Glued lens automatic centering structure

Abstract

The utility model relates to an automatic gluing lens centering structure which comprises a mounting table, and a centering device is mounted on the mounting table. The aligning device comprises a second precise displacement table, the second precise displacement table is mounted on the mounting table, a concentric device and a microscope are further mounted on the mounting table, and a jacking assembly is mounted on the microscope; the concentric device comprises a centering base, a centering side plate is vertically and fixedly installed on the upper portion of the centering base, a centering mechanism and a precise movement assembly are arranged on the centering side plate, and the precise movement assembly can drive the centering mechanism to move up and down. The concentric device further comprises a height assembly, the height assembly comprises a first microdrum and a first air cylinder, the first microdrum is installed on the centering mechanism, the first air cylinder is installed on the centering bottom plate, and a detector is installed at the extending end of the first air cylinder. The aligning device is matched with the concentric device and the microscope to detect the concentricity of the glued lens; the automatic gluing device is more convenient to operate, high in automation degree, capable of improving gluing efficiency and high in reliability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical lens preparation technical field especially relates to a kind of automatic centering structure of cemented lens. BACKGROUND

[0002] In the optical technology field, the centering process of optical lens has extremely important role, manual lens centering operation is carried out in prior art, in the centering process of cemented lens, it is very important to use centering instrument to adjust the concentricity of upper lens and lower lens. Generally, after adjusting the height of microscope to suitable distance and reference, the cemented lens after upper lens and lower lens are cemented and bubble is discharged is placed on the fixture under centering instrument, after fixing lower lens in cemented lens on fixture load position by thumb and index finger, whether cross cursor on display moves to reference point position is observed under microscope by operating needle fixture with another hand, this process is the centering process of cemented lens. When moving to cross cursor point position, centering is completed, UV lamp is opened by foot to fix upper and lower lenses. This process needs manual repeated operation to adjust the concentricity of upper lens and lower lens, and the needle fixture held by hand needs to be very careful to control the force applied to upper lens when slightly adjusting upper lens, and too large force will cause overflow of special glue used between upper lens and lower lens or appearance defect, thereby increasing defective rate and affecting production efficiency, time and effort, not only slow efficiency and high cost, but also ultraviolet lamp long-term irradiation is harmful to human body. And manual operation is subjective and has high error rate, so that product consistency is poor and automation degree is low.

[0003] Now some centering equipment appears on market, which can complete centering, but when replacing different products, due to the size difference of cemented lens, machine adjustment is too cumbersome, the force applied to cemented lens cannot be obtained by operator, the height (thickness) difference before and after replacing different products (cemented lens) cannot be adjusted, the force applied to cemented lens before and after replacing cannot be controlled and kept the same, so that the centering process adjustment method is complicated, and cemented lens concentricity eccentricity phenomenon frequently occurs in centering process due to external factors. In view of the above problems, it is necessary to study a kind of automatic centering structure of cemented lens. UTILITY MODEL CONTENT

[0004] The utility model is directed to solve the above existing many problems, and proposes a kind of automatic centering structure of cemented lens.

[0005] The utility model solves its technical problem by adopting the following technical scheme:

[0006] A kind of automatic centering structure of cemented lens, including installation platform, adjusting center device is installed on installation platform.

[0007] The centering device comprises a second precision displacement table, which is installed on the mounting table, and a zoom light emitting cylinder assembly is installed above the second precision displacement table, the second precision displacement table can move the zoom light emitting cylinder assembly in the front and back and / or left and right directions, and a concentric device and a microscope are also installed on the mounting table, and a top holding assembly is installed on the microscope;

[0008] The concentric device comprises a centering base, a centering side plate is vertically and fixedly installed on the upper part of the centering base, a centering mechanism and a precision motion assembly are arranged on the centering side plate, and the precision motion assembly can drive the centering mechanism to move up and down; the concentric device further comprises a height assembly, the height assembly comprises a first differential cylinder and a first air cylinder, the first differential cylinder is installed on the centering mechanism, and the first air cylinder is installed on the centering base; an extender of the first air cylinder is provided with a detector, when the centering mechanism moves downward, a measuring rod of the first differential cylinder can contact the detector, the detector can detect the pressure of the centering mechanism on the upper and lower lenses of the glued lenses, and the first differential cylinder can adjust the pressure of the centering mechanism on the upper and lower lenses of the glued lenses by adjusting the extension length of the measuring rod.

