A battery box sheet metal part welding device

Abstract

The utility model relates to sheet metal part welding technical field, concretely relates to a kind of battery box sheet metal part welding device, including rack, mechanical arm with welding head at end, clamping mechanism of fixed battery box sheet metal part;The clamping mechanism includes: motor, ratchet part is installed on the output shaft of motor, the motor is aligned with first cylinder, and the piston rod of first cylinder is fixedly connected on mounting plate;The mounting plate is connected installation disc by connecting rod, and the ratchet part is connected fixed disc by connecting rod, and rotating disc is rotatably installed on the installation disc;Rotating part is installed between the position of fixed disc and rotating disc.In the utility model, the position of rotating disc and clamping plate is adjusted by first cylinder and second cylinder, and the air in adsorption hole is extracted by negative pressure pump, so that clamping plate, fixed disc and rotating disc can adsorb and fix sheet metal part, and the sheet metal part can be rotated and adjusted, and the welding of battery box sheet metal part is completed in one clamping positioning process.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal welding technology, specifically to a battery box sheet metal welding device. Background Technology

[0002] The battery box is a component that supports, fixes, and surrounds the battery system. It mainly includes an upper cover and a lower tray, as well as other auxiliary components such as transition parts, protective plates, bolts, etc. The power battery box has the function of supporting and protecting the power battery pack and electrical components. The battery box is usually made by welding sheet metal parts.

[0003] Sheet metal welding is a joining technique that uses pressure, heat, or both to fuse two or more thin sheets of metal together. Welding is performed at high temperatures; the workpiece is heated to its melting point, forming a weld pool. As the molten metal cools, it solidifies into a single piece, forming a weld. Sheet metal welding is primarily used in the manufacture of structural components and small tools, including ventilation ducts and other sheet metal parts.

[0004] Existing technologies, such as the invention patent with publication number CN118650316B, describe a laser welding fixture for battery boxes, which relates to the field of battery box welding fixture technology. This laser welding fixture includes a fixture support mechanism, a fixed rotation mechanism, and a peripheral pressing and fixing mechanism. The fixture support mechanism includes an operating table and legs, with the operating table fixed to the top of the legs. The fixed rotation mechanism includes a base plate, a motor, a first clamping plate, a lower pressure plate, a side pressure plate, a shaft, a hydraulic cylinder, and a second clamping plate. Through the cooperation of the lower pressure plate, side pressure plate, side pressing components, top pressing components, and the second clamping plate, the clamped box and lid rotate together to adjust the angle. This allows the entire welding operation to be completed in a single clamping and positioning operation, allowing for a full-coverage, multi-point adjustment of the gap between the box and lid. Compared to traditional single-sided welding methods, this laser welding fixture for battery boxes enables comprehensive multi-point adjustment, effectively improving the efficiency of battery box welding.

[0005] The device can weld the box and the lid together in one clamping and positioning process, but the sheet metal parts need to be welded into the box first, and the welding of the battery box sheet metal parts cannot be completed in one clamping and positioning process.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a welding device for battery box sheet metal parts that can effectively solve the above-mentioned technical problems.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted: a battery box sheet metal welding device, comprising: a frame, a robotic arm with a welding head installed at the end, and a clamping mechanism for fixing the battery box sheet metal parts;

[0009] The clamping mechanism includes: a motor, a ratchet component mounted on the output shaft of the motor, the motor being aligned with a first cylinder, the piston rod of the first cylinder being fixedly connected to a mounting plate; the mounting plate being connected to a mounting plate via a connecting rod, the ratchet component being connected to a fixed plate via a connecting rod, a rotating disk being rotatably mounted on the mounting plate; and a rotating component being mounted between the fixed disk and the rotating disk.

[0010] Furthermore, the ratchet component includes: a rotating ring, a rotating plate, helical teeth, and a deflection plate; the rotating ring is rotatably mounted on the frame, the rotating plate is fixedly mounted on the output shaft of the motor, helical teeth are circumferentially mounted on the rotating plate, and the deflection plate is hinged in a groove on the inner wall of the rotating ring; a torsion spring is installed at the hinge position between the deflection plate and the rotating ring.

[0011] Furthermore, the rotating component includes: a rotating frame, on which a second cylinder is circumferentially mounted, the piston rod of the second cylinder is fixedly connected to a clamping plate, and a limit rod is fixedly connected to the clamping plate, the limit rod sliding and passing through the rotating frame.

[0012] Furthermore, the rotating disk, the fixed disk, and the clamping plate are uniformly provided with adsorption holes; and a negative pressure pump is installed on the rotating disk, the fixed disk, and the clamping plate.

