A laser measuring instrument for optical lens thickness detection

Abstract

The application discloses a kind of laser measuring instruments for optical lens thickness detection, it is related to optical lens technical field, the present application, including base, the upper surface of the base is fixedly connected with control cabinet, the top front side of the control cabinet is rotatably connected with electric telescopic rod, the front side free end of the electric telescopic rod is fixedly connected with rotary plate, the bottom front side of the control cabinet is rotatably connected with electric screw, the front side of the rotary plate is provided with laser receiver, the front side of the rotary plate is provided with laser emitter, optical lens is emitted by laser emitter beam, laser receiver is received target wavelength laser and demodulates signal, signal transmission is carried out to control cabinet after processing, to accurately detect lens thickness, clamping block is moved forward by rotary shaft and laser receiver and laser emitter, it is convenient to detect lens edge thickness, and electric telescopic rod can control detection distance, it is convenient to detect different parts.

Description

Technical Field

[0001] This invention belongs to the field of optical lenses, specifically relating to a laser measuring instrument for measuring the thickness of optical lenses. Background Technology

[0002] It is a non-contact testing instrument that uses laser triangulation or confocal principle to quickly calculate the thickness of a lens by emitting a laser beam to the lens surface and receiving the reflected light. It is suitable for spherical and aspherical lenses and features high precision, high efficiency, and non-destructive testing. It is widely used in the production and quality control of optical components.

[0003] Patent CN218349415U discloses a non-contact laser outer diameter measuring instrument. This patent includes a laser measuring component for projecting a laser beam onto the object being measured and calculating the range of the beam blocked by the object. The laser measuring component includes a horizontally opposed laser emitter and a laser receiver, and a vertical lifting mechanism for supporting the object between the laser emitter and receiver. The vertical lifting mechanism includes a lifting cylinder and a support plate driven by the lifting cylinder for lifting. Compared to the conventional method of measuring the outer diameter of optical lenses using a micrometer, this device uses a laser measuring component to measure the outer diameter of the optical lens. Non-contact, non-destructive testing avoids impacts and scratches to optical lenses. Combined with a vertical lifting mechanism, it can be adjusted according to the thickness of different optical lenses, offering greater versatility and significantly improved measurement speed. Its simple structure and economic efficiency further ensure the device's practicality. However, while this patent solves the aforementioned problems, it still suffers from inconvenient adjustment, difficulty adapting to curved surfaces and different parts of the lens, cumbersome disassembly and assembly, difficult calibration and repair, laser divergence, low detection accuracy, and inability to perform flexible multi-directional testing. Therefore, a laser measuring instrument for optical lens thickness measurement is proposed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a laser measuring instrument for optical lens thickness detection, which solves the problems of inconvenient adjustment, difficulty in adapting to curved surfaces and different parts of the lens, cumbersome disassembly and assembly, difficult calibration and repair, easy laser divergence, low detection accuracy, and inability to flexibly detect in multiple directions in the existing technology.

[0005] To achieve the above objectives, the present invention provides a laser measuring instrument for detecting the thickness of optical lenses, comprising: A base, on the upper surface of which a control cabinet is fixedly connected, an electric telescopic rod is rotatably connected to the top front side of the control cabinet, a rotating plate is fixedly connected to the free end of the front side of the electric telescopic rod, an electric lead screw is rotatably connected to the bottom front side of the control cabinet, a laser receiver is provided on the front side of the rotating plate, and a laser emitter is provided on the front side of the rotating plate. A light transmission adjustment device is installed on the front side of the control cabinet. The light transmission adjustment device is used to adjust the angle and distance of the laser receiver and the laser emitter in all directions. An automatic positioning device is disposed above the base and is used to quickly fix the lens when detecting it from different angles.

[0006] In one possible implementation, the rotating plate includes: A bracket is fixedly connected to the front side of the control cabinet, and an inclined plate is fixedly connected to the lower surface of the bracket. A movable shaft is threadedly connected to the circumferential surface of the electric lead screw; A linear motor is fixedly connected to the front side of the rotary plate, and a movable base is fixedly connected to the front moving end of the linear motor.

