Photovoltaic cell series welding machine convenient to adapt to different sizes and method of photovoltaic cell series welding machine

Abstract

The invention discloses a photovoltaic cell series welding machine convenient to adapt to different sizes and a method thereof, and belongs to the technical field of photovoltaic cells, the photovoltaic cell series welding machine comprises a rack and further comprises a welding device, a plate feeding device and a welding strip feeding device, the welding device is installed on the left side of the rack, the plate feeding device is installed on the middle side of the rack, and the welding strip feeding device is installed on the right side of the rack. The welding strip feeding device is installed on the right side of the rack, the plate feeding device comprises a hollow rotating platform, a rotating disc, a cam, a first linear module, a second linear module, a suction cup and a double-rod air cylinder, the fixed end of the hollow rotating platform is fixedly installed on the middle side of the rack, and the rotating disc is fixedly installed at the output end of the hollow rotating platform; and a circular hole is formed in the middle side of the rotating disc. By means of the mode, battery pieces can be aligned in multiple directions while feeding is conducted, follow-up standard position feeding is facilitated, and the distance between the guide grooves of the special-shaped support can be rapidly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cells, and in particular to a photovoltaic cell string welding machine and a method thereof which are easy to adapt to different sizes. Background Art

[0002] The photovoltaic cell string welding machine is a key equipment in the production process of photovoltaic modules. Its main function is to connect photovoltaic cells into cell strings by welding. Its principle is to use high-precision welding technology, such as infrared heating welding, laser welding, etc., to make the welding ribbon and the main grid line of the cell tightly combined. For example, in the infrared heating welding process, the infrared rays emitted by the infrared lamp irradiate the welding ribbon and the main grid line of the cell to melt the solder of the welding ribbon (usually tin alloy), thereby welding the cells together.

[0003] The Chinese patent with publication number CN115070149B proposes a photovoltaic energy storage battery cell string welding machine, including a wire drawing area, a feeding area and a welding area. The wire drawing area includes a feeding platform, and the feeding platform is used to place the welding strip. A winding piece is arranged above the feeding platform, and the welding strip is wound on the surface of the winding piece. The winding piece includes a threaded rod and a threaded sleeve. There are several threaded rods, and the center lines of the threaded rods coincide. Adjacent threaded rods are threadedly connected by threaded sleeves. A winding roller is fixedly arranged in the middle of the threaded rod, and the welding strip is wound on the surface of the winding roller. One end of the threaded rod at both ends is a fixed end, and the other end is a movable end. The fixed end threaded rod is connected to the feeding platform through a fixed block, and the threaded rod at the movable end is connected to the feeding platform through a support rod. The upper ends of the support rod and the fixed block are both provided with a rotating shaft, and the rotating shaft is rotatably connected to the corresponding threaded rod. The threaded sleeve, the rotating roller and the support rod cooperate to ensure that the adjacent winding rollers are always kept at an equal distance, thereby changing the number and spacing of welding strips in the working area.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent ensures that adjacent winding rollers are always kept at equal distances through the coordination of threaded sleeves, rotating rollers and support rods, thereby changing the number and spacing of welding strips in the working area. However, it cannot quickly adjust the spacing between welding wire guide grooves, and cannot perform multi-directional calibration of battery cells while loading.

[0006] Based on this, the present invention designs a photovoltaic cell string welding machine and method that are easy to adapt to different sizes to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a photovoltaic cell string welding machine and method that are easy to adapt to different sizes.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A photovoltaic cell string welding machine that is easy to adapt to different sizes, including a frame, and also includes: a welding device, a plate feeding device and a welding strip feeding device, the welding device is installed on the left side of the frame, the plate feeding device is installed on the middle side of the frame, and the welding strip feeding device is installed on the right side of the frame. The plate feeding device includes: a hollow rotating platform, a rotating disc, a cam, a first linear module, a second linear module, a suction cup, a double-rod cylinder and a lifting mechanism. The fixed end of the hollow rotating platform is fixedly installed on the middle side of the frame, the rotating disc is fixedly installed on the output end of the hollow rotating platform, a circular opening is opened on the middle side of the rotating disc, the cam passes through the circular opening and is fixedly installed on the middle side of the frame, and the left and rear ends of the cam are fixedly installed on the left and rear ends of the cam. The side is a raised position, the first linear module is fixedly installed on the middle side of the frame through a bracket, the second linear module is fixedly installed on the output end of the first linear module, and multiple suction cups are fixedly installed on the output end of the second linear module through a bracket. The double-rod cylinder is fixedly installed on the middle side of the frame, and the lifting mechanism is installed on the left side of the rotating disc. The rotating disc has four slots on the rotating disc along the circumference of the center of the rotating disc. The double-rod cylinder is arranged at the slot position on the left side of the rotating disc. The plate feeding device also includes: a transverse alignment device and a longitudinal alignment device. The four transverse alignment devices are installed on the upper side of the rotating disc in a circular array along the central axis of the rotating disc, and the longitudinal alignment device is installed on the transverse alignment device.

[0010] Furthermore, the lateral alignment device includes: an L-shaped fixing plate, a first bracket, a first sliding rod, a lateral baffle, a first limiting plate and a first spring, the L-shaped fixing plate is fixedly mounted on the upper outer ring of the rotating disk, a plurality of the first brackets are fixedly mounted on the upper inner ring of the rotating disk, each of the first brackets is slidably connected to two first sliding rods, the lateral baffle is fixedly mounted on an end of the first sliding rod away from the center of the rotating disk, the first limiting plate is fixedly mounted on an end of the first sliding rod close to the center of the rotating disk, the first spring is arranged on the first sliding rod, one end of the first spring is close to the first bracket, and the other end of the first spring is close to the first limiting plate.

