A kind of all-aluminum battery box welding device

Abstract

The present invention relates to the technical field of welding equipment, and specifically discloses an all-aluminum battery box welding device, including a handheld bracket, a welding gun head and a support and guide assembly, the support and guide assembly including a connecting seat, a first guide structure, a second guide structure and a driving structure, the driving structure drives the connecting seat to slide and cooperate with the welding gun head along the axial direction of the welding gun head, the first guide structure includes a connecting frame, two guide links and two guide wheels, the connecting frame slides with the connecting seat, the two guide wheels are respectively fixed to the connecting frame through two guide links, and the two guide wheels are respectively in rolling contact with the panels on both sides of the weld; the second guide structure includes a guide member and a roller, the guide member is parallel to the welding gun head, one end of the guide member is fixed to the connecting seat, and the other end of the guide member is connected to the roller, and the roller rolls in accordance with the weld. The all-aluminum battery box welding device provided by the present invention improves the welding quality and welding efficiency of the battery box.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to an all-aluminum battery box welding device. Background Art

[0002] In the production process of all-aluminum battery boxes, the welding operation of the battery box is a key step. The welding quality directly affects the strength, sealing and safety of the battery box. It is especially important to ensure the uniformity of the weld during the welding process. When welding some small-batch or customized battery boxes, the debugging and programming costs of automated welding equipment are relatively high. Therefore, when conducting small-batch or customized production, in order to quickly adapt to battery boxes of different sizes and shapes and avoid complicated equipment debugging operations, manual welding is usually used to weld the battery boxes. When manually holding the welding equipment to weld the battery box, the worker's hand position needs to be maintained at a fixed angle. If the hand shakes or deflects during the welding process, it will affect the consistency of the weld, which will lead to unsatisfactory welding quality of the battery box. Therefore, manual welding has problems with welding strength and difficulty.

[0003] The patent document with authorization announcement number CN113560715B discloses a handheld laser welding device, including a welding gun, a welding head fixed to the rear end of the welding gun, a handle fixed on the welding gun, a control switch fixed through the bottom of the handle, a fixed block and a guide plate fixed to one side of the welding gun by bolts, a connecting frame hinged to the other side of the fixed block, and a directional plate fixed to the other side of the connecting frame by bolts, the cross-section of the directional plate is set to J-shaped, a guide groove is provided at the front end of the guide plate, the cross-section of the guide groove is set to arc-shaped, a guide block is slidably connected in the guide groove, a guide spring is fixed between the guide block and the inner wall of the guide groove by bolts, and the same connecting rod is fixed between the guide block and the connecting frame by bolts. The welding equipment provided by the patent document utilizes the contact between the bottom of the directional plate and the work table, that is, the contact force between the welding head and the weld part and the contact force between the directional plate and the work table can provide a relatively stable support for the hand, thereby reducing the shaking of the hand during welding and avoiding welding angle deviation.

[0004] The welding equipment provided by the above patent document needs to maintain the stability of the hand when holding the welding equipment by relying on the contact force between the welding head and the welding part during use. During the welding operation, in order to ensure the quality and efficiency of welding, the welding head and the weld need to maintain an appropriate distance. The direct contact of the welding head with the weld will cause the welding machine current to suddenly increase, generating a large amount of spatter, which will not only affect the appearance and quality of the weld, but may also cause defects inside the weld, such as pores and slag inclusions. In addition, direct contact of the welding head with the weld will also cause insufficient weld penetration or poor fusion, especially when welding materials with good thermal conductivity such as aluminum alloys. Short circuits will quickly take away heat and affect the stability of the welding pool. Frequent short circuits may cause the welding equipment to be overloaded or damaged, increasing the maintenance cost of the equipment. The welding equipment in the related art can limit the welding head on the moving path, but cannot limit the welding head in the direction toward or away from the welding area. Summary of the Invention

[0005] The present invention provides an all-aluminum battery box welding device, which aims to solve the problem in the related art that when using handheld welding equipment to weld the battery box, the worker's hands are easily shaken during the welding process due to the influence of the worker's operating experience and proficiency, thereby affecting the uniformity and consistency of the weld.

