Optical lens detection instrument and detection method thereof

Abstract

The invention relates to the technical field of optical lens detection instruments, in particular to an optical lens detection instrument and a detection method thereof.The optical lens detection instrument comprises a rack, a station switching module, a lens fixing frame, a rotating module, a clamping module, a transition roller set, a buffer roller set, a receiving roller set, a roller set fixing frame, a discharging roller set and a roller frame driving module; the transition roller set, the receiving roller set and the discharging roller set are installed on the roller set fixing frame from left to right, the buffer roller set is connected to the rack, the prism is clamped by the clamping module and rotates under the action of the rotating module, the transition roller set slides up and down under the action of the rotating module while sliding left and right along with the roller set fixing frame, and the buffer roller set is connected to the rack. According to the triangular prism pasting device, the multiple sets of adhesive tape are pasted with the triangular prism at the same time and then separated, and the triangular prism rotates in the separation process, so that the purposes that the pasting frequency is reduced while the triangular prism is pasted through the narrow adhesive tape are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lens testing instruments, and in particular to an optical lens testing instrument and a testing method thereof. Background Art

[0002] Optical lenses are made of a mixture of oxides of various elements according to a formula, and are classified into various categories according to their uses, ranging from glasses for daily use to components in high-precision equipment, such as prisms in spectrometers. In the manufacture of optical lenses, in order to enhance the performance of the lenses, the surface of the lenses is often coated. For example, for prisms used as reflectors, a layer of enhanced reflective film can be coated on the surface to increase the light intensity of the image.

[0003] After the optical lens is coated, the film adhesion needs to be tested to avoid the negative impact caused by the film falling off during use. A more common method is to use a scratch tester to scratch the surface of the lens, and analyze the film adhesion by detecting the scratches. This method has a long detection cycle and will cause irreversible damage to the lens. It is obviously only suitable for random inspections of low-cost lenses. For optical lenses used in high-precision equipment, a full inspection is necessary to ensure the quality of the lenses. Therefore, the existing technology uses a tape peeling method for detection, that is, sticking tape on the surface of the optical lens, and then tearing it off to observe the surface finish of the lens for detection.

[0004] The tape stripping method can be used to complete the adhesion test of the optical lens film under non-destructive conditions. However, there are problems that need to be improved for larger optical lenses (such as equilateral prisms with a specification of 30X30X30X100mm). When using tape to stick optical lenses, the width of the tape can be selected. Using wide tape can stick to a wider area at one time to increase the detection rate, but it is also easy to produce bubbles between the tape and the lens, requiring the operator's proficiency to ensure the quality of detection; using narrower tape can effectively avoid the generation of bubbles, but the detection efficiency will be reduced.

[0005] In order to improve the detection efficiency while ensuring the detection quality, an optical lens detection instrument and a detection method thereof are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an optical lens detection instrument and a detection method thereof, which solves the problem of mutual exclusion between detection efficiency and detection quality when manually detecting the film adhesion of a prism. By simultaneously sticking multiple sets of tapes to the prism and then separating them, and by the prism rotating during the separation process, the purpose of using narrow tape to stick the prism while reducing the number of sticking times is achieved.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An optical lens detection instrument is used in conjunction with an adhesive tape, comprising a frame, a station switching module, a lens fixing frame, a rotating module, a clamping module, a transition roller group, a buffer roller group, a receiving roller group, a roller group fixing frame, a discharge roller group, and a roller frame driving module. The adhesive tape is provided with multiple strips. The station switching module comprises a cutting motor, a cutting transmission and a cutting shaft. The cutting shaft is installed on the upper left side of the frame. There are multiple lens fixing frames, and the multiple lens fixing frames are circumferentially arrayed on the circumferential surface of the cutting shaft. The rotating module and the clamping module are respectively arranged below and above the lens fixing frame. A prism is placed on the rotating module. The roller group fixing frame is slidably connected to the upper right side of the frame. The transition roller group, the receiving roller group, and the discharge roller group are installed on the roller group fixing frame from left to right. The buffer roller group is connected to the frame, and the transition roller group, the receiving roller group, the discharge roller group, and the buffer roller group are all in contact with the adhesive tape. The roller frame driving module is installed on the right side of the roller group fixing frame.

[0009] The plurality of lens fixing frames revolve around the central axis of the cutting axis, the prism is clamped by the clamping module and rotates by the rotation module, the transition roller group slides left and right with the roller group fixing frame and slides up and down under the action of the rotation module, and the buffer roller group slides left and right with the roller group fixing frame to loosen or tighten the tape.

[0010] Preferably, the rotating module includes a rotating motor, a main shaft, a first bearing, a push plate, a flexible ring and a positioning ring. The rotating motor is connected below the lens fixing frame, and the main shaft is connected to the output shaft of the rotating motor. The first bearing, push plate, flexible ring and positioning ring are nested on the main shaft from bottom to top. The positioning ring includes a ring body, a positioning block and a protrusion. The ring body is gap-connected to the main shaft. The number of the positioning blocks is three and they are distributed at equal angles on the circumference of the ring body. The protrusion is arranged inside the ring body, and the number of the protrusions is also three and they are respectively aligned with the three positioning blocks. The protrusion cooperates with the groove opened on the main shaft to limit the rotation of the positioning ring.

[0011] Through the above scheme, the operator can use the positioning ring to quickly place the prism to the correct position, thereby improving the efficiency of detection. After the clamping module clamps the prism, the positioning ring can be rotated to tighten the lower end surface of the prism, making the clamping of the prism on the lens fixing part more stable, thereby making the detection result more reliable.

