An automatic centering, clamping and focusing module without a lens detent

Abstract

The application discloses an automatic centering clamping and focusing module of a lens without a clamping bit, which comprises a first rotating disc installed on a first supporting plate, three centering clamping jaw devices equally arranged on the first rotating disc and used for clamping a lens module, an opening ring device arranged below the first rotating disc and used for pushing open the centering clamping jaw devices, a lens device arranged above the first rotating disc and used for cooperating with the lens module to focus, and a first driving device used for driving the first rotating disc to rotate the centering clamping jaw devices to focus the lens module. The three centering clamping jaw devices equally arranged on the first rotating disc are used for clamping a focusing ring in the lens module, and then the first driving device is used for driving the first rotating disc to rotate and drive the centering clamping jaw devices to rotate around the lens module, so that the lens module is focused, and the opening ring device arranged below the first rotating disc is used for pushing the three centering clamping jaw devices to expand outward and release the lens module.

Description

Technical fields:

[0001] This invention relates to the field of automated production technology of lens modules, and specifically to an automatic centering, clamping and focusing module for lenses without locking positions. Background technology:

[0002] In the production process of camera products, the focus of the lens module needs to be adjusted after assembly to ensure the clarity of the image captured by the lens module. In the past, most lens modules had a locking structure, in which the focusing claw could be inserted into the gap of the locking structure for focusing. However, for lens modules without a locking structure, this type of focusing equipment is not suitable, as it cannot achieve the traditional method of using a claw fixture to shape and hold the lens. Therefore, the original manual focusing method is still used. After connecting the lens module to the computer, the lens module is manually twisted to achieve focus adjustment.

[0003] In view of the above, the inventors propose the following technical solution. Summary of the Invention:

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic centering clamping and focusing module for lenses without locking positions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an automatic centering clamping and focusing module for a lens without a locking mechanism, comprising a first rotating disk rotatably mounted on a first support plate, three centering grippers evenly arranged circumferentially on the first rotating disk for clamping the lens module, an opening ring device disposed below the first rotating disk for opening the centering grippers, a lens device disposed above the first rotating disk for focusing the lens module, and a first driving device for driving the first rotating disk to rotate the centering grippers to focus the lens module.

[0006] Furthermore, in the above technical solution, the centering gripper device includes a second support plate mounted on the first rotating disk and arranged radially, a gripper arm slidably disposed on the second support plate and used to press and clamp the lens module, a gripper opening cam disposed at the lower end of the gripper arm and used to contact the opening ring device and be pushed away to release the lens module, and a first clamping spring disposed at the rear end of the gripper arm and used to push the gripper arm to maintain the clamping tendency of the lens module.

[0007] Furthermore, in the above technical solution, the first rotating disk is also equipped with a triangular positioning plate assembly for centering the lens module, and the first support plate is also provided with a gripper elasticity adjustment device and an adjustment pressure monitoring device located next to the first rotating disk for adjusting the clamping force of the centering gripper device.

[0008] Furthermore, in the above technical solution, the centering gripper device further includes a first linear slide rail disposed on the lower end face of the second support plate and used for mounting the gripper arm, a second linear slide rail disposed on the upper end face of the second support plate and used to be parallel to the first linear slide rail, a movable pressure adjusting plate slidably mounted on the second linear slide rail and used to push and compress the first clamping spring, and a spring force adjusting screw disposed on the second support plate and capable of matching and engaging with the gripper spring force adjusting device to push the movable pressure adjusting plate to move. The upper end face of the second support plate is also provided with a nut seat located behind the second linear slide rail and used to support the spring force adjusting screw.

[0009] Furthermore, in the above technical solution, the gripper arm is slidably provided with a first support guide rod and a second support guide rod for supporting the first clamping spring on both sides, and a first pressure plate installed at the other end of the first support guide rod and the second support guide rod and located in front of the moving pressure adjusting plate. A pressure sensor is located between the first pressure plate and the moving pressure adjusting plate and is used to detect the contact pressure between the gripper arm and the lens module.

[0010] Furthermore, in the above technical solution, the triangular positioning plate assembly includes a triangular star plate installed on the first rotating disk and a positioning sleeve disposed at the center of the triangular star plate for positioning the lens module. The front end of the gripper arm is provided with an arc-shaped rubber embossed gripper for contacting the lens module.

