CN216802244U - Welding machine and welding equipment - Google Patents

Abstract

The utility model discloses a welding machine and welding equipment, relates to the technical field of photovoltaics, and aims to solve the problems that the quality of a welded battery piece is unqualified and the working performance of a photovoltaic module is reduced due to insufficient welding on the front surface of the battery piece. The welding machine is used for welding the battery plate and the welding strip. The welding machine includes a load bearing structure and a welding structure. The bearing structure comprises a bearing plate, a jacking piece and a bearing frame. The bearing plate is connected with bearing frame both ends respectively at the loading board both ends, and the first end of jacking piece runs through bearing frame and is used in the first face of bearing plate. And welding strips are arranged on the two sides of the battery piece and are abutted against the second surface of the bearing plate. Along the direction of being close to or keeping away from the battery piece, jacking piece reciprocating motion to but make the controllable emergence of loading board, battery piece and solder strip deformation that resets. The welding structure comprises a plurality of pressing pins, and when the welding machine welds the battery piece and the welding strip, the pressing pins are abutted to two ends of the welding strip on the front side of the battery piece. The utility model also provides welding equipment comprising the welding machine in the technical scheme.

Description

Welding machine and welding equipment

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a welding machine and welding equipment.

Background

In the process of manufacturing the photovoltaic module, the main grids on the front and back of the cell need to be welded with the welding strips.

In the prior art, machining operations are generally performed using a welding machine. Specifically, the battery piece and the solder strip to be soldered are placed on a load-bearing structure of a soldering machine. And then, abutting the pressing pin on the welding strip positioned on the front surface of the battery piece. During actual welding, the welding strip at the position abutted by the pressing pin can only be ensured to be in full contact with the main grid on the front surface of the battery piece, namely, the main grid and the welding strip at other positions on the front surface of the battery piece are not in contact or are not in complete contact. Because the battery piece has certain weight, the welding strips on the back surface of the battery piece are in good contact with the main grid on the back surface of the battery piece.

Based on this, the risk of the front surface of the battery piece generating the cold joint is larger than that of the back surface. At this time, the quality of the welded battery piece is unqualified, and the working performance of the photovoltaic module is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding machine and welding equipment, which are used for reducing the risk of insufficient welding on the front surface of a cell, improving the quality of the cell and further improving the working performance of a photovoltaic module.

In order to achieve the above object, the present invention provides a welding machine. The welding machine is used for welding the battery plate and the welding strip. The welding machine includes: a load bearing structure and a welded structure. The bearing structure comprises a bearing plate, a jacking piece and a bearing frame. The both ends of loading board are connected with the both ends of bearing the frame respectively, and the first end of jacking piece runs through bearing the frame and is used in the first face of loading board. The battery piece has relative front and back, and the front and the back of battery piece all are provided with welds the area, are located the second face butt of welding area and the loading board of battery piece back. Along the direction of being close to or keeping away from the battery piece, jacking piece reciprocating motion to but make the controllable emergence of loading board, battery piece and solder strip deformation that resets. The welding structure comprises a plurality of pressing pins, and when the welding machine welds the battery piece and the welding strip, the pressing pins are abutted to two ends of the welding strip positioned on the front side of the battery piece.

Compared with the prior art, in the welding machine provided by the utility model, the jacking piece can reciprocate along the direction close to or far away from the battery piece, so that the bearing plate, the battery piece and the welding strip can be controllably deformed in a resetting manner. When the battery plate and the welding strip are welded, the jacking piece moves in a direction close to the battery plate. And because the two ends of the bearing plate are respectively connected with the two ends of the bearing frame, the first end of the jacking piece penetrates through the bearing frame and acts on the first surface of the bearing plate. At this moment, the jacking piece jacks the position, which is in contact with the first end of the jacking piece, of the bearing plate, so that the bearing plate is deformed, namely the side view of the bearing plate is arc-shaped. Based on this, the battery piece and the solder strip placed on the second surface of the carrier plate are deformed from a rectangular shape in side view to an arc shape. At this time, the solder ribbons on the front side of the cell (i.e., above the cell) are elongated. And because in the actual welding process, the pressing pin can be abutted against the two ends of the welding strip, the two ends of the welding strip are pressed tightly and cannot move, and the welding strip is subjected to downward acting force. Based on this, the solder strip that is located the positive of battery piece produces tensile stress for the solder strip hugs closely in the positive of battery piece, and then can reduce or eliminate the risk that the positive rosin joint takes place for the later stage battery piece. Further, since the solder strip on the back side of the cell (i.e., under the cell) is located between the carrier plate and the cell, the solder strip is subjected to a lifting force upward from the carrier plate and a gravity downward from the cell. At the moment, the contact between the welding strip and the back surface of the battery piece is better, and the risk of cold joint on the back surface of the battery piece in the later period is further reduced or eliminated. In conclusion, the risk of insufficient soldering on the front side and the back side of the cell can be reduced or eliminated, the quality of the cell is improved, and the working performance of the photovoltaic module is further improved. When the welding of the battery piece and the welding strip is completed, the jacking piece moves in the direction away from the battery piece. Above-mentioned loading board, battery piece and welding area resume deformation, weld area and battery piece welding firm, satisfy actual need.