[0013] Furthermore, a support rod is fixedly connected between the rotating ring and the rotating frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a battery box sheet metal welding device, which adjusts the position of the rotating disk and the clamping plate by means of the first cylinder and the second cylinder, and extracts the air in the adsorption hole by means of the negative pressure pump, so that the clamping plate, the fixed disk and the rotating disk can adsorb and fix the sheet metal part, and can rotate and adjust the sheet metal part, and complete the welding of the battery box sheet metal part in one clamping and positioning process. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a structural schematic diagram of a battery box sheet metal welding device according to the present invention.

[0017] Figure 2 This is a schematic diagram of one side of the clamping mechanism in this utility model.

[0018] Figure 3 This is a schematic diagram of the other side of the clamping mechanism in this utility model.

[0019] Figure 4 This is a schematic diagram of the rotating component in this utility model.

[0020] Figure 5 This is a schematic diagram of the ratchet component in this utility model.

[0021] Figure 6 This is a schematic diagram of the rotating disk in this utility model.

[0022] In the diagram: 1. Frame; 2. Robotic arm; 3. Clamping mechanism; 31. Motor; 32. First cylinder; 33. Second cylinder; 34. Rotating frame; 35. Ratchet; 351. Rotating ring; 352. Rotating plate; 353. Helical gear; 354. Deflection plate; 36. Fixed plate; 37. Mounting plate; 38. Connecting rod; 39. Clamping plate; 310. Limiting rod; 311. Negative pressure pump; 312. Support rod; 313. Rotating plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 6 As shown, the present invention provides a battery box sheet metal welding device, comprising: a frame 1, a robotic arm 2 with a welding head installed at its end, and a clamping mechanism 3 for fixing the battery box sheet metal parts.

[0026] The clamping mechanism 3 includes: a motor 31, with a ratchet 35 mounted on the output shaft of the motor 31; the motor 31 is aligned with the first cylinder 32, and both the motor 31 and the first cylinder 32 are fixedly mounted on the frame 1; the piston rod of the first cylinder 32 is fixedly connected to a mounting plate, and a guide rod is fixedly connected to the mounting plate, which slides and passes through the frame 1 to prevent the mounting plate from deflecting; the mounting plate is connected to the mounting plate 37 via a connecting rod 38; the ratchet 35 is connected to the fixed plate 36 via the connecting rod 38, and the clamping mechanism 37 is also connected to the mounting plate 37. A rotating disk 313 is rotatably mounted on the mounting plate 37. The rotating disk 313 and the fixed disk 36 have internal cavities. The clamping ends of the rotating disk 313 and the fixed disk 36 are evenly provided with adsorption holes. A negative pressure pump 311 is installed on the other end of the rotating disk 313 and the fixed disk 36. The negative pressure pump 311 extracts the air from the internal cavities of the rotating disk 313 and the fixed disk 36, so that the adsorption holes can adsorb the sheet metal parts. A rotating component is installed between the fixed disk 36 and the rotating disk 313.

[0027] The ratchet component 35 includes: a rotating ring 351, a rotating plate 352, helical teeth 353, and a deflection plate 354. The rotating ring 351 is rotatably mounted on the frame 1, and the rotating ring 351 and the rotating plate 352 are concentric. The rotating plate 352 is fixedly mounted on the output shaft of the motor 31. Helical teeth 353 are installed on the circumference of the rotating plate 352. The deflection plate 354 is hinged in a groove on the inner wall of the rotating ring 351 and is located on one side of the groove, so that the deflection plate 354 can only be pushed to rotate in one direction by the helical teeth 353. A torsion spring is installed at the hinge position between the deflection plate 354 and the rotating ring 351. When the deflection plate 354 is deflected by an external force, the torsion spring twists. When the external force is lost, the elasticity of the torsion spring pushes the deflection plate 354 to reset.

[0028] When the output shaft of motor 31 rotates forward, the output shaft of motor 31 drives the rotating plate 352 to rotate, the rotating plate 352 drives the helical gear 353 to rotate, and the inclined surface on the helical gear 353 pushes the deflection plate 354 to deflect, and the rotating ring 351 does not rotate; when the output shaft of motor 31 rotates in reverse, the deflection plate 354 blocks the helical gear 353, and the helical gear 353 pushes the rotating ring 351 to rotate.