[0011] Furthermore, in the above technical solution, the gripper elasticity adjustment device includes a first push cylinder arranged radially to the side of the first rotating disk, a first motor arranged on the first push cylinder for driving the elasticity adjustment screw to rotate, a bit arranged on the output shaft of the first motor and capable of engaging with the elasticity adjustment screw, and a coupling for connecting the first motor and the bit. The front end of the coupling is provided with a connecting sleeve for floatingly mounting the bit. A first floating spring is provided inside the connecting sleeve to press against the rear end of the bit. The rear end of the bit is mounted on the connecting sleeve through a connecting pin. The connecting sleeve 3G5 is provided with a strip-shaped through hole for the connecting pin 3G7 to pass through and move. A first retaining ring and a second retaining ring are installed at both ends of the connecting pin to press against the outside of the strip-shaped through hole.

[0012] Furthermore, in the above technical solution, the first rotating disk is also provided with three circumferentially distributed first detection probe female seats, each corresponding to one of the three centering gripper devices. The first detection probe female seats and the centering gripper devices are alternately distributed on the first rotating disk. When each centering gripper device adjusts the pressure by docking with the gripper elasticity adjustment device, the corresponding first detection probe female seat simultaneously contacts and conducts with the adjustment pressure monitoring device. The adjustment pressure monitoring device includes a second push cylinder arranged radially on the side of the first rotating disk and a first detection probe male seat installed in the second push cylinder and capable of correspondingly contacting and conducting with the first detection probe female seat.

[0013] Furthermore, in the above technical solution, a pulley assembly is provided between the first driving device and the first rotating disk for transmission. The pulley assembly is located at the lower end of the first support plate. A first tension adjusting wheel and a second tension adjusting wheel are movably provided on both sides of the first driving device to open the pulley assembly and adjust the tension. The opening ring device includes a push sleeve located below the first rotating disk and capable of being inserted into the first rotating disk to push the gripper opening cam, and a third push cylinder and a fourth push cylinder installed on both sides of the first support plate to push the push sleeve to open the gripper opening cam.

[0014] Furthermore, in the above technical solution, the focusing mechanism further includes a first X-axis motion module disposed beside the shifting mechanism, a first Y-axis motion module disposed on the first X-axis motion module, and a first Z-axis motion module disposed on the first Y-axis motion module and used to drive the first support plate to move. A first support plate is vertically disposed at the rear end of the first support plate and mounted on the first Z-axis guide rail and the second Z-axis guide rail. A third Z-axis guide rail and a fourth Z-axis guide rail are disposed on both sides of the first support plate to support the movement of the lens device. A first adjusting screw is disposed at the upper end of the first support plate to adjust the distance between the lens device and the first support plate.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: In the present invention, three centering gripper devices evenly distributed around the first rotating disk are used to clamp the focusing ring in the lens module. The first driving device drives the first rotating disk to rotate, thereby driving the centering gripper devices to rotate around the lens module, thereby realizing the focusing of the lens module. The opening ring device set below the first rotating disk pushes the three centering gripper devices to expand outward and release the lens module. Attached image description:

[0016] Figure 1 This is a structural distribution diagram of an embodiment of the present invention;

[0017] Figure 2 This is a perspective view of an embodiment of the present invention;

[0018] Figure 3 This is a perspective view of the present invention;

[0019] Figure 4 This is a partial structure of the present invention. Figure 1 ;

[0020] Figure 5 This is a partial structure of the present invention. Figure 2 ;

[0021] Figure 6 This is a partial structure of the present invention. Figure 3 ;

[0022] Figure 7 The three-dimensional centering gripper device of this invention Figure 1 ;

[0023] Figure 8 The three-dimensional centering gripper device of this invention Figure 2 ;

[0024] Figure 9 This is a perspective view of the gripper elasticity adjustment device in this invention;

[0025] Figure 10 This is a perspective view of the transposition mechanism in an embodiment of the present invention;

[0026] Figure 11 This is the structure of the positioning fixture platform in the embodiment of the present invention. Figure 1 ;

[0027] Figure 12 This is the structure of the positioning fixture platform in the embodiment of the present invention. Figure 2 . Detailed implementation method:

[0028] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0029] See Figures 1 to 12As shown, an automatic centering clamping and focusing module for a lens without a locking mechanism is provided. It includes a first rotating disk 3A rotatably mounted on a first support plate 6, three centering gripper devices 3B evenly arranged circumferentially on the first rotating disk 3A for clamping the lens module 10, an opening ring device 3C located below the first rotating disk 3A for opening the centering gripper devices 3B, a lens device 3D located above the first rotating disk 3A for focusing the lens module 10, and a first driving device 3E for driving the first rotating disk 3A to rotate the centering gripper devices 3B to focus the lens module 10. Three centering gripper devices 3B, evenly distributed around the first rotating disk, are used to clamp the focusing ring in the lens module 10. The first driving device 3E drives the first rotating disk 3A to rotate, causing the centering gripper devices 3B to rotate around the lens module 10, thereby achieving focusing of the lens module 10. The opening ring device 3C located below the first rotating disk 3A pushes the three centering gripper devices 3B to expand outward and release the lens module 10.

[0030] The centering gripper device 3B includes a second support plate 3B1 mounted on the first rotating disk 3A and arranged radially, a gripper arm 3B2 slidably disposed on the second support plate 3B1 and used to press and clamp the lens module 10, a gripper opening cam 3B3 disposed at the lower end of the gripper arm 3B2 and used to contact the opening ring device 3C and be pushed away to release the lens module 10, and a first clamping spring 3B4 disposed at the rear end of the gripper arm 3B2 and used to push the gripper arm 3B2 to maintain the clamping tendency of the lens module 10.

[0031] The first rotating disk 3A is also equipped with a triangular positioning plate assembly 3F for centering the lens module 10, and the first support plate 6 is also provided with a gripper elasticity adjustment device 3G and an adjustment pressure monitoring device 3H located next to the first rotating disk 3A for adjusting the clamping force of the centering gripper device 3B.

[0032] The centering gripper device 3B further includes a first linear slide rail 3B5 disposed on the lower end face of the second support plate 3B1 for mounting the gripper arm 3B2, a second linear slide rail 3B6 disposed on the upper end face of the second support plate 3B1 and parallel to the first linear slide rail 3B5, a movable pressure adjusting plate 3B7 slidably mounted on the second linear slide rail 3B6 for pushing and compressing the first clamping spring 3B4, and a spring force adjusting screw 3B8 disposed on the second support plate 3B1 and capable of matching and engaging with the gripper spring force adjusting device 3G to push the movable pressure adjusting plate 3B7 to move. The upper end face of the second support plate 3B1 is also provided with a nut seat 3B13 located behind the second linear slide rail 3B6 for supporting the spring force adjusting screw 3B8.

[0033] The front end of the gripper arm 3B2 is provided with an arc-shaped rubber embossed gripper 3B21 for contacting the lens module 10. The triangular positioning plate assembly 3F includes a triangular star plate 3F1 mounted on the first rotating disk 3A and a positioning sleeve 3F2 located at the center of the triangular star plate 3F1 for positioning the lens module 10. The gripper spring force adjustment device 3G includes a first push cylinder 3G1 radially disposed on the side of the first rotating disk 3A, a first motor 3G2 disposed on the first push cylinder 3G1 for driving the spring force adjustment screw 3B8 to rotate, a bit 3G3 disposed on the output shaft of the first motor 3G2 and capable of engaging with the spring force adjustment screw 3B8, and a coupling 3G4 for connecting the first motor 3G2 and the bit 3G3. The front end of the coupling 3G4 is provided with a floating mounting bracket. A connecting sleeve 3G5 is provided for mounting the bit 3G3. A first floating spring 3G6 is installed inside the connecting sleeve 3G5, pressing against the rear end of the bit 3G3. The rear end of the bit 3G3 is mounted on the connecting sleeve 3G5 via a connecting pin 3G7. The connecting sleeve 3G5 has a strip-shaped through hole 3G51 for the connecting pin 3G7 to pass through and move. A first retaining ring 3G8 and a second retaining ring 3G9 are installed at both ends of the connecting pin 3G7, pressing against the outside of the strip-shaped through hole 3G51. The front end of the bit 3G3 is chamfered to facilitate insertion of the spring-loaded adjusting screw 3B8.

