CN117283171B - BOSA structure welding positioning monitoring method, system and storage medium - Google Patents
BOSA structure welding positioning monitoring method, system and storage medium Download PDFInfo
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- CN117283171B CN117283171B CN202311444815.4A CN202311444815A CN117283171B CN 117283171 B CN117283171 B CN 117283171B CN 202311444815 A CN202311444815 A CN 202311444815A CN 117283171 B CN117283171 B CN 117283171B
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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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
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Abstract
The invention discloses a BOSA structure welding positioning monitoring method, a system and a storage medium. In the embodiment of the invention, the relative relation between the LD end and the tee joint assembly is acquired, the automatic data acquisition is carried out on different LD ends, then the comparison is carried out according to the automatically acquired data result, the relative position of the LD end is automatically adjusted, and the manual excessive participation in the positioning monitoring work on the LD end is not needed. Meanwhile, whether the structure welding packaging work can be judged according to the data result of the LD end position after final adjustment. The manual participation degree is effectively reduced, and the machining precision is integrally improved. The defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art is high in labor degree is effectively overcome.
Description
Technical Field
The invention relates to the technical field of light emitting and receiving components, in particular to a BOSA structure welding positioning monitoring method, a BOSA structure welding positioning monitoring system and a storage medium.
Background
BOSA is an optical transmit-receive assembly structure that is widely used in the fields of high-speed communications, data centers, telecommunication networks, computer networks, wide area networks, and the like. They provide reliable and efficient fiber optic communication solutions supporting high speed data transmission and long distance communications. An optical transmitting-receiving assembly structure is a device integrating transmitting and receiving functions for converting an electrical signal into an optical signal and converting the optical signal back into an electrical signal. It plays a key role in optical fiber communication systems, enabling optical fibers to transmit and receive data. The light emitting and receiving components have different types and specifications to meet different application requirements.
The light emitting and receiving structure is generally composed of an LD assembly, a PT assembly, a ferrule assembly, and a three-way structure. When the light emitting and receiving assembly is welded and packaged, the LD assembly and the core inserting assembly are required to be subjected to optical coupling finding treatment, the final position of the LD assembly is determined, and the LD assembly, the PT assembly, the core inserting assembly and the tee joint structure can be integrally welded after the best performance between the LD assembly and the core inserting assembly is ensured. However, the welding packaging position of the light emitting and receiving structure at present completely depends on manual positioning welding, so that the labor intensity is high and the overall efficiency is low.
Disclosure of Invention
The invention aims to solve the defect that the method for welding the packaging position of a light emitting and receiving structure in the prior art is high in labor degree, and provides a BOSA structure welding positioning monitoring method, a BOSA structure welding positioning monitoring system and a storage medium.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the first aspect of the invention provides a BOSA structure welding positioning monitoring method, which comprises the following steps:
the method comprises the steps of obtaining the overall layout of a target structure, determining the position of a core inserting end on a tee component, and obtaining the initial position of an LD end on the tee component;
determining the power-on laser focus position of the LD end according to the initial position of the LD end on the tee joint assembly;
setting an acquisition point at the core-inserting end, and combining the power-on laser focus position of the LD end, and acquiring the optical power value of the core-inserting end in real time through the acquisition point;
the LD end is powered on, the position of the LD end is subjected to three-dimensional coordinate movement, and meanwhile, light is found out from the LD ends at different positions through the acquisition points, so that the light power values of the coupling of the ferrule end and the LD ends at different positions are obtained;
Determining the final position of the LD end according to the optical power values of the ferrule end and the LD ends at different positions;
And welding the whole target structure according to the final position of the LD end.
In a possible embodiment, the method for obtaining the optical power value of the coupling of the ferrule end and the LD end at different positions includes:
according to the initial position of the LD end, the laser is powered on and emitted at the LD end, and the laser focus powered on the LD end is obtained by combining the irradiation structure at the LD end;
according to the construction information of the core inserting end, determining a receiving surface of the core inserting end, inserting an optical fiber at an acquisition point of the core inserting end, and accessing optical power acquisition equipment;
setting a light finding path of the LD end and the core inserting end according to the power-on laser focus on the LD end and the receiving surface of the core inserting end at the initial position of the LD end;
And acquiring the optical power values of the coupling of the core inserting end and the LD end at different positions according to the optical path of the LD end and the core inserting end and by combining optical power acquisition equipment.
