Servo control tool for high-precision installation of oversized lens

Abstract

The utility model relates to the technical field of optical element assembly, and provides a servo control tool for high-precision installation of a super-large lens, which comprises a base, the top end of the base is fixedly connected with a lens seat support, the top end of the lens seat support is movably connected with a lens seat, the lens seat and the lens seat support are not limited in the horizontal direction, and the lens seat support is movably connected with the lens seat. A lens is installed in the lens base, and a servo actuator is fixedly installed in the middle of the top end of the base. According to the utility model, the descending speed of the lens is accurately controlled through the cooperation of the servo motor and the ball screw, the bearing capacity is stronger, the lens can be ensured not to collide with the lens seat due to too fast descending in the self-centering process, the surface of the lens is prevented from being damaged and deformed, and the screw nut on the ball screw can be ensured to run along a straight line through the cooperation of the linear guide rail and the guide slide block; and the assembly precision and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of optical component assembly technology, and in particular to a servo control fixture for high-precision installation of ultra-large lenses. Background Technology

[0002] Oversized lenses refer to lenses with a diameter exceeding 400mm. They possess a powerful ability to bring objects closer and offer unique visual effects, making them irreplaceable in fields such as wildlife and sports.

[0003] In optical systems, the installation accuracy of ultra-large aperture lenses directly determines the system's imaging quality. However, traditional clamping devices are mainly designed for small and medium-sized lenses, and they face significant technical bottlenecks when dealing with the assembly requirements of ultra-large lenses: First, insufficient support stability. Since ultra-large lenses can weigh hundreds of kilograms, the load-bearing capacity and rigidity of traditional mechanical structures are difficult to match, easily leading to lens slippage or structural damage. Second, defects in stress control. Conventional rigid compression fixing methods are prone to uneven stress distribution on the contact surface, which can easily cause lens deformation and affect optical performance. More importantly, ultra-large lenses require high positioning accuracy, and the positioning accuracy of traditional tooling is often insufficient to meet the high-precision assembly and adjustment requirements. Utility Model Content

[0004] The purpose of this invention is to address the problem in existing optical systems where the installation accuracy of ultra-large aperture lenses directly determines the system's imaging quality. However, traditional clamping devices are primarily designed for small and medium-sized lenses, and face significant technical bottlenecks when assembling ultra-large lenses: First, insufficient support stability. Since ultra-large lenses can weigh hundreds of kilograms, the load-bearing capacity and rigidity of traditional mechanical structures are difficult to match, easily leading to lens slippage or structural damage. Second, stress control deficiencies. Conventional rigid compression fixing methods easily cause uneven stress distribution on the contact surface, leading to lens deformation and affecting optical performance. More importantly, ultra-large lenses require high positioning accuracy, which traditional tooling often cannot meet.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a servo control fixture for high-precision installation of ultra-large lenses, comprising a base, a lens mount bracket fixedly connected to the top of the base, a lens mount movably connected to the top of the lens mount bracket, the lens mount and the lens mount bracket being not horizontally limited, a lens being installed inside the lens mount, and a servo actuator fixedly installed in the middle of the top of the base; the servo actuator includes a bracket, a flange fixedly installed on the top of the bracket, an actuator housing fixedly installed in the middle of the flange, a ball screw rotatably connected inside the actuator housing, a push rod fixedly connected to the top of the ball screw, a support plate fixedly connected to the top of the push rod, a servo motor provided at the lower end of the ball screw, and the output shaft of the servo motor being splinedly connected to the ball screw; the actuator... A linear guide rail is installed on one side of the device housing. A guide slider is embedded in the ball screw nut corresponding to the end of the linear guide rail. The guide slider is slidably connected to the corresponding side end of the linear guide rail. When installing the lens, the lens base is first installed on the lens base bracket. The lens base is not limited in the horizontal direction. Then, the lens is placed on the support plate. The lens is also not limited in the horizontal direction. The ball screw is driven to rotate by a servo motor, which drives the support plate to descend until the lens falls smoothly into the lens base. The servo motor precisely controls the descent speed of the lens through the ball screw, resulting in a stronger load-bearing capacity. This ensures that the lens will not collide with the lens base due to excessive descent during self-alignment, avoiding damage and deformation to the lens surface. Furthermore, the linear guide rail and guide slider ensure that the ball screw nut on the ball screw runs in a straight line, improving assembly accuracy and stability.

[0006] In a preferred embodiment, a displacement sensor slider is embedded on the side of the ball screw nut away from the linear guide rail. A displacement sensor is installed inside the displacement sensor slider. The displacement sensor installed on the displacement sensor slider can be used to determine the movement distance of the push rod, which facilitates the collection of position and height information of the support plate on the push rod.