In one implementation, the bearing plate and the jacking piece are made of the same or different materials.

Under the condition of adopting above-mentioned technical scheme, when the material of loading board and jacking piece is the same, can make loading board and jacking piece simultaneously for the preparation speed.

When the material of loading board and jacking piece is different, increased the selectivity of preparation loading board and jacking piece raw materials, increased the application scope of welding machine.

In one implementation, the bearing plate is a copper bearing plate or an iron bearing plate.

Under the condition of adopting above-mentioned technical scheme, first aspect because copper or iron are high temperature resistant material, consequently at the in-process of welding battery piece and solder strip, can avoid the loading board to be damaged because of the high temperature. In the second aspect, because copper or iron have certain elasticity, the bearing plate that consequently utilizes copper or iron to make formation is convenient for take place to deform under the effect of jacking piece to make the battery piece and the solder strip that are located on the bearing plate take place to deform, and then reduce or eliminate the risk that the rosin joint took place for the battery piece front and the back. In the third aspect, because copper or iron has certain rigidity, when the jacking piece exerts an upward acting force on the bearing plate, the bearing plate can be prevented from being damaged, and the service life of the bearing plate is prolonged.

In one implementation, the jacking member is a copper jacking member or an iron jacking member.

Under the condition of adopting above-mentioned technical scheme, first aspect because copper or iron are high temperature resistant material, consequently at the in-process of welding battery piece and solder strip, can avoid the jacking piece to be damaged because of the high temperature. In the second aspect, because copper or iron have certain elasticity, consequently utilize copper or iron to make the jacking piece that forms, can take place deformation at the in-process of jacking loading board, and then avoid jacking piece and loading board rigid contact, avoid jacking piece and loading board to damage, prolong the life of jacking piece and loading board. In the third aspect, because copper or iron has certain rigidity, when the jacking piece exerts an upward acting force on the bearing plate, the jacking piece can be prevented from being damaged, and the service life of the jacking piece is further prolonged.

In one implementation, an end surface of the first end of the jacking piece is a cambered surface.

Under the condition of adopting above-mentioned technical scheme, because the jacking piece is at the in-process of jacking loading board, the side view of loading board is the arc. Based on this, when the terminal surface of the first end of jacking piece is the cambered surface, the position shape phase-match that jacking piece and loading board contacted. At this moment, not only more be favorable to jacking piece jacking loading board, prevent that the place of jacking piece effect on the loading board is too sharp-pointed to damage the loading board. Meanwhile, the side view of the stressed position of the bearing plate is in an arc shape, namely, a triangular shape or other shapes are avoided, and the side view of the battery piece and the welding strip is changed from a rectangular shape to an arc shape, so that the risk of insufficient welding on the front side and the back side of the battery piece is reduced or eliminated.

In one implementation mode, the area of the first end of the jacking piece is S1, the area of the first surface of the bearing plate is S2, and S1 is more than or equal to 0.2S2 and less than or equal to 0.3S 2.

Adopt under above-mentioned technical scheme's the condition, on the one hand, be favorable to jacking piece jacking loading board, prevent that the place that jacking piece was used in on the loading board is too sharp-pointed to damage the loading board. On the other hand, the cost of raw materials for manufacturing the jacking piece can be reduced.