In a possible embodiment, the method for setting the light finding paths of the LD end and the ferrule end includes:
selecting a point on a receiving surface of the ferrule end as a datum point at will, and constructing a plane coordinate system on the ferrule end receiving surface by combining the datum point;
setting search parameter information on a plane coordinate system of a core-insert receiving surface according to an electrified laser focus on an LD end;
Obtaining a light finding searching path according to the searching parameter information and the plane coordinate system of the core inserting end receiving surface;
And moving the LD end according to the light finding searching path, and acquiring the light power values of different positions of the LD end in the light finding searching path in real time by utilizing the acquisition point to obtain a light finding point position of the maximum light power value.
In a possible embodiment, the method for obtaining the light finding search path includes:
According to the power-on laser focus on the LD end, arbitrarily selecting a point in a plane coordinate system of the receiving surface of the core insert end as a light finding starting point;
Setting search parameter information taking the light finding starting point as an origin according to the plane coordinate position of the light finding starting point and combining a plane coordinate system of the receiving surface of the ferrule;
according to the searching parameter information, combining plane coordinate information of the light searching starting point to obtain at least two light searching point plane coordinate information;
And obtaining a light finding searching path route map in the plane coordinate system of the receiving surface of the core pin according to the plane coordinates of the at least two light finding points.
In a possible embodiment, the searching parameter information includes:
Searching one or more of radius, searching interval in the searching radius and searching track graph on the plane coordinate system of the receiving surface of the core pin.
In a possible embodiment, the method for obtaining the light finding search path further includes:
Let the search radius r, the search interval h, the coordinate of the light searching start point be (x c,yc),
The x coordinate of the finding spot at any point in the finding path is:
x=cos (360/m (j-1) (i h)) +xc formula 1
The y coordinate of the finding point of any point in the finding path is:
y=sin (360/m (j-1) (i h)) +yc formula 2
In the formulas 1 and 2, m is the number of polygon sides in the search track graph, i is the number of polygons where the light finding points are located, and j is the point location on the polygons in the search track graph;
wherein, the value range of i is 1 to r/h, and the value range of j is 1 to m.
In a possible embodiment, the method for determining the final position of the LD end further includes:
sequentially performing spatial three-way coupling according to the maximum power value light finding point obtained by the light finding searching path as a coupling starting point to obtain the adjustment coordinate information of the maximum power value light finding point;
setting welding working parameters according to welding requirements;
Matching the optical power value in the adjustment coordinate information of the optical point with the welding working parameter by using the maximum power value to obtain a welding working judgment signal;
and according to the welding work judging signal, enabling the welding equipment to perform welding work.
The second aspect of the present invention provides a BOSA structure welding positioning and monitoring system, which adopts the BOSA structure welding positioning and monitoring method according to any one of the first aspect, and the positioning and monitoring system further includes:
The PC control module is used for controlling the power-on of the LD terminal;
The acquisition module is used for acquiring optical power values of coupling between the core insert end and the LD ends at different positions;
The path generation module is used for generating a light finding track according to the light power values of the coupling of the core inserting end and the LD ends at different positions;
The three-way control module is used for controlling the LD end to move along the light finding track in three directions;
the laser welding machine is used for welding the whole structure.
In a possible embodiment, the acquisition module comprises:
The optical power meter is electrically connected with the ferrule end through an optical fiber and is used for collecting the optical power value at the ferrule end.
A third aspect of the present invention provides a computer readable medium having a computer program stored thereon, wherein the program when executed by a processor implements a BOSA structure weld position monitoring method as defined in any of the first aspects.
The beneficial effects of the invention are as follows:
In the embodiment of the invention, the relative relation between the LD end and the tee joint assembly is acquired, the automatic data acquisition is carried out on different LD ends, then the comparison is carried out according to the automatically acquired data result, the relative position of the LD end is automatically adjusted, and the manual excessive participation in the positioning monitoring work on the LD end is not needed. Meanwhile, whether the structure welding packaging work can be judged according to the data result of the position of the LD end after final adjustment, so that the manual participation degree is effectively reduced, and the integral welding efficiency is ensured. The defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art is high in labor degree is effectively overcome.
