CN115971601A - A kind of intelligent welding equipment for lithium battery and circuit board - Google Patents

Abstract

The invention discloses intelligent welding equipment for a lithium battery and a circuit board, which comprises a rack, a battery cell conveyer belt, a battery cell clamping mechanism, a circuit board tray module, a feeding mechanical arm mechanism, a circuit board positioning mechanism, a positioning material moving mechanism, a station circulating mechanism and a laser welding device, wherein a circuit board to be welded with a battery cell of the lithium battery is arranged on the circuit board tray module, the feeding mechanical arm mechanism can place the circuit board on the circuit board tray module on the circuit board positioning mechanism to realize position positioning, the station circulating mechanism comprises an annular conveying module, jig carrying discs, a positioning locking assembly, a lug leveling station, a battery cell feeding station, a lug welding station, a welding seam detection station and a battery cell blanking station, and each jig carrying disc can be respectively rotated to each station for independent processing by the annular conveying module. The invention can accurately position and weld the battery core of the lithium battery and the nickel sheet of the circuit board, and the welding process is carried out automatically, thereby greatly improving the welding efficiency between the lithium battery and the circuit board.

Description

A kind of intelligent welding equipment for lithium battery and circuit board

technical field

The invention relates to the field of lithium battery welding equipment, in particular to an intelligent welding equipment for lithium batteries and circuit boards.

Background technique

With the rapid development of electronic technology and new energy vehicles, the lithium battery technology used in electronic products and new energy vehicles has been improved, increasing the demand for lithium batteries.

In the prior art, the battery cell of the lithium battery is usually welded with a protective circuit board to protect the lithium battery and improve the safety performance of the lithium battery. At present, in lithium battery manufacturers, the welding method between the lithium battery cell and the protective circuit board is still manual welding. Manually fix the battery cell and protective circuit board of the lithium battery on the jig, and then use welding equipment to weld, only one lithium battery can be welded at a time. In this way, not only the welding efficiency is low, the operator's workload is heavy, but also due to There are also differences in the welding quality of different personnel, making it difficult to control the quality of lithium batteries after welding;

In addition, although there are some automatic equipment on the market that can weld the protective circuit board to the lithium battery cell, the functions of these equipment are relatively single. The precise positioning between the nickel sheets connected to the board causes the position between the lithium battery and the circuit board to shift, thereby affecting the welding quality; and some welding equipment with rich functions, the production process design is not compact enough, resulting in a large equipment footprint , high land cost.

Therefore, how to overcome the existing problems, thereby improving the production efficiency and welding accuracy of lithium batteries, reducing production costs, and satisfying intelligent production has become an urgent problem for lithium battery manufacturers.

Contents of the invention

The technical problem to be solved by the present invention is to provide an intelligent welding equipment for lithium batteries and circuit boards that improves production efficiency, welding precision, has rich functions, and can realize automatic production.

The technical scheme of the present invention is as follows: an intelligent welding equipment for lithium batteries and circuit boards, including a frame, a battery conveyor belt, a battery clamping mechanism, a circuit board tray module, a feeding manipulator mechanism, and a circuit board positioning mechanism , positioning and shifting mechanism, station circulation mechanism and laser welding device;

The two groups of circuit board tray modules are respectively arranged on the left and right sides of the front end of the frame, and the circuit board tray modules are equipped with circuit boards to be welded with the batteries of lithium batteries;

A circuit board positioning mechanism is provided at the rear side of the circuit board tray module, and a feeding manipulator mechanism is respectively provided above the circuit board tray module, and the feeding manipulator mechanism can place the circuit board tray module on the The circuit board is placed on the circuit board positioning mechanism to achieve position positioning;

The middle part of the frame is provided with a station circulation mechanism;

The station circulation mechanism includes an annular conveying module, a jig carrier, a positioning and locking assembly, a tab leveling station, a cell loading station, a tab welding station, a weld detection station, and an electrical station. Core blanking station;

The circular conveying module is provided with ten fixture carriers for positioning and placing lithium battery cells and circuit boards; four sets of lug leveling tools are arranged on the frame at the front end of the circular conveying module. bit;

A set of cell loading stations and two sets of tab welding stations are arranged side by side on the frame at the rear end of the circular conveying module;

A welding seam detection station is provided on the frame at the right end of the circular conveying module, and a cell blanking station is provided on the frame at the left end of the circular conveying module;

The annular conveying module can move each jig carrier to each station for processing separately, and realize braking and locking of the jig carrier through the positioning and locking assembly;

A battery conveyor belt is provided above the circular conveying module, and the battery conveyor belt can load and transport the battery cells to be welded to the circuit board;

A battery clamping mechanism is provided between the battery conveyor belt and the battery feeding station, and the battery clamping mechanism can clamp the batteries on the battery conveyor belt to the bottom of the battery feeding station on the fixture carrier plate;

A positioning material transfer mechanism is provided between the circuit board positioning mechanism and the tab leveling station, and the positioning material transfer mechanism can place the positioned circuit board on the jig carrier plate on the tab leveling station, And use the tab leveling station to level and align the cell tabs of the lower jig carrier plate;

When the jig carrier with the leveling and alignment of the battery tabs is moved to the tab welding station, the tab welding station can position the battery tabs and the nickel sheet of the circuit board, so that Said laser welding device welds it;

The welding seam detection station can carry out the welding seam inspection on the battery cell which has completed the tab welding, and when the detection is qualified, the circular conveying module can transport the battery cell on the jig carrier plate to the battery cutting worker Carry out blanking on the position;

Wherein, the fixture carrier plate includes a carrier plate base, a battery cell clamping assembly, and a tab support block, and the left and right sides of the carrier plate base are respectively provided with cell positioning slots for positioning and placing lithium battery cells. , the front end of the cell positioning groove is provided with a circuit board positioning groove for positioning and placing the circuit board;

A welding groove is provided between the positioning groove of the battery core and the positioning groove of the circuit board, and a tab supporting block is provided in the welding groove, and the tab of the battery core to be welded and the nickel sheet of the circuit board are located on the tab holding block. above the block;

The battery cell positioning groove is provided with a battery cell clamping assembly to clamp and position the lithium battery cell in the battery cell positioning groove;

The cell clamping assembly includes a fixed side baffle, a side baffle telescopic piece and a rear baffle telescopic piece, and the left side of the cell positioning groove is provided with a fixed side baffle;

The right side of the cell positioning slot is provided with a side baffle telescopic piece, and the rear side of the cell positioning slot is provided with a back baffle telescopic piece, and the side baffle telescopic piece and the back baffle telescopic piece can be elastically Under the action of force, the battery core in the battery positioning groove is clamped;

The telescopic part of the side baffle includes a movable side baffle, a first elastic module and a side push plate;

The right side of the cell positioning groove is provided with a first chute, the movable side baffle is located in the first chute, and the bottom of the movable side baffle is provided to push it out of the first chute and connect with the cell. The first elastic module whose side end abuts, the side push plate is connected to the first elastic module, and the side end of the side push plate is provided with a transition arc structure;

The telescopic part of the tailgate includes a movable tailgate, a second elastic module and a push-pull plate;

There is a second chute on the rear side of the cell positioning groove, the movable rear baffle is located in the second chute, and the bottom of the movable rear baffle is provided to push it out of the second chute and connect with the battery cell. The second elastic module whose rear end abuts, the push-pull plate is connected to the second elastic module, and the front end of the push-pull plate is provided with a top block;

The cell loading station has the same structure as the cell blanking station, both of which include rear baffle push cylinders, lateral push blocks, side baffle push cylinders, jacking blocks and rollers;

The movable end of the rear baffle push cylinder is connected with the horizontal push block, the movable end of the side baffle push cylinder is connected with the jacking block, and the top of the jacking block is provided with rollers;

When the jig carrier rotates to the cell loading station or cell blanking station, the rear baffle pushes the cylinder to move the jacking block backward through the horizontal push block, and the side baffle pushes the cylinder Push the jacking block to lift, so that the roller pushes the transitional arc structure of the side push plate to move laterally, so as to overcome the elastic force of the first elastic module and the second elastic module respectively, and make the movable side stop The board and the movable rear baffle are separated from the battery core respectively.

Adopting the above technical solution, in the intelligent welding equipment for lithium batteries and circuit boards, the circular conveying module includes a driving motor, a driving gear, a driven gear, an endless conveyor belt, a circular guide rail and a moving slide, and the driving The motor is connected to the bottom of the driving gear, and the driving gear is meshed with the driven gear through the endless conveyor belt. The outer side of the endless conveyor belt is provided with a circular guide rail, and the bottom of the moving slide is provided with a sliding connection with the side wall of the circular guide rail. guide pulley, and the moving slide is connected with the endless conveyor belt through the splint, the jig carrier is set on the moving slide, and the drive motor can drive the driving gear to rotate to drive the jig through the endless conveyor belt The carrier plate realizes circular movement on the circular guide rail, thereby realizing the position switching of the fixture carrier plate;

Positioning and locking components are respectively provided around the circular conveying module, and the positioning and locking components include a bearing seat, a rotating shaft, a locking cylinder, a rotating pull rod, a locking rod and a brake wheel, and the rotating shaft passes through the bearing seat. The activity is arranged at the side end of the circular guide rail, the locking cylinder is arranged under the circular guide rail, and the locking cylinder is connected with the rotary shaft through the rotating pull rod, the rotary shaft is provided with a locking rod, and the moving slide There is a positioning arc on the outer wall of the locking rod, and a brake wheel is provided on the top of the locking rod to fit and abut against the positioning arc. When the jig carrier moves to the preset position At this time, the locking cylinder drives the rotary shaft to rotate by rotating the pull rod to swing the angle of the locking rod, so that the brake wheel is close to the positioning arc of the moving slide, thereby realizing the adjustment of the jig. The positioning brake of the carrier plate.

