A kind of power battery pole automatic welding equipment and welding method

Abstract

The present invention relates to the field of battery production technology, and specifically to an automatic welding device and method for power battery poles. The device includes a loading mechanism for loading batteries onto a code scanning mechanism, and the code scanning mechanism is used to record the recording code on each battery; a welding mechanism for welding the poles of the battery; and a unloading mechanism for unloading the battery after the poles are welded; wherein the welding mechanism includes: a turntable and a processing mechanism, the turntable rotates around its axis, and the rotation direction of the turntable is provided with a rotation starting point and a rotation end point, the rotation starting point is the turntable loading position, and the rotation end point is the turntable unloading position; the processing mechanism includes a turntable, a first battery cell polarity detection component, a first battery flipping component, a laser welding component, a battery welding appearance detection component, a second battery flipping component, and a second battery cell polarity detection component arranged in sequence along the direction from the rotation starting point to the rotation end point of the turntable.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to automatic welding equipment and a welding method for power battery poles. Background Art

[0002] During the battery production process, the battery pole needs to be welded so that the battery can be connected to external components through the battery pole. Currently, the battery pole is welded to the end of the battery by welding.

[0003] Although welding technology can weld the pole to the end of the battery well, the process of welding the pole is not just a simple welding of the pole to the end. Before welding, the battery needs to be transported and the integrity of the battery needs to be checked. After welding, the welding effect needs to be tested to avoid defective welding products from entering the market.

[0004] The existing technology mainly involves manually placing batteries on a conveyor belt, controlling the circulation frequency of the batteries through the conveyor belt, and thus controlling the processing flow. The battery quality is then checked manually before being sent to the conveyor belt. This is inefficient on the one hand, and it is easy to miss parts during inspection on the other hand, and does not utilize efficient battery production. Summary of the invention

[0005] One of the purposes of the present invention is to avoid the shortcomings of the prior art and provide an automatic welding device for power battery poles, which can orderly control the various procedures of battery production and automatically detect the quality of batteries after each process to ensure the welding quality of battery poles and has the advantage of high efficiency.

[0006] A second object of the present invention is to provide a welding method for automatic welding equipment of power battery poles.

[0007] To achieve one of the above purposes, the present invention provides the following technical solutions:

[0008] Provided is a power battery pole automatic welding device, comprising:

[0009] A feeding mechanism, used for feeding the batteries to the code scanning mechanism, and the code scanning mechanism is used for recording the recording code on each battery;

[0010] A welding mechanism, used for welding the battery poles;

[0011] A feeding mechanism is used to feed the battery after the poles are welded;

[0012] Wherein, the welding mechanism includes: a turntable and a processing mechanism,

[0013] The turntable rotates around its axis, and the direction of rotation of the turntable is provided with a rotation starting point and a rotation end point, the rotation starting point is the upper material position of the turntable, and the rotation end point is the lower material position of the turntable;

[0014] The processing mechanism includes a material transfer mechanism, a first battery cell polarity detection component, a first battery flipping component, a laser welding component, a battery welding appearance detection component, a second battery flipping component and a second battery cell polarity detection component which are arranged in sequence outside the turntable along the direction from the rotation starting point to the rotation end point of the turntable.

[0015] In some embodiments, the feeding mechanism comprises:

[0016] a first conveyor belt and a second conveyor belt, wherein the first conveyor belt and the second conveyor belt are arranged side by side;

[0017] A first rotating plate is provided between the first conveyor belt and the second conveyor belt, and a first clamp is hung on the first rotating plate through a first cylinder. The first rotating plate switches the first clamp to be located above the first conveyor belt or above the second conveyor belt by rotating, and the first clamp transfers the batteries on the first conveyor belt to the batteries on the second conveyor belt.

[0018] In some embodiments, the first rotating plate is hung with at least two groups of first clamps, wherein the two groups of first clamps are correspondingly located above the first conveyor belt and above the second conveyor belt.

[0019] In some embodiments, the first conveyor belt is provided with a threaded rod, the threaded rod rotates around its axis, the threaded rod is opposite to the clamp, the threaded rod and the first clamp are located on both sides of the first conveyor belt, and each thread groove of the threaded rod is adapted to a single battery.

[0020] In some embodiments, each of the second conveyor belts is composed of two slideways, and a plurality of cup holders are slidably connected to the slideways, and the cup holders are adapted to the batteries.

[0021] In some embodiments, the turntable is disposed on one side of the second conveyor belt, and the material transfer mechanism is disposed between the second conveyor belt and the turntable;

[0022] The material transfer mechanism comprises: a second rotating plate, the second rotating plate is hung with at least two sets of second clamps, wherein the at least two sets of second clamps are arranged on opposite sides of the second rotating plate.

[0023] The second rotating plate drives a group of second clamps to clamp the battery loading on the second conveyor belt to the rotation starting point by rotating, and drives another group of second clamps to clamp the battery loading at the rotation end point to the second conveyor belt;

[0024] The second conveyor belt is provided with a loading station, and a divider is provided below the loading station. When the battery is transferred to the loading station, the lifting shaft of the divider rises and lifts the battery on the loading station to the second clamp, and the second clamp loads the battery to the rotation starting point.

[0025] In some embodiments,

[0026] The first battery cell polarity detection component and the second battery cell polarity detection component include:

[0027] A bracket, wherein a second cylinder is disposed on the bracket, a telescopic rod of the second cylinder is connected to a battery probe, and the battery probe points to the battery on the turntable,

[0028] When the turntable drives the battery to the battery cell probe, the second cylinder drives the battery cell probe to press against the battery core, and the battery cell probe detects whether there is a battery cell in the battery core.

[0029] In some embodiments, the first battery flip assembly and the second battery flip assembly include:

[0030] A rack, the rack moving closer to or farther away from the turntable along a slide rail;

[0031] A rotating shaft, one end of which is mounted on the frame, and the other end of which is provided with a third clamp. When the turntable drives the battery to the third clamp, the frame drives the third clamp to move and clamp the battery on the turntable, and the rotating shaft drives the third clamp holding the battery to flip over, thereby flipping the battery.

[0032] In some embodiments, the laser welding assembly comprises:

[0033] A laser, the laser is directed toward the battery on the turntable, and the laser is used for laser welding of battery poles;

[0034] A positioning sleeve is connected to a nitrogen nozzle and a dust hood. When laser welding a battery pole, the positioning sleeve moves and surrounds the periphery of the battery end where the battery pole is located.

[0035] In some embodiments, the laser welding assembly further comprises a fixing frame,

[0036] The laser is arranged on the top of the fixing frame, a vertical guide rail is arranged below the laser, the positioning sleeve is arranged on the guide rail, and the positioning sleeve approaches or leaves the outer periphery of the battery end along the guide rail.

