views of the front and back of the concealed door handle assembly to be tested installed in this invention;

[0015] Figure 3 This is the left view of the diagram; Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0016] Figure 6 It is a three-dimensional structural diagram of the frame of the surface difference meter equipped with the surface difference meter;

[0017] Figure 7 This is the front view of the detection base. Detailed Implementation

[0018] like Figure 1 , 2 As shown in Figure 5, a hidden door handle inspection tool for automobiles includes a frame 10. A door simulation plate 20 is arranged in the middle of the frame 10. A mounting seat 21 for the door handle body 31 of the hidden door handle assembly 30 is provided on the back of the door simulation plate 20. The door handle cover 32 of the hidden door handle assembly 30 is exposed on the door handle cover receiving recess 22 on the door simulation plate 20. A detection base 40 is arranged near the edge of the door simulation plate 20. The face difference meter frame 60 is an L-shaped frame. The end of the first support rod 61 of the face difference meter frame 60 is inserted and mounted on the detection base 40. The free suspension end of the second support rod 62 is provided with a face difference meter 50. The face difference meter 50 extends outward toward the side where the door handle cover 32 is located.

[0019] In the above scheme, a car door simulation plate 20 is arranged in the middle of the frame 10 to simulate the actual assembly of a car's hidden door handle, thereby obtaining the detection of relevant parameters under the vehicle's assembly state. Since the car door simulation plate 20 has a curved surface shape similar to that of a real car, the reference position for the surface difference meter 50 detection in this invention avoids the conventional approach of selecting a reference on the curved surface of the car door simulation plate 20. Otherwise, selecting the reference for the surface difference meter 50 on the curved surface of the car door simulation plate 20 would be extremely difficult, because the car door simulation plate 20 is a thin plate, and it is very difficult to machine the reference surface for the surface difference meter 50 on it. Furthermore, even if the reference surface for the surface difference meter 50 is machined, the stability of the reference surface's posture cannot be guaranteed after the surface difference meter 50 is placed on it, thus making it difficult to guarantee measurement accuracy. Therefore, the detection base 40 for arranging the surface difference meter 50 in this invention is arranged near the edge of the car door simulation plate 20, which not only improves detection efficiency but, more importantly, ensures detection accuracy and stability.

[0020] There are multiple locations for surface difference detection. Since the detection position needs to be changed quickly during testing, this invention adopts the following solution: The positioning reference surface 41 of the detection base 40 has positioning holes or positioning pins perpendicular to the positioning reference surface 41. The end face of the first support rod 61 of the surface difference meter frame 60 has positioning pins or positioning holes that engage with the aforementioned positioning holes or positioning pins. The end face of the first support rod 61 of the surface difference meter frame 60 is attached to the positioning reference surface 41. This solution not only solves the problem of quickly changing the detection position but also ensures accurate positioning during testing, i.e., the end face of the first support rod 61 is attached to the positioning reference surface 41.

[0021] Preferably, the positioning reference surface 41 has two positioning holes spaced apart, and two positioning pins 611 are provided on the end face of the first support rod 61. For example... Figure 6 As shown, this solution solves the problem of position accuracy of the face difference meter frame 60 during detection, that is, it ensures that the face difference meter 50 is detected at the set detection position, and avoids the phenomenon that the meter head 511 of the meter rod 51 of the face difference meter 50 deviates from the set detection point.

[0022] The positioning reference surface 41 has a circular main positioning hole 411 and an oblong secondary positioning hole 412. The core of the main positioning hole 411 is on the extension line of the major diameter of the secondary positioning hole 412. Two cylindrical positioning pins 611 are provided on the end face of the first support rod 61. Figure 6 , 7 As shown, the two positioning pins 611 on the end face of the first support rod 61 are both cylindrical pins. When assembled with the main positioning hole 411 and the secondary positioning hole 412, they not only improve the efficiency of insertion and removal but also ensure the positioning accuracy of the first support rod 61.

[0023] To obtain test values ​​directly and quickly and for easy reading, a zeroing base 70 is provided on the frame 10. The reference surface of the zeroing base 70 has positioning holes that engage with the positioning pin 611 on the first support rod 61. (See also...) Figure 2 , 4 5. When the reference surface of the zeroing base 70 is reliably attached to the end face of the first support rod 61, the surface difference meter 50 is zeroed. When the zeroed surface difference meter 50 is placed on the positioning reference surface 41 of the detection base 40 for specific testing, the value of the detection point set is the surface difference value between the design value and the actual value, which can improve the efficiency of testing.

[0024] Preferably, the frame surface 11 on which the door simulation panel 20 is mounted on the frame 10 is an inclined vertical surface, and the panel surface of the door simulation panel 20 is arranged in an inclined vertical position on the frame surface 11, in the same position as the actual vehicle. The zeroing base 70 is arranged at the upper edge of the frame 10. Figure 4As shown, this scheme not only enables measurement under actual vehicle conditions, but also facilitates the repositioning detection operation of the surface difference table 50.

[0025] The detection base 40 is set to correspond to the measurement points on the door handle cover 32 to be tested. The measurement points on the door handle cover 32 to be tested are set at the spacing positions on the edge of the door handle cover 32 to be tested, and are located on the upper and lower sides and the end. For example Figure 2 As shown, in this invention, a total of 10 detection bases 40 are arranged, four on the top, one on the right, and five on the bottom, which basically meets the coverage requirements of the measurement points on the door handle cover plate 32 to be tested. When the surface difference table 50 is arranged on each detection base 40, it corresponds to a set detection point.

