Solder strip clamp, stringer and solder strip clamping method

Abstract

This application relates to a welding strip clamp, a welding machine, and a welding strip clamping method. The welding strip clamp includes a housing, a base plate, and a clamping module. The base plate is installed in the housing and located within a receiving cavity. The clamping module is installed in the housing and at least partially located within the receiving cavity. The clamping module includes a push plate and clamping members. The push plate is connected to the housing and can move towards or away from the base plate. The clamping members are installed on the push plate and are used to clamp and fix the welding strip. Along the moving direction of the push plate, the clamping members can move relative to the push plate. The number of clamping members is at least two. When the outline shape of the welding strip is rectangular, trapezoidal, or other irregular shapes, the clamping members are movably connected to the push plate, reducing the risk that some clamping members cannot contact the welding strip, thereby further improving the clamping stability of the welding strip by the clamping module and increasing the types of welding strips that the welding strip clamp can clamp, thus expanding the applicability of the welding strip clamp.

Description

Technical Field

[0001] This application relates to the field of photovoltaic manufacturing technology, and in particular to a welding strip clamp, a string welding machine, and a welding strip clamping method. Background Technology

[0002] When welding and fixing the welding strip on a string welding machine, it is necessary to first clamp and fix the welding strip using a welding strip clamp to reduce the risk of welding strip displacement during the welding process. In the prior art, the welding strip clamp includes two clamping modules distributed vertically or horizontally. The welding strip is placed between the two clamping modules to clamp and fix the welding strip. However, the welding strip clamp in the prior art can only be used to clamp and fix conventional round or rectangular welding strips. When the welding strip is triangular, trapezoidal, or other special shapes, the clamping force of the welding strip clamp in the prior art is insufficient, resulting in a large limitation on the use of the welding strip clamp. Summary of the Invention

[0003] This application provides a welding strip clamp, a welding machine, and a welding strip clamping method. The welding strip clamp can clamp welding strips of various shapes, reducing the limitations of the welding strip clamp in use.

[0004] This application provides a welding strip clamp for use in photovoltaic manufacturing. The welding strip clamp includes: a housing forming a receiving cavity; a base plate mounted on the housing and located within the receiving cavity, the base plate being used to receive a portion of the welding strip; and a clamping module mounted on the housing, at least a portion of the clamping module being located within the receiving cavity. The clamping module includes at least a first module and a second module distributed circumferentially along the welding strip. The first module is used to apply a clamping force along a first direction to the welding strip, and the second module is used to apply a clamping force along a second direction to the welding strip. The angle α between the first direction and the second direction satisfies: 0° < α ≤ 180°. The clamping module includes a push plate and a clamping member. The push plate is connected to the housing and is movable towards or away from the base plate. The clamping member is mounted on the push plate and is used to clamp and fix the welding strip. The clamping member is movable relative to the push plate along the moving direction of the push plate. The number of clamping members is at least two.

[0005] In this application, the welding strip is subjected to a clamping force from the first module along a first direction, a clamping force from the second module along a second direction, and a supporting force from the base plate along the height direction of the welding strip clamp. This fixes the welding strip between the first module, the second module, and the base plate by forces acting in three directions, reducing the risk of welding strip displacement and improving the stability of the welding strip's placement on the base plate. A push plate is provided with at least two clamping members, allowing the first module to fix the welding strip from multiple positions, thereby increasing the clamping stability of the welding strip. When the welding strip's outline is rectangular, trapezoidal, or other irregular, the clamping members are movably connected to the push plate, allowing one or more clamping members to contact the welding strip, while the remaining clamping members continue to move under the drive of the push plate until they contact the welding strip. This reduces the risk of some clamping members failing to contact the welding strip, further improving the clamping stability of the welding strip and increasing the types of welding strips that the welding strip clamp can hold, thus expanding the applicability of the welding strip clamp.

