Full-automatic four-station AA equipment for AOA three-group module

Abstract

The invention provides full-automatic four-station AA equipment for an AOA three-group module, and relates to the field of camera production equipment. The AOA three-group module full-automatic four-station AA equipment comprises main equipment, the main equipment internally comprises a four-station AA module, a G1 feeding module, a G1 feeding module, a CHRAT module, a Sensor feeding module and a G2 feeding module, the main equipment is supported by a supporting frame, and the four-station AA module is located in the middle of the top end of the supporting frame of the main equipment. According to the invention, simultaneous active alignment of G1, G2 and Sensor is realized, and a brand new solution is provided for assembly and development of periscopic three-group modules. According to the method, the G1, the G2 and the Sensor are accurately positioned through the final optical imaging effect, accumulated errors in the multiple assembling processes are eliminated, glue is drawn between the two combination surfaces of the G1 and the G2 and the G2 and the Sensor at the same time, UV curing is conducted, reliable combination of the G1, the G2 and the Sensor is achieved, and powerful guarantee is provided for high-quality and high-stability batch automatic production of the periscopic three-group module.

Description

Technical Field

[0001] The present invention relates to the field of camera production equipment, and particularly to a full-automatic four-station AA device for AOA three-group modules. Background Art

[0002] Traditional mobile phone module AA devices have only a single lens (Lens), and only assemble the Lens and the Sensor together by means of active alignment. This technology is already relatively mature in the industry. In the emerging periscope module, the lens (Lens) is composed of two groups, namely group 1 (G1) and group 2 (G2). The process of simultaneously actively aligning G1, G2, and the Sensor is called the AOA process. The AOA process is still in the exploration stage in the industry. At present, there is basically no relevant technology and equipment flowing out on the market, and the technology of simultaneously assembling the three has not been reported.

[0003] In conventional mobile phone camera AA devices, there is only active alignment between the Lens and the Sensor. After calibrating the system environment, taking one of them as the reference, by processing the image of a specific target captured by the Sensor, different field-of-view clarity and resolution values are obtained, and then the 6-degree-of-freedom moving platform is automatically feedback-controlled to align the Lens and the Sensor. It is impossible to process the simultaneous AA of two lens groups and the Sensor. In the AOA process, G1, G2, and the Sensor need to be simultaneously assembled and aligned. During the AA process, the relative position relationships between the two groups of G1 and G2, and G2 and the Sensor need to be adjusted. The change of any component will have a huge impact on the final imaging effect. During the active alignment process, by processing the image of a specific target captured by the Sensor, different field-of-view clarity and resolution values are obtained and fed back to the two 6-degree-of-freedom moving platforms of G1 and G2, and G2 and the Sensor. Since both of these two 6-degree-of-freedom will affect the imaging and there is an interactive part in the influence, a specific algorithm is required to evaluate and calculate the different influence degrees and trends of the two 6-degree-of-freedom on the imaging, and the two 6-degree-of-freedom are dynamically cross-adjusted multiple times respectively. In this case, if the initial alignment position of one of the components deviates greatly from the ideal position, its influence on the final imaging effect will increase geometrically compared with the AA mode of the conventional lens and the Sensor, resulting in the failure of the alignment of the three, and it is always impossible to adjust to the ideal effect. Therefore, this poses new challenges to the hardware and software of the AOA device.

[0004] In terms of hardware, two sets of 6-degree-of-freedom platforms need to be arranged in a compact space with high utilization rate, and two corresponding dispensing UV mechanisms need to be matched. At the same time, the loading and unloading mechanism should be able to handle three types of semi-finished products (G1, G2, Sensor). In addition, an ultra-high-precision displacement sensor and a vision system must be equipped to calibrate the initial level and initial AA position of G1 and G2 through external height measurement + photography. In terms of software, before starting AA, the initial level and initial AA position of G1 and G2 need to be calibrated according to external height measurement + photography. During the AA process, based on the images collected by the Sensor, it is necessary to determine the adjustment direction and which component and which degree of freedom among the three need to be adjusted. Since there is an interactive part in the influence of these two sets of 6 degrees of freedom, it is necessary to dynamically cross-adjust these two sets of 6 degrees of freedom separately and multiple times. Summary of the Invention

