A welding fixture for new energy vehicle battery trays

Abstract

The present invention discloses a welding processing fixture for a battery tray of a new energy vehicle, comprising a track frame and a fixed clamping unit fixed to the top thereof and a movable clamping unit slidably connected thereto; the movable clamping unit comprises a movable frame, and a hydraulic pump for driving the movable clamping unit to move is fixedly connected to the movable frame. In the present invention, a clamping block fixed to the bottom end is driven by a guide bar to press the tray body against a support seat fixed to the top of the support frame or a support frame fixed to the top of the movable frame, and a linkage assembly is driven by a fixed-point clamping piece in the fixed clamping unit so that the linkage assembly is fitted to the support column of the tray body for position limitation, so that the rotatable support column is in a non-rotatable limited state through the linkage assembly, thereby achieving a high degree of fit for the irregular edge clamping method of the new energy battery tray body of the present invention, and reducing the phenomenon of customized fixtures due to a variety of different irregular tray frames.

Description

Technical Field

[0001] The present invention relates to the technical field of battery tray fixtures, and in particular to a welding processing fixture for a battery tray of a new energy vehicle. Background Art

[0002] During the welding robot processing process, the battery tray of new energy vehicles usually requires a clamping device to position and clamp the product, so that the welding robot programming zero point and the product clamping zero point coincide with each other, facilitating automated welding by the welding robot.

[0003] For example, the patent with publication number CN222740638U, titled "A Gas-Driven Automated Clamp for Processing New Energy Vehicle Battery Trays", with an authorization announcement date of 2025.04.11, includes a base plate, a fixed plate is fixedly provided on the top of one side of the base plate, and a slide is slidably provided on the side of the base plate away from the fixed plate, the slide is connected to an automatic clamping device, and the automatic clamping device includes a pressurized limiting structure and an atomizing heat dissipation structure, the pressurized limiting structure includes a slide groove provided on the base plate, a lead screw is rotatably provided in the slide groove, a slider is fixedly provided at the bottom of the slide groove, and the size of the slider matches the slide groove, and the slider is threadedly connected to the lead screw. This utility model can adapt to different models of battery trays for clamping by automatically pressurizing and fixing through the pressurized limiting structure, and can control the pressurized pressure. Through the atomizing heat dissipation structure, when performing fixed welding work, when the clamp is separated from the workpiece, it automatically outputs atomized airflow to the air near the workpiece, thereby achieving a better cooling and heat dissipation effect;

[0004] The shortcoming of the existing technology is that the existing clamping fixtures are generally customized for a specific new energy vehicle battery tray product model, and the irregular edge clamps of the existing new energy battery tray body cannot be adaptively fitted, resulting in the phenomenon of customized fixtures for a variety of different irregular pallet frames. The clamping operation is not convenient enough, which affects the clamping efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a new energy vehicle battery tray welding processing fixture, which drives the clamping block fixed at the bottom end through the guide bar to press the pallet body against the support seat fixed at the top of the support frame or the support frame fixed at the top of the movable frame, and transmits the linkage assembly through the fixed clamping part in the fixed clamping unit, so that the linkage assembly will be fitted to the support column of the pallet body for position limitation, so that the rotatable support column is limited to a non-rotatable state through the linkage assembly, thereby achieving a high degree of fit for the irregular edge clamping method of the new energy battery tray body of the present invention, and reducing the phenomenon of customized fixtures due to a variety of different irregular pallet frames.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a new energy vehicle battery tray welding processing fixture, comprising a track frame and a fixed clamping unit fixed to its top end and a movable clamping unit slidably connected thereto; the movable clamping unit comprises a movable frame, a hydraulic pump for driving the movable clamping unit to move is fixedly connected to the movable frame, and the movable frame is driven by the hydraulic pump through the hydraulic rod of the fixed clamping unit at one end of the hydraulic pump and the fixed clamping unit to move in a directional manner along the track frame; a plurality of movable clamping parts are movably provided in the movable frame, and a reset component is provided at the bottom end of the movable clamping part, and the movable clamping part is moved along the movable frame by the reset component The slide rail groove provided on the frame fits tightly on the pallet body, and the movable clamping part includes a slider for directional movement along the slide rail groove, and a support column is rotatably provided at the top end of the slider, and an arc stop bar is fixedly connected to one end of the support column, and the arc stop bar is adapted to fit the inclined surface of the pallet body. The top end of the support column is fixedly connected to a limit bar, and one end of the limit bar is provided with a guide bar, and the pallet body is clamped and fixed by a clamping block fixed to the bottom end of the guide bar; it also includes a linkage assembly, which limits the movable clamping part that fits the pallet body by locking the reset assembly through the linkage assembly, ensuring that the movable clamping part connected to the reset assembly stably clamps the pallet body;

