Precision-Controlled Surface Grinding System for Optical Fiber Lens Shaping

Abstract

Systems and methods are disclosed to shape optical fiber lenses through surface grinding. The method involves rotating the optical fiber using a rotation-driving module, swinging the fiber through a swing module to fine-tune the grinding angle radially, and performing the grinding at the fiber's end to achieve the specified lens contour. The apparatus integrates a rotation module for consistent axial spinning, a swing device for managing the radial angle of grinding, and an expedited load and unload system.

Description

[0001] The present invention is related to co-pending commonly filed application Ser. No. _____ on Feb. 21, 2025, the content of which is incorporated by reference.BACKGROUND OF THE INVENTION

[0002] The field of optical communications has seen significant advancements over recent decades, largely due to the innovative use of optical fibers which allow for high-speed data transmission. However, the efficiency of these systems depends on the quality of the optical fiber interfaces. These interfaces often require precise shaping and surface preparation to ensure optimal signal transmission. Specifically, the end surfaces of optical fibers need to be precisely ground to achieve the desired lensing effects and minimize signal loss. Traditional manual grinding methods are labor-intensive and often lead to inconsistencies in quality, while automated systems can be prohibitively expensive and complex. As the demand for better performance and reliability in optical communications grows, there is a pressing need to enhance the precision and control of the grinding process used to prepare optical fiber end surfaces. This need has led to the development of novel systems and methods aimed at improving the grinding control process, culminating in a new generation of control systems that provide greater repeatability, accuracy, and efficiency in the preparation of optical fiber lenses.SUMMARY OF THE INVENTION

[0003] In one aspect, a method for shaping the end surface of an optical fiber into a lens by employing a two-step mechanized process. Initially, the optical fiber is rotated about its axis with a rotation-driving module. Next, a swing module is utilized to manipulate the optical fiber into various radial positions, thereby adjusting the grinding angle during the lens-shaping procedure.

[0004] In another aspect, a method for controlling the surface grinding shape of an optical fiber lens, includes:

[0005] inserting an optical fiber into an optical fiber core dimension matching ferrule tube;

[0006] aligning the optical fiber using a rotatable optical fiber guide tube;

[0007] engaging a front optical fiber clamp module to secure a front portion of the optical fiber, wherein engaging the front optical fiber clamp module comprises:

[0008] activating an elastic clamp holding module,

[0009] activating a push-to-clamp holding module, and

[0010] engaging a locking module;

[0011] engaging a rear optical fiber clamp module to secure a rear portion of the optical fiber, wherein engaging the rear optical fiber clamp module comprises:

[0012] activating an elastic clamp holding module,

[0013] activating a push-to-clamp holding module, and

[0014] engaging a locking module;

[0015] rotating the optical fiber along its axis using a rotation-driving module;

[0016] swinging the optical fiber using a swing module to control a radial grinding angle, wherein the swing module provides a radial grinding angle range of 0 to 90 degrees;

[0017] grinding an end of the optical fiber to form a lens shape while continuously rotating the optical fiber along its axis;

[0018] synchronizing the rotation of the optical fiber with the swinging motion to achieve the desired lens shape;

[0019] monitoring the grinding progress using a sensor system to ensure the desired lens shape is achieved;

[0020] adjusting the grinding pressure based on the desired lens shape and optical fiber material;

[0021] applying a coolant to the grinding area to prevent overheating of the optical fiber;

[0022] verifying the final lens shape using an optical measurement system after grinding; and

[0023] releasing the front and rear optical fiber clamp modules after completing the lens grinding operation, wherein releasing the front and rear optical fiber clamp modules comprises:

[0024] disengaging the locking modules,

[0025] deactivating the push-to-clamp holding modules, and

[0026] deactivating the elastic clamp holding modules.

[0027] In yet another aspect, an apparatus provides for precises shaping the surface of optical fiber lenses. This apparatus includes a module that allows for the continuous rotation of the lens around its axis, another module to adjust the radial grinding angle during the shaping process, and a system that enables rapid loading and unloading of lenses. This system incorporates a precision positioning feature and utilizes a magnetic component to firmly hold the lens in place during operation.

