Alignment-free spot welding jig for producing and processing battery module components

Abstract

The invention discloses an alignment-free spot welding jig for production and processing of battery module components, and relates to the technical field of battery modules, and the alignment-free spot welding jig comprises a rack, and a transmission assembly is arranged in the rack. According to the alignment-free spot welding jig for producing and processing the battery module components, switchable welding heads are adopted, the welding heads with different intervals are adopted to form a switching mechanism, the interval of the welding heads on one side is smaller than that of the welding heads on the other side, the interval of the welding heads on the other side is larger than that of the welding heads, and the appropriate welding heads can be selected according to the number and interval of batteries on a battery module; according to the welding device, alignment spot welding operation is not needed, synchronous and efficient welding operation can be conducted, when the battery modules are conveyed on the conveying belt for spot welding of the next row of batteries, the welding heads can stretch out and draw back, collision between the welding heads and the batteries is avoided, and in the conveying process, an exhaust fan in the dust collecting box can extract dust on the battery modules, so that the welding efficiency is improved. And under the condition that the switching mechanism is not used, the switching mechanism is protected through an external protective cover, and damage caused by collision is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of battery modules, and in particular to an alignment-free spot welding jig for producing and processing battery module components. Background Art

[0002] A battery module, also known as a battery module, is an intermediate-level component in a battery system. It consists of multiple battery cells connected in series or parallel to provide higher voltage and capacity. A battery module is one of the components of a battery pack, but a battery pack is a complete energy storage unit consisting of one or more battery modules. The main function of a battery module is to combine battery cells to increase the total battery capacity and voltage output, and to provide battery management and protection. The process of creating a battery module usually includes the following steps: First, select suitable battery cells, which are connected in series or parallel to form units with a certain voltage and capacity. The battery module usually also includes a battery management system (BMS), battery protection circuit, connector and other parts to ensure the efficient operation and safety of the battery system.

[0003] Since the battery module does not need to be assembled and welded by spot welding after production, and different modules contain different numbers of batteries, and the number may also vary due to different sizes, the traditional welding equipment is a single spot welding operation, which increases the steps required for battery module production and reduces work efficiency.

[0004] Therefore, it is necessary to make certain improvements to the spot welding jigs used in the production of existing battery module components. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an alignment-free spot welding fixture for the production and processing of battery module components, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A non-alignment spot welding jig for the production and processing of battery module components, comprising a frame, a transmission assembly is arranged inside the frame, and a switching mechanism is fixedly connected to the top of the frame, and fixed plates are fixedly connected to the front and rear of the top of the frame, and a dust box is fixedly connected between the tops of the two fixed plates;

[0007] The switching mechanism includes a hydraulic cylinder and a return plate, the number of the hydraulic cylinders is set to two, and the output end of the hydraulic cylinder is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a vertical plate, and one side of the vertical plate is fixedly connected to a motor, the output end of the motor is fixedly connected to one side of the return plate, and the other side of the return plate is fixedly connected to a movable rod, one end of the movable rod is rotatably connected to one side of the vertical plate, the top and bottom of the return plate are provided with electrode rods, and one end of the electrode rod is connected to a welding head.

[0008] Preferably, the bottom of the hydraulic cylinder is fixedly connected to the top of the frame.

[0009] Preferably, the number of electrode rods at the top of the circular plate is nine, and the number of electrode rods at the bottom of the circular plate is seven.

[0010] Preferably, the top and bottom of the circular plate are fixedly connected to electric telescopic rods, and the output end of the electric telescopic rod is fixedly connected to a transverse plate, and the surface of the welding head is fixedly connected to the inside of the transverse plate.

[0011] Preferably, a protective cover is provided on the top of the switching mechanism, and a clamping rod is fixedly connected to the bottom of the protective cover, a clamping hole matching the clamping rod is opened on the top of the connecting plate, and handles are fixedly connected to both sides of the protective cover.

