Test tray and ADAS testing device

Abstract

The application relates to the technical field of automobile parts, in particular to a test tray and an ADAS test device. The test tray comprises a positioning module and a probe module. The positioning module comprises a supporting part and a floating mechanism, the supporting part is installed on a base through the floating mechanism, a supporting surface of the supporting part is provided with a plurality of positioning pins, and at least two of the positioning pins are different in shape. The probe module is detachably installed on the base. The supporting part provides the supporting surface for stably placing a material piece thereon; the supporting surface is provided with the plurality of positioning pins, one of the two positioning pins which are different in shape can be used for primary positioning, and the other one can be used for secondary positioning, so that the tolerance of a hole position of the material piece in a specific direction can be absorbed, the positioning precision can be ensured, and the tolerance problem of hole spacing of the material piece can be ingeniously solved. The probe module is designed to be detachably installed on the base, the maintenance and replacement of the probe are efficiently and flexibly realized, the structural stability of the test tray is avoided from being affected, and the test tray does not need to be recalibrated after replacement.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and more specifically, to test trays and ADAS test devices. Background Technology

[0002] The test tray is used to transfer parts during processing and testing. The main functional modules of the test tray include a positioning module and a probe module, where the positioning module is used to place the parts and the probe module is used for electrical testing.

[0003] Traditional positioning modules use floating spring columns, where the workpiece is positioned by these columns, and then held in place by pressure blocks on the testing platform. The problem is that while the spring columns provide floating functionality, they cannot achieve accurate positioning, affecting the processing and testing of the workpiece.

[0004] Furthermore, traditional probe modules employ a fixed design, and probe replacement is a frequent operation in pallet maintenance. Each replacement requires disassembling the pallet body, which compromises structural stability and is time-consuming. After replacement, the pallet also needs to be recalibrated.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] This application provides a test tray and an ADAS test device, which solves the technical problems of existing test trays' positioning modules being unable to achieve accurate positioning and probe modules being inconvenient to maintain and replace.

[0007] According to one aspect of this application, a test tray is provided, comprising: a positioning module including a support portion and a floating mechanism, the support portion being mounted on a base via the floating mechanism, the support surface of the support portion being provided with a plurality of positioning pins, wherein at least two positioning pins are of different shapes; and a probe module being detachably mounted on the base.

[0008] In some embodiments, the positioning pins of different shapes include circular positioning pins and rhomboid positioning pins, and the minor axis of the rhomboid positioning pin coincides with the line connecting the center of the circular positioning pin and the center of the rhomboid positioning pin.

[0009] In some embodiments, the circular locating pins and the rhomboid locating pins are distributed at a pair of opposite corners on the support surface; the plurality of locating pins also includes auxiliary locating pins distributed at another pair of opposite corners on the support surface.

[0010] In some embodiments, the floating mechanism includes a support block and a spring column, the support block being mounted on the base and the spring column being connected between the support block and the support portion.

[0011] In some embodiments, the spring posts are distributed at each corner of the support block and the support portion, wherein each spring post includes: a support post disposed on the support block and partially extending into the support portion; and a spring sleeved on the support post and abutting against the support block and the support portion respectively.

[0012] In some embodiments, the support block is further provided with a plurality of positioning posts, which extend into the support portion and are clearance-fitted with the support portion.

[0013] In some embodiments, the support portion is also connected to the support block via a first screw connection.

[0014] In some embodiments, the probe module includes a probe holder detachably connected to the base and a probe pluggably disposed on the probe holder.

[0015] In some embodiments, the probe holder is fixed to the base by a second screw.

[0016] According to another aspect of this application, an ADAS testing apparatus is provided, the ADAS testing apparatus being configured with a test tray as described in any of the above embodiments.

