Solder strip correcting mechanism and welding machine

Abstract

The utility model belongs to the field of photovoltaic technology, and discloses a welding strip correcting mechanism and a welding machine. The welding strip correcting mechanism comprises a driving assembly and a correcting piece. The correcting piece is in transmission connection with the driving assembly, a mounting hole is coaxially formed in the correcting piece, a first guide part and a second guide part are fixedly arranged in the mounting hole, the first guide part is coaxially and fixedly arranged in the mounting hole, a first guide hole is formed in the first guide part, and the inner diameter of the first guide hole is not larger than a first set size; the second guide part is coaxially and fixedly arranged in the first guide hole, the second guide part comprises two correction bodies which are symmetrically arranged relative to the axis of the correction piece, each correction body is in an arc shape, and the central angle of each correction body is not larger than 150 degrees; when the correcting piece is in the first state, each correcting body is symmetrically arranged relative to the horizontal plane; when the driving assembly drives the correcting piece to rotate around the axis of the correcting piece to the second state, all the correcting bodies are symmetrically arranged relative to the vertical face. According to the utility model, the erected solder strip can be rotated to a safe state.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a welding strip correction mechanism and a welding machine. Background Art

[0002] Photovoltaic cells are energy converters for solar photovoltaic power generation.

[0003] TOPCON solar cells are solar cells that use an ultra-thin tunnel oxide layer as a passivation layer. TOPCON solar cells use round wire ribbons. After the round wire ribbons are delivered to the welding machine, the welding machine introduces the ribbon flattening process to flatten the round wire ribbons. In order to prevent the flattened ribbons from standing up, the welding machine is generally equipped with a secondary stretching function.

[0004] However, it takes more than 0.1 seconds to realize the secondary stretching of the flattened solder strip. In order to improve production efficiency, the secondary stretching function needs to be turned off. After the secondary stretching function is turned off, since the flattened solder strip is not fixed, the flattened solder strip is in a relaxed state. It will be stressed and rotated during the movement, causing the flattened solder strip to stand on the battery cell. When the flattened solder strip stands on the battery cell, it will cause batch cracking defects after lamination.

[0005] Therefore, there is an urgent need for a welding strip correction mechanism and a welding machine to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a welding strip correction mechanism, which can avoid the technical problem that after the welding strip is flattened, the welding strip is transported to the photovoltaic module in an upright state, resulting in batch cracking defects after lamination.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] Welding strip correction mechanism, including:

[0009] Drive components;

[0010] A correction member, which is transmission-connected with the driving assembly, wherein a mounting hole is coaxially arranged in the correction member, wherein a first guide portion and a second guide portion are fixedly arranged in the mounting hole, wherein the first guide portion is coaxially fixed in the mounting hole, wherein a first guide hole is arranged in the first guide portion, wherein an inner diameter of the first guide hole is not greater than a first set size, wherein the second guide portion is coaxially fixed in the first guide hole, wherein the second guide portion comprises two correction bodies symmetrically arranged relative to an axis of the correction member, wherein each of the correction bodies is in an arc shape and a central angle of each of the correction bodies is not greater than 150°, wherein an inner diameter of each of the correction bodies is not greater than a second set size, and wherein the second set size is smaller than the first set size;

[0011] When the correcting member is in the first state, the two correcting bodies are arranged at a relative interval left and right; when the driving assembly drives the correcting member to rotate around its own axis to the second state, the two correcting bodies are arranged at a relative interval up and down.

[0012] Optionally, the correcting member further includes a connecting rib, one end of which is fixedly connected to the inner wall of the mounting hole, and the other end of which passes through the first guide portion and is fixedly connected to the free end of the correcting body.

[0013] Optionally, the correction member includes four connecting ribs, and each correction body is correspondingly provided with two connecting ribs.

[0014] Optionally, the driving assembly comprises:

[0015] Driving parts;

[0016] The actuating member is transmission-connected with the driving member, the actuating member is provided with a first meshing tooth, and the outer surface of the correcting member is provided with a second meshing tooth. The driving member can drive the actuating member to perform reciprocating linear motion, and the first meshing tooth can mesh with the second meshing tooth for transmission and drive the correcting member to rotate around its own axis.

