CN115055816A - A kind of battery upper cover automatic welding equipment and method - Google Patents

Abstract

The invention relates to the field of new energy batteries, in particular to automatic welding equipment and a method for an upper cover of a battery, which comprises a battery core feeding mechanism, an upper cover feeding mechanism, a welding mechanism, a detection and blanking mechanism and a turntable mechanism; the four groups of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; the battery cell feeding station, the upper cover feeding station, the welding station and the detection and blanking station are arranged on the rotating direction of the turntable assembly at equal intervals in sequence, the battery cell feeding mechanism is used for placing a semi-finished battery cell into a clamp assembly on the battery cell feeding station, the upper cover feeding mechanism is used for placing the upper cover onto the semi-finished battery cell in the clamp assembly on the upper cover feeding station, the welding mechanism is used for welding the upper cover in the clamp assembly of the welding station with the semi-finished battery cell, and the detection and blanking mechanism is used for detecting and blanking the finished battery cell in the clamp assembly of the detection and blanking station. The invention replaces the traditional manual production, can improve the production efficiency and greatly reduce the production cost.

Description

A kind of battery upper cover automatic welding equipment and method

technical field

The invention relates to the technical field of new energy batteries, in particular to an automatic welding device and method for a battery upper cover.

Background technique

Lithium-ion batteries are divided into square lithium batteries, cylindrical lithium batteries and button lithium batteries according to their shapes. Among them, square batteries are widely used in the field of power batteries due to their high volume utilization and convenient grouping. In the production process of square batteries, it is necessary to weld the tabs of the battery cells and the upper cover to realize the function of current conduction. However, in the existing production process, manual feeding and unloading are often used for welding, which has low production efficiency, and cannot perform on-line detection of battery insulation and air tightness.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an automatic welding equipment and method for the upper cover of the battery, which replaces the traditional manual production, not only improves the production efficiency, but also greatly reduces the production cost. The components are combined with Hi-Pot test components and helium detection components to monitor and process the quality of semi-finished products produced by batteries, which reduces the defective rate of finished products and reduces production costs.

In order to achieve the above purpose, the technical solution of the present invention is an automatic welding equipment for the upper cover of the battery, including a battery core feeding mechanism, a top cover feeding mechanism, a welding mechanism, a detection and unloading mechanism and a turntable mechanism; the turntable mechanism includes: A turntable assembly and four sets of clamp assemblies, the four sets of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; in the rotation direction of the turntable assembly, cell loading workers are arranged at equal intervals in sequence. position, upper cover feeding station, welding station and detection and unloading station, the cell feeding mechanism is used to place the semi-finished cell into the fixture assembly on the cell feeding station, the upper The cover feeding mechanism is used to place the upper cover on the semi-finished battery cell in the fixture assembly on the upper cover feeding station, and the welding mechanism is used for welding the upper cover in the fixture assembly of the welding station to the semi-finished battery cell , the detection and blanking mechanism is used to detect and blank the finished battery cells in the fixture assembly of the detection and blanking station.

Further, the cell feeding mechanism includes a cell feeding rack, a cell feeding robot, a full cell material box feeding assembly, an empty cell material box unloading assembly, an empty material box lifting assembly, and a battery cell. The visual component for feeding; the feeding component for the full cell material box and the unloading component for the empty cell material box are respectively arranged on the upper layer and the lower layer of the battery feeding rack; the battery feeding robot is installed On one side of the cell feeding rack, it is used to grab the semi-finished cells in the charging assembly of the full cell material box and place them in the fixture assembly on the cell feeding station; The material box lifting component is located at one end of the battery cell feeding rack, and is used to transfer the empty battery cell material box on the full battery cell material box feeding component to the empty battery cell material box unloading component; the The battery core feeding visual component is arranged above the battery core feeding frame.

Further, the charging assembly for the full cell material box includes an upper belt drive unit for receiving and conveying the full cell material box, and the unloading assembly for the empty cell material box includes an upper belt transmission unit for receiving and outputting the empty cell material box. The lower belt transmission unit of the material box; the empty material box lifting assembly includes an intermediate belt transmission unit and an empty material box lifting module for driving the intermediate belt transmission unit to move in the vertical direction, the intermediate belt transmission unit It is used to receive the empty cell material box conveyed by the upper belt drive unit and transfer it to the lower belt drive unit.

Further, the upper cover feeding mechanism includes an upper cover feeding rack, an upper cover feeding robot, and an upper cover feeding visual assembly; The material tray station; the upper cover feeding robot is arranged on one side of the upper cover feeding rack, and is used to grab the upper cover on the full material tray station and place it in the upper cover feeding station on the semi-finished cell in the clamp assembly on the upper cover; the upper cover feeding visual component is arranged above the upper cover feeding rack.

