High-precision blade battery top cover laser full-length welding machine

Abstract

The utility model discloses a high-precision blade battery top cover laser full welding machine which comprises a workbench, a centering feeding device, a left welding pressing device, a right welding pressing device, a left laser welding device and a right laser welding device, wherein the centering feeding device, the left welding pressing device, the right welding pressing device, the left laser welding device and the right laser welding device are installed on the workbench. The centering and feeding device comprises a centering assembly, a supporting and clamping assembly and a feeding assembly, the centering assembly is used for centering and positioning the position of the blade battery, the supporting and clamping assembly is used for supporting and clamping the middle of the blade battery, and the feeding assembly is used for conveying the blade battery; the left welding pressing device and the right welding pressing device each comprise a supporting seat, an air slip ring, a direct drive motor, a pressing supporting plate, a battery upper pressing mechanism, a battery side pressing mechanism and a battery top cover pressing mechanism. According to the utility model, a blade battery can be aligned to the center of a machine table and is accurately fed, and the blade battery can be simultaneously positioned and fixed from the front end, the rear end, the left end, the right end and the top cover end; in the rotating process, the problem of air pipe winding of the air cylinder is avoided; the welding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment, in particular to a high-precision laser full welding machine for a blade battery top cover. Background Art

[0002] The blade battery is a lithium-ion battery with external specifications that are long, narrow, and thin like a blade. There are top covers at both ends of the blade battery. Currently, the two ends of the blade battery and the top covers are mainly connected by laser welding.

[0003] Refer to Chinese patent document CN113523561B, which discloses a three-in-one laser welding device for blade batteries. The laser welding device includes a workbench with a three-axis slide mounted on top, a laser welding galvanometer mounted on the slide, and a first, second, and third station located on the workbench surface to assist the laser welding galvanometer in welding the blade batteries. The patent provides multiple stations for assisting blade battery welding. At any station, the blade battery can be positioned to a specific position and fully exposed for welding, and then laser welding is performed using the laser welding galvanometer.

[0004] However, the laser welding equipment disclosed in the patent CN113523561B also has the following technical problems: First, the laser welding equipment is not provided with a device to align the blade battery with the center of the machine, making it difficult to achieve accurate feeding; Second, the first station, the second station and the third station of the laser welding equipment can only press the upper side, the lower side and the end cover at both ends of the blade battery, but cannot press the upper side, the lower side, the front side, the rear side and the top cover at both ends of the blade battery at the same time. During the welding process, the blade battery and the end cover cannot be pressed from the front, back, left, right and top cover ends. At the same time, the blade battery is positioned and fixed, making it difficult to ensure the welding precision of the blade battery; thirdly, the first, second and third stations of the laser welding equipment are not equipped with air slip ring assemblies, and the cylinder is prone to air pipe entanglement during the rotation process; fourthly, the laser welding equipment only has one set of laser welding galvanometers, which cannot weld both ends of the blade battery at the same time, and the welding efficiency is low; fifthly, the laser welding equipment cannot feed and laser weld power batteries of different lengths and widths, and has poor compatibility. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a high-precision blade battery top cover laser full welding machine based on the above-mentioned deficiencies in the prior art. The centering feeding device of the laser full welding machine can align the blade battery to the center of the machine and feed it accurately; the left welding clamping device and the right welding clamping device of the laser full welding machine can simultaneously position and fix the blade battery from the front, back, left, right and top cover end, so that the welding precision of the blade battery can be guaranteed; the left welding clamping device and the right welding clamping device of the laser full welding machine are respectively provided with an air slip ring assembly, and during the rotation process, the cylinder will not have the problem of air pipe entanglement; the left laser welding device and the right laser welding device of the laser full welding machine can weld the two ends of the blade battery at the same time, and the welding efficiency is high.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a high-precision blade battery top cover laser full welding machine, comprising a frame, a workbench is installed on the frame, and a centering feeding device, a left welding clamping device, a right welding clamping device, a left laser welding device and a right laser welding device are installed on the workbench; the centering feeding device comprises a centering component, a supporting clamping component and a feeding component, the centering component is installed on the front middle part of the workbench, and the centering component is used to center the position of the blade battery; the supporting clamping component is installed on the feeding component to support and clamp the middle part of the blade battery; the feeding component is installed on the middle part of the workbench, and the feeding component is used to move the supporting clamping component and transfer the left and right ends of the blade battery on the supporting clamping component to the left welding clamping device and the right welding clamping device; the left welding clamping device The device and the right welding clamping device respectively include a support seat, an air slip ring, a direct drive motor, a clamping support plate, a battery upper pressure mechanism, a battery side pressure mechanism and a battery top cover clamping mechanism, the air slip ring and the direct drive motor are respectively installed on the support seat, the direct drive motor is provided with a rotatable motor connecting block, the air slip ring is connected to the middle part of the motor connecting block, and the clamping support plate is connected to the side of the motor connecting block, the battery upper pressure mechanism, the battery side pressure mechanism and the battery top cover clamping mechanism are respectively installed on the clamping support plate, the battery upper pressure mechanism is used to clamp the upper side of the blade battery, the battery side pressure mechanism is used to clamp the front and rear sides of the blade battery, and the battery top cover clamping mechanism is used to clamp the top cover at the end of the blade battery; the left laser welding device is used for laser full welding of the top cover at the left end of the blade battery, and the right laser welding device is used for laser full welding of the top cover at the right end of the blade battery.

[0007] In the above technical solution, a left translation assembly is installed on the left end of the workbench, and the left translation assembly includes a left guide rail, a left linear motor and a left translation support plate, the left guide rail extends along the left and right directions and is provided with two, the left linear motor is installed between the two left guide rails, the left translation support plate is slidably installed on the left guide rail, the power output end of the left linear motor is connected to the left translation support plate, and the left welding clamping device and the left laser welding device are respectively installed on the left translation support plate; a right translation assembly is installed on the right end of the workbench, and the right translation assembly includes a right guide rail, a right linear motor and a right translation support plate, the right guide rail extends along the left and right directions and is provided with two, the right linear motor is installed between the two right guide rails, the right translation support plate is slidably installed on the right guide rail, the power output end of the right linear motor is connected to the right translation support plate, and the right welding clamping device and the right laser welding device are respectively installed on the right translation support plate.