In one implementation manner, the bearing structure further includes an elastic connecting member, and two ends of the bearing plate are connected to two ends of the bearing frame through the elastic connecting member respectively.

Adopt under the condition of above-mentioned technical scheme, after the jacking piece makes its deformation take place with the bearing board jacking, can assist the bearing board to resume original shape through above-mentioned elastic connection spare. At this moment, on the one hand, can improve the speed that the loading board resumes deformation. On the other hand, can prolong the life of loading board, avoid the loading board only to rely on self characteristic to resume the deformation and lead to the loading board to damage.

In one implementation, the supporting structure further includes a driving member connected to the second end of the lifting member for driving the lifting member to move back and forth along the direction from the first end and the second end.

Adopt under the condition of above-mentioned technical scheme, utilize the driving piece can be simple quick make the jacking piece motion to reduce artificial participation, labour saving and time saving improves work efficiency.

In one implementation, the driving member is any one of a pneumatic cylinder, a hydraulic cylinder and a motor.

Under the condition of adopting above-mentioned technical scheme, on the one hand, above-mentioned component is easily obtained, can reduce the preparation degree of difficulty of welding machine. On the other hand, the selectivity of driving piece increases, not only can enlarge the application scope of welding machine this moment, can also improve the replaceability of driving piece simultaneously, ensures the normal work of welding machine.

In one implementation, the welding structure further comprises a heating assembly, the second end of each pressing pin is connected with the heating assembly, and the heating assembly is located above the battery piece and the welding strip.

Under the condition of adopting above-mentioned technical scheme, above-mentioned welded structure constitutes simply, easily obtains, and convenient to use can reduce the use degree of difficulty of welding machine.

In one implementation mode, the welding machine further comprises a transmission structure, wherein the transmission structure is arranged on the second surface of the bearing plate and used for transmitting the battery piece and the welding strip.

Under the condition of adopting above-mentioned technical scheme, utilize above-mentioned transmission structure to accelerate the welding speed of battery piece and solder strip, improved work efficiency, reduced staff's participation, labour saving and time saving.

In a second aspect, the utility model further provides a welding device, which comprises the welding machine in the technical scheme.

Compared with the prior art, the welding equipment provided by the utility model has the same beneficial effects as the welding machine in the technical scheme, and the details are not repeated here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a welder in an embodiment of the utility model;

FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;

fig. 3 is a top view of a portion of the structure of fig. 1.

Reference numerals:

1-battery piece, 2-welding strip, 3-bearing structure,

30-a bearing plate, 31-a jacking piece,

32-bearing frame, 320-cross bar, 321-vertical bar,

33-elastic connection, 34-driving element,

4-welding structure, 40-pressing needle; 5-transmission structure.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the process of manufacturing the photovoltaic module, the main grids on the front and back of the cell need to be welded with the welding strips. In the prior art, machining operations are generally performed using a welding machine. Specifically, a battery piece to be welded and a welding strip are placed on a bearing structure of the welding machine, wherein the bearing structure is a plane structure. And then, abutting a pressing pin on the welding strip positioned on the front surface of the battery piece, and welding the battery piece and the welding strip by using the pressing pin under the action of the heating lamp box.

During actual welding, the welding strip at the position abutted by the pressing pin can only be ensured to be in full contact with the main grid on the front surface of the battery piece, namely, the main grid and the welding strip at other positions on the front surface of the battery piece are not in contact or are not in complete contact. Because the battery piece has certain weight, the welding strips on the back surface of the battery piece are in good contact with the main grid on the back surface of the battery piece.

Based on this, the risk of the front surface of the battery piece generating the cold joint is larger than that of the back surface. At this time, the quality of the welded battery piece is unqualified, and the working performance of the photovoltaic module is reduced.

In order to solve the technical problem, an embodiment of the utility model provides a welding machine. The welding machine can be used for welding different workpieces under different application scenes. Referring to fig. 1 to 3, in the embodiment of the present invention, for the purpose of description, a battery sheet 1 and a welding strip 2 are welded, and it is to be understood that the following description is only for understanding and is not intended to be particularly limiting.

