Lens thickness detection device and detection method

Abstract

The invention discloses a lens thickness detection device. The device comprises a workbench; the first conveying belt is arranged at one end of the working table so as to be suitable for conveying a lens to the working table; the displacement mechanism is arranged on the working table and can rotate along the length direction of the working table or on the working table; the piece taking mechanism is arranged on the displacement mechanism, and the piece taking mechanism can move in the width direction of the workbench so as to be suitable for adsorbing the lenses on the first conveying belt; the detection mechanism is arranged on the workbench, the detection mechanism and the displacement mechanism are arranged at an interval, and the detection mechanism can ascend and descend in the vertical direction or can move in the length direction of the workbench so as to be suitable for detecting the thickness of the lens.

Description

Technical Field

[0001] The present invention relates to the technical field of lens detection, and in particular to a lens thickness detection device and a detection method. Background Art

[0002] At present, most lens thickness detection devices on the market use mechanical clamping or contact measurement methods, which have the following shortcomings: first, the clamping device is complicated, inconvenient to operate, and easy to damage the edge of the lens; second, the contact measurement is easily affected by the surface roughness of the lens, resulting in reduced measurement accuracy; third, the degree of automation is low and the detection efficiency is low. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one object of the present invention is to provide a lens thickness detection device, comprising:

[0004] Workbench;

[0005] a first conveyor belt, the first conveyor belt being disposed at one end of the workbench and being suitable for conveying lenses to the workbench;

[0006] A displacement mechanism, which is disposed on the workbench and is rotatable along the length direction of the workbench or on the workbench;

[0007] A pickup mechanism, which is disposed on the displacement mechanism and is movable along the width direction of the workbench to be suitable for adsorbing the lenses on the first conveyor belt;

[0008] A detection mechanism, which is disposed on the workbench and spaced apart from the displacement mechanism, and can be raised and lowered in a vertical direction or moved along a length direction of the workbench to be suitable for detecting the thickness of the lens;

[0009] A second conveyor belt is arranged on the workbench to be suitable for delivering the inspected lenses.

[0010] Preferably, the displacement mechanism comprises:

[0011] A first screw module, which is disposed on the workbench and along the length direction of the workbench;

[0012] A first slide plate, the first slide plate is arranged on the first screw rod module and is slidably connected to the first screw rod module;

[0013] A support frame, the support frame is arranged on the first slide plate;

[0014] An annular groove, the annular groove is arranged on the top of the support frame;

[0015] A rotating cylinder, wherein the rotating cylinder is arranged on the supporting frame;

[0016] The rotating frame is slidably arranged in the annular groove, and the transmission end of the rotating cylinder is connected to the bottom of the rotating frame.

[0017] Preferably, the pickup mechanism includes:

[0018] A first rodless cylinder, which is disposed on the rotating frame and along the length direction of the rotating frame;

[0019] Two first slide rails, which are arranged on the rotating frame and are spaced apart on both sides of the first rodless cylinder;

[0020] The second slide plate is slidably disposed on the two first slide rails, and the bottom of the second slide plate is connected to the driving end of the first rodless cylinder.

[0021] Preferably, the pickup mechanism further includes:

[0022] Two groups of support rods, the two groups of support frames are respectively arranged at two ends of the bottom of the second slide plate;

[0023] Two second rodless cylinders, the two second rodless cylinders are respectively arranged at the bottom of the two groups of support rods;

[0024] Two sets of fixed rods, the two sets of fixed rods are respectively arranged on the transmission ends of the two second rodless cylinders;

[0025] Two third slide plates, the two third slide plates are slidably disposed on the two sets of fixing rods respectively;

[0026] Two suction cups, two groups of suction cups are respectively arranged at the bottom of the two third slide plates;

[0027] Two first gas rods are respectively vertically arranged on the transmission ends of the two second rodless cylinders.

