A clamping mechanism and stringing device

Abstract

This utility model discloses a clamping mechanism and a string-forming device, relating to the field of battery string production technology. It includes a first clamping group and a second clamping group. The first clamping group includes a first driving member, a first adapter, a first left clamping member, and a first right clamping member. A plurality of first gripper arms extend from the first left and first right clamping members, and the plurality of first gripper arms on the first left and first right clamping members are arranged in pairs. The second clamping group includes a second driving member, a second adapter, a second left clamping member, and a second right clamping member. A plurality of second gripper arms extend from the second left and second right clamping members, and the second gripper arms on the second left and second right clamping members are arranged in pairs. The plurality of paired first and second gripper arms are arranged alternately. The first and second clamping groups independently control the interdigitated welding strips, eliminating the need to distinguish the laying order of each group of welding strips, thereby improving the efficiency of continuously laying welding strips and battery cells into battery strings.

Description

Technical Field

[0001] This utility model relates to the field of battery string production technology, and in particular to a clamping mechanism and string-making device. Background Technology

[0002] In a back-contact battery string, the forked fingers of the solder ribbon connecting two adjacent cells are distributed on the back of the cell. During the laying of the solder ribbons of the forked fingers, two sets of staggered solder ribbons are laid on the back of the same cell. The two sets of solder ribbons are laid to the surface of the cell one after the other and need to be managed independently. When continuously laying solder ribbons on the surface of the cell, a solder ribbon management structure is usually set on one side of the cell. However, the existing solder ribbon management structure can only clamp multiple sets of parallel solder ribbons at the same time and cannot manage them in groups. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a clamping mechanism and a stringing device that can simultaneously control two groups of staggered welding strip ends.

[0004] This application discloses a clamping mechanism, comprising: a first clamping group and a second clamping group. The first clamping group includes a first driving member, and a first left clamping member and a first right clamping member drivenly connected to the first driving member via a first adapter. A plurality of first gripper arms extend from the first left clamping member and the first right clamping member, and the plurality of first gripper arms on the first left clamping member and the first right clamping member are arranged in pairs. The second clamping group includes a second driving member, and a second left clamping member and a second right clamping member drivenly connected to the second driving member via a second adapter. A plurality of second gripper arms extend from the second left clamping member and the second right clamping member, and the plurality of second gripper arms on the second left clamping member and the second right clamping member are arranged in pairs. The plurality of the paired first gripper arms and second gripper arms are alternately arranged along the welding strip arrangement direction.

[0005] Optionally, the clamping ends of the first gripper arm and the second gripper arm are arranged linearly along the welding strip arrangement direction.

[0006] Optionally, the first left clamp and the first right clamp, the second left clamp and the second right clamp are sequentially attached to each other and sequentially slidably sleeved on the guide shaft, which is connected to the fixed base.

[0007] Optionally, the first adapter includes a first lever whose one end is engaged with the driving end of the first driving member, and the other end has two stepped surfaces that are respectively connected to the first guide holes provided on the first left clamping member and the first right clamping member; or, the second adapter includes a second lever whose one end is engaged with the driving end of the second driving member, and the other end has two stepped surfaces that are respectively connected to the second guide holes provided on the second left clamping member and the second right clamping member.

[0008] Optionally, the first driving component and the second driving component have the same structure and are arranged opposite to each other. The first driving component includes a driving motor, an eccentric shaft connected to the driving end of the driving motor, and a connecting component sleeved on the eccentric shaft. A driving shaft is provided on one side of the connecting component. A spring and a bushing are sleeved on the driving shaft. One end of the first lever is engaged with the bushing.

[0009] Optionally, the top of the first gripper arm and the second gripper arm clamping end are provided with a stopper, the welding strip is placed under the stopper, and the top of the first gripper arm and the second gripper arm clamping end are respectively provided with a slot for accommodating the end of the opposing stopper.

[0010] This application also proposes a stringing device using any of the above-mentioned clamping mechanisms, which further includes a conveying mechanism disposed on one side of the clamping mechanism and a support member disposed between the conveying mechanism and the clamping mechanism. The support member and the conveying mechanism are used to carry the battery cells, and the clamping mechanism is used to clamp the welding strip extending from one end of the conveying mechanism.

[0011] Optionally, the top of the support component is provided with adsorption holes.

[0012] Optionally, the top ends of the first gripper arm, the second gripper arm, and the support member are all arc-shaped on the side facing the conveying mechanism, and the top end of the support member extends to fit closely against the support surface of the conveying mechanism.

