CN115106674B - Welding seam quality detection device for laser welding operation - Google Patents
Welding seam quality detection device for laser welding operation Download PDFInfo
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- CN115106674B CN115106674B CN202211024255.2A CN202211024255A CN115106674B CN 115106674 B CN115106674 B CN 115106674B CN 202211024255 A CN202211024255 A CN 202211024255A CN 115106674 B CN115106674 B CN 115106674B
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- fixing block
- electric telescopic
- fixedly connected
- telescopic rod
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
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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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a welding seam quality detection device for laser welding operation, which comprises a support frame, wherein a support arm is arranged on one side of the support frame, a welding head is in threaded connection with the lower end of the support arm, a first fixing block is arranged on the support arm, a dust removal assembly is arranged on the left side of the first fixing block, the dust removal assembly comprises a sliding chute, a sliding plate is connected in the sliding chute in a sliding manner, a suction pump is arranged on the left side of the sliding plate, the output end of the suction pump is fixedly connected with a second hose, the other end of the second hose is fixedly connected with a dust suction port, a signal processor controls an electric telescopic rod I to do telescopic motion to drive the sliding plate to slide in the sliding chute, the first fixing shaft is driven to slide left and right in the sliding process of the sliding plate, the first fixing shaft capable of sliding left and right always drives the dust suction port to slide left and right, so that the dust suction port can perform reciprocating dust collection on a welding seam, and the problem that the amount of dust is reduced and the occurrence frequency of an air hole is solved.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a weld joint quality detection device for laser welding operation.
Background
The laser welding is an efficient precise welding method which uses a laser beam with high energy density as a heat source, and can be realized by adopting a continuous or pulse laser beam.
During welding, plates needing to be welded are sequentially conveyed to the position below a laser welding head by a conveying belt, the welding head can conveniently perform sequential linear welding on the plates, and in the process that the welding plates are waiting to be welded on the conveying belt, dust can fall into gaps needing to be welded, the dust at the welding gaps can cause air holes during welding, the air holes in the welding seams can weaken the effective working sections of the welding seams and reduce the mechanical performance of the welding seams.
Disclosure of Invention
The present invention is directed to a weld quality detection device for laser welding operation, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a welding seam quality detection device for laser welding operation, includes the support frame, the support arm is installed to one side of support frame, support arm lower extreme threaded connection has the soldered connection, install fixed block one on the support arm, the left side of fixed block one is provided with the dust removal subassembly, the dust removal subassembly includes the spout, the spout is seted up in fixed block one left side bottom, the inside sliding connection of spout has the sliding plate, the aspirator pump is installed in the sliding plate left side, the output fixedly connected with hose two of aspirator pump, the other end fixedly connected with dust absorption mouth of hose two, fixed axle one is installed to the lower extreme of sliding plate, the bottom and the dust absorption mouth fixed connection of fixed axle one.
The invention further discloses that a heating assembly is mounted on the first fixing block, and the heating assembly comprises: the blowing pump is installed above the first fixing block, the first output end of the blowing pump is fixedly connected with a first hose, the other end of the first hose is fixedly connected with an air outlet, the outer surface of the air outlet is fixedly connected with a second fixing block, and the other end of the second fixing block is fixedly connected with the welding head.
The invention further discloses that a quality inspection assembly is further mounted on the first fixing block, and the quality inspection assembly comprises: fixed axle two, two fixed mounting of fixed axle are on the right side of fixed block one below, the casing is installed to the lower extreme of fixed axle two, the internally mounted of casing has fixed block three, the bottom of fixed block three is run through in the casing, infra-red transmitter and infrared receiver are installed to the bottom of fixed block three, install signal processor on the fixed block three, signal processor and infra-red transmitter, infrared receiver signal connection.
The quality inspection assembly further comprises a circular groove and a triangular groove, wherein the circular groove and the triangular groove are formed in the circular groove and penetrate through the third fixing block, the fifth fixing block is arranged on the upper surface of the circular groove, the third electric telescopic rod is arranged on the lower surface of the fifth fixing block, a circular seal is arranged at the other end of the third electric telescopic rod and is connected inside the circular groove in a sliding mode, the fourth fixing block is arranged on the upper surface of the triangular groove, the fourth electric telescopic rod is arranged at the center of the lower surface of the fourth fixing block, the third triangular seal is arranged at the other end of the fourth electric telescopic rod, and the third electric telescopic rod and the fourth electric telescopic rod are in signal connection with the signal processor.
