A welding fixture for welding new energy automobile parts

Abstract

The application discloses a welding clamp for welding new energy automobile parts, and belongs to the technical field of welding clamps, which comprises a supporting frame, a mounting frame is fixedly installed at the top of the supporting frame, a supporting mechanism is arranged outside the mounting frame, a cooling mechanism is arranged outside the supporting frame, and a positioning mechanism is arranged outside the supporting mechanism. In the application, the bottom cover of the battery shell is supported by the lower clamping plate and clamped and fixed by the upper clamping plate, so that the deformation of the bottom cover of the battery shell caused by one-side pressing is avoided; meanwhile, the bottom cover is cooled by the upper clamping plate and the lower clamping plate, so that the expansion deformation of the bottom cover caused by high temperature generated in the welding process is avoided; and the positioning mechanism is arranged to position and place the battery shell and the bottom cover, so that the precision in the welding process is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding fixtures, in particular to a welding fixture for welding new energy automobile parts. BACKGROUND

[0002] In the new energy automobile production system, the welding process is used throughout the manufacture of core components such as the vehicle body frame, chassis structure, motor housing, etc., and the battery pack, as the core of energy storage for the whole vehicle, its internal battery shell welding processing is directly related to driving safety and battery life, becoming a key link in the welding process system.

[0003] At present, in the process of welding the battery shell of the new energy automobile, laser welding is mostly used, the shell is mainly composed of a shell body and a bottom cover, the bottom cover is welded on the shell body by laser welding, the shell body is placed on the welding fixture and fixed, then the bottom cover is placed on the top of the shell body, and a pressing structure is used to press the bottom cover tightly on the shell body, and a rotating structure is used to rotate the shell, so as to cooperate with the laser welding equipment for welding and fixing.

[0004] However, in the actual processing process, the material of the battery shell is mostly aluminum alloy, which will expand and deform under the action of high temperature during welding, but the fixture presses the bottom cover tightly on the shell body from the upper end, so that the bottom cover deforms under pressure during welding, and the expansion deformation during welding is added, so that the structure performance of the welded bottom cover is not stable, and after expansion welding, the internal stress of the shell cannot be released when it cools down, further ensuring the structure performance of the battery shell, therefore, a welding fixture for welding new energy automobile parts is needed to solve the above problems. SUMMARY

[0005] The present application aims to solve the problems in the prior art and provides a welding fixture for welding new energy automobile parts.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A welding fixture for welding new energy automobile parts, comprising a support frame, a mounting frame is fixedly installed on the top of the support frame, a support mechanism is arranged outside the mounting frame, a cooling mechanism is arranged outside the support frame, and a positioning mechanism is arranged outside the support mechanism.

[0008] The support mechanism comprises a first electric telescopic rod, a mounting plate is fixedly installed at the top of the first electric telescopic rod, a connecting column is fixedly installed at the bottom of the mounting plate, an upper clamping plate is rotatably installed at the bottom of the connecting column, a rotating seat is rotatably installed in the mounting frame, the rotating seat is rotatably installed at the top of the support frame, a hollow column is fixedly installed at the top inner wall of the rotating seat, a first gear is fixedly installed at the outside of the hollow column, a first motor is fixedly installed at the top of the mounting frame, a second gear is fixedly installed at the output end of the first motor and engaged with the first gear, a second electric telescopic rod is fixedly installed at the center of the top of the rotating seat, and a lower clamping plate is fixedly installed at the top of the second electric telescopic rod.

[0009] Preferably, the cooling mechanism comprises a first cooling bin, the first cooling bin is arranged in the upper clamping plate, a second cooling bin is arranged in the lower clamping plate, a cooling water tank is fixedly installed at the bottom of the support frame, a radiator is arranged in the cooling water tank, a circulating pump is fixedly installed at the outside of the support frame, a suction pipe is fixedly installed between the circulating pump and the cooling water tank, a liquid inlet pipe is arranged at the outside of the circulating pump, a backflow pipe is arranged at the other end of the cooling water tank, an upper connecting unit is arranged at the outside of the connecting column, and a lower connecting unit is arranged in the hollow column.