[0037] In some embodiments, a tensile test assembly is further included to test the filling tightness of the battery core, and the tensile test assembly includes:

[0038] A lifting component is provided with a suction cup on the top of the lifting component, and the lifting component drives the suction cup to move closer to or away from the top of the battery. The suction cup tests the tightness of the battery core filled in the battery shell by sucking the battery core.

[0039] In some embodiments, the unloading mechanism comprises:

[0040] an identification component, the identification component identifying defective products outputted on the second conveyor belt;

[0041] A rejecting mechanism, the rejecting mechanism is connected to the identification component and rejects defective products on the second conveyor belt to a buffer area for storing defective products;

[0042] The identification component includes an identification code and a barcode scanner. Each product is provided with an independent identification code. The barcode scanner is connected to a detection component. The barcode scanner identifies the identification code of a defective product according to the detection information of the detection component.

[0043] The rejection mechanism includes a third cylinder, and a telescopic rod of the third cylinder translates defective products to the buffer area;

[0044] The code scanner is arranged on the third cylinder;

[0045] A discharge conveyor belt is provided on one side of the second conveyor belt, an ejector rod is provided on one side of the discharge conveyor belt, and a gate plate is provided on the other side of the discharge conveyor belt. The gate plate is opposite to the ejector rod and is movably linked. When the ejector rod translates defective products, the gate plate opens.

[0046] Beneficial effects of the automatic welding equipment for power battery poles of the present invention:

[0047] (1) The power battery pole automatic welding equipment of the present invention automatically loads the battery through the loading mechanism, and timely obtains the two-dimensional code information on the battery through the code scanning mechanism, thereby recording the quality of each battery, which is conducive to subsequent timely tracking.

[0048] (2) The automatic welding equipment for power battery poles of the present invention transfers the batteries with recorded codes on the second conveyor belt to the turntable through the material transfer mechanism. The turntable is equipped with various processing components. Specifically, the first battery cell polarity detection component detects whether the battery to be welded has a battery cell, and then transmits and records the detection result. The bad battery is subsequently removed by recording the information, and then the battery is flipped over by the first battery breeding component to facilitate the subsequent welding of the battery poles; then, the laser welding component is used to weld the battery poles. After welding, the battery welding appearance detection component is used to perform appearance detection, and then the battery is flipped over again by the second battery flipping component to facilitate the second battery cell polarity detection component to detect the battery cell after welding. Each step is compact and coherent, and rigorous and tight, which effectively improves the detection accuracy and realizes efficient battery welding.

[0049] (3) The power battery pole automatic welding equipment of the present invention unloads the battery through the unloading mechanism, eliminating the need for manual unloading and effectively improving production efficiency.

[0050] To achieve the second objective above, the present invention provides the following technical solutions:

[0051] A welding method of the above-mentioned power battery pole automatic welding equipment is provided, characterized in that it includes the following steps:

[0052] Step 1: attach a recording code to each battery, the loading mechanism loads the battery to the code scanning mechanism, and the code scanning mechanism records the recording code of the battery;

[0053] Step 2: The welding mechanism welds the battery pole, including:

[0054] The material transfer mechanism loads the scanned battery to the C-shaped positioning port of the turntable. The C-shaped positioning port is opened at the edge of the turntable. The C-shaped positioning port positions the battery in each process in the vertical direction. The turntable drives each C-shaped positioning port to rotate by rotating, so that the battery core of the battery faces upward. The turntable rotates and transfers the battery to the station where the first battery core polarity detection component is located. The first battery core polarity detection component detects whether the battery core has a battery core;

[0055] The turntable rotates and causes the battery to flow to the station where the first battery flipping assembly is located, and the first battery flipping assembly flips the battery so that the end where the pole is located faces upward;

[0056] The turntable rotates and transfers the battery to the station where the laser welding assembly is located, and the laser welding assembly welds the battery pole;

[0057] The turntable rotates and transfers the battery to the workstation where the battery welding appearance inspection component is located. The battery welding appearance inspection component observes the battery pole after welding and determines the welding effect. If the welding is poor, it is recorded as a defective welding product.

[0058] The turntable rotates and transfers the battery to the station where the second battery flip assembly is located, and the second battery flip assembly flips the welded battery so that the battery core faces upward;

[0059] The turntable rotates and transfers the battery to the station where the second battery cell polarity detection component is located. The second battery cell polarity detection component detects again whether there is a battery cell in the battery core, and the transfer mechanism unloads the detected battery to the second conveyor belt;

[0060] Step three: the unloading mechanism removes defective products on the second conveyor belt.

[0061] In some embodiments, in step 1, the recording code is a QR code, and the code scanning mechanism is a QR code scanning mechanism; the threaded rod on the first conveyor belt rotates, and the battery is pushed out by the driving force of the threaded rod, and the first rotating plate of the feeding mechanism rotates so that the battery on the first conveyor belt is clamped by the first clamp and transferred to the second conveyor belt, and the second conveyor belt transports the battery to the next process;

[0062] In step 2, the first battery cell polarity detection component and the second battery cell polarity detection component are pressed toward the battery core through a battery cell probe to sense whether the battery core is provided with a battery cell;

[0063] The first battery flip assembly and the second battery flip assembly drive the third clamp to approach the turntable along the slide rail through the frame, and the third clamp clamps the battery on the turntable. Then the frame drives the third clamp with the battery to move backward, and drives the third clamp to flip through the rotating shaft, so as to drive the battery on the third clamp to flip. After the battery is flipped, the frame drives the third clamp to approach the turntable, and the third clamp allows the flipped battery to be placed back on the turntable.

[0064] When welding the battery pole, the positioning sleeve is placed around the outer periphery of the battery end where the battery pole is located, so that during the laser welding process, the nitrogen nozzle on the positioning sleeve provides nitrogen protection to the end of the battery pole and the dust hood on the positioning sleeve performs dust removal.

[0065] The battery welding appearance detection component detects the appearance status of the battery through visual scanning;

[0066] In step three, the recognition component will recognize defective products output by the second conveyor belt, and the recognition component will send the acquired defective product signal to the rejection mechanism, and the rejection mechanism will reject the defective products into the buffer area.

[0067] The welding method of the power battery pole automatic welding equipment of the present invention has the following beneficial effects:

[0068] The welding method of the power battery pole automatic welding equipment of the present invention has various steps which are carried out in an orderly and compact manner, thereby effectively improving the welding quality and ensuring that no defective products are produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 It is a structural schematic diagram of a power battery pole automatic welding device according to a specific embodiment of the present invention.

[0070] Figure 2 It is a schematic structural diagram of a feeding mechanism according to a specific embodiment of the present invention.

