Material carrier suitable for automatic material change and corresponding module automatic testing equipment

Abstract

The present application relates to a material carrier suitable for automatic material change, which includes: a mounting surface, at least one fixture, a light curtain device and a material change mechanism, wherein the fixture includes a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate; the light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the fixture when the cover body is fully opened; the material change mechanism includes a material pickup head, which can perform lateral translation and lifting movements, and in the process of moving the material into the area above the material carrier through the lateral translation and in the process of moving the material out of the area above the material carrier, the material pickup head and the material it has picked up are higher than the light curtain. The present application also provides corresponding module automatic testing equipment. The present application can significantly reduce the failure rate of the equipment, reduce the moving distance and time required for loading and unloading materials, reduce the occupied space, and make the equipment more compact.

Description

[0001] Related applications

[0002] This application claims priority to two patent applications, entitled “Material carrier suitable for automatic material changing and corresponding module automatic testing equipment”, filed on November 1, 2019, with Chinese patent application No. 201911059492.0, and entitled “Status detection, material picking and releasing control device and module detection equipment for openable and closable tooling”, filed on November 21, 2019, with Chinese patent application No. 201911147847.1, and the entire contents of the above three applications are hereby incorporated by reference. Technical Field

[0003] The present application relates to the technical field of camera modules. Specifically, the present application relates to a material carrier suitable for automatic material replacement and corresponding module automatic testing equipment. Background Art

[0004] Camera modules are currently widely used in consumer electronics devices (such as smartphones, tablets, and laptops), becoming an indispensable part of people's lives and possessing broad market prospects. Camera modules are small, sophisticated products, requiring precise machining during their production. In the early days of the industry, the camera module industry primarily relied on the purchase of small quantities of foreign production equipment combined with a large manpower footprint to achieve its growth. Furthermore, with the increasing popularity of smart devices, the camera module industry entered a period of rapid development. During this period, small module manufacturers with immature technology were gradually eliminated, leaving behind a few large-scale module manufacturers with mature technology. These module manufacturers handle a large number of module orders in the domestic market, with production volumes reaching millions or even tens of millions. At this scale, the drawbacks of over-reliance on manual production become increasingly prominent, and the trend towards semi-automated or automated production of mechanical equipment is inevitable.

[0005] Achieving semi-automated or automated production first requires the support of appropriate production equipment, which can be obtained through in-house development or external procurement. Externally purchased equipment can be expensive and, due to production-related reasons (such as the need for confidentiality in some production processes), may not fully meet the purchaser's production needs. In-house developed equipment, on the other hand, can be designed based on production needs, thereby improving production efficiency.

[0006] The present application mainly relates to camera module detection equipment. Camera module detection is an indispensable part of camera module production. Camera module detection equipment (hereinafter referred to as module detection equipment) is also faced with the major issue of how to improve production efficiency. Early module detection equipment usually has a dedicated detection equipment for each test link (i.e., each test). Under the development idea of ​​integration, more and more module detection equipment have integrated multiple test links, and some module detection equipment can even integrate all test links, that is, use a single device to complete all tests. On the other hand, in order to improve production efficiency, some module testing equipment adopts an array detection scheme, that is, a standard plate corresponds to a camera module array composed of multiple camera modules, so that the test link can test multiple camera modules at a time, thereby significantly improving production efficiency. Furthermore, some module testing equipment further integrates the loading and unloading links of the camera module into the module testing equipment, thereby further improving the integration of the equipment.

[0007] Although the prior art has adopted many technologies to improve module detection equipment, generally speaking, the existing module detection equipment still has many shortcomings and needs to be further improved.

[0008] For example, in integrated module testing equipment, various functional modules are densely packed into a compact space. In theory, this should help improve productivity per unit area. However, this design also makes equipment repair and maintenance very inconvenient. When equipment fails, maintenance personnel spend a considerable amount of time restoring the module testing equipment. Therefore, considering the production downtime caused by failures, the overall productivity per unit area of ​​overly integrated module testing equipment may not be optimal.

[0009] For example, camera modules are precision optical devices that often require adequate protection during testing to prevent degradation of imaging quality or even failure due to collisions, contamination, or other factors. Therefore, the module mounting platform of the test equipment typically covers the camera module. However, in automated production scenarios, the cover and its removable mechanism may require additional space, negatively impacting the miniaturization of the device.

[0010] For example, compactly arranging the camera module mounting platform and the loading and unloading mechanism in the test equipment may help reduce the module loading and unloading stroke, thereby helping to improve production efficiency. However, the cover used to protect the camera module needs to be opened and closed frequently. If the loading and unloading mechanism is too close to the camera module mounting platform, it may cause a collision during the loading process, causing the equipment to stop production. At the same time, such a collision also brings great inconvenience to maintenance work. How to balance the above factors and design equipment that can reduce the failure rate while having the advantages of miniaturization and high production efficiency is a major problem in this field.

[0011] Furthermore, for other materials similar to camera modules (such as structured light projection modules and fingerprint modules in mobile phones), the above-mentioned difficulties may also be encountered when the automated equipment in their detection or production links faces a series of problems such as equipment miniaturization and improving production efficiency.

[0012] In summary, there is an urgent need for a solution to module detection equipment (or other automated detection or production equipment for materials similar to camera modules) that can overcome the above-mentioned defects. Summary of the Invention

[0013] One purpose of the present application is to overcome the deficiencies of the prior art and provide a solution for a material carrier suitable for automatic material change that helps miniaturize the equipment.

[0014] Another object of this application is to overcome the deficiencies of the prior art and provide a solution for miniaturized camera module automatic testing equipment.

[0015] In order to solve the above technical problems, the present application provides a material carrier suitable for automatic material changing, which includes: a mounting surface; at least one fixture, the fixture including a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate; a light curtain device, which is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the fixture when the cover body is fully opened; and a material changing mechanism, which includes a material picking head, the material picking head can perform lateral translation and lifting movement, wherein the lateral translation is a movement with a moving direction parallel to the mounting surface, and the lifting movement is a movement with a moving direction perpendicular to the mounting surface, and, in the process of moving the material into the area above the material carrier by the lateral translation and in the process of moving the material out of the area above the material carrier, the material picking head and the material picked up by it are both higher than the light curtain.

[0016] There are multiple fixtures distributed in an array on the installation surface.

[0017] Wherein, the material is a functional module of an electronic device to be tested.

[0018] Among them, in the time interval after the opening action of each tooling fixture of the material carrier is completed and before the material picking head performs the lifting movement, whether to start the safety measures is determined according to whether the duration of the light curtain being blocked exceeds a threshold. The safety measures include issuing an alarm and / or stopping the operation of the material changing mechanism.

[0019] Wherein, the at least one fixture is arranged in two rows, the fixture has a rotation pivot, and the rotation pivot is located on a side close to the edge of the material carrier.

[0020] The fully opening angle preset by the fixture is within the range of 145°-162°.

[0021] Wherein, the material carrier further includes a cover driving mechanism, which is suitable for driving the cover to rotate around the rotation pivot.

[0022] Among them, the cover driving mechanism includes a cylinder and a crank connecting rod, the crank connecting rod includes a cylinder rod and a driven rod, the cylinder rod is connected to the piston of the cylinder and can reciprocate under the drive of the piston, one end of the driven rod is movably connected to the cylinder rod, and the other end is connected to the cover body.

[0023] The cover body has a root portion close to the rotation pivot and an end portion away from the rotation pivot, the root portion has a protruding structure, and the driven rod is connected to the cover body via the protruding structure.

[0024] The cylinder is located below the material carrier plate, the material carrier plate has an avoidance hole adapted to the protruding structure, and the avoidance hole allows the driven rod to pass through.

[0025] Wherein, for a single fixture, the rotating pivot includes a first segment and a second segment, a gap is provided between the first segment and the second segment, and when the fixture is in an open state, the driven rod can pass through the gap.

[0026] Wherein, the material carrier further includes: a position identification sensor, which is used to identify the position of the cylinder rod, and the material changing mechanism starts or stops the lateral translation of the material picking head according to the identified position information.

[0027] Wherein, the position identification sensor is a magnetic sensor or a photoelectric sensor.

[0028] Wherein, the electronic device functional module is a camera module, the cover body has a through hole adapted to the periphery of the lens of the camera module, and the cover body covers the part other than the lens of the camera module after closing.

[0029] Among them, the material changing mechanism also includes: a support table; and a guide rail, one part of which is installed on the support table, and the other part extends to the outside of the support table and is arranged above the material carrier; wherein, the material picking head is installed on the guide rail and can be laterally translated along the guide rail.

[0030] Wherein, each of the fixtures has two material loading positions.

[0031] Among them, a contact array is provided in the carrier board, and the contact array is adapted to the connector of the camera module mounted in the fixture. After closing the cover, the cover body presses the camera module under the action of the driving mechanism, so that the connector is in close contact with the contact array.

[0032] According to another aspect of the present application, there is also provided a module automatic detection device, which includes: a plurality of detection modules, each of the detection modules includes a material carrier, the material carrier includes a mounting surface, and at least one fixture, the fixture includes a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate; a turntable, the plurality of detection modules are mounted on the peripheral area of ​​the turntable; a plurality of target plate modules, which are suitable for providing a test light source and a target object for the electronic equipment functional module carried as a material in the fixture; and a material changing mechanism, which includes a material suitable for A material intake head for moving materials, the material changing mechanism and the multiple mark modules form at least one material changing station and multiple testing stations around the turntable, and the turntable can drive the detection module to rotate relative to the mark module and the material changing mechanism; wherein a light curtain device is provided at the material changing station, which is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the tooling fixture when the cover is fully opened; and, during the lateral translation of the material intake head, the material intake head and the material it intakes are always higher than the light curtain.

[0033] The automatic detection equipment has a base, the turntable is rotatably mounted on the base, the light curtain device is fixed to the base or fixed to the base through an intermediary; or the light curtain device is fixed to a reference surface through an intermediary.

[0034] Among them, the detection module can be flipped 90° so that it can switch between horizontal and vertical postures. When the detection module is in the horizontal posture, the material changing mechanism can change the material of the detection module. When the detection module is in the vertical posture, the detection module can complete the test items together with the standard module.

[0035] Among them, the automatic detection equipment also includes a control device, which is used to control the rotation of the turntable to move the multiple detection modules to the material changing station and each test station in turn; and for any one of the detection modules, when the detection module moves to the material changing station, the detection module is flipped to a horizontal posture, and then all the tooling fixtures of the detection module are controlled to open the cover, the material changing mechanism is controlled to complete the material changing of the detection module, and all the tooling fixtures of the detection module are controlled to close the cover, and then the detection module is flipped to a vertical posture, and finally the turntable is controlled to rotate to move the detection module to each test station in turn for various tests.

