Multi-station optical lens centering apparatus

Abstract

The application relates to the technical field of lens positioning, and particularly discloses a multi-station optical lens centering equipment which comprises a rack, a base arranged on the rack and a laser positioning system. The base is provided with an annular seat and a driving assembly, the annular seat is uniformly provided with at least three elastic telescopic pieces, the driving assembly is used for driving the elastic telescopic pieces to slide along the radial direction of the annular seat, a return spring is arranged between the elastic telescopic piece and the annular seat, the end of each elastic telescopic piece is provided with a placing table, and a connecting piece is arranged between the placing table and the elastic telescopic piece. The laser positioning system comprises an optical detection device and a positioning device, the positioning device comprises a lifting piece and a pressing ring hingedly arranged at the bottom of the lifting piece, the bottom of the pressing ring is provided with an insertion block matched with an insertion groove, and the top surface of the placing table is provided with an inclined block matched with the pressing ring. The application can quickly position the X and Y axes of the lens and complete the positioning of the Z axis.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lens positioning, in particular to a multi-station optical lens centering device. BACKGROUND

[0002] The multi-station optical lens centering device is a representative equipment for modern precision optical manufacturing to move towards automation, intelligence and ultra-high precision. With the increasing performance requirements of optical products, the importance of such equipment will become increasingly prominent. Through the cooperative work of multiple stations, the center of the optical lens is accurately aligned in one clamping or continuous flow, and the optical axis of the lens is ensured to coincide with the mechanical axis.

[0003] A lens centering device is disclosed in Chinese patent document CN109682578B, which comprises a supporting table, a lens bearing platform connected with the supporting table, a light source assembly and a detection camera coaxially arranged on opposite sides of the lens bearing platform, an adjusting assembly on one side of the lens bearing platform, and an exposure assembly. The lens bearing platform is provided with a rotating assembly for driving the lens bearing platform to rotate. The adjusting assembly comprises a support, a first driving assembly supported on the support, a second driving assembly supported on the first driving assembly, and a third driving assembly supported on the second driving assembly. The automatic centering device comprises a feeding device and a lens centering device. The lens centering device is fixed on a first rack. A tray slide is provided on the tray support plate. A pin hole is provided on the lens tray. The pawl cooperates with the pin hole on the lens tray to ensure the positioning of the X direction under the drive of the first material taking driving assembly. In addition, a roller plunger is also provided on the tray support plate. The lens tray moves to the right and contacts the roller plunger. The roller plunger applies a positive pressure to generate frictional resistance to prevent the lens tray from overshooting in the X axis direction, thereby ensuring the accurate positioning of the lens tray in the X axis direction. Y direction positioning relies on the roller plunger to apply Y direction pressure to the lens tray to make the lens tray close to the track reference surface, thereby achieving Y direction accurate positioning.

[0004] The above technical solution adjusts the positions of X and Y axes in sequence to realize the centering of the lens and assumes that the Z axis positioning is accurate. However, the centering process of X and Y axes is relatively troublesome in the positioning process, and the Z axis is not positioned. If the lens deflects, even if the centering of X and Y axes is accurate, the optical axis of the lens and the mechanical axis are also difficult to completely coincide. SUMMARY

[0005] The present application provides a multi-station optical lens centering device, which aims to solve the problem that the centering device in the related art cannot completely position the lens.

[0006] A multi-station optical lens centering device includes: a frame, a base mounted on the frame, and a laser positioning system; the base is provided with an annular seat and a driving assembly, at least three elastic telescopic members are evenly distributed on the annular seat, the driving assembly is used to drive the elastic telescopic members to slide radially along the annular seat, a return spring is installed between the elastic telescopic members and the annular seat, each elastic telescopic member has a placement platform at its end, and a connecting member connects the placement platform and the elastic telescopic member; the laser positioning system includes an optical detection device and a positioning device, the positioning device includes a lifting member and a pressing ring hinged to the bottom of the lifting member, the bottom of the pressing ring has an insertion block that mates with a slot, the top surface of the placement platform has an inclined block that mates with the pressing ring, when the insertion block descends it abuts against the inclined block, thereby moving the placement platform toward the center of the annular seat, when the insertion block enters the slot, the placement platform pushes the center of the lens to align with the center of the annular seat, when the insertion block penetrates the slot, the placement platform disengages from the elastic telescopic member, the driving assembly can drive the insertion block to rotate about the axis of the pressing ring as the rotation center, the lifting member and the driving assembly are both signal connected to the optical detection device.