[0028] Preferably, the detection mechanism comprises:

[0029] Two second slide rails, which are arranged on the workbench at intervals and along the length direction of the workbench;

[0030] Two first sliding blocks, wherein the two first sliding blocks are respectively slidably mounted on the two second sliding rails;

[0031] A fixing frame, the fixing frame is arranged on the two first sliding blocks;

[0032] A second gas rod, the second gas rod is arranged on the workbench, and the second gas rod is arranged along the length direction of the workbench;

[0033] A first connecting block, one side of which is connected to the first sliding block, and the other side of which is connected to the transmission end of the second gas rod.

[0034] Preferably, the detection mechanism further comprises:

[0035] Two third gas rods, the two third gas rods are respectively arranged on the fixed frame at intervals, and the transmission ends of the two third gas rods extend into the sliding frame;

[0036] Two air bags, the two air bags are respectively connected to the transmission ends of the two third gas rods;

[0037] Two sponges, the two sponges are respectively arranged at the bottom of the two air bags;

[0038] a first fixing plate, the first fixing plate being vertically arranged in the fixing frame;

[0039] Two third slide rails, the two third slide grooves are arranged at one side of the first fixed plate at intervals, and the two third slide rails are arranged along the vertical direction of the first fixed plate;

[0040] a second sliding block, the second sliding block being slidably disposed on the two third sliding rails;

[0041] a first laser displacement sensor, wherein the first laser displacement sensor is vertically disposed at the bottom of the second sliding block;

[0042] a first cylinder, the first cylinder being disposed on the other side of the first fixing plate;

[0043] A first slide groove, which is disposed in the first fixing plate and is arranged through the first fixing plate in a thickness direction;

[0044] The second connecting block is slidably disposed in the first sliding groove, and two ends of the second connecting block are respectively connected to the transmission end of the first cylinder and the second sliding block.

[0045] Preferably, the detection mechanism further comprises:

[0046] A mounting frame, the mounting frame is arranged on the workbench and between the two second slide rails, and a first through hole is provided in the mounting frame;

[0047] a second fixing plate, the second fixing plate being vertically disposed in the mounting frame;

[0048] Two fourth slide rails, the two fourth slide rails are arranged at one side of the second fixed plate at intervals, and the two fourth slide rails are arranged along the vertical direction of the second fixed plate;

[0049] a third sliding block, the third sliding block being slidably disposed on the two fourth sliding rails;

[0050] a second laser displacement sensor, the second laser displacement sensor being vertically disposed at the bottom of the third sliding block;

[0051] a second cylinder, the second cylinder being disposed on the other side of the second fixing plate;

[0052] A second slide groove, the second slide groove is arranged in the second fixing plate and is arranged through the second fixing plate in a thickness direction;

[0053] a third connecting block, wherein the third connecting block is slidably disposed in the second sliding groove, and two ends of the third connecting block are respectively connected to the transmission end of the second cylinder and the third sliding block;

[0054] A plurality of positioning holes, wherein the plurality of positioning holes are arranged on the mounting frame at equal intervals;

[0055] A plurality of positioning posts, wherein the plurality of positioning posts are respectively disposed in the plurality of positioning holes;

[0056] A fixture seat is arranged on the plurality of positioning posts.

[0057] Preferably, a second through hole is provided in the fixture seat, and the second through hole is arranged in a stepped shape.

[0058] A detection method, the steps are as follows:

[0059] S1. The undetected lens is transported to the workbench via the first conveyor belt;

[0060] S2. Then the first screw module drives the first slide to move in the direction of the first conveyor belt, and then the rotary cylinder drives the rotating frame to rotate in the annular groove so that the side of the first rodless cylinder on the rotating frame faces the first conveyor belt;

[0061] S3. Then, the first rodless cylinder pushes the second slide to move in the direction of the first conveyor belt, so that the second rodless screw at the bottom of the second slide moves to the top of the first conveyor belt;