[0028] In yet further aspect, an apparatus for controlling the surface grinding shape of an optical fiber lens includes:

[0029] a ferrule tube configured to match the core dimension of an optical fiber;

[0030] a rotatable optical fiber guide tube for aligning the optical fiber;

[0031] a front optical fiber clamp module configured to secure a front portion of the optical fiber, wherein the front optical fiber clamp module comprises:

[0032] an elastic clamp holding module,

[0033] a push-to-clamp holding module, and

[0034] a locking module;

[0035] a rear optical fiber clamp module configured to secure a rear portion of the optical fiber, wherein the rear optical fiber clamp module comprises:

[0036] an elastic clamp holding module,

[0037] a push-to-clamp holding module, and

[0038] a locking module;

[0039] a rotation-driving module configured to continuously rotate the optical fiber along its axis;

[0040] a swing module configured to control a radial grinding angle of the optical fiber, wherein the swing module provides a radial grinding angle range of 0 to 90 degrees;

[0041] a grinding wheel configured to grind an end of the optical fiber to form a lens shape;

[0042] a sensor system configured to monitor the grinding progress;

[0043] a coolant application system configured to apply coolant to the grinding area;

[0044] an optical measurement system configured to verify the final lens shape; and

[0045] a release module configured to disengage the front and rear optical fiber clamp modules after completion of the lens grinding operation.

[0046] Advantages of one implementation may include one or more of the following:

[0047] Improved Precision: One implementation allows for more precise control over the shaping of the optical fiber end surface, leading to a more consistent and higher quality lens finish. This is particularly important for maintaining integrity in signal transmission and minimizing data loss.

[0048] Enhanced Consistency: By using a mechanized process, one implementation reduces the variability that is inherent in manual grinding methods. This ensures that each lens is shaped identically, which is crucial for maintaining performance across batches of fibers.

[0049] Increased Efficiency: The system's ability to rapidly load and unload lenses, combined with the continuous rotation and angle adjustment modules, streamlines the production process. This can lead to faster turnaround times and higher throughput.

[0050] Reduced Labor Costs: Automating the grinding process minimizes the need for skilled labor to manually shape each fiber end, thus decreasing the labor costs associated with the fiber preparation.

[0051] Higher Yield: The increased accuracy and consistency of the mechanized process lead to a higher yield of acceptable lenses as less material is wasted due to grinding errors, and defects in the final product are reduced.

[0052] Enhanced Versatility: The ability to adjust the grinding angle allows for the creation of various lens profiles, making one implementation suitable for a wide range of optical applications.

[0053] Better Reliability: With more uniform end surfaces, the reliability of connections and couplings in optical systems is improved, leading to fewer failures and maintenance issues over time.

[0054] Scalability: One implementation can be easily scaled to meet the demands of larger production volumes without compromising on the quality of the lenses, making it suitable for both small-scale and large-scale manufacturing setups.

[0055] Cost-Effective: Despite the mechanization and increased control features, one implementation may be more cost-effective than other automated systems due to its simplified design, which can reduce the overall cost of ownership and operation.

[0056] User-Friendly Interface: One implementation could potentially include a user-friendly interface that simplifies the setup and operation processes, allowing for easier adoption in existing manufacturing environments without the need for extensive operator training.BRIEF DESCRIPTION OF DRAWINGS

[0057] FIGS. 1-2 show an exemplary system for controlling surface grinding shape of optical fiber lens.

[0058] FIGS. 3-5 show exemplary control electronics and exemplary software to provide swing and rotation driving modules.

[0059] FIG. 6 shows an exemplary flowchart showing steps for shaping an optical fiber lens, including rotating, swinging, and grinding.