[0008] In the above technical solution, the left laser welding device and the right laser welding device respectively include an X-axis transmission device, a Y-axis transmission device, a Z-axis transmission device, a machine head, a laser cutting head and a CCD positioning camera; the X-axis transmission device is installed on the left translation support plate or the right translation support plate, the Y-axis transmission device is installed on the X-axis transmission device, the Z-axis transmission device is installed on the Y-axis transmission device, the machine head is installed on the Z-axis transmission device, the laser cutting head and the CCD positioning camera are respectively installed on the machine head, and the CCD positioning camera is used to accurately find the weld position of the blade battery top cover.

[0009] In the above technical solution, the centering assembly includes a left battery positioning frame, a left centering cylinder, a left centering baffle, a right battery positioning frame, a right centering cylinder and a right centering baffle; the top of the left battery positioning frame is provided with a supporting slide for supporting the left end of the blade battery, and a left cylinder seat is provided on the left side of the upper end of the left battery positioning frame. The left centering cylinder is installed on the left cylinder seat, and the cylinder telescopic rod of the left centering cylinder extends to the right and is connected to the left centering baffle; the top of the right battery positioning frame is provided with a supporting slide for supporting the right end of the blade battery, and a right cylinder seat is provided on the right side of the upper end of the right battery positioning frame. The right centering cylinder is installed on the right cylinder seat, and the cylinder telescopic rod of the right centering cylinder extends to the left and is connected to the right centering baffle.

[0010] In the above technical solution, the centering assembly of the centering feeding device also includes a guide rod, a forward and reverse screw rod, a left screw rod nut, a left nut seat, a left bearing, a left bearing seat, a right screw rod nut, a right nut seat, a right bearing, a right bearing seat and a screw rod driving mechanism; the guide rods are provided with two parallel ones, the left end of the guide rod is connected to the left bearing seat, and the right end of the guide rod is connected to the right bearing seat; the left end of the forward and reverse screw rods is provided with a forward thread, and the right end of the forward and reverse screw rods is provided with a reverse thread, the left nut seat is slidably installed on the guide rod, the left screw rod nut is installed in the left nut seat, and the left end of the forward and reverse screw rods moves through the left The screw nut is threadedly matched with the left screw nut; the right nut seat is slidably installed on the guide rod, and the right screw nut is installed in the right nut seat. The right end of the forward and reverse screw rods moves through the right screw nut and is threadedly matched with the right screw nut; the left bearing is installed in the left bearing seat, and the left end of the forward and reverse screw rods is installed in the left bearing; the right bearing is installed in the right bearing seat, and the right end of the forward and reverse screw rods passes through the right bearing and is connected to the screw drive mechanism; the left battery positioning frame is installed on the left nut seat, and the right battery positioning frame is installed on the right nut seat.

[0011] In the above technical solution, the feeding assembly includes a linear transmission module, a module pad and a module support seat. The linear transmission module is installed on the module pad, and the module pad is installed on the module support seat; the support clamping assembly is installed on the linear transmission module, and the linear transmission module is used to drive the support clamping assembly to move forward and backward.

[0012] In the above technical solution, the support and clamping assembly of the centering feeding device includes a battery lifting mechanism and a battery clamping mechanism. The battery lifting mechanism is used to support and drive the blade battery to lift and lower. The battery clamping mechanism is installed on the battery lifting mechanism. The battery clamping mechanism is used to clamp or release the middle part of the blade battery; the battery lifting mechanism includes a cylinder mounting plate, a lifting cylinder, a battery positioning groove, a guide shaft and a linear bearing; the lifting cylinder is installed on the middle part of the cylinder mounting plate, and the cylinder telescopic rod of the lifting cylinder extends upward and connects to the bottom of the battery positioning groove; the guide shaft is provided with four, and the four guide shafts are vertical Installed on the four corners of the cylinder mounting plate, there are four linear bearings, and the four linear bearings are installed on the four corners of the battery positioning groove, and the guide shaft passes through the corresponding linear bearings upward; support plates for supporting blade batteries are installed on both sides of the upper end of the battery positioning groove; the battery clamping mechanism includes a static clamping plate, a clamping cylinder and a dynamic clamping plate, the static clamping plate is installed on the rear end of the battery positioning groove, and the clamping cylinder is installed in the battery positioning groove, the cylinder telescopic rod of the clamping cylinder extends forward and connects the dynamic clamping plate, and the dynamic clamping plate and the static clamping plate cooperate with each other to clamp or release the middle part of the blade battery.

[0013] In the above technical solution, the support base of the left welding clamping device and the right welding clamping device includes a support pad, a support vertical plate and a reinforcement support plate, the support vertical plate and the reinforcement support plate are vertically installed on the support pad, and the support vertical plate and the reinforcement support plate are connected to each other; an air slip ring support column 721 is fixedly connected to one side of the upper end of the support vertical plate, and an air slip ring clamping block is installed at one end of the air slip ring support column 721; the air slip ring includes an air slip ring body, the air slip ring body is installed on the air slip ring clamping block, and the air slip ring body is provided with a rotatable air slip ring shaft; the upper end of the support vertical plate is provided with a vertical plate through hole, the air slip ring shaft moves through the vertical plate through hole, and is connected to the motor connection block of the direct drive motor.

[0014] In the above technical solution, the battery pressing mechanism of the left welding clamping device and the right welding clamping device includes an upper pressing cylinder mounting plate, an upper pressing cylinder, an upper pressing cylinder driving plate, an upper pressing block connecting plate and an upper pressing block. The upper pressing cylinder mounting plate is vertically installed on one side of the pressing support plate, and the upper pressing cylinder is installed on the upper pressing cylinder mounting plate. The power output end of the upper pressing cylinder is connected to the upper pressing cylinder driving plate. The upper pressing cylinder is used to drive the upper pressing cylinder driving plate to rise or fall. The upper pressing block connecting plate is horizontally installed at the lower end of the upper pressing cylinder driving plate, and the upper pressing block is installed at one end of the upper pressing block connecting plate close to the direct drive motor; the clamping support plate is provided with a support plate pressing block, and the upper pressing block and the support plate pressing block are positioned opposite to each other.

