A new energy automobile battery box welding equipment

Abstract

The application discloses a new energy automobile battery box welding equipment, and belongs to the technical field of new energy automobile battery processing equipment. The device comprises a supporting installation base, a tensioning assembly is installed in the installation base, and a welding assembly is installed on the upper surface of the installation base; the tensioning assembly comprises a tensioning cylinder, a lower horizontal bevel gear, a following rotating disc, a tensioning rod, a roller and an expansion cylinder, internal tensioning and expansion are realized through rotary resistance pushing, the welding assembly comprises an L-shaped installation cover, a vertical bevel gear, a transmission belt wheel, a lifting shaft, a threaded lifting rod and a stationary threaded sleeve, and welding gun lifting adjustment is completed through spiral transmission. The single driving source linkage is used for realizing internal tensioning positioning and welding gun height adjustment of the box, the device can be adapted to clamping of boxes of different specifications, the driving structure of the device is simplified, welding positioning precision and operation running continuity are improved, and the problems of poor adaptability of traditional tooling and redundant driving structure are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle battery processing equipment technology, and in particular to a new energy vehicle battery box welding equipment. Background Technology

[0002] New energy vehicle battery box welding equipment is a specialized processing equipment designed for the assembly process of battery metal boxes. Its core is to clamp and fix the box through an internal tensioning and positioning mechanism, and work with the welding execution mechanism to complete the continuous welding operation of the box joints. It is a key piece of equipment to ensure the sealing performance and structural strength of the battery box.

[0003] Existing battery box welding operations generally suffer from two major problems: poor tooling adaptability and redundant drive structures. On the one hand, traditional internal tensioning fixtures are mostly fixed-size structures, requiring the replacement of corresponding fixtures for different specifications of battery boxes, resulting in time-consuming clamping and adjustment, and making it difficult to adapt to the flexible production needs of multiple box models. On the other hand, the tensioning mechanism and welding lifting mechanism often use independent drive sources, resulting in a complex overall equipment structure, and the linkage precision between the two is insufficient, making it easy for the welding head height adjustment to deviate, affecting the uniformity of circumferential welding of the box and the work efficiency. To address these issues, a new energy vehicle battery box welding equipment is proposed. Summary of the Invention

[0004] To overcome the above shortcomings, this invention provides a welding equipment for new energy vehicle battery boxes, which aims to improve the problems of poor adaptability, low clamping efficiency, redundant welding lifting and adjustment structure, and insufficient linkage positioning accuracy of existing battery box welding fixtures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welding equipment for a new energy vehicle battery box, comprising a mounting base that provides support, a tensioning component installed inside the mounting base, and a welding component installed on the upper surface of the mounting base;

[0006] The tensioning assembly includes a tensioning cylinder mounted on the center of the upper surface of the mounting base. A rotating spindle passes through the tensioning cylinder, and a lower horizontal bevel gear is fixedly mounted on the rotating spindle. The lower horizontal bevel gear is located above the lower surface of the inner wall of the tensioning cylinder. A following turntable is fixedly mounted on the rotating spindle above the lower horizontal bevel gear. Four U-shaped mounting brackets are evenly mounted circumferentially on the upper surface of the following turntable. A tensioning rod is movably connected to the upper end of each U-shaped mounting bracket via a movable pin. The side of each tensioning rod closest to the upper end of the tensioning cylinder abuts against a corresponding roller. The upper surface of the inner wall of the tensioning cylinder is... The assembly includes an expansion cylinder with four rollers evenly arranged on its circumferential surface; the welding assembly includes an L-shaped mounting cover mounted on the upper surface of the mounting base, a vertical bevel gear rotatably mounted on the vertical end inside the L-shaped mounting cover, a vertical bevel gear meshing with the rear side of the lower horizontal bevel gear, a transmission pulley coaxially fixedly mounted on the rear side of each vertical bevel gear, an upper horizontal bevel gear meshing with the front side of the upper end of the upper vertical bevel gear, a lifting shaft fixedly mounted in the middle of the upper horizontal bevel gear, a threaded lifting rod mounted on the lower end of the lifting shaft, and a stationary threaded sleeve sleeved on the outside of the threaded lifting rod.

