CN112770103A

CN112770103A - Material carrying platform suitable for automatic material changing and corresponding automatic module testing equipment

Info

Publication number: CN112770103A
Application number: CN201911059492.0A
Authority: CN
Inventors: 潘家威; 林志成; 张民奇; 周超
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2021-05-07
Anticipated expiration: 2039-11-01
Also published as: CN112770103B

Abstract

The invention relates to a material carrying platform suitable for automatic material changing, which comprises: the device comprises an installation surface, at least one tool clamp, a light curtain device and a material changing mechanism, wherein the tool clamp comprises a material support plate fixed on the installation surface and a cover body connected with the material support plate through a pivot; the light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the tooling clamp in the fully opened state of the cover body; the material changing mechanism comprises a material taking head which can do transverse translation and lifting motion, and the material taking head and the taken materials are higher than the light curtain in the process of moving the materials into the area above the material carrying table through the transverse translation and in the process of moving the materials out of the area above the material carrying table. The invention also provides corresponding automatic module testing equipment. The application can remarkably reduce the failure rate of the equipment, can reduce the moving distance and time required by feeding and discharging materials, can reduce the occupied space and can make the equipment more compact.

Description

Material carrying platform suitable for automatic material changing and corresponding automatic module testing equipment

Technical Field

The application relates to industrial automation technology, in particular to a material carrying platform suitable for automatic material changing and corresponding automatic module testing equipment.

Background

At present, the camera module has been widely applied to the field of consumer electronics terminals (such as smart phones, tablet computers, notebook computers, etc.), becomes an indispensable part in the life of people, and has a wide market prospect. The camera module is a small and precise product, and precise processing is required in the production process. In the early stage of the industry, the camera module industry has spent a long term mainly by purchasing a small amount of foreign production equipment and combining a large amount of manpower. And, along with intelligent terminal's popularization, the module industry of making a video recording has come a high-speed development stage. In this period, small module factories with small quantity and immature technology are gradually eliminated, and some module factories with mature technology and large quantity are left. The module factories digest a large amount of module orders in domestic markets, the production volume of the orders can reach the level of millions or even tens of millions, the defect of excessive dependence on manpower production is more and more obvious when the order reaches the level, and the semi-automatic or automatic production of mechanical equipment is a necessary trend.

The semi-automatic or automatic production is realized by first needing the support of corresponding production equipment, and the equipment can be obtained by two modes of self-research and external purchase. The externally purchased equipment is high in price on one hand, cannot completely meet the production requirements of purchasers due to production reasons (such as secrecy in some production processes) and the like on the other hand, and the self-developed equipment can be designed according to the production requirements so as to improve the production efficiency.

The application mainly relates to a camera module detection device. The module detection of making a video recording is an indispensable ring in the module production of making a video recording. The camera module inspection apparatus (hereinafter, simply referred to as module inspection apparatus) also faces a significant problem of how to improve the production efficiency. Early module inspection equipment typically had a dedicated inspection equipment for each test session (i.e., each test). Under the development idea of integration, more and more module detection equipment integrates a plurality of testing links, and some module detection equipment can integrate all testing links even, namely, all tests are completed by using single equipment. On the other hand, for improving production efficiency, some module test equipment have adopted array detection scheme, and a target corresponds to the module array of making a video recording that a plurality of modules of making a video recording are constituteed promptly, and this test link can once only test a plurality of modules of making a video recording like this to show promotion production efficiency. Moreover, some module test equipment still further will make a video recording the unloading link integration of module in module test equipment to further improve the integrated level of equipment.

Although the prior art has adopted many techniques to improve the module inspection apparatus, the existing module inspection apparatus has many disadvantages to be further improved.

For example, in an integrated module inspection apparatus, each functional module is densely arranged in a compact space. Theoretically, this helps to increase the yield per unit area. However, this design also results in inconvenient maintenance of the device. When equipment trouble, the maintainer will spend more time just can make module check out test set resume production. Therefore, if considering the production interruption time due to the failure, the yield per unit area of the entire excessively integrated module inspection apparatus may not be optimal.

For another example, the camera module is a precise optical device, and the test equipment is often required to provide better protection for the camera module during testing, so as to prevent the image quality of the camera module from being reduced or even scrapped due to collision, contamination or other reasons. Therefore, the module carrying platform of the testing equipment is usually required to cover the camera module. However, in an automatic production scenario, the cover and the mechanism for moving the cover may need to occupy more space, which adversely affects the miniaturization of the device.

For another example, the camera module carrying platform in the test equipment and the loading and unloading mechanism are compactly configured, which may help to reduce the stroke of module loading and unloading, thereby helping to improve the production efficiency. However, the cover body for protecting the camera module needs to be frequently opened and closed, and if the loading and unloading mechanism is too close to the carrying platform of the camera module, collision may occur in the loading process, so that equipment is stopped. Meanwhile, the collision brings great inconvenience to maintenance work. How to balance the factors is a big problem in the field, and designing equipment which can reduce the failure rate and has the advantages of miniaturization, high production efficiency and the like.

Further, for other materials similar to the camera module (for example, a structured light projection module, a fingerprint module, etc. in a mobile phone), the above problems may also be encountered when the automation equipment in the detection link or the production link faces a series of problems such as equipment miniaturization and production efficiency improvement.

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

Disclosure of Invention

It is an object of the present invention to overcome the drawbacks of the prior art and to provide a solution for a material carrier suitable for automatic reloading that contributes to the miniaturization of the plant.

Another object of the present invention is to overcome the disadvantages of the prior art, and to provide a solution for a miniaturized automatic test equipment for camera modules.