Drawings
FIG. 1 is a schematic flow chart of an overall method of a BOSA structure welding positioning monitoring method according to the embodiment of the invention;
fig. 2 is a schematic structural diagram of a light receiving and transmitting component of a BOSA structure welding positioning monitoring method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a power-on laser focus and a ferrule receiving surface at an LD end of a BOSA structure welding positioning monitoring method according to the embodiment of the invention;
FIG. 4 is a schematic diagram of the light energy distribution curve of the power-on laser focus on the LD end;
FIG. 5 is a schematic flow chart of a first part of a method for monitoring welding positioning of a BOSA structure according to the embodiment of the invention;
FIG. 6 is a flow chart of a second part of a method for monitoring welding positioning of a BOSA structure according to the embodiment of the invention;
fig. 7 is a flowchart of a final position determining method of an LD end of a BOSA structure welding positioning monitoring method according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Examples
Referring to fig. 1 to 7, in order to solve the defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art has high dependence on manual labor, in this embodiment, the first aspect provides a BOSA structure welding positioning and monitoring method, which performs automatic data acquisition on different LD ends by acquiring the relative relation between the LD ends and the tee assembly, then performs comparison according to the data result of the automatic acquisition, automatically adjusts the relative position of the LD ends, and then does not need to excessively participate in the positioning and monitoring work on the LD ends manually. Meanwhile, whether the structure welding packaging work can be judged according to the data result of the position of the LD end after final adjustment, so that the manual participation degree is effectively reduced, and the integral welding efficiency is ensured. The defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art is high in labor degree is effectively overcome.
Specifically, as shown in fig. 1 to 3, the positioning monitoring method includes:
The integral layout of the target structure can be obtained in a wired or wireless mode, the position of the core inserting end on the tee component is determined, and the initial position of the LD end on the tee component is obtained; the position of the LD end can be obtained manually by carrying out initial loading on the position of the tee assembly on the light emitting and receiving assembly, carrying out image recognition or position recognition on the loaded position, carrying out manual loading to a specific position, and the like, and then obtaining all positions on the whole. And then electrifying the LD end according to the initial position of the LD end on the tee component, and determining the power-on laser focus position of the LD end at the moment. And then setting a collection point (equipment or instrument capable of collecting optical power, such as an optical power meter, and the like) at the core-in end, and combining the power-on laser focus position of the LD end, and collecting the optical power value of the core-in end in real time through the collection point according to the coupling condition of the power-on laser focus position of the LD end at the receiving surface of the core-in end. In this embodiment, the coupling optical power values of the LD end at the ferrule end can be collected in real time by firstly obtaining the initial position of the LD end and then powering up the LD end, after the data collection is performed at the initial position of the LD end, the three-dimensional coordinates (along the space coordinate axes x, y and z) of the LD end at different positions can be moved by the three-axis displacement platform, and the real-time optical power collection and light finding are performed at the LD end at different positions by the ferrule collection point, so as to obtain the optical power values of the coupling of the ferrule end and the LD end at different positions; the final position of the LD end can be obtained by analyzing and processing the light power values of the LD ends at the core inserting end, which are acquired in real time, wherein the final position can be the LD end position with the maximum light power value; and then, according to the final position of the LD end, welding the whole target structure of the light emitting and receiving assembly. In the embodiment of the invention, the relative relation between the LD end and the tee joint assembly is acquired, the automatic data acquisition is carried out on different LD ends, then the comparison is carried out according to the automatically acquired data result, the relative position of the LD end is automatically adjusted, and the manual excessive participation in the positioning monitoring work on the LD end is not needed. Meanwhile, whether the structure welding packaging work can be judged according to the data result of the LD end position after final adjustment. The manual participation degree is effectively reduced, and the machining precision is integrally improved. The defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art is high in labor degree is effectively overcome.