[0060] FIG. 7 shows an exemplary flowchart showing steps to position and secure an optical fiber for lens shaping, starting with accurate positioning and ending with magnetic holding.DETAILED DESCRIPTION OF THE INVENTION

[0061] A method and apparatus are designed to shape optical fiber lenses through surface grinding. The method involves rotating the optical fiber using a rotation-driving module, swinging the fiber through a swing module to fine-tune the grinding angle radially, and performing the grinding at the fiber's end to achieve the specified lens contour. The apparatus integrates a rotation module for consistent axial spinning, a swing device for managing the radial angle of grinding, and an expedited load and unload system that provides precise positioning capabilities along with a retention module to firmly hold the fiber in place. The method further incorporates steps such as rapid loading, grinding pressure adjustment, cooling, subsequent polishing, and employing optical measurements for lens shape validation. The apparatus may also feature variability in rotation speeds, angle calibration, manual interfaces for operation, electromagnetic operation for the magnetic holder, feedback sensors, the capacity to reverse direction, cooling modules, pneumatic controls, protective casings, and micrometer-scale adjustments for fine positioning. This innovative approach promises to yield optical fiber lenses with high surface precision and revamps manufacturing efficiency.

[0062] FIG. 1 shows an exemplary system for controlling the surface grinding shape of optical fiber lenses. This system facilitates precise grinding of fiber optic lens surfaces into various shapes, including conical, spherical, and wedge configurations. The system includes three components that work in concert to achieve high-precision lens shaping: a rotation-driving module 4, a swing module 5, and along-side rotationable module 2. A quick loading and unloading module (not shown) allows the fiber lens to be shaped.

[0063] The rotation-driving module 4 provides continuous rotation along the axis of the optical fiber. This component ensures uniform grinding across the entire surface of the lens. It allows for the fiber to be rotated at a controlled speed, which is essential for achieving consistent surface finish and shape accuracy. The module incorporates a motor or drive system that can be finely tuned to adjust rotational speed as needed for different grinding requirements or fiber types.

[0064] Adjacent to rotation module 4 is a swing module 5 responsible for controlling the radial grinding angle at the end of the optical fiber lens. FIG. 2 shows the swingable module 5 with a motorized system that grips the fiber securely while allowing it to rotate smoothly along its axis. This rotation ensures uniform material removal during the grinding process, resulting in a symmetrical lens shape. The module can incorporate precision bearings and alignment features to maintain the fiber's position with minimal runout for achieving high-quality optical surfaces. The swing module 5 is mounted on a pivot point, allowing it to adjust the angle of the fiber relative to the grinding surface. The module can incorporate fine-tuning controls, possibly through a combination of mechanical adjustments and electronic actuators, to achieve the high precision required for optical lens shaping.

[0065] The optical fiber is moved using swing module 5 to control the radial grinding angle. This swing module is capable of accurate angular adjustments, allowing for precise control over the shape being formed. By adjusting the radial position of the optical fiber, the swing module can dictate the curvature and angle necessary for different lens shapes, including conical, spherical, or wedge-shaped ends.

[0066] The swing module 5 allows for precise adjustment of the fiber's position relative to the grinding surface, enabling the creation of various lens profiles. By altering the angle of the fiber during the grinding process, technicians can achieve a wide range of lens shapes, from conical designs to gentler spherical curves or even flat wedge shapes. This flexibility is crucial in producing lenses tailored for specific optical applications, each requiring unique light-focusing properties.

[0067] Through the operation of FIGS. 1-2, the fiber optical lens can be grinding to various shapes, like any angle cone shape spherical shape, or wedge shape etc. In one design, the rotation-driving module can continually rotate along the axis. The swing module that can accurately control the ends of fiber optical lens radial grinding angle.

[0068] A quick loading and unloading module streamlines the production process and enhance efficiency. This module incorporates two key features: an accurate positioning system and a magnetic holding module. The accurate positioning feature ensures that each fiber is consistently placed in the optimal location for grinding and maintaining quality control across multiple production cycles. The magnetic holding module provides a secure yet easily releasable grip on the fiber, allowing for rapid exchange of workpieces without compromising precision. This combination of features significantly reduces setup time between grinding operations, potentially increasing overall production throughput.