[0007] In one possible implementation, the rotary plate further includes: The rail is fixedly connected to the front side of the movable seat, and the inner surface of the rail is engaged with a locking block. A rotating shaft, which is fixedly connected to the front end of the locking block; The insertion rod is slidably connected to the inner surface of the top of the guide rail, and a pull shaft is fixedly connected to the top end of the insertion rod.

[0008] In one possible implementation, the front end of the electric lead screw is rotatably connected to the inner surface of the front side of the bracket, the bottom end of the inclined plate is fixedly connected to the front side of the control cabinet, the rear side of the locking block abuts against the front side of the moving seat, the front side of the rotating shaft is hinged to the side surface of the laser receiver, the front side of the rotating shaft is hinged to the side surface of the laser emitter, the insert rod is engaged with the inner surface of the locking block, and a spring is provided between the lower surface of the pull shaft and the upper surface of the rail.

[0009] In one possible implementation, the light transmittance adjustment device includes: A support rod is fixedly connected to the upper surface of the base, and a retaining seat is fixedly connected to the top end of the support rod; A sliding groove is formed on the side of the card holder near the electric lead screw, and a sliding protrusion is slidably connected to the inner surface of the sliding groove.

[0010] In one possible implementation, the light transmittance adjustment device further includes: A testing platform, which is fixedly connected to the side of the sliding protrusion near the electric lead screw; A support plate is fixedly connected to the side of the card holder near the electric lead screw; The T-shaped push block is fixedly connected to the top end of the circumferential surface of the movable shaft; An L-shaped connecting plate is fixedly connected to the lower surface of the testing table, and a convex shaft is fixedly connected to the front side of the L-shaped connecting plate. An edge clamp is slidably connected to the upper surface of the card holder.

[0011] In one possible implementation, the two sides of the testing platform and the side of the clamp near the electric lead screw are slidably connected, the lower surface of the testing platform and the upper surface of the support plate are slidably connected, the top of the T-shaped push block and the inner surface of the rear end of the L-shaped connecting plate are engaged, and the edge clamp abuts against the two sides of the testing platform.

[0012] In one possible implementation, the automatic positioning device includes: A limiting plate is fixedly connected to the upper surface of the card seat, and a spring telescopic rod is fixedly connected to the side of the limiting plate away from the edge clamp; The slide block, with the free end of the slide block spring telescopic rod away from the limiting plate; The guide rod is fixedly connected to the side of the slide block near the limiting plate.

[0013] In one possible implementation, the automatic positioning device further includes: A slide rail is fixedly connected to the side of the card holder away from the electric lead screw; A sleeve is fixedly connected to the front side of the slide rail, and a connecting plate is fixedly connected to the side of the sleeve's circumference near the card seat. A positioning rod is slidably connected to the inner surface of the sleeve, and an abutment plate is fixedly connected to the front end of the positioning rod; A push rod, which is engaged with the inner surface of a cam shaft.

[0014] In one possible implementation, the limiting plate and the edge clamp abut against each other on the side away from the detection table, the guide rod and the edge clamp are fixedly connected on the side away from the detection table, the slide block and the inner surface of the slide rail are slidably connected, the connecting plate and the clamp are fixedly connected on the side near the sleeve, a spring is provided between the rear side of the abutting plate and the front side of the sleeve, the positioning rod slides through the front side of the slide rail and into the inner side of the slide rail, and the rear end of the positioning rod is engaged with the bottom inner surface of the slide block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The laser emitter emits a beam of light onto the optical lens. The laser receiver receives the laser light of the target wavelength, demodulates the signal, and transmits the processed signal to the control cabinet, thereby accurately detecting the lens thickness. The locking block moves the laser receiver and laser emitter forward via a rotating shaft, facilitating the detection of the lens edge thickness. The electric telescopic rod can control the detection distance, facilitating the detection of different parts. The linear motor drives the moving base to move relative to each other. Through the locking rail, locking block, and rotating shaft, the laser receiver and laser emitter move relative to each other, thereby quickly adjusting the distance between them and avoiding laser divergence that reduces accuracy. The rotating shaft can also be used to adjust the angle, allowing the device to precisely fit the curved surface of the lens, improving applicability. Pushing the locking block out of the locking rail allows the laser receiver and laser emitter to be disassembled for calibration and repair, improving convenience. Conversely, inserting the locking rod into the locking block locks the device, making installation easier. The rotating plate rotates the laser receiver and laser emitter in a circular motion, facilitating the detection of lens thickness in multiple directions, such as radial and axial directions.