[0007] In a preferred embodiment, an external control driver is also included. The external control driver includes interface A and interface B. Within the servo actuator, the servo motor is provided with interface E and interface C, and the displacement sensor is provided with interface D. The control driver electrically connects interface C and interface D through a first cable, and the control driver electrically connects to interface E through a second cable. Interface E is a power supply interface, which functions to supply power to the servo motor. Interface C is a rotary encoder interface, which facilitates control. Interface D is a displacement sensor interface, which facilitates the collection of position and height information of the push rod.

[0008] In a preferred embodiment, the upper end of the lens mount is provided with a V-shaped inlet. The inner wall of the V-shaped inlet is a sloping structure. When the lens slowly descends under the drive of the support plate, the edge of the lens first contacts the sloping surface of the V-shaped inlet. Since the lens and the lens mount have horizontal degrees of freedom, when the lens slides in along the sloping surface of the V-shaped inlet, the lens and the lens mount can be finely adjusted in position by relying on the lens's own gravity, so that the lens gradually aligns with the axis of the lens mount, thereby achieving a self-centering function.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention uses a servo motor to drive a ball screw to rotate, which in turn lowers a support plate until the lens falls smoothly into the lens holder. The servo motor precisely controls the descent speed of the lens through the ball screw, resulting in a stronger load-bearing capacity. This ensures that the lens will not collide with the lens holder due to excessive descent during self-alignment, thus preventing damage and deformation to the lens surface. Furthermore, the linear guide rail and guide slider ensure that the screw nut on the ball screw runs in a straight line, improving assembly accuracy and stability. Attached Figure Description

[0011] Figure 1 A three-dimensional structural schematic diagram of a servo control fixture for high-precision installation of ultra-large lenses provided by this utility model;

[0012] Figure 2 A cross-sectional view of the lens mount of a servo control fixture for high-precision installation of ultra-large lenses, provided by this utility model.

[0013] Figure 3 This utility model provides a connection diagram of the control driver and servo actuator for a servo control fixture used for high-precision installation of ultra-large lenses.

[0014] Legend:

[0015] 1. Lens; 2. Lens mount; 3. Lens mount bracket; 4. Base; 5. Support plate; 6. Push rod; 7. Actuator housing; 8. Displacement sensor slider; 9. Flange; 10. Bracket; 11. Ball screw; 12. Servo motor; 13. Guide slider; 14. V-shaped inlet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a servo control fixture for high-precision installation of ultra-large lenses, including a base 4, a lens mount bracket 3 fixedly connected to the top of the base 4, a lens mount 2 movably connected to the top of the lens mount bracket 3, the lens mount 2 and the lens mount bracket 3 are not limited in the horizontal direction, a lens 1 is installed inside the lens mount 2, and a servo actuator is fixedly installed in the middle of the top of the base 4; the servo actuator includes a bracket 10, a flange 9 fixedly installed on the top of the bracket 10, an actuator housing 7 fixedly installed in the middle of the flange 9, a ball screw 11 rotatably connected inside the actuator housing 7, a push rod 6 fixedly connected to the top of the ball screw 11, a support plate 5 fixedly connected to the top of the push rod 6, a servo motor 12 provided at the lower end of the ball screw 11, the output shaft of the servo motor 12 being splinedly connected to the ball screw 11, and a linear guide rail installed on one side inside the actuator housing 7. The ball screw 11 has a guide slider 13 embedded in the linear guide rail end corresponding to the screw nut. The guide slider 13 is slidably connected to the linear guide rail on its corresponding side end. When installing the lens, the lens base 2 is first installed on the lens base bracket 3. The lens base 2 is not limited in the horizontal direction. Then the lens 1 is placed on the support plate 5. The lens 1 is also not limited in the horizontal direction. The ball screw 11 is driven to rotate by the servo motor 12, which drives the support plate 5 to descend until the lens 1 falls smoothly into the lens base. The servo motor 12 precisely controls the descent speed of the lens 1 through the ball screw 11. The load-bearing capacity is stronger, which can ensure that the lens 1 will not collide with the lens base 2 due to excessive descent during the self-alignment process, avoiding damage and deformation to the surface of the lens 1. In addition, the linear guide rail and the guide slider 13 can ensure that the screw nut on the ball screw 11 runs in a straight line, improving the assembly accuracy and stability.

[0018] like Figure 1-3 As shown, a displacement sensor slider 8 is embedded on the side of the ball screw nut away from the linear guide rail. A displacement sensor is installed inside the displacement sensor slider 8. The displacement sensor installed on the displacement sensor slider 8 can be used to determine the moving distance of the push rod 6, which is convenient for collecting and understanding the position and height information of the support plate 5 on the push rod 6.