Referring to fig. 4, in this embodiment, when the LD end feeds back that the power laser focus on the receiving surface of the ferrule end is at a different position, the optical power value is also different, and fig. 4 is a graph of optical energy distribution, where the optical power is greater as the ceramic center at the receiving surface of the ferrule end of the ferrule assembly is closer to the power laser focus C. To facilitate understanding how the optical power values of the power laser focus at different locations on the ferrule end are collected, the following examples are provided herein, where the method for obtaining the optical power values of the coupling of the ferrule end to the LD end at different locations includes:
The power-on operation is performed on the LD end according to the initial loading position of the LD end, so that the LD end is powered on to emit laser, and the power-on laser focus of the LD end is determined, as shown in fig. 2 and 3, the power-on laser focus c of the LD end can be determined clearly through the two side point positions a and b of the laser emitting head at the LD end, namely, the power-on laser focus on the LD end is obtained by combining the irradiation structure at the LD end; so as to be convenient for collecting the light power values of the power-on laser focus at different positions of the LD end in the follow-up process; then according to the construction information of the core-inserting end, determining a receiving surface of the core-inserting end, inserting optical fibers at an acquisition point of the core-inserting end, and accessing optical power acquisition equipment such as an optical power meter to acquire the optical power values of the LD end at different positions in real time so as to facilitate setting the light finding paths of the LD end and the core-inserting end at the initial position of the LD end according to the power-on laser focus on the LD end and the receiving surface of the core-inserting end; and then the triaxial mobile equipment moves the LD end according to the light finding paths of the LD end and the ferrule end, and simultaneously, the optical power acquisition equipment is combined to acquire the optical power values of the coupling of the ferrule end and the LD end at different positions. So that the welding position of the LD terminal can be determined according to the optical power data.
Referring to fig. 5 and 6, in this embodiment, in order to facilitate understanding how the search path of the power laser focus of the LD end is obtained on the ceramic receiving surface of the ferrule end, the following example is given. Specifically, the method for setting the light finding paths of the LD end and the ferrule end includes:
Selecting a point on a receiving surface of the ferrule end as a datum point at will, and constructing a plane coordinate system on the ferrule end receiving surface by combining the datum point; the plane design diagram of the receiving surface can be manufactured by acquiring the design information of the receiving surface of the ferrule end, a datum point is arbitrarily selected from the plane design diagram of the receiving surface, and a plane coordinate system of the receiving surface is constructed so as to conveniently determine the position of the power-on laser focus of the LD end. Setting corresponding search parameter information (such as search range radius, interval between each search point position and search direction) on the plane coordinate system of the receiving surface of the ferrule end according to the position coordinate of the power-on laser focus on the LD end; and adjusting and transforming the power-on laser focus position of the LD end in the plane coordinate system of the receiving surface of the ferrule end according to the set searching parameter information (the rest structural positions can be regarded as fixed except the position of the LD end in the whole structure of the light receiving and transmitting assembly, and the mobile LD end can continuously change and adjust the LD end according to the searching parameter through the triaxial mobile equipment), so as to obtain the searching light searching path. The three-axis mobile equipment moves the LD end according to the light finding searching path, and the acquisition points are utilized to acquire the light power values coupled with the power-on laser focus and the receiving surface in different positions of the LD end in the light finding searching path in real time, so that the light finding point of the maximum light power value in the plane coordinate system on the receiving surface is obtained, and the follow-up three-axis mobile equipment can conveniently determine the final position of the LD end according to the light finding point of the maximum light power value in the plane coordinate system on the receiving surface.
In particular, as shown in fig. 5 and fig. 6, in order to facilitate understanding how to find the light point of the maximum light power value in the plane coordinate system on the receiving surface, the following example is given, where the method for obtaining the light search path includes:
According to the power-on laser focus on the LD end, arbitrarily selecting a point in a plane coordinate system of the receiving surface of the core insert end as a light finding starting point; the LD end at the initial position can be electrified, the LD end is electrified to emit laser, the power-on laser focus at the LD end is used as a light finding starting point by randomly irradiating a point on the plane coordinate system of the receiving surface of the ferrule end, then the power-on laser focus at the LD end is used as a light finding starting point according to the plane coordinate position of the light finding starting point and is combined with the plane coordinate system of the receiving surface of the ferrule end, and search parameter information such as search radius, search interval and the like which take the light finding starting point as an origin point in the plane coordinate system of the receiving surface is set; and then according to the searching parameter information and combining the plane coordinate information of the light searching starting point, obtaining at least two light searching point plane coordinate information, so that the triaxial mobile equipment can conveniently move the position of the LD end according to the at least two light searching point plane coordinate information, namely, a light searching route map is obtained on the plane coordinate system of the receiving surface of the core inserting end. It should be noted that, in this embodiment, the search parameter information may be one or more of a radius of the entire search range, a search interval within the search radius, and a search track pattern.
