CN111266732B - Four-piece type optical device coupling welding equipment based on power and light spot detection - Google Patents
Four-piece type optical device coupling welding equipment based on power and light spot detection Download PDFInfo
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- CN111266732B CN111266732B CN202010106682.XA CN202010106682A CN111266732B CN 111266732 B CN111266732 B CN 111266732B CN 202010106682 A CN202010106682 A CN 202010106682A CN 111266732 B CN111266732 B CN 111266732B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
- B23K26/0861—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane in at least in three axial directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/705—Beam measuring device
Abstract
The invention provides four-piece type optical device coupling welding equipment based on power and light spot detection, which comprises a light emitter clamp, a lens clamp, an upper clamp module and a plurality of groups of welding devices for laser welding, wherein the light emitter clamp and the lens clamp are both arranged on an integral motion platform, the integral motion platform is provided with a plurality of coupling degrees of freedom, the light emitter clamp and the lens clamp are respectively provided with a plurality of coupling degrees of freedom relative to the integral motion platform, the upper clamp module is provided with a receiver clamp for clamping a receiving device and a light beam analyzer, and the upper clamp module is provided with a plurality of coupling degrees of freedom and can switch the receiver clamp or the light beam analyzer to enable one of the receiver clamp or the light beam analyzer to be aligned with the light emitting device. The invention can realize the integral movement of the light-emitting device and the lens on the premise of not performing lap welding, provides a new coupling selection, reduces the motion error caused by the independent control of the light-emitting device clamp and the lens clamp, and obviously improves the coupling precision and the welding quality compared with the prior art.
Description
Technical Field
The invention relates to the technical field of automatic coupling and packaging of optical devices, in particular to four-piece optical device coupling welding equipment based on power and light spot detection.
Background
With the development of optical fiber communication and optical fiber sensing technologies, the preparation of optical transceivers becomes the key to the advancement of optical information technology. In optical communication products, the demand of optical transceivers such as TOSA-laser transmitter and BOSA-single fiber bi-directional (transceiver integrated) products is increasing, and the optical transceivers mainly perform the function of photoelectric conversion of signals. The four-piece optical device is mainly composed of a light-emitting component, a lens, a receiving component and an adjusting ring, and the packaging process mainly comprises the steps of coupling alignment and laser welding of the light-emitting component and the lens, then coupling alignment and laser welding of the receiving component-adjusting ring and the light-emitting component-lens integrally, and completing the whole packaging process. However, how to improve the performance and quality of the optical device and reduce the cost is a key issue of the package manufacturing in the current industry, the core technology of the package manufacturing is the coupling alignment and soldering of the components, and the manufacturing cost of the optical device is mainly focused on the core technology.
In the prior art, coupling alignment and welding are performed through coupling welding equipment of an optical device, so that the problems of unstable product quality, low yield and low production efficiency caused by the prior manual operation mode are basically solved. However, for the four-piece optical device, since multiple times of coupling alignment and soldering are required to complete power coupling and equalization, the device is required to have more complicated coupling freedom, and each element can be ensured to meet the coupling precision requirement. However, the existing optical device coupling and welding equipment is usually insufficient in coupling degree of freedom, the coupling degree of freedom of each element is relatively independent, and deviation is easily generated when more than three elements are coupled at the same time, so that coupling precision is reduced, optical power is remarkably reduced, and finally the packaging quality of an optical device, especially a four-piece high-speed optical device with strict requirement on coupling precision, is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides coupling welding equipment suitable for a high-speed four-piece optical device, which has more complicated coupling freedom degree, and the coupling freedom degree can be independently executed and can be mutually matched to be executed, so that the precision of simultaneous coupling of a plurality of elements is improved, and the packaging quality of the optical device is improved.
In order to achieve the above object, the present invention provides a four-piece optical device coupling welding apparatus based on power and light spot detection, comprising a light emitter clamp for clamping a light emitting device, a lens clamp for clamping a lens, an upper clamp module and a plurality of sets of welding devices for performing laser welding, the illuminator fixture and the lens fixture are both disposed on a global motion platform, the global motion platform having a plurality of degrees of coupling freedom, the light emitter fixture and the lens fixture each have multiple degrees of freedom of coupling relative to the global motion platform, the upper clamp module is arranged above the light emitter clamp, a receiver clamp for clamping a receiving device and a light beam analyzer are arranged on the upper clamp module, the upper clamp module has a plurality of coupling degrees of freedom, while the receiver fixture or the beam analyzer can be switched to align one of them with the light emitting device.