[0036] Compared with the prior art, this application has at least one of the following technical effects:

[0037] 1. The material carrier of the present application can significantly reduce the failure rate of the equipment by setting a safety light curtain.

[0038] 2. The material carrier of the present application can reduce the failure rate of the equipment while reducing the moving distance and time required for loading and unloading materials, thereby ensuring higher production efficiency.

[0039] 3. The material carrier structure of the present application is compact, which helps to reduce the space it occupies.

[0040] 4. The material carrier of this application is suitable for efficient detection of large quantities of camera modules.

[0041] 5. The camera module inspection equipment of this application has a compact structure and occupies a small area, which helps to improve the output per unit area of ​​the equipment. Camera modules generally need to be produced in a highly clean environment, so the factory costs (such as the cost of equipment to provide a clean environment) are often higher than those of general products. Therefore, improving the output per unit area of ​​the equipment is very helpful in reducing the production cost of camera modules.

[0042] 6. The camera module detection equipment of the present application has high integration and high production efficiency.

[0043] 7. The camera module detection equipment of the present application has the advantage of low failure rate.

[0044] 8. The camera group detection equipment of the present application can perform synchronous detection of multiple camera modules at a time (at least 16 modules can be detected simultaneously), meeting the needs of large-scale production.

[0045] 9. The module detection equipment of the present application can realize automatic loading and unloading and automatic detection, and will promptly alarm when a fault occurs, thereby greatly realizing the intelligent detection of the module and reducing the dependence on the operator.

[0046] 10. In some embodiments of the present application, the inherent structure of the cylinder itself can be utilized by arranging a photoelectric switch circuit board and a baffle plate cooperating with it on the outside to accurately judge the position (opening angle) of the high-speed opening and closing fixture cover, thereby precisely controlling the loading and unloading actions of the suction nozzle of the loading and unloading mechanism, thereby achieving efficient detection of the camera module.

[0047] 11. In some embodiments of the present application, there is no need to change the structure and operation mode of the cylinder itself, and since it is installed outside the cylinder, it can effectively avoid the problems of arranging wires, ensuring airtightness, and insufficient space caused by installing sensors inside the cylinder, which facilitates installation, maintenance and replacement, and is low-cost and occupies a small volume.

[0048] 12. In some embodiments of the present application, compared with ordinary position sensors, photoelectric switches have higher accuracy and reliability, faster response speed, and stronger anti-interference ability.

[0049] 13 In some embodiments of the present application, the working principle of the crank rocker is utilized to control the gas flow entering the cylinder to realize the opening and closing of the clamp cover, and the opening and closing state signal is used to control the movement of the material picking mechanism, thereby facilitating the collaboration between multiple mechanisms and simplifying the control program.

[0050] 14. In some embodiments of the present application, the baffle can be directly installed on the support rod fixed to the piston rod, and the installation position of the baffle on the support rod can be adjusted, which can conveniently and effectively improve the position recognition accuracy and facilitate equipment debugging.

[0051] 15. In some embodiments of the present application, this detection device, in conjunction with an automatic loading and unloading system and a performance detection module, can realize automated detection of modules.

[0052] 16. In some embodiments of the present application, the driving device for controlling the opening and closing of the clamp cover is mainly a cylinder. By adjusting the driving force of the cylinder, the opening and closing force of the clamp cover can be uniform without damaging the clamp and the module.

[0053] 17. In some embodiments of the present application, the status signal of opening and closing the lid can be obtained based on the photoelectric switch element, which has higher accuracy and reliability, faster response speed, and stronger anti-interference ability, and can meet the requirements of accurately judging the moment when the object reaches the position to be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic top view of an integrated camera module automatic testing device according to an embodiment of the present application is shown;

[0055] Figure 2 A three-dimensional structural diagram of a rotary testing mechanism in one embodiment of the present application is shown;

[0056] Figure 3 A three-dimensional schematic diagram showing the positional relationship between the detection module and the light curtain device in one embodiment of the present application;

[0057] Figure 4 A schematic top view showing the positional relationship between the detection module and the light curtain device in one embodiment of the present application;

[0058] Figure 5 A schematic diagram showing a safety protection principle based on a light curtain device in one embodiment of the present application is shown;

[0059] Figure 6 A schematic perspective view of a single fixture and its driving mechanism in a closed state at a first angle in one embodiment of the present application is shown;

[0060] Figure 7 A perspective schematic diagram of a single fixture and its driving mechanism in a closed state, viewed from a second angle, in one embodiment of the present application is shown;

[0061] Figure 8 A schematic perspective view of a single fixture and its driving mechanism in an open state at a first angle in one embodiment of the present application is shown;

[0062] Figure 9 A perspective schematic diagram of a single fixture and its driving mechanism in an embodiment of the present application in an open state from a second angle is shown;

[0063] Figure 10 A three-dimensional schematic diagram of an openable and closable tool and its driving device according to an embodiment of the present application is shown;

[0064] Figure 11 A schematic diagram of an openable and closable tool and its driving device in an embodiment of the present application when the tool is in an open state is shown;

[0065] Figure 12 A schematic diagram of an openable and closable tooling and its driving device in an embodiment of the present application when the tooling is in a closed state is shown;

[0066] Figure 13 A schematic diagram of an openable and closable tooling and a drive device thereof provided with a baffle and a photoelectric switch circuit board in one embodiment of the present application is shown; the double-headed arrow in the figure represents the movement direction of the piston;

[0067] Figure 14 A schematic diagram showing the positional relationship between the baffle and the photoelectric switch element in one embodiment of the present application is shown;

[0068] Figure 15 A circuit diagram of a photoelectric switch element in one embodiment of the present application is shown;

[0069] Figure 16 A schematic diagram showing the positional relationship between the material dispensing mechanism, the opening and closing fixture, and its driving device in an incompletely opened lid state in one embodiment of the present application is shown; the double-headed arrow in the figure represents the movement direction of the piston;

[0070] Figure 17 A schematic top view of a module detection device in one embodiment of the present application is shown. DETAILED DESCRIPTION

[0071] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0072] It should be noted that in this specification, the expressions of first, second, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of this application, the first subject discussed below can also be referred to as the second subject.

[0073] In the accompanying drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The accompanying drawings are only examples and are not drawn strictly to scale.

[0074] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, integers, steps, operations, elements, and / or parts, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." And, the term "exemplary" is intended to refer to an example or illustration.

[0075] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, not degree, and are intended to account for the inherent variations in measurements or calculations that would be recognized by those having ordinary skill in the art.

[0076] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0077] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0078] Figure 1 FIG2 shows a schematic top view of an integrated camera module automatic testing device according to an embodiment of the present application. Figure 1 In this embodiment, the automatic testing equipment 1000 includes a rotary testing mechanism 100 and a plurality of (for example, three) target plate modules 200 surrounding the rotary testing mechanism and a material changing mechanism 300 (also referred to as a loading and unloading mechanism). The rotary testing mechanism can be provided with four stations, three of which are testing stations and one is a loading and unloading station, i.e., a material changing station. Each target plate module 200 can correspond to a testing station. Each testing station can complete at least one module test item. The material changing mechanism 300 corresponds to a material changing station. In this embodiment, during the rotation process, each test module 110 can reach each station in turn to combine with each target plate module 200 arranged around the rotary testing mechanism to complete various tests. The target plate module 200 can have an independent base frame and shell (mainly suitable for larger target plate modules used for medium-distance and long-distance testing), or it can be directly installed on the base frame 150 of the rotary testing mechanism 100 (refer to Figure 2 ) and shares the same housing with the rotary test mechanism 100 (mainly suitable for smaller target modules used for close-range testing). Figure 2 FIG1 shows a three-dimensional structural diagram of a rotary test mechanism in one embodiment of the present application. Figure 2 In this embodiment, the rotary testing mechanism 100 includes a turntable 120, a plurality of brackets 130, and a plurality of detection modules 110. The plurality of brackets 130 are arranged at the peripheral area of ​​the turntable 120, and each bracket 130 is equipped with a detection module 110. The front of each detection module 110 is vertical and outward in the detection state (see Figure 2 The detection module 110b is located at the lower right in the middle), that is, the front of the detection module 110 faces the target module ( Figure 2 In the non-detection state, such as the material replacement state, the front side of the detection module 110 can face upwards (see Figure 2Detection module 110a located on the upper left in FIG). Further, Figure 3 A three-dimensional schematic diagram showing the positional relationship between the detection module and the light curtain device in one embodiment of the present application is shown. Figure 4 FIG2 is a top view schematic diagram showing the positional relationship between the detection module and the light curtain device in one embodiment of the present application. Figure 3 and Figure 4 (These two figures only schematically show the main components), and then refer to Figure 2 In this embodiment, the detection module 110 includes a material carrier 111. Further, Figure 5 A schematic diagram showing the safety protection principle based on a light curtain device in one embodiment of the present application is shown. Figure 5 FIG shows the open state of the fixture 113. Figure 5The material carrier 111 includes a mounting surface 112 and at least one fixture 113. The fixture 113 includes a material carrier plate 114 fixed to the mounting surface 112 and a cover 115 pivotally connected to the material carrier plate 114. The target module 200 is adapted to provide a test light source and target for a camera module loaded as material in the fixture 113. The material exchange mechanism 300 includes a material ingestion head 310 adapted to move the material. The material exchange mechanism 300 and the multiple target modules 200 form at least one material exchange station and multiple test stations around the turntable 120. The turntable can drive the inspection module 110 to rotate relative to the target module 200 and the material exchange mechanism 300. A light curtain device 400 is provided at the material exchange station. The light curtain 410 is adapted to generate a light curtain 410 parallel to the mounting surface and positioned higher than the fixture 113 when the cover 115 is fully opened. Furthermore, during the lateral translation of the material pickup head 310 (lateral translation here refers to the process of moving the material into the area above the material carrier and the process of moving the material out of the area above the material carrier), the material pickup head 310 and the material it has picked up are always above the light curtain. After the opening action of each of the fixtures of the material carrier is completed, before the material pickup head performs the lifting movement, it can be determined whether to initiate safety measures based on whether the duration of the continuous obstruction of the light curtain exceeds a threshold. The safety measures may include the light curtain device issuing an alarm and / or stopping the operation of the material changing mechanism. In actual work, the light curtain device can always be in the on state during the entire detection process, and the control program is used to determine whether the current time is after the opening action of each fixture is completed and before the material pickup head performs the lifting movement. If it is determined to be so, the signal of the light curtain device is read. If the light curtain is continuously blocked, it can be considered that some components of the material carrier may be abnormal (for example, the cover 115 of the fixture 113 may be in an abnormal state of incomplete opening). At this time, the light curtain device can sound an alarm and / or stop the operation of the material changing mechanism to avoid the material changing mechanism or the material picked up by the material changing mechanism from colliding with the material carrier. The material carrier of the present application has the characteristics of small size, high reliability, and high material changing efficiency, and is particularly suitable for highly integrated automatic testing equipment. Specifically, in this embodiment, by setting a safety light curtain, the guide rail height of the material changing mechanism can be lowered to a position closer to the material carrier while ensuring no collision, thereby reducing the stroke required for loading and unloading materials and ensuring higher production efficiency.