[0007] As a further description of the above technical solution:

[0008] The support column is fixedly connected to one end away from the arc-shaped block bar with a pneumatic pump, a retractable telescopic rod is provided at the top of the pneumatic pump, a directional member is fixed at the top of the telescopic rod, a slide bar for driving the clamping block to move is provided in the directional member, and the slide bar is fixedly connected to the guide bar.

[0009] As a further description of the above technical solution:

[0010] One end of the arc-shaped blocking bar is fixedly connected to a flat plate, and both ends of the flat plate are symmetrically fixedly connected to fixing rings, and the fixing rings are fixedly connected to the supporting column.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the support column is sleeved with a sleeve, and the bottom end of the support column passes through the sleeve and is fixed with a rotating cone wheel, and the sleeve is fixed in the slider. Moving wheels are symmetrically rotated at both ends of the slider, and the moving wheels are arranged in the slide rail groove.

[0013] As a further description of the above technical solution:

[0014] One end of the rotating bevel wheel is meshed with a bevel gear, one end of the bevel gear is fixedly connected to a rotating block, a limiting sleeve is sleeved on the outer side of the rotating block, and the limiting sleeve is fixedly connected to the sliding block.

[0015] As a further description of the above technical solution:

[0016] A square shaft rod is provided through the rotating block, and two ends of the square shaft rod are symmetrically fixed with limiting caps. A bracket is sleeved on the outer side of the limiting cap, and the bracket is fixed on the movable frame.

[0017] As a further description of the above technical solution:

[0018] The limiting cap passes through the bracket and is fixedly connected to the gear block. One end of the limiting cap away from the gear block is fixedly connected to a tension spring, and the tension spring elastically drives the slider to reset along the slide rail groove.

[0019] As a further description of the above technical solution:

[0020] The directional member includes a support rod, and the support rod is fixed on the telescopic rod. A connecting plate is fixed to the top of the support rod. Cross bars are symmetrically fixed at both ends of the connecting plate. Limiting plates are symmetrically fixed at both ends of the cross bar. Limiting wheels are symmetrically provided in the limiting plates, and the limiting wheels clamp the guide rails fixed at both ends of the slide bar.

[0021] As a further description of the above technical solution:

[0022] The linkage assembly includes a pressure bar rod, and the pressure bar rod is slidably arranged on the movable frame. The bottom end of the pressure bar rod is fixed with multiple brake bars, and the brake bars are adapted to the gear block. Linkage rods are provided at both ends of the pressure bar rod. One end of the linkage rod is fixed with an abutment rod, and the top end of the abutment rod is fixed with a top plate.

[0023] As a further description of the above technical solution:

[0024] The end of the abutment rod close to the pneumatic pump is provided with a fixing ear, and the fixing ear is fixed on the pneumatic pump. One end of the fixing ear is fixedly connected to a reset spring, the bottom end of the reset spring is fixedly connected to a limiting ear, and the limiting ear is fixedly connected to the abutment rod.