[0012] Preferably, the upper end surface of the push plate includes a plane and a convex surface from the middle to the side, and an arc surface is arranged between the plane and the convex surface, and the transition roller group includes a support rod, a transition roller shaft, a second bearing and a transition roller wheel, the support rod is connected to the left side of the roller group fixing frame, the transition roller shaft is slidably connected to the support rod, the second bearing is nested on the transition roller shaft, a cross bar is arranged below the transition roller shaft, a connecting plate is connected between the two cross bars, and the minimum spacing value of the two cross bars is greater than the sum of the width values ​​of the vertical projections of the convex surface and the arc surface on the upper end surface of the push plate, and the lower end surface of the cross bar is located between the plane and the convex surface.

[0013] Through the above scheme, the transition roller group can be moved to the left so that before the tape is bonded to the prism, the tape between the two transition roller groups has two states in the vertical direction: 1. The convex surface is facing the tape between the two transition roller groups. At this time, the lower end surface of the cross bar does not contact the upper end surface of the push plate, and the tape between the two transition roller groups remains in one position; 2. The convex surface is offset with the rotation of the main shaft. At this time, before the tape moves to the left and contacts the prism, the lower end surface of the cross bar will first slide onto the convex surface with the help of the arc surface, and be lifted by the convex surface, so that it moves up a distance with the help of the push plate, so that the tape between the two transition roller groups rises to another position. With these two states, the tape can be pasted twice to fully cover one side of the prism.

[0014] Preferably, the transition roller comprises a roller body, a roller surface and a roller groove, the roller body is embedded in the outer ring of the second bearing, the roller surface and the roller groove are arranged alternately on the circumference of the roller body, and the multiple tapes are respectively wound on multiple roller surfaces.

[0015] Through the above scheme, using multiple narrow tapes, the surface of the prism can be pasted more evenly, avoiding uneven force during manual pasting, and effectively preventing the generation of bubbles during the pasting process, so that the detection standard is in a stable range, so that the detection result of the film adhesion by the detection instrument is more reliable, and when multiple tapes are used, the forces on each tape are independent of each other, avoiding the damage to the lens surface caused by the concentration of force in a certain place when the wide tape is torn, thereby making the film adhesion detection more protective to the optical lens surface.

[0016] Preferably, the height of the roller surface is greater than the height of the roller groove, so that the tape between the two sets of transition rollers can completely cover one side of the prism after continuously experiencing two states in the up and down directions. The roller surface is set as an arc structure, which not only keeps the tape aligned with the roller surface to avoid adhesion caused by the deviation of the tape, thereby ensuring the detection efficiency; but also increases its own surface area. Under the premise of the unchanged roller surface height, the width of the tape that can be used is wider, thereby increasing the applicability of the instrument.

[0017] Preferably, the buffer roller group includes a bearing seat, a third bearing, a vertical shaft, a roller gear, a roller rack, a buffer roller shaft, a fourth bearing and a buffer roller wheel. The bearing seat is installed above the frame, the vertical shaft is inserted into the bearing seat for rotational connection, the roller gear is installed on the vertical shaft, the roller rack is installed on the roller group fixing frame, and the roller rack is meshed with the roller gear, the buffer roller shaft is installed between two roller gears, and the buffer roller wheel wraps the buffer roller shaft.

[0018] Through the above scheme, the roller group fixing frame moves to the left, so that the tape between the two groups of transition roller groups can stick to the prism at the same time (it moves to the left for a distance before sticking, so that the cross bar can come to the top of the push plate in advance to determine whether the tape goes up, so as to avoid the tape changing its own up and down position after sticking to the prism), and drives the roller gear to rotate through the roller rack connected to itself, so that the buffer roller wheel rotates to the right, thereby loosening the tape; the process of tearing off the tape is the opposite.

[0019] Preferably, the vertical shaft includes a shaft body and a shaft ring from the inside to the outside, the shaft ring is rotatably connected to the shaft body, and the shaft ring contacts the tape during the process of bonding the prism with the tape to reduce the friction resistance between the tape and the vertical shaft when the tape is relaxed, so that the tape can switch freely between relaxed and tightened states, thereby enhancing the adaptability of the buffer module to different working conditions.

[0020] Preferably, during detection, the edge or surface of the prism faces right, and the front and rear symmetric planes of the prism itself coincide with the symmetric planes of the two transition roller groups.

[0021] Through the above scheme, on the one hand, the amount of fit between the two side surfaces connected by the prism edges is ensured to be consistent, so that the displacement of the roller group fixing frame to the left is reduced as much as possible, thereby reducing the energy consumption caused by the frequent reciprocating of the roller group fixing frame; on the other hand, the tape between the two sets of transition roller groups is avoided from breaking at the end with greater force due to uneven force on both sides.

[0022] The clamping module must not only maintain the clamping of the prism, but also be able to rotate synchronously with the prism. It can be seen that there are many ways to achieve the above two functions at the same time. For example, the electric cylinder is connected to a bearing installed above the lens fixing frame so that the cylinder body of the electric cylinder can rotate and control its extension rod to press against the upper end surface of the prism. Compared with this solution, the above solution has obvious shortcomings: first, compared with the bearing installed at the lower end of the electric cylinder extension rod, the use of a bearing to connect the electric cylinder body will increase the bearing load, thereby increasing the purchase cost of the bearing; second, the electric cylinder needs to be connected to a power supply, and when the electric cylinder body is rotatably connected to the lens fixing frame, the difficulty and cost of wiring (for example, using a brush device) will be greatly increased.