[0015] In the above technical solution, the battery side pressure mechanism of the left welding clamping device and the right welding clamping device includes a static side pressure block connecting plate, a static side pressure block, a side pressure cylinder, a dynamic side pressure block connecting plate and a dynamic side pressure block, the static side pressure block connecting plate is installed on one end of the clamping support plate, the static side pressure block is installed on the end of the static side pressure block connecting plate close to the direct drive motor, the side pressure cylinder is installed on the lower side of the clamping support plate, the power output end of the side pressure cylinder is connected to the dynamic side pressure block connecting plate, and the dynamic side pressure block is installed on the dynamic side pressure block. The block connecting plate is close to one end of the direct drive motor, the static side pressure block connecting plate is opposite to the dynamic side pressure block connecting plate, and the static side pressure block is opposite to the dynamic side pressure block; the battery top cover clamping mechanism of the left welding clamping device and the right welding clamping device includes a top cover clamping cylinder, a top cover clamping block connecting plate and a top cover clamping block, the top cover clamping cylinder is installed on the lower side of the clamping support plate, the power output end of the top cover clamping cylinder is connected to the top cover clamping block connecting plate, and the top cover clamping block is installed on the upper end of the top cover clamping block connecting plate.

[0016] The beneficial effects of the present invention are: 1) the present invention is provided with a centering feeding device, which includes a centering assembly, a supporting and clamping assembly and a feeding assembly. The present invention can use the centering assembly to center the position of the blade battery so that the blade battery is aligned with the center of the machine, and can use the supporting and clamping assembly to support and clamp the middle of the blade battery after the centering is completed, and then use the feeding assembly to move the supporting and clamping assembly so that the left and right ends of the blade battery on the supporting and clamping assembly are transferred to the left welding clamping device and the right welding clamping device, thereby achieving precise feeding; 2) the left welding clamping device and the right welding clamping device of the present invention are respectively provided with a battery upper pressing mechanism, a battery side pressing mechanism and a battery top cover pressing mechanism, which are respectively arranged It is installed on the clamping support plate, wherein the battery upper pressing mechanism can press the upper side of the blade battery, the battery side pressing mechanism can press the front and rear sides of the blade battery, and the battery top cover pressing mechanism can press the top cover at the end of the blade battery, so that the blade battery can be positioned and fixed from the front, back, left, right and top cover end at the same time, so that the welding precision of the blade battery can be guaranteed; 3) The left welding clamping device and the right welding clamping device of the utility model are respectively provided with an air slip ring assembly. During the rotation process, the cylinders of the left welding clamping device and the right welding clamping device will not have the problem of air pipe entanglement; 4) The utility model is provided with a left laser welding device and a right laser welding device, which can weld the two ends of the blade battery at the same time, and the welding efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the structural diagram of the blade battery.

[0018] Figure 2 This is the overall structure diagram of the high-precision blade battery top cover laser full welding machine.

[0019] Figure 3 This is the overall structure diagram of the high-precision blade battery top cover laser full welding machine after removing the outer cover.

[0020] Figure 4 This is a three-dimensional structural diagram of the frame and workbench.

[0021] Figure 5 It is a three-dimensional structural diagram of the centering feeding device.

[0022] Figure 6 It is a three-dimensional structural diagram of the centering component.

[0023] Figure 7 This is a bottom cross-sectional structural diagram of the centering component.

[0024] Figure 8 This is one of the three-dimensional structural diagrams of the support clamping assembly and the feeding assembly.

[0025] Figure 9This is the second three-dimensional structural diagram of the support clamping component and the feeding component.

[0026] Figure 10 This is a structural schematic diagram of the blade battery placed on the left welding clamping device and the right welding clamping device.

[0027] Figure 11 This is one of the three-dimensional structural diagrams of the left welding clamping device.

[0028] Figure 12 This is the second three-dimensional structural diagram of the left welding clamping device.

[0029] Figure 13 This is the distributed structure diagram of the left welding clamping device.

[0030] Figure 14 This is a three-dimensional structural diagram of the right laser welding device. DETAILED DESCRIPTION

[0031] The structural principle and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "backward," "left," "right," and the like, indicating directions or positions, are based on the directions or positions shown in the accompanying drawings. The terms "X-axis," "Y-axis," and "Z-axis" refer to the directions of movement of the laser cutting head and are used solely to facilitate the description of this utility model and simplify the description and should not be construed as limiting the utility model.

[0033] like Figure 1 The figure shows the structure of the blade battery 1. The blade battery 1 is a lithium-ion battery with a long, narrow and thin outer specification like a blade. The two ends of the blade battery 1 respectively have a top cover 2. The utility model is a laser full welding machine for welding the two ends of the blade battery to the top cover.