[0007] Its effect is as follows: After the lens is placed on the placement table, the drive component moves the elastic telescopic component closer to the center of the ring seat, completing the initial fixation of the lens on the horizontal plane. The lifting component moves the pressing ring down. When the insert block enters the slot from the inclined block, the placement table continues to move towards the center of the ring seat and completes the clamping of the lens, so that the lens is accurately positioned on the horizontal plane. At the same time, the insert block pushes the movable end of the connector to move, so that the elastic telescopic rod and the placement table can slide relative to each other. Then, the drive component drives the placement table to rotate, and the lifting component drives the pressing ring to rise and fall, adjusting the tilt angle of the pressing ring and thus adjusting the angle of the lens, finally completing the centering of the lens.

[0008] Preferably, the annular seat has multiple grooves along its radial direction. The elastic telescopic member is slidably disposed within the grooves. The end of the elastic telescopic member away from the center of the annular seat is a V-shaped block. The driving assembly includes a driving motor, a driving ring, and driving blocks fixedly disposed on the driving ring. The driving motor is mounted on a base, and the driving ring is rotatably disposed on the base. Multiple driving blocks are provided, each corresponding to a V-shaped block. The bottom of the driving ring has multiple protrusions penetrating the annular seat. A connecting ring is installed at the output end of the driving motor. Multiple external pushing blocks are fixedly disposed on the outer ring of the connecting ring, each corresponding to and abutting against a protrusion. The driving motor drives the driving ring to rotate, thereby causing the driving blocks on the driving ring to abut against the V-shaped blocks, and causing the elastic telescopic member to move towards the center of the annular seat.

[0009] Preferably, the elastic telescopic member includes a first end, a second end, and a compression spring. The first end is away from the center of the annular seat, and the second end is close to the center of the annular seat. Both the first end and the second end are slidably disposed in the slide groove. The compression spring is installed between the first end and the second end, with one end of the compression spring connected to the first end and the other end connected to the second end. The placement platform is installed on the second end. When the driving assembly drives the elastic telescopic member to move toward the center of the annular seat, the lens is initially clamped by the elastic telescopic member. Since the first end and the second end are connected by the compression spring, flexible clamping of the lens can be achieved when the lens is initially fixed.

[0010] Preferably, a ladder is provided on the side of the placement platform near the center of the annular seat. The ladder has a horizontal plane and a vertical plane. The horizontal plane of the ladder is used to place the lens, and the vertical plane of the ladder has a clamping head with a ball bearing. The lens is placed on the ladder and clamped by the clamping head.

[0011] Preferably, the elastic telescopic member has a horizontal groove in the horizontal direction, and a horizontal block in the horizontal direction is fixedly set on the placement platform. The horizontal block is slidably set on the horizontal groove, and the horizontal block has a chamfer. By setting the horizontal groove and the horizontal block, the placement platform and the elastic telescopic member are kept fixed in vertical placement. When the pressing ring presses on the placement platform, the elastic telescopic member supports the placement platform in the vertical direction.

[0012] Preferably, the connector includes a connecting groove and an elastic connecting block. The elastic connecting block includes a block body and a connecting spring. The block body cooperates with the connecting groove and is located below the slot. A wedge-shaped groove is formed on the upper end face of the block body. When the connecting spring is at its original length, the wedge-shaped groove communicates with the slot. When the insert block penetrates into the wedge-shaped groove, the connecting spring is compressed, and the insert block abuts against the wedge-shaped groove. The connector realizes the connection between the placement platform and the elastic telescopic member. When the insert block enters into the slot and penetrates into the wedge-shaped groove, the insert block and the block body abut against each other, so that multiple insert blocks form a clamping effect on the placement platform. At the same time, the block body moves out of the connecting groove, so that the placement platform and the elastic telescopic member can move relative to each other.

