CN213612373U

CN213612373U - Full-automatic coupling solidification equipment of COB

Info

Publication number: CN213612373U
Application number: CN202022621479.4U
Authority: CN
Inventors: 曹彬睿; 淳忠; 文平
Original assignee: Sunstar Communication Technology Co ltd
Current assignee: Sunstar Communication Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-06
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a full-automatic coupling solidification equipment of COB, including the integrated automatically controlled frame of mesa formula and install PCBA in the integrated automatically controlled frame of mesa formula down anchor clamps subassembly, lens go up anchor clamps subassembly, UV glue and paint subassembly, UV banks spare, peripheral glue and paint subassembly and CCD control judgment module. The utility model combines two stations of coupling pre-curing and reinforcing peripheral adhesive coating into a desktop type automatic machine platform with one working step; the product is pneumatically clamped, pneumatic power is applied, the lens and PCB mechanical flat pasting structure is compact and efficient, the product is driven by a high-precision potential table to accurately move, the repeated positioning precision is 0.5um, the light seeking coupling of different products can be ensured, the power-on parameter of the product is monitored in real time in the coupling curing production process, and the production yield of the product is effectively obtained, so that the batch judgment characteristic is facilitated; the receiving end lens air clamp and the transmitting end lens air clamp are switched up and down to be respectively coupled, and respectively irradiated and cured without mutual interference; the appearance yield is improved, and the production efficiency is doubled.

Description

Full-automatic coupling solidification equipment of COB

Technical Field

The utility model relates to a full-automatic coupling solidification equipment of COB.

Background

COB technology is currently used for short-range communication optical module products using VCSEL chip arrays. The COB is a packaging form of directly binding the VCSEL on the PCB; coupling of the COB product is to fix the lens on the PCB board so that the light emitted vertically from the VCSEL can be reflected and emitted in parallel by the lens. Most of the conventional COB coupling stations are manually or semi-automatically coupled, and are manually fed, manually adjusted and optically coupled by a potential station; because the UV glue is smeared and the position of the solidified lens directly influences the luminous power and the sensitivity of the product, the controllable glue amount and the bonding of the lens and the surface of the PCB are emphasized; especially for products of 25G and 100G optical chip arrays, coupling needs operation and rich practical experience, 12 lenses or more lenses are arranged on the lenses, the positions of the lenses are adjusted according to the light power emitted by the chips after the PCB is powered on, and when the light power of each channel meets the requirement and is stable, the lenses are pre-fixed by UV (ultraviolet) glue; and then, curing the product qualified by pre-curing judgment, and smearing the reinforcing glue around the lens. Along with the rapid increase of the demand of the market on COB products, in order to deal with rich product types, the coupling solidification of a single-channel COB optical module and a multi-channel COB optical module is considered, and the efficiency and the yield of product output are ensured while the production process is followed; so far we propose full-automatic coupling curing of COBs.

Disclosure of Invention

In order to overcome prior art's shortcoming, the utility model provides a full-automatic coupling solidification equipment of COB.

The utility model adopts the technical proposal that: a COB full-automatic coupling solidification equipment includes: integrated automatically controlled frame of mesa formula and PCBA who sets up in the integrated automatically controlled frame of mesa formula go up anchor clamps subassembly, lens down anchor clamps subassembly, UV glue and paint subassembly, UV banks spare, peripheral glue and paint subassembly and CCD control judgment module, wherein:

the PCBA lower clamp component comprises a three-dimensional potential table group and a lower clamp component mounting table arranged on the three-dimensional potential table group, a PCB energizing cylinder, a PCB clamping cylinder, a limiting frame quick clamping base and a lens upper charging tray are arranged on the lower clamp component mounting table, the PCB energizing cylinder is connected with the energizing plate, a PCB limiting frame is arranged on the limiting frame quick clamping base, a PCB is arranged in the PCB limiting frame, and the PCB clamping cylinder is connected with a mechanical finger;

