Battery module welding equipment

Abstract

The utility model provides a battery module welding device which comprises a rack, a welding station, a welding platform and a welding platform. The two battery cell pressing devices are arranged on the rack and located above the two sides of the welding station respectively, each battery cell pressing device comprises a first cross beam and a pressing assembly, the first cross beam is arranged on the rack in a liftable and movable mode in the first direction and is arranged in the second direction, the pressing assembly is arranged on the first cross beam, and the first cross beam and the second cross beam can move in the first direction. The pressing assembly can translate along a second direction so as to correspond to the position of a pole of the battery module; the measuring device comprises a second cross beam and a measuring instrument, the second cross beam is movably arranged on the rack in the first direction, the second cross beam is located between the two first cross beams, the length of the second cross beam is arranged in the second direction, and the measuring instrument is arranged on the second cross beam and can translate in the second direction to measure data of a pole on one side of the battery module; and a flying welding device. According to the battery module welding equipment, the pole columns on the two sides can be continuously welded, and the welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser processing, and more particularly to a battery module welding device. BACKGROUND

[0002] In the related art, a flying welding technology is used to weld the cell poles and the B-pieces of a battery module. After the cell module is positioned, a flying welding robot takes a picture to identify the poles on one side of the battery module, and then welds the poles on the one side in turn. After welding on one side, the poles on the other side are identified by taking a picture, and then welded. The welding of the poles on both sides needs to be spaced to take pictures, which reduces the welding efficiency. CONTENT OF THE UTILITY MODEL

[0003] The application embodiment provides a battery module welding device, which can continuously weld the poles on both sides and improve the welding efficiency.

[0004] The technical scheme adopted by the application embodiment is to provide a battery module welding device, which comprises:

[0005] A rack is provided with a welding station, and a carrying robot carrying a battery module can move to the welding station;

[0006] Two cell pressing devices are provided above both sides of the welding station, and the cell pressing device comprises a first beam and a pressing assembly, the first beam is movably arranged on the rack along a first direction, the length of the first beam is arranged along a second direction, the first direction, the second direction and the height direction form an angle with each other, the pressing assembly is arranged on the first beam, and the pressing assembly can translate along the second direction to correspond to the position of the poles of the battery module;

[0007] A measuring device comprises a second beam and a measuring instrument, the second beam is movably arranged on the rack along the first direction, the second beam is located between the two first beams, the length of the second beam is arranged along the second direction, and the measuring instrument is arranged on the second beam, the measuring instrument can translate along the second direction to measure the data of the poles on one side of the battery module;

[0008] A flying welding device comprises a robot, a camera assembly and a galvanometer assembly, the robot is arranged on one side of the rack, and the camera assembly and the galvanometer assembly are arranged on the operating end of the robot.

[0009] Further, the cell pressing device further comprises:

[0010] A first moving module is movably arranged on the rack along the first direction;

[0011] a lifting module, the lifting module being arranged on the first moving module in a liftable manner, and the first cross beam being arranged on the lifting module.

[0012] Further, the first moving module comprises:

[0013] a first moving seat, which is arranged on the rack in a slidable manner along the first direction;

[0014] a first rack, which is arranged on the rack and extends along the first direction;

[0015] a first gear, which is arranged on the first moving seat in a rotatable manner and is engaged with the first rack;

[0016] a first driver, which is connected with the first gear and is capable of driving the first gear to rotate.

[0017] Further, the lifting module comprises:

[0018] a first lifting seat, which is arranged on the first moving seat in a slidable manner along a height direction;

[0019] a screw rod, which is arranged on the first lifting seat in a rotatable manner along the height direction;

[0020] a nut, which is arranged on the first moving seat and is matched with the screw rod;

[0021] a second driver, which is connected with the screw rod and is capable of driving the screw rod to rotate.

[0022] Further, the pressing assembly comprises:

[0023] a second moving seat, which is arranged on the first cross beam in a movable manner along the second direction;

[0024] a second lifting seat, which is arranged on the second moving seat in a slidable manner along the height direction;

[0025] an adjusting seat, which is arranged on a bottom of the second lifting seat in a slidable manner along the first direction;

[0026] a plurality of pressing heads, each of which is arranged on the bottom of the adjusting seat in a spaced manner along the second direction, each of which corresponds to a position of each pole column of one side of the battery module, and each of which is provided with a via hole for laser to pass through;

[0027] a third driver, which is arranged on the second moving seat and is connected with the second lifting seat to drive the second lifting seat to lift;

[0028] a fourth driver, which is arranged on the lifting seat and is connected with the adjusting seat to drive the adjusting seat to move along the first direction.

[0029] Further, the pressing assembly further comprises a second moving module, the second moving module comprising:

[0030] a second rack arranged on the first cross beam and extending along the second direction;

[0031] a second gear rotatably arranged on the second moving base and engaged with the second rack;

[0032] a fifth driver connected to the second gear and capable of driving the second gear to rotate.

[0033] Further, the measuring device further comprises a third moving module, the third moving module comprising:

[0034] a third moving base slidably arranged on the rack along the first direction;

[0035] a third rack arranged on the rack and extending along the first direction;

[0036] a third gear rotatably arranged on the third moving base and engaged with the third rack;

[0037] a sixth driver connected to the third gear and capable of driving the third gear to rotate.

[0038] Further, the battery module welding device further comprises a guiding and positioning device, the guiding and positioning device comprising:

[0039] a guiding assembly comprising two spaced guiding strips, a channel along the first direction being formed between the two guiding strips, the carrying robot being capable of passing through the channel, and the welding station being located in the channel;

[0040] a blocking mechanism comprising a blocking member and a seventh driver, the blocking member being arranged behind the welding station along the advancing direction of the carrying robot, the seventh driver being capable of driving the blocking member to extend and insert into the channel to block the carrying robot, or driving the blocking member to retract and exit the channel;

[0041] a jacking and positioning mechanism comprising a column, a positioning pin and an eighth driver, the column being arranged on the floor and located at one side of the channel, the positioning pin being arranged on the column in a liftable manner and corresponding to the position of the pin hole on the carrying robot on the welding station, and the eighth driver being capable of driving the positioning pin to lift.

[0042] Further, the jacking and positioning mechanism further comprises:

[0043] a roller rotatably arranged on the lower end of the positioning pin;

[0044] A wedge is slidably arranged on the floor, the roller is located on the moving path of the wedge, the wedge is connected with the eighth driver, the wedge has an inclined surface and a flat end surface connected with the upper end of the inclined surface, and the eighth driver can drive the wedge to move so that the roller sequentially rolls and contacts the inclined surface and the flat end surface to lift the positioning pin.

[0045] Further, the measuring instrument is a profilometer.