[0009] The centering device detects the concentricity of the glued lenses by matching the concentric device and the microscope.

[0010] Further, the concentric device further comprises a side fixing block, one end of the side fixing block is fixed to the extender of the first air cylinder, and the other side is freely inserted into the centering base; the detector is installed on the side fixing block and located directly above the extender of the first air cylinder, when the measuring rod of the first differential cylinder presses the detector downward, the extender of the first air cylinder drives the side fixing block to move downward, and the side fixing block prevents the extender of the air cylinder from rotating.

[0011] Further, a lifting plate is fixedly installed on the centering mechanism, the lifting plate is arranged on the precision motion assembly, the precision motion assembly can prevent the centering mechanism from moving downward under the action of gravity through the lifting plate, and the centering mechanism can be driven upward through the lifting plate.

[0012] Further, the zoom light emitting cylinder assembly comprises a light source cylinder base, an inner sliding cylinder is arranged in the light source cylinder base, a through hole is arranged in the center of the inner sliding cylinder, a light source is arranged in the inner sliding cylinder, a cross scale piece is arranged on the top of the inner sliding cylinder, and a condenser lens barrel is arranged on the top of the light source cylinder base; the light source can move up and down in the light source cylinder base.

[0013] Further, the microscope comprises a microscope base which is extended forward to form an intermediate through-hole structure, and the surface of the through-hole structure is provided with a jig seat; the microscope base is upwardly extended to form a support, the support is provided with an objective lens barrel below, an eyepiece above, and a CCD camera above the eyepiece, and the objective lens barrel can be moved up and down to obtain image information of the concentricity of the lower lens and the upper lens on the jig seat.

[0014] Further, the centering mechanism comprises a guide rail slider which is fixedly installed on the centering side plate, a lifting fixed block which is slidingly installed on the guide rail slider, a centering fixed block which is arranged on the lifting fixed block, a horizontal plate which is installed on the centering fixed block, and a centering cover which is installed at the front end of the horizontal plate.

[0015] Further, the precise motion assembly is a lead screw structure or a gas cylinder lifting structure.

[0016] Further, the centering base is fixedly installed on the first precise displacement table, and the centering bottom plate is fixedly installed on the upper surface of the first precise displacement table.

[0017] Further, the front surface of the lifting fixed block is provided with at least one pair of baffles, the centering fixed block is fixedly installed on the front surface of the lifting fixed block, and the centering fixed block is limited by the baffles.

[0018] Further, the top end of the centering side plate is fixedly installed with a left fixed block which serves as a limiting part for the centering mechanism.

[0019] The utility model discloses a precise centering mechanism for the automatic centering of the upper lens and the lower lens of the glued lens, and the utility model discloses the following beneficial effects.

[0020] The utility model discloses a precise centering mechanism for the automatic centering of the upper lens and the lower lens of the glued lens, and the utility model discloses the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0021] The technical solutions of the present application will be further described in detail below in combination with the drawings and embodiments. However, it should be understood that these drawings are designed only for the purpose of explanation, and thus should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, these drawings are only intended to conceptually illustrate the structural configurations described herein, and thus should not be necessarily drawn in proportion.

[0022] Figure 1 is a structural schematic view of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application;

[0023] Figure 2 is a structural schematic view of the concentric device of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application;

[0024] Figure 3 is a structural schematic view of the concentric device of a kind of automatic centering structure of glued lens provided in the embodiment 2 of the present application;

[0025] Figure 4 is a structural section view of microscope of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application;

[0026] Figure 5 is a structural schematic view of one side of microscope of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application;

[0027] Figure 6 is a structural schematic view of the other side of microscope of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application.

[0028] Figure 7 is a structural section view of zoom light-emitting cylinder assembly of a kind of automatic centering structure of glued lens provided in the embodiment 1 of the present application; DETAILED DESCRIPTION

[0029] First, it needs to be explained that the specific structure, features and advantages of the present application will be described in the following example, however, all the descriptions are only used for illustration, and should not be understood as any limitation on the present application. In addition, any single technical feature described or implied in each embodiment mentioned in the present application, or any single technical feature shown or implied in each drawing, can still continue to be combined or deleted between these technical features (or their equivalents), so as to obtain more other embodiments of the present application that can not be directly mentioned in the present application; in addition, for the purpose of simplifying the drawing, the same or similar technical features can be only indicated in one place in the same drawing.