Further, the upper cover feeding rack also has an empty material tray station for placing the empty upper cover material tray; the upper cover feeding rack is also provided with a full material tray lifting module, an empty material tray. A tray lifting module and an empty tray translation assembly, the full tray lifting module is used to drive the full top cover tray on the full tray station to move upward, and the empty tray translation assembly is used for filling the full tray. The empty cover material tray on the tray station is transferred to the empty material tray station, and the empty material tray lifting module is used to drive the empty cover material tray on the empty material tray station to move down .

Further, the turntable assembly includes a turntable, a DD motor and an electrical slip ring, the bottom of the turntable is provided with a DD motor for driving the turntable to rotate, and an electrical slip ring is arranged above the turntable; The circumferential direction of the turntable is equidistantly spaced on the turntable.

Further, the welding mechanism includes a workbench, an XY module, a laser focusing axis, a laser welding head and a vacuum cleaner; the XY module is arranged on the workbench, and the laser focusing axis is installed on the XY On the module, the laser welding head and the vacuum cleaner are coaxially mounted on the laser focusing shaft.

Further, the detection and blanking mechanism includes a helium detection component, a Hi-Pot test component, a blanking component, a first robot and a second robot; the Hi-Pot test component is arranged on the turntable mechanism and the helium between the inspection components; the first robot is set on one side of the Hi-Pot test assembly for grabbing the finished cells in the fixture assembly on the inspection and unloading stations and placing them on the Hi-Pot test assembly, And after the Hi-Pot test, put the qualified finished battery cells in the Hi-Pot test qualified area; the second robot is arranged on one side of the helium detection component, and is used to grab the Hi-Pot test qualified area The finished cells in the area are placed on the helium inspection assembly, and after the helium inspection is completed, the finished cells that pass the helium inspection are placed in the blanking assembly, and the finished cells that fail the helium inspection are placed in the NG tray.

The present invention also provides an automatic welding method for the upper cover of a battery, which adopts the above-mentioned automatic welding equipment for the upper cover of the battery, and the method includes the following steps:

1) Drive the turntable assembly to rotate, so that one of the fixture assemblies is located at the cell feeding station; the full cell material box feeding assembly of the cell feeding mechanism automatically receives the full cell material box delivered in the previous process and delivers it to the battery cell. At the cell feeding end, the visual component for cell feeding performs visual positioning. The cell feeding robot grabs the semi-finished cells in the full cell material box at the cell feeding end and places them on the fixture assembly on the cell feeding station. middle;

2) Drive the turntable assembly to rotate, so that the fixture assembly with the semi-finished batteries is located at the upper cover feeding station; the upper cover feeding visual component of the upper cover feeding mechanism performs visual positioning, and the upper cover feeding robot grabs the upper cover. The upper cover in the material tray is placed on the semi-finished cell in the fixture assembly on the upper cover feeding station;

3) Drive the turntable assembly to rotate, so that the fixture assembly with the semi-finished batteries and the upper cover is located at the welding station; the laser focus axis of the welding mechanism is used for laser focus calibration, and the XY module drives the laser welding head for welding. The vacuum cleaner sucks up the welding slag in time;

4) After welding, drive the turntable assembly to rotate, so that the fixture assembly with the finished battery cells is located at the detection and blanking station; the first robot of the detection and blanking mechanism grabs the finished battery cells on the detection and blanking station And put it on the Hi-Pot test assembly for Hi-Pot test, the cells that pass the Hi-Pot test are grabbed by the second robot and put into the helium detection assembly for helium detection, and the cells that pass the helium test are tested by the second robot. Grab and put them into the unloading assembly, and the cells that fail the helium test are grabbed by the second robot and put into the NG tray.

Further, in step 1), the empty cell material box on the feeding assembly of the full cell material box is transferred from the empty material box lifting assembly to the empty cell material box unloading assembly for unloading; in step 2), the empty cell material box is The empty cover tray on the tray station is transferred from the empty tray translation component to the empty tray station, and each time an empty cover tray is removed from the full tray station, the full tray lift module drives The full top cover tray on the full tray station moves up one grid, and each time an empty top cover tray is added to the empty tray station, the empty tray lift module drives the empty tray workers on the empty tray station. Move the bit down one space.