[0007] As a further description of the above technical solution: a controller is installed on the front side of the mounting base, and a drive shaft is passed through the middle of the two vertical bevel gears. The front end and rear end of each drive shaft are fixedly connected to the corresponding vertical bevel gear and the drive pulley, respectively. The two drive pulleys are connected by belt drive, and both sets of drive shafts are rotatably supported on the inner wall of the L-shaped mounting cover by bearing seats.

[0008] As a further description of the above technical solution: a first set of hinge frames is provided at the middle of the side of each tensioning rod away from the tensioning cylinder, and a spring damping rod is obliquely installed on the first set of hinge frames. The end of each spring damping rod away from the first set of hinge frames is installed on a second set of hinge frames on the upper surface of the following turntable.

[0009] As a further description of the above technical solution: the outer wall of the tensioning cylinder is provided with an arc-shaped opening corresponding to the tensioning rod, and a T-shaped support rod is connected to the upper end of the side of each tensioning rod away from the tensioning cylinder.

[0010] As a further description of the above technical solution: the end of each T-shaped support rod away from the tensioning rod is inserted into the arc-shaped opening on the outer wall of the tensioning cylinder, and an anti-slip pad is fixedly connected to the end of each T-shaped support rod that protrudes from the arc-shaped opening.

[0011] As a further description of the above technical solution: each of the spring damping rods is equipped with a hinge plate at its upper and lower ends, and each of the spring damping rods is hinged to the first set of hinge frames and the second set of hinge frames through the hinge plate and the hinge shaft.

[0012] As a further description of the above technical solution: the lower horizontal bevel gear is fixedly fitted onto the outer wall of the rotating spindle, the upper end of the rotating spindle is fixedly connected to the middle of the lower surface of the following turntable, the lower end of the rotating spindle is connected to the vertical motor via a coupling and a support shaft, and the vertical motor is equipped with a power-off brake structure.

[0013] As a further description of the above technical solution: a limiting frame is installed on the outside of each roller, the external structure of the limiting frame is arc-shaped, a groove is opened on the upper surface of each roller, and each limiting frame is installed on the surface of the extension cylinder by fixing bolts.

[0014] As a further description of the above technical solution: the rear end of the stationary threaded sleeve is connected to a support beam, and the end of the support beam away from the stationary threaded sleeve is fixedly connected to the front side of the L-shaped mounting cover.

[0015] As a further description of the above technical solution: a welding gun connecting frame is installed at the lower end of the threaded lifting rod, and multiple threaded holes are opened on the outside of the welding gun connecting frame for connecting a suitable welding gun.

[0016] The present invention has the following beneficial effects:

[0017] 1. In this invention, a vertical motor drives a turntable to rotate the tensioning rod circumferentially. A fixed roller provides continuous radial resistance to the tensioning rod, causing it to swing outwards around the hinge point and expand its diameter. This causes the T-shaped support rod to extend along the arc and abut against the inner wall of the battery box. Combined with the elastic buffer provided by the spring damping rod and the friction reinforcement of the anti-slip pad, stepless internal tensioning for battery boxes with different inner diameters is achieved. Clamping and positioning can be completed quickly without changing tooling fixtures, while ensuring uniform and controllable tension, preventing scratches and damage to the workpiece, and effectively improving clamping efficiency and positioning stability during welding.

[0018] 2. In this invention, a single vertical motor outputs power through a lower horizontal bevel gear. The rotational power is transmitted upward to the lifting mechanism via a belt drive and multi-stage bevel gear meshing. In conjunction with the spiral transmission pair formed by the threaded lifting rod and the stationary threaded sleeve, the rotational motion is converted into vertical linear displacement to drive the lifting and adjustment of the welding torch connecting frame. This achieves simultaneous driving of tensioning and welding height adjustment by a single drive source, simplifying the overall drive structure of the equipment. At the same time, it ensures the linkage and coordination between tensioning action and welding lifting and adjustment, improves welding positioning accuracy, and ensures the uniformity and continuity of the circumferential welding of the box. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a welding equipment for a new energy vehicle battery box proposed in this invention;

[0020] Figure 2This is a cross-sectional structural diagram of a welding equipment for a new energy vehicle battery box proposed in this invention;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the transmission structure between the lower horizontal bevel gear, the upper horizontal bevel gear, and the vertical bevel gear in a welding equipment for a new energy vehicle battery box proposed in this invention.