the anchor clamps subassembly includes that Z axle current potential platform, last anchor clamps support, air clamp go up lower cylinder, lens centre gripping cylinder and jump the ply-yarn drill, wherein: the Z-axis electric potential table is fixed in the table-board type integrated electric control frame, the upper clamp support is horizontally locked on the Z-axis electric potential table, two lens clamping cylinders are mounted on the upper clamp support through a T-shaped upper clamp mounting plate, the lens clamping cylinders are connected with a front clamping clamp and a rear clamping clamp, and the front clamping clamp and the rear clamping clamp are connected with an air clamp upper cylinder and a air clamp lower cylinder;

the UV glue smearing assembly comprises a needle cylinder air cylinder and a glue discharging air cylinder arranged on the needle cylinder air cylinder, a micro sliding table is arranged on the glue discharging air cylinder, and a UV glue needle cylinder is arranged on the micro sliding table;

the CCD monitoring and judging module comprises an auxiliary needle monitoring camera, a lens pre-curing position judging camera and a group of coaxial light sources;

the peripheral glue smearing assembly comprises a peripheral glue discharging assembly and a peripheral glue discharging cylinder arranged on the peripheral glue discharging assembly, and a peripheral glue cylinder with a 45-degree inclined needle head is arranged on the peripheral glue discharging cylinder.

Compared with the prior art, the utility model has the positive effects that:

combining two stations of coupling pre-curing and reinforcing peripheral adhesive coating into a table-top type automatic machine table of one working step; the product is pneumatically clamped, pneumatic power is applied, the lens and PCB mechanical flat pasting structure is compact and efficient, the product is driven by a high-precision potential table to accurately move, the repeated positioning precision is 0.5um, the light seeking coupling of different products can be ensured, the power-on parameter of the product is monitored in real time in the coupling curing production process, and the production yield of the product is effectively obtained, so that the batch judgment characteristic is facilitated; the receiving end lens air clamp and the transmitting end lens air clamp are switched up and down to be respectively coupled, and respectively irradiated and cured without mutual interference; the peripheral glue smearing range is obtained through CCD monitoring, so that the smearing effect of the peripheral reinforcing glue is optimized, and the appearance yield is improved; the automatic coupling device can be used for production under the direct participation of fewer people, so that the labor and efficiency are reduced, and the production efficiency is doubled.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a general view of a COB full-automatic coupling curing apparatus;

FIG. 2 is a schematic structural diagram of a COB full-automatic coupling curing apparatus;

FIG. 3 is a front view of a lower clamp assembly of the PCBA;

FIG. 4 is a top view of a lower clamp assembly of the PCBA;

FIG. 5 is a front view of the clamp assembly on the lens;

fig. 6 is a cross-sectional view of an end lens holding cylinder assembly;

FIG. 7 is a schematic structural diagram of a UV glue application assembly;

FIG. 8 is a schematic structural diagram of a CCD monitoring and judging module;

the reference numbers in the figures are: a table-board type integrated electric control frame 1, an electric control mounting board 2, a start-stop button 3, a UV glue and peripheral reinforced glue amount monitoring meter and an adjusting knob 4, a table automatic operation state indicator lamp 5, a UV lamp assembly 6, a PCBA lower clamp assembly 7, a lens upper clamp assembly 8, a UV glue smearing assembly 9, a peripheral glue smearing assembly 10, an X-axis potential table 11, a Y-axis potential table 12, a rotary potential table 13, a lower clamp assembly mounting table 14, a PCB board energizing cylinder 15, an energizing height adjusting block 16, a PCB board clamping cylinder 17, a limit frame quick clamping base 18, a PCB board limit frame 19, a PCB board 20, a mechanical finger 21, a linear slide rail 22, a lens feeding disc 23, an energizing plate 24, a Z-axis potential table 25, an upper clamp bracket 26, an air clamp upper and lower cylinder 27, a linear slide rail 28, a connecting block 29, a photoelectric sensor 30, a lens clamping cylinder 31, a hand screwed nut 32, an upper clamp mounting board 33, a lens assembly, the device comprises a front clamping fixture 34, a rear clamping fixture 34, a flat sticking bracket 35, a jumper clamp 36, a flat sticking block 37, a coupling jumper 38, a sending end lens 39, a UV glue syringe cylinder 40, a UV glue discharging cylinder 41, a UV glue syringe 42, a micro sliding table 43, a coaxial light source 44, a monitoring camera 45, a CCD image recognition camera 46, a peripheral glue discharging assembly 47, a peripheral glue discharging cylinder 48 and a peripheral glue needle point 49.

