Power battery clamp-free laser welding device

Abstract

The utility model relates to the technical field of laser welding, and discloses a power battery clamp-free laser welding device which comprises an operation table, the bottom face of the operation table is fixedly connected with a supporting frame, and the surface of the supporting frame is fixedly connected with an air draft assembly. According to the clamp-free laser welding device for the power battery, through the arrangement of the air draft assembly and the filtering assembly, when the clamp-free laser welding device for the power battery is used, an external power source is connected, an air draft fan is started, and smoke generated by laser welding of the power battery is collected through a smoke suction hood and reaches a filtering frame through an exhaust pipe; the activated carbon in the filter frame adsorbs harmful gas and tiny particles which may be contained in the smoke, so that the smoke is collected and filtered, the smoke and the gas have potential harm to human health, the symptoms such as respiratory tract stimulation, cough, sore throat, asthma, eye and skin stimulation and the like which may be caused by inhalation of the smoke and the gas are avoided, and the health care effect is achieved. And potential harm of laser welding to a human body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a fixture-free laser welding device for a power battery. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. At present, laser welding is involved in the power battery production industry, such as square shell module side plate and end plate welding, CTP module Busbar welding, soft package module exchange rate row welding, etc. When laser welding the power battery, the current situation is to use a fixture to fix the power battery for laser welding, but it will reduce work efficiency. Therefore, we propose a fixture-free laser welding device for power batteries to solve this problem.

[0003] At present, the power battery fixture laser welding device on the market has the following disadvantages:

[0004] (1) Existing power battery laser welding devices are generally fixed with a fixture. The installation and adjustment time of the fixture reduces work efficiency. In addition, the laser welding device with a fixture will increase the deformation and stress concentration of the workpiece due to the constraint of the fixture, thereby increasing the possible negative impact during the welding process, which is not convenient for ensuring the quality of power battery welding;

[0005] (2) In the existing power battery fixture laser welding device, during welding, the welding material evaporates and burns at high temperature, which will produce smoke, which may contain harmful gases and tiny particles, which is not conducive to human health. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The technical problem solved by the utility model is to provide a power battery fixture-free laser welding device which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problems of using fixtures to reduce work efficiency and generating smoke during welding proposed in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fixture-free laser welding device for a power battery, comprising an operating table, the bottom surface of the operating table is fixedly connected to a support frame, the surface of the support frame is fixedly connected to an exhaust assembly, the interior of the exhaust assembly is clamped with a filter assembly, the middle part of the bottom surface of the operating table is fixedly connected to a rotating assembly, the top surface of the rotating assembly is fixedly connected to a telescopic column, one side of the telescopic column is fixedly connected to an adjustment rod, one side of the adjustment rod is fixedly connected to a lighting assembly, a slide groove is provided on the bottom surface of the adjustment rod, one end of the adjustment rod is fixedly connected to a motor box A, the interior of the motor box A is fixedly connected to an adjustment assembly, and the bottom surface of the adjustment assembly is fixedly connected to an electric push rod.

[0010] Optionally, the exhaust assembly includes a fan frame fixedly connected to the surface of the support frame, the interior of the fan frame is fixedly connected to the exhaust fan, one side of the fan frame is connected to an exhaust duct, and the other side of the fan frame is connected to an exhaust duct, and the exhaust duct serves to exhaust smoke.

[0011] Optionally, the filter assembly includes a filter frame snap-fitted to the interior of the exhaust assembly, and activated carbon is fixedly connected to the interior of the filter frame, and the activated carbon serves to absorb harmful gases and tiny particles in the smoke.

[0012] Optionally, the rotating assembly includes a motor box B fixedly connected to the middle of the bottom surface of the operating table, a servo motor A is fixedly connected to the interior of the motor box B, the output end of the servo motor A is splined to a transmission rod A, one end of the transmission rod A passes through the surface of the operating table and is fixedly connected to a rotating plate, and the rotating plate plays a rotating role.

[0013] Optionally, the lighting assembly includes a universal tube fixedly connected to one side of the adjustment rod, a lighting lamp is fixedly connected to the bottom of the universal tube, one side of the lighting lamp is electrically connected to a battery via a power cord, and the battery serves to supply power to the lighting lamp and the electric push rod.

[0014] Optionally, the adjustment assembly includes a servo motor B fixedly connected to the inside of the motor box A, the output end of the servo motor B is splined with a transmission rod B, one end of the transmission rod B passes through the surface of the adjustment rod and is fixedly connected to a lead screw, the surface of the lead screw is threadedly connected with an adjustment ring, and the adjustment ring serves to adjust the distance of the electric push rod.

[0015] Optionally, a smoke hood is sleeved on the surface of the electric push rod, a laser head is fixedly connected to the bottom end of the electric push rod, one end of the electric push rod is electrically connected to a battery through a power cord, and the laser head plays a role in laser welding.