In order to solve the technical problem, the invention provides a material carrying platform suitable for automatic material changing, which comprises: a mounting surface; the tool clamp comprises a material support plate fixed on the mounting surface and a cover body connected with the material support plate in a pivot manner; the light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the tooling clamp in the fully opened state of the cover body; and the material changing mechanism comprises a material taking head, the material taking head can perform transverse translation and lifting motion, the transverse translation is motion with the moving direction parallel to the mounting surface, the lifting motion is motion with the moving direction perpendicular to the mounting surface, and in the process of moving the material into the area above the material carrying platform through the transverse translation and in the process of moving the material out of the area above the material carrying platform, the material taking head and the taken material are both higher than the light curtain.

The tool fixtures are provided with a plurality of mounting surfaces, and are distributed in the array mode.

The material is an electronic equipment functional module to be detected.

And determining whether to start safety measures according to whether the duration time of the shielding of the light curtain exceeds a threshold value or not in a time interval after the cover opening action of each tool clamp of the material carrying table is finished and before the material intake head executes the lifting motion, wherein the safety measures comprise alarming and/or stopping the work of the material changing mechanism.

The at least one tooling clamp is arranged in two rows, the tooling clamps are provided with rotating pivots, and the rotating pivots are positioned on one side close to the edge of the material carrying platform.

The cover opening angle of the completely opened cover preset by the tool clamp is in the range of 145-162 degrees.

The material carrying platform further comprises a cover body driving mechanism which is suitable for driving the cover body to rotate around the rotating pivot.

The cover body driving mechanism comprises a cylinder and a crank connecting rod, the crank connecting rod comprises a cylinder rod and a driven rod, the cylinder rod is connected with a piston of the cylinder 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 of the driven rod is connected with the cover body.

Wherein the cover has a root portion near the pivot axis and an end portion away from the pivot axis, the root portion having a boss structure through which the driven lever is connected to the cover.

Wherein, the cylinder is located the below of material carrier plate, the material carrier plate have with the hole of dodging of protruding structure adaptation, and the hole of dodging allows the driven lever passes.

Wherein, for a single said tooling fixture, said pivot shaft includes a first segment and a second segment with a gap therebetween, and said follower link is passable through said gap in a state where said tooling fixture is uncapped.

Wherein, the material microscope carrier still includes: a position identification sensor for identifying a position of the cylinder rod, the refueling mechanism initiating or halting lateral translation of the material intake head based on the identified position information.

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

The electronic equipment functional module is a camera module, the cover body is provided with a through hole matched with the periphery of the lens of the camera module, and the cover body covers the part outside the lens of the camera module after being closed.

Wherein, the mechanism of reloading still includes: a support table; the guide rail is arranged on the support platform, and one part of the guide rail extends to the outside of the support platform and is arranged above the material carrying platform; wherein the material intake head is mounted to the guide rail and is laterally translatable along the guide rail.

Wherein, every frock clamp has two material and carries on the position.

The contact array is arranged in the carrier plate and matched with a connector of the camera module carried in the tool clamp, and 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.

According to another aspect of the present invention, there is also provided an automatic module detection apparatus, including: the detection device comprises a plurality of detection modules, a plurality of detection modules and a plurality of control modules, wherein each detection module comprises a material loading platform, each material loading platform comprises an installation surface and at least one tool clamp, and each tool clamp comprises a material support plate fixed on the installation surface and a cover body connected with the material support plate through a pivot; the detection modules are arranged on the peripheral area of the turntable; the target board modules are suitable for providing a testing light source and a target object for the electronic equipment functional module which is taken as a material and carried in the tool clamp; the material changing mechanism and the plurality of target modules form at least one material changing station and a plurality of testing stations around the rotary table, and the rotary table can drive the detection module to rotate relative to the target modules and the material changing mechanism; the work fixture comprises a cover body, a material changing station, a material feeding device, a material discharging device and a material discharging device, wherein the material changing 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 work fixture in a fully opened state of the cover body; and in the process of the transverse translation of the material taking head, the material taking head and the materials taken by the material taking head are always higher than the light curtain.

The automatic detection equipment is provided with a base, the turntable is rotatably arranged on the base, and the light curtain device is fixed on the base or fixed together with the base through an intermediary; or the light curtain device is fixed on a reference surface through an intermediary object.

The detection module can be turned over by 90 degrees, so that the detection module can be switched between a horizontal posture and a vertical posture, when the detection module is in the horizontal posture, the material changing mechanism can change materials for the detection module, and when the detection module is in the vertical posture, the detection module and the target module can jointly complete a test project.

The automatic detection equipment also comprises a control device, a material changing station and each test station, wherein the control device is used for controlling the rotary disc to rotate and sequentially moving the detection modules to the material changing station and each test station; and for any one detection module, after the detection module moves to the material changing station, the detection module is turned to a horizontal posture, then all the tooling fixtures of the detection module are controlled to open the cover, the material changing mechanism is controlled to complete the material changing of the detection module, all the tooling fixtures of the detection module are controlled to close the cover, the detection module is turned to a vertical posture, and finally the turntable is controlled to rotate to move the detection module to each test station in sequence for each test.

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

1. the material microscope carrier of this application can be through setting up the fault rate that safe light curtain reduces equipment remarkably.

2. The material carrying platform can reduce the moving distance and time required by material loading and unloading while reducing the failure rate of equipment, thereby ensuring higher production efficiency.

3. The material carrying platform is compact in structure and beneficial to reducing the occupied space of the material carrying platform.

4. The material microscope carrier of this application is applicable to and carries out high-efficient the detection to large batch module of making a video recording.

