CN113523663A - Automatic spot welding machine for lithium battery - Google Patents

Automatic spot welding machine for lithium battery Download PDF

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Publication number
CN113523663A
CN113523663A CN202110878608.4A CN202110878608A CN113523663A CN 113523663 A CN113523663 A CN 113523663A CN 202110878608 A CN202110878608 A CN 202110878608A CN 113523663 A CN113523663 A CN 113523663A
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CN
China
Prior art keywords
lithium battery
lithium
welding
cylinder
spot welding
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Withdrawn
Application number
CN202110878608.4A
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Chinese (zh)
Inventor
钟晓荣
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Shenzhen Bister Automation Equipment Co ltd
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Shenzhen Bister Automation Equipment Co ltd
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Priority to CN202110878608.4A priority Critical patent/CN113523663A/en
Publication of CN113523663A publication Critical patent/CN113523663A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • B23K37/0247Driving means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/36Electric or electronic devices

Abstract

The invention relates to the technical field of lithium battery spot welding, and discloses an automatic spot welding machine for lithium batteries, which comprises a conveying frame, a spot welding frame and a spot welding frame, wherein the conveying frame is used for pouring lithium batteries for arrangement and conveying; the processing box is used for processing the lithium battery inside; the overturning and inserting mechanism is used for overturning the lithium battery with the reversed positive electrode and negative electrode in the conveying process and inserting the lithium battery; the mounting rack is used for inserting the lithium battery into the slotted hole in the mounting rack and performing subsequent welding processing; and the storage bin is used for automatically installing and welding the storage mounting frame and the nickel sheet. The device detects the lithium cell through carrying the lithium cell, realizes the detection of positive negative pole by sensor feedback testing result, overturns through tilting mechanism afterwards to snatch the mounting bracket through drive mechanism and carry out the installation of lithium cell, the installation and the last welding of nickel piece, realized the production of automatic lithium cell group, alleviateed a large amount of labours, guaranteed production quality and improved production efficiency.

Description

Automatic spot welding machine for lithium battery
Technical Field
The invention relates to the technical field of spot welding of lithium batteries, in particular to an automatic spot welding machine for lithium batteries.
Background
Lithium batteries are batteries using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, and therefore, such batteries are also called lithium metal batteries, and unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost and the like, and can generate a voltage of 1.5V to 3.7V depending on a structural design and an electrode material, and in current production applications, in order to meet different requirements, lithium batteries are often arranged and welded, and particularly, cylindrical batteries are frequently used.
Most need artificial in the present lithium battery welding equipment to peg graft the battery in the mounting bracket and install the nickel piece, then place spot welding processing on equipment again, but processing has increased the labour of many like this, and work efficiency is difficult to guarantee, can't realize automated production, and most of equipment all can only produce the lithium cell group of single model, the limitation is big, if the group battery of producing multiple model just need purchase the equipment of multiple model, greatly increased manufacturing cost.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the automatic spot welding machine for the lithium battery, which has the advantages of automatic production, multi-model production and the like, and solves the problems of low production efficiency, single production model and the like.
(II) technical scheme
In order to solve the technical problems of low production efficiency and single production model, the invention provides the following technical scheme: an automatic spot welding machine for lithium batteries comprises a conveying frame, a spot welding device and a spot welding device, wherein the conveying frame is used for pouring lithium batteries for arrangement and conveying;
the processing box is used for processing the lithium battery inside;
the overturning and inserting mechanism is used for overturning the lithium battery with the reversed positive electrode and negative electrode in the conveying process and inserting the lithium battery;
the mounting rack is used for inserting the lithium battery into the slotted hole in the mounting rack and performing subsequent welding processing;
the storage bin is used for automatically installing and welding the storage mounting frame and the nickel sheet;
the transmission mechanism is used for clamping the mounting rack and driving the mounting rack to move at a fixed point so as to insert and weld the lithium battery;
and the welding mechanism is used for welding the lithium battery in the mounting rack and the nickel sheets inserted on two sides of the mounting rack and automatically pushing out the lithium battery after welding.
