Press fitting system and press fitting method for lenses

Abstract

This invention relates to the field of lens manufacturing and processing, specifically to the optimized design of press-fit quality during the lens press-fit process. The purpose of this invention is to provide a press-fit system and method suitable for lenses. After the lens is removed from the material box, it is not directly sent to the press-fit station. Instead, through a pre-positioning design, a stable intermediate physical reference is set, spatially decoupling the gripping calibration and precision press-fitting. This not only improves the alignment accuracy of the press-fitting and reduces the risk of misalignment and damage, but also enables parallel processing of gripping and press-fitting, improving assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of lens manufacturing and processing, and specifically to the optimization design of press-fit quality during the lens press-fit process. Background Technology

[0002] A lens is a precision optical element, typically made of transparent materials such as glass or resin. Its surface is ground to a specific curvature, and its core function is to converge or diverge light. Lenses are characterized by their small size, high precision requirements, and susceptibility to damage. The quality of their assembly directly determines the key performance indicators of subsequent optical modules, such as the light output efficiency and beam quality of lasers.

[0003] In existing technologies, lens pressing is often a one-stop pressing process, where a transfer device directly transfers the lens from the material box to the pressing device for pressing. While this type of pressing system is simple and quick, it has the following technical drawbacks.

[0004] First, when the robotic arm picks up the lens from the material box, the lens's posture and center position are inherently deviated. This deviation will be superimposed on the robotic arm's own motion error and the long-distance movement error from the loading station to the pressing station. These errors will be directly transmitted and affect the final pressing alignment accuracy, easily causing the lens to skew during pressing and affecting optical coaxiality.

[0005] Secondly, in the direct pressing process, the high-precision pressing station is idle when the robotic arm is gripping and handling the components. This makes it difficult to achieve parallel processing of gripping and pressing actions, thus limiting further improvements in the overall equipment cycle time. Summary of the Invention

[0006] The purpose of this invention is to provide a pressing system and method suitable for lenses. After the lens is removed from the cassette, it is not directly sent to the pressing station. Instead, through a pre-positioning design, a stable intermediate physical reference is set, spatially decoupling the gripping calibration and precision pressing. This not only improves the alignment accuracy of the pressing and reduces the risk of misalignment and damage, but also enables parallel processing of gripping and pressing, improving assembly efficiency.

[0007] The present invention is achieved through the following technical solution: a press-fitting system suitable for lenses, comprising a feeding device and a pressing device, wherein the pressing device comprises a pressing drive device and a pressing head mounted on the fixing frame, characterized in that it further comprises a material transfer device and a pre-positioning device;

[0008] The transfer device is configured to transfer the lens from the loading device to the prepositioning device;

[0009] The pre-positioning device includes a forward platform, a forward module for driving the forward platform closer to or away from the clamping device, a gripper that moves relative to the forward platform, and a positioning platform for supporting the lens.

[0010] The pre-positioning device is configured such that after the lens is placed on the positioning table by the transfer device, the gripper grips the lens and sends it to the clamping device through the forward module.

[0011] As a preferred embodiment of the present invention, the positioning platform includes a column, a main platform connected to the column, and a front support platform connected to the main platform.

[0012] As a preferred embodiment of the present invention, the front support platform is located in the middle of the main platform and protrudes towards the clamping device, and the gripping claw is configured to move up and down relative to the front support platform.

[0013] As a preferred embodiment of the present invention, the gripper is provided with a pressure sensor; the gripper is configured such that when the pressure value of the pressure sensor is less than a threshold, it is determined to be in an empty gripping state.

[0014] As a preferred embodiment of the present invention, the feeding device includes a conveying module, a sliding table, a material tray placed on the sliding table, and a material tray clamp connected to the sliding table for clamping the material tray. The feeding device consists of two sets.

[0015] As a preferred embodiment of the present invention, the transfer device includes a suction cup and a vision recognition device, the transfer device being configured such that the vision recognition device identifies the position of the lens on the tray, and the suction cup transfers the lens from the tray to the prepositioning device.

[0016] As a preferred embodiment of the invention, it further includes a turntable, a rotary driver for driving the turntable to rotate, and a positioning seat for placing a lens; the positioning seat is located on the turntable and includes a guide opening; the clamping device is configured as follows:

[0017] In the first stage, the pressure head presses down with a first pressure, pushing the lens along the guide port into the positioning seat;

[0018] In the second stage after the first stage, the pressure head presses down with a second pressure to press the lens into place;

[0019] The first pressure is less than the second pressure.