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0031] Embodiment 1

[0032] As shown in Figure 1 , 2 , 4, 5, 6, 7, an automatic centering structure of a cemented lens comprises a mounting table 3, and a centering device 1 is mounted on the mounting table 3; specifically, the mounting table 3 comprises a shock-absorbing plate, and a mounting plate is arranged on the shock-absorbing plate; it should be noted that the mounting table 3 reduces external vibration to make the device mounted thereon and the microscope and other mechanisms more stable.

[0033] The centering device 1 comprises a second precision displacement table 62, the second precision displacement table 62 is mounted on the mounting table 3, and a zoom light-emitting cylinder assembly 50 is mounted above the second precision displacement table 62; the second precision displacement table 62 can move the zoom light-emitting cylinder assembly 50 in the front-back and / or left-right directions; the mounting table 3 further comprises a concentric device 2 and a microscope 6, and a supporting assembly 5 is mounted on the microscope 6.

[0034] Specifically, the centering device 1 comprises a fixed bottom plate 33, the fixed bottom plate 33 is provided with the second precision displacement table 62, the center of the second precision displacement table 62 is a through hole, the second precision displacement table 62 is provided with a fixed plate 61, the center of the fixed plate 61 is a through hole, and the fixed plate 61 is provided with the zoom light-emitting cylinder assembly 50; the zoom light-emitting cylinder assembly 50 of the centering device 1 is adjusted and moved through the second precision displacement table 62 to match the concentric device 2 and the microscope 6 to detect the concentricity of the cemented lens.

[0035] Specifically, the zoom light-emitting cylinder assembly 50 comprises a light source cylinder base 60, the center of the light source cylinder base 60 is a through hole, the inside of the light source cylinder base 60 is provided with an inner sliding cylinder 59, the center of the inner sliding cylinder 59 is a through hole, the inside of the inner sliding cylinder 59 is provided with a light source fixing seat 58, the light source fixing seat 58 is provided with a light source 56, the light source fixing seat 58 is fixed with the inner sliding cylinder 59, the top of the inner sliding cylinder 59 is provided with a cross scale piece 53, and the top of the light source cylinder base 60 is provided with a condenser lens cylinder 51; the light source can move up and down in the light source cylinder base 60; specifically, a rotating hand wheel 55 is sleeved on the outer wall of the light source cylinder base 60, after the rotating hand wheel 55 is sleeved, a locking ring 52 is arranged on the outer circle of the top of the light source cylinder base 60 and is tightened, a fixed column 63 is arranged on one side of the middle of the inner sliding cylinder 59, one end of the fixed column 63 protrudes from the light source cylinder base 60, and the protruding fixed column 63 is embedded in the rotating hand wheel 55; when the rotating hand wheel 55 rotates, the fixed column 63 rotates and moves with the rotating hand wheel 55, so that the inner sliding cylinder 59 moves up and down along the inner wall of the light source cylinder base 60; in addition, the top of the light source cylinder base 60 is provided with the condenser lens cylinder 51.

[0036] The microscope 6 comprises a microscope base 32 which extends forward to form an intermediate through-hole structure, and the surface of the through-hole structure is provided with a jig seat 30; the microscope base 32 upwardly forms a support 29, the support 29 is provided with a lens barrel 22, the lens barrel 22 is provided below with an objective lens 28, the lens barrel 22 is provided above with an ocular lens 21, the ocular lens 21 is provided with a CCD camera 20, and the lens barrel 22 can move up and down to obtain image information of the concentricity of the upper lens and the lower lens on the loading position of the jig seat 30 in the microscope 6.

