Laser welding equipment for solar flat plate collector

Abstract

The invention relates to the technical field of laser welding equipment, in particular to solar flat plate collector laser welding equipment which comprises a truss, a bottom frame, a feeding mechanism, a supporting frame, a driving mechanism and a moving unit, a laser welding head capable of transversely moving is mounted on the truss, and the feeding mechanism is mounted at one end of the bottom frame; the feeding mechanism is used for feeding plates, and the number of the moving units is multiple. According to the laser welding device, through the arrangement of the driving mechanism, the multiple adsorption plates circularly move to sequentially place the plates into the pipe frame, after the plates move to the position below the laser welding head, the laser welding head transversely moves to weld the plates and the calandria, and then when the adsorption plates continue to move backwards, the plates drive the pipe frame to synchronously move backwards; and after the adsorption plate moves to the rear end position, the adsorption plate and the welded plates are released for adsorption, the multiple plates are automatically placed on the pipe frame, and the welding efficiency of the wing pipe type heat collector is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding equipment, in particular to laser welding equipment for a solar flat-plate collector. Background Art

[0002] The heat absorbing plate is the main component of the wing-tube flat plate collector. It absorbs the sun's radiation energy and transfers heat to the heat transfer medium (water). The heat absorbing plate is composed of a row of tubes, a header, and a heat transfer plate. Several copper tubes are laid flat into a row of tubes, and the two ends are welded to the header. Copper plates are welded between the row of tubes to receive the heat of solar radiation. Copper tubes and copper plates have good thermal conductivity. There are many ways to make and structure the heat absorbing plate. The above-mentioned copper tube and copper plate welding structure is a better one. Because the heat absorbing copper plates are welded on both sides of the copper tube like wings, it is called a wing-tube structure. However, in the production of the heat absorbing plate, multiple copper plates need to be welded in sequence between the row of tubes. The existing welding equipment needs to manually adjust the material position for welding, and the welding efficiency is not high. Summary of the invention

[0003] The object of the present invention is to provide a solar flat-plate collector laser welding device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A solar flat-plate collector laser welding device comprises a truss, on which a laterally movable laser welding head is mounted, and further comprises: chassis; A feeding mechanism, mounted at one end of the base frame, for feeding the sheet material; There are multiple mobile units, and the multiple mobile units are cyclically moved to transport the sheet material. The mobile unit includes a mobile plate and an adsorption plate. A side wall of the adsorption plate is provided with multiple adsorption cavities, and the multiple adsorption cavities are connected to each other. The mobile plate is slidably connected to the adsorption plate, and the adsorption plate is used to adsorb the sheet material in the feeding mechanism; A driving mechanism is installed above the feeding mechanism, the driving mechanism includes two return rails, the return rails are installed on the top of the bottom frame, a plurality of the moving plates are slidably connected between the two return rails, a driving module is installed between the two return rails, and the driving module is used to drive the plurality of moving plates to move cyclically; There are two support frames, which are fixedly mounted on both sides of the base frame respectively. The top ends of the support frames are rotatably connected to a plurality of guide wheels, and the two support frames are used to limit the pipe rack.

[0005] Furthermore, both ends of the movable plate are fixedly connected with fixing members, both ends of the fixing members are rotatably connected with pulleys, and the pulleys are slidably connected with the adjacent return rails.

[0006] Further, the driving module includes a driving motor and two fixing frames, the fixing frames are fixedly connected to the base frame, the four top angle positions of the fixing frames are rotatably connected with sprockets, the four sprockets are transmission-connected with chains, a transmission shaft is rotatably connected between the two fixing frames, the transmission shaft is transmission-connected with the sprocket at a top angle position of the fixing frames, the driving motor is fixedly installed on a fixing frame, the output end of the driving motor is transmission-connected with the transmission shaft, a round shaft is fixedly connected to the middle position of the fixing part, one end of the round shaft is rotatably connected to a connecting block, and one end of the connecting block is fixedly connected to the adjacent chain.

[0007] Furthermore, two sliding bars are fixedly connected at both ends of the other side of the adsorption plate, the sliding bars are slidably sleeved with the movable plate, one end of the sliding bar is rotatably connected with a guide wheel, a return spring is arranged between one end of the sliding bar and the movable plate, the return spring is slidably sleeved with the sliding bar, a middle plate is fixedly connected between the two fixed frames, and both sides of the middle plate are fixedly connected with an outward expansion rod group.