[0011] Furthermore, the lateral alignment device also includes: a pushing device, which is installed on the side wall of the lateral baffle on the left and rear sides of the rotating disk close to the center of the rotating disk, and the pushing device includes: a support frame and a guide wheel, which is fixedly installed on the side wall of the lateral baffle close to the center of the rotating disk, and a plurality of guide wheels are rotatably connected to the support frame through a rotating shaft, and the guide wheels are close to the left and rear side walls of the cam.

[0012] Furthermore, the longitudinal alignment device includes: a second bracket, a second sliding rod, a longitudinal baffle, a second limiting plate and a second spring, a plurality of the second brackets are fixedly mounted on the side wall of the transverse baffle away from the center of the rotating disk, the second sliding rod is slidably connected to the second bracket, the longitudinal baffle is fixedly mounted on one end of the second sliding rod close to the L-shaped fixed plate, the second limiting plate is fixedly mounted on one end of the second sliding rod away from the L-shaped fixed plate, the second spring is arranged on the second sliding rod, one end of the second spring is close to the second bracket, and the other end of the second spring is close to the second limiting plate.

[0013] Furthermore, the welding strip feeding device includes: a third linear module, a third bracket, a first cylinder, a first pressure plate, a fourth bracket, a second cylinder, a cutter, a third cylinder and a second pressure plate, the third linear module is fixedly installed on the right side of the frame, the third bracket is fixedly installed on the right side of the frame, the first cylinder is fixedly installed on the upper side of the third bracket, the first pressure plate is fixedly installed on the output end of the first cylinder, the fourth bracket is fixedly installed on the right side of the frame, the fourth bracket is located on the left side of the third bracket, the second cylinder is fixedly installed on the left side of the fourth bracket, the cutter is fixedly installed on the output end of the second cylinder, the third cylinder is fixedly installed on the right side of the fourth bracket, and the second pressure plate is fixedly installed on the output end of the third cylinder.

[0014] Furthermore, the welding strip feeding device also includes: an adjustable limit device, multiple adjustable limit devices are installed on the right side of the frame, the adjustable limit device includes: a fifth bracket, a guide rail, a slider, a special-shaped bracket, a reduction motor and a screw rod, the fifth bracket is fixedly installed on the right side of the frame, the fifth bracket is located on the right side of the third bracket, the guide rail is fixedly installed on the upper side of the fifth bracket, multiple sliders are slidably connected to the guide rail, the special-shaped bracket is fixedly installed on the upper side of the slider, the reduction motor is fixedly installed on the front side wall of the fifth bracket, the screw rod is fixedly connected to the output shaft of the reduction motor through a coupling, and the special-shaped bracket close to the screw rod The bracket is threadedly connected to an end of the screw rod away from the reduction motor, and the special-shaped bracket on the upper side of the slider on the middle side of the guide rail is fixedly installed on the fifth bracket, and adjacent special-shaped brackets are connected to each other by a connecting device, and the connecting device includes: a first rotating plate, a second rotating plate, a third rotating plate and a fourth rotating plate, the front sides of the first rotating plate and the second rotating plate are rotatably connected to the special-shaped bracket through a rotating shaft, and the rear sides of the third rotating plate and the fourth rotating plate are rotatably connected to the special-shaped bracket through a rotating shaft, the rear side of the first rotating plate is rotatably connected to the front side of the third rotating plate through the rotating shaft, and the rear side of the second rotating plate is rotatably connected to the front side of the fourth rotating plate through the rotating shaft.

[0015] A guide groove is arranged on the upper side of the special-shaped bracket.

[0016] Furthermore, the welding strip feeding device also includes: a fourth linear module, a fourth cylinder, a sixth bracket, a fifth cylinder and a third pressure plate, two of the fourth linear modules are fixedly installed on the middle side of the frame, the fourth cylinder is fixedly installed on the output end of the fourth linear module through the bracket, the sixth bracket is fixedly installed on the output end of the fourth cylinder, a plurality of the fifth cylinders are fixedly installed on the upper side of the sixth bracket, and the third pressure plate is fixedly installed on the output end of the fifth cylinder.

[0017] Furthermore, the welding device includes: a fifth linear module, a vacuum belt conveyor and an infrared lamp tube, two of the fifth linear modules are symmetrically fixedly installed on the middle side of the frame, the vacuum belt conveyor is fixedly installed on the left side of the frame, and multiple infrared lamp tubes are fixedly installed on the output end of the fifth linear module through a bracket.

[0018] In order to better achieve the purpose of the present invention, the present invention also provides a method for facilitating the adaptation of photovoltaic cell string welding machines of different sizes, comprising the following steps:

[0019] Step 1: The output shaft of the reduction motor rotates to drive the screw to rotate. The screw rotates so that the special-shaped bracket close to the screw can move forward and backward. The forward and backward movement of the special-shaped bracket drives the parallelogram formed by the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate to deform, so that the moving distance of each special-shaped bracket is the same, and the spacing between the welding wires is adjusted according to the specifications of the battery cell;

[0020] Step 2: stack the battery cells on one side of the L-shaped fixed plate close to the center of the rotating disk, the output end of the hollow rotating platform rotates to drive the rotating disk to rotate, the rotation of the rotating disk drives the lateral alignment device and the longitudinal alignment device to rotate, the guide wheel of the lateral alignment device on the rear side of the cam contacts the cam, so that the guide wheel moves in the direction away from the cam, the guide wheel moves in the direction away from the cam and drives the support frame to move in the direction close to the L-shaped fixed plate, the support frame moves in the direction close to the L-shaped fixed plate and drives the lateral baffle to move in the direction close to the L-shaped fixed plate, the length direction of the battery cells are aligned, the output end of the double-rod cylinder extends, the lateral alignment device and the longitudinal alignment device on the left side of the cam are triggered, the longitudinal baffle of the longitudinal alignment device contacts the output end of the double-rod cylinder, so that the longitudinal baffle moves in the direction of the L-shaped fixed plate, and the length and width directions of the battery cells are aligned;