[0013] Preferably, the lifting component is an electric telescopic rod, and the lifting component is provided with at least two sets. Each set of electric telescopic rods is hinged to the pressing ring. The upper end of all electric telescopic rods is connected to the same rotating ring, which is rotatably mounted on the base. The pressing ring is raised and lowered by the electric telescopic rods, thereby adjusting the angle of lens deflection.

[0014] Preferably, the inner ring of the connecting ring is provided with multiple inner pushing blocks, and the inner pushing blocks correspond one-to-one with the insert blocks; the insert blocks are driven to rotate by the pushing blocks in the pushing ring, thereby causing the lens to rotate to a suitable angle, and then the lifting component drives the lens to rotate.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0016] 1. The operator or automated robot places the optical lens to be centered on the horizontal surface of the placement platform. The drive motor starts, driving the drive ring to rotate via the connecting ring. The drive block on the drive ring pushes the V-block on the elastic telescopic component, causing multiple elastic telescopic components to move radially towards the center along the annular seat. At this time, the springs inside the elastic telescopic components are compressed, and the ball bearings on the clamping head on the placement platform flexibly push the lens towards the center of the annular seat, completing the initial radial centering of the lens.

[0017] 2. Subsequently, the lifting component (electric telescopic rod) descends, causing the pressing ring to move downwards. The insert at the bottom of the pressing ring enters the slot of the placement platform. When the insert enters the slot, it pushes the placement platform, further aligning the lens with the center of the ring seat, completing the initial horizontal centering of the lens. As the insert continues to descend, it enters the wedge groove in the elastic connecting block of the connector, compressing the connecting spring and causing the insert to abut against the wedge groove, thereby precisely fixing the placement platform. When the insert is fully inserted through the slot, the placement platform disengages from the elastic telescopic component. At this point, the lens is precisely clamped by the pressing ring, and the inclined block on the pressing ring cooperates with the inclined block on the placement platform to complete the precise positioning of the lens in the horizontal plane (X, Y axes).

[0018] 3. After the lens is clamped by the pressing ring, the optical detection device calculates the axial deflection angle deviation of the lens in real time. Based on the data fed back by the optical detection device, the control system coordinates the drive assembly and the lifting component to make adjustments. The drive assembly drives the insert block to rotate around the axis of the pressing ring via an internal push block. The electric telescopic rod in the lifting component will finely adjust its extension length as needed, changing the lifting height and tilt angle of the pressing ring to accurately correct the Z-axis (axial tilt) of the lens. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the laser positioning system and base of the present invention.

[0020] Figure 2 This is a schematic diagram of the base structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the positioning device of the present invention.

[0022] Figure 4 This is a schematic diagram of the base and elastic telescopic component of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the driving component of the present invention.

[0024] Figure 6 This is a schematic diagram of the elastic telescopic component and the placement platform of the present invention.

[0025] Figure 7 This is a schematic diagram of the connector of the present invention.

[0026] Figure 8 This is a schematic diagram of the slide and return spring of the present invention.

[0027] Figure label:

[0028] 1. Frame; 2. Base; 21. Ring seat; 22. Slide groove; 23. Receiving groove; 24. Return spring; 3. Laser positioning system; 31. Optical detection device; 32. Positioning device; 321. Lifting component; 322. Pressing ring; 323. Insert block; 4. Drive assembly; 41. Drive motor; 42. Drive ring; 43. Drive block; 44. Protrusion; 45. Connecting ring; 46. Outer pushing block; 47. Inner pushing block; 5. Elastic telescopic component; 51. First end; 52. Second end; 53. Compression spring; 54. Horizontal groove; 6. Placement platform; 61. Inclined block; 62. Slot; 63. Ladder platform; 64. Clamping head; 65. Horizontal block; 7. Connecting component; 71. Connecting groove; 72. Elastic connecting block; 721. Block; 722. Connecting spring; 723. Wedge groove. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1-8 As shown, in the first embodiment of the present invention, a multi-station optical lens centering device includes: a frame 1, a base 2 and a laser positioning system 3. The frame 1 serves as the support frame of the device, provides the mounting base for the base 2, and is the carrier of the core functional components of the device. The base 2 is provided with a ring seat 21 and a drive assembly 4.