[0020] As a preferred embodiment of the invention, it further includes a reverse support device disposed below the turntable, the reverse support device being configured to provide a reverse support force to the positioning seat when the clamping device performs a clamping action.

[0021] As a preferred embodiment of the invention, it further includes a gripping claw for holding the lens, the gripping claw being configured as follows:

[0022] Before the first phase begins, the gripper holds the lens tightly;

[0023] In the first phase, the gripper remains open with a first opening stroke value;

[0024] In the second phase, the gripper remains open with a second opening stroke value;

[0025] The second opening stroke value is greater than the first opening stroke value.

[0026] As a preferred embodiment of the present invention, a laser displacement sensor for obtaining a distance value d from the positioning seat is installed on the fixing frame, and the clamping device is configured to start the first stage when the distance value d is detected to reach a preset start value d.

[0027] As a preferred embodiment of the present invention, the clamping device is configured to switch from the first stage to the second stage when the distance value d is detected to reach a preset switching value d1; and to end the second stage when the distance value d2 reaches a preset end value d3.

[0028] As a preferred embodiment of the present invention, there are multiple positioning seats arranged in a circular array at uniform intervals on the turntable, and the present invention also includes a rotary driver for driving the turntable to rotate.

[0029] As a preferred embodiment of the present invention, the rotary driver is a cam indexer.

[0030] As a preferred embodiment of the invention, it also includes an ion fan for generating an ion wind to remove static electricity from the lens placed on the feeding device.

[0031] A pressing method for a lens pressing system includes the following steps:

[0032] The material transfer device moves the lens from the loading device to the positioning platform;

[0033] The gripper moves and grasps the lens on the positioning platform;

[0034] The gripper moves the lens to the clamping device, which then presses the lens down.

[0035] In summary, the present invention has the following beneficial effects:

[0036] 1. This invention spatially decouples the lens grasping and transfer process from the final pressing process by introducing an independent pre-positioning device and a material transfer device working together. This solution uses the pre-positioning device as a stable intermediate reference, effectively isolating the positional errors and vibration effects caused by directly picking up material from the feeding device. This provides the pressing device with a lens of uniform position and precise positioning, thereby systematically improving the alignment accuracy and process stability of the pressing process.

[0037] 2. A positioning platform comprising a column, main platform, and front support platform was constructed, creating a rigidly connected and stable reference platform. By placing the front support platform in the center of the main platform and protruding towards the clamping device, and configuring the gripper to rise and fall relative to it, the lens transfer path was optimized. This resulted in a shorter and more direct movement trajectory for the gripper, reducing the risk of positioning errors caused by long-distance movement and shortening the cycle time for a single operation.

[0038] 3. A pressure sensor is integrated into the gripper, and a no-grip judgment logic is set up to achieve real-time closed-loop detection of the gripping status. It can instantly identify abnormal situations such as missed gripping or gripping failure, and trigger alarms or error correction programs, effectively avoiding subsequent empty pressing operations, product omissions, or equipment damage caused by no-grip.

[0039] 4. A dual-station parallel feeding mode has been implemented. This solution allows one feeding device to continue feeding while the other is replacing or preparing the lens box. This makes the material handling device almost instantaneous, greatly reducing equipment idle time and significantly improving the overall production efficiency and equipment utilization of the entire pressing system.

[0040] 5. The vision recognition device can automatically identify the position and posture deviation of the lens in the material tray, guide the suction cup to perform precise adaptive gripping, improve the fault tolerance of the incoming material position fluctuation, and ensure the accuracy of the initial posture of the lens when it is moved to the pre-positioning device.

[0041] 6. The pressing process is divided into two stages using different pressures, achieving precise and controllable pressing. This two-stage strategy effectively reduces the risk of lens misalignment, jamming, or surface damage caused by uneven force, ensuring pressing depth and coaxiality.

[0042] 7. The reverse support device applies a reverse support force to the positioning seat during press-fitting. This counteracts the axial pressure generated when the press head presses down, preventing the turntable from elastically deforming or jumping, ensuring the stability of the positioning seat during press-fitting, and thus further guaranteeing the coaxiality and accuracy of the final assembly.