5. The utility model provides a module check out test set that makes a video recording compact structure, area is little, helps the unit area output rate of lifting means. The camera module is usually required to be manufactured in a highly clean environment, so the factory cost (e.g. the equipment cost for providing a clean environment) is often higher than that of a general product. Therefore, the yield per unit area of the equipment is improved, and the production cost of the camera module is greatly reduced.

6. The utility model provides a module check out test set integrated level that makes a video recording is high, has very high production efficiency.

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

8. The camera group detection equipment can perform synchronous detection on a plurality of camera modules at every time (at least 16 modules can be detected simultaneously), and large-batch large-scale production is met.

9. The application of module check out test set can realize unloading and automated inspection in the automation, can in time report to the police when breaking down, and the intelligent of the module of very big realization detects, has reduced the degree of dependence to operating personnel.

Drawings

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

FIG. 2 illustrates a perspective block diagram of a rotary testing mechanism in one embodiment of the present application;

FIG. 3 is a schematic perspective view illustrating a position relationship between a detection module and a light curtain device in an embodiment of the present application;

FIG. 4 is a schematic top view illustrating a position relationship between a detection module and a light curtain device in one embodiment of the present application;

fig. 5 shows a schematic view of the safety protection principle based on the light curtain device in one embodiment of the present application;

FIG. 6 is a schematic perspective view of a single tooling fixture and its drive mechanism at a first angle in a closed position according to one embodiment of the present application;

FIG. 7 is a perspective view of a single tooling fixture and its drive mechanism at a second angle in a closed position according to one embodiment of the present application;

FIG. 8 is a schematic perspective view of a single tooling fixture and its drive mechanism at a first angle in an open lid configuration according to one embodiment of the present application;

figure 9 illustrates a perspective view of a single tooling fixture and its drive mechanism at a second angle in an open lid configuration, in one embodiment of the present application.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that the expressions first, second, etc. in this specification are used only to distinguish one feature from another feature, and do not indicate any limitation on the features. Thus, a first body discussed below may also be referred to as a second body without departing from the teachings of the present application.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "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," "about," and the like are used as terms of table approximation and not as terms of table degree, and are intended to account for inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.

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

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 1 shows a schematic top view of an integrated camera module automatic test equipment according to an embodiment of the present application. Referring to fig. 1, in the present embodiment, an automatic test apparatus 1000 includes a rotary testing mechanism 100, and a plurality of (e.g., three) target modules 200 and a feeding mechanism 300 (which may also be referred to as a loading and unloading mechanism) surrounding the rotary testing mechanism. Wherein, rotation type accredited testing organization can set up four stations, and three of them are the test station, and one is for going up the unloading station, reloads the station promptly. Each reticle 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 testing module 110 can sequentially reach each station to combine with each target module 200 disposed around the rotary testing mechanism to complete each test. The target module 200 may have a separate base frame and housing (mainly suitable for a target module for long-distance and medium-distance tests with a larger volume), or may be directly mounted on the base frame 150 (refer to fig. 2) of the rotary testing mechanism 100 and share the same housing with the rotary testing mechanism 100 (mainly suitable for a target module for short-distance tests with a smaller volume). Further, fig. 2 shows a perspective view of a rotary testing mechanism in an embodiment of the present application. Referring to fig. 2, in the present embodiment, the rotary testing mechanism 100 includes a turntable 120, a plurality of racks 130, and a plurality of detection modules 110. The plurality of brackets 130 are disposed at the peripheral region of the turntable 120, each bracket 130 mounts one of the detection modules 110, and the front surface of each detection module 110 is vertical and disposed outward in the detection state (refer to the detection module 110b located at the lower right in fig. 2), that is, the front surface of the detection module 110 faces the target module in the detection state (the target module is not shown in fig. 2). In a non-detection state, for example, a refueling state, the front side of the detection module 110 may face upward (see the detection module 110a located at the upper left in fig. 2). Further, fig. 3 is a schematic perspective view illustrating a positional relationship between the detection module and the light curtain device in an embodiment of the present application, and fig. 4 is a schematic top view illustrating a positional relationship between the detection module and the light curtain device in an embodiment of the present application. Referring to fig. 3 and 4 (which only schematically show main components), and referring to fig. 2, in this embodiment, the detection module 110 includes a material stage 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 cover state of the tool holder 113 is shown in fig. 5. Referring to fig. 5, the material carrying platform 111 includes a mounting surface 112 and at least one tooling fixture 113, where the tooling fixture 113 includes a material carrying plate 114 fixed on the mounting surface 112 and a cover 115 pivotally connected to the material carrying plate 114. The target module 200 is suitable for providing a test light source and a target object for a camera module which is loaded in the tool clamp 113 as a material. The material changing mechanism 300 includes a material intake head 310 adapted to move material, the material changing mechanism 300 and the plurality of target modules 200 form at least one material changing station and a plurality of testing stations around the turntable 120, and the turntable can drive the detecting module 110 to rotate relative to the target modules 200 and the material changing mechanism 300. Wherein, a light curtain device 400 is arranged at the material changing 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 the frock clamp 113 in the state that the cover body 115 is completely opened. And during the process of the material intake head 310 moving laterally (here, the lateral translation refers to the process of moving the material into the area above the material carrier and the process of moving the material out of the area above the material carrier), the material intake head 310 and the material intake by it are always higher than the light curtain. After the cover opening action of each tool clamp of the material carrying table is finished, before the material intake head executes the lifting motion, whether safety measures are started or not can be determined according to whether the duration time of the continuous shielding of the light curtain exceeds a threshold value or not. The safety measures may comprise that the light curtain device gives an alarm and/or stops the operation of the refueling mechanism. In actual work, the light curtain device may be always in an on state in the whole detection process, the control program determines whether the current time is in a time interval after the cover opening operation of each tool clamp is completed and before the material pickup head performs the lifting motion, if the determination is yes, a signal of the light curtain device is read, if the light curtain is continuously shielded, it may be considered that a part of the components of the material carrier may be abnormal (for example, the cover 115 of the tool clamp 113 may be in an abnormal state with incomplete opening), and at this time, the light curtain device may issue an alarm and/or stop the work of the material changing mechanism, so as to avoid collision between the material picked up by the material changing mechanism or the material changing mechanism and the material carrier. The material carrying platform has the advantages of being small in size, high in reliability, high in material changing efficiency and the like, and is particularly suitable for highly integrated automatic test equipment. Particularly, in this embodiment, through setting up safe light curtain, can be guaranteeing not under the prerequisite of colliding, the guide rail height that will reload the mechanism drops to the position that is closer to the material microscope carrier to reduce the required stroke of unloading on the material, ensure higher production efficiency.

