A welding strip handling device

Abstract

This utility model discloses a welding strip handling device, belonging to the field of welding strip tooling handling technology. The welding strip handling device includes a horizontal handling mechanism, a linear module, a rotating mechanism, a handling bracket, and a welding strip handling mechanism. The horizontal handling mechanism is mounted on a fixed mounting surface; the linear module is mounted on the output end of the horizontal handling mechanism; the rotating mechanism is mounted on the lower end of the linear module; the handling bracket is connected to the output end of the rotating mechanism; the welding strip handling mechanism is mounted on the lower end of the handling bracket, and the welding strip handling mechanism and the handling bracket are detachably connected. The welding strip handling mechanism includes grippers and pressure needle fixtures; the grippers include a first clamping plate and a second clamping plate arranged relatively parallel to each other; the pressure needle fixture includes a pressure needle part located below the grippers and pressing parts located on both sides of the pressure needle part. This device can prevent the welding strip from shifting relative to the grid lines of the battery cell during placement, thus improving welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of welding strip handling technology, and more specifically, relates to a welding strip handling device. Background Technology

[0002] Current solutions primarily handle round solder strips by clamping them with grippers. Another method involves slotting the solder strip within a slot, but releasing it can cause misalignment. In traditional battery string welding processes, due to the large number of solder strips, the handling mechanism typically clamps both ends of each strip, while a guide component limits the middle portion. However, because the solder strips are thin and flexible, if the opening on the guide component is too small, it cannot guarantee that each strip will pass precisely through it. If the opening is too large, some strips can easily shift and detach from the cell grid lines during release. When these misaligned strips are welded to the grid lines, the electrical conductivity between the strip and the grid lines is poor. Utility Model Content

[0003] This invention provides a welding strip handling device that prevents the welding strip from shifting relative to the grid lines of the battery cell during placement, thereby improving welding quality.

[0004] This utility model discloses a welding strip handling device, comprising a horizontal handling mechanism, a linear module, a rotating mechanism, a handling bracket, and a welding strip handling mechanism. The horizontal handling mechanism is mounted on a fixed mounting surface for horizontal movement. The linear module is mounted on the output end of the horizontal handling mechanism for vertical movement. The rotating mechanism is mounted on the lower end of the linear module for fine-tuning the angle around the rotation center. The handling bracket is connected to the output end of the rotating mechanism. The welding strip handling mechanism is mounted on the lower end of the handling bracket, and the welding strip handling mechanism and the handling bracket are detachably connected. The welding strip handling mechanism includes grippers and pressure needle fixtures. The grippers include a first clamping plate and a second clamping plate arranged relatively parallel to each other, which slide towards each other to jointly clamp the welding strip. The pressure needle fixture includes a pressure needle part located below the grippers and a pressing part located on both sides of the pressure needle part, which together form a welding strip limiting space. When the grippers close to clamp the welding strip, the pressure needle part presses down to fix the welding strip simultaneously. When the welding strip is released, the pressure needle part releases before the grippers.

[0005] As a further improvement of this utility model, the lateral conveying mechanism includes a lateral chain and a lateral drive component; the output end of the lateral drive component is engaged with the lateral chain and is used to drive the linear module to move laterally.

[0006] As a further improvement of this utility model, the linear module includes an X-axis chain and a linear drive component; the output end of the linear drive component is engaged with the X-axis chain and is used to drive the transport bracket to move in the vertical direction.

[0007] As a further improvement of this utility model, the welding strip handling mechanism also includes a guide plate, and a guide post is provided through the end face of the guide plate; both the first clamping plate and the second clamping plate are provided with clamping cavities that match the guide post, so that the clamping plates slide open and close along the guide post.

[0008] As a further improvement of this utility model, the welding strip handling mechanism also includes a gripper drive; the gripper drive includes a drive clamping plate, a drive component, and a gripper movable plate that is linked with the drive component; the gripper movable plate slides with the limiting movable block through the movable cavity, driving the gripper to move synchronously, so that the gripper is linked with the pressure needle tooling through the gripper drive.