[0017] Optionally, the driving assembly also includes a right-angle reversing connecting rod, which includes a first rod body and a second rod body that are vertically fixed, the output end of the driving member is hinged to the free end of the first rod body, and the actuating member is hinged to the free end of the second rod body, and the driving member can drive the right-angle reversing connecting rod to rotate around the connection between the first rod body and the second rod body.

[0018] Optionally, the output end of the driving member is fixedly connected to a connecting rod, and the connecting rod is hinged to the free end of the first rod body.

[0019] Optionally, the welding strip correction mechanism further includes a guide member, which is slidably matched with the actuating member and can drive the actuating member to reciprocate in a linear direction.

[0020] Optionally, there are multiple correcting members, which are arranged in sequence along a straight line direction, and the driving assembly is transmission-connected to each of the correcting members to drive the multiple correcting members to move synchronously.

[0021] Optionally, the correction member includes:

[0022] The correction member body is in a cylindrical structure, and the mounting hole is arranged through the correction member body;

[0023] A connecting ring, fixedly arranged on the end surface of the correction member body;

[0024] The welding strip correction mechanism also includes a fixed connecting rod, and the fixed connecting rod is rotatably connected to the connecting ring of each correction member.

[0025] The welding machine includes a welding strip flattening mechanism and the above-mentioned welding strip correcting mechanism, wherein the welding strip correcting mechanism is arranged adjacent to the welding strip flattening mechanism.

[0026] Beneficial effects of the utility model:

[0027] When the welding strip correction mechanism provided by the utility model is used, it is installed at the next station of the welding strip flattening mechanism of the welding machine. After the welding strip flattening mechanism flattens the round wire welding strip, the flattened welding strip passes through the welding strip correction mechanism, and the welding strip correction mechanism can correct the standing welding strip so that the welding strip is in a safe state. The diameter of the round wire welding strip is not greater than 0.3mm, and the width of the flattened welding strip is not greater than 0.6mm. Accordingly, the first set size is set to 0.6mm; the second set size is set to 0.3mm. In the initial state, the correction member is in the first state; at this time, the welding strip passes through the second guide hole roughly surrounded by the two correction bodies, and the circular welding strip that is not flattened can pass through the second guide hole smoothly. After the flattened welding strip stands up, it passes through the first guide hole and stands up, and the upper and lower ends of the standing welding strip are just located at the notches on the upper and lower sides respectively. That is, after the welding strip is flattened, it is easy to stand up. Since the width of the flattened welding strip is greater than the second set size, the standing welding strip is in the first guide hole, and the side of the standing welding strip is just opposite to the end of the correction piece. Specifically: the two sides of the upper end of the standing welding strip are respectively opposite to the upper ends of the two correction pieces; the two sides of the lower end of the standing welding strip are respectively opposite to the lower ends of the two correction pieces. At this time, the driving assembly drives the correction piece to rotate around its own axis to the second state. During the rotation of the correction body, the free end of the correction body will abut against the side of the welding strip and drive the welding strip to rotate. At this time, the two notches of the second guide hole are also rotated to the left and right relative settings, so that the standing welding strip is rotated to a safe state, avoiding batch cracking defects caused by the standing welding strip during subsequent lamination.

[0028] The welding machine provided by the utility model comprises the above-mentioned welding strip correction mechanism, which can rotate the erected welding strip to a safe state, thereby avoiding batch splitting defects caused by the erected welding strip during subsequent lamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of a welding strip correction mechanism provided by an embodiment of the utility model;

[0031] Figure 2 It is a schematic diagram of the cooperation between the driving assembly and the correction member provided by the embodiment of the utility model from one perspective;

[0032] Figure 3 It is a schematic diagram of another perspective of the cooperation between the driving assembly and the correction member provided by the embodiment of the utility model;

[0033] Figure 4 is a schematic diagram of the correction member provided by the embodiment of the utility model in the first state;

[0034] Figure 5 is a schematic diagram of the correction member provided by the embodiment of the utility model in the second state;

[0035] Figure 6 It is a schematic diagram of the composition of the drive assembly provided in an embodiment of the utility model.

[0036] In the figure:

[0037] 1. driving assembly; 11. driving member; 12. actuating member; 121. first meshing tooth; 13. right-angle reversing connecting rod; 131. first rod body; 132. second rod body; 14. connecting rod;

[0038] 2. Correction member; 21. Mounting hole; 22. First guide portion; 221. First guide hole; 23. Second guide portion; 231. Correction body; 24. Connecting rib; 25. Second meshing tooth; 26. Correction member body; 27. Connecting ring;

[0039] 3. Guide parts;

[0040] 4. Fix the connecting rod;

[0041] 5. Fixed block. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] Embodiment 1

[0050] See also Figure 1-Figure 6 This embodiment provides a welding ribbon correction mechanism. After the flattened welding ribbon on the welding machine stands up, the welding ribbon correction mechanism can correct the standing welding ribbon so that the welding ribbon is in a safe state.