[0023] Preferably, the clamping module comprises an electric cylinder, a fifth bearing, and a chuck, wherein the electric cylinder is fixedly connected to the upper part of the lens fixing frame for convenient wiring. The inner ring of the fifth bearing is nested in the lower end of the extension rod of the electric cylinder, and the fifth bearing can bear a large axial force. The extension rod of the electric cylinder does not completely penetrate the fifth bearing, so that the lower end surface of the outer ring of the fifth bearing presses against the chuck, and the chuck is nested in the outer ring of the fifth bearing and connected below the fifth bearing.

[0024] Through the above solution, the electric cylinder can make the chuck connected to the outer ring of the bearing rotate around the electric cylinder while clamping the prism with the help of the fifth bearing.

[0025] A detection method comprises the following steps:

[0026] S1. Clamp the prism; first place the prism in the positioning ring, then control the electric cylinder to extend its rod downward to clamp the prism, and then rotate the positioning ring to make the positioning block close to the lower end of the prism;

[0027] S2. Station switching; the cutting motor is started, and the cutting shaft is driven by the cutting transmission so that the edge of the prism to be tested is facing the tape, and the pasted prism is removed from the lens holder and its surface finish is tested, and then the prism to be tested is clamped again according to the method in S1;

[0028] S3. Paste the prism once; the transition roller group is moved to the left by the roller frame driving module so that the prism contacts the tape between the two transition roller groups, and at the same time, the roller rack on the roller frame driving module drives the roller gear to rotate the buffer roller group to the right, thereby gradually loosening the tape for use at the pasting site. After pasting is completed, the roller frame driving module drives the transition roller group to the right to separate the tape from the prism, and at the same time, the roller rack drives the roller gear to rotate the buffer roller group to the left, thereby gradually tightening the tape to prevent the detached tape from sticking to each other. Then, the receiving roller group rotates to recycle the pasted tape and leave a sufficient length of unpasted tape for the next pasting;

[0029] S4. Secondary pasting of the prism; the main shaft is driven by the rotating motor to rotate 120°, so that the other adjacent edge of the prism is facing the tape, and at the same time, the push plate fixed to the main shaft also rotates 120°, so that its convex surface is just facing the tape, and then the transition roller group moves the tape to paste the prism on the left. Unlike S3, the cross bar of the transition roller group does not contact the upper end surface of the push plate, so that the transition roller shaft movably connected to the support rod moves downward for a distance, so that the tape between the two transition roller groups moves downward in the same way, so as to paste the unpasted surface of the prism and complete the pasting of the unpasted area on the pasting surface in S3, and then the transition roller group is reset as in S3;

[0030] S5. Paste the prism three times; the main shaft is driven by the rotating motor to rotate 60° again in the same direction, so that one side of the prism faces the tape, and accordingly, the push plate also rotates 60°, so that when the transition roller group moves to the left, the lower end of the crossbar is supported by the convex surface, so that the tape between the two transition roller groups does not go down as in S4, and then the pasting of the unpasted area on the surface is completed, and then the transition roller group is reset;

[0031] S6. Paste the prism four times; the main shaft is driven by the rotating motor to rotate 120 degrees again in the same direction. At this time, the convex surface of the push plate is facing the tape again, and the tape between the two sets of transition rollers also moves downward again to complete the pasting of the remaining unpasted areas on the surface of the prism. Then, the transition roller group is reset, and the main shaft rotates 60 degrees again to complete its own reset, and then repeats steps S2 to S6.

[0032] Through the above method, multiple narrow tapes are used to stick the prism surface at the same time, and the sticking is only performed four times in one test. While the narrow tape is used to ensure the quality of the test, the sticking efficiency is ensured by a small number of sticking times.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention arranges multiple rows of narrow tapes in the same plane through two groups of transition rollers, and during the displacement of the transition rollers, drives the multiple rows of narrow tapes to be simultaneously pasted on the surface of the prism, so that the narrow tapes are evenly pasted on the prism, thereby ensuring the detection quality and having a similar effect of efficient pasting detection with wide tapes.

[0035] 2. In the present invention, while the roller group fixing frame moves to the left to stick the prism, the roller gear and the roller rack cooperate to relax the tape to form a supply of tape to the sticking place, reducing the stress of the tape, thereby avoiding the influence of tape breakage on the detection efficiency.

[0036] 3. In the present invention, the position of the prism is associated with the push plate. Before the roller group fixing frame moves to the left and the tape contacts the prism, the push plate is used to make the tape have two positions in the upper and lower directions. In a complete detection process, the tape is continuously switched between the two positions. Combined with the detection method, the tape can complete the pasting detection of the entire area of ​​the prism in four pastings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall isometric structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the overall isometric cross-sectional structure of the present invention;

[0039] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of part G;

[0040] Figure 4 It is a schematic diagram of the structure of the transition roller group of the present invention;

[0041] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the H part;

[0042] Figure 6 It is a schematic diagram of the structure of the buffer roller group of the present invention;

[0043] Figure 7 This is a schematic diagram of the state where the adhesive tape of the present invention is adhered to the upper part of the prism;

[0044] Figure 8 This is a schematic diagram of the state where the adhesive tape of the present invention is adhered to the lower part of the prism;

[0045] Fig. 9 It is a schematic diagram of the working principle of the present invention.

