Tray positioning device for lens appearance detection

Abstract

The utility model provides a tray positioning device for lens appearance detection, which comprises a frame body and a lens tray, a placing table for placing the lens tray is arranged in the frame body, a detection table is arranged on one side of the placing table, and a placing frame for placing the lens tray is arranged on the detection table. Mounting parts are arranged on the four side walls of the placing frame, abutting plates are slidably arranged on the mounting parts, first elastic pieces are arranged on the mounting parts, the first elastic pieces are used for driving the abutting plates to move towards the placing frame, and the side walls, close to the placing frame, of the abutting plates are used for abutting against the side walls of the lens trays; according to the lens detection device, the position deviation of the tray in the detection process can be effectively reduced, and the lens detection effect and quality are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical element detection, in particular to a tray positioning device used for lens appearance detection. Background Art

[0002] The contents of this section merely provide background information related to the present invention and may not constitute prior art.

[0003] With the gradual expansion of the scale of the domestic lens industry, the market demand for optical lenses has gradually increased, and the quality requirements for optical lenses have become higher and higher. The detection of optical lens defects usually includes the following two detection methods: one is through manual detection, in which the inspectors use a microscope to inspect the yellow spots, black spots, demolding points, scratches, dirt, bubbles, etc. on the optical lenses, and finally select the qualified lenses that meet the requirements; the other is to use machines to detect the lenses.

[0004] When using a machine to inspect lenses, the lenses to be inspected are first placed in a tray, and then photographed one by one through a special microscope camera. The photographs are then screened one by one through a specific computer program to select good lenses and defective lenses that meet the requirements. Compared with manual inspection, machine equipment inspection is more efficient, and can also effectively reduce the workload of staff, reduce the impact of human errors on lens inspection, and improve the quality of inspection.

[0005] However, the above-mentioned related technologies still have the following defects. In order to improve the detection efficiency, dozens or even more lenses are usually placed in a tray, and then the tray is stepwise moved by the equipment so that the camera can take pictures of all the lenses one by one. During this process, if the position of the tray deviates slightly, it will cause a large offset in the lens photos taken by the camera, and it may even be difficult to take a complete lens photo, which has a great impact on the subsequent lens detection. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a tray positioning device for lens appearance inspection, which can effectively reduce the position deviation of the tray during the inspection process by fixing the position of the lens tray, thereby improving the effect and quality of lens inspection.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] A tray positioning device for lens appearance inspection comprises a frame and a lens tray, wherein a placing table for placing the lens tray is arranged in the frame, a detection table is arranged on one side of the placing table, a placing frame for placing the lens tray is arranged on the detection table, mounting parts are arranged on the four side walls of the placing frame, an abutment plate is slidably arranged on the mounting part, a first elastic member is arranged on the mounting part, the first elastic member is used to drive the abutment plate to move toward the placing frame, the abutment plate is close to the side wall of the placing frame and is used to abut the side wall of the lens tray, and a limiting member is arranged on the mounting part, the limiting member is used to limit the position of the abutment plate on the mounting part.

[0009] In some possible embodiments, a slide groove is opened on the mounting portion, a slider is slidably arranged in the slide groove, the bottom of the abutment plate is fixedly connected to the top of the slider, the first elastic member is arranged in the slide groove, the first elastic member is used to drive the slider to move toward the placement frame, and the limit member is used to limit the position of the slider in the slide groove.

[0010] In some possible embodiments, the limiting member is configured as a limiting pin, an installation cavity is opened inside the installation part, a through hole is opened in the vertical direction on the top wall of the installation cavity away from the placement frame, the through hole is connected to the bottom of the slide groove, the limiting member is slidably arranged in the through hole, a limiting hole for inserting the limiting member is opened at the bottom of the slider, a second elastic member is arranged on the installation part, the second elastic member is used to drive the limiting member to move toward the direction close to the slide groove, and a driving member is arranged on the installation part, the driving member is used to drive the limiting member to disengage from the limiting hole.