[0006] In some embodiments, the push plate is provided with a mounting hole that extends through the push plate along its thickness direction; the clamping member includes a connecting end connected to the push plate, the connecting end including a connecting body, a first abutting portion and a second abutting portion, the connecting body extending along the length direction of the clamping member, a portion of the connecting body being located within the mounting hole, the first abutting portion and the second abutting portion being connected to the connecting body, and along the thickness direction of the push plate, the first abutting portion and the second abutting portion being located on opposite sides of the push plate, and when the clamping member moves relative to the push plate, the first abutting portion or the second abutting portion can abut against the side wall of the push plate.

[0007] In some embodiments, along the length direction of the clamping member, the end of the clamping member away from the push plate is provided with a clamping end, and the end of the clamping end away from the end plate is provided with a clamping surface, which is used to abut against the sidewall of the welding strip; the clamping surface is a plane or an arc surface.

[0008] In some embodiments, the clamping module further includes a pusher, one end of which is connected to the housing and the other end of which is fixedly connected to the push plate. The pusher can drive the push plate to move toward or away from the base plate.

[0009] In some embodiments, the clamping module further includes a third module, which is located between the first module and the second module along the circumference of the welding strip. The third module and the first module, as well as the third module and the second module, are staggered along the length of the welding strip clamp.

[0010] In some embodiments, the number of third modules is one; or, multiple third modules are distributed along the length of the solder strip.

[0011] In some embodiments, the base plate is provided with a groove that extends along the length or width direction of the welding strip clamp, and multiple grooves are spaced apart along a direction perpendicular to the extension direction of the groove; the depth H of the groove satisfies: 0.5mm≤H≤2mm.

[0012] In some embodiments, the groove has an arc-shaped profile; the radius R1 of the groove satisfies: 0.1mm≤R1≤0.35mm.

[0013] A second aspect of this application provides a string welding machine, comprising: a base; a welding strip clamp as described in any of the above claims, the welding strip clamp being mounted on the base for clamping and fixing the welding strip; and a welding device being mounted on the base for welding and fixing the welding strip.

[0014] In this application, the welding strip is first clamped and fixed by a welding strip clamp, and then welded by a welding device, which reduces the risk of welding strip displacement during the welding process and improves the accuracy and stability of the welding strip fixing by the string welding machine.

[0015] A third aspect of this application provides a method for holding welding strips. The welding strip clamp includes a housing, a base plate disposed inside the housing, and a clamping module. The clamping module includes a pusher, a push plate, and clamping members. The number of clamping members is at least two, namely a first clamping member and a second clamping member. The welding strip clamping method includes: placing the welding strip on the base plate; driving the push plate to move towards the base plate by the pusher; the first clamping member abutting against the side wall of the welding strip and stopping its movement, while the push plate continues to move towards the base plate; the second clamping member abutting against the side wall of the welding strip and stopping its movement; when all clamping members have stopped moving, the welding strip is clamped and fixed by the welding strip clamp and the base plate.

[0016] In this application, when the outline shape of the welding strip is rectangular, trapezoidal or other irregular shape, the clamping member is movably connected to the push plate, so that after one or more clamping members abut against the welding strip, the remaining clamping members can continue to move under the drive of the push plate to abut against the welding strip, reducing the risk that some clamping members cannot abut against the welding strip, thereby further improving the clamping stability of the clamping module for the welding strip, increasing the types of welding strips that the welding strip clamp can clamp, and expanding the applicability of the welding strip clamp.

[0017] In some embodiments, the clamping module includes at least a first module, a second module, and a third module. The first module includes a first pusher and a first push plate, the second module includes a second pusher and a second push plate, and the third module includes a third pusher and a third push plate. The step of driving the push plate to move towards the bottom plate via the pusher includes: driving the first push plate towards the bottom plate via the first pusher along a first direction, driving the second push plate towards the bottom plate via the second pusher along a second direction, and driving the third push plate towards the bottom plate via the third pusher along a third direction. The included angle α1 between the first direction and the second direction satisfies: 0° < α1 < 180°; the included angle α2 between the first direction and the third direction satisfies: 0° < α2 < 180°; and the included angle α3 between the second direction and the third direction satisfies: 0° < α3 < 180°.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0019] Figure 1 A top view of one embodiment of the welding strip clamp provided in this application;

[0020] Figure 2 for Figure 1 The front view shows the welding strip clamp in an unclamped state;

[0021] Figure 3 for Figure 1 The left view;

[0022] Figure 4 For Figure 1 The front view shows the welding strip clamp in a clamped state;

[0023] Figure 5 for Figure 2 A schematic diagram of the structure of the clamping module;

[0024] Figure 6 for Figure 5 A schematic diagram of the clamping components in the middle;

[0025] Figure 7 for Figure 2 A schematic diagram of the base plate in the middle;

[0026] Figure 8 for Figure 7 The right view.