[0062] S4. Then the second rodless cylinder drives the suction cup to move above the lens on the first conveyor belt, and then the first cylinder pushes the third slide plate downward to allow the suction cup to absorb the lens on the first conveyor belt, and the first rodless cylinder pushes the second slide plate to move toward the fixture seat, so that the suction cup can place the absorbed lens on the fixture seat;

[0063] S5. The second air rod pushes the fixing frame to slide on the second slide rail, so that the first displacement sensor in the fixing frame moves to the top of the fixture seat, and then the two third air cylinders simultaneously push the two air bags and the two sponges against the lens, so that the lens will not be displaced during detection;

[0064] S6. The first cylinder pushes the second slider down in the vertical direction to bring the first laser displacement sensor close to the lens, and then the second cylinder pushes the third slider up in the vertical direction to bring the second laser displacement sensor close to the lens. At this time, the first laser displacement sensor and the second laser displacement sensor start to measure the thickness of the lens;

[0065] S7. After the measurement is completed, the second cylinder drives the fixing frame away from the jig seat, and the suction cup absorbs the lens again, and the first screw module drives the suction cup to move above the second conveyor belt, and finally the suction cup places the lens on the second conveyor belt, and the second conveyor belt takes the lens.

[0066] The above solution of the present invention includes at least the following beneficial effects:

[0067] The first conveyor belt transports the untested lenses to the workbench, and then the displacement mechanism drives the pickup mechanism to move toward the first conveyor belt, and then the pickup mechanism absorbs the lenses on the first conveyor belt, and then the pickup mechanism drives the lenses to move toward the detection mechanism, and puts the lenses on the detection mechanism, and the upper and lower ends of the detection mechanism gradually approach the direction of the lenses, and starts to measure the thickness of the lenses. If the measurement is qualified, the lenses are absorbed again by the pickup mechanism, and then the displacement mechanism drives the pickup mechanism to move to the second conveyor belt, and the pickup mechanism puts the lenses on the second conveyor belt, and the second conveyor belt sends the lenses out, and the lenses that fail the inspection are taken out by the operator;

[0068] The steps of loading, transporting, testing, unloading and the like of the lenses are automatically completed through the first conveyor belt, the displacement mechanism, the pickup mechanism, the testing mechanism and the second conveyor belt, thereby speeding up the efficiency of lens testing.

[0069] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0071] Figure 1 is a schematic structural diagram of a lens thickness detection device provided in an embodiment of the present invention;

[0072] Figure 2 It is a structural schematic diagram of a pickup mechanism provided in an embodiment of the present invention;

[0073] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0074] Figure 4 is a structural schematic diagram of a detection mechanism provided in an embodiment of the present invention;

[0075] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of BB;

[0076] Figure 6 yes Figure 4 Schematic diagram of the cross-sectional structure of CC.

[0077] Description of Figure Numbers:

[0078] 1. Workbench, 2. First conveyor belt, 3. Displacement mechanism, 4. Pick-up mechanism, 5. Detection mechanism, 6. Second conveyor belt;

[0079] 301, first screw rod module, 302, first slide plate, 303, support frame, 305, rotary cylinder, 306, rotating frame;

[0080] 401, a first rodless cylinder, 402, a first slide rail, 403, a second slide plate, 404, a support rod, 405, a second rodless cylinder, 406, a fixing rod, 407, a third slide plate, 408, a suction cup, 409, a first gas rod;

[0081] 501, the second slide rail, 502, the first slider, 503, the fixing frame, 504, the second gas rod, 505, the first connecting block, 506, the third gas rod, 507, the air bag, 508, the sponge, 509, the first fixing plate, 510, the third slide rail, 511, the second slider, 512, the first laser displacement sensor, 513, the first cylinder, 514, the first slide groove, 515, the second connecting block, 516, the mounting frame, 517, the second fixing plate, 518, the fourth slide rail, 519, the third slider, 520, the second laser displacement sensor, 521, the second cylinder, 522, the second slide groove, 523, the third connecting block, 524, the positioning column, 525, the fixture seat.