[0011] In some possible embodiments, the driving member is configured as a pressure rod, and a connecting hole is opened at the top of the mounting portion in the vertical direction, the connecting hole is located on the side of the slide groove close to the placement frame, the bottom of the connecting hole is connected to the mounting cavity, the driving member is slidably arranged in the connecting hole along the vertical direction, and a connecting rod is arranged in the mounting cavity, one end of the connecting rod is fixedly connected to the bottom of the limiting member, and the other end is fixedly connected to the bottom of the driving member, the limiting member and the driving member are connected as a whole through the connecting rod, and the top of the driving member is used to abut against the bottom of the tray.

[0012] In some possible embodiments, guide grooves are provided on the left and right side walls of the installation cavity in the vertical direction, guide blocks are slidably arranged in the guide grooves, the guide block in the left guide groove is fixedly connected to the limit member, and the guide block in the right guide groove is fixedly connected to the driving member, the second elastic member is arranged in the guide groove, and a second elastic member is provided under each guide block, and the second elastic member is used to drive the guide block to move upward in the guide groove.

[0013] In some possible embodiments, a mounting groove is formed at the top of the limiting member, and a rotating shaft is rotatably disposed in the mounting groove, and the rotating shaft is used for rolling contact with the side wall of the limiting hole.

[0014] In some possible embodiments, the top of the limiting pin is configured as a curved surface.

[0015] Furthermore, when the second elastic member pushes the guide block upward in the guide groove, The drive member extends upward to connect The length of the hole is greater than the length of the limiter inserted upward into the limit hole .

[0016] In some possible embodiments, an abutment buffer strip is fixedly provided on a side wall of the abutment plate close to the placement frame along a length direction of the abutment plate.

[0017] In some possible embodiments, a connecting block is fixedly provided on the side wall of the placement frame, a slot is opened on the side wall of the connecting block, an insert block is fixedly provided on the side wall of the mounting portion, the insert block is plug-connected to the slot, a positioning piece is provided on the connecting block, and the positioning piece is used to limit the position of the insert block in the slot.

[0018] In some possible embodiments, the positioning member is configured as a positioning bolt, a mounting hole connected to the slot is provided on the side wall of the connecting block, the positioning member is slidably inserted into the mounting hole, and a positioning hole threadedly connected to the positioning member is provided on the side wall of the insert block.

[0019] In summary, the technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0020] 1. When photographing the lenses on the tray, the lens tray is sucked up and transported to the placement frame by the transfer device, and is specifically placed in the area between the four abutment plates arranged on the four side walls of the placement frame. When the lens tray is placed from top to bottom on the placement frame between the four abutment plates, the four sides of the lower surface of the lens tray all press the driving member from top to bottom, so that the driving member moves downward in the connecting hole, thereby driving the limiting member to disengage from the limiting hole from top to bottom, so as to release the position restriction of the abutment plate on the mounting portion by the limiting member, and then the abutment plate moves toward the placement frame under the action of the first elastic member, and then the side wall of the abutment plate abuts against the side wall of the lens tray. Since the mounting portion and the abutment plate are arranged on the four side walls of the placement frame, the four sides of the lens tray can be abutted and positioned, and then the position of the lens tray on the placement frame can be limited, which can effectively reduce the position deviation of the lens tray during the detection process, and thus improve the effect and quality of lens detection;

[0021] 2. When the lens tray is pressed and positioned, the lens tray is placed on the placement frame, the bottom of the lens tray is abutted against the top of the driving member, and under the pressure of the lens tray, the driving member moves downward, thereby driving the connecting rod to move downward, and the connecting rod drives the limiting member to move downward, so that the end of the limiting member is separated from the limiting hole, and the abutting plate can move toward the lens tray under the action of the first elastic member, thereby abutting and limiting the lens tray, thereby achieving the effect of positioning the lens tray;

[0022] 3. When the limiting member moves in the limiting hole, the sliding friction between the limiting member and the inner wall of the limiting hole is converted into rolling friction by rotating the shaft, thereby effectively reducing the friction between the limiting member and the inner wall of the limiting hole, facilitating the movement of the limiting member in the limiting hole and reducing the wear between the limiting member and the inner wall of the limiting hole;