Furthermore, the overall motion platform comprises a supporting platform, a first Y-axis displacement platform, a first X-axis displacement platform and a first Z-axis rotation platform are sequentially arranged at the bottom end of the supporting platform downwards, so that the supporting platform has a translational degree of freedom along the X-axis, along the Y-axis and a rotational degree of freedom around the Z-axis, and the light emitter clamp and the lens clamp are both fixedly arranged on the supporting platform.
Further, the illuminator fixture comprises an illuminator clamping part for clamping the illuminating device, a second Y-axis-surrounding rotating platform, a second X-axis-surrounding rotating platform, a second Y-axis displacement platform and a second X-axis displacement platform which are sequentially arranged from the bottom end of the illuminator clamping part downwards, so that the illuminator clamping part has a rotation freedom degree around the Y axis and the X axis and a translation freedom degree along the Y axis and the X axis.
Further, the illuminator clamping part includes the base, sets up along vertical direction guide rail on the base, slide and set up slider on the guide rail, with slider fixed connection's connecting seat and setting are in the illuminator chuck that is used for the centre gripping illuminator of connecting seat first end, the second end of connecting seat is provided with an elastic construction, the other end setting of elastic construction is in on the base, make the second end of connecting seat with base elastic connection, one side of guide rail is provided with a grating chi, the grating chi with base fixed connection, the correspondence is provided with a response piece on the slider.
Furthermore, the illuminator chuck comprises a clamping opening formed at the first end of the connecting seat, the shape of the clamping opening corresponds to the appearance of the illuminating device, a first clamping assembly and a second clamping assembly are arranged at the clamping opening, the first clamping assembly and the second clamping assembly respectively clamp and limit the illuminating device in the X-axis direction and the Y-axis direction, an electrifying device is arranged below the clamping opening, and the electrifying device is used for electrifying the illuminating device.
Furthermore, the first clamping assembly comprises a clamping plate, the first end of the clamping plate is hinged to the connecting seat, a first clamping block is fixedly arranged in the middle of the clamping plate and corresponds to the first side wall of the light-emitting device, the second end of the clamping plate is sleeved on a first locking bolt, and the first locking bolt is in threaded connection with the connecting seat;
the second clamping assembly comprises a second locking bolt, a second clamping block is fixedly arranged at the end part of the second locking bolt, the second clamping block is arranged on the connecting seat in a sliding mode and corresponds to a second side wall of the light-emitting device, and the second locking bolt is in threaded connection with the connecting seat;
the power-on device comprises a power-on base fixedly mounted with the connecting seat, a magnetic power-on plate is arranged on the power-on base and adsorbed on the power-on base, a horizontal power-on guide pillar is arranged on the power-on plate, a power-on press block is arranged on the power-on guide pillar in a sliding mode, the inner side of the power-on press block corresponds to the flexible printed circuit board at the bottom end of the light-emitting device, a power-on knob is arranged at the end of the power-on guide pillar, the power-on knob can move inwards along the power-on guide pillar when being twisted and rotated, the power-on press block is pushed to slide inwards, and the flexible printed circuit board is pressed to the pin position of the power-on plate to.
Furthermore, the lens clamp comprises a lens chuck for clamping a lens, a third Z-axis displacement platform, a third Y-axis displacement platform and a third X-axis displacement platform are sequentially arranged at the bottom end of the lens chuck downwards, so that the lens chuck has translational freedom degrees along a Z axis, a Y axis and an X axis, the Z-axis displacement platform is further provided with a lens translation cylinder, and the lens chuck is slidably arranged on the third Z-axis displacement platform and driven by the lens translation cylinder.
Further, the upper clamp module comprises a mounting plate, a fourth Z-axis rotating platform is arranged on one side of the mounting plate, the fourth Z-axis rotating platform is arranged on the fourth Z-axis displacement platform in a sliding mode, the fourth Z-axis displacement platform is arranged on a support frame in a sliding mode along the horizontal direction, an upper clamp translation cylinder fixedly arranged on the support frame drives the fourth Z-axis rotating platform, and the receiver clamp and the beam analyzer are fixedly arranged on the mounting plate and distributed along the vertical direction.
Further, the receiver clamp comprises a receiver chuck for clamping the receiving device and a bearing structure for preventing the adjusting ring from falling, and an optical fiber connecting structure is further arranged in the receiver clamp and used for connecting optical fibers in the receiving device.