[0016] 2. The inspection platform is located on the support rod and the clamp to increase the inspection height and increase the distance between the lens and the base. At this time, radial inspection of the lens can be performed without affecting the rotation of the rotating plate. Pushing the inspection platform forward, and then pushing the edge clamps on both sides closer together to clamp the edge of the lens, the lens is unobstructed on the top and bottom sides, and axial inspection can be performed, which improves the inspection diversity. During the process of rotating the rotating plate from horizontal to vertical, the L-shaped connecting plate drives the inspection platform and the sliding protrusion to slide forward automatically inside the clamp and the slide groove and be pulled away from the bottom of the lens, which improves the automation effect and promotes the ease of use of the device.

[0017] 3. When the inspection stage moves forward and is pulled away from the bottom of the lens, the edge clamp loses its limiting position. The slide moves the guide rod and the edge clamp closer to the lens. When the edge clamp is in contact with the edge of the lens, it clamps it, fixing the lens in axial light transmission. This improves the stability during omnidirectional inspection and ensures inspection accuracy. To retract the inspection stage, the slide is reset, and the push rod moves backward, causing the contact plate to lose its limiting position. The contact plate moves backward under the spring's reset action, driving the positioning rod to insert into the slide and lock it at the end of the slide rail away from the holder. No manual control is required. Then, the inspection stage is pushed back into the holder, facilitating subsequent lens inspection and improving the ease of use of the device. Attached Figure Description

[0018] Figure 1 A perspective view of the front side of the device provided in the embodiments of this application; Figure 2 A perspective half-sectional view of the front side of the movable seat provided in the embodiments of this application; Figure 3 Provided for the embodiments of this application Figure 2 Enlarged view of A in the middle; Figure 4A perspective view of the side and bottom surface of the light transmission adjustment device provided in the embodiments of this application; Figure 5 Provided for the embodiments of this application Figure 4 Enlarged view of B in the middle; Figure 6 Provided for the embodiments of this application Figure 4 Enlarged view of C; Figure 7 A three-dimensional half-sectional view of the front side of the automatic positioning device provided in the embodiments of this application; Figure 8 Provided for the embodiments of this application Figure 7 Enlarged view of D; Figure 9 Provided for the embodiments of this application Figure 7 A magnified view of E in the middle.

