A lens module assembly device

Abstract

The application relates to the technical field of lens modules, and discloses a lens module assembling device, which comprises a rack, a positioning mechanism and a fixing mechanism. The positioning mechanism comprises a linear conveying unit and a grabbing unit arranged on the rack. The device further comprises an adjusting unit arranged on the power output end of the linear conveying unit. The power output end of the adjusting unit is provided with a bearing table. The bearing table is provided with a first area for arranging a lens assembly and a second area for arranging an image sensor unit. The bearing table can be switched among a feeding station, a lens assembly taking-out station and a correction station under the driving of the linear conveying unit. The grabbing unit comprises a grabbing assembly. When the bearing table is located at the lens assembly taking-out station, the grabbing assembly is located directly above the first area. The fixing mechanism is used for fixing the lens assembly on the image sensor unit after position correction. The lens module assembling device can correct the relative position of the center of the lens assembly and the center of the image sensor unit.

Description

Technical Field

[0001] This invention relates to the field of lens module technology, and in particular to a lens module assembly device. Background Technology

[0002] In existing technologies, miniaturized lens modules (such as those used in medical instruments like gastroscopes and colonoscopes) are typically assembled by directly dispensing or fastening the lens assembly and image sensor unit during production. This process lacks prior calibration of the relative positions of the center of the lens assembly and the center of the image sensor unit, resulting in poor image quality. Furthermore, the assembly of the lens assembly and image sensor unit in existing technologies is done manually, relying heavily on the operator's skill, which compromises both efficiency and accuracy. Summary of the Invention

[0003] The present invention provides a lens module assembly apparatus capable of correcting the relative position between the center of the lens assembly and the center of the image sensor unit.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A lens module assembly apparatus includes: a frame;

[0006] The alignment mechanism includes a linear conveyor unit mounted on the frame, an adjustment unit mounted on the power output end of the linear conveyor unit, and a gripping unit mounted on the frame. The power output end of the adjustment unit is provided with a support platform. The support platform has a first area for mounting a lens assembly and a second area for mounting an image sensor unit. The support platform can switch between a loading station, a lens assembly removal station, and a calibration station under the drive of the linear conveyor unit. The gripping unit includes a gripping component. When the support platform is located at the lens assembly removal station, the gripping component is positioned directly above the first area and is used to grip the lens assembly located in the first area. The adjustment unit is used to correct the position of the support platform to correct the relative position of the lens assembly gripped by the gripping component and the image sensor unit located on the support platform at the calibration station.

[0007] A fixing mechanism is provided for fixing the lens assembly onto the image sensor unit after position correction.

[0008] When assembling a lens assembly and an image sensor unit using the lens module assembly device provided by this invention, when the carrier platform is located at the loading station, the lens assembly is placed on the first area and positioned within the first area, and the image sensor unit is placed on the second area and positioned within the second area. Subsequently, the carrier platform and the lens assembly and image sensor unit on it move to the lens assembly removal station under the drive of the linear conveyor unit. At this time, the gripping component is located directly above the first area at the lens assembly removal station, and under the coordination of the lens module assembly device, the lens assembly can be removed from the first area (i.e., the lens assembly is fixed by the gripping component and detached from the first area). Subsequently, the image sensor unit moves to the calibration station (i.e., directly below the lens assembly) under the drive of the linear conveyor unit, and the adjustment unit fine-tunes the position of the carrier platform (i.e., the second area) to calibrate the relative position between the lens assembly and the image sensor unit. After calibration, the lens assembly is fixed to the calibrated image sensor unit by the fixing mechanism, thus completing the assembly of the lens assembly and the image sensor unit.

[0009] Before assembling the lens assembly and image sensor unit, calibrating their relative positions (i.e., calibrating the relative positions between the center of the lens assembly and the center of the image sensor unit) can reduce the dependence of lens module quality on personnel assembly skills, help ensure the accuracy of the relative positions between the lens assembly and the image sensor unit, and thus help ensure the image quality of the lens module.