Compared with the prior art, the present invention has the following beneficial effects:

The battery upper cover automatic welding equipment and method of the present invention adopts the battery cell feeding mechanism to automatically load the battery cell, the upper cover feeding mechanism to automatically put the upper cover, the welding mechanism to automatically weld, the detection and unloading mechanism to automatically detect and unload, and to cooperate with the turntable. The mechanism drives four sets of fixture components to rotate, replacing traditional manual production, which can greatly improve production efficiency, reduce production costs, save manpower for enterprises, and improve product quality; at the same time, visual components, Hi-Pot test components, helium test components, etc. are used. Combined with the work line, the quality of the finished product welded on the upper cover is monitored and processed, which reduces the defective rate of the finished product.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic structural diagram of an automatic welding device for a battery upper cover provided by an embodiment of the present invention;

2 is a schematic structural diagram of a cell feeding mechanism provided by an embodiment of the present invention;

FIG. 3 is a partially enlarged schematic diagram of a cell feeding mechanism provided by an embodiment of the present invention;

4 is a schematic structural diagram of a turntable mechanism provided by an embodiment of the present invention;

5 is a schematic structural diagram of an upper cover feeding mechanism provided by an embodiment of the present invention;

6 is a schematic structural diagram of a welding mechanism provided by an embodiment of the present invention;

7 is a schematic structural diagram of a detection and blanking mechanism provided by an embodiment of the present invention;

In the figure: 1. Cell feeding mechanism; 11. Cell feeding rack; 12. Cell feeding robot; 13. Feeding assembly for full cell material box; 131, Upper belt; 132, Upper driving wheel; 133, upper driven wheel; 134, upper drive motor; 14, empty cell material box blanking assembly; 15, empty material box lifting assembly; 151, intermediate belt drive unit; 1511, intermediate frame body; 1512, intermediate driving wheel; 152, Empty material box lifting module; 1521, Upright column; 1522, Lifting drive device; 16, Visual component for cell feeding; 161, Camera bracket; 162, CCD camera; 2, Turntable mechanism; 21, Turntable assembly; 211, Turntable; 212, DD motor; 213, electrical slip ring; 22, fixture assembly; 23, top material opening and clamping assembly; 3, top cover feeding mechanism; 31, top cover feeding rack; 311, carrying plate; 312, Tray frame; 313, Limit block; 32, Top cover feeding robot; 33, Top lid feeding visual component; 34, Full tray lift module; 35, Empty tray lift module; 36, Empty tray Translation component; 361, horizontal slide rail; 362, horizontal slider; 363, horizontal moving arm; 4, welding mechanism; 41, worktable; 42, XY module; 43, laser focusing axis; 44, laser welding head; 45. Vacuum cleaner; 5. Detection and unloading mechanism; 51. Hi-Pot test assembly; 52. The first robot; 53. Helium inspection assembly; 531, Helium inspection rack; 532, Helium inspection device; 533, NG disk; 54. The second robot; 55. The blanking component.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first" and "second" may expressly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, the meaning of "several" is two one or more than two.

As shown in Figures 1-7, the present embodiment provides an automatic welding equipment for the upper cover of the battery, including a battery cell feeding mechanism 1, a top cover feeding mechanism 3, a welding mechanism 4, a detection and unloading mechanism 5 and a turntable mechanism 2; the turntable mechanism 2 includes a turntable assembly 21 and four groups of clamp assemblies 22, and the four groups of clamp assemblies 22 are arranged on the turntable assembly 21 at equal intervals along the circumferential direction of the turntable assembly 21; In the direction of rotation, there are cell feeding stations, upper cover feeding stations, welding stations and detection and unloading stations in sequence at equal intervals. In the fixture assembly 22 on the battery cell feeding station, the upper cover feeding mechanism 3 is used to place the upper cover on the semi-finished battery cell in the fixture assembly 22 on the upper cover feeding station, and the welding mechanism 4 is used to weld the upper cover in the fixture assembly 22 of the welding station to the semi-finished cell, and the detection and unloading mechanism 5 is used to detect and unload the finished cell in the fixture assembly 22 of the detection and unloading station. material. In this embodiment, the cell feeding mechanism 1 , the upper cover feeding mechanism 3 , the welding mechanism 4 , the detection and unloading mechanism 5 and the turntable mechanism 2 are all arranged on the base of the machine, and the cell feeding mechanism 1 is used to automatically load The battery cell, the upper cover and the feeding mechanism 3 automatically cover the upper cover, the welding mechanism 4 automatically welds, the detection and unloading mechanism 5 automatically detects and unloads, and cooperates with the turntable mechanism 2 to drive the four sets of fixture components 22 to rotate, replacing the traditional manual production. It can greatly improve production efficiency, reduce production costs, save manpower for enterprises, and improve product quality.