Further, in an embodiment of the present application, the material intake head 310 can perform a lateral translation and a lifting motion, where the lateral translation is a motion with a moving direction parallel to the mounting surface, and the lifting motion is a motion with a moving direction perpendicular to the mounting surface. In an xyz rectangular coordinate system, the lateral translation may be a movement in the x-axis and y-axis directions, and the lifting motion may be a movement in the z-axis direction. In some embodiments, the lateral translation may further include rotation in the xy plane (i.e., rotation about the z axis) to better achieve alignment of the camera module with the material carrier plate. The material intake head 310 may be a suction nozzle having a suction capability to suck the material, or may be a clamp capable of clamping the material. It should be noted that the clamp is generally a clamp composed of two clamping arms, which can clamp the material from two sides to move the material, and is different from the tool clamp in two different concepts.

Further, still referring to fig. 1, in one embodiment of the present application, the reloading mechanism 300 may comprise a support table 320, a guide rail 330 and a material intake head 310. A portion of the guide 330 is mounted to the support stage 320, and another portion extends outside the support stage 320 and is disposed above the material stage 110. The material pick-up head 310 is mounted to the guide 330 and can translate laterally along the guide 330 (note that lateral refers to a direction of movement parallel to the mounting surface of the material stage 110). The guide 330 mounted to the support table 320 may be a y-axis guide to which the material pick-up head 310 may be slidably coupled via a slider. The slider may further be provided with an x-axis guide to allow the material pick-up head 310 to translate laterally in another degree of freedom. The material intake head can also realize lifting motion, namely z-axis motion, through the lifting cylinder. During loading, the material intake head 310 can take material from the tray area 340, move along the guide rail 330 to above the material carrying platform 111, and then discharge the material. During discharging, the material intake head 310 can take material from the material carrying platform of the detection module 110, move along the guide rail 330 to above the material tray area 340, and then discharge the material. In practical operation, the material intake head 310 may perform the unloading process first and then perform the loading process, so as to smoothly complete the material exchange of the single material carrier 111. The tray zone 340 may arrange one or more trays. When a plurality of trays are arranged, the trays for bearing untested modules and the trays for bearing tested modules can be arranged respectively. Furthermore, the material tray bearing the tested module can be further divided into a material tray bearing good products and a material tray bearing defective products.

Further, still referring to fig. 2, fig. 3, fig. 4, and fig. 5, in an embodiment of the present application, each material stage 111 may have a plurality of tooling fixtures 113, and the tooling fixtures 113 may be distributed in an array on the mounting surface 112. Like this, every material microscope carrier 111 can carry on a plurality of modules of making a video recording and test simultaneously to show promotion production efficiency.

Further, with reference to fig. 2, 3, 4, and 5 in combination, in an embodiment of the present application, for the material stage 111, the plurality of tooling clamps 113 may be arranged in two rows, the tooling clamps 113 may have a rotation pivot, and the rotation pivot is located at a side near an edge of the material stage. That is, the cover bodies 115 of the two rows of tooling fixtures 113 are opened outwards, and the design can reduce the occupied space of the material carrying platform 111 (in a cover closing state), thereby being beneficial to the miniaturization of equipment. Note that, in fig. 4, the upper row of the tooling clamps 113 is in a closed state, and the lower row of the tooling clamps 113 is in an open state.

