Fully automatic lens core adjustment and dispensing equipment and method

Abstract

The present invention is applicable to the field of automation technology, and provides a fully automatic lens core adjustment and glue dispensing device and method, the fully automatic lens core adjustment and glue dispensing device includes a device body, a control system and an eccentric machine set on the device body, a group of lens groups are set on the device body, a reference optical axis is formed between the lens group and the eccentric machine, a bottom plate with a light-through hole is set on the top of the lens group, a lens fixing seat is set on the bottom plate, which is used to place the lens barrel and lens to be adjusted; the eccentric machine is used to monitor the eccentric information of the lens and feed it back to the control system; a lens barrel bearing structure, a lens rotating structure and a glue dispensing fixing structure are set on the bottom plate around the light-through hole, and the lens barrel bearing structure, the lens rotating structure and the glue dispensing fixing structure are electrically connected to the control system respectively. The present invention can fully automatically adjust the core of a wide range of lens outer diameters by setting the coordination between multiple structures.

Description

Technical Field

[0001] The invention belongs to the field of automation technology, and in particular relates to a fully automatic lens core adjustment and glue dispensing device and method. Background Art

[0002] An optical lens is composed of multiple lenses, among which the optical design will identify the sensitive lens. The position change of this sensitive lens has a great impact on the overall resolution of the optical lens. Therefore, during production, lens core adjustment equipment is used to move the position of this sensitive lens in the horizontal plane to obtain the position with the best resolution, thereby improving the lens resolution yield and the lens resolution quality.

[0003] There are many types of lens alignment equipment for optical lenses on the market, but most of them are for consumer lenses, and the lens diameter is small and the thickness is within a certain small range (consumer lenses: diameter φ3mm-φ20mm, thickness 0.5mm-6mm). In addition, the alignment mechanism is three-axis alignment to adjust the lens from three different directions. In terms of structural cost, the cost of three-axis alignment is relatively high, and most of them are manually adjusted, which will result in high labor hours and inaccurate alignment results. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a fully automatic lens core alignment and dispensing device and method, aiming to solve the problem that the existing three-axis core alignment has high costs, and manual core alignment will result in high labor hours and inaccurate core alignment results.

[0005] The embodiment of the present invention is implemented as follows: a fully automatic lens core adjustment and dispensing device comprises a device body, a control system and a core eccentric machine set on the device body, a lens group is set on the device body, and a reference optical axis is formed between the lens group and the core eccentric machine;

[0006] A bottom plate with a light-through hole is provided on the top of the lens group, and a lens fixing seat is provided on the bottom plate for placing the lens barrel and the lens to be aligned; the eccentricity machine is used to monitor the eccentricity information of the lens and feed it back to the control system;

[0007] The bottom plate is provided with a lens barrel supporting structure, a lens rotating structure and a glue fixing structure around the light-through hole, and the lens barrel supporting structure, the lens rotating structure and the glue fixing structure are electrically connected to the control system respectively;

[0008] Among them, the lens barrel supporting structure is used to limit the position of the lens barrel and the lens placed on the lens fixing seat, the lens rotating structure is used to drive the lens to rotate, and the glue fixing structure is used to push the lens to offset to achieve lens centering, and to glue and cure the lens after the centering is completed.

[0009] Preferably, the bottom plate is provided with mounting screw holes in an array for detachably mounting the lens barrel supporting structure, the lens rotating structure and the glue-dispensing fixing structure.

[0010] Preferably, a second Z-axis adjustable slide is provided on the bottom plate, and the lens fixing seat is provided on the second Z-axis adjustable slide, and the height of the lens fixing seat is adjusted along the reference optical axis direction by the second Z-axis adjustable slide.

[0011] Preferably, the lens barrel supporting structure comprises a first three-axis adjustable module and a V-shaped supporting member, the first three-axis adjustable module is arranged on the bottom plate, and the V-shaped supporting member is arranged at a free end of the first three-axis adjustable module.

[0012] Preferably, the three-axis adjustable stroke of the first three-axis adjustable module is 0 to 30 mm, and the accuracy is 0.005 mm.

