Steel band welding device for bundling battery module

Abstract

The application is suitable for the technical field of battery processing, and provides a steel band welding device for bundling battery modules, which comprises a supporting shell, a workbench is fixedly installed on the top of the supporting shell, a first slotted hole is formed in the workbench, a sliding rod is fixedly installed on the inner wall of the first slotted hole, a sliding block is slidingly installed on the sliding rod, a welding machine is fixedly installed on the top of the sliding block, and the welding machine is used for welding the steel band for bundling the battery modules; two first clamping plates and two electric push rods are fixedly installed on the top of the workbench, and a second clamping plate for clamping the steel band is fixedly installed on the output rod of each electric push rod. The steel band welding device for bundling battery modules provided in the scheme solves the problem that the bending and welding processes of the existing battery steel band are separated, thereby increasing the processing time and affecting the work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of battery processing technology, and in particular relates to a steel strip welding device for bundling battery modules. Background Technology

[0002] New energy battery module manufacturing is the production process of assembling battery cells into a complete functional battery module through processes such as structural fixation, electrical connection, thermal management, and safety protection. Steel strapping is a key process for fixing and reinforcing the module. This process relies on the steel straps to provide continuous pre-tension force, suppressing the 3%-8% thickness expansion of the battery cells during charging and discharging, and preventing deformation and failure of the battery module.

[0003] The existing processing steps for bundling steel strips for battery modules include cutting and bending. After the steel strip is bent into a U-shape, heat shrink tubing needs to be fitted onto the outside of the steel strip. Then, the two ends of the steel strip are bent and welded to finally form a rectangular frame structure that can bundle battery modules. Although the above processing method can achieve the forming of the bundling steel strip, in the existing processing method, after the heat shrink tubing is fitted, the bending and welding operations at both ends of the steel strip are carried out by two different machines. This leads to an increase in processing time and affects work efficiency.

[0004] Therefore, it is necessary to provide a steel strip welding device for bundling battery modules to solve the above problems. Summary of the Invention

[0005] This invention provides a steel strip welding device for bundling battery modules, aiming to solve the problem mentioned in the background art that the bending and welding processes of existing battery steel strips are separated, resulting in increased processing time and reduced work efficiency.

[0006] To address the aforementioned problems, this invention proposes a steel strip welding device for bundling battery modules, comprising: a support shell, a worktable fixedly mounted on the top of the support shell, a first strip-shaped hole formed on the worktable, a slide rod fixedly mounted on the inner wall of the first strip-shaped hole, a slider slidably mounted on the slide rod, a welding machine fixedly mounted on the top of the slider, the welding machine being used to weld the steel strip for bundling battery modules; two first clamping plates and two electric push rods fixedly mounted on the top of the worktable, each of the output rods of the two electric push rods having a second clamping plate fixedly mounted for clamping the steel strip; a bending mechanism assembled on the worktable, the bending mechanism being used to bend the end of the steel strip, and a common moving mechanism for moving the welding machine being provided between the bending mechanism and the slider.

[0007] Preferably, the bending mechanism includes: a second strip-shaped hole formed on the worktable; a servo motor fixedly installed at the bottom of the worktable, a bidirectional screw fixedly installed on the output shaft of the servo motor, two connecting blocks threaded on the bidirectional screw, pressure rollers for bending the ends of the steel strip rotatably installed on the top of the two connecting blocks, and the two connecting blocks slidingly connected to the inner wall of the second strip-shaped hole.

[0008] Preferably, the steel strip welding device for bundling battery modules further includes a limiting mechanism installed on the workbench, the limiting mechanism being used to position the steel strip.

[0009] Preferably, the limiting mechanism includes: a third strip-shaped hole formed on the worktable, a lead screw rotatably mounted on the inner wall of the third strip-shaped hole, one end of the lead screw extending to the outside of the worktable and fixedly mounted with a handwheel; a limiting block threaded onto the lead screw, the limiting block being slidably connected to the inner wall of the third strip-shaped hole, and a limiting plate fixedly mounted on the top of the limiting block.