Preferably, the carriage includes the conveyer belt, the conveyer belt is formed by connecting a plurality of cylinders, the lithium cell is located between two cylinders when carrying, conveyer belt one side top is provided with the feeding storehouse, feeding storehouse bottom is provided with the baffle, the baffle is used for blockking the lithium cell and guarantees that only placed a lithium cell between per two cylinders.
Preferably, the overturning and inserting mechanism comprises a detection cylinder, the detection cylinder is located on the front side of the conveying belt, a groove is formed in the other side of the conveying belt, a sensor is inserted and connected with the other side of the conveying belt, a compression spring is arranged in the groove, and the detection cylinder is used for pushing the lithium battery to enter the groove and detecting the positive electrode and the negative electrode through the sensor.
Preferably, upset grafting mechanism is including switching the motor, the switching motor erects and the conveyer belt top, switching motor axial region is fixed with electric telescopic handle, the electric telescopic handle bottom is provided with adsorbs the piece, it is used for forming negative pressure environment and adsorbs the lithium cell to adsorb the piece connecting pipe, it is provided with and pushes away the material cylinder to detect cylinder one side, it is used for pushing the lithium cell into the mounting bracket to push away the material cylinder.
Preferably, the storage silo includes mounting bracket storage silo and nickel piece storage silo, mounting bracket storage silo and nickel piece storage silo all are located the processing roof portion, mounting bracket storage silo bottom symmetry articulates there is the limiting plate, the limiting plate rotates the junction with the lateral wall and is provided with the torsional spring, nickel piece storage silo bottom is provided with electric valve, the mounting bracket both sides are provided with the draw-in groove that is used for placing the nickel piece.
Preferably, drive mechanism includes longitudinal rail, longitudinal rail is vertical to be installed in processing case both sides, sliding connection has the crossbeam on the longitudinal rail, crossbeam top sliding connection has the slider, the slider top is provided with the tong, the mounting bracket bottom surface is provided with the groove with the tong joint.
Preferably, the welding mechanism includes the welding cylinder, the welding cylinder symmetry sets up at processing case both sides lateral wall, the welding cylinder push rod runs through the processing case lateral wall and is provided with the spot welding head, the processing case lateral wall just is located the welding cylinder bottom and is provided with row material cylinder, it runs through into the processing incasement portion and is provided with the push pedal to arrange material cylinder tip, the processing case lateral wall just is provided with the discharge gate for row material cylinder department.
(III) advantageous effects
Compared with the prior art, the invention provides an automatic spot welding machine for lithium batteries, which has the following beneficial effects:
1. this automatic spot welder of lithium cell carries the lithium cell through the conveyer belt and promotes the lithium cell through detecting the cylinder and detect, realizes the detection of positive negative pole by sensor feedback testing result, overturns through tilting mechanism afterwards to snatch the mounting bracket through drive mechanism and carry out the installation of lithium cell, the installation and the last welding of nickel piece, realized the production of automatic lithium cell group, alleviateed a large amount of labours, guaranteed that production quality has improved production efficiency.
2. This automatic spot welder of lithium cell through placing the mounting bracket and the nickel piece of different models and keeping in mounting bracket storage silo and nickel piece storage silo, inputs the model mode in the system, drives the mounting bracket through drive mechanism and removes different interval and span and realize the installation and the welding of different model lithium cells, has guaranteed the use of multiple model, and the limitation is little and application range is wider, has effectively reduced the cost of purchasing equipment.
3. This automatic spot welder of lithium cell through pouring the lithium cell into the feeding storehouse and make the conveyer belt carry the lithium cell, blocks through the baffle and guarantees that only placed a lithium cell between per two cylinders, has realized the orderly transport of lithium cell, has guaranteed equipment stability and processingquality, is favorable to unmanned on duty's automated production.