[0023] 4. When different lenses need to be tested, different lens models correspond to lens trays of different sizes. According to the different sizes of the lens trays, different mounting parts need to be replaced to adjust the distance between the two relative abutment plates, so that it can be suitable for lens trays of different sizes, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the lens tray and the placement frame of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the abutment plate and the placement frame of the utility model;

[0027] Figure 4 It is a cross-sectional view of the installation portion of the utility model;

[0028] Figure 5 It is a schematic diagram of the explosion structure of the limiting member of the utility model.

[0029] Icons: 1. frame; 11. placement table; 12. testing table; 13. mounting frame; 14. camera; 2. lens tray; 21. placement compartment; 22. storage tray; 23. accommodating hole; 3. placement frame; 31. light-transmitting plate; 4. mounting portion; 41. abutment plate; 42. first elastic member; 43. limiting member; 44. mounting cavity; 45. through hole; 46. limiting hole; 47. second elastic member; 48. driving member; 5. slide groove; 51. slider; 6. connecting hole; 61. connecting rod; 62. guide groove; 63. guide block; 7. mounting groove; 71. rotating shaft; 8. connecting block; 81. slot; 82. plug-in block; 83. positioning member; 84. mounting hole; 85. positioning hole; 9. abutting buffer strip. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] The following reference Figures 1 to 5 The utility model is described in further detail.

[0032] Reference Figure 1 A tray positioning device for lens appearance inspection includes a frame 1 and a lens tray 2. A placement table 11 for placing the lens tray 2 is arranged in the frame 1. A plurality of lens trays 2 can be arranged and can be stacked on the placement table 11. A detection table 12 is arranged on one side of the placement table 11. A mounting frame 13 is arranged above the detection table 12. A camera 14 for photographing the lens is arranged on the mounting frame 13. The top of the mounting frame 13 is fixedly connected to the frame 1.

[0033] Reference Figure 2 A plurality of placement bins 21 are provided on the lens tray 2, each placement bin 21 is provided with a placement tray 22, and a plurality of receiving holes 23 are provided on the placement tray 22. When performing lens testing, the lenses to be tested are placed in the receiving holes 23.

[0034] Among them, refer to Figure 2 , 3 A placement frame 3 for placing the lens tray 2 is provided on the inspection table 12 , a light-transmitting plate 31 is provided inside the placement frame 3 , a light-filling device is provided at the bottom of the light-transmitting plate 31 , and the light-filling device is fixedly connected to the placement frame 3 .

[0035] Among them, refer to Figures 2 to 4 A mounting portion 4 is provided on the four side walls of the placement frame 3, a contact plate 41 is slidably provided on the mounting portion 4, a first elastic member 42 is provided on the mounting portion 4, the first elastic member 42 is used to drive the contact plate 41 to move toward the placement frame 3, the contact plate 41 is close to the side wall of the placement frame 3 and is used to contact the side wall of the lens tray 2, a limiting member 43 is provided on the mounting portion 4, and the limiting member 43 is used to limit the position of the contact plate 41 on the mounting portion 4.

[0036] Reference Figure 3 and Figure 4A slide groove 5 is provided on the mounting portion 4. Preferably, the slide groove 5 is provided in the middle of the length direction of the mounting portion 4. A slider 51 is slidably provided in the slide groove 5. The sliding direction of the slider 51 in the slide groove 5 is perpendicular to the length direction of the abutment plate 41. The bottom of the abutment plate 41 is fixedly connected to the top of the slider 51. A first elastic member 42 is provided in the slide groove 5. The first elastic member 42 is used to drive the slider 51 to move toward a direction close to the placement frame 3. The limit member 43 is used to limit the position of the slider 51 in the slide groove 5.