[0010] Preferably, the upper connecting unit comprises a first rotary ring, the first rotary ring is rotatably installed at the outside of the connecting column, a first connecting pipe is fixedly installed between the bottom of the first rotary ring and the upper clamping plate, the first connecting pipe is communicated with the first cooling bin, a first fixed ring is fixedly installed at the outside of the connecting column, a second rotary ring is rotatably installed at the outside of the connecting column, a second connecting pipe is fixedly installed between the bottom of the second rotary ring and the top of the upper clamping plate, and a second fixed ring is fixedly installed at the outside of the connecting column.

[0011] Preferably, the first rotary ring is rotatably installed at the outside of the first fixed ring, and the second rotary ring is rotatably installed at the outside of the second fixed ring.

[0012] Preferably, the lower connecting unit comprises a hollow pipe, the hollow pipe is fixedly installed at the top end of the support frame, a third rotary ring is rotatably installed at the outside of the hollow pipe, a third connecting pipe is fixedly installed between the top of the third rotary ring and the lower clamping plate, a third fixed ring is fixedly installed at the outside of the hollow pipe, the liquid inlet pipe penetrates through the hollow pipe, a fourth rotary ring is rotatably installed at the outside of the hollow pipe, and a fourth fixed ring is fixedly installed at the outside of the hollow pipe.

[0013] Preferably, the third rotating ring is rotatably installed inside the third fixed ring, and the fourth rotating ring is rotatably installed inside the fourth fixed ring.

[0014] Preferably, the positioning mechanism comprises a fixed frame fixedly installed inside the top of the rotating base, a second motor fixedly installed outside the fixed frame, a threaded rod fixedly installed at the output end of the second motor and rotatably installed on the fixed frame, a sliding base slidably installed inside the rotating base and threadedly installed outside the threaded rod, a positioning bin rotatably installed at the top of the sliding base, a third electric telescopic rod fixedly installed inside the positioning bin, a positioning clamp fixedly installed at the telescopic end of the third electric telescopic rod and penetrating through the positioning bin, two limiting rods fixedly installed at the bottom of the positioning clamp, and two limiting cylinders fixedly installed inside the positioning bin.

[0015] Preferably, the positioning bin and the positioning clamp are both right-angled structures, and each of the positioning bin and the positioning clamp is provided with two.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The supporting mechanism is provided, and a bidirectional fixing mode of lower support and clamping is adopted to avoid the single fixing mode of traditional clamps that only press from the upper end, thereby avoiding passive deformation of the bottom cover due to unilateral stress, the height of the lower clamping plate can be adjusted by the second electric telescopic rod, the battery shell bottom cover can be stably received, and the symmetrical and uniform clamping force is formed by the downward movement of the upper clamping plate driven by the first electric telescopic rod, so that the stress balance of the bottom cover during welding is ensured, thereby avoiding structural deformation caused by unilateral pressing.

[0018] 2. The cooling mechanism is provided, the cooling mechanism forms upper and lower bidirectional wrapping type cooling of the bottom cover through the first cooling bin inside the upper clamping plate and the second cooling bin inside the lower clamping plate, the multiple staggered flow resistance plates inside the cooling bin can slow down the flow speed of the cooling liquid, prolong the contact time of the cooling liquid and the clamping plate, ensure that the cooling liquid fully absorbs the heat generated during the welding process, reduce the temperature of the bottom cover, thereby avoiding the expansion deformation of the bottom cover caused by high temperature, and ensuring the precision of the connection between the bottom cover and the shell, and the rotating ring design of the upper connecting unit and the lower connecting unit of the cooling mechanism enables the cooling liquid to be transported when the rotating base rotates, thereby realizing the continuity and stability of the cooling liquid transportation during rotation.

[0019] 3. The positioning mechanism is arranged, through the corner positioning and the double positioning mode of the edge clamping, the positioning deviation problem in the welding process of the battery shell and the bottom cover is solved, the second motor drives the threaded rod to rotate, the sliding seat is driven to slide to the inside, the two positioning warehouses are accurately clamped at the two corners of the battery shell, the preliminary positioning of the battery shell is realized, the horizontal deviation of the shell in the welding process is avoided, then, the third electric telescopic rod drives the positioning clamp to move upwards, the positioning clamp is attached to the top edge of the shell, at this time, the bottom cover is placed on the top of the shell and attached to the positioning clamp, the precise alignment of the bottom cover and the shell is realized, the position deviation caused by manual placement is avoided, the connection edge of the bottom cover and the shell is completely matched during welding, the welding precision is improved, and the welding defects caused by the positioning deviation are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an appearance structure schematic diagram of the application;

