Lens light transmittance detection equipment

Abstract

The utility model provides lens light transmittance detection equipment which comprises a working table, a connecting arm arranged above the working table, a light transmittance detection head arranged on the connecting arm, a fixed ring arranged between the working table and the light transmittance detection head, a connecting ring arranged on the inner side of the fixed ring, and two movable rings which are vertically symmetrical and can ascend and descend arranged in the connecting ring. Two first electric telescopic rods in bilateral symmetry are fixed to the inner side of the moving ring, semicircular plates are fixed to the telescopic ends of the first electric telescopic rods, and the faces, used for bearing the lenses, of the semicircular plates extend out of the moving ring; a set of automatic telescopic rods which are distributed in an annular array mode and located between the two movable rings are fixed to the inner side of the connecting ring, and clamping blocks are arranged at the telescopic ends of the automatic telescopic rods. According to the utility model, the positions of the top surface and the bottom surface of the lens can be rapidly exchanged, the light transmittance of the two surfaces of the lens can be respectively detected, the operation process is simple and rapid, a worker does not need to manually turn over the lens, and the detection efficiency of the lens is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a lens transmittance testing device. Background Technology

[0002] Optical lenses, as a type of lens made of optical glass, have good scratch resistance and high refractive index. After optical lenses are manufactured, they also need to be tested by light transmittance testing equipment to determine whether the lenses are qualified.

[0003] For example, Chinese utility model patent application number CN202321068306.1 discloses a lens transmittance detection device, which solves the technical problem mentioned in the background art where, when testing other parts of the lens during lens testing, the lower pressure plate needs to be lifted and the lens moved, and then the lower pressure plate is pressed against the lens surface again, reducing the efficiency of lens transmittance detection. The device includes a worktable with a vertically upward-facing, hollow support fixed on it. A connecting arm parallel to the worktable slides on the support and can slide vertically. A transmittance detection head is mounted on the connecting arm. A first driving component for driving the connecting arm to slide is provided on the support. A movable plate is provided on the worktable, and a slidable platform is slidably mounted on the movable plate. A second driving component for driving the platform to slide is provided on the movable plate. An annular seat for placing the lens is fixed on the platform, and four clamping components for holding the lens are arranged in a cross shape on the annular seat.

[0004] Although the above-mentioned device can detect the transmittance of the lens, the transmittance of the lens needs to be detected on both sides. Therefore, after one side of the lens is detected, the staff still needs to manually flip the lens over and detect the other side. The operation process is cumbersome and reduces the detection efficiency of the lens. Utility Model Content

[0005] This utility model discloses a lens transmittance testing device, which solves the problem that after one side of the lens has been tested, the staff needs to manually flip the lens over and test the other side, which is a cumbersome process and reduces the efficiency of lens testing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A lens transmittance testing device includes a worktable, a connecting arm above the worktable, a transmittance testing head on the connecting arm, a fixed ring between the worktable and the transmittance testing head, a connecting ring inside the fixed ring, and two vertically symmetrical and height-adjustable movable rings inside the connecting ring. Two horizontally symmetrical electric telescopic rods are fixed inside the movable rings, with a semi-circular plate fixed to the telescopic end of each electric telescopic rod. The side of the semi-circular plate used to support the lens extends outside the movable ring. A set of automatically telescopic rods arranged in a circular array and located between the two movable rings are fixed inside the connecting ring, with clamping blocks at the telescopic ends of the automatically telescopic rods. A motor for driving the rotation of the connecting rings is located inside the fixed ring.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The two upper semicircular plates are moved away from each other, no longer blocking the two lower semicircular plates. The lens is then placed on the top surface of the circular plate formed by the two lower semicircular plates, and the lower moving ring is moved upwards until the bottom surface of the clamping block is flush with the top surface of the lower semicircular plate. Then, a set of clamping blocks moves towards the lens, securing it in place. The transmittance detection head can then perform transmittance testing on the lens. After one side of the lens has been tested, the two upper semicircular plates are brought together, and the set of clamping blocks is moved away from the lens, no longer positioned between the upper and lower semicircular plates. Then, the upper moving ring moves downwards, so that the upper... Two semicircular plates contact the lens and fix it in place. Motor 1 drives the connecting ring to rotate, swapping the positions of the upper and lower semicircular plates. At this time, the upper moving ring moves upward, moving the two upper semicircular plates away from the lens and away from each other, so as not to block the top of the lens. Then, a set of clamping blocks continues to move toward the lens to fix it in place, and then the transmittance detection head begins to detect the transmittance of the lens. This utility model can quickly change the position of the top and bottom surfaces of the lens and detect the transmittance of both sides of the lens separately. The operation process is simple and fast, and there is no need for staff to manually flip the lens, which improves the detection efficiency of the lens. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of the present invention;