[0013] Preferably, the lens rotating structure comprises a second three-axis adjustable module arranged on the base plate, and a rotating component arranged at a free end of the second three-axis adjustable module;

[0014] The rotating assembly includes a cantilever, a friction wheel group and a driving member. The cantilever is arranged at the free end of the second three-axis adjustable module and extends toward the direction of the lens fixing seat. The friction wheel group is arranged on the cantilever. The driving member is connected to the friction wheel group to drive the friction wheel group in contact with the lens to rotate.

[0015] Preferably, the dispensing fixing structure comprises: a servo motor module, a first Z-axis adjustable slide and a fixing member, the servo motor module is arranged on the bottom plate, the first Z-axis adjustable slide is arranged on the servo motor module, and the fixing member is arranged on the first Z-axis adjustable slide;

[0016] An operating space is provided on the fixing member, and the operating space is located at the top of the lens fixing seat. A lens pushing assembly, a glue dispensing assembly and a UV irradiation assembly are arranged around the operating space; the lens pushing assembly is used to push the lens to move to reduce the offset of the lens, the glue dispensing assembly is used to dispense glue between the lens and the lens barrel, and the UV irradiation assembly is used to fix the lens.

[0017] Preferably, the adjustable stroke of the first Z-axis adjustable slide is 0 to 30 mm, with an accuracy of 0.01 mm; the adjustable stroke of the servo motor module is 0 to 30 mm, with an accuracy of 0.001 mm.

[0018] The present invention provides a fully automatic lens core adjustment and glue dispensing method, which is applied to the fully automatic lens core adjustment and glue dispensing equipment, and the method comprises the following steps:

[0019] Monitor the lens barrel and lens placed on the lens holder through the eccentricity machine; obtain the eccentricity information of the lens and feed it back to the control system;

[0020] The control system controls the lens rotating structure to drive the lens to rotate according to the eccentricity information, so that the eccentricity of the lens is aligned with the lens pushing component in the glue-fixing structure;

[0021] Controlling the lens pushing assembly to correct the eccentricity of the lens to complete the core adjustment;

[0022] The lens rotating structure and the lens pushing assembly are controlled individually or in coordination to complete the alignment of the lens.

[0023] Preferably, the method further comprises:

[0024] After the lens is aligned, the glue dispensing component and UV irradiation component of the glue dispensing fixing structure are controlled to dispense glue and cure the lens.

[0025] The embodiment of the present invention provides a fully automatic lens centering and glue dispensing equipment, which can adapt to the centering of lenses of different sizes through the provided lens fixing seat and the lens barrel supporting structure. Lenses of various sizes can be adjusted, especially large-volume lenses can be adjusted. When adjusting the centering, the lens is corrected for eccentricity through the provided lens rotating structure and the lens pushing component in the glue dispensing and fixing structure to achieve centering. Compared with the three-axis or four-axis centering structure, the structure is simpler and the cost can be controlled lower. Moreover, the control system can control the operation of each structure to complete the lens centering automatically. After the centering is completed, the glue dispensing and fixing structure is controlled to perform glue dispensing and curing. This effectively improves work efficiency, saves labor costs, and improves the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional structural diagram of a fully automatic lens core adjustment and glue dispensing device provided by an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the device body in an embodiment of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the glue-dispensing fixing structure in an embodiment of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the lens barrel supporting structure in an embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the lens rotation structure in an embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a lens fixing seat in an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of the assembly of the lens barrel and the lens in the embodiment of the present invention;

[0033] Figure 8 This is a focusing diagram example 1 of the lens alignment in an embodiment of the present invention;

[0034] Fig. 9 This is a second focusing diagram of the lens alignment in an embodiment of the present invention;

[0035] Fig.10 This is the third focusing diagram of the lens alignment in the embodiment of the present invention;

[0036] Fig.11 A schematic diagram of a process flow of a fully automatic lens core adjustment and glue dispensing method provided by an embodiment of the present invention;

[0037] Fig.12 Schematic diagram of the glue dispensing process after the lens is aligned in an embodiment of the present invention.