Referring to fig. 1 to 3, the welding machine may include: a load bearing structure 3 and a welded structure 4. The load bearing structure 3 comprises a carrier plate 30, a jacking member 31 and a carrier 32. The two ends of the bearing plate 30 are respectively connected with the two ends of the bearing frame 32, and the first end of the jacking piece 31 penetrates through the bearing frame 32 and acts on the first surface of the bearing plate 30. The battery piece 1 is provided with a front surface and a back surface which are opposite to each other, the front surface and the back surface of the battery piece 1 are respectively provided with a welding strip 2, and the welding strips 2 positioned on the back surface of the battery piece 1 are abutted against the second surface of the bearing plate 30. The jacking piece 31 reciprocates along the direction close to or far away from the battery piece 1, so that the bearing plate 30, the battery piece 1 and the welding strip 2 can be controllably deformed in a resetting way. The welding structure 4 comprises a plurality of pressing pins 40, and when the welding machine welds the battery piece 1 and the welding strip 2, the pressing pins 40 are abutted against two ends of the welding strip 2 positioned on the front surface of the battery piece 1.

Referring to fig. 1 to 3, the shape, material, etc. of the loading frame 32 may be set according to actual conditions, and are not limited specifically herein. For example, the carriers 32 may be formed from cross bars and vertical bars, transverse plates and vertical plates, or other suitable structures. The following description is given by way of example of one possible implementation and it is to be understood that the following description is in no way intended to be limiting. The bearing frame 32 may be composed of a cross bar 320 and two vertical bars 321, wherein two ends of the cross bar 320 are respectively connected to the vertical bars 321 perpendicularly. Then, a through hole is formed in the cross bar 320, and the lifting member 31 penetrates through the through hole and acts on the first surface of the bearing plate 30. It should be understood that the length of the vertical rod 321 extends in a direction close to the battery piece 1. The lifting member 31 may be a lifting rod. In the embodiment of the utility model, pressing pins 40 are arranged at two ends of each welding strip 2 positioned on the front surface of the battery piece 1, and the middle position of each welding strip 2 is not arranged.

Referring to fig. 1 to 3, in the welding machine provided by the embodiment of the utility model, the jacking piece 31 can reciprocate in a direction close to or far away from the battery piece 1, so that the bearing plate 30, the battery piece 1 and the welding strip 2 can be controllably deformed in a resettable manner. When welding the battery piece 1 and the welding strip 2, the lifting piece 31 moves in a direction close to the battery piece 1. And because the two ends of the bearing plate 30 are respectively connected with the two ends of the bearing frame 32, the first end of the jacking piece 31 penetrates through the bearing frame 32 and acts on the first surface of the bearing plate 30. At this time, the jacking member 31 jacks the position of the bearing plate 30 contacting with the first end of the jacking member 31 to deform the bearing plate, that is, the side view of the bearing plate 30 is arc-shaped. Based on this, the battery cell 1 and the solder ribbon 2 placed on the second face of the carrier plate 30 are deformed from a rectangular shape in side view to an arc shape. At this moment, the solder strip 2 on the front side of the battery piece 1 (i.e. above the battery piece 1) is elongated, and because the pressing pin 40 is abutted against the two ends of the solder strip 2 in the actual welding process, the two ends of the solder strip 2 are pressed tightly and cannot move, i.e. the solder strip 2 is subjected to a downward acting force. Based on this, the solder strip 2 on the front of the cell 1 generates tensile stress, so that the solder strip 2 is tightly attached to the front of the cell 1, and the risk of insufficient solder on the front of the cell 1 in the later period can be reduced or eliminated. Further, since the solder ribbon 2 located on the back side of the cell 1 (i.e., below the cell 1) is located between the carrier plate 30 and the cell 1, the solder ribbon 2 is subjected to a lifting force upward from the carrier plate 30 and a gravity downward from the cell 1. At this moment, the solder strip 2 is in better contact with the back of the battery piece 1, and the risk of cold joint occurring on the back of the battery piece 1 in the later period is further reduced or eliminated. In conclusion, the risk of insufficient solder joints on the front side and the back side of the cell piece 1 can be reduced or eliminated, the quality of the cell piece 1 is improved, and the working performance of the photovoltaic module is improved. In addition, when the jacking piece 31 moves in a direction close to the cell piece 1, the cell piece 1 and the welding strip 2 at the point a rise by the same distance, and the stress between the edge of the cell piece 1 and the welding strip 2 at the point a does not increase. The cell 1 and the welding strip 2 at the point B do not move, that is, the cell 1 and the welding strip 2 at the point B do not move relatively, and the stress between the edge of the cell 1 and the welding strip 2 at the point B does not increase. Based on this, the risk of subfissure of the cell sheet 1 can be reduced or eliminated.

