Shaping mechanism for battery module welding

Abstract

The utility model provides a shaping mechanism for welding a battery module. The shaping mechanism comprises a rack; the welding base station is fixedly mounted on the rack and is used for supporting a battery module; the mechanical gripper is adjustably arranged on one side of the welding base station; and the hooking piece is movably installed on the machine frame, and when the mechanical gripper abuts against the welding base table and is in the shaping state, the hooking piece is hooked to the mechanical gripper so as to limit the mechanical gripper. According to the utility model, the hooking piece can limit the mechanical gripper when the mechanical gripper is in a shaping state, that is, the mechanical gripper applies an acting force towards the welding base station to the battery module; therefore, the situation that the structure of the mechanical gripper is unstable when the battery module is shaped due to the counter-acting force applied to the mechanical gripper by the battery module can be avoided, and the shaping effect of the battery module is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding, in particular to a shaping mechanism for battery module welding. Background Art

[0002] When side seam welding is performed on a square battery module, the side plate, end plate and cell group need to be transferred to a welding base, and shaping pressure needs to be applied to the battery module on the welding base in the direction of the welding base, and the battery module will react to the shaping equipment. In practice, mechanical grippers are often used to transfer the various components of the battery module, and at the same time, the mechanical grippers act as shaping equipment to apply force to the battery module, which makes the mechanical gripper structure unstable and has a poor shaping effect on the battery module. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shaping mechanism for battery module welding, which can avoid the structural instability of the mechanical gripper when shaping the battery module due to the reaction force applied by the battery module to the mechanical gripper, thereby ensuring the shaping effect of the battery module.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A shaping mechanism for battery module welding comprises: a frame; a welding base fixedly mounted on the frame and used to support the battery module; a mechanical gripper adjustably arranged on one side of the welding base; a hook member movably mounted on the frame, and when the mechanical gripper approaches the welding base and is in a shaping state, the hook member is hooked on the mechanical gripper to limit the position of the mechanical gripper.

[0006] According to a preferred embodiment, the hooking member includes a main body, on which a hooking protrusion is provided; the main body is mounted on the frame; and the mechanical gripper is provided with a hooking hole adapted to the hooking protrusion.

[0007] According to a preferred embodiment, the shaping mechanism for battery module welding also includes a reset member, which is assembled on the frame; the direction in which the mechanical gripper applies shaping pressure toward the welding base is defined as a first direction, and the main body is movably arranged relative to the welding base in the first direction; the reset member acts on the hook member so that the hook member has a tendency to move toward the welding base along the first direction; in the first direction, the welding base is located between the mechanical gripper and the hook member.

[0008] According to a preferred embodiment, a mounting seat is provided on the frame, and the welding base is assembled to the mounting seat; the main body is slidably connected to the mounting seat.

[0009] According to a preferred embodiment, the direction in which the mechanical gripper applies shaping pressure toward the welding base is defined as a first direction; a first slide rail is provided on the mounting seat, and the first slide rail extends along the first direction; and a first slider adapted to the first slide rail is provided on the main body.

[0010] According to a preferred embodiment, the reset member is a spring; a guide rod is provided on the main body, the guide rod is extended along the first direction, a guide hole coaxial with the guide rod is provided on the frame, and the guide rod is slidably embedded in the guide hole; the reset member is sleeved outside the guide rod, and the reset member is pressed between the main body and the frame.

[0011] According to a preferred embodiment, the mechanical gripper includes a frame plate, a side clamping plate and a pressure-applying portion, the side clamping plate and the pressure-applying portion are both mounted to the frame plate, the two side clamping plates are spaced apart, and the pressure-applying portion is located between the two side clamping plates; hook holes are provided on the side clamping plates; the two side clamping plates are used to clamp the battery module; when the mechanical gripper clamps the battery module close to the welding base, in a first direction, the hooking protrusion is located on the movement path of the side clamping plate along the first direction close to the welding base.