[0071] Figure 3 It is a working state diagram of the first rotating plate and the first clamp according to a specific embodiment of the present invention.

[0072] Figure 4 It is a first visual structural schematic diagram of a welding mechanism according to a specific embodiment of the present invention.

[0073] Figure 5 It is a second visual structural schematic diagram of the welding mechanism according to a specific embodiment of the present invention.

[0074] Figure 6 yes Figure 5 A local enlarged schematic diagram of point A in the middle.

[0075] Figure 7 yes Figure 5 A local enlarged schematic diagram of point B in the middle.

[0076] Figure 8 yes Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0077] Fig. 9 yes Figure 5 A local enlarged schematic diagram of point D in the middle.

[0078] Fig.10 It is a schematic structural diagram of the first and second battery flip assemblies according to a specific embodiment of the present invention.

[0079] Fig.11 It is a structural schematic diagram of a material transfer mechanism according to a specific embodiment of the present invention.

[0080] Fig.12 It is a schematic structural diagram of a laser welding assembly according to a specific embodiment of the present invention.

[0081] Fig.13 It is a structural schematic diagram of a tensile test assembly according to a specific embodiment of the present invention.

[0082] Fig.14 It is a structural schematic diagram of a blanking mechanism according to a specific embodiment of the present invention.

[0083] Fig.15 It is a structural schematic diagram of a rejection mechanism according to a specific embodiment of the present invention.

[0084] Fig.16 It is another visual structural schematic diagram of the blanking mechanism of the specific embodiment of the present invention.

[0085] Reference numerals:

[0086] 1. Feeding mechanism;

[0087] 11. First conveyor belt; 12. Second conveyor belt; 13. First rotating plate; 14. First cylinder; 21. First fixture; 16. Threaded rod; 18. Cup holder; 19. Slideway; 20. Loading station;

[0088] 2. Scanning code organization;

[0089] 3. Welding mechanism:

[0090] 31. Turntable; 32. Starting point of rotation; 33. End point of rotation;

[0091] 4. Material transfer mechanism;

[0092] 41. second rotating plate; 42. second clamp; 43. divider;

[0093] 5. First battery cell polarity detection component; 6. Second battery cell polarity detection component;

[0094] 51. bracket; 52. second cylinder; 53. battery probe; 54. battery core; 55. battery cell; pole 92

[0095] 7. First battery flip assembly; 8. Second battery flip assembly;

[0096] 71, frame; 72, rotating shaft; 73, third fixture; 74, first gear; 75, second gear; 76, slide rail

[0097] 9. Laser welding components;

[0098] 91. Laser; 92. Pole; 93. Positioning sleeve; 94. Nitrogen nozzle; 95. Dust hood; 97. Guide rail; 98. Push rod;

[0099] 10. Battery welding appearance inspection components;

[0100] 13. Tensile test assembly; 131. Suction cup; 132. Lifting assembly;

[0101] 17. unloading mechanism; 141. identification component; 142. rejection mechanism; 143. buffer area; 144. defective products; 145. third cylinder; 146. ejector rod; 147. gate; 148 unloading conveyor belt.

[0102] 15. Battery; DETAILED DESCRIPTION

[0103] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0104] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms of "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0105] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0106] Example 1

[0107] The automatic welding equipment for the power battery 15 pole 92 disclosed in this embodiment, Figure 1 , Figure 4 As shown, it includes: a feeding mechanism 1, which is used to feed the battery 15 to the code scanning mechanism 2; the code scanning mechanism 2 is used to record the recording code on each battery 15, so as to facilitate the subsequent tracking of the battery 15.

[0108] The welding mechanism 3 is used to weld the pole 92 of the battery 15 , thereby achieving welding of the pole 92 of the battery 15 .

[0109] The unloading mechanism 17 is used to unload the battery 15 after the pole 92 is welded.

[0110] Wherein, the welding mechanism 3 comprises:

[0111] A turntable 31, the turntable 31 rotates around its axis, and a rotation starting point 32 and a rotation end point 33 are provided in the rotation direction of the turntable 31, the rotation starting point 32 is the upper material position of the turntable 31, and the rotation end point 33 is the lower material position of the turntable 31;

[0112] During operation, the battery 15 is placed on the turntable 31. The function of the turntable 31 is to drive the battery 15 to rotate. During the rotation of the turntable 31, each process processes the battery 15 on the turntable 31. The turntable 31 occupies less space in the length direction, making the processing flow more compact. A through hole is provided in the center of the turntable 31. The through hole is linked to the rotating shaft 72, and the rotating shaft 72 drives the turntable 31 to rotate. In order to better place the battery 15 on the turntable 31, the turntable 31 is set horizontally.

[0113] The processing mechanism includes: a material transfer mechanism 4, a first battery cell 55 detection component 5, a first battery flip component 7, a laser welding component 9, a battery welding appearance detection component 10, a second battery flip component 8 and a second battery cell 55 detection component 6 are arranged in sequence outside the turntable 31 along the direction from the rotation starting point to the rotation end point 33 of the turntable 31.

[0114] Specifically, the material transfer mechanism 4, the first battery cell 55 detection component 5, the first battery flipping component 7, the laser welding component 9, the battery welding appearance detection component 10, the second battery flipping component 8 and the second battery cell 55 detection component 6 are arranged in sequence along the direction from the rotation starting point to the rotation end point 33 of the turntable 31, which effectively limits the processing order of the battery 15, that is, it is processed in sequence through the components in the following processes: material transfer mechanism 4, the first battery cell 55 detection component 5, the first battery flipping component 7, the laser welding component 9, the battery welding appearance detection component 10, the second battery flipping component 8 and the second battery cell 55 detection component 6.

[0115] Among them, the material transfer mechanism 4 is used to transfer the battery 15 and transport the battery 15 after completing each process; the first battery cell 55 detection component 5 is used to perform the first detection on the battery cell 55; the first battery flip component 7 is used to automatically flip the battery 15 after detecting the battery cell 55, so as to facilitate the subsequent welding of the pole 92 of the battery 15; the laser welding component 9 is used to laser weld the battery pole; the battery welding appearance detection component 10 is used to detect the appearance of the battery 15 after welding; the second battery flip component 8 flips the battery 15 after welding; the second battery cell 55 detection group is used to re-detect the battery inner core 54 after welding, and finally the material transfer mechanism 4 unloads the battery 15 on the turntable 31; each processing process is compact and coherent, which improves the detection accuracy, realizes efficient welding of the battery 15, and does not cause the problem of missing parts. It also effectively reduces production costs.