[0031] The base 2 is provided with an annular seat 21, which is ring-shaped and is used to guide and support multiple elastic telescopic members 5. At least three elastic telescopic members 5 are evenly distributed on the annular seat 21. In this embodiment, three elastic telescopic members 5 are preferably provided to form a stable three-point support system.

[0032] Each elastic telescopic member 5 is connected to a placement platform 6 at its end for supporting the optical lens to be centered. A return spring 24 is installed between the elastic telescopic member 5 and the annular seat 21 to ensure that the elastic telescopic member 5 can return to its original position when there is no external force.

[0033] To achieve radial sliding of the elastic telescopic member 5, multiple radially extending grooves 22 are provided on the annular seat 21. The elastic telescopic member 5 is slidably disposed within these grooves 22. A V-shaped block is provided at the end of the elastic telescopic member 5 away from the center of the annular seat 21. The specific structure of the elastic telescopic member 5 includes: a first end 51, a second end 52, and a compression spring 53. The first end 51 is located on the side away from the center of the annular seat 21, and the second end 52 is close to the center of the annular seat 21. Both the first end 51 and the second end 52 are slidably disposed within the grooves 22. The compression spring 53 is installed between the first end 51 and the second end 52, with one end connected to the first end 51 and the other end connected to the second end 52. The placement platform 6 is installed on the second end 52. This design allows the elastic telescopic member 5 to slide in the radial direction of the annular seat 21, and the compression spring 53 provides displacement space for the second end 52 along the radial direction of the annular seat 21.

[0034] Furthermore, a receiving groove 23 is provided in the first end 51, in which a return spring 24 is provided, one end of which is connected to the inner wall of the receiving groove 23 and the other end is connected to the annular seat 21 to ensure the accurate reset of the elastic telescopic member 5.

[0035] The placement platform 6 is the component that directly supports the lens. A slot 62 is provided on its upper surface. A ladder 63 is provided on the side of the placement platform 6 near the center of the annular seat 21. The ladder 63 has a horizontal surface and a vertical surface. The horizontal surface is used to place the lens to be centered. A clamping head 64 is provided on the vertical surface. A ball bearing is provided on the clamping head 64. The presence of the ball bearing reduces the friction of the lens during the centering process and protects the lens surface. In order to achieve a stable connection and sliding between the placement platform 6 and the elastic telescopic member 5, a horizontal groove 54 is provided on the elastic telescopic member 5. A horizontal block 65 is fixedly provided on the placement platform 6. The horizontal block 65 is slidably disposed on the horizontal groove 54. A chamfer is also provided on it. When the horizontal block 65 is reset, the horizontal block 65 can abut against the horizontal groove 54 through the chamfer, so that it can slide smoothly into the horizontal groove 54.

[0036] The placement platform 6 and the elastic telescopic member 5 are connected by a connector 7. The connector 7 includes a connecting groove 71 and an elastic connecting block 72. The elastic connecting block 72 consists of a block body 721 and a connecting spring 722. The block body 721 mates with the connecting groove 71 and is located below the slot 62 of the placement platform 6. A wedge-shaped groove 723 is formed on the upper end face of the block body 721. When the connecting spring 722 is in its original length state, the wedge-shaped groove 723 communicates with the slot 62. When the insert 323 at the bottom of the pressing ring 322 in the laser positioning system 3 penetrates into the wedge groove 723, the connecting spring 722 is compressed, and the insert 323 abuts against the wedge groove 723, thereby achieving precise fixation of the placement stage 6 and positioning of the lens on the horizontal plane. At this time, the insert 323 abuts against the wedge groove 723 opened on the block 721, and multiple inserts 323 form a clamping of the placement stage 6. At this time, the block 721 is removed from the connecting groove 71, and the driving component 4 can drive the placement stage 6 to rotate.