[0012] Preferably, an exhaust fan is fixedly connected to the top of the inner wall of the dust box, and a partition is fixedly connected between the two sides of the inner wall of the dust box, the air inlet of the exhaust fan is connected to a vertical pipe, the bottom end of the vertical pipe passes through the dust box and extends to the bottom of the dust box, the bottom end of the vertical pipe is connected to a horizontal pipe, and a suction nozzle is fixedly connected to the bottom of the horizontal pipe surface, both sides of the exhaust fan are connected to air outlet ducts, and both sides of the dust box are hinged with box doors through hinges.

[0013] Preferably, support frames are fixedly connected to the front and rear of the bottom of the frame, and a cross bar is fixedly connected between opposite sides of the two support frames.

[0014] Beneficial Effects

[0015] The present invention provides a non-alignment spot welding fixture for the production and processing of battery module components. Compared with the prior art, it has the following beneficial effects:

[0016] The alignment-free spot welding jig for producing and processing battery module components is provided with a transmission component inside a frame, and a switching mechanism is fixedly connected to the top of the frame, and fixed plates are fixedly connected to the front and rear of the top of the frame, and a dust box is fixedly connected between the tops of the two fixed plates; the switching mechanism includes a hydraulic cylinder and a return plate, and the number of hydraulic cylinders is provided with two, and the output end of the hydraulic cylinder is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a vertical plate, and one side of the vertical plate is fixedly connected to a motor, the output end of the motor is fixedly connected to one side of the return plate, and the other side of the return plate is fixedly connected to a movable rod, one end of the movable rod is rotatably connected to one side of the vertical plate, and the top and bottom of the return plate are provided with An electrode rod, and one end of the electrode rod is connected to a welding head, a switchable welding head is adopted, and welding heads with different spacings are adopted to form a switching mechanism. The spacing of the welding heads on one side is smaller, and the spacing of the welding heads on the other side is larger. The appropriate welding head can be selected according to the number and spacing of batteries on the battery module, and there is no need to perform spot welding operations. Synchronous and efficient welding operations can be performed. When the battery module is transported on the conveyor belt for spot welding of the next row of batteries, the welding head can be retracted to avoid collision with the batteries. During the transmission process, the exhaust fan in the dust box will extract the dust on the battery module. When not in use, the switching mechanism is protected by an external protective cover to avoid damage due to collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0018] Figure 2 It is an expanded view of the structure of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the switching mechanism of the present invention;

[0020] Figure 4 is a cross-sectional view of the dust collecting box structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the bottom structure of the protective cover of the present invention.

[0022] In the figure: 1-frame, 2-transmission assembly, 3-switching mechanism, 31-hydraulic cylinder, 32-return plate, 33-connecting plate, 34-vertical plate, 35-motor, 36-movable rod, 37-electrode rod, 38-welding head, 39-electric telescopic rod, 310-horizontal plate, 4-fixed plate, 5-dust collection box, 6-protective cover, 7-clamp rod, 8-clamp hole, 9-handle, 10-exhaust fan, 11-partition, 12-vertical pipe, 13-horizontal pipe, 14-suction nozzle, 15-air outlet pipe, 16-box door, 17-support frame, 18-horizontal bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The present invention provides a technical solution: a non-alignment spot welding jig for producing and processing battery module components, comprising a frame 1, a transmission assembly 2 is arranged inside the frame 1, and a switching mechanism 3 is fixedly connected to the top of the frame 1, and a fixing plate 4 is fixedly connected to the front and rear of the top of the frame 1, and a dust box 5 is fixedly connected between the tops of the two fixing plates 4;

[0025] The switching mechanism 3 includes a hydraulic cylinder 31 and a return plate 32. There are two hydraulic cylinders 31, and the output end of the hydraulic cylinder 31 is fixedly connected to a connecting plate 33. The top of the connecting plate 33 is fixedly connected to a vertical plate 34, and one side of the vertical plate 34 is fixedly connected to a motor 35. The output end of the motor 35 is fixedly connected to one side of the return plate 32, and the other side of the return plate 32 is fixedly connected to a movable rod 36. One end of the movable rod 36 is rotatably connected to one side of the vertical plate 34. Electrode rods 37 are provided at the top and bottom of the return plate 32, and one end of the electrode rod 37 is connected to a welding head 38.