[0037] Specifically, the microscope 6 comprises a microscope base 32 which is fixedly connected with a fixed base plate 33, the microscope base 32 extends forward to form an intermediate through-hole structure, an adjusting plate 35 is installed on the through-hole structure, the center of the adjusting plate 35 is a through-hole, a jig adapter seat 31 is installed on the adjusting plate 35, the center of the jig adapter seat 31 is a through-hole, a jig seat 30 is installed on the jig adapter seat 31, the center of the jig seat 30 is a through-hole, the structure of the jig seat 30 is not limited, but any shape structure which can meet the actual effect required by the glued lenses is available, and the jig seat 30 is used to load and place the upper lens and the lower lens which are bonded and have completed exhaust; the fixed base plate 32 extends rearward to be provided with a support 29, the support 29 is provided with a dovetail sliding table assembly 25, the other end of the dovetail sliding table assembly 25 is provided with a fixed block 23, the vertical center of the fixed block 23 is a through-hole, the lens barrel 22 is installed in the through-hole of the fixed block 23, the lens barrel 22 is provided below with the objective lens 28, the lens barrel 22 is provided above with the ocular lens 21, the ocular lens 21 is provided with the CCD camera 20, and the front end of the fixed block 23 is provided with a fixed block fastening wheel 26, the lens barrel 22 is fixed when the fixed block 23 is locked, and the image information of the concentricity of the upper lens and the lower lens on the loading position of the jig seat 30 in the microscope 6 is obtained.

[0038] Specifically, the dovetail sliding table assembly 25 comprises a dovetail base 251 and a dovetail sliding block 256, a rack 253 is installed on the dovetail base 251, a gear 252 is installed on the dovetail sliding block 256, the rack 253 and the gear 252 interact, one end of the gear 252 is extended to be installed in a gear fixing cylinder on the dovetail sliding block 256 and is fixed with a knurled hand wheel 259, a fastening piece 255 is arranged on one side of the inside of the dovetail sliding block 256, and the fastening piece 255 is fixed by a locking knob 258 on the outside of the dovetail sliding block to fix the position of the upward and downward movement of the dovetail base 251 and the dovetail sliding block 256 in the dovetail sliding table assembly 25.

[0039] Figure 2As shown, the concentric device 2 provided by the embodiment comprises a centering base 109, the centering base 109 is provided with a first precision displacement table 103, the first precision displacement table 103 is provided with a centering bottom plate 100, the centering bottom plate 100 is vertically provided with a centering side plate 83, the centering side plate 83 is provided with a centering mechanism and a precision motion assembly 123, the precision motion assembly 123 can drive the centering mechanism to move up and down;

[0040] Further comprising a height assembly 122, the height assembly 122 comprises a first differential cylinder 110 and a first air cylinder 111, the first differential cylinder 110 is installed on the centering mechanism, the first air cylinder 111 is installed on the centering bottom plate 100, the extension end of the first air cylinder 111 is installed with a detector 106, when the centering mechanism moves downward, the measuring rod of the first differential cylinder 110 can contact the detector 106, the detector 106 can detect the gravity (pressure) of the centering mechanism to the upper and lower lenses of the glued lenses, the first differential cylinder 110 can adjust the pressure of the centering mechanism to the upper and lower lenses of the glued lenses by adjusting the extension length of the measuring rod;

[0041] Further comprising a side fixing block 105, one end of the side fixing block 105 is fixed on the extension end of the first air cylinder 111, the other side is freely inserted into the centering bottom plate 100, the detector 106 is installed on the side fixing block 105 and located directly above the extension end of the first air cylinder 111, when the measuring rod of the first differential cylinder 110 presses the detector 106 downward, the extension end of the first air cylinder 111 drives the side fixing block 105 to move downward, the side fixing block 105 prevents the extension end of the first air cylinder 111 from rotating.