[0023] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the tensioning cylinder and arc-shaped opening structure of a welding equipment for a new energy vehicle battery box proposed in this invention;

[0025] Figure 7 This is a schematic diagram of the surface structure of the expansion cylinder of a welding equipment for a new energy vehicle battery box proposed in this invention;

[0026] Figure 8 This is a schematic diagram of the upper surface structure of the follower turntable of a welding equipment for a new energy vehicle battery box proposed in this invention;

[0027] Figure 9 for Figure 8 Enlarged view of point C.

[0028] Legend:

[0029] 1. Mounting base; 2. Tensioning assembly; 201. Tensioning cylinder; 202. Lower horizontal bevel gear; 203. Follower turntable; 204. U-shaped mounting bracket; 205. Tensioning rod; 206. Roller; 207. Controller; 208. Drive shaft; 209. First set of hinge brackets; 210. Spring damping rod; 211. Second set of hinge brackets; 212. Arc-shaped opening; 213. T-shaped support rod; 214. Anti-slip pad; 215. Hinge plate; 216. 217. Rotary spindle; 218. Vertical motor; 219. Limiting bracket; 220. Groove; 221. Hinge shaft; 222. Extension cylinder; 3. Welding assembly; 301. L-shaped mounting cover; 302. Vertical bevel gear; 303. Transmission pulley; 304. Lifting shaft; 305. Threaded lifting rod; 306. Stationary threaded sleeve; 307. Support beam; 308. Welding torch connecting frame; 309. Belt; 310. Upper horizontal bevel gear; 311. Threaded hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figures 1-9 An embodiment of a welding equipment for a new energy vehicle battery box provided by the present invention:

[0032] A welding device for a new energy vehicle battery box includes a mounting base 1 that provides support, a tensioning component 2 installed inside the mounting base 1, and a welding component 3 installed on the upper surface of the mounting base 1.

[0033] As a further improvement to the above technical solution: the tensioning assembly 2 includes a tensioning cylinder 201 installed in the middle of the upper surface of the mounting base 1. A rotating spindle 216 is installed inside the tensioning cylinder 201. A lower horizontal bevel gear 202 is fixedly mounted on the rotating spindle 216. The lower horizontal bevel gear 202 is located above the lower surface of the inner wall of the tensioning cylinder 201. A following turntable 203 is fixedly installed on the rotating spindle 216 above the lower horizontal bevel gear 202. Four U-shaped mounting brackets 204 are evenly installed in the circumferential direction on the upper surface of the following turntable 203. Each U-shaped mounting bracket 204 is movably connected to a tensioning rod 205 through a movable pin. The side of each tensioning rod 205 near the upper end of the tensioning cylinder 201 abuts against a corresponding roller 206. An extension cylinder 221 is installed on the upper surface of the inner wall of the tensioning cylinder 201. Four rollers 206 are evenly arranged on the circumferential surface of the extension cylinder 221.

[0034] A controller 207 is installed on the front side of the mounting base 1. A drive shaft 208 is passed through the middle of the two vertical bevel gears 302. The front and rear ends of each drive shaft 208 are fixedly connected to the corresponding vertical bevel gear 302 and the drive pulley 303, respectively. The two drive pulleys 303 are connected by a belt 309. Both sets of drive shafts 208 are rotatably supported on the inner wall of the L-shaped mounting cover 301 through bearing seats.

[0035] Each tensioning rod 205 has a first set of hinge frames 209 located at the center of the side away from the tensioning cylinder 201. A spring damping rod 210 is obliquely installed on the first set of hinge frames 209. The end of each spring damping rod 210 away from the first set of hinge frames 209 is installed on the second set of hinge frames 211 on the upper surface of the following turntable 203.

[0036] The outer wall of the tensioning cylinder 201 has an arc-shaped opening 212 corresponding to the tensioning rod 205, and a T-shaped support rod 213 is connected to the upper end of the side of each tensioning rod 205 away from the tensioning cylinder 201.

[0037] Each T-shaped support rod 213 has one end away from the tension rod 205 inserted into the arc-shaped opening 212 on the outer wall of the tensioning cylinder 201, and an anti-slip pad 214 is fixedly connected to one end of each T-shaped support rod 213 that protrudes from the arc-shaped opening 212.

