CN108326422B - Automatic solar heat collection strip laser welding process - Google Patents
Automatic solar heat collection strip laser welding process Download PDFInfo
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- CN108326422B CN108326422B CN201810208842.4A CN201810208842A CN108326422B CN 108326422 B CN108326422 B CN 108326422B CN 201810208842 A CN201810208842 A CN 201810208842A CN 108326422 B CN108326422 B CN 108326422B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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- Optics & Photonics (AREA)
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Abstract
The invention relates to an automatic solar heat collecting strip laser welding process, which comprises the following steps of, a second step, by means of an automatic solar heat collecting strip laser welding device, wherein the device comprises a welding frame, a welding upper platform which is positioned on the welding frame and is used for conveying heat collecting strip components from left to right, a third welding center which is arranged on the welding upper platform, a pairing positioning device which is arranged on the welding upper platform and is positioned on the left side of the third welding center, and/or an output device which is arranged on the welding upper platform and is positioned on the right side of the third welding center; when the heat collecting strip components to be welded are input from the left inlet of the conveying welding frame, the heat collecting strip components are continuously conveyed to the right by rotating the first rotating shaft of the pairing positioning device, and meanwhile, the first rotating shaft of the first positioning clamping device of the pairing positioning device descends; the invention has reasonable design, compact structure and convenient use.
Description
Technical Field
The invention relates to an automatic solar heat collection strip laser welding process.
Background
At present, a flat-plate solar water heater widely adopts aluminum sheets and metal tubes as heat collecting plates, the traditional heat collecting plates are formed by clamping a metal tube between two layers of aluminum sheets, flattening the metal tube to ensure that copper and aluminum are tightly combined, and blowing and forming the pre-flattened metal tube by using high-pressure water or compressed air after surface coating. However, the traditional heat collecting plate only has two layers of pressure-bearing materials of an aluminum sheet and a metal pipe, the metal pipe is rolled and inflated, the bending part can be damaged to a certain extent, the pressure-bearing limit is lower, the heat collecting plate is suitable for places with lower water supply pressure, the rejection rate is high in the production process, and hidden danger exists. Some solar water heater enterprises put forward a new heat collecting plate structure, mainly in two forms, one is that an external aluminum or copper heat absorbing piece is firstly processed into an aluminum wing piece with a circular hole pipe, and then the aluminum wing piece is penetrated into a metal pipe for compounding; the other is to process the external aluminum or copper heat absorbing piece into a fin with a semicircular hole pipe, and then compound the fin with a metal pipe in a riveting, welding and other modes.
For example, the chinese patent application No. 97114292.0 discloses a method for producing a heat collecting plate core, which comprises processing an aluminum fin with a circular hole tube with an aluminum alloy, inserting a metal tube into the hole tube of the aluminum fin, and expanding the metal tube by mechanical expansion or hydraulic expansion to tightly bond the metal tube with the inner wall of the hole tube to form a metal heat absorbing tube. The heat collecting sheet with the structure has only two layers of pressure-bearing materials, the pressure-bearing capacity is limited, the external aluminum heating piece is integrally formed, the contact part of the fin and the circular hole pipe is easy to form stress concentration, the probability of breakage is increased, the penetrating metal pipe needs to be expanded to be tightly combined with the inner wall of the hole pipe, and the deformation of the metal pipe can be caused, so that the pressure-bearing capacity of the metal pipe can be influenced.
The Chinese patent application with the application number of 00117119.4 discloses a production method of a solar heat collecting plate bar, which comprises the steps of cold bending a metal belt to form fins with semicircular holes, and assembling and rolling the fins with a heat collecting tube. The heat collecting sheet with the structure has only one layer of pressure bearing material and limited pressure bearing capacity, and as the fins and the heat collecting tube are rolled by a rolling and combining machine, the heat collecting sheet and the fins are not tightly contacted with each other, and the heat transfer efficiency can be affected.
CN201020048924.6 is a heat collecting plate of pressure-bearing solar water heater, and has low production efficiency and cannot be mass produced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an automatic solar heat collection strip laser welding process in general; the technical problems to be solved in detail and the advantages to be achieved are described in detail below and in conjunction with the detailed description.