[0046] In the figure: 1. tape; 2. rack; 3. station switching module; 31. cutting motor; 32. cutting transmission; 321. driving shaft; 322. sixth bearing; 323. driving gear; 324. driven gear; 325. seventh bearing; 33. cutting shaft; 4. lens fixing frame; 5. rotating module; 51. rotating motor; 52. main shaft; 53. first bearing; 54. push plate; 541. plane; 542. convex surface; 543. arc surface; 55. flexible ring; 56. positioning ring; 561. ring body; 562. positioning block; 563. convex block; 6. clamping module; 61. electric cylinder; 62. fifth bearing; 63. chuck; 7. transition roller group; 71. support rod ;72, transition roller shaft;721, cross bar;722, connecting plate;73, second bearing;74, transition roller;741, roller body;742, roller table;743, roller groove;8, buffer roller group;81, bearing seat;82, third bearing;83, vertical shaft;831, shaft body;832, shaft ring;84, roller gear;85, roller rack;86, buffer roller shaft;87, fourth bearing;88, buffer roller;9, receiving roller group;91, receiving motor;10, roller group fixing frame;11, unloading roller group;111, brake;12, roller frame drive module;121, slider;122, slide rail;123, lead screw;124, roller frame motor;13, prism. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 9 The present invention provides an optical lens detection instrument and a detection method thereof, and the technical solution is as follows:

[0049] An optical lens inspection instrument is used in conjunction with an adhesive tape 1, comprising a frame 2, a station switching module 3, a lens fixing frame 4, a rotating module 5, a clamping module 6, a transition roller group 7, a buffer roller group 8, a receiving roller group 9, a roller group fixing frame 10, a discharging roller group 11, and a roller frame driving module 12. The adhesive tape 1 is provided with a plurality of strips, and the frame 2 is divided into an upper part and a lower part. The lower frame 2 is a box structure, and for the convenience of installation, the box is designed to be split front and back. The upper frame 2 is welded to the lower frame 2, and is mainly used to support the roller group fixing frame 10 and the roller frame driving module 12. The station switching module 3 includes a cutting motor 31, a cutting transmission 32 and a cutting shaft 33. The cutting motor 31 is installed on the right side of the frame 2. The cutting transmission 32 includes a driving shaft 321, a sixth bearing 322, a driving tooth 323, a driven tooth 324, and a seventh bearing 325. The driving shaft 321 and the output shaft of the cutting motor 31 are connected by a coupling. The outer ring of the sixth bearing 322 is embedded in the frame 2, and the inner ring is embedded in the driving shaft 321. In order to facilitate the arrangement of the cutting motor 31, a pair of bevel gears are selected for the driving tooth 323 and the driven tooth 324. The driving gear 323 is key-connected to the left end of the driving shaft 321, the driven gear 324 is meshed above the driving gear 323, the outer ring of the seventh bearing 325 is embedded in the frame 2, the cutting shaft 33 is inserted into the inner ring of the seventh bearing 325, and is key-connected to the driven gear 324, the number of the lens fixing frames 4 is four, and the four lens fixing frames 4 are circumferentially arrayed on the circumferential surface of the cutting shaft 33, the rotating module 5 and the clamping module 6 are respectively arranged at the bottom and top of the lens fixing frame 4, the rotating module 5 is placed with a prism 13, the roller group fixing frame 10 is slidably connected to the upper right of the frame 2, and the transition roller group 7. The receiving roller group 9 and the unloading roller group 11 are installed on the roller group fixing frame 10 from left to right. The receiving roller group 9 is driven by the receiving motor 91. The receiving motor 91 has a self-locking function when stopped. A brake 111 is arranged in the unloading roller group 11. The brake 111 is arranged between the roller wheel and the roller shaft. When the receiving motor 91 is working, the brake 111 does not brake, and the unloading roller group 11 works normally. When the receiving motor 91 stops, the brake 111 stops the rotation of the unloading roller group 11, so that the receiving roller group 9 and the tape 1 on the unloading roller group 11 will not be affected by the buffer roller group 8. The buffer roller group 8 is connected to the frame 2, and the transition roller group 7, the receiving roller group 9, the unwinding roller group 11, and the buffer roller group 8 are all in contact with the tape 1. The roller frame driving module 12 includes a slider 121, a slide rail 122, a lead screw 123, and a roller frame motor 124. The slider 121 is threadedly connected to the lower end surface of the lens fixing frame 4, the slide rail 122 is threadedly connected to the upper end surface of the upper frame 2, and the slide rail 122 is inserted into the slider 121. The left end of the lead screw 123 is screwed into the connection hole reserved on the roller group fixing frame 10, and the output shaft of the roller frame motor 124 is connected to the right end of the lead screw 123 through a coupling for transmission.

[0050] The four lens fixing frames 4 revolve around the central axis of the cutting axis 33, the prism 13 is clamped by the clamping module 6 and rotated by the rotating module 5, the transition roller group 7 slides left and right with the roller group fixing frame 10 and slides up and down under the action of the rotating module 5, and the buffer roller group 8 slides left and right with the roller group fixing frame 10 to loosen or tighten the tape 1.

