WO2021083138A1

WO2021083138A1 - Parts support platform adapted for automatic parts changing, and corresponding automatic module testing apparatus

Info

Publication number: WO2021083138A1
Application number: PCT/CN2020/123950
Authority: WO
Inventors: 李大源; 潘家威; 林志成; 张民奇; 岳浩浩; 周超
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2019-11-01
Filing date: 2020-10-27
Publication date: 2021-05-06
Also published as: CN114788269A

Abstract

The present application relates to a parts support platform adapted for automatic parts changing, and the platform comprises: a mounting surface, at least one work fixture, a light screen device, and a parts changing mechanism. The work fixture comprises a parts support plate fixed to the mounting surface and a cover member pivotally connected to the parts support plate. The light screen device is adapted to generate a light screen in parallel with the mounting surface, and the light screen has a position higher than that of the work fixture when the cover member is in a fully opened state. The parts changing mechanism comprises a parts pick-up head capable of a translation movement and a vertical movement. During a process of moving a part into a region above the parts support platform, and during a process of moving a part out from the region above the parts support platform by means of the translation movement, the parts pick-up head and the part picked up thereby are higher than the light screen. The present application further provides a corresponding automatic module testing apparatus. The present application significantly reduces the apparatus failure rate, reduces the distance and time required for loading and unloading parts, decreases an occupation space, and achieves apparatus compactness.

Description

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

Related application

This application requires the name "Material carrier suitable for automatic refueling and corresponding automatic test equipment for modules". The Chinese patent application number submitted on November 1, 2019 is 201911059492.0, and the name is "The state of the tooling that can be opened and closed. Detection, picking and unloading control device and module testing equipment", the two priority rights of the Chinese patent application number 201911147847.1 filed on November 21, 2019, and hereby include all the contents of the above three applications by reference.

Technical field

This application relates to the technical field of camera modules. Specifically, this application relates to a material carrier suitable for automatic material refueling and corresponding module automatic test equipment.

Background technique

Currently, camera modules have been widely used in the field of consumer electronic terminals (such as smart phones, tablet computers, notebook computers, etc.), and have become an indispensable part of people's lives and have broad market prospects. The camera module is a small and precise product, and precise processing is required in the production process. In the early days of the industry, the camera module industry passed the growth period mainly through the purchase of a small amount of foreign production equipment combined with a large amount of manpower. Moreover, with the popularization of smart terminals, the camera module industry has ushered in a period of rapid development. During this period, small module factories with small volumes and immature technologies were gradually eliminated, leaving some module factories with mature technologies and huge volumes. These module factories digest a large number of module orders in the domestic market, and the production volume of orders can reach millions or even tens of millions. At this order of magnitude, the defects of excessive reliance on human production have become more and more prominent. Semi-automated or automated production of machinery and equipment is The inevitable trend.

The realization of semi-automated or automated production first requires the support of corresponding production equipment, which can be obtained through self-research and external purchase. Among them, externally purchased equipment is expensive on the one hand, and cannot fully meet the production needs of buyers due to production reasons (such as some production processes need to be kept secret). Self-developed equipment can be designed according to production needs in order to improve production efficiency.

This application mainly relates to camera module detection equipment. Camera module inspection is an indispensable part of camera module production. The camera module inspection equipment (hereinafter referred to as the module inspection equipment) also faces the major issue of how to improve production efficiency. Early module testing equipment usually has a dedicated testing equipment for each test link (that is, each test). Under the development idea of integration, more and more module testing equipment has integrated multiple testing links, and some module testing equipment can even integrate all testing 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 target plate corresponds to a camera module array composed of multiple camera modules, so that the test link can test multiple cameras at a time Modules, 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.

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

For example, in integrated module testing equipment, various functional modules are densely deployed in a compact space. In theory, this will help increase the output per unit area. However, this design will also cause inconvenience to the repair and maintenance of the equipment. When the equipment fails, the maintenance personnel will spend more time to restore the module testing equipment to production. Therefore, if the production interruption time caused by the failure is considered, the overall yield per unit area of the over-integrated module testing equipment may not reach the best state.

For another example, a camera module is a precision optical device, and testing equipment is often required to provide better protection for it during testing, so as to prevent the image quality of the module from degrading or even scrapping due to collision, contamination or other reasons. Therefore, the module carrying platform of the test equipment usually needs to cover the camera module. However, in an automatic production scenario, the cover body and the mechanism for moving the cover body may need to take up a lot of additional space, which will negatively affect the miniaturization of the equipment.

For another example, compact configuration of the camera module loading platform and the loading and unloading mechanism in the test equipment may help reduce the loading and unloading stroke of the module, 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 mounting platform of the camera module, it may cause a collision during the feeding process and cause the equipment to stop production. At the same time, this collision also brings great inconvenience to maintenance work. How to balance the above factors and design equipment that can not only reduce the failure rate, but also has the advantages of miniaturization and high production efficiency, is a big problem in this field.

Furthermore, for other materials similar to camera modules (such as structured light projection modules in mobile phones, fingerprint modules, etc.), automated equipment in the detection or production process faces a series of equipment miniaturization and improved production efficiency. When there are problems, you may also encounter the above-mentioned problems.

In summary, there is an urgent need for a solution for module inspection equipment (or other automated inspection or production equipment for materials similar to camera modules) that can overcome the above-mentioned drawbacks.

Summary of the invention

One purpose of the present application is to overcome the shortcomings of the prior art and provide a solution for a material carrier suitable for automatic material refueling which is helpful to the miniaturization of the equipment.

Another purpose of the present application is to overcome the shortcomings of the prior art and provide a solution for a miniaturized camera module automatic test equipment.

In order to solve the above technical problems, the present application provides a material carrier suitable for automatic material change, which includes: a mounting surface; at least one tooling fixture, the tooling fixture includes a material carrier plate fixed on the mounting surface and and The material carrier is pivotally connected to the cover; a light curtain device, which is adapted to generate a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the position of the light curtain when the cover is fully opened Tooling fixture; and a material change mechanism, which includes a material intake head, the material intake head can do lateral translation and lifting movement, wherein the lateral translation is a movement in a direction parallel to the mounting surface, and the lifting movement is a movement The direction is perpendicular to the movement of the mounting surface, and during the process of moving the material into the area above the material carrier through the lateral translation and during the process of moving the material out of the area above the material carrier , The material intake head and the material it takes are higher than the light curtain.

Wherein, the tooling fixture has a plurality and is distributed on the mounting surface in an array.

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

Wherein, after the opening action of each of the tooling fixtures of the material carrier is performed, the time interval before the material ingestion head performs the lifting motion is based on whether the duration of the light curtain being blocked exceeds a threshold To determine whether to activate safety measures, the safety measures include issuing an alarm and/or stopping the work of the refueling mechanism.

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

Wherein, the value of the opening angle of the full opening preset by the tooling fixture is in the range of 145°-162°.

Wherein, the material carrier further includes a cover driving mechanism, which is adapted to drive the cover to rotate around the rotation pivot.

Wherein, 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 with the piston of the cylinder and can reciprocate under the drive of the piston, One end of the driven rod is movably connected with the cylinder rod, and the other end is connected with the cover body.

Wherein, the cover has a root close to the rotation pivot and an end far away from the rotation pivot, the root has a protruding structure, and the driven rod is connected to the cap through the protruding structure .

Wherein, the air cylinder is located below the material carrier plate, the material carrier plate has an escape hole adapted to the protruding structure, and the escape hole allows the driven rod to pass through.

Wherein, for a single fixture, the rotation pivot includes a first segment and a second segment, and there is a gap between the first segment and the second segment, and the fixture is When the cover is opened, the driven rod can pass through the gap.

Wherein, the material carrier further includes: a position recognition sensor for recognizing the position of the cylinder rod, and the refueling mechanism starts or stops the lateral translation of the material intake head according to the recognized position information.

Wherein, the position recognition sensor is a magnetic sensor or a photoelectric sensor.

Wherein, the electronic device function module is a camera module, the cover has a through hole that fits the lens periphery of the camera module, and the cover body covers the camera module after the cover is closed. The part outside the lens.

Wherein, the material changing mechanism further includes: a support platform; and a guide rail, one part of which is installed on the support platform, and the other part extends to the outside of the support platform and is arranged above the material carrier; wherein, the material The pickup head is installed on the guide rail and can move horizontally along the guide rail.

Wherein, each of the tooling fixtures has two material loading positions.

Wherein, the carrier board is provided with a contact array, and the contact array is adapted to the connector of the camera module mounted in the tooling fixture. After the cover is closed, the cover is in the drive mechanism The camera module is pressed tightly under the action of, so that the connector is in close contact with the contact array.

According to another aspect of the present application, there is also provided an automatic module detection equipment, 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 tooling fixture, the tooling fixture includes a material carrier plate fixed on the mounting surface and a cover pivotally connected to the material carrier plate; a turntable, the plurality of detection modules are installed on the circumference of the turntable Along the area; a plurality of target modules, which are suitable for providing test light sources and targets for the electronic equipment functional modules mounted in the tooling and fixtures as materials; and a refueling mechanism, which includes a material intake head suitable for moving materials , The refueling mechanism and the plurality of target plate modules surround the turntable to form at least one refueling station and a plurality of test stations, and the turntable can drive the detection module relative to the target plate The module and the refueling mechanism rotate; wherein a light curtain device is provided at the refueling station, which is adapted to generate a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the cover The tooling fixture in a fully opened state; and, during the horizontal translation process of the material ingestion head, the material ingestion head and the material it ingests are always higher than the light curtain.

Wherein, the automatic detection equipment has a base, the turntable is rotatably installed on the base, and the light curtain device is fixed to the base or fixed with the base through an intermediary; or The light curtain device is fixed on a reference surface through an intermediary.

Wherein, the detection module can be turned by 90° so that it can be switched between a horizontal posture and a vertical posture. When the detection module is in a horizontal posture, the refueling mechanism can refuel the detection module. When the detection module is in the vertical posture, the detection module and the target module can complete the test item together.