By adopting the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the circuit board tray module includes a reserve tray assembly, a tray assembly, a tray adjustment assembly, and a tray positioning assembly. The tray assembly and the retrieving tray assembly are arranged side by side;

The storage tray assembly has the same structure as the retrieving tray assembly, and the retrieving tray assembly includes a tray warehouse, a screw lifting mechanism, a lifting plate, a connecting rod, a tray carrier plate and a circuit board tray, and the screw lifting mechanism It is located under the tray warehouse, and the screw lifting mechanism is connected with the lifting plate to drive it to move up and down. The top of the lifting plate is connected to the tray carrier through a connecting rod, and the tray carrier is located in the tray bin , the top of the tray carrier is stacked with a number of circuit board trays, the circuit board tray is provided with a number of circuit board placement slots for placing circuit boards to be loaded, and the feeding manipulator mechanism can store the tray assembly The circuit board tray loaded with circuit boards is placed in the take-up tray assembly;

The tray adjustment assembly includes a fixed frame, a horizontal adjustment cylinder, and a clamping plate. An opening is provided at a corner position of the tray warehouse of the retrieving tray assembly, and the fixed frame is arranged at the side end of the opening. Horizontal adjustment cylinder, the movable end of the horizontal adjustment cylinder is connected to the clamping plate, and the side of the clamping plate close to the circuit board tray is provided with a clamping opening. When the circuit board tray is placed on the retrieving tray assembly, the horizontal adjustment cylinder can push the clamping plate to abut against the uppermost circuit board tray, so as to centrally adjust the position of the circuit board tray;

The tray positioning assembly is located on the left and right sides of the retrieving tray assembly. The tray positioning assembly includes a telescopic cylinder, a connecting arm and a disk insertion block. The connecting arm is connected with the inserting plate block, and the inserting plate block is located at the side end of the circuit board tray of the retrieving tray assembly, and the side end of the circuit board tray is provided with a slot adapted to the inserting plate block. When the manipulator mechanism picks up the circuit boards on the retrieving tray assembly, the inserting block of the tray positioning assembly is plugged into the slot of the uppermost circuit board to clamp the uppermost circuit board tray on both sides. .

Using the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the feeding manipulator mechanism includes a support frame, a multi-axis mechanical arm, a mounting plate, a suction tray assembly, and a clamping circuit board assembly. The support frame is set on the frame at the side end of the circuit board material tray module. The support frame is provided with a multi-axis mechanical arm, and the multi-axis mechanical arm is connected with the mounting plate. The suction cup assembly and the clip circuit board assembly are respectively arranged on On the installation board, the suction cup assembly can absorb the circuit board tray loaded with circuit boards on the reserve tray assembly into the take-up tray assembly, and the clip circuit board assembly can hold the circuit board tray on the uppermost layer of the tray assembly. The circuit board is clamped into the circuit board positioning mechanism for loading and positioning;

The suction pan assembly includes a suction pan cylinder, a suction nozzle bracket and a number of first vacuum suction nozzles, the suction pan cylinder is arranged on a mounting plate, the movable end of the suction pan cylinder is connected to the suction nozzle bracket, A plurality of the first vacuum nozzles are respectively arranged on the nozzle bracket, and the first vacuum nozzles can move the circuit board tray on the storage tray assembly to the tray carrier in the take-up tray assembly through negative pressure adsorption superior;

The clamping circuit board assembly includes a first lifting cylinder, a first lifting seat, a first magnetic block, a clamping finger cylinder and two clamping finger blocks, the first lifting cylinder is arranged on the mounting plate, and the first lifting The movable end of the air cylinder is connected to the first lifting seat, and the two ends of the bottom of the first lifting seat are respectively equipped with first magnetic blocks connected with the nickel sheet of the circuit board, and the finger-clamping cylinder is arranged on the first lifting seat. The side end of the mounting plate of the seat, and the two movable ends of the finger cylinder are respectively connected with the finger block, and the finger block can be moved closer to or separated from each other under the action of the finger cylinder to align the end of the circuit board. For stable gripping.

Adopting the above-mentioned technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the circuit board positioning mechanism includes a U-shaped frame, a pulley transmission assembly, a turning shaft, a turning seat, a protruding support assembly, a biaxial The micro-movement component and the optical fiber sensor, the top of the U-shaped frame is provided with a turning shaft, the turning seat is arranged on the turning shaft, and the pulley transmission component is connected with the side end of the turning shaft to drive the turning seat to realize the turning angle Adjustment, the top edge of the flip seat is provided with a horizontal placement area for positioning and placing the circuit board, and the left and right sides of the horizontal placement area are provided with optical fiber sensors for detecting whether the circuit board is positioned accurately. One side of the horizontal placement area A protruding support component is provided to position and support the front end of the circuit board, and a biaxial micro-movement component is provided on the other side of the horizontal placement area to compact and micro-tighten the rear end of the circuit board. shift;

The extending support assembly includes an extending cylinder, a connecting plate and a supporting base plate, the extending cylinder is arranged at the bottom of the turning seat, the movable end of the extending cylinder is connected with the supporting base plate through a connecting plate, and the supporting The side wall of the bottom plate abuts against the nickel sheet of the circuit board;

The two-axis micro-movement assembly includes an X-axis pushing cylinder, an X-axis moving frame, a Y-axis pushing cylinder, a Y-axis moving seat, a tilting block, a positioning frame, and a lifting and lowering seat; the X-axis pushing cylinder is arranged on the turning seat At the bottom, the movable end of the X-axis pushing cylinder is connected with the X-axis moving frame, and the left and right sides of the turning seat are provided with a third chute, and the X-axis pushing cylinder can push the X-axis moving frame in the third chute The X-axis movement is realized inside; the top of the X-axis moving frame is provided with a Y-axis pushing cylinder, and the movable end of the Y-axis pushing cylinder is connected with the Y-axis moving seat, and the front end of the Y-axis moving seat is provided with a top slanting block, A positioning frame is arranged on the X-axis mobile frame located below the top slanting block, and the middle part of the positioning frame is provided with an avoidance groove. The pressure seat includes a horizontal section and a vertical section perpendicular to the horizontal section, the horizontal section of the lifting pressure seat is sleeved and connected with the guide column, and the horizontal section of the lifting pressure seat is close to the side of the horizontal placement area The end is provided with a step that is pressed with the circuit board, the vertical section of the lifting pressure seat is located in the avoidance groove, and the top of the vertical section of the lifting pressure seat is provided with a follower wheel, and the follower wheel is located On the plane part at the top of the block, the side end of the plane part is provided with an inclined part; the Y-axis pushes the cylinder to drive the top inclined block to move sideways in the Y-axis direction, so that the follower wheel on the top of the lifting and lowering seat slides to the top. On the inclined part of the inclined block, the lifting adjustment of the lifting pressure seat is realized, and the lifting height of the lifting pressure seat is promoted to adapt to the thickness of the circuit board, and then the X-axis pushing cylinder can be driven by the X-axis moving frame The lifting and lowering seat moves to the top of the circuit board, and then the Y-axis pushes the cylinder to drive the lifting and lowering seat to descend, so that the steps are pressed on the surface of the circuit board, and finally the X-axis pushes the expansion and contraction of the cylinder to realize the adjustment. Position adjustment of the circuit board;

The positioning and material shifting mechanism includes a first column, a first linear movement module, a first lifting movement module, a fixed plate, a second lifting cylinder, a second lifting seat and a second magnetic block. The first column Set on the frame, the top of the first column is provided with a first linear movement module, the movable end of the first linear movement module is connected with the first lifting movement module, and the first lifting movement module The movable end of the group is connected to the fixed plate, the second lifting cylinder is arranged on the fixed plate, the movable end of the second lifting cylinder is connected to the second lifting seat, and the bottom of the second lifting seat is provided with a magnetic adsorption circuit The second magnetic block of the plate nickel sheet can position and transport the circuit board positioned in the circuit board positioning mechanism to the pole through the biaxial movement of the first linear movement module and the first lifting movement module. On the jig carrier plate on the ear leveling station.