[0046] The battery module welding equipment provided by the embodiment of the application has the beneficial effects that in the battery module welding equipment, the cell pressing devices are respectively arranged above the two sides of the welding station, the first cross beam can move in different directions and be lifted and lowered, and the pressing assembly can translate, so that the pressing operation can be quickly and accurately performed on the position corresponding to the pole of the battery module. The second cross beam of the measuring device is arranged between the first cross beams of the two cell pressing devices and can move in the first direction, and the measuring instrument translates in the second direction, so that the pole on one side of the battery module can be welded by the flying welding device while the pole on the other side is measured, the parallel operation of the measuring and welding processes is realized, the time waste caused by waiting for photographing and identification of the pole on the other side after welding of the pole on one side is avoided in the prior art, and the welding efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0048] Figure 1 The three-dimensional structure schematic diagram of the battery module welding equipment provided by the embodiment of the application is shown in the figure.

[0049] Figure 2 The schematic diagram of the cell pressing device provided by the embodiment of the application installed on the first cross beam is shown in the figure.

[0050] Figure 3 The schematic diagram of the measuring device provided by the embodiment of the application installed on the second cross beam is shown in the figure.

[0051] Figure 4 The structure schematic diagram of the flying welding device provided by the embodiment of the application is shown in the figure.

[0052] Figure 5 The pressing assembly and the second moving module provided by the embodiment of the application are shown in the figure.

[0053] Figure 6 The guiding and positioning device provided by the embodiment of the application is shown in the figure.

[0054] Figure 7 The structural schematic diagram of the jacking positioning mechanism provided by the embodiment of the present application is shown in the figure.

[0055] In the figure, the reference signs are as follows:

[0056] 10, rack; 11, welding station;

[0057] 20, cell pressing device; 21, first cross beam; 211, first moving module; 2111, first moving seat; 21111, first rack; 21112, first gear; 21113, first driver; 212, lifting module; 2121, first lifting seat; 2122, screw rod; 2123, nut; 2124, second driver; 213, pressing assembly; 2131, second moving seat; 21311, second moving module; 213111, second rack; 213112, second gear; 213113, fifth driver; 2132, second lifting seat; 2133, adjusting seat; 21331, fourth driver; 2134, pressing head; 21341, via hole; 2135, third driver;

[0058] 30, measuring device; 31, second cross beam; 32, measuring instrument; 321, third moving module; 3211, third moving seat; 3212, third gear; 3213, sixth driver; 32111, third rack;

[0059] 40, flying welding device; 41, robot; 42, camera assembly; 43, galvanometer assembly;

[0060] 50, guiding and positioning device; 51, guiding assembly; 511, guiding strip; 512, channel; 52, blocking mechanism; 521, blocking piece; 522, seventh driver; 53, jacking positioning mechanism; 531, stand; 532, positioning pin; 533, roller; 534, wedge block; 535, eighth driver; 536, lifting platform;

[0061] X, second direction; Y, first direction; Z, height direction. DETAILED DESCRIPTION

[0062] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the figures and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0064] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0065] In addition, the terms "first", "second", "third", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0066] Please refer to Figure 1 , the battery module welding equipment provided by the embodiment of the present application will be described. The battery module welding equipment provided by the embodiment of the present application comprises a rack 10, two cell pressing devices 20, a measuring device 30 and a flying welding device 40.

[0067] Among them, referring to Figure 1 , the rack 10 is provided with a welding station 11, and the carrying robot 41 carrying the battery module can move to the welding station 11. The rack 10 is the basic frame of the whole battery module welding equipment, which provides support and mounting position for other components. The rack 10 is internally provided with a special welding station 11 (specifically in the middle area below the rack 10), which is a specific position for battery module welding operation. During the whole welding process, the carrying robot 41 carrying the battery module will carry the battery module and move to this welding station 11 for subsequent welding operation. For example, the rack 10 is specifically a gantry, which has sufficient strength and stability to ensure that it will not deform or shift during the welding process due to vibration or operating force of the equipment. Among them, the carrying robot 41 can be an AGV trolley.

[0068] Referring to Figure 1 and Figure 2, two said cell pressing devices 20 are arranged on the rack 10 and are located above the welding stations 11 on both sides respectively, the cell pressing device 20 comprises a first beam 21 and a pressing assembly 213, the first beam 21 is arranged on the rack 10 and is movable along the first direction Y, the length of the first beam 21 is arranged along the second direction X, the first direction Y, the second direction X and the height direction Z are at an angle with each other, the pressing assembly 213 is arranged on the first beam 21, and the pressing assembly 213 can be translated along the second direction X to correspond to the position of the pole of the battery module. The angle between any two of the first direction Y, the second direction X and the height direction Z can be 90°.

[0069] Two cell pressing devices 20 are symmetrically mounted on the rack 10 and located above the welding stations 11 on both sides.

[0070] Referring to Figure 2 , the first beam 21 is a long strip-shaped metal structure, and the length is arranged along the second direction X (for example, the left-right direction of the device, X axis). The first beam 21 is movably mounted on the rack 10 along the first direction Y (for example, the front-back direction of the device, Y axis), and is driven by a motor through the cooperation of a linear guide rail and a sliding block, so that the first beam 21 can move smoothly in this direction. At the same time, the first beam 21 also has a lifting function, which can be realized by a cylinder, an electric push rod or a screw rod 2122 transmission, which helps to adjust the height position of the pressing assembly 213.

[0071] Referring to Figure 2 and Figure 5 , the pressing assembly 213 is mounted on the first beam 21, which is a device capable of pressing the cell. When the cell needs to be pressed, the pressing assembly 213 is translated along the second direction X, so that the pressing block corresponds to the position of the pole of the battery module, and then the pressing block applies pressure to the cell, so that the previously placed B sheet on the battery module is pressed with the pole, and the B sheet and the pole are kept stable during the welding process to prevent the position from shifting. The pressing block can be a metal block with certain elasticity, which can avoid damaging the cell and ensure sufficient pressure to stabilize the cell for smooth subsequent welding operation.

[0072] Referring to Figure 1 and Figure 3 , the measuring device 30 comprises a second beam 31 and a measuring instrument 32, the second beam 31 is movably arranged on the rack 10 along the first direction Y, the second beam 31 is located between the two first beams 21, the length of the second beam 31 is arranged along the second direction X, the measuring instrument 32 is arranged on the second beam 31, and the measuring instrument 32 can be translated along the second direction X to measure the data of the pole on one side of the battery module.

[0073] The measuring device 30 is mainly used to measure the relevant data of the battery module side post during the welding process, providing accurate data support for the welding operation.

[0074] Referring to Figure 3 , the second cross beam 31 is a long strip-shaped metal structure movably mounted on the rack 10 along the first direction Y (for example, the front-back direction of the device, Y axis) between the first cross beams 21 of the two cell pressing devices 20. The second cross beam 31 is moved accurately along the front-back direction (Y axis) by high-precision linear guide rails and sliding blocks, and a corresponding motor drive system (such as a servo motor, a gear and a rack mechanism). The length of the second cross beam 31 is arranged along the second direction X (for example, the left-right direction, X axis), providing a basis for the installation and movement of the measuring instrument 32.

