CN209911606U - Lens coupling system - Google Patents

Lens coupling system Download PDF

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Publication number
CN209911606U
CN209911606U CN201920480151.XU CN201920480151U CN209911606U CN 209911606 U CN209911606 U CN 209911606U CN 201920480151 U CN201920480151 U CN 201920480151U CN 209911606 U CN209911606 U CN 209911606U
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China
Prior art keywords
lens
glue
chip
image detection
cup
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CN201920480151.XU
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Chinese (zh)
Inventor
段吉安
卢昆忠
唐佳
卢胜强
徐聪
苏文毅
胡慧璇
黄思琪
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Central South University
Wuhan Raycus Fiber Laser Technologies Co Ltd
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Central South University
Wuhan Raycus Fiber Laser Technologies Co Ltd
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Priority to CN201920480151.XU priority Critical patent/CN209911606U/en
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Abstract

The utility model relates to an optical device installs the field, discloses a lens coupled system, include: the grabbing mechanism is used for grabbing the lenses in the material tray; the space displacement mechanism is connected with the grabbing mechanism and used for driving the lens to move so as to be in contact with the glue dispensing mechanism for dispensing and moving the dispensed lens to be attached to the chip; the curing mechanism is arranged above the chip and used for curing glue between the lens and the chip; the positioning subsystem comprises a first image detection mechanism, and the first image detection mechanism is arranged above the material tray and used for obtaining position information of the lenses in the material tray. The utility model provides a pair of lens coupled system can accomplish lens and chip coupling automatically, and sets up the accurate positional information that first image detection mechanism can obtain lens on the charging tray to make snatch the mechanism can be smooth accurate snatch lens, this system degree of automation is higher, reducible intensity of labour, and can fix a position lens raise the efficiency and the accuracy.

Description

Lens coupling system
Technical Field
The utility model relates to an optical device installs the field, especially relates to a lens coupled system.
Background
The semiconductor laser is a P-N junction diode with optical feedback function using semiconductor material as working substance, and compared with solid laser and gas laser, it has the advantages of compact structure, high reliability, high efficiency and stability, etc., and has been widely used in the industries of machining, material processing, weapon manufacturing and laser display, etc. Semiconductor lasers have special light-emitting characteristics, and the output laser light cannot be directly applied in practice generally and must be shaped, converted and collimated. Therefore, since the birth of the semiconductor laser, a coupling problem of the semiconductor laser occurs. The so-called coupling process is mainly aimed at the part with stronger central light intensity, and compresses and collimates the light of other parts to obtain more concentrated power and better quality laser output.
In the coupling process, a lens is usually used to adjust the characteristics of the light beam, i.e., the lens needs to be attached to a light emitting chip of the semiconductor laser, and the light emitted by the semiconductor laser is converged and collimated by the lens. Due to the small geometry of the lens, the coupling positioning of the lens is difficult.
Most of the existing lens couplings need to manually attach the lens to the chip, so that the efficiency and the accuracy are low, and the labor intensity is high.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing a lens coupled system for solve or partially solve the present lens coupling and need the manual work mostly to laminate lens on the chip, efficiency and rate of accuracy are lower, and the great problem of intensity of labour.
(II) technical scheme
In order to solve the above technical problem, the utility model provides a lens coupling system, include: the device comprises a grabbing mechanism, a spatial displacement mechanism, a glue dispensing mechanism, a curing mechanism and a positioning subsystem; the grabbing mechanism is used for grabbing the lenses in the material tray; the space displacement mechanism is connected with the grabbing mechanism and used for driving the lens to move so as to be in contact with the glue dispensing mechanism for dispensing glue and moving the dispensed lens to be attached to a chip; the curing mechanism is arranged above the chip and used for curing glue between the lens and the chip; the positioning subsystem comprises a first image detection mechanism, and the first image detection mechanism is arranged above the material tray and used for obtaining position information of the lenses in the material tray.
On the basis of the scheme, the spatial displacement mechanism comprises at least one of an X-axis sliding table and a Y-axis sliding table and a Z-axis sliding table; and at least one of an X-axis angular displacement stage, a Y-axis angular displacement stage, and a Z-axis angular displacement stage.
On the basis of the scheme, a swing cylinder is arranged between the grabbing mechanism and the spatial displacement mechanism, the spatial displacement mechanism is connected with a shell of the swing cylinder, and an output shaft of the swing cylinder is connected with the grabbing mechanism.
On the basis of the scheme, the method further comprises the following steps: a limiting block and a mounting seat; the limiting block is arranged between the swing cylinder and the grabbing mechanism, one side of the limiting block is connected with a shell of the swing cylinder, the grabbing mechanism is fixedly connected with the mounting seat, and the mounting seat is connected with an output shaft of the swing cylinder on the other side of the limiting block; the mounting seat with one side that the stopper meets is connected and is set up the locating pin, the opposite side of stopper is provided with the constant head tank, the locating pin inserts in the constant head tank.
On the basis of the scheme, the grabbing mechanism comprises an upper chuck, a lower chuck and a driving mechanism; the clamping jaw is arranged downwards, the clamping jaw of the upper clamping jaw and the clamping jaw of the lower clamping jaw are arranged oppositely, and the driving mechanism is used for driving the clamping jaw of the upper clamping jaw and the clamping jaw of the lower clamping jaw to move oppositely or back to back.
On the basis of the scheme, the glue dispensing mechanism comprises a glue needle assembly and a glue cup; the glue needle assembly is arranged above the glue cup, the opening of the glue cup is upward, and the glue needle assembly is inserted into the glue cup to obtain glue; the glue needle assembly comprises two glue needles which are arranged in parallel, the bottom ends of the two glue needles are positioned on the same horizontal plane, and the distance between the two glue needles is smaller than the width of the cross section of the cup cylinder of the glue cup.
On the basis of the above scheme, the glue dispensing mechanism further comprises: the air cylinder device comprises a rubber cup base, a first air cylinder arranged horizontally and a second air cylinder arranged vertically; the first air cylinder is connected with the rubber needle assembly and used for pushing the rubber needle assembly to move horizontally; the glue cup is arranged on the glue cup base, the second air cylinder is connected with the glue cup base, and the second air cylinder is used for pushing the glue cup to move up and down so that the glue needle assembly is inserted into the glue cup.
On the basis of the scheme, a sliding groove is formed in the rubber cup base and is arranged in the horizontal direction perpendicular to the moving direction of the first air cylinder, and the cup bottom of the rubber cup is connected with the sliding groove in a sliding mode.
On the basis of the above scheme, the curing mechanism includes: a plurality of UV lamp heads; the plurality of UV lamp holders form included angles with each other, the light emitting ends are arranged in a converging manner, and light beams emitted by the plurality of UV lamp holders are intersected at one point; and the second end of the UV lamp holder, which is far away from the light-emitting end, is connected with a connecting plate, and the connecting plate is used for fixing the UV lamp holder.
On the basis of the scheme, the connecting plates connected with the UV lamp caps are connected to form an integrally-formed mounting plate, the mounting plate is of a bent structure, one side of the mounting plate, which deviates from the UV lamp caps, is connected with the radiating fins, and the radiating fins are arranged at intervals and are parallel to each other.
On the basis of the scheme, at least one lens placing groove is arranged on the material tray, a first through hole is formed in the middle of the bottom of the lens placing groove, and a second through hole is formed in the bottom of the lens placing groove at least one end of the lens; a first light source is arranged below the material tray and faces the material tray; the material tray is placed on a first sample platform, and third through holes are formed in the positions, corresponding to the first through holes and the second through holes, of the first sample platform; the bottom of first sample platform is provided with first guiding mechanism, first guiding mechanism includes X axle and Y axle moving platform.
On the basis of the above scheme, the positioning subsystem further comprises: a second image detection means and a third image detection means; the second image detection mechanism is arranged above the chip and used for collecting images of the chip and the lens from the upper side, and a second light source facing the chip is arranged on the second image detection mechanism; the third image detection mechanism is arranged on one side of the chip and used for collecting images of the chip and the lens from the side surface, and a third light source is arranged on the other side of the chip; the second image detection mechanism and the third image detection mechanism are used for positioning the attaching process of the lens and the chip; the first image detection mechanism, the second image detection mechanism and the third image detection mechanism are respectively electrically connected with the spatial displacement mechanism; the first image detection mechanism, the second image detection mechanism and the third image detection mechanism respectively comprise an industrial camera.
On the basis of the scheme, the chip is placed on the base; the base is provided with step surfaces which correspond to the chips one by one along the length direction; the chip is vertically arranged at one end of the step surface; the base is placed on a second sample table, and a second adjusting mechanism is arranged at the bottom of the second sample table; the second adjusting mechanism comprises a horizontal moving platform and a vertical moving platform along the length direction of the base.