Using the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the lug leveling station includes a support plate, a third lifting cylinder, a third lifting seat, a third magnetic block, a fourth Lifting cylinder, L-shaped frame and leveling press block, the support plate is arranged on the frame, the third lifting cylinder is arranged on the back of the support plate, and the movable end of the third lifting cylinder is provided with a third lifting seat , the side wall of the third lifting seat is provided with a third magnetic block, the third magnetic block is located directly below the lug support block, and the third lifting cylinder can drive the third magnetic block Perform lifting movement to magnetically locate the nickel sheet of the circuit board on the lug supporting block, the fourth lifting cylinder is arranged on the front of the support plate, and the movable end of the fourth lifting cylinder is connected to the L-shaped frame connection, the L-shaped frame is provided with a leveling pressing block, and when the nickel sheet of the circuit board is positioned and magnetically attracted by the third magnetic attraction block, the fourth lifting cylinder drives the leveling pressing block to press down to The position of the nickel sheet on the circuit board is pressed down and leveled.

Adopting each of the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the laser welding device is a double-headed laser spot welding machine, the laser welding device is set above the tab welding station, the pole The ear welding station includes a second column, a fifth lifting cylinder, a fourth lifting seat, a second slide rail, a second slider, a second spring member, a tab positioning seat, and a tab pressing block. On the frame, the second lifting cylinder is arranged on the top of the second column, the movable end of the fifth lifting cylinder is connected to the fourth lifting seat, and the two second slide rails are respectively arranged on the sides of the fourth lifting seat. On the left and right sides, the second slide rail is connected to the lug positioning seat through the second slider, and the lug positioning seat is provided with a tab pressing block, and the tab pressing block is provided with a laser welding device to facilitate alignment. The avoidance hole for welding the tab of the battery cell and the nickel sheet of the circuit board, a second spring member is provided between the top of the tab positioning seat and the top of the fourth lifting seat, and the fifth lifting cylinder can drive the tab pressing block It is crimped on the tab of the electric core to prevent the tab of the electric core from shifting during the welding process, and then the laser welding device can emit a laser passing through the avoidance hole to connect the tab of the electric core to the circuit The nickel sheet of the plate is welded and fixed.

Using the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the structure of the first elastic module is the same as that of the second elastic module, and the first elastic module includes a fixing seat, a first The slide rail, the first slider, the first spring piece and the connecting piece, the fixed seat is arranged on the back of the carrier base, the first slide rail is arranged on the fixed seat, and the first slide block is slidably arranged on the second On a slide rail, the first slider is connected to the connecting piece, the top of the connecting piece passes through the first chute and is connected to the movable side baffle, the front end of the connecting piece is connected to the side push plate, the The side end of the fixed seat is provided with a limit plate, and a first spring member is provided between the limit plate and the connecting piece, and under the elastic force of the first spring piece, the movable side connected to the connecting piece can be pushed. The baffle abuts against the side end of the battery core.

Using the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the welding seam detection station includes a gantry and four laser sensors located on the top of the gantry, and the four laser sensors can be The welding seam laser inspection is carried out on the four welds of the two batteries on the fixture carrier respectively.

By adopting the above technical solutions, in the intelligent welding equipment for lithium batteries and circuit boards, the cell clamping mechanism includes a third column, a second linear moving module, a second lifting moving module, and a suction nozzle fixing plate And several second vacuum suction nozzles, the third column is arranged on the frame, the second linear movement module is arranged on the top of the third column, the movable end of the second linear movement module is connected with the second lifting movement Module connection, the movable end of the second lifting and moving module is connected to the suction nozzle fixing plate, and the left and right sides of the suction nozzle fixing plate are respectively provided with a number of second vacuum suction nozzles to transport the battery cells The two batteries on the top are clamped to the two battery positioning grooves of the jig carrier plate on the battery loading station at the same time.

Compared with the prior art, the battery conveyor belt of the present invention can load and transport the lithium battery cells to be welded circuit boards, and the battery cells on the battery conveyor belt can be clamped to the working area by the battery cell clamping mechanism. Then the station circulation mechanism drives the jig carrier plate equipped with lithium battery cells to rotate circularly, so as to transfer the jig carrier plate to the tab At the leveling station, since the circuit board module is equipped with a circuit board to be welded with the battery cell of the lithium battery, the feeding manipulator mechanism can place the circuit board on the circuit board module on the circuit board positioning mechanism Realize position positioning, and then place the circuit board that has been positioned on the jig carrier plate on the lug leveling station through the positioning and material transfer mechanism, and the tab leveling station can adjust the cell tabs of the jig carrier Alignment, and then the station circulation mechanism can move the jig carrier to the tab welding station, and the laser welding device can press and weld the battery tab of the lithium battery and the nickel sheet of the circuit board. After welding, The station circulation mechanism can rotate the jig carrier to the welding seam inspection station for weld inspection. After the inspection is qualified, the station circulation mechanism can rotate the jig carrier to the cell unloading station. The core blanking station can unlock the battery cells on the jig carrier plate, which is convenient to complete the blanking. The entire production welding process is automated, which saves the cumbersome manual operation and greatly improves the welding efficiency between the lithium battery and the circuit board. ;In addition, after the circular conveying module of the station circulation mechanism completes the station rotation switch on the jig carrier, the positioning and locking component can lock and position the jig carrier to prevent the jig carrier Shaking occurs during flattening, welding or retrieving, thereby improving the welding accuracy of lithium batteries.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the layout of the station circulation mechanism of the present invention;

Fig. 3 is a structural schematic diagram of the station circulation mechanism of the present invention;

Fig. 4 is the schematic diagram of the layout structure of the circuit board material tray module and the feeding manipulator mechanism of the present invention;

Fig. 5 is a schematic structural view of the feeding manipulator mechanism of the present invention;

Fig. 6 is a schematic structural diagram of the circuit board tray module of the present invention;

Fig. 7 is a structural schematic diagram of the circuit board positioning mechanism of the present invention;

Fig. 8 is a structural schematic diagram of another viewing angle of the circuit board positioning mechanism of the present invention;

Fig. 9 is a structural schematic diagram of the positioning and material shifting mechanism of the present invention;

Fig. 10 is a schematic diagram of the top structure of the fixture carrier plate of the present invention;

Fig. 11 is a schematic diagram of the bottom structure of the jig carrier plate of the present invention;

Fig. 12 is a schematic structural diagram of the cell clamping assembly of the present invention;

Fig. 13 is a schematic structural diagram of the lug leveling station of the present invention;

Fig. 14 is a schematic structural diagram of the cell loading station of the present invention;

Fig. 15 is a structural schematic diagram of the tab welding station of the present invention;

Fig. 16 is a schematic structural view of the laser welding device of the present invention;

Fig. 17 is a schematic structural diagram of the welding seam detection station of the present invention;

Fig. 18 is a structural schematic diagram of the cell clamping mechanism of the present invention;

Fig. 19 is a schematic diagram of the welding relationship between the lithium battery cell and the circuit board of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of this patent application clearer, the technical solutions in the embodiments of this patent application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this patent application. Obviously, the described The implementations are part of the implementations of this patent application, but not all of them. Based on the implementations in this patent application, all other implementations obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent application. Accordingly, the following detailed description of the embodiments of the present patent application provided in the accompanying drawings is not intended to limit the scope of the claimed patent application, but merely represents selected embodiments of the present patent application. Based on the implementations in this patent application, all other implementations obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent application.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "inside" etc. are based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

As shown in Figures 1 to 19, an intelligent welding equipment for lithium batteries and circuit boards, including a frame 1, a battery conveyor belt 2, a battery clamping mechanism 3, a circuit board tray module 4, and a feeding manipulator Mechanism 5, circuit board positioning mechanism 6, positioning and material shifting mechanism 7, station circulation mechanism 8 and laser welding device 9;

The two groups of circuit board tray modules 4 are respectively arranged on the left and right sides of the front end of the frame 1, and the circuit board tray modules 4 are equipped with circuit boards to be welded with the cells of the lithium battery. In this embodiment, the circuit board has an L-shaped structure, and the horizontal part of the circuit board is provided with a nickel sheet welded to the tab of the battery cell.

The circuit board tray module 4 rear end is provided with a circuit board positioning mechanism 6, and the top of the circuit board tray module 4 is respectively provided with a feeding manipulator mechanism 5, and the described feeding manipulator mechanism 5 can place the circuit board The circuit board on the tray module 4 is placed on the circuit board positioning mechanism 6 to realize the position positioning, so as to realize the precise processing of the subsequent process of the circuit board;

As shown in Figures 1 to 3, a station circulation mechanism 8 is provided in the middle of the frame 1, and the station circulation mechanism 8 includes an annular conveying module 81, a jig carrier plate 82, a positioning locking assembly 83, Tab leveling station 84, cell loading station 85, tab welding station 86, weld inspection station 87 and cell blanking station 88;

The annular conveying module 81 is provided with ten fixture carriers 82 for positioning and placing lithium battery cells and circuit boards; Ear leveling station 84, the tab leveling station 84 can stably flatten the tab of the lithium battery cell and the nickel sheet of the circuit board;

On the frame 1 located at the rear end of the circular conveying module 81 , a set of cell loading stations 85 and two sets of tab welding stations 86 are arranged side by side. The cell loading station 85 can carry out the charging operation of the lithium battery cell, and the tab welding station 86 can press and clamp the cell tab of the lithium battery and the nickel sheet of the circuit board, which is convenient for the laser welding device 9 Fix by welding.

The frame 1 located at the right side of the circular conveying module 81 is provided with a welding seam detection station 87 , and the frame 1 located at the left end of the circular conveying module 81 is provided with a cell blanking station 88 .