[0051] As an embodiment of the present invention, refer to Figures 1 to 5The rotating module 5 includes a rotating motor 51, a main shaft 52, a first bearing 53, a push plate 54, a flexible ring 55 and a positioning ring 56. The rotating motor 51 is connected to the bottom of the lens fixing frame 4. The main shaft 52 is connected to the output shaft of the rotating motor 51. The first bearing 53, the push plate 54, the flexible ring 55 and the positioning ring 56 are nested on the main shaft 52 from bottom to top. The positioning ring 56 includes a ring body 561, a positioning block 562, and a convex block 563. The ring body 561 is gap-connected with the main shaft 52. The number of the positioning blocks 562 is three, and they are welded at equal angles on the circumference of the ring body 561. The contour of the positioning block 562 is irregular. During processing, two opposite curved surfaces can be processed first, and then the curved surface close to the inner side can be processed. When in use, it should be ensured that the positioning block 562 can be smoothly rotated to the lower end of the prism 13. The operator can use the positioning ring 56 to quickly place the prism 13 in the correct position, thereby improving the efficiency of detection. The protrusion 563 is welded inside the ring body 561, and there are three protrusions 563, which are respectively aligned with the three positioning blocks 562. The protrusion 563 cooperates with the groove opened on the main shaft 52 to limit the rotation of the positioning ring 56. After the clamping module 6 clamps the prism 13, the positioning ring 56 can be rotated to tighten the lower end surface of the prism 13, so that the clamping of the prism 13 on the lens fixing part is more stable, thereby making the detection result more reliable. The upper end surface of the push plate 54 includes a plane 541 and a convex surface 542 from the middle to the side, and an arc surface 543 is set between the plane 541 and the convex surface 542. The transition roller group 7 includes a support rod 71, a transition roller shaft 72, a second bearing 73 and a transition roller wheel 74. The support rod 71 is connected to the left side of the roller group fixing frame 10. There is a long waist hole on the left side of the support rod 71. The upper and lower ends of the transition roller shaft 72 each have a section, which forms a matching structure with the long waist hole of the support rod 71, and the middle section of the transition roller shaft 72 is a cylinder, and the diameter of the cylinder is not less than the length of the long waist hole, so that after the transition roller shaft 72 is inserted into the support rod 71, it can have a certain displacement space in the up and down directions.The second bearing 73 is nested on the transition roller shaft 72. A cross bar 721 is arranged below the transition roller shaft 72. A connecting plate 722 is connected between the two cross bars 721. The minimum spacing value of the two cross bars 721 is greater than the sum of the width values ​​of the vertical projections of the convex surface 542 and the arc surface 543 on the upper end surface of the push plate 54. The lower end surface of the cross bar 721 is located between the plane 541 and the convex surface 542. Therefore, before the transition roller group 7 moves to the left so that the tape 1 is bonded to the prism 13, the tape 1 between the two transition roller groups 7 has two states in the upper and lower directions: 1. The convex surface 542 faces the adhesive tape 1 between the two transition roller groups 7. At this time, the lower end surface of the cross bar 721 does not contact the upper end surface of the push plate 54, and the adhesive tape 1 between the two transition roller groups 7 remains in one position; 2. The convex surface 542 shifts with the rotation of the main shaft 52. At this time, before the adhesive tape 1 moves leftward and contacts the prism 13, the lower end surface of the cross bar 721 will first slide onto the convex surface 542 with the help of the arc surface 543, and be lifted by the convex surface 542, so that the adhesive tape 1 between the two transition roller groups 7 moves up a distance with the help of the push plate 54, so that the adhesive tape 1 between the two transition roller groups 7 rises to another position. With these two states, the adhesive tape 1 can complete the full coverage of one side of the prism 13 by pasting twice.

[0052] As an embodiment of the present invention, refer to Figure 4 and Figure 5 The transition roller 74 includes a roller body 741, a roller table 742 and a roller groove 743. The roller body 741 is embedded in the outer ring of the second bearing 73. The roller table 742 and the roller groove 743 are arranged alternately on the circumference of the roller body 741. The height of the roller table 742 is greater than the height of the roller groove 743, and the height of the roller groove 743 is not greater than the distance between the lower end surface of the unlifted cross bar 721 and the convex surface 542, so that the tape 1 between the two sets of transition roller groups 7 can completely cover one side of the prism 13 after continuously experiencing the two states in the up and down directions. The roller table 742 is set to an arc structure, which not only keeps the tape 1 aligned with the roller table 742, avoiding adhesion caused by the deviation of the tape 1, thereby ensuring the detection efficiency; but also increases its own surface area. Under the premise that the height of the roller table 742 remains unchanged, the width of the tape 1 that can be used is wider, thereby increasing the applicability of the instrument. Multiple tapes 1 are wound around multiple rollers 742 respectively, which can achieve more uniform pasting on the surface of the prism 13, avoid uneven force during manual pasting, and effectively prevent the generation of bubbles during pasting, so that the detection standard is in a stable range, so that the detection result of the film adhesion by the detection instrument is more reliable. In addition, when multiple tapes 1 are used, the force of each tape 1 is independent of each other when it is torn apart, avoiding the concentration of force at a certain point when the wide tape 1 is torn apart, which damages the lens surface, thereby making the detection of film adhesion more protective for the optical lens surface. When processing the transition roller 74, a cylindrical blank with a diameter larger than the maximum diameter of the roller 742 should be selected, and a continuous arc structure should be first machined using a lathe, and then the roller groove 743 should be machined.