On the basis of the above scheme, the positioning subsystem further comprises: the light spot detection mechanism comprises probes and a probe which are oppositely arranged on two sides of the chip, and the probes are used for contacting the chip so as to electrify the chip to emit light beams; the probe is used for detecting a light spot formed by the light beam; the probe is electrically connected with the spatial displacement mechanism, and the spatial displacement mechanism adjusts the pose of the lens according to the state of the light spot.
(III) advantageous effects
The utility model provides a pair of lens coupled system can accomplish each technology of lens and chip coupling process automatically, and sets up the accurate positional information of lens on the image acquisition charging tray of first image detection mechanism accessible collection charging tray to make snatch the mechanism can be smooth accurate snatch lens, this system degree of automation is higher, reducible intensity of labour, and can fix a position lens raise the efficiency and the accuracy.
Drawings
Fig. 1 is a first schematic diagram of a lens coupling system according to an embodiment of the present invention;
fig. 2 is a second schematic diagram of a lens coupling system according to an embodiment of the present invention;
fig. 3 is a schematic view of a spatial displacement mechanism according to an embodiment of the present invention;
fig. 4 is a schematic view of a mounting seat in an embodiment of the present invention;
FIG. 5 is a schematic view of a stopper in an embodiment of the present invention;
fig. 6 is a schematic view of a gripping mechanism in an embodiment of the present invention;
fig. 7 is a first schematic view of a glue dispensing mechanism in an embodiment of the present invention;
fig. 8 is a second schematic view of the glue dispensing mechanism in the embodiment of the present invention;
FIG. 9 is a schematic view of the connection between the rubber cup and the rubber cup holder according to the embodiment of the present invention;
FIG. 10 is a schematic view of a wafer in an embodiment of the present invention;
fig. 11 is a schematic view of a curing mechanism in an embodiment of the present invention;
FIG. 12 is a schematic view of a tray in an embodiment of the present invention;
fig. 13 is a schematic diagram of a relative position relationship between the lens holding groove and the lens in the embodiment of the present invention;
fig. 14 is a schematic view of the adjustment process of the chuck in an embodiment of the present invention;
fig. 15 is a schematic diagram of an adjusting process of coupling between a target lens and a chip obtained by the second image detection mechanism in the embodiment of the present invention;
fig. 16 is a schematic diagram of an adjusting process of coupling between the target lens and the chip obtained by the third image detection mechanism in the embodiment of the present invention.
Description of reference numerals:
1-glue dispensing mechanism; 101-a glue needle assembly; 102-a rubber cup;
103-a rubber cup seat; 104 — a first cylinder; 105-a second cylinder;
106-tabletting; 1021, a cup cylinder; 1022-cup bottom;
1031-chute; 2-a curing mechanism; 201-UV lamp cap;
202-light beam; 203-a heat sink; 204 — a first side;
205 — a second side; 206-power line; 207-fixing plate;
31-a gripping mechanism; 32-spatial displacement mechanism; 33-a swing cylinder;
34, a limiting block; 35-a mounting seat; 36-positioning pin;
311-upper chuck; 312-lower chuck; 313 — a jaw;
314-slotting; 315-air claw cylinder; 316-gas claw;
321-an X-axis slide; 322-Z axis slide; 323-Y axis angular displacement platform;
341 positioning grooves; 3131 — chuck first position; 325-Z axis angular displacement platform;
342-an opening; 3132 — chuck second position; 324-X axis angular displacement stage;
51-lens placement groove; 3134 — chuck fourth position; 4-a first image detection mechanism;
5, a material tray; 3133 — chuck third position; 52 — a first via;
53-second via; 54-a T-shaped slot; 6-first sample table;
7-a first adjustment mechanism; 10-a base; 8-second image detection means;
11-second sample stage; 12-a second adjustment mechanism; 9-third image detection means;
13-a probe; 14-a probe; 15-synchronous band group;
16-a frame; 17-a support table; 18-a three-dimensional adjusting bracket;
19-a target lens; 20-a gripping position; 1901 — lens first position;
22-chip mounting location; 21-target chip; 1902-lens second position;
1903 — lens third position; 1904-lens fourth position.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the embodiment of the present invention, there is provided a lens coupling system, referring to fig. 1 and 2, the system including: the device comprises a grabbing mechanism 31, a spatial displacement mechanism 32, a glue dispensing mechanism 1, a curing mechanism 2 and a positioning subsystem. The gripping mechanism 31 is used for gripping the lenses in the tray 5. The space displacement mechanism 32 is connected to the grabbing mechanism 31 and is used for driving the lens to move to contact with the dispensing mechanism 1 for dispensing and moving the dispensed lens to be attached to the chip.
The curing mechanism 2 is disposed above the chip for curing the glue between the lens and the chip. The positioning subsystem comprises a first image detection mechanism 4, and the first image detection mechanism 4 is arranged above the material tray 5 and used for obtaining the position information of the lenses in the material tray 5.
In the lens coupling system provided in this embodiment, the spatial displacement mechanism 32 can drive the grabbing mechanism 31 to perform spatial movement. The grasping mechanism 31 is a member that primarily comes into contact with the lens to grasp and fix the lens. The lenses are initially placed on the tray 5. First, the space displacement mechanism 32 moves the gripping mechanism 31, and the gripping mechanism 31 grips the lens from the tray 5.
Then the space displacement mechanism 32 drives the grabbing mechanism 31 and the lens to move until the dispensing mechanism 1 dispenses the lens. Then the space displacement mechanism 32 drives the grabbing mechanism 31 and the lens to move to the chip placing position, and the lens is attached to the chip. The lens is jointed with the chip into a whole through glue. After the lens is attached to the upper chip, the curing mechanism 2 arranged above the chip cures the glue, so that firm attachment of the lens and the chip is realized.
The first image detection mechanism 4 is arranged above the material tray 5, and can acquire the image of the material tray 5, so that the accurate position information of the lens in the material tray 5 can be obtained according to the image. Further, the spatial displacement mechanism 32 is controlled to move according to the position information, so that the grasping mechanism 31 can grasp the lens smoothly and accurately.
The lens coupling system provided by the embodiment can automatically complete each process of the coupling process of the lens and the chip, and the first image detection mechanism 4 can acquire the accurate position information of the lens on the material tray 5 through acquiring the image of the material tray 5, so that the grabbing mechanism 31 can smoothly and accurately grab the lens, the system has higher automation degree, can reduce the labor intensity, can position the lens, and improves the accuracy.
On the basis of the above-described embodiment, further, referring to fig. 3, the spatial displacement mechanism 32 includes at least one of the X-axis slide table 321 and the Y-axis slide table, and the Z-axis slide table 322; and at least one of an X-axis angular displacement stage 324, a Y-axis angular displacement stage 323, and a Z-axis angular displacement stage 325.
The X-axis slide table 321, the Y-axis slide table and the Z-axis slide table 322 can realize the spatial linear movement of the gripping mechanism 31. The spatial displacement mechanism 32 may include linear electric slides in three directions, or may be provided with only linear electric slides in a vertical direction and a horizontal direction. The number of the sliding tables can be set according to the position where the grabbing mechanism 31 needs to move in the process of clamping the lens, dispensing and attaching, and is not limited.
Taking the example of providing linear electric slide tables in three directions, the spatial displacement mechanism 32 includes an X-axis slide table 321, a Y-axis slide table, and a Z-axis slide table 322. The spatial displacement mechanism 32 may be provided on a fixed support table 17, on one side of the tray 5. The connection structure of X axle slip table 321, Y axle slip table and Z axle slip table 322 is: the X-axis sliding table 321 can be fixedly arranged and can be fixedly connected with the supporting table 17. The Y-axis sliding table is connected with a sliding block of the X-axis sliding table 321, and the X-axis sliding table 321 can drive the Y-axis sliding table to move linearly along the X-axis direction;
z axle slip table 322 can link to each other with the slider of Y axle slip table, and Y axle slip table can drive Z axle slip table 322 and do rectilinear movement along Y axle direction. Meanwhile, the Z-axis sliding table 322 and the Y-axis sliding table can be driven by the X-axis sliding table 321 to move linearly along the X-axis direction.
A gripping mechanism 31 may be provided in connection with the slide block of the Z-axis slide table 322. The grabbing mechanism 31 can move linearly along the Z-axis direction under the driving of the Z-axis sliding table 322. The spatial displacement mechanism 32 thus enables the gripping mechanism 31 to perform linear movements in three directions.
The arrangement of the sliding table also facilitates accurate positioning of the displacement of the gripping mechanism 31. The grabbing mechanism 31 can be moved to a preset position through the sliding table, so that the lens is convenient to move. Make through the slip table and snatch mechanism 31 and can remove to required position department along predetermineeing the orbit, be convenient for press from both sides the lens and get, some glue and laminate and place.
Because the lens is mostly manually placed in the tray 5 during the process of clamping the device, for example, when the lens is clamped in the process of attaching the lens to the chip. Manual placement does not guarantee that each lens is placed at a preset position without any deviation. There is inevitably some angular deviation of the lens from the predetermined position.