The annular conveying module 81 can move each jig carrier 82 to each station for processing respectively, and realize braking and locking of the jig carrier 82 through the positioning and locking assembly 83 . After the annular conveying module 81 of the station circulation mechanism 8 completes the station rotation switch to the jig carrier 82, the positioning locking assembly 83 can lock and position the jig carrier 82 to prevent the jig carrier 82 from Shaking occurs in the process of leveling, welding or retrieving the tabs, thereby improving the welding accuracy of the lithium battery.

As shown in Figure 1, a cell conveyor belt 2 is provided above the circular conveying module 81, and the cell conveyor belt 2 can load and transport the cells to be welded to the circuit board, and the cell conveyor belt 2 A cell gripping mechanism 3 is provided between the cell feeding station 85, and the cell gripping mechanism 3 can grip the cells on the cell conveyor belt 2 to the position below the cell feeding station 85. On the jig carrier plate 82.

A positioning material shifting mechanism 7 is provided between the circuit board positioning mechanism 6 and the tab leveling station 84, and the positioning material shifting mechanism 7 can place the positioned circuit board on the tab leveling station 84. on the tool carrier plate 82, and level and align the cell tabs of the lower fixture carrier plate 82 through the tab leveling station 84;

When the jig carrier plate 82 that has finished leveling and aligning the tabs of the battery cell moves to the tab welding station 86, the tab welding station 86 can position the tabs of the battery cell and the nickel sheet of the circuit board. , so that the laser welding device 9 can weld it.

The welding seam detection station 87 can carry out the welding seam inspection on the battery cells that have completed the tab welding, and when the detection is qualified, the circular conveying module 81 can transport the battery cells on the jig carrier plate 82 to the battery cells Carry out blanking on blanking station 88.

The working process of this intelligent welding equipment is as follows: the battery conveyor belt 2 can load and transport the lithium battery cells to be welded on the circuit board, and the battery cells on the battery conveyor belt 2 can be clamped by the battery clamping mechanism 3 On the jig carrier plate 82 of the cell blanking station 88 on the station circulation mechanism 8, then the station circulation mechanism 8 drives the jig carrier plate 82 equipped with lithium battery cells to perform circular rotation, so that the The jig carrier plate 82 is transferred to the lug leveling station 84. Since the circuit board tray module 4 is equipped with a circuit board to be welded with the battery cell of the lithium battery, the feeding manipulator mechanism 5 can place the circuit board tray module The circuit board on 4 is placed on the circuit board positioning mechanism 6 to realize position positioning, and then the positioned circuit board is placed on the jig carrier plate 82 on the tab leveling station 84 through the positioning material transfer mechanism 7, and the tab is adjusted. The flat station 84 can level and align the battery lugs of the jig carrier plate 82, and then the station circulation mechanism 8 can move the jig carrier plate 82 to the tab welding station 86, and the tab welding station 86 The battery tab and the nickel sheet of the circuit board can be positioned so that the laser welding device 9 can weld it. After welding, the station circulation mechanism 8 can rotate the jig carrier plate 82 to switch to weld seam detection The welding seam inspection is carried out on the station 87. After the inspection is qualified, the station circulation mechanism 8 can rotate the jig carrier plate 82 to the cell blanking station 88, and the cell blanking station 88 can align the jig carrier plate The battery cells on the 82 are unlocked to facilitate blanking, and the entire welding process is automated, which saves the cumbersome manual operation and greatly improves the welding efficiency between the lithium battery and the circuit board.

As shown in Figures 10 to 12, the jig carrier plate 82 includes a carrier base 821, a cell clamping assembly 822, and a tab support block 823, and the left and right sides of the carrier base 821 are respectively provided with The cell positioning groove 8211 for positioning and placing lithium battery cells, the front end of the cell positioning groove 8211 is provided with a circuit board positioning groove 8212 for positioning and placing a circuit board, a cell positioning groove 8211 and a circuit board positioning groove 8212 The setting can stably place the lithium battery cell and the circuit board to be welded, and improve the stability of the two during transfer or welding.

A welding groove 8213 is provided between the battery positioning groove 8211 and the circuit board positioning groove 8212, and a tab supporting block 823 is provided in the welding groove 8213, and the battery tab to be welded and the nickel sheet of the circuit board are located Above the tab supporting block 823, due to the high temperature rise at the welding connection between the battery tab and the nickel sheet of the circuit board during the welding process, it is easy to be damaged, so the tab supporting block 823 is placed In the welding groove 8213, it can be easily replaced later, and the maintenance cost of the jig carrier plate 82 can be reduced.

The cell positioning groove 8211 is provided with a cell clamping assembly 822 to clamp and position the lithium battery cell in the cell positioning groove 8211, and the cell clamping assembly 822 includes a fixed side baffle 8221, side baffle telescopic part 8222 and rear baffle telescopic part 8223, the left side of the cell positioning groove 8211 is provided with a fixed side baffle 8221, and the right side of the cell positioning slot 8211 is provided with a side baffle telescopic part 8222, the rear side of the cell positioning groove 8211 is provided with a rear baffle telescopic part 8223, and the side baffle telescopic part 8222 and the rear baffle telescopic part 8223 can be placed in the cell positioning groove 8211 under the action of elastic force. The battery cells are clamped.

The telescopic part 8222 of the side baffle includes a movable side baffle 82221, a first elastic module 82222 and a side push plate 82223. 82221 is located in the first chute 8214, and the bottom of the movable side baffle 82221 is provided with a first elastic module 82222 that pushes it to protrude from the first chute 8214 and abut against the side end of the battery cell. 82223 is connected to the first elastic module 82222, and the side end of the side push plate 82223 is provided with a transition arc structure 82224;

The tailgate telescopic part 8223 includes a movable tailgate 82231, a second elastic module 82232 and a push-pull plate 82233, and a second chute 8215 is provided on the rear side of the cell positioning groove 8211, and the movable tailgate 82231 Located in the second chute 8215, the bottom of the movable rear baffle 82231 is provided with a second elastic module 82232 that pushes it to protrude from the second chute 8215 and abut against the rear end of the battery cell, and the push-pull plate 82233 and The second elastic module 82232 is connected, and the front end of the push-pull plate 82233 is provided with a top connecting block 82234 .

As shown in Figure 14, the cell loading station 85 has the same structure as the cell blanking station 88, both of which include a rear baffle pushing cylinder 851, a lateral pushing block 852, a side baffle pushing cylinder 853, a jacking block 854 and roller 855, the movable end of the rear baffle push cylinder 851 is connected with the lateral push block 852, the movable end of the side baffle push cylinder 853 is connected with the jacking block 854, and the top of the jacking block 854 is provided There are rollers 855. When the jig carrier plate 82 rotates to the cell loading station 85 or the cell blanking station 88, the rear baffle pushes the cylinder 851 to push the jacking block 82234 to move backward through the horizontal push block 852, so that The side baffle pushes the cylinder 853 to push the lifting block 854 to lift, so that the roller 855 pushes the transition arc structure 82224 of the side push plate 82223 to move laterally, so as to overcome the first elastic module 82222 and the second elastic module respectively. The elastic force of the module 82232 separates the movable side baffle 82221 and the movable rear baffle 82231 from the electric core respectively. Only when the jig carrier plate 82 is rotated and switched to the cell loading station 85 or the cell unloading station 88 can the lithium battery cells be unlocked, so that the locking and unlocking operations of the jig carrier plate 82 are set separately, not only The design structure of the jig carrier 82 is simplified, the equipment development cost is reduced, and the operating load of the circular conveying module 81 during the circular conveying process can be reduced, thereby reducing the power consumption cost.

As shown in Figure 3, further, the endless conveying module 81 includes a drive motor (not shown), a driving gear 811, a driven gear 812, an endless conveyor belt 813, an endless guide rail 814 and a moving slide 815, the The drive motor is connected to the bottom of the driving gear 811, and the driving gear 811 is meshed with the driven gear 812 through the endless conveyor belt 813. The outer side of the endless conveyor belt 813 is provided with an annular guide rail 814, and the bottom of the moving slide 815 is provided with The guide pulley 816 that is slidably connected to the side wall of the annular guide rail 814, and the moving slide 815 is connected with the endless conveyor belt 813 through a splint, the jig carrier 82 is arranged on the moving slide 815, and the driving motor can drive The driving gear 811 rotates to drive the jig carrier 82 to move circularly on the circular guide rail 814 through the endless conveyor belt 813 , thereby realizing the position switching of the jig carrier 82 . The driving motor can drive the driving gear 811 to rotate, and the driving gear 811 is connected with the driven gear 812 through the endless conveyor belt 813, and then drives the moving slide 815 connected with the endless conveyor belt 813 to slide in the annular guide rail 814.