[0019] Explanation of key figure labels: 1. Base; 2. Control cabinet; 3. Electric telescopic rod; 4. Rotary plate; 5. Electric lead screw; 6. Laser receiver; 7. Laser emitter; 8. Light transmission adjustment device; 9. Automatic positioning device; 10. Bracket; 11. Inclined plate; 12. Moving shaft; 13. Linear motor; 14. Moving seat; 15. Rail; 16. Locking block; 17. Rotating shaft; 18. Insert rod; 19. Pull shaft; 81. Support rod; 82. Locking seat; 83. Slide groove; 84. Support plate; 85. Detection table; 86. Sliding protrusion; 87. T-shaped push block; 88. L-shaped connecting plate; 89. Edge clamp; 810. Protruding shaft; 91. Limiting plate; 92. Spring telescopic rod; 93. Slide seat; 94. Guide rod; 95. Slide rail; 96. Sleeve; 97. Connecting plate; 98. Positioning rod; 99. Contact plate; 910. Push rod. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figure 1-9As shown, one embodiment of the present invention is: a laser measuring instrument for detecting the thickness of optical lenses, including a base 1, a control cabinet 2 fixedly connected to the upper surface of the base 1, an electric telescopic rod 3 rotatably connected to the top front side of the control cabinet 2, a rotating plate 4 fixedly connected to the free end of the front side of the electric telescopic rod 3, an electric lead screw 5 rotatably connected to the bottom front side of the control cabinet 2, a laser receiver 6 and a laser emitter 7 disposed on the front side of the rotating plate 4, a light transmission adjustment device 8 disposed on the front side of the control cabinet 2, the light transmission adjustment device 8 being used for omnidirectional adjustment of the angle and distance of the laser receiver 6 and the laser emitter 7, and an automatic positioning device 9 disposed above the base 1, the automatic positioning device 9 being used for adjusting the lens in different orientations. During testing, the lens is quickly fixed in place. The laser emitter 7 emits a beam of light onto the optical lens. The laser receiver 6 receives the laser of the target wavelength, demodulates the signal, and transmits the processed signal to the control cabinet 2, thereby accurately detecting the lens thickness. The locking block 16 moves the laser receiver 6 and the laser emitter 7 forward via the rotating shaft 17, facilitating the detection of the lens edge thickness. The rotating plate 4 includes a bracket 10, which is fixedly connected to the front side of the control cabinet 2. An inclined plate 11 is fixedly connected to the lower surface of the bracket 10. The moving shaft 12 is threadedly connected to the circumferential surface of the electric lead screw 5. The linear motor 13 is fixedly connected to the front side of the rotating plate 4. A moving seat 14 is fixedly connected to the front moving end of the linear motor 13. The electric telescopic rod 3 can control the detection distance, facilitating... For different parts, the linear motor 13 drives the moving base 14 to move relative to each other. This, along with the rail 15, the locking block 16, and the rotating shaft 17, drives the laser receiver 6 and the laser emitter 7 to move relative to each other, thus quickly adjusting the distance between them and preventing laser divergence that could reduce accuracy. The rotating plate 4 also includes the rail 15, which is fixedly connected to the front side of the moving base 14. The locking block 16 is engaged with the inner surface of the rail 15. The rotating shaft 17 is fixedly connected to the front end of the locking block 16. The insertion rod 18 is slidably connected to the top inner surface of the rail 15. A pull shaft 19 is fixedly connected to the top of the insertion rod 18. The angle can be adjusted by rotating the shaft 17, allowing the device to precisely fit the curved surface of the lens, improving its applicability. Pushing the locking block 16 away from the rail 15 allows the laser receiver 6 and... The laser emitter 7 is disassembled for easy calibration and repair, improving convenience. The front end of the electric lead screw 5 is rotatably connected to the inner surface of the front side of the bracket 10. The bottom end of the inclined plate 11 is fixedly connected to the front side of the control cabinet 2. The rear side of the locking block 16 abuts against the front side of the moving seat 14. The front side of the rotating shaft 17 is hinged to the side surface of the laser receiver 6 and the side surface of the laser emitter 7. The insertion rod 18 is locked to the inner surface of the locking block 16. A spring is provided between the lower surface of the pull shaft 19 and the upper surface of the rail 15. Inserting the insertion rod 18 into the locking block 16 and locking it makes installation more convenient. The rotation of the rotating plate 4 causes the laser receiver 6 and the laser emitter 7 to rotate circumferentially, which facilitates thickness detection of the lens in multiple directions such as radial and axial directions.

