A new energy automobile battery production sealing nail welding device

Abstract

The application relates to the field of batteries, in particular to a new energy automobile battery production sealing nail welding device, which comprises a sliding rail, a sealing unit for assembling sealing nails is arranged above the sliding rail; the sealing unit comprises two supporting plates fixed on the sliding rail, a feeding assembly, a pressing assembly and a sealing assembly are arranged between the two supporting plates; the feeding assembly is used for pushing the sealing nails to the position of the pressing assembly; the sealing assembly is arranged below the bearing table and comprises a laser welding head which is used for welding the sealing nails on the battery; the installation process of the sealing nails is realized, the problem that the posture of the sealing nails is out of control when the battery is conveyed due to the fact that the sealing nails are pre-assembled at the liquid injection hole position is avoided, the deviation of the sealing nails and the liquid injection hole is effectively avoided, the sealing property of the liquid injection hole of the battery is ensured, and in step two, the sealing nails are adsorbed by the adsorption pipe, the stability of the sealing nails is ensured, and preparation for subsequent alignment with the liquid injection hole is completed.

Description

Technical Field

[0001] This invention relates to the field of batteries, specifically to a welding device for sealing nails in the production of new energy vehicle batteries. Background Technology

[0002] There are various types of batteries for new energy vehicles, one of which is a square battery. During its production, there is a sealing pin assembly process to seal the injection hole. After a certain amount of battery fluid is injected into the battery, the injection hole is sealed by the sealing pin. The current installation of the injection hole sealing pin usually adopts the following process: first, the material is fed by a vibratory plate; second, it is transferred by a mechanical gripper / suction nozzle; third, it is positioned to the injection hole; and fourth, it is sealed by laser welding.

[0003] The sealing pin is pneumatically transferred to the injection hole position and then conveyed to the laser welding position. During the conveying process, due to vibration or bumps, the posture may be out of control, and the thin-walled sealing pin may tilt during the conveying process, causing the sealing pin to deviate from the injection hole. The center of the sealing pin and the injection hole will deviate, which will exceed the allowable tolerance of laser welding, resulting in poor welding quality and failure to meet the sealing requirements.

[0004] Therefore, a sealing nail welding device for new energy vehicle battery production is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a sealing nail welding device for the production of new energy vehicle batteries, comprising a slide rail for conveying batteries, and a sealing unit for assembling sealing nails mounted above the slide rail;

[0007] The sealing unit includes two support plates fixed to the slide rail, and a feeding assembly, a pressing assembly and a sealing assembly are arranged between the two support plates.

[0008] The feeding assembly is used to push the sealing nail to the pressing assembly position. The pressing assembly includes a support platform with a through hole on one side. Multiple baffles are arranged in a circumferential array inside the through hole. One end of each baffle is rotatably connected to the lower surface of the support platform. An adsorption tube that can move up and down is arranged above the through hole. When the adsorption tube moves down, it can adsorb the sealing nail on the baffle and push it down into the liquid injection hole on the battery.

[0009] A sealing assembly is provided below the support platform. The sealing assembly includes a laser welding head, which is used to weld the sealing nails to the battery.

[0010] Preferably, the feeding assembly comprises a vertical material pipe, the material pipe is stacked with sealing nails in an up-down direction, the lower end of the material pipe is fixed to the other side of the upper surface of the bearing table at a distance of one sealing nail thickness, and the lower end of the material pipe is provided with a push plate for pushing the sealing nails at the bottom of the material pipe to the position of the through hole.

[0011] Preferably, the pressing assembly further comprises a sleeve, a strip-shaped hole is formed in the inner side wall of the sleeve, the strip-shaped hole is arranged along the length direction of the sleeve, the sleeve is fixed to the support plate through the support rod, and the outer side wall of the sleeve is further provided with a negative pressure pipe, one end of the negative pressure pipe is communicated with the strip-shaped hole, and the other end of the negative pressure pipe is communicated with an external negative pressure device.

[0012] The sleeve is slidably connected with an adsorption pipe, and a gas extraction hole is formed in the outer side wall of the upper half of the adsorption pipe.