As shown in Figure 3, positioning and locking components 83 are respectively provided around the circular conveying module 81, and the positioning and locking components 83 include a bearing seat 831, a rotary shaft 832, a locking cylinder 833, a rotating pull rod 834, a locking Rod 835 and brake wheel 836, the rotary shaft 832 is movable on the side end of the ring guide rail 814 through the bearing seat 831, the locking cylinder 833 is arranged under the ring guide rail 814, and the locking cylinder 833 is rotated The pull rod 834 is connected with the rotary shaft 832, the rotary shaft 832 is provided with a locking bar 835, the outer wall of the moving slide 815 is provided with a positioning arc 8150, and the top of the locking bar 835 is provided with a positioning arc 8150. Equipped with the abutting brake wheel 836, when the jig carrier 82 moves to the preset position under the action of the circular conveying module 81, the locking cylinder 833 drives the rotary shaft 832 to rotate by rotating the pull rod 834, By swinging the locking rod 835 at an angle, the braking wheel 836 is closely attached to the positioning arc 8150 of the moving slide 815 , thereby realizing the positioning and braking of the jig carrier 82 . When the circular conveying module 81 completes the station rotation switch on the jig carrier plate 82, the positioning locking component 83 can lock and position the jig carrier plate 82 to prevent the jig carrier plate 82 from being flattened on the lug, Shaking occurs during welding or retrieving, thereby improving the welding accuracy of lithium batteries.

As shown in Figures 4 and 6, further, the circuit board tray module 4 includes a reserve tray assembly 41, a retrieving tray assembly 42, a tray adjustment assembly 43 and a tray positioning assembly 44, the reserve tray assembly 41 and the tray assembly 42 are arranged side by side.

The storage tray assembly 41 has the same structure as the retrieving tray assembly 42, and the retrieving tray assembly 42 includes a tray warehouse 421, a screw lifting mechanism 422, a lifting plate 423, a connecting rod 424, a tray carrier plate 425 and a circuit board Tray 426, the screw mandrel lifting mechanism 422 is arranged below the material tray warehouse 421, and the screw mandrel lifting mechanism 422 is connected with the lifting plate 423 to drive it to realize up and down movement, and the top of the lifting plate 423 is connected with the connecting rod 424 The tray carrier 425 is connected, and the tray carrier 425 is located in the tray warehouse 421, and a plurality of circuit board trays 426 are stacked on the top of the tray carrier 425, and several circuit board trays 426 are provided on the circuit board tray 426 for placing and waiting The circuit board placement slot 4260 for feeding circuit boards, the feeding manipulator mechanism 5 can place the circuit board tray 426 loaded with circuit boards on the reserve tray assembly 41 into the take-up tray assembly 42 . The structure of storage tray assembly 41 is identical to the structure of taking tray assembly 42, but the effect between the two is different, and the effect of storage tray assembly 41 is to store the circuit board tray 426 that is full of circuit boards. After the circuit boards on the circuit board tray 426 in the tray assembly 42 are emptied, the circuit board tray 426 in the reserve tray assembly 41 is clamped to the take-up tray assembly 42 by the feeding manipulator mechanism 5 .

The tray adjustment assembly 43 includes a fixed frame 431, a horizontal adjustment cylinder 432, and a clamping plate 433. An opening is provided at a corner position of the tray bin 421 of the tray assembly 42, and the fixed frame 431 is located at the side end of the opening. , the top of the fixed frame 431 is provided with a horizontal adjustment cylinder 432, the movable end of the horizontal adjustment cylinder 432 is connected with the clamping plate 433, and the side of the clamping plate 433 close to the circuit board tray 426 is provided with a clamping mouth 4330, when the When the above-mentioned feeding manipulator mechanism 5 places the circuit board tray 426 loaded with circuit boards on the reserve tray assembly 41 on the take-up tray assembly 42, the horizontal adjustment cylinder 432 can push the clamping plate 433 and the uppermost circuit board tray. 426 to abut against each other so as to adjust the position of the circuit board tray 426 in the center and prevent the circuit board tray 426 from being dislocated during the material shifting process, thereby affecting the normal feeding of the feeding manipulator mechanism 5 .

The tray positioning assembly 44 is located on the left and right sides of the tray assembly 42, and the tray positioning assembly 44 includes a telescopic cylinder 441, a connecting arm 442, and a disk insertion block 443, and the telescopic cylinder 441 is arranged on the tray warehouse 421. The movable end of the telescopic cylinder 441 is connected with the disk insertion block 443 through the connecting arm 442, the disk insertion block 443 is located at the side end of the circuit board tray 426 of the retrieving tray assembly 42, and the side end of the circuit board tray 426 is provided with The slot 4261 adapted to the inserting block 443, when the loading manipulator mechanism 5 picks up the circuit board on the retrieving tray assembly 42, the inserting block 443 of the tray positioning assembly 44 and the uppermost circuit The slot 4261 of the board is plugged in to clamp the uppermost circuit board tray 426 on both sides, preventing the feeding manipulator mechanism 5 from contacting the circuit board tray 426 during the retrieving process, causing it to shift.

As shown in Figures 4 and 5, further, the feeding manipulator mechanism 5 includes a support frame 51, a multi-axis mechanical arm 52, a mounting plate 53, a suction tray assembly 54 and a clip circuit board assembly 55, the support frame 51 is located on the frame 1 at the side end of the circuit board material tray module 4, the support frame 51 is provided with a multi-axis mechanical arm 52, the multi-axis mechanical arm 52 is connected with the mounting plate 53, the suction cup assembly and the clip The circuit board assembly 55 is respectively arranged on the mounting plate 53, and the suction cup assembly can absorb the circuit board tray 426 loaded with circuit boards on the storage tray assembly 41 into the take-up tray assembly 42, and the clip circuit board assembly 55 can hold the The circuit board on the uppermost circuit board tray 426 in the retrieving tray assembly 42 is clipped into the circuit board positioning mechanism 6 for loading and positioning.

The suction pan assembly 54 includes a suction pan cylinder 541, a suction nozzle bracket 542 and a plurality of first vacuum suction nozzles 543, the suction pan cylinder 541 is arranged on the mounting plate 53, and the activity of the suction pan cylinder 541 The end is connected with the nozzle bracket 542, and a plurality of the first vacuum nozzles 543 are respectively arranged on the nozzle bracket 542, and the first vacuum nozzles 543 can absorb the circuit board on the storage tray assembly 41 through negative pressure adsorption. The tray 426 moves onto the tray carrier 425 within the reclaimer pan assembly 42 .

The clamping circuit board assembly 55 includes a first lift cylinder 551, a first lift seat 552, a first magnetic block 553, a clamp finger cylinder 554 and two clamp finger blocks 555, and the first lift cylinder 551 is arranged on the mounting plate 53, the movable end of the first lifting cylinder 551 is connected to the first lifting seat 552, and the two ends of the bottom of the first lifting seat 552 are respectively provided with first magnetic blocks that are magnetically connected to the nickel sheet of the circuit board 553, the clamping finger cylinder 554 is arranged on the side end of the mounting plate 53 of the first lifting seat 552, and the two movable ends of the clamping finger cylinder 554 are respectively connected with the clamping finger block 555, and the clamping finger block 555 can be Under the action of the clamping finger cylinder 554, move closer or separate from each other to stably clamp the end of the circuit board. The first magnetic block 553 of the clamping circuit board assembly 55 can magnetically attract the nickel sheet of the circuit board through the magnetic force. The clamping finger block 555 can clamp the head of the circuit board by clamping force, and the circuit board can be clamped in two ways at the same time, which can improve the clamping stability of the circuit board.

As shown in Figures 7 and 8, further, the circuit board positioning mechanism 6 includes a U-shaped frame 61, a pulley transmission assembly 62, an overturning shaft 63, an overturning seat 64, an extending support assembly 65, and a two-axis micro-movement Assemblies 66 and optical fiber sensors 67, the top of the U-shaped frame 61 is provided with an overturning shaft 63, the overturning seat 64 is located on the overturning shaft 63, and the pulley drive assembly 62 is connected with the side ends of the overturning shaft 63 to drive the The overturning seat 64 realizes the adjustment of the overturning angle, and the top edge of the overturning seat 64 is provided with a horizontal placement area 642 for positioning and placing the circuit board, and the left and right sides of the horizontal placement area 642 are provided with optical fibers for detecting whether the circuit board is positioned accurately. Sensor 67, one side of the horizontal placement area 642 is provided with a protruding support assembly 65 to position and support the front end of the circuit board, and the other side of the horizontal placement area 642 is provided with biaxial micro-movement Component 66, to compact and slightly move the rear end of the circuit board, thereby adjusting the placement position of the circuit board;

The extending supporting assembly 65 includes extending cylinder 651, connecting plate 652 and supporting base plate 653, and the extending cylinder 651 is arranged at the bottom of the turning seat 64, and the movable end of the extending cylinder 651 is connected with the connecting plate 652. The supporting bottom plate 653 is connected, and the side wall of the supporting bottom plate 653 abuts against the nickel sheet of the circuit board;