[0082] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0083] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0084] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0085] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0086] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0088] The lens thickness detection device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0089] See also Figure 1 to Figure 6 In this example, it includes: a workbench 1; a first conveyor belt 2, which is arranged at one end of the workbench 1 to transport the lens to the workbench 1; a displacement mechanism 3, which is arranged on the workbench 1 and can rotate along the length direction of the workbench 1 or on the workbench 1; a pick-up mechanism 4, which is arranged on the displacement mechanism 3 and can move along the width direction of the workbench 1 to be suitable for adsorbing the lens on the first conveyor belt 2; a detection mechanism 5, which is arranged on the workbench 1 and is spaced from the displacement mechanism 3, and can be raised and lowered in the vertical direction or moved along the length direction of the workbench 1 to be suitable for detecting the thickness of the lens; a second conveyor belt 6, which is arranged on the workbench 1 to be suitable for The inspected lenses are sent out; the first conveyor belt 2 transports the uninspected lenses to the workbench 1, and then the displacement mechanism 3 drives the pickup mechanism 4 to move in the direction of the first conveyor belt 2, and then the pickup mechanism 4 absorbs the lenses on the first conveyor belt 2, and then the pickup mechanism 4 drives the lenses to move in the direction of the detection mechanism 5, and puts the lenses on the detection mechanism 5, and the upper and lower ends of the detection mechanism 5 gradually approach the direction of the lenses, and start to measure the thickness of the lenses. If the measurement is qualified, the lenses are absorbed again by the pickup mechanism 4, and then the displacement mechanism 3 drives the pickup mechanism 4 to move to the second conveyor belt 6, and the pickup mechanism 4 puts the lenses on the second conveyor belt 6, and the second conveyor belt 6 sends the lenses out, and the lenses that fail the inspection are taken out by the operator;

[0090] The first conveyor belt 2, the displacement mechanism 3, the pickup mechanism 4, the detection mechanism 5 and the second conveyor belt 6 automatically complete the steps of loading, transporting, detecting and unloading the lenses, thereby speeding up the efficiency of lens detection.

[0091] In this embodiment, the displacement mechanism 3 includes: a first screw module 301, the first screw module 301 is arranged on the workbench 1 and is arranged along the length direction of the workbench 1; a first slide plate 302, the first slide plate 302 is arranged on the first screw module 301 and is slidably connected to the first screw module 301; a support frame 303, the support frame 303 is arranged on the first slide plate 302; an annular groove, the annular groove is arranged on the top of the support frame 303; a rotating cylinder 305, the rotating cylinder 305 is arranged on the support frame 303; a rotating frame 306, the rotating frame 306 is slidably arranged in the annular groove, and rotates The transmission end of the cylinder 305 is connected to the bottom of the rotating frame 306; the picking mechanism 4 is arranged on the rotating frame 306. When the picking mechanism 4 needs to move along the length direction of the workbench 1, the first screw module 301 drives the first slide plate 302 to move along the length direction of the workbench 1, and the picking mechanism 4 follows the movement. When the picking mechanism 4 needs to adjust the angle to adsorb the lens, the rotating cylinder 305 drives the rotating frame 306 to rotate in the annular groove, so that the picking mechanism 4 can rotate the adjustment mechanism, through the first screw module 301 and the rotating cylinder 305, so that the picking mechanism 4 can adsorb the lens.

[0092] In this embodiment, the picking mechanism 4 includes: a first rodless cylinder 401, which is arranged on the rotating frame 306 and along the length direction of the rotating frame 306; two first slide rails 402, which are arranged on the rotating frame 306 and are respectively spaced apart on both sides of the first rodless cylinder 401; a second slide plate 403, which is slidably arranged on the two first slide rails 402, and the bottom of the second slide plate 403 is connected to the transmission end of the first rodless cylinder 401; the first rodless cylinder 401 can drive the second slide plate 403 to move on the two first slide rails 402.