[0025] The present invention provides a new energy vehicle battery tray welding fixture, which has the following beneficial effects:

[0026] In the present invention, the guide bar drives the clamping block fixed at the bottom to press the pallet body against the support seat fixed at the top of the support frame or the support frame fixed at the top of the movable frame, and the fixed-point clamping part in the fixed clamping unit drives the linkage assembly so that the linkage assembly will be fitted to the support column of the pallet body for position limiting, so that the rotatable support column is limited to a non-rotatable state through the linkage assembly, thereby achieving a high degree of fit for the irregular edge clamping method of the new energy battery pallet body of the device, reducing the phenomenon of customized fixtures due to a variety of different irregular pallet frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a welding fixture for a new energy vehicle battery tray proposed by the present invention;

[0028] Figure 2 Schematic diagram of the structure of the support frame in the present invention;

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure at A in the middle;

[0030] Figure 4 Schematic diagram of the structure of the hydraulic pump in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the movable frame in the present invention;

[0032] Figure 6 This is a schematic structural diagram of the square shaft rod of the present invention;

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the local structure at B in the middle;

[0034] Figure 8 Schematic diagram of the structure of the abutment rod in the present invention;

[0035] Figure 9 For the present invention Figure 8 Schematic diagram of the local structure at C in the middle;

[0036] Figure 10 Schematic diagram of the structure of the support column in the present invention;

[0037] Figure 11 Schematic diagram of the structure of the arc-shaped stop bar in the present invention;

[0038] Figure 12 It is a structural schematic diagram of the directional member in the present invention.

[0039] Legend: 1. Track frame; 2. Fixed clamping unit; 21. Support frame; 22. Support seat; 23. Fixed-point clamping piece; 3. Movable clamping unit; 31. Movable frame; 311. Slide rail groove; 32. Support frame; 33. Movable clamping piece; 331. Support column; 332. Arc-shaped stop bar; 3321. Flat plate; 3323. Fixed ring; 333. Limiting bar; 334. Slide bar; 335. Guide bar; 336. Clamping block; 337. Pneumatic pump; 338. Telescopic rod; 339. Orienting piece; 3391. Support rod; 3392. Connecting plate; 3393. Horizontal bar; 3394. Limiting plate; 3395, limiting wheel; 3310, sleeve; 3311, slider; 3312, moving wheel; 3313, rotating bevel wheel; 34, hydraulic pump; 341, hydraulic rod; 35, reset assembly; 351, square shaft rod; 352, gear block; 353, bracket; 354, rotating block; 355, bevel gear; 356, limiting sleeve; 357, tension spring; 358, limiting cap; 4, linkage assembly; 41, pressure bar rod; 42, brake bar; 43, linkage rod; 44, abutment rod; 45, fixing ear; 46, reset spring; 47, limiting ear; 48, top plate; 5, tray body. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figure 1-12, a new energy vehicle battery tray welding fixture, including a track frame 1 and a fixed clamping unit 2 fixed to its top and a movable clamping unit 3 in sliding connection; the movable clamping unit 3 includes a movable frame 31, and a hydraulic pump 34 for driving the movable clamping unit 3 to move is fixedly connected to the movable frame 31, and the movable frame 31 is driven by the hydraulic pump 34 through one end of the hydraulic pump 34 and the hydraulic rod 341 of the fixed clamping unit 2 to make the movable frame 31 move along the track frame 1 in a directional manner; a plurality of movable clamping parts 33 are movably provided in the movable frame 31, and a reset component 35 is provided at the bottom end of the movable clamping part 33, and the reset component 35 is used to make the movable clamping part 33 fit tightly on the tray body 5 along the slide groove 311 opened on the movable frame 31, and the movable The movable clamping member 33 includes a slider 3311 for directional movement along the slide rail groove 311, a support column 331 is rotatably provided at the top of the slider 3311, one end of the support column 331 is fixedly connected to an arc-shaped stop bar 332, which is adapted to fit the inclined surface of the tray body 5 through the arc-shaped stop bar 332, and the top of the support column 331 is fixedly connected to a limit bar 333, one end of the limit bar 333 is provided with a guide bar 335, and the tray body 5 is clamped and fixed by a clamping block 336 fixed to the bottom end of the guide bar 335; the movable clamping member 33 also includes a linkage assembly 4, which locks the reset assembly 35 through the linkage assembly 4 to limit the movable clamping member 33 that fits the tray body 5, ensuring that the movable clamping member 33 connected to the reset assembly 35 stably clamps the tray body 5;