[0038] In the attached drawings: 100-equipment body; 101-electrical box; 102-eccentric machine table; 103-touch screen; 104-bottom plate; 105-reference optical axis; 200-glue dispensing fixed structure; 201-ultra-precision servo motor module; 202-first Z-axis adjustable slide; 203-glue dispensing irradiation head; 204-pushing head; 205-lens pushing assembly; 300-lens barrel supporting structure; 301-first three-axis adjustable module; 400-lens rotating structure; 401-second three-axis adjustable module; 402-driving wheel; 403-rotating wheel; 404-fixed plate; 405-rotating motor; 500-lens fixing seat; 501-second Z-axis adjustable slide; 600-lens; 700-lens barrel. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that, unless otherwise expressly specified and limited, the terms "reference", "connection", "support", "fixed", "adjustable", "coaxiality", "outer diameter", "precision", "rotation", "concentricity" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation structure and operation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features.

[0041] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0042] like Figure 1-Figure 7 As shown, in one embodiment, a fully automatic lens core adjustment and dispensing device includes a device body 100, a control system, and a core eccentric machine 102 disposed on the device body 100, wherein a lens group is disposed on the device body 100, and a reference optical axis 105 is formed between the lens group and the core eccentric machine 102;

[0043] A bottom plate 104 with a light hole is disposed on the top of the lens group, and a lens fixing seat 500 is disposed on the bottom plate 104 for placing the lens barrel 700 and the lens 600 to be aligned; the eccentricity machine 102 is used to monitor the eccentricity information of the lens 600 and feed it back to the control system;

[0044] The bottom plate 104 is provided with a lens barrel supporting structure 300, a lens rotating structure 400 and a glue fixing structure 200 around the light through hole, and the lens barrel supporting structure 300, the lens rotating structure 400 and the glue fixing structure 200 are electrically connected to the control system respectively;

[0045] Among them, the lens barrel supporting structure 300 is used to limit the position of the lens barrel 700 and the lens 600 placed on the lens fixing seat 500, the lens rotating structure 400 is used to drive the lens 600 to rotate, and the glue fixing structure 200 is used to push the lens 600 to offset to achieve the center adjustment of the lens 600, and to glue and cure the lens 600 after the center adjustment is completed.

[0046] In the embodiment of the present invention, the eccentricity information of the lens 600 is mainly the offset of the lens 600 during the centering process; by means of the lens fixing seat 500 and the lens barrel supporting structure 300, it is possible to adapt to the centering and fixing of lenses 600 of different sizes, and lenses 600 of various sizes are adjustable, especially large-volume lenses 600 can be adjusted; during centering, the lens rotating structure 400 is set, and the lens pushing component 205 in the glue-dispensing fixing structure 200 is cooperated to correct the eccentricity of the lens 600 to achieve centering. Compared with the three-axis or four-axis centering structure, the overall structure is simpler and the cost can be controlled to be lower; and the control system can control the work of each structure to automatically complete the centering of the lens 600; after the centering is completed, the glue-dispensing fixing structure 200 is controlled to dispense glue and cure; the work efficiency is effectively improved, the labor cost is saved, and the degree of automation is improved.

[0047] like Figure 1 , Figure 2 As shown, in one embodiment scenario, the device body 100 is provided with: an electrical box 101, a touch screen 103, and a servo controller and a PLC controller installed in the electrical box 101 to form a control system; the deflection machine 102 transmits the offset data of the lens 600 to the PLC controller, and the PLC controller feeds back a command to the servo controller, and the servo controller controls the movement of the relevant structure to perform deflection correction. An example of the correction process is shown in FIG. Figure 8 , Fig. 9 The corrected effect is shown in Fig.10 As shown, at this time, the core adjustment is completed, and the PLC controller sends a signal to the glue dispensing machine to perform glue dispensing. After the glue dispensing is completed, the PLC controller sends a signal to the ultraviolet light source for irradiation. After the UV glue dries, the entire operation process is completed.

[0048] like Figure 2 As shown, in one embodiment scenario, the de-centering machine 102 includes an upper axis light pipe for generating a reference optical axis 105; when the center of the lens 600 is concentric with the reference optical axis 105 emitted by the upper axis light pipe, the centering of the lens 600 is completed.

[0049] In one embodiment scenario, the de-centering machine 102 can be configured as a laser transmitter that cooperates with the lens group. The laser transmitter emits a reference laser, which enters the lens group and is reflected. The transmission information of the lens is analyzed according to the reflection situation. The reference laser is coaxial with the reference optical axis, so as to operate the lens 600 to be aligned.

