Automatic welding equipment for new energy automobile

Abstract

The invention relates to the technical field of new energy automobile battery shell welding, in particular to new energy automobile automatic welding equipment which comprises a machine base, a guide frame is fixedly connected to the machine base, two sets of perpendicular electric sliding rails are arranged on the guide frame, and an automatic welding gun is slidably connected to one set of electric sliding rails. A material carrying frame and a supporting plate are slidably connected to the guiding frame, the material carrying frame is used for carrying and conveying the shell, and a collecting frame is rotatably connected to the supporting plate and used for entering the shell to restrain distribution of welding slag and collecting the welding slag. The collecting frame in the equipment can actively intrude into the shell in the operation process and restrain welding slag distribution, the welding slag splashed into the shell is gathered in a fixed range, subsequent cleaning and detection of the welded shell are facilitated, and the production efficiency and quality of the shell are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle battery shell welding, and in particular to automatic welding equipment for new energy vehicles. Background Art

[0002] The battery casing of new energy vehicles is the core protective structure of the new energy vehicle power battery system. Its main function is to accommodate battery cells, electrolytes and thermal management components, while resisting external mechanical shocks and environmental corrosion. The casing made of aluminum alloy is widely used due to its advantages such as light weight, high thermal conductivity and corrosion resistance.

[0003] During the welding process of the side seams of the battery shell, some molten metal (splashing sparks and welding slag) will splash into the inside of the shell through the side seams and solidify and adhere to the inner wall of the shell. Due to the uneven and non-uniform splashing trajectory, full-area cleaning is required after welding is completed, which will not only reduce the cleaning efficiency and increase the difficulty of cleaning, resulting in incomplete cleaning, but also reduce the efficiency of subsequent cleanliness detection, increase the difficulty of detection, and cause misjudgment or missed detection. The welding slag remaining in the battery shell may cause electrical short circuits, chemical contamination, structural damage, and sealing failure. The hazards are hidden and cumulative. Therefore, there is an urgent need for a welding device that can actively invade the interior of the shell and has the ability to constrain the distribution of welding slag to achieve the aggregation and collection of splashing welding slag, thereby reducing the difficulty of subsequent cleaning and detection. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the trajectory of molten metal splashes is uneven and non-uniform, which increases the difficulty of subsequent cleaning and detection, the present invention provides an automatic welding equipment for new energy vehicles, which can actively invade the interior of the shell and has the ability to constrain the distribution of welding slag, thereby realizing the aggregation and collection of splashing welding slag, thereby reducing the difficulty of subsequent cleaning and detection.

[0005] The technical solution is: an automatic welding equipment for new energy vehicles, including a machine base, a guide frame fixedly connected to the machine base, two sets of perpendicular electric slide rails arranged on the guide frame, one set of electric slide rails is slidably connected to an automatic welding gun, a loading frame and a support plate are slidably connected to the guide frame, the loading frame is used to carry and transport the shell, a collecting frame is rotatably connected to the support plate, the collecting frame is used to enter the shell to constrain the distribution of welding slag and collect the welding slag, a No. 1 torsion spring is connected between the collecting frame and the support plate, a positioning mechanism is connected to the loading frame, and during the process of the loading frame transporting the shell, the positioning mechanism can position the shell on the loading frame so that the collecting frame can be accurately inserted into the shell.

[0006] Furthermore, the positioning mechanism includes a positioning plate, which is slidably connected to the loading frame, and a positioning rod is rotatably connected to the positioning plate, and a pull rod is rotatably connected to the positioning rod, and the pull rod is slidably connected to a slideway on the loading frame. When the positioning plate moves, the positioning rod is driven to rotate through the pull rod, and a No. 2 torsion spring is connected between the positioning rod and the positioning plate.

[0007] Furthermore, the positioning mechanism also includes a sliding plate, which is slidably connected to the loading frame, and the sliding plate is fixed to the positioning plate on the same side. A No. 1 spring is sleeved on the guide rod of the sliding plate, an inner convex plate is fixed on the sliding plate, and an outer convex plate is fixed on the guide frame. The outer convex plate and the inner convex plate are squeezed together to drive the positioning plate close to the outer shell.