[0026] The appropriate welding head can be selected according to the number and spacing of batteries on the battery module. There is no need to perform spot welding operations, and synchronous and efficient welding operations can be performed. When the battery module is transported on the conveyor belt for spot welding of the next row of batteries, the welding head can be extended and retracted to avoid collision with the batteries. During the transportation process, the exhaust fan in the dust box will extract the dust on the battery module. When not in use, the switching mechanism is protected by an external protective cover to avoid damage due to collision.

[0027] Specifically, the transmission component 2 is a conveying mechanism with a conveyor belt. The conveyor belt refers to a belt fabric assembled on a conveyor for conveying objects, which is usually divided into cotton conveyor belts, rubber conveyor belts, plastic conveyor belts, and conveyor belts with traction parts. There are many types of conveyor belt equipment, mainly including: belt conveyors, plate conveyors, trolley conveyors, escalators, moving walkways, scraper conveyors, buried scraper conveyors, bucket conveyors, bucket elevators, suspended conveyors and overhead ropeways, etc. The belt conveyor is used here.

[0028] Specifically, the motor 35 is a servo motor, which can be controlled by an external control panel to rotate at a set angle.

[0029] In the present invention, the bottom of the hydraulic cylinder 31 is fixedly connected to the top of the frame 1 .

[0030] Specifically, the hydraulic cylinder 31 is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder 31 is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder 31 is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application scenario, and other devices are indispensable.

[0031] In the present invention, the number of the electrode rods 37 at the top of the circular plate 32 is set to nine, and the number of the electrode rods 37 at the bottom of the circular plate 32 is set to seven.

[0032] Specifically, the number of welding heads 38 on the upper and lower sides of the return plate 32 is inconsistent, and the spacing between them is also inconsistent.

[0033] In the present invention, the top and bottom of the return plate 32 are fixedly connected with an electric telescopic rod 39 , and the output end of the electric telescopic rod 39 is fixedly connected with a horizontal plate 310 , and the surface of the welding head 38 is fixedly connected with the inside of the horizontal plate 310 .

[0034] Specifically, when the battery module is conveyed on the conveyor belt for spot welding of the next row of batteries, the welding head 38 can be extended and retracted under the drive of the horizontal plate 310 to avoid collision with the batteries.

[0035] In the present invention, a protective cover 6 is provided on the top of the switching mechanism 3, and a clamping rod 7 is fixedly connected to the bottom of the protective cover 6, a clamping hole 8 adapted to the clamping rod 7 is opened on the top of the connecting plate 33, and handles 9 are fixedly connected to both sides of the protective cover 6.

[0036] Specifically, the locking rod 7 on the protective cover 6 is inserted into the locking hole 8 to limit the protective cover 6 on the connecting plate 33, so as to protect the welding head 38 on the return plate 32 when not in use.

[0037] In the present invention, an exhaust fan 10 is fixedly connected to the top of the inner wall of the dust box 5, and a partition 11 is fixedly connected between the two sides of the inner wall of the dust box 5, the air inlet of the exhaust fan 10 is connected to a vertical pipe 12, the bottom end of the vertical pipe 12 penetrates the dust box 5 and extends to the bottom of the dust box 5, the bottom end of the vertical pipe 12 is connected to a horizontal pipe 13, and the bottom of the surface of the horizontal pipe 13 is fixedly connected to a suction nozzle 14, both sides of the exhaust fan 10 are connected to air outlet ducts 15, and both sides of the dust box 5 are hinged with box doors 16 through hinges.

[0038] Specifically, the partition 11 has a certain shielding effect on the dust extracted by the exhaust fan 10 , and the interior of the partition 11 is in contact with the surface of the exhaust fan 10 , so that the dust will not fall into the bottom of the dust box 5 .