[0050] In the embodiment of the present invention, the reference optical axis 105 is a descriptive term, not an entity. Those skilled in the art can easily understand that the description of the reference optical axis 105 can better understand the matching relationship and positional relationship between the lens and other structures.

[0051] like Figure 2As shown, in one embodiment, the bottom plate 104 is provided with an array of mounting screw holes for detachably mounting the lens barrel supporting structure 300 , the lens rotating structure 400 and the glue fixing structure 200 .

[0052] In this embodiment, the array distance of the mounting screw holes is 50 mm, and the specification of the mounting screw holes is M5; thus, the mounting screw holes can be used to flexibly adjust and install the lens barrel supporting structure 300, the lens rotating structure 400, and the glue fixing structure 200. The manufacturing materials of the bottom plate 104, the lens fixing seat 500, the lens barrel supporting structure 300, the lens rotating structure 400, and the glue fixing structure 200 are made of metal materials, such as stainless steel, aluminum, aluminum alloy, etc.

[0053] like Figure 1 , Figure 6 As shown, in one embodiment scenario, a second Z-axis adjustable slide 501 is provided on the base plate 104, and the lens holder 500 is provided on the second Z-axis adjustable slide 501, and the height of the lens holder 500 is adjusted along the direction of the reference optical axis 105 by the second Z-axis adjustable slide 501;

[0054] Generally, the second Z-axis adjustable slide 501 has an adjustable stroke in the vertical direction, and the adjustable stroke can be set to: 0-30mm, with an accuracy of 0.01mm, to achieve high-precision vertical fine-tuning in the up and down directions.

[0055] like Figure 1 , Figure 4 As shown, in an embodiment scenario, the lens barrel supporting structure 300 includes a first three-axis adjustable module 301 and a V-shaped supporting member, the first three-axis adjustable module 301 is arranged on the base plate 104, and the V-shaped supporting member is arranged at the free end of the first three-axis adjustable module 301; generally, the first three-axis adjustable module 301 includes an X-axis servo drive, a Y-axis servo drive, and a Z-axis servo drive, which are connected in sequence to realize the moving stroke drive in the three-axis direction, and then realize high-precision fine-tuning in three different directions.

[0056] Among them, the V-shaped supporting member includes a supporting connecting plate, a V-shaped supporting frame or a V-shaped supporting plate integrally arranged at both ends of the supporting connecting plate; the supporting connecting plate is connected to the first three-axis adjustable module 301, and the first three-axis adjustable module 301 can drive the supporting connecting plate and the V-shaped supporting plate to perform three-axis servo movement. The V-shaped supporting plate can cooperate with the lens fixing seat 500 so that the lens barrel 700 is supported on the V-mouth of the V-shaped supporting plate to ensure that the lens barrel 700 is not offset in the center position of the optical axis, and the three-axis direction is adjustable through the first three-axis adjustable module 301, that is, the overall adjustment is achieved; the lens barrel 700 and the lens 600 with different outer diameters can be supported and placed for core adjustment operations; the V-shaped supporting plate can support the lens barrel 700 and the lens 600 with different outer diameters for core adjustment operations.

[0057] In one embodiment scenario, the three-axis adjustable stroke of the first three-axis adjustable module 301 is 0 to 30 mm, and the accuracy is 0.005 mm.

[0058] Of course, for a single lens with 600 degree adjustment, the actual travel within the three-axis adjustable travel range may be far lower than the adjustable travel.

[0059] like Figure 1 , Figure 5 As shown, in one embodiment scenario, the lens rotating structure 400 includes a second three-axis adjustable module 401 disposed on the base plate 104, and a rotating component disposed at a free end of the second three-axis adjustable module 401;

[0060] In one embodiment scenario, the lens rotating structure 400 can also drive the lens barrel 700 to rotate. The relative position of the rotating wheel 403 is adjusted by the second three-axis adjustable module 401 so that the rotating wheel 403 contacts the lens barrel 700 or the lens 600 to drive the lens barrel 700 and the lens 600 to rotate.

[0061] In one embodiment scenario, the rotating assembly includes a cantilever, a friction wheel group and a driving member. The cantilever is arranged at the free end of the second three-axis adjustable module 401 and extends toward the direction of the lens fixing seat 500. The friction wheel group is arranged on the cantilever. The driving member is connected to the friction wheel group to drive the friction wheel group in contact with the lens 600 to rotate.