[0008] Furthermore, the outward expansion rod group includes an outward expansion rod 1 and an outward expansion rod 2, wherein the outward expansion rod 1 is fixed at one end of the middle plate, and the outward expansion rod 2 is fixed at an upper position of the middle plate, the top end of the outward expansion rod 1 protrudes forward, and the rear end of the outward expansion rod 2 protrudes upward.

[0009] Furthermore, a piston tube is fixedly connected to one side of the movable plate, a connecting pipe head is fixedly connected to the other side wall of the adsorption plate, the connecting pipe head is connected to multiple adsorption chambers on the adsorption plate, a hose is fixedly connected between one end of the piston tube and the connecting pipe head, a piston rod is slidably connected to the piston tube, one end of the piston rod is fixedly connected to an end rod, and a movable rod group is fixedly connected to the middle plate.

[0010] Furthermore, the moving rod group includes an outer push rod and a reset rod, the outer push rod is located above the middle plate and fixedly connected to the middle plate, the reset rod is located below the middle plate and fixedly connected to the middle plate, the outer push rod is L-shaped as a whole, one end of the outer push rod is offset to the right from the other end, and the rear end of the reset rod is offset to the left from the front end.

[0011] Furthermore, the feeding mechanism includes a feeding box, the bottom end of the feeding box is fixedly connected to one end of the base frame, the inner wall of the feeding box is slidably connected to a push plate, both ends of one side wall of the push plate are fixedly connected to a sliding rod, the sliding rod is slidably sleeved with the feeding box, a return spring is slidably sleeved on the outer side wall of one end of the sliding rod, and a sheet material outlet is provided at one end of the feeding box.

[0012] Furthermore, the length of the adsorption plate is smaller than the length of the plate material outlet.

[0013] Furthermore, a baffle is fixedly connected to the top side of one end of the loading box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the driving mechanism, multiple adsorption plates move cyclically to place the plates in the pipe rack in sequence. When the plates move to the bottom of the laser welding head, the laser welding head moves horizontally to weld the plates to the row pipes. Then, when the adsorption plate continues to move backward, the pipe rack is driven to move backward synchronously through the plates. After the adsorption plate moves to the rear end position, the adsorption plate and the welded plates are released from adsorption, so that multiple plates can be automatically placed on the pipe rack, thereby improving the welding efficiency of the wing-tube collector. 2. Through the setting of the outward expansion rod group and the moving rod group, when the mobile unit moves to the front end position of the return rail and moves upward, through the outward expansion rod 1, when the moving plate moves up, the outward expansion rod 1 squeezes the guide wheel 2 to move the adsorption plate forward, so that the adsorption plate contacts the sheet material in the feeding mechanism, thereby adsorbing the sheet material; when the adsorption plate moves to the top of the outward expansion rod 2 and moves from front to back, the adsorption plate is squeezed by the outward expansion rod 2, so that the sheet material moves upward horizontally, thereby placing the sheet material between the corresponding two rows of pipes; then the height position of the adsorption plate remains unchanged and moves backward, which is convenient for placing the sheet material in the pipe rack and facilitating subsequent welding by the laser welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall front view structure of the present invention; Figure 3 It is a schematic diagram of the structure of the driving mechanism in the present invention; Figure 4 It is a schematic diagram of the side view structure of multiple mobile units in the present invention; Figure 5 It is a schematic diagram of the return rail structure in the present invention; Figure 6 It is a schematic diagram of the structure of the mobile unit in the present invention; Figure 7 It is a schematic diagram of the structure of the external expansion rod group in the present invention; Figure 8 It is a schematic diagram of the structure of the moving rod group in the present invention; Fig. 9 It is a schematic diagram of the structure of the feeding mechanism in the present invention.