[0021] Figure 2 It is a rear view structure schematic diagram of the application;

[0022] Figure 3 It is a front view structure schematic diagram of the application;

[0023] Figure 4 It is a side view structure schematic diagram of the application;

[0024] Figure 5 It is a support mechanism cross-sectional structure schematic diagram of the application;

[0025] Figure 6 It is a cooling mechanism and connected mechanism cross-sectional structure schematic diagram of the application;

[0026] Figure 7 It is a cooling mechanism cross-sectional structure schematic diagram of the application;

[0027] Figure 8 It is a cooling water tank and connected mechanism cross-sectional exploded structure schematic diagram of the application;

[0028] Figure 9 It is a upper clamp plate and connected mechanism cross-sectional structure schematic diagram of the application;

[0029] Figure 10 It is a upper clamp plate and connected mechanism cross-sectional structure schematic diagram of the application;

[0030] Figure 11 It is a lower clamp plate and connected mechanism cross-sectional structure schematic diagram of the application;

[0031] Figure 12 It is a lower clamp plate and connected mechanism cross-sectional structure schematic diagram of the application;

[0032] Figure 13 It is the schematic diagram of the appearance structure of the positioning mechanism and the connected mechanism of the application;

[0033] Figure 14 It is the schematic diagram of the sectional structure of the positioning mechanism of the application.

[0034] In the figure: 1, support frame; 2, mounting frame; 3, support mechanism; 31, first electric telescopic rod; 32, mounting plate; 33, connecting column; 34, upper clamping plate; 35, rotating seat; 36, hollow column; 37, first gear; 38, first motor; 39, second gear; 310, second electric telescopic rod; 311, lower clamping plate; 4, cooling mechanism; 41, first cooling bin; 42, second cooling bin; 43, cooling water tank; 44, radiator; 45, circulating pump; 46, suction pipe; 47, liquid inlet pipe; 48, return pipe; 49, upper connecting unit; 491, first rotating ring; 492, first connecting pipe; 493, first fixed ring; 494, second rotating ring; 495, second fixed ring; 496, second connecting pipe; 410, lower connecting unit; 4101, hollow pipe; 4102, third rotating ring; 4103, third connecting pipe; 4104, third fixed ring; 4105, fourth rotating ring; 4106, fourth connecting pipe; 4107, fourth fixed ring; 5, positioning mechanism; 51, fixed frame; 52, second motor; 53, threaded rod; 54, sliding seat; 55, positioning bin; 56, third electric telescopic rod; 57, positioning clamp; 58, limiting rod; 59, limiting cylinder. DETAILED DESCRIPTION

[0035] Reference Figures 1-4 A welding fixture for welding new energy automobile parts, comprising a support frame 1, a mounting frame 2 is fixedly installed on the top of the support frame 1, a support mechanism 3 is arranged outside the mounting frame 2, a cooling mechanism 4 is arranged outside the support frame 1, and a positioning mechanism 5 is arranged outside the support mechanism 3.

[0036] In the prior art, the high-temperature environment during welding can cause the shell and the bottom cover to expand and deform, and the current clamp fixing method (pressing the bottom cover tightly on the surface of the shell from the upper end) can additionally apply pressure on the basis of the high-temperature expansion, which not only causes the passive deformation of the bottom cover during welding due to the pressure, but also causes the expansion deformation and the pressure deformation to be superimposed on each other, resulting in that the structural performance of the bottom cover after welding cannot meet the stable standard, and the expansion effect generated during the high-temperature welding stage cannot be released through an effective way after the shell is cooled, and the residual stress accumulated in the shell can continuously act on the overall structure of the shell, further weakening the connection stability of the shell and the bottom cover, and ultimately resulting in that the overall structural performance of the shell cannot be reliably guaranteed, which can cause potential hidden dangers for subsequent use.

[0037] In the application, through the support mechanism 3, in use, the bottom cover of the battery shell is supported by the lower clamping plate 311, and is clamped and fixed by the upper clamping plate 34, so as to support and clamp the bottom cover of the battery shell, thereby avoiding deformation of the bottom cover of the battery shell caused by one side pressure, and through the cooling mechanism 4, in use, the bottom cover is cooled by the upper clamping plate 34 and the lower clamping plate 311, so as to avoid expansion and deformation of the bottom cover caused by high temperature generated in the welding process, and through the positioning mechanism 5, in use, the battery shell and the bottom cover are positioned and placed by the positioning clamp 57 cooperating with the positioning bin 55 structure, so as to have higher precision in the welding process.