[0006] The all-aluminum battery box welding device of the present invention comprises a handheld bracket and a welding gun head arranged on the handheld bracket, and the handheld bracket is further provided with a support guide assembly, the support guide assembly comprises a connecting seat, a first guide structure, a second guide structure and a driving structure, and the driving structure drives the connecting seat to slide and cooperate with the welding gun head along the axial direction of the welding gun head; the first guide structure comprises a connecting frame fixedly arranged on the connecting seat, two guide connecting rods fixedly arranged on the connecting frame, and two guide wheels respectively provided on the two guide connecting rods, and the two guide wheels are respectively in rolling contact with the panels on both sides of the gap to be welded in the battery box; the second guide structure comprises a guide member and a roller, the guide member is parallel to the welding gun head, one end of the guide member is fixed to the connecting seat, and the other end is rotatably connected to the roller, and the roller rolls in accordance with the weld seam of the welded area;

[0007] The welding device also includes a cleaning component, which includes a driving source, a cam, a cleaning piece and an elastic reset piece. The cleaning piece is located between the welding gun head and the guide piece. The cleaning piece and the guide piece are parallel to each other. The cleaning piece slides with the connecting seat along its axial direction. The driving source is relatively fixed to the handheld bracket. The driving source drives the cam to rotate. When the cam rotates, it pushes the cleaning piece to slide in a direction away from the welded weld. The elastic reset piece is used to reset the cleaning piece.

[0008] The beneficial effects are: reducing the difficulty of manual welding and improving the welding quality and welding efficiency of the battery box. The support and guide assembly is used to accurately guide the welding path of the welding gun head. The two guide wheels of the first guide structure slide and abut against the panels on both sides of the weld on both sides of the welding gun head, and the rollers of the second guide structure abut against the weld and move. The rollers and the two guide wheels stably support the movement of the welding gun head, which reduces manual intervention in the welding process, reduces the difficulty of manual welding and the intensity of welding work, and reduces rework caused by welding defects, fully ensuring the work efficiency of the welding operation; the support and guide assembly fully ensures the stability of the movement of the welding gun head during the welding process, thereby improving the uniformity and consistency of the weld and effectively ensuring the quality of the weld. The drive structure is used to adjust the position of the connecting seat and the welding gun head, so that the distance between the welding gun head and the area to be welded on the battery box can be flexibly adjusted according to different weld depth requirements, thereby improving the adaptability of the welding device and the accuracy of the positioning of the welding gun head;

[0009] Automatically clean the welding slag at the weld seam to reduce the interference of welding slag on the sliding of the guide part. When the driving source is working, it drives the cam to rotate. The cam rotates and pushes the cleaning part to slide along its axial direction at intervals. During the reciprocating sliding of the cleaning part, the welded weld is knocked to promote the separation of welding slag from the weld seam. The cleaning component automatically completes the cleaning operation of welding slag, avoiding the inefficiency and inconsistency of manual cleaning, improving the cleaning efficiency and quality of welding slag, and reducing the influence of welding slag on the guiding effect of the guide part, ensuring the accuracy and stability of the movement of the welding device. In addition, timely removal of welding slag during the welding process can also help reduce welding defects such as pores, inclusions, etc., thereby improving the strength and sealing of the weld, and further ensuring the welding quality of the weld.

[0010] Preferably, the driving structure includes an adjusting rod, the adjusting rod is provided with an external thread, the adjusting rod is rotationally engaged with the welding gun head, and the adjusting rod is threadedly engaged with the connecting seat.

[0011] The beneficial effects are: improving the convenience of adjusting the relative position of the connecting seat and the welding gun head. By turning the adjusting rod, the connecting seat can be driven to slide relative to the welding gun head and the relative position of the connecting seat and the welding gun head can be changed, and finally the distance between the welding gun head and the weld can be quickly adjusted. The operation is simple and efficient.

[0012] Preferably, the welding gun head is provided with a scale.

[0013] The beneficial effects are: improving the accuracy and efficiency of adjusting the relative position of the connecting seat and the welding gun head, and by setting a scale on the welding gun head, it is convenient for the operator to intuitively and quickly judge whether the relative position of the connecting seat and the welding gun head is adjusted in place.

[0014] Preferably, an adjusting portion for manual rotation is fixed to the end of the adjusting rod.

[0015] The beneficial effect is that it is convenient for the operator to quickly manually rotate the adjustment lever.

