Automatic turnover device for welding processing of tank type new energy vehicle chassis

Abstract

The invention relates to the technical field of vehicle chassis welding, and provides an automatic turnover device for tank type new energy vehicle chassis welding machining, which comprises two parallel supporting seats, mounting grooves are formed in the two supporting seats, and first air cylinders are fixedly connected to the inner sides of the two mounting grooves; the output ends of the two first air cylinders are both fixedly connected with movable seats, one ends of the two movable seats are both rotationally connected with connecting shafts, a turnover frame is fixedly connected between the two connecting shafts, a first motor is fixedly installed on the outer side of one movable seat, and a locking mechanism used for limiting rotation of the connecting shafts is arranged on the other movable seat. A positioning mechanism is arranged on one side of the overturning frame, and a dust suction mechanism used for sucking welding fume is arranged in the middle of the overturning frame. By means of the integrated dust collection mechanism, welding fume is sucked in real time in the welding process, poisonous gas is prevented from drifting into air, and therefore air pollution is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle chassis welding, in particular, to an automatic overturning device for tank new energy vehicle chassis welding processing. BACKGROUND

[0002] The new energy tank vehicle chassis adopts a special-shaped structure (such as a composite frame of a tank body support beam and a battery compartment), and the welding points are mainly distributed on the bottom surface and the side surface. In the traditional welding process, the chassis needs to be overturned multiple times to adjust the welding position, which requires corresponding overturning equipment.

[0003] After searching, the Chinese patent (publication number: CN216462786U) discloses a "vehicle processing chassis welding positioning support, including a support, the both ends of the support are fixedly connected with a turnover disc, one end of the turnover disc is movably installed with a transmission shaft, one end of the transmission shaft is provided with a turnover machine, the outer wall of the transmission shaft is movably connected with a lifting sliding block, the outer side of the lifting sliding block is provided with a lifting frame, the inner side of the lifting frame is provided with a lifting slide rail, the lifting sliding block is movably installed on the inner side of the lifting slide rail, the turnover disc and the support are fixedly installed with a fixed clamping plate".

[0004] However, in the implementation of the related technical process, the technical scheme has certain technical defects: First, a large amount of welding dust is generated during the welding process of the chassis, and there are toxic gases in the welding dust. If the welding dust is dispersed into the air, it will seriously pollute the air and cause pollution to the workshop environment, affecting the health of the workers. Second, the device directly rotates the turnover disc by using the motor, which is easy to deviate due to inertia or external force after rotation, and needs to be recalibrated to reduce the welding precision.

[0005] Therefore, the present application provides an automatic overturning device for tank new energy vehicle chassis welding processing. SUMMARY

[0006] The present application provides an automatic overturning device for tank new energy vehicle chassis welding processing, which solves the problem that the welding process generates smoke dust that easily pollutes the environment.

[0007] The technical scheme of the present application is as follows: an automatic overturning device for tank new energy vehicle chassis welding processing, comprising two parallel support seats, two installation grooves are formed in the two support seats, first air cylinders are fixedly connected to the inner sides of the two installation grooves, output ends of the two first air cylinders are fixedly connected with movable seats, the two movable seats are slidingly connected with the inner walls of the corresponding installation grooves, one end of each of the two movable seats is rotatably connected with a connecting shaft, a overturning frame is fixedly connected between the two connecting shafts, a first motor is fixedly installed on the outer side of one of the movable seats, an output shaft of the first motor is fixedly connected with the corresponding connecting shaft, a locking mechanism for limiting the rotation of the connecting shaft is arranged on the other movable seat, a positioning mechanism for fixing the vehicle chassis is arranged on one side of the overturning frame, and a dust suction mechanism for sucking welding dust is arranged in the middle of the overturning frame.

[0008] Preferably, the dust suction mechanism comprises bearing seats fixedly connected at two ends of the overturning frame respectively, hollow shafts are rotatably connected to the two bearing seats, a wind tube is fixedly connected between the two hollow shafts, a dust suction cover is fixedly connected to the inlet end of the wind tube, a suction impeller is rotatably connected to the inner side of the wind tube, a filter element is arranged at the outlet end of the wind tube, and a driving assembly for simultaneously driving the suction impeller to rotate and the hollow shaft to reciprocatingly rotate is arranged at one end of the overturning frame.