[0027] Figure label:

[0028] 1-Shell;

[0029] 11-Receiving cavity;

[0030] 2-Base plate;

[0031] 21-groove;

[0032] 3-Clamping module;

[0033] 31-Module 1;

[0034] 32 - Module Two;

[0035] 33 - Module Three;

[0036] 34-Push plate;

[0037] 341 - First push plate;

[0038] 342 - Second push plate;

[0039] 343 - Third push plate;

[0040] 35 - Clamping component;

[0041] 351 - Connector;

[0042] 351a - Connecting body;

[0043] 351b - First abutment section;

[0044] 351c - Second abutment part;

[0045] 352 - Clamping end;

[0046] 352a - Clamping surface;

[0047] 353-Ontology part;

[0048] 354 - First clamping component;

[0049] 355 - Second clamping element;

[0050] 356 - Third clamping component;

[0051] 36 - Pushing component;

[0052] 361 - First pusher component;

[0053] 362 - Second pusher component;

[0054] 363 - Third pusher component.

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0056] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0057] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0058] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0059] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0060] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0061] This application provides a string welding machine, which includes a base, a welding strip clamp mounted on the base, and a welding device mounted on the base. The welding strip clamp is used to hold and fix the welding strip, and the welding device is used to weld and fix the welding strip.

[0062] In this embodiment, the welding strip is first clamped and fixed by a welding strip clamp, and then welded by a welding device. This reduces the risk of welding strip displacement during the welding process, thereby improving the accuracy and stability of the welding strip fixing by the string welding machine.

[0063] like Figures 1 to 4As shown, the welding strip clamp includes a housing 1, a base plate 2 mounted on the housing 1, and a clamping module 3 mounted on the housing 1. The housing 1 forms a receiving cavity 11, the base plate 2 is located inside the receiving cavity 11, a portion of the welding strip is placed on the base plate 2, and at least a portion of the clamping module 3 is located inside the receiving cavity 11. The clamping module 3 includes at least a first module 31 and a second module 32 distributed along the circumference of the welding strip. The first module 31 is used to apply a clamping force along a first direction on the welding strip, and the second module 32 is used to apply a clamping force along a second direction on the welding strip.

[0064] In this embodiment, the welding strip is subjected to a clamping force from the first module 31 along the first direction, a clamping force from the second module 32 along the second direction, and a supporting force from the base plate 2 along the height direction Z of the welding strip clamp. This causes the welding strip to be fixed between the first module 31, the second module 32, and the base plate 2 by the forces acting in three directions, thereby achieving clamping and fixing of the welding strip, reducing the risk of welding strip displacement, improving the stability of the welding strip's placement position on the base plate 2, and thus improving the working stability and reliability of the string welding machine.

[0065] The angle α between the first direction and the second direction satisfies: 0°<α≤180°. Specifically, the angle between the first direction and the second direction can be 1°, 11°, 21°, 31°, 41°, 51°, 61°, 71°, 81°, 91°, 101°, 111°, 121°, 131°, 141°, 151°, 161°, 171°, 180°, etc.

[0066] In this embodiment, the angle between the first direction and the second direction can be an acute angle, a right angle, an obtuse angle, or the first direction can be opposite to the second direction, so as to improve the flexibility of the setting position and setting angle of the first module 31 and the second module 32.