[0013] Preferably, a plurality of smoke exhaust holes are arranged in the outer circle of the lower end of the adsorption pipe in a circumferential direction.

[0014] Preferably, the outer side wall of the upper end of the adsorption pipe is fixed with a pressing plate in a symmetrical manner, a push rod is arranged below each pressing plate, each push rod penetrates the support rod downward, the upper end of the push rod is connected to the support rod through a spring, the lower end of the push rod is fixed with a ring body, a gear ring is rotatably connected to the inner circle of the ring body, and two laser welding heads are fixed to the upper end face of the gear ring in a symmetrical manner.

[0015] Preferably, a positioning assembly is arranged in the slide rail, the positioning assembly is used for positioning the battery below the sealing unit, and the positioning assembly comprises a rack slidably connected to the inner side wall of the slide rail, a rotation groove is formed in one end of the rack, and a limiting block is rotatably connected to the rotation groove.

[0016] The slide rail is provided with a stop block in a symmetrical manner on the upper end face, one end of the stop block is rotatably connected to the slide rail, the other end of the stop block extends to the front side of the moving direction of the battery, and the other end of the stop block is provided with a distance sensor.

[0017] Preferably, a plurality of limiting rods are arranged on the lower surface of the bearing table in a circumferential direction around the axis of the through hole.

[0018] Preferably, the end of the push plate opposite to the sealing nail is arranged in an arc shape.

[0019] Preferably, the lower end of the adsorption pipe is provided with a ring-shaped protrusion, and the protrusion is arranged in the same axis as the adsorption pipe.

[0020] Preferably, a strip-shaped observation window is formed in the outer side wall of the material pipe, and the observation window is arranged along the length direction of the material pipe.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. In the present application, the installation process of the sealing nail is realized, avoiding the problem of the sealing nail posture out of control when conveying the battery due to the pre-assembly of the sealing nail at the liquid injection hole position, effectively avoiding the deviation of the sealing nail and the liquid injection hole, and ensuring the sealing of the battery liquid injection hole; and in step two, the adsorption pipe adsorbs the sealing nail, ensures the stability of the sealing nail, and prepares for subsequent alignment with the liquid injection hole;

[0023] 2. In the present application, the adsorption pipe continuously applies downward extrusion force to the sealing nail, and presses the sealing nail firmly at the liquid injection hole position, and the deviation of the sealing nail caused by the heat generated during welding will continue to overcome under the continuous pressing of the adsorption pipe. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the sealing nail welding device for new energy automobile battery production in the present application;

[0025] Figure 2 It is a front view of the sealing nail welding device for new energy automobile battery production in the present application;

[0026] Figure 3 It is a perspective view of the slide rail in the present application;

[0027] Figure 4 It is a top view of the slide rail in the present application;

[0028] Figure 5 It is a perspective view of the rack in the present application;

[0029] Figure 6 It is a perspective view of the sealing unit in the present application;

[0030] Figure 7 It is a perspective view of the sealing assembly in the present application;

[0031] Figure 8 It is a perspective view of the pressing assembly in the present application;

[0032] Figure 9 It is a perspective view of the bearing table in the present application;

[0033] Figure 10 It is a top view of the bearing table in the present application;

[0034] Figure 11 It is a matching sectional view of the sleeve and the adsorption pipe in the present application;

[0035] Figure 12 It is a first perspective view of the bearing table in the present application;

[0036] Figure 13 It is a second perspective view of the bearing table in the present application.

[0037] In the figure: 101, battery; 102, sealing nail; 103, liquid injection hole; 1, sliding rail; 2, support plate; 3, bearing table; 4, through hole; 5, baffle; 6, adsorption pipe; 7, laser welding head; 8, servo motor; 9, screw rod; 10, lifting plate; 11, roller body; 12, material pipe; 13, push plate; 14, air cylinder; 15, sleeve; 16, strip-shaped hole; 17, negative pressure pipe; 18, air extraction hole; 19, support rod; 20, smoke exhaust hole; 21, pressing plate; 22, push rod; 23, ring body; 24, gear ring; 25, gear; 26, rack; 27, rotating groove; 28, limiting block; 29, stop block; 30, distance sensor; 31, driving motor; 32, limiting rod; 33, protrusion; 34, observation window. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0039] REFERENCE Figure 1 - Figure 10 A new energy automobile battery production sealing nail welding device, comprising a sliding rail 1 for conveying a battery 101, and a sealing unit for assembling a sealing nail 102 is arranged above the sliding rail 1.