[0079] Furthermore, in one embodiment of the present application, the material pickup head 310 can perform lateral translation and lifting motion, wherein the lateral translation is a motion in which the movement direction is parallel to the mounting surface, and the lifting motion is a motion in which the movement direction is perpendicular to the mounting surface. In the xyz three-dimensional rectangular coordinate system, lateral translation can be movement in the x-axis and y-axis directions, and lifting motion can be movement in the z-axis direction. In some embodiments, lateral translation can also include rotation on the xy plane (i.e., rotation with the z-axis as the axis of rotation) to better achieve alignment between the camera module and the material carrier. The material pickup head 310 can be a suction nozzle with adsorption capacity for sucking materials, or it can be a fixture that can clamp materials. It should be noted that the fixture here generally refers to a fixture composed of two clamping arms that can clamp materials from both sides in order to move materials. It is two different concepts from the tooling fixture in this article.

[0080] Further, still refer to Figure 1 In one embodiment of the present application, the material exchange mechanism 300 may include a support platform 320, a guide rail 330, and a material intake head 310. A portion of the guide rail 330 is mounted on the support platform 320, while another portion extends outside the support platform 320 and is positioned above the material carrier 110. The material intake head 310 is mounted on the guide rail 330 and can translate laterally along the guide rail 330 (note that the "lateral" here refers to the direction of movement parallel to the mounting surface of the material carrier 110). The guide rail 330 mounted on the support platform 320 may be a y-axis guide rail, and the material intake head 310 may be slidably connected to the y-axis guide rail via a slider. The slider may further be provided with an x-axis guide rail to enable the material intake head 310 to translate laterally in another degree of freedom. The material intake head can also achieve lifting motion, i.e., z-axis motion, via a lifting cylinder. During loading, the material intake head 310 can pick up material from the material tray area 340, then move along the guide rail 330 to above the material carrier 111, and then discharge the material. When unloading, the material picking head 310 can pick up the material from the material carrier of the detection module 110, and then move along the guide rail 330 to the top of the material tray area 340, and then unload the material. In actual work, the material picking head 310 can first perform the unloading process and then the loading process, so as to smoothly complete the material change of a single material carrier 111. The material tray area 340 can be arranged with one or more material trays. When multiple material trays are arranged, material trays carrying untested modules and material trays carrying tested modules can be set separately. Furthermore, the material trays carrying tested modules can be further divided into material trays carrying good products and material trays carrying defective products.

[0081] Further, still refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5In one embodiment of the present application, each material carrier 111 may have a plurality of fixtures 113, which may be distributed in an array on the mounting surface 112. In this way, each material carrier 111 may carry multiple camera modules for simultaneous testing, thereby significantly improving production efficiency.

[0082] Furthermore, in conjunction with reference Figure 2 、 Figure 3 、 Figure 4 and Figure 5 In one embodiment of the present application, for the material carrier 111, a plurality of fixtures 113 can be arranged in two rows, and the fixtures 113 can have a rotation pivot, and the rotation pivot is located on the side close to the edge of the material carrier. That is, the covers 115 of the two rows of fixtures 113 are both open to the outside. This design can reduce the space occupied by the material carrier 111 (in the closed state), which is conducive to the miniaturization of the equipment. It should be noted that Figure 4 In the figure, the upper row of fixtures 113 are in a closed state, and the lower row of fixtures 113 are in an open state.

[0083] Furthermore, in one embodiment of the present application, the automatic detection equipment includes a base frame, the turntable 120 is rotatably mounted on the base frame, and the light curtain device 400 is fixed to the base frame or secured to the base frame via an intermediary (e.g., a support column). In other embodiments, the light curtain device may also be secured to a reference surface via an intermediary. The reference surface may be, for example, the ground or a horizontal work surface with an adaptive balancing mechanism.

[0084] Furthermore, Figure 5 Schematic diagram showing the safety protection principle based on the light curtain device in one embodiment of the present application. Figure 5 , after the fixture 113 has opened the cover (referring to after the cover is completely opened), the cover body 115 and the material carrier 114 have an angle, which can be called the cover opening angle (the material carrier 114 is supported by the mounting surface 112, so the cover opening angle can also be understood as the angle between the cover body 115 and the mounting surface 112. When the detection module is in a horizontal position, the mounting surface is also in a horizontal position. At this time, the cover opening angle can also be understood as the angle between the cover body 115 and the horizontal plane). The design value of this cover opening angle can be 160°. In this embodiment, when the material ingestion head ( Figure 5During the lateral translation of the cover body (not shown in the figure), the camera module captured by the material pickup head is 5mm away from the light curtain (note that the present application is not limited to this). This height can be achieved by correspondingly setting the guide rails and material pickup head of the material changing mechanism. It should be noted that in fact the light curtain has a certain thickness (for example, 1mm), and 5mm from the light curtain here refers to 5mm from the upper surface of the light curtain (i.e., the upper limit position). In this embodiment, when the cover body is fully opened, the highest point of the fixture is 10mm away from the light curtain (note that the present application is not limited to this). 10mm from the light curtain here refers to 10mm from the lower surface of the light curtain (i.e., the lower limit position). The highest point can be, for example, the highest point of the cover body when the fixture is opened to the maximum angle (i.e., in the fully open state), and the highest point can also be located at other structures of the fixture. As mentioned above, after the opening action of each of the fixtures of the material carrier is completed and before the material picking head performs the lifting movement, the safety measures are determined based on whether the duration of the continuous obstruction of the light curtain exceeds a threshold value. The safety measures may include the light curtain device issuing an alarm and / or stopping the operation of the material changing mechanism. In actual operation, the light curtain device can be always in the on state during the entire detection process. The control program determines whether the current time is after the opening action of each fixture is completed and before the material picking head performs the lifting movement. If it is determined to be so, the signal of the light curtain device is read. If the light curtain is continuously blocked, it can be considered that some components of the material carrier may have an abnormality (for example, the cover of the fixture is not completely opened). At this time, the light curtain device can issue an alarm and / or stop the operation of the material changing mechanism to avoid the material changing mechanism or the material picked up by the material changing mechanism from colliding with the material carrier. Figure 5 This figure shows a failure caused by incomplete opening of the cover. Figure 5After the fixture has completed its lid opening action, the lid opening angle of the fixture on the right is only 144°, which does not reach the designed value of 160°. At this time, the lid blocks the light curtain 410, causing the light curtain to emit a signal. When this signal persists, it can be determined that an abnormality has occurred in the fixture (for example, the fixture lid is not fully opened). In this embodiment, the lid opening and closing actions of the fixture 113 need to be driven by a drive mechanism. Due to various factors such as tolerances, there is always a risk of incomplete lid opening (for example, insufficient power in the drive mechanism may result in incomplete lid opening). If no precautions are taken, the material exchange mechanism or the material may collide with the lid. Such a collision may cause damage to the equipment or seriously affect the accuracy of the equipment. After installing the light curtain device of this embodiment, the above-mentioned collision problem can be effectively avoided. It should be noted that due to various factors such as external disturbances, the material carrier and the material exchange mechanism may be misaligned (this misalignment is often difficult to detect with the naked eye), and the misalignment may cause the material exchange mechanism or the material to collide with the lid. Installing the light curtain device of this embodiment can also effectively avoid such collisions. It should be noted that in the present application, the preset opening angle (the opening angle of the fully opened lid) is not limited to 160°. In other embodiments, the opening angle can be set at 145°-162°.

[0085] Furthermore, the material carrier also includes a cover driving mechanism, which is suitable for driving the cover to rotate around the rotation pivot. Figure 6 A three-dimensional schematic diagram of a single fixture and its driving mechanism in a closed state at a first angle in one embodiment of the present application is shown. Figure 7 A three-dimensional schematic diagram of a single fixture and its driving mechanism in a closed state in an embodiment of the present application is shown at a second angle. Figure 8 A three-dimensional schematic diagram of a single fixture and its driving mechanism in an embodiment of the present application in an open state at a first angle is shown. Figure 9 The figure shows a perspective diagram of a single fixture and its driving mechanism in an embodiment of the present application in a second angle in an open state. Figure 6-Figure 9In this embodiment, the cover driving mechanism may include a cylinder 118 and a crank connecting rod 119. The crank connecting rod 119 includes a cylinder rod 119a and a driven rod 119b. The cylinder rod 119a is connected to the piston of the cylinder 118 and can reciprocate under the drive of the piston. Specifically, the piston can have a piston rod 119c, and the piston rod 119c can be fixed to the bottom of the cylinder rod 119a. In this way, under the drive of the piston, the cylinder rod 119a can reciprocate (for example, linear reciprocating motion) relative to the cylinder body of the cylinder 118, that is, the cylinder rod 119a can be raised and lowered relative to the cylinder body of the cylinder 118. One end of the driven rod 119b is movably connected to the cylinder rod 119a, and the other end is connected to the cover. In this embodiment, the cover has a root portion close to the rotating pivot 117 and an end portion away from the rotating pivot 117. The root portion has a protruding structure 115a, and the driven rod 119b is connected to the cover 115 via the protruding structure 115a. For a single fixture, the rotating pivot 117 can be divided into two sections (i.e., the rotating pivot 117 can include a first section 117a and a second section 117b, see Figure 7 ), there may be a gap 117c between the two segments (the first segment 117a and the second segment 117b) to form an escape zone, which allows the driven rod 119b to pass through (reference Figure 8 The cylinder 118 can be located below the material carrier 114. The material carrier 114 has an escape hole 114a (or escape groove) adapted to the protrusion 115a. The escape hole 114a allows the driven rod 119b to pass through. This design can prevent interference between the cover drive mechanism and the material exchange mechanism, improve space utilization, and help reduce the size of the detection module.

[0086] Furthermore, in one embodiment of the present application, the material carrier also includes a position identification sensor, which is used to identify the position of the cylinder rod (that is, to identify the relative position of the cylinder rod with respect to the cylinder body), and the material changing mechanism starts or stops the lateral translation of the material intake head according to the identified position information. In this way, the material changing mechanism avoids the opening process of the fixture according to the identified position information of the cylinder rod. Avoid collisions during the opening process. Through this design, the track of the lateral translation of the intake head of the material changing mechanism can be set at a lower position to improve work efficiency. The position identification sensor is a magnetic sensor or a photoelectric sensor.

[0087] Further, still refer to Figure 6-Figure 9 In one embodiment of the present application, in the material carrier, the cover 115 has a through hole 115b adapted to the periphery of the lens of the camera module, and the cover covers the portion other than the lens of the camera module when closed.