[0016] (III) Beneficial effects

[0017] The utility model provides a fixture-free laser welding device for power batteries, which has the following beneficial effects:

[0018] 1. The fixture-free laser welding device for power batteries is equipped with an exhaust component and a filter component. When in use, the device is connected to an external power source, the exhaust fan is started, and the laser welds the power battery. The smoke generated is collected through the smoke hood and reaches the filter frame through the exhaust pipe. The activated carbon in the filter frame absorbs harmful gases and tiny particles that may be contained in the smoke, thereby collecting and filtering the smoke. These smoke and gases have potential hazards to human health, so as to avoid respiratory irritation, coughing, sore throat, asthma, eye and skin irritation and other symptoms caused by inhalation of smoke and gas, thereby reducing the potential hazards of laser welding to the human body.

[0019] 2. The power battery fixtureless laser welding device, through the setting of the lighting component, starts the battery to power the lighting lamp when in use, so that the lighting lamp emits light, and the universal tube can be adjusted according to the position to be illuminated, so as to achieve a better observation of the welding position. During the laser welding process, the laser beam can induce very strong light radiation, resulting in dim surroundings and making the welding area difficult to observe. Adding lighting lamps can increase the brightness of the welding area, so that the operator can clearly observe the welding process and the details of the workpiece surface, reduce the occurrence of operating errors and accidents, and improve work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the operating table of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the rotating assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the lighting assembly of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the exhaust assembly of the utility model.

[0026] In the figure: 1. operating table; 2. support frame; 3. exhaust assembly; 301. fan frame; 302. exhaust fan; 303. exhaust duct; 304. exhaust duct; 4. filter assembly; 401. filter frame; 402. activated carbon; 5. rotating assembly; 501. motor box B; 502. servo motor A; 503. rotating piece; 6. telescopic column; 7. adjustment rod; 8. lighting assembly; 801. universal tube; 802. lighting lamp; 803. battery; 9. motor box A; 10. adjustment assembly; 1001. servo motor B; 1002. lead screw; 1003. adjustment ring; 11. electric push rod; 12. smoke hood; 13. laser head. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 6The utility model provides a technical solution: a fixture-free laser welding device for power batteries, comprising an operating table 1, a support frame 2 is fixedly connected to the bottom surface of the operating table 1, an exhaust assembly 3 is fixedly connected to the surface of the support frame 2, a filter assembly 4 is clamped inside the exhaust assembly 3, and through the arrangement of the exhaust assembly 3 and the filter assembly 4, when in use, an external power source is connected, the exhaust fan 302 is started, and the smoke generated by laser welding of the power battery is collected through the smoke hood 12 and reaches the filter frame 401 through the exhaust pipe 304. The activated carbon 402 in the filter frame 401 absorbs harmful gases and tiny particles that may be contained in the smoke, thereby achieving the effect of collecting and filtering the smoke, which has potential harm to human health, thereby avoiding respiratory irritation, coughing, sore throat, asthma, eye and skin irritation and other symptoms caused by inhalation of smoke and gas, and reducing the potential harm of laser welding to the human body. A rotating assembly 5 is fixedly connected to the middle part of the bottom surface of the operating table 1, The top surface of the rotating component 5 is fixedly connected with a telescopic column 6, one side of the telescopic column 6 is fixedly connected with an adjustment rod 7, one side of the adjustment rod 7 is fixedly connected with a lighting component 8. Through the setting of the lighting component 8, when in use, the storage battery 803 is started to power the lighting lamp 802, so that the lighting lamp 802 emits light, and the universal tube 801 can be adjusted according to the position to be illuminated, so as to achieve a better observation of the welding position. During the laser welding process, the laser beam can induce very strong light radiation, resulting in a dim environment and making the welding area difficult to observe. Adding the lighting lamp 802 can increase the brightness of the welding area, so that the operator can clearly observe the welding process and the details of the workpiece surface, reduce the occurrence of operating errors and accidents, and improve the safety of work. The bottom surface of the adjustment rod 7 is provided with a slide groove, one end of the adjustment rod 7 is fixedly connected with a motor box A9, the interior of the motor box A9 is fixedly connected with an adjustment component 10, and the bottom surface of the adjustment component 10 is fixedly connected with an electric push rod 11;

[0029] The exhaust assembly 3 includes a fan frame 301 fixedly connected to the surface of the support frame 2, the interior of the fan frame 301 is fixedly connected to the exhaust fan 302, one side of the fan frame 301 is connected to an exhaust pipe 303, and the other side of the fan frame 301 is connected to an exhaust pipe 304. The exhaust assembly 3 is arranged to extract the smoke generated by laser welding;

[0030] The filter assembly 4 includes a filter frame 401 that is clamped inside the exhaust assembly 3. The inside of the filter frame 401 is fixedly connected with activated carbon 402. Through the setting of the filter assembly 4, the harmful gases and particles in the smoke generated by laser welding are adsorbed;

[0031] The rotating assembly 5 includes a motor box B501 fixedly connected to the middle of the bottom surface of the operating table 1, a servo motor A502 is fixedly connected inside the motor box B501, a transmission rod A is splined to the output end of the servo motor A502, one end of the transmission rod A passes through the surface of the operating table 1 and is fixedly connected to a rotating piece 503, and the setting of the rotating assembly 5 plays a role in moving the welding position;