Therefore, the angular displacement platform is arranged and used for driving the grabbing mechanism 31 to deflect and move, so that the lens is adaptive to the angular deviation of the lens, and the lens can be smoothly clamped. The angular displacement platform in three directions can be arranged to rotate around the three directions respectively, the angular displacement platform in two directions can be arranged, and the angular displacement platform in one direction can be arranged.
The number of the angular displacement platforms can be set according to specific needs, and is not limited. Further, for example, an angular displacement platform in three directions is provided, that is, an X-axis angular displacement platform 324, a Y-axis angular displacement platform 323, and a Z-axis angular displacement platform 325 are provided at the same time. The X-axis angular displacement stage 324 can provide a rotational motion about the X-axis.
The connecting structure of the X-axis angular displacement platform 324, the Y-axis angular displacement platform 323 and the Z-axis angular displacement platform 325 is as follows: the X-axis angular displacement platform 324 can be connected with a slide block of the Z-axis sliding table 322; the Y-axis angular displacement platform 323 can be connected with the rotating block of the X-axis angular displacement platform 324; the Z-axis angular displacement platform 325 is connected with the rotating block of the Y-axis angular displacement platform 323; the drive mechanism may be coupled to a rotating block of the Z-axis angular displacement stage 325.
The grabbing mechanism 31 can realize rotary movement around three directions under the driving of the angular displacement platform, so that the lens clamping device can adapt to the deflection of the lens angle and guarantee smooth lens clamping. Further, the X-axis sliding table 321, the Y-axis sliding table and the Z-axis sliding table 322 all include displacement sensors. The X-axis angular displacement stage 324, the Y-axis angular displacement stage 323, and the Z-axis angular displacement stage 325 each include an angle sensor. To facilitate controlled adjustment of the movement of the space displacement mechanism 32.
On the basis of the above embodiment, further, referring to fig. 3, a swing cylinder 33 is provided between the gripping mechanism 31 and the spatial displacement mechanism 32. The spatial displacement mechanism 32 is connected to a housing of the swing cylinder 33, and an output shaft of the swing cylinder 33 is connected to the grasping mechanism 31.
The swing cylinder 33 is a cylinder capable of providing rotational motion about an output shaft. The swing air cylinder 33 is arranged, the grabbing mechanism 31 and the lens can be rotated after the grabbing mechanism 31 grabs the lens, so that the bottom surface of the lens faces to different directions, the lens is convenient to adapt to chips in different directions, and the lens is smoothly attached to the chip.
On the basis of the above embodiment, further, referring to fig. 3, a lens coupling system further includes: a stopper 34 and a mounting seat 35. The stopper 34 is provided between the swing cylinder 33 and the grasping mechanism 31. One side of the stopper 34 is connected to the housing of the swing cylinder 33. The grabbing mechanism 31 is fixedly connected with the mounting seat 35. The mounting seat 35 is connected to the output shaft of the swing cylinder 33 at the other side of the stopper 34. And a positioning pin 36 is connected to one side of the mounting seat 35 connected with the limiting block 34. The other side of the stopper 34 is provided with a positioning groove 341. The positioning pin 36 is inserted into the positioning groove 341.
The limiting block 34 is used for limiting the angle of the swing cylinder 33 for driving the grabbing mechanism 31 to swing. The swing cylinder 33 is located on one side of the stopper 34, and the grasping mechanism 31 is located on the other side of the stopper 34. The stopper 34 is connected to the housing of the swing cylinder 33, and the stopper 34 does not rotate with the rotation of the output shaft of the swing cylinder 33. The grasping mechanism 31 is rotated integrally with the output shaft of the swing cylinder 33.
When the swing cylinder 33 drives the grabbing mechanism 31 to integrally rotate, the limiting block 34 can block the grabbing mechanism 31 from rotating, so as to control the swing angle of the grabbing mechanism 31. The swing cylinder 33 is arranged mainly for adapting to the position of the chip during the lens attachment, and the limit block 34 can be specifically arranged according to the requirement of the actual chip position, so that the attachment requirement can be met by the grabbing mechanism 31 and the rotation angle of the lens under the limitation of the limit block 34.
Referring to fig. 4, a mounting seat 35 is provided to facilitate the fixing of the gripping mechanism 31 and the connection of the gripping mechanism 31 to the swing cylinder 33. The mounting seat 35 and the grasping mechanism 31 are integrally rotated by the swing cylinder 33. Referring to FIG. 5, the stop 34 may be a block-like structure. An opening 342 may be formed in the middle of the stopper 34, so that the output shaft of the swing cylinder 33 passes through the stopper 34 through the opening 342 and is connected to the mounting seat 35. The stop block 34 can be fixedly connected to the housing of the pivot cylinder 33 at an edge position.
The other side of the stop block 34, i.e. the side facing away from the pivot cylinder 33, is connected to a mounting seat 35. The positioning pin 36 is fixedly connected to one side of the mounting seat 35 connected to the limiting block 34, and the positioning pin 36 may be a shaft-like structure or a block-like structure, and may be a structure protruding out of the surface of the mounting seat 35. The positioning pin 36 is rotated integrally with the mount 35 by the swing cylinder 33.
The other side of the stopper 34 is provided with a positioning groove 341. The positioning groove 341 may be provided in the rotation direction of the positioning pin 36. So that the positioning pin 36 can smoothly rotate in the positioning groove 341. The groove edge of the positioning groove 341 can block the rotation of the positioning pin 36, thereby limiting the rotation of the grabbing mechanism 31. The groove angle of the positioning groove 341, that is, the angle allowing the positioning pin 36 to rotate, may be set according to the position where the lens is required to rotate, and is not limited.
Further, in the process of attaching the lens to the chip, the lens is generally placed flat on a horizontal plane, and the chip is placed vertically. When the grasping mechanism 31 grasps the lens, the bottom surface of the lens faces downward. When attaching the lens to the chip, the bottom surface of the lens needs to face the chip, that is, the bottom surface of the lens needs to be placed vertically.
At this time, the groove angle of the positioning groove 341 may be 90 °, that is, the included angle between the groove edges at the two sides of the positioning groove 341 is 90 °. The positioning pin 36 is initially located at one side of the positioning groove 341. So that the positioning groove 341 can limit the rotation of the grabbing mechanism 31 and the lens by 90 ° when the swing cylinder 33 rotates the grabbing mechanism 31. The bottom surface of the lens is rotated to be in a vertical state, so that the lens is convenient to attach to a chip.
Further, the stopper 34 may be of other structures to limit the rotation angle of the grabbing mechanism 31. For example, a stopper 34 may be disposed on a rotation path of the grasping mechanism 31, and the rotation angle may be controlled by blocking the rotation of the grasping mechanism 31 by the stopper 34. The specific structure of the stopper 34 is not limited.
On the basis of the above embodiment, further, referring to fig. 6, the gripping mechanism 31 includes an upper chuck 311, a lower chuck 312, and a driving mechanism. One ends of the upper and lower chucks 311 and 312 are connected to a driving mechanism, respectively. The other ends of the upper and lower jaws 311 and 312, respectively, are vertically connected to the jaws 313. The jaws 313 are disposed downwardly and the jaws 313 of the upper jaw 311 are disposed opposite the jaws 313 of the lower jaw 312. The driving mechanism is used for driving the clamping jaws 313 of the upper clamping head 311 and the clamping jaws 313 of the lower clamping head 312 to move towards or away from each other.
The upper collet 311 and the lower collet 312 may be respectively plate-shaped or rod-shaped, and the specific shape is not limited. Upper jaw 311 is connected to a drive mechanism at one end and to jaw 313 at the other end, vertically extending downwardly such that upper jaw 311 and jaw 313 are generally L-shaped. Similarly, lower jaw 312 is connected to the drive mechanism at one end and to jaw 313 at the other end, vertically downward, such that lower jaw 312 and jaw 313 are generally L-shaped.
The upper clamp 311 is located above the lower clamp 312 and can be vertically parallel to the lower clamp 312. The upper clamp 311 and the lower clamp 312 may contact each other, or a gap may exist therebetween. The clamping jaws 313 of the upper clamping head 311 and the clamping jaws 313 of the lower clamping head 312 are vertically arranged and are parallel to each other. The driving mechanism may move the upper clamp 311 and/or the lower clamp 312, so as to change the distance between the two clamping jaws 313. Placing a device to be clamped, namely a lens, between the two clamping jaws 313, and clamping the device by moving the two clamping jaws 313 oppositely; the two jaws 313 move away from each other, releasing the device.
Further, the bottom surfaces of the two jaws 313 should be flush; i.e. at the same level. The clamping device is convenient to clamp devices placed on a horizontal plane, so that smooth clamping of the devices is guaranteed.
The drive mechanism includes: a pneumatic gripper cylinder 315; the air claw cylinder 315 includes two air claws 316 parallel to each other, and the two air claws 316 are respectively connected to one ends of the upper clamp 311 and the lower clamp 312 in a one-to-one correspondence.