[0037] As an implementation mode of the present utility model, refer to Figure 4 The slide groove 5 is provided as a T-shaped groove, and the slider 51 is provided as a T-shaped block adapted to the slide groove 5; as another possible implementation manner of the utility model, the slide groove 5 can also be provided as a dovetail groove, and the slider 51 is provided as a dovetail block adapted to the slide groove 5.

[0038] Reference Figure 4 As an embodiment of the present invention, the first elastic member 42 is configured as a compression spring, one end of the first elastic member 42 is fixedly connected to the inner wall of the slide groove 5, and the other end is fixedly connected to the side wall of the slider 51.

[0039] Reference Figure 4 , 5 The limiting member 43 is set as a limiting pin, and a mounting cavity 44 is provided inside the mounting portion 4. The mounting cavity 44 is in a U-shaped structure. A through hole 45 is provided in the top wall of the mounting cavity 44 away from the placement frame 3 along the vertical direction. The through hole 45 is connected to the bottom of the slide 5. The limiting member 43 is slidably provided in the through hole 45 along the vertical direction. A limiting hole 46 for inserting the limiting member 43 is provided at the bottom of the slider 51. A second elastic member 47 is provided on the mounting portion 4. The second elastic member 47 is used to drive the limiting member 43 to move toward the direction close to the slide 5, that is, to move upward. A driving member 48 is provided on the mounting portion 4. The driving member 48 is used to drive the limiting member 43 to disengage from the limiting hole 46. Specifically, by pressing the driving member 48 from top to bottom, the limiting member 43 is driven to disengage from the limiting hole 46.

[0040] Reference Figure 4 , 5The driving member 48 is configured as a pressure rod, and a connecting hole 6 is opened at the top of the mounting portion 4 in the vertical direction. The connecting hole 6 is located on the side of the slide groove 5 close to the placement frame 3. The bottom of the connecting hole 6 is connected to the mounting cavity 44. The driving member 48 is slidably arranged in the connecting hole 6 in the vertical direction. A connecting rod 61 is arranged in the mounting cavity 44. One end of the connecting rod 61 is fixedly connected to the bottom of the limiting member 43, and the other end is fixedly connected to the bottom of the driving member 48. The limiting member 43 and the driving member 48 are connected as a whole through the connecting rod 61. Specifically, the limiting member 43, the connecting rod 61 and the driving member 48 are formed as one piece. The top of the driving member 48 is used to abut against the bottom of the lens tray 2. When the second elastic member 47 pushes the guide block 63 upward in the guide groove 62, the length of the driving member 48 extending upward from the connecting hole 6 is greater than the length of the limiting member 43 inserted upward into the limiting hole 46, so that the limiting member 43 can be separated from the limiting hole 46 by pressing the driving member 48 from top to bottom.

[0041] Among them, refer to Figure 4 A guide groove 62 is provided on both the left and right side walls of the installation cavity 44 in the vertical direction, and a guide block 63 is slidably provided in the guide groove 62. Figure 4 As shown, the guide block 63 in the left guide groove 62 is fixedly connected to the limit member 43, and the guide block 63 in the right guide groove 62 is fixedly connected to the driving member 48. The second elastic member 47 is arranged in the guide groove 62, and a second elastic member 47 is provided under each guide block 63. The second elastic member 47 is used to drive the guide block 63 to move upward in the guide groove 62.

[0042] As an implementation mode of the present utility model, refer to Figure 4 The second elastic member 47 is configured as a compression spring, one end of the second elastic member 47 is fixedly connected to the inner bottom wall of the guide groove 62 , and the other end is fixedly connected to the bottom of the guide block 63 .

[0043] Among them, refer to Figure 5 A mounting groove 7 is provided at the top of the limiting member 43 , and a rotating shaft is rotatably provided in the mounting groove 7 , and the rotating shaft is used for rolling contact with the side wall of the limiting hole 46 .

[0044] Reference Figure 5 The top of the limit pin is set as an arc surface. By setting the top of the limit pin as an arc surface, it is possible to effectively facilitate the insertion of the limit pin into the limit hole 46, thereby improving the convenience of the device in actual use.