[0021] Step 3: Then the output end of the second linear module moves downward to drive the suction cup to move downward to suck the battery cell, the output end of the second linear module moves upward to drive the suction cup and the battery cell to move upward, the output end of the first linear module moves leftward to drive the second linear module, the suction cup and the battery cell to move leftward, the output end of the second linear module moves downward to drive the suction cup to move downward to place the battery cell on the vacuum belt conveyor of the welding device;

[0022] Step 4: The welding wire is guided through the guide groove on the special-shaped bracket, the output end of the first cylinder of the welding strip feeding device moves downward to drive the first pressure plate to move downward to clamp the welding wire, the output end of the third linear module moves to the left to drive the welding wire to move to the left, the output end of the third cylinder moves downward to drive the second pressure plate to move downward to clamp the welding wire, the output end of the fourth cylinder moves downward to drive the sixth bracket to move downward, the sixth bracket moves downward to drive the fifth cylinder and the third pressure plate to move downward, the output end of the fourth linear module moves to the right so that the welding wire enters between the third pressure plate and the sixth bracket, the output end of the fifth cylinder moves downward to drive the third pressure plate to move downward to clamp the welding wire, the output end of the second cylinder moves downward to drive the cutter to move downward to cut the welding wire, the output end of the fourth cylinder moves upward to drive the sixth bracket to move upward, lift the welding wire by a preset distance, and the output end of the fourth linear module moves to the left to drive the welding wire to move to the left onto the battery cell of the vacuum belt conveyor;

[0023] Step 5: The battery cells and welding wire are laid flat on the vacuum belt conveyor of the welding device, and are slowly transported to the left by the vacuum belt conveyor. They stop at the bottom of the infrared lamp tube. The output end of the fifth linear module moves downward to drive the infrared lamp tube to move downward. The infrared lamp tube starts to weld the battery cells and welding wire. After welding for a certain period of time, the vacuum belt conveyor continues to slowly transport to the left.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention places multiple superimposed battery cells between the transverse alignment device and the longitudinal alignment device of the plate feeding device, and the output end of the hollow rotating platform rotates to drive the rotating disc to rotate, and the rotation of the rotating disc drives the transverse alignment device and the longitudinal alignment device to rotate, so that the transverse alignment device on the rear side of the cam is triggered to align the orientation of the battery cell in the length direction, so that the transverse alignment device and the longitudinal alignment device on the left side of the cam are both triggered to align the orientation of the battery cell in the length direction and the width direction, which is conducive to multi-directional alignment of the battery cell while feeding, and is convenient for subsequent standard position feeding;

[0025] 2. The output shaft of the reduction motor is rotated to drive the screw to rotate. The rotation of the screw allows the special-shaped bracket close to the screw to move forward and backward. The forward and backward movement of the special-shaped bracket drives the parallelogram formed by the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate to deform, so that the moving distance of each special-shaped bracket is the same. The spacing between the welding wires is adjusted according to the specifications of the battery cells, which is conducive to quickly adjusting the spacing between the guide grooves of the special-shaped brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 It is a front view of the present invention;

[0029] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0031] Figure 5 It is a side view of the present invention;

[0032] Figure 6 A top view of the present invention;

[0033] Figure 7 For along Figure 6 A schematic diagram of a section view in the AA direction;

[0034] Figure 8 It is a partial structural schematic diagram of the welding strip feeding device of the present invention;

[0035] Fig. 9 A top view of a partial structural schematic diagram of a welding strip feeding device of the present invention;

[0036] Fig.10 is a schematic structural diagram of a sixth bracket of the present invention;

[0037] Fig.11 It is a partial structural schematic diagram of the plate material feeding device of the present invention;

[0038] Fig.12 It is a partial structural schematic diagram of the plate feeding device of the present invention in the un-clamped and aligned state;

[0039] Fig.13 It is a partial structural schematic diagram of the plate feeding device of the present invention, showing the clamping and alignment state.

[0040] The numbers in the figure represent:

[0041] 1. Frame; 2. Welding device; 21. Fifth linear module; 22. Vacuum belt conveyor; 23. Infrared lamp; 3. Plate feeding device; 31. Hollow rotating platform; 32. Rotating disc; 33. Cam; 34. First linear module; 35. Second linear module; 36. Suction cup; 37. Double-rod cylinder; 38. L-shaped fixing plate; 39. First bracket; 310. First sliding rod; 311. Horizontal baffle; 312. First limiting plate; 313. First spring; 314. Support frame; 315. Guide wheel; 316. Second bracket; 317. Second sliding rod; 318. Longitudinal baffle; 319. Second limiting plate; 320. Second spring ;321, lifting mechanism;4, welding strip feeding device;41, third linear module;42, third bracket;43, first cylinder;44, first pressure plate;45, fourth bracket;46, second cylinder;47, cutter;48, third cylinder;49, second pressure plate;410, fifth bracket;411, guide rail;412, slider;413, special-shaped bracket;414, reduction motor;415, screw rod;416, first rotating plate;417, second rotating plate;418, third rotating plate;419, fourth rotating plate;420, fourth linear module;421, fourth cylinder;422, sixth bracket;423, fifth cylinder;424, third pressure plate. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0043] The present invention will be further described below in conjunction with the embodiments.