[0012] According to a preferred embodiment, the side clamping plate includes a fixed longitudinal plate and a movable longitudinal plate, the fixed longitudinal plate is arranged on the frame plate, the movable longitudinal plate is slidably connected to the fixed longitudinal plate, and the movable longitudinal plate can slide along the first direction relative to the fixed longitudinal plate; the pressure portion is installed on the movable longitudinal plate; and the hook hole is arranged on the movable longitudinal plate.

[0013] According to a preferred embodiment, a first limit member and a second limit member are provided on the fixed longitudinal plate; in the first direction, the first limit member is closer to the hook hole than the second limit member, and the movable longitudinal plate can slide within the area defined by the first limit member and the second limit member.

[0014] According to a preferred embodiment, a buffer member is provided between the second limiting member and the movable longitudinal plate.

[0015] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] The hook component of the utility model can limit the mechanical gripper when the mechanical gripper is in a shaping state, that is, when a force is applied to the battery module toward the welding base, thereby avoiding the structural instability of the mechanical gripper when shaping the battery module due to the reaction force applied to the mechanical gripper by the battery module, thereby ensuring the shaping effect of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a battery module welding shaping mechanism provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of a three-dimensional structure in which a welding base and a hook member provided in an embodiment of the utility model are assembled on a frame;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a mechanical gripper provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the assembly structure of the side clamping plate and the pressure applying portion provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of a first state of a mechanical gripper provided in an embodiment of the utility model approaching a welding base;

[0023] Figure 6 A schematic diagram of a second state of the mechanical gripper provided in an embodiment of the utility model approaching a welding base;

[0024] Figure 7 A schematic diagram of a third state of the mechanical gripper provided in an embodiment of the utility model approaching a welding base (the mechanical gripper is in a shaping state).

[0025] Icons: 1. Robotic arm; 2. Robotic gripper; 21. Frame plate; 22. Side clamp; 22a. Fixed longitudinal plate; 22a1. First limit member; 22a2. Second limit member; 22b. Moving longitudinal plate; 22b1. Fixed plate; 221. Hook hole; 222. First driving member; 223. Buffer member; 23. Pressure-applying part; 231. Second driving member; 241. Second slide rail; 242. Second slider; 3. Battery module; 4. Frame; 41. Mounting seat; 42. Guide hole; 5. Welding base; 6. Hook member; 61. Main body; 611. Guide rod; 62. Hook protrusion; 71. First slide rail; 72. First slider; 8. Reset member; X, first direction. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Please refer to Figures 1 to 7 , a shaping mechanism for battery module welding, comprising a frame 4, a welding base 5, a mechanical gripper 2 and a hook 6, wherein: the welding base 5 is fixedly mounted on the frame 4, for supporting the battery module 3; the mechanical gripper 2 is adjustably arranged on one side of the welding base 5; the hook 6 is movably mounted on the frame 4, and when the mechanical gripper 2 approaches the welding base 5 and is in a shaping state, the hook 6 is hooked on the mechanical gripper 2 to limit the position of the mechanical gripper 2. In this embodiment, the hook 6 can limit the mechanical gripper 2 when the mechanical gripper 2 is in a shaping state, that is, when a force is applied to the battery module 3 toward the welding base 5, thereby avoiding the occurrence of structural instability of the mechanical gripper 2 when shaping the battery module 3 due to the reaction force applied by the battery module 3 to the mechanical gripper 2, thereby ensuring the shaping effect of the battery module 3. It should be noted that in this embodiment, the shaping pressure applied by the mechanical gripper 2 to the battery module 3 acts on the pole of the battery module 3.

[0030] Specific as Figure 1 As shown, the robot arm 1 controls the mechanical gripper 2 to grab the battery module 3 and transfer it to the welding base 5 for shaping and cooperating with the end pressing mechanism and the side pressing mechanism (not shown in the figure) to fix the battery module 3 and then perform side seam welding. The end pressing mechanism and the side pressing mechanism here can be any existing end pressing mechanism and side pressing mechanism, so as to fix the end plate and the side plate of the battery module 3 and do not affect the shaping of the mechanical gripper 2.