[0010] Meanwhile, the lens module assembly device provided by the present invention is at least a semi-automatic device, which has higher assembly efficiency and accuracy compared with the manual assembly in the prior art. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a lens module assembly device provided in an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the alignment mechanism and other components in a lens module assembly device provided by an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the alignment mechanism and fixing mechanism in a lens module assembly device provided in an embodiment of the present invention;

[0014] Figure 4 for Figure 3 The diagram shows a portion of the alignment and fixing mechanisms (the lens assembly on the support platform is only for understanding the position of the first positioning part).

[0015] Figure 5This is a schematic diagram of the gripping unit in a lens module assembly device provided in an embodiment of the present invention;

[0016] Figure 6 for Figure 5 The diagram shown is a partial structural representation of the grasping unit.

[0017] Figure 7 This is a schematic diagram of the dispensing mechanism and the dirt detection unit in a lens module assembly device provided in an embodiment of the present invention.

[0018] Icons: 1-Frame; 2-Alignment mechanism; 21-Linear conveyor unit; 22-First positioning part; 23-Second positioning part; 24-Adjustment unit; 240-Bearing platform; 241-First fine-tuning component; 242-Second fine-tuning component; 243-Third fine-tuning component; 244-Fourth fine-tuning component; 245-Fifth fine-tuning component; 25-Grip unit; 250-Support body; 251-Grip component; 252-Support base; 253-Three-axis adjustment part; 2531-First adjustment part ; 2532-Second Adjustment Section; 2533-Third Adjustment Section; 254-Fixed Plate; 255-Floating Plate; 256-Threaded Section; 257-Fine Adjustment Screw; 258-First Elastic Element; 259-Second Elastic Element; 26-Lifting Unit; 27-Horizontal Pin; 3-Fixing Mechanism; 31-Curing Lamp Assembly; 4-Dispensing Mechanism; 5-Dirty Spot Detection Unit; 51-Microscope; 100-Lens Assembly; 200-Image Sensor Unit; 300-First Region; 400-Second Region. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-4As shown, the lens module assembly device provided in this embodiment includes a frame 1, an alignment mechanism 2, and a fixing mechanism 3. The alignment mechanism 2 includes a linear conveying unit 21 mounted on the frame 1, an adjustment unit 24 mounted on the power output end of the linear conveying unit 21, and a gripping unit 25 mounted on the frame 1. The power output end of the adjustment unit 24 is provided with a support platform 240. The support platform 240 has a first area 300 for setting the lens assembly 100 and a second area 400 for setting the image sensor unit 200. The support platform 240 can switch between a loading station, a lens assembly removal station, and a calibration station under the drive of the linear conveying unit 21. The gripping unit 25 includes a gripping component 251. When the support platform 240 is located at the lens assembly removal station, the gripping component 251 is located directly above the first area 300 and is used to grip the lens assembly 100 located in the first area 300. The adjustment unit 24 is used to correct the position of the support platform 240, so as to correct the relative position between the lens assembly 100 grasped by the gripping component 251 and the image sensor unit 200 located on the support platform 240 at the correction station. The fixing mechanism 3 is used to fix the lens assembly 100 to the image sensor unit 200 after position correction.

[0021] When assembling the lens assembly 100 and the image sensor unit 200 using the lens module assembly device provided in this embodiment, when the carrier platform 240 is located at the loading station, the lens assembly 100 is placed on the first area 300 and positioned within the first area 300, and the image sensor unit 200 is placed on the second area 400 and positioned within the second area 400; subsequently, the carrier platform 240 and the lens assembly 100 and image sensor unit 200 on it move to the lens assembly removal station under the drive of the linear conveyor unit 21; at this time, the gripping component 251 is located directly above the first area 300, and under the coordination of the lens module assembly device, it can... The lens assembly 100 is removed from the first area 300 (i.e., the lens assembly 100 is fixed by the gripping component 251 and detached from the first area 300); then, the carrier platform 240 moves to the calibration station (i.e., directly below the lens assembly 100) driven by the linear conveying unit 21, and the adjustment unit 24 fine-tunes the position of the carrier platform 240 (i.e., the second area 400) to calibrate the relative position between the lens assembly 100 and the image sensor unit 200; after calibration, the lens assembly 100 is fixed to the calibrated image sensor unit 200 by the fixing mechanism 3, thus completing the assembly of the lens assembly 100 and the image sensor unit 200.