Further, the cell feeding mechanism 1 includes a cell feeding rack 11, a cell feeding robot 12, a full cell feeding assembly 13, an empty cell feeding assembly 14, and an empty feeding box. The lifting assembly 15 and the cell feeding visual assembly 16 ; the full cell material box feeding assembly 13 and the empty cell material box unloading assembly 14 are respectively arranged on the upper and lower layers of the cell feeding rack 11 . The lower layer; the cell feeding robot 12 is arranged on one side of the cell feeding rack 11, and is used to grab the semi-finished cells in the charging assembly 13 of the full cell material box and place them on the cells In the clamp assembly 22 on the feeding station; the empty material box lifting assembly 15 is located at one end of the battery feeding rack 11, and is used for emptying the empty cell material on the charging assembly 13 of the full battery cell material box. The box is transferred to the empty cell material box unloading assembly 14 ; the cell feeding visual assembly 16 is arranged above the battery cell feeding rack 11 . As shown in Fig. 2-Fig. 3, the cell feeding mechanism 1 of this embodiment adopts a double-layer return line, which is automatically connected to the material box in the previous process to automatically feed the material, and the upper-layer full battery cell material box feeding assembly 13 is used for automatic feeding. The slow material box is loaded, and the empty material box is converged to the previous process from the lower empty cell material box unloading assembly 14 .

Further, the fully charged cell material box feeding assembly 13 includes an upper belt drive unit for receiving and conveying the full battery cell material box, and the empty cell material box unloading assembly 14 includes a The lower belt transmission unit of the battery cell material box; the empty material box lifting assembly 15 includes an intermediate belt transmission unit 151 and an empty material box lifting module 152 for driving the intermediate belt transmission unit 151 to move in the vertical direction, The intermediate belt transmission unit 151 is used to receive the empty cell cartridges conveyed by the upper belt transmission unit and transfer them to the lower belt transmission unit. As shown in Fig. 2-Fig. 3, in this embodiment, the charging assembly 13 of the fully charged cell, the unloading assembly 14 of the empty cell, and the lifting assembly 15 of the empty cell all adopt a belt drive structure, so as to facilitate receiving and Transfer the empty cell cartridge. Optimized, there is also a limit component on the frame. When the full battery cell material box of the upper belt drive unit reaches the design position of the battery feeding end, the limit component extends out to limit the full battery cell material box to continue to move forward; The battery cells in the full battery cell material box at the core feeding end have been picked up by the battery cell feeding robot 12, and the limiter assembly is retracted. At this time, the intermediate belt drive unit 151 has been waiting in a position flush with the upper belt drive unit and is The rotation direction is the same as that of the upper belt drive unit. The upper belt drive unit drives the empty cell material box to move forward and transitions the empty cell material box to the intermediate belt transmission unit 151. When the empty cell material box is completely located in the intermediate belt transmission unit 151 When it goes up, the rotation stops, the empty box lifting module 152 is activated, and drives the intermediate belt drive unit 151 and the empty cell material box on it to move down to a position flush with the lower belt drive unit, and the intermediate belt drive unit 151 is reversed. , transfer the empty cell material box on it to the lower belt drive unit, when the empty cell material box completely transitions to the lower belt transmission unit, the intermediate belt transmission unit 151 stops rotating, and the lower belt transmission unit drives the empty cell. Box unloading.

Refining the above embodiment, as shown in Figures 2-3, the upper belt transmission unit includes an upper belt 131, an upper driving wheel 132, an upper driven wheel 133 and an upper driving motor 134, and the upper driving wheel 132 and the upper driven wheel 133 are rotatable The upper belt 131 is tensioned on the upper driving wheel 132 and the upper driven wheel 133, and the upper driving motor 134 is fixed on the battery cell feeding frame 11 and connected with the upper driving wheel 132. ; The structure of the lower belt transmission unit is the same as that of the upper belt transmission unit, and will not be repeated here.

2-3, the intermediate belt transmission unit 151 includes an intermediate frame body 1511, an intermediate belt, an intermediate driving pulley 1512, an intermediate driven pulley and an intermediate driving motor, and the intermediate driving pulley 1512 and the intermediate driven pulley It is rotatably installed on the intermediate frame body 1511, the intermediate belt is tensioned on the intermediate driving wheel 1512 and the intermediate driven wheel, and the intermediate driving motor is connected with the intermediate driving wheel 1512; the empty box lifting module 152 includes a column 1521, a lifting driving device 1522. Lifting rails and lifting sliders, the column 1521 is fixed on the cell feeding rack 11, the column 1521 is provided with a lifting track arranged in the vertical direction, and the lifting slider is installed on the lifting track and is connected with the intermediate frame 1511 connected to drive the intermediate belt drive unit 151 to move up and down; the lift drive device 1522 is fixed on the top of the column 1521, and the output end of the lift drive device 1522 is connected to the lift slider.

