An optical detection tool

Abstract

The application discloses an optical detection tool and relates to the technical field of new material optical product detection, which comprises a tool table and a lifting loading mechanism, a ring-shaped hole is formed in the middle of the top surface of the tool table, and the lifting loading mechanism is arranged inside a first limiting groove. The optical detection tool is characterized in that the electric telescopic rod is extended to make the center plate, the inner ring plate and the outer ring plate gradually rise to form a pagoda-shaped structure with the surface of the tool table, so that the center plate, the inner ring plate, the outer ring plate and the tool table form a stepped distribution from top to bottom. At this time, the center plate bears the center part of the bottom of the optical lens, so that the optical lens is stably lifted to leave the ring-shaped limiting groove, and at this time, the side of the optical lens is completely exposed to facilitate the U-shaped supporting plate to support and transfer the optical lens or the clamping mechanism to clamp and transfer the optical lens, thereby greatly reducing the difficulty of unloading after the optical lens is detected, and the optical detection tool is widely applicable to different material taking, unloading or transferring mechanisms.

Description

Technical Field

[0001] This invention relates to the field of new material optical product testing technology, specifically to an optical testing fixture. Background Technology

[0002] Optical components, such as modified polyurethane optical material lenses, require various tests during production and processing to ensure that the optical components are accurate enough after being put into use. The testing of optical components is often carried out by clamping and calibrating them with testing fixtures.

[0003] Existing testing fixtures typically clamp optical components by placing the optical lens in a limiting groove on the surface of the fixture and then clamping it using a clamping structure. However, for modified polyurethane optical material lenses, which are relatively thin, it is often difficult to remove them from the limiting groove after testing. Specific unloading tools, such as suction cups, are required to complete the unloading process. Other clamping and support types of unloading tools are often difficult to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed an optical inspection fixture. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an optical inspection fixture that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an optical inspection fixture, comprising a fixture table and a lifting and loading mechanism. The fixture table has an annular hole at its top center, and a first limiting groove is formed on the inner side of the annular hole. The lifting and loading mechanism is located inside the first limiting groove. The lifting and loading mechanism includes a first movable ring, an outer ring plate, a second limiting groove, a second movable ring, an inner ring plate, a third limiting groove, a third movable ring, a center plate, and an electric telescopic rod. The outer ring plate is fixed to the inner side of the first movable ring, and a second limiting groove is formed on the inner side of the outer ring plate. A second movable ring is disposed inside the second limiting groove, and an inner ring plate is fixed to the inner side of the second movable ring. A third limiting groove is formed on the inner side of the inner ring plate, and a third movable ring is disposed inside the third limiting groove. A center plate is fixed to the inner side of the third movable ring, and an electric telescopic rod is fixed to the bottom of the center plate. Optical lenses are placed on the surfaces of the outer ring plate, inner ring plate, and center plate. An optical inspection device is positioned directly above the fixture table.

[0007] Furthermore, the bottom of the electric telescopic rod is fixed to the bottom of the inner wall of the tooling table, and the vertical central axis of the electric telescopic rod coincides with the vertical central axis of the outer ring plate, the inner ring plate, and the center plate.

[0008] Furthermore, movable ball bearings are embedded on the surfaces of the outer ring plate and the inner ring plate, and a clamping and calibration mechanism is provided inside the tooling table on one side of the electric telescopic rod.

[0009] Furthermore, the clamping calibration mechanism includes an oil pipe, an electric piston push rod, and a diverter pipe. One end of the oil pipe is fitted with the electric piston push rod, and the other end of the oil pipe is connected to the diverter pipe.

[0010] Furthermore, the end of the diversion pipe away from the oil pipe is divided into four branches, and the end of each branch penetrates the top of the tooling table.

[0011] Furthermore, the clamping calibration mechanism also includes an electronic valve and a transmission tube. The end of the branch tube is connected to the electronic valve, and the side of the electronic valve away from the branch tube is connected to the transmission tube.

[0012] Furthermore, the clamping calibration mechanism also includes a piston rod, with the piston rod passing through the end of the transmission tube furthest from the electronic valve.

[0013] Furthermore, the clamping calibration mechanism also includes a clamping plate, and the end of the piston rod away from the transmission tube is fixed with the clamping plate.