[0022] Before assembling the lens assembly 100 and the image sensor unit 200, the relative positions of the lens assembly 100 and the image sensor unit 200 are corrected (i.e., the relative positions between the center of the lens assembly 100 and the center of the image sensor unit 200 are corrected). This reduces the dependence of the lens module quality on the assembly skills of the personnel, helps to ensure the accuracy of the relative positions between the lens assembly 100 and the image sensor unit 200, and thus helps to ensure the image quality of the lens module.

[0023] Meanwhile, the lens module assembly device provided in this embodiment is at least a semi-automatic device, which has higher assembly efficiency and accuracy compared to manual assembly in the prior art.

[0024] In one alternative implementation, the lens assembly 100 can be positioned in the first region 300 of the support stage 240 via the first positioning part 22, and the image sensor unit 200 can be positioned in the second region 400 of the support stage 240 via the second positioning part 23.

[0025] In one optional implementation of the second positioning part 23, the second positioning part 23 can be a positioning seat including a spring probe connector (i.e., a Pogo pin connector), so that after the image sensor unit 200 is placed on the second positioning part 23, it can be electrically connected to the control unit through the positioning seat.

[0026] In other implementations, when the image sensor unit 200 is directly mounted on the support platform 240, the image sensor unit 200 can be electrically connected to the control unit through the support platform 240 after being mounted on the support platform 240.

[0027] The power output end of the linear conveying unit 21 can reciprocate in the first direction. In one optional implementation, the adjustment unit 24 includes a first fine-tuning component 241, which is disposed at the power output end of the linear conveying unit 21. The support platform 240 is disposed at the power output end of the first fine-tuning component 241 and can be finely adjusted in position in the first direction under the drive of the first fine-tuning component 241.

[0028] In one optional implementation, the adjustment unit 24 includes a second fine-tuning component 242, which is disposed at the power output end of the first fine-tuning component 241. The support platform 240 is disposed at the power output end of the second fine-tuning component 242 (i.e., the support platform 240 is indirectly disposed at the power output end of the first fine-tuning component 241 through the second fine-tuning component 242), and can be finely adjusted in position in a second direction under the drive of the second fine-tuning component 242; wherein, the first direction is perpendicular to the second direction, and both the first direction and the second direction are parallel to the horizontal plane.

[0029] In one optional implementation, the adjustment unit 24 includes a third fine-tuning component 243, which is disposed at the power output end of the second fine-tuning component 242. The support platform 240 is disposed at the power output end of the third fine-tuning component 243 (i.e., the support platform 240 is indirectly disposed at the power output end of the second fine-tuning component 242 through the third fine-tuning component 243), and can rotate around the first axis under the drive of the third fine-tuning component 243 to perform fine-tuning of the position; wherein, the extension direction of the first axis is parallel to the first direction.

[0030] In one optional implementation, the adjustment unit 24 includes a fourth fine-tuning component 244, which is disposed at the power output end of the third fine-tuning component 243. The support platform 240 is disposed at the power output end of the fourth fine-tuning component 244 (i.e., the support platform 240 is indirectly disposed at the power output end of the third fine-tuning component 243 through the fourth fine-tuning component 244), and can rotate around the second axis under the drive of the fourth fine-tuning component 244 to perform fine-tuning of the position; wherein, the extension direction of the second axis is parallel to the second direction.