[0005] (1) Technical problems to be solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a fully automatic four-station AA device for AOA three-group modules, filling the gap in the periscope AOA three-group device, realizing the simultaneous active alignment of G1, G2, and Sensor, and providing a new solution for the assembly and development of periscope cameras. Since the optical path of the periscope camera is folded multiple times, any deviation of G1, G2, or Sensor will have a huge impact on the final imaging effect. This solution can accurately assemble G1, G2, and Sensor together and achieve the precise alignment of the three. Active alignment eliminates the cumulative error during the assembly process, and the simultaneous active alignment of the three ensures that any component is in the best position for the best imaging effect, providing a strong guarantee for the high-quality, high-stability batch automated production of periscope cameras.

[0007] (2) Technical solutions

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A fully automatic four-station AA device for an AOA three-group module, including a main device, which contains a four-station AA module, a G1 loading module, a G1 feeding module, a CHRAT module, a Sensor feeding module, and a G2 feeding module. The main device is supported by a support frame. The four-station AA module is located in the middle of the top of the support frame of the main device. The CHART module is located at the top of the support frame of the main device and on top of the four-station AA module. The G1 loading module is located on one side of the four-station AA module and also at the bottom of the CHART module. The G1 Tray module is located on the support frame of the main device and in front of the four-station AA module. The Sensor feeding module is located in the support frame of the main device at one end far from the G1 loading module. The G2 feeding module is located in the support frame of the main device at one end close to the Sensor feeding module.

[0009] Preferably, the main body of the four-station AA module is four teleconverter UV modules. A glue painting module is fixedly arranged on one side of the lens of each teleconverter UV module. Each teleconverter UV module includes a teleconverter lens.

[0010] Preferably, a G1 six-axis module, a SUT module, and a G2 six-axis module are fixedly arranged at the bottom of the lens of each teleconverter UV module.

[0011] Preferably, the SUT module of each teleconverter UV module consists of a laser coaxial displacement sensor, a bottom vision module, a SUT fixture, a hand-adjustable leveling table, a collection box, and a linear XZY three-axis.

[0012] Preferably, the bottom of each SUT module is a linear XZY three-axis. The bottom vision module is at the top of each linear XZY three-axis. The hand-adjustable leveling table is at the top of each bottom vision module. The laser coaxial displacement sensor and the SUT fixture are at the top of each hand-adjustable leveling table. The collection box of each SUT module is located on one side of the bottom vision module.

[0013] Preferably, each glue painting module includes a Sensor glue painting module, a glue painting vision module, a glue painting height measurement module, a G2 glue painting module, and a broken glue detection module. Each G2 glue painting module is close to the teleconverter lens.

[0014] Preferably, the CHRAT module is set as a white light programmable backlight. The distance between the CHART module and the upper surface of the G1 loading module is 300 mm - 600 mm.

[0015] Working principle: The working steps of this AOA three-group module full-automatic four-station AA equipment are as follows:

[0016] S1: Manually place the G1 magazine at the designated position on the front door, and use the material taking module and the feeding module to automatically feed a single G1 to the G1 six-axis grippers at the four stations.

[0017] S2: Manually place the G2 magazine on the external up and down feeding mechanism on the right side. Use the G2 material taking module to place it at the SUT transfer position at the four stations respectively, and the SUT feeds G2 to the G2 six-axis gripper.

[0018] S3: Manually place the Sensor magazine on the external up and down feeding mechanism on the left side. Use the Sensor material taking module to place it on the SUT at the four stations respectively, and unload the finished products A-ed on the SUT back to the left magazine.

[0019] S4: There are coaxial laser displacement sensors and bottom vision on the SUT. After G1 is fed to the G1 six-axis gripper, the coaxial laser displacement sensor performs laser multi-point height measurement on the bottom surface of G1 to adjust the initial level of G1, and the bottom vision takes pictures of the light passing hole of G1 to adjust the initial center position of G1. Then, after G2 is fed to the G2 six-axis gripper, the coaxial laser displacement sensor performs laser multi-point height measurement on the bottom surface of G2 to adjust the initial level of G2, and the bottom vision takes pictures of the light passing hole of G2 to adjust the initial center position of G2. After two rounds of external calibration, G1 and G2 can be in a relatively small deviation position before AA.