[0009] Preferably, the driving assembly comprises a rotating shaft, the rotating shaft penetrates through the hollow shaft and is rotatably connected with the inner wall of the wind tube, a first bevel gear is fixedly connected to one end of the rotating shaft, a second bevel gear is coaxially fixedly connected to the suction impeller, the second bevel gear is engaged with the first bevel gear, a support is fixedly connected to the outer side of the overturning frame, a second motor is fixedly installed on the outer side of the support, an output shaft of the second motor is fixedly connected with the rotating shaft, and a transmission member for driving the hollow shaft to reciprocatingly rotate by cooperating with the starting of the second motor is arranged on the side wall of the overturning frame.

[0010] Preferably, the transmission member comprises a first gear fixedly connected to the output shaft of the second motor, a second gear rotatably connected to the outer side of the overturning frame and engaged with the first gear, a sector gear coaxially fixedly connected to the second gear, a third gear fixedly connected to the hollow shaft near one end of the second motor, and the sector gear and the third gear are intermittently engaged, a torsional spring is sleeved on the hollow shaft, one end of the torsional spring is welded with the bearing seat, and the other end of the torsional spring is welded with the third gear.

[0011] Preferably, the second bevel gear and the first bevel gear have the same number of teeth, and the sector gear and the third gear have a tooth ratio of 1:10.

[0012] Preferably, the filter comprises a mounting box fixedly connected to the top of the air duct, the mounting box is communicated with the outlet end of the air duct, the inner side of the mounting box is fixedly connected with an activated carbon filter element, and a plurality of air outlet holes are formed in the top of the mounting box.

[0013] Preferably, the positioning mechanism comprises guide seats fixedly connected to the inner sides of the two ends of the turnover frame respectively, bidirectional screws are rotatably connected to the inner sides of the two guide seats, sliding blocks are threadedly connected to the two ends of the two bidirectional screws, the sliding blocks are slidably connected with the inner walls of the corresponding guide seats, and clamping plates are fixedly connected to the bottoms of the sliding blocks.

[0014] Preferably, the positioning mechanism further comprises a third motor fixedly installed on the outer side of the turnover frame, the output shaft of the third motor is fixedly connected with one of the bidirectional screws, the same end of the two bidirectional screws is fixedly connected with two transmission pulleys, and the two transmission pulleys are drivingly connected through a belt.

[0015] Preferably, the locking mechanism comprises a rotating seat fixedly connected to the end of the connecting shaft, a plurality of circumferentially arranged clamping grooves are formed in the outer edge of the rotating seat, one side of the movable seat is fixedly connected with an extension plate, a sliding rod penetrating through the extension plate is slidably connected to the extension plate, a clamping block in sliding fit with the clamping grooves is fixedly connected to the top of the sliding rod, a spring is sleeved on the sliding rod, and the two ends of the spring are respectively in abutment with the clamping block and the extension plate.

[0016] Preferably, the locking mechanism further comprises a second air cylinder fixedly connected to the outer side of the extension plate, an arc-shaped top block is fixedly connected to the output end of the second air cylinder, and an arc-shaped pressing block is fixedly connected to the bottom of the sliding rod, the arc-shaped top block can be in abutment with the arc-shaped pressing block through translation.

[0017] The working principle and beneficial effects of the present application are as follows: 1. By integrating the dust collection mechanism, the welding fumes are sucked in real time during the welding process, preventing toxic gases (such as particulate matter and harmful gases in welding fumes) from being dispersed into the air, thereby significantly reducing air pollution, protecting the health of workers, and improving the air quality in the workshop.

[0018] 2. By the cooperation of the clamping grooves and the clamping blocks on the rotating seat, when the arc-shaped top block of the second air cylinder drives the arc-shaped pressing block to move upward, the sliding rod drives the clamping block to insert into the clamping groove, rigidly limiting the rotation of the connecting shaft, so that the position can be automatically locked after the turnover frame is adjusted in place, effectively preventing the deviation caused by inertia or external force (such as welding vibration), ensuring the accuracy of the chassis welding position, and improving the welding quality and processing efficiency.