[0069] In one design, the module for grinding the end of an optical fiber employs a grinding wheel that interacts with the optical fiber as it engages in both rotational and pendular motions. The rotational motion is governed by a rotation-driving module that facilitates a continuous and smooth axial spin, which assures a uniform grinding application over the fiber's end surface. This consistency allows for the creation of various end-face profiles, including conical, spherical, and wedge-shaped configurations. The pendular module is instrumental in precisely managing the radial grinding angle at the end of the fiber. Such meticulous adjustment ensures that the optical fibers are processed to meet exacting standards, achieving the sought-after surface quality and geometric form.

[0070] FIGS. 3-4 show various sensors and control points providing a high degree of automation and real-time monitoring. The control includes lasers and optical sensors to measure the lens shape as it's being formed. This level of instrumentation allows for closed-loop control of the grinding process, ensuring consistency and allowing for real-time adjustments to achieve optimal results.

[0071] FIG. 3 shows an actuator that moves the fiber lens up or down to control the fiber touch grinding surface. The actuator includes a motor powered by a driver that receives power from a power supply unit and actuation commands from a computer or controller. The computer or controller receives feedback data from a displacement sensor. In the design of FIG. 3, a laser mounted perpendicular to the fiber shines a beam at a target fiber, and a sensor mounted at an angle α relative to the laser detects the reflection and the output of the sensor is provided as feedback to the computer / controller. The laser and displacement sensor enable the targeted lens contour is precisely obtained. It perpetually gauges variables like the grinding velocity, the incline, and the force exerted on the optical fiber lens. Through the assessment of these factors, the sensor identifies discrepancies from the set criteria. If discrepancies are noted, the apparatus is designed to autonomously modify the rotating module, the module capable of rotating along an axis, and the module capable of pivoting, all to rectify the grinding operation. This automatic regulation reduces mistakes and amplifies the accuracy of the final lens surface. The sensor array could be composed of optical sensors, tactile sensors, or other appropriate sensor types that supply instant data feedback. This information is then processed by the computer / controller, providing immediate alterations when necessary. The synergy of both manual and automated oversight offers operational versatility while still upholding exceptional standards for lens quality.

[0072] FIG. 4 shows a fiber lens shaping control and drive mechanism with two motors, one to control fiber lens along fiber axis rotation, and a second motor to control fiber lens along fiber section radius tilt. Each motor is actuated by drivers that receive power from respective power supplies. The drivers in turn are controlled by a computer / controller that receives feedback from respective encoders that measure motor rotation and provide that information to the computer / controller as feedback.

[0073] The overall construction of the module emphasizes rigidity and vibration control, which are critical for maintaining the precision required in optical lens grinding. Heavy base plates, reinforced support structures, and possibly vibration-dampening materials are incorporated to isolate the grinding process from environmental disturbances.

[0074] FIG. 5 shows an exemplary process to perform fiber lens grinding. First, the input grinding program is specified. An initialization step is performed to 1) swing the optical fiber to a designed angle, 2) move up or down the optical fiber holder to an initial height, and 3) start a grind plate. Next, the grinding program is started and feedback data is captured. This process is repeated until the specification of the lens is met.

[0075] FIG. 6 illustrates the steps for shaping an optical fiber lens, including rotating the fiber with a rotation-driving module, swinging it to control the radial grinding angle, and grinding the end to form a lens shape.

[0076] The process begins with rotating an optical fiber along its axis utilizing a rotation-driving module, as indicated by S100. This step ensures uniform motion, essential for achieving a precise lens shape on the fiber's end surface. The consistent rotation facilitates the subsequent shaping operations, laying the groundwork for improved precision throughout the lens-forming procedure.

[0077] In the process of shaping the end surface of an optical fiber into a lens, the step of swinging the optical fiber using a swing module is pivotal. This step involves adjusting the radial position of the optical fiber by means of the swing module to precisely control the grinding angle. This adjustment ensures that the desired lens shape is accurately produced, thereby enhancing the precision and quality of the lens finish. This control over the grinding angle is essential for achieving uniformity and maintaining the integrity of signal transmission.