[0116] In this embodiment, Figure 2 , Figure 3 As shown, the feeding mechanism 1 comprises:

[0117] A first conveyor belt 11 and a second conveyor belt 12, wherein the first conveyor belt 11 and the second conveyor belt 12 are arranged side by side;

[0118] A first rotating plate 13 is provided between the first conveyor belt 11 and the second conveyor belt 12. The first rotating plate 13 is hung with a first clamp 21 through a first cylinder 14. The first rotating plate 13 rotates to switch the first clamp 21 to be located above the first conveyor belt 11 or above the second conveyor belt 12. The first clamp 21 transfers the batteries 15 on the first conveyor belt 11 to the batteries 15 on the second conveyor belt 12.

[0119] The battery 15 is placed on the first conveyor belt 11, and the batteries 15 on the first conveyor belt 11 are arranged in sequence. The first rotating plate 13 drives the first clamp 21 to rotate onto the first conveyor belt 11. At this time, the lifting member causes the first clamp 21 to descend, and the first clamp 21 clamps the battery 15 on the first conveyor belt 11. The lifting member rises, and at the same time, the first rotating plate 13 drives the first clamp 21 holding the battery 15 to rotate to the top of the second conveyor belt 12. The lifting member descends again, so that the battery 15 in the first clamp 21 is inserted into the second conveyor belt 12. The first clamp 21 is released to unload the battery 15, and the battery 15 moves at the linear speed of the second conveyor belt 12.

[0120] The functions and benefits of the above-mentioned battery 15 loading mechanism 1 are as follows: the first rotating plate 13 thereof rotates to switch the first clamp 21 to be located above the first conveyor belt 11 or above the unloading conveyor belt 3, and the rotation frequency of the first rotating plate 13 can be used to control the first clamp 21 to move the battery 15 on the first conveyor belt 11 to the second conveyor belt 12 at a predetermined time point, so that the battery 15 can be smoothly and automatically moved from one device to another and meet the working line speed of different devices.

[0121] In this embodiment, Figure 3 As shown, at least two groups of first clamps 21 are hung on the first rotating plate 13 , wherein the two groups of first clamps 21 are correspondingly located above the first conveyor belt 11 and above the second conveyor belt 12 .

[0122] Since at least two groups of first clamps 21 are hung on the first rotating plate 13, the batteries 15 on the first conveyor belt 11 and the batteries 15 on the second conveyor belt 12 can be loaded and unloaded simultaneously, thereby improving production efficiency or adapting to more unloading frequencies.

[0123] In this embodiment, Figure 2 As shown, the first conveyor belt 11 is provided with a threaded rod 16, which rotates around its axis. The threaded rod 16 is opposite to the clamp. The threaded rod 16 and the first clamp 21 are located on both sides of the first conveyor belt 11, and each thread groove of the threaded rod 16 is adapted to a single battery 15.

[0124] Since the threaded rod 16 extends along the length direction of the first conveyor belt 11, a uniform adjustment force will be generated during the rotation of the threaded rod 16, and since the thread groove of the threaded rod 16 is adapted to the battery 15, the threaded rod 16 can be rotated to adjust the position of the battery 15 so that it can be accurately aligned with the first clamp 21, which facilitates the subsequent accurate unloading of the battery 15 and prevents the problem of missing parts.

[0125] In this embodiment, Figure 2 As shown, each of the second conveyor belts 12 is composed of two slideways 19 , and a plurality of cup holders 18 are slidably connected to the slideways 19 , and the cup holders 18 are adapted to the batteries 15 .

[0126] The cup holder 18 is slidably connected to the slide 19, and the battery 15 is placed on the cup holder 18 of the second conveyor belt 12, so that the battery 15 can be effectively positioned according to the positioning of the cup holder 18, so that the battery 15 can be moved as needed.

[0127] Specifically, a slider is connected to the bottom of the cup holder 18, and a protrusion is provided on the side of the slider, and the protrusion is adapted to the slide groove. The slider can effectively limit the movement frequency of the slider through the protrusion and the slide groove, improve the accuracy of the slider movement, and then accurately ensure the movement line speed of the battery 15.

[0128] In this embodiment, Figure 4 , 5 As shown in , 6 and 11, the turntable 31 is arranged on one side of the second conveyor belt 12, and the material transfer mechanism 4 is arranged between the second conveyor belt 12 and the turntable 31;

[0129] The turntable 31 is arranged on one side of the second conveyor belt 12 so that the batteries 15 on the second conveyor belt 12 can be quickly transferred to the second conveyor belt 12, wherein the material transfer mechanism can quickly load the batteries 15 on the second conveyor belt 12 onto the turntable 31, and quickly unload the batteries 15 on the turntable 31 onto the second conveyor belt 12, and the second conveyor belt 12 continues to transport the unloaded batteries 15.

[0130] The material transfer mechanism 4 comprises: a second rotating plate 41, on which at least two sets of second clamps 42 are hung, wherein the at least two sets of second clamps 42 are arranged on opposite sides of the second rotating plate 41.

[0131] Specifically, the second rotating plate 41 is a square rotating plate, and four sets of clamps are hung on the square rotating plate, and the four sets of clamps are symmetrically and equidistantly hung on the second rotating plate 41. When in use, the second rotating plate 41 is driven to rotate by the rotating rod at the center of the second rotating plate 41, and the second rotating plate 41 drives the loading and unloading frequency to be higher. Since the second clamps 42 are hung on the four sides of the square rotating plate, each time the second rotating plate 41 rotates 90°, the loading and unloading can be realized once, which further improves the production efficiency or adapts to a higher production frequency.

[0132] Furthermore, since a plurality of second clamps 42 are mounted on the second rotating plate 41, the second rotating plate 41 drives a group of second clamps 42 to clamp the batteries 15 on the second conveyor belt 12 and load them to the rotation starting point 32 through rotation, and simultaneously drives another group of second clamps 42 to clamp the batteries 15 at the rotation end point 33 and unload them to the second conveyor belt 12, thereby further improving production efficiency.

[0133] The second conveyor belt 12 is provided with a loading station, and a divider 43 is provided below the loading station. When the battery 15 is transferred to the loading station, the lifting shaft of the divider 43 rises and lifts the battery 15 on the loading station to the second clamp 42, and the second clamp 42 loads the battery 15 to the rotation starting point 32.

[0134] The divider 43 is an existing product, and its main function is to accurately raise or lower the lifting shaft according to the set time to achieve timed division and lift the battery 15. Therefore, when the battery 15 is transferred to the loading station, the lifting shaft of the divider 43 rises and lifts the battery 15 on the loading station to the second clamp 42, and the second clamp 42 loads the battery 15 to the rotation starting point 32.

[0135] In this embodiment, Figure 7 As shown, the first battery cell 55 detection component 5 and the second battery cell 55 detection component 6 include:

[0136] The bracket 51 is provided with a second cylinder 52, the telescopic rod of the second cylinder 52 is connected with a battery cell 55 probe 53, and the battery cell 55 probe 53 points to the battery 15 on the turntable 31.