[0062] In this embodiment, the friction wheel group includes: a rotating wheel 403, a driving wheel 402, and a fixed plate 404. The fixed plate 404 is used as a cantilever for rotatably installing the rotating wheel 403, and the rotating wheel 403 is in contact with the lens 600; the driving wheel 402 is rotatably installed on the cantilever, and the two driving wheels 402 are connected by a transmission belt. The driving wheel 402 close to the free end of the second three-axis adjustable module 401 is connected to the output shaft of the driving member, and the other driving wheel 402 is coaxially connected to the rotating wheel 403; the driving member can be a micromotor or a motor; the micromotor or motor is used as a rotating motor 405 to drive the friction wheel group to rotate, and then drive the rotating wheel 403 in contact with the lens 600 to rotate, so that the lens 600 rotates, so that the eccentric position of the lens is aligned with the lens pushing component 205, so that the lens pushing component 205 can correct the offset of the lens 600.

[0063] The second three-axis adjustable module 401 can be installed on the bottom plate 104, the free end of the second three-axis adjustable module 401 is connected and fixed to the lens rotating structure 400, and the driving member can be a servo motor, which is connected to the control system; the servo motor drives the rotating wheel 403 to rub, and drives the lens 600 to rotate together, which is used to detect whether the eccentricity of the lens barrel 700 and the lens 600 is within the required range after the core is adjusted, and the offset position can be swung to the lens pushing component 202 for eccentricity correction;

[0064] In this embodiment, the second three-axis adjustable module 401 has the same structure and specifications as the first three-axis adjustable module 301; the touch screen 103 is connected to the second three-axis adjustable module 401 and the first three-axis adjustable module 301 through a servo controller, and can control the second three-axis adjustable module 401 and the first three-axis adjustable module 301, the lens rotation structure 400, and can set system parameters.

[0065] like Figure 1 , Figure 3 As shown, in one embodiment scenario, the dispensing fixing structure 200 includes: a servo motor module, a first Z-axis adjustable slide 202 and a fixing member, the servo motor module is arranged on the base plate 104, the first Z-axis adjustable slide 202 is arranged on the servo motor module, and the fixing member is arranged on the first Z-axis adjustable slide 202;

[0066] An operating space is provided on the fixing member, and the operating space is located at the top of the lens fixing seat 500. A lens pushing component 205, a glue dispensing component and a UV irradiation component are provided around the operating space; the lens pushing component 205 is used to push the lens 600 to move to reduce the offset of the lens 600, the glue dispensing component is used to dispense glue between the lens 600 and the lens barrel 700, and the UV irradiation component is used to fix the lens 600.

[0067] In one embodiment scenario, the fixing member is a fixing plate with a through hole in the center, or a directly sampled fixing ring; the through hole constitutes the operating space, or the middle part of the fixing ring constitutes the operating space.

[0068] In one embodiment scenario, the glue dispensing component includes a glue dispensing nozzle and a glue tank. The glue tank is provided with a pressure pump, and the pressure pump is connected to the glue dispensing nozzle through a connecting pipe; the UV irradiation component includes a UV irradiator (or ultraviolet light source), and the glue dispensing nozzle and the UV irradiator can be integrated into a glue dispensing irradiation head 203, and the glue dispensing irradiation head 203 is tilted and biased towards the direction of the reference optical axis 105; the lens pushing component 205 mainly includes a push rod and a pushing head, and the push rod is arranged on the fixing member, the push rod is connected to the pushing head, and the pushing head is tilted and biased towards the direction of the reference optical axis 105.

[0069] In one embodiment scenario, the servo motor module selected is an ultra-precision servo motor module 201. The ultra-precision servo motor module 201 has an adjustable X-axis stroke, a maximum stroke of 30mm, and an accuracy of 0.001mm; it can achieve high-precision automatic eccentricity correction, and at the same time, it is connected and fixed to the first Z-axis adjustable slide 202; the Z-axis direction is adjustable, the maximum stroke is 30mm, and the accuracy is 0.01mm; it can achieve high-precision vertical up and down fine-tuning.