[0008] Furthermore, it also includes a cleaning mechanism to prevent welding slag from accumulating in the collection frame. The cleaning mechanism includes a cleaning guide rod, which is fixed to the machine base. A sliding seat is slidably connected to the cleaning guide rod, and a steering sleeve is rotatably connected to the sliding seat. A cleaning brush for cleaning the inner surface of the collection frame is fixed to the steering sleeve.

[0009] Furthermore, it also includes a support plate and a steering block, the support plate is fixedly connected to the guide frame, the steering block is fixedly connected to the collection frame, and the support plate is used to resist the steering block to make the collection frame swing downward.

[0010] Furthermore, it also includes a sweeping mechanism that drives the cleaning brush to clean the collection frame. The sweeping mechanism includes a No. 3 spring, which is sleeved on the cleaning guide rod. A rear bracket is fixedly connected to the support plate, and a lifting rod is fixedly connected to the rear bracket. A rotating rod is rotatably connected to the slide seat, and the lifting rod is used to squeeze the rotating rod to drive the slide seat to move upward.

[0011] Furthermore, the sweeping mechanism also includes a limit rod and a positioning strip. The limit rod is fixed to the machine base, and the limit rod and the steering sleeve are coaxial. A positioning groove is provided on the limit rod, and the positioning strip is fixed to the steering sleeve. Only when the positioning strip and the positioning groove are aligned can the cleaning brush start to brush downwards.

[0012] Furthermore, it also includes a swing mechanism for controlling the rotation of the steering sleeve, the swing mechanism includes a pushing frame, the pushing frame is fixedly connected to the rear bracket, the pushing frame is slidably connected with a fork rod, the guide rod of the fork rod is sleeved with a No. 4 spring, the eccentric position of the top of the steering sleeve is fixedly connected with a force rod, the fork rod rotates the steering sleeve by pushing the force rod, and a push rod is fixedly connected to the collecting frame, the push rod drives the cleaning brush to rotate and enter the collecting frame by pushing the force rod.

[0013] Furthermore, it also includes a discharge plate and a No. 3 torsion spring. The discharge plate is rotatably connected to the collection frame. After the discharge plate is opened, the welding slag in the collection frame can fall out. A No. 3 torsion spring is connected between the collection frame and the discharge plate.

[0014] Furthermore, it also includes a No. 1 magnet and a No. 2 magnet, wherein the No. 1 magnet is fixedly connected to the discharge plate, and the No. 2 magnet is fixedly connected to the cleaning brush, and the discharge plate can be automatically opened by the magnetic force of the No. 1 magnet and the No. 2 magnet.

[0015] The beneficial effects are as follows: 1. The collection frame in the device can actively invade the inside of the shell and constrain the distribution of welding slag during operation, and gather the welding slag splashed into the shell into a fixed range, which reduces the workload and difficulty of full-area cleaning, reduces the risk of misjudgment or missed detection, facilitates the subsequent cleaning and inspection of the shell after welding, and improves the production efficiency and quality of the shell; 2. During the process of the loading frame conveying the shell, the equipment can drive the positioning plate to position the shell in the front-to-back direction through the extrusion cooperation of the outer convex plate and the inner convex plate, and the positioning plate will drive the positioning rod to position the shell in the front-to-back direction through the pull rod, which ensures that the collection frame can accurately enter the shell and helps to improve the welding accuracy.