[0088] Further, still refer to Figure 8 In one embodiment of the present application, in the material carrier, each of the fixtures 113 has two camera module mounting positions 113a and 113b. Each of the carrier plates 114 is suitable for carrying two of the camera modules, and each cover plate 115 also has two camera module adapter structures 115c and 115d, so as to fix the two camera modules after closing the cover. Each of the cylinders is suitable for driving the opening and closing of a fixture. Therefore, compared with the solution in which each fixture carries a camera module, this design of the present embodiment can reduce the number of cylinders, which is beneficial to reducing the volume occupied by the drive mechanism, while still maintaining a higher cover opening and closing rate and a lower failure rate.

[0089] Furthermore, in one embodiment of the present application, a contact array can be provided within the material carrier of the fixture. This contact array mates with the connector of the camera module mounted within the fixture. When the cover is closed, the drive mechanism compresses the camera module, ensuring close contact between the connector and the contact array. This design facilitates efficient and reliable electrical connection, thereby reducing the time required to load a single module and improving production efficiency.

[0090] Further, still refer to Figure 2 In one embodiment of the present application, a central storage housing 140 may be provided in the center of the turntable 120. The top of the central storage housing 140 may have a through hole to allow cables to pass through. Cables extending from the back of each detection module 110 (or other locations) may pass through the through hole and be stored in the central storage housing 140.

[0091] Further, still refer to Figure 2In one embodiment of the present application, the detection module 110 can be flipped 90° relative to the bracket 130, so that the detection module can switch between a horizontal posture and a vertical posture. A plurality of the target plate modules are arranged around the turntable, and each target plate module forms a test station of the material carrier, and each material carrier can carry multiple camera modules for testing at the same time. The automatic detection equipment also has a material changing mechanism (i.e., a loading and unloading mechanism), which is suitable for capturing the camera module placed in a horizontal posture (the material tray for loading the camera module can also be placed horizontally), moving it to the detection module in a horizontal posture, and placing it in the tooling fixture of the detection module in a horizontal posture. The design of this embodiment can decompose the loading and unloading actions, and hand over the flipping action to the detection module end, so that the mechanism for loading and unloading does not need to have a flipping function, thereby reducing its complexity. During the transmission process, the material tray and the camera module are usually placed horizontally. After the action is decomposed, the camera module can maintain a horizontal state, and there is no need to take up extra loading and unloading time due to the flipping action, and the flipping action of the detection module can be carried out simultaneously with the movement of the module, so it is beneficial to improve production efficiency. Specifically, when the camera module returns to the loading and unloading position (i.e., the material changing station) after detection, the material carrier can be flipped 90°, so that the loading and unloading of the camera module are all carried out on the horizontal plane. After the loading is completed, the carrier will be flipped 90°, and then the turntable will rotate, driving the material carrier to move to the first detection module to start the detection of the camera module. In other words, during the detection, the material carrier is in a vertical state and faces the target module. In this embodiment, the target module is suitable for providing a light source and a target object for testing (such as a target), and the target object refers to the target object photographed by the module to be tested. On the other hand, the reduced complexity of the loading and unloading mechanisms, particularly the reduced degrees of freedom required for them, reduces the space occupied by their range of motion (for example, a multi-jointed robotic arm capable of flipping typically requires a large active space, but reducing the degree of freedom required for flipping allows for a simpler guide-rail-based mechanism to load and unload). This eliminates the need for large spaces to accommodate the loading and unloading mechanisms, making the equipment more compact and improving productivity per unit area.

[0092] Furthermore, in one embodiment of the present application, the detection module may include a flip cylinder, which can drive the detection module to flip 90 degrees relative to the bracket (the detection module, flip cylinder, etc. will be described in more detail below in conjunction with other embodiments). In this way, the detection module can flip 90 degrees so that it can switch between a horizontal posture and a vertical posture. When the detection module is in a horizontal posture, the material changing mechanism can change the material of the detection module. When the detection module is in a vertical posture, the detection module can complete the corresponding test items together with the target plate module in the corresponding position.

[0093] Further, still refer to Figure 2 and Figure 3 In one embodiment of the present application, the bracket may include two pillars, the detection module is installed between the two pillars, and each pillar is mechanically connected to the detection module by a single fastener. This design can enable the automated detection equipment to achieve the technical effects of easy disassembly and easy maintenance. Specifically, in this embodiment, the detection module is arranged in the peripheral area of ​​the turntable. When a detection module fails, it is only necessary to open the two fasteners and unplug the cable plug on the back (or other position) of the detection module to conveniently remove the fault detection module, and then replace it with a new detection module to quickly restore the operation of the detection equipment. Therefore, the solution of this embodiment reduces the fault interruption time, thereby improving production efficiency. In particular, in the scenario of large-scale mass production (such as mass production of tens of millions), reducing the fault interruption time has very practical significance for improving production efficiency.

[0094] Furthermore, in one embodiment of the present application, in the automatic detection device, each detection module can have AFC detection function, DCC detection function and OTP burning function. Figure 2 , the OTP burning unit 116 can be directly made on the detection module (of course, in another embodiment, the OTP burning unit 116 can also be cancelled). The AFC detection function and the DCC detection function need to be implemented in conjunction with the corresponding target plate module. Each target plate module can be configured to be dedicated to one detection function. Based on the turntable of this embodiment, each detection module can be rotated in turn to the target plate module corresponding to the AFC detection function and the DCC detection function, thereby realizing AFC detection and DCC detection. In addition, since each detection module has the AFC detection function, the DCC detection function and the OTP burning function, the camera module does not need to be repeatedly placed on and removed from the material carrier to complete the entire test process. Figure 1In the embodiment, there are four detection modules, but the present application is not limited to this number. For example, there may be five or six detection modules arranged around the turntable. In another embodiment, each detection module may be responsible for detecting only one performance of the camera module.

[0095] Further, still refer to Figure 2 In one embodiment of the present application, the turntable 120 is set on a horizontal base 151, which has a flat surface. The base 151 can be arranged on a base frame 150 with a stable structure, and the four legs of the base frame 150 can be placed on the ground. The base frame 150 adjusts the horizontal state of the upper surface of the base 151 through the height adjustment devices located at the four legs, so that the flatness of the turntable can be guaranteed under qualified installation conditions. In other words, when the detection module 110 on the turntable 120 rotates with the turntable 120, the height change in the Z-axis (i.e., vertical direction) direction is extremely small (i.e., within the allowable error range). In this embodiment, the turntable 120 has four brackets 130, and the four brackets 130 are respectively arranged at the cutting position of the turntable 120. In particular, in this embodiment, the cutting position of the turntable has four cutting grooves 121, and a support of the bracket 130 is respectively provided on both sides of each cutting groove 121. The bracket 130 can support the detection module 110 at a certain height above the turntable 120. The upper ends of the two pillars of the bracket 130 can have openings. The opening of the pillar on one side of the detection module 110 can be arranged with a rotating bearing, and the opening of the pillar on the other side can be arranged with a flip motor (the flip motor can also be replaced by a flip cylinder, which will not be described in detail below). The flip motor is connected to the detection module 110, driving the detection module 110 to rotate around the rotating bearing so that the material carrier 111 can be at different angles. Furthermore, the flip range can be set to 0-90 degrees through a limiting structure, so that the horizontal state and the vertical state are two stable states for loading and unloading and various tests. Among them, loading and unloading can be carried out in the horizontal state, and various tests can be carried out in the vertical state. It should be noted that in this embodiment, the flip motor is a driving mechanism for driving the detection module 110 to rotate as a whole (rotate from a horizontal posture to a vertical posture or from a vertical posture to a horizontal posture), and is not a driving mechanism for driving the fixture to open and close the cover.

[0096] Furthermore, in one embodiment of the present application, the automatic detection equipment also includes a control device, which is used to control the rotation of the turntable to move the multiple test modules to the material change station and each test station in turn; and for any one of the test modules, when the test module is moved to the material change station, the test module is flipped to a horizontal posture, and then all the tooling fixtures of the test module are controlled to open the cover, the material change mechanism is controlled to complete the material change of the test module, and all the tooling fixtures of the test module are controlled to close the cover, and then the test module is flipped to a vertical posture, and finally the turntable is controlled to rotate to move the test module to each test station in turn for various tests.

[0097] It should be noted that the material carrier of this application is not limited to integrated testing equipment with rotary configurations. For example, it can also be used in integrated testing equipment with linear inspection stations, or in single-item testing equipment dedicated to a single inspection step. By utilizing a safety light curtain, this material carrier can achieve automated material changes with minimal downtime and high efficiency.

[0098] For example, in one embodiment of the present application, a material carrier suitable for automatic material change is provided, which includes: a mounting surface, at least one fixture, a light curtain device and a material change mechanism. The fixture includes a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate. The light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the fixture when the cover body is fully opened. The material change mechanism includes a material intake head suitable for moving materials, wherein during the lateral translation of the material intake head, the material intake head and the material it has taken up are always higher than the light curtain. The material carrier of this embodiment can achieve automatic material change with low failure rate and high efficiency, and also has the advantage of occupying a small volume, which is conducive to the miniaturization of the equipment. The material carrier suitable for automatic material change of this embodiment can be applied to integrated detection equipment with each detection station arranged in a linear shape, or single detection equipment dedicated to a single detection link.

[0099] The material carrier of the present application can also be applied to other automated detection or production equipment of materials similar to camera modules, so as to realize automatic material replacement with low failure rate and high efficiency, and realize miniaturization of equipment. For example, the material can be other electronic equipment function modules to be detected. The electronic equipment here can be various types of consumer electronic terminal devices, such as smart phones, tablet computers, laptops, etc. The electronic equipment function module refers to a module that can be built into an electronic device to complete a specific function of the electronic device. For example, a camera module, a structured light projection module, a TOF projection module (where TOF is called Time of Flight), a fingerprint recognition module, etc. These modules are usually small in size and are not convenient for transporting one by one in the production line. They are usually loaded in batches using a tray (or product box), and then transported in the production line as a whole tray. In addition, these modules usually need to have a connector, which usually has a denser contact array to electrically connect to the mainboard of the electronic device (such as a mobile phone), so that the module can receive power and exchange data (such as output image). Before leaving the factory, such modules usually need to be powered on and tested to test product performance and eliminate defective products. The material carrier of the present application is suitable for use in the detection equipment of the functional modules of the above-mentioned electronic equipment to achieve automatic material replacement with low failure rate and high efficiency, while realizing the miniaturization of the equipment (referring to the detection equipment).