The two air jaws 316 of the air jaw cylinder 315 are connected to one end of the upper jaw 311 and the other end of the lower jaw 312. The pneumatic claw cylinder 315 can drive the two pneumatic claws 316 to move toward or away from each other, and further drive the upper chuck 311 and the lower chuck 312 to move toward or away from each other, so as to meet the clamping requirement.
Further, the driving mechanism may also be configured as other mechanisms, and is not limited specifically. For example, the drive mechanism may also be a slide rail and a motor; one of the upper and lower clamps 311, 312 may be fixedly connected to the slide rail and the other may be slidably connected to the slide rail. The chuck connected with the slide rail in a sliding way is connected with a motor, and the motor can drive the chuck to move along the slide rail. So that the distance between the chuck and the other chuck can be adjusted by the motor for clamping. The motor can adopt a cylinder or a belt conveyor and the like, and is not limited specifically.
The middle part of the clamping jaw 313 is provided with a slot 314 with a downward opening. The holding jaw 313 is a member that comes into contact with the lens. When gripping the lens, the two jaws 313 are located on both sides of the lens. Slots 314 are provided in each jaw 313 to allow the jaws 313 on either side of the lens to contact two locations of the lens.
Not only can the firm stability of lens that the clamping jaw 313 centre gripping was not only guaranteed, and the middle part of clamping jaw 313 sets up fluting 314, and the middle part of clamping jaw 313 and lens is contactless, can prevent that the clamping jaw 313 from causing the damage and influencing normal use to the middle part of lens.
On the basis of the above-described embodiment, further, referring to fig. 7 and 8, the glue dispensing mechanism 1 includes a glue needle assembly 101 and a glue cup 102. The glue needle assembly 101 is arranged above the glue cup 102, the glue cup 102 is opened upwards, and glue is contained inside the glue cup 102. The glue needle assembly 101 is inserted inside the glue cup 102 to obtain glue. The glue needle assembly 101 includes two glue needles arranged in parallel and spaced apart. The bottom ends of the two rubber needles are positioned on the same horizontal plane. The distance between the two glue needles is smaller than the cross-sectional width of the barrel 1021 of the glue cup 102.
The glue pin assembly 101 dips glue by being inserted into the glue inside the glue cup 102 so that the glue is attached to the bottom end of the glue pin assembly 101. The grabbing mechanism 31 can grab the lens and wait for the glue dispensing device to contact with the bottom end of the glue needle assembly 101, so as to realize the glue coating on the lens.
The glue needle assembly 101 may be a simple shaft-like or needle-like structure, so that the dispensing system has a simple structure and is convenient to manufacture. This system of gluing easy operation just sets up gluey needle subassembly 101 and obtains glue through dipping in, compares current packing element structure, can be convenient for control scribble the glue yield of establishing at every turn, is favorable to evenly scribbling and establishes.
Two glue needles can be inserted into the glue cup 102 at the same time to dip the glue. When the glue is coated on the device to be glued, the two glue needles with the intervals can simultaneously coat the glue on the two ends of the device to be glued, such as a lens, so that the glue dispensing efficiency is improved.
Further, the depth and time of each insertion of the glue needle into the glue cup 102 can be controlled to control the amount of glue dipped by the glue needle. The time of suspending the glue needle after dipping the glue is controlled to control the uniformity of the glue coated on the lens.
Further, the distance between two glue needles in the glue needle assembly 101 may be slightly smaller than the length of the device to be dispensed. Thus, the two glue needles can simultaneously contact with the two ends of the device to be glued for gluing. The distance between the two glue needles can also be slightly larger than the length of the device to be glued. Therefore, the device to be glued can move between the two glue needles, and the two ends of the device with the glue are in contact with glue at the bottoms of the glue needles to realize glue dispensing.
Because the lens is a more accurate device, it is typically smaller in size. When the distance between the two glue needles is slightly larger than the length of the lens, as long as the two ends of the lens can be contacted with the glue, the glue can be coated on the two ends of the lens, and the glue coating requirement of the lens can be met.
On the basis of the above embodiment, further, the glue dispensing mechanism 1 further includes: a glue cup base 103, a horizontally arranged first air cylinder 104 and a vertically arranged second air cylinder 105. The first air cylinder 104 is connected to the glue needle assembly 101 for pushing the glue needle assembly 101 to move horizontally. The glue cup 102 is arranged on a glue cup holder 103. The second cylinder 105 is connected with the rubber cup holder 103. The second cylinder 105 is used for pushing the rubber cup 102 to move up and down so that the rubber needle assembly 101 is inserted into the rubber cup 102.
A fixedly mounted frame 16 may be provided for securing the first cylinder 104 and the second cylinder 105. The moving direction of the first cylinder 104 is the horizontal direction. Both glue needles may be simultaneously connected to a connection plate via which they are connected to the first cylinder 104. The first cylinder 104 can drive the glue needle assembly 101 to move back and forth along the horizontal direction, so as to facilitate conveying the glue needle assembly 101 to a position where glue dispensing is convenient, and facilitate adjusting the position of the glue needle assembly 101 to enable the glue needle assembly to be located above the glue cup 102.
The moving direction of the second cylinder 105 is a vertical direction. The rubber needle assembly 101 is positioned above the rubber cup 102, and the second air cylinder 105 drives the rubber cup 102 to ascend, so that the rubber needle is inserted into the rubber cup 102 to dip the glue; the second cylinder 105 drives the glue cup 102 to descend, so that the glue needle leaves the glue cup 102, and glue can be conveniently coated on the device to be glued.
The cylinder can provide linear motion through the extension and contraction of the piston. The different setting directions of the air cylinder can provide linear motion in different directions.
The first cylinder 104 and the second cylinder 105 may be provided in other structures, for example, in a rail slider structure. Namely, a guide rail is arranged, the slide block is connected with the guide rail in a sliding way, and the slide block can be driven to move linearly along the guide rail through the driving of a motor. The structure of the screw nut can be set, and the like, and is not limited specifically.
Further, a first cylinder 104 may be provided in connection with the three-dimensional adjustable frame 18. The three-dimensional adjusting bracket 18 can be arranged to be connected with the frame 16, the first air cylinder 104 is connected with the three-dimensional adjusting bracket 18, and the glue needle assembly 101 is connected with the first air cylinder 104. The initial position of the glue needle assembly 101 can be adjusted, so that the glue needle assembly can better adapt to the position of a device to be dispensed.
Further, fine adjustment knobs may be provided on the first cylinder 104 and the second cylinder 105 for adjusting the stroke of the cylinders.
On the basis of the above embodiment, further referring to fig. 9, the glue cup holder 103 is provided with a slide slot 1031. The slide groove 1031 is provided in a horizontal direction perpendicular to the moving direction of the first cylinder 104. The bottom 1022 of the glue cup 102 is slidably connected to the slide slot 1031. The cup bottom 1022 of the glue cup 102 is inserted into the slide slot 1031. The bottom 1022 of the cup 102 is slidably connected to the slide 1031 such that the cup 102 can move along the slide 1031 to adjust the position of the cup 102.
The rubber cup 102 is slidably connected with the rubber cup base 103, and the sliding direction is perpendicular to the moving direction of the rubber needle assembly 101. The adjustment of accessible to gluey cup 102 or gluey needle subassembly 101 position for glue cup 102 is located gluey needle subassembly 101 under, is convenient for dip in smoothly and gets glue.
In addition to the above embodiments, the cross-sectional area of the bottom 1022 of the rubber cup 102 is larger than the cross-sectional area of the barrel 1021 of the rubber cup 102. The cup bottom 1022 of the rubber cup 102 is detachably connected with the rubber cup base 103 through a connecting piece. The connecting piece is used for connecting the rubber cup 102 with the rubber cup base 103 to fix the rubber cup 102 after the position of the rubber cup 102 is adjusted. The cross section of the bottom 1022 of the rubber cup 102 is larger than that of the cup barrel 1021, so that the rubber cup 102 can be fixed conveniently by arranging a connecting piece.
On the basis of the above embodiment, further, referring to fig. 10, the connecting member includes the pressing piece 106. The sheeting 106 is U-shaped. Two side walls of the pressing sheet 106 are respectively covered on the cup bottoms 1022 at two sides of the cup barrel 1021 of the rubber cup 102. The pressing sheet 106 is connected with the rubber cup base 103 through a bolt.
The open end of the U-shaped pressing piece 106 can be inserted into two sides of the barrel 1021 of the rubber cup 102, so that two side walls of the pressing piece 106 press against the bottom 1022 of the rubber cup 102. And the other end of the pressing sheet 106 can be fixedly connected with the rubber cup seat 103 through a bolt. The glue cup 102 is held in place by the pressure of the sheeting 106.
On the basis of the above embodiment, further, the connecting member includes a clamping mechanism. The clamping mechanism is used for clamping and fixing the cup bottom 1022 of the rubber cup 102 and the rubber cup base 103. The connecting piece can also be provided as a clamping mechanism, namely after the position of the rubber cup 102 is adjusted, the rubber cup 102 is clamped with the rubber cup base 103 to realize the fixation of the rubber cup 102.