[0051] When the standing angle of the flattened welding ribbon is less than 60°, there will be no cracks after lamination. After the welding machine turns off the secondary stretching function, the flattened welding ribbon is in a relaxed state after being pushed. When pushed, the welding ribbon is subjected to force to rotate and stand up. Since the standing angle of the welding ribbon is greater than 70°, it is necessary to correct the flattened welding ribbon with a standing angle greater than 70° so that its standing angle is less than 60°.

[0052] Specifically, see Figure 1-Figure 3 In this embodiment, the welding strip correction mechanism includes a driving component 1 and a correction member 2.

[0053] See also Figure 3 and Figure 4 The correcting member 2 is transmission-connected with the driving assembly 1, a mounting hole 21 is coaxially arranged in the correcting member 2, a first guide portion 22 and a second guide portion 23 are fixed in the mounting hole 21, the first guide portion 22 is coaxially fixed in the mounting hole 21, a first guide hole 221 is arranged in the first guide portion 22, the inner diameter of the first guide hole 221 is not greater than the first set size, the second guide portion 23 is coaxially fixed in the first guide hole 221, the second guide portion 23 includes two correcting bodies 231 symmetrically arranged relative to the axis of the correcting member 2, each correcting body 231 is arc-shaped and the central angle of each correcting body 231 is not greater than 150°, the inner diameter of each correcting body 231 is not greater than the second set size, and the second set size is smaller than the first set size.

[0054] Since the second guide portion 23 is coaxially fixed in the first guide hole 221 , the second set size is smaller than the first set size.

[0055] See also Figure 4 When the correction member 2 is in the first state, the two correction bodies 231 are arranged relatively spaced apart from each other; when the driving assembly 1 drives the correction member 2 to rotate around its own axis to the second state, see Figure 5 The two correction bodies 231 are arranged with a relative spacing up and down.

[0056] See also Figure 4When the correction member 2 is in the first state, the two correction bodies 231 are arranged at a relative interval on the left and right sides, roughly surrounding and forming a second guide hole, and the inner diameter of the second guide hole is the second set size. Since each correction body 231 is in an arc shape and the center angle of each correction body 231 is not greater than 150°, and each correction body 231 is symmetrically arranged relative to the horizontal plane in the first state, in the first state, notches are formed on both the upper and lower sides of the second guide hole, and the center angle corresponding to the notch is α. The existence of the notches on the upper and lower sides allows the solder strip that is flattened and stands up to pass through the first guide hole 221.

[0057] The value of α is 180° minus the central angle of each correcting body 231. Specifically, α is greater than 30°. Further optionally, in this embodiment, α is equal to 60°; the central angle of each correcting body 231 is 120°.

[0058] Specifically, in Figure 4 , dimension a represents a first set dimension, and dimension b represents a second set dimension.

[0059] exist Figure 5 In FIG. 2 , the center angle of the correction body 231 is represented by an angle γ.

[0060] The sizes of the first set size and the second set size can be set as needed.

[0061] Generally speaking, the diameter of the round wire welding ribbon is 0.26-0.01 / ﹢0.02mm; the width of the flattened welding ribbon is 0.41mm-0.59mm. Taking into account the differences and precision of the machines, the on-site internal control width is 0.45mm-0.55mm.

[0062] Specifically, in this embodiment, the first set size a is 0.6 mm, and the second set size b is 0.3 mm. This arrangement allows both the round wire welding strip and the flattened welding strip to pass through the welding strip correction mechanism.

[0063] When in use, the weld ribbon correction mechanism provided in this embodiment is installed at the next workstation of the weld ribbon flattening mechanism of the welding machine. After the weld ribbon flattening mechanism flattens the round wire weld ribbon, the flattened weld ribbon passes through the weld ribbon correction mechanism. The weld ribbon correction mechanism can correct the erected weld ribbon so that the weld ribbon is in a safe state.