[0093] In this embodiment, the picking mechanism 4 also includes: two groups of support rods 404, two groups of support frames 303 are respectively arranged at the two ends of the bottom of the second slide 403; two second rodless cylinders 405, two second rodless cylinders 405 are respectively arranged at the bottom of the two groups of support rods 404; two groups of fixed rods 406, two groups of fixed rods 406 are respectively arranged on the transmission ends of the two second rodless cylinders 405; two third slides 407, two third slides 407 are respectively slidably arranged on the two groups of fixed rods 406; two suction cups 408, two groups of suction cups 408 are respectively arranged on the two third slides The bottom of 407; two first air rods 409, the two first air rods 409 are respectively vertically arranged on the transmission ends of the two second rodless cylinders 405; the two rodless cylinders can move in the same direction or in opposite directions at the same time, so that the two suction cups 408 can move in the direction of the first conveyor belt 2 or in the direction of the detection mechanism 5 respectively, and the two first cylinders 513 can respectively push the two third slides 407 to rise or fall in the vertical direction, so that the two suction cups 408 can respectively adsorb the lenses on the first conveyor belt 2 or adsorb the lenses on the detection mechanism 5.

[0094] In this embodiment, the detection mechanism 5 includes: two second slide rails 501, the two second slide rails 501 are arranged on the workbench 1 at intervals and are arranged along the length direction of the workbench 1; two first sliders 502, the two first sliders 502 are slidably mounted on the two second slide rails 501 respectively; a fixing frame 503, the fixing frame 503 is arranged on the two first sliders 502; a second gas rod 504, the second gas rod 504 is arranged on the workbench 1, and the second gas rod 504 is arranged along the length direction of the workbench 1. The first connecting block 505 has one side connected to the first slider 502 and the other side connected to the transmission end of the second gas rod 504. The second gas rod 504 drives the fixing frame 503 to move on the second slide rail 501 through the first connecting block 505, so that the fixing frame 503 can be moved to the top of the fixture seat 525 during the inspection, and the fixing frame 503 can be moved away from the fixture seat 525 after the inspection, so that the lens on the fixture seat 525 can be removed by the picking mechanism 4 or the operator.

[0095] In this embodiment, the detection mechanism 5 also includes: two third gas rods 506, the two third gas rods 506 are respectively arranged on the fixed frame 503 at intervals, and the transmission ends of the two third gas rods 506 extend into the sliding frame; two air bags 507, the two air bags 507 are respectively connected to the transmission ends of the two third gas rods 506; two sponges 508, the two sponges 508 are respectively arranged at the bottom of the two air bags 507; a first fixed plate 509, the first fixed plate 509 is vertically arranged in the fixed frame 503; two third slide rails 510, the two third slide grooves are spaced apart on one side of the first fixed plate 509, and the two third slide rails 510 are arranged along the vertical direction of the first fixed plate 509; a second slider 511, the second slider 511 is slidably arranged on the two third slide rails 510; a first laser displacement sensor 512, the first laser displacement sensor 512 is vertically arranged at the bottom of the second slider 511; a first cylinder 5 13, the first cylinder 513 is arranged on the other side of the first fixed plate 509; the first slide groove 514, the first slide groove 514 is arranged in the first fixed plate 509, and is arranged through along the thickness direction of the first fixed plate 509; the second connecting block 515, the second connecting block 515 is slidably arranged in the first slide groove 514, and the two ends of the second connecting block 515 are respectively connected with the transmission end of the first cylinder 513 and the second slider 511; when the fixing frame 503 moves to the fixture seat 525, firstly, the two third cylinders respectively push the two air bags 507 and the two sponges 508 to descend, so that the sponges 508 are against the upper surface of the lens, so that the lens is fixed in the fixture seat 525 during detection without displacement, and then the first cylinder 513 pushes the second slider 511 to descend on the third slide rail 510, so that the first laser displacement sensor 512 moves to a preset position and measures the thickness of the lens.