[0038] Each spring damping rod 210 has a hinge plate 215 installed at its upper and lower ends. Each spring damping rod 210 is hinged to the first set of hinge frames 209 and the second set of hinge frames 211 through the hinge plate 215 and the hinge shaft 220.

[0039] The lower horizontal bevel gear 202 is fixedly mounted on the outer wall of the rotating spindle 216. The upper end of the rotating spindle 216 is fixedly connected to the middle of the lower surface of the following turntable 203. The lower end of the rotating spindle 216 is connected to the vertical motor 217 through a coupling and a support shaft. The vertical motor 217 is equipped with a power-off brake structure.

[0040] Each roller 206 is equipped with a limit frame 218 on its outer side. The external structure of the limit frame 218 is arc-shaped. Each roller 206 has a groove 219 on its upper surface. Each limit frame 218 is installed on the surface of the extension cylinder 221 by fixing bolts.

[0041] Specifically, by installing a tensioning cylinder 201 in the middle of the upper surface of the mounting base 1 as the bearing base of the tensioning assembly 2, the rotating spindle 216 is inserted into the tensioning cylinder 201, and a lower horizontal bevel gear 202 is fixedly mounted on the rotating spindle 216, so that the upper end of the rotating spindle 216 is fixedly connected to the lower surface of the following turntable 203. The power output by the vertical motor 217 is transmitted to the rotating spindle 216 through the coupling and the support shaft, which synchronously drives the lower horizontal bevel gear 202 and the following turntable 203 to rotate. At the same time, the lower horizontal bevel gear 202 meshes with the rear transmission structure to split the power, thereby realizing the simultaneous output of tensioning rotation power and welding adjustment power from a single drive source, achieving the effect of simplifying the equipment drive structure and reducing layout redundancy.

[0042] The structure employs four sets of U-shaped mounting brackets 204 evenly arranged circumferentially on the upper surface of the follower turntable 203. The lower end of the tension rod 205 is hinged to the inside of the U-shaped mounting bracket 204 via a movable pin. In conjunction with the four rollers 206 arranged circumferentially on the upper expansion cylinder 221 of the inner wall of the tension cylinder 201, the upper side wall of the tension rod 205 near the cylinder wall always abuts against the surface of the corresponding roller 206. When the follower turntable 203 drives the tension rod 205 to perform circumferential revolution, the fixed rollers 206 generate a continuous radial thrust on the tension rod 205, causing the tension rod 205 to swing outward around the lower hinge point, thereby achieving continuous stepless adjustment of the tension diameter and adapting to the internal clamping requirements of battery boxes with different inner diameter specifications.

[0043] By utilizing the hinge plates 215 and hinge shafts 220 at both ends of the spring damping rod 210, the spring damping rod 210 is inclinedly hinged between the first set of hinge frames 209 on the outer middle of the tension rod 205 and the second set of hinge frames 211 on the surface of the following turntable 203. This provides elastic tension and damping buffer for the swinging process of the tension rod 205, thereby offsetting the impact force during the tensioning start and operation process, preventing sudden changes in tension force from scratching and damaging the inner wall of the battery box, and providing stable contraction tension during reverse reset to assist the tension rod 205 in smooth retraction, achieving the effect of uniform and controllable tension force and flexible clamping adaptation.

[0044] By connecting a T-shaped support rod 213 to the upper outer side of the tension rod 205, and opening an arc-shaped opening 212 at the corresponding position on the outer wall of the tension cylinder 201 to match the movement trajectory of the support rod, the outer end of the T-shaped support rod 213 passes through the arc-shaped opening 212 and is fixedly installed with an anti-slip pad 214. The arc-shaped opening 212 is used to guide the movement trajectory of the T-shaped support rod 213 radially and limit its movement circumferentially. When the tension rod 205 swings outward, it drives the T-shaped support rod 213 to extend outward smoothly along the arc-shaped opening 212, so that the anti-slip pad 214 fits tightly against the inner wall of the battery box, thereby increasing the friction of the clamping contact surface, preventing the box from shifting circumferentially during the welding operation, and improving the stability of the clamping and positioning.