[0053] As an embodiment of the present invention, refer to Figure 6 The buffer roller group 8 includes a bearing seat 81, a third bearing 82, a vertical shaft 83, a roller gear 84, a roller rack 85, a buffer roller shaft 86, a fourth bearing 87 and a buffer roller wheel 88. The bearing seat 81 is installed above the frame 2, and the third bearing 82 is embedded in the bearing seat 81. The vertical shaft 83 includes a shaft body 831 and a shaft ring 832 from the inside to the outside. The shaft body 831 is inserted into the inner ring of the third bearing 82, and the shaft ring 832 is rotatably connected to the shaft body 831. In the process of the tape 1 bonding the prism 13, the shaft ring 832 contacts the tape 1 to reduce the friction resistance between the tape 1 and the vertical shaft 83 when it is relaxed, so that the tape 1 can switch freely between the relaxed and tightened states, that is, the adaptability of the buffer module to different working conditions is enhanced. The roller gear 84 is installed on the shaft 831, the roller rack 85 is installed on the roller group fixing frame 10, and the roller rack 85 is meshed with the roller gear 84, the buffer roller shaft 86 is installed between the two roller gears 84, the fourth bearing 87 is nested in the buffer roller shaft 86, and the buffer roller wheel 88 wraps the fourth bearing 87, so that the roller group fixing frame 10 moves to the left, so that the tape 1 between the two groups of transition roller groups 7 can be bonded to the prism 13 (before bonding, it moves to the left for a distance so that the cross bar 721 can come to the top of the push plate 54 in advance to determine whether the tape 1 goes up, so as to avoid the tape 1 changing its own up and down position after bonding the prism 13), and the roller gear 84 is driven to rotate forward through the roller rack 85 connected to itself, so that the buffer roller wheel 88 rotates to the right, thereby loosening the tape 1; when the tape 1 is torn off, the roller group fixing frame 10 moves to the right, driving the roller gear 84 to rotate reversely, so that the buffer roller wheel 88 rotates to the left, thereby tightening the tape 1.

[0054] As an embodiment of the present invention, refer to Figure 7 and Figure 8 During the inspection, the edge or face of the prism 13 faces right, and the front and rear symmetric planes of the prism 13 coincide with the symmetric planes of the two transition roller groups 7. On the one hand, the bonding amount of the two side surfaces connected by the edge of the prism 13 is ensured to be consistent, so that the displacement of the roller group fixing frame 10 to the left is reduced as much as possible, thereby reducing the energy consumption caused by the frequent reciprocation of the roller group fixing frame 10; on the other hand, the adhesive tape 1 between the two transition roller groups 7 is prevented from breaking at the end with greater force due to uneven force on both sides.

[0055] As an embodiment of the present invention, refer to Figure 2The clamping module 6 includes an electric cylinder 61, a fifth bearing 62, and a chuck 63. The electric cylinder 61 is fixedly connected to the top of the lens fixing frame 4 for easy wiring. The inner ring of the fifth bearing 62 is nested in the lower end of the extension rod of the electric cylinder 61, and the fifth bearing 62 can bear a large axial force, such as using an angular contact bearing. The extension rod of the electric cylinder 61 does not completely penetrate the fifth bearing 62, so the extension rod is made into a stepped shaft structure. During installation, the shaft section with a small shaft diameter is inserted into the inner ring of the fifth bearing 62, so that the lower end surface of the outer ring of the fifth bearing 62 presses against the chuck 63. The chuck 63 is nested in the outer ring of the fifth bearing 62 and connected to the bottom of the fifth bearing 62, so that the electric cylinder 61 can use the fifth bearing 62 to clamp the prism 13 while the chuck 63 connected to the outer ring of the bearing can rotate around the electric cylinder 61.

[0056] Working principle: Refer to Fig. 9 , the prism rotates four times during one detection process, and each time its edges or faces are pasted and separated from the tape group. The process is as follows: the A edge is facing the tape group, and the tape moves to the left to paste the D and E surfaces. In order to ensure uniform pasting, the tape group is composed of multiple rows of narrow tapes on the same plane, so the pasting detection of the tape group on the D and E surfaces is not complete. It is not a bad idea to record the pasted area in the above process as the upper part, and then the remaining lower part needs to be pasted: the tape group is reset, the prism rotates 120° clockwise, so that the B edge faces the tape group, and the tape group moves to the left again to paste the E and F surfaces. In this process, the tape group will produce a certain distance of downward movement before contacting the prism under the action of the push plate 54 in the present invention, so the pasting area is the lower part of the E and F surfaces. In this way, the upper detection of the D surface, the entire detection of the E surface, and the lower detection of the F surface are completed. Then, the remaining lower portion of the D surface and upper portion of the F surface are inspected: the tape group is reset, the prism continues to rotate 60° clockwise so that the F surface faces the tape group, and the tape group moves left to stick to the F surface. During this process, the tape group will not move downward under the action of the push plate 54, so the inspection of the upper portion of the F surface is completed; then, the tape group is reset, the prism continues to rotate 120° clockwise so that the D surface faces the tape group, and the tape group moves left to stick to the lower portion of the D surface.

[0057] Specifically, the prism 13 is clamped: first, the prism 13 is placed in the positioning ring 56, and then the electric cylinder 61 is controlled to extend its own rod downward, thereby clamping the prism 13, and then the positioning ring 56 is rotated to make the positioning block 562 close to the lower end of the prism 13;

[0058] Station switching: the cutting motor 31 is started, and the cutting shaft 33 is driven by the cutting transmission 32, so that the edge of the prism 13 to be tested is facing the tape 1, and the pasted prism 13 is taken out from the lens fixing frame 4, and its surface finish is tested, and then the prism 13 to be tested is clamped again according to the method in "Clamping the prism 13";

[0059] Pasting the prism 13 once: the transition roller group 7 is moved to the left by the roller frame driving module 12, so that the prism 13 contacts the tape 1 between the two transition roller groups 7, and at the same time, the roller rack 85 on the roller frame driving module 12 drives the roller gear 84 to rotate the buffer roller group 8 to the right, thereby gradually loosening the tape 1 for use at the pasting site. After pasting is completed, the roller frame driving module 12 drives the transition roller group 7 to the right to separate the tape 1 from the prism 13, and at the same time, the roller rack 85 drives the roller gear 84 to rotate the buffer roller group 8 to the left, thereby gradually tightening the tape 1 to prevent the detached tapes 1 from sticking to each other. Then, the receiving roller group 9 rotates to recycle the pasted tape 1 and leave a sufficient length of unpasted tape 1 for the next pasting.