Wherein, the automatic detection equipment further includes a control device, which is used to control the rotation of the turntable, and move a plurality of the detection modules to the refueling station and each test station in turn; and for any one of the detections Module, when the detection module is moved to the refueling station, the detection module is turned over to a horizontal posture, and then all the fixtures of the detection module are controlled to open the cover, and the refueling mechanism is controlled to complete the replacement of the detection module And control all the tooling and fixtures of the detection module to close the cover, then flip the detection module to a vertical posture, and finally control the rotation of the turntable to move the detection module to each test station in turn to perform various items. test.

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

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

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

3. The material carrier of the present application has a compact structure, which helps to reduce its occupied space.

4. The material carrier of this application is suitable for efficient inspection of large quantities of camera modules.

5. The camera module detection equipment of the present application has a compact structure and a small footprint, which helps to increase the output rate per unit area of the equipment. Camera modules usually need to be produced in a highly clean environment, so the cost of the plant (for example, the cost of equipment to provide a clean environment) is often higher than that of ordinary products. Therefore, increasing the yield per unit area of the equipment is very helpful in reducing the production cost of the camera module.

6. The camera module detection equipment of the present application is highly integrated and has high production efficiency.

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

8. The camera group detection equipment of the present application can perform simultaneous detection of multiple camera modules at a time (at least 16 modules can be detected at the same time), which meets the needs of large-scale mass production.

9. The module detection equipment of this application can realize automatic loading and unloading and automatic detection, and will give an alarm in time when a failure occurs, which greatly realizes the intelligent detection of the module and reduces the dependence on the operator.

10. In some embodiments of the present application, the inherent structure of the cylinder itself can be used to achieve the accurate position (opening angle) of the clamp cover for high-speed opening and closing by arranging a photoelectric switch circuit board and a matching baffle on the outside of it. Judgment, and then precisely control the loading and unloading actions of the suction nozzle of the loading and unloading mechanism to achieve high-efficiency detection of the camera module.

11. In some embodiments of the present application, there is no need to change the structure and operation mode of the cylinder itself, and because it is installed outside the cylinder, it can effectively avoid the arrangement of wires caused by the installation of sensors inside the cylinder, and ensure air tightness and space. Insufficiency and other problems, it is easy to install, maintain and replace, and has low cost and small footprint.

12. In some embodiments of the present application, compared with ordinary position sensors, the photoelectric switch has high accuracy and reliability, fast response speed, and strong anti-interference ability.

13 In some embodiments of the present application, the operating principle of the crank and rocker is used to realize the opening and closing of the clamp cover by controlling the gas flow into the cylinder, and at the same time, the opening and closing state signal is used to control the movement of the reclaiming mechanism, thereby facilitating The collaboration between multiple agencies simplifies the control procedures.

14. In some embodiments of the application, the baffle can be directly installed on the support rod fixed with the piston rod, and the installation position of the baffle on the support rod can be adjusted, which can conveniently and effectively improve the accuracy of position recognition, and at the same time Facilitate equipment debugging.

15. In some embodiments of the present application, this detection device is used in conjunction with an automatic loading and unloading system and a performance detection module to realize automatic detection of the module.

16. In some embodiments of the present application, the driving device for controlling the opening and closing of the clamp cover is mainly an air cylinder. By adjusting the driving force of the air cylinder, the opening and closing force of the clamp cover can be realized uniformly without damaging the clamp and the module.

17. In some embodiments of the present application, the state 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, stronger anti-interference ability, and can meet the requirements of accurate judgment of the arrival of the object. The time requirement of the location to be measured.

Description of the drawings

Fig. 1 shows a schematic top view of an integrated camera module automatic test equipment according to an embodiment of the present application;

Figure 2 shows a three-dimensional structural diagram of a rotary testing mechanism in an embodiment of the present application;

FIG. 3 shows a three-dimensional schematic diagram of the positional relationship between the detection module and the light curtain device in an embodiment of the present application;

4 shows a schematic top view of the positional relationship between the detection module and the light curtain device in an embodiment of the present application;

FIG. 5 shows a schematic diagram of a safety protection principle based on a light curtain device in an embodiment of the present application;

FIG. 6 shows a schematic perspective view of a single tooling fixture and its driving mechanism in a closed state at a first angle in an embodiment of the present application;

FIG. 7 shows a schematic perspective view of a single tooling fixture and its driving mechanism in a closed state at a second angle in an embodiment of the present application;

FIG. 8 shows a perspective schematic view of a single tooling fixture and its driving mechanism in an uncovered state in an embodiment of the present application at a first angle;

FIG. 9 shows a schematic perspective view of a single tooling fixture and its driving mechanism in an open lid state in an embodiment of the present application at a second angle;

FIG. 10 shows a three-dimensional schematic diagram of an openable and closeable tooling and a driving device thereof according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of the tool and its driving device when the tool is in an open state in an embodiment of the present application;

Figure 12 shows a schematic diagram of the openable and closeable tool and its driving device when the tool is in a closed state in an embodiment of the present application;

FIG. 13 shows a schematic diagram of an openable and closeable tool provided with a baffle and a photoelectric switch circuit board and its driving device in an embodiment of the present application; the double-headed arrow in the figure represents the moving direction of the piston;

FIG. 14 shows a schematic diagram of the positional relationship between the baffle and the photoelectric switch element in an embodiment of the present application;

FIG. 15 shows a schematic circuit diagram of a photoelectric switch element in an embodiment of the present application;

Figure 16 shows a schematic diagram of the positional relationship between the picking and unloading mechanism and the openable and closing tooling and its driving device in an incomplete state of the cover in an embodiment of the present application; the double arrow in the figure represents the moving direction of the piston;

Figure 17 shows a schematic top view of a module detection device in an embodiment of the present application.

Detailed ways

In order to better understand the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only 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.

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

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

It should also be understood that the terms "including", "including", "having", "including" and/or "including", when used in this specification, mean that the stated features, wholes, steps, and operations are present. , Elements, and/or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and/or combinations thereof. In addition, when expressions such as "at least one of" appear after the list of listed features, the entire listed feature is modified instead of individual elements in the list. In addition, when describing the embodiments of the present application, the use of “may” means “one or more embodiments of the present application”. Also, the term "exemplary" is intended to refer to an example or illustration.

As used herein, the terms "substantially", "approximately", and similar terms are used as terms indicating approximation, not as terms indicating degree, and are intended to describe the measurement that will be recognized by those of ordinary skill in the art. The inherent deviation in the value or calculated value.

Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill 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 meanings consistent with their meanings in the context of related technologies, and will not be interpreted in an idealized or excessively formal sense unless This is clearly defined in this article.

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.

Fig. 1 shows a schematic top view of an integrated camera module automatic test equipment according to an embodiment of the present application. 1, in this embodiment, the automatic test equipment 1000 includes a rotary testing mechanism 100 and multiple (for example, three) target modules 200 surrounding the rotary testing mechanism and a refueling mechanism 300 (also called For loading and unloading mechanism). Among them, the rotary testing mechanism can be provided with four stations, three of which are testing stations, and one is a loading and unloading station, that is, a refueling station. Each target module 200 may correspond to a test station. Each test station can complete at least one module test item. The refueling mechanism 300 corresponds to a refueling station. In this embodiment, during the rotation process, each test module 110 can arrive at each station in turn, to be combined with each target module 200 arranged around the rotating test mechanism to complete various tests. The target module 200 can have an independent base frame and shell (mainly suitable for relatively large target modules used for medium-distance and long-distance testing), or it can be directly installed on the base frame 150 ( Refer to FIG. 2) and share the same housing with the rotary testing mechanism 100 (mainly suitable for small-volume target modules for close-range testing). Further, FIG. 2 shows a three-dimensional structure diagram of a rotary testing mechanism in an embodiment of the present application. Referring to Fig. 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. Wherein, a plurality of brackets 130 are arranged in the peripheral area of the turntable 120, each bracket 130 is installed with one detection module 110, and the front of each detection module 110 is in a vertical state in the detection state It is arranged outwards (refer to the detection module 110b located at the bottom right in FIG. 2), that is, in the detection state, the front of the detection module 110 faces the target module (the target module is not shown in FIG. 2). In a non-detection state, such as a refueling state, the front side of the detection module 110 may face upward (refer to the detection module 110a located on the upper left in FIG. 2). Further, FIG. 3 shows a three-dimensional schematic diagram of the positional relationship between the detection module and the light curtain device in an embodiment of the present application, and FIG. 4 shows the positional relationship between the detection module and the light curtain device in an embodiment of the present application. Top view schematic. Referring to FIG. 3 and FIG. 4 (the two figures only schematically show the main components), in combination with FIG. 2, in this embodiment, the detection module 110 includes a material carrier 111. Further, FIG. 5 shows a schematic diagram of a safety protection principle based on a light curtain device in an embodiment of the present application. The open state of the tooling jig 113 is shown in FIG. 5. 5, the 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 the material carrier plate 114 pivot Shaft connected cover 115. The target module 200 is suitable for providing a test light source and a target object for the camera module mounted in the fixture 113 as a material. The refueling mechanism 300 includes a material intake head 310 suitable for moving materials. The refueling mechanism 300 and the plurality of target plate modules 200 surround the turntable 120 to form at least one refueling station and a plurality of tests. Work station, and the turntable can drive the detection module 110 to rotate relative to the target module 200 and the refueling mechanism 300. Wherein, a light curtain device 400 is provided at the refueling station, which is suitable for generating a light curtain 410 parallel to the mounting surface, and the position of the light curtain 410 is higher than that when the cover 115 is fully opened. The tooling fixture 113. And, in the process of lateral translation of the material intake head 310 (here, lateral translation refers to the process of moving the material into the area above the material carrier and moving the material out of the area above the material carrier Process), the material intake head 310 and the material it takes are always higher than the light curtain. After the opening action of each of the tooling fixtures of the material carrier is performed, before the material pickup head performs the lifting movement, it can be determined whether or not according to whether the duration of the light curtain being blocked continuously exceeds a threshold value Initiate security measures. The safety measures may include the light curtain device issuing an alarm and/or stopping the work of the refueling mechanism. In actual work, the light curtain device can always be in the on state during the entire detection process, and the control program determines whether it is currently in the position after the opening of each tooling and fixture is completed, and before the material ingestion head performs the lifting motion. In the time interval, if the judgment is yes, then read the signal of the light curtain device. 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 incompletely opened). Abnormal state), at this time, the light curtain device can issue an alarm and/or stop the work of the refueling mechanism, so as to avoid the refueling mechanism or the material taken by the refueling mechanism from colliding with the material carrier. The material carrier of the present application has the characteristics of small size, high reliability, and high refueling efficiency, and is particularly suitable for highly integrated automatic test equipment. Specifically, in this embodiment, by setting a safety light curtain, the height of the guide rail of the refueling mechanism can be lowered to a position closer to the material carrier under the premise of ensuring that there is no collision, thereby reducing the amount of material loading and unloading. Itinerary to ensure higher production efficiency.