4. This automatic spot welder of lithium cell promotes lithium cell cooperation sensor through detecting the cylinder and carries out the detection of positive negative pole to drive through electric telescopic handle and adsorb the piece and snatch the lithium cell, drive lithium cell upset direction by switching motor, guaranteed the direction of group battery before inserting the mounting bracket, also can guarantee battery male direction when making the group battery production of different models, guaranteed subsequent production and processing, avoid artificial operation to put, reduced the labour and also effectively improved production efficiency.
5. This automatic spot welder of lithium cell drives the tong motion through drive mechanism, presss from both sides by the tong and gets the mounting bracket and carry out the installation and the welding of lithium cell, can continue to press from both sides after the welding accomplishes the discharge group battery and get the operation, has realized automatic unmanned on duty, has alleviateed personnel's work load, has improved production efficiency.
6. This lithium cell automatic spot welder drives the spot welding head through the welding cylinder and welds the group battery, releases the group battery by the discharge gate through row material cylinder after the welding, and the group battery after the convenient production is collected and is put, and the limitation is low and convenient subsequent operation.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a second perspective view of the overall structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the carriage according to the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the internal structure of the processing box according to the present invention;
FIG. 6 is a second schematic view of the internal structure of the processing box of the present invention;
FIG. 7 is a perspective view of the storage bin of the present invention;
fig. 8 is a perspective view of the structure of the slider according to the present invention.
In the figure: 101. a conveyor belt; 102. a feeding bin; 103. a baffle plate; 2. a processing box; 301. detecting a cylinder; 302. a sensor; 303. a compression spring; 304. switching the motors; 305. an electric telescopic rod; 306. an adsorption block; 307. a material pushing cylinder; 4. a mounting frame; 501. mounting a storage bin; 502. a nickel sheet storage bin; 503. a limiting plate; 504. a torsion spring; 505. an electrically operated valve; 601. a longitudinal guide rail; 602. a cross beam; 603. a slider; 604. clamping a hand; 701. welding the cylinder; 702. a spot welding head; 703. a discharge cylinder; 704. and (4) a discharge port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, an automatic spot welder for lithium batteries includes a conveyor for pouring lithium batteries for arrangement and conveyance;
the processing box 2 is used for processing the lithium battery inside;
the overturning and inserting mechanism is used for overturning the lithium battery with the reversed positive electrode and negative electrode in the conveying process and inserting the lithium battery;
the mounting rack 4 is used for inserting the lithium battery into a slotted hole in the mounting rack 4 and performing subsequent welding processing;
the storage bin is used for automatically installing and welding the storage mounting frame 4 and the nickel sheets;
the transmission mechanism is used for clamping the mounting frame 4 and driving the mounting frame to move at a fixed point so as to insert and weld the lithium battery;
and the welding mechanism is used for welding the lithium battery in the mounting rack 4 and the nickel sheets inserted on two sides of the mounting rack 4 and automatically pushing out the lithium battery after welding.
Further, the conveying frame comprises a conveying belt 101, the conveying belt 101 is formed by connecting a plurality of rollers, lithium batteries are located between the two rollers when being conveyed, a feeding bin 102 is arranged at the top of one side of the conveying belt 101, a baffle 103 is arranged at the bottom of the feeding bin 102, the baffle 103 is used for blocking the lithium batteries to ensure that only one lithium battery is placed between every two rollers, so that the lithium batteries are directly poured into the feeding bin 102 when the lithium batteries are used, the lithium batteries fall to the top of the conveying belt 101 under the action of gravity, the conveying belt 101 is formed by connecting a plurality of rollers, cylindrical lithium batteries can be conveyed in a gap between the two rollers, the lithium batteries can be blocked by the baffle 103 in the conveying process of the lithium batteries to prevent the lithium batteries from being accumulated in the same gap, the accumulated lithium batteries are blocked by the baffle 103 and slide to the gap behind, and the lithium batteries conveyed are ensured to be uniformly arranged between the rollers, and further, the ordered detection arrangement and subsequent processing of the lithium battery are ensured, and the stability and the feasibility of implementation are improved.