[0075] Referring to Figure 3 , the measuring instrument 32 is installed on the second cross beam 31, which can be a profilometer. The measuring instrument 32 can be translated along the left-right direction (X axis) by its own guide rails and motor drive system, so that it can measure the position, height and spacing of the posts at different positions, and ensure the integrity and accuracy of the measurement data.

[0076] Referring to Figure 1 and Figure 4 , the flying welding device 40 includes a robot 41, a camera assembly 42 and a galvanometer assembly 43, wherein the robot 41 is arranged on one side of the rack 10, and the camera assembly 42 and the galvanometer assembly 43 are arranged on the operating end of the robot 41.

[0077] The robot 41 is installed on one side of the rack 10, which is usually a multi-axis industrial robot 41, such as a six-axis robot 41. Its structure is composed of multiple joints and connecting rods, each joint is driven by a high-precision servo motor, and cooperates with a complex kinematics algorithm to realize flexible three-dimensional space motion. The operating end of the robot 41 is the connecting part at its end, which is used to install the camera assembly 42 and the galvanometer assembly 43.

[0078] The camera assembly 42 is installed on the operating end of the robot 41, which is a highly integrated image acquisition and processing system. The camera assembly 42 contains an industrial camera, such as a high-resolution CCD camera or a CMOS camera, and the camera lens can be selected as a fixed focus or a zoom lens as needed, while being equipped with a ring light source or a strip light source to provide good lighting conditions. During the welding process, the camera assembly 42 captures images of the battery module posts, uses image recognition and processing algorithms to accurately identify the position, profile, angle and other feature information of the posts, and provides key positioning and path information for the laser welding operation of the galvanometer assembly 43.

[0079] The galvanometer assembly 43 is mounted on the operating end of the robot 41, mainly including a high-speed galvanometer and a driving motor. The high-speed galvanometer contains two mirrors that can rotate at high speed, driven by a precision motor. By changing the angle of the mirrors, the direction of the laser beam can be quickly adjusted. The assembly is also equipped with a laser source, such as a fiber laser, which can generate a high-energy laser beam. According to the information provided by the camera assembly 42, the galvanometer assembly 43 can accurately focus the laser beam on the welding point of the pole, and can adjust the power, pulse frequency, etc. of the laser according to different welding needs, to achieve fast, efficient and high-precision laser welding operation.

[0080] Based on the above structure, the unique design of the battery module welding equipment of the embodiments of the present application allows the measuring device 30 and the flying welding device 40 to perform different but interrelated tasks at the same time. For example, while the flying welding device 40 uses the robot 41, the camera assembly 42 and the galvanometer assembly 43 to perform laser welding on one side of the pole, the second cross beam 31 of the measuring device 30 moves along the first direction Y above the other side of the pole of the battery module, and the measuring instrument 32 of the measuring device 30 translates along the left-right direction (X axis) on the second cross beam 31 to measure the data of the other side of the pole (such as the height, spacing, position, etc. of the pole). This parallel operation avoids the sequential execution mode of the traditional technology, which first completes the welding of one side of the pole, and then measures and welds the other side of the pole, reducing the time waste caused by waiting and greatly shortening the welding cycle of the entire battery module.

[0081] For different height or pole position of the battery cell, the first cross beam 21 can accurately press the battery cell to the appropriate position through lifting and moving along the Y axis, as well as the translation of the pressing assembly 213, which ensures the compatibility of various battery modules. Similarly, the mobility of the second cross beam 31 along the front-back direction (Y axis) and the translatability of the measuring instrument 32 along the left-right direction (X axis) enable the measuring device 30 to measure the poles with different positions and layouts, meeting the measurement needs of different battery module poles. The robot 41 in the flying welding device 40 has multiple axes of freedom, which can move flexibly in three-dimensional space, and cooperates with the camera assembly 42 and the galvanometer assembly 43 to adjust the welding position and angle according to different battery module layouts and pole positions, and can also achieve precise welding for complex-shaped and laid-out battery modules, improving the adaptability of the equipment to different products.

[0082] The first cross beam 21 of the battery cell pressing device 20 is movable along the front-back direction (Y axis) and can be lifted, and the pressing assembly 213 thereof is translatable along the left-right direction (X axis), which can quickly adjust the position to press the battery cell, ensuring that the battery cell pole is in the appropriate position, and at the same time cooperating with the measurement and welding operation, so that the operation process of the entire equipment is more compact, further improving the overall efficiency.

[0083] Referring to Figure 1 and Figure 5 , the cell pressing device 20 further comprises a first moving module 211 and a lifting module 212.

[0084] The first moving module 211 is movably arranged along the first direction Y on the rack 10. The first moving module 211 is an important component in the cell pressing device 20 that enables movement in the first direction Y (front-back direction, Y-axis). It is installed on the rack 10, enabling the entire cell pressing device 20 to move flexibly in the front-back direction.

[0085] Referring to Figure 1 , Figure 2 and Figure 5 , the lifting module 212 is arranged on the first moving module 211, and the first cross beam 21 is arranged on the lifting module 212. The lifting module 212 is responsible for the lifting operation of the cell pressing device 20 in the height direction Z (up-down direction, Z-axis), providing the cell pressing device 20 with the ability to adjust its position in the vertical direction.

[0086] The rack 10 is a gantry, and in the cell pressing device 20, two first moving modules 211 and two lifting modules 212 are arranged. The two lifting modules 212 are respectively located at the two ends of the first cross beam 21, and the two first moving modules 211 are respectively located at the two ends of the first cross beam 21 and connected to the corresponding lifting modules 212.

[0087] The rack 10 adopts the form of a gantry, which is a common and stable structure. A gantry generally consists of two vertical columns and a horizontal cross beam, forming a frame structure similar to a "door". This structure can provide strong support for the entire battery module welding equipment and has a large operating space.

[0088] Referring to Figure 2 , in the cell pressing device 20, two first moving modules 211 and two lifting modules 212 are arranged. This layout is to ensure the balance and stable operation of the first cross beam 21.

[0089] The two lifting modules 212 are respectively located at the two ends of the first cross beam 21, and they are connected to the first cross beam 21 through their respective lifting mechanisms and connecting components. This two-end arrangement allows the first cross beam 21 to remain horizontal during lifting, avoiding tilting due to force on one end. For example, when the two lifting modules 212 at both ends are raised or lowered simultaneously, the first cross beam 21 will rise or fall parallelly, ensuring uniform pressing of the cells.