[0038] Referring to Figure 5 The support mechanism 3 comprises a first electric telescopic rod 31, the first electric telescopic rod 31 is fixedly installed at the top of the mounting frame 2, a mounting plate 32 is fixedly installed at the top of the first electric telescopic rod 31, a connecting column 33 is fixedly installed at the bottom of the mounting plate 32, an upper clamping plate 34 is rotatably installed at the bottom of the connecting column 33, a rotating seat 35 is rotatably installed in the mounting frame 2, the rotating seat 35 is rotatably installed at the top of the support frame 1, a hollow column 36 is fixedly installed at the top inner wall of the rotating seat 35, a first gear 37 is fixedly installed at the outside of the hollow column 36, a first motor 38 is fixedly installed at the top of the mounting frame 2, a second gear 39 is fixedly installed at the output end of the first motor 38, and the second gear 39 is engaged with the first gear 37, a second electric telescopic rod 310 is fixedly installed at the center of the top of the rotating seat 35, and a lower clamping plate 311 is fixedly installed at the top of the second electric telescopic rod 310.

[0039] The second electric telescopic rod 310 drives the lower clamping plate 311 to adjust the height, and the battery shell bottom cover is placed on the lower clamping plate 311. After positioning, the first electric telescopic rod 31 drives the mounting plate 32 to move downward, and the mounting plate 32 drives the upper clamping plate 34 to move downward through the connecting column 33, so that the upper clamping plate 34 is pressed on the bottom cover, and the bottom cover is clamped and fixed by the lower clamping plate 311. During the welding process, the first motor 38 drives the second gear 39 to rotate, so that the second gear 39 drives the hollow column 36 to rotate through the meshing first gear 37, and the hollow column 36 drives the rotating seat 35 to rotate. The rotating seat 35 drives the second electric telescopic rod 310 and the lower clamping plate 311 to rotate. At this time, the upper clamping plate 34 is pressed on the battery shell and the lower clamping plate 311 under the pressing action of the first electric telescopic rod 31. At this time, when the battery shell and the lower clamping plate 311 are rotated, the upper clamping plate 34 is synchronously rotated on the connecting column 33, and the bottom cover and the battery shell are synchronously rotated and transposed, so that the rotating seat 35 drives the upper battery shell to rotate and transposition, so as to cooperate with the laser welding equipment to rotate and transposition welding.

[0040] Referring to Figures 6-9 The cooling mechanism 4 includes a first cooling bin 41 arranged inside the upper clamping plate 34, and a second cooling bin 42 arranged inside the lower clamping plate 311. The first cooling bin 41 and the second cooling bin 42 are provided with a plurality of staggered flow resistance plate structures inside, which are used for resisting the flow of cooling liquid and ensuring that the cooling liquid fully absorbs heat. The bottom of the support frame 1 is fixedly installed with a cooling water tank 43, and the inside of the cooling water tank 43 extends to the outside and is provided with a radiator 44. The inside of the cooling water tank 43 is provided with a plurality of staggered flow resistance plates, and the upper part of the radiator 44 is provided with a plurality of heat absorption fins. The heat absorption fins are arranged inside the cooling water tank 43 for absorbing the heat of the cooling liquid, and are cooled by the external heat absorption fins. The outside of the support frame 1 is fixedly installed with a circulating pump 45, and the circulating pump 45 and the cooling water tank 43 are fixedly installed with a suction pipe 46. The outside of the circulating pump 45 is provided with a liquid inlet pipe 47, and the other end of the cooling water tank 43 is provided with a return pipe 48. The outside of the connecting column 33 is provided with an upper connecting unit 49, and the inside of the hollow column 36 is provided with a lower connecting unit 410.

[0041] Referring to Figure 10The upper connecting unit 49 comprises a first rotating ring 491 rotatably installed outside the connecting column 33, a first connecting pipe 492 fixedly installed between the bottom of the first rotating ring 491 and the upper clamping plate 34, and in communication with the first cooling bin 41, a first fixed ring 493 fixedly installed outside the connecting column 33, and in communication with one end of the liquid inlet pipe 47, the liquid inlet pipe 47 penetrating through the connecting column 33, a second rotating ring 494 rotatably installed outside the connecting column 33, a second connecting pipe 496 fixedly installed between the bottom of the second rotating ring 494 and the top of the upper clamping plate 34, and in communication with the first cooling bin 41, and a second fixed ring 495 fixedly installed outside the connecting column 33, and in communication with one end of the liquid return pipe 48, the liquid return pipe 48 penetrating through the connecting column 33.