Further, the turning and inserting mechanism comprises a detection cylinder 301, the detection cylinder 301 is located on the front side of the conveying belt 101, a groove is formed in the other side of the conveying belt 101 and is inserted with a sensor 302, a compression spring 303 is arranged in the groove, the detection cylinder 301 is used for pushing the lithium battery to enter the groove and detecting the positive electrode and the negative electrode through the sensor 302, so that the conveying belt 101 moves at a fixed point in the conveying process, namely the conveying belt 101 moves for a certain distance to stop, then operates and stops, and the cycle is performed, thereby ensuring that the lithium battery can stop in the conveying process and then performs the operations of detection, turning of the positive electrode and the negative electrode and inserting the mounting frame 4, when detecting the lithium battery, the detection cylinder 301 starts and pushes the end part of the lithium battery to be close to the groove, the lithium battery resists and compresses the compression spring 303 under the pushing of the detection cylinder 301, because one end of the positive electrode of the lithium battery protrudes and the negative electrode is flat, and the diameter of the groove is the same as that of the lithium battery, so that when the lithium battery is pushed in, the lithium battery cannot enter the groove due to the blocking of the edge of the groove, the positive electrode protrudes out of the groove and contacts the sensor 302, the negative electrode on the contrary cannot contact the sensor 302, the detection of the positive electrode and the negative electrode of the lithium battery is realized through the signal feedback of the sensor 302, the automatic detection and adjustment of the positive electrode and the negative electrode of the lithium battery are further realized, the stability of subsequent welding is ensured, a large amount of labor force is reduced, and the production efficiency is improved.
Further, the turning and inserting mechanism comprises a switching motor 304, the switching motor 304 is erected on the top of the conveying belt 101, an electric telescopic rod 305 is fixed on the shaft portion of the switching motor 304, an adsorption block 306 is arranged at the bottom end of the electric telescopic rod 305, the adsorption block 306 is connected with an air pipe and used for forming a negative pressure environment and adsorbing lithium batteries, a material pushing cylinder 307 is arranged on one side of the detection cylinder 301 and used for pushing the lithium batteries into the mounting frame 4, so that the detected lithium batteries are fed back to the controller, when the positive and negative directions of the lithium batteries are opposite, the electric telescopic rod 305 extends out to enable the adsorption block 306 to contact the lithium batteries, at the moment, the air pipe connected with the adsorption block 306 sucks air to enable the interior of the lithium batteries to form a negative pressure state and suck the lithium batteries, then the electric telescopic rod 305 contracts to drive the lithium batteries to ascend, then the switching motor 304 rotates for 180 degrees to stop, after the lithium batteries are turned over, the electric telescopic rod 305 descends to place the lithium batteries back onto the conveying belt 101 for continuous transportation, when the lithium battery moves to the position of the material pushing cylinder 307, the material pushing cylinder 307 extends out to push the lithium battery into the mounting frame 4, so that automatic detection, overturning and mounting of the anode and the cathode of the lithium battery are realized, the correctness of anode and cathode access of the battery pack during welding is ensured, the production quality is ensured, and the production efficiency is also effectively improved.