[0078] The method includes grinding an end of the optical fiber to form a lens shape (S104). This step follows the rotation (S100) and swinging (S102) of the optical fiber. The grinding is crucial for shaping the optical fiber into a lens, allowing for precise configurations that enhance the quality of the lens finish, which is vital for maintaining signal transmission integrity and minimizing data loss.

[0079] FIG. 7 illustrates a flowchart detailing the steps to position and secure an optical fiber for lens shaping. It begins with accurate positioning (S200) and concludes with securing the optical fiber using a magnetic holding module (S202).

[0080] The method involves positioning the optical fiber using an accurate positioning feature, identified as step S200. This step ensures that the optical fiber is precisely aligned, allowing for optimal shaping during the lens-forming process. Accurate positioning is crucial for achieving a consistent lens shape and maintaining the quality required for effective signal transmission.

[0081] In the described implementation, securing the optical fiber is achieved through the use of a magnetic holding module, as indicated by reference sign S202. This module plays a crucial role in maintaining the stability and position of the optical fiber during the lens shaping process, ensuring that the fiber is firmly held against any movements or disruptions. The magnetic component provides reliable retention, facilitating precision in the shaping operation and contributing to a high-quality end surface of the optical fiber lens.

[0082] One implementation relates to a technique for manipulating the contour of the surface grinding on an optical fiber lens. This technique encompasses procedures to accurately form the lens at the tip of an optical fiber. To commence, the optical fiber is spun around its axis by a rotation-driving module. This device facilitates uninterrupted spinning to enable even abrasion. The rotation-driving module is configured to preserve a steady axis of rotation, essential for attaining the target lens geometry. The module integrates a magnetic retention component that firmly secures the optical fiber during the actual grinding phase, thereby eliminating any undesired movements that could compromise the precision of the grinding operation. The incorporation of these elements ensures that the grinding is executed with accuracy, facilitating the fashioning of diverse lens profiles including conical, spherical, or wedge shapes.

[0083] This module is especially valuable in contexts that demand quick transitions between various lenses, as it minimizes pause times and boosts overall operational throughput. The inventive approach melding the rotation-driving module with the swing module enhances the grinding process by providing seamless rotation along the lens axis and meticulous modulation of the grinding angle in the radial dimension. These components operate synergistically to guarantee that the optical fiber lens is consistently shaped to the required standards with exceptional precision and uniformity.

[0084] The method for loading the optical fiber employs a methodical strategy that improves the exactness and steadiness of the operation. To begin, the optical fiber is situated using a precise positioning module. This attribute is crafted to guarantee that the optical fiber is aligned properly and is secured with great precision. The precise positioning module can include components such as alignment jigs or clamps that offer a benchmark for positioning the fiber consistently.

[0085] Optionally, a coolant distribution apparatus can be used to counteract extensive heat buildup during the optical fiber lens grinding procedure. This coolant delivery preserves the structural integrity of the optical fiber, as overheating can result in thermal destruction and negative impacts on the lens's optical qualities. The coolant system operates by dispensing a steady stream of coolant directly to the area of grinding, guaranteeing efficient temperature control during the operation. The system is equipped with a reservoir to hold the coolant, a pump to manage the flow rate, and strategically positioned nozzles that aim the coolant precisely at the interface between the grinding module and the optical fiber. The utilization of coolant not only maintains the physical and optical traits of the fiber but also improves the grinding process's effectiveness by minimizing friction and diminishing the wear experienced by grinding components.