Refining the above embodiment, as shown in FIG. 2 , the cell feeding visual component 16 includes a camera bracket 161 and a CCD camera 162, and the camera bracket 161 is fixed on the cell feeding end on the cell feeding rack 11; the CCD camera 162 is movably arranged on the camera bracket 161, and is used for visual positioning of the full cell material box at the charging end of the cell and the semi-finished cell in it.

Further, the upper cover loading mechanism 3 includes an upper cover loading rack 31, an upper cover loading robot 32 and an upper cover loading visual assembly 33; the upper cover loading rack 31 has a The full material tray station of the cover tray; the upper cover feeding robot 32 is arranged on one side of the upper cover feeding rack 31, and is used to grab the upper cover on the full material tray station and place it onto the semi-finished cells in the fixture assembly 22 on the upper cover loading station; the upper cover loading visual assembly 33 is arranged above the upper cover loading rack 31 . As shown in FIG. 4 , in this embodiment, the structure of the upper cover feeding visual assembly 33 is the same as that of the cell feeding visual assembly 16 , and details are not repeated here.

Further, as shown in FIG. 4 , the upper cover feeding rack 31 also has an empty material tray station for placing empty upper cover material trays; the upper cover feeding rack 31 is also provided with a full The feeding tray lifting module 34, the empty feeding tray lifting module 35 and the empty feeding tray translation assembly 36, the full feeding tray lifting module 34 is used to drive the fully covered feeding tray on the full feeding tray station to move upward , the empty tray translation assembly 36 is used to transfer the empty cover tray on the full tray station to the empty tray station, and the empty tray lift module 35 is used to drive the empty tray The empty cover tray on the tray station moves down.

The above-mentioned embodiment is optimized. As shown in FIG. 4 , in this embodiment, the upper cover feeding rack 31 includes a carrier plate 311 , on the carrier plate 311 corresponding to the full tray station and the empty tray station are respectively provided with Place the tray frame 312 with the top cover tray and the empty top tray, and the top of the tray frame 312 is provided with a limit block 313 to prevent the full top tray or the empty top tray from being pushed out of the tray frame 312 And the bearing plate 311 below the tray frame 312 is provided with an ejection hole whose size is smaller than that of the upper cover tray, and the full tray lifting module 34 and the empty tray lifting module 35 are both arranged below the bearing plate 311 , and the full tray lifting module 34 can lift the full cover tray through the ejection hole at the full tray station, and the empty tray lifting module 35 can be supported by the ejection hole at the empty tray station Empty lid tray. Among them, the structure of the full tray lifting module 34 and the empty tray lifting module 35 are the same, and both can adopt a cylinder drive structure, and the end of the piston rod of the cylinder drive structure can be fixed with a top plate, which is used for lifting or supporting Hold the lid on the tray.

Refining the above embodiment, as shown in FIG. 4 , in this embodiment, the tray frame 312 of the full tray station and the tray frame 312 of the empty tray station are arranged in parallel, and the empty tray translation assembly 36 includes a horizontal slide rail 361, a horizontal sliding block 362, a horizontal moving arm 363 and a driving device for driving the horizontal sliding block 362 to move along the horizontal sliding rail 361, wherein the horizontal sliding rail 361 is fixed above the same side of the two tray frames 312; the horizontal moving arm 363 is perpendicular to the horizontal slide rail 361, one end of which is fixed on the horizontal slider 362, and the other end is provided with a suction cup structure, which is used to grab the empty upper cover tray of the full tray station and put it on the empty tray station. in the tray frame 312.

Further, the turntable assembly 21 includes a turntable 211 , a DD motor 212 and an electrical slip ring 213 . The bottom of the turntable 211 is provided with a DD motor 212 for driving the turntable 211 to rotate, and an electrical circuit is provided above the turntable 211 . Slip ring 213 ; four sets of clamp assemblies 22 are arranged on the turntable 211 at equal intervals along the circumferential direction of the turntable 211 . As shown in FIG. 5 , in this embodiment, the turntable 211 needs to pause for feeding, welding or unloading every time the turntable 211 rotates 90°. The DD motor 212 is used to drive the turntable 211 to rotate, which can ensure the rotation positioning accuracy; Slip ring 213, the whole line goes up into the electric control box.

The above embodiment is optimized. As shown in FIG. 5 , there is also a top material opening and clamping assembly 23 below the turntable 211 . The four sets of clamp assemblies 22 in this embodiment clamp the semi-finished cells through elastic elements, and the cell feeding robot 12 While grabbing the semi-finished battery cells, the ejector opening and clip assembly 23 pushes the elastic element upwards and leaves a place where the semi-finished battery cells can be placed. After the reserved position is reached, the ejector opening and clamping assembly 23 is retracted, the elastic element locates and clamps the semi-finished cell, and then follows the turntable 211 to one end of the next station.