[0032] The lighting assembly 8 includes a universal tube 801 fixedly connected to one side of the adjustment rod 7, a lighting lamp 802 is fixedly connected to the bottom of the universal tube 801, and one side of the lighting lamp 802 is electrically connected to a battery 803 through a power line. The lighting assembly 8 is provided to provide lighting for the power battery during laser welding;

[0033] The adjustment assembly 10 includes a servo motor B1001 fixedly connected to the inside of the motor box A9, the output end of the servo motor B1001 is splined with a transmission rod B, one end of the transmission rod B penetrates the surface of the adjustment rod 7 and is fixedly connected with a lead screw 1002, and the surface of the lead screw 1002 is threadedly connected with an adjustment ring 1003. Through the setting of the adjustment assembly 10, the position of the electric push rod 11 is adjusted;

[0034] A smoke hood 12 is sleeved on the surface of the electric push rod 11, and a laser head 13 is fixedly connected to the bottom end of the electric push rod 11. One end of the electric push rod 11 is electrically connected to the battery 803 through a power line. The smoke hood 12 is provided to collect smoke.

[0035] In the utility model, the working steps of the device are as follows:

[0036] Step 1: When in use, connect an external power source, start the exhaust fan 302, and collect the smoke generated by laser welding the power battery through the smoke hood 12, and reach the filter frame 401 through the exhaust pipe 304. The activated carbon 402 in the filter frame 401 absorbs harmful gases and tiny particles that may be contained in the smoke;

[0037] The second step: when in use, start the storage battery 803 to supply power to the lighting lamp 802, so that the lighting lamp 802 emits light, and the universal tube 801 can be adjusted according to the position to be illuminated.

[0038] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0039] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0040] 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 fixture-free laser welding device for a power battery, comprising an operating table (1), characterized in that: The bottom surface of the operating table (1) is fixedly connected to a support frame (2), the surface of the support frame (2) is fixedly connected to an exhaust assembly (3), the interior of the exhaust assembly (3) is clamped with a filter assembly (4), the middle part of the bottom surface of the operating table (1) is fixedly connected to a rotating assembly (5), the top surface of the rotating assembly (5) is fixedly connected to a telescopic column (6), one side of the telescopic column (6) is fixedly connected to an adjustment rod (7), one side of the adjustment rod (7) is fixedly connected to a lighting assembly (8), the bottom surface of the adjustment rod (7) is provided with a sliding groove, one end of the adjustment rod (7) is fixedly connected to a motor box A (9), the interior of the motor box A (9) is fixedly connected to an adjustment assembly (10), and the bottom surface of the adjustment assembly (10) is fixedly connected to an electric push rod (11).

2. A fixture-free laser welding device for power batteries according to claim 1, characterized in that: The exhaust assembly (3) comprises a fan frame (301) fixedly connected to the surface of the support frame (2); the interior of the fan frame (301) is fixedly connected to an exhaust fan (302); one side of the fan frame (301) is connected to an exhaust pipe (303); and the other side of the fan frame (301) is connected to an exhaust pipe (304).

3. A fixture-free laser welding device for power batteries according to claim 1, characterized in that: The filter assembly (4) comprises a filter frame (401) which is snap-fitted to the interior of the exhaust assembly (3), and activated carbon (402) is fixedly connected to the interior of the filter frame (401).

4. A fixture-free laser welding device for power batteries according to claim 1, characterized in that: The rotating assembly (5) comprises a motor box B (501) fixedly connected to the middle part of the bottom surface of the operating table (1); a servo motor A (502) is fixedly connected inside the motor box B (501); an output end of the servo motor A (502) is spline-connected to a transmission rod A; one end of the transmission rod A passes through the surface of the operating table (1) and is fixedly connected to a rotating plate (503).

5. The fixture-free laser welding device for power batteries according to claim 1, characterized in that: The lighting assembly (8) comprises a universal tube (801) fixedly connected to one side of the adjustment rod (7); a lighting lamp (802) is fixedly connected to the bottom of the universal tube (801); and one side of the lighting lamp (802) is electrically connected to a storage battery (803) via a power line.

6. A fixture-free laser welding device for power batteries according to claim 1, characterized in that: The adjustment assembly (10) comprises a servo motor B (1001) fixedly connected to the inside of a motor box A (9); the output end of the servo motor B (1001) is spline-connected to a transmission rod B; one end of the transmission rod B passes through the surface of an adjustment rod (7) and is fixedly connected to a lead screw (1002); the surface of the lead screw (1002) is threadedly connected to an adjustment ring (1003).

7. The fixture-free laser welding device for power batteries according to claim 1, characterized in that: The surface of the electric push rod (11) is sleeved with a smoking hood (12), the bottom end of the electric push rod (11) is fixedly connected to a laser head (13), and one end of the electric push rod (11) is electrically connected to a battery (803) via a power line.

Images