[0029] The rotating component includes: a rotating frame 34, which is a three-quarter ring, and a support rod 312 is fixedly connected to the rotating frame 34. The other end of the support rod 312 is fixedly connected to the rotating ring 351. A second cylinder 33 is circumferentially mounted on the rotating frame 34. The piston rod of the second cylinder 33 is fixedly connected to a clamping plate 39. The inner wall of the clamping plate 39 has an inner cavity. Adsorption holes are evenly distributed on the clamping surface of the clamping plate 39. A negative pressure pump 311 is installed on the other side of the clamping plate 39. The negative pressure pump 311 extracts the air from the inner cavity and adsorption holes of the clamping plate 39, so that the clamping plate 39 can adsorb and fix the sheet metal part. A limit rod 310 is also fixedly connected to the clamping plate 39. The limit rod 310 slides and passes through the rotating frame 34 to prevent the clamping plate 39 from rotating and affecting the clamping and fixing of the sheet metal part.

[0030] Furthermore, elastic pads are installed on the clamping surfaces or clamping ends of the clamping plate 39, rotating disk 313 and fixed disk 36. The elastic pads are provided with through holes aligned with the adsorption holes, which can make them fit tightly against the sheet metal parts through deformation, avoiding the problem of unevenness on the sheet metal parts causing adsorption failure.

[0031] Furthermore, positioning rods are provided on the clamping plate 39, the rotating disk 313, and the fixed disk 36, and positioning holes are provided on the sheet metal parts, so that the positioning rods can pass through the positioning holes, which facilitates the positioning of the sheet metal parts and improves the efficiency and accuracy of fixing the sheet metal parts.

[0032] Working principle:

[0033] The sheet metal parts are mounted on the clamping plate 39, the fixed plate 36, and the rotating plate 313 respectively through the positioning holes on the sheet metal parts. The negative pressure pump 311 is started to adsorb and fix the sheet metal parts. The first cylinder 32 and the second cylinder 33 are started to make the rotating plate 313 and the clamping plate 39 move the sheet metal parts closer to each other, thereby assembling the battery box. The robotic arm 2 drives the welding head to weld the welds at both ends of the battery box. The motor 31 is started, and the output shaft of the motor 31 reverses, so that the output shaft of the motor 31 drives the support rod 3 through the ratchet 35. The rotating frame 34 rotates, causing the battery box to rotate, which facilitates the welding head to weld the welds at both ends of the battery box. Then, the negative pressure pump 311 on the clamping plate 39 stops, and the piston rod of the second cylinder 33 drives the clamping plate 39 away from the sheet metal surface. The output shaft of the motor 31 rotates forward, causing the rotating plate 352 to drive the fixed plate 36 to rotate through the connecting rod 38, thereby causing the battery box to rotate, which facilitates the welding head to weld the welds on the side of the battery box. The welding of the sheet metal part of the battery box is completed in one clamping and positioning process, improving the welding efficiency.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A welding device for sheet metal parts of a battery box, characterized in that, include: The frame, the robotic arm with a welding head at the end, and the clamping mechanism for fixing the sheet metal parts of the battery box; The clamping mechanism includes: a motor, a ratchet component mounted on the output shaft of the motor, the motor being aligned with a first cylinder, the piston rod of the first cylinder being fixedly connected to a mounting plate; the mounting plate being connected to a mounting plate via a connecting rod, the ratchet component being connected to a fixed plate via a connecting rod, a rotating disk being rotatably mounted on the mounting plate; and a rotating component being mounted between the fixed disk and the rotating disk.

2. The battery box sheet metal welding device as described in claim 1, characterized in that, The ratchet component includes: a rotating ring, a rotating plate, helical teeth, and a deflecting plate; the rotating ring rotates securely. Mounted on the frame, the rotating plate is fixedly mounted on the output shaft of the motor. The rotating plate is circumferentially equipped with helical teeth. The deflection plate is hinged in a groove on the inner wall of the rotating ring. A torsion spring is installed at the hinge position between the deflection plate and the rotating ring.

3. The battery box sheet metal welding device as described in claim 1, characterized in that, The rotating component includes: a rotating frame, on which a second cylinder is circumferentially mounted; a clamping plate is fixedly connected to the piston rod of the second cylinder; a limit rod is fixedly connected to the clamping plate; and the limit rod slides through the rotating frame.

4. The battery box sheet metal welding device as described in claim 3, characterized in that, The rotating disk, fixed disk, and clamping plate are uniformly provided with adsorption holes; a negative pressure pump is installed on each of the rotating disk, fixed disk, and clamping plate.

5. The battery box sheet metal welding device as described in claim 2, characterized in that, A support rod is fixedly connected between the rotating ring and the rotating frame.

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