Further, the storage bin comprises a mounting frame storage bin 501 and a nickel sheet storage bin 502, the mounting frame storage bin 501 and the nickel sheet storage bin 502 are both located at the top of the processing box 2, limiting plates 503 are symmetrically hinged to the bottom end of the mounting frame storage bin 501, a torsion spring 504 is arranged at the rotary joint of the limiting plates 503 and the side walls, an electric valve 505 is arranged at the bottom end of the nickel sheet storage bin 502, clamping grooves for placing nickel sheets are arranged at two sides of the mounting frame 4, so that the mounting frame 4 and the nickel sheets are firstly placed inside the mounting frame storage bin 501 and the nickel sheet storage bin 502 for temporary storage when in use, a transmission mechanism can grab the mounting frame 4 in the mounting frame storage bin 501 when in use, the limiting plate 503 has upward overturning force due to the connection of the torsion spring 504, the upper surface at the joint of the limiting plate 503 and the right-angle side walls is in a shape, the limiting plate 503 is guaranteed to be kept in a horizontal state under the torsion force of the torsion spring 504, and the limiting plate 503 is prevented from continuously overturning upwards, the lower surface of the limiting plate 503 is a rounded corner, so that the limiting plate 503 is prevented from being influenced by blocking, when the mounting frame 4 is taken out, the limiting plate 503 extrudes the torsion spring 504 and the limiting plate 503 is turned downwards, after one mounting frame 4 is taken out, the torsion spring 504 drives the limiting plate 503 to reset and plays a supporting role for the mounting frame 4 above, the rest of the mounting frames 4 are prevented from continuously falling, the lithium battery is inserted after the mounting frame 4 is taken out, after the lithium battery is completely inserted into the mounting frame 4, the mounting frame 4 is moved to the bottom of the nickel plate storage bin 502, the electric valve 505 is opened to enable the nickel plates to fall, the nickel plates fall and slide into the clamping grooves on the two sides of the mounting frame 4 for limiting, then the electric valve 505 is closed to prevent the rest of the nickel plates from continuously falling, automatic grabbing and mounting are further realized, the subsequent spot welding processing is facilitated, the production efficiency is greatly improved without manual operation, and a large amount of labor is saved. In addition, when the welding method is specifically applied, the welding modes of the nickel sheets of the battery packs of different models are different, so the shapes of the nickel sheets are different, and the nickel sheets are combined into a complete quadrangle by the insulating sheets in the production process, so that the nickel sheets are prevented from scattering and can be smoothly clamped into the clamping grooves on the two sides of the mounting frame 4 for subsequent welding.
Further, the transmission mechanism comprises a longitudinal guide rail 601, the longitudinal guide rail 601 is vertically installed at two sides of the processing box 2, a cross beam 602 is connected on the longitudinal guide rail 601 in a sliding manner, a slide block 603 is connected on the top of the cross beam 602 in a sliding manner, a clamping handle 604 is arranged at the top of the slide block 603, a groove clamped with the clamping handle 604 is arranged at the bottom surface of the mounting rack 4, so that the cross beam 602 slides on the longitudinal guide rail 601 in the processing process, the slide block 603 slides on the cross beam 602 and drives the clamping handle 604 to move, the movement structure is not repeated for the existing structure, firstly, the clamping handle 604 rises to the bottom of the mounting rack storage bin 501 to grab the mounting rack 4, the installation rack 4 is moved to the position corresponding to the material pushing cylinder 307 and is matched with the material pushing cylinder 307 to push the lithium battery into the mounting rack 4, the mounting rack 4 is driven to move up and down and left and right when one lithium battery slide block 603 is inserted, so that all lithium batteries are regularly inserted into the mounting rack 4, after all the insertion is finished, the sliding block 603 drives the mounting frame 4 to move to the bottom of the nickel sheet storage bin 502 to insert the nickel sheets, the nickel sheets continue to move to a welding position to be subjected to spot welding after being inserted, and the spot welding position is fixed, so that the sliding block 603 drives the mounting frame 4 to move to realize welding at different positions, different operations at different positions of the lithium battery pack are realized, assembly line type automatic production is formed, the production quality is guaranteed, and the production efficiency is improved.
Further, the welding mechanism comprises a welding cylinder 701, the welding cylinder 701 is symmetrically arranged on the side walls of the two sides of the processing box 2, a push rod of the welding cylinder 701 penetrates through the side wall of the processing box 2 and is provided with a spot welding head 702, a discharging cylinder 703 is arranged on the side wall of the processing box 2 and is positioned at the bottom of the welding cylinder 701, the end part of the discharging cylinder 703 penetrates into the processing box 2 and is provided with a push plate, a discharge hole 704 is arranged on the side wall of the processing box 2 and is opposite to the discharging cylinder 703, so that the welding cylinder 701 extends when the mounting frame 4 moves to the spot welding head 702, the welding cylinder 701 extends to drive the spot welding head 702 to extend and start welding lithium batteries and nickel sheets in the mounting frame 4, the slider 603 drives the mounting frame 4 to move and complete welding in the welding process, then the mounting frame 4 moves to the discharging cylinder 703, the clamping hand 604 opens and starts the discharging cylinder 703, the discharging cylinder 703 pushes the welded battery pack out through the discharge hole 704, and then made things convenient for and carried out automatic welding and discharge to the lithium cell, be convenient for collect and subsequent processing, effectively improved production efficiency.