[0016] In the figure: 100, truss; 110, laser welding head; 200, bottom frame; 300, feeding mechanism; 310, feeding box; 311, sheet material outlet; 312, baffle; 320, push plate; 321, slide bar 1; 322, return spring 1; 400, support frame; 410, guide wheel 1; 500, driving mechanism; 510, return rail; 520, driving module; 521, fixing frame; 522, driving motor; 523, transmission shaft; 524, sprocket; 525, chain; 530 , middle plate; 540, outward expansion rod group; 541, outward expansion rod one; 542, outward expansion rod two; 550, moving rod group; 551, outward push rod; 552, reset rod; 600, moving unit; 610, moving plate; 620, fixing piece; 621, pulley; 622, round shaft; 623, connecting block; 630, piston tube; 631, piston rod; 632, end rod; 640, adsorption plate; 641, connecting pipe head; 642, sliding rod two; 643, guide wheel two; 644, reset spring two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 to Figure 6In an embodiment of the present invention, a solar flat-plate collector laser welding device includes a truss 100, on which a laterally movable laser welding head 110 is mounted, and further includes a base frame 200, a feeding mechanism 300, a support frame 400, a driving mechanism 500 and a moving unit 600. The feeding mechanism 300 is mounted at one end of the base frame 200, and the feeding mechanism 300 is used to feed the sheet material. There are multiple moving units 600, and the multiple moving units 600 are cyclically moved to transport the sheet material. The moving unit 600 includes a moving plate 610 and an adsorption plate 640. A side wall of the adsorption plate 640 is provided with a plurality of adsorption cavities, and the plurality of adsorption cavities are connected to each other. The moving plate 610 and the adsorption plate 640 are connected to each other. The adsorption plate 640 is used to adsorb the sheet material in the feeding mechanism 300, and the driving mechanism 500 is installed above the feeding mechanism 300. The driving mechanism 500 includes two return rails 510, and the return rails 510 are installed at the top of the base frame 200. A plurality of movable plates 610 are slidably connected between the two return rails 510. A driving module 520 is installed between the two return rails 510. The driving module 520 is used to drive the plurality of movable plates 610 to move in a circular motion. There are two support frames 400, and the two support frames 400 are respectively fixedly installed on both sides of the base frame 200. The top of the support frame 400 is rotatably connected with a plurality of guide wheels 410. The two support frames 400 are used to limit the pipe rack.

[0019] Specifically, the pipe rack is pushed between the two support racks 400, and the driving module 520 drives the multiple mobile units 600 to move in a circular motion. When the mobile unit 600 moves to the front end position and moves upward, the sheet material in the feeding mechanism 300 is adsorbed by the adsorption plate 640, and the adsorption plate 640 adsorbs and brings the sheet material out of the feeding mechanism 300 when the front end moves upward. The adsorption plate 640 then moves from front to back above the driving mechanism 500, thereby placing the sheet material between the two rows of pipes of the pipe rack. When the sheet material moves to the bottom of the laser welding head 110, the laser welding head 110 moves horizontally to weld the sheet material to the row of pipes. Then, when the adsorption plate 640 continues to move backward, the pipe rack is driven to move backward synchronously through the sheet material. After the adsorption plate 640 moves to the rear end position, the adsorption plate 640 releases the adsorption from the welded sheet material, thereby realizing the automatic placement of multiple sheets on the pipe rack, thereby improving the welding efficiency of the wing-tube type collector.

[0020] Embodiment 1

[0021] like Figures 4 to 9As shown, in the present embodiment, both ends of the movable plate 610 are fixedly connected with fixing members 620, both ends of the fixing members 620 are rotatably connected with pulleys 621, the pulleys 621 are slidably connected with the adjacent return rails 510, the driving module 520 includes a driving motor 522 and two fixing frames 521, the fixing frames 521 are fixedly connected with the base frame 200, the four vertex positions of the fixing frames 521 are rotatably connected with sprockets 524, the four sprockets 524 are transmission-connected with chains 525, a transmission shaft 523 is rotatably connected between the two fixing frames 521, the transmission shaft 523 is transmission-connected with the sprocket 524 at a vertex position of the fixing frames 521, the driving motor 522 is fixedly mounted on a fixing frame 521, the output end of the driving motor 522 is transmission-connected with the transmission shaft 523, a circular shaft 622 is fixedly connected with the middle position of the fixing member 620, one end of the circular shaft 622 is rotationally connected The connecting block 623 is connected to the adjacent chain 525, and the two ends of the other side of the adsorption plate 640 are fixedly connected to the sliding rod 642, the sliding rod 642 is slidably sleeved with the moving plate 610, and one end of the sliding rod 642 is rotatably connected to the guide wheel 643, and a return spring 644 is arranged between one end of the sliding rod 642 and the moving plate 610, and the return spring 644 slides with the sliding rod 642. The middle plate 530 is fixedly connected between the two fixing frames 521, and the two sides of the middle plate 530 are fixedly connected with the outward expansion rod group 540. The outward expansion rod group 540 includes an outward expansion rod 1 541 and an outward expansion rod 2 542. The outward expansion rod 1 541 is fixed at one end of the middle plate 530, and the outward expansion rod 2 542 is fixed at the upper position of the middle plate 530. The top of the outward expansion rod 1 541 protrudes forward, and the rear end of the outward expansion rod 2 542 protrudes upward.