[0020] S5: After calibration, the SUT transfers the Sensor under G2 to perform active alignment of G1, G2, and Sensor. During this process, the G1 six-axis and G2 six-axis are adjusted back and forth multiple times to achieve the best imaging effect, and the positions of the G2 six-axis and Sensor three-axis are held. This step is the pre-AA process.

[0021] S6: After pre-AA is completed, the SUT moves the Sensor out to the Sensor dispensing position, and the G2 six-axis moves G2 out to the G2 dispensing position (G1 remains stationary). After drawing glue and height measurement, glue is drawn on the upper surfaces of Sensor and G2 simultaneously, and then visual inspection of the glue pattern is performed after drawing glue respectively.

[0022] S7: After drawing glue is completed, the SUT transfers the Sensor, and the G2 six-axis transfers G2 back to the pre-AA position and takes pictures again for confirmation. Turn on the UV lamp to irradiate the two glue bonding surfaces of G1 and G2, G2 and Sensor for uv curing. After curing is completed, the G1 gripper and G2 gripper are loosened, and the A-ed products stay on the SUT and are unloaded to the finished product magazine through the unloading module.

[0023] (III) Beneficial effects

[0024] The present invention provides a fully automatic four-station AA device for an AOA three-group module, having the following beneficial effects:

[0025] The present invention provides a fully automatic four-station AA device for an AOA three-group module, filling the gap of the periscope AOA three-group device, realizing the simultaneous active alignment of G1, G2, and the Sensor, and providing a new solution for the assembly and development of periscope cameras. Since the optical path of the periscope camera is folded multiple times, any deviation of G1, G2, or the Sensor will have a huge impact on the final imaging effect. This solution can accurately assemble G1, G2, and the Sensor together to achieve the precise alignment of the three. The active alignment eliminates the cumulative error in the assembly process, and the simultaneous active alignment of the three ensures that any component is in the best position for the best imaging effect, providing a strong guarantee for the high-quality, high-stability batch automated production of periscope cameras. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an overall view of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0027] Figure 2 is a schematic structural diagram of the AA module of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0028] Figure 3 is a side view of the AA module of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0029] Figure 4 is a schematic structural diagram of the G2 six-axis part of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0030] Figure 5 is a schematic structural diagram of the G1 six-axis part of a fully automatic four-station AA device for an AOA three-group module of the present invention

[0031] Figure 6 is a schematic structural diagram of the SUT module of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0032] Figure 7 is a schematic structural diagram of the glue application module of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0033] Figure 8 is a schematic structural diagram of the CHART module of a fully automatic four-station AA device for an AOA three-group module of the present invention;

[0034] Figure 9Schematic diagram of the structure and working process of the Sensor material taking module of a fully automatic four-station AA device for AOA three-group modules according to the present invention;

[0035] Figure 10 Schematic diagram of the structure and working process of the G1 feeding module of a fully automatic four-station AA device for AOA three-group modules according to the present invention;

[0036] Figure 11 Schematic diagram of the structure and working process of the Sensor feeding module of a fully automatic four-station AA device for AOA three-group modules according to the present invention;

[0037] Figure 12 Schematic diagram of the structure and working process of the G2 feeding module of a fully automatic four-station AA device for AOA three-group modules according to the present invention.

[0038] Among them, 1. Main equipment; 2. Four-station AA module; 3. G1 loading module; 4. G1 feeding module; 5. CHART module; 6. Sensor feeding module; 7. G2 feeding module; 201. Telecentric lens UV module; 202. Glue painting module; 203. G1 six-axis module; 204. SUT module; 205. G2 six-axis module; 2041. Laser coaxial displacement sensor; 2042. Bottom vision module; 2043. SUT fixture; 2044. Hand-adjustable leveling platform; 2045. Acquisition box; 2046. Linear XZY three-axis; 2021. Sensor glue painting module; 2022. Glue painting vision module; 2023. Glue painting height measurement module; 2024. G2 glue painting module; 2025. Glue break detection module; 2011. Telecentric lens. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In the description of this application, it should be noted that the terms used here are only for describing specific embodiments, rather than intending to limit the exemplary embodiments according to this application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] Embodiment 1:

[0041] As Figures 1-12 shown, the embodiment of the present invention provides a fully automatic four-station AA device for an AOA three-group module, including a main device (1). The main device (1) contains a four-station AA module (2), a G1 loading module (3), a G1 feeding module (4), a CHART module (5), a Sensor feeding module (6), and a G2 feeding module (7). The main device (1) is supported by a support frame. The four-station AA module (2) is located in the middle of the top of the support frame of the main device (1). The CHART module (5) is located at the top of the support frame of the main device (1). The CHART module (5) is located on top of the four-station AA module (2). The G1 loading module (3) is located on one side of the four-station AA module (2) and also at the bottom of the CHART module (5). The G1 feeding module (4) is located on the support frame of the main device (1) and in front of the four-station AA module (2). The Sensor feeding module (6) is located in the support frame of the main device (1) at one end far from the G1 loading module (3). The G2 feeding module (7) is located in the support frame of the main device (1) at one end close to the Sensor feeding module (6).

[0042] The main body of the four-station AA module (2) is four teleconverter UV modules (201). A glue painting module (202) is fixedly arranged on one side of the lens of each teleconverter UV module (201). Each teleconverter UV module (201) includes a teleconverter lens (2011). At the bottom of the lens of each teleconverter UV module (201), a G1 six-axis module (203), a SUT module (204), and a G2 six-axis module (205) are fixedly arranged. Each G1 six-axis module (203) and G2 six-axis module (205) are respectively located on both sides of the SUT module (204). Each SUT module (204) is provided with a laser coaxial displacement sensor (2041), a bottom vision module (2042), a SUT fixture (2043), a manual leveling table (2044), a collection box (2045), and a linear XZY three-axis (2046). The bottom of each SUT module (204) is the linear XZY three-axis (2046). The top of each linear XZY three-axis (2046) is the bottom vision module (2042). The top of each bottom vision module (2042) is the manual leveling table (2044). On the top of each manual leveling table (2044), there are a laser coaxial displacement sensor (2041) and a SUT fixture (2043). The collection box (2045) of each SUT module (204) is located on one side of the bottom vision module (2042). Each glue painting module (202) includes a Sensor glue painting module (2021), a glue painting vision module (2022), a glue painting height measurement module (2023), and a G2 glue painting module (2024). Each G2 glue painting module (2024) is close to the teleconverter lens (2011). The CHART module (5) is set as a white light programmable backlight. The distance between the CHART module (5) and the upper surface of the G1 loading module (3) is 300 mm - 600 mm.

[0043] The working steps of the AOA three-group full-automatic four-station AA equipment are as follows:

[0044] S1: Manually place the G1 magazine at the specified position of the front door, and use the material taking module and the loading module to automatically load a single G1 to the G1 six-axis grippers at the four stations.

[0045] S2: Manually place the G2 magazine on the external upper and lower material mechanism on the right side, and use the G2 material taking module to place it at the SUT transfer positions of the four stations respectively, and then the SUT loads the G2 to the G2 six-axis grippers.

[0046] S3: Manually place the Sensor magazine on the external upper and lower material mechanism on the left side, and use the Sensor material taking module to place it on the SUTs at the four stations respectively, and unload the finished products A-ed on the SUTs back to the left magazine.

[0047] S4: There are coaxial laser displacement sensors and bottom vision on the SUT. After the G1 is loaded onto the G1 six-axis gripper, the coaxial laser displacement sensor performs laser multi-point height measurement on the bottom surface of G1 to adjust the initial level of G1. The bottom vision takes pictures of the light passing holes of G1 to adjust the initial center position of G1. Then, after the G2 is loaded onto the G2 six-axis gripper, the coaxial laser displacement sensor performs laser multi-point height measurement on the bottom surface of G2 to adjust the initial level of G2. The bottom vision takes pictures of the light passing holes of G2 to adjust the initial center position of G2. After two rounds of external calibration, G1 and G2 can be in a position with a relatively small relative deviation before AA.