[0040] The sealing unit comprises two support plates 2 fixed on the sliding rail 1, and a feeding assembly, a pressing assembly and a sealing assembly are arranged between the two support plates 2.

[0041] The feeding assembly is used for pushing the sealing nail 102 to the position of the pressing assembly, and the pressing assembly comprises a bearing table 3, a through hole 4 is formed on one side of the bearing table 3, a plurality of baffles 5 are arranged in an array on the inner circumference of the through hole 4, one end of each baffle 5 is rotatably connected to the lower surface of the bearing table 3, and an adsorption pipe 6 that can move up and down is arranged above the through hole 4, the adsorption pipe 6 can adsorb the sealing nail 102 on the baffle 5 and push it downward into the liquid injection hole 103 on the battery 101 when the adsorption pipe 6 moves downward.

[0042] A sealing assembly is arranged below the bearing table 3, and the sealing assembly comprises a laser welding head 7, which is used for welding the sealing nail 102 on the battery 101.

[0043] In the embodiment of the present application, a driving assembly for driving the adsorption pipe 6 to move up and down is arranged between the two support plates 2, and the driving assembly comprises a servo motor 8 arranged on the support plate 2, the servo motor 8 is controlled by a PLC, a screw rod 9 is fixedly connected to the output end of the servo motor 8, the end portion of the screw rod 9 extends vertically upward, a lifting plate 10 is fixedly connected to the end portion of the screw rod 9, the lifting plate 10 is fixedly connected to the adsorption pipe 6, and the adsorption pipe 6 is driven to move up and down alternately.

[0044] The sealing nail 102 is sequentially fed to the position of the through hole 4 by the feeding assembly. A plurality of baffles 5 are arranged at the through hole 4. Each baffle 5 is rotationally connected to the lower surface of the bearing table 3 by a torsional spring. In the initial state, the plurality of baffles 5 together hold the fed sealing nail 102. The battery 101 is pushed to the lower side of the sealing unit along the slide rail 1, and the position of the battery 101 is adjusted so that the liquid injection hole 103 on the battery 101 is opposite to the through hole 4. A plurality of roller bodies 11 are arranged on the inner bottom and the inner side wall of the slide rail 1, so that the battery 101 can smoothly move in the slide rail 1.

[0045] The new energy vehicle battery production sealing nail welding device specifically operates as follows:

[0046] Step one: feeding. The battery 101 is pushed into the slide rail 1, and then the feeding assembly feeds the sealing nail 102 to the position of the through hole 4. Each baffle 5 is held by the torsional force of the torsional spring connected thereto, and the plurality of baffles 5 together hold the sealing nail 102.

[0047] Step two: assembly. The driving assembly drives the adsorption pipe 6 to move downward, the lower end of the adsorption pipe 6 adsorbs the sealing nail 102, and at the same time, the plurality of baffles 5 are pressed downward, the baffles 5 are deflected, the through hole 4 is opened, the adsorption pipe 6 continues to drive the sealing nail 102 to move downward, and then the adsorption pipe 6 presses the sealing nail 102 in the liquid injection hole 103 of the battery 101.

[0048] Step three: sealing. The laser welding head 7 is welded along the outer edge of the sealing nail 102, and the sealing nail 102 is welded at the position of the liquid injection hole 103.

[0049] Step four: reset. The adsorption pipe 6 moves upward to reset, and the battery 101 with the completed sealing and welding is pushed away from the slide rail 1.

[0050] The subsequent steps one, two, three and four are repeated.