[0137] Specifically, the telescopic head of the second cylinder 52 is downwardly facing with the support of the bracket 51, and the battery cell 55 probe 53 is arranged at the end of the telescopic head of the second cylinder 52. The battery cell 55 probe 53 is driven by the second cylinder 52 to make the battery cell 55 probe 53 approach the battery 15 on the turntable 31 or away from the battery 15 on the turntable 31.

[0138] When in use, when the turntable 31 drives the battery 15 to the battery cell 55 probe 53, the second cylinder 52 drives the battery cell 55 probe 53 to press against the battery inner core 54, and the battery cell 55 probe 53 detects whether there is a battery cell 55 in the battery inner core 54. The battery cell 55 probe 53 senses the presence of the battery cell 55 probe 53 by detecting whether the battery cell 55 is a metal conductor.

[0139] When the turntable 31 drives the battery 15 to the battery cell 55 probe 53 , the second cylinder 52 drives the battery cell 55 probe 53 to press against the battery inner core 54 , and the battery cell 55 probe 53 detects whether there is a battery cell 55 in the battery inner core 54 .

[0140] Exemplarily, the battery 15 is placed upright on the turntable 31 , and the battery cell 55 probe 53 is quickly pressed downward to test whether the battery cell 55 exists.

[0141] In this embodiment, Fig.10 As shown, the first battery flip assembly 7 and the second battery flip assembly 8 include:

[0142] A frame 71, the frame 71 moves closer to or farther from the turntable 31 along a slide rail 76;

[0143] The rotating shaft 72 has one end mounted on the frame 71 and the other end provided with a third clamp 73. When the turntable 31 drives the battery 15 to the third clamp 73, the frame 71 drives the third clamp 73 to move and clamp the battery 15 on the turntable 31. The rotating shaft 72 drives the third clamp 73 holding the battery 15 to flip over, so that the battery 15 flips over.

[0144] When in use, the third clamp 73 is driven by the frame 71 along the slide rail 76 to approach the turntable 31. At this time, the third clamp 73 clamps the battery 15 on the turntable 31. Then, the frame 71 drives the third clamp 73 with the battery 15 to move backward (that is, the third clamp 73 is away from the turntable 31), and the third clamp 73 is driven to flip through the shaft 72, thereby driving the battery 15 on the third clamp 73 to flip. After the battery 15 is flipped, the frame 71 drives the third clamp 73 to approach the turntable 31, and the third clamp 73 puts the flipped battery 15 back onto the turntable 31.

[0145] The rotating shaft 72 is driven to rotate by a driving assembly, and the rotating driving assembly includes a first gear 74 and a second gear 75. The first gear 74 and the second gear 75 are both arranged on the frame 71. The outer end of the rotating shaft 72 is arranged on the second gear 75. The first gear 74 is meshed with the second gear 75. The first gear 74 is connected to a motor.

[0146] When in use, the motor drives the first gear 74 to rotate, and the first and second gears 75 mesh with each other to drive the rotating shaft 72 on the second gear 75 to rotate. In addition, the diameter of the first gear 74 is larger than the diameter of the second gear 75. The large-diameter gear exerts a leverage effect on the small-diameter gear, thereby increasing the rotation speed of the rotating shaft 72 and achieving the effect of reducing energy consumption.

[0147] In this embodiment, Figure 8 , 12 As shown, the laser welding assembly 9 includes:

[0148] A laser 91, the laser 91 is directed toward the battery 15 on the turntable 31, and the laser 91 is used for laser welding the pole 92 of the battery 15;

[0149] The laser 91 provides laser welding to achieve welding of the pole 92 to the end cover of the battery 15 .

[0150] The positioning sleeve 93 is connected to a nitrogen nozzle 94 and a dust hood 95. When the battery pole is laser welded, the positioning sleeve 93 moves and surrounds the outer periphery of the end of the battery 15 where the battery pole is located.

[0151] The positioning sleeve 93 is positioned and shielded at the periphery of the end of the battery 15, so that the laser energy is concentrated at the periphery of the end of the battery 15; and, with the help of the positioning sleeve 93, the present application installs a nitrogen nozzle 94 and a dust hood 95, so that nitrogen can be replenished and dust can be removed in a small space for laser welding in a timely manner, ensuring that the laser can perform precise welding and avoiding air dust and oxygen from affecting the welding effect.

[0152] In this embodiment, Figure 8 , 12 As shown, the laser welding assembly 9 also includes a fixing frame.

[0153] The laser 91 is disposed on the top of the fixing frame, a vertical guide rail 97 is disposed below the laser 91 , the positioning sleeve 93 is disposed on the guide rail 97 , and the positioning sleeve 93 moves along the guide rail 97 to surround or detach from the outer periphery of the end of the battery 15 .

[0154] The fixing frame is used to install the laser 91, and the guide rail 97 facilitates the positioning sleeve 93 to move to the outer periphery of the end of the battery 15 to achieve automatic movement. In an exemplary manner, the guide rail 97 is arranged vertically, and the battery 15 is also arranged vertically, and the positioning sleeve 93 moves along the guide rail 97 in the vertical direction, so that the positioning sleeve 93 is directly sleeved on the end of the battery 15 or directly detached from the end of the battery 15.

[0155] Furthermore, a lifting push rod 98 is provided at the bottom of the turntable 31, and the lifting push rod 98 can lift the battery 15 that has reached the laser welding station, so as to facilitate welding by the welding mechanism 3. The specific structure of the lifting push rod 98 is as follows: a cylinder is provided under the turntable 31, and the cylinder is connected to the push rod 98. At the same time, the turntable 31 is provided with a positioning port for the push rod 98 to extend, wherein the battery 15 is positioned on the positioning port, and the cylinder drives the push rod 98 to lift the battery 15 on the positioning port, thereby lifting the battery 15, which is convenient for the laser 91 to perform laser welding.

[0156] In this embodiment, Figure 4 , 13 As shown, it also includes a tensile test assembly 13 for testing the filling tightness of the battery core 54, and the tensile test assembly 13 includes:

[0157] A lifting component 132 is provided with a suction cup 131 on the top of the lifting component 132. The lifting component 132 drives the suction cup 131 to move closer to or away from the top of the battery 15. The suction cup 131 tests the tightness of the battery core 54 filled in the battery shell 15 by sucking the battery core 54.

[0158] It is necessary to test the tightness of the entire battery 15, otherwise the battery 15 is prone to problems. For this reason, after the battery 15 is output, it is also necessary to test the filling tightness of the battery core 54, wherein the tension test assembly 13 sucks the battery core 54704 through the suction force of the suction cup 131 to achieve the test of the filling tightness of the battery core 54.