Furthermore, welding set includes laser welder and jets out the head, laser welder jets out the head and sets up on diaxon welder motion platform, diaxon welder motion platform sets up on manual fine setting platform, set up the CCD camera on the laser welder jets out the head.
The scheme of the invention has the following beneficial effects:
the coupling welding equipment disclosed by the invention has the advantages that the light-emitting device and the lens are coupled through the independent movement of the light-emitting device clamp and the lens clamp, and then the light-emitting device-lens-receiving device are coupled through the integral movement platform and the upper clamp module, so that the integral movement of the light-emitting device and the lens can be ensured on the premise of not performing lap welding, compared with the condition that the movement forms of the light-emitting device and the lens can only be independently adjusted, a new coupling selection is provided, the movement errors caused by the independent control of the light-emitting device clamp and the lens clamp are reduced, and the coupling precision and the welding quality are obviously improved compared with the prior art;
the upper clamp assembly is provided with the receiving assembly and the near-field beam analyzer, the laser focus condition can be detected through the beam analyzer, the horizontal positions of the light-emitting device and the lens are confirmed, the receiving assembly is directly coupled with the light-emitting device and the lens in a multi-channel space mode, and a power field model is established for primary power balance, so that the multi-channel coupling detection device has multiple coupling detection modes, and the coupling reliability and precision of the devices are improved; in addition, the CCD camera is arranged on the welding equipment, so that the position of a welding spot can be monitored, the position of the welding spot can be automatically judged and adjusted, the automatic welding process is completed, and the welding precision and quality are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a simplified overall structure of the present invention;
FIG. 3 is an enlarged view of FIG. 1A;
FIG. 4 is a diagram of the illuminator fixture, lens fixture and global motion platform configuration of the present invention;
FIG. 5 is a schematic view of a detail of the light emitter clip of the present invention;
FIG. 6 is another view of a detail of the light emitter clip construction of the present invention;
FIG. 7 is a schematic view showing a detailed structure of the position of the holding opening of the light emitter holder according to the present invention;
FIG. 8 is a schematic structural diagram of an upper clamp module of the present invention;
fig. 9 is a schematic structural diagram of a welding device of the present invention.
[ description of reference ]
01-a light emitting device; 02-a lens; 03-a receiving device; 04-adjusting ring; 1-a light emitter fixture; 11-a light emitter clamp; 111-a base; 112-a guide rail; 113-a slider; 114-a connecting seat; 115-a light emitter clip; 1151-a clamping port; 116-an elastic structure; 117-grating ruler; 12-second rotating the platform about the Y axis; 13-second rotating the platform about the X-axis; 14-a second Y-axis displacement stage; 15-a second X-axis displacement stage; 16-a first clamping assembly; 161-a clamping plate; 162-first grip tab; 163-first locking bolt; 17-a second clamping assembly; 171-a second locking bolt; 172-a second clamping block; 18-a power-on device; 181-upper electrical base; 182-a charging board; 183-flexible printed circuit board; 184-upper electric guide pillar; 185-upper voltage block; 186-power-on knob; 2-a lens holder; 21-a lens chuck; 22-a third Z-axis displacement stage; 23-a third Y-axis displacement stage; 24-a third X-axis displacement stage; 25-a lens translation cylinder; 3-mounting a clamp module; 31-a receiver fixture; 311-a receiver chuck; 312-a receiving structure; 32-a beam analyzer; 33-a mounting plate; 34-fourth rotating the platform about the Z-axis; 35-a fourth Z axis displacement stage; 36-a support frame; 37-an upper clamp translation cylinder; 4-a welding device; 41-laser welding gun ejection head; 42-two axis torch motion stage; 43-manual fine tuning of the platform; 44-a CCD camera; 5-a global motion platform; 51-a support table; 52-first Y-axis displacement stage; 53-a first X-axis displacement stage; 54-first to rotate the platform about the Z axis.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a four-piece optical device coupling welding apparatus based on power and light spot detection, which includes an emitter clamp 1 for clamping a light emitting device 01, a lens clamp 2 for clamping a lens 02, an upper clamp module 3, and a plurality of sets of welding devices 4 for performing laser welding. Wherein, the illuminator anchor clamps 1 and the lens anchor clamps 2 are all arranged on a whole motion platform 5, and the whole motion platform 5 has a plurality of coupling degrees of freedom. The illuminator gripper 1 and the lens gripper 2 each have a plurality of degrees of freedom of coupling with respect to the global motion stage 5. The upper jig module 3 is disposed above the light emitter jig 1, and the upper jig module 3 is provided with a receiver jig 31 and a beam analyzer 32 that clamp the receiving device 03. The upper clamp module 3 has multiple degrees of freedom of coupling and can switch either the receiver clamp 31 or the beam analyzer 32 to align one of them with the light emitting device 01.