[0096] In this embodiment, the detection mechanism 5 further includes: a mounting frame 516, which is arranged on the workbench 1 and between the two second slide rails 501, and a first through hole is provided in the mounting frame 516; a second fixing plate 517, which is vertically arranged in the mounting frame 516; two fourth slide rails 518, which are arranged at intervals on one side of the second fixing plate 517, and the two fourth slide rails 518 are arranged along the vertical direction of the second fixing plate 517; a third slider 519, which is a third slider 519; The three sliders 519 are slidably arranged on the two fourth slide rails 518; the second laser displacement sensor 520 is vertically arranged at the bottom of the third slider 519; the second cylinder 521 is arranged on the other side of the second fixed plate 517; the second slide groove 522 is arranged in the second fixed plate 517 and is arranged through the thickness direction of the second fixed plate 517; the third connecting block 523 is slidably arranged in the second slide groove 522 , and the two ends of the third connecting block 523 are respectively connected to the transmission end of the second cylinder 521 and the third slider 519; multiple positioning holes, multiple positioning holes are arranged on the mounting frame 516 at equal intervals; multiple positioning columns 524, multiple positioning columns 524 are respectively arranged in the multiple positioning holes; a fixture seat 525, the fixture seat 525 is arranged on the multiple positioning columns 524, and a second through hole is arranged in the fixture seat 525, and the second through hole is arranged in a stepped shape; the lens is placed on the fixture seat 525, and then the second cylinder 521 pushes the third slider Block 519 rises in the vertical direction on the fourth slide rail 518 so that the second laser displacement sensor 520 rises to a preset position, and the first laser displacement sensor 512 and the second laser displacement sensor 520 jointly detect the thickness of the lens; if the jig seat 525 needs to be replaced, the operator can insert the corresponding jig seat 525 into the positioning hole through the positioning seat, so that the jig seat 525 will not be offset, shaken, etc. on the mounting frame 516, and a sponge pad can be placed in the second through hole.

[0097] A detection method, the steps are as follows:

[0098] S1. The undetected lens is transported to the workbench 1 via the first conveyor belt 2;

[0099] S2. Then the first screw module 301 drives the first slide 302 to move in the direction of the first conveyor belt 2, and then the rotating cylinder 305 drives the rotating frame 306 to rotate in the annular groove so that the side of the first rodless cylinder 401 on the rotating frame 306 faces the first conveyor belt 2;

[0100] S3. Then, the first rodless cylinder 401 pushes the second slide 403 to move in the direction of the first conveyor belt 2, so that the second rodless screw at the bottom of the second slide 403 moves to the top of the first conveyor belt 2;

[0101] S4. Then the second rodless cylinder 405 drives the suction cup 408 to move above the lens on the first conveyor belt, and then the first cylinder 513 pushes the third slide 407 down to allow the suction cup 408 to absorb the lens on the first conveyor belt 2, and the first rodless cylinder 401 pushes the second slide 403 to move toward the fixture seat 525, so that the suction cup 408 can place the absorbed lens on the fixture seat 525;

[0102] S5. The second air rod 504 pushes the fixing frame 503 to slide on the second slide rail 501, so that the first displacement sensor in the fixing frame 503 moves to the top of the fixture seat 525, and then the two third air cylinders simultaneously push the two air bags 507 and the two sponges 508 against the lens, so that the lens will not be displaced during detection;

[0103] S6. The first cylinder 513 pushes the second slider 511 downward in the vertical direction to bring the first laser displacement sensor 512 closer to the lens, and then the second cylinder 521 pushes the third slider 519 upward in the vertical direction to bring the second laser displacement sensor 520 closer to the lens. At this time, the first laser displacement sensor 512 and the second laser displacement sensor 520 start to measure the thickness of the lens;