The invention further discloses that the quality inspection assembly further comprises an arc-shaped seal, the arc-shaped seal is connected to the outer surface of a third fixing block in a sliding mode, the lower surface of the arc-shaped seal penetrates through the shell, at least one group of second electric telescopic rods is mounted on the third fixing block, and the other ends of the at least one group of second electric telescopic rods are fixedly connected with the arc-shaped seal.
The dust removal assembly further comprises a first electric telescopic rod, the first electric telescopic rod is installed on the right side of the inner wall of the sliding groove, the other end of the first electric telescopic rod is fixedly connected with the right wall of the sliding plate, and the first electric telescopic rod is in signal connection with the signal processor.
The invention further discloses that a dust removal strength control system is arranged in the signal processor, the dust removal strength control system comprises a detection module, the detection module comprises an information statistics module, a quantity calculation module and a timing module, and the information statistics module is in signal connection with the infrared transmitter and the signal processor;
the dust removal force control system further comprises a control execution module, and the control execution module is in signal connection with the air suction pump.
The invention further discloses that the dust removal strength control system specifically operates and comprises the following steps: the method comprises the following steps that firstly, a dust removal strength control system is started simultaneously along with a welding head, and the dust removal strength control system detects the welding condition of a welding seam in real time after the welding head is welded; secondly, the timing module is matched with the information counting module, a light source emitted by the infrared emitter within a certain time and a light source image received by the infrared receiver counted by the signal processor are counted, and the light source image is transmitted to the quantity calculating module; thirdly, the quantity calculation module calculates the data collected by the information statistics module to obtain an area ratio; and fourthly, controlling the rotating speed of the air suction pump by the control execution module according to the area ratio to realize the conversion of the suction force.
The invention further discloses a method for calculating the specific calculated area ratio of the dust removal strength control system, which comprises the following steps:
in the same time period set by the timing module:
wherein the area ratio of the air holes is set as S; setting the total area of the air hole images in the light source imaging received by the infrared receiver counted by the signal processor as Y; setting the initial starting rotating speed of the air suction pump as P, and when the S value is larger than the range of the preset area ratio, the rotating speed of the air suction pump is unchanged; and if the S value is smaller than the range of the preset area ratio, controlling the execution module to increase the rotating speed of the air suction pump to be 2P.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the infrared transmitter, the infrared receiver and the signal processor are adopted, before welding is started, the shapes of the air holes and the undercut are transmitted into the signal processor through the master control box, and the signal processor images according to information fed back by the infrared receiver, judges the defect type of the position and makes corresponding remedial measures for the defect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom view of the fixing block of the present invention;
FIG. 3 is an enlarged schematic view of zone A of the present invention;
FIG. 4 is a schematic disassembled view of the internal structure of the shell of the present invention;
in the figure: 1. a support frame; 2. a signal processor; 3. a support arm; 4. welding a head; 5. a first fixed block; 6. an air blower; 7. a first hose; 8. an air outlet; 9. a second fixing block; 10. a sliding plate; 11. a getter pump; 12. a second hose; 13. a dust suction port; 14. a first fixed shaft; 15. a first electric telescopic rod; 16. a chute; 17. a second fixed shaft; 19. a housing; 20. a third fixed block; 21. arc printing; 22. a second electric telescopic rod; 23. a bump; 24. a third electric telescopic rod; 25. a fourth electric telescopic rod; 26. a fourth fixed block; 27. a fifth fixed block; 28. a circular groove; 29. a triangular groove; 30. carrying out triangular printing; 31. circular printing; 32. an infrared emitter; 33. an infrared receiver; 34. an elliptical block; 35. and (6) square blocks.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a welding seam quality detection device for laser welding operation, including support frame 1, support arm 3 is installed to one side of support frame 1 top, support arm 3 is including telescopic link one, telescopic link two, a telescopic link bearing is connected in one side of support frame 1, telescopic link two is rotated for universal joint with the other end of telescopic link one and is connected, telescopic link one, telescopic link two is extending structure, the terminal threaded connection of telescopic link two has soldered connection 4, fixed mounting has fixed block one 5 on the output of telescopic link two, fixed block one 5 is with the axle center with the center pin of telescopic link two.