[0086] One implementation encompasses a refined process for improving the shape and quality of optical fiber lenses. Following the initial grinding operation, the module incorporates a step of polishing the ground lens surface. This additional polishing step is vital for enhancing the surface and achieving superior optical quality. The polishing operation aims to eliminate any unevenness left by the grinding process, thus improving the precision of the lens surface. This procedure is carried out using a specially designed polishing component within the system, ensuring that the lens attains the requisite optical clarity and performance. The polishing module operates in harmony with the rotation-driving and swing modules to maintain constant contact with the lens surface while adhering to the predetermined shape and angle. The chosen polishing material is specifically matched with the optical fiber material to remove minute flaws without compromising the lens's structural integrity. By incorporating polishing into the process, one implementation offers a comprehensive approach for shaping and enhancing optical fiber lenses, ensuring output of superior quality suitable for diverse applications.

[0087] One implementation additionally includes the capacity to grind several optical fibers concurrently, utilizing multiple parallel grinding apparatuses. This enhancement bolsters the efficiency and output of the fiber optic lens grinding procedure, leading to greater manufacturing yield. Each individual grinding unit within the parallel configuration is endowed with a dedicated rotation-driving module, which ensures continuous rotational movement around its particular axis. This promotes consistent grinding and shaping across all optical fibers being treated at the same time. Moreover, each unit is outfitted with a swing module that accurately manipulates the radial grinding angle for each optical lens. This feature guarantees uniform and precise shaping of a variety of optical fiber lens profiles, encompassing but not limited to conical shapes of any desired angle, spherical forms, and wedge configurations.

[0088] A magnet-based securing method is utilized to firmly retain the optical fibers in position during the grinding process. This magnet-based securing method provides stability without necessitating manual readjustment, thereby curtailing setup durations and facilitating uninterrupted transitions across different fibers. The integration of these elements not only lessens idle time but also diminishes the likelihood of mistakes, significantly enhancing operational productivity. The simplicity of use presented by the rapid loading and unloading apparatus renders it a vital tool for manufacturing workflows where efficiency and exactitude are critical.

[0089] The module for controlling the surface grinding profile of an optical fiber lens also includes a final lens shape validation using an optical measurement system post-grinding. This validation procedure confirms that the lens conforms to the exact shape and specifications necessary for peak performance. The optical measurement system might utilize a variety of techniques, such as laser interferometry or profilometry, among other appropriate optical methods, to evaluate the surface contour and geometric dimensions of the lens. Following the grinding process, the lens undergoes examination by this system, which collects comprehensive surface data to verify the precision of the grinding outcome. The gathered information is measured against pre-established standards or design requirements to ascertain whether the grinding procedure has yielded the intended optical properties. Should any deviations be detected, modifications can be implemented in the grinding protocol to enhance the lens profile. This step is essential in upholding stringent quality control and ensuring that each lens adheres to strict industry benchmarks for efficiency and dependability. Incorporating an optical measurement system into the lens shaping workflow introduces an added degree of accuracy and oversight, bolstering the overall effectiveness and production quality of the manufacturing process.

[0090] This methodology is designed to fabricate optical fiber lenses with outstanding surface accuracy, complying with the rigorous standards of less than ±5 μm in deviation. The advancement caters to the demand for precision in optical elements across numerous applications, providing enhanced accuracy and efficiency when compared to current methods.

[0091] The rapid loading and unloading apparatus is crafted to augment user engagement by offering an uncomplicated manual control panel. It enables users to swiftly insert and remove optical fiber lenses during the grinding stage without the necessity for intricate tools or comprehensive instruction. The apparatus typically comprises an array of toggles and fasteners that steadfastly secure the lens through the grinding operation and can be effortlessly disengaged upon completion. Moreover, the integration of a magnetic anchoring element ensures the lens maintains stability and precise alignment, mitigating the chances of misalignment or harm. This configuration not only elevates operational efficacy but also adds to the overall safety and dependability of the grinding apparatus. By promoting quick changes and calibrations, the rapid loading and unloading apparatus fosters enhanced productivity in both experimental and manufacturing environments, adapting to a variety of lens contours and dimensions with marginal alterations.