[0019] like Figure 1-3 As shown, it also includes an external control driver, which includes interface A and interface B. Inside the servo actuator: interface E and interface C are provided on the servo motor 12, and interface D is provided on the displacement sensor. The control driver is electrically connected to interface C and interface D through a first cable, and the control driver is electrically connected to interface E through a second cable. Interface E is a power supply interface, which functions to supply power to the servo motor 12. Interface C is a rotary encoder interface, which facilitates the control of 12. Interface D is a displacement sensor interface, which facilitates the collection of position and height information of the push rod 6.

[0020] like Figure 1-3As shown, a V-shaped inlet 14 is provided at the upper end of the lens base 2. The inner wall of the V-shaped inlet is a sloping structure. When the lens 1 slowly descends under the drive of the support plate 5, the edge of the lens 1 first contacts the sloping surface of the V-shaped inlet 14. Since the lens and the lens base have horizontal degrees of freedom, when the lens slides in along the sloping surface of the V-shaped inlet, the lens 1 and the lens base 2 can be finely adjusted in position by relying on the weight of the lens 1 itself, so that the lens 1 gradually aligns with the axis of the lens base 2, thereby realizing the self-centering function.

[0021] Working principle: When installing the lens, first install the lens mount 2 on the lens mount bracket 3. The lens mount 2 is not limited in the horizontal direction. Then, place the lens 1 on the support plate 5. The lens 1 is also not limited in the horizontal direction. The servo motor 12 is started by an external control driver, which drives the ball screw 11 to rotate, causing the support plate 5 to descend. During the descent, the edge of the lens 1 first contacts the inclined surface of the V-shaped inlet 14. Since the lens and the lens mount have horizontal degrees of freedom, when the lens slides in along the inclined surface of the V-shaped inlet 14, it relies on the lens 1 itself... Under gravity, the positions of lens 1 and lens base 2 can be finely adjusted so that lens 1 gradually aligns with the axis of lens base 2, achieving self-centering function until lens 1 is stable within lens base 2, thus completing the installation of lens 1. Servo motor 12 precisely controls the descent speed of lens 1 through ball screw 11, with stronger load-bearing capacity, ensuring that lens 1 will not collide with lens base 2 due to excessive descent during self-centering, avoiding damage and deformation to the surface of lens 1. Furthermore, the linear guide rail in conjunction with guide slider 13 ensures that the screw nut on ball screw 11 runs in a straight line, improving assembly accuracy and stability.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A servo control fixture for high-precision mounting of ultra-large lenses, characterized in that, The system includes a base (4), a mirror mount bracket (3) fixedly connected to the top of the base (4), a mirror mount (2) movably connected to the top of the mirror mount bracket (3), the mirror mount (2) and the mirror mount bracket (3) are not horizontally limited, a lens (1) is installed inside the mirror mount (2), and a servo actuator is fixedly installed in the middle of the top of the base (4); the servo actuator includes a bracket (10), a flange (9) fixedly installed on the top of the bracket (10), and an actuator housing (7) fixedly installed in the middle of the flange (9), and the actuator housing (7) rotates inside the actuator housing (7). A ball screw (11) is dynamically connected. A push rod (6) is fixedly connected to the top of the ball screw (11). A support plate (5) is fixedly connected to the top of the push rod (6). A servo motor (12) is provided at the lower end of the ball screw (11). The output shaft of the servo motor (12) is splinedly connected to the ball screw (11). A linear guide rail is installed on one side inside the actuator housing (7). A guide slider (13) is embedded on the ball screw (11) at the end of the linear guide rail corresponding to the screw nut. The guide slider (13) is slidably connected to the linear guide rail at its corresponding side end.

2. The servo control fixture for high-precision mounting of ultra-large lenses according to claim 1, characterized in that: A displacement sensor slider (8) is embedded in the ball screw (11) on the side away from the linear guide rail, and a displacement sensor is installed inside the displacement sensor slider (8).

3. The servo control fixture for high-precision mounting of ultra-large lenses according to claim 1, characterized in that: It also includes an external control driver, which includes interface A and interface B. The servo actuator has interface E and interface C on the servo motor (12) and interface D on the displacement sensor. The control driver is electrically connected to interface C and interface D through a first cable and to interface E through a second cable.

4. The servo control fixture for high-precision mounting of ultra-large lenses according to claim 1, characterized in that: The upper end of the mirror base (2) is provided with a V-shaped inlet (14), and the inner wall of the V-shaped inlet (14) is a sloping structure.

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