CN113325002A - Full-automatic welding detection production line for loudspeaker based on molten tin soldering and AI visual detection - Google Patents
Full-automatic welding detection production line for loudspeaker based on molten tin soldering and AI visual detection Download PDFInfo
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- CN113325002A CN113325002A CN202110591323.2A CN202110591323A CN113325002A CN 113325002 A CN113325002 A CN 113325002A CN 202110591323 A CN202110591323 A CN 202110591323A CN 113325002 A CN113325002 A CN 113325002A
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- 238000003466 welding Methods 0.000 title claims abstract description 249
- 238000001514 detection method Methods 0.000 title claims abstract description 91
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 230000000007 visual effect Effects 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000005476 soldering Methods 0.000 title description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 124
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 238000013136 deep learning model Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 53
- 230000000903 blocking effect Effects 0.000 claims description 29
- 238000012546 transfer Methods 0.000 claims description 28
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 238000011179 visual inspection Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 18
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000013473 artificial intelligence Methods 0.000 description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013095 identification testing Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003058 natural language processing Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013135 deep learning Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/845—Objects on a conveyor
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Abstract
The invention discloses a full-automatic welding detection production line of a loudspeaker based on molten tin welding and AI visual detection, which comprises a main assembly line, a welding feeding conveying line which is vertically butted with the main assembly line and integrally distributed in an L shape, a plurality of welding units arranged along the main assembly line, a welding in-out conveying line, a conveying mechanism, an AI visual detection unit and a waste discharge mechanism, wherein one end of the welding in-out conveying line is vertically butted with the welding feeding conveying line, the other end of the welding in-out conveying line is vertically butted with the main assembly line, the conveying clamping mechanism is arranged above the tail end of the main assembly line and is used for taking down a welding cover plate on a product and placing the welding cover plate on a cover plate backflow conveying line, and the AI visual detection unit is used for detecting a welding point of the product. According to the invention, the purpose of welding is achieved by spraying the laser melting solder balls to the positions of the bonding pads, and meanwhile, automatic detection is carried out on the welding points by matching with an AI deep learning model, so that the welding and detection efficiency of the product is greatly improved, the reliability of the detection result of the welding points is improved, the welding quality is improved, and the product quality is guaranteed.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of automation equipment, and particularly relates to a full-automatic loudspeaker welding detection production line based on molten tin welding and AI visual detection.
[ background of the invention ]
At present, a Bluetooth headset loudspeaker is provided, and a welding process is adopted in the production process. The traditional method comprises the steps of automatic product feeding, flux dispensing, tin ring loading, welding and welding spot detection, wherein manual operation and detection are adopted for the welding spot detection, the flux dispensing and the tin ring loading, 22 manpower are required for the whole process to be matched with three welding modules and two detection stations, the productivity is low, the welding quality is poor, and the quality is unstable; visual fatigue is easy to generate by manual detection, and the product quality cannot be guaranteed.
Therefore, there is a need to provide a new full-automatic welding detection production line for speakers based on molten tin welding and AI visual detection to solve the above problems.
[ summary of the invention ]
The invention mainly aims to provide a full-automatic loudspeaker welding detection production line based on molten tin welding and AI visual detection, which greatly improves the welding and detection efficiency of products, improves the welding quality and ensures the product quality.
The invention realizes the purpose through the following technical scheme: full-automatic welding detection production line of speaker based on melting tin welding and AI visual inspection, it includes
A main assembly line;
the welding and feeding conveying line is integrally distributed in an L shape and is vertically butted with the main assembly line;
a plurality of welding units are distributed along the main assembly line;
one end of the welding in-out conveying line is vertically butted with the welding feeding conveying line, the other end of the welding in-out conveying line is vertically butted with the main assembly line, and meanwhile, the welding unit flows through the welding in-out conveying line;
the cover plate backflow conveying line is arranged above the main assembly line in parallel;
the conveying and clamping mechanism is arranged above the tail end of the main assembly line and is used for taking down a welding cover plate on a product and placing the welding cover plate on the cover plate backflow conveying line;
the AI visual detection unit is used for carrying out welding detection on the product based on the deep learning model; and
a waste discharge mechanism.
Furthermore, a first steering pushing mechanism is arranged at the joint of the main assembly line and the welding and feeding conveying line, and comprises a first air cylinder positioned above the main assembly line and a first material pushing plate driven by the first air cylinder to move in parallel with the conveying direction of the welding and feeding conveying line;
at least one pair of first stop mechanisms is arranged on the main assembly line and positioned at the upstream of the first steering pushing mechanism; the first material blocking mechanism is arranged along the conveying direction of the main assembly line; the first material blocking mechanism comprises a second cylinder and a first material blocking plate driven by the second cylinder to move up and down.
Further, the welding pay-off transfer chain include with the perpendicular first welding pay-off line that docks of mainstream waterline, with the terminal perpendicular butt joint of first welding pay-off line and with the parallel second welding pay-off line of mainstream waterline, setting are in first welding pay-off line with the first conveying mechanism that turns to of second welding pay-off line intersection, edge at least a pair of second stock stop that first welding pay-off line set up, edge the setting of second welding pay-off line and with a plurality of third stock stops that welding business turn over transfer chain position corresponds.