[0026] To ensure the reliability, accuracy, and efficiency of the testing, the normal direction of the positioning reference surface 41 on the testing base 40 is parallel to the normal direction of the design value of the point to be measured on the door handle cover 32. The positioning reference surface 41 and the point where the design value of the point to be measured on the door handle cover 32 is located are coplanar. For each point to be tested, its spatial coordinates and normal direction are determined. The position and orientation of the positioning reference surface 41 of the testing base 40 are determined by the spatial coordinates and normal direction of the point to be tested, thereby positioning the face difference meter frame 60 and further limiting the coordinates of the meter head 511 of the face difference meter 50 to ensure precise matching with the set point to be tested. Figure 2 As can be seen, the orientation of each detection base 40 and the normal direction of the positioning reference surface 41 are different. This is because the position and orientation of the positioning reference surface 41 of the detection base 40 are determined based on the spatial coordinates and normal direction of the point to be detected.

[0027] Preferred, such as Figure 7 As shown, the detection base 40 is a rectangular plate. The main positioning hole 411 and the secondary positioning hole 412 are located at both ends in the length direction and in the middle in the width direction. The detection base 40 is also provided with a base connecting hole 413 and a base positioning hole 414. The base connecting hole 413 and the base positioning hole 414 are respectively located on both sides of the line connecting the main positioning hole 411 and the secondary positioning hole 412. The line connecting the two base connecting holes 413 and the line connecting the two base positioning holes 414 are arranged to intersect. In the above solution, on the one hand, it is necessary to solve the positioning and connection problem between the detection base 40 and the frame surface 11. That is, through the precise positioning between the two base positioning holes 414 and the frame surface 11, the connecting piece is used to connect and fix the base connecting hole 413 to the frame surface 11. The main positioning hole 411 and the secondary positioning hole 412 are used to engage with the positioning pin 611 on the first support rod 61. The position and accuracy of the main positioning hole 411 and the secondary positioning hole 412 are very important, as they determine whether the position of the meter head 511 of the surface difference meter 50 matches the set position coordinates of the point to be tested.

Claims

1. A hidden door handle inspection tool for automobiles, comprising a frame (10), characterized in that: A car door simulation plate (20) is arranged in the middle of the frame (10). A mounting seat (21) for the door handle body (31) of the hidden door handle assembly (30) is provided on the back of the car door simulation plate (20). The door handle cover (32) of the hidden door handle assembly (30) is exposed in the door handle cover receiving recess (22) on the car door simulation plate (20). A detection base (40) is arranged near the edge of the car door simulation plate (20). The face difference meter frame (60) is an L-shaped frame. The end of the first support rod (61) of the face difference meter frame (60) is inserted and set on the detection base (40). The face difference meter (50) is arranged at the free suspension end of the second support rod (62). The face difference meter (50) extends outward to the side where the door handle cover (32) is located. The detection base (40) is set to correspond to the measurement point on the door handle cover plate (32) to be tested; The normal direction of the positioning reference surface (41) on the detection base (40) is parallel to the normal of the design value of the point to be measured on the door handle cover (32), and the positioning reference surface (41) is coplanar with the point where the design value of the point to be measured on the door handle cover (32) to be tested is located. The positioning reference surface (41) of the detection base (40) has a positioning hole or positioning pin perpendicular to the positioning reference surface (41). The end face of the first support rod (61) of the face difference meter frame (60) has a positioning pin or positioning hole that is inserted and matched with the positioning hole or positioning pin. The end face of the first support rod (61) of the face difference meter frame (60) is attached to the positioning reference surface (41). A zeroing base (70) is provided on the frame (10). The reference surface of the zeroing base (70) has a positioning hole that is engaged with the positioning pin (611) on the first support rod (61).

2. The automotive concealed door handle inspection tool according to claim 1, characterized in that: The positioning reference surface (41) has two positioning holes spaced apart, and the end face of the first support rod (61) is provided with two positioning pins (611).

3. The automotive concealed door handle inspection tool according to claim 1, characterized in that: The positioning reference surface (41) is arranged with a circular main positioning hole (411) and an oblong secondary positioning hole (412). The core of the main positioning hole (411) is on the extension line of the major diameter of the secondary positioning hole (412). The two positioning pins (611) on the end face of the first support rod (61) are cylindrical pins.

4. The automotive concealed door handle inspection tool according to claim 1, characterized in that: The frame (11) on which the door simulation plate (20) is mounted is an inclined vertical surface. The plate surface of the door simulation plate (20) is arranged in an inclined vertical position on the frame (11) in the same position as the real vehicle. The zeroing base (70) is arranged at the upper edge of the frame (10).

5. The automotive concealed door handle inspection tool according to claim 1, characterized in that: The measurement points on the door handle cover (32) to be tested are set at the spacing position of the edge of the door handle cover (32) to be tested and are located on the upper and lower sides and the end.

6. The automotive concealed door handle inspection tool according to claim 3, characterized in that: The detection base (40) is a rectangular plate with main positioning holes (411) and secondary positioning holes (412) located at both ends in the length direction and in the middle in the width direction.

7. The automotive concealed door handle inspection tool according to claim 6, characterized in that: The detection base (40) is also provided with a base connection hole (413) and a base positioning hole (414). The base connection hole (413) and the base positioning hole (414) are respectively located on both sides of the line connecting the main positioning hole (411) and the secondary positioning hole (412). The line connecting the two base connection holes (413) and the line connecting the two base positioning holes (414) are arranged to intersect.

Images