[0159] Furthermore, the lifting component 132 includes a support frame, and the suction cup 131 is set on the top of the support frame. The suction cup 131 is fixedly pointed downward. The lifting component 132 also includes a lifting rod, and the lifting rod is connected to a clamping claw. The lifting rod drives the clamping claw to clamp the battery 15 and then lifts the battery 15 to the suction cup 131, and the suction cup 131 sucks the battery core 54.

[0160] Furthermore, a plurality of laser welding assemblies 9 are arranged on the turntable 31. Since the welding process of the laser welding assemblies 9 is relatively slow, the plurality of laser welding assemblies 9 can simultaneously weld a plurality of battery groups 15 without slowing down the operation speed of other workstations, thereby helping to improve the detection efficiency.

[0161] In this embodiment, Fig.14 , 15 As shown in 16, the feeding mechanism 17 comprises:

[0162] An identification component 141, wherein the identification component 141 identifies defective products 144 outputted from the second conveyor belt 12;

[0163] A rejecting mechanism 142 , which is connected to the identification component 141 and rejects defective products 144 on the second conveyor belt 12 to a buffer area 143 for storing the defective products 144 ;

[0164] The second conveyor belt 12 outputs the battery 15 , and the identification component 141 identifies the bad battery 15 . The rejection mechanism 142 learns the bad battery 15 through the identification component 141 and rejects the bad battery 15 to the buffer area 143 .

[0165] The identification component 141 includes an identification code and a barcode scanner. Each battery 15 is provided with an independent recording code. The barcode scanner is connected to a detection component. The barcode scanner identifies the recording code of the defective product 144 according to the detection information of the detection component.

[0166] The aforementioned battery cell 55 detection component and appearance detection component are used to detect whether the battery 15 is a defective battery 15. If it is a defective product 144, the detection component records the record code of the defective product 144. When the barcode scanner scans the record code, if the battery 15 is identified as a defective product 144, it is rejected by the rejection mechanism 142.

[0167] The rejection mechanism 142 includes a third cylinder 145 , and a telescopic rod of the third cylinder 145 translates the defective products 144 to the buffer area 143 ;

[0168] The code scanner is arranged on the third cylinder 145.

[0169] Since the barcode scanner is used to detect whether there are defective products 144, and the rejection mechanism 142 is used to reject the defective products 144, the barcode scanner and the third cylinder 145 are arranged together to conveniently, quickly and accurately reject the defective products 144.

[0170] The second conveyor belt 12 transfers the battery to the discharge conveyor belt 148 through a clamp. Fig.16 The ejector rod 146 is provided on one side of the discharge conveyor belt 148, and a gate plate 147 is provided on the other side of the discharge conveyor belt 148. The gate plate 147 is opposite to the ejector rod 146 and is movable in linkage. When the ejector rod 146 translates the defective product 144, the gate plate 147 opens.

[0171] Example 2

[0172] The welding method of the power battery pole automatic welding device described in the embodiment disclosed in this embodiment includes the following steps:

[0173] Step 1: attach a recording code to each battery 15, the feeding mechanism 1 feeds the battery 15 to the code scanning mechanism 2, and the code scanning mechanism 2 records the recording code of the battery 15;

[0174] The recording code is attached to the battery 15 , and the code scanning mechanism 2 is used to enter the corresponding recording code on the battery 15 .

[0175] Step 2: The welding mechanism 3 welds the pole 92 of the battery 15, including:

[0176] The transfer mechanism 4 loads the scanned battery 15 to the C-shaped positioning opening of the turntable 31. The C-shaped positioning opening is opened at the edge of the turntable 31, so that the C-shaped positioning opening has a gap, which is convenient for taking the battery 15 out of the C-shaped positioning opening.

[0177] The C-shaped positioning openings enable the batteries 15 in each process to be positioned in the vertical direction. The turntable 31 drives the C-shaped positioning openings to rotate by rotating, so that the battery core 54 of the battery 15 faces upward. The turntable 31 rotates and causes the battery 15 to flow to the station where the first battery core 55 detection assembly 5 is located. The first battery core 55 detection assembly 5 detects whether the battery core 54 has a battery cell 55.

[0178] The turntable 31 rotates and transfers the battery 15 to the station where the first battery flip assembly 7 is located. The first battery flip assembly 7 flips the battery 15 so that the end of the pole 92 is facing upward.

[0179] Since the battery cell 55 needs to be inspected before, but the end of the battery cell 55 is not where the pole 92 is set, it is necessary to use the first battery flip assembly 7 to flip the battery 15 so that the end where the pole 92 is set faces upward, so that it is convenient to directly weld the pole 92 at the end where the pole 92 is set.

[0180] The turntable 31 rotates and transfers the battery 15 to the station where the laser welding assembly 9 is located, and the laser welding assembly 9 welds the battery 15 pole 92;

[0181] The laser welding assembly 9 provides laser energy to weld the pole 92 .

[0182] The rotating disk 31 rotates and transfers the battery 15 to Fig. 9 The workstation where the battery welding appearance inspection component 10 is located is shown. The battery welding appearance inspection component 10 observes the battery pole after welding to determine the welding effect. If the welding is poor, it is recorded as a defective welding product 144;

[0183] The battery welding appearance inspection component 10 is mainly used to inspect the appearance of the battery pole, and visually observe whether the welding appearance meets the requirements. When the welding is poor, it is recorded, and if the bad battery 15 is read later, the battery 15 is discarded. Regarding the method of recording the bad battery 15, specifically: when it is detected that the battery 15 is a bad welding product 144, the recording code of the bad product 144 battery 15 is read, so that the battery 15 is known to be a bad product 144, and then the bad product 144 battery 15 is screened out.

[0184] The turntable 31 rotates and transfers the battery 15 to the station where the second battery flip assembly 8 is located. The second battery flip assembly 8 flips the welded battery 15 so that the battery core 54 faces upward.

[0185] After welding the pole 92 and detecting the welding effect, the battery 15 is turned over by the second battery turning assembly 8 to ensure that the battery cell 55 of the battery 15 is stably arranged, so that the battery cell 55 of the battery 15 faces upward again, thereby detecting again whether the battery cell 55 exists, avoiding the problem of the battery cell 55 falling downward when the battery 15 is welded on the pole 92, and ensuring the quality of the battery 15. At the same time, the end of the battery 15 without the end cover is facing upward, and the end of the battery pole is facing downward, so as to avoid the battery 15 from falling downward, and facilitate the subsequent processing of the battery 15.

[0186] The turntable 31 rotates and transfers the battery 15 to the station where the second battery cell 55 detection component 6 is located. The second battery cell 55 detection component 6 detects again whether the battery core 54 has a battery cell 55. The transfer mechanism 4 unloads the detected battery 15 to the second conveyor belt 12.