[0037] The laser positioning system 3 is the core for achieving high-precision centering, and includes an optical detection device 31 and a positioning device 32. The optical detection device 31 is a CCD camera or a laser rangefinder, used to monitor the horizontal position deviation and axial tilt angle of the lens in real time. The positioning device 32 includes a lifting component 321 and a pressing ring 322 hinged to the bottom of the lifting component 321. A wedge 61 that mates with the pressing ring 322 is provided on the top surface of the placement platform 6. A plug 323 that mates with the slot 62 of the placement platform 6 is provided at the bottom of the pressing ring 322. The lifting component 321 is preferably an electric telescopic rod, and at least two sets are provided, preferably four sets in this embodiment. Each set of electric telescopic rods is hinged to the pressing ring 322. The upper end of all electric telescopic rods is connected to the same rotating ring, which is rotatably mounted on the base 2. By independently controlling the extension and retraction length of each electric telescopic rod, the pressing ring 322 can be precisely raised and lowered and its tilt angle adjusted, thereby adjusting the angle of the lens. The lifting component 321 and the drive assembly 4 are both connected to the optical detection device 31 to achieve closed-loop control.

[0038] The drive assembly 4 is used to drive the elastic telescopic member 5 to slide radially along the annular seat 21. The drive assembly 4 includes a drive motor 41, a drive ring 42, and multiple drive blocks 43 fixed on the drive ring 42. The drive motor 41 is mounted on the base 2, and its output end is connected to the drive ring 42 through a connecting ring 45. The drive ring 42 is rotatably mounted on the base 2. The multiple drive blocks 43 correspond one-to-one with the V-shaped blocks on the elastic telescopic member 5. When the drive ring 42 rotates, the drive blocks 43 push the V-shaped blocks, thereby causing the elastic telescopic member 5 to move radially. The bottom of the drive ring 42 is also provided with multiple protrusions 44 that penetrate the annular seat 21. Multiple external push blocks 46 are fixed on the outer ring of the connecting ring 45. These external push blocks 46 correspond one-to-one with the protrusions 44 and abut against them, transmitting the rotational power of the drive motor 41 to the drive ring 42.

[0039] In addition, the inner ring of the drive ring 42 is provided with multiple inner push blocks 47, which correspond one-to-one with the insertion blocks 323 in the laser positioning system 3. They are used to drive the insertion blocks 323 to rotate around the axis of the pressing ring 322. When the connecting ring 45 rotates clockwise, it drives the drive ring 42 to rotate. When the connecting ring 45 rotates counterclockwise, the inner push blocks 47 drive the insertion blocks 323 that penetrate to the bottom of the placement stage 6 to rotate. When the horizontal block 65 disengages from the horizontal groove 54, the lifting component 321 can drive the pressing ring 322 to rise and fall. The lifting height of the lifting component 321 and the angle at which the drive assembly drives the placement stage 6 to rotate can be controlled by the optical detection device 31. Finally, the deflection angle of the placement stage 6 is determined, and the adjustment of the axis deflection angle of the lens is completed.

[0040] Example 2: Different types and stiffnesses of elastic elements can be selected based on the weight and material properties of the lens. For example, for heavier lenses or lenses requiring greater clamping force, a more stiff disc spring or wave spring can be used; for fragile or surface-sensitive lenses, a softer silicone elastomer or a spring with adjustable preload can be used to ensure that the force applied to the lens during clamping is uniform and controllable, avoiding damage. Furthermore, the preload of the connecting spring 722 can be externally adjusted via a fine-tuning mechanism to adapt to different working conditions.