[0016] Preferably, the driving structure further comprises a motor, the motor is fixed relative to the welding gun head, and the driving end of the motor is fixed to one end of the adjusting rod.

[0017] The beneficial effect is that the adjustment rod is driven to rotate by the motor, which reduces the workload of the operator.

[0018] Preferably, a mounting plate is fixed on the handheld bracket, the mounting plate is located on the lower side of the connecting seat and is parallel to the connecting seat, the driving source is fixed to the mounting plate, the cleaning piece is slidably fitted with the mounting plate, and the elastic reset piece abuts against the lower end surface of the mounting plate.

[0019] Preferably, the driving end of the driving source is also fixed with a bevel gear 1, the mounting plate is rotatably connected with a rotating shaft, the top of the rotating shaft is fixed with a bevel gear 2 that meshes with the bevel gear 1, a gear is fixed on the rotating shaft, and the outer peripheral side of the cleaning piece is evenly provided with a plurality of teeth, and the gears are longitudinally slidably matched and meshed with the teeth.

[0020] The beneficial effects are: further improving the cleaning strength of the cleaning piece, the driving source simultaneously drives the bevel gear one to rotate, and the bevel gear one drives the cleaning piece to rotate through the bevel gear two, the rotating shaft and the gear, so that the cleaning piece slides back and forth while rotating around its axis, and the cleaning piece simultaneously produces a knocking and crushing action on the welding slag, thereby increasing the cleaning strength of the cleaning piece, fully promoting the separation of the welding slag and the weld, and improving the cleaning strength and cleaning effect of the cleaning piece on the welding slag.

[0021] Preferably, the guide member is cylindrical, an air inlet is provided on one side of the lower end of the guide member, an air outlet is provided at the lower end of the guide member, a piston rod is slidingly provided in the guide member, the upper end of the piston rod extends to the upper side of the cleaning member and forms a connecting portion, the cleaning member is movably abutted against the piston rod, a connecting rod is fixed on the connecting seat, the connecting portion is slidingly matched with the connecting rod, an elastic member is sleeved on the connecting rod, and the elastic member is elastically abutted against the connecting portion.

[0022] The beneficial effects are: further promoting the separation of welding slag and weld, the piston rod and the cleaning part are in movable contact, and the cleaning part drives the piston rod to slide back and forth in the guide part when it slides back and forth and strikes the welding slag, and continuously draws the air outside the guide part into the guide part from the air inlet, and discharges the gas from the air outlet. The air discharged from the air outlet blows the fallen welding slag away from the weld, increasing the welding slag cleaning effect while avoiding the welding slag blocking the weld, and also avoiding the roller rolling on the welding slag when the guide part moves along the weld, affecting the guiding accuracy of the guide part.

[0023] Preferably, the roller avoids the air outlet.

[0024] The beneficial effects of the present invention are:

[0025] (1) Reduce the difficulty of manual welding and improve the welding quality and efficiency of the battery box. The support guide assembly is used to accurately guide the welding path of the welding gun head. The two guide wheels of the first guide structure slide and abut against the panels on both sides of the weld on both sides of the welding gun head. The roller of the second guide structure abuts against the weld and moves. The roller and the two guide wheels provide stable support for the movement of the welding gun head, which reduces manual intervention in the welding process, reduces the difficulty of manual welding and the intensity of welding work, and reduces rework caused by welding defects, fully ensuring the work efficiency of the welding operation; the support guide assembly fully ensures the stability of the movement of the welding gun head during the welding process, thereby improving the uniformity and consistency of the weld and effectively ensuring the quality of the weld. The drive structure is used to adjust the position of the connecting seat and the welding gun head, so that the distance between the welding gun head and the area to be welded on the battery box can be flexibly adjusted according to different weld depth requirements, thereby improving the adaptability of the welding device and the accuracy of the positioning of the welding gun head.