[0042] The first rotating ring 491 is rotatably installed outside the first fixed ring 493, and the second rotating ring 494 is rotatably installed outside the second fixed ring 495.

[0043] Referring to Figure 11 and Figure 12 The lower connecting unit 410 comprises a hollow pipe 4101 fixedly installed inside the top end of the support frame 1, a third rotating ring 4102 rotatably installed outside the hollow pipe 4101, a third connecting pipe 4103 fixedly installed between the top of the third rotating ring 4102 and the lower clamping plate 311, and in communication with one end of the second cooling bin 42, a third fixed ring 4104 fixedly installed outside the hollow pipe 4101, and in communication with one end of the liquid inlet pipe 47, the liquid inlet pipe 47 penetrating through the hollow pipe 4101, a fourth rotating ring 4105 rotatably installed outside the hollow pipe 4101, the top of the fourth rotating ring 4105 being in communication with the other end of the second cooling bin 42, a fourth fixed ring 4107 fixedly installed outside the hollow pipe 4101, and in communication with one end of the liquid return pipe 48, the liquid return pipe 48 penetrating through the hollow pipe 4101.

[0044] The third rotating ring 4102 is rotatably installed inside the third fixed ring 4104, and the fourth rotating ring 4105 is rotatably installed inside the fourth fixed ring 4107.

[0045] The cooling liquid inside the cooling water tank 43 is pumped out through the suction pipe 46 on the circulating pump 45, and is sent into the inside of the first fixed ring 493 through one end of the liquid inlet pipe 47, and is sent into the first connecting pipe 492 through the first rotating ring 491, and is sent into the first cooling chamber 41 of the upper clamping plate 34 through the first connecting pipe 492, and is sent into the third fixed ring 4104 through the other end, and is sent into the second cooling chamber 42 of the lower clamping plate 311 through the third connecting pipe 4103 on the third rotating ring 4102, and the cooling liquid flows inside the first cooling chamber 41, cooperates with the baffle structure, absorbs the heat generated during the welding process of the bottom cover, and sends the cooled cooling liquid into the inside of the second rotating ring 494 through the second connecting pipe 496, and sends the cooled cooling liquid into the return pipe 48 through the second fixed ring 495, and reenters the inside of the cooling water tank 43 through the return pipe 48, at the same time, the cooling liquid flows inside the second cooling chamber 42, cooperates with the baffle structure, absorbs the heat generated during the welding process of the bottom cover, and sends the cooled cooling liquid into the inside of the fourth rotating ring 4105 through the fourth connecting pipe 4106, and sends the cooled cooling liquid into the return pipe 48 through the fourth fixed ring 4107, and sends the cooled cooling liquid into the inside of the cooling water tank 43 through the return pipe 48, and the cooled cooling liquid flows inside the heat dissipation water tank, and is cooled by the radiator 44, and the cooled cooling liquid is reused for backflow, and circulates to realize heat dissipation of the bottom cover during the welding process, so as to avoid expansion deformation of the bottom cover due to high temperature during the welding process.

[0046] During the rotation of the rotating seat 35, the upper clamping plate 34 rotates synchronously on the connecting column 33, and during the rotation, the first rotating ring 491 is driven to rotate on the first fixed ring 493 through the first connecting pipe 492, and the second rotating ring is driven to rotate on the second fixed ring 495 through the second connecting pipe 496, and the third rotating ring 4102 is driven to rotate on the third fixed ring 4104 through the third connecting pipe 4103 of the lower clamping plate 311, and the fourth rotating ring 4105 is driven to rotate on the fourth fixed ring 4107 through the fourth connecting pipe 4106 of the lower clamping plate 311, so that the liquid inlet pipe 47 and the return pipe 48 can supply liquid and backflow to the upper clamping plate 34 and the lower clamping plate 311 synchronously during the rotation of the rotating table.