The coupling welding process using the device comprises the following steps: the lens clamp 2 clamps the lens 02 and moves the lens 02 to the position right above the light emitter clamp 1, so that the lower surface of the lens 02 is attached to the upper surface of the light emitting device 01, and the lens 02 and the light emitting device 01 are flatly attached through the coupling freedom degrees of the lens clamp 2 and the light emitter clamp 1, so that the angle error of the flat surface is within an allowable range; after the leveling is qualified, the upper clamp module 3 drives the light beam analyzer 32 to align the lens 02 and the light emitting device 01 to assist in detecting the laser focus condition, preliminarily confirms the relative horizontal positions of the light emitting device 01 and the lens 02, in the process, the lens clamp 2 drives the lens 02 to perform micro displacement on the horizontal plane, adjusts the horizontal position of the lens 02 relative to the light emitting device 01 until the light beam analyzer 32 detects that the laser focus condition is qualified, and completes the first coupling alignment of the lens 02 and the light emitting device 01;
then, the overall moving platform 5 drives the light emitter clamp 1 and the lens clamp 2 to move horizontally in an overall manner, meanwhile, the upper clamp module 3 is switched to the receiver clamp 31 to align the lens 02 and the light emitting device 01, and drives the clamped receiving device 03 to move vertically to be close to the light emitting device 01, laser of the light emitting device 01 is collected to carry out optical power coupling, the relative positions of the lens 02 and the light emitting device 01 are finally confirmed (if the optical power cannot be coupled, the first coupling alignment of the lens 02 and the light emitting device 01 is carried out again), and the welding device 4 is used for completing lap welding of the lens 02 and the light emitting device 01 to form a light emitting device-lens whole;
then the lens clamp 2 leaves the lens 02, the illuminator clamp 1 drives the light emitting device-lens to displace in the horizontal plane, the receiver clamp drives the receiving device 03 to displace vertically, multi-channel spatial coupling of the light emitting device-lens and the receiving device 03 is started, a power field model is established, primary power equalization is carried out to confirm the vertical positions of the receiving device 03 and the adjusting ring 04 on the receiver clamp 31, after confirmation, the focal length is determined by the welding device 4 and the penetration welding of the adjusting ring 04 and the receiving device 03 is completed, and the whole of the receiving device-adjusting ring is formed;
then, flatting the light emitting device-lens and the receiving device-adjusting ring, driving the receiving device-adjusting ring to move vertically downwards by the receiver clamp 31, enabling the lower surface of the receiving device 03 to be attached to the upper surface of the lens 02, and gradually flatting the light emitting device-lens and the receiving device-adjusting ring under the coupling action of the light emitter clamp 1 to enable the angle error of the flat surface to be within an allowable range; and finally, the light-emitting device clamp 1 drives the light-emitting device-lens to move in the horizontal plane, power coupling and balancing of the light-emitting device-lens and the receiving device-adjusting ring in the plane are completed, the relative horizontal positions of the light-emitting device-lens and the receiving device-adjusting ring are confirmed, the welding device 4 performs lap welding of the light-emitting device-lens and the receiving device-adjusting ring, the lap welding of the lens 02 and the receiving device 03 is performed, and the coupling welding process of the four-piece optical device is completed.
Therefore, the coupling welding equipment of the invention couples the light emitting device 01 and the lens 02 through the independent movement of the light emitting device clamp 1 and the lens clamp 2, and couples the light emitting device-lens and the receiving device 03 through the integral moving platform 5 and the upper clamp module 3, so that the integral movement of the light emitting device 01 and the lens 02 can be ensured on the premise of not performing lap welding, compared with the condition that the movement forms of the light emitting device 01 and the lens 02 can only be adjusted independently, the equipment provides a new coupling selection, reduces the movement errors caused by the independent control of the light emitting device clamp 1 and the lens clamp 2, realizes the packaging process of combining multiple coupling and multiple welding on one set of equipment, and obviously improves the coupling precision and the welding quality compared with the prior art.