[0090] The two first moving modules 211 are respectively located at the two ends of the first cross beam 21 and are connected with the corresponding lifting modules 212, which ensures the stability and balance of the first cross beam 21 when moving along the first direction Y (Y axis). They work together to enable the first cross beam 21 to move smoothly in the front-back direction and better adapt to different positions of the battery cell. When the first moving module 211 moves forward and backward on the guide rail, through the synchronous movement of the two ends, the first cross beam 21 can drive the pressing assembly 213 to accurately position above the battery cell, preparing for the subsequent pressing operation.

[0091] This structure design realizes the flexible operation of the battery cell pressing device 20 on battery cell modules of different sizes and positions through the precise movement of the first moving module 211 and the lifting module 212, and the stable support of the gantry structure rack 10, improves the adaptability and operation precision of the battery module welding equipment, and provides a guarantee for high-quality battery module welding operation.

[0092] Referring to Figure 2 , the first moving module 211 includes a first moving seat 2111, a first rack 21111, a first gear 21112, and a first driver 21113.

[0093] The first moving seat 2111 is slidably arranged on the rack 10 along the first direction Y. The first moving seat 2111 is the main part of the first moving module 211, which is slidably arranged on the rack 10 along the first direction Y (front-back direction, Y axis). The shape of the first moving seat 2111 is usually a plate structure, which cooperates with the guide rail system on the rack 10 to realize sliding along the Y axis. For example, the bottom can be provided with a groove or a sliding block matched with the guide rail, which cooperates with the linear guide rail on the rack 10 to ensure smooth sliding in the front-back direction.

[0094] Referring to Figure 1 , the first rack 21111 is arranged on the rack 10 and extends along the first direction Y. The first rack 21111 is made of high-strength metal, such as quenched alloy steel, to ensure its wear resistance and carrying capacity. The length of the first rack 21111 is determined according to the operation range of the entire device, which ensures that the first moving seat 2111 can move to the required position in the front-back direction to meet the operation requirements of different battery cell positions.

[0095] The first gear 21112 is rotatably arranged on the first moving seat 2111 and engaged with the first rack 21111. The first gear 21112 is made of high-strength metal, and its tooth shape is matched with that of the first rack 21111 to ensure good engagement effect. Through the engagement with the first rack 21111, when the first gear 21112 rotates, the first moving seat 2111 will move along the extension direction (Y-axis) of the first rack 21111 due to the interaction between the gear and the rack.

[0096] The first driver 21113 is connected to the first gear 21112 and can drive the first gear 21112 to rotate. The first driver 21113 is a device that provides power for the first gear 21112 and is connected to the first gear 21112 to drive it to rotate. The first driver 21113 can be a motor, such as a servo motor or a stepper motor. Through precise control of the motor, the movement distance and speed of the first moving seat 2111 can be accurately controlled to meet the needs of different cell pressing operations. At the same time, the first driver 21113 will usually be equipped with a corresponding reducer to adjust the output torque and speed, ensuring that the rotation speed and force of the gear meet the movement requirements of the first moving module 211.

[0097] The structural design of the first moving module 211 realizes the precise, stable, and controllable movement of the cell pressing device 20 in the front-back direction (Y-axis) through the cooperation of the first moving seat 2111, the first rack 21111, the first gear 21112, and the first driver 21113, providing an important guarantee for the efficient and precise operation of the entire battery module welding equipment. The first moving module 211 ensures that the cell pressing device 20 can be flexibly adjusted according to the position of the cell, providing necessary position adjustment function for subsequent cell pressing and welding operations, improving the adaptability and operation precision of the equipment.

[0098] Referring to Figure 2 and Figure 5 , the lifting module 212 includes a first lifting seat 2121, a lead screw 2122, a nut 2123, and a second driver 2124.

[0099] The first lifting seat 2121 is slidably arranged on the first moving seat 2111 in the height direction Z. The first lifting seat 2121 is the main load-bearing component for movement in the height direction Z (up-down direction, Z-axis) in the lifting module 212. The first lifting seat 2121 can have a block or frame structure, which cooperates with the corresponding part of the first moving seat 2111 to form a sliding connection. For example, one side of the first lifting seat 2121 can be provided with a linear guide rail or dovetail groove structure, which cooperates with the guide rail or protruding part on the first moving seat 2111 to ensure smooth sliding in the up-down direction.

[0100] Referring toFigure 2 A screw rod 2122 is rotatably arranged on the first lifting seat 2121 in the height direction Z. The screw rod 2122 is an elongated rod with precise threads, made of high-strength metal such as alloy steel, and its threads have high-precision pitch and profile to ensure the accuracy and stability of transmission. The rotation of the screw rod 2122 will drive the matching nut 2123 to produce linear motion, thereby realizing the lifting action of the first lifting seat 2121. The length of the screw rod 2122 is determined according to the required lifting range of the device, to ensure that the first lifting seat 2121 can freely adjust the position within a certain height range, adapting to different heights of the battery cell module.

[0101] The nut 2123 is arranged on the first moving seat 2111 and matches the screw rod 2122. The nut 2123 is fixedly arranged on the first moving seat 2111 and matches the screw rod 2122. The internal threads of the nut 2123 precisely match the external threads of the screw rod 2122. When the screw rod 2122 rotates under the drive of the second driver 2124, the nut 2123 cannot rotate due to being fixed with the first moving seat 2111, and can only make the screw rod 2122 move linearly along its own axial direction (Z axis). Through the close cooperation of the nut 2123 and the screw rod 2122, the conversion from rotary motion to linear motion is realized, providing reliable mechanical transmission for the lifting of the first lifting seat 2121.

[0102] The second driver 2124 connects the screw rod 2122 and can drive the screw rod 2122 to rotate. The second driver 2124 can be a motor, such as a servo motor or a stepper motor. The second driver 2124 starts and drives the screw rod 2122 to rotate, thereby driving the nut 2123 and the first lifting seat 2121 to realize the lifting action. At the same time, the second driver 2124 can also be equipped with a corresponding speed reducer to adjust the output torque and speed, to ensure that the rotation speed and force of the screw rod 2122 meet the requirements of the lifting operation, preventing problems such as unstable lifting or failure to reach the required height due to excessive rotation speed or insufficient torque.

[0103] The structural design of this lifting module 212 realizes the precise and stable lifting function of the battery cell pressing device 20 in the height direction Z (Z axis) through the cooperative work of the first lifting seat 2121, the screw rod 2122, the nut 2123 and the second driver 2124. It can flexibly adjust the height position of the first cross beam 21 and the pressing assembly 213 according to the height of the battery cell and the operation requirements, to ensure that the pressing operation of the battery cell can be carried out at the appropriate height, improve the adaptability of the device to different battery cell heights and the accuracy of the operation, provide important support for the efficient and precise operation of the whole battery module welding device, and at the same time ensure the stability and reliability of the battery cell pressing operation.