[0031] like Figures 2 to 7 As shown, the hook member 6 includes a main body 61, on which a hook protrusion 62 is provided; the main body 61 is mounted on the frame 4; and the mechanical gripper 2 is provided with a hook hole 221 adapted to the hook protrusion 62. When in use, the hook protrusion 62 is snapped into the hook hole 221 to achieve the limit of the hook member 6 on the mechanical gripper 2.

[0032] Specifically, Figure 2 and 3 As shown, the robotic gripper 2 includes a frame plate 21, a side clamping plate 22 and a pressure portion 23. The side clamping plate 22 and the pressure portion 23 are both mounted to the frame plate 21. The two side clamping plates 22 are spaced apart. The pressure portion 23 is located between the two side clamping plates 22. The hook hole 221 is provided on the side clamping plate 22. The battery module 3 is clamped by the two side clamping plates 22 to cooperate with the robotic arm 1 to realize the transportation of the battery module 3.

[0033] Furthermore, if Figure 2 As shown, the frame plate 21 is provided with a first driving member 222 and a second slide rail 241, and the side clamping plate 22 is provided with a second slider 242 adapted to the second slide rail 241, and the first driving member 222 is used to drive the side clamping plate 22 to slide along the extension direction of the second slide rail 241. In this embodiment, the number of the first driving members 222 is two, which are correspondingly arranged to the two side clamping plates 22. It can be understood that the two first driving members 222 cooperate to drive the two side clamping plates 22 to move closer or farther away, so as to clamp or release the battery module 3.

[0034] In some embodiments, Figures 4 to 7 As shown, the side clamping plate 22 includes a fixed longitudinal plate 22a and a movable longitudinal plate 22b, the fixed longitudinal plate 22a is arranged on the frame plate 21, the movable longitudinal plate 22b is slidably connected to the fixed longitudinal plate 22a, and the movable longitudinal plate 22b can slide relative to the fixed longitudinal plate 22a along the first direction X; the pressure-applying portion 23 is installed on the movable longitudinal plate 22b; and the hook hole 221 is arranged on the movable longitudinal plate 22b. Specifically, a fixed plate 22b1 is arranged on the movable longitudinal plate 22b, and the pressure-applying portion 23 is assembled on the fixed plate 22b1 through a second driving member 231. The second driving member 231 can drive the pressure-applying portion 23 to move toward the welding base 5 along the first direction XX.

[0035] Furthermore, if Figure 4 As shown, the fixed longitudinal plate 22a is provided with a first limit member 22a1 and a second limit member 22a2; in the first direction X, the first limit member 22a1 is closer to the hook hole 221 than the second limit member 22a2, and the movable longitudinal plate 22b can slide in the area defined by the first limit member 22a1 and the second limit member 22a2.

[0036] Furthermore, a buffer member 223 is provided between the second position-limiting member 22a2 and the movable longitudinal plate 22b. Preferably, the buffer member 223 is a spring.

[0037] In this embodiment, the movable longitudinal plate 22b and the fixed longitudinal plate 22a are slidably connected via a slide rail and a slider mechanism.

[0038] When using, Figure 3 , 6 and Figure 7As shown, after the mechanical gripper 2 places the battery module 3 on the welding base 5, under the action of the first driving member 222, the two side clamps 22 move away from each other to loosen the battery module 3. At this time, the mechanical clamp moves downward along the first direction X until the hooking protrusion 62 is flush with the hooking hole 221 in the first direction X. At this time, under the action of the first driving member 222, the two side clamps 22 approach each other so that the hooking protrusion 62 is embedded in the hooking hole 221, thereby realizing the limiting of the mechanical gripper 2 by the hooking member 6 in the first direction X; finally, under the action of the second driving member 231, the pressure-applying portion 23 moves toward the battery module 3 along the first direction X until it abuts against the battery module 3, and applies a shaping pressure to the battery module 3. In this process, the battery module 3 reacts to the pressure-applying portion 23, and the movable longitudinal plate 22b moves upward relative to the fixed longitudinal plate 22a along the first direction X to eliminate the gap between the hooking hole 221 and the hooking protrusion 62. Because the hooking protrusion 62 cooperates with the hooking hole 221, the force of the battery module 3 acting on the pressure-applying portion 23 will not cause the mechanical gripper 2 to move away from the welding base 5, i.e., the battery module 3, along the first direction X, thereby ensuring the structural stability of the mechanical gripper 2 when working and the shaping effect of the mechanical gripper 2 on the battery module 3.