[0034] like Figure 2-14As shown, the utility model high-precision blade battery top cover laser full welding machine includes a frame 3, the upper end of the frame 3 is provided with an outer cover 4, and one end of the outer cover is provided with an input control device 41; a workbench 5 is installed on the frame 3, and a centering feeding device 6, a left welding clamping device 7, a right welding clamping device 8, a left laser welding device 9 and a right laser welding device 10 are installed on the workbench 5; the centering feeding device 6 includes a centering component 61, a support clamping component 62 and a feeding component 63, and the centering component 61 is used to center the position of the blade battery 1; the support clamping component 62 is installed on the feeding component 63 to support and clamp the middle part of the blade battery 1; the feeding component 63 is used to move the support clamping component 62, and transfer the left and right ends of the blade battery 1 on the support clamping component 62 to the left welding clamping device 7 and the right welding clamping device 8; the left welding clamping device 7 and the right welding clamping device 8 respectively include a support seat 71, an air slip ring 72, and a direct drive motor 73. , a pressing support plate 74, a battery upper pressing mechanism 75, a battery side pressing mechanism 76 and a battery top cover pressing mechanism 77, the gas slip ring 72 and the direct drive motor 73 are respectively installed on the support seat 71, the direct drive motor 73 is also called a DD motor, the direct drive motor 73 is provided with a rotatable motor connecting block 731, the gas slip ring 72 is connected to the middle of the motor connecting block 731, the pressing support plate 74 is connected to the side of the motor connecting block 731, the battery upper pressing mechanism 75, the battery side pressing mechanism 76 and the battery top cover pressing mechanism 77, the gas slip ring 72 and the direct drive motor 73 are respectively installed on the support seat 71, the direct drive motor 73 is also called a DD motor, the direct drive motor 73 is provided with a rotatable motor connecting block 731, the gas slip ring 72 is connected to the middle of the motor connecting block 731, the pressing support plate 74 is connected to the side of the motor connecting block 731, the battery upper pressing mechanism 75, the battery side pressing mechanism The mechanism 76 and the battery top cover pressing mechanism 77 are respectively installed on the pressing support plate 74, the battery upper pressing mechanism 75 is used to press the upper side of the blade battery 1, the battery side pressing mechanism 76 is used to press the front and rear sides of the blade battery 1, and the battery top cover pressing mechanism 77 is used to press the top cover 2 at the end of the blade battery 1; the left laser welding device 9 is used to laser fully weld the top cover 2 at the left end of the blade battery 1, and the right laser welding device 10 is used to laser fully weld the top cover 2 at the right end of the blade battery 1.

[0035] The welding method of the high-precision blade battery top cover laser full welding machine of the present invention includes the following welding steps: S1. Pre-fix the two ends of the blade battery 1 to the top cover 2 respectively by spot welding; spot welding pre-fixation is the previous process of full welding, and its purpose is to preliminarily connect the blade battery 1 and the top cover 2; S2. The manipulator or the staff places the blade battery 1 on the centering component 61 of the centering feeding device 6, and the centering component 61 aligns the blade battery 1 with the center of the machine; S3. The support clamping component 62 of the centering feeding device 6 supports and clamps the middle part of the blade battery 1; S4. The feeding component 63 of the centering feeding device 6 moves the support clamping component 62, and transfers the left and right ends of the blade battery 1 above the support clamping component 62 to the left welding clamping device 7 and the right welding clamping device 8; S5. The support clamping component 62 of the centering feeding device 6 releases the blade battery 1 Supporting and clamping function, the left welding clamping device 7 and the right welding clamping device 8 work synchronously, and the battery upper pressing mechanism 75, battery side pressing mechanism 76, and battery top cover clamping mechanism 77 of the left welding clamping device 7 and the right welding clamping device 8 press the two ends of the blade battery 1 and the top cover 2 together; S6. The left laser welding device 9 and the right laser welding device 10 work synchronously, the left laser welding device 9 performs laser welding on the left end of the blade battery 1 and the top cover 2, and the right laser welding device 10 performs laser welding on the right end of the blade battery 1 and the top cover 2; in this process, the direct drive motor 73 of the left welding clamping device 7 and the right welding clamping device 8 drives the clamping support plate 74, the battery upper pressing mechanism 75, the battery side pressing mechanism 76, the battery top cover clamping mechanism 77 and the blade battery 1 to rotate together, so that the two ends of the blade battery 1 are respectively welded to the corresponding top cover 2 in a circle, completing the laser full welding.

[0036] The present invention can use the centering assembly 61 to center the position of the blade battery 1 so that the blade battery 1 is aligned with the center of the machine, and can use the support clamping assembly 62 to support and clamp the middle of the blade battery 1 after the centering is completed, and then use the feeding assembly 63 to move the support clamping assembly 62 so that the left and right ends of the blade battery 1 on the support clamping assembly 62 are transferred to the left welding clamping device 7 and the right welding clamping device 8, thereby achieving precise feeding; the left welding clamping device 7 and the right welding clamping device 8 of the present invention are respectively provided with a battery upper pressing mechanism 75, a battery side pressing mechanism 76 and a battery top cover pressing mechanism 77, which are respectively installed on the pressing support plate 74, wherein the battery upper pressing mechanism 75 can By pressing the upper side of the blade battery 1, the battery side pressing mechanism 76 can press the front and rear sides of the blade battery 1, and the battery top cover pressing mechanism 77 can press the top cover at the end of the blade battery 1, so that the blade battery 1 can be positioned and fixed from the front, back, left, right and top cover end at the same time, so that the welding precision of the blade battery 1 can be guaranteed; the left welding pressing device 7 and the right welding pressing device 8 of the utility model are respectively provided with an air slip ring 72 assembly, and during the rotation process, the various cylinders of the left welding pressing device 7 and the right welding pressing device 8 will not have the problem of air pipe entanglement; the utility model is provided with a left laser welding device 9 and a right laser welding device 10, which can weld the two ends of the blade battery 1 at the same time, and the welding efficiency is high.

[0037] like Figure 3 and Figure 4As shown, a left translation assembly 51 is installed on the left end of the workbench 5, and the left translation assembly 51 includes a left guide rail 511, a left linear motor 512 and a left translation support plate 513. The left guide rail 511 extends in the left and right directions and is provided with two, the left linear motor 512 is installed between the two left guide rails 511, and the left translation support plate 513 is slidably installed on the left guide rail 511. The power output end of the left linear motor 512 is connected to the left translation support plate 513, and the left welding clamping device 7 and the left laser welding device 9 are respectively installed on the left translation support plate 513 A right translation assembly 52 is mounted on the right end of the workbench 5. The right translation assembly 52 includes a right guide rail 521, a right linear motor 522, and a right translation support plate 523. The right guide rail 521 extends in two directions, and the right linear motor 522 is mounted between the two right guide rails 521. The right translation support plate 523 is slidably mounted on the right guide rail 521. The power output end of the right linear motor 522 is connected to the right translation support plate 523. The right welding clamping device 8 and the right laser welding device 10 are respectively mounted on the right translation support plate 523. The workbench 5 of the present utility model is made of marble, which is stable, strong and durable. The utility model can utilize the left linear motor 512 of the left translation assembly 51 to drive the left translation support plate 513 to move left and right, thereby adjusting the left and right positions of the left welding clamping device 7 and the left laser welding device 9; the utility model can utilize the right linear motor 522 of the right translation assembly 52 to drive the right translation support plate 523 to move left and right, thereby adjusting the left and right positions of the right welding clamping device 8 and the right laser welding device 10, so that the utility model is compatible with blade batteries 1 of various length specifications.