The working principle is as follows: when the welding device is used, firstly, the model of the battery pack to be welded is input into the system, the model comprises the length, the width, the number, the arrangement mode and the distance between batteries, the correction of the anode and the cathode of the lithium battery in the conveying process is facilitated, the lithium battery after arrangement can be correctly inserted into the mounting frame 4, the transmission mechanism drives the sliding block 603 to move for different distances and spans when different battery packs are produced, the lithium batteries of different models are ensured to be installed into the mounting frame 4 through the accurate positioning movement of the transmission mechanism, the welding position is ensured to be correct through the accurate movement in the spot welding process, then, the mounting frame 4 and the nickel sheet are placed inside the mounting frame storage bin 501 and the nickel sheet storage bin 502 for temporary storage, then the lithium batteries are directly poured into the feeding bin 102, the lithium batteries fall to the top of the conveying belt 101 under the action of gravity, because the conveying belt 101 is formed by connecting a plurality of rollers, the cylindrical lithium batteries are conveyed in the gap between the two rollers, and the lithium batteries are prevented from being stacked in the same gap due to the fact that the baffle 103 can block the lithium batteries in the lithium battery conveying process, the stacked lithium batteries are blocked by the baffle 103 and slide to the gap behind, and the lithium batteries conveyed out are guaranteed to be uniformly arranged between the rollers.
The conveyor belt 101 is moved at a fixed point during the conveying process, that is, the conveyor belt 101 moves for a certain distance and stops, then the lithium battery is operated and stopped to circulate, thereby ensuring that the lithium battery can be stopped and then the operations of detection, anode and cathode overturn and insertion of the mounting rack 4 are carried out in the conveying process, when the lithium battery is detected, the detection cylinder 301 is started and pushes the end of the lithium battery close to the groove, the lithium battery resists and compresses the compression spring 303 under the pushing of the detection cylinder 301, because one end of the positive electrode of the lithium battery is more protruded while the negative electrode is flat, and the diameter of the groove is the same as that of the lithium battery, the lithium battery cannot enter the groove due to the blocking of the edge of the groove when the lithium battery is pushed in, the positive electrode protrudes out of the groove and contacts the sensor 302, the opposite negative electrode does not contact the sensor 302, and the detection of the positive electrode and the negative electrode of the lithium battery is realized through signal feedback of the sensor 302.
Feed back to the controller through the lithium cell that detects, when the positive negative pole direction of lithium cell is opposite, electric telescopic handle 305 stretches out to make and adsorbs piece 306 and contact the lithium cell, the trachea of adsorbing the connection of piece 306 this moment is breathed in and is made its inside negative pressure state of formation and suck the lithium cell, then electric telescopic handle 305 contracts and drives the lithium cell and rise, switching motor 304 rotates 180 degrees afterwards and stops, electric telescopic handle 305 descends and puts back the lithium cell and continue the transportation on conveyer belt 101 after the lithium cell upset is accomplished, the lithium cell that the direction is correct then need not carry out the upset operation, make the orderly range of lithium cell carry.