[0039] The shaping mechanism for battery module welding also includes a reset member 8, which is mounted on the frame 4. The direction in which the mechanical gripper 2 applies shaping pressure toward the welding base 5 is defined as the first direction X. The main body 61 is movably arranged relative to the welding base 5 in the first direction X. The reset member 8 acts on the hook member 6 so that the hook member 6 has a tendency to move toward the welding base 5 along the first direction X. In the first direction X, the welding base 5 is between the mechanical gripper 2 and the hook member 6. In this embodiment, preferably, under the action of the reset member 8, the hook member 6 abuts against the welding base 5. Figure 4 and Figure 5 As shown, when the mechanical gripper 2 clamps the battery module 3 close to the welding base 5, in the first direction X, the hooking protrusion 62 is on the movement path of the side clamping plate 22 along the first direction X close to the welding base 5. When the mechanical gripper 2 moves along the first direction X toward the welding base 5 to place the battery module 3, the side clamping plate 22 first abuts against the hooking protrusion 62. At this time, the hooking member 6 is pressed to move downward along the first direction X while compressing the reset member 8, which can buffer the mechanical gripper 2 and improve the safety of the shaping mechanism for battery module welding; at the same time, the movable longitudinal plate 22b slides upward along the first direction X relative to the fixed longitudinal plate 22a, and cooperates with the second limit member 22a2 to compress the buffer member 223; the buffer member 223 and the reset member 8 here work together to achieve flexible contact between the mechanical gripper 2 and the welding base 5. Further, as Figure 6 As shown, after the battery module 3 is placed on the welding base 5, the side clamp 22 releases the battery module 3, and the hook member 6 moves upward along the first direction X under the action of the reset member 8 until the hook protrusion 62 is flush with the hook hole 221; finally, as shown in FIG. Figure 7 As shown, the two side clamping plates 22 are brought close to each other until the hooking protrusion 62 is embedded in the hooking hole 221 , and the pressing part 23 can be used to press and shape the battery module 3 .

[0040] In this embodiment, a mounting seat 41 is provided on the frame 4 , and the welding base 5 is assembled to the mounting seat 41 ; the main body 61 is slidably connected to the mounting seat 41 .

[0041] Specifically, Figure 2 As shown, a first slide rail 71 is disposed on the mounting seat 41 , and the first slide rail 71 is extended along the first direction X; a first sliding block 72 adapted to the first slide rail 71 is disposed on the main body 61 .

[0042] In this embodiment, preferably, the reset member 8 is a spring; a guide rod 611 is provided on the main body 61, and the guide rod 611 is extended along the first direction X. A guide hole 42 coaxial with the guide rod 611 is provided on the frame 4, and the guide rod 611 is slidably embedded in the guide hole 42; the reset member 8 is sleeved outside the guide rod 611, and the reset member 8 is pressed between the main body 61 and the frame 4. The guide rod 611 here can improve the stability of the movement of the hook member 6, and can also improve the stability of the reset member 8, i.e., the spring.

[0043] In this embodiment, optionally, the first driving member 222 and the second driving member 231 are any one of a cylinder, a hydraulic cylinder or an electric push rod.

[0044] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A battery module welding shaping mechanism, characterized in that: include: Rack (4); A welding base (5) is fixedly mounted on the frame (4) and is used to support the battery module (3); A mechanical gripper (2) adjustably arranged on one side of the welding base (5); A hooking member (6) is movably mounted on the frame (4); when the mechanical gripper (2) is close to the welding base (5) and is in a shaping state, the hooking member (6) is hooked on the mechanical gripper (2) to limit the position of the mechanical gripper (2).