[0051] From steps one to four, the installation process of the sealing nail 102 is realized, the problem of uncontrolled posture of the sealing nail 102 during conveying of the battery 101 is avoided, the offset of the sealing nail 102 and the liquid injection hole 103 is effectively avoided, and the sealing property of the liquid injection hole 103 of the battery 101 is ensured. In step two, the adsorption pipe 6 adsorbs the sealing nail 102 to ensure the stability of the sealing nail 102 and prepare for subsequent alignment with the liquid injection hole 103. In step three, the adsorption pipe 6 continuously applies downward pressing force to the sealing nail 102 to firmly press the sealing nail 102 at the position of the liquid injection hole 103. During the welding and sealing, the sealing nail 102 is offset due to the heat generated during welding, and the offset problem is overcome by the continuous pressing of the adsorption pipe 6.

[0052] Reference Figure 9 - Figure 13The upper feeding assembly comprises a vertical material pipe 12, and the sealing nails 102 are stacked in the material pipe 12; the lower end of the material pipe 12 is fixedly connected to the upper surface of the bearing table 3 at a position on the other side of the bearing table 3 at a distance of the thickness of one sealing nail 102, and the lower end of the material pipe 12 is provided with a push plate 13; the push plate 13 is used for pushing the sealing nails 102 at the bottom of the material pipe 12 to the position of the through hole 4;

[0053] The sealing nails 102 are stacked in the same direction in the material pipe 12; the end of the push plate 13 away from the through hole 4 is fixedly connected with a gas cylinder 14; the gas cylinder 14 is arranged on both sides of the material pipe 12; the horizontal movement of the push plate 13 is realized through the gas cylinder 14, and the sealing nails 102 at the bottom of the material pipe 12 are pushed to the position of the through hole 4; in the embodiment, the total length of the push plate 13 is greater than the length of the moving path of the push plate 13, that is, when the push plate 13 pushes the sealing nails 102 to the position of the through hole 4, the push plate 13 moves to the lower end of the material pipe 12, and the upper surface of the push plate 13 blocks the sealing nails 102 at the bottom of the material pipe 12; when the push plate 13 is retracted and reset, the push plate 13 slides along the lower end of the material pipe 12; when the push plate 13 is completely reset, the sealing nails 102 at the bottom of the material pipe 12 can fall to the bearing table 3, so that the feeding of the sealing nails 102 is realized smoothly.

[0054] Referring to Figure 6 - Figure 8 , and Figure 11 The pressing assembly further comprises a sleeve 15, a strip-shaped hole 16 is arranged on the inner side wall of the sleeve 15 along the length direction of the sleeve 15, the sleeve 15 is fixedly connected to the support plate 2 through a support rod 19, and a negative pressure pipe 17 is further arranged on the outer side wall of the sleeve 15; one end of the negative pressure pipe 17 is communicated with the strip-shaped hole 16, and the other end of the negative pressure pipe 17 is communicated with an external negative pressure device.

[0055] The suction pipe 6 is slidably connected in the sleeve 15; and the suction hole 18 is arranged on the outer side wall of the upper half of the suction pipe 6.

[0056] In this embodiment, two groups of support rods 19 are arranged on the outer side wall of the sleeve 15 at the upper and lower ends, and the two groups of support rods 19 are fixedly connected to the support plate 2. The support rod 19 at the bottom is fixedly connected with the servo motor 8, and the end of the screw rod 9 penetrates the two groups of support rods 19 in sequence upwards; in the initial state, the upper half of the adsorption tube 6 is located above the sleeve 15, the suction hole 18 is exposed, and the lower half of the adsorption tube 6 is in the sleeve 15 and seals the strip-shaped hole 16; when the adsorption tube 6 moves downward and the sealing nail 102 at the position close to the through hole 4, the suction hole 18 is communicated with the strip-shaped hole 16, at this time, the adsorption tube 6 is in a negative pressure state, and the sealing nail 102 is adsorbed, that is, when the lower end of the adsorption tube 6 is close to the sealing nail 102, the adsorption tube 6 has a negative pressure environment, which can shorten the moving distance of the sealing nail 102 when the sealing nail 102 is adsorbed and moved upward, reduce the deflection amount of the sealing nail 102 when the sealing nail 102 is moved upward, and further improve the accuracy of subsequent sealing nail 102 assembly.