As further shown in fig. 4, the overall movement platform 5 includes a supporting platform 51, a first Y-axis displacement platform 52, a first X-axis displacement platform 53 and a first Z-axis rotation platform 54 are sequentially disposed at the bottom end of the supporting platform 51, so that the supporting platform 51 has a translational degree of freedom along the X-axis and the Y-axis and a rotational degree of freedom around the Z-axis, and the light emitter fixture 1 and the lens fixture 2 are both fixedly disposed on the supporting platform 51. After the first coupling alignment of the lens 02 and the light emitting device 01 is completed, the first Y-axis displacement platform 52, the first X-axis displacement platform 53 and the first Z-axis rotation platform 54 cooperate to move or rotate the support platform 51 on the horizontal plane, and the horizontal positions of the lens 02 and the light emitting device 01 are uniformly adjusted so that the support platform is aligned with the receiving device 03, and the optical power of the lens 02 and the light emitting device 01 is detected by the receiving device 03 to couple the optical power of the lens 02 and the light emitting device 01.
As further shown in fig. 5, 6 and 7, the light emitter clamp 1 includes a light emitter clamping portion 11 that clamps the light emitting device 01, a second Y-axis rotation platform 12, a second X-axis rotation platform 13, a second Y-axis displacement platform 14 and a second X-axis displacement platform 15, which are provided in this order from the bottom end of the light emitter clamping portion 11 downward, so that the light emitter clamping portion 11 has a rotational degree of freedom about the Y-axis about the X-axis and a translational degree of freedom along the Y-axis and along the X-axis. The illuminator clamping part 11 adjusts the inclination angle of the upper surface of the device clamped by the illuminator clamping part and the lower surface of another device through the matching action of the second rotating platform 12 around the Y axis and the second rotating platform 13 around the X axis, and the flat pasting of the two devices is completed. And after the lens 02 and the light-emitting device 01 are welded into a whole, the second Y-axis displacement platform 14 and the second X-axis displacement platform 15 drive the light-emitting device clamping part 11 to horizontally displace, so that the light-emitting device-lens is vertically aligned with the receiving device 03, and multi-channel space coupling of light power is carried out. Wherein the rotation centers of the second rotary platform 12 around the Y axis and the second rotary platform 13 around the X axis just overlap the upper surface of the light emitting device 01, thereby reducing linear displacement compensation in angular displacement adjustment.
Further, the light emitter clamping portion 11 includes a base 111, a guide rail 112 disposed on the base 111 in a vertical direction, a slider 113 slidably disposed on the guide rail 112, a connection base 114 fixedly connected to the slider 113, and a light emitter clamp 115 disposed at a first end of the connection base 114 for clamping the light emitting device 01. Meanwhile, the second end of the connecting seat 114 is provided with an elastic structure 116, and the elastic structure 116 is in a compressed state and is located between the second end of the connecting seat 114 and the base 111 to form a state that the second end of the connecting seat 114 is elastically connected with the base 111. One side of the guide rail 112 is provided with a grating ruler 117 fixedly connected with the base 111, and the sliding block 113 is correspondingly provided with a sensing part, so that the sliding distance of the sliding block 113 along the guide rail 112 can be detected with high precision through the grating ruler 117.
When the attaching precision of the upper surface of the light emitting device 01 (or the lens 02) and the lower surface of the lens 02 (or the receiving device 03) is higher, the relative displacement variation range of the connection seat 114 should be smaller under the swing of the same amplitude of the base 111. Therefore, the process of leveling is that the base 111 continuously changes its swing (direction and amplitude) under the driving of the second rotating platform 12 around the Y axis and the second rotating platform 13 around the X axis, so that the clamped device continuously performs pre-leveling, and then the displacement variation range of the slider 113 and the connecting seat 114 on the guide rail 112 is detected by the grating ruler 117, when the range is minimum (or less than a preset value), the leveling is qualified, and the precision reaches a preset standard.
Further, the light emitter clip 115 includes a clip port 1151 formed at the first end of the connection holder, which has a shape corresponding to the outer shape of the light emitting device 01. In this embodiment, the light emitting device 01 is a box type device, and thus the clamping opening 1151 is provided as a square groove formed at the first end of the connection holder 114. A first clamping assembly 16 and a second clamping assembly 17 are arranged at the clamping opening 1151, the first clamping assembly 16 is used for clamping and limiting the light-emitting device 01 in the X-axis direction, the second clamping assembly 17 is used for clamping and limiting the light-emitting device 01 in the Y-axis direction, and static friction is generated by extrusion contact to limit the displacement of the light-emitting device 01 in the Z-axis direction. In addition, a power-on device 18 is disposed below the clamping opening 1151, and is used for performing power-on operation on the light-emitting device 01, so that the light-emitting device 01 emits laser light.