In order to solve the problems, the invention adopts the following technical scheme: the process comprises the following steps of, by means of an automatic solar heat collecting strip laser welding device, a second step, wherein the device comprises a welding frame, a welding upper platform which is positioned on the welding frame and is used for conveying a heat collecting strip component from left to right, a third welding center which is arranged on the welding upper platform, a pairing positioning device which is arranged on the welding upper platform and is positioned on the left side of the third welding center, and/or an output device which is arranged on the welding upper platform and is positioned on the right side of the third welding center; when the heat collecting strip components to be welded are input from the left inlet of the conveying welding frame, the heat collecting strip components are continuously conveyed rightward by rotating the first rotating shaft of the assembly positioning device, meanwhile, the first rotating shaft of the first positioning clamping device of the assembly positioning device descends, the positive pressure friction sleeve is in rolling friction contact with the upper surface of the metal strip, and the positive pressure grooved wheel is positioned above the upper surface of the metal pipe and is used for transversely poking and adjusting the position of the metal pipe by utilizing the arc of the guide cross section of the positive pressure grooved wheel; step three, after the heat collecting strip assembly moves forward and passes over the laser welding machine, firstly, the length positioning surface of the metal tube is in positioning contact with the front end surface of the metal tube; secondly, the length positioning surface of the metal belt is in positioning contact with the front end surface of the metal belt; thirdly, starting to weld the photoelectric switch to obtain a signal, driving the step-type positioning block to descend by the positioning cylinder III, and continuously welding the heat collecting strip component by the laser welding machine; fourthly, when the right end of the heat collecting strip assembly reaches the output device, a fourth discharging guide roller rotates at the same speed to drive the heat collecting strip assembly to move right, and a discharging positive pressure friction roller of the discharging pressing device is in rolling friction contact with the upper surface of the metal strip piece; and fifthly, after the photoelectric switch for stopping welding detects that the heat collection strip component completely passes through the laser welding machine, the laser welding machine ascends to stop welding, and meanwhile, the first rotating shaft ascends.
The method comprises the following steps of a first step, wherein the first step is performed by means of a transmission device for an automatic solar heat collecting strip laser welding device, the transmission device comprises a feeding input device arranged at the left input side of a laser welding machine, the feeding input device comprises a feeding input rack, a feeding driving shaft arranged at one end of the feeding input rack, a feeding driven shaft arranged at the other end of the feeding input rack, a feeding driving motor arranged on the feeding input rack and in transmission connection with the feeding driving shaft, and a feeding skirt belt sleeved between the feeding driving shaft and the feeding driven shaft and used for transversely positioning a metal strip piece placed on the feeding skirt belt; firstly, placing a heat collecting strip assembly to be assembled and welded on a feeding skirt belt, wherein the feeding skirt belt drives the heat collecting strip assembly to be conveyed rightwards, and rollers on a transverse alignment straight screw nut adjust a metal strip part to be in a longitudinal state; secondly, after the zero photoelectric switch detects the heat collection strip component, the metal pipe is transversely aligned with the cylinder of the metal pipe to transversely work, and the metal pipe is adjusted to be in a longitudinal state.
The method further comprises a step six, wherein the step six is carried out by means of a discharging conveying device, and the discharging conveying device comprises a discharging output rack, a discharging driving wheel arranged on the discharging output rack, a discharging driving motor and a discharging driven wheel which are respectively arranged on the discharging output rack, and a discharging conveying belt arranged on the discharging driving motor and the discharging driven wheel; when the heat collecting strip assembly walks rightwards to the discharging conveyor belt, the linear speed of the discharging conveyor belt drives the heat collecting strip assembly to rightwards at a linear speed not lower than that of the fourth discharging guide roller, and the discharging friction wheel is in rolling friction contact with the upper surface of the metal strip piece; step seven, after the photoelectric switch is stopped when the discharge No. five alignment detects that the left end of the heat collection strip assembly passes, one-time welding output is completed; and step eight, starting a subsequent finished product packaging inlet after the discharging photoelectric switch IV detects that the left end of the heat collecting strip assembly passes.
The invention can process and produce solar heat collection strips with random lengths, is suitable for different buildings, especially roof boards of large-scale buildings, and can completely realize solar building integration.
The beneficial effects of the present invention are not limited to this description, but are described in more detail in the detailed description section for better understanding.
Drawings
FIG. 1 is a schematic view of the construction of a thermal belt assembly of the present invention.
Fig. 2 is a schematic side view of the welding device of the present invention.
Fig. 3 is a schematic top view of the welding device of the present invention.
Fig. 4 is a schematic structural view of a first driving device of the present invention.
Fig. 5 is a schematic structural view of a welding center No. three of the present invention.
Fig. 6 is a schematic structural view of a third positioning device of the present invention.
Fig. 7 is a schematic view of another angle structure of the third positioning device of the present invention.
Fig. 8 is a schematic structural view of a fourth discharge guide roller of the present invention.
Fig. 9 is a schematic view of the overall structure of the present invention.
Fig. 10 is a schematic diagram of the overall top view of the present invention.
Fig. 11 is a schematic view of the overall structure of the present invention.
Fig. 12 is a schematic view of the structure of the feeder input chassis of the present invention.
FIG. 13 is a schematic view of another angular configuration of the feeder carriage of the present invention from above.
Fig. 14 is a schematic structural view of the outfeed output housing of the present invention.
Fig. 15 is a schematic structural view of the discharge friction wheel of the present invention.