[0057] With reference to Figure 6 Figure 8 , and Figure 11 , a plurality of smoke exhaust holes 20 are arranged in the circumferential array of the outer circle of the lower end of the adsorption tube 6; the arranged smoke exhaust holes 20 are communicated with the inside of the adsorption tube 6, and the smoke exhaust holes 20 are used for adsorbing the smoke generated in the sealing and welding of the adsorption sealing nail 102, so as to avoid pollution caused by the smoke;

[0058] The smoke exhaust hole 20 and the adsorption port of the lower end of the adsorption tube 6 have the function of adsorption synchronously, when the adsorption tube 6 moves upward, the adsorption tube 6 seals the strip-shaped hole 16 again, realizes the intermittent provision of the negative pressure environment in the adsorption tube 6 and the smoke exhaust hole 20, and achieves the purpose of saving gas resources.

[0059] With reference to Figure 6 Figure 8 , the outer side wall of the upper end of the adsorption tube 6 is fixedly connected with a pressing plate 21 in symmetry, a push rod 22 is arranged below each pressing plate 21, each push rod 22 penetrates the support rod 19 downward, the upper end of the push rod 22 is connected to the support rod 19 through a spring, the lower end of the push rod 22 is fixedly connected with a ring body 23, the inner circle of the ring body 23 is rotatably connected with a gear ring 24, and the upper end face of the gear ring 24 is fixedly connected with two laser welding heads 7 in symmetry;

[0060] The support rod 19 penetrates the two groups of support rods 19 on the sleeve 15, in the initial state, under the elastic force of the spring, the support rod 19 drives the ring body 23 to move upward, and the ring body 23 is arranged above the slide rail 1, and the space for the battery 101 to enter is left, so that the part protruding at the upper end of the battery 101 does not touch the laser welding head 7;

[0061] ​​The driving assembly drives the adsorption tube 6 to move downward, the adsorption tube 6 drives the pressing plate 21 to move downward, the pressing plate 21 presses the support rod 19 downward, when the adsorption tube 6 presses the sealing nail 102 to the position of the liquid injection hole 103, the support rod 19 also drives the ring body 23 to move downward to the specified position, and then welding is performed;

[0062] In the embodiment, the gear ring 24 is driven by a reduction motor, the reduction motor is controlled by a PLC, the reduction motor can realize forward rotation and reverse rotation, the output end of the reduction motor is fixedly connected with a gear 25 for driving the gear ring 24 to rotate, the gear 25 drives the gear ring 24 to rotate slowly, and drives the two laser welding heads 7 to rotate around the axis of the liquid injection hole 103, in the embodiment, two laser welding heads 7 are arranged, only one hundred and eighty degrees rotation of the gear ring 24 needs to be controlled, which is also a specific way to improve the sealing and welding efficiency, more than two laser welding heads 7 can also be arranged on the gear ring 24, to further improve the welding efficiency;

[0063] After the sealing and welding are completed, the reduction motor drives the gear 25 to rotate reversely, and the laser welding heads 7 are reversed and reset, finally, step four is executed, the adsorption tube 6 moves upward and resets, and the battery 101 after the sealing and welding is completed is pushed away from the slide rail 1.

[0064] Referring to Figure 1 - Figure 5 The slide rail 1 is provided with a positioning assembly inside, the positioning assembly is used for positioning the battery 101 below the sealing unit, and the positioning assembly comprises a rack 26 which is slidingly connected to the inner side wall of the slide rail 1, and a limiting block 28 which is rotatably connected in a rotating groove 27 at one end of the rack 26.

[0065] The slide rail 1 is provided with a stop block 29 on the upper end face, one end of the stop block 29 is rotatably connected to the slide rail 1, the other end of the stop block 29 extends to the front side of the moving direction of the battery 101, and the distance sensor 30 is arranged at the other end of the stop block 29.

