Automatic press ring locking machine

Abstract

The application provides a press ring automatic locking machine, and relates to the technical field of optical lens equipment. The application comprises a workbench; a locking mobile platform is arranged on the workbench, a lens bin and a top column are arranged on the locking mobile platform, the lens bin is used for placing and fixing a lens, a reduced-diameter receiving table is formed at the top of the top column, the receiving table is used for mounting a press ring, a capsule is arranged on the periphery of the receiving table, the capsule can expand or shrink by inflating or discharging hot air flow to expand the press ring; a locking mechanism is arranged on the workbench, the locking mobile platform can be moved to a locking position corresponding to the locking mechanism, the locking mechanism comprises a locking head, a suction port is arranged at the bottom end of the locking head, the suction port is used for sucking the press ring on the receiving table, so that the press ring is locked on the lens through rotating and pressing actions. Compared with the prior art, the application has the advantages of guaranteeing the press ring pressing effect, reducing the risk of thread damage and improving the stability after locking.

Description

Technical Field

[0001] This invention relates to the field of optical lens equipment technology, and in particular to an automatic lens clamping machine. Background Technology

[0002] With the continuous advancement of imaging technology and the consumer market's pursuit of high-definition imaging, the manufacturing and assembly processes of optical lenses are developing towards higher precision and stability. The lens element, as an indispensable component in the lens structure, not only bears the responsibility of pressing the lens elements together but also restricts their axial displacement. Its assembly quality directly affects the lens's optical performance and mechanical stability.

[0003] However, through long-term research and actual assembly, the inventors discovered that in existing locking devices, the pressure ring is prone to some subtle but performance-affecting phenomena after locking. For example, during the rotation locking process of the pressure ring, minor damage often occurs between the pressure ring and the threads, manifesting as localized seizing, stripping, or even loosening after long-term use. This not only affects the stability of the fit between the pressure ring and the lens barrel but may also cause slight displacement of the lens assembly during lens use, resulting in decreased image quality or insufficient overall assembly stability. Summary of the Invention

[0004] The purpose of this application is to provide an automatic locking and fastening machine for pressure rings, so as to solve the above-mentioned technical problems existing in the prior art.

[0005] This application provides an automatic locking and fastening machine for pressure rings, which adopts the following technical solution: An automatic ring fastening machine, comprising: Workbench; A locking and attaching moving platform is set on the workbench. The locking and attaching moving platform can move along the Y-axis under the action of the driving structure. The locking and attaching moving platform is provided with a lens compartment and a top column. The lens compartment is used to place and fix the lens. The top of the top column forms a receiving platform with a reduced diameter. The receiving platform is used to install the pressure ring. The outer periphery of the receiving platform is provided with a bladder. The bladder can expand or contract by filling or discharging hot air to expand the pressure ring. A locking mechanism is provided on the worktable. The locking moving platform can move to the locking position corresponding to the locking mechanism. The locking mechanism includes a locking head, which can move along the Z-axis and rotate under the action of the driving structure. The bottom end of the locking head is provided with a suction port, which is used to pick up the pressure ring on the receiving platform and place the pressure ring on the lens in the lens compartment under the drive of the moving locking head, thereby locking the pressure ring on the lens through rotation and pressing action.

[0006] Preferably, the receiving platform includes an inner support ring and a rotating ring. The inner support ring is fixedly connected to the column body of the top column, and the rotating ring is coaxially rotatably connected to the inner support ring. The bladder is embedded in the rotating ring, and a driving member is provided on the top column. The driving member is used to drive the rotating ring to rotate relative to the inner support ring.

[0007] Preferably, the driving component includes a shaft and turbofan blades disposed on the shaft. The top column has a hollow structure, and a fixing tube is provided in the hollow part of the top column. The shaft is coaxially fixedly connected to the rotating ring and passes through the fixing tube. The turbofan blades are also disposed in the fixing tube. The rotating ring has a communicating hole that communicates with the bladder and the fixing tube. The end of the fixing tube away from the rotating ring is connected to a hot air source so that when the hot air passes through the fixing tube, it drives the turbofan blades to rotate, thereby driving the rotating ring to rotate and simultaneously inflating the bladder.

[0008] Preferably, the top column is provided with a reset member, which is connected to the rotating ring and is used to reset the rotating ring to its initial position after the rotating ring has completed its rotation; And / or, the capsule is provided with a plurality of diaphragms along the axial direction, the diaphragms dividing the capsule into a plurality of chambers, and the communicating hole has a plurality of branch channels corresponding to and communicating with the plurality of chambers; And / or, the fixed tube has a turbine housing with a diameter larger than that of the fixed tube, and the interior of the turbine housing is used to mount the turbine blades.

[0009] Preferably, the reset component includes a torsion spring, and the inner support ring has an annular groove for accommodating the torsion spring. One end of the torsion spring is fixedly connected to the inner support ring, and the other end is connected to the rotating ring.

[0010] Preferably, the workbench is further provided with a pressure ring feeding module and a lens feeding module, wherein: The pressure ring feeding module includes a pressure ring feeding assembly, a pressure ring picking assembly, and a pressure ring transfer assembly. The pressure ring feeding assembly includes a pressure ring lifting chamber, which is used to stack first feeding trays and can move along the Z-axis under the action of a driving structure. The first feeding tray is used to place pressure rings. The pressure ring picking assembly includes a first picking tray, which can move along the Y-axis under the action of a driving structure to remove the first feeding trays layer by layer from the pressure ring lifting chamber and transfer them to the transfer starting point of the pressure ring transfer assembly. The pressure ring transfer assembly includes a first transfer frame and a pressure ring clamping cylinder. A portal frame is erected on the worktable along the X-axis. The first transfer frame is slidably installed on the portal frame. The pressure ring clamping cylinder is disposed on the first transfer frame and can move along the Y-axis under the action of a driving structure to clamp the pressure ring at the corresponding transfer starting point and move it to the receiving platform. The lens loading module includes a lens loading assembly, a lens picking assembly, and a lens transfer assembly. The lens loading assembly includes a lens lifting chamber, which is used to stack a second feeding tray and can move along the Z-axis under the action of a driving structure. The second feeding tray is used to place the lens. The lens picking assembly includes a second picking tray, which can move along the Y-axis under the action of a driving structure. The second picking tray is removed layer by layer from the lens lifting chamber and transferred to the transfer starting point of the lens transfer assembly. The lens transfer assembly includes a second transfer frame and a lens clamping cylinder. The second transfer frame is slidably mounted on the gantry frame. The lens clamping cylinder is disposed on the second transfer frame and can move along the Y-axis under the action of a driving structure to clamp the lens at the corresponding transfer starting point and move it into the lens compartment.