Meanwhile, the cross beam 602 slides on the longitudinal guide rail 601, the sliding block 603 slides on the cross beam 602 and drives the clamping hand 604 to move, the clamping hand 604 rises to the bottom of the mounting rack storage bin 501 to grab the mounting rack 4, the limiting plate 503 has upward overturning force due to the connection of the torsion spring 504, the upper surface of the joint of the limiting plate 503 and the side wall is right-angled, the limiting plate 503 is kept horizontal under the torsion action of the torsion spring 504, the limiting plate 503 is prevented from continuously overturning upwards, the lower surface of the limiting plate 503 is rounded, the limiting plate 503 is prevented from being blocked and influenced to overturn downwards, the limiting plate 503 extrudes the torsion spring 504 and enables the limiting plate 503 to overturn downwards when the mounting rack 4 is taken out, after one mounting rack 4 is taken out, the limiting plate 503 is driven to reset by the torsion spring 504 without resistance and plays a supporting role in supporting the mounting rack 4 above, and the rest mounting racks 4 are prevented from continuously falling down, snatch behind the mounting bracket 4 and move to pushing away the relative position of material cylinder 307 and cooperate and push away material cylinder 307 and push away the lithium cell inside mounting bracket 4, every inserts a lithium cell slider 603 and will drive the mounting bracket 4 and move about from top to bottom, make all lithium cells regular insert inside the mounting bracket 4, it drives the mounting bracket 4 and moves to nickel piece storage silo 502 bottom and carry out the inserting of nickel piece to wait to insert to accomplish back slider 603, make the mounting bracket 4 move to nickel piece storage silo 502 bottom and open electric valve 505 and make the nickel piece fall after the lithium cell all inserts mounting bracket 4, the nickel piece falls and limits in the draw-in groove of the back slip-in mounting bracket 4 both sides, electric valve 505 closes afterwards and prevents that all the other nickel pieces from continuing to drop.
Then, the installation frame 4 is moved to a welding position to be subjected to spot welding, the welding cylinder 701 extends out from the position of the spot welding head 702 when the installation frame 4 is moved, the welding cylinder 701 extends out to drive the spot welding head 702 to extend out and start to weld a lithium battery and a nickel sheet in the installation frame 4, the sliding block 603 drives the installation frame 4 to move and complete welding in the welding process, the installation frame 4 is moved to the discharging cylinder 703, the clamping hand 604 opens and starts the discharging cylinder 703, the discharging cylinder 703 pushes out a welded battery pack and discharges the battery pack through the discharging hole 704, and the device continues to repeat the operations after welding of the battery pack is completed, so that automatic circular production can be achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An automatic spot welder of lithium cell, its characterized in that includes:
the conveying frame is used for pouring the lithium batteries for arrangement and conveying;
the processing box (2) is used for processing the lithium battery inside;
the overturning and inserting mechanism is used for overturning the lithium battery with the reversed positive electrode and negative electrode in the conveying process and inserting the lithium battery;
the mounting rack (4) is used for inserting the lithium battery into a slotted hole in the mounting rack (4) and performing subsequent welding processing;
the storage bin is used for automatically installing and welding the storage mounting frame (4) and the nickel sheets;
the transmission mechanism is used for clamping the mounting rack (4) and driving the mounting rack to move at a fixed point so as to insert and weld the lithium battery;
and the welding mechanism is used for welding the lithium battery in the mounting rack (4) and the nickel sheets inserted on two sides of the mounting rack (4) and automatically pushing out the lithium battery after welding.
2. The lithium battery automatic spot welding machine according to claim 1, characterized in that: the conveying frame comprises a conveying belt (101), the conveying belt (101) is formed by connecting a plurality of rollers, the lithium batteries are located between the two rollers when being conveyed, a feeding bin (102) is arranged at the top of one side of the conveying belt (101), a baffle (103) is arranged at the bottom of the feeding bin (102), and the baffle (103) is used for blocking the lithium batteries to ensure that only one lithium battery is placed between every two rollers.
3. The lithium battery automatic spot welding machine according to claim 2, characterized in that: the overturning and inserting mechanism comprises a detection cylinder (301), the detection cylinder (301) is located on the front side of the conveying belt (101), a groove is formed in the other side of the conveying belt (101) and is connected with a sensor (302) in an inserting mode, a compression spring (303) is arranged in the groove, and the detection cylinder (301) is used for pushing a lithium battery to enter the groove and detecting a positive electrode and a negative electrode through the sensor (302).