[0039] In the present invention, support frames 17 are fixedly connected to the front and rear of the bottom of the frame 1, and a cross bar 18 is fixedly connected between the opposite sides of the two support frames 17.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0041] When in use, the battery module is placed on the transmission assembly 2, and is moved to the bottom of the switching mechanism 3 through the transmission of the transmission assembly 2 for spot welding operation. According to the number of batteries on the battery module, the corresponding welding head 38 is selected, and the motor 35 is started by the external switch. The motor 35 drives the return plate 32 to rotate to switch the welding head 38, and then the hydraulic cylinder 31 is started to descend so that the welding head 38 contacts the battery, thereby performing the welding operation. When the battery module is transported on the conveyor belt for spot welding of the next row of batteries, the welding head 38 can be extended and retracted to avoid collision with the batteries. When the battery module moves to the bottom of the dust box 5, the exhaust fan 10 inside the dust box 5 is started. The exhaust fan 10 extracts and absorbs the dust on the battery module through the suction nozzle 14, the horizontal pipe 13 and the vertical pipe 12, and then discharges it to the inside of the dust box 5 through the outlet pipe 15 on the exhaust fan 10. The dust inside the dust box 5 can be cleaned through the box door 16.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-alignment spot welding jig for producing and processing battery module components, comprising a frame (1), characterized in that: A transmission assembly (2) is arranged inside the frame (1), and a switching mechanism (3) is fixedly connected to the top of the frame (1), fixed plates (4) are fixedly connected to the front and rear of the top of the frame (1), and a dust collection box (5) is fixedly connected between the tops of the two fixed plates (4); The switching mechanism (3) comprises a hydraulic cylinder (31) and a return plate (32), wherein the number of the hydraulic cylinders (31) is set to two, and the output end of the hydraulic cylinder (31) is fixedly connected to a connecting plate (33), the top of the connecting plate (33) is fixedly connected to a vertical plate (34), and one side of the vertical plate (34) is fixedly connected to a motor (35), the output end of the motor (35) is fixedly connected to one side of the return plate (32), and the other side of the return plate (32) is fixedly connected to a movable rod (36), one end of the movable rod (36) is rotatably connected to one side of the vertical plate (34), the top and bottom of the return plate (32) are both provided with electrode rods (37), and one end of the electrode rod (37) is connected to a welding head (38).

2. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: The bottom of the hydraulic cylinder (31) is fixedly connected to the top of the frame (1).

3. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: The number of electrode rods (37) at the top of the circular plate (32) is nine, and the number of electrode rods (37) at the bottom of the circular plate (32) is seven.

4. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: The top and bottom of the return plate (32) are both fixedly connected to an electric telescopic rod (39), and the output end of the electric telescopic rod (39) is fixedly connected to a transverse plate (310), and the surface of the welding head (38) is fixedly connected to the inside of the transverse plate (310).

5. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: A protective cover (6) is provided on the top of the switching mechanism (3), and a clamping rod (7) is fixedly connected to the bottom of the protective cover (6); a clamping hole (8) adapted to the clamping rod (7) is provided on the top of the connecting plate (33), and handles (9) are fixedly connected to both sides of the protective cover (6).

6. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: The top of the inner wall of the dust box (5) is fixedly connected to an exhaust fan (10), and a partition (11) is fixedly connected between the two sides of the inner wall of the dust box (5); the air inlet of the exhaust fan (10) is connected to a vertical pipe (12); the bottom end of the vertical pipe (12) penetrates the dust box (5) and extends to the bottom of the dust box (5); the bottom end of the vertical pipe (12) is connected to a horizontal pipe (13), and the bottom of the surface of the horizontal pipe (13) is fixedly connected to a suction nozzle (14); both sides of the exhaust fan (10) are connected to air outlet pipes (15), and both sides of the dust box (5) are hinged with box doors (16) through hinges.

7. The alignment-free spot welding jig for producing and processing battery module components according to claim 1, characterized in that: The front and rear of the bottom of the frame (1) are fixedly connected with support frames (17), and a cross bar (18) is fixedly connected between opposite sides of the two support frames (17).

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