[0104] S7. After the measurement is completed, the second cylinder 521 drives the fixing frame 503 away from the fixture seat 525, and the suction cup absorbs the lens again, and the first screw module 301 drives the suction cup 408 to move above the second conveyor belt 6, and finally the suction cup 408 places the lens on the second conveyor belt 6, and the second conveyor belt 6 takes the lens.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0106] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lens thickness detection device, characterized in that: include: Workbench; a first conveyor belt, the first conveyor belt being disposed at one end of the workbench and being suitable for conveying lenses to the workbench; A displacement mechanism, which is disposed on the workbench and is rotatable along the length direction of the workbench or on the workbench; A pickup mechanism, which is disposed on the displacement mechanism and is movable along the width direction of the workbench to be suitable for adsorbing the lenses on the first conveyor belt; A detection mechanism, which is disposed on the workbench and spaced apart from the displacement mechanism, and can be raised and lowered in a vertical direction or moved along a length direction of the workbench to be suitable for detecting the thickness of the lens; A second conveyor belt is arranged on the workbench to be suitable for delivering the inspected lenses.

2. The lens thickness detection device according to claim 1, characterized in that: The displacement mechanism comprises: A first screw module, which is disposed on the workbench and along the length direction of the workbench; A first slide plate, the first slide plate is arranged on the first screw rod module and is slidably connected to the first screw rod module; A support frame, the support frame is arranged on the first slide plate; An annular groove, the annular groove is arranged on the top of the support frame; A rotating cylinder, wherein the rotating cylinder is arranged on the supporting frame; The rotating frame is slidably arranged in the annular groove, and the transmission end of the rotating cylinder is connected to the bottom of the rotating frame.

3. The lens thickness detection device according to claim 2, characterized in that: The pickup mechanism comprises: A first rodless cylinder, which is disposed on the rotating frame and along the length direction of the rotating frame; Two first slide rails, which are arranged on the rotating frame and are spaced apart on both sides of the first rodless cylinder; The second slide plate is slidably disposed on the two first slide rails, and the bottom of the second slide plate is connected to the driving end of the first rodless cylinder.

4. The lens thickness detection device according to claim 3, characterized in that: The pickup mechanism also includes: Two groups of support rods, the two groups of support frames are respectively arranged at two ends of the bottom of the second slide plate; Two second rodless cylinders, the two second rodless cylinders are respectively arranged at the bottom of the two groups of support rods; Two sets of fixed rods, the two sets of fixed rods are respectively arranged on the transmission ends of the two second rodless cylinders; Two third slide plates, the two third slide plates are slidably disposed on the two sets of fixing rods respectively; Two suction cups, two groups of suction cups are respectively arranged at the bottom of the two third slide plates; Two first gas rods are respectively vertically arranged on the transmission ends of the two second rodless cylinders.

5. The lens thickness detection device according to claim 1, characterized in that: The detection mechanism includes: Two second slide rails, which are arranged on the workbench at intervals and along the length direction of the workbench; Two first sliding blocks, wherein the two first sliding blocks are respectively slidably mounted on the two second sliding rails; A fixing frame, the fixing frame is arranged on the two first sliding blocks; A second gas rod, the second gas rod is arranged on the workbench, and the second gas rod is arranged along the length direction of the workbench; A first connecting block, one side of which is connected to the first sliding block, and the other side of which is connected to the transmission end of the second gas rod.