Further, the second material blocking mechanism comprises a third cylinder and a second material blocking plate driven by the third cylinder to move up and down; the second material blocking mechanism is arranged below the first welding material feeding line;
the third material blocking mechanism comprises a fourth cylinder, a third material blocking plate driven by the fourth cylinder to move up and down, and a first sensor fixed on the third material blocking plate and used for detecting whether a product is in place or not; and the third material blocking mechanism is arranged below the second welding and feeding line.
Further, first conveying mechanism that turns to includes first support, fixes the fifth cylinder of first support upper surface, receives the drive of fifth cylinder carries out the first backup pad of up-and-down motion, rotatable setting is in the first support roller at both ends around the first backup pad, with first backup pad fixed connection just is located second backup pad, rotatable setting of fifth cylinder below are in second support roller in the second backup pad, fix in the second backup pad and drive the rotatory first motor of second support roller, be the return circuit around establishing first support roller with first conveyer belt that turns to on the second support roller, first conveyer belt that turns to is two be formed with the transport surface on the first support roller.
Furthermore, a second steering conveying mechanism for transferring the products from the second welding feeding line to the welding in-out conveying line is arranged at the input end of the welding in-out conveying line;
the second steering conveying mechanism comprises a support, a first rotating shaft, a plurality of first synchronous pulleys, a plurality of second synchronous pulleys, a second steering conveying belt, a second motor and a sixth air cylinder, wherein one side of the support is rotatably erected on a hinge seat, the first rotating shaft is rotatably erected at one end of the support and is coaxially arranged with a support rotating shaft, the plurality of first synchronous pulleys are arranged on the first rotating shaft, the plurality of second synchronous pulleys are arranged at the other end of the support, the second steering conveying belt is wound on the first synchronous pulleys and the second synchronous pulleys and forms the same conveying direction with the welding inlet and outlet conveying line, the second motor drives the first rotating shaft to rotate, and the sixth air cylinder drives the support to rotate around the axis of the hinge seat;
the support is perpendicular to the second welding feeding line is distributed, and the second welding feeding line is provided with an avoiding notch for allowing the support to sink to the position below the second welding feeding line.
Furthermore, a first jacking positioning mechanism and a jacking positioning adjusting mechanism for jacking positioning and angle adjustment of the product at the welding station are further arranged below the welding in-out conveying line along the conveying direction;
the first jacking positioning mechanism comprises a seventh cylinder, an eighth cylinder, a first jacking plate driven by the seventh cylinder to move up and down, and a second sensor driven by the eighth cylinder to move up and down and used for detecting whether a product is in place or not;
the jacking positioning adjusting mechanism comprises a ninth cylinder, a tenth cylinder, a third supporting plate driven by the ninth cylinder to move up and down, a second rotating shaft rotatably erected on the third supporting plate, a second jacking plate fixed on the second rotating shaft, a third motor fixed on the third supporting plate and driving the second rotating shaft to rotate, and an upper limit position assembly located on two sides of the second jacking plate and matched with the second jacking plate to fix a product. The second lifting plate is provided with a second positioning column.
Furthermore, the output end of the welding in-out conveying line is also provided with a second steering pushing mechanism for pushing the product from the welding in-out conveying line to the main production line; the second steering pushing mechanism comprises an eleventh air cylinder, a fourth supporting plate driven by the eleventh air cylinder to move parallel to the welding in-out conveying line, a twelfth air cylinder fixed on the fourth supporting plate, and a second pushing plate driven by the twelfth air cylinder to move up and down.
Furthermore, the welding unit comprises a three-axis transfer mechanism, a seventh support plate driven by the three-axis transfer mechanism to move in space, a tin melting welding head fixed on the seventh support plate, a tin ball feeding mechanism communicated with a tin ball feeding channel of the tin melting welding head, a visual positioning assembly and a laser range finder arranged on the seventh support plate, and a detection camera for detecting whether tin is hung on a nozzle in the tin melting welding head.
The automatic welding device is characterized by further comprising a detection conveying line positioned above the tail end of the main assembly line, wherein the AI visual detection unit is arranged above the detection conveying line, a product is grabbed onto the detection conveying line from the main assembly line through the carrying and clamping mechanism, and then a welding cover plate on the product is taken out and placed onto the cover plate reflow conveying line; the detection conveying line is provided with a jacking positioning mechanism corresponding to the cover plate taking-out station and the AI detection station; the cover plate backflow conveying line is arranged in parallel to the main assembly line and is positioned above the main assembly line, and one end of the cover plate backflow conveying line extends to the input end of the main assembly line;
the AI visual detection unit comprises a first camera and a second camera which are arranged at an angle, and an upper computer which is electrically connected with the first camera and the second camera and is provided with welding spot AI detection system software;
the carrying and clamping mechanism comprises a fourth motor, a fifth supporting plate driven by the fourth motor to perform horizontal linear motion, a fifth motor fixed on the fifth supporting plate, a sixth supporting plate driven by the fifth motor to perform vertical motion, a thirteenth air cylinder and a fourteenth air cylinder fixed on the sixth supporting plate, a clamping jaw driven by the thirteenth air cylinder to perform clamping or opening motion, and a suction nozzle driven by the fourteenth air cylinder to perform vertical motion.
