Welding equipment and welding process for electrolyte packaging container brackets of new energy vehicle batteries

Abstract

This invention discloses a welding device and welding process for a support bracket of electrolyte packaging container for new energy vehicle batteries. The device includes a welding support and a welding robot. The welding support comprises a support portion and a drive portion. The support portion includes a tilting frame and a clamp mounted on the tilting frame. The drive portion uses a first motor to drive a rotating frame to rotate forward, which in turn drives a second motor to rotate. The second motor then drives the tilting shaft to rotate in the opposite direction, thus achieving bidirectional rotation to adjust the angle of the welding support. In this invention, the drive portion uses a gear structure with two parts driving in opposite directions to adjust the angle. This overcomes the error caused by the spacing between adjacent teeth during gear adjustment, thereby improving adjustment accuracy. Combined with the welding robot, this ensures accurate welding position and improves welding quality.

Description

Technical Field

[0001] This invention relates to welding apparatus and process, and more particularly to welding apparatus and welding process for support brackets of electrolyte packaging containers for new energy vehicle batteries. Background Technology

[0002] Packaging containers for electrolyte in new energy vehicle batteries are used to store and transport electrolyte in new energy vehicle batteries. Because they are cylindrical barrels, they are not easy to lift and fix during transportation after being filled with electrolyte. Therefore, it is generally necessary to weld brackets onto the barrel to solve this problem.

[0003] If manual welding is used in the welding process of the bracket, it will lead to low efficiency and high cost. Therefore, most of the time, manual spot welding is used for positioning, and then a welding robot is used for secondary welding. During the welding process, a clamp is needed to fix the bracket, and the angle needs to be adjusted during the welding process.

[0004] Currently, fixed brackets on the market are generally driven to rotate by rotary cylinders or gear sets. However, rotary cylinders have internal gear and rack structures, so both methods have errors, namely errors caused by the tooth pitch between two adjacent teeth of the gear. This can lead to the fixed brackets not being able to be precisely adjusted in angle during the welding process, resulting in welding position deviations and affecting welding quality. Summary of the Invention

[0005] In view of the shortcomings of existing technologies, such as the inability to precisely adjust the angle of the fixed bracket, which leads to welding position deviation and affects welding quality, this invention provides a welding device and welding process for the bracket of the electrolyte packaging container of new energy vehicle battery.

[0006] The technical solution adopted by this invention to solve the above-mentioned technical problem is as follows: a welding device for a support bracket of a new energy vehicle battery electrolyte packaging container, comprising a welding support and a welding robot. The welding support includes a support part and a driving part. The support part includes a flipping frame and a clamp disposed on the flipping frame, wherein the clamp is provided; the driving part includes:

[0007] The supporting enclosure comprises two units mounted opposite each other on the ground;

[0008] The tilting shaft is rotatably mounted inside the support box and its inner end extends into the support box, and it is connected to the tilting frame.

[0009] The rotating frame is rotatably mounted inside the support box, and the tilting shaft is rotatably connected to the rotating frame on the same axis.

[0010] The drive motor includes a first motor and a self-locking second motor. The first motor is located outside the support box and its output end is connected to the rotating frame. The second motor is located on the rotating frame and its output end is connected to the tilting shaft. The rotating frame and the tilting shaft rotate simultaneously in opposite directions under the drive of the first motor and the second motor.

[0011] Preferably, the rotating frame is provided with a frame shaft and is supported by a bearing disposed in the support box. The frame shaft is provided with a first gear, and the output end of the first motor is provided with a second gear. The first gear and the second gear mesh.

[0012] Preferably, a third gear is provided on the flipping shaft, and a fourth gear is provided at the output end of the second motor. The third gear meshes with the fourth gear, and the transmission ratios between the first gear and the second gear, and between the third gear and the fourth gear are different.

[0013] Preferably, the welding robot includes a robotic arm with four degrees of freedom and a welding torch mounted on the robotic arm, and an automatic wire feeder for feeding wire to the welding torch.

[0014] Preferably, there are two welding supports, and the welding robot is positioned between the two welding supports.

[0015] Preferably, the end of the flipping shaft is provided with a connecting flange, the connecting flange is provided with several mounting holes, and the flipping frame is connected to the connecting flange by fasteners.