Further, in an embodiment of the present application, the material intake head 310 can perform lateral translation and lifting movement, wherein the lateral translation is a movement in which the moving direction is parallel to the mounting surface, and the lifting movement is a vertical movement direction. For the movement of the mounting surface. In the xyz three-dimensional rectangular coordinate system, the lateral translation can be movement in the x-axis and y-axis directions, and the lifting movement can be the movement in the z-axis direction. In some embodiments, the lateral translation may also include rotation on the xy plane (ie, rotation with the z-axis as the rotation axis), so as to better realize the alignment of the camera module and the material carrier. The material intake head 310 may be a suction nozzle with adsorption capacity to suck materials, or a clamp that can hold materials. It should be noted that the clamp here usually refers to a clamp composed of two clamping arms, which can clamp materials from both sides in order to move the materials. It is two different concepts from the tooling clamp in this article.

Further, still referring to FIG. 1, in an embodiment of the present application, the refueling mechanism 300 may include a supporting table 320, a guide rail 330 and a material intake head 310. A part of the guide rail 330 is installed on the supporting platform 320, and the other part extends to the outside of the supporting platform 320 and is arranged above the material carrier 110. The material intake head 310 is installed on the guide rail 330 and can be translated laterally along the guide rail 330 (note that the lateral direction here refers to the moving direction parallel to the mounting surface of the material carrier 110). The guide rail 330 installed on the support table 320 may be a y-axis guide rail, and the material ingestion head 310 may be slidably connected to the y-axis guide rail through a sliding block. An x-axis guide rail can be further provided on the sliding block, so that the material ingestion head 310 can translate laterally in another degree of freedom. The material intake head can also realize the lifting movement through the lifting cylinder, that is, the z-axis movement. When loading, the material intake head 310 can take the material in the material tray area 340, and then move to the top of the material carrier 111 along the guide rail 330, and then discharge the material. When unloading, the material intake head 310 can pick up the material on 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 discharge the material. In actual work, the material ingestion head 310 may first perform the unloading process and then perform the loading process, so as to smoothly complete the refueling of a single material carrier 111. The tray area 340 can arrange one or more trays. When multiple trays are arranged, the trays carrying the untested modules and the trays carrying the tested modules can be set respectively. Further, the trays carrying the tested modules can be further divided into trays carrying good products and trays carrying inferior products.

Further, still referring to FIGS. 2, 3, 4, and 5, in an embodiment of the present application, each material carrier 111 may have a plurality of fixtures 113, and these fixtures 113 can be distributed in an array.述Installation surface 112. In this way, each material carrier 111 can carry multiple camera modules for simultaneous testing, thereby significantly improving production efficiency.

Further, with reference to FIGS. 2, 3, 4, and 5, in an embodiment of the present application, for the material carrier 111, a plurality of tooling fixtures 113 may be arranged in two rows, and the tooling fixtures 113 may have rotating Pivot, and the rotation pivot is located on a side close to the edge of the material carrier. That is, the covers 115 of the two rows of tooling fixtures 113 are opened to the outside. This design can reduce the occupied space of the material carrier 111 (in the closed state), which is conducive to the miniaturization of the equipment. It should be noted that in FIG. 4, the tooling fixture 113 in the upper row is in a closed state, and the tooling fixture 113 in the lower row is in an open state.

Further, in an embodiment of the present application, the automatic detection equipment has a base frame, the turntable 120 is rotatably installed on the base frame, and the light curtain device 400 is fixed to the base frame or through an intermediary. (For example, a support column) and the base frame are fixed together. In other embodiments, the light curtain device may also be fixed to the reference surface through an intermediary. The reference surface may be, for example, the ground or a horizontal working surface with an adaptive balancing mechanism.

Further, FIG. 5 shows a schematic diagram of a safety protection principle based on a light curtain device in an embodiment of the present application. Referring to Figure 5, after the tooling fixture 113 is opened (referring to after the cover is completely opened), the cover 115 and the material carrier 114 have an included angle, and this included angle can be referred to as the opening angle (material loading angle). The plate 114 bears against the mounting surface 112, so the opening angle can also be understood as the angle between the cover 115 and the mounting surface 112. When the detection module is in a horizontal posture, the mounting surface is also in a horizontal posture. At this time, the opening angle can also be It is understood as the angle between the cover 115 and the horizontal plane). The design value of the opening angle can be 160°. In this embodiment, during the lateral translation process of the material ingestion head (not shown in FIG. 5), the camera module taken by the material ingestion head is 5 mm away from the light curtain (note that this application does not Limited to this). This height can be achieved by setting the guide rail and the material intake head of the refueling mechanism accordingly. It should be noted that, in fact, the light curtain has a certain thickness (for example, 1 mm), where 5 mm from the light curtain means 5 mm from the upper surface of the light curtain (that is, the upper limit position). In this embodiment, when the cover is fully opened, the highest point of the fixture is 10 mm away from the light curtain (note that the application is not limited to this). Here, 10mm from the light curtain means 10mm from the lower surface (ie, the lower limit position) of the light curtain. The highest point may be, for example, the highest point of the cover body when the tooling fixture is opened to the maximum angle (that is, when the cover is fully opened), and the highest point may also be located in other structures of the tooling fixture. As mentioned above, after the opening action of each of the tooling fixtures of the material carrier is performed, before the material pickup head performs the lifting movement, according to whether the duration of the light curtain being blocked continuously exceeds a threshold value , To determine whether to activate safety measures, the safety measures may include the light curtain device issuing an alarm and/or stopping the work of the refueling mechanism. In actual work, the light curtain device can always be in the on state during the entire detection process, and the control program determines whether it is currently in the position after the opening of each tooling and fixture is completed, and before the material ingestion head performs the lifting motion. In the time interval, if the judgment is yes, read the signal of the light curtain device. 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 of the tooling fixture is not completely opened). At this time, the light curtain device can issue an alarm and/or stop the work of the refueling mechanism, so as to avoid the refueling mechanism or the material taken by the refueling mechanism from colliding with the material carrier. Figure 5 shows a failure caused by incomplete opening of the cover. Referring to Figure 5, after the opening of the tooling fixture is performed, the opening angle of the tooling fixture on the right is only 144°, which does not reach the design value of 160°. At this time, the cover blocks the light curtain 410, causing the light curtain to send a signal. When the signal continues to exist, it can be determined that the fixture is abnormal (for example, the cover of the fixture is not completely opened). In this embodiment, the opening and closing actions of the tooling fixture 113 need to be driven by the driving mechanism. Due to various factors such as tolerances, there is always a risk of incomplete opening of the lid (for example, insufficient power of the driving mechanism may lead to incomplete opening of the lid). ). If you do not take precautions, it may cause the refueling mechanism or the material to collide with the cover. This collision may cause damage to the equipment or severely affect the accuracy of the equipment. After the light curtain device of this embodiment is installed, the above collision problem can be effectively avoided. It should be noted that due to various factors such as external disturbances, the material carrier and the refueling mechanism may be misaligned (this misalignment is often difficult to observe with the naked eye), and the misalignment may cause the refueling mechanism or the material to collide with the cover. Installing the light curtain device of this embodiment can also effectively avoid such collisions. It should be noted that, in this application, the preset opening angle (the opening angle for full opening) is not limited to 160°. In other embodiments, the opening angle can be set at 145°-162°.

Further, the material carrier further includes a cover driving mechanism, which is adapted to drive the cover to rotate around the rotation pivot. Fig. 6 shows a schematic perspective view of a single tooling fixture and its driving mechanism in a closed state at a first angle in an embodiment of the present application. FIG. 7 shows a schematic perspective view of a single tooling fixture and its driving mechanism in a closed state at a second angle in an embodiment of the present application. Fig. 8 shows a perspective schematic view of a single tooling fixture and its driving mechanism in an open lid state in an embodiment of the present application. Fig. 9 shows a schematic perspective view of a single tooling fixture and its driving mechanism in an open state in an embodiment of the present application at a second angle. With reference to FIGS. 6-9, in 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 It is connected with the piston of the cylinder 118 and can reciprocate under the drive of the piston. Specifically, the piston may have a piston rod 119c, and the piston rod 119c may be fixed at the bottom of the cylinder rod 119a. In this way, under the driving of the piston, the cylinder rod 119a can reciprocate relative to the cylinder block of the cylinder 118 (for example, linear reciprocating movement), that is, the cylinder rod 119a can move up and down relative to the cylinder block of the cylinder 118. One end of the driven rod 119b is movably connected with the cylinder rod 119a, and the other end is connected with the cover body. In this embodiment, the cover has a root close to the rotation pivot 117 and an end far away from the rotation pivot 117, the root has a convex structure 115a, and the driven rod 119b passes through the convex The lift structure 115a is connected to the cover 115. For a single fixture, the rotation pivot 117 can be divided into two sections (that is, the rotation pivot 117 can include a first section 117a and a second section 117b, refer to FIG. 7), and these two sections (the first section There may be a gap 117c between the segment 117a and the second segment 117b) to form a retreat area that allows the driven rod 119b to pass through (refer to FIG. 8). The air cylinder 118 may be located below the material carrier 114, and the material carrier 114 has an escape hole 114a (or called an escape groove) adapted to the raised structure 115a, and the escape hole 114a allows The driven rod 119b passes through. This design can avoid mutual interference between the cover driving mechanism and the refueling mechanism, and the space utilization rate is high, which helps to reduce the volume of the detection module.