2. The battery module welding shaping mechanism according to claim 1, characterized in that: The hooking member (6) comprises a main body (61), and a hooking protrusion (62) is provided on the main body (61); The main body (61) is mounted on the frame (4); The mechanical gripper (2) is provided with a hook hole (221) adapted to the hook protrusion (62).

3. The battery module welding shaping mechanism according to claim 2, characterized in that: The battery module welding shaping mechanism further comprises a reset member (8), wherein the reset member (8) is mounted on the frame (4); The direction in which the mechanical gripper (2) applies shaping pressure toward the welding base (5) is defined as a first direction (X), and the main body (61) is movably arranged relative to the welding base (5) in the first direction (X); The reset member (8) acts on the hook member (6) so that the hook member (6) has a tendency to move along the first direction (X) toward the welding base (5); In the first direction (X), the welding base (5) is located between the mechanical gripper (2) and the hook (6).

4. The battery module welding shaping mechanism according to claim 2, characterized in that: The frame (4) is provided with a mounting seat (41), and the welding base (5) is assembled to the mounting seat (41); The main body (61) is slidably connected to the mounting seat (41).

5. The battery module welding shaping mechanism according to claim 4, characterized in that: The direction in which the mechanical gripper (2) applies shaping pressure toward the welding base (5) is defined as a first direction (X); The mounting seat (41) is provided with a first slide rail (71), and the first slide rail (71) is extended along the first direction (X); The main body (61) is provided with a first sliding block (72) adapted to the first sliding rail (71).

6. The battery module welding shaping mechanism according to claim 3, characterized in that: The reset member (8) is a spring; The main body (61) is provided with a guide rod (611), the guide rod (611) is extended along the first direction (X), the frame (4) is provided with a guide hole (42) coaxial with the guide rod (611), and the guide rod (611) is slidably embedded in the guide hole (42); The reset member (8) is sleeved outside the guide rod (611), and the reset member (8) is pressed between the main body (61) and the frame (4).

7. The battery module welding shaping mechanism according to any one of claims 2 to 6, characterized in that: The mechanical gripper (2) comprises a frame plate (21), a side clamping plate (22) and a pressure-applying portion (23), wherein the side clamping plate (22) and the pressure-applying portion (23) are both mounted on the frame plate (21), the two side clamping plates (22) are arranged at intervals, and the pressure-applying portion (23) is located between the two side clamping plates (22); A hook hole (221) is provided on the side clamping plate (22); The two side clamping plates (22) are used to clamp the battery module (3); When the mechanical gripper (2) clamps the battery module (3) close to the welding base (5), in the first direction (X), the hooking protrusion (62) is located on the movement path of the side clamping plate (22) approaching the welding base (5) along the first direction (X).

8. The battery module welding shaping mechanism according to claim 7, characterized in that: The side clamping plate (22) comprises a fixed longitudinal plate (22a) and a movable longitudinal plate (22b), wherein the fixed longitudinal plate (22a) is arranged on the frame plate (21), and the movable longitudinal plate (22b) is slidably connected to the fixed longitudinal plate (22a), and the movable longitudinal plate (22b) can slide relative to the fixed longitudinal plate (22a) along the first direction (X); The pressure applying portion (23) is mounted on the movable longitudinal plate (22b); The hook hole (221) is arranged on the movable longitudinal plate (22b).

9. The battery module welding shaping mechanism according to claim 8, characterized in that: The fixed longitudinal plate (22a) is provided with a first limiting member (22a1) and a second limiting member (22a2); In the first direction (X), the first limiting member (22a1) is closer to the hook hole (221) than the second limiting member (22a2), and the movable longitudinal plate (22b) can slide within the area defined by the first limiting member (22a1) and the second limiting member (22a2).

10. The battery module welding shaping mechanism according to claim 9, characterized in that: A buffer member (223) is provided between the second position-limiting member (22a2) and the movable longitudinal plate (22b).

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