[0043] 8. The ion fan blows ion air onto the lenses in the feeding area, effectively neutralizing the static charge generated on the lens surface due to friction and other factors. This avoids poor pressing or product performance degradation caused by contaminants during precision assembly, and is particularly suitable for assembling optical components with high cleanliness requirements.

[0044] 9. By adding a laser displacement sensor and setting a pressing start distance threshold, the pressing start condition is quantified into a precise distance signal, eliminating misjudgment of pressing timing caused by device placement deviation or mechanical vibration, ensuring the consistency of the starting position of each pressing action, and providing a reliable time and position reference for the precise execution of the subsequent two-stage pressing.

[0045] 10. By utilizing the inherent high positioning accuracy, rigid locking characteristics, and smooth motion characteristics of the cam indexer, it is ensured that each positioning seat can achieve fast, accurate, and slip-free positioning at the pressing station, providing an extremely stable reference for high-precision pressing operations and effectively suppressing pressing quality problems caused by turntable positioning errors. Attached Figure Description

[0046] Figure 1 A schematic diagram of an embodiment is shown;

[0047] Figure 2 It shows Figure 1 Top view;

[0048] Figure 3 It shows Figure 1 Side view;

[0049] Figure 4 A schematic diagram of a single feeding device;

[0050] Figure 5 This is a schematic diagram of the pre-positioning device;

[0051] Figure 6 It shows Figure 1 A magnified view of the details at point A in the image.

[0052] In the diagram: 1. Clamping device; 11. Fixing frame; 12. Pressing head; 13. Clamping drive device; 21. Turntable; 22. Rotary drive; 23. Positioning seat; 3. Reverse support device; 31. Mounting frame; 32. Abutting wheel; 4. Feeding device; 41. Conveying module; 42. Sliding table; 43. Lens box; 44. Lens box clamp; 5. Pre-positioning device; 51. Forward module; 52. Positioning table; 521. Column; 522. Main table; 523. Front support table; 53. Forward table; 54. Gripping claw; 7. Transfer device; 71. Suction cup; 91. Worktable. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to the accompanying drawings.

[0054] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings.

[0055] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0056] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this specification. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0057] This embodiment provides a press-fitting system suitable for lenses, the overall structure of which is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the system is integrated on the workbench 91 and achieves lens pressing through modular devices. The overall layout of the system adopts a linear streamline design, with the feeding device 4, the transferring device 7, the pre-positioning device 5, and the pressing device 1 arranged in sequence. The turntable 21 and the reverse support device 3 are located at the pressing station, forming a compact and functionally distinct production line.

[0058] First, lens loading and static electricity removal.

[0059] After the system starts, the feeding device 4 is responsible for the continuous supply of lenses. For example... Figure 4 As shown, there are two sets of feeding devices 4, symmetrically installed on one side of the workbench 91. Each set has the same structure, including a conveying module 41, a sliding table 42, a material tray 43, and a material tray clamp 44. For example, the conveying module 41 adopts a ball screw mechanism driven by a servo motor, which is connected to the sliding table 42 through a coupling to realize the precise movement of the sliding table 42 along the linear guide rail.

[0060] The tray 43 is placed on the sliding table 42 by a positioning pin. The tray clamp 44 is a pneumatic gripper structure. Its clamping arm is hinged to the sliding table 42 by a hinge. The clamping force can be set by a pressure regulating valve to ensure that the tray 43 has no risk of slipping during movement.

[0061] The two feeding devices 4 operate in an alternating mode: when one is feeding, the other can automatically exit the workstation via the conveyor module 41, making it convenient for operators to change the material tray 43. This design ensures that the material handling operation of the transfer device 7 is almost uninterrupted, improving equipment utilization.

[0062] In addition, an ion fan (not shown in the figure) can be installed above the feeding device 4, with its outlet facing the material tray 43 area. It generates a balanced ion wind through a high-voltage generator. The ion wind effectively neutralizes the static charge on the lens surface, avoiding damage to the optical surface caused by dust adsorption or electrostatic discharge, and is suitable for precision assembly environments with high cleanliness requirements.

[0063] Then, the material handling and visual positioning steps begin.