[0022] In this embodiment, the driving motor 522 drives the transmission shaft 523 to rotate, and the transmission shaft 523 drives the chain 525 through a sprocket 524. The chain 525 drives the moving plate 610 to move along the return rail 510 through the connecting block 623. Through the setting of the external expansion rod group 540, when the moving unit 600 moves to the front end position of the return rail 510 and moves upward, through the external expansion rod 1 541, when the moving plate 610 moves upward, the external expansion rod 1 541 squeezes the guide wheel 2 643 to make The adsorption plate 640 moves forward, so that the adsorption plate 640 contacts the sheet material in the feeding mechanism 300, thereby adsorbing the sheet material. When the adsorption plate 640 moves to above the second external expansion rod 542 and moves from front to back, the adsorption plate 640 is squeezed by the second external expansion rod 542, so that the sheet material moves upward horizontally, thereby placing the sheet material between the corresponding two rows of pipes. Subsequently, the height position of the adsorption plate 640 remains unchanged and moves backward, which facilitates the placement of the sheet material in the pipe rack and facilitates the subsequent welding by the laser welding head 110.

[0023] Embodiment 2

[0024] like Figures 5 to 9As shown, in this embodiment, a piston tube 630 is fixedly connected to one side of the movable plate 610, and a pipe head 641 is fixedly connected to the other side wall of the adsorption plate 640. The pipe head 641 is connected to multiple adsorption chambers on the adsorption plate 640. A hose is fixedly connected between one end of the piston tube 630 and the pipe head 641. A piston rod 631 is slidably connected to the piston tube 630, and one end of the piston rod 631 is fixedly connected to an end rod 632. A movable rod group 550 is fixedly connected to the middle plate 530. The movable rod group 550 includes an outer push rod 551 and a reset rod 552. The outer push rod 551 is located above the middle plate 530 and is fixedly connected to the middle plate 530. The reset rod 552 is located below the middle plate 530 and is fixedly connected to the middle plate 530. The outer push rod 551 is L-shaped as a whole. One end of the outer push rod 551 is offset to the right from the other end, and the rear end of the reset rod 552 is offset to the left from the front end. The feeding mechanism 300 includes a feeding box 3 10. The bottom end of the loading box 310 is fixedly connected to one end of the base frame 200, and the inner wall of the loading box 310 is slidably connected to a push plate 320. Both ends of one side wall of the push plate 320 are fixedly connected to a slide bar 321. The slide bar 321 is slidably sleeved with the loading box 310, and a return spring 322 is slidably sleeved on the outer wall of one end of the slide bar 321. A sheet material outlet 311 is provided at one end of the loading box 310, and the length of the adsorption plate 640 is less than the length of the sheet material outlet 311. A baffle 312 is fixedly connected to the top side of one end of the loading box 310.

[0025] In specific implementation, through the setting of the moving rod group 550, when the moving plate 610 moves up at the front end position, the end rod 632 is stuck in the right side of one end of the outer push rod 551, and as the moving plate 610 moves up, the piston rod 631 is pushed to move right through the offset of the outer push rod 551, so that after the adsorption plate 640 contacts the sheet material, the sheet material is adsorbed by providing negative pressure in the adsorption chamber, and in the process of the adsorption plate 640 moving to the middle position above the outer expansion rod 542, the outer push rod 551 continues to push the piston rod 631 to move left, thereby increasing the adsorption force of the adsorption plate 640 on the sheet material. After the sheet material is welded to the pipe rack, the backward movement of the adsorption plate 640 continues. The sheet material is adsorbed, thereby driving the pipe rack to move backward. Subsequently, after the moving plate 610 moves to the end of the outer push rod 551, the outer push rod 551 releases the squeeze on the piston rod 631, causing the piston rod 631 to retreat under the action of negative pressure, causing the adsorption chamber to release the adsorption of the sheet material. When the moving unit 600 moves to the bottom and moves from back to front, the end rod 632 is pushed to reset by the reset rod 552, which facilitates the adsorption and release of the sheet material by the adsorption plate 640 when the moving unit 600 moves in a cycle. The stacked sheets are squeezed by the push plate 320, and the baffle 312 is set to prevent the second sheet material from moving up when the first sheet material is adsorbed and moved up.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solar flat-plate collector laser welding device, comprising a truss, on which a laterally movable laser welding head is mounted, characterized in that: Also includes: chassis; A feeding mechanism, mounted at one end of the base frame, for feeding the sheet material; There are multiple mobile units, and the multiple mobile units are cyclically moved to transport the sheet material. The mobile unit includes a mobile plate and an adsorption plate. A side wall of the adsorption plate is provided with multiple adsorption cavities, and the multiple adsorption cavities are connected to each other. The mobile plate is slidably connected to the adsorption plate. A driving mechanism is installed above the feeding mechanism, the driving mechanism comprises two return rails, the return rails are installed at the top of the bottom frame, a plurality of the moving plates are slidably connected between the two return rails, and a driving module is installed between the two return rails; There are two support frames, which are fixedly mounted on both sides of the base frame respectively, and the top ends of the support frames are rotatably connected to a plurality of guide wheels.