Further, in one embodiment of the present application, the automatic detection apparatus has a base frame, the turntable 120 is rotatably mounted on the base frame, and the light curtain device 400 is fixed on the base frame or fixed with the base frame through an intermediary (e.g., a support column). In other embodiments, the light curtain device may be fixed to the reference surface through an intermediary. The reference surface may be, for example, the ground, or a horizontal work 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 fig. 5, the cover 115 and the material carrier 114 after the tooling fixture 113 is completely opened (i.e. after the tooling fixture is completely opened) have an included angle, which may be referred to as an opening angle (the material carrier 114 bears against the mounting surface 112, so the opening angle may also be understood as an included 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, and at this time, the opening angle may also be understood as an included angle between the cover 115 and a horizontal plane). This design uncap angle may be 160 °. In this embodiment, in the process of the transverse translation of the material pickup head (not shown in fig. 5), the camera module picked up by the material pickup head is 5mm away from the light curtain (note that, the application is not limited thereto). This height can be achieved by a corresponding arrangement of the guide rails of the change mechanism and the material pick-up head. It is noted that in practice the light sheet has a certain thickness (e.g. 1mm), where 5mm from the light sheet means 5mm from the upper surface of the light sheet, i.e. the upper limit position. In this embodiment, in a state where the cover is completely opened, a highest point of the fixture is 10mm away from the light curtain (note that, the application is not limited thereto). By 10mm from the light curtain is here meant 10mm from the lower surface (i.e. 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 (i.e., in a completely uncapped state), and the highest point may also be located in other structures of the tooling fixture. As described above, after the cover opening operation of each tool clamp of the material carrying table is completed and before the material pickup head performs the lifting motion, whether to start a safety measure is determined according to whether the duration of the continuous shielding of the light curtain exceeds a threshold, where the safety measure may include that the light curtain device sends an alarm and/or stops the work of the material changing mechanism. In actual work, the light curtain device can be always in a connected state in the whole detection process, a control program judges whether the current time interval is after the cover opening action of each tool clamp is finished and before the material intake head executes the lifting motion, if so, a signal of the light curtain device is read, if the light curtain is continuously shielded, part of components of the material carrying platform can be considered to be abnormal (for example, a cover body of the tool clamp is incompletely opened), and at the moment, the light curtain device can send an alarm and/or stop the work of the material changing mechanism so as to avoid collision between the material intake by the material changing mechanism or the material changing mechanism and the material carrying platform. Fig. 5 shows a malfunction caused by incomplete opening of the door. Referring to fig. 5, after the cover opening operation of the tooling fixture is completed, the cover opening angle of the tooling fixture on the right side is only 144 ° and does not reach the design value of 160 °. At this time, the cover blocks the light curtain 410, resulting in the light curtain emitting a signal. When the signal continuously exists, the tool clamp can be judged to be abnormal (for example, the cover body of the tool clamp is not completely opened). In this embodiment, the cover opening and closing actions of the tooling clamp 113 need to be driven by a driving mechanism, and due to various factors such as tolerance and the like, the risk of incomplete cover opening always exists (for example, incomplete cover opening caused by insufficient power of the driving mechanism may occur). If the prevention is not taken, the material changing mechanism or the materials collide with the cover body. Such collisions may cause damage to the equipment or the accuracy of the equipment is severely affected. After the light curtain device of the embodiment is installed, the collision problem can be effectively avoided. It should be noted that due to various factors such as external disturbance, the material loading platform and the material changing mechanism may be misaligned (which is often difficult to observe by naked eyes), and the material changing mechanism or the material collides with the cover body due to the misalignment. Such collision can be effectively avoided by installing the light curtain device of the present embodiment. Note that the preset door opening angle (fully open door opening angle) is not limited to 160 ° in the present application, and in other embodiments, the door opening angle may be set at 145 ° to 162 °.

Further, the material carrying platform also comprises a cover body driving mechanism which is suitable for driving the cover body to rotate around the rotating pivot. Figure 6 illustrates a perspective view of a single tooling fixture and its drive mechanism at a first angle in a closed position, according to one embodiment of the present application. Figure 7 is a perspective view of a single tooling fixture and its drive mechanism at a second angle in a closed position according to one embodiment of the present application. Figure 8 illustrates a perspective view of a single tooling fixture and its drive mechanism at a first angle in an open lid configuration, according to one embodiment of the present application. Figure 9 illustrates a perspective view of a single tooling fixture and its drive mechanism at a second angle in an open lid configuration, in one embodiment of the present application. Referring to fig. 6-9, in this embodiment, the cover driving mechanism may include a cylinder 118 and a crank link 119, the crank link 119 includes a cylinder rod 119a and a driven rod 119b, and the cylinder rod 119a is connected to the piston of the cylinder 118 and driven by the piston to reciprocate. Specifically, the piston may have a piston rod 119c, and the piston rod 119c may be fixed to the bottom of the cylinder rod 119 a. Thus, the cylinder rod 119a can reciprocate (e.g., linearly reciprocate) relative to the cylinder body of the cylinder 118 under the driving of the piston, that is, the cylinder rod 119a can be raised and lowered relative to the cylinder body of the cylinder 118. One end of the driven rod 119b is movably connected with the cylinder rod 119a, and the other end is connected with the cover body. In this embodiment, the cover has a root portion near the rotation pivot 117 and an end portion far from the rotation pivot 117, the root portion has a boss structure 115a, and the driven lever 119b is connected to the cover 115 through the boss structure 115 a. For a single tooling fixture, the pivot shaft 117 may be split into two sections (i.e., pivot shaft 117 may include a first section 117a and a second section 117b, see fig. 7), and the two sections (first section 117a and second section 117b) may have a gap 117c therebetween to form an escape zone that allows the driven rod 119b to pass through (see fig. 8). The cylinder 118 may be located below the material carrier plate 114, the material carrier plate 114 has an avoiding hole 114a (or referred to as an avoiding groove) adapted to the protrusion structure 115a, and the avoiding hole 114a allows the driven rod 119b to pass through. The design can avoid mutual interference between the cover body driving mechanism and the material replacing mechanism, the space utilization rate is high, and the size of the detection module is favorably reduced.

Further, in an embodiment of the present application, the material loading platform further comprises a position identification sensor for identifying a position of the cylinder rod (i.e. for identifying a relative position of the cylinder rod with respect to the cylinder block), and the material change mechanism starts or stops the lateral translation of the material intake head according to the identified position information. Therefore, the reloading mechanism avoids the uncovering process of the tool clamp according to the identified position information of the cylinder rod. Avoiding collision in the cover opening process. By means of the design, the track for transverse translation of the intake head of the reloading mechanism can be arranged at a lower position, so that the working efficiency is improved. The position recognition sensor is a magnetic sensor or a photoelectric sensor.

Further, still referring to fig. 6 to 9, in an embodiment of the present application, in the material carrying platform, the cover 115 has a through hole 115b adapted to an outer periphery of the lens of the camera module, and the cover covers a portion outside the lens of the camera module after covering.