[0026] (2) Automatically clean the welding slag at the weld seam and reduce the interference of welding slag on the sliding of the guide member. When the driving source is working, it drives the cam to rotate. When the cam rotates, it pushes the cleaning member to slide along its axial direction. During the reciprocating sliding process, the cleaning member knocks the welded weld to promote the separation of welding slag from the weld seam. The cleaning component automatically completes the cleaning operation of welding slag, avoiding the inefficiency and inconsistency of manual cleaning, improving the cleaning efficiency and quality of welding slag, and reducing the influence of welding slag on the guiding effect of the guide member, ensuring the accuracy and stability of the movement of the welding device. In addition, timely removal of welding slag during the welding process also helps to reduce welding defects such as pores and inclusions, thereby improving the strength and sealing of the weld seam and further ensuring the welding quality of the weld seam; the driving source also drives the bevel gear 1 to rotate. The bevel gear 1 drives the cleaning member to rotate through the bevel gear 2, the rotating shaft and the gear, so that the cleaning member slides back and forth while rotating around its axial direction. The cleaning member simultaneously knocks and crushes the welding slag, increasing the cleaning strength of the cleaning member, fully promoting the separation of welding slag from the weld, and improving the cleaning strength and cleaning effect of the cleaning member on the welding slag.

[0027] (3) Further promote the separation of welding slag and weld seam. The piston rod and the cleaning part are in movable contact. When the cleaning part slides back and forth and strikes the welding slag, it drives the piston rod to slide back and forth in the guide part, and continuously draws air from the outside of the guide part into the guide part from the air inlet, and discharges the gas from the air outlet. The air discharged from the air outlet blows the detached welding slag away from the weld seam, increasing the welding slag cleaning effect while avoiding the welding slag blocking the weld seam, and also avoiding the roller rolling on the welding slag when the guide part moves along the weld seam, which affects the guiding accuracy of the guide part. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a state diagram of the welding device in the present invention when welding a battery box.

[0029] Figure 2 It is a structural schematic diagram of the welding device welding the battery box from another perspective.

[0030] Figure 3 yes Figure 2 Enlarged view of part A.

[0031] Figure 4 It is a schematic diagram of the overall structure of the welding device in the present invention.

[0032] Figure 5 yes Figure 4 main view.

[0033] Figure 6 yes Figure 4 Right view of .

[0034] Figure 7 It is a schematic diagram of the connection structure of the connecting seat, the guide member and the piston rod in the present invention.

[0035] Reference numerals:

[0036] 1. Battery box; 11. Fixing bracket; 2. Hand-held bracket; 21. Mounting plate; 211. Fixing plate; 22. Handle; 23. Welding gun head; 24. Connecting bracket; 25. Guide wheel; 3. Connecting seat; 31. Guide member; 311. Roller; 312. Air inlet; 313. Air outlet; 32. Adjusting rod; 33. Piston rod; 331. Connecting part; 332. Piston head; 34. Connecting rod; 35. Elastic member; 4. Cleaning member; 41. Abutment part; 42. Tooth part; 43. Cam; 44. Bevel gear 1; 45. Rotating shaft; 451. Gear; 452. Bevel gear 2; 453. Drive source; 46. Elastic reset member. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 3As shown, the all-aluminum battery case welding device of the present invention includes a handheld bracket 2, a welding gun head 23, a support and guide assembly, and a cleaning assembly mounted on the handheld bracket 2. The welding gun head 23 is fixed to the handheld bracket 2 and can be detachably connected to the handheld bracket 2 to facilitate maintenance and replacement of the welding gun head 23. The handheld bracket 2 is provided with a handle 22 for a worker to operate the welding gun head 23. The support and guide assembly is used to support and guide the movement of the welding gun head 23, accurately guiding the welding path of the welding gun head 23. The cleaning assembly is used to clean the welding slag at the weld seam.

[0039] To further ensure the welding quality, the battery box 1 can be fixed by a fixing frame 11. In order to facilitate the welding operation of the staff and observe the weld during welding, the battery box 1 can also be kept at a certain tilt angle. The fixing frame 11 can be composed of a frame body and fasteners. There are at least two fasteners, and the fasteners are threaded with the frame body. After the relative angle between the battery box 1 and the fixing frame 11 is adjusted, the fasteners are tightened so that the fasteners are tightly attached to the side wall of the battery box 1, and the battery box 1 and the fixing frame 11 can be fixed.

[0040] like Figures 3 to 6 As shown, the support and guide assembly includes a connecting base 3, a first guide structure, a second guide structure, and a drive structure. Here, the connecting base 3 is a long, strip-shaped plate that slides onto the welding gun head 23 along its axial direction. The drive structure drives the connecting base 3 to slide along the axial direction of the welding gun head 23.