In this embodiment, in order to facilitate understanding how the search path of the power-on laser focus at the LD end is obtained by setting the search parameter information and how the x-axis and y-axis coordinates in the light-finding point path are obtained, the following examples are given herein:
Assuming that a search radius=100 μm, a search interval=5 μm, coordinates of a light finding start point are set to be (0, 0), a pattern in a search track pattern is a polygon, and the number of sides of the polygon is n; in this case, the number of polygons with an interval of 5 μm within a search radius of 100 μm can be found based on the center of the light-finding start point in the planar coordinate system of the receiving surface. I.e. number of polygons = search radius/search interval = 100/5 = 20. Then, the radius of the circumscribed circle of each polygon is respectively calculated according to the number of the polygons; namely, calculating the radius of each polygon circumscribed circle as follows: first circumscribed circle radius=1 search interval= 1*5 =5 μm; second circumscribed circle radius=2×search interval= 2*5 =10 μm; third circumscribed circle radius=3×search interval= 3*5 =15 μm; similarly, the 20 th circumscribed circle radius=20×search interval=20×5=100; namely, the general formula for respectively calculating the radius of the circumscribed circle of each polygon according to the number of the polygons and the searching interval is as follows: the i-th circumscribed circle radius=i×search interval=i×5.
At this time, according to the above, the point coordinates on each polygon are calculated, and the method for calculating the point 1 coordinates of the first polygon point coordinate is as follows:
And according to the polygon edge number and the search interval of the point 1, obtaining the angle data of the point 1 on the polygon. I.e. the angle of point 1 is 360 °/number of sides of polygon (1-1) =360 °/8*0 =0°
At this time, the coordinate information of the point 1 is obtained by integrating the angle data of the point 1, the radius of the polygon circumcircle where the point 1 is located and the search interval:
x 1 = Cos (angle 1) first circumscribed circle radius + find start x coordinate = Cos (0 °) x 5+0 = 5;
y 1 = Sin (angle 1) first circumscribed circle radius + find start y coordinate = Sin (0 °) x 5+0 = 0;
The same principle of the coordinates of the point 2 can be obtained, namely, the angle of the point 2 is 360 degrees/the polygon edge number is (2-1) =360 degrees/8*1 =45 degrees;
x 2 = Cos (angle 2) first circumscribed circle radius + find start x coordinate = Cos (45 °) x 5+0 = 3.535;
y 2 = Sin (angle 2) the first circumscribing circle radius + the light finding origin y coordinate = Sin (45 °) x 5+0 = 3.535;
By analogy, the coordinates of the point 8 can be obtained, namely, the angle of the point 8 is 360 degrees/the polygon edge number is 7=360 degrees/8 (8-7) =315;
x 8 = Cos (angle 8) ×first circumscribed circle radius + find start x coordinate = Cos (315 °) × 5+0 = 3.535;
y 8 = Sin (angle 8) × first circumscribed circle radius + find start y coordinate = Sin (315 °) × 5+0 = -3.535.
And by analogy, when calculating the coordinates of each point in the second polygon, calculating the coordinates of all points of the second polygon by using the radius of the second circumscribed circle. It can thus be derived that:
Let the search radius r, the search interval h, the coordinate of the light searching start point be (x c,yc),
The x coordinate of the finding spot at any point in the finding path is:
x=cos (360/m (j-1) (i h)) +xc formula 1
The y coordinate of the finding point of any point in the finding path is:
y=sin (360/m (j-1) (i h)) +yc formula 2
In the formulas 1 and 2, m is the number of polygon sides in the search track graph, i is the number of polygons where the light finding points are located, and j is the point location on the polygons in the search track graph;
wherein, the value range of i is 1 to r/h, and the value range of j is 1 to m.
The point coordinates of 20 polygons are calculated through the pushing, a motion track route is formed by connecting all the point coordinates, all the point coordinates in the motion track route are sent to a triaxial mobile device, the triaxial mobile device can be controlled to enable x motor shafts and y motor shafts to run according to the motion track route, an LD end is moved, and then the optical power value is collected for each point in real time.