Further, still referring to fig. 8, in an embodiment of the application, in the material loading platform, each of the tooling fixtures 113 has two camera

module carrying positions

113a and 113 b. Each of the carrier plates 114 is adapted to carry two of the camera modules, and each of the cover plates 115 also has two camera

module adapting structures

115c and 115d, so as to fix the two camera modules after the cover is closed. And each air cylinder is suitable for driving the opening and closing of one tool clamp. Therefore, for the scheme that every frock clamp carries on a module of making a video recording, the figure that this kind of design of this embodiment can reduce the cylinder is favorable to reducing the volume that actuating mechanism occupy, still can keep higher lid rate of opening and shutting and lower fault rate simultaneously.

Further, in an embodiment of the present application, a contact array may be disposed in a material carrier of the tooling fixture, the contact array is adapted to a connector of the camera module carried in the tooling fixture, and 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. The design is beneficial to realizing efficient and reliable electric connection, so that the time occupied by feeding of a single module is reduced, and the production efficiency is improved.

Further, still referring to fig. 2, in an embodiment of the present application, a central receiving case 140 may be disposed at the center of the turntable 120, and a top of the central receiving case 140 may have a through hole to allow a cable to pass therethrough. Cables drawn from the back of each detection module 110 (or other portions thereof) may pass through the through-hole and be received in the central receiving case 140.

Further, still referring to fig. 2, in one embodiment of the present application, the detection module 110 may be 90 ° flipped with respect to the bracket 130 such that the detection module may be switched between a horizontal posture and a vertical posture. The target modules are arranged around the turntable, each target module forms a test station of the material carrying platform, and each material carrying platform can carry a plurality of camera modules to test. The automatic detection equipment is characterized by further comprising a material changing mechanism (namely a material loading and unloading mechanism), wherein the material loading and unloading mechanism is suitable for taking the camera module placed in the horizontal posture (a material tray for loading the camera module can also be placed horizontally), moving the camera module to the detection module in the horizontal posture and placing the camera module into a tool clamp of the detection module in the horizontal posture. The design of this embodiment can be decomposed the action of going up unloading, and the action of will overturning is handed over by the detection module end and is realized for the mechanism that is used for going up unloading need not have the upset function, and then makes its complexity reduce. In the transmission process, the charging tray and the camera module are generally horizontally placed. After the action is decomposed, the camera module can keep a horizontal state, the loading and unloading time does not need to be additionally occupied due to the overturning action, and the overturning action of the detection module can be carried out simultaneously with the movement of the module, so that the production efficiency is favorably improved. Particularly, when the last unloading position (the station of reloading promptly) of getting back to of the module of making a video recording that detects, the material microscope carrier can carry out 90 upsets for the last unloading of the module of making a video recording is gone on the horizontal plane, and after the material loading was accomplished, the objective table can carry out 90 upsets, and then the carousel can rotate, drives the material microscope carrier and removes first detection module, begins to make a video recording the detection of module. In other words, during detection, the material carrying platform is in a vertical state and faces the target board module. In this embodiment, the target module is adapted to provide a light source and a target (e.g., a target) for testing, where the target is a target photographed by a module to be tested. On the other hand, the complexity of the loading and unloading mechanism is reduced, and particularly the moving freedom degree required by the loading and unloading mechanism is reduced, so that the space occupied by the moving range is reduced (for example, a multi-joint mechanical arm capable of realizing overturning usually needs to occupy larger moving space, and a mechanism based on a guide rail with a simpler structure can be used for realizing loading and unloading after the overturning automation degree is reduced). Therefore, the automatic detection equipment does not need to reserve a large space for avoiding the action range of the feeding and discharging mechanism, so that the detection equipment is more compact, and the unit area output rate is improved.

Further, in an embodiment of the present application, the detection module may include a flipping cylinder, and the flipping cylinder may drive the detection module to flip 90 ° relative to the bracket (the detection module, the flipping cylinder, and the like will be described in more detail in conjunction with other embodiments below). In this way, the detection module can be turned 90 degrees, so that the detection module can be switched between a horizontal posture and a vertical posture. When the detection module is in a horizontal posture, the material changing mechanism can change the detection module, and when the detection module is in a vertical posture, the detection module and the target module at the corresponding position can jointly complete corresponding test items.

Further, still referring to fig. 2 and 3, in one embodiment of the present application, the bracket may include two posts, the detection module is mounted between the two posts, and each post is mechanically connected to the detection module by a single fastener. The design can enable the automatic detection equipment to achieve the technical effects of easy disassembly and easy maintenance. Specifically, in this embodiment, the detection module is disposed in the peripheral region of the turntable, and when a certain detection module fails, the detection module can be conveniently detached by only opening two fasteners and pulling out the cable plug at the back (or other positions) of the detection module, and then a new detection module is replaced, so as to quickly recover the operation of the detection device. Therefore, the scheme of the embodiment reduces the fault interruption time, and further improves the production efficiency. Particularly, in a large-scale mass production (for example, mass production of tens of millions of scales), reducing the fault interruption time is very practical to improve the 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 burning 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 be eliminated). And the AFC detection function and the DCC detection function need to be realized by matching with corresponding target modules. And each target module may be configured to be dedicated to one detection function. Based on the carousel of this embodiment, can rotate every detection module in proper order to the respective mark board module department that corresponds of AFC detection function and DCC detection function to realize AFC and DCC and detect. Moreover, each detection module has an AFC detection function, a DCC detection function and an OTP burning function, so that the camera module can complete all testing processes without being repeatedly placed on and taken out of the material carrying platform. In fig. 1, the number of the detection modules is four, but the present application is not limited to this number. For example, the number of detection modules arranged along the periphery of the turntable can be five, six, etc. In another embodiment, each detection module may be responsible for detecting only one performance of the camera module.