[0041] Example 3: This example is basically the same as Example 1, with the main difference being the configuration of the optical detection device 31 in the laser positioning system 3. In this example, the optical detection device 31 can be a CCD camera or a laser rangefinder. In this example, to further improve detection accuracy and speed, a composite detection scheme can be adopted, for example: combining a high-resolution CCD camera for two-dimensional image analysis, while integrating a multi-point laser triangulation sensor or confocal microscope to achieve accurate acquisition of lens surface morphology and height information. Through data fusion algorithms, the center position and axis deflection angle of the lens can be calculated more comprehensively and accurately. In addition, a deep learning-based image recognition algorithm can be introduced, which can not only identify centering deviations but also detect lens surface defects in real time, providing more information for quality control.

[0042] Working principle:

[0043] An operator or automated robot places the optical lens to be centered on the horizontal surface of the platform 63. The drive motor 41 starts, driving the drive ring 42 to rotate via the connecting ring 45. The drive block 43 on the drive ring 42 pushes the V-shaped block on the elastic telescopic member 5, causing multiple elastic telescopic members 5 to move radially towards the center along the annular seat 21. At this time, the springs inside the elastic telescopic members 5 are compressed, and the ball bearings on the clamping head 64 on the platform 6 flexibly push the lens towards the center of the annular seat 21, completing the initial radial centering of the lens. The lifting member 321 (electric telescopic rod) descends, driving the pressing ring 322 downwards. The insert 323 at the bottom of the pressing ring 322 enters the slot 62 of the platform 6. When the insert 323 enters the slot 62, it pushes the platform 6, further aligning the lens with the center of the annular seat 21, completing the initial horizontal centering of the lens. As the insert 323 continues to descend, it enters the wedge-shaped groove 723 in the elastic connecting block 72 of the connector 7, compressing the connecting spring 722 and causing the insert 323 to abut against the wedge-shaped groove 723, thereby precisely fixing the placement platform 6. When the insert 323 has fully penetrated the slot 62, the driving assembly 4 drives the pressing ring 322 to rotate. The rotation of the pressing ring 322 causes the placement platform 6 to rotate, causing the placement platform 6 to disengage from the elastic telescopic member 5. At this point, the lens is precisely clamped by the pressing ring 322. The inclined block 61 on the pressing ring 322 cooperates with the inclined block 61 on the placement stage 6 to complete the precise positioning of the lens in the horizontal plane (X, Y axes). After the lens is clamped by the pressing ring 322, the optical detection device 31 calculates the deviation of the lens's axis deflection angle in real time. Based on the data fed back by the optical detection device 31, the control system will coordinate with the drive component 4 and the lifting component 321 to make adjustments. The drive component 4 drives the insertion block 323 to rotate around the axis of the pressing ring 322 as the rotation center through the internal push block 47. The electric telescopic rod in the lifting component 321 will finely adjust its extension length as needed to change the lifting height and tilt angle of the pressing ring 322 to accurately correct the Z-axis (axis tilt) of the lens. Through this coordinated, closed-loop control, the equipment can accurately adjust the position and axis angle of the lens in the X, Y, Z three-dimensional space, and finally achieve complete coincidence of the optical axis and the mechanical axis. When the optical detection device 31 confirms that the XYZ three-dimensional centering accuracy of the lens meets the preset requirements, the centering process is completed.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-station optical lens centering device, comprising: A frame (1), a base (2) mounted on the frame (1), and a laser positioning system (3); characterized in that: The base (2) is provided with an annular seat (21) and a drive assembly (4). At least three elastic telescopic members (5) are evenly distributed on the annular seat (21). The drive assembly (4) is used to drive the elastic telescopic members (5) to slide radially along the annular seat (21). A return spring (24) is installed between the elastic telescopic member (5) and the annular seat (21). Each elastic telescopic member (5) has a placement platform (6) at its end. A connector (7) is connected between the placement platform (6) and the elastic telescopic member (5). The laser positioning system (3) includes an optical detection device (31) and a positioning device (32). The positioning device (32) includes a lifting component (321) and a pressing ring (322) hinged to the bottom of the lifting component (321). A slot (62) is provided on the placement platform (6). A plug (323) that mates with the slot (62) is provided at the bottom of the pressing ring (322). An inclined block (61) that mates with the pressing ring (322) is provided on the top surface of the placement platform (6). When the plug (323) descends, it abuts against the inclined block (61), thereby causing the placement platform (6) to move toward the center of the ring seat (21). 3) When penetrating the slot (62), the placement platform (6) disengages from the elastic telescopic member (5), and the drive assembly (4) can drive the insert (323) to rotate around the axis of the pressing ring (322). The lifting member (321) and the drive assembly (4) are both connected to the optical detection device (31) via signals. Multiple sliding grooves (22) are provided on the annular seat (21). The sliding grooves (22) are opened along the radial direction of the annular seat (21). The elastic telescopic member (5) is slidably disposed in the sliding groove (22). The end of the elastic telescopic member (5) away from the center of the annular seat (21) is a V-shaped block. The drive assembly (4) Includes a drive motor (41), a drive ring (42), and drive blocks (43) fixedly mounted on the drive ring (42). The drive motor (41) is mounted on the base (2), and the drive ring (42) is rotatably mounted on the base (2). Multiple drive blocks (43) are provided, and each drive block (43) corresponds to a V-shaped block. Multiple protrusions (44) penetrating the annular seat (21) are provided at the bottom of the drive ring (42). A connecting ring (45) is installed at the output end of the drive motor (41). Multiple outer push blocks (46) are fixedly provided on the outer ring of the connecting ring (45). The outer push blocks (46) and the protrusions (44) are connected to each other. One-to-one correspondence and contact; the elastic telescopic component (5) includes a first end (51), a second end (52) and a compression spring (53). The first end (51) is far from the center of the annular seat (21), and the second end (52) is close to the center of the annular seat (21). The first end (51) and the second end (52) are both slidably disposed in the slide groove (22). The compression spring (53) is installed between the first end (51) and the second end (52). One end of the compression spring (53) is connected to the first end (51), and the other end is connected to the second end (52). The placement platform (6) is installed on the second end (52).The connector (7) includes a connecting groove (71) and an elastic connecting block (72). The elastic connecting block (72) includes a block (721) and a connecting spring (722). The block (721) cooperates with the connecting groove (71). The block (721) is located below the slot (62). A wedge-shaped groove (723) is provided on the upper end face of the block (721). When the connecting spring (722) is at its original length, the wedge-shaped groove (723) communicates with the slot (62). When the insert (323) penetrates into the wedge-shaped groove (723), the connecting spring (722) is compressed, and the insert (323) abuts against the wedge-shaped groove (723).