[0014] Furthermore, the clamping calibration mechanism also includes a laser rangefinder sensor, with the laser rangefinder sensor embedded in the surface of the clamping plate, and the end of the laser rangefinder sensor being flush with the surface of the clamping plate.

[0015] Furthermore, a total of four laser rangefinders are provided, and the laser rangefinders and the clamping plate are distributed in a one-to-one manner. Moreover, the two laser rangefinders that are arranged opposite each other are staggered in that one is high and the other is low.

[0016] This invention provides an optical inspection fixture, which has the following beneficial effects:

[0017] 1. This optical inspection fixture features an electrically telescopic rod that extends to raise the center plate, inner ring plate, and outer ring plate, forming a pagoda-like structure with the fixture table surface. This creates a stepped distribution of the center plate, inner ring plate, outer ring plate, and fixture table from top to bottom. At this point, the center plate supports the center of the bottom of the optical lens, allowing the optical lens to be stably lifted away from the annular limiting groove. The edges of the optical lens are fully exposed, facilitating the transfer of the optical lens by a U-shaped tray or by a clamping mechanism. This significantly reduces the difficulty of unloading the optical lens after inspection and is widely adaptable to different picking, unloading, or transfer mechanisms.

[0018] 2. This optical inspection fixture uses clamping plates to hold optical lenses from various angles. When the clamping plates extend, two relatively distributed laser rangefinders are staggered, one high and one low. The laser rangefinders monitor the distance between the two clamping plates in real time. When the distance decreases to the pre-input diameter of the optical lens, the electronic valve closes the transmission tubes corresponding to the two laser rangefinders. Thus, when the distance monitored by the two sets of relatively distributed laser rangefinders matches the diameter of the optical lens, it indicates that the optical lens position adjustment and calibration are complete and the clamping is also finished. Furthermore, because the extension distance of the clamping plates is precisely controlled, excessive force on the optical lens can be avoided to prevent deformation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the tooling stage of an optical inspection tooling according to the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the tooling stage of an optical inspection tooling according to the present invention;

[0021] Figure 3 This is a schematic diagram of the annular hole structure of an optical detection fixture according to the present invention;

[0022] Figure 4 This is a schematic diagram of the lifting and loading mechanism of an optical inspection fixture according to the present invention;

[0023] Figure 5 This is a schematic cross-sectional view of the center plate of an optical inspection fixture according to the present invention.

[0024] In the diagram: 1. Tooling table; 2. Annular hole; 3. First limiting groove; 4. Lifting and loading mechanism; 401. First movable ring; 402. Outer ring plate; 403. Second limiting groove; 404. Second movable ring; 405. Inner ring plate; 406. Third limiting groove; 407. Third movable ring; 408. Center plate; 409. Electric telescopic rod; 5. Optical lens; 6. Movable ball bearing; 7. Clamping and calibration mechanism; 701. Oil pipe; 702. Electric piston push rod; 703. Diverter pipe; 704. Electronic valve; 705. Transmission pipe; 706. Piston rod; 707. Clamping plate; 708. Laser rangefinder sensor; 8. Optical inspection equipment. Detailed Implementation

[0025] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0026] like Figures 1-5As shown, the present invention provides a technical solution: an optical inspection fixture, including a fixture table 1 and a lifting and loading mechanism 4. An annular hole 2 is formed in the center of the top surface of the fixture table 1, and a first limiting groove 3 is formed on the inner side of the annular hole 2. The lifting and loading mechanism 4 is disposed inside the first limiting groove 3. The lifting and loading mechanism 4 includes a first movable ring 401, an outer ring plate 402, a second limiting groove 403, a second movable ring 404, an inner ring plate 405, a third limiting groove 406, a third movable ring 407, a center plate 408, and an electric telescopic rod 409. The outer ring plate 402 is fixed to the inner side of the first movable ring 401, and the second limiting groove 403 is formed on the inner side of the outer ring plate 402. A second movable ring is disposed inside the second limiting groove 403. The moving ring 404 has an inner ring plate 405 fixed on its inner side. The inner side of the inner ring plate 405 has a third limiting groove 406. The third limiting groove 406 has a third moving ring 407 inside. The inner side of the third moving ring 407 has a center plate 408 fixed on its inner side. The bottom of the center plate 408 has an electric telescopic rod 409 fixed on its bottom. Optical lenses 5 are placed on the surfaces of the outer ring plate 402, the inner ring plate 405, and the center plate 408. An optical inspection device 8 is set directly above the tooling table 1. The bottom of the electric telescopic rod 409 is fixed to the bottom of the inner wall of the tooling table 1. The vertical central axis of the electric telescopic rod 409 coincides with the vertical central axis of the outer ring plate 402, the inner ring plate 405, and the center plate 408.