Further, still referring to fig. 2, in one embodiment of the present application, the turntable 120 is disposed on a horizontal base 151, the horizontal base 151 has a flat surface, the base 151 can be disposed on a base frame 150 having a stable structure, and 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 by means of height adjusting devices located at the four legs, so that the flatness of the turntable can be ensured under acceptable installation conditions. In other words, the height of the detection module 110 on the turntable 120 in the Z-axis (i.e., vertical direction) direction varies little (i.e., within an error tolerance) as the turntable 120 rotates. In this embodiment, the turntable 120 has four brackets 130, and the four brackets 130 are respectively disposed at the trimming positions of the turntable 120. In particular, in the present embodiment, the trimming position of the turntable has four trimming slots 121, and one pillar of the bracket 130 is disposed on each of both sides of each trimming slot 121. The support 130 may support the detection module 110 at a height above the turntable 120. The upper ends of the two pillars of the bracket 130 may have openings, the pillar opening at one side of the detection module 110 may be provided with a rotating bearing, and the pillar opening at the other side may be provided with a flipping motor (the flipping motor may also be replaced by a flipping cylinder, which is not described in detail below). The turning motor is connected with the detection module 110, and drives the detection module 110 to rotate around the rotating bearing, so that the material carrying platform 111 can be positioned at different angles. Furthermore, the overturning range can be 0-90 degrees through the limiting structure, so that the horizontal state and the vertical state are two stable states, and feeding and discharging and various tests are performed conveniently. Wherein, can go on unloading under the horizontal condition, can carry out each item test under the vertical condition. Note that, in the present embodiment, the flipping motor is a driving mechanism for driving the detection module 110 to rotate integrally (from the horizontal posture to the vertical posture or from the vertical posture to the horizontal posture), and is not a driving mechanism for driving the tool fixture to open and close the cover.

Further, in an embodiment of the application, the automatic detection equipment further includes a control device, which is used for controlling the rotation of the turntable and sequentially moving the plurality of test modules to the material changing station and each test station; and for any one test module, after the test module moves to the material changing station, the test module is turned to a horizontal posture, then all the tool fixtures of the test module are controlled to open the cover, the material changing mechanism is controlled to complete material changing of the test module, all the tool fixtures of the test module are controlled to close the cover, the test module is turned to a vertical posture, and finally the turntable is controlled to rotate to move the test module to each test station in sequence to perform various tests.

It should be noted that the material carrying platform of the present application is not limited to a rotary integrated detection device. For example, to the integrated check out test set that each detection station is the linear type and arranges, or be exclusively used in the single check out test set of single detection link, the material microscope carrier of this application also can be suitable for. Through the safety light curtain, the material carrying platform can realize automatic material changing with low fault and high efficiency.

For example, in one embodiment of the present application, there is provided a material carrier adapted for automatic reloading, comprising: installation face, at least one frock clamp, light curtain device and mechanism of reloading. The tool clamp comprises a material carrier plate fixed on the mounting surface and a cover body connected with the material carrier plate through a pivot. The light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the tooling clamp in the fully opened state of the cover body. The material changing mechanism comprises a material taking head suitable for moving materials, wherein in the process of transverse translation of the material taking head, the material taking head and the materials taken by the material taking head are always higher than the light curtain. The material microscope carrier of this embodiment can realize the automatic reloading of low fault rate high efficiency, still has the advantage that occupies smallly simultaneously, is favorable to realizing the miniaturization of equipment. To the integrated check out test set that each detection station is linear type and arranges, or be exclusively used in the single check out test set of single detection link, the material microscope carrier that is suitable for automatic reloading of this embodiment all can be suitable for.

The material microscope carrier of this application can also be applied to in the automated inspection or the production facility of other materials that are similar to the module of making a video recording to the efficient realization of low fault rate is automatic to be expected, and realizes the miniaturization of equipment. For example, the material may be other electronic device function modules to be detected. The electronic device may be any kind of consumer electronics terminal device, such as a smart phone, a tablet computer, a notebook computer, etc. The electronic equipment function module is a module which can be arranged in the electronic equipment to complete a certain specific function of the electronic equipment. For example, the camera module, the structured light projection module, the TOF projection module (where TOF is called Time of Flight), the fingerprint identification module, and so on. These modules are generally small in size and are not conveniently transported one by one in the production line, and are usually loaded in batches using trays (or called product boxes) and then transported in the production line in units of whole trays. Also, these modules typically require a connector, which typically has a relatively dense array of contacts, to electrically connect to a motherboard of an electronic device (e.g., a cell phone) to allow the module to receive power and exchange data (e.g., output images). Before leaving the factory, the modules are usually subjected to power-on factory inspection to test the product performance and eliminate defective products. The material carrying platform is suitable for the detection equipment of the electronic equipment functional module, so that automatic material changing with low failure rate and high efficiency is realized, and the miniaturization of the equipment (namely the detection equipment) is realized.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A material carrier suitable for automatic material changing is characterized by comprising:

a mounting surface;

the tool clamp comprises a material support plate fixed on the mounting surface and a cover body connected with the material support plate in a pivot manner;

the light curtain device is suitable for generating a light curtain parallel to the mounting surface, and the position of the light curtain is higher than the tooling clamp in the fully opened state of the cover body; and

the material changing mechanism comprises a material taking head, the material taking head can perform transverse translation and lifting motion, the transverse translation is motion with the moving direction parallel to the mounting surface, the lifting motion is motion with the moving direction perpendicular to the mounting surface, and in the process of moving the material into the area above the material carrying platform through the transverse translation and in the process of moving the material out of the area above the material carrying platform, the material taking head and the taken material are both higher than the light curtain.