Wherein: 1. a heat collecting strip assembly; 2. a metal strip member; 3. a metal pipe fitting; 4. the front end face of the metal tube; 5. a metal belt front end face; 6. a welding frame; 7. welding an upper platform; 8. a first driving device; 9. a first positioning and clamping device; 10. a fourth discharging guide roller; 11. a fifth discharging guide roller; 12. transversely aligning the linear screw nut; 13. a third welding center; 14. a laser welding machine; 15. a discharging and compacting device; 16. a first driving roller; 17. a lifting cylinder I; 18. a first rotating shaft; 19. a positive pressure friction sleeve; 20. a transmission output wheel; 21. a third driven roller; 22. a transmission input wheel; 23. a third positioning device; 24. a third positioning cylinder; 25. a metal strip length positioning surface; 26. a metal tube length positioning surface; 27. a metal pipe process notch; 28. a discharging lifting frame; 29. a discharging positive pressure friction roller; 32. A first lower photoelectric switch; 33. welding the photoelectric switch; 34. stopping welding the photoelectric switch; 36. A positive pressure sheave; 30. transversely aligning the metal tube cylinder; 31. zero photoelectric switch; 35. a fourth discharging photoelectric switch; 51. a feeding input rack; 52. feeding skirt bands; 53. a feeding driven shaft; 54. a feeding driving shaft; 55. a feeding driving motor; 56. a feeding support rod; 57. a discharging output rack; 58. a discharge conveyor belt; 59. discharging fifth straightening to stop the photoelectric switch; 60. a discharging driving motor; 61. a discharge driving wheel; 62. a discharging driven wheel; 63. a discharge press roll device; 64. a discharging compacting cylinder; 65. a discharge rotation shaft; 66. and a discharging friction wheel.
Detailed Description
As shown in fig. 1 to 15, the heat collecting strip assembly 1 of the present invention comprises a metal strip 2, and a metal pipe member 3 welded in parallel to the upper surface of the metal strip 2, with a metal pipe front end surface 4 exposed at or equal to a metal strip front end surface 5.
The automatic solar heat collecting strip laser welding device of the embodiment comprises a welding frame 6, a welding upper platform 7, a third welding center 13, a pairing positioning device and/or an output device, wherein the welding upper platform 7 is positioned on the welding frame 6 and used for conveying a heat collecting strip component 1 from left to right, the third welding center 13 is arranged on the welding upper platform 7, the pairing positioning device is arranged on the welding upper platform 7 and positioned on the left side of the third welding center 13, and the output device is arranged on the welding upper platform 7 and positioned on the right side of the third welding center 13.
The invention can process and produce solar heat collection strips with random lengths, is suitable for different buildings, especially roof boards of large-scale buildings, and can completely realize solar building integration.
The heat collecting strip assembly 1 is sent into the welding frame 6 from the left side, the pre-welding assembly adjustment is realized through the assembly positioning device, then the welding center 13 is used for welding under the transmission of rolling friction force of the rotating roller, and the welded heat collecting strip assembly 1 is output from the output device.
The third welding center 13 includes a laser welding machine 14 disposed above the welding frame 6, a third driven roller 21 disposed on the welding upper platform 7 in a transversely rotating manner and located under the guide roller of the laser welding machine 14 and used for rolling friction contact with the lower surface of the metal strip member 2, a transmission input wheel 22 disposed at one end of the third driven roller 21 and used for transmission connection with a power source, and a third positioning device 23 disposed on the right side of the third driven roller 21.
The transmission input wheel 22 can be a coupling or other transmission parts connected with a power source so as to realize the rotation of the driven roller 21, and the laser welding machine 14 is a laser welding machine or an ion welding machine which are commonly used in the prior art.
The third positioning device 23 comprises a third positioning cylinder 24 vertically arranged on the right side of the third driven roller 21, a third step type positioning block arranged at the upper end of a piston rod of the third positioning cylinder 24, a metal strip length positioning surface 25 vertically arranged on the left side of the third step type positioning block and used for positioning and contacting with the metal strip front end surface 5, a metal pipe length positioning surface 26 vertically arranged on the third step type positioning block and positioned on the right side of the metal strip length positioning surface 25 and used for positioning and contacting with the metal pipe front end surface 4, and a metal pipe process notch 27 horizontally arranged on the step surface at the left lower end of the metal pipe length positioning surface 26 and used for corresponding to the lower surface of the outer side wall of the metal pipe 3; the metal tube tooling gap 27 is located between the metal tube length locating surface 26 and the metal strip length locating surface 25.
When the metal tube and the metal belt are equal in length, the positioning can be realized by only one positioning plate, the blocking is avoided through the metal tube process notch 27, the process is reasonable, the requirement that the metal tube protrudes out of the metal belt can be met through the step design, the longitudinal positioning tool setting is realized, and the tool setting is counted in the programming of a welding machine, so that the automatic welding is convenient to realize.
The pairing positioning device comprises a first driving device 8 and a first positioning and clamping device 9 which are arranged on the welding upper platform 7; thereby realizing the assembly and fixation before welding.