Further, in an embodiment of the present application, the material carrier further includes a position recognition sensor, which is used to recognize the position of the cylinder rod (that is, to recognize the relative position of the cylinder rod with respect to the cylinder block), so The refueling mechanism starts or stops the lateral translation of the material intake head according to the recognized position information. In this way, the refueling mechanism avoids the lid opening process of the tooling fixture based on the recognized position information of the cylinder rod. Avoid collisions during the opening process. Through this design, the laterally translational track of the pickup head of the refueling mechanism can be set at a lower position, so as to improve work efficiency. The position recognition sensor is a magnetic sensor or a photoelectric sensor.

Further, still referring to FIGS. 6-9, in an embodiment of the present application, in the material carrier, the cover 115 has a through hole 115b that matches the outer circumference of the lens of the camera module, and The cover body covers parts other than the lens of the camera module after the cover is closed.

Further, still referring to FIG. 8, in an embodiment of the present application, in the material carrier, each of the tooling fixtures 113 has two camera

module mounting positions

113a and 113b. Wherein, each carrier 114 is suitable for carrying two of the camera modules, and each cover 115 also has two camera

module adaptation structures

115c and 115d, so as to fix the two camera modules after the cover is closed. group. Each of the cylinders is suitable for driving the opening and closing of a fixture. Therefore, compared with the solution that each fixture is equipped with a camera module, the design of this embodiment can reduce the number of cylinders, which is beneficial to reduce the volume occupied by the drive mechanism, while still maintaining a high cover opening and closing rate. And a lower failure rate.

Further, in an embodiment of the present application, a contact array may be provided in the material carrier of the tooling fixture, and the contact array is adapted to the connector of the camera module mounted in the tooling fixture After the cover is closed, 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. This design helps to achieve efficient and reliable electrical connections, thereby reducing the time required for feeding a single module, thereby improving production efficiency.

Further, still referring to FIG. 2, in an embodiment of the present application, a central storage shell 140 may be disposed in the center of the turntable 120, and the top of the central storage shell 140 may have a through hole to allow cables to pass through. The cables drawn from the back (or other parts) of each detection module 110 may pass through the through hole and be housed in the central housing 140.

Further, still referring to FIG. 2, in an embodiment of the present application, the detection module 110 can be turned 90° relative to the bracket 130, so that the detection module can be switched 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 (ie, a loading and unloading mechanism), which is suitable for taking in the camera module placed in a horizontal posture (the tray loaded with the camera module can also be placed horizontally). It moves to the detection module in the horizontal posture, and places it in the fixture of the detection module in the 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 have to have a flip function, thereby reducing its complexity. During the transfer process, the tray and camera module are usually placed horizontally. After the action is decomposed, the camera module can be kept in a horizontal state, without additional loading and unloading time due to the turning action, and the turning action of the detection module can be performed at the same time as the movement of the module, which is beneficial to improve production efficiency. Specifically, when the detected camera module returns to the loading and unloading position (ie, the reloading station), the material carrier can be turned by 90°, so that the loading and unloading of the camera module is carried out on a horizontal surface. When the loading is completed, the stage will be turned by 90°, and then the turntable will rotate, and the stage with the animal material will move to the first detection module to start the detection of the camera module. In other words, during inspection, 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 for testing (for example, a target), and the target refers to a target photographed by the module to be tested. On the other hand, because the complexity of the loading and unloading mechanism is reduced, especially the degree of freedom of movement required by the loading and unloading mechanism is reduced, so that the space occupied by its moving range is reduced (for example, a multi-joint robotic arm that can realize flipping usually requires Occupies a larger activity space, and after reducing the automatic degree of turning, a simpler structure based on guide rail mechanism can be used to realize loading and unloading). In this way, the automatic detection equipment does not need to reserve a large space for avoiding the range of action of the loading and unloading mechanism, which helps to make the detection equipment more compact and improve the yield per unit area.

Further, in an embodiment of the present application, the detection module may include an overturning cylinder, and the overturning cylinder can drive the detection module to make a 90° overturn with respect to the bracket (in the following, other embodiments will be combined. The detection module, flipping cylinder, etc. will be described in more detail). In this way, the detection module can be turned by 90 degrees so that it can be switched between a horizontal posture and a vertical posture. When the detection module is in the horizontal posture, the refueling mechanism can refuel the detection module, and when the detection module is in the vertical posture, the detection module and the target module in the corresponding position can complete the refueling together Corresponding test items.

Further, still referring to FIGS. 2 and 3, in an embodiment of the present application, the bracket may include two pillars, the detection module is installed between the two pillars, and each pillar passes through a single tight The firmware realizes the mechanical connection between the pillar and the detection module. This design can realize the technical effect of easy disassembly and easy maintenance of the automatic detection equipment. Specifically, in this embodiment, the detection module is arranged in the peripheral area of the turntable. When a detection module fails, only two fasteners need to be opened, and the cable at the back (or other location) of the detection module is unplugged. Plug, the fault detection module can be easily removed, and then replaced with a new detection module, and then the operation of the detection equipment can be quickly restored. Therefore, the solution of this embodiment reduces the failure interruption time, thereby improving production efficiency. In particular, in a scenario of large-scale mass production (such as tens of millions of scale mass production), reducing the interruption time of failures has very practical significance for improving production efficiency.

Further, in an embodiment of the present application, in the automatic detection device, each detection module may have an AFC detection function, a DCC detection function, and an OTP programming function. Still referring to FIG. 2, the OTP burning unit 116 can be directly fabricated on the detection module (of course, in another embodiment, the OTP burning unit 116 can also be eliminated). The AFC detection function and the DCC detection function need to be implemented with the corresponding target module. And each target module can be configured to be dedicated to a detection function. Based on the turntable of this embodiment, each detection module can be sequentially rotated to the corresponding target module of the AFC detection function and the DCC detection function, so as to realize the AFC detection and the DCC detection. Moreover, since each detection module has AFC detection function, DCC detection function and OTP burning function, the camera module does not need to be repeatedly placed on and taken out of the material carrier to complete the entire test process. In Figure 1, there are four detection modules, but the present application is not limited to this number. For example, the number of detection modules arranged along the circumference of the turntable can also be five, six, and so on. In another embodiment, each detection module may only be responsible for detecting one type of performance of the camera module.

Further, still referring to FIG. 2, in an embodiment of the present application, the turntable 120 is arranged on a horizontal base 151, the horizontal base 151 has a flat surface, and the base 151 can be arranged on a base with a stable structure. On the frame 150, 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 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 (ie, the vertical direction) direction is extremely small (ie, within the error tolerance range). In this embodiment, the turntable 120 has four brackets 130, and the four brackets 130 are respectively arranged at the edge-cut positions of the turntable 120. Particularly, in this embodiment, the edge trimming position of the turntable has four trimming grooves 121, and two sides of each trimming groove 121 are respectively provided with a pillar of the bracket 130. 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 may have openings. The opening of the pillar on one side of the detection module 110 may be provided with a rotating bearing, and the opening of the pillar on the other side may be provided with a turning motor (the turning motor can also be turned by a cylinder. Instead, I won’t repeat them below). The turning motor is connected to the detection module 110 to drive the detection module 110 to rotate around a rotating bearing, so that the material carrier 111 can be at different angles. Further, the limit structure can be used to make the turning range of 0-90 degrees, 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 flipping motor is a driving mechanism for driving the detection module 110 to rotate as a whole (from a horizontal attitude to a vertical attitude or from a vertical attitude to a horizontal attitude), and is not a driving mechanism for driving the tooling fixture to open and close the cover. The drive mechanism.

Further, in an embodiment of the present application, the automatic detection equipment further includes a control device, which is used to control the rotation of the turntable and move a plurality of the test modules to the refueling station and each test station in turn. ; And for any one of the test modules, when the test module is moved to the refueling station, the test module is turned over to a horizontal posture, and then all the fixtures of the test module are controlled to open the cover and control the replacement The material mechanism completes the refueling of the test module, and controls the closing of all the fixtures of the test module, then turns the test module to a vertical posture, and finally controls the rotation of the turntable to turn the test modules in sequence Move to each test station for various tests.

It should be noted that the material carrier of the present application is not limited to rotating integrated testing equipment. For example, the material carrier of the present application can also be applied to integrated detection equipment in which each detection station is arranged in a linear manner, or a single-item detection equipment dedicated to a single detection link. Through the safety light curtain, the material carrier can realize automatic material change with low failure and high efficiency.

For example, in an embodiment of the present application, a material carrier suitable for automatic material changing is provided, which includes: a mounting surface, at least one tooling fixture, a light curtain device, and a material changing mechanism. Wherein, the tooling fixture includes a material carrier board fixed on the mounting surface and a cover pivotally connected with the material carrier board. The light curtain device is adapted to generate 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. The material changing mechanism includes a material intake head suitable for moving materials, wherein, during the horizontal translation process of the material intake head, the material intake head and the materials it ingests are always higher than the light curtain. The material carrier of this embodiment can realize automatic material refueling with low failure rate and high efficiency, and at the same time has the advantage of small occupied volume, which is conducive to miniaturization of equipment. For the integrated detection equipment in which the detection stations are arranged linearly, or the single-item detection equipment dedicated to a single detection link, the material carrier suitable for automatic refueling in this embodiment can be applicable.

The material carrier of the present application can also be applied to other automatic detection or production equipment of materials similar to camera modules, so as to realize automatic material change with low failure rate and high efficiency, and realize the miniaturization of equipment. For example, the material may be other functional modules of electronic equipment to be tested. The electronic devices here can be various consumer electronic terminal devices, such as smart phones, tablet computers, notebook computers, and so on. An electronic device functional module refers to a module that can be built into an electronic device to complete a specific function of the electronic device. For example, camera modules, structured light projection modules, TOF projection modules (where TOF is called Time of Flight), fingerprint recognition modules, and so on. These modules are usually small in size and inconvenient to be transported one by one in the production line. Usually, trays (or called product boxes) are used for batch loading, and then transported in the production line in units of the entire tray. In addition, these modules usually need to have connectors. The connectors usually have a dense contact array to be electrically connected to the motherboard of an electronic device (such as a mobile phone), so that the module can receive power and exchange data (such as outputting images). . Before leaving the factory, such modules usually need to be energized and factory 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 above-mentioned electronic equipment functional modules, so as to realize low failure rate and high efficiency automatic refueling, and at the same time realize the miniaturization of equipment (referring to the detection equipment).