[0027] The specific operation is as follows: the optical lens 5 to be tested is placed in the annular limiting groove on the surface of the fixture table 1. At this time, the electric telescopic rod 409 is in a retracted state, so that the center plate 408, the inner ring plate 405, and the outer ring plate 402 are flush with the surface of the fixture table 1. Then, the position of the optical lens 5 is adjusted and corrected by the clamping calibration mechanism 7 and clamped. At this time, the center of the optical lens 5 must coincide with the center of the center plate 408. Then, the fixture table 1 is moved to carry the optical lens 5 to the test position, and the optical testing equipment 8 tests the optical lens 5.

[0028] When the optical lens 5 needs to be removed after the test, the clamping calibration mechanism 7 first releases its grip on the optical lens 5. Then, the electric telescopic rod 409 extends stably to push the center plate 408 upward. At this time, the third movable ring 407 rises along the center plate 408 inside the third limiting groove 406. When the third movable ring 407 rises to the top of the third limiting groove 406, it will drive the inner ring plate 405 to rise. At this time, the second movable ring 404 rises along the inner ring plate 405 inside the second limiting groove 403. When the second movable ring 404 rises to the top of the second limiting groove 403, it will drive the outer ring plate 402 to rise. At this time, the first movable ring 401 rises along the outer ring plate 402 inside the first limiting groove 3 until the first movable ring 401 rises. 01 Reaching the top of the first limiting groove 3, the electric telescopic rod 409 stops extending. At this time, the center plate 408, inner ring plate 405, outer ring plate 402 and the surface of the tooling table 1 form a pagoda-shaped structure, so that the center plate 408, inner ring plate 405, outer ring plate 402 and tooling table 1 form a stepped distribution from top to bottom. At this time, the center plate 408 supports the center part of the bottom of the optical lens 5, so that the optical lens 5 is stably lifted to leave the annular limiting groove. At this time, the side of the optical lens 5 is completely exposed, so as to facilitate the U-shaped tray to support and transfer the optical lens 5, or the clamping mechanism to clamp and transfer the optical lens 5, thereby greatly reducing the difficulty of unloading the optical lens 5 after inspection, and at the same time, it is widely compatible with different picking, unloading or transfer mechanisms.

[0029] like Figures 1-5 As shown, movable ball bearings 6 are embedded in the surfaces of the outer ring plate 402 and the inner ring plate 405. A clamping and calibration mechanism 7 is provided inside the fixture table 1 on one side of the electric telescopic rod 409. The clamping and calibration mechanism 7 includes an oil pipe 701, an electric piston push rod 702, and a diversion pipe 703. One end of the oil pipe 701 is connected to the electric piston push rod 702, and the other end of the oil pipe 701 is connected to the diversion pipe 703. The end of the diversion pipe 703 away from the oil pipe 701 splits into four branches, and the end of each branch penetrates the top of the fixture table 1. The clamping and calibration mechanism 7 also includes an electronic valve 704 and a transmission pipe 705. The end of each branch is connected to the electronic valve 704, and the side of the electronic valve 704 away from the branch is connected to... The transmission tube 705 and the clamping calibration mechanism 7 also include a piston rod 706. The piston rod 706 passes through the end of the transmission tube 705 away from the electronic valve 704. The clamping calibration mechanism 7 also includes a clamping plate 707. The clamping plate 707 is fixed to the end of the piston rod 706 away from the transmission tube 705. The clamping calibration mechanism 7 also includes a laser range sensor 708. The laser range sensor 708 is embedded in the surface of the clamping plate 707, and the end of the laser range sensor 708 is flush with the surface of the clamping plate 707. A total of four laser range sensors 708 are provided, and the laser range sensors 708 and the clamping plate 707 are distributed one-to-one. Moreover, the two laser range sensors 708 that are arranged opposite each other are staggered in height.