[0016] 3. During the resetting process of the support plate, the equipment can first drive the collection frame to rotate to a vertical state through the cooperation of the abutment plate and the steering block, and then drive the cleaning brush to rotate into the collection frame through the cooperation of the push rod and the force rod, so that the cleaning brush can sweep the welding slag on the inner wall of the collection frame downwards, thereby improving the continuous working efficiency of the equipment and reducing the downtime caused by cleaning the collection frame; 4. During the movement of the support plate, the device can drive the slide to move upward through the jacking rod and the rotating rod, so that the cleaning brush can be reset upward, and through the cooperation of the positioning bar and the positioning groove, it is ensured that the cleaning brush will move downward only after the collection frame is rotated to a vertical state, ensuring the reliability of the device operation; 5. In summary, this equipment effectively solves the problem of welding slag splashing into the inside of the shell during welding through the coordinated work of various mechanisms, improves the welding quality and production efficiency of the battery shell of new energy vehicles, and reduces the difficulty of subsequent cleaning and inspection. In addition, multiple mechanisms use mechanical coordination to replace traditional electric, pneumatic and hydraulic power, which effectively reduces the risk of flying sparks contacting wires, air pipes, and oil pipes during welding, improves the safety of the welding process, meets the explosion-proof requirements of the welding environment, and has significant technical advantages and practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the welding state of the present invention.

[0019] Figure 3 It is a schematic diagram of the connection relationship of the support plates of the present invention.

[0020] Figure 4It is a schematic diagram of the position relationship of the positioning plate of the present invention.

[0021] Figure 5 It is a schematic diagram of the sliding plate structure of the present invention.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the steering sleeve of the present invention.

[0023] Figure numbers: 10- base, 11- guide frame, 12- loading frame, 13- support plate, 14- collection frame, 15- No. 1 torsion spring, 16- electric slide rail, 17- automatic welding gun, 20- positioning plate, 21- positioning rod, 22- pull rod, 23- No. 2 torsion spring, 24- slideway, 25- sliding plate, 26- inner convex plate, 27- No. 1 spring, 28- outer convex plate, 30- cleaning guide rod, 31- slide seat, 32- No. 3 No. 4 spring, 33-steering sleeve, 34-cleaning brush, 40-resistance plate, 41-steering block, 50-rear bracket, 51-lifting rod, 52-rotating rod, 53-limiting rod, 54-pushing frame, 55-fork rod, 56-No. 4 spring, 57-push rod, 58-force rod, 60-positioning bar, 61-positioning groove, 70-discharging plate, 71-No. 3 torsion spring, 72-No. 1 magnet, 73-No. 2 magnet, 80-housing. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Embodiment 1: A new energy vehicle automatic welding device, such as Figure 1-Figure 3As shown, it includes a base 10, a guide frame 11, a loading frame 12, a support plate 13, a collecting frame 14, a No. 1 torsion spring 15, an electric slide rail 16 and an automatic welding gun 17. Two guide frames 11 are fixedly connected to the base 10 in a front-to-back symmetrical manner. Two groups of vertical electric slide rails 16 are arranged on the two guide frames 11, and one group of electric slide rails 16 is installed on the other group. The group of electric slide rails 16 is slidably connected with the automatic welding gun 17. The electric slide rails 16 and the automatic welding gun 17 are prior art means. The automatic welding gun 17 is driven to move on a horizontal plane by the two groups of electric slide rails 16 to realize automatic welding of the side seams of the shell 80. The loading frame 12 and the support plate 13 are slidably connected to the two guide frames 11. The loading frame 12 and the support plate 13 are driven to translate by an electric slide. Since sparks will be generated during welding, the use of pneumatic or hydraulic pressure is avoided. Power, the electric slide is the existing technical means, the loading frame 12 and the support plate 13 both slide in the left and right directions, the loading frame 12 is used to carry and transport the shell 80, and the support plate 13 is rotatably connected to a collecting frame 14, the width of the collecting frame 14 matches the width of the inside of the shell 80, so that the collecting frame 14 can fit and contact with the inner wall of the shell 80 when entering the inside of the shell 80, and the collecting frame 14 is used to constrain the distribution of welding slag and collect welding slag, and a No. 1 torsion spring 15 is sleeved on the rotating shaft of the collecting frame 14, one end of the No. 1 torsion spring 15 is fixedly connected to the collecting frame 14, and the other end of the No. 1 torsion spring 15 is fixedly connected to the support plate 13, and a positioning mechanism is connected to the loading frame 12, and in the process of the loading frame 12 transporting the shell 80 toward the collecting frame 14, the positioning mechanism can position the shell 80 on the loading frame 12, so that the collecting frame 14 can be accurately inserted into the shell 80.