[0104] Referring toFigure 5 The pressing assembly 213 includes a second moving seat 2131, a second lifting seat 2132, an adjusting seat 2133, a plurality of pressing heads 2134, a third driver 2135, and a fourth driver 21331.

[0105] The second moving seat 2131 is movably arranged on the first cross beam 21 along the second direction X. The second moving seat 2131 is a component in the pressing assembly 213 that enables movement along the second direction X (left-right direction, X-axis). The second moving seat 2131 can be structured to cooperate with a guide rail or track system on the first cross beam 21, for example, possibly through a slider and guide rail arrangement, to enable smooth movement of the second moving seat 2131 along the X-axis direction on the first cross beam 21, allowing adjustment of the position in the left-right direction, facilitating correspondence with different pole positions on one side of the battery module, and improving the adaptability of the device to different pole layouts.

[0106] The second lifting seat 2132 is slidably arranged on the second moving seat 2131 along the height direction Z. The second lifting seat 2132 is connected to the second moving seat 2131 through a linear guide rail or similar sliding mechanism, ensuring linearity and stability during lifting, and providing vertical adjustment capability for the pressing operation of the pressing head 2134.

[0107] Referring to Figure 5 The adjusting seat 2133 is slidably arranged on the bottom of the second lifting seat 2132 along the first direction Y. The adjusting seat 2133 is connected to the second lifting seat 2132 through a sliding mechanism, enabling adjustment of the position in the front-back direction, further increasing the flexibility of adjusting the position of the pressing head 2134. The bottom of the adjusting seat 2133 is provided with a plurality of pressing heads 2134, and the sliding characteristics allow fine adjustment of the position in the Y-axis direction according to the pole layout of different battery modules, ensuring that the pressing head 2134 can accurately align with the poles, and improving the adaptability of the device to different pole positions.

[0108] The pressing heads 2134 are arranged on the bottom of the adjusting seat 2133 along the second direction X, and each of the pressing heads 2134 corresponds to the position of each pole column on one side of the battery module. The pressing head 2134 is provided with a through hole 21341 for laser to pass through. The pressing head 2134 is a component that directly contacts the pole column of the battery module, and its shape and size are designed according to the shape and size of the pole column. Generally, it is a metal structure with certain elasticity and hardness (for example, the pressing head 2134 is connected to the bottom of the adjusting seat 2133 through a spring buffer column) to ensure that the pole column can be stably pressed without being damaged. The pressing head 2134 is provided with a through hole 21341 for laser to pass through. This design is to ensure that the laser can directly act on the pole column through the through hole 21341 during laser welding, avoiding the obstruction of the pressing head 2134 to the laser, and ensuring the normal operation of the welding operation. For example, when the flying welding device 40 performs laser welding on the pole column, the laser can pass through the through hole 21341 of the pressing head 2134 without obstruction, realizing accurate welding on the pole column. At the same time, the pressing head 2134 ensures the stability of the pole column during welding, preventing the movement of the pole column from affecting the welding quality. Correspondingly, the adjusting seat 2133 is also provided with an opening corresponding to the through hole 21341 for laser to pass through.

[0109] Referring to Figure 5 The third driver 2135 is arranged on the second moving seat 2131 and connected to the second lifting seat 2132 to drive the second lifting seat 2132 to lift. The third driver 2135 can be an electric motor, such as a servo motor or an electric push rod. For example, when the pole column of the battery cell needs to be pressed, the third driver 2135 drives the second lifting seat 2132 to descend, so that the pressing head 2134 moves downward and presses the pole column. After the operation is completed, the second lifting seat 2132 can be driven to rise, so that the pressing head 2134 moves away from the pole column.

[0110] The fourth driver 21331 is arranged on the lifting seat and connected to the adjusting seat 2133 to drive the adjusting seat 2133 to move along the first direction Y. The fourth driver 21331 can be an electric motor or a linear driver to drive the adjusting seat 2133 to move in the front-back direction. This allows the adjusting seat 2133 to be fine-tuned according to the actual position of the pole column, further improving the adaptability of the pressing assembly 213 to different pole column layouts. For example, when the pole column of different battery modules or different positions in the same module needs to be pressed, the fourth driver 21331 can adjust the position of the adjusting seat 2133 to ensure that the pressing head 2134 accurately aligns with the pole column, ensuring the flexibility and accuracy of the device.

[0111] The structural design of the pressing assembly 213 realizes flexible adjustment in multiple dimensions through the cooperative work of the second moving seat 2131, the second lifting seat 2132, the adjusting seat 2133, the plurality of pressing heads 2134, and the third driver 2135 and the fourth driver 21331, so that the pressing head 2134 can accurately correspond to the battery module pole in different positions and layouts, and accurately press the pole when needed. At the same time, the through hole 21341 design of the pressing head 2134 ensures the smooth progress of laser welding, improves the adaptability, accuracy and operation efficiency of the entire battery module welding equipment.

[0112] With reference to Figure 1 and Figure 5 , the pressing assembly 213 further comprises a second moving module 21311, which comprises a second rack 213111, a second gear 213112 and a fifth driver 213113.

[0113] The second rack 213111 is arranged on the first cross beam 21 and extends along the second direction X. The length of the second rack 213111 is determined according to the length of the first cross beam 21 and the required operation range of the equipment, and its main function is to provide an engagement path for the second gear 213112, so that the second gear 213112 engaged therewith can drive the second moving seat 2131 to move along the X-axis direction.

[0114] The second gear 213112 is rotatably arranged on the second moving seat 2131 and engaged with the second rack 213111. The tooth shape of the second gear 213112 is accurately matched with the tooth shape of the second rack 213111 to ensure good engagement effect. The second gear 213112 is driven to rotate by the fifth driver 213113, and due to the engagement with the second rack 213111, the second moving seat 2131 is driven to move along the extension direction of the second rack 213111 (X-axis).

[0115] The fifth driver 213113 is connected to the second gear 213112 and can drive the second gear 213112 to rotate. The fifth driver 213113 can be an electric motor, such as a servo motor or a stepper motor. The fifth driver 213113 drives the second gear 213112 to rotate, which can accurately control the rotation speed and angle of the second gear 213112, and in turn accurately control the moving distance and speed of the second moving seat 2131 in the second direction X (X-axis). At the same time, the fifth driver 213113 can be equipped with a corresponding reducer as needed to adjust the output torque and rotation speed to meet the force and speed requirements of the pressing assembly 213 moving in the left and right directions. This can ensure that the second moving seat 2131 can be quickly positioned during movement and accurately adjusted in position when approaching the pole, avoiding damage to the equipment or affecting positioning accuracy due to excessive speed or force.