Detailed Description

A COB full-automatic coupling solidification device is shown in figure 1, wherein an electrical control mounting plate 2, a start-stop button 3, a UV glue and peripheral reinforced glue amount monitoring meter, an adjusting knob 4 and a machine automatic operation state indicator lamp 5 are arranged in a table type integrated electric control frame 1, and the table type integrated electric control frame 1 comprises an electrical control integrated plate, a bottom plate and an equipment frame; as shown in fig. 2, includes: PCBA lower clamp subassembly 7, lens go up clamp subassembly 8, UV glue and paint subassembly 9, UV banks spare 6, peripheral glue and paint subassembly 10 and CCD control judgement module, wherein:

the PCBA lower clamp assembly 7 comprises an X, Y, R shaft coupling potential table, and the PCB quick-release base is used for quick switching of PCB limiting frames with different sizes, a PCB centering clamping mechanism and a PCB automatic power-on mechanism. Detailed structure as shown in fig. 3 and 4, a potential table 11 with a stroke of 200mm is installed in a lower clamp component 7 of the PCBA as an X axis, a potential table 12 with a stroke of 30mm as a Y axis, a rotary potential table 13 with a stroke of 360 degrees as an R axis, and a lower clamp component installation table 14 is used for linking a potential table group with a lower clamp; selecting a corresponding PCB limiting frame 19 according to production materials and fixing the PCB limiting frame on a limiting frame quick clamping base 18; two groups of mechanical fingers 21 with 45-degree inclination angles on end surfaces are fixed on a PCB clamping cylinder 17, and a PCB power-on cylinder 15 is linked with a linear slide rail 22 to provide stable and adjustable linear motion for a power-on height adjusting block 16; the production material PCB 20 is placed into the PCB limiting frame 19, the lens is placed into the lens feeding disc 23, the PCB clamping cylinder 17 acts first, the material is centered and clamped, the PCB acts after the power cylinder 15 is powered on, the power plate 24 is powered on to be in butt joint with the material, and the material electrical parameter is read.

And the upper lens clamp assembly 8 comprises a Z-axis coupling potential table, a lens clamping seat angle switching mechanism, linear slide rails connected with a left lens clamping cylinder and a right lens clamping cylinder and controlled by two independent cylinders respectively, and an elastic leveling mechanism and a leveling overload protection photoelectric sensor. Detailed structure as shown in fig. 5 and fig. 6, a potential table 25 with a stroke of 50mm is fixed in the integrated frame 1 as a Z-axis; the upper clamp bracket 26 is horizontally locked on the Z-axis sliding table, a hand-screwed nut 32 penetrates through the upper clamp bracket 26 matched with the shaft hole, and the T-shaped upper clamp mounting plate 33 is pulled to be tightly attached to the lower surface of the upper clamp bracket 26; the clamping cylinders 31 which are responsible for grabbing the lens at the receiving end and the lens at the transmitting end are respectively arranged on two sides of the T-shaped upper clamp mounting plate 33, different product protocols are adopted, the positions of the lenses fixed on the PCB are different, the two lens clamping cylinders 31 need to respectively act, the lens clamping cylinders 31 are fixed on the sliding blocks of the linear sliding rails 28 through the connecting blocks 29, the upper air clamp and the lower air clamp 27 provide actions to enable the two air clamps to respectively move up and down, the photoelectric sensors 30 arranged on the connecting blocks 29 provide signals for the clamping cylinders to move up and down in place, and the lens air clamps at the receiving end and the transmitting end are guaranteed to be taken and placed without mutual interference.