[0067] The first module 31 and the second module 32 have the same structure. Taking the first module 31 as an example, as follows: Figure 2 As shown, the first module 31 includes a push plate 34 and a clamping member 35. The push plate 34 is connected to the housing 1 and can move towards or away from the base plate 2. The clamping member 35 is mounted on the push plate 34 and is used to clamp and fix the welding strip. Along the moving direction of the push plate 34, the clamping member 35 can move relative to the push plate 34. The number of clamping members 35 on a push plate 34 is at least two. Taking three clamping members 35 as an example... Figure 5 As shown, the three clamping members 35 are respectively referred to as the first clamping member 354, the second clamping member 355, and the third clamping member 356.

[0068] During the clamping and fixing of the welding strip, the push plate 34 is driven to move closer to the welding strip. When the first clamping member 354 on the push plate 34 comes into contact with the welding strip, while the remaining clamping members 35 have not yet come into contact with the welding strip, the push plate 34 continues to move closer to the welding strip. Since the clamping members 35 can move relative to the push plate 34, the first clamping member 354, which has come into contact with the welding strip, remains stationary in its current position. The second clamping member 355 and the third clamping member 356 continue to move under the drive of the push plate 34 until all the clamping members 35 come into contact with the welding strip. The push plate 34 then stops moving to complete the clamping and fixing of the welding strip.

[0069] In this embodiment, at least two clamping members 35 are provided on a push plate 34, enabling the first module 31 to fix the welding strip from multiple positions, thereby increasing the clamping stability of the welding strip by the clamping module 3. When the outline shape of the welding strip is rectangular, trapezoidal, or other irregular shape, the clamping members 35 are movably connected to the push plate 34, so that after one or more clamping members 35 abut against the welding strip, the remaining clamping members 35 can continue to move under the drive of the push plate 34 to abut against the welding strip, reducing the risk that some clamping members 35 cannot abut against the welding strip, thereby further improving the clamping stability of the welding strip by the clamping module 3, increasing the types of welding strips that the welding strip clamp can clamp, and expanding the applicability of the welding strip clamp.

[0070] In this process, the first module 31 and the second module 32 move synchronously. That is, when the clamping member 35 of the first module 31 comes into contact with the welding strip, the clamping member 35 of the second module 32 will also come into contact with the welding strip. This reduces the risk of the welding strip being pushed by the first module 31, thereby improving the accuracy of the welding strip's position on the base plate 2.

[0071] Specifically, such as Figures 1 to 4 As shown, the clamping module 3 also includes a pusher 36. One end of the pusher 36 is connected to the housing 1, and the other end of the pusher 36 is fixedly connected to the push plate 34. The pusher 36 can drive the push plate 34 to move towards or away from the base plate 2.

[0072] The clamping module 3 includes at least a first pusher 361 and a second pusher 362. The first pusher plate 341 is fixedly connected to the first pusher 361, and the second pusher plate 342 is fixedly connected to the pusher 361.

[0073] In this embodiment, the structure of driving the push plate 34 to move is simplified by driving the pusher 36, thereby simplifying the structure of the clamping module 3.

[0074] In one embodiment, a drive motor is mounted on the housing 1, and a push plate 34 is mounted on the retractable output shaft of the drive motor. The drive electrolytic capacitor is the aforementioned push member 36. The push plate 34 is mounted on the housing 1 via the drive motor, and the movement of the push plate 34 is controlled by the drive motor to improve the smoothness of the movement of the push plate 34 and the accuracy of the movement distance.

[0075] In another embodiment, a push rod is movably connected to the housing 1, and a push plate 34 is mounted on the push rod. The push rod is the aforementioned pusher 36. The push plate 34 is mounted on the housing 1 via the push rod, and the end of the push rod away from the push plate 34 protrudes out of the housing 1 and is exposed. The operator can hold the exposed end of the push rod and manually insert or remove the push rod to realize the movement of the push plate 34. The manual operation of the push plate 34 by the push rod simplifies the structure of the clamping module 3, thereby helping to reduce the cost of the welding strip clamp.

[0076] In another embodiment, a telescopic rod is installed on the housing 1. One end of the telescopic rod is fixedly connected to the push plate 34, and the other end is connected to the drive components such as cylinders, oil cylinders, and motors on the housing 1. The telescopic rod is the aforementioned push component 36. The drive component drives the push plate 34 to move by controlling the extension and retraction of the telescopic rod. This improves the stability of the push plate 34's movement and enhances the connection between the push plate 34 and the drive component.