The first driving device 8 comprises a first driving roller 16 which is transversely and rotatably arranged on the welding upper platform 7 and driven by a first servo motor and is used for rolling friction contact with the lower surface of the metal belt piece 2, and a transmission output wheel 20 which is arranged at one end of the first driving roller 16 and is in transmission connection with a transmission input wheel 22 through a transmission belt or a gear; the transmission output wheel 20 is connected through the transmission input wheel 22 in a transmission way, so that the speed between the transmission rollers is conveniently ensured to be the same, a speed regulator or a differential compensator and the like are omitted, the structure is simplified, and the speed regulation is accurate.
The first positioning and clamping device 9 comprises a first lifting cylinder 17 which is vertical to the welding frame 6, a first rotating shaft 18 which is transversely arranged at the upper end of the first lifting cylinder 17, a positive pressure friction sleeve 19 which is rotatably arranged on the first rotating shaft 18 and is used for being in rolling friction contact with the upper surface of the metal strip part 2, and a positive pressure grooved pulley 36 which is rotatably arranged on the first rotating shaft 18 and is used for guiding the cross section to transversely stir the upper surface of the metal pipe part 3.
The compression of the welding time is realized by the positive pressure friction sleeve 19, and the metal tube is subjected to fine adjustment and compression by the cross section process notch of the positive pressure grooved wheel 36.
At least one pair of transverse alignment linear screw nuts 12 positioned on two transverse sides of the metal belt piece 2 are arranged on the left side of the assembly positioning device, and rollers in rolling contact with the transverse side surfaces of the metal belt piece 2 are arranged at the end parts of the transverse alignment linear screw nuts 12. Thereby realizing the transverse adjustment of the position of the metal belt piece and adapting to the width of different metal belts such as aluminum belts.
The output device comprises a fourth discharging guide roller 10 which is arranged on the welding upper platform 7, is in rolling contact with the lower surface of the metal belt piece 2 and is driven by a servo motor, and a fifth discharging guide roller 11 which is arranged on the right side of the fourth discharging guide roller 10 and is in transmission connection with the fourth discharging guide roller 10; the discharging pressing device 15 comprises a discharging lifting frame 28 which is arranged on the welding upper platform 7 and is driven by an air cylinder, and a discharging positive pressure friction roller 29 which is arranged on a transverse rotating shaft of the discharging lifting frame 28 and is used for rolling friction contact with the upper surface of the metal belt piece 2; the discharging positive pressure friction roller 29 is positioned above the corresponding fourth discharging guide roller 10 or the corresponding fifth discharging guide roller 11. Because the welding is finished, the positive pressure grooved pulley 36 is omitted, and only the positive pressure friction roller 29 is used for pressing, so that the tilting deformation of the roller is prevented.
A second-start welding photoelectric switch 33 is provided on the laser welder 14 and the third positioning device 23, a first-lower photoelectric switch 32 is provided on the right side of the first driving roller 16, and a third-stop welding photoelectric switch 34 is provided on the left side of the laser welder 14. Thereby being convenient for automatic control and improving the welding precision of the equipment.
As shown in fig. 1 to 8, the transmission device for an automatic solar heat collecting strip laser welding device of the present embodiment includes a feeding input device provided on the input left side of the laser welding machine 14, the feeding input device including a feeding input frame 51, a feeding driving shaft 54 provided at one end of the feeding input frame 51, a feeding driven shaft 53 provided at the other end of the feeding input frame 51, a feeding driving motor 55 provided on the feeding input frame 51 and in driving connection with the feeding driving shaft 54, and a feeding skirt belt 52 provided between the feeding driving shaft 54 and the feeding driven shaft 53 in a sleeved manner for positioning the metal strip 2 placed thereon laterally. Positioning of the metal strip in the width direction is achieved by the groove width of the feed skirt strip 52, and speed control is achieved by the feed drive motor 55.
A feeding support rod 56 for supporting the feeding skirt belt 52 is transversely arranged on the feeding input frame 51; prevent the conveyer belt from sagging because of gravity in the middle of, guarantee the levelness of conveyer belt.
At least two pairs of transverse alignment metal pipe cylinders 30 positioned on two transverse sides of the metal pipe fitting 3 are arranged on the feeding skirt band 52; rollers in rolling contact with the lateral sides of the metal pipe fitting 3 are arranged at the end parts of the lateral alignment metal pipe cylinder 30, so that the rough adjustment of the metal pipe fitting 3 is realized. A zero-number photoelectric switch 31 is provided on the left side of the lateral alignment metal tube cylinder 30. Realizing automatic control.
The right side of the output of the laser welding machine 14 is provided with a discharge conveying device, the discharge conveying device comprises a discharge output rack 57, a discharge driving wheel 61 arranged on the discharge output rack 57, a discharge driving motor 60 and a discharge driven wheel 62 respectively arranged on the discharge output rack 57, and a discharge conveying belt 58 arranged on the discharge driving motor 60 and the discharge driven wheel 62, wherein the linear speed of the discharge conveying belt 58 is not lower than that of the feed skirt belt 52. Through the speed difference, the discharge of sufficient time is ensured.