Referring to fig. 3, a sliding groove 16 is formed in the left side below the first fixing block 5, a sliding plate 10 is slidably connected to the inner wall of the sliding groove 16, an air suction pump 11 is fixedly mounted on the left side of the sliding plate 10, an output end of the air suction pump 11 is connected with a second hose 12, the other end of the second hose 12 is fixedly connected with a dust suction port 13, a first fixing shaft 14 is fixedly connected to the left side below the first fixing block 5, the lower end of the first fixing shaft 14 is clamped with the dust suction port 13 and used for fixing the dust suction port 13 and guiding the dust suction port 13, a first electric telescopic rod 15 is mounted on the right side of the inner wall of the sliding groove 16, the first electric telescopic rod 15 is fixedly connected to the right side of the inner wall of the sliding groove 16, and an output end of the first electric telescopic rod 15 is fixedly connected to the right side wall of the sliding plate 10.
Referring to fig. 1, an air blowing pump 6 is fixedly mounted above a first fixing block 5, an output end of the air blowing pump 6 is fixedly connected with a first hose 7, the first hose 7 penetrates through the first fixing block 5, a lower end of the first hose 7 is fixedly connected with an air outlet 8, a second fixing block 9 is fixedly mounted on the air outlet 8, the other end of the second fixing block 9 is fixedly connected with a welding head 4, and the second fixing block 9 plays a role in fixing and guiding the air outlet 8.
Referring to fig. 3-4, a second fixing shaft 17 is fixedly connected to the right side below the first fixing block 5, a housing 19 is fixedly connected to the lower portion of the second fixing shaft 17, a third fixing block 20 is fixedly connected to the inner upper surface of the housing 19, the third fixing block 20 includes a square block 35 and an oval block 34, the lower end of the square block 35 is fixedly connected to the upper end of the oval block 34, the upper end of the square block 35 is fixedly connected to the inner upper surface of the housing 19, an arc-shaped stamp 21 is slidably connected to the outer wall of the oval block 34, the arc-shaped stamp 21 is of a hollow structure, at least one set of protrusions 23 is arranged on the inner wall of the arc-shaped stamp 21, at least one set of grooves is formed in the outer wall of the oval block 34, the number of the grooves is the same as that of the protrusions 23, the protrusions 23 slide on the inner wall of the grooves, the second electric telescopic rods 22 are respectively mounted on the inner wall of the grooves, the output ends of the second electric telescopic rods 22 are fixedly connected to the protrusions 23, and the second electric telescopic rods 22 are used for controlling and pushing the arc-shaped stamp 21 to slide.
A circular groove 28 and a triangular groove 29 are formed in the oval block 34, the circular groove 28 and the triangular groove 29 penetrate through the oval block 34, a fifth fixing block 27 is fixedly mounted on the circular groove 28, a third electric telescopic rod 24 is mounted at the bottom of the fifth fixing block 27, the third electric telescopic rod 24 is fixedly connected with the bottom of the fifth fixing block 27, a circular stamp 31 is fixedly connected with the output end of the third electric telescopic rod 24, the circular stamp 31 is connected to the inner wall of the circular groove 28 in a sliding mode, and a fourth fixing block 26 is fixedly mounted on the triangular groove 29; four 25 electric telescopic handle are installed to four 26 bottoms of fixed block, four 25 electric telescopic handle and four 26 bottom fixed connection of fixed block, four 25 electric telescopic handle's output fixedly connected with triangular seal 30, triangular seal 30 sliding connection in the inner wall of triangular groove 29.
Fixedly connected with signal processor 2 on oval piece 34, infrared emitter 32, infrared receiver 33, two 22 electric telescopic handle, three 24 electric telescopic handle, four 25 electric telescopic handle, aspirator pump 11, one 15 electric telescopic handle, blow pump 6 all with signal processor 2 signal connection, infrared emitter 32, infrared receiver 33, two 22 electric telescopic handle, three 24 electric telescopic handle, four 25 electric telescopic handle, aspirator pump 11, one 15 electric telescopic handle, the pump 6 of blowing, signal processor 2 all is external to have the power.
The central axes of the dust suction port 13, the air outlet 8, the welding head 4 and the shell 19 are on the same plane from left to right.
The signal processor 2 is internally provided with a dust removal strength control system which comprises a detection module, a control execution module, an information statistics module, a quantity calculation module and a timing module, wherein the control execution module is in signal connection with the air suction pump 11.