In the above embodiment, the tooling fixture of the material carrier is an openable and closing tooling. During use, the tooling fixture needs to be opened first, the electronic device function module to be tested is put in, and then the tooling fixture is closed. In order to carry out follow-up testing. In the process of 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 feedback the state information to the control center to avoid different mechanisms in the equipment Or collisions between different modules cause equipment failure. Specifically, if the tooling and fixture cover of the inspection module is not opened in time or fully opened, the automatic loading and unloading mechanism will perform the loading and unloading action, which will cause the suction nozzle of the loading and unloading mechanism to collide with the fixture cover, causing equipment failure, and then Affects the detection efficiency of the camera module; due to the extremely high opening and closing rate of the tooling cover, 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 accurately judges the position (opening angle) of the cover body in the operation of high-speed automatic opening and closing of the tooling, and sends the position information to the control system in time and accurately for effective control, so as to be compatible with the automatic loading and unloading mechanism and The automatic detection device cooperates to effectively improve the detection efficiency of the mobile phone module.

In the following, a series of embodiments will be used to describe the state detection device for the openable and closeable tooling. The state detection device can be used in conjunction with the material carrier suitable for automatic material refueling and the corresponding module automatic test equipment, so as to realize the accurate judgment of the position (opening angle) of the clamp cover body that is opened and closed at a high speed, and then accurately Ground control of the loading and unloading movement of the suction nozzle of the loading and unloading mechanism to achieve high-efficiency detection of the camera module.

According to an embodiment of the present application, a state detection device for an openable and closeable tool is proposed, which is particularly suitable for an openable and closeable tool for testing electronic equipment functional modules (such as camera modules). Fig. 10 shows a three-dimensional schematic diagram of an openable and closeable tool and its driving device according to an embodiment of the present application. In this embodiment, the tooling can be applied to, for example, camera module detection equipment. Fig. 11 shows a schematic diagram of the openable tool and its driving device when the openable tool in an embodiment of the present application is in an open state. FIG. 12 shows a schematic diagram of the openable and closeable tooling in an embodiment of the present application when the tooling and its driving device are in a closed state. Fig. 13 shows a schematic diagram of an openable and closeable tool provided with a baffle and a photoelectric switch circuit board and its driving device in an embodiment of the present application. Fig. 14 shows a schematic diagram of the positional relationship between the baffle and the photoelectric switch element in an embodiment of the present application. Specifically, referring to FIGS. 10 to 14, in this embodiment, the tooling 1001 includes a carrier 1100 and a cover 1200, wherein the carrier 1100 has two material loading positions. In other embodiments, each tooling may also have only one material loading position, or three or more material loading positions. In this embodiment, the material may be a camera module. For traditional tooling for carrying camera modules, manual opening and closing methods are usually used for loading and unloading. In this embodiment, the automatic opening and closing of the tooling is realized based on the opening and closing driving device. The state 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 that characterizes the opening and closing state of the tooling, so that the tooling can interact with other mechanisms (such as the loading and unloading mechanism) during the high-speed opening and closing process. Or other picking and unloading mechanism) to complete the loading and unloading work fully automatically and efficiently. Specifically, the state detection device of this embodiment may include: an opening and closing driving device 2000, a baffle plate 3000, and a photoelectric switch circuit board 4000. Wherein, the opening and closing driving device 2000 may include a moving part and a stationary part, and the moving part is connected to the cover body 1200 and is used to drive the cover body to open and close the cover. Both the stationary part of the opening and closing driving device and the carrier of the tooling can be fixed at the stationary end. The stationary end can be a stationary platform or other forms of stationary components. The moving part of the opening and closing drive device can reciprocate relative to the stationary part. In this embodiment, the opening and closing of the cover 1200 is obtained by detecting the start and end points of the stroke of the moving part used to drive the cover 1200 (the start and end points of the stroke here are the two end points of the linear motion stroke of the moving part). Status information, therefore, the opening and closing driving device 2000 can be regarded as a part of the status detection device. Further, the baffle 3000 may be installed on the moving part. Specifically, the baffle 3000 may be installed on a component connected to the piston of the opening and closing driving device and capable of linearly reciprocating 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 can move to the position of the photoelectric switch element 4200 with the moving part and shield 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 characterize the completion of opening or closing of the lid, so as to achieve the function of accurately detecting (for example, compared to the traditional magnetic position sensor based) the opening and closing state of the tool. For example, assuming that the tooling 1001 is in the closed state at the starting point of the stroke of the moving part, the position of the baffle 3000 may be the position where the baffle covers the photoelectric switch element 4200 when the moving part is at the starting point of the stroke. In this way, each time the moving part moves to the starting point of the stroke, the photoelectric switch circuit board 4000 can output a cover completion signal. Similarly, assuming that at the end of the stroke of the moving part, the tooling 1001 is at the maximum opening position (that is, when the cover is opened to the set maximum angle), then the position set by the stopper 3000 can be: when the moving part is at the end of the stroke The blocking sheet 3000 just shields the position of the photoelectric switch element 4200. In this way, each time the moving part moves to the end of the stroke, the photoelectric switch circuit board can output a signal for opening the cover. The movement of the moving parts can be reciprocating, that is, between the start of the stroke and the end of the stroke, so as to continuously repeat the opening and closing actions, and the detection device will continuously output the opening and closing state signals corresponding to the fixture. . The outputted lid opening and closing state signal can, for example, cooperate with an automatic loading and unloading mechanism to complete the automatic loading and unloading of the mobile phone module, thereby helping to realize the automatic detection of the fully automatic mobile phone module.

Further, in an embodiment of the present application, the opening and closing driving device 2000 is a cylinder driving device. The starting point and the ending point of the stroke can be understood as the starting position and the ending position of the reciprocating movement of the piston in the cylinder. The cylinder may include a cylinder block 2100, a piston 2200, and a transmission mechanism. Gas can be injected and released into the cylinder 2100, and the piston 2200 can be driven to reciprocate in the cylinder 2100 through the injection and release of the gas. Both the piston 2200 and the transmission mechanism are moving parts. The piston 2200 is located inside the cylinder 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 2100. The end extending out of the cylinder 2100 can be connected to the crank connecting rod 2400 outside the cylinder. One end of the crank connecting rod 2400 is fixed to the piston rod 2300, and the other end is connected to the cover 1200. The blocking piece 3000 is installed on the crank connecting rod 2400. Preferably, the crank connecting rod 2400 includes a supporting rod 2410 and a driven rod 2420 that are pivotally connected. One end of the supporting rod 2410 is fixed to the piston rod 2300, and the other end is pivoted to the driven rod 2420. In a rotational connection, one end of the driven rod 2420 is pivotally connected to the support rod 2410, and the other end is connected to the cover 1200. Specifically, a protruding structure 1210 may be provided at the root of the cover, and the driven rod 2420 is connected to the protruding structure 1210 (refer to FIG. 10). . The blocking piece 3000 is installed on the supporting rod 2410. The back of the circuit board 4100 of the photoelectric switch circuit board 4000 can be installed on the outer surface of the cylinder 2100 (or first fix a mounting base on the outer surface of the cylinder, and then the back of the circuit board is supported and fixed to the mounting The base, at this time, the mounting base can be regarded as a part of the stationary component). In this embodiment, by arranging the photoelectric switch circuit board 4000 and the baffle plate 3000 light-sensing to the photoelectric switch outside the cylinder, the inherent structure of the cylinder itself can be directly used without changing the structure and operation mode of the cylinder itself. This is especially true for It is very advantageous for small cylinders. In this embodiment, the sensor and other components added for state detection (such as baffles) are installed outside the cylinder. Therefore, this embodiment can effectively avoid many problems caused by installing sensors inside the cylinder (such as how to arrange the wires). , How to ensure the air tightness and how to reduce the space occupation, etc.), so that the cylinder itself has a simple structure, is easy to install, maintain and replace, and is low in cost and small in size. Among them, on the one hand, the baffle and the photoelectric switch circuit board are generally thin or thin, suitable for inserting into the gap between adjacent tooling, and multiple toolings are arranged in an array to form a compact material carrier and The detection module is therefore conducive to reducing the occupied volume. On the other hand, the baffle plate 3000 and the photoelectric switch circuit board 4000 are externally installed, which can make the structure of the cylinder itself simple, and is also beneficial to reduce the volume. Generally speaking, electronic equipment modules such as camera modules need to be produced and tested in a highly clean environment. The cost of the workshop is relatively high, and people expect to increase the output per unit area as much as possible. Therefore, the output rate per unit area is an important evaluation index for module testing equipment. This requires the module testing equipment to be miniaturized as much as possible. Therefore, the installation space of the material carrier and the detection module of the module testing equipment (such as the mobile phone camera module testing equipment) is very limited. On the other hand, a single module testing equipment sometimes integrates multiple testing modules to perform testing of multiple different items at the same time. This highly integrated design also requires the tooling and auxiliary structures used to carry the modules to be as small as possible. Volume, and the design of this embodiment can effectively solve the above-mentioned problems.