Further, the first clamping assembly 16 includes a clamping plate 161 having a first end hinged to the connecting base 114, a first clamping block 162 is fixedly disposed at a middle portion of the clamping plate 161, and the first clamping block 162 corresponds to a side wall of the light emitting device 01. Meanwhile, the second end of the clamping plate 161 is sleeved on the first locking bolt 163, and the first locking bolt 163 is in threaded connection with the connecting seat 114. When the light emitting device 01 is assembled, the first locking bolt 163 is tightened, and the bolt head gradually presses the second end of the clamping plate 161, thereby forming a lever structure, so that the first clamping block 162 presses the light emitting device 01 against the connecting socket 114 from the X-axis direction.
The second clamping assembly 17 includes a second locking bolt 171, and a second clamping block 172 is fixedly disposed at an end of the second locking bolt 171. The second clamping block 172 is slidably disposed in a sliding slot formed on the connecting base 114, and the sliding slot is communicated with the clamping opening 1151. Therefore, after the light emitting device 01 is assembled, the second locking bolt 171 is tightened to slide the second clamping block 172 along the sliding groove and move to the position of the clamping opening 1151, and the second clamping block contacts with the other side wall of the light emitting device 01, so that the light emitting device 01 is pressed on the connecting seat 114 from the Y-axis direction.
The power-on device 18 includes a power-on base 181 fixedly mounted with the connecting seat 114, a magnetic power-on plate 182 is disposed on the power-on base 181, and the power-on plate 182 is attached to the power-on base 181 made of ferromagnetic material. The upper electric board 182 is provided with pins corresponding to the power-on position of the flexible printed circuit board 183 at the bottom of the light emitting device 01, and the position of the magnetic upper electric board 182 on the upper electric base 181 can be adjusted during installation, so that the pins are opposite to the power-on position of the flexible printed circuit board 183. Meanwhile, a horizontal upper electric guide post 184 is arranged on the upper electric plate 182, an upper pressing block 185 is arranged on the upper electric guide post 184 in a sliding manner, after the upper electric plate 182 is installed in place, the inner side of the upper pressing block 185 is opposite to the soft row circuit board 183 and the pins, and the upper pressing block 185 is moved inwards along the upper electric guide post 184 by screwing an upper electric knob 186 at the end part of the upper electric guide post 184, so that the upper pressing block 185 is pushed to slide inwards along the upper electric guide post 184, the soft row circuit board 183 is pressed to the pin position of the upper electric plate 182, and is electrically contacted with the upper electric plate 182, and the power-on operation of the.
Further, the lens clamp 2 comprises a lens chuck 21 for clamping the lens 02, and a third Z-axis displacement platform 22, a third Y-axis displacement platform 23 and a third X-axis displacement platform 24 are sequentially arranged at the bottom end of the lens chuck 21 downwards, so that the lens chuck 21 has the translational freedom along the Z-axis, the Y-axis and the X-axis, and the flat position of the lens 02 and the light emitting device 01 is adjusted. Meanwhile, the third Z-axis displacement platform 22 is further provided with a lens translation cylinder 25, the lens chuck 21 is slidably arranged on the third Z-axis displacement platform 22 and is driven by the lens translation cylinder 25 to translate along the third Z-axis displacement platform 22, and the lens 02 is loaded to the light emitting device 01.
As further shown in fig. 8, the upper clamp module 3 includes a mounting plate 33, a fourth Z-axis rotating platform 34 is disposed on one side of the mounting plate 33, the fourth Z-axis rotating platform 34 is slidably disposed on a fourth Z-axis displacement platform 35, and the fourth Z-axis displacement platform 35 is slidably disposed on a support frame 36 along the horizontal direction, and is driven by an upper clamp translation cylinder 37 fixedly disposed on the support frame 36. Wherein, receiver anchor clamps 31 and beam analyzer 32 all fix the setting on mounting panel 33, arrange side by side, alternate certain distance, distribute and open downwards along vertical direction. The fourth rotating platform 34 around the Z axis can adjust the horizontal position of the receiver clamp 31 or the beam analyzer 32 by rotating to make it face the light emitting device 01 and the lens 02, and the fourth Z axis displacement platform 35 can drive the receiver clamp 31 to vertically displace to make the lower surface of the receiver device 03 fit with the upper surface of the lens 02 to be flattened. The fourth Z-axis displacement platform 35 is driven by the upper clamp translation cylinder 37 to displace along the support frame 36, so as to adjust the horizontal position and switch the position of the receiver clamp 31 or the beam analyzer 32 aligned with the light emitting device 01.