Compared with the prior art, the full-automatic loudspeaker welding detection production line based on the molten tin welding and AI visual detection has the beneficial effects that: the full-automatic feeding, conveying, tin ball spraying welding, AI visual automatic detection, automatic waste discharge and automatic output of the Bluetooth headset loudspeaker are realized, the welding detection efficiency is greatly improved, and the welding quality and the reliability of a detection result are improved. Specifically, the welding purpose is achieved by adopting laser to melt the solder balls and spraying the solder balls to the positions of the bonding pads, and meanwhile, the novel deep analysis equipment matched with AI (artificial intelligence) inspection welding spots has the advantages of non-contact, no soldering flux, small heat, deep analysis, accuracy, controllability and the like; compared with the common welding method, the method has the characteristics of impact deformation and instantaneous solidification, has the advantages of high welding speed, small requirement on space and simple and controllable operation, and is particularly suitable for the manufacturing process of high-precision electronic products such as earphones; the AI identification test is adopted, and the test system formed based on the technologies of artificial intelligence learning, an intelligent system, image identification, natural language processing and the like has the advantages of high precision, accuracy, stability, high efficiency and the like.
[ description of the drawings ]
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of a main pipeline in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first welding feed line according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first steering conveying mechanism in the embodiment of the invention;
FIG. 5 is a schematic structural diagram of a welding unit, a second welding feeding line and a welding in-out feeding line according to an embodiment of the present invention;
FIG. 6 is a schematic view of a part of the second welding feed line according to the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a second steering conveying mechanism in the embodiment of the invention;
FIG. 8 is a schematic view of the structure of the welding in and out of the conveyor line in the embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a first jacking-positioning mechanism according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a jacking-positioning adjustment mechanism according to an embodiment of the present invention;
FIG. 11 is a schematic view of a portion of a jacking position adjusting mechanism according to an embodiment of the present invention;
FIG. 12 is a partial schematic view of a welding unit according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of an end of pipeline configuration in an embodiment of the present invention;
FIG. 14 is a schematic view of a portion of a transport fixture in accordance with an embodiment of the present invention;
the figures in the drawings represent:
100 a full-automatic loudspeaker welding detection production line based on molten tin welding and AI visual detection;
1, a main assembly line, 11 a first steering pushing mechanism, 111 a first air cylinder, 112 a first pushing plate, 12 a first stop mechanism, 121 a second air cylinder and 122 a first stop plate;
2, a welding feeding conveying line, 21 a first welding feeding line, 22 a second welding feeding line, 221 an avoidance notch, 23 a first steering conveying mechanism, 231 a first support, 232 a fifth cylinder, 233 a first support plate, 234 a first support roller, 235 a second support roller, 236 a first motor, 237 a first steering conveying belt, 238 a baffle, 239 a second support plate, 24 a second baffle mechanism, 241 a third cylinder, 242 a second baffle plate, 25 a third baffle mechanism, 251 a fourth cylinder, 252 a third baffle plate and 253 a first sensor;
3, a welding unit, 31, a three-axis transfer mechanism, 32, a seventh supporting plate, 33, a tin-melting welding head, 34, a visual positioning assembly, 35, a laser range finder and 36, a detection camera;
4, welding an in-out conveying line, 41 a second steering conveying mechanism, 411 a support, 412 a first rotating shaft, 413 a first synchronous pulley, 414 a second synchronous pulley, 415 a second steering conveying belt, 416 a second motor, 417 a hinged seat, 418 a sixth cylinder, 42 a first jacking and positioning mechanism, 421 a seventh cylinder, 422 an eighth cylinder, 423 a first jacking plate, 424 a second sensor, 425 a first positioning column, 43 a jacking and positioning adjusting mechanism, 431 a ninth cylinder, 432 a tenth cylinder, 433 a third supporting plate, 434 a second rotating shaft, 435 a second jacking plate, 436 a third motor, 437 an upper limiting assembly, 438 a second positioning column, 439 a third sensor, 44 a second steering pushing mechanism, 441 an eleventh cylinder, 442 a fourth supporting plate, a twelfth cylinder and 444 a second pushing plate;
5, a cover plate backflow conveying line;
6 a carrying clamping mechanism, 61 a fourth motor, 62 a fifth supporting plate, 63 a fifth motor, 64 a sixth supporting plate, 65 a thirteenth air cylinder, 66 a fourteenth air cylinder, 67 a clamping jaw and 68 a suction nozzle;
7AI visual detection unit, 71 first camera, 72 second camera;
8 waste discharge mechanisms, 81 fifteenth air cylinders, 82 third material pushing plates and 83 unqualified product discharge flow channels;
9 detecting the conveying line, and 91 jacking and positioning the mechanism.