[0060] Secondary pasting of prism 13: spindle 52 is driven by rotating motor 51 to rotate 120°, so that the other adjacent edge of prism 13 is facing tape 1, and push plate 54 fixedly connected to spindle 52 also rotates 120°, so that its convex surface 542 is just facing tape 1, and then transition roller group 7 moves leftward to make tape 1 pasted to prism 13. Different from “single pasting of prism 13”, cross bar 721 of transition roller group 7 does not contact with the upper end surface of push plate 54, so that transition roller shaft 72 movably connected to support rod 71 moves downward for a certain distance, so that tape 1 between two groups of transition roller groups 7 moves downward in the same way, so as to paste the unpasted surface of prism 13 and complete the pasting of the unpasted area on the pasting surface in “single pasting of prism 13” at the same time, and then transition roller group 7 is reset as in “single pasting of prism 13”;

[0061] Three-time pasting of the prism 13: the main shaft 52 is driven by the rotating motor 51 to rotate 60° again in the same direction, so that one side of the prism 13 faces the adhesive tape 1. Correspondingly, the push plate 54 also rotates 60°, so that when the transition roller group 7 moves to the left, the lower end of the cross bar 721 is supported by the convex surface 542, so that the adhesive tape 1 between the two transition roller groups 7 does not move downward as in the "secondary pasting of the prism 13", thereby completing the pasting of the unpasted area on the side, and then the transition roller group 7 is reset;

[0062] Pasting the prism 13 for the fourth time: the main shaft 52 is driven by the rotating motor 51 to rotate 120 degrees again in the same direction. At this time, the convex surface 542 of the push plate 54 is facing the tape 1 again, and the tape 1 between the two sets of transition roller groups 7 also goes down again, completing the pasting of the remaining unpasted area on the surface of the prism 13. Then, the transition roller group 7 is reset, and the main shaft 52 rotates 60 degrees again to complete its own reset, and then repeats the steps between "station switching" and "pasting the prism 13 for the fourth time".

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical lens testing instrument is used in conjunction with an adhesive tape (1), characterized in that: The machine also comprises a frame (2), a station switching module (3), a lens fixing frame (4), a rotating module (5), a clamping module (6), a transition roller group (7), a buffer roller group (8), a receiving roller group (9), a roller group fixing frame (10), a discharging roller group (11), and a roller frame driving module (12). The station switching module (3) comprises a cutting position motor (31), a cutting position transmission (32) and a cutting position rotating shaft (33). The cutting position rotating shaft (33) is installed on the upper left of the frame (2). The fixed frame (4) is circumferentially arrayed on the circumferential surface of the cutting position rotating shaft (33); the rotating module (5) and the clamping module (6) are respectively arranged below and above the lens fixed frame (4); a prism (13) is placed on the rotating module (5); the roller group fixed frame (10) is slidably connected to the upper right of the frame (2); the transition roller group (7), the receiving roller group (9) and the unloading roller group (11) are installed on the roller group fixed frame (10) from left to right; and the buffer roller group (8) is connected to the frame (2); The plurality of lens fixing frames (4) revolve around the central axis of the shearing shaft (33); the prism (13) is clamped by the clamping module (6) and rotates under the action of the rotating module (5); the transition roller group (7) slides left and right with the roller group fixing frame (10) and slides up and down under the action of the rotating module (5); the buffer roller group (8) slides left and right with the roller group fixing frame (10) to loosen or tighten the tape (1).

2. An optical lens testing instrument according to claim 1, characterized in that: The rotating module (5) comprises a rotating motor (51), a main shaft (52), a first bearing (53), a push plate (54), a flexible ring (55) and a positioning ring (56); the rotating motor (51) is connected to the bottom of the lens fixing frame (4); the main shaft (52) is connected to the output shaft of the rotating motor (51); the first bearing (53), the push plate (54), the flexible ring (55) and the positioning ring (56) are nested on the main shaft (52) from bottom to top; the positioning ring (56) comprises a ring body (561), a positioning block (562) and a protrusion (563); the ring body (561) is gap-connected with the main shaft (52); the number of the positioning blocks (562) is three and they are distributed at equal angles on the circumference of the ring body (561); the protrusions (563) are arranged inside the ring body (561); the number of the protrusions (563) is also three and they are respectively aligned with the three positioning blocks (562).

3. An optical lens testing instrument according to claim 2, characterized in that: The upper end surface of the push plate (54) includes a plane (541) and a convex surface (542) from the middle to the side, and an arc surface (543) is provided between the plane (541) and the convex surface (542). The transition roller group (7) includes a support rod (71), a transition roller shaft (72), a second bearing (73) and a transition roller wheel (74). The support rod (71) is connected to the left side of the roller group fixing frame (10), and the transition roller shaft (72) is slidably connected to the support rod (71). The second bearing (73) is nested on the transition roller shaft (72); a cross bar (721) is arranged below the transition roller shaft (72); a connecting plate (722) is connected between two cross bars (721); and a minimum spacing value between the two cross bars (721) is greater than the sum of the width values ​​of the vertical projections of the convex surface (542) and the arc surface (543) on the upper end surface of the push plate (54); and the lower end surface of the cross bar (721) is located between the plane (541) and the convex surface (542).