The clamping mechanism may be a clamping member, such as a clamp, for clamping the bottom 1022 of the glue cup 102 to the glue cup holder 103. The clamping mechanism may also be a Z-shaped member. On both sides of the rubber cup 102, the cup bottom 1022 of the rubber cup 102 is connected with the rubber cup base 103 through a Z-shaped member. On either side of the glue cup 102, two Z-shaped pieces are provided, one above and one below the glue cup holder 103. The bottom 1022 of the rubber cup 102 is clamped and fixed by the fixed connection of the two Z-shaped members.
The rubber cup 102 can also be adjustably and fixedly connected with the rubber cup holder 103 through other structures, which are not limited specifically.
On the basis of the above embodiment, further, referring to fig. 11, the curing mechanism 2 includes: several UV lamp heads 201. The plurality of UV lamp heads 201 are mutually provided with included angles, and the light emitting ends are converged. The light beams 202 emitted by several UV lamp heads 201 intersect at a point. A second end of the UV lamp cap 201 remote from the light exit end is connected to the connection plate. The connection plate is used for fixing the UV lamp head 201.
The curing mechanism 2 that this embodiment provided is certain contained angle with a plurality of UV lamp holder 201 and assembles the setting for the multi-beam facula of a plurality of UV lamp holder 201 assembles, thereby can increase the intensity of UV light, will treat that the solidification device is placed in the facula and assembles the department, can improve and shine the effect, improves curing efficiency.
The UV lamp head 201 may be a lamp emitting UV ultraviolet light. Preferably, the UV lamp head 201 is a lamp in which light is emitted from one end. The UV lamp head 201 may be fixed in position and angled by a connection plate.
Further, the UV lamp head 201 may be fixedly connected with the rubber cup holder 103 through a connection plate. The chip can be arranged below the rubber cup base 103, so that light rays of the UV lamp head 201 can irradiate on the chip conveniently. The UV lamp head 201 may also be fixed by the frame 16 for the purpose of focusing the light beam 202 onto the chip.
In addition to the above embodiments, the connection plates to which the plurality of UV caps 201 are connected to form an integrated mounting plate. The mounting plate is of a bending structure. The side of the mounting plate facing away from the UV lamp head 201 is connected to a heat sink 203. The plurality of fins 203 are arranged at intervals and parallel to each other.
Namely, a plurality of UV lamp heads 201 are connected and fixed with one mounting plate at the same time. The mounting plate is of a bending structure. The UV lamp heads 201 may be arranged at an included angle with each other. A plurality of UV lamp holders 201 are integrated on one mounting plate, so that the curing mechanism 2 is designed into a whole, the structure is compact, and the installation and debugging are convenient. The radiating fins 203 are arranged to accelerate heat dissipation of the UV lamp head 201 in the working process, and long-term and efficient work of the UV lamp head 201 is guaranteed. The fins 203 may be arranged perpendicular to the connection plate.
Further, the mounting plate is L-shaped. The L-shaped mounting plate has two sides. The first side 204 of the mounting board is of a bent structure and is connected to the heat sink 203. The second side 205 of the mounting plate is fixedly connected to the glue cup holder 103 or the rack 16. The second side 205 of the mounting plate can be detachably and fixedly connected with the rubber cup holder 103 or the frame 16 through bolts.
Further, a fixing plate 207 is provided on the second side 205 of the mounting plate. There is a distance between the fixation plate 207 and the second side 205. The power supply line 206 of the UV lamp head 201 is fixed by the fixing plate 207 at one side or both sides of the fixing plate 207.
The fixing plate 207 may be disposed parallel to the second side 205. And the fixing plate 207 may be detachably and fixedly connected with the second side edge 205. The mounting board may be provided with through holes at the gaps between the fins 203. The power supply line 206 of the UV lamp head 201 passes through the through hole to the side of the mounting board where the heat sink 203 is provided.
The power line 206 may be arranged between the fixing plate 207 and the second side 205, on a side of the fixing plate 207 facing away from the second side 205, or on both sides of the fixing plate 207. The power cord 206 may be fixed by a fixing plate 207. For example, the power supply line 206 may be fixed to the fixing plate 207 by a clip or the like.
The second side 205 is not only convenient for installing and fixing the whole curing mechanism 2, but also convenient for fixing the power line 206 of the UV lamp head 201. The power lines 206 of the UV lamp heads 201 are fixed through the fixing plate 207, so that the power lines 206 of the UV lamp heads 201 can be orderly arranged, the power supply can be conveniently connected, the integration level of the whole curing mechanism 2 is increased, and the UV lamp heads are convenient to install and use.
Further, the fixing plate 207 may be connected to the second side 205 of the mounting plate by bolts, and spacers may be disposed between the fixing plate 207 and the second side 205 of the mounting plate and at both ends of the fixing plate 207, so that a distance exists between the fixing plate 207 and the second side 205 of the mounting plate. The mounting plate can also be fixedly connected with the rubber cup seat 103 or the frame 16 directly through the bolt. The mounting plate may also be connected to the rubber cup holder 103 or the rack 16 at other positions, and the fixing plate 207 and the mounting plate may also be connected in other manners to form a gap, which is not limited in particular.
On the basis of the above embodiment, further, the UV lamp head 201 is rotatably connected with the connecting plate. The connecting plate is provided with a mounting seat, and the UV lamp cap 201 is hinged or pin-jointed with the mounting seat. Set up UV lamp holder 201 rotatable on the mounting panel, the angle of every UV lamp holder 201 of adjustment of can being convenient for, the position of the facula of being convenient for adjust whole solidification mechanism 2 and assembling improves flexibility and the suitability that whole solidification mechanism 2 used.
The curing mechanism 2 is suitable for high-power laser FAC lens coupling packaging equipment, namely, in the laser lens coupling process, ultraviolet glue is arranged between the lens and the laser chip, and the curing mechanism 2 can be used for curing the ultraviolet glue between the lens and the laser chip.
On the basis of the above embodiment, further, referring to fig. 12, at least one lens placing groove 51 is provided on the tray 5. The lens placement groove 51 has a first through hole 52 formed in the middle of the bottom thereof. The bottom of the lens placement groove 51 is opened with a second through hole 53 at least one end of the lens.
The first light source is arranged below the tray 5 and faces the tray 5. The tray 5 is placed on a first sample stage 6. The first sample stage 6 is provided with a third through hole at a position corresponding to the first through hole 52 and the second through hole 53. The bottom of the first sample table 6 is provided with a first adjusting mechanism 7, and the first adjusting mechanism 7 comprises an X-axis moving platform and a Y-axis moving platform.
The number of the lens placement grooves 51 may be one or plural, and the present embodiment will be described by taking plural lens placement grooves as an example. The plurality of lens placement grooves 51 are arranged in a vertical and horizontal array. The first through hole 52 is in a strip shape and is located in the middle of the lens placement groove 51, so that two sides of the middle of the lens correspond to the position of the first through hole 52. That is, the two sides of the middle part of the lens can be seen from the bottom of the tray 5 through the first through hole 52.
The second through hole 53 is one in number, has a circular shape, and is provided at one end of the lens placement groove 51. The other end of the lens placement groove 51 is provided with a T-shaped groove 54. When the lens is placed, one end of the lens is positioned on the second through hole 53 and the other end of the lens is positioned on the T-shaped groove 54. I.e. from the bottom of the tray 5, one end of the lens is visible through the second through hole 53. The T-shaped slot 54 is not provided through the tray 5 for supporting the other end of the lens. The width of the T-shaped slot 54 may be adapted to the width of the lens to facilitate initial positioning of the lens during placement.
In addition to the above, the number of the second through holes 53 may be two, and symmetrically provided at both ends of the lens placement groove 51.
The first light source emits light from the bottom of the tray 5 toward the tray 5, and the first light source may be spaced from the tray 5 by a certain distance or may be directly disposed at the bottom of the tray 5. The first light source in this embodiment is provided below the first sample stage 6 and can be fixed by a base fixed to the support table 17. The light emitted by the first light source can pass through the third through hole of the sample stage and the first through hole 52 and the second through hole 53 on the tray 5 to irradiate the lens.
The first light source is below the tray 5, and can only pass through the tray 5 at the first through hole 52 and the second through hole 53, so that in the image of the tray 5 acquired by the first image detection mechanism 4, the first through hole 52 and the second through hole 53 are obviously different from the other parts of the lens placement groove 51 in color. The positions of the lenses at the first through-hole 52 and at the second through-hole 53 are easily identified. The first through hole 52 can identify two sides of the lens, which can be used to determine the angle between the lens and the predetermined reference line, which can be the center line of the lens placement groove 51. The end of the lens can be determined through the second through hole 53, and both ends of the lens can be determined according to the known length parameter of the lens, so that the position information of the lens can be determined.