[0034] The first rotating disk 3A is also provided with three circumferentially distributed first detection probe female seats 3I, which correspond one-to-one with the three centering gripper devices 3B. The first detection probe female seats 3I and the centering gripper devices 3B are alternately distributed on the first rotating disk 3A. When each centering gripper device 3B is adjusting the pressure by docking with the gripper elasticity adjustment device 3G, the corresponding first detection probe female seat 3I can make contact with the adjustment pressure monitoring device 3H. The adjustment pressure monitoring device 3H includes a second push cylinder 3H1 arranged radially on the side of the first rotating disk 3A and a first detection probe male seat 3H2 installed on the second push cylinder 3H1 and capable of making corresponding contact with the first detection probe female seat 3I.

[0035] The gripper arm 3B2 has a first support guide rod 3B9 and a second support guide rod 3B10 slidably disposed on both sides to support the first clamping spring 3B4, and a first pressure plate 3B11 installed at the other end of the first support guide rod 3B9 and the second support guide rod 3B10 and located in front of the movable pressure adjusting plate 3B7. A pressure sensor 3B12 is located between the first pressure plate 3B11 and the movable pressure adjusting plate 3B7 to detect the contact pressure between the gripper arm 3B2 and the lens module 10. The first clamping spring 3B4 includes two rods respectively installed on the first support guide rod 3B9 and the second support guide rod 3B10. The front end of the second support plate 3B1 is formed with a first limiting protrusion 3B14 extending to one side and used to limit the movement of the gripper arm 3B2. The rear end of the gripper arm 3B2 is formed with a second limiting protrusion 3B15 extending upward to the rear end of the first limiting protrusion 3B14. The second limiting protrusion 3B15 is provided with a second buffer 3B16 for contacting and buffering with the first limiting protrusion 3B14.

[0036] A pulley assembly 3J is provided between the first driving device 3E and the first rotating disk 3A for transmission. The pulley assembly 3J is located at the lower end of the first support plate 6. A first tension adjusting wheel 3K and a second tension adjusting wheel 3L are movably provided on both sides of the first driving device 3E to open the pulley assembly 3J and adjust the tension. The opening ring device 3C includes a push sleeve 3C1 located below the first rotating disk 3A and capable of being inserted into the first rotating disk 3A to push the gripper opening cam 3B3, and a third push cylinder 3C2 and a fourth push cylinder 3C3 installed on both sides of the first support plate 6 to push the push sleeve 3C1 to open the gripper opening cam 3B3. One end of the push sleeve 3C1 is conical and contacts and presses against the gripper opening cam 3B3 to push the gripper opening cam 3B3 to expand towards the outer diameter of the first rotating disk 3A. In this invention, the three centering gripper devices 3B maintain a clamping force relative to each other at the center through the reset force of the first clamping spring 3B4. When it is necessary to position the lens module 10, the third push cylinder 3C2 and the fourth push cylinder 3C3 simultaneously drive the push sleeve 3C1 to insert into the first rotating disk 3A and contact and press against the gripper opening cam 3B3. The push sleeve cam 3B3 drives the gripper arm 3B2 to move outward, compressing the first clamping spring 3B4. This forms a clamping space at the center of the docking of the three centering gripper devices 3B. After the lens module 10 is inserted into the clamping space between the three centering gripper devices 3B, the third push cylinder 3C2 and the fourth push cylinder 3C3 simultaneously drive the push sleeve 3C1 to push out of the first rotating disk 3A. This causes the first clamping spring 3B4 in the three centering gripper devices 3B, which has lost its clamping force, to push the gripper arm 3B2 to release the lens module 10. Similarly, when the lens module 10 is released, the opening ring device 3C performs the same action to push the three centering gripper devices 3B to expand outward and release the lens module 10, thereby achieving the clamping and releasing of the lens module 10.

[0037] The focusing mechanism 3 further includes a first X-axis motion module 31 disposed beside the shifting mechanism 2, a first Y-axis motion module 32 disposed on the first X-axis motion module 31, and a first Z-axis motion module 33 disposed on the first Y-axis motion module 32 for driving the first support plate 6 to move. A first support plate 313 is vertically disposed at the rear end of the first support plate 6 and mounted on a first Z-axis guide rail 311 and a second Z-axis guide rail 312. A third Z-axis guide rail 314 and a fourth Z-axis guide rail 315 are disposed on both sides of the first support plate 313 for supporting the movement of the lens device 3D. A first adjusting screw 316 is disposed at the upper end of the first support plate 313 for adjusting the distance between the lens device 3D and the first support plate 6. The distance between the lens device 3D and the lens module 10 is 9mm.