[0011] Preferably, the pressure ring lifting chamber is divided into multiple areas to hold pressure rings of different sizes. The number of pressure ring clamping cylinders corresponds to the multiple areas and is arranged in parallel on the first transfer frame. And / or, the first transfer frame is equipped with a positioning camera for positioning and detecting the pressure ring; And / or, the second transfer frame is provided with a pair of lens clamping cylinders; And / or, the locking and attaching moving platform is located in the middle of the workbench, and the pressure ring feeding module and the lens feeding module are located on opposite sides of the locking and attaching moving platform; And / or, the lens compartment on the locking mobile platform is provided in pairs, and the top column is provided in multiple positions and is located on one side of the lens compartment. And / or, a fixing cylinder is provided on the lens compartment, and a positioning plate is fixedly provided on the output shaft of the fixing cylinder, the positioning plate being used to abut against and fix the lens; And / or, a fine-tuning platform is provided below the locking moving platform, the fine-tuning platform including a driving structure in the X-axis and Y-axis directions to drive the locking moving platform to translate along the X-axis and Y-axis directions.

[0012] Preferably, the locking mechanism further includes a frame, a movable plate, a rotating base, and a balancing part. The driving structure of the locking mechanism includes a pressing cylinder and a rotating component. The movable plate is slidably mounted on the frame along the Y-axis. The rotating base is rotatably mounted on the movable plate. A central rod is rotatably mounted inside the rotating base and can move along the axial direction. The locking head is fixedly connected to the bottom end of the central rod. The pressing cylinder is fixedly mounted on the connecting frame of the movable plate, and its output shaft is connected to the central rod. A pressure sensor is provided at the connection position. The rotating component is used to drive the rotating base to rotate and drive the central rod to rotate. The balancing part is provided on the central rod to maintain its rotational balance when the central rod rotates.

[0013] Preferably, a housing is fixedly installed on the movable plate. The housing has a hollow structure. A pair of air pipe connectors are connected to the outside of the housing. The balance part includes a rotating block. The rotating block is coaxially fixed on the central rod and located inside the housing. Multiple protruding prisms are fixedly provided on the outer wall of the rotating block along the circumference. The pair of air pipe connectors are symmetrically arranged and located in the plane where the rotation center of the rotating block is located.

[0014] Preferably, the second transfer frame is provided with a pressure rod, the bottom end of the pressure rod is provided with a sliding groove, a pressure head is slidably disposed in the sliding groove, the bottom end of the pressure head is provided with a rubber head, the top end of the pressure head is provided with a first magnet, the bottom end of the sliding groove is fixedly provided with a pressure spring, and a second magnet is provided on the pressure spring, the second magnet being directly opposite the first magnet.

[0015] The present invention has the following advantages and beneficial effects: This invention utilizes a capsule mounted on the outer periphery of the receiving platform and hot airflow to drive its expansion or contraction. This allows the pressure ring to undergo minimal thermal expansion before attachment, facilitating fitting and rotational attachment with the lens, achieving immediate expansion and installation. This method enables precise fine-tuning of the pressure ring, avoiding the uneven heating and material degradation issues caused by traditional processes that rely on overall high-temperature heating. It also reduces the risk of jamming between the pressure ring and the lens during assembly. The capsule's flexible deformation characteristic provides a buffering effect when in contact with the inner wall of the pressure ring, stabilizing force application while effectively preventing damage or stress concentration on the pressure ring surface. This ensures the integrity and lifespan of the pressure ring structure, while maintaining effective pressure ring clamping, reducing the risk of thread damage, and improving post-attachment stability. Therefore, this invention improves the installation accuracy of the pressure ring while enhancing the reliability and yield rate of the assembly process.

[0016] This invention achieves automated conveying and fastening of pressure rings through the cooperation of a fastening moving platform and a fastening mechanism. The fastening moving platform moves along the Y-axis under the action of a drive structure, enabling the receiving platform and lens compartment to be quickly and accurately positioned at the fastening station. The fastening mechanism includes a fastening head that can move along the Z-axis and rotate. The bottom of the fastening head has a suction port that automatically picks up the pressure rings from the receiving platform and completes precise handling and positioning. This structural combination allows the picking, handling, placement, and spinning fastening of pressure rings to be completed under automatic control, significantly reducing manual intervention and solving the problems of low assembly efficiency, unstable operation, and significant impact on lens quality in traditional manual operations. Overall, this invention not only achieves automation, standardization, and high precision in the pressure ring assembly process but also protects both the pressure rings and the lens, possessing strong practical value and promotional significance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic ring fastening machine.

[0019] Figure 2 This is a structural diagram intended to demonstrate the locking and attachment of the mobile platform.

[0020] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0021] Figure 4 It is a cross-sectional view intended to show the top column.

[0022] Figure 5 yes Figure 4 Enlarged view of section B.

[0023] Figure 6 This is a structural diagram designed to demonstrate the pressure ring feeding module and the lens feeding module.

[0024] Figure 7 It is a cross-sectional view intended to show the compression bar.

[0025] Figure 8 This is a schematic diagram intended to illustrate the structure of the locking mechanism.

[0026] Figure 9 This is a structural diagram intended to show the locking head and the balancing part.