[0016] Preferably, the tilting frame includes two connecting arms and a support frame. One end of the two connecting arms is connected to a connecting flange on two tilting shafts, and the other end of the two connecting arms is detachably connected to both ends of the support frame.

[0017] Preferably, the support frame is detachably provided with several L-shaped limiting seats, the side walls of which abut against the support of the new energy vehicle battery electrolyte packaging container to limit the position of the new energy vehicle battery electrolyte packaging container support.

[0018] Preferably, the clamp includes several telescopic cylinders mounted on a support frame. The output end of the telescopic cylinder is provided with a clamping arm. The clamping arm is provided with a pressing rod and the end of the pressing rod is provided with a pressing block. The clamping arm includes a first pressing arm connected to the output end of the telescopic cylinder and a second pressing arm connected to the first pressing arm. The angles between the first pressing arm and the output end of the telescopic cylinder, and between the second pressing arm and the first pressing arm, are adjustable.

[0019] The welding process for the electrolyte packaging container bracket of new energy vehicle batteries, using the aforementioned welding device, includes the following steps:

[0020] S1, Clamping: After spot welding the support bracket for the electrolyte packaging container of the new energy vehicle battery, place it on the flipping frame and clamp it in place with a clamp.

[0021] S2, Welding: The welding robot is started to automatically weld the support frame of the new energy vehicle battery electrolyte packaging container. During welding, the drive part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container support frame.

[0022] In step S2, the first motor drives the rotating frame to rotate forward, the rotating frame drives the second motor to rotate, and the second motor drives the flipping shaft to rotate in the opposite direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, where a≠b. The number of rotations of the first motor and the second motor in the same time t are set to c and d, respectively, so that the first motor drives the rotating frame to rotate by E degrees and the second motor drives the rotating shaft to rotate by F degrees in time t. Then, taking (EF) as an adjustment unit, and assuming the required adjustment angle is M, the number of rotations required by the first motor is M˙c / (EF), and the number of rotations required by the second motor is M˙d / (EF).

[0023] Compared with the prior art, the advantages of the present invention are: In the present invention, the driving part adjusts the angle together through two gear structures that drive in opposite directions. During adjustment, the error caused by the spacing between adjacent teeth can be overcome, thereby improving the adjustment accuracy. When combined with a welding robot for welding, the welding position is accurate and the welding quality is improved. Attached Figure Description

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0025] Figure 1 and 2 This is a perspective view of Example 1;

[0026] Figure 3 A 3D view of one of the welding supports;

[0027] Figure 4 A 3D view of one of the welded supports (excluding the support box);

[0028] Figure 5 A 3D view of a welding robot;

[0029] Figure 6for Figure 4 Enlarged view of point A in the middle;

[0030] In the diagram: 10. Welding support; 101. Drive unit; 1010. Support box; 1011. First motor; 1012. Second gear; 1013. Rotating frame; 1014. Third gear; 1015. Connecting flange; 1016. Tilting shaft; 1017. Fourth gear; 1018. Second motor; 1019. Frame shaft; 1020. First gear; 102. Support unit; 1021. Connecting arm; 1022. Support frame; 1023. Limiting seat; 20. Welding robot; 201. Robotic arm; 202. Welding torch; 30. Fixture; 301. Telescopic cylinder; 302. First clamping arm; 303. Second clamping arm; 304. Clamping rod. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0032] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0033] Example 1

[0034] This embodiment mainly describes the title of the welding device for the packaging container bracket of new energy vehicle battery electrolyte. The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0035] A welding device for a support bracket of electrolyte packaging container for new energy vehicle batteries includes a welding support 10 and a welding robot 20. The welding support 10 includes a support part 102 and a drive part 101. The support part 102 includes a tilting frame and a clamp 30 disposed on the tilting frame. The drive part 101 includes:

[0036] Support box 1010, which includes two pairs disposed on the ground;

[0037] The tilting shaft 1016 is rotatably disposed inside the support box 1010 and its inner end extends into the support box 1010, and it is connected to the tilting frame.

[0038] The rotating frame 1013 is rotatably mounted inside the support box 1010, and the flipping shaft 1016 is rotatably connected to the rotating frame 1013 on the same axis.

[0039] The drive motor includes a first motor 1011 and a self-locking second motor 1018. The first motor 1011 is disposed outside the support housing 1010 and its output end is connected to the rotating frame 1013. The second motor 1018 is disposed on the rotating frame 1013 and its output end is connected to the flipping shaft 1016. The rotating frame 1013 and the flipping shaft 1016 rotate simultaneously in opposite directions under the drive of the first motor 1011 and the second motor 1018.