[0026] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the positioning mechanism includes a positioning plate 20, a positioning rod 21, a pull rod 22, a second torsion spring 23, a slideway 24, a sliding plate 25, an inner convex plate 26, a first spring 27 and an outer convex plate 28. There are two positioning plates 20 symmetrically connected to the loading frame 12 for sliding connection. Each positioning plate 20 is symmetrically connected to rotation with two groups of positioning rods 21. There are two positioning rods 21 in each group. The two positioning rods 21 in the same group are distributed up and down, and the positioning rods 21 on the two positioning plates 20 are symmetrically arranged front to back. The positioning rods 21 are rotatably connected with the pull rods 22. The pull rods 22 are located on the side of the positioning rods 21 away from the opposite positioning plate 20. Four groups of slideways 24 are symmetrically provided on the loading frame 12 front to back. The ends of the pull rods 22 away from the positioning rods 21 are slidably connected to the slideways 24 on the loading frame 12 in a horizontal direction. When the positioning plates 20 move relative to each other, the positioning rods 21 are driven to rotate through the pull rods 22. The positioning rods 21 and the positioning plates 20 are arranged in a symmetrical manner. A second torsion spring 23 is sleeved on the rotating shaft of the rotation connection, one end of the second torsion spring 23 is fixedly connected to the positioning plate 20, and the other end of the second torsion spring 23 is fixedly connected to the positioning rod 21. The second torsion spring 23 is used to drive the positioning rod 21 to rotate and open so as to place the shell 80; the loading frame 12 is symmetrically slidably connected to two sliding plates 25, the sliding plate 25 is fixedly connected to the positioning plate 20 on the same side, and the sliding plate 25 is located on the opposite side of the two positioning plates 20, and the sliding plate 25 and A No. 1 spring 27 is sleeved on the guide rod to which the loading frame 12 is slidably connected. The No. 1 spring 27 is used to push the two sliding plates 25 to move away from the outer shell 80. The opposite ends of the two sliding plates 25 are fixedly connected with inner convex plates 26. The opposite ends of the two guide frames 11 are fixedly connected with outer convex plates 28 through brackets. The main structure of the outer convex plates 28 and the inner convex plates 26 is an isosceles trapezoid. The outer convex plates 28 and the inner convex plates 26 are squeezed together to drive the positioning plate 20 to move close to the outer shell 80.

[0027] The outer shell 80 which is bent and spot-welded at the side seam is placed on the loading frame 12, and then the loading frame 12 and the support plate 13 are controlled to slide relative to each other. During this process, the outer convex plate 28 will squeeze the inner convex plate 26, so that the two positioning plates 20 will move relative to each other, and the No. 1 spring 27 will be compressed to position the outer shell 80 in the front-to-back direction through the positioning plate 20. At the same time, the positioning plate 20 applies a pulling force to the pull rod 22 through the positioning rod 21, so that the pull rod 22 slides along the loading frame 12. During the sliding process of the pull rod 22, the positioning rod 21 will be driven to rotate in the direction close to the outer shell 80, and the No. 2 torsion spring 23 will be charged to position the outer shell 80 in the left-right direction through the positioning rod 21, and then the collection frame 14 will actively enter the inner shell 80, and the collection frame 14 is located on the upper side of the inner shell 80. Figure 2 The positional relationship between the collection frame 14 and the housing 80 is illustrated in FIG. Figure 2The cross-sectional structure of the shell 80 is shown in the figure, thereby separating the interior of the shell 80 into two unconnected spaces, and then the automatic welding gun 17 is driven to move by the electric slide rail 16 to weld the side seam on the top of the loading frame 12 through the automatic welding gun 17. During the welding process, the welding slag splashed into the interior of the shell 80 will be intercepted by the collecting frame 14, and part of the welding slag will fall directly into the collecting frame 14, thereby constraining the welding slag splashed into the interior of the shell 80 to a fixed range, realizing the aggregation and collection of the welding slag, facilitating the subsequent cleaning and inspection of the shell 80 after welding, and improving the production efficiency and quality of the shell 80; after the welding is completed, the loading frame 12 and the support plate 13 are controlled to move away from each other. After the outer convex plate 28 and the inner convex plate 26 are out of contact, the No. 1 spring 27 pushes the two positioning plates 20 to move away from the shell 80. At the same time, the positioning rod 21 will rotate in the direction away from the shell 80 under the action of the pull rod 22 and the No. 2 torsion spring 23, so as to facilitate the removal of the welded shell 80 from the loading frame 12.