Further, the welding mechanism 4 includes a worktable 41, an XY module 42, a laser focusing shaft 43, a laser welding head 44 and a vacuum cleaner 45; the XY module 42 is arranged on the worktable 41, and the laser The focusing axis 43 is mounted on the XY module 42 , and the laser welding head 44 and the vacuum cleaner 45 are coaxially mounted on the laser focusing axis 43 . As shown in FIG. 6 , in this embodiment, the worktable 41 is fixed on the base of the machine, and the XY module 42 , the vacuum cleaner 45 and the laser focusing axis 43 can all adopt the existing structures, wherein the XY module 42 is used to drive the laser welding The head 44 moves along the X-axis and the Y-axis to follow the welding track, which can be driven by a linear motor to ensure the welding track accuracy and the consistency of the welding products. The laser focusing axis 43 is used to adjust the focus, and the vacuum cleaner 45 is used to absorb the laser welding process. Welding slag and dust generated in the In this embodiment, an automatic welding seam detection device can also be provided on one side of the welding mechanism 4 to detect the welding seam of the finished cell, and the qualified finished cell is transferred to the next station along with the turntable 211 .

Further, the detection and blanking mechanism 5 includes a helium detection component 53, a Hi-Pot test component 51, a blanking component 55, a first robot 52 and a second robot 54; the Hi-Pot test component 51 is provided in the between the turntable mechanism 2 and the helium detection assembly 53; the first robot 52 is arranged on one side of the Hi-Pot test assembly 51 for grabbing the finished product in the fixture assembly 22 on the detection and unloading stations The cells are placed on the Hi-Pot test assembly 51, and the qualified finished cells are placed in the Hi-Pot test qualified area after the Hi-Pot test; the second robot 54 is arranged on the helium detection assembly 53 one side, for grabbing the finished battery cells in the Hi-Pot test qualified area and placing them on the helium detection component 53, and after the helium detection is completed, place the helium-qualified finished battery cells in the unloading component 55 and Put the finished cells that fail the helium test into the NG tray 533 . In this embodiment, the unloading assembly 55 may adopt a flat belt drive structure, and a sensor may be provided at the loading end of the unloading assembly 55 .

Optimizing the above embodiment, as shown in FIG. 7 , the helium detection assembly 53 includes a helium detection frame 531 and a helium detection device 532 , and one end of the blanking assembly 55 extends to the helium detection frame 531 , and the Several helium detection devices 532 and NG trays 533 are provided on the helium detection racks 531 on both sides of the blanking assembly 55; Helium detection device 532 on the side.

As shown in FIG. 1 to FIG. 7 , this embodiment also provides an automatic welding method for the upper cover of a battery, using the above-mentioned automatic welding equipment for the upper cover of a battery, and the method includes the following steps:

1) Drive the turntable assembly 21 to rotate, so that one of the clamp assemblies 22 is located at the cell feeding station; the full cell material box feeding assembly 13 of the cell feeding mechanism 1 automatically receives the full cell material box delivered by the previous process. And transported to the cell feeding end, the cell feeding visual component 16 performs visual positioning, and guides the cell feeding robot 12 to take the material trajectory; the cell feeding robot 12 grabs the battery cell feeding end. The semi-finished cells are placed in the fixture assembly 22 on the cell feeding station. The cell feeding robot 12 scans the code of the semi-finished cells during the feeding process, and the NG products are collected and processed manually;

2) Drive the turntable assembly 21 to rotate, so that the clamp assembly 22 containing the semi-finished battery cells is located at the upper cover feeding station; the upper cover feeding visual component 33 of the upper cover feeding mechanism 3 performs visual positioning to guide the upper cover feeding robot 32 Reclaiming track; the upper cover feeding robot 32 grabs the upper cover in the upper cover material tray and places it on the semi-finished cell in the fixture assembly 22 on the upper cover feeding station;

3) Drive the turntable assembly 21 to rotate, so that the clamp assembly 22 on which the semi-finished cell and the upper cover are placed is located at the welding station; the laser focus axis 43 of the welding mechanism 4 performs laser focal length calibration, and the XY module 42 drives the laser welding head 44 to come Follow the welding track, the laser welding head 44 is used for welding, and the vacuum cleaner 45 is used to absorb the welding slag in the welding process in time;

4) After the welding is completed, the turntable assembly 21 is driven to rotate, so that the fixture assembly 22 with the finished cell is located at the detection and blanking station; the first robot 52 of the detection and blanking mechanism 5 grabs the detection and blanking station. The finished battery cells are placed on the Hi-Pot test assembly 51 for Hi-Pot test. The cells that pass the Hi-Pot test are grabbed by the second robot 54 and placed in the helium detection assembly 53 for helium detection. The helium test is qualified The second robot 54 grabs and places the unqualified cells in the unloading assembly 55, and the second robot 54 grabs the unqualified cells and puts them in the NG tray 533 for centralized collection.