[0041] The first guide structure is located on both sides of the traveling direction of the welding gun head 23. The first guide structure includes a connecting frame 24, two guide connecting rods and two guide wheels 25. The connecting frame 24 is fixed to the connecting seat 3, and the connecting frame 24 slides synchronously with the connecting seat 3. The two guide wheels 25 are respectively fixed to the connecting frame 24 through two guide connecting rods. The two guide wheels 25 are respectively in rolling contact with the panels on both sides of the weld of the battery box 1. In order to improve the stability of the guide wheels 25 sliding against the panels on both sides of the battery box 1, the two guide wheels 25 can be conical wheels.

[0042] The second guide structure is located on the rear side of the moving direction of the welding gun head 23, and includes a guide member 31 and a roller 311. The guide member 31 is parallel to the welding gun head 23. One end of the guide member 31 is fixed to the connecting seat 3, and the other end of the guide member 31 is rotatably connected to the roller 311. The roller 311 is used to slide along the weld on the battery box 1.

[0043] The drive structure includes an adjustment rod 32 having an external thread. The adjustment rod 32 is rotatably engaged with the welding gun head 23. The connecting base 3 is threadedly connected to the adjustment rod 32. When the adjustment rod 32 is rotated, the connecting base 3 can be driven to slide relative to the welding gun head 23, thereby changing the relative position of the connecting base 3 and the welding gun head 23. To facilitate manual rotation of the adjustment rod 32 by a staff member, an adjustment portion can be fixed to the end of the adjustment rod 32. The staff member rotates the adjustment portion to rotate the adjustment rod 32. In other embodiments, the drive structure may further include a motor, which is fixed to the welding gun head 23 and has a drive end fixed to the adjustment rod 32. The motor is used to directly drive the adjustment rod 32 to rotate.

[0044] The support and guide assembly cooperates with the two guide wheels 25 and the roller 311 to stably support and guide the moving path of the welding gun head 23, so that the welding gun head 23 moves at a fixed distance from the weld, reducing the dependence of welding operations on manual labor, reducing welding strength and welding difficulty, and ensuring the uniformity and consistency of the weld. In addition, the position of the connecting seat 3 can be adjusted through the driving structure, and the distance between the welding gun head 23 and the weld can be flexibly adjusted according to different welding requirements.

[0045] In order to facilitate the staff to intuitively and quickly judge whether the relative position of the connecting seat 3 and the welding gun head 23 is adjusted in place, a scale can also be set on the welding gun head 23. The setting of the scale can also improve the adjustment accuracy of the connecting seat 3.

[0046] Before welding, according to the preset welding depth, the guide member 31 can be adjusted to slide along its axial direction by rotating the adjustment rod 32 to adapt to the guiding requirements of different welding depths. When welding the battery box 1, first start the welding gun head 23 to weld a section of weld at the end of the battery box 1 to be welded, keeping the length of the weld section no less than the distance between the welding gun head 23 and the guide member 31, and ensure that the depth and flatness of the weld section meet the requirements. Then, the guide member 31 is placed against the welded weld, so that the welding gun head 23 is opposite to the end of the weld, and the two guide wheels 25 are respectively attached to and rolled in contact with the panels on both sides of the weld of the battery box 1. Then, the welding gun head 23 is started and the handheld welding device is moved along the weld as a whole, so that the welding gun head 23 can be accurately and stably moved along the predetermined trajectory, reducing the dependence of the welding operation on manual proficiency and operating experience, reducing the welding difficulty and welding strength of the manual welding of the battery box 1, and improving the welding efficiency and welding quality of the battery box 1.

[0047] During the welding process of the battery case 1, welding slag may be generated at the weld due to the influence of welding materials and welding process. The generation of welding slag will affect the smoothness and quality of the weld. When the guide member 31 moves along the completed weld, the presence of welding slag will also affect the smooth movement of the guide member 31, and thus affect the uniformity of the subsequent weld. To reduce the impact of welding slag on the uniformity of the weld, it is necessary to clean the welding slag generated at the weld in a timely manner during the welding process. The cleaning component is used to automatically remove the welding slag from the weld.