[0028] Embodiment 2: Based on embodiment 1, Figure 1 and Figure 2 As shown, it also includes a cleaning mechanism to prevent welding slag from accumulating in the collection frame 14. The cleaning mechanism is installed on the machine base 10. The cleaning mechanism includes a cleaning guide rod 30, a slide seat 31, a steering sleeve 33 and a cleaning brush 34. Two groups of cleaning guide rods 30 are fixedly connected to the machine base 10 in a front-to-back symmetrical manner. Each group of cleaning guide rods 30 has two, and each group of cleaning guide rods 30 is slidably connected to a slide seat 31 in a vertical direction. The slide seat 31 is rotatably connected to a steering sleeve 33. A cleaning brush 34 for cleaning the inner surface of the collection frame 14 is fixedly connected to the steering sleeve 33, and bristles are provided at one end of the cleaning brush 34.

[0029] like Figure 1 and Figure 3 As shown, it also includes a support plate 40 and a steering block 41 for controlling the rotation of the collection frame 14. The opposite ends of the two guide frames 11 are fixedly connected to the support plate 40, and the steering block 41 is fixedly connected to the rotating shaft of the collection frame 14. The support plate 40 is used to resist the steering block 41 to make the collection frame 14 swing downward.

[0030] During the movement of the support plate 13 and the loading frame 12 in opposite directions, the abutment plate 40 will contact the upper side of the steering block 41, so that the collection frame 14 is swung downward to a vertical state through the blocking of the steering block 41 by the abutment plate 40, and the No. 1 torsion spring 15 will be charged, and then the steering sleeve 33 is controlled to rotate in the direction of the collection frame 14, so that the cleaning brush 34 enters the collection frame 14, and the bristles on the cleaning brush 34 contact the inner wall of the collection frame 14, and then the slide seat 31 is controlled to slide downward, so that the cleaning brush 34 brushes the welding slag on the surface of the collection frame 14 downward The steering block 41 and the abutment plate 40 will be out of contact during the relative movement of the support plate 13 and the loading frame 12, and the No. 1 torsion spring 15 will drive the collection frame 14 to swing upward and reset to a horizontal state, so as to continue to intercept and collect welding slag, and the slide 31 will reset upward. After the slide 31 is reset, the steering sleeve 33 drives the cleaning brush 34 to rotate and reset to the state shown in the figure, so as to enter the collection frame 14 next time it rotates.