[0027] Figure 10 This is a top view intended to show the first feed tray.

[0028] Figure 11 This is a side view intended to show the first feeding tray.

[0029] Figure 12 This is a schematic diagram designed to show the structure of the pressure ring feeding assembly.

[0030] The diagram is marked as follows: 100. Workbench; 110. Gantry frame; 200. Locking moving platform; 210. Lens compartment; 211. Fixing cylinder; 212. Positioning plate; 220. Top column; 221. Receiving platform; 2211. Inner support ring; 22111. Ring groove; 2212. Rotating ring; 22121. Connecting hole; 22122. Branch channel; 222. Capsule body; 2221. Diaphragm; 230. Fine-tuning platform; 300. Locking Mechanism; 310, Locking head; 311, Adsorption port; 320, Frame; 330, Moving plate; 331, Connecting frame; 340, Rotary seat; 350, Balancing part; 351, Rotating block; 352, Protruding prism; 360, Downward pressure cylinder; 370, Rotating component; 380, Center rod; 381, Pressure sensor; 400, Driving component; 410, Shaft; 411, Turbine fan blade; 420, Fixed tube; 421, Vortex Fan housing; 430, Reset component; 431, Torsion spring; 500, Pressure ring feeding module; 510, Pressure ring feeding assembly; 511, Pressure ring lifting chamber; 512, First feeding tray; 520, Pressure ring picking assembly; 521, First picking tray; 530, Pressure ring transfer assembly; 531, First transfer frame; 5311, Positioning camera; 532, Pressure ring clamping cylinder; 600, Lens feeding module; 610, Lens feeding assembly; 611. Lens lifting chamber; 612. Second feeding tray; 620. Lens picking assembly; 621. Second picking tray; 630. Lens transfer assembly; 631. Second transfer frame; 632. Lens clamping cylinder; 700. Housing; 710. Air pipe connector; 800. Pressure rod; 810. Sliding groove; 811. Pressure head; 812. Rubber head; 813. First magnet; 814. Pressure spring; 815. Second magnet. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0032] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] The following is combined with Figures 1 to 12 The automatic locking and attaching machine for pressure rings provided in this application will be described in detail through specific embodiments and application scenarios.

[0034] An automatic clamping machine for clamping rings includes a worktable 100 and a clamping moving platform 200 installed in the middle of the worktable 100. The clamping moving platform 200 can move along the Y-axis under the action of a drive structure. The clamping moving platform 200 is provided with a lens compartment 210 and a top column 220. The lens compartment 210 is used to place and fix the lens. The top of the top column 220 forms a receiving platform 221 with a reduced diameter. The receiving platform 221 is used to install the clamping ring. The outer periphery of the receiving platform 221 is provided with a bladder 222. The bladder 222 can expand or contract by filling or discharging hot air to expand the clamping ring. By applying a controllable small-amplitude thermal expansion force to the clamping ring through the bladder 222, the clamping ring expands slightly before contacting the lens. This makes it easier for the clamping ring to fit into the lens positioning position and avoids the uneven high temperature, thread softening or damage caused by traditional whole heating methods, thereby ensuring the stability and safety of the clamping process. The flexible material and deformable properties of the capsule 222 can also act as a buffer during contact, reducing the risk of local stress concentration during assembly and further extending the service life of the pressure ring.

[0035] The locking mechanism 300 is installed on the workbench 100. The locking moving platform 200 can move to the locking position corresponding to the locking mechanism 300. The locking mechanism 300 includes a locking head 310. The locking head 310 is preferably a combination unit that can be precisely displaced along the Z-axis and can rotate. The bottom end of the locking head 310 is provided with an adsorption port 311 (preferably a vacuum suction cup with a soft sealing ring). The adsorption port 311 is connected to a vacuum source through a negative pressure pipeline. It is used to pick up the pressure ring from the receiving platform 221 without damage and keep it stable during movement to avoid indentations or scratches caused by mechanical clamping.

[0036] During the engagement of the clamping ring, a process of "low-speed initial engagement - gradual force application - target torque / force value termination" can be adopted: After contact, the clamping head 310 begins to rotate at an extremely low speed, while the pressing cylinder 360 gradually applies clamping force at a controlled speed and with a limited axial force (the threshold is limited by the pressure sensor 381). The rotational speed and downward pressure gradually increase according to a preset curve, and are monitored in real time by a force / torque closed loop (which can be determined jointly by a servo motor current or torque sensor and the cylinder pressure sensor 381). When the torque curve reaches a stable plateau or the predetermined axial clamping amount is reached, the controller determines that the clamping is complete and cuts off the drive, thereby avoiding thread seizing, stripping, or scratches caused by excessive instantaneous torque or bias. If an abnormal peak value (exceeding the safety threshold) is detected, the system will immediately stop rotation and reverse slightly loosen or alarm for manual / automatic handling, ensuring safe and reliable assembly. The end face of the suction port 311 adopts a soft sealing material and a slightly elastic structure, which can achieve buffered contact with micro-displacement and angular deviation, thereby further reducing the risk of scratches on the inner wall.

[0037] In this embodiment, three sets of locking mechanisms 300 are installed parallel to each other along the Y-axis. The locking heads 310 are of different sizes to accommodate different sizes of pressure rings on the lens. Of course, the number can be selected according to specific needs, and is not limited here.

[0038] It should be noted that the drive structure involved in this embodiment can be implemented using various methods, such as lead screw drive, servo / stepper motor with guide rail, cylinder or electric actuator, motor, gear, and toothed belt, depending on actual needs. For actions requiring high positioning accuracy and controllable speed (such as sliding frame positioning and rotary seat fine adjustment), a servo / stepper motor + lead screw or ball screw is preferred. This can achieve micron-level positioning control and ensure precise alignment of the pressure ring and lens before locking. For scenarios focusing on rapid switching or simple clamping actions, cylinders or electric actuators can be used to achieve rapid response and simplify the structure, thereby improving the overall system reliability and assembly efficiency. Since these transmission methods are existing technologies, they will not be elaborated upon here.