[0044] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0045] Embodiment 1: In some embodiments, please refer to Figure 1-Figure 13A photovoltaic cell string welding machine that is easy to adapt to different sizes includes a frame 1, and also includes: a welding device 2, a plate feeding device 3 and a welding strip feeding device 4, the welding device 2 is installed on the left side of the frame 1, the plate feeding device 3 is installed on the middle side of the frame 1, and the welding strip feeding device 4 is installed on the right side of the frame 1. The plate feeding device 3 includes: a hollow rotating platform 31, a rotating disc 32, a cam 33, a first linear module 34, a second linear module 35, a suction cup 36, a double-rod cylinder 37 and a lifting mechanism 321. The fixed end of the hollow rotating platform 31 is fixedly installed on the middle side of the frame 1, the rotating disc 32 is fixedly installed on the output end of the hollow rotating platform 31, a circular opening is opened on the middle side of the rotating disc 32, and the cam 33 passes through the circular opening and is fixedly installed on the middle side of the frame 1. The left and rear sides of the cam 33 are raised positions The first linear module 34 is fixedly mounted on the middle side of the frame 1 through a bracket, the second linear module 35 is fixedly mounted on the output end of the first linear module 34, and the plurality of suction cups 36 are fixedly mounted on the output end of the second linear module 35 through a bracket. The double-rod cylinder 37 is fixedly mounted on the middle side of the frame 1. The lifting mechanism 321 is mounted on the left side of the rotating disc 32. The rotating disc 32 has four slots on the rotating disc 32 along the circumferential array of the center of the rotating disc 32. The double-rod cylinder 37 is arranged at the slot position on the left side of the rotating disc 32. The plate feeding device 3 also includes: a transverse alignment device and a longitudinal alignment device. The four transverse alignment devices are mounted on the upper side of the rotating disc 32 in a circular array along the central axis of the rotating disc 32. The longitudinal alignment device is mounted on the transverse alignment device. The lifting mechanism 321 can be set as a ball screw lifting mechanism.

[0046] The plate feeding device 3 feeds the battery cells, the welding strip feeding device 4 feeds the welding wire, and the welding device 2 welds the battery cells together through the welding wire.

[0047] Multiple stacked battery cells are placed between the transverse alignment device and the longitudinal alignment device of the plate feeding device 3. The output end of the hollow rotating platform 31 rotates to drive the rotating disc 32 to rotate. The rotation of the rotating disc 32 drives the transverse alignment device and the longitudinal alignment device to rotate. The left and rear sides of the cam 33 are raised positions, so that the transverse alignment device on the rear side of the cam 33 is triggered to align the orientation of the battery cell in the length direction, so that the transverse alignment device and the longitudinal alignment device on the left side of the cam 33 are both triggered to align the orientation of the battery cell in the length direction and width direction. Then the output end of the second linear module 35 moves downward to drive the suction cup 36 to The battery cell is sucked up by the lifting mechanism 321 intermittently lifting the battery cell, the output end of the second linear module 35 moves upward to drive the suction cup 36 and the battery cell upward, the output end of the first linear module 34 moves to the left to drive the second linear module 35, the suction cup 36 and the battery cell to move to the left, the output end of the second linear module 35 moves downward to drive the suction cup 36 downward to place the battery cell on the welding device 2, the welding strip feeding device 4 feeds the welding wire, and the welding device 2 welds the battery cells together through the welding wire, which is conducive to multi-directional alignment of the battery cells while feeding, and is convenient for subsequent standard position feeding.

[0048] The lateral alignment device includes: an L-shaped fixing plate 38, a first bracket 39, a first sliding rod 310, a lateral baffle 311, a first limiting plate 312 and a first spring 313. The L-shaped fixing plate 38 is fixedly mounted on the upper outer ring of the rotating disk 32, and multiple first brackets 39 are fixedly mounted on the upper inner ring of the rotating disk 32. Two first sliding rods 310 are slidably connected to each of the first brackets 39. The lateral baffle 311 is fixedly mounted on an end of the first sliding rod 310 away from the center of the rotating disk 32. The first limiting plate 312 is fixedly mounted on an end of the first sliding rod 310 close to the center of the rotating disk 32. The first spring 313 is arranged on the first sliding rod 310, one end of the first spring 313 is close to the first bracket 39, and the other end of the first spring 313 is close to the first limiting plate 312.

[0049] The transverse baffle 311 of the transverse alignment device moves toward the L-shaped fixing plate 38 to align the lengthwise direction of the battery cells, and the first spring 313 undergoes elastic deformation.

[0050] The lateral alignment device also includes: a pushing device, which is installed on the side wall of the lateral baffle 311 on the left and rear sides of the rotating disk 32 close to the center of the rotating disk 32, and the pushing device includes: a support frame 314 and a guide wheel 315, the support frame 314 is fixedly installed on the side wall of the lateral baffle 311 close to the center of the rotating disk 32, and multiple guide wheels 315 are rotatably connected to the support frame 314 through a rotating shaft, and the guide wheels 315 are close to the left and rear side walls of the cam 33.

[0051] The guide wheel 315 contacts the cam 33 , causing the guide wheel 315 to move away from the cam 33 . The guide wheel 315 moves away from the cam 33 , driving the support frame 314 to move away from the cam 33 . The support frame 314 moves away from the cam 33 , driving the transverse baffle 311 to move away from the cam 33 .

[0052] The longitudinal alignment device includes: a second bracket 316, a second sliding rod 317, a longitudinal baffle 318, a second limiting plate 319 and a second spring 320. Multiple second brackets 316 are fixedly mounted on the side wall of the transverse baffle 311 away from the center of the rotating disk 32. The second sliding rod 317 is slidably connected to the second bracket 316. The longitudinal baffle 318 is fixedly mounted on one end of the second sliding rod 317 close to the L-shaped fixing plate 38. The second limiting plate 319 is fixedly mounted on one end of the second sliding rod 317 away from the L-shaped fixing plate 38. The second spring 320 is arranged on the second sliding rod 317. One end of the second spring 320 is close to the second bracket 316, and the other end of the second spring 320 is close to the second limiting plate 319.

[0053] The output end of the double-rod cylinder 37 is extended, and the longitudinal baffle 318 of the longitudinal alignment device contacts the output end of the double-rod cylinder 37, so that the longitudinal baffle 318 moves toward the L-shaped fixing plate 38, and the second spring 320 undergoes elastic deformation to align the width direction of the battery cell.