[0011] Figure 2 This is a cross-sectional structural schematic diagram of the fixing ring of this utility model;

[0012] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0013] Figure 4 for Figure 2 A magnified structural diagram at point B.

[0014] In the diagram: 1. Workbench; 2. Connecting arm; 21. Transmittance detection head; 3. Fixing ring; 31. Motor No. 1; 32. Vertical plate; 4. Connecting ring; 41. Moving ring; 42. Battery; 43. Electric telescopic rod No. 1; 44. Semicircular plate; 45. Rubber pad; 46. Electric telescopic rod No. 2; 5. Automatic telescopic rod; 51. Clamping block; 52. Rubber sheet; 53. Connecting plate; 54. Spring; 55. Limiting rod; 6. Moving plate; 61. Hydraulic rod; 7. Motor No. 2; 71. Lead screw No. 1; 8. Support frame; 81. Slider; 9. Motor No. 3; 91. Lead screw No. 2. Detailed Implementation

[0015] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides a lens transmittance testing device, including a worktable 1, a connecting arm 2 above the worktable 1, a transmittance testing head 21 on the connecting arm 2, a fixing ring 3 between the worktable 1 and the transmittance testing head 21, a connecting ring 4 inside the fixing ring 3, two vertically symmetrical and height-adjustable movable rings 41 inside the connecting ring 4, two horizontally symmetrical electric telescopic rods 43 fixed inside the movable rings 41, a semi-circular plate 44 fixed to the telescopic end of the electric telescopic rod 43, the side of the semi-circular plate 44 used to support the lens extending outside the movable rings 41; a set of automatic telescopic rods 5 arranged in a ring array and located between the two movable rings 41 fixed inside the connecting ring 4, the telescopic end of the automatic telescopic rods 5 having a clamping block 51; a motor 31 for driving the rotation of the connecting rings 4 is provided inside the fixing ring 3. Activate the two upper electric telescopic rods 43 to move the two upper semicircular plates 44 away from each other, no longer blocking the two lower semicircular plates 44. The lens can then be placed on the circular plate formed by the two lower semicircular plates 44. Then, activate a set of automatic telescopic rods 5 to drive a set of clamping blocks 51 towards the lens, securing it. Next, activate the transmittance detection head 21 to begin transmitting light to the lens. Once the transmittance of one side of the lens has been measured, move the two upper semicircular plates 44 together until they contact each other. Activate the set of automatic telescopic rods 5 again to move the set of clamping blocks 51 away from the lens and remove them from between the upper and lower semicircular plates 44. Since the side of the upper and lower semicircular plates 44 that is close together (the side used to support the lens) is located between the two moving rings 41, the downward movement of the upper moving ring 41 allows the upper semicircular plate 44 to be placed on the circular plate formed by the lower semicircular plates 44. The bottom surfaces of the two semicircular plates 44 are in contact with the top surface of the lens, and together with the two lower semicircular plates 44, the lens is fixed. The main body of the first motor 31 is fixed on the inner wall of the fixing ring 3, and the rotating shaft of the first motor 31 is fixed to the outer wall of the connecting ring 4. A rotating rod that is rotatably connected to the fixing ring 3 is fixed on the side of the connecting ring 4 away from the first motor 31. After the first motor 31 is started, the connecting ring 4 can be rotated 180°, so that the upper semicircular plate 44 and the lower semicircular plate 44 are swapped. At this time, the side of the lens that is not being tested (bottom surface) corresponds to the transmittance detection head 21. Then, the upper moving ring 41 moves upward and activates the two first electric telescopic rods 43, so that the two upper semicircular plates 44 move away from the lens and no longer block the top surface of the lens. Then, a set of clamping blocks 51 continues to move toward the lens. After the lens is clamped and fixed, the transmittance of the untested side of the lens can be detected.