[0039] Reference Figures 3-5As shown, to prevent the pressure ring from shifting during placement, the receiving platform 221 includes an inner support ring 2211 and a rotating ring 2212. The inner support ring 2211 is fixedly connected to the column body of the top column 220, and the rotating ring 2212 is coaxially rotatably connected to the inner support ring 2211. The bladder 222 is embedded in the rotating ring 2212. A driving component 400 is provided on the top column 220, which drives the rotating ring 2212 to rotate relative to the inner support ring 2211, making it easier to align the pressure ring. With this design, even if the pressure ring has a slight positional deviation during the feeding process, it can be automatically corrected by adjusting the angle of the rotating ring 2212, ensuring the accuracy of the subsequent locking head 310 when picking up the pressure ring, thereby avoiding thread damage or pressure ring skewing caused by misaligned locking. In actual operation, after the locking moving platform 200 moves to the locking position of the locking head 310, the locking head 310 will pick up the pressure ring on the top post 220 and then move to the position where the lens needs to install the pressure ring for alignment and locking installation.

[0040] Reference Figure 4 As shown, in this embodiment, the driving component 400 includes a shaft 410 and a turbofan blade 411 fixed on the shaft 410; the top column 220 is a hollow structure, and a fixing tube 420 is provided in the hollow part of the top column 220. The fixing tube 420 is in a fixed state and is connected to an external hot air source. The shaft 410 is coaxially fixedly connected to the rotating ring 2212 and passes through the fixing tube 420. The turbofan blade 411 is also provided in the fixing tube 420; the rotating ring 2212 has a plurality of connecting holes 22121, which are connected to the chamber of the bladder 222 and the fixing tube 420. During operation, hot air is introduced through a connector at one end of the fixed pipe 420. The hot air acts on the turbofan blades 411 within the fixed pipe 420, driving the shaft 410 and the coaxially connected rotating ring 2212 to rotate. Simultaneously, some of the hot air enters the chamber of the capsule 222 through the connecting hole 22121 of the rotating ring 2212, causing the capsule 222 to expand. Thus, the inflation of the capsule 222 and the driving of the rotating ring 2212 are simultaneously achieved within a single hot airflow path. This structure, by coupling the driving and inflation functions to the same path and the same transmission component, achieves parallelization of the action steps and simplifies the system structure, which is beneficial for overall equipment automation and cycle time optimization.

[0041] It should be noted that the radial expansion of the pressure ring by the bladder 222 in this embodiment is controlled to an extremely small magnitude, preferably in the range of approximately 100 to 500 micrometers (which can be adjusted appropriately depending on the pressure ring material and specifications). This minute expansion is sufficient to reduce the resistance of the pressure ring fitting and facilitate the initial fit between the pressure ring and the lens end, but is far less than the critical value that would cause plastic deformation of the pressure ring or geometric damage to the threads. The temperature, flow rate, and duration of the hot airflow can be controlled and set so that the heat input is limited to a localized and short-duration pulsed heating, thereby avoiding long-term thermal damage or mechanical property degradation to the pressure ring and thread materials. In different embodiments, the geometric parameters of the turbofan blades 411, the cross-section of the fixed tube 420, and the arrangement of the connecting holes 22121 can be adjusted synergistically to balance the rotational torque, inflation rate, and heat transfer efficiency, thereby achieving a precise match between the expansion amplitude and the rotational speed.

[0042] Preferably, a reset member 430 is provided on the top post 220. The reset member 430 is mechanically connected to the rotating ring 2212 and is used to return the rotating ring 2212 to its initial angular position after the rotating ring 2212 has completed a predetermined angle rotation and the drive has stopped. From a process perspective, during the rotation of the rotating ring 2212 driven by the hot air flow, the centrifugal force and contact force help eliminate minor misalignments in the circumferential direction of the pressure ring, causing the pressure ring to tend to "find its position" circumferentially in the expanded state. When the hot air flow is stopped and the rotating ring 2212 is returned to its initial angle under the elasticity or preset torque of the reset member 430, the pressure ring completes a self-correction process in the angular and radial directions through the expansion-rotation-return cycle, so that the pressure ring is finally in a state of concentricity with the lens barrel thread and axial positioning. The reset member 430 (e.g., torsion spring 431 or elastic element) ensures that the angular reference is consistent after each cycle, avoiding cumulative offset of the rotating ring 2212 in multiple cycles, thereby ensuring the repeatability and high precision of the pressure ring position before locking.

[0043] As an optional embodiment, the capsule 222 is provided with multiple diaphragms 2221 along the axial direction, which divide the capsule 222 into multiple chambers. The connecting holes 22121 have multiple branch channels 22122 corresponding to the multiple chambers. This chambered design allows the capsule 222 to exhibit more uniform and controllable deformation during expansion, avoiding excessive local stress that might occur with single-chamber expansion. This not only further improves the uniformity and controllability of the pressure ring expansion process but also effectively reduces stress concentration during the assembly process.

[0044] As an optional embodiment, the fixed tube 420 has a turbofan housing 421, the diameter of which is larger than the diameter of the fixed tube 420. The interior of the turbofan housing 421 is used to install the turbofan blades 411. Through the structural design of the turbofan housing 421, a stable rotating cavity can be provided for the turbofan blades 411, making their rotation more stable under the drive of hot airflow, avoiding the turbofan blades 411 from shaking under the action of high-speed airflow, thereby ensuring the rotational accuracy of the rotating ring 2212 and further improving the alignment effect of the pressure ring.

[0045] Preferably, the reset component 430 includes a torsion spring 431. An annular groove 22111 for accommodating the torsion spring 431 is formed on the inner support ring 2211. One end of the torsion spring 431 is fixedly connected to the inner support ring 2211, and the other end is connected to the rotating ring 2212. Through the rebound action of the torsion spring 431, the rotating ring 2212 can automatically return to its initial angular position after rotation, thereby achieving adaptive reset of the rotating ring 2212, reducing the complexity of external control, and improving the service life and reliability of the device.