2. The material carrier as claimed in claim 1, wherein the tooling fixture has a plurality of mounting surfaces and is distributed in an array.

3. The material carrier as claimed in claim 1, wherein the material is a functional module of an electronic device to be tested.

4. The material loading platform of claim 3, wherein in a time interval after the cover opening of each tooling clamp of the material loading platform is completed and before the material intake head performs the lifting movement, whether to start a safety measure is determined according to whether the duration of the light curtain being blocked exceeds a threshold value, and the safety measure comprises giving an alarm and/or stopping the work of the material changing mechanism.

5. The material carrier of claim 3, wherein the at least one tooling clamp is arranged in two rows, the tooling clamps having a pivot axis of rotation, and the pivot axis of rotation being located on a side near an edge of the material carrier.

6. The material carrier as set forth in claim 3, wherein the cover opening angle for the tooling fixture to be fully opened is set to a value in a range of 145 ° to 162 °.

7. The material carrier as recited in claim 5, further comprising a cover drive mechanism adapted to drive the cover to rotate about the pivot axis of rotation.

8. The material loading platform as claimed in claim 7, wherein the cover driving mechanism comprises a cylinder and a crank connecting rod, the crank connecting rod comprises a cylinder rod and a driven rod, the cylinder rod is connected with a piston of the cylinder 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 of the driven rod is connected with the cover.

9. The material stage as set forth in claim 8 wherein said cover has a root portion proximate said pivot axis and an end portion distal from said pivot axis, said root portion having a raised formation through which said driven link is coupled to said cover.

10. The material carrying table as claimed in claim 9, wherein the cylinder is located below the material carrying plate, the material carrying plate has an avoiding hole adapted to the protrusion structure, and the avoiding hole allows the driven rod to pass through.

11. The material stage as set forth in claim 8 wherein for a single of the tooling clamps, the pivot includes a first section and a second section with a gap therebetween and the follower bar is passable through the gap in the open condition of the tooling clamp.

12. The material stage of claim 8, further comprising: a position identification sensor for identifying a position of the cylinder rod, the material change mechanism initiating or terminating lateral translation of the material intake head based on position information identified by the position identification sensor.

13. The material carrier as recited in claim 12, wherein the position identifying sensor is a magnetic sensor or a photoelectric sensor.

14. The material carrying platform as claimed in claim 3, wherein the electronic device functional module is a camera module, the cover has a through hole matching with the periphery of the lens of the camera module, and the cover covers the part of the camera module other than the lens after covering.

15. The material stage as set forth in claim 3, wherein said reloading mechanism further comprises:

a support table; and

the guide rail is arranged on the support platform, and one part of the guide rail extends to the outside of the support platform and is arranged above the material carrying platform;

wherein the material intake head is mounted to the guide rail and is laterally translatable along the guide rail.

16. The material carrier as set forth in claim 8 wherein each of the tooling clamps has at least two material loading positions.

17. The material carrying platform as claimed in claim 8, wherein a contact array is arranged in the material carrying plate, the contact array is adapted to a connector of the electronic device function module carried in the tooling fixture, and after the cover is closed, the cover body presses the electronic device function module tightly under the action of the driving mechanism, so that the connector is in close contact with the contact array.

18. The utility model provides a module automated inspection equipment which characterized in that includes:

the detection device comprises a plurality of detection modules, a plurality of detection modules and a plurality of control modules, wherein each detection module comprises a material loading platform, each material loading platform comprises an installation surface and at least one tool clamp, and each tool clamp comprises a material support plate fixed on the installation surface and a cover body connected with the material support plate through a pivot;

the detection modules are arranged on the peripheral area of the turntable;

the target board modules are suitable for providing a testing light source and a target object for the electronic equipment functional module which is taken as a material and carried in the tool clamp; and

the material changing mechanism comprises a material intake head suitable for moving materials, the material changing mechanism and the plurality of target modules form at least one material changing station and a plurality of testing stations around the rotary table, and the rotary table can drive the detection module to rotate relative to the target modules and the material changing mechanism;

the work fixture comprises a cover body, a material changing station, a material feeding device, a material discharging device and a material discharging device, wherein the material changing 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 work fixture in a fully opened state of the cover body; and in the process of the transverse translation of the material taking head, the material taking head and the materials taken by the material taking head are always higher than the light curtain.

19. The automatic die set detecting device according to claim 18, wherein the automatic detecting device has a base, the turntable is rotatably mounted on the base, and the light curtain device is fixed on the base or fixed together with the base through an intermediary; or the light curtain device is fixed on a reference surface through an intermediary object.

20. The modular automated inspection apparatus of claim 18, wherein the inspection module is capable of being 90 ° flipped to be switchable between a horizontal position and a vertical position, wherein the refueling mechanism is capable of refueling the inspection module when the inspection module is in the horizontal position, and wherein the inspection module is adapted to perform a test procedure when the inspection module is in the vertical position.

21. The automatic die set detection device according to claim 20, further comprising a control device for controlling the rotation of the turntable to sequentially move the plurality of detection modules to the material changing station and each of the test stations; and for any one detection module, after the detection module moves to the material changing station, the detection module is turned to a horizontal posture, then all the tooling fixtures of the detection module are controlled to open the cover, the material changing mechanism is controlled to complete the material changing of the detection module, all the tooling fixtures of the detection module are controlled to close the cover, the detection module is turned to a vertical posture, and finally the turntable is controlled to rotate to move the detection module to each test station in sequence for each test.