[0038] like Figure 3 and Figure 14As shown, the left laser welding device 9 and the right laser welding device 10 are symmetrical on the left and right. The left laser welding device 9 and the right laser welding device 10 respectively include an X-axis transmission device 101, a Y-axis transmission device 102, a Z-axis transmission device 103, a machine head 104, a laser cutting head 105 and a CCD positioning camera 106; the X-axis transmission device 101 is installed on the left translation support plate 513 or the right translation support plate 523, the Y-axis transmission device 102 is installed on the X-axis transmission device 101, the Z-axis transmission device 103 is installed on the Y-axis transmission device 102, the machine head 104 is installed on the Z-axis transmission device 103, the laser cutting head 105 and the CCD positioning camera 106 are respectively installed on the machine head 104, and the CCD positioning camera 106 is used to accurately find the weld position of the blade battery 1 and the top cover 2, which is more efficient and has higher welding accuracy. The left laser welding device 9 and the right laser welding device 10 further include a light source lamp 107 respectively. The light source lamp 107 is installed on the machine head 104. The light source lamp 107 can illuminate the weld position to facilitate positioning by the CCD positioning camera 106.

[0039] like Figure 3 、 Figure 5-Figure 7 As shown, the centering assembly 61 of the centering feeding device 6 is installed on the middle part of the front end of the workbench 5, and the centering assembly 61 includes a left battery positioning frame 611, a left centering cylinder 612, a left centering baffle 613, a right battery positioning frame 614, a right centering cylinder 615 and a right centering baffle 616; the top of the left battery positioning frame 611 is provided with a supporting slide 6111 for supporting the left end of the blade battery 1, and the left cylinder seat 6121 is provided on the left side of the upper end of the left battery positioning frame 611. The centering cylinder 612 is mounted on the left cylinder seat 6121. The telescopic rod of the left centering cylinder 612 extends rightward and connects to the left centering baffle 613. The top of the right battery positioning frame 614 is provided with a support slide 6141 for supporting the right end of the blade battery 1. The right cylinder seat 6151 is provided on the right side of the upper end of the right battery positioning frame 614. The right centering cylinder 615 is mounted on the right cylinder seat 6151. The telescopic rod of the right centering cylinder 615 extends leftward and connects to the right centering baffle 616. When the blade battery 1 is placed on the support slide 6111 of the left battery positioning frame 611 and the support slide 6141 of the right battery positioning frame 614, the left and right centering cylinders 612 and 615 are controlled by a solenoid valve to operate simultaneously, pushing the left and right centering baffles 613 and 616 toward the center of the machine, thereby aligning the blade battery with the center of the machine.

[0040] like Figure 3 、 Figure 5-Figure 7As shown, the centering assembly 61 of the centering feeding device 6 also includes a guide rod 617, a forward and reverse screw rod 618, a left screw nut 619, a left nut seat 610, a left bearing 6101, a left bearing seat 6102, a right screw nut 6103, a right nut seat 6104, a right bearing 6105, a right bearing seat 6106 and a screw drive mechanism 6107; the guide rod 617 is provided with two parallel ones, the left end of the guide rod 617 is connected to the left bearing seat 6102, and the right end of the guide rod 617 is connected to the right bearing seat 6106; the left end of the forward and reverse screw rod 618 is provided with a forward thread, and the right end of the forward and reverse screw rod 618 is provided with a reverse thread, the left nut seat 610 is slidably installed on the guide rod 617, the left screw nut 619 is installed in the left nut seat 610, and the left end of the forward and reverse screw rod 618 moves through the left screw The nut 619 is threadedly matched with the left screw nut 619; the right nut seat 6104 is slidably installed on the guide rod 617, and the right screw nut 6103 is installed in the right nut seat 6104. The right end of the forward and reverse screw rod 618 moves through the right screw nut 6103 and is threadedly matched with the right screw nut 6103; the left bearing 6101 is installed in the left bearing seat 6102, and the left end of the forward and reverse screw rod 618 is installed in the left bearing 6101; the right bearing 6105 is installed in the right bearing seat 6106, and the right end of the forward and reverse screw rod 618 passes through the right bearing 6105 and is connected to the screw drive mechanism 6107; the left battery positioning frame 611 is installed on the left nut seat 610, and the right battery positioning frame 614 is installed on the right nut seat 6104. A left linear bearing 6108 is mounted within the left nut seat 610, through which the left end of the guide rod 617 slides. A right linear bearing 6109 is mounted within the right nut seat 6104, through which the right end of the guide rod 617 slides. The screw drive mechanism 6107 is a handwheel. By rotating the screw rod 618 forward and backward with the handwheel, the left nut seat 610 and the right nut seat 6104 can be simultaneously brought together or separated, thereby adjusting the spacing between the left battery positioning frame 611 and the right battery positioning frame 614, thereby accommodating blade batteries 1 of different lengths.