[ detailed description ] embodiments
The first embodiment is as follows:
referring to fig. 1 to 14, the present embodiment is a full-automatic welding detection production line 100 for speakers based on molten tin soldering and AI visual detection, which includes a main assembly line 1, a welding feeding conveyor line 2 vertically butted with the main assembly line 1 and integrally distributed in an L-shape, a plurality of welding units 3 arranged along the main assembly line 1, a welding in-out conveyor line 4 with one end vertically butted with the welding feeding conveyor line 2 and the other end vertically butted with the main assembly line 1 and passing through the welding units 3, a carrying clamping mechanism 6 arranged above the end of the main assembly line 1 and taking down a welding cover plate on a product and placing the welding cover plate on a cover plate reflow conveyor line 5, an AI visual detection unit 7 for detecting welding points of the product, and a waste discharge mechanism 8.
The main assembly line 1 is provided with a first steering pushing mechanism 11 at the joint with the welding and feeding conveying line 2, and the first steering pushing mechanism 11 comprises a first cylinder 111 located above the main assembly line 1 and a first material pushing plate 112 driven by the first cylinder 111 to move in the conveying direction of the parallel welding and feeding conveying line 2. The first material pushing plate 112 horizontally pushes the products on the main assembly line 1 to the welding and feeding conveying line 2, so that the turning conveying of the products is realized.
At least one pair of first stop mechanisms 12 is arranged on the main assembly line 1 at the upstream of the first steering pushing mechanism 11. The first stock stop 12 is arranged along the conveying direction of the main assembly line 1. The first material blocking mechanism 12 includes a second cylinder 121 and a first material blocking plate 122 driven by the second cylinder 121 to move up and down. Through the arrangement of the two first material blocking mechanisms 12, products are controlled to be conveyed to the first turning material pushing mechanism 11 one by one within a set time.
The welding feeding conveying line 2 comprises a first welding feeding line 21 vertically butted with the main assembly line 1, a second welding feeding line 22 vertically butted with the tail end of the first welding feeding line 21 and parallel to the main assembly line 1, a first steering conveying mechanism 23 arranged at the intersection of the first welding feeding line 21 and the second welding feeding line 22, at least one pair of second material blocking mechanisms 24 arranged along the first welding feeding line 21, and a plurality of third material blocking mechanisms 25 arranged along the second welding feeding line 22 and corresponding to the positions of the welding feeding and discharging conveying lines 4.
The second material blocking mechanism 24 includes a third cylinder 241 and a second material blocking plate 242 driven by the third cylinder 241 to move up and down. The two second material stopping mechanisms 24 are mainly used for conveying the products to the position of the first steering conveying mechanism 23 one by one within a set time. The second stopper mechanism 24 is disposed below the first welding feed line 21.
The third material stopping mechanism 25 includes a fourth cylinder 251, a third material stopping plate 252 driven by the fourth cylinder 251 to move up and down, and a first sensor 253 fixed on the third material stopping plate 252 and detecting whether the product is in place. The third material retaining mechanism 25 is disposed below the second welding feed line 22.
The first steering and conveying mechanism 23 includes a first support 231, a fifth cylinder 232 fixed on the upper surface of the first support 231, a first support plate 233 driven by the fifth cylinder 232 to move up and down, first support rollers 234 rotatably disposed at the front and rear ends of the first support plate 232, a second support plate 239 fixedly connected to the first support plate 233 and located below the fifth cylinder 232, a second support roller 235 rotatably disposed on the second support plate 239, a first motor 236 fixed on the second support plate 239 and driving the second support roller 235 to rotate, and a first steering and conveying belt 237 looped around the first support roller 234 and the second support roller 235, wherein the first steering and conveying belt 237 forms conveying surfaces on the two first support rollers 234. One end of the first support plate 233 at one side of the first turn conveyor 237 is provided with a product blocking stop 238.
In the initial state, the fifth cylinder 232 is in the retracted state, and the first diverting conveyor 237 is lower than the conveying surface of the first welding material conveying line 21; when the product reaches the set position, the fifth cylinder 232 is extended, the first diverting conveyor 237 lifts the product upward, and the first motor 236 is turned on to deliver the product onto the second welding feed line 22.
The input end of the welding in-out transfer line 4 is provided with a second diverting conveyor 41 that transfers the product from the second welding feed line 22 to the welding in-out transfer line 4. The second turning conveying mechanism 41 includes a bracket 411 rotatably mounted on an articulated seat 417, a first rotating shaft 412 rotatably mounted on one end of the bracket 411 and coaxially disposed with a rotating shaft of the bracket 411, a plurality of first synchronous pulleys 413 disposed on the first rotating shaft 412, a plurality of second synchronous pulleys 414 disposed on the other end of the bracket 411, a second turning conveying belt 415 wound on the first synchronous pulleys 413 and the second synchronous pulleys 414 and forming the same conveying direction as the welding in and out of the conveying line 4, a second motor 416 driving the first rotating shaft 412 to rotate, and a sixth air cylinder 418 driving the bracket 411 to rotate around the axis of the articulated seat 417. The brackets 411 are distributed perpendicular to the second welding material feeding line 22, and an avoiding notch 221 for the brackets 411 to sink below the second welding material feeding line 22 is formed in the second welding material feeding line 22. The second motor 416 is connected with the first rotating shaft 412 through a synchronous belt and a synchronous pulley to realize rotary transmission.