[0019] 3. By the height adjustment and automatic turnover functions, the vehicle chassis welding at multiple angles is supported, and rapid positioning is realized, which significantly reduces the manual operation intensity and shortens the welding period. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic view of an automatic overturning device for tank new energy vehicle chassis welding processing of the application; Figure 2 It is a partial structural schematic view of the application; Figure 3 It is a structural schematic view of a dust suction mechanism of the application; Figure 4 It is a structural schematic view of a driving assembly of the application; Figure 5 It is a structural schematic view of a transmission member of the application; Figure 6 It is a structural schematic view of a filter member of the application; Figure 7 It is a structural schematic view of a positioning mechanism of the application; Figure 8 It is a structural schematic view of a locking mechanism of the application.

[0022] In the figure: 1, support seat; 2, mounting groove; 3, first air cylinder; 4, movable seat; 5, connecting shaft; 6, overturning frame; 7, first motor; 8, dust suction mechanism; 81, bearing seat; 82, hollow shaft; 83, air duct; 84, dust suction cover; 85, air suction impeller; 86, driving assembly; 861, rotating shaft; 862, first bevel gear; 863, second bevel gear; 864, support; 865, second motor; 866, transmission member; 8661, first gear; 8662, second gear; 8663, sector gear; 8664, third gear; 8665, torsional spring; 87, filter member; 871, mounting box; 872, activated carbon filter element; 873, air outlet hole; 9, positioning mechanism; 91, guide seat; 92, sliding block; 93, bidirectional screw rod; 94, clamping plate; 95, third motor; 96, transmission pulley; 10, locking mechanism; 101, rotating seat; 102, clamping groove; 103, extension plate; 104, sliding rod; 105, clamping block; 106, spring; 107, arc surface pressing block; 108, second air cylinder; 109, arc surface pressing block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the application will be described clearly and completely below in conjunction with the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work are involved in the protection scope of the application.

[0024] Embodiments, such asFigures 1 to 8 The embodiment shown provides an automatic overturning device for tank new energy vehicle chassis welding processing, which comprises two parallel support seats 1, two support seats 1 are provided with mounting grooves 2, the inner sides of the two mounting grooves 2 are fixedly connected with first air cylinders 3, the output ends of the two first air cylinders 3 are fixedly connected with movable seats 4, the two movable seats 4 are slidingly connected with the inner walls of the corresponding mounting grooves 2, one end of each of the two movable seats 4 is rotatably connected with a connecting shaft 5, the two connecting shafts 5 are fixedly connected with an overturning frame 6, the outer side of one of the movable seats 4 is fixedly provided with a first motor 7, the output shaft of the first motor 7 is fixedly connected with the corresponding connecting shaft 5, the other movable seat 4 is provided with a locking mechanism 10 for limiting the rotation of the connecting shaft 5, one side of the overturning frame 6 is provided with a positioning mechanism 9 for fixing the vehicle chassis, and the middle part of the overturning frame 6 is provided with a dust collection mechanism 8 for inhaling welding fume.

[0025] Before welding, the vehicle chassis to be welded is fixed on the overturning frame 6 through the positioning mechanism 9, and then the two first air cylinders 3 are controlled to drive the movable seat to move vertically, so that the two connecting shafts 5 drive the overturning frame 6 to move in the vertical direction, so as to adjust the welding height of the vehicle chassis, which is simple to operate and can realize flexible adjustment of the welding height of the vehicle chassis. During welding, the first motor 7 is started to drive the connecting shaft 5 to rotate, so that the connecting shaft 5 drives the overturning frame 6 to rotate, thereby realizing overturning of the vehicle chassis to change the welding position, which can realize automatic overturning of the vehicle chassis to meet the welding work at different positions, and the dust collection mechanism 8 can inhale welding fume to avoid problems.

[0026] Further, the dust collection mechanism 8 comprises bearing seats 81 fixedly connected at both ends of the overturning frame 6, hollow shafts 82 rotatably connected on the two bearing seats 81, a wind pipe 83 fixedly connected between the two hollow shafts 82, a dust collection cover 84 fixedly connected to the inlet end of the wind pipe 83, a suction impeller 85 rotatably connected to the inner side of the wind pipe 83, a filter 87 arranged at the outlet end of the wind pipe 83, and a driving assembly 86 arranged at one end of the overturning frame 6 for simultaneously driving the suction impeller 85 to rotate and the hollow shaft 82 to reciprocatingly rotate.