The receiver clamp 31 includes a receiver chuck 311 for clamping the receiving device 01 and a receiving structure 312 for preventing the adjusting ring 04 from falling off, because the top end of the receiving device 01 is clamped and fixed by the receiver chuck 311 before the adjusting ring 04 is penetrated and welded, and the adjusting ring 04 is freely sleeved on the outer side of the bottom end of the receiving device 03 at this time, the receiving structure 312 is arranged to temporarily limit the adjusting ring 04 at the bottom end of the receiving device 03 to prevent the adjusting ring 04 from falling off before welding. In addition, an optical fiber connection structure is further disposed in the receiver clamp 31 for connecting a receiving optical fiber in the receiving device 03 so as to collect an optical signal for analysis.
As further shown in fig. 9, each welding device 4 includes a laser welding gun emitting head 41, which is disposed on the two-axis welding gun moving platform 42, and has two-directional freedom of movement, and the alignment position of the laser welding gun emitting head 41 is adjusted, so that the welding laser can be accurately irradiated to the welding point. Meanwhile, the two-axis welding gun moving platform 42 is disposed on the manual fine adjustment platform 43, so that the alignment position of the laser welding gun ejection head 41 can be further corrected by the manual fine adjustment platform 43. The back of the laser welding gun ejection head 41 is provided with a CCD camera 44 which can monitor the position of the welding spot and automatically determine and adjust the position of the welding spot.
In the embodiment, the core coupling unit motion platforms are high-precision submicron motion platforms, all of the motion platforms are subjected to motion calibration through a Reynleast XL-80 laser interferometer, the motion resolution can reach 0.05um/0.0025 at most, and the coupling precision requirement of a high-speed optical device is met.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A four-piece optical device coupling welding device based on power and light spot detection is characterized by comprising a light emitter clamp for clamping a light emitting device, a lens clamp for clamping a lens, an upper clamp module and a plurality of groups of welding devices for laser welding, the illuminator fixture and the lens fixture are both disposed on a global motion platform, the global motion platform having a plurality of degrees of coupling freedom, the light emitter fixture and the lens fixture each have multiple degrees of freedom of coupling relative to the global motion platform, the upper clamp module is arranged above the light emitter clamp, a receiver clamp for clamping a receiving device and a light beam analyzer are arranged on the upper clamp module, the upper clamp module has a plurality of coupling degrees of freedom, simultaneously switching the receiver fixture or the beam analyzer to align one of the receiver fixture or the beam analyzer with the light emitting device;
the illuminator clamp comprises an illuminator clamping part for clamping a light-emitting device, a second Y-axis-rotating platform, a second X-axis-rotating platform, a second Y-axis-displacing platform and a second X-axis-displacing platform which are sequentially arranged from the bottom end of the illuminator clamping part downwards, so that the illuminator clamping part has the freedom of rotation around the Y axis and the X axis and the freedom of translation along the Y axis and the X axis;
the illuminator clamping part comprises a base, a guide rail arranged on the base along the vertical direction, a sliding block arranged on the guide rail in a sliding manner, a connecting seat fixedly connected with the sliding block and an illuminator clamping head arranged at the first end of the connecting seat and used for clamping an illuminator, wherein the second end of the connecting seat is provided with an elastic structure, the other end of the elastic structure is arranged on the base, so that the second end of the connecting seat is elastically connected with the base, one side of the guide rail is provided with a grating ruler, the grating ruler is fixedly connected with the base, and the sliding block is correspondingly provided with an induction part;
the illuminator chuck comprises a clamping opening formed at the first end of the connecting seat, and a power-on device is arranged below the clamping opening and used for performing power-on operation on the illuminator;
the power-on device comprises a power-on base fixedly mounted with the connecting seat, a magnetic power-on plate is arranged on the power-on base and adsorbed on the power-on base, a horizontal power-on guide pillar is arranged on the power-on plate, a power-on press block is arranged on the power-on guide pillar in a sliding mode, the inner side of the power-on press block corresponds to the flexible printed circuit board at the bottom end of the light-emitting device, a power-on knob is arranged at the end of the power-on guide pillar, the power-on knob can move inwards along the power-on guide pillar when being twisted and rotated, the power-on press block is pushed to slide inwards, and the flexible printed circuit board is pressed to the pin position of the power-on plate to.