The first adjustment mechanism 7 may be a related structure capable of providing linear movement along the X-axis as well as linear movement along the Y-axis. The structure can be a sliding table structure, a motor, a lead screw and a nut seat structure, and is not limited specifically, so that the purpose of linear movement can be achieved. The first adjusting mechanism 7 can drive the first sample table 6 to move, so that the material tray 5 can be placed conveniently and the material tray 5 can be moved to a proper initial position.
On the basis of the above embodiment, further, the positioning subsystem further includes: a second image detection means 8 and a third image detection means 9. The second image detection mechanism 8 is disposed above the chip for capturing images of the chip and the lens from above. The second image detection means 8 is provided with a second light source directed toward the chip. The third image detection mechanism 9 is arranged at one side of the chip and is used for collecting images of the chip and the lens from the side. The other side of the chip is provided with a third light source. The third light source is disposed toward the third image detection mechanism 9. The second image detection mechanism 8 and the third image detection mechanism 9 are used for positioning the attaching process of the lens and the chip.
After the lens is dispensed, the spatial displacement mechanism 32 may move the lens over the chip according to the initial position information of the chip. The second image detection mechanism 8 is matched with the second light source, and can collect images of the lens and the chip from the upper side of the chip. The horizontal spacing between the lens and the chip and the angle of offset of the lens relative to the chip from a top view angle can be analyzed from the image.
The third image detection mechanism 9 is matched with the third light source and can collect images of the chip and the lens at the side edge. From this image, the vertical spacing between the lens and the chip and the offset angle of the lens relative to the chip from the test angle can be analyzed.
The first image detection mechanism 4, the second image detection mechanism 8, and the third image detection mechanism 9 are electrically connected to the spatial displacement mechanism 32, respectively. The spatial displacement mechanism 32 moves according to the position information determined by the first image detection mechanism 4, the second image detection mechanism 8, and the third image detection mechanism 9, so as to smoothly grip the lens and attach the lens to the chip.
The first image detection mechanism 4, the second image detection mechanism 8, and the third image detection mechanism 9 each include an industrial camera. Such as a CCD camera or a CMOS camera. The collected optical signal may be converted into an electrical signal by the industrial camera and then transmitted to the spatial displacement mechanism 32 through the signal line. The industrial camera data interface may employ an ethernet interface, a USB interface, or other signal interface.
Further, the first image detection mechanism 4 and the second image detection mechanism 8 may be fixed by the frame 16, respectively. The frame 16 may be fixedly arranged on a support table 17. The third image detection mechanism 9 may be fixed by a support base fixed to the support base 17.
Further, the first image detection mechanism 4, the second image detection mechanism 8 and the third image detection mechanism 9 may also be connected to a three-dimensional adjusting frame, respectively. The three-dimensional adjusting frame is fixed on the frame 16 or the supporting seat, so that the initial position of the image detection mechanism can be conveniently adjusted, and the use flexibility and the applicability are improved. For example, the distance between the lens and the tray 5 is adjusted by the three-dimensional adjusting bracket before the gripping operation is performed, so that the lens can obtain better imaging quality. During the gripping operation, the distance does not need to be adjusted.
On the basis of the above embodiment, further, the chip is placed on the base 10. The base 10 is provided with step surfaces corresponding to the plurality of chips one to one along the length direction. The chip is vertically arranged at one end of the step surface. The base 10 is placed on the second sample stage 11. The bottom of the second sample table 11 is provided with a second adjusting mechanism 12; the second adjusting mechanism 12 includes a horizontal moving platform and a vertical moving platform along the length direction of the base 10.
The base 10 is used for fixing a chip. The upper surface of the base 10 is stepped, and a chip is vertically placed at one end of each stepped surface. When the gripping mechanism 31 grips the lens from the tray 5, the bottom surface of the lens faces downward. Because the chip sets up vertically, consequently need swing cylinder 33 to drive and snatch mechanism 31 and lens and rotate 90 for the bottom surface of lens sets up to vertical attitude, is convenient for laminate on the chip.
The second adjusting mechanism 12 is provided to adjust the initial positions of the base 10 and the chip to be at positions convenient for attaching the lens. After one chip is attached, the next chip can be moved to the attaching station through the second adjusting mechanism 12, so that the multiple chips can be attached continuously and automatically.
On the basis of the above embodiment, further, the positioning subsystem further includes: and a light spot detection mechanism. The light spot detection mechanism comprises a probe 13 and a probe head 14 which are oppositely arranged on two sides of the chip. The probes 13 are used to contact the chip to energize the chip to emit a beam of light. The probe 14 is used to detect the spot formed by the beam. The probe 14 is electrically connected to the spatial displacement mechanism 32. The spatial displacement mechanism 32 adjusts the position of the lens according to the state of the light spot.
In the lens bonding process, first, the spatial displacement mechanism 32 is moved based on the position information determined by the second image detection mechanism 8 and the third image detection mechanism 9, and the lens is gradually moved toward the chip. The spatial displacement mechanism 32 suspends the movement when the lens is close to the chip. The position of the lens is accurately positioned further by the spot detection mechanism. The distance may be a preset distance.
At this point, the lens is already relatively close to the chip. The light spot detection mechanism judges whether the lens reaches the most appropriate coupling position or not by detecting the light condensation effect of the lens on the chip. The lens is located between the chip and the probe 14. The probe 13 is in an energized state. When the probes 13 contact the chip, the chip emits a light beam. The chip is arranged towards the probe 14, and the light beam is received by the probe 14 after passing through the lens to form a light spot.
The preset light spot shape of the lens at the coupling position can be set, and the actual light spot is compared with the preset light spot to finely adjust the position of the lens continuously. Until the actual light spot is consistent with the preset light spot, and the shape and the size are the same, it indicates that the lens reaches the coupling position, and at this time, the lens is attached to the chip at the coupling position through the spatial displacement mechanism 32.
Furthermore, a moving mechanism such as a synchronous belt group 15 can be arranged between the probe 14 and the base 10, so that the distance between the probe 14 and the base 10 can be conveniently adjusted, and the flexibility and the applicability are improved. The probe 14 may also be connected to a three-dimensional adjustable mount to facilitate adjustment of the initial position.
On the basis of the above embodiments, further, a lens coupling method using the lens coupling system in any of the above embodiments includes: obtaining the position information of the target lens 19 on the material tray 5 through the first image detection mechanism 4; moving the grasping mechanism 31 to above the target lens 19, and then the grasping mechanism 31 grasps the target lens 19; moving the grabbing mechanism 31 to drive the target lens 19 to a preset dispensing position; moving the grabbing mechanism 31 to contact with the dispensing mechanism 1 according to a preset path for dispensing; obtaining the position of the target chip 21 on the base 10 through the second image detection mechanism 8 and the third image detection mechanism 9; moving the grabbing mechanism 31 to drive the target lens 19 to the pre-coupling position; adjusting the pose of the target lens 19 to a coupling position according to the light spot formed by the light beam emitted by the target chip 21 detected by the light spot detection mechanism; moving the grasping mechanism 31 to attach the target lens 19 to the target chip 21; after the curing mechanism 2 cures the glue on the target lens 19 for a preset time, the grabbing mechanism 31 loosens the target lens 19, and the attachment is completed.
After dispensing and before the position of the target chip 21 on the base 10 is obtained through the second image detection mechanism 8 and the third image detection mechanism 9, the swing cylinder 33 may drive the chuck and the target lens 19 to rotate 90 °, so that the bottom of the target lens 19 faces the chip.
On the basis of the above embodiment, further, a diagram in fig. 13 is an image of the lens and the lens placement groove captured by the first image detection means, and a diagram b in fig. 13 is an image of the lens and the lens placement groove obtained after the first image detection means has undergone calculation processing. The obtaining of the position of the target lens 19 on the tray 5 by the first image detection mechanism 4 specifically includes: transmitting light rays by using the first through hole 52, acquiring an image of the side edge of the target lens 19, and calculating an angle value between the side edge of the target lens 19 and a preset reference line to obtain an inclination angle alpha of the target lens 19; the second through hole 53 transmits light, an image of the end surface of the objective lens 19 is acquired, position information of the end surface of the objective lens 19 is obtained, and position information of the other end surface of the objective lens 19 is calculated from the length H of the objective lens 19.
Specifically, the preset reference line in the present embodiment is a right side line of the lens placement groove 51. Further, a placement image of the lens in the lens placement groove 51 can be obtained from the positional information of both ends of the lens and the lens inclination angle α. Depending on the size of the chuck, the center line of the slot 314 in the jaws 313 of the upper chuck 311 and the lower chuck 312 may be coincident with the center line of the lens or may be offset by a certain amount, and the final gripping position 20 of the chuck may be calculated. The upper and lower chucks 311 and 312 are collectively referred to as chucks.
Further, as shown in fig. 14, the step of adjusting the position of the collet to the gripping position 20 by the spatial displacement mechanism 32 includes the following sub-steps:
and moving the chuck from the initial position to the position above the lens, wherein the height difference between the chuck and the lens is a preset height. Specifically, it may be set to 1 to 3 mm.