[0054] Embodiment 2: In some embodiments, Figure 1-Figure 13 As shown, as a preferred embodiment of the present invention, the welding strip feeding device 4 includes: a third linear module 41, a third bracket 42, a first cylinder 43, a first pressure plate 44, a fourth bracket 45, a second cylinder 46, a cutter 47, a third cylinder 48 and a second pressure plate 49, the third linear module 41 is fixedly installed on the right side of the frame 1, the third bracket 42 is fixedly installed on the right side of the frame 1, the first cylinder 43 is fixedly installed on the upper side of the third bracket 42, the first pressure plate 44 is fixedly installed at the output end of the first cylinder 43, the fourth bracket 45 is fixedly installed on the right side of the frame 1, the fourth bracket 45 is located on the left side of the third bracket 42, the second cylinder 46 is fixedly installed on the left side of the fourth bracket 45, the cutter 47 is fixedly installed on the output end of the second cylinder 46, the third cylinder 48 is fixedly installed on the right side of the fourth bracket 45, and the second pressure plate 49 is fixedly installed at the output end of the third cylinder 48.

[0055] The output end of the first cylinder 43 of the welding strip feeding device 4 moves downward, driving the first pressure plate 44 to move downward to clamp the welding wire, the output end of the third linear module 41 moves to the left, driving the welding wire to move to the left, the output end of the third cylinder 48 moves downward, driving the second pressure plate 49 to move downward to clamp the welding wire, and the output end of the second cylinder 46 moves downward, driving the cutter 47 to move downward to cut the welding wire to a suitable length.

[0056] The welding strip feeding device 4 also includes: an adjustable limit device, multiple adjustable limit devices are installed on the right side of the frame 1, and the adjustable limit device includes: a fifth bracket 410, a guide rail 411, a slider 412, a special-shaped bracket 413, a reduction motor 414 and a screw rod 415. The fifth bracket 410 is fixedly installed on the right side of the frame 1, and the fifth bracket 410 is located on the right side of the third bracket 42. The guide rail 411 is fixedly installed on the upper side of the fifth bracket 410. Multiple sliders 412 are slidably connected to the guide rail 411, and the special-shaped bracket 413 is fixedly installed on the upper side of the slider 412. The reduction motor 414 is fixedly installed on the front side wall of the fifth bracket 410. The screw rod 415 is fixedly connected to the output shaft of the reduction motor 414 through a coupling. The special-shaped bracket 413 screw near the screw rod 415 The thread is connected to one end of the screw rod 415 away from the reduction motor 414, and the special-shaped bracket 413 on the upper side of the slider 412 on the middle side of the guide rail 411 is fixedly installed on the fifth bracket 410, and the adjacent special-shaped brackets 413 are connected to each other by a connecting device, and the connecting device includes: a first rotating plate 416, a second rotating plate 417, a third rotating plate 418 and a fourth rotating plate 419, the front sides of the first rotating plate 416 and the second rotating plate 417 are rotatably connected to the special-shaped bracket 413 through a rotating shaft, and the rear sides of the third rotating plate 418 and the fourth rotating plate 419 are rotatably connected to the special-shaped bracket 413 through a rotating shaft, the rear side of the first rotating plate 416 is rotatably connected to the front side of the third rotating plate 418 through a rotating shaft, and the rear side of the second rotating plate 417 is rotatably connected to the front side of the fourth rotating plate 419 through a rotating shaft.

[0057] The upper side of the special-shaped bracket 413 is provided with a guide groove for guiding the welding wire.

[0058] The output shaft of the reduction motor 414 rotates to drive the screw rod 415 to rotate. The rotation of the screw rod 415 allows the special-shaped bracket 413 close to the screw rod 415 to move forward and backward. The forward and backward movement of the special-shaped bracket 413 drives the parallelogram formed by the first rotating plate 416, the second rotating plate 417, the third rotating plate 418 and the fourth rotating plate 419 to deform, so that the moving distance of each special-shaped bracket 413 is the same, which is conducive to quickly adjusting the spacing between the guide grooves of the special-shaped bracket 413.

[0059] The welding strip feeding device 4 also includes: a fourth linear module 420, a fourth cylinder 421, a sixth bracket 422, a fifth cylinder 423 and a third pressure plate 424. The two fourth linear modules 420 are fixedly installed on the middle side of the frame 1, the fourth cylinder 421 is fixedly installed on the output end of the fourth linear module 420 through a bracket, the sixth bracket 422 is fixedly installed on the output end of the fourth cylinder 421, and multiple fifth cylinders 423 are fixedly installed on the upper side of the sixth bracket 422. The third pressure plate 424 is fixedly installed on the output end of the fifth cylinder 423.

[0060] The left and right sides of the sixth bracket 422 are both provided with adjustable limit devices.

[0061] The output end of the fourth cylinder 421 moves downward, driving the sixth bracket 422 to move downward, the sixth bracket 422 moves downward, driving the fifth cylinder 423 and the third pressure plate 424 to move downward, the output end of the fourth linear module 420 moves to the right so that the welding wire enters between the third pressure plate 424 and the sixth bracket 422, the output end of the fifth cylinder 423 moves downward, driving the third pressure plate 424 to move downward, clamping the cut welding wire, the output end of the fourth cylinder 421 moves upward, driving the sixth bracket 422 to move upward, lifting the welding wire a preset distance, and the output end of the fourth linear module 420 moves to the left, driving the welding wire to move left to the position of the welding device 2.

[0062] The welding device 2 includes: a fifth linear module 21, a vacuum belt conveyor 22 and an infrared lamp tube 23. The two fifth linear modules 21 are symmetrically fixedly installed on the middle side of the frame 1, the vacuum belt conveyor 22 is fixedly installed on the left side of the frame 1, and the multiple infrared lamp tubes 23 are fixedly installed on the output end of the fifth linear module 21 through a bracket.