4. The lithium battery automatic spot welding machine according to claim 3, characterized in that: upset grafting mechanism is including switching motor (304), switching motor (304) erect and conveyer belt (101) top, switching motor (304) axial region is fixed with electric telescopic handle (305), electric telescopic handle (305) bottom is provided with adsorbs piece (306), adsorb piece (306) connecting pipe and be used for forming negative pressure environment and adsorb the lithium cell, it pushes away material cylinder (307) to detect cylinder (301) one side, it is used for pushing away the lithium cell in mounting bracket (4) to push away material cylinder (307).
5. The lithium battery automatic spot welding machine according to claim 1, characterized in that: the storage silo includes mounting bracket storage silo (501) and nickel piece storage silo (502), mounting bracket storage silo (501) and nickel piece storage silo (502) all are located processing case (2) top, mounting bracket storage silo (501) bottom symmetry articulates there is limiting plate (503), limiting plate (503) rotate the junction with the lateral wall and are provided with torsional spring (504), nickel piece storage silo (502) bottom is provided with electric valve (505), mounting bracket (4) both sides are provided with the draw-in groove that is used for placing the nickel piece.
6. The lithium battery automatic spot welding machine according to claim 1, characterized in that: drive mechanism includes longitudinal guide (601), vertical installation in processing case (2) both sides of longitudinal guide (601), sliding connection has crossbeam (602) on longitudinal guide (601), crossbeam (602) top sliding connection has slider (603), slider (603) top is provided with tong (604), mounting bracket (4) bottom surface is provided with the groove with tong (604) joint.
7. The lithium battery automatic spot welding machine according to claim 1, characterized in that: welding mechanism includes welding cylinder (701), welding cylinder (701) symmetry sets up at processing case (2) both sides lateral wall, welding cylinder (701) push rod runs through processing case (2) lateral wall and is provided with spot welding head (702), processing case (2) lateral wall just is located welding cylinder (701) bottom and is provided with row material cylinder (703), it runs through and gets into processing case (2) inside and is provided with the push pedal to arrange material cylinder (703) tip, processing case (2) lateral wall just is provided with discharge gate (704) for row material cylinder (703) department.
CN202110878608.4A 2021-08-02 2021-08-02 Automatic spot welding machine for lithium battery Withdrawn CN113523663A (en)

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Application Number Priority Date Filing Date Title
CN202110878608.4A CN113523663A (en) 2021-08-02 2021-08-02 Automatic spot welding machine for lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110878608.4A CN113523663A (en) 2021-08-02 2021-08-02 Automatic spot welding machine for lithium battery

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CN113523663A true CN113523663A (en) 2021-10-22

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CN202110878608.4A Withdrawn CN113523663A (en) 2021-08-02 2021-08-02 Automatic spot welding machine for lithium battery

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114799524A (en) * 2022-06-28 2022-07-29 如东科特机电科技有限公司 Automatic intelligent welding equipment in pairs of group battery
CN117300458A (en) * 2023-11-23 2023-12-29 广东东博智能装备股份有限公司 Double-machine-head horizontal automatic spot welding assembly machine for battery packs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114799524A (en) * 2022-06-28 2022-07-29 如东科特机电科技有限公司 Automatic intelligent welding equipment in pairs of group battery
CN114799524B (en) * 2022-06-28 2022-09-02 如东科特机电科技有限公司 Automatic intelligent welding equipment in pairs of group battery
CN117300458A (en) * 2023-11-23 2023-12-29 广东东博智能装备股份有限公司 Double-machine-head horizontal automatic spot welding assembly machine for battery packs
CN117300458B (en) * 2023-11-23 2024-02-20 广东东博智能装备股份有限公司 Double-machine-head horizontal automatic spot welding assembly machine for battery packs

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Application publication date: 20211022