[0041] like Figure 3 、 Figure 5 、 Figure 8 and Figure 9As shown, the feeding assembly 63 of the centering feeding device 6 is installed above the middle part of the workbench 5. The feeding assembly 63 includes a linear transmission module 631, a module pad 632, and a module support seat 633. The linear transmission module 631 is installed above the module pad 632, and the module pad 632 is installed above the module support seat 633. The support clamping assembly 62 is installed above the linear transmission module 631, and the linear transmission module 631 is used to drive the support clamping assembly 62 to move back and forth. The support clamping assembly 62 of the centering feeding device 6 includes a battery lifting mechanism 621 and a battery clamping mechanism 622. The battery lifting mechanism 621 is used to support and drive the blade battery 1 to rise and fall. The battery clamping mechanism 622 is installed above the battery lifting mechanism 621 and is used to clamp or release the middle part of the blade battery 1. The battery lifting mechanism 621 includes a cylinder mounting plate 6211, a lifting cylinder 6212, a battery positioning groove 6213, a guide shaft 6214 and a linear bearing 6215; the lifting cylinder 6212 is installed on the middle part of the cylinder mounting plate 6211, and the cylinder telescopic rod of the lifting cylinder 6212 extends upward and connects to the bottom of the battery positioning groove 6213; there are four guide shafts 6214, and the four guide shafts 6214 are vertically installed on the four corners of the cylinder mounting plate 6211; there are four linear bearings 6215, and the four linear bearings 6215 are installed on the four corners of the battery positioning groove 6213, and the guide shaft 6214 passes through the corresponding linear bearings 6215 upward; support plates 6216 for supporting the blade battery 1 are installed on both sides of the upper end of the battery positioning groove 6213. The battery lifting mechanism 621 includes two buffer plates 6217, one of which is mounted on the upper ends of two guide shafts 6214, and the other is mounted on the upper ends of the other two guide shafts 6214. A hydraulic buffer 6218 is vertically mounted on each of the buffer plates 6217, with the lower ends of the hydraulic buffers 6218 abutting against the battery positioning slots 6213. The battery clamping mechanism 622 includes a static clamping plate 6221, a clamping cylinder 6222, and a dynamic clamping plate 6223. The static clamping plate 6221 is mounted on the rear end of the battery positioning slots 6213, and the clamping cylinder 6222 is mounted within the battery positioning slots 6213. The cylinder telescopic rod of the clamping cylinder 6222 extends forward and connects to the dynamic clamping plate 6223. The dynamic clamping plate 6223 cooperates with the static clamping plate 6221 to clamp or release the middle portion of the blade battery 1.

[0042] After the centering component 61 completes the centering of the blade battery 1, the lifting cylinder 6212 drives the battery positioning slot 6213 to rise, and the supporting plate 6216 of the battery positioning slot 6213 supports and lifts the blade battery 1, and then the clamping cylinder 6222 works to drive the dynamic clamping plate 6223 to move, and the dynamic clamping plate 6223 and the static clamping plate 6221 together clamp the middle part of the blade battery 1; then, the linear transmission module 631 of the feeding component 63 drives the supporting clamping component 62 to move, and accurately transfers the left and right ends of the blade battery 1 on the supporting clamping component 62 to the left welding clamping device 7 and the right welding clamping device 8; finally, the clamping cylinder 6222 drives the dynamic clamping plate 6223 to loosen and reset, and the linear transmission module 631 resets to the position of the centering component 61, completing the centering and precise feeding of the blade battery 1.

[0043] like Figure 3 、 Figure 10-13 As shown, the support seat 71 of the left welding clamping device 7 and the right welding clamping device 7 8 includes a support pad 711, a support vertical plate 712 and a reinforcement support plate 713. The support vertical plate 712 and the reinforcement support plate 713 are vertically installed on the support pad 711, and the support vertical plate 712 and the reinforcement support plate 713 are connected to each other; one side of the upper end of the support vertical plate 712 is fixedly connected to an air slip ring support column 721, and one end of the air slip ring support column 721 is installed with an air slip ring clamping block 722; the air slip ring 72 includes an air slip ring body 723, the air slip ring body 723 is installed on the air slip ring clamping block 722, and the air slip ring body 723 is provided with a rotatable air slip ring shaft 724; the upper end of the support vertical plate 712 is provided with a vertical plate through hole 7121, and the air slip ring shaft 724 moves through the vertical plate through hole 7121 and is connected to the motor connection block 731 of the direct drive motor 73.

[0044] like Figure 3 、 Figure 10-13As shown, the battery pressing mechanism 75 of the left welding clamping device 7 and the right welding clamping device 8 includes a pressing cylinder mounting plate 751, a pressing cylinder 752, a pressing cylinder driving plate 753, an upper pressing block connecting plate 754 and an upper pressing block 755. The pressing cylinder 752 mounting plate 751 is vertically installed on one side of the clamping support plate 74, and the pressing cylinder 752 is installed on the pressing cylinder 752 mounting plate 751. The power output end of the pressing cylinder 752 is connected to the pressing cylinder driving plate 753. The pressing cylinder 752 is used to drive the pressing cylinder driving plate 753 to rise or fall. The upper pressing block connecting plate 754 is horizontally installed on the lower end of the pressing cylinder driving plate 753. The upper pressing block 755 is installed on the end of the upper pressing block connecting plate 754 close to the direct drive motor 73. The clamping support plate 74 is provided with a support plate clamp 741, and the upper clamp 755 is positioned opposite to the support plate clamp 741. The battery clamping mechanism 75 also includes two reinforcing ribs 756, which are respectively connected to the upper clamping cylinder drive plate 753 and the upper clamp connecting plate 754; the upper clamp 755 is a copper clamp with high durability, and the copper clamp is detachably connected to the upper clamp connecting plate 754 by screws, which is convenient for replacing the copper clamp; the support plate clamp 741 is a copper clamp with high durability, and the copper clamp is detachably connected to the clamping support plate 74 by screws, which is convenient for replacing the copper clamp. Through the upward pressure of the battery clamping mechanism 75, the upper clamp 755 and the support plate clamp 741 can cooperate with each other to clamp the upper and lower sides of the end of the blade battery 1.