[0038] A camera 34 for visual positioning of the lens module 10 and a laser height measuring device 35 for accurately detecting the height of the first support plate 6 driven by the first Z-axis motion module 33 are provided on one side of the first support plate 6. The camera 34 takes pictures of the lens module 10 to determine its precise position, so that the first X-axis motion module 31, the first Y-axis motion module 32 and the first Z-axis motion module 33 can cooperate to move the first rotating disk 3A onto the lens module 10 and make the lens module 10 accurately pass into the positioning sleeve 3F2 of the triangular positioning plate assembly 3F to prevent the lens module 10 from colliding and being damaged with the triangular positioning plate assembly 3F. The laser height measuring device 35 monitors the height of the first support plate 6 in real time to prevent the lens module 10 from colliding and being damaged with the lens device 3D when passing through the triangular positioning plate assembly 3F.

[0039] In summary, this invention is primarily applied in the production process of lenses without a locking mechanism. Because the lens module 10 lacks a locking structure, it is impossible to use a traditional clamping fixture to hold the lens module 10 in place, thus preventing the lens module 10 from being locked and rotated for automatic focus adjustment in the Z-axis. To address this issue, an innovative design uses three centering gripper devices 3B to clamp the lens module 10. Driven by the first drive device 3E, these three centering gripper devices 3B rotate via the first rotating disk 3A, enabling automatic focus adjustment. Furthermore, the three centering gripper devices 3B simultaneously clamp and release the lens module 10 through the up-and-down movement of the opening ring device 3C. The overall mechanism module also includes three motion modules: a first X-axis motion module 31, a first Y-axis motion module 32, and a first Z-axis motion module 33, as well as an automatic camera alignment device 34 and a laser height measurement device 35, ensuring the detection and automatic alignment of the adjustment target.

[0040] In one embodiment: A focusing device for a lens without petals includes a housing 1, a shifting mechanism 2 disposed within the housing 1 for driving a lens module 10 to shift positions, a focusing mechanism 3 disposed beside the shifting mechanism 2 for focusing the lens module 10, a dispensing mechanism 4 disposed beside the focusing mechanism 3 for dispensing adhesive to fix the focused lens module 10, and a UV curing mechanism 5 disposed beside the dispensing mechanism 4 for UV curing adhesive. The focusing mechanism 3 includes a component rotatably mounted on the housing 1. The system comprises a first rotating disk 3A on a support plate 6, three equally spaced circumferentially arranged centering gripper devices 3B for clamping the lens module 10, an opening ring device 3C located below the first rotating disk 3A for opening the centering gripper devices 3B, a lens device 3D located above the first rotating disk 3A for focusing the lens module 10, and a first driving device 3E for driving the first rotating disk 3A to rotate the centering gripper devices 3B to focus the lens module 10. The lens module 10 is assembled by distributing three directions around the switching mechanism 2 to the focusing mechanism 3, the dispensing mechanism 4, and the UV curing mechanism 5, with the remaining direction designated as the loading and unloading station. Three equally spaced centering grippers 3B are positioned in the focusing mechanism 3 to clamp the focusing ring in the lens module 10. The first drive device 3E drives the first rotating disk 3A to rotate, causing the centering grippers 3B to rotate around the lens module 10, thus achieving focusing of the lens module 10. An opening ring device 3C located below the first rotating disk 3A pushes the three centering grippers 3B outward to loosen the lens module 10. The switching mechanism 2 then moves the focused lens module 10 sequentially to the dispensing mechanism 4 and the UV curing mechanism 5 to fix the lens module 10.

[0041] Above the switching mechanism 2, a large light plate module 7 is also provided, and the switching mechanism 2 is a four-station switching mechanism. The focusing mechanism 3, the dispensing mechanism 4, and the UV curing mechanism 5 are arranged in sequence around the three stations of the switching mechanism 2, and the other station of the switching mechanism 2 is set as a manual loading and unloading station.