[0064] Specifically, in the initial state, the correction member 2 is in the first state; at this time, the welding strip is roughly surrounded by the second guide hole formed by the two correction bodies 231, and the circular welding strip that has not been flattened can pass through the second guide hole smoothly. After the flattened welding strip stands up, it passes through the first guide hole 221 and stands up, and the upper and lower ends of the standing welding strip are just located at the notches on the upper and lower sides respectively. That is, when the welding strip is flattened, the welding strip is easy to stand up. Since the width of the flattened welding strip is greater than the second set size, the standing welding strip is in the first guide hole 221, and the side of the standing welding strip is just opposite to the end of the correction member 2. Specifically: the two sides of the upper end of the standing welding strip are respectively opposite to the upper ends of the two correction members 2; the two sides of the lower end of the standing welding strip are respectively opposite to the lower ends of the two correction members 2.

[0065] At this time, the driving assembly 1 drives the correcting member 2 to rotate around its own axis to Figure 5 In the second state shown, during the rotation of the correcting body 231, the free end of the correcting body 231 will abut against the side of the solder strip and drive the solder strip to rotate, so that the erected solder strip rotates to a safe state, avoiding batch cracking defects caused by the erected solder strip during subsequent lamination.

[0066] In the second state, the two correcting bodies 231 are arranged with a vertical spacing, and the two notches of the second guide hole are respectively located on the left and right sides, and the two ends of the flattened welding strip rotated to the safe state are respectively located in the notches on the left and right sides.

[0067] It should be noted that the welding strip is rotated to a safe state; in an ideal state, the welding strip should be in a horizontal state. However, in actual situations, the welding strip standing angle is less than 60°, that is, the angle between the flat surface of the welding strip and the horizontal plane is less than 60°, and the photovoltaic module will not produce cracks after lamination. Therefore, in this embodiment, the central angle of each correcting body 231 is not greater than 150°, which can fully ensure that the welding strip is rotated to a safe state. The standing angle of the welding strip is less than 60°.

[0068] It should be noted that, in this embodiment, the correction body 231 is an arc-shaped sheet structure, and the first guide portion 22 is a hollow thin cylindrical structure.

[0069] At the same time, in this embodiment, when the solder strip passes through the second guide hole, the correction body 231 can effectively control the incoming solder strip with tin beads. Since each correction body 231 is symmetrically arranged relative to the horizontal plane when the correction member 2 is in the first state, the flattened and erected solder strip can pass through the notch area and will not deviate to one side, which is conducive to driving the flattened solder strip to follow the rotation when the correction member 2 rotates, thereby solving the defect of the flattened solder strip standing up.

[0070] Furthermore, in this embodiment, the correcting member 2 also includes a connecting rib 24, one end of which is fixedly connected to the inner wall of the mounting hole 21, and the other end of the connecting rib 24 passes through the first guide portion 22 and is fixedly connected to the free end of the correcting body 231.

[0071] More specifically, the correction member 2 includes four connecting ribs 24 , and each correction body 231 is correspondingly provided with two connecting ribs 24 .

[0072] In this way, the side of the upright welding strip is exactly opposite to the connecting rib 24; the driving assembly 1 drives the correction member 2 to rotate around its own axis to Figure 5 In the second state shown, during the rotation of the correcting body 231 , the connecting rib 24 drives the welding strip to rotate, so that the erected welding strip rotates to a safe state.

[0073] Specifically, see Figure 3 and Figure 6 In this embodiment, the driving assembly 1 includes a driving member 11 and an actuating member 12 .

[0074] The actuating member 12 is transmission-connected with the driving member 11, a first meshing tooth 121 is provided on the actuating member 12, a second meshing tooth 25 is provided on the outer surface of the correcting member 2, the driving member 11 can drive the actuating member 12 to perform reciprocating linear motion, the first meshing tooth 121 can mesh with the second meshing tooth 25 for transmission and drive the correcting member 2 to rotate around its own axis.

[0075] A tooth-engaging rack structure is formed between the actuating member 12 and the correcting member 2 , and the actuating member 12 can drive the correcting member 2 to rotate.

[0076] Specifically, a plurality of first meshing teeth 121 are arranged at intervals on the actuating member 12 so that the actuating member 12 has a rack structure; a plurality of second meshing teeth 25 are arranged at intervals along the circumference of the correcting member 2 so that the correcting member 2 has a gear structure.