[0030] The specific operation is as follows: the electric telescopic rod 409 is in a retracted state, making the center plate 408, inner ring plate 405, and outer ring plate 402 flush with the surface of the fixture table 1. In this state, the optical lens 5 to be inspected is placed in the annular limiting groove on the surface of the fixture table 1. At this time, the movable balls 6 distributed on the surfaces of the inner ring plate 405 and outer ring plate 402 support the optical lens 5. The movable balls 6 are evenly distributed and leave a certain gap on the moving trajectory of the clamping plate 707 so that the clamping plate 707 can move through. Based on this, the extension of the electric piston push rod 702 pushes the oil medium inside the oil pipe 701, so that the oil medium flows along the diversion pipe 703 to the inside of each transmission pipe 705, thereby pushing the piston rod 706 inside the transmission pipe 705 to carry the clamping plate 707 out and move. Each clamping plate 707 extends synchronously to push the optical lens 5 to move so that its position can be adjusted and corrected. When the lens 5 moves, the sliding friction is converted into rolling friction through the movable ball 6 to reduce friction and prevent wear on the surface of the optical lens 5. The clamping plate 707 clamps the optical lens 5 from various angles. When the clamping plate 707 extends, the two relatively distributed laser rangefinders 708 are staggered, one high and one low. The laser rangefinders 708 monitor the distance between the two clamping plates 707 in real time. When the distance is reduced to the pre-input diameter of the optical lens 5, the electronic valve 704 closes the transmission pipes 705 corresponding to the two laser rangefinders 708. When the distance monitored by the two sets of relatively distributed laser rangefinders 708 is consistent with the diameter of the optical lens 5, it indicates that the position adjustment and calibration of the optical lens 5 is completed and the clamping is also completed. Since the extension distance of the clamping plate 707 is precisely controlled, the optical lens 5 is prevented from being deformed due to excessive force.

[0031] In summary, when using this optical inspection fixture, the optical lens 5 to be inspected is first placed in the annular limiting groove on the surface of the fixture table 1. At this time, the electric telescopic rod 409 is in a retracted state, making the center plate 408, inner ring plate 405, and outer ring plate 402 flush with the surface of the fixture table 1. Then, the position of the optical lens 5 is adjusted and corrected using the clamping calibration mechanism 7. Specifically, the movable balls 6 distributed on the surfaces of the inner ring plate 405 and the outer ring plate 402 support the optical lens 5. The movable balls 6 are evenly distributed and leave a certain gap on the moving trajectory of the clamping plate 707 so that the clamping plate 707 can move through. Based on this, the extension of the electric piston push rod 702 pushes the oil medium inside the oil pipe 701, so that the oil medium flows along the diversion pipe 703 to the inside of each transmission pipe 705, thereby pushing the piston rod 706 inside the transmission pipe 705 to carry the clamping plate 707 out and move. Clamping plates 707 extend synchronously to push the optical lens 5 to move so that its position can be adjusted and corrected. When the optical lens 5 moves, the sliding friction force is converted into rolling friction force through the movable ball 6 to reduce friction and prevent the surface of the optical lens 5 from being worn. Clamping plates 707 clamp the optical lens 5 from various angles. When clamping plates 707 extend, two relatively distributed laser rangefinders 708 are staggered with one high and one low. The laser rangefinders 708 monitor the distance between the two clamping plates 707 in real time. When the distance size is reduced to the pre-input diameter size of the optical lens 5, the electronic valve 704 closes the transmission pipe 705 corresponding to the two laser rangefinders 708. Thus, when the distance size monitored by the two sets of relatively distributed laser rangefinders 708 is consistent with the diameter size of the optical lens 5, it indicates that the position adjustment and calibration of the optical lens 5 is completed and the clamping is also completed.

[0032] When the optical lens 5 needs to be removed after the test, the clamping calibration mechanism 7 first releases its grip on the optical lens 5. Then, the electric telescopic rod 409 extends stably to push the center plate 408 upward. At this time, the third movable ring 407 rises along the center plate 408 inside the third limiting groove 406. When the third movable ring 407 rises to the top of the third limiting groove 406, it will drive the inner ring plate 405 to rise. At this time, the second movable ring 404 rises along the inner ring plate 405 inside the second limiting groove 403. When the second movable ring 404 rises to the top of the second limiting groove 403, it will drive the outer ring plate 402 to rise. At this time, the first movable ring 401 rises along the outer ring plate 402. 2. The first movable ring 401 rises along the inside of the first limiting groove 3 until it reaches the top of the first limiting groove 3. At the same time, the electric telescopic rod 409 stops extending. At this time, the center plate 408, the inner ring plate 405, the outer ring plate 402 and the surface of the tooling table 1 form a pagoda-shaped structure, so that the center plate 408, the inner ring plate 405, the outer ring plate 402 and the tooling table 1 form a stepped distribution from top to bottom. At this time, the center plate 408 supports the center part of the bottom of the optical lens 5, so that the optical lens 5 is stably lifted to leave the annular limiting groove. At this time, the side of the optical lens 5 is completely exposed to facilitate the U-shaped tray to support and transfer the optical lens 5, or the clamping mechanism to clamp and transfer the optical lens 5.