With the rotation of the turntable assembly 21 , the cell feeding robot 12 places the semi-finished cells in the fixture assembly 22 on the cell feeding station, and the upper cover feeding robot 32 upwardly covers the clamp assembly 22 on the feeding station. The upper cover, the laser welding head 44 welds the semi-finished cells and the upper cover in the fixture assembly 22 of the welding station, and the first robot 52 unloads the finished cells at the inspection and unloading stations and performs subsequent steps. Hi-Pot test and helium detection, such a cycle, realizes continuous battery cell, upper cover, welding and Hi-Pot test, helium detection and unloading, which greatly improves production efficiency. At the same time, visual components and Hi-Pot test components, The quality of the finished products welded with the upper cover is monitored and processed online by combining the helium inspection components and other components, which reduces the defective rate of the finished products.

Further, in step 1), the empty cell material box on the full cell material box feeding assembly 13 is transferred from the empty material box lifting assembly 15 to the empty cell material box unloading assembly 14 for unloading.

Further, in step 2), the empty upper cover tray on the full material tray station is transferred to the empty material tray station by the empty material tray translation assembly 36, and each empty upper cover is removed from the full material tray station. The material tray, the full material tray lifting module 34 drives the full cover material tray on the full material tray station to move up one space, and each time an empty material tray is added to the empty material tray. Drive the empty tray station on the empty tray station to move down one grid.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. The utility model provides a battery upper cover automatic weld equipment which characterized in that: the device comprises a battery cell feeding mechanism, an upper cover feeding mechanism, a welding mechanism, a detecting and discharging mechanism and a turntable mechanism; the turntable mechanism comprises a turntable assembly and four groups of clamp assemblies, and the four groups of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; the battery cell feeding mechanism is used for placing semi-finished battery cells into the clamp assembly on the battery cell feeding station, the upper cover feeding mechanism is used for placing the upper cover onto the semi-finished battery cells in the clamp assembly on the upper cover feeding station, the welding mechanism is used for welding the upper cover in the clamp assembly of the welding station with the semi-finished battery cells, and the detecting and blanking mechanism is used for detecting and blanking finished battery cells in the clamp assembly of the detecting and blanking station.

2. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the battery cell feeding mechanism comprises a battery cell feeding rack, a battery cell feeding robot, a full battery cell magazine feeding assembly, an empty battery cell magazine discharging assembly, an empty battery cell lifting assembly and a battery cell feeding visual assembly; the full-battery-core material box feeding assembly and the empty-battery-core material box discharging assembly are respectively arranged on the upper layer and the lower layer of the battery-core feeding rack; the battery cell feeding robot is arranged on one side of the battery cell feeding rack and used for grabbing semi-finished battery cells in the battery cell full magazine feeding assembly and placing the semi-finished battery cells in a clamp assembly on a battery cell feeding station; the empty battery box lifting assembly is positioned at one end of the battery cell feeding rack and used for transferring an empty battery cell box on the full battery cell box feeding assembly to the empty battery cell box discharging assembly; the battery cell loading visual assembly is arranged above the battery cell loading rack.

3. The automatic welding equipment for the upper cover of the battery as claimed in claim 2, wherein: the full-cell magazine feeding assembly comprises an upper belt transmission unit for receiving and conveying a full-cell magazine, and the empty-cell magazine discharging assembly comprises a lower belt transmission unit for receiving and outputting an empty-cell magazine; the empty material box lifting assembly comprises an intermediate belt transmission unit and an empty material box lifting module used for driving the intermediate belt transmission unit to move in the vertical direction, and the intermediate belt transmission unit is used for receiving the empty electric core material boxes conveyed by the upper belt transmission unit and transferring the empty electric core material boxes to the lower belt transmission unit.

4. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the upper cover feeding mechanism comprises an upper cover feeding rack, an upper cover feeding robot and an upper cover feeding visual assembly; the upper cover feeding frame is provided with a full-tray station for placing full-tray upper covers; the upper cover feeding robot is arranged on one side of the upper cover feeding rack and used for grabbing the upper cover on the full material tray station and placing the upper cover on a semi-finished product battery cell in the clamp assembly on the upper cover feeding station; the upper cover feeding visual assembly is arranged above the upper cover feeding rack.