[0013] The technical solution provided by this utility model separately controls two sets of interdigitated welding strips through a first clamping group and a second clamping group. The clamping ends of the first gripper arms, which are arranged opposite to each other on the first and second clamping groups, extend into the gap of the second gripper arms and are arranged alternately. The first driving member and the second driving member, which are respectively connected to the first gripper arms and the second gripper arms, independently control the opening and closing of the clamping ends of the first gripper arms and the second gripper arms. The two sets of welding strips are arranged interdigitally and controlled separately, without affecting each other. They can be used independently to cooperate with the laying of the battery cells without distinguishing or waiting for the priority of one set of welding strips, thereby improving the efficiency of continuous laying of welding strips and battery cells. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the clamping mechanism proposed in this utility model; Figure 2 This is a front view schematic diagram of the clamping mechanism proposed in this utility model; Figure 3 This is a cross-sectional view of the first driving component and the second driving component in this utility model; Figure 4 This is a partially enlarged schematic diagram of the first and second clamping groups proposed in this utility model; Figure 5 This is a schematic diagram of the string-making device proposed in this utility model; Figure 6 This is a top view of the string-making device of this utility model.

[0016] The attached figures are labeled as follows: 10. First clamping assembly; 11. First left clamping member; 12. First right clamping member; 13. First gripper arm; 20. Second clamping assembly; 21. Second left clamping member; 211. Stopping member; 212. Slot; 22. Second right clamping member; 23. Second gripper arm; 30. First driving member; 31. Drive motor; 32. Eccentric shaft; 33. Connecting member; 34. Drive shaft; 35. Spring; 36. Bushing; 40. Second driving member; 50. Fixed base; 51. Guide shaft; 61. First lever; 62. Second lever; 70. Support component; 80. Conveying mechanism. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2As shown, a clamping mechanism includes: a first clamping group 10 and a second clamping group 20. The first clamping group 10 includes a first driving member 30, and a first left clamping member 11 and a first right clamping member 12 drivenly connected to the first driving member 30 via a first adapter. The first left clamping member 11 and the first right clamping member 12 are provided with a plurality of first gripper arms 13, and the plurality of first gripper arms 13 on the first left clamping member 11 and the first right clamping member 12 are arranged in pairs. The second clamping group 20 includes a second driving member 40, and a second left clamping member 21 and a second right clamping member 22 drivenly connected to the second driving member 40 via a second adapter. The second left clamping member 21 and the second right clamping member 22 are provided with a plurality of first gripper arms 13. A plurality of second gripper arms 23 are provided. The plurality of second gripper arms 23 on the second left gripper 21 and the second right gripper 22 are arranged in pairs. The first gripper arm 13 extends into the gap between two adjacent second gripper arms 23. The plurality of pairs of first gripper arms 13 and second gripper arms 23 are arranged alternately. The alternately arranged first gripper arms 13 and second gripper arms 23 respectively grip two sets of welding strips with interlocking fingers. The first drive unit 30 and the second drive unit 40 independently control the opening and closing of the first gripper arms 13 and the second gripper arms 23, so as to respectively cooperate to fix the beginning and end of the interlocking welding strips, which is used to sequentially control the two sets of interlocking welding strips on the same battery cell surface when laying battery strings.

[0020] In some embodiments, the clamping ends of the first gripper arm 13 and the second gripper arm 23 are arranged linearly in the direction of the welding strip arrangement. The clamping end of the first gripper arm 13 extends toward the clamping end of the second gripper arm 23 and is aligned, so that the clamping positions of the first gripper arm 13 and the second gripper arm 23 are at the same length position of the welding strip, correspondingly clamping and fixing the ends of different groups of welding strips at the same length position.

[0021] In some embodiments, refer to Figure 2 As shown, the first left clamping member 11 and the first right clamping member 12, the second left clamping member 21 and the second right clamping member 22 are sequentially attached to each other and slidably sleeved on the guide shaft 51. The guide shaft 51 is connected to the fixed base 50. Specifically, the first left clamping member 11, the first right clamping member 12, the second left clamping member 21 and the second right clamping member 22 each have a strip-shaped hole opened on the guide shaft 51 in the clamping opening and closing direction. One end of the guide shaft 51 will pass through the limiting step to sequentially insert and attach the first left clamping member 11, the first right clamping member 12, the second left clamping member 21 and the second right clamping member 22 onto the fixed base 50. When the first driving member 30 and the second driving member 40 drive the first left clamping member 11 and the first right clamping member 12, the second left clamping member 21 and the second right clamping member 22 to open and close, they always move along the length direction of the strip-shaped hole without any change in other directions, so that the positional accuracy of the welding strip clamping is more accurate.