[0042] The movable frame 31 is moved along the track frame 1 by the hydraulic pump 34 fixed in the movable frame 31 of the movable clamping unit 3 to retract and extend the hydraulic rod 341, so that the hydraulic rod 341 abuts against the support frame 21 in the fixed clamping unit 2, and the movable frame 31 is driven by the hydraulic pump 34 to move along the track frame 1, so that the movable clamping unit 3 can be moved to clamp the pallet body 5 as a whole. The plurality of movable clamping parts 33 provided in the movable frame 31 are used to drive the slider 3311 for moving the support column 331. The slider 3311 is symmetrically connected at both ends and is arranged in a guide groove for directional movement. An elastic structure is provided between the slider 3311 and the reset assembly 35, and the pallet body 5 abuts against the arc fixed at one end of the support column 331 through the pallet body 5. When the cam 331 is in the state of being rotated, the cam 332 of the movable frame 31 is pressed against the support frame 21, and the cam 333 of the movable frame 31 is pressed against the support frame 21.

[0043] The support column 331 is fixedly connected to one end away from the arc-shaped stop bar 332 with an air pump 337, and a retractable telescopic rod 338 is provided at the top of the pneumatic pump 337. A directional member 339 is fixedly connected to the top of the telescopic rod 338. A slide bar 334 for driving the clamping block 336 to move is provided in the directional member 339, and the slide bar 334 is fixedly connected to the guide bar 335; a flat plate 3321 is fixedly connected to one end of the arc-shaped stop bar 332, and a fixing ring 3323 is symmetrically fixedly connected to the two ends of the flat plate 3321, and the fixing ring 3323 is fixedly connected to the support column 331; a sleeve 3310 is provided at the bottom end of the support column 331, and a rotating The bevel wheel 3313 and the sleeve 3310 are fixed within the slider 3311. The slider 3311 has symmetrically rotatable movable wheels 3312 at both ends. The movable wheels 3312 are located within the slide rail groove 311. One end of the rotating bevel wheel 3313 is meshed with a bevel gear 355. One end of the bevel gear 355 is fixedly connected to a rotating block 354. A limiting sleeve 356 is sleeved on the outer side of the rotating block 354, and the limiting sleeve 356 is fixed to the slider 3311. A square shaft 351 extends through the rotating block 354. Limiting caps 358 are symmetrically fixed to both ends of the square shaft 351. A bracket 353 is sleeved on the outer side of the limiting cap 358, and the bracket 353 is fixedly connected to the movable frame 31.

[0044] The limiting cap 358 passes through the bracket 353 and is fixedly connected to the gear block 352. The end of the limiting cap 358 away from the gear block 352 is fixedly connected to a tension spring 357, and the tension spring 357 elastically drives the slider 3311 to return to the slide rail groove 311; the directional member 339 includes a support rod 3391, and the support rod 3391 is fixed to the telescopic rod 338. The top of the support rod 3391 is fixedly connected to a connecting plate 3392, and the two ends of the connecting plate 3392 are symmetrically fixed to horizontal bars 3393. The two ends of the horizontal bar 3393 are symmetrically fixed to limiting plates 3394. Limiting wheels 3395 are symmetrically provided inside the limiting plates 3394, and the limiting wheels 3395 clamp the guide rails fixed to the two ends of the slide bar 334;