[0047] Referring to Figure 13 and Figure 14The positioning mechanism 5 comprises a fixed frame 51 fixedly installed on the inner side of the top of the rotating base 35, a second motor 52 fixedly installed on the outside of the fixed frame 51, a threaded rod 53 fixedly installed at the output end of the second motor 52 and rotatably installed on the fixed frame 51, a sliding base 54 slidably installed in the inside of the rotating base 35 and threadedly installed on the outside of the threaded rod 53, a positioning bin 55 rotatably installed on the top of the sliding base 54, a third electric telescopic rod 56 fixedly installed in the inside of the positioning bin 55, a positioning clamp 57 fixedly installed at the telescopic end of the third electric telescopic rod 56 and penetrating through the positioning bin 55, two limiting rods 58 fixedly installed on the bottom of the positioning clamp 57, and two limiting cylinders 59 fixedly installed in the inside of the positioning bin 55 and having one ends of the limiting rods 58 slidably installed in the inside of the limiting cylinders 59.

[0048] The positioning bin 55 and the positioning clamp 57 are both right-angled structures and are both provided with two.

[0049] By placing the shell of the battery shell on the mounting frame 2, then driving the threaded rod 53 to rotate through the second motor 52, the threaded rod 53 drives the sliding base 54 to slide inwards, the sliding base 54 drives the positioning bin 55 to slide inwards, the positioning bin 55 positions and fixes the two corner edges of the battery shell, then the positioning clamp 57 is driven upwards by the third electric telescopic rod 56, the positioning clamp 57 is moved to the top edge of the shell, then the bottom cover is placed on the top of the shell, so that the bottom cover and the shell are positioned and placed, and after the positioning and placing, the positioning clamp 57 is driven downwards by the third electric telescopic rod 56 and is reset.

[0050] In the application, first, the battery shell is placed on the mounting frame 2, the threaded rod 53 is driven to rotate through the second motor 52, the threaded rod 53 drives the positioning bin 55 to move inwards, the positioning bin 55 positions the two corner edges of the battery shell, the lower clamp plate 311 is driven to ascend and descend through the second electric telescopic rod 310, the top height of the lower clamp plate 311 is leveled with the height of the positioning bin 55, then the positioning clamp 57 is driven upwards by the third electric telescopic rod 56, the bottom cover is placed on the top of the battery shell and is attached to the positioning clamp 57, the bottom of the bottom cover is supported by the lower clamp plate 311, then the mounting plate 32 is driven downwards by the first electric telescopic rod 31, the mounting plate 32 drives the upper clamp plate 34 to press downwards through the connecting column 33, the upper clamp plate 34 is fixed to the bottom cover in cooperation with the lower clamp plate 311, after the fixing is completed, the positioning clamp 57 is driven downwards by the third electric telescopic rod 56 and is reset.

[0051] After the fixing is completed, the circulating pump 45 is started, the cooling liquid is extracted from the cooling water tank 43 through the extraction pipe 46 on the circulating pump 45, and the cooling liquid is sent into the first cooling bin 41 and the second cooling bin 42 through the liquid inlet pipe 47, and after the cooling liquid flows in the first cooling bin 41 and the second cooling bin 42, the cooling liquid is sent back to the inside of the cooling water tank 43 through the backflow pipe 48, and the heat dissipation is performed in cooperation with the radiator 44;

[0052] The connecting part of the battery shell and the bottom cover is welded and fixed by the laser welding head, when one side is welded, the second gear 39 is driven to rotate by the first motor 38, the hollow column 36 is driven to rotate by the meshing first gear 37, the hollow column 36 drives the rotating seat 35 to rotate, the rotating seat 35 drives the battery shell to rotate and change sides, until all four sides are welded.