[0048] S5: After calibration, the SUT transfers the Sensor under G2 to perform active alignment of G1, G2, and the Sensor. During this process, the G1 six-axis and G2 six-axis are adjusted back and forth multiple times to achieve the best imaging effect, and the positions of the G2 six-axis and the Sensor three-axis are held. This step is the pre-AA process.

[0049] S6: After the pre-AA is completed, the SUT moves the Sensor out to the PCB dispensing position, and the G2 six-axis moves G2 out to the G2 dispensing position (G1 remains stationary). After the dispensing height measurement, dispensing is performed on the upper surfaces of the Sensor and G2 simultaneously, and then visual inspection of the dispensed glue patterns is performed after dispensing.

[0050] S7: After dispensing is completed, the SUT moves the Sensor, and the G2 six-axis moves G2 back to the pre-AA position and takes pictures again for confirmation. The UV lamp is turned on to irradiate the two glue bonding surfaces of G1 and G2, and G2 and the Sensor for UV curing. After curing is completed, the G1 gripper and G2 gripper are released, and the qualified products stay on the SUT and are unloaded into the finished product magazine through the unloading module.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AOA three-group module fully automatic four-station AA device, comprising a main device (1), characterized in that: The main device (1) comprises a four-station AA module (2), a G1 loading module (3), a G1 feeding module (4), a CHART module (5), a Sensor feeding module (6), and a G2 feeding module (7). The main device (1) is supported by a supporting frame. The four-station AA module (2) is located at the middle of the top of the supporting frame of the main device (1). The CHART module (5) is located at the top of the supporting frame of the main device (1). The CHART module (5) is located at the four-station AA module (2). The G1 loading module (3) is located on one side of the four-station AA module (2) and is also located at the bottom of the CHART module (5). The G1 feeding module (4) is located on the support frame of the main device (1) and is located at the front end of the four-station AA module (2). The Sensor feeding module (6) is located in the support frame of the main device (1) and is away from one end of the G1 loading module (3). The G2 feeding module (7) is located in the support frame of the main device (1) and is close to one end of the Sensor feeding module (6).

2. According to claim 1, the AOA three-group module fully automatic four-station AA equipment is characterized by: The main body of the four-station AA module (2) is four teleconverter UV modules (201), a painting glue module (202) is fixedly arranged on one side of the lens of each teleconverter UV module (201), and each teleconverter UV module (201) comprises a teleconverter lens (211).

3. The AOA three-group module fully automatic four-station AA equipment according to claim 2 is characterized by: A G1 six-axis module (203), a SUT module (204), and a G2 six-axis module (205) are fixedly arranged at the bottom of the lens of each teleconverter UV module (201), and each of the G1 six-axis module (203) and the G2 six-axis module (205) is located on both sides of the SUT module (204), respectively.

4. According to claim 3, the AOA three-group module fully automatic four-station AA equipment is characterized by: Each of the SUT modules (204) is provided with a laser coaxial displacement sensor (2041), a bottom vision module (2042), a SUT fixture (2043), a manually adjustable horizontal platform (2044), a collection box (2045), and a linear XZY triaxial (2046).

5. The AOA three-group module fully automatic four-station AA equipment according to claim 3 is characterized by: The bottom of each SUT module (204) is a linear XZY triaxial (2046), the top of each linear XZY triaxial (2046) is a bottom vision module (2042), the top of each bottom vision module (2042) is a hand-adjustable horizontal platform (2044), the top of each hand-adjustable horizontal platform (2044) is a laser coaxial displacement sensor (2041) and a SUT fixture (2043), and the acquisition box (2045) of each SUT module (204) is located on one side of the bottom vision module (2042).

6. The AOA three-group module fully automatic four-station AA equipment according to claim 1, characterized in that: Each of the glue modules (202) includes a sensor glue module (2021), a glue vision module (2022), a glue height measurement module (2023), and a G2 glue module (2024), and each of the G2 glue modules (2024) is located close to the teleconverter lens (2011).

7. The AOA three-group module fully automatic four-station AA equipment according to claim 1, characterized in that: The CHART modules (5) are all configured as white light programmable backlight sources, and the distance between the CHART modules (5) and the upper surface of the G1 feeding module (3) is 300 mm to 600 mm.

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