[0066] The rack 26 is arranged in the slide rail 1, the rack 26 is engaged with the driving teeth arranged on the outer side wall of the slide rail 1, the driving teeth are driven to rotate by the driving motor 31, and the driving motor 31 is also controlled by the PLC, so that the forward and reverse rotation of the driving motor 31 can be realized; after the battery 101 is pushed into the slide rail 1, the battery 101 extrudes the limiting block 28, the limiting block 28 is rotated and retracted into the rotating groove 27, when the battery 101 passes the limiting block 28, the limiting block 28 is deflected and reset under the torsion of the reset torsional spring connected thereto, then the driving motor 31 drives the rack 26 to move, the rack 26 drives the limiting block 28 to move, and the limiting block 28 extrudes one side wall of the battery 101, at this time, the limiting block 28 extrudes one side wall of the battery 101, extrudes the battery 101 to the direction of the stop block 29, when the distance sensor 30 arranged at the other end of the stop block 29 measures that the distance between the battery 101 and the side wall of the other end of the stop block 29 is zero, the PLC controls the driving motor 31 to stop, and the battery 101 moves to the specified position, the process is the specific process of the battery 101 pushed and fed into the slide rail 1 in step one, and the battery 101 is accurately fed; after step one is executed, the subsequent steps can be performed; after the battery 101 sealed and welded in step four is pushed away from the slide rail 1, the driving motor 31 drives the rack 26 to move, the limiting block 28 pushes the battery 101 again, the battery 101 extrudes the stop block 29, and the stop block 29 is also connected to the slide rail 1 through the torsional spring, at this time, the pushing force of the battery 101 is greater than the torsion of the torsional spring connected to the stop block 29, and the battery 101 is pushed away from the slide rail 1, and the stop block 29 is deflected and reset again.

[0067] Referring to Figure 7 , Figure 9 , Figure 12 and Figure 13 , a plurality of limiting rods 32 are arranged on the lower surface of the bearing table 3, and the plurality of limiting rods 32 are arranged in a circular array around the axis of the through hole 4;

[0068] A plurality of limiting rods 32 are arranged below the through hole 4, which are used to limit the horizontal deviation of the sealing nail 102, so that when the sealing nail 102 is separated from the baffle 5, the outer edge of the sealing nail 102 can be constrained by the limiting rod 32, further improving the stability between the lower end of the adsorption pipe 6 and the sealing nail 102, and also being a specific means to improve the sealing and welding between the sealing nail 102 and the liquid injection hole 103.

[0069] Referring to Figure 10 , the end of the push plate 13 opposite to the sealing nail 102 is arranged in an arc shape;

[0070] The shape of the end of the push plate 13 opposite to the sealing nail 102 is arranged, which can ensure that when the push plate 13 pushes the sealing nail 102, the sealing nail 102 can move along a straight line to the position of the through hole 4, so that the circular axis of the sealing nail 102 and the axis of the through hole 4 tend to be in the same line, and the limiting rod 32 is also arranged for the same purpose.

[0071] Referring to Figure 11 , the lower end of the adsorption pipe 6 is provided with a ring-shaped protrusion 33, and the protrusion 33 is coaxially arranged with the adsorption pipe 6;

[0072] The protrusion 33 is arranged to replace the adsorption of the sealing nail 102 by the lower end of the adsorption pipe 6, reduce the shielding of the sealing nail 102 by the lower end of the adsorption pipe 6, and also avoid interference of the lower end of the adsorption pipe 6 with the rotating laser welding head 7, so as to ensure smooth sealing welding of the sealing nail 102.

[0073] Referring to Figure 12 , a strip-shaped observation window 34 is arranged on the outer side wall of the material pipe 12, and the observation window 34 is arranged along the length direction of the material pipe 12;

[0074] The arranged observation window 34 can clearly observe the consumption of the sealing nail 102 in the material pipe 12, and the sealing nail 102 can be supplemented in time.