A fifth discharge straightening and stopping photoelectric switch 59 is arranged on the left side of the discharge conveyor 58, and a fourth discharge photoelectric switch 35 is arranged on the right side of the output device. Realizing automatic control.
The discharge press roller device 63 positioned above the discharge conveyor belt 58 is arranged on the discharge output rack 57, and the discharge press roller device 63 comprises a discharge pressing cylinder 64 vertically arranged on the discharge output rack 57, a discharge rotating shaft 65 transversely arranged on the discharge pressing cylinder 64 in a rotating mode, and a discharge friction wheel 66 rotatably arranged on the discharge rotating shaft 65 and in rolling friction contact with the upper surface of the metal belt piece 2, so that warping during welding and conveying is prevented.
The automatic solar heat collecting strip laser welding process comprises the following steps that firstly, a heat collecting strip assembly 1 to be assembled and welded is placed on a feeding skirt band 52, the feeding skirt band 52 drives the heat collecting strip assembly 1 to be conveyed rightwards, and rollers on a linear screw nut 12 are transversely aligned to adjust a metal strip piece 2 to be in a longitudinal state; secondly, when the zero photoelectric switch 31 detects the heat collecting strip assembly 1, the metal pipe fitting 3 is adjusted to be in a longitudinal state by transversely aligning the metal pipe cylinder 30 and transversely working.
Secondly, when the heat collecting strip assembly 1 to be welded is input from the left inlet of the conveying welding frame 6, the heat collecting strip assembly 1 is continuously conveyed rightward by rotating the first rotating shaft 18 of the assembly positioning device, meanwhile, the first rotating shaft 18 of the first positioning and clamping device 9 of the assembly positioning device descends, the positive pressure friction sleeve 19 is in rolling friction contact with the upper surface of the metal strip 2, the positive pressure grooved pulley 36 is positioned above the upper surface of the metal pipe 3, and the position of the metal pipe 3 is transversely shifted and adjusted by utilizing the arc of the guide cross section of the positive pressure grooved pulley 36; step three, after the heat collecting strip assembly 1 moves forward and passes over the laser welding machine 14, firstly, the metal tube length positioning surface 26 is in positioning contact with the metal tube front end surface 4; secondly, the metal belt length positioning surface 25 is in positioning contact with the metal belt front end surface 5; thirdly, a second welding photoelectric switch 33 obtains a signal, a third positioning cylinder 24 drives a third step type positioning block to descend, and the laser welding machine 14 continuously welds the heat collecting strip assembly 1; step four, after the right end of the heat collecting strip assembly 1 reaches the output device, the discharging guide roller 10 of the fourth number rotates at the same speed to drive the heat collecting strip assembly 1 to move right, and the discharging positive pressure friction roller 29 of the discharging pressing device 15 is in rolling friction contact with the upper surface of the metal strip piece 2; and fifthly, after the stop welding photoelectric switch 34 detects that the heat collecting strip assembly 1 completely passes through the laser welder 14, the laser welder 14 ascends to stop welding, and meanwhile, the first rotating shaft 18 ascends.
Step six, when the heat collecting strip assembly 1 walks rightwards to the discharging conveyor belt 58, the linear speed of the discharging conveyor belt 58 drives the heat collecting strip assembly 1 to rightwards at the linear speed not lower than that of the fourth discharging guide roller 10, and the discharging friction wheel 66 is in rolling friction contact with the upper surface of the metal strip 2; step seven, after the photoelectric switch 59 is stopped when the discharge No. five alignment detects that the left end of the heat collection strip assembly 1 passes, one-time welding output is completed; and step eight, when the discharging photoelectric switch 35 detects that the left end of the heat collecting strip assembly 1 passes, starting a subsequent finished product packaging inlet.
In brief, when the pipe reaches the signal switch, the pipe guide wheel of the automatic laser welding input machine is closed, and the purpose is to fix two points to one line, so that the pipe smoothly enters the position of the welding machine guide wheel. After the tail part of the pipe reaches the signal switch, the pipe positioning guide wheel is started. After reaching the signal switch, the pipe guide wheel is started; when the pipe reaches the 1# photoelectric switch of the automatic laser welding machine, the plate pressing wheel on the left side of the welding machine head and the coaxial pipe guide wheel (the 1# group of air cylinders) move downwards, and the 1# servo motor starts to work simultaneously. (note that the tubing guide wheels do not need to be compacted); the pipe is generally set to advance the plate by a distance, the pipe reaches the positioning block earlier than the plate, after the pipe and the plate are in place respectively, the No. 2 photoelectric switch provides signals, the welding head part, the pipe pressing wheel, the positioning block (No. 2 and No. 3 cylinder groups) simultaneously descend, the No. 2 servo motor and the laser welding start to work, the pressing wheel (No. 4 and No. 5 cylinder groups) on the right side of the welding head work simultaneously, and the automatic laser welding output machine works simultaneously. When the welding is finished, a 3# photoelectric switch in front of the positioning block provides a signal to finish the welding, and the pipe guide wheel and the welding head part (the first cylinder and the second cylinder) are enabled to ascend to finish one-time welding. When the workpiece is completely sent out of the welding machine platform, the 3# photoelectric switch provides a signal for an automatic laser welding output machine to increase the speed, and the workpiece is quickly sent out of the manual turn-over package. And meanwhile, the positioning block and the right two plate pressing wheels (three, four and five cylinder groups) are arranged upwards, the No. 2 servo motor stops working, and after a workpiece passes through the No. 4 photoelectric switch, the automatic laser welding output machine stops working, so that the whole flow of welding a heating strip is finished. And after the second sheet and the pipe enter the signal switch of the automatic laser welding input machine, the next cycle starts. The 4# photoelectric switch also has a counting function.