[0092] The module provides precise control over the tool's movement, facilitating the production of detailed configurations such as cone shapes at various angles, spherical forms, or wedge profiles with remarkable precision. This level of functionality is attained via sophisticated control systems coupled with sensors that keep track of the grinding tool's position and trajectory, confirming that any changes in direction are conducted with minimal delay or inaccuracy. Additionally, the option to reverse the grinding direction aids not only in realizing intricate surface patterns but also enhances the service life of the grinding tool by ensuring even wear distribution. Accordingly, the ability to modify its rotational direction is a vital aspect that considerably broadens the operational scope and potential applications of the optical fiber lens grinding module.

[0093] Additionally, this one implementation encompasses a rapid mount and dismount module, designed to streamline the transition between tasks and reduce periods of inactivity. This aspect is bolstered by an exact placement feature, augmented by a magnetic fixation module that ensures both stability and precision during machining processes. Enhancing its operational efficacy, the module includes a cooling system adept at mitigating the thermal effects incurred during the abrasive process. This cooling module actively prevents thermal accumulation, thus maintaining the structural integrity of the optical fiber lenses and assuring consistent precision and quality throughout the shaping cycle. The confluence of these modules provides a holistic solution for fabricating optical fiber lenses with diverse configurations and exacting standards.

[0094] By employing pneumatic elements, the device ensures more rapid response rates and heightened stability, contributing to diminished vibrations and elevated accuracy during grinding. The pneumatic framework is coupled with a sophisticated control module that permits straightforward adjustments and real-time supervision. This feature enables the module to deftly manage diverse lens geometries, including conical shapes of any angle, spherical forms, and wedge configurations. Such integration confirms the swing module's readiness to adapt to assorted operational demands and seamlessly manage the necessary grinding setups without the need for manual adjustments.

[0095] The thoughtfully designed system reduces the frequency of maintenance requirements and streamlines the process for swapping or fine-tuning components. This design approach effectively enhances the functional efficiency and extends the lifespan of the grinding apparatus.

[0096] One implementation further comprises a protective housing designed to maintain operational safety and ensure lens cleanliness. This housing encloses the key components of the module, effectively shielding them from external contaminants such as dust and debris, which could otherwise compromise the precision of the grinding process. The housing is constructed from durable, lightweight materials that provide an optimal balance between protection and ease of handling. It integrates seamlessly with the rotation-driving and swingable modules, ensuring there is no interference with their functionality. The design of the housing includes strategically placed access points, allowing for easy maintenance and inspection of the internal components. Seals and gaskets at the joints prevent the ingress of contaminants while also reducing the noise generated during operation. This protective enclosure is engineered to withstand the operational stresses that occur during prolonged use, thereby enhancing the longevity and reliability of the lens grinding module. Additionally, the protective housing contributes to user safety by preventing direct contact with moving parts, thereby minimizing the risk of injury. Overall, the inclusion of the protective housing not only preserves the integrity and performance of the optical lens but also extends the lifespan of the grinding apparatus itself, ensuring consistent quality and efficiency in lens manufacturing processes.

[0097] The apparatus presents an all-encompassing system for the surface refinement of optical fiber lenses, incorporating rotational management, angle modification, and stable manipulation to produce premium lens contours. Through the unification of these functionalities, one implementation tackles prevalent difficulties in optical lens fabrication, providing enhancements in accuracy, productivity, and adaptability.

Claims

1. A method for controlling the surface grinding shape of an optical fiber lens, comprising:rotating an optical fiber along its axis using a rotation-driving module;swinging the optical fiber using a swing module to control a radial grinding angle;grinding an end of the optical fiber to form a lens shape.

2. The method of claim 1, further comprising:loading the optical fiber into a quick loading and unloading module prior to grinding;positioning the optical fiber using an accurate positioning feature; andsecuring the optical fiber using a magnetic holding module.

3. The method of claim 1, further comprising synchronizing the rotation of the optical fiber with the swinging motion to achieve a desired lens shape.

4. The method of claim 1, wherein grinding the end of the optical fiber comprises applying a grinding wheel to the end of the optical fiber while it rotates and swings and adjusting the grinding pressure based on the desired lens shape and optical fiber material.