2. The multi-station optical lens centering device according to claim 1, characterized in that, A receiving groove (23) is provided in the first end (51), and a reset spring (24) is provided in the receiving groove (23). One end of the reset spring (24) is connected to the inner wall of the receiving groove (23), and the other end is connected to the annular seat (21).

3. The multi-station optical lens centering device according to claim 1, characterized in that, The placement platform (6) has a ladder (63) on one side near the center of the ring seat (21). The ladder (63) has a horizontal surface and a vertical surface. The horizontal surface of the ladder (63) is used to place the lens. The vertical surface of the ladder (63) has a clamping head (64) with a ball bearing.

4. The multi-station optical lens centering device according to claim 1, characterized in that, The elastic telescopic component (5) has a horizontal groove (54) in the horizontal direction, and a horizontal block (65) in the horizontal direction is fixedly installed on the placement platform (6). The horizontal block (65) is slidably installed on the horizontal groove (54), and a chamfer is provided on the horizontal block (65).

5. The multi-station optical lens centering device according to any one of claims 1-4, characterized in that, The lifting component (321) is an electric telescopic rod. The lifting component (321) is provided with at least two sets. Each set of electric telescopic rods is hinged to the pressing ring (322). The upper end of all electric telescopic rods is connected to the same rotating ring, which is rotatably mounted on the base (2).

6. The multi-station optical lens centering device according to claim 1, characterized in that, The inner ring of the connecting ring (45) is provided with multiple inner push blocks (47), and the inner push blocks (47) correspond one-to-one with the insert blocks (323).

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