[0022] Working principle: The laser emitter 7 is activated, emitting a beam of light onto the optical lens on the base 1. After the beam passes through the other side of the lens, the laser receiver 6 is activated. The laser receiver 6 receives the laser of the target wavelength, demodulates the laser signal, and then transmits the processed signal to the control cabinet 2. The control cabinet 2 displays the optical lens data on its back panel, thus accurately detecting the lens thickness. The electric telescopic rod 3 is activated, extending its free end forward and driving the rotating plate 4 forward. The rotating plate 4 drives the linear motor 13 and the moving seats 14 on both sides forward. The moving seats 14 drive the rail 15 and the locking block 16 forward. The locking block 16 then moves forward via the rotating shaft 17. The laser receiver 6 and laser emitter 7 move forward. When they are positioned on either side of the lens, the edge thickness of the lens can be detected. The electric telescopic rod 3 moves the device back and forth, controlling the detection distance and facilitating the detection of different parts of the lens, resulting in more comprehensive and accurate data. The linear motor 13 is activated, driving the left and right movable seats 14 to move relative to each other. The movable seats 14 then move the guide rail 15 left and right. The guide rail 15, through the locking block 16 and the rotating shaft 17, moves the laser receiver 6 and laser emitter 7 relative to each other, thus quickly adjusting the distance between them. This facilitates the detection of lenses with different diameters and avoids laser divergence. This leads to a decrease in detection accuracy. However, the angles of the laser receiver 6 and laser emitter 7 can be adjusted by rotating the shaft 17, allowing the device to precisely fit the curved surface of the lens, facilitating the detection of lenses with different curvatures and improving the device's applicability. When calibration or repair is required, pulling the shaft 19 upwards causes the insertion rod 18 to slide upwards within the rail 15 and disengage from the locking block 16. This pushes the locking block 16 to slide away from the rail 15. After the locking block 16 disengages from the rail 15, the rotating shaft 17 causes the laser receiver 6 and laser emitter 7 to be removed from the rail 15, making calibration and repair more convenient and improving the device's ease of use. Conversely, pulling the laser... The receiver 6 and laser emitter 7 are inserted into the rail 15 via the rotating shaft 17 and the locking block 16. Then the pull shaft 19 is released. At this time, the pull shaft 19 moves downward under the influence of the elastic reset of the spring and drives the insertion rod 18 to insert downward into the locking block 16 and lock it with the rail 15, making the installation of the device more convenient. The electric screw 5 is started and rotates between the control cabinet 2 and the bracket 10. When the electric screw 5 rotates, it drives the electric telescopic rod 3 to rotate through the synchronous belt. The electric telescopic rod 3 then drives the rotating plate 4 to rotate. The rotating plate 4 then drives the laser receiver 6 and laser emitter 7 at both ends to rotate in a circle, thereby changing the beam angle and facilitating the thickness detection of the lens in multiple directions such as radial and axial directions.

[0023] like Figure 1-9As shown, in another embodiment of the present invention based on the above embodiments, the light transmission adjustment device 8 includes a support rod 81, which is fixedly connected to the upper surface of the base 1. A retaining seat 82 is fixedly connected to the top of the support rod 81. A sliding groove 83 is formed on the side of the retaining seat 82 near the electric lead screw 5. A sliding protrusion 86 is slidably connected to the inner surface of the sliding groove 83. A detection stage 85 is located on the support rod 81 and the retaining seat 82 to increase the detection height and increase the distance between the lens and the base 1. At this time, radial detection of the lens can be performed without affecting the rotation of the rotating plate 4. The light transmission adjustment device 8 also includes a detection stage 85, which is fixedly connected to the side of the sliding protrusion 86 near the electric lead screw 5. A support plate 84 is fixedly connected to the side of the retaining seat 82 near the electric lead screw 5. A T-shaped push block 87 is fixedly connected to the top of the circumferential surface of the moving shaft 12. An L-shaped connecting plate 88 is fixedly connected to the lower surface of the detection stage 85. The front side of the L-shaped connecting plate 88 is fixedly connected to the convex shaft 810. The edge clamp 89 is slidably connected to the upper surface of the card seat 82. The detection table 85 is pushed forward, and then the edge clamps 89 on both sides are pushed closer to each other to clamp the edge of the lens. At this time, the upper and lower sides of the lens are unobstructed, and axial detection can be performed on it, which improves the detection diversity. The two sides of the detection table 85 and the side of the card seat 82 near the electric lead screw 5 are slidably connected. The lower surface of the detection table 85 and the upper surface of the support plate 84 are slidably connected. The top of the T-shaped push block 87 is engaged with the inner surface of the rear end of the L-shaped connecting plate 88. The edge clamp 89 and the two sides of the detection table 85 abut against each other. During the process of the rotating plate 4 rotating from horizontal to vertical, the L-shaped connecting plate 88 drives the detection table 85 and the sliding protrusion 86 to slide forward automatically inside the card seat 82 and the slide groove 83 and be pulled away from the bottom of the lens, which improves the automation effect and promotes the ease of use of the device.