[0077] In this embodiment, the connection form of the drive component-telescopic rod-push plate 34 is taken as an example.

[0078] Specifically, the push plate 34 is provided with mounting holes, which extend through the push plate 34 along its thickness direction; for example... Figure 6 As shown, the clamping member 35 includes a body portion 353. Along the length direction of the clamping member 35, the body portion 353 is provided with a connecting end 351 and a clamping end 352. The connecting end 351 is connected to the push plate 34. The connecting end 351 includes a connecting body 351a, a first abutting part 351b, and a second abutting part 351c. The connecting body 351a extends along the length direction of the clamping member 35. A part of the connecting body 351a is located in the mounting hole. The first abutting part 351b and the second abutting part 351c are connected to the connecting body 351a. Along the thickness direction of the push plate 34, the first abutting part 351b and the second abutting part 351c are located on both sides of the push plate 34. When the clamping member 35 moves relative to the push plate 34, the first abutting part 351b or the second abutting part 351c can abut against the side wall of the push plate 34.

[0079] A moving space is formed between the first abutting part 351b and the second abutting part 351c. Taking the first clamping member 354 as an example, when the first clamping member 354 is not in contact with the welding strip, the first abutting part 351b abuts with the push plate 34, and there is a gap between the second abutting part 351c and the push plate 34. When the first clamping member 354 abuts with the welding strip and the second clamping member 355 is not in contact with the welding strip, the push plate 34 continues to move, so that the push plate 34 is released from contact with the first abutting part 351b, and the push plate 34 moves towards the second abutting part 351c until the push plate 34 abuts with the second abutting part 351c.

[0080] In this embodiment, the first abutment portion 351b and the second abutment portion 351c are provided, which reduces the risk of the clamping member 35 disengaging from the push plate 34, thereby improving the connection stability between the clamping member 35 and the push plate 34, and thus improving the working stability of the clamping module 3. At the same time, the second abutment portion 351c can limit the movement distance of the push plate 34, reducing the space waste caused by the large movement distance of the push plate 34, which is conducive to reducing the overall size of the welding strip clamp and reducing the cost of the welding strip clamp and the string welding machine.

[0081] like Figure 6 As shown, along the length of the clamping member 35, a clamping end 352 is provided at the end of the clamping member 35 away from the push plate 34, and a clamping surface 352a is provided at the end of the clamping end 352 away from the end plate. The clamping surface 352a is used to abut against the side wall of the welding strip. The clamping surface 352a is a plane or a circular arc surface.

[0082] In this embodiment, the clamping surface 352a can be a plane, an arc surface, or other deformable shapes to improve the structural flexibility of the clamping surface 352a. In this application, the clamping surface 352a is an arc surface, which can increase the contact area between the clamping surface 352a and the surface of the welding strip, thereby increasing the clamping force of the clamping member 35 on the welding strip, and further improving the stability of the clamping module 3 and the welding strip clamp on the welding strip.

[0083] In any of the above embodiments, the clamping module 3 further includes a third module 33. The structure of the third module 33 is the same as that of the first module 31 and the second module 32. Along the circumference of the welding strip, the third module 33 is located between the first module 31 and the second module 32. The third module 33 and the first module 31, and the third module 33 and the second module 32 are staggered along the length direction of the welding strip clamp.

[0084] In this embodiment, the third module 33 can apply a clamping force along a third direction on the welding strip, thereby further improving the stability of the clamping module 3 and the welding strip clamp on the welding strip.

[0085] Specifically, the number of third modules 33 can be one, in order to reduce the cost of the welding strip clamp and help reduce the overall size of the welding strip clamp; or, multiple third modules 33 can be distributed along the length direction X of the welding strip, reducing the risk of deformation and displacement of the unclamped part of the welding strip, thereby further improving the stability of the welding strip clamp on the welding strip and helping to improve the accuracy of the welding strip welding and fixing of the welding strip by the string welding machine.