[0017] like Figure 2 and Figure 4As shown, a connecting plate 53 is fixed to the telescopic end of the automatic telescopic rod 5. A spring 54 is fixed between the connecting plate 53 and the clamping block 51. A limiting rod 55 passing through the connecting plate 53 is fixed to the side of the clamping block 51 away from the axis of the connecting ring 4. When the clamping block 51 moves toward the lens and contacts the outer ring surface of the lens, the clamping block 51 can compress the spring 54. The limiting rod 55 is slidably connected to the connecting plate 53, thus preventing the spring 54 from shaking randomly as it moves. A set of clamping blocks 51 can effectively fix the lens, and the setting of the spring 54 can prevent the telescopic end of the automatic telescopic rod 5 from moving too fast, which would cause damage to the edge of the lens due to the rapid movement of the clamping block 51. The spring 54 can play a buffering role.

[0018] like Figure 4 As shown, the clamping block 51 is arc-shaped, and a rubber sheet 52 is fixed on the inner wall of the clamping block 51. The arc-shaped clamping block 51 can better fit the outer ring surface of the lens and better fix the lens; the rubber sheet 52 can play a certain role in buffering and shock absorption when the clamping block 51 clamps the lens, and can also increase the friction force when clamping the lens, so that the lens is firmly clamped on the clamping block 51.

[0019] like Figure 2 and Figure 3 As shown, two sets of symmetrical second-order electric telescopic rods 46 are fixed to the inner side of the connecting ring 4. The telescopic ends of the two sets of second-order electric telescopic rods 46 are connected to the opposite sides of the two moving rings 41, respectively. A rubber pad 45 is fixed to the side of the semicircular plate 44 used to support the lens, and a storage battery 42 is fixed on the connecting ring 4. There are two second-order electric telescopic rods 46 in one set, which are symmetrically distributed from left to right. The telescopic ends of the second-order electric telescopic rods 46 are connected to the moving rings 41 through short rods. After the second-order electric telescopic rods 46 are started, the moving rings 41 can be driven to move up or down. The rubber pad 45 can increase the friction between the semicircular plate 44 and the lens, better fixing the lens on the semicircular plate 44. When the two upper semicircular plates 44 and the two lower semicircular plates 44 are close together, the rubber pad 45 can also play a buffering role when the lens is held and fixed. The storage battery 42 can supply power to the first-order electric telescopic rod 43, the automatic telescopic rod 5, and the second-order electric telescopic rod 46.

[0020] like Figure 1 As shown, the worktable 1 is equipped with a movable plate 6 that can slide back and forth. A hydraulic rod 61 for driving the movable plate 6 is fixed on the worktable 1, and a vertical plate 32 that is slidably connected to the movable plate 6 is fixed on the fixing ring 3. The telescopic end of the hydraulic rod 61 is fixed to the movable plate 6. After the hydraulic rod 61 is activated, the movable plate 6 can be driven to move forward or backward. The vertical plate 32 drives the fixing ring 3 to move, changing the position of the lens so that the transmittance detection head 21 can detect other parts of the lens.