The invention realizes automatic assembly, welding and output of the heat collecting strip components, realizes accurate positioning through the photoelectric switch or the camera or the sensor, and has reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, fund saving, compact structure and convenient use.
The present invention has been fully described for the purposes of clarity and understanding, and is not necessarily limited to the prior art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; it is obvious to a person skilled in the art to combine several embodiments of the invention. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The automatic solar heat collecting strip laser welding process is characterized by comprising an automatic solar heat collecting strip laser welding device, wherein the welding device comprises a welding frame (6), a welding upper platform (7) which is positioned on the welding frame (6) and used for conveying a heat collecting strip component (1) from left to right, a third welding center (13) which is arranged on the welding upper platform (7), a pairing positioning device which is arranged on the welding upper platform (7) and is positioned on the left side of the third welding center (13) and/or an output device which is arranged on the welding upper platform (7) and is positioned on the right side of the third welding center (13);
the third welding center (13) comprises a laser welding machine (14) arranged above the welding frame (6), a third driven roller (21) which is transversely arranged on the welding upper platform (7) in a rotating mode and is positioned right below a guide roller of the laser welding machine (14) and is used for being in rolling friction contact with the lower surface of the metal belt piece (2), a transmission input wheel (22) which is arranged at one end of the third driven roller (21) and is used for being in transmission connection with a power source, and a third positioning device (23) which is arranged on the right side of the third driven roller (21); a transmission device is arranged on the left input side of the laser welding machine (14);
the third positioning device (23) comprises a third positioning cylinder (24) vertically arranged on the right side of a third driven roller (21), a third step positioning block arranged at the upper end of a piston rod of the third positioning cylinder (24), a metal strip length positioning surface (25) vertically arranged on the left side of the third step positioning block and used for positioning and contacting with the metal strip front end surface (5), a metal pipe length positioning surface (26) vertically arranged on the third step positioning block and positioned on the right side of the metal strip length positioning surface (25) and used for positioning and contacting with the metal pipe front end surface (4), and a metal pipe process notch (27) horizontally arranged on the step surface at the left lower end of the metal pipe length positioning surface (26) and used for corresponding to the lower surface of the outer side wall of the metal pipe fitting (3); the metal tube process notch (27) is positioned between the metal tube length positioning surface (26) and the metal belt length positioning surface (25);
the pairing positioning device comprises a first driving device (8) and a first positioning and clamping device (9) which are arranged on the welding upper platform (7);
the first driving device (8) comprises a first driving roller (16) which is transversely and rotatably arranged on the welding upper platform (7) and driven by a first servo motor and is used for rolling friction contact with the lower surface of the metal belt piece (2), and a transmission output wheel (20) which is arranged at one end of the first driving roller (16) and is in transmission connection with a transmission input wheel (22) through a transmission belt or a gear;
the first positioning and clamping device (9) comprises a first lifting cylinder (17) which is vertically arranged on the welding frame (6), a first rotating shaft (18) which is transversely arranged at the upper end of the first lifting cylinder (17), a positive pressure friction sleeve (19) which is rotatably arranged on the first rotating shaft (18) and is used for being in rolling friction contact with the upper surface of the metal strip part (2), and a positive pressure grooved wheel (36) which is rotatably arranged on the first rotating shaft (18) and is used for transversely stirring the upper surface of the metal pipe part (3) by using the positive pressure grooved wheel to guide the cross section;
at least one pair of transverse alignment straight screw nuts (12) positioned on the two transverse sides of the metal belt piece (2) are arranged on the left side of the assembly positioning device, and rollers in rolling contact with the transverse side surfaces of the metal belt piece (2) are arranged at the end parts of the transverse alignment straight screw nuts (12);
the output device comprises a fourth discharging guide roller (10) which is arranged on the welding upper platform (7) and is in rolling contact with the lower surface of the metal belt piece (2) and driven by a servo motor, and a fifth discharging guide roller (11) which is arranged on the right side of the fourth discharging guide roller (10) and is in transmission connection with the fourth discharging guide roller (10); the discharging pressing device (15) comprises a discharging lifting frame (28) which is arranged on the welding upper platform (7) and driven by an air cylinder, and a discharging positive pressure friction roller (29) which is arranged on a transverse rotating shaft of the discharging lifting frame (28) and is used for rolling friction contact with the upper surface of the metal belt piece (2);
the discharging positive pressure friction roller (29) is positioned above the corresponding fourth discharging guide roller (10) or the corresponding fifth discharging guide roller (11);