[0009] As a further improvement of this utility model, the movable cavity is an arc-shaped groove structure, and the limiting movable block is fixed between the second connecting plate and the third connecting plate; the limiting movable block is embedded in the movable cavity, so that the gripper movable plate moves along the arc-shaped trajectory.

[0010] As a further improvement of this utility model, the rotating mechanism includes a rotating drive component and an output rod. The output rod is connected to the transport bracket and is used to drive the welding strip transport mechanism to perform rotational fine-tuning.

[0011] As a further improvement of this utility model, the pressure needle fixture also includes an electromagnet and a fixture assembly; the electromagnet is fixedly installed at the lower end of the third connecting plate of the welding strip conveying mechanism; the fixture assembly is located directly below the electromagnet; the pressure needle part is located in the middle of the fixture assembly, and the pressing part extends on both sides; when the electromagnet is energized, it attracts the fixture assembly, causing the pressure needle part to press down on the welding strip.

[0012] As a further improvement of this utility model, the pressure needle tooling also includes a pressure needle drive component; the output end of the pressure needle drive component is vertically connected to the pressure needle plate; the lower end of the pressure needle plate is equipped with a welding strip pressure needle, which is used to press the welding strip a second time when the tooling assembly is pressed down.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Through the coordinated design of the gripper and pressure needle fixture, the pressure needle synchronously presses down on the solder strip when the gripper closes, preventing the solder strip from shifting or falling off during handling due to shaking or insufficient clamping force. When releasing the solder strip, the pressure needle first resets away from the solder strip, and then the gripper opens, avoiding interference with the solder strip position caused by sudden release of the gripper. Combined with the fine-tuning function of the rotating mechanism and the precise movement of the linear module, the solder strip is always aligned with the cell grid lines, significantly improving welding quality and electrical conductivity, and solving the technical problems of solder strip shifting and falling off in traditional handling devices. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2This is a three-dimensional structural diagram of the handling gripper of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention with the gripper portion removed.

[0018] Explanation of the labels in the diagram:

[0019] 1. Lateral conveying mechanism, 11. Lateral chain, 2. Linear module, 21. X-axis chain, 22. Linear drive component, 3. Support plate, 4. Rotating mechanism, 5. Conveying bracket, 6. Welding strip conveying mechanism, 6. First connecting plate, 611. First connecting part, 612. Second connecting part, 62. Third connecting plate, 63. Limiting block, 631. Electromagnet, 64. Tooling assembly, 65. Pressing pin part, 651. Pressing part, 652. Gripper moving plate, 66. Moving cavity, 661. Linking component, 67. Guide plate, 68. Guide post, 681. Gripper, 69. First clamping plate, 691-1. Second clamping plate, 692. Second clamping block, 692-1. Gripper drive, 71. Drive clamping plate, 711. Pressing block, 72. Drive component, 8. Pressing pin tooling, 81. Detailed Implementation

[0020] Specific Implementation Example 1: Please refer to Figures 1-3 A welding strip handling device includes a transverse handling mechanism 1, a linear module 2, a support plate 3, a rotating mechanism 4, a handling bracket 5, a welding strip handling mechanism 6, a gripper drive 7, and a pressure needle fixture 8.

[0021] The lateral transport mechanism 1 is mounted on a mounting surface, which can be a wall. The linear module 2 is mounted in the middle of the lateral transport mechanism 1, and the linear module 2 is detachably connected to the lateral transport mechanism 1.

[0022] The support plate 3 is installed at the lower end of the linear module 2, and the rotating mechanism 4 is installed on the support plate 1. It is linked to the lower end of the transport bracket 5. The bottom welding strip transport mechanism 6 can be driven by the drive motor to rotate and make fine adjustments around the rotation center. When grabbing and placing the welding strip, it can ensure that the welding strip is accurately aligned with the grid lines of the battery cell.

[0023] The welding strip handling mechanism 6 is installed at the lower end of the handling bracket 5, and multiple sets of the welding strip handling mechanism 6 are provided, all of which are arranged at equal intervals.