6. The lens thickness detection device according to claim 5, characterized in that: The detection mechanism also includes: Two third gas rods, the two third gas rods are respectively arranged on the fixed frame at intervals, and the transmission ends of the two third gas rods extend into the sliding frame; Two air bags, the two air bags are respectively connected to the transmission ends of the two third gas rods; Two sponges, the two sponges are respectively arranged at the bottom of the two air bags; a first fixing plate, the first fixing plate being vertically arranged in the fixing frame; Two third slide rails, the two third slide grooves are arranged at one side of the first fixed plate at intervals, and the two third slide rails are arranged along the vertical direction of the first fixed plate; a second sliding block, the second sliding block being slidably disposed on the two third sliding rails; a first laser displacement sensor, wherein the first laser displacement sensor is vertically disposed at the bottom of the second sliding block; a first cylinder, the first cylinder being disposed on the other side of the first fixing plate; A first slide groove, which is disposed in the first fixing plate and is arranged through the first fixing plate in a thickness direction; The second connecting block is slidably disposed in the first sliding groove, and two ends of the second connecting block are respectively connected to the transmission end of the first cylinder and the second sliding block.

7. The lens thickness detection device according to claim 6, characterized in that: The detection mechanism also includes: A mounting frame, the mounting frame is arranged on the workbench and between the two second slide rails, and a first through hole is provided in the mounting frame; a second fixing plate, the second fixing plate being vertically disposed in the mounting frame; Two fourth slide rails, the two fourth slide rails are arranged at one side of the second fixed plate at intervals, and the two fourth slide rails are arranged along the vertical direction of the second fixed plate; a third sliding block, the third sliding block being slidably disposed on the two fourth sliding rails; a second laser displacement sensor, the second laser displacement sensor being vertically disposed at the bottom of the third sliding block; a second cylinder, the second cylinder being disposed on the other side of the second fixing plate; A second slide groove, the second slide groove is arranged in the second fixing plate and is arranged through the second fixing plate in a thickness direction; a third connecting block, wherein the third connecting block is slidably disposed in the second sliding groove, and two ends of the third connecting block are respectively connected to the transmission end of the second cylinder and the third sliding block; A plurality of positioning holes, wherein the plurality of positioning holes are arranged on the mounting frame at equal intervals; A plurality of positioning posts, wherein the plurality of positioning posts are respectively disposed in the plurality of positioning holes; A fixture seat is arranged on the plurality of positioning posts.

8. The lens thickness detection device according to claim 7, characterized in that: A second through hole is provided in the fixture seat, and the second through hole is arranged in a stepped shape.

9. A detection method, applied to the lens thickness detection device as claimed in any one of claims 8, characterized in that: Here are the steps: S1. The undetected lens is transported to the workbench via the first conveyor belt; S2. Then the first screw module drives the first slide to move in the direction of the first conveyor belt, and then the rotary cylinder drives the rotating frame to rotate in the annular groove so that the side of the first rodless cylinder on the rotating frame faces the first conveyor belt; S3. Then, the first rodless cylinder pushes the second slide to move in the direction of the first conveyor belt, so that the second rodless screw at the bottom of the second slide moves to the top of the first conveyor belt; S4. Then the second rodless cylinder drives the suction cup to move above the lens on the first conveyor belt, and then the first cylinder pushes the third slide plate downward to allow the suction cup to absorb the lens on the first conveyor belt, and the first rodless cylinder pushes the second slide plate to move toward the fixture seat, so that the suction cup can place the absorbed lens on the fixture seat; S5. The second air rod pushes the fixing frame to slide on the second slide rail, so that the first displacement sensor in the fixing frame moves to the top of the fixture seat, and then the two third air cylinders simultaneously push the two air bags and the two sponges against the lens, so that the lens will not be displaced during detection; S6. The first cylinder pushes the second slider down in the vertical direction to bring the first laser displacement sensor close to the lens, and then the second cylinder pushes the third slider up in the vertical direction to bring the second laser displacement sensor close to the lens. At this time, the first laser displacement sensor and the second laser displacement sensor start to measure the thickness of the lens; S7. After the measurement is completed, the second cylinder drives the fixing frame away from the jig seat, and the suction cup absorbs the lens again, and the first screw module drives the suction cup to move above the second conveyor belt, and finally the suction cup places the lens on the second conveyor belt, and the second conveyor belt takes the lens.

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