[0046] Reference Figure 1 , Figure 10 , Figure 11 as well as Figure 12 As shown, the worktable 100 is also equipped with a pressure ring feeding module 500 and a lens feeding module 600. The pressure ring feeding module 500 includes a pressure ring feeding assembly 510, a pressure ring picking assembly 520, and a pressure ring transfer assembly 530. The pressure ring feeding assembly 510 includes a pressure ring lifting chamber 511, which is used to stack and place the first feeding tray 512 and can move along the Z-axis under the action of the driving structure. The first feeding tray 512 is used to place the pressure rings.

[0047] The pressure ring picking assembly 520 includes a first picking tray 521, which can move along the Y-axis under the action of a drive structure to remove the first dispensing tray 512 layer by layer from the pressure ring lifting chamber 511 and transfer it to the transfer starting point of the pressure ring transfer assembly 530. The pressure ring transfer assembly 530 includes a first transfer frame 531 and a pressure ring clamping cylinder 532. A gantry frame 110 is mounted on the worktable 100 along the X-axis. The first transfer frame 531 is slidably mounted on the gantry frame 110 and can move back and forth along the X-axis of the worktable by a drive structure. The pressure ring clamping cylinder 532 is set on the first transfer frame 531 and can move along the Y-axis under the action of a drive structure to clamp the pressure ring at the corresponding transfer starting point and move it to the receiving platform 221. Through this combined structure, automatic feeding, picking and transfer of pressure rings can be realized, reducing misplacement or omission during manual operation and effectively improving assembly efficiency and consistency.

[0048] Reference Figure 1 , Figure 6As shown, the lens loading module 600 includes a lens loading assembly 610, a lens picking assembly 620, and a lens transfer assembly 630. The lens loading assembly 610 includes a lens lifting chamber 611, which is used to stack and place the second loading tray 612, and can move along the Z-axis direction under the action of the driving structure. The second loading tray 612 is used to place lenses.

[0049] The lens loading assembly 620 includes a second loading tray 621, which can move along the Y-axis under the action of a drive structure to remove the second unloading tray 612 layer by layer from the lens lifting chamber 611 and transfer it to the transfer starting point of the lens transfer assembly 630. The lens transfer assembly 630 includes a second transfer frame 631 and a lens clamping cylinder 632. The second transfer frame 631 is slidably mounted on the gantry frame 110 and can move back and forth along the X-axis of the worktable via a drive structure. The lens clamping cylinder 632 is disposed on the second transfer frame 631 and can move along the Y-axis under the action of a drive structure to clamp the lens at the corresponding transfer starting point and move it into the lens chamber 210. Through this modular design, parallel loading of lenses and pressure rings is realized, improving the production cycle and the automation level of the whole machine.

[0050] In this embodiment, pressure rings need to be installed on both the front and back of the lens, and the pressure ring size corresponding to each side is different. The first feeding tray 512 is divided into multiple areas to hold pressure rings of different sizes. The number of pressure ring clamping cylinders 532 corresponds to the number of areas and is arranged in parallel on the first transfer frame 531, wherein there are three pressure ring clamping cylinders 532. This not only meets the flexible adaptation of multiple specifications of pressure rings, but also allows for the continuous feeding of different pressure rings in the same process, improving the versatility of the equipment and processing efficiency.

[0051] As an optional embodiment, a positioning camera 5311 is installed on the first transfer frame 531. The positioning camera 5311 is a CCD camera. The positioning camera 5311 first positions the pressure ring, and then the pressure ring clamping cylinder 532 clamps it, ensuring the accuracy of the pressure ring positioning. This is used for position detection and attitude recognition of the pressure ring. This can effectively avoid clamping failure or locking error caused by slight displacement of the pressure ring position, and significantly improve the success rate and stability of assembly.

[0052] Reference Figure 1 , Figure 6As shown, in this embodiment, a pair of lens clamping cylinders 632 are installed on the second transfer frame 631. The pair of lens clamping cylinders 632 are independently distributed on both sides of the second transfer frame 631, and are used to clamp the lens bidirectionally during the material handling and unloading processes. Specifically, one lens clamping cylinder 632 is used to reliably clamp the lens and remove it from the lens compartment 210 after the lens has been secured with the pressure ring; the other lens clamping cylinder 632 is used to accurately clamp the lens to be fitted with the pressure ring and place it into the lens compartment 210, ensuring stable positioning of the lens during the unloading process. This bidirectional clamping method not only improves the stability and positioning accuracy during lens transfer, but also enhances material handling efficiency.

[0053] Furthermore, the locking and attaching moving platform 200 is positioned in the center of the workbench 100, while the pressing ring feeding module 500 and the lens feeding module 600 are symmetrically arranged on both sides of the locking and attaching moving platform 200, forming a symmetrical working layout. One side is used for loading, unloading, and transferring pressing rings, while the other side is used for loading, unloading, and transferring lenses. This symmetrical arrangement allows the locking and attaching moving platform 200 to reach either the lens station or the pressing ring station as needed when moving along the Y-axis, thereby achieving efficient loading and unloading operations. Through this reasonable space allocation and symmetrical design, not only is the equipment floor space saved, but the utilization rate of the workbench 100 is also significantly improved. Simultaneously, the movement path of the locking and attaching moving platform 200 between stations is shortened, improving the overall operating efficiency of the machine.

[0054] Furthermore, the locking and attaching mobile platform 200 has a pair of lens compartments 210, which are independent of each other and are used to place the front and back of the lens, respectively. Due to the difference in depth between the front and back of the lens, the front lens compartment 210 has a shallower cavity, suitable for placing the front of the lens; the back lens compartment 210 has a deeper cavity, used to accommodate the protruding mounting structure on the back of the lens. By setting a pair of lens compartments 210 of different depths on the same platform, the lens can still be stably placed and fixed after being flipped, avoiding the problem of unstable lens placement caused by the protruding back structure. Combined with multiple top posts 220 set on one side of the lens compartment 210, each top post 220 can be independently used to support the pressure ring, thereby enabling multi-station parallel operation. This combination of dual compartments and multiple top posts 220 allows the equipment to process different processes for multiple lenses simultaneously, improving production efficiency while also significantly enhancing the equipment's flexible processing capabilities and compatibility with different lens structures.