[0045] like Figure 3 、 Figure 10-13As shown, the battery side pressure mechanism 76 of the left welding clamping device 7 and the right welding clamping device 8 includes a static side pressure block connecting plate 761, a static side pressure block 762, a side pressure cylinder 763, a dynamic side pressure block connecting plate 764 and a dynamic side pressure block 765, wherein the static side pressure block connecting plate 761 is mounted on one end of the clamping support plate 74, the static side pressure block 762 is mounted on the end of the static side pressure block connecting plate 761 close to the direct drive motor 73, the side pressure cylinder 763 is mounted on the lower side of the clamping support plate 74, the power output end of the side pressure cylinder 763 is connected to the dynamic side pressure block 765 connecting plate 764, the dynamic side pressure block 765 is mounted on the end of the dynamic side pressure block 765 connecting plate 764 close to the direct drive motor 73, the static side pressure block connecting plate 761 is opposite to the dynamic side pressure block 765 connecting plate 764, and the static side pressure block 762 is opposite to the dynamic side pressure block 765. The static side pressure block 762 is a highly durable copper static pressure block. It is removably connected to the static side pressure block connecting plate 761 via screws for easy replacement. The dynamic side pressure block 765 is a highly durable copper dynamic pressure block. It is removably connected to the connecting plate 764 of the dynamic side pressure block 765 via screws for easy replacement. The lateral pressure of the battery lateral pressure mechanism 76 enables the static side pressure block 762 and the dynamic side pressure block 765 to cooperate with each other and together compress the front and rear sides of the end of the blade battery 1.

[0046] like Figure 3 、 Figure 10-13 As shown, the battery top cover clamping mechanism 77 of the left welding clamping device 7 and the right welding clamping device 8 includes a top cover clamping cylinder 771, a top cover clamping block connecting plate 772 and a top cover clamping block 773. The top cover clamping cylinder 771 is installed on the lower side of the clamping support plate 74. The power output end of the top cover clamping cylinder 771 is connected to the top cover clamping block connecting plate 772. The top cover clamping block 773 is installed on the upper end of the top cover clamping block connecting plate 772. The clamping support plate 74 is provided with an air-avoiding hole 742 for the top cover clamping block connecting plate 772 and the top cover clamping block 773 to pass through. The top cover clamping block 773 is a top cover clamping copper block with high durability. The top cover clamping copper block is detachably connected to the top cover clamping block connecting plate 772 by screws, which is convenient for replacement. Through the pressing action of the battery top cover pressing mechanism 77 , the top cover pressing block 773 can press the top cover 2 at the end of the blade battery 1 .

[0047] The above description is only a preferred embodiment of the present invention. Any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A high-precision laser full welding machine for blade battery top cover, characterized by: It comprises a frame, a workbench is installed on the frame, and a centering feeding device, a left welding clamping device, a right welding clamping device, a left laser welding device and a right laser welding device are installed on the workbench; the centering feeding device comprises a centering component, a supporting clamping component and a feeding component, the centering component is installed on the front middle part of the workbench, and the centering component is used to center the position of the blade battery; the supporting clamping component is installed on the feeding component, and is used to support and clamp the middle part of the blade battery; the feeding component is installed on the middle part of the workbench, and the feeding component is used to move the supporting clamping component and transfer the left and right ends of the blade battery on the supporting clamping component to the left welding clamping device and the right welding clamping device; the left welding clamping device and the right welding clamping device respectively comprise a support seat, an air slide Ring, direct drive motor, clamping support plate, battery upper pressure mechanism, battery side pressure mechanism and battery top cover clamping mechanism, the air slip ring and direct drive motor are respectively installed on the support seat, the direct drive motor is provided with a rotatable motor connecting block, the air slip ring is connected to the middle part of the motor connecting block, the clamping support plate is connected to the side of the motor connecting block, the battery upper pressure mechanism, battery side pressure mechanism and battery top cover clamping mechanism are respectively installed on the clamping support plate, the battery upper pressure mechanism is used to clamp the upper side of the blade battery, the battery side pressure mechanism is used to clamp the front and rear sides of the blade battery, the battery top cover clamping mechanism is used to clamp the top cover at the end of the blade battery; the left laser welding device is used for laser full welding of the top cover at the left end of the blade battery, and the right laser welding device is used for laser full welding of the top cover at the right end of the blade battery.

2. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: A left translation assembly is installed on the left end of the workbench, and the left translation assembly includes a left guide rail, a left linear motor and a left translation support plate. The left guide rail extends in the left and right directions and is provided with two, and the left linear motor is installed between the two left guide rails, and the left translation support plate is slidably installed on the left guide rail, and the power output end of the left linear motor is connected with the left translation support plate, and the left welding clamping device and the left laser welding device are respectively installed on the left translation support plate; a right translation assembly is installed on the right end of the workbench, and the right translation assembly includes a right guide rail, a right linear motor and a right translation support plate, and the right guide rail extends in the left and right directions and is provided with two, and the right linear motor is installed between the two right guide rails, and the right translation support plate is slidably installed on the right guide rail, and the power output end of the right linear motor is connected with the right translation support plate, and the right welding clamping device and the right laser welding device are respectively installed on the right translation support plate.

3. The high-precision blade battery top cover laser full welding machine according to claim 2 is characterized by: The left laser welding device and the right laser welding device respectively include an X-axis transmission device, a Y-axis transmission device, a Z-axis transmission device, a machine head, a laser cutting head and a CCD positioning camera; the X-axis transmission device is installed on the left translation support plate or the right translation support plate, the Y-axis transmission device is installed on the X-axis transmission device, the Z-axis transmission device is installed on the Y-axis transmission device, the machine head is installed on the Z-axis transmission device, the laser cutting head and the CCD positioning camera are respectively installed on the machine head, and the CCD positioning camera is used to accurately find the weld position of the blade battery top cover.

4. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: The centering assembly includes a left battery positioning frame, a left centering cylinder, a left centering baffle, a right battery positioning frame, a right centering cylinder and a right centering baffle; the top of the left battery positioning frame is provided with a supporting slide for supporting the left end of the blade battery, and a left cylinder seat is provided on the left side of the upper end of the left battery positioning frame. The left centering cylinder is installed on the left cylinder seat, and the cylinder telescopic rod of the left centering cylinder extends to the right and is connected to the left centering baffle; the top of the right battery positioning frame is provided with a supporting slide for supporting the right end of the blade battery, and a right cylinder seat is provided on the right side of the upper end of the right battery positioning frame. The right centering cylinder is installed on the right cylinder seat, and the cylinder telescopic rod of the right centering cylinder extends to the left and is connected to the right centering baffle.