[0045] An arc-shaped limiting frame 218 is used to laterally limit and reinforce each roller 206. The limiting frame 218 is locked and installed on the outer wall surface of the extension cylinder 221 by fixing bolts. The groove 219 opened on the upper surface of the roller 206 is used for fitting and positioning, thereby restraining the axial movement and radial offset of the roller 206. This ensures that the contact surface between the roller 206 and the tensioning rod 205 is accurate and stable, and avoids the displacement of the roller 206 after long-term operation, which would lead to a decrease in tension accuracy. This achieves the effect of improving the long-term reliability of the mechanism.

[0046] The controller 207 on the front of the mounting base 1 is electrically connected to the vertical motor 217. The controller 207 uniformly controls the forward and reverse directions, operating speed and start and stop sequence of the vertical motor 217, thereby precisely controlling the expansion range and tension holding force of the tensioning mechanism. At the same time, it also controls the lifting and adjusting action of the welding assembly 3, realizing the coordinated cooperation between the box clamping and positioning and the welding height adjustment, ensuring the orderly progress of the overall operation process.

[0047] As a further improvement to the above technical solution: the welding assembly 3 includes an L-shaped mounting cover 301 mounted on the upper surface of the mounting base 1. A vertical bevel gear 302 is rotatably arranged at the vertical end inside the L-shaped mounting cover 301. A vertical bevel gear 302 is meshed with the rear side of the lower horizontal bevel gear 202. A transmission pulley 303 is coaxially fixedly mounted on the rear side of each vertical bevel gear 302. An upper horizontal bevel gear 310 is meshed with the front side of the upper end of the upper vertical bevel gear 302. A lifting shaft 304 is fixedly mounted in the middle of the upper horizontal bevel gear 310. A threaded lifting rod 305 is installed at the lower end of the lifting shaft 304. A stationary threaded sleeve 306 is sleeved on the outside of the threaded lifting rod 305.

[0048] The rear end of the stationary threaded sleeve 306 is connected to a support beam 307, and the end of the support beam 307 away from the stationary threaded sleeve 306 is fixedly connected to the front side of the L-shaped mounting cover 301.

[0049] The lower end of the threaded lifting rod 305 is equipped with a welding gun connecting frame 308. The welding gun connecting frame 308 has multiple threaded holes 311 on its exterior for connecting a suitable welding gun.

[0050] Specifically, by installing an L-shaped mounting cover 301 on the mounting base 1 as the mounting support base for the welding assembly 3, vertical bevel gears 302 and corresponding transmission pulleys 303 are installed on the vertical end and the rear side of the lower horizontal bevel gear 202, respectively. The two sets of transmission pulleys 303 are connected by a belt 309 to achieve synchronous transmission. The rotational power output by the lower horizontal bevel gear 202 is diverted upward to the upper vertical bevel gear 302, thereby realizing the simultaneous driving of the tensioning mechanism and the welding lifting mechanism by a single drive source, achieving the effect of simplifying the power system and reducing the overall size of the equipment.

[0051] The transmission structure, in which the upper vertical bevel gear 302 meshes with the upper horizontal bevel gear 310, converts the vertical rotational motion into horizontal axial rotational motion, driving the lifting shaft 304 to rotate synchronously. In conjunction with the stationary threaded sleeve 306 sleeved on the outside of the threaded lifting rod 305, the rotational motion is converted into vertical linear displacement by the transmission action of the threaded pair, thereby driving the lower welding torch connecting frame 308 to complete the lifting and adjustment, realizing precise control of the welding height, and adapting to the welding needs of battery boxes of different height specifications.

[0052] The support beam 307 connects the stationary threaded sleeve 306 to the front of the L-shaped mounting cover 301, forming a stable cantilever support for the stationary threaded sleeve 306. This supports the reverse force during the lifting process and the vibration load of the welding operation, thereby preventing the threaded sleeve from swaying and ensuring the coaxiality and stability of the threaded lifting rod 305. This improves the lifting adjustment accuracy and ensures the accuracy of the welding position.

[0053] By installing a welding gun connecting frame 308 at the lower end of the threaded lifting rod 305 and opening multiple sets of threaded holes 311 on its exterior, different models of welding gun heads and auxiliary tooling can be installed through bolt fasteners, thereby improving the equipment's adaptability to working conditions, meeting the clamping requirements of different welding processes, achieving the effect of multi-purpose machine and reducing production support costs.