Acquiring the position of a chuck by using a first image detection mechanism 4, and rotating the chuck according to the inclination angle alpha of the lens to enable a clamping surface of the chuck to be parallel to the side surface of the lens;
and calculating the distance between the clamping surface of the chuck and the side surface of the lens to obtain the translation distance L. Specifically, the component of the translation distance L along the Y-axis is L1And a component along the X-axis of L2Adjustment may be performed by the spatial displacement mechanism 32 and/or the first adjustment mechanism 7.
And moving the chuck to the gripping position 20 according to the translation distance L and the preset height.
Specifically, as shown in fig. 14, the adjustment process of the chuck is divided into four stages: in the initial state, the collet is in the first collet position 3131, in which the gripping surface of the collet is parallel to the right edge of the lens placement groove 51, so that the angle between the gripping surface of the collet and the lens is equal to the lens tilt angle α. Rotating the collet by the lens tilt angle alpha so that the collet is positioned in the clampThe second position 3132 of the head, the gripping surface of the collet is parallel to the side of the lens. Then, the L-axis is moved in the Y-axis direction by the spatial displacement mechanism 32 or the first adjustment mechanism 71Such that the collet is in a third collet position 3133, the centerline of the collet being coincident with the centerline of the lens. Then, the L is moved in the X-axis direction by the spatial displacement mechanism 32 or the first adjustment mechanism 72So that the chuck is located at the chuck fourth position 3134 and the gripping surface of the chuck is located above the gripping position 20. Next, the chuck is located at the gripping position 20 by moving down a preset height by the Z-axis slide table 322. Finally, the air cylinder is then opened, so that the upper chuck 311 and the lower chuck 312 are closed, and the gripping operation is performed.
Further, after acquiring the position of the lens by the first image detection mechanism 4, before the first image detection mechanism 4 transmits the position information of the lens to the spatial displacement mechanism 32, the method further includes the following steps: acquiring a preset value of lens position deviation; calculating a deviation value between the position of the lens and the position of the standard lens; comparing the deviation value with a preset value of the lens position deviation; if the deviation value is larger than the preset value of the lens position deviation, stopping the clamping operation, and sending prompt information to prompt a worker to replace the lens; if the deviation value is less than or equal to the preset lens position deviation value, the first image detection mechanism 4 is used to transmit the position information of the lens to the spatial displacement mechanism 32, and the subsequent operation is continued.
Can see through above embodiment, the embodiment of the utility model provides a lens coupled system and method replace the manual work through the chuck and get lens, have reduced the randomness of getting the process of clamp for the clamping-force is more stable. Meanwhile, the first image detection mechanism 4 replaces human eyes to measure and judge, the position information of the lens is transmitted to the spatial displacement mechanism 32, and the spatial displacement mechanism 32 adjusts the position of the chuck according to the measured position of the lens, so that the accuracy of the clamping process is improved, and the pollution to the working surface of the lens is avoided. The spatial displacement mechanism 32 and the first image detection mechanism 4 supplement each other, so that the automatic and continuous operation of the lens clamping process can be realized, the efficiency of the clamping process is improved, the labor and the time are saved, and the position reference is provided for the subsequent lens installation.
Adjusting the pose of the target lens 19 according to the light spot formed by the light beam emitted by the target chip 21 detected by the light spot detection mechanism specifically includes: if the position and/or size of the light spot is different from the preset light spot, the position of the target lens 19 is adjusted by using the grabbing mechanism 31; if the light spot is judged to be different from the preset light spot in shape, the grabbing mechanism 31 is utilized to adjust the inclination angle of the target lens 19; until the light spot detected by the light spot detection mechanism is the same as the preset light spot, the target lens 19 is attached to the target chip 21.
If the spot acquired by the probe 14 is different from the preset spot in size, position and shape, the tilt angle and position of the target lens 19 can be adjusted to make the actual spot identical to the preset spot.
The embodiment of the utility model provides an actual facula and the adjustment method who predetermines the facula, at actual facula different with predetermineeing the facula in size and position, need adjust the position of target lens 19, at actual facula different with predetermineeing the facula in shape, need adjust the angle of inclination of target lens 19, in the in-service use process, can adjust the position appearance of target lens 19 according to the actual conditions of actual facula, rather than blind adjustment to improve adjustment efficiency.
This is further explained below in conjunction with a specific coupling alignment procedure.
First, a plurality of chips are mounted on the base 10 in the corresponding chip mounting positions 22. The number and size of the step faces of the base 10 are designed according to specific needs.
Then, the chip to be coupled is moved to the observation areas of the second image detection mechanism 8 and the third image detection mechanism 9 by the second adjustment mechanism 12, and the chuck holding the lens is also moved to the corresponding observation area by the spatial displacement mechanism 32, so that the lens and the chip can be simultaneously photographed in one picture. Wherein, a plurality of lenses can be placed in the tray 5, and the clamping head moves to the tray 5 to clamp one lens before each coupling.
Then, using the second image detection means 8 and the second image detection meansThe three image detection mechanisms 9 simultaneously acquire the relative positions of the lens and the chip to be coupled, and obtain the distance and angle relationship between the lens and the chip through the image processing unit. As shown in fig. 15, the second image detection mechanism 8 obtains an included angle β between the lens and the chip, and a distance L between the lens and the chip3. As shown in fig. 16, the third image detection mechanism 9 obtains that the included angle between the lens and the chip is δ and the distance between the lens and the chip is L4. The second image detection mechanism 8 and the third image detection mechanism 9 transmit the above-mentioned relative position information to the spatial displacement mechanism 32, and the spatial displacement mechanism 32 calculates the position to be coupled from the relative position information (i.e., the distance and the angle).
Next, the position of the chuck is adjusted to the coupling position by the spatial displacement mechanism 32, and it is necessary to adjust the lens to be parallel to the chip in the Y direction. The angle of the chuck is adjusted by the spatial displacement mechanism 32 to change the lens from the first lens position 1901 to the second lens position 1902, and the lens is translated to make the distance between the lens and the chip in the X-axis direction a first predetermined distance, at which time the lens is in the third lens position 1903. The angle of the chuck is adjusted by the spatial displacement mechanism 32 to change the lens from the third lens position 1903 to the fourth lens position 1904, and the lens is translated to make the distance between the lens and the chip in the Z-axis direction a second predetermined distance, at which time the lens is at the position to be coupled.
Then, the probe 13 is used to energize the target chip 21, the target chip 21 emits a light beam, and the pose of the lens is adjusted until the probe 14 detects a light spot formed by the light beam. The position of the lens is adjusted to adjust the width, position and shape of the spot. Judging whether the light spot is qualified or not, and entering the next step if the light spot is qualified; and if the position of the lens is not qualified, skipping and readjusting the position of the lens.
When the light spot is qualified, the chuck clamps the target lens 19 and is jointed with the target chip 21. And after the curing mechanism 2 cures the lens and the chip for a certain time, the chuck loosens the lens to complete the bonding of one lens. Then the chuck moves to the upper part of the material tray 5 again, and the next lens is clamped and jointed with the chip.
Can see through above embodiment, the embodiment of the utility model provides a lens coupling system and method, through place a plurality of chips in order to form the laser instrument array on base 10, and simultaneously, utilize second guiding mechanism 12 to move the chip of waiting to couple to the observation region, utilize space displacement mechanism 32 to also move the chuck that the centre gripping has the lens to the observation region, the relative position of the chip of waiting to couple and lens is treated to the rethread positioning subsystem and is measured and judge, and transmit this relative position information for space displacement mechanism 32, space displacement mechanism 32 adjusts the position of chuck according to the relative position information that measures the gained again, and then adjust lens to the coupling region of the chip of waiting to couple, then release lens, the coupling between lens and the current chip of waiting to couple has been accomplished promptly. And then sequentially carrying out lens coupling on other chips to be coupled in the same mode until all the chips are in a coupling state. The lens coupling system is matched with the positioning subsystem through the space displacement mechanism 32, the second adjusting mechanism 12, and the automatic and continuous operation of lens coupling positioning of a plurality of chips is completed, the precision and the efficiency of the coupling process are improved, the manpower and the time are saved, and the reference is provided for the batch production of high-power semiconductor lasers.
Further, the lens coupling system further includes a control unit (not shown in the figure), the control unit may be disposed in a centralized control console, the first adjusting mechanism 7, the second adjusting mechanism 12, the spatial displacement mechanism 32, the first cylinder 104, the second cylinder 105, the pneumatic gripper cylinder 315 and the positioning subsystem are electrically connected to the control console, the control console adopts a centralized control mode, current position signals of the base 10, the tray 5, the glue needle assembly 101, the chuck, the chip and the lens are collected in a centralized manner, and then the actual position signals are compared with preset position signals for analysis, control parameters of each component are calculated and sent to a corresponding mechanism.