The support 411 is a hollow rectangular frame structure, one side of the support is a first rotating shaft 412 to form a connecting side, the other two pairs of sides are wound by the second turning conveyor belt 415, the second turning conveyor belt 415 and the corresponding support side enter the avoidance notch 221 under the driving of the sixth air cylinder 418, and then sink to the lower part of the second welding feeding line 22, or transfer a product on the second welding feeding line 22 to the welding in-out feeding line 4 from the lower part of the second welding feeding line 22.
A first jacking positioning mechanism 42 and a jacking positioning adjusting mechanism 43 for jacking positioning and angle adjustment of the product at the welding station are further arranged below the welding in-out conveying line 4 along the conveying direction. The first jacking positioning mechanism 42 comprises a seventh cylinder 421 and an eighth cylinder 422, a first jacking plate 423 driven by the seventh cylinder 421 to move up and down, and a second sensor 424 driven by the eighth cylinder 422 to move up and down and detect whether a product is in place, wherein a code scanner is arranged above the first jacking positioning mechanism 42 and used for scanning two-dimensional codes on the product and binding subsequent welded pictures with the code scanner. The first raising plate 423 is provided with a first positioning post 425. The jacking positioning adjusting mechanism 43 comprises a ninth cylinder 431 and a tenth cylinder 432, a third supporting plate 433 driven by the ninth cylinder 431 to move up and down, a second rotating shaft 434 rotatably erected on the third supporting plate 433, a second jacking plate 435 fixed on the second rotating shaft 434, a third motor 436 fixed on the third supporting plate 433 and driving the second rotating shaft 434 to rotate, an upper limit positioning component 437 positioned at two sides of the second jacking plate 435 and matched with the second jacking plate 435 to fix a product, and a third sensor 439 driven by the tenth cylinder 432 to move up and down and detecting whether the product is in place. A second positioning post 438 is disposed on the second lifting plate 435. The upper limiting component 437 comprises an upper limiting plate and a third positioning column arranged on the upper limiting plate.
The output end of the welding in-out conveying line 4 is also provided with a second steering pushing mechanism 44 for pushing the product from the welding in-out conveying line 4 to the main assembly line 1. The second diverting and pushing mechanism 44 includes an eleventh cylinder 441, a fourth supporting plate 442 driven by the eleventh cylinder 441 to move in parallel with the welding in and out of the conveying line 4, a twelfth cylinder 443 fixed to the fourth supporting plate 442, and a second pushing plate 444 driven by the twelfth cylinder 443 to move up and down.
The soldering unit 3 includes a three-axis transfer mechanism 31, a seventh support plate 32 driven by the three-axis transfer mechanism 31 to move spatially, a solder ball bonding head 33 fixed on the seventh support plate 32, a solder ball feeding mechanism (not shown) communicating with a solder ball feeding passage of the solder ball bonding head 33, a visual positioning assembly 34 and a laser distance meter 35 provided on the seventh support plate 32, and a detection camera 36 for detecting whether or not tin is attached to a nozzle of the solder ball bonding head 33.
The solder head 33 and the solder ball feeding mechanism are commercially available directly.
The visual positioning assembly 34 is used for collecting the position of the bonding pad, transmitting signals to the nozzle, defining the position of the nozzle and reducing poor welding.
The laser range finder 35 is used for assisting the three-axis transfer mechanism 31 to drive the molten tin soldering joint 33 to move accurately, measuring the Z-axis relative height of a product soldering pad, transmitting a signal to the nozzle, defining the Z-axis height of the nozzle and avoiding collision between the nozzle and the pad.
The detection camera 36 is used for detecting whether tin is hung on the nozzle in the tin melting welding head 33, detecting once after a set number of products are processed, and alarming to inform cleaning if tin is hung.
The molten tin welding joint 33 is provided with an air nozzle which is communicated with a nitrogen gas source through a pipeline; and the laser fiber is arranged coaxially with the nozzle, and the dissolved solder balls are sprayed onto the bonding pad by using nitrogen. When the tin ball is dissolved to block the nozzle, the nitrogen pressure can increase to spray the tin ball to the bonding pad, and the tin ball can be effectively prevented from being oxidized in the nozzle under the protection of nitrogen.
At the welding station, the product is jacked up by the jacking positioning adjusting mechanism 43 and is fixed at a set welding position and in a welding state by the positioning column and the upper limit component; the position of the bonding pad is obtained through the visual positioning assembly 34, the height of the bonding pad is measured through the laser range finder 35, the distance between a welding nozzle and the bonding pad is ensured to be the same every time, and the uniformity and the stability of welding quality are guaranteed; the solder ball feeding mechanism automatically feeds the solder balls into the solder joint 33, the solder balls are melted by laser, the solder balls are ejected by high-pressure nitrogen to complete welding, and then the welded product is photographed by the visual positioning assembly 34 to obtain a welding image bound with the product and is uploaded to the system.
In this embodiment, one welding unit 3 is used with two welding in and out transfer lines 4, and is provided with two welding units 3, reduces the beat of welding process.