[0064] After the lenses are supplied by the feeding device 4, the transferring device 7 performs the tasks of picking up and transferring the lenses. For example... Figure 1 , Figure 2 , Figure 3 As shown, the material handling device 7 can be a multi-axis robotic arm structure, with its base fixed to the worktable 91, and a suction cup 71 and a vision recognition device installed at the end of the arm.

[0065] The suction cup 71 can be made of soft polyurethane material and connected to a negative pressure pipeline via a vacuum generator to avoid damaging the lens surface. The visual recognition device is a CCD camera and can be equipped with a ring light source.

[0066] For example, the vision recognition device acquires an image of the material tray 43, and runs a template matching algorithm through an embedded processor to identify the center coordinates and orientation angle of the lens. Based on this, the control system plans the motion trajectory of the suction cup 71, driving a servo motor to move the suction cup 71 along a three-dimensional path to directly above the lens. After the suction cup 71 descends and contacts the lens, the vacuum valve opens, adsorbing and lifting the lens. The visual positioning technology compensates for placement errors of the material tray 43 and lens pose fluctuations, avoiding the time consumed by manual calibration.

[0067] The next step is the precise positioning and handover of the pre-positioning device.

[0068] After the lens is placed on the pre-positioning device 5 by the transfer device 7, the device performs precise positioning and transfer functions. For example... Figure 5 As shown, the pre-positioning device 5 includes a forward stage 53, a forward module 51, a gripper 54, and a positioning stage 52.

[0069] The positioning stage 52 is connected to the worktable 91 via a column 521. Its structure includes a main stage 522 and a front support stage 523. The main stage 522 is fixedly connected to the column 521; the front support stage 523 is a cantilever structure extending forward from the middle of the main stage 522, with ribs reinforcing its rigidity, and its top surface provides stable support for the lens. The gripper 54 can be a pneumatic two-finger gripper, connected to the forward stage 53, and its lifting stroke relative to the forward stage can be driven by a cylinder. The gripper 54 has piezoelectric pressure sensors embedded in its fingertips, which are connected to a PLC via cables to provide real-time feedback of the gripping force.

[0070] The lens is placed on the positioning stage 52, with its lower surface supported on the top surface of the front support stage 523. The gripper 54 moves upwards to both sides of the lens to grasp it. A pressure sensor monitors the gripping force. If the force is below a threshold, such as 5 Newtons, the system determines that the lens is not gripping and triggers an audible and visual alarm. Otherwise, the gripper 54 firmly holds the lens.

[0071] The forward module 51 is a synchronous belt mechanism driven by a servo motor, which drives the forward table 53 to move along the linear slide rail toward the pressing device 1.

[0072] Then, the pressing step begins.

[0073] like Figure 1 , Figure 2 and Figure 3 As shown, the clamping device 1 is mounted above the worktable 91 via a fixing frame 11 and is used to perform a pressing action on the lens. The turntable 21 is driven by a rotary driver 22 and is arranged horizontally on the worktable 91. Multiple positioning seats 23 are evenly spaced in a ring array on its surface. Each positioning seat 23 is provided with a guide port for accommodating and guiding the lens.

[0074] The reverse support device 3 is installed below the worktable 91 and abuts against the bottom surface of the turntable 21 to provide reverse support force during the pressing process.

[0075] The specific structure of the clamping device 1 is as follows: Figure 2 and Figure 3 As shown, it includes a fixed frame 11, a pressure head 12, a pressing drive device 13, and a laser displacement sensor. The fixed frame 11 is a rigid frame that can be fixed to the worktable 91 with bolts. The pressing drive device 13, for example, is a servo motor, mounted on the top of the fixed frame 11, with its output end connected to the pressure head 12, for driving the pressure head 12 to move vertically. The pressure head 12 can be made of tungsten carbide wear-resistant material, and its lower end face is flat to ensure uniform contact with the lens. The laser displacement sensor can be mounted on the side of the fixed frame 11 to detect the distance d between the pressure head 12 and the positioning seat 23 in real time, and its signal output end is connected to the control system. The laser displacement sensor has an accuracy of 0.01 mm, realizing micron-level control of the pressing start position and avoiding the cumulative error problem of traditional mechanical limit switches.