[0086] In any of the above embodiments, such as Figure 7 and Figure 8 As shown, the base plate 2 is provided with a groove 21. The groove 21 extends along the length direction X or the width direction Y of the welding strip clamp. Multiple grooves 21 are distributed at intervals along the direction perpendicular to the extension direction of the groove 21.

[0087] In this embodiment, a groove 21 is provided on the base plate 2, making the surface of the base plate 2 that contacts the welding strip uneven. This increases the friction between the base plate 2 and the welding strip, reduces the risk of the welding strip sliding on the base plate 2, and thus improves the stability of the welding strip on the base plate 2. When the welding strip has a special shape, such as when the welding strip has a local protrusion or sharp intersection structure, the groove 21 can accommodate part of the welding strip, thereby increasing the contact area between the base plate 2 and the welding strip, and further improving the stability of the welding strip on the base plate 2.

[0088] The depth H of the groove 21 satisfies: 0.5mm≤H≤2mm. Specifically, the depth of the groove 21 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, etc.

[0089] In this embodiment, if the depth of the groove 21 is small, i.e., H < 0.5 mm, then the improvement in the stability of the solder strip on the base plate 2 by setting the groove 21 is small; if the depth of the groove 21 is large, i.e., H > 2 mm, then the structural strength of the base plate 2 at the location of the groove 21 is poor. Therefore, 0.5 mm ≤ H ≤ 2 mm, while ensuring a significant improvement in the stability of the solder strip on the base plate 2, increases the structural strength of the base plate 2, thereby helping to extend the service life of the base plate 2.

[0090] In addition, the outline shape of the groove 21 can be triangular, rectangular, arc-shaped, trapezoidal or other deformed structures to increase the flexibility of the groove 21 structure.

[0091] In this embodiment, the outline shape of the groove 21 is arc-shaped to facilitate the processing of the groove 21 and reduce the processing cost of the groove 21; wherein, the radius R1 of the groove 21 satisfies: 0.1mm≤R1≤0.35mm, specifically, the radius of the groove 21 can be 0.1mm, 0.11mm, 0.13mm, 0.15mm, 0.17mm, 0.19mm, 2mm, 2.1mm, 2.3mm, 2.5mm, 2.7mm, 2.9mm, 3mm, 3.1mm, 3.3mm, 3.5mm, etc.

[0092] If the radius of the groove 21 is small, i.e., R1 < 0.1 mm, the processing difficulty of the groove 21 is high, resulting in higher processing costs. If the radius of the groove 21 is large, i.e., R1 > 0.35 mm, and the distance between adjacent grooves 21 is small, there is a risk that the weld strip may be dented or damaged due to stress concentration when it comes into contact with the surface of the weld strip. If the distance between adjacent grooves 21 is large, there is a risk that the friction between the base plate 2 and the weld strip may not meet the requirements. Therefore, 0.1 mm ≤ R1 ≤ 0.35 mm can reduce the processing difficulty and cost of the groove 21, while also reducing the risk of the weld strip being dented or damaged due to stress concentration, and improving the friction between the base plate 2 and the weld strip.

[0093] Based on the string welding machine and welding strip clamp in any of the above embodiments, this application provides a welding strip clamping method, which includes:

[0094] Place the welding strip on the base plate 2;

[0095] The pusher 36 drives the push plate 34 to move closer to the base plate 2;

[0096] The first clamping member 354 abuts against the side wall of the welding strip, and the first clamping member 354 stops moving. At the same time, the push plate 34 continues to move towards the bottom plate 2.

[0097] The second clamping member 355 abuts against the side wall of the welding strip, and the second clamping member 355 stops moving. At the same time, the push plate 34 continues to move towards the bottom plate 2.

[0098] The third clamping member 356 abuts against the side wall of the welding strip, and the third clamping member 356 stops moving;

[0099] When all the clamping parts 35 stop moving, the welding strip is clamped and fixed by the welding strip clamp and the base plate 2.