[0070] As mentioned above, when the lens 600 is pushed to adjust the center or glue is applied for curing:

[0071] The ultra-precision servo motor module 201 drives the first Z-axis adjustable slide 202, the dispensing fixed structure 200, the lens pushing component 205 and the like to move linearly in the X-axis direction;

[0072] The first Z-axis adjustable slide 202 drives the dispensing fixed structure 200 and the lens pushing component 205 to move linearly in the Z-axis direction as a whole;

[0073] The lens push assembly 205 is fixed on the glue-dispensing fixing structure 200. In addition, the lens push assembly 205 may not be fixed on the glue-dispensing fixing structure 200, but may be fixed on the bottom plate 104. The power of the lens push assembly 205 comes from the ultra-precision servo motor module 201, that is, there is no need to set a push rod.

[0074] In some other scenarios, electromagnetic rods, gas rods, etc. can be set up to supplement the push rods.

[0075] In one embodiment scenario, the adjustable stroke of the first Z-axis adjustable slide 202 is 0 to 30 mm, with an accuracy of 0.01 mm; the adjustable stroke of the servo motor module is 0 to 30 mm, with an accuracy of 0.001 mm.

[0076] The first Z-axis adjustable slide 202 is connected and fixed to the glue dispensing fixing structure 200, so that the glue dispensing position can be adjusted up and down and vertically. This glue dispensing position is located in the coaxial direction above the lens barrel fixing seat 500.

[0077] In one embodiment scenario, the operation process of the fully automatic lens core adjustment and dispensing equipment is as follows:

[0078] Turn on the power of the eccentric machine and plug in the power supply to power the power box. At this time, there is a (fixed) yellow cross cursor on the touch screen 103. The next step is to place the lens barrel 700 and the lens 600 on the lens fixing seat 500. At this time, a white cross optical axis will appear on the touch screen 103 (which will move with the offset of the lens 600). Then, the lens barrel supporting structure 300 connected to it is adjusted to the required supporting position of the lens 600 through the first three-axis adjustable module 401 (the same type of lens barrel 700 and lens 600 only need to be adjusted for the first time, and no subsequent adjustment is required). In the next step, the lens rotating structure 400 connected to it is driven to be close to the lens barrel 700 through the second three-axis adjustable module 301, so that the rotating wheel 403 rubs to drive the lens 600 to rotate (the same type of lens barrel 700 and lens 600 only need to be adjusted for the first time, No subsequent adjustments are required), and then, the glue dispensing position and the position of ultraviolet irradiation can be manually adjusted. The fixed glue dispensing position and light source irradiation position are on the lens 600 and the lens barrel 700. The pressure pump, glue dispensing nozzle and UV irradiator of the glue dispensing machine, namely the glue dispensing irradiation head 203, are controlled by the PLC controller to realize automatic glue dispensing irradiation, and the position of the pushing head 204 is adjusted. The pushing head 204 can use a single-axis pushing claw to adjust the position of the single-axis pushing claw (the same type of lens barrel 700 and lens 600 only need to be adjusted for the first time, and no subsequent adjustments are required). The above adjustment preparations have been completed; all the same type of lens barrels 700 and lenses 600 only need to be adjusted once. Subsequent operations only require manual placement of the lens barrel 700 and lens 600 on the lens fixing seat 500 for fully automatic core adjustment operations. After completing the above preparations, click the start button on the touch screen 103, and the lens rotation structure 400 will drive the lens 600 to rotate. At this time, if Figure 8 As shown, the yellow cross cursor on the touch screen 103 will draw a circle around the white cross cursor as the lens barrel 700 rotates. Figure 8 It can be clearly seen that the "center light spot" is biased to the left of the white cross. At this time, the biased position is fed back to the PLC controller through the biased core machine 102, and the PLC controller (hereinafter referred to as PLC) feeds back the command to the servo controller. The servo controller controls the lens rotating structure 400 to rotate the lens barrel 700 and the lens 600 to the right of the white cross (the lens 600 is biased to that side, which is relative to the yellow center of the touch screen 103). After rotating to the position where the adjustable core is corrected, as shown in FIG. Fig. 9As shown, at this time, the offset data is transmitted to the PLC through the eccentric machine 102, and the PLC feeds back the command to the servo controller, and the servo controller controls the ultra-precision servo motor module to move, and the lens push component 205 performs eccentric correction. The effect after correction is as shown in FIG. Fig.10 As shown, at this time, the core adjustment is completed, and the PLC gives a signal to control the glue dispensing machine to dispense glue. After the glue dispensing is completed, the PLC gives a signal to control the ultraviolet light source to irradiate. After the UV glue is dried, the entire operation process is completed.