[0024] The gripper drive 7 is installed inside the ribbon transport mechanism 6 to drive and control the ribbon transport mechanism 6 to perform clamping operations. The pressure needle fixture 8 is also installed inside the ribbon transport mechanism 6 to guide the ribbon during transport.

[0025] Specifically, the lateral conveying mechanism 1 includes a horizontally erected frame, and a lateral drive component is installed inside the frame. A lateral chain 11 is installed at the upper end of the frame of the lateral conveying mechanism 1, and the output end of the lateral drive component is connected to the lateral chain 11 to control the lateral movement of the lateral chain 11.

[0026] Specifically, the linear module 2 is connected to the output end of the transverse conveying mechanism 1, so as to drive the linear module 2 to move laterally via the transverse chain 11. The linear module 2 includes a linear frame, an X-axis chain 21, and a linear drive component 22. The linear frame is connected to the output end of the transverse conveying mechanism 1, and the X-axis chain 21 is mounted on one side of the linear frame. The output end of the linear drive component 22 is connected to the X-axis chain 21, so as to control the linear frame to move vertically. A support plate 3 is mounted on the lower end of the linear module 2, and a rotating mechanism 4 is mounted on the support plate 3. The rotating mechanism 4 is connected to the lower welding strip conveying mechanism 6, and the rotating mechanism 4 includes a rotating drive component and an output rod. The output rod is connected to the lower welding strip conveying mechanism 6, so as to control the output rod to make minor adjustments to the rotation of the welding strip conveying mechanism 6 around the rotation center via the rotating drive component.

[0027] Specifically, the conveying bracket 5 is installed at the lower end of the support plate 3, and the welding strip conveying mechanism 6 is installed at the lower end of the conveying bracket 5. The welding strip conveying mechanism 6 includes a first connecting plate 61, a second connecting plate 62, a third connecting plate 63, an electromagnet 64, a tooling assembly 65, a gripper movable plate 66, a linkage component 67, a guide plate 68, and grippers 69. The first connecting plate 61 includes a first connecting portion 611 and a second connecting portion 612, which are detachably installed on both sides of the conveying bracket 5. The second connecting plate 62 is installed at the lower end of the first connecting plate 61, and multiple support rods are provided between the second connecting plate 62 and the first connecting plate 61 to support the first connecting plate 61 and the second connecting plate 62. A mounting cavity for the gripper drive 7 is formed between the first connecting plate 61 and the second connecting plate 62. Meanwhile, a third connecting plate 63 is installed at the lower end of the second connecting plate 61. A limiting movable block 631 is provided in the middle of the third connecting plate 63 and the second connecting plate 62; in this embodiment, two such blocks are provided. A chamber for the gripper drive 7 to pass through is formed between the second connecting plate 62 and the third connecting plate 63. Electromagnets 64 are respectively disposed on both sides of the lower end of the third connecting plate 63. When energized, the electromagnets 64 have the ability to attract the tooling assembly 65. The tooling assembly 65 is installed at the lower end of the electromagnet 64. A pressure pin portion 651 is provided in the middle of the tooling assembly 65, and multiple pressure pins are provided in the pressure pin portion 651 for pressing the welding strip onto the battery cell. A pressing portion 652 is provided on both sides of the tooling assembly 65, and a metal part that attracts the electromagnet 64 is provided at the lower end of the pressing portion 652, so that the electromagnet 64 attracts the metal part while simultaneously clamping the pressing portion 652 within it. The gripper movable plate 66 is sleeved on the limiting movable block 631, and the gripper movable plate 66 is provided with a movable cavity 661 corresponding to the position of the limiting movable block 631. The movable cavity 661 forms an arc-shaped groove, and the inner circumference of the movable cavity 661 matches the limiting movable block 631, allowing the limiting movable block 631 to move within the path of the movable cavity 661. In this embodiment, two linkage members 67 are provided, each located at one end of the gripper movable plate 66, moving with the movement of the gripper movable plate 66. The guide plate 68 is detachably connected to the two linkage members 67, and a plurality of guide posts 681 are provided through the body of the guide plate 68. The gripper 69 encloses the guide post 681 and is mounted on the side of the pressure needle tool 8. The gripper 69 includes a first clamping plate 691 and a second clamping plate 692. The side of the first clamping plate 691 is provided with a plurality of first clamping blocks 691-1, and the side of the second clamping plate 692 is provided with a plurality of second clamping blocks 692-1. Each first clamping block 691-1 and each second clamping block 692-1 are arranged opposite to each other and form a clamping cavity that matches the guide post 681. The clamping cavity matches the welding strip.