[0010] Preferably, a plurality of heat dissipation holes are provided on one side of the support shell, and the plurality of heat dissipation holes are used to dissipate the heat of the servo motor.

[0011] Preferably, a controller is fixedly installed on one side of the support shell, and the controller is used to control the electric push rod, the servo motor and the welding machine in sequence.

[0012] Preferably, a toolbox for placing items is fixedly installed on the edge of the workbench, and the toolbox is located above the support shell.

[0013] Preferably, two support plates for supporting the bidirectional screw are fixedly installed at the bottom of the workbench, and both support plates are rotatably connected to the bidirectional screw.

[0014] Compared with related technologies, the steel strip welding device for bundling battery modules provided by the present invention has the following advantages:

[0015] Compared with existing technologies, the steel strip welding device for bundling battery modules provided in this solution integrates the bending and welding processes of the steel strip end into a single machine through the linkage of the bending and moving mechanisms. This eliminates the workpiece transfer process between different machines, improving the processing efficiency of steel strip bending and welding. It effectively solves the problem of increased processing time and reduced work efficiency caused by the separate bending and welding processes of existing battery steel strips. With the clamping of two first clamping plates and two second clamping plates, the device can keep the steel strip in a stable state during processing to prevent displacement during bending. The use of a limiting mechanism can reliably position U-shaped steel strips of different lengths, while also improving the versatility of the device. Attached Figure Description

[0016] Figure 1 This is a front view three-dimensional structural schematic diagram of a steel strip welding device for bundling battery modules provided by the present invention;

[0017] Figure 2 This is a side-view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a bottom-view three-dimensional structural diagram of a steel strip welding device for bundling battery modules provided by the present invention;

[0019] Figure 4 This is a schematic diagram showing the separated state of the support shell and the worktable in this invention;

[0020] Figure 5 for Figure 4 The diagram shows an enlarged view of part A.

[0021] Figure label:

[0022] 1. Support shell; 2. Worktable; 3. First strip hole; 4. Slide rod; 5. Slider; 6. Welding machine; 7. First clamping plate; 8. Electric push rod; 9. Second clamping plate;

[0023] 10. Bending Mechanism: 101. Second strip hole; 102. Servo motor; 103. Bidirectional screw; 104. Connecting block; 105. Pressure roller;

[0024] 11. Moving Mechanism: 111. Frame; 112. Limiting Rod; 113. Spring; 114. Baffle; 115. Rectangular Plate; 116. Sliding Groove; 117. Fixing Block; 118. Column;

[0025] 12. Support plate;

[0026] 13. Limiting Mechanism: 131. Third strip hole; 132. Lead screw; 133. Limiting block; 134. Limiting plate;

[0027] 14. Ventilation holes; 15. Controller; 16. Tool box. Detailed Implementation

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] This invention provides a steel strip welding device for bundling battery modules, such as... Figure 1-5 As shown, the steel strip welding device for bundling battery modules includes: a support shell 1, a workbench 2 fixedly mounted on the top of the support shell 1, a first strip hole 3 opened on the workbench 2, a slide rod 4 fixedly mounted on the inner wall of the first strip hole 3, a slider 5 slidably mounted on the slide rod 4, a welding machine 6 fixedly mounted on the top of the slider 5, the welding machine 6 being used to weld the steel strip for bundling battery modules; two first clamping plates 7 and two electric push rods 8 fixedly mounted on the top of the workbench 2, each of the output rods of the two electric push rods 8 having a second clamping plate 9 fixedly mounted on it for clamping the steel strip; a bending mechanism 10 assembled on the workbench 2, the bending mechanism 10 being used to bend the end of the steel strip, and a moving mechanism 11 for moving the welding machine 6 being provided between the bending mechanism 10 and the slider 5.