[0100] In the above embodiment, the fixture of the material carrier is an openable and closable fixture. During use, it is necessary to first open the fixture, put the electronic equipment functional module to be tested in, and then close the fixture for subsequent testing. During the high-speed operation of automatic test equipment (such as integrated camera module automatic test equipment), it is often necessary to detect the open or closed state of the fixture and feed back the state information to the control center to avoid collisions between different mechanisms or different modules in the equipment and cause equipment failure. Specifically, if the fixture cover of the detection module is not opened or fully opened in time, the automatic loading and unloading mechanism will perform loading and unloading actions, which will cause the suction nozzle of the loading and unloading mechanism to collide with the fixture cover, causing equipment failure, thereby affecting the detection efficiency of the camera module; since the opening and closing rate of the fixture cover is extremely high, it is necessary to make timely and accurate judgments on the position of the cover during the automatic opening and closing action. Therefore, it is necessary to develop a device that can accurately determine the position of the cover (opening angle) during the high-speed automatic opening and closing operation of the tooling, and send the position information to the control system in a timely and accurate manner for effective control, so as to cooperate with the automatic loading and unloading mechanism and the automatic detection device to effectively improve the detection efficiency of the mobile phone module.

[0101] The following describes a state detection device for an openable and closable fixture, using a series of embodiments. This device can be used in conjunction with the aforementioned material carrier suitable for automatic material change and corresponding module automatic testing equipment to accurately determine the position (opening angle) of the fixture cover during high-speed opening and closing, thereby precisely controlling the loading and unloading actions of the suction nozzle of the loading and unloading mechanism, achieving efficient testing of the camera module.

[0102] According to one embodiment of the present application, a state detection device for an openable and closable tool is proposed, which is particularly suitable for an openable and closable tool for testing functional modules of electronic equipment (such as a camera module). Figure 10 A schematic perspective view of an openable and closable tooling and its driving device according to an embodiment of the present application is shown. In this embodiment, the tooling can be applied to a camera module detection device, for example. Figure 11 A schematic diagram of an openable and closable tool and its driving device in an embodiment of the present application is shown when the tool is in an open state. Figure 12 A schematic diagram of an openable and closable tooling and its driving device in one embodiment of the present application when the tooling is in a closed state is shown. Figure 13 A schematic diagram of an openable and closable tooling with a baffle and a photoelectric switch circuit board and a driving device thereof in one embodiment of the present application is shown. Figure 14 Schematic diagram showing the positional relationship between the baffle and the photoelectric switch element in one embodiment of the present application. Figures 10 to 14In this embodiment, the tooling 1001 includes a carrier 1100 and a cover 1200, wherein the carrier 1100 has two material carrying positions. In other embodiments, each tooling may also have only one material carrying position, or three or more material carrying positions. In this embodiment, the material may be a camera module. For traditional tooling for carrying camera modules, manual opening and closing of the cover is usually adopted for loading and unloading. In this embodiment, the automatic opening and closing of the tooling is realized based on the opening and closing drive device. The status detection device provided in this embodiment is mainly used to detect the opening and closing state of the tooling, and timely output a status signal representing the opening and closing state of the tooling, so that the tooling can cooperate with other mechanisms (such as loading and unloading mechanisms or other material picking and releasing mechanisms) during the high-speed opening and closing process to complete the loading and unloading work automatically and efficiently. Specifically, the status detection device of this embodiment may include: an opening and closing drive device 2000, a baffle 3000 and a photoelectric switch circuit board 4000. In which, the opening and closing drive device 2000 may include a moving part and a stationary part, wherein the moving part is connected to the cover body 1200 and is used to drive the cover body to open and close. The stationary part of the opening and closing drive device and the carrier of the tooling can both be fixed to the stationary end. The stationary end can be a stationary platform or other forms of stationary parts. The moving part of the opening and closing drive device can reciprocate relative to the stationary part. In this embodiment, by detecting the starting point and end point of the stroke of the moving part used to drive the cover body 1200 (the starting point and end point of the stroke here are the two end points of the linear motion stroke of the moving part), the opening and closing state information of the cover body 1200 is obtained, so the opening and closing drive device 2000 can be regarded as part of the state detection device. Furthermore, the baffle 3000 can be installed on the moving part. Specifically, the baffle 3000 can be installed on a part that is connected to the piston of the opening and closing drive device and can reciprocate linearly with the piston. The photoelectric switch circuit board 4000 may include a circuit board 4100 and a photoelectric switch element 4200. The back of the circuit board 4100 may be mounted on the stationary component, and the photoelectric switch element 4200 may be mounted on the front of the circuit board 4100. The baffle 3000 may move with the moving component to the position of the photoelectric switch element 4200 and block the photoelectric switch element 4200. The circuit board 4100 outputs a status signal when the photoelectric switch element 4200 is blocked. The status signal can be used to indicate whether the cover is opened or closed, thereby accurately detecting the opening and closing status of the tooling (e.g., compared to conventional magnetic position sensors). For example, assuming that the tooling 1001 is in the closed state at the starting point of the moving component's travel, the baffle 3000 may be positioned so that it exactly blocks the photoelectric switch element 4200 when the moving component is at the starting point of its travel.In this way, each time the moving part moves to the starting point of its stroke, the photoelectric switch circuit board 4000 can output a signal indicating that the lid is closed. Similarly, assuming that at the end of the moving part's stroke, the tooling 1001 is at its maximum opening position (i.e., the lid is opened to the set maximum angle), the baffle 3000 can be set in a position such that the baffle 3000 just covers the position of the photoelectric switch element 4200 when the moving part is at the end of its stroke. In this way, each time the moving part moves to the end of its stroke, the photoelectric switch circuit board can output a signal indicating that the lid is closed. The movement of the moving part can be reciprocating, i.e., it moves back and forth between the starting point and the end point of its stroke, thereby continuously repeating the opening and closing actions, and the detection device will also continuously output the opening and closing status signals corresponding to the fixture. The output opening and closing status signals can, for example, cooperate with an automatic loading and unloading mechanism to complete automatic loading and unloading of the mobile phone module, thereby helping to achieve fully automatic detection of the mobile phone module.

[0103] Furthermore, in one embodiment of the present application, the opening and closing drive device 2000 is a cylinder drive device. The stroke start point and stroke end point can be understood as the starting and ending points of the reciprocating motion of the piston in the cylinder. The cylinder may include a cylinder body 2100, a piston 2200, and a transmission mechanism. Gas can be injected and released into and out of the cylinder body 2100, and the injection and release of gas can drive the piston 2200 to reciprocate within the cylinder body 2100. The piston 2200 and the transmission mechanism are both moving parts. The piston 2200 is located inside the cylinder body 2100. The transmission mechanism may include a piston rod 2300 and a crank connecting rod 2400. One end of the piston rod 2300 is connected to the piston 2200, and the other end extends out of the cylinder body 2100. The end extending out of the cylinder body 2100 can be connected to the crank connecting rod 2400 outside the cylinder body. One end of the crank connecting rod 2400 is fixed to the piston rod 2300, and the other end is connected to the cover body 1200. The blocking piece 3000 is mounted on the crank connecting rod 2400. Preferably, the crank connecting rod 2400 includes a pivotally connected support rod 2410 and a driven rod 2420, one end of the support rod 2410 is fixed to the piston rod 2300, and the other end is pivotally connected to the driven rod 2420, one end of the driven rod 2420 is pivotally connected to the support rod 2410, and the other end is connected to the cover body 1200. Specifically, a protruding structure 1210 can be provided at the root of the cover body, and the driven rod 2420 is connected to the protruding structure 1210 (refer to Figure 10). . The baffle 3000 is mounted on the support rod 2410. The back of the circuit board 4100 of the photoelectric switch circuit board 4000 can be mounted on the outer surface of the cylinder body 2100 (or a mounting base is first fixed on the outer surface of the cylinder body, and then the back of the circuit board is supported and fixed on the mounting base. In this case, the mounting base can be regarded as part of the stationary component). In this embodiment, by arranging the photoelectric switch circuit board 4000 and the baffle 3000 that generates light induction with the photoelectric switch outside the cylinder, the inherent structure of the cylinder itself can be directly utilized without changing the structure and operation mode of the cylinder itself. This is very advantageous especially for small cylinders. In this embodiment, the sensor and other components added for status detection (such as baffles) are all installed outside the cylinder. Therefore, this embodiment can effectively avoid many problems caused by installing sensors inside the cylinder (such as how to arrange wires, how to ensure airtightness, and how to reduce space occupation). Therefore, the cylinder itself has a simple structure, is easy to install, maintain and replace, and has low cost and occupies a small volume. On the one hand, the baffle and the photoelectric switch circuit board are generally in the form of thin sheets or plates, suitable for insertion into the gaps between adjacent tooling. Arranging multiple tooling pieces in an array creates a compact material carrier and detection module, thereby reducing the volume occupied. On the other hand, the external placement of the baffle 3000 and the photoelectric switch circuit board 4000 simplifies the structure of the cylinder itself and also helps reduce its size. Generally speaking, electronic equipment modules such as camera modules need to be produced and tested in a highly clean environment, resulting in high factory costs and the desire to maximize output per unit area. Therefore, for module testing equipment, its unit area output rate is an important evaluation metric. This requires that the module testing equipment be as miniaturized as possible. Therefore, the installation space for the material carrier and detection module of module testing equipment (such as mobile phone camera module testing equipment) is very limited. On the other hand, a single module testing equipment sometimes integrates multiple detection modules to simultaneously test multiple different projects. This highly integrated design also requires that the tooling used to carry the modules and its ancillary structures be as small as possible. The design of this embodiment can effectively solve the above problems.

[0104] In the testing of electronic equipment functional modules, especially in the testing of precision optical devices such as camera modules, the test equipment is usually required to provide better protection for the tested module to avoid degradation of module quality or even scrapping due to collision, contamination or other reasons. Therefore, the tooling of the test equipment needs to cover the camera module. In order to achieve the miniaturization of automatic production equipment and improve the testing efficiency, it is necessary to avoid the cover and the mechanism for moving the cover occupying too much space, and to compactly configure the module mounting platform and the material loading and unloading mechanism in the test equipment to reduce the module loading and unloading stroke; moreover, by reducing the distance between the module mounting platform and the material loading and unloading control mechanism (especially reducing the height difference between the material intake head and the module mounting platform), it helps to reduce the space occupied by the slider and the guide rail, and at the same time, it can also improve the placement accuracy of the module on the mounting platform, avoiding problems such as inaccurate placement of the module on the mounting platform due to large displacement distance, resulting in failure of normal electrical connection. Figure 16 The figure shows the positional relationship between the material taking and discharging mechanism, the openable and closable tooling and its driving device in an embodiment of the present invention when the cover is not fully opened. Figure 16 It can be seen that the height difference between the material intake head 310 (or the guide rail 330) and the module carrying platform (i.e., the tooling) is very small. At the preset opening angle, the material intake head and the module it has taken can just pass the highest point of the cover body 1200 when the tooling is fully opened. Since there is a small height difference between the material intake head (or the guide rail) and the module carrying platform, when the material intake head is translated to above the module carrying platform, it only needs to move downward (i.e., descend) a small distance to place the module on the module carrying platform (the carrier of the tooling). The material intake head is usually combined with the guide rail through a slider. If the lifting distance required for the material intake head is large, in order to ensure mechanical stability, its slider and guide rail often need to be improved accordingly, which leads to an increase in the space occupied by the material taking and discharging mechanism. Therefore, by reducing the distance between the module carrying platform and the material taking and discharging control mechanism, it can help to reduce the space occupied by the material taking and discharging mechanism, which is conducive to the miniaturization of the module detection equipment. In this embodiment, based on the cooperation between the blocking piece 3000 and the photoelectric switch circuit board 4000, the opening and closing state of the cover can be accurately detected, thereby avoiding collisions caused by incomplete opening of the cover by the tooling. Figure 16 The cover position 1290 in the incompletely opened state is shown in the figure. It can be seen that if the tooling cover is not completely opened, the material intake head 310 or the material it intakes (such as the module 3300) may collide with the cover (for example, the cover at the cover position 1290).