[0063] The battery cells and welding wire are laid flat on the vacuum belt conveyor 22 of the welding device 2, and are slowly conveyed to the left by the vacuum belt conveyor 22, and stop at the bottom of the infrared lamp tube 23. The output end of the fifth linear module 21 moves downward to drive the infrared lamp tube 23 to move downward, and the infrared lamp tube 23 starts to weld the battery cells and welding wire. After welding for a certain period of time, the vacuum belt conveyor 22 continues to convey slowly to the left.

[0064] Embodiment 3: In some embodiments, Figure 1-Figure 13 As shown, as a preferred embodiment of the present invention, a method for facilitating adaptation of photovoltaic cell string welding machines of different sizes comprises the following steps:

[0065] Step 1: The output shaft of the reduction motor 414 rotates to drive the screw rod 415 to rotate. The screw rod 415 rotates so that the special-shaped bracket 413 close to the screw rod 415 can move forward and backward. The special-shaped bracket 413 moves forward and backward to drive the parallelogram formed by the first rotating plate 416, the second rotating plate 417, the third rotating plate 418 and the fourth rotating plate 419 to deform, so that each special-shaped bracket 413 moves the same distance, and the spacing between the welding wires is adjusted according to the specifications of the battery cell;

[0066] Step 2: Stack the battery cells on one side of the L-shaped fixed plate 38 close to the center of the rotating disc 32. The output end of the hollow rotating platform 31 rotates to drive the rotating disc 32 to rotate. The rotation of the rotating disc 32 drives the lateral alignment device and the longitudinal alignment device to rotate. The guide wheel 315 of the lateral alignment device on the rear side of the cam 33 contacts the cam 33, so that the guide wheel 315 moves away from the cam 33. The guide wheel 315 moves away from the cam 33 and drives the support frame 314 to move toward the L-shaped fixed plate 38. , the support frame 314 moves toward the direction close to the L-shaped fixing plate 38, driving the transverse baffle 311 to move toward the direction close to the L-shaped fixing plate 38, aligning the length direction of the battery cell, the output end of the double-rod cylinder 37 extends, and the transverse alignment device and the longitudinal alignment device on the left side of the cam 33 are triggered. The longitudinal baffle 318 of the longitudinal alignment device contacts the output end of the double-rod cylinder 37, so that the longitudinal baffle 318 moves toward the L-shaped fixing plate 38, aligning the length direction and width direction of the battery cell;

[0067] Step 3: Then the output end of the second linear module 35 moves downward to drive the suction cup 36 to move downward to suck the battery cell, the output end of the second linear module 35 moves upward to drive the suction cup 36 and the battery cell to move upward, the output end of the first linear module 34 moves leftward to drive the second linear module 35, the suction cup 36 and the battery cell to move leftward, the output end of the second linear module 35 moves downward to drive the suction cup 36 to move downward to place the battery cell on the vacuum belt conveyor 22 of the welding device 2;

[0068] Step 4: The welding wire is guided through the guide groove on the special-shaped bracket 413, the output end of the first cylinder 43 of the welding strip feeding device 4 moves downward to drive the first pressing plate 44 to move downward to clamp the welding wire, the output end of the third linear module 41 moves to the left to drive the welding wire to move to the left, the output end of the third cylinder 48 moves downward to drive the second pressing plate 49 to move downward to clamp the welding wire, the output end of the fourth cylinder 421 moves downward to drive the sixth bracket 422 to move downward, the sixth bracket 422 moves downward to drive the fifth cylinder 423 and the third pressing plate 424 to move downward, and the third linear module 41 moves to the left to drive the welding wire to move to the left, and the output end of the third cylinder 48 moves downward to drive the second pressing plate 49 to move downward to clamp the welding wire. The output end of the fourth linear module 420 moves to the right so that the welding wire enters between the third pressure plate 424 and the sixth bracket 422, the output end of the fifth cylinder 423 moves downward to drive the third pressure plate 424 to move downward to clamp the welding wire, the output end of the second cylinder 46 moves downward to drive the cutter 47 to move downward to cut the welding wire, the output end of the fourth cylinder 421 moves upward to drive the sixth bracket 422 to move upward to lift the welding wire by a preset distance, and the output end of the fourth linear module 420 moves to the left to drive the welding wire to move to the left onto the battery sheet of the vacuum belt conveyor 22;

[0069] Step 5: The battery cells and welding wire are laid flat on the vacuum belt conveyor 22 of the welding device 2, and are slowly conveyed to the left by the vacuum belt conveyor 22, and stop at the bottom of the infrared lamp tube 23. The output end of the fifth linear module 21 moves downward to drive the infrared lamp tube 23 to move downward. The infrared lamp tube 23 starts to weld the battery cells and welding wire. After welding for a certain period of time, the vacuum belt conveyor 22 continues to convey slowly to the left.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A photovoltaic cell string welding machine that is easily adapted to different sizes, comprising a frame (1), characterized in that: Also includes: A welding device (2), a plate feeding device (3) and a welding strip feeding device (4), wherein the welding device (2) is mounted on the left side of a frame (1), the plate feeding device (3) is mounted on the middle side of the frame (1), and the welding strip feeding device (4) is mounted on the right side of the frame (1), the plate feeding device (3) comprises: a hollow rotating platform (31), a rotating disc (32), a cam (33), a first linear module (34), a second linear module (35), a suction cup (36), a double-rod cylinder (37) and a lifting mechanism (321), the fixed end of the hollow rotating platform (31) is fixedly mounted on the middle side of the frame (1), the rotating disc (32) is fixedly mounted on the output end of the hollow rotating platform (31), a circular opening is opened on the middle side of the rotating disc (32), the cam (33) passes through the circular opening and is fixedly mounted on the middle side of the frame (1), and the left and rear sides of the cam (33) are The first linear module (34) is fixedly mounted on the middle side of the frame (1) through a bracket, the second linear module (35) is fixedly mounted on the output end of the first linear module (34), a plurality of suction cups (36) are fixedly mounted on the output end of the second linear module (35) through a bracket, the double-rod cylinder (37) is fixedly mounted on the middle side of the frame (1), the lifting mechanism (321) is mounted on the left side of the rotating disc (32), the rotating disc (32) has four slots in a circular array along the center of the rotating disc (32), the double-rod cylinder (37) is arranged at the slot position on the left side of the rotating disc (32), and the plate feeding device (3) also includes: a transverse alignment device and a longitudinal alignment device, the four transverse alignment devices are mounted on the upper side of the rotating disc (32) in a circular array along the central axis of the rotating disc (32), and the longitudinal alignment device is mounted on the transverse alignment device.