Referring to fig. 1 to 3, in the embodiment of the present invention, two battery cells 1 are placed on one of the carrier plates 30. Of course, one, three or more battery cells 1 may be disposed on the one carrier plate 30, and are not limited in this respect. When two battery pieces 1 are placed on one bearing plate 30, the point a is located at the center of the bearing plate 30, and the bearing plate 30 at the point a is lifted upwards by 1mm to 3mm under the jacking action of the jacking piece 31. It should be understood that the above-mentioned 1mm to 3mm rise height is within the deformation amount range of the spring of the pressing pin 40, and at this time, the pressure between the pressing pin 40 and the solder strip 2 is not increased, and further, the pressure between the pressing pin 40 and the battery piece 1 is not increased, that is, the pressing pin 40 does not damage the battery piece 1. Further, the position of the point a is located at one end of the cell sheet 1, that is, the lifting piece 31 lifts up one end of the cell sheet 1. Of course, the jacking piece 31 can also jack any other position of the battery piece 1, so that the side view of the battery piece 1 is arc-shaped to meet the actual requirement.

Referring to fig. 1 to 3, when the welding of the battery piece 1 and the welding strip 2 is completed, the lifting piece 31 moves in a direction away from the battery piece 1. The bearing plate 30, the battery piece 1 and the welding strip 2 are deformed again, and the welding strip 2 is firmly welded with the battery piece 1, so that the actual requirement is met. It should be understood that since the total length of the battery piece 1 is about 91mm, and the total length is increased by 1mm to 3mm, the welding strip 2 and the battery piece 1 are slightly deformed, and the welding effect is not affected when the battery piece 1 and the welding strip 2 are deformed again.

As a possible implementation mode, the material of the bearing plate is the same as or different from that of the jacking piece.

When the bearing plate and the jacking piece are made of the same material, the bearing plate and the jacking piece can be manufactured at the same time, and the manufacturing speed is accelerated. When the material of loading board and jacking piece is different, increased the selectivity of preparation loading board and jacking piece raw materials, increased the application scope of welding machine.

In an alternative, the carrier plate is a copper carrier plate or an iron carrier plate.

Under the condition of adopting above-mentioned technical scheme, first aspect because copper or iron are high temperature resistant material, consequently at the in-process of welding battery piece and solder strip, can avoid the loading board to be damaged because of the high temperature. In the second aspect, because copper or iron have certain elasticity, the bearing plate that consequently utilizes copper or iron to make formation is convenient for take place to deform under the effect of jacking piece to make the battery piece and the solder strip that are located on the bearing plate take place to deform, and then reduce or eliminate the risk that the rosin joint took place for the battery piece front and the back. In the third aspect, because copper or iron has certain rigidity, when the jacking piece exerts an upward acting force on the bearing plate, the bearing plate can be prevented from being damaged, and the service life of the bearing plate is prolonged. The thickness of the carrier plate can be set according to practical conditions, and is not particularly limited.

In an alternative, the jacking member is a copper jacking member or an iron jacking member.

Under the condition of adopting above-mentioned technical scheme, first aspect because copper or iron are high temperature resistant material, consequently at the in-process of welding battery piece and solder strip, can avoid the jacking piece to be damaged because of the high temperature. In the second aspect, because copper or iron have certain elasticity, consequently utilize copper or iron to make the jacking piece that forms, can take place deformation at the in-process of jacking loading board, and then avoid jacking piece and loading board rigid contact, avoid jacking piece and loading board to damage, prolong the life of jacking piece and loading board. In the third aspect, because copper or iron have certain rigidity, when the jacking piece exerts upward acting force on the bearing plate, the jacking piece can be prevented from being damaged, and the service life of the jacking piece is further prolonged.