[0077] Specifically, the driving member 11 is a servo cylinder of the welding machine for pushing the welding strip.

[0078] Further, see Figure 6 In order to realize one actuation of the driving member 11 so that the actuating member 12 drives the correcting member 2 to rotate 90°, that is, to realize one correction of the standing welding strip, the driving assembly 1 also includes a right-angle reversing connecting rod 13, and the right-angle reversing connecting rod 13 includes a first rod body 131 and a second rod body 132 that are vertically fixed. The output end of the driving member 11 is hinged to the free end of the first rod body 131, and the actuating member 12 is hinged to the free end of the second rod body 132. The driving member 11 can drive the right-angle reversing connecting rod 13 to rotate around the connection between the first rod body 131 and the second rod body 132.

[0079] Specifically, in the welding machine, the connection between the first rod body 131 and the second rod body 132 can be rotatably arranged on the frame of the welding machine. Specifically, a rotating shaft is arranged on the frame of the welding machine, and the connection between the first rod body 131 and the second rod body 132 can rotatably pass through the rotating shaft.

[0080] The output end of the driving member 11 is fixedly connected with a connecting rod 14 , and the connecting rod 14 is hinged to the free end of the first rod body 131 .

[0081] With such arrangement, the output shaft of the driving member 11 extends once and drives the right-angle reversing connecting rod 13 to rotate 90° around the connection between the first rod body 131 and the second rod body 132, thereby driving the correcting member 2 to rotate 90° in the first clockwise direction; the output shaft of the driving member 11 retracts once and drives the right-angle reversing connecting rod 13 to rotate 90° in the opposite direction around the connection between the first rod body 131 and the second rod body 132, thereby driving the correcting member 2 to rotate 90° in the second clockwise direction, and the second clockwise direction is opposite to the first clockwise direction.

[0082] Specifically, by designing the length of the connecting rod 14 , it is possible to extend the output shaft of the driving member 11 once and drive the right-angle reversing connecting rod 13 to rotate 90° around the connection between the first rod body 131 and the second rod body 132 .

[0083] Optionally, the welding strip correction mechanism further includes a guide member 3, which is slidably matched with the actuator 12 and can drive the actuator 12 to reciprocate in a linear direction.

[0084] Specifically, the guide member 3 can be fixedly mounted on the frame of the welding machine, and a limiting groove that slides with the actuating member 12 is provided on the guide member 3 .

[0085] Furthermore, there are multiple correcting members 2, which are arranged in sequence along a straight line, and the driving assembly 1 is connected to each correcting member 2 to drive the multiple correcting members 2 to move synchronously. There are multiple correcting members 2, which can achieve synchronous correction of multiple welding strips.

[0086] Specifically, in this embodiment, the correcting member 2 includes a correcting member body 26 and a connecting ring 27 .

[0087] The correction member body 26 is a cylindrical structure, and the mounting hole 21 is provided through the correction member body 26. The connecting ring 27 is fixedly provided on the end surface of the correction member body 26.

[0088] Specifically, a plurality of second meshing teeth 25 are arranged at intervals along the circumferential direction of the outer circumference of the correction member body 26 , so that the correction member body 26 has a gear structure.

[0089] The welding strip correction mechanism further comprises a fixed connecting rod 4 , and the fixed connecting rod 4 is rotatably connected to the connecting ring 27 of each correction member 2 .

[0090] With such arrangement, the fixing connecting rod 4 is mounted on the frame of the welding machine, thereby realizing the installation of the welding strip correction mechanism on the welding machine.

[0091] The fixed link 4 and the connecting ring 27 of each correcting member 2 can be rotatably connected to prevent the fixed link 4 from interfering with the rotation of the correcting member 2.

[0092] It can be understood that each correcting member 2 is meshed and transmitted with the actuating member 12 to achieve synchronous movement of multiple correcting members 2.

[0093] Furthermore, the weld band correction mechanism also includes two fixed blocks 5, and the two ends of the fixed connecting rod 4 are respectively fixedly connected to the two fixed blocks 5. The two fixed blocks 5 are fixed to the frame of the welding machine by bolts, so that the weld band correction mechanism can be installed on the welding machine.

[0094] Preferably, a connecting ring 27 is fixedly provided on both end faces of the correction member body 26, and the number of fixed connecting rods 4 is four; each connecting ring 27 is correspondingly connected to two fixed connecting rods 4, and the two fixed connecting rods 4 are arranged at intervals up and down. Such an arrangement can make the integrity of the welding strip correction mechanism good.