[0054] The entire welding lifting mechanism is controlled by the controller 207. By controlling the forward and reverse rotation and the number of revolutions of the drive motor, the lifting stroke and dwell position of the welding torch are precisely limited. This coordinates with the clamping action of the tensioning component 2 to ensure the orderly connection and progress of the box positioning and welding process.

[0055] Working principle

[0056] The operator first places the battery box to be welded on the outside of the tensioning cylinder 201 from above, and starts the vertical motor 217 through the controller 207. The vertical motor 217 drives the rotating spindle 216 to rotate through the support shaft and coupling. The rotating spindle 216 synchronously drives the lower horizontal bevel gear 202 and the following turntable 203 to rotate around the central axis.

[0057] As the turntable 203 rotates, the tensioning rod 205, which is hinged to the U-shaped mounting bracket 204, moves circumferentially in sync with the turntable. The upper sidewall of the tensioning rod 205 continuously abuts against the surface of the roller 206 fixed on the extension cylinder 221. Under the radial pushing action of the roller 206, the tensioning rod 205 swings outward around the lower movable pin, causing the T-shaped support rod 213 connected to the upper end to extend outward along the arc opening 212 of the tensioning cylinder 201, so that the anti-slip pad 214 at the end fits tightly against the inner wall of the battery box, completing the internal tensioning and positioning of the box. The spring damping rod 210 is stretched as the tensioning rod 205 swings, providing a reverse pulling force to buffer the tensioning force. After the tensioning is in place, the vertical motor 217 locks through the brake to maintain the tensioned state.

[0058] At the same time, the rotating main shaft 216 drives the lower horizontal bevel gear 202 to rotate, meshing with and driving the rear vertical bevel gear 302 to rotate synchronously. This drives the lower transmission pulley 303 to rotate via the transmission shaft, and through the belt 309, drives the upper transmission pulley 303 to rotate synchronously, causing the upper vertical bevel gear 302 to rotate synchronously. This, in turn, meshes with and drives the upper horizontal bevel gear 310 to rotate, causing the lifting shaft 304 to rotate around its own axis.

[0059] The lifting shaft 304 drives the lower threaded lifting rod 305 to rotate synchronously. Under the influence of the threaded side effect of the fixed stationary threaded sleeve 306, the rotary motion is converted into vertical linear motion, which drives the lower welding gun connecting frame 308 to move up and down, adjusting the welding gun to the welding height suitable for the box. The support beam 307 provides support for the stationary threaded sleeve 306 throughout the process, ensuring that the lifting process is stable and without swaying.

[0060] During the welding operation, the vertical motor 217 remains in a brake-locked state to maintain the tension and fixation of the housing. It works in conjunction with the circumferentially movable welding torch to complete the continuous welding of the circumferential joints of the housing. The spring damping rod 210 provides elastic support for the tensioning rod 205 throughout the entire process, buffering the minor vibrations during the welding process and ensuring the stability of the welding trajectory.