[0028] Specifically, the gripper drive 7 includes a movable output rod, a drive clamping plate 71, and a drive member 72. The movable output rod is clamped within the drive clamping plate 71, which is mounted on the wall of the drive member 72. The drive member 72 is positioned between the first connecting plate 61 and the second connecting plate 62. The output end of the drive member 72 is connected to the movable output rod. A clamping block 711 is provided on the outer side of the drive clamping plate 71, clamping the movable output rod. The clamping block 711 can move with the movable output rod and abuts against the gripper movable plate 66, thereby enabling the gripper movable plate 66 to move within the movable cavity 661.

[0029] Specifically, the pressure needle fixture 8 is installed on the upper end of the fixture assembly 65, and the pressure needle fixture 8 includes a pressure needle drive, a pressure needle plate and a welding strip pressure needle 81. The output end of the pressure needle drive is connected to the pressure needle plate so as to control the movement of the pressure needle plate and press the welding strip pressure needle 81 through the pressure needle drive.

[0030] It should be noted that after the welding strip transport mechanism 6 is closed, the pressure needle part 651 can continue to move downward along the vertical movable cavity 611 to press the welding strip. When it is necessary to open and release the welding strip, the gripper drive cylinder first drives the welding strip pressure needle to move away from the welding strip according to the trajectory of the movable cavity 611. When it reaches the far end of the movable cavity 611, the two grippers start to move away in opposite directions. When the distance away is greater than the width of the welding strip, the welding strip falls onto the welding line, and the welding strip placement work is completed. At this time, the welding strip pressure needle 81 keeps pressing against the welding strip; the pressure needle drive component drives the pressure needle plate to move downward. When the tooling assembly 65 completely presses the welding strip, the electromagnet 64 is de-energized to release the tooling. After the tooling is released, the entire linear module 2 moves upward away from the welding line. After completing this action, the linear module 2 returns to the welding strip gripping position. After returning to the welding strip gripping position, the linear module 2 drives the pressure needle part 651 to move downward to the gripping position. During this process, the tooling drives the pressure needle drive component and the drive component 72 back to the initial position. Upon reaching the gripping position, electromagnet 64 moves downward and is energized to grip the welding strip. Drive unit 72 drives gripper 69 to close, and pressure needle moves downward. After the gripper closes and grips the welding strip, it presses down on the welding strip to prevent it from falling during transport. After this action is completed, linear module 2 moves upward, and transverse transport mechanism 1 moves to the welding strip placement position to place the welding strip. This process of gripping and releasing the welding strip is repeated.

[0031] Working principle:

[0032] The welding strip and tooling handling device moves laterally via the lateral chain and lateral drive of the lateral handling mechanism, while the X-axis chain and linear drive of the linear module control vertical movement. The rotation drive of the rotating mechanism drives the handling bracket and welding strip handling mechanism to perform rotational fine-tuning via the output rod. When the grippers (including the first and second grippers) of the welding strip handling mechanism hold the welding strip, the pressure needle part of the pressure needle tooling simultaneously presses down to fix the welding strip. When releasing the welding strip, the pressure needle part first moves away from the welding strip along the trajectory of the movable cavity, and then the grippers open to ensure that the welding strip is accurately placed on the battery cell grid line and avoids deviation.