5. The high-precision blade battery top cover laser full welding machine according to claim 4 is characterized in that: The centering assembly of the centering feeding device also includes a guide rod, a positive and negative screw rod, a left screw rod nut, a left nut seat, a left bearing, a left bearing seat, a right screw rod nut, a right nut seat, a right bearing, a right bearing seat and a screw rod driving mechanism; the guide rods are provided with two parallel rods, the left end of the guide rod is connected to the left bearing seat, and the right end of the guide rod is connected to the right bearing seat; the left end of the positive and negative screw rods is provided with a positive thread, and the right end of the positive and negative screw rods is provided with a reverse thread, the left nut seat is slidably mounted on the guide rod, the left screw rod nut is installed in the left nut seat, and the left end of the positive and negative screw rods moves through the left screw rod nut and It is threadedly matched with the left screw nut; the right nut seat is slidably installed on the guide rod, and the right screw nut is installed in the right nut seat. The right end of the forward and reverse screw rods moves through the right screw nut and is threadedly matched with the right screw nut; the left bearing is installed in the left bearing seat, and the left end of the forward and reverse screw rods is installed in the left bearing; the right bearing is installed in the right bearing seat, and the right end of the forward and reverse screw rods passes through the right bearing and is connected to the screw drive mechanism; the left battery positioning frame is installed on the left nut seat, and the right battery positioning frame is installed on the right nut seat.

6. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: The feeding assembly includes a linear transmission module, a module pad and a module support seat. The linear transmission module is installed on the module pad, and the module pad is installed on the module support seat; the support clamping assembly is installed on the linear transmission module, and the linear transmission module is used to drive the support clamping assembly to move forward and backward.

7. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: The support and clamping assembly of the centering feeding device includes a battery lifting mechanism and a battery clamping mechanism. The battery lifting mechanism is used to support and drive the blade battery to lift and lower. The battery clamping mechanism is installed on the battery lifting mechanism. The battery clamping mechanism is used to clamp or release the middle part of the blade battery; the battery lifting mechanism includes a cylinder mounting plate, a lifting cylinder, a battery positioning groove, a guide shaft and a linear bearing; the lifting cylinder is installed on the middle part of the cylinder mounting plate, and the cylinder telescopic rod of the lifting cylinder extends upward and connects to the bottom of the battery positioning groove; the guide shaft is provided with four, and the four guide shafts are vertically installed on the air cylinder. Four linear bearings are provided on the four corners of the cylinder mounting plate, and the four linear bearings are installed on the four corners of the battery positioning groove, and the guide shaft passes through the corresponding linear bearings upward; support plates for supporting blade batteries are installed on both sides of the upper end of the battery positioning groove; the battery clamping mechanism includes a static clamping plate, a clamping cylinder and a dynamic clamping plate, the static clamping plate is installed on the rear end of the battery positioning groove, and the clamping cylinder is installed in the battery positioning groove, the cylinder telescopic rod of the clamping cylinder extends forward and connects the dynamic clamping plate, and the dynamic clamping plate and the static clamping plate cooperate with each other to clamp or release the middle part of the blade battery.

8. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: The support base of the left welding clamping device and the right welding clamping device includes a support pad, a support vertical plate and a reinforcement support plate, the support vertical plate and the reinforcement support plate are vertically installed on the support pad, and the support vertical plate and the reinforcement support plate are connected to each other; one side of the upper end of the support vertical plate is fixedly connected to an air slip ring support column, and one end of the air slip ring support column is installed with an air slip ring clamping block; the air slip ring includes an air slip ring body, the air slip ring body is installed on the air slip ring clamping block, and the air slip ring body is provided with a rotatable air slip ring shaft; the upper end of the support vertical plate is provided with a vertical plate through hole, the air slip ring shaft moves through the vertical plate through hole, and is connected to the motor connection block of the direct drive motor.

9. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized by: The battery pressing mechanism of the left welding pressing device and the right welding pressing device includes an upper pressing cylinder mounting plate, an upper pressing cylinder, an upper pressing cylinder driving plate, an upper pressing block connecting plate and an upper pressing block. The upper pressing cylinder mounting plate is vertically installed on one side of the pressing support plate, and the upper pressing cylinder is installed on the upper pressing cylinder mounting plate. The power output end of the upper pressing cylinder is connected to the upper pressing cylinder driving plate. The upper pressing cylinder is used to drive the upper pressing cylinder driving plate to rise or fall. The upper pressing block connecting plate is horizontally installed at the lower end of the upper pressing cylinder driving plate, and the upper pressing block is installed at one end of the upper pressing block connecting plate close to the direct drive motor; the pressing support plate is provided with a support plate pressing block, and the upper pressing block and the support plate pressing block are positioned opposite to each other.

10. The high-precision blade battery top cover laser full welding machine according to claim 1 is characterized in that: The battery side pressure mechanism of the left welding clamping device and the right welding clamping device includes a static side pressure block connecting plate, a static side pressure block, a side pressure cylinder, a dynamic side pressure block connecting plate and a dynamic side pressure block, the static side pressure block connecting plate is installed on one end of the clamping support plate, the static side pressure block is installed on the end of the static side pressure block connecting plate close to the direct drive motor, the side pressure cylinder is installed on the lower side of the clamping support plate, the power output end of the side pressure cylinder is connected to the dynamic side pressure block connecting plate, and the dynamic side pressure block is installed on the dynamic side pressure block connecting plate At one end close to the direct drive motor, the static side pressure block connecting plate is opposite to the dynamic side pressure block connecting plate, and the static side pressure block is opposite to the dynamic side pressure block; the battery top cover clamping mechanism of the left welding clamping device and the right welding clamping device includes a top cover clamping cylinder, a top cover clamping block connecting plate and a top cover clamping block, the top cover clamping cylinder is installed on the lower side of the clamping support plate, the power output end of the top cover clamping cylinder is connected to the top cover clamping block connecting plate, and the top cover clamping block is installed on the upper end of the top cover clamping block connecting plate.

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