[0027] The driving assembly 86 is started to drive the suction impeller 85 to rotate, so that the pressure inside the wind pipe 83 decreases, the dust collection cover 84 at the inlet end of the wind pipe 83 is in a negative pressure state, the dust collection cover 84 inhales welding fume into the inside of the wind pipe 83, and the driving assembly 86 also drives the hollow shaft 82 to reciprocatingly rotate, so that the wind pipe 83 drives the dust collection cover 84 to reciprocatingly swing in the vertical direction, which can greatly increase the dust collection range of the dust collection cover 84, completely inhale welding fume, and avoid the welding fume from being scattered into the air to cause pollution.

[0028] Further, the driving assembly 86 comprises a rotating shaft 861 penetrating through the hollow shaft 82 and being rotationally connected with the inner wall of the air duct 83, one end of the rotating shaft 861 is fixedly connected with a first bevel gear 862, the suction impeller 85 is coaxially fixedly connected with a second bevel gear 863, the second bevel gear 863 is engaged with the first bevel gear 862, the second bevel gear 863 has the same number of teeth as the first bevel gear 862, the outer side of the turnover frame 6 is fixedly connected with a support 864, the outer side of the support 864 is fixedly installed with a second motor 865, the output shaft of the second motor 865 is fixedly connected with the rotating shaft 861, the side wall of the turnover frame 6 is provided with a transmission part 866 for driving the hollow shaft 82 to reciprocatingly rotate by cooperating with the starting of the second motor 865, the transmission part 866 comprises a first gear 8661 fixedly connected on the output shaft of the second motor 865, the outer side of the turnover frame 6 is rotationally connected with a second gear 8662 engaged with the first gear 8661, the second gear 8662 is coaxially fixedly connected with a sector gear 8663, the hollow shaft 82 close to one end of the second motor 865 is fixedly connected with a third gear 8664, the sector gear 8663 is intermittently engaged with the third gear 8664, the number of teeth of the sector gear 8663 and the third gear 8664 is in a ratio of 1:10, the hollow shaft 82 is sleeved with a torsion spring 8665, one end of the torsion spring 8665 is welded with the bearing seat 81, the other end of the torsion spring 8665 is welded with the third gear 8664.

[0029] During welding, the rotating shaft 861 is driven to rotate by starting the second motor 865, so that the first bevel gear 862 synchronously rotates, so that the second bevel gear 863 drives the suction impeller 85 to rotate, so that the pressure inside the air duct 83 decreases, so that the inside of the dust suction hood 84 at the inlet end of the air duct 83 is in a negative pressure state, so that the dust suction hood 84 sucks the welding fume into the inside of the air duct 83; at the same time, the first gear 8661 is driven to rotate by the second motor 865, so that the second gear 8662 drives the sector gear 8663 to synchronously rotate, when the sector gear 8663 is engaged with the third gear 8664, the third gear 8664 drives the hollow shaft 82 to rotate, at this time, the torsion spring 8665 is contracted to accumulate potential energy, when the sector gear 8663 is disengaged from the third gear 8664, the torsion spring 8665 releases the potential energy to drive the third gear 8664 to reversely rotate the hollow shaft 82, so as to be cyclic, the hollow shaft 82 can reciprocatingly rotate, so that the air duct 83 drives the dust suction hood 84 to reciprocatingly swing in the vertical direction, so that the dust suction range of the dust suction hood 84 can be greatly increased, so that the welding fume can be completely sucked and removed, and the welding fume is prevented from being scattered into the air to cause pollution.

[0030] Further, the filter part 87 comprises a mounting box 871 fixedly connected at the top of the air duct 83, the mounting box 871 is communicated with the outlet end of the air duct 83, the inner side of the mounting box 871 is fixedly connected with an activated carbon filter element 872, a plurality of evenly distributed air outlet holes 873 are formed at the top of the mounting box 871.

[0031] When the dust cover 84 guides the welding fume into the inside of the air duct 83, the welding fume is continuously guided into the inside of the installation box 871 from the outlet end of the air duct 83, and then the toxic gas and impurities in the welding fume are filtered through the activated carbon filter element 872, and the clean air is discharged through the air outlet hole 873, so that the air in the welding environment can be purified, and the health of the welding environment protection workers can be effectively improved.