4. An optical lens testing instrument according to claim 3, characterized in that: The transition roller (74) comprises a roller body (741), a roller platform (742) and a roller groove (743); the roller body (741) is nested in the outer ring of the second bearing (73); the roller platform (742) and the roller groove (743) are arranged alternately on the circumference of the roller body (741); and the plurality of adhesive tapes (1) are respectively wound on the plurality of roller platforms (742).

5. The optical lens testing instrument according to claim 4, characterized in that: The height of the roller platform (742) is greater than the height of the roller groove (743), and the roller platform (742) is configured as an arc-shaped structure.

6. The optical lens testing instrument according to claim 1, characterized in that: The buffer roller group (8) comprises a bearing seat (81), a third bearing (82), a vertical shaft (83), a roller gear (84), a roller rack (85), a buffer roller shaft (86), a fourth bearing (87) and a buffer roller wheel (88); the bearing seat (81) is mounted above the frame (2); the vertical shaft (83) is inserted into the bearing seat (81) for rotational connection; the roller gear (84) is mounted on the vertical shaft (83); the roller rack (85) is mounted on a roller group fixing frame (10), and the roller rack (85) is meshed with the roller gear (84); the buffer roller shaft (86) is mounted between two roller gears (84); and the buffer roller wheel (88) wraps the buffer roller shaft (86).

7. An optical lens testing instrument according to claim 6, characterized in that: The vertical shaft (83) comprises a shaft body (831) and a shaft ring (832) from the inside to the outside, and the shaft ring (832) is rotatably connected to the shaft body (831).

8. The optical lens testing instrument according to claim 1, characterized in that: During detection, the edge or face of the prism (13) faces rightward, and the front and rear symmetric planes of the prism (13) itself coincide with the symmetric planes of the two transition roller groups (7).

9. The optical lens testing instrument according to claim 1, characterized in that: The clamping module (6) comprises an electric cylinder (61), a fifth bearing (62), and a chuck (63); the electric cylinder (61) is connected above the lens fixing frame (4); the inner ring of the fifth bearing (62) is nested in the lower end of the extension rod of the electric cylinder (61); the extension rod of the electric cylinder (61) does not completely penetrate the fifth bearing (62); and the chuck (63) is nested in the outer ring of the fifth bearing (62) and is connected below the fifth bearing (62).

10. A detection method, applicable to the optical lens detection instrument according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Clamp the prism (13); first place the prism (13) in the positioning ring (56), then control the electric cylinder (61) to extend its rod downward, thereby clamping the prism (13), and then rotate the positioning ring (56) so that the positioning block (562) is pressed against the lower end of the prism (13); S2. Station switching; the cutting motor (31) is started, and the cutting shaft (33) is driven by the cutting transmission (32) so that the edge of the prism (13) to be tested is facing the tape (1), and the pasted prism (13) is taken out from the lens holder (4), and its surface finish is tested, and then the prism (13) to be tested is clamped again according to the method in S1; S3. Paste the prism (13) once; the transition roller group (7) is moved to the left by the roller frame driving module (12) so that the prism (13) contacts the adhesive tape (1) between the two transition roller groups (7); at the same time, the roller rack (85) on the roller frame driving module (12) drives the roller gear (84) to rotate the buffer roller group (8) to the right, thereby gradually loosening the adhesive tape (1) for use at the pasting site; after pasting is completed, the roller frame driving module (12) drives the transition roller group (7) to the right to separate the adhesive tape (1) from the prism (13); at the same time, the roller rack (85) drives the roller gear (84) to rotate the buffer roller group (8) to the left, thereby gradually tightening the adhesive tape (1) to prevent the detached adhesive tape (1) from sticking to each other; then, the receiving roller group (9) rotates to recycle the pasted adhesive tape (1) and leave a sufficient length of unpasted adhesive tape (1) for use next time; S4. The prism (13) is glued for the second time; the main shaft (52) is driven by the rotating motor (51) to rotate 120°, so that the other adjacent edge of the prism (13) is facing the tape (1), and at the same time, the push plate (54) fixedly connected to the main shaft (52) also rotates 120°, so that its convex surface (542) is just facing the tape (1), and then the transition roller group (7) moves to the left to glue the tape (1) to the prism (13). Different from S3, the cross bar (721) of the transition roller group (7) does not contact the upper end surface of the push plate (54), so that the transition roller shaft (72) movably connected to the support rod (71) moves downward for a distance, so that the tape (1) between the two groups of transition roller groups (7) moves downward in the same way, so as to glue the un-glued surface of the prism (13) and complete the gluing of the un-glued area on the gluing surface in S3, and then the transition roller group (7) is reset as in S3; S5. Paste the prism (13) three times; the main shaft (52) is driven by the rotating motor (51) to rotate 60° again in the same direction, so that one side of the prism (13) faces the adhesive tape (1), and accordingly, the push plate (54) also rotates 60°, so that when the transition roller group (7) moves to the left, the lower end of the cross bar (721) is supported by the convex surface (542), so that the adhesive tape (1) between the two transition roller groups (7) does not move downward as in S4, thereby completing the pasting of the unpasted area on the side, and then the transition roller group (7) is reset; S6. Paste the prism (13) four times; the main shaft (52) is driven by the rotating motor (51) to rotate 120 degrees in the same direction again, at which time the convex surface (542) of the push plate (54) is again facing the tape (1), and the tape (1) between the two sets of transition rollers (7) also moves downward again, completing the pasting of the remaining unpasted area on the surface of the prism (13), then, the transition roller set (7) is reset, the main shaft (52) is rotated 60 degrees again to complete its own reset, and then the steps S2 to S6 are repeated.

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