[0024] Working principle: The lens is placed on the inspection stage 85, which is located on the support rod 81 and the clamping seat 82, thereby increasing the inspection height and the distance between the lens and the base 1. This allows for radial inspection of the lens without affecting the rotation of the rotating plate 4. When axial inspection of the lens is required, the inspection stage 85 is pushed forward. The inspection stage 85 slides forward within the slide groove 83 via the sliding protrusion 86, causing the inspection stage 85 to move forward horizontally. Then, the edge clamps 89 on both sides are pushed closer together, clamping the edge of the lens. Since there are no obstructions on the top and bottom sides of the lens, the lens can be inspected. It can perform axial detection, which improves the diversity of detection and further promotes the comprehensiveness of detection data. During the process of rotating plate 4 from horizontal to vertical, electric lead screw 5 drives moving shaft 12 forward through spiral groove. Moving shaft 12 drives T-shaped push block 87 forward. T-shaped push block 87 drives the rear end of L-shaped connecting plate 88 forward. L-shaped connecting plate 88 then drives detection table 85 and sliding protrusion 86 to slide forward automatically inside the card seat 82 and slide groove 83 and be pulled out from the bottom of lens, which improves the automation effect and promotes the ease of use of the device.

[0025] like Figure 1-9 As shown, in another embodiment of the present invention, based on the above embodiments, the automatic positioning device 9 includes a limiting plate 91, which is fixedly connected to the upper surface of the card holder 82. A spring telescopic rod 92 is fixedly connected to the side of the limiting plate 91 away from the edge clamp 89. The free end of the spring telescopic rod 92 on the side of the slide 93 away from the limiting plate 91 is connected to a guide rod 94, which is fixedly connected to the side of the slide 93 near the limiting plate 91. When the detection stage 85 moves forward and is pulled away from the bottom of the lens, the edge clamp 89 loses the detection stage. The limit switch 85, slide 93 drives guide rod 94 and edge clamp 89 closer to the lens. When edge clamp 89 is in contact with the edge of the lens, it clamps it, fixing the lens in axial light transmission, improving stability during omnidirectional detection and ensuring detection accuracy. The automatic positioning device 9 also includes slide rail 95, which is fixedly connected to the side of the locator 82 away from the electric lead screw 5. Sleeve 96 is fixedly connected to the front side of slide rail 95, and connecting plate 97 is fixedly connected to the circumferential surface of sleeve 96 near the locator 82. The positioning rod 98 is slidably connected to the inner surface of the sleeve 96. A contact plate 99 is fixedly connected to the front end of the positioning rod 98. The push rod 910 is engaged with the inner surface of the convex shaft 810. The limiting plate 91 and the edge clamp 89 abut against each other on the side away from the detection table 85. The guide rod 94 and the edge clamp 89 are fixedly connected on the side away from the detection table 85. The slide block 93 and the inner surface of the slide rail 95 are slidably connected. The connecting plate 97 and the clamp 82 are fixedly connected on the side near the sleeve 96. A space is provided between the rear side of the contact plate 99 and the front side of the sleeve 96. With a spring, the positioning rod 98 slides from the front side of the slide rail 95 and penetrates into the inner side of the slide rail 95. The rear end of the positioning rod 98 is engaged with the inner surface of the bottom of the slide block 93. The push rod 910 moves backward, causing the contact plate 99 to lose its limit. The contact plate 99 moves backward under the reset action of the spring and drives the positioning rod 98 to insert into the slide block 93, locking it at the end of the slide rail 95 away from the card holder 82. No manual control is required. Then, the detection table 85 is pushed back into the card holder 82, which facilitates the subsequent detection of lenses and improves the ease of use of the device.