Referring to fig. 7, in this embodiment, in order to facilitate understanding how to determine a position where the power-up laser focus of the LD end is located on the receiving surface finally, and how to determine that the power value of the power-up laser focus of the LD end is located on the receiving surface of the ferrule end to be the largest, so as to determine a position where the coupling power of the LD end is the largest, a method for determining the final position of the LD end further includes:
Sequentially performing spatial three-way coupling according to the maximum power value light finding point obtained by the light finding searching path as a coupling starting point to obtain the adjustment coordinate information of the maximum power value light finding point; the method comprises the steps of taking a light finding point of the maximum light power value on a plane coordinate system of a receiving surface as a coupling starting point, sequentially carrying out position transformation of x, y and z three axes by using a three-axis mobile device with the coupling starting point as a starting point, simultaneously collecting the light power value of the position transformation in real time, and obtaining the adjustment coordinate information of the light finding point of the maximum light power value according to the change condition of the light power value. Then, according to the welding requirement of the optical power value of the optical receiving and transmitting assembly structure, setting corresponding welding working parameters for judging the optical power value; matching the optical power value in the adjustment coordinate information of the optical point with the welding working parameter by using the maximum power value to obtain a welding working judgment signal; and enabling the welding equipment to perform welding work according to the welding work judging signal.
Referring to fig. 7, in this embodiment, in order to facilitate understanding how to obtain the adjustment coordinate information of the maximum power value light finding point by performing spatial three-way coupling with the light finding point, the following description is given here:
x-direction coupling: the LD end moves in the x direction at the light finding point of the maximum light power value, simultaneously collects the light power in real time, compares the light power values after moving at least one fixed distance to obtain the coordinates of the maximum light power value and the maximum light power value, and determines the adjustment coordinate information-A1 of the LD end in the x axis direction;
y-direction coupling: and the LD end moves in the y direction at the A1 point, simultaneously acquires the optical power in real time, compares the optical power values after moving at least one fixed distance to obtain the maximum optical power value and the maximum coordinate at the moment, and determines the adjustment coordinate information-A2 of the LD end in the y axis direction.
Z-direction coupling: when the LD end moves in the z direction at the A2 point, the optical power is collected in real time, after at least one fixed distance is moved, the maximum optical power value and the maximum value coordinate are obtained by comparing the optical power values, and the adjustment coordinate information of the LD end in the z axis direction is determined.
In this embodiment, it should be noted that, after the x-direction coupling and the y-direction coupling are sequentially performed, an optical power value is obtained, and the obtained optical power value is compared with the last optical power value, if the optical power value is changed by the y-direction coupling, the x-direction coupling and the y-direction coupling are continuously repeated, and if the optical power value is reduced, the z-direction coupling is performed.
And then, the coordinates are adjusted by the coupling starting points which are changed in sequence through the x, y and z axes, and the three-axis coupling of the x, y and z axes is continued to obtain the optical power value. And by analogy, obtaining a plurality of optical power values acquired by coordinates after the coupling starting points are adjusted through the x, y and z axis changes in sequence, if the optical power value acquired at the last time is compared with the optical power value acquired at the previous time, continuously repeating the coupling starting point adjustment operation after the x, y and z axis changes in sequence if the optical power value acquired at the last time is increased, and if the optical power value is reduced, ending the coupling.
Finally obtaining the maximum value of the coupling power, comparing the maximum value with the judging value, and starting the laser welder to weld the LD end component structure, the three-way component structure and the ferrule end component structure together if the maximum value is larger than the judging value. And if the detected value is smaller than the judging value, alarming to prompt manual clamping of a new product again.
For further understanding of the final determination of the welding position of the LD end herein, the x-direction coupling, the y-direction coupling, and the z-direction coupling may be defined as a first step, a second step, and a fourth step (since the LD end is subjected to the first step of x-direction coupling and the second step of y-direction coupling and then requires a set alignment operation), specifically, as shown in fig. 4, the method for determining the final position of the LD end further includes:
After the light finding is finished, the LD end moves in the x direction at the light finding point of the maximum light power value (the light finding point is defined as the point A for convenience of subsequent description) through the three-axis mobile device, the light power value is collected in real time, after a certain searching distance is moved, the light power values in the searching distance are compared, the coordinates of the position of the maximum light power value and the position of the maximum light power value of the LD end in the searching distance are obtained, and the power-on laser focus of the LD end is moved to the position of the coordinate of the maximum light power value through the three-axis mobile device for convenience of subsequent description, and the point A1 is defined as the point A.
And the LD end moves in the y direction through the triaxial mobile equipment at the A1 point, simultaneously acquires the optical power value in real time, compares the optical power values in the searching distance after moving for a certain searching distance to obtain the coordinates of the maximum optical power value and the maximum optical power value of the LD end in the searching distance, and moves to the coordinate of the maximum optical power value through the triaxial mobile equipment by the power-on laser focus of the LD end, so that the follow-up description is facilitated, and the point is defined as the A2 point.