5. The automatic welding equipment for the upper cover of the battery as claimed in claim 4, wherein: the upper cover feeding rack is also provided with an empty tray station for placing an empty upper cover tray; the upper cover feeding rack is also provided with a full-material-disc lifting module, an empty-material-disc lifting module and an empty-material-disc translation assembly, the full-material-disc lifting module is used for driving the full-material-disc material disc on the full-material-disc station to move upwards, the empty-material-disc translation assembly is used for transferring the empty-material-disc material on the full-material-disc station to the empty-material-disc station, and the empty-material-disc lifting module is used for driving the empty-material-disc material on the empty-material-disc station to move downwards.

6. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the turntable assembly comprises a turntable, a DD motor and an electric slip ring, the DD motor for driving the turntable to rotate is arranged at the bottom of the turntable, and the electric slip ring is arranged above the turntable; four sets of anchor clamps subassemblies are followed the circumference equidistance interval of carousel set up in on the carousel.

7. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the welding mechanism comprises a workbench, an XY module, a laser focusing shaft, a laser welding head and a dust collector; the XY module set up in on the workstation, the laser focusing axle install in on the XY module, the laser welding head with dust catcher coaxial arrangement in on the laser focusing axle.

8. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the detection and blanking mechanism comprises a helium detection assembly, a Hi-Pot test assembly, a blanking assembly, a first robot and a second robot; the Hi-Pot testing assembly is arranged between the turntable mechanism and the helium detecting assembly; the first robot is arranged on one side of the Hi-Pot test assembly and used for grabbing finished product battery cells in the fixture assembly on the detection and blanking station and placing the finished product battery cells on the Hi-Pot test assembly, and placing the finished product battery cells qualified in the Hi-Pot test qualified area after the Hi-Pot test is finished; and the second robot is arranged on one side of the helium detection assembly and is used for grabbing the finished product battery cells in the Hi-Pot test qualified area and placing the finished product battery cells on the helium detection assembly, placing the finished product battery cells qualified in the helium detection into the blanking assembly after the helium detection is finished, and placing the finished product battery cells unqualified in the helium detection into the NG disc.

9. An automatic welding method for an upper cover of a battery is characterized in that: the automatic welding equipment for the battery upper cover, which adopts any one of claims 1-8, comprises the following steps:

1) driving the turntable assembly to rotate, so that one of the clamp assemblies is positioned on the battery cell feeding station; a full-cell magazine feeding assembly of the cell feeding mechanism automatically receives a full-cell magazine conveyed in a previous procedure and conveys the full-cell magazine to a cell feeding end, a cell feeding visual assembly carries out visual positioning, and a cell feeding robot grabs a semi-finished cell in the full-cell magazine at the cell feeding end and places the semi-finished cell in a cell feeding station into a clamp assembly on a cell feeding station;

2) driving the turntable assembly to rotate, so that the clamp assembly with the semi-finished product battery cell is positioned at an upper cover feeding station; an upper cover feeding visual component of the upper cover feeding mechanism performs visual positioning, and an upper cover feeding robot grabs an upper cover in a full upper cover tray and places the upper cover on a semi-finished product battery cell in a clamp component on an upper cover feeding station;

3) driving the turntable assembly to rotate, so that the clamp assembly provided with the semi-finished product battery cell and the upper cover is positioned at a welding station; a laser focusing shaft of the welding mechanism is used for carrying out laser focus calibration, the XY module drives a laser welding head to carry out welding, and a dust collector is adopted to suck away welding slag in time in the welding process;

4) after welding, driving the turntable assembly to rotate, and enabling the clamp assembly with the finished product battery cell to be positioned at a detection and blanking station; and a first robot of the detection and blanking mechanism grabs finished product battery cells on the detection and blanking station and places the finished product battery cells on the Hi-Pot test component for Hi-Pot test, battery cells qualified in the Hi-Pot test are grabbed by a second robot and placed in the helium detection component for helium detection, battery cells qualified in the helium detection are grabbed by the second robot and placed in the blanking component, and battery cells unqualified in the helium detection are grabbed by the second robot and placed in the NG disc.

10. The automatic welding method for the upper cover of the battery as claimed in claim 9, wherein: in the step 1), an empty cell magazine on the full cell magazine feeding assembly is transferred to an empty cell magazine discharging assembly from the empty magazine lifting assembly to be discharged; in the step 2), the empty upper cover material discs on the full material disc station are transferred to the empty material disc station through the empty material disc translation assembly, when one empty upper cover material disc is moved on the full material disc station, the full material disc lifting module drives the full upper cover material discs on the full material disc station to move upwards for one cell, when one empty upper cover material disc is added on the empty material disc station, the empty material disc lifting module drives the empty material disc station on the empty material disc station to move downwards for one cell.

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