[0116] The design of the second moving module 21311 further enhances the precise moving ability of the pressing assembly 213 in the left and right directions (X-axis) through the cooperation of the second rack 213111, the second gear 213112, and the fifth driver 213113. It enables the second moving seat 2131 in the pressing assembly 213 to more accurately adjust its position on the first cross beam 21, and in turn drive the pressure head 2134 to accurately correspond to the poles of the battery module, improving the operation precision and flexibility of the entire battery module welding equipment, and ensuring that the pressing assembly 213 can effectively complete the pressing task under different pole layout of the battery module, providing stable pole fixing conditions for subsequent welding operations.

[0117] Referring to Figure 2 A plurality of pressing assemblies 213 are arranged in sequence along the length direction (second direction X, i.e. left and right direction, X-axis) of the first cross beam 21 to meet the demand for pressing multiple poles on the same side of the battery module. By arranging multiple such pressing assemblies 213 on the first cross beam 21, simultaneous or separate operation of multiple poles can be achieved, improving the adaptability and operation efficiency of the equipment for battery modules with multiple poles.

[0118] The second moving module 21311 in each pressing assembly 213 provides it with the ability to move along the length direction (X-axis) of the first cross beam 21, allowing them to adjust the distance between each other. For example, if the pole spacing on one side of the battery module is different, the fifth driver 213113 of each pressing assembly 213 can be controlled to move to the corresponding position on the first cross beam 21, so that each pressure head 2134 can accurately align with a pole. This design allows the equipment to adapt to battery modules with different pole spacings without the need to re-adjust the structure of the entire equipment or replace parts, greatly improving the versatility and flexibility of the equipment.

[0119] Referring to Figure 3 On the second cross beam 31, the measuring instrument 32 moves on the second cross beam 31 through a gear and rack mechanism. That is, a rack is arranged on the second cross beam 31, a sliding seat is slidable along the length direction of the second cross beam 31, a gear is arranged on the sliding seat and engaged with the rack, a motor is arranged on the sliding seat and drives the gear to rotate, and the measuring instrument 32 is installed on the sliding seat.

[0120] Referring to Figure 3 The measuring device 30 further comprises a third moving module 321, which comprises a third moving seat 3211, a third rack 32111, a third gear 3212, and a sixth driver 3213.

[0121] The third moving seat 3211 is slidably arranged on the rack 10 along the first direction Y. The third moving seat 3211 is a core bearing component of the third moving module 321. The third moving seat 3211 can be a block or a frame structure with certain strength and rigidity. The bottom or side surface of the third moving seat 3211 is matched with the guide rail system on the rack 10 to form a sliding connection, so as to ensure that the third moving seat 3211 does not deviate or shake when moving along the Y axis, and to provide a stable moving platform for the measurement operation of the measuring device 30.

[0122] The third rack 32111 is arranged on the rack 10 and extends along the first direction Y. The third rack 32111 is an important guiding and transmission component for realizing the precise movement of the third moving seat 3211. The length of the third rack 32111 is generally determined according to the required operation range of the device, so as to ensure that the third moving seat 3211 can reach the required moving range in the front-back direction for measuring different position poles. Through the engagement of the third rack 32111 and the third gear 3212, precise linear transmission is provided for the front-back movement of the third moving seat 3211, so that the measuring device 30 can measure the poles of the battery module at different positions. In some embodiments, the third rack 32111 and the first rack 21111 are the same rack.

[0123] The third gear 3212 is rotatably arranged on the third moving seat 3211 and engaged with the third rack 32111. When the third gear 3212 is engaged with the third rack 32111, due to its rotatable property, the third gear 3212 will roll along the third rack 32111 under the driving of the sixth driver 3213, thereby driving the third moving seat 3211 to move in the first direction Y (Y axis).

[0124] Referring to Figure 3The sixth driver 3213 is connected with the third gear 3212 and can drive the third gear 3212 to rotate. The sixth driver 3213 is connected with the third gear 3212 for driving the third gear 3212 to rotate, which can be a motor such as a servo motor or a stepper motor, and can realize high-precision position control to ensure that the third moving seat 3211 can accurately move to a predetermined position. At the same time, in order to meet different measurement requirements, the sixth driver 3213 can be equipped with a corresponding speed reducer to adjust the output torque and rotating speed, so that the rotating speed and power of the third gear 3212 meet the requirements of the movement of the measuring device 30 in the front-back direction, and ensure that the measuring device 30 can flexibly and accurately measure the pole at different positions.

[0125] Through the cooperation of the third moving seat 3211, the third rack 32111, the third gear 3212 and the sixth driver 3213, the third moving module 321 provides the measuring device 30 with accurate, stable and controllable movement ability in the front-back direction (Y axis). It can accurately adjust the position of the measuring instrument 32 according to the position of the battery module pole, so as to realize the measurement of the pole at different positions, improve the adaptability and operation precision of the measuring device 30, provide important support for the measurement operation of the whole battery module welding equipment, ensure the accuracy and reliability of the measurement data, and then provide accurate data basis for the subsequent welding operation.

[0126] Referring to Figure 6 The battery module welding equipment further comprises a guiding and positioning device 50, which comprises a guiding assembly 51, a blocking mechanism 52 and a jacking positioning mechanism 53.

[0127] The guiding assembly 51 comprises two spaced guiding strips 511, and a channel 512 along the first direction Y is formed between the two guiding strips 511. The carrier robot 41 can pass through the channel 512, and the welding station 11 is located in the channel 512.

[0128] The two guide bars 511 form a channel 512 in the first direction Y (front-rear direction, Y axis). The guide bars 511 can be long strip-shaped structures made of metal materials (such as aluminum alloy or steel), with high strength and straightness to ensure that they will not deform or bend during use. They are precisely installed on the equipment to ensure that the channel 512 between them has a stable width and straightness, and the entrance end of the channel 512 can be designed to have a large-to-small spacing to facilitate the guiding of the carrying robot 41 into the channel 512. The main function of the guide bars 511 is to guide the carrying robot 41, allowing it to travel along a predetermined path when carrying the battery module. For example, when the carrying robot 41 moves along the channel 512, its wheels or walking mechanism will come into contact with or close to the guide bars 511. By using the restraining action of the guide bars 511, the robot 41 can be accurately moved in the front-rear direction towards the welding station 11, avoiding deviation from the correct path and ensuring the accuracy and stability of the robot 41.

[0129] The channel 512 not only defines the travel path of the carrying robot 41, but also matches its length and position with the overall layout of the equipment, ensuring that the carrying robot 41 can smoothly deliver the battery module to the welding station 11. The width is designed considering the size and movement accuracy of the carrying robot 41, ensuring that the robot 41 can pass smoothly and preventing large lateral shaking, ensuring the safety and accuracy of the transportation process.

[0130] Referring to Figure 6 The blocking mechanism 52 includes a blocking piece 521 and a seventh driver 522. The blocking piece 521 is located behind the welding station 11 in the direction of travel of the carrying robot 41, and the seventh driver 522 can drive the blocking piece 521 to extend and insert into the channel 512 to block the carrying robot 41, or to retract and exit the channel 512.