[0042] The switching mechanism 2 includes a hollow rotating platform 21, a second rotating disk 22 arranged in a cross shape on the hollow rotating platform 21, a mercury slip ring 23 arranged in the middle of the second rotating disk 22 for configuring air pipes and lines, four positioning fixtures 24 arranged at the corners of the second rotating disk 22 for positioning the lens module 10, and a PCBA adapter plate 25 arranged at the lower end of the positioning fixtures 24 for connecting the lens module 10 to transmit data. The focusing mechanism 3, the dispensing mechanism 4, and the manual loading and unloading station are all equipped with conductive connector devices 26 located below the second rotating disk 22 and capable of being lifted to contact and conduct with the PCBA adapter plate 25. A data cable 27 is provided between the lens module 10 and the PCBA adapter plate 25. Four positioning fixtures 24 for holding and clamping lens modules 10 are set on the second rotating disk 22. By evenly distributing the four positioning fixtures 24 around the second rotating disk 22, the hollow rotating platform 21 can drive the second rotating disk 22 to switch positions at equal angles each time. This allows the four positioning fixtures 24 on the second rotating disk 22 to switch sequentially between the manual loading and unloading position, the focusing mechanism 3, the dispensing mechanism 4, and the UV curing mechanism 5, and enables the four positions to work synchronously, thereby improving production efficiency.

[0043] The positioning fixture platform 24 includes a support fixture frame 241 disposed on the PCBA adapter plate 25 for supporting the lens module 10, and a fixture cover plate 242 hinged to the support fixture frame 241 for covering and fixing the lens module 10. The upper end face of the PCBA adapter plate 25 is provided with a plurality of connector interfaces 251 that match the data cable 27, and the lower end face of the PCBA adapter plate 25 is provided with a second detection probe female socket 252 for mating and docking with the conductive connector device 26. The conductive connector device 26 includes a fifth push cylinder 261. The system includes a second detection probe male seat 262 mounted on the fifth push cylinder 261 and used for mating and interlocking with the second detection probe female seat 252; a first positioning pin 263 and a second positioning pin 264 mounted on both sides of the second detection probe male seat 262 and used for docking and positioning at the bottom of the second rotating disk 22; and a first buffer 265 mounted on the fifth push cylinder 261 and used for contacting the bottom of the second rotating disk 22. The bottom of the second rotating disk 22 is provided with a first pin hole seat 221 and a second pin hole seat 222 corresponding to the first positioning pin 263 and the second positioning pin 264, respectively.

[0044] In summary, during operation of this embodiment, an employee installs the lens module 10 onto the positioning fixture 24 from the manual loading / unloading station, and connects the lens module 10 to the PCBA adapter board 25 via the data cable 27. Then, the lens module 10 is transferred to the focusing mechanism 3 via the switching mechanism 2. Further, the first X-axis motion module 31, the first Y-axis motion module 32, and the first Z-axis motion module 33 in the focusing mechanism 3 cooperate to mount the first rotating disk 3A onto the lens module 10 in the positioning fixture 24. During this process, the opening ring... Device 3C pushes the three centering gripper devices 3B outwards, facilitating the insertion of the lens module 10 into the center of the three centering gripper devices 3B. Then, the opening ring device 3C releases the three centering gripper devices 3B to clamp the lens module 10. Further, the conductive connector device 26 below the focusing mechanism 3 contacts and conducts communication with the PCBA adapter plate 25, and the first drive device 3E drives the first rotating disk 3A to rotate through the pulley assembly 3J, causing the adjustment pressure monitoring device 3H and the gripper elasticity adjustment device 3G to sequentially connect with the first... The probe socket 3I and the centering gripper 3B are connected. The gripper spring force adjustment device 3G, based on data feedback from the pressure sensor 3B12, drives the spring force adjustment screw 3B8 to rotate, adjusting the pressure of each centering gripper 3B in contact with the lens module 10. This ensures accurate pressure measurement and prevents damage to the lens module 10. Furthermore, based on the automatic image analysis program performed by the lens device 3D in conjunction with the lens module 10, the adjustment angle is determined according to the calculated score, allowing for quick and accurate finding of the optimal focal length. The first drive device 3E drives the first rotating disk 3A to rotate via the pulley assembly 3J to complete the focusing of the lens module 10. Further, the switching mechanism 2 transfers the lens module 10 to the dispensing mechanism 4 for dispensing, then the switching mechanism 2 transfers the lens module 10 to the UV curing mechanism 5 for adhesive curing. Finally, the switching mechanism 2 transfers the lens module 10 to the manual loading / unloading station, where the operator removes the focused lens module 10 and replaces it with the lens module 10 to be focused, thus achieving continuous cyclic focusing of the lens module 10. This focusing equipment is mainly for lenses without petals. It uses a three-jaw chuck to grip the lens for focusing. Pressure sensors adjust the pressure of each jaw to ensure uniform force on the lens and maintain focusing stability. After focusing, the image is visually inspected, and adhesive is applied to cure the lens, ensuring the focal length remains constant. The three-jaw chuck automatically focuses the lens, and the program automatically analyzes the image, determining the adjustment angle based on the calculated score. This allows for quick and accurate finding of the optimal focal length, improving work speed and ensuring image quality.