[0187] After the battery 15 is turned over, the battery 15 can be further inspected to see whether the battery cell 55 exists.

[0188] Step three: the unloading mechanism 17 removes the defective products 144 on the second conveyor belt 12 .

[0189] In this embodiment, in the step 1, the recording code is a QR code, and the code scanning mechanism 2 is a QR code scanning mechanism 2; the threaded rod 16 on the first conveyor belt 11 rotates, and the battery 15 is pushed out by the driving force of the threaded rod 16, and the first rotating plate 13 of the feeding mechanism 1 rotates so that the battery 15 on the first conveyor belt 11 is clamped by the first clamp 21 and transferred to the second conveyor belt 12, and the second conveyor belt 12 transports the battery 15 to the next process;

[0190] The two-dimensional code is a common recording code and is easy to read. The battery 15 on the first conveyor belt 11 can be pushed out simultaneously during the rotation of the threaded rod 16 .

[0191] In the step 2, the first battery cell 55 detection component 5 and the second battery cell 55 detection component 6 press the battery core 54 through the battery cell 55 probe 53 to sense whether the battery core 54 is provided with a battery cell 55;

[0192] Since the battery cell 55 is made of a metal conductor, the battery cell 55 probe 53 can detect whether the battery core 54 has a battery cell 55 by detecting whether the end surface of the battery core 54 has a metal conductor.

[0193] The first battery flip assembly 7 and the second battery flip assembly 8 drive the third clamp 73 to approach the turntable 31 along the slide rail 76 through the frame 71, and the third clamp 73 clamps the battery 15 on the turntable 31. Then, the frame 71 drives the third clamp 73 clamped with the battery 15 to move backward, and drives the third clamp 73 to flip through the rotating shaft 72, so as to drive the battery 15 on the third clamp 73 to flip. After the battery 15 flips, the frame 71 drives the third clamp 73 to approach the turntable 31, and the third clamp 73 places the flipped battery 15 back on the turntable 31;

[0194] Since the frame 71 is set on the slide rail 76, the frame 71 is moved on the slide rail 76 so that the frame 71 is close to the turntable 31 or away from the turntable 31, and since the third clamp 73 is connected to the frame 71 through the rotating shaft 72, the moving frame 71 moves the third clamp 73 so that the third clamp 73 is close to the battery 15 on the turntable 31, and the third clamp 73 clamps the battery 15 on the turntable 31. After clamping the battery 15, the battery 15 is taken out from the notch of the C-shaped positioning port, so that the battery 15 is flipped outside the turntable 31. After flipping, the frame 71 drives the third clamp 73 to approach the turntable 31 again, and the third clamp 73 places the battery 15 on the turntable 31, so that the battery 15 on the turntable 31 is flipped, so that the end of the pole 92 facing upward after flipping is welded.

[0195] When welding the battery pole, the positioning sleeve 93 is placed around the outer periphery of the end of the battery 15 where the battery pole is located, so that during the laser welding process, the nitrogen nozzle 94 on the positioning sleeve 93 provides nitrogen protection to the end of the battery pole and the dust cover 95 on the positioning sleeve 93 performs dust removal.

[0196] By moving the positioning sleeve 93, the positioning sleeve 93 can be looped around the outer periphery of the battery 15 end. In actual operation, by setting the positioning sleeve 93 on the guide rail 97, the positioning sleeve 93 can be moved along the guide rail 97 to be looped around the end of the battery 15 or away from the end of the battery 15. Then, the nitrogen and dust hood 95 on the positioning sleeve 93 are processed during laser welding. The nitrogen plays a protective and isolating role in removing oxygen, and the dust hood 95 efficiently absorbs the dust generated during the laser welding process to ensure the welding effect.

[0197] The battery welding appearance detection assembly 10 detects the appearance status of the battery 15 by visual scanning;

[0198] In step three, the recognition component 141 will recognize the defective products 144 output by the second conveyor belt 12 , and the recognition component 141 will send the signal of the defective products 144 to the rejection mechanism 142 , and the rejection mechanism 142 will reject the defective products 144 to the buffer area 143 .

[0199] The identification component 141 stores and records the information of the defective products 144 . When the defective products 144 are transmitted to the identification component 141 , the identification component 141 immediately identifies the corresponding defective products 144 and removes the defective products 144 .

[0200] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0201] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0202] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0203] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power battery pole automatic welding equipment, characterized in that: include: A feeding mechanism, used for feeding the batteries to the code scanning mechanism, and the code scanning mechanism is used for recording the recording code on each battery; A welding mechanism, used for welding the battery poles; A feeding mechanism is used to feed the battery after the poles are welded; Wherein, the welding mechanism includes: a turntable and a processing mechanism, The turntable rotates around its axis, and the direction of rotation of the turntable is provided with a rotation starting point and a rotation end point, the rotation starting point is the upper material position of the turntable, and the rotation end point is the lower material position of the turntable; The processing mechanism includes a material transfer mechanism, a first battery cell polarity detection component, a first battery flip component, a laser welding component, a battery welding appearance detection component, a second battery flip component and a second battery cell polarity detection component, which are arranged in sequence from the rotation starting point to the rotation end point of the turntable outside the turntable; the feeding mechanism includes: a first conveyor belt and a second conveyor belt, wherein the first conveyor belt and the second conveyor belt are arranged side by side; A first rotating plate is provided between the first conveyor belt and the second conveyor belt, and a first clamp is hung on the first rotating plate through a first cylinder. The first rotating plate switches the first clamp to be located above the first conveyor belt or above the second conveyor belt by rotating, and the first clamp transfers the batteries on the first conveyor belt to the second conveyor belt; a threaded rod is provided on the first conveyor belt, and the threaded rod rotates around its axis, and the threaded rod is opposite to the first clamp, and the threaded rod and the first clamp are respectively located on both sides of the first conveyor belt, and each thread groove of the threaded rod is adapted to a single battery; the turntable is provided on one side of the second conveyor belt, and the material transfer mechanism is provided between the second conveyor belt and the turntable; The material transfer mechanism comprises: a second rotating plate, the second rotating plate is hung with at least two sets of second clamps, wherein the at least two sets of second clamps are arranged on opposite sides of the second rotating plate. The second rotating plate drives a group of second clamps to clamp the battery loading on the second conveyor belt to the rotation starting point by rotating, and drives another group of second clamps to clamp the battery loading at the rotation end point to the second conveyor belt; The second conveyor belt is provided with a loading station, and a divider is provided below the loading station. When the battery is transferred to the loading station, the lifting shaft of the divider rises and lifts the battery on the loading station to the second clamp, and the second clamp loads the battery to the rotation starting point; The first battery cell polarity detection component and the second battery cell polarity detection component include: A bracket, wherein a second cylinder is disposed on the bracket, a telescopic rod of the second cylinder is connected to a battery probe, and the battery probe points to the battery on the turntable, When the turntable drives the battery to the battery cell probe, the second cylinder drives the battery cell probe to press against the battery core, and the battery cell probe detects whether there is a battery cell in the battery core.