[0105] Furthermore, in this embodiment, a small cylinder with a simple structure can be configured for each tool as a driving device for driving the cover to open and close, which is conducive to miniaturization of the equipment and improvement of testing efficiency. In addition, since the cover used to protect the camera module needs to be frequently opened and closed during the rapid test, it is necessary to accurately judge the position / state of the cover and accurately cooperate with the material pick-up and discharge control mechanism to avoid the cover and the material pick-up and discharge control mechanism from colliding during the loading and unloading process, thereby causing the equipment to stop production. By setting a photoelectric switch element and a corresponding baffle to block the photoelectric switch element at a specific position (for example, corresponding to the position where the cover is fully opened) through the baffle to form an induction signal, the position (opening angle) or state (open or closed) of the cover can be accurately measured, thereby cooperating with the material pick-up and discharge control mechanism to avoid the material pick-up and discharge control mechanism from colliding with the cover. Since the module test equipment operates at an extremely high speed, for example, the tooling may be completed in a very short time from opening the cover, completing the material taking and placing, to closing the cover, and the distance between the material intake head of the material taking and placing control mechanism and the tooling is very close (the material intake head and the tooling are particularly close, on the one hand to shorten the running distance of the material intake head, and on the other hand to improve the efficiency of automatic loading and unloading of the module), general position sensors are difficult to meet the requirements in terms of accuracy. Taking the magnetic sensor as an example, based on the principle of magnetic field induction, it is possible to generate a magnetic induction signal when the object to be measured is close but has not actually reached the measurement point, resulting in inaccurate measurement results. Compared with other position sensor products on the market, the advantage of the circuit board based on the photoelectric switch element of this embodiment is that it has higher accuracy and reliability, faster response speed, and stronger anti-interference ability, which can meet the requirements of accurately judging the moment when the object reaches the position to be measured.

[0106] Furthermore, in one embodiment of the present application, the photoelectric switch element includes a first photoelectric switch element and a second photoelectric switch element. When the baffle blocks the first photoelectric switch element, the circuit board outputs a status signal indicating that the lid is completely opened. When the baffle blocks the second photoelectric switch element, the circuit board outputs a status signal indicating that the lid is completely closed. Preferably, the baffle includes a first baffle for blocking the first photoelectric switch element and a second baffle for blocking the second photoelectric switch element. By providing two photoelectric switch elements and corresponding two baffles, it is possible to determine when the lid is fully opened and when it is fully closed and to perform corresponding control. For example, when the first baffle blocks the first photoelectric switch element, the first photoelectric switch element sends a sensing signal to the controller, which controls the material pickup head of the material pickup mechanism to move toward the tooling to perform the material pickup and placement operation based on the received sensing signal. When the second baffle blocks the second photoelectric switch element, the second photoelectric switch element sends a sensing signal to the controller, which activates subsequent module testing operations based on the received sensing signal. It should be noted that in the present application, when the status detection device only needs to output a signal indicating that the cover is opened, or only needs to detect a signal indicating that the cover is closed, the status detection device may have only one baffle and one photoelectric switch element. When the status detection device needs to output two signals, namely, a signal indicating that the cover is opened and a signal indicating that the cover is closed, the status detection device may have two baffles and two photoelectric switch elements. If the shape and position of the baffle are reasonably designed, one baffle and two photoelectric switch elements may be used to output the signal indicating that the cover is opened and the signal indicating that the cover is closed. Under this design, the baffle is set at a position that can block the first photoelectric switch element at the starting point of the stroke, and at the end point of the stroke, the baffle can be moved to a position that just blocks the second photoelectric switch element, so that the first photoelectric switch element and the second photoelectric switch element can output the two signals, namely, the signal indicating that the cover is opened and the signal indicating that the cover is closed, in a timely manner. On the other hand, in the present embodiment, the photoelectric switch circuit board may have an LED light, which may serve as a status signal indicator. In this way, if the safety of the equipment operator and the cleanliness of the equipment are taken into consideration, when the openable and closable tooling and its auxiliary mechanical devices are arranged inside the box, the operator can judge the current opening and closing status of the tooling by observing the indicator light.

[0107] Furthermore, in conjunction with reference Figure 11 and Figure 12In one embodiment of the present application, the cover body 1200 of the tooling is pivotally connected to the carrier 1100. By pivotally connecting the cover body 1200 and the carrier 1100 at their respective roots, the cover body can be opened or closed relative to the carrier by a single cylinder, which makes the structure simple and reduces the number of components, thereby improving the output per unit area. Preferably, one end of the driven rod 2420 is pivotally connected to the cover body 1200 at a position close to the root of the cover body (close to the pivotal connection position between the cover body 1200 and the carrier 1100), so that the opening and closing of the cover body can be better controlled without affecting the material picking and unloading operation of the material picking head of the material picking and unloading control mechanism, so that the force of the crank rocker to control the opening and closing of the clamp cover body is relatively uniform, and will not cause excessive force to damage the module in the clamp or insufficient force to cause the cover body to be not closed tightly, thereby affecting the detection of the module.

[0108] Furthermore, in conjunction with reference Figure 11 、 Figure 12 and Figure 13 In one embodiment of the present application, the baffle 3000 has a strip-shaped mounting hole or an elongated mounting hole, through which a fastener passes to secure the baffle 3000 to the support rod 2410, and the mounting position of the baffle 3000 is adjustable within the range of the strip-shaped mounting hole. By providing the strip-shaped mounting hole on the baffle 3000, the mounting position of the baffle 3000 on the support rod 2410 can be adjusted, thereby adjusting the maximum opening angle (which can be understood as a preset opening angle for complete opening, or an optimal opening angle) of the cover body 1200 relative to the carrier 1100 according to specific operations or for individual tooling (or for different types of tooling and material loading and unloading mechanisms). Furthermore, in this embodiment, when it is necessary to adjust various parameters of the tooling, such as the speed of opening and closing the lid, the pressure applied to the module during the closing action, and the maximum opening angle, the airflow to the cylinder can be changed and the mounting position of the baffle can be adjusted accordingly. No further adjustments to the control programs of other mechanisms of the inspection equipment, such as the material handling mechanism, are required. Therefore, this embodiment greatly facilitates the debugging of the tooling to achieve optimal performance.

[0109] Furthermore, in one embodiment of the present application, Figure 11 and Figure 12 As shown, the support rod 2410 includes a base 24110 and a vertical rod 24120 mounted on the base. The bottom end of the piston rod 2300 is fixed to the base 24110, and the baffle 3000 is mounted on the vertical rod 24120. The movement direction of the piston 2200 is parallel to the vertical rod 24120. The vertical rod 24120, the base 24110, and the piston rod 2300 are arranged in a U shape.

[0110] Furthermore, in one embodiment of the present application, Figure 14 As shown, the blocking piece 3000 includes a mounting portion 3100 and a shielding portion 3200. The root of the mounting portion 3100 is supported and fixed on the support rod, the end of the mounting portion 3100 extends laterally to the outside of the support rod 2410, and the shielding portion 3200 is located at the end of the mounting portion 3100. Preferably, the shielding portion 3200 is arranged perpendicular to the mounting portion 3100. Preferably, the photoelectric switch element 4200 includes a transmitting end and a receiving end, and the shielding portion 3200 can move to the gap between the transmitting end and the receiving end along with the moving component, so that the shielding portion 3200 can block the signal transmitted from the transmitting end toward the receiving end, thereby causing the photoelectric switch element 4200 to generate an induction signal and send it to the controller. Reference Figure 10 Preferably, the cover body 1200 has a protruding structure 1210 at the root, and the driven rod 2420 is connected to the cover body 1200 through the protruding structure 1210, wherein the cover body 1200 and the carrier 1100 are pivotally connected through a pivot, and the root is the part of the cover body 1200 close to the pivot.

[0111] Furthermore, in one embodiment of the present application, an LED light is also provided on the photoelectric switch circuit board, and the LED light is lit when the baffle blocks the photoelectric switch element. The LED light can serve as an indicator, and through the display status of the external LED light, on-site personnel can understand whether the cover of the tooling is in a closed state or an open state. The photoelectric switch circuit board is provided with a signal output terminal connected to the controller, which can send the sensing signal sent when the photoelectric switch element is blocked or the signal that the LED light is lit to the controller. Preferably, a first LED light corresponding to the first photoelectric switch element and a second LED light corresponding to the second photoelectric switch element are provided on the photoelectric switch circuit board, and when the baffle blocks the first photoelectric switch element, the first LED light is lit; when the baffle blocks the second photoelectric switch element, the second LED light is lit.

[0112] Furthermore, the circuit diagram of the photoelectric switch element is as follows Figure 15As shown, in one embodiment of the present application, the photoelectric switch element is equivalent to an optocoupler. When the tool cover is open, under normal circumstances, the baffle does not block the photoelectric switch element, pins 3 and 4 of OP1 are in a conductive state, MOS transistor Q1 is in a closed state, the LED light is off, and S1 outputs a high level. When the baffle blocks the photoelectric switch element, pins 3 and 4 of OP1 are closed, MOS transistor Q1 turns on, the LED light is illuminated, and S1 outputs a low level. When the output is low, the tool cover is in a stable state with the cover fully open. When the controller receives the signal sent by the photoelectric switch circuit board, it determines that the cover is now in a fully open state. The controller sends this information to the control device of the material picking and unloading control mechanism, thereby controlling the material picking head of the material picking and unloading control mechanism to perform the material picking and unloading operation. It should be noted that although in this embodiment, a low level represents the cover open state and a high level represents the cover closed state, the present application is not limited to this. In other embodiments, a low level can also represent the cover closed state and a high level represents the cover open state.