[0042] The centering mechanism is fixedly installed with a lifting plate 82, the lifting plate 82 is arranged on the precision motion assembly 123, the precision motion assembly 123 can block the centering mechanism from moving downward under the action of gravity through the lifting plate 82, and can drive the centering mechanism to move upward through the lifting plate 82; in the embodiment, the precision motion assembly 123 is a cylinder lifting structure, specifically, Figure 2As shown, the second cylinder 85 is fixedly installed on the fixed support 80, the fixed support 80 is fixedly installed on the centering side plate 83, and the lifting plate 82 is overlapped on the top of the extending end of the cylinder lifting structure. In order to increase the stability of the up-down movement of the centering mechanism, a jacking column can be considered to be installed on the top of the extending end of the cylinder lifting structure. At this time, the jacking column is penetrated and overlapped on the reserved circular hole on the lifting plate 82, and when the extending end of the second cylinder 85 extends, the lifting plate 82 is driven to move upward, and the reserved circular hole cooperates with the jacking column to stabilize the lifting plate 82. When the extending end of the second cylinder 85 retracts, the centering mechanism slides downward along the centering side plate 83 under the action of gravity. When the extending end of the second cylinder 85 extends, the lifting plate is driven to move upward, so that the centering mechanism moves upward. In order to prevent the centering mechanism from being pulled out of the centering side plate 83 when moving upward, a left fixed block 81 can be considered to be fixedly installed on the top end of the centering side plate 83, which limits the centering mechanism.

[0043] Specifically, the centering mechanism includes a guide rail slider 98, the guide rail slider 98 is fixedly installed on the centering side plate 83, the guide rail slider 98 is slidably installed on the lifting fixed block 88, the lifting fixed block 88 is fixedly installed on the centering fixed block 91, the centering fixed block 91 is installed on the horizontal plate 89, and the centering cover 90 is installed on the front end of the horizontal plate 89. In order to better ensure the horizontal stability of the horizontal plate 89 during the centering process, at least one pair of baffles can be considered to be arranged on the front surface of the lifting fixed block 88, the centering fixed block 91 is fixedly installed on the front surface of the lifting fixed block 88, and the centering fixed block 91 is limited by the baffles.

[0044] In order to increase the stability of the centering mechanism, a centering support plate 95 can be considered to be fixedly installed on the back of the centering side plate 83, and the centering support plate 95 is fixedly connected with the centering bottom plate 100.

[0045] It should be noted that the first precision displacement table 103 is a two-dimensional platform, which can adopt existing products and can move in X and Y directions to more accurately adjust the concentricity of the lower lens and the upper lens of the glued lens. Similarly, the second precision displacement table 62 is also a two-dimensional platform, which can adopt existing products and can move in X and Y directions.

[0046] As Figure 1 , 2As shown, in actual operation, when the centering mechanism moves downward, the measuring rod of the first differential cylinder 110 can contact the detector 106, which can detect the gravity (pressure) of the centering mechanism on the upper and lower lenses of the glued lens. When different products (glued lenses) are replaced, the height assembly 122 adjusts the height (thickness) required before and after the replacement of different products (glued lenses), which can more accurately control the position of the centering cover 90 contacting the lower and upper lenses of the glued lens on the loading position of the jig seat; the detector 106 cooperates with the height assembly 122 to more accurately control the gravity (pressure) of the centering cover 90 on the lower and upper lenses of the glued lens on the loading position of the jig seat, which is consistent with the same gravity (pressure) of the centering mechanism on the upper and lower lenses of the glued lens before and after the replacement of different products (glued lenses), effectively avoiding glue overflow and appearance defects.

[0047] The top holding assembly 5 can adopt existing products, and its main function is to fix the glued lens on the loading position of the jig seat to keep it in a fixed position for better centering. Any structure that can achieve the above functions is acceptable, regardless of the specific structure.

[0048] The microscope 6, the concentric device 2, and the centering device 1 cooperate with each other to more accurately measure the concentricity of the lower and upper lenses of the glued lens on the loading position of the jig seat 30; at the same time, the concentric device 2 can better control the gravity (pressure) of the centering cover 90 on the upper and lower lenses of the glued lens, better ensure the consistency of repeated automatic centering, and better solve the adjustment method of the height (thickness) difference before and after the replacement of different products (glued lenses) in actual work, making the operation simple and easy to understand, with high repeatability and precision. The centering cover 90 is a circular jig that can be fixed in four directions. The centering cover 90 can be circular or square, not limited by the shape, but any shape and structure that meets the actual effect can be used to adjust the concentricity of the lower and upper lenses of the glued lens.