[0075] Working principle: the new energy automobile battery production sealing nail welding device specifically operates as follows:

[0076] Step one: feeding, pushing the battery 101 into the slide rail 1, and then feeding the sealing nail 102 to the position of the through hole 4 by the feeding assembly, and each baffle 5 is held together by the torsional force of the torsional spring connected thereto to hold the sealing nail 102;

[0077] Step two: assembly, the driving assembly drives the adsorption pipe 6 to move downward, the lower end of the adsorption pipe 6 adsorbs the sealing nail 102, and at the same time, the adsorption pipe 6 presses the multiple baffles 5, the baffles 5 are deflected, the through hole 4 is opened, the adsorption pipe 6 continues to drive the sealing nail 102 to move downward, and then the adsorption pipe 6 presses the sealing nail 102 in the liquid injection hole 103 of the battery 101;

[0078] Step three: sealing, the laser welding head 7 welds along the outer edge of the sealing nail 102, and the sealing nail 102 is welded at the position of the liquid injection hole 103;

[0079] Step four: reset, the adsorption pipe 6 moves upward to reset, and the battery 101 with completed sealing welding is pushed away from the slide rail 1;

[0080] The subsequent steps one, two, three and four are repeated.

[0081] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery production sealing nail welding device, characterized in that: The sealing unit is arranged above the slide rail, and the sealing nail is arranged on the sealing unit. The sealing unit comprises two support plates fixed on the slide rail, and an upper feeding assembly, a pressing assembly and a sealing assembly are arranged between the two support plates. The upper feeding assembly is used for pushing the sealing nail to the position of the pressing assembly, and the pressing assembly comprises a bearing table, a through hole is formed on one side of the bearing table, a plurality of baffles are arranged in the circumferential direction in the through hole, one end of each baffle is rotatably connected to the lower surface of the bearing table, and a suction pipe that can move up and down is arranged above the through hole. The sealing assembly is arranged below the bearing table, and comprises a laser welding head for welding the sealing nail on the battery. The pressing assembly further comprises a sleeve, a strip-shaped hole is formed in the inner wall of the sleeve, the strip-shaped hole is arranged along the length direction of the sleeve, the sleeve is fixed on the support plate through a support rod, and a negative pressure pipe is further arranged on the outer wall of the sleeve. The suction pipe is slidably connected in the sleeve, and a gas extraction hole is formed in the outer wall of the upper half of the suction pipe. The outer wall of the upper end of the suction pipe is fixed with a pressing plate, a push rod is arranged below each pressing plate, the push rod penetrates downward through the support rod, the upper end of the push rod is connected to the support rod through a spring, the lower end of the push rod is fixed with a ring, a gear ring is rotatably connected to the inner circle of the ring, and two laser welding heads are fixed on the upper end face of the gear ring.

2. The new energy vehicle battery production sealing nail welding device according to claim 1, characterized in that: The upper feeding assembly comprises a vertical material pipe, a plurality of sealing nails are stacked in the material pipe, the lower end of the material pipe is fixed on the other side of the upper surface of the bearing table at a distance of one sealing nail thickness, and a push plate is arranged at the lower end of the material pipe.

3. The new energy vehicle battery production sealing nail welding device according to claim 2, characterized in that: A plurality of smoke exhaust holes are arranged in the circumferential direction at the lower end of the suction pipe.

4. The new energy vehicle battery production sealing nail welding device according to claim 1, characterized in that: A positioning assembly is arranged in the slide rail, the positioning assembly is used for positioning the battery below the sealing unit, and the positioning assembly comprises a rack slidably connected to the inner wall of the slide rail. A stop block is rotatably connected to the slide rail at one end of the stop block, the other end of the stop block extends to the front side of the moving direction of the battery, and a distance sensor is arranged at the other end of the stop block.

5. The new energy vehicle battery production sealing nail welding device according to claim 2, characterized in that: A plurality of limiting rods are arranged on the lower surface of the bearing table, and the plurality of limiting rods are arranged in the circumferential direction around the axis of the through hole.

6. The new energy vehicle battery production sealing nail welding device according to claim 2, characterized in that: The end of the push plate opposite to the sealing nail is arranged in an arc shape.

7. The new energy vehicle battery production sealing nail welding device according to claim 1, characterized in that: The lower end of the suction pipe is provided with a ring-shaped protrusion coaxial with the suction pipe.

8. The new energy vehicle battery production sealing nail welding device according to claim 2, characterized in that: A strip-shaped observation window is formed in the outer wall of the material pipe, and the observation window is arranged along the length direction of the material pipe. The sealing unit is arranged above the slide rail, and the sealing nail is arranged on the sealing unit.

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