[0017] The beneficial effects of this application compared to the prior art include at least the following:

[0018] The test tray of this application provides a supporting surface through a support section, on which the feed part is stably placed. The support surface is equipped with multiple locating pins, one of which, with two different shapes, serves as the primary locator and the other as the secondary locator. This absorbs tolerances in the hole positions of the feed part in a specific direction, ensuring positioning accuracy while cleverly resolving the tolerance problem of the hole spacing. Furthermore, the support section is mounted on a base via a floating mechanism, achieving a floating function to cooperate with the pressure block of the test bench. This application achieves accurate positioning of the feed part through improvements to the positioning module, thereby ensuring the processing and testing of the feed part.

[0019] The test tray of this application also features a design where the probe module can be detachably mounted on the base, enabling efficient and flexible maintenance and replacement of the probe without disassembling the main body of the tray. This does not affect the structural stability of the test tray, and there is no need to recalibrate the tray after replacement.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 and Figure 2 The structures of the test trays in the embodiments of this application are shown respectively, wherein Figure 1 An exploded view of the support section and other components of the test tray is shown. Figure 2 An exploded view of the probe module and other components of the test tray is shown. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0024] The accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar structures, and therefore, repeated descriptions of them will be omitted.

[0025] The term "multiple" means two or more, unless otherwise explicitly specified. Furthermore, in the description of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, 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, or it can be a connection within two elements.

[0026] It should be noted that, unless otherwise specified, the embodiments of this application and the features in different embodiments can be combined with each other.

[0027] Figure 1 and Figure 2 The structure of the test tray is illustrated in the diagrams. Figure 1 The diagram illustrates the disassembled structure of the support section and other components of the test tray. Figure 2 The diagram illustrates the exploded structure of the probe module and other components of the test tray; combined with Figure 1 and Figure 2 As shown, the test tray provided in this embodiment includes:

[0028] The positioning module 100 includes a support part 110 and a floating mechanism 120. The support part 110 is mounted on the base 300 via the floating mechanism 120. The support surface 111 of the support part 110 is provided with a plurality of positioning pins, wherein at least two positioning pins (112, 113) have different shapes.

[0029] The probe module 200 is detachably mounted on the base 300.

[0030] The test tray of this application provides a supporting surface 111 via a supporting part 110, on which the feed piece is stably placed. The supporting surface 111 is provided with multiple positioning pins, one of which (112, 113) of two different shapes can be used for primary positioning, and the other for secondary positioning. This absorbs the tolerance of the feed piece's hole positions in a specific direction, ensuring positioning accuracy while cleverly resolving the tolerance problem of the feed piece's hole spacing. Furthermore, the supporting part 110 is mounted on the base 300 via a floating mechanism 120, achieving a floating function to cooperate with the pressure block of the test bench. This application achieves accurate positioning of the feed piece through improvements to the positioning module 100, thereby ensuring the processing and testing of the feed piece.

[0031] The test tray of this application also features a design where the probe module 200 can be detachably mounted on the base 300, enabling efficient and flexible maintenance and replacement of the probes without disassembling the main body of the tray. This does not affect the structural stability of the test tray, and there is no need to recalibrate the tray after replacement.

[0032] In some embodiments, the locating pins (112, 113) of different shapes include a circular locating pin 112 and a rhombus-shaped locating pin 113, and the short axis X1 of the rhombus-shaped locating pin 113 coincides with the center line X2 connecting the circular locating pin 112 and the rhombus-shaped locating pin 113. The locating portion of the circular locating pin 112 is circular, and the top may have a conical guide chamfer; the locating portion of the rhombus-shaped locating pin 113 is rhombus-shaped, and the top may have a rhombus-conical guide chamfer. The circular locating pin 112 and the rhombus-shaped locating pin 113 respectively mate with the holes of the workpiece, wherein the circular locating pin 112 mates with the main locating hole of the workpiece, and the rhombus-shaped locating pin 113 mates with the secondary locating hole of the workpiece. A clearance is reserved in the direction of the short axis X1 of the rhombus-shaped locating pin 113 to allow the hole spacing of the workpiece to move in this direction, thereby absorbing the hole spacing tolerance and avoiding the tolerance difference of the hole diameter of the workpiece. The positioning parts of the circular positioning pin 112 and the diamond-shaped positioning pin 113 are on the same horizontal plane, forming a stable two-point support, which can ensure that the material is placed flat.