Claims

1. A welding fixture for welding new energy automobile parts, comprising a support frame (1), characterized in that, The top of the support frame (1) is fixedly installed with a mounting frame (2), the outside of the mounting frame (2) is provided with a supporting mechanism (3), the outside of the support frame (1) is provided with a cooling mechanism (4), and the outside of the supporting mechanism (3) is provided with a positioning mechanism (5); The supporting mechanism (3) comprises a first electric telescopic rod (31), the top of the first electric telescopic rod (31) is fixedly installed on the top of the mounting frame (2), the top of the first electric telescopic rod (31) is fixedly installed with a mounting plate (32), the bottom of the mounting plate (32) is fixedly installed with a connecting column (33), the bottom of the connecting column (33) is rotatably installed with an upper clamping plate (34), the inside of the mounting frame (2) is rotatably installed with a rotating seat (35), the bottom of the rotating seat (35) is rotatably installed on the top of the support frame (1), the top inner wall of the rotating seat (35) is fixedly installed with a hollow column (36), the outside of the hollow column (36) is fixedly installed with a first gear (37), the top of the mounting frame (2) is fixedly installed with a first motor (38), the output end of the first motor (38) is fixedly installed with a second gear (39), the second gear (39) is engaged with the first gear (37), the top center of the rotating seat (35) is fixedly installed with a second electric telescopic rod (310), and the top of the second electric telescopic rod (310) is fixedly installed with a lower clamping plate (311); The cooling mechanism (4) comprises a first cooling bin (41), the inside of the upper clamping plate (34) is provided with the first cooling bin (41), and the inside of the lower clamping plate (311) is provided with a second cooling bin (42); The positioning mechanism (5) comprises a fixed frame (51), the top inner side of the rotating seat (35) is fixedly installed with the fixed frame (51), the outside of the fixed frame (51) is fixedly installed with a second motor (52), the output end of the second motor (52) is fixedly installed with a threaded rod (53), the threaded rod (53) is rotatably installed on the fixed frame (51), the inside of the rotating seat (35) is slidably installed with a sliding seat (54), the sliding seat (54) is threadedly installed on the outside of the threaded rod (53), the top of the sliding seat (54) is rotatably installed with a positioning bin (55), the inside of the positioning bin (55) is fixedly installed with a third electric telescopic rod (56), the telescopic end of the third electric telescopic rod (56) is fixedly installed with a positioning clamp (57) penetrating through the positioning bin (55), the bottom of the positioning clamp (57) is fixedly installed with two limiting rods (58), and the inside of the positioning bin (55) is fixedly installed with two limiting barrels (59).

2. The welding fixture for welding a new energy automobile part according to claim 1, characterized in that, The bottom of the support frame (1) is fixedly installed with a cooling water tank (43), the inside of the cooling water tank (43) extends to the outside and is provided with a radiator (44), the outside of the support frame (1) is fixedly installed with a circulating pump (45), the circulating pump (45) and the cooling water tank (43) are fixedly installed with a suction pipe (46) therebetween, the outside of the circulating pump (45) is provided with a liquid inlet pipe (47), the other end of the cooling water tank (43) is provided with a return pipe (48), the outside of the connecting column (33) is provided with an upper connecting unit (49), and the inside of the hollow column (36) is provided with a lower connecting unit (410).

3. The welding fixture for welding new energy automobile parts according to claim 2, characterized in that, The upper connecting unit (49) comprises a first rotating ring (491) rotatably installed on the outside of the connecting column (33), a first connecting pipe (492) fixedly installed between the bottom of the first rotating ring (491) and the upper clamping plate (34) and in communication with the first cooling bin (41), a first fixing ring (493) fixedly installed on the outside of the connecting column (33), a second rotating ring (494) rotatably installed on the outside of the connecting column (33), and a second connecting pipe (496) fixedly installed between the bottom of the second rotating ring (494) and the top of the upper clamping plate (34), and a second fixing ring (495) fixedly installed on the outside of the connecting column (33).

4. The welding fixture for welding new energy automobile parts according to claim 3, characterized in that, The first rotating ring (491) is rotatably installed on the outside of the first fixing ring (493), and the second rotating ring (494) is rotatably installed on the outside of the second fixing ring (495).

5. The welding fixture for welding new energy automobile parts according to claim 3, characterized in that, The lower connecting unit (410) comprises a hollow pipe (4101) fixedly installed on the inside of the top end of the support frame (1), a third rotating ring (4102) rotatably installed on the outside of the hollow pipe (4101), a third connecting pipe (4103) fixedly installed between the top of the third rotating ring (4102) and the lower clamping plate (311), a third fixing ring (4104) fixedly installed on the outside of the hollow pipe (4101), a fourth rotating ring (4105) rotatably installed on the outside of the hollow pipe (4101), and a fourth fixing ring (4107) fixedly installed on the outside of the hollow pipe (4101).

6. The welding fixture for welding a new energy automobile part according to claim 5, characterized in that, The third rotating ring (4102) is rotatably installed on the inside of the third fixing ring (4104), and the fourth rotating ring (4105) is rotatably installed on the inside of the fourth fixing ring (4107).

7. The welding fixture for welding a new energy automobile part according to claim 1, characterized in that, The positioning bin (55) and the positioning clamp (57) are both right-angled structures, and both are provided with two.

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