[0048] The cleaning assembly includes a drive source 453, a cam 43, a cleaning member 4, and an elastic reset member 46. The drive source 453 can be fixed to the handheld bracket 2 by a bracket. In order to improve the stability of the drive source 453 installation and improve the overall structural strength of the welding device, the cleaning assembly also includes a mounting plate 21. The mounting plate 21 is a long strip of plate. The mounting plate 21 is parallel to the connecting seat 3, with the side facing the weld as the lower side. The mounting plate 21 is located on the lower side of the connecting seat 3. A fixing plate 211 is fixed on the mounting plate 21, and the drive source 453 is fixedly mounted on the fixing plate 211. The connecting frame 24 is slidably matched with the mounting plate 21, and the welding gun head 23 is fixed to the mounting plate 21. The drive source 453 can be a motor. The driving end of the drive source 453 is connected to the cam 43, and the drive source 453 drives the cam 43 to rotate.

[0049] The cleaning member 4 is located between the welding gun head 23 and the guide member 31. The axial direction of the cleaning member 4 is parallel to the axial directions of the welding gun head 23 and the guide member 31. The cleaning member 4 slides with the mounting plate 21 and the connecting seat 3 along its axial direction. The lower end of the cleaning member 4 is also sleeved with an elastic reset member 46, wherein the elastic reset member 46 can be a spring, and the spring elastically abuts against the mounting plate 21. The cam 43 abuts against the upper end of the cleaning member 4. Specifically, the upper end of the cleaning member 4 forms an abutment portion 41 perpendicular to the cleaning member 4. When the driving source 453 drives the cam 43 to rotate, the cam 43 pushes the abutment 41 upward at intervals, and the cleaning member 4 moves upward synchronously with the abutment 41. When the cleaning member 4 slides upward relative to the mounting plate 21, it squeezes the elastic reset member 46 and causes the elastic reset member 46 to accumulate force. After the cam 43 is separated from the abutment 41, the cleaning member 4 moves downward under the elastic force of the elastic reset member 46. During the process of reciprocating sliding along its axial direction, the cleaning member 4 knocks the welding slag at the weld to promote the falling off of the welding slag. The battery box 1 tilted and fixed relative to the fixing frame 11 also facilitates the falling welding slag to slide along the inclined surface of the battery box 1, thereby avoiding welding slag remaining at the weld.

[0050] In order to further improve the cleaning strength and cleaning effect of the cleaning component on welding slag, a bevel gear 44 is also fixed to the driving end of the driving source 453, and a rotating shaft 45 is rotatably connected to the mounting plate 21. A bevel gear 2 452 and a gear 451 are fixed to the rotating shaft 45. The bevel gear 2 452 is meshed with the bevel gear 1 44. A plurality of teeth 42 are evenly arranged on the outer peripheral side of the cleaning member 4. The gear 451 and the tooth portion 42 are longitudinally slidably matched and meshed. The length of the tooth portion 42 is not less than the sliding range of the cleaning member 4 to ensure that the tooth portion 42 of the cleaning member 4 always remains in meshing with the gear 451 during the sliding process. When the driving source 453 is working, it drives the bevel gear 1 44 to rotate, and the bevel gear 1 44 drives the bevel gear 2 452 meshing with it to rotate. The rotating shaft 45 fixed to the bevel gear 2 452 rotates synchronously with the bevel gear 2 452, and the gear 451 fixed to the rotating shaft 45 rotates with the rotating shaft 45. When the gear 451 rotates, it drives the cleaning member 4 to rotate under the meshing action with the tooth portion 42. In the process of cleaning the welding slag, the cleaning member 4 slides along its axial direction and can also rotate around its own axis. The cleaning member 4 rotates and strikes the welding slag. The cleaning member 4 crushes the welding slag while striking the welding slag, thereby improving the cleaning strength of the cleaning member 4 for cleaning the welding slag, promoting some welding slag with greater adhesion strength to fully separate from the weld, and ensuring the quality of the weld.