[0031] In one optional implementation, the direction perpendicular to both the first and second directions is the third direction. The adjustment unit 24 includes a fifth fine-tuning component 245, which is disposed at the power output end of the fourth fine-tuning component 244. The support platform 240 is disposed at the power output end of the fifth fine-tuning component 245 (i.e., the support platform 240 is indirectly disposed at the power output end of the fourth fine-tuning component 244 through the fifth fine-tuning component 245), and can rotate around the third axis under the drive of the fifth fine-tuning component 245 to perform fine-tuning of the position; wherein, the extension direction of the third axis is parallel to the third direction.

[0032] In the specific configuration of the first fine-tuning component 241, in order to achieve higher adjustment accuracy of the position of the image sensor unit 200 in the first direction, in one optional implementation, the first fine-tuning component 241 may include a micrometer knob-type linear slide.

[0033] In the specific configuration of the second fine-tuning component 242, in order to achieve higher adjustment accuracy of the position of the image sensor unit 200 in the second direction, in one optional implementation, the second fine-tuning component 242 may include a micrometer knob-type linear slide.

[0034] In the specific configuration of the third fine-tuning component 243, in order to achieve higher adjustment accuracy of the position of the image sensor unit 200 in the direction around the first axis, in one optional implementation, the third fine-tuning component 243 may include a micrometer knob-type rotary slide.

[0035] In the specific configuration of the fourth fine-tuning component 244, in order to achieve higher adjustment accuracy of the position of the image sensor unit 200 in the direction around the second axis, in one optional implementation, the fourth fine-tuning component 244 may include a micrometer knob-type rotary slide.

[0036] In the specific configuration of the fifth fine-tuning component 245, in order to achieve higher adjustment accuracy of the position of the image sensor unit 200 in the direction around the second axis, in one optional implementation, the fifth fine-tuning component 245 may include a micrometer knob-type rotary slide.

[0037] Of course, the first fine-tuning component 241, the second fine-tuning component 242, the third fine-tuning component 243, the fourth fine-tuning component 244, and the fifth fine-tuning component 245 are not limited to the above structures, as long as they can achieve the corresponding functions.

[0038] The adjustment accuracy of the first fine-tuning component 241, the second fine-tuning component 242, the third fine-tuning component 243, the fourth fine-tuning component 244, and the fifth fine-tuning component 245 can all reach 0.001 mm.

[0039] When specifically configuring the aforementioned grabbing unit 25, such as Figure 5 As shown, in one optional implementation, the gripping unit 25 includes a support base 252 disposed on the frame 1 and a three-axis adjustment part 253 disposed on the support base 252. The gripping component 251 is connected to the power output end of the three-axis adjustment part 253 and can be finely adjusted in position in the first direction, the second direction and the third direction under the drive of the three-axis adjustment part 253.

[0040] After the linear conveyor unit 21 transports the lens assembly 100 and the image sensor unit 200 on the carrier platform 240 to the lens assembly removal station or calibration station, there may be a positional deviation between the gripping component 251 and the corresponding lens assembly 100 or image sensor unit 200. By driving the three-axis adjustment unit 253, the position of the gripping component 251 is finely adjusted in the first direction, the second direction and the third direction, which helps to achieve the accuracy of the relative position between the gripping component 251 and the corresponding lens assembly 100 or image sensor unit 200.

[0041] It should be noted that when assembling lens modules of the same model, the relative position between the gripping component 251 and the corresponding lens component 100 or image sensor unit 200 is usually adjusted only during the first assembly using the three-axis adjustment unit 253. In subsequent assembly processes, the adjustment is made only by the adjustment unit 24, which simplifies the control process and improves adjustment efficiency.

[0042] Specifically, when configuring the aforementioned three-axis adjustment unit 253, the three-axis adjustment unit 253 may include a first adjustment unit 2531 disposed on the frame 1, and a support base 252 disposed at the power output end of the first adjustment unit 2531 (i.e., disposed on the frame 1 via the first adjustment unit 2531), and capable of fine-tuning its position in the second direction under the drive of the first adjustment unit 2531. The gripping component 251 may be disposed at the end of the support base 252 opposite to the first adjustment unit 2531 (i.e., indirectly disposed at the power output end of the three-axis adjustment unit 253).