[0021] like Figure 1 As shown, a second motor 7 is fixed to the top of the moving plate 6. A first lead screw 71 is fixed to the shaft of the second motor 7, and a vertical plate 32 threadedly connected to the first lead screw 71 is fixed to the fixing ring 3. The end of the first lead screw 71 away from the second motor 7 is rotatably connected to a fixing block fixed to the top of the moving plate 6. After the second motor 7 is started to rotate the first lead screw 71, the first lead screw 71 can drive the fixing ring 3 to move laterally through the vertical plate 32, so as to facilitate the light transmittance detection of other parts of the lens and further expand the detection range of the lens light transmittance.

[0022] like Figure 1 As shown, a support frame 8 is fixed on the workbench 1. A slider 81, which is fixed to the connecting arm 2, is slidably connected to the inner side of the support frame 8. A third motor 9 is fixed on the support frame 8. A second lead screw 91, which is threadedly connected to the slider 81, is fixed on the rotating shaft of the third motor 9. The first motor 31, the second motor 7, and the third motor 9 are all servo motors. After the third motor 9 is started to rotate the second lead screw 91, the slider 81 can drive the transmittance detection head 21 to move up or down through the connecting arm 2, so that the transmittance detection head 21 can be brought closer to or away from the lens, so as to better detect the lens.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lens transmittance testing device, comprising a worktable (1), a connecting arm (2) above the worktable (1), and a transmittance testing head (21) on the connecting arm (2), characterized in that: A fixed ring (3) is provided between the worktable (1) and the transmittance detection head (21). A connecting ring (4) is provided inside the fixed ring (3). Two vertically symmetrical and liftable movable rings (41) are provided inside the connecting ring (4). Two horizontally symmetrical electric telescopic rods (43) are fixed inside the movable rings (41). A semi-circular plate (44) is fixed at the telescopic end of the electric telescopic rod (43). The side of the semi-circular plate (44) used to support the lens extends outside the movable ring (41). A set of automatic telescopic rods (5) arranged in a ring array and located between the two movable rings (41) is fixed inside the connecting ring (4). A clamping block (51) is provided at the telescopic end of the automatic telescopic rod (5). A motor (31) is provided inside the fixed ring (3) to drive the connecting ring (4) to rotate.

2. The lens transmittance testing device according to claim 1, characterized in that: The telescopic end of the automatic telescopic rod (5) is fixed with a connecting plate (53), and a spring (54) is fixed between the connecting plate (53) and the clamping block (51). A limiting rod (55) that passes through the connecting plate (53) is fixed on the side of the clamping block (51) away from the axis of the connecting ring (4).

3. The lens transmittance testing device according to claim 1, characterized in that: The clamping block (51) is arc-shaped, and a rubber sheet (52) is fixed on the inner wall of the clamping block (51).

4. The lens transmittance testing device according to claim 1, characterized in that: Two sets of symmetrical second electric telescopic rods (46) are fixed on the inner side of the connecting ring (4). The telescopic ends of the two sets of second electric telescopic rods (46) are connected to the opposite sides of the two moving rings (41). A rubber pad (45) is fixed on the side of the semicircular plate (44) used to support the lens. A storage battery (42) is fixed on the connecting ring (4).

5. The lens transmittance testing device according to claim 1, characterized in that: The workbench (1) is provided with a movable plate (6) that can slide back and forth. A hydraulic rod (61) for driving the movable plate (6) is fixed on the workbench (1). A vertical plate (32) that is slidably connected to the movable plate (6) is fixed on the fixing ring (3).

6. The lens transmittance testing device according to claim 5, characterized in that: The top of the movable plate (6) is fixed with a second motor (7), and a first lead screw (71) is fixed on the shaft of the second motor (7). A vertical plate (32) that is threadedly connected to the first lead screw (71) is fixed on the fixing ring (3).

7. The lens transmittance testing device according to claim 1, characterized in that: A support frame (8) is fixed on the workbench (1). A slider (81) that is fixed to the connecting arm (2) is slidably connected to the inner side of the support frame (8). A No. 3 motor (9) is fixed on the support frame (8). A No. 2 lead screw (91) that is threadedly connected to the slider (81) is fixed on the shaft of the No. 3 motor (9).

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