[0100] In this embodiment, when the outline shape of the welding strip is rectangular, trapezoidal or other irregular shape, the clamping member 35 is movably connected to the push plate 34, so that after one or several clamping members 35 abut against the welding strip, the remaining clamping members 35 can continue to move under the drive of the push plate 34 to abut against the welding strip, reducing the risk that some clamping members 35 cannot abut against the welding strip, thereby further improving the clamping stability of the clamping module 3 on the welding strip, and increasing the types of welding strips that the welding strip clamp can clamp, thus expanding the applicability of the welding strip clamp.

[0101] Specifically, taking the clamping module 3, which includes a first module 31, a second module 32, and a third module 33, as an example, the push plate 34 on the first module 31 is the first push plate 341, and the pusher 36 is the first pusher 361; the push plate 34 on the second module 32 is the second push plate 342, and the pusher 36 is the second pusher 362; the push plate 34 on the third module 33 is the third push plate 343, and the pusher 36 is the third pusher 363. The step of driving the push plate 34 to move closer to the base plate 2 via the pusher 36 includes:

[0102] Along the first direction, the first pusher 361 drives the first push plate 341 to move towards the bottom plate 2; along the second direction, the second pusher 362 drives the second push plate 342 to move towards the bottom plate 2; and along the third direction, the third pusher 363 drives the third push plate 343 to move towards the bottom plate 2.

[0103] The angle α1 between the first direction and the second direction satisfies: 0° < α1 < 180°;

[0104] The angle α2 between the first direction and the third direction satisfies: 0°<α2<180°;

[0105] The angle α3 between the second direction and the third direction satisfies: 0°<α3<180°.

[0106] In summary, the solder strip clamping method provided in this application embodiment is as follows:

[0107] Place the welding strip on the base plate 2;

[0108] Along the first direction, the first pusher 361 drives the first push plate 341 to move towards the bottom plate 2. At the same time, along the second direction, the second pusher 362 drives the second push plate 342 to move towards the bottom plate 2. At the same time, along the third direction, the third pusher 363 drives the third push plate 343 to move towards the bottom plate 2.

[0109] Taking the first module 31 as an example, the first clamping member 354 abuts against the side wall of the welding strip, the first clamping member 354 stops moving, and at the same time, the first push plate 341 continues to move towards the bottom plate 2;

[0110] The second clamping member 355 abuts against the side wall of the welding strip, and the second clamping member 355 stops moving. At the same time, the first push plate 341 continues to move towards the bottom plate 2.

[0111] The third clamping member 356 abuts against the side wall of the welding strip, and the third clamping member 356 stops moving;

[0112] When all the clamping parts 35 on the first module 31, the second module 32, and the third module 33 stop moving, the welding strip is clamped and fixed by the welding strip clamp and the base plate 2.

[0113] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A welding strip clamp, applied in the photovoltaic manufacturing field, characterized in that, The welding strip clamp includes: The housing (1) forms a receiving cavity (11). A base plate (2) is mounted on the housing (1) and located within the receiving cavity (11), the base plate (2) being used to receive a portion of the welding strip; A clamping module (3) is installed on the housing (1), at least a portion of the clamping module (3) is located in the receiving cavity (11), the clamping module (3) includes at least a first module (31) and a second module (32) distributed circumferentially along the welding strip, the first module (31) is used to apply a clamping force along a first direction on the welding strip, and the second module (32) is used to apply a clamping force along a second direction on the welding strip, the angle α between the first direction and the second direction satisfies: 0°<α≤180°; The first module (31) and the second module (32) have the same structure. The first module (31) includes a first push plate (341) and a clamping member (35). The first push plate (341) is connected to the housing (1). The first push plate (341) can move towards or away from the bottom plate (2). The clamping member (35) is installed on the first push plate (341). The clamping member (35) is used to clamp and fix the welding strip. Along the moving direction of the first push plate (341), the clamping member (35) can move relative to the first push plate (341). The number of clamping members (35) is at least two; The first push plate (341) is provided with a mounting hole. The clamping member (35) includes a connecting end (351) connected to the first push plate (341). The connecting end (351) includes a connecting body (351a), a first abutting part (351b), and a second abutting part (351c). The connecting body (351a) extends along the length direction of the clamping member (35), and a portion of the connecting body (351a) is located in the mounting hole. The first abutting part (351b) The first abutment (351b) and the second abutment (351c) are connected to the connecting body (351a) and along the thickness direction of the first push plate (341), the first abutment (351b) and the second abutment (351c) are respectively located on both sides of the first push plate (341). When the clamping member (35) moves relative to the first push plate (341), the first abutment (351b) or the second abutment (351c) can abut against the side wall of the first push plate (341).