[0095] Specifically, the fixed connecting rod 4 is rotatably connected to the connecting ring 27 via a connecting member. Optionally, the connecting member is a bolt, which passes through the fixed connecting rod 4 and is screwed into the connecting ring 27, and the bolt and the fixed connecting rod 4 are rotatably connected.

[0096] Embodiment 2

[0097] This embodiment provides a welding machine.

[0098] Specifically, the welding machine includes a welding strip flattening mechanism and also includes the welding strip correcting mechanism of the first embodiment.

[0099] The welding strip correcting mechanism is arranged adjacent to the welding strip flattening mechanism.

[0100] When the welding machine provided in this embodiment is working, the circular welding ribbon is flattened by the welding ribbon flattening mechanism and then conveyed forward. During the forward conveying process, the welding ribbon deflects and stands up, and the standing angle exceeds 70°.

[0101] In the initial state, the correction member 2 is in the first state; at this time, the welding strip is roughly surrounded by the second guide hole formed by the two correction bodies 231, and the circular welding strip that has not been flattened can pass through the second guide hole smoothly. After the flattened welding strip stands up, it passes through the first guide hole 221 and stands up, and the upper and lower ends of the standing welding strip are just located at the notches on the upper and lower sides respectively. That is, when the welding strip is flattened, the welding strip is easy to stand up. Since the width of the flattened welding strip is greater than the second set size, the standing welding strip is in the first guide hole 221, and the side of the standing welding strip is just opposite to the end of the correction member 2. Specifically: the two sides of the upper end of the standing welding strip are respectively opposite to the upper ends of the two correction members 2; the two sides of the lower end of the standing welding strip are respectively opposite to the lower ends of the two correction members 2.

[0102] At this time, the driving assembly 1 drives the correcting member 2 to rotate around its own axis to Figure 5 In the second state shown, during the rotation of the correcting body 231, the free end of the correcting body 231 will abut against the side of the solder strip and drive the solder strip to rotate, so that the erected solder strip rotates to a safe state, avoiding batch cracking defects caused by the erected solder strip during subsequent lamination.

[0103] It should be noted that the welding strip is rotated to a safe state; in an ideal state, the welding strip should be in a horizontal state. However, in actual situations, the welding strip standing angle is less than 60°, that is, the angle between the flat surface of the welding strip and the horizontal plane is less than 60°, and the photovoltaic module will not produce cracks after lamination. Therefore, in this embodiment, the central angle of each correcting body 231 is not greater than 150°, which can fully ensure that the welding strip is rotated to a safe state. The standing angle of the welding strip is less than 60°.

[0104] Specifically, the weld strip flattening mechanism of the welding machine includes an upper flattening block and a lower flattening block which are arranged relatively to each other up and down, and the position of the lower flattening block always remains unchanged; the round wire weld strip is conveyed to the lower flattening block, and then the upper flattening block is controlled to move downward to flatten the round wire weld strip; after flattening, the upper flattening block moves upward and resets; under the pushing action of the pushing servo cylinder of the welding machine, the weld strip moves forward and enters the weld strip correcting mechanism, and the weld strip correcting mechanism corrects the upright weld strip so that the upright weld strip rotates to a safe state.

[0105] The welding machine includes the above-mentioned welding strip correction mechanism, which can achieve the effect of automatically correcting the upright welding strip, make up for the functional defect of secondary stretching after the welding machine falls off and is flattened, optimize the production line rhythm, and improve production efficiency.

[0106] Preferably, the push servo cylinder of the welding machine is the driving member 11 of the driving assembly 1 .

[0107] Exemplarily, the working process of the welding machine is as follows:

[0108] The welding strip flattening mechanism is actuated to flatten the round wire welding strip, and the flattened welding strip is in a relaxed state;

[0109] The moment the driving member 11 pushes the soldering strip, the soldering strip is rotated by force, flattening the soldering strip and standing it up, and at the same time entering the soldering strip correction mechanism;

[0110] The driving member 11 is actuated, so that the connecting rod 14 pushes the right-angle reversing connecting rod 13 to rotate, the actuating member 12 performs a linear motion and drives the correcting member 2 to rotate 90° along the first clockwise direction, and the flattened welding strip also rotates to a safe angle following the correcting member 2;

[0111] The traction clamp of the welding machine clamps the flattened welding strip and completes the function of standing up and automatically rotating the flattened welding strip;

[0112] The driving member 11 is reset, and the actuating member 12 also drives the correcting member 2 to rotate along the second clockwise direction to a reset state.