[0043] Furthermore, the three-axis adjustment unit 253 may also include a second adjustment unit 2532 disposed on the support base 252 away from the first adjustment unit 2531. In this case, the gripping component 251 is disposed on the power output end of the second adjustment unit 2532 and can be finely adjusted in a third direction by the drive of the second adjustment unit 2532.

[0044] Furthermore, the three-axis adjustment unit 253 may also include a third adjustment unit 2533 disposed at the power output end of the second adjustment unit 2532. In this case, the gripping component 251 is disposed at the power output end of the third adjustment unit 2533 and can perform fine-tuning of its position in the first direction under the drive of the third adjustment unit 2533.

[0045] The adjustment accuracy of the first adjustment part 2531, the second adjustment part 2532 and the third adjustment part 2533 can all reach 0.001 mm. In one optional implementation, the first adjustment part 2531, the second adjustment part 2532 and the third adjustment part 2533 can all include a micrometer knob type linear slide.

[0046] In one optional implementation of the gripping component 251, the gripping component 251 includes a pneumatic gripper.

[0047] In other implementations, the gripping component 251 may also include an electric gripper, etc.

[0048] In one optional implementation, the alignment mechanism 2 includes a lifting unit 26 disposed at the power output end of the linear conveying unit 21, and an adjustment unit 24 disposed at the power output end of the lifting unit 26, so that the gripping unit 25 can take the lens assembly 100 from the first region 300.

[0049] In this embodiment, the linear conveying unit 21 and the lifting unit 26 can both include pneumatic slides or electric slides, and their actions can be controlled by a PLC (programmable logic controller).

[0050] To enable more precise adjustment of the position of the grabbing component 251, one possible implementation is as follows: Figures 5-6As shown, the gripping unit 25 includes a fixed plate 254 fixed to the power output end of the three-axis adjustment section 253, a floating plate 255 disposed opposite to the fixed plate 254, and a fine-tuning component disposed on the fixed plate 254 and acting on the floating plate 255. The fixed plate 254 and the floating plate 255 are connected by an elastic connecting component. The fine-tuning component is used to adjust the tilt of the floating plate 255 relative to the frame 1. The gripping component 251 is disposed on the floating plate 255. Thus, the tilt of the gripping component 251 relative to the frame 1 can be adjusted by the fine-tuning component.

[0051] When using the lens module assembly device provided in this embodiment, when assembling lens modules of the same model, it is usually only necessary to adjust the gripping component 251 through the fine-tuning component during the first assembly. In subsequent assembly processes, only the adjustment unit 24 is used for adjustment, which simplifies the control process and improves adjustment efficiency.

[0052] Furthermore, in an alternative implementation, the floating plate 255 is located above the fixed plate 254, and the fine-tuning assembly includes two fine-tuning units spaced apart. Each fine-tuning unit includes a threaded portion 256 disposed on the fixed plate 254 and a fine-tuning screw 257 threadedly connected to the corresponding threaded portion 256.

[0053] For example, two fine-tuning units may be spaced apart along a first direction; the fine-tuning unit may include a sleeve disposed on a fixed plate 254, the inner surface of which is formed with the aforementioned threaded portion 256.

[0054] The fine-tuning unit has high precision, and machining the threaded part 256 on the inner surface of the sleeve is more cost-effective than machining the thread directly on the fixed plate 254.

[0055] In one optional implementation, the elastic connection assembly includes at least two first elastic members 258 spaced apart along a first direction and at least two second elastic members 259 spaced apart along a second direction. Each elastic member is connected at one end to a fixed plate 254 and at the other end to a floating plate 255.

[0056] For example, each elastic element may include a spring. The fixed plate 254 and the floating plate 255 are provided with through holes corresponding to each spring. Both ends of the spring pass through the corresponding through holes and are connected with cross pins 27, thereby fixing the spring between the fixed plate 254 and the floating plate 255.