[0113] Furthermore, in one embodiment of the present application, the material carrying position is suitable for carrying electronic device functional modules. Electronic device functional modules can be various types of consumer electronic terminal devices, such as smart phones, tablet computers, laptops, etc. Electronic device functional modules refer to modules that can be built into electronic devices to complete a specific function of the electronic device. For example, camera modules, structured light projection modules, TOF projection modules (where TOF stands for Time of Flight), fingerprint recognition modules, etc. These modules are usually small in size and are not convenient for transporting one by one in the production line. They are usually loaded in batches using trays (or product boxes), and then transported in the production line as a whole tray. In addition, these modules usually need to have connectors, and the connectors usually have a denser contact array to facilitate data exchange with the motherboard of the electronic device. Before leaving the factory, such modules usually need to be powered on for factory testing to test product performance and eliminate defective products.

[0114] Furthermore, according to one embodiment of the present application, a material taking and discharging control device for a tooling is also provided, comprising: a state detection device, a material pickup head, and a controller in any of the foregoing embodiments. Among them, the state detection device can refer to the description in the foregoing and will not be repeated here. The material pickup head is a component used to take or discharge materials in the tooling with the lid opened. The controller is used to control the material pickup head to move in or out of the upper area of ​​the tooling and control the material pickup head to load and unload materials according to the state signal used to indicate that the lid is opened or closed. For example, the controller is also used to control the material pickup head to move into the upper area of ​​the tooling after receiving the state signal used to indicate that the lid is opened; and to prevent the material pickup head from moving into the upper area of ​​the tooling after receiving the state signal used to indicate that the lid is closed.

[0115] Furthermore, in one embodiment of the present application, in the state detection device, the opening and closing drive device is a cylinder drive device, and the opening or closing speed of the tooling 1001 is adjusted by adjusting the airflow injected into the cylinder drive device. By setting the amount of gas introduced into the cylinder through the control program, the force and speed of opening and closing of the tooling cover 1200 can be adjusted. In order to achieve the stability of material taking and unloading during the detection process, it is necessary to reasonably set the opening and closing frequency of the tooling cover 1200. If the speed of opening and closing of the cover is set too fast, it is easy to cause damage to the cover; if the frequency of opening and closing of the cover is set too slow, it will affect the efficiency of automatic detection. In order to ensure the detection / testing efficiency of the camera module. Preferably, in the state detection device, the opening and closing drive device is a cylinder drive device, and the maximum opening angle of the tooling is adjusted by adjusting the airflow injected into the cylinder drive device.

[0116] In one embodiment of the present application, a material handling control device for tooling may include the following operating steps:

[0117] Introduce gas into the cylinder chamber below the piston, causing the piston rod and support rod to move upward relative to the cylinder body, thereby driving the driven rod to move and open the cover of the tooling (refer to Figure 11 );

[0118] When the first blocking piece blocks the first photoelectric switch element, the first photoelectric switch element sends a sensing signal to the controller;

[0119] The controller controls according to the received sensing signal, stops the gas supply to the cylinder to stop the movement of the piston rod and the support rod, and sends a material taking and releasing signal to the material taking and releasing control mechanism at the same time;

[0120] The material taking and placing control mechanism moves to the tooling in the fully open state according to the received material taking and placing signal to perform the material taking and placing operation, that is, taking out the tested camera module from the tooling and placing the camera module to be tested into the tooling;

[0121] After the loading and unloading operation is completed, the pick-up and unloading mechanism moves back to the initial position and sends a pick-up and unloading completion signal to the controller;

[0122] The controller controls the release of gas in the cylinder chamber below the piston according to the received signal of material loading and unloading completion, and preferably introduces gas into the cylinder chamber above the piston to improve the operation efficiency, so that the piston rod and the support rod move downward relative to the cylinder body, thereby driving the driven rod to move and close the cover of the tooling (refer to Figure 12 );

[0123] When the second blocking piece blocks the second photoelectric switch element (at this time the tooling is in a fully closed state), the second photoelectric switch element sends a sensing signal to the controller; and

[0124] The controller controls according to the received sensing signal, so that the module to be tested can be subsequently tested in the closed tooling.

[0125] It should be noted that in another embodiment, for the cylinder, the movement of the piston can also be achieved by inflating one end (first end) of the piston and deflating the other end (second end); when the piston needs to move in the opposite direction, the movement of the piston can be achieved by inflating the second end of the piston and deflating the first end.

[0126] Furthermore, according to one embodiment of the present application, a module detection device is also provided, which may include: a material carrier, a detection module and a material loading and unloading mechanism. The material carrier may be one or more, and each material carrier may include at least one openable and closable tooling for carrying a module and a state detection device adapted to the tooling, wherein the module may be an electronic device functional module, and the meaning of the electronic device functional module has been introduced in the foregoing text and will not be repeated here. The state detection device may be the state detection device in any of the foregoing embodiments, and its specific structure may refer to the foregoing description and will not be repeated here. The detection module is used to obtain the data output by the module carried on the material carrier (such as the image data output by the camera module, under each detection item, the camera module to be detected will take the corresponding image), and analyze and judge based on the acquired data (such as image data), or send the acquired data (such as image data) to the control center. The control center judges and processes the detected data according to a pre-set program to obtain the detection results. For the camera module detection equipment, the detection module can be used to implement one or more of the AFC detection function, the DCC detection function and the OTP burning function. The material picking and unloading mechanism can be used to move the module from the material tray to the material platform, or to move the module from the material platform to the material tray, and the material picking and unloading mechanism has a material picking head, and the material picking head is used to pick up or put out materials in the open tooling. In one example, the material picking and unloading mechanism can be the loading and unloading mechanism of the module detection equipment. In this embodiment, the opening and closing drive device of the state detection device adjusts the opening speed of the tooling by changing the driving force. Moreover, when the tooling is in the state of completing the opening of the cover, the material picking and unloading mechanism and the module it has picked up can pass over the cover body, and the material picking and unloading mechanism controls the material picking head to move in or out of the upper area of ​​the tooling according to the state signal used to indicate that the opening or closing of the cover is completed.

[0127] Furthermore, in one embodiment, the module detection device may include multiple material carriers and multiple detection modules adapted thereto, wherein each material carrier and the detection module adapted thereto constitute a detection device. Figure 17 FIG2 shows a schematic top view of a module detection device in one embodiment of the present application. Figure 17In this embodiment, the module detection equipment 1000 may have four detection devices 110, and these four detection devices 110 may be distributed on a turntable 120. Specifically, these four detection devices 110 may be installed in the peripheral area of ​​the turntable 120. A cable storage structure 140 may be provided in the central area of ​​the turntable. Each of the detection devices 110 includes a material carrier, which may include a mounting surface, and at least one of the aforementioned tooling, which includes a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate. The module detection equipment 1000 may also include a plurality of target plate modules 200, which are suitable for providing a test light source and a target object for the electronic device functional module carried as a material in the tooling. The module detection equipment 1000 may also have a material changing mechanism 300, which includes a material picking head 310 and a guide rail 330 suitable for moving materials. The material picking head 310 can move along the guide rail 330 to transport the material from the material tray 340 to the material carrier of the detection device 110, or transport the material from the material carrier of the detection device 110 to the material tray 340. In this embodiment, the material changing mechanism 300 has two material picking heads 310 and two corresponding guide rails 330. The material changing mechanism 300 and the multiple reference plate modules 200 form at least one material changing station and multiple detection stations around the turntable 120, and the turntable 1200 can drive the detection device 110 to rotate relative to the reference plate module 200 and the material changing mechanism 300. The material changing mechanism 300 can be the material picking and unloading mechanism described above. In this embodiment, four detection devices are integrated in a single module detection device, each of which requires a material carrier. In large-scale detection scenarios, each material carrier needs to integrate multiple of the aforementioned tooling to provide multiple (for example, 16) material carrying positions, and each tooling requires a state detection device in order to achieve accurate and efficient control. The state detection device and the material handling control device provided in this application can effectively reduce the occupied volume of each material carrier and the detection device, thereby contributing to the miniaturization of the equipment. In this embodiment, the cover of each tooling of the material carrier needs to be opened to a suitable angle to ensure that the suction nozzle of the material handling mechanism (or other forms of intake heads for intake modules) and the modules it adsorbs do not collide with the cover of the tooling. In this embodiment, four detection devices are arranged around the turntable, and the material changing mechanism and the three mark plate modules form a material changing station (or loading and unloading station) and three detection stations (which can be respectively referred to as the first detection station, the second detection station and the third detection station) around the turntable.Under working condition, the module to be tested is placed in the loading and unloading position, and the module to be tested is placed in the loading position by the guide rail. The suction nozzle sucks the module to the detection position and puts it into the uncapped tooling. The tooling cover is automatically closed again. At this time, the detection platform loaded with the module is flipped 90 degrees (so that the module to be tested is converted from an upward posture to a horizontal posture. Flipping 90 degrees can make the carried module face the standard module, so that the standard module can form a detection light path). Then, the turntable rotates so that the detection device enters the first detection station. At the same time, the detection device located at the third detection station moves to the loading and unloading station together with the turntable. After arriving at the loading and unloading station, the tooling cover of the detection device automatically opens, and the suction nozzle extracts the detected module and puts it into the product box, and puts the module to be tested into the uncapped tooling, and then starts the next round of detection. In this embodiment, the detection equipment can realize the functions of loading and unloading and detection at the same time. It is a highly integrated detection equipment with a small footprint and high detection efficiency, which is suitable for the production and manufacture of large quantities of modules. During this process, the automatic opening and closing of the fixture cover is closely coordinated with the loading and unloading nozzles. When the fixture cover is open, the nozzle performs the loading action. When the fixture cover is closed, the nozzle stops loading and returns to its initial position, waiting for the next round of loading. The coordination between the nozzle and the fixture cover is mainly achieved through the photoelectric switch adapter board. The photoelectric switch will sense the signal and transmit it to the control center through the connecting line. The control center transmits this information to the drive device of the nozzle and then controls the movement of the nozzle. The coordinated action of the fixture cover and the nozzle is achieved without contact and without occupying a large space in the equipment, which improves the intelligence of the equipment and reduces the dependence on manual opening and closing of the cover, helping to improve the efficiency of detection.

[0128] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A material carrier suitable for automatic material change, characterized in that: include: Mounting surface; at least one fixture, the fixture comprising a material carrier fixed to the mounting surface and a cover pivotally connected to the material carrier; a light curtain device, adapted to generate a light curtain parallel to the mounting surface, wherein the light curtain is positioned higher than the fixture when the cover is in a fully opened state; as well as A material changing mechanism, comprising a material picking head, which can perform lateral translation and lifting movements, wherein the lateral translation is a movement in a direction parallel to the mounting surface, and the lifting movement is a movement in a direction perpendicular to the mounting surface, and in the process of moving the material into the area above the material carrier and in the process of moving the material out of the area above the material carrier by the lateral translation, the material picking head and the material picked up by it are both higher than the light curtain, wherein after the opening action of each of the tooling fixtures on the material carrier is completed and before the material picking head performs the lifting movement, whether to start safety measures is determined based on whether the duration of the light curtain being blocked exceeds a threshold, and the safety measures include issuing an alarm and / or stopping the operation of the material changing mechanism, wherein the baffle and photoelectric switch circuit board of the status detection device of the material carrier are both installed outside the cylinder of the status detection device of the material carrier.