[0031] Embodiment 3: Based on embodiment 2, Figure 1 , Figure 2 and Figure 6 As shown, it also includes a sweeping mechanism for driving a cleaning brush 34 to clean the collection frame 14. The sweeping mechanism is connected to the support plate 13. The sweeping mechanism includes a No. 3 spring 32, a rear bracket 50, a lifting rod 51, a rotating rod 52, a limiting rod 53 and a positioning strip 60. The cleaning guide rod 30 is sleeved with a No. 3 spring 32, and the No. 3 spring 32 is located on the upper side of the slide seat 31. The rear bracket 50 is fixedly connected to the side of the support plate 13 away from the collection frame 14. The rear bracket 50 is fixedly connected to the lifting rod 51. The lifting rod 51 consists of a horizontally arranged straight rod and a tilted straight rod. The horizontally arranged straight rod is fixedly connected to the rear bracket 50, and one end of the tilted straight rod close to the rear bracket 50 is higher than the other end. A rotating rod 52 is rotatably connected to the slide seat 31. When the support plate 13 and the loading frame 12 move relative to each other, the lifting rod 51 will squeeze the rotating rod 52 to move the slide seat 31 upward; two limit rods 53 are symmetrically fixed on the machine base 10, and the limit rod 53 and the steering sleeve 33 are coaxial, and two positioning grooves 61 are symmetrically provided on the limit rod 53, and the positioning groove 61 extends along the axial direction of the limit rod 53. The steering sleeve 33 is a hollow sleeve structure, and two positioning strips 60 are symmetrically fixed in the through hole of the steering sleeve 33. Only when the positioning strips 60 and the positioning grooves 61 are aligned, can the steering sleeve 33 move downward, so that the cleaning brush 34 will start to brush downward after entering the collection frame 14.

[0032] During the relative movement between the support plate 13 and the loading frame 12, the lifting rod 51 will press the rotating rod 52 upward, thereby driving the slide 31 to move upward along the cleaning guide rod 30 and reset. The third spring 32 will be compressed. After the slide 31 is reset upward, the steering sleeve 33 will rotate and reset. The state after rotation is as shown in FIG. Figure 2and Figure 6 As shown in , at this time, the positioning bar 60 and the positioning groove 61 are not aligned, preventing the slide seat 31 from sliding directly downward under the push of the No. 3 spring 32 after the lifting rod 51 and the rotating rod 52 are disengaged, because at this time the collection frame 14 on the support plate 13 has not yet completed the reset, and the collection frame 14 has not yet rotated downward to a vertical state; during the back-to-back movement of the support plate 13 and the loading frame 12, the lifting rod 51 and the rotating rod 52 will first disengage from contact, and when the support plate 13 is about to complete the reset and the collection frame 14 rotates downward, the steering sleeve 33 starts to rotate again, and after the support plate 13 is reset, the cleaning brush 34 just enters the collection frame 14, and the bristles on the cleaning brush 34 are in contact with the inner wall of the collection frame 14, the positioning bar 60 and the positioning groove 61 are aligned, and then the No. 3 spring 32 pushes the slide seat 31 to move downward, so that the cleaning brush 34 can move downward to clean the welding slag on the inner wall of the collection frame 14 downward.

[0033] like Figure 2 and Figure 3 As shown, it also includes a swing mechanism for controlling the rotation of the steering sleeve 33. The swing mechanism is connected to the rear bracket 50. The swing mechanism includes a push frame 54, a fork rod 55, a No. 4 spring 56, a push rod 57 and a force rod 58. Two push frames 54 are fixedly connected to the rear bracket 50 in a front-to-back symmetrical manner. The push frame 54 is slidably connected with a fork rod 55 in a horizontal direction. Two No. 4 springs 56 are sleeved on the guide rod to which the fork rod 55 and the push frame 54 are slidably connected, and the fork rod 55 is located between the two No. 4 springs 56. A force rod 58 is fixedly connected to the eccentric position of the top end of the steering sleeve 33. The fork rod 55 pushes the force rod 58 to make the steering sleeve 33 drive the cleaning brush 34 to rotate and move away from the collecting frame 14. A push rod 57 is fixedly connected to the end of the rotating shaft of the collecting frame 14. During the movement of the collecting frame 14 and the loading frame 12 away from each other, the push rod 57 pushes the force rod 58 to make the steering sleeve 33 drive the cleaning brush 34 to rotate and enter the collecting frame 14.