[0022] In some embodiments, the first adapter includes a first lever 61 with one end engaged with the drive end of the first drive member 30, and the other end having two stepped surfaces that are respectively connected to the first guide holes provided on the first left clamping member 11 and the first right clamping member 12. Alternatively, the second adapter includes a second lever 62 with one end engaged with the drive end of the second drive member 40, and the other end of the second lever 62 having two stepped surfaces that are respectively connected to the second guide holes provided on the second left clamping member 21 and the second right clamping member 22. When the first drive member 30 drives one end of the first lever 61, the other end of the first lever 61 drives the first left clamping member 11 and the first right clamping member 12 to move in opposite directions in the welding strip arrangement direction, so as to clamp or release the welding strip between the first gripper arms 13 that are arranged in pairs on the first left clamping member 11 and the first right clamping member 12. The driving relationship of the second adapter is the same.

[0023] In some embodiments, such as Figure 3 As shown, the first driving member 30 and the second driving member 40 have the same structure and are arranged opposite to each other. The first driving member 30 includes a driving motor 31, an eccentric shaft 32 connected to the driving end of the driving motor 31, and a connecting member 33 sleeved on the eccentric shaft 32. A driving shaft 34 is provided on one side of the connecting member 33. A spring 35 and a bushing 36 are sleeved on the driving shaft 34. One end of the first lever 61 is engaged with the bushing 36.

[0024] When the first driving member 30 and the second driving member 40 drive one end of the first adapter and the second adapter to swing, the first driving member 30 pushes one end of the first lever 61 to rotate, and the oppositely arranged first gripper arms 13 open or close. The spring 35 sleeved on the drive shaft 34 is compressed. The elastic pressing force causes the opposing first gripper arms 13 to clamp the welding strip by elastic force. The elastic clamping is not easy to cause clamping damage to the welding strip and protects the welding strip from being squeezed and deformed.

[0025] In some embodiments, such as Figure 4 As shown, both the first gripper arm 13 and the second gripper arm 23 have a stopper 211 at their top gripping ends. The welding strip is placed under the stopper 211. The tops of the gripping ends of the first gripper arm 13 and the second gripper arm 23 are also provided with slots 212 for accommodating the ends of the stoppers 211. The stopper 211 on the first left gripper 11 extends to the slot 212 on the first right gripper 12, and the stopper 211 on the first right gripper 12 extends to the first left gripper 12. The slot 212 on component 11 and the abutment 211 and slot 212 on the second gripper arm 23 are based on the same principle. One end of the abutment 211 extends to the upper part of the gripper arm on the opposite side, so that the welding strip passing between the first gripper arm 13 or the second gripper arm 23 will not jump out of its clamping range when the first gripper arm 13 and the second gripper arm 23 are open or closed. The welding strip is always controlled between the first gripper arm 13 or the second gripper arm 23 that are arranged opposite each other.

[0026] In addition, such as Figure 5 , Figure 6 As shown, this application also proposes a stringing device, which includes any of the above-mentioned clamping mechanisms, and further includes a conveying mechanism 80 disposed on one side of the clamping mechanism, and a support member 70 disposed between the conveying mechanism 80 and the clamping mechanism. The support member 70 and the conveying mechanism 80 are used to carry the battery cells, and the clamping mechanism is used to clamp the welding strip extending from one end of the conveying mechanism 80.

[0027] The top of the support component 70 is provided with an adsorption hole, which is used to adsorb and position the battery cell when the support component 70 and the conveying mechanism 80 jointly support the battery cell, so as to prevent the battery cell from moving during the laying process and affecting the docking accuracy with the welding strip, and thus the adsorption hole is used for positioning and adsorption.

[0028] The top ends of the first gripper arm 13, the second gripper arm 23, and the support member 70 are all arc-shaped on the side facing the conveying mechanism 80. The top end of the support member 70 extends and fits closely to the support surface of the conveying mechanism 80, so as to be closer to the edge of the support surface. The support member 70 and the conveying mechanism 80 can support a larger area of ​​battery cells.