In the same time period set by the timing module:
wherein, the area ratio of the air holes is set as S, the total area of the light source emitted by the infrared emitter 32 is set as X, the total area of the air hole image in the light source imaging received by the infrared receiver 33 counted by the signal processor 2 is set as Y, the starting rotating speed of the air suction pump 11 is set as P, when the S value is larger than the range of the preset area ratio, the rotating speed of the air suction pump 11 is not changed, and if the S value is smaller than the range of the preset area ratio, the control execution module increases the air suctionThe speed of the pump 11 is 2P.
In the same time period set by the timing module:
wherein, the length ratio of the undercut is set as D, the total length of the light source emitted by the infrared emitter 32 is set as C, the total length of the undercut image in the light source image received by the infrared receiver 33 counted by the signal processor 2 is set as A, and when the total length is D, the undercut image is processed
The length ratio of the blowing pump 6 is greater than the preset undercut length ratio, and when the length ratio is greater than the preset undercut length ratio, the blowing pump is unchanged
When the length ratio of the undercut is smaller than the preset length ratio of the undercut, the signal processor 2 controls the blowing pump 6 to be opened.
The working principle is as follows: a master control box is arranged on the support frame 1 and is in signal connection with the signal processor 2, a conveyor belt is arranged below the welding head 4, a welding route, the welding time length, the pause time length and the depth and the width of a welding seam to be welded are arranged on the master control box according to the requirements of a user before the welding work is started, the welding head 4 is started after the arrangement, the suction pump 11 starts to operate simultaneously when the welding head 4 starts to weld, the conveyor belt conveys plates to be welded from left to right, therefore, the plates to be welded firstly pass through the dust collection port 13 and then pass through the welding head 4, and when the plates to be welded pass through the dust collection port 13, the suction pump 11 sucks air inwards through the dust suction port 13, in the process of sucking air inwards, as the dust suction port 13 is positioned right above a welding seam of a plate to be welded, dust in the welding seam is sucked into the second hose 12 by the suction force at the dust suction port 13, so that the dust in the welding seam is removed, the generation of air holes in the welding process is reduced, meanwhile, the dust in the welding seam is removed by adopting the air suction method of the suction pump 11, the effect that the dust flies up to pollute the surrounding welding seam is reduced, as can be seen from figure 1, the distance between the dust suction port 13 and the welding head 4 is very close, the welding process while dust removal is realized, the waiting time of the welding seam after dust removal is reduced, and the dust is prevented from falling into the welding seam again.
The blowing pump 6 is in a normally closed state, but when the temperature of a working area is lower, the temperature of a plate to be welded is also low, if the temperature of the plate to be welded is too low, molten metal liquid enters a welding seam and suddenly encounters cold to cause an undercut phenomenon, before welding starts, the shapes of the air holes and the undercut are transmitted into the signal processor 2 through the master control box, so that the signal processor 2 makes corresponding response when receiving corresponding similar graphs, the area ratio of the air holes and the length ratio of the undercut are preset for the signal processor 2, the ratio of the area ratio of the air holes to the length ratio of the undercut can be set to be 98-90% according to the requirements of plates with different purposes, the welding seam welded by the welding head 4 passes through the third fixing block 20, the infrared emitter 32 on the third fixing block 20 sends infrared signals in real time, the infrared receiver 33 transmits the received infrared signals to the signal processor 2, the signal processor 2 generates an image according to the duration of the signal echo received by the infrared receiver 33, and judges whether an air hole or an undercut condition exists according to the generated image, if the signal processor 2 detects that the air hole exists and the area ratio of the air hole is higher than the preset area ratio of the air hole, the signal processor 2 controls to open the electric telescopic rod one 15, the opened electric telescopic rod one 15 performs reciprocating telescopic motion, when the electric telescopic rod one 15 performs telescopic motion, the sliding plate 10 is driven to slide in the sliding groove 16, the fixing shaft one 14 is driven to slide left and right in the sliding process of the sliding plate 10, the fixing shaft one 14 which slides left and right always drives the dust suction port 13 to slide left and right, so that the dust suction port 13 performs reciprocating dust suction on a welding seam, the dust suction duration is increased, the dust quantity is reduced, and the area ratio of the air hole is increased.
When the quantity calculation module calculates that the S value is larger than the range of the preset area ratio, the rotating speed of the air suction pump 11 is unchanged; if the S value is smaller than the range of the preset area ratio, the situation that dust in the welding working environment is large is indicated, the execution module is controlled to send out an instruction, the rotating speed of the suction pump 11 is controlled to be increased, the suction force of the suction pump 11 is increased, and the dust in the welding seam to be welded is cleaned powerfully.