[0034] During the relative movement of the support plate 13 and the loading frame 12, the push rod 57 will contact the force-bearing rod 58. Since the force-bearing rod 58 is located in an eccentric position, the push rod 57 can push the force-bearing rod 58 to rotate the steering sleeve 33 so that the positioning bar 60 can be aligned with the positioning groove 61; during the relative movement of the support plate 13 and the loading frame 12, when the slide seat 31 is completely reset upward, the fork rod 55 will contact the force-bearing rod 58, and the fork rod 55 pushes the force-bearing rod 58 to rotate and reset the steering sleeve 33; by sliding the fork rod 55 on the push frame 54, the fork rod 55 can be translated to adapt to the rotation of the steering sleeve 33.

[0035] Embodiment 4: Based on the embodiment 3, Figure 3As shown, it also includes a discharge plate 70 and a No. 3 torsion spring 71 for facilitating the welding slag to fall out of the collection frame 14. The end of the collection frame 14 away from the support plate 13 is rotatably connected to the discharge plate 70. After the discharge plate 70 is opened, the cleaning brush 34 can sweep out the welding slag in the collection frame 14. A No. 3 torsion spring 71 is sleeved on the rotating shaft of the collection frame 14. One end of the No. 3 torsion spring 71 is fixedly connected to the collection frame 14, and the other end of the No. 3 torsion spring 71 is fixedly connected to the discharge plate 70.

[0036] like Figure 2 and Figure 3 As shown, it also includes a No. 1 magnet 72 and a No. 2 magnet 73 that automatically open the discharge plate 70. The No. 1 magnet 72 is fixedly connected to the discharge plate 70, and the No. 2 magnet 73 is fixedly connected to the cleaning brush 34. The magnetic forces of the No. 1 magnet 72 and the No. 2 magnet 73 repel each other.

[0037] When the cleaning brush 34 moves downward to clean the collection frame 14, the No. 1 magnet 72 and the No. 2 magnet 73 gradually approach each other, and the discharge plate 70 can be rotated and opened due to the magnetic repulsion, so that the welding slag in the collection frame 14 can fall out. When the cleaning brush 34 moves downward out of the range of the collection frame 14, since the No. 1 magnet 72 and the No. 2 magnet 73 gradually move away from each other, the No. 3 torsion spring 71 will drive the discharge plate 70 to rotate and reset; the cleaning brush 34 will move downward to the lower side of the collection frame 14 to prevent the cleaning brush 34 from blocking the collection frame 14 from rotating and resetting to a horizontal state.

[0038] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic welding device for new energy vehicles, comprising a base (10), a guide frame (11) fixedly connected to the base (10), two sets of vertical electric slide rails (16) arranged on the guide frame (11), one set of electric slide rails (16) being slidably connected to an automatic welding gun (17), characterized in that: The guide frame (11) is slidably connected to a loading frame (12) and a support plate (13); the loading frame (12) is used to carry and transport the shell (80); the support plate (13) is rotatably connected to a collecting frame (14); the collecting frame (14) is used to enter the shell (80) to restrict the distribution of welding slag and collect welding slag; a first torsion spring (15) is connected between the collecting frame (14) and the support plate (13); a positioning mechanism is connected to the loading frame (12); during the process of the loading frame (12) transporting the shell (80), the positioning mechanism can position the shell (80) on the loading frame (12) so that the collecting frame (14) can be accurately inserted into the shell (80).

2. The automatic welding equipment for new energy vehicles according to claim 1 is characterized in that: The positioning mechanism includes a positioning plate (20), the positioning plate (20) is slidably connected to the loading frame (12), a positioning rod (21) is rotatably connected to the positioning plate (20), a pull rod (22) is rotatably connected to the positioning rod (21), and the pull rod (22) is slidably connected to a slideway (24) on the loading frame (12). When the positioning plate (20) moves, the positioning rod (21) is driven to rotate through the pull rod (22), and a second torsion spring (23) is connected between the positioning rod (21) and the positioning plate (20).