2. The power battery pole automatic welding equipment according to claim 1, characterized in that: The first rotating plate is hung with at least two groups of first clamps, wherein the two groups of first clamps are correspondingly located above the first conveyor belt and above the second conveyor belt.

3. The power battery pole automatic welding equipment according to claim 2, characterized in that: The second conveyor belt is composed of two slideways, and a plurality of cup holders are slidably connected to the slideways, and the cup holders are adapted to the batteries.

4. The power battery pole automatic welding equipment according to claim 3 is characterized in that: The first battery flip assembly and the second battery flip assembly include: A rack, the rack moving closer to or farther away from the turntable along a slide rail; A rotating shaft, one end of which is mounted on the frame, and the other end of which is provided with a third clamp. When the turntable drives the battery to the third clamp, the frame drives the third clamp to move and clamp the battery on the turntable, and the rotating shaft drives the third clamp holding the battery to flip over, thereby flipping the battery.

5. The power battery pole automatic welding equipment according to claim 4, characterized in that: The laser welding assembly comprises: A laser, the laser is directed toward the battery on the turntable, and the laser is used for laser welding of battery poles; A positioning sleeve is connected to a nitrogen nozzle and a dust hood. When laser welding a battery pole, the positioning sleeve moves and surrounds the periphery of the battery end where the battery pole is located.

6. The power battery pole automatic welding equipment according to claim 5, characterized in that: The laser welding assembly also includes a fixing frame, The laser is arranged on the top of the fixing frame, a vertical guide rail is arranged below the laser, the positioning sleeve is arranged on the guide rail, and the positioning sleeve approaches or leaves the outer periphery of the battery end along the guide rail.

7. The power battery pole automatic welding equipment according to claim 6, characterized in that: It also includes a tensile test assembly for testing the filling tightness of the battery core, and the tensile test assembly includes: A lifting component is provided with a suction cup on the top of the lifting component, and the lifting component drives the suction cup to move closer to or away from the top of the battery. The suction cup tests the tightness of the battery core filled in the battery shell by sucking the battery core.

8. The power battery pole automatic welding equipment according to claim 7, characterized in that: The unloading mechanism comprises: an identification component, the identification component identifying defective products outputted on the second conveyor belt; A rejecting mechanism, the rejecting mechanism is connected to the identification component and rejects defective products on the second conveyor belt to a buffer area for storing defective products; The identification component includes an identification code and a barcode scanner. Each product is provided with an independent identification code. The barcode scanner is connected to a detection component. The barcode scanner identifies the identification code of a defective product according to the detection information of the detection component. The rejection mechanism includes a third cylinder, and a telescopic rod of the third cylinder translates defective products to the buffer area; The code scanner is arranged on the third cylinder; A discharge conveyor belt is provided on one side of the second conveyor belt, an ejector rod is provided on one side of the discharge conveyor belt, and a gate plate is provided on the other side of the discharge conveyor belt. The gate plate is opposite to the ejector rod and is movably linked. When the ejector rod translates defective products, the gate plate opens.

9. A welding method for the power battery pole automatic welding equipment according to claim 8, characterized in that: The following steps are involved: Step 1: attach a recording code to each battery, the loading mechanism loads the battery to the code scanning mechanism, and the code scanning mechanism records the recording code of the battery; Step 2: The welding mechanism welds the battery pole, including: The material transfer mechanism loads the scanned battery to the C-shaped positioning port of the turntable. The C-shaped positioning port is opened at the edge of the turntable. The C-shaped positioning port positions the battery in each process in the vertical direction. The turntable drives each C-shaped positioning port to rotate by rotating, so that the battery core of the battery faces upward. The turntable rotates and transfers the battery to the station where the first battery core polarity detection component is located. The first battery core polarity detection component detects whether the battery core has a battery core; The turntable rotates and causes the battery to flow to the station where the first battery flipping assembly is located, and the first battery flipping assembly flips the battery so that the end where the pole is located faces upward; The turntable rotates and transfers the battery to the station where the laser welding assembly is located, and the laser welding assembly welds the battery pole; The turntable rotates and transfers the battery to the workstation where the battery welding appearance inspection component is located. The battery welding appearance inspection component observes the battery pole after welding and determines the welding effect. If the welding is poor, it is recorded as a defective welding product. The turntable rotates and transfers the battery to the station where the second battery flip assembly is located, and the second battery flip assembly flips the welded battery so that the battery core faces upward; The turntable rotates and transfers the battery to the station where the second battery cell polarity detection component is located. The second battery cell polarity detection component detects again whether there is a battery cell in the battery core, and the transfer mechanism unloads the detected battery to the second conveyor belt; Step three: the unloading mechanism removes defective products on the second conveyor belt.

10. The welding method of the power battery pole automatic welding equipment according to claim 9, characterized in that: In step 1, the recording code is a QR code, and the code scanning mechanism is a QR code scanning mechanism; the threaded rod on the first conveyor belt rotates, and the battery is pushed out by the driving force of the threaded rod, and the first rotating plate of the feeding mechanism rotates so that the battery on the first conveyor belt is clamped by the first clamp and transferred to the second conveyor belt, and the second conveyor belt transports the battery to the next process; In step 2, the first battery cell polarity detection component and the second battery cell polarity detection component are pressed toward the battery core through a battery cell probe to sense whether the battery core is provided with a battery cell; The first battery flip assembly and the second battery flip assembly drive the third clamp to approach the turntable along the slide rail through the frame, and the third clamp clamps the battery on the turntable. Then the frame drives the third clamp with the battery to move backward, and drives the third clamp to flip through the rotating shaft, so as to drive the battery on the third clamp to flip. After the battery is flipped, the frame drives the third clamp to approach the turntable, and the third clamp allows the flipped battery to be placed back on the turntable. When welding the battery pole, the positioning sleeve is placed around the outer periphery of the battery end where the battery pole is located, so that during the laser welding process, the nitrogen nozzle on the positioning sleeve provides nitrogen protection to the end of the battery pole and the dust hood on the positioning sleeve performs dust removal. The battery welding appearance detection component detects the appearance status of the battery through visual scanning; In step three, the recognition component will recognize defective products output by the second conveyor belt, and the recognition component will send the acquired defective product signal to the rejection mechanism, and the rejection mechanism will reject the defective products into the buffer area.

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