As a possible implementation manner, referring to fig. 3, the end surface of the first end of the jacking piece 31 is a cambered surface. Since the jacking pieces 31 are in the process of jacking the bearing plate 30, the side view of the bearing plate 30 is arc-shaped. Based on this, when the end surface of the first end of the jacking piece 31 is a cambered surface, the shape of the contact position of the jacking piece 31 and the bearing plate 30 is matched. At this moment, not only more be favorable to jacking piece 31 jacking loading board 30, prevent that the place that jacking piece 31 was used in on loading board 30 is too sharp with loading board 30 damage. Meanwhile, the side view of the stressed place of the bearing plate 30 is in an arc shape, namely, a triangular shape or other shapes are avoided, and the side view of the battery piece 1 and the welding strip 2 is changed from a rectangular shape to an arc shape, so that the risk of insufficient welding on the front surface and the back surface of the battery piece 1 is reduced or eliminated.

As a possible implementation manner, referring to FIG. 3, the area of the first end of the jacking member 31 is S1, the area of the first surface of the bearing plate 30 is S2, and 0.2S2 ≦ S1 ≦ 0.3S 2. At this moment, on the one hand, be favorable to jacking piece 31 jacking loading board 30, prevent that the place that jacking piece 31 was used in on loading board 30 from too sharply damaging loading board 30. On the other hand, the cost of the raw material for manufacturing the jack 31 can be reduced. It is understood that the above S1 may be 0.2S2, 0.22S2, 0.28S2, or 0.3S 2. In the embodiment of the present invention, the area S1 of the first end of the lifting member 31 is 0.25S 2.

The connection mode of the bearing plate and the bearing frame is various, for example, the connection mode can be bonding, welding, clamping or connection through a connecting piece. In an embodiment of the utility model, the bearing plate is connected with the bearing frame through a connecting piece.

Specifically, referring to fig. 1 and 2, the bearing structure 3 further includes elastic connectors 33, and two ends of the bearing plate 30 are respectively connected to two ends of the bearing frame 32 through the elastic connectors 33. Therefore, when the lifting member 31 lifts the bearing plate 30 to deform the bearing plate, the elastic connecting member 33 can assist the bearing plate 30 to restore to the original shape. At this time, on the one hand, the speed of the load plate 30 recovering from the deformation can be increased. On the other hand, the service life of the bearing plate 30 can be prolonged, and the bearing plate 30 is prevented from being damaged due to the fact that the bearing plate 30 is deformed only by means of self characteristics.

In an alternative, see fig. 1 and 2, the above-mentioned elastic connection 33 can be a spring. The spring is easy to obtain and has a simple structure. Therefore, in the actual use process, the spring is convenient to use, and the use difficulty can be reduced. Specifically, in the embodiment of the present invention, the spring is a hard spring. The hard spring is stretched during the process that the jacking piece 31 approaches the battery plate 1, namely the jacking piece 31 jacks the bearing plate 30. In the process that the jacking piece 31 is far away from the battery piece 1, the hard spring drives the bearing plate 30 to move towards the direction far away from the battery piece 1 due to the characteristic that the hard spring recovers deformation, so that the bearing plate 30 and the hard spring are reset.

In an alternative, the first end of the lifting member penetrates through the bearing frame and acts on the first surface of the bearing plate, and the lifting member and the bearing plate can be in a fastening connection or abutting connection.

When the jacking piece is connected with the bearing plate in a fastening mode (for example, welding or bonding), the jacking piece can drive the bearing plate to reciprocate, namely, under the action of the jacking piece, the bearing plate can recover deformation.

When the jacking piece is abutted to the bearing plate, the bearing plate can restore to deform automatically. Of course, under the action of the elastic connecting piece, the elastic connecting piece can assist the bearing plate to recover the deformation.

As a possible implementation, referring to fig. 1, the above-mentioned bearing structure 3 may further include a driving member 34, and the driving member 34 is connected to the second end of the lifting member 31 for driving the lifting member 31 to reciprocate along the direction from the first end and the second end. Utilize driving piece 34 can be simple quick messenger jacking piece 31 motion to reduce artificial participation, labour saving and time saving improves work efficiency.