In the testing of functional modules of electronic equipment, especially the testing of precision optical devices such as camera modules, the testing equipment is usually required to provide better protection for the tested module to avoid collision, contamination or other reasons. The quality is degraded or even scrapped. Therefore, the tooling of the test equipment needs to cover the camera module. In order to realize the miniaturization of automatic production equipment and improve the test efficiency, it is necessary to avoid the cover and the mechanism for moving the cover from occupying more space, and the module mounting platform and the picking and unloading mechanism in the test equipment are compactly configured to reduce the mold size. Group loading and unloading strokes; moreover, by reducing the distance between the module loading platform and the loading and unloading control mechanism (especially reducing the height difference between the material intake head and the module loading platform), it helps to reduce slippage. The space occupied by the block and the guide rail can also improve the placement accuracy of the module in the loading platform, avoiding problems such as inaccurate placement of the module in the loading platform due to a large displacement distance and failure of normal electrical connection. FIG. 16 shows a schematic diagram of the positional relationship between the picking and unloading mechanism and the openable and closing tool and its driving device in an incompletely opened state in an embodiment of the present application. Referring to Figure 16, it can be seen that the height difference between the material intake head 310 (or guide rail 330) and the module carrying platform (ie tooling) is very small. Under the preset opening angle, the material intake head and its intake The module just can cross the highest point of the cover 1200 when the tooling is fully opened. Since the material intake head (or guide rail) and the module loading platform have a small height difference, when the material intake head is moved to the top of the module loading platform, it only needs to go down (that is, descend) a small distance to move The module is placed on the module carrying platform (the carrier of the tooling). The material intake head is usually combined with the guide rail by a slider. If the material intake head requires a large lifting distance, in order to ensure mechanical stability, the slider and the guide rail are often improved accordingly, which leads to material picking and unloading. The space occupied by the organization increases. Therefore, by reducing the distance between the module mounting platform and the material picking and unloading control mechanism, it can help to reduce the space occupied by the material picking and unloading mechanism, which is beneficial to realize the miniaturization of the module detection equipment. In this embodiment, based on the cooperation of the baffle plate 3000 and the photoelectric switch circuit board 4000, accurate detection of the opening and closing state of the cover can be realized, which avoids collisions caused by incomplete opening of the tooling. Figure 16 shows the position of the lid body 1290 when the lid is incompletely opened. It can be seen that if the tooling is incompletely opened, the material intake head 310 or the material it ingests (such as the module 3300) may be in contact with the lid. The body (for example, the cover at the cover position 1290) collides.

Further, in this embodiment, each tool can be equipped with a small-sized cylinder with a simple structure as a driving device for driving the opening and closing of the cover, which is beneficial to realize the miniaturization of the equipment and improve the test efficiency. In addition, because the cover used to protect the camera module needs to be opened and closed frequently during the rapid test, it is necessary to accurately determine the position/state of the cover and accurately cooperate with the feeding and unloading control mechanism to avoid the loading and unloading process The middle cover collided with the feeding and unloading control mechanism, which caused the equipment to stop production. By setting the photoelectric switch element and the corresponding baffle to block the photoelectric switch element at a specific position (for example, corresponding to the position where the cover is fully opened) by the baffle to form an induction signal, the position of the cover (opening angle) can be accurately determined Or state (open or closed), so as to cooperate with the feeding and unwinding control mechanism to avoid collision between the feeding and unwinding control mechanism and the cover. Due to the extremely fast movement speed of the module test equipment, for example, the tooling can be completed in a very short time from the opening of the cover, the completion of taking and unloading to the closing of the cover, and the distance between the material intake head of the loading and unloading control mechanism and the tooling is very close. (The location of the material intake head and the tooling is extremely close. On the one hand, it is to shorten the running distance of the material intake head, and on the other hand, to improve the efficiency of the module's automatic loading and unloading), the general position sensor cannot meet the requirements in terms of accuracy. Taking a magnetic sensor as an example, based on the principle of magnetic field induction, it is possible that a magnetic induction signal will be generated when the object to be measured is close to the measuring point without actually reaching the measuring point, causing the measuring result to be insufficiently accurate. Compared with other position sensor products on the market, the advantages of the photoelectric switch element-based circuit board of this embodiment are that its accuracy and reliability are higher, the response speed is faster, and the anti-interference ability is stronger. The requirements of the moment of measuring the position.

Further, in an embodiment of the present application, the photoelectric switch element includes a first photoelectric switch element and a second photoelectric switch element, and when the blocking sheet shields the first photoelectric switch element, the circuit board is used for output In order to indicate the status signal of the completion of lid opening, when the baffle plate blocks the second photoelectric switch element, the circuit board outputs a state signal for indicating the completion of lid closure. Preferably, the blocking sheet includes a first blocking sheet for blocking the first photoelectric switch element and a second blocking sheet for blocking the second photoelectric switch element. By providing two photoelectric switch elements and two corresponding baffles, it is possible to determine the time when the cover body is fully opened and the time when the cover body is fully closed, and perform corresponding control. For example, when the first baffle plate blocks the first photoelectric switch element, the first photoelectric switch element sends an induction signal to the controller, and the controller controls the material pickup head of the picking and unloading mechanism to move to the tooling according to the received induction signal. Picking and unloading operation; when the second baffle covers the second photoelectric switch, the second photoelectric switch element sends a sensing signal to the controller, and the controller starts the subsequent module test operation according to the received sensing signal. It should be noted that, in this application, when the state detection device only needs to output the lid opening completion signal, or only needs to detect the lid closure completion signal, the state detection device may only have one stopper and one photoelectric switch element. When the state detection device needs to output two signals, the opening completion signal and the closure completion signal, the state detection device may have two baffles and two photoelectric switch elements. If the shape and position of the baffle are designed reasonably, one baffle and two photoelectric switch elements can also be used to output the opening completion signal and closing completion signal. Under this design, the baffle is set at the beginning of the stroke at the maskable location. Said the position of the first photoelectric switch element, at the end of the stroke, the baffle can be moved to a position that just shields the second photoelectric switch element, so that the first photoelectric switch element and the second photoelectric switch element can promptly output the opening completion signal and closing the cover These two signals are finished signal. On the other hand, in this embodiment, the photoelectric switch circuit board may have an LED light, and the LED light may be used as a status signal indicator. In this way, if the safety of the equipment operator and the cleanliness of the equipment are considered, when the openable and closing tooling and its auxiliary mechanical devices are all installed inside the box, the operator can judge by observing the indicator light. The current opening and closing state of the tooling.

Further, referring to FIGS. 11 and 12 in combination, in an embodiment of the present application, the cover 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, reduces the number of parts, and improves the yield per unit area. Preferably, one end of the driven rod 2420 is pivotally connected to the cover 1200 at a position close to the root of the cover (close to the pivotal connection position of the cover 1200 and the carrier 1100), so that the material intake of the take-out control mechanism is not affected. The opening and closing of the cover body can be better controlled when the head is carrying out the material picking and unloading operation, so that the opening and closing force of the crank and rocker control fixture cover body is more uniform, and it will not cause excessive force to damage the module in the fixture or insufficient force to make the cover The body is not tightly closed, which affects the detection of the module.

Further, with reference to FIGS. 11, 12, and 13, in an embodiment of the present application, the baffle 3000 has a strip-shaped mounting hole or an elongated mounting hole, and the fastener passes through the strip-shaped mounting hole to The blocking piece 3000 is fixed to the support rod 2410, and the installation position of the blocking piece 3000 is adjustable within the range of the strip-shaped mounting hole. By setting the strip-shaped mounting holes on the baffle 3000, the position of the baffle 3000 on the support rod 2410 can be adjusted, so that it can be adjusted according to specific operations or for individual tooling (or for different types of tooling and picking and unloading mechanisms. Combination method) Adjust the maximum opening angle of the cover 1200 relative to the carrier 1100 (it can be understood as the preset opening angle after the opening is completed, and this angle can also be understood as the optimal opening angle). Furthermore, in this embodiment, when it is necessary to adjust various parameters of the tooling such as the speed of opening and closing the cover, the pressure applied by the closing action to the module, the maximum opening angle, etc., only the airflow into the cylinder can be changed. The installation position of the baffle can be adjusted according to the size and adaptability, without further adjustment of the control program of other mechanisms of the inspection equipment such as the picking and unloading mechanism. Therefore, this embodiment can greatly facilitate the debugging of the tooling to achieve the best condition.

Further, in an embodiment of the present application, as shown in FIGS. 11 and 12, the support rod 2410 includes a base 24110 and a vertical rod 24120 mounted on the base, and the bottom end of the piston rod 2300 is fixed to the base 24110. With respect to the base 24110, the blocking piece 3000 is installed on the pole 24120. The movement direction of the piston 2200 is parallel to the vertical rod 24120. The upright rod 24120, the base 24110 and the piston rod 2300 are arranged in a U shape.

Further, in an embodiment of the present application, as shown in FIG. 14, 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 to the support rod, and The end of the mounting part 3100 extends laterally to the outside of the support rod 2410, and the shielding part 3200 is located at the end of the mounting part 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 part 3200 can move to the gap between the transmitting end and the receiving end along with the moving part, so that the shielding part 3200 can shield from The signal transmitted from the transmitting end toward the receiving end causes the photoelectric switch element 4200 to generate an induction signal and send it to the controller. 10, preferably, the cover 1200 has a raised structure 1210 at the root, the driven rod 2420 is connected to the cover 1200 through the raised structure 1210, wherein the cover 1200 and The carrier 1100 is pivotally connected by a pivot, and the root is a part of the cover 1200 close to the pivot.

Further, in an embodiment of the present application, an LED lamp is also provided on the photoelectric switch circuit board, and the LED lamp lights up when the blocking sheet covers the photoelectric switch element. The setting of LED lights can play an indication role. Through the display status of the external LED lights, the on-site personnel can know whether the cover of the tooling is in the closed state or the open state. The photoelectric switch circuit board is provided with a signal output terminal connected with the controller, which can send the sensor signal sent when the photoelectric switch element is blocked or the signal that the LED lamp is lit to the controller. Preferably, the photoelectric switch circuit board is provided with a first LED lamp corresponding to the first photoelectric switch element and a second LED lamp corresponding to the second photoelectric switch element. An LED lamp lights up; when the second photoelectric switch element is blocked by the blocking sheet, the second LED lamp lights up.

Further, a schematic circuit diagram of the photoelectric switch element is shown in FIG. 15. In an embodiment of the present application, the photoelectric switch element is equivalent to an optocoupler. When the tooling cover is opened, the barrier does not block the photoelectric switch element under normal circumstances. , OP1's 3 and 4 pins are in the conducting state, MOS tube Q1 is in the off state, the LED light is off, and S1 outputs high level; when the baffle is blocked by the photoelectric switch element, OP1's 3 and 4 pins are closed, MOS tube Q1 turns on the LED light and lights up at the same time S1 outputs low level. When the output is low, the tooling is in a stable state where the cover is fully opened. When the controller receives the signal sent by the photoelectric switch circuit board, it is determined that the cover is fully opened at this time, and the controller sends this information to the pick and place. The control device of the control mechanism controls the material ingestion head of the material taking and discharging control mechanism to take and discharge materials. It should be noted that although in this embodiment, the low level represents the open state of the cover and the high level represents the closed state of the cover, the application is not limited to this. In other embodiments, the low level can also be used to represent the cover. The body is closed, and the high level represents the open state of the cover.