[0030] In this embodiment, when the device is working, the U-shaped steel strip with the heat shrink tubing attached is first placed at the designated processing position on the workbench 2. Two electric push rods 8 drive the corresponding second clamping plates 9 to work in conjunction with the two first clamping plates 7 on the workbench 2 to clamp and position the steel strip bidirectionally, achieving stable positioning during processing and preventing displacement during bending. After positioning, the bending mechanism 10 is activated to bend and shape both ends of the steel strip. Simultaneously, the bending mechanism 10 triggers the movement mechanism 11, which is linked to it, causing the movement mechanism 11 to synchronously drive the slider 5 to slide on the slide rod 4. The slider 5 also... The slider 5 moves stably in contact with the first strip hole 3, and the welding machine 6 moves synchronously. After bending both ends of the steel strip, as long as the pressure roller 105 on the bending mechanism 10 moves a certain distance, the welding head of the welding machine 6 can contact the bent and broken ends. Then the welding machine 6 is started to automatically weld the steel strip at the bending and joining position. Through the linkage between the bending mechanism 10 and the moving mechanism 11, the integrated continuous operation of the steel strip end bending and welding process is realized. There is no need for process transfer between equipment, which can greatly shorten the steel strip forming and processing time and effectively improve the overall processing efficiency of the battery module bundling steel strip.

[0031] In a further preferred embodiment of the present invention, the bending mechanism 10 includes: a second strip-shaped hole 101 formed on the workbench 2; a servo motor 102 fixedly installed at the bottom of the workbench 2, a bidirectional screw 103 fixedly installed on the output shaft of the servo motor 102, two connecting blocks 104 threadedly installed on the bidirectional screw 103, and pressure rollers 105 for bending the ends of steel strips rotatably installed on the top of each of the two connecting blocks 104, and both connecting blocks 104 are slidably connected to the inner wall of the second strip-shaped hole 101.

[0032] In this embodiment, when the bending mechanism 10 is working, the servo motor 102 provides power output, driving the bidirectional screw 103 connected to the output shaft to rotate in the forward or reverse direction. Utilizing the transmission characteristics of the two reverse threads on the bidirectional screw 103, the two threaded connecting blocks 104 are driven to slide synchronously towards or away from each other along the inside of the second slotted hole 101. The second slotted hole 101 provides sliding limit and guidance for the connecting blocks 104, ensuring the smoothness and accuracy of the movement of the connecting blocks 104. During the movement of the connecting block 104, the top rotating pressure roller 105 is simultaneously displaced, so that the two pressure rollers 105 on both sides respectively fit against the two ends of the steel strip and apply a squeezing force. Through the squeezing cooperation of the pressure rollers 105 and their own rotation to adapt to the bending deformation process of the steel strip, the end bending processing of the two ends of the steel strip is completed smoothly. It should be noted that the two pressure rollers 105 are at different distances from the center position of the second strip hole 101. Therefore, the two pressure rollers 105 will bend the two ends of the steel strip in turn to prevent the two ends of the steel strip from colliding during the bending process.

[0033] In a further preferred embodiment of the present invention, the steel strip welding device for bundling battery modules further includes a limiting mechanism 13 installed on the workbench 2, the limiting mechanism 13 being used to position the steel strip.

[0034] In this embodiment, the use of the limiting mechanism 13 can restrict the position of steel strips of different lengths, so that steel strips of different lengths can be processed on the device.

[0035] In a further preferred embodiment of the present invention, the limiting mechanism 13 includes: a third strip-shaped hole 131 formed on the workbench 2, a lead screw 132 rotatably mounted on the inner wall of the third strip-shaped hole 131, one end of the lead screw 132 extending to the outside of the workbench 2 and fixedly mounted with a handwheel; a limiting block 133 threadedly mounted on the lead screw 132, the limiting block 133 being slidably connected to the inner wall of the third strip-shaped hole 131, and a limiting plate 134 fixedly mounted on the top of the limiting block 133.

[0036] In this embodiment, when the limiting mechanism 13 is in use, the screw 132 is rotated by handwheel. The screw 132 will drive the limiting block 133 to slide on the third strip hole 131. The limiting block 133 will drive the limiting plate 134 to move, so that the limiting plate 134 moves closer to or further away from the first clamping plate 7. After adjustment, the limiting plate 134 can position the U-shaped steel strip to be processed with the cooperation of the two first clamping plates 7. Figure 1 As shown, the adjustment is relatively convenient, which can improve the versatility of the device.