And sequentially completing the first step and the second step to obtain an optical power value, wherein the third step is to compare the obtained optical power value with the last optical power value, if the optical power value is larger, continuing to repeat the first step and the second step, and if the optical power value is smaller, performing coupling operation according to the fourth step, and specifically:
When the LD end moves in the z direction at the A2 point, the optical power is collected in real time, after a certain searching distance is moved, the optical power values in the searching distance are compared to obtain the coordinates of the maximum optical power value and the maximum optical power value of the LD end in the searching distance, and the power-on laser focus of the LD end is moved to the coordinates of the maximum optical power value through the triaxial mobile equipment.
After the coupling in the z direction is finished, continuing to use the light finding point after the coupling adjustment in the z direction as a coupling starting point, and continuing to couple the first step, the second step and the third step to obtain the light power value.
Repeating the above operation, continuing to execute the fourth step, the first step, the second step and the third step to obtain the optical power value, and comparing with the last step, if the optical power value is larger, continuing to repeat the fourth step, the first step, the second step and the third step, if the optical power value is smaller, determining the point as the final position point coordinate of the LD end, and performing integral structure welding packaging on the LD end component structure, the tee component structure and the ferrule end component structure by using a laser welding machine according to the position point coordinate.
The second aspect of the present invention provides a BOSA structure welding positioning and monitoring system, which adopts the BOSA structure welding positioning and monitoring method according to any one of the first aspect, and the positioning and monitoring system further includes: the system comprises a PC control module, an acquisition module, a path generation module, a three-way control module and laser welding, wherein the PC control module is used for controlling the power-on of an LD end, and the PC control module is used for controlling the normal running of the whole monitoring system, namely, the PC control module can be used for electrically controlling the acquisition of optical power data and controlling the movement of the LD end. The acquisition module is used for acquiring optical power values of coupling between the ferrule end and the LD ends at different positions, namely, the acquisition module is electrically connected with the PC control module. The path generation module is electrically connected with the PC control module and is used for generating a light finding track according to the light power values of the coupling of the ferrule end and the LD ends at different positions. The three-way control module is electrically connected with the PC control module and is used for controlling the LD end to move in three directions along the light finding track; the laser welder is electrically connected with the PC control module and is used for welding the whole structure. In this embodiment, the positioning monitoring system collects and integrates various data of the LD end component structure through the PC control module and the collection module, then generates the light-finding path of the LD end through the path generating module, adjusts the position of the LD end by using the three-way control module, and can judge whether the structure welding and packaging work can be performed according to the data result at the position of the LD end after final adjustment. The manual participation degree is effectively reduced, and the machining precision is integrally improved. The defect that the method for welding the packaging position of the light emitting and receiving structure in the prior art is high in labor degree is effectively overcome. In a possible embodiment, the acquisition module comprises: the optical power meter is electrically connected with the ferrule end through an optical fiber and is used for collecting the optical power value at the ferrule end.
In some embodiments, the location monitoring system may communicate using any currently known or future developed network protocol, such as HTTP (Hyper Text Transfer Protocol ), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
A third aspect of the present invention provides a computer readable medium having a computer program stored thereon, wherein the program when executed by a processor implements a BOSA structure weld position monitoring method as defined in any of the first aspects. The computer readable medium in this embodiment may write computer program code for performing the operations of some embodiments of the present disclosure in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In particular, according to some embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, some embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flow chart.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (9)
1. The BOSA structure welding positioning monitoring method is characterized by comprising the following steps of:
the method comprises the steps of obtaining the overall layout of a target structure, determining the position of a core inserting end on a tee component, and obtaining the initial position of an LD end on the tee component;
determining the power-on laser focus position of the LD end according to the initial position of the LD end on the tee joint assembly;
setting an acquisition point at the core-inserting end, and combining the power-on laser focus position of the LD end, and acquiring the optical power value of the core-inserting end in real time through the acquisition point;
the LD end is powered on, the position of the LD end is subjected to three-dimensional coordinate movement, and meanwhile, light is found out from the LD ends at different positions through the acquisition points, so that the light power values of the coupling of the ferrule end and the LD ends at different positions are obtained;
Determining the final position of the LD end according to the optical power values of the ferrule end and the LD ends at different positions;
Welding the whole target structure according to the final position of the LD end;
the method for obtaining the optical power value of the coupling of the ferrule end and the LD end at different positions comprises the following steps:
according to the initial position of the LD end, the laser is powered on and emitted at the LD end, and the laser focus powered on the LD end is obtained by combining the irradiation structure at the LD end;
according to the construction information of the core inserting end, determining a receiving surface of the core inserting end, inserting an optical fiber at an acquisition point of the core inserting end, and accessing optical power acquisition equipment;
setting a light finding path of the LD end and the core inserting end according to the power-on laser focus on the LD end and the receiving surface of the core inserting end at the initial position of the LD end;
And acquiring the optical power values of the coupling of the core inserting end and the LD end at different positions according to the optical path of the LD end and the core inserting end and by combining optical power acquisition equipment.