[0055] It is worth noting that, in this embodiment, the pair of lens compartments 210 are used for mounting the clamping rings on the front and back sides of the lenses, respectively. Generally, during lens loading, to ensure process continuity and avoid positioning or size mismatch errors caused by mixing different types of lenses in the same batch, lenses of the same type, such as front-facing lenses, are typically placed on the second loading tray 612 only once. During operation, the equipment first sequentially completes the clamping ring fastening operation for all front-facing lenses in the batch, ensuring that all front-facing clamping rings are assembled. Then, by changing the second loading tray 612 or adjusting the loading station, the back-facing lenses are loaded and clamped. This batch-based, single-type lens loading method not only simplifies the control logic and avoids clamping and positioning errors caused by frequent switching of the lens compartments 210 due to different orientations, but also ensures that the movement path of the clamping moving platform 200 remains consistent in each cycle, thereby improving the overall machine's operational stability and cycle efficiency.

[0056] Reference Figure 2 , Figure 3 As shown, to secure the lens and prevent it from moving during the locking process, a fixing cylinder 211 is installed on the lens compartment 210. A positioning plate 222 is fixedly installed on the output shaft of the fixing cylinder 211, and the positioning plate 222 is used to abut and press the lens. Through the locking action of the fixing cylinder 211, the stability of the lens is ensured throughout the entire pressure ring installation process, effectively avoiding pressure ring assembly deviations caused by lens movement, thereby improving the locking accuracy and the reliability of the thread engagement.

[0057] As an optional embodiment, a fine-tuning platform 230 is installed below the locking moving platform 200. The fine-tuning platform 230 includes drive structures for driving movement along the X-axis and Y-axis directions, respectively. In this embodiment, the drive structure is a lead screw drive structure, capable of precise linear movement driven by a motor, thereby driving the locking moving platform 200 to perform high-precision translational adjustment along the X-axis and Y-axis directions. With this configuration, when the detection system or positioning camera 5311 detects a slight positional deviation between the lens and the pressure ring, the fine-tuning platform 230 can correct the position of the locking moving platform 200 in a very short time, achieving precise alignment of the lens and pressure ring within the micrometer range. The precise adjustment function of the fine-tuning platform 230 avoids the time waste and accumulated errors caused by traditional manual or repeated alignment, enabling the locking action to complete the alignment and pressing operations in one operation.

[0058] Reference Figure 1 , Figure 8 as well as Figure 9As shown, the locking mechanism 300 includes a frame 320, a movable plate 330, a rotating base 340, and a balancing part 350. The driving structure of the locking mechanism 300 includes a pressing cylinder 360 and a rotating component 370. The movable plate 330 is slidably mounted on the frame 320 along the Y-axis and can move back and forth along the Y-axis under the action of the driving structure, facilitating precise movement of the locking mechanism 300 according to the position of the lens compartment 210. The rotating base 340 is rotatably mounted on the movable plate 330, ensuring that it can perform rotational operation without affecting the Y-axis movement. A central rod 380 is rotatably arranged inside the rotating base 340. The central rod 380 can both rotate and move up and down along the axial direction, thereby completing the combined function of pressing the ring. The locking head 310 is fixedly connected to the bottom end of the central rod 380 and directly undertakes the functions of picking up, placing, and locking the pressing ring.

[0059] The pressing cylinder 360 is fixedly mounted on the connecting bracket 331 of the moving plate 330 to move vertically synchronously with the moving plate 330. As the core actuator for longitudinal driving force, the pressing cylinder 360 can provide stable and controllable downward pressure. Its output shaft is connected to the central rod 380 to ensure that the central rod 380 can maintain vertical downward force transmission during the pressing action, avoiding uneven force on the pressure ring due to offset. A pressure sensor 381 is set at the connection position. For example, a strain gauge pressure sensor 381 with a range of 0~50N and a resolution of 0.01N can be selected to monitor the pressure magnitude in real time during the pressing process, ensuring that the pressing force is within the preset range. Through the feedback of this sensor, the system can realize closed-loop control, automatically stopping pressurization after detecting that the pressure ring is locked in place, preventing overpressure from causing thread damage, and also avoiding the risk of loosening caused by insufficient pressure on the pressure ring.

[0060] The rotating component 370 drives the rotating base 340 to rotate, and further drives the central rod 380 to rotate, so that the locking head 310 can complete the rotational locking action while pressing down. In this embodiment, the rotating component 370 is a motor that drives gears and toothed belts to drive the rotating base 340 to rotate. To improve the stability of rotation, a balancing part 350 is installed on the central rod 380. The balancing part 350 can dynamically balance and compensate for the moment of inertia when the central rod 380 rotates, avoiding vibration and sway caused by structural asymmetry.

[0061] Reference Figure 8As shown, a housing 700 is fixedly installed at the bottom of the movable plate 330. The housing 700 has a hollow structure and a pair of air pipe connectors 710 are connected to its exterior. The balancing part 350 includes a rotating block 351, which is coaxially fixed to the central rod 380 and located inside the housing 700. The outer wall of the rotating block 351 is evenly distributed with multiple protruding prisms 352 along the circumference. The cross-section of the prisms can be triangular, trapezoidal, or polygonal to facilitate the generation of uniform force by the airflow. The pair of air pipe connectors 710 are symmetrically arranged and located in the horizontal plane where the rotation center of the rotating block 351 is located. By simultaneously injecting stable airflow into both air pipe connectors 710, the gas acts on the surface of the prisms to form a symmetrical airflow pressure field, thereby effectively reducing the swaying and unbalanced torque when the central rod 380 rotates. The introduction of airflow damping not only achieves dynamic balance but also plays a role in vibration reduction and noise reduction to a certain extent.