[0045] Specifically, the support column 331 is a cylindrical structure, and an arc-shaped stop bar 332 and an air pump 337 are fixed at both ends of the support column 331. The arc-shaped stop bar 332 is made of rubber, and a flat plate 3321 is fixed at one end of the arc-shaped stop bar 332. The flat plate 3321 is fixed to the support column 331 through fixing rings 3323 at both ends; the air pump 337 drives the telescopic rod 338 at the top to move, and the directional member 339 fixed at the top of the telescopic rod 338 uses a limiting slide 334, which is fixed to the two ends of the guide rail in the slide 334 through the limiting wheel 3395 in the directional member 339, and is fixed to the telescopic rod 338 through the support rod 3391. When the air pump 337 drives the telescopic rod 338 to move upward, the slide 334 drives the guide bar 33 5 along the limiting block fixed at the end of the limiting bar 333 moves upward, so that the clamping block 336 fixed to the guide bar 335 moves upward synchronously and separates from the tray body 5. The guide bar 335 is a vertical "Z"-shaped structure, and grooves for limiting the limiting blocks are provided at both ends of the guide bar 335. When the pneumatic pump 337 drives the clamping block 336 to move, the clamping block 336 completes the movement stroke of retracting on the downward protruding line through the guide bar 335 structure, so that the clamping block 336 can avoid the welding head in sequence during the welding process of the tray body 5, ensuring the continuity of the welding process of the tray body 5. The retractable clamping block 336 structure is a prior art and will not be described in detail. It is located on the support column 331 and is installed on the slider 3311 through the sleeve 3310. The bottom end of 331 is fixed with a rotating bevel wheel 3313 (in the prior art) which meshes with the bevel gear 355. The bevel gear 355 and the rotating block 354 fixed to one end thereof are both provided with a rectangular slot, in which a square shaft rod 351 is movably provided. The limiting caps 358 fixed at both ends of the square shaft rod 351 cooperate with the bracket 353 to be installed on the movable frame 31. The limiting caps 358 and the rotating block 354 are connected by a tension spring 357. The tension spring 357 and the rotating block 354 are in a movable connection structure. The tension spring 357 is the elastic structure mentioned above and is used for the elastic force support column 331, so that the arc stop bar 332 fixed at the top of the support column 331 is in contact with the edge of the tray body 5. When When the movable clamping unit 3 moves toward the fixed clamping unit 2, the curved stop bar 332 made of rubber rests on the oblique edge of the tray body 5. The curved stop bar 332 drives the support column 331 to rotate through the friction force of the rubber, and the curved stop bar 332 rotates until the flat plate 3321 fits the oblique edge of the tray body 5, so that the clamping block 336 rotates synchronously with the curved stop bar 332. The flat plate 3321 and the clamping block 336 are in a horizontal structure. When the curved baffle and the tray body 5 become in contact and move, the flat plate 3321 fixed to the curved stop bar 332 fits the oblique edge of the tray body 5, so that the clamping block 336 in a horizontal structure can clamp the tray body 5 with the oblique edge. The tray body 5 can be adaptively fitted according to different oblique edges.

[0046] The linkage assembly 4 includes a pressure bar rod 41, and the pressure bar rod 41 is slidably arranged on the movable frame 31. The bottom end of the pressure bar rod 41 is fixedly connected to a plurality of brake bars 42, and the brake bars 42 are adapted to the gear block 352. A linkage rod 43 is provided at both ends of the pressure bar rod 41. One end of the linkage rod 43 is fixedly connected to an abutting rod 44, and the top end of the abutting rod 44 is fixedly connected to a top plate 48; the end of the abutting rod 44 close to the pneumatic pump 337 is provided with a fixing ear 45, and the fixing ear 45 is fixed to the pneumatic pump 337. One end of the fixing ear 45 is fixedly connected to a return spring 46, and the bottom end of the return spring 46 is fixedly connected to a limiting ear 47, and the limiting ear 47 is fixed to the abutting rod;

[0047] Specifically, the pressure bar rod 41 in the linkage assembly 4 is slidably arranged on the movable frame 31, and when the tray body 5 is clamped by the fixed point clamping part 23 in the fixed clamping unit 2, the abutment rod 44 movably connected at one end of the pneumatic pump 337 drives the linkage rod 43 to move downward through the force of the top plate 48 at the top end, and the return spring 46 fixed to the abutment rod 44 through the limiting ear 47 is stretched, and the pressure rod connected to the linkage rod 43 drives the rack fixed thereto to mesh with the gear block 352, so that the square shaft rod 351 fixed to the gear block 352 cannot rotate, and the bevel gear 355 slidably connected to the square shaft rod 351 limits the rotating bevel wheel 3313, so that the support column 331 is limited after the fixed clamping unit 2 clamps the tray body 5, so that the support column 331 cannot rotate after being limited, thereby ensuring the stability of the movement of the clamping block 336 on the support column 331.