2. The BOSA structure welding positioning monitoring method of claim 1, wherein the method for setting the light path between the LD end and the ferrule end comprises:
selecting a point on a receiving surface of the ferrule end as a datum point at will, and constructing a plane coordinate system on the ferrule end receiving surface by combining the datum point;
setting search parameter information on a plane coordinate system of a core-insert receiving surface according to an electrified laser focus on an LD end;
Obtaining a light finding searching path according to the searching parameter information and the plane coordinate system of the core inserting end receiving surface;
And moving the LD end according to the light finding searching path, and acquiring the light power values of different positions of the LD end in the light finding searching path in real time by utilizing the acquisition point to obtain a light finding point position of the maximum light power value.
3. The BOSA structure weld positioning monitoring method of claim 2, wherein the method for obtaining the find path comprises:
According to the power-on laser focus on the LD end, arbitrarily selecting a point in a plane coordinate system of the receiving surface of the core insert end as a light finding starting point;
Setting search parameter information taking the light finding starting point as an origin according to the plane coordinate position of the light finding starting point and combining a plane coordinate system of the receiving surface of the ferrule;
according to the searching parameter information, combining plane coordinate information of the light searching starting point to obtain at least two light searching point plane coordinate information;
And obtaining a light finding searching path route map in the plane coordinate system of the receiving surface of the core pin according to the plane coordinates of the at least two light finding points.
4. A BOSA structure welding position monitoring method according to claim 2 or 3, characterized in that the information according to the search parameters comprises:
Searching one or more of radius, searching interval in the searching radius and searching track graph on the plane coordinate system of the receiving surface of the core pin.
5. The BOSA structure weld positioning monitoring method of claim 4, further comprising:
Let the search radius r, the search interval h, the coordinate of the light searching start point be (x c,yc),
The x coordinate of the finding spot at any point in the finding path is:
，
the y coordinate of the finding point of any point in the finding path is:
，
In the formulas 1 and 2, m is the number of polygon sides in the search track graph, i is the number of polygons where the light finding points are located, and j is the point location on the polygons in the search track graph;
wherein, the value range of i is 1 to r/h, and the value range of j is 1 to m.
6. The BOSA structure weld positioning monitoring method of claim 5, further comprising:
sequentially performing spatial three-way coupling according to the maximum power value light finding point obtained by the light finding searching path as a coupling starting point to obtain the adjustment coordinate information of the maximum power value light finding point;
setting welding working parameters according to welding requirements;
Matching the optical power value in the adjustment coordinate information of the optical point with the welding working parameter by using the maximum power value to obtain a welding working judgment signal;
and according to the welding work judging signal, enabling the welding equipment to perform welding work.
7. A BOSA structure welding position monitoring system, characterized in that a BOSA structure welding position monitoring method according to any one of claims 1-6 is used, the position monitoring system further comprising:
The PC control module is used for controlling the power-on of the LD terminal;
The acquisition module is used for acquiring optical power values of coupling between the core insert end and the LD ends at different positions;
The path generation module is used for generating a light finding track according to the light power values of the coupling of the core inserting end and the LD ends at different positions;
The three-way control module is used for controlling the LD end to move along the light finding track in three directions;
the laser welding machine is used for welding the whole structure.
8. The BOSA structure weld position monitoring system of claim 7, wherein the acquisition module comprises:
The optical power meter is electrically connected with the ferrule end through an optical fiber and is used for collecting the optical power value at the ferrule end.
9. A computer readable medium, having stored thereon a computer program, wherein the program when executed by a processor implements a BOSA structure weld position monitoring method as claimed in any of claims 1-7.
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