[0037] In a further preferred embodiment of the present invention, a plurality of heat dissipation holes 14 are provided on one side of the support shell 1, and the plurality of heat dissipation holes 14 are used to dissipate the heat of the servo motor 102.

[0038] In this embodiment, the use of multiple heat dissipation holes 14 can dissipate the heat generated by the servo motor 102 during operation, effectively preventing the heat of the servo motor 102 from remaining in the support shell 1.

[0039] In a further preferred embodiment of the present invention, a controller 15 is fixedly installed on one side of the support shell 1. The controller 15 is used to control the electric push rod 8, the servo motor 102 and the welding machine 6 in sequence.

[0040] In this embodiment, the use of controller 15 enables sequential programmed control of electric push rod 8, servo motor 102 and welding machine 6. It can strictly follow the steel strip processing process to complete the automated linkage operation of clamping and positioning, end bending and welding forming processes in an orderly manner, replacing the traditional manual step-by-step operation and independent start and stop of equipment processing mode. It can greatly improve the automation level and process continuity of the whole steel strip clamping and positioning, end bending and welding process.

[0041] In a further preferred embodiment of the present invention, a tool box 16 for placing items is fixedly installed on the edge of the workbench 2, and the tool box 16 is located above the support shell 1.

[0042] In this embodiment, the toolbox 16 can be used to store the maintenance tools and supplies for the device, as well as to place the operator's personal belongings.

[0043] In a further preferred embodiment of the present invention, two support plates 12 for supporting the bidirectional screw 103 are fixedly installed at the bottom of the workbench 2, and both support plates 12 are rotatably connected to the bidirectional screw 103.

[0044] In this embodiment, the use of two support plates 12 can improve the stability of the bidirectional screw 103 during use, and at the same time, they can share the weight of the bidirectional screw 103 with the servo motor 102, thus providing a certain degree of protection for the servo motor 102.

[0045] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments:

[0046] In another embodiment of the present invention, the moving mechanism 11 includes: a frame 111 fixedly installed on one side of the slider 5, two limiting rods 112 slidably installed on the frame 111, and springs 113 slidably sleeved on each of the two limiting rods 112, both springs 113 being located inside the frame 111; a baffle 114 fixedly installed at one end of the two limiting rods 112, one side of the baffle 114 contacting one end of the two springs 113; a rectangular plate 115 fixedly installed on the two limiting rods 112, the rectangular plate 115 having a sliding groove 116; and a fixing block 117 fixedly installed on one side of one of the connecting blocks 104, the bottom of the fixing block 117 having a column 118 fixedly installed, the column 118 being slidably connected to the inner wall of the sliding groove 116.

[0047] In this embodiment, when the corresponding connecting block 104 on the bending mechanism 10 moves laterally, it will drive the fixing block 117 and column 118 fixed to one side of the connecting block 104 to move synchronously. Utilizing the sliding engagement between the column 118 and the sliding groove 116 on the rectangular plate 115, the rectangular plate 115 is pushed to move, which in turn drives the baffle 114 to move through the limiting rod 112. The baffle 114 will push the frame 111 to move through the preload of the spring 113. The frame 111 will drive the slider 5 and the welding machine 6 to move horizontally, so that the welding head of the welding machine 6 can contact the end of the bent steel strip. Then the welding machine 6 can be started to weld the bent steel strip. When the welding head of the welding machine 6 contacts the end of the bent steel strip, the connecting block 104 will move a certain distance, which will cause the welding machine 6 to apply pressure to the end of the bent steel strip. At this time, the elastic buffer of the two springs 113 allows the baffle 114 to compress the two springs 113. Thus, when the welding machine 6 is subjected to greater pressure, the position of the slider 5 and the welding machine 6 will not change. After the bending process is completed, the bending mechanism 10 needs to run in reverse. At this time, the moving mechanism 11 also runs in reverse with the bending mechanism 10. The elastic rebound force of the two springs 113 can be used to drive each component to reset, so that the welding machine 6 automatically returns to the initial position, which is more convenient to use.