[0049] As an example, when using the automatic centering mechanism, the centering cover 90 in the concentric device 2 repeatedly moves up and down to adhere to the glued lenses, and the phenomenon of glue overflow of the two glued lenses that are adhered together during centering often occurs. At this time, the height assembly 122 in the concentric device 2 and the detector 106 cooperate to control the gravity (pressure) applied to the glued lenses by the centering cover 90, and the value of the gravity (pressure) applied to the glued lenses by the centering cover 90 is determined according to the gravity (pressure) value set by the touch screen. When the value is greater than or less than the set value, the centering device automatically alarms and stops to wait for confirmation of the current problem, effectively controlling the occurrence of the glue overflow phenomenon or the appearance of the two glued lenses that are adhered together. During the automatic centering process, when different products (glued lenses) are replaced, the height (thickness) value changes before and after replacement. The operator only needs to adjust the first differential cylinder 110 in the height assembly 122 in the concentric device 2 to actually control the gravity (pressure) applied to the glued lenses by the centering cover 90 and the required height (thickness), and can maintain the same gravity (pressure) before and after replacement of different products (glued lenses), more efficiently controlling the required gravity (pressure) when the centering cover 90 moves to adhere to the glued lenses. The centering device 1 better cooperates with the microscope during automatic centering, better adjusts and locks the position through the precision displacement table, and the zoom light cylinder assembly 50 is more simple to operate. The microscope makes the glued lenses in the loading position of the jig seat 30 on the microscope more stable during the centering process, and solves the problem of eccentricity caused by external vibration.

[0050] In actual operation, first, the standard glued lens is placed in the loading position of the jig seat 30, and the top-holding assembly 5 is advanced by clicking on the touch screen. The lower lens in the standard glued lens is fixed by the top-holding assembly 5. The cross center point generated by the standard glued lens is observed through the microscope 6, and whether the cross cursor line appears on the display of the microscope 6. If the cross cursor line coincides with the fixed cross center point on the display, the fixed cross center point on the display is the visual fixed reference point. If the cross cursor line does not appear and does not coincide, the precision displacement table 62 of the centering device 1 and the zoom light-emitting cylinder assembly 50 are adjusted so that the cross center point generated by the standard glued lens coincides with the visual fixed reference point. After adjustment, the precision displacement table 62 is locked. Then, the position of the concentric device 2 is calibrated with the lens to be processed. The glued lens that needs to be centered is placed in the loading position of the jig seat 30, and the top-holding assembly 5 is advanced by clicking on the touch screen. The lower lens in the glued lens is fixed by the top-holding assembly 5. Then, the concentric device 2 starts to descend by clicking on the touch screen, and the gravity (pressure) of the centering cover 90 is precisely controlled to adhere to the upper lens. In the process of moving the centering cover 90 in the precision motion assembly 123 in the concentric device 2, the force is adjusted by the height assembly 122 to press the glued lens at the required position when the centering cover 90 contacts the glued lens. At the same time, the detector obtains the actual gravity (pressure) value of the centering cover 90 pressing the glued lens. The actual effect meets the actual requirements according to the adjustment setting parameters. Finally, after the glued lens to be processed is placed, the top-holding assembly 5 will fix the lower lens in the glued lens to be processed and keep it stationary. The concentric device 2 automatically descends, and the centering cover 90 presses and slightly moves the upper lens according to the adjustment setting parameters. After the cross center point of the glued lens to be processed coincides with the visual reference point, the UV lamp is automatically turned on according to the touch screen setting. After the upper and lower lenses are UV irradiated and fixed, the centering cover 90 rises, the top-holding assembly 5 retracts, and the processed glued lens is taken out. At this time, one cycle is completed, and then the glued lens to be processed is continuously placed to realize automatic centering.

[0051] The mechanism can automatically center the glued lens, and can automatically detect after positioning. In particular, during actual operation, different products (glued lenses) are often replaced, and the size of the outer diameter and the superposition height are different, which highlights the advantages of the mechanism, such as convenient operation, strong consistency, high repeat accuracy, high automation, low labor cost, high production efficiency, and high yield.

[0052] The mechanism realizes automatic centering of the upper lens and the lower lens of the glued lens, and can more accurately control the gravity (pressure) applied between the upper lens and the lower lens. The operation is more flexible, the repeat accuracy is high, the consistency is strong, and the mechanism can be adjusted according to the required height (thickness) when different products (glued lenses) are replaced. The mechanism is easy to operate, better realizes automatic centering of the upper lens and the lower lens, has high automation, improves the gluing efficiency, and has high reliability.