[0026] Working principle: When the inspection stage 85 moves forward and is pulled away from the bottom of the lens, the edge clamp 89 loses the limit of the inspection stage 85. At this time, the spring telescopic rod 92, affected by its internal spring, retracts inward at its free end and pulls the slide 93 to slide within the slide rail 95 and approach the clamp 82. When the slide 93 approaches the clamp 82, it drives the guide rod 94 to approach the lens. The guide rod 94 then drives the edge clamp 89 to approach the lens. When the edge clamp 89 is in contact with the edge of the lens, it clamps it, thereby fixing the lens while allowing axial light transmission, improving the stability during omnidirectional inspection and ensuring inspection accuracy. When the L-shaped connecting plate 88 moves forward, it drives the convex shaft 810 to move forward. The convex shaft 810 drives the push rod 910 to move forward. When the push rod 910 contacts the contact plate 99, it pushes the contact plate 99 forward. When the contact plate 99 moves, the positioning rod 98 slides forward within the sleeve 96 and is pulled away from the slide block 93, causing the slide block 93 to lose its limit. At this time, the slide block 93 slides closer to the card seat 82 under the influence of the spring telescopic rod 92. To retract the detection table 85, the slide block 93 is reset, and at this time, the push rod 910 moves backward, causing the contact plate 99 to lose its limit. The contact plate 99 moves backward and resets under the influence of the elastic reset action of the spring, and drives the positioning rod 98 to slide backward within the sleeve 96, thereby inserting it into the slide block 93 and locking it at the end of the slide rail 95 away from the card seat 82. This simultaneously locks the left and right edge clamps 89 without manual control. At this time, the detection table 85 is pushed back into the card seat 82, restoring the device to its original state, which facilitates subsequent lens testing and improves the ease of use of the device.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser measuring instrument for detecting the thickness of optical lenses, characterized in that, include: A base (1) is fixedly connected to a control cabinet (2) on its upper surface. An electric telescopic rod (3) is rotatably connected to the front side of the top of the control cabinet (2). A rotating plate (4) is fixedly connected to the free end of the front side of the electric telescopic rod (3). An electric lead screw (5) is rotatably connected to the front side of the bottom of the control cabinet (2). A laser receiver (6) is provided on the front side of the rotating plate (4). A laser emitter (7) is provided on the front side of the rotating plate (4). A synchronous belt is provided on the surface of the electric telescopic rod (3) and the electric lead screw (5). Light transmission adjustment device (8), the light transmission adjustment device (8) is set on the front side of the control cabinet (2), the light transmission adjustment device (8) is used to adjust the angle and distance of the laser receiver (6) and the laser emitter (7) in all directions; Automatic positioning device (9) is disposed above base (1) and is used to quickly fix the lens when it is being tested in different orientations.

2. The laser measuring instrument for detecting the thickness of optical lenses according to claim 1, characterized in that, The rotating plate (4) includes: A bracket (10) is fixedly connected to the front side of the control cabinet (2), and an inclined plate (11) is fixedly connected to the lower surface of the bracket (10). The movable shaft (12) is threadedly connected to the circumferential surface of the electric lead screw (5); A linear motor (13) is fixedly connected to the front side of the rotary plate (4), and a movable seat (14) is fixedly connected to the front movable end of the linear motor (13).

3. The laser measuring instrument for detecting the thickness of optical lenses according to claim 2, characterized in that, The rotary plate (4) also includes: The rail (15) is fixedly connected to the front side of the movable seat (14), and the inner surface of the rail (15) is fitted with a locking block (16). A rotating shaft (17) is fixedly connected to the front end of a locking block (16); Insert rod (18), which is slidably connected to the inner surface of the top of the rail (15), and the top end of the insert rod (18) is fixedly connected to a pull shaft (19).