This embodiment is still including the detection transfer chain 9 that is located the terminal top of main assembly line 1, and AI visual detection unit 7 sets up in detecting transfer chain 9 top, grabs the product from main assembly line 1 through carrying fixture 6 and detects on the transfer chain 9, then takes out the welded cover plate on the product and places on apron backward flow transfer chain 5. The detection conveying line 9 is provided with a jacking positioning mechanism 91 corresponding to the cover plate taking-out station and the AI detection station. The cover plate backflow conveying line 5 is parallel to the main assembly line 1 and is arranged above the main assembly line 1, one end of the cover plate backflow conveying line 5 extends to the input end of the main assembly line 1, so that a worker or a mechanical hand can assemble the welding cover plate and a carrier without the welding cover plate, and then the welding cover plate flows into the main assembly line 1. A code scanner is further arranged on the detection conveying line 9 and located at the upstream of the AI visual detection unit 7, and is used for scanning the two-dimensional codes on the products, so that AI detection pictures acquired by the AI visual detection unit 7 are bound with the products and uploaded to the system.
The carrying and clamping mechanism 6 includes a fourth motor 61, a fifth support plate 62 driven by the fourth motor 61 to perform horizontal linear motion, a fifth motor 63 fixed to the fifth support plate 62, a sixth support plate 64 driven by the fifth motor 63 to perform vertical motion, a thirteenth air cylinder 65 and a fourteenth air cylinder 66 fixed to the sixth support plate 64, a gripper 67 driven by the thirteenth air cylinder 65 to perform clamping or opening motion, and a suction nozzle 68 driven by the fourteenth air cylinder 66 to perform vertical motion. The clamping jaws 67 are used for holding the carrier product and the suction nozzles 68 are used for sucking away the welding cover plate.
The AI visual detection unit 7 includes a first camera 71 and a second camera 72 which are arranged at an angle, and an upper computer which is electrically connected with the first camera 71 and the second camera 72 and is installed with welding spot AI detection system software. In this embodiment, the AI visual inspection unit 7 is an identification model established based on artificial intelligence deep learning, trains the identification model by acquiring images of qualified products and images of unqualified products, and then identifies and judges welding images acquired by the first camera 71 and the second camera 72 by using the trained identification model.
The waste discharging mechanism 8 includes a fifteenth cylinder 81 located on one side of the detection conveying line 9, a third material pushing plate 82 driven by the fifteenth cylinder 81 to move perpendicularly to the detection conveying line 9, and a defective product discharging flow channel 83 located on the other side of the detection conveying line 9 and receiving the defective product pushed out by the third material pushing plate 82.
The working principle of the full-automatic loudspeaker welding detection production line 100 based on the molten tin welding and the AI visual detection in the embodiment is as follows: products with welded cover plates are placed in the carrier and flow into the main assembly line 1; then the carrier is controlled by the two first material blocking mechanisms 12 to be output to the input end of the first welding material feeding line 21, the carrier is pushed to the first welding material feeding line 21 through the first steering material pushing mechanism 11 and then is conveyed to the position above the tail end first steering conveying mechanism 23, the first steering conveying mechanism 23 rises to transfer the carrier to the second welding material feeding line 22, then the carrier is conveyed to the positions, corresponding to the two welding units 3, of the welding in-out conveying line 4 through the second welding material feeding line 22, the carrier is transferred to the welding in-out conveying line 4 from the second welding material feeding line 22 through the second steering conveying mechanism 41, and then the carrier is jacked and positioned through the first jacking positioning mechanism 42; then the workpiece enters a welding station, is jacked up by the jacking positioning adjusting mechanism 43 to be separated from the surface of the conveying line, and is matched with the upper limiting component 437 to adjust the angle of the carrier and fix the carrier; under the assistance of a laser range finder and a visual positioning assembly, a product welding position is obtained, a three-axis transfer mechanism 31 drives a tin melting welding head 33 to move to the upper part of the product, tin ball spraying welding is carried out on the product, and after the welding is finished; the carrier moves to the tail end through the welding in-out conveying line 4, is pushed back to the main assembly line 1 through the second steering pushing mechanism 44 and is conveyed to the tail end of the main assembly line 1; through carrying fixture 6 with the whole centre gripping of carrier to detecting transfer chain 9 on, and with its jack-up location through jacking positioning mechanism 91, and simultaneously, take off the welding cover plate on the product through carrying fixture 6, place and carry out backward flow cyclic utilization on apron backward flow transfer chain 5, take off the apron back, the carrier is removed to the detection station, detect welding quality through AI vision detecting element 7, and show the testing result and count on the cooperation control panel, qualified product can continue to directly export through detecting transfer chain 9, unqualified product then can be rejected from detecting transfer chain 9 by waste discharge mechanism 8.