[0040] Preferably, the rotating frame 1013 is provided with a frame shaft 1019 and is supported by a bearing provided in the support box 1010. The frame shaft 1019 is provided with a first gear 1020, and the output end of the first motor 1011 is provided with a second gear 1012. The first gear 1020 and the second gear 1012 mesh.

[0041] Preferably, the flip shaft 1016 is provided with a third gear 1014, and the output end of the second motor 1018 is provided with a fourth gear 1017. The third gear 1014 and the fourth gear 1017 mesh, and the transmission ratios between the first gear 1020 and the second gear 1012, and between the third gear 1014 and the fourth gear 1017 are different.

[0042] Preferably, the welding robot 20 includes a robotic arm 201 with four degrees of freedom and a welding torch 202 mounted on the robotic arm 201. In addition, an automatic wire feeder is provided for feeding wire to the welding torch 202.

[0043] Preferably, there are two welding supports 10, and the welding robot 20 is positioned between the two welding supports 10.

[0044] Preferably, the end of the flipping shaft 1016 is provided with a connecting flange 1015, the connecting flange 1015 is provided with several mounting holes and the flipping frame is connected to the connecting flange 1015 by fasteners.

[0045] Preferably, the tilting frame includes two connecting arms 1021 and a support frame 1022. One end of the two connecting arms 1021 is connected to the connecting flange 1015 on the two tilting shafts 1016, and the other end of the two connecting arms 1021 is detachably connected to both ends of the support frame 1022.

[0046] Preferably, the support frame 1022 is detachably provided with a number of L-shaped limiting seats 1023, the side walls of the L-shaped limiting seats 1023 abutting against the new energy vehicle battery electrolyte packaging container bracket to limit the new energy vehicle battery electrolyte packaging container bracket.

[0047] Preferably, the clamp 30 includes a plurality of telescopic cylinders 301 disposed on the support frame 1022. The output end of the telescopic cylinder 301 is provided with a clamping arm. The clamping arm is provided with a pressing rod 304 and the end of the pressing rod 304 is provided with a pressing block. The clamping arm includes a first pressing arm 302 connected to the output end of the telescopic cylinder 301 and a second pressing arm 303 connected to the first pressing arm 302. The angle between the first pressing arm 302 and the output end of the telescopic cylinder 301, and between the second pressing arm 303 and the first pressing arm 302, are all adjustable.

[0048] Example 2

[0049] This embodiment mainly describes the welding process of the electrolyte packaging container bracket for new energy vehicle batteries. The technical solution adopted by this invention to solve the above-mentioned technical problems is as follows:

[0050] The welding process for the electrolyte packaging container bracket of new energy vehicle batteries, using the aforementioned welding device, includes the following steps:

[0051] S1, Clamping: After spot welding the support bracket for the electrolyte packaging container of the new energy vehicle battery, place it on the flipping frame and clamp it in place with a clamp.

[0052] S2, Welding: The welding robot is started to automatically weld the support frame of the new energy vehicle battery electrolyte packaging container. During welding, the drive part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container support frame.

[0053] In step S2, the first motor drives the rotating frame to rotate forward, the rotating frame drives the second motor to rotate, and the second motor drives the flipping shaft to rotate in the opposite direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, where a≠b. The number of rotations of the first motor and the second motor in the same time t are set to c and d, respectively, so that the first motor drives the rotating frame to rotate by E degrees and the second motor drives the rotating shaft to rotate by F degrees in time t. Then, taking (EF) as an adjustment unit, and assuming the required adjustment angle is M, the number of rotations required by the first motor is M˙c / (EF), and the number of rotations required by the second motor is M˙d / (EF). For example, if the rotation angle needs to be accurate to 0.1 degrees, and the specific rotation angle is 3.3 degrees, then EF = 0.1, and the two motors will rotate for 33t. Alternatively, EF = 3.3 degrees, and the final rotation angle can be controlled by adjusting the angle. If EF can be directly equal to the adjustment angle, the number of motor rotations can be reduced. If the adjustment angle cannot be directly obtained, then the value of EF is set to the minimum value of the required precision order, such as 0.1, 0.01, etc., and the final rotation angle is controlled by the number of motor rotations.