[0032] Further, the positioning mechanism 9 comprises guide seats 91 fixedly connected to the inner sides of the two ends of the turnover frame 6, two-way screws 93 rotatably connected to the inner sides of the two guide seats 91, sliding blocks 92 threadedly connected to the two ends of the two-way screws 93, the sliding blocks 92 being slidably connected to the inner walls of the corresponding guide seats 91, clamping plates 94 fixedly connected to the bottoms of the sliding blocks 92, a third motor 95 fixedly installed on the outer side of the turnover frame 6, the output shaft of the third motor 95 being fixedly connected with one of the two-way screws 93, transmission pulleys 96 fixedly connected to the same end of the two-way screws 93, and the two transmission pulleys 96 being drivingly connected through a belt.

[0033] By driving the corresponding two-way screw 93 to rotate through the third motor 95, the two-way screws 93 are synchronously rotated under the driving action of the two transmission pulleys 96, so that the two sliding blocks 92 on the two-way screws 93 can move towards each other, which makes the two clamping plates 94 move towards each other and clamp and fix the vehicle chassis with the welding part, so that the vehicle chassis can be quickly positioned, and the processing efficiency of the vehicle chassis can be improved.

[0034] Further, the locking mechanism 10 comprises a rotating seat 101 fixedly connected to the end of the connecting shaft 5, a plurality of circumferentially arrayed clamping grooves 102 formed in the outer edge of the rotating seat 101, an extension plate 103 fixedly connected to one side of one of the movable seats 4, a sliding rod 104 slidably connected to the extension plate 103 and penetrating through the extension plate 103, a clamping block 105 fixedly connected to the top of the sliding rod 104 and slidably matched with the clamping grooves 102, a spring 106 sleeved on the sliding rod 104, the two ends of the spring 106 being in abutment with the clamping block 105 and the extension plate 103 respectively, a second air cylinder 108 fixedly connected to the outer side of the extension plate 103, an arc-shaped top block 109 fixedly connected to the output end of the second air cylinder 108, an arc-shaped pressing block 107 fixedly connected to the bottom of the sliding rod 104, and the arc-shaped top block 109 being capable of being in abutment with the arc-shaped pressing block 107 through translation.

[0035] When it is needed to overturn the vehicle chassis to adjust the welding position, the first motor 7 is started to drive the connecting shaft 5 to rotate, so that the connecting shaft 5 drives the turnover frame 6 to rotate, thereby realizing the overturning of the vehicle chassis to change the welding position, so that the automatic overturning of the vehicle chassis can be realized to meet the welding work in different positions; and after the welding position is determined, the second air cylinder 108 is controlled to drive the arc surface top block 109 to move close to and contact with the arc surface pressing block 107, so that the arc surface top block 109 exerts an upward thrust on the arc surface pressing block 107, so that the arc surface pressing block 107 drives the sliding rod 104 to slide upward, so that the clamping block 105 is in sliding fit with the corresponding clamping groove 102 on the rotating seat 101, so that the rotating of the rotating seat 101 can be limited, and the rotating of the connecting shaft 5 cannot be realized, so that the turnover frame 6 can be kept stable at the current position, and the problem that the welding precision is affected due to the position deviation of the turnover frame 6 caused by vibration or external force can be avoided.

[0036] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic turnover device for welding processing of a new energy vehicle chassis, comprising two parallel supporting seats (1), two installation grooves (2) are formed in each of the two supporting seats (1), a first air cylinder (3) is fixedly connected to the inner side of each of the two installation grooves (2), an activity seat (4) is fixedly connected to the output end of each of the two first air cylinders (3), and each of the two activity seats (4) is slidingly connected with the inner wall of the corresponding installation groove (2), characterized in that, One end of two movable seats (4) is rotatably connected with a connecting shaft (5), the connecting shaft (5) is fixedly connected with a turnover frame (6), one side of the turnover frame (6) is provided with a positioning mechanism (9) for fixing the vehicle chassis, the middle of the turnover frame (6) is provided with a dust suction mechanism (8) for sucking welding fume.

2. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 1, characterized in that, The dust suction mechanism (8) comprises bearing seats (81) fixedly connected at both ends of the turnover frame (6), hollow shafts (82) rotatably connected on the bearing seats (81), a wind pipe (83) fixedly connected between the hollow shafts (82), a dust suction cover (84) fixedly connected with the inlet end of the wind pipe (83), a suction impeller (85) rotatably connected on the inner side of the wind pipe (83), a filter (87) arranged at the outlet end of the wind pipe (83), and a driving assembly (86) arranged at one end of the turnover frame (6) for simultaneously driving the suction impeller (85) to rotate and the hollow shaft (82) to reciprocatingly rotate.

3. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 2, characterized in that, The driving assembly (86) comprises a rotating shaft (861) penetrating through the hollow shaft (82) and rotatably connected with the inner wall of the wind pipe (83), a first bevel gear (862) fixedly connected at one end of the rotating shaft (861), a second bevel gear (863) coaxially fixedly connected with the suction impeller (85), the second bevel gear (863) meshing with the first bevel gear (862), a bracket (864) fixedly connected on the outer side of the turnover frame (6), a second motor (865) fixedly mounted on the outer side of the bracket (864), the output shaft of the second motor (865) fixedly connected with the rotating shaft (861), and a transmission member (866) arranged on the side wall of the turnover frame (6) and driven by the starting of the second motor (865) to drive the hollow shaft (82) to reciprocatingly rotate.

4. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 3, characterized in that, The transmission member (866) comprises a first gear (8661) fixedly connected on the output shaft of the second motor (865), a second gear (8662) rotatably connected on the outer side of the turnover frame (6) and meshing with the first gear (8661), a sector gear (8663) coaxially fixedly connected with the second gear (8662), a third gear (8664) fixedly connected with the hollow shaft (82) near one end of the second motor (865), the sector gear (8663) and the third gear (8664) intermittently meshing, and a torsion spring (8665) sleeved on the hollow shaft (82), one end of the torsion spring (8665) being welded with the bearing seat (81), and the other end of the torsion spring (8665) being welded with the third gear (8664).

5. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 4, characterized in that, The second bevel gear (863) has the same number of teeth as the first bevel gear (862), and the number of teeth of the sector gear (8663) and the third gear (8664) is in a ratio of 1:

10.

6. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 2, characterized in that, The filter (87) comprises a mounting box (871) fixedly connected to the top of the air duct (83), the mounting box (871) is communicated with the outlet end of the air duct (83), the inner side of the mounting box (871) is fixedly connected with an activated carbon filter element (872), and a plurality of evenly distributed air outlet holes (873) are formed in the top of the mounting box (871).

7. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 1, characterized in that, The positioning mechanism (9) comprises guide seats (91) fixedly connected to the inner sides of both ends of the turnover frame (6), bidirectional screws (93) rotatably connected to the inner sides of the two guide seats (91), and sliding blocks (92) threadedly connected to the two ends of the bidirectional screws (93).

8. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 7, characterized in that, The positioning mechanism (9) further comprises a third motor (95) fixedly installed on the outer side of the turnover frame (6), the output shaft of the third motor (95) is fixedly connected with one of the bidirectional screws (93), and the same end of the two bidirectional screws (93) is fixedly connected with a transmission belt pulley (96), and the two transmission belt pulleys (96) are drivingly connected through a belt.

9. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 1, characterized in that, The locking mechanism (10) comprises a rotating seat (101) fixedly connected to the end of the connecting shaft (5), a plurality of circumferentially arranged clamping grooves (102) are formed in the outer edge of the rotating seat (101), one side of the movable seat (4) is fixedly connected with an extension plate (103), a sliding rod (104) penetrating through the extension plate (103) is slidingly connected to the extension plate (103), the top of the sliding rod (104) is fixedly connected with a clamping block (105) slidingly matched with the clamping groove (102), a spring (106) is sleeved on the sliding rod (104), and the two ends of the spring (106) are respectively in contact with the clamping block (105) and the extension plate (103).

10. The automatic turnover device for welding processing of a tank new energy vehicle chassis according to claim 9, characterized in that, The locking mechanism (10) further comprises a second air cylinder (108) fixedly connected to the outer side of the extension plate (103), the output end of the second air cylinder (108) is fixedly connected with an arc-shaped top block (109), the bottom of the sliding rod (104) is fixedly connected with an arc-shaped pressing block (107), and the arc-shaped top block (109) can be in contact with the arc-shaped pressing block (107) through translation.

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