[0061] After the operation is completed, the controller 207 controls the vertical motor 217 to de-energize, release the brake, and reverse its rotation, following the turntable 203 to rotate in the opposite direction. The pushing force of the roller 206 on the tension rod 205 is gradually released, the spring damping rod 210 retracts and resets, pulling the tension rod 205 to swing inward, and the T-shaped support rod 213 retracts along the arc opening 212, releasing the tension and fixation on the box. The operator can then remove the processed battery box from above.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding equipment for a new energy vehicle battery box, comprising a mounting base (1) that provides support, characterized in that: The mounting base (1) is equipped with a tensioning assembly (2), and the mounting base (1) is equipped with a welding assembly (3) on its upper surface. The tensioning assembly (2) includes a tensioning cylinder (201) mounted on the middle of the upper surface of the mounting base (1). A rotating spindle (216) passes through the inside of the tensioning cylinder (201). A lower horizontal bevel gear (202) is fixedly mounted on the rotating spindle (216). The lower horizontal bevel gear (202) is located above the lower surface of the inner wall of the tensioning cylinder (201). A following turntable (203) is fixedly mounted on the rotating spindle (216) above the lower horizontal bevel gear (202). Four U-shaped mounting brackets (204) are evenly installed on the upper surface of the following turntable (203) along the circumferential direction. Each U-shaped mounting bracket (204) is movably connected to a tension rod (205) via a movable pin. The side of each tension rod (205) near the upper end of the tension cylinder (201) abuts against the corresponding roller (206). An extension cylinder (221) is installed on the upper surface of the inner wall of the tension cylinder (201). Four rollers (206) are evenly arranged on the circumferential surface of the extension cylinder (221). The welding assembly (3) includes an L-shaped mounting cover (301) mounted on the upper surface of the mounting base (1). A vertical bevel gear (302) is rotatably mounted on the vertical end inside the L-shaped mounting cover (301). A vertical bevel gear (302) is meshed with the rear side of the lower horizontal bevel gear (202). A transmission pulley (303) is coaxially fixedly mounted on the rear side of each vertical bevel gear (302). An upper horizontal bevel gear (310) is meshed with the front side of the upper end of the upper vertical bevel gear (302). A lifting shaft (304) is fixedly mounted in the middle of the upper horizontal bevel gear (310). A threaded lifting rod (305) is mounted on the lower end of the lifting shaft (304). A stationary threaded sleeve (306) is sleeved on the outside of the threaded lifting rod (305).

2. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: A controller (207) is installed on the front side of the mounting base (1). A drive shaft (208) is passed through the middle of the two vertical bevel gears (302). The front end and rear end of each drive shaft (208) are fixedly connected to the corresponding vertical bevel gear (302) and drive pulley (303) respectively. The two drive pulleys (303) are connected by a belt (309).

3. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: Each tensioning rod (205) has a first set of hinge frames (209) at the middle of the side away from the tensioning cylinder (201). A spring damping rod (210) is obliquely installed on the first set of hinge frames (209). The end of each spring damping rod (210) away from the first set of hinge frames (209) is installed on the second set of hinge frames (211) on the upper surface of the following turntable (203).

4. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: The outer wall of the tensioning cylinder (201) is provided with an arc-shaped opening (212) corresponding to the tensioning rod (205), and a T-shaped support rod (213) is connected to the upper end of the side of each tensioning rod (205) away from the tensioning cylinder (201).

5. The welding equipment for a new energy vehicle battery box according to claim 4, characterized in that: The end of each T-shaped support rod (213) away from the tension rod (205) is inserted into the arc-shaped opening (212) on the outer wall of the tensioning cylinder (201), and an anti-slip pad (214) is fixedly connected to the end of each T-shaped support rod (213) that extends out of the arc-shaped opening (212).

6. The welding equipment for a new energy vehicle battery box according to claim 3, characterized in that: Each of the spring damping rods (210) has a hinge plate (215) installed at its upper and lower ends. Each of the spring damping rods (210) is hinged to the first set of hinge frames (209) and the second set of hinge frames (211) through the hinge plate (215) and the hinge shaft (220).

7. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: The lower horizontal bevel gear (202) is fixedly mounted on the outer wall of the rotating spindle (216). The upper end of the rotating spindle (216) is fixedly connected to the middle of the lower surface of the following turntable (203). The lower end of the rotating spindle (216) is connected to the vertical motor (217) through a coupling and a support shaft. The vertical motor (217) is equipped with a power-off brake structure.

8. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: Each roller (206) is equipped with a limiting frame (218) on its outer side. The external structure of the limiting frame (218) is arc-shaped. Each roller (206) has a groove (219) on its upper surface. Each limiting frame (218) is installed on the surface of the extension cylinder (221) by fixing bolts.

9. The welding equipment for a new energy vehicle battery box according to claim 1, characterized in that: The rear end of the stationary threaded sleeve (306) is connected to a support beam (307), and the end of the support beam (307) away from the stationary threaded sleeve (306) is fixedly connected to the front side of the L-shaped mounting cover (301).

10. The welding equipment for a new energy vehicle battery box according to claim 9, characterized in that: The lower end of the threaded lifting rod (305) is equipped with a welding gun connecting frame (308), and the welding gun connecting frame (308) has multiple threaded holes (311) on the outside for connecting a suitable welding gun.

Images