Fig. 6 is a cross-sectional view of an originating lens clamping cylinder assembly, showing the working principle of lens picking and placing in detail, taking an originating lens 39 as an example, a lens feeding tray 23 is used for feeding an adaptive lens, a front and a rear clamping fixtures 34 designed according to the appearance characteristics of the lens are used for finding characteristic bayonet positions and moving the bayonet positions to a feeding position, an air clamp upper and lower air cylinder 27 is used for controlling an air clamp of the front and the rear clamping fixtures 34 to be pressed down to a flatting block 37 fixed on a flatting bracket 35 for elastic deformation, then a lens clamping air cylinder 31 is used for controlling the front and the rear clamping fixtures 34 to pneumatically clamp the lens, a potential table module is flatly moved to a coupling original position, the front and the rear clamping fixtures 34 are used for controlling the opening of the air clamp by the lens clamping air cylinder 31, the elastic deformation of the flatting block 37 is completely released when the Z axis is lifted, the front and the rear clamping fixtures 34 are used for, the grabbing flatness of the lens at the receiving end is the same as that of the lens at the sending end; and pressing the jumper wire card 36 to insert the coupling jumper wire 38, and starting X, Y dual-axis optical seeking coupling.

After the light seeking coupling is qualified, memorizing qualified coordinates, ascending a Z axis, translating a potential table module to the position of a UV glue smearing module 9, wherein the UV glue smearing module 9 comprises a needle head glue outlet position micro-motion adjusting frame and two cylinders in front and at the back of a segmented control needle cylinder, the detailed structure is shown in figure 7, the UV glue needle cylinder 40 extends out, the UV glue outlet cylinder 41 is sequentially started to control the glue outlet of the UV glue needle cylinder 42 according to the four coordinates of the coupling lens qualified position array, the proper distance between a UV glue needle point and a PCB (printed circuit board) is adjusted through a micro-motion sliding table 43, and the UV glue point is ensured to be uniform and full by referring to a high-magnification monitoring camera 45; after the UV dispensing is reset, the potential station module returns to the qualified memory position of the light searching coupling again, the accurate coupling is started, after the UV lamp assembly 6 (comprising 4 groups of UV curing ultraviolet lamp heads, lamp head adjusting frames and light shields) is qualified, the UV lamp assembly starts to automatically irradiate and cure UV glue, then the clamp chucks on corresponding channels are loosened, and after the coupling, the dispensing and the curing of two channels in one product are repeated, the potential station moves to the position below the CCD image recognition camera.

The CCD monitoring and judging module comprises an auxiliary needle-aiming monitoring camera and a lens, a lens pre-curing position judging camera and a group of coaxial light sources; the peripheral glue smearing component 10 is used for smearing glue by automatically correcting after the relative position of a lens and a PCB is determined by a CCD (charge coupled device) of a product which is subjected to UV pre-curing and qualified judgment, and the cylinder with a 45-degree inclined needle head is driven by an air cylinder to vertically discharge the glue. As shown in fig. 8, in the image recognition area, the coaxial light source 44 lights, the CCD image recognition camera 46 on the upper side automatically takes a picture, and the electric potential table is adjusted to analyze the peripheral glue smearing path through image analysis; the potential table module is translated to the position below a peripheral glue discharging assembly 47, a peripheral glue discharging cylinder 48 is extended out firstly, strengthening glue is smeared between the lenses of the two channels, then the R shaft is rotated to smear the strengthening glue on the two sides of the lenses, a peripheral glue needle point 49 with an inclination angle of 45 degrees discharges glue and is smeared on the edges of the lenses and the PCB, and the potential table module returns to the initial position to disassemble and assemble a second product.

The method for coupling and curing by adopting the device comprises the following steps:

step one, feeding

Selecting a jig corresponding to a manufactured product, respectively loading a lens and a PCB into a lens upper tray 23 and a PCB limiting frame 19 of a limiting frame quick clamping base 18, pressing an interface button to control a PCB clamping cylinder 17 to act, moving a left clamping air clamp (a mechanical finger 21) and a right clamping air clamp (a PCB energizing cylinder 15) to a set position to clamp the PCB 20 in a centering way, and pneumatically energizing the energizing plate 24 by the PCB energizing cylinder 15;

step two, pre-curing after flatting, light searching, dispensing, coupling and judging