[0045] After adopting the above solution, this embodiment has the following beneficial effects:

[0046] 1. A three-jaw automatic centering mechanism is used to clamp lenses without a locking structure. At the same time, an intelligent force monitoring sensor is added to ensure that the clamping force of the three centering jaw devices 3B is consistent.

[0047] 2. Develop and design an automatic up-and-down opening ring structure and a synchronous slider positioning mechanism to ensure the synchronicity of the clamping and releasing actions of the three jaws;

[0048] 3. The design fully considers ensuring the concentricity of the product and the focusing mechanism. By using a lens centering calibration fixture, an open-ring centering fixture, and a camera 34 that automatically detects the product position and the fixture's XYZ automatic adjustment structure, the concentricity of the product and the focusing mechanism is ensured during focusing.

[0049] 4. The overall mechanism module has three motion modules (XYZ), a camera 34 for automatic alignment, and a laser height measuring device 35, plus an intelligent closed-loop control system to ensure the detection and automatic adjustment of the focusing object.

[0050] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An automatic centering, clamping, and focusing module for a lens without a locking mechanism, characterized in that, It includes a first rotating disk (3A) that is rotatably mounted on a first support plate (6), three centering gripper devices (3B) that are equally circumferentially arranged on the first rotating disk (3A) and used to clamp the lens module (10), an opening ring device (3C) that is arranged below the first rotating disk (3A) and used to open the centering gripper device (3B), a lens device (3D) that is arranged above the first rotating disk (3A) and used to focus the lens module (10), and a first driving device (3E) that drives the first rotating disk (3A) to rotate the centering gripper device (3B) to focus the lens module (10). The centering gripper device (3B) includes a second support plate (3B1) mounted on the first rotating disk (3A) and arranged radially; a gripper arm (3B2) slidably mounted on the second support plate (3B1) for pressing and clamping the lens module (10); a gripper opening cam (3B3) located at the lower end of the gripper arm (3B2) for contacting the opening ring device (3C) and being pushed away to release the lens module (10); a first clamping spring (3B4) located at the rear end of the gripper arm (3B2) for pushing the gripper arm (3B2) to maintain a clamping tendency on the lens module (10); a first linear slide rail (3B5) located on the lower end face of the second support plate (3B1) for mounting the gripper arm (3B2); and a second linear slide rail (3B6) located on the upper end face of the second support plate (3B1) for being parallel to the first linear slide rail (3B5). A movable pressure adjusting plate (3B7) is mounted on the second linear slide rail (3B6) and used to push and compress the first clamping spring (3B4). An elastic adjusting screw (3B8) is mounted on the second support plate (3B1) and can be matched and docked with the gripper elastic adjusting device (3G) to push the movable pressure adjusting plate (3B7) to move. A first support guide rod (3B9) and a second support guide rod (3B10) for supporting the first clamping spring (3B4) are slidably mounted on both sides of the gripper arm (3B2). A first pressure plate (3B11) is mounted on the other end of the first support guide rod (3B9) and the second support guide rod (3B10) and located in front of the movable pressure adjusting plate (3B7). A pressure sensor (3B12) is located between the first pressure plate (3B11) and the movable pressure adjusting plate (3B7) and is used to detect the contact pressure between the gripper arm (3B2) and the lens module (10). The front end of the second support plate (3B1) is formed with a first limiting protrusion (3B14) extending to one side and used to limit the movement of the gripper arm (3B2). The rear end of the gripper arm (3B2) is formed with a second limiting protrusion (3B15) extending upward to the rear end of the first limiting protrusion (3B14). The second limiting protrusion (3B15) is provided with a second buffer (3B16) for contacting and buffering with the first limiting protrusion (3B14).

2. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 1, characterized in that: The first rotating disk (3A) is also equipped with a triangular positioning plate assembly (3F) for centering the lens module (10), and the first support plate (6) is also provided with a gripper elasticity adjustment device (3G) and an adjustment pressure monitoring device (3H) located next to the first rotating disk (3A) for adjusting the clamping force of the centering gripper device (3B).

3. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 2, characterized in that: The centering gripper device (3B) also includes a nut seat (3B13) located behind the second linear slide rail (3B6) and used to support the elastic adjustment screw (3B8) on the upper end surface of the second support plate (3B1).

4. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 2, characterized in that: The triangular positioning plate assembly (3F) includes a triangular star plate (3F1) mounted on the first rotating disk (3A) and a positioning sleeve (3F2) located at the center of the triangular star plate (3F1) for positioning the lens module (10). The front end of the gripper arm (3B2) is provided with an arc-shaped rubber embossed gripper (3B21) for contacting the lens module (10).

5. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 1, characterized in that: The gripper spring force adjustment device (3G) includes a first push cylinder (3G1) radially disposed on the side of the first rotating disk (3A), a first motor (3G2) disposed on the first push cylinder (3G1) and used to drive the spring force adjustment screw (3B8) to rotate, a bit (3G3) disposed on the output shaft of the first motor (3G2) and capable of engaging with the spring force adjustment screw (3B8), and a coupling (3G4) for connecting the first motor (3G2) and the bit (3G3). The front end of the coupling (3G4) is provided with a floating mounting bracket. A connecting sleeve (3G5) for mounting the bit (3G3) is provided. A first floating spring (3G6) is provided inside the connecting sleeve (3G5) to press against the rear end of the bit (3G3). The rear end of the bit (3G3) is mounted on the connecting sleeve (3G5) through a connecting pin (3G7). The connecting sleeve 3G5 is provided with a strip-shaped through hole (3G51) for the connecting pin 3G7 to pass through and move. A first retaining ring (3G8) and a second retaining ring (3G9) are installed at both ends of the connecting pin (3G7) to press against the outside of the strip-shaped through hole (3G51).

6. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 2, characterized in that: The first rotating disk (3A) is also provided with three first detection probe female seats (3I) evenly distributed around the circumference and corresponding one-to-one with the three centering gripper devices (3B). The first detection probe female seats (3I) and the centering gripper devices (3B) are alternately distributed on the first rotating disk (3A). When each centering gripper device (3B) adjusts the pressure by docking with the gripper elasticity adjustment device (3G), the corresponding first detection probe female seat (3I) simultaneously contacts and conducts with the adjustment pressure monitoring device (3H). The adjustment pressure monitoring device (3H) includes a second push cylinder (3H1) arranged radially on the side of the first rotating disk (3A) and a first detection probe male seat (3H2) installed on the second push cylinder (3H1) and capable of correspondingly contacting and conducting with the first detection probe female seat (3I).

7. The automatic centering, clamping, and focusing module for a lens without a locking mechanism according to claim 1, characterized in that: A pulley assembly (3J) is provided between the first drive device (3E) and the first rotating disk (3A) for transmission. The pulley assembly (3J) is located at the lower end of the first support plate (6). The first drive device (3E) is provided with a first tension adjusting wheel (3K) and a second tension adjusting wheel (3L) on both sides in a movable manner for opening the pulley assembly (3J) and adjusting the tension. The opening ring device (3C) includes a push sleeve (3C1) located below the first rotating disk (3A) and capable of being inserted into the first rotating disk (3A) to push the gripper opening cam (3B3), and a third push cylinder (3C2) and a fourth push cylinder (3C3) installed on both sides of the first support plate (6) for pushing the push sleeve (3C1) to open the gripper opening cam (3B3).

8. An automatic centering clamping and focusing module for a lens without a locking mechanism according to any one of claims 1-7, characterized in that: It also includes a first X-axis motion module (31), a first Y-axis motion module (32) disposed on the first X-axis motion module (31), and a first Z-axis motion module (33) disposed on the first Y-axis motion module (32) and used to drive the first support plate (6) to move. A first support plate (313) is vertically disposed at the rear end of the first support plate (6) and mounted on the first Z-axis guide rail (311) and the second Z-axis guide rail (312). A third Z-axis guide rail (314) and a fourth Z-axis guide rail (315) are disposed on both sides of the first support plate (313) for supporting the movement of the lens device (3D). A first adjusting screw (316) is disposed at the upper end of the first support plate (313) for adjusting the distance between the lens device (3D) and the first support plate (6).

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