Further, the first image detection mechanism 4 can singly acquire the image of the material tray 5, judge the position relationship between the lens on the material tray 5 and the first image detection mechanism 4, and then obtain the position relationship between the chuck and the lens on the material tray 5 according to the initial position relationship. The first image detection mechanism 4 can also acquire images of the chuck and the lens on the material tray 5 in the same picture, so that the position relation between the chuck and the lens can be obtained on the images.
On the basis of the above embodiments, further, a lens coupling system and method in which the specific dispensing process is as follows: the initial position of the glue needle assembly 101 is adjusted through the three-dimensional adjusting frame 18, so that the glue needle assembly 101 can meet the position requirement for dispensing the lens. The position of the cup 102 is then adjusted by moving the cup 102 in the chute 1031 so that the cup 102 is directly under the needle.
The second cylinder 105 drives the glue cup 102 to ascend for a preset distance, so that the two glue needles of the glue needle assembly 101 are inserted into the glue preset depth inside the glue cup 102, and after the glue needles stay for a preset time, the second cylinder 105 drives the glue cup 102 to descend, so that the glue cup 102 leaves the glue needle assembly 101. The first cylinder 104 then drives the glue needle assembly 101 to move to a position convenient for gluing.
The glue can stay for a preset time to form a preset shape on the glue attached to the bottom of the glue needle. Then, the space displacement mechanism 32 drives the collet and the lens to move to a position corresponding to the position of the plastic pin assembly 101, i.e. a position closer to the collet and the lens, which can be a preset position determined according to the initial positions of the components. Then, the spatial displacement mechanism 32 drives the lens to move along a preset path to contact and dispense glue at the bottom of the glue needle assembly 101, and the lens can move along a rectangular track. When required, the lens can be rotated by the angular displacement platform, so that the glue is dispensed to different side faces conveniently.
The lens coupling system can automatically coat the lens with glue, and is simple in structure, convenient to operate, high in glue dispensing efficiency and good in coating uniformity. The lens coupling system and the method can automatically couple and attach the lens and the laser chip, and the positioning subsystem is arranged, so that the attaching efficiency and accuracy can be greatly improved compared with manual attaching, the labor intensity is reduced, and the labor cost is saved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A lens coupling system, comprising: the device comprises a grabbing mechanism, a spatial displacement mechanism, a glue dispensing mechanism, a curing mechanism and a positioning subsystem; the grabbing mechanism is used for grabbing the lenses in the material tray; the space displacement mechanism is connected with the grabbing mechanism and used for driving the lens to move so as to be in contact with the glue dispensing mechanism for dispensing glue and moving the dispensed lens to be attached to a chip;
the curing mechanism is arranged above the chip and used for curing glue between the lens and the chip; the positioning subsystem comprises a first image detection mechanism, and the first image detection mechanism is arranged above the material tray and used for obtaining position information of the lenses in the material tray.
2. The lens coupling system of claim 1, wherein the spatial displacement mechanism includes a Z-axis slide and at least one of an X-axis slide and a Y-axis slide; and at least one of an X-axis angular displacement stage, a Y-axis angular displacement stage, and a Z-axis angular displacement stage.
3. The lens coupling system according to claim 1, wherein an oscillating cylinder is provided between the gripping mechanism and the spatial displacement mechanism, the spatial displacement mechanism being connected to a housing of the oscillating cylinder, an output shaft of the oscillating cylinder being connected to the gripping mechanism.
4. The lens coupling system of claim 3, further comprising: a limiting block and a mounting seat; the limiting block is arranged between the swing cylinder and the grabbing mechanism, one side of the limiting block is connected with a shell of the swing cylinder, the grabbing mechanism is fixedly connected with the mounting seat, and the mounting seat is connected with an output shaft of the swing cylinder on the other side of the limiting block; the mounting seat with one side that the stopper meets is connected and is set up the locating pin, the opposite side of stopper is provided with the constant head tank, the locating pin inserts in the constant head tank.
5. The lens coupling system of any one of claims 1 to 4, wherein the gripping mechanism comprises an upper chuck, a lower chuck, and a driving mechanism; the clamping jaw is arranged downwards, the clamping jaw of the upper clamping jaw and the clamping jaw of the lower clamping jaw are arranged oppositely, and the driving mechanism is used for driving the clamping jaw of the upper clamping jaw and the clamping jaw of the lower clamping jaw to move oppositely or back to back.
6. The lens coupling system of claim 1, wherein the dispensing mechanism comprises a glue pin assembly and a glue cup; the glue needle assembly is arranged above the glue cup, the opening of the glue cup is upward, and the glue needle assembly is inserted into the glue cup to obtain glue; the glue needle assembly comprises two glue needles which are arranged in parallel, the bottom ends of the two glue needles are positioned on the same horizontal plane, and the distance between the two glue needles is smaller than the width of the cross section of the cup cylinder of the glue cup.
7. The lens coupling system of claim 6, wherein the dispensing mechanism further comprises: the air cylinder device comprises a rubber cup base, a first air cylinder arranged horizontally and a second air cylinder arranged vertically; the first air cylinder is connected with the rubber needle assembly and used for pushing the rubber needle assembly to move horizontally; the glue cup is arranged on the glue cup base, the second air cylinder is connected with the glue cup base, and the second air cylinder is used for pushing the glue cup to move up and down so that the glue needle assembly is inserted into the glue cup.
8. The lens coupling system of claim 7, wherein the glue cup base is provided with a sliding groove, the sliding groove is arranged along a horizontal direction perpendicular to a moving direction of the first cylinder, and a bottom of the glue cup is slidably connected with the sliding groove.
9. The lens coupling system of claim 1, wherein the curing mechanism comprises: a plurality of UV lamp heads; the plurality of UV lamp holders form included angles with each other, the light emitting ends are arranged in a converging manner, and light beams emitted by the plurality of UV lamp holders are intersected at one point; and the second end of the UV lamp holder, which is far away from the light-emitting end, is connected with a connecting plate, and the connecting plate is used for fixing the UV lamp holder.
10. The lens coupling system of claim 9, wherein the connecting plates connected with the plurality of UV lamp caps are integrally connected to form a mounting plate, the mounting plate is of a bent structure, a side of the mounting plate facing away from the UV lamp caps is connected with a plurality of heat dissipation fins, and the heat dissipation fins are arranged at intervals and are parallel to each other.
11. The lens coupling system according to claim 1, wherein the tray is provided with at least one lens placement groove, a first through hole is opened in the middle of the bottom of the lens placement groove, and a second through hole is opened in the bottom of the lens placement groove at least one end of the lens;
a first light source is arranged below the material tray and faces the material tray; the material tray is placed on a first sample platform, and third through holes are formed in the positions, corresponding to the first through holes and the second through holes, of the first sample platform; the bottom of first sample platform is provided with first guiding mechanism, first guiding mechanism includes X axle and Y axle moving platform.
12. The lens coupling system of claim 1, wherein the positioning subsystem further comprises: a second image detection means and a third image detection means; the second image detection mechanism is arranged above the chip and used for collecting images of the chip and the lens from the upper side, and a second light source facing the chip is arranged on the second image detection mechanism; the third image detection mechanism is arranged on one side of the chip and used for collecting images of the chip and the lens from the side surface, and a third light source is arranged on the other side of the chip; the second image detection mechanism and the third image detection mechanism are used for positioning the attaching process of the lens and the chip;
the first image detection mechanism, the second image detection mechanism and the third image detection mechanism are respectively electrically connected with the spatial displacement mechanism;
the first image detection mechanism, the second image detection mechanism and the third image detection mechanism respectively comprise an industrial camera.
13. The lens coupling system of claim 1, wherein the chip is placed on a mount; the base is provided with step surfaces which correspond to the chips one by one along the length direction; the chip is vertically arranged at one end of the step surface;
the base is placed on a second sample table, and a second adjusting mechanism is arranged at the bottom of the second sample table; the second adjusting mechanism comprises a horizontal moving platform and a vertical moving platform along the length direction of the base.
14. The lens coupling system of claim 1 or 12, wherein the positioning subsystem further comprises: the light spot detection mechanism comprises probes and a probe which are oppositely arranged on two sides of the chip, and the probes are used for contacting the chip so as to electrify the chip to emit light beams; the probe is used for detecting a light spot formed by the light beam; the probe is electrically connected with the spatial displacement mechanism, and the spatial displacement mechanism adjusts the pose of the lens according to the state of the light spot.
CN201920480151.XU 2019-04-10 2019-04-10 Lens coupling system Active CN209911606U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110045465A (en) * 2019-04-10 2019-07-23 中南大学 A kind of Lens Coupling system and method
CN114934941A (en) * 2022-04-28 2022-08-23 江西联坤智能科技有限公司 Automatic assembling equipment and method for light engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110045465A (en) * 2019-04-10 2019-07-23 中南大学 A kind of Lens Coupling system and method
CN110045465B (en) * 2019-04-10 2024-02-06 中南大学 Lens coupling system and method
CN114934941A (en) * 2022-04-28 2022-08-23 江西联坤智能科技有限公司 Automatic assembling equipment and method for light engine

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