3. The automatic welding equipment for new energy vehicles according to claim 2 is characterized in that: The positioning mechanism also includes a sliding plate (25), the sliding plate (25) is slidably connected to the loading frame (12), the sliding plate (25) and the positioning plate (20) on the same side are fixedly connected, a No. 1 spring (27) is sleeved on the guide rod of the sliding plate (25), an inner convex plate (26) is fixedly connected to the sliding plate (25), an outer convex plate (28) is fixedly connected to the guide frame (11), and the outer convex plate (28) and the inner convex plate (26) are pressed and matched to drive the positioning plate (20) to approach the housing (80).

4. The automatic welding equipment for new energy vehicles according to claim 1 is characterized in that: The invention also comprises a cleaning mechanism for preventing welding slag from accumulating in the collection frame (14), the cleaning mechanism comprising a cleaning guide rod (30), the cleaning guide rod (30) being fixedly connected to the machine base (10), a sliding seat (31) being slidably connected to the cleaning guide rod (30), a steering sleeve (33) being rotatably connected to the sliding seat (31), and a cleaning brush (34) for cleaning the inner surface of the collection frame (14) being fixedly connected to the steering sleeve (33).

5. The automatic welding equipment for new energy vehicles according to claim 4 is characterized in that: It also includes a resisting plate (40) and a steering block (41), wherein the resisting plate (40) is fixedly connected to the guide frame (11), and the steering block (41) is fixedly connected to the collection frame (14), and the resisting plate (40) is used to resist the steering block (41) to make the collection frame (14) swing downward.

6. The automatic welding equipment for new energy vehicles according to claim 4 is characterized in that: The cleaning device also includes a sweeping mechanism for driving a cleaning brush (34) to clean the collecting frame (14), wherein the sweeping mechanism includes a No. 3 spring (32), wherein the No. 3 spring (32) is sleeved on the cleaning guide rod (30), wherein a rear bracket (50) is fixedly connected to the support plate (13), wherein a lifting rod (51) is fixedly connected to the rear bracket (50), and a rotating rod (52) is rotatably connected to the slide seat (31), wherein the lifting rod (51) is used to squeeze the rotating rod (52) to drive the slide seat (31) to move upward.

7. The automatic welding equipment for new energy vehicles according to claim 6 is characterized in that: The sweeping mechanism further comprises a limit rod (53) and a positioning strip (60); the limit rod (53) is fixedly connected to the machine base (10); the limit rod (53) and the steering sleeve (33) are coaxial; a positioning groove (61) is provided on the limit rod (53); the positioning strip (60) is fixedly connected to the steering sleeve (33); and the cleaning brush (34) can start to sweep downward only when the positioning strip (60) and the positioning groove (61) are aligned.

8. The automatic welding equipment for new energy vehicles according to claim 7 is characterized in that: The invention also comprises a swing mechanism for controlling the rotation of the steering sleeve (33), the swing mechanism comprising a push frame (54), the push frame (54) being fixedly connected to the rear bracket (50), a fork rod (55) being slidably connected to the push frame (54), a guide rod of the fork rod (55) being sleeved with a No. 4 spring (56), a force rod (58) being fixedly connected to the eccentric position of the top end of the steering sleeve (33), the fork rod (55) pushing the force rod (58) to rotate the steering sleeve (33), a push rod (57) being fixedly connected to the collection frame (14), the push rod (57) pushing the force rod (58) to cause the steering sleeve (33) to drive the cleaning brush (34) to rotate and enter the collection frame (14).

9. The automatic welding equipment for new energy vehicles according to claim 4 is characterized in that: It also includes a discharge plate (70) and a No. 3 torsion spring (71). The discharge plate (70) is rotatably connected to the collection frame (14). When the discharge plate (70) is opened, welding slag in the collection frame (14) can fall out. A No. 3 torsion spring (71) is connected between the collection frame (14) and the discharge plate (70).

10. The automatic welding equipment for new energy vehicles according to claim 9, characterized in that: The device also comprises a first magnet (72) and a second magnet (73), wherein the first magnet (72) is fixedly connected to the discharge plate (70), and the second magnet (73) is fixedly connected to the cleaning brush (34), and the discharge plate (70) can be automatically opened by the magnetic force of the first magnet (72) and the second magnet (73).

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