[0033] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An optical inspection fixture, comprising a fixture table (1) and a lifting and loading mechanism (4), characterized in that: The tooling table (1) has an annular hole (2) in the center of its top surface, and a first limiting groove (3) is provided on the inner side of the annular hole (2). The lifting loading mechanism (4) is located inside the first limiting groove (3). The lifting loading mechanism (4) includes a first movable ring (401), an outer ring plate (402), a second limiting groove (403), a second movable ring (404), an inner ring plate (405), a third limiting groove (406), a third movable ring (407), a center plate (408), and an electric telescopic rod (409). The outer ring plate (402) is fixed on the inner side of the first movable ring (401), and the second limiting groove (403) is provided on the inner side of the outer ring plate (402). The second limiting groove (403) is provided with a second movable ring (404) inside, and an inner ring plate (405) is fixed on the inner side of the second movable ring (404). The inner side of the inner ring plate (405) is provided with a third limiting groove (406), and a third movable ring (407) is provided inside the third limiting groove (406). A center plate (408) is fixed on the inner side of the third movable ring (407), and an electric telescopic rod (409) is fixed at the bottom of the center plate (408). Optical lenses (5) are placed on the surfaces of the outer ring plate (402), the inner ring plate (405), and the center plate (408). An optical inspection device (8) is provided directly above the tooling table (1).

2. The optical inspection fixture according to claim 1, characterized in that: The bottom of the electric telescopic rod (409) is fixed to the bottom of the inner wall of the tooling table (1), and the vertical central axis of the electric telescopic rod (409) coincides with the vertical central axis of the outer ring plate (402), the inner ring plate (405), and the center plate (408).

3. The optical inspection fixture according to claim 1, characterized in that: The outer ring plate (402) and inner ring plate (405) are embedded with movable ball bearings (6), and the tooling table (1) is provided with a clamping and calibration mechanism (7) on one side of the electric telescopic rod (409).

4. The optical inspection fixture according to claim 3, characterized in that: The clamping calibration mechanism (7) includes an oil pipe (701), an electric piston push rod (702), and a diverter pipe (703). One end of the oil pipe (701) is provided with the electric piston push rod (702), and the other end of the oil pipe (701) is connected to the diverter pipe (703).

5. The optical inspection fixture according to claim 4, characterized in that: The end of the diversion pipe (703) away from the oil pipe (701) is divided into four branches, and the end of each branch penetrates the top of the tooling table (1).

6. The optical inspection fixture according to claim 5, characterized in that: The clamping calibration mechanism (7) also includes an electronic valve (704) and a transmission tube (705). The end of the branch tube is connected to the electronic valve (704), and the side of the electronic valve (704) away from the branch tube is connected to the transmission tube (705).

7. The optical inspection fixture according to claim 6, characterized in that: The clamping calibration mechanism (7) also includes a piston rod (706), and the piston rod (706) passes through one end of the transmission tube (705) away from the electronic valve (704).

8. The optical inspection fixture according to claim 7, characterized in that: The clamping calibration mechanism (7) also includes a clamping plate (707), and the end of the piston rod (706) away from the transmission tube (705) is fixed with the clamping plate (707).

9. An optical inspection fixture according to claim 8, characterized in that: The clamping calibration mechanism (7) further includes a laser rangefinder (708), the laser rangefinder (708) is embedded in the surface of the clamp (707), and the end of the laser rangefinder (708) is flush with the surface of the clamp (707).

10. An optical inspection fixture according to claim 9, characterized in that: There are four laser rangefinders (708) in total, and the laser rangefinders (708) and the clamping plate (707) are distributed one-to-one. Moreover, the two laser rangefinders (708) arranged opposite each other are staggered, one high and one low.

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