[0079] The equipment provided in this embodiment can adjust the core between the lens barrel 700 and the lens 600 to a concentricity of 0.002mm; lenses 600 and lens barrels 700 of different sizes can be placed, and the range is very wide (diameter φ3mm-φ120mm thickness 0.5mm-30mm) for core adjustment operations; it can be fully automated, including automatic core adjustment and automatic dispensing, without the need to correct coaxiality and parallelism, simple operation, and improved work efficiency. The structure of the equipment is simple, the whole machine costs 200,000 yuan, and most of the module standard parts can be purchased directly without customization. The spare parts have a simple structure and can be designed by themselves, and the processing difficulty is relatively low; the same equipment is commonly seen on the market. The domestic machine is priced at about 1 million yuan, and the foreign imported machine is priced at about 3 million yuan, so the equipment of this embodiment has a greater price advantage in the market.

[0080] like Fig.11 As shown, in one embodiment, a fully automatic lens core adjustment and glue dispensing method is applied to the fully automatic lens core adjustment and glue dispensing device, and the method includes the following steps:

[0081] S111: Monitor the lens barrel 700 and the lens 600 placed on the lens fixing seat 500 through the eccentricity machine 102; obtain the eccentricity information of the lens 600 and feed it back to the control system;

[0082] S113: The control system controls the lens rotating structure 400 to drive the lens 600 to rotate according to the eccentricity information, so that the eccentric position of the lens 600 is aligned with the lens pushing component 205 in the glue-fixing structure 200;

[0083] S115: Control the lens pushing assembly 205 to correct the eccentricity of the lens 600 to complete the alignment;

[0084] The lens rotating structure 400 and the lens pushing assembly 205 are controlled individually or in coordination to complete the centering of the lens 600 .

[0085] like Fig.12 As shown, in one embodiment scenario, the method further includes:

[0086] S117: After the alignment of the lens 600 is completed, the glue dispensing component and the UV irradiation component of the glue dispensing fixing structure 200 are controlled to dispense glue and cure the lens 600.

[0087] In one embodiment scenario, the glue dispensing component includes a glue dispensing nozzle and a glue tank. The glue tank is provided with a pressure pump, and the pressure pump is connected to the glue dispensing nozzle through a connecting pipe; the UV irradiation component includes a UV irradiator (or ultraviolet light source), and the glue dispensing nozzle and the UV irradiator can be integrated into a glue dispensing irradiation head 203, and the glue dispensing irradiation head 203 is tilted and biased towards the direction of the reference optical axis 105; the lens pushing component 205 mainly includes a push rod and a pushing head, and the push rod is arranged on the fixing member, the push rod is connected to the pushing head, and the pushing head is tilted and biased towards the direction of the reference optical axis 105.