[0062] Reference Figure 6 , Figure 7 As shown, a pressure rod 800 is vertically fixedly installed on the second transfer frame 631. A sliding groove 810 is formed at the bottom of the pressure rod 800, and a pressure head 811 is slidably installed within the sliding groove 810. The bottom of the pressure head 811 is equipped with a rubber head 812, which is made of a highly elastic and wear-resistant material to provide cushioning and protection when pressing the lens, effectively preventing hard parts from directly contacting the lens surface and causing scratches or indentations. A first magnet 813 is provided at the top of the pressure head 811, and a pressure spring 814 is fixedly installed at the bottom of the sliding groove 810. A second magnet 815 is connected above the pressure spring 814, and the second magnet 815 is arranged opposite to the first magnet 813. Through the repulsive force between the magnets and the elastic restoring force of the spring, the pressure head 811 can quickly and smoothly return to its original position automatically after being pressed, thus forming a flexible pressing structure.

[0063] Before the lens with the retaining ring installed is transferred using the second transfer bracket 631, the pressing head 811 applies downward pressure to the lens element, ensuring a tighter connection between the lens and the retaining ring after installation. Especially after the retaining ring has been rotated and pressed, the secondary downward pressure from the pressing head 811 further solidifies the contact surface between the lens and the retaining ring, resulting in a more secure locking connection and preventing loosening or displacement due to vibration or environmental changes during subsequent use.

[0064] Furthermore, during the pressing process, the pressure head 811, through the flexible contact between the rubber head 812 and the lens, not only improves the fit of the pressure but also disperses localized concentrated pressure, avoiding the risk of lens breakage due to stress concentration. The combined effect of the magnet and the pressure spring 814 gives the pressure head 811 a certain flexible stroke, allowing it to automatically compensate for minute height differences on the lens surface, ensuring the uniformity and stability of the pressing force distribution.

[0065] In summary, this embodiment achieves precise control of the pressure ring during heating and expansion through innovative design in the structures of the bladder 222, receiving platform 221, rotating ring 2212, driving component 400, and resetting component 430, thus avoiding thread damage. The cooperation of the pressure ring feeding module 500, lens feeding module 600, and positioning camera 5311 ensures accurate positioning of the pressure ring and lens. The coordinated operation of the locking moving platform 200 and locking mechanism 300 enables the automatic picking, transfer, positioning, pressing, and rotation of the pressure ring to be completed in one integrated process, significantly improving the automation and stability of pressure ring assembly. This effectively solves the problems of low efficiency, high thread damage rate, and unstable locking in existing technologies.

[0066] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic ring fastening machine, characterized in that, include: Workbench (100); A locking and attaching moving platform (200) is set on the worktable (100). The locking and attaching moving platform (200) can move along the Y-axis under the action of the driving structure. The locking and attaching moving platform (200) is provided with a lens compartment (210) and a top column (220). The lens compartment (210) is used to place and fix the lens. The top of the top column (220) has a receiving platform (221) with a reduced diameter. The receiving platform (221) is used to install the pressure ring. The outer periphery of the receiving platform (221) is provided with a bladder (222). The bladder (222) can expand or contract by filling or discharging hot air to expand the pressure ring. A locking mechanism (300) is provided on the worktable (100). The locking moving platform (200) can move to the locking position corresponding to the locking mechanism (300). The locking mechanism (300) includes a locking head (310). The locking head (310) can move along the Z-axis and rotate under the action of the driving structure. The bottom end of the locking head (310) is provided with an adsorption port (311). The adsorption port (311) is used to pick up the pressure ring on the receiving platform (221) and place the pressure ring on the lens in the lens compartment (210) under the drive of the movement of the locking head (310). Thus, the pressure ring is locked on the lens by rotation and pressing.

2. The automatic ring fastening machine according to claim 1, characterized in that, The receiving platform (221) includes an inner support ring (2211) and a rotating ring (2212). The inner support ring (2211) is fixedly connected to the column body of the top column (220). The rotating ring (2212) is coaxially rotatably connected to the inner support ring (2211). The bladder (222) is embedded in the rotating ring (2212). A driving member (400) is provided on the top column (220). The driving member (400) is used to drive the rotating ring (2212) to rotate relative to the inner support ring (2211).

3. The automatic ring fastening machine according to claim 2, characterized in that, The drive component (400) includes a shaft (410) and turbofan blades (411) disposed on the shaft (410). The top column (220) has a hollow structure, and a fixing tube (420) is provided in the hollow part of the top column (220). The shaft (410) is coaxially and fixedly connected to the rotating ring (2212) and passes through the fixing tube (420). The turbofan blades (411) are also disposed in the fixing tube (420). The rotating ring (2212) has a connecting hole (22121) that communicates with the bladder (222) and the fixed tube (420). The end of the fixed tube (420) away from the rotating ring (2212) is connected to a hot air source so that the hot air flows through the fixed tube (420) to drive the turbine blades (411) to rotate, thereby driving the rotating ring (2212) to rotate and simultaneously inflating the bladder (222).

4. The automatic ring fastening machine according to claim 3, characterized in that, A reset component (430) is provided on the top column (220). The reset component (430) is connected to the rotating ring (2212) and is used to reset the rotating ring (2212) to its initial position after the rotating ring (2212) has completed its rotation. And / or, the capsule (222) is provided with a plurality of diaphragms (2221) in the axial direction, the diaphragms (2221) dividing the capsule (222) into a plurality of chambers, and the connecting hole (22121) has a plurality of branch channels (22122) corresponding to the plurality of chambers. And / or, the fixed tube (420) has a turbofan housing (421) with a diameter greater than that of the fixed tube (420), and the interior of the turbofan housing (421) is used to install the turbofan blades (411).