2. The photovoltaic cell string welding machine that is easy to adapt to different sizes according to claim 1 is characterized in that: The transverse alignment device comprises: an L-shaped fixing plate (38), a first bracket (39), a first sliding rod (310), a transverse baffle (311), a first limiting plate (312) and a first spring (313); the L-shaped fixing plate (38) is fixedly mounted on the upper outer ring of the rotating disk (32); a plurality of the first brackets (39) are fixedly mounted on the upper inner ring of the rotating disk (32); two first sliding rods (310) are slidably connected to each of the first brackets (39); the transverse baffle (311) is fixedly mounted on an end of the first sliding rod (310) away from the center of the rotating disk (32); the first limiting plate (312) is fixedly mounted on an end of the first sliding rod (310) close to the center of the rotating disk (32); the first spring (313) is arranged on the first sliding rod (310); one end of the first spring (313) is in close contact with the first bracket (39); and the other end of the first spring (313) is in close contact with the first limiting plate (312).

3. The photovoltaic cell string welding machine that is easy to adapt to different sizes according to claim 2 is characterized in that: The lateral alignment device also includes: a pushing device, the pushing device is installed on the side wall of the lateral baffle (311) on the left side and rear side of the rotating disc (32) close to the center of the rotating disc (32), the pushing device includes: a support frame (314) and a guide wheel (315), the support frame (314) is fixedly installed on the side wall of the lateral baffle (311) close to the center of the rotating disc (32), a plurality of guide wheels (315) are rotatably connected to the support frame (314) via a rotating shaft, and the guide wheels (315) are closely attached to the left side and rear side walls of the cam (33).

4. The photovoltaic cell string welding machine that is easy to adapt to different sizes according to claim 3 is characterized in that: The longitudinal alignment device comprises: a second bracket (316), a second sliding rod (317), a longitudinal baffle (318), a second limiting plate (319) and a second spring (320), wherein a plurality of the second brackets (316) are fixedly mounted on the side wall of the transverse baffle (311) away from the center of the rotating disk (32), the second sliding rod (317) is slidably connected to the second bracket (316), the longitudinal baffle (318) is fixedly mounted on one end of the second sliding rod (317) close to the L-shaped fixing plate (38), the second limiting plate (319) is fixedly mounted on one end of the second sliding rod (317) away from the L-shaped fixing plate (38), and the second spring (320) is arranged on the second sliding rod (317), one end of the second spring (320) is in close contact with the second bracket (316), and the other end of the second spring (320) is in close contact with the second limiting plate (319).

5. The photovoltaic cell string welding machine that is easy to adapt to different sizes according to claim 4 is characterized in that: The welding strip feeding device (4) comprises: a third linear module (41), a third bracket (42), a first cylinder (43), a first pressing plate (44), a fourth bracket (45), a second cylinder (46), a cutter (47), a third cylinder (48) and a second pressing plate (49), wherein the third linear module (41) is fixedly mounted on the right side of the frame (1), the third bracket (42) is fixedly mounted on the right side of the frame (1), the first cylinder (43) is fixedly mounted on the upper side of the third bracket (42), and the first The pressing plate (44) is fixedly mounted on the output end of the first cylinder (43), the fourth bracket (45) is fixedly mounted on the right side of the frame (1), the fourth bracket (45) is located on the left side of the third bracket (42), the second cylinder (46) is fixedly mounted on the left side of the fourth bracket (45), the cutter (47) is fixedly mounted on the output end of the second cylinder (46), the third cylinder (48) is fixedly mounted on the right side of the fourth bracket (45), and the second pressing plate (49) is fixedly mounted on the output end of the third cylinder (48).

6. The photovoltaic cell string welding machine that is easily adaptable to different sizes according to claim 5, characterized in that: The welding strip feeding device (4) further comprises: an adjustable limit device, a plurality of the adjustable limit devices are mounted on the right side of the frame (1), the adjustable limit devices comprising: a fifth bracket (410), a guide rail (411), a slider (412), a special-shaped bracket (413), a reduction motor (414) and a screw rod (415), the fifth bracket (410) being fixedly mounted on the right side of the frame (1), the fifth bracket (410) being located on the right side of the third bracket (42), the guide rail (411) being fixedly mounted on the upper side of the fifth bracket (410), a plurality of the sliders (412) being slidably connected to the guide rail (411), the special-shaped bracket (413) being fixedly mounted on the upper side of the slider (412), the reduction motor (414) being fixedly mounted on the front side wall of the fifth bracket (410), the screw rod (415) being fixedly connected to the output shaft of the reduction motor (414) through a coupling, and the special-shaped bracket (413) close to the screw rod (415) 3) is threadedly connected to one end of the screw rod (415) away from the reduction motor (414), and the upper side special-shaped bracket (413) of the slider (412) on the middle side of the guide rail (411) is fixedly installed on the fifth bracket (410), and the adjacent special-shaped brackets (413) are connected to each other through a connecting device, and the connecting device includes: a first rotating plate (416), a second rotating plate (417), a third rotating plate (418) and a fourth rotating plate (419), the front sides of the first rotating plate (416) and the second rotating plate (417) are both rotatably connected to the special-shaped bracket (413) through a rotating shaft, and the rear sides of the third rotating plate (418) and the fourth rotating plate (419) are both rotatably connected to the special-shaped bracket (413) through a rotating shaft, the rear side of the first rotating plate (416) is rotatably connected to the front side of the third rotating plate (418) through a rotating shaft, and the rear side of the second rotating plate (417) is rotatably connected to the front side of the fourth rotating plate (419) through a rotating shaft.