[0029] When laying battery strings, refer to Figure 6 As shown, the welding strips are laid on the support surface of the conveying mechanism 80. The rear half of the first group of welding strips and the front half of the second group of welding strips are interdigitated and laid on the lower surface of the same battery cell. The battery cell is supported by the conveying mechanism 80 and the support component 70. The second clamping group 20 and the first clamping group 10 are close to the end of the conveying mechanism 80 and respectively clamp and control the tail end of the first group of welding strips and the middle part of the second group of welding strips. When the next group of welding strips is laid, the conveying mechanism 80 conveys the battery cell and welding strips forward by one battery cell position and continues to lay the third group of welding strips. The front end of the third group of welding strips is arranged at the rear end of the first group of welding strips and is connected to the first group of welding strips. The two sets of welding strips are arranged with interdigitated fingers at their rear ends. At this time, the first clamping group 10 clamps the tail end of the second set of welding strips, and the second clamping group 20 clamps the middle part of the third set of welding strips. During this process, the second clamping group 20 releases the first set of welding strips. Before clamping the middle part of the third set of welding strips, the first clamping group 10 can pre-clamp the tail end of the second set of welding strips after the position change. When the third set of welding strips moves to the conveying mechanism 80, the second clamping group 20 clamps the middle part again. The first clamping group 10 and the second clamping group 20 independently control one end of the interdigitated welding strips without affecting each other. The rhythm is compact, which improves the efficiency of welding strip transfer and battery cell laying.

[0030] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An entrainment mechanism characterized by, include: The first clamping group (10) and the second clamping group (20) are provided. The first clamping group (10) includes a first driving member (30), and a first left clamping member (11) and a first right clamping member (12) that are drivenly connected to the first driving member (30) through a first adapter. A plurality of first gripper arms (13) extend from the first left clamping member (11) and the first right clamping member (12). The plurality of first gripper arms (13) on the first left clamping member (11) and the first right clamping member (12) are arranged in pairs. The second clamping group (20) is also provided. It includes a second driving member (40), and a second left clamping member (21) and a second right clamping member (22) that are driven to the second driving member (40) via a second adapter. A plurality of second gripper arms (23) are extended on the second left clamping member (21) and the second right clamping member (22). The plurality of second gripper arms (23) on the second left clamping member (21) and the second right clamping member (22) are arranged in pairs. The plurality of first gripper arms (13) and second gripper arms (23) arranged in pairs are alternately arranged along the welding strip arrangement direction.

2. The clamping mechanism according to claim 1, characterized in that, The clamping ends of the first gripper arm (13) and the second gripper arm (23) are arranged linearly along the welding strip arrangement direction.

3. The clamping mechanism according to claim 1, characterized in that, The first left clamp (11) and the first right clamp (12), the second left clamp (21) and the second right clamp (22) are sequentially attached to each other and are sequentially slidably sleeved on the guide shaft (51), which is connected to the fixed seat (50).

4. The clamping mechanism according to claim 1, characterized in that, The first adapter includes a first lever (61) whose one end is engaged with the driving end of the first driving member (30), and the other end is provided with two stepped surfaces that are respectively connected to the first guide holes provided on the first left clamping member (11) and the first right clamping member (12). Alternatively, the second adapter includes a second lever (62) whose one end is engaged with the driving end of the second driving member (40), and the other end is provided with two stepped surfaces that are respectively connected to the second guide holes on the second left clamping member (21) and the second right clamping member (22).

5. The clamping mechanism according to claim 4, characterized in that, The first driving member (30) and the second driving member (40) have the same structure and are arranged opposite to each other. The first driving member (30) includes a driving motor (31), an eccentric shaft (32) connected to the driving end of the driving motor (31), and a connecting member (33) sleeved on the eccentric shaft (32). A driving shaft (34) is provided on one side of the connecting member (33). A spring (35) and a bushing (36) are sleeved on the driving shaft (34). One end of the first lever (61) is engaged with the bushing (36).

6. The clamping mechanism according to claim 1, characterized in that, The top of the first gripper arm (13) and the second gripper arm (23) are provided with a stop (211), and the welding strip is placed at the lower part of the stop (211). The top of the gripping end of the first gripper arm (13) and the second gripper arm (23) are also provided with a slot (212) for accommodating the end of the stop (211).

7. A stringing device, characterized in that, The clamping mechanism as described in any one of claims 1-6 further includes a conveying mechanism (80) disposed on one side of the clamping mechanism, and a support member (70) disposed between the conveying mechanism (80) and the clamping mechanism, the support member (70) and the conveying mechanism (80) being used to carry the battery cell, and the clamping mechanism being used to clamp the welding strip extending from one end of the conveying mechanism (80).

8. The stringing apparatus according to claim 7, characterized in that, The top of the support component (70) is provided with an adsorption hole.

9. The stringing apparatus according to claim 7, characterized in that, The top ends of the first gripper arm (13), the second gripper arm (23), and the support member (70) are all arc-shaped on the side facing the conveying mechanism (80), and the top end of the support member (70) extends to fit closely to the support surface of the conveying mechanism (80).

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