[0048] Working principle: First, load the pallet body 5 and the edges: start the hydraulic pump 34 located in the movable frame 31. The hydraulic pump 34 is fixed to the movable frame 31 in the movable clamping unit 3. The hydraulic pump 34 drives the hydraulic rod 341 to extend and retract, so that the hydraulic rod 341 rests on the support frame 21 in the fixed clamping unit 2. The hydraulic pump 34 drives the movable frame 31 to move along the track frame 1, so that the movable clamping unit 3 is separated from the fixed clamping unit 2, and the pallet body 5 and the edges are placed on the support seat 22 and the support frame 32;

[0049] Secondly, the movable clamping unit 3 is combined with the fixed clamping unit 2 to clamp the pallet body 5 and the edge horizontally: the movable clamping unit 3 is closed with the fixed clamping unit 2 by the hydraulic pump 34 in cooperation with the hydraulic rod 341, wherein, when the pneumatic pump 337 drives the telescopic rod 338 to move upward, the slide bar 334 drives the guide bar 335 to move upward along the limiting block fixed at the end of the limit bar 333, so that the clamping block 336 fixed to the guide bar 335 moves upward synchronously and separates from the pallet body 5, and the guide bar 335 is a vertical "Z"-shaped structure, and there are limit blocks at both ends of the guide bar 335. When the pneumatic pump 337 drives the clamping block 336 to move, the clamping block 336 completes the movement stroke of retracting on the downward protruding line through the guide bar 335 structure, so that the clamping block 336 of the pallet body 5 can avoid the welding head in turn during the welding process, thereby ensuring the continuity of the pallet body 5 during the welding process; when the movable clamping unit 3 moves toward the fixed clamping unit 2, the arc-shaped stop bar 332 made of rubber rests on the oblique edge of the pallet body 5, and the friction force of the rubber drives the arc-shaped stop bar 332 to rotate the support column 331, and causes the arc-shaped stop bar 332 to rotate until the flat plate 3321 and the pallet body are aligned. 5 is fitted with the inclined edge, so that the clamping block 336 rotates synchronously with the arc stop bar 332. The flat plate 3321 and the clamping block 336 are in a horizontal structure, so that when the arc baffle and the tray body 5 are tilted and fitted and moved, the flat plate 3321 fixed to the arc stop bar 332 fits the inclined edge of the tray body 5, so that the clamping block 336 with a horizontal structure can clamp the tray body 5 with the inclined edge; it can adapt to the tray body 5 with different inclined edges; when the fixed-point clamping part 23 in the fixed clamping unit 2 clamps the tray body 5, the abutting rod 44 movably connected at one end of the pneumatic pump 337 The force exerted by the top plate 48 drives the connecting rod 43 downward, and the return spring 46 fixed to the abutting rod 44 through the limiting ear 47 is stretched, and the pressure rod connected to the connecting rod 43 drives the rack fixed thereto to mesh with the gear block 352, so that the square shaft rod 351 fixed to the gear block 352 cannot rotate. The bevel gear 355 slidably connected to the square shaft rod 351 limits the rotation of the bevel gear 3313, so that the support column 331 is limited after the fixed clamping unit 2 clamps the tray body 5, so that the support column 331 cannot rotate after being limited, thereby ensuring the stability of the movement of the clamping block 336 on the support column 331;