Further, in an embodiment of the present application, the material loading position is suitable for loading electronic device functional modules. The electronic device function modules can be various consumer electronic terminal devices, such as smart phones, tablet computers, notebook computers, and so on. An electronic device functional module refers to a module that can be built into an electronic device to complete a specific function of the electronic device. For example, camera modules, structured light projection modules, TOF projection modules (where TOF is called Time of Flight), fingerprint recognition modules, and so on. These modules are usually small in size and inconvenient to be transported one by one in the production line. Usually, trays (or called product boxes) are used for batch loading, and then transported in the production line in units of the entire tray. Moreover, these modules usually need to have connectors, and the connectors usually have a relatively dense contact array for data exchange with the motherboard of the electronic device. Before leaving the factory, such modules usually need to be energized and factory tested to test product performance and eliminate defective products.

Further, according to an embodiment of the present application, there is also provided a material picking and unloading control device for tooling, including: the state detection device, the material intake head and the controller in any of the foregoing embodiments. Among them, the state detection device can refer to the foregoing description, and will not be repeated here. The material intake head is a component used for reclaiming or discharging materials in the tooling when the lid is opened. The controller is used to control the material ingestion head to move into or out of the upper area of the tooling and control the material ingestion head to carry out the loading and unloading actions according to the status signal used to characterize the completion of opening or closing the lid. For example, the controller is also used to control the material ingestion head to move into the upper area of the tooling after receiving the status signal for indicating that the lid is opened; and after receiving the state signal for indicating that the lid is closed After the status signal, the material intake head is prevented from moving into the upper area of the tooling.

Further, in an embodiment of the present application, in the state detection device, the opening and closing driving device is a cylinder driving device, and the opening and closing of the tooling 1001 is adjusted by adjusting the air flow injected into the cylinder driving device. Lid or close speed. The amount of gas passing into the cylinder is set by the control program, and the force and speed of the opening and closing of the cover 1200 of the tooling can be adjusted. In order to achieve the stability of material picking and discharging during the inspection process, it is necessary to set the opening and closing frequency of the cover 1200 of the tooling reasonably. If the opening and closing speed of the cover is set too fast, it is easy to cause damage to the cover; The frequency setting of body opening and closing is too slow, which 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 driving device is a cylinder driving device, and the maximum opening angle of the tooling is adjusted by adjusting the air flow injected into the cylinder driving device.

In an embodiment of the present application, the material picking and unloading control device for tooling may include the following operation steps:

Inject gas into the cylinder chamber located below the piston, so that the piston rod and the support rod move upward relative to the cylinder body, thereby driving the driven rod to move and opening the cover of the tooling (refer to Figure 11);

When the first blocking sheet blocks the first photoelectric switch element, the first photoelectric switch element sends a sensing signal to the controller;

The controller controls according to the received induction signal, stops the gas to the cylinder so that the piston rod and the support rod stop moving, and at the same time sends a take and discharge signal to the take and discharge control mechanism;

The material picking and unloading control mechanism moves to the tooling in a fully opened state according to the received picking and unloading signal to perform the picking and unloading operation, that is, taking out the tested camera module from the tooling and placing the camera module to be tested In tooling

After the material picking and unloading mechanism completes the loading and unloading operations, it moves back to the initial position and sends a signal for the completion of picking and unloading to the controller;

The controller performs control according to the received signal for completion of material removal and release, releases the gas in the cylinder chamber below the piston, and preferably can inject gas into the cylinder chamber above the piston to improve operation efficiency, so that the piston rod and The support rod moves downwards relative to the cylinder block, thereby driving the driven rod to move to close the cover of the tooling (refer to Figure 12);

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

The controller performs control according to the received induction signal, so that the module to be tested performs subsequent tests in the closed tooling.

It should be noted that in another embodiment, for the cylinder, the movement of the piston can also be realized by inflating one end (first end) of the piston and deflating the other end (second end); when the piston is required to reverse During the movement, the piston can be moved by inflating the second end and deflating the first end of the piston.

Further, according to an embodiment of the present application, there is also provided a module detection device, which may include: a material carrier, a detection module, and a material picking and unloading mechanism. The material carrier can be one or more, and each material carrier can include at least one openable and closeable tool for carrying the module and a state detection device adapted to the tool, wherein the module can be It is an electronic device function module. The meaning of the electronic device function module has been introduced in the previous article, so I won't repeat it here. The state detection device may be the state detection device in any of the foregoing embodiments, and its specific structure can be referred to the foregoing description, which will not be repeated here. The detection module is used to obtain the data output by the module mounted on the material carrier (for example, the image data output by the camera module. Under each inspection item, the camera module to be inspected will shoot the corresponding image ), and analyze and distinguish based on the acquired data (for example, image data), or send the acquired data (for example, image data) to the control center. The control center judges and processes the detected data according to the pre-set procedure, and obtains the detection result. 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 carrier, or to move the module from the material carrier to the material tray, and the material picking and unloading mechanism has a material intake head. , The material intake head is used for reclaiming or discharging materials in the tooling when the lid is opened. In an example, the loading and unloading mechanism may be the loading and unloading mechanism of the module detection equipment. In this embodiment, the opening and closing driving device of the state detection device adjusts the opening speed of the tooling by changing the driving force. In addition, when the tooling is in a state where the lid is opened, the picking and unloading mechanism and the modules taken by it can pass over the cover, and the picking and unloading mechanism is used to indicate whether the lid is opened or The state signal that the lid is closed is used to control the material intake head to move in or out of the upper area of the tooling.

Further, in one embodiment, the module detection equipment may have multiple material carriers and multiple detection modules adapted to it. Each material carrier and its adapted detection module form a detection device. Figure 17 shows a schematic top view of a module detection device in an embodiment of the present application. Referring to FIG. 17, in this embodiment, the module detection device 1000 may have four detection devices 110, and the four detection devices 110 may be distributed on a turntable 120. Specifically, the four detection devices 110 may be installed in the peripheral area of the turntable 120. The central area of the turntable can be provided with a cable storage structure 140. Each of the detection devices 110 includes a material carrier. The material carrier may include a mounting surface and at least one tool as described above. The tool includes a material carrier plate fixed on the mounting surface and a The cover is pivotally connected to the material carrier. The module testing equipment 1000 may also include a plurality of target modules 200, which are suitable for providing test light sources and targets for the electronic device functional modules mounted in the tooling as materials. The module detection device 1000 may also have a material changing mechanism 300. The material changing mechanism 300 includes a material intake head 310 suitable for moving materials and a guide rail 330. The material intake head 310 can move along the guide rail 330 to remove materials from the material tray 340. The material is transported to the material carrier of the detection device 110 or the material is transported from the material carrier of the detection device 110 to the material tray 340. In this embodiment, the refueling mechanism 300 has two material intake heads 310 and two corresponding guide rails 330. The refueling mechanism 300 and the multiple target modules 200 surround the turntable 120 to form at least one refueling station and a plurality of detection stations, and the turntable 1200 can drive the detection device 110 relative to The target module 200 and the refueling mechanism 300 rotate. The material changing mechanism 300 may be the material picking and unloading mechanism described above. In this embodiment, four detection devices are integrated in a single module detection equipment, and each requires a material carrier. In a large-scale inspection scenario, each material carrier needs to integrate multiple tools to provide multiple (for example, 16) material loading positions, and each tool needs a status detection device to achieve precise and efficient control . The state detection device and the material picking and unloading 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 an appropriate angle to ensure that the suction nozzle of the picking and unloading mechanism (or other forms of ingestion heads for the ingestion module) and its adsorbed The module will not collide with the cover of the tooling. In this embodiment, four detection devices are arranged on the periphery of the turntable, and the refueling mechanism and three target plate modules surround the turntable to form a refueling station (or called loading and unloading stations) and three detection devices. Work stations (may be referred to as the first inspection station, the second inspection station and the third inspection station, respectively). In the working state, place the module to be tested at the loading and unloading position, and place the module to be tested to the loading position through the rail transportation, and the suction nozzle sucks the module to the detection position and puts it in the open lid In the tooling, the cover of the tooling is automatically closed again. At this time, the inspection platform loaded with the module is turned over 90 degrees (the module to be tested is converted from the upward posture to the horizontal posture, and the 90-degree reversal can make the mounted The module faces the target module so that the target module can form a detection light path). Then, the turntable rotates so that the detection device enters the first detection station, and at the same time, the detection device located at the third detection station moves to the loading and unloading station along with the turntable. After reaching the loading and unloading station, the tooling cover of the detection device is automatically opened, and the suction nozzle will extract the detected modules and put them into the product box, put the modules to be tested into the tooling with the lid, and then start The next round of testing. In this embodiment, the detection device can realize the functions of loading and unloading and detection at the same time. It is a highly integrated detection device, which occupies a small space and has high detection efficiency, and is suitable for the production and manufacture of large-scale modules. During this process, the automatic opening and closing of the tooling cover is closely matched with the loading and unloading suction nozzles. When the clamp cover is opened, the suction nozzle performs the feeding action. When the clamp cover is closed, the suction nozzle stops the loading of the material. Return to the initial position and wait for the next round of loading. The cooperation between the suction nozzle and the clamp cover is mainly realized through the photoelectric switch adapter plate. The photoelectric switch transmits the sensed signal to the control center through the connection line, and the control center transmits this information to the driving device of the suction nozzle. Control the movement of the nozzle. Without contacting and occupying a large space of the equipment, the coordinated action of the clamp cover and the suction nozzle is realized, which improves the intelligence of the equipment, and at the same time reduces the dependence on manual opening and closing of the cover, which helps to improve the detection s efficiency.

The above description is only a preferred embodiment of the application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover the above technical features without departing from the inventive concept. Or other technical solutions formed by any combination of its equivalent features. For example, the above-mentioned features and the technical features disclosed in this application (but not limited to) with similar functions are interchanged to form a technical solution.