[0088] In the above-mentioned embodiment of the present invention, a fully automatic lens centering and gluing device is provided. Through the lens fixing seat 500 and the lens barrel supporting structure 300, it can adapt to the centering of lenses 600 of different sizes. Lenses 600 of various sizes can be adjusted, especially large-volume lenses 600 can be adjusted. During centering, the lens rotating structure 400 is provided, and the lens pushing component 205 in the gluing fixing structure 200 is cooperated to perform eccentricity correction on the lens 600 to achieve centering. Compared with the three-axis or four-axis centering structure, the structure is simpler and the cost can be controlled to be lower. Moreover, the control system can control the operation of each structure to automatically complete the centering of the lens 600. After the centering is completed, the gluing fixing structure 200 is controlled to perform gluing and curing. This effectively improves work efficiency, saves labor costs, and improves the degree of automation. This effectively improves work efficiency.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic lens core adjustment and dispensing device, comprising a device body, a control system and a core eccentric machine set on the device body, wherein a lens group is set on the device body, and a reference optical axis is formed between the lens group and the core eccentric machine; characterized in that: A bottom plate with a light-through hole is provided on the top of the lens group, and a lens fixing seat is provided on the bottom plate for placing the lens barrel and the lens to be aligned; the eccentricity machine is used to monitor the eccentricity information of the lens and feed it back to the control system; The bottom plate is provided with a lens barrel supporting structure, a lens rotating structure and a glue fixing structure around the light-through hole, and the lens barrel supporting structure, the lens rotating structure and the glue fixing structure are electrically connected to the control system respectively; Wherein, the lens barrel supporting structure is used to limit the position of the lens barrel and the lens placed on the lens fixing seat, the lens rotating structure is used to drive the lens to rotate, the glue fixing structure is used to push the lens to deflect to achieve lens core adjustment, and to glue and cure the lens after the core adjustment is completed, the lens barrel supporting structure includes a first three-axis adjustable module and a V-shaped supporting member, the first three-axis adjustable module is arranged on the bottom plate, the V-shaped supporting member is arranged at the free end of the first three-axis adjustable module, the glue fixing structure includes: a servo motor module, a first Z-axis adjustable slide and a fixing member, the servo motor module is arranged on the bottom plate, the first Z-axis adjustable slide is arranged on the servo motor module, and the fixing member is arranged on the first Z-axis adjustable slide; An operating space is provided on the fixing member, and the operating space is located at the top of the lens fixing seat. A lens pushing assembly, a glue dispensing assembly and a UV irradiation assembly are arranged around the operating space; the lens pushing assembly is used to push the lens to move to reduce the offset of the lens, the glue dispensing assembly is used to dispense glue between the lens and the lens barrel, and the UV irradiation assembly is used to fix the lens.

2. The fully automatic lens core adjustment and dispensing equipment according to claim 1 is characterized in that: The bottom plate is provided with mounting screw holes in an array for detachably mounting the lens barrel supporting structure, the lens rotating structure and the glue-dispensing fixing structure.

3. The fully automatic lens core adjustment and glue dispensing equipment according to claim 1 is characterized in that: A second Z-axis adjustable slide is disposed on the bottom plate, and the lens fixing seat is disposed on the second Z-axis adjustable slide. The height of the lens fixing seat is adjusted along the reference optical axis direction via the second Z-axis adjustable slide.

4. The fully automatic lens core adjustment and glue dispensing equipment according to claim 1 is characterized in that: The three-axis adjustable stroke of the first three-axis adjustable module is 0 to 30 mm, and the accuracy is 0.005 mm.

5. The fully automatic lens core adjustment and glue dispensing equipment according to claim 1 is characterized in that: The lens rotating structure comprises a second three-axis adjustable module arranged on the bottom plate, and a rotating component arranged at a free end of the second three-axis adjustable module; The rotating assembly includes a cantilever, a friction wheel group and a driving member. The cantilever is arranged at the free end of the second three-axis adjustable module and extends toward the direction of the lens fixing seat. The friction wheel group is arranged on the cantilever. The driving member is connected to the friction wheel group to drive the friction wheel group in contact with the lens to rotate.

6. The fully automatic lens core adjustment and glue dispensing equipment according to claim 1 is characterized in that: The adjustable stroke of the first Z-axis adjustable slide is 0 to 30 mm, with an accuracy of 0.01 mm; the adjustable stroke of the servo motor module is 0 to 30 mm, with an accuracy of 0.001 mm.

7. A fully automatic lens core adjustment and glue dispensing method, using the fully automatic lens core adjustment and glue dispensing equipment according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: Monitor the lens barrel and lens placed on the lens holder through the eccentricity machine; obtain the eccentricity information of the lens and feed it back to the control system; The control system controls the lens rotating structure to drive the lens to rotate according to the eccentricity information, so that the eccentricity of the lens is aligned with the lens pushing component in the glue-fixing structure; Controlling the lens pushing assembly to correct the eccentricity of the lens to complete the core adjustment; The lens rotating structure and the lens pushing assembly are controlled individually or in coordination to complete the alignment of the lens.

8. The fully automatic lens core adjustment and glue dispensing method according to claim 7, characterized in that: The method further comprises: After the lens is aligned, the glue dispensing component and UV irradiation component of the glue dispensing fixing structure are controlled to dispense glue and cure the lens.

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