Claims

1. A solder strip handling device, characterized in that include: Lateral transport mechanism (1), linear module (2), rotating mechanism (4), transport bracket (5) and welding strip transport mechanism (6); The lateral conveying mechanism (1) is installed on a fixed mounting surface and is used for lateral movement; The linear module (2) is installed at the output end of the transverse conveying mechanism (1) to realize vertical movement; The rotating mechanism (4) is installed at the lower end of the linear module (2) and is used for fine-tuning the angle around the rotation center; The transport bracket (5) is connected to the output end of the rotating mechanism (4); The welding strip handling mechanism (6) is installed at the lower end of the handling bracket (5), and the welding strip handling mechanism (6) is detachably connected to the handling bracket (5); the welding strip handling mechanism (6) includes a gripper (69) and a pressure needle tool (8). The gripper (69) includes a first clamping plate (691) and a second clamping plate (692) arranged in parallel with each other. The first clamping plate (691) and the second clamping plate (692) slide towards each other to jointly clamp the welding strip. The needle pressing fixture (8) includes a needle pressing part (651) located below the gripper (69) and a pressing part (652) located on both sides of the needle pressing part (651). The needle pressing part (651) and the pressing part (652) together form a welding strip limiting space. When the gripper (69) closes to hold the welding strip, the pressure needle (651) presses down to fix the welding strip simultaneously; when the welding strip is released, the pressure needle (651) is released before the gripper (69).

2. A strip handling device according to claim 1, characterized in that: The lateral conveying mechanism (1) includes a lateral chain (11) and a lateral drive component; the output end of the lateral drive component is engaged with the lateral chain (11) to drive the linear module (2) to move laterally.

3. A strip handling device according to claim 1, characterized in that: The linear module (2) includes an X-axis chain (21) and a linear drive (22); the output end of the linear drive (22) is engaged with the X-axis chain (21) to drive the transport bracket (5) to move in the vertical direction.

4. A strip handling device according to claim 1, characterized in that: The welding strip handling mechanism (6) also includes a guide plate (68), and a guide post (681) is provided through the end face of the guide plate (68); the first clamping plate (691) and the second clamping plate (692) are both provided with clamping cavities that match the guide post (681), so that the clamping plates slide open and close along the guide post (681).

5. A strip handling device according to claim 1, characterized in that: The welding strip handling mechanism (6) also includes a gripper drive (7); the gripper drive (7) includes a drive clamping plate (71), a drive component (72) and a gripper movable plate (66) linked with the drive component (72); the gripper movable plate (66) slides with the limit movable block (631) through the movable cavity (661) to drive the gripper (69) to move synchronously, so that the gripper (69) is linked with the pressure needle tooling (8) through the gripper drive (7).

6. The welding strip handling device according to claim 5, characterized in that: The movable cavity (661) is an arc-shaped groove structure. The limiting movable block (631) is fixed between the second connecting plate (62) and the third connecting plate (63). The limiting movable block (631) is embedded in the movable cavity (661), so that the gripper movable plate (66) moves along the arc-shaped trajectory.

7. A strip handling device according to claim 1, characterized in that: The rotating mechanism (4) includes a rotating drive and an output rod. The output rod is connected to the transport bracket (5) and is used to drive the welding strip transport mechanism (6) to perform rotational fine-tuning.

8. A solder strip handling device according to claim 1, characterized in that: The pressure needle fixture (8) also includes an electromagnet (64) and a fixture assembly (65); the electromagnet (64) is fixedly installed at the lower end of the third connecting plate (63) of the welding strip transport mechanism (6); the fixture assembly (65) is located directly below the electromagnet (64); the pressure needle part (651) is located in the middle of the fixture assembly (65), and the pressing part (652) extends on both sides; when the electromagnet (64) is energized, it attracts the fixture assembly (65), causing the pressure needle part (651) to press down on the welding strip.

9. A strip handling device according to claim 8, characterized in that: The needle press fixture (8) also includes a needle press drive; the output end of the needle press drive is vertically connected to the needle press plate; the lower end of the needle press plate is equipped with a welding strip needle (81) for secondary pressure on the welding strip when the fixture assembly (65) is pressed down.

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