[0048] In summary, compared with related technologies, this device, through the linkage of the bending mechanism 10 and the moving mechanism 11, enables the integration of the steel strip end bending and welding processes into a single machine, eliminating the need for workpiece transfer between different machines. This improves the processing efficiency of steel strip bending and welding, effectively solving the problem of increased processing time and reduced work efficiency caused by the separate bending and welding processes of existing battery steel strips. The clamping of the two first clamping plates 7 and two second clamping plates 9 ensures the steel strip remains stable during processing, preventing displacement during bending. The use of the limiting mechanism 13 enables reliable positioning of U-shaped steel strips of different lengths, while also enhancing the device's versatility.

[0049] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A steel strip welding device for bundling battery modules, characterized in that, include: A support shell (1) is provided, and a workbench (2) is fixedly installed on the top of the support shell (1). A first strip hole (3) is provided on the workbench (2). A slide rod (4) is fixedly installed on the inner wall of the first strip hole (3). A slider (5) is slidably installed on the slide rod (4). A welding machine (6) is fixedly installed on the top of the slider (5). The welding machine (6) is used to weld the steel strips for bundling battery modules. Two first clamping plates (7) and two electric push rods (8) are fixedly installed on the top of the workbench (2). The output rods of the two electric push rods (8) are each fixedly installed with a second clamping plate (9) for clamping the steel strip. A bending mechanism (10) is mounted on the workbench (2). The bending mechanism (10) is used to bend the end of the steel strip. The bending mechanism (10) and the slider (5) are provided with the same moving mechanism (11) for moving the welding machine (6).

2. The steel strip welding device for bundling battery modules as described in claim 1, characterized in that, The bending mechanism (10) includes: A second strip hole (101) is formed on the workbench (2); A servo motor (102) is fixedly installed at the bottom of the workbench (2). A bidirectional screw (103) is fixedly installed on the output shaft of the servo motor (102). Two connecting blocks (104) are threaded on the bidirectional screw (103). A pressure roller (105) for bending the end of the steel strip is rotatably installed on the top of each of the two connecting blocks (104). Both connecting blocks (104) are slidably connected to the inner wall of the second strip hole (101).

3. The steel strip welding device for bundling battery modules as described in claim 1, characterized in that, The steel strip welding device for bundling battery modules also includes a limiting mechanism (13) installed on the workbench (2), which is used to position the steel strip.

4. The steel strip welding device for bundling battery modules as described in claim 3, characterized in that, The limiting mechanism (13) includes: A third strip hole (131) is opened on the workbench (2), and a lead screw (132) is rotatably installed on the inner wall of the third strip hole (131). One end of the lead screw (132) extends to the outside of the workbench (2) and is fixedly installed with a handwheel. A limiting block (133) is threaded onto the lead screw (132), the limiting block (133) is slidably connected to the inner wall of the third strip hole (131), and a limiting plate (134) is fixedly installed on the top of the limiting block (133).

5. The steel strip welding device for bundling battery modules as described in claim 2, characterized in that, The support shell (1) has multiple heat dissipation holes (14) on one side, and the multiple heat dissipation holes (14) are used to dissipate the heat of the servo motor (102).

6. The steel strip welding device for bundling battery modules as described in claim 2, characterized in that, A controller (15) is fixedly installed on one side of the support shell (1). The controller (15) is used to control the electric push rod (8), the servo motor (102) and the welding machine (6) in sequence.

7. The steel strip welding device for bundling battery modules as described in claim 1, characterized in that, A toolbox (16) for placing items is fixedly installed on the edge of the workbench (2), and the toolbox (16) is located above the support shell (1).

8. The steel strip welding device for bundling battery modules as described in claim 2, characterized in that, The bottom of the workbench (2) is fixedly equipped with two support plates (12) for supporting the bidirectional screw (103), and both support plates (12) are rotatably connected to the bidirectional screw (103).

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