Claims

A material carrier suitable for automatic material change, which is characterized in that it comprises:

Mounting surface;

At least one tooling fixture, the tooling fixture includes a material carrier plate fixed on the mounting surface and a cover pivotally connected to the material carrier plate;

A light curtain device, which is adapted to generate 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; and

The material changing mechanism includes a material ingestion head that can perform lateral translation and lifting movements, wherein the lateral translation is a movement in which the moving direction is parallel to the mounting surface, and the lifting movement is a movement direction perpendicular to the mounting surface. The movement of the mounting surface, and in the process of moving the material into the area above the material carrier through the lateral translation and the process of moving the material out of the area above the material carrier, the material The ingestion head and its ingested materials are higher than the light curtain.
The material carrier according to claim 1, wherein the fixture has a plurality and is distributed on the mounting surface in an array.
The material carrier according to claim 1, wherein the material is a functional module of an electronic device to be tested.
The material carrier according to claim 3, characterized in that, after the opening action of each of the tooling fixtures of the material carrier is performed, the time interval before the material ingestion head performs the lifting movement, Whether to activate safety measures is determined according to whether the duration of the light curtain being blocked exceeds a threshold, and the safety measures include issuing an alarm and/or stopping the work of the refueling mechanism.
The material carrier according to claim 3, wherein the at least one tooling fixture is arranged in two rows, the tooling fixture has a rotating pivot, and the rotating pivot is located near the edge of the material carrier One side.
The material carrier according to claim 3, wherein the opening angle of the fully opened lid preset by the tooling fixture is in the range of 145°-162°.
The material carrier according to claim 5, wherein the material carrier further comprises a cover driving mechanism adapted to drive the cover to rotate around the rotation pivot.
The material carrier according to claim 7, wherein 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 and the cylinder The piston is connected and can reciprocate under the driving of the piston, one end of the driven rod is movably connected with the cylinder rod, and the other end is connected with the cover body.
The material carrier according to claim 8, wherein the cover has a root close to the rotation pivot and an end far away from the rotation pivot, the root has a protruding structure, and the The moving rod is connected to the cover body through the protrusion structure.
The material carrier according to claim 9, wherein the air cylinder is located below the material carrier plate, the material carrier plate has an escape hole adapted to the protruding structure, and the escape hole Allow the driven rod to pass through.
The material carrier according to claim 8, wherein, for a single fixture, the rotation pivot includes a first section and a second section, and the first section and the second section There is a gap between the segments, and the driven rod can pass through the gap when the tooling jig is opened.
The material carrier according to claim 8, wherein the material carrier further comprises: a position recognition sensor for recognizing the position of the cylinder rod, and the refueling mechanism recognizes the position of the sensor according to the position The identified position information is used to start or stop the lateral translation of the material ingestion head.
The material carrier according to claim 12, wherein the position recognition sensor is a magnetic sensor or a photoelectric sensor.
The material carrier according to claim 3, wherein the electronic device function module is a camera module, the cover has a through hole that matches the outer periphery of the lens of the camera module, and the The cover body covers parts other than the lens of the camera module after the cover is closed.
The material carrier according to claim 3, wherein the material changing mechanism further comprises:

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 intake head is installed on the guide rail and can move horizontally along the guide rail.
The material loading platform according to claim 8, wherein each of the tooling fixtures has at least two material loading positions.
The material carrier according to claim 8, wherein a contact array is provided in the material carrier, and the contact array is connected to the electronic device function module mounted in the tooling fixture After the cover is closed, the cover body presses the electronic device function module under the action of the driving mechanism, so that the connector is in close contact with the contact array.
An automatic module detection equipment, which is characterized in that it comprises:

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 tooling fixture, the tooling fixture includes a material carrier plate fixed on the mounting surface and and The cover pivotally connected to the material carrier;

A turntable, the plurality of detection modules are installed in the peripheral area of the turntable;

A plurality of target board modules, which are suitable for providing test light sources and targets for the electronic device function modules mounted in the tooling and fixtures as materials; and

A refueling mechanism, which includes a material intake head suitable for moving materials, the refueling mechanism and the plurality of target plate modules surround the turntable to form at least one refueling station and a plurality of test stations, and The turntable can drive the detection module to rotate relative to the target module and the refueling mechanism;

Wherein, the refueling station is provided with 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 that of the tooling when the cover is fully opened. Clamp; and, during the horizontal translation of the material intake head, the material intake head and the material it takes are always higher than the light curtain.
The module automatic inspection equipment according to claim 18, wherein the automatic inspection equipment has a base, the turntable is rotatably installed on the base, and the light curtain device is fixed on the base Or the light curtain device is fixed to a reference surface through an intermediary.
The automatic module detection device according to claim 18, wherein the detection module can be turned by 90° so that it can be switched between a horizontal attitude and a vertical attitude, and when the detection module is in a horizontal attitude The refueling mechanism can refuel the detection module, and when the detection module is in a vertical posture, the detection module is suitable for executing a test item.
The module automatic inspection equipment according to claim 20, characterized in that, the automatic inspection equipment further comprises a control device, which is used to control the rotation of the turntable and move a plurality of the inspection modules to the refueling worker in turn. And each test station; and for any one of the detection modules, when the detection module is moved to the refueling station, the detection module is turned over to a horizontal posture, and then all the tooling of the detection module is controlled Open the cover of the clamp, control the material change mechanism to complete the material change of the detection module, and control all the tooling and fixtures of the detection module to close the cover, then flip the detection module to the vertical posture, and finally control the The rotation of the turntable moves the detection module to each test station in turn to perform various tests.
The material carrier according to any one of claims 1-17, wherein the carrier has at least one material carrying position, and the material carrier further comprises a state detection device;

The state detection device includes:

An opening and closing driving device, which includes a moving part and a stationary part, the moving part is connected with the cover body and used to drive the cover body to open and close the cover;

A baffle, which is installed on the moving part; and

A photoelectric switch circuit board, which includes a circuit board and a photoelectric switch element, the back of the circuit board is mounted on the stationary component, the photoelectric switch element is mounted on the front of the circuit board, and the baffle can follow the movement The component moves to the position where the photoelectric switch element is located and shields the photoelectric switch element, and the circuit board outputs a status signal when the photoelectric switch element is shielded, and the status signal is used to indicate the completion of opening or closing .
The material carrier according to claim 22, wherein the opening and closing driving device is an air cylinder driving device.
The material carrier according to claim 22, wherein the stationary part comprises a cylinder, and fluid can be injected and discharged from the cylinder; the moving part comprises a piston and a transmission mechanism, wherein the piston is located at the The inside of the cylinder; 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.
The material carrier according to claim 24, wherein the transmission mechanism further comprises a crank connecting rod located outside the cylinder, the crank connecting rod is used to drive the tooling to open and close, and the crank connecting rod One end of the rod is fixed to the piston rod, and the other end is connected to the cover.
The material carrier according to claim 25, wherein the baffle is installed on the crank connecting rod.
The material carrier according to claim 25, wherein the crank connecting rod comprises 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 connected to the follower rod. The moving rod is pivotally connected, one end of the driven rod is pivotally connected to the support rod, and the other end is connected to the cover.
The material carrier according to claim 27, wherein the baffle is installed on the support rod.
The material carrier according to claim 22, wherein the photoelectric switch element comprises a first photoelectric switch element and a second photoelectric switch element, and when the blocking sheet shields the first photoelectric switch element, the photoelectric switch element The circuit board outputs a state signal used to characterize the completion of lid opening, and when the blocking sheet blocks the second photoelectric switch element, the circuit board outputs a state signal used to characterize the completion of lid closing.
The material carrier according to claim 29, wherein the baffle includes a first baffle for shielding the first photoelectric switch element and a second baffle for shielding the second photoelectric switch element. sheet.
The material carrier according to claim 22, wherein the cover is pivotally connected to the carrier.
The material carrier according to claim 27, wherein the stopper has a strip-shaped mounting hole, and a fastener passes through the strip-shaped mounting hole to fix the stopper to the support rod, and The installation position of the baffle is adjustable within the range of the strip-shaped installation hole.
The material carrier according to claim 27, wherein the support rod comprises a base and an upright rod installed on the base, the bottom end of the piston rod is fixed to the base, and the baffle is installed on The uprights.
The material carrier according to claim 33, wherein the movement direction of the piston is parallel to the vertical rod.
The material carrier according to claim 33, wherein the vertical rod, the base and the piston rod are arranged in a U-shape.
The material carrier according to claim 35, wherein the baffle includes a mounting part and a shielding part, the root of the mounting part bears and is fixed to the support rod, and the end of the mounting part is transversely Extending to the outside of the support rod, the shielding part is located at the end of the mounting part; the photoelectric switch element includes a transmitting end and a receiving end, and the shielding part can move to the transmitting end along with the moving part And the gap between the receiving end.
The material carrier according to claim 27, wherein the cover has a raised structure at the root, and the driven rod is connected to the cover through the raised structure, wherein the cover The body and the carrier are pivotally connected by a pivot, and the root is a part of the cover close to the pivot.
The material carrier according to claim 22, wherein an LED lamp is provided on the photoelectric switch circuit board, and the LED lamp lights up when the blocking sheet blocks the photoelectric switch element.
The material carrier according to claim 22, wherein the material carrier further comprises an automatic material picking and unloading control device, characterized in that the automatic material picking and unloading control device comprises:

The state detection device;

Material intake head, which is used to take material or discharge material in the tooling fixture that opens the lid; and

The controller is used to control the material intake head to move into or out of the upper area of the tooling according to the state signal used to indicate the completion of opening or closing.
The material carrier according to claim 39, wherein the controller is further configured to control the material ingestion head to move into the upper area of the tooling after receiving the status signal for indicating the completion of opening the lid; And after receiving the status signal for indicating the completion of closing the lid, the material intake head is prevented from moving into the upper area of the tooling.
The material carrier according to claim 39, wherein in the state detection device, the opening and closing driving device is a cylinder driving device, and the opening and closing of the tooling is adjusted by changing the driving force of the cylinder driving device. Lid or close speed.