[0051] like Figures 4 to 7 As shown, in the actual production process, since the welding slag is relatively light, a small amount of detached welding slag may still adhere to the weld, interfering with the smooth movement of the guide member 31. Due to the influence of the operating space, it is sometimes inconvenient to use external blowing equipment or other cleaning equipment to clean the attached welding slag. In order to avoid the detached welding slag interfering with the guiding operation of the guide member 31, it is also necessary to blow the detached welding slag away from the weld in time. To facilitate the blowing away and cleaning of welding slag, the guide member 31 is set to be cylindrical, and an air inlet 312 is provided on one side of the lower end of the guide member 31, and an air outlet 313 is provided at the lower end of the guide member 31. The air inlet 312 only supports gas to enter the guide member 31, and the air outlet 313 only supports gas to flow out of the guide member 31, that is, the air inlet 312 and the air outlet 313 are both one-way air flow channels. In order to limit the one-way flow of air in the air inlet 312 and the air outlet 313, a one-way valve can be set at the air inlet 312 and the air outlet 313. The types of one-way valves include but are not limited to no-load check valves, pressure-controlled one-way valves with spring reset, pilot-operated one-way valves, etc.

[0052] To prevent the roller 311 from blocking the air outlet 313 and affecting the cleaning of welding slag, the roller 311 avoids the air outlet direction of the air outlet 313, with the side facing the forward direction of the welding device as the front side, and the roller 311 can be located at the rear side of the air outlet 313.

[0053] A piston rod 33 is provided slidingly inside the guide member 31, and a piston head 332 is fixed to the lower end of the piston rod 33. The piston head 332 can be made of rubber. The piston head 332 slides against the inner wall of the guide member 31. When the piston rod 33 moves upward in the guide member 31, the gas outside the guide member 31 enters the interior of the guide member 31 from the air inlet 312. When the piston rod 33 moves downward in the guide member 31, the gas squeezed against the lower side of the piston head 332 is discharged from the air outlet 313. The airflow discharged from the air outlet 313 blows the fallen welding slag away from the position of the weld, reducing the influence of the welding slag on the movement of the roller 311 and ensuring the stability of the roller 311 sliding against the weld.

[0054] The upper end of the piston rod 33 extends to the upper side of the cleaning piece 4 and forms a connecting portion 331. The connecting portion 331 is perpendicular to the piston rod 33, and the connecting portion 331 is movably abutted against the abutment portion 41. When the cam 43 drives the cleaning piece 4 to slide, the abutment portion 41 on the cleaning piece 4 contacts the connecting portion 331, and the abutment portion 41 pushes the connecting portion 331 to slide along with the abutment portion 41, and the piston rod 33 slides synchronously with the connecting portion 331. The cam 331 is engaged with the cam 332 and the engagement member 333 is engaged with the engagement member 334. The cam 332 is engaged with the engagement member 333 in a manner similar to that of the cam 332. The cam 332 is engaged with the engagement member 333 in a manner similar to that of the cam 332.

[0055] The specific working process of the welding device of the present invention is as follows:

[0056] After the battery box 1 is fixed by the fixing frame 11, the relative position of the connecting seat 3 and the welding gun head 23 is adjusted by rotating the adjustment rod 32 according to the preset requirements of the weld seam. The connecting frame 24 and the guide member 31 slide synchronously with the connecting seat 3 so that when the roller 311 and the two guide wheels 25 support the welding gun head 23, the distance between the welding gun head 23 and the weld seam meets the preset welding depth requirements. After that, the operator holds the handle 22 of the welding device and welds a section of the weld seam at the end of the battery box 1 to be welded by the welding gun head 23, keeping the length of the weld seam no less than the distance between the welding gun head 23 and the guide member 31, and ensuring that the depth and flatness of the weld seam meet the requirements. The direction of the welding device is adjusted again so that the roller 311 on the guide member 31 abuts the welded weld seam, and the two guide wheels 25 respectively keep in contact with the two panels on both sides of the weld seam of the battery box 1. Then, the operator holds the handle 22 of the welding device and pushes the welding device to move slowly and uniformly along the weld seam.

[0057] During the welding process, the driving source 453 is started, and the driving source 453 drives the cam 43 and the bevel gear 44 to rotate, and drives the cleaning part 4 to rotate and knock the welding slag on the weld. A piston rod 33 is movably provided in the guide part 31, and the cleaning part 4 is movably abutted against the piston rod 33. When the cleaning part 4 slides, it drives the piston rod 33 to slide back and forth relative to the guide part 31. When the piston rod 33 slides relative to the guide part 31, air is continuously blown to the weld through the air outlet 313 to promote the separation of the fallen welding slag from the weld, avoid the welding slag affecting the fit between the guide part 31 and the weld, ensure the sliding stability of the guide part 31, and then ensure the uniformity and consistency of the weld.