4. The laser measuring instrument for detecting the thickness of optical lenses according to claim 3, characterized in that, The front end of the electric lead screw (5) is rotatably connected to the inner surface of the front side of the bracket (10), the bottom end of the inclined plate (11) is fixedly connected to the front side of the control cabinet (2), the rear side of the locking block (16) abuts against the front side of the moving seat (14), the front side of the rotating shaft (17) is hinged to the side surface of the laser receiver (6), the front side of the rotating shaft (17) is hinged to the side surface of the laser emitter (7), the insert rod (18) is engaged with the inner surface of the locking block (16), and a spring is provided between the lower surface of the pull shaft (19) and the upper surface of the rail (15).

5. The laser measuring instrument for detecting the thickness of optical lenses according to claim 4, characterized in that, The light transmission adjustment device (8) includes: Support rod (81), the support rod (81) is fixedly connected to the upper surface of the base (1), and the top end of the support rod (81) is fixedly connected to a card seat (82). The slide (83) is located on the side of the card holder (82) near the electric lead screw (5), and the inner surface of the slide (83) is slidably connected with a sliding protrusion (86).

6. The laser measuring instrument for optical lens thickness detection according to claim 5, characterized in that, The light transmission adjustment device (8) also includes: The testing table (85) is fixedly connected to the sliding protrusion (86) on the side near the electric lead screw (5); Support plate (84), said support plate (84) is fixedly connected to the side of the card seat (82) near the electric lead screw (5); T-shaped push block (87), the T-shaped push block (87) is fixedly connected to the top of the circumferential surface of the moving shaft (12); L-shaped connecting plate (88), the L-shaped connecting plate (88) is fixedly connected to the lower surface of the detection table (85), and the front side of the L-shaped connecting plate (88) is fixedly connected to a convex shaft (810). Edge clamp (89) is slidably connected to the upper surface of the card holder (82).

7. The laser measuring instrument for detecting the thickness of optical lenses according to claim 6, characterized in that, The two sides of the testing platform (85) and the side of the card holder (82) near the electric lead screw (5) are slidably connected. The lower surface of the testing platform (85) and the upper surface of the support plate (84) are slidably connected. The top of the T-shaped push block (87) and the inner surface of the rear end of the L-shaped connecting plate (88) are engaged. The edge clamp (89) and the two sides of the testing platform (85) abut against each other.

8. The laser measuring instrument for detecting the thickness of optical lenses according to claim 7, characterized in that, The automatic positioning device (9) includes: A limiting plate (91) is fixedly connected to the upper surface of the card seat (82), and a spring telescopic rod (92) is fixedly connected to the side of the limiting plate (91) away from the edge clamp (89). Slide (93), the free end of the spring telescopic rod (92) of the slide (93) away from the limiting plate (91); Guide rod (94), which is fixedly connected to the side of slide (93) near limit plate (91).

9. A laser measuring instrument for detecting the thickness of optical lenses according to claim 8, characterized in that, The automatic positioning device (9) further includes: The slide rail (95) is fixedly connected to the side of the card holder (82) away from the electric lead screw (5); Sleeve (96), the sleeve (96) is fixedly connected to the front side of the slide rail (95), and a connecting plate (97) is fixedly connected to the circumferential surface of the sleeve (96) near the card seat (82). Positioning rod (98), which is slidably connected to the inner surface of sleeve (96), and the front end of positioning rod (98) is fixedly connected to a contact plate (99). Push rod (910), which is engaged with the inner surface of cam shaft (810).

10. A laser measuring instrument for detecting the thickness of an optical lens according to claim 9, characterized in that, The limiting plate (91) and the edge clamp (89) abut against each other on the side away from the detection table (85). The guide rod (94) and the edge clamp (89) are fixedly connected on the side away from the detection table (85). The slide block (93) and the inner surface of the slide rail (95) are slidably connected. The connecting plate (97) and the card seat (82) are fixedly connected on the side near the sleeve (96). A spring is provided between the rear side of the abutting plate (99) and the front side of the sleeve (96). The positioning rod (98) slides through the front side of the slide rail (95) and enters the inner side of the slide rail (95). The rear end of the positioning rod (98) is engaged with the bottom inner surface of the slide block (93).

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