2. The solar flat panel collector laser welding equipment according to claim 1, characterized in that: Both ends of the movable plate are fixedly connected with fixing parts, both ends of the fixing parts are rotatably connected with pulleys, and the pulleys are slidably connected with the adjacent return rails.

3. The solar flat-plate collector laser welding equipment according to claim 2, characterized in that: The driving module includes a driving motor and two fixing frames, the fixing frames are fixedly connected to the base frame, the four top angle positions of the fixing frames are rotatably connected with sprockets, the four sprockets are transmission-connected with chains, a transmission shaft is rotatably connected between two of the fixing frames, the transmission shaft is transmission-connected with a sprocket at a top angle position of the fixing frames, the driving motor is fixedly mounted on a fixing frame, the output end of the driving motor is transmission-connected with the transmission shaft, a round shaft is fixedly connected to the middle position of the fixing piece, one end of the round shaft is rotatably connected to a connecting block, and one end of the connecting block is fixedly connected to an adjacent chain.

4. The solar flat-plate collector laser welding equipment according to claim 3, characterized in that: Two sliding bars are fixedly connected at both ends of the other side of the adsorption plate, and the two sliding bars are slidably sleeved with the movable plate. One end of the two sliding bars is rotatably connected to two guide wheels, and two return springs are arranged between one end of the two sliding bars and the movable plate, and the two return springs are slidably sleeved with the two sliding bars. A middle plate is fixedly connected between the two fixed frames, and both sides of the middle plate are fixedly connected to an outward expansion rod group.

5. The solar flat-plate collector laser welding equipment according to claim 4, characterized in that: The outward expansion rod group includes outward expansion rod 1 and outward expansion rod 2. Outward expansion rod 1 is fixed at one end of the middle plate, and outward expansion rod 2 is fixed at the upper position of the middle plate. The top end of outward expansion rod 1 protrudes forward, and the rear end of outward expansion rod 2 protrudes upward.

6. The solar flat-plate collector laser welding equipment according to claim 4, characterized in that: A piston tube is fixedly connected to one side of the movable plate, and a connecting pipe head is fixedly connected to the other side wall of the adsorption plate. The connecting pipe head is connected to multiple adsorption chambers on the adsorption plate, and a hose is fixedly connected between one end of the piston tube and the connecting pipe head. A piston rod is slidably connected to the piston tube, and one end of the piston rod is fixedly connected to an end rod. A movable rod group is fixedly connected to the middle plate.

7. The solar flat-plate collector laser welding equipment according to claim 6, characterized in that: The moving rod group includes an outer push rod and a reset rod, the outer push rod is located above the middle plate and fixedly connected to the middle plate, the reset rod is located below the middle plate and fixedly connected to the middle plate, the outer push rod is L-shaped as a whole, one end of the outer push rod is offset to the right from the other end, and the rear end of the reset rod is offset to the left from the front end.

8. The solar flat-plate collector laser welding equipment according to claim 1, characterized in that: The feeding mechanism includes a feeding box, the bottom end of the feeding box is fixedly connected to one end of the base frame, the inner wall of the feeding box is slidably connected to a push plate, both ends of one side wall of the push plate are fixedly connected to a slide rod, the slide rod is slidably sleeved with the feeding box, a return spring is slidably sleeved on the outer side wall of one end of the slide rod, and a sheet material outlet is provided at one end of the feeding box.

9. The solar flat-plate collector laser welding equipment according to claim 8, characterized in that: The length of the adsorption plate is smaller than the length of the sheet material outlet.

10. The solar flat-plate collector laser welding equipment according to claim 8, characterized in that: A baffle is fixedly connected to the top side of one end of the loading box.

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