[0057] Of course, in other implementations, the number of first elastic elements 258 can be greater than two, for example, including three, four or five spaced apart along the first direction; the number of second elastic elements 259 can also be greater than two, for example, including three, four or five spaced apart along the second direction.

[0058] To improve the stability of the gripping component 251, in one optional implementation, a support body 250 is provided between the fixed plate 254 and the floating plate 255. Both the fixed plate 254 and the floating plate 255 abut against the support body 250 and can rotate relative to the support body 250.

[0059] For example, the support 250 can be a sphere, and both the fixed plate 254 and the floating plate 255 are provided with grooves for limiting the position of the sphere.

[0060] Furthermore, the aforementioned groove can be a spherical groove.

[0061] Please continue to refer to Figure 6 In one specific implementation, the support 250, the elastic connection component, and the fine-tuning component can be arranged sequentially along the direction away from the gripping component 251.

[0062] The lens assembly 100 and the image sensor unit 200 can be bonded together with a curing adhesive (e.g., UV curing adhesive). In one optional implementation, the lens module assembly device includes a dispensing mechanism 4 for dispensing adhesive into the non-photosensitive area of ​​the image sensor unit 200 so that the lens assembly 100 can be connected to the image sensor unit 200.

[0063] The fixing mechanism 3 includes a curing lamp assembly 31 disposed on the gripping assembly 251. The curing lamp assembly 31 is used to cure the curing adhesive on the image sensor unit 200 after position correction, so as to fix the lens assembly 100 to the image sensor unit 200.

[0064] The curing lamp assembly 31 is mounted on the gripping assembly 251 and its relative position to the gripping assembly 251 is fixed, so that the adjustment and irradiation position are the same, which helps to accelerate the manufacturing process, improve curing efficiency, and is universal for various models; at the same time, it can also simplify design and assembly.

[0065] For example, such as Figure 3 As shown, the curing lamp assembly 31 includes a U-shaped curing lamp mounting base and a plurality of curing lamps distributed circumferentially along the curing lamp mounting base. The open end of the U-shaped curing lamp mounting base is fixed to the fixing part of the gripping assembly 251, and the side wall of the U-shaped curing lamp mounting base is provided with a notch for the lens assembly 100 to pass through.

[0066] In one alternative implementation, the number of curing lamps can be three, four, or five, etc.

[0067] In one optional implementation, the lens module assembly device includes a test plate disposed directly above the gripping component 251 and a backlight plate located on the side of the test plate opposite to the gripping component 251. The test plate has a test pattern. For example, the test plate can be a chart.

[0068] In one optional implementation, the lens module assembly device includes a control unit that is signal-connected to the second positioning unit 23. The control unit includes a controller and a display screen that is electrically connected to the controller. The image sensor unit 200 is disposed on the second positioning unit 23 and can be electrically connected to the controller. The display screen is used to display adjustment instructions that require human operation for the first fine-tuning component 241, the second fine-tuning component 242, the third fine-tuning component 243, the fourth fine-tuning component 244, and the fifth fine-tuning component 245.

[0069] In one alternative implementation, such as Figure 7 As shown, the lens module assembly device includes a dirt detection unit 5. The dirt detection unit 5 includes a base mounted on the frame 1 and a microscope 51 mounted on the side of the base away from the frame 1. The base has a detection area for mounting the image sensor unit 200 to be tested. The microscope 51 is located directly above the detection area and is used to detect whether there are dirt spots in the photosensitive area of ​​the image sensor unit 200.

[0070] The lens module assembly device provided in this embodiment can be used for the assembly of miniaturized lens modules, such as lens modules in medical devices like gastroscopes and colonoscopes, and can also be used for the assembly of other lens modules. It can improve product quality by about 30% and improve assembly efficiency by about 60%.

[0071] The following is a brief description of a method for assembling a lens module using a lens module assembly device provided in this embodiment. The method includes the following steps:

[0072] Step 1: Check the photosensitive area of ​​the image sensor unit 200 to be assembled under microscope 51 for dirt spots. If there are any, clean the dirt spots. If not, place the image sensor unit 200 to be assembled on the positioning seat (i.e., the second positioning part 23) provided with the Pogo Pin connector.