If the signal processor 2 detects that the undercut exists and the frequency of the undercut appearing is higher than the preset undercut length ratio, the signal processor 2 controls the blowing pump 6 to be turned on, a heating element is installed inside the first hose 7 and electrically connected with the blowing pump 6, the heating element is turned on simultaneously when the blowing pump 6 is turned on, the blowing pump 6 blows air to the air outlet 8, the heating element inside the first hose 7 gradually heats up when the air passes through the first hose 7, the air outlet 8 blows hot air to the welding line, and the air outlet 8 is located on the left side of the welding head 4, so that the preheating effect is achieved, the phenomenon that the welding liquid metal is too cold to be distributed and the undercut phenomenon caused by rapid solidification of the two sides of the welding line is reduced.
Meanwhile, when the signal processor 2 detects the air hole phenomenon, the electric telescopic rod two 22 and the electric telescopic rod three 24 are opened at the same time, when the opened electric telescopic rod two 22 is opened, the arc-shaped stamp 21 is pushed downwards to enable the arc-shaped stamp 21 to stamp the shape of the arc-shaped stamp 21 on the periphery of the detected air hole, and meanwhile, the opened electric telescopic rod three 24 pushes the circular stamp 31 downwards to enable the circular stamp 31 to stamp the pattern of the circular stamp 31 in the arc-shaped stamp 21 printed at the same time; when the signal processor 2 detects that the undercut phenomenon exists, the electric telescopic rod two 22 and the electric telescopic rod four 25 are opened simultaneously, the opened electric telescopic rod two 22 pushes the arc-shaped seal 21 downwards to enable the arc-shaped seal 21 to print the shape of the arc-shaped seal 21 on the detected undercut, meanwhile, the opened electric telescopic rod four 25 pushes the triangular seal 30 in the triangular groove 29 downwards, the triangular seal 30 enables the pattern on the triangular seal 30 to be printed in the arc-shaped seal 21 printed simultaneously, real-time detection is achieved, detection results are classified and labeled, the welding plates with different defects can be placed and processed conveniently, the defect regions are labeled simultaneously, and therefore workers in subsequent rechecking can conveniently find the welding plates and the detection time is shortened.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions may be made in some technical features thereof, without departing from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A weld quality detection apparatus for a laser welding operation, comprising:
the supporting frame (1) is used for stably supporting all parts;
the supporting arm (3) is arranged on the supporting frame (1);
the first fixing block (5) is mounted on the supporting arm (3), the first fixing block (5) and the welding head (4) are the same central shaft, and a quality inspection assembly is arranged on the right side of the first fixing block (5);
the method is characterized in that: the quality inspection assembly comprises:
the second fixed shaft (17) is fixedly arranged on the right side below the first fixed block (5);
a shell (19) which is arranged at the lower end of the second fixed shaft (17);
the third fixing block (20) is installed inside the shell (19), and the bottom of the third fixing block (20) penetrates through the shell (19);
the infrared transmitter (32) and the infrared receiver (33) are both arranged at the bottom of the third fixing block (20);
the signal processor (2) is installed on the third fixing block (20), and the signal processor (2) is in signal connection with the infrared emitter (32) and the infrared receiver (33);
still install dust removal subassembly on fixed block (5), dust removal subassembly includes:
the sliding chute (16) is arranged at the bottom of the left side of the first fixing block (5);
a sliding plate (10) mounted inside the chute (16);
a suction pump (11) mounted on the left side of the sliding plate (10);
the second hose (12) is fixedly connected with the output end of the air suction pump (11);
the dust collection port (13) is fixedly connected with the other end of the second hose (12);
the first fixed shaft (14) is arranged at the lower end of the sliding plate (10), and the bottom of the first fixed shaft (14) is fixedly connected with the dust suction port (13);
the first electric telescopic rod (15) is mounted on the right side of the inner wall of the sliding groove (16), the other end of the first electric telescopic rod (15) is fixedly connected with the right wall of the sliding plate (10), and the first electric telescopic rod (15) is in signal connection with the signal processor (2);
signal processor (2) internally mounted has dust removal dynamics control system, dust removal dynamics control system includes:
the detection module comprises an information statistic module, a quantity calculation module and a timing module, and the information statistic module is in signal connection with the infrared transmitter (32) and the signal processor (2);
the control execution module is in signal connection with the getter pump (11);
the specific operation of the dust removal force control system comprises the following steps:
the method comprises the following steps that firstly, a dust removal strength control system is started simultaneously along with a welding head (4), and the dust removal strength control system detects the welding condition of a welding seam in real time after the welding head (4) is welded;
secondly, the timing module is matched with the information counting module, a light source emitted by the infrared emitter (32) within a certain time length and light source images received by the infrared receiver (33) counted by the signal processor (2) are counted, and the light sources images are transmitted to the quantity calculating module;
thirdly, the quantity calculation module calculates the data collected by the information statistics module to obtain an area ratio;
fourthly, controlling the rotating speed of the air suction pump (11) by the control execution module according to the area ratio to realize the conversion of suction force;
the specific calculation method of the area ratio of the dust removal force control system is as follows:
in the same time period set by the timing module:
;
setting the area ratio of the air holes as S;
setting the total area of light sources emitted by the infrared emitter (32) as X;
setting the total area of the air hole image in the light source image received by the infrared receiver (33) counted by the signal processor (2) as Y;
setting the starting rotating speed of the air suction pump (11) to be P, and when the S value is larger than the range of the preset area ratio, keeping the rotating speed of the air suction pump (11) unchanged; and if the S value is smaller than the range of the preset area ratio, controlling the execution module to increase the rotating speed of the air suction pump (11) to be 2P.
2. The weld quality detection apparatus for a laser welding operation according to claim 1, wherein: the quality inspection assembly further comprises:
the circular groove (28) and the triangular groove (29) are both arranged and penetrate through the third fixing block (20);
a fifth fixing block (27) mounted on the upper surface of the circular groove (28);
the third electric telescopic rod (24) is arranged on the lower surface of the fifth fixing block (27);
the round stamp (31) is arranged at the other end of the electric telescopic rod III (24), and the round stamp (31) is connected inside the round groove (28) in a sliding manner;
a fourth fixing block (26) which is arranged on the upper surface of the triangular groove (29);
the electric telescopic rod IV (25) is arranged at the center of the lower surface of the fixing block IV (26);
the triangular stamp (30) is arranged at the other end of the electric telescopic rod IV (25);
and the electric telescopic rod III (24) and the electric telescopic rod IV (25) are in signal connection with the signal processor (2).
3. The weld quality detection apparatus for a laser welding operation according to claim 2, wherein: the quality inspection assembly further comprises:
the arc-shaped seal (21) is connected to the outer surface of the third fixing block (20) in a sliding mode, and the lower surface of the arc-shaped seal (21) penetrates through the shell (19);
and the at least one group of second electric telescopic rods (22) are arranged on the third fixing block (20), the other ends of the at least one group of second electric telescopic rods (22) are fixedly connected with the arc-shaped prints (21) and used for pushing the arc-shaped prints (21), and the at least one group of second electric telescopic rods (22) are in signal connection with the signal processor (2).
4. The weld quality detection apparatus for a laser welding operation according to claim 3, wherein: comprising a heating assembly, said heating assembly comprising:
the blowing pump (6) is arranged above the first fixing block (5);
the first hose (7) is fixedly connected with the output end of the air blowing pump (6);
the air outlet (8) is fixedly connected with the other end of the first hose (7);
and the second fixing block (9) is fixedly connected with the outer surface of the air outlet (8), and the other end of the second fixing block (9) is fixedly connected with the welding head (4) and used for fixing the air outlet (8) to be close to the welding head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024255.2A CN115106674B (en) | 2022-08-25 | 2022-08-25 | Welding seam quality detection device for laser welding operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024255.2A CN115106674B (en) | 2022-08-25 | 2022-08-25 | Welding seam quality detection device for laser welding operation |
Publications (2)
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| CN217167072U (en) * | 2021-12-24 | 2022-08-12 | 中国石油大学(华东) | Robot welding and real-time monitoring system based on line laser and binocular vision |
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| JP2002321073A (en) * | 2001-02-23 | 2002-11-05 | Nissan Motor Co Ltd | Device and method for monitoring quality of laser beam welded part |
| CN110315203A (en) * | 2019-07-03 | 2019-10-11 | 河南水利与环境职业学院 | A kind of laser soldering device with detection module |
| CN210755852U (en) * | 2019-10-28 | 2020-06-16 | 苏州凯莱博电子科技有限公司 | Laser welding machine for machining mobile phone parts |
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