[0045] Reference Figure 4Abutment buffer strip 9 is fixedly provided on the side wall of the abutment plate 41 close to the placement frame 3 along the length direction of the abutment plate 41. Preferably, the abutment buffer strip 9 is a rubber or plastic strip, and the abutment buffer strip 9 can buffer the collision between the abutment plate 41 and the lens tray 2, so that the kinetic energy generated when the abutment plate 41 collides with the lens tray 2 under the action of the first elastic member 42 can be effectively reduced, so as to avoid the kinetic energy causing the position shift of the lens to be detected on the lens tray 2, thereby improving the effect and quality of subsequent lens detection.

[0046] Reference Figure 3 A connecting block 8 is fixedly provided on the side wall of the placement frame 3, a slot 81 is opened on the side wall of the connecting block 8, an insert block 82 is fixedly provided on the side wall of the mounting portion 4, the insert block 82 is plugged into the slot 81, a positioning piece 83 is provided on the connecting block 8, and the positioning piece 83 is used to limit the position of the insert block 82 in the slot 81.

[0047] As an implementation mode of the present utility model, refer to Figure 3 The positioning member 83 is set as a positioning bolt, and a mounting hole 84 connected to the slot 81 is opened on the side wall of the connecting block 8. The positioning member 83 is slidably inserted in the mounting hole 84, and a positioning hole 85 threadedly connected to the positioning member 83 is opened on the side wall of the insert block 82.

[0048] The implementation principle of a tray positioning device for lens appearance inspection proposed in the embodiment of the utility model is as follows:

[0049] When photographing the lenses on the lens tray 2, the lens tray 2 is sucked up and transported to the placement frame 3 by the transfer device, and is specifically placed in the area between the four abutment plates 41 provided on the four side walls of the placement frame 3. When the lens tray 2 is placed from top to bottom on the placement frame 3 between the four abutment plates 41, as shown in FIG. Figure 2 and Figure 3 As shown, the four sides of the lower surface of the lens tray 2 all press the driving member 48 from top to bottom, so that the driving member 48 moves downward in the connecting hole 6, thereby driving the limiting member 43 to disengage from the limiting hole 46 from top to bottom, so as to release the limitation of the position of the abutting plate 41 on the mounting portion 4 by the limiting member 43, and then the abutting plate 41 moves toward the direction close to the placement frame 3 under the action of the first elastic member 42, and then the side wall of the abutting plate 41 abuts against the side wall of the lens tray 2. Since the mounting portion 4 and the abutting plate 41 are provided on the four side walls of the placement frame 3, the four sides of the lens tray 2 can be abutted and positioned, and then the position of the lens tray 2 on the placement frame 3 can be limited, which can effectively reduce the position deviation of the lens tray 2 during the detection process, and thus improve the effect and quality of lens detection.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tray positioning device for lens appearance inspection, comprising a frame (1) and a lens tray (2), wherein a placement table (11) for placing the lens tray (2) is provided in the frame (1), a detection table (12) is provided on one side of the placement table (11), and a placement frame (3) for placing the lens tray (2) is provided on the detection table (12), characterized in that: A mounting portion (4) is provided on each of the four side walls of the placement frame (3); a contact plate (41) is slidably provided on the mounting portion (4); a first elastic member (42) is provided on the mounting portion (4); the first elastic member (42) is used to drive the contact plate (41) to move toward the placement frame (3); the contact plate (41) is close to the side wall of the placement frame (3) and is used to contact the side wall of the lens tray (2); a limiting member (43) is provided on the mounting portion (4); the limiting member (43) is used to limit the position of the contact plate (41) on the mounting portion (4).

2. A tray positioning device for lens appearance inspection according to claim 1, characterized in that: A slide groove (5) is provided on the mounting portion (4), a slider (51) is slidably arranged in the slide groove (5), the bottom of the abutment plate (41) is fixedly connected to the top of the slider (51), the first elastic member (42) is arranged in the slide groove (5), the first elastic member (42) is used to drive the slider (51) to move toward the placement frame (3), and the limiting member (43) is used to limit the position of the slider (51) in the slide groove (5).