The two-axis micro-movement assembly 66 includes an X-axis pushing cylinder 661, an X-axis moving frame 662, a Y-axis pushing cylinder 663, a Y-axis moving seat 664, a tilting block 665, a positioning frame 666, and a lifting and lowering seat 667; The X-axis push cylinder 661 is located at the bottom of the turning seat 64, and the movable end of the X-axis pushing cylinder 661 is connected with the X-axis moving frame 662. The left and right sides of the turning seat 64 are provided with a third chute 641, and the X The axis pushes the cylinder 661 to push the X-axis moving frame 662 to realize the X-axis movement in the third chute 641; the top of the X-axis moving frame 662 is provided with a Y-axis pushing cylinder 663, and the movable end of the Y-axis pushing cylinder 663 is connected to The Y-axis moving seat 664 is connected, and the front end of the Y-axis moving seat 664 is provided with a top slanting block 665, and the X-axis moving frame 662 below the top slanting block 665 is provided with a positioning frame 666, and the positioning frame 666 The middle part is provided with an avoidance groove 6661, and the left and right sides of the positioning frame 666 are provided with guide columns 6662 arranged downwards, and the lifting pressure seat 667 includes a horizontal section and a vertical section perpendicular to the horizontal section, so The horizontal section of the lifting pressure seat 667 is sleeved and connected with the guide column 6662, and the side end of the horizontal section of the lifting pressure seat 667 near the horizontal placement area 642 is provided with a step 6671 that is pressed against the circuit board. The vertical section of the lifting pressure seat 667 is located in the avoidance groove 6661, and the top of the vertical section of the lifting pressure seat 667 is provided with a follower wheel 6672, and the follower wheel 6672 is located on the plane part 6651 at the top of the top inclined block 665, The side end of the plane part 6651 is provided with an inclined part 6652; the Y-axis pushing cylinder 663 drives the tilting block 665 to move sideways in the Y-axis direction, so that the follower wheel 6672 on the top of the lift seat 667 slides to the tilting position. on the inclined part 6652 of the block 665, thereby realizing the lifting adjustment of the lifting pressure seat 667, and promoting the lifting height of the lifting pressure seat 667 to adapt to the thickness of the circuit board, and then the X-axis pushing cylinder 661 can pass through the X The axis moving frame 662 drives the lifting and lowering seat 667 to move above the circuit board, and then the Y-axis pushes the cylinder 663 to drive the lifting and lowering seat 667 to descend, so that the step 6671 is pressed on the surface of the circuit board, and finally passes through the X-axis Push the expansion and contraction of the cylinder 661 to realize the position adjustment of the circuit board, so as to meet the positioning and placement requirements of the circuit board and improve the welding accuracy between it and the lithium battery cell.

As shown in Figure 9, the positioning and shifting mechanism 7 includes a first column 71, a first linear movement module 72, a first lifting movement module 73, a fixed plate 74, a second lifting cylinder 75, a second lifting seat 76 and the second magnetic block 77, the first column 71 is arranged on the frame 1, the top of the first column 71 is provided with a first linear movement module 72, and the first linear movement module 72 The movable end of the first lifting mobile module 73 is connected, the movable end of the first lifting mobile module 73 is connected with the fixed plate 74, the second lifting cylinder 75 is arranged on the fixed plate 74, and the second lifting The movable end of the cylinder 75 is connected with the second lifting base 76, and the second lifting base 76 bottom is provided with a second magnetic block 77 for magnetically absorbing the nickel sheet of the circuit board, through the first linear movement module 72 and The biaxial movement of the first lifting and moving module 73 can position the circuit board positioned in the circuit board positioning mechanism 6 and transport it to the jig carrier plate 82 on the tab leveling station 84, specifically to place the circuit board on the lug leveling station 84. The board is placed in the circuit board positioning groove 8212 on the jig carrier plate 82 .

As shown in Figure 13, further, the lug leveling station 84 includes a support plate 841, a third lifting cylinder 842, a third lifting seat 843, a third magnetic block 844, a fourth lifting cylinder 845, an L-shaped frame 846 and leveling pressing block 847, the support plate 841 is arranged on the frame 1, the third lift cylinder 842 is arranged on the back of the support plate 841, and the movable end of the third lift cylinder 842 is provided with a third Lifting seat 843, the side wall of the third lifting seat 843 is provided with a third magnetic block 844, the third magnetic block 844 is located directly below the lug supporting block 823, the third lifting cylinder 842 can drive the third magnetic attraction block 844 to move up and down, so as to magnetically position the nickel sheet of the circuit board on the lug supporting block 823, and the fourth lifting cylinder 845 is arranged on the front of the support plate 841, so that The movable end of the fourth lifting cylinder 845 is connected to the L-shaped frame 846, and the L-shaped frame 846 is provided with a leveling pressing block 847. After the nickel sheet of the circuit board is magnetically attracted by the third magnetic block 844, The fourth lifting cylinder 845 drives the leveling pressing block 847 to press down, so as to press down and level the positions of the tabs of the lithium battery cell and the nickel sheet of the circuit board.

As shown in Figure 15 and, Figure 16 and Figure 19, further, the laser welding device 9 is a double-head laser spot welding machine, the laser welding device 9 is arranged above the tab welding station 86, and the tab The welding station 86 includes a second column 861, a fifth lifting cylinder 862, a fourth lifting seat 863, a second slide rail 864, a second sliding block 865, a second spring member 866, a tab positioning seat 867 and a tab pressing block 868, the second column 861 is set on the frame 1, the second lift cylinder 75 is set on the top of the second column 861, the movable end of the fifth lift cylinder 862 is connected with the fourth lift seat 863, two The second slide rails 864 are respectively arranged on the left and right sides of the fourth lifting seat 863, and the second slide rails 864 are connected with the tab positioning seat 867 through the second slider 865, and the tab positioning seat 867 is provided with There is a tab pressing block 868, and the tab pressing block 868 is provided with an avoidance hole 8681 for the laser welding device 9 to weld the battery tab and the nickel sheet of the circuit board. The top of the tab positioning seat 867 is in contact with the second There is a second spring member 866 between the tops of the four lifting seats 863. The fifth lifting cylinder 862 can drive the lug pressing block 868 to be crimped on the tab of the battery cell to prevent the tab of the battery cell from being damaged during the welding process. Then the laser welding device 9 can emit a laser passing through the avoidance hole 8681 to weld and fix the tabs of the battery core and the nickel sheet of the circuit board. The batteries can be welded at the same time, and the welding efficiency is high.

As shown in Figure 12, further, the first elastic module 82222 has the same structure as the second elastic module 82232, and the first elastic module 82222 includes a fixing base 8241, a first sliding rail 8242, a first sliding The block 8243, the first spring member 8244 and the connecting member 8245, the fixed seat 8241 is arranged on the back of the carrier base 821, the first sliding rail 8242 is arranged on the fixed seat 8241, and the first sliding block 8243 can be slidably arranged On the first sliding rail 8242, the first sliding block 8243 is connected with the connecting piece 8245, and the top of the connecting piece 8245 passes through the first slide groove 8214 and is connected with the movable side baffle 82221, and the connecting piece 8245 The front end is connected with the side push plate 82223, the side end of the fixed seat 8241 is provided with a limit plate 82411, and a first spring member 8244 is provided between the limit plate 82411 and the connecting piece 8245, and the first spring member 8244 Under the action of the elastic force, the movable side baffle 82221 connected with the connecting piece 8245 can be pushed to abut against the side end of the battery cell, thereby realizing automatic clamping of the lithium battery cell.

As shown in Figure 17, further, the weld detection station 87 includes a gantry frame 871 and four laser sensors 872 located on the top of the gantry frame 871, and the four laser sensors 872 can be respectively opposed to the fixture carrier plate. The four welds of the two batteries on 82 are welded by laser inspection. After the inspection is qualified, the station circulation mechanism 8 can rotate the jig carrier plate 82 to the battery blanking station 88, and the battery blanking station 88 can unlock the electric core on the jig carrier plate 82, which is convenient for blanking.

As shown in Figure 18, further, the cell clamping mechanism 3 includes a third column 31, a second linear movement module 32, a second lift movement module 33, a suction nozzle fixing plate 34, and several second vacuum suction modules. Nozzle 35, the third column 31 is arranged on the frame 1, the second linear movement module 32 is arranged on the top of the third column 31, the movable end of the second linear movement module 32 is connected with the second lifting movement Module 33 is connected, and the movable end of described second lifting mobile module 33 is connected with suction nozzle fixed plate 34, and the left and right sides of described suction nozzle fixed plate 34 are provided with a plurality of second vacuum suction nozzles 35 respectively, so that all The two batteries on the battery conveyor belt 2 are simultaneously clamped into the two battery positioning grooves 8211 of the jig carrier plate 82 on the battery feeding station 85. It should be noted that the battery clamping mechanism 3 Before the cells are placed, the cell loading station 85 first drives and unlocks the side baffle telescopic parts 8222 and the rear baffle telescopic parts 8223 on the jig carrier 82 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (10)