a second welding start photoelectric switch (33) is arranged between the laser welding machine (14) and the third positioning device (23), a first lower photoelectric switch (32) is arranged on the right side of the first driving roller (16), and a third welding stop photoelectric switch (34) is arranged on the left side of the laser welding machine (14);
the transmission device comprises a feeding input device arranged at the left input side of the laser welding machine (14), wherein the feeding input device comprises a feeding input rack (51), a feeding driving shaft (54) arranged at one end of the feeding input rack (51), a feeding driven shaft (53) arranged at the other end of the feeding input rack (51), a feeding driving motor (55) arranged on the feeding input rack (51) and in transmission connection with the feeding driving shaft (54), and a feeding skirt band (52) sleeved between the feeding driving shaft (54) and the feeding driven shaft (53) and used for transversely positioning a metal belt piece (2) placed on the feeding skirt band;
a feeding support rod (56) for supporting the feeding skirt band (52) is transversely arranged on the feeding input frame (51);
at least two pairs of transverse alignment metal pipe cylinders (30) positioned on two transverse sides of the metal pipe fitting (3) are arranged on the feeding skirt band (52); the end part of the transverse alignment metal pipe cylinder (30) is provided with a roller which is in rolling contact with the transverse side surface of the metal pipe fitting (3);
a zero photoelectric switch (31) is arranged on the left side of the transverse alignment metal tube cylinder (30);
the right side of the output of the laser welding machine (14) is provided with a discharge conveying device, the discharge conveying device comprises a discharge output rack (57), a discharge driving wheel (61) arranged on the discharge output rack (57), a discharge driving motor (60) and a discharge driven wheel (62) which are respectively arranged on the discharge output rack (57), and a discharge conveying belt (58) arranged on the discharge driving motor (60) and the discharge driven wheel (62), wherein the linear speed of the discharge conveying belt (58) is not lower than that of a feeding skirt band (52); a fifth discharging straightening stopping photoelectric switch (59) is arranged on the left side of the discharging conveyor belt (58), and a fourth discharging photoelectric switch (35) is arranged on the right side of the output device;
a discharging press roller device (63) positioned above the discharging conveyor belt (58) is arranged on the discharging output rack (57), and the discharging press roller device (63) comprises a discharging pressing cylinder (64) vertically arranged on the discharging output rack (57), a discharging rotating shaft (65) transversely arranged on the discharging pressing cylinder (64) in a rotating manner, and a discharging friction wheel (66) rotatably arranged on the discharging rotating shaft (65) and in rolling friction contact with the upper surface of the metal belt piece (2);
the process comprises the following steps:
step two, by means of an automatic solar heat collecting strip laser welding device, the device comprises a welding frame (6), a welding upper platform (7) which is positioned on the welding frame (6) and used for conveying the heat collecting strip component (1) from left to right, a third welding center (13) which is arranged on the welding upper platform (7), a pairing positioning device which is arranged on the welding upper platform (7) and is positioned on the left side of the third welding center (13) and/or an output device which is arranged on the welding upper platform (7) and is positioned on the right side of the third welding center (13);
when the heat collecting strip assembly (1) to be welded is input from the left inlet of the conveying welding frame (6), the heat collecting strip assembly (1) is continuously conveyed rightward by rotating the first rotating shaft (18) of the pairing positioning device, meanwhile, the first rotating shaft (18) of the first positioning and clamping device (9) of the pairing positioning device descends, the positive pressure friction sleeve (19) is in rolling friction contact with the upper surface of the metal strip part (2), and the positive pressure grooved wheel (36) is positioned above the upper surface of the metal pipe part (3) and is used for transversely poking and adjusting the position of the metal pipe part (3) by utilizing the arc of the guide cross section of the positive pressure grooved wheel;
step three, after the heat collection strip assembly (1) moves forward and passes over the laser welding machine (14), firstly, the metal tube length positioning surface (26) is in positioning contact with the metal tube front end surface (4); secondly, a metal belt length positioning surface (25) is in positioning contact with the front end surface (5) of the metal belt; thirdly, a photoelectric switch (33) is welded at the second time to obtain a signal, a third positioning cylinder (24) drives a third step type positioning block to descend, and a laser welding machine (14) is used for continuously welding the heat collecting strip assembly (1);
fourthly, after the right end of the heat collecting strip assembly (1) reaches the output device, a fourth discharging guide roller (10) rotationally drives the heat collecting strip assembly (1) to right at the same speed, and a discharging positive pressure friction roller (29) of a discharging pressing device (15) is in rolling friction contact with the upper surface of the metal strip (2);
and fifthly, after the photoelectric switch (34) for stopping welding detects that the heat collection strip assembly (1) completely passes through the laser welding machine (14), the laser welding machine (14) ascends to stop welding, and meanwhile, the first rotating shaft (18) ascends.