5. The automatic ring fastening machine according to claim 4, characterized in that, The reset component (430) includes a torsion spring (431). The inner support ring (2211) has an annular groove (22111) for accommodating the torsion spring (431). One end of the torsion spring (431) is fixedly connected to the inner support ring (2211), and the other end is connected to the rotating ring (2212).

6. The automatic ring fastening machine according to any one of claims 1-5, characterized in that, The workbench (100) is also equipped with a pressure ring feeding module (500) and a lens feeding module (600), wherein: The pressure ring feeding module (500) includes a pressure ring feeding assembly (510), a pressure ring picking assembly (520), and a pressure ring transfer assembly (530). The pressure ring feeding assembly (510) includes a pressure ring lifting chamber (511), which is used to stack and place the first feeding tray (512) and can move along the Z-axis under the action of the driving structure. The first feeding tray (512) is used to place the pressure ring. The pressure ring picking assembly (520) includes a first picking tray (521), which can move along the Y-axis under the action of the driving structure, and picks up the pressure rings one by one from the pressure ring lifting chamber (511). The first feeding tray (512) is removed from the layer and transferred to the transfer starting point of the pressure ring transfer assembly (530); the pressure ring transfer assembly (530) includes a first transfer frame (531) and a pressure ring clamping cylinder (532). The worktable (100) is provided with a gantry frame (110) along the X-axis direction. The first transfer frame (531) is slidably installed on the gantry frame (110). The pressure ring clamping cylinder (532) is set on the first transfer frame (531) and can move along the Y-axis direction under the action of the drive structure to clamp the pressure ring at the corresponding transfer starting point and move it to the receiving platform (221); The lens loading module (600) includes a lens loading assembly (610), a lens picking assembly (620), and a lens transfer assembly (630). The lens loading assembly (610) includes a lens lifting chamber (611), which is used to stack a second feeding tray (612) and can move along the Z-axis under the action of a driving structure. The second feeding tray (612) is used to place lenses. The lens picking assembly (620) includes a second picking tray (621), which can move along the Y-axis under the action of a driving structure to pick up lenses from the loading tray. The second loading tray (621) is removed layer by layer from the lens lifting chamber (611) and transferred to the transfer starting point of the lens transfer assembly (630). The lens transfer assembly (630) includes a second transfer frame (631) and a lens clamping cylinder (632). The second transfer frame (631) is slidably mounted on the gantry frame (110). The lens clamping cylinder (632) is disposed on the second transfer frame (631) and can move along the Y-axis under the action of the drive structure to clamp the lens at the corresponding transfer starting point and move it into the lens chamber (210).

7. The automatic ring fastening machine according to claim 6, characterized in that, The pressure ring lifting chamber (511) is divided into multiple areas to hold pressure rings of different sizes. The number of pressure ring clamping cylinders (532) corresponds to the multiple areas and is arranged in parallel on the first transfer frame (531). And / or, the first transfer frame (531) is provided with a positioning camera (5311) for positioning detection of the pressure ring; And / or, a pair of lens clamping cylinders (632) are provided on the second transfer frame (631); And / or, the locking and attaching moving platform (200) is located in the middle of the workbench (100), and the pressure ring feeding module (500) and the lens feeding module (600) are located on both sides of the locking and attaching moving platform (200); And / or, the lens compartment (210) on the locking mobile platform (200) is provided with a pair, and the top column (220) is provided with multiple columns and is located on one side of the lens compartment (210); And / or, a fixing cylinder (211) is provided on the lens compartment (210), and a positioning plate (212) is fixedly provided on the output shaft of the fixing cylinder (211), and the positioning plate (212) is used to abut against the fixing lens; And / or, a fine-tuning platform (230) is provided below the locking moving platform (200), the fine-tuning platform (230) includes a driving structure in the X-axis and Y-axis directions to drive the locking moving platform (200) to translate along the X-axis and Y-axis directions.

8. The automatic ring fastening machine according to claim 7, characterized in that, The locking mechanism (300) further includes a frame (320), a movable plate (330), a rotating base (340), and a balancing part (350). The driving structure of the locking mechanism (300) includes a pressing cylinder (360) and a rotating component (370). The movable plate (330) is slidably mounted on the frame (320) along the Y-axis direction. The rotating base (340) is rotatably mounted on the movable plate (330). A central rod (380) is rotatably mounted inside the rotating base (340), and the central rod (380) can move along the axial direction. The attachment (310) is fixedly connected to the bottom end of the center rod (380). The downward pressure cylinder (360) is fixedly installed on the connecting frame (331) of the moving plate (330). Its output shaft is connected to the center rod (380), and a pressure sensor (381) is provided at the connection position. The rotating part (370) is used to drive the rotating seat (340) to rotate and drive the center rod (380) to rotate. The balancing part (350) is provided on the center rod (380) to maintain its rotational balance when the center rod (380) rotates.

9. The automatic ring fastening machine according to claim 8, characterized in that, A housing (700) is fixedly installed on the movable plate (330). The housing (700) has a hollow structure. A pair of air pipe connectors (710) are connected to the outside of the housing (700). The balance part (350) includes a rotating block (351). The rotating block (351) is coaxially fixed on the central rod (380) and located inside the housing (700). The outer wall of the rotating block (351) is provided with a plurality of protruding prisms (352) along the circumferential direction. A pair of air pipe connectors (710) are symmetrically arranged and located in the plane where the rotation center of the rotating block (351) is located.

10. The automatic ring fastening machine according to claim 6, characterized in that, The second transfer frame (631) is provided with a pressure rod (800), the bottom end of the pressure rod (800) is provided with a sliding groove (810), a pressure head (811) is slidably arranged in the sliding groove (810), the bottom end of the pressure head (811) is provided with a rubber head (812), the top end of the pressure head (811) is provided with a first magnet (813), the bottom end of the sliding groove (810) is fixedly provided with a pressure spring (814), the pressure spring (814) is provided with a second magnet (815), and the second magnet (815) is arranged opposite to the first magnet (813).

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