[0113] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The welding strip correction mechanism is characterized by: include: A drive assembly (1); A correcting member (2) is transmission-connected with the driving assembly (1); a mounting hole (21) is coaxially arranged in the correcting member (2); a first guide portion (22) and a second guide portion (23) are arranged in the mounting hole (21); the first guide portion (22) is coaxially fixed in the mounting hole (21); a first guide hole (221) is arranged in the first guide portion (22); an inner diameter of the first guide hole (221) is not greater than a first set size; the second guide portion (23) is coaxially fixed in the first guide hole (221); the second guide portion (23) comprises two correcting bodies (231) symmetrically arranged relative to the axis of the correcting member (2); each of the correcting bodies (231) is in an arc shape and a central angle of each of the correcting bodies (231) is not greater than 150°; the inner diameter of each of the correcting bodies (231) is not greater than a second set size, and the second set size is smaller than the first set size; When the correcting member (2) is in a first state, the two correcting bodies (231) are arranged at a relative interval left and right; when the driving component (1) drives the correcting member (2) to rotate around its own axis to a second state, the two correcting bodies (231) are arranged at a relative interval up and down.

2. The welding strip correction mechanism according to claim 1, characterized in that: The correcting member (2) further comprises a connecting rib (24), one end of which is fixedly connected to the inner wall of the mounting hole (21), and the other end of which passes through the first guide portion (22) and is fixedly connected to the free end of the correcting body (231).

3. The welding strip correction mechanism according to claim 2, characterized in that: The correcting member (2) comprises four connecting ribs (24), and each correcting body (231) is correspondingly provided with two connecting ribs (24).

4. The welding strip correction mechanism according to claim 1, characterized in that: The driving assembly (1) comprises: A driving member (11); The actuating member (12) is connected to the driving member (11) in a transmission manner. The actuating member (12) is provided with a first meshing tooth (121). The outer surface of the correcting member (2) is provided with a second meshing tooth (25). The driving member (11) can drive the actuating member (12) to perform reciprocating linear motion. The first meshing tooth (121) can mesh with the second meshing tooth (25) to drive the correcting member (2) to rotate around its own axis.

5. The welding strip correction mechanism according to claim 4, characterized in that: The driving assembly (1) further comprises a right-angle reversing connecting rod (13), wherein the right-angle reversing connecting rod (13) comprises a first rod body (131) and a second rod body (132) which are vertically fixedly connected, the output end of the driving member (11) is hinged to the free end of the first rod body (131), the actuating member (12) is hinged to the free end of the second rod body (132), and the driving member (11) can drive the right-angle reversing connecting rod (13) to rotate around the connection between the first rod body (131) and the second rod body (132).

6. The welding strip correction mechanism according to claim 5, characterized in that: The output end of the driving member (11) is fixedly connected to a connecting rod (14), and the connecting rod (14) is hinged to the free end of the first rod body (131).

7. The welding strip correction mechanism according to claim 4, characterized in that: The welding strip correction mechanism also includes a guide member (3), wherein the guide member (3) is slidably matched with the actuating member (12) and is capable of driving the actuating member (12) to reciprocate in a linear direction.

8. The welding strip correction mechanism according to any one of claims 1 to 7, characterized in that: The number of the correcting members (2) is plural, and the multiple correcting members (2) are arranged in sequence along a straight line direction. The driving assembly (1) is transmission-connected to each of the correcting members (2) to drive the multiple correcting members (2) to move synchronously.

9. The welding strip correction mechanism according to claim 8, characterized in that: The corrective member (2) comprises: The correction member body (26) is in a cylindrical structure, and the mounting hole (21) is arranged through the correction member body (26); A connecting ring (27) fixedly arranged on the end surface of the correction member body (26); The welding strip correction mechanism also includes a fixed connecting rod (4), and the fixed connecting rod (4) is rotatably connected to the connecting ring (27) of each correction member (2).

10. A welding machine, comprising a welding strip flattening mechanism, characterized in that: It also includes the weld strip correction mechanism as described in any one of claims 1 to 9, and the weld strip correction mechanism is arranged adjacent to the weld strip flattening mechanism.

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