[0073] Step 2: Place the positioning seat on the dispensing mechanism 4 (e.g., a three-axis dispensing machine) and dispense adhesive onto at least a portion of the non-photosensitive area of ​​the image sensor unit 200 (CCD).

[0074] Step 3: Place the positioning seat of the image sensor unit 200 after dispensing in Step 2 onto the support platform 240 at the power output end of the adjustment unit 24; obviously, the positioning seat and the support platform 240 are detachably connected.

[0075] Step 4: Place the lens assembly 100 (Lens) into the first positioning part 22 on the support platform 240 at the power output end of the adjustment unit 24;

[0076] Step 5: The linear conveyor unit 21 drives the carrier platform 240 to move so that the lens moves directly below the gripping component 251; the lifting unit 26 moves the first positioning part 22 where the lens is placed upward to the clamping position of the gripping component 251, and the gripping component 251 grips the lens.

[0077] Step 6: Reset the lifting unit 26;

[0078] Step 7: The linear conveyor unit 21 moves the image sensor unit 200 on the positioning seat to the calibration (AA) station (i.e., directly below the Lens);

[0079] It should be noted that at this time, the bottom end of the lens assembly 100 is embedded in the curing adhesive on the image sensor unit 200 and is not in contact with the image sensor unit 200.

[0080] Step 8: Adjust the position of the image sensor unit 200;

[0081] For example: Adjust the lifting unit 26 to coarsely adjust the position of the image sensor unit 200 in a third direction (this step is controlled by the control unit) → Manually adjust the first fine-tuning component 241 according to the display result of the display screen → Manually adjust the second fine-tuning component 242 according to the display result of the display screen → Manually adjust the fifth fine-tuning component 245 according to the display result of the display screen → Manually adjust the third fine-tuning component 243 according to the display result of the display screen → Manually adjust the fourth fine-tuning component 244 according to the display result of the display screen → Adjust the lifting unit 26 to precisely adjust the position of the image sensor unit 200 in a third direction (this step is controlled by the control unit).

[0082] Step 9: Curing the adhesive at the junction of the lens assembly 100 and the image sensor unit 200 by the curing lamp assembly 31.

[0083] By moving the support platform 240 and fixing the gripping component 251, the present invention can effectively determine the relative position of the lens component 100 gripped by the gripping component 251 with other processing instruments (such as, but not limited to, curing lamp component 31), ensuring the reliability and efficiency of the processing steps, and further reducing the number of workstations included in the lens module assembly device to reduce the size of the assembly device.

[0084] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A lens module assembly device, characterized in that, include: frame; The alignment mechanism includes a linear conveyor unit mounted on the frame, an adjustment unit mounted on the power output end of the linear conveyor unit, and a gripping unit mounted on the frame. The power output end of the adjustment unit is provided with a support platform. The support platform has a first area for mounting a lens assembly and a second area for mounting an image sensor unit. The support platform can switch between a loading station, a lens assembly removal station, and a calibration station under the drive of the linear conveyor unit. The gripping unit includes a gripping component. When the support platform is located at the lens assembly removal station, the gripping component is positioned directly above the first area and is used to grip the lens assembly located in the first area. The adjustment unit is used to correct the position of the support platform to correct the relative position between the lens assembly gripped by the gripping component and the image sensor unit located on the support platform at the calibration station. A fixing mechanism is used to fix the lens assembly onto the image sensor unit after position correction; The gripping unit includes a support base mounted on the frame and a three-axis adjustment part mounted on the support base. The gripping assembly is connected to the power output end of the three-axis adjustment part and can be finely adjusted in position in the first direction, the second direction, and the third direction under the drive of the three-axis adjustment part. The gripping unit includes a fixed plate fixed to the power output end of the three-axis adjustment unit, a floating plate disposed opposite to the fixed plate, and a fine-tuning component disposed on the fixed plate and acting on the floating plate. The fixed plate and the floating plate are connected by an elastic connection component. The fine-tuning component is used to adjust the tilt of the floating plate relative to the frame. The gripping component is disposed on the floating plate.