1. An intelligent welding device for a lithium battery and a circuit board, characterized in that it includes a frame, a cell conveyor belt, a cell clamping mechanism, a circuit board tray module, a feeding manipulator mechanism, a circuit board positioning mechanism, Positioning material shifting mechanism, station circulation mechanism and laser welding device; The two groups of circuit board tray modules are respectively arranged on the left and right sides of the front end of the frame, and the circuit board tray modules are equipped with circuit boards to be welded with the batteries of lithium batteries; A circuit board positioning mechanism is provided at the rear side of the circuit board tray module, and a feeding manipulator mechanism is respectively provided above the circuit board tray module, and the feeding manipulator mechanism can place the circuit board tray module on the The circuit board is placed on the circuit board positioning mechanism to achieve position positioning; The middle part of the frame is provided with a station circulation mechanism; The station circulation mechanism includes an annular conveying module, a jig carrier, a positioning and locking assembly, a tab leveling station, a cell loading station, a tab welding station, a weld detection station, and an electrical station. Core blanking station; The circular conveying module is provided with ten fixture carriers for positioning and placing lithium battery cells and circuit boards; four sets of lug leveling tools are arranged on the frame at the front end of the circular conveying module. bit; A set of cell loading stations and two sets of tab welding stations are arranged side by side on the frame at the rear end of the circular conveying module; A welding seam detection station is provided on the frame at the right end of the circular conveying module, and a cell blanking station is provided on the frame at the left end of the circular conveying module; The annular conveying module can move each jig carrier to each station for processing separately, and realize braking and locking of the jig carrier through the positioning and locking assembly; A battery conveyor belt is provided above the circular conveying module, and the battery conveyor belt can load and transport the battery cells to be welded to the circuit board; A battery clamping mechanism is provided between the battery conveyor belt and the battery feeding station, and the battery clamping mechanism can clamp the batteries on the battery conveyor belt to the bottom of the battery feeding station on the fixture carrier plate; A positioning material transfer mechanism is provided between the circuit board positioning mechanism and the tab leveling station, and the positioning material transfer mechanism can place the positioned circuit board on the jig carrier plate on the tab leveling station, And use the tab leveling station to level and align the cell tabs of the lower jig carrier plate; When the jig carrier with the leveling and alignment of the battery tabs is moved to the tab welding station, the tab welding station can position the battery tabs and the nickel sheet of the circuit board, so that Said laser welding device welds it; The welding seam detection station can carry out the welding seam inspection on the battery cell which has completed the tab welding, and when the detection is qualified, the circular conveying module can transport the battery cell on the jig carrier plate to the battery cutting worker Carry out blanking on the position; Wherein, the fixture carrier plate includes a carrier plate base, a battery cell clamping assembly, and a tab support block, and the left and right sides of the carrier plate base are respectively provided with cell positioning slots for positioning and placing lithium battery cells. , the front end of the cell positioning groove is provided with a circuit board positioning groove for positioning and placing a circuit board; A welding groove is provided between the positioning groove of the battery core and the positioning groove of the circuit board, and a tab supporting block is provided in the welding groove, and the tab of the battery core to be welded and the nickel sheet of the circuit board are located on the tab holding block. above the block; The battery cell positioning groove is provided with a battery cell clamping assembly to clamp and position the lithium battery cell in the battery cell positioning groove; The cell clamping assembly includes a fixed side baffle, a side baffle telescopic piece and a rear baffle telescopic piece, and the left side of the cell positioning groove is provided with a fixed side baffle; The right side of the cell positioning slot is provided with a side baffle telescopic piece, and the rear side of the cell positioning slot is provided with a back baffle telescopic piece, and the side baffle telescopic piece and the back baffle telescopic piece can be elastically Under the action of force, the battery core in the battery positioning groove is clamped; The telescopic part of the side baffle includes a movable side baffle, a first elastic module and a side push plate; The right side of the cell positioning groove is provided with a first chute, the movable side baffle is located in the first chute, and the bottom of the movable side baffle is provided to push it out of the first chute and connect with the cell. The first elastic module whose side end abuts, the side push plate is connected to the first elastic module, and the side end of the side push plate is provided with a transition arc structure; The telescopic part of the tailgate includes a movable tailgate, a second elastic module and a push-pull plate; There is a second chute on the rear side of the cell positioning groove, the movable rear baffle is located in the second chute, and the bottom of the movable rear baffle is provided to push it out of the second chute and connect with the battery cell. The second elastic module whose rear end abuts, the push-pull plate is connected to the second elastic module, and the front end of the push-pull plate is provided with a top block; The cell loading station has the same structure as the cell blanking station, both of which include rear baffle push cylinders, lateral push blocks, side baffle push cylinders, jacking blocks and rollers; The movable end of the rear baffle push cylinder is connected with the horizontal push block, the movable end of the side baffle push cylinder is connected with the jacking block, and the top of the jacking block is provided with rollers; When the jig carrier rotates to the cell loading station or cell blanking station, the rear baffle pushes the cylinder to move the jacking block backward through the horizontal push block, and the side baffle pushes the cylinder Push the jacking block to lift, so that the roller pushes the transitional arc structure of the side push plate to move laterally, so as to overcome the elastic force of the first elastic module and the second elastic module respectively, and make the movable side stop The board and the movable rear baffle are separated from the battery core respectively. 2. The intelligent welding equipment for lithium batteries and circuit boards according to claim 1, characterized in that: the circular conveying module includes a driving motor, a driving gear, a driven gear, an endless conveyor belt, an annular guide rail and a moving slide , the driving motor is connected to the bottom of the driving gear, and the driving gear is meshed with the driven gear through an endless conveyor belt. The guide pulleys are slidably connected to the wall, and the moving slide is connected to the endless conveyor belt through splints. The belt-driven fixture carrier plate realizes circular movement on the circular guide rail, thereby realizing the position switching of the fixture carrier plate; Positioning and locking components are respectively provided around the circular conveying module, and the positioning and locking components include a bearing seat, a rotating shaft, a locking cylinder, a rotating pull rod, a locking rod and a brake wheel, and the rotating shaft passes through the bearing seat. The activity is arranged at the side end of the circular guide rail, the locking cylinder is arranged under the circular guide rail, and the locking cylinder is connected with the rotary shaft through the rotating pull rod, the rotary shaft is provided with a locking rod, and the moving slide There is a positioning arc on the outer wall of the locking rod, and a brake wheel is provided on the top of the locking rod to fit and abut against the positioning arc. When the jig carrier moves to the preset position At this time, the locking cylinder drives the rotary shaft to rotate by rotating the pull rod to swing the angle of the locking rod, so that the brake wheel is close to the positioning arc of the moving slide, thereby realizing the adjustment of the jig. The positioning brake of the carrier plate. 3. The intelligent welding equipment for lithium batteries and circuit boards according to claim 1, wherein the circuit board tray module includes a reserve tray assembly, a tray assembly, a tray adjustment assembly, and a tray positioning assembly, The storage tray assembly and the retrieving tray assembly are arranged side by side; The storage tray assembly has the same structure as the retrieving tray assembly, and the retrieving tray assembly includes a tray warehouse, a screw lifting mechanism, a lifting plate, a connecting rod, a tray carrier plate and a circuit board tray, and the screw lifting mechanism It is located under the tray warehouse, and the screw lifting mechanism is connected with the lifting plate to drive it to move up and down. The top of the lifting plate is connected to the tray carrier through a connecting rod, and the tray carrier is located in the tray bin , the top of the tray carrier is stacked with a number of circuit board trays, the circuit board tray is provided with a number of circuit board placement slots for placing circuit boards to be loaded, and the feeding manipulator mechanism can store the tray assembly The circuit board tray loaded with circuit boards is placed in the take-up tray assembly; The tray adjustment assembly includes a fixed frame, a horizontal adjustment cylinder, and a clamping plate. An opening is provided at a corner position of the tray warehouse of the retrieving tray assembly, and the fixed frame is arranged at the side end of the opening. Horizontal adjustment cylinder, the movable end of the horizontal adjustment cylinder is connected to the clamping plate, and the side of the clamping plate close to the circuit board tray is provided with a clamping opening. When the circuit board tray is placed on the retrieving tray assembly, the horizontal adjustment cylinder can push the clamping plate to abut against the uppermost circuit board tray, so as to centrally adjust the position of the circuit board tray; The tray positioning assembly is located on the left and right sides of the retrieving tray assembly. The tray positioning assembly includes a telescopic cylinder, a connecting arm and a disk insertion block. The connecting arm is connected with the inserting plate block, and the inserting plate block is located at the side end of the circuit board tray of the retrieving tray assembly, and the side end of the circuit board tray is provided with a slot adapted to the inserting plate block. When the manipulator mechanism picks up the circuit boards on the retrieving tray assembly, the inserting block of the tray positioning assembly is plugged into the slot of the uppermost circuit board to clamp the uppermost circuit board tray on both sides. . 