[0058] The all-aluminum battery box welding device provided by the present invention supports and guides the movement of the welding gun head through a support and guide assembly, thereby ensuring the stability of the welding gun head and the consistency of the moving path during the welding process, thereby ensuring the uniformity of the weld, and improving the welding quality and welding efficiency of the battery box. At the same time, the cleaning assembly is used to clean the generated welding slag in time, ensuring the welding quality of the weld while further avoiding the influence of welding slag on the guidance of the guide part.

[0059] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An all-aluminum battery box welding device, comprising a handheld bracket and a welding gun head provided on the handheld bracket, characterized in that: The handheld bracket is also provided with a support and guide assembly, the support and guide assembly includes a connecting seat, a first guide structure, a second guide structure and a driving structure, the driving structure drives the connecting seat to slide with the welding gun head along the axial direction of the welding gun head; the first guide structure includes a connecting frame fixedly arranged on the connecting seat, two guide links fixedly arranged on the connecting frame and two guide wheels respectively provided on the two guide links, the two guide wheels respectively roll in contact with the panels on both sides of the gap to be welded in the battery box; the second guide structure includes a guide member and a roller, the guide member is parallel to the welding gun head, one end of the guide member is fixed to the connecting seat, and the other end is rotatably connected to the roller, and the roller rolls in accordance with the weld seam of the welded area; the welding device also includes a cleaning assembly, a cam, a cleaning member and an elastic reset member, the cleaning member is located between the welding gun head and the guide member, the cleaning member and the guide member are parallel to each other, the cleaning member slides with the connecting seat along its axial direction, the driving source is relatively fixed to the handheld bracket, the driving source drives the cam to rotate, and when the cam rotates, it pushes the cleaning member to slide in a direction away from the welded weld, and the elastic reset member is used to reset the cleaning member; The guide member is cylindrical, and an air inlet is provided on one side of the lower end of the guide member, and an air outlet is provided at the lower end of the guide member. A piston rod is slidingly provided in the guide member, and the upper end of the piston rod extends to the upper side of the cleaning member and forms a connecting portion. An abutment portion perpendicular to the cleaning member is formed at the upper end of the cleaning member, and the cam pushes the abutment portion upward at intervals, and the connecting portion and the abutment portion are movably abutted, and the cleaning member and the piston rod are movably abutted, and a connecting rod is fixed on the connecting seat, and the connecting portion and the connecting rod are slidably matched, and an elastic member is sleeved on the connecting rod, and the elastic member and the connecting portion are elastically abutted.

2. The all-aluminum battery box welding device according to claim 1, characterized in that: The driving structure includes an adjusting rod, which is provided with an external thread. The adjusting rod is rotationally matched with the welding gun head, and the adjusting rod is threadedly matched with the connecting seat.

3. The all-aluminum battery box welding device according to claim 2, characterized in that: The welding gun head is provided with a scale.

4. The all-aluminum battery box welding device according to claim 2, characterized in that: An adjusting portion for manual rotation is fixed on the end of the adjusting rod.

5. The all-aluminum battery box welding device according to claim 2, characterized in that: The driving structure further comprises a motor, which is fixed relative to the welding gun head, and a driving end of the motor is fixed to one end of the adjusting rod.

6. The all-aluminum battery box welding device according to claim 1, characterized in that: A mounting plate is fixed on the handheld bracket, the mounting plate is located on the lower side of the connecting seat and is parallel to the connecting seat, the driving source is fixed to the mounting plate, the cleaning piece is slidably fitted with the mounting plate, and the elastic reset piece abuts against the lower end surface of the mounting plate.

7. The all-aluminum battery box welding device according to claim 6, characterized in that: The driving end of the driving source is also fixed with a bevel gear 1, the mounting plate is rotatably connected with a rotating shaft, the top of the rotating shaft is fixed with a bevel gear 2 that meshes with the bevel gear 1, a gear is fixed on the rotating shaft, and the outer peripheral side of the cleaning piece is evenly provided with a plurality of teeth, and the gears are longitudinally slidably matched and meshed with the teeth.

8. The all-aluminum battery box welding device according to claim 1, characterized in that: The roller avoids the air outlet.

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