[0033] Furthermore, in some embodiments, the circular locating pin 112 and the rhomboid locating pin 113 are distributed at a pair of opposite corners of the supporting surface 111; the plurality of locating pins also include auxiliary locating pins 114 distributed at another pair of opposite corners of the supporting surface 111. The auxiliary locating pins 114 play an auxiliary positioning role, cooperating with the circular locating pins 112 and the rhomboid locating pins 113 to achieve four-point precise positioning of the material.

[0034] In some embodiments, the floating mechanism 120 includes a support block 121 and a spring column 122. The support block 121 is mounted on the base 300, and the spring column 122 connects the support block 121 and the support portion 110. By cooperating with the support block 121 and the spring column 122, the support portion 110 is stably supported on the base 300, and the floating design of the support portion 110 is realized.

[0035] In some embodiments, spring posts 122 are distributed at each corner of the support block 121 and the support portion 110, wherein each spring post 122 includes: a support post ( Figure 1 The support column (marked as 122) is mounted on the support block 121 and partially extends into the support portion 110. A spring (not specifically shown in the figure) is sleeved on the support column, abutting against both the support block 121 and the support portion 110. The bottom surface of the support portion 110 has slots for the support column and spring to extend into. The spring columns 122 distributed at the corners of the support block 121 and the support portion 110 enable the positioning and floating of the support portion 110 relative to the support block 121.

[0036] Furthermore, in some embodiments, the support block 121 is also provided with a plurality of positioning posts 126, which extend into the positioning holes 126' of the support portion 110 and are clearance-fitted with the support portion 110. The positioning posts 126 provide a more precise positioning function for the support portion 110, preventing the support portion 110 from shifting due to floating.

[0037] In some embodiments, the support portion 110 is also connected to the support block 121 via a first screw connector 128. In some applications, if the support portion 110 does not need to float, the support portion 110 and the support block 121 can be locked together via the first screw connector 128. Alternatively, the first screw connector 128 can be tightened to the support block 121 via its threaded section and to the support portion 110 via its smooth section with a clearance fit and a certain floating allowance, thereby limiting the floating stroke of the support portion 110 and preventing the support portion 110 from coming off.

[0038] In some embodiments, the probe module 200 includes a probe holder 210 detachably connected to the base 300 and a probe 220 pluggably disposed on the probe holder 210. The probe holder can be fixed to the base 300 via a second screw connector 230 for convenient detachable connection. When maintenance or replacement of the probe 220 is required, the probe holder 210 can be removed, and the probe 220 can be directly plugged in and replaced. After replacement, it can be reinstalled into the probe module 200 via the second screw connector 230, without the need to recalibrate the test tray. Several positioning elements 240 can be provided on the base 300 for positioning the probe holder 210.

[0039] This application also provides an ADAS (Advanced Driving Assistance System) testing device, which is equipped with a test tray as described in any of the above embodiments.

[0040] Cameras are required for ADAS functions such as Autonomous Emergency Braking (AEB), Adaptive Cruise Control (ACC), and Lane Keeping Assist (LKA). The camera assembly and testing production process includes bracket screwing, plasma cleaning, adhesive application, autofocus, and high-temperature curing, as well as a lens-cured image clarity testing station. At each station, processed parts are transferred via test trays. When parts are placed on the test trays, it is crucial to ensure that different parts are in accurate positions for subsequent testing and assembly. This facilitates accurate gripping and placement of parts by the robotic arm, preventing parts from falling or being damaged due to uneven placement.

[0041] Among these, the focusing station and the lens-cured image sharpness testing station require high precision in positioning. At the focusing station, each test tray needs to undergo leveling and focusing position calibration before production. The effectiveness and accuracy of this calibration depend on the positioning module 100 of the test tray accurately positioning the workpiece. At the lens-cured image sharpness testing station, the image sharpness needs to be reconfirmed to ensure that the image state achieved at the focusing station has not been damaged after heat curing. Therefore, it is necessary to ensure a high degree of consistency between the test trays used at the focusing station and the lens-cured image sharpness testing station. This ensures better consistency in the positioning state of the workpiece during testing, resulting in effective and reliable test results from the lens-cured image sharpness testing station.