[0076] Structural details of positioning seat 23 as follows Figure 6 As shown, it is made of stainless steel and machined by a high-precision CNC machine tool. In some embodiments, the guide port can be tapered with a cone angle of 30 degrees to facilitate the initial insertion of the lens. The positioning seat 23 is fixed to the turntable 21 by screws. The turntable 21 is driven by the rotary driver 22, specifically a cam indexer, to achieve intermittent rotation and ensure that each positioning seat 23 is accurately positioned at the press-fitting station.

[0077] The reverse support device 3 includes a mounting frame 31 and an abutment wheel 32. The mounting frame 31 is fixed to the bottom of the worktable 91, and the abutment wheel 32 is connected to the mounting frame 31 via bearings. Its wheel surface makes rolling contact with the bottom surface of the turntable 21, and the abutment wheel 32 is positioned directly opposite the pressure head 12, thereby providing a stable reverse support force during pressing. The abutment wheel 32 can be made of polyurethane, which ensures support rigidity while reducing wear on the turntable surface. Its reverse support force is adjustable from 50 to 200 Newtons, effectively suppressing the elastic deformation of the turntable under pressure.

[0078] The pressing method in this embodiment is implemented in the following time steps:

[0079] S1, Lens Placement Step. The gripper 54 places the lens into the guide opening of the positioning seat 23 at the current workstation. Simultaneously, the ion fan starts, generating an ion wind that blows onto the lens surface. The ion wind velocity can be controlled at 2 meters per second, effectively neutralizing the static charge accumulated during handling and reducing the surface electrostatic voltage to below 100 volts. This step avoids the risk of optical device chip breakdown caused by electrostatic discharge, achieving high electrostatic removal efficiency and improving product yield.

[0080] S2, Gripping and Distance Detection Steps. The gripper configured by the system grips the lens tightly before pressing to prevent it from falling off. The laser displacement sensor detects the distance d between the pressure head 12 and the positioning seat 23 in real time. When the distance d reaches the preset start value d1, for example, 10 mm, the control system determines that the pressing conditions are met and triggers the pressing device 1 to start operating.

[0081] By controlling the distance quantization, misjudgments caused by device placement deviations or mechanical vibrations are eliminated, ensuring the consistency of the press-fit starting position.

[0082] S3, the first stage of pressing down, which is the initial import and centering.

[0083] The clamping drive 13 drives the pressure head 12 to press down with a first pressure, for example, 5 Newtons. Under the action of the pressure head 12, the lens slowly enters along the guide opening of the positioning seat 23. During this stage, the gripping claw remains open with a first opening stroke value, for example, 2 mm. This provides both a flexible grip to prevent the device from falling and allows the device to be finely adjusted for centering under the action of the guide opening.

[0084] The initial pressure is relatively small, effectively utilizing the geometry of the guide port for preliminary alignment, dispersing the contact stress across the entire conical surface, avoiding micro-cracks caused by stress concentration, and significantly reducing the risk of device skew caused by directly applying large pressure. The skew angle is controlled within a reasonable range, such as within 0.1 degrees.

[0085] S4, the second stage of pressing down, which is the final pressing and positioning.

[0086] When the laser displacement sensor detects that the distance value d reaches the preset switching value d2, such as 3 mm, the control system switches to the second stage, and the pressure head 12 presses down with a second pressure, such as 20 Newtons, to press the lens into the positioning seat 23.

[0087] During this stage, the gripper fully opens at its second opening stroke value, for example, 5 mm, and avoids interference, providing a non-interference space for the pressing process.

[0088] The second pressure is relatively high, ensuring the consistency of the pressing depth. At the same time, the reverse support device 3 provides reverse support force to the turntable 21 through the abutment wheel 32, suppressing the deformation of the turntable and ensuring that the coaxiality of the pressure head 12 and the positioning seat 23 is within a reasonable range, for example, within 0.02 mm.

[0089] S5, the pressure head resets and the turntable rotates. When the distance value d reaches the preset end value d3, for example, 0.5 mm, the pressing is completed, and the pressure head 12 is reset to the initial position under the drive of the pressing drive device 13.

[0090] Subsequently, the rotary driver 22 drives the turntable 21 to rotate, moving the next positioning seat 23 to the press-fitting station, and repeating the above process.

[0091] The rotary table 21 is driven by a cam indexer with an indexing accuracy of 30 seconds, achieving high-precision, slip-free positioning and ensuring the stability of the press-fitting station.