5. The method of claim 1, wherein swinging the optical fiber comprises:adjusting the swing module to control a specific radial grinding angle for the optical fiber lens;continuously rotating the optical fiber along its axis during the grinding operation; andadjusting the rotation speed of the optical fiber to control the surface finish of the lens.

6. The method of claim 1, wherein the rotation-driving module and swing module are computer-controlled for precise lens shape formation.

7. The method of claim 1, further comprising calibrating the rotation-driving module and swing module before grinding each optical fiber.

8. The method of claim 1, further comprising grinding multiple optical fibers simultaneously using parallel grinding setups.

9. The method of claim 1, further comprising:verifying the final lens shape using an optical measurement system after grinding.

10. A method for controlling the surface grinding shape of an optical fiber lens, comprising:inserting an optical fiber into an optical fiber core dimension matching ferrule tube;aligning the optical fiber using a rotatable optical fiber guide tube;engaging a front optical fiber clamp module to secure a front portion of the optical fiber, wherein engaging the front optical fiber clamp module comprises:activating an elastic clamp holding module,activating a push-to-clamp holding module, andengaging a locking module;engaging a rear optical fiber clamp module to secure a rear portion of the optical fiber, wherein engaging the rear optical fiber clamp module comprises:activating an elastic clamp holding module,activating a push-to-clamp holding module, andengaging a locking module;rotating the optical fiber along its axis using a rotation-driving module;swinging the optical fiber using a swing module to control a radial grinding angle, wherein the swing module provides a radial grinding angle range of 0 to 90 degrees;grinding an end of the optical fiber to form a lens shape while continuously rotating the optical fiber along its axis;synchronizing the rotation of the optical fiber with the swinging motion to achieve the desired lens shape;monitoring the grinding progress using a sensor system to ensure the desired lens shape is achieved;adjusting the grinding pressure based on the desired lens shape and optical fiber material;applying a coolant to the grinding area to prevent overheating of the optical fiber;verifying the final lens shape using an optical measurement system after grinding; andreleasing the front and rear optical fiber clamp modules after completing the lens grinding operation, wherein releasing the front and rear optical fiber clamp modules comprises:disengaging the locking modules,deactivating the push-to-clamp holding modules, anddeactivating the elastic clamp holding modules.

11. An apparatus for controlling the surface grinding shape of optical fiber lenses, comprising a rotation-driving module configured to continuously rotate an optical fiber lens along an axis, a swing module configured to control the radial grinding angle of the optical fiber lens, and a quick loading and unloading module including positioner and a magnetic holder for securing the optical fiber lens.

12. The apparatus of claim 11, comprising:a ferrule tube configured to match the core dimension of an optical fiber;a rotatable optical fiber guide tube for aligning the optical fiber;a front optical fiber clamp module configured to secure a front portion of the optical fiber, wherein the front optical fiber clamp module comprises:an elastic clamp holding module,a push-to-clamp holding module, anda locking module;a rear optical fiber clamp module configured to secure a rear portion of the optical fiber, wherein the rear optical fiber clamp module comprises:an elastic clamp holding module,a push-to-clamp holding module, anda locking module;a rotation-driving module configured to continuously rotate the optical fiber along its axis;a swing module configured to control a radial grinding angle of the optical fiber;a grinding wheel configured to grind an end of the optical fiber to form a lens shape;a sensor system configured to monitor the grinding progress;an optical measurement system configured to verify the final lens shape; anda release module configured to disengage the front and rear optical fiber clamp modules after completion of the lens grinding operation.

13. The apparatus of claim 11, wherein the rotation-driving module is selectively adjustable to rotate the optical fiber lens at various speeds, and wherein the swing module includes an angular calibration system to achieve precise radial angles.

14. The apparatus of claim 11, further comprising a feedback sensor for monitoring lens shape and providing real-time adjustments.

15. The apparatus of claim 11, wherein the rotation-driving module is capable of reversing direction for complex shape creation.

16. The apparatus of claim 11, further including a cooling system to manage the thermal effects during grinding operations.

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