Pressing a starting switch, firstly detecting that the material electrification test communication is normal, and moving a lower clamp three-dimensional sliding table (an X-axis potential table 11, a Y-axis potential table 12 and a rotary potential table 13) to a set coordinate preparation position; the Z-axis potential table 25 descends to drive the lens clamping cylinder 31 to control the front and rear clamping fixtures 34 to clamp the lens to be completely contacted with the PCB 20 clamped by the lower fixture, the lens clamping air clamp is loosened, the elastic pressure rod pressed above the lens is released to enable the lens to be relatively parallel to the PCB, and then the lens clamping air clamp is controlled to act to clamp the lens again; the Z axis is lifted by a fixed distance of 0.01mm, an X, Y potential table starts rapid light seeking, coordinates are memorized after the light seeking is qualified, a potential table group is translated to a set dispensing preparation position, a UV glue coating assembly moves to a dispensing position according to the light seeking qualified position, 4 points of UV glue are dispensed below each lens, and the module returns to a coupling position for fine coupling after the dispensing resetting; after the product is qualified, automatically starting a UV lamp to irradiate to complete pre-curing, then loosening an upper clamp, monitoring the change rate of the number of the receiving and sending ends of the product before and after irradiation, driving an upper clamp assembly to ascend by a Z axis, and driving a lower clamp assembly to move to a CCD identification area by an X axis;

step three, smearing reinforced glue for automatic shooting, image analysis and adjustment of CCD

The lens pre-curing position judgment camera 45 and the coaxial light source 44 are perpendicular to the pre-cured product, and the CCD image recognition camera 46 accurately calculates the relative positions of the lens and the PCB after photographing; the lower clamp assembly moves to a peripheral glue smearing area, the glue smearing point of a peripheral glue needle head is adjusted according to image recognition, the needle head is fixed, and 3 pieces of peripheral strengthening glue are evenly smeared in the length direction of the lens and the PCB by moving a Y axis and an R axis; then the PCB clamping air clamp is released, and the electric potential table returns to the initial position to disassemble and assemble a next product.

Compared with the background art, the utility model has the positive effects that:

1. a single device can produce multiple products, the clamping fixtures are quickly switched, and the utilization rate of the device is increased;

2. the simple and efficient mechanical flattening structure is used for positioning and defocusing offset control before product light searching coupling, and the problem of uneven gaps between the lens and the PCB after product curing is solved. After being flattened, the lens is lifted out of focus, the diameter of a light spot is increased, the coupling light-seeking speed is improved, the production efficiency is improved, and the appearance standard is ensured;

3. full-automatic coupling point is glued, glues precuring and the peripheral coating integration in an equipment with two process steps and UV and strengthens gluing, reduces material handling, uses the home-made 45 syringe needle to guarantee that the rubber coating is stable and unanimous, and the syringe needle is glued independently fixedly with the rubber tube to the point, changes the packing element, does not influence the needle point position.

Claims

1. The utility model provides a full-automatic coupling solidification equipment of COB which characterized in that: including the integrated automatically controlled frame of mesa formula and set up PCBA in the integrated automatically controlled frame of mesa formula down anchor clamps subassembly, the lens on anchor clamps subassembly, UV glue paint subassembly, UV banks spare, peripheral glue paint subassembly and CCD control judgment module, wherein:

2. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: the three-dimensional potential table group comprises an X-axis potential table, a Y-axis potential table and a rotary potential table, wherein the stroke of the X-axis potential table is 200mm, the stroke of the Y-axis potential table is 30mm, and the stroke of the rotary potential table is 360 degrees.

3. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: the linear sliding rail is arranged on the lower clamp component mounting table, the power-on height adjusting block is arranged on the linear sliding rail, and the power-on plate is arranged on the power-on height adjusting block.

4. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: the lens clamping device is characterized in that a linear slide rail is arranged on the lens upper clamp assembly, and the lens clamping cylinder is fixed on a slide block of the linear slide rail through a connecting block.

5. The COB full-automatic coupling solidification equipment of claim 4, characterized in that: and a photoelectric sensor is arranged on the connecting block.

6. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: a flatting support is arranged on the lens upper clamp assembly, and a flatting block is arranged on the flatting support.

7. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: the UV lamp assembly includes four adjustable UV curing UV lamp heads.

8. The COB full-automatic coupling solidification equipment of claim 1, characterized in that: the stroke of the Z-axis potential table is 50 mm.