2. The material carrier according to claim 1, characterized in that: There are multiple fixtures distributed on the installation surface in an array.

3. The material carrier according to claim 1, characterized in that: The material is a functional module of an electronic device to be tested.

4. The material carrier according to claim 3, characterized in that: Each of the fixtures has at least two material loading positions.

5. The material carrier according to claim 3, characterized in that: The at least one fixture is arranged in two rows, and the fixture has a rotation pivot, and the rotation pivot is located on a side close to the edge of the material carrier.

6. The material carrier according to claim 3, characterized in that: The preset opening angle of the fixture for fully opening the cover is within the range of 145°-162°.

7. The material carrier according to claim 5, characterized in that: The material carrier further comprises a cover driving mechanism, which is adapted to drive the cover to rotate around the rotation pivot.

8. The material carrier according to claim 7, characterized in that: The cover driving mechanism includes a cylinder and a crank connecting rod, the crank connecting rod includes a cylinder rod and a driven rod, the cylinder rod is connected to the piston of the cylinder and can reciprocate under the drive of the piston, one end of the driven rod is movably connected to the cylinder rod, and the other end is connected to the cover body.

9. The material carrier according to claim 8, characterized in that: The cover body has a root portion close to the rotation pivot and an end portion away from the rotation pivot, the root portion has a protruding structure, and the driven rod is connected to the cover body through the protruding structure.

10. The material carrier according to claim 9, characterized in that: The cylinder is located below the material carrier plate. The material carrier plate has an avoidance hole adapted to the protruding structure, and the avoidance hole allows the driven rod to pass through.

11. The material carrier according to claim 8, characterized in that: For a single fixture, the rotation pivot includes a first segment and a second segment, a gap is provided between the first segment and the second segment, and the driven rod can pass through the gap when the fixture is in an open state.

12. The material carrier according to claim 8, characterized in that: The material carrier further includes a position identification sensor for identifying the position of the cylinder rod, and the material changing mechanism starts or stops the lateral translation of the material picking head according to the position information identified by the position identification sensor.

13. The material carrier according to claim 12, characterized in that: The position identification sensor is a magnetic sensor or a photoelectric sensor.

14. The material carrier according to claim 3, characterized in that: The electronic device functional module is a camera module, the cover body has a through hole adapted to the periphery of the lens of the camera module, and the cover body covers the portion other than the lens of the camera module when closed.

15. The material carrier according to claim 3, characterized in that: The material changing mechanism further comprises: support platform; and A guide rail, a portion of which is mounted on the support platform, and another portion of which extends outside the support platform and is disposed above the material carrier; The material intake head is mounted on the guide rail and can be translated laterally along the guide rail.

16. The material carrier according to claim 8, characterized in that: Each of the fixtures has at least two material loading positions.

17. The material carrier according to claim 8, characterized in that: A contact array is provided in the material carrier, and the contact array is adapted to the connector of the electronic device functional module mounted in the fixture. After closing the cover, the cover body presses the electronic device functional module under the action of the driving mechanism, so that the connector is in close contact with the contact array.

18. A module automatic detection device, characterized in that: include: Multiple detection modules, each of which includes a material carrier, the material carrier including a mounting surface, and at least one fixture, the fixture including a material carrier plate fixed to the mounting surface and a cover body pivotally connected to the material carrier plate; A turntable, wherein the plurality of detection modules are installed on a peripheral area of ​​the turntable; A plurality of target modules, which are suitable for providing a test light source and a target object for the electronic equipment functional module as a material carried in the fixture; as well as a material changing mechanism comprising a material ingestion head adapted to move the material, the material changing mechanism and the plurality of target plate modules forming at least one material changing station and a plurality of testing stations around the turntable, and the turntable being capable of driving the detection module to rotate relative to the target plate module and the material changing mechanism; Wherein, a light curtain device is provided at the material changing station, which is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the fixture when the cover is fully opened; Moreover, during the lateral translation of the material picking head, the material picking head and the material picked up by it are always higher than the light curtain, wherein in the time interval after the opening action of each of the fixtures on the material carrier is completed and before the material picking head performs the lifting movement, whether to start the safety measures is determined based on whether the duration of the light curtain being blocked exceeds a threshold value, and the safety measures include issuing an alarm and / or stopping the operation of the material changing mechanism, wherein the baffle and the photoelectric switch circuit board of the status detection device of the material carrier are both installed on the outside of the cylinder of the status detection device of the material carrier.

19. The module automatic detection device according to claim 18, characterized in that: The automatic detection equipment has a base, the turntable is rotatably mounted on the base, the light curtain device is fixed to the base or fixed to the base through an intermediary; or the light curtain device is fixed to a reference surface through an intermediary.

20. The module automatic detection equipment according to claim 18, characterized in that: The detection module can be flipped 90° so that it can switch between a horizontal posture and a vertical posture. When the detection module is in a horizontal posture, the material changing mechanism can change the material of the detection module. When the detection module is in a vertical posture, the detection module is suitable for executing test items.

21. The module automatic detection device according to claim 20, characterized in that: The automatic detection equipment also includes a control device, which is used to control the rotation of the turntable to move the multiple detection modules to the material changing station and each test station in turn; and for any one of the detection modules, when the detection module moves to the material changing station, the detection module is flipped to a horizontal posture, and then all the tooling fixtures of the detection module are controlled to open the cover, the material changing mechanism is controlled to complete the material changing of the detection module, and all the tooling fixtures of the detection module are controlled to close the cover, and then the detection module is flipped to a vertical posture, and finally the turntable is controlled to rotate to move the detection module to each test station in turn for various tests.

22. The module automatic detection device according to any one of claims 18 to 21, characterized in that: The state detection device further includes an opening and closing drive device, which includes a moving part and a stationary part. The moving part is connected to the cover body and is used to drive the cover body to open and close. The baffle is installed on the moving part. The photoelectric switch circuit board includes a circuit board and a photoelectric switch element, wherein the back of the circuit board is installed on the stationary part, and the photoelectric switch element is installed on the front of the circuit board. The baffle can move with the moving part to the position of the photoelectric switch element and block the photoelectric switch element. The circuit board outputs a state signal when the photoelectric switch element is blocked. The state signal is used to indicate that the cover is opened or closed.

23. The module automatic detection equipment according to claim 22, characterized in that: The opening and closing drive device is a cylinder drive device.

24. The module automatic detection device according to claim 22, characterized in that: The stationary component includes a cylinder body, into which fluid can be injected and discharged; the moving component includes a piston and a transmission mechanism, wherein the piston is located inside the cylinder body; the transmission mechanism includes a piston rod, one end of the piston rod is connected to the piston, and the other end extends out of the cylinder body.

25. The module automatic detection device according to claim 24, characterized in that: The transmission mechanism further includes a crank connecting rod located outside the cylinder body, and the crank connecting rod is used to drive the tooling to open and close. One end of the crank connecting rod is fixed to the piston rod, and the other end is connected to the cover body.

26. The module automatic detection device according to claim 25, characterized in that: The blocking piece is mounted on the crank connecting rod.

27. The module automatic detection device according to claim 25, characterized in that: The crank connecting rod includes a support rod and a driven rod, wherein one end of the support rod is fixed to the piston rod and the other end is pivotally connected to the driven rod; one end of the driven rod is pivotally connected to the support rod and the other end is connected to the cover body.

28. The module automatic detection equipment according to claim 27, characterized in that: The blocking piece is mounted on the supporting rod.

29. The module automatic detection device according to claim 22, characterized in that: The photoelectric switch element includes a first photoelectric switch element and a second photoelectric switch element. When the baffle blocks the first photoelectric switch element, the circuit board outputs a status signal indicating that the cover is opened. When the baffle blocks the second photoelectric switch element, the circuit board outputs a status signal indicating that the cover is closed.

30. The module automatic detection equipment according to claim 29, characterized in that: The blocking piece includes a first blocking piece for blocking the first photoelectric switch element and a second blocking piece for blocking the second photoelectric switch element.

31. The module automatic detection equipment according to claim 22, characterized in that: The cover is pivotally connected to the carrier.

32. The module automatic detection device according to claim 27, characterized in that: The blocking piece has a strip-shaped mounting hole, a fastener passes through the strip-shaped mounting hole to fix the blocking piece to the support rod, and the mounting position of the blocking piece is adjustable within the range of the strip-shaped mounting hole.

33. The module automatic detection device according to claim 27, characterized in that: The support rod includes a base and a vertical rod installed on the base, the bottom end of the piston rod is fixed to the base, and the blocking piece is installed on the vertical rod.

34. The module automatic detection device according to claim 33, characterized in that: The movement direction of the piston is parallel to the vertical rod.

35. The module automatic detection equipment according to claim 33, characterized in that: The vertical rod, the base and the piston rod are arranged in a U shape.

36. The module automatic detection device according to claim 35, characterized in that: The baffle includes a mounting portion and a shielding portion, the root of the mounting portion is supported and fixed on the support rod, the end of the mounting portion extends laterally outside the support rod, and the shielding portion is located at the end of the mounting portion; the photoelectric switch element includes a transmitting end and a receiving end, and the shielding portion can move with the moving component to the gap between the transmitting end and the receiving end.

37. The module automatic detection device according to claim 27, characterized in that: The cover body has a protruding structure at the root, and the driven rod is connected to the cover body via the protruding structure. The cover body and the carrier are pivotally connected via a pivot, and the root is the portion of the cover body close to the pivot.

38. The module automatic detection device according to claim 22, characterized in that: An LED light is provided on the photoelectric switch circuit board, and when the blocking piece blocks the photoelectric switch element, the LED light is turned on.

39. The module automatic detection device according to claim 22, characterized in that: The material carrier also includes an automatic material taking and placing control device, which is characterized in that the automatic material taking and placing control device includes: The state detection device; A material taking head, which is used to take or put materials into the open fixture; and The controller is used to control the material taking head to move into or out of the upper area of ​​the fixture according to the status signal used to represent the completion of opening the cover or closing the cover.

40. The module automatic detection device according to claim 39, characterized in that: The controller is also used to control the material intake head to move into the upper area of ​​the fixture after receiving the status signal indicating that the cover is opened; and to prevent the material intake head from moving into the upper area of ​​the fixture after receiving the status signal indicating that the cover is closed.

41. The module automatic detection device according to claim 39, characterized in that: In the state detection device, the opening and closing drive device is a cylinder drive device, and the opening or closing speed of the fixture is adjusted by changing the driving force of the cylinder drive device.

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