[0131] The blocking piece 521 can be a block-shaped or rod-shaped structure made of metal or high-strength plastic, with a shape and size designed to effectively block the carrying robot 41. When the seventh driver 522 drives the blocking piece 521 to extend, the blocking piece 521 will insert into the channel 512, with a position and size that ensure it can come into contact with the travel part (such as the chassis or frame) of the carrying robot 41, thereby preventing the robot 41 from continuing to move forward.

[0132] The extension and retraction of the blocking piece 521 are controlled by the seventh driver 522, which can be a pneumatic cylinder, an electric push rod, or a combination of a motor and a transmission mechanism.

[0133] The main function of the seventh driver 522 is to accurately control the position state of the blocking piece 521, and to determine whether to extend or retract the blocking piece 521 according to different operation stages. When the battery module has reached the welding station 11 and needs to be subjected to subsequent welding operations, the seventh driver 522 will extend the blocking piece 521 to prevent the robot 41 from moving accidentally and to ensure the safety and stability of the welding operation. After the welding is completed, the seventh driver 522 will retract the blocking piece 521 to allow the robot 41 to pass, so as to ensure the orderliness and safety of the entire device in different operation stages and to avoid interference with the ongoing welding or measurement operation due to accidental movement of the robot 41.

[0134] With reference to Figure 6 and Figure 7 The jacking positioning mechanism 53 includes a column 531, a positioning pin 532, and an eighth driver 535. The column 531 is arranged on the floor and located on one side of the channel 512. The positioning pin 532 is arranged on the column 531 in a liftable manner and corresponds to the position of the pin hole on the robot 41 on the welding station 11. The eighth driver 535 can drive the positioning pin 532 to lift.

[0135] The column 531 is arranged on the floor and located on one side of the channel 512. It is a vertical columnar structure made of metal material and provides support for the positioning pin 532. It needs to have sufficient strength and stability to ensure that it will not sway or tilt when subjected to the lifting operation of the positioning pin 532 and possible external forces.

[0136] The positioning pin 532 is arranged on the column 531 in a liftable manner. Its shape and size are matched with the pin hole on the robot 41. The main function of the positioning pin 532 is to cooperate with the pin hole on the robot 41 to achieve accurate positioning of the robot 41. When the eighth driver 535 drives the positioning pin 532 to rise, the positioning pin 532 will be inserted into the pin hole of the robot 41 to accurately position the robot 41 on the welding station 11, ensuring that the robot 41 and the battery module carried thereby will not deviate in position during subsequent welding, measurement, and pressing operations. In a specific embodiment, the positioning pin 532 is connected to a lifting platform 536, which is installed on the column 531 through a slide rail assembly to lift. With the lifting of the lifting platform 536, the positioning pin 532 is lifted to be inserted into the pin hole or lowered to exit the pin hole.

[0137] The eighth driver 535 is connected to the positioning pin 532 and is used to drive the lifting operation of the positioning pin 532, which can be a pneumatic cylinder, an electric push rod, or a linear motor, etc. The eighth driver 535 lifts the positioning pin 532 at the appropriate time according to the operation process of the device, so that the carrying robot 41 is accurately positioned at the welding station 11, and lowers the positioning pin 532 after the operation is completed, allowing the carrying robot 41 to leave.

[0138] The guiding and positioning device 50 of the embodiment of the present application provides accurate guidance, reliable blocking, and precise positioning functions for the battery module welding device through the cooperative work of the guiding assembly 51, the blocking mechanism 52, and the jacking positioning mechanism 53. It ensures that the carrying robot 41 can accurately deliver the battery module to the welding station 11 along the predetermined path, achieve accurate positioning on the welding station 11, and prevent the robot 41 from malfunctioning through the blocking mechanism 52, which provides an important guarantee for the efficient, stable, and accurate operation of the entire battery module welding device, ensures the safety and reliability of the welding process, and also improves the automation level and accuracy of the device operation.

[0139] With reference to Figure 6 and Figure 7 , the jacking positioning mechanism 53 further comprises a roller 533 and a wedge block 534.

[0140] The roller 533 is rotatably arranged at the lower end of the positioning pin 532. The function of the roller 533 is to reduce the friction between the positioning pin 532 and the wedge block 534, so that the positioning pin 532 moves more smoothly during the lifting process. When the wedge block 534 moves, the roller 533 is in contact with the wedge block 534. Since the roller 533 can rotate freely, it can convert the linear motion of the wedge block 534 into the lifting motion of the positioning pin 532, while reducing the friction between the two, reducing energy loss and component wear. This helps to improve the service life and smoothness of operation of the jacking positioning mechanism 53, and avoids the possibility of jamming due to excessive friction during the lifting of the positioning pin 532, ensuring that the positioning pin 532 can be accurately lifted. Specifically, the roller 533 is installed on the lifting platform 536 connected to the positioning pin 532, and the lifting platform 536 is lifted by the roller 533, thereby lifting the positioning pin 532.

[0141] The wedge block 534 is slidably arranged on the floor, the roller 533 is located on the movement path of the wedge block 534, the wedge block 534 is connected with the eighth driver, the wedge block 534 has an inclined surface and a flat end surface connected with the upper end of the inclined surface, and the eighth driver can drive the wedge block 534 to move, so that the roller 533 sequentially rolls and contacts the inclined surface and the flat end surface, to lift the positioning pin 532.

[0142] The inclined surface and flat end surface of the wedge 534 are designed to achieve the step-by-step lifting and final positioning of the positioning pin 532. The inclined surface of the wedge 534 can convert the horizontal movement force of the eighth driver into a vertical lifting force. When the roller 533 contacts the inclined surface, the roller 533 will roll along the inclined surface as the wedge 534 moves horizontally. According to the angle of the inclined surface and the movement distance of the wedge 534, the positioning pin 532 will be lifted step by step. When the roller 533 rolls onto the flat end surface, the positioning pin 532 will be stabilized at a certain height, achieving accurate positioning of the positioning pin 532.

[0143] The material of the wedge 534 is usually metal, and its surface is processed to have certain hardness and smoothness to reduce friction with the roller 533. Its shape and size are designed according to the size of the positioning pin 532, the required lifting height, and the stroke of the eighth driver, etc. The angle of the inclined surface needs to be optimized according to the actual situation to balance the lifting force and the required driving force, ensuring that the positioning pin 532 can be lifted to the required position with appropriate force and speed under the driving of the eighth driver.

[0144] The wedge 534 is connected to the eighth driver, which can be a pneumatic cylinder, an electric push rod, or other linear driving devices. When the eighth driver works, it will push the wedge 534 to move along the predetermined path. For example, using a pneumatic cylinder as the eighth driver, when the piston of the pneumatic cylinder extends, it will push the wedge 534 to move horizontally, making the roller 533 contact the inclined surface and flat end surface of the wedge 534 in turn, and then achieving the lifting and positioning operation of the positioning pin 532. Preferably, the wedge 534 is connected to the floor through a guide rail assembly.