7. The photovoltaic cell string welding machine that is easily adaptable to different sizes according to claim 6, characterized in that: The welding strip feeding device (4) also includes: a fourth linear module (420), a fourth cylinder (421), a sixth bracket (422), a fifth cylinder (423) and a third pressure plate (424), two of the fourth linear modules (420) are fixedly mounted on the middle side of the frame (1), the fourth cylinder (421) is fixedly mounted on the output end of the fourth linear module (420) through a bracket, the sixth bracket (422) is fixedly mounted on the output end of the fourth cylinder (421), a plurality of the fifth cylinders (423) are fixedly mounted on the upper side of the sixth bracket (422), and the third pressure plate (424) is fixedly mounted on the output end of the fifth cylinder (423).

8. The photovoltaic cell string welding machine that is easily adaptable to different sizes according to claim 7, characterized in that: The welding device (2) comprises: a fifth linear module (21), a vacuum belt conveyor (22) and an infrared lamp tube (23); two of the fifth linear modules (21) are fixedly mounted on the middle side of a frame (1) in a front-to-back symmetrical manner; the vacuum belt conveyor (22) is fixedly mounted on the left side of the frame (1); and a plurality of the infrared lamp tubes (23) are fixedly mounted on the output end of the fifth linear module (21) via a bracket.

9. A method for facilitating adaptation of photovoltaic cell stringing machines of different sizes, used for the photovoltaic cell stringing machine of claim 8, characterized in that: The following steps are involved: Step 1: The output shaft of the reduction motor (414) rotates to drive the screw rod (415) to rotate. The screw rod (415) rotates so that the special-shaped bracket (413) close to the screw rod (415) can move forward and backward. The special-shaped bracket (413) moves forward and backward to drive the parallelogram formed by the first rotating plate (416), the second rotating plate (417), the third rotating plate (418) and the fourth rotating plate (419) to deform, so that the moving distance of each special-shaped bracket (413) is the same, and the spacing between the welding wires is adjusted according to the specifications of the battery cell; Step 2: stack the battery cells on one side of the L-shaped fixing plate (38) close to the center of the rotating disc (32), the output end of the hollow rotating platform (31) rotates to drive the rotating disc (32), the rotating disc (32) rotates to drive the lateral alignment device and the longitudinal alignment device to rotate, the guide wheel (315) of the lateral alignment device on the rear side of the cam (33) contacts the cam (33), so that the guide wheel (315) moves in a direction away from the cam (33), and the guide wheel (315) moves in a direction away from the cam (33), driving the support frame (314) toward the L-shaped fixing plate (38). The support frame (314) moves in a direction close to the L-shaped fixing plate (38), driving the transverse baffle (311) to move in a direction close to the L-shaped fixing plate (38), aligning the length direction of the battery sheet, the output end of the double-rod cylinder (37) extends, the transverse alignment device and the longitudinal alignment device on the left side of the cam (33) are triggered, and the longitudinal baffle (318) of the longitudinal alignment device contacts the output end of the double-rod cylinder (37), so that the longitudinal baffle (318) moves in a direction close to the L-shaped fixing plate (38), aligning the length direction and width direction of the battery sheet; Step 3: Then the output end of the second linear module (35) moves downward to drive the suction cup (36) to move downward to suck up the battery cell, the lifting mechanism (321) lifts the battery cell intermittently, the output end of the second linear module (35) moves upward to drive the suction cup (36) and the battery cell to move upward, the output end of the first linear module (34) moves leftward to drive the second linear module (35), the suction cup (36) and the battery cell to move leftward, the output end of the second linear module (35) moves downward to drive the suction cup (36) to move downward to place the battery cell on the vacuum belt conveyor (22) of the welding device (2); Step 4: The welding wire is guided through the guide groove on the special-shaped bracket (413), the output end of the first cylinder (43) of the welding strip feeding device (4) moves downward to drive the first pressing plate (44) to move downward to clamp the welding wire, the output end of the third linear module (41) moves leftward to drive the welding wire to move leftward, the output end of the third cylinder (48) moves downward to drive the second pressing plate (49) to move downward to clamp the welding wire, the output end of the fourth cylinder (421) moves downward to drive the sixth bracket (422) to move downward, the sixth bracket (422) moves downward to drive the fifth cylinder (423) and the third pressing plate (424) to move downward, The output end of the fourth linear module (420) moves to the right so that the welding wire enters between the third pressure plate (424) and the sixth bracket (422); the output end of the fifth cylinder (423) moves downward to drive the third pressure plate (424) to move downward to clamp the welding wire; the output end of the second cylinder (46) moves downward to drive the cutter (47) to move downward to cut the welding wire; the output end of the fourth cylinder (421) moves upward to drive the sixth bracket (422) to move upward to lift the welding wire by a preset distance; the output end of the fourth linear module (420) moves to the left to drive the welding wire to move to the left onto the battery sheet of the vacuum belt conveyor (22); Step 5: The battery cells and welding wire are laid flat on the vacuum belt conveyor (22) of the welding device (2), and are slowly conveyed to the left by the vacuum belt conveyor (22), and stop at the lower side of the infrared lamp tube (23). The output end of the fifth linear module (21) moves downward to drive the infrared lamp tube (23) to move downward. The infrared lamp tube (23) starts to weld the battery cells and welding wire. After welding for a certain period of time, the vacuum belt conveyor (22) continues to slowly convey to the left.

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