[0092] In summary, this invention achieves high-quality, high-consistency, and automated pressing of optical components through a two-stage pressing scheme, laser displacement sensing control, coordinated action of the gripper, and reverse support design. Its step-by-step execution not only optimizes pressing accuracy but also improves system reliability and efficiency.

[0093] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. Furthermore, the terms "vertical," "horizontal," "front," and "rear," etc., mentioned in the embodiments of the present invention indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be further noted that, unless otherwise explicitly specified and limited, terms such as "install," "connect," "join," and "fix" in the description should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0094] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A press-fit system suitable for lenses, comprising a loading device (4) and a pressing device (1), said pressing device (1) comprising a fixed frame (11), a pressing drive device (13) and a pressing head (12) mounted on said fixed frame (11), characterized in that, It also includes a material transfer device (7) and a prepositioning device (5). The transfer device (7) is configured to transfer the lens from the loading device (4) to the prepositioning device (5). The prepositioning device (5) includes a front platform (53), a front module (51) for driving the front platform (53) closer to or further away from the clamping device (1), a gripper (54) for moving relative to the front platform (53), and a positioning platform (52) for supporting the lens. The prepositioning device (5) is configured such that after the lens is placed on the positioning table (52) by the transfer device (7), the gripper (54) grips the lens and sends it to the pressing device (1) through the forward module (51). It also includes a turntable (21), a rotary driver (22) for driving the turntable (21) to rotate, and a positioning seat (23) for placing the lens; the positioning seat (23) is located on the turntable (21) and includes a guide port; the clamping device (1) is configured as follows: In the first stage, the pressure head (12) presses down with a first pressure to push the lens into the positioning seat (23) along the guide port. In the second stage after the first stage ends, the pressure head (12) presses down with a second pressure to press the lens into place; The first pressure is less than the second pressure; The gripper (54) is configured as follows: Before the first phase begins, the gripper (54) grips the device; In the first stage, the gripper (54) remains open with a first opening stroke value, during which the gripper (54) provides both a flexible grip to prevent the device from falling and allows the device to be finely aligned under the action of the guide port; In the second stage, the gripper (54) remains open with a second opening stroke value. In this stage, the gripper (54) is fully open and avoids interference, providing a non-interference space for the pressing process. The second opening stroke value is greater than the first opening stroke value.

2. The press-fit system suitable for lenses according to claim 1, characterized in that: The positioning platform (52) includes a column (521), a main platform (522) connected to the column (521), and a front support platform (523) connected to the main platform (522).

3. The press-fitting system for lenses according to claim 2, characterized in that: The front support platform (523) is located in the middle of the main platform (522) and protrudes towards the clamping device (1). The gripping claw (54) is configured to move up and down relative to the front support platform (523).

4. The lens pressing system according to claim 3, characterized in that: The gripper (54) is equipped with a pressure sensor; the gripper (54) is configured to determine that it is in an empty gripping state when the pressure value of the pressure sensor is less than a threshold.

5. The press-fitting system for lenses according to claim 1, characterized in that: The feeding device (4) includes a conveying module (41), a sliding table (42), a material tray (43) placed on the sliding table (42), and a material tray clamp (44) connected to the sliding table (42) and used to clamp the material tray (43). There are two sets of the feeding device (4).

6. The press-fitting system for lenses according to claim 5, characterized in that: The transfer device (7) includes a suction cup (71) and a vision identifier. The transfer device (7) is configured to identify the position of the lens on the tray (43) by the vision identifier, and the suction cup (71) transfers the lens from the tray (43) to the prepositioning device (5).

7. The press-fitting system for lenses according to claim 1, characterized in that: It also includes a reverse support device (3) located below the turntable (21), the reverse support device (3) being configured to provide a reverse support force to the positioning seat (23) when the clamping device (1) performs a clamping action.

8. The press-fitting system for lenses according to claim 1, characterized in that: It also includes an ion fan for generating an ion wind to remove static electricity from the lens placed on the feeding device (4).

9. The pressing method for a lens pressing system according to any one of claims 1-8, characterized in that, It includes the following steps: The transfer device (7) moves the lens from the loading device (4) to the positioning table (52); The gripper (54) moves and grips the lens on the positioning platform (52); The gripper (54) moves the lens to the clamping device (1), which then presses the lens down.

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