In an alternative, referring to fig. 1, the driving member 34 may be any one of a pneumatic cylinder, a hydraulic cylinder, and an electric motor. Under the condition of adopting above-mentioned technical scheme, on the one hand, above-mentioned component is easily obtained, can reduce the preparation degree of difficulty of welding machine. On the other hand, the selectivity of the driving part 34 is increased, so that the application range of the welding machine can be enlarged, the replaceability of the driving part 34 can be improved, and the normal work of the welding machine is ensured.

As a possible implementation manner, referring to fig. 1, the welding structure 4 may further include a heating assembly (not shown in fig. 1 to 3), and the second end of each pressing pin is connected to the heating assembly, and the heating assembly is located above the battery piece and the welding strip. Therefore, the welding structure is simple in composition, easy to obtain and convenient to use, and the use difficulty of the welding machine can be reduced. The heating assembly may include a lamp tube, a lamp box, etc., and is not particularly limited herein. The heating assembly plays a role in heating the welding strip during welding. By utilizing the welding machine provided by the embodiment of the utility model, the risk of cold joint on the front surface of the cell can be reduced or eliminated under the conditions of not changing the design of the pressing pin and not influencing the irradiation area of the lamp tube in the lamp box.

As a possible implementation, referring to fig. 1 and 2, the welding machine may further include a transmission structure 5, and the transmission structure 5 is disposed on the second surface of the loading plate 30 for transmitting the battery pieces 1 and the welding strips 2. Utilize above-mentioned transmission structure 5 to accelerate the welding speed of battery piece 1 and solder strip 2, improved work efficiency, reduced staff's participation, labour saving and time saving. Specifically, the conveying structure 5 may be a conveying belt, and the conveying belt may be a belt.

In a second aspect, an embodiment of the present invention further provides a welding device, including the welding machine according to the above technical solution.

The beneficial effects of the welding equipment provided by the embodiment of the utility model are the same as those of the welding machine in the technical scheme, and the details are not repeated here.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The welding machine is characterized in that the welding machine is used for welding a battery piece and a welding strip; the welding machine includes:

the bearing structure comprises a bearing plate, a jacking piece and a bearing frame; two ends of the bearing plate are respectively connected with two ends of the bearing frame; the first end of the jacking piece penetrates through the bearing frame and acts on the first surface of the bearing plate; the battery piece is provided with a front surface and a back surface which are opposite, the front surface and the back surface of the battery piece are both provided with the welding strips, and the welding strips positioned on the back surface of the battery piece are abutted against the second surface of the bearing plate; the jacking piece moves back and forth along the direction close to or far away from the battery piece, so that the bearing plate, the battery piece and the welding strip can be controllably deformed in a resetting way;

the welding structure comprises a plurality of pressing pins, and when the welding machine welds the battery piece and the welding strip, the first ends of the pressing pins are abutted to the two ends of the welding strip on the front side of the battery piece.

2. The welding machine of claim 1, wherein the bearing plate and the lift element are the same or different materials.

3. The welding machine of claim 1 or 2, wherein the carrier plate is a copper carrier plate or an iron carrier plate; and/or the presence of a gas in the gas,

the jacking piece is a copper jacking piece or an iron jacking piece.

4. The welding machine of claim 1, wherein an end surface of the first end of the jacking member is a cambered surface; and/or the presence of a gas in the gas,

the area of the first end of the jacking piece is S1, the area of the first surface of the bearing plate is S2, and S1 is more than or equal to 0.2S2 and less than or equal to 0.3S 2.

5. The welding machine of claim 1, wherein the load bearing structure further comprises a resilient connector;

the two ends of the bearing plate are connected with the two ends of the bearing frame through the elastic connecting pieces respectively.

6. The welding machine of claim 1, wherein the load bearing structure further comprises a drive member coupled to the second end of the lift member for driving the lift member to reciprocate in a direction from the first and second ends.

7. The welding machine of claim 6, wherein the drive member is any one of a pneumatic cylinder, a hydraulic cylinder, and an electric motor.

8. The welding machine of claim 1, wherein the welding structure further comprises a heating assembly, the second end of each of the pressing pins being coupled to the heating assembly; the heating assembly is located above the battery piece and the welding strip.

9. The welding machine of claim 1, further comprising a transmission structure disposed on the second side of the carrier plate for transmitting the battery pieces and the solder ribbon.

10. A welding apparatus, characterized in that it comprises a welding machine according to any one of claims 1 to 9.

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