[0053] Example 2

[0054] In this embodiment, the precision motion component can adopt a lead screw structure, and the lifting plate 82 overlaps on the upper surface of the lead screw fixing block 86 of the lead screw structure. Other structures are the same as in Embodiment 1.

[0055] Specifically, such as Figure 3 As shown, in this embodiment, the precision motion component 123 is disposed on the right side of the centering side plate 83. The precision motion component 123 includes a lead screw nut 130, which is disposed on a lead screw fixing block 86. The lead screw fixing block 86 is sleeved on the guide rail rod 96 and the lead screw 85. One end of the guide rail rod 96 is fixed on the left fixed bracket 80, and the other end of the guide rail rod 96 is fixed on the right fixed bracket 99. Bearings are provided in the left fixed bracket 80 and the right fixed bracket 99 to fix the lead screw 85. One end of the lead screw 85 extends out and is connected to the motor 108 through the coupling 101. The motor 108 is disposed on the motor fixing seat 102, which is disposed on the centering side plate 83. The precision motion component 123 can respond faster to achieve fast and slow up and down movement and more precise position positioning, and better match the up and down displacement position of the centering cover 90.

[0056] The above embodiments have provided a detailed description of the present invention, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A structure for automatic centering of a glued lens, characterized in that, The centering device is installed on the mounting table; The centering device includes a second precision displacement table, which is installed on the mounting table and has a zoom light-emitting cylinder assembly installed thereon. The centering device includes a centering base, a centering bottom plate installed on the centering base, a centering side plate vertically and fixedly installed on the upper portion of the centering bottom plate, a centering mechanism and a precision motion assembly provided on the centering side plate, and the precision motion assembly can drive the centering mechanism to move up and down. The centering device is matched with the concentric device and the microscope to detect the concentricity of the glued lens.

2. An automatic centering structure for a cemented lens according to claim 1, characterized in that: The centering mechanism has a lifting plate fixedly installed thereon, the lifting plate is arranged on the precision motion assembly, the precision motion assembly can block the centering mechanism from moving downward under the action of gravity through the lifting plate and can drive the centering mechanism to move upward through the lifting plate.

3. An automatic centering structure for a cemented lens according to claim 1, characterized in that: The zoom light-emitting cylinder assembly includes a light source cylinder base, an inner sliding cylinder provided in the light source cylinder base, a through hole in the center of the inner sliding cylinder, a light source provided in the inner sliding cylinder, a cross scale piece provided on the top of the inner sliding cylinder, and a condenser lens cylinder provided on the top of the light source cylinder base.

4. The automatic centering structure of claim 1, wherein: The microscope includes a microscope base, an intermediate through hole structure formed by extending the microscope base forward, a jig seat provided on the surface of the through hole structure, a support formed by extending the microscope base upward, a lens barrel provided on the support, an objective lens provided below the lens barrel, an ocular provided above the lens barrel, a CCD camera provided on the ocular, and the lens barrel can move up and down to obtain image information of the concentricity of the lower lens and the upper lens on the jig seat.

5. The automatic centering structure of claim 1, wherein: The centering mechanism includes a guide rail slider fixedly installed on the centering side plate, a lifting fixed block slidingly installed on the guide rail slider, a centering fixed block provided on the lifting fixed block, a horizontal plate installed on the centering fixed block, and a centering cover installed on the front end of the horizontal plate.

6. The automatic centering structure of claim 1, wherein: ​ 7. An automatic centering structure for a cemented lens according to claim 3, characterized in that: The precision movement assembly is a screw rod structure or a cylinder lifting structure.

8. The automatic centering structure of claim 1, wherein: The first precision displacement table is fixedly installed on the centering base, and the centering bottom plate is fixedly installed on the upper surface of the first precision displacement table.

9. An automatic centering structure for a cemented lens according to claim 6, characterized in that: At least one pair of baffles is arranged on the front surface of the lifting fixed block, the centering fixed block is fixedly installed on the front surface of the lifting fixed block, and the centering fixed block is limited by the baffles.

10. The automatic centering structure for a cemented lens according to claim 1, wherein: The top end of the centering side plate is fixedly installed with a left fixed block, and the centering mechanism is limited.

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