2. The automatic solar thermal ribbon laser welding process of claim 1, further comprising, prior to step two:
step one, by means of a transmission device for an automatic solar heat collecting strip laser welding device, the transmission device comprises a feeding input device arranged at the input left side of a laser welding machine (14), wherein the feeding input device comprises a feeding input rack (51), a feeding driving shaft (54) arranged at one end of the feeding input rack (51), a feeding driven shaft (53) arranged at the other end of the feeding input rack (51), a feeding driving motor (55) arranged on the feeding input rack (51) and in transmission connection with the feeding driving shaft (54), and a feeding skirt band (52) sleeved between the feeding driving shaft (54) and the feeding driven shaft (53) and used for transversely positioning a metal strip (2) placed on the feeding skirt band;
firstly, placing a heat collecting strip assembly (1) to be assembled and welded on a feeding skirt band (52), wherein the feeding skirt band (52) drives the heat collecting strip assembly (1) to be conveyed rightwards, and rollers on a transverse alignment straight screw nut (12) adjust a metal strip part (2) to be in a longitudinal state; secondly, after the zero photoelectric switch (31) detects the heat collection strip assembly (1), the metal pipe fitting (3) is adjusted to be in a longitudinal state by transversely aligning the metal pipe cylinder (30).
3. The automated solar thermal ribbon laser welding process of claim 1, further comprising, after step five:
step six, by means of a discharging conveying device, the discharging conveying device comprises a discharging output rack (57), a discharging driving wheel (61) arranged on the discharging output rack (57), a discharging driving motor (60) and a discharging driven wheel (62) which are respectively arranged on the discharging output rack (57), and a discharging conveying belt (58) arranged on the discharging driving motor (60) and the discharging driven wheel (62);
when the heat collecting strip assembly (1) walks rightwards to the discharging conveyor belt (58), the linear speed of the discharging conveyor belt (58) drives the heat collecting strip assembly (1) to rightwards at a speed not lower than that of the fourth discharging guide roller (10), and the discharging friction wheel (66) is in rolling friction contact with the upper surface of the metal strip part (2);
step seven, after the photoelectric switch (59) is stopped when the discharge No. five alignment detects that the left end of the heat collection strip assembly (1) passes, one-time welding output is completed;
and step eight, when the discharging photoelectric switch (35) of the fourth discharging photoelectric switch detects that the left end of the heat collecting strip assembly (1) passes, starting a subsequent finished product packaging inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208842.4A CN108326422B (en) | 2018-03-14 | 2018-03-14 | Automatic solar heat collection strip laser welding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208842.4A CN108326422B (en) | 2018-03-14 | 2018-03-14 | Automatic solar heat collection strip laser welding process |
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| CN108326422A CN108326422A (en) | 2018-07-27 |
| CN108326422B true CN108326422B (en) | 2023-08-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756210A (en) * | 2012-08-07 | 2012-10-31 | 无锡市奇能焊接设备有限公司 | Laser welding device of solar flat plate collector |
| CN202715962U (en) * | 2012-08-07 | 2013-02-06 | 无锡市奇能焊接设备有限公司 | Laser welding equipment of flat-plate solar collector |
| CN203124965U (en) * | 2013-02-01 | 2013-08-14 | 深圳市大族激光科技股份有限公司 | Heat collection plate laser welding system |
| CN105728943A (en) * | 2016-05-16 | 2016-07-06 | 惠州市诺坚五金制品有限公司 | High-efficiency automatic laser welding machine |
| CN107262893A (en) * | 2017-08-09 | 2017-10-20 | 唐山开元阻焊设备有限公司 | A kind of solar water heater heat-collecting plate seam welder |
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2018
- 2018-03-14 CN CN201810208842.4A patent/CN108326422B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756210A (en) * | 2012-08-07 | 2012-10-31 | 无锡市奇能焊接设备有限公司 | Laser welding device of solar flat plate collector |
| CN202715962U (en) * | 2012-08-07 | 2013-02-06 | 无锡市奇能焊接设备有限公司 | Laser welding equipment of flat-plate solar collector |
| CN203124965U (en) * | 2013-02-01 | 2013-08-14 | 深圳市大族激光科技股份有限公司 | Heat collection plate laser welding system |
| CN105728943A (en) * | 2016-05-16 | 2016-07-06 | 惠州市诺坚五金制品有限公司 | High-efficiency automatic laser welding machine |
| CN107262893A (en) * | 2017-08-09 | 2017-10-20 | 唐山开元阻焊设备有限公司 | A kind of solar water heater heat-collecting plate seam welder |
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| CN108326422A (en) | 2018-07-27 |
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