2. The welding strip clamp according to claim 1, characterized in that, The mounting hole extends through the first push plate (341) along the thickness direction of the first push plate (341).

3. The welding strip clamp according to claim 1, characterized in that, Along the length direction of the clamping member (35), a clamping end (352) is provided at one end of the clamping member (35) away from the first push plate (341), and a clamping surface (352a) is provided at one end of the clamping end (352) away from the first push plate (341). The clamping surface (352a) is used to abut against the side wall of the welding strip. The clamping surface (352a) is a plane or a circular arc surface.

4. The welding strip clamp according to claim 1, characterized in that, The first module (31) further includes a first pusher (361), one end of which is connected to the housing (1), and the other end of which is fixedly connected to the first push plate (341). The first pusher (361) can drive the first push plate (341) to move toward or away from the base plate (2).

5. The welding strip clamp according to any one of claims 1 to 4, characterized in that, The clamping module (3) further includes a third module (33), which is located between the first module (31) and the second module (32) along the circumferential direction of the welding strip. The third module (33) and the first module (31) and the third module (33) and the second module (32) are staggered along the length direction of the welding strip clamp.

6. The welding strip clamp according to claim 5, characterized in that, The number of the third module (33) is one; Alternatively, multiple third modules (33) may be distributed along the length of the solder strip.

7. The welding strip clamp according to any one of claims 1 to 4, characterized in that, The base plate (2) is provided with a groove (21), the groove (21) extends along the length or width direction of the welding strip clamp, and multiple grooves (21) are spaced apart along the direction perpendicular to the extension direction of the groove (21). The depth H of the groove (21) satisfies: 0.5mm≤H≤2mm.

8. The welding strip clamp according to claim 7, characterized in that, The groove (21) has an arc-shaped outline; The radius R1 of the groove (21) satisfies: 0.1mm≤R1≤0.35mm.

9. A string welding machine, characterized in that, The string welding machine includes: Matrix; The welding strip clamp according to any one of claims 1 to 8, wherein the welding strip clamp is mounted on the base and is used to clamp and fix the welding strip; A welding device, which is mounted on the substrate, is used to weld and fix the welding strip.

10. A method for holding welding strips, used in the welding strip clamp according to any one of claims 4 to 8, wherein the clamping member (35) comprises at least a first clamping member (354) and a second clamping member (355), characterized in that, The welding strip clamping method includes: Place the welding strip on the base plate (2); The first pusher (361) drives the first push plate (341) to move toward the base plate (2); The first clamping member (354) abuts against the side wall of the welding strip, the first clamping member (354) stops moving, and at the same time, the first push plate (341) continues to move towards the bottom plate (2); The second clamping member (355) abuts against the side wall of the welding strip, and the second clamping member (355) stops moving; When all the clamping members (35) stop moving, the welding strip is clamped and fixed by the welding strip clamp and the base plate (2).

11. The method for holding welding strips according to claim 10, characterized in that, The clamping module (3) includes at least a first module (31), a second module (32), and a third module (33). The first module (31) includes a first pusher (361) and a first pusher plate (341). The second module (32) includes a second pusher (362) and a second pusher plate (342). The third module (33) includes a third pusher (363) and a third pusher plate (343). The welding strip clamping method includes: Along the first direction, the first pusher (361) drives the first push plate (341) to move toward the base plate (2); along the second direction, the second pusher (362) drives the second push plate (342) to move toward the base plate (2); along the third direction, the third pusher (363) drives the third push plate (343) to move toward the base plate (2). The angle α1 between the first direction and the second direction satisfies: 0° < α1 < 180°; The angle α2 between the first direction and the third direction satisfies: 0° < α2 < 180°; The angle α3 between the second direction and the third direction satisfies: 0° < α3 < 180°.

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