4. The intelligent welding equipment for lithium batteries and circuit boards according to claim 3, characterized in that: the feeding manipulator mechanism includes a support frame, a multi-axis robot arm, a mounting plate, a suction tray assembly and a clamping circuit board assembly , the support frame is set on the frame at the side end of the circuit board tray module, the support frame is provided with a multi-axis mechanical arm, the multi-axis mechanical arm is connected with the mounting plate, the suction cup assembly and the clip circuit board assembly They are respectively arranged on the mounting plate, and the suction cup assembly can absorb the circuit board tray loaded with circuit boards on the storage tray assembly into the take-up tray assembly, and the clip circuit board assembly can hold the uppermost circuit board in the take-up tray assembly The circuit board on the tray is clamped into the circuit board positioning mechanism for loading and positioning; The suction pan assembly includes a suction pan cylinder, a suction nozzle bracket and a number of first vacuum suction nozzles, the suction pan cylinder is arranged on a mounting plate, the movable end of the suction pan cylinder is connected to the suction nozzle bracket, A plurality of the first vacuum nozzles are respectively arranged on the nozzle bracket, and the first vacuum nozzles can move the circuit board tray on the storage tray assembly to the tray carrier in the take-up tray assembly through negative pressure adsorption superior; The clamping circuit board assembly includes a first lifting cylinder, a first lifting seat, a first magnetic block, a clamping finger cylinder and two clamping finger blocks, the first lifting cylinder is arranged on the mounting plate, and the first lifting The movable end of the air cylinder is connected to the first lifting seat, and the two ends of the bottom of the first lifting seat are respectively equipped with first magnetic blocks connected with the nickel sheet of the circuit board, and the finger-clamping cylinder is arranged on the first lifting seat. The side end of the mounting plate of the seat, and the two movable ends of the finger cylinder are respectively connected with the finger block, and the finger block can be moved closer to or separated from each other under the action of the finger cylinder to align the end of the circuit board. For stable gripping. 5. The intelligent welding equipment for lithium batteries and circuit boards according to claim 1, characterized in that: the circuit board positioning mechanism includes a U-shaped frame, a pulley transmission assembly, a turning shaft, a turning seat, and a protruding support assembly , a two-axis micro-movement assembly and an optical fiber sensor, the top of the U-shaped frame is provided with an overturning shaft, the overturning seat is arranged on the overturning shaft, and the pulley transmission assembly is connected to the side end of the overturning shaft to drive the overturning seat To realize the adjustment of the flip angle, the top edge of the flip seat is provided with a horizontal placement area for positioning and placing the circuit board, and the left and right sides of the horizontal placement area are provided with optical fiber sensors for detecting whether the positioning of the circuit board is accurate, and the horizontal placement area One side of the horizontal placement area is provided with a protruding support assembly to position and support the front end of the circuit board, and the other side of the horizontal placement area is provided with a two-axis micro-movement assembly to position the rear end of the circuit board. compaction nudge; The extending support assembly includes an extending cylinder, a connecting plate and a supporting base plate, the extending cylinder is arranged at the bottom of the turning seat, the movable end of the extending cylinder is connected with the supporting base plate through a connecting plate, and the supporting The side wall of the bottom plate abuts against the nickel sheet of the circuit board; The two-axis micro-movement assembly includes an X-axis pushing cylinder, an X-axis moving frame, a Y-axis pushing cylinder, a Y-axis moving seat, a tilting block, a positioning frame, and a lifting and lowering seat; the X-axis pushing cylinder is arranged on the turning seat At the bottom, the movable end of the X-axis pushing cylinder is connected with the X-axis moving frame, and the left and right sides of the turning seat are provided with a third chute, and the X-axis pushing cylinder can push the X-axis moving frame in the third chute The X-axis movement is realized inside; the top of the X-axis moving frame is provided with a Y-axis pushing cylinder, and the movable end of the Y-axis pushing cylinder is connected with the Y-axis moving seat, and the front end of the Y-axis moving seat is provided with a top slanting block, A positioning frame is arranged on the X-axis mobile frame located below the top slanting block, and the middle part of the positioning frame is provided with an avoidance groove. The pressure seat includes a horizontal section and a vertical section perpendicular to the horizontal section, the horizontal section of the lifting pressure seat is sleeved and connected with the guide column, and the horizontal section of the lifting pressure seat is close to the side of the horizontal placement area The end is provided with a step that is pressed with the circuit board, the vertical section of the lifting pressure seat is located in the avoidance groove, and the top of the vertical section of the lifting pressure seat is provided with a follower wheel, and the follower wheel is located On the plane part at the top of the block, the side end of the plane part is provided with an inclined part; the Y-axis pushes the cylinder to drive the top inclined block to move sideways in the Y-axis direction, so that the follower wheel on the top of the lifting and lowering seat slides to the top. On the inclined part of the inclined block, the lifting adjustment of the lifting pressure seat is realized, and the lifting height of the lifting pressure seat is promoted to adapt to the thickness of the circuit board, and then the X-axis pushing cylinder can be driven by the X-axis moving frame The lifting and lowering seat moves to the top of the circuit board, and then the Y-axis pushes the cylinder to drive the lifting and lowering seat to descend, so that the steps are pressed on the surface of the circuit board, and finally the X-axis pushes the expansion and contraction of the cylinder to realize the adjustment. Position adjustment of the circuit board; The positioning and material shifting mechanism includes a first column, a first linear movement module, a first lifting movement module, a fixed plate, a second lifting cylinder, a second lifting seat and a second magnetic block. The first column Set on the frame, the top of the first column is provided with a first linear movement module, the movable end of the first linear movement module is connected with the first lifting movement module, and the first lifting movement module The movable end of the group is connected to the fixed plate, the second lifting cylinder is arranged on the fixed plate, the movable end of the second lifting cylinder is connected to the second lifting seat, and the bottom of the second lifting seat is provided with a magnetic adsorption circuit The second magnetic block of the plate nickel sheet can position and transport the circuit board positioned in the circuit board positioning mechanism to the pole through the biaxial movement of the first linear movement module and the first lifting movement module. On the jig carrier plate on the ear leveling station. 6. The intelligent welding equipment for lithium battery and circuit board according to claim 1, characterized in that: the lug leveling station includes a support plate, a third lifting cylinder, a third lifting seat, and a third magnetic block , the fourth lift cylinder, L-shaped frame and leveling press block, the support plate is arranged on the frame, the third lift cylinder is arranged on the back of the support plate, and the movable end of the third lift cylinder is provided with the first Three lifting seats, the side wall of the third lifting seat is provided with a third magnetic block, the third magnetic block is located directly below the lug supporting block, and the third lifting cylinder can drive the third The magnetic block moves up and down to magnetically locate the nickel sheet of the circuit board on the lug supporting block. The fourth lifting cylinder is arranged on the front of the support plate, and the movable end of the fourth lifting cylinder is connected to the The L-shaped frame is connected, and the L-shaped frame is provided with a leveling pressing block. When the nickel sheet of the circuit board is positioned and magnetically attracted by the third magnetic attraction block, the fourth lifting cylinder drives the leveling pressing block to press down. , to press down and level the position of the nickel sheet on the circuit board. 7. The intelligent welding equipment for lithium battery and circuit board according to claim 1, characterized in that: the laser welding device is a double-head laser spot welding machine, and the laser welding device is arranged above the tab welding station, The tab welding station includes a second column, a fifth lifting cylinder, a fourth lifting seat, a second slide rail, a second slider, a second spring member, a tab positioning seat, and a tab pressing block. The second column is arranged on the frame, the second lifting cylinder is arranged on the top of the second column, the movable end of the fifth lifting cylinder is connected with the fourth lifting seat, and the two second slide rails are respectively arranged on the fourth On the left and right sides of the lifting seat, the second slide rail is connected to the lug positioning seat through the second slider. The tab positioning seat is provided with a tab pressing block, and the tab pressing block is provided with The welding device is an avoidance hole for welding the tab of the battery cell and the nickel sheet of the circuit board. A second spring member is provided between the top of the tab positioning seat and the top of the fourth lifting seat, and the fifth lifting cylinder can drive the pole The ear pressure block is crimped on the tab of the battery to prevent the tab of the battery from shifting during the welding process, and then the laser welding device can emit a laser that passes through the avoidance hole to weld the pole of the battery The ear and the nickel sheet of the circuit board are welded and fixed. 8. The intelligent welding equipment for lithium battery and circuit board according to claim 1, characterized in that: the structure of the first elastic module is the same as that of the second elastic module, and the first elastic module includes a fixing seat , the first slide rail, the first slide block, the first spring element and the connecting piece, the fixed seat is arranged on the back of the carrier base, the first slide rail is arranged on the fixed seat, and the first slide block can slide Set on the first slide rail, the first slider is connected with the connecting piece, the top of the connecting piece passes through the first chute and is connected with the movable side baffle, and the front end of the connecting piece is connected with the side push plate , the side end of the fixed seat is provided with a limit plate, and a first spring member is provided between the limit plate and the connecting piece, and under the elastic force of the first spring piece, it can be pushed to connect with the connecting piece The movable side baffle abuts against the side end of the battery core. 9. The intelligent welding equipment for lithium battery and circuit board according to claim 1, characterized in that: the welding seam detection station includes a gantry and four laser sensors located on the top of the gantry, the four The laser sensor can perform laser detection of the weld seam on the four welds of the two batteries on the fixture carrier. 10. The intelligent welding equipment for lithium battery and circuit board according to claim 1, characterized in that: the cell clamping mechanism includes a third column, a second linear movement module, a second lifting movement module, a suction Nozzle fixing plate and some second vacuum suction nozzles, the third column is arranged on the frame, the second linear movement module is arranged on the top of the third column, the movable end of the second linear movement module is connected with the first The two lifting and moving modules are connected, and the movable end of the second lifting and moving module is connected with the suction nozzle fixing plate, and the left and right sides of the suction nozzle fixing plate are respectively provided with a number of second vacuum suction nozzles, so that the electric The two battery cells on the core conveyor belt are simultaneously clamped into the two battery cell positioning grooves of the jig carrier plate on the battery loading station.

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