[0054] Both motors are servo motors, and the number of rotations and speed are precisely controlled by angle sensors and controllers. The shafts inside the support box are supported by bearings and rotate within the support box.

[0055] The above provides a detailed description of the welding device and welding process for the electrolyte packaging container bracket of new energy vehicle batteries provided by the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The above description of the embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A welding device for the support bracket of electrolyte packaging container for new energy vehicle batteries, characterized in that, The system includes a welding support and a welding robot. The welding support comprises a support portion and a drive portion. The support portion includes a tilting frame and a clamp mounted on the tilting frame. The drive portion includes: The supporting enclosure comprises two units mounted opposite each other on the ground; The tilting shaft is rotatably mounted inside the support box and its inner end extends into the support box, and it is connected to the tilting frame. The rotating frame is rotatably mounted inside the support box, and the tilting shaft is rotatably connected to the rotating frame on the same axis. The drive motor includes a first motor and a self-locking second motor. The first motor is located outside the support box and its output end is connected to the rotating frame. The second motor is located on the rotating frame and its output end is connected to the tilting shaft. The rotating frame and the tilting shaft rotate simultaneously in opposite directions under the drive of the first motor and the second motor. The rotating frame is equipped with a frame shaft and is supported by bearings installed in the support box. The frame shaft is equipped with a first gear, and the output end of the first motor is equipped with a second gear. The first gear and the second gear mesh. The tilting shaft is equipped with a third gear, and the output end of the second motor is equipped with a fourth gear. The third gear and the fourth gear mesh. The transmission ratios between the first gear and the second gear, and between the third gear and the fourth gear are different.

2. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 1, characterized in that, The welding robot includes a robotic arm with four degrees of freedom and a welding torch mounted on the robotic arm. In addition, there is an automatic wire feeder for feeding wire to the welding torch.

3. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 2, characterized in that, There are two welding supports, and the welding robot is positioned between the two welding supports.

4. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 3, characterized in that, The end of the tilting shaft is provided with a connecting flange, which has several mounting holes and the tilting frame is connected to the connecting flange by fasteners.

5. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 4, characterized in that, The tilting frame includes two connecting arms and a support frame. One end of the two connecting arms is connected to the connecting flanges on the two tilting shafts, and the other end of the two connecting arms is detachably connected to both ends of the support frame.

6. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 5, characterized in that, The support frame is detachably equipped with several L-shaped limiting seats. The side walls of the L-shaped limiting seats abut against the support of the new energy vehicle battery electrolyte packaging container to limit the support of the new energy vehicle battery electrolyte packaging container.

7. The welding device for the support bracket of the new energy vehicle battery electrolyte packaging container according to claim 6, characterized in that, The clamp includes several telescopic cylinders mounted on a support frame. The output end of the telescopic cylinder is provided with a clamping arm. The clamping arm is provided with a pressing rod and the end of the pressing rod is provided with a pressing block. The clamping arm includes a first pressing arm connected to the output end of the telescopic cylinder and a second pressing arm connected to the first pressing arm. The angles between the first pressing arm and the output end of the telescopic cylinder, and between the second pressing arm and the first pressing arm, are adjustable.

8. A welding process for the support bracket of an electrolyte packaging container for new energy vehicle batteries, characterized in that, Welding is performed using the welding device for the packaging container support of the new energy vehicle battery electrolyte as described in any one of claims 3-7, which includes the following steps: S1, Clamping: After spot welding the support bracket for the electrolyte packaging container of the new energy vehicle battery, place it on the flipping frame and clamp it in place with a clamp. S2, Welding: The welding robot is started to automatically weld the support frame of the new energy vehicle battery electrolyte packaging container. During welding, the drive part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container support frame. In step S2, the first motor drives the rotating frame to rotate in the forward direction, the rotating frame drives the second motor to rotate, and the second motor drives the flipping shaft to rotate in the reverse direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, where a≠b. The number of rotations of the first motor and the second motor in the same time t are set to c and d, respectively, so that the first motor drives the rotating frame to rotate by E degrees and the second motor drives the rotating shaft to rotate by F degrees in time t. Then, taking (EF) as an adjustment unit, and assuming the required adjustment angle is M, the number of rotations required by the first motor is M˙c / (EF), and the number of rotations required by the second motor is M˙d / (EF).

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