The full-automatic welding detection production line 100 for the loudspeaker based on the molten tin soldering and the AI visual detection realizes full-automatic feeding, conveying, tin ball spraying welding, AI visual automatic detection, automatic waste discharge and automatic output of the Bluetooth headset loudspeaker, greatly improves the welding detection efficiency, and improves the reliability of the welding quality and the detection result. Specifically, the welding purpose is achieved by adopting laser to melt the solder balls and spraying the solder balls to the positions of the bonding pads, and meanwhile, the novel deep analysis equipment matched with AI (artificial intelligence) inspection welding spots has the advantages of non-contact, no soldering flux, small heat, deep analysis, accuracy, controllability and the like; compared with the common welding method, the method has the characteristics of impact deformation and instantaneous solidification, has the advantages of high welding speed, small requirement on space and simple and controllable operation, and is particularly suitable for the manufacturing process of high-precision electronic products such as earphones; the AI identification test is adopted, and the test system formed based on the technologies of artificial intelligence learning, an intelligent system, image identification, natural language processing and the like has the advantages of high precision, accuracy, stability, high efficiency and the like.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a full-automatic welding of speaker detects production line based on molten tin welding and AI visual detection which characterized in that: which comprises
A main assembly line;
the welding and feeding conveying line is integrally distributed in an L shape and is vertically butted with the main assembly line;
a plurality of welding units are distributed along the main assembly line;
one end of the welding in-out conveying line is vertically butted with the welding feeding conveying line, the other end of the welding in-out conveying line is vertically butted with the main assembly line, and meanwhile, the welding unit flows through the welding in-out conveying line;
the cover plate backflow conveying line is arranged above the main assembly line in parallel;
the conveying and clamping mechanism is arranged above the tail end of the main assembly line and is used for taking down a welding cover plate on a product and placing the welding cover plate on the cover plate backflow conveying line;
the AI visual detection unit is used for carrying out welding detection on the product based on the deep learning model; and
a waste discharge mechanism.
2. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: a first steering pushing mechanism is arranged at the joint of the main assembly line and the welding and feeding conveying line, and comprises a first air cylinder positioned above the main assembly line and a first material pushing plate driven by the first air cylinder to move in parallel to the conveying direction of the welding and feeding conveying line;
at least one pair of first stop mechanisms is arranged on the main assembly line and positioned at the upstream of the first steering pushing mechanism; the first material blocking mechanism is arranged along the conveying direction of the main assembly line; the first material blocking mechanism comprises a second cylinder and a first material blocking plate driven by the second cylinder to move up and down.
3. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: welding pay-off transfer chain include with the perpendicular first welding pay-off line that docks of mainstream waterline, with the terminal perpendicular butt joint of first welding pay-off line and with the parallel second welding pay-off line of mainstream waterline, setting are in first welding pay-off line with the first conveying mechanism that turns to of second welding pay-off line intersection, edge at least a pair of second stock stop that first welding pay-off line set up, edge second welding pay-off line set up and with a plurality of third stock stops that welding business turn over transfer chain position corresponds.
4. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 3, characterized in that: the second material blocking mechanism comprises a third cylinder and a second material blocking plate driven by the third cylinder to move up and down; the second material blocking mechanism is arranged below the first welding material feeding line;
the third material blocking mechanism comprises a fourth cylinder, a third material blocking plate driven by the fourth cylinder to move up and down, and a first sensor fixed on the third material blocking plate and used for detecting whether a product is in place or not; and the third material blocking mechanism is arranged below the second welding and feeding line.
5. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 3, characterized in that: first conveying mechanism turns to includes first support, fixes the fifth cylinder of first support upper surface, receives the first backup pad, the rotatable setting that the drive of fifth cylinder carried out the up-and-down motion are in the first backup pad front and back both ends first support roller bearing, with first backup pad fixed connection just is located the second backup pad of fifth cylinder below, rotatable setting are in second support roller bearing in the second backup pad, fixing just drive in the second backup pad the rotatory first motor of second support roller bearing, be the return circuit around establishing first support roller bearing with first conveyer belt that turns to on the second support roller bearing, first conveyer belt that turns to is two be formed with the transport face on the first support roller bearing.
6. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: the input end of the welding in-out conveying line is provided with a second steering conveying mechanism which transfers products from the second welding feeding line to the welding in-out conveying line;
the second steering conveying mechanism comprises a support, a first rotating shaft, a plurality of first synchronous pulleys, a plurality of second synchronous pulleys, a second steering conveying belt, a second motor and a sixth air cylinder, wherein one side of the support is rotatably erected on a hinge seat, the first rotating shaft is rotatably erected at one end of the support and is coaxially arranged with a support rotating shaft, the plurality of first synchronous pulleys are arranged on the first rotating shaft, the plurality of second synchronous pulleys are arranged at the other end of the support, the second steering conveying belt is wound on the first synchronous pulleys and the second synchronous pulleys and forms the same conveying direction with the welding inlet and outlet conveying line, the second motor drives the first rotating shaft to rotate, and the sixth air cylinder drives the support to rotate around the axis of the hinge seat;
the support is perpendicular to the second welding feeding line is distributed, and the second welding feeding line is provided with an avoiding notch for allowing the support to sink to the position below the second welding feeding line.
7. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: a first jacking positioning mechanism and a jacking positioning adjusting mechanism for jacking positioning and angle adjustment of the product at the welding station are further arranged below the welding in-out conveying line along the conveying direction;
the first jacking positioning mechanism comprises a seventh cylinder, an eighth cylinder, a first jacking plate driven by the seventh cylinder to move up and down, and a second sensor driven by the eighth cylinder to move up and down and used for detecting whether a product is in place or not; a code scanner is arranged above the first jacking positioning mechanism and used for scanning a two-dimensional code on a product and binding a subsequently welded picture with the product;
the jacking positioning adjusting mechanism comprises a ninth cylinder, a tenth cylinder, a third supporting plate driven by the ninth cylinder to move up and down, a second rotating shaft rotatably erected on the third supporting plate, a second jacking plate fixed on the second rotating shaft, a third motor fixed on the third supporting plate and driving the second rotating shaft to rotate, and an upper limit position assembly located on two sides of the second jacking plate and matched with the second jacking plate to fix a product. The second lifting plate is provided with a second positioning column.
8. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: the output end of the welding in-out conveying line is also provided with a second steering pushing mechanism for pushing the product from the welding in-out conveying line to the main production line; the second steering pushing mechanism comprises an eleventh air cylinder, a fourth supporting plate driven by the eleventh air cylinder to move parallel to the welding in-out conveying line, a twelfth air cylinder fixed on the fourth supporting plate, and a second pushing plate driven by the twelfth air cylinder to move up and down.
9. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: the welding unit comprises a three-axis transfer mechanism, a seventh supporting plate driven by the three-axis transfer mechanism to move in space, a tin melting welding head fixed on the seventh supporting plate, a tin ball feeding mechanism communicated with a tin ball feeding channel of the tin melting welding head, a visual positioning assembly and a laser range finder arranged on the seventh supporting plate, and a detection camera for detecting whether tin is hung on a nozzle in the tin melting welding head.
10. The full-automatic welding detection production line of the loudspeaker based on the molten tin welding and AI visual inspection as claimed in claim 1, wherein: the automatic welding device is characterized by further comprising a detection conveying line positioned above the tail end of the main assembly line, wherein the AI visual detection unit is arranged above the detection conveying line, a product is grabbed onto the detection conveying line from the main assembly line through the carrying and clamping mechanism, and then a welding cover plate on the product is taken out and placed onto the cover plate backflow conveying line; the detection conveying line is provided with a jacking positioning mechanism corresponding to the cover plate taking-out station and the AI detection station; the cover plate backflow conveying line is arranged in parallel to the main assembly line and is positioned above the main assembly line, and one end of the cover plate backflow conveying line extends to the input end of the main assembly line;
the AI visual detection unit comprises a first camera and a second camera which are arranged at an angle, and an upper computer which is electrically connected with the first camera and the second camera and is provided with welding spot AI detection system software;
the carrying and clamping mechanism comprises a fourth motor, a fifth supporting plate driven by the fourth motor to perform horizontal linear motion, a fifth motor fixed on the fifth supporting plate, a sixth supporting plate driven by the fifth motor to perform vertical motion, a thirteenth air cylinder and a fourteenth air cylinder fixed on the sixth supporting plate, a clamping jaw driven by the thirteenth air cylinder to perform clamping or opening motion, and a suction nozzle driven by the fourteenth air cylinder to perform vertical motion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110591323.2A CN113325002A (en) | 2021-05-28 | 2021-05-28 | Full-automatic welding detection production line for loudspeaker based on molten tin soldering and AI visual detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591323.2A CN113325002A (en) | 2021-05-28 | 2021-05-28 | Full-automatic welding detection production line for loudspeaker based on molten tin soldering and AI visual detection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114125646A (en) * | 2021-12-16 | 2022-03-01 | 东莞市纳声电子设备科技有限公司 | Automatic production equipment and production method for TWS earphone loudspeaker |
| CN114632994A (en) * | 2022-03-24 | 2022-06-17 | 佛山智链数字科技有限公司 | Automatic welding production line for antenna |
| CN114749745A (en) * | 2022-04-28 | 2022-07-15 | 深圳市紫宸激光设备有限公司 | Automatic laser soldering method, device and system |
| CN114838866A (en) * | 2022-03-25 | 2022-08-02 | 迈兴(厦门)电子有限公司 | Appearance AI visual detection device of automobile turbocharging sensor |
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2021
- 2021-05-28 CN CN202110591323.2A patent/CN113325002A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114125646A (en) * | 2021-12-16 | 2022-03-01 | 东莞市纳声电子设备科技有限公司 | Automatic production equipment and production method for TWS earphone loudspeaker |
| CN114632994A (en) * | 2022-03-24 | 2022-06-17 | 佛山智链数字科技有限公司 | Automatic welding production line for antenna |
| CN114838866A (en) * | 2022-03-25 | 2022-08-02 | 迈兴(厦门)电子有限公司 | Appearance AI visual detection device of automobile turbocharging sensor |
| CN114838866B (en) * | 2022-03-25 | 2023-10-20 | 迈兴(厦门)电子有限公司 | Appearance AI visual detection device of automobile turbocharging sensor |
| CN114749745A (en) * | 2022-04-28 | 2022-07-15 | 深圳市紫宸激光设备有限公司 | Automatic laser soldering method, device and system |
| CN114749745B (en) * | 2022-04-28 | 2023-10-27 | 深圳市紫宸激光设备有限公司 | Automatic laser soldering method, device and system |
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