3. A tray positioning device for lens appearance inspection according to claim 2, characterized in that: The limiting member (43) is configured as a limiting pin. A mounting cavity (44) is provided inside the mounting portion (4). A through hole (45) is provided in the top wall of the mounting cavity (44) on the side away from the placement frame (3) in the vertical direction. The through hole (45) is connected to the bottom of the slide groove (5). The limiting member (43) is slidably arranged in the through hole (45). A limiting hole (46) for inserting the limiting member (43) is provided at the bottom of the slider (51). A second elastic member (47) is provided on the mounting portion (4). The second elastic member (47) is used to drive the limiting member (43) to move in a direction close to the slide groove (5). A driving member (48) is provided on the mounting portion (4). The driving member (48) is used to drive the limiting member (43) to disengage from the limiting hole (46).

4. A tray positioning device for lens appearance inspection according to claim 3, characterized in that: The driving member (48) is configured as a pressure rod. A connecting hole (6) is provided at the top of the mounting portion (4) in a vertical direction. The connecting hole (6) is located on a side of the slide groove (5) close to the placement frame (3). The bottom of the connecting hole (6) is connected to the mounting cavity (44). The driving member (48) is slidably arranged in the connecting hole (6) in the vertical direction. A connecting rod (61) is provided in the mounting cavity (44). One end of the connecting rod (61) is fixedly connected to the bottom of the limiting member (43), and the other end is fixedly connected to the bottom of the driving member (48). The limiting member (43) and the driving member (48) are connected as a whole through the connecting rod (61). The top of the driving member (48) is used to abut against the bottom of the tray.

5. The tray positioning device for lens appearance inspection according to claim 4, characterized in that: Guide grooves (62) are provided on the left and right side walls of the installation cavity (44) in the vertical direction, and guide blocks (63) are slidably provided in the guide grooves (62). The guide block (63) in the left guide groove (62) is fixedly connected to the limit member (43), and the guide block (63) in the right guide groove (62) is fixedly connected to the driving member (48). The second elastic member (47) is provided in the guide groove (62), and a second elastic member (47) is provided under each guide block (63). The second elastic member (47) is used to drive the guide block (63) to move upward in the guide groove (62).

6. The tray positioning device for lens appearance inspection according to claim 2, characterized in that: The top of the limiting member (43) is provided with a mounting groove (7), and a rotating shaft is rotatably arranged in the mounting groove (7), and the rotating shaft is used for rolling contact with the side wall of the limiting hole (46).

7. The tray positioning device for lens appearance inspection according to claim 5, characterized in that: The top of the limit pin is configured as a cambered surface; When the second elastic member (47) pushes the guide block (63) upward in the guide groove (62), the length of the driving member (48) extending upward from the connecting hole (6) is greater than the length of the limiting member (43) inserted upward into the limiting hole (46).

8. A tray positioning device for lens appearance inspection according to any one of claims 1 to 6, characterized in that: An abutment buffer strip (9) is fixedly arranged on the side wall of the abutment plate (41) close to the placement frame (3) along the length direction of the abutment plate (41).

9. A tray positioning device for lens appearance inspection according to any one of claims 1 to 6, characterized in that: A connecting block (8) is fixedly arranged on the side wall of the placement frame (3); a slot (81) is opened on the side wall of the connecting block (8); an inserting block (82) is fixedly arranged on the side wall of the mounting portion (4); the inserting block (82) is plug-connected with the slot (81); a positioning piece (83) is arranged on the connecting block (8); the positioning piece (83) is used to limit the position of the inserting block (82) in the slot (81).

10. The tray positioning device for lens appearance inspection according to claim 9, characterized in that: The positioning member (83) is configured as a positioning bolt, a mounting hole (84) connected to the slot (81) is provided on the side wall of the connecting block (8), the positioning member (83) is slidably inserted into the mounting hole (84), and a positioning hole (85) threadedly connected to the positioning member (83) is provided on the side wall of the insert block (82).

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