[0042] The test tray of this application provides a supporting surface 111 via the supporting part 110, on which the feed piece is stably placed. The supporting surface 111 is provided with multiple locating pins, of which one of two differently shaped locating pins (112, 113) serves as the primary locator and the other as the secondary locator. This absorbs tolerances in the hole positions of the feed piece in a specific direction, ensuring positioning accuracy while cleverly resolving the tolerance problem of the hole spacing. Furthermore, the supporting part 110 is mounted on the base 300 via a floating mechanism 120, achieving a floating function to cooperate with the pressure block of the test bench, achieving accurate positioning of the feed piece, and thus ensuring the processing and testing of the feed piece.

[0043] The test tray of this application features a design in which the probe module 200 can be detachably mounted on the base 300, enabling efficient and flexible maintenance and replacement of the probe 220 without disassembling the main body of the tray. This reduces maintenance time and difficulty while maintaining the overall structure of the test tray and ensuring its structural stability. Consequently, the positioning accuracy of the test tray is not affected. After replacing the probe 220, there is no need to recalibrate the tray, ensuring the effectiveness of the test and production efficiency.

[0044] Therefore, configuring the ADAS testing equipment with the aforementioned test tray can at least achieve the following: reduce focusing test time and improve efficiency; reduce scrap caused by poor focusing and image center misalignment; reduce tray maintenance difficulty and time; and improve test stability and calibration reliability. Based on comprehensive mass production data from the ADAS testing production line, the first-pass yield of the ADAS testing equipment configured with the aforementioned test tray can reach over 98.8%, significantly improving production line efficiency.

[0045] Furthermore, the test tray of this application can also be used for other components besides ADAS. Through improvements to the positioning module 100 and the probe module 200, the precise positioning and support of the components can be achieved, thereby improving efficiency and production capacity, and facilitating the maintenance and upgrading of the test tray.

[0046] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A test tray, characterized in that, include: The positioning module includes a support part and a floating mechanism. The support part is mounted on a base via the floating mechanism. The support surface of the support part is provided with a plurality of positioning pins, wherein at least two positioning pins have different shapes. The probe module is detachably mounted on the base.

2. The test tray as described in claim 1, characterized in that, The locating pins of different shapes include round locating pins and rhomboid locating pins, and the short axis of the rhomboid locating pin coincides with the line connecting the center of the round locating pin and the center of the rhomboid locating pin.

3. The test tray as described in claim 2, characterized in that, The circular locating pin and the diamond-shaped locating pin are distributed at a pair of opposite corners on the supporting surface; The plurality of locating pins also includes another pair of auxiliary locating pins distributed diagonally on the supporting surface.

4. The test tray as described in claim 1, characterized in that, The floating mechanism includes a support block and a spring column. The support block is mounted on the base, and the spring column is connected between the support block and the support portion.

5. The test tray as described in claim 4, characterized in that, The spring posts are distributed at each corner of the support block and the supporting portion, wherein each spring post includes: A support column is provided on the support block and partially extends into the support portion; A spring is sleeved on the support column and abuts against the support block and the support portion, respectively.

6. The test tray as described in claim 4, characterized in that, The support block is also provided with a plurality of positioning posts, which extend into the support portion and are fitted with the support portion with a clearance.

7. The test tray as described in claim 4, characterized in that, The supporting part is also connected to the support block via a first screw connector.

8. The test tray as described in claim 1, characterized in that, The probe module includes a probe holder detachably connected to the base and probes pluggably disposed on the probe holder.

9. The test tray as described in claim 8, characterized in that, The probe holder is fixed to the base by a second screw.

10. An ADAS testing device, characterized in that, The ADAS testing device is equipped with a test tray as described in any one of claims 1 to 9.

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