[0050] Finally, the welded pallet body 5 and the edge are separated, and the hydraulic pump 34 drives the movable frame 31 to move along the track frame 1, so that the movable clamping unit 3 is separated from the fixed clamping unit 2, and the welded pallet body 5 and the edge are taken out, completing the welding process of the pallet body 5 and the edge.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding fixture for a new energy vehicle battery tray, characterized in that: It includes a track frame, a fixed clamping unit fixed to the top of the track frame, and a movable clamping unit connected in a sliding manner; The movable clamping unit includes a movable frame, in which a hydraulic pump for driving the movable clamping unit is fixedly connected. One end of the hydraulic pump is connected to a hydraulic rod of the fixed clamping unit, and the movable frame is driven by the hydraulic pump to move in a directional manner along the track frame. The movable frame is provided with a plurality of movable clamping parts, and a reset assembly is provided at the bottom end of the movable clamping part, and the movable clamping part is tightly fitted on the pallet body along the slide groove opened by the movable frame through the reset assembly. The movable clamping part includes a slider for directional movement along the slide groove, and a support column is provided at the top end of the slider, and an arc stop bar is fixedly connected to one end of the support column, and the arc stop bar is adapted to fit the inclined surface of the pallet body; the top end of the support column is fixedly connected to a limit bar, and one end of the limit bar is provided with a guide bar, and the pallet body is clamped and fixed by a clamping block fixed at the bottom end of the guide bar; The bottom end of the support column is sleeved with a sleeve, and the bottom end of the support column passes through the sleeve and is fixedly connected to a rotating bevel wheel, and the sleeve is fixed in the slider, one end of the rotating bevel wheel is meshed with a bevel gear, and one end of the bevel gear is fixedly connected to a rotating block, a square shaft rod is passed through the rotating block, and both ends of the square shaft rod are symmetrically fixed with limiting caps, a bracket is sleeved on the outside of the limiting cap, and the bracket is fixed to the movable frame, and the limiting cap passes through the bracket and is fixed to the gear block, It also includes a linkage assembly, which locks the reset assembly through the linkage assembly to limit the movable clamping piece that fits the pallet body, ensuring that the movable clamping piece connected to the reset assembly stably clamps the pallet body, and the linkage assembly is transmitted by the fixed clamping piece in the fixed clamping unit. The linkage assembly includes a pressure bar rod, and the pressure bar rod is slidably arranged on the movable frame. The bottom end of the pressure bar rod is fixed with a plurality of brake strips, and the brake strips are adapted to the gear block. Linkage rods are provided at both ends of the pressure bar rod, and one end of the linkage rod is fixed with an abutting rod, and the top end of the abutting rod is fixed with a top plate.

2. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: The support column is fixedly connected to one end away from the arc-shaped block bar with a pneumatic pump, a retractable telescopic rod is provided at the top of the pneumatic pump, a directional member is fixed at the top of the telescopic rod, a slide bar for driving the clamping block to move is provided in the directional member, and the slide bar is fixedly connected to the guide bar.

3. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: One end of the arc-shaped blocking bar is fixedly connected to a flat plate, and both ends of the flat plate are symmetrically fixedly connected to fixing rings, and the fixing rings are fixedly connected to the supporting column.

4. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: The two ends of the slider are symmetrically rotated with moving wheels, and the moving wheels are arranged in the slide rail grooves.

5. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: A limiting sleeve is sleeved on the outer side of the rotating block, and the limiting sleeve is fixedly connected to the sliding block.

6. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: A tension spring is fixedly connected to one end of the limiting cap away from the gear block, and the sliding block is elastically driven by the tension spring to move back along the slide rail groove.

7. A new energy vehicle battery tray welding fixture according to claim 2, characterized in that: The directional member includes a support rod, and the support rod is fixed on the telescopic rod. A connecting plate is fixed to the top of the support rod. Cross bars are symmetrically fixed at both ends of the connecting plate. Limiting plates are symmetrically fixed at both ends of the cross bar. Limiting wheels are symmetrically provided in the limiting plates, and the limiting wheels clamp the guide rails fixed at both ends of the slide bar.

8. A new energy vehicle battery tray welding fixture according to claim 1, characterized in that: The end of the abutment rod close to the pneumatic pump is provided with a fixing ear, and the fixing ear is fixed on the pneumatic pump. One end of the fixing ear is fixedly connected to a reset spring, the bottom end of the reset spring is fixedly connected to a limiting ear, and the limiting ear is fixedly connected to the abutment rod.

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