[0145] Referring to Figure 3 , the measuring instrument 32 is a profilometer. In the battery module welding equipment, the profilometer is arranged on the second beam 31 as the measuring instrument 32, which can measure a plurality of pole posts on one side of the battery module in turn when it translates along the second direction X (left-right direction, X axis). The profilometer can accurately measure the profile information of each pole post, which is crucial for subsequent welding operations.

[0146] When the profilometer moves along the second beam 31, it can scan and measure the entire profile of the pole post. For example, the profilometer can measure whether the top shape of the pole post is flat, whether there are irregular protrusions or depressions on the side surface, and the overall height variation of the pole post. For welding operations, accurate profile measurement can help determine the welding position and welding parameters, ensuring that the starting point, ending point, and welding trajectory of laser welding can accurately fit the actual shape of the pole post, avoiding welding problems such as insufficient or excessive welding due to irregular pole post profile.

[0147] Since the profilometer can provide detailed profile data of the pole surface, it can provide more accurate data support for the welding device. The camera assembly 42 and the galvanometer assembly 43 in the flying welding device 40 can optimize the welding trajectory and laser power according to the measurement results of the profilometer. For example, if the profilometer measures that the surface of a certain area of the pole is relatively rough, the laser power and the welding speed may need to be adjusted during welding to ensure the welding quality of the area.

[0148] The above description is merely the preferred embodiment of the present application, but not to limit the present application. Any modification, equivalent replacement and improvement made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery module welding apparatus characterized by comprising: The application relates to a battery module welding device. The device comprises a rack, a welding station, a carrying robot, two cell pressing devices, a measuring device and a flying welding device. The carrying robot can move to the welding station. The two cell pressing devices are arranged above the welding station on both sides of the rack. The cell pressing device comprises a first beam and a pressing assembly.

2. The battery module welding apparatus according to claim 1, characterized by, The first beam is arranged on the rack and can be lifted and moved along a first direction. The length of the first beam is arranged along a second direction. The first direction, the second direction and the height direction form an angle with each other.

3. The battery module welding apparatus according to claim 2, characterized by, The pressing assembly is arranged on the first beam and can be translated along the second direction to correspond to the pole position of the battery module. The measuring device comprises a second beam and a measuring instrument. The second beam is arranged on the rack and can be moved along the first direction. The second beam is arranged between the two first beams. The length of the second beam is arranged along the second direction.

4. The battery module welding apparatus according to claim 3, characterized by, The measuring instrument is arranged on the second beam and can be translated along the second direction to measure the data of the pole on one side of the battery module. The flying welding device comprises a robot, a camera assembly and a vibrating mirror assembly. The robot is arranged on one side of the rack. The camera assembly and the vibrating mirror assembly are arranged on the operating end of the robot. The cell pressing device further comprises a first moving module and a lifting module.

5. The battery module welding apparatus of claim 1, wherein, The first moving module is arranged on the rack and can be moved along the first direction. The lifting module is arranged on the first moving module and can be lifted. The first moving module comprises a first moving seat, a first rack, a first gear and a first driver. The first moving seat is arranged on the rack and can be slid along the first direction. The first rack is arranged on the rack and extends along the first direction. The first gear is arranged on the first moving seat and is engaged with the first rack. The first driver is connected with the first gear and can drive the first gear to rotate.

6. The battery module welding apparatus of claim 5, wherein, The lifting module comprises a first lifting seat, a screw rod, a nut and a second driver. The first lifting seat is arranged on the first moving seat and can be slid along the height direction. The screw rod is arranged on the first lifting seat and can be rotated along the height direction. The nut is arranged on the first moving seat and is matched with the screw rod. The second driver is connected with the screw rod and can drive the screw rod to rotate. The pressing assembly comprises a second moving seat, a second lifting seat, an adjusting seat, a plurality of pressing heads, a third driver and a fourth driver. The second moving seat is arranged on the first beam and can be moved along the second direction. The second lifting seat is arranged on the second moving seat and can be slid along the height direction. The adjusting seat is arranged on the bottom of the second lifting seat and can be slid along the first direction. The plurality of pressing heads are arranged on the bottom of the adjusting seat and correspond to the pole position on one side of the battery module. The pressing head is provided with a via hole for laser to pass through. The third driver is arranged on the second moving seat and is connected with the second lifting seat to drive the second lifting seat to lift. The fourth driver is arranged on the lifting seat and is connected with the adjusting seat to drive the adjusting seat to move along the first direction. The pressing assembly further comprises a second moving module. The second moving module comprises a second rack and a second gear. The second rack is arranged on the first beam and extends along the second direction. The second gear is arranged on the second moving seat and is engaged with the second rack. The second driver is connected with the second gear and can drive the second gear to rotate. A second gear rotatably arranged on the second moving seat and engaged with the second rack; A fifth driver connected to the second gear and capable of driving the second gear to rotate.

7. The battery module welding apparatus of claim 1, wherein, The measuring device further comprises a third moving module, which comprises: A third moving seat slidably arranged on the rack along the first direction; A third rack arranged on the rack and extending along the first direction; A third gear rotatably arranged on the third moving seat and engaged with the third rack; A sixth driver connected to the third gear and capable of driving the third gear to rotate.

8. The battery module welding apparatus of claim 1, wherein, The battery module welding device further comprises a guiding and positioning device, which comprises: A guiding assembly comprising two spaced guiding strips, a channel along the first direction being formed between the two guiding strips, the carrying robot being capable of passing through the channel, and the welding station being located in the channel; A blocking mechanism comprising a blocking member and a seventh driver, the blocking member being arranged behind the welding station along the advancing direction of the carrying robot, and the seventh driver being capable of driving the blocking member to extend into the channel to block the carrying robot or to retract the blocking member to exit the channel; A jacking and positioning mechanism comprising a stand, a positioning pin and an eighth driver, the stand being arranged on the floor and located at one side of the channel, the positioning pin being liftably arranged on the stand and corresponding to the position of the pin hole on the carrying robot on the welding station, and the eighth driver being capable of driving the positioning pin to lift.

9. The battery module welding apparatus of claim 8, wherein, The jacking and positioning mechanism further comprises: A roller rotatably arranged on the lower end of the positioning pin; A wedge slidably arranged on the floor, the roller being located on the moving path of the wedge, the wedge being connected with the eighth driver, the wedge having an inclined surface and a flat end surface connected with the upper end of the inclined surface, and the eighth driver being capable of driving the wedge to move so that the roller sequentially rolls on the inclined surface and the flat end surface to lift the positioning pin.

10. The battery module welding apparatus according to any one of claims 1 to 9, characterized by, The measuring instrument is a profilometer.

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