2. The four-piece power and spot detection based optical device coupling welding apparatus of claim 1, wherein the global motion stage comprises a support stage, and a first Y-axis displacement stage, a first X-axis displacement stage and a first Z-axis rotation stage are disposed at a bottom end of the support stage in a downward order, such that the support stage has a translational degree of freedom along an X-axis, along a Y-axis and a rotational degree of freedom around a Z-axis, and the illuminator fixture and the lens fixture are both fixedly disposed on the support stage.
3. The four-piece optical device coupling welding equipment based on power and light spot detection according to claim 1, wherein the shape of the clamping opening corresponds to the shape of the light emitting device, a first clamping assembly and a second clamping assembly are arranged at the clamping opening, and the first clamping assembly and the second clamping assembly respectively perform clamping limiting on the light emitting device in an X-axis direction and clamping limiting in a Y-axis direction.
4. The four-piece optical device coupling welding equipment based on power and light spot detection according to claim 3, wherein the first clamping assembly comprises a clamping plate with a first end hinged to the connecting base, a first clamping block is fixedly arranged in the middle of the clamping plate and corresponds to a first side wall of the light emitting device, a second end of the clamping plate is sleeved on a first locking bolt, and the first locking bolt is in threaded connection with the connecting base;
the second clamping assembly comprises a second locking bolt, a second clamping block is fixedly arranged at the end part of the second locking bolt, the second clamping block is arranged on the connecting seat in a sliding mode and corresponds to a second side wall of the light-emitting device, and the second locking bolt is in threaded connection with the connecting seat.
5. The four-piece optical device coupling welding equipment based on power and light spot detection as claimed in claim 2, wherein the lens clamp comprises a lens chuck for clamping a lens, a third Z-axis displacement platform, a third Y-axis displacement platform and a third X-axis displacement platform are sequentially arranged at the bottom end of the lens chuck downwards, so that the lens chuck has translational freedom along the Z-axis, the Y-axis and the X-axis, and the Z-axis displacement platform is further provided with a lens translation cylinder, and the lens chuck is slidably arranged on the third Z-axis displacement platform and driven by the lens translation cylinder.
6. The four-piece optical device coupling welding equipment based on power and spot detection as claimed in claim 1, wherein the upper clamp module comprises a mounting plate, a fourth rotating platform around the Z axis is disposed on one side of the mounting plate, the fourth rotating platform around the Z axis is slidably disposed on a fourth Z axis displacement platform, the fourth Z axis displacement platform is slidably disposed on a support frame along the horizontal direction, and is driven by an upper clamp translation cylinder fixedly disposed on the support frame, and the receiver clamp and the beam analyzer are both fixedly disposed on the mounting plate and distributed along the vertical direction.
7. The four-piece optical device coupling welding equipment based on power and light spot detection as claimed in claim 6, wherein the receiver fixture comprises a receiver chuck for clamping the receiving device and a receiving structure for preventing the adjusting ring from falling off, and an optical fiber connecting structure is further arranged in the receiver fixture for connecting the optical fiber in the receiving device.
8. The four-piece optical device coupling welding equipment based on power and spot detection as claimed in claim 1, wherein the welding device comprises a laser welding gun emitting head, the laser welding gun emitting head is arranged on a two-axis welding gun moving platform, the two-axis welding gun moving platform is arranged on a manual fine adjustment platform, and a CCD camera is arranged on the laser welding gun emitting head.
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| CN111679381A (en) * | 2020-06-30 | 2020-09-18 | 苏州猎奇智能设备有限公司 | Optical fiber rotary coupling mechanism and coupling method thereof |
| CN112147744B (en) * | 2020-09-30 | 2022-04-15 | 广东瑞谷光网通信股份有限公司 | Novel adjusting ring and assembling method of light emitting assembly |
| CN112433307B (en) * | 2020-12-03 | 2022-02-22 | 四川光恒通信技术有限公司 | Novel four-piece optical fiber coupling alignment table and use method thereof |
| CN112415664A (en) * | 2020-12-03 | 2021-02-26 | 四川光恒通信技术有限公司 | Novel four-piece coupling table of optical path relay type device and use method thereof |
| CN112894136B (en) * | 2021-03-01 | 2023-03-24 | 湖南中南鸿思自动化科技有限公司 | Coupling welding equipment and method for coaxial collimator |
| CN113589452A (en) * | 2021-07-27 | 2021-11-02 | 福建中科光芯光电科技有限公司 | Manual optical patch coupling device of 200G/400G optical device and working method thereof |
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