2. The lens module assembly apparatus according to claim 1, characterized in that, The power output end of the linear conveying unit can reciprocate in the first direction; The adjustment unit includes a first fine-tuning component, which is disposed at the power output end of the linear conveying unit. The support platform is disposed at the power output end of the first fine-tuning component and can be finely adjusted in position in the first direction under the drive of the first fine-tuning component.

3. The lens module assembly apparatus according to claim 2, characterized in that, The adjustment unit includes a second fine-tuning component, which is disposed at the power output end of the first fine-tuning component. The support platform is disposed at the power output end of the second fine-tuning component and can be fine-tuned in position in a second direction under the drive of the second fine-tuning component. The first direction is perpendicular to the second direction, and both the first direction and the second direction are parallel to the horizontal plane.

4. The lens module assembly apparatus according to claim 3, characterized in that, The adjustment unit includes a third fine-tuning component, which is disposed at the power output end of the second fine-tuning component. The support platform is disposed at the power output end of the third fine-tuning component and can rotate around the first axis under the drive of the third fine-tuning component to perform fine-tuning of the position. The extension direction of the first axis is parallel to the first direction.

5. The lens module assembly apparatus according to claim 4, characterized in that, The adjustment unit includes a fourth fine-tuning component, which is disposed at the power output end of the third fine-tuning component. The support platform is disposed at the power output end of the fourth fine-tuning component and can rotate around the second axis under the drive of the fourth fine-tuning component to perform fine-tuning of the position. The extension direction of the second axis is parallel to the second direction.

6. The lens module assembly apparatus according to claim 5, characterized in that, The direction perpendicular to both the first direction and the second direction is the third direction; The adjustment unit includes a fifth fine-tuning component, which is disposed at the power output end of the fourth fine-tuning component. The support platform is disposed at the power output end of the fifth fine-tuning component and can rotate around the third axis under the drive of the fifth fine-tuning component to perform fine-tuning of the position. The extension direction of the third axis is parallel to the third direction.

7. The lens module assembly apparatus according to claim 6, characterized in that, The first fine-tuning component and / or the second fine-tuning component includes a micrometer knob-type linear slide; At least one of the third, fourth, and fifth fine-tuning components includes a micrometer knob-type rotary slide.

8. The lens module assembly apparatus according to claim 6 or 7, characterized in that, The gripping component includes a pneumatic gripper.

9. The lens module assembly apparatus according to claim 1, characterized in that, The floating plate is located above the fixed plate. The fine-tuning assembly includes two fine-tuning units spaced apart. Each fine-tuning unit includes a threaded portion disposed on the fixed plate and a fine-tuning screw threadedly connected to the corresponding threaded portion. And / or, the elastic connection assembly includes at least two first elastic elements spaced apart along the first direction, and at least two second elastic elements spaced apart along the second direction, each elastic element having one end connected to the fixed plate and the other end connected to the floating plate; And / or, a support body is provided between the fixed plate and the floating plate, and both the fixed plate and the floating plate abut against the support body and are able to rotate relative to the support body.

10. The lens module assembly apparatus according to any one of claims 1-6, characterized in that, The system includes a dispensing mechanism for dispensing adhesive into the non-photosensitive area of ​​the image sensor unit, thereby enabling the lens assembly to be connected to the image sensor unit. The fixing mechanism includes a curing lamp assembly disposed on the gripping component. The curing lamp assembly is used to cure the curing adhesive on the image sensor unit after position correction, so as to fix the lens assembly to the image sensor unit. And / or, the lens module assembly device includes a test plate disposed directly above the gripping component and a backlight plate located on the side of the test plate opposite to the gripping component, the test plate having a test pattern; And / or, the alignment mechanism includes a lifting unit disposed at the power output end of the linear conveying unit, and the adjustment unit is disposed at the power output end of the lifting unit.

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